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Highly integrated electromechanical actuator

An electromechanical actuator, highly integrated technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of poor anti-interference performance, low transmission efficiency, low motion accuracy, etc., to achieve accurate measurement, high transmission efficiency, The effect of high measurement accuracy

Active Publication Date: 2014-01-29
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, the existing electromechanical actuators have the disadvantages of large volume, loose structure, low motion precision, low transmission efficiency, high cost, and poor anti-interference performance.

Method used

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  • Highly integrated electromechanical actuator

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0020] see figure 1 , a highly integrated electromechanical actuator, including: a direct drive motor, a ball screw, an LVDT and a resolver arranged in a main frame (3). The direct drive motor includes a motor stator (4), a motor rotor (5) and a rotating shaft (6). The ball screw consists of a round nut (7) and a screw shaft (9). The LVDT may include an LVDT casing (19), an LVDT iron core (20), an LVDT extension rod and an LVDT fixing sleeve. The resolver includes a resolver stator (16) and a r...

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Abstract

The invention provides a highly integrated electromechanical actuator comprising a direct drive motor, a ball screw and an LVDT (linear variable differential transformer) which are arranged in a main frame. The direct drive motor comprises a motor stator, a motor rotor and a rotary shaft which are connected sequentially, and the motor rotor and the rotary shaft are produced integrally. The ball screw comprises a round nut and a screw shaft, and the screw shaft is connected to the rotary shaft through the round nut. The LVDT comprises an LVDT fixing sleeve, an LVDT iron core, an LVDT shell and an LVDT extending rod. The LVDT shell is arranged in the screw shaft and is connected to a left end cover through the LVDT fixing sleeve, the LVDT extending rod is arranged in the LVDT shell and is connected to the screw shaft, and the LVDT iron core is arranged in the LVDT shell and is connected with the LVDT extending rod. The highly integrated electromechanical actuator has the advantages of simple structure, convenience for mounting, small size, light weight, strong bearing capacity, high moving accuracy and transmission efficiency, good anti-jamming performance and low cost.

Description

technical field [0001] The invention relates to an electromechanical actuator, in particular to a highly integrated electromechanical actuator with small volume, good anti-interference performance and high motion precision. Background technique [0002] There are two types of power-by-wire actuators: electromechanical actuators and electrohydrostatic actuators. The electromechanical actuators are powered by motors, and then go through the transmission parts to the actuators, and finally convert the rotary motion into linear reciprocating motion. The electric hydrostatic actuator needs the support of the hydraulic transmission device to convert the rotational motion of the motor into the linear output of the actuator. The speed response and motion accuracy are poor, and the oil is easy to leak and pollute the environment. [0003] In the past, the motor and the rotating shaft of the electromechanical actuator were separately installed, and the motor and the rotating shaft wer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/06
Inventor 刘品宽吴静陈军委李玉洁
Owner SHANGHAI JIAO TONG UNIV
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