CN102717675A - Steering drive axle capable of adjusting height difference - Google Patents
Steering drive axle capable of adjusting height difference Download PDFInfo
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- CN102717675A CN102717675A CN2012101034468A CN201210103446A CN102717675A CN 102717675 A CN102717675 A CN 102717675A CN 2012101034468 A CN2012101034468 A CN 2012101034468A CN 201210103446 A CN201210103446 A CN 201210103446A CN 102717675 A CN102717675 A CN 102717675A
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- steering
- drive axle
- swing arm
- top link
- axle housing
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Abstract
The invention discloses a steering drive axle capable of adjusting height difference, belonging to the field of agricultural machines. The axle comprises a drive axle housing (9), inner half axles (3), out half axles (12), lower swing arms (11), upper swing arms (5), hydraulic cylinders (4), steering tie rods (6) and steering knuckles (1). The steering drive axle is characterized in that both the left side and the right side of the drive axle housing are connected with an upper swing arm, a lower swing arm and a hydraulic cylinder in a symmetrical manner; that the upper swing arm, the lower swing arm, the steering knuckle and the drive axle housing compose a parallelogram mechanism which can swing up and down, wherein the parallelogram mechanism together with the hydraulic cylinder composes a hydraulic height-difference-adjusting device; and that the steering tie rod, a steering knuckle arm, the upper swing arm and a vehicle body compose a parallelogram mechanism which is used for steering. The steering drive axle in the invention is simple in structure. When working along contour lines on sloping fields, the axle can adjust height difference according to gradient changes so that the vehicle body keeps horizontal; and when working on horizontal planes, the axle can simultaneously stretches both left and right hydraulic cylinders to increase ground clearance, so that the trafficability of the whole vehicle is improved.
Description
Technical field
The invention belongs to agricultural mechanical field, relate to a kind of scalable discrepancy in elevation and improve the steering drive axle of ground Clearance, be applicable to the mountain area, hills.
Background technology
Mountain area, China hills accounts for area 69.4%; Existing vehicle both sides, most of mountain region wheel can not be regulated the discrepancy in elevation with the variation of the ground gradient; Turn on one's side easily during the contour line operation along the hillside fields, and can not regulate the terrain clearance on chassis, be difficult to adapt to the bigger hills of the gradient, mountain region.Though in " improved height difference apparatus for tractor driving wheel " that " a kind of hillside tractor " that Chinese patent CN1579121A announces and Chinese patent CN101041326A announce it has been carried out good improvement; But these two patents can make body gravity generation longitudinal travel when regulating the discrepancy in elevation; Be unfavorable for the operation of vehicle, the safety of vehicle is reduced.
Summary of the invention
To problem that exists in the above-mentioned technology and defective; The object of the present invention is to provide a kind of can be in the mountain area steering drive axle of the adjustable discrepancy in elevation of operation; Can be during horizontal operation in the hillside fields according to the diff-H of the size adjustment both sides wheel of grade angle, thus the car body level guaranteed, prevent rollover.
Another object of the present invention is the steering drive axle that a kind of adjustable discrepancy in elevation is provided to existing deficiency; According to walking or the ground-surface situation of operation; Length through control both sides hydraulic actuating cylinder; Adjust chassis height, thereby improved the crossing ability of steering drive axle, greatly satisfied the demand of mountain area, hills operation.
For realizing above-mentioned purpose, the present technique scheme is:
A kind of steering drive axle of the adjustable discrepancy in elevation, it comprises: drive axle housing, inner shaft, outer semiaxis, swing arm down, top link, hydraulic actuating cylinder, tierod, steering rack, steering swivel, steering knuckle bush, center cross, wheel, car body; Described drive axle housing is installed on the car body, is connected with following swing arm with the top link of the left and right sides respectively through arm shaft, and the diff in the drive axle housing is connected through universal-joint with the inner shaft of the left and right sides respectively; Described top link links to each other with steering swivel through steering knuckle bush respectively with following swing arm; Described outer semiaxis links to each other with steering swivel through bearing; Described inner shaft links to each other with outer semiaxis through universal-joint, and outer semiaxis links to each other with wheel; The tierod of the said left and right sides is connected through ball end respectively with steering swivel with steering rack; Described hydraulic actuating cylinder upper end is connected with the car body hinge, and the lower end is connected with the top link hinge; The top link of the said drive axle housing and the left and right sides, swing arm down, steering swivel, hydraulic actuating cylinder, car body are formed hydraulic pressure discrepancy in elevation control apparatus.
Described top link, following swing arm and steering swivel, drive axle housing are formed the parallel-crank mechanism that can swing up and down, and when producing the discrepancy in elevation, the wheel angle of main pin are remained unchanged.
Described tierod and track arm, top link, car body are formed a parallel-crank mechanism.
Described top link, following swing arm are being trapezium structure in shape, and be wide near an end of drive axle housing, narrow near an end of wheel.
Described top link, following swing arm are connected with steering knuckle bush through bearing, and steering swivel links to each other with steering knuckle bush through bearing.
Principle of work of the present invention:
When high right low hillside fields was along the contour line operation on a left side, the operation mountain region ratio of slope that controller is collected according to sensor sent corresponding instruction to hydraulic actuating cylinder; Control left side hydraulic actuating cylinder shrinks, and hydraulic actuating cylinder elongation in right side is so that the top link in left side and upwards swing of following swing arm; The top link on right side is swung downwards with following swing arm; And the angular dimension equal direction of swing is opposite, makes the both sides wheel produce corresponding diff-H, and the parallelogram sturcutre of forming through every side pumping arm action and drive axle housing, steering swivel guarantees that the wheel angle of main pin is constant; So that car body keeps level, and avoid rollover.
When low hillside fields is along the contour line operation on a right high left side, principle is with the above.
When on a left side high right low hillside fields along the contour line operation and when needing right steering; Since the tierod of every side all the time with the top link of homonymy, swing arm keeping parallelism down; The tierod of every side and track arm, top link, car body are formed parallel-crank mechanism simultaneously; When steering rack to the right during translation, make the above-mentioned parallel-crank mechanism in both sides produce corresponding distortion, can guarantee that steering drive axle is accomplished during horizontal operation in the hillside fields to turn to.
When high right low hillside fields is along the contour line operation and when needing left steering on a left side, principle is with the above.
When at horizontal work, in order to improve the crossing ability of steering drive axle, can be in controller input instruction in advance, control both sides hydraulic actuating cylinder is elongated to same predetermined value simultaneously, increases chassis height, improves obstacle climbing ability.
Compared with prior art, the invention has the advantages that:
1, the parallel-crank mechanism that can swing up and down that drive axle housing and top link, swing arm down, steering swivel constitute among the present invention, it is constant that the wheel angle of main pin is remained;
2, hydraulic pressure discrepancy in elevation control apparatus can be according to the discrepancy in elevation of the size adjustment both sides wheel of the scope of operation gradient among the present invention, and when making in the hillside fields along the contour line operation, car body can the maintenance level, is difficult for rollover;
3, drive axle housing both sides hydraulic actuating cylinder can be adjusted length simultaneously among the present invention, and then changes the ground Clearance, improves the carrying capacity of this steering drive axle;
4, the tierod of every side and track arm, top link, car body constitute a parallel-crank mechanism among the present invention; When wheel produces the discrepancy in elevation in both sides; Still can keep wheeled steering mode, turn to continuously and need not cut off power, guaranteed vehicle in the hillside fields safety during horizontal operation;
5, the present invention can not make body gravity produce vertical, cross travel when regulating the discrepancy in elevation, is beneficial to the operation of vehicle, and safety is increased.
Description of drawings
Fig. 1 is the front elevation of the present invention when diff-H is arranged;
Fig. 2 is the birds-eye view of the present invention when diff-H is arranged;
Fig. 3 is the structural representation of the present invention when improving the ground Clearance;
Fig. 4 is the front elevation of the present invention when improving the ground Clearance;
Fig. 5 is the structural representation that amplify the part of steering swivel part of the present invention.
Among the figure: swing arm under 1-steering swivel, 2-steering knuckle bush, 3-inner shaft, 4-hydraulic actuating cylinder, 5-top link, 6-tierod, 7-wheel, 8-steering rack, 9-drive axle housing, 10-car body, the 11-, the outer semiaxis of 12-, 13-center cross.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
Like Fig. 1, shown in Figure 2; A kind of steering drive axle of the adjustable discrepancy in elevation comprises: drive axle housing, inner shaft, outer semiaxis, swing arm down, top link, hydraulic actuating cylinder, tierod, steering rack, steering swivel, steering knuckle bush, center cross, wheel, car body; Said drive axle housing 9 is installed on the car body 10; The inner shaft of the left and right sides links to each other with drive axle housing 9 interior difies through universal-joint; The top link 5 of the left and right sides, following swing arm 11 link to each other through arm shaft with drive axle housing 9; And constitute parallel-crank mechanisms with steering swivel 1, drive axle housing 9, and outer semiaxis 12 is connected on the steering swivel 1 and through universal-joint through bearing and links to each other with inner shaft 3, and wheel 7 is fixed on the outer semiaxis 12; When needs produce the discrepancy in elevation; The hydraulic actuating cylinder 4 of one side shrinks; Drive the corresponding angle of pendulum on the top link 5 of homonymy, following swing arm 11, the inner shaft 3, simultaneously, hydraulic actuating cylinder 4 elongations of opposite side drive top link 5, swing arm 11 down, the corresponding angle of inner shaft 3 bottoms of homonymies; The angle of last pendulum must equate with the angle of the bottom, so that car body 10 maintenance levels.
State when Fig. 3, Fig. 4 increase the ground Clearance for the present invention; The steering drive axle left and right sides hydraulic actuating cylinder 4 of this adjustable discrepancy in elevation extends identical length simultaneously; Promote the top link 5 of the left and right sides, following swing arm 11, inner shaft 3 to lower swing; Prop up car body 10 simultaneously, the ground Clearance of car body 10 is increased, have good crossing ability.
The structural representation that Fig. 5 amplifies for the part of steering swivel part of the present invention, steering swivel 1 inclination angle vertically replaces angle of main pin.
In the present invention, can control hydraulic actuating cylinder 4 through the ratio of slope that the controller receiving sensor is collected and realize discrepancy in elevation adjusting, also manually modulated pressure cylinder 4 is realized discrepancy in elevation adjusting.
To be embodied as example working process of the present invention is described above; Certainly, the present invention is not limited in above embodiment, according to above-mentioned description; The related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the steering drive axle of an adjustable discrepancy in elevation comprises: drive axle housing, inner shaft, outer semiaxis, swing arm down, top link, hydraulic actuating cylinder, tierod, steering rack, steering swivel, steering knuckle bush, center cross, wheel, car body; Said drive axle housing (9) is installed on the car body (10), is connected with following swing arm (11) with the top link (5) of the left and right sides respectively through arm shaft, and the diff in the drive axle housing (9) is connected through universal-joint with the inner shaft (3) of the left and right sides respectively; Said top link (5) links to each other with steering swivel (1) through steering knuckle bush (2) respectively with following swing arm (11); Said outer semiaxis (12) links to each other with steering swivel (1) through bearing; Said inner shaft (3) links to each other with outer semiaxis (12) through universal-joint, and outer semiaxis (12) links to each other with wheel (7); The tierod of the said left and right sides (6) is connected through ball end respectively with steering swivel (1) with steering rack (8); Said hydraulic actuating cylinder (4) upper end is connected with car body (10) hinge, and the lower end is connected with top link (5) hinge; Said drive axle housing (9) is formed hydraulic pressure discrepancy in elevation control apparatus with top link (5), swing arm (11) down, steering swivel (1), hydraulic actuating cylinder (4), the car body (10) of the left and right sides.
2. the steering drive axle of a kind of adjustable discrepancy in elevation according to claim 1 is characterized in that: the parallel-crank mechanism that top link (5), following swing arm (11) and steering swivel (1), drive axle housing (9) composition can swing up and down.
3. the steering drive axle of a kind of adjustable discrepancy in elevation according to claim 1 is characterized in that: tierod (6) and track arm, top link (5), parallel-crank mechanism of car body (10) composition.
4. the steering drive axle of a kind of adjustable discrepancy in elevation according to claim 1 is characterized in that: top link (5) and following swing arm (11) are being trapezium structure in shape, and be wide near an end of drive axle housing (9), narrow near an end of wheel (7).
