CN204161337U - A kind of hydraulic braking system of Underground Mine truck - Google Patents
A kind of hydraulic braking system of Underground Mine truck Download PDFInfo
- Publication number
- CN204161337U CN204161337U CN201420601201.2U CN201420601201U CN204161337U CN 204161337 U CN204161337 U CN 204161337U CN 201420601201 U CN201420601201 U CN 201420601201U CN 204161337 U CN204161337 U CN 204161337U
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- China
- Prior art keywords
- energy storage
- braking system
- hydraulic braking
- communicated
- rear axle
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- Expired - Fee Related
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- 238000004146 energy storage Methods 0.000 claims abstract description 39
- 239000002828 fuel tank Substances 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a kind of hydraulic braking system of Underground Mine truck, comprise the propons drg and rear axle brake vi that are arranged on hydraulic braking system on mine truck car body and be integrated on front-rear axle, described hydraulic braking system comprises fuel tank, gear type pump, prefill valve, foot brake valves, the first energy storage, the second energy storage, relay valve, pressure relay.The hydraulic braking system that the utility model provides adds relay valve, very large oil stream can be supplied to rear axle brake vi by relay valve in a short period of time, the braking of rear axle brake vi is made to be ahead of the braking of propons drg, namely trailing wheel adhesive ability is greater than front-wheel adhesive ability, namely front-wheel not locking and rear lock drags cunning, both the requirement of stopping distance had been met, obtain again more satisfactory brake fluid pressure, the brakig force distribution of forward and backward drg can also be made comparatively even, improve the reliability of brake system and the stationarity of braking.
Description
Technical field
The utility model belongs to hydraulic braking system technical field, particularly relates to a kind of hydraulic braking system of Underground Mine truck.
Background technology
The brake system of Underground Mine truck 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: (1) front and rear wheel brake is braked simultaneously, rear lock slippage can not be ensured completely, if front-wheel first starts locking slippage, then rear lock drags cunning, at this moment the braking force of front-wheel brake can not be transformed into ground braking force completely due to the restriction by attachment condition, reduces the efficiency of brake system; (2) can not obtain desirable brake fluid pressure, the brakig force distribution of front and back drg is uneven, and safe stopping distance is long.
Utility model content
Technical problem to be solved in the utility model provides a kind of hydraulic braking system that can effectively make the braking of rear axle brake vi be ahead of the Underground Mine truck of propons drg for shortcoming of the prior art, improve the reliability of brake system and the stationarity of braking, make the brakig force distribution of forward and backward drg comparatively even simultaneously.
Following technical scheme is adopted for solving technical matters of the present utility model:
A kind of hydraulic braking system of Underground Mine truck, comprise the propons drg and rear axle brake vi that are arranged on hydraulic braking system on mine truck car body and be integrated on front-rear axle, described hydraulic braking system comprises fuel tank, gear type pump, prefill valve, foot brake valves, first energy storage, second energy storage, relay valve, the oil suction of described gear type pump is communicated with fuel tank, 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, described first energy storage is communicated with the first pressure oil port of foot brake valves, first actuator port of described foot brake valves is communicated with the control port of relay valve, the actuator port of described relay valve is communicated with rear axle brake vi, second actuator port of described prefill valve is communicated with the second energy storage, described second energy storage is communicated with the second pressure oil port of foot brake valves, second actuator port of described foot brake valves is communicated with propons drg, and the first pressure oil port of foot brake valves is communicated with fuel tank with the second pressure oil port of foot brake valves.
The pressure relay mouth Bonding pressure relay of described prefill valve.
The hydraulic braking system that the utility model provides adds relay valve, and very large oil stream can be supplied to rear axle brake vi by relay valve in a short period of time, makes the braking of rear axle brake vi be ahead of the braking of propons drg.Namely trailing wheel adhesive ability is greater than front-wheel adhesive ability, namely front-wheel not locking and rear lock drags cunning, has both met the requirement of stopping distance, has obtained again more satisfactory brake fluid pressure, the brakig force distribution of forward and backward drg can also be made comparatively even.Improve the reliability of brake system and the stationarity of braking.
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, a kind of hydraulic braking system of Underground Mine truck, comprise the propons drg 11 and rear axle brake vi 9 that are arranged on hydraulic braking system on mine truck 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, first energy storage 5, pressure relay 6, foot brake valves 7, relay valve 8.The oil suction of gear type pump 2 is connected by high pressure hose with fuel tank 1, and the pressure oil port of gear type pump 2 is connected by high pressure hose with the pressure oil port P of prefill valve 3.First actuator port A1 of prefill valve 3 is connected by high pressure hose with the first energy storage 4, first energy storage 4 is connected by high pressure hose with the first pressure oil port 1.1 of foot brake valves 7, first actuator port 2.1 of foot brake valves 7 is connected by high pressure hose with the control port a4 of relay valve 8, and the actuator port a2 of relay valve 8 is connected by high pressure hose with rear axle brake vi 9; Second actuator port A2 of prefill valve 3 is connected by high pressure hose with the second energy storage 5, second energy storage 5 is connected by high pressure hose with the second pressure oil port 1.2 of foot brake valves 7, second actuator port 2.2 of foot brake valves 7 is connected by high pressure hose with propons drg 11, and the first return opening 5.1 of foot brake valves 7 is connected by high pressure hose with fuel tank 1 with the second return opening 5.2 of foot brake valves 7.The pressure relay mouth SW Bonding pressure relay 6 of prefill valve 3.
Wherein the first actuator port A1 of prefill valve 3, the first energy storage 4, the first pressure oil port 1.1 of foot brake valves 7, the pressure oil port a1 of relay valve 8 are interconnected by two tee connections.
Wherein the second pressure oil port 1.2 of the second actuator port A1 of prefill valve 3, the second energy storage 5, foot brake valves 7 is interconnected by tee connection.
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, when prescribing a time limit under the first energy storage 4 and the second energy storage 5 pressure drop to pressure setting, prefill valve 3 topping up again.
When mine truck is braked, step on foot brake valves 7, the first pressure oil port 1.1 of foot brake valves 7 and the second pressure oil port 1.2 of foot brake valves 7 are connected respectively with the first actuator port 2.1 of foot brake valves 7 and the second actuator port 2.2 of foot brake valves 7.The pressure oil of the first energy storage 4 enters the control port a4 of relay valve 8 by the actuator port 2.1 of foot brake valves 7, the pressure oil port a1 of the relay valve 8 and actuator port a2 of relay valve 8 connects, what the pressure oil of the first energy storage 4 was quick, a large amount of enters rear axle brake vi 9, the pressure oil of energy storage 5 enters drg 11 by the second actuator port 2.2 of foot brake valves 7 simultaneously, and drg implements brake action.
End of braking, the pedal of foot brake valves 7 unclamps, and the pressure oil of the control port a4 of relay valve 8 passes through the first return opening 5.1 oil sump tank of foot valve 7.The pressure oil of drg 9 passes through the direct oil sump tank 1 of return opening a5 of relay valve 8.The pressure oil of drg 11 passes through the second return opening 5.2 oil sump tank 1 of foot valve 7.
The pressure of the first energy storage 4 and the second energy storage 5 monitored by pressure relay 6.
Prefill valve 3 is monitored the first energy storage 4 and the second energy storage 5 pressure, is controlled the topping up speed of the first energy storage 4 and the second energy storage 5, and automatically to its topping up, the pressure of the first energy storage 4 and the second energy storage 5 is made to remain within the scope of setting, thus ensure that the pressure of brake system is in certain scope, and avoid high pressure kicks, reduce heat producing losses.
The braking that foot brake valves 7 is used for controlling propons drg 11 and rear axle brake vi 9 with declutch.
Very large oil stream can be supplied to drg by relay valve 8 in a short period of time.
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 Underground Mine truck, comprise the propons drg and rear axle brake vi that are arranged on hydraulic braking system on mine truck 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), foot brake valves (7), first energy storage (4), second energy storage (5), relay valve (8), the oil suction of described gear type pump (2) is communicated with fuel tank (1), the pressure oil port of described gear type pump (2) is communicated with the pressure oil port of prefill valve (3), first actuator port of described prefill valve (3) is communicated with the first energy storage (4), described first energy storage (4) is communicated with the first pressure oil port of foot brake valves (7), first actuator port of described foot brake valves (7) is communicated with the control port of relay valve (8), the actuator port of described relay valve (8) is communicated with rear axle brake vi (9), second actuator port of described prefill valve (3) is communicated with the second energy storage (5), described second energy storage (5) is communicated with the second pressure oil port of foot brake valves (7), second actuator port of described foot brake valves (7) is communicated with propons drg (11), and the first pressure oil port of foot brake valves (7) is communicated with fuel tank (1) with the second pressure oil port of foot brake valves (7).
2. the hydraulic braking system of a kind of Underground Mine truck according to claim 1, is characterized in that: pressure relay mouth (SW) Bonding pressure relay (6) of described prefill valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601201.2U CN204161337U (en) | 2014-10-17 | 2014-10-17 | A kind of hydraulic braking system of Underground Mine truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601201.2U CN204161337U (en) | 2014-10-17 | 2014-10-17 | A kind of hydraulic braking system of Underground Mine truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204161337U true CN204161337U (en) | 2015-02-18 |
Family
ID=52535052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420601201.2U Expired - Fee Related CN204161337U (en) | 2014-10-17 | 2014-10-17 | A kind of hydraulic braking system of Underground Mine truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204161337U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004824A (en) * | 2016-05-26 | 2016-10-12 | 王付民 | Automatic water dripping system for vehicle braking |
| CN106184169A (en) * | 2016-08-10 | 2016-12-07 | 广西柳工机械股份有限公司 | Engineering machinery hydraulic brakes |
| 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 |
| CN111469825A (en) * | 2020-04-07 | 2020-07-31 | 中国煤炭科工集团太原研究院有限公司 | Full-hydraulic braking efficiency sequential distribution system of mining rubber-tyred vehicle |
| WO2023284325A1 (en) * | 2021-07-16 | 2023-01-19 | 上海三一重机股份有限公司 | Hydraulic braking system and operating machine |
-
2014
- 2014-10-17 CN CN201420601201.2U patent/CN204161337U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004824A (en) * | 2016-05-26 | 2016-10-12 | 王付民 | Automatic water dripping system for vehicle braking |
| CN106004824B (en) * | 2016-05-26 | 2019-05-24 | 海门卡汶纺织品有限公司 | Vehicle brake automatic water-dropping system |
| CN106184169A (en) * | 2016-08-10 | 2016-12-07 | 广西柳工机械股份有限公司 | Engineering machinery hydraulic brakes |
| 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 |
| CN111469825A (en) * | 2020-04-07 | 2020-07-31 | 中国煤炭科工集团太原研究院有限公司 | Full-hydraulic braking efficiency sequential distribution system of mining rubber-tyred vehicle |
| WO2023284325A1 (en) * | 2021-07-16 | 2023-01-19 | 上海三一重机股份有限公司 | Hydraulic braking system and operating machine |
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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 |