WO2020125104A1 - 一种用于磁悬浮轴承的组合传感器结构 - Google Patents

一种用于磁悬浮轴承的组合传感器结构 Download PDF

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Publication number
WO2020125104A1
WO2020125104A1 PCT/CN2019/106743 CN2019106743W WO2020125104A1 WO 2020125104 A1 WO2020125104 A1 WO 2020125104A1 CN 2019106743 W CN2019106743 W CN 2019106743W WO 2020125104 A1 WO2020125104 A1 WO 2020125104A1
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WO
WIPO (PCT)
Prior art keywords
rotor
boss portion
combined sensor
sensor structure
displacement sensors
Prior art date
Application number
PCT/CN2019/106743
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English (en)
French (fr)
Inventor
林英哲
施陈莲
吴立华
董继勇
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南京磁谷科技有限公司
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Application filed by 南京磁谷科技有限公司 filed Critical 南京磁谷科技有限公司
Publication of WO2020125104A1 publication Critical patent/WO2020125104A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness

Definitions

  • the invention relates to a combined sensor structure for magnetic suspension bearings.
  • the radial and axial displacement changes of the rotor 1 require two sensors (see FIG. 2).
  • Four radial displacement sensors are evenly distributed on the circumference of the rotor 1 to detect the radial direction of the rotor position.
  • An axial displacement sensor is installed at one end of the rotor 1 to detect the axial position of the rotor. Using two sensors will increase the axial installation space of the rotor 1 and increase the axial length of the rotor.
  • the present invention is to provide a combined sensor structure for a magnetic suspension bearing in order to solve the above-mentioned problems in the prior art.
  • a combined sensor structure for a magnetic levitation bearing including a rotor and a displacement sensor
  • the end of the rotor is provided with a boss portion
  • the inner end surface of the boss portion is a tapered structure
  • the displacement sensors are evenly distributed in the circumferential direction of the rotor, and the displacement sensors are located on the side of the tapered surface in the boss portion.
  • the angle between the tapered surface of the boss and the axis of the rotor is 30°-45°.
  • the radial displacement sensor is omitted, the structure is simple, and the space is saved;
  • the axial dimension of the rotor is shortened and the natural frequency of the rotor is increased.
  • Figure 1 is a structural diagram of the present invention.
  • FIG. 2 is an arrangement diagram of a radial displacement sensor and an axial displacement sensor around the rotor in the prior art.
  • a combined sensor structure for a magnetic suspension bearing of the present invention includes a rotor 1 and a displacement sensor 3.
  • the end of the rotor 1 is provided with a boss portion 11.
  • the inner end surface of the boss portion 11 is a tapered structure, with an even number
  • the displacement sensors 3 are uniformly distributed in the circumferential direction of the rotor 1, and the displacement sensors 3 are located on the side of the tapered surface in the boss portion 11.
  • the angle between the tapered surface in the boss portion 11 and the axis of the rotor 1 is 30°-45°.
  • Two or four displacement sensors 3 are provided.
  • the invention removes the original radial displacement sensor, the circumference is evenly distributed with 2 or 4 axial sensors, the detection surface of the rotor is made into a conical surface, the sensor can detect the radial displacement by 180° differential direction, and the size of the total value of the sensor detection value Can detect axial displacement.

Abstract

一种用于磁悬浮轴承的组合传感器结构，包括转子（1）和位移传感器（3），所述转子（1）的末端设有凸台部（11），凸台部（11）的内端面为锥面结构，偶数个位移传感器（3）均布在转子（1）的圆周方向上，且位移传感器（3）位于凸台部（11）中锥面的一侧。所述组合传感器结构省去了径向位移传感器，使结构简单，节省了空间，并且缩短了转子（1）轴向尺寸，提高了转子（1）的固有频率。

Description

一种用于磁悬浮轴承的组合传感器结构 技术领域：
本发明涉及一种用于磁悬浮轴承的组合传感器结构。
背景技术：
现有的磁悬浮轴承中转子1的径向与轴向的位移变化需要用到两种传感器(如图2)，在转子1的圆周均布4个径向位移传感器，用以检测转子的径向位置。在转子1一端安装一个轴向位移传感器，用以检测转子的轴向位置。采用两个传感器，会使得转子1的轴向安装空间变大，增加转子轴向长度。
发明内容：
本发明是为了解决上述现有技术存在的问题而提供一种用于磁悬浮轴承的组合传感器结构。
本发明所采用的技术方案有：一种用于磁悬浮轴承的组合传感器结构，包括转子和位移传感器，所述转子的末端设有凸台部，凸台部的内端面为锥面结构，偶数个位移传感器均布在转子的圆周方向上，且位移传感器位于凸台部中锥面的一侧。
进一步地，所述凸台部中的锥面与转子轴线之间的夹角为30°-45°。
进一步地，所述位移传感器设有2个或者4个。
本发明具有如下有益效果：
1、省去了径向位移传感器，使结构简单，节省了空间；
2、转子轴向尺寸缩短了，提高了转子的固有频率。
附图说明：
图1为本发明结构图。
图2为本现有技术中转子周围径向位移传感器与轴向位移传感器的布置图。
具体实施方式：
下面结合附图对本发明作进一步的说明。
如图1，本发明一种用于磁悬浮轴承的组合传感器结构，包括转子1和位移传感器3，转子1的末端设有凸台部11，凸台部11的内端面为锥面结构，偶数个位移传感器3均布在转子1的圆周方向上，且位移传感器3位于凸台部11中锥面的一侧。
凸台部11中的锥面与转子1轴线之间的夹角为30°-45°。
位移传感器3设有2个或者4个。
本发明去掉了原来的径向位移传感器，圆周均布2个或4个轴向传感器，转子的检测面做成锥面，传感器180°方向差动可检测径向位移，传感器检测值总和的大小可以检测轴向位移。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。

