Crane with cantilever adjusting mechanism

Abstract

The invention relates to the technical field of cranes, and particularly relates to a crane with a cantilever adjusting mechanism. The crane comprises a stand column, wherein a rotating shaft is arranged on the stand column; a cantilever is rotationally arranged on the rotating shaft; a sliding rail is arranged on the cantilever; an electric hoist is movably arranged in the sliding rail; a supporting column is fixedly arranged on the rotating shaft; a motor is fixedly arranged in the supporting column; the motor is fixedly connected with a screw rod; a nut base is movably arranged on the screwrod; a pull rod is hinged to the nut base; and the nut base is arranged in a limiting groove in a sliding manner. A storage battery with a single-pole three-throw switch is used for supplying power to the motor and an electromagnet, the upwarping degree of the cantilever is safely adjusted and controlled, when power is supplied to the electromagnet, the stability of the cantilever is improved, the cantilever is prevented from drooping during use, and when power is supplied to the motor, the electromagnet is powered off, a safety structure is automatically reset, and the adjusting process of the cantilever is not hindered.

Description

Technical field [0001] The invention relates to the technical field of cranes, in particular to a crane with a cantilever adjusting mechanism. Background technique [0002] At present, the common wall-mounted cantilever crane's rotary shaft, tie rods and cantilever profiles are directly connected by welding or other fixed connection methods. There is no angle adjustment function, and the cantilever can only simply follow the rotary shaft for horizontal rotation. , Can not realize the adjustment of the cantilever crane upturn. In the actual use of cantilever cranes, due to different lifting weights, the upturn of the cantilever crane is often required to match it, so that the lifting device on the crane can better carry out the lifting work and realize the function of transferring objects. The cantilever crane cannot effectively meet the requirements of users, and it is very important to ensure its stability after the cantilever adjustment process. In view of this, we propose a c...

AI Technical Summary

Problems solved by technology

[0002] At present, the connection between the rotary shaft, pull rod and cantilever profiles of common wall-mounted cantilever cranes is generally realized directly by welding or other fixed connection methods. There is no angle adjustment function, and the cantilever can only simply follow the rotary shaft to rotate horizontally. , can not realize the adjustment of the upturn of the cantilever crane

In the actual use of the cantilever crane, due to the difference in hoisting weight, it is often required that the upturn of the cantilever crane can match it, so that the pick-up device on the crane can better perform the lifting work and realize the function of transferring objects. The cantilever crane can not effectively meet the user's requirements, and it is very important to ensure its stability after the cantilever adjustment process, in view of this, we propose a crane with a cantilever adjustment mechanism

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