FIELD: agriculture.
SUBSTANCE: wearing bucket assembly contains a wearing element in the form of a female and a male part. The female part and the male part of the wearing bucket assembly of the earthmoving machine are determined by the mutually orthogonal directions X, Y and Z, respectively. The female part comprises a cavity with the upper and the lower contact surfaces. The upper contact surface has the upper front contact portion extending rearward from the cavity bottom, and the lower contact surface has the lower front contact portion extending rearward from the cavity bottom. One of them, the upper or the lower, is concave and the other is convex, and these segments are symmetrical with respect to the central plane XZ. The upper contact surface has the upper rear contact portion extending forward from the cavity mouth, and the lower contact surface has the lower rear contact portion extending forward from the cavity mouth, one of which, the upper or the lower, is concave, and the other is convex. The upper rear contact portion is concave, and the upper front contact portion is convex, or vice versa. The upper and the lower rear contact portions are parallel to each other in any section parallel to the plane YZ. The male part has the front end with the upper and the lower contact surfaces. The upper contact surface has the upper front contact portion extending rearward from the top of the front end and the lower contact surface has the lower front contact portion extending rearward from the top of the front end; one of which, the upper or the lower, is concave, and the other is convex, and these portions are symmetrical with respect to the central plane XZ. The upper contact surface has the upper rear contact portion extending forward from the base of the front end, and the lower contact surface has the lower rear contact portion extending forward from the base of the front end. One of them, the upper or the lower, is concave, and the other is convex. The upper rear contact portion is concave, and the upper front contact portion is convex, or vice versa. The upper rear contact portion is parallel to the lower rear contact portion in any section parallel to the YZ plane.
EFFECT: wear reduction of the bucket assembly.
26 cl, 14 dwg