Claims (3)

  1. 一种用于磁悬浮轴承的组合传感器结构，其特征在于：包括转子(1)和位移传感器(3)，所述转子(1)的末端设有凸台部(11)，凸台部(11)的内端面为锥面结构，偶数个位移传感器(3)均布在转子(1)的圆周方向上，且位移传感器(3)位于凸台部(11)中锥面的一侧。
  2. 如权利要求1所述的用于磁悬浮轴承的组合传感器结构，其特征在于：所述凸台部(11)中的锥面与转子(1)轴线之间的夹角为30°-45°。
  3. 如权利要求1所述的用于磁悬浮轴承的组合传感器结构，其特征在于：所述位移传感器(3)设有2个或者4个。
PCT/CN2019/106743 2018-12-18 2019-09-19 一种用于磁悬浮轴承的组合传感器结构 WO2020125104A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN109441958A (zh) * 2018-12-18 2019-03-08 南京磁谷科技有限公司 一种用于磁悬浮轴承的组合传感器结构
CN113865473B (zh) * 2021-10-25 2022-10-11 珠海格力电器股份有限公司 一种磁悬浮电机系统及其转子位移检测装置和方法
CN115811174B (zh) * 2023-02-10 2023-04-18 山东天瑞重工有限公司 一种磁悬浮飞轮储能电池

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205300548U (zh) * 2016-01-12 2016-06-08 天津飞旋科技研发有限公司 一种转子轴向位移检测系统
JP2017032384A (ja) * 2015-07-31 2017-02-09 Ntn株式会社 回転検出装置および回転検出装置付き軸受
CN107314737A (zh) * 2017-07-12 2017-11-03 武汉理工大学 一种磁悬浮转子轴向位移径向测量方法
CN107591952A (zh) * 2017-08-28 2018-01-16 南京航空航天大学 一种可变位置磁悬浮直驱电机结构总成
CN107742995A (zh) * 2017-12-04 2018-02-27 南京磁谷科技有限公司 一种磁悬浮电机转子的轴向检测件的安装结构
CN107979239A (zh) * 2017-12-28 2018-05-01 南京磁谷科技有限公司 一种磁悬浮电机径向传感器安装结构
CN207719985U (zh) * 2017-12-28 2018-08-10 南京磁谷科技有限公司 一种磁悬浮电机径向轴向传感器一体式安装结构
CN109441958A (zh) * 2018-12-18 2019-03-08 南京磁谷科技有限公司 一种用于磁悬浮轴承的组合传感器结构
CN209430622U (zh) * 2018-12-18 2019-09-24 南京磁谷科技有限公司 一种用于磁悬浮轴承的组合传感器结构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108827207A (zh) * 2018-08-06 2018-11-16 南京磁谷科技有限公司 采用三余度控制的磁悬浮轴承径向位移传感器组件及其控制方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017032384A (ja) * 2015-07-31 2017-02-09 Ntn株式会社 回転検出装置および回転検出装置付き軸受
CN205300548U (zh) * 2016-01-12 2016-06-08 天津飞旋科技研发有限公司 一种转子轴向位移检测系统
CN107314737A (zh) * 2017-07-12 2017-11-03 武汉理工大学 一种磁悬浮转子轴向位移径向测量方法
CN107591952A (zh) * 2017-08-28 2018-01-16 南京航空航天大学 一种可变位置磁悬浮直驱电机结构总成
CN107742995A (zh) * 2017-12-04 2018-02-27 南京磁谷科技有限公司 一种磁悬浮电机转子的轴向检测件的安装结构
CN107979239A (zh) * 2017-12-28 2018-05-01 南京磁谷科技有限公司 一种磁悬浮电机径向传感器安装结构
CN207719985U (zh) * 2017-12-28 2018-08-10 南京磁谷科技有限公司 一种磁悬浮电机径向轴向传感器一体式安装结构
CN109441958A (zh) * 2018-12-18 2019-03-08 南京磁谷科技有限公司 一种用于磁悬浮轴承的组合传感器结构
CN209430622U (zh) * 2018-12-18 2019-09-24 南京磁谷科技有限公司 一种用于磁悬浮轴承的组合传感器结构

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