JPH02293626A - Flow rate detecting device - Google Patents

Flow rate detecting device

Info

Publication number
JPH02293626A
JPH02293626A JP11531889A JP11531889A JPH02293626A JP H02293626 A JPH02293626 A JP H02293626A JP 11531889 A JP11531889 A JP 11531889A JP 11531889 A JP11531889 A JP 11531889A JP H02293626 A JPH02293626 A JP H02293626A
Authority
JP
Japan
Prior art keywords
ball
cylinder
flow rate
rotation
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11531889A
Other languages
Japanese (ja)
Inventor
Masayoshi Takamitsu
高光 雅義
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11531889A priority Critical patent/JPH02293626A/en
Publication of JPH02293626A publication Critical patent/JPH02293626A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a high-output flowmeter which is irrelevant to the material and thickness of a flow passage by forming a rotary part and an orifice in a thin, pressure-resisting cylinder provided in the flow passage, and providing a rotation detection part in contact with the cylinder. CONSTITUTION:The fluid in the flow passage 1 flows in the cylinder 2 and a ball 5 is applied with a turning force by a fixed blade 3 to rotate. The ball 5 is received by the ball receiver 4 and rotated on the same plane at the rotation speed proportionate to the flow rate. The rotation of the ball 5, on the other hand, is transduced into an electric signal by a rotation detector 10. In this constitution, the detector 10 is isolated from the ball 5 through only the cylinder 2 which is thin and has good pressure resistance. The orifice 11 is provided on the side in the inflow direction of the replaceable cylinder 2. Consequently, the distance between the ball 5 and detector 10 decreases and a flow rate signal is securely obtained, so the restrictions of the constitution and material are relaxed and the flow velocity can be controlled.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、流路内を流れる流体の流量を検出する流量検
出装置に関するものである. 〈従来の技術〉 従来のこの種の流盪検出装置は、第3図に示すようなも
のがあった. 第3図において、流路l2の内部に固定翼l3とボール
l5とボール受け14があり、回転検出部16がボール
l5の外周位置の流路外壁面に接して取付けられている
.固定翼l3とボール受けl4は接続され、固定yIt
13とボール受けl4に囲まれてボールl5が回転する
ようになっている.流路12内を流れる流体は、固定翼
13を通過することによって回転力を加えられ、ボール
l5を回転させる.回転させられたボール15は、ボー
ル受けl4で受け止められ、同一位置で回転し続ける.
前記回転検出部l6によって前記ボール15の回転が電
気信号に変換され、流体の流量を検出するようになって
いる.流体の流量が多くなると前記ボールl5の回転数
が比例的に増加するため、回転検出部l6によって回転
周波数を検出することで流量を測定できる構成となって
いる. く発明が解決しようとする課題〉 しかしながら、上記のような従来の構成では、次のよう
な課題を有していた. (1)  高圧流体が流れる場合、流路の肉厚を厚くす
る事が必ず必要となるが、肉厚を厚くすると、ボールの
回転が回転検出部によって正確に検出できなくなり、流
量が検出できなくなる可能性を生じる。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a flow rate detection device that detects the flow rate of fluid flowing in a flow path. <Prior art> A conventional flow detection device of this type is shown in Fig. 3. In FIG. 3, there are a fixed blade l3, a ball l5, and a ball receiver 14 inside the flow path l2, and a rotation detection unit 16 is attached in contact with the outer wall surface of the flow path at the outer circumferential position of the ball l5. Fixed wing l3 and ball receiver l4 are connected and fixed yIt
13 and ball holder l4, the ball l5 rotates. The fluid flowing in the flow path 12 is applied with rotational force by passing through the fixed blades 13, causing the ball l5 to rotate. The rotated ball 15 is received by the ball receiver 14 and continues to rotate at the same position.
The rotation detecting section l6 converts the rotation of the ball 15 into an electrical signal to detect the flow rate of the fluid. As the flow rate of the fluid increases, the number of revolutions of the ball l5 increases proportionally, so the flow rate can be measured by detecting the rotational frequency using the rotation detector l6. Problems to be Solved by the Invention> However, the conventional configuration described above had the following problems. (1) When high-pressure fluid flows, it is absolutely necessary to increase the wall thickness of the flow path, but if the wall thickness is increased, the rotation of the ball cannot be accurately detected by the rotation detector, and the flow rate cannot be detected. create possibility.

(2)流路の肉厚を薄くしなければならないので、他の
框体等と一体化した物として構成とする事が困難である
. (3)構成物の一部として流量検出装置を取り付ける場
合、固定翼やボール受けを挿入する部分の加工が困難で
あり、又流路の肉厚の精度が出難いため検出精度が低下
する. 本発明はかかる従来の課題を解消するもので、流路全体
の肉厚に関係なく高い出力を得ることができるようにす
ることによって汎用性の高い流量検出装置を提供するこ
とを目的とする。
(2) Since the wall thickness of the channel must be made thin, it is difficult to configure it as an integrated object with other frames, etc. (3) When installing a flow rate detection device as part of the structure, it is difficult to process the parts where the fixed blades and ball receivers are inserted, and it is difficult to accurately measure the wall thickness of the flow path, resulting in a decrease in detection accuracy. The present invention has been made to solve such conventional problems, and an object of the present invention is to provide a highly versatile flow rate detection device by making it possible to obtain a high output regardless of the thickness of the entire flow path.

〈諜題を解決するための手段〉 上記課題を解消するために本発明の流量検出装置は、流
路と、流体の流れで回転する回転部と前記回転部の位置
を規定するシリンダと、一部流路を切欠いた切欠き部と
、回転部の回転を検出する検出部とからなり、前記回転
部を前記シリンダ内に内蔵したユニットを前記切欠き部
内側に挿入し、前記切欠き部外側で前記検出部を前記シ
リンダに接して設けたものである。
<Means for Solving the Problem> In order to solve the above problem, the flow rate detection device of the present invention includes a flow path, a rotating part that rotates with the flow of fluid, and a cylinder that defines the position of the rotating part. A unit consisting of a cutout section that cuts out a flow path and a detection section that detects the rotation of a rotating section, and in which the rotating section is built into the cylinder is inserted into the inner side of the notch section, and the The detection section is provided in contact with the cylinder.

く作用〉 上記構成とすることによって、流路全体の材質や肉厚に
関係なく高い出力を得ることができると共に、汎用性を
更に向上することができる。
Effects> With the above configuration, high output can be obtained regardless of the material and wall thickness of the entire flow path, and the versatility can be further improved.

く実施例〉 以下、本発明における流量検出装置の一実施例を添付図
面に基づいて説明する。
Embodiment> Hereinafter, an embodiment of the flow rate detection device according to the present invention will be described based on the accompanying drawings.

第1図は本実施例の構成図を示す.第2図は断面図であ
る.第1図.第2図において、流入流路lの内部にシリ
ンダ2があり、シリンダ2の内部に流体の流入方向から
順に固定翼3、ボールウヶ4があり、固定翼3とボール
ウヶ4の中にボール5がある.シリンダ2の両端部には
、0リング6.7があり0リング6は流入流路1との間
、又0リング7は流出流路8との間で固定されている.
流入流路lの外周壁面の一部には開口部9があり、開口
部9は0リング6と0リング7との間に位置しており、
流体は流路外部に対して前記0リング6,7によってシ
ールされている.回転検出器lOは、開口部9を介して
シリンダ2に直接接する様に取り付けられている. 流入流路lを流れてきた流体は、シリンダ2内に流入し
、固定翼3で回転力を加えられボール5を回転させる.
回転させられたボール5はボールウケ4によって受けら
れ同一平面上で回転することになる.一方、回転するボ
ール5は回転検出器10によって回転を電気的信号に変
換され、その回転数によって流量の多少を検出する。回
転検出器lOはボール5の回転を磁界の変化として検出
し電気的信号に変換するものであり、ボール5と回転検
出器10との距離が出力の大小に大きく影響するように
なっているが、肉厚が薄く耐圧性を高くしたシリンダ2
のみしかボール5と回転検出器lOの間に挟まない構成
となっている.又、交換可能で加工が容易なシリンダ2
の流入方向側にはオリフィスl1を設けており、流体の
流速をコントロールする肴成となっている. 以上の構成により、流路を構成している材質や肉厚に関
係なく独立した構成とする事ができるため、よりボール
5と回転検出器loとの距離を小さくする事が可能とな
り、確実に流量検出信号を得ることができる.従って構
成上及び材質上の規制が緩和され汎用性が向上する。又
、簡単な加工で2itlの検出域コントロールが可能と
なるため、加工性が向上するだけでなく利用範囲も広が
る。
Figure 1 shows the configuration diagram of this embodiment. Figure 2 is a cross-sectional view. Figure 1. In Fig. 2, there is a cylinder 2 inside the inflow channel 1, a fixed blade 3 and a ball 4 are placed inside the cylinder 2 in order from the direction of fluid inflow, and a ball 5 is located in the fixed blade 3 and the ball 4. .. There are O-rings 6.7 at both ends of the cylinder 2, and the O-ring 6 is fixed between the inflow passage 1 and the O-ring 7 is fixed between the outflow passage 8.
There is an opening 9 in a part of the outer peripheral wall surface of the inflow channel l, and the opening 9 is located between the O-ring 6 and the O-ring 7,
The fluid is sealed from the outside of the flow path by the O-rings 6 and 7. The rotation detector IO is installed so as to be in direct contact with the cylinder 2 through the opening 9. The fluid that has flowed through the inflow channel 1 flows into the cylinder 2 and is applied with rotational force by the fixed blades 3, causing the ball 5 to rotate.
The rotated ball 5 is received by the ball uke 4 and rotates on the same plane. On the other hand, the rotation of the rotating ball 5 is converted into an electrical signal by a rotation detector 10, and the amount of flow is detected based on the number of rotations. The rotation detector 10 detects the rotation of the ball 5 as a change in the magnetic field and converts it into an electrical signal, and the distance between the ball 5 and the rotation detector 10 greatly influences the magnitude of the output. , Cylinder 2 with thin wall thickness and high pressure resistance
The configuration is such that only the ball 5 is sandwiched between the rotation detector lO. In addition, the cylinder 2 is replaceable and easy to process.
An orifice l1 is provided on the inflow direction side of the fluid to control the flow rate of the fluid. With the above configuration, it is possible to create an independent configuration regardless of the material and wall thickness of the flow path, making it possible to further reduce the distance between the ball 5 and the rotation detector lo. A flow rate detection signal can be obtained. Therefore, restrictions on configuration and materials are relaxed and versatility is improved. In addition, it is possible to control the detection range of 2 itl with simple processing, which not only improves processability but also expands the range of use.

く発明の効果〉 以上のように本発明の流量検出装置によれば、次の効果
が得られる. (1)回転部と回転検出器との距離を極めて小さくし、
流量検出信号を確実に得ることができるため、信頬性が
向上する. (2)流路の材質や肉厚に関係な《流量検出装置を独立
した形で構成できるため汎用性の向上が図れる. (3)回転部前後の流路形状を容易に加工・構成できる
ため利用範囲が広くなる.
Effects of the Invention> As described above, according to the flow rate detection device of the present invention, the following effects can be obtained. (1) The distance between the rotating part and the rotation detector is made extremely small,
Since the flow rate detection signal can be reliably obtained, reliability is improved. (2) It is possible to improve versatility because the flow rate detection device can be configured independently, regardless of the material or wall thickness of the flow path. (3) The flow path shape before and after the rotating part can be easily processed and configured, increasing the scope of use.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例における2itN検出装置の
構成図、第2図は同流量検出装置の構成断面図、第3図
は従来の流量検出装置の構成図である.l・・・・・・
流入流路、2・・・・・・シリンダ、3・・・・・・固
定翼、4・・・・・・ボール受け、5・・・・・・ボー
ル、6.7・・・・・0リング、8・・・・・・流出流
路、9・・・・・・開口部、IO・・・・・・回転検出
部、11・・・・・・オリフィス。 代理人の氏名 弁理士 粟野重孝 はか1名/一−一涜
入逸路、 2一冫ソ7グ 3一田定奪 4 −−オマ゜一,レテ.プ 5一木゜−ル 乙.7−0ノング 8一 流日流路、
FIG. 1 is a configuration diagram of a 2itN detection device according to an embodiment of the present invention, FIG. 2 is a sectional view of the same flow rate detection device, and FIG. 3 is a configuration diagram of a conventional flow rate detection device. l...
Inflow channel, 2...Cylinder, 3...Fixed blade, 4...Ball receiver, 5...Ball, 6.7... 0 ring, 8...outflow channel, 9...opening, IO...rotation detection section, 11...orifice. Agent's name: Patent attorney Shigetaka Awano Haka 1/1-Ichisaku Nirijiro, 21 So 7 Gu 3 Ichida Sada 4 -- Oma゜1, Rete. P5 Ichiki゜-ru Otsu. 7-0 Nong 81 Ryuichi Channel,

Claims (1)

【特許請求の範囲】[Claims] 流路と、流体の流れで回転する回転部と、前記回転部の
位置を規定するシリンダと、一部流路を切欠いた切欠き
部と、回転部の回転を検出する回転検出部とからなり、
前記回転部を前記シリンダ内に内蔵したユニットを前記
切欠き部の内側に挿入し、前記切欠き部の外側に前記検
出部を前記シリンダに接して設けた構成とした流量検出
装置。
It consists of a flow path, a rotating part that rotates with the flow of fluid, a cylinder that defines the position of the rotating part, a notch that partially cuts out the flow path, and a rotation detection part that detects the rotation of the rotating part. ,
A flow rate detection device having a structure in which a unit in which the rotating part is built in the cylinder is inserted inside the notch, and the detection part is provided outside the notch in contact with the cylinder.
JP11531889A 1989-05-09 1989-05-09 Flow rate detecting device Pending JPH02293626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11531889A JPH02293626A (en) 1989-05-09 1989-05-09 Flow rate detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11531889A JPH02293626A (en) 1989-05-09 1989-05-09 Flow rate detecting device

Publications (1)

Publication Number Publication Date
JPH02293626A true JPH02293626A (en) 1990-12-04

Family

ID=14659634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11531889A Pending JPH02293626A (en) 1989-05-09 1989-05-09 Flow rate detecting device

Country Status (1)

Country Link
JP (1) JPH02293626A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013217A (en) * 1983-07-04 1985-01-23 Matsushita Electric Ind Co Ltd Flow-rate detecting device
JPS60228923A (en) * 1984-04-27 1985-11-14 Saginomiya Seisakusho Inc Flow sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013217A (en) * 1983-07-04 1985-01-23 Matsushita Electric Ind Co Ltd Flow-rate detecting device
JPS60228923A (en) * 1984-04-27 1985-11-14 Saginomiya Seisakusho Inc Flow sensor

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