The invention discloses a torque limiting device at a variable-amplitude fixed end of a crane. The torque limiting device comprises a mounting fixing rack, a first guide pulley and a second guide pulley, wherein a reinforced fixing plate is arranged on the mounting fixing rack, and is located between the first guide pulley and the second guide pulley; a support plate of which the outer side extends is vertically arranged on the reinforced fixing plate; a torque limiter is arranged at the end part of the support plate; and a third guide pulley is arranged on the torque limiter in a connected manner. Through the manner, the torque limiting device at the variable-amplitude fixed end of the crane, disclosed by the invention, is firm in structure; a wire rope extends to the second guide pulley through the first guide pulley, and drives the third guide pulley to rotate when penetrating through the third guide pulley, so that the torque limiter works, and generates an alarm and a parking signal when exceeding the limiting torque; the operation safety is improved; and the torque limiting device is suitable for being installed on a plurality of cranes for use.
Torque limiting device at variable-amplitude fixed end of crane
2015-04-29
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
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