Vertical pulling type three-dimensional adjustable experimental instrument for quantitatively verifying cone up-rolling condition

Abstract

The invention relates to a vertical pulling type three-dimensional adjustable experimental instrument for quantitatively verifying a cone up-rolling condition. The vertical pulling type three-dimensional adjustable experimental instrument comprises support legs, a base, a leveling spirit bubble, an initial end support leg, a base center line scale ruler, two guide rail initial position projection lines, a left guide rail tail end support leg, a left support leg vernier scale, a right support leg, a right support leg vernier scale, a guide rail tail end leg support leg, a support leg position indication main scale, a left guide rail and a right guide rail. The vertical pulling type three-dimensional adjustable experimental instrument has the beneficial effects of convenience in operation and high experiment accuracy.

Description

technical field [0001] The patent of the present invention relates to an experimental instrument, in particular to a vertical pull-type three-dimensional adjustment quantitative verification experimental instrument for cone roll-up conditions. Background technique [0002] The Cone Rolling Experimental Instrument is a demonstration experimental instrument used by universities and middle schools to verify the law of conservation of mechanical energy. According to the data, the cone upper rail experimental instruments in the physics laboratories of universities and middle schools all over the country adopt two fixed guide rails that are symmetrical about the center line on the base, and a double cone with a fixed size can only be used for demonstration experiments. This demo form only satisfies the cone roll-up condition A state of innumerable states. This device can only be shown to the students by demonstrating the process of double cones on the track, although it is also...

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Problems solved by technology

However, it is far from being able to achieve the expected goal in terms of cultivating students' ability. It is difficult to understand the nature and connotation of cone rolling from a higher and deeper level from the perspective of experimental principles and the mechanism of double cone rolling, let alone let students Do this experiment with a hands-on design

For this reason, the applicant applied for a utility model patent for the "three-dimensional adjustable cone roll-up design experimental instrument" with the patent number ZL201120221352.1 on January 18, 2012. The double guide rails rotate symmetrically at a certain angle and adopt a spherical mechanism. Rotate the form to change the inclination of the two orbital planes. Because the manufacturing process of this spherical structure is relatively troublesome and the cost is relatively high, the patent No. ZL201220433596.0 was applied for on March 20, 2013. In order to change the inclination angle of the guide rail and lower the vertical main axis, the utility model patent of the experimental instrument for verifying the rolling condition of the cone has adopted a modular structure, which brings difficulties to the accurate measurement of the height of the vertical axis lowering, and the accuracy is not high and the error is large

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