CN202040240U - Rear wheel hub and brake drum assembly for automobile - Google Patents
Rear wheel hub and brake drum assembly for automobile Download PDFInfo
- Publication number
- CN202040240U CN202040240U CN2011201315231U CN201120131523U CN202040240U CN 202040240 U CN202040240 U CN 202040240U CN 2011201315231 U CN2011201315231 U CN 2011201315231U CN 201120131523 U CN201120131523 U CN 201120131523U CN 202040240 U CN202040240 U CN 202040240U
- Authority
- CN
- China
- Prior art keywords
- wheel hub
- rear wheel
- brake drum
- automobile
- heat
- 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 a rear wheel hub and brake drum assembly for an automobile, which belongs to the field ofautomobile components such as a brake system. The rear wheel hub and brake drum assembly comprises a rear wheel hub and a brake drum, wherein the brake drum is connected with the rear wheel hub, a heat conducting hole is arranged on the rear wheel hub, and the rear wheel hub is internally provided with a fan blade shaped mechanism. For the rear wheel hub, the gas in the cavity of the rear wheel hub is driven when a fan rotates, the heat is conducted out by the heat conducting hole, and the heat circulation inside and outside the rear wheel hub is realized, thereby reducing the temperature of the rear wheel hub. For example, the diameter of a tyre is 800 mm and rotates 6.6 circle in every second, and the gas in the cavity is driven to rotate by the stirring of fan blades, so that the heat passes through the conducting hole, inside and outside heat circulation is realized to some extent, and the temperature in the cavity can be lowered by about 0.1-0.5 DEG C when the automobile is driven at the speed of 60km/h.
Description
Technical field
The utility model belongs to automobile component braking system field, is specifically related to the automotive hub brake drum assembly.
Background technique
In the prior art, the braking principle of drum brake is: rear-wheel hub is connected with brake drum, forms brake drum assembly, plays braking action by braking shoes and brake drum surface of contact.In the process of automobile actual travel, especially long when sloping up and down, because braking causes brake drum to produce a large amount of heats for a long time.A large amount of heats can't be derived, and causes brake drum to break, and causes braking failure.The way that solves this type of problem at present is in long-time braking back to be watered to reach the purpose of cooling in the brake drum outside.Yet this kind method needs often to prepare a large amount of water, and is very inconvenient.
The model utility content
To be automobile drum brake produce bigger heat to the technical problems to be solved in the utility model in long-term climbing can't get rid of, and causes brake drum to break, provide a kind of can be when rotating the automobile back wheel hub brake drum assembly of heat elimination and cooling.
The technical solution of the utility model realizes in the following manner: a kind of automobile back wheel hub brake drum assembly, comprise rear-wheel hub and the brake drum that links to each other with rear-wheel hub, and described rear-wheel hub is provided with thermal hole, and fan page or leaf shape mechanism is arranged in the rear-wheel hub.
Described brake drum is the brake drum of vermicular cast iron material.
Fan of the present utility model drives the gas in the rear-wheel hub cavity when rotating, heat by heat circulation inside and outside the thermal hole derivation realization rear-wheel hub, can be reduced the temperature in the rear-wheel hub.As diameter of tyres is to enclose 800mm, each seconds 6.6, rotate by the gas in the stirring drive chamber of fan fan sheet, and then heat realized to a certain degree inside and outside heat circulation by thermal hole, in the travelling of automobile 60km/h, can reduce about 0.1 ~ 0.5 ° of cavity temperature.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic.
Embodiment
As depicted in figs. 1 and 2, automobile back wheel hub brake drum assembly of the present utility model comprises rear-wheel hub 1 and the brake drum 3 that links to each other with rear-wheel hub 1, and described rear-wheel hub 1 is provided with thermal hole 2, and fan page or leaf shape mechanism 4 is arranged in the rear-wheel hub 1.The utility model is realized air and extraneous exchange in the rear-wheel hub 1 by fan page or leaf shape mechanism 4 and thermal hole 2, has reduced overstocking of heat, prevents that brake drum from breaking, and reduced braking failure.
The brake drum 3 that described brake drum 3 is vermicular cast iron materials.The utility model replaces the gray cast iron brake drum with the brake drum of vermicular cast iron material, prolongs the life-span of brake drum.Compare with gray cast iron, the thermal fatigue resistance of vermicular cast iron brake drum strengthens more than one times, adds the fanning action of wheel hub, has reduced when long distance braking, and the cracking phenomena of the brake drum in the wheel hub brake drum assembly has guaranteed the braking quality of assembly.
Claims (2)
1. an automobile back wheel hub brake drum assembly comprises rear-wheel hub (1) and the brake drum (3) that links to each other with rear-wheel hub (1), and it is characterized in that: described rear-wheel hub (1) is provided with thermal hole (2), and fan page or leaf shape mechanism (4) is arranged in the rear-wheel hub (1).
2. automobile back wheel hub brake drum assembly according to claim 1 is characterized in that: described brake drum (3) is the brake drum (3) of vermicular cast iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201315231U CN202040240U (en) | 2011-04-29 | 2011-04-29 | Rear wheel hub and brake drum assembly for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201315231U CN202040240U (en) | 2011-04-29 | 2011-04-29 | Rear wheel hub and brake drum assembly for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040240U true CN202040240U (en) | 2011-11-16 |
Family
ID=44967686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201315231U Expired - Fee Related CN202040240U (en) | 2011-04-29 | 2011-04-29 | Rear wheel hub and brake drum assembly for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362996A (en) * | 2012-04-09 | 2013-10-23 | 十堰龙腾达工业有限公司 | Automobile drum type brake heat dissipation system |
| CN108775355A (en) * | 2018-07-30 | 2018-11-09 | 陈存芝 | A kind of wheel hub that can voluntarily cool down |
-
2011
- 2011-04-29 CN CN2011201315231U patent/CN202040240U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362996A (en) * | 2012-04-09 | 2013-10-23 | 十堰龙腾达工业有限公司 | Automobile drum type brake heat dissipation system |
| CN108775355A (en) * | 2018-07-30 | 2018-11-09 | 陈存芝 | A kind of wheel hub that can voluntarily cool down |
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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: 20111116 Termination date: 20170429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |