CN201065053Y - Modified seal structure for automobile wheel edge gas charging and discharging deceleration drive axle - Google Patents
Modified seal structure for automobile wheel edge gas charging and discharging deceleration drive axle Download PDFInfo
- Publication number
- CN201065053Y CN201065053Y CN 200720156017 CN200720156017U CN201065053Y CN 201065053 Y CN201065053 Y CN 201065053Y CN 200720156017 CN200720156017 CN 200720156017 CN 200720156017 U CN200720156017 U CN 200720156017U CN 201065053 Y CN201065053 Y CN 201065053Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- sealing
- packing holder
- spindle nose
- discharge
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an improved sealing structure of automotive speed-reducing driving axle, in particular to an improved sealing structure of speed-reducing driving axle for automotive wheel rim charge and discharge. the utility model is characterized in that: a sealing ring seat is arranged between sealing section of a shaft head and a wheel hub, the sealing ring seat is arranged on the shaft head, an oil-gas sealing ring is arranged between the sealing ring seat and the wheel hub, the sealing ring seat is a circular loop, two or more through-holes are arranged evenly along the periphery of circular loop wall, a circle of groove is also arranged at the middle of the inner wall of the circular loop. As the shaft head is arranged with the sealing ring seat that can ensure sealing and also is convenient for replacement, plus the sealing ring is arranged between the shaft head and the sealing ring seat, double sealing protections are provided for the gas charge and discharge system, thereby obtaining better sealing effect, moreover the shaft head is unnecessary to be replaced so as to save maintenance cost and time. The utility model is an improvement helpful to improve automotive working efficiency.
Description
Technical field
The utility model relates to the hermetically-sealed construction of car deceleration drive axle, especially charges and discharge the improved hermetically-sealed construction of gas deceleration bridge about a kind of automotive wheels limit.
Background technology
At present, all deceleration bridges that wheel limit inflation/deflation structure is housed, its air-channel system that charges and discharge gas is by passing through in the spindle nose of drive axle and the wheel hub.Yet, there is relative motion between wheel hub and the spindle nose, so, guarantee that the air-tightness of air-channel system between the relative motion part is the key point of its structure.In order to guarantee to charge and discharge the air-tightness of gas, be provided with twice oil gas seal ring between spindle nose and the wheel hub, and the oil gas seal ring is directly to be assemblied in spindle nose, the two has high speed rotary motion relatively, in case worn and torn or damage in the zone that spindle nose cooperates with the oil gas seal ring, then cause wheel limit charging-discharging function malfunctioning because of system's gas leakage.Generally speaking, spindle nose is can not keep in repair and can only change.But spindle nose is big because of its difficulty of processing, cost is high, and the manufacturability of repair and replacement is relatively poor, has increased productive costs and reduced work efficiency for the normal operation of vehicle.In order to change this situation, the hermetically-sealed construction that present wheel limit is charged and discharged gas deceleration bridge exists further improved possibility.
The utility model content
The purpose of this utility model is for reducing maintenance cost and the raising vehicle operating efficient that the automotive wheels limit charges and discharge gas deceleration bridge, charging and discharging the improved hermetically-sealed construction of gas deceleration bridge and propose a kind of automotive wheels limit.
The improvement project of sealing structure is achieved in that a kind of automotive wheels limit charges and discharge the improved hermetically-sealed construction of gas deceleration bridge, comprise spindle nose, wheel hub, oil gas seal ring, it is characterized in that being provided with packing holder between the seal section of spindle nose and wheel hub, packing holder is assemblied in spindle nose, and the oil gas seal ring is located between packing holder and the wheel hub; Packing holder is an annulus, and along the through hole more than 2 of being circumferentially with of annulus wall, the middle part of circle ring inner wall also is provided with a circle groove; Be located in the groove along the circumferential through hole of annulus wall; Spindle nose and the section of cooperation of packing holder are provided with the circular groove more than 1, and groove is built-in with seal ring; 4 through holes that are circumferentially with along packing holder annulus wall; Spindle nose is provided with 2 circular grooves with the section of cooperation of packing holder, is equipped with seal ring in the groove respectively.
Press the hermetically-sealed construction that this programme is implemented; owing on spindle nose, be provided with and not only can guarantee the packing holder that seals but also be convenient to change; between spindle nose and packing holder, be provided with seal ring again in addition; be provided with the double seal protection for charging and discharging air-channel system; not only obtained than before better sealing effectiveness; and saved maintenance cost and man-hour because of changing spindle nose, the utility model is a kind of improvement that improves vehicle operation efficient that is of value to.
Description of drawings
Fig. 1 is the structural representation of the part of the utility model axial section;
Fig. 2 is the structural representation of packing holder;
Fig. 3 is the structural representation of spindle nose.
The specific embodiment
Be described in further detail in conjunction with the accompanying drawings.The new shape of this practicality is to be provided with packing holder 5 between the seal section of spindle nose 1 and wheel hub 4, packing holder 5 with the dynamic pressure adapting device in spindle nose 1, packing holder 5 is annulus, be provided with 4 through holes 50 in that the periphery of annulus wall is even, the middle part of circle ring inner wall also is provided with a circle groove 501, it is semi-round torus section that groove 501 forms the cross section with the spindle nose cylindrical, and the effect of this passage is to be convenient to charge and discharge gas to concentrate and guarantee the unimpeded of gas circuit in groove.Oil gas seal ring 3 is located between packing holder 5 and the wheel hub 4, for guaranteeing that this improved hermetically-sealed construction has more good sealing effectiveness, be provided with 2 circular grooves 100 at spindle nose 1 with the section of cooperation of packing holder 5, circular groove is built-in with seal ring 2, the inwall pressing of packing holder 5 makes also to have kept good sealing between spindle nose 1 and the packing holder 5 simultaneously in seal ring 2.In the use, if gas leak phenomenon takes place because of wearing and tearing in packing holder 5, at this moment, as long as change packing holder 5, and needn't change spindle nose, usually, because the structure more complicated and the productive costs of spindle nose are higher, and the structure of packing holder is simpler, and tooling cost is also lower, repair and replacement are convenient, so, only need change packing holder during gas leakage and needn't change spindle nose and get final product.So the improved hermetically-sealed construction of the utility model, actv. has realized reducing the purpose of maintenance cost and raising vehicle operation efficient.
Among the figure 10 and 40 is the air flue in the air-channel system.When needs charged and discharged gas, high pressure draft is by the groove 501 of air flue 10 in packing holder 5---entered air flue 40 by pore 50---by the passage between two oil gas seal rings 3---.
Claims (6)
1. an automotive wheels limit charges and discharge the improved hermetically-sealed construction of gas deceleration bridge, comprise spindle nose, wheel hub, oil gas seal ring, it is characterized in that being provided with packing holder between the seal section of spindle nose and wheel hub, packing holder is assemblied in spindle nose, and the oil gas seal ring is located between packing holder and the wheel hub.
2. charge and discharge the improved hermetically-sealed construction of gas deceleration bridge by the described automotive wheels of claim 1 limit, it is characterized in that packing holder is an annulus, be provided with through hole more than 2 along the periphery of annulus wall, the middle part of circle ring inner wall also is provided with a circle groove.
3. charge and discharge the improved hermetically-sealed construction of gas deceleration bridge by the described automotive wheels of claim 2 limit, it is characterized in that being located in the groove along the circumferential through hole of annulus wall.
4. charge and discharge the improved hermetically-sealed construction of gas deceleration bridge by the described automotive wheels of claim 1 limit, it is characterized in that the spindle nose and the section of cooperation of packing holder are provided with the circular groove more than 1, groove is built-in with seal ring.
5. charge and discharge the improved hermetically-sealed construction of gas deceleration bridge by the described automotive wheels of claim 2 limit, it is characterized in that being provided with 4 through holes along the periphery of packing holder annulus wall.
6. charge and discharge the improved hermetically-sealed construction of gas deceleration bridge by the described automotive wheels of claim 4 limit, it is characterized in that the spindle nose and the section of cooperation of packing holder are provided with 2 circular grooves, are equipped with seal ring respectively in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720156017 CN201065053Y (en) | 2007-07-09 | 2007-07-09 | Modified seal structure for automobile wheel edge gas charging and discharging deceleration drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720156017 CN201065053Y (en) | 2007-07-09 | 2007-07-09 | Modified seal structure for automobile wheel edge gas charging and discharging deceleration drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065053Y true CN201065053Y (en) | 2008-05-28 |
Family
ID=39482216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720156017 Expired - Lifetime CN201065053Y (en) | 2007-07-09 | 2007-07-09 | Modified seal structure for automobile wheel edge gas charging and discharging deceleration drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065053Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069680A (en) * | 2011-01-06 | 2011-05-25 | 中国重汽集团济南动力有限公司 | Bridge for central tire inflation/deflation structure |
| CN102785537A (en) * | 2012-08-27 | 2012-11-21 | 贵州航天红光机械制造有限公司 | Automatic inflating and deflating device for tyre of special vehicle |
| CN105082903A (en) * | 2015-07-27 | 2015-11-25 | 广西柳工机械股份有限公司 | Wheel type construction machinery with inflating system |
-
2007
- 2007-07-09 CN CN 200720156017 patent/CN201065053Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069680A (en) * | 2011-01-06 | 2011-05-25 | 中国重汽集团济南动力有限公司 | Bridge for central tire inflation/deflation structure |
| CN102785537A (en) * | 2012-08-27 | 2012-11-21 | 贵州航天红光机械制造有限公司 | Automatic inflating and deflating device for tyre of special vehicle |
| CN105082903A (en) * | 2015-07-27 | 2015-11-25 | 广西柳工机械股份有限公司 | Wheel type construction machinery with inflating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shaanxi Hande Cheqiao Co.,Ltd. Assignor: Shaanxi Automobile Group Co., Ltd. Contract record no.: 2011610000098 Denomination of utility model: Modified seal structure for automobile wheel edge gas charging and discharging deceleration drive axle Granted publication date: 20080528 License type: Exclusive License Record date: 20110712 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080528 |