a spreader

Abstract

The invention discloses a lifting appliance which comprises a lifting beam and a plurality of supporting legs. The lifting beam is used for being connected with a hoister. The multiple supporting legs are arranged on the lifting beam, and the end portions of the multiple supporting legs are slopes attached to the inclined inner walls of an end pressure ring of a motor base. In the use process, the lifting appliance extends into the end pressure ring of the motor base, the multiple supporting legs are attached to the inclined inner walls of the end pressure ring, and the hoister and the lifting beam are connected to stably lift the motor base. In the lifting process, the motor base is lifted through matching of the lifting appliance and the end pressure ring without causing damage to an iron core or increasing workloads of operators. Thus, the lifting appliance provided by the invention can ensure safe lifting of the motor base on the premise that the iron core is not damaged and the workloads of the operators are not increased, and issues in the field at the present stage are solved.

Description

technical field [0001] The invention relates to the field of motor base hoisting, more specifically, to a hoisting tool. Background technique [0002] The motor frame, taking the AC traction motor as an example, its frame is a typical thin-walled box structure, especially for the lightweight design of the motor, the wall thickness of the motor seam is further reduced, therefore, the hoisting of the frame has become a difficulty in this field. [0003] As far as the existing technology is concerned, none of the motor frames on the market has a suitable lifting point. There are mainly two vertical hoisting methods commonly used. One is to weld the lifting ring for lifting during the processing of the frame. , and then use the pneumatic milling cutter to remove the lifting ring; this process is complicated and increases the workload of the operator. The other is to use the slot on the motor iron core as a lifting point to lift the frame; although this method is simple to oper...

AI Technical Summary

Problems solved by technology

[0003] As far as the existing technology is concerned, none of the motor frames on the market has a suitable lifting point. There are mainly two vertical hoisting methods commonly used. One is to weld the lifting ring for lifting during the processing of the frame. , and then use the pneumatic milling cutter to remove the lifting ring; the process is complicated and increases the workload of the operator

The other is to use the slot on the motor iron core as a lifting point to lift the machine base; although this method is simple to operate, it is only suitable for light weight motors, otherwise it will cause damage to the iron core

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