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Dual-redundancy electromechanical actuator

An electromechanical actuator, double redundancy technology, applied in the direction of motor vehicles, electromechanical devices, electric components, etc., can solve problems such as transmission mechanism jamming faults

Active Publication Date: 2021-05-28
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the jamming failure of the transmission mechanism caused by the gear transmission failure of the electromechanical actuator in the existing aerospace vehicle, the present invention designs a dual-redundancy electromechanical actuator

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Embodiment Construction

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] see figure 1 , figure 2 , Figure 2A , Figure 2B As shown, the present invention designs a dual redundant electromechanical actuator that can be applied to aerospace vehicles, including a base 3, a left support plate 4A, a right support plate 4B, a cover body 5, a six-phase fault-tolerant motor 1, Planetary roller screw assembly 2, left end drive assembly and right end drive assembly. Wherein the structure of the left end transmission assembly is the same as that of the right end transmission assembly.

[0050] exist figure 1 Among them, the lower part of the cover body 5 is fixed on the base 3 through the left support plate 4A and the right support plate 4B placed in parallel. The dual-redundancy electromechanical actuator designed in the present invention can be fixed on the aerospace vehicle through the base 3 . A six-phase fault-tolerant m...

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Abstract

The invention discloses a dual-redundancy electromechanical actuator which is composed of a base (3), a left supporting plate (4A), a right supporting plate (4B), a cover body (5), a six-phase fault-tolerant motor (1), a planetary roller lead screw assembly (2), a left end transmission assembly and a right end transmission assembly. The left end transmission assembly and the right end transmission assembly are the same in structure. The transmission assembly comprises a helical spur gear, a rotating shaft, an idle gear and an electromagnetic brake. According to the invention, the six-phase fault-tolerant motor (1) is matched with the helical gear to realize linear output of the planetary roller screw assembly (2). Through the left end transmission assembly and the right end transmission assembly which are installed at the two ends of the motor shaft (1A) respectively, the size and the weight of the electromechanical actuator are reduced under the independent transmission mode of the left end and the right end.

Description

technical field [0001] The invention relates to an electromechanical actuator suitable for use, more particularly, a dual-redundancy electromechanical actuator applied to aerospace vehicles. Background technique [0002] With the development of aerospace vehicle technology, the full electrification of aerospace vehicles has gradually become the future development direction. Electromechanical actuators generate attitude adjustment torque through nozzle thrust vector or air rudder, which is an important part of ensuring the stable flight of aerospace vehicles. The reliability of electromechanical actuators has received more and more attention. [0003] "Double Redundancy Steering Gear without Load Balance Control and Its Nonlinear Compensation Control" published in Volume 41, Issue 5, "Micro-motor" in 2008, by Jiang Zhihong and Zhu Jihong. This document introduces the structure of two-degree redundant electric actuator applied to aircraft. The two-degree redundant electric a...

Claims

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Application Information

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IPC IPC(8): H02K7/10H02K7/114H02K7/116H02K7/06H02K11/20H02K11/21H02K3/28F16H25/22F16H25/24B64G1/24
CPCB64G1/244F16H25/2252F16H25/24H02K3/28H02K7/06H02K7/10H02K7/114H02K7/116H02K11/20H02K11/21
Inventor 严亮王进
Owner BEIHANG UNIV
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