CN105151114A - Electric steering-column worm and gear structure - Google Patents
Electric steering-column worm and gear structure Download PDFInfo
- Publication number
- CN105151114A CN105151114A CN201510649155.2A CN201510649155A CN105151114A CN 105151114 A CN105151114 A CN 105151114A CN 201510649155 A CN201510649155 A CN 201510649155A CN 105151114 A CN105151114 A CN 105151114A
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- worm gear
- steering column
- axle
- upper shell
- worm
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Abstract
The invention relates to an electric steering-column worm and gear structure. The electric steering-column worm and gear structure comprises a first steering-column mandrel, a torsion bar, a worm, a worm gear, a second steering-column mandrel, an upper worm-gear casing, a lower worm-gear casing, a first bearing, a second bearing and a third bearing, wherein the second bearing is fixed on the second steering-column mandrel and is connected with the upper worm-gear casing; the third bearing is fixed on the second steering-column mandrel and is connected with the lower worm-gear casing. According to the invention, a lower worm-gear casing and a supporting plate, in the prior art, are formed into an integral structure, and wave springs are omitted; when the worm gear is stressed by the moment to the second steering-column mandrel, the upper worm-gear casing and the lower worm-gear casing together realize the effect of supporting, so that the wear caused by the second steering-column mandrel to the lower casing is reduced; therefore, abnormal noise of a wearing clearance is avoided.
Description
Technical field
The invention belongs to steering swivel system technical field, refer to a kind of electric steering column worm gear structure especially.
Background technology
The turning function of automobile is realized by steering swivel system, and steering swivel system is made up of steering handwheel, steering column, deflector etc.; Chaufeur rotates steering handwheel, and by steering column axle transmitting torque to deflector, deflector the sway changing into tooth bar, and then realizes the left and right turn of car load.Electric boosting steering system is that controller moves according to change in torque control motor positive and inverse, provides corresponding power-assisted by the rotation of worm and gear; Worm and gear coordinates rotation, and moment of torsion is large especially, because wearing and tearing make gap become large, and then generation abnormal sound, affect the traveling comfort of client.
Electric steering column worm gear structure conventional at present, motor is all the end at steering column, as shown in Figure 1, steering wheel rotation steering column first axle 1, steering column first axle 1 drives torsion bar 2 distortion, after controller receives the distortion signal of torsion bar 2, control driven by motor worm screw 11 and rotate; Worm screw 11 drives worm gear 7, and moment of torsion is passed to steering column second axle 9 by worm gear 7, by steering column second axle 9, moment of torsion is passed to deflector.Wherein clutch shaft bearing 8 is fixed in steering column second axle and supports upper shell 3, and the second bearing 10 is fixed on the stay bearing plate 5 that steering column second axle supports; Stay bearing plate 5 outward flange and turbine body 6 interference fit, turbine body 6 and upper shell 3 are bolted to connection; Wavy spring 4 is arranged between turbine body 6 and stay bearing plate 5, plays compensate for wear effect, and electrical part 12 is fixed in steering column second axle.
The shortcoming of existing technology is, when worm drive worm gear move, steering column second axle is rotated under the support of clutch shaft bearing and the second bearing, because worm and gear moment of torsion is comparatively large, also larger to the application force of bearing generation.Clutch shaft bearing is fixed on upper shell, relative wear is less, second bearing is fixed on stay bearing plate, although stay bearing plate is interference fit with coordinating of turbine body, but under worm gear comparatively noticeable effort, still relative motion can be produced between stay bearing plate and turbine body, produce wearing and tearing, easy generation gap, in order to compensate its gap, between stay bearing plate and turbine body, add wavy spring, but be limited to the impact of the factors such as the rigidity of wavy spring, although have certain effect to the gap abnormal sound between stay bearing plate and turbine body, but can not eradicate.
Summary of the invention
The object of the invention is to propose improvement opportunity scheme to existing electric steering column worm gear structure, the gap abnormal sound problem produced between stay bearing plate and turbine body can be solved by the technical program.
