Movable portal crane

Abstract

The invention relates to a movable portal crane, which comprises two sets of travelling caterpillar tracks which are driven by a hydraulic motor, a vertical column is installed on a track chassis, and a hydraulic motor winch, a motor of a hydraulic system, a hydraulic pump and an oil box are arranged in a column body; a beam is arranged at the upper end of the vertical column, a trolley which carries a sheave block is arranged on the beam, and a pulley is connected with a hook pulley and the hydraulic motor winch through steel wire ropes; and a hydraulic cylinder and a hydraulic cylinder rod are arranged at the middle of the beam, the hydraulic cylinder is connected with the trolley, the side of the vertical column is provided with an operating handle and a button, and the operating handle and the button are connected with the motor, the hydraulic pump, the hydraulic motor winch and the hydraulic motor which drives the caterpillar tracks in a control way. An upper column body and a lower column body are fixedly connected and also can be flexibly, conveniently, detachably and fixedly connected with a left beam body and a right beam body. A remote control can be arranged. The invention has the advantages of applicability for pipeline hoisting, very complete structure, convenience and flexibility for operation, strong field adaptability, safety, high efficiency and multiple functions.

Description

technical field [0001] The invention relates to the technical field of hoisting and hoisting, in particular to a hoisting device used for hoisting and installing pipelines in pipeline construction. Background technique [0002] In pipeline welding construction, especially in the process of relatively large-scale pipeline welding construction, the handling and matching of steel pipes is a very heavy and difficult process. The existing pipe-hanging equipment generally adopts general-purpose single-arm lifting equipment. It is heavy, and the equipment needs to add counterweights), during the pipeline transportation and counterpart construction, due to the geological conditions, the operation of a single machine close to the unilateral ditch will cause a large unilateral pressure on the ground, which is prone to equipment rollover and ditch collapse , resulting in equipment damage and casualties. Therefore, need to propose a kind of novel crane that is used for installing hoist...

AI Technical Summary

Problems solved by technology

[0002] In pipeline welding construction, especially in the process of relatively large-scale pipeline welding construction, the handling and matching of steel pipes is a very heavy and difficult process. The existing pipe-hanging equipment generally adopts general-purpose single-arm lifting equipment. It is heavy, and the equipment needs to add counterweights), during the pipeline transportation and counterpart construction, due to the geological conditions, the operation of a single machine close to the unilateral ditch will cause a large unilateral pressure on the ground, which is prone to equipment rollover and ditch collapse , resulting in equipment damage and casualties

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