CN102795215B - Double-linkage hydraulic control device - Google Patents
Double-linkage hydraulic control device Download PDFInfo
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- CN102795215B CN102795215B CN201210331909.6A CN201210331909A CN102795215B CN 102795215 B CN102795215 B CN 102795215B CN 201210331909 A CN201210331909 A CN 201210331909A CN 102795215 B CN102795215 B CN 102795215B
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- hydraulic motor
- brake
- linkage
- hydraulic
- connecting rod
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Abstract
The invention discloses a double-linkage hydraulic control device. The double-linkage hydraulic control device consists of a hydraulic motor switch, a linkage plate, a connecting rod, a support, a stay wire, a brake plate, a brake line, a brake pad, a hydraulic motor, a pneumatic key, an air pump, a connecting air pipe and a brake air pocket. The double-linkage hydraulic control device is characterized in that the air pump is arranged at the lower end of the support; the connecting air pipe is connected to one side of the air pump; the pneumatic key is arranged on the other side of the air pump; the stay wire is arranged on one side of the upper end of the support; the connecting rod is arranged on the other side of the upper end of the support; the stay wire can draw the connecting rod to slide together; the other end of the connecting air pipe is connected with the brake air pocket; the other end of the stay wire is connected with the brake plate; the other end of the connecting rod is arranged in the middle of the linkage plate; the brake plate is connected with the brake pad by the brake line; the hydraulic motor switch is arranged on the hydraulic motor; the upper end of the hydraulic motor switch is connected with one end of the linkage plate; and the upper end of the pneumatic key is connected with the other end of the linkage plate in a sliding hole form, so that the device is high in safety, reliability, practicability and loading capacity.
Description
Technical field
The invention belongs to vehicle technology field, say more specifically the Double-linkage hydraulic control device using on a kind of hydraulic drive vehicle.
Background technology
The vehicle of prior art is generally comprised of actuating unit, driver train, running gear, four parts of equipment, actuating unit generally can be divided into fuel power, gas power, Electronmotive Force, hybrid power etc., driver train generally can be divided into hydraulic-driven, Mechanical Driven, through the development of many decades, hydrostatic drive with mechanical drive, do not have efficiently, controllability is strong, reliability is suitable etc., and characteristic becomes a kind of actv. engineering truck type of drive.
The hydraulic driving mode of prior art generally has two kinds: the one, and center driven mode, this type of drive is that fluid pressure drive device replaces traditional machinery or hydromechanical transmission, retained the original drive axle of vehicle etc., the turning to of vehicle, differential, the modes such as four-wheel earth balance are constant, the advantage of this type of drive is simple in structure, and stepless change ability is strengthened, and power utilization degree improves, strong with conventional truck parts interchangeability, the seriation of applicable mechanical drive or hydraulic transmission product; Shortcoming is to fail fundamentally to change the structural arrangement of vehicle, and the performance of vehicle and tractive force characteristic do not have the change of matter yet.The 2nd, wheel individual drive mode, feature is: structural arrangement is flexible, can form multiple new version, when both sides motor composes in parallel oil circuit, has diff function, can realize deflection wheel; During both sides motor independent oil supplies, form differential locking-device function, can effective brake by the parking brake on diff or running brake, without drive axle device, vehicle structure is succinct, is convenient to maintenance and changes element.
The hydraulic drive vehicle of prior art has solved hydraulic-driven preferably, traveling control device, the technical barrier of operation possibility, as: the patent of invention that the patent No. is 200710091068.5, a kind of " hydraulic drive vehicle " disclosed, hydraulic drive vehicle can pass through with an engine drive left side, right hydraulic actuator also drives left with these hydraulic actuators, right drive wheel and make the motion of this hydraulic drive vehicle or turn to, this vehicle comprises for conversion operations person's action and result is passed to the gearshift of described hydraulic actuator, this mechanism comprises the first swing component and the left side swinging by speed of a motor vehicle cable, right the second swing component, this second swing component is placed on described the first swing component, by a left side, right steering cable swings, and pull bar is carried out to push-and-pull.
The patent No. is 200480028258.7 patent of invention, a kind of " traveling control device of hydraulic drive vehicle and hydraulic drive vehicle " disclosed, the traveling control device of described hydraulic drive vehicle comprises the Hydraulic Pump by prime mover driven, the running motor being driven by the pressure oil of supplying with from above-mentioned Hydraulic Pump, the walking control cock that the flow of the pressure oil of supplying with from Hydraulic Pump to running motor is controlled, by the motor load pressure providing via control cock, switch and when load pressure reduces, make the oil return lateral line of running motor or produce the balance cock of brake-pressure, when the He You of the overspeed testing agency overspeed testing agency that the overspeed state of running motor is detected detects the overspeed state of running motor, until produce brake-pressure and rely on this brake-pressure to remove the overspeed state of running motor by switching balance cock, the motor overspeed that suppresses running motor rotation suppresses mechanism.
The patent No. is 200880117954.3 patent of invention, a kind of " for operating the method for hydrostatically driven vehicle " disclosed, the method of being somebody's turn to do " for operating hydrostatically driven vehicle " has the driving engine of operation variable displacement boost pump, described capacity of pump can change at the inclination angle based on rotating wobble plate, the fluid stream being advanced by pump is sent to power for making at least one propulsion motor of the vehicle wheel rotation of vehicle, the electronic controller of vehicle utilizes the operating parameter of sensor sensing system, the for example inclination angle of rotating wobble plate or the hand of rotation of propulsion motor and speed, to produce actual signal, and actual signal is delivered to electronic controller, controller is determined the expectation inclination angle of rotating wobble plate based on control signal, and itself and the actual signal from sensor are compared, when the difference of angle signal and expected angle reaches predetermined extent and continues predetermined amount of time, the motion of vehicle stops.
Above-described various technical scheme has all solved hydraulic drive vehicle and operability thereof preferably; there is higher work efficiency; there is good controllability; but safety and reliability and the Practical Performance of hydraulic drive vehicle are poor; hydraulic drive vehicle in use; load-carrying capacity is not enough, and usually there will be safety misadventure.
Summary of the invention
In order to address the above problem, the invention provides a kind of safety and reliability and Practical Performance better, and there is the Double-linkage hydraulic control device of stronger load-carrying capacity, its concrete scheme is: described Double-linkage hydraulic control device is by hydraulic motor on-off, linkage board, connecting rod, support, bracing wire, braking vane, brake cable, brake facing, HM Hydraulic Motor, pneumatic key, air pump, connect tracheae, brake air bag forms, the lower end that it is characterized in that support arranges air pump, one side of air pump arranges connection tracheae, the opposite side of air pump arranges pneumatic key, upper end one side of support arranges bracing wire, the upper end opposite side of support arranges connecting rod, bracing wire can pull connecting rod to slide together, the other end that connects tracheae is connected with brake gas bag, the other end of bracing wire is connected with braking vane, the other end of connecting rod is arranged on the middle part of linkage board, braking vane is connected with brake facing by brake cable, hydraulic motor on-off is set in HM Hydraulic Motor, the upper end of hydraulic motor on-off is connected with one end of linkage board, the upper end of pneumatic key adopts the form of slide opening to be connected with the other end of linkage board.
HM Hydraulic Motor of the present invention, it is characterized in that HM Hydraulic Motor adopts variable piston HM Hydraulic Motor, be arranged in parallel high-pressure overflow valve, pressure-gradient control valve and flushing pump with variable piston HM Hydraulic Motor, the maximum pressure that high pressurized overflow reaches variable piston HM Hydraulic Motor is controlled in real time, pressure-gradient control valve is realized minimum pressure to the variation of maximum pressure to variable piston HM Hydraulic Motor, and to the deep fat in variable piston HM Hydraulic Motor, displacement in time covers next cold oil to flushing pump.
In use procedure, during braking vane work, brake cable plays brake action to brake facing, and bracing wire pulls connecting rod, and connecting rod pulls linkage board, and linkage board drives hydraulic motor on-off to open and close; Meanwhile, the air pressure of brake gas bag passes to air pump by connecting tracheae, and air pump drives pneumatic key operation, and pneumatic key is stirred linkage board, and linkage board drives hydraulic motor on-off to open and close.
The safety and reliability and the Practical Performance that the invention has the beneficial effects as follows Double-linkage hydraulic control device are better, and have stronger load-carrying capacity.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention; In accompanying drawing:
1. hydraulic motor on-off, 2. linkage board, 3. connecting rod, 4. support, 5. bracing wire, 6. braking vane, 7. brake cable, 8. brake facing, 9. HM Hydraulic Motor, 10. pneumatic key, 11. air pumps, 12. connect tracheaes, 13. brake gas bags.
The specific embodiment
By reference to the accompanying drawings the present invention is described in further detail, so that the public grasps implementation method of the present invention better, specific embodiment of the present invention is: described Double-linkage hydraulic control device is by hydraulic motor on-off 1, linkage board 2, connecting rod 3, support 4, bracing wire 5, braking vane 6, brake cable 7, brake facing 8, HM Hydraulic Motor 9, pneumatic key 10, air pump 11, connect tracheae 12, brake gas bag 13 forms, the lower end that it is characterized in that support 4 arranges air pump 11, one side of air pump 11 arranges and connects tracheae 12, the opposite side of air pump 11 arranges pneumatic key 10, upper end one side of support 4 arranges bracing wire 5, the upper end opposite side of support 4 arranges connecting rod 3, bracing wire 5 can pull connecting rod 3 to slide together, the other end that connects tracheae 12 is connected with brake gas bag 13, the other end of bracing wire 5 is connected with braking vane 6, the other end of connecting rod 3 is arranged on the middle part of linkage board 2, braking vane 6 is connected with brake facing 8 by brake cable 7, the upper end of hydraulic motor on-off 1 is connected with one end of linkage board 2, the upper end of pneumatic key 10 adopts the form of slide opening to be connected with the other end of linkage board 2.
