Machine working equipment control system

FIELD: physics, control.

SUBSTANCE: invention relates to machine working equipment control means. Proposed control system comprises transducer to output working equipment measuring signal indicating the machine working equipment speed caused by machine inclination and controller. Note here that said controller can receive said measuring signal, operator's control signal and to define corrected operator's signal with allowance for aforesaid measuring signal and operator's signal. Note here that corrected operator's control signal is partially compensated for shortage of said operator's control signal. Besides, invention covers the method of correction of earth handling equipment.

EFFECT: corrected speed on uneven surface.

21 cl, 9 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: working vehicle drive is provided with instruction manual by training interface arranged in driver's cabin that defines vehicle displacement between loading position and unloading position located at certain distance there between. Driver is informed on events occurring along run way to bring about optimum effects on operation of working vehicle as far as definite parameters is concerned. Then particular recommendation is used to instruct vehicle driver on how vehicle should be operated after occurrence of said events as far as definite parameters is concerned.

EFFECT: perfected operation during reiterated working cycle.

23 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: device includes, at least, one sensor for sensing immediate position of executive device relatively the supporting structure, display device that can display immediate position of executive device relatively the supporting structure and data processing unit, with the help of which depending upon, at least, one input value one can define, at least, one range of executive device adjustment, within which the position of executive device can be adjusted at preset stability of construction machine against turnover, note that display device can display adjustment range together with immediate position of executive device.

EFFECT: increase of safety, reliability and stability against turnover of constriction machines.

12 cl, 3 dwg

FIELD: construction.

SUBSTANCE: group of inventions relates to construction machines. A construction machine comprises a workplace of an operator with a driver's seat (22), a support, on which the seat (22) is installed as capable of rotation around the vertical axis (A1), a bracket of a control organ, installed as capable of rotation around the specified axis (A1) relative both to the seat and the seat support, a contact element on the seat for engagement with the bracket of the control organ, a displacing element for displacement of the support bracket in direction of the contact element, a stop limiter of the seat support for limitation of displacement of the support bracket and a sensor of seat position for determination of the intermediate position of the seat. The seat may rotate around the vertical axis (A1) from the first working position into the second working position with transition over the intermediate position. When the seat moves between the first position and the intermediate position, the control organ forms the first configuration with the seat, in which the first control organ moves together with the seat so that it is in the working position in respect to the seat. When the seat rotates from the intermediate position into the second position, the control organ automatically moves into the second configuration, in which it is moved into the non-working position in respect to the seat.

EFFECT: group of inventions provides for ergonomic layout of a construction machine operator's cabin.

17 cl, 9 dwg

FIELD: transport.

SUBSTANCE: invention relates to self-propelled working machine, for example, soil cutter, asphalt cutter, snow-plough with cutter, etc. Proposed cutter machine comprises main working assy composed of cutter drum running about horizontal axis and provided with cutting tools arranged in its circumference. Note here that main working tool can run in stationary mode and is actuated by the drive motor. Note here that said drive motor incorporates starting circuit for starting current limitation that comprises at least one frequency inverter. Besides, it incorporates working circuit (19) for stationary mode with bridge to shunt frequency inverter after start or reaching of stationary mode. Note here that working circuit (19) comprises the device to deactivate said bridge (9) and power supply of motor (M) from electric power source via frequency inverter (FU) at cutter drum working rpm lower than preset one and to activate said bridge (9) to shunt said inverter (FU and to supply motor (M) directly from power source at working rpm higher than preset one.

EFFECT: reliable starting, higher efficiency, lower operating costs.

19 cl, 10 dwg

FIELD: construction.

SUBSTANCE: invention relates to a device for soil material excavation under water. The device comprises a pontoon equipped with an excavator made as capable of digging soil under water, actuating elements made as capable of pontoon and/or excavator movement control, the first controlling facility made as capable of tracking excavator position. At the same time the floating excavator with a back shovel also comprises the second controlling facility made as capable to track load experienced by the excavator, and the third controlling facility made as capable to track pontoon position, a computer made as capable to calculate control signals for actuating facilities on the basis of data received from the first, second and third controlling facilities.

EFFECT: technical result is increased efficiency of bottom-dredging works performance.

15 cl, 4 dwg

FIELD: transport.

SUBSTANCE: proposed invention relates to self-propelled surface rotor excavator, preferably in the form of road hoe, screw-rotor snow plough or open-cut combine, with cutter-drum capable to rotate around horizontal axis and with cutter-drum drive containing at least one electric motor installed inside the cutter-drum where electric motor stator and rotor are installed inside air- and/or dust-tight motor housing. It is proposed to provide cutter-drum drive motor located inside cutter-drum body with cooling device having closed liquid cooling circuit. Due to high heating capacity of suitable cooling liquid such as oil or water and glycol mixture, small volume flows are enough for liquid cooling circuit thus allowing small pipeline cross-sections. On the other hand, due to closed structure of liquid cooling circuit, it is possible to avoid any dust entering into cutter-drum drive as well as dust generation by exhaust air.

EFFECT: lower thermal load on cutter-drum drive without increase in dust load.

14 cl, 5 dwg

FIELD: mining.

SUBSTANCE: method of control of dragline excavator bucket comprising the setting of control signals by the rotation speed of lifting, traction and rotation drives, regulation of rotation speed of these drives, formation by the pre-set and current values of tension forces in lifting and traction ropes of control signals by forces in these ropes is offered, then these signals are compared by the force with the corresponding signals by the rotation speed of lifting and traction drives with the subsequent separation from the compared signals of the maximum signals, the separated control signal of the lifting drive is fed to the input of the unit of control of rotation speed of the lifting drive directly, the separated control signal of the traction drive is fed to the input of the unit of control of rotation speed of the traction drive through the first main operated key, a control signal of the rotation drive is fed to the input of the unit of control of rotation speed of the rotation drive through the second the main operated key. Besides, the current lengths of lifting and traction ropes are measured, in addition the distances to two boundaries of the bucket position of in a face with reference to face brow are measured. The lengths of traction ropes corresponding to the bucket position on the named boundaries, and the length of lifting ropes corresponding to the bucket position on the boundary of bucket braking are pre-set; the level of limitation of a control signal of the traction drive at the bucket position on the boundary of restriction of bucket speed and additional force of tension of lifting ropes at the bucket position on the boundary of bucket braking. During excavation the current lengths of lifting and traction ropes are compared with their preset values to the named boundaries. Also the device for control of movement of dragline excavator bucket comprising the units of control of rotation speed of lifting, traction and rotation drives, units of separation of control signals of lifting and traction drives, the inputs of which are connected to outputs of the corresponding setting device of rotation speed of these drives and regulators of tension forces of lifting and traction ropes is offered, the first input of each of the latter is connected to an output of the corresponding setting device of tension force of ropes, and the second - to an output of the corresponding converter of tension force of ropes, meanwhile the input of the unit of control of rotation speed of the lifting drive is connected directly to an output of the unit of separation of control signal of the lifting drive, the input of the unit of control of rotation speed of the traction drive is connected to an output of the first main operated key, and the input of the unit of control of rotation speed of the rotation drive is connected through the second operated key to an output of the setting device of rotation speed of this drive, and also converters of length of lifting and traction ropes. The device is additionally fitted with three nonlinear elements, four additional operated keys, an element of limitation of a control signal of the traction drive and a setting device of additional tension of lifting ropes. Meanwhile the input of the first nonlinear element is connected to an output of the converter of length of lifting ropes, and inputs of the second and third nonlinear elements - to an output of the converter of length of traction ropes, the output of the first nonlinear element is connected to the operating input of the first additional key, the output of the second nonlinear element is connected to the operating inputs of the second and third additional keys, the output of the third nonlinear element is connected to the operating input of the first and second main keys and the fourth additional key. The input of the first main key is connected to an output of the unit of allocation of control signal of the traction drive through the first and second additional keys, and also through the first additional key, an element of limitation of control signal of the traction drive and the third additional key. The fourth additional key is included between an output of a setting device of an additional tension of lifting ropes and the third input of the regulator of a tension of lifting ropes.

EFFECT: improved characteristics.

4 cl, 2 dwg

FIELD: transport.

SUBSTANCE: proposed device comprises control lever 3 to be actuated by operator to turn about pivot point H that has free end 5. Note here that control lever 3 can displace in vehicle lengthwise direction between near position P5 of operator and far position P1 for control over vehicle starting clutch. Besides, control lever 2 comprises extra support 4 to be attached to vehicle body for support of operator hand when its acts on control lever 3. Note also that control lever 3 has mid part 7 arranged between free end 5 and support point H and shaped to partially cover said support element 4 at near position P5.

EFFECT: safe and friendly control.

14 cl, 6 dwg

FIELD: transport.

SUBSTANCE: system contains electronic control unit to control attachments, transmission, engine and machine steering mechanisms, facility for measuring parameters of its motion (actual and ideal speed, slippage, etc.), control instruments and display. Machine motion parameter measurement is performed using micromechanical gyroscopes and accelerometers. In the system, prediction of running forward machine board slippage amount is performed with subsequent optimisation of machine turning radius. Following is implemented in the system: automatic adjustment of machine motion speed depending on motion route irregularities identified during previous machine run, as well as attachment control from condition that irregularities of ground surface formed by its cutting edge does not result in necessity to decrease rollback speed. Machine control is optimised for works on slopes and sidehills, on loosened rocky materials, in confined areas, when electric cables and metal objects are present in processed ground. Various types of machine motion programmed control are implemented including control over curved routes and over previous machine trace. Automated control of brakes and machine engine fuel feed is implemented.

EFFECT: higher productivity of excavatory-transport machine and improvement of operator working conditions.

12 cl, 1 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining particularly to openworking of rocks. Proposed method comprises setting of the drive operating and maximum possible speeds, measurement of current force and its comparison with preset magnitude. Note here that two types of zones in excavation face are localised by coordinates of gotten blast wells and actual parameters of drilling-and blasting jobs that differ in probability of maximum dynamic load expectation. At the first zone, that of probable expectation of maximum dynamic loads, located around gotten blast wells with accrual parameters of drilling-and blasting jobs not complying with design values, drive speed is changed from maximum to operating magnitude. At second zone, that of probable expectation of maximum dynamic loads and localised by the position of gotten well spacing with actual parameters of drilling-and blasting jobs, after confirmation of maximum preset digging forces, drive operating speed is set. If maximum loads are not confirmed in the next excavation cycles, drive speed is changed to maximum value. Drive maximum speed is used beyond the zones of maximum dynamic load expectation.

EFFECT: higher efficiency of excavation.

FIELD: transport.

SUBSTANCE: invention relates to earth mover control systems. Shovel penetration drive control device incorporates the drive and the controller to generate output signal to vary shovel penetration rate. Note here that said controller can detect drive rpm range wherein actuator output signal increase at increase in drive rpm and, on the contrary, decrease at its decrease. Besides, proposed system comprises user's interface for manual control over drive rpm.

EFFECT: higher efficiency owing to better adaptability to varying conditions.

11 cl, 28 dwg

FIELD: construction.

SUBSTANCE: maximum electric capacity taken by a mine excavator comprising electric motors, from a source of electric power, is reduced by supplying additional electric capacity from a device of electric energy storage. At the same time the input electric power taken by the mine excavator is cyclic. For electric power taken from the source of electric power, the upper limit is set. When input electric capacity taken by the mine excavator exceeds the upper limit, the electric energy storage device, in particular, a bank of ultracapacitors, supplies electric power. Besides, the bank of ultracapacitors may be charged by the source of electric capacity during intervals between peaks of consumption. And electric capacity generated by electric motors operating in generator interval may also be collected and accumulated in the electric energy storage device.

EFFECT: increased efficiency and reliability of operation of an excavator due to limitation of peak takeoff of electric energy by mine excavators from a source of energy.

30 cl, 18 dwg

FIELD: graders, bulldozers, or the like with scraper plates or ploughshare-like elements.

SUBSTANCE: military machine comprises body with blade rotary installed on the body and blade retaining mechanism. Blade retaining mechanism comprises towing cable having ends pivotally connected to lower parts of ribs secured to blade. Central towing cable part is freely supported by clips provided with latches and installed on inclined front body sheet.

EFFECT: simplified structure and increased operational convenience, as well as improved crew protection against billets and shells.

9 dwg

Triaxial grader // 2200799

FIELD: dredgers and soil-shifting machines, particularly drives for building, road-building and hoisting machines provided with hydraulic drives and subjected to great loads applied to executive tools.

SUBSTANCE: hydroficated drive has power hydraulic cylinder with rod end and piston end connected to hydraulic system of earth-shifting machine. Power cylinder is installed on handle and has body to be rigidly fixed in any point thereof. Hydraulic cylinder used for bucket rotation is made as double-acting hydraulic cylinder with double-acting rod having ears to be hinged with the bucket in points of its fixation. Longitudinal axis of hydraulic cylinder and bucket fixation points are arranged on closed circle. Circle perimeter is equal to two rod travels and length of arch between bucket supports.

EFFECT: extended range of bucket rotation angle and simplified structure thereof.

4 dwg

FIELD: dredgers and soil-shifting machines, particularly drives for building, road-building and hoisting machines provided with hydraulic drives and subjected to great loads applied to executive tools.

SUBSTANCE: hydroficated drive has power hydraulic cylinder with rod end and piston end connected to hydraulic system of earth-shifting machine. Power cylinder is installed on handle and has body to be rigidly fixed in any point thereof. Hydraulic cylinder used for bucket rotation is made as double-acting hydraulic cylinder with double-acting rod having ears to be hinged with the bucket in points of its fixation. Longitudinal axis of hydraulic cylinder and bucket fixation points are arranged on closed circle. Circle perimeter is equal to two rod travels and length of arch between bucket supports.

EFFECT: extended range of bucket rotation angle and simplified structure thereof.

4 dwg

FIELD: physics, control.

SUBSTANCE: invention relates to machine working equipment control means. Proposed control system comprises transducer to output working equipment measuring signal indicating the machine working equipment speed caused by machine inclination and controller. Note here that said controller can receive said measuring signal, operator's control signal and to define corrected operator's signal with allowance for aforesaid measuring signal and operator's signal. Note here that corrected operator's control signal is partially compensated for shortage of said operator's control signal. Besides, invention covers the method of correction of earth handling equipment.

EFFECT: corrected speed on uneven surface.

21 cl, 9 dwg

FIELD: transportation.

SUBSTANCE: working vehicle is proposed, comprising: a chassis; at least one traction device supporting the chassis; at least one hydraulic actuator connected to the chassis; and a hydraulic circuit made with the possibility to control at least one hydraulic actuator. Wherein the hydraulic circuit comprises: a source of a hydraulic fluid; a feeding device communicating with the source and at least one hydraulic actuator for feeding the hydraulic fluid; a first return pipeline from the feeding device to the source, and a second return pipeline from the feeding device to the source. The first return pipeline comprises a first flow control device and a cooler. The first flow control device allows the hydraulic fluid to pass through the first return pipeline, when the pressure in the hydraulic circuit exceeds the first passage pressure of the first flow control device. The second return pipeline bypasses the cooler on the first return pipeline. Wherein the second return pipeline comprises a second flow control device allowing the hydraulic fluid to pass through the second return pipeline, when the pressure in the hydraulic circuit exceeds the second passage pressure of the second flow control device. Also, the hydraulic circuit comprises a controller in communication with at least one of the first and the second flow control devices for controlling at least one of the first and the second passage pressures, and a control valve in communication with the controller and a first check valve. Wherein the control valve has: the first, neutral, position, which provides pressure relief from the first check valve; and the second position, which directs pressure to the first check valve to increase the first actuation pressure of the first check valve.

EFFECT: improving the control and efficiency of hydraulic fluid heating in a working vehicle.

20 cl, 4 dwg

FIELD: graders, bulldozers, or the like with scraper plates or ploughshare-like elements.

SUBSTANCE: military machine comprises body with blade rotary installed on the body and blade retaining mechanism. Blade retaining mechanism comprises towing cable having ends pivotally connected to lower parts of ribs secured to blade. Central towing cable part is freely supported by clips provided with latches and installed on inclined front body sheet.

EFFECT: simplified structure and increased operational convenience, as well as improved crew protection against billets and shells.

9 dwg

FIELD: physics, control.

SUBSTANCE: invention relates to machine working equipment control means. Proposed control system comprises transducer to output working equipment measuring signal indicating the machine working equipment speed caused by machine inclination and controller. Note here that said controller can receive said measuring signal, operator's control signal and to define corrected operator's signal with allowance for aforesaid measuring signal and operator's signal. Note here that corrected operator's control signal is partially compensated for shortage of said operator's control signal. Besides, invention covers the method of correction of earth handling equipment.

EFFECT: corrected speed on uneven surface.

21 cl, 9 dwg

FIELD: transport.

SUBSTANCE: asymmetrical balancing drive for motor grader driving wheels includes central master drive with balancer suspension point which drive is installed with shift from heavier loaded rear wheel relative to centre of balancing drive with shift (0.25-0.35) B, where B is a distance between centres of driving wheel drives. Between intermediate drives of driving wheels, additional drive interacting with them is installed.

EFFECT: higher useful power to produce tractive force of motor graders and improve their performance.

1 dwg

Up!