Hydraulic support crane based on hydraulic buffer principle

Abstract

A hydraulic support crane based on the principle of hydraulic buffering includes a support beam, four hydraulic outriggers are arranged on the lower side of the support beam, the hydraulic outriggers include a cylinder, and the lower end of the cylinder is connected to the cylinder bottom, so the The cylinder barrel contains a piston rod, a hydraulic cylinder displacement sensor is installed at the end of the piston rod, the vent hole plug is located on the left side of the upper part of the cylinder barrel, the guide sleeve is located at the outlet of the upper end of the cylinder barrel, a cylinder cover is installed on the upper part of the cylinder barrel, and the inside of the cylinder cover A hydraulic oil leakage recovery device is provided; it also includes a trolley, a traveling wheel is installed at the bottom of the trolley, a track is installed on the upper end surface of the support beam, and the traveling wheel is located in the track; a buffer device. The beneficial effect of the invention is to increase the two-way hydraulic lock, which is formed by two single-way hydraulic valves connected in series in reverse, which prevents the hydraulic oil from flowing backwards and the retraction of the piston rod when the hydraulic outrigger is working.

Description

technical field [0001] The invention relates to the field of crane machinery, in particular to a hydraulic support crane based on the hydraulic buffer principle. Background technique [0002] A crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range, also known as a crane. The main features of the tire crane are: the driving cab and the lifting control room are combined into one, which is evolved from a crawler crane (crawler crane). The shortcomings of crawler cranes (crawler cranes) that track shoes cause damage to the road surface are eliminated, and they belong to material handling machinery. [0003] Some working characteristics of lifting equipment are intermittent movements, that is, in a working cycle, the corresponding mechanisms for retrieving, moving, unloading and other actions work alternately. The development and use of cranes in the market are becoming more and more extensive. Due...

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used buffer device is generally only composed of polyurethane, which is directly installed on the bottom of the trolley, and the upper part of the end beam is equipped with a buffer device. The buffer effect is not good, especially when the trolley moves too fast, due to its own inertia, the trolley The impact force and speed of hitting the end beam are large, and the buffer device cannot play an effective buffering role. A car collision accident occurs, causing damage to the equipment. In severe cases, the car will derail and fall, posing a serious safety hazard

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