CN111075870A - Dovetail structure brake pad for high-speed train brake - Google Patents
Dovetail structure brake pad for high-speed train brake Download PDFInfo
- Publication number
- CN111075870A CN111075870A CN201911380831.5A CN201911380831A CN111075870A CN 111075870 A CN111075870 A CN 111075870A CN 201911380831 A CN201911380831 A CN 201911380831A CN 111075870 A CN111075870 A CN 111075870A
- Authority
- CN
- China
- Prior art keywords
- brake pad
- brake
- friction block
- steel back
- hole
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
-
- 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
- F16D69/02—Compositions of linings; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
Abstract
The invention belongs to the technical field of train braking, and particularly relates to a dovetail-structure brake pad for high-speed train braking, which comprises: the brake pad comprises rivets, rivet sleeves, disc springs, brake pad steel backs, friction block steel backs, a transition layer, a pressed blank, a first through hole, a second through hole, deep grooves, dovetail grooves and reinforcing ribs; the technical scheme of the invention has the characteristics of convenient disassembly, assembly, use and maintenance, high connection strength and simple structure.
Description
Technical Field
The invention belongs to the technical field of train braking, and particularly relates to a dovetail-structure brake pad for high-speed train braking.
Background
With the rapid development of science and technology, in recent years, the highway network is increasingly criss-cross, and more attention is paid to how to safely brake from a high-speed driving state. As an indispensable friction brake of a train, the brake converts kinetic energy into heat energy and dissipates the heat energy into air. The friction braking of a high-speed train usually adopts a disc braking mode, and the purpose of energy conversion is achieved by utilizing the mutual friction between a brake disc and a brake pad. Therefore, the performance of both becomes an important aspect of security.
The current chinese patent application number is: 201720431847.4, discloses a monolithic dovetail plate type train brake pad, which comprises a plurality of friction bodies back connected on a back plate: the friction body comprises a friction material part and a friction back plate part, the friction material and the friction back plate are sintered into a whole in a pressurizing mode, wherein a rivet seat is sleeved outside the rivet, is arranged in a rivet hole reserved in the friction body and the back plate in advance and is in interference fit with the friction back plate of the friction body, and the rivet seat can bear certain shearing force in the interference fit in the using process, so that the service life of the rivet is ensured, and the rivet is prevented from being damaged by the shearing force to cause failure; and combine the gasket structure, make the gasket have the function of bearing the weight of the shearing force, have radiating function simultaneously, this utility model's train braking brake lining structure is at the braking in-process, long service life, and the reliability is high, and braking effect is good, but does not provide a high-speed train dovetail structure brake lining for brake.
Also, for example, the Chinese patent application number is: 201811178722.0 discloses a forked tail steel backing integral type powder metallurgy riveting brake lining, including integrative as cast forked tail steel backplate, be equipped with a plurality of brake lining friction bodies through flat head rivet fastening on the forked tail steel backplate, be equipped with circular gasket between brake lining friction body and the forked tail steel backplate, every brake lining friction body is including the friction body and the irregular hexagon connection piece that the pressfitting is in the same place. The integrated steel backing and dovetail structure is adopted, and the elastic gaskets are arranged between the steel backing and the friction body, so that certain gap adjustment amount can be ensured between the steel backing and the friction body, the safe use of the brake pad can be ensured, and the brake pad with the dovetail structure for braking a high-speed train is not provided.
Disclosure of Invention
Aiming at the problems of the defects in the prior art, the invention provides a dovetail structure brake pad for braking a high-speed train.
The technical scheme for solving the problems is as follows:
the dovetail structure brake pad includes: the brake pad comprises rivets, rivet sleeves, disc springs, brake pad steel backs, friction block steel backs, a transition layer, a pressed blank, a first through hole, a second through hole, deep grooves, dovetail grooves and reinforcing ribs; the brake pad comprises a pressed blank, a transition layer and a friction block steel back, wherein the pressed blank is matched with the brake pad steel back in sequence from top to bottom, the transition layer and the friction block steel back form a friction block through a sintering mode, a first through hole penetrates through the pressed blank and the transition layer from top to bottom in sequence, the friction block steel back and the brake pad steel back are respectively provided with a second through hole which is vertically penetrated through with the first through hole in a matched mode, the friction block and the brake pad steel back are connected through rivets, the rivets penetrate through rivet sleeves, rivet sleeves are arranged in the second through holes, one end of each rivet is exposed in the first through hole of the transition layer, the other end of each rivet is exposed in a deep groove of the brake pad steel back, two ends of each rivet sleeve extend into the first through holes of the transition layer and the deep groove of the brake pad steel back respectively, a disc spring is arranged between the second through holes of the friction block steel back and the brake pad.
Furthermore, the friction block is a trihedron, and the end of the trihedral body is of an arc transition structure.
Furthermore, the first through holes and the second through holes are distributed and arranged oppositely by taking the center of the end face of the pressed blank as an origin.
Further, the axial height of the green compact was 26 mm.
Furthermore, the depth of the dovetail groove is larger than the thickness of the brake pad steel back.
Further, 5 friction blocks are equal.
Further, the compact is a powder metallurgy friction material.
Compared with the prior art, the invention has the beneficial effects that:
1. the dovetail strength of the dovetail groove in the dovetail structure brake pad is effectively improved; the brake pad steel backing with the dovetail structure is adopted, so that the shearing force distribution is improved, and the failure caused by concentrated stress is avoided; the brake pad steel backing and the dovetail groove are integrally processed, so that the shearing stress area is increased, and the safety coefficient is greatly enhanced.
2. The split brake pad is formed by connecting the arranged rivet, the rivet sleeve and the disc spring with the brake pad steel back, and has the characteristics of convenience in disassembly, assembly, use and maintenance, high connection strength and simple structure.
Drawings
FIG. 1 is a schematic view of the dovetail structure brake pad structure;
FIG. 2 is a perspective cross-sectional view taken along AA' of FIG. 1;
FIG. 3 is a schematic view of the back side structure of the brake lining steel backing of FIG. 1;
description of reference numerals: 1-rivet, 2-rivet sleeve, 3-disc spring, 4-brake pad steel back, 5-friction block steel back, 6-first through hole, 7-pressed blank, 8-deep groove, 9-dovetail groove, 10-transition layer, 11-second through hole and 12-reinforcing rib.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, the dovetail-structured damper blade includes: the brake pad comprises a rivet 1, a rivet sleeve 2, a disc spring 3, a brake pad steel back 4, a friction block steel back 5, a transition layer 10, a pressed compact 7, a first through hole 6, a second through hole 11, a deep groove 8, a dovetail groove 9 and reinforcing ribs 12; the friction block is formed by a pressed compact 7, a transition layer 10 and a friction block steel back 5 which are matched with each other in sequence from top to bottom in a sintering mode, a first through hole 6 vertically penetrates through the pressed compact 7 and the transition layer 10 in sequence from top to bottom, the friction block steel back 5 and a brake pad steel back 4 are respectively provided with a second through hole 11 which is matched with the first through hole 6 and vertically penetrates through, the friction block and the brake pad steel back 4 are connected through a rivet 1, the rivet 1 penetrates through a rivet sleeve 2, the rivet sleeve 2 is arranged in the second through hole 11, one end of the rivet 1 is exposed in the first through hole 6 of the transition layer 10, the other end of the rivet 1 is exposed in a deep groove 8 of the brake pad steel back 4, two ends of the rivet sleeve 2 respectively extend into the first through hole 6 of the transition layer 10 and the deep groove 8 of the brake pad steel back 4, a disc-shaped spring 3 is positioned between the friction block steel back 5 and the second through hole 11 of the brake pad steel back 4, the brake, one side of the brake pad steel back 4 is provided with a dovetail groove 9, and two ends of the dovetail groove 9 are provided with reinforcing ribs 12.
Furthermore, the friction block is a trihedron, and the end of the trihedral body is of an arc transition structure.
Further, the first through holes 6 and the second through holes 11 are arranged to be opposed to each other with the center of the end surface of the green compact 7 as the origin.
Further, the axial height of the green compact 7 was 26 mm.
Further, the depth of the dovetail groove 9 is larger than the thickness of the brake pad steel back 4.
Further, 5 friction blocks are equal.
Further, the compact 7 is a powder metallurgy friction material.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and alterations that may occur to one skilled in the art without departing from the spirit of the invention are intended to be within the scope of the invention.
Claims (7)
1. The utility model provides a high-speed train is forked tail structure brake lining for brake which characterized in that includes: the brake pad comprises rivets, rivet sleeves, disc springs, brake pad steel backs, friction block steel backs, a transition layer, a pressed blank, a first through hole, a second through hole, deep grooves, dovetail grooves and reinforcing ribs; the brake pad comprises a pressed blank, a transition layer and a friction block steel back, wherein the pressed blank is matched with the brake pad steel back in sequence from top to bottom, the transition layer and the friction block steel back form a friction block through a sintering mode, a first through hole penetrates through the pressed blank and the transition layer from top to bottom in sequence, the friction block steel back and the brake pad steel back are respectively provided with a second through hole which is vertically penetrated through with the first through hole in a matched mode, the friction block and the brake pad steel back are connected through rivets, the rivets penetrate through rivet sleeves, rivet sleeves are arranged in the second through holes, one end of each rivet is exposed in the first through hole of the transition layer, the other end of each rivet is exposed in a deep groove of the brake pad steel back, two ends of each rivet sleeve extend into the first through holes of the transition layer and the deep groove of the brake pad steel back respectively, a disc spring is arranged between the second through holes of the friction block steel back and the brake pad.
2. The dovetail structure brake lining for braking of a high-speed train according to claim 1, wherein the friction block is a trihedron, and the end of the trihedral body is an arc-shaped transition structure.
3. The brake pad with the dovetail structure for braking a high-speed train according to claim 1, wherein the first through holes and the second through holes are arranged in a manner of being opposed to each other with an origin at an end surface center of the green compact.
4. The high-speed train brake dovetail structure brake lining according to claim 3, wherein the axial height of the green compact is 26 mm.
5. The high-speed train brake dovetail structure brake pad according to claim 1, wherein the depth of the dovetail groove is greater than the thickness of the brake pad steel backing.
6. The high-speed train brake dovetail structure brake lining according to claim 1, wherein the number of the friction blocks is equal to 5.
7. The dovetail structure brake lining for the brake of the high-speed train as claimed in claim 6, wherein the compact of the friction block is prepared from a powder metallurgy friction material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380831.5A CN111075870A (en) | 2019-12-27 | 2019-12-27 | Dovetail structure brake pad for high-speed train brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380831.5A CN111075870A (en) | 2019-12-27 | 2019-12-27 | Dovetail structure brake pad for high-speed train brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111075870A true CN111075870A (en) | 2020-04-28 |
Family
ID=70318870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911380831.5A Pending CN111075870A (en) | 2019-12-27 | 2019-12-27 | Dovetail structure brake pad for high-speed train brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111075870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071451A (en) * | 2021-03-22 | 2021-07-06 | 中车株洲电力机车有限公司 | Tread cleaning device and friction block thereof |
-
2019
- 2019-12-27 CN CN201911380831.5A patent/CN111075870A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071451A (en) * | 2021-03-22 | 2021-07-06 | 中车株洲电力机车有限公司 | Tread cleaning device and friction block thereof |
| CN113071451B (en) * | 2021-03-22 | 2023-08-08 | 中车株洲电力机车有限公司 | Tread cleaning device and friction block thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108317194B (en) | Shaft-mounted brake disc assembly for high-speed train | |
| CN205025982U (en) | Floating whole brake pad | |
| CN110617285B (en) | Composite material shaft-mounted brake disc for high-speed train | |
| CN111075870A (en) | Dovetail structure brake pad for high-speed train brake | |
| CN202790228U (en) | Braking pad of friction block floatable dovetailing steel back structure | |
| CN211737838U (en) | Dovetail structure brake pad for high-speed train brake | |
| CN203796812U (en) | Brake pad | |
| CN209925469U (en) | Carbon pottery axle dress brake disc suitable for high-speed EMUs | |
| KR20010082476A (en) | Separating brake disc | |
| CN111075865A (en) | Adjustable brake pad for train | |
| CN204004093U (en) | The universal brake pad of dovetail | |
| CN211737830U (en) | Adjustable brake pad for train | |
| CN209925468U (en) | Carbon pottery wheel dress brake disc and wheel suitable for high-speed EMUs | |
| CN204419934U (en) | A kind of bullet train brake pad assembly | |
| CN111075864A (en) | Outer wrapping type friction block for high-speed train brake | |
| CN209524022U (en) | Dovetail steel back integral type powder metallurgy rivets brake lining | |
| CN211737839U (en) | Brake pad for high-speed train | |
| CN214248094U (en) | Integral brake lining for high-speed train brake | |
| CN208900594U (en) | A kind of novel elastic structure brake lining | |
| CN111022536A (en) | Brake pad for high-speed train | |
| CN211737840U (en) | Improved brake pad for high-speed train | |
| CN220396329U (en) | Brake disc | |
| CN211874995U (en) | Fixed brake pad of low-speed rail transit train | |
| CN219452725U (en) | Brake disc and vehicle | |
| CN206694475U (en) | The carbon-based brake disc of big wheel tractor brake |
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 |