Oil cylinder pulley type winch

Abstract

The invention discloses an oil cylinder pulley type winch. The oil cylinder pulley type winch comprises a lazy arm assembly; a winch main body is mounted inside the lazy arm assembly, and a driving oil cylinder is mounted on the outer side of a lazy arm; the winch main body comprises a first mounting plate, a telescopic oil cylinder, a second mounting plate and two sets of pulley block mechanisms;the first mounting plate is connected with one end of the telescopic oil cylinder, the second mounting plate is connected with the other end of the telescopic oil cylinder, the first mounting plate is fixed to the lazy arm assembly, and the two sets of pulley block mechanisms are symmetrically arranged on the left side and the right side of the winch main body. The oil cylinder pulley type winchhas the positive effects that the winch has the advantage of avoiding overweight hoisting; due to the fact that the hoisting power of the winch is provided by a hydraulic system, therefore, when goodswith unknown weight are hoisted, the weight of the goods exceeds the load capacity of the hydraulic system, the hydraulic system can automatically release pressure and discharge oil, and the situation that a motor of the electric winch is burnt out when a crane is overloaded for hoisting is avoided.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to an oil cylinder pulley hoist. Background technique [0002] Most of the hoists equipped with various existing cranes are composed of drums, wire ropes, motors, braking mechanisms, reducers, and rope pullers. Large space, difficult to install and use on small and medium cranes. Moreover, electromagnetic brakes or lock brakes are used for braking, which is prone to wear and tear of the brake pads, affecting the braking effect and endangering the safety of on-site staff. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide an oil cylinder pulley hoist, which omits mechanisms such as drums, motors, reducers, braking mechanisms, and rope pullers, and has a simple structure, small size, and convenient maintenance. Problems existing in the prior art. [0004] The technical solution adopted by the present invention...

AI Technical Summary

Problems solved by technology

[0002] Most of the hoists equipped with various existing cranes are composed of drums, wire ropes, motors, braking mechanisms, reducers, and rope pullers. Large space, difficult to install on small and medium cranes

Moreover, the brake adopts electromagnetic brake or lock brake, which is prone to the situation that the wear of the brake pad affects the braking effect and endangers the life safety of the on-site staff.

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