5. the steering drive axle of a kind of adjustable discrepancy in elevation according to claim 1, it is characterized in that: top link (5) is connected with steering knuckle bush (2) through bearing respectively with following swing arm (11), and steering swivel (1) links to each other with steering knuckle bush (2) through bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101034468A CN102717675A (en) | 2012-04-07 | 2012-04-07 | Steering drive axle capable of adjusting height difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101034468A CN102717675A (en) | 2012-04-07 | 2012-04-07 | Steering drive axle capable of adjusting height difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102717675A true CN102717675A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101034468A Pending CN102717675A (en) | 2012-04-07 | 2012-04-07 | Steering drive axle capable of adjusting height difference |
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| CN (1) | CN102717675A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139672A (en) * | 2017-05-27 | 2017-09-08 | 新疆沙漠虎特种车辆科技有限公司 | A kind of adjustable vehicle bridge device |
| CN107264623A (en) * | 2017-05-31 | 2017-10-20 | 北京航空航天大学 | A kind of steering Biodge device of high-clearance |
| CN107264622A (en) * | 2017-05-31 | 2017-10-20 | 北京航空航天大学 | A kind of steering Biodge device of normally gap |
| WO2018107351A1 (en) * | 2016-12-13 | 2018-06-21 | 祥发金属工业股份有限公司 | Zero-shear cross shaft |
| CN110274123A (en) * | 2018-03-15 | 2019-09-24 | 清华大学深圳研究生院 | Motion planning and robot control structure is peeped in a kind of micro radio |
| CN111473992A (en) * | 2020-04-17 | 2020-07-31 | 河北工程大学 | Geological survey ware for geological engineering |
| CN111716958A (en) * | 2020-05-08 | 2020-09-29 | 山东省农业机械科学研究院 | Suspension type steering drive axle, vehicle and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245272A (en) * | 1988-08-04 | 1990-02-15 | Mitsubishi Agricult Mach Co Ltd | Full hydraulic power steering device |
| JPH03186410A (en) * | 1989-12-15 | 1991-08-14 | Yorozu:Kk | Independent suspension |
| CN2806203Y (en) * | 2005-07-21 | 2006-08-16 | 陕西汽车集团有限责任公司 | Disconnected driving axle |
| CN200971032Y (en) * | 2006-06-30 | 2007-11-07 | 重庆工学院 | Front wheel independent suspension of beach buggy |
| CN101195332A (en) * | 2006-12-06 | 2008-06-11 | 北京航天发射技术研究所 | Hydro-pneumatic spring independent suspension and heavy-duty car adopting the suspension frame |
| CN202507877U (en) * | 2012-04-07 | 2012-10-31 | 西北农林科技大学 | Steering drive axle with adjustable elevation difference |
-
2012
- 2012-04-07 CN CN2012101034468A patent/CN102717675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245272A (en) * | 1988-08-04 | 1990-02-15 | Mitsubishi Agricult Mach Co Ltd | Full hydraulic power steering device |
| JPH03186410A (en) * | 1989-12-15 | 1991-08-14 | Yorozu:Kk | Independent suspension |
| CN2806203Y (en) * | 2005-07-21 | 2006-08-16 | 陕西汽车集团有限责任公司 | Disconnected driving axle |
| CN200971032Y (en) * | 2006-06-30 | 2007-11-07 | 重庆工学院 | Front wheel independent suspension of beach buggy |
| CN101195332A (en) * | 2006-12-06 | 2008-06-11 | 北京航天发射技术研究所 | Hydro-pneumatic spring independent suspension and heavy-duty car adopting the suspension frame |
| CN202507877U (en) * | 2012-04-07 | 2012-10-31 | 西北农林科技大学 | Steering drive axle with adjustable elevation difference |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018107351A1 (en) * | 2016-12-13 | 2018-06-21 | 祥发金属工业股份有限公司 | Zero-shear cross shaft |
| CN107139672A (en) * | 2017-05-27 | 2017-09-08 | 新疆沙漠虎特种车辆科技有限公司 | A kind of adjustable vehicle bridge device |
| CN107139672B (en) * | 2017-05-27 | 2023-09-26 | 北京京安长信科技有限公司 | Adjustable axle device |
| CN107264623A (en) * | 2017-05-31 | 2017-10-20 | 北京航空航天大学 | A kind of steering Biodge device of high-clearance |
| CN107264622A (en) * | 2017-05-31 | 2017-10-20 | 北京航空航天大学 | A kind of steering Biodge device of normally gap |
| CN110274123A (en) * | 2018-03-15 | 2019-09-24 | 清华大学深圳研究生院 | Motion planning and robot control structure is peeped in a kind of micro radio |
| CN111473992A (en) * | 2020-04-17 | 2020-07-31 | 河北工程大学 | Geological survey ware for geological engineering |
| CN111716958A (en) * | 2020-05-08 | 2020-09-29 | 山东省农业机械科学研究院 | Suspension type steering drive axle, vehicle and control method thereof |
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Application publication date: 20121010 |