The present invention is achieved by the following technical solutions:
A kind of electric steering column worm gear structure, includes steering column first axle, torsion bar, worm screw, worm gear, steering column second axle, worm gear upper shell, worm gear lower house, clutch shaft bearing, the second bearing and the 3rd bearing;
Described steering column first axle is connected with described steering column second axle by described torsion bar;
Described worm screw engages with described worm gear; Described worm gear is connected with steering column second axle;
Worm gear upper shell is fixedly connected with described worm gear lower house; Described steering column first axle is through described worm gear upper shell; Described steering column second axle is through described worm gear lower house; Described worm screw and described worm gear are arranged in the space that is made up of described worm gear upper shell and described worm gear lower house;
Described clutch shaft bearing is fixed in described steering column first axle, and is connected with described worm gear upper shell;
Described second bearing is fixed in described steering column second axle, and is connected with described worm gear upper shell;
Described 3rd bearing is fixed in described steering column second axle, and is connected with described worm gear lower house.
Further, also electrical part is included; Described electrical part is fixed in described steering tube first axle.
Further, described worm gear upper shell and described worm gear lower house are bolted to connection.
Further, described worm gear upper shell includes upper shell body and adapter plate; Described upper shell body is adjacent with described worm gear lower house; Described steering column first axle is successively through described upper shell body and described adapter plate.
Further, described clutch shaft bearing is connected with described adapter plate; Described second bearing is connected with described upper shell body.
The invention has the beneficial effects as follows:
The present invention is by being designed to integrative-structure by the worm gear upper shell of existing technology and stay bearing plate, and eliminate the use of wavy spring, when worm gear is subject to the effect of moment to steering tube second axle, jointly played a supporting role by worm gear upper shell and worm gear lower house, reduce steering tube second axle to the wearing and tearing of lower house, thus avoid wearing clearance abnormal sound.
Accompanying drawing explanation
Fig. 1 is existing technology electric steering column worm gear structure schematic diagram;
Fig. 2 is electric steering column worm gear structure schematic diagram of the present invention.
Description of reference numerals
1 steering column first axle, 2 torsion bars, 3 upper shells, 4 wavy springs, 5 stay bearing plates, 6 turbine bodies, 7 worm gears, 8 clutch shaft bearings, 9 steering column second axles, 10 second bearings, 11 worm screws, 12 electrical parts, 01 steering column first axle, 02 torsion bar, 03 clutch shaft bearing, 04 adapter plate, 05 worm gear upper shell, 06 worm gear lower house, 07 worm screw, 08 steering column second axle, 09 the 3rd bearing, 010 worm gear, 011 second bearing, 012 electrical part.
Detailed description of the invention
Describe technical scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
The invention provides a kind of electric steering column worm gear structure, as described in Figure 2, steering column first axle 01, torsion bar 02, worm screw 07, worm gear 010, steering column second axle 08, worm gear upper shell 05, worm gear lower house 06, clutch shaft bearing 03, second bearing 011 and the 3rd bearing 09 is included.
Described steering column first axle 01 is connected with described steering column second axle 08 by described torsion bar 02; During steering wheel rotation, drive steering column first axle 01 to rotate, during steering column the first central axis, drive torsion bar distortion, controller, after receiving distortion signal, controls assist motor action.
Described worm screw 07 engages with described worm gear 010; Described worm gear 010 is connected with steering column second axle 08; The output shaft of assist motor and worm screw are fixed as one structure or be set to worm structure in the end of output shaft.Worm screw rotating drive worm gear wheel, passes to steering column second axle by the power-assisted of assist motor, by steering column second axle, moment of torsion is passed to deflector.
Worm gear upper shell 05 and described worm gear lower house 06 are bolted to connection; Described steering column first axle is through described worm gear upper shell; In this application, described worm gear upper shell includes upper shell body and adapter plate 04; Described upper shell body is adjacent with described worm gear lower house; Described steering column first axle is successively through described upper shell body and described adapter plate.The double-decker of this worm gear upper shell also improves the support strength to steering column second axle.Described steering column second axle is through described worm gear lower house; Described worm screw and described worm gear are arranged in the space that is made up of described worm gear upper shell and described worm gear lower house.
Described clutch shaft bearing 03 is fixed in described steering column first axle 01, and is connected with described worm gear upper shell.
Described second bearing 011 is fixed in described steering column second axle 08, and is connected with described worm gear upper shell.
Described 3rd bearing 09 is fixed in described steering column second axle 08, and is connected with described worm gear lower house.
Further, electrical part 012 is also included; Described electrical part 012 is fixed in described steering tube first axle 01.
Described clutch shaft bearing is connected with described adapter plate; Described second bearing is connected with described upper shell body.
The stay bearing plate of existing technology and worm gear upper shell are designed to an integral structure by the application, when worm gear is subject to moment center roller generation power, is jointly played a supporting role, can not produce wearing clearance abnormal sound by worm gear upper shell and worm gear lower house.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (5)
1. an electric steering column worm gear structure, is characterized in that: include steering column first axle, torsion bar, worm screw, worm gear, steering column second axle, worm gear upper shell, worm gear lower house, clutch shaft bearing, the second bearing and the 3rd bearing;
Described steering column first axle is connected with described steering column second axle by described torsion bar;
Described worm screw engages with described worm gear; Described worm gear is connected with described steering column second axle;
Worm gear upper shell is fixedly connected with described worm gear lower house; Described steering column first axle is through described worm gear upper shell; Described steering column second axle is through described worm gear lower house; Described worm screw and described worm gear are arranged in the space that is made up of described worm gear upper shell and described worm gear lower house;
Described clutch shaft bearing is fixed in described steering column first axle, and is connected with described worm gear upper shell;
Described second bearing is fixed in described steering column second axle, and is connected with described worm gear upper shell;
Described 3rd bearing is fixed in described steering column second axle, and is connected with described worm gear lower house.
2. electric steering column worm gear structure according to claim 1, is characterized in that: also include electrical part; Described electrical part is fixed in described steering tube first axle.
3. electric steering column worm gear structure according to claim 1, is characterized in that: described worm gear upper shell and described worm gear lower house are bolted to connection.
4. electric steering column worm gear structure according to claim 1, is characterized in that: described worm gear upper shell includes upper shell body and adapter plate; Described upper shell body is adjacent with described worm gear lower house; Described steering column first axle is successively through described upper shell body and described adapter plate.
5. electric steering column worm gear structure according to claim 4, is characterized in that: described clutch shaft bearing is connected with described adapter plate; Described second bearing is connected with described upper shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649155.2A CN105151114A (en) | 2015-09-30 | 2015-09-30 | Electric steering-column worm and gear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649155.2A CN105151114A (en) | 2015-09-30 | 2015-09-30 | Electric steering-column worm and gear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105151114A true CN105151114A (en) | 2015-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510649155.2A Pending CN105151114A (en) | 2015-09-30 | 2015-09-30 | Electric steering-column worm and gear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105151114A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201553194U (en) * | 2009-11-20 | 2010-08-18 | 浙江福林国润汽车零部件有限公司 | Automobile electric power steering column assembly reduction mechanism |
| US20120241246A1 (en) * | 2009-12-28 | 2012-09-27 | Jtekt Corporation | Electric power steering device |
| CN103770831A (en) * | 2012-10-17 | 2014-05-07 | 上海航天汽车机电股份有限公司 | Electric power steering device and installation method thereof |
| CN203739969U (en) * | 2013-11-15 | 2014-07-30 | 天津德科汽车部件有限公司 | Pinion-type electric power steering gear adopting novel sensor |
| CN104149841A (en) * | 2014-08-18 | 2014-11-19 | 安徽江淮汽车股份有限公司 | Abnormal sound prevention structure for worm wheel bearing seat of electric power steering column |
| CN204978817U (en) * | 2015-09-30 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Electronic steering column worm gear structure |
-
2015
- 2015-09-30 CN CN201510649155.2A patent/CN105151114A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201553194U (en) * | 2009-11-20 | 2010-08-18 | 浙江福林国润汽车零部件有限公司 | Automobile electric power steering column assembly reduction mechanism |
| US20120241246A1 (en) * | 2009-12-28 | 2012-09-27 | Jtekt Corporation | Electric power steering device |
| CN103770831A (en) * | 2012-10-17 | 2014-05-07 | 上海航天汽车机电股份有限公司 | Electric power steering device and installation method thereof |
| CN203739969U (en) * | 2013-11-15 | 2014-07-30 | 天津德科汽车部件有限公司 | Pinion-type electric power steering gear adopting novel sensor |
| CN104149841A (en) * | 2014-08-18 | 2014-11-19 | 安徽江淮汽车股份有限公司 | Abnormal sound prevention structure for worm wheel bearing seat of electric power steering column |
| CN204978817U (en) * | 2015-09-30 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Electronic steering column worm gear structure |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |