Automatic lifting drive axle

Abstract

The invention belongs to the field of agricultural machinery, and particularly relates to an automatic lifting drive axle. The drive axle comprises a transmission device and a lifting device, wherein the transmission device transfers power to wheels of a vehicle, and drives the vehicle to run, and the lifting device controls the ground height of an axle body, so as to continuously control the ground clearance height of the drive axle of the vehicle. The drive axle can adjust a ground clearance according to operating conditions and different crop growth periods, and is large and continuous in adjustable range, and convenient and reliable in adjustment. Furthermore, the drive axle is compact in structure, large in transmission ratio and large in torque; an application range of an agricultural machine is widened; and a use ratio of the agricultural machine is increased.

Description

Technical field [0001] The invention belongs to the field of agricultural machinery, and particularly relates to an automatic lifting drive axle. Background technique [0002] At present, the machinery used for field operations is mainly tractors, but tractors used for field operations have certain defects: low ground clearance, high-stalk crops are easily damaged during field operations; generally, different application environments have different requirements for vehicle ground clearance. For example, weeding, fertilization, transplanting, and pesticide application; and different growth periods of crops have different requirements on the vehicle ground clearance, so in order to be able to complete ordinary routine operations and mid- to late-stage management operations in the field, different agricultural machinery needs to be configured, not only a large investment Moreover, the equipment utilization rate is low; Chinese invention patent ZL201110321470.4 discloses a high groun...

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Problems solved by technology

[0002] At present, tractors are mainly used for field work. However, tractors have certain defects in field work: the ground clearance is low, and high-stem crops are easily damaged during field work; generally, different application environments have different requirements for vehicle clearance. For example, weeding, fertilization, transplanting, and pesticide application, etc.; and different growth periods of crops have different requirements for vehicle clearance, so in order to be able to complete common routine operations and field management operations in the middle and late stage, different agricultural machinery needs to be configured, which not only requires a large investment Moreover, the utilization rate of equipment is low; Chinese invention patent ZL201110321470.4 discloses a high-gap vehicle drive axle, which is composed of a housing, an upper transmission box, a variable clearance box, and a lower transmission box; Clearance box can change vehicle ground clearance; however height adjustment is manual and discontinuous

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