CN101761596B - Improved double-diaphragm spring brake chamber - Google Patents
Improved double-diaphragm spring brake chamber Download PDFInfo
- Publication number
- CN101761596B CN101761596B CN 201010001106 CN201010001106A CN101761596B CN 101761596 B CN101761596 B CN 101761596B CN 201010001106 CN201010001106 CN 201010001106 CN 201010001106 A CN201010001106 A CN 201010001106A CN 101761596 B CN101761596 B CN 101761596B
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- brake chamber
- middle shell
- diaphragm spring
- mandrel
- spring brake
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Abstract
The invention relates to a brake chamber, in particular to an improved double-diaphragm spring brake chamber comprising a core shaft, a self-lubricating sealing ring, a middle shell and a guiding part, wherein the guiding part and the self-lubricating sealing ring are arranged between the core shaft and the middle shell so that the core shaft can not directly contact the middle shell. Compared with the prior art, the improved double-diaphragm spring brake chamber adopts the guiding part and the self-lubricating sealing ring so that the consumption of aluminum for making the middle shell is reduced, the overall manufacturing cost of the improved double-diaphragm spring brake chamber is lowered, the wear resistance of both the core shaft and the middle shell is improved, the service life of the self-lubricating sealing ring is prolonged, and the safety of an automobile braking system is obviously improved.
Description
Technical field
The present invention relates to a kind of brake chamber, particularly a kind of modified model double-diaphragm spring brake chamber is particularly useful for motor vehicle braking system.
Background technique
Number of patent application a kind of double-diaphragm spring brake chamber that has been 200520106510 Chinese disclosure of the Invention.The Parking chamber of this brake chamber with the driving chamber be two independently working cavities, and constitute said Parking chamber with the driving chamber sealing configuration mainly comprise mandrel, O-ring seals, middle shell.Therefore, said mandrel and middle shell are realized sealing through the decrement of O-ring seals; When work in the Parking chamber, the endoporus that relies on the middle shell that moves axially of mandrel is realized guiding.
Yet because the axial motion of mandrel directly relies on the endoporus guiding of middle shell, in order to improve guiding accurately, interior hole length needs longer, and the mandrel radial dimension is bigger, has increased the material consumption of middle shell; Secondly; Since the mandrel of steel directly with the middle shell endoporus mutual friction mutually of aluminum; In kinetic friction, can produce a large amount of metal fillingss, cut can appear in the outer fenestra of mandrel, and this is fatal damage to the O-ring seals on the middle shell; Can cause O-ring seals to lose efficacy in advance, influence the vehicle driving braking safety; Once more, monolateral or eccentric wear can appear in the mandrel measure of for want of effectively leading; In addition, lubricate, O-ring seals and mandrel dry friction can occur, cause O-ring seals distortion, scaling because O-ring seals lacks, and then the assembly air leakage failure.
Summary of the invention
The object of the present invention is to provide a kind of modified model double-diaphragm spring brake chamber; Its middle shell endoporus that has overcome existing double-diaphragm spring brake chamber is long, mandrel and middle shell direct friction, middle shell lead problems such as deficiency and O-ring seals lack of lubrication to mandrel; Through employing guide collar and selflubricating formula seal ring, thus the manufacture cost of reduction brake chamber assembly; Reduce the wear extent of middle shell and mandrel; Improve the working life of seal ring.
The object of the invention is realized through following technological scheme: a kind of modified model double-diaphragm spring brake chamber is provided, and it comprises mandrel, selflubricating formula seal ring, middle shell and targeting part.Said targeting part and selflubricating formula seal ring place between mandrel and the middle shell, make mandrel directly not contact middle shell.
Preferably, said targeting part comprises the guide collar that at least one wear-resistant plastic is processed, so that improve the wear resistance of guide collar.In most preferred embodiment of the present invention, said targeting part comprises the guide collar that two wear-resistant plastics are processed, its advantage has shortened the length of middle shell endoporus simultaneously for can improve guiding accuracy, reduced make middle shell use the aluminium amount.
Preferably, said selflubricating formula seal ring comprises the fixing ring of at least one band oil storage tank, helps like this guaranteeing that seal ring obtains sufficient lubrication, has promoted the working life of seal ring, has guaranteed the sealing of Parking chamber with the driving chamber.In most preferred embodiment of the present invention, said selflubricating formula seal ring comprises the fixing ring of a band oil storage tank, so that save the space.
Modified model double-diaphragm spring brake chamber of the present invention compared with prior art adopted targeting part and selflubricating formula seal ring, reduced make middle shell use the aluminium amount, brake chamber assembly manufacture cost is reduced; The wear resistance of mandrel and middle shell increases; Improve the working life of seal ring; The Security of motor vehicle braking system significantly improves.
Description of drawings
In order to make the present invention be convenient to understand, combine accompanying drawing to describe most preferred embodiment of the present invention now.
Fig. 1 is the partial sectional view of the most preferred embodiment of modified model double-diaphragm spring brake chamber of the present invention.For brevity, the front case of said brake chamber part illustrates.
Fig. 2 is the partial enlarged drawing of modified model double-diaphragm spring brake chamber of the present invention.
Reference character: 1. mandrel, 2. fixing ring, 3. middle shell, 4. guide collar, 5. oil storage tank, 6. Parking chamber, 7. driving chamber
Embodiment
Accompanying drawing shows the most preferred embodiment of modified model double-diaphragm spring brake chamber of the present invention.Below in conjunction with accompanying drawing the present invention is done detailed description.The word in the description orientation that is adopted among this paper " on ", D score, " left side ", " right side " etc. all be for the convenience explained based on the orientation shown in the drawing in the accompanying drawing, these orientation maybe be because the disposing way of device and different in actual device.
As shown in the figure, two guide collar 4 and the fixing ring 2 of said double-diaphragm spring brake chamber place between mandrel 1 and the middle shell 3, make mandrel 1 directly not contact middle shell 3.Fixing ring 2 is built-in with the oil storage tank 5 that can store consistent lubricant.
When the work of Parking chamber 6, because the differential pressure action of diaphragm spring both sides, mandrel 1 produces moving axially from left to right through two guide collar 4, and then drives the elements action (not shown) in the driving chamber 7.In the moving process of mandrel 1, the lubricating grease in the oil storage tank 5 has played lubrication to the friction between mandrel 1 and the fixing ring 2.
More than combine the preferred embodiments of the present invention to describe in detail; But this is not to be limitation of the present invention; Every foundation technical spirit of the present invention is to any simple modification that above embodiment did, and equivalent variations and modification all still belong to the scope of technological scheme of the present invention.
Claims (4)
1. modified model double-diaphragm spring brake chamber; It comprises mandrel, selflubricating formula seal ring, middle shell, it is characterized in that said brake chamber also comprises targeting part; Said targeting part comprises at least two guide collar; Said targeting part and selflubricating formula seal ring place between mandrel and the middle shell, make mandrel directly not contact middle shell.
2. brake chamber as claimed in claim 1 is characterized in that: said targeting part adopts wear-resistant plastic to process.
3. brake chamber as claimed in claim 1 is characterized in that: said selflubricating formula seal ring comprises the fixing ring of at least one band oil storage tank.
4. brake chamber as claimed in claim 2 is characterized in that: said selflubricating formula seal ring comprises the fixing ring of at least one band oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010001106 CN101761596B (en) | 2010-01-12 | 2010-01-12 | Improved double-diaphragm spring brake chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010001106 CN101761596B (en) | 2010-01-12 | 2010-01-12 | Improved double-diaphragm spring brake chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101761596A CN101761596A (en) | 2010-06-30 |
| CN101761596B true CN101761596B (en) | 2012-07-25 |
Family
ID=42492939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010001106 Active CN101761596B (en) | 2010-01-12 | 2010-01-12 | Improved double-diaphragm spring brake chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101761596B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819230A (en) * | 2015-05-10 | 2015-08-05 | 徐伯琴 | Spring brake air chamber |
| CN104912975A (en) * | 2015-06-17 | 2015-09-16 | 王迪蔚 | Sealing structure and spring brake chamber |
| CN105202079A (en) * | 2015-09-25 | 2015-12-30 | 安徽中启汽车科技有限公司 | Spring brake air chamber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2651099Y (en) * | 2003-09-22 | 2004-10-27 | 瑞立集团有限公司 | Riveted double membrane spring brake cylinder |
| CN2797755Y (en) * | 2005-05-31 | 2006-07-19 | 嘉兴市嘉力达汽车部件有限公司 | Spring braking chamber specially for disc type brake |
| CN2905574Y (en) * | 2005-12-01 | 2007-05-30 | 陆奇文 | Diaphragm type gas-liquid jointed brake device |
| CN2918875Y (en) * | 2006-06-12 | 2007-07-04 | 万安集团有限公司 | Breathing apparatus in spring brake cylinder |
| CN201129383Y (en) * | 2007-01-25 | 2008-10-08 | 青岛天顺机电有限公司 | Safe type spring braking chamber |
| CN201610131U (en) * | 2010-01-12 | 2010-10-20 | 瑞立集团瑞安汽车零部件有限公司 | Improved double-diaphragm spring brake air chamber |
-
2010
- 2010-01-12 CN CN 201010001106 patent/CN101761596B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2651099Y (en) * | 2003-09-22 | 2004-10-27 | 瑞立集团有限公司 | Riveted double membrane spring brake cylinder |
| CN2797755Y (en) * | 2005-05-31 | 2006-07-19 | 嘉兴市嘉力达汽车部件有限公司 | Spring braking chamber specially for disc type brake |
| CN2905574Y (en) * | 2005-12-01 | 2007-05-30 | 陆奇文 | Diaphragm type gas-liquid jointed brake device |
| CN2918875Y (en) * | 2006-06-12 | 2007-07-04 | 万安集团有限公司 | Breathing apparatus in spring brake cylinder |
| CN201129383Y (en) * | 2007-01-25 | 2008-10-08 | 青岛天顺机电有限公司 | Safe type spring braking chamber |
| CN201610131U (en) * | 2010-01-12 | 2010-10-20 | 瑞立集团瑞安汽车零部件有限公司 | Improved double-diaphragm spring brake air chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101761596A (en) | 2010-06-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Improved double diaphragm spring brake chamber Effective date of registration: 20201126 Granted publication date: 20120725 Pledgee: Wenzhou Ruian sub branch of China CITIC Bank Co., Ltd Pledgor: Ruili Group Ruian Auto Parts Co.,Ltd. Registration number: Y2020330000954 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |