CN103253253B - A kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system - Google Patents
A kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system Download PDFInfo
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- CN103253253B CN103253253B CN201310138403.8A CN201310138403A CN103253253B CN 103253253 B CN103253253 B CN 103253253B CN 201310138403 A CN201310138403 A CN 201310138403A CN 103253253 B CN103253253 B CN 103253253B
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Abstract
The invention discloses a kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system, comprise fuel tank, filter, Hydraulic Pump, by pass valve, prefill valve, handle braking valve, one-level energy storage, shutoff valve, secondary energy storage, double loop treadle valve, check valve, shuttle valve, flow amplifier, variable-dis-placement motor and the plug-in drg of variable-dis-placement motor.The present invention conveniently can realize the driving of split type vehicle wet type and braking during standstill, achieve the arbitrary chaufeur control that vehicle driving is braked of two chaufeur any times, response time is fast, stopping distance is short, two-stage pressurizing structure, safe and reliable, the wet braking of this all-hydraulic control is suitable for using on the vehicle of coal mine roadway operation.
Description
Technical field
The present invention relates to technical field of hydraulic, particularly one split type multi-axial cord hydraulic pressure bogie hydraulic brake system.
Background technology
At present, split type multi-axial cord hydraulic pressure bogie is large with its load carrying ability, from row cutting, motion flexibly and the advantage widespread use in the operating mode such as coal mine roadway and tunnel excavation such as little that takes up room.Split type multi-axial cord hydraulic pressure bogie is normally by former and later two chaufeur Collaborative Control propulsion source car and multi-axial cord flat truck, this vehicle mainly contains following two kinds of service brake modes: one is not additional configuration brake system, only utilizes the inertial properties of Closed Hydraulic Driving system to brake; Another kind utilizes common hydraulic brake valve to control wet brakign mechanism to brake.These two kinds of brake mode are all operated by single chaufeur, when non-brake chaufeur finds that danger has little time to remind braking, are easy to something unexpected happened, produce potential safety hazard thus; In addition, two kinds of brake mode response times are longer, and braking is apart from large, and safe reliability is poor.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of New type detachable multi-axial cord hydraulic pressure bogie hydraulic brake system is provided, this system can conveniently realize braking during standstill and service brake, wherein, two chaufeurs all can realize the control to service brake, and two-stage energy storage topping up structure and the front flow amplifier arranged of wet brakign mechanism fully ensure that the safe and reliable of service brake.
In order to solve the technical matters of above-mentioned existence, the present invention is achieved by the following technical solutions:
A kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system, comprises fuel tank, filter, Hydraulic Pump, by pass valve, prefill valve, handle braking valve, one-level energy storage, shutoff valve, secondary energy storage, double loop treadle valve, check valve, shuttle valve, flow amplifier, variable-dis-placement motor and the plug-in drg of variable-dis-placement motor;
The oil inlet of described Hydraulic Pump is connected with fuel tank by filter, and its outlet is connected with by pass valve, and described hydraulic pressure delivery side of pump is connected with the oil inlet of prefill valve with handle braking valve respectively;
The plug-in drg of described variable-dis-placement motor is arranged on variable-dis-placement motor, the plug-in drg of variable-dis-placement motor has braking during standstill hydraulic fluid port and service brake hydraulic fluid port;
The outlet of described handle braking valve is connected with the braking during standstill hydraulic fluid port of the plug-in drg of variable-dis-placement motor;
The outlet of described prefill valve is connected with the oil inlet of double loop treadle valve, and be connected with one-level energy storage between the outlet of described prefill valve and the oil inlet of double loop treadle valve, the outlet of described prefill valve is connected with the oil inlet of flow amplifier;
The oil inlet of described flow amplifier is connected with secondary energy storage, and the outlet of described flow amplifier is connected with the service brake hydraulic fluid port of the plug-in drg of variable-dis-placement motor;
The outlet of described double loop treadle valve is through the control mouth of shuttle valve connection traffic amplifier; Make the delivery pressure of double loop treadle valve through the control mouth of the more laggard inbound traffics amplifier of shuttle valve, in vehicle travels, arbitrary driver's operation double loop treadle valve can both produce service brake like this;
The oil inlet of described one-level energy storage, secondary energy storage is all connected with the shutoff valve of normally open;
Described prefill valve, handle braking valve, double loop treadle valve are all connected with fuel tank with the return opening of flow amplifier;
Between the oil inlet of described prefill valve and outlet, check valve is installed.This is the quick topping up for fully ensureing in prefill valve fault or continuous braking procedure.
Adopt two-stage energy storage can ensure that vehicle is still enough to carry out repeatedly service brake in the out-of-run situation of Hydraulic Pump.
Be braking during standstill state when handle braking valve cuts off the high pressure oil of entering variable motor plug-in drg braking during standstill hydraulic fluid port, fluid enters in one-level energy storage and secondary energy storage through prefill valve and completes topping up, the outlet oil sump tank again through prefill valve after topping up completes; When handle braking valve events removes braking during standstill, during one of them double loop treadle valve action, the high pressure oil in one-level energy storage enters in the treadle valve of double loop, and the control mouth entering flow amplifier through shuttle valve carries out service brake.
Owing to adopting technique scheme, one provided by the invention split type multi-axial cord hydraulic pressure bogie hydraulic brake system compared with prior art, has so beneficial effect:
(1) the present invention conveniently can realize braking during standstill and the service brake of relatively independent two cars, and front and back two chaufeur all can realize the control to vehicle driving braking at any time;
(2) two-stage energy storage topping up structure ensures the steady parking that also can realize vehicle in the out-of-work situation of Hydraulic Pump;
(3) flow amplifier arranged before drg fully ensure that the quick response of braking, as long as increase the quantity of flow amplifier and drg in multi-axial cord hydraulic pressure bogie, just can realize the desirable service brake of large-tonnage vehicle;
(4) the accumulator pressurizing structure composed in parallel by check valve and prefill valve, safe and reliable;
(5) wet braking of all-hydraulic control is preferably uses on the vehicle of coal mine roadway operation.
Accompanying drawing explanation
Fig. 1 is the hydraulic diagram of a kind of split type multi-axial cord hydraulic pressure bogie hydraulic braking control system of the present invention.
Wherein: 1, fuel tank, 2, filter, 3, Hydraulic Pump, 4, by pass valve, 5, prefill valve, 6, handle braking valve, 7, one-level energy storage, 8, shutoff valve, 9, secondary energy storage, 10, double loop treadle valve, 11, check valve, 12, charging water gauge, 13, shuttle valve, 14, flow amplifier, 15, variable-dis-placement motor, 16, the plug-in drg of variable-dis-placement motor, 17, tire, D1, braking during standstill hydraulic fluid port, D2, service brake hydraulic fluid port, A, variable-dis-placement motor working hole, B, variable-dis-placement motor working hole, C, variable-dis-placement motor leakage hole.
Specific embodiments
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, a kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system of the present invention, comprise fuel tank 1, filter 2, Hydraulic Pump 3, by pass valve 4, prefill valve 5, handle braking valve 6, one-level energy storage 7, shutoff valve 8, secondary energy storage 9, double loop treadle valve 10, check valve 11, shuttle valve 13, flow amplifier 14, variable-dis-placement motor 15 and the plug-in drg 16 of variable-dis-placement motor, the oil inlet of described Hydraulic Pump 3 is connected with fuel tank 1 by filter 2, the outlet of described Hydraulic Pump 3 is connected with the by pass valve 4 of safety guard-safeguard effect, the outlet of described Hydraulic Pump 3 is connected with the oil inlet of prefill valve 5 with handle braking valve 6 respectively, the outlet of described handle braking valve 6 is connected with the braking during standstill hydraulic fluid port D1 of the plug-in drg 16 of variable-dis-placement motor, the outlet of described prefill valve 5 is connected with the oil inlet of double loop treadle valve 10, one-level energy storage 7 is connected with between the outlet of described prefill valve 5 and the oil inlet of double loop treadle valve 10, the outlet of described prefill valve 5 is connected with the oil inlet of flow amplifier 14, the accumulator of described flow amplifier 14 is connected with secondary energy storage 9, the outlet of described flow amplifier 14 is connected with the service brake hydraulic fluid port D2 of the plug-in drg 16 of variable-dis-placement motor, the outlet of described double loop treadle valve 10 is through the control mouth of shuttle valve 13 connection traffic amplifier 14, during vehicle travels, arbitrary driver's operation double loop treadle valve 10 can both service brake, the oil inlet of described energy storage all connects the shutoff valve 8 of promising normally open, described prefill valve 5, handle braking valve 6, double loop treadle valve 10 is all connected with fuel tank 1 with the return opening of flow amplifier 14.
The plug-in drg 16 of described variable-dis-placement motor is arranged on variable-dis-placement motor 15, the plug-in drg 16 of variable-dis-placement motor has braking during standstill hydraulic fluid port D1 and service brake hydraulic fluid port D2.
The oil inlet of described one-level energy storage, secondary energy storage is all connected with the shutoff valve of normally open; In the out-of-run situation of Hydraulic Pump 3, two-stage energy storage still can make vehicle be enough to carry out repeatedly the braking of stop and running car.
Between the oil inlet of described prefill valve 5 and outlet, check valve 11 is installed, fully ensures the quick topping up in prefill valve 5 fault or continuous braking procedure.
Be braking during standstill state when described handle braking valve 6 cuts off the high pressure oil of entering variable motor plug-in drg 16 braking during standstill hydraulic fluid port D1, fluid enters in one-level energy storage 7 and secondary energy storage 9 through prefill valve 5 and completes topping up, the outlet oil sump tank 1 again through prefill valve 5 after topping up completes; When braking during standstill is removed in handle braking valve 6 action, during one of them double loop treadle valve 10 action, the high pressure oil in one-level energy storage 7 enters in double loop treadle valve 10, and the control mouth entering flow amplifier 14 through shuttle valve 13 carries out service brake.
Claims (1)
1. a split type multi-axial cord hydraulic pressure bogie hydraulic brake system, is characterized in that: comprise fuel tank, filter, Hydraulic Pump, by pass valve, prefill valve, handle braking valve, one-level energy storage, shutoff valve, secondary energy storage, double loop treadle valve, check valve, shuttle valve, flow amplifier, variable-dis-placement motor and the plug-in drg of variable-dis-placement motor;
The oil inlet of described Hydraulic Pump is connected with fuel tank by filter, and its outlet is connected with by pass valve, and described hydraulic pressure delivery side of pump is connected with the oil inlet of prefill valve with handle braking valve respectively;
The plug-in drg of described variable-dis-placement motor is arranged on variable-dis-placement motor, the plug-in drg of variable-dis-placement motor has braking during standstill hydraulic fluid port and service brake hydraulic fluid port;
The outlet of described handle braking valve is connected with the braking during standstill hydraulic fluid port of the plug-in drg of variable-dis-placement motor;
The outlet of described prefill valve is connected with the oil inlet of double loop treadle valve, and be connected with one-level energy storage between the outlet of described prefill valve and the oil inlet of double loop treadle valve, the outlet of described prefill valve is connected with the oil inlet of flow amplifier;
The oil inlet of described flow amplifier is connected with secondary energy storage, and the outlet of described flow amplifier is connected with the service brake hydraulic fluid port of the plug-in drg of variable-dis-placement motor;
The outlet of described double loop treadle valve is through the control mouth of shuttle valve connection traffic amplifier;
The oil inlet of described one-level energy storage, secondary energy storage is all connected with the shutoff valve of normally open;
Described prefill valve, handle braking valve, double loop treadle valve are all connected with fuel tank with the return opening of flow amplifier;
Between the oil inlet of described prefill valve and outlet, check valve is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310138403.8A CN103253253B (en) | 2013-04-19 | 2013-04-19 | A kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310138403.8A CN103253253B (en) | 2013-04-19 | 2013-04-19 | A kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system |
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| CN103253253A CN103253253A (en) | 2013-08-21 |
| CN103253253B true CN103253253B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310138403.8A Expired - Fee Related CN103253253B (en) | 2013-04-19 | 2013-04-19 | A kind of split type multi-axial cord hydraulic pressure bogie hydraulic brake system |
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| CN (1) | CN103253253B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632728A (en) * | 2014-12-08 | 2015-05-20 | 燕山大学 | Automatic coupling liquid filling system for multiple executing mechanisms |
| CN106314405B (en) * | 2016-09-17 | 2023-03-14 | 西安科技大学 | Hydraulic braking system and method for large-tonnage mining vehicle |
| CN108859779B (en) * | 2018-05-11 | 2020-07-03 | 中国煤炭科工集团太原研究院有限公司 | Electro-hydraulic coupling braking system of alternating-current variable-frequency electric-driven transport vehicle and control method |
| CN113859212A (en) * | 2021-11-15 | 2021-12-31 | 南京恒天领锐汽车有限公司 | Explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005025650A1 (en) * | 2005-06-03 | 2006-12-07 | Linde Ag | Industrial truck with hydraulically operated spring brake, connected to hydraulic steering system in case of failure |
| DE102009031742A1 (en) * | 2008-07-29 | 2010-02-04 | Linde Material Handling Gmbh | Portable working machine, particularly industrial truck, has brake, which is formed as spring-loaded brake, and by which hydraulic pressure is hydraulically detached in brake pressure chambers |
| CN102514562A (en) * | 2011-12-03 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for coal mine explosion-proof vehicle |
| CN202669477U (en) * | 2012-06-25 | 2013-01-16 | 江苏海鹏特种车辆有限公司 | Multi-pump driving closed type hydraulic loop of multi-axis self-traveling type hydraulic heavy duty truck |
-
2013
- 2013-04-19 CN CN201310138403.8A patent/CN103253253B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005025650A1 (en) * | 2005-06-03 | 2006-12-07 | Linde Ag | Industrial truck with hydraulically operated spring brake, connected to hydraulic steering system in case of failure |
| DE102009031742A1 (en) * | 2008-07-29 | 2010-02-04 | Linde Material Handling Gmbh | Portable working machine, particularly industrial truck, has brake, which is formed as spring-loaded brake, and by which hydraulic pressure is hydraulically detached in brake pressure chambers |
| CN102514562A (en) * | 2011-12-03 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for coal mine explosion-proof vehicle |
| CN202669477U (en) * | 2012-06-25 | 2013-01-16 | 江苏海鹏特种车辆有限公司 | Multi-pump driving closed type hydraulic loop of multi-axis self-traveling type hydraulic heavy duty truck |
Non-Patent Citations (1)
| Title |
|---|
| 工程车辆全动力制动系统充液系统研究;宋金宝等;《液压与气动》;20111231(第7期);第24页至第26页 * |
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