Double-closed-loop structure suitable for movable outer rotor motor

An external rotor motor and double-closed-loop technology, applied in the direction of structural connection, electrical components, electromechanical devices, etc., can solve the problem that the installation of brakes and resolvers is difficult to achieve, does not involve the combined installation of movable brakes and resolvers, and cannot meet internal and external requirements. Outer rotor motor signal acquisition and redundancy switching function requirements and other issues, to achieve the effect of increasing the rigidity of the system

Active Publication Date: 2018-11-23
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For external rotor motors, since the stator is on the inside and the rotor is on the outside, it is difficult to install the brake and resolver
[0004] The combined installation of the movable brake and the rotary

Method used

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  • Double-closed-loop structure suitable for movable outer rotor motor
  • Double-closed-loop structure suitable for movable outer rotor motor

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0022] This patent proposes a mechanical closed-loop structure suitable for a movable outer rotor motor, which is composed of a brake, a resolver, a mounting seat, a bearing end cover, an angular contact ball bearing, and a guide key. The guide key cooperates with the chute of the housing to realize the circumferential fixation and overall sliding of the brake, which can be used in ordinary servo motors and external rotor motors with moving functions. Two rows of angular contact ball bearings are arranged face to face, on the one hand, they are used to support the motor shaft and increase the overall rigidity of the motor system, and on the other hand, they can be used to balance the two-way axial force. On the one hand, the bearing cover is used for bearing positioning, and on the other hand, it is used as a fixing plate of the resolver.

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Abstract

The invention discloses a double-closed-loop structure suitable for a movable outer rotor motor, and relates to the field of electromechanical actuators. The double-closed-loop structure comprises a motor shaft, a brake rotor, a guide key, a brake stator, a brake stator mounting base, a bearing end cover, a rotary transformer stator, a rotary transformer rotor and an angular contact ball bearing;the rotary transformer rotor is wrapped on the outer wall of the output end of the motor shaft; the rotary transformer stator is wrapped on the outer wall of the rotary transformer rotor; the bearingend cover is fixedly arranged on the outer wall of the rotary transformer stator; the angular contact ball bearing is fixedly arranged on the outer wall of the motor shaft; the brake rotor is fixedlyarranged at one end of the angular contact ball bearing; the brake stator is fixedly arranged on the outer wall of the brake rotor; the brake stator mounting base is arranged on the outer wall of thebrake stator in a sleeved mode; and the guide key is fixedly arranged on the outer wall of the brake stator mounting base. The double-closed-loop structure is used for realizing the installation of abrake and a rotary transformer, and can bear bidirectional axial force.

Description

technical field [0001] The invention relates to the field of electromechanical actuators, in particular to a double closed-loop structure suitable for movable outer rotor motors. Background technique [0002] The movable outer rotor motor is a transmission form of the double-redundant electromechanical actuator, with the inner rotor motor as the main working part and the outer rotor part as the backup. When the inner rotor motor or actuator fails, the outer rotor motor outputs linear motion through overall translation to provide thrust to the output end. The brake is the locking device of the dual-redundancy electromechanical actuator, which is used to control the rotational movement of the motor. The resolver is a motor speed sensor, which is used to feed back the motor speed signal. [0003] Since the stator of the outer rotor motor is on the inside and the rotor is on the outside, it is difficult to install the brake and the resolver. [0004] The combined installation...

Claims

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Application Information

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IPC IPC(8): H02K7/106H02K7/102H02K11/21H02K7/08H02K5/173
CPCH02K5/173H02K7/083H02K7/102H02K7/106H02K11/21
Inventor 董辉立于志远郭喜彬牛涛倪永健
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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