JP2006046971A - Gap measuring instrument - Google Patents

Gap measuring instrument Download PDF

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JP2006046971A
JP2006046971A JP2004224824A JP2004224824A JP2006046971A JP 2006046971 A JP2006046971 A JP 2006046971A JP 2004224824 A JP2004224824 A JP 2004224824A JP 2004224824 A JP2004224824 A JP 2004224824A JP 2006046971 A JP2006046971 A JP 2006046971A
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gap
measuring element
caliper
measuring device
moving distance
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Takayoshi Tagami
貴吉 田上
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Toshiba Corp
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Toshiba Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a gap measuring instrument for much more shortening measurement time while much more reducing variations in measurement values. <P>SOLUTION: This gap measuring instrument is equipped with a moving distance read part 31 sliding in the axial direction of a micrometer caliper body 30 to read distances and sizes of objects 43a and 43b under measurement while including a gauge head for inner diameter provided on one side of the caliper body 30 in a direction crossing the axial direction thereof and a gauge head for outer diameter provided on the other side of the caliper body and on the opposite side of the gauge head for inner diameter. The read part 31 is equipped with a digital display part 33 engaged therewith via a pivot 32, and being turnable, foldable, and invertible, while including the gauge heads 34 and 35 for measuring the distances and sizes of the objects 43a and 43b under measurement. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、隙間測定装置に係り、特に、数多くの構成要素で組み立てられたガスタービン燃焼器等の狭隘部の隙間を容易に測定可能な隙間測定装置に関する。   The present invention relates to a gap measuring apparatus, and more particularly, to a gap measuring apparatus that can easily measure a gap in a narrow portion such as a gas turbine combustor assembled with a large number of components.

例えば、火力発電プラントに適用されるガスタービンプラントに排熱回収ボイラおよび蒸気タービンプラントを組み合せたコンバインドサイクル発電プラントでは、安全な運転ができるように、定期的にメンテナンスを行っている。特に、ガスタービンプラントのガスタービン燃焼器は、燃焼ガス温度が１３００℃以上の高温ガスを取扱う関係上、各構成要素の細かい部分までも入念にメンテナンスを行って安全性を確認しており、その構成として図６に示すものがある。   For example, in a combined cycle power plant in which an exhaust heat recovery boiler and a steam turbine plant are combined with a gas turbine plant applied to a thermal power plant, maintenance is regularly performed so that safe operation is possible. In particular, the gas turbine combustor of the gas turbine plant, because of handling high-temperature gas with a combustion gas temperature of 1300 ° C or higher, has carefully checked the details of each component and confirmed its safety. There is a configuration shown in FIG.

このガスタービン燃焼器は、ライナ内筒１にスプリングシール３を介装させてトランジションピース内筒２を接続させている。また、ライナ内筒１の外側には、ライナ外筒を兼ねるフロースリーブ４が、トランジションピース内筒２の外周にはトランジションピース外筒５がそれぞれ設けられている。   In this gas turbine combustor, a transition piece inner cylinder 2 is connected to a liner inner cylinder 1 with a spring seal 3 interposed therebetween. A flow sleeve 4 also serving as a liner outer cylinder is provided on the outer side of the liner inner cylinder 1, and a transition piece outer cylinder 5 is provided on the outer periphery of the transition piece inner cylinder 2.

フロースリーブ４は、トランジションピース外筒５に設けたシールリング６を介して接続され、連続した環状通路７，８を形成している。そして、ライナ内筒１とフロースリーブ４とから燃焼器ライナ１０が構成されている。   The flow sleeve 4 is connected via a seal ring 6 provided in the transition piece outer cylinder 5 to form continuous annular passages 7 and 8. The liner inner cylinder 1 and the flow sleeve 4 constitute a combustor liner 10.

一方、燃焼器ライナ１０やトランジションピース内筒２を冷却する冷却空気の流れは、空気圧縮機１２から出た吐出空気Ａの一部をトランジションピース外筒５の空気孔９より環状流路８に流入し、トランジションピース内筒２の外面をインピンジ冷却させた後、トランジションピース内筒２、トランジションピース外筒５間をライナ内筒１側に向って流れ、対流冷却する。   On the other hand, the flow of the cooling air that cools the combustor liner 10 and the transition piece inner cylinder 2 is configured such that a part of the discharge air A that has exited from the air compressor 12 is transferred from the air holes 9 of the transition piece outer cylinder 5 to the annular flow path 8. After flowing in, the outer surface of the transition piece inner cylinder 2 is impingement cooled, and then flows between the transition piece inner cylinder 2 and the transition piece outer cylinder 5 toward the liner inner cylinder 1 for convection cooling.

