CN204527182U - Automobile front axle holding brake device, parking braking system of automobile - Google Patents

Automobile front axle holding brake device, parking braking system of automobile Download PDF

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Publication number
CN204527182U
CN204527182U CN201520271444.9U CN201520271444U CN204527182U CN 204527182 U CN204527182 U CN 204527182U CN 201520271444 U CN201520271444 U CN 201520271444U CN 204527182 U CN204527182 U CN 204527182U
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CN
China
Prior art keywords
air
brake
valve
automobile
extractor duct
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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.)
Withdrawn - After Issue
Application number
CN201520271444.9U
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Chinese (zh)
Inventor
陈廷海
吴永强
王云
薛增贵
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Sinotruk Chengdu Wangpai Commercial Vehicle Co Ltd
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Sinotruk Chengdu Wangpai Commercial Vehicle Co Ltd
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Priority to CN201520271444.9U priority Critical patent/CN204527182U/en
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Publication of CN204527182U publication Critical patent/CN204527182U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model relates to automobile manufacturing field, a kind of automobile front axle holding brake device, parking braking system of automobile are provided, to solve the not high problem of current performance of parking brake, this automobile front axle holding brake device comprises air feed module, hand brake valve, two-position three-way, two-way valve, gas main brake valve, propons compressed air brake cylinder.The technical scheme that the utility model proposes solves the problem that current propons list chamber compressed air brake cylinder cannot realize braking during standstill, improves braking performance of vehicle.

Description

Automobile front axle holding brake device, parking braking system of automobile
Technical field
The utility model relates to automobile manufacturing field, particularly a kind of automobile front axle holding brake device, parking braking system of automobile.
Background technology
Along with the develop rapidly of auto-industry, automotive safety is more and more subject to people's attention, and the deceleration and stopping performance of automobile is directly connected to personal safety and property safety.The deceleration and stopping performance of automobile is decided by brake system, at present, the brake system of automobile is divided into service brake to unify emergency brake system, wherein automobile parking braking is normally realized by back axle energy storage spring brake chamber and hand control valve (HCV), namely the back axle air-cut-off break braking during standstill be commonly called as, when automobile parking braking, it utilizes the spring force of energy stroage spring in air chamber to make back axle be in braking state, and now propons braking is in disarm state, for general-utility car, when its underloading or when being parked in flat road surface, braking during standstill effectively can be operated in braking mode, but in, heavy motor vehicle is on ramp during parking, only bridge braking during standstill can seem that some is not enough rearward, particularly when automobile at full load, very easily cause automobile safety accident.In order to head it off, effectively and the most directly method is exactly that propons is the same with back axle, and by using energy storage spring brake chamber to make propons air chamber also play parking-brake action, the performance of parking brake of such car load will promote greatly.But the propons of general automobile is connected with steering swivel system, so there is no enough spaces to install the same brake equipment of similar back axle, so the propons of current most of automobile is only equipped with service brake air chamber, there is no parking braking function module, cause the raising of car load performance of parking brake to be greatly limited.
In order to improve the performance of parking brake of car load, one efficiently method makes automobile front axle also play parking-brake action.But current automobile axle braking during standstill realizes when disconnecting ventilation, and propons compressed air brake cylinder needs just can play brake action under the state of ventilation, realize front-rear axle and synchronously carry out braking during standstill, be badly in need of a kind of emergency brake system not changing existing propons compressed air brake cylinder and riding manipulation custom.In addition, if automobile front axle achieves inflation braking during standstill on the basis not changing original driving states, service brake state, the performance of parking brake of automobile can be improved undoubtedly, if but automobile is parked for a long time, because the reasons such as the defect of fabrication of brake system parts own and use wearing and tearing can cause propons compressed air brake cylinder to leak gas, this is the greatest weakness of inflation braking during standstill, there is serious potential safety hazard, therefore needs a kind of feasible solution.
Utility model content
[technical matters that will solve]
The purpose of this utility model is to provide a kind of automobile front axle holding brake device, parking braking system of automobile, at least one of to solve the problems of the technologies described above.
[technical scheme]
The utility model is achieved through the following technical solutions.
The utility model relates to a kind of automobile front axle holding brake device, and it comprises air feed module, hand brake valve, two-position three-way, two-way valve, gas main brake valve, propons compressed air brake cylinder,
Described air feed module is used for providing pressurized air;
The admission port of described hand brake valve is connected with the air extractor duct of air feed module, and its air extractor duct is connected with the admission port of back axle braking during standstill rapid release valve, the control mouth of two-position three-way;
First admission port of described two-way valve is connected with the propons brake chamber air extractor duct of gas main brake valve, and its air extractor duct is connected with propons compressed air brake cylinder;
The air extractor duct of described two-position three-way is connected with the second admission port of two-way valve, and its admission port is connected with the air extractor duct of air feed module.
As one preferred embodiment, also comprise the gas control parking lock module be connected with the air extractor duct of hand brake valve, described gas control parking lock module comprises gas and pushes away working cylinder, cylinder push-rod, check lever, and described propons compressed air brake cylinder is provided with push rod cutting ferrule,
The air extractor duct of admission port and hand brake valve that described gas pushes away working cylinder is connected, and one end and the gas of described cylinder push-rod push away working cylinder and is connected, and the other end of described cylinder push-rod is connected with check lever, and the push rod cutting ferrule of described propons compressed air brake cylinder is connected with check lever.
As another preferred embodiment, between the admission port of described two-position three-way and the air extractor duct of air feed module, be provided with check valve,
The admission port of described check valve is connected with the air extractor duct of air feed module, and its air extractor duct is connected with the admission port of two-position three-way.
As another preferred embodiment, also comprise the propons braking rapid release valve be arranged between the air extractor duct of two-way valve and compressed air brake cylinder, the described propons braking admission port of rapid release valve is connected with the air extractor duct of two-way valve, and its air extractor duct is connected with compressed air brake cylinder.
As another preferred embodiment, the piston that the inside of described two-position three-way is provided with pull back spring and is connected with pull back spring.
As another preferred embodiment, the sectional area of described piston near one end of the control mouth of two-position three-way is greater than the sectional area of described piston near one end of the admission port of two-position three-way.
As another preferred embodiment; described air feed module comprises air compressor, air dryer, four-loop protection valve, air receiver; described air compressor is connected with one end of air dryer; the other end of described air dryer is connected with one end of four-loop protection valve; the other end of described four-loop protection valve is connected with the admission port of air receiver, and the air extractor duct of described air receiver is the air extractor duct of air feed module.
The utility model also relates to a kind of parking braking system of automobile, and it comprises back axle brake equipment, and described back axle brake equipment comprises back axle braking during standstill rapid release valve, and it also comprises arbitrary described automobile front axle holding brake device in technique scheme.
[beneficial effect]
The technical scheme that the utility model proposes has following beneficial effect:
(1) the utility model is by arranging two-position three-way and gas control parking lock structure, solves the problem that current propons list chamber compressed air brake cylinder cannot realize braking during standstill, improves braking performance of vehicle.
(2) the utility model realizes based on existing emergency brake system, can not change former car brake system, therefore have stronger commonality, and cost is lower.
Accompanying drawing explanation
The structural representation of the parking braking system of automobile that Fig. 1 provides for embodiment one of the present utility model;
Two-position three-way in the parking braking system of automobile that Fig. 2 provides for embodiment one of the present utility model is in constitution diagram during driving states.
Two-position three-way in the parking braking system of automobile that Fig. 3 provides for embodiment one of the present utility model is in constitution diagram during parked state.
The structural representation of the gas control parking lock module in the parking braking system of automobile that Fig. 4 provides for embodiment one of the present utility model.
In accompanying drawing: 1-air compressor, 2-air dryer, 3-four-loop protection valve, 4-air receiver, 5-hand brake valve, the admission port of 5.1-hand brake valve, the air extractor duct of 5.2-hand brake valve, 6-two-position three-way, the admission port of 6.1-two-position three-way, the air extractor duct of 6.2-two-position three-way, the exhausr port of 6.3-two-position three-way, the control mouth of 6.4-two-position three-way, 7-two-way valve, the admission port of 7.1-two-way valve, the admission port of 7.2-two-way valve, the air extractor duct of 7.3-two-way valve, 8-gas control parking lock module, 8.1-gas pushes away the admission port of working cylinder, 8.2-cylinder push-rod, 8.3-check lever, 8.4 gas push away working cylinder, 9-gas main brake valve, 9.1-propons brake chamber admission port, 9.2-propons brake chamber air extractor duct, 10-check valve, 11-propons braking rapid release valve, 12-propons compressed air brake cylinder, 12.1-push rod cutting ferrule, 13-relay valve, 14-energy storage spring brake chamber, 15-back axle braking rapid release valve.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, clear, complete description is carried out to detailed description of the invention of the present utility model, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, neither to restriction of the present utility model.Based on embodiment of the present utility model, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
The structural representation of the parking braking system of automobile that Fig. 1 provides for the utility model embodiment one.As shown in Figure 1, this system comprises automobile front axle holding brake device, automobile axle holding brake device, and wherein automobile axle holding brake device is the holding brake device used in prior art.Automobile front axle holding brake device comprises air feed module, hand brake valve 5, two-position three-way 6, two-way valve 7, gas main brake valve 9, propons braking rapid release valve 11, propons compressed air brake cylinder 12, gas control parking lock module 8, check valve 10; Automobile axle holding brake device comprises relay valve 13, energy storage spring brake chamber 14, back axle braking rapid release valve 15.
Annexation between all parts is described below.
In the present embodiment, energy storage spring brake chamber 14 is connected with the air extractor duct of relay valve 13, back axle braking during standstill rapid release valve 15 respectively.
In the present embodiment; air feed module is used for providing pressurized air; it specifically comprises air compressor 1, air dryer 2, four-loop protection valve 3, air receiver 4; air compressor 1 is connected with one end of air dryer 2; the other end of air dryer 2 is connected with one end of four-loop protection valve 3; the other end of four-loop protection valve 3 is connected with the admission port of air receiver 4, and the air extractor duct of air receiver 4 is the air extractor duct of air feed module.
In the present embodiment, the admission port 5.1 of hand brake valve 5 is connected with the air extractor duct of air feed module, and its air extractor duct 5.2 is connected with the admission port of back axle braking during standstill rapid release valve 13, the control mouth 6.4 of two-position three-way 6.
In the present embodiment, the admission port 7.1 of two-way valve 7 is connected with the propons brake chamber air extractor duct 9.2 of gas main brake valve 9, and the admission port that rapid release valve 11 braked by its air extractor duct 7.3 and propons is connected.The propons brake chamber admission port 9.1 of gas main brake valve 9 is connected with the air extractor duct of air receiver 4.The air extractor duct of propons braking rapid release valve 11 is connected with propons compressed air brake cylinder 12.As another kind of embodiment, also can directly the air extractor duct 7.3 of two-way valve 7 be connected with propons compressed air brake cylinder 12.
In the present embodiment, two-position three-way 6 comprises control mouth 6.4, admission port 6.1, air extractor duct 6.2 and exhausr port 6.3, the piston that the inside of two-position three-way 6 is provided with pull back spring and is connected with pull back spring, the sectional area of piston near one end of the control mouth 6.4 of two-position three-way 6 is greater than the sectional area of piston near one end of the admission port 6.1 of two-position three-way 6.The air extractor duct 6.2 of two-position three-way 6 is connected with the admission port 7.2 of two-way valve 7, and its admission port 6.1 is connected with the air extractor duct of check valve 10.The following describes the principle of work of two-position three-way: Fig. 2 is view when two-position three-way is in driving states in the utility model embodiment one, as shown in Figure 2, when automobile keeps driving or service brake state, the control mouth 6.4 of two-position three-way 6 keeps ventilation always, piston in two-position three-way 6 is moved to right, thus cut off admission port 6.1 and air extractor duct 6.2, air extractor duct 6.2 is communicated with exhausr port 6.3, achieves the function that ventilation controls cut-out work source of the gas; Fig. 3 is view when two-position three-way is in parked state in the utility model embodiment one, as shown in Figure 3, when automobile keeps braking during standstill state, the control mouth 6.4 of two-position three-way 6 is died always, piston in two-position three-way 6 moves to left under the effect of pull back spring, be communicated with admission port 6.1 and air extractor duct 6.2, air extractor duct 6.2 and exhausr port 6.3 are cut off, achieving dies controls the function opening work source of the gas.
In the present embodiment, gas control parking lock module 8 comprises gas and pushes away working cylinder 8.4, cylinder push-rod 8.2, check lever 8.3, and propons compressed air brake cylinder 12 is provided with push rod cutting ferrule 12.1.The air extractor duct 5.2 of admission port 8.1 and hand brake valve 5 that gas pushes away working cylinder 8.4 is connected, one end and the gas of cylinder push-rod 8.2 push away working cylinder 8.4 and are connected, the other end of cylinder push-rod 8.2 is connected with check lever 8.3, check lever 8.3 is also connected with the push rod cutting ferrule 12.1 of propons compressed air brake cylinder 12, particularly, gas pushes away working cylinder 8.4 and is fixedly connected with cylinder push-rod 8.2, cylinder push-rod 8.2 is articulated and connected with two bars of check lever 8.3, namely work push rod 8.2 removable and rotary motion with the point of connection of check lever 8.3, the other end of check lever 8.3 contacts with push rod cutting ferrule 12.1 and connects, when cylinder 8.4 is ventilated, gas pushes away working cylinder 8.4 and promotes cylinder push-rod 8.2, push rod 8.2 travels forward, check lever 8.3 and push rod cutting ferrule 12.1 are disengaged, remove propons compressed air brake cylinder 12 push rod spacing, otherwise, when gas push away working cylinder 8.4 die, check lever 8.3 is made to contact spacing with push rod cutting ferrule 12.1.Fig. 4 is the structural representation of the gas control parking lock module in automobile front axle holding brake device, the principle of work of gas control parking lock module is described: when automobile keeps driving or service brake state below in conjunction with Fig. 4, the gas of gas control parking lock module 8 pushes away working cylinder 8.4 and inflates, cylinder push-rod 8.2 is moved to right, check lever 8.3 disengages with the push rod cutting ferrule 12.1 of propons compressed air brake cylinder 12, removes parking lock state; When automobile keeps braking during standstill state, the gas of gas control parking lock module 8 pushes away working cylinder 8.4 and dies, under gas pushes away the inner pull back spring effect of working cylinder 8.4, cylinder push-rod 8.2 is moved to left, check lever 8.3 contacts spacing with the push rod cutting ferrule 12.1 of propons compressed air brake cylinder 12, keeps parking lock state.As can be seen from above principle of work, solving by arranging gas control parking lock module 8 the insecure problem of propons braking during standstill caused because stopping for a long time, improve the reliability of automobile parking braking.
In the present embodiment, check valve 10 is arranged between the admission port 6.1 of two-position three-way 6 and the air extractor duct of air feed module, particularly, the admission port of check valve 10 is connected with the air extractor duct of air feed module, and its air extractor duct is connected with the admission port 6.1 of two-position three-way 6.Need to illustrate, the main purpose arranging check valve 10 prevents pressurized air reverse flow, as another kind of embodiment, also can be directly connected with the air extractor duct of air feed module by the admission port 6.1 of two-position three-way 6.
Below the principle of work of the present embodiment is described in detail.
When being provided with the running of the parking braking system of automobile that the present embodiment provides, hand brake valve 5 is opened, after pressure gas flows out from air receiver 4, wherein a road pressure gas is through hand brake valve 5, back axle braking during standstill rapid release valve 15 to the parking chamber of energy storage spring brake chamber 14, removes back axle braking during standstill; Another road pressure gas flows through two-position three-way respectively and controls the gentle admission port 8.1 pushing away working cylinder 8.4 of mouth 6.4, under gas pressure, two-position three-way admission port 6.1 and air extractor duct 6.2 disconnect, air rapid release valve 11 in propons compressed air brake cylinder 12 and pipeline and two-position three-way exhausr port 6.3 enter air, gas control parking lock module 8 is inflated simultaneously, remove the contact condition of the push rod cutting ferrule 12.1 of propons compressed air brake cylinder 12, under both combineds action, remove propons braking during standstill state.
When being provided with the running braking of the parking braking system of automobile that the present embodiment provides, service brake air-flow flows out from the propons brake chamber air extractor duct 9.2 of gas main brake valve 9, promote the rubber piston of two-way valve 7, open the first admission port 7.1, close the second admission port 7.2, make air-flow arrive propons compressed air brake cylinder 12, realize normal propons service brake, during the emergency brake system service brake that the present embodiment provides, propons, back axle all do not affect by braking during standstill.
When being provided with the automobile parking of the parking braking system of automobile that the present embodiment provides, hand brake valve 5 disconnects, air in the parking chamber of back axle energy storage spring brake chamber 14 and pipeline is discharged rapidly by the exhausr port of back axle parking rapid release valve 15 and hand brake valve 5, back axle realizes braking during standstill, the control mouth 6.4 of two-position three-way 6 is died simultaneously, piston moves under the action of the spring, be communicated with admission port 6.1 and the air extractor duct 6.2 of two-position three-way 6, pressurized air in air receiver 4 enters propons compressed air brake cylinder 12 again and produces braking during standstill after entering two-way valve 7, now gas control parking lock module 8 dies to keep the push rod cutting ferrule 12.1 of propons compressed air brake cylinder 12 to be lockup state, the propons braking during standstill caused because air chamber leaks gas in long-time parking is prevented to remove.The present embodiment achieves propons parking braking function, but does not affect existing brake system, increases car load braking during standstill power, improves vehicle safety.
As can be seen from the above embodiments, the utility model embodiment, by arranging two-position three-way and gas control parking lock structure, solves the problem that current propons list chamber compressed air brake cylinder cannot realize braking during standstill, improves braking performance of vehicle; In addition, the utility model embodiment realizes based on existing emergency brake system, can not change former car brake system, therefore have stronger commonality, and cost is lower.

Claims (8)

1. an automobile front axle holding brake device, is characterized in that comprising air feed module, hand brake valve, two-position three-way, two-way valve, gas main brake valve, propons compressed air brake cylinder,
Described air feed module is used for providing pressurized air;
The admission port of described hand brake valve is connected with the air extractor duct of air feed module, and its air extractor duct is connected with the admission port of back axle braking during standstill rapid release valve, the control mouth of two-position three-way;
First admission port of described two-way valve is connected with the propons brake chamber air extractor duct of gas main brake valve, and its air extractor duct is connected with propons compressed air brake cylinder;
The air extractor duct of described two-position three-way is connected with the second admission port of two-way valve, and its admission port is connected with the air extractor duct of air feed module.
2. automobile front axle holding brake device according to claim 1, characterized by further comprising the gas control parking lock module be connected with the air extractor duct of hand brake valve, described gas control parking lock module comprises gas and pushes away working cylinder, cylinder push-rod, check lever, described propons compressed air brake cylinder is provided with push rod cutting ferrule
The air extractor duct of admission port and hand brake valve that described gas pushes away working cylinder is connected, and one end and the gas of described cylinder push-rod push away working cylinder and is connected, and the other end of described cylinder push-rod is connected with check lever, and the push rod cutting ferrule of described propons compressed air brake cylinder is connected with check lever.
3. automobile front axle holding brake device according to claim 1 and 2, is characterized in that being provided with check valve between the admission port of described two-position three-way and the air extractor duct of air feed module,
The admission port of described check valve is connected with the air extractor duct of air feed module, and its air extractor duct is connected with the admission port of two-position three-way.
4. automobile front axle holding brake device according to claim 1 and 2, characterized by further comprising the propons braking rapid release valve be arranged between the air extractor duct of two-way valve and compressed air brake cylinder, the described propons braking admission port of rapid release valve is connected with the air extractor duct of two-way valve, and its air extractor duct is connected with compressed air brake cylinder.
5. automobile front axle holding brake device according to claim 1 and 2, is characterized in that the piston that the inside of described two-position three-way is provided with pull back spring and is connected with pull back spring.
6. automobile front axle holding brake device according to claim 5, is characterized in that the sectional area of described piston near one end of the control mouth of two-position three-way is greater than the sectional area of described piston near one end of the admission port of two-position three-way.
7. automobile front axle holding brake device according to claim 1; it is characterized in that described air feed module comprises air compressor, air dryer, four-loop protection valve, air receiver; described air compressor is connected with one end of air dryer; the other end of described air dryer is connected with one end of four-loop protection valve; the other end of described four-loop protection valve is connected with the admission port of air receiver, and the air extractor duct of described air receiver is the air extractor duct of air feed module.
8. a parking braking system of automobile, it comprises back axle brake equipment, and described back axle brake equipment comprises back axle braking during standstill rapid release valve, characterized by further comprising arbitrary described automobile front axle holding brake device in claim 1 to 7.
CN201520271444.9U 2015-04-29 2015-04-29 Automobile front axle holding brake device, parking braking system of automobile Withdrawn - After Issue CN204527182U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520271444.9U CN204527182U (en) 2015-04-29 2015-04-29 Automobile front axle holding brake device, parking braking system of automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520271444.9U CN204527182U (en) 2015-04-29 2015-04-29 Automobile front axle holding brake device, parking braking system of automobile

Publications (1)

Publication Number Publication Date
CN204527182U true CN204527182U (en) 2015-08-05

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CN201520271444.9U Withdrawn - After Issue CN204527182U (en) 2015-04-29 2015-04-29 Automobile front axle holding brake device, parking braking system of automobile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104760583A (en) * 2015-04-29 2015-07-08 中国重汽集团成都王牌商用车有限公司 Automobile front axle parking brake device and automobile parking brake system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104760583A (en) * 2015-04-29 2015-07-08 中国重汽集团成都王牌商用车有限公司 Automobile front axle parking brake device and automobile parking brake system

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Granted publication date: 20150805

Effective date of abandoning: 20171024