HM Hydraulic Motor 9 of the present invention, it is characterized in that HM Hydraulic Motor 9 adopts variable piston HM Hydraulic Motor, be arranged in parallel high-pressure overflow valve, pressure-gradient control valve and flushing pump with variable piston HM Hydraulic Motor, the maximum pressure that high pressurized overflow reaches variable piston HM Hydraulic Motor is controlled in real time, pressure-gradient control valve is realized minimum pressure to the variation of maximum pressure to variable piston HM Hydraulic Motor, and to the deep fat in variable piston HM Hydraulic Motor, displacement in time covers next cold oil to flushing pump.
In use procedure, during braking vane 6 work, 8 brake actions of 7 pairs of brake facings of brake cable, bracing wire 5 pulls connecting rod 3, and connecting rod 3 pulls linkage board 2, and linkage board 2 drives hydraulic motor on-off 1 to open and close; Meanwhile, the air pressure of brake gas bag 13 passes to air pump 11 by connecting tracheae 12, and air pump 11 drives pneumatic key 10 operations, and pneumatic key 10 is stirred linkage board 2, and linkage board 2 drives hydraulic motor on-off 1 to open and close.
The safety and reliability and the Practical Performance that the invention has the beneficial effects as follows Double-linkage hydraulic control device are better, and have stronger load-carrying capacity.
Claims (2)
1. Double-linkage hydraulic control device, by hydraulic motor on-off (1), linkage board (2), connecting rod (3), support (4), bracing wire (5), braking vane (6), brake cable (7), brake facing (8), HM Hydraulic Motor (9), pneumatic key (10), air pump (11), connect tracheae (12), brake gas bag (13) forms, the lower end that it is characterized in that support (4) arranges air pump (11), one side of air pump (11) arranges and connects tracheae (12), the opposite side of air pump (11) arranges pneumatic key (10), upper end one side of support (4) arranges bracing wire (5), the upper end opposite side of support (4) arranges connecting rod (3), the other end that connects tracheae (12) is connected with brake gas bag (13), the other end of bracing wire (5) is connected with braking vane (6), the other end of connecting rod (3) is arranged on the middle part of linkage board (2), braking vane (6) is connected with brake facing (8) by brake cable (7), hydraulic motor on-off (1) is set in HM Hydraulic Motor (9), the upper end of hydraulic motor on-off (1) is connected with one end of linkage board (2), the upper end of pneumatic key (10) adopts the form of slide opening to be connected with the other end of linkage board (2).
2. Double-linkage hydraulic control device according to claim 1, is characterized in that HM Hydraulic Motor (9) adopts variable piston HM Hydraulic Motor, is arranged in parallel high-pressure overflow valve, pressure-gradient control valve and flushing pump with variable piston HM Hydraulic Motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210331909.6A CN102795215B (en) | 2012-09-10 | 2012-09-10 | Double-linkage hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210331909.6A CN102795215B (en) | 2012-09-10 | 2012-09-10 | Double-linkage hydraulic control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102795215A CN102795215A (en) | 2012-11-28 |
| CN102795215B true CN102795215B (en) | 2014-11-05 |
Family
ID=47194589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210331909.6A Expired - Fee Related CN102795215B (en) | 2012-09-10 | 2012-09-10 | Double-linkage hydraulic control device |
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| Country | Link |
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| CN (1) | CN102795215B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0999831A (en) * | 1995-10-04 | 1997-04-15 | Jidosha Kiki Co Ltd | Hydraulic pressure boosting system for vehicle |
| CN2286703Y (en) * | 1996-12-25 | 1998-07-29 | 浙江湖州天目山车辆集团有限公司 | Double-safety braking device for hydraulic machine |
| JP4206181B2 (en) * | 1999-12-15 | 2009-01-07 | 本田技研工業株式会社 | Interlocking brake device |
| CN200951763Y (en) * | 2006-02-20 | 2007-09-26 | 高智 | Electric, hydraulic dual control system of disc type brake for driller |
| JP4795835B2 (en) * | 2006-04-07 | 2011-10-19 | 本田技研工業株式会社 | Hydraulic drive vehicle |
| CN102649446B (en) * | 2012-04-17 | 2013-12-04 | 杭州葛高机械有限公司 | Hydraulic steering wheel steering brake control device of crawler walking machine |
| CN202743229U (en) * | 2012-09-10 | 2013-02-20 | 汶上弘德工程机械有限公司 | Double-linkage hydraulic control device |
-
2012
- 2012-09-10 CN CN201210331909.6A patent/CN102795215B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102795215A (en) | 2012-11-28 |
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Granted publication date: 20141105 Termination date: 20160910 |