AGRICULTURAL VEHICLE WITH RIDE HEIGHT ADJUSTMENT

摘要

A system and method for raising and lowering a vehicle. The system includes a four-bar linkage provided for each wheel. The four-bar linkage includes a first three linkage assembly and a second three linkages assembly. The first three linkage assembly maintains the orientation of the vehicle relative to the wheel during the lifting and lowering while the second linkage assembly provides the power to lift and lower the vehicle. Power provided by a hydraulic cylinder is pivotably coupled to the second linkage assembly. A steering assembly is provided between the four-bar linkage assembly and the wheel. The four-bar linkage vehicle lifting assembly may be provided on agricultural vehicles, construction vehicles, or any desired vehicle.

主权项

1. A vehicle comprising:
(a) a frame; (b) a wheel; (c) a leg coupled to the wheel; (d) a closed chain linkage assembly comprising:
(i) a first linkage assembly pivotably coupled to the frame at a first point and coupled to the leg at a second point;(ii) a second linkage assembly pivotably coupled to the frame at a third point and coupled to the leg at a fourth point;(iii) wherein the first point is above the third point;(iv) wherein the second point is above the fourth point;(v) wherein the second linkage extends from the first point below the first linkage, to a connection point above the first linkage, to the second point below the second linkage; and (e) a linear actuator coupled to the first linkage and to the connection point in a manner that lifts the frame relative to the wheel when the linear actuator is actuated in a first direction, and that lowers the frame relative to the wheel when the linear actuator is actuated in a second direction.