CN106627738A - Self-lubricating rack bushing - Google Patents
Self-lubricating rack bushing Download PDFInfo
- Publication number
- CN106627738A CN106627738A CN201510728521.3A CN201510728521A CN106627738A CN 106627738 A CN106627738 A CN 106627738A CN 201510728521 A CN201510728521 A CN 201510728521A CN 106627738 A CN106627738 A CN 106627738A
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- Prior art keywords
- bush
- wall
- bush body
- shock absorption
- profit
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Abstract
The invention discloses a self-lubricating rack bushing which comprises a bushing body and is characterized in that multiple rows of grid grooves used to store lubricant grease are formed in the inner wall of the bushing body; the two adjacent rows of grid grooves are disposed in a staggered manner; three damping bars are disposed axially on the outer wall of the bushing body; the three damping bars are disposed symmetrically; a buffer groove is formed in the outer wall of the bushing body on two sides of each damping bar respectively; groove depths of the two buffer grooves are equal; and axial teeth are disposed on the outer wall of the bushing body between the two damping bars. The invention provides the self-lubricating rack bushing which has the advantages that the structure is simple; use is convenient; fitting with a steering gear shell is stable; lubrication effects are good; wear resistance performance is high; and the service life is long.
Description
Technical field
The present invention relates to a kind of bushing, more particularly to a kind of from profit rack bush.
Background technology
The rack bush of pinion and-rack manual steering gear, is assemblied in inside steering gear housing, and outer end is fixed by back-up ring, and tooth bar is passed through from the middle of rack bush.Rack bush is played a supporting role to tooth bar, it is ensured that tooth bar smooth movement, and then completes the steering of automobile.Rack bush receives radial pressure and the axial friction that tooth bar gives in this motor process.Current rack bush is after long-time use, due to lubricant effect it is bad, bushing is easy to abrasion, make to form larger gap between bushing and tooth bar, cause steering gear abnormal sound, and steering wheel is likely to occur back just too fast phenomenon, it is unfavorable for that driver controls steering wheel, there is serious traffic safety hidden danger.Simultaneously current rack bush does not have damping effect, so greatly reduces the performance of steering gear, and comfortableness has much room for improvement.In addition current rack bush is engaged with steering gear housing and is not sufficiently stable, and rack bush can be moved, and greatly reduce the safety and reliability of whole steering gear.
The content of the invention
In order to solve the problems of the prior art, the invention provides a kind of simple structure, easy to use, coordinate stable with steering gear housing, high lubricating effect is wear-resistant, the profit rack bush certainly of long service life.
In order to solve the above problems, the technical solution used in the present invention is：
A kind of profit rack bush certainly, including bush body, it is characterised in that：Some rows are provided with the inwall of bush body for storing the grid groove of grease, the adjacent two rows grid groove is crisscross arranged, there are three shock absorption strips the outer wall of bush body is axially disposed, three shock absorption strips are symmetrical arranged, a dashpot is respectively arranged with the bush body outer wall of shock absorption strip both sides, the groove depth of described two dashpots is identical, and on the outer wall of the bush body between two shock absorption strips axial tooth is provided with.
It is aforementioned a kind of from profit rack bush, it is characterised in that：The bush body is made using polytetrafluoroethylmaterial material, and the bush body is cylinder.
It is aforementioned a kind of from profit rack bush, it is characterised in that：It is provided with three boss on the outer wall of bush body, the boss extends axial tooth, and in the top surface of boss and bush body end face be generally aligned in the same plane.
It is aforementioned a kind of from profit rack bush, it is characterised in that：Three boss are uniformly distributed, and the spacing between adjacent lands is identical.
It is aforementioned a kind of from profit rack bush, it is characterised in that：The length being shorter in length than between bush body upper surface and lower surface of the shock absorption strip.
It is aforementioned a kind of from profit rack bush, it is characterised in that：The shock absorption strip is made using elastomeric material.
The beneficial effect that the present invention is reached：The present invention is provided with some row's grid grooves from profit rack bush on the inwall of bush body, grid groove is used to store grease, grease plays lubricant effect, so rack bush and tooth bar abrasion is substantially reduced, and adjacent two rows grid groove is crisscross arranged, so cause lubrication more uniform, lubricant effect is more preferable, and also will not overflow, simultaneously the outer wall in bush body axially disposed has three shock absorption strips, three shock absorption strips are symmetrical arranged, shock absorption strip is made using elastomeric material, a dashpot is respectively arranged with the bush body outer wall of shock absorption strip both sides, by shock absorption strip so that bushing has damping effect, steering gear performance is greatly improved, comfortableness is obviously improved.In addition the present invention is provided with three boss on the outer wall of bush body, and the boss extends axial tooth, and in the top surface of boss and bush body end face be generally aligned in the same plane.Three boss are uniformly distributed, and the spacing between adjacent lands is identical, and rack bush can preferably be coordinated by boss with steering gear housing, and rack bush is not moved, and only realize that tooth bar is moved axially, and steering gear uses more stable safety.
Description of the drawings
Fig. 1 is the present invention from profit rack bush structural representation.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.Following examples are only used for clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, a kind of made from profit rack bush, including bush body 1, the bush body 1 using polytetrafluoroethylmaterial material, the bush body 1 is cylinder.Some rows are provided with the inwall of bush body 1 for storing the grid groove 2 of grease, the adjacent two rows grid groove 2 is crisscross arranged, there are three shock absorption strips 3 the outer wall of bush body 1 is axially disposed, three shock absorption strips 3 are symmetrical arranged, the length being shorter in length than between the upper surface of bush body 1 and lower surface of the damping 3, the shock absorption strip 3 is made using elastomeric material.
A dashpot 4 is respectively arranged with the bush body outer wall of the both sides of shock absorption strip 3, the groove depth of described two dashpots 4 is identical, on the outer wall of the bush body 1 between two shock absorption strips 3 axial tooth 5 is provided with.
It is provided with three boss 6 on the outer wall of bush body 1, the boss 6 extends axial tooth 5, and in the top surface of boss 6 and the end face of bush body 1 be generally aligned in the same plane.Three boss 6 are uniformly distributed, and the spacing between adjacent lands 6 is identical.
The beneficial effect that the present invention is reached：The present invention is provided with some row's grid grooves 2 from profit rack bush on the inwall of bush body 1, grid groove 2 is used to store grease, grease plays lubricant effect, so rack bush and tooth bar abrasion is substantially reduced, and adjacent two rows grid groove 2 is crisscross arranged, so cause lubrication more uniform, lubricant effect is more preferable, and also will not overflow, simultaneously the outer wall in bush body 1 axially disposed has three shock absorption strips 3, three shock absorption strips 3 are symmetrical arranged, shock absorption strip 3 is made using elastomeric material, a dashpot 4 is respectively arranged with the bush body outer wall of the both sides of shock absorption strip 3, cause bushing that there is damping effect by shock absorption strip 4, steering gear performance is greatly improved, comfortableness is obviously improved.In addition the present invention is provided with three boss 6 on the outer wall of bush body 1, and the boss 6 extends axial tooth 5, and in the top surface of boss 6 and the end face of bush body 1 be generally aligned in the same plane.Three boss 6 are uniformly distributed, and the spacing between adjacent lands 6 is identical, and rack bush can preferably be coordinated by boss 6 with steering gear housing, and rack bush is not moved, and only realize that tooth bar is moved axially, and steering gear uses more stable safety.
Ultimate principle, principal character and the advantage of the present invention has been shown and described above.It should be understood by those skilled in the art that; the present invention is not restricted to the described embodiments; merely illustrating the principles of the invention described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements are both fallen within scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (6)
1. a kind of profit rack bush certainly, including bush body, it is characterised in that：Some rows are provided with the inwall of bush body for storing the grid groove of grease, the adjacent two rows grid groove is crisscross arranged, there are three shock absorption strips the outer wall of bush body is axially disposed, three shock absorption strips are symmetrical arranged, a dashpot is respectively arranged with the bush body outer wall of shock absorption strip both sides, the groove depth of described two dashpots is identical, and on the outer wall of the bush body between two shock absorption strips axial tooth is provided with.
2. a kind of from profit rack bush according to claim 1, it is characterised in that：The bush body is made using polytetrafluoroethylmaterial material, and the bush body is cylinder.
3. a kind of from profit rack bush according to claim 2, it is characterised in that：It is provided with three boss on the outer wall of bush body, the boss extends axial tooth, and in the top surface of boss and bush body end face be generally aligned in the same plane.
4. a kind of from profit rack bush according to claim 3, it is characterised in that：Three boss are uniformly distributed, and the spacing between adjacent lands is identical.
5. a kind of from profit rack bush according to claim 4, it is characterised in that：The length being shorter in length than between bush body upper surface and lower surface of the shock absorption strip.
6. a kind of from profit rack bush according to claim 5, it is characterised in that：The shock absorption strip is made using elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728521.3A CN106627738A (en) | 2015-10-30 | 2015-10-30 | Self-lubricating rack bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728521.3A CN106627738A (en) | 2015-10-30 | 2015-10-30 | Self-lubricating rack bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106627738A true CN106627738A (en) | 2017-05-10 |
Family
ID=58809987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510728521.3A Pending CN106627738A (en) | 2015-10-30 | 2015-10-30 | Self-lubricating rack bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106627738A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3505898A (en) * | 1967-09-12 | 1970-04-14 | Cam Gears Ltd | Steering gear assembly |
| JP2001260906A (en) * | 2000-03-21 | 2001-09-26 | Koyo Seiko Co Ltd | Steering device |
| CN201953819U (en) * | 2011-01-19 | 2011-08-31 | 荆州奥克兰塑业有限公司 | Wear-resistant bushing for movable shaft of automobile |
| CN202208309U (en) * | 2011-09-09 | 2012-05-02 | 武汉捷隆汽车电动转向系统有限公司 | Highly wear-resisting rack bushing of steering gear |
| CN102829154A (en) * | 2012-09-20 | 2012-12-19 | 重庆龙润汽车转向器有限公司 | Gear rack bushing |
| CN202641828U (en) * | 2012-07-16 | 2013-01-02 | 杭州新世宝电动转向系统有限公司 | Bush for redirector |
| JP2013231477A (en) * | 2012-04-27 | 2013-11-14 | Nsk Ltd | Rack bushing of rack-and-pinion steering device |
| CN205186262U (en) * | 2015-10-30 | 2016-04-27 | 镇江市博新氟塑有限公司 | From moist rack bushing |
-
2015
- 2015-10-30 CN CN201510728521.3A patent/CN106627738A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3505898A (en) * | 1967-09-12 | 1970-04-14 | Cam Gears Ltd | Steering gear assembly |
| JP2001260906A (en) * | 2000-03-21 | 2001-09-26 | Koyo Seiko Co Ltd | Steering device |
| CN201953819U (en) * | 2011-01-19 | 2011-08-31 | 荆州奥克兰塑业有限公司 | Wear-resistant bushing for movable shaft of automobile |
| CN202208309U (en) * | 2011-09-09 | 2012-05-02 | 武汉捷隆汽车电动转向系统有限公司 | Highly wear-resisting rack bushing of steering gear |
| JP2013231477A (en) * | 2012-04-27 | 2013-11-14 | Nsk Ltd | Rack bushing of rack-and-pinion steering device |
| CN202641828U (en) * | 2012-07-16 | 2013-01-02 | 杭州新世宝电动转向系统有限公司 | Bush for redirector |
| CN102829154A (en) * | 2012-09-20 | 2012-12-19 | 重庆龙润汽车转向器有限公司 | Gear rack bushing |
| CN205186262U (en) * | 2015-10-30 | 2016-04-27 | 镇江市博新氟塑有限公司 | From moist rack bushing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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