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Rigidity testing device and method for electromechanical actuator

An electromechanical actuator and testing device technology, applied in the testing of machine/structural components, measuring devices, elasticity testing, etc. The effect of high measurement accuracy

Active Publication Date: 2018-02-23
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide an electromechanical actuator stiffness testing device and method, which solves the problem that the experimental stiffness value does not match the theoretical stiffness value, and significantly reduces the actual stiffness of the actuator itself There will be deviations from the theory

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  • Rigidity testing device and method for electromechanical actuator
  • Rigidity testing device and method for electromechanical actuator
  • Rigidity testing device and method for electromechanical actuator

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail,

[0033] The present invention proposes a kind of electromechanical actuator stiffness testing device and method (such as figure 1 As shown), by increasing the stiffness of the test bench body (15) itself, the deformation of the test bench itself before the electromechanical actuator under test is not deformed, and the double guide rails (9) are set to prevent the weak stiffness of the test bench itself from being unfavorable to the stiffness test. influences. The symmetrical layout of lead screw II (5) and lead screw I (16) on both sides of the test piece is symmetrically manually loaded to avoid damage to the electromechanical actuator itself due to too much active loading control force. Use laser sensor I (10) and laser sensor II (11) with high displacement measurement accuracy, and place laser sensor I (10) and laser sensor II (11) on a paral...

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Abstract

The invention relates to a rigidity testing device and method for an electromechanical actuator. The rigidity of a test stand body is improved to prevent deformation of the test stand body before deformation of a tested electromechanical actuator. With dual guide rails, any adverse effect on the rigidity test by the low rigidity of the test stand body is prevented. Because of a symmetric hand-operated loading mode distributing a lead screw I and a lead screw II at two sides of a tested piece symmetrically, a phenomenon that the tested electromechanical actuator is damaged due to the too largeactive loading control force is avoided. A laser sensor I and a laser sensor II that have high displacement measurement precision are employed and are arranged on one parallel line, so that the measurement accuracy is improved; the lead screw II and the lead screw I that are T-shaped large-screw-pitch threads and have self-locking functions cooperate with a lead screw connecting gear I, a lead screw connecting gear II, a boost gear, and a boost gear force arm to realize loading forces; and on the basis of direct series connection of a pull pressure sensor with the inside of the tested electromechanical actuator, the loading force testing becomes accurate.

Description

technical field [0001] The invention relates to an electromechanical actuator stiffness test device and method, and is especially suitable for the electromechanical actuator stiffness test. Background technique [0002] The electromechanical actuator has its very prominent advantages, so the development speed is fast, and the application is also expanding rapidly. Now it is found that the stiffness of the electromechanical actuator has a certain influence on its system control. [0003] The stiffness of the electromechanical actuator is used to determine the parameters of the control system. Most of the stiffness is a theoretical value, but the actual stiffness of the actuator itself will deviate from the theory. Contents of the invention [0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide an electromechanical actuator stiffness testing device and method, which solves the problem that the experimental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00
CPCG01M5/005
Inventor 侯占林刘伟崔佩娟张少军肖翀李红
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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