CN202754016U - Steering mechanism for motor tractor - Google Patents
Steering mechanism for motor tractor Download PDFInfo
- Publication number
- CN202754016U CN202754016U CN201220425756.7U CN201220425756U CN202754016U CN 202754016 U CN202754016 U CN 202754016U CN 201220425756 U CN201220425756 U CN 201220425756U CN 202754016 U CN202754016 U CN 202754016U
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- China
- Prior art keywords
- steering
- steering shaft
- shaft
- gear box
- wheel
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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.)
- Expired - Lifetime
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model relates to a steering mechanism for a motor tractor. The steering mechanism for the motor tractor comprises a steering wheel, a steering shaft fixed below the steering wheel, a steering gear box, a steering rocking arm connected with the steering gear box, a steering track rod connected with the steering rocking arm, and a steering knuckle arm connected with the tail end of the steering track rod in a rotatable mode, wherein the steering gear box is fixed outside a car frame, and a transmission device used for transmitting twisting force of the steering shaft to the steering gear box is arranged between the steering shaft and the steering gear box. Due to the fact that the steering gear box is arranged outside the car frame and twisting force of the steering wheel is transmitted to the steering gear box by the steering shaft through the transmission device connected with the steering shaft and the steering gear box, the steering gear box is enabled to drive the steering rocking arm to drive the steering track rod to further drive the steering knuckle arm connected with a car wheel to sway, and thus the effect that the car wheel is driven to turn is achieved. Due to the fact that the steering gear box of the steering mechanism for the motor tractor is located outside the car frame, namely outside a cab of a car, compact and limited space in the cab is free from being occupied by the steering gear box.
Description
Technical field
The utility model relates to the special purpose vehicle technical field, is specifically related to a kind of steering hardware for tractor truck.
Background technology
At present the aircraft towing used of airport only can be on the level land, airport towing aircraft, and this kind tractor truck steering hardware is generally all-hydraulic power steering, applicable speed is travelled below 30km/h, can't reach the above high speed accurate stable of 80km/h at highway and travel.Goods and materials are loaded in traction and but low speed enters freighter aircraft in view of present tractor truck need to satisfy, and can satisfy at fast motorway operation again, therefore cab heights are adjusted, and satisfy the demand that tractor truck enters interior of aircraft thereby reduce cab heights.And operator's compartment is furnished with high requirement to steering hardware after reducing, on the one hand because space constraint has again the requirement that turns to reliability and control comfort on the other hand.Simultaneously, its steering wheel of normal traction car mechanical steering gear is positioned at ultralow operator's compartment, thereby has occupied cabin space, drives the space thereby taken taking of driver, makes troubles for driver's work traveling comfort and safety.
Summary of the invention
The utility model provides a kind of tractor truck steering hardware that does not take cab space in order to overcome the deficiency of above technology.
The technical scheme that its technical matters that overcomes the utility model adopts is:
This tractor truck steering hardware, comprise bearing circle, be fixed in bearing circle below steering shaft, steering wheel, be connected in the pitman arm of steering wheel, the track arm that is connected in the steering track rod of pitman arm and is rotationally connected with the steering track rod end, described steering wheel is fixed on frame outside, is provided with a driving device that the twisting resistance of steering shaft can be delivered to steering wheel between steering shaft and the steering wheel.
Above-mentioned driving device comprises right-angle drive device A, intermediate steering shaft and right-angle drive device B, and the two ends of described right-angle drive device A are connected to steering shaft and intermediate steering shaft, and the two ends of described right-angle drive device B are connected to steering shaft and steering wheel.Can realize turning effort is delivered on the steering wheel from steering shaft by two right-angle drive devices and an intermediate steering shaft, simple in structure, use reliable.
Above-mentioned intermediate steering shaft (4) divides two sections, is plugged in together by female splines (13), and the two ends of intermediate steering shaft are separately installed with universal-joint, and the other end of two universal-joints is individually fixed on right-angle drive device A and the right-angle drive device B.The tween drive shaft two ends are provided with universal-joint, and then the status requirement of intermediate steering shaft can reduce, also can reduce the status requirement of two right-angle drive devices, thereby the time that can reduce assembling raise the efficiency, save production cost.
The midway location of above-mentioned intermediate steering shaft is provided with for the midship mounting that supports intermediate steering shaft, and described midship mounting is fixed on the cross member of frame.Increase rigidity and intensity that midship mounting can improve intermediate steering shaft, prolong its service life, improve reliability of service.
Be provided with through hole on the above-mentioned midship mounting, rubber shaft bearing is installed in the through hole, described intermediate steering shaft passes the endoporus of rubber shaft bearing.Rubber shaft bearing can play the effect of compensation deflection, can increase the service life of intermediate steering shaft and midship mounting.
The beneficial effects of the utility model are: because steering wheel is arranged at the outside of vehicle frame, steering shaft is delivered on the steering wheel by the driving device that is connected with steering wheel with the steering shaft respectively twisting resistance with bearing circle, thereby thereby can make steering wheel drive pitman arm and then drive steering track rod and drive the effect that realization driving wheel steering occurs to swing the track arm that is connected with wheel.Because the steering box of this tractor truck steering hardware is positioned at frame outside, namely be positioned at outside the vehicle cab, thereby steering wheel can not take the finite space of the tight operator's compartment of urging, and the driver is felt comfortably cool when steering vehicle.And with respect to traditional hydraulic steering mechanism, this tractor truck steering hardware is realized based on pure mechanical system, can guarantee vehicle when running at high speed, and turns to flexibly, points to accurately.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure, 1. bearing circle 2. steering shafts 3. right-angle drive device A 4. intermediate steering shafts 5. midship mountings 6. steering wheels 7. pitman arms 8. right-angle drive device B 9. steering track rods 10. track arms 11. wheels 12. vehicle frames 13. universal-joints.
The specific embodiment
Be described further below in conjunction with 1 pair of the utility model of accompanying drawing.
This tractor truck steering hardware, comprise bearing circle 1, be fixed in bearing circle below steering shaft 2, steering wheel 6, be connected in the pitman arm 7 of steering wheel 6, the track arm 10 that is connected in the steering track rod 9 of pitman arm 7 and is rotationally connected with steering track rod 9 ends, described steering wheel 6 is arranged at vehicle frame 12 outsides, is provided with a driving device that the twisting resistance of steering shaft 2 can be delivered to steering wheel 6 between steering shaft 2 and the steering wheel 6.Thereby steering wheel rotation 1 drives steering shaft 2 and rotates, steering shaft 2 is delivered to twisting resistance on the steering box 6 by being connected the driving device that is connected with steering wheel with steering shaft 2, steering box 6 converts rotation to seesawing of the pitman arm 7 that is connected with steering box 6, pitman arm 7 drives steering track rod 9 and then drives track arm 10 swings, and track arm 10 swings can realize turning to of wheel 11.Because the steering box 6 of this tractor truck steering hardware is positioned at vehicle frame 12 outsides, namely be positioned at outside the vehicle cab, thereby steering wheel 6 can not take the finite space of the tight operator's compartment of urging, and the driver is felt comfortably cool when steering vehicle.And with respect to traditional hydraulic steering mechanism, this tractor truck steering hardware is realized based on pure mechanical system, can guarantee vehicle when running at high speed, and turns to flexibly, points to accurately.
Above-mentioned driving device comprises right-angle drive device A 3, intermediate steering shaft 4 and right-angle drive device B 8, the two ends of described right-angle drive device A 3 are connected to steering shaft 2 and intermediate steering shaft 4, and the two ends of described right-angle drive device B8 are connected to steering shaft 2 and steering wheel 6.Can realize turning effort is delivered on the steering wheel 6 from steering shaft 2 by two right-angle drive devices and an intermediate steering shaft 4, simple in structure, use reliable.
Above-mentioned intermediate steering shaft (4) divides two sections, is plugged in together by female splines (13), and the other end that the two ends of intermediate steering shaft 4 are separately installed with 13, two universal-joints 13 of universal-joint is individually fixed on right-angle drive device A 3 and the right-angle drive device B 8.The tween drive shaft two ends are provided with universal-joint 13, and then the status requirement of intermediate steering shaft 4 can reduce, also can reduce the status requirement of two right-angle drive devices, thereby the time that can reduce assembling raise the efficiency, save production cost.
The midway location of above-mentioned intermediate steering shaft 4 is provided with for the midship mounting 5 that supports intermediate steering shaft, and described midship mounting 5 is fixed on the vehicle frame 12.Increase rigidity and intensity that midship mounting 5 can improve intermediate steering shaft 4, prolong its service life, improve reliability of service.
Be provided with through hole on the above-mentioned midship mounting 5, rubber shaft bearing is installed in the through hole, described intermediate steering shaft 4 passes the endoporus of rubber shaft bearing.Rubber shaft bearing can play the effect of compensation deflection, can increase the service life of intermediate steering shaft 4 and midship mounting 5.
Claims (5)
1. tractor truck steering hardware, comprise bearing circle (1), be fixed in bearing circle below steering shaft (2), steering wheel (6), be connected in steering wheel (6) pitman arm (7), be connected in the steering track rod (9) of pitman arm (7) and be rotationally connected with the terminal track arm (10) of steering track rod (9), it is characterized in that: described steering wheel (6) is fixed on vehicle frame (12) outside, is provided with a driving device that the twisting resistance of steering shaft (2) can be delivered to steering wheel (6) between steering shaft (2) and the steering wheel (6).
2. tractor truck steering hardware according to claim 1, it is characterized in that: described driving device comprises right-angle drive device A(3), intermediate steering shaft (4) and right-angle drive device B(8), described right-angle drive device A(3) two ends are connected to steering shaft (2) and intermediate steering shaft (4), described right-angle drive device B(8) two ends be connected to steering shaft (2) and steering wheel (6).
3. tractor truck steering hardware according to claim 2, it is characterized in that: described intermediate steering shaft (4) divides two sections, be plugged in together by female splines (13), the two ends of intermediate steering shaft (4) are separately installed with universal-joint (13), and the other end of two universal-joints (13) is individually fixed in right-angle drive device A(3) and right-angle drive device B(8) on.
4. according to claim 2 or 3 described tractor truck steering hardwarees, it is characterized in that: the midway location of described intermediate steering shaft (4) is provided with for the midship mounting (5) that supports intermediate steering shaft, and described midship mounting (5) is fixed on vehicle frame (12) crossbeam.
5. tractor truck steering hardware according to claim 4, it is characterized in that: described midship mounting is provided with through hole on (5), and rubber shaft bearing is installed in the through hole, and described intermediate steering shaft (4) passes the endoporus of rubber shaft bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220425756.7U CN202754016U (en) | 2012-08-27 | 2012-08-27 | Steering mechanism for motor tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220425756.7U CN202754016U (en) | 2012-08-27 | 2012-08-27 | Steering mechanism for motor tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202754016U true CN202754016U (en) | 2013-02-27 |
Family
ID=47733211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220425756.7U Expired - Lifetime CN202754016U (en) | 2012-08-27 | 2012-08-27 | Steering mechanism for motor tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202754016U (en) |
-
2012
- 2012-08-27 CN CN201220425756.7U patent/CN202754016U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |