A kind of misalignment adjustment method for permanent magnet eddy current governor
A technology of permanent magnet eddy current and adjustment method, applied in the field of rotating machinery transmission, can solve problems such as huge consumption of manpower and material resources, achieve the effects of convenient operation, no increase in equipment requirements, and solution of misalignment
Active Publication Date: 2021-10-26
NANJING UNIV OF SCI & TECH
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Problems solved by technology
In this way, the adjustment process is divided into two steps, and for medium and large equipment, each adjustment of the position is not a small project, which consumes a lot of manpower and material resources
Method used
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[0064] In the following, the present invention will be further described in conjunction with the example of using the permanent magnet eddy current governor to regulate the speed of the motor and drive the water pump and the accompanying drawings, but the present invention is not limited.
[0065] A method for adjusting the amount of misalignment for a permanent magnet eddy current governor, comprising the following steps:
[0066] Determine the reference axis and place the dial indicator: in the system, the water pump shaft is generally selected as the reference axis, and then the dial indicator seat is fixed on the permanent magnet rotor 4 that is fixedly connected with the water pump, and the dial indicator head is placed on the motor. fixed conductors on the rotor 2, such as figure 1 shown.
[0067] Connect the conductor rotor 2 and the permanent magnet rotor 4 of the permanent magnet eddy current speed governor with bolts or pins, so that the conductor rotor 2 and the pe...
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The invention discloses a method for adjusting the misalignment amount of a permanent magnet eddy current governor, which includes determining a reference axis and placing a dial indicator, and the dial indicator includes a radial dial indicator and an axial dial indicator; The conductor rotor and the permanent magnet rotor keep rotating synchronously during cranking; the readings and structural size parameters of the radial dial indicator and the axial dial indicator are respectively obtained during synchronous cranking; according to the readings and structure of the dial gauge when synchronous cranking The size parameters apply the principle of similar triangles in the vertical plane and the horizontal plane respectively to determine the required moving distance of the motor legs; adjust the position of the motor according to the determined moving distance. At the same time, the present invention improves the centering method of double dial indicators in the axial and radial directions, does not increase equipment requirements, is simple and efficient, and can smoothly solve the problem of misalignment.
Description
technical field [0001] The invention belongs to the field of rotating machinery transmission, in particular to a method for adjusting the misalignment amount of a permanent magnet eddy current governor. Background technique [0002] Under ideal conditions, the permanent magnet eddy current governor requires complete alignment. In actual use, due to the influence of factors such as manufacturing errors, installation errors, and thermal deformation, it is often impossible to guarantee complete alignment. During the actual operation of the unit, the misalignment of the permanent magnet eddy current governor will often cause the temperature rise of the rotor bearing and the vibration intensity to increase. Therefore, it is often necessary to study the influence of misalignment on the permanent magnet eddy current governor, so as to detect equipment failure early and avoid accidents. [0003] When carrying out the misalignment test of the permanent magnet eddy current governor,...
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IPC IPC(8): G01B5/252
CPCG01B5/252
Inventor 孙中圣王成龙
Owner NANJING UNIV OF SCI & TECH