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How mechanical installation accuracy affects melt pump drive torque
Edit: Zhengzhou Melt Pump Date: 2019-12-04 15:24:58

The driving part of the melt pump usually consists of variable frequency motors, gearboxes, transmission shafts, etc. During the installation process, the concentricity of the input shaft of the metering pump and the output shaft of the gearbox needs to be manually adjusted. Couplings are used to compensate. This method can allow large deviations in concentricity. Generally, the space angle between the axis of the metering pump and the axis of the gear box is within the range of 10 degrees to 15 degrees. Compensation can be performed without causing an increase in driving torque, but this compensation method also has a disadvantage: the larger the intersection angle between the two axis centers, the greater the rotational angular velocity of the drive shaft of the melt pump and the angular velocity of the gearbox output shaft The worse the synchronization is, that is, the output shaft of the gearbox rotates uniformly, and the rotation speed of the input shaft of the pump is increased with the above-mentioned intersection angle, and the rotation speed is more uneven. Usually, the intersection angle is controlled at 0.5 degrees Within 10 degrees. However, sometimes the cross angle becomes larger due to deformation of the frame, human error in installation, loose fixing parts, etc. This situation is not easy to be found.

Standard melt pump

The use of non-universal couplings can avoid the above situation. Plum blossom couplings are one of them. This method requires high installation accuracy, and the axial and radial deviations must be controlled within 0.2mm. There is no situation where the maximum pump speed of the melt meter is not synchronized with the driving part speed, but sometimes the driving torque is significantly increased due to deformation of the frame, human error in installation, loose fixed parts, and bearing failure, and even overload protection or shear Situation of safety pins. Large domestic melt pump manufacturers have advanced processing technology and perfect quality inspection procedures to ensure that each metering pump equipment is provided, with advantages such as high precision and long life. Zhengzhou melt pump manufacturer 24-hour consultation hotline: 15937189507



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