CN210106457U - Porous brake disc capable of reducing friction sheet loss - Google Patents
Porous brake disc capable of reducing friction sheet loss Download PDFInfo
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- CN210106457U CN210106457U CN201920711339.0U CN201920711339U CN210106457U CN 210106457 U CN210106457 U CN 210106457U CN 201920711339 U CN201920711339 U CN 201920711339U CN 210106457 U CN210106457 U CN 210106457U
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- brake disc
- friction
- conical hole
- hole
- disc
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 7
- 239000011148 porous material Substances 0.000 abstract description 7
- 238000010008 shearing Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model provides a reduce porous brake disc of friction piece loss, includes the brake disc disk body, and it has a plurality of heat dissipation through-holes to distribute on the friction surface of brake disc disk body, heat dissipation through-hole is connected by two coaxial bell mouth one and bell mouth two of opposite direction and is formed, and wherein bell mouth one is located the friction surface side, and bell mouth one forms the transition inclined plane by the big from the little gradual change along axial outside-in diameter, and bell mouth two are located the brake disc disk body inboard. The utility model discloses at every hole periphery of two inside and outside friction surfaces of brake disc, design out the transition inclined plane, in the braking process, the hole contact on friction disc and the friction surface becomes the obtuse angle by original right angle, has reduced the shearing force of pore pair friction disc, slows down scraping of quotation pore pair friction disc greatly and cuts and shearing action, reduces the loss of friction disc by a wide margin, reduces the change frequency of friction disc, practices thrift cost and time, improves economic benefits.
Description
Technical Field
The utility model relates to a brake disc for the vehicle, especially a porous brake disc that reduces friction piece loss.
Background
The porous brake disc is a novel product which is optimized and improved on the basis of the traditional common brake disc. The original HT250 material of the brake disc is optimized in chemical composition so as to improve the self wear resistance and thermal fatigue of the material, and the porous structure design is carried out on the disc body of the brake disc by the ventilation principle, so that the heat dissipation area is increased, the axial flow of gas is enhanced, the heat dissipation capacity of the disc body is greatly improved, the thermal deformation of the disc body is reduced, and the brake stability and the brake sensitivity are greatly improved; meanwhile, due to the existence of the uniform distribution holes, the roughness of the disk surface is increased, and the friction coefficient of the material is increased; meanwhile, the disk surface has greatly enhanced sewage discharge and drainage capability; in addition, the uniform holes can effectively eliminate the stress of the disk surface and prevent the disk surface from generating radial cracks. The driving safety is greatly improved, and the driving comfort is greatly improved.
The novel porous brake disc is gradually commented by users with the advantages of excellent braking performance, good heat dissipation, good deformation resistance, good wear resistance, long service life, reduced vibration and noise, light weight, good safety performance and the like.
Disclosure of Invention
To the problem that the friction piece loss is big more greatly of porous brake disc in the use, the utility model provides a reduce porous brake disc of friction piece loss.
The utility model provides a technical scheme is: the utility model provides a reduce porous brake disc of friction piece loss, includes the brake disc disk body, and it has a plurality of heat dissipation through-holes, characterized by to distribute on the friction surface of brake disc disk body: the heat dissipation through hole is formed by connecting a first coaxial conical hole and a second conical hole in opposite directions, wherein the first conical hole is located on the friction surface side, the diameter of the first conical hole is gradually changed from large to small along the axial direction from outside to inside to form a 45 +/-5-degree transition inclined plane, the second conical hole is located on the inner side of the disc body of the brake disc, the diameter of the second conical hole is the same as that of the first conical hole, and the diameter of the second conical hole is the diameter of the smallest cross section of the first conical hole and the second conical hole.
The taper of the first conical hole is larger than that of the second conical hole, and the hole depth of the first conical hole is smaller than that of the second conical hole.
The ratio of the hole depth of the first conical hole to the hole depth of the second conical hole is 1:5-1: 6.
The axial two sides of the brake disc body are friction surfaces, the middle part of the brake disc body is a middle air channel, the middle air channel is provided with heat dissipation through holes along the axial two sides of the brake disc body, and the middle air channel is communicated with the heat dissipation through holes.
The heat dissipation through holes are uniformly distributed on the friction surface of the disc body.
The brake disc is a casting molding disc, and the heat dissipation through holes are casting molding holes.
The utility model discloses at every hole periphery of two inside and outside friction surfaces of brake disc, design 45 +/-5 transition inclined planes, in the braking process, the hole contact on friction disc and the friction surface becomes the obtuse angle by original right angle, and the shearing force of pore pair friction disc diminishes, just so can slow down scraping of quotation pore pair friction disc greatly and cut with shearing action, reduces the loss of friction disc by a wide margin, reduces the change frequency of friction disc, practices thrift cost and time, improves economic benefits.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view F-F of FIG. 1;
fig. 3 is a partially enlarged view of fig. 2 at K.
Detailed Description
Referring to fig. 1-3, the utility model discloses a brake disc disk body 1, it has a plurality of heat dissipation through-holes 2 to distribute on the friction surface 3 of brake disc disk body, heat dissipation through-hole 2 is connected by coaxial bell mouth one 2.1 and bell mouth two 2.2 of two opposite directions and constitutes, wherein bell mouth one 2.1 is located the friction surface side, bell mouth one 2.1 forms 45 degrees 5 transition inclined planes by big gradual change from small to small along axial outside-in diameter, bell mouth two 2.2 is located brake disc disk body 1 inboard, bell mouth two 2.2 is the same with bell mouth one 2.1 junction diameter of hole, the diameter of hole of this junction is the minimum cross section diameter of bell mouth two 2.2 and bell mouth one 2.1.
The taper of the first conical hole 2.1 is larger than that of the second conical hole 2.2, and the hole depth of the first conical hole 2.1 is smaller than that of the second conical hole 2.2.
The ratio of the hole depth of the first conical hole 2.1 to the hole depth of the second conical hole 2.2 is 1:5-1: 6.
The axial both sides of brake disc disk body 1 are friction surface 3, and the middle part is middle wind channel 4, and middle wind channel 4 all is equipped with heat dissipation through-hole 2 along 1 axial both sides of brake disc disk body, and middle wind channel 4 is linked together with heat dissipation through-hole 2.
The heat dissipation through holes 2 are uniformly distributed on the friction surface of the disc body.
The brake disc is a casting molding disc, and the heat dissipation through holes are casting molding holes. The heat dissipation through holes are brought out by sand cores of the middle air duct during casting, and the hole diameter or the hole width of the middle air duct is larger than the diameter of the heat dissipation through holes due to the casting draft.
Based on frictional force only relevant with material and roughness, irrelevant with quality and area of contact, the utility model designs an above-mentioned structure, at every hole periphery of two inside and outside friction surfaces of brake disc, design 45 +/-5 transition inclined planes (as shown in figure 3), the braking in-process, the hole contact on friction disc and the friction surface becomes the obtuse angle by original right angle, just so can slow down scraping of quotation pore pair friction disc greatly and cut and shear effect to platform frame contrast experiment has been done on inertia formula car brake test bench specially.
The utility model discloses a novel porous brake disc A (the hole periphery that is located the friction face side has the heat dissipation through-hole of transition inclined plane) and current brake disc B (the hole periphery that is located the friction face side is the heat dissipation through-hole of perpendicular)
The experimental measurement results are as follows:
brake disc A:
1 average wear amount of friction plate: inner sheet: 0.78 mm outer sheet: 0.98mm
2 friction plate weight consumption: inner sheet: 32.2g outer sheet: 32.6g
3 average brake disc wear: 0.012mm
4, braking clearance: before the test: after the 1.0mm test: 1.25mm
And a brake disc B:
1 average wear amount of friction plate: inner sheet: 1.60 mm outer sheet: 1.24mm
2 friction plate weight consumption: inner sheet: 53.5g outer sheet: 43.0g
3 average brake disc wear: 0.005mm
4, braking clearance: before the test: after the 1.0mm test: 1.3mm
According to data analysis obtained from the experiments, the difference of the average abrasion loss of the two brake discs is not large, only 0.007mm difference can be ignored, and the abrasion loss of the novel porous brake disc is reduced compared with the abrasion loss of the original porous brake disc according to the analysis of the average abrasion loss and the weight consumption of the friction plate.
The utility model discloses the advantage of brake disc:
1. at every hole periphery of two inside and outside friction surfaces of brake disc, design 45 +/-5 transition inclined planes, braking in-process, the hole contact on friction disc and the friction surface becomes the obtuse angle by original right angle, and the shearing force of pore pair friction disc diminishes, just so can slow down scraping of quotation pore pair friction disc greatly and cut with the shearing action, reduces the loss of friction disc by a wide margin, reduces the change frequency of friction disc, practices thrift cost and time, improves economic benefits.
2. The novel hole structure is realized by a casting forming mode, a corresponding 45 +/-5-degree transition inclined plane structure is made on a casting mould of the brake disc according to design requirements, the structure is directly made on a blank during casting production, the production efficiency is high, and the cost is not increased.
Claims (6)
1. The utility model provides a reduce porous brake disc of friction piece loss, includes the brake disc disk body, and it has a plurality of heat dissipation through-holes, characterized by to distribute on the friction surface of brake disc disk body: the heat dissipation through hole is formed by connecting a first coaxial conical hole and a second conical hole in opposite directions, wherein the first conical hole is located on the friction surface side, the diameter of the first conical hole is gradually changed from large to small along the axial direction from outside to inside to form a 45 +/-5-degree transition inclined plane, the second conical hole is located on the inner side of the disc body of the brake disc, the diameter of the second conical hole is the same as that of the first conical hole, and the diameter of the second conical hole is the diameter of the smallest cross section of the first conical hole and the second conical hole.
2. A porous brake disc for reducing wear on friction pads as claimed in claim 1 wherein: the taper of the first conical hole is larger than that of the second conical hole, and the hole depth of the first conical hole is smaller than that of the second conical hole.
3. A porous brake disc for reducing wear on friction pads as claimed in claim 2 wherein: the ratio of the hole depth of the first conical hole to the hole depth of the second conical hole is 1:5-1: 6.
4. A porous brake disc with reduced friction pad wear according to claim 1 or 2 or 3 wherein: the axial two sides of the brake disc body are friction surfaces, the middle part of the brake disc body is a middle air channel, the middle air channel is provided with heat dissipation through holes along the axial two sides of the brake disc body, and the middle air channel is communicated with the heat dissipation through holes.
5. A porous brake disc for reducing wear on friction pads as claimed in claim 4 wherein: the heat dissipation through holes are uniformly distributed on the friction surface of the disc body.
6. A porous brake disc for reducing wear on friction pads as claimed in claim 4 wherein: the brake disc is a casting molding disc, and the heat dissipation through holes are casting molding holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711339.0U CN210106457U (en) | 2019-05-17 | 2019-05-17 | Porous brake disc capable of reducing friction sheet loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920711339.0U CN210106457U (en) | 2019-05-17 | 2019-05-17 | Porous brake disc capable of reducing friction sheet loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106457U true CN210106457U (en) | 2020-02-21 |
Family
ID=69561480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920711339.0U Active CN210106457U (en) | 2019-05-17 | 2019-05-17 | Porous brake disc capable of reducing friction sheet loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106457U (en) |
-
2019
- 2019-05-17 CN CN201920711339.0U patent/CN210106457U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430000, 21st Floor, Chensheng Center, No. 130 Shipailing Road, Wuchang District, Wuhan City, Hubei Province Patentee after: Hubei Provincial Institute of Mechanical and Electrical Engineering Group Co.,Ltd. Address before: 430070 Hubei Province, Wuhan city Wuchang District shipailing No. 118 Patentee before: HUBEI MECHANICAL AND ELECTRICAL RESEARCH AND DESIGN INSTITUTE CO.,LTD. |
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| CP03 | Change of name, title or address |