Lifting hook limiting structure of fuel pipe crane

Abstract

The invention provides a lifting hook limiting structure of a fuel pipe crane, which can effectively guarantee the action of a limiting device so as to control the action of a winch, better realize limiting of a lifting hook during a lifting process and avoid the impact of the lifting hook against a pulley block. The lifting hook limiting structure comprises a boom, wherein the winch is arranged at one end of the boom; the pulley block is arranged at the other end of the boom; a lifting rope is connected with the winch and the pulley block; and the lifting rope is connected with the lifting hook after bypassing the pulley block. The lifting hook limiting structure is characterized in that a limiting control rope is arranged on the boom; one end of the limiting control rope is connected with a limiting control device; the other end of the limiting control rope is connected with a bearing block through a guiding and positioning device; a through hole is formed in the center of the bearing block; and the lifting rope passes through the through hole and is connected with the lifting hook.

Description

technical field [0001] The invention relates to the technical field of marine hoisting machinery. Specifically, it is a fuel pipe hanging hook limit structure. Background technique [0002] When loading and unloading oil products on the ship wharf, the oil pipeline should be placed on the oil truck on the wharf. Because the oil pipeline is relatively heavy, a fuel pipe crane is usually used. During the lifting process of the crane, the hook is easy to collide with the pulley block on the boom, resulting in In order to prevent the damage of the pulley block on the boom, a limit device is designed on the boom. The existing limit device is a hoisting rope connected to the load block, and a limit switch is set on the boom. When the load block When it bumps into the limit switch when it is rising, the limit switch will act to control the winch, realize the stop of the winch, and effectively prevent the hook from colliding with the pulley block. It is easy to directly damage the...

AI Technical Summary

Problems solved by technology

[0002] When loading and unloading oil products on the ship wharf, the oil pipeline should be placed on the oil truck on the wharf. Because the oil pipeline is relatively heavy, a fuel pipe crane is usually used. During the lifting process of the crane, the hook is easy to collide with the pulley block on the boom, resulting in In order to prevent the damage of the pulley block on the boom, a limit device is designed on the boom. The existing limit device is a hoisting rope connected to the load block, and a limit switch is set on the boom. When the load block When it bumps into the limit switch when it is rising, the limit switch will act to control the winch, realize the stop of the winch, and effectively prevent the hook from colliding with the pulley block. It is easy to directly damage the limit switch during the movement, thereby damaging the limit device and causing the failure of the limit device, and the hook will shake a lot during the ascent process, which will also cause the load block to not move when it hits the limit switch. Accurate, affecting the action of the limit switch, thereby affecting the action of the winch, causing the impact of the hook on the pulley block and damaging the pulley block

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