The reducer is generally used for the transmission equipment with low speed and large torque. The motor, internal combustion engine or other high-speed running power is used to reduce the speed by engaging the gear with a small number of teeth on the input shaft of the reducer with the large gear on the output shaft. The ordinary reducer also has several pairs of gears with the same principle to achieve the ideal reduction effect. The ratio of the number of teeth of the large and small gears is the transmission ratio. The reducer is a kind of power transmission mechanism, which uses the speed converter of gear to reduce the rotation number of motor to the required rotation number and obtain a larger torque.
Function of reducer
1) Reduce the speed and increase the output torque at the same time. The torque output ratio is multiplied by the motor output deceleration ratio, but it shall not exceed the rated torque of the reducer.
2) At the same time, the inertia of the load is reduced to the square of the deceleration ratio. You can see that the general motor has an inertia value.
Types of reducer
Generally, there are helical gear reducers (including parallel shaft helical gear reducers, worm gear reducers, bevel gear reducers, etc.), planetary gear reducers, cycloidal pinwheel reducers, worm gear and worm reducers, planetary friction type mechanical stepless transmission, etc.
Types of common reducers
1) The main feature of worm gear reducer is that it has reverse self-locking function and can have a large reduction ratio. The input shaft and output shaft are not on the same axis or plane. But the general volume is large, the transmission efficiency is not high, and the accuracy is not high.
2) The harmonic drive of harmonic reducer uses the elastic deformation controlled by the flexible elements to transfer the motion and power. It is small in size and high in accuracy, but its disadvantages are the limited service life of the flexible wheel, the non impact resistance, and the poor rigidity compared with the metal parts. The input speed cannot be too high.
3) The planetary reducer has the advantages of compact structure, small return clearance, high precision, long service life and large rated output torque. But the price is a little expensive
Classification, characteristics and parameters of helical gear reducer
1、 Introduction of helical gear reducer
Helical gear reducer is a new type of reducer. With the advanced design concept of optimization and modular combination system, it has the advantages of small volume, light weight, large transmission torque, stable starting, fine transmission ratio grading, and can be connected arbitrarily and installed at various positions according to the user's requirements. The gear is made of high-quality high-strength alloy steel, with carburized and hardened surface, strong bearing capacity and durable.
2、 Classification of helical gear reducers
1. Involute helical gear reducer
The involute helical gear reducer is characterized by small volume, light weight, high bearing capacity, high efficiency, long service life, convenient installation, wide range of motor power, fine transmission ratio classification, etc. Can be widely used in various industries need to slow down the equipment.
2. Helical worm gear reducer
The helical gear reducer adopts the form of direct motor connection, and the structure is one-stage helical gear plus one-stage worm gear drive. The output is shaft mounted, with six basic installation forms. It can be used for forward and reverse transfer. The helical gear adopts hard tooth surface, with stable operation, large bearing capacity and working environment temperature of - 10 ℃ ~ 40 ℃. Compared with similar products, the product has the characteristics of large speed range, compact structure and convenient installation. Can be widely used in metallurgy, mining, lifting, light industry, chemical industry, transportation, construction and other mechanical equipment of the deceleration mechanism.
3. Helical worm gear reducer
The helical gear reducer adopts the form of direct motor connection, and the structure is one-stage helical gear plus one-stage worm gear drive. The output is shaft mounted, with six basic installation forms. It can be used for forward and reverse transfer. The helical gear adopts hard tooth surface, with stable operation, large bearing capacity and working environment temperature of - 10 ℃ ~ 40 ℃. Compared with similar products, the product has the characteristics of large speed range, compact structure and convenient installation. Can be widely used in metallurgy, mining, lifting, light industry, chemical industry, transportation, construction and other mechanical equipment of the deceleration mechanism.
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