CN111942342A - Air cooling heat dissipation device and cooling method for drum brake - Google Patents
Air cooling heat dissipation device and cooling method for drum brake Download PDFInfo
- Publication number
- CN111942342A CN111942342A CN202010746370.5A CN202010746370A CN111942342A CN 111942342 A CN111942342 A CN 111942342A CN 202010746370 A CN202010746370 A CN 202010746370A CN 111942342 A CN111942342 A CN 111942342A
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- vehicle
- air
- brake
- drum
- brake drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to an air-cooled heat dissipation device and a cooling method for a drum brake. After the vehicle is started, the vehicle-mounted ECU calculates and judges that the vehicle is in a no-load, half-load or full-load state according to an engine rotating speed signal, a vehicle speed signal and an accelerator pedal position signal in a finished vehicle CAN network; when braking, the vehicle-mounted ECU judges the temperature rise condition of the brake drum according to the judged vehicle load state, the brake pedal position signal and the braking time, and if the brake drum is overheated, the air valve is opened, and compressed air cools the brake drum. Adopt compressed air cooling brake drum, CAN show the cold and hot impact that reduces water spray cooling to the brake drum, prolong its life, the signal in this scheme make full use of whole car CAN network is favorable to whole car cost control.
Description
Technical Field
The invention relates to the field of brake cooling of medium and heavy commercial vehicles, in particular to an air cooling heat dissipation device and a cooling method for a drum brake.
Background
Under the working conditions of continuous long slope descending and frequent emergency braking of medium and heavy commercial vehicles, the heat load of a brake drum is high, so that the heat fading of a brake shoe is easily caused, the braking efficiency is reduced, and safety accidents are caused.
At present, a water tank is usually additionally arranged on a medium-heavy commercial vehicle, the brake drum is cooled by a method of spraying water to the outer surface of the brake drum, the brake drum is easily subjected to thermal shock frequently to cause fatigue damage, the additional water tank increases the quality of the whole vehicle, the fuel economy is reduced, water needs to be frequently injected, and the work of a driver is increased.
Disclosure of Invention
In order to solve the problems, the invention provides an air-cooling heat dissipation device and a cooling method for a drum brake, which can accelerate a local flow field of the brake drum and effectively prevent the brake drum from overheating when the temperature of the brake drum is calculated and judged to be too high according to vehicle information by using compressed air.
The technical scheme adopted by the invention is as follows: the utility model provides a drum brake forced air cooling heat abstractor which characterized in that: the brake drum is characterized by comprising an air storage cylinder and an air nozzle, wherein the air nozzle is fixedly arranged between the brake drum and a rim, the air storage cylinder is connected with the air nozzle through an air pipe, an air valve is arranged on the air pipe, and the air valve is controlled to be switched on and off through a vehicle-mounted ECU.
Preferably, a temperature sensor is arranged between the brake drum and the wheel rim, and the temperature sensor is connected with the vehicle-mounted ECU.
Preferably, the air cylinder is an air cylinder for braking on the original vehicle.
A method of cooling a drum brake, characterized by: after the vehicle is started, the vehicle-mounted ECU calculates and judges that the vehicle is in a no-load, half-load or full-load state according to an engine rotating speed signal, a vehicle speed signal and an accelerator pedal position signal in a finished vehicle CAN network; when braking, the vehicle-mounted ECU judges the temperature rise condition of the brake drum according to the judged vehicle load state, the brake pedal position signal and the braking time, and if the brake drum is overheated, the air valve is opened, and compressed air cools the brake drum.
The beneficial effects obtained by the invention are as follows: adopt compressed air cooling brake drum, CAN show the cold and hot impact that reduces water spray cooling to the brake drum, prolong its life, and saved the time and the expense of adding water in the transportation, improved conveying efficiency, the signal in this scheme make full use of whole car CAN network is favorable to whole car cost control.
Drawings
FIG. 1 is a schematic view of the arrangement of the air nozzles of the present invention at the brake drum;
FIG. 2 is a schematic diagram of the present invention;
reference numerals: 1. a brake drum; 2. a rim; 3. an air nozzle.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in figure 1, the air-cooled heat dissipation device of the drum brake is mainly suitable for medium and heavy commercial vehicles and comprises an air storage cylinder and an air nozzle 3, wherein the air storage cylinder is used for braking on the original vehicle, and additional air storage equipment is not needed; the air nozzle 3 is fixedly arranged between the brake drum 1 and the rim 2, the air storage cylinder is connected with the air nozzle 3 through an air pipe, an air valve is arranged on the air pipe, the air valve is controlled to be on and off through a vehicle-mounted ECU (electronic control unit), the vehicle-mounted ECU is connected into a whole vehicle CAN (controller area network), signals in the whole vehicle CAN are fully utilized, and an engine rotating speed signal, a vehicle speed signal, a transmission gear signal, an accelerator pedal and a brake pedal position signal are read.
In this embodiment, a temperature sensor may be further disposed between the brake drum 1 and the rim 2 for detecting a real-time temperature of the brake drum 1, and the temperature sensor is connected to the vehicle-mounted ECU.
As shown in fig. 2, a drum brake cooling method of the present invention: after the vehicle is started, the vehicle-mounted ECU calculates and judges that the vehicle is in a no-load, half-load or full-load state according to an engine rotating speed signal, a vehicle speed signal and an accelerator pedal position signal in a finished vehicle CAN network; when braking, the vehicle-mounted ECU judges the temperature rise condition of the brake drum according to the judged vehicle load state, the brake pedal position signal and the braking time, and if the brake drum is overheated, the air valve is opened, and compressed air cools the brake drum.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a drum brake forced air cooling heat abstractor which characterized in that: the brake drum is characterized by comprising an air storage cylinder and an air nozzle, wherein the air nozzle is fixedly arranged between the brake drum and a rim, the air storage cylinder is connected with the air nozzle through an air pipe, an air valve is arranged on the air pipe, and the air valve is controlled to be switched on and off through a vehicle-mounted ECU.
2. The drum brake air-cooled heat sink of claim 1, wherein: and a temperature sensor is arranged between the brake drum and the rim and is connected with the vehicle-mounted ECU.
3. The drum brake air-cooled heat sink of claim 1, wherein: the air cylinder is used for braking on the original vehicle.
4. A method of cooling a drum brake, characterized by: after the vehicle is started, the vehicle-mounted ECU calculates and judges that the vehicle is in a no-load, half-load or full-load state according to an engine rotating speed signal, a vehicle speed signal and an accelerator pedal position signal in a finished vehicle CAN network; when braking, the vehicle-mounted ECU judges the temperature rise condition of the brake drum according to the judged vehicle load state, the brake pedal position signal and the braking time, and if the brake drum is overheated, the air valve is opened, and compressed air cools the brake drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746370.5A CN111942342A (en) | 2020-07-29 | 2020-07-29 | Air cooling heat dissipation device and cooling method for drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746370.5A CN111942342A (en) | 2020-07-29 | 2020-07-29 | Air cooling heat dissipation device and cooling method for drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111942342A true CN111942342A (en) | 2020-11-17 |
Family
ID=73339778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010746370.5A Pending CN111942342A (en) | 2020-07-29 | 2020-07-29 | Air cooling heat dissipation device and cooling method for drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111942342A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494576A (en) * | 2014-11-27 | 2015-04-08 | 何伟 | Circulating brake drum cooling system |
| KR20160051336A (en) * | 2014-11-03 | 2016-05-11 | 오일신 | Apparatus for anti-freezing and cooling parts of vehicle |
| CN206968636U (en) * | 2017-06-22 | 2018-02-06 | 中国第一汽车股份有限公司 | A kind of brake drum air cooling equipment |
| CN108916275A (en) * | 2018-07-23 | 2018-11-30 | 武汉理工大学 | It is a kind of to force cooling brake radiating device using compressed air |
| CN109591783A (en) * | 2018-12-04 | 2019-04-09 | 清华大学 | Vehicle brake temperature control device |
| CN111391801A (en) * | 2020-04-06 | 2020-07-10 | 戎华庆 | Trailer axle braking air cooling retarder device |
-
2020
- 2020-07-29 CN CN202010746370.5A patent/CN111942342A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160051336A (en) * | 2014-11-03 | 2016-05-11 | 오일신 | Apparatus for anti-freezing and cooling parts of vehicle |
| CN104494576A (en) * | 2014-11-27 | 2015-04-08 | 何伟 | Circulating brake drum cooling system |
| CN206968636U (en) * | 2017-06-22 | 2018-02-06 | 中国第一汽车股份有限公司 | A kind of brake drum air cooling equipment |
| CN108916275A (en) * | 2018-07-23 | 2018-11-30 | 武汉理工大学 | It is a kind of to force cooling brake radiating device using compressed air |
| CN109591783A (en) * | 2018-12-04 | 2019-04-09 | 清华大学 | Vehicle brake temperature control device |
| CN111391801A (en) * | 2020-04-06 | 2020-07-10 | 戎华庆 | Trailer axle braking air cooling retarder device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201117 |