CN204323314U - Bidirectional driving flame proof rubber tyre vehicle brake protecting system - Google Patents

Bidirectional driving flame proof rubber tyre vehicle brake protecting system Download PDF

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Publication number
CN204323314U
CN204323314U CN201420723065.4U CN201420723065U CN204323314U CN 204323314 U CN204323314 U CN 204323314U CN 201420723065 U CN201420723065 U CN 201420723065U CN 204323314 U CN204323314 U CN 204323314U
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China
Prior art keywords
valve
brake
mouth
vehicle
braking
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Expired - Fee Related
Application number
CN201420723065.4U
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Chinese (zh)
Inventor
陈永峰
杨振声
刘杰
焦高荣
任志勇
谢龙
程玉军
郭培燕
赵秀梅
赵瑞萍
梁玉芳
张春英
韩斌慧
韦建龙
陈贤忠
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Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
Original Assignee
Taiyuan Institute of China Coal Technology and Engineering Group
Shanxi Tiandi Coal Mining Machinery Co Ltd
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Application filed by Taiyuan Institute of China Coal Technology and Engineering Group, Shanxi Tiandi Coal Mining Machinery Co Ltd filed Critical Taiyuan Institute of China Coal Technology and Engineering Group
Priority to CN201420723065.4U priority Critical patent/CN204323314U/en
Application granted granted Critical
Publication of CN204323314U publication Critical patent/CN204323314U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to a kind of brake system of underground coal mine flame proof rubber tyre vehicle, specifically a kind of bidirectional driving flame proof rubber tyre vehicle brake protecting system.A kind of bidirectional driving flame proof rubber tyre vehicle brake protecting system, be arranged on bidirectional driving flame proof rubber tyre vehicle, comprise an energy storage, promptly front/braking valve for vehicle, promptly rear/braking valve for vehicle, promptly/braking valve for vehicle group, No. two energy storages, No. three energy storages, front driving brake activation valve, rear service brake valve, a shuttle valve, No. two shuttle valves, for braking the front left Multi-functional brake of front left road wheel, for braking the front right Multi-functional brake of front right road wheel, for braking the rear left Multi-functional brake of rear left road wheel, for braking rear right Multi-functional brake and the hydraulic reservoir of rear right road wheel.

Description

Bidirectional driving flame proof rubber tyre vehicle brake protecting system
Technical field
The invention belongs to a kind of brake system of underground coal mine flame proof rubber tyre vehicle, specifically a kind of bidirectional driving flame proof rubber tyre vehicle brake protecting system.
Background technology
Bidirectional driving flame proof rubber tyre vehicle is mainly used in the transport of colliery gate road personnel and material, gate road narrow space, road surface is without sclerosis, and have certain gradient, some even reaches 14 ° ~ 16 °, in order to ensure the safety of vehicle operating, the quality of car load brake system performance just seems particularly important, comprises service brake, braking during standstill and emergency braking;
The service brake of the bidirectional driving flame proof rubber tyre vehicle that current underground coal mine uses is independent a set of brake system, and braking during standstill and emergency braking share set of system.Wherein service brake running brake used be arranged on wheel limit, employing be hydraulic braking spring release type drg; Braking during standstill and emergency braking drg used are arranged in the middle of transmission shaft, are commonly referred to as centre brake, employing be brake application by spring hydraulic pressure release type drg; Two service brake valves and two urgent/braking valve for vehicles of front and back operator's compartment operate running brake and centre brake respectively by series connection or parallel form;
The bidirectional driving flame proof rubber tyre vehicle emergency braking drg used of prior art is arranged in the middle of transmission shaft, once run into emergency situation, in emergency braking process, likely cause transmission shaft to suppress the phenomenon generations such as disconnected, thus cause car load brake failure, cause the generation of accident;
When two urgent/braking valve for vehicles for front and back operator's compartment adopt cascade to operate, principle as shown in Figure 1, R mouth Bonding pressure oil in figure, when after operating, urgent/braking valve for vehicle carries out emergency braking, the high pressure oil of centre brake 15 flows back to hydraulic reservoir by the T mouth of promptly rear/braking valve for vehicle and N mouth, makes vehicle implement emergency braking rapidly; When before operating, urgent/braking valve for vehicle carries out emergency braking, first the high pressure oil of centre brake needs T mouth by promptly rear/braking valve for vehicle and N mouth, and then by longer hydraulic tubing to the T mouth of promptly front/braking valve for vehicle and N mouth, finally just flow back to hydraulic reservoir, brake response time is longer, increases the probability that accident occurs.
When two urgent/braking valve for vehicles for front and back operator's compartment adopt parallel form to operate, principle as shown in Figure 2, R mouth Bonding pressure oil in figure, when an operator's compartment is driven wherein, when the emergency state, the personnel of another operator's compartment can not carry out emergency braking to car load by actv..
Simultaneously, vehicle, in heavy grade walking process, because abnormal cause causes driving engine flame-out car phenomenon of slipping suddenly, causes chaufeur panic, urgent/braking valve for vehicle can not be operated actv., too increase the probability that accident occurs to a certain extent.
Summary of the invention
The present invention is in order to solve above-mentioned problems of the prior art, the object of the present invention is to provide one can be in emergency situations, before any operation urgent/braking valve for vehicle or rear urgent/braking valve for vehicle and driving engine flame-out suddenly time, bidirectional driving flame proof rubber tyre vehicle can be made to carry out the set of system of hard brake stop.
The present invention takes following technical scheme: a kind of bidirectional driving flame proof rubber tyre vehicle brake protecting system, be arranged on bidirectional driving flame proof rubber tyre vehicle, comprise an energy storage, promptly front/braking valve for vehicle, promptly rear/braking valve for vehicle, promptly/braking valve for vehicle group, No. two energy storages, No. three energy storages, front driving brake activation valve, rear service brake valve, a shuttle valve, No. two shuttle valves, for braking the front left Multi-functional brake of front left road wheel, for braking the front right Multi-functional brake of front right road wheel, for braking the rear left Multi-functional brake of rear left road wheel, for braking rear right Multi-functional brake and the hydraulic reservoir of rear right road wheel.
Promptly described/braking valve for vehicle group comprises check valve and hydraulic control two-bit triplet change-over valve, promptly/braking valve for vehicle group is provided with A, B, C, each and every one mouth of D tetra-, wherein the oil inlet of check valve communicates with the B mouth of the oil inlet of hydraulic control two-bit triplet change-over valve and urgent/braking valve for vehicle group 4, the oil outlet of check valve communicates with the A mouth of urgent/braking valve for vehicle group, the return opening of hydraulic control two-bit triplet change-over valve communicates with the C mouth of urgent/braking valve for vehicle group, the actuator port of hydraulic control two-bit triplet change-over valve communicates with the D mouth of urgent/braking valve for vehicle group, the control mouth H mouth of hydraulic control two-bit triplet change-over valve is connected with the engine oil pressure mouth of driving engine by hydraulic tubing.
Promptly front/braking valve for vehicle is the proportion expression hand change over valve with auto-lock function, the oil inlet R mouth of promptly front/braking valve for vehicle is connected with an energy storage by hydraulic tubing, oil outlet T mouth is connected by the A mouth of hydraulic tubing with urgent/braking valve for vehicle group, and return opening N mouth is connected with hydraulic reservoir by hydraulic tubing.
Promptly rear/braking valve for vehicle is the proportion expression hand change over valve with auto-lock function, the oil inlet R mouth of promptly rear/braking valve for vehicle is connected by the A mouth of hydraulic tubing with urgent/braking valve for vehicle group, oil outlet T mouth is connected, for return opening N mouth is connected with hydraulic reservoir by hydraulic tubing by the B mouth of hydraulic tubing with urgent/braking valve for vehicle group.
The proportion expression hand change over valve with auto-lock function is existing known device.
The D mouth of promptly/braking valve for vehicle group is connected with the hydraulic fluid port of the parking/accident brake of front left Multi-functional brake, front right Multi-functional brake, rear left Multi-functional brake and rear right Multi-functional brake respectively by hydraulic tubing.
Front driving brake activation valve is two-way regulation of series formula brake activation valve, the oil inlet mouth of front driving brake activation valve is connected with No. two energy storages by hydraulic tubing, the oil inlet mouth of front driving brake activation valve is connected with No. three energy storages by hydraulic tubing, the oil outlet mouth of front driving brake activation valve is connected with the oil inlet E mouth of a shuttle valve by hydraulic tubing, the oil outlet of front driving brake activation valve mouth is connected with the oil inlet F mouth of No. two shuttle valves by hydraulic tubing, and the oil return inlet T mouth of front driving brake activation valve is connected with hydraulic reservoir by hydraulic tubing.
Rear service brake valve is two-way regulation of series formula brake activation valve, the oil inlet of rear service brake valve mouth is connected with No. two energy storages by hydraulic tubing, the oil inlet of rear service brake valve mouth is connected with No. three energy storages by hydraulic tubing, the oil outlet of rear service brake valve mouth is connected with the oil inlet F mouth of a shuttle valve by hydraulic tubing, the oil outlet of rear service brake valve mouth is connected with the oil inlet E mouth of No. two shuttle valves by hydraulic tubing, and the oil return inlet T mouth of rear service brake valve is connected with hydraulic reservoir by hydraulic tubing.Two-way regulation of series formula brake activation valve and shuttle valve are existing known device.
The oil outlet G mouth of a shuttle valve is connected with the hydraulic fluid port of the running brake of front left Multi-functional brake and front right Multi-functional brake respectively by hydraulic tubing.
The oil outlet G mouth of No. two shuttle valves is connected with the hydraulic fluid port of the running brake of rear left Multi-functional brake and rear right Multi-functional brake respectively by hydraulic tubing.
Described front left Multi-functional brake, front right Multi-functional brake, rear left Multi-functional brake, rear right Multi-functional brake are oil-immersed multi-disk brake.
A described energy storage, No. two energy storages and No. three energy storages are bag type accumulator, by Hydraulic Pump topping up fuel feeding.
Promptly front/braking valve for vehicle, an energy storage, No. two energy storages and No. three energy storages are arranged in front operator's compartment, and promptly rear/braking valve for vehicle and rear service brake valve are arranged in front operator's compartment.
A described shuttle valve and No. two shuttle valves are direct acting, ball-type formula shuttle valve.
1, brake off process: when bidirectional driving flame proof rubber tyre vehicle needs brake off, first start the engine is needed, the H mouth of driving engine operationally urgent/braking valve for vehicle group just establishes the engine oil pressure of certain value, make the hydraulic control two-bit triplet change-over valve commutation in urgent/braking valve for vehicle group, B mouth is communicated with D mouth, then urgent/braking valve for vehicle and promptly rear/braking valve for vehicle before operating respectively, its R mouth is made to be communicated with (shown in Fig. 3 position) with T mouth respectively, high pressure oil now in an energy storage is successively by R mouth and the T mouth of promptly front/braking valve for vehicle, the R mouth of promptly rear/braking valve for vehicle and T mouth, B mouth and the D mouth of promptly/braking valve for vehicle group enter front left Multi-functional brake, front right Multi-functional brake, rear left Multi-functional brake, rear right Multi-functional brake mouth brake off.Urgent before in brake off process/to belong to series relationship between braking valve for vehicle and promptly rear/braking valve for vehicle, any one is urgent/and R mouth and the T mouth of braking valve for vehicle are not communicated with all can not brake off.
2, service braking operation: when bidirectional driving flame proof rubber tyre vehicle needs to slow down or brake in the process of walking, if drive at front operator's compartment, driving brake activation valve before operation, brake activation valve of driving a vehicle before making mouthful with mouth is connected, mouthful with mouthful connect, now the high pressure oil of No. two energy storages and No. three energy storages enters front left Multi-functional brake, front right Multi-functional brake respectively respectively by the E mouth of a shuttle valve and the F mouth of No. two shuttle valves mouthful and rear left Multi-functional brake, rear right Multi-functional brake mouthful, make vehicle carry out slowing down or braking.If drive at rear operator's compartment, principle is driven identical with front operator's compartment.(wherein for service brake hydraulic fluid port, for urgent/braking during standstill hydraulic fluid port.)
3, emergency braking process: when bidirectional driving flame proof rubber tyre vehicle needs to carry out emergency braking in the process of walking, before operation, urgent/braking valve for vehicle or promptly rear/braking valve for vehicle can make vehicle stop rapidly.If urgent before operation/braking valve for vehicle makes T mouth and N mouth connect, now front left Multi-functional brake, front right Multi-functional brake, rear left Multi-functional brake, rear right Multi-functional brake high pressure oil in mouthful flows through hydraulic control two-bit triplet change-over valve, check valve to A mouth, then flow back to hydraulic reservoir by the T mouth of promptly/braking valve for vehicle to N mouth by the D mouth in urgent/braking valve for vehicle group rapidly, makes vehicle implement emergency braking rapidly; If urgent after operation/braking valve for vehicle makes T mouth and N mouth connect, now front left Multi-functional brake, front right Multi-functional brake, rear left Multi-functional brake, rear right Multi-functional brake high pressure oil in mouthful flows through hydraulic control two-bit triplet change-over valve to B mouth, then flow back to hydraulic reservoir by the T mouth of promptly rear/braking valve for vehicle to N mouth by the D mouth in promptly/braking valve for vehicle group rapidly, makes vehicle implement emergency braking rapidly.In emergency braking process, front urgent/belong to parallel relationship between braking valve for vehicle and promptly rear/braking valve for vehicle, operating any one urgent/braking valve for vehicle can make vehicle stop rapidly, and emergency braking performance when front driver behavior and rear driver behavior is substantially identical.
4, autobrake process during engine off: flame proof rubber tyre vehicle is when running on ramp, because abnormal cause causes driving engine to stop working suddenly, now engine oil pressure reduces to zero rapidly, hydraulic control two-bit triplet change-over valve in promptly/braking valve for vehicle group commutates rapidly (shown in Fig. 3 position), now front left Multi-functional brake, front right Multi-functional brake, rear left Multi-functional brake, rear right Multi-functional brake high pressure oil in mouthful flows through hydraulic control two-bit triplet change-over valve by the D mouth in urgent/braking valve for vehicle group 4 and flows back to hydraulic reservoir to C mouth, makes vehicle implement emergency braking rapidly.
Compared with prior art, the present invention has following beneficial effect mutually:
1, on bidirectional driving flame proof rubber tyre vehicle, employ Multi-functional brake, car load can be made to carry out effective brake when implementing emergency braking, there will not be drive shafts fracture thus making the phenomenons such as car load brake failure.
2, promptly forward and backward/braking valve for vehicle adopts cascaded structure when brake off, adopts parallel-connection structure form during braking, drives operation arbitrarily and have almost identical emergency braking characteristics before and after making.
3, have employed engine oil pressure Long-distance Control urgent/braking valve for vehicle group 4 in the commutation of hydraulic control two-bit triplet change-over valve, achieve driving engine flame-out due to abnormal cause time car load emergency braking.
Accompanying drawing explanation
Fig. 1 be current bidirectional driving flame proof rubber tyre vehicle urgent/braking during standstill series connection schematic diagram;
Fig. 2 be current bidirectional driving flame proof rubber tyre vehicle urgent/braking during standstill principle of parallel figure;
Fig. 3 is schematic diagram of the present invention;
Fig. 4 of the present inventionly faces structural representation;
Fig. 5 is plan structure schematic diagram of the present invention;
In figure: 1-energy storage, urgent/braking valve for vehicle before 2-, urgent/braking valve for vehicle after 3-, 4-is urgent/braking valve for vehicle group, and 5-No. bis-energy storages, 6-No. tri-energy storages, driving brake activation valve before 7-, service brake valve after 8-, 9-shuttle valve, 10-No. bis-shuttle valves, 11-front left Multi-functional brake, 12-front right Multi-functional brake, 13-rear left Multi-functional brake, 14-rear right Multi-functional brake, 15-centre brake, 16-No. tri-shuttle valves.
Detailed description of the invention
As Fig. 4, shown in 5, a kind of bidirectional driving flame proof rubber tyre vehicle brake protecting system, be arranged on bidirectional driving flame proof rubber tyre vehicle, comprise an energy storage 1, promptly front/braking valve for vehicle 2, promptly rear/braking valve for vehicle 3, promptly/braking valve for vehicle group 4, No. two energy storages 5, No. three energy storages 6, front driving brake activation valve 7, rear service brake valve 8, a shuttle valve 9, No. two shuttle valves 10, for braking the front left Multi-functional brake 11 of front left road wheel, for braking the front right Multi-functional brake 12 of front right road wheel, for braking the rear left Multi-functional brake 13 of rear left road wheel, for braking rear right Multi-functional brake 14 and the hydraulic reservoir of rear right road wheel.
As shown in Figure 3, promptly described/braking valve for vehicle group 4 comprises check valve and hydraulic control two-bit triplet change-over valve, promptly/braking valve for vehicle group 4 is provided with A, B, C, each and every one mouth of D tetra-, wherein the oil inlet of check valve communicates with the B mouth of the oil inlet of hydraulic control two-bit triplet change-over valve and urgent/braking valve for vehicle group 4, the oil outlet of check valve communicates with the A mouth of urgent/braking valve for vehicle group 4, the return opening of hydraulic control two-bit triplet change-over valve communicates with the C mouth of urgent/braking valve for vehicle group 4, the actuator port of hydraulic control two-bit triplet change-over valve communicates with the D mouth of urgent/braking valve for vehicle group 4, the control mouth H mouth of hydraulic control two-bit triplet change-over valve is connected with the engine oil pressure mouth of driving engine by hydraulic tubing.
Promptly front/braking valve for vehicle 2 is for having the proportion expression hand change over valve of auto-lock function, the oil inlet R mouth of promptly front/braking valve for vehicle 2 is connected with an energy storage 1 by hydraulic tubing, oil outlet T mouth is connected by the A mouth of hydraulic tubing with urgent/braking valve for vehicle group 4, and return opening N mouth is connected with hydraulic reservoir by hydraulic tubing.
Promptly rear/braking valve for vehicle 3 is for having the proportion expression hand change over valve of auto-lock function, the oil inlet R mouth of promptly rear/braking valve for vehicle 3 is connected by the A mouth of hydraulic tubing with urgent/braking valve for vehicle group 4, oil outlet T mouth is connected, for return opening N mouth is connected with hydraulic reservoir by hydraulic tubing by the B mouth of hydraulic tubing with urgent/braking valve for vehicle group 4.
The D mouth of promptly/braking valve for vehicle group 4 is connected with the hydraulic fluid port of the parking/accident brake of front left Multi-functional brake 11, front right Multi-functional brake 12, rear left Multi-functional brake 13 and rear right Multi-functional brake 14 respectively by hydraulic tubing.
Front driving brake activation valve 7 is two-way regulation of series formula brake activation valve, the oil inlet of front driving brake activation valve 7 mouth is connected with No. two energy storages 5 by hydraulic tubing, the oil inlet of front driving brake activation valve 7 mouth is connected with No. three energy storages 6 by hydraulic tubing, the oil outlet of front driving brake activation valve 7 mouth is connected with the oil inlet E mouth of a shuttle valve 9 by hydraulic tubing, the oil outlet of front driving brake activation valve 7 mouth is connected with the oil inlet F mouth of No. two shuttle valves 10 by hydraulic tubing, and the oil return inlet T mouth of front driving brake activation valve 7 is connected with hydraulic reservoir by hydraulic tubing;
Rear service brake valve 8 is two-way regulation of series formula brake activation valve, the oil inlet of rear service brake valve 8 mouth is connected with No. two energy storages 5 by hydraulic tubing, the oil inlet of rear service brake valve 8 mouth is connected with No. three energy storages 6 by hydraulic tubing, the oil outlet of rear service brake valve 8 mouth is connected with the oil inlet F mouth of a shuttle valve 9 by hydraulic tubing, the oil outlet of rear service brake valve 8 mouth is connected with the oil inlet E mouth of No. two shuttle valves 10 by hydraulic tubing, and the oil return inlet T mouth of rear service brake valve 8 is connected with hydraulic reservoir by hydraulic tubing.
The oil outlet G mouth of a shuttle valve 9 is connected with the hydraulic fluid port of the running brake of front left Multi-functional brake 11 and front right Multi-functional brake 12 respectively by hydraulic tubing.
The oil outlet G mouth of No. two shuttle valves 10 is connected with the hydraulic fluid port of the running brake of rear left Multi-functional brake 13 and rear right Multi-functional brake 14 respectively by hydraulic tubing.
Described front left Multi-functional brake 11, front right Multi-functional brake 12, rear left Multi-functional brake 13, rear right Multi-functional brake 14 are oil-immersed multi-disk brake.
A described energy storage 1, No. two energy storages 5 and No. three energy storages 6 are bag type accumulator, by Hydraulic Pump topping up fuel feeding.
Promptly front/braking valve for vehicle 2, energy storage 1, No. two energy storages 5 and No. three energy storages 6 are arranged in front operator's compartment, and promptly rear/braking valve for vehicle 3 and rear service brake valve 8 are arranged in front operator's compartment.
A described shuttle valve 9 and No. two shuttle valves 10 are direct acting, ball-type formula shuttle valve.
1, brake off process: when bidirectional driving flame proof rubber tyre vehicle needs brake off, first start the engine is needed, the H mouth of driving engine operationally urgent/braking valve for vehicle group 4 just establishes the engine oil pressure of certain value, make the hydraulic control two-bit triplet change-over valve commutation in urgent/braking valve for vehicle group 4, B mouth is communicated with D mouth, then urgent/braking valve for vehicle 2 and promptly rear/braking valve for vehicle 3 before operating respectively, its R mouth is made to be communicated with (shown in Fig. 3 position) with T mouth respectively, high pressure oil now in an energy storage 1 is successively by R mouth and the T mouth of promptly front/braking valve for vehicle 2, the R mouth of promptly rear/braking valve for vehicle 3 and T mouth, B mouth and the D mouth of promptly/braking valve for vehicle group 4 enter front left Multi-functional brake 11, front right Multi-functional brake 12, rear left Multi-functional brake 13, rear right Multi-functional brake 14 mouth brake off.Urgent before in brake off process/to belong to series relationship between braking valve for vehicle 2 and promptly rear/braking valve for vehicle 3, any one is urgent/and R mouth and the T mouth of braking valve for vehicle are not communicated with all can not brake off.
2, service braking operation: when bidirectional driving flame proof rubber tyre vehicle needs to slow down or brake in the process of walking, if drive at front operator's compartment, driving brake activation valve 7 before operation, brake activation valve 7 of driving a vehicle before making mouthful with mouth is connected, mouthful with mouthful connect, now the high pressure oil of No. two energy storages 5 and No. three energy storages 6 enters front left Multi-functional brake 11, front right Multi-functional brake 12 respectively respectively by the E mouth of a shuttle valve 9 and the F mouth of No. two shuttle valves 10 mouthful and rear left Multi-functional brake 13, rear right Multi-functional brake 14 mouthful, make vehicle carry out slowing down or braking.If drive at rear operator's compartment, principle is driven identical with front operator's compartment.(wherein for service brake hydraulic fluid port, for urgent/braking during standstill hydraulic fluid port.)
3, emergency braking process: when bidirectional driving flame proof rubber tyre vehicle needs to carry out emergency braking in the process of walking, before operation, urgent/braking valve for vehicle 2 or promptly rear/braking valve for vehicle 3 can make vehicle stop rapidly.If urgent before operation/braking valve for vehicle 2 makes T mouth and N mouth connect, now front left Multi-functional brake 11, front right Multi-functional brake 12, rear left Multi-functional brake 13, rear right Multi-functional brake 14 high pressure oil in mouthful flows through hydraulic control two-bit triplet change-over valve, check valve to A mouth, then flow back to hydraulic reservoir by the T mouth of promptly/braking valve for vehicle 2 to N mouth by the D mouth in urgent/braking valve for vehicle group 4 rapidly, makes vehicle implement emergency braking rapidly; If urgent after operation/braking valve for vehicle 3 makes T mouth and N mouth connect, now front left Multi-functional brake 11, front right Multi-functional brake 12, rear left Multi-functional brake 13, rear right Multi-functional brake 14 high pressure oil in mouthful flows through hydraulic control two-bit triplet change-over valve to B mouth, then flow back to hydraulic reservoir by the T mouth of promptly rear/braking valve for vehicle 3 to N mouth by the D mouth in promptly/braking valve for vehicle group 4 rapidly, makes vehicle implement emergency braking rapidly.In emergency braking process, front urgent/belong to parallel relationship between braking valve for vehicle 2 and promptly rear/braking valve for vehicle 3, operating any one urgent/braking valve for vehicle can make vehicle stop rapidly, and emergency braking performance when front driver behavior and rear driver behavior is substantially identical.
4, autobrake process during engine off: flame proof rubber tyre vehicle is when running on ramp, because abnormal cause causes driving engine to stop working suddenly, now engine oil pressure reduces to zero rapidly, hydraulic control two-bit triplet change-over valve in promptly/braking valve for vehicle group 4 commutates rapidly (shown in Fig. 3 position), now front left Multi-functional brake 11, front right Multi-functional brake 12, rear left Multi-functional brake 13, rear right Multi-functional brake 14 high pressure oil in mouthful flows through hydraulic control two-bit triplet change-over valve by the D mouth in urgent/braking valve for vehicle group 4 and flows back to hydraulic reservoir to C mouth, makes vehicle implement emergency braking rapidly.

Claims (5)

1. a bidirectional driving flame proof rubber tyre vehicle brake protecting system, it is characterized in that: this Operation system setting is on bidirectional driving flame proof rubber tyre vehicle, comprise an energy storage (1), promptly front/braking valve for vehicle (2), promptly rear/braking valve for vehicle (3), promptly/braking valve for vehicle group (4), No. two energy storages (5), No. three energy storages (6), front driving brake activation valve (7), rear service brake valve (8), a shuttle valve (9), No. two shuttle valves (10), for braking the front left Multi-functional brake (11) of front left road wheel, for braking the front right Multi-functional brake (12) of front right road wheel, for braking the rear left Multi-functional brake (13) of rear left road wheel, for braking rear right Multi-functional brake (14) and the hydraulic reservoir of rear right road wheel,
Promptly described/braking valve for vehicle group (4) comprises check valve and hydraulic control two-bit triplet change-over valve, promptly/braking valve for vehicle group (4) is provided with A, B, C, each and every one mouth of D tetra-, wherein the oil inlet of check valve communicates with the B mouth of the oil inlet of hydraulic control two-bit triplet change-over valve and urgent/braking valve for vehicle group 4, the oil outlet of check valve communicates with the A mouth of urgent/braking valve for vehicle group (4), the return opening of hydraulic control two-bit triplet change-over valve communicates with the C mouth of urgent/braking valve for vehicle group (4), the actuator port of hydraulic control two-bit triplet change-over valve communicates with the D mouth of urgent/braking valve for vehicle group (4), the control mouth H mouth of hydraulic control two-bit triplet change-over valve is connected with the engine oil pressure mouth of driving engine by hydraulic tubing,
Promptly front/braking valve for vehicle (2) is for having the proportion expression hand change over valve of auto-lock function, the oil inlet R mouth of promptly front/braking valve for vehicle (2) is connected with an energy storage (1) by hydraulic tubing, oil outlet T mouth is connected by the A mouth of hydraulic tubing with urgent/braking valve for vehicle group (4), and return opening N mouth is connected with hydraulic reservoir by hydraulic tubing;
Promptly rear/braking valve for vehicle (3) is for having the proportion expression hand change over valve of auto-lock function, the oil inlet R mouth of promptly rear/braking valve for vehicle (3) is connected by the A mouth of hydraulic tubing with urgent/braking valve for vehicle group (4), oil outlet T mouth is connected, for return opening N mouth is connected with hydraulic reservoir by hydraulic tubing by the B mouth of hydraulic tubing with urgent/braking valve for vehicle group (4);
The D mouth of promptly/braking valve for vehicle group (4) is connected with the hydraulic fluid port of the parking/accident brake of front left Multi-functional brake (11), front right Multi-functional brake (12), rear left Multi-functional brake (13) and rear right Multi-functional brake (14) respectively by hydraulic tubing;
Front driving brake activation valve (7) is two-way regulation of series formula brake activation valve, the oil inlet of front driving brake activation valve (7) mouth is connected with No. two energy storages (5) by hydraulic tubing, the oil inlet of front driving brake activation valve (7) mouth is connected with No. three energy storages (6) by hydraulic tubing, the oil outlet of front driving brake activation valve (7) mouth is connected with the oil inlet E mouth of a shuttle valve (9) by hydraulic tubing, the oil outlet of front driving brake activation valve (7) mouth is connected with the oil inlet F mouth of No. two shuttle valves (10) by hydraulic tubing, and the oil return inlet T mouth of front driving brake activation valve (7) is connected with hydraulic reservoir by hydraulic tubing;
Rear service brake valve (8) is two-way regulation of series formula brake activation valve, the oil inlet of rear service brake valve (8) mouth is connected with No. two energy storages (5) by hydraulic tubing, the oil inlet of rear service brake valve (8) mouth is connected with No. three energy storages (6) by hydraulic tubing, the oil outlet of rear service brake valve (8) mouth is connected with the oil inlet F mouth of a shuttle valve (9) by hydraulic tubing, the oil outlet of rear service brake valve (8) mouth is connected with the oil inlet E mouth of No. two shuttle valves (10) by hydraulic tubing, and the oil return inlet T mouth of rear service brake valve (8) is connected with hydraulic reservoir by hydraulic tubing
The oil outlet G mouth of a shuttle valve (9) is connected with the hydraulic fluid port of the running brake of front left Multi-functional brake (11) and front right Multi-functional brake (12) respectively by hydraulic tubing;
The oil outlet G mouth of No. two shuttle valves (10) is connected with the hydraulic fluid port of the running brake of rear left Multi-functional brake (13) and rear right Multi-functional brake (14) respectively by hydraulic tubing.
