The invention discloses a hilly and mountainous tractor with an adjustable attitude and a leveling method. The hilly and mountainous tractor with the adjustable attitude comprises a rear drive axle attitude leveling system, a front drive axle attitude leveling system and an electro-hydraulic control system for controlling the attitude angle of the rear drive axle attitude leveling system. The attitude of a rear drive axle is actively leveled through the electro-hydraulic control system, the attitude of the front drive axle is subjected to follow-up leveling along with the attitude of the reardrive axle and an actual ground situation, and compared with the prior art, by using the tractor and the method of the invention, the attitude of the front drive axle does not need to be independentlycontrolled any more, control elements can be reduced, and a control strategy and a control mode are simpler; and the self-adaptive adjustment mode combined with the road surface condition can be moresuitable for the working condition with variable terrains such as hills and mountains; and a front driving wheel is guaranteed to be perpendicular to the horizontal plane all the time through a parallel four-bar mechanism so that the front driving wheel has high pressure on the ground when working on a slope, a large ground adhesive force is guaranteed, and the stability of running on hills and mountains is improved.
本发明公开了一种姿态可调平的丘陵山地拖拉机及调平方法,包括后驱动桥姿态调平系统、前驱动桥姿态调平系统以及控制后驱动桥姿态调平系统的姿态角度的电液控制系统;通过电液控制系统对后驱动桥的姿态进行主动调平,而前驱动桥的姿态是跟随后驱动桥的姿态以及地面实际情况进行随动调平,与现有技术中相比,前驱动桥的姿态不再需要单独控制,不仅可以减少控制元件,而且控制策略、控制方式更加简单,此种结合路面情况进行的自适应调节方式,可以更适用于丘陵山地此种地形多变的工况;并且通过平行四杆机构来保证前驱动轮始终与水平面垂直,使前驱动轮在斜坡上工作时对地面有一个较高的压力,保证地面附着力较大,提高在丘陵山地上行驶的稳定性。
Hilly and mountainous tractor with adjustable attitude and leveling method
一种姿态可调平的丘陵山地拖拉机及调平方法
2021-02-12
Patent
Electronic Resource
Chinese
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