What is the working principle of the reducer?

Partners often ask what is the working principle of the reducer?

In fact, the (reducer) reducer is simply to increase the torque and reduce the speed!The reducer is generally used for low-speed and high-torque transmission equipment. The motor, internal combustion engine or other high-speed running power is used to achieve the purpose of deceleration through the gear with a small number of teeth on the input shaft of the reducer and the large gear on the output shaft. Ordinary The reducer will also have several pairs of gears with the same principle to achieve the ideal deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio.Reducer products have a wide range of applications.

Food light industry, electric machinery, construction machinery, metallurgical machinery, cement machinery, environmental protection machinery, electronic appliances, road construction machinery, water conservancy machinery, chemical machinery, mining machinery, conveying machinery, building materials machinery, rubber machinery, petroleum machinery and other industries.


The following are commonly used reducer classifications:

1. Hardened helical gear reducer

2. Small micro gear reducer

3. Hardened cylindrical gear reducer

4. Planetary gear reducer (servo planetary reducer)

1) The ring gear is fixed, the sun gear is active, and the planet carrier is passive.It can be seen from the demonstration that this combination is a speed reduction transmission, usually the transmission ratio is generally 2.5 to 5, and the steering is the same.

Soft tooth surface reducer

5. Three-ring reducer

6. Crane three-in-one reducer

7. Worm gear reducer

8. Shaft-mounted hardened gear reducer

9. Continuously variable speed changer

Hardened helical gear reducers I believe everyone knows that there are imported SEW reducers, Japanese Sumitomo reducers, Siemens Flender reducers, British Bolton reducers, Maichuan reducers, Nord reducers and so on.The small and micro gear reducer is 6W to 4000W, which can be called a small and micro gear reducer. Spring reducer, Wanxin reducer, etc. are of good quality, and the service of Maichuan reducer is better than others.

The main feature of the worm gear reducer is the reverse self-locking function. The Maichuan reducer can achieve the export quality without oil leakage. The worm gear reducer can have a large reduction ratio. The input shaft and the output shaft are not on the same axis. , are not on the same plane.However, the volume is generally large, the transmission efficiency is not high, and the precision is not high.The harmonic transmission of the harmonic reducer uses the controllable elastic deformation of the flexible element to transmit motion and power. It is small in size and high in precision, but the disadvantage is that the life of the flexible wheel is limited, it is not resistant to impact, and its rigidity is compared with that of metal parts. Difference.The input speed should not be too high.The planetary reducer has the advantages of relatively compact structure, small return clearance, high precision, long service life, and large rated output torque.But the price is slightly expensive.

Troubleshooting

Due to the harsh operating environment of the reducer, there are often failures such as wear and leakage. The most important types are:

1. Wear of the bearing chamber of the reducer, including the wear of the housing bearing box, the inner hole bearing room of the box, and the gearbox bearing room;

2. The diameter of the gear shaft of the reducer is worn, and the main wear parts are the shaft head, keyway, etc.;

3. The bearing position of the drive shaft of the reducer is worn;

4. The joint surface of the reducer is leaking.