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Dual-redundancy electromechanical actuator based on motor speed synthesis

An electromechanical actuator and speed synthesis technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of very high control accuracy of the control unit, large moment of inertia, very high processing accuracy and assembly accuracy, and achieve The effect of small size, low precision requirement and high power density ratio

Inactive Publication Date: 2017-12-01
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

[0003] The technical problem to be solved in the present invention is: the existing solution to the phenomenon of power disputes and fault isolation of dual-redundant electromechanical actuators will bring about very high requirements on the control accuracy of the control unit, or very high requirements on machining accuracy and assembly accuracy. High, and the problem of large moment of inertia

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  • Dual-redundancy electromechanical actuator based on motor speed synthesis
  • Dual-redundancy electromechanical actuator based on motor speed synthesis

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Embodiment Construction

[0021] A dual-redundancy electromechanical actuator based on motor speed synthesis of the present invention will be described in detail below with reference to the drawings and embodiments.

[0022] The electromechanical actuator of the present invention outputs a single motion after the speed is synthesized by the motion input of the dual motors through the differential designed based on the planetary gear reducer, such as figure 1 As shown, it specifically includes: a first motor 1 and a second motor 2 for providing rotation. Electromagnetic brakes 3 are installed at the tails of the first motor 1 and the second motor 2 for motor braking. The rotating shafts of the two electromagnetic brakes 3 are respectively fixedly connected to the rotating shafts of the first motor 1 and the second motor 2 through radial pins. A first motor gear 4 and a second motor gear 5 are respectively installed at the ends of the output shafts of the first motor 1 and the second motor 2 . The firs...

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Abstract

The invention belongs to the technical field of electromechanical actuators, and specifically relates to a dual-redundancy electromechanical actuator based on motor speed synthesis. The dual-redundancy electromechanical actuator based on motor speed synthesis comprises a first motor, a second motor, an electromagnetic brake, a first motor gear, a second motor gear, a planetary reducer, an idler gear, a ball screw pair and a linear potentiometer. The dual-redundancy electromechanical actuator of the invention solves problems that a force-fighting phenomenon and a fault isolation solution of the existing dual-redundancy electromechanical actuator bring about very high requirements on the control precision of a control unit or very high requirements on the machining accuracy and the assembly accuracy, and that the moment of inertia is great. The dual-redundancy electromechanical actuator provided by the invention is not only small in size, but also low in inertia and low in requirement on the precision of the control unit, thereby being capable of meeting development requirements of an unmanned aerial vehicle telematic actuation system on the aspects of miniaturization, light weight, high power density ratio, high efficiency and high-precision transmission.

Description

technical field [0001] The invention belongs to the technical field of electromechanical actuators, in particular to a dual-redundancy electromechanical actuator based on motor speed synthesis. Background technique [0002] Dual-redundant electromechanical actuators are widely used in UAV control systems to improve the reliability of UAV missions. At present, a key technology facing the development of dual-redundant electromechanical actuators is how to solve the force dispute phenomenon and fault isolation problems caused by the output motion synthesis of dual motors. The usual solutions of relevant research institutes at home and abroad are the clutch control scheme through torque synthesis and the differential epicyclic gear train control scheme through mechanical motion synthesis. The former needs to solve the phenomenon of load balancing and force disputes, and because the motion synthesis is a mechanically rigid structure, the control accuracy of the control unit is r...

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Application Information

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IPC IPC(8): H02K7/06H02K7/116H02K7/102F16H37/12
CPCH02K7/06F16H37/124H02K7/1021H02K7/116
Inventor 王怀王连丛熊官送卢扬王瑛琦卢红波张秀林
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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