CN212337971U - Special low temperature brake drum of electric motor car - Google Patents
Special low temperature brake drum of electric motor car Download PDFInfo
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- CN212337971U CN212337971U CN202021164939.9U CN202021164939U CN212337971U CN 212337971 U CN212337971 U CN 212337971U CN 202021164939 U CN202021164939 U CN 202021164939U CN 212337971 U CN212337971 U CN 212337971U
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Abstract
The utility model discloses a special low temperature brake drum of electric motor car belongs to automobile parts technical field, has solved current brake drum and can not dispel the heat again because the braking produces high temperature, arouses the brake drum damage easily under this kind of state to the life of brake drum and easily cause the traffic accident has been reduced. The utility model discloses a brake drum, be provided with the inlet port on the mounting terminal surface of brake drum, the face of cylinder of brake drum is provided with the discharge hole, the mounting terminal surface of brake drum with the face of cylinder junction of brake drum is provided with the fretwork hole. The utility model discloses a panel blanking, stretch forming, punch a hole, surface treatment can accomplish production, and the production flow is simply saved and is produced the required energy, production efficiency is high, with low costs, the utility model discloses the outward appearance is pleasing to the eye, the adhesive force is strong, odorless, the heat dissipation is fast, life greatly increased.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to special low temperature brake drum of electric motor car.
Background
On one hand, the traditional brake drum is usually manufactured by adopting a traditional process, the traditional brake drum is made of HT200 cast iron, the required cost is high, in the manufacturing process, HT200 cast iron rough materials need to be melted by a high-temperature electric heating furnace (metal elements need to be added in proportion at the moment), the sand mold is subjected to pre-pressing forming, part casting forming, turning processing, drilling chamfering, liquid state antirust paint spraying and other processes, in the processes, high-temperature smelting is needed, exhaust emission exists, waste sand mold consumables are abandoned, loss and emission of cooling water and other serious pollution exist, the production of a production unit of the process is not allowed at present, a large amount of dust exists in the turning process, the probability of respiratory tract damage and occupational disease to workers at a production line is increased, and when the antirust paint is sprayed, liquid state paint is used for blending in a traditional mode to carry out direct spraying, air pollution and the smell influence is great; on the other hand, the traditional brake drum is assembled with a brake to be used in a fully closed state under the condition of braking operation, high temperature is generated due to braking, heat cannot be dissipated, dual parts are easy to damage, poor braking or no braking phenomenon occurs particularly under the conditions of long downhill and slight loading, so that traffic accidents are caused.
Therefore, in order to solve the above problems, a brake drum with low production cost, no pollution in the production process, high production efficiency, fast heat dissipation and long service life is needed.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a special low temperature brake drum of electric motor car that dispels the heat fast, low in production cost, production efficiency are high, long service life.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the low-temperature brake drum special for the electric vehicle comprises a brake drum, wherein an air inlet hole is formed in the installation end face of the brake drum, a discharge hole is formed in the cylindrical surface of the brake drum, and a hollow hole is formed in the joint of the installation end face of the brake drum and the cylindrical surface of the brake drum.
Therefore, cold air can enter and be discharged in the braking process through the arranged air inlet hole, the discharge hole and the hollow hole, the cooling and heat dissipation functions are achieved, and abrasion powder and dirt generated due to friction in the braking process can be discharged through the discharge hole and the hollow hole, so that the brake drum is kept clean, and the brake is kept in the optimal state.
Furthermore, the air inlets are uniformly distributed according to the circumference. Through the air inlet holes which are uniformly distributed, the speed of cold air entering in the braking process can be ensured, and the cooling and heat dissipation speed is further ensured.
Further, the discharge holes are uniformly distributed on the cylindrical surface of the brake drum. Through the uniformly distributed discharge holes, the speed of discharging hot air in the braking process can be ensured, so that the cooling and heat dissipation speed is ensured, and the discharging speed of abrasion powder and dirt generated by friction in the braking process can be ensured, so that the cleanness of the brake drum is ensured.
Furthermore, the hollow holes are uniformly distributed at the joint of the installation end surface of the brake drum and the cylindrical surface of the brake drum. Through evenly distributed's fretwork hole, can guarantee the exhaust speed of hot air among the braking process to guarantee cooling radiating speed, can also guarantee the exhaust speed of wearing and tearing powder, the dirt that produces because of the friction among the braking process, with this cleanness of assurance brake drum.
In conclusion, the device can cool and dissipate heat more quickly in the braking process, abrasion powder and dirt generated by friction in the braking process can be discharged quickly, the braking process is more stable, the service life of the brake drum and the friction lining is prolonged by fifty percent, and the occurrence probability of traffic accidents is reduced.
Drawings
Fig. 1 is a schematic structural view of a special low-temperature brake drum for an electric vehicle according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In specific implementation, as shown in fig. 1-2, a low-temperature brake drum special for an electric vehicle comprises a brake drum, wherein an air inlet 2 is arranged on an installation end surface 1 of the brake drum, a discharge hole 4 is arranged on a cylindrical surface 3 of the brake drum, and a hollow hole 5 is arranged at a joint of the installation end surface of the brake drum and the cylindrical surface of the brake drum, so that cold air can enter and discharge in a braking process through the arranged air inlet, the discharge hole and the hollow hole to achieve a cooling and heat dissipation function, and the discharge hole and the hollow hole can also discharge abrasion powder and dirt generated by friction in a braking process, so that the brake drum is kept clean, and braking is kept in an optimal state.
In this embodiment, the air inlet holes 2 are uniformly distributed along the circumference. Through the air inlet holes which are uniformly distributed, the speed of cold air entering in the braking process can be ensured, and the cooling and heat dissipation speed is further ensured.
In this embodiment, the discharge holes 4 are evenly distributed on the cylindrical surface 3 of the brake drum. Through the uniformly distributed discharge holes, the speed of discharging hot air in the braking process can be ensured, so that the cooling and heat dissipation speed is ensured, and the discharging speed of abrasion powder and dirt generated by friction in the braking process can be ensured, so that the cleanness of the brake drum is ensured.
In this embodiment, the hollow holes 5 are uniformly distributed at the joint between the installation end surface 1 of the brake drum and the cylindrical surface 3 of the brake drum. Through evenly distributed's fretwork hole, can guarantee the exhaust speed of hot air among the braking process to guarantee cooling radiating speed, can also guarantee the exhaust speed of wearing and tearing powder, the dirt that produces because of the friction among the braking process, with this cleanness of assurance brake drum.
The working principle and the process of the special low-temperature brake drum for the electric vehicle are as follows:
in braking process, the brake drum assembles with the stopper, thereby the brake drum can make the air get into fast and discharge fast and reach good cooling radiating effect at rotatory in-process, simultaneously, because of the discharge that wearing and tearing powder, the dirt that the rotational friction produced can be quick, guaranteed the stability of braking.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (4)
1. The low-temperature brake drum special for the electric vehicle is characterized by comprising a brake drum, wherein an air inlet hole is formed in the installation end face of the brake drum, a discharge hole is formed in the cylindrical surface of the brake drum, and a hollow hole is formed in the joint of the installation end face of the brake drum and the cylindrical surface of the brake drum.
2. The low-temperature brake drum special for electric vehicles as claimed in claim 1, wherein the air intake holes are uniformly distributed in a circumference.
3. The cryogenic brake drum for electric vehicles according to claim 1, wherein the discharge holes are uniformly distributed on the cylindrical surface of the brake drum.
4. The special low-temperature brake drum for the electric vehicle as claimed in claim 1, wherein the hollowed-out holes are uniformly distributed at the junction of the installation end surface of the brake drum and the cylindrical surface of the brake drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164939.9U CN212337971U (en) | 2020-06-22 | 2020-06-22 | Special low temperature brake drum of electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164939.9U CN212337971U (en) | 2020-06-22 | 2020-06-22 | Special low temperature brake drum of electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337971U true CN212337971U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021164939.9U Active CN212337971U (en) | 2020-06-22 | 2020-06-22 | Special low temperature brake drum of electric motor car |
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| CN (1) | CN212337971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706627A (en) * | 2020-06-22 | 2020-09-25 | 重庆市宏向汽配有限公司 | Special low temperature brake drum of electric motor car |
-
2020
- 2020-06-22 CN CN202021164939.9U patent/CN212337971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706627A (en) * | 2020-06-22 | 2020-09-25 | 重庆市宏向汽配有限公司 | Special low temperature brake drum of electric motor car |
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