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Test device

A technology of testing equipment and lead screw, applied in the field of testing, can solve the problems of easily exceeding the maximum elastic deformation of structural parts, failure to return to the original shape, large force, etc., and achieve the effect of light weight, long service life and stable force

Inactive Publication Date: 2016-03-16
BEIJING AUTOMOBILE RES GENERAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the force of the above-mentioned testing equipment is large and unstable, and it is easy to exceed the maximum elastic deformation of the structural member, and cannot return to the original state.

Method used

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Embodiment Construction

[0026] The specific implementation manner of the present invention will be further described in detail below with reference to the drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like figure 1 As shown, an embodiment of the present invention provides a testing device for testing the ability of a structural member to resist deformation. The test equipment includes a driving mechanism 1, a force sensor 2 and a displacement sensor 3. The driving mechanism 1 is used to apply a force to the structural member, and the force sensor 2 is used to measure the force applied by the driving mechanism 1 to the structural member, and the displacement The sensor 3 is used to measure the deformation of the structural member under the force exerted by the driving mechanism 1 , and evaluate the ability of the structural member to resist deformation according to the magnitude...

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Abstract

The invention relates to the field of test technology and particularly discloses a test device used for testing deformation resisting ability of a structural member. The test device comprises a spiral elevating mechanism, a force transducer and a displacement sensor. The spiral elevating mechanism comprises a lead screw which is capable of carrying out reciprocating linear movement. When the lead screw moves, one end of the lead screw is driven to impose acting force on the structural member. The force sensor is used for measuring size of the acting force imposed by the lead screw on the structural piece. The displacement sensor is used for measuring deformation quantity of the structural piece under the acting force imposed by the lead screw. By use the size of the acting force and the deformation quantity of the structural piece, the deformation resisting ability of the structural piece can be evaluated. The spiral elevating mechanism is advantageous in that the spiral elevating mechanism is smooth in acting force, small in size, multifunctional, light, noise-free, compact in structure, convenient to install, flexible to use, wide in power sources, high in transmission efficiency and long in service lifetime.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a testing device for testing the ability of structural parts to resist deformation. Background technique [0002] For elastic structural parts, before they are applied to the product, their ability to resist deformation needs to be tested to ensure the performance of the product. In the prior art, a force is directly applied to the structural member through a driving source such as hydraulic pressure or air pressure, and the magnitude of the force and the elastic deformation of the structural member under the applied force are obtained to test the deformation resistance of the structural member Ability. However, the force of the above-mentioned testing equipment is relatively large, and it is not stable, and it is easy to exceed the maximum elastic deformation of the structural member, so it cannot be restored to its original shape. Contents of the invention [0003] The inve...

Claims

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Application Information

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IPC IPC(8): G01M5/00
CPCG01M5/005
Inventor 王帅仝海军蔡运强韩畅徐经林任重远周文件滕海杰阮志刚
Owner BEIJING AUTOMOBILE RES GENERAL INST