Device for surface treatment

 

(57) Abstract:

Device for surface treatment contains the frame of the machine supporting driven by a motor head Assembly for surface treatment, the means for selectively changing the pressure head Assembly on said surface between at least a first value and a second value, different from the first value, means to selectively change the speed at which the head Assembly is driven by the engine, between at least a first speed and a second speed different from the first speed, and includes the electoral lot of the gears having a gear ratio, based on the required business operations, and management tool installed to limit the work on the first speed when the device with the first pressure value and to limit the operation to the second speed when the device is in the second pressure value, which provides the possibility to use the same device for a wide range of processing operations floor. 32 C. p. F.-ly, 9 Il.

The invention relates to a device for surface treatment, is dimetane or other clean surface.

In regard to a device for surface treatment should be borne in mind that the present invention relates to a device for improving the appearance of the surface, for example by polishing or cleaning. Examples of devices for surface treatment include a treatment or sweepers, in particular, intended for use when cleaning or sweeping floors commercial/industrial large areas such as floors supermarkets or end points of the transport network, where there is a crowd of people. Such machines can be made with the so-called Hiking, running, namely, that the management carries out Hiking the operator, which controls the movement of the machine on a floor surface, or, alternatively, these known machines can be a so-called carrying machine that will take the operator during the cleaning process.

In addition, such known machines traditionally contain nodes of head for surface treatment, which includes rotary brush heads which are shifted to bring them into contact with the surface being cleaned under a certain pressure, which may depend on the characteristic and patent 95182309, 2283905 and 2290021 And, the contents of which are introduced here by reference.

These known devices have advantages in comparison with the previous systems, which consists in the fact that the pressure under which the brushes are shifted to the cleaned surface, it is possible to accurately control and change in a relatively wide range, in particular the end of the range, where the pressure is less relevant.

However, these known devices still somewhat narrows goals, which can be used the device, because the device is limited only by clearing the surface, and therefore, if necessary, perform additional operations on cleaning of the surface, on the surface, already subjected to a cleaning operation, and on a completely different surface, it is necessary to use separate machines for processing of a surface designated for that particular surface.

In the present invention an attempt is made to create a device for surface treatment, which is not peculiar to the above limitations or other defects in the known technical solutions.

According to nastawienie engine head Assembly for surface treatment, means for selectively changing the pressure head Assembly to the surface, and means to selectively change the speed at which the said head Assembly is driven by the engine.

When the management software selectively variable speed head Assembly in addition to managing selectively variable pressure device according to the invention is particularly preferable because it can be used for various operations of cleaning the surface, which may include cleaning the hard brushes and polishing. When cleaning the floor hard brushes traditionally required to head for surface treatment, i.e. treatment of the head, worked under relatively high pressure and relatively low speed, while polishing the floor traditionally requires that the head holder surface, worked with relatively high speeds, but at low pressures.

Preferably, the head Assembly for surface treatment has been adapted for providing removable attachment of very diverse elements for surface treatment, such as a hard brush, which is but installed on the device for polishing the floor.

Therefore, it can be estimated that the same device may preferably be used for a wide range of processing operations floor.

Thus, the head Assembly for surface treatment adapted for providing removable attachment of a large number of elements for surface treatment, each of which has different characteristics with respect to the processing surface.

Preferably, the means for selectively changing the pressure head for surface treatment, was intended to pressure changes in response to the use of heads for surface treatment having different performance characteristics.

Furthermore, the said means to selectively change the speed at which the head Assembly is driven by the engine, is designed so that the speed can be changed in response to the use of heads for surface treatment having different performance characteristics.

From the specified clearly, for example, such different characteristics may include characteristics that demonstrate cleanup tool surface, such as a hard brush, and the characteristics of the ow.

Preferably, the device includes an actuator containing a spring means installed in such a way that it acted as a suspension, comprising means for displacement of the head node for processing the surface of the workpiece surface, the means of tension to the tension of the spring means to establish a pressure head Assembly for surface treatment, while the spring means is a selectively adjustable in a continuous range wire tie tool, which serves to ensure the desired offset to the surface.

In addition, the device preferably may include bias means acting between the frame and head Assembly for surface treatment to provide a selective displacement of the head Assembly to the processed surface, installed in such a way as to act as a means of suspension between the frame and head Assembly for surface treatment, a means for monitoring and/or measuring the supplied operating pressure, means for indicating readings of the operating pressure, means for entering operator desired working pressure is measured by pressure, and to generate a control signal in response to the difference between the desired pressure and the measured pressure and the means for supplying the control signal to the means for application of pressure.

Preferably, the means for selectively changing the pressure applied to the surface of the head Assembly, contained a bias means acting between the frame and head Assembly includes an actuator having a first element and a second element extending from it, and an actuator also preferably can operate manually, hydraulically or electrically.

Bias means preferably may include a spring means, which may optionally include at least one spring device acting between a part of the actuator and the head node for surface treatment.

In particular, the spring device may contain a sleeve attached to the side of the actuator, the stem, the inner end of which is slidable within the sleeve, the rod projects from the sleeve to the head Assembly for surface treatment, and a spring located inside the liner, in spolniteljnyj mechanism for lifting and lowering the head node for surface treatment, mounted between the frame and head Assembly, and means operatively connected to the head Assembly and is designed to at least partially counteract the force exerted on the head node for processing the surface of the actuator, when lowering the head Assembly and to control the pressure applied to the surface of the head Assembly, in the range from zero pressure to a pressure corresponding to the weight of the head Assembly for surface treatment.

Preferably, the means for counteracting the force exerted on the head Assembly actuator, contained a balancing tool and, furthermore, the said means preferably may include elastic tool.

In particular, the elastic means may be in the form of at least two movable relative to each other elements, which are designed for elastic relative movement.

Preferably, the elastic means can be a device consisting of a cylinder and piston, which preferably may be in the form of a gas strut.

In addition, the elastic means predpochtite what I selective pressure change, provide a head Assembly for surface treatment may include an elongated balance beam can be rotated connected to the frame and one end is connected with the actuating mechanism to move together with it, while at its other end has fixed thereto a counterweight.

In particular, the counterweight may have a mass that must be actually equivalent to the weight of the head Assembly for surface treatment.

The balancing device is particularly preferably while providing a precisely controlled pressure, and at the other end of the possible range of pressure, where low values.

Mentioned means serves to counteract the force exerted on the surface by the Executive member and the head mechanism for surface treatment preferably facilitates the accurate determination of the actual pressure that must be applied to the treated surface, especially between zero and the weight of the head Assembly for surface treatment. This is particularly useful in the present invention because it increases the variety of cleaning methods that may be acceptable in the case Ust variable pressure additionally contained a lever transmission, connecting the frame and head Assembly for surface treatment so that the head Assembly was kept virtually horizontally. In particular, the above-mentioned linkage can be made in the form of a parallelogram.

The device also preferably includes a means for determining operating characteristics of the head means, intended for surface treatment, for example those that relate to the status of the head of the tool or the actual pressure applied to the surface, so that said data was used in the subsequent management device.

Preferably, the said device additionally includes means for monitoring and/or measuring the pressure applied, the induction tool, allowing the operator to select the desired pressure, a comparator for comparing the calculated pressure to the desired pressure and to generate a control signal in response to the results of the comparison, and means for supplying a control signal to control the means of application of pressure.

Preferably, the feedback provided by the management tool, was designed to generate a signal driven by the tion is intended to compare the measured pressure with the desired pressure.

Preferably, comparator means contained electronic processor and, in addition to showing the tool could be designed for digital indication of the magnitude of the pressure applied.

The measuring pressure can be a strain gauge, pressure transducer or a piezoelectric sensor. In addition, the device may contain an analog-to-digital converting means for converting input signals characterizing respectively the measured pressure of the working head and the selected operator pressure, a storage device for determining operating parameters of the system and the computing means is programmed to compare two input signals and for creating a control signal in response to the comparison and on pre-established performance parameters.

Hence from the above-mentioned distinguishing features can be understood that the means for selectively changing the pressure head Assembly to the surface, is designed to accurately determine the pressure applied, in particular in the lower end of the possible range of values of pressure, so that in combination with selectively variable RMSE is entrusted with a wide variety of operations on the surface.

The means to selectively change the speed at which the head Assembly is driven by a motor, preferably contains choosing a large number of gears having a gear ratio, defined on the basis of the required operations.

Preferably, selectively switchable gearing housed in the box changes gears between the motor and head Assembly for surface treatment.

Gearing preferably contains a matching pair of gears being in constant mesh, and means for selecting one of these pairs to ensure vertical drive of said transmission.

Preferably, the means for selecting one of the pairs contained a clutch, which preferably may be made in the form of clutch. This Cam clutch may be particularly preferred when the box changes gears are two pairs of gears.

The management tool is designed for efficient movement of the clutch, and this management tool may contain actuated by a solenoid actuator, comer driven by solenoid locking means.

Means for switching control of the gearbox is preferably interconnected with the means for selecting the pressure applied by the head Assembly for surface treatment, so that the shift was performed in response to selection of private pressures above or below one or more thresholds, or the choice of specific values, or, alternatively, the control device may be such that the choice of any particular value of pressure or range of pressures is a result of the reaction to shift the transmission.

Thus it can be estimated that the means for selectively changing the pressure head Assembly may be actuated in response to selection of the speed with which the head Assembly can be set in motion by the engine, or Vice versa, the speed with which the head Assembly must be set in motion by the motor varies in response to the selection of private pressure or pressure range in which to work the head Assembly.

With regard to specific is the distinctive characteristic of the present invention lies in the fact that the device is intended to perform as scraping and polerowanie shall be easily achieved at low pressures impact head element on the surface and on the contrary, lower operating speeds can be achieved at elevated pressures. It is particularly preferable for the above-mentioned processes for surface treatment, because the hard surface cleaning brushes is usually performed under high pressure, comprising, for example, 200 pounds (90,72 kg), and low speed, such as 200 rpm, while polishing is usually performed under reduced pressure, for example about 30 pounds (13.6 kg), and higher speed, for example 1000 rpm

To ensure that when those specific values described above, the gear train preferably includes a first pair of gears with a gear ratio of 1:1 and the second pair of gears with a gear ratio of 5: 1, therefore, can be easily provided with the above velocity.

It is preferable that were created controls that prevent changes in the transmission mechanism, when the motor drives the head Assembly for surface treatment.

In addition, the control preferably sets an upper limit of pressure that can be created by site head for surface treatment, as only selected peredatochnaya management which prevent performance associated with the use of one or more specific elements of the surface treatment. For example, can be created valve means to prevent the supply of water to the head node for surface treatment, when the selected device to perform a polishing operation.

Therefore, it is clear that in the present invention preferably created a combined machine for cleaning hard brushes polishing the floor.

The invention is described only by means of example with reference to the accompanying drawings, in which:

In Fig.1 shows a front view of the height in the cross section of the brush unit of the machine for cleaning, sweeping/polishing surface;

in Fig.2 presents a perspective view of the machine to work with brush node according to Fig.1;

in Fig.3 shows a diagram of the control device according to Fig.1 and 2;

in Fig.4 shows a side view of a node according to Fig.1 to provide pressure brush/pillows, which shows the control system in accordance with one embodiment of the design of the present invention;

in Fig.5 shows a side view of a node according to Fig.1 with what rutenium;

in Fig.6 presents a side view of a site for creating pressure brushes made according to another variant of construction of the invention;

in Fig. 7 presents a side view of the node for creating pressure brushes according to another variant of the design of the present invention;

in Fig.8 shows the circuit schematic illustrating another variant of the design of controls according to the present invention;

in Fig.9 shows a view in cross section selectively acting gear to use when selecting the speed at which drive the working head according to the present invention.

According Fig. 1 brush node contains two pipes 1, which includes spring 2. The right-hand pipe 1 in Fig.1 is provided with a cutout to show the spring 2. Each spring is attached at one end to the upper end of the pipe in the place indicated by the position 3, and the other end to the rod 4, which slides through the hole 5 in the corresponding pipe 1. The rods 4 are connected to each other by means of a bolt 6 and node 7 is rigidly attached to the base plate 8 connected to the brush head or head 27. The brush head 27 can be detached cu is clever.

By means of a plate 9, which gives stability, prevents rotation or misalignment of the pipe 1. The wall cleaning machine attached to the actuator 10. The actuator 10 drives a shaft 12, which in Fig. 1 shows in actually pushed position. The rod 12 of the actuator by the finger 13 is rigidly attached to the plate 14, which is pressed against both pipes 1 with the springs by means of the clamping bolts 15. Thus, when the actuator causes the rod 12 to move in the lower direction of the pipe 1 with the springs are moved down and the spring 2 is compressed, causing the impact on the node with brush heads higher pressure, at the same time providing a suspension in order to achieve adaptation to uneven floors and wear of the brushes. Normally, the effective length of the spring in an uncompressed state are of the order of 15 " /38,1 cm/, and this is especially appropriate in the case of a system provide pressure brushes size 26-32 inches (66,04-to 81.28 cm). Such a device can provide a pressure range from 0 to 450 pounds /0-204,12 kg/ loaded cleaning machine, Hiking managed by the operator is installed on the device according to the invention, compared with the maximum pressure p to be used and other types of bias means. Working on the torsion spring has the advantage consisting in the fact that it is in cleaning the car less space vertically. In addition, working torsion spring usually has a low rigidity, which is particularly acceptable for this purpose. Can also be used with gas struts or hydraulic or pneumatic system.

In addition, the pressure can be adjusted by replacing the springs in the spring with other lengths or other efforts, this can be changed clamping pipes with springs. However, such a replacement springs must be performed by a specialist engaged in the maintenance of the machine.

The system has a high degree of regulation, since the actuator can be stopped anywhere along its course.

Usually the plate 8 to hold the brushes are fixed to a pair of round or elliptical brushes rotating in a plane, generally parallel to the floor /or purified particles or describeme surface/. However, in some treatment machines used up to four brushes, the device according to the invention can be used to control all four brushes together and how variations is. the absolute cylindrical brush head can be equally easy to manage when it is installed on the support plate 8 or, alternatively, at each end of its shaft by means of respective individual nodes according to Fig.1.

