WO2011147158A1 - Elliptic-gear flow meter with four magnetic steels - Google Patents

Elliptic-gear flow meter with four magnetic steels Download PDF

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Publication number
WO2011147158A1
WO2011147158A1 PCT/CN2010/078308 CN2010078308W WO2011147158A1 WO 2011147158 A1 WO2011147158 A1 WO 2011147158A1 CN 2010078308 W CN2010078308 W CN 2010078308W WO 2011147158 A1 WO2011147158 A1 WO 2011147158A1
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Prior art keywords
elliptical gear
magnetic steel
magnetic
gear
elliptic
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PCT/CN2010/078308
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French (fr)
Chinese (zh)
Inventor
陈杰
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上海神舟汽车设计开发有限公司
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Publication of WO2011147158A1 publication Critical patent/WO2011147158A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/04—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls
    • G01F3/06—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing
    • G01F3/10—Geared or lobed impeller meters

Definitions

  • the invention relates to a four-magnet steel oval gear flowmeter, that is, two magnetic steels are respectively embedded in two ellipse of the flowmeter, so that the total number of magnetic steels is four, and the two magnetic steels of each elliptical gear are Corresponding to a Hall sensor, the number of pulse signals induced by the elliptical gear per revolution reaches four, which improves the measurement accuracy of the elliptical gear flowmeter, and belongs to the field of flow test technology. Background technique
  • the elliptical gear flowmeter is a pair of elliptical gears built in a cavity. When the elliptical gear is rotated, the flow of the liquid and the number of revolutions in the side space of the extrusion tooth is used to measure the flow rate. Currently, a volumetric flow rate is widely used. meter. The accuracy of an elliptical gear flowmeter depends on the length of the elliptical gear length and length, the ratio of the long and short axes of the elliptical gear, the thickness of the elliptical gear, and the number of induced pulse signals per revolution of the elliptical gear. The prior art is to embed two magnetic steels (ZL200610049716.
  • the present invention is directed to the deficiencies and shortcomings of the prior art, and provides a four-magnet steel elliptical gear flowmeter, that is, two magnetic steels are embedded on two ellipticals of the flowmeter, so that the total number of magnetic steels is four, each The two magnetic steels of the elliptical gear correspond to one Hall sensor, so that the number of pulse signals induced by the elliptical gear per revolution reaches four, which further improves the sensitivity of the elliptical gear flowmeter.
  • the present invention has been achieved by the following technical solutions.
  • the invention mainly comprises: an upper cover plate 1, a lower cover plate 2, an oval gear 3, an elliptical gear 4, a magnetic steel 5, a magnetic steel 6, a magnetic steel 7, a magnetic steel 8, a Hall sensor 9, a Hall sensor 10, an ellipse
  • the gear shaft 11, the elliptical gear shaft 12, the fluid inlet 13, the fluid outlet 14, and the like are characterized in that: the elliptical gear 3 is embedded with a magnetic steel 5 and a magnetic steel 6, and the elliptical gear 4 is embedded with a magnetic steel 7 and a magnetic steel. 8.
  • the Hall sensor 9 is placed in the hole of the upper cover 1 and is located above the center line of the magnetic steel 5 and the magnetic steel 6 of the elliptical gear 3; the Hall sensor 9 is placed in the hole of the upper cover 1, located in the elliptical gear 4 Magnetic Above the center line of the steel 7, the magnetic steel 8, the elliptical gear shaft 11 and the elliptical gear shaft 12 are respectively embedded in the lower cover 2.
  • the elliptical gear 3 and the elliptical gear 4 are identical in size and interchangeable.
  • the dimensions of magnetic steel 5, magnetic steel 6, magnetic steel 7, and magnetic steel 8 are identical and interchangeable.
  • the upper cover 1, the lower cover 2, the elliptical gear 3, and the elliptical gear 4 are made of a non-magnetic material, generally an aluminum alloy, a copper alloy or an engineering plastic.
  • Magnetic steel is strongly magnetic and is generally made of AlNiCo, SmCo or NdFeB alloy.
  • the working process of the present invention is: when the fluid passes through the flow meter inlet 13, the oval gear 3 is rotated clockwise and the elliptical gear 4 is rotated counterclockwise; the elliptical gear 3 and the elliptical gear 4 have two pockets of fluid per revolution Pushed to the flow meter outlet 14; the number of revolutions of the elliptical gear 3 is measured by the Hall sensor 9 and the magnetic steel 5, the magnetic steel 6, two pulses per revolution, that is, each pulse is equal to the volume of a cavity fluid; The number of revolutions of the elliptical gear 4 is measured by the Hall sensor 10 and the magnetic steel 7 and the magnetic steel 8. There are two pulses per revolution, that is, each pulse is equal to the volume of one cavity fluid; the cumulative Hall sensor 9 and Huo The number of pulses emitted by the sensor 10 determines the total amount of fluid passing through.
  • the invention has substantial features and significant advancements.
  • the invention provides a four-magnet steel oval gear flowmeter, that is, two magnetic steels are respectively embedded in two ellipse of the flowmeter, so that the total number of magnetic steels is four, and the two magnetic steels of each elliptical gear correspond to one.
  • the Hall sensor makes the number of pulse signals induced by the elliptical gear per revolution to four, which improves the measurement accuracy of the elliptical gear flowmeter.
  • FIG. 1 is a view showing the structure A-A of the present invention
  • Fig. 2 is a cross-sectional view showing the structure B-B of the present invention.
  • the present invention mainly comprises: an upper cover 1, a lower cover 2, an oval gear 3, an elliptical gear 4, a magnetic steel 5, a magnetic steel 6, a magnetic steel 7, a magnetic steel 8, and a Hall.
  • the sensor 9, the Hall sensor 10, the elliptical gear shaft 11, the elliptical gear shaft 12, the fluid inlet 13, the fluid outlet 14, and the like are characterized in that the connection mode is: the elliptical gear 3 is embedded with the magnetic steel 5 and the magnetic steel 6, the elliptical gear 4 embedded magnetic steel 7 and magnetic steel 8, Hall sensor 9 is placed in the upper cover 1 hole, located in the elliptical gear 3 of the magnetic steel 5, the center line of the magnetic steel 6; Hall sensor 9 placed in the upper cover In the hole of 1, the magnetic steel 7 of the elliptical gear 4 and the center line of the magnetic steel 8 are placed, and the elliptical gear shaft 11 and the elliptical gear shaft 12 are respectively fitted to the lower cover 2.
  • the elliptical gear shaft 11 and the elliptical gear shaft 12 are respectively embedded in the lower cover 2.
  • the size of the elliptical gear 3 and the elliptical gear 4 are completely Consistent, interchangeable.
  • the dimensions of magnetic steel 5, magnetic steel 6, magnetic steel 7, and magnetic steel 8 are identical and interchangeable.
  • the upper cover 1, the lower cover 2, the elliptical gear 3, and the elliptical gear 4 are made of a non-magnetic material, generally an aluminum alloy, a copper alloy or an engineering plastic. Magnetic steel is strongly magnetic and is generally made of AlNiCo, SmCo or NdFeB alloy.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

An elliptic-gear flow meter with four magnetic steels comprises two elliptic gears (3, 4), wherein two magnetic steels (5, 6; 7, 8) are built in each of the elliptic gears (3, 4) respectively, such that the total number of the magnetic steel is four, and the two magnetic steels of each of the elliptic gears correspond to one magneto-dependent sensor (9, 10), hence the number of the induced pulse signal for each revolution of the elliptic gear is four and the measuring accuracy of the elliptic-gear flow meter is improved.

Description

一种四磁钢椭圆齿轮流量计  Four magnetic steel oval gear flowmeter
技术领域  Technical field
本发明涉及的是一种四磁钢椭圆齿轮流量计，即是在流量计的两个椭圆上分 别嵌入二个磁钢，使磁钢总数为四个， 每个椭圆齿轮的二个磁钢都对应一个霍尔 传感器，使椭圆齿轮每旋转一周感应的脉冲信号数达到四个， 提高了椭圆齿轮流 量计的计量精度， 属流量测试技术领域。 背景技术  The invention relates to a four-magnet steel oval gear flowmeter, that is, two magnetic steels are respectively embedded in two ellipse of the flowmeter, so that the total number of magnetic steels is four, and the two magnetic steels of each elliptical gear are Corresponding to a Hall sensor, the number of pulse signals induced by the elliptical gear per revolution reaches four, which improves the measurement accuracy of the elliptical gear flowmeter, and belongs to the field of flow test technology. Background technique
椭圆齿轮流量计是在一个容腔内置一对椭圆齿轮，利用椭圆齿轮旋转时， 挤 出齿侧空间内的液体和旋转圈数的计量来实现流量测量， 目前应用较为广泛的一 种容积式流量计。椭圆齿轮流量计的精度取决于椭圆齿轮长短轴的大小、椭圆齿 轮长短轴的比值、 椭圆齿轮的厚度以及椭圆齿轮每旋转一周感应脉冲信号的多 少。现有技术是只在其中一个椭圆齿轮上嵌入两个磁钢（ZL200610049716. 6)， 用 磁敏传感器来感应脉冲信号， 椭圆齿轮每旋转一周感应的最大脉冲信号数为二 个； 或只在其一个高阶椭圆齿轮上嵌入三个磁钢 （ZL200810235779. X), 用磁敏 传感器来感应脉冲信号， 椭圆齿轮每旋转一周感应的最大脉冲信号数为三个。 发明内容  The elliptical gear flowmeter is a pair of elliptical gears built in a cavity. When the elliptical gear is rotated, the flow of the liquid and the number of revolutions in the side space of the extrusion tooth is used to measure the flow rate. Currently, a volumetric flow rate is widely used. meter. The accuracy of an elliptical gear flowmeter depends on the length of the elliptical gear length and length, the ratio of the long and short axes of the elliptical gear, the thickness of the elliptical gear, and the number of induced pulse signals per revolution of the elliptical gear. The prior art is to embed two magnetic steels (ZL200610049716. 6) on only one of the elliptical gears, and use a magnetic sensor to sense the pulse signal. The maximum number of pulse signals induced by the elliptical gear per revolution is two; or only in it Three magnetic steels (ZL200810235779.X) are embedded in a high-order elliptical gear, and a magnetic sensor is used to sense the pulse signal. The maximum number of pulse signals induced by the elliptical gear per revolution is three. Summary of the invention
本发明针对现有技术的不足和缺陷，提供一种四磁钢椭圆齿轮流量计， 即是 在流量计的两个椭圆上， 都嵌入二个磁钢， 使磁钢总数为四个， 每个椭圆齿轮的 二个磁钢都对应一个霍尔传感器，使椭圆齿轮每旋转一周感应的脉冲信号数达到 四个， 尽而进一步提高椭圆齿轮流量计的灵敏度。  The present invention is directed to the deficiencies and shortcomings of the prior art, and provides a four-magnet steel elliptical gear flowmeter, that is, two magnetic steels are embedded on two ellipticals of the flowmeter, so that the total number of magnetic steels is four, each The two magnetic steels of the elliptical gear correspond to one Hall sensor, so that the number of pulse signals induced by the elliptical gear per revolution reaches four, which further improves the sensitivity of the elliptical gear flowmeter.
本发明是通过以下技术方案来实现的。 本发明主要包括： 上盖板 1、 下盖板 2、 椭圆齿轮 3、 椭圆齿轮 4、 磁钢 5、 磁钢 6、 磁钢 7、 磁钢 8、 霍尔传感器 9、 霍尔传感器 10、 椭圆齿轮轴 11、 椭圆齿轮轴 12、 流体进口 13、 流体出口 14等， 其特征在于其连接方式为： 椭圆齿轮 3上嵌入磁钢 5和磁钢 6，椭圆齿轮 4上嵌 入磁钢 7和磁钢 8， 霍尔传感器 9置于上盖板 1孔内， 位于椭圆齿轮 3的磁钢 5、 磁钢 6的圆心线上方； 霍尔传感器 9置于上盖板 1的孔内， 位于椭圆齿轮 4的磁 钢 7、 磁钢 8的圆心线上方， 椭圆齿轮轴 11和椭圆齿轮轴 12分别嵌在下盖板 2 上。 椭圆齿轮 3和椭圆齿轮 4的尺寸完全一致， 可互换。 磁钢 5、 磁钢 6、 磁钢 7、 磁钢 8的尺寸完成一致， 可互换。 上盖板 1、 下盖板 2、 椭圆齿轮 3、 椭圆齿 轮 4由非导磁材料制造， 一般为铝合金、 铜合金或工程塑料。 磁钢为强磁， 一般 由铝镍钴合金、 钐钴或钕铁硼合金制造。 The present invention has been achieved by the following technical solutions. The invention mainly comprises: an upper cover plate 1, a lower cover plate 2, an oval gear 3, an elliptical gear 4, a magnetic steel 5, a magnetic steel 6, a magnetic steel 7, a magnetic steel 8, a Hall sensor 9, a Hall sensor 10, an ellipse The gear shaft 11, the elliptical gear shaft 12, the fluid inlet 13, the fluid outlet 14, and the like are characterized in that: the elliptical gear 3 is embedded with a magnetic steel 5 and a magnetic steel 6, and the elliptical gear 4 is embedded with a magnetic steel 7 and a magnetic steel. 8. The Hall sensor 9 is placed in the hole of the upper cover 1 and is located above the center line of the magnetic steel 5 and the magnetic steel 6 of the elliptical gear 3; the Hall sensor 9 is placed in the hole of the upper cover 1, located in the elliptical gear 4 Magnetic Above the center line of the steel 7, the magnetic steel 8, the elliptical gear shaft 11 and the elliptical gear shaft 12 are respectively embedded in the lower cover 2. The elliptical gear 3 and the elliptical gear 4 are identical in size and interchangeable. The dimensions of magnetic steel 5, magnetic steel 6, magnetic steel 7, and magnetic steel 8 are identical and interchangeable. The upper cover 1, the lower cover 2, the elliptical gear 3, and the elliptical gear 4 are made of a non-magnetic material, generally an aluminum alloy, a copper alloy or an engineering plastic. Magnetic steel is strongly magnetic and is generally made of AlNiCo, SmCo or NdFeB alloy.
本发明的工作过程是： 当流体通过流量计进口 13时， 推动椭圆齿轮 3顺时 针旋转及椭圆齿轮 4逆时针旋转；椭圆齿轮 3和椭圆齿轮 4每旋转一周会有二个 容腔的流体被推出至流量计出口 14; 椭圆齿轮 3的旋转周数由霍尔传感器 9和 磁钢 5、 磁钢 6感应测量， 每旋转一周有二个脉冲， 即每个脉冲等于一个容腔流 体的体积； 椭圆齿轮 4的旋转周数由霍尔传感器 10和磁钢 7、 磁钢 8感应测量， 每旋转一周有二个脉冲， 即每个脉冲等于一个容腔流体的体积； 累加霍尔传感器 9和霍尔传感器 10发出的脉冲数， 即可确定通过流体的总量。  The working process of the present invention is: when the fluid passes through the flow meter inlet 13, the oval gear 3 is rotated clockwise and the elliptical gear 4 is rotated counterclockwise; the elliptical gear 3 and the elliptical gear 4 have two pockets of fluid per revolution Pushed to the flow meter outlet 14; the number of revolutions of the elliptical gear 3 is measured by the Hall sensor 9 and the magnetic steel 5, the magnetic steel 6, two pulses per revolution, that is, each pulse is equal to the volume of a cavity fluid; The number of revolutions of the elliptical gear 4 is measured by the Hall sensor 10 and the magnetic steel 7 and the magnetic steel 8. There are two pulses per revolution, that is, each pulse is equal to the volume of one cavity fluid; the cumulative Hall sensor 9 and Huo The number of pulses emitted by the sensor 10 determines the total amount of fluid passing through.
本发明具有实质性特点和显著进步。 本发明提供一种四磁钢椭圆齿轮流量 计， 即是在流量计的两个椭圆上分别嵌入二个磁钢， 使磁钢总数为四个， 每个椭 圆齿轮的二个磁钢都对应一个霍尔传感器，使椭圆齿轮每旋转一周感应的脉冲信 号数达到四个， 提高了椭圆齿轮流量计的计量精度。 附图说明  The invention has substantial features and significant advancements. The invention provides a four-magnet steel oval gear flowmeter, that is, two magnetic steels are respectively embedded in two ellipse of the flowmeter, so that the total number of magnetic steels is four, and the two magnetic steels of each elliptical gear correspond to one. The Hall sensor makes the number of pulse signals induced by the elliptical gear per revolution to four, which improves the measurement accuracy of the elliptical gear flowmeter. DRAWINGS
图 1为本发明结构 A-A方向视图， 图 2为本发明结构 B-B剖面图。 具体实肺式  BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the structure A-A of the present invention, and Fig. 2 is a cross-sectional view showing the structure B-B of the present invention. Specific lung
如图 1、 图 2所示， 本发明主要包括： 上盖板 1、 下盖板 2、 椭圆齿轮 3、 椭 圆齿轮 4、 磁钢 5、 磁钢 6、 磁钢 7、 磁钢 8、 霍尔传感器 9、 霍尔传感器 10、 椭 圆齿轮轴 11、 椭圆齿轮轴 12、 流体进口 13、 流体出口 14等， 其特征在于其连 接方式为：椭圆齿轮 3上嵌入磁钢 5和磁钢 6，椭圆齿轮 4上嵌入磁钢 7和磁钢 8， 霍尔传感器 9置于上盖板 1孔内， 位于椭圆齿轮 3的磁钢 5、 磁钢 6的圆心线上 方； 霍尔传感器 9置于上盖板 1的孔内， 位于椭圆齿轮 4的磁钢 7、 磁钢 8的圆 心线上方， 椭圆齿轮轴 11和椭圆齿轮轴 12分别嵌在下盖板 2上。 椭圆齿轮轴 11和椭圆齿轮轴 12分别嵌在下盖板 2上。椭圆齿轮 3和椭圆齿轮 4的尺寸完全 一致， 可互换。 磁钢 5、 磁钢 6、 磁钢 7、 磁钢 8的尺寸完成一致， 可互换。 上 盖板 1、 下盖板 2、 椭圆齿轮 3、 椭圆齿轮 4由非导磁材料制造， 一般为铝合金、 铜合金或工程塑料。 磁钢为强磁， 一般由铝镍钴合金、 钐钴或钕铁硼合金制造。 As shown in FIG. 1 and FIG. 2, the present invention mainly comprises: an upper cover 1, a lower cover 2, an oval gear 3, an elliptical gear 4, a magnetic steel 5, a magnetic steel 6, a magnetic steel 7, a magnetic steel 8, and a Hall. The sensor 9, the Hall sensor 10, the elliptical gear shaft 11, the elliptical gear shaft 12, the fluid inlet 13, the fluid outlet 14, and the like are characterized in that the connection mode is: the elliptical gear 3 is embedded with the magnetic steel 5 and the magnetic steel 6, the elliptical gear 4 embedded magnetic steel 7 and magnetic steel 8, Hall sensor 9 is placed in the upper cover 1 hole, located in the elliptical gear 3 of the magnetic steel 5, the center line of the magnetic steel 6; Hall sensor 9 placed in the upper cover In the hole of 1, the magnetic steel 7 of the elliptical gear 4 and the center line of the magnetic steel 8 are placed, and the elliptical gear shaft 11 and the elliptical gear shaft 12 are respectively fitted to the lower cover 2. The elliptical gear shaft 11 and the elliptical gear shaft 12 are respectively embedded in the lower cover 2. The size of the elliptical gear 3 and the elliptical gear 4 are completely Consistent, interchangeable. The dimensions of magnetic steel 5, magnetic steel 6, magnetic steel 7, and magnetic steel 8 are identical and interchangeable. The upper cover 1, the lower cover 2, the elliptical gear 3, and the elliptical gear 4 are made of a non-magnetic material, generally an aluminum alloy, a copper alloy or an engineering plastic. Magnetic steel is strongly magnetic and is generally made of AlNiCo, SmCo or NdFeB alloy.

Claims

权利要求： Rights request:
1. 一种四磁钢椭圆齿轮流量计， 主要包括： 上盖板 （1 )、 下盖板 （2)、 椭 圆齿轮 （3)、 椭圆齿轮 （4)、 磁钢 （5)、 磁钢 （6)、 磁钢 （7)、 磁钢 （8)、 磁敏 传感器 （9)、 磁敏传感器 （10)、 椭圆齿轮轴 （11 )、 椭圆齿轮轴 （12)、 流体进 口 （13)、 流体出口 （14)等， 其特征在于其连接方式为： 椭圆齿轮 （3) 上嵌入 磁钢 （5 ) 和磁钢 （6) ，椭圆齿轮 （4) 上嵌入磁钢 （7) 和磁钢 （8)， 磁敏传感 器 （9) 置于上盖板 （1 ) 孔内， 位于椭圆齿轮 （3) 的磁钢 （5) 和磁钢 （6) 的 圆心线上方， 磁敏传感器 （10) 置于上盖板 （1 ) 的孔内， 位于椭圆齿轮 （4) 的 磁钢 （7)和磁钢 （8) 的圆心线上方， 椭圆齿轮轴 （11 )和椭圆齿轮轴 （12) 分 别嵌在下盖板 （2) 上。  1. A four-magnet elliptical gear flowmeter, mainly comprising: an upper cover (1), a lower cover (2), an oval gear (3), an elliptical gear (4), a magnetic steel (5), a magnetic steel ( 6), magnetic steel (7), magnetic steel (8), magnetic sensor (9), magnetic sensor (10), elliptical gear shaft (11), elliptical gear shaft (12), fluid inlet (13), fluid The outlet (14), etc., is characterized by the following: the elliptical gear (3) is embedded with magnetic steel (5) and magnetic steel (6), and the elliptical gear (4) is embedded with magnetic steel (7) and magnetic steel (8). ), the magnetic sensor (9) is placed in the hole of the upper cover (1), located above the center line of the magnetic steel (5) and the magnetic steel (6) of the elliptical gear (3), and the magnetic sensor (10) is placed Inside the hole of the upper cover (1), above the center line of the magnetic steel (7) and the magnetic steel (8) of the elliptical gear (4), the elliptical gear shaft (11) and the elliptical gear shaft (12) are respectively embedded in the lower cover On the board (2).
PCT/CN2010/078308 2010-05-24 2010-11-01 Elliptic-gear flow meter with four magnetic steels WO2011147158A1 (en)

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CN201010182698.5 2010-05-24
CN2010101826985A CN101975599B (en) 2010-05-24 2010-05-24 Four-steel magnet oval gear flowmeter

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CN102616714B (en) * 2012-03-26 2013-08-14 中山大学 Liquid filling equipment and control method thereof
CN104236658A (en) * 2014-09-10 2014-12-24 合肥精大仪表股份有限公司 Inner cam type scraping plate flow meter

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