A squirrel-cage cylindrical linear motor

Abstract

The invention provides a squirrel-cage cylindrical linear motor, which comprises a squirrel cage frame, a rotor and a stator, which are coaxially arranged, wherein the stator and the rotor sleeving the stator and making a linear reciprocating movement are arranged in the squirrel cage frame. The squirrel-cage cylindrical linear motor is characterized in that parallel four spokes are arranged between the top surface and the bottom surface of the squirrel cage frame, and the end part of the stator is provided with a supporting plate connected with the bottom surface of the squirrel cage frame; the end part of the rotor is provided with a retainer, and the side wall of the rotor is provided with a hoop; connecting plates correspondingly connected with the spokes are arranged between the retainer and the hoop, and the retainer is provided with a pushing seat; the pushing seat and the rotor are coaxially arranged and positioned at the outer side of the top surface of the squirrel cage frame. Compared with the prior art, the squirrel-cage cylindrical linear motor provided by the invention has the advantages of not only constraining the freedom of movement and the size of an air gap between the rotor and the stator of the motor, and allowing the rotor to drive a load to run, and having firm and reliable overall structure, small size, space saving and convenience in installation.

Description

technical field [0001] The invention relates to a linear motor, in particular to a squirrel-cage cylindrical linear motor. Background technique [0002] Motor refers to an electromagnetic device that realizes the conversion or transfer of electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machinery. [0003] A linear motor can be considered as a deformation of the rotary motor in terms of structure. It can be regarded as a rotary motor cut along its radial direction, and then flattened and evolved. In a linear motor, what is equivalent to the stator of the rotating motor is called the primary; what is equivalent to the rotor of the rotating motor is called the secondary. The moving part can be called the stator, and the moving part can be called the mover. [0004] In recent years, with the rapid development of automatic control technology and microcomp...

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Problems solved by technology

[0004] In recent years, with the rapid development of automatic control technology and microcomputers, higher requirements have been placed on the positioning accuracy of various automatic control systems. In this case, the traditional rotating motor plus a set of transformation mechanisms Linear motion drive devices are far from meeting the requirements of modern control systems. For this reason, many countries in the world are researching, developing and applying linear motors in recent years, making the application fields of linear motors more and more extensive.

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