CN209096814U - A kind of trapezoidal regulating device of all-wheel steering Vehicular turn - Google Patents
A kind of trapezoidal regulating device of all-wheel steering Vehicular turn Download PDFInfo
- Publication number
- CN209096814U CN209096814U CN201821922146.1U CN201821922146U CN209096814U CN 209096814 U CN209096814 U CN 209096814U CN 201821922146 U CN201821922146 U CN 201821922146U CN 209096814 U CN209096814 U CN 209096814U
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- China
- Prior art keywords
- drag link
- tie rod
- hinged
- rod arm
- axletree
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Abstract
The utility model relates to a kind of trapezoidal regulating devices of all-wheel steering Vehicular turn, it includes diverter, and the diverter is connected with pitman arm, and the pitman arm is connected with decelerating motor, and the output shaft of the decelerating motor is connected with eccentric shaft, and transmits torque；The first drag link and the second drag link are respectively articulated on the eccentric shaft, the other end of first drag link is hinged with the first tie rod arm, and the other end of second drag link is hinged with the second tie rod arm；The other end and the first axletree of first tie rod arm are hinged, and the other end and the second axletree of second tie rod arm are hinged；The axis of first axletree and the second axletree, the first tie rod arm, the second tie rod arm, the first drag link and the second drag link collectively form steering trapezium.It is simple with structure, the easy to control and angle relation that is able to satisfy under all-wheel steering difference operating condition, great practical value.
Description
Technical field
The utility model belongs to Vehicular turn control technology field, is related to a kind of automobile-used steering trapezium adjusting side of all-wheel steering
Method and device, it can be ensured that automobile difference steering situation lower aprons meet Ackermam law, and each tire realizes pure rolling.
Background technique
Vehicle four-wheel alignment technology can make rear-wheel participate in turning to.The incorgruous deflection of front and back wheel is realized when running at a low speed, it can
Reduce minimum turning radius, the effective mobility for improving automobile；Pass through front and back wheel homodromic deflection when high speed, then convenient for by one
Lane is travelled to the lane change in another lane, improves control stability and active safety.Therefore, it will be the development side of automobile
One of to.
Whether traditional two-wheeled car of turning direction or four-wheel steering automobile, to reduce tire wear, when turning, be must assure that
The turning center of each wheel is met at a bit, so that approximate realize tire pure rolling, i.e., need to meet Ackermam when left and right wheels turn to
Law.The angle relation can be guaranteed by reasonable steering trapezium.
For four-wheel steering automobile, when high speed four-wheel steering transition is thought in low speed four-wheel steering, due to turning center
Locating axis then takes turns corner variation and will shift, so that corresponding ideal steering trapezium is also synchronized and changed.
Traditional steering trapezium cannot meet low speed and ideal angle relation when running at high speed simultaneously, cause to take turns due to that can not adjust
Tire is seriously worn.
Utility model content
The utility model is directed to above situation, proposes a kind of steering trapezium adjusting method, has structure simple, easy to control
And it is able to satisfy the angle relation under all-wheel steering difference operating condition, great practical value.
In order to achieve the above objectives, the design scheme of the utility model is: a kind of trapezoidal adjusting dress of all-wheel steering Vehicular turn
It sets, it includes diverter, and the diverter is connected with pitman arm, and the pitman arm is connected with decelerating motor, the deceleration
The output shaft of motor is connected with eccentric shaft, and transmits torque；The first drag link and the second cross have been respectively articulated on the eccentric shaft
Pull rod, the other end of first drag link are hinged with the first tie rod arm, and the other end of second drag link is hinged with second
Tie rod arm；The other end and the first axletree of first tie rod arm are hinged, the other end and the second vehicle of second tie rod arm
Wheel shaft is hinged；The axis of first axletree and the second axletree, the first tie rod arm, the second tie rod arm, the first drag link and second
Drag link collectively forms steering trapezium.
The eccentric shaft uses multi-segment structure, including top cylindrical section, the first gearratio of cycloid axle formation and the second gearratio of cycloid axle formation, described
Top cylindrical section is connected with the output shaft end of decelerating motor；First gearratio of cycloid axle formation and the second drag link are hinged；Described second
Gearratio of cycloid axle formation and the first drag link are hinged.
The phase difference of first gearratio of cycloid axle formation and the second gearratio of cycloid axle formation is 180 °.
First drag link and the second drag link use overall structure or more piece splicing structure.
The diverter is connected with steering wheel by connecting rod, and is turned to by direction dish driving diverter.
The utility model has the advantages that:
1, by using the steering trapezium regulating device of above structure can be used in wheel steering use, by using turn
To trapezium structure, it ensure that vehicle makes turning center between front and back axis when low speed turns to.Make in high speed steering
Turning center is obtained to be located at after posterior axis.And then ideal angle relation when meeting low speed and running at high speed, it effectively reduces
Abrasion when turning to tire.
2, have structure simple, the easy to control and angle relation that is able to satisfy under all-wheel steering difference operating condition is great practical
Value.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the utility model steering trapezium overall structure diagram.
Fig. 2 is the utility model drag link and eccentric axis connection main view.
Fig. 3 is the utility model eccentric shaft structure figure.
Fig. 4 is the utility model eccentric shaft top view.
Fig. 5 is movement schematic diagram when two drag link total lengths of the utility model shorten.
Fig. 6 is movement schematic diagram when two drag link total lengths of the utility model are elongated.
In figure: diverter 1, pitman arm 2, eccentric shaft 3, the first drag link 4, the first tie rod arm 5, the second drag link 6,
Two tie rod arms 7, decelerating motor 8.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
Referring to Fig. 1-6, a kind of trapezoidal regulating device of all-wheel steering Vehicular turn, it includes diverter 1, the diverter 1
It is connected with pitman arm 2, the pitman arm 2 is connected by decelerating motor 8, the output shaft and eccentric shaft 3 of the decelerating motor 8
It is connected, and transmits torque；The first drag link 4 and the second drag link 6, the first horizontal drawing have been respectively articulated on the eccentric shaft 3
The other end of bar 4 is hinged with the first tie rod arm 5, and the other end of second drag link 6 is hinged with the second tie rod arm 7；Described
The other end and the first axletree of one tie rod arm 5 are hinged, and the other end and the second axletree of second tie rod arm 7 are hinged；The
The axis of one axletree and the second axletree, the first tie rod arm 5, the second tie rod arm 7, the first drag link 4 and the second drag link 6 are total
With composition steering trapezium.By using above-mentioned steering geometry, it can realize and change by the way that steering trapezium is adjusted
Become trapezoidal angle purpose, and then ensure it is left and right rotate to when angle relation it is reasonable.Ensure that steering stability and can
By property.
Further, the eccentric shaft 3 uses multi-segment structure, including top cylindrical section 301,302 and of the first gearratio of cycloid axle formation
Second gearratio of cycloid axle formation 303, the top cylindrical section 301 are connected with the output shaft end of decelerating motor 8；First gearratio of cycloid axle formation
302 and second drag link 6 it is hinged；Second gearratio of cycloid axle formation 303 and the first drag link 4 are hinged.By using above structure
Eccentric shaft 3 can drive the first drag link and the second drag link simultaneously, and then realize the adjusting of its total length.
Further, the phase difference of first gearratio of cycloid axle formation 302 and the second gearratio of cycloid axle formation 303 is 180 °.By using
180 ° of phase difference ensure that the synchronism of the length adjustment of the first drag link 4 and the second drag link 6.
Further, first drag link 4 and the second drag link 6 use overall structure or more piece splicing structure.It is logical
The angle that can easily adjust steering trapezium using splicing structure is crossed, achievees the purpose that steering.
Further, the diverter 1 is connected with steering wheel by connecting rod, and is turned to by direction dish driving diverter 1.
Diverter 1 can be driven by steering wheel, and then decelerating motor 8 and eccentric shaft 3 are driven by diverter 1, is finally reached tune
Save the purpose of steering trapezium desired steering angle.
Embodiment 2:
Using the adjustment control method of the trapezoidal regulating device of all-wheel steering Vehicular turn described in any one, by being fixed on
Decelerating motor 8 on pitman arm 2 drives eccentric shaft 3 to rotate, and changes the first drag link 4 and second by the rotation of eccentric shaft 3
The relative position of drag link 6, and then its total length is adjusted, achieve the purpose that change steering trapezium, and then have adjusted left and right wheel
Angle relation reaches the ideal corner state adapted under different speeds, under different operating conditions.
Embodiment 3:
When turning to, driver controls steering wheel rotation, drives pitman arm 2 around diverter output shaft by diverter 1
It swings, pitman arm 2 then drives the first drag link 4 and the second drag link 6 mobile by eccentric shaft 3, and then realizes control left and right
Wheel deflection.
Embodiment 4:
When low speed, the incorgruous deflection of front and rear wheel, turning center is driven by pitman arm 2 at this time between front and back axis
Decelerating motor 8 drives eccentric shaft 3 that the total length of the first drag link 4 and the second drag link 6 is adjusted in turn, so that the two phase
To movement, position shown in the eccentric shaft turns to Fig. 5 of decelerating motor control at this time, and then shorten the first drag link 4 and the second horizontal drawing
The total length of bar 6, and then steering requirement when the first drag link 4 and the second drag link 6 being made to meet low speed；
As speed improves, the incorgruous deflection angle of rear-wheel reduces, and when reaching a certain setting speed, position in rear-wheel holding becomes
For traditional front-wheel steer, turning center at this time is located in posterior axis；When more than the speed, Xiang Tongxiang transition, in steering
The heart is located at after posterior axis；Under above situation, the total length needs of the first drag link 4 and the second drag link 6 are elongated, pass through control
Decelerating motor 8 controls eccentric shaft 3 and rotates 180 °, position shown in the eccentric shaft turns to Fig. 6 of decelerating motor control at this time, so that first
The elongation of the overall length of drag link 4 and the second drag link 6, meets steering requirement when high speed.
Steering trapezium is changed by the way that regulating mechanism is arranged at the first tie rod arm 5 and the second tie rod arm 7 using the principle
The mode of angle adjusts left and right wheels and turns to relationship.
The embodiments of the present invention is explained in detail in conjunction with attached drawing, but the utility model be not limited to it is above-mentioned
Embodiment.Technical staff can be in the innovative point and operating procedure without prejudice to the utility model, in claims
It is interior, it modifies to above-described embodiment.The protection scope of the utility model should be covered such as claims of the utility model.
Claims (5)
1. a kind of trapezoidal regulating device of all-wheel steering Vehicular turn, it is characterised in that: it includes diverter (1), the diverter
(1) it is connected with pitman arm (2), the pitman arm (2) is connected with decelerating motor (8), the output shaft of the decelerating motor (8)
It is connected with eccentric shaft (3), and transmits torque；The first drag link (4) and the second drag link have been respectively articulated on the eccentric shaft (3)
(6), the other end of first drag link (4) is hinged with the first tie rod arm (5), the other end hinge of second drag link (6)
It is connected to the second tie rod arm (7)；The other end and the first axletree of first tie rod arm (5) are hinged, second tie rod arm (7)
The other end and the second axletree it is hinged；It is the axis of first axletree and the second axletree, the first tie rod arm (5), second trapezoidal
Arm (7), the first drag link (4) and the second drag link (6) collectively form steering trapezium.
2. a kind of trapezoidal regulating device of all-wheel steering Vehicular turn according to claim 1, it is characterised in that: the bias
Axis (3) uses multi-segment structure, including top cylindrical section (301), the first gearratio of cycloid axle formation (302) and the second gearratio of cycloid axle formation (303), institute
Top cylindrical section (301) is stated to be connected with the output shaft end of decelerating motor (8)；First gearratio of cycloid axle formation (302) and the second horizontal drawing
Bar (6) is hinged；Second gearratio of cycloid axle formation (303) and the first drag link (4) are hinged.
3. a kind of trapezoidal regulating device of all-wheel steering Vehicular turn according to claim 2, it is characterised in that: described first
The phase difference of gearratio of cycloid axle formation (302) and the second gearratio of cycloid axle formation (303) is 180 °.
4. a kind of trapezoidal regulating device of all-wheel steering Vehicular turn according to claim 1, it is characterised in that: described first
Drag link (4) and the second drag link (6) use overall structure or more piece splicing structure.
5. a kind of trapezoidal regulating device of all-wheel steering Vehicular turn according to claim 1, it is characterised in that: the steering
Device (1) is connected with steering wheel by connecting rod, and is turned to by direction dish driving diverter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922146.1U CN209096814U (en) | 2018-11-21 | 2018-11-21 | A kind of trapezoidal regulating device of all-wheel steering Vehicular turn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922146.1U CN209096814U (en) | 2018-11-21 | 2018-11-21 | A kind of trapezoidal regulating device of all-wheel steering Vehicular turn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209096814U true CN209096814U (en) | 2019-07-12 |
Family
ID=67160891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821922146.1U Active CN209096814U (en) | 2018-11-21 | 2018-11-21 | A kind of trapezoidal regulating device of all-wheel steering Vehicular turn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209096814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334760A (en) * | 2018-11-21 | 2019-02-15 | 湖北汽车工业学院 | A kind of trapezoidal regulating device of all-wheel steering Vehicular turn and adjustment control method |
-
2018
- 2018-11-21 CN CN201821922146.1U patent/CN209096814U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334760A (en) * | 2018-11-21 | 2019-02-15 | 湖北汽车工业学院 | A kind of trapezoidal regulating device of all-wheel steering Vehicular turn and adjustment control method |
| CN109334760B (en) * | 2018-11-21 | 2023-10-27 | 湖北汽车工业学院 | Adjustment control method of all-wheel steering vehicle steering trapezoid adjusting device |
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