CN106515841B - A kind of control mechanism of variable ratio steering system - Google Patents
A kind of control mechanism of variable ratio steering system Download PDFInfo
- Publication number
- CN106515841B CN106515841B CN201610944342.8A CN201610944342A CN106515841B CN 106515841 B CN106515841 B CN 106515841B CN 201610944342 A CN201610944342 A CN 201610944342A CN 106515841 B CN106515841 B CN 106515841B
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- CN
- China
- Prior art keywords
- gear
- control switch
- rack
- variable
- steering
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- 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.)
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Classifications
-
- 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
- B62D3/12—Steering gears mechanical of rack-and-pinion type
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/02—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to vehicle speed
Abstract
The invention discloses a kind of control mechanism of variable ratio steering system, including control switch, slidably control switch rack, shaft, variable-length lever, steering wheel rack, pinion frame, gear ring, sun gear, planetary gear, control cable, motor, third wheel.Sun gear is intermeshed with steering wheel rack, one end of variable-length lever is articulated on steering wheel rack, the other end and control switch connection, slidably shaft can only slide up and down in slot, third wheel is intermeshed respectively with the external gear of gear ring and control switch rack, the external gear of motor and gear ring is intermeshed, and planetary gear is intermeshed respectively with the internal gear of gear ring and sun gear.The gearratio turned round mechanism variable gear ratio transmission, steering mechanism is reduced in low speed of the achievable automobile of the present invention, increases sensitivity, and when high speed increases the gearratio of steering mechanism, reduces sensitivity, increases stability when driving；Meanwhile angular transducer is not needed to, have the advantages that at low cost.
Description
Technical field
The present invention relates to automobile steering system, more particularly to a kind of control mechanism of variable ratio steering system.
Background technology
The gearratio of the steering mechanism of automobile is typically fixed, and the steering mechanism of fixed drive ratio has structure letter
The advantages of single, at low cost.But it is different that automobile, which requires the gearratio of steering mechanism in different speed, when low speed urgency
Wish that gearratio is smaller when turning or u-turn, the flexibility of steering can be increased in this way, to be conveniently steered.And it runs at high speed
The gearratio that Shi Xiwang turns round mechanism is larger, thus will not just take a sudden turn because of slightly steering wheel rotation vehicle, so as to increase
The stability of extra bus traveling.And the steering mechanism of fixed drive ratio can not meet the two requirements simultaneously.
In order to meet flexibility and the requirement of stability simultaneously, some superior automobiles have used the steering of variable gear ratio
System, these systems of turning round are realized by the planetary gear mechanism or harmonic gear mechanism of a set of two-freedom, need to pacify
It fills driving motor and angular transducer, cost is higher.
Invention content
For the above problem existing for the steering mechanism of automobile in the prior art, the present invention provides a kind of variable gear ratio and turns
To the control mechanism of system, existing variable ratio steering to be overcome to need setting angle sensor, so as to bring high cost
The problem of.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions：
A kind of control mechanism of variable ratio steering system including control switch, control switch rack, slidably turns
Axis, variable-length lever, steering wheel rack, pinion frame, gear ring, sun gear, planetary gear, control cable, motor, mistake
Wheel；The sun gear is connect with steering wheel, and the pinion frame is connect with wheel, and the gear ring includes internal gear and external tooth
Wheel, there are two the planetary gear settings；The sun gear is intermeshed with steering wheel rack, and the rotation of sun gear drives direction
Disk rack transverse shifting, the variable-length lever are telescopic rods, and one end is articulated on steering wheel rack, the other end and control
System switch connects, and is provided with slot in the variable-length lever, slidably shaft can only slide up and down in the slot, the control
On control switch rack, the third wheel is intermeshed system switch with the external gear of gear ring and control switch rack respectively,
Control switch is by controlling cable that signal will be controlled to be sent to motor, the external gear intermeshing of motor and gear ring, planetary gear
It is intermeshed respectively with the internal gear of gear ring and sun gear, the both ends of the gear rack are hingedly connected to planetary turn
On axis.
Further, when low vehicle speeds, by will slidably shaft move down, the gearratio of steering mechanism is reduced, is increased
Add and turn round sensitivity.
Further, when the vehicle runs at a high speed, by will slidably shaft move up, increase the gearratio of steering mechanism, drop
It is low to turn round sensitivity.
Beneficial effects of the present invention are as follows：
The present invention can realize that the mechanism variable gear ratio of turning round of automobile is driven, and the transmission of steering mechanism is reduced in low speed
Than increasing the sensitivity of steering, when high speed increases the gearratio of steering mechanism, reduces sensitivity, increases stability when driving；
Meanwhile angular transducer is not needed to, have the advantages that at low cost.
Description of the drawings
Fig. 1 is the structure principle chart of the control mechanism of the variable ratio steering system of the present invention.
The structure principle chart of present invention when Fig. 2 is reducing controlling organization gearratio.
Fig. 3 is the structure principle chart of present invention when increasing control mechanism gearratio.
In figure：1- control switches, 2- control switch racks, 3- slidably shafts, 4- variable-length levers, 5- steering wheel teeth
Item, 6- pinion frames, 7- gear rings, 8- sun gears, 9- planetary gears, 10- control cables, 11- motors, 12- third wheels.
Specific embodiment
Further explanation is done to the present invention below in conjunction with the accompanying drawings.
The structure of the control mechanism of the variable ratio steering system of the present invention is as shown in Figure 1, including control switch 1, control
System switch rack 2, slidably shaft 3, variable-length lever 4, steering wheel rack 5, pinion frame 6, gear ring 7, sun gear 8,
Planetary gear 9, control cable 10, motor 11, third wheel 12.
Sun gear 8 is connect with steering wheel, and pinion frame 6 is connect with wheel, and gear ring 7 includes internal gear and external gear, row
There are two the settings of star gear 9.
Sun gear 8 is intermeshed with steering wheel rack 5, and the rotation of sun gear 8 drives 5 transverse shifting of steering wheel rack.It can
It is telescopic rod to become length lever 4, and one end is articulated on steering wheel rack 5, and the other end is connect with control switch 1.Variable length
Slot is provided in degree lever 4, slidably shaft 3 can only slide up and down in the slot.Control switch 1 is mounted on control switch tooth
On item 2.Third wheel 12 is intermeshed respectively with the external gear of gear ring 7 and control switch rack 2, and control switch 1 is by controlling cable
Control signal is sent to motor 11 by 10, and motor 11 and the external gear of gear ring 7 are intermeshed.Planetary gear 9 respectively with gear ring 7
Internal gear and sun gear 8 are intermeshed.The both ends of pinion frame 6 are hingedly connected in the shaft of planetary gear 9.
Steering wheel rack 5 is driven by the gear being mounted on steering wheel shaft.Control switch 1 is mounted on control switch rack 2.
Control switch rack 2 is driven by the gear ring 7 of planetary gear mechanism.Variable-length lever 4 is made of two bars, wherein one is inserted in
In another, two bars opposite can slide, so as to change the overall length of bar.There is slot in variable-length lever 4, slidably shaft 3
It can be slided in slot.Variable-length lever one end is connect with steering wheel rack 5, and the other end is connect with control switch 1.Sun gear 8
It is connect with steering wheel, pinion frame 6 is connect with wheel, and slidably shaft 3 can only move up and down.
The course of work of the control mechanism of the variable ratio steering system of the present invention is as follows：
When driver rotates clockwise steering wheel, as shown in Figure 1, steering wheel rack moves right, variable-length thick stick is driven
Bar moves to right.Because of the slidably blocking of shaft, the other end of variable-length lever pushes control to switch to the left.Control switch
Generating control signal makes motor rotate counterclockwise, so as to which gear ring be driven to rotate clockwise.At this moment sun gear drives together with gear ring
Pinion frame rotates clockwise.Gear ring drives control switch rack to move to left by third wheel simultaneously.If driver stops turning at this time
Dynamic steering wheel, then variable-length lever will no longer push away control switch to the left, control blackout, motor stalling.
Work as low vehicle speeds, need to reduce the gearratio of steering mechanism, increase is when turning round sensitivity, slidably shaft to
Lower movement, as shown in Figure 2.At this moment steering wheel rack only needs mobile with regard to control switch rack can be driven to move on a large scale on a small quantity,
So as to which motor driven gear ring be made significantly to rotate, so as to increase the corner of pinion frame, reduce the gearratio of steering mechanism, increase
Add sensitivity.
Work as high vehicle speeds, need to increase the gearratio of steering mechanism, when reducing sensitivity, slidably shaft is to moving up
It is dynamic, as shown in Figure 3.At this moment a wide range of movement of steering wheel rack can only drive control switch rack to move on a small quantity, so as to make motor
Driven gear ring rotates by a small margin, the gearratio of Jian great steering mechanism, reduces sensitivity.
In conclusion the control mechanism of the variable ratio steering system of the present invention can realize that the mechanism that turns round of automobile can
Variable ratio is driven, and the gearratio of steering mechanism is reduced in low speed, increases the sensitivity of steering, and when high speed increases steering mechanism
Gearratio, reduce sensitivity, increase stability when driving.Simultaneously it is not necessary to angular transducer, have at low cost excellent
Point.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.All essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of control mechanism of variable ratio steering system, it is characterised in that：Including control switch (1), control switch tooth
Item (2), slidably shaft (3), variable-length lever (4), steering wheel rack (5), pinion frame (6), gear ring (7), the sun
Take turns (8), planetary gear (9), control cable (10), motor (11), third wheel (12)；The sun gear (8) connect with steering wheel, institute
It states pinion frame (6) to connect with wheel, the gear ring (7) includes internal gear and external gear, and the planetary gear (9) is provided with
Two；The sun gear (8) is intermeshed with steering wheel rack (5), and the rotation of sun gear (8) drives steering wheel rack (5) horizontal
To movement, the variable-length lever (4) is telescopic rod, and one end is articulated on steering wheel rack (5), the other end and control
Switch (1) connection, be provided with slot in the variable-length lever (4), slidably shaft (3) only can in the slot on glide
It is dynamic, the control switch (1) on control switch rack (2), the third wheel (12) respectively with the external gear of gear ring (7) and
Control switch rack (2) is intermeshed, and control switchs (1) by the way that cable (10) is controlled signal will to be controlled to be sent to motor (11),
The external gear of motor (11) and gear ring (7) is intermeshed, planetary gear (9) internal gear and sun gear with gear ring (7) respectively
(8) it is intermeshed, the both ends of the pinion frame (6) are hingedly connected in the shaft of planetary gear (9).
2. a kind of control mechanism of variable ratio steering system according to claim 1, it is characterised in that：When vehicle is low
Speed when driving, by will slidably shaft (3) move down, reduces the gearratio of steering mechanism.
3. a kind of control mechanism of variable ratio steering system according to claim 1, it is characterised in that：When vehicle height
Speed when driving, by will slidably shaft (3) move up, increases the gearratio of steering mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944342.8A CN106515841B (en) | 2016-11-02 | 2016-11-02 | A kind of control mechanism of variable ratio steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944342.8A CN106515841B (en) | 2016-11-02 | 2016-11-02 | A kind of control mechanism of variable ratio steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106515841A CN106515841A (en) | 2017-03-22 |
| CN106515841B true CN106515841B (en) | 2018-06-08 |
Family
ID=58292802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610944342.8A Active CN106515841B (en) | 2016-11-02 | 2016-11-02 | A kind of control mechanism of variable ratio steering system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106515841B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407039B (en) * | 2018-02-28 | 2020-05-08 | 重庆双驰门窗有限公司 | Door leaf edge sealing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575265B2 (en) * | 2000-03-30 | 2003-06-10 | Delphi Technologies, Inc. | Linear differential assisted controlled steering |
| CN101016057A (en) * | 2006-12-12 | 2007-08-15 | 北京航空航天大学 | Variable-gear-ratio satellite gear type diverter |
| CN203766868U (en) * | 2014-04-15 | 2014-08-13 | 王世才 | Vehicle variable steering transmission ratio transmission mechanism and vehicle with same |
| CN204726500U (en) * | 2015-06-03 | 2015-10-28 | 上海汽车集团股份有限公司 | Turning rate control system and steering swivel system |
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2016
- 2016-11-02 CN CN201610944342.8A patent/CN106515841B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106515841A (en) | 2017-03-22 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191226 Address after: No. 3, Chuangye building, 1750 Shengli West Road, Yuhui District, Bengbu, Anhui Province Patentee after: Bengbu Keze Network Information Technology Co., Ltd Address before: 213022 No. 1, Wushan Road, Xinbei District, Jiangsu, Changzhou Patentee before: Changzhou Polytechnic College |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200714 Address after: 423, floor 4, block a, Xinhua future city building, No. 175, Litang Road, Changping District, Beijing 102200 Patentee after: Li Qiannan Address before: No. 3, Chuangye building, 1750 Shengli West Road, Yuhui District, Bengbu, Anhui Province Patentee before: Bengbu Keze Network Information Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200917 Address after: 201799 room 510-523, Lai Gang Road, Qingpu District, Shanghai, 510-523. Patentee after: Weimar Automobile Technology Group Co.,Ltd. Address before: 423, floor 4, block a, Xinhua future city building, No. 175, Litang Road, Changping District, Beijing 102200 Patentee before: Li Qiannan |