Special rear axle applied to operation in hilly paddy field

The utility model provides a special rear axle applied to operation in a hilly paddy field, which is characterized in that two half shafts are symmetrically arranged on two sides of the inner lower part of a shell of a rear axle of a tractor, and one ends of the inner sides of the two half shafts are respectively meshed with a driving gear in the rear axle of the tractor through driven gears; the outer ends of the half shafts penetrate through the shell and extend out of the extending ends of the half shafts are provided with crawler belt driving chain wheels; when the tractor is used, the driving gear is meshed with the driven gear, the driven gear drives the half shaft to rotate, the half shaft drives the track driving chain wheel to rotate, the transmission torque is increased by additionally arranging the driven gear, the half shaft and the track driving chain wheel, and the tractor body can climb over a slope well when working in a hilly paddy field. 本实用新型提供了一种应用于丘陵水田作业的专用后桥，拖拉机后桥的壳体的内下部两侧对称装有两个半轴，两个半轴的内