Continuous-wall grab bucket

A wall grab and grab technology, which is applied in the field of underground construction machinery, can solve the problems of unreachable, residual, and low efficiency, and achieve the effect of easy falling off and improved grabbing efficiency

Active Publication Date: 2014-06-04
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 bucket. The continuous-wall grab bucket comprises a machine body, a sliding mechanism, a grab bucket supporting base and a grab bucket body, wherein the sliding mechanism is arranged inside the machine body and can slide in the vertical direction relative to the machine body, the grab bucket body is hinged to the grab bucket supporting base and connected with the sliding mechanism through a connecting rod, and a crank-sliding block mechanism is formed by the grab bucket body, the sliding mechanism and the connecting rod; an elastic device is arranged between the machine body and the grab bucket supporting base, a micro elastic vibration system is composed of the machine body, the elastic device and the grab bucket supporting base together, and the grab bucket body swings slightly when the continuous-wall grab bucket is used for construction. The continuous-wall grab bucket can improve construction efficiency of an underground continuous wall project and prolong service life of the underground continuous wall.

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 Applications(China)
IPC IPC(8): E02F5/14
Inventor 侯志强刘汉光范鹏
Owner XCMG CONSTR MACHINERY
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