A Transformable Teaching Aid for Six-gear Complex Gear Train

Abstract

The invention discloses a six-gear complex gear train convertible teaching aid. The six-gear complex gear train convertible teaching aid is characterized in that the six-gear complex gear train convertible teaching aid comprises a base support, a motor driving device, a fixed-axis gear train mechanism, an inner gear mechanism, a differential gear mechanism and a digital display electronic counter; three straight gears and three bevel gears are combined with each other to form different types of gears; based on connection different methods, seven kinds of combination changes in a gear transmission process can be demonstrated, and five kinds of different transmission ratios can be directly obtained; straight gear transmission and bevel gear transmission as well as transmission principles of a fixed-axis gear train, a planetary gear train and a composite gear train can be demonstrated; and rotation speed can be measured through the magnetic induction digital display electronic counter. The six-gear complex gear train convertible teaching aid has the advantages of clear demonstration process, accurate calculation, convenient installation, stable structure, convenience in use and carrying, bright application prospect and high market value. The complex gear train of the teaching aid of the invention integrates all gear train types and corresponding digital display functions.

Description

technical field [0001] The invention belongs to the technical field of gear trains, and in particular relates to a convertible teaching aid for six-gear complex gear trains. Background technique [0002] Gear trains are a fundamental concept that engineering students need to master. But its content is relatively difficult, and the previous explanations in the classroom can only use a simple gear train or animation to understand the movement of each gear, and have not yet solved the problem of unintuitive performance of speed and transmission ratio. Especially in the classification of gear trains, what is a fixed axis and when does it become an epicyclic gear train? Epicyclic gear trains are divided into planetary gear trains and differential gear trains, as well as hybrid gears that combine fixed axle gear trains and planetary gear trains. Hybrid gear trains consisting of planetary gear trains and planetary gear trains, or planetary gear trains and differential gear trains ...

AI Technical Summary

Problems solved by technology

During classes and experiments, students tend to confuse concepts, leading to incomprehension of problems, resulting in unsatisfactory grades

In experiments, only demonstration teaching aids are generally used, and the gear trains made are of fixed types. Sometimes it is difficult for students to understand the conditions for the change of gear train types only by observation, and there is no possibility of changing gear trains by hand.

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