CN211874986U - Floating carbon pottery brake lining and motor car brake assembly - Google Patents
Floating carbon pottery brake lining and motor car brake assembly Download PDFInfo
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- CN211874986U CN211874986U CN202020510790.9U CN202020510790U CN211874986U CN 211874986 U CN211874986 U CN 211874986U CN 202020510790 U CN202020510790 U CN 202020510790U CN 211874986 U CN211874986 U CN 211874986U
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Abstract
The utility model provides a floating carbon ceramic brake pad and a bullet train brake component, wherein the floating carbon ceramic brake pad comprises a snap spring, a steel back, a friction body component, a positioning pin and a pin shaft; the steel back is provided with a positioning hole and a pin shaft through hole, and the pin shaft through hole penetrates through the whole steel back; the positioning pin penetrates through the whole friction body assembly along the vertical direction and is fixed in the positioning hole; one end of the pin shaft is fixedly arranged in the friction body assembly, and the other end of the pin shaft penetrates through the steel back through a pin shaft through hole and is fixedly connected with the clamp spring; the floating carbon-ceramic brake pad provided by the utility model has simple structure, convenient installation, relatively low processing and forming cost and high temperature resistance; adopt the utility model provides a scheme for current motor car braking system is more reliable, promotes the operation security performance and the experience of EMUs and feels.
Description
Technical Field
The utility model belongs to the technical field of the motor car brake lining, concretely relates to floating carbon pottery brake lining and motor car braking component.
Background
With the rapid development of Chinese high-speed rail in China, the train operation speed is also increased continuously from the original maximum speed per hour of 350km/h to 420km/h or even higher. The promotion of train operation speed requires corresponding promotion to brake lining material and the structure among the EMUs braking system, and the requirement is also harsher, needs a high temperature resistant, coefficient of friction is stable, long service life, the reliable brake lining of overall structure urgently. Conventional brake pads in use today suffer from several problems:
firstly, the existing brake pad friction material is a synthetic or powder metallurgy material and cannot bear extremely high temperature in the braking process; generally, the synthetic material can resist the temperature of 600 ℃ at most and the powder metallurgy can resist the temperature of 900 ℃ at most;
secondly, the existing brake pad is in a left half type and a right half type, and an error exists in the machining process. Half brake pads in the same direction are easily installed together in the brake pad installation process, and the phenomenon of reverse installation of the brake pads occurs;
and thirdly, the friction body of the friction block of the conventional brake pad needs to be sintered with the small framework at the same time, and the copper-plated layer on the surface is easy to oxidize during high-temperature sintering, so that the friction body is scrapped, and the product reject ratio is correspondingly increased.
Based on the technical problems existing in the brake pad, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the weak point that exists in the above-mentioned technique, provide a floating carbon pottery brake lining and motor car braking component, aim at solving one of the unable high temperature resistant of current braking brake lining, mounting structure complicacy, with high costs problem.
The utility model provides a floating carbon ceramic brake pad, which comprises a snap spring, a steel backing, a friction body component, a positioning pin and a pin shaft; the steel back is provided with a positioning hole and a pin shaft through hole, and the pin shaft through hole penetrates through the whole steel back; the positioning pin penetrates through the whole friction body assembly along the vertical direction and is fixed in the positioning hole; one end of the pin shaft is fixedly arranged in the friction body assembly, and the other end of the pin shaft penetrates through the steel back through a pin shaft through hole and is fixedly connected with the clamp spring.
Further, the friction body assembly comprises a gasket and a carbon ceramic friction block; the carbon-ceramic friction block is provided with a friction block pin hole; the gasket is provided with a pin shaft hole and a positioning pin hole; the positioning pin penetrates through the pin hole of the friction block and the positioning pin hole and is fixed in the positioning hole; one end of the pin shaft is fixed in the pin shaft hole, and the other end of the pin shaft penetrates through the pin shaft through hole to be connected with the clamp spring in a clamping manner.
Furthermore, the carbon ceramic friction block is a triangular carbon ceramic friction block, three vertex angles of the triangular carbon ceramic friction block are all rounded, and the pin holes of the three friction blocks are respectively positioned at the circle centers of the three rounded angles; the gasket is a triangular gasket and is consistent with the plane shape of the triangular carbon ceramic friction block; the three top corners of the triangular gasket are rounded; the three positioning pin holes are respectively positioned at the circle centers of three round corners on the triangular gasket; the pin shaft hole is arranged in the center of the triangular gasket.
Furthermore, the carbon ceramic brake pad also comprises an elastic sheet with a central through hole, the steel back is provided with an elastic sheet groove, and the pin shaft through hole is arranged at the central position of the elastic sheet groove; the elastic sheet is arranged in the elastic sheet groove, and the central through hole of the elastic sheet is over against the pin shaft through hole; the other end of the pin shaft sequentially penetrates through the central through hole of the elastic sheet and the pin shaft through hole and is connected with the clamp spring in a clamping manner.
Furthermore, the depth of the elastic sheet groove is greater than the thickness of the elastic sheet; the upper end face and the lower end face of the elastic sheet are arc-shaped faces, one side of the elastic sheet facing the friction body assembly is an elastic sheet small end face, and the other side of the elastic sheet far away from the friction body assembly is an elastic sheet large end face.
Furthermore, a mounting plate is arranged on one surface of the steel back, which is far away from the friction body assembly, and the mounting plate and the steel back are integrally formed; and/or a fixed sleeve is arranged in the positioning hole, and the positioning pin penetrates through the fixed sleeve and is fixed in the positioning hole.
Further, the clamp spring is a circular clamp spring; the circular clamp springs comprise two symmetrical semicircular clamp springs; the two semicircular clamp springs are formed by bending a clamp spring wire, and clamp spring center holes are formed in the circle centers of the circular clamp springs; two jump ring support sections that form the jump ring centre bore are the V type opening.
Furthermore, a sink groove is formed in one surface of the steel back, which is far away from the friction body assembly; the pin shaft through hole penetrates through the steel back and is positioned in the center of the sinking groove; the clamp spring is arranged in the sinking groove, and the pin shaft penetrates through the pin shaft through hole and is clamped in the clamp spring central hole.
Further, the steel back is an arc-shaped back steel back; the arc-shaped back steel back is provided with a plurality of friction body assemblies.
Correspondingly, the utility model also provides a motor car brake assembly, including floating carbon ceramic brake pad, floating carbon ceramic brake pad be above-mentioned floating carbon ceramic brake pad; the floating carbon ceramic brake pad is arranged on the brake of the motor car through the mounting plate on the steel backing.
The floating carbon-ceramic brake pad provided by the utility model has simple structure, convenient installation, relatively low processing and forming cost and high temperature resistance; adopt the utility model provides a scheme for current motor car braking system is more reliable, promotes the operation security performance and the experience of EMUs and feels.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a perspective view (partial explosion) of a floating carbon ceramic brake pad of the present invention;
fig. 2 is a bottom view of the floating carbon ceramic brake pad of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a schematic view of the structure of the carbon-ceramic friction block of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
fig. 6 is a front view of the clamp spring structure of the present invention;
fig. 7 is a perspective view of the circlip structure of the present invention;
fig. 8 is a perspective view of the floating carbon ceramic brake pad of the present invention.
In the figure: 100. a clamp spring; 101. a clamp spring central hole; 102. a clamp spring supporting section; 103. a pin shaft through hole; 104. mounting a plate; 105. a V-shaped opening; 200. a steel backing; 201. a spring sheet groove; 202. positioning holes; 300. a spring plate; 301. the big end surface of the elastic sheet; 302. the small end face of the elastic sheet; 400. a friction body assembly; 401. fixing a sleeve; 402. a gasket; 4021. a pin shaft hole; 4022. a positioning pin hole; 403. a pin shaft; 405. a carbon-ceramic friction block; 4051. a friction block pin hole; 406. positioning pins; 4031. a pin shaft clamp spring groove; 5011. and (4) cambered surface.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 8, the utility model provides a floating carbon ceramic brake pad, which can be applied to the braking system of trains such as the existing high-speed railway motor cars; specifically, the floating carbon ceramic brake pad comprises a snap spring 100, a steel back 200, a friction body assembly 400, a positioning pin 406 and a pin shaft 403; wherein, the steel back 200 is provided with a positioning hole 202 and a pin shaft through hole 103, the positioning hole 202 is internally provided with a fixing sleeve 401, and the pin shaft through hole 103 penetrates through the whole steel back 200; further, the positioning pin 406 penetrates through the whole friction body assembly 400 in the vertical direction and penetrates through the fixing sleeve 401 to be fixed in the positioning hole 202, so that the whole friction body assembly 400 is more firmly fixed through connection; meanwhile, one end of the pin 403 is fixedly arranged in the friction body assembly 400, and the other end of the pin 403 penetrates through the steel back 200 through the pin through hole 103 and is fixedly connected with the clamp spring 100, so that the friction body assembly 400 can be more stably fixed on the steel back 200 by adopting the connection mode, the connection structure is firmer, and the floating carbon ceramic brake pad can more stably work in the brake assembly; further, the utility model provides a brake lining is carbon pottery brake lining, can effectively solve the unable high temperature resistance problem of current brake lining.
Preferably, in combination with the above, as shown in fig. 1 to 8, the friction body assembly 400 includes a washer 402 and a carbon ceramic friction block 405; the carbon ceramic friction block 405 is provided with a friction block pin hole 4051, the friction block pin hole 4051 is a counter bore, namely the positioning pin 406 penetrates through the friction block pin hole 4051 to clamp a pin head in the counter bore, so that the carbon ceramic friction block 405 can be fixed; a pin shaft hole 4021 and a positioning pin hole 4022 are arranged on the gasket 402; specifically, the positioning pin 406 passes through the friction block pin hole 4051 and the positioning pin hole 4022 to be fixed in the positioning hole 202, so that the gasket 402 and the carbon ceramic friction block 405 are fixed on the upper end face of the steel backing 200; meanwhile, one end of the pin 403 is fixed in the pin hole 4021, and the other end of the pin 403 passes through the pin through hole 103 to be clamped and connected with the snap spring 100, so that the gasket 402 in the friction body assembly 400 is fixedly connected with the lower end surface of the steel back 200, and the whole friction body assembly 400 is firmly fixed on the steel back 200.
Preferably, with the above scheme, as shown in fig. 1 to 8, the carbon ceramic friction block 405 is a triangular carbon ceramic friction block, three vertex angles of the triangular carbon ceramic friction block are all rounded, and three friction block pin holes 4051 are respectively located at the circle centers of the three rounded corners, so that the fixing stress of the whole triangular carbon ceramic friction block is more uniform, and a good braking effect can be achieved during high-speed operation of the motor train; meanwhile, the gasket 402 is a triangular gasket and is consistent with the planar shape of the triangular carbon ceramic friction block, namely the triangular area of the triangular gasket is consistent with the triangular area of the triangular carbon ceramic friction block; the three top corners of the triangular gasket are rounded; the three positioning pin holes 4022 are respectively positioned at the circle centers of three round corners on the triangular gasket, so that the triangular gasket can play a supporting role, the connection stress is more uniform, and the bullet train can play a good supporting role in high-speed running; furthermore, the pin shaft hole 4021 is arranged at the center of the triangular gasket, so that the connection is reliable and the stress is uniform.
Preferably, in combination with the above scheme, as shown in fig. 1 to 8, the carbon ceramic brake pad further includes a spring plate 300 with a central through hole, the steel back 200 is provided with a spring plate groove 201, and the pin shaft through hole 103 is disposed at the central position of the spring plate groove 201; specifically, the spring plate 300 is arranged in the spring plate groove 201, so that the movement can be avoided, and a good supporting effect can be achieved; the central through hole of the elastic sheet 300 is over against the pin shaft through hole 103; further, the other end of the pin 403 sequentially passes through the central through hole of the spring plate 300 and the pin through hole 103, and is in clamping connection with the snap spring 100, so as to be fixed on the steel back 200.
Preferably, in combination with the above solution, as shown in fig. 1 to 8, the depth of the spring plate groove 201 is greater than the thickness of the spring plate 300, so that the entire spring plate 300 can be trapped in the spring plate groove 201; specifically, the upper end surface and the lower end surface of the spring plate 300 are both arc-shaped surfaces, one side of the spring plate facing the friction body assembly 400 is a spring plate small end surface 302, and the other side of the spring plate far away from the friction body assembly 400 is a spring plate large end surface 301; namely, the upper end surface of the spring plate 300 is a spring plate small end surface 302, the lower end surface of the spring plate 300 is a spring plate large end surface 301, and the upper end surface and the lower end surface of the spring plate 300 are both arc surfaces, wherein the arc surface is a non-essential plane, the circle center of the arc surface is convex, and the circumference is downward inclined; specifically, the upper end surface of the resilient plate 300 is a convex side surface, and the small end surface 302 of the resilient plate 300 is disposed facing the friction body assembly 400, which is beneficial to supporting the force.
Preferably, in combination with the above solutions, as shown in fig. 1 to 8, a mounting plate 104 is disposed on a side of the steel back 200 facing away from the friction body assembly 400; specifically, the mounting plate 104 is integrally formed with the steel backing 200; further, the steel back 200 is an arc-shaped steel back, an arc-shaped face 5011 is arranged on the arc-shaped steel back, and the plurality of friction body assemblies 400 are installed on the arc-shaped face 5011 in a staggered mode; furthermore, a fixing sleeve 401 is arranged in the positioning hole 202, and the positioning pin 406 penetrates through the fixing sleeve 401 and is fixed in the positioning hole 202, so that the fixing effect is improved, the stress of the positioning pin 406 can be buffered, and the service life is prolonged.
Preferably, in combination with the above scheme, as shown in fig. 1 to 8, the clamp spring 100 is a circular clamp spring; the circular clamp springs comprise two semicircular clamp springs which are symmetrically arranged; two semicircular jump rings, as shown in fig. 6, 7 specifically are: the circular clamp spring comprises a left half clamp spring and a right half clamp spring, wherein the left half clamp spring and the right half clamp spring are of semicircular structures, and V-shaped openings 105 are formed in one sides of symmetrical centers of the left half clamp spring and the right half clamp spring respectively; further, as shown in fig. 6 and 7, two semicircular clamp springs are formed by bending a clamp spring wire, and a clamp spring center hole 101 is formed in the center of the circular clamp spring; specifically, the circlip wire is a steel wire; meanwhile, the two clamp spring supporting sections 102 of the steel wire section forming the clamp spring center hole 101 are V-shaped openings 105, so that the clamping force of the clamp spring center hole 101 can be improved, and the pin shaft 403 can penetrate through the pin shaft through hole 103 to be firmly clamped in the clamp spring center hole 101.
Preferably, in combination with the above solutions, as shown in fig. 1 to 8, a sunk groove is formed on a surface of the steel back 200 facing away from the friction body assembly 400, and the pin shaft through hole 103 penetrates through the steel back 200 and is located at a center position of the sunk groove, so that the snap spring 100 can be disposed in the sunk groove to avoid movement; the pin shaft 403 penetrates through the pin shaft through hole 103 and is clamped in the clamp spring central hole 101; further, the sink may be disposed directly on the steel backing 200 or disposed directly on the steel backing 200 through the mounting plate 104.
Preferably, in combination with the above solutions, as shown in fig. 1 to 8, the steel back 200 is an arc-shaped back steel back; a plurality of friction body assemblies 400 are arranged on the arc-shaped back steel backing 200; and whole floating carbon pottery brake lining processing is connected comparatively simply, and the error is less, and the structure is comparatively simple, and the brake lining installation is comparatively convenient.
Correspondingly, in combination with the above solution, as shown in fig. 1 to 8, the present invention further provides a bullet train braking assembly, which includes a floating carbon ceramic brake pad, where the floating carbon ceramic brake pad is the above floating carbon ceramic brake pad; the floating carbon ceramic brake pad is arranged on the brake of the motor car through the mounting plate 104 on the steel backing 200.
The floating carbon-ceramic brake pad provided by the utility model has simple structure, convenient installation, relatively low processing and forming cost and high temperature resistance; adopt the utility model provides a scheme for current motor car braking system is more reliable, promotes the operation security performance and the experience of EMUs and feels.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.
Claims (10)
1. A floating carbon ceramic brake pad is characterized by comprising a clamp spring (100), a steel back (200), a friction body assembly (400), a positioning pin (406) and a pin shaft (403);
the steel back (200) is provided with a positioning hole (202) and a pin shaft through hole (103), and the pin shaft through hole (103) penetrates through the whole steel back (200);
the positioning pin (406) penetrates through the whole friction body assembly (400) along the vertical direction and is fixed in the positioning hole (202);
one end of the pin shaft (403) is fixedly arranged in the friction body assembly (400), and the other end of the pin shaft (403) penetrates through the steel back (200) through the pin shaft through hole (103) and is fixedly connected with the clamp spring (100).
2. The floating carbon-ceramic brake pad as recited in claim 1, characterized in that the friction body assembly (400) comprises a washer (402) and a carbon-ceramic friction block (405);
a friction block pin hole (4051) is formed in the carbon ceramic friction block (405);
the gasket (402) is provided with a pin shaft hole (4021) and a positioning pin hole (4022);
the positioning pin (406) passes through the friction block pin hole (4051) and the positioning pin hole (4022) and is fixed in the positioning hole (202);
one end of the pin shaft (403) is fixed in the pin shaft hole (4021), and the other end of the pin shaft (403) penetrates through the pin shaft through hole (103) to be connected with the clamp spring (100) in a clamping manner.
3. The floating carbon-ceramic brake pad as claimed in claim 2, wherein the carbon-ceramic friction block (405) is a triangular carbon-ceramic friction block, three corners of the triangular carbon-ceramic friction block are rounded, and three friction block pin holes (4051) are respectively located at the centers of the three rounded corners;
the gasket (402) is a triangular gasket and is consistent with the plane appearance of the triangular carbon ceramic friction block; the three top corners of the triangular gasket are rounded; the three positioning pin holes (4022) are respectively positioned at the circle centers of three round corners on the triangular gasket; the pin shaft hole (4021) is formed in the center of the triangular gasket.
4. The floating carbon-ceramic brake pad as claimed in claim 1, further comprising a spring plate (300) with a central through hole, wherein the steel backing (200) is provided with a spring plate groove (201), and the pin through hole (103) is arranged at the central position of the spring plate groove (201); the elastic sheet (300) is arranged in the elastic sheet groove (201), and a central through hole of the elastic sheet (300) is over against the pin shaft through hole (103); the other end of the pin shaft (403) sequentially penetrates through the central through hole of the elastic sheet (300) and the pin shaft through hole (103) and is connected with the clamp spring (100) in a clamping manner.
5. A floating carbon ceramic brake pad according to claim 4, characterized in that the depth of the spring plate groove (201) is greater than the thickness of the spring plate (300); the upper end face and the lower end face of the elastic sheet (300) are both arc-shaped faces, one side of the elastic sheet facing the friction body assembly (400) is an elastic sheet small end face (302), and the other side of the elastic sheet far away from the friction body assembly (400) is an elastic sheet large end face (301).
6. The floating carbon-ceramic brake pad as claimed in claim 1, wherein a mounting plate (104) is provided on a side of the steel back (200) facing away from the friction body assembly (400), the mounting plate (104) being integrally formed with the steel back (200); and/or a fixing sleeve (401) is arranged in the positioning hole (202), and the positioning pin (406) penetrates through the fixing sleeve (401) and is fixed in the positioning hole (202).
7. A floating carbon ceramic brake pad according to any one of claims 1 to 5, characterized in that the circlip (100) is a circular circlip; the circular clamp springs comprise two semicircular clamp springs which are symmetrically arranged; the two semicircular clamp springs are formed by bending a clamp spring wire, and clamp spring center holes (101) are formed in the centers of the circles of the circular clamp springs; two clamp spring supporting sections (102) forming the clamp spring central hole (101) are V-shaped openings (105).
8. The floating carbon-ceramic brake pad as claimed in claim 7, characterized in that the steel backing (200) is provided with a countersunk groove on the side facing away from the friction body assembly (400); the pin shaft through hole (103) penetrates through the steel backing (200) and is positioned in the center of the sinking groove; the clamp spring (100) is arranged in the sinking groove, and the pin shaft (403) penetrates through the pin shaft through hole (103) and is clamped in the clamp spring central hole (101).
9. A floating carbon ceramic brake pad according to claim 7, characterized in that said steel backing (200) is an arc-shaped backing steel backing (200); and a plurality of friction body assemblies (400) are arranged on the arc-shaped back steel back (200).
10. A bullet train brake assembly comprising a floating carbon ceramic brake pad, wherein said floating carbon ceramic brake pad is a floating carbon ceramic brake pad according to any one of claims 1 to 9; the floating carbon ceramic brake pad is arranged on a brake of the motor car through the mounting plate (104) on the steel backing (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020510790.9U CN211874986U (en) | 2020-04-09 | 2020-04-09 | Floating carbon pottery brake lining and motor car brake assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020510790.9U CN211874986U (en) | 2020-04-09 | 2020-04-09 | Floating carbon pottery brake lining and motor car brake assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211874986U true CN211874986U (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020510790.9U Active CN211874986U (en) | 2020-04-09 | 2020-04-09 | Floating carbon pottery brake lining and motor car brake assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211874986U (en) |
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2020
- 2020-04-09 CN CN202020510790.9U patent/CN211874986U/en active Active
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