CN106494498A - Electric steering mechanism - Google Patents
Electric steering mechanism Download PDFInfo
- Publication number
- CN106494498A CN106494498A CN201611062081.3A CN201611062081A CN106494498A CN 106494498 A CN106494498 A CN 106494498A CN 201611062081 A CN201611062081 A CN 201611062081A CN 106494498 A CN106494498 A CN 106494498A
- Authority
- CN
- China
- Prior art keywords
- inner ring
- bearing
- steering mechanism
- electric steering
- keyway
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 10
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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
- B62D5/0421—Electric motor acting on or near steering gear
-
- 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
- B62D5/0442—Conversion of rotational into longitudinal movement
- B62D5/0445—Screw drives
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention discloses a kind of electric steering mechanism, wherein, including：Ball, elastic washer, bearing, the first inner ring and belt wheel；Bearing and the first inner ring are rotated and are set on tooth bar leading screw, and the outer ring of bearing is fixedly installed on housing, and elastic washer is fastened between bearing and the first inner ring；Flange is provided with first inner ring；Slot rolling is provided with the one side coordinated with tooth bar leading screw on the inner ring of the first inner ring and bearing, and ball is rolled and is arranged in slot rolling；Belt wheel is fixedly installed on flange, and Timing Belt is rolled with belt wheel and is connected.The electric steering mechanism that the present invention is provided, by arranging elastomeric pad, the automatic reparation of system lash is realized such that it is able to pass through the self-deformation of elastomeric pad, while by the linear motion that the rotational motion of bearing is converted into tooth bar leading screw using ball, itself the rolling regulating system gap by ball is achieved, the uncontrollable problem being threadedly coupled in prior art is solved.
Description
Technical field
A kind of the present invention relates to automobile technical field, more particularly to electric steering mechanism.
Background technology
At present, the electric powered steering structure that limousine and min-truck are adopted is usually driving band type driving structure, the electricity
Dynamic steering structure is moved by Motor drive Timing Belt, and Timing Belt drives ball nut to rotate, and rotary motion is turned by ball nut
The linear motion of tooth bar leading screw is turned to, so as to realize car load vehicle wheel rotation function.
But, gap can be produced when tooth bar leading screw and ball nut fix insecure between the two, will result in rolling spiral shell
Moving along a straight line does not occur in the low-angle hour rack leading screw that rotates of female generation, and so will result in steering sensitivity decline, such as weares and teares
Excessively seriously will result in the own gap of steering excessive, driver or so spin rapidly to when to produce steering different
Ring, and the gap cannot be repaired automatically, can cause system crash in the course of time.
Content of the invention
It is an object of the invention to provide a kind of electric steering mechanism, to realize automatic repair system gap, and then eliminates system
System abnormal sound, it is ensured that system is normally run.
The invention provides a kind of electric steering mechanism, including housing, motor, Timing Belt and tooth bar leading screw, the motor
It is arranged on housing, the Timing Belt is arranged on the motor shaft of the motor, one end of the tooth bar leading screw is rotatably arranged on
On the housing, the other end of the tooth bar leading screw is located in the Timing Belt, wherein, and the electric steering mechanism is also wrapped
Include：
Ball, elastic washer, bearing and the first inner ring, the bearing and first inner ring are rotated and are set in the tooth bar
On leading screw, the outer ring of the bearing is fixedly installed on the housing, and the elastic washer is fastened on the bearing and described
Between one inner ring；Flange is provided with first inner ring；
Slot rolling is provided with the one side coordinated with the tooth bar leading screw on the inner ring of first inner ring and the bearing,
The ball is rolled and is arranged in the slot rolling；
Belt wheel, the belt wheel are fixedly installed on the flange, and the Timing Belt is rolled with the belt wheel and is connected.
Electric steering mechanism as above, these, it is preferred to, also include key, on first inner ring, be provided with the
One keyway, is provided with the second keyway on the second bearing inner ring, the aligned in position of first keyway and second keyway
Arrange, the key is fastened in first keyway and second keyway.
Electric steering mechanism as above, these, it is preferred to, the quantity of first keyway and second keyway
It is two respectively, and two first keyways is separately positioned on relative two sides on first inner ring, described two institutes
State the second keyway and be separately positioned on relative two sides on the inner ring of the bearing.
Electric steering mechanism as above, these, it is preferred to, the key is on the axial direction of the tooth bar leading screw
There is gap between first keyway and second keyway.
Electric steering mechanism as above, these, it is preferred to, inner cone is provided with the two sides of the elastic washer
Face, on first inner ring and the bearing inner ring on the elastic washer coordinate one side on be provided with and the inner cone
The male cone (strobilus masculinus) that face coordinates.
Electric steering mechanism as above, these, it is preferred to, the internal diameter and the bearing of first inner ring interior
External diameter of the internal diameter of circle more than the tooth bar leading screw.
Electric steering mechanism as above, these, it is preferred to, opening is provided with the elastic washer.
Electric steering mechanism as above, these, it is preferred to, also including compressing plug screw, the compression plug screw is fixed
It is arranged on the outer ring of the bearing.
The present invention provide electric steering mechanism, by arrange elastomeric pad, such that it is able to pass through elastomeric pad itself
The automatic reparation of system lash is realized in deformation, while by the rotational motion of bearing is converted into the straight of tooth bar leading screw using ball
Line is moved, it is achieved that itself roll regulating system gap by ball, solves the non-adjustable of threaded connection in prior art
The problem of section.
Description of the drawings
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of electric steering mechanism provided in an embodiment of the present invention；
Fig. 2 is the axonometric drawing of electric steering mechanism provided in an embodiment of the present invention；
Front views of the Fig. 3 for bearing；
Fig. 4 is the front view of the first inner ring；
Front views of the Fig. 5 for elastomeric pad；
Side views of the Fig. 6 for elastomeric pad.
Description of reference numerals：
100- the first inner ring 110- belt wheel 120- flanges the first keyways of 130-
200- tooth bar leading screw 210- bearing inner races 211- the second keyway 212- male cone (strobilus masculinus)s
220- outer rings 300- elastomeric pads 310- opening 320- inner conical surfaces
400- ball 500- key 600- Timing Belt 700- motors
710- motor shafts 800- compresses plug screw 900- housings
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Fig. 1 is the structural representation of electric steering mechanism provided in an embodiment of the present invention, and Fig. 2 is provided for the embodiment of the present invention
Electric steering mechanism axonometric drawing, Fig. 3 for bearing front view, Fig. 4 is the front view of the first inner ring, and Fig. 5 is elastomeric pad
Front view, Fig. 6 for elastomeric pad side view.
Referring to Fig. 1 and Fig. 6, a kind of electric steering mechanism is embodiments provided, including housing 900, electricity
Machine 700, Timing Belt 600 and tooth bar leading screw 200, motor 700 are arranged on housing 900, and Timing Belt 600 is arranged on motor 700
On motor shaft 710, one end of tooth bar leading screw 200 is rotatably arranged on housing 900, and the other end of tooth bar leading screw 200 is located in together
In step band 600, wherein, the electric steering mechanism also includes：Ball 400, elastic washer, bearing, the first inner ring 100 and belt wheel
110；Bearing and the first inner ring 100 are rotated and are set on tooth bar leading screw 200, and the outer ring 220 of bearing is fixedly installed on housing 900
On, elastic washer is fastened between bearing and the first inner ring 100；Flange 120 is provided with first inner ring 100；First inner ring 100
Be provided with slot rolling with tooth bar leading screw 200 in the one side coordinated on bearing inner race 210, ball 400 is rolled and is arranged in slot rolling；
Belt wheel 110 is fixedly installed on flange 120, and Timing Belt 600 is rolled with belt wheel 110 and is connected.
In its actual application, Timing Belt 600 passes through motor shaft to electric steering mechanism provided in an embodiment of the present invention
710 driving rotates, and band 110 synchronous axial system of movable belt pulley, as belt wheel 110 is fixed on the first inner ring 100, therefore first
Also there is synchronous axial system in inner ring 100, and be brought into close contact due to the first inner ring 100, elastomeric pad 300 and bearing successively, so three
Person passes through frictional force synchronous axial system；The mating surface of the first inner ring 100 and bearing inner race 210 and tooth bar leading screw 200 has abandoned tradition
Screw-driven in technology, but employ ball 400 and connect, meanwhile, set between the first inner ring 100 and bearing inner race 210
Elastomeric pad 300 is put, therefore in the electric steering mechanism running, if ball 400 weares and teares, has made ball 400 and tooth
Gap is produced between bar leading screw 200 or slot rolling, and elastomeric pad 300 can be made in the first inner ring 100 and bearing by self-deformation
Circle 210 is compressed automatically again, and then the thrust can make ball 400 be adjacent to again slot rolling or tooth bar leading screw 200, eliminate system
Clamping stagnation and noise in system running, it is achieved that system can be with automatic regulating system gap.
It should be noted that with reference to Fig. 5 and Fig. 6, being set on tooth bar leading screw 200 for the ease of elastomeric pad 300, and protect
Card itself has certain elastic deformation, can be provided with opening 310 on elastic washer.
Further, referring to figs. 1 to Fig. 4, the electric steering mechanism also includes key 500, is provided with the first inner ring 100
One key, 500 groove 130, is provided with 500 groove 211 of the second key, 500 groove 130 of the first key and the second key 500 on second bearing inner ring 210
The aligned in position of groove 211 is arranged, and key 500 is fastened in 500 groove 211 of 500 groove 130 of the first key and the second key, such that it is able to enter one
Synchronicity that first inner ring 100 and bearing inner race 210 rotate ensure that to step.
Further, the quantity of 500 groove 211 of 500 groove 130 of the first key and the second key is two respectively, and two the first keys
500 grooves 130 are separately positioned on relative two sides on the first inner ring 100, and two 500 grooves 211 of the second key are separately positioned on bearing
Relative two sides on inner ring 210, to strengthen the first inner ring 100 and the intensity during bearing synchronous axial system, while ensure axle
Uniformity to power transmission.
Further, key 500 on the axial direction of tooth bar leading screw 200 with 500 groove 130 of the first key and 500 groove of the second key
There is gap between 211, so as to ensure that the first inner ring 100 and bearing carry out micro movement in the axial direction, so as to realize
The purpose of automatic regulating gap.
Further, with reference to Fig. 3 to Fig. 6, in order to ensure that elastomeric pad 300 can be with the first inner ring 100 and bearing inner race
210 are brought into close contact, and are provided with inner conical surface 320 on the two sides of elastic washer, on the first inner ring 100 and bearing inner race 210 on
The male cone (strobilus masculinus) 212 coordinated with inner conical surface 320 is provided with the one side that elastic washer coordinates；Further, since inner conical surface 320 and outer cone
Active force at 212 cooperation of face perpendicular to inner conical surface 320 or male cone (strobilus masculinus) 212, therefore in ball 400 and tooth bar leading screw 200 or slot rolling
When there is gap at cooperation, elastomeric pad 300 can be subject to the extruding of the first inner ring 100 or bearing inner race 210 and contraction distortion, enter
And the active force perpendicular to inner conical surface 320 or male cone (strobilus masculinus) 212 can be applied on ball 400, such that it is able to ball 400 is pressed on
On tooth bar leading screw 200 or slot rolling, it is achieved that system repairs the purpose in gap automatically.
It is understood that with reference to Fig. 1, the internal diameter of the internal diameter and bearing inner race 210 of the first inner ring 100 is more than tooth bar leading screw
200 external diameter, to prevent tooth bar leading screw 200 and the first inner ring 100 and bearing inner race 210 from producing friction, while can ensure that rolling
Pearl 400 is subject to thrust on the axial direction perpendicular to tooth bar leading screw 200, to ensure that system is closely run.
Further, with reference to Fig. 1, the electric steering mechanism also includes compressing plug screw 800, compresses plug screw 800 and is fixedly installed
On the outer ring 220 of bearing, such that it is able to bearing is fastened on housing 900, and then system can be realized the rotation of bearing
Linear motion of the conversion of motion for tooth bar leading screw 200.
Electric steering mechanism provided in an embodiment of the present invention, by arranging elastomeric pad, such that it is able to pass through elastomeric pad
Self-deformation realize the automatic reparation of system lash, while by the rotational motion of bearing is converted into tooth bar silk using ball
The linear motion of thick stick, it is achieved that by itself rolling regulating system gap of ball, solve threaded connection in prior art
Uncontrollable problem.
Construction, feature and the action effect of the present invention, above institute are described in detail according to the embodiment shown in schema above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, every according to structure of the invention
Want made change, or be revised as the Equivalent embodiments of equivalent variations, when still covered with diagram without departing from description spiritual,
All should be within the scope of the present invention.
Claims (8)
1. a kind of electric steering mechanism, including housing, motor, Timing Belt and tooth bar leading screw, the motor is arranged on housing, institute
State Timing Belt to be arranged on the motor shaft of the motor, one end of the tooth bar leading screw is rotatably arranged on the housing, described
The other end of tooth bar leading screw is located in the Timing Belt, it is characterised in that the electric steering mechanism also includes：
Ball, elastic washer, bearing and the first inner ring, the bearing and first inner ring are rotated and are set in the tooth bar leading screw
On, the outer ring of the bearing is fixedly installed on the housing, and the elastic washer is fastened in the bearing and described first
Between circle；Flange is provided with first inner ring；
Slot rolling is provided with the one side coordinated with the tooth bar leading screw on the inner ring of first inner ring and the bearing, described
Ball is rolled and is arranged in the slot rolling；
Belt wheel, the belt wheel are fixedly installed on the flange, and the Timing Belt is rolled with the belt wheel and is connected.
2. electric steering mechanism according to claim 1, it is characterised in that also include key, is arranged on first inner ring
There is the first keyway, on the second bearing inner ring, be provided with the second keyway, the position of first keyway and second keyway
Alignment is arranged, and the key is fastened in first keyway and second keyway.
3. electric steering mechanism according to claim 2, it is characterised in that first keyway and second keyway
Quantity is two respectively, and two first keyways are separately positioned on relative two sides on first inner ring, described two
Individual second keyway is separately positioned on relative two sides on the inner ring of the bearing.
4. electric steering mechanism according to claim 3, it is characterised in that the key is in the axial direction side of the tooth bar leading screw
There is gap between first keyway and second keyway upwards.
5. electric steering mechanism according to claim 1, it is characterised in that be provided with the two sides of the elastic washer
Inner conical surface, on first inner ring and the bearing inner ring on the elastic washer coordinate one side on be provided with described
The male cone (strobilus masculinus) that inner conical surface coordinates.
6. electric steering mechanism according to claim 1, it is characterised in that the internal diameter and the bearing of first inner ring
Inner ring internal diameter more than the tooth bar leading screw external diameter.
7. electric steering mechanism according to claim 1, it is characterised in that be provided with opening on the elastic washer.
8. electric steering mechanism according to claim 1, it is characterised in that also include compressing plug screw, the compression plug screw
It is fixedly installed on the outer ring of the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062081.3A CN106494498B (en) | 2016-11-25 | 2016-11-25 | Electric steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062081.3A CN106494498B (en) | 2016-11-25 | 2016-11-25 | Electric steering mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106494498A true CN106494498A (en) | 2017-03-15 |
| CN106494498B CN106494498B (en) | 2018-11-02 |
Family
ID=58328689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611062081.3A Expired - Fee Related CN106494498B (en) | 2016-11-25 | 2016-11-25 | Electric steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106494498B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639144A (en) * | 2018-04-18 | 2018-10-12 | 奇瑞汽车股份有限公司 | A kind of electric steering column output shaft fixing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1044658A (en) * | 1962-09-21 | 1966-10-05 | Zahnradfabrik Friedrichshafen | Improvements in or relating to steering gears, particularly for motor vehicles |
| JP2010018056A (en) * | 2008-07-08 | 2010-01-28 | Mitsubishi Motors Corp | Electric power steering device |
| CN102628500A (en) * | 2012-04-19 | 2012-08-08 | 西北工业大学 | Planet roller screw mechanism capable of eliminating axial gaps |
| CN103057581A (en) * | 2011-10-24 | 2013-04-24 | 蒂森克虏伯普利斯坦有限公司 | Electromechanical motor vehicle steering device |
| CN104210539A (en) * | 2013-06-04 | 2014-12-17 | 株式会社捷太格特 | Steering device |
| CN204452574U (en) * | 2014-12-24 | 2015-07-08 | 天合汽车零部件（上海）有限公司 | A kind of belt wheel connection structure of automobile electric booster steering system |
| US20150274200A1 (en) * | 2014-03-26 | 2015-10-01 | Jtekt Corporation | Steering device |
-
2016
- 2016-11-25 CN CN201611062081.3A patent/CN106494498B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1044658A (en) * | 1962-09-21 | 1966-10-05 | Zahnradfabrik Friedrichshafen | Improvements in or relating to steering gears, particularly for motor vehicles |
| JP2010018056A (en) * | 2008-07-08 | 2010-01-28 | Mitsubishi Motors Corp | Electric power steering device |
| CN103057581A (en) * | 2011-10-24 | 2013-04-24 | 蒂森克虏伯普利斯坦有限公司 | Electromechanical motor vehicle steering device |
| CN102628500A (en) * | 2012-04-19 | 2012-08-08 | 西北工业大学 | Planet roller screw mechanism capable of eliminating axial gaps |
| CN104210539A (en) * | 2013-06-04 | 2014-12-17 | 株式会社捷太格特 | Steering device |
| US20150274200A1 (en) * | 2014-03-26 | 2015-10-01 | Jtekt Corporation | Steering device |
| CN204452574U (en) * | 2014-12-24 | 2015-07-08 | 天合汽车零部件（上海）有限公司 | A kind of belt wheel connection structure of automobile electric booster steering system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639144A (en) * | 2018-04-18 | 2018-10-12 | 奇瑞汽车股份有限公司 | A kind of electric steering column output shaft fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106494498B (en) | 2018-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 Corp.,Ltd. Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Applicant before: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |