The invention relates to a self-locking device of a roller brake of a crane hoisting mechanism. The self-locking device comprises a fixed plate, wherein connecting plates are arranged on the right side surface of the upper part of the fixed plate, and are connected with a U-shaped bracket through bolts; the side walls of the U-shaped bracket are embedded with spring brackets; one end of each spring bracket is connected with a thread rod through a thread; a spring is arranged in each spring bracket; the other end of each spring is connected with a brake shoe; the outer side of the lower end of each brake shoe is welded with an adjusting sleeve; an eccentric shaft is arranged in each adjusting sleeve; an adjusting rod is arranged on the side surface of one side of each eccentric shaft; an adjusting nut is arranged at the end part of each adjusting rod; the left side surface of the middle part of the fixed plate is connected with a cam shaft bracket through screws; a cam shaft is embedded in the cam shaft bracket; the outer wall of the right part of the cam shaft is sleeved with a cam fitting the brake shoes; the outer wall of the right end of the cam shaft is sleeved with a wear resisting sleeve; and the wear resisting sleeve is connected with the U-shaped bracket through a screw. The self-locking device has the advantages of simple structure, convenience for use, good safety and reasonable design.
Self-locking device of roller brake of crane hoisting mechanism
2016-02-24
Patent
Electronic Resource
English
IPC: | B66D Haspeln , CAPSTANS |
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