Hydraulic claw bucket of slotting machine

Abstract

The invention relates to an underground continuous wall grooving machine, in particular to a hydraulic crab bucket of the grooving machine. The aim of the invention is to solve a problem of generating a hollow cutting phenomenon due to the upward floating of a machine body when the hydraulic crab bucket grabs and closes, and provide the hydraulic crab bucket provided with power assisting devices. The structure of the grooving machine consists of the machine body, a hydraulic device and a crab bucket, wherein two sides of the machine body are at least provided with a power assisting device respectively. The grooving machine has the advantages that when an excavation project is in an underground deep trench and comes across an underground hard soil layer, the power assisting devices of the grooving machine can be started. When the power assisting devices at the two sides of the machine body of the hydraulic crab bucket are opened, the whole machine body can be blocked in the trench, and then, when the crab bucket downwards excavates a hard soil layer, under the action of the power assisting devices, the upward floating of the machine body can be avoided. The key points are that the grooving machine has low cost and light weight, is arranged on the hydraulic crab bucket, and can achieve the effect of increasing the weight without increasing the load capacity of a hoister. At the same time, the excavating depth can be increased.

Description

technical field [0001] The invention relates to an underground continuous wall grooving machine, in particular to a hydraulic grab bucket of the grooving machine. Background technique [0002] With the rapid development of my country's economy, the urban rail transit network is becoming more and more developed. For the construction of subway stations, transfer stations for two or even three subway lines have appeared, and the transfer stations of the subway have been built deeper and deeper, and the depth from the ground has reached more than 42 meters. In addition, it is very difficult to excavate the hard soil layer deep underground. For example: 30 meters underground in Shanghai, there is a layer of hard soil, commonly known as iron plate sand, with a thickness of about 5 to 8 meters. It is difficult for the hydraulic grab bucket of an ordinary diaphragm wall forming machine to reach a depth of 42 meters underground, let alone excavate hard soil layers. The main reason...

AI Technical Summary

Problems solved by technology

If the weight of the hydraulic grab is simply increased, the load capacity of the crane will be increased, which will increase the cost of the crane

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