Shafting dynamic balance experimental bench

A technology of test bench and shaft system, which is applied in static/dynamic balance test, vibration test, measuring device, etc., can solve the problems of low positioning accuracy, confusing balance faults, and failure to connect into shaft system balance test equipment, etc., and achieve structural Simple, easy to install and operate

Inactive Publication Date: 2008-08-20
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, Bently Company of the United States has produced a single-axis dynamic balance test bench, but there is no balance test equipment connected into a shaft system.
The bearing seat and base of the rotor vibration simulation test bench produced by Dongda Vibr

Method used

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  • Shafting dynamic balance experimental bench
  • Shafting dynamic balance experimental bench

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Embodiment Construction

[0014] Referring to Fig. 1, the shafting dynamic balance test bench of the present invention includes: a base 18, at least two rotors (6, 14) are arranged on the base 18, and the rotors (6, 14) are respectively supported by two oil-impregnated bearings, oil-impregnated The bearings are respectively installed in the bearing housings (3, 9, 11, 17), the rotor 6 and the rotor 14 are connected through a shaft coupling 10, and the rotor 6 is connected to the motor 1 through a shaft coupling 2.

[0015] Weighting discs (5, 7) are installed on the rotor 6, weighting discs (13, 15) are installed on the rotor 14, and 16 threaded holes are equidistantly distributed on each weighting disc, so as to simulate imbalance through mounting screws;

[0016] The rotor 6 is equipped with two sensor supports (4, 8), the sensor supports are located inside the bearing housings (3, 9), and the rotor 14 is also equipped with two sensor supports (12, 16), the sensor supports are located at Bearing seat...

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Abstract

The present invention discloses a shafting dynamic balance experiment table which comprises a base and an electric motor whereon, a rotor, a coupling, a bearing base, a sensor base and a weighting disc installed on the rotor, the invention is characterized in that the bearing base and sensor base and three locating surfaces on the base frames are provided with corresponding matching surfaces in order to guarantee the radial matching among the bearing base and the sensor base and base frame, the shafting dynamic balancing experimental table can analog the unbalanced constrained oscillation of the flexible rotor shafting, and effectively reproduce the unbalanced phenomenon generated by the large-scale rotating machinery, and the invention is used for the researching of the rotor dynamic balance and the method. The rotary spped of the experiment table, the shafting hardness, the style of the electric vortex sensor and the style of the coupling are all adjustable. The experiment table has the advantages of reasonable designing, convenient and accurate locating, small and beautiful external appearance, and the invention provides an effective and convenient experiment facility for vibration testing and balance researcher.

Description

technical field [0001] The invention relates to a test bench in the field of vibration monitoring and control of rotating machinery, in particular to a shaft dynamic balance test bench. This shaft dynamic balance test bench can simulate the unbalanced forced vibration of the flexible rotor shaft, effectively reproduce the unbalance phenomenon produced by large rotating machinery, and is used for the research of rotor dynamic balance theory and method. Background technique [0002] Unbalance is the most common failure of large rotating machinery, and its handling process is also the most complicated among all failures. After decades of research and development, the current balance methods for flexible rotor on-site dynamic balance can be classified into two categories: modal balance method and influence coefficient method. After the efforts of many scholars, both methods have been improved a lot. The hybrid balance method proposed by Parkinson and Darlo...

Claims

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Application Information

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IPC IPC(8): G01M1/00G01M7/02
Inventor 吴芳基廖与禾屈梁生
Owner XI AN JIAOTONG UNIV
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