CN203082085U - Brake drum - Google Patents
Brake drum Download PDFInfo
- Publication number
- CN203082085U CN203082085U CN 201320026639 CN201320026639U CN203082085U CN 203082085 U CN203082085 U CN 203082085U CN 201320026639 CN201320026639 CN 201320026639 CN 201320026639 U CN201320026639 U CN 201320026639U CN 203082085 U CN203082085 U CN 203082085U
- Authority
- CN
- China
- Prior art keywords
- brake hub
- brake drum
- inner ring
- heat
- hub body
- 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 motor vehicle braking device, and particularly relates to a brake drum. The brake drum is an important automobile part which is matched with an automobile brake pad so that braking of a heavy-duty automobile is realized. When the automobile brakes frequently under load conditions, a large amount of heat can be generated due to high pressure friction between the brake pad and the brake drum, the method that cold water is used for cooling is usually used by a driver to lower the temperature of a braking system, as a result, an existing brake drum often cracks or bursts due to expansion caused by heat and contraction caused by cold, and when the brake drum cracks or bursts badly, traffic accidents can be caused to endanger life and property safety. To realize uniform heat dissipation of the brake drum, the braking device which is efficient and uniform in heat dissipation is provided. Annular grooves and heat-dissipating circulating passageways are evenly formed in the inner surface of a brake drum body or the outer surface of an inner lining, radial wind inlet through holes are formed in the annular grooves, the effect that the heat is evenly dissipated is effectively guaranteed, the effect that the brake drum is used normally is guaranteed, and therefore the property safety and the personal safety of people are guaranteed.
Description
Technical field
The utility model relates to a kind of brake of motor-driven vehicle device, particularly relates to a kind of brake hub.
Background technique
Thereby brake hub is a kind of important automobile component of realizing heavy automobile brake that cooperates with automobile brake sheet, and heavy-duty car is because quality is bigger, and inertia is also bigger, so also very high to the requirement of its brake member.When automobile under loading condition during frequently braking, high pressure friction between brake block and the brake hub can produce a large amount of heat, the brake hub temperature is raise suddenly, cause the sensitivity of brake system to reduce, the driver uses the mode with the cold water cast to reduce the brake hub temperature usually, produce the phenomenon of expanding with heat and contract with cold because of temperature shock easily like this, cause brake hub to produce slight crack, produce potential safety hazard, can cause brake failure when serious, lead to traffic accident, most patent of existing application is such as Chinese patent: 200820061991.4; 200720008859.2; All be to adopt to install intensity and the friction problem that liner solves brake hub additional, but also can produce the problems such as bad, mounting or dismounting complexity of dispelling the heat simultaneously, increased cost of production.
Summary of the invention
Goal of the invention of the present utility model: be to overcome the defective that exists in the prior art, solved the heat dissipation problem of brake hub a large amount of heat of generation after rubbing with the brake block high pressure.
The technical solution of the utility model is:
A kind of brake hub, comprise the brake hub body, one end inboard of described brake hub body is provided with annular plate, evenly be provided with fixed hole on the circumference of annular plate, the internal surface of described brake hub body is provided with circular groove and heat radiation circulation canal, offers at least one radially air intake through hole in circular groove;
The material of brake hub body is casting carbon steel or cast low alloy steel, and radially the air intake through hole is 3～6;
Install the hollow cylindrical inner ring bushing that has an expansion joint in the brake hub body additional, the material of inner ring bushing is gray cast iron or wear-resisting alloy steel, and by bolt on brake hub body inner ring, the outer surface of hollow cylindrical inner ring bushing is evenly equipped with many radiating grooves along generatrix direction, and radiating groove and brake hub body internal surface circular groove intersection all offer the air intake through hole;
The outer surface of brake hub inner ring bushing is provided with circular groove and heat radiation circulation canal, in inner ring bushing circular groove and radiating groove intersection, offers the ventilation through hole;
Brake hub body and liner adopt Spielpassung to install.
The beneficial effects of the utility model are:
Brake hub of the present utility model is simple in structure, easy processing, and cost is low, and is effective, implements easily;
The utility model has been realized the even quick heat radiating of brake hub; In brake hub, install the characteristics that overcome the brake hub weak strength after the inner ring bushing additional, increased the bulk strength of brake hub, also possess good performance of heat dissipation simultaneously;
Offered circular groove and heat radiation circulation canal in brake hub body inboard, and be provided with at least one air intake through hole, can solve the heat dissipation problem after brake hub is subjected to the high pressure friction, made in the brake hub not can Yin Wendu too high and weaken braking effect;
The utility model has installed the hollow cylindrical inner ring bushing that has an expansion joint additional, the material of inner ring bushing is gray cast iron or wear-resisting alloy steel, and inner ring bushing and brake hub body pass through bolt, the compound brake hub of being formed like this, solved original brake hub is easy to generate slight crack or explosion because of expanding with heat and contract with cold technical problem, it is convenient to adopt bolt to connect mounting or dismounting, changes easily and regular maintenance;
The utility model is provided with many radiating grooves on brake hub internal surface, hollow cylindrical inner ring bushing outer surface, and radiating groove and brake hub body internal surface and inner ring bushing outer surface circular groove intersection, all offer the air intake through hole, good like this solution the ventilation and heat problem after the friction of brake hub and brake block, heat can in time be discharged uniformly, the cold wind that guarantees advances, and the reciprocation cycle that hot blast goes out makes brake system keep temperature constant.
Description of drawings
Fig. 1 is one of structural representation of brake hub;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 be brake hub structural representation two;
Fig. 4 is band Fig. 3 plan view;
Fig. 5 be brake hub structural representation three;
Among the figure, 1 is the brake hub body; 2 is fixed hole; 3 is circular groove; 4 is the air intake through hole; 5 is the hollow cylindrical inner ring bushing; 6 is bolt; 7 is the expansion joint; 8 is radiating groove.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done detailed description.
Embodiment one: brake hub of the present utility model mainly comprises brake hub body 1, end inboard at brake hub body 1 is provided with annular plate, evenly be provided with fixed hole 2 on the circumference of annular plate, in brake hub body 1, be provided with circular groove 3 and heat radiation circulation canal, in circular groove 3, offer at least one radially air intake through hole 4, the material selection casting carbon steel and the cast low alloy steel of brake hub body, increase the intensity and the hardness of brake hub body like this, make brake hub be not easy to take place deformation, and the radially air intake through hole of offering is 3～6.
Embodiment two: present embodiment and embodiment's one same section do not repeat, different is: installed the hollow cylindrical inner ring bushing 5 that has an expansion joint 7 in the brake hub additional, the material of inner ring bushing is gray cast iron or abrasion resistance alloy, and be fixed on the brake hub body inner ring by bolt 6, brake hub body 1 adopts Spielpassung with inner ring bushing 5, expansion joint 7 was running into cold-peace when overheated, can be from flexible, guarantee quality of fit, for the ventilation and heat convenience, at the outer surface of hollow cylindrical inner ring bushing 5 along uniform many radiating grooves 8 that offer of generatrix direction, and in each radiating groove 8 and brake hub body internal surface circular groove 3 intersections, all offer air intake through hole 4, come the ventilation of further increase system like this, make cold wind advance hot blast and go out, guarantee the timely discharge of heat.
Embodiment three: present embodiment does not repeat with embodiment's two identical parts, different is: install a hollow cylindrical inner ring bushing 5 that has expansion joint 7 in the brake hub additional, guarantee system's good heat radiating in order further to enlarge ventilation, outer surface in inner ring bushing offers circular groove 3 and heat radiation circulation canal, in inner ring bushing circular groove 3 and radiating groove 8 intersections, be provided with vent hole 4.
Claims (4)
1. brake hub, comprise the brake hub body, one end inboard of described brake hub body is provided with annular plate, evenly be provided with fixed hole on the circumference of annular plate, it is characterized in that: the internal surface of described brake hub body is provided with circular groove, offers at least one radially air intake through hole in circular groove.
2. brake hub according to claim 1 is characterized in that: the material of described brake hub body is casting carbon steel or cast low alloy steel, and radially the air intake through hole is 3～6.
3. brake hub according to claim 1, it is characterized in that: install the hollow cylindrical inner ring bushing that has an expansion joint in the described brake hub body additional, the material of inner ring bushing is gray cast iron or wear-resisting alloy steel, and by bolt on brake hub body inner ring, the outer surface of hollow cylindrical inner ring bushing is evenly equipped with many radiating grooves along generatrix direction, and radiating groove and brake hub body internal surface circular groove intersection all offer the air intake through hole.
4. brake hub according to claim 3 is characterized in that: the outer surface of described brake hub inner ring bushing is provided with circular groove, in inner ring bushing circular groove and radiating groove intersection, all offers the ventilation through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026639 CN203082085U (en) | 2013-01-18 | 2013-01-18 | Brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026639 CN203082085U (en) | 2013-01-18 | 2013-01-18 | Brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082085U true CN203082085U (en) | 2013-07-24 |
Family
ID=48827926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320026639 Expired - Fee Related CN203082085U (en) | 2013-01-18 | 2013-01-18 | Brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075447A (en) * | 2013-01-18 | 2013-05-01 | 庞玉亮 | Brake drum |
| CN107191517A (en) * | 2017-06-30 | 2017-09-22 | 龙岩市归鸿贸易有限公司 | A kind of brake drum with wear-resistant block and its casting technique |
-
2013
- 2013-01-18 CN CN 201320026639 patent/CN203082085U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075447A (en) * | 2013-01-18 | 2013-05-01 | 庞玉亮 | Brake drum |
| CN107191517A (en) * | 2017-06-30 | 2017-09-22 | 龙岩市归鸿贸易有限公司 | A kind of brake drum with wear-resistant block and its casting technique |
| CN107191517B (en) * | 2017-06-30 | 2023-07-07 | 山东宏马工程机械有限公司 | Brake drum with wear-resisting blocks and casting process thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20180118 |