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The difference between planetary reducer and cycloidal pinwheel reducer

2020-12-12 Page view 1698

Planetary reducer and cycloidal pinwheel reducer are common reduction devices in the field of industrial transmission,They are different in several ways。Here are the main differences between them:

one、Structural difference

  • Planetary reducer:Driven by planet gear、The sun gear and the inner tooth ring are composed。The structure is characterized by an internal tooth ring tightly coupled to the tooth box housing,At the center of the ring tooth is a solar gear driven by external power,In between is a set of planetary gears,The group of planetary gears relies on output shafts、The inner ring and solar teeth support floating during the period。When the force side drives the solar teeth,Can drive the planetary gear rotation,And follow the track of the inner ring along the center of the revolution,The rotation of the planet drives the power output shaft connected to the tray。

  • Cycloidal pin gear reducer:It is composed of cycloidal needle wheel and inner tooth ring。The structure is characterized by a dislocation in the input shaft180°The double eccentric sleeve,The eccentric sleeve is fitted with two roller bearings called swivel arms,formHinstitution。The center hole of the two cycloidal wheels is the raceway of the eccentric sleeve on the rotating arm bearing,The cycloidal wheel is meshed with a set of ring arranged needle teeth on the needle gear,The internal meshing reducer is composed of a tooth difference。

two、Carrying capacity

  • Planetary reducer:Large carrying capacity,Suitable for heavy loads、The occasion of large torque。Its internal gears are made of high-strength materials,And after precision machining and heat treatment,It has high carrying capacity and durability。

  • Cycloidal pin gear reducer:The carrying capacity is relatively small,Suitable for light load、Small torque occasions。Its compact structure,However, it is limited by material and structural design,Limited carrying capacity。

three、Accuracy and efficiency

  • Planetary reducer:Average accuracy,But more efficient。Its deceleration ratio can be accurate to0.1turn-0.5turn/minutes,And because of the compact structure、Smooth transmission,High transmission efficiency can be achieved。

  • Cycloidal pin gear reducer:High precision,And the transmission efficiency is also high。Rolling friction is used in the transmission process,The transmission efficiency is much better than other transmission devices of the same type。meanwhile,Cycloidal pinwheel reducer has high transmission accuracy,It can meet the needs of high precision transmission。

four、Integrity and application

  • Planetary reducer:It is usually a multilevel structure,Need combination。Its modular design allows customers to combine variations according to their specific needs,Suitable for a variety of industrial fields。

  • Cycloidal pin gear reducer:It is usually a monomer structure,Easy to install and use。Its compact structure、Small size,So that in limited space can also achieve efficient transmission。meanwhile,Cycloidal pin gear reducer is widely used in various industrial machinery fields,Such as precision machinery、spin、food、medico。

To sum up,Planetary reducer and cycloidal pin gear reducer in the structure、Carrying capacity、There are obvious differences in accuracy and efficiency, integrity and application。When selecting a deceleration device,Its features should be considered according to specific requirements and application scenarios,To obtain the best transmission effect。