CN107575512A - A kind of friction plate return mechanism and the air-pressure disc brake with the mechanism - Google Patents
A kind of friction plate return mechanism and the air-pressure disc brake with the mechanism Download PDFInfo
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- CN107575512A CN107575512A CN201710679799.5A CN201710679799A CN107575512A CN 107575512 A CN107575512 A CN 107575512A CN 201710679799 A CN201710679799 A CN 201710679799A CN 107575512 A CN107575512 A CN 107575512A
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- friction plate
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- brake
- vent line
- tracheae
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- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000002912 waste gas Substances 0.000 claims abstract description 8
- 239000012634 fragment Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The purpose of the present invention is to propose to a kind of friction plate return mechanism simple in construction, not interfering with friction disc brake motive force and with the return mechanism air-pressure disc brake.The friction plate return mechanism of the present invention by tracheae, be oppositely arranged and relatively-movable two panels friction plate, the brake disc between two panels friction plate are formed；Friction plate is provided with vent line, vent line backwards to the side of brake disc be along the axially extending air inlet section of friction plate, vent line towards the side of brake disc be air outlet section；Tracheae on the outside of friction plate by stretching in the air inlet section of vent line.Air accumulator in the air-pressure disc brake of the present invention is connected with braking the air inlet of distributing valve, the gas outlet of braking distributing valve is connected with brake chamber, and braking distributing valve is controlled by brake pedal, by compressed gas come band moving calipers, so as to drive friction plate to relatively move, braking is realized；Key is that the inlet end of the tracheae of the friction plate return mechanism is connected with braking the waste gas outlet of distributing valve.
Description
Technical field
The invention belongs to automobile chassis brake application technical field, and in particular to the brakes of automobile.
Background technology
With the development of technology, air-pressure disc brake is increasingly used in large-scale commercial car, to replace passing
The drum brake of system.For drum brake, air-pressure disc brake has preferable stability, character of heat-fading energy.
But unique deficiency is that the return of the friction plate of air-pressure disc brake utilizes the rotation of brake disc using natural return
Friction plate is returned, without the structure of active return, so will result in following problems：Deposited all the time between friction plate and brake disc
Dawdling, a series of problems, such as this can cause friction disc wear, noise, oil consumption increase.
In order to solve the above problems, technical staff is additionally arranged the return mechanism of friction plate on air-pressure disc brake,
The return of friction plate is mainly controlled using spring, such as " the air pressure disclosed in the patent of Patent No. 201510437414.5
Disk brake and its friction plate active return method ", the and " gas disclosed in Patent No. 201420665802.X patent
Press disc type brake automatic resetting device " etc., but this mode adds the air pressure of brake chamber required during skidding
Pressure（Because overcome the elastic force of return spring）, while make it that the assembling of air-pressure disc brake is more complicated, therefore, it is difficult to
Promote the use of.
The content of the invention
First purpose of the present invention is to propose a kind of friction plate simple in construction, not interfering with friction disc brake motive force
Return mechanism.
The present invention friction plate return mechanism by tracheae, be oppositely arranged and relatively-movable two panels friction plate, positioned at two
Brake disc between piece friction plate is formed；The friction plate is provided with vent line, the vent line backwards to brake disc one
Side be along the axially extending air inlet section of friction plate, vent line towards the side of brake disc be air outlet section；The tracheae is by rubbing
Stretched on the outside of piece in the air inlet section of vent line.
The return principle of above-mentioned friction plate return mechanism is as follows：
Tracheae is connected with source of the gas, when gas source feed, gas is blown into vent line from tracheae, and is finally blowed to along vent line
Brake disc, air-flow can only flow out along the gap between brake disc and friction plate, because brake disc is fixed, therefore air-flow
Reaction force friction plate can be promoted to be moved to the direction away from brake disc, realize the function of friction plate return.Further, since enter
Gas section is axially extending along friction plate, therefore tracheae can't influence the axial movement of friction plate.The friction plate return mechanism
In tracheae do not contacted directly with friction plate, do not influence security, though return system fail, do not influence brakes in itself
Work.
Further, the air outlet section of the vent line is bell mouth shape structure, and bell mouth shape structure can utilize at this
The chamfering of vent line end is formed, and bell mouth shape structure can make to form a cavity between friction plate and brake disc, is being needed
When wanting friction plate return, the air-flow of tracheae can be flowed into the cavity quickly, to the side wall of cavity during Diffusion of gas stream
（The medial surface of friction plate）Apply larger reaction force, promote friction plate return.
Further, the outlet fragment position of the vent line on the two panels friction plate is relative, so that two panels friction plate returns
Keep strokes position.
Further, the diameter of the tracheae is slightly less than the diameter of the air inlet section of vent line, to reduce from tracheae with leading to
Gap flows to the gas flow on the outside of friction plate between air pipe, so as to improve the active force of gas push friction plate return.
Further, the vent line is straight structure, and the diameter of the tracheae is more than the air outlet section of vent line
Diameter, can so increase flow velocity of the air-flow in the air outlet section of vent line, be acted on so as to increase gas on friction plate
Return active force, in addition, when friction plate returns to precalculated position, the air outlet section of vent line will offset with tracheae, such gas
Pipe can also play a part of limit friction piece.
Second object of the present invention is to propose a kind of air-pressure disc brake with above-mentioned friction plate return mechanism.
The air-pressure disc brake structure of the present invention is as follows：Air accumulator and braking distributing valve in air-pressure disc brake
Air inlet is connected, and the gas outlet for braking distributing valve is connected with brake chamber, and braking distributing valve is controlled by brake pedal, passes through compression
Gas carrys out band moving calipers, so as to drive friction plate to relatively move, realizes braking；Key is the gas of the friction plate return mechanism
The inlet end of pipe is connected with braking the waste gas outlet of distributing valve.
The operation principle of above-mentioned air-pressure disc brake is as follows：
Braking procedure：When driver's brake pedal, the A-B passages in braking distributing valve are opened, are stored in air accumulator
Compressed gas brake chamber is entered by pipeline, and two panels friction plate is promoted by brake caliper, friction plate is fitted in system
On Moving plate, braking is realized.
Return process：Work as end of braking, when driver unclamps pedal, the B-C paths for braking distributing valve are opened, brake chamber
Interior compressed gas flows through the waste gas outlet of braking distributing valve by pipeline, then passes through the ventilation in tracheae and friction plate
Gas is blowed to brake disc by pipeline, because brake disc is fixed, and friction plate is to float, in the reaction force acts of air-flow
Under, friction plate moves to the direction away from brake disc, realizes active return.During return, air-flow is also to friction plate shape
Into cooling effect.
Above-mentioned air-pressure disc brake will discharge residual gas after being braked using Pneumatic braking system（I.e. in brake chamber
Gases at high pressure）This characteristic, these remaining gases are introduced between friction plate and brake disc by pipeline, air-flow directly blows to
Brake disc, using the reaction force of airflow function, friction plate is pushed open backward, realizes return, can thus brake knot every time
Beam, it can all realize the active return of a friction plate.
Further, tracheae is connected by triple valve with main tracheae corresponding to two friction plates, the main tracheae and braking
The waste gas outlet of distributing valve is connected, the stress of such two panels friction plate be while, therefore return is also synchronously to carry out, and is avoided
Because monolithic friction plate return is very fast, and another friction plate can not obtain sufficient air-flow supply and lead to not the feelings of return
Shape.
Friction plate return mechanism of the invention is simple in construction, cost is low, safe, suitable for all Pneumatic disc type systems
Dynamic device, Rapid transplant can be realized in new product, existing product can also be transformed；Using the friction plate return mechanism
Air-pressure disc brake do not increase extras, influence friction disc brake motive force on the premise of realize self-return work(
Can, so as to solve the problems, such as to be dawdled between friction plate and brake disc, extend the service life of friction plate.
Brief description of the drawings
Fig. 1 is the structural representation of the friction plate return mechanism of the present invention.
Fig. 2 is the sectional view of the friction plate return mechanism of the present invention（Arrow is air flow in figure）.
Fig. 3 is the air-pressure disc type brake system schematic of the present invention.
Accompanying drawing indicates：1st, tracheae；2nd, friction plate；3rd, brake disc；4th, vent line；5th, air accumulator；6th, distributing valve is braked；7、
Brake chamber；8th, brake pedal；9th, clamp；10th, triple valve；11st, main tracheae.
Embodiment
Below against accompanying drawing, by the description to embodiment, for example involved to the embodiment of the present invention is each
Mutual alignment and annexation, the effect of each several part and operation principle between the shape of component, construction, each several part etc. are made into one
The detailed description of step.
Embodiment 1：
As shown in Figure 1, 2, the friction plate return mechanism of the present embodiment by tracheae 1, be oppositely arranged and relatively-movable two panels is rubbed
Pad 2, the brake disc 3 between two panels friction plate 2 are formed；Run through the breather pipe provided with straight-tube shape on every friction plate 2
Road 4, the position of the vent line 4 on two panels friction plate 2 are relative；Vent line 4 is axially extending along friction plate 2, tracheae 1 it is straight
Footpath is slightly less than the diameter of vent line 4, and tracheae 1 is stretched in vent line 4 by the outside of friction plate 2, and vent line 4 is towards system
The side of Moving plate 3 is bell mouth shape structure.In the present embodiment, the tracheae 1 corresponding to two panels friction plate by triple valve 10 with
Main tracheae 11 connects.
The return principle of the above-mentioned return mechanism of friction plate 2 is as follows：
Tracheae 1 is connected with source of the gas, when gas source feed, gas is blown into vent line 4 from tracheae 1, and finally along vent line 4
Blow to brake disc 3, air-flow can only flow out along the gap between brake disc 3 and friction plate 2, due to brake disc 3 be it is fixed,
Therefore the reaction force of air-flow can promote friction plate 2 to be moved to the direction away from brake disc 3, realize the function of the return of friction plate 2.
Further, since air inlet section is axially extending along friction plate 2, therefore tracheae 1 can't influence the axial movement of friction plate 2.Should
Tracheae 1 in the return mechanism of friction plate 2 does not contact directly with friction plate 2, does not influence security, even if return system fails,
The work of brakes in itself is not influenceed.
The air outlet section of vent line 4 uses bell mouth shape structure, can make to form one between friction plate 2 and brake disc 3
Cavity, when needing 2 return of friction plate, the air-flow of tracheae 1 can be flowed into the cavity quickly, during Diffusion of gas stream to
The side wall of cavity（The medial surface of friction plate 2）Apply larger reaction force, promote the return of friction plate 2.
The air-pressure disc brake structure of the present embodiment is as follows：Air accumulator 5 in air-pressure disc brake distributes with braking
The air inlet of valve 6（A mouths）It is connected, brakes the gas outlet of distributing valve 6（B mouths）It is connected with brake chamber 7, braking distributing valve 6 is by making
Dynamic pedal 8 controls, by compressed gas come band moving calipers 9, so as to drive friction plate 2 to relatively move, realization braking；Two frictions
Tracheae 1 corresponding to piece 2 is connected by triple valve 10 with main tracheae 11, the waste gas outlet of the main tracheae 11 and braking distributing valve 6
（C mouths）It is connected.Above-mentioned air accumulator 5, braking distributing valve 6, brake chamber 7, brake pedal 8, clamp 9, the annexation of friction plate 2
Identical with traditional air-pressure disc brake, here is omitted.
The operation principle of above-mentioned air-pressure disc brake is as follows：
Braking procedure：When driver's brake pedal 8, after opening the A-B passages in braking distributing valve 6, air accumulator 5 is stored in
In compressed gas brake chamber 7 is entered by pipeline, and two panels friction plate 2 is promoted by brake caliper 9, pastes friction plate 2
Close in brake disc 3, realize braking.
Return process：Work as end of braking, driver is loosened the brake after 8, and the B-C paths of braking distributing valve 6 are opened, system
The compressed gas taken offence in room 7 flows through the waste gas outlet of braking distributing valve 6 by pipeline, then passes through tracheae 1 and friction
Gas is blowed to brake disc 3 by the vent line 4 in piece 2, because brake disc 3 is fixed, and friction plate 2 is to float, in gas
Under the reaction force acts of stream, friction plate 2 moves to the direction away from brake disc 3, realizes active return.In return process
In, air-flow also forms cooling effect to friction plate 2.
The stress of so two panels friction plate be while, therefore return is also synchronously to carry out, and is avoided because of monolithic friction
Piece return is very fast, and another friction plate can not obtain sufficient air-flow supply and lead to not the situation of return.
Claims (7)
1. a kind of friction plate return mechanism, it is characterised in that by tracheae, be oppositely arranged and relatively-movable two panels friction plate, position
Brake disc between two panels friction plate is formed；The friction plate is provided with vent line, and the vent line is backwards to brake disc
Side be along the axially extending air inlet section of friction plate, vent line towards the side of brake disc be air outlet section；The tracheae by
Stretched on the outside of friction plate in the air inlet section of vent line.
2. friction plate return mechanism according to claim 1, it is characterised in that the air outlet section of the vent line is loudspeaker
Mouth shape structure.
3. friction plate return mechanism according to claim 1, it is characterised in that the vent line on the two panels friction plate
Outlet fragment position it is relative.
4. according to the friction plate return mechanism described in claim 1 or 2 or 3, it is characterised in that the diameter of the tracheae is slightly less than
The diameter of the air inlet section of vent line.
5. friction plate return mechanism according to claim 4, it is characterised in that the vent line is straight structure, institute
State diameter of the diameter more than the air outlet section of vent line of tracheae.
6. there is the air-pressure disc brake of the friction plate return mechanism described in claim 1, the storage in air-pressure disc brake
Gas tank is connected with braking the air inlet of distributing valve, and the gas outlet for braking distributing valve is connected with brake chamber, and braking distributing valve is by making
Dynamic pedal control, by compressed gas come band moving calipers, so as to drive friction plate to relatively move, realization braking；It is characterized in that
The inlet end of the tracheae of the friction plate return mechanism is connected with braking the waste gas outlet of distributing valve.
7. air-pressure disc brake according to claim 6, it is characterised in that tracheae corresponding to two friction plates passes through three
Port valve is connected with main tracheae, and the main tracheae is connected with braking the waste gas outlet of distributing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679799.5A CN107575512B (en) | 2017-08-10 | 2017-08-10 | Friction plate return mechanism and air pressure disc brake with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679799.5A CN107575512B (en) | 2017-08-10 | 2017-08-10 | Friction plate return mechanism and air pressure disc brake with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575512A true CN107575512A (en) | 2018-01-12 |
| CN107575512B CN107575512B (en) | 2021-08-31 |
Family
ID=61035615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679799.5A Active CN107575512B (en) | 2017-08-10 | 2017-08-10 | Friction plate return mechanism and air pressure disc brake with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575512B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139745A (en) * | 2018-09-30 | 2019-01-04 | 四川德胜集团钒钛有限公司 | A kind of cold shears brake |
| CN113819167A (en) * | 2020-06-18 | 2021-12-21 | 比亚迪股份有限公司 | Braking return device |
| CN113815579A (en) * | 2020-06-18 | 2021-12-21 | 比亚迪股份有限公司 | Braking device |
| CN113815586A (en) * | 2020-06-18 | 2021-12-21 | 比亚迪股份有限公司 | Brake system and brake system control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB799577A (en) * | 1953-11-28 | 1958-08-13 | Otto Hilger | Improvements in or relating to disk brakes for vehicles, in particular for motor vehicles |
| US3862675A (en) * | 1973-08-15 | 1975-01-28 | Bendix Corp | Fluid injection antiskid brake system |
| KR20050043382A (en) * | 2003-11-06 | 2005-05-11 | 현대자동차주식회사 | Pad return device of brake system in vehicle |
| CN205136432U (en) * | 2015-12-03 | 2016-04-06 | 泉州市力将机件企业有限公司 | But rapid cooling's dish is stopped |
| CN206125050U (en) * | 2016-08-09 | 2017-04-26 | 山东科技大学 | Vapour -pressure type electrical mining locomotive braking control device |
-
2017
- 2017-08-10 CN CN201710679799.5A patent/CN107575512B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB799577A (en) * | 1953-11-28 | 1958-08-13 | Otto Hilger | Improvements in or relating to disk brakes for vehicles, in particular for motor vehicles |
| US3862675A (en) * | 1973-08-15 | 1975-01-28 | Bendix Corp | Fluid injection antiskid brake system |
| KR20050043382A (en) * | 2003-11-06 | 2005-05-11 | 현대자동차주식회사 | Pad return device of brake system in vehicle |
| CN205136432U (en) * | 2015-12-03 | 2016-04-06 | 泉州市力将机件企业有限公司 | But rapid cooling's dish is stopped |
| CN206125050U (en) * | 2016-08-09 | 2017-04-26 | 山东科技大学 | Vapour -pressure type electrical mining locomotive braking control device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139745A (en) * | 2018-09-30 | 2019-01-04 | 四川德胜集团钒钛有限公司 | A kind of cold shears brake |
| CN113819167A (en) * | 2020-06-18 | 2021-12-21 | 比亚迪股份有限公司 | Braking return device |
| CN113815579A (en) * | 2020-06-18 | 2021-12-21 | 比亚迪股份有限公司 | Braking device |
| CN113815586A (en) * | 2020-06-18 | 2021-12-21 | 比亚迪股份有限公司 | Brake system and brake system control method |
| CN113815579B (en) * | 2020-06-18 | 2024-02-27 | 比亚迪股份有限公司 | Braking device |
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| Publication number | Publication date |
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| CN107575512B (en) | 2021-08-31 |
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