CN108639144A - A kind of electric steering column output shaft fixing device - Google Patents
A kind of electric steering column output shaft fixing device Download PDFInfo
- Publication number
- CN108639144A CN108639144A CN201810346453.8A CN201810346453A CN108639144A CN 108639144 A CN108639144 A CN 108639144A CN 201810346453 A CN201810346453 A CN 201810346453A CN 108639144 A CN108639144 A CN 108639144A
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- CN
- China
- Prior art keywords
- output shaft
- bearing
- fixing device
- metal
- steering column
- 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.)
- Pending
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- 239000002184 metal Substances 0.000 claims abstract description 27
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 208000002474 Tinea Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Support Of The Bearing (AREA)
Abstract
The present invention provides a kind of electric steering column output shaft fixing device, can significantly eliminate the serious rear noise generated of bearing endurance quality decline.The fixing device includes worm housing, output shaft, output shaft upper bearing (metal), output shaft lower bearing, output shaft upper bearing (metal) fixed seat, output shaft lower bearing aperture baffle ring, locking nut, the shaft shoulder is set on the output shaft, the output shaft upper bearing (metal) and output shaft lower bearing are separately positioned on the upper and lower ends of the shaft shoulder, the outer ring of the output shaft lower bearing is fixed by lower output shaft lower bearing aperture with baffle ring and worm housing respectively up and down, the inner ring of output shaft lower bearing is fixed by the shaft shoulder of output shaft and locking nut respectively up and down, elastic washer is equipped between the output shaft lower bearing and the shaft shoulder.
Description
Technical field
The present invention relates to passenger car steering technical fields, and in particular to a kind of electric steering column output shaft fixation dress
It sets.
Background technology
With popularizing for automobile consumption, requirement of the consumer to car comfort is higher and higher.Steering as with drive
The person of sailing contacts most close component, and noise level directly affects driver and occupant's comfort.Steering shaft axial rigidity,
Especially output shaft axial rigidity is a key characteristic of electric power-assisted steering tubular column design：Axial rigidity is small, and vehicle is logical
Noise is apparent when crossing uneven road surface；Axial rigidity is excessive, and system friction resistance becomes larger, and the decline of bearing endurance quality is serious, decline
After will produce apparent noise.
Traditional electric steering column output shaft is fixed using two deep groove ball bearings, and an end bearing is fixed, other end axis
Travelling is held to eliminate shafting tolerance or thermal stretching.The shaft shoulder and retainer ring spacing are used in fixing end bearing internal external circle both ends respectively, end of moving about
Axis generally use inner ring does not limit generally with shafting clearance fit or the mode of outer ring and bearing block clearance fit, bearing,
Only the mode that bearing outer ring is interference fitted with bearing block or inner ring is interference fitted with shafting is leaned on to fix.Due to involved output
The mismachining tolerance of parts can only be controlled in a limited range in axis and shell equidimension chain, so in axial workpiece
Axial gap is unavoidable in the component of place.Simultaneously because the presence of bearing clearance, and the fixed mode of simple baffle ring is not
Assembly and the presence of clearance can be eliminated, steering column output shaft axial rigidity consistency is caused to be difficult to ensure.Simultaneous axis
The increase of the abrasion held, bearing clearance causes axial rigidity to further decrease, vehicle by uneven road surface when driving, ground shock
Cause output shaft to generate play in the axial direction, causes to generate impact noise inside steering, especially work as bearing support block
Cause for metal material and with the impact noise and worm screw axial float generated between the two when worm housing clearance fit
Worm and gear beat tooth noise, cause driver manipulate comfort level be deteriorated.
Invention content
The purpose of the present invention is to propose to a kind of electric steering columns to export shaft fixing device, and it is durable can significantly to eliminate bearing
The noise that performance degradation seriously generates afterwards.
Shaft fixing device, including worm housing, output shaft, output are exported according to electric steering column provided by the invention
Axis upper bearing (metal), output shaft lower bearing, output shaft upper bearing (metal) fixed seat, output shaft lower bearing aperture baffle ring, locking nut, it is described defeated
The shaft shoulder is set on shaft, the output shaft upper bearing (metal) and output shaft lower bearing are separately positioned on the upper and lower ends of the shaft shoulder,
It is characterized in that the outer ring of the output shaft lower bearing up and down respectively by lower output shaft lower bearing aperture baffle ring and worm housing
Fixed, the inner ring of output shaft lower bearing is fixed by the shaft shoulder of output shaft and locking nut respectively up and down, the output shaft lower axle
It holds and is equipped with elastic washer between the shaft shoulder.
The present invention electric steering column output shaft fixing device fixed form be：Output shaft passes through output shaft upper bearing (metal)
It is fixed on worm housing with output shaft lower bearing, is fixed using one end, the fixed form of one end travelling, wherein output shaft
The Internal and external cycle of upper bearing (metal) is interference fitted with output shaft and upper bearing (metal) fixed seat respectively, is formed travelling and is fixed；And output shaft lower bearing
After outer ring is fixed by lower output shaft lower bearing aperture baffle ring and worm housing limit respectively up and down, output shaft lower bearing inner ring
Coordinate with output shaft clearance, while output shaft lower bearing reserves certain interval with the shaft shoulder of output shaft in the axial direction, by twisting
Tight locking nut realizes output shaft axial movement, and the Internal and external cycle of output shaft upper bearing (metal) and output shaft lower bearing is made to generate opposite position
It moves, to eliminate two respective clearance of bearing；Meanwhile increasing in the reserved space of output shaft lower bearing and the shaft shoulder of output shaft
Add elastic washer, the axial gap generated after bearing wear can be eliminated；In addition, this fixed form of the present invention, even if through
After crossing the use of longer time, elastic washer elasticity becomes smaller, and impact noise still occurs, can also be directly by turning locking screw
Mother eliminates bearing clearance, and repair is very convenient.
Further, elastic washer includes the ring washer main body on top, and the inner ring of the ring washer main body is towards downward
Stretching has secondary gasket rings, and the ring washer main body and secondary gasket rings are integrally formed.The elastic washer of this spline structure, not only contributes to
The gap at output shaft lower bearing inner ring upper end is greatly filled in the positioning of elastic washer when installation after can also installing,
Play the effect for preferably eliminating the axial gap generated after bearing wear.
Further, the upper and lower end face of the ring washer main body is equipped with several annular grooves, and the annular groove is same
Heart reducing is arranged.The upper and lower end face of elastic washer is contacted with the shaft shoulder and output shaft lower bearing respectively, by the way that ring is arranged in contact surface
Connected in star can not only further increase the effect for eliminating impact noise, can also make elastic washer by tightening locking nut
Enough pretightning forces are maintained, the service life of product is extended.
Specifically, as a preferred embodiment, the radial section of the annular groove is in the ladder of bottom opening
Shape.
Specifically, as another embodiment, the radial section of the annular groove is in the triangle of bottom opening.
The inner ring of the upper bearing (metal) is interference fitted with output shaft.
The outer ring of the upper bearing (metal) is interference fitted with output shaft upper bearing (metal) fixed seat.
Description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the present invention.
Fig. 2 is the schematic cross-sectional view of the present invention.
Fig. 3 is the broken section structural schematic diagram of the present invention.
Fig. 4 is the fixed structure schematic diagram of the output shaft upper bearing (metal) of the present invention.
Fig. 5 is the structural schematic diagram of the elastomeric pad of the present invention.
Fig. 6 is sectional structure enlarged diagrams one of of the Fig. 5 at A.
Fig. 7 is the two of sectional structure enlarged diagrams of the Fig. 5 at A.
Specific implementation mode
Below against attached drawing, by the description to embodiment, for example involved to the specific implementation mode of the present invention is each
Mutual alignment and connection relation, the effect of each section and operation principle between the shape of component, construction, each section etc. are made into one
The detailed description of step.
Such as Fig. 1-5, electric steering column of the invention exports shaft fixing device, including worm housing 1, output shaft 2, defeated
Shaft upper bearing (metal) 3, output shaft lower bearing 4, output shaft upper bearing (metal) fixed seat 5, output shaft lower bearing aperture baffle ring 6, locking nut
7, the shaft shoulder 21 is set on output shaft 2, output shaft upper bearing (metal) 3 and output shaft lower bearing 4 are separately positioned on the upper and lower ends of the shaft shoulder 21,
The outer ring of output shaft lower bearing 4 is fixed by lower output shaft lower bearing aperture baffle ring 6 and worm housing 1 respectively up and down, output
The inner ring of axis lower bearing 4 is fixed by the shaft shoulder 21 of output shaft 2 and locking nut 7 respectively up and down, output shaft lower bearing 4 and the shaft shoulder
Elastic washer 8 is equipped between 21.Wherein, Fig. 1 and Fig. 2 further includes worm housing end cap 11 and output shaft fixed seat fixing bolt
12.Elastic washer 8 preferably uses rubber material.
The present invention electric steering column output shaft fixing device fixed form be：Output shaft passes through output shaft upper bearing (metal)
3 and output shaft lower bearing 4 be fixed on worm housing 1, fixed using one end, one end travelling fixed form, wherein output
The Internal and external cycle of axis upper bearing (metal) 3 is interference fitted with output shaft 2 and upper bearing (metal) fixed seat 5 respectively, is formed travelling and is fixed；And under output shaft
After 4 outer ring of bearing is fixed by lower output shaft lower bearing aperture baffle ring 6 and the limit of worm housing 1 respectively up and down, under output shaft
4 inner ring of bearing and 2 clearance fit of output shaft, while output shaft lower bearing 4 reserves one with the shaft shoulder of output shaft 2 21 in the axial direction
Fixed gap realizes that output shaft 2 moves axially by tightening locking nut 7, makes output shaft upper bearing (metal) 3 and output shaft lower bearing 4
Internal and external cycle generates relative displacement, to eliminate two respective clearance of bearing；Meanwhile in output shaft lower bearing 4 and output shaft 2
Increase elastic washer 8 in the reserved space of the shaft shoulder 21, the axial gap generated after bearing wear can be eliminated；In addition, of the invention
This fixed form, after the use of longer time, 8 elasticity of elastic washer becomes smaller, and impact noise still occurs, also
Can bearing clearance directly be eliminated by turning locking nut 7, repair is very convenient.
As preferred embodiment, elastic washer 8 includes the ring washer main body 81 on top, ring washer main body 81
Inner ring is extended with secondary gasket rings 82 downward, and ring washer main body 81 and secondary gasket rings 82 are integrally formed.The cushion of this spline structure
Circle 8 not only contributes to the positioning of elastic washer 8 when installation, is greatly filled in output shaft lower bearing 4 after can also installing
The gap at upper end is enclosed, the effect for preferably eliminating the axial gap generated after bearing wear is played.
Preferably, the upper and lower end face of ring washer main body 81 is equipped with several annular grooves 810, and annular groove 810 is concentric
Reducing is arranged.The upper and lower end face of elastic washer 8 is contacted with the shaft shoulder 21 and output shaft lower bearing 4 respectively, by being arranged in contact surface
Annular groove 810 can not only further increase the effect for eliminating impact noise, can also make bullet by tightening locking nut 7
Property washer 8 maintains enough pretightning forces, extends the service life of product.
As a preferred embodiment, the radial section of above-mentioned annular groove 810 is such as schemed in the trapezoidal of bottom opening
Shown in 6.
Specifically, as another embodiment, the radial section of above-mentioned annular groove 810 is in the triangle of bottom opening
Shape, as shown in Figure 7.
Claims (7)
1. a kind of electric steering column exports shaft fixing device, including worm housing, output shaft, output shaft upper bearing (metal), output
Axis is arranged on the output shaft in axis lower bearing, output shaft upper bearing (metal) fixed seat, output shaft lower bearing aperture baffle ring, locking nut
Shoulder, the output shaft upper bearing (metal) and output shaft lower bearing are separately positioned on the upper and lower ends of the shaft shoulder, it is characterised in that described
The outer ring of output shaft lower bearing is fixed by lower output shaft lower bearing aperture with baffle ring and worm housing respectively up and down, under output shaft
The inner ring of bearing is fixed by the shaft shoulder of output shaft and locking nut respectively up and down, is set between the output shaft lower bearing and the shaft shoulder
Flexible washer.
2. electric steering column according to claim 1 exports shaft fixing device, it is characterised in that the elastic washer packet
The ring washer main body on top is included, the inner ring of the ring washer main body is extended with secondary gasket rings, the ring washer master downward
Body and secondary gasket rings are integrally formed.
3. electric steering column according to claim 2 exports shaft fixing device, it is characterised in that the ring washer master
The upper and lower end face of body is equipped with several annular grooves, the concentric reducing setting of annular groove.
4. electric steering column according to claim 3 exports shaft fixing device, it is characterised in that the annular groove
Radial section is trapezoidal in bottom opening.
5. electric steering column according to claim 3 exports shaft fixing device, it is characterised in that the annular groove
Radial section is in the triangle of bottom opening.
6. the electric steering column according to claims 1 or 2 or 3 or 4 or 5 exports shaft fixing device, it is characterised in that institute
The inner ring and output shaft for stating upper bearing (metal) are interference fitted.
7. electric steering column according to claim 6 exports shaft fixing device, it is characterised in that outside the upper bearing (metal)
Circle is interference fitted with output shaft upper bearing (metal) fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346453.8A CN108639144A (en) | 2018-04-18 | 2018-04-18 | A kind of electric steering column output shaft fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346453.8A CN108639144A (en) | 2018-04-18 | 2018-04-18 | A kind of electric steering column output shaft fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108639144A true CN108639144A (en) | 2018-10-12 |
Family
ID=63746464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810346453.8A Pending CN108639144A (en) | 2018-04-18 | 2018-04-18 | A kind of electric steering column output shaft fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108639144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533015A (en) * | 2018-12-24 | 2019-03-29 | 奇瑞汽车股份有限公司 | A kind of motorcar electric steering deceleration mechanism output shaft fixed structure |
| CN112078656A (en) * | 2019-06-12 | 2020-12-15 | 广州汽车集团股份有限公司 | Output shaft mechanism and have its steering column and car |
| CN114235460A (en) * | 2021-11-08 | 2022-03-25 | 北京卫星制造厂有限公司 | Sampling device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08145830A (en) * | 1994-11-21 | 1996-06-07 | Koyo Seiko Co Ltd | Torque sensor |
| JP2003034254A (en) * | 2001-07-24 | 2003-02-04 | Koyo Seiko Co Ltd | Electrically driven power steering device |
| CN1599680A (en) * | 2001-12-03 | 2005-03-23 | 日本精工株式会社 | Electric power steering device |
| JP2007040315A (en) * | 2005-07-29 | 2007-02-15 | Nsk Ltd | Power transmission mechanism and electric power steering device with the built-in power transmission mechanism |
| CN201554851U (en) * | 2009-07-01 | 2010-08-18 | 舟山市金寿船舶机械有限公司 | rubber gasket |
| EP2591982A1 (en) * | 2011-11-08 | 2013-05-15 | Jtekt Europe | Assistance module for a power steering system of a vehicle |
| JP2014105715A (en) * | 2012-11-22 | 2014-06-09 | Jtekt Corp | Electric power steering apparatus |
| CN106494498A (en) * | 2016-11-25 | 2017-03-15 | 安徽江淮汽车集团股份有限公司 | Electric steering mechanism |
| CN107869511A (en) * | 2017-09-21 | 2018-04-03 | 镇江市胜得机械制造有限责任公司 | A kind of packing ring for machinery chassis |
-
2018
- 2018-04-18 CN CN201810346453.8A patent/CN108639144A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08145830A (en) * | 1994-11-21 | 1996-06-07 | Koyo Seiko Co Ltd | Torque sensor |
| JP2003034254A (en) * | 2001-07-24 | 2003-02-04 | Koyo Seiko Co Ltd | Electrically driven power steering device |
| CN1599680A (en) * | 2001-12-03 | 2005-03-23 | 日本精工株式会社 | Electric power steering device |
| JP2007040315A (en) * | 2005-07-29 | 2007-02-15 | Nsk Ltd | Power transmission mechanism and electric power steering device with the built-in power transmission mechanism |
| CN201554851U (en) * | 2009-07-01 | 2010-08-18 | 舟山市金寿船舶机械有限公司 | rubber gasket |
| EP2591982A1 (en) * | 2011-11-08 | 2013-05-15 | Jtekt Europe | Assistance module for a power steering system of a vehicle |
| JP2014105715A (en) * | 2012-11-22 | 2014-06-09 | Jtekt Corp | Electric power steering apparatus |
| CN106494498A (en) * | 2016-11-25 | 2017-03-15 | 安徽江淮汽车集团股份有限公司 | Electric steering mechanism |
| CN107869511A (en) * | 2017-09-21 | 2018-04-03 | 镇江市胜得机械制造有限责任公司 | A kind of packing ring for machinery chassis |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533015A (en) * | 2018-12-24 | 2019-03-29 | 奇瑞汽车股份有限公司 | A kind of motorcar electric steering deceleration mechanism output shaft fixed structure |
| CN109533015B (en) * | 2018-12-24 | 2021-06-29 | 奇瑞汽车股份有限公司 | Output shaft fixing structure of automobile electric steering speed reducing mechanism |
| CN112078656A (en) * | 2019-06-12 | 2020-12-15 | 广州汽车集团股份有限公司 | Output shaft mechanism and have its steering column and car |
| CN114235460A (en) * | 2021-11-08 | 2022-03-25 | 北京卫星制造厂有限公司 | Sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181012 |
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| RJ01 | Rejection of invention patent application after publication |