CN101648497A - Straight-through and unilateral blocked type central inflation/deflation structure - Google Patents
Straight-through and unilateral blocked type central inflation/deflation structure Download PDFInfo
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- CN101648497A CN101648497A CN200810051082A CN200810051082A CN101648497A CN 101648497 A CN101648497 A CN 101648497A CN 200810051082 A CN200810051082 A CN 200810051082A CN 200810051082 A CN200810051082 A CN 200810051082A CN 101648497 A CN101648497 A CN 101648497A
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- semiaxis
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- wheel
- air
- valve assembly
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a straight-through and unilateral blocked type central inflation/deflation structure, which is characterized in that an air joint with an O-shaped seal ring of which a threadpart is coated with sealant is arranged in a thread hole of the end cover of a wheel-side gear shell; an air seal and an oil seal are sequentially pressed into a hole at the inner end of a half axle and fixed by a clamp spring; a half axle assembly part provided with the air seal and the oil seal is arranged on a wheel-side reducer and locked tightly by a half axle bolt; a one-way valve assembly is arranged at the outer end part of the half axle and is locked tightly by coating the sealant; and an upper air pipeline is arranged on the exterior of the one-way valve assembly 1 and connected witha tyre airtight core. The straight-through and unilateral blocked type central inflation/deflation structure has the characteristics of simple structure and manufacturing process, convenient manufacture and assembly, and cost reduction of the whole axle. The linear velocity of a small oil seal lip is very low, so the probability of oil seepage and air leakage of a GTIS system gas path is greatlyreduced. The straight and smooth gas channel enables the GTIS system to have high inflation speed and sensitive response, and the reliability of the GTIS system is improved.
Description
Technical field:
The present invention relates to a kind of straight-through, central inflation/deflation structure of unilateral blocked type, be applicable to fully floating axle, externally-engaged cylindrical gear portal drive axle, the military vehicle manufacture.
Background technology:
Central in the past inflation/deflation structure mostly adopts the hub shell channel type, that is: oil, sealing gland are installed on the wheel hub.Because oil gas envelope diameter is bigger, cause oil gas envelope linear velocity higher, very easily cause oil, sealing gland wearing and tearing, damage, cause infiltrating in the central air-charging and air-discharging system lubricating oil, GTIS thrashing.Owing to wheel hub air passage structure complexity, processing technology is loaded down with trivial details simultaneously, and air-flow is smooth and easy inadequately, has increased the inflation of tire time, has reduced the sensitivity of GTIS system simultaneously.
In addition, large diameter oil, sealing gland and complicated wheel hub air passage structure have increased manufacturing, assembling and maintenance use cost again.
Summary of the invention:
The object of the present invention is to provide a kind of straight-through, central inflation/deflation structure of unilateral blocked type, on fully floating axle, externally-engaged cylindrical gear portal drive axle, provide a kind of can cost-cutting and straight-through, the central inflation/deflation structure of unilateral blocked type of semiaxis of oil impregnate, gas leakage possibility; The pore of pressurized air on steering swivel, enter the semiaxis air flue, and rely on the oil gas isolation in semiaxis end oil, sealing gland and the wheel reduction gear by the air pipe joint; Check valve and outside atmosphere by the semiaxis outer end are isolated, to guarantee pipeline air pressure.
Technical scheme of the present invention is achieved in that the central inflation/deflation structure of straight-through, unilateral blocked type, is made up of check valve assembly 1, semiaxis 2, sealing gland 3, oil sealing 4, jump ring 5, air pipe joint 6, O RunddichtringO 7, wheel heel teeth hub end cap 8, semiaxis bolt 9, wheel hub 10, hub bearing 11 etc.; It is characterized by: have the pneumatic fitting 6 of O RunddichtringO 7, threaded portion coated sealant, be installed in the tapped bore of wheel heel teeth hub end cap 8 on, sealing gland 3 is pressed in the hole of semiaxis 2 the inners successively with oil sealing 4, and is fixing with jump ring 5; The semiaxis component 2 that the oil gas envelope is housed is installed on the wheel reduction gear, and locks with semiaxis bolt 9; Check valve assembly 1 is installed in the outer end of semiaxis 2, gluing locking; Check valve assembly 1 outside is installed airline and is connected with tyre airtight core.
Good effect of the present invention is to have structure and manufacturing process is very simple, makes, easy to assembly, has reduced the cost of whole bridge.The linear velocity of little oil seal lip is the end very, has greatly reduced the probability of oil impregnate, gas leakage in the GTIS system gas circuit.Straight suitable air flue makes GTIS system aeration speed fast, and reflection is sensitive.Improved the GTIS system reliability.
Description of drawings:
Fig. 1 is the structural representation of invention;
Fig. 2 is an assembling scheme drawing of the present invention;
The specific embodiment:
The present invention will be further described below in conjunction with accompanying drawing: as shown in Figure 1, 2; Straight-through, the central inflation/deflation structure of unilateral blocked type are made up of check valve assembly 1, semiaxis 2, sealing gland 3, oil sealing 4, jump ring 5, air pipe joint 6, O RunddichtringO 7, wheel heel teeth hub end cap 8, semiaxis bolt 9, wheel hub 10, hub bearing 11 etc.; It is characterized by: have the pneumatic fitting 6 of O RunddichtringO 7, threaded portion coated sealant, be installed in the tapped bore of wheel heel teeth hub end cap 8 on, and locking; Sealing gland 3 is pressed in the hole of semiaxis 2 the inners successively with oil sealing 4, and is fixing with jump ring 5; The semiaxis component 2 that the oil gas envelope is housed is installed on the wheel reduction gear, and locks with semiaxis bolt 9; Check valve assembly 1 is installed in the outer end of semiaxis 2, gluing locking; Pressurized air enters in the air duct of air pipe joint 6 and semiaxis 2 by the areole on the wheel heel teeth hub end cap 8, relies on sealing gland 3, oil sealing 4 and wheel reduction gear internal insulation this moment, relies on check valve assembly 1 and outside atmosphere to isolate simultaneously.Check valve assembly 1 outside is installed airline and is connected with tyre airtight core, can realize the charging-discharging function of tire.Adopt very little oil, the air seal structure of diameter, air flue is directly suitable.
The pore of pressurized air on steering swivel, by entering into air flue in the semiaxis on the inner air flue of pneumatic fitting, and rely on the interior oil gas isolating seal of oil, sealing gland and wheel reduction gear of semiaxis inner end; Check valve and outside atmosphere by the semiaxis outer end are isolated, to guarantee pipeline air pressure.
During assembling, at first will the O RunddichtringO be installed on the air pipe joint, this component is installed on the cylindrical gear shell end cap of wheel limit (scribbling sealant on the screw thread), with the back-to-back semiaxis end that is pressed into of oily packing, jump ring is installed afterwards to semiaxis jump ring groove again.Wheel hub and cylindrical wheel case install adjust finish after, the semiaxis component plug-in mounting that is pressed into the oil gas envelope is gone in the wheel reduction gear.
Claims (1)
1, straight-through, the central inflation/deflation structure of unilateral blocked type is made up of check valve assembly (1), semiaxis (2), sealing gland (3), oil sealing (4), jump ring (5), air pipe joint (6), O RunddichtringO (7), wheel heel teeth hub end cap (8), semiaxis bolt (9), wheel hub (10), hub bearing (11) etc.; It is characterized in that: the pneumatic fitting (6) that has O RunddichtringO (7), threaded portion is coated sealant, on being installed in the tapped bore of taking turns heel teeth hub end cap (8), sealing gland (3) is pressed in the inner hole of semiaxis (2) successively with oil sealing (4), fixes with jump ring (5); The semiaxis component (2) that the oil gas envelope is housed is installed on the wheel reduction gear, and locks with semiaxis bolt (9); Check valve assembly (1) is installed in the outer end of semiaxis (2), gluing locking; Check valve assembly (1) outside is installed airline and is connected with tyre airtight core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051082A CN101648497A (en) | 2008-08-15 | 2008-08-15 | Straight-through and unilateral blocked type central inflation/deflation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051082A CN101648497A (en) | 2008-08-15 | 2008-08-15 | Straight-through and unilateral blocked type central inflation/deflation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101648497A true CN101648497A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810051082A Pending CN101648497A (en) | 2008-08-15 | 2008-08-15 | Straight-through and unilateral blocked type central inflation/deflation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101648497A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410369A (en) * | 2011-08-23 | 2012-04-11 | 中国北方车辆研究所 | Combined oil-gas seal device |
| CN107471925A (en) * | 2017-07-12 | 2017-12-15 | 中国第汽车股份有限公司 | A kind of free-standing central inflation/deflation structure |
-
2008
- 2008-08-15 CN CN200810051082A patent/CN101648497A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410369A (en) * | 2011-08-23 | 2012-04-11 | 中国北方车辆研究所 | Combined oil-gas seal device |
| CN102410369B (en) * | 2011-08-23 | 2015-08-26 | 中国北方车辆研究所 | A kind of Combined oil-gas seal device |
| CN107471925A (en) * | 2017-07-12 | 2017-12-15 | 中国第汽车股份有限公司 | A kind of free-standing central inflation/deflation structure |
| CN107471925B (en) * | 2017-07-12 | 2023-08-11 | 中国第一汽车股份有限公司 | Independent central inflation and deflation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111103 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20111103 Address after: 130011 Changchun Province, West New Economic Development Zone, Dongfeng Street, No. 2259, No. Applicant after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Applicant before: China FAW Group Corporation |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100217 |