Power shift control oil circuit and tractor

Abstract

The utility model provides a power gear shift control oil circuit and tractor, to optimize control oil circuit internal structure to a certain extent, guarantee the reliability of hydraulic control pipeline, reduce the space occupied by control oil circuit, improve the stability of tractor operation process. The utility model provides power gear shift control oil circuit, including switching mechanism, oil pipe group, front axle end cover, gear mechanism and reversing mechanism, switching mechanism includes switching valve and oil inlet, and the front axle end cover forms gear oil circuit and reversing oil circuit, and oil pipe group includes first oil pipe, second oil pipe and third oil pipe with one end intercommunication with oil inlet, and the other end of first oil pipe is connected with gear oil circuit, and the other end of second oil pipe and third oil pipe is connected with reversing oil circuit, switching valve can switch first oil pipe and oil inlet intercommunication or second oil pipe and oil inlet intercommunication or third oil pipe and oil inlet intercommunication, gear mechanism is connected with gear oil circuit, and reversing mechanism is connected with reversing oil circuit.