What are the transmission principles of a gear reducer?

Reducer is generally used for low-speed high-torque transmission equipment, the motor, internal combustion engine or other high-speed operation of the power, through the reducer input shaft on the large gear and the output shaft on the large gear to achieve the ratio of the mesh speed, the size of the number of gears, is the transmission ratio.

A speed reducer is a relatively precise machine used to reduce speed and increase torque. There are many types of speed reducers, with different models, types, and uses. According to the type of gears, there are worm gear reducers and planetary gear reducers.

1. DC Worm gear reducer

There are mainly cylindrical worm reducers, circular spiral worm reducers, conical worm reducers, and worm gear reducers, etc., of which the cylindrical worm reducer is most commonly used.

Worm gear reducer applicable reduction ratio of 10 ~ 80. compact structure, transmission ratio, but the transmission efficiency is low, suitable for small power, clearance work occasions.

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2. Planetary Gear Reducer

Due to structural reasons, the minimum single-stage reduction is 3 levels, the maximum is generally not more than 10 levels, common reduction ratios are: 3/4/5/6/8/10. The number of deceleration stages is generally not more than 3 levels, but some large-scale reducers, than customized reducers, have 4 levels of reduction.

Planetary reducer compared to other reducers, with high rigidity, high precision, high transmission efficiency, high torque, large volume ratio, life-long maintenance-free, and other characteristics. Due to these features, planetary gearmotors are mostly installed on stepper motors and servo motors to reduce speed, increase torque and match inertia.

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