Measuring method of a spring stiffness coefficient measuring instrument
A technology of stiffness coefficient and measurement method, which is applied in the field of physical experiments, can solve the problems of troublesome testing of spring stiffness coefficient, cumbersome work, and low efficiency
Inactive Publication Date: 2019-09-13
SHANGLUO UNIV
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Problems solved by technology
In the prior art, it is cumbersome to test the stiffness coefficient of the spring, the work is cumbersome, the efficiency is low, and it is not accurate enough. Therefore, there is room for improvement
Method used
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[0022] The present invention will be further described below in conjunction with accompanying drawing:
[0023] Such as figure 1 Shown: a kind of spring stiffness coefficient measuring instrument of the present invention comprises spring dynamometer 1, scale 2, the first fixed pulley 3, the first funnel 4, the second fixed pulley 5, the second funnel 6, salt tank 7 and The spring 8 under test, one end of the spring dynamometer 1 is fixed, the other end of the spring dynamometer 1 is connected between the second fixed pulley 5 and the second funnel 6, the spring under test 8 is fixed to one end of the scale 2, and the other end of the measured spring 8 is connected to the first funnel 4 through the first fixed pulley 3, and the first funnel 4 is located at the second directly above the funnel 6, the salt tank 7 is located directly below the second funnel 6, and switches are provided on the first funnel 4 and the second funnel 6.
[0024] The testing method of spring stiffness...
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The invention discloses a measuring instrument for the stiffness coefficient of a spring. The measuring instrument comprises a spring force measuring device, a graduated scale, a first fixed pulley, a first hopper, a second fixed pulley, a second hopper, a salt groove and the measured spring. One end of the spring force measuring device is fixed, the other end of the spring force measuring device is connected with the second hopper through the second fixed pulley, one end of the measured spring is fixed to one end of the graduated scale, the other end of the measured spring is connected with the first hopper through the first fixed pulley, the first hopper is located over the second hopper, and the salt groove is located under the second hopper. Through observing changes of edible salt content in the hoppers, the elongation of the spring is controlled, and in the teaching process, the device can be directly utilized for verifying a formula of the stiffness coefficient of the spring after springs are connected in series or in parallel; the experiment method enables students to master knowledge principles easily in the teaching process, facilitates mastering of scientific knowledge for the students and has application and popularization value.
Description
technical field [0001] The invention relates to a physical experiment method, in particular to a measuring method of a spring stiffness coefficient measuring instrument. Background technique [0002] Stiffness coefficient, that is, stubborn coefficient (elastic coefficient). It describes the size of the elastic force produced by unit deformation. If the k value is large, it means that the force required to deform the unit length is large, or the spring is "tough". Stiffness coefficient is also called stiffness coefficient or stubbornness coefficient. The stiffness coefficient is numerically equal to the elastic force when the spring is stretched (or shortened) per unit length. In the prior art, it is cumbersome to test the stiffness coefficient of the spring, the work is cumbersome, the efficiency is low, and the accuracy is not enough. Therefore, there is room for improvement. Contents of the invention [0003] The object of the present invention is to provide a measu...
Claims
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IPC IPC(8): G01M13/00G01M5/00G09B23/10
Inventor 王宝珍宋亚峰刘凯王小品
Owner SHANGLUO UNIV