CN216666304U - Brake pad for high-speed rail - Google Patents
Brake pad for high-speed rail Download PDFInfo
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- CN216666304U CN216666304U CN202220006290.0U CN202220006290U CN216666304U CN 216666304 U CN216666304 U CN 216666304U CN 202220006290 U CN202220006290 U CN 202220006290U CN 216666304 U CN216666304 U CN 216666304U
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- steel plate
- layer steel
- brake lining
- heat exchange
- heat dissipation
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Abstract
The utility model discloses a brake pad for a high-speed rail, which comprises a metal framework, a brake pad and a brake pad, wherein the metal framework comprises an outer steel plate and an inner steel plate, opposite surfaces of the outer steel plate and the inner steel plate are fixedly connected through a connecting seat, a heat dissipation cavity is formed between the outer steel plate and the inner steel plate, the heat dissipation cavity comprises an air inlet area arranged at the outer edge of the heat dissipation cavity and a heat exchange area arranged inside the heat dissipation cavity, the interval of the air inlet area is larger than that of the heat exchange area, heat dissipation fins fixedly connected to the inner walls of the outer steel plate and the inner steel plate are arranged in the heat exchange area, and heat dissipation holes communicated with the heat exchange area are also formed in the outer steel plate; the brake lining body is fixedly connected to the outer surface of the inner steel plate, the brake lining body is riveted with the inner steel plate and the outer steel plate through rivets, and the inner side surface of the brake lining body and the outer side surface of the inner steel plate are provided with the wave patterns which are nested and matched with each other. The utility model can ensure that the temperature of the brake pad body is maintained at a lower level, and can stably brake the wheel for a long time.
Description
Technical Field
The utility model relates to the technical field of brake pads, in particular to a brake pad for a high-speed rail.
Background
With the rapid development of science and technology in China, the traffic transportation industry in China has a great deal of development in recent years, and high-speed rails have obvious advantages as novel rail vehicles. Because the high-speed rail has extremely high speed in the running process, the speed is often reduced step by step until the high-speed rail stops in the braking process, and the brake pads are required to work in cooperation with the wheels in the process so as to continuously apply friction force to the wheels. Therefore, the brake pad is required to have good high temperature resistance and wear resistance, and the temperature of the traditional brake pad is sharply increased in the long-time braking process of the wheel, so that the service life and the braking effect of the brake pad are influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a high-speed rail brake pad which can ensure that the temperature of a brake pad body is maintained at a lower level and can stably brake a wheel for a long time.
The technical scheme adopted by the utility model for realizing the purpose is as follows: a brake pad for a high-speed rail comprises a metal framework and a brake pad body, wherein the metal framework comprises an outer steel plate and an inner steel plate, connecting seats are fixedly connected to the opposite surfaces of the outer steel plate and the inner steel plate, the connecting seats of the outer steel plate and the inner steel plate are fixedly connected, a heat dissipation cavity is formed between the outer steel plate and the inner steel plate and comprises an air inlet area and a heat exchange area, the air inlet area is arranged at the outer edge of the heat dissipation cavity, the heat exchange area is arranged inside the heat dissipation cavity, the interval between the air inlet area and the heat exchange area is larger than the interval between the heat exchange areas, radiating fins fixedly connected to the inner walls of the outer steel plate and the inner steel plate are arranged in the heat exchange areas, and radiating holes communicated with the heat exchange areas are further formed in the outer steel plate; the brake lining body is fixedly connected to the outer surface of the inner-layer steel plate, the brake lining body is riveted to the inner-layer steel plate and the outer-layer steel plate through rivets, the rivets penetrate through the outer-layer steel plate, the connecting seats, the inner-layer steel plate and the brake lining body perpendicularly to be arranged, and the inner side face of the brake lining body and the outer side face of the inner-layer steel plate are provided with mutually nested and matched wavy grains.
The outer steel plate, the inner steel plate and the connecting seat are cast into a unified whole.
The outer edge thickness of the outer layer steel plate and the inner layer steel plate is smaller than the inner side thickness, and the joint of the air inlet area and the heat exchange area is in cambered surface transition.
The connecting seats on the outer-layer steel plate and the inner-layer steel plate are provided with two groups, and the two groups of connecting seats are symmetrically arranged on the center lines of the outer-layer steel plate and the inner-layer steel plate.
The connecting seat is arranged in the heat exchange area, and the connecting part of the connecting seat and the heat exchange area is in cambered surface transition.
The included angle between the radiating fins and the connecting line of the two groups of connecting seats is 30-60 degrees.
The utility model has the beneficial effects that: the wavy lines are arranged between the brake pad body and the inner steel plate, the contact area between the inner steel plate and the brake pad body can be increased, the stability of the brake pad body mounted on the inner steel plate is further improved, meanwhile, the heat conduction efficiency is improved to transfer heat to the outer steel plate, and the heat dissipation plate in the inner steel plate is arranged at a small interval of the heat transfer area, so that the air speed of the air entering the heat transfer area from the air inlet area is further increased, the heat can be taken out under the action of the heat dissipation plate, the heat dissipation efficiency can be increased by arranging the heat dissipation holes in the outer steel plate, the temperature of the brake pad body is guaranteed to be maintained at a low level, and the stable braking of the wheel can be carried out for a long time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged detail view of the portion B of FIG. 2;
fig. 4 is a schematic top view of the inner steel plate.
In the figure: the brake lining comprises a brake lining body 1, an outer steel plate 2, an inner steel plate 3, a connecting seat 4, an air inlet area 5, a heat exchange area 6, heat radiating fins 7, heat radiating holes 8 and rivets 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a brake pad for a high-speed rail comprises a metal framework and a brake pad body 1, wherein the metal framework comprises an outer steel plate 2 and an inner steel plate 3, connecting seats 4 are fixedly connected to opposite surfaces of the outer steel plate 2 and the inner steel plate 3, the connecting seats 4 of the outer steel plate 2 and the inner steel plate 3 are fixedly connected, a heat dissipation cavity is formed between the outer steel plate 2 and the inner steel plate 3, the heat dissipation cavity comprises an air inlet area 5 arranged at the outer edge of the heat dissipation cavity and a heat exchange area 6 arranged inside the heat dissipation cavity, the distance between the air inlet area 5 is greater than that between the heat exchange areas 6, radiating fins 7 fixedly connected to the inner walls of the outer steel plate 2 and the inner steel plate 3 are arranged in the heat exchange area 6, and radiating holes 8 communicated with the heat exchange areas 6 are further formed in the outer steel plate 2; 1 rigid coupling of brake lining body is at the surface of inlayer steel sheet 3, and brake lining body 1 rivets through rivet 9 and inlayer steel sheet 3, outer steel sheet 2, and rivet 9 runs through outer steel sheet 2, connecting seat 4, inlayer steel sheet 3, brake lining body 1 perpendicularly and arranges, and the identical raised grain of nesting each other has all been seted up to 1 medial surface of brake lining body, 3 lateral surfaces of inlayer steel sheet.
According to the utility model, the outer layer steel plate 2, the inner layer steel plate 3 and the connecting seat 4 are cast into a unified whole, so that the connection rigidity of the outer layer steel plate 2, the inner layer steel plate 3 and the connecting seat 4 can be ensured, and the metal framework can be conveniently produced and processed.
The outer steel plate 2, the outer fringe thickness of inlayer steel plate 3 is less than inboard thickness, the part that the outer fringe thickness is little corresponds with air intake zone 5, the part that inside thickness is big corresponds with heat transfer district 6, guarantee that the 5 intervals in air intake zone are greater than the interval in heat transfer district 6, when the air along the in-process that air intake zone 5 flows to heat transfer district 6, can improve the wind speed in order to improve the radiating effect to inlayer steel plate 3, brake lining body 1, air intake zone 5 is excessive with heat transfer district 6 junction is the cambered surface, the cambered surface is excessive can effectively reduce the windage in the air flow in-process.
Connecting seats 4 on the outer steel plate 2 and the inner steel plate 3 are provided with two sets, and the central line symmetrical arrangement of the outer steel plate 2 and the inner steel plate 3 on the two sets of connecting seats 4 guarantees the overall stability of the metal framework, and the brake lining body 1 is conveniently fixed simultaneously.
The connecting seat 4 is arranged in the heat exchange area 6, and the connecting part of the connecting seat 4 and the heat exchange area 6 is in a cambered surface transition, so that the wind resistance during air flowing can be effectively reduced, and the air is ensured to enter the heat exchange area 6 at a high flow rate for heat exchange.
The included angle between the connecting lines of the radiating fins 7 and the two groups of connecting seats 4 is 30-60 degrees, the windward area of the radiating fins 7 is increased, and the radiating efficiency of high-speed air to the radiating fins 7 is improved.
