JP2003337001A - Device and method for measuring groove pitch size - Google Patents
Device and method for measuring groove pitch sizeInfo
- Publication number
- JP2003337001A JP2003337001A JP2002145096A JP2002145096A JP2003337001A JP 2003337001 A JP2003337001 A JP 2003337001A JP 2002145096 A JP2002145096 A JP 2002145096A JP 2002145096 A JP2002145096 A JP 2002145096A JP 2003337001 A JP2003337001 A JP 2003337001A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- measuring
- hard ball
- gauge
- parallel
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、原子力プラントの
構造物に使用されるスタッドボルトに加工された平行溝
のピッチ寸法を簡単に測定できる溝ピッチ寸法測定器と
溝ピッチ寸法測定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a groove pitch size measuring device and a groove pitch size measuring method capable of easily measuring the pitch size of a parallel groove formed in a stud bolt used for a structure of a nuclear power plant.
【０００２】[0002]
【従来の技術】原子炉圧力容器に使用するスタッドボル
トの平行溝は図４に示すように、溝の両側に角度がつい
た特殊な形状となっている。2. Description of the Related Art The parallel groove of a stud bolt used in a reactor pressure vessel has a special shape with angles on both sides of the groove as shown in FIG.
【０００３】このような、スタッドボルトの特殊形状の
溝ピッチを累積で測定する測定器は市販されていないの
で溝ピッチの寸法の測定には手間がかかり、またそのわ
りには精度が良くなかった。Since such a measuring device for cumulatively measuring the groove pitch of the special shape of the stud bolt is not commercially available, it takes a lot of time to measure the dimension of the groove pitch, and the accuracy is not good.
【０００４】[0004]
【発明が解決しようとする課題】従来、スタッドボルト
の平行溝のピッチ寸法を測定する市販の測定器がなかっ
た。そこで、本発明の課題は、上記した従来技術の問題
点を解決するため、平行溝の累積ピッチ寸法を測定する
ことができる測定器及びその測定方法を提供することに
ある。Conventionally, there is no commercially available measuring instrument for measuring the pitch dimension of the parallel groove of the stud bolt. Therefore, an object of the present invention is to provide a measuring device and a measuring method therefor capable of measuring the cumulative pitch dimension of parallel grooves in order to solve the above-mentioned problems of the conventional technique.
【０００５】[0005]
【課題を解決するための手段】本発明の上記課題はつぎ
の構成によって解決される。請求項１記載の発明は、平
行溝を設けたボルト製品の該平行溝の溝ピッチ寸法測定
器において、該平行溝を設けたボルト製品と同一形状の
平行溝（基準溝、ＮＯ．１溝、ＮＯ．２溝、・・・）を
有し、かつ該平行溝（基準溝、ＮＯ．１溝、ＮＯ．２
溝、・・・）が基準位置にある基準溝と該基準溝からの
ピッチ寸法がそれぞれ既知であるその他の複数の溝（Ｎ
Ｏ．１溝、ＮＯ．２溝、・・・）からなるマスターゲー
ジ（１）と、基準硬球ｂ（４）を取り付けた基準位置に
ある基準ネジ穴（５ａ）と該基準ネジ穴（５ａ）からマ
スターゲージ（１）の平行溝（基準溝、ＮＯ．１溝・・
・）と同様なピッチ寸法で設けられた測定用硬球ａ
（３）が着脱可能なその他の複数のネジ穴（５ｂ、５
ｃ、・・・）を有し、該基準ネジ穴（５ａ）に取り付け
た基準硬球ｂ（４）と一体的に連動する軸部（６）と測
定用硬球ａ（３）がボルト製品の平行溝の溝ピッチ寸法
測定対象の溝に対応する位置にあるマスターゲージ
（１）の溝Ａに入れ、かつ前記基準硬球ｂ（４）をマス
ターゲージ（１）の基準溝Ｂに入れたときに前記基準ネ
ジ穴（５ａ）内で前記基準硬球ｂ（４）が移動する量を
計測でき、前記軸部（６）に先端が当接するダイヤルゲ
ージ（７）とを備えたピッチ測定器（２）とを含む溝ピ
ッチ寸法測定器。The above-mentioned problems of the present invention can be solved by the following constitutions. According to a first aspect of the present invention, in a groove pitch dimension measuring device for a parallel grooved bolt product, the parallel groove having the same shape as the parallel grooved bolt product (reference groove, No. 1 groove, No. 2 groove, ..., And the parallel groove (reference groove, NO. 1 groove, NO. 2)
, Which is a reference position, and a plurality of other grooves (N) whose pitch dimensions from the reference groove are known.
O. 1 groove, NO. Master groove (1) consisting of two grooves, a reference screw hole (5a) at the reference position where the reference hard ball b (4) is attached, and the master gauge (1) from the reference screw hole (5a). Parallel groove (reference groove, NO.1 groove ...
・) Hard balls for measurement a with pitch similar to
(3) other multiple screw holes (5b, 5)
c), and the measuring hard sphere a (3) is parallel to the shaft part (6) and the measuring hard sphere a (3) that are integrally linked to the reference hard sphere b (4) attached to the reference screw hole (5a). Groove pitch dimension of the groove When the master gauge (1) is placed in the groove A of the master gauge (1) at the position corresponding to the groove to be measured, and the reference hard ball b (4) is placed in the reference groove B of the master gauge (1), A pitch measuring device (2) equipped with a dial gauge (7) which can measure the amount of movement of the reference hard ball b (4) in the reference screw hole (5a) and whose tip comes into contact with the shaft portion (6); Groove pitch dimension measuring instrument including.
【０００６】前記請求項１記載の溝ピッチ寸法測定器の
基準ネジ穴（５ａ）に取り付けた測定用基準硬球ｂ
（４）と一体的に連動する軸部（６）はピッチ測定器
（２）の軸方向に摺動可能な構成とすることができる。A reference hard ball b for measurement mounted in the reference screw hole (5a) of the groove pitch dimension measuring device according to claim 1.
The shaft portion (6) integrally interlocking with (4) can be configured to be slidable in the axial direction of the pitch measuring device (2).
【０００７】請求項３記載の発明は、前記請求項１記載
の溝ピッチ寸法測定器の測定用硬球ａ（３）をボルト製
品の平行溝の溝ピッチ寸法測定対象の溝に対応する位置
にあるマスターゲージ（１）の溝Ａに入れ、かつ測定器
（２）の基準ネジ穴（５ａ）に取り付けた測定用基準硬
球ｂ（４）をマスターゲージ（１）の基準溝Ｂに入れ、
このときのダイヤルゲージ（７）の目盛をマスターゲー
ジ（１）の基準溝Ｂにある前記測定器（２）の基準硬球
ｂ（４）と前記溝ピッチ寸法測定対象の溝に対応する位
置にあるマスターゲージ（１）の溝Ａにある測定用硬球
ａ（３）との距離を示す基準寸法とし、次いで、前記ボ
ルト製品の溝ピッチ寸法測定対象の溝に前記測定器
（２）の測定用硬球ａ（３）を入れ、かつ前記ボルト製
品の基準となる溝に前記測定器（２）の基準硬球ｂ
（４）を入れて、このときのダイヤルゲージ（７）の目
盛を読みとり、前記マスターゲージ（１）で得られた前
記基準寸法と比較して、その差からボルト製品の該平行
溝の溝ピッチ寸法を測定することを特徴とする溝ピッチ
寸法測定方法。According to a third aspect of the present invention, the measuring hard sphere a (3) of the groove pitch measuring instrument according to the first aspect is located at a position corresponding to the groove of the parallel groove of the bolt product for measuring the groove pitch dimension. Put into the groove A of the master gauge (1) and put into the reference groove B of the master gauge (1) the measuring reference hard ball b (4) attached to the reference screw hole (5a) of the measuring instrument (2),
The scale of the dial gauge (7) at this time is located at a position corresponding to the reference hard ball b (4) of the measuring instrument (2) in the reference groove B of the master gauge (1) and the groove for measuring the groove pitch dimension. The master gauge (1) has a reference dimension indicating the distance from the measurement hard sphere a (3) in the groove A, and then the groove pitch dimension of the bolt product is measured in the measurement target groove of the measuring instrument (2). a (3) is inserted, and the reference hard ball of the measuring device (2) is inserted in the groove serving as the reference of the bolt product.
