CN110254411A - The stopping brake control device of vehicle - Google Patents
The stopping brake control device of vehicle Download PDFInfo
- Publication number
- CN110254411A CN110254411A CN201910563308.XA CN201910563308A CN110254411A CN 110254411 A CN110254411 A CN 110254411A CN 201910563308 A CN201910563308 A CN 201910563308A CN 110254411 A CN110254411 A CN 110254411A
- Authority
- CN
- China
- Prior art keywords
- mouth
- valve
- oil inlet
- solenoid valve
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
Abstract
A kind of stopping brake control device of vehicle, including accumulator, parking brake, shut-down hydraulic cylinder, hand-operated direction valve, pilot operated directional control valve, solenoid valve, pressure switch and power supply；The execution mouth A of pilot operated directional control valve is connected to the control mouth K of pressure switch；The execution mouth A of hand-operated direction valve is connected to the first oil inlet P 1 of solenoid valve, and the second oil inlet P 2 of solenoid valve is connected to accumulator, and the execution mouth A of solenoid valve is connected to the rod chamber of parking brake；Terminals K, pressure switch and the power supply of solenoid valve are sequentially connected electrically and are formed into a loop；When the control mouth K of pressure switch is passed through pressure oil, pressure switch is connected, and at this moment the terminals K of solenoid valve is obtained electric, and the second oil inlet P 2 of solenoid valve is communicated with mouth A is executed.Stopping brake automatically terminates when driving for the achievable vehicle extension forward gear of the present invention or retreating gear.
Description
Technical field
The present invention relates to a kind of vehicle, in particular to the stopping brake control device of a kind of vehicle.
Background technique
The stopping brake control device of the vehicle of the prior art as shown in Fig. 2, include accumulator 31, parking brake 32,
Shut-down hydraulic cylinder 33 and hand-operated direction valve 34；Parking brake 32 includes several movable plates 32-1 and several stationary plates 32-2；It is dynamic
Piece 32-1 and the alternate arrangement of stationary plate 32-2；The left end of the piston rod 33-1 of shut-down hydraulic cylinder 33 offsets with movable plate 32-1 or phase point
From.When the rod chamber of shut-down hydraulic cylinder 33 is passed through pressure oil, the piston rod 33-1 of shut-down hydraulic cylinder 33 moves right and makes
Piece 32-1 is separated with stationary plate 32-2 phase, and vehicle is in Parking braking release state；When the rod chamber of shut-down hydraulic cylinder 33 is not passed through
When pressure oil, the piston rod 33-1 of shut-down hydraulic cylinder 33 is moved to the left and makes movable plate 32-1 and stationary plate 32-2 phase under the action of the spring
In conjunction with vehicle is in parking brake condition.The oil inlet P of hand-operated direction valve 34 is connected to accumulator 31, hand-operated direction valve 34
Mouth A is executed to be connected to the rod chamber of shut-down hydraulic cylinder 33.The oil outlet T of hand-operated direction valve 34 is communicated with the fuel tank on vehicle.When
When the pressure decline of accumulator 31, give accumulator 31 filling liquid by prefill valve by the hydraulic pump on vehicle.When vehicle starts running
When, need to release stopping brake, driver can operate hand-operated direction valve 34, make the oil inlet P of hand-operated direction valve 34 and execute mouth A
It communicates, the pressure oil in accumulator 31 reaches the rod chamber of shut-down hydraulic cylinder 33 through hand-operated direction valve 34, shut-down hydraulic cylinder 33
Piston rod moves right and separates movable plate 32-1 with stationary plate 32-2 phase, and vehicle is in Parking braking release state, and starting row
It sails.When vehicle needs to carry out stopping brake, hand-operated direction valve 34 is operated, the execution mouth A and oil outlet T of hand-operated direction valve 34 are made
It communicates, the pressure oil of the rod chamber of shut-down hydraulic cylinder 33 returns to fuel tank, shut-down hydraulic cylinder 33 through the oil outlet T of hand-operated direction valve 34
Piston rod be moved to the left under the action of the spring and make movable plate 32-1 in conjunction with stationary plate 32-2, vehicle is in stopping brake shape
State.Application No. is heavy forklift parking brake systems disclosed in 201020153354.7) by Chinese patent literature CN201633718U(
Background technique employed in stop device just belong to the stopping brake control device of above-mentioned vehicle.The prior art
Stopping brake control device hangs forward gear or retreating gear when driving in vehicle, and stopping brake cannot automatically terminate, and work as vehicle in this way
It starts running, and driver forgets to release stopping brake (communicating the oil inlet P of hand-operated direction valve 34 with mouth A is executed)
When, vehicle is still in parking brake condition, i.e., the movable plate 32-1 and stationary plate 32-2 of parking brake 32 are still in bonding state, at this moment
Vehicle, which starts running, will make movable plate 32-1 and stationary plate 32-2 accelerated wear test, and the service life of parking brake 32 will shorten.
Summary of the invention
It is an object of the invention to propose a kind of vehicle to hang forward gear or retreating gear, stopping brake can solve automatically when driving
The stopping brake control device of the vehicle removed.
In order to achieve the above objectives, the present invention adopts the following technical scheme that: a kind of stopping brake control device of vehicle, including
Accumulator, parking brake, shut-down hydraulic cylinder and hand-operated direction valve；The parking brake includes several movable plates and several
Stationary plate, and movable plate and the alternate arrangement of stationary plate；The shut-down hydraulic cylinder includes piston rod, the left end of the piston rod of shut-down hydraulic cylinder with
Movable plate offsets or mutually separates；The oil inlet P of the hand-operated direction valve is connected to accumulator.
It further include pilot operated directional control valve, solenoid valve, pressure switch and power supply；The execution mouth A and pressure of the pilot operated directional control valve
The control mouth K of switch is connected to；The execution mouth A of the hand-operated direction valve is connected to the first oil inlet P 1 of solenoid valve, solenoid valve
Second oil inlet P 2 is connected to accumulator, and the execution mouth A of solenoid valve is connected to the rod chamber of parking brake；The solenoid valve
Terminals K, pressure switch and power supply are sequentially connected electrically and are formed into a loop；When the control mouth K of pressure switch is passed through pressure oil, pressure
Power switch connection, at this moment the terminals K of solenoid valve is obtained electric, and the second oil inlet P 2 of solenoid valve is communicated with mouth A is executed；In use,
First oil inlet P 1 of the pilot operated directional control valve is connected to the execution mouth A of shift control valve to the oily channel of forward gear clutch
On, the second oil inlet P 2 of pilot operated directional control valve and the control mouth K of pilot operated directional control valve are both connected to the execution mouth B of shift control valve extremely
On the oily channel of retreating gear clutch；When the control mouth K of pilot operated directional control valve is passed through pressure oil, the second oil inlet of pilot operated directional control valve
Mouth P2 is communicated with mouth A is executed.
The present invention has following good effect: (1) executing mouth A and pressure switch due to pilot operated directional control valve of the invention
Control mouth K connection；The execution mouth A of hand-operated direction valve is connected to the first oil inlet P 1 of solenoid valve, the second oil inlet of solenoid valve
P2 is connected to accumulator, and the execution mouth A of solenoid valve is connected to the rod chamber of parking brake；The terminals K of solenoid valve, pressure are opened
It closes and power supply is sequentially connected electrically and is formed into a loop；When the control mouth K of pressure switch is passed through pressure oil, pressure switch is connected, this
When solenoid valve terminals K obtain electric, the second oil inlet P 2 of solenoid valve is communicated with mouth A is executed；In use, the of pilot operated directional control valve
One oil inlet P 1 is connected on the execution mouth A to the oily channel of forward gear clutch of shift control valve, and the second of pilot operated directional control valve
The oil for executing mouth B to retreating gear clutch that the control mouth K of oil inlet P 2 and pilot operated directional control valve is both connected to shift control valve is logical
On road, thus when driver hangs forward gear or retreating gear when driving, at this moment the oil inlet P of shift control valve is communicated with mouth A is executed
Or the oil inlet P of shift control valve with execute mouth B communicate, the pressure oil in accumulator enter forward gear clutch or retreating gear from
Clutch, at this moment the control mouth K of pilot operated directional control valve is not passed through pressure oil or the control mouth K of pilot operated directional control valve is passed through pressure oil, liquid
The first oil inlet P 1 for controlling reversal valve is communicated with execution mouth A or the second oil inlet P 2 of pilot operated directional control valve is communicated with mouth A is executed.It stores
The first oil inlet P 1 through pilot operated directional control valve enters pressure switch to execution mouth A of the pressure oil through shift control valve in energy device again
Execution mouth B of the pressure oil through shift control valve in control mouth K or accumulator again the second oil inlet P 2 through pilot operated directional control valve into
Enter the control mouth K of pressure switch, the control mouth K of pressure switch is passed through pressure oil, and pressure switch is connected, the terminals K of solenoid valve
It is electric, the second oil inlet P 2 of solenoid valve is communicated with execution mouth A, at this moment, pressure oil in accumulator through solenoid valve second into
Hydraulic fluid port P2 enters the rod chamber of shut-down hydraulic cylinder, and the piston rod of shut-down hydraulic cylinder moves right and separates dynamic and static plate mutually,
Vehicle is in Parking braking release state, i.e. driver hangs forward gear or retreating gear when driving, and stopping brake can automatically terminate,
In this way when vehicle starts to hang forward gear or retreating gear traveling and driver forgets to release stopping brake, vehicle can be in automatically to stop
Vehicle brake release state, the i.e. dynamic and static plate of parking brake in discrete state, dynamic and static plate would not accelerated wear test, stop
The service life of vehicle brake will improve.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure；
Fig. 2 is the schematic diagram of the stopping brake control device of the prior art；
Fig. 3 is the schematic diagram of the stopping device of the prior art；
Fig. 4 is the catenation principle figure of the present invention with the stopping device of the prior art.
Appended drawing reference in above-mentioned attached drawing is as follows: pilot operated directional control valve 1, solenoid valve 2, pressure switch 3, power supply 4, accumulator
31, parking brake 32, movable plate 32-1, stationary plate 32-2, shut-down hydraulic cylinder 33, piston rod 33-1, hand-operated direction valve 34, gear control
Valve 50 processed, control stick 50-1, forward gear clutch 51, retreating gear clutch 52.
Specific embodiment
Below in conjunction with attached drawing and the embodiment provided, the present invention is further illustrated.
As shown in Figure 1, a kind of stopping brake control device of vehicle, including accumulator 31, parking brake 32, parking liquid
Cylinder pressure 33 and hand-operated direction valve 34；The parking brake 32 includes several movable plates 32-1 and several stationary plates 32-2, and dynamic
Piece 32-1 and the alternate arrangement of stationary plate 32-2；The shut-down hydraulic cylinder 33 includes piston rod 33-1, the piston rod of shut-down hydraulic cylinder 33
The left end of 33-1 offsets with movable plate 32-1 or mutually separates；The oil inlet P of the hand-operated direction valve 34 is connected to accumulator 31.
It further include pilot operated directional control valve 1, solenoid valve 2, pressure switch 3 and power supply 4；Pressure switch 3 uses model DNM-
The pressure switch of 03P-100K-21B.The execution mouth A of the pilot operated directional control valve 1 is connected to the control mouth K of pressure switch 3；Institute
The execution mouth A for stating hand-operated direction valve 34 is connected to the first oil inlet P 1 of solenoid valve 2, the second oil inlet P 2 and the storage of solenoid valve 2
Energy device 31 is connected to, and the execution mouth A of solenoid valve 2 is connected to the rod chamber of parking brake 32；The terminals K of the solenoid valve 2, pressure
Power switch 3 and power supply 4 are sequentially connected electrically and are formed into a loop；When the control mouth K of pressure switch 3 is passed through pressure oil, pressure switch 3
It connects, at this moment the terminals K of solenoid valve 2 is obtained electric, and the second oil inlet P 2 of solenoid valve 2 is communicated with mouth A is executed；When pressure switch 3
Control mouth K when not being passed through pressure oil, pressure switch 3 disconnects, at this moment the terminals K power loss of solenoid valve 2, the of solenoid valve 2
One oil inlet P 1 is communicated with mouth A is executed.The oil outlet T of hand-operated direction valve 34 is communicated with the fuel tank on vehicle.As shown in figure 4, this
Invention when in use, needs to be used cooperatively with the stopping device of vehicle, and the stopping device of the prior art is as shown in figure 3, include gear
Level control valve 50, forward gear clutch 51, retreating gear clutch 52 and accumulator 31, shift control valve 50 include control stick 50-
1, the oil inlet P of shift control valve 50 is connected to the oil outlet of accumulator 31, the execution mouth A and forward gear of shift control valve 50 from
Clutch 51 is connected to, and the execution mouth B of shift control valve 50 is connected to retreating gear clutch 52, the control stick 50-1 of shift control valve 50
It is connect by flexible axle with the gear selector for being located at driver's cabin.When driver operation be located at driver's cabin gear selector, be allowed to
It hangs on forward gear, flexible axle drives the control stick 50-1 movement of shift control valve 50, makes the oil inlet P of shift control valve 50 and holds
Row mouth A is communicated, and the pressure oil in accumulator 31 enters forward gear clutch 51, and forward gear clutch 51 is in bonding state, is moved
In conjunction with advance shaft, vehicle can advance power axis.When the gear selector that driver's operation is located at driver's cabin is allowed to hang over retrogressing
It blocks, the oil inlet P of shift control valve 50 is communicated with mouth B is executed, and retreating gear clutch 52 is in bonding state, and line shaft is with after
Axis combination is moved back, vehicle can retreat.When driver operation be located at driver's cabin gear selector be allowed to hang in neutral gear, gear control
The oil inlet P of valve 50 processed is not communicated with execution mouth A and execution mouth B, and forward gear clutch 51 and retreating gear clutch 52 are located
In discrete state, vehicle can neither advance, and can not retreat.As shown in figure 4, in use, the first of the pilot operated directional control valve 1 into
Hydraulic fluid port P1 is connected on the execution mouth A to the oily channel of forward gear clutch 51 of shift control valve 50, i.e. the of pilot operated directional control valve 1
One oil inlet P 1 is communicated with the oily channel of execution mouth A to the forward gear clutch 51 of shift control valve 50.The of pilot operated directional control valve 1
The control mouth K of two oil inlet Ps 2 and pilot operated directional control valve 1 is both connected to the execution mouth B of shift control valve 50 to retreating gear clutch 52
Oily channel on；That is the control mouth K of the second oil inlet P 2 of pilot operated directional control valve 1 and pilot operated directional control valve 1 with shift control valve 50
The oily channel of execution mouth B to retreating gear clutch 52 communicate.When the control mouth K of pilot operated directional control valve 1 is passed through pressure oil, hydraulic control
Second oil inlet P 2 of reversal valve 1 is communicated with mouth A is executed.When the control mouth K of pilot operated directional control valve 1 is not passed through pressure oil, liquid
The first oil inlet P 1 for controlling reversal valve 1 is communicated with mouth A is executed.
Working principle of the present invention is as follows: when driver hangs forward gear when driving, the at this moment oil inlet P of shift control valve 50
It is communicated with mouth A is executed, the pressure oil in accumulator 31 enters forward gear clutch 51, and at this moment the control mouth K of pilot operated directional control valve 1 does not have
It is passed through pressure oil, the first oil inlet P 1 of pilot operated directional control valve 1 is communicated with mouth A is executed.Pressure oil in accumulator 31 is through gear
The first oil inlet P 1 through pilot operated directional control valve 1 enters the control mouth K of pressure switch 3, pressure switch to the execution mouth A of control valve 50 again
3 control mouth K is passed through pressure oil, and pressure switch 3 is connected, and the terminals K of solenoid valve 2 obtains electric, the second oil inlet P 2 of solenoid valve 2
It is communicated with mouth A is executed, at this moment, the pressure oil in accumulator 31 enters shut-down hydraulic cylinder 33 through the second oil inlet P 2 of solenoid valve 2
Rod chamber, the piston rod of shut-down hydraulic cylinder 33 moves right and separates movable plate 32-1 with stationary plate 32-2 phase, and vehicle, which is in, to stop
Vehicle brake release state, i.e. driver hang forward gear when driving, and stopping brake can automatically terminate, in this way before vehicle starts extension
Into gear traveling and when driver forgets to release stopping brake, vehicle can be in Parking braking release state, i.e. stopping brake automatically
The movable plate 32-1 and stationary plate 32-2 of device 32 in discrete state, movable plate 32-1 and stationary plate 32-2 would not accelerated wear test, stopping brake
The service life of device 32 will improve.
When driver hangs retreating gear when driving, at this moment the oil inlet P of shift control valve 50 is communicated with mouth B is executed, accumulator
Pressure oil in 31 enters retreating gear clutch 52, and at this moment the control mouth K of pilot operated directional control valve 1 is passed through pressure oil, pilot operated directional control valve 1
The second oil inlet P 2 with execute mouth A communicate.Execution mouth B of the pressure oil through shift control valve 50 in accumulator 31 is again through hydraulic control
Second oil inlet P 2 of reversal valve 1 enters the control mouth K of pressure switch 3, and the control mouth K of pressure switch 3 is passed through pressure oil, pressure
Switch 3 is connected, and the terminals K of solenoid valve 2 obtains electric, and the second oil inlet P 2 of solenoid valve 2 is communicated with execution mouth A, at this moment, accumulator
Pressure oil in 31 enters the rod chamber of shut-down hydraulic cylinder 33, the work of shut-down hydraulic cylinder 33 through the second oil inlet P 2 of solenoid valve 2
Stopper rod moves right and separates movable plate 32-1 with stationary plate 32-2 phase, and vehicle is in Parking braking release state, i.e. driver hangs
When driving, stopping brake can automatically terminate retreating gear, in this way when vehicle starts to hang retreating gear traveling and driver forgets to release
When stopping brake, vehicle can be in Parking braking release state, i.e. the movable plate 32-1 and stationary plate 32-2 of parking brake 32 automatically
In discrete state, movable plate 32-1 and stationary plate 32-2 would not accelerated wear test, the service life of parking brake 32 will improve.
When driver hangs neutral gear, oil inlet P and the execution mouth A and execution mouth B of shift control valve 50 are not communicated with, at this moment
The first oil inlet P 1 and the second oil inlet P 2 of pilot operated directional control valve 1 will not be passed through pressure oil, the execution mouth A of pilot operated directional control valve 1
There will not be pressure oil, the control mouth K of such pressure switch 3 there will not be pressure oil, and pressure switch 3 disconnects, at this moment, solenoid valve
2 terminals K power loss, the first oil inlet P 1 of solenoid valve 2 are communicated with mouth A is executed, and at this moment driver operates hand-operated direction valve 31,
It may be selected by carrying out stopping brake or Parking braking release.
Claims (1)
1. a kind of stopping brake control device of vehicle, including accumulator (31), parking brake (32), shut-down hydraulic cylinder (33)
With hand-operated direction valve (34)；The parking brake (32) includes several movable plates (32-1) and several stationary plates (32-2), and
Movable plate (32-1) and the alternate arrangement of stationary plate (32-2)；The shut-down hydraulic cylinder (33) includes piston rod (33-1), shut-down hydraulic cylinder
(33) left end of piston rod (33-1) offsets with movable plate (32-1) or mutually separates；The oil inlet P of the hand-operated direction valve (34)
It is connected to accumulator (31)；It is characterized by:
It further include pilot operated directional control valve (1), solenoid valve (2), pressure switch (3) and power supply (4)；Pilot operated directional control valve (1) is held
Row mouth A is connected to the control mouth K of pressure switch (3)；The first of the execution mouth A of the hand-operated direction valve (34) and solenoid valve (2)
Oil inlet P 1 is connected to, and the second oil inlet P 2 of solenoid valve (2) is connected to accumulator (31), the execution mouth A of solenoid valve (2) and parking
The rod chamber of brake (32) is connected to；Terminals K, pressure switch (3) and the power supply (4) of the solenoid valve (2) are sequentially connected electrically
And it is formed into a loop；When the control mouth K of pressure switch (3) is passed through pressure oil, pressure switch (3) is connected, at this moment solenoid valve (2)
Terminals K obtains electric, and the second oil inlet P 2 of solenoid valve (2) is communicated with mouth A is executed；In use, the of the pilot operated directional control valve (1)
One oil inlet P 1 is connected on the execution mouth A to the oily channel of forward gear clutch (51) of shift control valve (50), liquid controlled reversing
Second oil inlet P 2 of valve (1) and the control mouth K of pilot operated directional control valve (1) are both connected to the execution mouth B of shift control valve (50) extremely
On the oily channel of retreating gear clutch (52)；When the control mouth K of pilot operated directional control valve (1) is passed through pressure oil, pilot operated directional control valve (1)
The second oil inlet P 2 with execute mouth A communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563308.XA CN110254411A (en) | 2019-06-26 | 2019-06-26 | The stopping brake control device of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910563308.XA CN110254411A (en) | 2019-06-26 | 2019-06-26 | The stopping brake control device of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110254411A true CN110254411A (en) | 2019-09-20 |
Family
ID=67922028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910563308.XA Pending CN110254411A (en) | 2019-06-26 | 2019-06-26 | The stopping brake control device of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110254411A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1338971A (en) * | 1971-01-20 | 1973-11-28 | Bendix Corp | Hydraulic braking system |
| CN105774775A (en) * | 2016-04-28 | 2016-07-20 | 朱明德 | Vehicle door opening and parking brake control device |
| CN108482353A (en) * | 2018-05-05 | 2018-09-04 | 刘剑 | Parking brake device for vehicle |
| CN108909699A (en) * | 2018-08-25 | 2018-11-30 | 袁菊花 | The gear of vehicle and the linkage control device of stopping brake |
| CN109484382A (en) * | 2018-11-05 | 2019-03-19 | 刘剑 | The stopping brake control device of vehicle |
-
2019
- 2019-06-26 CN CN201910563308.XA patent/CN110254411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1338971A (en) * | 1971-01-20 | 1973-11-28 | Bendix Corp | Hydraulic braking system |
| CN105774775A (en) * | 2016-04-28 | 2016-07-20 | 朱明德 | Vehicle door opening and parking brake control device |
| CN108482353A (en) * | 2018-05-05 | 2018-09-04 | 刘剑 | Parking brake device for vehicle |
| CN108909699A (en) * | 2018-08-25 | 2018-11-30 | 袁菊花 | The gear of vehicle and the linkage control device of stopping brake |
| CN109484382A (en) * | 2018-11-05 | 2019-03-19 | 刘剑 | The stopping brake control device of vehicle |
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