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Self-resetting limited-angle torque motor

A technology of limited rotation angle and torque motor, which is applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problem that the limited rotation angle brushless DC torque motor cannot be reset normally, and achieve the effect of simple structure, convenient operation and improved reliability

Pending Publication Date: 2020-02-28
XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a self-resetting limited angle brushless DC torque motor to solve the problem that the limited angle brushless DC torque motor cannot be reset normally due to the damage and failure of the scroll spring

Method used

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  • Self-resetting limited-angle torque motor

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] From image 3 It can be seen that the limited angle torque motor in this embodiment is composed of a motor shaft 1 , an end cover 2 , a bearing 3 , a casing 4 , a motor rotor 5 , a motor stator 6 , a motor controller 7 , a reset rotor 8 and a reset stator 9 . The end caps 2 are fastened on both ends of the casing 4 to form a closed casing. The two end covers 2 are provided with bearing holes at the center of the side walls inside the airtight housing, and the bearings 3 are fixed in the bearing holes. The motor shaft 1 passes through the center of the airtight casing, and its two ends inside the airtight casing are respectively supported by bearings 3 . Both the motor rotor 5 and the motor stator 6 are located inside the airtight casing, wherein the motor stator 6 is fixed on the casing 4, and the electronic rotor 5 is installed on the...

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Abstract

The invention belongs to the field of motors, and particularly relates to a self-resetting limited-angle torque motor. The problem that a limited-angle brushless direct-current torque motor cannot benormally reset due to damage failure of a volute spiral spring is solved. The self-resetting limited-angle torque motor comprises a reset stator and a reset rotor. The reset stator comprises a reset base, at least two reset magnetic steel seats and at least two pieces of reset stator magnetic steel. The reset base is formed by forming at least two U-shaped grooves in the end face of an annular base body. The reset magnetic steel seats are fixed on the reset base, and one piece of reset stator magnetic steel is fixed on each seat. The reset rotor comprises a reset rotor bracket and at least onepair of reset rotor magnetic steel. The reset rotor magnetic steel is oppositely arranged on the outer wall of the reset rotor bracket and faces the reset stator magnetic steel. Through resetting ofa permanent magnet structure, rapid resetting of the limited-angle torque motor is realized. The structure is simpler. The risk of fracture failure of the volute spiral spring is avoided. The motor can adapt to complex environmental conditions, and the reliability is obviously improved.

Description

technical field [0001] The invention belongs to the field of motors, and in particular relates to a self-resetting limited-angle torque motor. Background technique [0002] The limited angle torque motor is a servo motor that can directly drive the load within a certain angle range for fast movement and accurate positioning. Compared with ordinary brushed DC motors with brushes and commutators, the structure is relatively simple, and the reliability is high, and there is no phenomenon of severe jumping of brushes caused by frequent reciprocating swings. It is especially suitable for servo drive occasions that only perform reciprocating swing, small size, high precision, long life and high reliability. [0003] Torque motors with limited rotation angle mostly use scroll springs for mechanical reset. Its structure is as figure 1 As shown, it mainly includes a motor shaft 1, an end cover 2, a bearing 3, a casing 4, a motor rotor 5, a motor stator 6, a motor controller 7, a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K26/00H02K1/17H02K1/27H02K1/30
CPCH02K26/00H02K1/17H02K1/2706H02K1/30
Inventor 李玉涛贾国超李吉兴曹宽
Owner XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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