Servo motor

Abstract

The invention relates to a servo motor used to be connected a modified direct-drive type sewing machine. The servo motor comprises a shell, a left end cover, and a right end cover, wherein the left end cover is provided with an external ring in which an internal ring is arranged, and the internal ring is provided with the internal ring external circumferential surface; the internal circumferential surface of the external ring is communicated with the external circumferential surface of the internal ring; the ring-shaped bottom surface is matched with the outer end surface of an oil seal groove, the external circumferential surface of the internal ring is matched with the internal circumferential surface of the oil seal groove, the central lines of the internal and the external rings are coincided with the axial line of the output axis of the motor, the left end part of the output axis of the motor is provided with a mounting groove along the direction of the axial line, and the output axis of the motor is fixedly connected with the input axis of the sewing machine in the mounting groove; and the shell is provided with an operating hole which is communicated with the inside of the mounting groove. The servo motor is suitably used for the sewing machine in different models; and due to the hollow structure, the total length of the servo system is effectively shortened, and the gravity center of the servo system is made closer to the mounting point, so that the servo motor and the axis of the sewing machine are ensured to be concentric.

Description

technical field [0001] The present invention relates to a servo motor for connection to a retrofit direct drive sewing machine. Background technique [0002] The working principle of the industrial sewing machine produced by the traditional method is usually that the motor drives the belt through a clutch or similar device. During the operation of the belt, the needle bar of the sewing machine is moved by the action of the transmission device to complete the sewing work. For example: EC-type motor industrial sewing machine is an industrial sewing machine produced in the traditional design form of EC motor plus belt drive. However, when the old industrial sewing machine based on this design principle does not need to perform sewing operations, the needle bar of the sewing machine stops, but the motor is still running, resulting in waste of electric energy; Energy loss, reducing the efficiency of the drive system of an industrial sewing machine. [0003] In order to solve th...

AI Technical Summary

Problems solved by technology

However, when the old industrial sewing machine based on this design principle does not need to perform sewing operations, the needle bar of the sewing machine stops, but the motor is still running, resulting in waste of electric energy; Energy loss, reducing the efficiency of industrial sewing machine drive systems

[0003] In order to solve the inefficiency of the sewing machine driven by the clutch and the pulley, it is usually converted into a sewing machine driven by a servo motor, but the most critical thing is how to connect the sewing machine with the servo motor

However, due to the different types of sewing machines and servo motors, it is difficult to connect the two. It is very expensive to equip each type of sewing machine with a suitable servo motor.

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