A fail-safe damped anti-jam electromechanical actuator
An electromechanical actuator, fail-safe technology, applied in the field of electromechanical servo, can solve the problems of increasing the envelope size and weight of the actuator, achieve the effects of small appearance envelope and quality, release jamming, and broad application prospects
Active Publication Date: 2021-11-16
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to propose a design scheme of a fail-safe damping anti-jamming electromechanical actuator, which has the ability to switch between normal working mode and fault working mode, without significantly increasing On the basis of the envelope size and weight of the actuator, it can not only complete the rated thrust output, speed output and position output, but also use the external independent control method and unlocking mechanism to realize the problem of screw jamming, jamming and jamming. When the fault is removed, the electromechanical actuator becomes a damped floating telescopic state, which does not hinder the attitude control of the aircraft, thereby improving the safety and reliability of the flight control system
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[0056] Such as Figure 1-7 As shown, a fail-safe damping anti-jamming electromechanical actuator, the electromechanical actuator includes a rotatable single lug assembly 1, a damping actuator assembly 2, an unlocking motor assembly 3, a gear ring assembly 4, a planetary Roller screw pair 5, steel ball clutch assembly 6, servo motor assembly 7 and double lug assembly 8;
[0057] The rotatable single lug assembly 1 includes a single lug 1a, a steel ball 1b and a set screw 1c;
[0058] Such as Figure 5 , 6 As shown, the shape of the single lug 1a is a structure of two cylindrical surfaces intersecting. The inner side of the cylinder at one end is an internal thread hole, and the outer surface is two semi-circular groove structures; the inner side of the cylinder at the other end is a through hole structure, and there are holes around the through hole. Edge groove. The steel ball 1b is a spherical steel ball; the set screw 1c is a flat end cylindrical screw;
[0059] The two...
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The invention belongs to the technical field of electromechanical servo, in particular to a fail-safe damping anti-jamming electromechanical actuator. Compared with the structural layout and functional form of the traditional electromechanical actuator, the overall technical scheme of the fault isolation type anti-jamming electromechanical actuator proposed by the present invention has higher safety and reliability, and can relieve jamming, stagnation, and jamming. plug failure. On the basis of ensuring the main body technology of the original electromechanical actuator, the present invention has a smaller appearance envelope and quality, higher power density, and is conducive to popularization and application in more fields; this type of electromechanical actuator can be applied to auxiliary Flight control surfaces, auxiliary flight control surfaces for fighter jets, engine thrust vector control, and reusable flight control surfaces for space-to-ground reciprocating aircraft have broader application prospects.
Description
technical field [0001] The invention belongs to the technical field of electromechanical servo, in particular to a fail-safe damping anti-jamming electromechanical actuator. Background technique [0002] The electromechanical actuator is the core component of the electromechanical servo system. Its main function is to convert electrical energy into mechanical energy after receiving control instructions, overcome the external load torque, and achieve the predetermined speed and position. Most of the core bearing parts of electromechanical actuators choose ball screw pair or planetary roller screw pair. The working principle of multi-point contact of thread teeth of planetary roller screw pair has relatively larger bearing capacity and higher transmission accuracy, so it is preferred. parts. [0003] Electromechanical actuators are widely used in the field of servo technology, but in high-reliability and high-safety occasions, the application is greatly restricted. To meet h...
Claims
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IPC IPC(8): F16H37/12H02K7/06H02K7/116
CPCF16H37/124H02K7/06H02K7/116
Inventor 宋洪舟董辉立韩继文宋显成蒋孟龙
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS