CN204003977U - A kind of pilot seal sleeve bushing with oilless bearing - Google Patents
A kind of pilot seal sleeve bushing with oilless bearing Download PDFInfo
- Publication number
- CN204003977U CN204003977U CN201420270308.3U CN201420270308U CN204003977U CN 204003977 U CN204003977 U CN 204003977U CN 201420270308 U CN201420270308 U CN 201420270308U CN 204003977 U CN204003977 U CN 204003977U
- Authority
- CN
- China
- Prior art keywords
- tooth bar
- hole
- oilless bearing
- bush body
- sealing device
- 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 - Fee Related
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Abstract
The utility model discloses a kind of pilot seal sleeve bushing with oilless bearing, comprise bush body, in described bush body, be provided with the tooth bar through hole of installing for automobile steering rack, the cross section of described tooth bar through hole is circular, described tooth bar through hole has madial wall to be provided with circular groove, in described circular groove, be provided with without cunning dynamic bearing, in described tooth bar through hole, be also provided with High-pressure oil sealing device, described High-pressure oil sealing device is arranged on the outer side of tooth bar through hole.In pilot seal lining with oilless bearing of the present utility model, oilless bearing is set, oilless bearing is under the effect that there is no lubricant oil, have wear-resisting, friction factor is little, long service life a little, in addition, oilless bearing is because volume is little, and sidewall is thinner, and quality is light, can make the wall thickness of lining increase, thereby improve the intensity of bush body.
Description
Technical field
The utility model relates to a kind of automobile steering device accessory, is specifically related to a kind of pilot seal lining with oilless bearing.
Background technique
Steering box, when driver beats steering wheel, helps driver firmly, to alleviate use the dynamics of driver while turning to, while reaching driving driver easily, the machine of object easily.Mainly be divided into rack and pinion steering and Worm-gear type turns to.Steering box mainly comprises steering box housing and is arranged on a series of rotation transmission paries in steering box housing, rotate transmission part and comprise gear shaft and steering shaft, in steering shaft, be provided with torsion bar through hole, in torsion bar through hole, be provided with torsion bar, steering shaft is installed and is connected with torsion bar by the mode of pin-and-hole, and the other end of torsion bar coordinates with gear shaft, one end of gear shaft coordinates with gear shaft, gear shaft engages setting with tooth bar, the two ends of tooth bar are connected with wheel of the bus by pull bar, thus gear drive wheel of the bus.Tooth bar operated by rotary motion is in the housing of automobile steering device, and tooth bar is arranged with lining outward, is formed and is closely cooperated by lining and automobile steering device shell.At present, between the lining of existing tooth bar and tooth bar, can be provided with bearing, but be generally oil bearing, need to use oil lubrication, and wear no resistance.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides that a kind of wear resistance is good, friction factor is little, the pilot seal lining with oilless bearing of high life.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of pilot seal lining with oilless bearing, comprise bush body, in described bush body, be provided with the tooth bar through hole of installing for automobile steering rack, the cross section of described tooth bar through hole is circular, described tooth bar through hole has madial wall to be provided with circular groove, in described circular groove, be provided with without cunning dynamic bearing, in described tooth bar through hole, be also provided with High-pressure oil sealing device, described High-pressure oil sealing device is arranged on the outer side of tooth bar through hole.
As preferably, a side of described circular groove is towards tooth bar through hole outside opening, and at opening, boss is set, and described High-pressure oil sealing device is arranged on boss.Adopt after above-mentioned preferred version, the High-pressure oil sealing device that is set to of boss provides mounting point, and structure is compacter.
As preferably, the outer side wall of described bush body is provided with annular seal groove, in described seal groove, is provided with O-ring seals, the vertical setting of axial position of the planar annular at described seal groove place and described tooth bar through hole.Adopt after above-mentioned preferred version, o shape seal ring of the present utility model the sealability that can increase lining and steering box housing shell is set, can effectively prevent oil leakage phenomenon.
As preferably, the outer side wall of described bush body is provided with annular restriction protrusion.Adopt after above-mentioned preferred version, bush body can more stably be fixed on the special position in steering box housing, avoids occurring slippage.
As preferably, described High-pressure oil sealing device comprises oil tight skeleton and is arranged on the rubber sealing block on oil tight skeleton.Adopt after above-mentioned preferred version, the intensity of High-pressure oil sealing device is higher, longer service life.
As preferably, described bush body deviates from a side periphery of High-pressure oil sealing device along being provided with plane of inclination.Adopt after above-mentioned preferred version, the setting that is set to back-up ring of the plane of inclination of bush body provides mounting point, can also form position-limiting action to the back-up ring in steering box housing simultaneously.
In pilot seal lining with oilless bearing of the present utility model, oilless bearing is set, oilless bearing is under the effect that there is no lubricant oil, have wear-resisting, friction factor is little, long service life a little, in addition, oilless bearing is because volume is little, and sidewall is thinner, and quality is light, can make the wall thickness of lining increase, thereby improve the intensity of bush body.
Brief description of the drawings
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
As shown in Figure 1, embodiment of the present utility model is a kind of pilot seal lining with oilless bearing specifically, comprise bush body 1, in bush body 1, be provided with the tooth bar through hole 11 of installing for automobile steering rack, the cross section of tooth bar through hole 11 is circular, and tooth bar through hole 11 has madial wall to be provided with circular groove 111, is provided with without cunning dynamic bearing 2 in circular groove 111, in tooth bar through hole 11, be also provided with High-pressure oil sealing device 12, High-pressure oil sealing device 3 is arranged on the outer side of tooth bar through hole 11.High-pressure oil sealing device 3 comprises oil tight skeleton 31 and is arranged on the rubber sealing block 32 on oil tight skeleton 31.One side of circular groove 111 is towards tooth bar through hole 11 outside openings, and at opening, boss 112 is set, High-pressure oil sealing device. be arranged on boss 112.
The outer side wall of bush body 1 is provided with annular seal groove 13, is provided with O-ring seals 4 in seal groove 13, the vertical setting of axial position of the planar annular at seal groove 13 places and tooth bar through hole 11.The outer side wall of bush body 1 is provided with annular restriction protrusion 14.Bush body 1 deviates from a side periphery of High-pressure oil sealing device 3 along being provided with plane of inclination 15.
The working principle of the working principle of the pilot seal sleeve bushing with oilless bearing of the present utility model and the automobile steering device lining of prior art is basic identical, difference is: the inside of the pilot seal sleeve bushing with oilless bearing of the present utility model adopts oilless bearing 2, the working life that can effectively improve lining.
Claims (6)
1. the pilot seal sleeve bushing with oilless bearing, comprise bush body, in described bush body, be provided with the tooth bar through hole of installing for automobile steering rack, the cross section of described tooth bar through hole is circular, it is characterized in that: described tooth bar through hole has madial wall to be provided with circular groove, in described circular groove, be provided with without cunning dynamic bearing, in described tooth bar through hole, be also provided with High-pressure oil sealing device, described High-pressure oil sealing device is arranged on the outer side of tooth bar through hole.
2. the pilot seal sleeve bushing with oilless bearing according to claim 1, is characterized in that: a side of described circular groove is towards tooth bar through hole outside opening, and at opening, boss is set, and described High-pressure oil sealing device is arranged on boss.
3. the pilot seal sleeve bushing with oilless bearing according to claim 1, it is characterized in that: the outer side wall of described bush body is provided with annular seal groove, in described seal groove, be provided with O-ring seals, the vertical setting of axial position of the planar annular at described seal groove place and described tooth bar through hole.
4. the pilot seal sleeve bushing with oilless bearing according to claim 1, is characterized in that: the outer side wall of described bush body is provided with annular restriction protrusion.
5. the pilot seal sleeve bushing with oilless bearing according to claim 1 and 2, is characterized in that: described High-pressure oil sealing device comprises oil tight skeleton and is arranged on the rubber sealing block on oil tight skeleton.
6. the pilot seal sleeve bushing with oilless bearing according to claim 1, is characterized in that: described bush body deviates from a side periphery of High-pressure oil sealing device along being provided with plane of inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270308.3U CN204003977U (en) | 2014-05-19 | 2014-05-19 | A kind of pilot seal sleeve bushing with oilless bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270308.3U CN204003977U (en) | 2014-05-19 | 2014-05-19 | A kind of pilot seal sleeve bushing with oilless bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003977U true CN204003977U (en) | 2014-12-10 |
Family
ID=52043982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270308.3U Expired - Fee Related CN204003977U (en) | 2014-05-19 | 2014-05-19 | A kind of pilot seal sleeve bushing with oilless bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003977U (en) |
-
2014
- 2014-05-19 CN CN201420270308.3U patent/CN204003977U/en not_active Expired - Fee Related
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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: 20141210 Termination date: 20150519 |
|
| EXPY | Termination of patent right or utility model |