Weight removing machine based on dynamic balance mechanism of rotor shaft of turbocharger

Abstract

The invention discloses a weight removing machine based on a dynamic balance mechanism of a rotor shaft of a turbocharger. The weight removing machine comprises a machine base, and a clamping mechanism, a positioning mechanism, a turbine rotor shaft impeller grinding mechanism and a turbine rotor shaft port grinding mechanism are fixed to the upper surface of the machine base. The turbine rotor shaft impeller grinding mechanism comprises a first moving unit fixed to the upper surface of the machine base, and the first moving unit is used for driving a first grinding unit to move back and forth to grind a turbine rotor shaft impeller. The turbine rotor shaft port grinding mechanism comprises a second moving unit fixed to the upper surface of the machine base, and the second moving unit is used for driving a second grinding unit to move back and forth to grind a turbine rotor shaft port. According to the weight removing machine based on the dynamic balance mechanism of the rotor shaft of the turbocharger, the unbalance amount on a turbine rotor shaft port and an impeller of the turbocharger is reduced in a weight removing mode, then the vibration value during high-speed rotation is reduced, and the stability of the turbine rotor shaft is improved.

Description

technical field [0001] The invention relates to the technical field of dynamic balancing equipment, in particular to a weight removing machine based on the dynamic balancing mechanism of a turbocharger rotor shaft. Background technique [0002] The turbine rotor shaft is a key part of the turbocharger, and its working speed is generally as high as tens of thousands of revolutions per minute, or even more than two hundred thousand revolutions per minute. Due to the uneven material of the turbine, the defects of the blank, the processing and assembly errors or uneven wear, etc., it is inevitable to cause uneven mass distribution, resulting in unbalanced quantities, resulting in the offset of the center of mass and the inconsistency between the inertial spindle and the rotating spindle, resulting in produce centrifugal force. Since the magnitude of the centrifugal force is proportional to the square of the angular velocity, that is to say, the higher the rotational speed of th...

AI Technical Summary

Problems solved by technology

Therefore, for the turbine rotor working at high speed, even a small unbalance may cause large vibration and noise, accelerate the wear of bearings and sealing parts, reduce the efficiency of the supercharger, affect the working performance and precision of the equipment, shorten the The service life will affect the quality of the product. In severe cases, it will cause the turbine to collide with the casing, resulting in fracture and damage to the rotating parts of the machine. In order to ensure the reliability of the turbocharger, the turbine rotor must be dynamically balanced

[0003] The supercharger rotor is the core component of the supercharger. During high-speed rotation, the imbalance of the rotor will cause large vibration and noise, which will directly cause the wear of the floating bearing, thrust bearing and even the sealing parts, and reduce the performance of the supercharger. The service life also lays hidden dangers for safe driving. High-speed dynamic balance is a detection method and processing method that reduces the vibration value of the workpiece during high-speed rotation and reduces vibration wear by measuring the unbalance and correcting it.

Now some small and medium-sized enterprises often measure the size and orientation of the unbalance of the turbine rotor on the dynamic balance measuring machine, and then manually use an ordinary drilling machine to perform de-duplication correction. The error is very large, and repeated detection and correction are required, and the balance process cycle is long. , low efficiency, poor precision

Images