CN103010284B - Steering system, vehicle chassis and engineering vehicle - Google Patents
Steering system, vehicle chassis and engineering vehicle Download PDFInfo
- Publication number
- CN103010284B CN103010284B CN201210583690.9A CN201210583690A CN103010284B CN 103010284 B CN103010284 B CN 103010284B CN 201210583690 A CN201210583690 A CN 201210583690A CN 103010284 B CN103010284 B CN 103010284B
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- steering
- shaft
- wheel
- transmission shaft
- swivel system
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Abstract
The invention provides a steering system, a vehicle chassis and an engineering vehicle. The steering system comprises a steering wheel, a universal transmission shaft, a steering gear box, a shift wheel, an axle, a master pin, a steering tie rod arm, a steering tie rod, a steering transmission shaft and a steering input shaft, wherein the steering wheel is connected to the input end of the steering gear box by the universal transmission shaft; the output end of the steering gear box is connected with the input end of the steering transmission shaft; the output end of the steering transmission shaft is connected with the input end of the steering input shaft; and the output end of the steering input shaft drives the shift wheel to rotate around the master pin. According to the invention, the steering transmission shaft is adopted to replace a steering drag link in a conventional steering system, the length of the transmission shaft is changed by extension and retraction of the transmission shaft, and shimmy of the shift wheel, which is caused by jumping of the axle, is avoided; any one initial installation position of the steering system cannot influence the maximum left and right rotating angles of the axle and the steering system is influenced by a manufacturing error and stress deformation a little; in the steering process, no dead point is generated and the steering is carried out more stably; and an oil cylinder arranged in the steering gear box an be removed and the structure is simpler.
Description
Technical field
The present invention relates to Vehicle Engineering, more specifically, relate to a kind of steering swivel system, vehicle chassis and engineering truck.
Background technology
Automobile in the process of moving, needs often to change its travel direction by the will of chaufeur, i.e. so-called motor turning.With regard to wheel car, the method realizing motor turning is, chaufeur, by a set of ad hoc mechanism, makes the wheel on automobile relative to the longitudinal axis deflection certain angle of automobile, this cover is used for changing or recovering the specialized organization of vehicle traveling direction, is exactly the steering swivel system of automobile.
Fig. 1 shows a kind of wheel steering system, comprises bearing circle 1, universal drive shaft 2, angle deflector 3, steering wheel 8, steering drop arm 5, steering drag link 6, wheel flutter and steeraxle 7.Motor turning transfer route is: chaufeur is applied on bearing circle 1, is delivered to steering wheel 8 by universal drive shaft 2 and angle deflector 3, then is applied to the track arm 17 in vehicle bridge 7 by steering drag link 6, as shown in Figure 2, thus realizes turning to of wheel flutter 4.
Fig. 2 shows a kind of structural representation turning to vehicle bridge, comprise vehicle bridge 7, track arm 17, stub 15, steering trapezoidal arm 13 and tierod 14, steering drag link 6 shown in Fig. 1 is applied on track arm 17, track arm 17 drives wheel flutter 4 to move around stub 15, realize turning to of side wheel flutter 4, steering trapezoidal arm 13 and tierod 14 can realize synchronously turning to of both sides wheel flutter 4.
Adopt and turn to form in Fig. 1 and Fig. 2, there is following shortcoming:
1) when vehicle bridge 7 is upper and lower beat time, vehicle bridge 7 one aspect wants winding board spring grasswort point or propelling rod to rotate, wheel flutter 4 needs hinge before steering drag link 6 to rotate on the other hand, therefore, same vehicle bridge needs around two different orbiting motions, when these two tracks do not overlap, will there is shimmy phenomenon in wheel flutter 4, thus cause mill tire or turn to unstable problem;
2) steering drop arm 5 initial makeup location affects the left and right hard-over of vehicle bridge, and steering drop arm initial makeup location is larger by manufacturing error effect;
3) as setting angle between steering drop arm 5 and steering drag link 6 is improper, easily occur that drive line angle is " dieback " phenomenon of zero degree;
4) for avoiding wheel flutter 4, steering drag link 6 is usually designed to curved shape, and bending drag link is yielding under strained condition, inevitably affects deflection angle.
