CN219655137U - Riveted powder metallurgy brake pad - Google Patents
Riveted powder metallurgy brake pad Download PDFInfo
- Publication number
- CN219655137U CN219655137U CN202321375777.7U CN202321375777U CN219655137U CN 219655137 U CN219655137 U CN 219655137U CN 202321375777 U CN202321375777 U CN 202321375777U CN 219655137 U CN219655137 U CN 219655137U
- Authority
- CN
- China
- Prior art keywords
- brake pad
- steel back
- gaskets
- powder metallurgy
- riveted
- 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.)
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 19
- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 24
- 238000005245 sintering Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 21
- 239000010959 steel Substances 0.000 description 21
- 238000009423 ventilation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a riveted powder metallurgy brake pad, which relates to the technical field of train braking and comprises a brake pad body, wherein the brake pad body comprises a left dovetail steel back and a right dovetail steel back, a plurality of mounting grooves are formed in the lower surfaces of the left dovetail steel back and the right dovetail steel back, a plurality of gaskets are arranged on the plane of one side of the left dovetail steel back and the right dovetail steel back, a plurality of first riveting holes are formed in the upper surfaces of the gaskets, the first riveting holes extend into the corresponding mounting grooves, a plurality of rivets are arranged in the mounting grooves, and a plurality of friction blocks are arranged above the gaskets. When the service time of the brake pad body is long, a large amount of heat is generated on the surface, the vent holes are arranged, so that the brake pad steel back is easier to dissipate heat, gaps exist between the friction blocks and the gaskets, abrasive dust can be discharged easily, and the brake pad is simple in structure and high in practicability.
Description
Technical Field
The utility model relates to the technical field of train braking, in particular to a riveted powder metallurgy brake pad.
Background
Brake pads, namely brake pads, are mainly used as basic brake elements in a train braking system, and the braking system is mainly divided into electric braking and air braking according to an operation control mode. In general, the two are combined to act, in emergency, only air braking is adopted, disc braking is usually adopted by a basic braking device for air braking, and the train is stopped by utilizing friction generated by a braking pad and a braking disc.
In the prior art, in order to guarantee friction effect when installing, the position of installing is more inseparable to all be direct fixed installation, inconvenient dismantlement, the installation is inseparable also can lead to self cooling rate slower, is in the high temperature state for a long time and can reduce life, and direct fixed be inconvenient for the chip removal, consequently needs a riveted powder metallurgy brake pad to satisfy people's demand.
Disclosure of Invention
The utility model aims to provide a riveted powder metallurgy brake pad, which aims to solve the problems that in the background art, in order to ensure the friction effect when a friction block used on the brake pad is installed, the installation positions are compact and are all directly fixedly installed, the disassembly is inconvenient, the self cooling rate is slow due to the compact installation, the service life is reduced when the friction block is in a high-temperature state for a long time, and the chip removal is inconvenient due to the direct fixation.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a riveting formula powder metallurgy brake block, includes the brake block body, the brake block body includes left forked tail steel backing and right forked tail steel backing, a plurality of mounting grooves have been seted up to the lower surface of left forked tail steel backing and right forked tail steel backing, the no forked tail side plane of left forked tail steel backing and right forked tail steel backing all is provided with a plurality of gaskets, a plurality of first riveting holes have all been seted up to the upper surface of gasket, a plurality of first riveting holes all extend to in the corresponding mounting groove, a plurality of all be provided with a plurality of rivets in the mounting groove, a plurality of the top of gasket all is provided with a plurality of friction blocks, a plurality of the upper surface of gasket all is fixed with corresponding friction blocks through a plurality of rivets in the corresponding mounting groove, a plurality of ventilation holes have all been seted up in the center department of gasket upper surface, a plurality of ventilation holes all extend to in the corresponding mounting groove;
when the brake block body long surface of service time produced a large amount of heat, the setting of ventilation hole can make brake block steel backing self dispel the heat more easily to a plurality of friction blocks and gasket distribute and have the gap, can discharge the abrasive dust relatively easily, simple structure, and the practicality is higher.
Preferably, the friction blocks are all sintered by a pressurized bell jar furnace.
Preferably, the left dovetail steel back and the right dovetail steel back are cast by ductile cast iron.
Preferably, a sintering tool of the friction block is arranged in the pressurized bell jar furnace, and the sintering tool of the friction block is made of graphite.
Preferably, the upper ends of a plurality of rivets are provided with fillets.
Preferably, the upper surfaces of the friction blocks are provided with second riveting holes, and the second riveting holes are matched with the first riveting holes on the corresponding gaskets.
Preferably, the gaskets are all made of spring steel plates, and the thickness of the gaskets is one point and five millimeters.
The beneficial effects of the utility model are as follows:
according to the utility model, through the arrangement of the left dovetail steel back, the right dovetail steel back, the mounting groove, the gasket, the first riveting hole, the rivet and the vent hole, when a great amount of heat is generated on the long service time surface of the brake pad body, the brake pad steel back can be easier to dissipate heat by the vent hole, gaps are distributed among the friction blocks and the gasket, abrasive dust can be discharged relatively easily, and the brake pad has a simple structure and high practicability.
According to the utility model, through the arrangement of the left dovetail steel back, the right dovetail steel back, the mounting groove, the gasket, the first riveting hole, the rivet and the vent hole, the rivet is arranged in the mounting groove, and the gasket and the friction block are fixed through the rivet, so that the friction block is convenient to detach and replace.
Drawings
FIG. 1 is a schematic perspective view of a riveted powder metallurgy brake pad according to the present utility model;
FIG. 2 is a schematic perspective view of a friction block of a riveted powder metallurgy brake pad according to the present utility model;
FIG. 3 is a schematic perspective view of a shim assembly of a riveted powder metallurgy brake pad according to the present utility model;
FIG. 4 is a schematic perspective view of a rivet for a riveted powder metallurgy brake pad according to the present utility model;
in the figure: 1. left dovetail steel backing; 2. right dovetail steel backing; 3. a gasket; 4. a first rivet hole; 5. a vent hole; 6. a friction block; 7. a second rivet hole; 8. a rivet; 9. and (5) rounding.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a riveted powder metallurgy brake pad, including the brake pad body, the brake pad body includes left forked tail steel backing 1 and right forked tail steel backing 2, a plurality of mounting grooves have been seted up to the lower surface of left forked tail steel backing 1 and right forked tail steel backing 2, a plurality of shims 3 have all been provided with in the no forked tail side plane of left forked tail steel backing 1 and right forked tail steel backing 2, a plurality of first rivet holes 4 have all been seted up to the upper surface of a plurality of shims 3, a plurality of rivet 8 have all been provided with in a plurality of mounting grooves, the top of a plurality of shims 3 all is provided with a plurality of friction blocks 6 through a plurality of rivet 8 and the friction block 6 that correspond in the mounting groove, a plurality of ventilation holes 5 have all been seted up in the center department of a plurality of shims 3 upper surface, when the brake pad body live a large amount of heats, the setting of ventilation holes 5 can make brake pad self friction block more easily, and a plurality of gaps can be arranged with the friction block, the practicality is high, the wear out more easily, and the wear out structure is easy.
The friction blocks 6 are sintered by a pressurized bell jar furnace, the sintering tool of the friction blocks is arranged in the pressurized bell jar furnace, the sintering tool of the friction blocks is made of graphite, a pressurized model is arranged in the bell jar furnace in advance, the model is made of graphite, the processing and molding pressure is only one tenth of that of cold pressing by adopting the method, the sintering temperature can be reduced, the sintering time is shortened, thereby preventing grains from growing up, fine grains, high density and mechanical property are obtained, the self strength of the friction blocks 6 can be improved, a limiting device is arranged in the model, the pressed friction blocks 6 are sintered in the model, the manufactured friction blocks 6 are all the same in height, and the subsequent processing can be reduced.
The gaskets 3 are all processed by spring steel plates, the thickness is one point and five millimeters, the elasticity of the gaskets 3 is good, and the strength is high and the gaskets are not easy to damage.
As shown in fig. 1 and 2, the upper ends of the rivets 8 are provided with fillets 9, so that the edges of the rivets 8 are ensured not to be broken due to edge effect in the high-speed friction braking process.
As shown in fig. 3, the brake pad body includes left forked tail steel backing 1 and right forked tail steel backing 2, a plurality of mounting grooves have been seted up to the lower surface of left forked tail steel backing 1 and right forked tail steel backing 2, a plurality of left forked tail steel backing 1 and right forked tail steel backing 2's upper surface all is provided with a plurality of gaskets 3, first riveting hole 4 has all been seted up to the upper surface of a plurality of gaskets 3, a plurality of first riveting hole 4 all extend to the mounting groove that corresponds, a plurality of rivet 8 all are provided with in the mounting groove, the top of a plurality of gaskets 3 all is provided with a plurality of friction blocks 6, a plurality of rivet 8 and the friction block 6 that corresponds in the mounting groove are all fixed through a plurality of rivet 8 that correspond in the mounting groove, a plurality of ventilation holes 5 all extend to the mounting groove that corresponds, rivet 8 set up in the mounting groove, it is fixed with gasket 3 and friction block 6 through rivet 8, can make friction block 6 self be convenient for dismantle the change.
The working principle of the utility model is as follows: before the device is used, a plurality of friction blocks 6 are sintered through a pressurized bell jar furnace, and a pressurized model is preset in the bell jar furnace, wherein the model is made of graphite, the processing and forming pressure is only one tenth of cold pressing pressure by adopting the method, the sintering temperature can be reduced, the sintering time can be shortened, thereby preventing crystal grains from growing up, obtaining fine crystal grains, high density and mechanical properties, and further improving the self strength of the friction blocks 6;
the limiting device is arranged in the model, the pressed friction blocks 6 are placed in the model for sintering, so that the manufactured friction blocks 6 are all the same in height, subsequent processing can be reduced, the friction blocks 6 are connected with the corresponding gaskets 3 through the rivets 8 when the friction block is used, at the moment, the plurality of groups of rivets 8 are all positioned in the corresponding mounting grooves, at the moment, the friction blocks 6 are all at the same height, and the braking effect is not influenced;
when the train brakes, the friction blocks 6 are rubbed, and fallen abrasive dust can be discharged through gaps in the gasket 3 and the vent holes 5 below the brake pad steel back, and the vent holes 5 can facilitate the brake pad steel back to perform air cooling and heat dissipation, so that the structure is simple, and the practicability is high;
it should be noted that, the plurality of gaskets 3 are made of spring steel plate materials, so that the elasticity of the gaskets is better, and the gaskets are high in strength and not easy to damage.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a riveting type powder metallurgy brake pad, includes brake pad body, its characterized in that: the brake pad body comprises a left dovetail steel back (1) and a right dovetail steel back (2), a plurality of mounting grooves are formed in the lower surfaces of the left dovetail steel back (1) and the right dovetail steel back (2), a plurality of gaskets (3) are arranged on the plane of a dovetail-free side of the left dovetail steel back (1) and the plane of a dovetail-free side of the right dovetail steel back (2), a plurality of first riveting holes (4) are formed in the upper surface of each gasket (3), the first riveting holes (4) extend into the corresponding mounting grooves, a plurality of rivets (8) are arranged in the mounting grooves, a plurality of friction blocks (6) are arranged above the gaskets (3), the upper surfaces of the gaskets (3) are fixed with the corresponding friction blocks (6) through the corresponding rivets (8) in the corresponding mounting grooves, vent holes (5) are formed in the center of the upper surface of each gasket (3), and the vent holes (5) extend into the corresponding mounting grooves.
2. A riveted powder metallurgy brake pad according to claim 1, wherein: the friction blocks (6) are sintered by a pressurized bell jar furnace.
3. A riveted powder metallurgy brake pad according to claim 1, wherein: the left dovetail steel back (1) and the right dovetail steel back (2) are both cast by ductile cast iron.
4. A riveted powder metallurgy brake pad according to claim 2, wherein: the sintering tool for the friction block is arranged in the pressurized bell jar furnace and is made of graphite.
5. A riveted powder metallurgy brake pad according to claim 1, wherein: the upper ends of a plurality of rivets (8) are respectively provided with a round angle (9).
6. A riveted powder metallurgy brake pad according to claim 1, wherein: the upper surfaces of the friction blocks (6) are respectively provided with a second riveting hole (7), and the second riveting holes (7) are matched with the first riveting holes (4) on the corresponding gaskets (3).
7. A riveted powder metallurgy brake pad according to claim 1, wherein: the gaskets (3) are all processed by adopting spring steel plates, and the thickness is one point and five millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321375777.7U CN219655137U (en) | 2023-06-01 | 2023-06-01 | Riveted powder metallurgy brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321375777.7U CN219655137U (en) | 2023-06-01 | 2023-06-01 | Riveted powder metallurgy brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655137U true CN219655137U (en) | 2023-09-08 |
Family
ID=87860993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321375777.7U Active CN219655137U (en) | 2023-06-01 | 2023-06-01 | Riveted powder metallurgy brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655137U (en) |
-
2023
- 2023-06-01 CN CN202321375777.7U patent/CN219655137U/en active Active
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