Method of and device to supply electronic safety system of load-lifting crane (versions)

FIELD: mechanical engineering; load-lifting cranes.

SUBSTANCE: invention can be used in control and protection system of load lifting cranes to preclude overloads and damage in crane mechanisms. Proposed system consists of separate parts made in form of at least one electronic unit and pickups measuring parameters of load-lifting crane. To supply electronic circuit of any component of safety system use is made of self-contained supply source which is constantly or periodically charged. Conversion of mechanical energy of load or boom rope, or energy of measured parameter of operation of load-lifting crane, mechanical energy of measured load in boom or load rope, angle of azimuth length of boom, etc or hydraulic energy of measured pressure in hydraulic cylinder or in hydraulic boom lifting/lowering motor, load-gripping member or slewing platform of load-lifting crane or energy of external mechanical, acoustic or heat ambient medium onto parameter pickup of load lifting crane into electric energy is provided.

EFFECT: simplified servicing, improved reliability, provision of serviceability of safety system at cut off supply.

23 cl, 1 dwg

 

The invention relates to mechanical engineering and can be used in control systems and protection from overload and damage jib, tower and overhead cranes.

There is a method of power electronic security systems crane, consisting of interconnected electronic components and sensors settings crane, by passing the supply voltage from the vehicle crane in each electronic unit and the sensor, stabilize the transmitted voltage and its subsequent use to power the electronics of the unit or sensor [1].

A device for implementing this method - stable device power system security load-lifting crane, contains voltage regulators installed in each unit and each sensor security system, and the inputs of the stabilizer is connected to the power supply lines connected to the onboard network load-lifting crane, and outputs connected to the power pins of the electronic circuits of blocks and sensors [1].

In this technical solution, the power units and the sensors are only after submission of security-voltage on-Board network load-lifting crane. This eliminates the possibility of measuring the parameters of the capacity is on tap in off the General power supply voltage security. In addition, the need for wiring of power supply to each block and the sensor increases the complexity of the installation and repair of security systems on the faucet and reduce its reliability.

The closest to the invention is a method of power electronic security systems crane, composed of electronic components and sensors settings crane, consisting in the storage of electrical energy, at least one auxiliary power source, the equipment of this power source sensor parameters crane and use of electrical energy independent source to power the electronics of the sensor [2].

A device for implementing the known method of feeding electronic security systems crane, composed of electronic components and sensors settings crane, contains at least one Autonomous power supply - galvanic cell galvanic battery, the battery and/or solar cell, is placed in the sensor setting crane and connected to the power supply circuit of the electronic circuit of the sensor [2].

In the known technical solution, thanks to the use of a standalone power source, provided the reduction of communication lines IU the remote control component parts of the security system. This increases the reliability and ease of installation of the security system on the crane.

However, the achieved simplify maintenance and improve reliability is low. This is because, in the case of use as a standalone power source of a galvanic cell or galvanic battery requires periodic replacement. This leads to the complication of the maintenance of the security system. In addition, when untimely replacement of a galvanic cell or galvanic battery is an unacceptable voltage drop of the power electronic circuit of the sensor, resulting in reduced system reliability and security in General. Similar disadvantages also has security system, in which as a standalone power source is battery without automatic recharging. In this case, instead of replacing a galvanic cell or galvanic batteries need maintenance - charging the battery, and the necessary stability supply voltage of the electronic circuit is also not ensured due to the gradual discharge of the battery.

If in the known technical solution is used the battery in combination with a solar cell, it also does not eliminate the need for maintenance of the system without the security, because the crane required periodic cleaning of the solar cell from contamination. In addition, in the event of late cleaning of the solar cell decreases its efficiency, which leads to an unacceptably high discharge and, accordingly, decrease the reliability of the security system.

In addition, in the known technical solution is not serviceability security disabled when the total voltage of its power supply, including a supply voltage of electronic components and a power part of the security system.

The challenge aimed proposed technical solution is to simplify maintenance and increase system reliability and security, as well as providing the possibility of its work while disconnected from the common power supply voltage.

In the proposed method of power electronic security systems crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, consisting in the storage of electrical energy, at least one auxiliary power source, the equipment of this power source, at least, one of the Oh part of the security system and using this electrical energy to power the electronics of this part of the security system, this technical result is achieved due to the fact that, depending on the implementation of this method, additional:

- carry out the conversion of mechanical energy, at least one moving part of the crane, in particular, the cargo or the boom of a hoisting rope of a crane or block to guide the rope into electrical energy;

- carry out the conversion of the energy changes of the measured sensor parameter works crane into electrical energy. When this is used, in particular, the mechanical energy of the measured load, strelba or cargo rope crane, rotation or displacement integral part of the crane (azimuth angle, the length of the boom and the like), or hydraulic energy of the measured pressure in the hydraulic device of the lifting crane in hydrocylinder or hydraulic engine hoist/lowering boom, hauling or turntable crane;

- carry out the conversion of the energy of external mechanical, acoustic or thermal effects lifting of the machine or the environment at the above-mentioned sensor into electrical energy. In particular, use the mechanical energy of vibrations, acoustic noise energy or thermal energy RA is otudeko engine lifting machine or the environment, or mechanical energy linear or angular movements of the sensor. In this case, can also be detected absence of mechanical energy of vibrations or acoustic energy of the sound of engine lifting machine, and then switch the electronic circuit integral part of the security system in a low power mode;

- carry out wireless transmission of electrical energy, at least in one part of the security system using at least one metal element of the construction crane, in particular, its cargo or the boom rope;

- detect the presence of voltage on a wire line connecting the component parts of the security system, and when this voltage transfer electrical energy from this wired into the power circuit of the electronic circuit.

In all embodiments of the proposed method, converted or received electrical energy is passed into stand-alone power source where carry out its accumulation.