Summary of the invention
One object of the present invention is, a kind of steering swivel system is provided, make can not cause steering-wheel flutter during axle tramp, the left and right hard-over of vehicle bridge, not by the impact of manufacturing errors, there will not be in steering procedure in " dead point ", steering procedure and can not affect deflection angle due to tension force deformation.Another object of the present invention is, provides a kind of vehicle chassis.3rd object of the present invention is, provides a kind of engineering truck.
On the one hand, the invention provides a kind of steering swivel system, comprise bearing circle, universal drive shaft, steering wheel, wheel flutter, vehicle bridge, stub, steering trapezoidal arm and tierod, described wheel flutter is connected by described stub rotationally with described vehicle bridge, described steering trapezoidal arm, tierod and described vehicle bridge composition steering trapezium, also comprise steering inner articulated shaft and turn to input shaft, described bearing circle is connected to the input end of described steering wheel by described universal drive shaft; The mouth of described steering wheel is connected with the input end of described steering inner articulated shaft; The mouth of described steering inner articulated shaft is connected with the described input end of input shaft that turns to; The described mouth of input shaft that turns to drives described wheel flutter to rotate around described stub.
The present invention adopts steering inner articulated shaft to replace steering drag link in existing steering swivel system, avoids making wheel flutter that shimmy phenomenon occurs because of axle tramp, and then avoids causing mill tire or turning to unstable problem; Owing to not adopting steering drop arm, steering swivel system is little by the impact of manufacturing errors; Owing to not being adopt steering drag link, therefore in steering procedure without " dead point ", make the work of steering swivel system more stable, it also avoid bending steering drag link and be out of shape in steering procedure and affect and turn to precision, turn to precision higher.
In technique scheme, preferably, described steering inner articulated shaft comprises the first transmission shaft, shaft and second driving shaft, and the mouth of described steering wheel is connected with the input end of described first transmission shaft and can drives described first drive axis; Described first transmission shaft can drive described shaft to rotate; Described shaft can drive described second driving shaft to rotate; The mouth of described second driving shaft is connected with the described input end of input shaft that turns to.
Like this, any initial makeup location of steering swivel system all can not affect the left and right hard-over of vehicle bridge, and by manufacturing, error effect is little; Adopt transmission shaft to carry out transmission, can not occur turning at " dead point " as the steering swivel system of steering drag link form, also there will not be steering drag link tension force deformation and affect the phenomenon of deflection angle.
In technique scheme, preferably, the mouth of described second driving shaft and described turning between the input end of input shaft pass through Flange joint.
In technique scheme, preferably, turn to described between the mouth of input shaft and described wheel flutter and pass through gear transmission.
In technique scheme, preferably, described universal drive shaft can stretch along its axis direction.
Like this, during axle tramp, transmission shaft can stretch, and thus can not cause the shimmy of wheel flutter.
In technique scheme, preferably, described second driving shaft can stretch along its axis direction.
Like this, during axle tramp, transmission shaft can stretch, and thus can not cause the shimmy of wheel flutter.
In technique scheme, preferably, the axis of the output shaft of described steering wheel and plane-parallel, the axis of described shaft and plane-parallel, described in turn to axis and the plane-parallel of input shaft.
In technique scheme, preferably, this steering swivel system also comprises power-assisted oil cylinder, one end of described power-assisted oil cylinder is fixed on the axle housing of described vehicle bridge, the other end is fixed on described steering trapezoidal arm, and the steering torque that described steering wheel can transmit according to described bearing circle controls the flexible of described power-assisted oil cylinder.
