Wheel type sliding shoe device of coal mining machine

The invention provides a wheel type sliding shoe device of a coal mining machine, which comprises a sliding shoe seat, a roller group, an upper bushing, a lower bushing, coal cleaning moldboards and a coal sweeping steel brush, the roller group is positioned in the sliding shoe seat, the left side and the right side of a roller in the roller group are respectively provided with a wheel shoulder, the upper bushing and the lower bushing are respectively positioned above and below the wheel shoulders, the coal cleaning moldboards are positioned at two ends of the sliding shoe seat, and the coal sweeping steel brush is arranged on the coal cleaning moldboards. The coal sweeping steel brushes are arranged at the two ends of the sliding shoe base in the circumferential direction. According to the sliding shoe assembly, sliding hard friction is changed into rolling friction through the rollers, the friction resistance of the sliding shoe assembly of the coal mining machine is reduced, and the traction performance of