Dynamic balancing system and centrifugal machine with dynamic balancing system

Abstract

The invention discloses a dynamic balancing system and a centrifugal machine with the dynamic balancing system. During balancing, two mass blocks are moved, unbalanced force can be balanced and is twotimes the manner of moving a single mass block, and the balancing range of balanced force is widened; and meanwhile, when the unbalanced force of the same magnitude is balanced, the movement distanceof balancing weights is halved, the motion time is greatly reduced, and the balancing efficiency is improved. The dynamic balancing system can achieve fast responding by adopting hydraulic drive andhydraulic locks, the dynamic balancing system is reliably locked at a preset position, and the balancing system is effective and reliable; two of four hydraulic cylinders are one set, and the two hydraulic cylinders in one set are controlled by proportional valves to act synchronously so as to guarantee that the balancing weights can smoothly move along guide rails; and piston rods of the hydraulic cylinders in different sets and on the same axis are fixedly connected into a whole, synchronous action of the two sets of hydraulic cylinders is guaranteed, the four hydraulic cylinders are used for cooperatively and synchronously driving the balancing weights, and high control precision can be achieved more easily.

Description

technical field [0001] The invention belongs to the technical field of centrifuge balance, and in particular relates to a dynamic trim system and a centrifuge equipped with the dynamic trim system. Background technique [0002] In order to provide a high-g centrifugal field, the centrifuge arm needs to rotate at high speed around the main shaft. In order to ensure the stable operation of the whole equipment, the rotating part of the centrifuge should be as balanced as possible, that is, the unbalanced force of the centrifuge should be as small as possible during operation. The unbalanced force causes dynamic load during the operation of the centrifuge, which causes equipment vibration, resulting in reduced system operation stability and precision, increased motion noise, accelerated wear of moving parts, rotor failure to operate normally, and shortened life span. Once the unbalanced force exceeds the system design threshold, it will cause the centrifuge to overturn or move, ...

AI Technical Summary

Problems solved by technology

[0007] In the above 1), the motor drives the dynamic balance system of the rod nut pair. The screw nut pair requires high installation accuracy, complex assembly, and high requirements for the working environment; It cannot work reliably under high centrifugal field, resulting in a small balance range of the dynamic balance system in the form of screw nut pair, and it can only work reliably under low centrifugal field

[0008] In the above 2), the repeatability of the water-driven dynamic balance trim is limited, and only a limited number of balances can be performed. After the water tank is full, the water t

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