残りの大半の空気は、フロースリーブ空気孔１１から流入し、ライナ内筒１の外面をインピンジ冷却し、ライナ内外筒であるフロースリーブ４とライナ内筒１の間の環状通路７を対流冷却する。   Most of the remaining air flows from the flow sleeve air hole 11, impinges the outer surface of the liner inner cylinder 1, and convectively cools the annular passage 7 between the liner inner cylinder 1 and the flow sleeve 4. .

トランジションピース内筒２を冷却した後の空気と、ライナ内筒１を冷却した後の空気とは、環状通路７で合流し、その一部は燃焼用空気Ａａとなり、燃焼ノズル１３から噴射された燃料１４と混合し、燃焼火炎Ｂを生成する。残りは、燃焼器ライナフィルム用冷却空気Ａｂとしてライナ内筒１の内面をフィルム冷却した後、燃焼火炎Ｂと合流し、燃焼ガスＣとなってガスタービン１５の初段落におけるタービンノズル１６に送られる。   The air after cooling the transition piece inner cylinder 2 and the air after cooling the liner inner cylinder 1 merge in the annular passage 7, part of which becomes combustion air Aa and is injected from the combustion nozzle 13. Mixing with the fuel 14 produces a combustion flame B. The remainder is film-cooled on the inner surface of the liner inner cylinder 1 as the combustor liner film cooling air Ab, and then merged with the combustion flame B to become combustion gas C and sent to the turbine nozzle 16 in the first stage of the gas turbine 15. .

このような構成を備えたガスタービン燃焼器は、例えば、図７に示すように、トランジションピース内筒２とガスタービン１５の初段落における外輪１７と内輪１８とで支持されたタービンノズル１６との隙間Ｓを測定し、この隙間Ｓが燃焼ガスＣによって熱伸びが生じ、設計寸法値を超えているかのメンテナンスを行う場合、特別な専用の測定装置がある訳ではなく、専らノギス本体１９を用いて測定していた。   For example, as shown in FIG. 7, the gas turbine combustor having such a configuration includes a transition piece inner cylinder 2 and a turbine nozzle 16 supported by an outer ring 17 and an inner ring 18 in the first stage of the gas turbine 15. When the gap S is measured and maintenance is performed to determine whether the gap S is caused by thermal expansion caused by the combustion gas C and exceeds the design dimension value, there is no special measuring device, and the caliper body 19 is used exclusively. Was measured.

このノギス１９は、図８に示すように、通常、市販され、よく知られたもので、ノギス本体２０の軸方向に交差する一側に設けた第１内径用測定子２１と、ノギス本体２０を摺動する移動距離読取り部２３に設けた第２内径用測定子２２とを備え、ノギス本体２０に対して移動距離読取り部２３を摺動させることによって第１内径用測定子２１と第２内径用測定子２２とで被測定部の内径または隙間を測定し、移動距離読取り部２３でその寸法を読み取る構成になっている。   As shown in FIG. 8, the caliper 19 is usually a commercially available and well-known one, and a first caliper 21 provided on one side intersecting the axial direction of the caliper main body 20, and the caliper main body 20. And a second inner diameter measuring element 22 provided on the moving distance reading section 23, and by sliding the moving distance reading section 23 against the caliper body 20, The inner diameter measuring element 22 is used to measure the inner diameter or the gap of the part to be measured, and the moving distance reading unit 23 reads the dimensions.

また、このノギス１９は、ノギス本体２０の軸方向に交差し、上述第１および第２内径用測定子２１，２２と反対側の他側に設けた第１外径用測定子２４と、ノギス本体２０を摺動する移動距離読取り部２３に設け第２外径用測定子２５とを備え、ノギス本体２０に対して移動距離読取り部２３を摺動させることによって第１外径用測定子２４と第２外径用測定子２５とで被測定部の外径を測定し、移動距離読取り部２３でその寸法を読み取る構成になっている。   The caliper 19 intersects with the caliper body 20 in the axial direction, and includes a first caliper 24 provided on the other side opposite to the first and second inner diameter gauges 21 and 22, and a caliper. The second outer diameter measuring element 25 is provided on the moving distance reading unit 23 that slides the main body 20, and the first outer diameter measuring element 24 is formed by sliding the moving distance reading unit 23 against the caliper main body 20. The second outer diameter measuring element 25 measures the outer diameter of the part to be measured, and the moving distance reading unit 23 reads the dimension.

また、移動距離読取り部２３は、読取り部ハンドル２６とストッパ２７とを備え、読取り部ハンドル２６をノギス本体２０に対して摺動させて被測定部の内径また外径を測定するとともに、ストッパ２７に押圧力を与えて読取り部ハンドル２６を一時的にロックさせる構成になっている。   The moving distance reading unit 23 includes a reading unit handle 26 and a stopper 27. The reading unit handle 26 is slid with respect to the caliper body 20 to measure the inner diameter or outer diameter of the measured portion. The reading portion handle 26 is temporarily locked by applying a pressing force to the reading portion 26.

なお、ノギスを用いて被測定物の隙間等を測定する技術には、例えば、特開２００２−２２８４０２号公報（特許文献１）が開示されている。
特開２００２−２２８４０２号公報 For example, Japanese Patent Application Laid-Open No. 2002-228402 (Patent Document 1) discloses a technique for measuring a gap or the like of an object to be measured using a caliper.
JP 2002-228402 A

トランジションピース内筒２とガスタービン１７の初段落におけるタービンノズル１６との隙間Ｓをノギス１９で測定する場合、幾つかの問題を抱えており、その一つに隙間Ｓを正確に測定できず、測定値にバラツキが出る場合がある。   When measuring the gap S between the transition piece inner cylinder 2 and the turbine nozzle 16 in the first stage of the gas turbine 17 with a caliper 19, there are several problems, and one of them cannot measure the gap S accurately. There may be variations in measured values.

すなわち、トランジションピース内筒２とタービンノズル１６との隙間Ｓをノギス１９で測定する場合、この部分は、非常に狭く、測定者が極端に身体を細くして内径４００ｍｍ〜５０ｍｍの円筒状の狭隘部に入り、手を一杯に伸ばし、身動きがとれない状況での測定を余儀なくされている。このため、測定に長時間を要するとともに、隙間Ｓの寸法を正確に測定することが難しい等の問題を抱えていた。   That is, when the gap S between the transition piece inner cylinder 2 and the turbine nozzle 16 is measured with the caliper 19, this portion is very narrow, and the measuring person extremely narrows the body to form a cylindrical narrow tube having an inner diameter of 400 mm to 50 mm. They are forced to make measurements in situations where they cannot enter their hands and reach their hands full. For this reason, the measurement requires a long time and has problems such as difficulty in accurately measuring the dimension of the gap S.

本発明は、このような事情に基づいてなされたもので、測定時間をより一層短かくさせるとともに、測定値のバラツキをより一層少なくさせる隙間測定装置を提供することを目的とする。   The present invention has been made based on such circumstances, and an object of the present invention is to provide a gap measuring device that can further shorten the measurement time and further reduce variations in measurement values.

本発明に係る隙間測定装置は、上述の目的を達成するために、請求項１に記載したように、ノギス本体の軸方向に沿って摺動し、被測定物の距離、寸法を読み取る移動距離読取り部を備えるとともに、前記ノギス本体の軸方向に交差する一側に設けた内径用測定子と、この内径用測定子の前記ノギス本体の反対側の他側に設けた外径用測定子を備えた隙間測定装置において、前記移動距離読取り部は、枢軸を介して係合させ、回転自在にして折り曲げ、反転自在なデジタル表示部を備えるとともに、被測定物の距離、寸法を測定する測定子を備えたものである。   In order to achieve the above-mentioned object, the gap measuring device according to the present invention slides along the axial direction of the caliper main body and reads the distance and dimensions of the object to be measured as described in claim 1. An inner diameter measuring element provided on one side intersecting the axial direction of the caliper body, and an outer diameter measuring element provided on the other side of the inner diameter measuring element opposite to the caliper body. In the gap measuring apparatus, the moving distance reading unit is provided with a digital display unit that is engaged with a pivot and can be rotated and bent and reversed, and a measuring element for measuring the distance and dimension of the object to be measured. It is equipped with.

また、本発明に係る隙間測定装置は、上述の目的を達成するために、請求項２に記載したように、移動距離読取り部は、ノギス本体の軸方向に対し、摺動力を与える把持部を備えたものである。   Moreover, in order to achieve the above-mentioned object, the gap measuring device according to the present invention includes a gripping unit that applies a sliding force to the caliper body in the axial direction. It is provided.

また、本発明に係る隙間測定装置は、上述の目的を達成するために、請求項３に記載したように、測定子は、固定用の測定子と摺動用の測定子を備えるとともに、固定用の測定子と摺動用の測定子とのそれぞれに被測定物の位置決め用の位置決め片を備えたものである。   Moreover, in order to achieve the above-mentioned object, the gap measuring device according to the present invention includes a fixing measuring element and a sliding measuring element as described in claim 3, and a fixing element. The measuring piece and the sliding measuring piece are each provided with a positioning piece for positioning the object to be measured.

また、本発明に係る隙間測定装置は、上述の目的を達成するために、請求項４に記載したように、固定用の測定子は、ストッパ片を備えたものである。   Moreover, in order to achieve the above-described object, the gap measuring device according to the present invention is such that the fixing measuring element includes a stopper piece.

また、本発明に係る隙間測定装置は、上述の目的を達成するために、請求項５に記載したように、ノギス本体は、端部に移動距離読取り部の移動を停止させるストッパ部を備えたものである。   Further, in order to achieve the above-mentioned object, the gap measuring device according to the present invention includes, as described in claim 5, the caliper main body provided with a stopper portion that stops the movement of the moving distance reading unit at the end portion. Is.

また、本発明に係る隙間測定装置は、上述の目的を達成するために、請求項６に記載したように、請求項１記載の隙間測定装置は、ガスタービン燃焼器のトランジションピースとガスタービン初段落のタービンノズルとの隙間の測定に適用することを特徴とする。   In order to achieve the above-mentioned object, the gap measuring apparatus according to the present invention is characterized in that, as described in claim 6, the gap measuring apparatus according to claim 1 includes the transition piece of the gas turbine combustor and the first gas turbine. The present invention is characterized in that it is applied to the measurement of the gap with the turbine nozzle in the paragraph.

本発明に係る隙間測定装置は、ノギス本体に設けた移動距離読取り部の枢軸に対し、回転自在にして折り曲げ、反転自在なデジタル表示部を備えたので、狭隘部の外径、内径または距離・寸法を測定する場合であっても、容易にして正確に測定して読み取ることができる。   The gap measuring device according to the present invention is provided with a digital display unit that can be rotated, bent and reversed with respect to the pivot of the moving distance reading unit provided on the caliper body, so that the outer diameter, inner diameter, distance, Even when measuring dimensions, it can be easily and accurately measured and read.

以下、本発明に係る隙間測定装置の実施形態を図面および図面に付した符号を引用して説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a gap measuring device according to the present invention will be described with reference to the drawings and reference numerals attached to the drawings.

図１は、本発明に係る隙間測定装置の実施形態を示す概略側面図である。   FIG. 1 is a schematic side view showing an embodiment of a gap measuring device according to the present invention.

本実施形態に係る隙間測定装置は、ノギス本体３０のスライド方向（軸方向）に沿って摺動する移動距離読取り部３１と、この移動距離読取り部３１に設けられた枢軸３２に係合し、３６０°回転自在にして折り曲げ、反転自在なデジタル表示部３３とを備えている。   The gap measuring device according to the present embodiment is engaged with a moving distance reading unit 31 that slides along the sliding direction (axial direction) of the caliper main body 30, and a pivot 32 provided in the moving distance reading unit 31, A digital display unit 33 that can be freely rotated and rotated 360 ° is provided.

また、本実施形態に係る隙間測定装置は、ノギス本体３０の一側に被測定物の外径または内径を測定する第１測定子３４と移動距離読取り部３１に固設するスライド用の第２測定子３５とを備える一方、ノギス本体３０の他側端に移動距離読取り部３１の摺動を停止させるストッパ部３６を備えている。   Further, the gap measuring device according to the present embodiment has a first measuring element 34 for measuring the outer diameter or inner diameter of the object to be measured on one side of the caliper body 30 and a second sliding member fixed to the moving distance reading unit 31. While provided with the measuring element 35, the stopper part 36 which stops the sliding of the movement distance reading part 31 at the other side end of the caliper main body 30 is provided.

固定用の第１測定子３４は、図２および図３に示すように、折り曲げ状のストッパ片３７を設けて第２測定子３５の移動を停止させる一方、被測定物への位置設定用としての位置決め片３８を備えている。なお、第２測定子３５も、第１測定子３４と同様に、被測定物への位置設定用としての位置決め片３９を備えている。   As shown in FIGS. 2 and 3, the first measuring element 34 for fixing is provided with a bent stopper piece 37 to stop the movement of the second measuring element 35, while setting the position on the object to be measured. The positioning piece 38 is provided. Note that, similarly to the first measuring element 34, the second measuring element 35 also includes a positioning piece 39 for setting the position on the object to be measured.

一方、移動距離読取り部３１は、図１に示すように、ノギス本体３０に対し、スライド方向（軸方向）に向って移動力を与える把手部４０と、内部に組み込まれた演算回路をＯＦＦさせるＯＦＦ用押しボタン４２と、内部に組み込まれた演算回路を起動させるとともに、デジタル表示部３３のデジタル値をゼロ値に修正する起動調整用押しボタン４３とを備えている。   On the other hand, as shown in FIG. 1, the moving distance reading unit 31 turns off the handle 40 that applies a moving force in the sliding direction (axial direction) to the caliper main body 30 and the arithmetic circuit incorporated therein. An OFF push button 42 and a start adjustment push button 43 that activates an arithmetic circuit incorporated therein and corrects the digital value of the digital display unit 33 to a zero value are provided.

このような構成を備えた隙間測定装置は、ノギスで被測定物４３ａ，４３ｂの隙間Ｓを測定する場合、具体的には、図７に示したトランジションピース内筒２とガスタービン１５の初段落におけるタービンノズル１６との隙間Ｓを測定する場合、図４および図５に示すように、被測定物４３ａに第１測定子３４を当接させるとともに、位置決め片３８で位置決めさせた後、移動距離読取り部３１の起動調整用押しボタン４２をＯＮさせ、把持部４０を用いて移動距離読取り部３１をノギス本体３０に対しろ、摺動させる。   When the gap measuring device having such a configuration measures the gap S between the measured objects 43a and 43b with a caliper, specifically, the first stage of the transition piece inner cylinder 2 and the gas turbine 15 shown in FIG. 4 and 5, when the first measuring element 34 is brought into contact with the object 43a and positioned by the positioning piece 38, the moving distance is measured. The activation adjustment push button 42 of the reading unit 31 is turned on, and the moving distance reading unit 31 is slid against the caliper body 30 using the gripping unit 40.

ノギス本体３０に対する移動距離読取り部３１の摺動中、第１測定子３５が被測定物４３に当接し、位置決め片３９で位置決めがなされると、デジタル表示部３３は、移動距離読取り部３１の移動距離をデジタル表示し、被測定物４３ａ，４３ｂの隙間Ｓを測定する。   When the moving distance reading unit 31 slides with respect to the caliper main body 30, when the first measuring element 35 comes into contact with the object to be measured 43 and positioning is performed by the positioning piece 39, the digital display unit 33 displays the moving distance reading unit 31. The moving distance is digitally displayed, and the gap S between the measured objects 43a and 43b is measured.

そして、被測定物４３ａ，４３ｂの隙間Ｓを測定しても、測定者がデジタル表示部３
３のデジタル表示値が読み切れない場合、デジタル表示部３３は、移動距離読取り部３１の枢軸３２を介して３６０°回転させるか、あるいは折り曲げて反転させれば、デジタル表示値を容易に読み取ることができる。 Even if the gap S between the objects to be measured 43a and 43b is measured, the measurer can display the digital display 3
When the digital display value 3 cannot be read, the digital display unit 33 can easily read the digital display value by rotating 360 ° through the pivot 32 of the moving distance reading unit 31 or by folding and reversing the digital display value. it can.

このように、本実施形態に係る隙間測定装置は、ノギス本体３０を摺動させる移動距離読取り部３１に枢軸３２を介して係合させ、３６０°回転自在で、かつ折り曲げ反転自在なデジタル表示部３３を備えたので、測定者の身動きの自由が僅かにしか許されない狭隘部の外径、内径または隙間の距離、寸法を測定する場合であっても、容易にして正確に測定して読み取ることができる。   As described above, the gap measuring device according to the present embodiment is engaged with the moving distance reading unit 31 for sliding the caliper main body 30 via the pivot 32, and can be rotated 360 ° and can be bent and reversed. Because it has 33, even when measuring the outer diameter, inner diameter or gap distance and dimensions of the narrow part where the freedom of movement of the measurer is only slightly allowed, it can be measured easily and accurately. Can do.

本発明に係る隙間測定装置を示すもので、被測定物の距離・寸法の測定前の姿を示す概略側面図。The schematic side view which shows the clearance gap measuring apparatus which concerns on this invention, and shows the figure before the measurement of the distance and dimension of a to-be-measured object. 図１のＡ−Ａ矢視方向から見た平面図。The top view seen from the AA arrow direction of FIG. 図２のＢ−Ｂ矢視方向から見た正面図。The front view seen from the BB arrow direction of FIG. 本発明に係る隙間測定装置を示すもので、被測定物の距離・寸法の測定中の姿を示す概略側面図。The schematic side view which shows the clearance gap measuring apparatus which concerns on this invention, and shows the figure in measurement of the distance and the dimension of a to-be-measured object. 図４の第２測定子の挙動を示す部分拡大図。The elements on larger scale which show the behavior of the 2nd probe of FIG. 従来のガスタービン燃焼器を示す一部切欠断面図。The partially cutaway sectional view showing the conventional gas turbine combustor. 図７で示したトランジションピースからガスタービンの初段落におけるタービンノズルまでの構造を示す部分拡大一部切欠断面図。FIG. 8 is a partially enlarged cross-sectional view showing a structure from the transition piece shown in FIG. 7 to the turbine nozzle in the first stage of the gas turbine. 従来のノギスを示す概略側面図。The schematic side view which shows the conventional caliper.

符号の説明Explanation of symbols

１ ライナ内筒
２ トランジションピース内筒
３ スプリングシール
４ フロースリーブ
５ トランジションピース外筒
６ シールリング
７，８ 環状通路
９ 空気孔
１０ 燃焼器ライナ
１１ フロースリーブ空気孔
１２ 空気圧縮機
１３ 燃焼ノズル
１４ 燃料
１５ ガスタービン
１６ タービンノズル
１７ 外輪
１８ 内輪
１９ ノギス
２０ ノギス本体
２１ 第１内径用測定子
２２ 第２内径用測定子
２３ 移動距離読取り部
２４ 第１外径用測定子
２５ 第２外径用測定子
２６ 読取り部ハンドル
２７ ストッパ
３０ ノギス本体
３１ 移動距離読取り部
３２ 枢軸
３３ デジタル表示部
３４ 第１測定子
３５ 第２測定子
３６ ストッパ部
３７ ストッパ片
３８，３９ 位置決め片
４０ 把持部
４１ ＯＦＦ用押しボタン
４２ 起動調整用押しボタン
４３ａ，４３ｂ 被測定部 DESCRIPTION OF SYMBOLS 1 Liner inner cylinder 2 Transition piece inner cylinder 3 Spring seal 4 Flow sleeve 5 Transition piece outer cylinder 6 Seal ring 7, 8 Annular passage 9 Air hole 10 Combustor liner 11 Flow sleeve air hole 12 Air compressor 13 Combustion nozzle 14 Fuel 15 Gas turbine 16 Turbine nozzle 17 Outer ring 18 Inner ring 19 Vernier caliper 20 Vernier caliper body 21 First inner diameter probe 22 Second inner diameter probe 23 Moving distance reading unit 24 First outer diameter probe 25 Second outer diameter probe 26 Reading unit handle 27 Stopper 30 Vernier caliper body 31 Travel distance reading unit 32 Axis 33 Digital display unit 34 First measuring unit 35 Second measuring unit 36 Stopper unit 37 Stopper piece 38, 39 Positioning piece 40 Gripping unit 41 OFF push button 42 Start Adjustment push buttons 43a, 43b

Claims (6)

ノギス本体の軸方向に沿って摺動し、被測定物の距離、寸法を読み取る移動距離読取り部を備えるとともに、前記ノギス本体の軸方向に交差する一側に設けた内径用測定子と、この内径用測定子の前記ノギス本体の反対側の他側に設けた外径用測定子を備えた隙間測定装置において、前記移動距離読取り部は、枢軸を介して係合させ、回転自在にして折り曲げ、反転自在なデジタル表示部を備えるとともに、被測定物の距離、寸法を測定する測定子を備えたことを特徴とする隙間測定装置。 A moving distance reading unit that slides along the axial direction of the caliper body and reads the distance and dimensions of the object to be measured, and an inner diameter measuring element provided on one side intersecting the axial direction of the caliper body, In the gap measuring device provided with the outer diameter measuring element provided on the other side of the inner caliper main body of the caliper main body, the moving distance reading unit is engaged through a pivot and is bent to be rotatable. A gap measuring device comprising a reversible digital display and a measuring element for measuring a distance and a dimension of an object to be measured. 移動距離読取り部は、ノギス本体の軸方向に対し、摺動力を与える把持部を備えたことを特徴とする請求項１記載の隙間測定装置。 The gap measuring device according to claim 1, wherein the moving distance reading unit includes a gripping unit that applies a sliding force to the axial direction of the caliper body. 測定子は、固定用の測定子と摺動用の測定子を備えるとともに、固定用の測定子と摺動用の測定子とのそれぞれに被測定物の位置決め用の位置決め片を備えたことを特徴とする請求項１記載の隙間測定装置。 The measuring element includes a fixing measuring element and a sliding measuring element, and each of the fixing measuring element and the sliding measuring element includes a positioning piece for positioning the object to be measured. The gap measuring device according to claim 1. 固定用の測定子は、ストッパ片を備えたことを特徴とする請求項１記載の隙間測定装置。 The gap measuring device according to claim 1, wherein the fixing probe includes a stopper piece. ノギス本体は、端部に移動距離読取り部の移動を停止させるストッパ部を備えたことを特徴とする請求項１記載の隙間測定装置。 The gap measuring device according to claim 1, wherein the caliper main body includes a stopper portion that stops movement of the moving distance reading unit at an end portion. 請求項１記載の隙間測定装置は、ガスタービン燃焼器のトランジションピースとガスタービン初段落のタービンノズルとの隙間の測定に適用することを特徴とする隙間測定装置。

The gap measuring device according to claim 1 is applied to measurement of a gap between a transition piece of a gas turbine combustor and a turbine nozzle in a first stage of a gas turbine.

JP2004224824A 2004-07-30 2004-07-30 Gap measuring instrument Pending JP2006046971A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009033422A (en) * 2007-07-26 2009-02-12 Mitsutoyo Corp Data transmission controller, its method, and measurement system
CN102589376A (en) * 2012-03-19 2012-07-18 天地科技股份有限公司 Calibration apparatus
CN107063021A (en) * 2017-03-20 2017-08-18 阜阳市特种设备监督检验中心 A kind of multifunctional lift examines measurement vernier scale
IT201700059159A1 (en) * 2017-05-30 2018-11-30 S C F Di Colpani Gianfranco E Pier Giuseppe S N C COMPARATOR GAUGE PERFECTED
KR20210143020A (en) * 2020-05-19 2021-11-26 한국전력공사 Apparatus for Detecting Defects in Gas Insulated Switchgear, Apparatus for Detecting Defacts and Driving method thereof
KR102537679B1 (en) * 2022-11-22 2023-05-31 주식회사 하나이엔씨 Clearance Measurement Device of Expansion Joint for Bridge Safety Diagnosis

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009033422A (en) * 2007-07-26 2009-02-12 Mitsutoyo Corp Data transmission controller, its method, and measurement system
CN102589376A (en) * 2012-03-19 2012-07-18 天地科技股份有限公司 Calibration apparatus
CN107063021A (en) * 2017-03-20 2017-08-18 阜阳市特种设备监督检验中心 A kind of multifunctional lift examines measurement vernier scale
IT201700059159A1 (en) * 2017-05-30 2018-11-30 S C F Di Colpani Gianfranco E Pier Giuseppe S N C COMPARATOR GAUGE PERFECTED
EP3410059A1 (en) * 2017-05-30 2018-12-05 S.C.F. di Colpani Gianfranco e Pier Giuseppe S.n.c. Improved caliper
KR20210143020A (en) * 2020-05-19 2021-11-26 한국전력공사 Apparatus for Detecting Defects in Gas Insulated Switchgear, Apparatus for Detecting Defacts and Driving method thereof
KR102439189B1 (en) * 2020-05-19 2022-09-02 한국전력공사 Apparatus for Detecting Defects in Gas Insulated Switchgear, Apparatus for Detecting Defacts and Driving method thereof
KR102537679B1 (en) * 2022-11-22 2023-05-31 주식회사 하나이엔씨 Clearance Measurement Device of Expansion Joint for Bridge Safety Diagnosis

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