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Electromechanical continuous stepless amplitude modulation linear actuator

A linear actuator and electromechanical technology, applied in the field of testing machines, to achieve remarkable energy-saving effects, simple structure, and reduced space

Inactive Publication Date: 2017-06-16
JILIN UNIV
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  • Abstract
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  • Claims
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  • Electromechanical continuous stepless amplitude modulation linear actuator
  • Electromechanical continuous stepless amplitude modulation linear actuator
  • Electromechanical continuous stepless amplitude modulation linear actuator

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Embodiment Construction

[0030] refer to figure 1 , the present invention is an electromechanical continuous stepless amplitude modulation linear actuator, the actuator 5 and the moving beam and its lifting and moving mechanism 1, the position fixing and locking mechanism 2, the specimen clamping device 4, and the specimen 3 Together they form the host of the fatigue machine. And the fatigue machine host realizes the energy-saving technology by combining with the electric control cabinet 6 . The electric control cabinet 6 designed by power electronic technology is used to recover the energy in the deformation recovery process of the test piece 3 .

[0031] refer to Figure 12 , the actuator 5 includes a body 8, an active power source transmission mechanism, a main crank slider mechanism, a left crank slider mechanism, a right crank slider mechanism, a wedge block traction mechanism and a traction power source transmission mechanism, wherein the main The No. 2 motor 43 in the power source transmissi...

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Abstract

The invention relates to the technical field of testing machines, in particular to an electromechanical continuous stepless amplitude modulation linear actuator. The actuator includes a body, a main power source transmission mechanism, main, left and right crank slider mechanisms, a wedge block traction mechanism and a traction power source transmission mechanism, and the main power source transmission mechanism and the traction power source transmission mechanism are connected with the body; The square shaft in the power source transmission mechanism is connected with the body bearing; the main, left and right eccentric disks in the main, left and right crank slider mechanisms are all provided with inner holes through which the square shaft passes; the wedge block traction mechanism and the right crank The slider mechanism is connected with the traction power source transmission mechanism; the traction power source transmission mechanism is fixed on the machine body. The invention adopts the movement of the mechanism driven by the control motor to directly act on the test piece, has large output load, high working frequency, free maintenance, high efficiency and remarkable energy saving. The design of the invention reduces the vibration caused by the main crank slider mechanism, and realizes the continuously adjustable crank length.

Description

technical field [0001] The invention relates to the technical field of testing machines, in particular to an electromechanical continuous stepless amplitude modulation linear actuator. Background technique [0002] In industrial production and scientific research, it is an important means to ensure the quality and performance of products by repeatedly applying force loads to the parts in the product composition, or even the whole product, to obtain the fatigue characteristics of the parts. In order to ensure the reliability of the product, it is also the most commonly used method to perform vibration tests on the components and the product as a whole. In the process of fatigue test and vibration test, linear actuator technology is one of the core technologies for test equipment to ensure test function and performance. [0003] Linear actuator, that is, the driving mechanism that directly generates linear reciprocating motion and force, is a power device for force load fatig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
Inventor 张学成丁赛华
Owner JILIN UNIV
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