Slide arm type slewing crane

Abstract

The invention discloses a slide arm type slewing crane, and belongs to the field of slewing cranes. The slide arm type slewing crane comprises a stand column body with a rotation drive device. The stand column body comprises a fixed column and a rotating column. The fixed column is fixedly connected to the ground. The rotating column is rotationally connected to the upper end of the fixed column.A motor is mounted between the rotating column and the fixed column. The outer side of the rotating column is connected with a sleeve in a sleeved manner. A first opening is formed in the stand columnbody. A second opening is formed in the sleeve. The first opening is matched with the second opening. A rotary arm is inserted in the first opening and the second opening in a penetrating manner. Compared with an existing stand column type slewing crane, the slide arm type slewing crane can have better mounting conditions; when other obstacle equipment exists within the work range, mounting cannot be influenced, and normal use can be achieved; wear is less likely to happen; and the work performance of the slewing crane is remarkably improved.

Description

technical field [0001] The invention relates to the field of jib cranes, more specifically, to a sliding jib crane. Background technique [0002] The jib crane is also called the jib crane. It is a small and medium-sized lifting equipment developed in recent years. It has a unique structure, is safe and reliable, and has the characteristics of high efficiency, energy saving, time-saving, labor-saving, and flexibility. In the case of intensive transportation, it shows its superiority more than other conventional lifting equipment. [0003] The working strength of the jib crane is light. The crane is composed of a column, a slewing arm slewing drive device and an electric hoist. The lower end of the column is fixed on the concrete foundation through anchor bolts. The cantilever I-beam runs in a straight line from left to right and lifts heavy objects. The jib of the crane is a hollow steel structure with light weight, large span, large lifting capacity, economical and durabl...

AI Technical Summary

Problems solved by technology

When it is necessary to use the column jib crane in the non-working area (N), it is necessary to reinstall one, or reinstall the previous column jib crane, which is very inconvenient, and the column jib crane is used in factories, mines, workshops When used in production lines, assembly lines, up and down work of machine tools, warehouses, docks and other occasions, it is often affected by other equipment in the installation site. The column jib crane needs to avoid the installation of these equipment, which is very inconvenient and affects performance.

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