2. bidirectional driving flame proof rubber tyre vehicle brake protecting system according to claim 1, is characterized in that: described front left Multi-functional brake (11), front right Multi-functional brake (12), rear left Multi-functional brake (13), rear right Multi-functional brake (14) are oil-immersed multi-disk brake.
3. bidirectional driving flame proof rubber tyre vehicle brake protecting system according to claim 1, is characterized in that: a described energy storage (1), No. two energy storages (5) and No. three energy storages (6) are bag type accumulator, by Hydraulic Pump topping up fuel feeding.
4. bidirectional driving flame proof rubber tyre vehicle brake protecting system according to claim 1 and 2; it is characterized in that: promptly front/braking valve for vehicle (2), energy storage (1), No. two energy storages (5) and No. three energy storages (6) are arranged in front operator's compartment, and promptly rear/braking valve for vehicle (3) and rear service brake valve (8) are arranged in front operator's compartment.
5. bidirectional driving flame proof rubber tyre vehicle brake protecting system according to claim 3, is characterized in that: a described shuttle valve (9) and No. two shuttle valves (10) are direct acting, ball-type formula shuttle valve.
CN201420723065.4U 2014-11-27 2014-11-27 Bidirectional driving flame proof rubber tyre vehicle brake protecting system Expired - Fee Related CN204323314U (en)

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Application Number Priority Date Filing Date Title
CN201420723065.4U CN204323314U (en) 2014-11-27 2014-11-27 Bidirectional driving flame proof rubber tyre vehicle brake protecting system

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Application Number Priority Date Filing Date Title
CN201420723065.4U CN204323314U (en) 2014-11-27 2014-11-27 Bidirectional driving flame proof rubber tyre vehicle brake protecting system

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CN204323314U true CN204323314U (en) 2015-05-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104494587A (en) * 2014-11-27 2015-04-08 中国煤炭科工集团太原研究院有限公司 Brake protection system of two-way driving anti-explosion rubber-tired vehicle
CN107323446A (en) * 2017-06-30 2017-11-07 燕山大学 Braking control system and its control method applied to hydraulic closed drive system
CN110588617A (en) * 2019-09-02 2019-12-20 中国煤炭科工集团太原研究院有限公司 Control system for realizing driving and emergency parking braking functions of front wheels and rear wheels of explosion-proof vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104494587A (en) * 2014-11-27 2015-04-08 中国煤炭科工集团太原研究院有限公司 Brake protection system of two-way driving anti-explosion rubber-tired vehicle
CN104494587B (en) * 2014-11-27 2017-02-22 中国煤炭科工集团太原研究院有限公司 Brake protection system of two-way driving anti-explosion rubber-tired vehicle
CN107323446A (en) * 2017-06-30 2017-11-07 燕山大学 Braking control system and its control method applied to hydraulic closed drive system
CN110588617A (en) * 2019-09-02 2019-12-20 中国煤炭科工集团太原研究院有限公司 Control system for realizing driving and emergency parking braking functions of front wheels and rear wheels of explosion-proof vehicle

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