An ultra-precise dynamic balancing device suitable for micro rotors

Abstract

The invention discloses an ultra-precise dynamic balancing device suitable for micro rotors, which comprises a device fixing part, a rotor supporting frame part, a rotor driving mechanism part and an unbalanced vibration monitoring part. The support frame fixing frame of the fixed part of the device can slide on the guide rail, and the base for installing the guide rail is fixed on the bottom plate; the rotor support frame part can realize the amplification of weak unbalanced vibration, and can be divided into two support structures according to different vibration amplification ratios Form; the motor in the rotor drive mechanism can drive the unbalanced rotor to rotate through belt transmission; the unbalanced vibration monitoring part obtains the amplitude and phase of the unbalanced vibration of the rotor through the displacement sensor and the phase detector. Compared with the traditional dynamic balancing device, the device involved in the present invention has simple structure, small volume, high measurement accuracy for weak unbalanced vibration, and is more suitable for ultra-precise dynamic balancing of micro-rotors.

Description

technical field [0001] The invention relates to a rotor dynamic balance device, in particular to an ultra-precise dynamic balance device suitable for micro rotors. Background technique [0002] Unbalance is the main factor that causes the vibration of rotating equipment. Small unbalance at high speed can also cause severe vibration. Only by controlling the residual unbalance of the rotor within a small range can the safe and reliable operation of rotating equipment be guaranteed. For this reason, domestic and foreign enterprises and research institutes have carried out many years of research on how to dynamically balance the rotor, and have achieved good dynamic balance results. However, with the development of industrial technology, industrial products are increasingly miniaturized and refined, and new requirements are put forward for the processing and testing performance of key components. [0003] At present, most of the traditional dynamic balancing machines used in th...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the traditional dynamic balancing machines used in the market are tested for rotating shaft parts of normal size, but it is often difficult to achieve micro-precision rotors with light weight (less than 0.5kg) and small volume (less than 3cm in diameter). Ideal Accuracy Requirements

Traditional mechanisms usually use spring damping to measure unbalance, which is complex in processing and poor in precision adjustment

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