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High-low-temperature mechanical performance testing device for stretching mechanism

A technology of stretching mechanism and testing device, which is applied to the testing of machines/structural components, measuring devices, instruments, etc., and can solve problems such as the inability to achieve active follow-up and the need to improve test efficiency

Inactive Publication Date: 2017-06-16
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the environment of high and low temperature or weightlessness in space, it is particularly important to test the mechanical load-carrying performance and transmission efficiency characteristics of the large-scale truss extension mechanism during the deployment process. , the truss is driven by a servo motor to expand. While the truss is unfolded, in order to balance the gravity of the large truss, the prior art has used a manual hanging gravity balance device to balance the gravity. However, in the prior art, during the truss expansion process Active follow-up and active adjustment of loading force functions cannot be realized in the system, and the test efficiency needs to be improved

Method used

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  • High-low-temperature mechanical performance testing device for stretching mechanism
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  • High-low-temperature mechanical performance testing device for stretching mechanism

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Such as Figure 1~2 As shown, the present invention includes a truss storage unit 43, a force loading unit 44, a force loading follower unit 47, a force loading transmission frame body 32 and a gravity balance trolley 7, wherein the force loading unit 44 is movably installed on the force loading transmission On the truss body 32, the force loading unit 44 is driven and moved by the force loading follow-up unit 47, and the truss 6 to be tested is arranged in the truss storage unit 43. When the truss 6 is unfolded for testing, the truss 6 The free end is connected with the force loading unit 44, and the part of the truss 6 protruding from the truss storage unit 43 is lifted and supported by the gravity balance trolley 7, and the force loading unit 44 and the gravity balance trolley 7 follow the truss 6 Unfold movement, the pressure sensor 9 for measurin...

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Abstract

The invention relates to a high and low temperature mechanical performance testing system, specifically a high and low temperature mechanical performance testing device for a stretching mechanism for testing the deployment performance of a large truss stretching mechanism in a high and low temperature and space weightless environment, including a truss storage unit and a force loading unit , a force-loading follower unit, a force-loading transmission frame and a gravity balance trolley, wherein the force-loading unit is movably installed on the force-loading transmission frame, the force-loading unit is driven to move by the force-loading follow-up unit, and the truss is arranged on On the truss storage unit, the free end of the truss is connected to the force loading unit, and the part of the truss protruding from the truss storage unit is lifted and supported by the gravity balance trolley. A pressure sensor, a force spring and a displacement sensor for measuring the compression of the force spring are provided. The invention can realize functions such as active following and active adjustment of loading force during testing, and the testing efficiency is high.

Description

technical field [0001] The invention relates to a high and low temperature mechanical performance testing system, in particular to a high and low temperature mechanical performance testing device for a stretching mechanism for testing the deployment performance of a large truss stretching mechanism in a high and low temperature and space weightless environment. Background technique [0002] In the environment of high and low temperature or weightlessness in space, it is particularly important to test the mechanical load-carrying performance and transmission efficiency characteristics of the large-scale truss extension mechanism during the deployment process. , the truss is driven by a servo motor to expand. While the truss is unfolded, in order to balance the gravity of the large truss, the prior art has used a manual hanging gravity balance device to balance the gravity. However, in the prior art, during the truss expansion process It is still impossible to realize the func...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
CPCG01M99/007
Inventor 徐志刚李峰贺云王军义崔奇峰俞旦
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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