CN104265806A - Brake shoe assembly - Google Patents
Brake shoe assembly Download PDFInfo
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- CN104265806A CN104265806A CN201410493643.4A CN201410493643A CN104265806A CN 104265806 A CN104265806 A CN 104265806A CN 201410493643 A CN201410493643 A CN 201410493643A CN 104265806 A CN104265806 A CN 104265806A
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- rod body
- friction
- brake shoe
- brake
- friction lining
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Abstract
The invention discloses a brake shoe assembly. The brake shoe assembly is used for braking a vehicle by virtue of friction with a brake drum, and comprises a brake shoe and a friction lining plate, wherein the brake shoe comprises a brake body and a plurality of connection portions fixed at one side close to the friction lining plate, of the brake body; each connection portion comprises a connection rod body and a friction end head; the friction end head is fixed with one end away from the brake body, of the connection rod body; an annular bulge is arranged at the middle portion of the connection rod body; a plurality of groove channels penetrating through the thickness direction of the friction lining plate are formed in the positions corresponding the connection portions, of the friction lining plate; the length of each connection rod body is equal to that of each groove channel; the inner diameter of each groove channel is greater than the outer diameter of each connection rod body and less than the outer diameter of each annular bulge; annular grooves are formed in the positions corresponding to the annular bulges of the connection rod bodies, of the groove channels; the maximum outer diameter of each friction end head is less than the inner diameter of each groove channel; the brake shoe is fixed with the friction lining plate through the matching between the groove channels and the connection portions; the connection rod bodies are produced by an elastic material; the friction end heads are produced by hard alloy.
Description
Technical field
The present invention relates to vehicle brake apparatus technical field, particularly relate to a kind of brake shoe assembly.
Background technique
Vehicle brake is the vitals of vehicle, is the key ensureing traffic safety.Vehicle brake conventional at present comprises drum brake and disk type braker.Drum brake is primarily of component compositions such as base plate, brake drum, brake shoe, wheel cylinder, return springs.Brake drum is arranged on wheel hub, and along with wheel rotates together, when braking, wheelcylinder piston promotes brake shoe compressing brake drum, and brake drum is subject to friction eceleration, forces wheel to stop operating.Drum brake is a kind of comparatively traditional break, and because it has low price, advantages such as braking ability is good and being widely used, wherein, brake shoe is the key component of drum brake.In prior art, if Authorization Notice No. is a kind of brake shoe assembly disclosed in the model utility of " CN203477135U ", adopt the mode of riveted brake shoe and friction plate to be fixed, above-mentioned means of fixation is in order to ensure riveted intensity, usual riveted holes quantity is more, add the workload that friction plate is changed, and during riveted holes negligible amounts, the frictional force of brake shoe is restricted and causes stopping power to decline.
Summary of the invention
In order to solve the technical problem existed in background technique, the present invention proposes a kind of brake shoe assembly, achieving the improvement to brake shoe assembly structure, its friction lining board is changed convenient, and friction catch superior.
A kind of brake shoe assembly that the present invention proposes, for carrying out car brakeing with brake drum friction, comprise brake shoe and friction lining board, brake shoe comprises brake and is fixed on the some joints of above-mentioned brake near friction lining board side, joint comprises connecting-rod body and friction taps, friction taps and connecting-rod body are fixed away from brake one end, the middle part of connecting-rod body is provided with annular protrusion, friction lining board corresponding connection parts position is provided with the conduit of some through friction lining board thickness directions, the length of connecting-rod body is equal with the length of conduit, the internal diameter of conduit is greater than the external diameter of connecting-rod body and is less than the external diameter of annular protrusion, the annular protrusion position of the corresponding connecting-rod body of above-mentioned conduit is provided with annular groove, the maximum outside diameter of friction taps is less than conduit internal diameter, brake shoe is fixed with coordinating of joint by conduit with friction lining board, connecting-rod body adopts elastic material to make, friction taps adopts cemented carbide to make.
Preferably, from away from connecting-rod body one end near connecting-rod body one end, the sectional area of friction taps reduces gradually.
Preferably, the quantity of joint is 8-12.
Preferably, joint is evenly distributed on and connects on body.
Preferably, annular protrusion is less than annular protrusion with connecting-rod body away from the distance being connected body one end with connecting-rod body near the distance being connected body one end.
In above-mentioned brake shoe assembly, due to the setting of annular protrusion and annular groove, by coordinating of conduit and joint, brake shoe and friction lining board are assembled, uses riveted Placement owing to avoiding, reduce the working strength in assembling process; When brake shoe assembly is in non-brake state, because the length of connecting-rod body is equal with the length of conduit, friction taps passes the rubbing surface of friction lining board; When brake shoe assembly is in braking state, due to the effect of retrothrust, brake shoe and friction lining board are in is close to state, friction taps is in the rubbing surface of friction lining board the state of flushing, and connecting-rod body is in compressive state, simultaneously, friction taps is subject to the stress away from brake shoe direction, thus make contact friction force between friction lining board and brake drum larger, therefore, can Hoist braking hoof assembly braking state time stopping power.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of brake shoe assembly that the present invention proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of brake shoe assembly that the present invention proposes.
With reference to Fig. 1, in one embodiment, a kind of brake shoe assembly that the present invention proposes, for carrying out car brakeing with brake drum friction, comprise brake shoe 1 and friction lining board 2, brake shoe 1 comprises brake 11 and is fixed on above-mentioned brake 11 near 10 joints 12 of friction lining board 2 side and joint 12 is evenly distributed on brake 11, joint 12 comprises connecting-rod body 121 and friction taps 122, friction taps 122 and connecting-rod body 121 are fixed away from brake 11 one end, from away from connecting-rod body 121 one end near connecting-rod body 121 one end, the sectional area of friction taps 122 reduces gradually, the middle part of connecting-rod body 121 is provided with annular protrusion 3, friction lining board 2 corresponding connection parts 12 position is provided with the conduit 4 of 10 through friction lining board 2 thickness directions, the length of connecting-rod body 121 is equal with the length of conduit 4, the internal diameter of conduit 4 is greater than the external diameter of connecting-rod body 121 and is less than the external diameter of annular protrusion 3, annular protrusion 3 position of the corresponding connecting-rod body 121 of above-mentioned conduit 4 is provided with annular groove 41, the maximum outside diameter of friction taps 122 is less than conduit 4 internal diameter, brake shoe 1 is fixed with coordinating of joint 12 by conduit 4 with friction lining board 2, connecting-rod body 121 adopts elastic material to make, friction taps 122 adopts cemented carbide to make.
In the above-described embodiments, due to the setting of annular protrusion 3 and annular groove 41, by coordinating of conduit 4 and joint 12, brake shoe 1 and friction lining board 2 are assembled, uses riveted Placement owing to avoiding, reduce the working strength in assembling process; When brake shoe assembly is in non-brake state, because the length of connecting-rod body 121 is equal with the length of conduit 4, friction taps 122 passes the rubbing surface of friction lining board 2; When brake shoe assembly is in braking state, due to the effect of retrothrust, brake shoe 1 and friction lining board 2 are in is close to state, friction taps 122 is in the rubbing surface of friction lining board 2 state of flushing, and connecting-rod body 121 is in compressive state, simultaneously, friction taps 122 is subject to the stress away from brake shoe 1 direction, thus make contact friction force between friction lining board 2 and brake drum larger, therefore, can Hoist braking hoof assembly braking state time stopping power.
In the technological scheme improved further, annular protrusion 3 is less than annular protrusion 3 with connecting-rod body 121 away from the distance being connected body one end with connecting-rod body 121 near the distance being connected body one end, due to, when friction lining board 2 wears up to annular groove 41 place, representative needs to change friction lining board 2, and above-mentioned design can make friction lining board 2 be utilized more fully.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technological scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a brake shoe assembly, for carrying out car brakeing with brake drum friction, it is characterized in that, comprise brake shoe (1) and friction lining board (2), brake shoe (1) comprises brake (11) and is fixed on the some joints (12) of above-mentioned brake (11) near friction lining board (2) side, joint (12) comprises connecting-rod body (121) and friction taps (122), friction taps (122) and connecting-rod body (121) are fixed away from brake (11) one end, the middle part of connecting-rod body (121) is provided with annular protrusion (3), friction lining board (2) corresponding connection parts (12) position is provided with the conduit (4) of some through friction lining board (2) thickness directions, the length of connecting-rod body (121) is equal with the length of conduit (4), the internal diameter of conduit (4) is greater than the external diameter of connecting-rod body (121) and is less than the external diameter of annular protrusion (3), annular protrusion (3) position of above-mentioned conduit (4) corresponding connecting-rod body (121) is provided with annular groove (41), the maximum outside diameter of friction taps (122) is less than conduit (4) internal diameter, brake shoe (1) is fixed with coordinating of joint (12) by conduit (4) with friction lining board (2), connecting-rod body (121) adopts elastic material to make, friction taps (122) adopts cemented carbide to make.
2. brake shoe assembly according to claim 1, is characterized in that, from away from connecting-rod body 121 one end near connecting-rod body (121) one end, the sectional area of friction taps (122) reduces gradually.
3. brake shoe assembly according to claim 1, is characterized in that, the quantity of joint (12) is 8-12.
4. brake shoe assembly according to claim 1, is characterized in that, joint (12) is evenly distributed on and connects on body.
5. brake shoe assembly according to claim 1, it is characterized in that, annular protrusion (3) is less than annular protrusion (3) with connecting-rod body (121) away from the distance being connected body one end with connecting-rod body (121) near the distance being connected body one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493643.4A CN104265806B (en) | 2014-09-24 | 2014-09-24 | A kind of brake shoe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493643.4A CN104265806B (en) | 2014-09-24 | 2014-09-24 | A kind of brake shoe assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265806A true CN104265806A (en) | 2015-01-07 |
| CN104265806B CN104265806B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410493643.4A Active CN104265806B (en) | 2014-09-24 | 2014-09-24 | A kind of brake shoe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265806B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233368A1 (en) * | 1972-07-07 | 1974-01-24 | Jurid Werke Gmbh | DRUM BRAKE |
| CN203051555U (en) * | 2012-12-06 | 2013-07-10 | 重庆市双桥区中帝汽车配件制造有限公司 | Drum brake assembly of medium trucks and heavy trucks |
| CN204061660U (en) * | 2014-09-24 | 2014-12-31 | 安徽贵达汽车部件有限公司 | A kind of brake shoe assembly |
-
2014
- 2014-09-24 CN CN201410493643.4A patent/CN104265806B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233368A1 (en) * | 1972-07-07 | 1974-01-24 | Jurid Werke Gmbh | DRUM BRAKE |
| CN203051555U (en) * | 2012-12-06 | 2013-07-10 | 重庆市双桥区中帝汽车配件制造有限公司 | Drum brake assembly of medium trucks and heavy trucks |
| CN204061660U (en) * | 2014-09-24 | 2014-12-31 | 安徽贵达汽车部件有限公司 | A kind of brake shoe assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104265806B (en) | 2016-08-24 |
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