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A high power-to-weight ratio integrated electromechanical servo actuator

A technology of electromechanical servo and actuating devices, applied in the direction of electromechanical devices, transmission devices, electric components, etc., can solve the problems of low load capacity, small power-to-weight ratio, low integration, etc., achieve high space utilization, improve power Weight ratio, the effect of improving control accuracy

Inactive Publication Date: 2019-07-26
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure of existing electromechanical servo actuators has disadvantages such as heavy weight, low integration, small power-to-weight ratio, and low carrying capacity.

Method used

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  • A high power-to-weight ratio integrated electromechanical servo actuator
  • A high power-to-weight ratio integrated electromechanical servo actuator
  • A high power-to-weight ratio integrated electromechanical servo actuator

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0028] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a high power-to-weight ratio integrated electromechanical servo actuator with high power-to-weight ratio, strong bearing capacity and small installation space.

[0029] refer to figure 1 , 2 , 3, a high power-to-weight ratio integrated electromechanical servo actuator, comprising: front cover (1); front shell (2); main shell (3); aviation plug (4); rear shell (5 ); Nut (6.1); Roller assembly (6.2); Lead screw (6.3); Thrust roller bearing (7); Cylindrical roller bearing (8); Motor stator (9.1); Magnetic patch (9.2); Rotation type encoder (10); loosening nut (11); flange (12); guide rod (13); linear displacement sensor body (14.1); magnetic ring (14.2); connecting screw (15).

[0030] The joint bearing on the rear housing (5) is connected to...

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Abstract

The invention discloses a high-power-to-weight-ratio integrated electromechanical servo actuation device which comprises matched devices like an integrated servo motor, a planet ball screw pair, a rotary coder, a linear displacement sensor and a shell. A motor stator is fixed on a main shell, and the motor stator and a magnetic chip at the tail end of a screw form the integrated servo motor which drives the screw to rotate; a nut converts rotating motion of the screw into linear motion and pushes a load to output linear motion, the linear displacement sensor detects displacement in real time, the rotary coder is used for detecting rotating angle of the screw, and a guide rod can prevent the nut from rotating and plays a role in guiding; a guide ring is mounted in a front shell hole to play a role in guiding and supporting the nut, and the guide ring and a cylinder roller bearing at the rear end of the screw jointly guarantees coaxiality. The high-power-to-weight-ratio integrated electromechanical servo actuation device has the advantages of high power to weight ratio, small size, high transmission efficiency, high loading capacity and high reliability, and novel idea and technical guarantee are provided for development of electric push rods and multi-electrified / full-electrified aircrafts.

Description

technical field [0001] The invention is an electric servo actuating device, which is especially applied to electric pushrods, multi-electric / full-electric aircraft rudder surface servo control systems, and belongs to the technical fields of electromechanical servo technology, aerospace machinery, electronics and control. Background technique [0002] Today's servo actuation system mainly has two power sources. One is to use traditional hydraulic servo actuators for hydraulic energy supply, that is, through the conversion of high and low pressure oil to perform work and output linear motion, thereby pushing the load. This kind of servo actuation The actuator is suitable for occasions with large output force, and the volume and weight are relatively large; the other is the power electric drive actuator supplied by electric energy, that is, the mechanism of the electromechanical servo is used to drive the hydraulic cylinder or the lead screw pair. This method can be applied to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/06F16H25/22
CPCF16H25/2252H02K7/06
Inventor 付永领郑世成韩旭李林杰林自旺智建康
Owner BEIHANG UNIV
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