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An electromechanical actuator and its control method

An electromechanical actuator and control method technology, applied in the electromechanical servo field, can solve the problems of restricting the application expansion in the aviation field, blocking or jamming, reducing the reliability of the electromechanical actuation system, etc. Stroke, the effect of reducing the key connection

Active Publication Date: 2019-12-20
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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Problems solved by technology

However, the core of the movement and power conversion of the electromechanical servo system depends on the precision transmission mechanism. Usually, ball or roller screw is used as the transmission mechanism to output thrust, which is prone to problems such as jamming or jamming, forming a single point of failure, which greatly reduces The reliability of the electromechanical actuation system is limited, which limits the application expansion for the aviation field

Method used

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  • An electromechanical actuator and its control method
  • An electromechanical actuator and its control method
  • An electromechanical actuator and its control method

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specific Embodiment

[0054] Such as figure 1 with 2 As shown, the embodiment of the present invention provides a telescope-type double redundancy electromechanical actuator, which mainly includes the following components: main position servo motor (first motor assembly 100), main position transmission mechanism, main position brake, and main position control The driver, the main connection lug, the sub-position servo motor (second motor assembly 200), the sub-position transmission mechanism, the sub-position brake, the sub-position control driver, and the sub-position connection lug.

[0055] Among them, the main servo motor includes: a first stator 12, a first winding 2, a first rotating shaft 11, a first magnet 3, a first stainless steel sleeve 4, a first balance ring 5, a first motor housing 9, The first motor front end cover 7 and the first support bearing 8. The first stator 12 and the first winding 2 are assembled by winding, the first stator 12 and the first motor housing 9 are fitted by inter...

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Abstract

The embodiment of the invention provides an electromechanical actuator and a control method thereof, and belongs to the technical field of electromechanical servo. The actuator comprises a first motorassembly, a second motor assembly, a first actuating rod and a second actuating rod, wherein the first actuating rod is driven by the first motor assembly, the second actuating rod is driven by the second motor assembly, the first actuating rod is of a hollow structure, the first actuating rod and the second actuating rod move relative to each other under driving of the first motor assembly and / or the second motor assembly, and the second actuating rod partially moves in a cavity of the first actuating rod. By the actuator, dual-redundancy control can be achieved, a normal working mode and abackup working mode can be set, and switching between the working modes is performed according to a special fault; and compared with a hydraulic servo system and an electromechanical hydrostatic servosystem, the actuator has the advantages that the actuator has more flexible and reliable redundancy management mode, and the problem of a fault caused by a roller or a ball screw which is stucken isprevented.

Description

Technical field [0001] The invention belongs to the technical field of electromechanical servos, and in particular relates to a nut as a motor rotor telescope type double redundant electromechanical actuator. Background technique [0002] In the aviation field, the flight control system has extremely high requirements for the reliability and safety of the actuators. It is required that the aircraft can still fly smoothly when the actuator fails. At present, most aircrafts use electro-hydraulic servo systems and electromechanical systems. The hydrostatic servo system serves as the end effector of the flight control system. [0003] Compared with the hydraulic servo mechanism, the electromechanical actuation system has the advantages of small size, light weight, high energy efficiency, simple testing, and more convenient maintenance. It is gradually becoming the development trend of power electric actuation systems in the future. However, the movement and power conversion core of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/06H02K7/116
Inventor 宋洪舟于志远董辉立刘伟徐强
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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