Positioning and locking device of large guide rail type hoisting crane

Abstract

The invention relates to a positioning and locking device of a large guide rail type hoisting crane, relating to a locking device of a large hoisting crane. The dead weight of the crane is fully utilized, and the device can be operated in a cab. The positioning and locking device comprises a controller, a first stopping clamp, a second stopping clamp, an open position limiting switch, a closed position limiting switch and a transmission mechanism. The transmission mechanism comprises a drive motor, a main transmission gear, an intermediate transmission gear, a reversing transmission gear, a first stopping clamp drive gear and a second stopping clamp drive gear; the first stopping clamp and the second stopping clamp are hook-shaped, the hook tips of the first stopping clamp and the second stopping clamp are arranged oppositely and correspond to the waist part of the guide rail of the hoisting crane; the first stopping clamp and the second stopping clamp are respectively provided with afirst limiting bulge and a second limiting bulge; and the open position limiting switch and the closed position limiting switch are arranged on a crane body and correspond to the starting points and the ending points of strokes of the first limiting bulge and the second limiting bulge. By adopting the device, the efficiency can be increased, the labor cost can be reduced, and hidden safety risks caused by back-and-forth passing of personnel through construction areas can be reduced.

Description

technical field [0001] The invention relates to a locking device of a heavy-duty rail traveling crane, in particular to a locking device of a large-scale lifting crane. Background technique [0002] The large-scale gantry cranes used in the shipbuilding industry have a span of more than 100 meters and a height of more than 70 meters; before the crane driver leaves the crane, he must arrange a special person (or solve it by himself) to lock each driving wheel (8 places) of the crane , to prevent the crane from moving due to strong winds. The current enterprise operation is manual operation, and each driving wheel needs three operation procedures, and 8 locks require a total of 24 operations, which is time-consuming and labor-intensive. In addition, when installing ship components with high positioning requirements, the crane is also required to be in a stable state. When hoisting large parts, due to the large weight, the inertia of the hoisting parts is also large when movi...

AI Technical Summary

Problems solved by technology

The current enterprise operation is manual operation, each driving wheel needs three operation procedures, 8 locks need a total of 24 operations, which is time-consuming and labor-intensive

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