Parking brake disc spring return structure and drive axle

• Main Authors: ZHENG BANG'EN, YIN HAODONG, ZHANG XIAOFENG
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; AXLES FOR WHEELS OR CASTORS; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CASTORS; INCREASING WHEEL ADHESION; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLE WHEELS; VEHICLES IN GENERAL

The utility model discloses a parking brake disc spring return structure and a drive axle. The parking brake disc spring return structure comprises a first shell, a second shell, a piston, a wear-resistant component and a disc spring. The first shell and the second shell are connected together, a hydraulic oil cavity is formed between the first shell and the second shell, and the piston can move left and right in the hydraulic oil cavity. A disc spring is mounted between the piston and the second shell; and the wear-resistant part is arranged at the contact part of the disc spring and the second shell, so that the elastic force of the disc spring acts on the wear-resistant part. The disc spring is convenient to manufacture and high in reliability, the wear-resistant columns are evenly arranged on the stress face of the disc spring on the cast iron shell in the circumferential direction, the disc spring mainly acts on the wear-resistant columns, and the wear resistance of the whole stress face is improved. 本实用