Face gear planetary transmission type string fine-adjustment mechanism

Abstract

The invention relates to tone tuning devices of string musical instruments and particularly relates to a face gear planetary transmission type string fine-adjustment mechanism. The string fine-adjustment mechanism comprises a reel shaft, a positioning shaft and a positioning core shaft, wherein the reel shaft is externally rotatably sleeved with the positioning shaft and is externally externally rotatably sleeved outside the positioning core shaft; a first face gear, a second face gear and a third face gear are respectively arranged on first sections, located on the same side, of the positioning shaft, the reel shaft and the positioning core shaft, the tooth number of the first face gear is the same as that of the third face gear, and the tooth number of the second face gear is different from the tooth numbers of the first face gear and the third face gear; and a knob cover capable of rotating around the central axis of the positioning shaft is further arranged at one end, provided with the first face gear, on the positioning shaft, a rotating shaft vertical to the central axis of the positioning shaft is arranged in the knob cover, and a planetary gear simultaneously meshed with the first face gear, the second face gear and the third face gear is arranged at one end of the rotating shaft. According to the string fine-adjustment mechanism, the fine adjustment of the tightness degree of a string can be realized, the noise in the adjustment process of the string is low, and influences caused by the temperature and the humidity are small.

Description

technical field [0001] The invention relates to a tuning device for stringed musical instruments, in particular to a string fine-tuning mechanism through planetary transmission of face gears. Background technique [0002] Stringed instruments such as violins and cellos need to be tuned before use to ensure the best sound when playing, especially for violins, tuning is particularly important. [0003] At present, holes are usually opened in the head part, and solid wooden tuning rods are inserted into the two holes, the strings are fixed and coiled on the tuning rods, and the tuning rods are rotated through the knobs fixed on the tuning rods. The string stick is used for tuning and tuning. But use this method to fine-tune the strings, so that the tuning accuracy is relatively poor. And it is inconvenient to operate, and it is easy to cause wear and tear to the piano itself when tuning each time. Affected by temperature, humidity, etc., it will generate a lot of noise when ...

AI Technical Summary

Problems solved by technology

But using this method can not fine-tune the strings, making the tuning accuracy poor

And it is inconvenient to operate, and it is easy to cause wear and tear on the piano itself every time the string is tuned

Affected by temperature, humidity, etc., it will generate a lot of noise during use, the accuracy and quality of tuning will be affected, and the effect of long-term use is not good

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