Stepless speed regulation and step speed regulation combined fan gearbox

Abstract

The invention discloses a stepless speed regulation and step speed regulation combined fan gearbox which comprises a box body; a box cavity is formed in the box body; a first rotary shaft is rotatablyconnected between the left and right walls of the lower side of the box cavity; a left rotary shaft and a right rotary shaft on the left and right walls of the box cavity are rotatably connected withthe just upper side of the first rotary shaft; and a first motor fixedly arranged in the right wall of the box cavity is in power connection with the second rotary shaft on the right side. The stepless speed regulation and step speed regulation combined fan gearbox can realize switching among all gear revolving speeds, realizes fast speed regulation, can realize stepless fine regulation on the revolving speed after fast speed regulation to obtain personal preferred any transmission ratio and revolving speed, is very convenient to operate and simple in structure and realizes immediate speed regulation as the revolving speed of the output shaft is unchanged; and a user can precisely feel immediate wind speed and regulation is convenient.

Description

technical field [0001] The invention relates to the technical field related to gearboxes, in particular to a fan gearbox combining stepless speed regulation and stepped speed regulation. Background technique [0002] A fan refers to a device used to generate wind to keep cool in hot weather. It is a device driven by electricity to generate air flow. The fan inside is energized and then rotates into natural wind to achieve the effect of cooling; when using fans in daily life, there will always be some special ones. For example, the wind in the first gear is too high and the wind in the lower gear is too small. This kind of situation will always be embarrassing, and it will be very troublesome to always need to adjust the gear. The fan may have the problem of slow speed regulation, that is, there is a certain delay between speed regulation and reaching the actual speed, which will lead to errors in human judgment and repeated adjustments. The present invention clarifies a meth...

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Problems solved by technology

[0002] A fan refers to a device used to generate wind to keep cool in hot weather. It is a device driven by electricity to generate air flow. The fan inside is energized and then rotates into natural wind to achieve the effect of cooling; when using fans in daily life, there will always be some special ones. For example, the wind in the first gear is too high and the wind in the lower gear is too small. This kind of situation will always be embarrassing, and it will be very troublesome to always need to adjust the gear. The fan may have the problem of slow speed regulation, that is, there is a certain delay between speed regulation and reaching the actual speed, which will lead to errors in human judgment and repeated adjustments. The present invention clarifies a method that can solve the above problems device

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