CN201158405Y - Improved rack-and-pinion redirector - Google Patents
Improved rack-and-pinion redirector Download PDFInfo
- Publication number
- CN201158405Y CN201158405Y CNU2007200888653U CN200720088865U CN201158405Y CN 201158405 Y CN201158405 Y CN 201158405Y CN U2007200888653 U CNU2007200888653 U CN U2007200888653U CN 200720088865 U CN200720088865 U CN 200720088865U CN 201158405 Y CN201158405 Y CN 201158405Y
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- Prior art keywords
- rack
- gear
- shell body
- housing
- face
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- Expired - Fee Related
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Abstract
An improved rack-and-pinion steering-gear belongs to the vehicle rack-and-pinion steering transmission mechanism, and includes a rack and a pinion meshed mutually, a pull rod in threaded connection with the two ends of the rack, a shell body or a shell body component, and two end shields connected between the shell body or the shell body component and the pull rod. The two ends of the rack are cylindrical, the end surface of the pull rod is larger than the adjacent rack end surface, and the two ends in the shell body are provided with limiting end surfaces opposite to the end surfaces at the two ends of the pull rod. The improved rack-and-pinion steering-gear is characterized in that macromolecule material sleeves for contacting the end surfaces of the pull rod with the two ends of the rack are respectively arranged on the excircles of the two ends of the rack. The problems of knocking noise and vibration caused by the direct rigid contact between the pull rod end surface and the shell body limiting end surfaces when the similar steering-gear is in the limiting position can be solved by the improved rack-and-pinion steering-gear through arranging the sleeves to shorten the length of the steering-gear shell body and reducing the weight of the steering-gear, thereby enabling a vehicle to be lighter and more petrol-saving.
Description
Technical field
The utility model relates to motor gear's rack-type steering gear, comprises mechanical type, electric hydaulic type and hydraulic booster type.
Background technology
Along with the raising of human society, impel automobile to develop to low noise, light oil-efficient direction to environmental protection, the requirement of energy aspect.Deflector is as the major part of automobile, also has further for this reason target and improved technology space.Existing rack and pinion steering gear general structure is as shown in Figure 1: it comprises mating gear 1 tooth bar 2, with the pull bar 3 of thread connection in the tooth bar two ends, housing or housing unit 5, be connected in the two ends protective cover 4 between housing or housing unit 5 and the pull bar 3, the two ends of tooth bar 2 are cylinder, the end face of pull bar 3 is greater than the end face of the tooth bar 2 adjacent with it, and two ends are provided with spacing end face 5a and spacing end face 5b in the housing 5, and they are relative with left and right sides pull bar end face 3a respectively.During motor turning, gear 1 rotation, tooth bar 2 is to left end or right-hand member direction moving linearly, when redirecting to the limit, rigidity takes place with the pull bar end face 3a of the spacing end face 5a of housing 5 or right-hand member with the spacing end face 5b of housing 5 and contacts in the pull bar end face 3a of left end, in the vehicle traveling process, be difficult to avoid producing strike note and vibrations.In addition, because rack stroke is certain, the spacing endface position in the left and right sides is promptly certain in housing or the housing unit, and above-mentioned deflector structure makes housing or housing unit longer relatively, is unfavorable for that loss of weight is fuel-efficient.
Summary of the invention
The purpose of the utility model provides a kind of improved rack and pinion steering gear, to eliminate noise and the vibrations that produced owing to the rigidity contact at the steering lock place, simultaneously, the length of steering gear housing or housing unit is shortened, and alleviates the weight of deflector.
Deflector structure provided by the utility model, comprise the mating gear tooth bar, with the pull bar of thread connection in the tooth bar two ends, housing or housing unit, be connected in the two ends protective cover between housing or housing unit and the pull bar, described tooth bar two ends are cylinder, the end face of pull bar is greater than the end face of the tooth bar adjacent with it, two ends are provided with the spacing end face relative with two ends pull bar end face in the housing, it is characterized in that, on the cylindrical at tooth bar two ends, be respectively equipped with the High molecular material sleeve of contact local terminal pull bar end face.
Structure of the present utility model, when redirecting to end position, contact with corresponding spacing end face in housing or the housing unit by a certain end sleeve on the tooth bar, realize spacing, under rack stroke unmodified situation, housing or housing unit shorten the length of twice sleeve.
The beneficial effects of the utility model are:
1, set High molecular material sleeve can cushion, shock-absorbing, thereby can avoid the metal bump of deflector at the steering lock place, thereby eliminates noise and the vibrations that bump causes.
2, owing to be provided with sleeve, make the length of housing reduce two-fold cover tube length, and bush material proportion is more much smaller than metal, thereby makes the weight saving of deflector, reduce complete vehicle weight, make the vehicle can be more fuel-efficient.
Description of drawings
Fig. 1 is a conventional gears tooth bar deflector structural representation,
Fig. 2 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described.
Referring to Fig. 2, the utility model comprises phase gear 1 tooth bar 2, with the pull bar 3 of thread connection in tooth bar 2 two ends, housing or housing unit 5, be connected in the two ends protective cover 4 between housing or housing unit 5 and the pull bar 3, the two ends of tooth bar 2 are cylinder, the end face of the pull bar 3 adjacent with tooth bar 2 is greater than the end face of tooth bar 2, be provided with spacing end face 5a and the 5b relative in housing or the housing unit 5 with two ends pull bar 3 end faces, for solving rigid impact and loss of weight, the sleeve 6 of High molecular material is set on the cylindrical at tooth bar 2 two ends, this sleeve interference fit is in tooth bar 2, the one end contacts with the end face of pull bar 3, realize axial location, like this, when redirecting to end position, collide by the sleeve 6 of a certain end and spacing end face 5a or the 5b in housing or the housing unit 5, play buffer action.The material of making sleeve 6 can be High molecular materials such as nylon, glass fibre, plastics, and its performance requriements is: axial compression strength satisfies deflector peak output power, uses in the deflector working temperature range and can not produce distortion or cracking.This example adopt to be added the nylon 66 composite material of certain proportion glass fibre and is made, can shock-absorbing, have good intensity again, and light specific gravity.After being provided with sleeve 6 at tooth bar 2 two ends, under identical rack stroke, the length of tooth bar itself is constant, and the corresponding length that shortens twice sleeve 6 of the length of housing or housing unit 5, because the existing axial location of protective cover 4 on pull bar can freely change, so even the length of housing 5 shortens, the length of protective cover 4 also needn't extend.
Claims (3)
1, a kind of improved rack and pinion steering gear, comprise the mating gear tooth bar, with the pull bar of thread connection in the tooth bar two ends, housing or housing unit, be connected in the two ends protective cover between housing or housing unit and the pull bar, described tooth bar two ends are cylinder, the end face of pull bar is greater than the end face of the tooth bar adjacent with it, two ends are provided with the spacing end face relative with two ends pull bar end face in the housing, it is characterized in that, on the cylindrical at tooth bar two ends, be respectively equipped with the High molecular material sleeve of contact local terminal pull bar end face.
2, a kind of improved rack and pinion steering gear according to claim 1 is characterized in that, sleeve and tooth bar interference fit.
3, a kind of improved rack and pinion steering gear according to claim 1 is characterized in that, described sleeve is combined into by glass fibre and nylon 66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200888653U CN201158405Y (en) | 2007-12-07 | 2007-12-07 | Improved rack-and-pinion redirector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200888653U CN201158405Y (en) | 2007-12-07 | 2007-12-07 | Improved rack-and-pinion redirector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201158405Y true CN201158405Y (en) | 2008-12-03 |
Family
ID=40108998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200888653U Expired - Fee Related CN201158405Y (en) | 2007-12-07 | 2007-12-07 | Improved rack-and-pinion redirector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201158405Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786778A (en) * | 2012-11-01 | 2014-05-14 | 重庆长安汽车股份有限公司 | Anti-collision and noise-reduction combined gasket of spherical hinge of steering gear |
| CN103818449A (en) * | 2012-11-16 | 2014-05-28 | 广州汽车集团股份有限公司 | Gear-rack steering gear |
| CN106090162A (en) * | 2016-06-04 | 2016-11-09 | 芜湖世特瑞转向***有限公司 | The tooth bar location structure of rack and pinion steering gear |
-
2007
- 2007-12-07 CN CNU2007200888653U patent/CN201158405Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786778A (en) * | 2012-11-01 | 2014-05-14 | 重庆长安汽车股份有限公司 | Anti-collision and noise-reduction combined gasket of spherical hinge of steering gear |
| CN103786778B (en) * | 2012-11-01 | 2016-04-27 | 重庆长安汽车股份有限公司 | The crashproof noise abatement compound gasket of a kind of deflector ball pivot |
| CN103818449A (en) * | 2012-11-16 | 2014-05-28 | 广州汽车集团股份有限公司 | Gear-rack steering gear |
| CN103818449B (en) * | 2012-11-16 | 2016-01-27 | 广州汽车集团股份有限公司 | A kind of rack and pinion steering gear |
| CN106090162A (en) * | 2016-06-04 | 2016-11-09 | 芜湖世特瑞转向***有限公司 | The tooth bar location structure of rack and pinion steering gear |
| CN106090162B (en) * | 2016-06-04 | 2019-04-02 | 芜湖世特瑞转向***有限公司 | The rack gear location structure of rack and pinion steering gear |
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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: Zhejiang Henglong Vie Pump Co., Ltd. Assignor: Jingzhou Henglong Automobile Parts Manufacturing Co., Ltd. Contract record no.: 2010330001243 Denomination of utility model: Improved rack-and-pinion redirector Granted publication date: 20081203 License type: Exclusive License Record date: 20100702 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20111207 |