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Anti-rotation device for lower chuck of electro-hydraulic servo testing machine

An electro-hydraulic servo and testing machine technology, used in measuring devices, instruments, scientific instruments, etc., can solve problems such as instability, and achieve the effects of easy processing, scientific design, and expansion of application scope.

Inactive Publication Date: 2016-05-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, the hydraulic chuck is supplied with oil by the hydraulic oil pipe. The hydraulic oil pipe is an elastic body, and its stiffness changes with the pressure. It is unstable during the static and dynamic tests. As the test progresses, it has Tendency to drive chuck rotation

Method used

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  • Anti-rotation device for lower chuck of electro-hydraulic servo testing machine
  • Anti-rotation device for lower chuck of electro-hydraulic servo testing machine

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Embodiment Construction

[0017] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0018] An anti-rotation device for the lower chuck of an electro-hydraulic servo testing machine, comprising a main support vertical bending plate 1, a bearing positioning shaft 6, a bearing 7, a bearing baffle 8 and a fixed baffle 3, the main support vertical bending plate passes through the The board fixing screw 2 is installed on the table 13 . Bearing positioning shafts are two sets of upper and lower. The axes of the upper and lower bearing positioning shafts are staggered in the vertical direction by a certain distance and installed on the lower chuck 12 of the electro-hydraulic servo testing machine. Each bearing positioning shaft has a Set a bearing, make a vertical slotted hole 5 on the vertical bent pl...

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Abstract

The invention relates to an anti-rotation device for the lower chuck of an electro-hydraulic servo testing machine. The anti-rotation device is prepared by assembling a main support vertical bent plate, a bearing positioning shaft, a bearing, a bearing baffle plate, and a fixed baffle plate. The anti-rotation device has the advantages of scientific design, simple structure, low cost, and easiness in manufacturing and processing, and is used for the lower chuck of an electro-hydraulic servo testing machine. By arranging the anti-rotation device on the lower chuck of an electro-hydraulic servo testing machine, the additional torque of the lower chuck can be effectively eliminated, the application range of the testing machine is enlarged, the precision of tests can be guaranteed, and the anti-rotation device has a wide popularization and application value and is capable of improving the precision of fatigue tests of thin plates with high small rigidity and other cross section forms.

Description

technical field [0001] The invention relates to the technical field of electro-hydraulic servo testing machines, in particular to an anti-rotation device for the lower chuck of the electro-hydraulic servo testing machine. Background technique [0002] The electro-hydraulic servo testing machine is an experimental equipment used to test the tensile, compression, low-cycle and high-cycle fatigue of materials, components and even the dynamic fatigue life of the whole machine. It is widely used in aerospace, vehicles, ships, construction, machinery, and institutions of higher learning. schools and research institutes. [0003] The hydraulic actuator is the test execution part of the electro-hydraulic servo testing machine, which exerts control on the test object and can control the speed, direction, displacement and force of the load. The hydraulic actuator is connected to the lower chuck of the electro-hydraulic servo testing machine, because the hydraulic actuator itself does...

Claims

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Application Information

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IPC IPC(8): G01N3/04
CPCG01N3/04G01N2203/04
Inventor 徐家福李勇沈珉王忠保富东慧侯振德
Owner TIANJIN UNIV
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