Device and method for analyzing forced vibration coupling characteristics of stator winding system
A technology of forced vibration and stator winding, applied in vibration testing, measuring devices, testing of machine/structural components, etc., can solve problems affecting normal lubrication of rolling bearings, insulation resistance reduction, insulation breakdown, etc.
Active Publication Date: 2021-05-11
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF11 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Generator vibration will cause winding insulation wear and shorten bearing life, affecting the normal lubrication of rolling bearings
The exciting force promotes the expansion of the insulation gap, causing the outside dust and moisture to invade it, resulting in a decrease in insulation resistance and an increase in leakage current, and even causes accidents such as insulation breakdown.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035]Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.
[0036]Such asfigure 1 withFigure 8 withFigure 9 An apparatus for analyzing the stator winding system forcing the vibration coupling characteristics, including stator 11, rotor 4, winding 13, transmission mechanism, support mechanism, and measuring mechanism, transmission mechanism including, drag motor 6, coupling 5, rotating shaft 1, And rolling bearings 2; the output of the drag motor 6 is connected to the rotating shaft 1 by rigid coupling 5, the rotating shaft 1 passes through the rotor 4 and fixed to the rotor 4, the rotor 4...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a device for analyzing forced vibration coupling characteristics of a stator winding system. The device comprises a stator, a rotor, a winding, a transmission mechanism, a supporting mechanism and a measuring mechanism, and is characterized in that the transmission mechanism comprises a dragging motor, a coupler, a rotating shaft and rolling bearings, the output end of the dragging motor is connected with the rotating shaft through the coupler, the rotating shaft penetrates through the rotor and is fixed with the rotor, the rolling bearings are arranged on the rotating shaft at the two ends of the rotor, the supporting mechanism is used for fixing the dragging motor, the rolling bearings and the stator, and the measuring mechanism is used for measuring vibration of the winding. According to the device and method for analyzing the forced vibration coupling characteristic of the stator-winding system, separation of primary forced vibration and secondary forced vibration is achieved, vibration data under the three conditions are analyzed, and the coupling characteristic of the stator-winding system is obtained.
Description
Technical field[0001]The present invention belongs to the technical field of experimental equipment, and more particularly to a device and method relating to a parse stator winding system forcing vibration coupling characteristics.Background technique[0002]The root cause of generator vibration is that the internal components of its system lead to the imbalance of the force, and this imbalance is often periodic, which is called exciting force, and the periodicity generated under this excitation Displacement is forced vibration.[0003]Forced vibration can be divided into one forced vibration and secondary forced vibration. Simply, once a forced vibration refers to the vibration of the exciting force to be studied, the vibration of the object being studied; second forced vibration refers to the exciting force acting in an object that is elastically coupled to the study object. The vibration of the object being studied.[0004]Generator vibration causes winding insulation wear and shorteni...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01M7/04G01M7/02
CPCG01M7/04G01M7/025G01M7/022
Inventor 何玉灵孙凯王烁单玉楠张志杰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)