CN2551804Y - Powder metallurgical braking plate - Google Patents
Powder metallurgical braking plate Download PDFInfo
- Publication number
- CN2551804Y CN2551804Y CN 02239769 CN02239769U CN2551804Y CN 2551804 Y CN2551804 Y CN 2551804Y CN 02239769 CN02239769 CN 02239769 CN 02239769 U CN02239769 U CN 02239769U CN 2551804 Y CN2551804 Y CN 2551804Y
- Authority
- CN
- China
- Prior art keywords
- brake
- steel backing
- brake pad
- sintering
- powder metallurgy
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a powder metallurgical brake sheet, consisting of a steel backing (2). One or more friction blocks molded of metal powder (3) are sintered on one side of the steel backing (2). A metal-sintered structural layer with a low melting point is arranged between the friction block (3) and the steel backing (2) and the outer flank of the friction block (3) is covered by a steel mesh (4). Compared with the prior art, the brake sheet of the utility model has simple structure, convenient manufacture, low cost, excellent braking performance, security and reliability.
Description
Technical field
The utility model relates to a kind of Multiple disc brake powder metallurgy brake flat.
Background technique
Brake block or brake shoe are a kind of parts that are used for railway locomotive, car brakeing.The brake block that tradition is used has two types, promptly synthetic brake block and powder metallurgy brake flat.Synthetic brake block is to be the brake block that main warp hot pressing forms with materials such as resin, asbestos, graphite, iron powder, barium sulphate, and powder metallurgy brake flat is to be matrix, additional one or more other metals and nonmetal composition and the brake block that forms by mixing, compacting and sintering with the metal.Synthetic brake block contains asbestos component, and its heat dispersion is poor, and thermal capacity is low, produces the easy carbonization of high temperature when braking at a high speed, thereby loses brake function, and environment is had pollution.Raising along with locomotive speed, to the brake block demands for higher performance, promptly require brake block not only to have good braking ability, and require the braking antithesis---dish is not to producing irregular wear and damage, free from environmental pollution, powder metallurgy brake flat then can satisfy above-mentioned requirements.The powder metallurgy brake flat of existing Multiple disc brake, its friction piece direct sintering are on steel backing, but friction piece usually takes place this structure stressedly falls the piece phenomenon.
The content of model utility
The purpose of this utility model is exactly the above-mentioned deficiency that overcomes prior art, provides that a kind of structure and manufacturing process are simple, cost of production is low, good braking effect, does not fall the powder metallurgy brake flat of piece.
Powder metallurgy brake flat of the present utility model comprises a steel backing, side sintering at steel backing has at least one brake pad by the metallic dust moulding, have low melting metal sintering structure layer between brake pad and the steel backing, and be coated with a steel mesh in the brake pad outside.
Compare the utility model brake block simple in structure, easily manufactured with prior art, cost is low, and has more performance than synthetic brake block, its mechanical strength height, good heat resistance, wear-resisting and heat resistanceheat resistant decline function admirable, long service life is little to taking turns right wearing and tearing, stable friction performance, brake noise is low, pollution is little, has especially used the protection steel mesh, makes the performance of brake block can be guaranteed fully.
Description of drawings
Accompanying drawing 1 is the plan view of the utility model brake block;
Accompanying drawing 2 is left views of Fig. 1 brake block broken section;
Accompanying drawing 3 is rear views of Fig. 1 brake block.
Each numbering expression in the accompanying drawing: 1 wild goose tailgate, 2 steel backing, 3 brake pads, 4 steel meshes.
Embodiment
As Figure 1-3, powder metallurgy brake flat of the present utility model comprises a steel backing 2, side sintering at steel backing 2 has at least one brake pad 3 by the metallic dust moulding, have low melting metal sintering structure layer between brake pad 3 and the steel backing 2, and be coated with a steel mesh (wire netting) 4 in brake pad 3 outsides.
Evidence, brake block of the present utility model can satisfy the requirement of car brakeing fully, and has more performance than synthetic brake block, its mechanical strength height, good heat resistance, wear-resisting and heat resistanceheat resistant decline function admirable, long service life is little to taking turns right wearing and tearing, stable friction performance, brake noise is low, pollution is little, has especially used the protection steel mesh, makes the performance of brake block can be guaranteed fully.
Another advantage of using steel mesh 4 is that brake pad coats easily, and can reduce the weight of clad.
Described steel mesh can be with sheet metal or sheet copper manufacturing, also can steel wire or copper mesh manufacturing.
In a preferred embodiment of the present utility model, also have the sintering structure layer between described steel mesh 4 and the steel backing 2, this sintering structure layer and described low melting metal sintering structure layer are the same construction layer of while sintering.The advantage of this structure is further to have improved the integrity or the bulk strength of brake block, and it carries out once sintered, just can realize simultaneously that brake pad 3, steel mesh 4 are connected the manufacturing efficiency height with steel backing 2.
In brake block of the present utility model, also comprise a low melting metal infiltration structure layer in the described brake pad 3 near described low melting metal sinter layer, that is, low melting metal infiltrates through in the brake pad matrix when sintering, thereby has guaranteed that further brake pad does not come off.
In order to install, can be at the opposite side intermediate portion of steel backing 2 welding wild goose tailgate 1.
The location of brake pad 3 on steel backing 2 and the further join strength that improves brake pad and steel backing during for convenience of sintering, described steel backing 2 can have brake pad sintering position structure (not shown) at its position that is connected with brake pad 3.
Described brake pad position structure can be and the corresponding groove of the sectional shape of described each brake pad (end illustrates).
Described groove also can be the stepped groove (not shown).
In the utility model, described friction material block is preferably polylith, as the 8-11 piece, is 9 in the accompanying drawing, and it is shaped as cylindrical, is beneficial to manufacturing, heat radiation and steel mesh protection.
Above-mentioned description with reference to drawings and Examples is just illustrative, and does not constitute qualification of the present utility model.Obviously, on basis of the present utility model, can carry out many modification, but not break away from its essence.
Claims (7)
1, a kind of powder metallurgy brake flat, it comprises a steel backing (2), it is characterized in that, side sintering at steel backing (2) has at least one brake pad by the metallic dust moulding (3), have low melting metal sintering structure layer between brake pad (3) and the steel backing (2), and be coated with a steel mesh (4) in brake pad (3) outside.
2, powder metallurgy brake flat according to claim 1 is characterized in that, has the sintering structure layer between described steel mesh (4) and the steel backing (2), and this sintering structure layer and described low melting metal sintering structure layer are the same construction layer of while sintering.
3, powder metallurgy brake flat according to claim 1 and 2 is characterized in that, described brake pad (3) also comprises the low melting metal infiltration structure layer near described low melting metal sinter layer.
4, powder metallurgy brake flat according to claim 1 and 2 is characterized in that, is welded with wild goose tailgate (1) in the opposite side intermediate portion of steel backing (2).
5, powder metallurgy brake flat according to claim 1 and 2 is characterized in that, described steel backing (2) has brake pad sintering position structure at the position that it is connected with brake pad (3).
6, powder metallurgy brake flat according to claim 5 is characterized in that, described brake pad position structure is the corresponding groove of sectional shape (2) (5) with described each brake pad.
7, powder metallurgy brake flat according to claim 6 is characterized in that, described groove is a stepped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239769 CN2551804Y (en) | 2002-07-10 | 2002-07-10 | Powder metallurgical braking plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239769 CN2551804Y (en) | 2002-07-10 | 2002-07-10 | Powder metallurgical braking plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2551804Y true CN2551804Y (en) | 2003-05-21 |
Family
ID=33713048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02239769 Expired - Fee Related CN2551804Y (en) | 2002-07-10 | 2002-07-10 | Powder metallurgical braking plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2551804Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823148A (en) * | 2010-05-17 | 2010-09-08 | 江苏滔海机械制造有限公司 | Once-fired molding process for powder metallurgy brake shoes |
| TWI420030B (en) * | 2006-10-25 | 2013-12-21 | Akebono Brake Ind | A friction plate assembly for disc brakes |
-
2002
- 2002-07-10 CN CN 02239769 patent/CN2551804Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI420030B (en) * | 2006-10-25 | 2013-12-21 | Akebono Brake Ind | A friction plate assembly for disc brakes |
| TWI420029B (en) * | 2006-10-25 | 2013-12-21 | Akebono Brake Ind | A friction plate assembly for disc brakes |
| CN101823148A (en) * | 2010-05-17 | 2010-09-08 | 江苏滔海机械制造有限公司 | Once-fired molding process for powder metallurgy brake shoes |
| CN101823148B (en) * | 2010-05-17 | 2011-07-20 | 江苏滔海机械制造有限公司 | Once-fired molding process for powder metallurgy brake shoes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |