How to solve the problem of rotor shaft beating of roots drum centrifugal fan?
The rotor shaft with large original unbalance may have unpredictable risks when running at high speed, so it is necessary to carry out dynamic balance correction for the rotor. Rotor dynamic balance is a more important process in the production and processing of motors. It is a difficult problem related to whether the noise and vibration index value characteristics of the motor meet the requirements. Because the shortcomings in the motor power distribution design will cause noise and vibration to exceed the standard, which is intertwined with the unbalanced problems in the mechanical equipment, resulting in more complicated motor noise and vibration problems. There are different types of rotor balancing machines in Jizhi, and their weight removal methods are also different.
Roots drum centrifugal fan will have rotor beating after long-term use, how can we get rid of the predicament? First of all, from the accurate measurement of rotor beating value, centrifugal impeller beating difference and processing shaft beating difference, how to solve the problem of rotor beating of Roots drum centrifugal fan is introduced in detail?
1. accurate measurement of runout value
The roots blower is installed with the bearing motor shaft as the support point. After calibrating the center holes at both ends of the shaft, place the rotor shaft on the edge of the numerical control lathe and place the rotor on the accurate measurement rack with contour brackets on both sides. In the future, the rotor shaft of Roots blower will be accurately measured by micrometer side, and the rotor will be rotated for one week. The difference between the larger reading value and the smaller reading value in the table is to accurately measure the runout value of the surface layer.
2. Centrifugal Impeller Beating Deviation to Solve Difficulties
When the port runout and radial runout of the centrifugal impeller of the Roots drum exceed the allowable tolerance, the impeller diameter should not be too large to prevent the centrifugal impeller and radial runout.
The middle clearance of the casing is very large, then the rotor shaft can be placed in front of the lathe to carry out milling.
3. axis jump to solve difficulties
If the roots blower motor shaft out of round, can through spraying, painting, electroplating process or spray welding to save. In addition, it is also possible to carry an appropriate car.
, grinding processing. There are many ways to correct, in which the common way is the ball screw correction. Top the ball screw on the bending depression of the shaft and loosen the ball screw.
Make it gradually rotate, pressure on the shaft, so that the amount of bending gradually reduced. In addition, observe with a micrometer until the bending shaft straightens.
As we all know, in industrial manufacturing, there are many high-speed running objects on some common equipment, such as the rotor of a turbo generator, a motor, and a spindle bearing. In practical application, this kind of rotation feeling leads to the appearance of unbalance due to difficulties in materials, production and processing, and the unbalance of the rotor often causes the wear and tear of the machine or common faults, so we should judge the specific reasons according to the unbalance of the rotor shaft. Thank you for reading and I hope my sharing will be helpful to you.
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2024-01-02
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