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Method for solving double-faced dynamic balance of fan vibration

A fan and double-sided technology, applied in the field of double-sided dynamic balance to solve fan vibration, can solve problems such as difficult to meet equipment operation requirements, poor effect, cumbersome process, etc.

Inactive Publication Date: 2013-08-07
LAIWU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Using the above formula to calculate the counterweight, the process is cumbersome, correcting the counterweight angle and weight when applied to the dynamic balance of the fan is prone to poor results, it is difficult to meet the operation requirements of the equipment, and it needs to be started and stopped at least four times, frequent starting and stopping of the fan is harmful Driveline motors generate massive damage

Method used

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  • Method for solving double-faced dynamic balance of fan vibration
  • Method for solving double-faced dynamic balance of fan vibration
  • Method for solving double-faced dynamic balance of fan vibration

Examples

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Embodiment 1

[0039] In October 2012, a fan in a factory vibrated. The double-sided dynamic balancing method for solving fan vibration of the present invention is used for dynamic balancing. Schematic diagram of the fan rotor figure 1 As shown, at the level of the 1# and 2# bearing bushes at both ends of the fan (measuring point 1 and measuring point 2 in the figure), install the vibration sensor of the vibration meter respectively, and set a light-emitting sheet at the power input shaft of the fan to reverse the direction of the fan. If it is positive, otherwise it is negative. Set a phase sensor under the position of the luminescent sheet. When the fan is running, measure the horizontal vibration value OA corresponding to the bearing bushes at both ends. 1 with OB 1, and the corresponding phases of the two horizontal vibration values ​​are measured simultaneously. Weld a 500g test counterweight on the same position 40° on both sides of the fan rotor, reverse the steering angle measurem...

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PUM

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Abstract

The invention relates to the field of dynamic balance of a rotator, in particular to a method for solving the double-faced dynamic balance of fan vibration. The method comprises the following steps of 1) measuring to obtain horizontal vibration values OA1 and OB1 corresponding to bearing bushes on two ends as well as corresponding phases; 2) respectively welding a test-added counterweight in the same position on two sides of the fan rotator, and measuring to obtain horizontal vibration values OA2 and OB2 corresponding to bearing bushes on two ends as well as corresponding phases; 3) drawing a vibration coordinate graph against a rotating direction of the fan; and 4) clockwise or counterclockwise revolving a vector AB at an angle alpha to offset a vector OB, and obtaining a revised weight and a revised phase by utilizing a formula. By the adoption of the method, the double-faced dynamic balance on the fan rotator is carried out, and the technical problems of repeatedly disassembling and assembling equipment, hardly eliminating vibration and the like caused by inappropriate revised counterweight angle and weight in the complex computing process of current dynamic balance are solved.

Description

technical field [0001] The invention relates to the field of rotor dynamic balance, in particular, the invention relates to a double-sided dynamic balance method for solving fan vibration. Background technique [0002] The fan rotor is scoured by the dust air flow during use, resulting in different degrees of wear of the blades, causing the mass imbalance of the fan rotor to cause fan vibration and affect production. [0003] The existing double-sided dynamic balancing method needs to perform complex calculations to obtain the weight of the counterweight through the following formula: [0004] a 11 → = V A 1 → - V A 0 → ...

Claims

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Application Information

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IPC IPC(8): G01M1/38
Inventor 高志强尹彦周邹澎涛亓俊海葛勤宪罗宗尧亓爱民
Owner LAIWU IRON & STEEL GRP
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