Strain calibration beam 20, which can be used for measuring the pressure of the brushes, is located under the plate 18 for fixing the pipe with springs.

In Fig. 2 brush the node according to Fig.1 shown installed in a clearing device, Hiking managed by the operator. Similar parts are denoted by the same positional rooms, and a pair of tubes 1 with springs attached to the drive shaft 12 through the plate 14. The actuator 10 is rigidly attached to the frame 16 of the device by means of the coupling beams 15. Second, the hinge connects the node 7 and the support plate 8 brushes with the frame 16. Themselves of the brush of Fig. 2 is not shown, but mounted under the support plate 8 behind a protective flange 17 and are driven by the engine 18 stiff brush (one of which is shown in Fig.2).

In Fig.2 also shows the relative position of the water tank or reservoir 19, pack of 20 batteries for actuation of the motors 18 hard brushes commentcontroller arm 21. Rubber scraper 22 is provided with a pump that provides vacuum motor 23.

In addition, the control panel 24 by the pressure of the brush head is in the field of view of the operator.

In Fig.3 schematically presents a side view of the brush unit, and the control system is presented in the form of a flowchart.

Position the brush head 27 relative to the cleaned floor is controlled by an electric or hydraulic actuator 10, raising or lowering the brush head by means of the rod that holds the spring in the tube 1. To compress the brush head to the floor can be used and other elastic means, such as gas struts, and certainly can be used other means to control the position of the brush head, for example hydraulic or pneumatic means. Details of the actuator 10 described above.

The pressure sensor is located in one of the positions indicated by the position 4, although it may be located anywhere in the cylinder, in the shoulder or in the lower part of the actuator. When using this sensor monitors the pressure exerted to the floor, and which is shown in Fig.1, a piezoelectric sensor or a position sensor. As an option for measuring pressure as working on the shift sensor can be used for mounting the finger (11 in Fig.1) that connects the node to the frame of the device. The amplifier 26 converts this signal 25 pressure value used in the following outline.

The control panel 24 is located within sight of the operator. It has a handle 28 of selection pressure, whereby the operator can pre-select a specific pressure. Rocker switch 29 enables you to raise or lower the brush head 27 relative to the floor depending on the position of this switch. The device 30 to the digital display shows the pressure of the brush head 27 on the floor, measured by the pressure sensor.

The CPU 31 compares the measured pressure signal from the pressure selected by the operator, and generates the control signal in accordance with the control which is necessary actuating mechanism to ensure that the measured pressure has actually become the same as the selected pressure.

Such a processor may have a simple construction, for example, it may contain an electronic comparator circuit gain, or mnnich elements is supplied by the battery, located on the machine, or, alternatively, from a battery source of low energy.

In Fig.4 shows a brush head with planetary brushes intended for Sobrevivencia, cleaning, polishing or sweeping the floor, fastened by means of the actuator 10 /showing only one shoulder/ to the frame of the machine, but rather to support the console 30 of the actuator.

The brush head is raised and lowered as shown by arrow 31 by a screw Jack mounted on the actuator 10.

Engines designed to bring the brushes in motion, set on the brush head, but in Fig.3 is not shown. Water tanks of the machine, mounted on its frame or chassis of Fig.3 is also not presented in order to more clearly show other parts of the device.

Balancing beam 32 by means of pivot bearing 33 is fixed to one end of the hinged support link 34, the other end of which is connected to the frame. Beam 32 is also connected to the shoulder 1 of the actuator, and on the other side of the pivot bearing 33 to the counterweight 35 corresponding to the weight of the brush head. The opposite end of the beam 35 is associated with Waves in the case of brushes of different lengths, for example, in order to prevent racing of the brushes on the floor.

Between balancing beam 32 and the pivot support link 34 is connected to the potentiometer 37', is used to measure the wear of the brushes.

Additional support for the brush head is provided with a lever system 38 in the form of a parallelogram between the brush head and the side of the main frame for maintaining the position of the roof part of the brushes.

Shows the drive wheel 39 of the machine; usually in each corner of the chassis or frame is one such wheel.

The path of movement of the counterweight indicated dotted leader line, that is the bottom line, when the brush is raised, and the upper line when the brush down. When the brushes are lowered to the floor by means of the actuator 10, the balancing beam 32 is rotated around the pivot bearing 33 and the counterweight 35 makes rocking movement upwards. Changing the position of the balance beam 32 causes a corresponding change in the position of the arm 31' and, consequently, changes the measured resistance. Load cell /not shown/ determines the position at which the brushes touch the floor, there is registered a positive pressure and both the deposits in this position. After that, the actuator continues to bring the brush head downwards towards the floor, until you reach the desired pressure on the floor.

The counterweight balances the weight of the brush head and provides a very small range of selected pressures brushes, significantly lower than previously achieved, for example up to 11 pounds /5 kg/. This range is used to ensure easy cleaning or polishing, or cleaning fragile or special floor surfaces.

Comparison of the readings of the potentiometer when the contact of the brush with the floor is a measurement of the amount of wear of the brushes, which can be used for a display panel, display device, console, intended for the operator.

This example of course is only one of many possible embodiments of the construction according to the invention. Qualified specialists in this field will easily understand that this system is applicable to cleaning, sweeping, polishing and describelayer machines are very diverse types and can be used on machines where you want to put pressure not only in the lower direction, but also in the upper side and healthy lifestyles the experts in this industry, but do not constitute an inventive activity. According to the present invention preferably can be provided in a wide range of pressures.

If we now turn to Fig.5, 6 and 7, where the distinctive characteristics corresponding to the distinctive characteristics of Fig.4, have the same item numbers, it shows the balance beam 32, attached through a pivot bearing 33 to one end of the supporting hinge connection 34, the other end of which is connected to the frame. Beam 32 is also connected to the shoulder 1 of the actuator, and on the other side of the pivot bearing 33 to the balancing means in the form of gas struts 35, 37, to balance the weight of the brush head. The opposite end of the beam 32 is connected with the brush head by means of the clamping lever knob 36, which is used to adjust the contrast of the brushes having a different length, for example to prevent surges brushes on the floor.

The potentiometer 37 for measuring the wear of the brushes is connected between the balancing beam 32 and the hinge pivot connection 34.

Additional support for the brush head is provided by means of a parallelogram linkage system 38 between the brush head and 9 for movement of the machine; usually in each corner of the chassis or frame is one such wheel.

The path of movement of the counterweight is indicated by the arrow A, and the bottom line when lifting the brushes and the top line when lowering. When by means of the actuator 10 is sinking brushes to the floor, balance beam 32 is rotated around the pivot bearing 33 by compressing the gas struts 35, 37. The brush head 8 is lowered to the floor due to the extension of the actuator 1. However, when the brush head 8 is coming to the floor, the pressure of the brush head 8 on the floor, preferably balanced gas counter 35, 37. Such a balancing act is achieved through compression of gas struts 35, 37, which, having a sealed volume within the chamber 35, limits the degree of sliding of the piston element 37 in the chamber 35, preferably elastic way. When this relative movement of the piston element 37 and chamber 35 preferably provides the impact of just a certain pressure on the brush head 8, as restrictive, and therefore a balancing act gas struts 35, 37 serves to effectively reduce the pressure exerted and the enforcement mechanism 1 on the brush head 8, stops, that is, the actuator 1 is given to raise the brush head 8, the pressure inside the chamber 35 is discharged and the gas strut 35, 37 expands, the volume of fluid introduced into the chamber 35, is chosen so that the expanded gas strut 35, 37 could easily hold the brush head 8 in such elevated position.

It can be estimated that under the action of the counterbalancing force of the gas strut 35, 37 provides support for the weight of the brush head 8, and allows you to precisely control the actual force exerted on the floor by the Executive mechanism 1 through the brush head 8, in particular in the range from zero pressure to a pressure corresponding to the weight of the brush head 8.

In Fig.6 presents a side view of another variant of implementation of the design according to the invention, in which the distinctive features common to that shown in Fig.5 denoted by the same number of items.

The counterweight shown in Fig.6, is similar to the counterweight shown in Fig.5 so that when the brush head 8 is lowered to the floor by means of the actuator 1, the gas strut 35A, 37A is compressed.

It is evident from Fig.6 can be understood, 37A operatively connected between a part of the frame sweeping/cleaning of the machine and the brush head 8 by means of its connection with the lower link of a parallelogram 38A. It can be estimated that when the brush head 8 is moved to its contact with the surface of the particles to be cleaned and the floor, the parallelogram 38A is rotated clockwise to move the piston element 37A into the chamber 35A gas struts, this relative movement will gradually resist the pressure inside the chamber 35A. Counterbalancing force provided by the gas counter 35A, 37A, shown in Fig.6, is used, as in the case of the device according to Fig.4, to generate the actual efforts on the brush head 8, which can be easily controlled, especially in the range from zero pressure to a pressure corresponding to the weight of the brush head 8.

If we now turn to Fig.7, it presents another variant of implementation of the design according to the invention, with distinctive signs, General signs in the figures 4 and 5, indicated a similar positional numbers.

The main difference between the variant design according to Fig.7 and option design according to Fig.5 and 6 is, when the gas strut 36b, 37b expanded, not shrunk. Again, the pressure in 35b limits the extent to which the element 37b may be raised from it, and serves to balance the force exerted by the actuator 1. Gas strut 35b, 37b version of the design according to Fig.7 operatively connected between the elongated console 40 of the frame 30 of the treatment machine and a connecting leg 41 of the brush head 8. It is evident from Fig.7 it can be understood that when the actuator operates to lower the brush head to particles/cleaned the floor, the gas strut 35b, 37b extends and is exposed to effective tension due to the pressure developed inside the chamber 35b. On the contrary, when the brush head 8 is raised from the floor, the pressure created inside the chamber I in the previous relative movement of the chamber 35b and the piston element 35b, helps keep the weight of the brush head 8 at a distance from the floor.

