CN204161339U - The hydraulic braking system of a kind of pair of brake activation valve - Google Patents
The hydraulic braking system of a kind of pair of brake activation valve Download PDFInfo
- Publication number
- CN204161339U CN204161339U CN201420601136.3U CN201420601136U CN204161339U CN 204161339 U CN204161339 U CN 204161339U CN 201420601136 U CN201420601136 U CN 201420601136U CN 204161339 U CN204161339 U CN 204161339U
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- communicated
- valve
- energy storage
- pressure oil
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- 230000004913 activation Effects 0.000 title claims abstract description 41
- 238000004146 energy storage Methods 0.000 claims abstract description 42
- 210000001699 lower leg Anatomy 0.000 claims abstract description 32
- 239000002828 fuel tank Substances 0.000 claims abstract description 11
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
A hydraulic braking system for pair brake activation valve, comprise hydraulic braking system and drg, gear type pump is communicated with fuel tank, and gear type pump is communicated with prefill valve; First actuator port of prefill valve is communicated with the first energy storage, and the first energy storage is communicated with the first pressure oil port of crus secunda brake activation valve with the first pressure oil port of the first foot brake valves; Second actuator port of prefill valve is communicated with the second energy storage, and the second energy storage is communicated with the second pressure oil port of crus secunda brake activation valve with the second pressure oil port of the first foot brake valves; The pressure relay mouth of prefill valve is communicated with pressure relay, first actuator port of the first foot brake valves is communicated with rear axle brake vi with the first actuator port of crus secunda brake activation valve, and the second actuator port of the first foot brake valves is communicated with propons drg with the second actuator port of crus secunda brake activation valve.The hydraulic braking system that the utility model provides adds a foot brake valves, makes maintenance of underground car realize bi-directional braking, improves the traveling comfort that maintenance of underground car is driven.
Description
Technical field
The utility model belongs to hydraulic braking system, particularly relates to a kind of hydraulic braking system of two brake activation valves of maintenance of underground car.
Background technology
The brake system of maintenance of underground car is primarily of drg and hydraulic braking system two parts composition, and brake system is generally made up of gear type pump, prefill valve, foot brake valves and fuel tank.There is following shortcoming in this brake mode: the operating condition due to down-hole does not allow vehicle to turn around to travel, and when reverse gear travels, needs driver later to drive.Do not meet the principle of ergonomics.
Utility model content
Technical problem to be solved in the utility model is the hydraulic braking system providing a kind of pair of brake activation valve for shortcoming of the prior art, and object is the traveling comfort driven to improve underground vehicle.
For achieving the above object, the technical scheme that the utility model is taked is:
The hydraulic braking system of a kind of pair of brake activation valve, the drg comprising the hydraulic braking system on maintenance of underground car car body and be integrated on front-rear axle, described hydraulic braking system comprises fuel tank, gear type pump, prefill valve, the first energy storage, the second energy storage, pressure relay, the first foot brake valves, crus secunda brake activation valve, the oil suction of described gear type pump is communicated with fuel tank, and the pressure oil port of described gear type pump is communicated with the pressure oil port of prefill valve; First actuator port of described prefill valve is communicated with the first energy storage, and described first energy storage is communicated with the first pressure oil port of crus secunda brake activation valve with the first pressure oil port of the first foot brake valves; Second actuator port of described prefill valve is communicated with the second energy storage, and described second energy storage is communicated with the second pressure oil port of crus secunda brake activation valve with the second pressure oil port of the first foot brake valves; The secondary hydraulic fluid port of described prefill valve is communicated with fuel tank with the return opening of prefill valve; The pressure relay mouth of described prefill valve is communicated with pressure relay, first actuator port of described first foot brake valves is communicated with rear axle brake vi with the first actuator port of crus secunda brake activation valve, and the second actuator port of described first foot brake valves is communicated with propons drg with the second actuator port of crus secunda brake activation valve.
Be interconnected by two tee connections between first pressure oil port of the first actuator port of described prefill valve, the first energy storage, the first foot brake valves, the pressure oil port of crus secunda brake activation valve; The work second of described prefill valve makes hydraulic fluid port, the second energy storage, the second pressure oil port of the first foot brake valves, the second pressure oil port of crus secunda brake activation valve are interconnected by two tee connections.
The hydraulic braking system that the utility model provides adds a foot brake valves, makes maintenance of underground car realize bi-directional braking, improves the traveling comfort that maintenance of underground car is driven.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing thereof, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, the hydraulic braking system of a kind of pair of brake activation valve, the drg comprising the hydraulic braking system on maintenance of underground car car body and be integrated on front-rear axle, hydraulic braking system comprises fuel tank 1, gear type pump 2, prefill valve 3, first energy storage 4, second energy storage 5, pressure relay 6, first foot brake valves 7, crus secunda brake activation valve 8, rear axle brake vi 9, propons drg 11, the oil suction of gear type pump 2 is communicated with by high pressure hose with fuel tank 1, and the pressure oil port of gear type pump 2 is communicated with the pressure oil port P of prefill valve 3; First actuator port A1 of prefill valve is communicated with by high pressure hose with the first energy storage 4, and the first energy storage 4 is communicated with by high pressure hose with the first pressure oil port 3.1 of crus secunda brake activation valve 8 with the first pressure oil port 1.1 of the first foot brake valves 7; Second actuator port A2 of prefill valve is communicated with by high pressure hose with the second energy storage 5, and the second energy storage 5 is communicated with by high pressure hose with the second pressure oil port 3.2 of crus secunda brake activation valve 8 with the second pressure oil port 1.2 of the first foot brake valves 7; The secondary hydraulic fluid port O of prefill valve is communicated with fuel tank 1 with the oil return inlet T of prefill valve 3; The pressure relay mouth SW of prefill valve is communicated with pressure relay 6, first actuator port 2.1 of the first foot brake valves 7 is communicated with by high pressure hose with rear axle brake vi 9 with the first actuator port 4.1 of crus secunda brake activation valve 8, and the second actuator port 2.2 of the first foot brake valves 7 is communicated with by high pressure hose with propons drg 11 with the second actuator port 4.2 of crus secunda brake activation valve 8.
Be interconnected by two tee connections between the pressure oil port 3.1 of the first actuator port A1 of prefill valve, the first pressure oil port 1.1 of the first energy storage 4, first foot brake valves, crus secunda brake activation valve.
The work second of prefill valve makes hydraulic fluid port A2, the second pressure oil port 1.2 of the second energy storage 5, first foot brake valves, the second pressure oil port 3.2 of crus secunda brake activation valve are interconnected by two tee connections.
The pressure oil that gear type pump 2 exports gives the first energy storage 4 and the second energy storage 5 topping up by prefill valve 3, when the first energy storage 4 and the second energy storage 5 pressure reach capping, prefill valve 3 cuts out, under the first energy storage 4 and the second energy storage 5 drop to pressure setting in limited time, prefill valve 3 topping up again.
When maintenance of underground car forward travel is braked, step on the first pressure oil port 1.1 of the first foot brake valves 7, first foot brake valves 7 and the second pressure oil port 1.2 and the first actuator port 2.1 and the second actuator port 2.2 and connect respectively.The pressure oil of the first energy storage 4 enters rear axle brake vi 9 by the first foot brake valves 7, and the pressure oil of the second energy storage 5 enters propons drg 11 by the first foot brake valves 7 simultaneously, and drg implements brake action.
When maintenance of underground car backward going is braked, step on crus secunda brake activation valve 8, the first pressure oil port 3.1 of crus secunda brake activation valve 8 and the second pressure oil port 3.2 and the first actuator port 4.1 and the second actuator port 4.2 are connected respectively.The pressure oil of the first energy storage 4 enters rear axle brake vi 9 by crus secunda brake activation valve 8, and the pressure oil of the second energy storage 5 enters propons drg 11 by crus secunda brake activation valve 8 simultaneously, and drg implements brake action.
End of braking, the pedal of the first foot brake valves 7 or crus secunda brake activation valve 8 unclamps, and rear axle brake vi 9 and propons drg 11 pressure oil are by the return opening of the first foot brake valves 7 and the direct oil sump tank 1 of return opening of crus secunda brake activation valve 8.
The pressure of energy storage monitored by pressure relay 6, ensures the normal work of brake system.
Prefill valve 3 is monitored energy storage pressure, is controlled the topping up speed of energy storage, and automatically to its topping up, the pressure of energy storage is remained within the scope of setting, thus ensures that the pressure of brake system is in certain scope.And avoid high pressure kicks, reduce heat producing losses.
First foot brake valves 7 and crus secunda brake activation valve 8 be used for control brake braking with declutch.
Above-described is only preferred embodiment of the present utility model, does not limit to the utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, other equivalent modifications and improvement can also be made, all can realize the purpose of this utility model, all should be considered as protection domain of the present utility model.
Claims (2)
1. the hydraulic braking system of a two brake activation valve, the drg comprising the hydraulic braking system on maintenance of underground car car body and be integrated on front-rear axle, it is characterized in that: described hydraulic braking system comprises fuel tank (1), gear type pump (2), prefill valve (3), the first energy storage (4), the second energy storage (5), pressure relay (6), the first foot brake valves (7), crus secunda brake activation valve (8), the oil suction of described gear type pump (2) is communicated with fuel tank (1), and the pressure oil port of described gear type pump (2) is communicated with the pressure oil port (P) of prefill valve (3); First actuator port (A1) of described prefill valve is communicated with the first energy storage (4), and described first energy storage (4) is communicated with first pressure oil port (3.1) of crus secunda brake activation valve with first pressure oil port (1.1) of the first foot brake valves; Second actuator port (A2) of described prefill valve is communicated with the second energy storage (5), and described second energy storage (5) is communicated with second pressure oil port (3.2) of crus secunda brake activation valve with second pressure oil port (1.2) of the first foot brake valves; The secondary hydraulic fluid port (O) of described prefill valve is communicated with fuel tank (1) with the return opening (T) of prefill valve (3); The pressure relay mouth (SW) of described prefill valve is communicated with pressure relay (6), first actuator port (2.1) of described first foot brake valves is communicated with rear axle brake vi (9) with first actuator port (4.1) of crus secunda brake activation valve, and second actuator port (2.2) of described first foot brake valves is communicated with propons drg (11) with second actuator port (4.2) of crus secunda brake activation valve.
2. the hydraulic braking system of a kind of pair of brake activation valve according to claim 1, is characterized in that: be interconnected by two tee connections between first pressure oil port (1.1) of first actuator port (A1) of described prefill valve, the first energy storage (4), the first foot brake valves, the pressure oil port (3.1) of crus secunda brake activation valve; The work second of described prefill valve makes hydraulic fluid port (A2), the second energy storage (5), second pressure oil port (1.2) of the first foot brake valves, second pressure oil port (3.2) of crus secunda brake activation valve are interconnected by two tee connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601136.3U CN204161339U (en) | 2014-10-17 | 2014-10-17 | The hydraulic braking system of a kind of pair of brake activation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601136.3U CN204161339U (en) | 2014-10-17 | 2014-10-17 | The hydraulic braking system of a kind of pair of brake activation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204161339U true CN204161339U (en) | 2015-02-18 |
Family
ID=52535054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420601136.3U Expired - Fee Related CN204161339U (en) | 2014-10-17 | 2014-10-17 | The hydraulic braking system of a kind of pair of brake activation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204161339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624950A (en) * | 2018-12-11 | 2019-04-16 | 中联重科股份有限公司 | Brake control oil circuit, tractor front axle brake control system and tractor |
| CN112810594A (en) * | 2018-12-21 | 2021-05-18 | 常州爱上学教育科技有限公司 | Vehicle with high safety vehicle brake device |
-
2014
- 2014-10-17 CN CN201420601136.3U patent/CN204161339U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624950A (en) * | 2018-12-11 | 2019-04-16 | 中联重科股份有限公司 | Brake control oil circuit, tractor front axle brake control system and tractor |
| CN109624950B (en) * | 2018-12-11 | 2020-02-14 | 中联重科股份有限公司 | Brake control oil circuit, tractor front axle brake control system and tractor |
| CN112810594A (en) * | 2018-12-21 | 2021-05-18 | 常州爱上学教育科技有限公司 | Vehicle with high safety vehicle brake device |
| CN112810594B (en) * | 2018-12-21 | 2023-03-14 | 内蒙古必选机械制造有限公司 | Vehicle using vehicle brake device with high safety |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 |