A motor with retractable shaft extension

Abstract

The present invention provides a motor with a retractable shaft extension, which comprises: a shaft body and a shaft extension: the shaft body is a hollow structure including a first inner cavity, the shaft extension can be inserted into the first inner cavity, and can be inserted in the first inner cavity. The inner cavity moves relative to the shaft body in the axial direction, and at least two snap-fit ​​positions in the axial direction can be formed between the shaft extension and the shaft body; or, the shaft extension is a hollow structure including a second inner cavity, and the shaft The body can be inserted into the second inner cavity and can move relative to the shaft extension in the axial direction in the second inner cavity, and at least two axially engaging positions can be formed between the shaft body and the shaft extension. According to the invention, the shaft extension length of the motor can be effectively adjusted according to the actual working conditions. When the motor workplace changes and the shaft extension length changes, there is no need to redesign a new motor scheme. To achieve the matching effect, enhance the versatility of the motor for various working conditions.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a motor with a retractable shaft extension. Background technique [0002] As a high-precision power output device, servo motors are widely used in robots, CNC machine tools, packaging equipment, and printing equipment. As far as the existing motors are concerned, depending on the installation situation, the installation involves the size of the shaft extension, and each motor corresponds to its fixed shaft extension size. [0003] The traditional technology has the following problems: the shaft extension of each motor in the traditional motor scheme is unique, the shaft extension length and motor installation methods of different motors are different, some shafts are elongated, some shafts are short, and when the motor workplace changes In particular, only the shaft extension installation length changes, because the shaft extension size does not match, it is necessary to redesign...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is mainly to overcome the defect that the motor shaft extension length in the prior art is unique, and different motor solutions need to be designed for different working environments, resulting in low general performance of the motor, thereby providing a shaft extension retractable motor

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