CN201568490U - Carbon fiber friction-layer brake drum - Google Patents
Carbon fiber friction-layer brake drum Download PDFInfo
- Publication number
- CN201568490U CN201568490U CN200920229505XU CN200920229505U CN201568490U CN 201568490 U CN201568490 U CN 201568490U CN 200920229505X U CN200920229505X U CN 200920229505XU CN 200920229505 U CN200920229505 U CN 200920229505U CN 201568490 U CN201568490 U CN 201568490U
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- China
- Prior art keywords
- brake drum
- carbon fiber
- friction
- layer
- brake
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a carbon fiber friction-layer brake drum. Under the condition for ensuring the friction properties, radiating properties and thermal fatigue resistance properties of the brake drum, the brake drum has the characteristics of high abrasive resistance, high temperature endurance, even contact of friction pair and continuous actual contact area. The inner surface of the brake drum is spliced with a layer of carbon fiber cloth.
Description
Technical field
The utility model relates to a kind of automobile brake drum, and especially the brake drum internal surface is provided with the brake drum of friction layer.
Background technique
Brake drum is the important component part of drum brakes braking system, in brake process, by exerting pressure, makes friction plate compress the brake drum internal surface, and the brake shoe that does not change produces friction torque to the brake drum of rotation, plays braking action thereby produce braking force.
Traditional brake drum, casting, its compact structure, reliable performance, braking force is big, when brake the good effect of stopping is certainly arranged, and the manufacturing technology level of brake drum is lower, also is the important component part that is used for brake system at first, so low cost of manufacture.But brake drum cause the too high generation phase transformation of temperature rise in the too high and braking process of hardness often easily, and the thermal fatigue resistance deficiency causes its internal surface under the acting in conjunction of tensile stress and fatigability to be easy to generate crackle because its cast component is unreasonable.
Brake drum is when braking, and the moving or stiction that brake block and brake drum internal surface produce makes the brake drum internal surface be subjected to stress.Research thinks that the surface of contact of actual brake drum and friction plate is the heating surface of some spot shapes, because the heat that frequent braking produces makes brake drum internal surface local temperature reach phase transition temperature, structural transformation takes place and has produced residual stress in the cooling rapidly owing to heat conduction immediately.The existence of phase transformation and residual stress reduces the mechanical property of brake drum internal surface, being subjected to being easy to reduce the fatigue strength of material under the frequent brake load effect, just produced crackle thus at regional area, and crackle is further expanded, finally cause the Cracking Failure of brake drum.
It mainly lost efficacy and showed as:
1, brake drum hardness is on the low side, and is not wear-resisting.
2, brake drum hardness is too high, and the white bright spot of hard appears in the braking rear brake, and clamping strap is uneven, the braking abnormal sound.
3, clamping strap produces tired pattern cracking.
For this reason, add radiating fin or aluminum material on brake drum, cool off brake drum and metal brake lining, solving the too high problem of fricative temperature rise, but this is not the solution of high-performance braking device.Though graphite has high thermal conductivity, adopt the high-carbon cast iron casting can improve thermal fatigue resistance, can make the reduction in strength of brake drum.
Summary of the invention
The utility model provides a kind of carbon fiber friction layer brake drum, under the condition that guarantees brake drum frictional behaviour, thermal diffusivity and thermal fatigue resistance, has high wear resistance, high temperature tolerance, and the friction pair contact is even, the characteristics that real contact area is continuous.
The technical solution of the utility model is: carbon fiber friction layer brake drum is characterized in that: the internal surface at brake drum is bonded with one deck carbon fibre cloth.
Beneficial effect:
(1), the carbon fiber friction layer brake drum friction material even tissue of exploitation, surfacing, the friction pair contact that can make brake drum evenly, and surface of contact is continuous.
(2), the high temperature resistant and adhesive material heat-conductive characteristic of brake drum friction layer friction material conducts fricative heat as early as possible, reduced the thermal fatigue of brake drum.
(3), the stickup of carbon fiber layer friction material can solve brake drum casting material composition un-reasonable phenomenon.
(4), do friction material with carbon fiber layer and substitute former internal surface as the brake drum friction pair, can make brake drum hardness even.
Characteristics of the present utility model: (1) coefficient of kinetic friction is high and constant; (2) the smooth no concave-convex in friction layer plane, rubbing contact is even; (3) overload resistance is good; (4) high temperature resistant; (5) heat transfer performance is good.(6) thermal fatigue resistance is good.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is along the sectional view of A-A among Fig. 1.
Fig. 3 is the B place partial enlarged drawing among Fig. 2.
Embodiment
As shown in Figure 1, 2, 3, it is as follows to further describe the utility model: be bonded with carbon fibre cloth 2 on 1 internal surface of brake drum.
The thickness of described carbon fiber layer cloth is generally in the scope of 0.5～1mm.
The method of attaching of carbon fiber friction cloth is: be coated with the special resin alite paste that one deck is high temperature resistant, heat transfer performance is good on the internal surface of brake drum, carbon fiber friction cloth, it be bonded on the brake drum internal surface, then oven dry.
Claims (2)
1. carbon fiber friction layer brake drum, it is characterized in that: the internal surface at brake drum is bonded with one deck carbon fibre cloth.
2. carbon fiber friction layer brake drum according to claim 1 is characterized in that: the thickness of carbon fibre cloth is 0.5～1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920229505XU CN201568490U (en) | 2009-11-06 | 2009-11-06 | Carbon fiber friction-layer brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920229505XU CN201568490U (en) | 2009-11-06 | 2009-11-06 | Carbon fiber friction-layer brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568490U true CN201568490U (en) | 2010-09-01 |
Family
ID=42660775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920229505XU Expired - Fee Related CN201568490U (en) | 2009-11-06 | 2009-11-06 | Carbon fiber friction-layer brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157960A (en) * | 2013-03-20 | 2013-06-19 | 嘉兴四通车轮股份有限公司 | Manufacturing method of brake drum and brake drum |
| CN108223886A (en) * | 2017-08-08 | 2018-06-29 | 河南航天液压气动技术有限公司 | A kind of proportional flow control valve and its Electromagnetic Control mechanism |
-
2009
- 2009-11-06 CN CN200920229505XU patent/CN201568490U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157960A (en) * | 2013-03-20 | 2013-06-19 | 嘉兴四通车轮股份有限公司 | Manufacturing method of brake drum and brake drum |
| CN103157960B (en) * | 2013-03-20 | 2015-12-02 | 嘉兴四通车轮股份有限公司 | A kind of manufacture method of brake drum and a kind of brake drum |
| CN108223886A (en) * | 2017-08-08 | 2018-06-29 | 河南航天液压气动技术有限公司 | A kind of proportional flow control valve and its Electromagnetic Control mechanism |
| CN108223886B (en) * | 2017-08-08 | 2019-11-08 | 河南航天液压气动技术有限公司 | A kind of proportional flow control valve and its Electromagnetic Control mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111106 |