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Precautions and problems analysis of reducer installation

Time:2017-10-27 15:05:00 Hits: 69

One. Disorganized axis problems
    When the concentricity between the motor and the gear unit is guaranteed to be very good, the motor output bearings are only subjected to rotational forces and are smoothed during operation. However, when not in concentricity, the output shaft is subjected to a radial force from the input of the reducer. This long-term radial force forces the motor output shaft to be forced to bend, and the direction of bending changes as the output shaft rotates. Each rotation of the output shaft, the direction of lateral force changes 360 degrees. If the concentricity of the error is large, the radial force so that the temperature of the motor output shaft, the metal structure is constantly being destroyed, and finally the radial force will be beyond the motor output shaft can withstand the radial force, and ultimately lead to drive Motor output shaft broken. When the concentricity of the larger the error, the drive motor output shaft broken off the shorter the time. At the same time that the output shaft of the drive motor is broken, the input of the reducer will also withstand the radial force from the motor. If this radial force simultaneously exceeds the maximum radial load that the two can bear, the result will be Resulting in reducer input deformation or even rupture. Therefore, in the assembly to ensure concentricity is essential!
    Intuitively, if the motor shaft and reducer input concentric, then the motor and reducer will be very close cooperation between the contact surface between them closely linked, and the assembly if you do not mind, then the contact surface between them There will be a gap between.
    Similarly, the reducer output shaft also broken or bent phenomenon, the reason for the same reason and drive motor shaft. However, the reducer output is driven motor output and deceleration ratio of the product, compared to the motor in terms of greater efforts, so the reducer output shaft more easily be broken. Therefore, the user when using the reducer, the assembly of its output concentricity guarantee should also be very careful!
II reducer output is too small shaft problem
    In addition to the reducer output assembly concentricity is not good, and caused reducer shaft, the reducer output shaft if broken, nothing more than the following reasons.
    First of all, the wrong type of selection resulting reducer output is not enough. Some users in the selection, mistakenly believe that as long as the selected reducer rated output torque to meet the requirements of the job on it, it is not true, one is equipped with the rated output torque multiplied by the deceleration ratio, the value obtained in principle less than the product Sample similar to the reducer rated output torque, and second, at the same time also consider the overload capacity of the drive motor and the actual required maximum working torque. In theory, the maximum working torque required by the user must be less than 2 times the rated output torque of the reducer. In particular, some applications must strictly abide by this guideline, which not only protects the gear inside the gear, but more importantly, it prevents the output shaft of the reducer from being broken. This is mainly because if the equipment is installed with a problem, the reducer output shaft and its load is stuck, then the drive motor overload will still make it continue to increase output, which may make the reducer output bearing Of the force exceeds its rated output torque of 2 times and the reducer output shaft.
     Second, in the process of acceleration and deceleration, reducer output shaft moment of torque multiplied by more than its rated output torque of 2 times, and this acceleration and deceleration are too frequent, it will eventually make the reducer broken shaft .

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