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Magnetic suspension bearing inductance type radial displacement sensor

A displacement sensor, radial displacement technology, applied in the direction of magnetic bearing, conversion sensor output, bearing, etc., can solve the problem of restricting the detection surface area and so on

Pending Publication Date: 2022-01-25
重庆高孚透平科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, in order to solve the above-mentioned problems in the prior art, this application proposes a magnetic suspension bearing inductive radial displacement sensor with a new structure to solve the problem that the coil and the iron core mutually restrict the detection surface area

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  • Magnetic suspension bearing inductance type radial displacement sensor
  • Magnetic suspension bearing inductance type radial displacement sensor
  • Magnetic suspension bearing inductance type radial displacement sensor

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Embodiment Construction

[0013] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the invention, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0014] Wherein, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right" ", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Radial", "Circumferen...

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Abstract

The invention relates to a magnetic suspension bearing inductance type radial displacement sensor, which comprises a stator and a detection ring. The stator comprises an iron core yoke ring and at least one sensor coil assembly; the stator iron core yoke part ring is of an annular structure, a plurality of grooves are formed in the inner circumference at intervals, and the grooves are provided with combining parts. The sensor coil assembly comprises stator iron core teeth and at least one coil. Each stator iron core tooth is of a T-shaped structure, the radial inner end size of each stator iron core tooth is larger than the tooth size, and the radial outer end of each stator iron core teeth is provided with a combination part with the size smaller than the tooth size. The combination part of the stator core teeth and the combination part of the stator core yoke ring are spliced and combined in a concave-convex matching shape on the axial cross section. The detection ring is a circular ring formed by stacking and bonding silicon steel sheets. The main advantages and positive effects are that the stator core teeth and the stator core yoke are arranged in a split manner, and the coils are sleeved into the stator core teeth from the radial exteriors of the stator core teeth, so that the problem that the detection surface areas of the stator core teeth and the coils are mutually restricted is effectively avoided.

Description

technical field [0001] The present application relates to the technical field of magnetic suspension bearings, in particular to an inductive radial displacement sensor for magnetic suspension bearings. Background technique [0002] Magnetic suspension bearings are used to support rotors in rotating machinery. They do not require lubrication and have extremely low friction, which can effectively improve system efficiency. Suitable for high-speed rotating machinery. As the core component of the magnetic suspension bearing system, the displacement sensor directly determines the performance of the magnetic suspension bearing system. The non-contact inductive displacement sensor in the magnetic suspension bearing system obtains the rotor offset by detecting the inductance value at different positions. But its signal size depends on the area of ​​the detection surface in the sensor. In the existing inductance sensor, since the coil needs to be installed from the inner diameter o...

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Application Information

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IPC IPC(8): G01D5/20F16C32/04
CPCG01D5/2013F16C32/0406
Inventor 杨忠良魏大忠田希晖郑领博
Owner 重庆高孚透平科技有限公司
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