Rigidity testing device and system
A test device and test system technology, applied in the direction of measuring device, elastic test, machine/structural component test, etc., can solve the problems of large size, inflexible use, complex structure, etc., and achieve small size, easy to carry, high The effect of flexibility
Active Publication Date: 2015-10-07
BEIJING AUTOMOBILE RES GENERAL INST
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Problems solved by technology
[0003] In order to solve the above-mentioned technical problems, the present invention provides a stiffness testing device and system, which solves the problems in the prior art that the equipment for simultaneously measuring force and displacement is complex in structure, large in size, and cannot be used flexibly
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Embodiment
[0022] Such as figure 1 As shown, the embodiment of the present invention provides a stiffness test device, which specifically includes: a test bracket 1 , a mounting part 2 , a displacement sensor 3 , a force applying part 4 and a pressure sensor 5 . Wherein, the test bracket 1 includes a first rod body 11, a second rod body 12, a third rod body 13 and a fourth rod body 14 arranged in parallel, the mounting part 2 is fixed on the first rod body 11 and the second rod body 12, and the displacement sensor 3 is installed on On the mounting part 2; the force application part 4 is arranged below the displacement sensor 3, and is slidably connected with the third rod body 13 and the fourth rod body 14. In addition, the force application part 4 can extend along the third rod body 13 and the fourth rod body 14 direction sliding, the displacement sensor 3 can test the displacement of the force applying part 4 . The pressure sensor 5 is arranged on the force application part 4 , and th...
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The invention discloses a rigidity testing device and system. The device comprises a testing support, installation parts, displacement sensors, a force applying part and a pressure sensor, wherein the testing support comprises a first rod body, a second rod body, a third rod body and a fourth rod body which are arranged in parallel; the installation parts are fixed on the first rod body and the second rod body; the displacement sensors are installed on the installation parts; the force applying part is connected with the third rod body and the fourth rod body in a sliding mode and can slide along the extension directions of the third rod body and the fourth rod body, wherein the displacement sensors are positioned at one side of the force applying part; the pressure sensor is connected with the force applying part. The rigidity testing device can simultaneously test the pressure and the generated displacement of a to-be-tested element, so that the rigidity of the to-be-tested element is tested; the rigidity testing device is simple in structure, is small in size and is easy to carry.
Description
technical field [0001] The invention relates to the field of auto parts testing, in particular to a stiffness testing device and system. Background technique [0002] Stiffness indicates the ability of a material, component or structure to resist deformation under external force. The higher the stiffness, the more "hard" the object appears. The result will affect the service life of the component and the natural frequency and other aspects of performance. The calculation of the stiffness value requires two physical quantities, force and displacement. It is more common in existing test equipment that can measure force and displacement separately, such as a hand-held Although dynamometers and dial indicators are relatively light, they can only measure one of the physical quantities. It is very difficult to use such two independent devices together; and those that can measure force and displacement at the same time are some Large-scale equipment such as MTS equipment is mostly...
Claims
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IPC IPC(8): G01N3/08G01M5/00
Inventor 王帅滕海杰仝海军周文件韩畅任重远
Owner BEIJING AUTOMOBILE RES GENERAL INST