CN204921784U - Automobile brake drum - Google Patents
Automobile brake drum Download PDFInfo
- Publication number
- CN204921784U CN204921784U CN201520703126.5U CN201520703126U CN204921784U CN 204921784 U CN204921784 U CN 204921784U CN 201520703126 U CN201520703126 U CN 201520703126U CN 204921784 U CN204921784 U CN 204921784U
- Authority
- CN
- China
- Prior art keywords
- brake drum
- layer
- heat
- automobile brake
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automobile brake drum. What it will be solved is the not good problem of brake drum heat dispersion. It includes cylindric body and sets up in the apparent ring of body form boss that wherein, ring form boss includes three metal levels, and its from interior to exterior is body layer, strengthening layer and heat dissipation layer in proper order, and characteristics are: be equipped with a plurality of louvres along the brake drum axis direction on the strengthening layer. The utility model discloses simple structure, dispel the heat with louvre on the strengthening layer jointly in heat dissipation layer, and its heat dispersion is good.
Description
Technical field
The utility model relates to the drum of outer engagement or interior engagement brake, especially a kind of automobile brake drum.
Background technique
Brake device for car and brake drum thereof, it is the vitals of automobile brake, when automobile under steam needs brake to brake, driver steps on braking footrest, arrestment mechanism promotes brake shoe iron block, make to be fixedly connected on friction plate on shoes and brake drum produces braking friction, check wheel of the bus, realize automobile brake.But when braking comparatively frequent, friction plate and brake drum rub and produce large calorimetric, especially when temperature is higher, the parts such as brake drum, tire be heated not easily transmit, lost, when break drum temperature is too high, the brake failure very easily caused.
For solving the problem, prior art proposes: be provided with circular boss in the body appearance of brake drum, this boss is divided into body layer, strengthened layer and heat dissipating layer from inside to outside successively.Such as, such one " automobile brake drum " is disclosed in the CN201382105Y Chinese utility model patent specification that on January 30th, 2010 is announced, this automobile brake drum is owing to being also provided with strengthened layer and heat dissipating layer outward in body layer, both brake drum had been made to have higher bulk strength, brake drum is made again to have heat dispersion well, set about from two aspects simultaneously, automobile brake drum thermal fatigue resistance is significantly improved.But in actual use, the heat dispersion of brake drum remains unchanged some shortcoming.
Summary of the invention
There is the not good deficiency of heat dispersion to overcome existing automobile brake drum, the utility model provides that a kind of structure is simple, the automobile brake drum of perfect heat-dissipating.
The utility model solves the technological scheme that its technical problem adopts: a kind of automobile brake drum, it circular boss comprising cylindric body and be arranged at body appearance, described circular boss comprises three metal layers, it is followed successively by body layer, strengthened layer and heat dissipating layer from the inside to the outside, and its feature is: on described strengthened layer, be provided with some radiation holes along brake drum axial direction.
Described radiation hole is through hole.
Described radiation hole is uniform around brake drum axis annular.
The utility model is outside the body layer of brake drum, be provided with the circular boss being followed successively by body layer, strengthened layer and heat dissipating layer composition from the inside to the outside, and strengthened layer is provided with some radiation holes along brake drum axial direction, and its structure is simple; The heat part that automobile brake drum and brake lining produce when rubbing is distributed by heat dissipating layer, and the heat failing to distribute is delivered to strengthened layer, then utilize the mobility of gas by this heat Quick diffusing by the radiation hole that strengthened layer is offered, radiation hole on heat dissipating layer and strengthened layer dispels the heat jointly, its perfect heat-dissipating.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is a kind of structure sectional view of the present utility model;
Fig. 2 is the left view of Fig. 1.
Mark in figure: 1. body, 2. circular boss, 201. body layer, 202. strengthened layers, 203. heat dissipating layers, 2021. radiation holes.
Embodiment
In Fig. 1, Fig. 2, a kind of automobile brake drum, it circular boss 2 comprising cylindric body 1 and be arranged at body 1 appearance.
As shown in Figure 1 and Figure 2, circular boss 2 comprises three metal layers, and it is followed successively by body layer 201, strengthened layer 202 and heat dissipating layer 203 from the inside to the outside.Wherein, body layer 201, for support structure, adopts cast iron materials and body 1 to make one; Strengthened layer 202, for strengthening the bulk strength of brake drum, adopts low-carbon alloy; Heat dissipating layer 203, for brake drum heat radiation, adopts the metallic copper material of perfect heat-dissipating.
For improving heat radiation level, as shown in Figure 1, 2, strengthened layer 202 is provided with some radiation holes 2021 along brake drum axial direction.
In order to increase gas fluidity, as shown in Figure 1, radiation hole 2021 is through hole.
For ensureing the stressed of wheel hub and heat radiation evenly, as shown in Figure 2, radiation hole 2021 is around the uniform setting of brake drum axis annular.
When the utility model uses, the heat part that automobile brake drum and brake lining produce when rubbing is distributed by heat dissipating layer 203, and the heat failing to distribute in time is delivered to strengthened layer 202, then utilize the mobility of gas by this heat Quick diffusing by the radiation hole 2021 that strengthened layer 202 is offered, heat dissipating layer 203 dispels the heat jointly with the radiation hole 2021 on strengthened layer 202, its perfect heat-dissipating.
Claims (3)
1. an automobile brake drum, it circular boss comprising cylindric body and be arranged at body appearance, described circular boss comprises three metal layers, it is followed successively by body layer, strengthened layer and heat dissipating layer from the inside to the outside, it is characterized in that: on described strengthened layer, be provided with some radiation holes along brake drum axial direction.
2. a kind of automobile brake drum according to claim 1, is characterized in that: described radiation hole is through hole.
3. a kind of automobile brake drum according to claim 1 and 2, is characterized in that: described radiation hole is uniform around brake drum axis annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703126.5U CN204921784U (en) | 2015-09-12 | 2015-09-12 | Automobile brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703126.5U CN204921784U (en) | 2015-09-12 | 2015-09-12 | Automobile brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921784U true CN204921784U (en) | 2015-12-30 |
Family
ID=54970915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520703126.5U Expired - Fee Related CN204921784U (en) | 2015-09-12 | 2015-09-12 | Automobile brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921784U (en) |
-
2015
- 2015-09-12 CN CN201520703126.5U patent/CN204921784U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |