CN102923182B - Manual/automatic switching connector for electric steering system - Google Patents
Manual/automatic switching connector for electric steering system Download PDFInfo
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- CN102923182B CN102923182B CN201210414928.5A CN201210414928A CN102923182B CN 102923182 B CN102923182 B CN 102923182B CN 201210414928 A CN201210414928 A CN 201210414928A CN 102923182 B CN102923182 B CN 102923182B
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Abstract
The invention discloses a manual/automatic switching connector for an electric steering system. A steering wheel isolation mechanism is formed by connecting an upper gear and a lower cam fixedly; a motor shaft cam and a motor arranged on a fixing rack are in drive connection; the lower end of a steering wheel shaft passes through a fixing bracket to be inserted on the fixing rack at the bottom of the shaft; the steering wheel isolation mechanism and the motor shaft cam are arranged on the fixing rack at the bottom of the shaft; the steering wheel shaft is provided with an outer gear meshed with the upper gear; an outer ring of the lower cam is provided with teeth meshed with an annular gear of the steering shaft; and the steering wheel shaft sequentially passes through the outer gear on the steering wheel, the upper gear, the lower cam and the annular gear of the steering shaft to achieve one-way transmission of manual torque. The manual/automatic switching connector for the electric steering system can isolate the steering wheel in an auxiliary driving process, can timely switch the mode in manual intervention, and achieves basic power-assisted steering.
Description
Technical field
The present invention relates to a kind of manual/auto switching adaptor union for electric power steering, belong to control technology field.
Background technology
Electric boosting steering system due to number of parts few, arrangement convenience, the advantage such as lightweight, is widely used on automobile.Power steering system has become the standard configuration of some cars, and the whole world about has the car of half to adopt servo-steering.Along with the development of automobile assistant driving technology, to the safety of electric power steering technology, economy, dynamic property and manoevreability etc. are had higher requirement.
Chaufeur is in driving procedure, and next step controls the anglec of rotation of bearing circle and direction, is not often determined by the anglec of rotation of bearing circle, but is determined by the orientation of automobile and vehicle body angle.One is integrated to the electric power steering of auxiliary driving and manual drive, bearing circle follows steer motor motion under auxiliary driving situation.The accompany movement of bearing circle is non-essential, and controls not in time when can cause manual intervention, and wheel steering resistance produces interference to Power assisted control, and then can cause safety problem.
Traditional electric boosting steering system assisted diversion controls and manual drive combines the switching difficulty controlled, and is the difficult problem of this area always.
Therefore, be necessary to design a kind of manual/auto switching adaptor union for electric power steering being convenient to switch.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of manual/auto switching adaptor union for electric power steering, this manual/auto switching adaptor union being used for electric power steering can realize being isolated by bearing circle in auxiliary driving procedure, when manual intervention, energy switch mode in time, realizes basic servo-steering.
The technical solution of invention is as follows:
For a manual/auto switching adaptor union for electric power steering, comprise fixed support, axle bottom fixing frame, steering wheel shaft, steering shaft, bearing circle interrupter, motor shaft cam; Bearing circle interrupter to be connected with lower cam by cogging and to form; Motor shaft cam is connected with the motor-driven be arranged on fixed support;
Axle bottom fixing frame is arranged on bottom fixed support, and the upper end of described steering wheel shaft is connected with bearing circle, and the lower end of described steering wheel shaft is through described fixed support and axle bottom fixing frame; Bearing circle interrupter and motor shaft cam are installed on described axle bottom fixing frame;
Steering wheel shaft is provided with and the described external gear engaged that cogs; The outer ring of lower cam is provided with the tooth be meshed with the internally toothed annulus of steering shaft; Steering wheel shaft successively by the external gear on steering wheel shaft, cog, the internally toothed annulus of lower cam and steering shaft realizes the unidirectional delivery of manual torque; Manual torque is the moment that bearing circle produces;
The output shaft of motor is connected with motor shaft cam drive, and the outer ring of motor shaft cam is provided with the tooth be meshed with the internally toothed annulus of steering shaft; Motor realizes the transmission of electrokinetic moment successively by the internally toothed annulus of motor shaft cam and steering shaft; Described electrokinetic moment is the moment that motor produces.
Axle bottom fixing frame is also provided with multiple flower wheel, and the outer ring of flower wheel is provided with the tooth be meshed with the internally toothed annulus of steering shaft.
Described flower wheel is 4; 4 flower wheels, bearing circle interrupter and motor shaft cams are evenly distributed on described axle bottom fixing frame along the circumference of steering wheel shaft, and lower cam and motor shaft cam symmetrical relative to the axial line of steering wheel shaft.
Steering shaft upper end has an outwardly outer ring, and support bracket fastened bottom is provided with the first rotary lubrication race for clamping described outer ring;
The bottom of steering wheel shaft is the steering wheel shaft bracket for holding described axle bottom fixing frame, and steering wheel shaft bracket is provided with the second rotary lubrication race.
Axle bottom fixing frame is also connected with the fixed mount of top by servo-actuated wheel shaft, and fixing.But steering wheel shaft bracket rotates together together with steering wheel shaft, steering wheel shaft bracket and steering wheel shaft are one, and steering wheel shaft bracket and axle bottom fixing frame have relative motion.
Lower cam and motor shaft cam are the toothed oval cam in outer ring.
The internally toothed annulus of steering shaft wheel rim rotates and causes 4 to determine flower wheel servo-actuated.
Beneficial effect:
Manual/auto switching adaptor union for electric power steering of the present invention, be a kind of can by the device of bearing circle and the unidirectional isolation of electric powered steering axle.This device can realize being isolated by bearing circle in auxiliary driving procedure, and when manual intervention, energy switch mode in time, realizes basic servo-steering.
Motor drives the wheel rim (i.e. the internally toothed annulus of steering shaft) of steering shaft, and then drives steering shaft to rotate.During manual drive, steer motor can provide auxiliary force in the same way for turning to.During auxiliary driving, bearing circle can be kept apart by bearing circle isolation axle;
Assist motor and steer motor can realize combination and control.Under auxiliary driving model, assist motor realizes anthropomorphic steering operation and steer motor completes steering operation jointly.Under manual drive pattern, assist motor and steer motor complete power steering action simultaneously.
The maximum innovation of this patent is, proposes a kind of electric powered steering manual-automatic integrated connector construction, realizes Non-follow control and automatically controls to switch flexibly.This structure, by bearing circle and the steering shaft isolation being connected assist motor, makes bearing circle under auxiliary driving situation not with steer motor motion, isolate the interference that bearing circle controls steer motor.Meanwhile, when chaufeur operates bearing circle, the servo-steering switching back manual drive by the line traffic control state of auxiliary driving timely controls.Relative to the partition method of pure electronic type, this structure still can maintain basic turning function when running out of steam, thus can ensure that the safety of automobile.
Accompanying drawing explanation
Fig. 1 is entirety assembling schematic diagram of the present invention;
Fig. 2 is the constructional drawing of unitized connector of the present invention;
Fig. 3 is one of section-drawing of unitized connector structure of the present invention;
Fig. 4 is the section-drawing two of unitized connector structure of the present invention.
Label declaration: 1-is used for the manual/auto switching adaptor union of electric power steering, 2-universal-joint, 3-pipe link, 4-wheel and bogie truck, 5-electric booster system, 6-motor, 7-bearing circle.8-fixed support, 9-axle bottom fixing frame, 10-flower wheel, 11-steering wheel shaft, 12-motor shaft cam, the internally toothed annulus of 13-steering shaft, 14-bearing circle interrupter; 141-cogs, cam under 142-, 15-first rotary lubrication race, 16-second rotary lubrication race, 17-external gear, 18-bracket.
Detailed description of the invention
Below with reference to the drawings and specific embodiments, the present invention is described in further details:
Embodiment 1:
As shown in Figure 1, integrated connecting device is by being connected steering wheel shaft the transmission realizing steering swivel system with steering inner articulated shaft.Electric boosting steering system is the same with common steering boost system, and by universal-joint, [universal-joint refers to devices such as utilizing ball-type to realize the device of the axle Power output of different directions, and it is also
automobileon a very vitals.Universal-joint with
transmission shaftcombination, is called card gear.] transmit power steering, realize wheel steering by pipe link.
As Figure 2-3, the axle assembling device of bearing circle spacer assembly is half to be circular gear half be oval gear, namely be circular gear (namely cogging) above should being, below is oval gear (namely descending cam), circular gear engages with steering wheel shaft, oval gear engages with steering shaft wheel rim, and while steering shaft wheel rim direction of transfer dish axle power, isolation steering shaft wheel rim passes to the power of steering wheel shaft.
Unitized connector include be connected with bearing circle steering wheel shaft, motor, bearing circle interrupter, four flower wheels, with internally toothed annulus from universal-joint to the steering shaft be connected, for fixing fixed support, lubricate race, bracket and axle bottom fixing frame.
Adaptor union is fixed on vehicle frame by fixed support, and the centre that steering wheel shaft is positioned at adaptor union is connected with bearing circle, is positioned at fixed support center, and steering wheel shaft and steering shaft can both realize relative to support bracket fastened rotary motion.The two ends of bearing circle spacer assembly, servo-actuated wheel shaft, motor driving wheel axle connect together by axle bottom fixing frame, and corresponding axle can be rotated.Socket refers to that axle two ends are fixed by the groove of fixed mount, and axle can rotate in groove.
Bearing circle interrupter is socketed between steering shaft wheel rim and steering wheel shaft by axle bottom fixing frame two ends.The internally toothed annulus of four fixed random driving wheels and steering shaft, rotates along with the rotation of steering shaft wheel rim.Motor is moved by the internally toothed annulus of motor shaft actuated by cams steering shaft, and then drives steering shaft to rotate.
The shaft holder of bottom is held up and is connected by rotary lubrication race by steering wheel shaft bracket.
Steering wheel shaft secures steering wheel shaft gear, it is meshed with cogging on bearing circle interrupter.The lower cam of bearing circle interrupter is by the driven rotary that cogs and drive the rotation of steering shaft wheel rim (steering shaft wheel rim (i.e. the internally toothed annulus of steering shaft) drives steering shaft going down power).Under auxiliary driving situation, along with the lower cam of rotation bearing circle interrupter of steering shaft is thrown off with the gear teeth of steering shaft wheel rim, (cam and steering shaft wheel rim just part engage, when steering shaft wheel rim band moving cam proceeds to non-mesh regional, the gear teeth are thrown off), the transmission of steering shaft and steering wheel shaft being cut off (for being directly fixedly connected with between steering shaft with steering shaft wheel rim), realizing isolated controlling.
Claims (5)
1. for a manual/auto switching adaptor union for electric power steering, it is characterized in that, comprise fixed support, axle bottom fixing frame, steering wheel shaft, steering shaft, bearing circle interrupter, motor shaft cam; Bearing circle interrupter to be connected with lower cam by cogging and to form; Motor shaft cam is connected with the motor-driven be arranged on fixed support;
Axle bottom fixing frame is arranged on bottom fixed support, and the upper end of described steering wheel shaft is connected with bearing circle, and the lower end of described steering wheel shaft is through described fixed support and axle bottom fixing frame; Bearing circle interrupter and motor shaft cam are installed on described axle bottom fixing frame;
Steering wheel shaft is provided with and the described external gear engaged that cogs; The outer ring of lower cam is provided with the tooth be meshed with the internally toothed annulus of steering shaft; Steering wheel shaft successively by the external gear on steering wheel shaft, cog, the internally toothed annulus of lower cam and steering shaft realizes the unidirectional delivery of manual torque; Manual torque is the moment that bearing circle produces;
The output shaft of motor is connected with motor shaft cam drive, and the outer ring of motor shaft cam is provided with the tooth be meshed with the internally toothed annulus of steering shaft; Motor realizes the transmission of electrokinetic moment successively by the internally toothed annulus of motor shaft cam and steering shaft; Described electrokinetic moment is the moment that motor produces.
2. the manual/auto switching adaptor union for electric power steering according to claim 1, is characterized in that, axle bottom fixing frame is also provided with multiple flower wheel, and the outer ring of flower wheel is provided with the tooth be meshed with the internally toothed annulus of steering shaft.
3. the manual/auto switching adaptor union for electric power steering according to claim 2, it is characterized in that, described flower wheel is 4; 4 flower wheels, bearing circle interrupter and motor shaft cams are evenly distributed on described axle bottom fixing frame along the circumference of steering wheel shaft, and lower cam and motor shaft cam symmetrical relative to the axial line of steering wheel shaft.
4. the manual/auto switching adaptor union for electric power steering according to claim 1, it is characterized in that, steering shaft upper end has an outwardly outer ring, and support bracket fastened bottom is provided with the first rotary lubrication race for clamping described outer ring;
The bottom of steering wheel shaft is the steering wheel shaft bracket for holding described axle bottom fixing frame, and steering wheel shaft bracket is provided with the second rotary lubrication race.
5. the manual/auto switching adaptor union for electric power steering according to any one of claim 1-4, it is characterized in that, lower cam and motor shaft cam are the toothed oval cam in outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210414928.5A CN102923182B (en) | 2012-10-26 | 2012-10-26 | Manual/automatic switching connector for electric steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210414928.5A CN102923182B (en) | 2012-10-26 | 2012-10-26 | Manual/automatic switching connector for electric steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102923182A CN102923182A (en) | 2013-02-13 |
| CN102923182B true CN102923182B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210414928.5A Active CN102923182B (en) | 2012-10-26 | 2012-10-26 | Manual/automatic switching connector for electric steering system |
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| CN (1) | CN102923182B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080745B (en) * | 2016-06-30 | 2018-08-10 | 大连楼兰科技股份有限公司 | The transfer automatically and manually switched at any time |
| CN107187489A (en) * | 2017-06-19 | 2017-09-22 | 中国农业大学 | Motor driving direction disk transfer |
| CN109383608A (en) * | 2017-08-08 | 2019-02-26 | 宝沃汽车（中国）有限公司 | Transfer and rotating direction control method, device |
| CN110040194A (en) * | 2019-05-20 | 2019-07-23 | 山东洛杰斯特物流科技有限公司 | Steering wheel and omnidirectional's AGV fork truck based on ring gear transmission |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0238181A (en) * | 1988-07-29 | 1990-02-07 | Mazda Motor Corp | Electric power steering device |
| JPH0822674B2 (en) * | 1987-04-07 | 1996-03-06 | 日野自動車工業株式会社 | Electric power steering |
| CN1152518A (en) * | 1995-10-20 | 1997-06-25 | Trw乘员约束系统公司 | Joint device for steering-wheel and steering-axle of motor vehicles |
| CN1623835A (en) * | 2003-12-04 | 2005-06-08 | 丰田自动车株式会社 | Steering control apparatus |
| CN1792695A (en) * | 2004-12-21 | 2006-06-28 | 迪尔公司 | Additional steering system |
| EP1862372A1 (en) * | 2006-06-01 | 2007-12-05 | ZF-Lenksysteme GmbH | Power-assisted steering system for a vehicle |
| CN101903253A (en) * | 2007-12-14 | 2010-12-01 | 丰田自动车株式会社 | Steering apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007326415A (en) * | 2006-06-06 | 2007-12-20 | Jtekt Corp | Vehicle steering device |
-
2012
- 2012-10-26 CN CN201210414928.5A patent/CN102923182B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0822674B2 (en) * | 1987-04-07 | 1996-03-06 | 日野自動車工業株式会社 | Electric power steering |
| JPH0238181A (en) * | 1988-07-29 | 1990-02-07 | Mazda Motor Corp | Electric power steering device |
| CN1152518A (en) * | 1995-10-20 | 1997-06-25 | Trw乘员约束系统公司 | Joint device for steering-wheel and steering-axle of motor vehicles |
| CN1623835A (en) * | 2003-12-04 | 2005-06-08 | 丰田自动车株式会社 | Steering control apparatus |
| CN1792695A (en) * | 2004-12-21 | 2006-06-28 | 迪尔公司 | Additional steering system |
| EP1862372A1 (en) * | 2006-06-01 | 2007-12-05 | ZF-Lenksysteme GmbH | Power-assisted steering system for a vehicle |
| CN101903253A (en) * | 2007-12-14 | 2010-12-01 | 丰田自动车株式会社 | Steering apparatus |
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| CN102923182A (en) | 2013-02-13 |
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