CN114810881A - Dovetail type brake pad - Google Patents
Dovetail type brake pad Download PDFInfo
- Publication number
- CN114810881A CN114810881A CN202210403114.5A CN202210403114A CN114810881A CN 114810881 A CN114810881 A CN 114810881A CN 202210403114 A CN202210403114 A CN 202210403114A CN 114810881 A CN114810881 A CN 114810881A
- Authority
- CN
- China
- Prior art keywords
- plate
- friction
- dovetail
- brake pad
- steel
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D69/0408—Attachment of linings specially adapted for plane linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/0433—Connecting elements not integral with the braking member, e.g. bolts, rivets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a dovetail type brake pad, which comprises a dovetail plate, a steel back, a spring buckle and friction plates, wherein each friction plate comprises a back plate and a friction body, the dovetail plate and the friction plates are arranged on two sides of the steel back, a plurality of friction plate mounting through holes are formed in the steel back, each friction plate mounting through hole comprises a back plate positioning hole and a spring buckle mounting counter bore which are arranged on two sides of the steel back, a positioning boss matched with the back plate positioning hole is arranged on one side of the back plate, a connecting boss with a clamping groove is arranged on the positioning boss, and the spring buckle is mounted in the spring buckle mounting counter bore and clamped with the clamping groove. According to the invention, the friction plate and the steel backing are assembled together through the tensioning force of the spring buckle, and meanwhile, the positioning boss is arranged on the back plate of the friction plate and assembled with the back plate positioning hole on the steel backing, so that the friction force shearing resistance of the friction plate is improved; meanwhile, the use of rivets on the brake pad is reduced, the production efficiency of the brake pad is improved, and the quality safety risk is reduced.
Description
Technical Field
The invention relates to the technical field of high-speed train braking, in particular to a dovetail type brake pad.
Background
The braking device is an important device for the safe deceleration or stop of the train, and in order to ensure the safety of the train, the braking performance of the train must be ensured under various conditions. With the continuous improvement of the running speed of the train, the requirement on the braking performance of the braking device is higher.
Chinese patent CN203796811U discloses a brake pad with a dovetail plate, wherein, the friction plate is riveted on the steel backing by a single rivet, and is susceptible to falling-off accidents due to impact, heavy load and the like during use. Furthermore, the excessive rivet riveting process has low production efficiency and great quality guarantee difficulty.
Disclosure of Invention
The present invention aims to provide a dovetail type brake pad to solve the above problems.
In order to achieve the purpose, the invention discloses a dovetail type brake pad which comprises a dovetail plate, a steel back, a spring buckle and friction plates, wherein each friction plate comprises a back plate and a friction body, the dovetail plate and the friction plates are installed on two sides of the steel back, a plurality of friction plate installation through holes are formed in the steel back, each friction plate installation through hole comprises a back plate positioning hole and a spring buckle installation counter bore which are formed in two sides of the steel back, a positioning boss matched with the back plate positioning hole is arranged on one side of the back plate, a connecting boss with a clamping groove is arranged on the positioning boss, and the spring buckle is installed in the spring buckle installation counter bore and clamped with the clamping groove.
Furthermore, the friction plates are in a prism structure, and the side surfaces of the adjacent friction plates are mutually abutted so as to mutually lock the friction plates.
Furthermore, the friction plates comprise a hexagonal prism friction plate and a pentagonal prism friction plate, the hexagonal prism friction plate and the pentagonal prism friction plate are arranged on two sides of the symmetrical surface of the steel back, and the pentagonal prism friction plates on the two sides of the symmetrical surface are connected in a leaning mode along the symmetrical surface.
Furthermore, a friction body hole is formed in the middle of the friction body and penetrates through the back plate.
Furthermore, a clamping groove is formed in the other side of the back plate, and one side of the friction body is fixedly embedded in the clamping groove.
Furthermore, the clamping groove is an annular dovetail groove, and the annular dovetail groove and the positioning boss are concentrically arranged.
Further, still be provided with forked tail board ladder hole on the forked tail board, be provided with the steel backing ladder hole on the steel backing, forked tail board and steel backing pass through the riveting and are in rivet connection in forked tail board ladder hole and the steel backing ladder hole.
Furthermore, the clamping groove is an annular groove formed in the annular connecting boss.
Compared with the prior art, the invention has the advantages that:
according to the invention, the friction plate and the steel backing are assembled together through the tensioning force of the spring buckle, and meanwhile, the positioning boss is arranged on the back plate of the friction plate and assembled with the back plate positioning hole on the steel backing, so that the friction force shearing resistance of the friction plate is improved; meanwhile, the use of rivets on the brake pad is reduced, the production efficiency of the brake pad is improved, and the quality safety risk is reduced.
Furthermore, the brake pad is designed into an axisymmetric structure and is formed by assembling a plurality of friction plates, and the friction plates can be mutually locked, so that the friction plates are prevented from rotating during braking, and the braking performance of the brake pad is effectively ensured; and the friction area of a single friction plate is small, the forming pressure required during powder press forming is smaller, and the tissue production is facilitated.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an axial schematic view of a dovetail brake pad disclosed in a preferred embodiment of the present invention;
FIG. 2 is a schematic front view of a dovetail brake pad disclosed in a preferred embodiment of the present invention;
FIG. 3 is a schematic sectional view A-A of FIG. 2;
FIG. 4 is a rear schematic view of a dovetail brake pad disclosed in a preferred embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view B-B of FIG. 4;
FIG. 6 is a schematic front view of a steel backing according to the preferred embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view C-C of FIG. 6;
FIG. 8 is a cross-sectional schematic view of a friction plate as disclosed in a preferred embodiment of the present invention.
Illustration of the drawings:
1. a dovetail plate; 11. a dovetail plate stepped hole; 2. a steel backing; 21. the friction plate is provided with a through hole; 211. a back plate positioning hole; 212. a spring buckle is provided with a counter bore; 22. a plane of symmetry; 23. a steel backing stepped hole; 3. a spring buckle; 4. riveting; 5. a friction plate; 51. a back plate; 511. positioning the boss; 512. a card slot; 513. connecting the bosses; 514. an annular dovetail groove; 52. a friction body; 521. a friction body hole.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1-8, the embodiment of the invention discloses a dovetail brake pad, which is assembled by a dovetail plate 1, a steel back 2, a spring buckle 3, a rivet 4 and a friction plate 5. Friction disc 5 designs into a plurality of, under the circumstances of guaranteeing the total friction area of brake lining, the friction area of single friction disc 5 diminishes, and during powder press forming, the suppression pressure reduces, has made things convenient for production.
The brake pad is designed to be symmetrical relative to the symmetrical plane 22, the friction plates 5 comprise hexagonal prism friction plates and pentagonal prism friction plates, the symmetrical plane 22 is symmetrically arranged on the steel backing 2, specifically, the hexagonal prism friction plates and the pentagonal prism friction plates are arranged on two sides of the symmetrical plane 22 of the steel backing 2, and the pentagonal prism friction plates on two sides of the symmetrical plane 22 are connected in an abutting mode along the symmetrical plane 22. Relative to the overall arrangement as a hexagonal prism friction plate. On one hand, the hexagonal prism friction plate and the pentagonal prism friction plate can better utilize the space on the steel backing 2; on the other hand, the pentagonal prism friction plates on the two sides of the symmetrical plane 22 can realize complete abutting and locking of the side surfaces, and the locking effect is better. The side surfaces of the friction plates 5 are mutually abutted and locked, so that the friction plates 5 cannot rotate, and the braking performance of the brake pad is effectively ensured. Friction disc 5 is provided with friction body hole 521, and friction body hole 521 runs through backplate 51, and density distribution is even when can ensure powder press forming, is favorable to the chip removal simultaneously among the brake lining braking process.
In this embodiment, the steel backing 2 is designed with a certain number of steel backing stepped holes 23 and friction plate mounting through holes 21. The steel backing stepped hole 23 is used for the rivet 4 to fix the dovetail plate 1 and the steel backing 2 together. Rivet 4 passes steel backing shoulder hole 23 from steel backing 2 installation dovetail plate 1's dovetail plate shoulder hole 11 earlier, and through the riveting, rivet 4 is fixed on steel backing 2, fixes each friction disc 5 on steel backing 2 through spring buckle 3 again. And finally, matching the dovetail plate 1 with the rivet 4, and tightly combining the dovetail plate 1 and the steel backing 2 together through riveting again, thereby completing the assembly of the brake pad.
In this embodiment, one side of the friction plate mounting through hole 21 on the steel backing 2 has a backing plate positioning hole 211, and the other side has a spring snap mounting counterbore 212. The friction plate 5 is formed by sintering a back plate 51 and a friction body 52 together, the back plate 51 is formed by an integrated machine, and is provided with a positioning boss 511 and an annular dovetail groove 514, and the annular dovetail groove 514 and the positioning boss 511 are concentrically arranged. When the friction plate 5 is fixed on the steel back 2, the positioning boss 511 of the back plate 51 is precisely matched with the back plate positioning hole 211 on the steel back 2, so that the friction plate 5 is convenient to assemble and position, and the shearing force to the friction plate 5, which is generated by the braking friction force, can be borne; the positioning boss 511 is provided with a connecting boss 513, the ring direction of the connecting boss 513 is provided with a clamping groove 512, the spring buckle 3 is installed in the spring buckle installation counter bore 212, and the clamping groove 512 is clamped in the spring buckle 3. The annular dovetail groove 514 on the back plate 51 is used for integrally pressing and molding the friction plate 5, and powder is filled in the annular dovetail groove 514 in the pressing process, so that the bonding force between the friction body 52 and the back plate 51 is improved. The spring clip 3 is arranged in the spring clip mounting counter bore 212, and the riveting fastening between the dovetail plate 1 and the steel back 2 is not influenced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A dovetail type brake pad is characterized by comprising a dovetail plate (1), a steel back (2), a spring buckle (3) and a friction plate (5), the friction plate (5) comprises a back plate (51) and a friction body (52), the dovetail plate (1) and the friction plate (5) are arranged on two sides of the steel back (2), a plurality of friction plate mounting through holes (21) are arranged on the steel back (2), the friction plate mounting through holes (21) comprise back plate positioning holes (211) and spring buckle mounting counter bores (212) which are arranged on two sides of the steel back (2), one side of the back plate (51) is provided with a positioning boss (511) matched with the back plate positioning hole (211), a connecting boss (513) with a clamping groove (512) is arranged on the positioning boss (511), the spring buckle (3) is installed in the spring buckle installation counter bore (212) and is clamped with the clamping groove (512).
2. Dovetail brake pad according to claim 1, characterized in that the friction plates (5) are of prismatic structure, the side faces of adjacent friction plates (5) abutting each other to lock the friction plates (5) to each other.
3. Dovetail brake lining according to claim 2, characterized in that the friction linings (5) comprise hexagonal and pentagonal prism friction linings, which are arranged on both sides of the symmetry plane (22) of the steel backing (2), and the pentagonal prism friction linings on both sides of the symmetry plane (22) abut along the symmetry plane (22).
4. Dovetail brake pad according to claim 1, characterized in that the friction body (52) is provided with a friction body hole (521) in the middle, the friction body hole (521) penetrating to the back plate (51).
5. Dovetail brake lining according to any of claims 1 to 4, characterized in that the other side of the back plate (51) is provided with a snap groove in which one side of the friction body (52) is embedded.
6. The dovetail-type brake pad according to claim 5, wherein said snap-in groove is an annular dovetail groove (514), said annular dovetail groove (514) being concentrically arranged with said positioning boss (511).
7. The dovetail type brake pad according to any one of claims 1-4, wherein a dovetail plate stepped hole (11) is further formed in the dovetail plate (1), a steel back stepped hole (23) is formed in the steel back (2), and the dovetail plate (1) and the steel back (2) are connected through a rivet (4) riveted in the dovetail plate stepped hole (11) and the steel back stepped hole (23).
8. Dovetail brake pad according to any of claims 1-4, characterized in that said clamping groove (512) is an annular groove circumferential to said connection boss (513).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210403114.5A CN114810881A (en) | 2022-04-18 | 2022-04-18 | Dovetail type brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210403114.5A CN114810881A (en) | 2022-04-18 | 2022-04-18 | Dovetail type brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114810881A true CN114810881A (en) | 2022-07-29 |
Family
ID=82536988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210403114.5A Pending CN114810881A (en) | 2022-04-18 | 2022-04-18 | Dovetail type brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114810881A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202301665U (en) * | 2011-11-01 | 2012-07-04 | 常州南车铁马科技实业有限公司 | Brake sheet for rail traffic |
| CN205136435U (en) * | 2015-11-18 | 2016-04-06 | 长春市摩擦材料有限公司 | A brake strip for high speed train |
| CN206234293U (en) * | 2016-10-27 | 2017-06-09 | 博深工具股份有限公司 | The friction plate of raised structures powder metallurgy brake pad |
| CN206785901U (en) * | 2017-06-09 | 2017-12-22 | 山东百德瑞轨道交通科技有限公司 | A kind of high ferro brake block mezzanine |
| CN210830261U (en) * | 2019-10-22 | 2020-06-23 | 瑞安市洪江车业有限公司 | Automobile brake pad with replaceable friction base material |
| CN211574114U (en) * | 2020-01-07 | 2020-09-25 | 湖南城际科技有限公司 | Powder metallurgy brake pad for train |
| CN211874997U (en) * | 2020-02-10 | 2020-11-06 | 北京浦然轨道交通科技股份有限公司 | Friction body assembly and brake pad |
| CN211975717U (en) * | 2020-01-07 | 2020-11-20 | 湖南城际科技有限公司 | Powder metallurgy brake pad for preventing friction block from falling off for train |
-
2022
- 2022-04-18 CN CN202210403114.5A patent/CN114810881A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202301665U (en) * | 2011-11-01 | 2012-07-04 | 常州南车铁马科技实业有限公司 | Brake sheet for rail traffic |
| CN205136435U (en) * | 2015-11-18 | 2016-04-06 | 长春市摩擦材料有限公司 | A brake strip for high speed train |
| CN206234293U (en) * | 2016-10-27 | 2017-06-09 | 博深工具股份有限公司 | The friction plate of raised structures powder metallurgy brake pad |
| CN206785901U (en) * | 2017-06-09 | 2017-12-22 | 山东百德瑞轨道交通科技有限公司 | A kind of high ferro brake block mezzanine |
| CN210830261U (en) * | 2019-10-22 | 2020-06-23 | 瑞安市洪江车业有限公司 | Automobile brake pad with replaceable friction base material |
| CN211574114U (en) * | 2020-01-07 | 2020-09-25 | 湖南城际科技有限公司 | Powder metallurgy brake pad for train |
| CN211975717U (en) * | 2020-01-07 | 2020-11-20 | 湖南城际科技有限公司 | Powder metallurgy brake pad for preventing friction block from falling off for train |
| CN211874997U (en) * | 2020-02-10 | 2020-11-06 | 北京浦然轨道交通科技股份有限公司 | Friction body assembly and brake pad |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220729 |