Vertical crank guide rod sliding block mechanism experiment table

Abstract

A vertical crank guide rod sliding block mechanism experiment table comprises a motor and a decelerator composed of a small belt pulley and a big belt pulley and connected with a motor in order, the decelerator is connected with a crank, the crank is connected with an expansion link through a crank connection device, the other end of the expansion link is connected with a sliding block through a flat head shaft, the sliding block is in cooperation contact with a sliding block support frame through a small ball, the sliding block 19 is provided with a displacement sensor and a speed sensor C configured to measure the speed of the guide rod, one end of the guide rod is connected with a hinge, the other end of the guide rod is provided with a penholder, and the middle portion of the guide rod is connected with the other end of the sliding block through the flat heat shaft. The vertical crank guide rod sliding block mechanism experiment table can change the crank eccentric distance, the length of the expansion link and the height of the sliding block support frame to realize demonstration of the crank sliding block mechanism, an eccentric crank sliding block mechanism and the crank guide rod sliding block mechanism, a real motion locus graph can be drawn on a chart board, each component of the experiment table can be repeatedly used in each mechanism, the dismounting and usage are convenient, the structure is simple, and a required motion model is easy to realize.

Description

technical field [0001] The invention relates to the field of experimental teaching aids, in particular to a vertical crank guide bar slider mechanism test bench. Background technique [0002] The mechanical principle course is a professional basic course in the mechanical category, which enables students to understand the basic knowledge of common mechanisms and common parts. This course contains several typical models, the crank-slider mechanism can convert rotational motion into reciprocating linear motion; the crank-guide slider mechanism can convert rotational motion into reciprocating linear motion and then convert it into a swing within a certain angle of the guide rod. The slider crank mechanism is a classic mechanical motion mechanism, which is widely used in mechanical design and industrial production. Therefore, in the teaching of basic mechanical theory, the teaching of crank-slider mechanism has become a key chapter. In order to assist teachers to better carry ...

AI Technical Summary

Problems solved by technology

On the one hand, the differences in experimental equipment have caused two extreme phenomena. Either the experimental equipment is highly intelligent, and the students' sense of participation is weakened. They have not grasped the basic mechanical structure, and only obtained the experimental data recovered by the sensor without independent analysis. Report

Either the structure and function of the experimental bench is too simple, the test data is too single, and cannot meet the teaching needs; It is also inconvenient to adjust the size of the mechanism. The experimental platform is wrapped in the shell, and students cannot observe the connection characteristics and transmission characteristics of the mechanical structure.

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