A device for implementing the method of power electronic security systems crane, consisting of separate parts, made in the form of at least one electronic unit and m is Nisha least one sensor, carrying out measurement of at least one parameter of operation of loading crane, containing at least one self-contained power source, placed at least in one part of the security system and is connected to the power supply circuit of the electronic circuit of this integral part of the security system, this technical result is achieved due to the fact that it, depending on the option implemented method further comprises:

generator is made with the possibility of mechanical interaction, at least one part of the load-lifting crane, and with the ability to convert mechanical energy of moving this integral part of the crane into electrical energy, the generator output directly or through an additional inverter current or voltage connected to independent power source. In particular, the generator is performed using electromagnetic induction or piezoelectric effect with the possibility of mechanical interaction with cargo or loaded by a rope hoisting crane or block, guiding the rope, and with the ability to convert mechanical energy of linear or rotational movement into electrical energy;

Pres is OBRAZOVATEL mechanical or hydraulic energy of the measured parameter of the operation of loading crane into electrical energy, made in the form of electric generator using electromagnetic induction or piezoelectric effect, and the output of this electric generator directly or via an additional Converter or voltage output connected to independent power source. The electric generator has, in particular, the input shaft or input transmission device that is connected/connected with the shaft or with the motion of the measured rotation angle sensor of the working crane - shaft angle sensor azimuth or transfer mechanism angle of rotation of the cable drum in the gauge length of the jib crane. The electric generator may also include an elastic element placed on the crane, with the possibility of exposure to efforts in the cargo or strelba the rope or the efforts transmitted by this rope on the block to guide the rope or piston, membrane or bubble hydraulic accumulator connected to the channel pressure measurement. In these cases, the generator runs with the possibility of energy conversion move the elastic element and accumulated in the hydraulic accumulator hydraulic energy into electrical energy;

receiver mechanical, acoustic or heat energy to the energy impact loading or environmental sensor setting crane, the receiver is connected to the Converter of this energy into electrical energy, the output of which is directly or through an additional inverter current or voltage connected to independent power source. The receiver is made, in particular, in the form of inertial mass on an elastic suspension, and the energy Converter made in the form of electromagnetic or piezoelectric transducer energy of this movement of the inertial mass into electrical energy, or the receiver with the energy Converter made in the form of a thermoelectric device. The energy Converter may also include a comparator configured to signal the absence of displacement of the inertial mass and the electronic circuit may include an additional input switch to the power saver mode, which is connected to the output of the specified comparator;

- wireless transmission of electrical energy, at least one metal element of the construction crane, made in the form of a transmitter and a receiver AC or DC, which are placed in various parts of the crane or in different parts of the security, and the output of the receiver directly or through an optional current transducer is whether voltage is connected to a standalone power source. The transmitter and receiver contain, in particular, transformers, and the winding of the transformer of the transmitter is connected to the generator AC voltage winding of the transformer of the receiver is connected to the input of the specified Converter current or voltage, and the magnetic circuits of transformers cover freight or : rope hoisting crane;

Converter current or voltage, the input of which is connected to a wired communication line, and the output is connected with an Autonomous power source.

In all embodiments of the proposed method, an Autonomous power supply made in the form of a battery or a capacitor.

Sales of electric power electronic security hoisting crane with these distinctive features allows automatic charging a standalone power source (battery or capacitor) directly in the process of hoisting crane without participation of the operator or maintenance personnel. This eliminates the need for maintenance of security in terms of supply and ensures the normal value of the electric voltage to the electronic circuits of the system in all operating conditions of the load-lifting crane. This leads to increased reliability of systemtimetodatetime and allows it to work while disconnected from the common power supply voltage, including faulty onboard network load-lifting crane.

Therefore, the distinguishing features of the claimed technical solution are in direct causal relationship with achievable technical result.

Explain the technical essence of the proposed method for power electronic circuit of the safety device and its variants by describing the work implement their devices.

The drawing shows an example functional diagram of a security system load-lifting crane, which has a suggested way of eating.

Security system crane in the General case contains N (1.1, 1.2...1.N) parts, made in the form of electronic components and sensors, performing the measurement operation of the lifting crane. At least one unit or sensor 1 (1.1, 1.2...1.N) contains the electronic circuit 2 and an Autonomous power supply 3, placed in the unit or the sensor 1 and is connected to the power supply circuit of the electronic circuit 2.

The electronic circuit 2 is made, usually based on a microcontroller that is connected (or its members) operational and non-volatile (program memory) storage device, a real time clock, a clock generator, the memory unit Registrar settings, interface circuit, etc.

Blocks and sensors 1.1, 1.2...1.N connected between the among themselves by means of, at least one wired or wireless communication line 4. Accordingly, the composition of the interface circuits of each of the electronic circuit 2 includes a transceiver, a controller, or driver serial multiplex communication channel - CAN, LIN, and the like, or a wireless communication channel, Wi-Fi, Bluetooth, ZigBee and the like, or the communication channel on a separate wire.

Each unit or sensor 1.1, 1.2...1.N may further comprise control and/or display 5 (a set of buttons, keys, character and single indicators and the like), a control device 6 (for example, one or more power electronic keys) and a transmitter 7, designed to measure a parameter of operation of the lifting crane.

Primary Converter 7 may be made in the form of strain gauge force sensor or strain gauge pressure sensors installed in the rod and piston cavities of the lift cylinder, the potentiometric sensor azimuth angle and the length of the boom (the angle sensor cable drum), micromechanical accelerometer - sensor boom angle sensor proximity to power lines, etc. Required set of primary converters 7 and, accordingly, the operating parameters of the crane is to be measured, is determined by the specific design of the lifting edge is and the requirements requirements for the security system.

Amplifier-Converter devices necessary for the operation of primary converters 7, can be embedded either in these primary converters or electronic circuit 2, for example, in the form of built-in analog-to-digital Converter of the microcontroller.

Any unit or sensor 1.1, 1.2...1.N, depending on its purpose, may not contain controls and/or display 5, the actuator 6 and/or transducers 7, and may also include additional functional blocks are not shown in the drawing. In particular, the signals characterizing the results of the measurement of any parameter of operation of loading crane may enroll in the electronic circuit 2 any compound of part 1 of the safety system from any other part of this system.

In the basic versions of the proposed technical solution the power supply of the electronic circuit 2 is supplied from independent power source 3 with its concurrent or periodic recharging from the generator or the power Converter 8, the output of which is, if necessary, must be converted by the level of the output voltage or current using a current transformer or a voltage of 9, made in the form of the device charge avtonomna the power source 3 - battery or capacitor.

Charging a standalone power source 3 may also be performed directly from the communication line 4, if the security system contains at least one electric wire which is an integral part 1.1, 1.2...1.N security is transferred to the supply voltage from the onboard network load-lifting crane or information signals. In this case, one of the communication lines 4 are connected to the inverter input current or voltage 9 (conventionally in the drawing not shown).

The Executive unit 6, a transmitter 7 and the generator or the power Converter 8 interact with elements of the crane 10. The influence of the actuating devices 6 on the crane or on his part 10 includes the control parameters or modes of operation of its electro-hydraulic or Electromechanical actuators - on/off or regulating the speed of the mechanism for lifting/lowering and boom, swing crane, etc.

The interaction of primary converters 7 component parts of the lifting crane 10 includes transmission units and mechanisms of the crane parameters of its work (force, pressure, displacement and so on) on primary converters 7 to the placenta is the future of measurement.

One of the components of 1 security systems, acting as the Central unit of this system, working on the program stored in the memory of the microcontroller, after receiving the communication line 4 information about the values of the parameters crane, determines the current load of the crane and lifting his position (boom) equipment. Allowable loads of the crane for different spatial positions of its arrows are stored in a memory of the Central unit in the form of cargo characteristics of the crane. The valid area of the lifting provisions (boom) equipment crane is entered by the operator using controls 5 when the operation mode of the security system and the parameters of the coordinate protection and is also stored in the memory of the Central unit.

After comparing the actual load of the crane with the limit and comparing the actual position of lifting equipment area with valid provisions, the Central unit through its Executive unit 6 transmits the control signals to the actuators crane, allowing or blocking them, or changing the modes of operation of these actuators. This ensures protection of crane overload and coordinate protection.

Prosopo yameogo crane is the interaction of its constituent parts 10 to a generator or an energy Converter 8 with the purpose of generating electrical energy to power parts 1 security hoisting tap.

When this interaction is either conversion into electrical energy mechanical energy, at least one moving part of the crane 10, or wireless transmission of electrical energy, at least in one part of the security system 1 using at least one metal element of the construction crane.

In the first case, the generator or the power Converter 8 is made with the possibility of mechanical interaction, at least one part of the load-lifting crane, for example, trucks or loaded by a rope hoisting crane or block, guiding the rope. In particular, the input axis of the generator is performed using electromagnetic induction or piezoelectric effect, connected with the axis of the block that encloses the cargo or : rope. The movement of the rope during operation of the crane, for example, when lifting/lowering the load or boom, leads to rotation of the block and, respectively, to the rotation of the input axis of the generator 8. This converts the mechanical energy of movement of the rope in the electric, which, if necessary, is converted in level by the help of Converter current or voltage 9 and enters the food chain of the electronic circuit 2 is to charge a standalone power source 3. Similarly, electrical energy can be converted into mechanical energy of rotation of the platform crane, changing the angle of inclination of the boom, the movement of the crane as a whole, etc. In this implementation the design of the generator 8, perceiving rotational or translational movement of any part of the crane 10, depends on the specic design of hoisting crane and is an independent technical problem. Methods and technical means for solving this problem are known from the prior art.

Electrical energy to power the electronic circuit 2 and for recharging the ion source 3 may also be transferred to any part of the security on any metal element of the construction crane, in particular for stranovomu or cargo rope or the arrow. Device for such energy transfer can be performed, in particular, in the form of a transmitter and a receiver AC or DC, which are placed in various parts of the crane or in different parts of the security 1.1, 1.2...1.N, and the output of the receiver, similar to the generator 8, either directly or through an additional inverter current or voltage 9 is connected to a standalone power source 3. The transmitter and receiver contain, in the hour of the activity, transformers, the winding of the transformer of the transmitter is connected to the generator AC voltage, receiving energy from the vehicle crane, the winding of the transformer of the receiver is connected to the input of the specified Converter current or voltage, and the magnetic circuits of transformers cover freight or : hoisting rope of the crane, i.e. the cargo or : rope used as a three-dimensional orbits of these transformers. This option is useful for example, to power the electronics part of the security system 1, which represents the force sensor in the ropes supporting the boom.

In another embodiment, the implementation of the proposed method the generator or the power Converter 8 is made in the form of a Converter of mechanical or hydraulic energy of the measured parameter of the operation of loading crane into electrical energy. In this case, the input electric generator 8, made for example using electromagnetic induction or piezoelectric effect, enters the measuring parameter work crane - measured force measured pressure measured by the rotation angle of the turntable of the crane (the azimuth angle and so on).

If this operating parameter is the mechanical angular or l is nanoe move, the electric generator has an input shaft or input transmission device that is connected/connected with the shaft or with the motion of the measured rotation angle sensor of the working crane - shaft angle sensor azimuth or transfer mechanism angle of rotation of the cable drum in the gauge length of the jib crane. Using any well-known construction of the generator 8, perceiving rotational or translational movement.

If this operating parameter is a force, an electric generator, or the power Converter 8 includes an elastic element is a spring, torsion, etc. placed on the crane, with the possibility of exposure to efforts in the cargo or strelba the rope or the efforts transmitted by this rope on the block to guide the rope. In these cases, use the same generator that converts the energy of the linear displacement of this elastic element into electrical energy. And finally, if the measured parameter of the crane represents the pressure in the hydraulic cylinder, motor, etc. actuators crane), the generator or the power Converter 8 includes a piston, membrane or bubble hydraulic accumulator connected to the measurement channel Yes the population and performs conversion accumulated in the hydraulic accumulator hydraulic energy into electrical energy. Principles of construction of such converters are also known.

A feature of this variant of the proposed method is the possibility of obtaining a large electric power to the power system security and, accordingly, the possibility of powering the entire system, including its component parts 1 actuators 6. It is possible, in particular, the transfer of energy from one generator 8 that is installed in any part of the security system 1, to supply the entire security system using transfer this energy through the communication line 4 (in the drawing, the possible connection of the generator 8 or the inverter current or voltage 9 from line 4 conventionally not shown).

In another variant implementation of the method in the generator or the power Converter 8 is converted into electrical energy external mechanical energy, acoustic or thermal effects lifting of the machine or the environment in any part of the security system, primarily on the sensor of any parameter of the operation of loading the machine (due to lower energy consumption in the electronic circuitry of this part of the security system). In particular, it uses the mechanical energy of vibration, acoustic energy of the noise is or thermal energy of the engine lifting machine or the environment. It is also possible conversion into electrical energy mechanical energy linear or angular displacement sensor, for example, placed on the boom of the gauge length of the arrows, the proximity sensor to the power line, etc.

In this case, the generator or the power Converter 8 is in the form of receiver mechanical, acoustic or thermal energy impacts lifting machine or environment. The receiver is, in particular, in the form of inertial mass on an elastic suspension with electromagnetic or piezoelectric energy Converter vibrations or movements of this mass into electrical energy. When converting into electrical energy noise of the engine or the environment, such as a generator or energy Converter 8 can be used piezoelectric or electrodynamic microphone. In the case of use for electric power generation heat fluxes, for example, from the engine crane in the environment or flow of heat between two bodies when the change of day and night temperatures, generator - energy Converter 8 may be made in the form of a thermoelectric device, such as a Peltier element.

If the engine crane is not working and hoisting operations are not performed, in some cases with the wounding system health security is not necessary. In these cases, with the aim of increasing efficiency of any component parts 1 security, its transition to the operation mode can be automatically performed after starting the engine crane. For this purpose, the generator or Converter 8 energy of the noise or vibration of any part of the security system is additionally equipped with a comparator, which controls the low level or absence of a movement of the inertial mass of the receiver or the low level of the output signal of the acoustic transducer, which indicates the engine crane. In this case, the electronic circuit is performed in the low power mode, for example, off the clock of its microcontroller, and includes an additional input switch to the power saver mode, which is connected to the output of the specified Comparer.

When the security system of the electric wire, which transmitted information signals between the component parts of this system 1.1, 1.2...1.N, this wire (communication line) can be used to transfer electrical power from the vehicle crane in these parts. In this case, the communication line 4 is connected with the input of the Converter current or voltage 9, which its output is connected to a standalone power source 3 each component of the system to recharge.

In this specification, schematically shown are only examples provide electrical power to the component parts of the security system. The invention encompasses other possible or equivalent variants of their performance without departure from the invention set forth in the formula.

Sources of information

1. JP 59074895, MPK VS 23/90; G05F 1/58, 27.04.1984.

2. EN 2251524 C2, MPK7 VS 13/18, 15/00, 23/88, 10.05.2005.

1. Method of feeding electronic security systems crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, consisting in the storage of electrical energy, at least one auxiliary power source, the equipment of this power source, at least one part of the security and use of specified electrical energy to power the electronics of this part of the security system, characterized in that it further carry out the conversion of mechanical energy movement of the cargo or the boom of a hoisting rope of a crane, or block, guide the rope into electrical energy that is passed in an Autonomous power supply, in which nakoplenie is this electrical energy.

2. Apparatus for implementing a power electronic system security load-lifting crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, containing at least one self-contained power source, placed at least in one part of the security system and is connected to the power supply circuit of the electronic circuit of this integral part of the security system, characterized in that it further comprises a generator, which is made with the possibility of mechanical interaction with cargo or loaded by a hoisting rope of a crane, or with the unit, guiding the rope, and with the possibility of conversion of the mechanical energy of movement of the rope or block into electrical energy, the generator output directly or through an additional inverter current or voltage connected to independent power source, which is made in the form of a battery or a capacitor.

3. The device according to claim 2, characterized in that the generator is designed using electromagnetic induction or piezoelectric effect.

4. Method of feeding electronic security Protodyakonov the crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, consisting in the storage of electrical energy in the auxiliary power source, the equipment of this source, at least one sensor and using this electrical energy to power the electronics of the sensor, characterized in that it further carry out the conversion of mechanical and/or hydraulic energy of the measured parameter of the operation of loading crane into electrical energy that is passed in an Autonomous power supply, which the accumulation of electrical energy.

5. The method according to claim 4, characterized in that under this transformation uses the mechanical energy of the measured load, or angle, or move an integral part of the crane or hydraulic energy of the measured pressure in the hydraulic device of the lifting crane.

6. The method according to claim 5, characterized in that the mechanical energy of the measured load includes the use of mechanical energy transmitted through the force, measured in strelba or cargo rope, using Electromechanical the th energy of rotation or movement of component parts of the lifting crane the use of the mechanical energy transmitted to the shaft angle sensor azimuth or transfer mechanism angle of rotation of the cable drum in the gauge length of the boom, and the use of hydraulic energy - use hydraulic energy transmitted from the hydraulic cylinder or hydraulic motor for lifting/lowering the boom, or hauling, or turntable crane in the process of measuring the pressure in the hydraulic device.

7. Apparatus for implementing a power electronic system security load-lifting crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, containing the independent source of power, placed at least in one part of the security system and is connected to the power supply circuit of the electronic circuit of this integral part of the security system, characterized in that it additionally contains at least one Converter mechanical or hydraulic energy of the measured parameter of the operation of loading tap into electrical energy, which is made in the form of electrical generator using electromagnetic inducts and or piezoelectric effect, the output of this electric generator directly or via an additional Converter or voltage output connected to independent power source, which is made in the form of a battery or a capacitor.

8. The device according to claim 7, characterized in that the electric generator has an input shaft or input transmission device that is connected/connected with the shaft or with the motion of the measured rotation angle sensor of the working crane.

9. The device according to claim 8, characterized in that the input shaft or input transmission device of an electric generator connected/connected with the shaft angle sensor azimuth or transfer mechanism angle of rotation of the cable drum in the gauge length of the jib crane.

10. The device according to claim 7, characterized in that the electric generator includes an elastic element and is made with impact on his efforts in the cargo or strelba the hoisting rope of a crane or the efforts transmitted by this rope on the block, guide the rope, and with the possibility of energy conversion move the elastic element into electrical energy.

11. The device according to claim 7, characterized in that the electric generator includes a piston, membrane or bubble hydraulic item is Thor, which is connected to the measurement channel pressure sensor parameter work crane and made with the possibility of conversion of stored hydraulic energy or revisions to this hydraulic energy into electrical energy.

12. Method of feeding electronic security systems crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, consisting in the storage of electrical energy in the auxiliary power source, the equipment this source specified sensor and using this electrical energy to power the electronic circuits, characterized in that it further carry out the conversion of the energy of external mechanical, acoustic or thermal effects lifting of the machine or the environment at the above-mentioned sensor into electrical energy, which pass in an Autonomous power supply, in which the accumulation of electrical energy.

13. The method according to item 12, characterized in that under this transformation uses the mechanical energy of vibration or acoustic noise energy, or heat energy of the engine lifting mash the us or the environment, or mechanical energy linear or angular movements of the sensor.

14. The method according to item 12, characterized in that it further reveals the lack of mechanical energy of vibrations or acoustic energy of the sound of engine lifting machine, then switch the electronic circuit integral part of the security system in a low power mode.

15. Apparatus for implementing a power electronic system security load-lifting crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, containing the independent source of power, placed in the specified sensor and connected to the supply circuit, the electronic circuits, characterized in that it additionally contains at least one receiver mechanical, acoustic or thermal energy impacts hoisting machine or of the environment at the specified sensor, and a receiver connected to the Converter of this energy into electrical energy, the output of which is directly or through an additional inverter current or voltage connected to independent power source, which is made in the form of a battery or a capacitor.

16. The device according to item 15, wherein the receiver is made in the form of inertial mass on an elastic suspension, and the energy Converter made in the form of electromagnetic or piezoelectric transducer energy of this movement of the inertial mass into electrical energy, or the receiver with the energy Converter made in the form of a thermoelectric device.

17. The device according to item 16, wherein the energy Converter includes a comparator, arranged to signal the absence of displacement of the inertial mass and the electronic circuit contains an additional input switch to the power saver mode, which is connected to the output of the specified Comparer.

18. Method of feeding electronic security systems crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, consisting in the storage of electrical energy in the auxiliary power source, the equipment of this source, at least one part of the security and use of specified electrical energy to power the electronics of this part of the security system of the crane, the tives such as those that additionally carry out wireless transmission of electrical energy, at least in one part of the security system using at least one metal element of the construction crane, and this energy is passed into an Autonomous power supply, in which its accumulation.

19. The method according to p, characterized in that for the transfer, use or cargo : rope hoisting crane.

20. Apparatus for implementing a power electronic system security load-lifting crane, consisting of separate parts, made in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, containing the independent source of power, placed at least in one part of the security system and is connected to the power supply circuit of the electronic circuit of this integral part of the security system, characterized in that it further comprises a device for the transmission of electrical energy, at least one metal element of a design lifting crane, made in the form of a transmitter and a receiver AC or DC, which are placed in different parts Gruzovaya the aqueous faucet or in different parts of the security, moreover, the output of the receiver directly or through an additional inverter current or voltage connected to independent power source, which is made in the form of a battery or a capacitor.

21. The device according to claim 20, characterized in that the transmitter and receiver contain transformers, the winding of the transformer of the transmitter is connected to the generator AC voltage winding of the transformer of the receiver is connected to the input of the specified Converter current or voltage, and the magnetic circuits of transformers cover freight or : rope hoisting crane.

22. Method of feeding electronic security systems crane, consisting of separate parts, connected by at least one of wired communication and in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, consisting in the storage of electrical energy in the auxiliary power source, the equipment of this source, at least one part of the security and use of specified electrical energy to power the electronics of this part of the system safety valve, characterized in that it further identify the availability of electrical power is wow voltage on the specified wired and with this voltage, the transfer of electrical energy from this wired into the power circuit of the electronic circuit and an Autonomous power supply, in which the accumulation of electrical energy.

23. Apparatus for implementing a power electronic system security load-lifting crane, consisting of separate parts, connected by at least one of wired communication and in the form of at least one electronic component and at least one sensor, carrying out measurement of at least one parameter of operation of loading crane, containing the independent source of power, placed at least in one part of the security system and is connected to the power supply circuit of the electronic circuit of this integral part of the security system, characterized in that it further comprises a Converter current or voltage, the inlet of which is connected to a wired communication line, and the output is connected with an Autonomous power supply, which is made in the form of a battery or a capacitor.



 

Same patents:

FIELD: materials handling equipment; load-lifting cranes.

SUBSTANCE: invention is designed to automatically control load-lifting crane and protect crane and load from collision with obstacles at preset capacity. According to proposed method, starting and stopping of drives of mechanisms providing movement of crane equipment is done by action onto crane controls, and disconnection of mechanism drives is carried out by processing of signals from pickups to limit motion or preclude over-load. To reduced level of load swinging, wire rope length pickup and tackle block ratio selector pickup are installed additionally whose signals are used to determine height of load hanging and period of swinging of suspended load. Moments to switch off and switch on crane drive mechanisms are calculated by signals from pickups checking position of crane movable equipment, inertia indices of equipment, actual speeds and accelerations of equipment and starting and disconnection of drives. Crane mechanism drives control mode is created at which killing of oscillations of load both at beginning and stopping of load movement is provided. Device contains travel motion control unit, amplified unit, pickups, load limiting unit, travel limiting unit, load hanging height check unit, suspended load swinging period check unit and crane actuators.

EFFECT: improved reliability of crane in operation.

3 cl, 1 dwg

FIELD: materials handling facilities; crane safeguards.

SUBSTANCE: invention relates to overload and damage protection of load-lifting cranes and cranes-pipelayers. Proposed method comes to adjusting at least one signal in at least one load measuring channels and/or reach, and/or luffing angle to provide correspondence of safeguard switch off characteristic to preset load characteristic of crane by adding and/or multiplying results of direct or indirect measurement of at least one of crane operating parameters and signals corresponding to adjustment parameters whose values are stored in non-volatile memory of safeguard. Values of adjustment parameters are determined to provide independent switching off characteristic of safeguard from direction and/or speed of boom movement or speed of movement of crane load gripping members. Different adjustment parameters for different directions and/or speeds of boom and/or load-gripping member can be set.

EFFECT: simplified mounting and servicing of safeguards on crane, improved accuracy of realization of protection functions.

18 cl, 2 dwg

FIELD: mechanical engineering.

SUBSTANCE: proposed system contains parameters recorder of load-lifting machine, computer and portable readout device with non-volatile memory. Parameters recorder includes load-lifting machine parameters transducers, digital calculator and memory connected to digital calculator, load-lifting machine operating parameters transducers being connected to digital calculator. Portable readout device is made in form of video camera or smartphone or cellular telephone with built-in video camera which is furnished with non-volatile memory and is made for connection to digital calculator of load-lifting machine parameters recorder and to computer. Computer is made for reading data of parameters recorder from portable readout device and subsequent processing of data, and for entering into non-volatile memory image of position of mechanisms of load-lifting machine, and/or its working zone, and/or for transmission of data of load-lifting machine parameters recorder into computer along cellular communication circuit.

EFFECT: enlarged functional capabilities of recording of load-lifting machine parameters, facilitated serving of machine, increased reliability and dependability of recording of load-lifting machine parameters.

20 cl, 1 dwg

FIELD: mechanical engineering; load-lifting cranes.

SUBSTANCE: invention relates to overload and damage protection of load-lifting cranes. According to proposed method, to prevent emergencies preliminarily determined are tolerable values of parameters characterizing load, and/or spatial position of crane boom and/or load gripping member which are memorized and, in process of operation of crane, one of said parameters is measured and compared with tolerable value, and signals are formed to control crane actuators aimed at preventing excess of tolerable value by measured parameter. Determination of parameters characterizing spatial position of boom, load-gripping member, supports, construction members of other crane or any obstacle in height is based on measuring values of barometric pressure in corresponding points and subsequent calculation of heights. Construction is simplifier, and effective protection of spatial position pickups of crane from mechanical damages if provided. Safety of load-lifting crane in operation is improved owing to accurate and effective measuring of distance between crane and obstacles and prevention of emergencies caused by tilting of fixed platform or portal of crane from horizontal position and in case of approaching thunderstorm.

EFFECT: improved safety of load-lifting crane.

25 cl, 1 dwg

FIELD: materials loading machinery.

SUBSTANCE: invention relates to load-lifting crane protection and control devices and to method of crane control after interlocking of crane motion by protection system. proposed method consists n determining tolerable values of parameters characterizing load and/or spatial position of crane boom-or load-gripping member, and/or distance to transmission line, recording the parameters and measuring in process of operation of load-lifting crane by direct or indirect method of at least of one of said parameters and comparing measured value with tolerable one and subsequent forming of control signals by at least one of operating devices of load-lifting crane designed to preclude excess of tolerable value by said parameter. Additionally, by analyzing values and/or changes of parameters of operation of load-lifting crane, prehistory of operation of load-lifting crane is revealed and recorded which leads to forming of said control signals aimed at precluding excess of tolerable value by said parameter, and order of formation of control signals after prevention of said excess is set depending on indicated prehistory.

EFFECT: improved safety of operation of load-lifting crane and provision of convenience in operation.

16 cl, 1 dwg

FIELD: overload protection, controlling and regulation systems for hoisting cranes.

SUBSTANCE: method involves preliminarily determining and memorizing allowable loading values and diagnostic parameter values characterizing technical state of crane hydraulic system; during operation of crane, measuring and comparing loading and diagnostic parameter current values with allowable values; generating warning signal or blocking crane operation; additionally determining rotational velocity of pump shaft or power unit shaft of crane and velocity of crane lever or load-handling device and/or rotary platform of crane; determining current value of diagnostic parameter, with values of these velocities being taken into consideration. System for effectuating said method has digital calculator based on microcontroller, actuating device and operating parameters sensors for hoisting crane and its hydraulic system. Method and system provide for full, reliable and operative diagnosis of hydraulic system enabled owing to controlling of said system during operation of hoisting crane in dynamic modes under loading.

EFFECT: reduced consumption of power for accomplishment of hoisting operations by preventing crane from operation at low efficiency of hydraulic drive.

13 cl, 1 dwg

FIELD: mechanical engineering; load-lifting equipment.

SUBSTANCE: invention relates to overload and damage protection device of load-lifting cranes and pipelayer cranes. Proposed method comes to adjusting at least one signal in load measuring channels and/or reach, and /or angle of boom tilting by adding and/or multiplying said signal with at least one signal corresponding to at least one adjusting parameter whose value is preliminarily determined and kept in nonvolatile memory of safeguard. Signal is adjusted at no load-gripping member of load-lifting crane at zero value of mass of lifted load or load moment in lifting crane load limiting channel. For this purpose value of at least one of said adjusting parameters is determined at no load on load-gripping member of load-lifting crane.

EFFECT: improved accuracy of safeguard and efficiency of protection of load-lifting crane.

10 cl, 1 dwg

FIELD: mechanical engineering; materials handling facilities.

SUBSTANCE: invention relates to controls of load-lifting mechanisms. Proposed device for measuring tension force of load-lifting mechanism contains base and force take-up mechanism with force sensor connected to mechanism. Force take-up mechanism is made in form of multiple-link mechanism including two inclined rods connected to base, articulated two-link mechanism connecting free ends of inclined rods and central link forming maximum deflection of articulated two-link mechanism. One end of central link is connected to middle joint of two-link mechanism, second end is coupled with base through mechanism shifting end of central link relative to base, and force sensor is built into central link.

EFFECT: simplified servicing of load-lifting mechanisms.

4 cl, 4 dwg

FIELD: mechanical engineering; materials handling facilities.

SUBSTANCE: invention can be used in safeguards of boom lifting cranes. Proposed method provides for preliminary determination and storing of maximum tolerable value of load moment and determination on current value of moment by two methods in process of crane operation. Each method includes measuring working parameters of crane characterizing current load and current radius with subsequent calculation of current value of load moment. To generate warning signal or crane control signal, memorized maximum tolerable value of load moment is compared either with one of pre-calculated current values of load moment, or with maximum calculated value of two values. Current values of load moment obtained by first and second methods are compared additionally and if they differ crane control signal of formed.

EFFECT: provision of overload protection of load-lifting crane of any type, prevention of crane downtimes caused by frequent failures pf safety system.

16 cl, 1 dwg

FIELD: mechanical engineering; load lifting.

SUBSTANCE: invention is designed for use in crane systems to prevent collision of load-lifting cranes with obstacles. Method provides change of spatial position of crane boom or load-gripping member, measuring of at least one coordinate of said positions, memorizing value of coordinate by first command of crane operator and forming working zone of crane with use of memorized value of said coordinate. After first command of crane operator when changing spatial position of boom or load grip-ping member of crane, values of said coordinate are memorized additionally through preset lapses of time or after change of said coordinate through preset value. Process of memorizing is stopped by second command from crane operator. Forming of working zone of crane is effected by calculating borders of zone with use of memorized values of coordinate. At calculations, closure of trajectory of displacement of boom or load-gripping member along at least one said coordinate is revealed. If trajectory closure is presents, working zone of crane is formed within the limits of changes of memorized values of coordinate. At no closure, working zone is formed as sector with center in axis of crane rotation and arc, in common case, curvilinear, whose coordinates do not exceed its maximum memorized values.

EFFECT: possibility of setting working zone of any form by crane operator, including three-dimensional one, taking into account sizes and type of hoisted load and near transmission lines, simplified work of crane operator and design of coordinate protection system.

16 cl, 4 dwg

FIELD: materials handling facilities; crane safeguards.

SUBSTANCE: invention relates to overload and damage protection of load-lifting cranes and cranes-pipelayers. Proposed method comes to adjusting at least one signal in at least one load measuring channels and/or reach, and/or luffing angle to provide correspondence of safeguard switch off characteristic to preset load characteristic of crane by adding and/or multiplying results of direct or indirect measurement of at least one of crane operating parameters and signals corresponding to adjustment parameters whose values are stored in non-volatile memory of safeguard. Values of adjustment parameters are determined to provide independent switching off characteristic of safeguard from direction and/or speed of boom movement or speed of movement of crane load gripping members. Different adjustment parameters for different directions and/or speeds of boom and/or load-gripping member can be set.

EFFECT: simplified mounting and servicing of safeguards on crane, improved accuracy of realization of protection functions.

18 cl, 2 dwg

FIELD: mechanical engineering; load-lifting equipment.

SUBSTANCE: invention relates to overload and damage protection device of load-lifting cranes and pipelayer cranes. Proposed method comes to adjusting at least one signal in load measuring channels and/or reach, and /or angle of boom tilting by adding and/or multiplying said signal with at least one signal corresponding to at least one adjusting parameter whose value is preliminarily determined and kept in nonvolatile memory of safeguard. Signal is adjusted at no load-gripping member of load-lifting crane at zero value of mass of lifted load or load moment in lifting crane load limiting channel. For this purpose value of at least one of said adjusting parameters is determined at no load on load-gripping member of load-lifting crane.

EFFECT: improved accuracy of safeguard and efficiency of protection of load-lifting crane.

10 cl, 1 dwg

FIELD: materials handling facilities.

SUBSTANCE: group of inventions relates to devices for checking condition of safeguards of load-lifting machines and reading parameters of built-in parameters recorders. Proposed method comes to revealing output signals of separate components of safeguard and transmitting signals to control device, processing signals and their recording in control device according to prestored signals determining sequence of processing and recording and forming, by control device, in case of necessity, replacement test signals in compliance with prestored signals determining sequence of forming of replacement test signals and transmitting the latter to separate components of safeguard. Revealing of output signals and forming of replacement test signals is done by receiving and transmitting sequential digital signals by multiplexed communication line at asynchronous or synchronous modes by algorithms specified by sequential protocols. Proposed device to control safeguard of load-lifting machine contains control unit, data input-output module and memory module. Data input-output module is made in form of transceivers of multiplexed communication line CAN, LIN, RS-232, USB or IrDA of interface. Group of invention provides both control of safety of safeguard and reading of data of built-in parameters recorder making it possible to reveal troubles of connecting bundles, control and diagnosing of condition of safeguard directly on load-lifting crane, improve safety of crane at partial failures of safeguard owing to automatic or manual program disconnection and subsequent replacement of any defective functional unit of safeguard without its physical disconnection and without complete disconnection of partially failing safeguard.

EFFECT: improved control of safeguard.

12 cl, 1 dwg

FIELD: materials handling equipment.

SUBSTANCE: invention relates to methods of protection of boom load-lifting cranes and pipelayer cranes from overloads and damage. Adjustment is carried out by lifting calibrated load of preset mass in points of load characteristic with known parameters of boom equipment and regulating signals in load, reach and/or boom tilt angle measuring channels to provide correspondence of safeguard characteristic to preset load characteristic of crane. In process of regulation of signals in load, reach and/or boom tilt angle measuring channels, values of output signals of corresponding sensors are kept constant and regulation is done by adding and/or multiplying output signals from sensors and signals corresponding to adjusting parameters. Values of the latter are preliminarily determined and kept in nonvolatile memory of safeguard.

EFFECT: reduced labor input in adjustment of safeguard on load-lifting crane, provision of interchangeability of all components, possibility of adjustment of device on any type of load-lifting crane with unspecified mounting of load sensor.

6 cl, 2 dwg

FIELD: materials handling equipment; load-lifting cranes.

SUBSTANCE: invention is designed to automatically control load-lifting crane and protect crane and load from collision with obstacles at preset capacity. According to proposed method, starting and stopping of drives of mechanisms providing movement of crane equipment is done by action onto crane controls, and disconnection of mechanism drives is carried out by processing of signals from pickups to limit motion or preclude over-load. To reduced level of load swinging, wire rope length pickup and tackle block ratio selector pickup are installed additionally whose signals are used to determine height of load hanging and period of swinging of suspended load. Moments to switch off and switch on crane drive mechanisms are calculated by signals from pickups checking position of crane movable equipment, inertia indices of equipment, actual speeds and accelerations of equipment and starting and disconnection of drives. Crane mechanism drives control mode is created at which killing of oscillations of load both at beginning and stopping of load movement is provided. Device contains travel motion control unit, amplified unit, pickups, load limiting unit, travel limiting unit, load hanging height check unit, suspended load swinging period check unit and crane actuators.

EFFECT: improved reliability of crane in operation.

3 cl, 1 dwg

FIELD: mechanical engineering.

SUBSTANCE: both versions of proposed method provide direct or indirect measurements of parameters characterizing load and/or spatial position of boom, primary processing of results of measurements, if required, and entering the results in memory with provision of possibility of read out. Measured additionally are level or amount of fuel in fuel tank of lifting machine engine, or rate of fuel consumption of load-lifting machine engine with entering of results of measurement in memory and additional processing of results on load lifting machine or in computer after reading out from memory. According to first version, excessive consumption of fuel and/or requirement of preventive or repair works of load-lifting machine is revealed by calculating ratio of fuel consumption at present period of operation of load-lifting machine to total mass of lifted and transported loads at this period of time and comparing this ratio with present values or comparing consumption of fuel when carrying out typical load-lifting and transporting cycles and revealing increase in said consumption in any cycle relative to consumption at previous cycle. According to second version, reduction of level of fuel or its amount to minimum tolerable value is revealed sufficient for carrying out load-lifting and transporting cycle of maximum possible duration, and warning signal is formed in this case. Parameter recorder of load-lifting machine contains load and/or spatial position of boom equipment pickup, engine fuel tank fuel level or fuel amount pickup of load-lifting machine and fuel flow rate pickup of load-lifting machine, calculator on base of microcontroller, memory and indicator.

EFFECT: improved safety of load-lifting machine in operation owing to monitoring presence of fuel in fuel tank.

10 cl, 1 dwg

FIELD: mechanical engineering.

SUBSTANCE: proposed system contains parameters recorder of load-lifting machine, computer and portable readout device with non-volatile memory. Parameters recorder includes load-lifting machine parameters transducers, digital calculator and memory connected to digital calculator, load-lifting machine operating parameters transducers being connected to digital calculator. Portable readout device is made in form of video camera or smartphone or cellular telephone with built-in video camera which is furnished with non-volatile memory and is made for connection to digital calculator of load-lifting machine parameters recorder and to computer. Computer is made for reading data of parameters recorder from portable readout device and subsequent processing of data, and for entering into non-volatile memory image of position of mechanisms of load-lifting machine, and/or its working zone, and/or for transmission of data of load-lifting machine parameters recorder into computer along cellular communication circuit.

EFFECT: enlarged functional capabilities of recording of load-lifting machine parameters, facilitated serving of machine, increased reliability and dependability of recording of load-lifting machine parameters.

20 cl, 1 dwg

FIELD: mechanical engineering; load-lifting cranes.

SUBSTANCE: invention relates to overload and damage protection of load-lifting cranes. According to proposed method, to prevent emergencies preliminarily determined are tolerable values of parameters characterizing load, and/or spatial position of crane boom and/or load gripping member which are memorized and, in process of operation of crane, one of said parameters is measured and compared with tolerable value, and signals are formed to control crane actuators aimed at preventing excess of tolerable value by measured parameter. Determination of parameters characterizing spatial position of boom, load-gripping member, supports, construction members of other crane or any obstacle in height is based on measuring values of barometric pressure in corresponding points and subsequent calculation of heights. Construction is simplifier, and effective protection of spatial position pickups of crane from mechanical damages if provided. Safety of load-lifting crane in operation is improved owing to accurate and effective measuring of distance between crane and obstacles and prevention of emergencies caused by tilting of fixed platform or portal of crane from horizontal position and in case of approaching thunderstorm.

EFFECT: improved safety of load-lifting crane.

25 cl, 1 dwg

FIELD: materials loading machinery.

SUBSTANCE: invention relates to load-lifting crane protection and control devices and to method of crane control after interlocking of crane motion by protection system. proposed method consists n determining tolerable values of parameters characterizing load and/or spatial position of crane boom-or load-gripping member, and/or distance to transmission line, recording the parameters and measuring in process of operation of load-lifting crane by direct or indirect method of at least of one of said parameters and comparing measured value with tolerable one and subsequent forming of control signals by at least one of operating devices of load-lifting crane designed to preclude excess of tolerable value by said parameter. Additionally, by analyzing values and/or changes of parameters of operation of load-lifting crane, prehistory of operation of load-lifting crane is revealed and recorded which leads to forming of said control signals aimed at precluding excess of tolerable value by said parameter, and order of formation of control signals after prevention of said excess is set depending on indicated prehistory.

EFFECT: improved safety of operation of load-lifting crane and provision of convenience in operation.

16 cl, 1 dwg

FIELD: overload protection, controlling and regulation systems for hoisting cranes.

SUBSTANCE: method involves preliminarily determining and memorizing allowable loading values and diagnostic parameter values characterizing technical state of crane hydraulic system; during operation of crane, measuring and comparing loading and diagnostic parameter current values with allowable values; generating warning signal or blocking crane operation; additionally determining rotational velocity of pump shaft or power unit shaft of crane and velocity of crane lever or load-handling device and/or rotary platform of crane; determining current value of diagnostic parameter, with values of these velocities being taken into consideration. System for effectuating said method has digital calculator based on microcontroller, actuating device and operating parameters sensors for hoisting crane and its hydraulic system. Method and system provide for full, reliable and operative diagnosis of hydraulic system enabled owing to controlling of said system during operation of hoisting crane in dynamic modes under loading.

EFFECT: reduced consumption of power for accomplishment of hoisting operations by preventing crane from operation at low efficiency of hydraulic drive.

13 cl, 1 dwg

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