Teaching analyzing instrument of planar linkage mechanism

Abstract

The invention belongs to the technical field of teaching instruments, and relates to a teaching analyzing instrument of a planar linkage mechanism to solve the problems that an existing teaching tool display cabinet can only be statically displayed, a dynamic demonstration teaching tool is low in knowledge integration level and large in size, explaining in class cannot be easily carried out, and according to the existing teaching tool, the quick-return characteristics of the mechanism and the relation between the eccentric distance and the moving situation of a crank mechanism cannot be effectively studied. The teaching analyzing instrument comprises a first planar linkage mechanism converting and moving characteristic studying unit for carrying out four-bar mechanism conversion through rod length adjustment, a second planar linkage mechanism converting and moving characteristic studying unit and a third four-bar mechanism typical application demonstration unit, the eccentric distance is adjusted through a lifting frame, the relation of the changing of the eccentric distance and the mechanism moving situation is studied through the second planar linkage mechanism converting and moving characteristic studying unit , and the third four-bar mechanism typical application demonstration unit is used for studying the combined movement of a plurality of typical mechanisms. The three parts are installed on an aluminum profile bottom plate.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a teaching aid for structural analysis and motion exploration of a plane linkage mechanism in the mechanical discipline, and belongs to the technical fields of plane linkage, mechanical discipline teaching, popular science education exhibition and the like. Background technique [0002] Xun Kuang, a contemporary educator in our country, once proposed: "Education should be based on 'hearing and seeing'. He said that not hearing it is not as good as hearing it, and hearing it is not as good as seeing it. I don't know, even if I know it, I will be delusional." The primary teaching method of modern mechanical subject education is to combine theoretical teaching with experimental practice to cultivate students with all-round development, exploratory spirit and creativity. Vivid, intuitive and visual mechanical teaching aids can help students establish intuitive and perceptual knowledge, guide studen...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a teaching analyzer for planar link mechanism, the main purpose is to solve the problem that the existing teaching aids are not easy to be brought into the classroom for lectures, the teaching aids display cabinet can only be displayed statically, and the existing four-link changing teaching aids experiment can be used by students The operation is troublesome. At present, there is a lack of experimental teaching aids in the laboratory to explore knowledge points such as the quick return characteristics of the planar linkage mechanism, the relationship between the eccentricity and the motion characteristics of the crank slider mechanism, and the existing dynamic demonstration teaching aids on the market have low knowledge integration and large volume. , low cost performance, the planar connecting rod used for popular science display in the exhibition hall, single mechanism, lack of attraction, etc.

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