Mounting structure of axial sensor of electromagnetic bearing
A technology of axial sensor and sensor installation hole, which is applied in the field of installation structure of electromagnetic bearing axial sensor, can solve the problems of being unusable and occupying a large space, and achieves the effects of saving space, wide applicability and accurate detection position
Pending Publication Date: 2019-03-15
NANJING CIGU TECH CORP LTD
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Problems solved by technology
[0002] The axial sensor 4 of the existing electromagnetic bearing is installed on one end of the rotor 1 (such as figure 2 ), to detect the axial position of the rotor, the installation method of this structure occupies a large space, and when the impellers are installed at both ends of the rotor, the installation method of this structure cannot be used at this time
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[0010] The present invention will be further described below in conjunction with the accompanying drawings.
[0011] Such as figure 1 , an installation structure of an electromagnetic bearing axial sensor in the present invention, comprising a rotor 1, a thrust magnetic bearing 2, a thrust disc 3 and an axial sensor 4, one thrust disc 3 and two thrust magnetic bearings 2 are sleeved on the rotor 1 , and the thrust disc 3 is placed between two thrust magnetic bearings 2 , and a rotation gap is formed between the thrust magnetic bearings 2 and the rotor 1 .
[0012] Two sensor installation holes 21 are provided on the outer thrust magnetic bearing 2, and the positions of the two sensor installation holes 21 are located within the radius range of the thrust disc 3, and an axial sensor 4 is installed in one of the sensor installation holes 21 , and fill the potting compound in the sensor installation hole 21, and fix the axial sensor 4 in the sensor installation hole 21. The ax...
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The invention discloses a mounting structure of an axial sensor of an electromagnetic bearing. The mounting structure comprises a rotor, thrust magnetic bearings, a thrust disc and the axial sensor; the thrust disc and the two thrust magnetic bearings sleeve the rotor, the thrust disc is arranged between the two thrust magnetic bearings, one thrust magnetic bearing is provided with two sensor mounting holes, the two sensor mounting holes are located within the radius range of the thrust disc, one sensor mounting hole is internally provided with the axial sensor and filled with pouring sealant,and the axial sensor detects the displacement variation between the thrust magnetic bearings and the thrust disc. By means of the mounting structure, a displacement sensor mounting base is omitted, the space is saved, the displacement variation between the thrust magnetic bearings and the thrust disc is directly measured, the detection position is more accurate, and the mounting structure is suitable for mounting impellers at both ends of the rotor and has higher applicability.
Description
Technical field: [0001] The invention relates to an installation structure of an electromagnetic bearing axial sensor. Background technique: [0002] The axial sensor 4 of the existing electromagnetic bearing is installed on one end of the rotor 1 (such as figure 2 ) to detect the axial position of the rotor. The installation method of this structure occupies a large space, and when the impellers are installed at both ends of the rotor, the installation method of this structure cannot be used at this time. Invention content: [0003] The present invention provides an installation structure of an axial sensor of an electromagnetic bearing in order to solve the above-mentioned problems in the prior art. [0004] The technical solution adopted in the present invention includes: an installation structure of an electromagnetic bearing axial sensor, including a rotor, a thrust magnetic bearing, a thrust disk and an axial sensor, and a thrust disk and two thrust magnetic bearing...
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Login to View More IPC IPC(8): G01B21/02
CPCG01B21/02
Inventor 林英哲刘淑云吴立华董继勇
Owner NANJING CIGU TECH CORP LTD