CN220687902U - Non-dovetail type powder metallurgy brake pad - Google Patents
Non-dovetail type powder metallurgy brake pad Download PDFInfo
- Publication number
- CN220687902U CN220687902U CN202321807146.8U CN202321807146U CN220687902U CN 220687902 U CN220687902 U CN 220687902U CN 202321807146 U CN202321807146 U CN 202321807146U CN 220687902 U CN220687902 U CN 220687902U
- Authority
- CN
- China
- Prior art keywords
- dovetail
- brake pad
- friction
- mounting
- powder metallurgy
- 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 22
- 239000010959 steel Substances 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000002783 friction material Substances 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- -1 polytetrafluoroethylene Polymers 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a non-dovetail type powder metallurgy brake pad, which relates to the technical field of train brake pads and comprises a non-dovetail type steel back plate and a plurality of friction components, wherein a plurality of clamping grooves are formed in the upper surface of the non-dovetail type steel back plate, a plurality of fixing grooves are formed in the lower surface of the non-dovetail type steel back plate, the friction components comprise a mounting pad, a plurality of brake pad friction blocks are mounted on the upper surface of the mounting pad, a corresponding group of brake pad friction blocks are arranged in a triangular shape, a fixing hole is formed in the center of the upper surface of the mounting pad, and mounting columns are clamped at the center below the inner walls of the plurality of clamping grooves through corresponding disc-shaped clamp springs. The brake pad friction block is assembled by matching the disc-shaped clamp spring with the mounting column and the brake pad friction block in the friction assembly, is arranged in the clamping groove on the non-dovetail steel backboard, and is rotatable.
Description
Technical Field
The utility model relates to the technical field of train brake pads, in particular to a non-dovetail type powder metallurgy brake pad.
Background
The friction material of the brake shoe or the brake pad is known by the powder metallurgy expert, after being produced by adopting the powder metallurgy technology, the friction material has obvious advantages in performance, and has great flexibility in product diversification. The powder metallurgy technology can change the components of the material in a large range, and can avoid the defects of loosening, shrinkage cavity, dendrite segregation of material structure, large crystal elongation and the like in the traditional manufacturing process, so that the mechanical property and the friction and wear property of the part can be improved;
the powder metallurgy brake pad is divided into an iron base and a copper base according to materials, the iron base powder metallurgy brake pad has excellent friction performance under high temperature and high load, has high mechanical strength, can be used in the range of 400-1000 ℃, but has quite large abrasion loss at low speed, and has higher heat stability than copper base, has the defect of affinity with pairs (such as cast iron or steel), is easy to generate adhesion and gluing, has larger fluctuation of friction coefficient, is easy to generate abnormal abrasion, generates noise and the like, and can be divided into a dovetail type and a non-dovetail type in variety.
In the prior art, after the service time of the brake pad is long, the condition of abrasion can be caused due to the influence of the environment and other factors, the brake pad needs to be replaced in time once the abrasion is caused, so that potential safety hazards are prevented, but the common brake pad is fixedly arranged and is inconvenient to replace, and therefore, the non-dovetail type powder metallurgy brake pad is required to meet the demands of people.
Disclosure of Invention
The utility model aims to provide a non-dovetail type powder metallurgy brake pad, which solves the problems that after the brake pad is used for a long time, the brake pad is worn due to the influence of environment and other factors, and once the brake pad is worn, the brake pad needs to be replaced in time, so that potential safety hazards are prevented, but the brake pad is fixedly arranged and is inconvenient to replace.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the non-dovetail type powder metallurgy brake pad comprises a non-dovetail type steel back plate and a plurality of friction components, wherein a plurality of clamping grooves are formed in the upper surface of the non-dovetail type steel back plate, a plurality of fixing grooves are formed in the lower surface of the non-dovetail type steel back plate, each friction component comprises a mounting pad, a plurality of brake pad friction blocks are mounted on the upper surface of each mounting pad, a corresponding group of brake pad friction blocks are arranged in a triangular mode, a fixing hole is formed in the center of the upper surface of each mounting pad, mounting columns are connected with the center of the lower portion of the inner wall of each clamping groove through corresponding disc-shaped clamping springs in a clamping mode, the lower ends of the mounting columns penetrate through the lower portions of the inner walls of the corresponding clamping grooves and extend into the corresponding fixing grooves, and the upper portions of the outer walls of the mounting columns are connected with the inner walls of the corresponding fixing holes in a rotating mode.
Preferably, a plurality of the friction assemblies are tightly connected with the non-dovetail steel backing plate and are seamless.
Preferably, the non-dovetail steel backboard is formed by combining a base layer and a corrosion-resistant layer, the corrosion-resistant layer is made of polytetrafluoroethylene material, the polytetrafluoroethylene material is a high molecular polymer prepared by polymerizing tetrafluoroethylene as a monomer, the material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, and meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance, and has extremely low friction coefficient, so that the non-dovetail steel backboard can be used as an ideal paint for easily cleaning the inner layer of a water pipe, the non-dovetail steel backboard 1 can be well prevented from being damaged, and the service life of the non-dovetail steel backboard 1 is prolonged.
Preferably, the friction components are identical in shape and size, the brake pad friction blocks are all formed by sintering metal friction materials, and the surfaces of the brake pad friction blocks are smooth.
Preferably, the upper surface of the non-dovetail steel backboard is provided with a plurality of chip removal holes, and chip removal Kong Cuola is distributed on the non-dovetail steel backboard.
Preferably, the non-dovetail steel backboard is of a plate structure with a mounting guide groove on a rear strap, and mounting holes are formed in two sides of the upper surface of the non-dovetail steel backboard.
The beneficial effects of the utility model are as follows:
according to the utility model, through the arrangement of the non-dovetail steel backboard, the friction assembly, the clamping groove, the fixing groove, the mounting pad, the brake pad friction block, the fixing hole, the dish-shaped clamp spring, the mounting column and the fixing groove, the brake pad friction block in the friction assembly can be assembled through the cooperation of the dish-shaped clamp spring and the mounting column, the brake pad friction block is arranged in the clamping groove on the non-dovetail steel backboard, and the brake pad friction block can rotate.
Drawings
FIG. 1 is a schematic plan view of a non-dovetail steel backing plate of a non-dovetail powder metallurgy brake pad according to the present utility model;
FIG. 2 is a schematic view of a three-dimensional assembly of a friction assembly of a non-dovetail powder metallurgy brake pad according to the present utility model;
FIG. 3 is a schematic view of a non-dovetail powder metallurgy brake pad according to the present utility model;
in the figure: 1. a non-dovetail steel backplate; 2. a clamping groove; 3. dish-shaped clamp springs; 4. a mounting column; 5. a friction assembly; 501. a mounting pad; 502. brake pad friction blocks; 6. a fixing hole; 7. a mounting hole; 8. chip removal holes; 9. a fixing groove.
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. 1-3, the non-dovetail type powder metallurgy brake pad comprises a non-dovetail type steel backboard 1 and a plurality of friction components 5, wherein a plurality of clamping grooves 2 are formed in the upper surface of the non-dovetail type steel backboard 1, a plurality of fixing grooves 9 are formed in the lower surface of the non-dovetail type steel backboard 1, the friction components 5 comprise mounting pads 501, a plurality of brake pad friction blocks 502 are mounted on the upper surface of each mounting pad 501, a corresponding group of brake pad friction blocks 502 are arranged in a triangular mode, fixing holes 6 are formed in the center of the upper surface of each mounting pad 501, mounting columns 4 are clamped in the center of the lower portions of the inner walls of the plurality of clamping grooves 2 through corresponding disc-shaped clamping springs 3, the lower ends of the plurality of mounting columns 4 penetrate through the lower portions of the inner walls of the corresponding clamping grooves 2 and extend into the fixing grooves 9, the upper portions of the outer walls of the plurality of the mounting columns 4 are rotatably connected with the inner walls of the corresponding fixing holes 6, the disc-shaped clamping grooves 2 are mounted through the disc-shaped friction blocks 3 in the cooperation of the mounting columns 4 and the friction blocks 502 in the friction components 5, and the brake pad friction blocks 502 are rotatably mounted in the clamping grooves 2 on the non-dovetail type steel backboard 1.
As shown in figure 1, the non-dovetail steel backboard 1 is formed by combining a base layer and a corrosion-resistant layer, the corrosion-resistant layer is made of polytetrafluoroethylene material, the polytetrafluoroethylene material is a high polymer prepared by polymerizing tetrafluoroethylene as a monomer, the heat resistance and the cold resistance are excellent, the material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents, meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance, the friction coefficient is extremely low, so that the non-dovetail steel backboard is used as a lubricating effect, the non-dovetail steel backboard 1 is also an ideal coating for easily cleaning the inner layer of a water pipe, the damage of the non-dovetail steel backboard 1 can be well prevented, the service life of the non-dovetail steel backboard 1 is prolonged, a plurality of chip removal holes 8 are formed in the upper surface of the non-dovetail steel backboard 1, the chip removal holes 8 are distributed on the non-dovetail steel backboard 1 in a staggered manner, waste chips generated by abrasion can be discharged in time, the normal use of the non-dovetail steel backboard 1 and the scratch condition of a brake disc are reduced, the non-dovetail steel backboard 1 is of a plate structure with a back strap mounting guide groove, and the non-dovetail steel backboard 1 is provided with mounting holes on two sides at the designated positions, and the whole brake disc is convenient to install in the designated positions.
As shown in fig. 2 and 3, the shapes and sizes of the friction components 5 are consistent, the brake pad friction blocks 502 are all formed by sintering metal friction materials, the surfaces are smooth, the brake energy born by the brake pad friction blocks 502 in unit area is guaranteed to be the same, the abrasion of the brake pad friction blocks 502 in unit area is guaranteed to be the same, the service life of the whole brake pad can be effectively prolonged, the friction components 5 are tightly connected with the non-dovetail steel backboard 1 and are not welded, and the non-dovetail steel backboard 1 and the brake pad friction body 502 are guaranteed not to fall off in the high-speed friction braking process.
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 (6)
1. The non-dovetail type powder metallurgy brake pad comprises a non-dovetail type steel back plate (1) and a plurality of friction components (5), and is characterized in that: the friction assembly comprises a non-dovetail steel backboard (1), wherein a plurality of clamping grooves (2) are formed in the upper surface of the non-dovetail steel backboard (1), a plurality of fixing grooves (9) are formed in the lower surface of the non-dovetail steel backboard (1), the friction assembly (5) comprises a mounting pad (501), a plurality of brake pad friction blocks (502) are mounted on the upper surface of the mounting pad (501), a corresponding group of brake pad friction blocks (502) are arranged in a triangular mode, and a fixing hole (6) is formed in the center of the upper surface of the mounting pad (501);
the center of the lower parts of the inner walls of the clamping grooves (2) are respectively clamped with a mounting column (4) through corresponding dish-shaped clamp springs (3), and the lower ends of the mounting columns (4) penetrate through the lower parts of the inner walls of the corresponding clamping grooves (2) and extend into the fixing grooves (9);
the upper parts of the outer walls of the mounting columns (4) are rotationally connected with the inner walls of the corresponding fixing holes (6).
2. The non-dovetail powder metallurgy brake pad according to claim 1, wherein: the friction assemblies (5) are tightly connected with the non-dovetail steel backboard (1) and are free of gaps.
3. The non-dovetail powder metallurgy brake pad according to claim 1, wherein: the non-dovetail steel backboard (1) is formed by combining a base layer and a corrosion-resistant layer.
4. The non-dovetail powder metallurgy brake pad according to claim 1, wherein: the friction assemblies (5) are identical in shape and size, and the brake pad friction blocks (502) are all formed by sintering metal friction materials and have smooth surfaces.
5. The non-dovetail powder metallurgy brake pad according to claim 1, wherein: the non-dovetail steel backboard (1) is characterized in that a plurality of chip removal holes (8) are formed in the upper surface of the non-dovetail steel backboard (1), and the chip removal holes (8) are distributed on the non-dovetail steel backboard (1) in a staggered mode.
6. The non-dovetail powder metallurgy brake pad according to claim 1, wherein: the non-dovetail steel backboard (1), the non-dovetail steel backboard (1) is of a plate structure with a rear strap provided with a mounting guide groove, and mounting holes (7) are formed in two sides of the upper surface of the non-dovetail steel backboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321807146.8U CN220687902U (en) | 2023-07-11 | 2023-07-11 | Non-dovetail type powder metallurgy brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321807146.8U CN220687902U (en) | 2023-07-11 | 2023-07-11 | Non-dovetail type powder metallurgy brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687902U true CN220687902U (en) | 2024-03-29 |
Family
ID=90406683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321807146.8U Active CN220687902U (en) | 2023-07-11 | 2023-07-11 | Non-dovetail type powder metallurgy brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687902U (en) |
-
2023
- 2023-07-11 CN CN202321807146.8U patent/CN220687902U/en active Active
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| GR01 | Patent grant |