Hydraulic grab bucket for concrete diaphragm wall construction

Abstract

The invention belongs to the technical field of underground construction equipment, and particularly relates to a hydraulic grab bucket for concrete diaphragm wall construction. The two sets of grab bucket bodies are oppositely arranged, and the two sets of grab bucket bodies are hinged to the bottom of the grab bucket frame body correspondingly; the mud scraping parts are arranged on the opposite outer side walls of the short edges of the grab bucket frame body, and the mud scraping parts are used for cleaning soil residues on the inner wall of the groove; the deviation rectifying mechanism is fixedly connected to the inner side wall of the grab bucket frame body, and the deviation rectifying mechanism is used for adjusting the gravity center of the grab bucket frame body and the grab bucket body; the top of the auxiliary crushing mechanism is arranged on the inner side of the grab bucket frame body, and the bottom of the auxiliary crushing mechanism is arranged between the two grab bucket bodies; and the first driving part is arranged at the bottom of the grab bucket frame body, and the two sets of grab bucket bodies are driven by the first driving part. The construction smoothness can be effectively improved, and the construction efficiency and the process stability are improved.

Description

technical field [0001] The invention belongs to the technical field of underground construction equipment, and in particular relates to a hydraulic grab for concrete seepage-proof wall construction. Background technique [0002] Diaphragm hydraulic grab working device belongs to a typical crank-slider mechanism. It uses a hydraulic cylinder to push the slider to slide up and down along the body, and through the force transmission of the connecting rod mechanism, the tension of the crank mechanism (grab body) is finally realized. Open and close movement to complete the grasping operation of bulk media. According to their different characteristics during the movement of the grab body, it can be divided into three stages: the self-weight intrusion stage, the hydraulic closing stage and the bucket unloading stage. Under the action of its own gravity, the existing hydraulic grab equipment has a limited intrusion depth. In the limited groove space, increasing the gravity by incre...

AI Technical Summary

Problems solved by technology

Under the action of its own gravity, the existing hydraulic grab equipment has a limited penetration depth. In the limited groove space, increasing the gravity by increasing the equipment size will obviously increase the construction cost, and the grabbing efficiency has not been significantly improved. At the same time, it will increase The size will also increase the frequency of being stuck; therefore, there is an urgent need for a concrete anti-corrosion system that can effectively improve the smoothness of construction, improve construction efficiency and process stability under the condition of maintaining the original gravity within a limited trench space. Hydraulic grab bucket for seepage wall construction

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