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Balancer for vertical rotor and centrifuge using the same

A technology of balancer and centrifuge, applied in the direction of centrifuge, balance weight, etc., which can solve problems such as vibration, mixing of separated substances, and damper not being able to fully absorb vibration

Inactive Publication Date: 2010-01-20
KOREA INST OF MACHINERY & MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of conventional centrifuges is that when the speed of the rotor is reduced below the resonance speed, vibrations are generated and the separated substances are remixed
Although a conventional centrifuge includes a damper to solve the vibration problem, the damper cannot sufficiently absorb the vibration

Method used

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  • Balancer for vertical rotor and centrifuge using the same
  • Balancer for vertical rotor and centrifuge using the same
  • Balancer for vertical rotor and centrifuge using the same

Examples

Experimental program
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Embodiment Construction

[0038] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] Figure 1 to Figure 11 Respectively represent different structures and operations of the ball balancer according to the present invention.

[0040] Such as Figure 1 to Figure 10 As shown, the ball balancer according to the present invention includes a housing 1 formed with a balancing space 12 , and a plurality of balls 2 stored in the balancing space 12 .

[0041]Such as figure 1 with figure 2 As shown, the housing 1 is formed in a hollow cylindrical shape, and is formed with a shaft connection portion 111 having a shaft hole 111a to which the rotor is connected.

[0042] The balancing space 12 is formed in the housing 1 to have a circular periphery, and thus, the cross-sectional area gradually increases from the bottom to the top. More specifically, the balancing space 12 is defined by a bottom surface portion 121 extending wide...

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PUM

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Abstract

Disclosed herein are a balancer which is provided with a curved portion at a balancing space so that movement of balls is accelerated at the moment a rotational speed of a rotor exceeds a resonant speed, thereby stabilizing the rotation of the rotor without vibration regardless of when the rotational speed of the rotor is less or more than the resonant speed, and a centrifuge using the above balancer. The balancer includes a body which is formed with a balancing space thereinside. The balancing space has a circular circumference, and is defined by a bottom portion, a slanted portion extending upward from the bottom portion, a curved portion formed at an end of the slanted portion, and an upper large-diameter portion extending from the curved portion. The balancer further includes a plurality of balls which are contained in the balancing space.

Description

technical field [0001] The present invention relates to a balancer and a centrifuge using the same, and more particularly, to a balancer having a curved portion located in a balance space so that when the rotation speed of the rotor exceeds a resonance speed (resonant speed) , the motion of the ball is accelerated, thereby making the rotation of the rotor stable without vibration regardless of whether the rotation speed of the rotor is lower or higher than the resonance speed, and also relates to a centrifuge using the above-mentioned balancer for ensuring stable rotation of the rotor. Background technique [0002] There is generally an imbalance in the rotor of a rotating electrical machine, and this imbalance has an adverse effect on the rotational speed and generates vibrations and noise. In order to stabilize the unstable rotation of the rotor due to unbalance, a balancer is installed on the rotor. [0003] In particular, for example, high-speed rotors used in centrifu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/28B04B5/00
CPCB04B9/14
Inventor 金荣哲李安珹金炳玉
Owner KOREA INST OF MACHINERY & MATERIALS