The invention relates to a manual opening device of a roller brake of a crane hoisting mechanism. The manual opening device comprises a roller, wherein the roller is provided with a fixed plate; the right side surface of the fixed plate is provided with connecting plates; the connecting plates are connected with a U-shaped bracket; the side walls of the U-shaped bracket are embedded with spring brackets; each spring bracket is connected with an adjusting rod; the outer wall of each adjusting rod is sleeved with a nut; a stop piece and a spring are arranged in each spring bracket; each spring is connected with a brake shoe; the middle part of the fixed plate is connected with a cam shaft bracket; a cam shaft is embedded in the cam shaft bracket; a spline tooth is arranged at one end of the cam shaft; the left part of the cam shaft is connected with a brake arm; a tooth ring is arranged at the left part of the brake arm, and is provided with inner teeth, outer teeth and a ball groove; the upper part of the brake arm is connected with a worm rod; a connecting hole is formed in the right part of the brake arm; the brake arm is connected with a fixed rod; the right part of the cam shaft is sleeved with a cam; and the outer wall of the right end of the cam shaft is sleeved with a wear resisting sleeve. The manual opening device has the advantages of simple structure, low operation cost, wide application and safe braking.
Manual opening device of roller brake of crane hoisting mechanism
2016-02-24
Patent
Elektronische Ressource
Englisch
IPC: | B66D Haspeln , CAPSTANS |
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