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High-temperature-resistant and radiation-resistant stepping motor

A stepper motor, radiation-resistant technology, applied in the field of electric motors, can solve the problems of large size and weight of stepper motors, limited working environment, restricted application, etc., and achieve the effects of light weight, small size and large torque

Active Publication Date: 2021-04-30
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of stepping motors, such as large volume and weight, and limited working environment, restrict its further application.

Method used

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  • High-temperature-resistant and radiation-resistant stepping motor

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as Figure 1 to Figure 4 As shown, the present invention provides a high-temperature (200°C) radiation-resistant stepping motor, which includes a non-magnetic rotating shaft 3 with two rotors 12 connected in series, a stator 1 located at the periphery of the rotor 12, and a winding The winding coil 7 on the stator 1 is respectively arranged on the front end bearing 5 and the rear end bearing 6 at the front end and the rear end of the non-magnetic rotating shaft 3, the permanent magnetic steel 2 between the two rotors 12, and the permanent magnetic steel 2. The material is samarium cobalt magnet, the chemical composition is SmCo28, and the heat resistance temperature is 300 degrees.

[0023] The material of the rotor 12 and the stator 1 is silicon steel, and the heat-resistant temperature is greater than 300 degrees.

[0024] The material o...

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Abstract

The invention belongs to the technical field of motors, and particularly relates to a high-temperature-resistant and radiation-resistant stepping motor, which comprises a non-magnetic rotating shaft (3) provided with two rotors (12) connected in series, a stator (1) positioned at the peripheries of the rotors (12), a winding coil (7) wound on the stator (1), a front-end bearing (5) and a rear-end bearing (6) which are respectively arranged at the front end and the rear end of a non-magnetic rotating shaft (3), and permanent magnet steel (2) located between the two rotors (12), wherein the permanent magnet steel (2) is made of a samarium-cobalt magnet, the chemical component of the permanent magnet steel (2) is SmCo28, and the heat-resistant temperature is 300 DEG C. The high-temperature-resistant and radiation-resistant stepping motor provided by the invention can resist high temperature and neutron / gamma irradiation, has the advantages of small size, light weight, large torque, high control precision and high response speed, and can be used in aerospace and nuclear industries.

Description

technical field [0001] The invention belongs to the technical field of electric motors, and in particular relates to a high-temperature-resistant and radiation-resistant stepping motor. Background technique [0002] The stepper motor is an open-loop control element that converts the electrical pulse signal into angular displacement or linear displacement. The stepping pulse signal has a linear relationship with the angular displacement, and the angular displacement output has no cumulative error. The temperature resistance of ordinary stepper motors is usually below 130 degrees. If the temperature exceeds this temperature, the motor will produce torque reduction, wire softening, and permanent magnet material demagnetization, resulting in irreversible damage. The stepper motor has the advantages of reliable operation, high control precision, no cumulative error, brushless, and the speed has nothing to do with the load. However, the shortcomings of stepping motors, such as la...

Claims

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Application Information

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IPC IPC(8): H02K37/14H02K5/04H02K3/30H02K3/46H02K1/27H02K1/12
CPCH02K37/14H02K5/04H02K3/30H02K3/46H02K1/2706H02K1/12
Inventor 刘磊张金山范月容袁建东刘天才毕可明郭志家彭朝晖衣大勇刘孟茜冯嘉敏
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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