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Moment rotary rigidity high-low temperature testing device

A test device, high and low temperature technology, applied in the direction of measuring device, elastic test, machine/structural component test, etc.

Active Publication Date: 2021-01-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is no design for the extreme environmental conditions of high and low temperature ±100°C in the existing torque rotation stiffness test. Therefore, in order to meet the performance test requirements of complex precision mechanisms in extreme space environments, a torque rotation stiffness that can be realized in extreme environments is developed. Performance testing is of great significance to the development of space agency ground testing technology

Method used

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  • Moment rotary rigidity high-low temperature testing device
  • Moment rotary rigidity high-low temperature testing device
  • Moment rotary rigidity high-low temperature testing device

Examples

Experimental program
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Embodiment Construction

[0023] see Figure 1-Figure 5 As shown, a high and low temperature test device for torque rotation stiffness in this embodiment includes a basic platform 1, an integrated torsion measurement module 2, an overload protection module 3, an adjustment module 4 and a support module 5, and the overload protection module 3 is a magnetic powder brake Overload protection module;

[0024] The overload protection module 3, the support module 5, the high and low temperature box 6 and the adjustment module 4 are installed on the basic platform 1, the high and low temperature box 6 is located between the two support modules 5, and the torsional measurement integrated module 2 is installed on the adjustment module 4, The torsion measurement integrated module 2 includes a torsion drive module 2-1, a dynamic torque sensor 2-2 and an angle encoder 2-3, and the torsion drive module 2-1, the overload protection module 3 and the support module 5 are coaxially arranged , the transmission shaft 8 b...

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Abstract

The invention relates to a moment rotary rigidity high-low temperature testing device, which comprises a foundation platform, a driving and testing integrated module, an overload protection module, anadjusting module and support modules. The overload protection module is a magnetic powder brake overload protection module; the overload protection module, the support modules, a high-low temperaturebox and the adjusting module are installed on the foundation platform, the high-low temperature box is located between the two support modules, the driving and testing integrated module is installedon the adjusting module, and a transmission shaft between a torsion driving module and the support module is provided with a dynamic torque sensor and an angle encoder. Box penetrating shafts connected with the output end of the torsion driving module and the output end of the overload protection module are supported by the support modules to rotate, the side walls of the high-low temperature boxare each provided with an annular elastic sealing gasket, and the annular elastic sealing gaskets are located in grooves of air sealing rings arranged on the box penetrating shafts in a sleeving modeand make friction contact with the bottom faces of the grooves. The air seal rings are circular rings formed by connecting two metal semi-rings in a butt joint mode. The device adapts to high and lowtemperature tests, and the test is flexible and convenient.

Description

technical field [0001] The invention relates to a stiffness testing device, in particular to a torque rotation stiffness high and low temperature testing device. Background technique [0002] During the development and implementation of major aerospace engineering fields such as space station construction, lunar exploration projects, and Mars exploration, a large number of sophisticated and complex mechanisms and components need to simulate extreme environments such as space vacuum, high and low temperature on the ground, and perform performance tests on the tested parts and reliability assessment. [0003] There is no design for the extreme environmental conditions of high and low temperature ±100°C in the existing torque rotation stiffness test. Therefore, in order to meet the performance test requirements of complex precision mechanisms in extreme space environments, a torque rotation stiffness that can be realized in extreme environments is developed. Performance testin...

Claims

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Application Information

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IPC IPC(8): G01M5/00
CPCG01M5/005
Inventor 金弘哲刘玉斌赵杰王彬峦刘章兴乔凤斌刘秀芳
Owner HARBIN INST OF TECH
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