Shaft part stress analysis training aid

Abstract

A shaft part stress analysis training aid comprises a support frame, support mechanisms, torque simulation mechanisms, a space blending mechanism, an axial force transmission mechanism, a connecting rod amplification mechanism and bending moment simulation mechanisms. The shaft part stress analysis training aid, with the combination of knowledge of machinery, can decompose complex stress on a shaft into a circumferential force, a radial force, an axial force and a torque, analyzes the effect generated by each force and the effect generated by the overlaying of the forces, displays a bending moment and torque diagram under various stress conditions qualitatively to enable a result to be more visual and intuitive; moreover, the shaft part stress analysis training aid adopts a force and motion shunting principle, and the force on the shaft not only acts on the shaft, but also can drive corresponding mechanisms to move, so that the functions of bearing reaction demonstration and bending moment and torque combination demonstration are achieved.

Description

technical field [0001] The invention relates to a force analysis teaching tool for shaft parts. The device decomposes the complex force of the shaft into radial force, circumferential force and axial force, analyzes the effect of each force and the effect of the superposition of forces, and It is displayed through intuitive lines to make the result intuitive; at the same time, the device separates the force from the movement, and the force on the shaft not only acts on the shaft, but also drives the corresponding mechanism to move. Background technique [0002] For a long time, knowledge points such as force analysis, strength check and structural design of shaft parts have been the focus of teaching. Calculation and synthesis of bending moment and torque of shaft parts, and solution of shaft reaction force are the difficulties in learning. Especially when teaching the bending torque diagram, it is difficult for students to understand the principle and influencing factors of...

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Problems solved by technology

[0004] (1) In terms of functional design, although there are measuring instruments for the bending moment, torque and support reaction force of shaft beams on the market, each instrument can only measure a single mechanical property, and there is still huge room for development in terms of multi-function ;

[0005] (2) Existing measuring instruments are heavy and bulky, and can only be used as experimental equipment in laboratories;

[0006] (3) These existing measuring instruments all use the electrical measurement method of strain gauges to measure mechanical properties such as bending moment, torque, and support reaction force of the shaft, and the operation is complicated;

[0007] (4) Existing equipment generally cannot directly reflect the magnitude and direction of bending moment, torque, and support reaction force by using electrical measurement methods. The final data can only be obtained through mathematical calculations, and only fixed points can be analyzed. The result is not intuitive enough

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