Rectangular spring interference press-in tool for clearance adjusting mechanism of pneumatic disc brake

The utility model discloses a rectangular spring interference press-in tool for a clearance adjusting mechanism of an air pressure disc brake. A circular counter bore is formed in the middle of a lower supporting sleeve; the plane thrust bearing is arranged in the lower supporting sleeve counter bore, and the lower plane of the plane thrust bearing is in contact with the bottom plane of the lower supporting sleeve counter bore; a circular counter bore is also formed in the middle of the upper supporting sleeve, the lower supporting sleeve is sleeved with the upper supporting sleeve, the counter bore plane of the upper supporting sleeve makes contact with the upper plane of the plane thrust bearing, a gap is reserved between the end face of the upper supporting sleeve and the end face of the lower supporting sleeve, and the upper supporting sleeve can rotate around the axis of the lower supporting sleeve; the pressure head and the guide sleeve are floating parts, the guide sleeve is used for pre-placing a rect