CN110697630A - Hydraulic clutch and brake control system - Google Patents
Hydraulic clutch and brake control system Download PDFInfo
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- CN110697630A CN110697630A CN201910984708.8A CN201910984708A CN110697630A CN 110697630 A CN110697630 A CN 110697630A CN 201910984708 A CN201910984708 A CN 201910984708A CN 110697630 A CN110697630 A CN 110697630A
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- 238000000926 separation method Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 239000000725 suspension Substances 0.000 description 10
- 239000010727 cylinder oil Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 208000035874 Excoriation Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07509—Braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D48/04—Control by fluid pressure providing power assistance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Elements And Transmission Devices (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention provides a hydraulic clutch and brake control system, which comprises a shifting fork arranged on a gearbox, and a clutch pedal assembly and a brake pedal assembly which are coaxially and rotatably arranged on a front plate assembly, wherein the clutch pedal assembly and the brake pedal assembly are respectively connected with a clutch master cylinder and a brake master cylinder; the piston end of the clutch slave cylinder is fixedly connected with one end of the rocker arm assembly, and the other end of the rocker arm assembly is fixedly connected with one end of the separating rod; the other end of the separation rod is fixedly connected with the shifting fork. The limiting pressure spring, the return tension spring, the limiting bracket and the rubber tube are connected, so that the initial clearance of the clutch pressure plate is ensured while the mechanism clearance is eliminated, the service life of the clutch pressure plate is further prolonged, and the use safety of a vehicle is further improved.
Description
Technical Field
The invention belongs to the technical field of forklifts, and particularly relates to a hydraulic clutch and brake control system.
Background
Along with the scientific and technical progress, the overall design and manufacturing level of the forklift is continuously improved. The customer can not meet the conventional functional requirements any more, and gradually provides higher requirements for the man-machine comfort of the whole machine, so that the existing forklift mostly adopts a suspension type forklift structure and a saloon car pedal control system. The pedal assembly is arranged on the front plate assembly and is suspended on the forklift body together with the front plate assembly and the overhead guard through the shock pad. The structure greatly isolates the vibration transmitted to the foot pedal by the engine through the vehicle body, and greatly improves the driving comfort of users. However, for a mechanical forklift, a mechanical pull rod is adopted between a clutch pedal assembly and a mechanical gearbox clutch release fork for rigid structure, on one hand, the vibration of an engine and the mechanical gearbox is transmitted to a pedal, so that the driving comfort is greatly reduced; on the other hand user is stepping on and is pressing the separation and reunion footboard in-process, and there is reaction force in the separation and reunion footboard for fork truck front bezel assembly sinks along with the overhead guard, has consumed effective separation and reunion stroke, leads to the clutch separation incomplete, produces "the gear hanging" phenomenon, and then can lead to the too early wearing and tearing of clutch pressure disk, has reduced mechanical transmission's life by a wide margin.
In addition, for a forklift braking system, a brake master cylinder and a brake are basically connected by steel pipes. When a suspension forklift is adopted in the actual use process, the whole front plate assembly floats up and down due to jolt of the whole forklift due to the road surface or the operation driving habit, so that oil leaks at the joints of oil ports of brake steel pipes connected between the pedal control mechanism and the drive axle brake, and even the brake steel pipes are cut off due to vertical vibration to cause brake failure, so that great potential safety hazards exist.
Disclosure of Invention
In view of the above-mentioned problems faced by the prior art, the present invention provides a hydraulic clutch and brake control system.
The technical scheme of the invention is as follows:
a hydraulic clutch and brake control system comprises a shifting fork arranged on a gearbox, and a clutch pedal assembly and a brake pedal assembly which are coaxially and rotatably arranged on a front plate assembly, wherein the clutch pedal assembly and the brake pedal assembly are respectively connected with a clutch master cylinder and a brake master cylinder; the piston end of the clutch slave cylinder is fixedly connected with one end of the rocker arm assembly, and the other end of the rocker arm assembly is fixedly connected with one end of the separating rod; the other end of the separation rod is fixedly connected with the shifting fork.
In a further scheme, a left bracket, a middle bracket and a right bracket are welded on the front plate assembly side by side, and coaxial pin holes are formed in the left bracket, the middle bracket and the right bracket; the clutch pedal assembly is clamped between the left support and the middle support, the brake pedal assembly is clamped between the middle support and the right support, and the clutch pedal assembly, the middle support, the brake pedal assembly and the right support are sequentially connected after penetrating through the left support, the clutch pedal assembly, the middle support, the brake pedal assembly and the right support through pin shafts.
In a further scheme, the clutch pedal assembly comprises a clutch pedal and a clutch rotating shaft sleeve which are fixedly connected, the middle of the clutch rotating shaft sleeve is axially provided with a shaft hole, the outer side wall of the clutch rotating shaft sleeve is fixedly provided with a clutch support lug, and the outer side of the clutch pedal is fixedly provided with a clutch limiting bracket; the clutch lug is fixedly connected with a clutch piston mandril on the clutch master cylinder;
in a further scheme, the brake pedal assembly comprises a brake pedal and a brake rotating shaft sleeve which are fixedly connected, the middle of the brake rotating shaft sleeve is axially provided with a shaft hole, the outer side wall of the brake rotating shaft sleeve is fixedly provided with a brake support lug, and the outer side of the brake pedal is fixedly provided with a brake limiting bracket; and the brake support lug is fixedly connected with a brake piston mandril on the brake master cylinder.
In a further scheme, the brake rubber tube is respectively connected with two brake steel tubes through a three-way pipe, and the two brake steel tubes are respectively connected with a brake slave cylinder to realize braking of the vehicle.
In a further scheme, the three-way pipe is fixedly arranged at the top end of the gearbox through a three-way pipe mounting bracket; the clutch master cylinder and the brake master cylinder are both mounted on the front plate assembly through master cylinder supports.
According to the further scheme, a branch pump mounting frame is vertically and fixedly arranged on the outer side wall of the clutch branch pump, the branch pump mounting frame is mounted on the gearbox through a fixing frame, the fixing frame is of an L-shaped structure, the horizontal section of the fixing frame is fixed on the gearbox, a tension spring mounting support and a rotary pin shaft are vertically mounted on the outer side wall of the vertical section, and a limiting support is fixedly arranged on the fixing frame located on the outer side of the rotary pin shaft; the middle part of the rocker arm assembly is movably sleeved on the rotary pin shaft.
In a further scheme, the bottom end of the rocker arm assembly is connected with a tension spring mounting bracket on the fixing frame through a return tension spring.
In a further scheme, the middle part of the separating rod is fixedly provided with an annular limiting ring, and a limiting pressure spring is sleeved on the separating rod between the limiting ring and the shifting fork.
According to the further scheme, the shifting fork is sleeved on the separating rod, and the separating rod located on the outer side of the shifting fork is sequentially in threaded connection with a ball nut and a locking nut.
The clutch pedal assembly and the brake pedal assembly rotating shaft are coaxially arranged on the front plate assembly and then are respectively connected with a clutch piston mandril on the clutch master cylinder and a brake piston mandril on the brake master cylinder.
When the engine works, brake fluid respectively enters the clutch master cylinder and the brake master cylinder from oil inlets of the clutch master cylinder and the brake master cylinder, and when a driver steps on the clutch pedal assembly or the brake pedal assembly, brake oil enters the clutch slave cylinder from an oil outlet of the clutch master cylinder through a clutch rubber pipe, and the rocker arm assembly pulls the release rod, so that the release fork is driven, and the power separation of the engine is realized; or the brake oil enters the three-way pipe through the brake rubber pipe from the oil outlet of the brake master cylinder, and then enters the brakes on the two sides of the front wheel of the forklift through the left brake steel pipe and the right brake steel pipe respectively, so that the braking of the whole forklift is realized.
And the oil outlet of the clutch master cylinder is connected with the oil inlet of the clutch slave cylinder by a clutch rubber pipe. And the oil outlet of the master cylinder is connected with the three-way pipe through a brake rubber pipe.
Therefore, the invention solves the problem of 'gear engagement' caused by incomplete clutch separation of the mechanical vehicle of the existing suspension type pedal control mechanism, and greatly prolongs the service life of the clutch pressure plate; the suspension type pedal control mechanism is connected with the forklift box bridge assembly through the flexible rubber tube, so that the problem of brake steel tube fracture caused by a suspension structure is solved, and the use safety of the forklift is greatly improved; meanwhile, the vibration at the position of the operating pedal is greatly reduced, and the man-machine operating comfort is greatly improved.
The hydraulic clutch control mechanism is adopted, so that the problem that the front plate assembly sinks due to the reaction force of the clutch pressure plate when the clutch pedal is stepped on by adopting a mechanical pull rod structure between the gearbox and the front plate assembly is solved, the clutch stroke is prevented from being consumed, the working stroke utilization efficiency of the clutch pedal is improved, and the problem that the clutch pressure plate and the release bearing are worn at early stage due to incomplete clutch separation is solved.
The flexible rubber tube is adopted between the clutch pedal and the clutch in the system for transmission, so that the vibration transmitted to the pedal by the engine and the gearbox clutch is isolated, and the problem of large foot vibration caused by the adoption of a suspension type pedal structure of the existing forklift is solved.