As in each of these embodiments designs, the gas strut may preferably be performed so that the pressure inside the chamber can be selectively changed to a specific value, when the brush is stationary, i.e. when methoprene and provides a preferred arrangement for implementing the precise control of pressure and speed, required in the case of the present invention. It contains the standard integrated circuit that includes a microprocessor or microcontroller U3, integrated circuit U1, U4 and U6 energy supply, storage device U2 to save the information when turned off and the analog-to-digital Converter U5.

The measured pressure signal from the bridge or deformation of the pressure sensor installed in the cutter head, is fed to the microprocessor U3 through amplifying means U7 and analog-to-digital Converter (ADC)U5.

Variables system data stored in the storage device U2 and storing data during shutdown.

The state of the external switch inputs on the treatment machine are selected through the buffer device JP2.

The microprocessor U3 performs the appropriate calculations on the basis of the reference variables and groups of variables of the system and generates output control signals through the MOS transistors Q5-Q8, relays RL1, RL2>, RL3 > and RL4 series, the buffer device JP1 to pin relay was driven by the actuator on the cleaning machine. For example, when releasing the relay RL4 series to the actuator lowering the cleaning head, and releasing the relay RL1 is ensured by the prohibition of movement or thrust of the treatment machine. When is actuated relay RL2 > includes the solenoid motor brushes. The program is made so that it was only when the actual pressure of the brushes and the desired pressure of the brushes are balanced, and only when the machine is in motion to prevent the application of brush marks on the floor when they are stationary.

The SENSE input buffer device JP1 determines whether the treatment machine is in motion or not. If Yes, then the scheme prevents the change of pressure in order to prevent damage to brushes.

The input SPEED to the buffer device JP1 perceives, high or low speed is selected for the brushes. This information is fed to the processor U3, which limits the pressure of the brushes at high speed to a predefined range, in order to protect the motors brushes.

Buffer device JP2 signals to the machine control panel to provide a display of the actually measured pressure and the indication of the set values on the display device LED.

In Evo for monitoring battery with the to record the total time of its use, as well as monitor the battery charging status. Under certain specified conditions, which are programmed in circuit U2 memory system parameters, the cleaning brush can rise automatically. Such conditions provide long-term use of the battery and/or low charge. After that, the operator has only to take the car to the base for recharging or battery replacement in order to ensure a healthy battery.

The control circuit according to the invention has the capability for very fine control and allows you to set a very precise value of the pressure of the brush head.

The microcontroller U3 is preferably programmed so that has always been change in pressure to move the brush down, which improves the accuracy of the settings. For example, if the operator is required to change the pressure from 100 pounds (45,36 kg) 40 lb (18.14 kg), then the control device will provide a leap to a value of about 20 pounds (9,07 kg), and then slowly increase the pressure to the desired value, at roughly 40 pounds (18.14 kg). This arrangement eliminates jamming when the machine is in operation. This is especially PR calculates speed, when there is a change in pressure, and makes appropriate adjustments.

The circuit also preferably monitors the status of an external switch lift/ lower the brush head, while the microprocessor U3 can be programmed to account for the status of this switch when deciding whether to perform certain operations.

In Fig.9 shows a view in cross section of a device 40 for driving the processing head according to one of embodiments of the present invention, which contains the motor 41 in conjunction with the gearbox 42.

The drive shaft 43 of the motor ensures the transmission of rotation to the input of the gearbox 42 and the output shaft 44, coming from the gearbox 42, provides the rotation of the output device for the rotation of the cleaning/polishing the head device.

The engine includes a housing 45, which passes in a direction parallel to the shaft 43, and near the gearbox 42 on the end of the housing 45 mounted plate 46 that covers the engine. The gearbox is actually attached by bolts to the closing motor plate 46, so that the output is before the body, which passes from the plate 46 that covers the engine, and which at the end remote from the plate 46 of the engine, is closed by a plate 47, which passes through the output shaft 44.

The output shaft 43 is engaged with a shortened shaft 48, which is held in the gear box 42 and rotatably mounted at the end remote from its engagement with the input shaft 43, in the installation recess 49 formed in the inner surface of the closing plate 47 of the transmission. The installation recess 49 provides installation shortened shaft 48 inside the gearbox with the ability of its rotation.

Shortened shaft 48 along its length in the axial direction is provided with two gears. The first gear 50 mounted on the end of the shortened shaft 48 adjacent to the recess 49, the diameter of the first gear 50 is slightly less diameter shortened shaft 48. The diameter of the second gear 51 mounted on the short shaft 48 and adjacent to the end plate 46 of the engine, the diameter of the shortened shaft 48.

