Method for reducing vibration or bending deformation of spindle rotor in high-speed electric spindle

Abstract

The invention relates to a method for reducing vibration or bending deformation of a spindle rotor in a high-speed electric spindle. Supporting points at two ends of the spindle rotor (5) are respectively provided with an elastic supporting ring (2) and a bearing seat (3), which have the same structures; when impact load which is triggered by vibration generated by high-speed rotation of the spindle rotor is transmitted to the elastic supporting ring through a bearing (4) and the bearing seat, and an Y-shaped raised wing of the elastic supporting ring has elastic deformation which can absorb part of vibrating energy, so the impact load among the bearing, the bearing seat and a sleeve (1) is lightened; as the Y-shaped raised wing of the elastic supporting ring has elasticity, rigid restriction borne by the supporting points at the two ends of the spindle rotor is weakened; therefore, the vibration or the bending deformation of the spindle rotor is effectively released; the self-centering effect of high-speed rotation of the spindle rotor is enhanced; and the method effectively prevents the bending deformation of the spindle rotor, reduces the force borne by the bearing, and improves the service life of the high-speed electric spindle.

Description

technical field [0001] The invention belongs to the technical field of mechanical vibration, and in particular relates to a method for reducing vibration or bending deformation of a main shaft rotor in a high-speed electric main shaft. Background technique [0002] The structure of the high-speed electric spindle is similar to that of a motor, but its function is essentially different from that of a motor. The sleeve of the high-speed electric spindle is similar to the base of the motor, the spindle rotor of the high-speed electric spindle is similar to the rotor of the motor, and the spindle rotor is installed in the sleeve through the bearing. The overall structure of the high-speed electric spindle is relatively compact, its speed is usually higher than that of the motor, the spindle rotor rotates smoothly, and the spindle rotor generally has some specific functions and not only for transmission purposes. [0003] With the advancement of science and technology, the indus...

AI Technical Summary

Problems solved by technology

Since the main shaft rotor and the sleeve are only connected by bearings and there is no shock absorber, the two ends of the main shaft rotor are rigidly constrained by the bearings and the sleeve, so that the vibration and bending deformation generated when the electric spindle rotates at high speed can hardly be released, resulting in The bending deformation of the main shaft increases, the bearing load increases, and the vibration increases

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