Yard crane cart jacking oil cylinder mechanical falling protector

Abstract

The invention discloses a yard crane cart jacking oil cylinder mechanical falling protector. The yard crane cart jacking oil cylinder mechanical falling protector comprises an adjustable lock sleeve and a piston rod concave arc surface boss sleeve. The adjustable lock sleeve is fixed to the outer wall of the lower end of a jacking oil cylinder body through adjustable lock sleeve lock bolts. Adjustable lock sleeve positioning bolts are arranged on the outer wall of the adjustable lock sleeve. Spring seats are arranged under the adjustable lock sleeve. Spring pin shafts are arranged on the spring seats. The yard crane cart jacking oil cylinder mechanical falling protector has the beneficial effects that firstly, the mechanical falling protector is simple in design and easy and convenient to mount and does not need to be maintained; secondly, the reliability is high, the potential safety hazards of scratching and bruising accidents are eliminated, and the working efficiency is improved; thirdly, the start and stop numbers of generator units caused by gliding and falling of a ball seat are greatly reduced; fourthly, magnetic cylinders, oil cylinder sealing materials and other materials are saved, and the maintaining, dismounting, mounting and replacing cost is reduced; and fifthly, through application of the mechanical falling protector, lifelong benefits are achieved through one-time input, and a solution is further provided for hydraulic oil cylinders with the similar structure and mounting modes.

Description

technical field [0001] The invention relates to the technical field of cargo handling equipment, in particular to a mechanical anti-falling device for a large vehicle roof lifting cylinder of a field bridge. Background technique [0002] The port tire-type container gantry crane (hereinafter referred to as the field bridge) has a large lifting capacity and a heavy weight. In order to ensure that the field bridge crosses the street and turns to the working condition (0° to 90° or 90° to 0°), the response is timely , to reduce the steering frictional resistance of cart tires, each field bridge is equipped with a hydraulic pump station, four jacking cylinders, and steering devices, and the four jacking cylinders are placed diagonally on the saddle beam of the field bridge mast and four Below the door leg connection. When the field bridge needs to turn around, the driver controls the steering switch of the cart in the driver's cab, and the hydraulic power pump station provides ...

AI Technical Summary

Problems solved by technology

This move not only consumes time and fuel, affects the operation efficiency, but also increases the work of the emergency repair personnel on duty.

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