The invention belongs to the technical field of hoisting of hydraulic supports of coal mining devices, and particularly relates to a special lifting hook of a mining hydraulic support. According to the specific technical scheme, in the lifting hook of the hydraulic support, the rear end of a cargo boom is supported by a telescopic vertical rod; the position, in the horizontal direction, of a boom head can be adjusted through the telescopic vertical rod; the boom head is arranged at the front end of the cargo boom; a main pulley is arranged in the boom head; an auxiliary pulley is arranged in the lifting hook; the main pulley and the auxiliary pulley are connected through a steel wire rope; the lifting hook is driven by the steel wire rope to do up-down reciprocating motion; a lifting hook baffle is hinged to the boom head through a pin shaft; a first bent plate is arranged on the cargo boom and is overall in an L shape; the upper end of the first bent plate is fixed to the cargo boom; a first opening allowing the lifting hook baffle to enter is formed between the lower end of the first bent plate and the cargo boom; a first through hole is formed in the first bent plate; a first locking device for locating the lifting hook baffle is arranged in the first through hole in a penetrating manner; and after the first locking device is located, the boom head cannot rotate relative to the cargo boom.
Lifting hook of hydraulic support
2015-12-09
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
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