JPS6171320A - Bearing supporting structure of turbine type flowmeter - Google Patents

Bearing supporting structure of turbine type flowmeter

Info

Publication number
JPS6171320A
JPS6171320A JP19349384A JP19349384A JPS6171320A JP S6171320 A JPS6171320 A JP S6171320A JP 19349384 A JP19349384 A JP 19349384A JP 19349384 A JP19349384 A JP 19349384A JP S6171320 A JPS6171320 A JP S6171320A
Authority
JP
Japan
Prior art keywords
axial flow
downstream
bearing
flow impeller
upstream
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
JP19349384A
Other languages
Japanese (ja)
Inventor
Nobuaki Yanagihara
伸章 柳原
Akira Nagai
永井　昌
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.)
Miura Co Ltd
Original Assignee
Miura 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 Miura Co Ltd filed Critical Miura Co Ltd
Priority to JP19349384A priority Critical patent/JPS6171320A/en
Publication of JPS6171320A publication Critical patent/JPS6171320A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission

Landscapes

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

Abstract

PURPOSE:To maintain high accuracy for a long period, by arranging a downstream-side bearing member of an axial flow impeller so that the member can be displaced in the axial direction, and elastically energizing the bering member to the side of the axial flow impeller by a spring member. CONSTITUTION:An axial flow impeller 1 is supported by upstream-side and downstream-side bearing members 12 and 2, which are provided at facing inner end parts of a bearing holders on the upstream side and on the downstream side, so that the member can be displaced in the axial direction. The bearing members 12 and 2, which are arranged in this way, are elastically energized in the thrust direction against a load in the axial flow direction by a spring member 3. Thus the axial flow impeller 1 is rotatably supported at a specified position by the upstreamside and downstream-side bearing members 12 and 2 at both ends of the impeller. Even if the shaft of the axial flow impeller and the bearings are abraded for the use for a long period, the shaft can be supported by a constant force all the time. Therefore, high accuracy can be maintained for a long period.

Description

【発明の詳細な説明】 ε発明の技術分野］ 本発明はタービン式流量計の軸受支持構造に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a bearing support structure for a turbine flowmeter.

［発明の技術向背ｍとその問題点］ 従来のタービン式流量計は、例えば第２図に示１ように
、上流側ケーシング（４）、上流側軸受ホルダー（５）
及び案内羽根（６）を内装した中間ケーシング（７）、
下流側軸受ホルダー（８）を内装した下流側ケーシング
（至）、及び上下軸受ホルダー（５）、（８）間のスラ
スト軸受で支持される軸流羽根（１）からなり、軸受ホ
ルダーに設けられたセットボルトｄＤのネジ込み量でス
ラスト軸受を介して軸流羽根のシャフトを所定位置に支
持するように構成されている。この方法によると、軸流
羽根に軸流方向の流体圧荷重が作用Ｊるため、長期間の
使用により軸流羽根のシャフト及び軸受が摩耗する。従
って流量計の精度を維持Ｊるためには定期的にセットボ
ルトのネジ込み量を調整し軸受の位置をリセットする必
要がある。[Technical disadvantages of the invention and its problems] A conventional turbine flowmeter has, for example, an upstream casing (4) and an upstream bearing holder (5) as shown in FIG.
and an intermediate casing (7) containing a guide vane (6),
It consists of a downstream casing (end) containing a downstream bearing holder (8), and an axial flow blade (1) supported by a thrust bearing between the upper and lower bearing holders (5) and (8), and is installed in the bearing holder. The shaft of the axial flow blade is supported in a predetermined position via the thrust bearing by the screwing amount of the set bolt dD. According to this method, a fluid pressure load in the axial direction is applied to the axial flow blade, so that the shaft and bearing of the axial flow blade are worn out after long-term use. Therefore, in order to maintain the accuracy of the flowmeter, it is necessary to periodically adjust the screwing amount of the set bolt and reset the bearing position.

また、高温流体計測時、シャフト及びケーシングの熱膨
張により軸受の押付は圧力が変化し計測誤差が生じるこ
とがある。Furthermore, when measuring high-temperature fluids, the pressure applied to the bearing changes due to thermal expansion of the shaft and casing, which may cause measurement errors.

［発明の目的〕 本発明では上記のような事情に鑑みて成されたもので、
その目的は常に一定の力で軸流羽根のシャフトを支持し
、軸受の位置の調整を不要としたタービン式流量計を促
供することにある。[Object of the invention] The present invention has been made in view of the above circumstances, and
The purpose is to provide a turbine-type flowmeter that supports the shaft of the axial flow blade with constant force at all times and eliminates the need to adjust the position of the bearing.

［発明の慨要１ 上記目的を達成覆るため本発明は、タービン式流量計に
おいて、軸流羽根の下流側軸受部材を軸方向に変位可能
に配置するとともに、このようにした軸受部材をスプリ
ング部材によって軸流羽根側に弾圧付勢することにより
、該軸流羽根を回転可能に軸承したことを特徴とするも
のである。[Summary of the Invention 1 In order to achieve the above object, the present invention provides a turbine flowmeter in which a bearing member on the downstream side of an axial flow blade is disposed so as to be displaceable in the axial direction, and such a bearing member is connected to a spring member. This is characterized in that the axial flow blade is rotatably supported by elastically biasing the axial flow blade toward the axial flow blade.

［発明の実施例１ 以下、本発明を図面に従って説明する。図面は本発明の
実施例を示−Ｊ’　ＩＩＩＦｉ面図である。図面中の符
号（４）は流体流路を構成づる上流側ケーシング、（７
）は流路の中心位置に設けられる上流側軸受ホルダー（
５）とその外側に配設される案内羽根（６）とを内装し
た状態の中間ケーシングである。　（１［１）は流路の
中心位置において上流側ホルダーと同軸とした下流側軸
受ホルダー（８）を内装している下流側ケーシングであ
る。（１）は上下流側軸受ホルダー間に設けられた軸流
羽根で、両ホルダーの対向内端部に設けられた上流及び
下流側軸受部材−１（２）で支持されている。（３）は
好ましくはコイル状としたスプリング部材であって、下
流側軸受（２）の後方に位置して下流側軸受ホルダー（
８）内に設けられている。下流側軸受部材（２）は上記
スプリングにより流体圧による軸流方向の荷重に対抗し
てスラスト方向に弾圧付勢され、これにより軸流羽根（
１）はその両端の上流及び下流側軸受部利潤、（２）に
より定位置に回転可能に軸承されている。尚、ｆ１３）
は下流側の案内羽根である。[Embodiment 1 of the Invention The present invention will be described below with reference to the drawings. The drawing shows an embodiment of the present invention and is a plane view taken along J'IIIFi. The code (4) in the drawing indicates the upstream casing that constitutes the fluid flow path, and (7)
) is the upstream bearing holder (
5) and a guide vane (6) disposed outside the intermediate casing. (1 [1) is a downstream casing that houses a downstream bearing holder (8) that is coaxial with the upstream holder at the center of the flow path. (1) is an axial flow blade provided between the upstream and downstream bearing holders, and is supported by upstream and downstream bearing members-1 (2) provided at opposing inner ends of both holders. (3) is preferably a coiled spring member, which is located behind the downstream bearing (2) and located in the downstream bearing holder (
8) is provided within. The downstream bearing member (2) is elastically biased by the spring in the thrust direction against the load in the axial direction due to the fluid pressure, thereby causing the axial flow blade (
1) is rotatably supported in a fixed position by upstream and downstream bearing portions at both ends thereof, and (2). In addition, f13)
is the guide vane on the downstream side.

［発明の効果］ 本発明は以、Ｆのように下流側軸受部材がスプリング部
Ｈにより軸流羽根側に弾圧付勢される構成であるので、
長期間の使用により軸流羽根のシャフトや軸受が摩耗し
てら常に一定の力でシャフトを支持することができる。[Effects of the Invention] Since the present invention has a configuration in which the downstream bearing member is elastically biased toward the axial flow blade by the spring portion H as shown in F,
Even if the shaft and bearings of the axial flow vane wear out due to long-term use, the shaft can always be supported with a constant force.

また、高温流体計測時、シャフト及びケーシングの熱膨
張により軸受の押圧が変化し計測誤差が生じるといった
こともなく、従来のように、定期的に行う軸受の位置調
整が不要となり、軸受調整前後の計測誤差がなくなるの
で、長期間に亙っで高精度を維持するタービン式流量計
を提供Ｊることかできる。In addition, when measuring high-temperature fluids, the pressure on the bearing does not change due to thermal expansion of the shaft and casing, causing measurement errors. This eliminates the need for periodic bearing position adjustment, which is required before and after bearing adjustment. Since measurement errors are eliminated, it is possible to provide a turbine flowmeter that maintains high accuracy over a long period of time.

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

第１図は本発明における一実施例を示す断面図、第２図
は従来の実施例を示す同上図である。 （１）・・・・・・軸流羽根　　　　（２）・・・・・
・下流側軸受（３）・・・・・・スプリング （４）・・・・・・上流側ケーシング （５）・・・・・・上流側軸受ホルダー（６）・・・・
・・案内料＋Ｌ１（７）・・・・・・中間ケーシング（
８）・・・・・・下流側軸受ホルダーｔｌＵｌ・・・・
・・下流側ケーシング（１１）・・・・・・セットポル
ｌ−（１２）・・・・・・上流側軸受特許出願人　　　
　　三浦工業株式会社代表者　三浦　保FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a diagram showing a conventional embodiment. (1)・・・Axial flow impeller (2)・・・・・・
・Downstream bearing (3)...Spring (4)...Upstream casing (5)...Upstream bearing holder (6)...
・・Guidance fee + L1 (7)・・・・・・Intermediate casing (
8)...Downstream bearing holder tlUl...
・・Downstream casing (11) ・・Set pole l-(12) ・・・Upstream bearing patent applicant
Miura Kogyo Co., Ltd. Representative Tamotsu Miura

Claims (1)

【特許請求の範囲】[Claims] タービン式流量計において、軸流羽根（１）の下流側軸
受部材（２）を軸方向に変位可能に配置するとともに、
このようにした軸受部材をスプリング部材（３）によっ
て軸流羽根側に弾圧付勢することにより、該軸流羽根を
回転可能に軸承したことを特徴とする軸流式流量計の軸
受支持構造。In the turbine flowmeter, the downstream bearing member (2) of the axial flow blade (1) is disposed so as to be displaceable in the axial direction, and
A bearing support structure for an axial flow meter, characterized in that the axial flow blade is rotatably supported by elastically urging the bearing member toward the axial flow blade by a spring member (3).
JP19349384A 1984-09-14 1984-09-14 Bearing supporting structure of turbine type flowmeter Pending JPS6171320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19349384A JPS6171320A (en) 1984-09-14 1984-09-14 Bearing supporting structure of turbine type flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19349384A JPS6171320A (en) 1984-09-14 1984-09-14 Bearing supporting structure of turbine type flowmeter

Publications (1)

Publication Number Publication Date
JPS6171320A true JPS6171320A (en) 1986-04-12

Family

ID=16308956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19349384A Pending JPS6171320A (en) 1984-09-14 1984-09-14 Bearing supporting structure of turbine type flowmeter

Country Status (1)

Country Link
JP (1) JPS6171320A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0296618A (en) * 1988-10-03 1990-04-09 Tokico Ltd Turbine type flowmeter
JPH04120423A (en) * 1990-09-11 1992-04-21 Tokyo Gas Co Ltd Flow control shut-off valve with built-in flowmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0296618A (en) * 1988-10-03 1990-04-09 Tokico Ltd Turbine type flowmeter
JPH04120423A (en) * 1990-09-11 1992-04-21 Tokyo Gas Co Ltd Flow control shut-off valve with built-in flowmeter

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