Like this, power-assisted oil cylinder can provide power-assisted in steering procedure, and power-assisted need not be provided by steering wheel, vehicle bridge is passed to by transmission shaft, avoid very thick very heavy in order to what provide assist torque to be done by transmission shaft, steering wheel only needs to be provided as the function that oil joined by power-assisted oil cylinder, and the built-in oil cylinder of steering wheel can be cancelled, simplify the structure of steering wheel, reduce productive costs.
On the other hand, present invention also offers a kind of vehicle chassis, comprise the steering swivel system in technique scheme.
Again on the one hand, present invention also offers a kind of engineering truck, comprise described steering swivel system or described vehicle chassis.
In sum, steering swivel system provided by the invention, employing steering inner articulated shaft instead of the steering drag link in conventional steering system, and when axle tramp, transmission shaft changes length by flexible, avoids the steering-wheel flutter because axle tramp causes; Any initial makeup location of the steering swivel system that steering inner articulated shaft connects all can not affect the left and right hard-over of vehicle bridge, and steering swivel system is little by the impact of manufacturing errors and stress deformation; Owing to not being steering drag link form, therefore nothing " dead point " in steering procedure, turns to more stable, reliable; Steering wheel can remove built-in oil cylinder, and structure is more simple, reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of steering swivel system in correlation technique;
Fig. 2 is a kind of structural representation turning to vehicle bridge in correlation technique;
Fig. 3 is the schematic front view of steering swivel system according to an embodiment of the invention;
Fig. 4 is the schematic top plan view of structure shown in Fig. 3;
Fig. 5 is that local structure schematic diagram is looked on the right side of structure shown in Fig. 4.
In Fig. 1 to Fig. 5, the corresponding relation between Reference numeral and parts title is:
1 bearing circle, 2 universal drive shafts, 3 jiaos of deflectors, 4 wheel flutters, 5 steering drop armes, 6 steering drag links, 7 vehicle bridge, 8 steering wheels, 9 first transmission shafts, 10 shafts, 11 second driving shafts, 12 power-assisted oil cylinders, 13 steering trapezoidal arms, 14 tierods, 15 stubs, 16 turn to input shaft, 17 track arms, 18 gears.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with drawings and Examples, the present invention will be further described.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt and be different from other modes described here and implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
As shown in Figures 3 to 5, the invention provides a kind of steering swivel system, comprise bearing circle 1, universal drive shaft 2, steering wheel 8, wheel flutter 4, vehicle bridge 7, stub 15, steering trapezoidal arm 13 and tierod 14, described wheel flutter 4 is connected by described stub 15 rotationally with described vehicle bridge 7, described steering trapezoidal arm 13, tierod 14 and described vehicle bridge 7 form steering trapezium, also comprise steering inner articulated shaft and turn to input shaft 16, described bearing circle 1 is connected to the input end of described steering wheel 8 by described universal drive shaft 2; The mouth of described steering wheel 8 is connected with the input end of described steering inner articulated shaft; The mouth of described steering inner articulated shaft is connected with the described input end of input shaft 16 that turns to; The described mouth of input shaft 16 that turns to drives described wheel flutter 4 to rotate around described stub 15.
The present invention adopts steering inner articulated shaft to replace steering drag link in existing steering swivel system, avoids making wheel flutter that shimmy phenomenon occurs because of axle tramp, and then avoids causing mill tire or turning to unstable problem; Owing to not adopting steering drop arm, steering swivel system is little by the impact of manufacturing errors; Owing to not being adopt steering drag link, therefore in steering procedure without " dead point ", make the work of steering swivel system more stable, it also avoid bending steering drag link and be out of shape in steering procedure and affect and turn to precision, turn to precision higher.
As shown in Figure 3 and Figure 4, described steering inner articulated shaft comprises the first transmission shaft 9, shaft 10 and second driving shaft 11, and the mouth of described steering wheel 8 is connected with the input end of described first transmission shaft 9 and described first transmission shaft 9 can be driven to rotate; Described first transmission shaft 9 can drive described shaft 10 to rotate; Described shaft 10 can drive described second driving shaft 11 to rotate; The mouth of described second driving shaft 11 is connected with the described input end of input shaft 16 that turns to.
Like this, any initial makeup location of steering swivel system all can not affect the left and right hard-over of vehicle bridge, and by manufacturing, error effect is little; Adopt transmission shaft to carry out transmission, " dead point " can not be occurred as the steering swivel system of steering drag link form, also there will not be steering drag link tension force deformation and affect the phenomenon of deflection angle.
As shown in Figure 4, the mouth of described second driving shaft 11 and described turning between the input end of input shaft 16 pass through Flange joint.
Like this, the track arm input form that vehicle bridge is traditional changes the form of input flange into, can realize the connection of steering inner articulated shaft and vehicle bridge.
As shown in Figure 5, turn to described between the mouth of input shaft 16 and described wheel flutter 4 and pass through gear transmission.
Like this, eliminate the track arm in conventional steering system, steering system structural is simple, and work is more stable, reliable.
In the above-described embodiments, preferably, described universal drive shaft 2 can stretch along its axis direction.
Like this, during axle tramp, transmission shaft can stretch, and thus can not cause the shimmy of wheel flutter.
Further, described second driving shaft 11 can stretch along its axis direction.
Like this, during axle tramp, transmission shaft can stretch, and thus can not cause the shimmy of wheel flutter.
As shown in Figure 3, in the above-described embodiments, preferably, the axis of the output shaft of described steering wheel 8 and plane-parallel, the axis of described shaft 10 and plane-parallel, described in turn to axis and the plane-parallel of input shaft 16.
So advantageously in the structural arrangement of transmission shaft system, improve and turn to stationarity.
As shown in Figure 4, this steering swivel system also comprises power-assisted oil cylinder 12, one end of described power-assisted oil cylinder 12 is fixed on the axle housing of described vehicle bridge 7, the other end is fixed on described steering trapezoidal arm 13, and the steering torque that described steering wheel 8 can transmit according to described bearing circle 1 controls the flexible of described power-assisted oil cylinder 12.
If need to transmit larger moment of torsion, transmission shaft needs larger cross section, and thus transmission shaft diameter is large, and Heavy Weight, is unfavorable for turning to.In steering swivel system provided by the invention, steering wheel does not provide power-assisted, and power-assisted need be provided by the power-assisted oil cylinder 12 be arranged in vehicle bridge 7, steering wheel only need provide the function of joining oil, its built-in oil cylinder can be cancelled, and this, simplifies the structure of steering wheel, reduces manufacturing cost and installation difficulty.
Steering trapezoidal arm 13 and tierod 14 can realize the interlock of left and right turn wheel, as shown in Figure 4, one end of steering trapezoidal arm 13 is connected with the wheel flutter 4 of side, the other end and tierod 14 hinged, power-assisted oil cylinder 12 moves by driving steering trapezoidal arm 13 and tierod 14, thus realizes synchronously turning to of both sides wheel flutter.
As shown in Figure 4 and Figure 5, present invention also offers a kind of vehicle chassis, comprise the steering swivel system described in above-described embodiment.
In addition, present invention also offers a kind of engineering truck, comprise the steering swivel system described in above-described embodiment or vehicle chassis.
The principle of work of steering swivel system provided by the invention is as follows:
Transmission line is turned to be: the steering torque of chaufeur is applied to bearing circle 1, bearing circle 1 is directly connected to steering wheel 8 by universal drive shaft 2, steering wheel 8 connects a shaft 10 by the first transmission shaft 9, shaft 10 is connected to by second driving shaft 11 and turns to input shaft 16, turn to input shaft 16 to drive wheel flutter 4 to rotate around stub 15, thus realize turning to vehicle bridge 7.
Universal drive shaft 2 and second driving shaft 11 scalable, in the process of moving, during axle tramp, universal drive shaft 2 and second driving shaft 11 change length by flexible, thus can not cause the swing of wheel flutter 4.
For meeting the input form of transmission shaft, traditional vehicle bridge track arm input form needs the form changing input flange into, and concrete structure as shown in Figure 4.
The inner side of wheel flutter 4 is provided with gear 18, turns to the mouth of input shaft 16 to be also provided with the gear teeth, and wheel flutter 4 is engaged with turning to the mouth of input shaft 16 by gear 18.The axis of gear 18 and the axis being parallel of stub 15.Turn to the input end of input shaft 16 to be flange, thus can be connected with second driving shaft 11.
For different steering swivel systems, the transmitting ratio between its steering wheel from wheel flutter is different, by changing gear 18 and turning to the transmitting ratio between input shaft 16 to realize.
If need to transmit larger moment of torsion, transmission shaft needs larger cross section, and thus transmission shaft diameter is large, and Heavy Weight, is unfavorable for turning to.
Therefore, in this novel steering system, steering wheel 8 does not reoffer power-assisted, and power-assisted need be provided by the power-assisted oil cylinder 12 be arranged in vehicle bridge 7.Steering wheel 8 only needs to be provided as power-assisted oil cylinder 12 and joins oily function, and its built-in oil cylinder can be cancelled, and greatly simplifies the structure of steering wheel 8, reduces manufacturing cost and installation difficulty, improves productivity effect.
To sum up, steering swivel system provided by the invention, employing steering inner articulated shaft instead of the steering drag link in conventional steering system, and when axle tramp, transmission shaft changes length by flexible, avoids the steering-wheel flutter because axle tramp causes; Any initial makeup location of the steering swivel system that steering inner articulated shaft connects all can not affect the left and right hard-over of vehicle bridge, and steering swivel system is little by the impact of manufacturing errors and stress deformation; Owing to not being steering drag link form, therefore nothing " dead point " in steering procedure, turns to more stable, reliable; Steering wheel can remove built-in oil cylinder, and structure is more simple, reduces manufacturing cost.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a steering swivel system, comprise bearing circle (1), universal drive shaft (2), steering wheel (8), wheel flutter (4), vehicle bridge (7), stub (15), steering trapezoidal arm (13) and tierod (14), described wheel flutter (4) is connected by described stub (15) rotationally with described vehicle bridge (7), described steering trapezoidal arm (13), tierod (14) and described vehicle bridge (7) composition steering trapezium, it is characterized in that, also comprise steering inner articulated shaft and turn to input shaft (16)
Described bearing circle (1) is connected to the input end of described steering wheel (8) by described universal drive shaft (2);
The mouth of described steering wheel (8) is connected with the input end of described steering inner articulated shaft;
The mouth of described steering inner articulated shaft is connected with the described input end of input shaft (16) that turns to;
The described mouth of input shaft (16) that turns to drives described wheel flutter (4) to rotate around described stub (15);
Described steering inner articulated shaft comprises the first transmission shaft (9), shaft (10) and second driving shaft (11),
The mouth of described steering wheel (8) is connected with the input end of described first transmission shaft (9) and described first transmission shaft (9) can be driven to rotate;
Described first transmission shaft (9) can drive described shaft (10) to rotate;
Described shaft (10) can drive described second driving shaft (11) to rotate;
The mouth of described second driving shaft (11) is connected with the described input end of input shaft (16) that turns to.
2. steering swivel system according to claim 1, is characterized in that, mouth and described the turning between the input end of input shaft (16) of described second driving shaft (11) pass through Flange joint.
3. steering swivel system according to claim 1, is characterized in that, described in turn between the mouth of input shaft (16) and described wheel flutter (4) and pass through gear transmission.
4. steering swivel system according to claim 1, is characterized in that, described universal drive shaft (2) can stretch along its axis direction.
5. steering swivel system according to claim 1, is characterized in that, described second driving shaft (11) can stretch along its axis direction.
6. steering swivel system according to claim 1, it is characterized in that, the axis of the output shaft of described steering wheel (8) and plane-parallel, the axis of described shaft (10) and plane-parallel, described in turn to axis and the plane-parallel of input shaft (16).
7. steering swivel system according to any one of claim 1 to 6, it is characterized in that, also comprise power-assisted oil cylinder (12), one end of described power-assisted oil cylinder (12) is fixed on the axle housing of described vehicle bridge (7), the other end is fixed on described steering trapezoidal arm (13), and the steering torque that described steering wheel (8) can transmit according to described bearing circle (1) controls the flexible of described power-assisted oil cylinder (12).
8. a vehicle chassis, is characterized in that, comprises the steering swivel system according to any one of claim 1 to 7.
9. an engineering truck, is characterized in that, comprises the steering swivel system according to any one of claim 1 to 7 or vehicle chassis according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583690.9A CN103010284B (en) | 2012-12-28 | 2012-12-28 | Steering system, vehicle chassis and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583690.9A CN103010284B (en) | 2012-12-28 | 2012-12-28 | Steering system, vehicle chassis and engineering vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103010284A CN103010284A (en) | 2013-04-03 |
| CN103010284B true CN103010284B (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210583690.9A Expired - Fee Related CN103010284B (en) | 2012-12-28 | 2012-12-28 | Steering system, vehicle chassis and engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103010284B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969252A (en) * | 2019-04-12 | 2019-07-05 | 核心驱动科技（金华）有限公司 | A kind of steer drive and automobile |
| CN110126910A (en) * | 2019-06-28 | 2019-08-16 | 康趣智能家居江苏有限公司 | A kind of steering system and the electric vehicle with this steering system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373717A (en) * | 1999-07-27 | 2002-10-09 | 美国格若沃责任有限公司 | Device for improving steerability of driven axles |
| CN1966330A (en) * | 2005-11-18 | 2007-05-23 | 比亚迪股份有限公司 | Steering device of automobile electronic steering system |
| JP2007314091A (en) * | 2006-05-26 | 2007-12-06 | Kobelco Cranes Co Ltd | Mechanical steering device of working vehicle |
| CN201272245Y (en) * | 2008-07-04 | 2009-07-15 | 闫峰 | Small-sized vehicle chassis |
| CN201419727Y (en) * | 2009-05-19 | 2010-03-10 | 中国重汽集团济南动力有限公司 | Front axle of automobile |
| CN201626473U (en) * | 2009-12-22 | 2010-11-10 | 陈红旗 | Steering device of small-sized four-wheel tractor |
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2012
- 2012-12-28 CN CN201210583690.9A patent/CN103010284B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373717A (en) * | 1999-07-27 | 2002-10-09 | 美国格若沃责任有限公司 | Device for improving steerability of driven axles |
| CN1966330A (en) * | 2005-11-18 | 2007-05-23 | 比亚迪股份有限公司 | Steering device of automobile electronic steering system |
| JP2007314091A (en) * | 2006-05-26 | 2007-12-06 | Kobelco Cranes Co Ltd | Mechanical steering device of working vehicle |
| CN201272245Y (en) * | 2008-07-04 | 2009-07-15 | 闫峰 | Small-sized vehicle chassis |
| CN201419727Y (en) * | 2009-05-19 | 2010-03-10 | 中国重汽集团济南动力有限公司 | Front axle of automobile |
| CN201626473U (en) * | 2009-12-22 | 2010-11-10 | 陈红旗 | Steering device of small-sized four-wheel tractor |
Non-Patent Citations (1)
| Title |
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| 刘智婷.汽车基本构造.《汽车知识与文化》.2012, * |
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| CN103010284A (en) | 2013-04-03 |
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