How to choose the model and brand of planetary reducer?How to choose the planetary reducer?In the reducer family, planetary reducers are widely used in servo, stepping, DC and other transmission systems due to their small size, high transmission efficiency, wide reduction range, high precision and many other advantages.Its function is to reduce the speed, increase the torque and reduce the load/motor moment of inertia ratio under the premise of ensuring precise transmission.When choosing a planetary reducer, first determine the reduction ratio.If the company's standard product does not have the reduction ratio you need, please choose a close one or customize it from our company.

      XNUMX. The selection of the speed ratio of the planetary reducer:

      When selecting a planetary reducer, you must first clarify the reduction ratio. After determining the reduction ratio, please multiply the rated torque of your selected servo motor by the reduction ratio. The value obtained is in principle less than the rated output torque of the similar reducer provided in the product catalog. , And also consider the overload capacity of the drive motor and the maximum operating torque required in practice.The required maximum working torque should be less than 2 times the rated output torque.

      XNUMX. Selection of the size and specifications of the planetary reducer:

      After satisfying the above conditions, please choose the smallest reducer. The cost of the smaller reducer is relatively low.If you don't have enough space to connect the motor reducer in a straight line, you can also choose a corner reducer, which can turn the torque by 90 degrees.

      XNUMX. Selection of the accuracy (return clearance) of the planetary reducer:

      Next, consider the return clearance of the planetary reducer.The smaller the return gap, the higher the accuracy and the higher the cost.Users can choose a series of reducers that meet their accuracy requirements.

      Four, consider the service life of the planetary reducer:

      Also consider lateral/radial forces and average life.The reducer with large lateral/radial force is highly reliable in installation and use, and it is not easy to cause problems.The actual life can be calculated according to the software provided by the manufacturer.Usually its average life is much longer than the life of the equipped servo motor.

      XNUMX. Other matters needing attention when purchasing planetary reducer:

      After meeting the above indicators, you can select the reducer that matches your motor in terms of installation dimensions, shaft diameter and input flange according to the product catalog.Finally, you have to consider the weight of the motor.One type of reducer is only allowed to be matched with a motor smaller than a certain weight. The motor is too heavy and long-term operation will damage the output flange of the reducer.

      Planetary reducer is widely used in servo, stepping, DC and other transmission systems because of its small size, high transmission efficiency, wide deceleration range and high precision.Under the premise of ensuring precision transmission, it is mainly used to reduce the speed, increase the torque and reduce the load/motor moment of inertia ratio.

      Several key technical parameters to measure the performance of a line reducer are: reduction ratio, average life, rated output torque, return clearance, full load efficiency, noise, lateral/radial force and operating temperature.

      Reduction ratio: the ratio of output speed to input speed.

      Series: The sun gear and the planetary gears around it form an independent reduction gear train. For example, there is only one gear train in the reducer, which is called "first stage".In order to obtain a larger reduction ratio, a multi-stage transmission is required, and the reduction ratio is from 3 to 512.

      Average life: refers to the continuous working time of the reducer under the rated load and the highest input speed.

      Rated output torque: refers to the allowable output torque when working for a long time under rated load.The maximum output torque is twice this value.

      Return clearance: Fix the output end and rotate the input end clockwise and counterclockwise to make the output end produce a torque of ±2% of the rated torque. There is a slight angular displacement at the input end of the reducer, and this angular displacement is the return clearance.The unit is "arc minutes".

      Lubrication method: The planetary reducer does not need to be lubricated during the entire period of use.

      Full load efficiency: refers to the transmission efficiency of the reducer under the maximum load.It is a key indicator to measure the reducer. The reducer with full load and high efficiency has less heat and good overall performance.

      Noise: The unit is decibel (dB)A.This value is measured when the input speed is 3000 rpm, without load, and one meter away from the reducer.