CN215805914U - Curved surface brake pad - Google Patents
Curved surface brake pad Download PDFInfo
- Publication number
- CN215805914U CN215805914U CN202022161405.7U CN202022161405U CN215805914U CN 215805914 U CN215805914 U CN 215805914U CN 202022161405 U CN202022161405 U CN 202022161405U CN 215805914 U CN215805914 U CN 215805914U
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- Prior art keywords
- friction
- brake pad
- spherical
- adjuster
- cambered
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- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Abstract
The utility model discloses a curved brake pad, which comprises a steel back and at least one group of friction blocks, wherein each group of friction blocks is arranged on the steel back through a group of mounting assemblies, and the friction surfaces of the friction blocks are curved surfaces. The friction surface of the friction block is designed into a curved surface from a straight surface, the area of the curved surface is larger than that of the straight surface under the same width or length, and correspondingly, only a brake disc in contact with the friction surface is designed into a curved surface matched with the friction surface, so that the contact area between friction pairs (namely the contact area between the friction surface and a brake pad) is increased, the stress condition between the friction pairs is improved, and the train braking efficiency is effectively improved.
Description
Technical Field
The utility model relates to the technical field of train braking, in particular to a curved surface brake pad.
Background
The mechanical brake is one of key parts of the high-speed rail motor train unit, the brake friction pair bears huge braking torque, thermal load, vibration impact and other loads in the braking process, and the performance of the mechanical brake is directly related to the braking efficiency, the braking reliability and the driving safety of the motor train unit. At present, the motor train unit is mostly applied to disc brakes which can be divided into a shaft-mounted type and a wheel-mounted type according to the installation position of the brakes and mainly comprise brake discs, brake pads, actuating cylinders and the like. Generally, the friction surfaces of the brake disc and the brake pad are both flat surfaces, and form a pair of flat friction pairs, and the mutual friction between the brake disc and the brake pad during the braking process converts the advancing kinetic energy of the train into heat energy, wherein one part of the heat energy is dissipated in the air, and the other part of the heat energy forms the heat load of the brake disc and the brake pad.
With the continuous improvement of the running speed of a motor train unit, a train generates larger heat load during braking, the traditional cast steel brake disc and powder metallurgy brake pad combination cannot adapt to a long-time high-temperature braking environment well, and hot spots and thermal fatigue cracks are easily formed on the disc surface; in addition, although the traditional plane friction pair is simple to manufacture, the contact surface between the friction pair is limited to a certain extent, and meanwhile, the contact stress of the plane friction pair is not uniform due to flatness errors existing in machining.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a curved surface brake pad which can improve the contact area between friction pairs and improve the stress condition between the friction pairs, thereby effectively improving the train braking efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a curved surface brake lining, includes steel backing and at least a set of clutch blocks, and every group clutch blocks is installed on the steel backing through a set of installation component, the friction surface of clutch blocks is the curved surface.
As a further improvement of the above technical solution, the friction surface is a concave curved surface or a convex curved surface.
As a further improvement of the technical scheme, the friction block is a fan-shaped block.
As a further improvement of the technical scheme, the steel back is arc-shaped, and the friction blocks are sequentially distributed on the steel back along the circumferential direction.
As a further improvement of the above technical solution, the mounting assembly includes an adjuster and a susceptor, each friction block of a set of friction blocks corresponds to one susceptor, each set of friction blocks is fixed on the front surface of the susceptor, each susceptor is mounted on the front surface of the adjuster, and the adjuster is mounted on the front surface of the steel back.
As a further improvement of the above technical solution, the back of the adjuster is provided with a first spherical protrusion, the front of the steel back is provided with a first spherical groove, the first spherical protrusion and the first spherical groove are matched with each other, the back of the susceptor is provided with a second spherical protrusion, the front of the adjuster is provided with a second spherical groove, and the second spherical protrusion and the second spherical groove are matched with each other.
As a further improvement of the above technical scheme, be equipped with the connecting rod on the second sphere lug, be equipped with the annular on the connecting rod on the circumferential surface, the back of steel backing is equipped with the connection counter bore, the connecting rod passes second sphere recess and is located the connection counter bore, be equipped with the jump ring in the annular, the jump ring supports and leans on the step of connecting the counter bore in order to prevent the connecting rod and connect the counter bore separation.
As a further improvement of the above technical solution, a disc spring for supporting and damping is disposed between the first spherical protrusion and the first spherical groove.
As a further improvement of the technical scheme, the back of the adjuster is provided with a positioning pin, the steel back is provided with a positioning pin hole, and the positioning pin is positioned in the positioning pin hole.
Compared with the prior art, the utility model has the advantages that:
according to the curved-surface brake pad, the friction surface of the friction block is designed to be a curved surface from a straight surface, the area of the curved surface is larger than that of the straight surface under the same width or length, and correspondingly, only the brake disc in contact with the friction surface is designed to be a curved surface matched with the friction surface, so that the contact area between friction pairs (namely the contact area between the friction surface and the brake pad) is increased, the stress condition between the friction pairs is improved, and the train braking efficiency is effectively improved.
Drawings
Fig. 1 is a schematic structural view (front side) of the present invention.
Fig. 2 is a schematic view (back) of the structure of the present invention.
Fig. 3 is a schematic view (an angle sectional view) of a connection structure between the susceptor, the adjuster, and the steel back in the present invention.
Fig. 4 is a schematic view (another angle cross-sectional view) of the connection structure between the susceptor, the adjuster, and the steel back in the present invention.
FIG. 5 is a schematic view of the connection structure between the susceptor, the adjuster and the friction block of the present invention.
Fig. 6 is a schematic structural view of the steel back in the present invention.
Fig. 7 is a schematic view of the regulator according to the present invention.
Fig. 8 is a schematic view of the structure of the susceptor of the present invention.
The reference numerals in the figures denote:
1. a steel backing; 101. a bump insertion hole; 11. a first spherical recess; 12. connecting the counter bores; 13. a positioning pin hole; 2. a friction block; 21. a friction surface; 3. an adjuster; 31. a first spherical bump; 311. a bump positioning pin; 32. a second spherical recess; 4. carrying out susceptor; 41. a second spherical bump; 42. a connecting rod; 421. a ring groove; 422. an end limiting plate; 5. a clamp spring; 6. a disc spring; 7. and a positioning pin.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples of the specification.
As shown in fig. 1 to 3, the curved brake pad of the present embodiment includes a steel backing 1 and at least one set of friction blocks 2, each set of friction blocks 2 is mounted on the steel backing 1 through a set of mounting assemblies, and a friction surface 21 of each friction block 2 is a curved surface.
In operation, the friction surface 21 of the brake pad contacts the brake disc to apply the brake. The friction surface is designed to be a curved surface from a straight surface, and the area of the curved surface is larger than that of the straight surface under the same width or length, so that a brake disc in contact with the friction surface 21 is correspondingly designed to be a curved surface matched with the friction surface, the contact area between friction pairs (namely the contact area between the friction surface and a brake pad) is increased, the stress condition between the friction pairs is improved, and the train braking efficiency is effectively improved.
In this embodiment, the friction block 2 is made of carbon ceramic material. The friction surface 21 is a concave curved surface. It should be noted that in other embodiments, the friction surface 21 may be a convex curved surface.
In this embodiment, the mounting assembly includes an adjuster 3 and a susceptor 4, one susceptor 4 for each friction block 2 of a set of friction blocks 2. Taking two groups of friction blocks 2 as an example, each group comprises two friction blocks 2, two corresponding adjusters 3 are arranged, 4 setbacks 4 are the same as the friction blocks 2 in number, each group of friction blocks 2 is fixed on the front surface of the setback 4, each setback 4 is arranged on the front surface of the adjuster 3, and the adjuster 3 is arranged on the front surface of the steel back 1. The shape of the susceptor 4 is consistent with that of the friction block 2, and the susceptor and the friction block are welded (sintering or other fixing methods can also be adopted).
As shown in fig. 3 to 8, specifically, the back surface of the adjuster 3 is provided with a first spherical protrusion 31, the front surface of the steel back 1 is provided with a first spherical groove 11, and the first spherical protrusion 31 and the first spherical groove 11 are matched with each other. The back of each susceptor 4 is provided with two second spherical protrusions 41, the front of the adjuster 3 is provided with four second spherical grooves 32, and each second spherical protrusion 41 of the two susceptors 4 is matched with each second spherical groove 32 on the adjuster 3. Wherein, be equipped with connecting rod 42 on this second sphere lug 41, be equipped with annular 421 on the last circumferential surface of connecting rod 42, the back of steel backing 1 is equipped with connects the counter bore 12 (connect the counter bore 12 and extend to the front from the back of steel backing 1), and connecting rod 42 passes second sphere recess 32 and is located connects the counter bore 12, is equipped with jump ring 5 in the annular 421, and jump ring 5 supports and leans on the step of connecting counter bore 12 in order to prevent connecting rod 42 and the separation of connecting counter bore 12.
During installation, the two supports 4 are firstly installed on the adjuster 3, then the adjuster 3 is installed on the steel back 1, the connecting rod 42 of the supports 4 penetrates through the adjuster 3 to be inserted into the connecting counter bore 12 of the steel back 1, the snap spring 5 is sleeved in the ring groove 421, one end, facing outwards, of the ring groove 421 is the end limiting plate 422, one side of the snap spring 5 is blocked on the step surface of the connecting counter bore 12, and the other side of the snap spring abuts against the end limiting plate 422, so that the connecting rod 42 can be prevented from being separated from the connecting counter bore 12, and the supports 4, the adjuster 3 and the steel back 1 are connected into a whole by clamping the adjuster 3 between the supports 4 and the steel back 1 through the snap spring 5, the ring groove 421 and the connecting rod 42. The first spherical convex block 31 of the adjuster 3 is in matched contact with the first spherical groove 11 of the steel back 1 to form a ball-and-socket pair with three rotational degrees of freedom in three directions, so that the friction block 2 of the brake pad can be adaptive to the surface fitting of the brake friction pair.