In the system, the clutch master cylinder and the clutch slave cylinder as well as the brake master cylinder and the brake slave cylinder are connected by adopting the flexible rubber pipes, so that the problems of oil leakage at the joint of the pipeline joint and cut-off of the brake steel pipe caused by the up-and-down floating of the suspension type pedal operating mechanism along with the front plate assembly are solved, and the safety of the whole vehicle is greatly improved.
In the production of the whole vehicle, the clutch slave cylinder is pre-assembled to the gearbox in advance through the fixing frame, and the brake steel pipes on the left side and the right side and the three-way pipe are pre-assembled to the gearbox in advance through the three-way pipe mounting bracket; the clutch pedal assembly, the brake pedal assembly, the clutch master cylinder, the brake master cylinder and the like are preassembled to the front plate assembly in advance, when the whole vehicle is assembled, the clutch rubber tube and the brake rubber tube are only needed to be connected with the clutch slave cylinder and the three-way pipe on the box bridge assembly respectively, the assembly production of the whole clutch and brake control system is completed, and the production efficiency is greatly improved.
By adjusting the size of the rocker arm assembly and the cylinder diameter of the clutch slave cylinder, a proper lever ratio is realized, and the pedal operating force is reduced to the maximum extent while the requirement of the pedal working stroke is met.
The arrangement of the limiting pressure spring, the return tension spring and the limiting support in the system eliminates the mechanism clearance, ensures the initial clearance of the clutch pressure plate at the same time, and further improves the reliability of the mechanism.
The hydraulic clutch and brake control system is mainly suitable for forklifts and other vehicles.
Drawings
Figure 1 is a front view of the present invention,
figure 2 is a side view of the present invention,
figure 3 is a schematic structural view of a clutch pedal assembly in the invention,
FIG. 4 is a schematic structural view of a brake pedal assembly of the present invention,
figure 5 is a schematic diagram of the clutch master pump of the present invention,
figure 6 is a schematic view showing the construction of a brake master pump according to the present invention,
FIG. 7 is a schematic view showing the structure of the clutch pump of the present invention,
FIG. 8 is a schematic structural view of the fixing frame of the present invention,
fig. 9 is a schematic structural view of a rocker arm assembly of the present invention.
Number in the figure: the brake system comprises a clutch pedal assembly 1, a clutch revolving shaft sleeve 1-1, a clutch support lug 1-2, a clutch limit bracket 1-3, a clutch pedal 1-4, a brake pedal assembly 2, a brake revolving shaft sleeve 2-1, a brake support lug 2-2, a brake limit bracket 2-3, a brake pedal 2-4, a clutch master pump 3, a clutch master pump oil inlet 3-1, a clutch piston ejector rod 3-2, a clutch master pump oil outlet 3-3, a brake master pump 4, a brake master pump oil inlet 4-1, a brake piston ejector rod 4-2, a brake master pump oil outlet 4-3, a brake rubber tube 5, a clutch rubber tube 6, a three-way pipe 7, a brake steel pipe 8, a front plate assembly 9, a three-way pipe mounting bracket 10, a left bracket 11, a middle bracket 12, a right bracket 13, a master pump bracket 14, a clutch slave cylinder 15, a clutch slave cylinder and, The oil pump comprises a clutch slave cylinder oil inlet 15-1, a slave cylinder piston ejector rod 15-2, a slave cylinder mounting frame 15-3, a fixing frame 16, a slave cylinder mounting hole 16-1, a gearbox mounting hole 16-2, a rotary pin shaft 16-3, a tension spring mounting bracket 16-4, a limiting bracket 16-5, a rocker arm assembly 17, a separating rod mounting hole 17-1, an ejector rod mounting hole 17-2, a rotary shaft sleeve 17-3, a separating rod 18, a limiting compression spring 19, a ball nut 20, a locking nut 21, a shifting fork 22, a return tension spring 23 and a gearbox 24.
Detailed description of the invention
The invention will be further explained by the embodiments with reference to the drawings.
As shown in fig. 1-9, a hydraulic clutch and brake control system includes a shifting fork 22 installed on a transmission 24, and a clutch pedal assembly 1 and a brake pedal assembly 2 coaxially and rotatably installed on a front plate assembly 9, wherein the clutch pedal assembly 1 and the brake pedal assembly 2 are respectively connected with a clutch master cylinder 3 and a brake master cylinder 4, an oil outlet of the clutch master cylinder 3 is connected with an oil inlet of a clutch slave cylinder 15 through a clutch rubber tube 6, and an oil outlet of the brake master cylinder 4 is connected with an oil inlet of the brake slave cylinder through a brake rubber tube 5; the piston end of the clutch slave cylinder 15 is fixedly connected with one end of a rocker arm assembly 17, and the other end of the rocker arm assembly 17 is fixedly connected with one end of a separating rod 18; the other end of the separation rod 18 is fixedly connected with a shifting fork 22.
A limit ring is fixedly arranged in the middle of the separating rod 18, and a limit pressure spring 19 is sleeved on the separating rod 18 between the limit ring and the shifting fork 22. The shifting fork 22 is sleeved on the separating rod 18, and a ball nut 20 and a locking nut 21 are sequentially connected to the separating rod 18 on the outer side of the shifting fork 22 in a threaded mode.
Referring to fig. 2, a limiting pressure spring 19 is movably sleeved between the shifting fork 22 and the separating rod 18, one end of the limiting pressure spring 19 is limited by a limiting ring welded on the separating rod 18, and the other end of the limiting pressure spring is limited by the shifting fork 22. During assembly, the outer side of the shifting fork 22 is limited through the ball nut 20, the clutch stroke is adjusted by adjusting the ball nut 20, and meanwhile, the locking nut 21 is used for locking and fixing, so that the clutch control mechanism is reliable and durable.
The clutch pedal assembly 1 comprises a clutch pedal 1-4 and a clutch rotating shaft sleeve 1-1 which are fixedly connected, the middle of the clutch rotating shaft sleeve 1-1 is axially provided with a shaft hole, the outer side wall of the clutch rotating shaft sleeve is fixedly provided with a clutch support lug 1-2, and the outer side of the clutch pedal 1-4 is fixedly provided with a clutch limit bracket 1-3; the clutch lug 1-2 is fixedly connected with a clutch piston mandril 3-2 on the clutch master cylinder 3;
the brake pedal assembly 2 comprises a brake pedal 2-4 and a brake rotating shaft sleeve 2-1 which are fixedly connected, the middle of the brake rotating shaft sleeve 2-1 is axially provided with a shaft hole, the outer side wall of the brake rotating shaft sleeve is fixedly provided with a brake support lug 2-2, and the outer side of the brake pedal 2-4 is fixedly provided with a brake limiting bracket 2-3; the brake support lug 2-2 is fixedly connected with a brake piston mandril 4-2 on the brake master cylinder 4.
A left bracket 11, a middle bracket 12 and a right bracket 13 are welded on the front plate assembly 9 side by side, and coaxial pin holes are formed in the left bracket 11, the middle bracket 12 and the right bracket 13; the clutch pedal assembly 1 is clamped between the left support 11 and the middle support 12, the brake pedal assembly 2 is clamped between the middle support 12 and the right support 13, and the clutch pedal assembly 1, the clutch rotating shaft sleeve 1-1 on the clutch pedal assembly 1, the middle support 12, the brake rotating shaft sleeve 2-1 on the brake pedal assembly 2 and the right support 13 are sequentially connected after penetrating through the left support 11, the clutch rotating shaft sleeve 1-1, the middle support 12 and the brake rotating shaft sleeve 2-1 on the brake pedal assembly 2 through pin shafts. The clutch pedal assembly 1 and the brake pedal assembly 2 are concentrically arranged on the front plate assembly 9. Meanwhile, the height positions of the two pedal assemblies are adjusted and fixed by using bolts to penetrate through the clutch limiting brackets 1-3 and the brake limiting brackets 2-3.
The front plate assembly 9 is fixed on a top protection frame, and the top protection frame is connected with a vehicle body through a shock pad, so that the whole device is suspended above the vehicle body.
The brake rubber tube 5 is respectively connected with two brake steel tubes 8 through a three-way pipe 7, and the two brake steel tubes 8 are respectively connected with a brake slave cylinder to realize the braking of the vehicle.
The three-way pipe 7 is fixedly arranged at the top end of the gearbox 24 through the three-way pipe mounting bracket 10; the clutch master cylinder 3 and the brake master cylinder 4 are both arranged on the front plate assembly 9 through a master cylinder bracket 14.
Referring to fig. 1, the clutch master cylinder 3 and the brake master cylinder 4 are fixed to a master cylinder bracket 14 by bolts, and the master cylinder bracket 14 is welded to the front plate assembly 9. The clutch piston mandril 3-2 and the brake piston mandril 4-2 are respectively fixed by a pin shaft and a cotter pin after being in cross connection with the clutch support lug 1-2 and the brake support lug 2-2. When the clutch pedal 1-4 or the brake pedal 2-4 is stepped on, the clutch piston mandril 3-2 or the brake piston mandril 4-2 is driven to move downwards, and the brake oil in the clutch master pump 3 or the brake master pump 4 is led out from the oil outlet of the clutch master pump.
As shown in fig. 5-7, the clutch master cylinder 3, the brake master cylinder 4 and the clutch slave cylinder 15 are all hydraulic pump body structures, and the clutch master cylinder 3 is provided with a clutch master cylinder oil inlet 3-1, a clutch piston ejector rod 3-2 and a clutch master cylinder oil outlet 3-3; the brake master cylinder 4 is provided with a brake master cylinder oil inlet 4-1, a brake piston ejector rod 4-2 and a brake master cylinder oil outlet 4-3, the clutch slave cylinder 15 is provided with a clutch slave cylinder oil inlet 15-1 and a slave cylinder piston ejector rod 15-2, and the outer side wall of the middle part of the clutch slave cylinder 15 is welded with a slave cylinder mounting frame 15-3. The wheel cylinder mounting rack 15-3 is mounted on the gear box 24 through a mounting rack 16, the mounting rack 16 is of an L-shaped structure, the horizontal section of the mounting rack is fixed on the gear box 24, the outer side wall of the vertical section of the mounting rack is vertically provided with a tension spring mounting bracket 16-4 and a rotary pin shaft 16-3, and the mounting rack 16 positioned outside the rotary pin shaft 16-3 is fixedly provided with a limiting bracket 16-5; the middle part of the rocker arm assembly 17 is movably sleeved on the rotary pin shaft 16-3.
An oil inlet 3-1 of the clutch master cylinder and an oil inlet 4-1 of the brake master cylinder are respectively communicated with an oil storage device on the vehicle, and when the vehicle works, brake oil respectively enters the clutch master cylinder 3 and the brake master cylinder 4 through the oil inlet 3-1 of the clutch master cylinder and the oil inlet 4-1 of the brake master cylinder. When a brake pedal 2-4 in the brake pedal assembly 2 is stepped on, brake oil is transmitted to a three-way pipe 7 from an oil outlet 4-3 of a master cylinder through a brake rubber pipe 5 and then transmitted to brake slave pumps at two sides of a drive axle through a left brake steel pipe 8 and a right brake steel pipe 8, and the brake is generated by the pressure of the brake fluid. When a clutch pedal 1-4 in the clutch pedal assembly 1 is stepped on, brake oil enters a clutch slave cylinder oil inlet 15-1 from an oil outlet 3-3 of a clutch master cylinder through a clutch rubber pipe 6, so that a slave cylinder piston ejector rod 15-2 is driven to extend, a rocker arm assembly 17 is driven to rotate anticlockwise around a rotating pin shaft 16-3 to pull a release rod 18, a shifting fork 22 is driven to move, and the separation of a mechanical forklift clutch pressure plate is realized through the shifting fork 22.
The bottom end of the rocker arm assembly 17 is connected with a tension spring mounting bracket 16-4 on the fixed frame 16 through a return tension spring 23.
Referring to fig. 8-9, the fixed mount 16 is provided with a wheel cylinder mounting hole 16-1 and a transmission mounting hole 16-2, and the rocker arm assembly 17 is provided with a separating rod mounting hole 17-1, a top rod mounting hole 17-2 and a rotating shaft sleeve 17-3.
Referring to fig. 2, the clutch slave cylinder 15 is fixed with a slave cylinder mounting hole 16-1 on the fixing frame 16 by a bolt through a slave cylinder mounting frame 15-3, and the horizontal section on the fixing frame 16 is fixedly mounted on the gearbox 24 by passing through a gearbox mounting hole 16-2 on the fixing frame by a bolt. The rocker arm assembly 17 is sleeved on a rotary pin shaft 16-3 on the fixed frame 16 through a rotary shaft sleeve 17-3 for supporting, so that the rocker arm assembly 17 can rotate around the rotary shaft sleeve 17-3, and the rotating angle of the rocker arm assembly is limited through a limiting bracket 16-5 on the fixed frame 16; the separating rod mounting hole 17-1 on the rocker arm assembly 17 is connected with the separating rod 18 through a bolt, and the ejector rod mounting hole 17-2 is connected with the cylinder piston ejector rod 15-2 through a bolt.
Referring to fig. 2, a return tension spring 23 is arranged on the fixed mount 16, one end of which is fixed on the tension spring mounting bracket 16-4 and the other end of which is fixed on the ejector rod mounting hole 17-2. After the clutch pedal assembly 1 is released, the clutch pressure plate returns to the original state, the rocker arm assembly 17 is reset through the return tension spring 23 and the limiting support 16-5, on one hand, the movement clearance of the mechanism is eliminated, on the other hand, a certain clearance is kept between the clutch pressure plate and the shifting fork, and the clutch pressure plate is prevented from being pressed all the time to generate early abrasion.
Therefore, the invention solves the problem of 'gear engagement' caused by incomplete clutch separation of the mechanical vehicle of the existing suspension type pedal control mechanism, and greatly prolongs the service life of the clutch pressure plate; the suspension type pedal control mechanism is connected with the forklift box bridge assembly through the flexible rubber tube, so that the problem of brake steel tube fracture caused by a suspension structure is solved, and the use safety of the forklift is greatly improved; meanwhile, the vibration at the position of the operating pedal is greatly reduced, and the man-machine operating comfort is greatly improved.
The above description is not intended to limit the present invention in any way on the structure and shape thereof. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a hydraulic pressure type separation and reunion and brake control system, is including installing shift fork (22) on gearbox (24) to and coaxial rotation installation separation and reunion footboard assembly (1) and brake pedal assembly (2) on front bezel assembly (9), separation and reunion footboard assembly (1), brake pedal assembly (2) are connected its characterized in that with separation and reunion master cylinder (3), brake master cylinder (4) respectively: an oil outlet of the clutch master pump (3) is connected with an oil inlet of the clutch slave pump (15) through a clutch rubber tube (6), and an oil outlet of the brake master pump (4) is connected with an oil inlet of the brake slave pump through a brake rubber tube (5); the piston end of the clutch slave cylinder (15) is fixedly connected with one end of a rocker arm assembly (17), and the other end of the rocker arm assembly (17) is fixedly connected with one end of a separating rod (18); the other end of the separating rod (18) is fixedly connected with a shifting fork (22).
2. The hydraulic clutch and brake actuation system of claim 1, wherein: a left bracket (11), a middle bracket (12) and a right bracket (13) are welded on the front plate assembly (9) side by side, and coaxial pin holes are formed in the left bracket (11), the middle bracket (12) and the right bracket (13); the clutch pedal assembly (1) is clamped between the left support (11) and the middle support (12), the brake pedal assembly (2) is clamped between the middle support (12) and the right support (13), and the clutch pedal assembly (1), the middle support (12), the brake pedal assembly (2) and the right support (13) are connected after sequentially penetrating through the left support (11), the clutch pedal assembly (1), the middle support (12), the brake pedal assembly (2) and the right support (13) through pin shafts.
3. The hydraulic clutch and brake actuation system of claim 1, wherein: the clutch pedal assembly (1) comprises a clutch pedal (1-4) and a clutch rotating shaft sleeve (1-1) which are fixedly connected, the middle of the clutch rotating shaft sleeve (1-1) is axially provided with a shaft hole, the outer side wall of the clutch rotating shaft sleeve is fixedly provided with a clutch support lug (1-2), and the outer side of the clutch pedal (1-4) is fixedly provided with a clutch limiting bracket (1-3); the clutch support lug (1-2) is fixedly connected with a clutch piston mandril (3-2) on the clutch master cylinder (3).
4. The hydraulic clutch and brake actuation system of claim 1, wherein: the brake pedal assembly (2) comprises a brake pedal (2-4) and a brake rotating shaft sleeve (2-1) which are fixedly connected, the middle of the brake rotating shaft sleeve (2-1) is axially provided with a shaft hole, the outer side wall of the brake rotating shaft sleeve is fixedly provided with a brake support lug (2-2), and the outer side of the brake pedal (2-4) is fixedly provided with a brake limiting bracket (2-3); the brake support lug (2-2) is fixedly connected with a brake piston mandril (4-2) on the brake master cylinder (4).
5. The hydraulic clutch and brake actuation system of claim 1, wherein: the brake rubber pipe (5) is respectively connected with two brake steel pipes (8) through a three-way pipe (7), and the two brake steel pipes (8) are respectively connected with a brake cylinder to realize braking of the vehicle.
6. The hydraulic clutch and brake actuation system of claim 1, wherein: the three-way pipe (7) is fixedly arranged at the top end of the gearbox (24) through a three-way pipe mounting bracket (10); the clutch master cylinder (3) and the brake master cylinder (4) are both mounted on the front plate assembly (9) through a master cylinder bracket (14).
7. The hydraulic clutch and brake actuation system of claim 1, wherein: a branch pump mounting frame (15-3) is vertically and fixedly arranged on the outer side wall of the clutch branch pump (15), the branch pump mounting frame (15-3) is mounted on a gearbox (24) through a fixing frame (16), the fixing frame (16) is of an L-shaped structure, the horizontal section of the fixing frame is fixed on the gearbox (24), a tension spring mounting support (16-4) and a rotary pin shaft (16-3) are vertically mounted on the outer side wall of the vertical section, and a limiting support (16-5) is fixedly arranged on the fixing frame (16) located on the outer side of the rotary pin shaft (16-3); the middle part of the rocker arm assembly (17) is movably sleeved on the rotary pin shaft (16-3).
8. The hydraulic clutch and brake actuation system of claim 7, wherein: the bottom end of the rocker arm assembly (17) is connected with a tension spring mounting bracket (16-4) on the fixed frame (16) through a return tension spring (23).
9. The hydraulic clutch and brake actuation system of claim 1, wherein: the middle part of the separating rod (18) is fixedly provided with an annular limiting ring, and a limiting pressure spring (19) is sleeved on the separating rod (18) between the limiting ring and the shifting fork (22).
10. The hydraulic clutch and brake actuation system of claim 1, wherein: the shifting fork (22) is sleeved on the separating rod (18), and a ball nut (20) and a locking nut (21) are sequentially connected to the separating rod (18) on the outer side of the shifting fork (22) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984708.8A CN110697630A (en) | 2019-10-16 | 2019-10-16 | Hydraulic clutch and brake control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984708.8A CN110697630A (en) | 2019-10-16 | 2019-10-16 | Hydraulic clutch and brake control system |
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| Publication Number | Publication Date |
|---|---|
| CN110697630A true CN110697630A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910984708.8A Pending CN110697630A (en) | 2019-10-16 | 2019-10-16 | Hydraulic clutch and brake control system |
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| CN (1) | CN110697630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032225A (en) * | 2020-09-24 | 2020-12-04 | 吉林大学青岛汽车研究院 | Wet-type multi-disc brake with shifting fork force-increasing mechanism and using method thereof |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB980561A (en) * | 1962-11-08 | 1965-01-13 | Ford Motor Co | Clutch and brake control assembly |
| CN86204243U (en) * | 1986-06-17 | 1987-12-16 | 孙广斌 | Safe reserve brake device for vehicle |
| CN2222654Y (en) * | 1993-02-18 | 1996-03-20 | 赵贵良 | High-efficiency brake directly on road for motor vehicle |
| CN201385745Y (en) * | 2009-02-07 | 2010-01-20 | 北汽福田汽车股份有限公司诸城汽车厂 | Hydraulic clutch operating device of single cylinder four-wheel linked rear axle |
| CN201400088Y (en) * | 2009-04-10 | 2010-02-10 | 福田雷沃国际重工股份有限公司 | Hydraulic clutch operation mechanism for three-wheeled vehicles |
| CN102416870A (en) * | 2011-10-31 | 2012-04-18 | 重庆建设摩托车股份有限公司 | Control pedal structure of four-wheel all-terrain vehicle |
| CN202389212U (en) * | 2011-12-22 | 2012-08-22 | 山推工程机械股份有限公司 | Mechanical crawler-type travelling stepping clutch mechanism |
| CN203142952U (en) * | 2013-03-29 | 2013-08-21 | 重庆宗申发动机制造有限公司 | Motor tricycle braking operating control device assembly |
| CN203272524U (en) * | 2013-05-21 | 2013-11-06 | 陆良县云海机械有限公司 | Clutch operating mechanism of tractor |
| CN203717715U (en) * | 2013-12-25 | 2014-07-16 | 潍柴动力股份有限公司 | Pull type clutch operating separation mechanism |
| CN203995672U (en) * | 2014-08-18 | 2014-12-10 | 中国重汽集团济南动力有限公司 | A kind of clutch booster support device |
| CN204095517U (en) * | 2014-09-05 | 2015-01-14 | 北汽福田汽车股份有限公司 | Clutch maneuvering system and there is the vehicle of this clutch maneuvering system |
| CN204296698U (en) * | 2014-11-11 | 2015-04-29 | 安徽合叉叉车有限公司 | A kind of diesel machine fork truck service brake mechanism |
| CN204755648U (en) * | 2015-05-12 | 2015-11-11 | 湖南天一装备科技有限公司 | Tractor clutch operating mechanism |
| CN106364315A (en) * | 2016-10-19 | 2017-02-01 | 力帆实业(集团)股份有限公司 | Clutch and brake pedal assembly of automobile |
| CN106476787A (en) * | 2015-09-02 | 2017-03-08 | 大进合紧固件（昆山）有限公司 | Hydraulic pipeline connecting component for hydraulic braking system for automobile |
| CN107176148A (en) * | 2017-05-27 | 2017-09-19 | 陈志� | A kind of automobile provided with complemental brake system |
| CN108488275A (en) * | 2018-03-27 | 2018-09-04 | 张家港港务集团有限公司港盛分公司 | Improve the remodeling method and reconstruction structure of door machine rotary braking reliability |
| CN109808663A (en) * | 2019-03-20 | 2019-05-28 | 安徽合力股份有限公司 | A kind of vacuum boosting braking system for small tonnage fork car |
| CN208982540U (en) * | 2018-08-31 | 2019-06-14 | 中联重机股份有限公司 | Tractor clutch and clutch rocker arm axle assembly |
| CN211198499U (en) * | 2019-10-16 | 2020-08-07 | 安徽合力股份有限公司 | Hydraulic clutch and brake control system |
-
2019
- 2019-10-16 CN CN201910984708.8A patent/CN110697630A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB980561A (en) * | 1962-11-08 | 1965-01-13 | Ford Motor Co | Clutch and brake control assembly |
| CN86204243U (en) * | 1986-06-17 | 1987-12-16 | 孙广斌 | Safe reserve brake device for vehicle |
| CN2222654Y (en) * | 1993-02-18 | 1996-03-20 | 赵贵良 | High-efficiency brake directly on road for motor vehicle |
| CN201385745Y (en) * | 2009-02-07 | 2010-01-20 | 北汽福田汽车股份有限公司诸城汽车厂 | Hydraulic clutch operating device of single cylinder four-wheel linked rear axle |
| CN201400088Y (en) * | 2009-04-10 | 2010-02-10 | 福田雷沃国际重工股份有限公司 | Hydraulic clutch operation mechanism for three-wheeled vehicles |
| CN102416870A (en) * | 2011-10-31 | 2012-04-18 | 重庆建设摩托车股份有限公司 | Control pedal structure of four-wheel all-terrain vehicle |
| CN202389212U (en) * | 2011-12-22 | 2012-08-22 | 山推工程机械股份有限公司 | Mechanical crawler-type travelling stepping clutch mechanism |
| CN203142952U (en) * | 2013-03-29 | 2013-08-21 | 重庆宗申发动机制造有限公司 | Motor tricycle braking operating control device assembly |
| CN203272524U (en) * | 2013-05-21 | 2013-11-06 | 陆良县云海机械有限公司 | Clutch operating mechanism of tractor |
| CN203717715U (en) * | 2013-12-25 | 2014-07-16 | 潍柴动力股份有限公司 | Pull type clutch operating separation mechanism |
| CN203995672U (en) * | 2014-08-18 | 2014-12-10 | 中国重汽集团济南动力有限公司 | A kind of clutch booster support device |
| CN204095517U (en) * | 2014-09-05 | 2015-01-14 | 北汽福田汽车股份有限公司 | Clutch maneuvering system and there is the vehicle of this clutch maneuvering system |
| CN204296698U (en) * | 2014-11-11 | 2015-04-29 | 安徽合叉叉车有限公司 | A kind of diesel machine fork truck service brake mechanism |
| CN204755648U (en) * | 2015-05-12 | 2015-11-11 | 湖南天一装备科技有限公司 | Tractor clutch operating mechanism |
| CN106476787A (en) * | 2015-09-02 | 2017-03-08 | 大进合紧固件（昆山）有限公司 | Hydraulic pipeline connecting component for hydraulic braking system for automobile |
| CN106364315A (en) * | 2016-10-19 | 2017-02-01 | 力帆实业(集团)股份有限公司 | Clutch and brake pedal assembly of automobile |
| CN107176148A (en) * | 2017-05-27 | 2017-09-19 | 陈志� | A kind of automobile provided with complemental brake system |
| CN108488275A (en) * | 2018-03-27 | 2018-09-04 | 张家港港务集团有限公司港盛分公司 | Improve the remodeling method and reconstruction structure of door machine rotary braking reliability |
| CN208982540U (en) * | 2018-08-31 | 2019-06-14 | 中联重机股份有限公司 | Tractor clutch and clutch rocker arm axle assembly |
| CN109808663A (en) * | 2019-03-20 | 2019-05-28 | 安徽合力股份有限公司 | A kind of vacuum boosting braking system for small tonnage fork car |
| CN211198499U (en) * | 2019-10-16 | 2020-08-07 | 安徽合力股份有限公司 | Hydraulic clutch and brake control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032225A (en) * | 2020-09-24 | 2020-12-04 | 吉林大学青岛汽车研究院 | Wet-type multi-disc brake with shifting fork force-increasing mechanism and using method thereof |
| CN112032225B (en) * | 2020-09-24 | 2024-03-22 | 吉林大学青岛汽车研究院 | Wet type multi-disc brake with shifting fork force increasing mechanism and using method thereof |
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