CN212479971U - Formula of sinking barb structure clutch blocks - Google Patents
Formula of sinking barb structure clutch blocks Download PDFInfo
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- CN212479971U CN212479971U CN202021493739.8U CN202021493739U CN212479971U CN 212479971 U CN212479971 U CN 212479971U CN 202021493739 U CN202021493739 U CN 202021493739U CN 212479971 U CN212479971 U CN 212479971U
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- back plate
- metal back
- friction
- friction body
- metal
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Abstract
The utility model discloses a sunk hook structure friction block, which comprises a metal back plate (1) and a friction body (2); the outline area of the metal back plate (1) is smaller than that of the friction body (2), and the metal back plate (1) is partially or completely embedded into the friction body (2) to be integrally pressed and molded; the metal back plate (1) is provided with a plurality of scarf holes (11), and a metal connecting layer is arranged between the metal back plate (1) and the friction body (2). The mechanical bonding strength of the metal back plate and the friction material is greatly increased while the original metallurgical bonding strength is kept, the friction block is effectively supported to complete the functions of speed regulation, braking and parking, and the running safety of a train is ensured.
Description
Technical Field
The utility model belongs to the technical field of mechanical structure, concretely relates to formula of sinking barb structure clutch blocks.
Background
With the development of high-speed railways, the powder metallurgy brake pad is widely applied to the field of high-speed motor train units as an indispensable key brake component of the high-speed motor train units.
The conventional motor train unit brake pad friction block is sintered with a friction material in a reducing atmosphere through a metal back plate, and is metallurgically combined with the friction material at a high temperature by means of a back plate copper plating layer to form a whole, so that the lateral shearing force of the friction block during braking is overcome. Because the friction material contains more non-metallic components such as ceramic, graphite and the like, metallurgical bonding cannot be generated between the friction material and metal, and the strength of the metallurgical bonding between the copper-plated layer of the metal backboard and the friction material is limited; furthermore, the presence of a large composition and density gradient at the joint results in a friction block with poor impact resistance. With the further increase of the braking speed and the load of the high-speed train, the friction material has a larger falling risk only by means of the metallurgical bonding of the metal back plate and the friction material.
Disclosure of Invention
An object of the utility model is to provide a formula of sinking barb structure clutch blocks when keeping original metallurgical bonding strength, has increased substantially metal backboard and friction material's mechanical bonding strength, effectively supports the clutch blocks and accomplishes speed governing, braking and the function of stopping, guarantees the driving safety of train.
The utility model provides a technical scheme as follows:
a sinking type friction block with a barb structure comprises a metal back plate 1 and a friction body 2; the outline area of the metal back plate 1 is smaller than that of the friction body 2, and the metal back plate 1 is partially or completely embedded into the friction body 2 to be integrally pressed and molded;
the metal back plate 1 is provided with a plurality of scarf holes 11, and a metal connecting layer is arranged between the metal back plate 1 and the friction body 2.
The edges of the plurality of scarf holes 11 are provided with a plurality of irregular barbs 12 along the axial direction.
The plurality of scarf holes 11 are formed by integrally stamping the metal back plate 1, and the stamped flash forms irregular barbs 12.
The surface of the metal back plate 1 is plated with copper.
And mounting holes are formed in the centers of the metal back plate 1 and the friction body 2.
By the foregoing the technical scheme provided by the utility model, the embodiment of the utility model provides a pair of formula of sinking barb structure clutch blocks when keeping original metallurgical bonding strength, has increased substantially metal backplate and friction material's mechanical bonding strength, effectively supports the clutch blocks and accomplishes speed governing, braking and the function of stopping, guarantees the driving safety of train.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic front view of a sinking barb structure friction block provided in an embodiment of the present invention;
fig. 2 is a schematic left-view a-a sectional structure view of a sinking barb structure friction block provided in the embodiment of the present invention;
fig. 3 is a schematic front view of a sinking barbed structural back plate according to an embodiment of the present invention;
fig. 4 is a schematic left-view B-B sectional structural view of a sunken barbed structural back plate provided in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are 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 some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 2, a sinking type friction block with a barbed structure comprises a metal back plate 1 and a friction body 2; the outline area of the metal back plate 1 is smaller than that of the friction body 2, and the metal back plate 1 is partially or completely embedded into the friction body 2 to be integrally pressed and formed, so that the metal back plate 1 and the friction body 2 are tightly meshed. The insert also sinks, so this example is called a sinking barbed friction block. The structure of fig. 2 shows the structure of the whole embedded structure, and the outline of the friction block is the friction body 2.
As shown in fig. 3 to 4, the metal back plate 1 is provided with a plurality of engagement holes 11, and the metal back plate 1 and the friction body 2 are engaged with each other through the engagement holes 11, so that the mechanical bonding strength between the metal back plate 1 and the friction body 2 is increased.
Meanwhile, the edge of the scarf joint hole 11 is also provided with a plurality of irregular barbs 12 along the axial direction; the metal back plate 1 is manufactured by stamping, so that the manufacturing cost of the metal back plate 1 is reduced. The plurality of scarf holes 11 are formed by integrally stamping the metal back plate 1, and the stamped flash forms irregular barbs 12. The irregular barbs 12 increase the bonding area of the metal back plate 1 and the friction body 2 and the anti-separation friction force.
In addition, a metal connecting layer is arranged between the metal back plate 1 and the friction body 2, so that the metallurgical bonding strength of the metal back plate 1 and the friction body 2 is increased. Specifically, the surface of the metal back plate 1 is plated with copper.
Of course, the metal back plate 1 and the friction body 2 are provided with mounting holes at the center. The mounting method is used for mounting the sinking type barb structure friction block.
Its advantages are as follows:
1. the metal back plate 1 and the friction body 2 are integrally pressed and formed, so that the metal back plate 1 and the friction body 2 are tightly meshed.
2. The outline of the metal back plate 1 is smaller than that of the friction body 2, and the outline of the friction block is the friction body 2, so that the stability of the friction block is improved;
3. the metal back plate 1 is punched and formed, so that the processing cost of the back plate is reduced;
4. the metal back plate 1 and the friction body 2 are embedded with each other, so that the mechanical bonding strength of the metal back plate 1 and the friction body 2 is increased;
5. the irregular barbs 12 in the punched holes of the metal back plate 1 increase the combined area of the metal back plate 1 and the friction body 2 and the anti-separation friction force;
6. a metal connecting layer is arranged between the metal back plate 1 and the friction body 2, so that the metallurgical bonding strength of the metal back plate 1 and the friction body 2 is improved.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A sinking type friction block with a barb structure is characterized by comprising a metal back plate (1) and a friction body (2); the outline area of the metal back plate (1) is smaller than that of the friction body (2), and the metal back plate (1) is partially or completely embedded into the friction body (2) to be integrally pressed and molded;
the metal back plate (1) is provided with a plurality of scarf holes (11), and a metal connecting layer is arranged between the metal back plate (1) and the friction body (2).
2. A sunk barbed structured friction block according to claim 1, wherein the edges of the plurality of engagement holes (11) are provided with barbs (12) in the axial direction.
3. A sunk barbed structured friction block according to claim 2, wherein the plurality of scarf holes (11) are integrally stamped from the metal backplate (1), and the stamped flash forms the barbs (12).
4. A sinking barbed structured friction block according to claim 1, 2 or 3, wherein the surface of the metal back plate (1) is plated with copper.
5. A sinking barbed structured friction block according to claim 1, 2 or 3, wherein the metal back plate (1) and the friction body (2) are provided with mounting holes at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021493739.8U CN212479971U (en) | 2020-07-24 | 2020-07-24 | Formula of sinking barb structure clutch blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021493739.8U CN212479971U (en) | 2020-07-24 | 2020-07-24 | Formula of sinking barb structure clutch blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479971U true CN212479971U (en) | 2021-02-05 |
Family
ID=74452580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021493739.8U Active CN212479971U (en) | 2020-07-24 | 2020-07-24 | Formula of sinking barb structure clutch blocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479971U (en) |
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2020
- 2020-07-24 CN CN202021493739.8U patent/CN212479971U/en active Active
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