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Great-torque miniature DC permanent-magnet synchronous servo motor

A permanent magnet synchronous and servo motor technology, applied in the field of servo motors, can solve the problems of high transportation costs, large motor volume, and unattractive appearance, and achieve the effects of easy transportation and packaging, reduced installation size, and saving raw materials

Inactive Publication Date: 2011-01-19
杭州励磁自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by power and torque, in special models, the application of micro DC servo motors is not enough
The traditional servo motor is a rare-earth motor. The motor is large in size, resulting in complicated installation process, high transportation cost, unattractive appearance, and cannot be installed in the sewing machine head in the form of direct drive. It can be used in the form of direct drive.
However, ordinary micro DC servo motors still have the disadvantage that the torque at low frequency, low voltage and low speed is not stable enough, which affects the unsatisfactory operation at low speed.

Method used

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  • Great-torque miniature DC permanent-magnet synchronous servo motor
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  • Great-torque miniature DC permanent-magnet synchronous servo motor

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] Such as Figure 1-Figure 3 As shown, this embodiment includes a casing 3, the inner wall of which is fixed with a stator 1, the stator is coaxially embedded with a rotor 2 that can rotate around its axis, and a photoelectric encoder 4 is installed on the output shaft of the motor as a speed and phase signal detector. . The casing 3 includes a hollow body 3-1, a front end cover 3-2 and a rear end cover 3-3, wherein the outer shell 3-1 is a stretched aluminum profile, and the front end cover 3-2 and the rear end cover 3-3 are die-cast aluminum , has the characteristics of light weight and good heat dissipation. The three are tightly connected by through-hole screws 3-4 to form a sealed cavity, and its length, width, and height are 10.8cm, 8cm, and 8cm, respectively.

[0033] Such as Figure 4-Figure 6 As shown, the stator 1 is used to generate a magnetic field, and it includes a sleeve-shaped stator core formed by a group of stator punches 1-3 (silicon steel sheets) tha...

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Abstract

The invention aims to provide a great-torque miniature DC permanent-magnet synchronous servo motor to ensure that the output power and the torque can drive great-load sewing equipment, such as a thick material machine, and the like, and the motor can be lightweight, portable and small. The invention adopts the technical scheme that the great-torque miniature DC permanent-magnet synchronous servo motor is provided with a shell and provided with a stator on the inner wall, wherein a rotor is coaxially embedded in the stator, and a motor output shaft is provided with a photoelectric coder. The great-torque miniature DC permanent-magnet synchronous servo motor is characterized in that the rotor comprises a rotating shaft which penetrates through a bearing, is mounted on the shell and is coaxially provided with a cylindrical rotor core, the outer circumferential surface of the rotor core is evenly provided with a group of axial slots in which matched permanent magnets are inserted, and cylindrical fasteners for fastening the permanent magnets and the rotor core are arranged at both ends of the rotor core. The invention is mainly used for high-speed sewing equipment, particularly a high-speed thick material machine and a synchronization car servo control system.

Description

technical field [0001] The invention relates to a servo motor, in particular to a high-torque miniature DC permanent magnet synchronous servo motor, which is mainly suitable for high-speed sewing equipment, especially the servo control system of high-speed thick material machines and synchronous vehicles. Background technique [0002] The performance of sewing equipment in our country has been greatly improved with the development of computer control technology and frequency conversion technology. In the use of sewing equipment, DC servo motors are more and more widely used, not only gradually replacing the previous clutch motors in the field of industrial sewing machines, but also becoming popular in household sewing machines. The excitation winding and the rotor part of the DC servo motor are powered by two independent power sources respectively. There is also a permanent magnet type, that is, the rotor is a permanent magnet, which has the advantages of good speed regulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/14H02K1/27H02K21/02H02K1/16H02K5/04H02K11/00H02K11/22
Inventor 王亚卡李志军何恬许伟杰蒋中武杞晓航胡海强
Owner 杭州励磁自动化技术有限公司
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