CN203035814U - Normally closed wet-type parking brake - Google Patents
Normally closed wet-type parking brake Download PDFInfo
- Publication number
- CN203035814U CN203035814U CN 201320008930 CN201320008930U CN203035814U CN 203035814 U CN203035814 U CN 203035814U CN 201320008930 CN201320008930 CN 201320008930 CN 201320008930 U CN201320008930 U CN 201320008930U CN 203035814 U CN203035814 U CN 203035814U
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- transmission shaft
- piston
- end cap
- face
- static
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- Expired - Fee Related
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Abstract
The utility model provides a normally closed wet-type parking brake and relates to the field of vehicle brake manufacturing. A left end cover and a right end cover are installed on the front portion and the rear portion of a transmission shaft respectively and are connected to two ends of a static casing respectively, kinetic friction piece inner teeth are meshed with the transmission shaft, static friction piece outer teeth are meshed with the static casing, the end face of a piston small head is contacted with the static casing, a plurality of inner holes for installing a spring assembly are evenly processed on the outer end face of a large head, an oil charge cavity and an oil inlet are arranged between the end face of the left side of the piston large head and the static casing, and a seal ring is arranged between a piston and the static casing. The end face of the left end cover abutting against a static friction piece and end faces of both the static casing and the piston small head abutting against a kinetic friction piece are provided with circulation oil flowing grooves for oil circulation in a sealed cavity. The friction pieces perform clutch work in the sealed oil and are free of static, spark and discharge, and the temperature of working solution of the brake is controllable. The normally closed wet-type parking brake is compact in structure, light in weight, simple to control, stable in braking force, free of pollution and discharge, low in working temperature and high in safety and reliability.
Description
Technical field
The utility model relates to automobile, mining car manufacturing technology field, specifically is a kind of normally closed wet type Parking Brake.
Background technique
At present, the driving of automobile, mining car and parking braking are the integral type break, wherein have the outside accumulator of employing independently to control and realize Parking, also have to adopt inner double-piston split control to realize Parking, but all belong to the wheel hub braking model.This class mode of braking is when hydraulic system or single break break down, and potential safety hazard appears in the reliability regular meeting of car body Parking.
Summary of the invention
Existing because the system failure or hub brake fault cause the problem that the vehicle parking braking was lost efficacy for solving, goal of the invention of the present utility model is to provide a kind of normally closed wet type Parking Brake, to realize improving the purpose of vehicle parking braking reliability.
For achieving the above object, the Front-end Design of the utility model transmission shaft is for connecting the internal spline of output shaft of gear-box, the rear end is for being used for connecting the flange of vehicle bridge transmission shaft, the front and rear portions of transmission shaft is equipped with left end cap and right end cap respectively, and left end cap, right end cap are connected the two ends of quiet housing respectively with bolt; In the sealed cavity that left end cap, quiet housing and transmission shaft form, the internal tooth of movable friction plate is meshed with transmission shaft, the external tooth of static friction sheet and the engagement of quiet housing; The little end surface of the piston in quiet housing, right end cap and the formed sealed cavity of transmission shaft contacts with movable friction plate, the major part exterior edge face evenly is processed with a plurality of endoporus for the mounting spring assembly, have oil-filled shape chamber and filler opening between piston major part left end face and the quiet housing, be provided with seal ring between piston and the quiet housing, left end cap all has for the mobile groove of the recycle oil of enclosed shape chamber inner fluid circulation by the movable friction plate end face by static friction sheet end face and quiet housing, piston microcephaly.
The utility model is realized parking braking by direct brake and transmission shaft, reaching driving separates with control system with the former device of parking braking, this Parking Brake is again second break of service brake when losing efficacy simultaneously, has improved effectively that vehicle travels and the safety reliability of Parking.
The utility model compared with prior art, directly brake gearbox and interaxle transmission shaft, brake bush clutch work in the fluid of sealing, no static, no-spark, nothing discharging, in this shape chamber there be into and out of oily interface design simultaneously, insert the circulation cold oil, circulate the heat that friction plate and body produce when taking away braking by fluid, realized the controllable temperature of break working solution.Compact structure, in light weight, control is simple, and braking force is stable, when efficiently solving vehicle control system and other brake troubles, the car brakeing Problem of Failure.Simultaneously parking braking system separates with service brake, has multiple security function, has improved vehicle travel and berth Security and reliability, also realized simultaneously pollution-free, do not have discharge, operating temperature is low.Can be widely used in general-utility car, wheeled engineering truck, farm machinery and vehicle, the special adaptation in explosion-proof, fire prevention, high-risk, environmental pollution, the demanding engineering vehicle of safety condition, heavy goods vehicles or big machinery field, used.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the front end of transmission shaft 7 is for being used for connecting the internal spline of output shaft of gear-box, the rear end is for being used for connecting the flange of vehicle bridge transmission shaft, the front and rear portions of transmission shaft 7 is equipped with left end cap 1 and right end cap 6 respectively, left end cap 1, right end cap 6 tie the two ends that are connected on quiet housing 3 with Guo respectively, and left end cap 1 is connected with gear-box case with bolt simultaneously; In the sealed cavity that left end cap 1, quiet housing 3 and transmission shaft 7 form, the internal tooth of movable friction plate 2 is meshed with transmission shaft 7, the external tooth of static friction sheet 8 and 3 engagements of quiet housing; The little end surface of the piston 4 in quiet housing 3, right end cap 6 and transmission shaft 7 formed sealed cavities contacts with movable friction plate 2, the major part exterior edge face evenly is processed with a plurality of endoporus for mounting spring assembly 5, spring assembly 5 is according to the decrement of design, press-fited in the hole of the big end surface of piston 4 by right end cap 6, reach break and have inherent constant braking moment of torsion all the time; Have oil-filled shape chamber between piston 4 major part left end face and the quiet housing 3, this oil pocket externally is provided with filler opening, inserts hydraulic oil and can promote piston 4 compression spring assembly 5 that moves to right and realize brake offs.Be provided with seal ring between piston 4 and the quiet housing 3, left end cap 1 all has for the mobile groove of the recycle oil of enclosed shape chamber inner fluid circulation by movable friction plate 2 end faces by static friction sheet 8 end faces and quiet housing 3, piston 4 microcephalies.And be provided with the shape chamber into and out of hydraulic fluid port, and friction plate produced when access recycle oil can be taken away emergency braking heat and dirt, the operating life of raising friction plate, it is controlled to reach the break operating temperature.
Working principle of the present utility model: during normality, be pressed against on the movable friction plate 2 with the fixed pressure that weighs at the elastic force effect lower piston 4 little end surfaces of spring assembly 5, friction plate is by pressing, arrester close.During vehicle launch, unclamp parking brake handle grip and make hydraulic oil inject in the oil pocket of piston 4 and 3 of quiet housings, piston 4 moves to right under hydraulic oil promotes, compression spring assembly 5, and friction plate is relaxed, and transmission shaft 7 and movable friction plate 2 rotate with output shaft of gear-box.When Parking or emergency braking, the pulling parking brake handle grip, the oil pocket that piston 4 and quiet housing are 3 and oil circuit conducting, under the effect of spring assembly 5, the piston 4 pressing movable friction plate 2 that moves to left, arrester close.
Claims (1)
1. normally closed wet type Parking Brake, it is characterized in that: the front end of transmission shaft (7) is for being used for connecting the internal spline of output shaft of gear-box, the rear end is for being used for connecting the flange of vehicle bridge transmission shaft, the front and rear portions of transmission shaft (7) is equipped with left end cap (1) and right end cap (6) respectively, and left end cap (1), right end cap (6) are connected the two ends of quiet housing (3) respectively with bolt; In the sealed cavity that left end cap (1), quiet housing (3) and transmission shaft (7) form, the internal tooth of movable friction plate (2) is meshed with transmission shaft (7), the external tooth of static friction sheet (8) and quiet housing (3) engagement; In quiet housing (3), the little end surface of the piston (4) in right end cap (6) and the formed sealed cavity of transmission shaft (7) contacts with movable friction plate (2), the major part exterior edge face evenly is processed with a plurality of endoporus for mounting spring assembly (5), have oil-filled shape chamber and filler opening between piston (4) major part left end face and the quiet housing (3), be provided with seal ring between piston (4) and the quiet housing (3), left end cap (1) is by static friction sheet (8) end face and quiet housing (3), piston (4) microcephaly all has for the mobile groove of the recycle oil of enclosed shape chamber inner fluid circulation by movable friction plate (2) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008930 CN203035814U (en) | 2013-01-09 | 2013-01-09 | Normally closed wet-type parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320008930 CN203035814U (en) | 2013-01-09 | 2013-01-09 | Normally closed wet-type parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035814U true CN203035814U (en) | 2013-07-03 |
Family
ID=48687943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320008930 Expired - Fee Related CN203035814U (en) | 2013-01-09 | 2013-01-09 | Normally closed wet-type parking brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035814U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967971A (en) * | 2014-02-25 | 2014-08-06 | 湖北航天技术研究院特种车辆技术中心 | Wet brake |
| CN104019158A (en) * | 2014-05-22 | 2014-09-03 | 厦门厦金机械股份有限公司 | Normally closed type brake for hydraulic wet-type drive axle |
| CN105508453A (en) * | 2016-02-15 | 2016-04-20 | 福建奉田信新能源科技有限公司 | Normally-closed clutch device special for new energy automobile |
| CN106365011A (en) * | 2015-07-22 | 2017-02-01 | 上海市建筑科学研究院科技发展有限公司 | Speed limit protection device with invariable braking force |
| CN107191513A (en) * | 2017-04-01 | 2017-09-22 | 重庆电子工程职业学院 | New-energy automobile gear box hydraulic formula brake apparatus |
| CN107939864A (en) * | 2017-12-26 | 2018-04-20 | 徐州科源液压股份有限公司 | Pneumatic parking brake |
| CN108263365A (en) * | 2017-01-24 | 2018-07-10 | 山东理工大学 | A kind of brake of controllable brake force size |
| CN109505894A (en) * | 2018-11-27 | 2019-03-22 | 襄阳全系康动力机械有限责任公司 | A kind of explosion-proof brake structure of wet type |
| CN109849417A (en) * | 2019-03-06 | 2019-06-07 | 浙江易锻精密机械有限公司 | A kind of circulating cooling brake |
-
2013
- 2013-01-09 CN CN 201320008930 patent/CN203035814U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967971A (en) * | 2014-02-25 | 2014-08-06 | 湖北航天技术研究院特种车辆技术中心 | Wet brake |
| CN103967971B (en) * | 2014-02-25 | 2016-08-17 | 湖北航天技术研究院特种车辆技术中心 | A kind of wet brake |
| CN104019158A (en) * | 2014-05-22 | 2014-09-03 | 厦门厦金机械股份有限公司 | Normally closed type brake for hydraulic wet-type drive axle |
| CN106365011B (en) * | 2015-07-22 | 2019-06-18 | 上海市建筑科学研究院科技发展有限公司 | The constant speed-limiting protective device of brake force |
| CN106365011A (en) * | 2015-07-22 | 2017-02-01 | 上海市建筑科学研究院科技发展有限公司 | Speed limit protection device with invariable braking force |
| CN105508453B (en) * | 2016-02-15 | 2018-03-09 | 福建奉田信新能源科技有限公司 | A kind of special normal-close clutch device device of new energy vehicle |
| CN105508453A (en) * | 2016-02-15 | 2016-04-20 | 福建奉田信新能源科技有限公司 | Normally-closed clutch device special for new energy automobile |
| CN108263365A (en) * | 2017-01-24 | 2018-07-10 | 山东理工大学 | A kind of brake of controllable brake force size |
| CN108263365B (en) * | 2017-01-24 | 2020-09-25 | 山东理工大学 | Brake capable of controlling braking force |
| CN107191513A (en) * | 2017-04-01 | 2017-09-22 | 重庆电子工程职业学院 | New-energy automobile gear box hydraulic formula brake apparatus |
| CN107939864A (en) * | 2017-12-26 | 2018-04-20 | 徐州科源液压股份有限公司 | Pneumatic parking brake |
| CN107939864B (en) * | 2017-12-26 | 2024-01-30 | 徐州科源液压股份有限公司 | Pneumatic parking brake |
| CN109505894A (en) * | 2018-11-27 | 2019-03-22 | 襄阳全系康动力机械有限责任公司 | A kind of explosion-proof brake structure of wet type |
| CN109849417A (en) * | 2019-03-06 | 2019-06-07 | 浙江易锻精密机械有限公司 | A kind of circulating cooling brake |
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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: 20130703 Termination date: 20210109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |