Photoelectric double-edge bearing static balance measurer and measuring method

A measurement method and double-knife-edge technology, applied in static/dynamic balance testing, measuring devices, instruments, etc., can solve problems such as low automation, short service life, and low measurement accuracy, and achieve high precision, sensitivity, and service life The effect of long length and high measurement accuracy

Inactive Publication Date: 2011-05-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention overcomes the problems of low measurement accuracy, small measurement range, low automation, low efficiency and short service life of the existing knife-edge static balance measurement method, and proposes a photoelectric double-knife-edge static balance measurement instrument and measurement method

Method used

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  • Photoelectric double-edge bearing static balance measurer and measuring method
  • Photoelectric double-edge bearing static balance measurer and measuring method
  • Photoelectric double-edge bearing static balance measurer and measuring method

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specific Embodiment approach 1

[0015] Specific implementation mode one: combine figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 Description of this embodiment, the photoelectric double-knife-edge static balance measuring instrument includes a first lifting mechanism 1-1, a second lifting mechanism 1-2, a third lifting mechanism 1-3, a first pillar 2-1, a second Pillar 2-2, third pillar 2-3, base 3, a pair of outer knife holders 4, a pair of inner knife holders 5, a pair of thick knife edges 7, a pair of thin knife edges 8, support 10, bracket body 12, Measuring mirror 13 and photoelectric collimator light pipe 14, the first pillar 2-1, the second pillar 2-2 and the third pillar 2-3 are respectively arranged on the first lifting mechanism 1-1, the second lifting mechanism 1 -2 and the third lifting mechanism 1-3, the first pillar 2-1 and the third pillar 2-3 are symmetrically supported on the lower end of the bracket body 12, and the second pillar 2-2 is supported on the center of the outer kn...

specific Embodiment approach 2

[0016] Specific implementation mode two: combination figure 1 , figure 2 with image 3 Describe this embodiment, the difference between this embodiment and specific embodiment 1 is that the photoelectric double-knife-edge support static balance measuring instrument also includes a calibration frame 9, a first balance weight 6-1 and a second balance weight 6-2, so The two balance weights are symmetrically arranged on the left and right ends of the bracket body 12 , and the calibration frame 9 is arranged on the upper surface of the bracket body 12 .

[0017] Before placing the rotor 11 under test, the center of gravity of the bracket 12 needs to be adjusted, and the function of the two balance weights adjusts the position of the center of gravity of the bracket 12 to the center of the bracket 12 .

[0018] The function of the calibration frame 9 is to establish the relationship between the static unbalance and the deflection angle of the bracket body 12 .

specific Embodiment approach 3

[0019] Specific implementation mode three: combination Figure 7 , Figure 8 , Figure 9 , Figure 10 with Figure 11 Describe this embodiment, the difference between this embodiment and specific embodiment 1 or 2 is that the photoelectric double knife-edge support static balance measuring instrument also includes three lifting assemblies 15, and each of the lifting assemblies 15 is supported by a support plate 15 -2 and three supports 15-1, the three lifting components 15 are respectively arranged on the upper end of the first pillar 2-1, the upper end of the second pillar 2-2 and the upper end of the third pillar 2-3, the three supports 15 -1 Two pairs are equidistantly arranged on the support plate 15-2, the three supports 15-1 are V-shaped support, plane support and conical support respectively, the part of the bracket body 12 in contact with the V-shaped support or the conical support Corresponding V-shaped protrusions or conical protrusions are provided so that the l...

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Abstract

The invention discloses a photoelectric double-edge bearing static balance measurer and a measuring method, relating to the technical field of integral static balance measurement, overcoming the defects of low measurement precision, inconvenient operation and difficult automation of the static balance measuring method in the prior art and comprising three lifting mechanisms, three supporting posts, a base, an outer cutter supporting seat, a pair of inner cutter supporting seats, a pair of thick edges, a pair of thin edges, a bearing, a bracket body, a measuring reflecting mirror and a photoelectric collimation optical tube. A measured rotor is put on the bearing of the bracket body; the quality imbalance amount of the measured rotor is measured roughly by the reflecting light of the measuring reflecting mirror received by the photoelectric collimation optical tube; and the quality imbalance amount of the measured rotor is measured precisely. The measuring method is a contactless photoelectric measuring technique, has the advantages of high measuring precision, larger measuring range, safe and reliable use, convenient operation, long service life and high intelligent level, is beneficial to enhancing automatic measuring level and is suitable for various fields of measuring and correcting the imbalance amount of the rotor.

Description

technical field [0001] The invention relates to the technical field of static balance measurement, in particular to the field of static balance measurement combining rotating machinery and photoelectric technology. Background technique [0002] Rotating machinery is widely used in electric power, petrochemical, metallurgy, aviation, aerospace, machinery manufacturing and other fields. Most of them are dynamic machinery and key equipment in factories. A large number of engineering practices have shown that excessive vibration of rotating mechanical equipment will lead to serious consequences, which will generate noise, reduce work efficiency, cause loose fit and component breakage, resulting in accidents. [0003] The unbalance of the rotor is the main excitation source of the rotating machinery, and it is also the trigger factor of many kinds of self-excited vibrations. Therefore, the study of the unbalance of the rotor has become an important means to eliminate the vibratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/12
Inventor 刘国栋浦昭邦刘炳国李佳庄志涛胡涛
Owner HARBIN INST OF TECH
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