In this embodiment, the disc spring 6 is disposed between the first spherical protrusion 31 and the first spherical recess 11, and mainly plays roles of supporting the adjuster 3 and reducing vibration noise of the floating structure. The back of the adjuster 3 is provided with a positioning pin 7, the steel back 1 is provided with a positioning pin hole 13, the positioning pin 7 is positioned in the positioning pin hole 13, and the positioning pin 7 and the positioning pin hole 13 are arranged to facilitate the installation and positioning of the adjuster 3. The bottom of the first spherical surface bump 31 is further provided with a bump positioning pin 311, and a bump insertion hole 101 matched with the bump positioning pin 311 is correspondingly arranged in the first spherical surface groove 11 on the steel plate 1, so that the function of positioning is also achieved.
In the present embodiment, the friction block 2 is a sector block. The steel backing 1 is arc-shaped, and each group of friction blocks 2 are sequentially distributed on the steel backing 1 along the circumferential direction.
It should be noted that, in the present embodiment, four friction blocks 2 are taken as an example, and in other embodiments, the number of the friction blocks 2 may also be less than four or more than four. Also for the convenience of installation, two friction blocks 2 are provided on one adjuster 3, and in other embodiments, one friction block 2 may correspond to one adjuster 3, or more than three friction blocks 2 may be mounted on one adjuster 3.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. The utility model provides a curved surface brake lining which characterized in that: the steel back friction block comprises a steel back (1) and at least one group of friction blocks (2), wherein each group of friction blocks (2) are installed on the steel back (1) through a group of installation assemblies, and the friction surfaces (21) of the friction blocks (2) are curved surfaces.
2. The cambered brake pad of claim 1, wherein: the friction surface (21) is an inwards concave curved surface or an outwards convex curved surface.
3. The cambered brake pad of claim 1, wherein: the friction block (2) is a fan-shaped block.
4. The cambered brake pad of claim 3, wherein: the steel backing (1) is arc-shaped, and the friction blocks (2) are sequentially distributed on the steel backing (1) along the circumferential direction.
5. The cambered brake pad of any one of claims 1 to 4, wherein: the mounting assembly comprises an adjuster (3) and a susceptor (4), each friction block (2) of one group of friction blocks (2) corresponds to one susceptor (4), each group of friction blocks (2) is fixed on the front face of the susceptor (4), each susceptor (4) is mounted on the front face of the adjuster (3), and the adjuster (3) is mounted on the front face of the steel back (1).
6. The cambered brake pad of claim 5, wherein: the back of adjuster (3) is equipped with first spherical lug (31), the front of steel backing (1) is equipped with first spherical recess (11), first spherical lug (31) mutually supports with first spherical recess (11), the back of susceptor (4) is equipped with second spherical lug (41), the front of adjuster (3) is equipped with second spherical recess (32), second spherical lug (41) mutually supports with second spherical recess (32).
7. The cambered brake pad of claim 6, wherein: be equipped with connecting rod (42) on second sphere lug (41), be equipped with annular (421) on connecting rod (42) the circumferential surface, the back of steel backing (1) is equipped with connects counter bore (12), connecting rod (42) pass second sphere recess (32) and are located and connect counter bore (12), be equipped with jump ring (5) in annular (421), jump ring (5) support and lean on the step of connecting counter bore (12) in order to prevent connecting rod (42) and be connected counter bore (12) and separate.
8. The cambered brake pad of claim 6, wherein: and a disc spring (6) for supporting and damping is arranged between the first spherical convex block (31) and the first spherical groove (11).
9. The cambered brake pad of claim 6, wherein: the back of adjuster (3) is equipped with locating pin (7), be equipped with locating pin hole (13) on steel backing (1), locating pin (7) are located locating pin hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161405.7U CN215805914U (en) | 2020-09-27 | 2020-09-27 | Curved surface brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161405.7U CN215805914U (en) | 2020-09-27 | 2020-09-27 | Curved surface brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805914U true CN215805914U (en) | 2022-02-11 |
Family
ID=80124283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022161405.7U Active CN215805914U (en) | 2020-09-27 | 2020-09-27 | Curved surface brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805914U (en) |
-
2020
- 2020-09-27 CN CN202022161405.7U patent/CN215805914U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231115 Address after: Room 356, No. 999 Xufu Avenue, Gaoting Town, Daishan County, Zhoushan City, Zhejiang Province, 316200 (Daixi District) Patentee after: Mouhang (Daishan) Carbon Ceramics Co.,Ltd. Address before: 100097 No.308, 3rd floor, building 1, yard 6, Yuanda Road, Haidian District, Beijing Patentee before: Zhongjing Jitai (Beijing) Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240508 Address after: 264117, No. 60 Dayao Road, Dayao Street, Muping District, Yantai City, Shandong Province Patentee after: Mou Junxiang Aviation Carbon Ceramic Composite Materials (Yantai) Co.,Ltd. Country or region after: China Address before: Room 356, No. 999 Xufu Avenue, Gaoting Town, Daishan County, Zhoushan City, Zhejiang Province, 316200 (Daixi District) Patentee before: Mouhang (Daishan) Carbon Ceramics Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |