Turnable vacuum disc suction machine for duct piece

Abstract

The invention relates to a turnable vacuum chuck machine for lifting concrete segment and steel segment, which consists of a support bracket, a vacuum pump, a vacuum gauge, an electromagnetic valve, a turnable hollow sealing beam used as a gasholder and a plurality of vacuum chucks which are arranged on different positions of the hollow sealing beam with a hinge. When working, the whole chuck machine is hooked on a corresponding hoisting device through a wire rope and is attached to an external surface (which can be a plane surface or an arc surface) of the segment of the lifted object depending on the self gravity. The vacuum pump exhausts air in the hollow sealing beam driven by a self-bring motor through the electromagnetic valve to cause the sealing beam to generate certain vacuum; when operates the vacuum switch, the vacuum switch can be caused to be communicated with the vacuum in the hollow sealing beam through a gas source pipeline; the segment can be lifted by the negative difference of the vacuum and atmospheric pressure in the hollow sealing beam. When the lifted object segment needs to be turned, through a power transfer system which consists of a rack, a gear and a driving shaft driven by another motor, the lifted segment can wind around a rotational axis along the hollow sealing beam and arbitrarily turn in a required angle under the support bracket so as to be in favor of the storage and arrangement of the lifted segment. The turnable segment chuck machine adopts purely mechanical structure and has reliable suction crane as well as turns steadily. The invention can turn and stop in any angle with simple and flexible operation as well as convenient maintenance.

Description

technical field [0001] The invention relates to a reversible vacuum suction cup machine for lifting concrete segments and steel pipes, in particular, a reversible vacuum suction cup machine for lifting and installing concrete segments and steel pipes for the construction of underground tunnels and municipal engineering. Background technique [0002] With the rapid development of my country's national economy and the further improvement of the people's requirements for material and cultural life, people's pace of life is also accelerating, and higher and higher requirements for public transportation are also raised. In recent years, relevant state departments have vigorously advocated and supported the development of underground rail transit in various places, especially in some economically developed large and medium-sized cities to develop fast and convenient subway traffic. As the main part of the subway transportation line, the construction efficiency, technology, safety ...

AI Technical Summary

Problems solved by technology

[0004] In view of these requirements, it is difficult to meet these requirements by using ordinary lifting methods and equipment, but using a vacuum lifter to lift the segment can solve the above problems well, and it is simple and fast. Therefore, the present invention provides a lifting concrete segment The reversible vacuum suction cup machine can also lift segments made of steel, cast iron and other materials; the shape of the adsorption surface of the segments can be flat or arc-shaped

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