The working principle of the utility model is as follows: when a wheel travelling at high speed is braked, the outer side surface of the brake pad body 1 is controlled to be tightly attached to the side wall of the wheel so as to brake the wheel, the temperature of the brake pad body 1 is rapidly increased due to friction work in the process, the raised grains arranged between the brake pad body 1 and the inner steel plate 3 can improve the contact area between the inner steel plate 3 and the brake pad body 1, further the stability of the brake pad body 1 mounted on the inner steel plate 3 is improved, the heat conduction efficiency is improved, further the heat is transferred to the outer steel plate 2 and the radiating fins 7 in the inner steel plate 3, the speed of high-speed iron is still maintained at a higher level in the early stage of braking, further the air flowing into the heat exchange area 6 from the air inlet area 5 is higher in speed, the distance between the heat exchange area 6 is smaller, the air flowing into the heat exchange area can further improve the flow speed, the heat can be taken out under the action of the radiating fins 7, the radiating holes 8 arranged on the outer steel plate 2 can also improve the radiating efficiency, ensure the brake pad body 1 to work stably.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a high-speed railway brake block which characterized in that: comprises a metal framework and a brake pad body (1), wherein the metal framework comprises an outer layer steel plate (2) and an inner layer steel plate (3), the opposite surfaces of the outer layer steel plate (2) and the inner layer steel plate (3) are fixedly connected with connecting seats (4), and the connecting seats (4) of the outer layer steel plate (2) and the inner layer steel plate (3) are fixedly connected, a heat dissipation cavity is formed between the outer layer steel plate (2) and the inner layer steel plate (3), the heat dissipation cavity comprises an air inlet area (5) arranged at the outer edge of the heat dissipation cavity and a heat exchange area (6) arranged in the heat dissipation cavity, the distance between the air inlet areas (5) is larger than that between the heat exchange areas (6), radiating fins (7) fixedly connected with the inner walls of the outer layer steel plate (2) and the inner layer steel plate (3) are arranged in the heat exchange areas (6), the outer layer steel plate (2) is also provided with heat dissipation holes (8) communicated with the heat exchange area (6); the brake lining comprises a brake lining body (1) and is characterized in that the brake lining body (1) is fixedly connected to the outer surface of an inner-layer steel plate (3), the brake lining body (1) is riveted with the inner-layer steel plate (3) and an outer-layer steel plate (2) through rivets (9), the rivets (9) vertically penetrate through the outer-layer steel plate (2), a connecting seat (4), the inner-layer steel plate (3) and the brake lining body (1) and are arranged, and wave patterns which are nested and matched with each other are formed in the inner side face of the brake lining body (1) and the outer side face of the inner-layer steel plate (3).
2. The brake lining for high-speed rail according to claim 1, wherein: the outer layer steel plate (2), the inner layer steel plate (3) and the connecting seat (4) are cast into a unified whole.
3. The brake lining for high-speed rail according to claim 1, wherein: the outer edge thickness of the outer layer steel plate (2) and the inner layer steel plate (3) is smaller than the inner side thickness, and the joint of the air inlet area (5) and the heat exchange area (6) is in cambered surface transition.
4. The brake lining for high-speed rail according to claim 1, wherein: the connecting seats (4) on the outer steel plate (2) and the inner steel plate (3) are provided with two groups, and the two groups of connecting seats (4) are symmetrically arranged on the central lines of the outer steel plate (2) and the inner steel plate (3).
5. The brake lining for high-speed rail according to claim 1, wherein: the connecting seat (4) is arranged in the heat exchange area (6), and the connecting part of the connecting seat (4) and the heat exchange area (6) is in arc transition.
6. The brake lining for high-speed rail according to claim 1, wherein: the included angle between the radiating fins (7) and the connecting line of the two groups of connecting seats (4) is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006290.0U CN216666304U (en) | 2022-01-04 | 2022-01-04 | Brake pad for high-speed rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006290.0U CN216666304U (en) | 2022-01-04 | 2022-01-04 | Brake pad for high-speed rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666304U true CN216666304U (en) | 2022-06-03 |
Family
ID=81760019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220006290.0U Active CN216666304U (en) | 2022-01-04 | 2022-01-04 | Brake pad for high-speed rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216666304U (en) |
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2022
- 2022-01-04 CN CN202220006290.0U patent/CN216666304U/en active Active
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