CN202006825U - Gear and rack pressing structure of steering gear - Google Patents
Gear and rack pressing structure of steering gear Download PDFInfo
- Publication number
- CN202006825U CN202006825U CN2010206828164U CN201020682816U CN202006825U CN 202006825 U CN202006825 U CN 202006825U CN 2010206828164 U CN2010206828164 U CN 2010206828164U CN 201020682816 U CN201020682816 U CN 201020682816U CN 202006825 U CN202006825 U CN 202006825U
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- gear
- rack
- supporting seat
- tooth bar
- compression spring
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Abstract
The utility model provides a gear and rack pressing structure of a steering gear, which comprises a shell, a gear, a rack, a support seat, a helical compression spring, an adjusting bolt and an annular hard elastic piece. The gear is rotatably mounted in the shell, the rack is disposed in the shell and meshed with the gear, the support seat is mounted in the shell and supports the rack, the adjusting bolt is fittingly mounted in the shell in a threaded manner, the helical compression spring is disposed between the support seat and the adjusting bolt and respectively abutted to the support seat and the adjusting bolt, the rigidity of the annular hard elastic piece is higher than that of the helical compression spring, and the annular hard elastic piece is disposed between the support seat and the adjusting bolt and respectively abutted to the support seat and the adjusting bolt. The gear and rack pressing structure not only can eliminate vibration and noise, but also can compensate a wearing gap between the gear and the rack.
Description
Technical field
The utility model belongs to the steering device of vehicles technical field, relates in particular to a kind of rack-and-gear compressing structure of steering hardware.
Background technology
Generally be provided with rack and pinion drive mechanism in the steering device of vehicles, in the process of rack-and-gear engagement running, must keep suitable gap between the two.If excessive clearance, then be easy to generate vibration and noise in the operation process, if the gap is too small, then may cause running to have some setbacks or stuck.The general elastic support structure that adopts is given the certain precompressed compression of rack-and-gear in the prior art, and rack-and-gear is laminated together, keeps suitable gap between the two.
A kind of steering hardware of the prior art as shown in Figure 5, gear 20 is meshed with tooth bar 30, spiral compression spring 40 is arranged between supporting seat 50 and the adjustable bolt 60, adjustable bolt 60 is installed on the housing 70 by being threaded, between supporting seat 50 and the adjustable bolt 60 the less clearance (not shown) is arranged, supporting seat 50 can slide to the left or to the right, and spiral compression spring 40 applies certain precompressed compression for tooth bar 30 by supporting seat 50.But, in the above-mentioned existing structure, the rigidity of spiral compression spring 40 is bad selected, it is selected improper to be easy to, in the process of rack-and-gear running (when particularly the rotation of gear 20 switches to the another one direction by a direction), 20 pairs of tooth bars 30 of gear have makes the application force of tooth bar 30 away from gear 20 directions, if the rigidity of spiral compression spring 40 is low excessively, then spiral compression spring 40 is yielding under the effect of above-mentioned application force, gap between supporting seat 50 and the adjustable bolt 60 disappears, direct contact between the two produces vibration and noise; If the rigidity of spiral compression spring 40 is too high, then its elastic force changes greatly under the very little situation of deflection, therefore precompressed compression to be adjusted to suitable difficult, increased the difficulty that assembling is regulated, and, after the rack-and-gear wearing and tearing, supporting seat 50 moves with the gap between the compensation rack-and-gear to tooth bar 30 directions, spiral compression spring 40 elongations this moment, because spiral compression spring 40 rigidity are higher, precompressed compression reduces morely under the very little situation of distortion, causes precompressed compression can not satisfy operating needs, promptly can not compensate the wearing clearance between the rack-and-gear.
The utility model content
The utility model is for solving the selected improper problem that vibration and noise maybe can not compensate wearing clearance between the rack-and-gear that causes producing of above-mentioned spiral compression spring rigidity, a kind of rack-and-gear compressing structure of steering hardware is provided, this rack-and-gear compressing structure both can have been eliminated vibration and noise, can compensate the wearing clearance between the rack-and-gear again.
The rack-and-gear compressing structure of steering hardware of the present utility model, comprise: housing, be installed in rotation on the gear in the housing, be arranged in the housing and with the tooth bar of gear mesh, be installed in the housing and support the supporting seat of tooth bar, spiral compression spring and be installed in adjustable bolt in the housing by screw thread fit, described spiral compression spring is arranged between supporting seat and the adjustable bolt and applies effect to the tooth bar direction with supporting seat and adjustable bolt butt and to supporting seat respectively, described rack-and-gear compressing structure also comprises the ring-type hard elastics body that the ratio of rigidity spiral compression spring is big, described ring-type hard elastics body be arranged between supporting seat and the adjustable bolt and respectively with supporting seat and adjustable bolt butt, the action direction of ring-type hard elastics body and spiral compression spring is identical.
Further, described ring-type hard elastics body is a slice video disc spring.
Further, described ring-type hard elastics body is at least two video disc springs, and each video disc spring is placed along the axial overlap of spiral compression spring.
Further, the quantity of described video disc spring is 4.
Further, the length direction of tooth bar and the axis normal of gear, supporting seat be arranged on tooth bar gear dorsad a side and over against gear, supporting seat be slidably mounted in the housing and can to away from or slide near the direction of gear, supporting seat contacts with tooth bar.
Further, the supporting seat end of tooth bar dorsad is provided with one to tooth bar the direction recessed first center containing cavity and an annular notch part, the annular notch part is looped around the periphery of the first center containing cavity, adjustable bolt be positioned at supporting seat gear dorsad a side and over against gear, end towards supporting seat of adjustable bolt is provided with one to away from the recessed second center containing cavity of tooth bar direction be positioned at annular projection around the second center containing cavity, spiral compression spring be positioned at the first center containing cavity and the second center containing cavity and its two ends respectively with the diapire of the first center containing cavity and the diapire butt of the second center containing cavity, ring-type hard elastics body is arranged in the annular notch part, ring-type hard elastics body respectively with the diapire of annular notch part and annular projection end face butt towards gear.
Further, adjustable bolt is provided with outside thread, and housing is provided with and the corresponding negative thread of described outside thread.
Further, described rack-and-gear compressing structure also comprises the rotating shaft that is installed in rotation in the housing, and described gear is fixedly mounted in the rotating shaft.
Further, described gear and rotating shaft are one-body molded.
Further, the rigidity of described spiral compression spring is between 20-60N/mm, and the rigidity of described video disc spring is between 300-500N/mm.
The beneficial effects of the utility model are: the utility model is creatively combined spiral compression spring and ring-type hard elastics body, adopts spiral compression spring and these two elastomeric elements of ring-type hard elastics body to provide resilient mounting to supporting seat.The general rigidity of spiral compression spring is lower, and the general rigidity of ring-type hard elastics body is higher.The effect of spiral compression spring is to the certain precompressed compression of rack-and-gear, in addition, after the rack-and-gear wearing and tearing, supporting seat moves with the less wearing clearance between the compensation rack-and-gear to the tooth bar direction, spiral compression spring elongation this moment, because the rigidity of spiral compression spring is lower, its elastic force changes less under the less situation of distortion, therefore the precompressed compression of spiral compression spring generation can not reduce too much, and promptly spiral compression spring can compensate the wearing clearance between the rack-and-gear.
In the process of rack-and-gear running (when particularly the rotation of gear switches to the another one direction by a direction), the gear mesh tooth bar has makes the application force of tooth bar away from the gear direction, above-mentioned application force imposes on the precompressed compression of rack-and-gear greater than spiral compression spring, therefore tooth bar and supporting seat can be to away from the direction motion of gear (trend of perhaps oriented direction motion away from gear), the extruding that this moment, ring-type hard elastics body was subjected to supporting seat begins distortion, because the rigidity of ring-type hard elastics body is higher, the elastic force that produces under the less situation of distortion is very big, ring-type hard elastics body applies bigger resistance to supporting seat and tooth bar, stop tooth bar and supporting seat to direction motion away from gear, owing to be provided with ring-type hard elastics body, supporting seat and adjustable bolt can direct contacts, therefore can not produce vibration and noise, and the gap between the rack-and-gear is also not too large, can not produce vibration and noise between the rack-and-gear.
Description of drawings
Fig. 1 is the sectional structure scheme drawing of the rack-and-gear compressing structure of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of video disc spring in a kind of embodiment of the utility model;
Fig. 3 is the structural representation of supporting seat in a kind of embodiment of the utility model;
Fig. 4 is the structural representation of adjustable bolt in a kind of embodiment of the utility model;
Fig. 5 is the structure of a kind of steering hardware in the prior art.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and the embodiments, the utility model is further elaborated.Should be appreciated that the specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As Fig. 1-shown in Figure 4, the rack-and-gear compressing structure of the steering hardware of a kind of embodiment of the present utility model, comprise: housing 1, be installed in rotation on the gear 2 in the housing 1, be arranged in the housing 1 and with gear 2 ingear tooth bars 3, be installed in the housing 1 and support the supporting seat 4 of tooth bar 3, spiral compression spring 6 and be installed in adjustable bolt 5 in the housing 1 by screw thread fit, described spiral compression spring 6 is arranged between supporting seat 4 and the adjustable bolt 5 and applies effect to tooth bar 3 directions with supporting seat 4 and adjustable bolt 5 butts and to supporting seat 4 respectively, described rack-and-gear compressing structure also comprises ring-type hard elastics body, described ring-type hard elastics body be arranged between supporting seat 4 and the adjustable bolt 5 and respectively with supporting seat 4 and adjustable bolt 5 butts, ring-type hard elastics body is identical with the action direction of spiral compression spring 6.
Described rack-and-gear compressing structure also comprises rotating shaft 8, and rotating shaft 8 is installed in rotation in the housing 1, and gear 2 is fixedly mounted in the rotating shaft 8 and with rotating shaft 8 and rotates.Can adopt modes such as key commonly used is connected to achieve a fixed connection between gear 2 and the rotating shaft 8, also gear 2 and rotating shaft 8 can be made of one, promptly the two is one-body molded, and preferred gear 2 and rotating shaft 8 are one-body molded in the present embodiment.Rotating shaft 8 is installed in rotation in the housing 1 by two bearings 9 and 10, and gear 2 is between two bearings 9 and 10.
Shown in Figure 1 is the section drawing of tooth bar 3, the axis normal of the length direction of tooth bar 3 and rotating shaft 8.In rotating shaft 8 rotating process, gear 2 drives tooth bar 3, and tooth bar 3 is moved along its length direction.Supporting seat 4 be installed in tooth bar 3 gear dorsad 2 a side and over against gear 2, preferably, the axes intersect of the axis of supporting seat 4 and gear 2.Supporting seat 4 is a circle, and it is slidably mounted in the housing 1, the direction of slip of supporting seat 4 be away from or near the direction of gear 2.Supporting seat 4 adapts towards the shape of the end of tooth bar 3 and the shape of tooth bar 3, so that supporting seat 4 supports tooth bar 3 better, but direct contact between supporting seat 4 and the tooth bar 3, also can pass through other parts indirect contact, preferably, by pad 12 indirect contacts, pad 12 is arranged between supporting seat 4 and the tooth bar 3 and the shape of the shape of pad 12 and tooth bar 3 adapts between supporting seat 4 and the tooth bar 3.In the process that tooth bar 3 moves along its length direction, supporting seat 4 and pad 12 do not move with tooth bar 3, i.e. wipe contact between pad 12 and the tooth bar 3.
Supporting seat 4 end of tooth bar 3 dorsad is provided with one-tenth first a center containing cavity 401 cylindraceous and an annular notch part 402, annular notch part 402 is looped around the periphery of the first center containing cavity 401, preferably, the dead in line of the axis of the first center containing cavity 401 and supporting seat 4.Adjustable bolt 5 is provided with outside thread, housing 1 is provided with corresponding negative thread, adjustable bolt 5 is installed in the housing 1 by screw thread fit, adjustable bolt 5 be positioned at supporting seat 4 gear dorsad 2 a side and over against gear 2, end towards supporting seat 4 of adjustable bolt 5 is provided with one and becomes the second center containing cavity 501 cylindraceous and be positioned at the second center containing cavity 501 annular projection 502 on every side, spiral compression spring 6 is positioned at the first center containing cavity 401 and the second center containing cavity 501, the diapire butt of one end of spiral compression spring 6 and the first center containing cavity 401, the diapire butt of the other end of spiral compression spring 6 and the second center containing cavity 501.6 pairs of supporting seats of spiral compression spring 4 produce and make supporting seat 4 to the application force near the motion of gear 2 directions.Ring-type hard elastics body is arranged in the annular notch part 402, ring-type hard elastics body respectively with the diapire and annular projection 502 butts of annular notch part 402, ring-type hard elastics body produces supporting seat 4 and makes supporting seat 4 to the application force near the motion of gear 2 directions.
Ring-type hard elastics body can adopt the higher elastic part of various rigidity or elastomeric material to make, such as with the rubber of resin, rigidity higher (harder in other words) or video disc spring 7 etc.The preferred video disc spring 7 that adopts in the present embodiment, the rigidity of video disc spring 7 higher (rigidity of video disc spring is generally between 300-500N/mm) is out of shape less under external force.Video disc spring 7 can adopt a slice, also can adopt multi-disc, preferably, adopts 7,4 video disc springs 7 of 4 video disc springs along superimposed in the same way placement of the direction of slip of supporting seat 4 or reverse superimposed placement.
The meeting generation is jolted or is vibrated in the driving process of vehicle, thereby the autorotation that may cause adjustable bolt 5 makes it depart from desired location, in order to prevent that adjustable bolt 5 from rotating, this rack-and-gear compressing structure also comprises jam nut 11, jam nut 11 be installed on the adjustable bolt 5 by screw thread fit and with housing 1 butt.
The rigidity of spiral compression spring 6 is lower, and particularly, the rigidity of spiral compression spring 6 is between 20-60N/mm.
During installation, should regulate the position of adjustable bolt 5, make spiral compression spring 6 that certain pretension be arranged, 6 pairs of supporting seats of spiral compression spring 4 produce certain precompressed compression, and 4 pairs of tooth bars of supporting seat 3 produce certain precompressed compression, and video disc spring 7 has a small amount of pretension simultaneously.
In the process of gear 2 and tooth bar 3 runnings, 2 pairs of tooth bars 3 of gear have make tooth bar 3 away from the application force of gear 2 directions (when the rotation of gear 2 switches to the another one direction by a direction, above-mentioned application force is bigger), above-mentioned application force is generally a lot of greatly than the precompressed compression that 6 pairs of supporting seats of spiral compression spring 4 produce, therefore tooth bar 3 and supporting seat 4 can be to away from the direction motion of gear 2 (trend of perhaps oriented direction motion away from gear 2), the extruding that this moment, video disc spring 7 was subjected to supporting seat 4 begins distortion, because the rigidity of video disc spring 7 is higher, the elastic force that produces under the less situation of distortion is very big, 7 pairs of supporting seats 4 of video disc spring and tooth bar 3 apply bigger resistance, stop tooth bar 3 and supporting seat 4 to direction motion away from gear 2, make the suitable gap of maintenance between gear 2 and the tooth bar 3, the vibration and the noise that produce between gear 2 and the tooth bar 3 are less.After gear 2 and tooth bar 3 wearing and tearing, supporting seat 4 is less wearing clearance between the direction of tooth bar 3 moves with compensation gear 2 and tooth bar 3, spiral compression spring 6 elongations this moment, because the rigidity of spiral compression spring 6 is lower, its elastic force changes less under the less situation of distortion, therefore the precompressed compression of spiral compression spring 6 generations can not reduce too much, and promptly spiral compression spring 6 can compensate the wearing clearance between gear 2 and the tooth bar 3.
The above only is a better embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the rack-and-gear compressing structure of a steering hardware, comprise: housing, be installed in rotation on the gear in the housing, be arranged in the housing and with the tooth bar of gear mesh, be installed in the housing and support the supporting seat of tooth bar, spiral compression spring and be installed in adjustable bolt in the housing by screw thread fit, described spiral compression spring is arranged between supporting seat and the adjustable bolt and applies effect to the tooth bar direction with supporting seat and adjustable bolt butt and to supporting seat respectively, it is characterized in that, described rack-and-gear compressing structure also comprises the ring-type hard elastics body that the ratio of rigidity spiral compression spring is big, described ring-type hard elastics body be arranged between supporting seat and the adjustable bolt and respectively with supporting seat and adjustable bolt butt, the action direction of ring-type hard elastics body and spiral compression spring is identical.
2. rack-and-gear compressing structure as claimed in claim 1 is characterized in that, described ring-type hard elastics body is a slice video disc spring.
3. rack-and-gear compressing structure as claimed in claim 1 is characterized in that, described ring-type hard elastics body is at least two video disc springs, and each video disc spring is placed along the axial overlap of spiral compression spring.
4. rack-and-gear compressing structure as claimed in claim 3 is characterized in that, the quantity of described video disc spring is 4.
5. rack-and-gear compressing structure as claimed in claim 1, it is characterized in that, the length direction of tooth bar and the axis normal of gear, supporting seat be arranged on tooth bar gear dorsad a side and over against gear, supporting seat be slidably mounted in the housing and can to away from or slide near the direction of gear, supporting seat contacts with tooth bar.
6. rack-and-gear compressing structure as claimed in claim 5, it is characterized in that, the supporting seat end of tooth bar dorsad is provided with one to tooth bar the direction recessed first center containing cavity and an annular notch part, the annular notch part is looped around the periphery of the first center containing cavity, adjustable bolt be positioned at supporting seat gear dorsad a side and over against gear, end towards supporting seat of adjustable bolt is provided with one to away from the recessed second center containing cavity of tooth bar direction be positioned at annular projection around the second center containing cavity, spiral compression spring be positioned at the first center containing cavity and the second center containing cavity and its two ends respectively with the diapire of the first center containing cavity and the diapire butt of the second center containing cavity, ring-type hard elastics body is arranged in the annular notch part, ring-type hard elastics body respectively with the diapire of annular notch part and annular projection end face butt towards gear.
7. rack-and-gear compressing structure as claimed in claim 6 is characterized in that adjustable bolt is provided with outside thread, and housing is provided with and the corresponding negative thread of described outside thread.
8. rack-and-gear compressing structure as claimed in claim 1 is characterized in that, described rack-and-gear compressing structure also comprises the rotating shaft that is installed in rotation in the housing, and described gear is fixedly mounted in the rotating shaft.
9. rack-and-gear compressing structure as claimed in claim 8 is characterized in that described gear and rotating shaft are one-body molded.
10. as claim 2 or 3 described rack-and-gear compressing structures, it is characterized in that the rigidity of described spiral compression spring is between 20-60N/mm, the rigidity of described video disc spring is between 300-500N/mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206828164U CN202006825U (en) | 2010-12-25 | 2010-12-25 | Gear and rack pressing structure of steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206828164U CN202006825U (en) | 2010-12-25 | 2010-12-25 | Gear and rack pressing structure of steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202006825U true CN202006825U (en) | 2011-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206828164U Expired - Lifetime CN202006825U (en) | 2010-12-25 | 2010-12-25 | Gear and rack pressing structure of steering gear |
Country Status (1)
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|---|---|
| CN (1) | CN202006825U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923180A (en) * | 2012-10-24 | 2013-02-13 | 安徽誉丰汽车技术有限责任公司 | Steering gear structure for reducing mechanical shock noise |
| CN103085856A (en) * | 2011-11-08 | 2013-05-08 | 福特全球技术公司 | Yoke assembly for power steering rack and pinion gear set |
| CN103143960A (en) * | 2013-03-11 | 2013-06-12 | 钱汝玉 | Box angle fine adjustment mechanism for universal fixture |
| CN103143967A (en) * | 2013-03-11 | 2013-06-12 | 钱汝玉 | Rapid-positioning and pneumatic-compressing universal fixture capable of slightly adjusting inclination angle |
| CN103303358A (en) * | 2012-03-08 | 2013-09-18 | 株式会社捷太格特 | Steering system |
| CN104249754A (en) * | 2013-06-28 | 2014-12-31 | 现代摩比斯株式会社 | Yoke clearance compensation device |
| CN104919972A (en) * | 2015-05-21 | 2015-09-23 | 凤冈县凤鸣农用机械制造有限公司 | Harvesting-machine lifting device of walking-type harvester |
| CN105460075A (en) * | 2015-12-16 | 2016-04-06 | 上汽通用五菱汽车股份有限公司 | Redirector gear rack gap control method |
| CN106428190A (en) * | 2015-08-04 | 2017-02-22 | 株式会社万都 | Steering device support mechanism |
| CN107635852A (en) * | 2015-05-04 | 2018-01-26 | 捷太格特欧洲公司 | Electronic-controlled power steering button with the damper with tapered base |
| CN107870248A (en) * | 2017-11-13 | 2018-04-03 | 威海威高生物科技有限公司 | Reaction cup conveying device |
| CN109367616A (en) * | 2018-10-30 | 2019-02-22 | 武汉嘉迅汽车配件有限公司 | A kind of mechanical steering shell |
| CN109625078A (en) * | 2018-12-19 | 2019-04-16 | 芜湖世特瑞转向系统有限公司 | Turning machine Mesh Clearance Adjustment device |
| CN110194210A (en) * | 2019-05-30 | 2019-09-03 | 奇瑞汽车股份有限公司 | A kind of gear shaft gap adjusting structure of diverter |
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2010
- 2010-12-25 CN CN2010206828164U patent/CN202006825U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085856A (en) * | 2011-11-08 | 2013-05-08 | 福特全球技术公司 | Yoke assembly for power steering rack and pinion gear set |
| CN103303358B (en) * | 2012-03-08 | 2016-06-29 | 株式会社捷太格特 | Transfer |
| CN103303358A (en) * | 2012-03-08 | 2013-09-18 | 株式会社捷太格特 | Steering system |
| CN102923180A (en) * | 2012-10-24 | 2013-02-13 | 安徽誉丰汽车技术有限责任公司 | Steering gear structure for reducing mechanical shock noise |
| CN103143967A (en) * | 2013-03-11 | 2013-06-12 | 钱汝玉 | Rapid-positioning and pneumatic-compressing universal fixture capable of slightly adjusting inclination angle |
| CN103143960A (en) * | 2013-03-11 | 2013-06-12 | 钱汝玉 | Box angle fine adjustment mechanism for universal fixture |
| CN104249754A (en) * | 2013-06-28 | 2014-12-31 | 现代摩比斯株式会社 | Yoke clearance compensation device |
| CN107635852A (en) * | 2015-05-04 | 2018-01-26 | 捷太格特欧洲公司 | Electronic-controlled power steering button with the damper with tapered base |
| CN107635852B (en) * | 2015-05-04 | 2021-02-02 | 捷太格特欧洲公司 | Backlash compensation device for a toothed rack in a motor vehicle steering module |
| CN104919972A (en) * | 2015-05-21 | 2015-09-23 | 凤冈县凤鸣农用机械制造有限公司 | Harvesting-machine lifting device of walking-type harvester |
| CN106428190B (en) * | 2015-08-04 | 2018-11-30 | 株式会社万都 | A kind of diverter supporting mechanism |
| CN106428190A (en) * | 2015-08-04 | 2017-02-22 | 株式会社万都 | Steering device support mechanism |
| CN105460075A (en) * | 2015-12-16 | 2016-04-06 | 上汽通用五菱汽车股份有限公司 | Redirector gear rack gap control method |
| CN105460075B (en) * | 2015-12-16 | 2018-06-22 | 上汽通用五菱汽车股份有限公司 | A kind of rack of steering clearance control method |
| CN107870248B (en) * | 2017-11-13 | 2024-03-12 | 威海威高生物科技有限公司 | Reaction cup conveying device |
| CN107870248A (en) * | 2017-11-13 | 2018-04-03 | 威海威高生物科技有限公司 | Reaction cup conveying device |
| CN109367616A (en) * | 2018-10-30 | 2019-02-22 | 武汉嘉迅汽车配件有限公司 | A kind of mechanical steering shell |
| CN109625078A (en) * | 2018-12-19 | 2019-04-16 | 芜湖世特瑞转向系统有限公司 | Turning machine Mesh Clearance Adjustment device |
| CN110194210A (en) * | 2019-05-30 | 2019-09-03 | 奇瑞汽车股份有限公司 | A kind of gear shaft gap adjusting structure of diverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |
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| CX01 | Expiry of patent term |