CN105202079A - Spring brake air chamber - Google Patents
Spring brake air chamber Download PDFInfo
- Publication number
- CN105202079A CN105202079A CN201510618959.6A CN201510618959A CN105202079A CN 105202079 A CN105202079 A CN 105202079A CN 201510618959 A CN201510618959 A CN 201510618959A CN 105202079 A CN105202079 A CN 105202079A
- Authority
- CN
- China
- Prior art keywords
- air chamber
- push rod
- chamber
- seal ring
- coupling sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Sealing Devices (AREA)
Abstract
The invention discloses a spring brake air chamber which comprises a front air chamber, a back air chamber, a connecting sleeve, seal ring grooves, seal rings, an oil storage groove and a push rod. The front air chamber and the back air chamber are fixedly connected together, the connecting sleeve is fixedly arranged between the front air chamber and the back air chamber, one seal ring groove is formed in the front end and back end of the inner wall of the connecting sleeve respectively, one seal ring is installed in each seal ring groove, one oil storage groove is formed in the inner wall of the connecting sleeve, the position of the oil storage groove is located between the front and back seal ring grooves, one push rod is arranged in the connecting sleeve, attaches to the two seal rings and is in sliding connection with the seal rings. The spring brake air chamber has the advantages of being good in sealing effect, long in service life and the like.
Description
Technical field
The present invention relates to a kind of spring brake chamber, be applied to vehicle air braking technology field.
Background technique
Greatly
intype lorry and passenger stock all adopt air-pressure brake, and except the front-wheel of main car adopts single chamber brake chamber, all the other wheels all adopt two-chamber spring brake chamber.
Manufacturer is when assembling spring brake chamber, lubricating grease can be scribbled between two rubber seal, but because the structure interval between two rubber seal is too little, the lubricating grease retained between two seals circle is few, along with the prolongation of spring brake chamber service time, lubricating grease has consumed gradually, then the wearing and tearing of seal ring and intermediate push rod cause the sealability of seal ring to decline, gas in rear gas chamber is then scurried into front air chamber and is revealed, under extreme case, rear gas chamber's internal air pressure is not enough to promote the energy-storaging spring outside rear gas chamber, wheel inside brake shoe plate contacts with brake drum, to the vehicle in traveling, long contact friction causes break drum temperature to raise, highway occurs often vehicle is in normal traveling, the wheel vehicle fire that causes on fire is burnt, cause the accident of the heavy losses of property, be exactly that this reason causes, particularly semitrailer.
Summary of the invention
For solving the defect of prior art, the invention discloses a kind of spring brake chamber of easy to use, long service life.
The invention discloses a kind of spring brake chamber, comprise: front air chamber, rear gas chamber, coupling sleeve, o-ring groove, seal ring, store oily groove, push rod, described front air chamber and rear gas chamber are fixed together, a coupling sleeve is set firmly between described front air chamber and rear gas chamber, and the inside of coupling sleeve is all communicated with the inside of front air chamber and the inside of rear gas chamber, on the inwall of described coupling sleeve, rear and front end has an o-ring groove, and a seal ring is all installed in each o-ring groove, the inwall of described coupling sleeve has one and store oily groove, and the position storing oily groove is between former and later two o-ring grooves, a push rod is set in described coupling sleeve, the front end of described push rod reaches in front air chamber, the rear end of described push rod reaches in rear gas chamber, and push rod and two seal rings are all fitted, and be slidably connected between push rod and seal ring.
Owing to adopting technique scheme, the present invention has following advantageous benefits:
1, good sealing effect;
2, long service life.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of a kind of spring brake chamber of the present invention.
Wherein: air chamber before 1-; 2-rear gas chamber; 3-coupling sleeve; 4-o-ring groove; 5-seal ring; 6-stores oily groove; 7-push rod.
Embodiment
As shown in Figure 1, the invention discloses a kind of spring brake chamber, comprise: front air chamber 1, rear gas chamber 2, coupling sleeve 3, o-ring groove 4, seal ring 5, store oily groove 6, push rod 7, described front air chamber 1 is fixed together with rear gas chamber 2, a coupling sleeve 3 is set firmly between described front air chamber 1 and rear gas chamber 2, and the inside of coupling sleeve 3 is all communicated with the inside of front air chamber 1 and the inside of rear gas chamber 2, on the inwall of described coupling sleeve 3, rear and front end has an o-ring groove 4, and in each o-ring groove 4, a seal ring 5 is all installed, the inwall of described coupling sleeve 3 has one and store oily groove 6, and the position storing oily groove 6 is between former and later two o-ring grooves 4, a push rod 7 is set in described coupling sleeve 3, the front end of described push rod 7 reaches in front air chamber 1, the rear end of described push rod 7 reaches in rear gas chamber 2, and push rod 7 and two seal rings 5 are all fitted, and be slidably connected between push rod 7 and seal ring 5.
The present invention implements like this: store oily groove 6 together by opening between former and later two o-ring grooves 4, like this, lubricating grease joins and stores in oily groove 6 by people, former and later two seal rings 5 like this, store oily groove 6, an insulating space is formed between the inwall of coupling sleeve 3 and the outer surface of push rod 7, for storing lubricating grease, and store oily groove 6 by setting, want many before the lubricating grease stored more does not improve, like this, during normal use, push rod 7 has grease lubrication all the time with the contacting point of two seals circle 5, in addition the vibration of normal moving vehicle, the lubrication that contacting point is good can be ensured, two seal rings 5 are just not fragile yet, this ensures that there the sealability of two seal rings 5, extend the working life of seal ring 5, the loss of lubricating grease simultaneously drops to again minimum, the working life of such entirety extends greatly, prevent because seal ring 5 gas leakage causes brake drum and shoe contact friction to cause the accident of vehicle fire, decrease the loss of vehicle and property, the public transport of road is safer.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technological scheme described in the invention; Therefore, although this specification with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technological scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in right of the present invention.
Claims (1)
1. a spring brake chamber, comprise: front air chamber, rear gas chamber, coupling sleeve, o-ring groove, seal ring, store oily groove, push rod, described front air chamber and rear gas chamber are fixed together, a coupling sleeve is set firmly between described front air chamber and rear gas chamber, and the inside of coupling sleeve is all communicated with the inside of front air chamber and the inside of rear gas chamber, on the inwall of described coupling sleeve, rear and front end has an o-ring groove, and a seal ring is all installed in each o-ring groove, a push rod is set in described coupling sleeve, the front end of described push rod reaches in front air chamber, the rear end of described push rod reaches in rear gas chamber, and push rod and two seal rings are all fitted, and be slidably connected between push rod and seal ring, it is characterized in that: the inwall of described coupling sleeve has one and store oily groove, and the position storing oily groove is between former and later two o-ring grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618959.6A CN105202079A (en) | 2015-09-25 | 2015-09-25 | Spring brake air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618959.6A CN105202079A (en) | 2015-09-25 | 2015-09-25 | Spring brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105202079A true CN105202079A (en) | 2015-12-30 |
Family
ID=54949939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510618959.6A Pending CN105202079A (en) | 2015-09-25 | 2015-09-25 | Spring brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105202079A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997022506A1 (en) * | 1995-12-19 | 1997-06-26 | Nai Anchorlok, Inc. | Spring brake actuator with corrosion fuses |
| US6006651A (en) * | 1996-05-01 | 1999-12-28 | Neway Anchorlok International, Inc. | Spring brake actuator with filtered service vent opening |
| CN2823663Y (en) * | 2005-08-29 | 2006-10-04 | 瑞立集团瑞安汽车零部件有限公司 | Dog structure double diaphragm spring braking air chamber |
| CN2846243Y (en) * | 2005-12-12 | 2006-12-13 | 瑞立集团有限公司 | Inner respiratory type spring brake air chamber |
| CN101761596A (en) * | 2010-01-12 | 2010-06-30 | 瑞立集团瑞安汽车零部件有限公司 | Improved double-diaphragm spring brake chamber |
| CN202100636U (en) * | 2011-06-10 | 2012-01-04 | 蒋国芬 | Internal respiration spring braking gas chamber |
| CN203082092U (en) * | 2013-02-26 | 2013-07-24 | 王绿阳 | Internal breath type spring brake air chamber |
-
2015
- 2015-09-25 CN CN201510618959.6A patent/CN105202079A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997022506A1 (en) * | 1995-12-19 | 1997-06-26 | Nai Anchorlok, Inc. | Spring brake actuator with corrosion fuses |
| US6006651A (en) * | 1996-05-01 | 1999-12-28 | Neway Anchorlok International, Inc. | Spring brake actuator with filtered service vent opening |
| CN2823663Y (en) * | 2005-08-29 | 2006-10-04 | 瑞立集团瑞安汽车零部件有限公司 | Dog structure double diaphragm spring braking air chamber |
| CN2846243Y (en) * | 2005-12-12 | 2006-12-13 | 瑞立集团有限公司 | Inner respiratory type spring brake air chamber |
| CN101761596A (en) * | 2010-01-12 | 2010-06-30 | 瑞立集团瑞安汽车零部件有限公司 | Improved double-diaphragm spring brake chamber |
| CN202100636U (en) * | 2011-06-10 | 2012-01-04 | 蒋国芬 | Internal respiration spring braking gas chamber |
| CN203082092U (en) * | 2013-02-26 | 2013-07-24 | 王绿阳 | Internal breath type spring brake air chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |