Mechanical speed fluctuation demonstration instrument

Abstract

The invention discloses a mechanical speed fluctuation demonstration instrument, comprising a drive mechanism, a balance damping mechanism, a speed fluctuation detection device and a laser display and writing mechanism, wherein the drive mechanism comprises a drive motor and a flywheel; the balance damping mechanism comprises a resistance-trimming bolt, a support frame subassembly, an elastic damper, a slide block, a guide rod, a crank circle, a crank and a baffle block; the speed fluctuation detection device comprises a traction bar, a guide shaft, a box body, a transport cover, a shaft, a rubber sheet, a lock bolt, a sealing bearing, an O-shaped ring, a T-shaped joint, a protecting shell and an elastic film; the laser display and writing mechanism comprises a rack, a driving shaft, a driven shaft, a secondary motor, a paper tape, a laser pen bracket, a laser pen and a color pen; and the driving shaft, the driven shaft, the secondary motor, the paper tape, the laser pen bracket, the laser pen and the color pen are fixed on the rack. According to the device, a teacher can effectively display the speed fluctuation and adjust the learning content; a 'black box' in the traditional training aid demonstration process is avoided; the condition that students understand the speed fluctuation and adjust the learning content is facilitated; and understanding faults are avoided.

Description

technical field [0001] The invention relates to a mechanical speed fluctuation demonstration instrument. Background technique [0002] In the motion analysis and mechanism design of mechanical mechanisms, the original moving parts are often assumed to move at a uniform speed, but in actual production, the original moving parts of mechanical equipment, such as motors, do not move at a uniform speed. Affected by the mass and moment of inertia of each component in the mechanism and the driving force and resistance acting on it, the movement of the original moving part is not a uniform motion but fluctuates. Therefore, in order to perform accurate motion analysis and force analysis on the mechanism Analysis requires an accurate description of the motion law of the original moving parts of the mechanism, which is very important for high-speed, high-precision and high-automation mechanical design. Therefore, "Adjustment of Speed ​​Fluctuation" is an important content in the mecha...

AI Technical Summary

Problems solved by technology

This structural form has the advantages of simple structure and the ability to digitally respond to experimental results, but this structural form is more complicated in system composition. It needs to be composed of mechanical structures, sensor detection systems, computer systems, etc., which leads to this equipment. It is bulky and can only be placed in the laboratory, making it difficult to move. Generally, it can only be placed fixedly in the laboratory. It is difficult to bring it into the classroom, and it is difficult to become a teaching aid for teaching and display.

[0005] At the same time, this series of teaching aids are not intuitive enough. Since the measurement of speed and fluctuation is realized by means of electronic circuits, there is a "black box" between the phenomenon of speed fluctuation and the final waveform of speed change, that is, how to Changes in rotational speed become waveform changes that are invisible and unknowable

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