CN212455274U - Wet-type multi-disc brake for heavy truck - Google Patents
Wet-type multi-disc brake for heavy truck Download PDFInfo
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- CN212455274U CN212455274U CN202021310310.0U CN202021310310U CN212455274U CN 212455274 U CN212455274 U CN 212455274U CN 202021310310 U CN202021310310 U CN 202021310310U CN 212455274 U CN212455274 U CN 212455274U
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- brake
- air chamber
- end cover
- disc
- composite air
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- 239000002131 composite material Substances 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 239000000110 cooling liquid Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000000979 retarding effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A wet-type multi-disc brake for heavy trucks comprises a body, a composite air chamber, a dynamic friction disc, a static friction disc, a brake piston and a rotating disc. An outer end cover is detachably arranged on the outer side of the body. An inner end cover is detachably arranged on the inner side of the body. The inner end cover is fixedly provided with a composite air chamber support frame. The composite air chamber is arranged on the composite air chamber support frame. And a parking brake chamber and a service brake chamber are arranged in the composite air chamber. The composite air chamber support frame is provided with a force transmission gear shaft. The inner side of the inner end cover is provided with a rotating disk. The rotating disc is provided with a gear ring. The inner side of the rotating disk is provided with an inclined surface transmission assembly. And a brake piston is arranged on the other side of the inclined surface transmission component. And a dynamic friction disk and a static friction disk are arranged on the other side of the brake piston. The utility model can meet the requirements of laws and regulations on heavy transport vehicles, and can adjust the braking torque through setting the speed on a long slope to drive at a constant speed; and can effectively solve the vehicle accident caused by the brake.
Description
Technical Field
The utility model belongs to the technical field of vehicle control system, concretely relates to wet-type polydisc stopper for heavily blocking.
Background
The national requirements for the safety and reliability of medium and heavy transport vehicles are higher and higher, related laws and regulations are gradually perfected, the requirements for the safety and reliability of an overall brake system are also increased, and the traditional brake device of the medium and heavy transport vehicles is in a drum type and dry type friction plate form and only achieves the functions of vehicle braking and parking braking. The total land area of China is about 960 ten thousand square kilometers, wherein the landforms of mountains, hills, plateaus and the like occupy about 2/3, and the road occupation of mountainous areas of China is large. In recent years, the infrastructure construction of China is rapidly advanced, and the road conditions in mountainous areas are correspondingly changed. However, the grade of the road in the mountainous area is not high, mainly the grade of the road in the third grade and the fourth grade, the road is rugged and complicated, the mountain is high and the road is steep, and the slope is long and curved. The northern slope of the mountain great ridge in Qinling mountains in Shaanxi province is 210 national roads, the slope length is 33Km, the main slope is 5% -6%, and the maximum slope reaches 8% -9%. The roads in mountainous areas of Jiangxi, Yunyi and Chuan shan are harsher than the above conditions.
When the vehicle runs on a special road surface such as a gentle slope and needs to realize a retarding function, a retarder needs to be installed, or a mode of spraying water to a brake drum for cooling is adopted, so that the equipment cost and the safety risk in use are increased, the vehicle is damaged and the road environment is polluted when the vehicle runs on a town road, and when the road junction is increased in the driving environment and needs frequent braking, the braking system is damaged and fails due to overheating, so that the safety risk is increased.
China begins to popularize other auxiliary braking devices such as a retarder and the like, and establishes corresponding standards. The technical condition GB7258 for vehicle operation safety stipulates that: passenger cars with the car length of more than 9m, trucks with the total mass of more than or equal to 12000kg, special operation vehicles and all dangerous goods transport vehicles are provided with a retarder or other auxiliary braking devices. The performance requirements of the auxiliary braking device are such that the vehicle passes the type ii or type iia tests specified in GB 12676.
The existing wet brake adopts a hydraulic mode, is used on engineering machinery, and has brake performance which can not meet the national requirements of heavy transport vehicle regulations and can not meet the requirements of long and long slope braking.
The existing heavy-duty car brake adopts a pneumatic drum type braking unit, continuous or repeated braking is needed on a highway with height fall or a western highway, a downhill road section of a gentle slope or a road section with complex road conditions, and the brake generates a large amount of heat, so that a tire burst or a vehicle accident of burning fire can be caused in serious conditions.
SUMMERY OF THE UTILITY MODEL
To the problems that exist in the prior art, the present invention is directed to a wet multi-disc brake for heavy trucks.
The utility model adopts the following technical proposal:
a wet-type multi-disc brake for a heavy truck comprises a body, a composite air chamber, a dynamic friction disc, a static friction disc, a brake piston, a rotating disc and an inclined plane transmission assembly.
The outer side of the body is detachably provided with an outer end cover through a bolt. An inner end cover is detachably arranged on the inner side of the body through a bolt.
And a composite air chamber support frame is fixedly arranged on the inner end cover. The composite air chamber is fixedly arranged on the composite air chamber support frame. And a parking brake chamber and a service brake chamber are arranged in the composite air chamber.
And a force transmission gear shaft is rotatably arranged on the composite air chamber supporting frame.
The inner side of the inner end cover is rotatably provided with a rotating disk. And the rotating disk is provided with a gear ring meshed with the force transmission gear shaft.
And the inner side of the rotating disc is fixedly provided with an inclined plane transmission assembly. And the other side of the inclined surface transmission assembly is movably provided with a brake piston. And a dynamic friction disc and a static friction disc are arranged on the other side of the brake piston.
And a return spring is arranged between the brake piston and the body.
And the inner end cover is provided with a cooling liquid outlet and a cooling liquid inlet.
Further, sealing rings are respectively arranged between the outer end cover and the body, between the inner end cover and the body, and between the brake piston and the body.
Furthermore, a cooling liquid outlet is arranged on the body.
Further, a fixing ring is arranged on the inner side of the outer end cover.
Further, the cooling liquid inlet is connected with a hydraulic pump of the vehicle through a pipeline.
The utility model has the advantages that: the wet-type multi-disc brake for the heavy truck adopts air pressure brake and a torque increasing structure, meets the requirements of laws and regulations on heavy transport vehicles, can adjust the braking torque at a set speed on a long slope and runs at a constant speed. The product adopts a brand-new wet brake design of air-break braking and air-pressure-filling brake release, can adjust the braking torque through a set speed on a long slope, runs at a constant speed, and replaces the traditional automobile brake. The wet brake can provide heat conducting oil for the heat generated by the brake to be conducted to the brake external heat dissipation unit, and vehicle accidents caused by the brake can be effectively solved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the overall structure of the present invention.
Reference numerals: 1-a composite air chamber, 2-a composite air chamber support frame, 3-a sealing ring I, 4-a dynamic friction disk, 5-a static friction disk, 6-an outer end cover, 7-a fixed ring, 8-a sealing ring II, 9-a return spring, 10-a brake piston, 11-a cooling liquid outlet, 12-a rotating disk, 13-a cooling liquid inlet, 14-a force transmission gear shaft, 15-a sealing ring III, 16-a bevel transmission component, 17-a cooling liquid outlet, 18-a body and 19-an inner end cover.
Detailed Description
For the convenience of understanding, the technical solution of the present invention is further described in detail below by way of embodiments with reference to the accompanying drawings:
as shown in fig. 1 and 2, the wet-type multi-disc brake for the heavy truck comprises a composite air chamber 1, a composite air chamber support frame 2, a dynamic friction disc 4, a static friction disc 5, an outer end cover 6, a fixed ring 7, a return spring 9, a brake piston 10, a rotating disc 12, a transmission gear shaft 14, a bevel transmission assembly 16, a body 18 and an inner end cover 19.
The outer end cover 6 is detachably provided on the outer side of the body 18 by bolts. And a second sealing ring 8 is arranged between the outer end cover 6 and the body 18.
The inner end cap 19 is detachably disposed inside the body 18 by bolts. And a third sealing ring 15 is arranged between the inner end cover 19 and the body 18.
The inner side of the outer end cover 6 is provided with a fixing ring 7.
The inner end cover 19 is fixedly provided with a composite air chamber support frame 2. A force transmission gear shaft 14 is rotatably arranged on the composite air chamber support frame 2.
The composite air chamber support frame 2 is fixedly provided with a composite air chamber 1.
The composite air chamber 1 is internally provided with a parking brake chamber and a service brake chamber.
The inner side of the inner end cap 19 is rotatably provided with a rotary disk 12. The rotary disk 12 is provided with a ring gear engaged with the transmission gear shaft 14.
A bevel gear assembly 16 is fixedly disposed on the inner side of the rotating disc 12.
The other side of the bevel gear assembly 16 is movably provided with a brake piston 10.
And a dynamic friction disk 4 and a static friction disk 5 are arranged on the other side of the brake piston 10, and the dynamic friction disk 4 and the static friction disk 5 are matched to realize braking action.
A first sealing ring 3 is arranged between the brake piston 10 and the body 18.
A return spring 9 is provided between the brake piston 10 and the body 18.
The inner end cap 19 is provided with a coolant outlet 11 and a coolant inlet 13. The coolant inlet 13 is connected to a hydraulic pump of the vehicle through a pipe.
The body 18 is provided with a coolant discharge port 17.
The working principle is as follows:
when the vehicle needs service braking, braking high-pressure gas enters a parking braking air chamber in the composite air chamber 1, and a parking braking spring is compressed to release parking braking; high-pressure braking gas simultaneously enters a service braking air chamber in the composite air chamber 1 to push the force transmission gear shaft 14 for transmission, so that the rotating disc 12 and the inclined plane transmission assembly 16 are driven to rotate together, the inclined plane transmission assembly 16 pushes the braking piston 10 to move leftwards, the dynamic friction plate 4 is combined with the static friction plate 5 to generate service braking, a servo electromagnetic valve is controlled according to ECU control, and at the moment, the dynamic friction plate 4 is meshed with the static friction plate 5 to generate friction force to control braking torque.
When the speed slowing function is required, the purpose of controlling the pressure of braking high-pressure gas and further controlling the speed through the friction force of the dynamic friction plate 4 and the static friction plate 5 is provided; meanwhile, the hydraulic pump works, and heat generated by retarding is taken out of the brake through the cooling liquid outlet 11 and the cooling liquid inlet 13, so that normal work of the friction plate is guaranteed.
When parking braking is needed, braking high-pressure gas is exhausted from a parking braking air chamber in the composite air chamber 1, a spring of the parking braking air chamber generates thrust to push the force transmission gear shaft 14 for transmission, the rotating disc 12 and the inclined plane transmission assembly 16 are driven to rotate together, the inclined plane transmission assembly 16 pushes the braking piston 10 to move leftwards, and the dynamic friction plate 4 is combined with the static friction plate 5 to generate parking braking.
When the vehicle normally runs, high-pressure braking gas is discharged from the parking braking gas chamber of the composite gas chamber 1 to release parking braking, the return spring 9 pushes the braking piston 10 to return, the dynamic friction disc 4 and the static friction disc 5 are separated to release braking, and meanwhile, the high-pressure braking gas is discharged from the service braking of the composite gas chamber 1 to release service braking.
Claims (5)
1. A wet-type multi-disc brake for a heavy truck comprises a body, a composite air chamber, a dynamic friction disc, a static friction disc, a brake piston, a rotating disc and an inclined plane transmission assembly;
the outer side of the body is detachably provided with an outer end cover through a bolt, and the inner side of the body is detachably provided with an inner end cover through a bolt;
a composite air chamber supporting frame is fixedly arranged on the inner end cover, the composite air chamber is fixedly arranged on the composite air chamber supporting frame, and a parking brake air chamber and a service brake air chamber are arranged in the composite air chamber;
a force transmission gear shaft is rotatably arranged on the composite air chamber supporting frame,
the inner side of the inner end cover is rotatably provided with a rotating disc, and a gear ring meshed with the force transmission gear shaft is arranged on the rotating disc;
an inclined surface transmission assembly is fixedly arranged on the inner side of the rotating disc, a brake piston is movably arranged on the other side of the inclined surface transmission assembly, and a dynamic friction disc and a static friction disc are arranged on the other side of the brake piston;
a return spring is arranged between the brake piston and the body,
and the inner end cover is provided with a cooling liquid outlet and a cooling liquid inlet.
2. The wet multi-disc brake for heavy trucks of claim 1, characterized in that: and sealing rings are respectively arranged between the outer end cover and the body, between the inner end cover and the body, and between the brake piston and the body.
3. The wet multi-disc brake for heavy trucks of claim 2, characterized in that: the body is provided with a cooling liquid outlet.
4. The wet multi-disc brake for heavy trucks of claim 3, characterized in that: and a fixing ring is arranged on the inner side of the outer end cover.
5. The wet multi-disc brake for heavy trucks of claim 4, characterized in that: the coolant inlet is connected with a hydraulic pump of the vehicle through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310310.0U CN212455274U (en) | 2020-07-07 | 2020-07-07 | Wet-type multi-disc brake for heavy truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310310.0U CN212455274U (en) | 2020-07-07 | 2020-07-07 | Wet-type multi-disc brake for heavy truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455274U true CN212455274U (en) | 2021-02-02 |
Family
ID=74484205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021310310.0U Active CN212455274U (en) | 2020-07-07 | 2020-07-07 | Wet-type multi-disc brake for heavy truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431852A (en) * | 2021-07-23 | 2021-09-24 | 合肥工业大学 | High-efficiency self-locking electronic mechanical brake |
-
2020
- 2020-07-07 CN CN202021310310.0U patent/CN212455274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431852A (en) * | 2021-07-23 | 2021-09-24 | 合肥工业大学 | High-efficiency self-locking electronic mechanical brake |
| CN113431852B (en) * | 2021-07-23 | 2024-04-12 | 合肥工业大学 | High-efficiency self-locking electromechanical brake |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240424 Address after: 266000 No.1 Loushan Road, Licang District, Qingdao City, Shandong Province Patentee after: QINGDAO AUTOMOTIVE RESEARCH INSTITUTE, JILIN University Country or region after: China Patentee after: Qingdao jiqingyuan Automobile Technology Development Co.,Ltd. Patentee after: Jilin University Address before: 266000 No.1 Loushan Road, Licang District, Qingdao City, Shandong Province Patentee before: QINGDAO AUTOMOTIVE RESEARCH INSTITUTE, JILIN University Country or region before: China Patentee before: Qingdao jiqingyuan Automobile Technology Development Co.,Ltd. |