CN102837733B - Independent steering device - Google Patents
Independent steering device Download PDFInfo
- Publication number
- CN102837733B CN102837733B CN201210349589.7A CN201210349589A CN102837733B CN 102837733 B CN102837733 B CN 102837733B CN 201210349589 A CN201210349589 A CN 201210349589A CN 102837733 B CN102837733 B CN 102837733B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- steering
- wheel
- retarder
- big gear
- 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.)
- Expired - Fee Related
Links
- 239000003638 chemical reducing agent Substances 0.000 abstract description 6
- 244000309464 bull Species 0.000 abstract 5
- 239000000725 suspension Substances 0.000 description 12
- 230000035939 shock Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention provides an independent steering device, which comprises a steering motor, a speed reducing mechanism, a steering knuckle, an upper cross arm and a connecting rod, wherein the steering motor is used for providing power for driving a wheel to rotate; the speed reducing mechanism is used for converting power output of the steering motor; the steering knuckle is used for supporting the speed reducing mechanism and driving the wheel to turn around the axis of a main pin; the upper cross arm is connected with the steering knuckle through an upper spherical hinge; the connecting rod is used for connecting a power output end of the speed reducing mechanism with the upper cross arm; the speed reducing mechanism comprises a speed reducer, a pinion and a bull gear; the steering motor is connected with the pinion through the speed reducer; the pinion is engaged with the bull gear; the bull gear is connected with the connecting rod; a shell of the speed reducer is connected with the steering knuckle; the speed reducer and the pinion are coaxially configured and arranged with the steering motor; and the bull gear is rotatablely supported against the shell of the speed reducer or the steering knuckle and the axis of the bull gear is overlapped with the axis of the main pin.
Description
Technical field
The present invention relates to Vehicular turn technical field, particularly steer-by-wire technical field, specifically refer to a kind of independent steering assembly with large deflection angle characteristic.
Background technology
In recent years, along with the development of electric drive technology and line teach skill art, the high maneuverability elec. vehicle being integrated with in-wheel motor and steer-by-wire system has obtained great concern.The independent steering assembly that this type of vehicle adopts, can according to the requirement of ackerman angle, independently rotates each wheel, realizes original place zero turn radius, fixed point turns to and to walk crosswise etc. function, greatly expanded the manoevreability of vehicle in small space.
US Patent No. 6561397B1 discloses a kind of independent steering assembly, it comprises the upper and lower transverse arm that one end is connected with chassis, the other end is connected with turning rack, turning rack can carry out bob with upper and lower transverse arm, but can not move forward and backward or rotate, steering swivel is rotatably connected on turning rack, turning rack is also provided with steer motor and speed reduction gearing thereof, its to be connected with steering swivel by gear and transferring power to realize divertical motion.
US Patent No. 6568697B1 discloses another independent steering assembly, the steering swivel that it comprises that lower end is connected by ball pivot with lower cross arm, upper end and shock attenuation unit are rotatably connected, shock attenuation unit is fixed on chassis un-rotatably, steer motor and speed reduction gearing thereof to be arranged between shock attenuation unit and steering swivel and to be fixed in the lower end of shock attenuation unit, and its mouth is connected with steering swivel upper end and turns to transferring power.
US Patent No. 7204341B2 discloses another independent steering assembly, it comprises the stub being fixed in vehicle bridge end, by the steering swivel that bearing is rotatably connected on stub, steer motor and speed reduction gearing thereof are arranged on steering swivel, its mouth and stub affixed, the power of steer motor is by outputting on stub after speed reduction gearing, because stub is fixing not rotatable, its reactive torque promotes steering swivel and rotates.
U.S. Patent application US2007/0045036A1 discloses a kind of independent steering assembly, and it comprises and is arranged in steer motor on main pin axis and speed reduction gearing thereof, especially, is configured with constant-velocity universal joint output shaft at speed reduction gearing mouth.This independent steering assembly is applicable to multiple suspension, and flexible for installation.During for double wishbone suspension, steering swivel middle and lower part can be fixed in, constant-velocity universal joint output shaft lower end through affixed after lower cross arm protocorm pin-and-hole, or is fixed in the downside of lower cross arm, and after constant-velocity universal joint output shaft lower end is upward through lower cross arm protocorm pin-and-hole and steering swivel bottom is affixed.
In above-mentioned technical scheme, all have employed the rotary actuator exporting axis and overlap with main pin axis, as long as the component such as transverse arm, wheel does not interfere in theory, the large deflection angle scope of-35 ° ~+95 ° can be realized.But, first two technical scheme, need to carry out larger amendment to suspension, with formed one can bob but non-rotatable support with fixing steering hardware, the third technical scheme needs real stub, be only applicable to dependent suspension vehicle bridge, the 4th kind of technical scheme have employed constant-velocity universal joint output shaft, complicated structure.
Therefore, also there is the demand providing a kind of independent steering assembly, its structure is simple, little to suspension amendment, does not need real stub, is particularly suitable for adopting upper and lower ball pivot to form the double wishbone suspension of empty stub, and has large deflection angle characteristic.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming of the prior art, provide a kind of independent steering assembly, its structure is simple, little to suspension amendment, do not need real stub, be particularly suitable for adopting upper and lower ball pivot to form the double wishbone suspension of empty stub, and there is large deflection angle characteristic.
The invention provides a kind of independent steering assembly, it comprises: steer motor, for providing the power driving wheel steering; Speed reduction gearing, for changing the Power output of described steer motor; Steering swivel, for supporting described speed reduction gearing and being with motor car wheel to turn to around main pin axis; Top Crossbeam, connects described steering swivel by upper ball pivot; And connecting rod, for connecting the clutch end of described speed reduction gearing and described Top Crossbeam.
According to independent steering assembly of the present invention, described speed reduction gearing comprises retarder, miniature gears and big gear wheel, wherein, described steer motor connects described miniature gears by described retarder, described miniature gears engages described big gear wheel, described big gear wheel connects described connecting rod, the housing of described retarder is connected with described steering swivel, described retarder and described miniature gears and described steer motor arranged coaxial and layout, on the housing that described big gear wheel is supported on described retarder rotationally or described steering swivel, its axis overlaps with main pin axis.
According to independent steering assembly of the present invention, the lower end of described connecting rod and the clutch end of described speed reduction gearing affixed; And the upper end of described connecting rod and described Top Crossbeam hinged, wherein, hinge axes is perpendicular to main pin axis and intersect at the bulb center of described upper ball pivot.
According to independent steering assembly of the present invention, described independent steering assembly also comprises angular transducer, for measuring the deflection angle of wheel.
According to independent steering assembly of the present invention, when described steer motor rotates, power is delivered on described connecting rod by the clutch end of described speed reduction gearing, because described connecting rod is not rotatable by described Top Crossbeam restriction, reactive torque just drives described steering swivel band motor car wheel to turn to around main pin axis.
Therefore, can obtain a kind of independent steering assembly according to the present invention, its structure is simple, little to suspension amendment, does not need real stub, is particularly suitable for adopting upper and lower ball pivot to form the double wishbone suspension of empty stub, and has large deflection angle characteristic.
Accompanying drawing explanation
Fig. 1 is the axle survey partial schematic sectional view of the independent steering assembly involved by embodiments of the invention;
Fig. 2 is that the axle not containing steering swivel of the independent steering assembly shown in Fig. 1 surveys partial schematic sectional view.
In figure: 1 steer motor; 2,21,22,23 is speed reduction gearing, retarder, miniature gears and big gear wheel respectively; 3 Top Crossbeams; 4 connecting rods; 5 steering swivels; Ball pivot on 6; 10 wheels; A1 main pin axis; A2 hinge axes; C1 upper ball pivot bulb center.
Detailed description of the invention
In order to more clearly understand technology contents of the present invention, describe in detail especially exemplified by following examples.Should be understood that embodiment is only for illustration of the present invention, instead of limitation of the present invention.
Fig. 1 and Fig. 2 is that the axle of independent steering assembly involved by embodiments of the invention surveys partial schematic sectional view and not containing the axle survey partial schematic sectional view of steering swivel 5 respectively.See figures.1.and.2, the invention provides a kind of independent steering assembly, it comprises: steer motor 1, for providing the power driving wheel 10 to turn to; Speed reduction gearing 2, for changing the Power output of steer motor 1; Steering swivel 5, for supporting speed reduction gearing 2 and being with motor car wheel 10 to turn to around main pin axis A1; Top Crossbeam 3, connects steering swivel 5 by upper ball pivot 6; And connecting rod 4, for connecting clutch end and the Top Crossbeam 3 of speed reduction gearing 2.
Speed reduction gearing 2 comprises retarder 21, miniature gears 22 and big gear wheel 23, wherein, steer motor 1 connects miniature gears 22 by retarder 21, miniature gears 22 engages big gear wheel 23, big gear wheel 23 connects connecting rod 4, and the housing of retarder 21 is connected with steering swivel 5, retarder 21 and miniature gears 22 and steer motor 1 arranged coaxial and layout, on the housing that big gear wheel 23 is supported on retarder 21 rotationally or steering swivel 5, its axis overlaps with main pin axis A1.
Due to volume restriction, steer motor more than 1 adopts the high-speed electric expreess locomotive of 100 ~ 200W to realize, and in order to meet the requirement of cornering properties, its rotating speed must reduce.Therefore, need to mate the larger retarder 21 of transmitting ratio.Harmonic speed reducer or the attainable transmitting ratio of multistage planet retarder greatly, and can meet the requirement of layout.
Lower end and the big gear wheel 23 of connecting rod 4 are affixed, and upper end and the Top Crossbeam 3 of connecting rod 4 are hinged, and wherein, hinge axes A2 is perpendicular to main pin axis A1 and intersect at the bulb center C1 of upper ball pivot 6.
In order to realize turning to, the rotation of big gear wheel 23 must be limited to produce the moment of reaction, therefore, must be connected to when wheel 10 turns to relative to the parts do not rotated, namely on Top Crossbeam 3.During due to wheel 10 bob, the angle between Top Crossbeam 3 and steering swivel 5 also can change, and therefore, must find the axis that a relative steering swivel 5 is motionless, carry out articulated linkage 4 on Top Crossbeam 3.Cross the bulb center C1 of ball pivot 6 and the axis A2 perpendicular to main pin axis A1 can meet this requirement.
Independent steering assembly also comprises unshowned angular transducer, and it is for measuring the deflection angle of wheel 10, and after feeding back to control setup, the output of adjustment steer motor 1, accurately to realize required ackerman angle.Because big gear wheel 23 is consistent with the deflection angle scope of wheel 10, therefore, the angular transducer being arranged on the vicinity of big gear wheel 23 accurately can measure the deflection angle of wheel 10.
When steer motor 1 rotates, power is delivered in big gear wheel 23 by retarder 21 and miniature gears 22, and because big gear wheel 23 is limited not rotatable by connecting rod 4, reactive torque just drives steering swivel 5 to be with motor car wheel 10 to turn to around main pin axis A1.
As mentioned above, the independent steering assembly of the embodiment of the present invention, its structure is simple, little to suspension amendment, does not need real stub, is particularly suitable for adopting upper and lower ball pivot to form the double wishbone suspension of empty stub, and has large deflection angle characteristic.
The present invention is not limited to above-described embodiment, but cover carry out when not departing from the spirit and scope of the present invention institute change and revise.These change and amendment should not be considered to depart from the spirit and scope of the present invention, and all amendments that such as it will be apparent to those skilled in the art that all should be included within the scope of the appended claims.
Claims (3)
1. an independent steering assembly, it comprises:
Steer motor, for providing the power driving wheel steering;
Speed reduction gearing, for changing the Power output of described steer motor, this speed reduction gearing comprises retarder, miniature gears and big gear wheel, wherein:
Described steer motor connects described miniature gears by described retarder, described miniature gears engages described big gear wheel, the housing of described retarder is connected with steering swivel, described retarder and described miniature gears and described steer motor arranged coaxial and layout, on the housing that described big gear wheel is supported on described retarder rotationally or described steering swivel, its axis overlaps with main pin axis;
Steering swivel, for supporting described speed reduction gearing and being with motor car wheel to turn to around main pin axis;
It is characterized in that:
Described independent steering assembly also comprises:
Top Crossbeam, connects described steering swivel by upper ball pivot; And
Connecting rod, for connecting described big gear wheel and described Top Crossbeam, lower end and the described big gear wheel of described connecting rod are affixed; And
Upper end and the described Top Crossbeam of described connecting rod are hinged, and wherein, hinge axes is perpendicular to main pin axis and intersect at the bulb center of described upper ball pivot.
2. independent steering assembly according to claim 1, is characterized in that,
Described independent steering assembly also comprises angular transducer, for measuring the deflection angle of wheel.
3. independent steering assembly according to claim 1, is characterized in that,
When described steer motor rotates, power is delivered on described connecting rod by the clutch end of described speed reduction gearing, and because described connecting rod is not rotatable by described Top Crossbeam restriction, reactive torque just drives described steering swivel band motor car wheel to turn to around main pin axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349589.7A CN102837733B (en) | 2012-09-18 | 2012-09-18 | Independent steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349589.7A CN102837733B (en) | 2012-09-18 | 2012-09-18 | Independent steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102837733A CN102837733A (en) | 2012-12-26 |
| CN102837733B true CN102837733B (en) | 2015-05-20 |
Family
ID=47365524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210349589.7A Expired - Fee Related CN102837733B (en) | 2012-09-18 | 2012-09-18 | Independent steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102837733B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832271A (en) * | 2014-02-27 | 2014-06-04 | 浙江工业大学之江学院工业研究院 | Independent drive independent steering mechanism of electric vehicle |
| CN106335542B (en) * | 2016-09-30 | 2018-08-03 | 南京航空航天大学 | Four-wheel independent steering gear and working method |
| CN106741144A (en) * | 2016-12-23 | 2017-05-31 | 同济大学 | The Four wheel independent steering system that steering motor is placed on double wishbone suspension knuckle |
| CN106976368A (en) * | 2017-05-15 | 2017-07-25 | 厦门金龙联合汽车工业有限公司 | A kind of achievable independent suspension frame unit for turning to driving function |
| CN113524999A (en) * | 2021-09-07 | 2021-10-22 | 吉林大学 | A double wishbone suspension with integrated steering mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631711A (en) * | 2007-04-19 | 2010-01-20 | 香港中文大学 | Independent suspension steering system |
| CN201484168U (en) * | 2009-08-21 | 2010-05-26 | 山东大学 | Integrated wheel assembly with independent drive, steering, suspension and braking |
| CN201670260U (en) * | 2010-05-07 | 2010-12-15 | 深圳职业技术学院 | Independent steering device and independent suspension system |
| WO2012026301A1 (en) * | 2010-08-25 | 2012-03-01 | Ntn株式会社 | Steer-by-wire steering system |
-
2012
- 2012-09-18 CN CN201210349589.7A patent/CN102837733B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631711A (en) * | 2007-04-19 | 2010-01-20 | 香港中文大学 | Independent suspension steering system |
| CN201484168U (en) * | 2009-08-21 | 2010-05-26 | 山东大学 | Integrated wheel assembly with independent drive, steering, suspension and braking |
| CN201670260U (en) * | 2010-05-07 | 2010-12-15 | 深圳职业技术学院 | Independent steering device and independent suspension system |
| WO2012026301A1 (en) * | 2010-08-25 | 2012-03-01 | Ntn株式会社 | Steer-by-wire steering system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102837733A (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109963768B (en) | Wheel suspension having a single-wheel steering device for a motor vehicle with a steered wheel drive | |
| CN102717696B (en) | Independent driving, steering and suspending system | |
| CN102837733B (en) | Independent steering device | |
| CN201670260U (en) | Independent steering device and independent suspension system | |
| US7866434B2 (en) | Steering apparatus | |
| JP6279102B2 (en) | Integrated steering drive shaft and electric vehicle for automobile | |
| CN106585305B (en) | A kind of line traffic control independent steering based on double-crank mechanism-driving integration double wishbone suspension system | |
| CN111497938A (en) | Steering device and vehicle wheel arrangement module including the same | |
| CN106627746B (en) | The steering motor is arranged in the double-wishbone suspension arm and the wire-controlled four-wheel independent steering system | |
| CN110979464A (en) | Drive-by-wire chassis for unmanned driving field | |
| US11964531B2 (en) | Transverse wheel suspension system | |
| CN106428195A (en) | Integrated linear control independent steering system based on Macpherson suspension | |
| CN106741144A (en) | The Four wheel independent steering system that steering motor is placed on double wishbone suspension knuckle | |
| CN102785566B (en) | Integrated double-cross arm suspension wheel side electric driving system for steering wheel | |
| CN110497957B (en) | Steering device | |
| CN106627745B (en) | The steering motor is located in the lower arm of the MacPherson suspension. The wire-controlled four-wheel independent steering system | |
| CN104843058A (en) | Reverse tricycle and deflecting and steering mechanism thereof | |
| CN103085875A (en) | Integrated line control independent turning suspension frame guide mechanism system | |
| CN211764699U (en) | Steering axle of planetary gear mechanism | |
| CN203126949U (en) | Drive-by-wire independent steering system of cable transmission two-transverse-arm suspension frame | |
| KR20080058942A (en) | Power train of 5-wheel vehicle | |
| CN203172721U (en) | Integrated drive-by-wire independent steering double-trailing-arm suspension guide mechanism system | |
| CN116279765A (en) | Automatic driving full decoupling bearing platform | |
| CN204197001U (en) | Three pivot electric forklift steering swivel systems | |
| CN203172720U (en) | Integrated drive-by-wire independent steering three-connecting-rod suspension guide mechanism system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20150520 Termination date: 20210918 |