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Diaphragm Wall Grab

A wall grab and grab technology, which is applied in the field of underground construction machinery, can solve the problems of unreachable, residual, low efficiency, etc., and achieve the effect of being easy to fall off and improving the grabbing efficiency.

Active Publication Date: 2016-05-04
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the uncertainty of the working medium, this goal has not been achieved
[0007] 3. During the unloading process of the bucket, only relying on the scraping action of the scraper and the impact between the grab body and the limit block to achieve the goal of fast and complete unloading of the working medium, the efficiency is low and there are often residues
[0008] The above three problems have seriously restricted the construction efficiency and service life of the diaphragm wall hydraulic grab

Method used

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Embodiment Construction

[0029] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0030] In order to facilitate the description of the solution to the existing problems of the existing diaphragm wall hydraulic grab, the structure of the existing diaphragm wall hydraulic grab is analyzed first. Such as figure 1 Shown is the structural schematic diagram of the existing diaphragm wall hydraulic grab. It can be seen from the figure that the slider a3 driven by the hydraulic cylinder a2 moves in the vertical direction, and the grab body a6, a7 is driven to rotate relative to the support a9 through the connecting rod a4, a10. Slider a3, connecting rod a4, a10 and grab body a6, a7 together form an equivalent crank slider mechanism, as figure 2 shown. The vertical movement of B and B' makes A and A' rotate around O and O' respectively to realize the opening and closing of the grab body.

[0031] On the...

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PUM

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Abstract

The invention relates to a continuous wall grab, comprising: a body, a sliding mechanism, a grab support and a grab body, the sliding mechanism is arranged in the inner space of the body, and can be vertically The grab body is hinged on the grab support and connected to the sliding mechanism through a connecting rod. The grab body, sliding mechanism and connecting rod form a crank-slider mechanism, wherein the An elastic device is provided between the body and the grab support, and the body, the elastic device and the grab support together form a micro-amplitude elastic vibration system, so that the grab body slightly swing. The invention can improve the construction efficiency and service life of the underground continuous wall project.

Description

technical field [0001] The invention relates to the field of underground construction machinery, in particular to a continuous wall grab. Background technique [0002] The mechanism structure of the diaphragm wall hydraulic grab can be attributed to a typical crank-slider mechanism. During operation, the system uses the hydraulic system to push the slider to slide up and down, and finally realizes the "crank mechanism" (grab body) through the force transmission of the connecting rod. ) swing, that is, the opening and closing of the grab body to complete the grabbing operation of the system. According to the different functions of the opening and closing of the grab body, the entire grab operation process can be divided into three stages: the self-weight falling stage, the hydraulic bucket closing stage, and the bucket opening and unloading stage. [0003] In the self-weight falling stage, a pair of grab bodies open to the maximum angle under the action of the hydraulic syst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F5/14
Inventor 侯志强刘汉光范鹏
Owner XCMG CONSTR MACHINERY