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Electromechanical actuator and control method thereof

An electromechanical actuator and control method technology, applied in the field of electromechanical servo, can solve problems such as jamming or jamming, reduce the reliability of the electromechanical actuation system, limit the application expansion in the aviation field, etc., achieve large telescopic stroke and shorten load transmission path, reducing the effect of key connections

Active Publication Date: 2018-01-19
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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  • Electromechanical actuator and control method thereof
  • Electromechanical actuator and control method thereof
  • Electromechanical actuator and control method thereof

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specific Embodiment

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

[0055] Among them, the master position servo motor includes: a first stator 12, a first winding 2, a first rotating shaft 11, a first magnetic steel 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 . Wherein the first stator 12 and the first winding 2 are assembled by winding, the first stator 12 and the first moto...

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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 servo, and in particular relates to a telescopic double-redundancy electromechanical actuator with a nut used as a motor rotor. Background technique [0002] In the field of aviation, the flight control system has extremely high requirements on the reliability and safety of the actuator. It is required that when the actuator fails, the aircraft can still fly smoothly. At present, most aircraft use electro-hydraulic servo systems and electromechanical servo systems. The hydrostatic servo system is used as the end effector of the flight control system. [0003] Compared with hydraulic servo mechanisms, electromechanical actuation systems are small in size, light in weight, high in energy utilization, simple in testing, and more convenient in maintenance, and are gradually becoming the development trend of power-by-wire actuation systems in the future. However, the core of the movement and...

Claims

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Application Information

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Patent Type & Authority Applications(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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