As will be explained hereinafter, the first 50 and second 51 gear, mounted on the short shaft 48, are designed to provide a predetermined gear ratio gear device boxes before the, passes between the respective support bracket located near plate 46 that covers the engine, and plate 47, closing the transmission.

As in the case of a shortened shaft 48, the output shaft 44 includes two gears spaced from each other in the axial direction of the output shaft 44, with one gear 52 is designed to mesh with the first gear 50 is shortened shaft 48, and the other gear 53 is designed to mesh with the second gear 51 mounted on the short shaft 48.

The diameter gear 53 mounted on the output shaft 44, similar to the diameter of the second gear 51 on the short shaft 48, so that the gear ratio between the gears 51 and 53 is 1:1.

Gear 52 mounted on the directional vertical shaft 44 has a larger diameter than the gear 50 mounted on the short shaft 48 and gear 51,53.

The gear 52 is chosen so that the gear ratio between the gears 50, 52 is 5:1.

The aforementioned gear ratio provide the desired reduction in speed when switching from cleaning operations stiff brush in operation for polishing the floor, so the transmission according to Fig.9 depict 44 is provided with a pair of gears 51,53, the output shaft rotates at a speed consistent with the speed of the engine, for example, about 1000 rpm But when the transmission is switched so that the output shaft 44 is driven by a pair of gears 50,52, gear ratio 5:1 this pair of gears reduce the speed of the output shaft, and therefore head for surface treatment, up to 200 rpm

Above the corresponding rates are the speed, the preferred cleaning with a stiff brush and polishing, and therefore, when properly managed, the pressure that the head element for surface treatment affects the surface, the device can perform operations cleaning with a stiff brush and polishing.

Further, from Fig.9 it is clear that the gear pair 51, 53 and 50, 52 are set so that they are in constant mesh with gear 52, 53 on the output shaft are free rotation during engine operation and to selectively control the drive of the output shaft 44 through clutch 54.

The Cam sleeve 54 is driven by the drive mechanism 55 reciprocating manner in the direction Struchkova clutch 54 is made with reversed in the opposite side surfaces, includes recesses 56, which are designed for going down lugs 57 formed on the above-mentioned gears 52, 53.

In the position shown in figure 9, the Cam sleeve 54 is moved for engagement with the protrusion of the gear 52 so as to provide rotational movement of the head for surface treatment with a speed of about 200 rpm

The actuator 55 is driven by a host shift, which preferably operate the solenoid, and which may optionally include a means of blocking solenoid preferred for preventing movement of the Cam clutch as soon as you select a certain speed of rotation of the output shaft 44.

As mentioned previously, the node 58 gear may preferably be linked to the management tool, so that the choice of a specific pressure, which must be enclosed head node for surface treatment, serves to actuate node 58 shift to select a specific gear ratio or, alternatively, the selection of a particular gear ratio is used to ensure, or limit osenia.

It is obvious that the present invention is not limited to the details of the above embodiments designs. For example, in the present invention can be introduced by any acceptable means for selecting the pressure, the attached head node for surface treatment, and may have any acceptable form of picker speed. Furthermore, in addition to presented here by car, Hiking managed by the operator, the device can be easily integrated into the machine, carrying the operator.

1. A device for processing the surface of the containing frame of the machine supporting driven by a motor head Assembly for surface treatment, the means for selectively changing the pressure head Assembly on said surface between at least a first value and a second value, different from the first value, means to selectively change the speed at which the head Assembly is driven by the engine, between at least a first speed and a second speed different from the first speed, and includes the electoral lot of the gears having a gear ratio, based on the Tr the operation of the device with the first pressure value and to limit the operation to the second speed when the device is in the second pressure value.

2. The device under item 1, in which the gearing preferably contains a matching pair of gears being in constant mesh, and means for selecting one of the pairs to ensure move vertically from the transmission.

3. The device under item 1 or 2, wherein the means for selecting one of the pairs includes a clutch means in the form of a clutch.

4. The device according to p. 3, which has a solenoid actuator mounted for keeping him in two or more possible operating positions by a solenoid locking means.

5. Device according to any one of paragraphs.1-4, in which management tool is installed to control the switching of the transmission and thus interconnected with the tool of selection pressure, the attached head Assembly for surface treatment that switching transmission occurs in response to a selection of private pressures above or below one or more threshold values, or choose specific values.

6. Device according to any one of paragraphs.1-4, in which control is performed so that the choice of any private pressure value or range is converted preferably contains a first pair of gears with a gear ratio of 1:1 and the second pair of gears with a gear ratio of 5:1.

8. Device according to any one of paragraphs.1-7, which includes preventing a tool that is designed to prevent the change in the gear mechanism, while the engine drives the head Assembly for surface treatment.

