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Structural principle:
This mechanical transmission model includes 6 transmission forms such as belt transmission, helical gear transmission, chain transmission, cylindrical gear transmission, bevel gear transmission and friction transmission. In order to facilitate the experiment and improve the observation effect, the instrument is driven by a DC motor. First, the DC motor drives the helical rod through the belt to complete the belt transmission, and then the helical rod drives the helical gear to realize the helical gear transmission. After the above two decelerations, the worm shaft rod drives the next stage of the chain to rotate, and then the chain is driven step by step. It is cylindrical gear transmission, bevel gear transmission and friction wheel transmission.
Instruction:
This instrument needs to be equipped with a DC power supply (prepare a DC power supply by yourself). After placing the instrument horizontally on the table, insert one end of the included connecting cable with a plug into the power socket of the instrument, and connect the other end to the DC output terminal of the power supply. Adjust the voltage of the power supply, connect the power supply to DC6V, and the instrument enters the working state. Adjusting the voltage of the power supply can change the running speed of the instrument, and changing the polarity of the power supply of the instrument can change the rotation direction of the instrument.
Precautions:
1. Do not let the instrument work at a voltage above DC9V, otherwise it will damage the motor and accelerate the wear of various parts.
2. Before use, add an appropriate amount of lubricating oil and sewing machine oil to both ends of the worm shaft and the mesh part between the worm and the turbine to reduce the noise caused by friction.
3. The instrument should avoid collision and falling, and should be placed in a cool and dry place when not in use. If you find that the fixing screws are loose, tighten them in time.
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