(4) is inserted, the scale of the dial gauge (7) at this time is read, compared with the reference dimension obtained in the master gauge (1), and from the difference, the groove pitch of the parallel groove of the bolt product. A groove pitch dimension measuring method characterized by measuring dimensions.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態を図
１、図２により説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.
【０００９】この溝ピッチ寸法測定器は、スタッドボル
ト製品と同一形状溝でピッチ間寸法の分かっているマス
ターゲージ１と、このマスターゲージ１の溝ピッチ間寸
法測定を行う測定器２より構成されている。This groove pitch dimension measuring device is composed of a master gauge 1 whose groove has the same shape as the stud bolt product and whose pitch dimension is known, and a measuring instrument 2 which measures the groove pitch dimension of this master gauge 1. There is.
【００１０】初期設定として、マスターゲージ１の基準
溝から各溝（１〜２０）までのピッチ寸法を測定し、こ
れを基準寸法とする。As an initial setting, the pitch dimension from the reference groove of the master gauge 1 to each groove (1 to 20) is measured and used as the reference dimension.
【００１１】測定器２には、マスターゲージ１と同様な
ピッチ寸法で測定用硬球３が挿入できるネジ穴５（５
ａ，５ｂ，５ｃ，・・・）を設け、溝ピッチ寸法測定対
象のスタッドボルトの溝に対応する位置にあるネジ穴５
に測定用硬球３を締め付ける。測定用基準硬球４は、測
定用硬球３と同一寸法で常にマスターゲージ１の溝の基
準穴に入れるものであり、測定器２の基準穴５ａに取り
付けた状態にしておき、これを測定器２から取り外しは
しない。測定用基準硬球４は測定器２中の長手方向に伸
びる軸部６と一体に測定器２の基準硬球４の摺動し得る
隙間ｓ１、ｓ２の範囲内を移動することができる。軸部
６はダイヤルゲージ７の先端と接触しているので、前記
基準硬球４の隙間ｓ１、ｓ２の範囲内での移動量はダイ
ヤルゲージ７で確認することができる。The measuring device 2 has screw holes 5 (5) into which the measuring hard balls 3 can be inserted with the same pitch dimension as the master gauge 1.
a, 5b, 5c, ...), and screw holes 5 are provided at positions corresponding to the grooves of the stud bolt whose groove pitch dimension is to be measured.
Tighten the measuring hard ball 3 to. The measuring reference hard sphere 4 has the same size as the measuring hard sphere 3 and is always inserted in the reference hole of the groove of the master gauge 1. The measuring reference hard sphere 4 is attached to the reference hole 5a of the measuring instrument 2, and the measuring reference 2 Do not remove from. The reference hard sphere 4 for measurement can move within the range of the slidable gaps s1 and s2 of the reference hard sphere 4 of the measuring instrument 2 integrally with the shaft portion 6 extending in the longitudinal direction in the measuring instrument 2. Since the shaft portion 6 is in contact with the tip of the dial gauge 7, the amount of movement of the reference hard ball 4 within the gaps s1 and s2 can be confirmed by the dial gauge 7.
【００１２】スタッドボルト製品の平行溝ピッチ寸法測
定方法を図３により説明する。ここでは、製品の溝Ｎ
ｏ．１とＮｏ．３のピッチを測定する場合について説明
する。A method for measuring the parallel groove pitch dimension of a stud bolt product will be described with reference to FIG. Here, the product groove N
o. 1 and No. A case of measuring the pitch of 3 will be described.
【００１３】（ａ）マスターゲージによる測定器の調整
（ａ-１）測定器２の測定用硬球３をネジ穴５（Ｎｏ．
２）に取り付ける。
（ａ-２）測定器２の測定用硬球３をマスターゲージ１
の溝（Ｎｏ．２）に入れ、測定用基準硬球４をマスター
ゲージ１の基準溝に入れ、このときの測定器２のダイヤ
ルゲージ７の目盛を０に合わせる。例えば、マスターゲ
ージ１の基準溝から溝Ｎｏ．２までの基準寸法が２０ｍ
ｍの場合、ダイヤルゲージ７の０が２０ｍｍである。(A) Adjustment of measuring device by master gauge (a-1) The measuring hard ball 3 of the measuring device 2 is provided with a screw hole 5 (No.
Attach to 2). (A-2) The measuring hard ball 3 of the measuring device 2 is replaced with the master gauge 1
In the groove (No. 2), the reference hard ball 4 for measurement is put in the reference groove of the master gauge 1, and the dial gauge 7 of the measuring instrument 2 at this time is set to zero. For example, from the reference groove of the master gauge 1 to the groove number. Standard size up to 2 is 20m
In the case of m, 0 of the dial gauge 7 is 20 mm.
【００１４】（ｂ）測定器による製品の溝ピッチ測定
（ｂ−１）測定器２の測定用硬球３をスタッドボルト製
品の平行溝（Ｎｏ．３）に入れ、測定用基準硬球４を前
記製品の平行溝（Ｎｏ．１）に入れる。このとき、測定
器２のダイヤルゲージ７の目盛を読み取る。例えば、ダ
イヤルゲージ７の読みが＋０．０１の場合、スタッドタ
イヤ製品のピッチ寸法は２０．０１ｍｍとなる。(B) Groove pitch measurement of the product by a measuring instrument (b-1) The measuring hard ball 3 of the measuring instrument 2 is put into the parallel groove (No. 3) of the stud bolt product, and the measuring reference hard ball 4 is the product. Put in the parallel groove (No. 1). At this time, the scale of the dial gauge 7 of the measuring instrument 2 is read. For example, when the reading of the dial gauge 7 is +0.01, the pitch dimension of the stud tire product is 20.01 mm.
【００１５】上記手順で全ての平行溝間のピッチ測定が
できる。With the above procedure, the pitch between all the parallel grooves can be measured.
【００１６】[0016]
【発明の効果】本発明によれば、スタッドボルトに限ら
ず溝ピッチ寸法測定を同様な方法で、平行溝の累積ピッ
チ寸法を簡単に且つ、効率良く測定することができる。According to the present invention, the cumulative pitch dimension of parallel grooves can be easily and efficiently measured by the same method as the groove pitch dimension measurement, not limited to the stud bolt.
【図１】 本発明による溝ピッチ測定器の概略図であ
る。FIG. 1 is a schematic view of a groove pitch measuring device according to the present invention.
【図２】 図１のピッチ測定器の要部概略図である。FIG. 2 is a schematic view of a main part of the pitch measuring device of FIG.
【図３】 本発明による溝ピッチ測定要領である。FIG. 3 is a groove pitch measuring procedure according to the present invention.
【図４】 ボルトの平行溝形状である。FIG. 4 is a parallel groove shape of a bolt.
１ マスターゲージ ２ 測定器
３、４ 測定用硬球 ５ ネジ穴
６ 軸 ７ ダイヤルゲー
ジ
８ ボルト1 Master gauge 2 Measuring instruments 3 and 4 Hard ball for measurement 5 Screw hole 6 Axis 7 Dial gauge 8 Bolt
フロントページの続き Ｆターム(参考） 2F062 AA38 BC62 BC65 CC27 EE01 EE03 EE04 EE05 EE07 EE63 FF02 FF03 FF07 FG07 GG18 GG29 HH13 HH21 LL01 MM01 MM06 2G075 CA04 DA02 FA08 FA11 FC14 GA16 Continued front page F term (reference) 2F062 AA38 BC62 BC65 CC27 EE01 EE03 EE04 EE05 EE07 EE63 FF02 FF03 FF07 FG07 GG18 GG29 HH13 HH21 LL01 MM01 MM06 2G075 CA04 DA02 FA08 FA11 FC14 GA16
Claims (3)
溝ピッチ寸法測定器において、 該平行溝を設けたボルト製品と同一形状の平行溝を有
し、かつ該平行溝が基準位置にある基準溝と該基準溝か
らのピッチ寸法がそれぞれ既知であるその他の複数の溝
からなるマスターゲージと、 基準硬球ｂを取り付けた基準位置にある基準ネジ穴と該
基準ネジ穴からマスターゲージの平行溝と同様なピッチ
寸法で設けられた測定用硬球ａが着脱可能なその他の複
数のネジ穴を有し、該基準ネジ穴に取り付けた基準硬球
ｂと一体的に連動する軸部と測定用硬球ａがボルト製品
の平行溝の溝ピッチ寸法測定対象の溝に対応する位置に
あるマスターゲージの溝Ａに入れ、かつ前記基準硬球ｂ
をマスターゲージの基準溝Ｂに入れたときに前記基準ネ
ジ穴内で前記基準硬球ｂが移動する量を計測でき、前記
軸部に先端が当接するダイヤルゲージとを備えたピッチ
測定器とを含むことを特徴する溝ピッチ寸法測定器。1. A groove pitch dimension measuring instrument for a parallel grooved bolt product, wherein the parallel groove has a parallel groove having the same shape as the parallel grooved bolt product, and the parallel groove is at a reference position. A master gauge consisting of a certain reference groove and a plurality of other grooves whose pitch dimension from the reference groove is known, a reference screw hole at a reference position where a reference hard ball b is attached, and a parallel of the master gauge from the reference screw hole. A hard ball for measurement, which has a plurality of other screw holes in which the hard ball for measurement a provided with the same pitch dimension as the groove can be attached and detached, and which is integrally interlocked with a reference hard ball b attached to the reference screw hole. a is inserted into the groove A of the master gauge at a position corresponding to the groove pitch dimension measurement target of the parallel groove of the bolt product, and the reference hard ball b
A pitch gauge equipped with a dial gauge, the tip of which abuts on the shaft portion, which is capable of measuring the amount of movement of the reference hard ball b in the reference screw hole when inserted into the reference groove B of the master gauge. A groove pitch dimension measuring device characterized by.
と一体的に連動する軸部は測定器の軸方向に摺動可能な
構成であることを特徴とする請求項１記載の溝ピッチ寸
法測定器。2. The groove pitch dimension according to claim 1, wherein the shaft portion integrally interlocked with the reference hard ball for measurement mounted in the reference screw hole is configured to be slidable in the axial direction of the measuring instrument. Measuring instrument.
定用硬球ａをボルト製品の平行溝の溝ピッチ寸法測定対
象の溝に対応する位置にあるマスターゲージの溝Ａに入
れ、かつ測定器の基準ネジ穴に取り付けた測定用基準硬
球ｂをマスターゲージの基準溝Ｂに入れ、このときのダ
イヤルゲージの目盛をマスターゲージの基準溝Ｂにある
前記測定器の基準硬球ｂと前記溝ピッチ寸法測定対象の
溝に対応する位置にあるマスターゲージの溝Ａにある測
定用硬球ａとの距離を示す基準寸法とし、 次いで、前記ボルト製品の溝ピッチ寸法測定対象の溝に
前記測定器の測定用硬球ａを入れ、かつ前記ボルト製品
の基準となる溝に前記測定器の基準硬球ｂを入れて、こ
のときのダイヤルゲージの目盛を読みとり、前記マスタ
ーゲージで得られた前記基準寸法と比較して、その差か
らボルト製品の該平行溝の溝ピッチ寸法を測定すること
を特徴とする溝ピッチ寸法測定方法。3. The measuring hard ball a of the groove pitch measuring instrument according to claim 1 is put into the groove A of the master gauge at a position corresponding to the groove of the groove pitch dimension of the parallel groove of the bolt product, and is measured. The reference hard sphere b for measurement attached to the reference screw hole of the measuring instrument is put in the reference groove B of the master gauge, and the dial gauge at this time has the scale of the dial gauge in the reference groove B of the master gauge. A reference dimension indicating the distance from the measuring hard sphere a in the groove A of the master gauge located at the position corresponding to the dimension measurement target groove, and then measuring the groove pitch dimension of the bolt product with the measuring instrument Insert a hard ball a for use, and put the reference hard ball b of the measuring instrument in the groove serving as the reference of the bolt product, read the dial gauge scale at this time, and obtain the reference size obtained by the master gauge. Compared to the groove pitch dimension measuring method and measuring the groove pitch dimension of the flat Gyomizo bolts products from the difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002145096A JP2003337001A (en) | 2002-05-20 | 2002-05-20 | Device and method for measuring groove pitch size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002145096A JP2003337001A (en) | 2002-05-20 | 2002-05-20 | Device and method for measuring groove pitch size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003337001A true JP2003337001A (en) | 2003-11-28 |
Family
ID=29704555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002145096A Pending JP2003337001A (en) | 2002-05-20 | 2002-05-20 | Device and method for measuring groove pitch size |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003337001A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090769A (en) * | 2013-01-29 | 2013-05-08 | 中国核动力研究设计院 | Measurement tool and measurement method of nuclear-power-station control rod drive mechanism drive rod space width |
| CN104482839A (en) * | 2014-12-22 | 2015-04-01 | 南车株洲电机有限公司 | Method and tool for measuring turned inner cone hole |
| CN104930951A (en) * | 2015-06-25 | 2015-09-23 | 慈溪市汇丽机电有限公司 | Handheld slot pitch detection device |
| CN105180774A (en) * | 2015-05-22 | 2015-12-23 | 山东省特种设备检验研究院泰安分院 | Elevator guide rail top surface distance measuring instrument and measuring method |
| CN105423969A (en) * | 2015-11-18 | 2016-03-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for measuring geometric parameters of large-diameter thread form |
| CN108385970A (en) * | 2018-03-15 | 2018-08-10 | 陕西建工集团有限公司 | A kind of rectangular channel construction tool and construction method |
| CN109457346A (en) * | 2018-12-12 | 2019-03-12 | 南通神马线业有限公司 | A kind of weaving twisting machine drum shaft positioning rule error checking arrangement and application method |
| KR102017521B1 (en) * | 2018-06-28 | 2019-09-03 | 일륭기공(주) | Inner ball joint assembly measuring device |
| CN110793413A (en) * | 2019-10-18 | 2020-02-14 | 罗亨远 | Steel construction installation engineering check out test set |
| KR20200126771A (en) * | 2019-04-30 | 2020-11-09 | 삼성중공업 주식회사 | An apparatus for measuring gap of screw |
| KR102255290B1 (en) * | 2020-09-11 | 2021-05-25 | 한전케이피에스 주식회사 | Pitch gauge |
| CN114413724A (en) * | 2022-01-20 | 2022-04-29 | 洛阳普瑞森精密轴承有限公司 | Tool for measuring raceway groove of rotor mandrel of X-ray tube |
-
2002
- 2002-05-20 JP JP2002145096A patent/JP2003337001A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090769A (en) * | 2013-01-29 | 2013-05-08 | 中国核动力研究设计院 | Measurement tool and measurement method of nuclear-power-station control rod drive mechanism drive rod space width |
| CN104482839A (en) * | 2014-12-22 | 2015-04-01 | 南车株洲电机有限公司 | Method and tool for measuring turned inner cone hole |
| CN105180774A (en) * | 2015-05-22 | 2015-12-23 | 山东省特种设备检验研究院泰安分院 | Elevator guide rail top surface distance measuring instrument and measuring method |
| CN104930951A (en) * | 2015-06-25 | 2015-09-23 | 慈溪市汇丽机电有限公司 | Handheld slot pitch detection device |
| CN105423969A (en) * | 2015-11-18 | 2016-03-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for measuring geometric parameters of large-diameter thread form |
| CN108385970B (en) * | 2018-03-15 | 2020-06-09 | 陕西建工集团有限公司 | Rectangular groove construction tool and construction method |
| CN108385970A (en) * | 2018-03-15 | 2018-08-10 | 陕西建工集团有限公司 | A kind of rectangular channel construction tool and construction method |
| KR102017521B1 (en) * | 2018-06-28 | 2019-09-03 | 일륭기공(주) | Inner ball joint assembly measuring device |
| CN109457346A (en) * | 2018-12-12 | 2019-03-12 | 南通神马线业有限公司 | A kind of weaving twisting machine drum shaft positioning rule error checking arrangement and application method |
| KR20200126771A (en) * | 2019-04-30 | 2020-11-09 | 삼성중공업 주식회사 | An apparatus for measuring gap of screw |
| KR102426838B1 (en) * | 2019-04-30 | 2022-07-28 | 삼성중공업 주식회사 | An apparatus for measuring gap of screw |
| CN110793413A (en) * | 2019-10-18 | 2020-02-14 | 罗亨远 | Steel construction installation engineering check out test set |
| KR102255290B1 (en) * | 2020-09-11 | 2021-05-25 | 한전케이피에스 주식회사 | Pitch gauge |
| CN114413724A (en) * | 2022-01-20 | 2022-04-29 | 洛阳普瑞森精密轴承有限公司 | Tool for measuring raceway groove of rotor mandrel of X-ray tube |
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