Planar linkage mechanism comprehensive demonstration device

Abstract

The invention relates to a planar linkage mechanism comprehensive demonstration device. The device comprises a mounting frame, a driving mechanism, a first side link with an adjustable length, a connecting rod with an adjustable length, a second side link and a connecting assembly for connecting the second side link with the mounting frame, two ends of the connecting rod are respectively connectedwith one end of the first side link and one end of the second side link through revolute pairs, the connecting assembly is connected with the other end of the second side link through a revolute pair, and the connecting assembly is arranged on the mounting frame and is adjustable in position; and the driving mechanism is arranged on the mounting frame and used for driving the first side link to rotate. Based on the planar linkage mechanism comprehensive demonstration device, the working principles and basic structures of various planar linkage mechanisms can be demonstrated through the device, operation is convenient, and time is saved.

Description

technical field [0001] The invention belongs to the technical field of teaching aids, and in particular relates to a comprehensive demonstration device for a planar linkage mechanism. Background technique [0002] The planar linkage mechanism is a widely used mechanism. It plays an important role in the course of mechanical principles. Help students understand and master the characteristics of linkage mechanism. At present, teachers usually use simulation animations in combination with PPT and four-bar mechanism teaching model display cabinets to demonstrate. Due to the bulky and large size of the display cabinets, they are usually placed in the laboratory and separated from the classroom, which greatly reduces the teaching effect; and now Some teaching aids cannot effectively show the quick-return characteristics of the mechanism, so that students' understanding of the concept can only stay in the reasoning and analysis of the formula. The size remains the same, and each ...

AI Technical Summary

Problems solved by technology

At present, teachers usually use simulation animations in combination with PPT and four-bar mechanism teaching model display cabinets to demonstrate. Due to the bulky and large size of the display cabinets, they are usually placed in the laboratory and separated from the classroom, which greatly reduces the teaching effect; and now Some teaching aids cannot effectively show the quick-return characteristics of the mechanism, so that students' understanding of the concept can only stay in the reasoning and analysis of the formula. The size remains the same, and each form of four-bar mechanism requires a teaching model to display, which is large in number, bulky, and inconvenient to carry; the conventional four-bar mechanism test bench generally adopts the replacement of connecting rods to adapt to different lengths of rods. Experimental requirements, this kind of experimental bench needs to prepare a large number of connecting rods for replacement, and the rods need to be disassembled and assembled continuously during the experimental process, the experimental operation is inconvenient and time-consuming

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