9. The device under item 8, which prevents the tool is installed to limit the pressure that can be applied by site head for surface treatment, as only the selected gear ratio, providing a high speed.

10. The device under item 1, in which the head Assembly for surface treatment adapted for providing removable attachment of various elements for surface treatment.

11. The device according to p. 10, in which the head Assembly for surface treatment adapted for providing removable attachment of a variety of elements for processing of surfaces having different characteristics with respect to the processing surface.

12. The device according to p. 11 in which the means for selectively changing the pressure head for surface treatment, is set to pressure changes in response to the use of funds head for obrabotki to selectively change the speed, with which the head Assembly is driven by the engine, is designed so that the speed can be changed in response to the use of funds head for surface treatment with different characteristics.

14. Device according to any one of the preceding paragraphs which includes an actuator containing a spring means installed so that it acts as podvysockogo means includes means for displacement of the head Assembly for surface treatment to the workpiece, the tool tension to the tension of the spring means to establish a pressure head Assembly for surface treatment, while the spring means is made with the possibility of selective adjustment means tension in a continuous range to provide the desired offset to the surface.

15. The device according to p. 14, in which the means of tension includes means to control the tension of the spring means in order to change the displacement of the head Assembly for surface treatment.

16. The device according to p. 15, in which the actuator is installed to compress the spring means.

17. The device according to any of the Cai for surface treatment for selective displacement of the head Assembly for surface treatment to the treated surface and installed so that to act as podvysockogo means between the frame and head Assembly for surface treatment, a means for monitoring and/or measuring the supplied operating pressure, means for indicating the measured working pressure, means for entering operator desired operating pressure of the head Assembly for surface treatment, a comparator for comparing the pressure entered by the operator, with the measured pressure and to generate a control signal in response to the difference between the desired pressure and the measured pressure and the means for supplying the control signal to the means of application of pressure.

18. Device according to any one of the preceding paragraphs, in which the means for selectively changing the pressure applied to the surface of the head Assembly for surface treatment, includes bias means acting between the frame and head Assembly for surface treatment and containing the actuating mechanism having a first element and a second element extending from it, with the actuator, in addition, preferably is actuated manually, hydraulically or electrically.

19. The device according to p. 18, in which the bias means includes a spring among the people of the actuator and head Assembly for surface treatment.

20. The device according to p. 19, in which the spring device comprises a sleeve attached to the side of the actuator, the stem, the inner end of which is made slidable within the sleeve, the rod projects from the sleeve to the head Assembly for surface treatment, and a spring disposed within the sleeve and member engages with the inner end of the rod.

21. Device according to any one of the preceding paragraphs, which includes an actuator for lifting and lowering the head Assembly for surface treatment, mounted between the frame and head Assembly for surface treatment, and means operatively connected to the head Assembly for surface treatment and set for at least partially counteract the force exerted on the head node for processing the surface of the actuator when lowering the head Assembly for surface treatment, and thus to control the pressure head Assembly for surface treatment on the surface, in the range which includes a length of from zero pressure to a pressure corresponding to the weight of the head Assembly for surface treatment.

22. The device according to the enforcement mechanism, contains a balancing tool.

23. The device under item 21 or 22, in which the means for counteracting the force exerted on the head node for processing the surface of the actuating mechanism includes an elastic means, operatively connected to the head Assembly for surface treatment.

24. The device according to p. 23, in which the elasticity of the elastic means to selectively change.

25. The device under item 23 or 24, in which the resilient means includes at least two movable relative to each other element mounted for resilient movement relative to each other.

26. Device according to any one of paragraphs.23-25, in which the resilient means includes a cylinder and a piston.

27. The device according to p. 26, in which the resilient means includes a gas rack.

28. The device under item 23 or 24, in which the resilient means includes spring means.

29. Device according to any one of paragraphs.18-20, in which the means for selectively changing the pressure head Assembly for surface treatment, contains an elongated balance beam pivotally connected to the frame and connected at one end to the actuator to move the walking items which further includes a means for determining the operational characteristics of the head Assembly for surface treatment, so that said data can be used for subsequent control of the device.

31. Device according to any one of the preceding paragraphs, which further includes a means for monitoring and/or measuring the pressure applied, the induction means acting for selection by the operator of the desired pressure, the comparison tool to compare the supplied pressure to the desired pressure and to generate a control signal in response to the comparison results and the means for supplying the control signal to control the means of application of pressure.

32. Device according to any one of the preceding paragraphs, which includes analog-to-digital converting means for converting input signals characterizing respectively the measured pressure of the processing head and the pressure selected by the operator, a storage means for determining operating parameters of the system and the computing means is programmed to compare two input signals and for creating a control signal in response to the comparison, praderie contains a combined machine for cleaning hard brushing/polishing the floor.

Priority points:

04.09.1996 on PP.1-5, 25-31;

20.02.1997 on PP.6-24.

 

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