Crown block brake with strengthening device

• Main Authors: ZHANG PEILIN, QIAN JINGRONG, ZHANG RIQING, QI JINJUN, LIU WEIKAI, WU YONGLIANG, CHI JIULIN
• Format: Patent
• Language: English
• Published: 20.05.2015
• Subjects: BLASTING; CAPSTANS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAULING; HEATING; HOISTING; HOISTS; LIFTING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; TACKLES, e.g. PULLEY BLOCKS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WINCHES

The utility model belongs to the technical field of crown block brakes and provides a crown block brake with a strengthening device to solve the technical problem that a braking lock nut of a crown block is frequently subjected to thread slipping and tripping and comprises a motor shaft, a brake pad arranged on the motor shaft in a sleeving mode and a braking lock nut. The crown block brake with the strengthening device is characterized by further comprising a pressure plate and a screw, the pressure plate is of a barrel-shaped structure with the diameter larger than that of the motor shaft and smaller than that of the braking lock nut, a round hole matched with the screw is formed in the center of the bottom of the pressure plate, a threaded hole matched with the screw is formed in the middle of the end of the motor shaft, and the pressure plate is arranged on the motor shaft in a sleeving mode to abut against the braking lock nut in the mode that the screw penetrates through the threaded hole. The crown block brake is simple in structure and capable of solving the technical problem that the braking lock nut of the crown block is frequently subjected to thread slipping and tripping.