What is the labor-saving differential wheel shaft assembly when manually pushing the micro tiller forward or steering at a small angle?

The company has developed a differential wheel shaft assembly that saves labor when manually driving the micro cultivator to move forward or turn at a small angle. The axle assembly includes a differential wheel shaft assembly. The differential wheel shaft assembly includes a differential wheel shaft and a connecting plate fixed with the differential wheel shaft sleeve. The connecting plate is equipped with a first clamping groove and a second clamping groove. The notch of the first clamping groove is consistent with the tangent direction when the differential wheel shaft rotates forward, The notch of the second clamping groove is consistent with the tangent direction when the differential wheel shaft rotates in reverse. The differential wheel shaft includes a cylindrical shaft segment and a differential wheel shaft sleeve assembly. The differential wheel shaft sleeve assembly includes a differential wheel shaft sleeve arranged with the differential wheel shaft sleeve and a bump arranged axially on the differential wheel shaft sleeve. The differential wheel shaft sleeve is fixedly connected with the wheel, and the cylindrical shaft segment of the differential wheel shaft is partially connected with the empty sleeve of the differential wheel shaft sleeve, The bump is clamped in the first clamping groove or the second clamping groove when the differential wheel shaft rotates.