Gravity balance structure of crane

Abstract

The invention provides a gravity balance structure of a crane, and belongs to the technical field of crane machines. The gravity balance structure comprises a suspension arm ring, a connecting plate is movably connected below the suspension arm ring, a mounting seat is fixedly connected below the connecting plate, an assembly plate arranged in the middle of the connecting plate, the connecting plate is arranged at an opening of the assembly plate, a fixing shaft is connected between the connecting plate and the assembly plate in a penetrating mode, a limiting section extends from the inner endof the opening of the assembly plate, a plurality of mounting holes are formed in the surface of the assembly plate, a spring is fixedly connected below the connecting plate, a movable block is fixedly connected to the lower end of the spring, and the spring and the movable block are arranged in the mounting base, a piston is arranged at the bottom inside the mounting base, and a balancing weightis fixedly connected below the mounting base. The gravity balance structure of the crane is stable in structure, the crane can be kept perpendicular to the horizontal line all the time by arranging the assembly plate, the spring and the balancing weight, it is guaranteed that an aerial work platform cannot be inclined due to the gravity effect of a crane jib, and installation is convenient.

Description

technical field [0001] The invention relates to the technical field of crane machinery, in particular to a crane balance structure. Background technique [0002] When the boom of the crane is pitching, it will drive the wire rope outlet points at the end to move together, so that the wire rope outlet points at both ends cannot always be kept at the same level, resulting in tilting or even tilting of the crane in the air. Overturning is a serious threat to the life safety of the operators in the gondola, and the assembly of the balance device is inconvenient. Therefore, in view of this situation, it is urgent to develop a crane gravity balance structure to overcome the shortcomings in current practical applications. Contents of the invention [0003] The object of the present invention is to provide a gravity balance structure of a crane, which improves the deficiencies of the prior art, which can keep the crane in a state perpendicular to the horizontal line all the time, ...

AI Technical Summary

Problems solved by technology

[0002] When the boom of the crane is pitching, it will drive the wire rope outlet points at the end to move together, so that the wire rope outlet points at both ends cannot always be kept at the same level, resulting in the position of the gondola tilting or even tilting in the air. Overturning seriously threatens the life safety of the operators in the gondola, and the assembly of the balance device is inconvenient. Therefore, in view of this situation, it is urgent to develop a crane gravity balance structure to overcome the shortcomings in current practical applications.

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