JPH0618692A - Stud bolt loading/unloading apparatus - Google Patents
Stud bolt loading/unloading apparatusInfo
- Publication number
- JPH0618692A JPH0618692A JP4017912A JP1791292A JPH0618692A JP H0618692 A JPH0618692 A JP H0618692A JP 4017912 A JP4017912 A JP 4017912A JP 1791292 A JP1791292 A JP 1791292A JP H0618692 A JPH0618692 A JP H0618692A
- Authority
- JP
- Japan
- Prior art keywords
- stud bolt
- bolt
- fitting
- male
- fastening member
- 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.)
- Withdrawn
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
Landscapes
- Clamps And Clips (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、原子炉圧力容器の上蓋
を固定するためのスタッドボルトを容器胴部に対して着
脱するスタッドボルトの着脱装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stud bolt attaching / detaching device for attaching / detaching a stud bolt for fixing an upper lid of a reactor pressure vessel to a vessel body.
【０００２】[0002]
【従来の技術】一般に、沸騰水型原子炉における原子炉
圧力容器の上蓋は、容器胴部に立設したスタッドボルト
とナットとによって締結されている。また、原子炉運転
開始後の燃料棒の交換、定期検査時においては、前記上
蓋を外した状態で、各種作業が実施されることになる
が、締結に使用されているスタッドボルトは、燃料棒の
搬送の便や品質維持の確認等のために、容器胴部から取
り外す作業をともなう。この脱着作業は、放射性管理区
域内で行われることになるため、小さな労力で効率送実
施する必要性がある。2. Description of the Related Art Generally, an upper lid of a reactor pressure vessel in a boiling water reactor is fastened by a stud bolt and a nut erected on a vessel body. Also, at the time of fuel rod replacement and periodic inspections after the start of reactor operation, various work will be performed with the upper lid removed, but the stud bolts used for fastening are the fuel rods. It is necessary to remove from the body of the container for convenience of transportation and confirmation of quality maintenance. Since this desorption work will be performed within the radioactive control area, it is necessary to efficiently carry out the desorption work with a small amount of labor.
【０００３】出願人は、特開昭６３ー１７２９９５号公
報（スタッドボルトの着脱装置）を先に提案した。前記
スタッドボルトの着脱装置は、図９に示すように、ユニ
ット台１と一体のボルト吊持部２に、スタッドボルト３
の頭部に螺合させる吊持ロッド４をスタッドボルト３の
軸線方向に沿って移動可能に設けるとともに、ユニット
台１に対して前記軸線方向に移動可能なボルト弛緩部５
を設け、該ボルト弛緩部５に吊持ロッド４の回りを回転
してスタッドボルト３の頭部に着脱可能に係合するレン
チ部６を設けてなり、前記ボルト吊持部２は、レンチ部
６によって回転させられるスタッドボルト３における軸
線方向の移動量と同期して吊持ロッド４を移動させる昇
降手段７を具備した構造とされている。The applicant first proposed Japanese Patent Laid-Open No. 63-172995 (stud bolt attaching / detaching device). As shown in FIG. 9, the attachment / detachment device of the stud bolt includes a stud bolt 3 and a stud bolt 3 which are integrated with the unit base 1.
A suspension rod 4 screwed to the head of the stud is provided so as to be movable along the axial direction of the stud bolt 3, and a bolt loosening portion 5 that is movable in the axial direction with respect to the unit base 1.
And a wrench portion 6 which is removably engaged with the head of the stud bolt 3 by rotating around the suspension rod 4 in the bolt loosening portion 5, and the bolt suspension portion 2 comprises a wrench portion. The structure is provided with an elevating means 7 for moving the suspension rod 4 in synchronization with the amount of axial movement of the stud bolt 3 rotated by 6.
【０００４】そして、スタッドボルト３を取り外す場合
は、予めナットとスタッドボルト３とによる上蓋の締結
状態を解除しておき、ユニット台１が下降することによ
り、ボルト吊持部２における吊持ロッド４の下端と、ボ
ルト弛緩部５におけるレンチ部６とを、スタッドボルト
３の上方位置に合わせる。そして、吊持ロッド回転機構
８の作動によって、吊持ロッド４の先端４ａをスタッド
ボルト３における頭部のめねじ部３ａに螺合させる。次
いで、吊持ロッド４を上昇させ、スタッドボルト３を上
方に付勢してスタッドボルト３の荷重を支持した状態と
するとともに、ボルト弛緩部５を作動させ、そのレンチ
部６によってスタッドボルト３を回転させて弛緩し、ス
タッドボルト３弛緩時の上昇速度に同期した状態で、吊
持ロッド４を上昇させる。When the stud bolt 3 is to be removed, the fastening state of the upper lid with the nut and the stud bolt 3 is released in advance, and the unit base 1 is lowered to lift the suspension rod 4 in the bolt suspension portion 2. And the wrench portion 6 of the bolt loosening portion 5 are aligned with the upper position of the stud bolt 3. Then, the operation of the suspension rod rotating mechanism 8 causes the tip 4a of the suspension rod 4 to be screwed into the internal thread portion 3a of the head of the stud bolt 3. Then, the suspension rod 4 is lifted to urge the stud bolt 3 upward to support the load of the stud bolt 3, and the bolt loosening portion 5 is actuated to move the stud bolt 3 by the wrench portion 6. The suspension rod 4 is lifted in a state of being rotated and loosened and in synchronization with the rising speed when the stud bolt 3 is loosened.
【０００５】一方、スタッドボルト３をフランジのねじ
部に螺合させる取り付けは、スタッドボルト３の取り外
し作業のほぼ逆順に行われ、この場合にあっても、ボル
ト吊持部２によってスタッドボルト３の荷重の支持を行
いながら、ボルト弛緩部５を作動させ、スタッドボルト
３を回転させて螺合させる。その後、ナットをスタッド
ボルト３に螺合して、上蓋と容器胴部とを締結する作業
等が実施されるものである。On the other hand, the attachment of the stud bolt 3 to the threaded portion of the flange is carried out in almost the reverse order of the work for removing the stud bolt 3. Even in this case, the bolt suspension portion 2 is used to attach the stud bolt 3 to the stud bolt 3. While supporting the load, the bolt loosening portion 5 is operated, and the stud bolt 3 is rotated and screwed. After that, a nut is screwed into the stud bolt 3 to fasten the upper lid and the container body, and the like.
【０００６】これにより、スタッドボルト３を螺合状態
で回転させる場合に、スタッドボルト３の荷重がボルト
吊持部２によって吊り上げ支持されており、大重量のス
タッドボルト等における作業性を向上させることができ
るとともに、スタッドボルト３及びナットの着脱作業時
における省力化、工期の短縮、作業員の被爆低減を達成
することができる。As a result, when the stud bolt 3 is rotated in a screwed state, the load of the stud bolt 3 is hoisted and supported by the bolt suspending portion 2, and the workability of a heavy stud bolt or the like is improved. In addition, it is possible to achieve labor saving, shortening of the construction period, and reduction of exposure of workers to the work of attaching and detaching the stud bolt 3 and the nut.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、前述し
た従来技術のスタッドボルトの着脱装置においては、ス
タッドボルト３を懸吊する吊持ロッド４をスタッドボル
ト３の頭部に螺合させるために、吊持ロッド４を回転さ
せる吊持ロッド回転機構８が必要となるため、着脱装置
全体が大型化し、さらには複雑な機構を有する装置とな
っていた。However, in the above-mentioned prior art stud bolt attaching / detaching device, in order to screw the suspension rod 4 for suspending the stud bolt 3 onto the head of the stud bolt 3, the suspension rod 4 is suspended. Since the suspension rod rotating mechanism 8 for rotating the holding rod 4 is required, the entire attachment / detachment device is increased in size, and the device has a complicated mechanism.
【０００８】また、全てのスタッドボルト３…に対し
て、吊持ロッド４の先端のねじ込み作動又は取り外し作
動が行われるので、吊持ロッド４の脱着動作に多くの時
間がかかってしまうという問題があった。Further, since the tip end of the suspension rod 4 is screwed into or removed from all of the stud bolts 3 ..., the detaching operation of the suspension rod 4 takes a lot of time. there were.
【０００９】本発明は、上記事情に鑑みてなされたもの
で、スタッドボルト着脱装置のコンパクト化及び簡素化
を図り、ボルト吊持部とスタッドボルトの頭部との締結
操作が短時間で行われるスタッドボルトの着脱装置を提
供することを目的としている。The present invention has been made in view of the above circumstances. The stud bolt attaching / detaching device is made compact and simple, and the fastening operation between the bolt suspension portion and the head of the stud bolt is performed in a short time. It is an object of the present invention to provide a device for attaching and detaching a stud bolt.
【００１０】[0010]
【課題を解決するための手段】本発明のスタッドボルト
の着脱装置は、スタッドボルトの荷重を支持するボルト
吊持部と、スタッドボルトの荷重支持時にスタッドボル
トを回転させるボルト弛緩部とを有するスタッドボルト
の着脱装置であって、スタッドボルトの頭部のねじ穴に
螺合され、上端部周面に嵌合凹部を有するオス型締結部
材と、ボルト吊持部の下端に上下動可能に支持される筒
状部材と、筒状部材の内部にボルト吊持部とオス型締結
部材との着脱を行う着脱機構と、筒状部材と着脱機構と
の間に介在状態に配置され、オス型締結部材の嵌合凹部
と嵌合される嵌合部材とを具備することを特徴とするも
のである。DISCLOSURE OF THE INVENTION A stud bolt attaching / detaching device according to the present invention has a stud suspending portion for supporting the load of the stud bolt and a bolt loosening portion for rotating the stud bolt when the load of the stud bolt is supported. A bolt attaching / detaching device, which is screwed into a screw hole of a head of a stud bolt and has a male fastening member having a fitting concave portion on a peripheral surface of an upper end portion, and is vertically movably supported by a lower end of a bolt suspending portion. A tubular member, a detachable mechanism for attaching and detaching the bolt suspension portion and the male fastening member to the inside of the tubular member, and an interposing state between the tubular member and the detachable mechanism. And a fitting member fitted with the fitting concave portion.
【００１１】[0011]
【作用】本発明のスタッドボルト着脱装置によれば、予
め、スタッドボルトの頭部に、オス型締結部材を固定し
ておく。According to the stud bolt attaching / detaching device of the present invention, the male fastening member is fixed to the head of the stud bolt in advance.
【００１２】そして、ボルト吊持部をスタッドボルトの
軸線と一致させて下降させることにより、ボルト吊持部
の下端の筒状部材内部に、オス型締結部材の上端部が挿
入されていく。そして、筒状部材と着脱機構との間に介
在されている嵌合部材が、着脱機構の作動によりオス型
締結部材の嵌合凹部と筒状部材の内壁間で嵌合するの
で、ボルト吊持部とスタッドボルトとがワンタッチで締
結される。Then, by lowering the bolt suspending portion in alignment with the axis of the stud bolt, the upper end portion of the male fastening member is inserted into the tubular member at the lower end of the bolt suspending portion. Since the fitting member interposed between the tubular member and the attaching / detaching mechanism is fitted between the fitting concave portion of the male fastening member and the inner wall of the tubular member by the operation of the attaching / detaching mechanism, the bolt hanging The part and the stud bolt are fastened with one touch.
【００１３】また、ボルト吊持部とスタッドボルトとを
離脱させるには、脱着機構の作動により筒状部材を上方
へ移動させて、オス型締結部材の嵌合凹部と筒状部材の
内壁間における嵌合部材の嵌合を解除させることによ
り、オス型締結部材とボルト吊持部の下端とが即座に切
り離されてボルト吊持部とスタッドボルトとが離脱す
る。Further, in order to separate the bolt suspension portion and the stud bolt, the tubular member is moved upward by the operation of the attachment / detachment mechanism so as to move between the fitting concave portion of the male fastening member and the inner wall of the tubular member. By releasing the fitting of the fitting member, the male fastening member and the lower end of the bolt suspending portion are immediately separated, and the bolt suspending portion and the stud bolt are separated.
【００１４】[0014]
【実施例】本発明のスタッドボルトの着脱装置の一実施
例について、図１ないし図８を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a stud bolt attaching / detaching device of the present invention will be described with reference to FIGS.
【００１５】なお、図９に示した部材と同一構成部材
は、同一符号を付してその説明を省略する。すなわち、
ボルト吊持部２は、図９に示したボルト吊持部と同一構
成である。そして、ボルト吊持部２の最下端には、図２
に示すように、締結ロッド１０が、スタッドボルト３の
上方に、軸線を一致させて配設された構造とされてい
る。The same components as those shown in FIG. 9 are designated by the same reference numerals and their description will be omitted. That is,
The bolt suspension part 2 has the same structure as the bolt suspension part shown in FIG. Then, at the lowermost end of the bolt suspending portion 2, as shown in FIG.
As shown in FIG. 5, the fastening rod 10 is arranged above the stud bolts 3 with their axes aligned.
【００１６】本実施例の特徴は、ボルト吊持部２とスタ
ッドボルト３の締結機構が、スタッドボルト３の頭部に
配設されたオス型締結部材１１と、ボルト吊持部２の下
端の締結ロッド１０に配設されたメス型締結部材１２と
で構成されていることである。そして、メス型締結部材
１２は、外筒部材（筒状部材）１３と、この筒状部材１
３の内部に配設された嵌合ボール（嵌合部材）１４と、
嵌合ボール１４の嵌合及び解除を行う着脱機構１５とで
概略構成されている。The feature of the present embodiment is that the fastening mechanism for the bolt suspending portion 2 and the stud bolt 3 includes a male fastening member 11 arranged at the head of the stud bolt 3 and a lower end of the bolt suspending portion 2. It is composed of a female fastening member 12 arranged on the fastening rod 10. The female fastening member 12 includes an outer tubular member (cylindrical member) 13 and the tubular member 1
3, a fitting ball (fitting member) 14 disposed inside 3,
It is roughly configured with an attachment / detachment mechanism 15 for fitting and releasing the fitting ball 14.
【００１７】オス型締結部材１１は、図４に示すよう
に、スタッドボルト３の頭部中心に形成されたねじ穴３
ａに螺合する第１ボルト１６と、第１ボルト１６の上部
に載置された第１ボルト１６より縮径されている第２ボ
ルト１７と、これら第１及び第２ボルト１６、１７に螺
合してそれらを一体化するソケット１８と、第２ボルト
１７の先端に螺合している略筒形状のオス部材１９とで
構成されている。そして、前記オス部材１９は、頭部周
縁１９ａが曲面形状とされているとともに、上端部の周
面には、嵌合ボール１４が内部に入り込む嵌合凹部２０
が形成されている。また、下端周面には突起部２１が形
成されている。As shown in FIG. 4, the male fastening member 11 has a screw hole 3 formed at the center of the head of the stud bolt 3.
The first bolt 16 that is screwed into the a, the second bolt 17 that is reduced in diameter from the first bolt 16 that is placed on top of the first bolt 16, and the first and second bolts 16 and 17 that are screwed together. It is composed of a socket 18 that is integrated with each other and a male member 19 having a substantially cylindrical shape that is screwed onto the tip of the second bolt 17. In addition, the male member 19 has a curved head portion peripheral edge 19a, and a fitting concave portion 20 into which the fitting ball 14 enters inside on the peripheral surface of the upper end portion.
Are formed. Further, a projection 21 is formed on the peripheral surface of the lower end.
【００１８】また、メス型締結部材１１は、前述した締
結ロッド１０の最下端に、締結ロッド１０の軸方向に移
動自在に配設されている。なお、締結ロッド１０は、図
２に示すように、装置架台２２に固定された太径ロッド
１０ａと、太径ロッド１０ａ内部に連結された細径ロッ
ド１０ｂと、メス型締結部材１２と連結し、かつ先端部
に円柱体２５が形成されたメス型連結ロッド１０ｃとで
構成されている。そして、太径及び細径ロッド１０ａ、
１０ｂは、軸線に沿って空気導入孔２３が穿設された中
空形状とされているとともに、太径ロッド１０ａの上部
に、軸線と直交する方向に空気取入孔２４が穿設されて
いる。また、メス型連結ロッド１０ｃは、図３にも示す
ように、円柱体２５の上部まで軸線に沿って空気導入孔
２３が穿設された後、空気導入孔２３の最下部から軸と
直交する方向に空気噴出孔２６が穿設された形状とされ
ている。そして、圧縮空気が、空気取入孔２４から導入
され、空気導入孔２３を通過して空気噴出孔２６から噴
出するようになっている。The female fastening member 11 is disposed at the lowermost end of the fastening rod 10 described above so as to be movable in the axial direction of the fastening rod 10. As shown in FIG. 2, the fastening rod 10 is connected to the large-diameter rod 10 a fixed to the device mount 22, the small-diameter rod 10 b connected to the inside of the large-diameter rod 10 a, and the female fastening member 12. And a female connecting rod 10c having a columnar body 25 formed at its tip. And the large diameter and small diameter rods 10a,
10b has a hollow shape in which an air introduction hole 23 is formed along the axis, and an air intake hole 24 is formed in the upper portion of the large-diameter rod 10a in a direction orthogonal to the axis. Further, in the female connecting rod 10c, as shown in FIG. 3, after the air introducing hole 23 is bored along the axis to the upper part of the cylindrical body 25, the lowermost part of the air introducing hole 23 is orthogonal to the axis. The air ejection hole 26 is formed in the direction. Then, the compressed air is introduced from the air intake hole 24, passes through the air introduction hole 23, and is ejected from the air ejection hole 26.
【００１９】そして、締結ロッド１０と連結するメス型
締結部材１２の外筒部材１３は、図３に示すように、締
結ロッド１０の円柱体２５が内部に挿入されているとと
もに、一端側に蓋部材２７が気密構造とされて配設され
て上下動可能に支持されている。ここで、外筒部材１３
は、開口内部側Ｐの内径Ｌ１が開口先端部Ｑの内径Ｌ２
より、縮径された形状とされている。As shown in FIG. 3, the outer cylindrical member 13 of the female fastening member 12 connected to the fastening rod 10 has the columnar body 25 of the fastening rod 10 inserted therein and a lid on one end side. The member 27 is arranged in an airtight structure and is supported so as to be vertically movable. Here, the outer cylinder member 13
Is the inner diameter L1 on the inner side P of the opening is the inner diameter L2 of the tip Q of the opening.
Therefore, the diameter is reduced.
【００２０】また、嵌合ボール１４は、外筒部材１３内
部の内壁面に接して配設され、かつ以下に説明する着脱
機構１５により移動自在に保持されている。すなわち、
着脱機構１５は、外筒部材１３内部に位置している円柱
体２５と連結されて外筒部材１３の内周面上を摺動自在
に配設された第１スリーブ２８と、第１スリーブ２８の
開口側２８ａに第１スリーブ２８の内周面上を摺動自在
に配設された第２スリーブ２９と、圧縮空気を噴出させ
る空気噴出孔２６とで構成されている。そして、第１ス
リーブ２８の開口側２８ａには、周方向に複数ボール保
持孔３０が形成されており、嵌合ボール１４は、ボール
保持孔３０内部に配設されながら、外筒部材１３の内壁
と第２スリーブ２９とに径方向の移動が拘束された状態
で保持されている。The fitting ball 14 is disposed in contact with the inner wall surface inside the outer cylindrical member 13, and is movably held by a mounting / demounting mechanism 15 described below. That is,
The attachment / detachment mechanism 15 is connected to a cylindrical body 25 positioned inside the outer tubular member 13, and is provided with a first sleeve 28 slidably disposed on the inner peripheral surface of the outer tubular member 13, and a first sleeve 28. A second sleeve 29 slidably arranged on the inner peripheral surface of the first sleeve 28 on the opening side 28a of the first sleeve 28 and an air jet hole 26 for jetting compressed air. A plurality of ball holding holes 30 are formed in the circumferential direction on the opening side 28a of the first sleeve 28, and the fitting balls 14 are arranged inside the ball holding holes 30 while the inner wall of the outer tubular member 13 is formed. And the second sleeve 29 are held in a state in which radial movement is restricted.
【００２１】なお、第１スリーブ２８の内径及び第２ス
リーブ２９の外径は、前記オス部材１９の外径と略同一
寸法に設定されている。また、第１スリーブ２８の開口
側２８ａの外径は、オス部材１９の突起部２１より拡径
されている。さらに、第２スリーブ２９と円柱体２５と
で画成された空間部には、第２スリーブ２９を開口側２
８ａへ付勢するスプリング３１が配設されている。ま
た、第１スリーブ２８の外周と外筒部材１３の内壁とで
画成される空隙部にも、外筒部材１３を上方向へ付勢す
るスプリング３２が配設されている。The inner diameter of the first sleeve 28 and the outer diameter of the second sleeve 29 are set to be substantially the same as the outer diameter of the male member 19. The outer diameter of the opening side 28 a of the first sleeve 28 is larger than that of the protrusion 21 of the male member 19. Further, the second sleeve 29 is provided on the opening side 2 in the space defined by the second sleeve 29 and the columnar body 25.
A spring 31 that biases 8a is provided. Further, a spring 32 for urging the outer cylinder member 13 in the upward direction is also arranged in a space defined by the outer circumference of the first sleeve 28 and the inner wall of the outer cylinder member 13.
【００２２】上記構成からなるオス型締結部材１１とメ
ス型締結部材１２とを嵌合（締結）させるには、昇降手
段により締結ロッド１０を下降させることにより、オス
型締結部材１１のオス部材１９が、メス型締結部材１２
の内部に進入していく。これにより、メス型締結部材１
２の第２スリーブ２９が、オス部材１９の頭部に押圧さ
れて上方に押し上げられていく。In order to fit (fasten) the male fastening member 11 and the female fastening member 12 having the above construction, the fastening rod 10 is lowered by the elevating means, and the male member 19 of the male fastening member 11 is moved. Is the female fastening member 12
Enter the inside of. Thereby, the female fastening member 1
The second second sleeve 29 is pressed by the head of the male member 19 and is pushed upward.
【００２３】ここで、嵌合ボール１４は、第２スリーブ
２９が上昇していき、かつオス部材１９の嵌合凹部２０
が同一水平位置に移動してくるので、径方向内方への移
動拘束が解除される。そして、第２スリーブ２９の上端
が円柱体２５と当接して第１スリーブ２８も上方に押し
上げられていくので、嵌合ボール１４は、外筒部材１３
の内壁に沿って上方に移動しながら、径方向内方に移動
していく。そして、外筒部材１３の開口内部側Ｐ（内径
がＬ１の位置）まで移動した嵌合ボール１４は、図５に
示すように、外筒部材１３の内壁と、オス部材１９の嵌
合凹部２０とに挟みこまれて移動が拘束され、オス型締
結部材１１とメス型締結部材１２とが嵌合される。この
際、外筒部材１３の内壁、蓋部材２７及び円柱体２５と
で画成される気密空間Ｓは、嵌合前に比べて小スペース
とされる。Here, in the fitting ball 14, the second sleeve 29 rises and the fitting recess 20 of the male member 19 is formed.
Move to the same horizontal position, so that the movement restriction inward in the radial direction is released. Then, the upper end of the second sleeve 29 comes into contact with the columnar body 25 and the first sleeve 28 is also pushed upward, so that the fitting ball 14 is retained in the outer cylinder member 13.
While moving upward along the inner wall of the, it moves radially inward. Then, as shown in FIG. 5, the fitting ball 14 that has moved to the opening inner side P (the position where the inner diameter is L1) of the outer cylinder member 13 has the inner wall of the outer cylinder member 13 and the fitting recess 20 of the male member 19, as shown in FIG. The movement is restrained by being sandwiched between and, and the male fastening member 11 and the female fastening member 12 are fitted together. At this time, the airtight space S defined by the inner wall of the outer tubular member 13, the lid member 27, and the columnar body 25 is smaller than that before fitting.
【００２４】一方、オス型締結部材１１とメス型締結部
材１２とを離脱させるには、前述した太径ロッド１０ａ
の空気取入孔２４から圧縮空気を送り込む。これによ
り、圧縮空気は、締結ロッド１０の空気導入孔２３を通
過して、空気噴出孔２６から気密空間Ｓ内部に流れ込ん
でいき、外筒部材１３の蓋部材２７に上方向への押圧力
を加えていく。このため、外筒部材１３は徐々に上方向
へ移動していき、それにより、外筒部材１３の開口内部
側Ｐに位置していた嵌合ボール１４は、内壁に沿って開
口先端部Ｑまで移動する。これにより、嵌合ボール１４
の嵌合状態は解除されて、オス型締結部材１１とメス型
締結部材１２とが離脱する。On the other hand, in order to separate the male type fastening member 11 and the female type fastening member 12, the large-diameter rod 10a described above is used.
Compressed air is sent in through the air intake hole 24 of. As a result, the compressed air passes through the air introduction hole 23 of the fastening rod 10, flows into the airtight space S from the air ejection hole 26, and applies upward pressure to the lid member 27 of the outer tubular member 13. To add. For this reason, the outer cylinder member 13 gradually moves upward, whereby the fitting ball 14 located on the inside P side of the opening of the outer cylinder member 13 extends along the inner wall to the opening tip Q. Moving. Thereby, the fitting ball 14
The fitting state of is released and the male fastening member 11 and the female fastening member 12 are separated.
【００２５】次に、上記構成のスタッドボルトの着脱装
置の操作例を、図６ないし図８を参照して説明する。予
め、フランジ３３に螺合したスタッドボルト３の頭部
に、オス型締結部材１１を固定しておく。Next, an operation example of the stud bolt attaching / detaching device having the above-mentioned structure will be described with reference to FIGS. In advance, the male fastening member 11 is fixed to the head of the stud bolt 3 screwed to the flange 33.
【００２６】まず、スタッドボルト３を取り外す操作
は、着脱装置をスタッドボルト３の軸線に沿って下降さ
せていく（図６参照）。これにより、ボルト吊持部２
（締結ロッド１０）の下端に配設されているメス型締結
部材１２が、オス型締結部材１１に向けて移動していく
とともに、ボルト弛緩部５のレンチ部６もスタッドボル
ト３の頭部に向けて移動していく。そして、メス型締結
部材１２内部にオス型締結部材１１のオス部材１９が進
入していき、上述したように、嵌合ボール１４が外筒部
材１３の内壁と、オス部材１９の嵌合凹部２０とに嵌合
し、オス型締結部材１１とメス型締結部材１２とがワン
タッチで嵌合されて、ボルト吊持部２とスタッドボルト
３とが締結される（図７参照）。First, in the operation of removing the stud bolt 3, the attaching / detaching device is lowered along the axis of the stud bolt 3 (see FIG. 6). As a result, the bolt suspension unit 2
The female fastening member 12 arranged at the lower end of the (fastening rod 10) moves toward the male fastening member 11, and the wrench portion 6 of the bolt loosening portion 5 also contacts the head portion of the stud bolt 3. Move towards. Then, the male member 19 of the male fastening member 11 enters the inside of the female fastening member 12, and as described above, the fitting ball 14 causes the inner wall of the outer tubular member 13 and the fitting recess 20 of the male member 19. , And the male fastening member 11 and the female fastening member 12 are fitted with one touch to fasten the bolt suspension portion 2 and the stud bolt 3 (see FIG. 7).
【００２７】そして、昇降手段７により締結ロッド１０
を上昇させ、スタッドボルト３を上方に付勢してスタッ
ドボルト３の荷重を支持し、ボルト弛緩部５を作動さ
せ、そのレンチ部６によってスタッドボルト３を回転さ
せて弛緩し、スタッドボルト３弛緩時の上昇速度に同期
した状態で、締結ロッド１０を上昇させる（図８参
照）。Then, the fastening rod 10 is moved by the elevating means 7.
Is lifted, the stud bolt 3 is urged upward to support the load of the stud bolt 3, the bolt loosening portion 5 is operated, and the stud bolt 3 is rotated and loosened by the wrench portion 6 to loosen the stud bolt 3. The fastening rod 10 is raised in a state of being synchronized with the ascending speed (see FIG. 8).
【００２８】また、スタッドボルト３と脱着装置とを離
脱させるには、太径ロッド１０ａの空気取入孔２４から
送り込まれた圧縮空気を、空気噴出孔２６から気密空間
Ｓに送る。これにより、外筒部材１３の蓋部材２７に上
方向への押圧力を加えて外筒部材１３を上方向へ移動さ
せ、嵌合ボール１４の嵌合状態を解除させることによ
り、オス型締結部材１１とボルト吊持部２の下端とが即
座に切り離されてスタッドボルト３と脱着装置が離脱す
る。Further, in order to separate the stud bolt 3 and the desorption device, the compressed air sent from the air intake hole 24 of the large diameter rod 10a is sent to the airtight space S from the air ejection hole 26. As a result, an upward pressing force is applied to the lid member 27 of the outer tubular member 13 to move the outer tubular member 13 upward, and the fitting state of the fitting ball 14 is released, whereby the male fastening member is released. 11 and the lower end of the bolt suspension portion 2 are immediately separated, and the stud bolt 3 and the attachment / detachment device are detached.
【００２９】一方、スタッドボルト３をフランジ３３の
ねじ部に螺合させる取り付けは、スタッドボルト３の取
り外し作業のほぼ逆順に行われ、この場合にあっても、
ボルト吊持部２によってスタッドボルト３の荷重の支持
を行いながら、ボルト弛緩部５を作動させ、スタッドボ
ルト３を回転して螺合させる。On the other hand, the attachment of the stud bolt 3 to the threaded portion of the flange 33 is carried out in almost the reverse order of the work of removing the stud bolt 3, and even in this case,
While supporting the load of the stud bolt 3 by the bolt suspension portion 2, the bolt loosening portion 5 is operated and the stud bolt 3 is rotated and screwed.
【００３０】以上、述べたことから容易に理解できるよ
うに、本実施例のスタッドボルトの着脱装置にあって
は、スタッドボルト３の頭部に固定されたオス型締結部
材１１に向けて締結ロッド１０を下降させていくことに
より、締結ロッド１０の下端のメス型締結部材１２の内
部に、オス型締結部材１１のオス部材１９が進入してい
き、それによりメス型締結部材１２内部の嵌合ボール１
４が、着脱機構１５により外筒部材１３の内壁とオス部
材１９の嵌合凹部２０間に嵌合されるので、ワンタッチ
でボルト吊持部２とオス型締結部材１１とを締結するこ
とができ、かつ圧縮空気が気密空間Ｓに送られて外筒部
材１３の上方向への移動により嵌合ボール１４の嵌合状
態が解除されることにより、ボルト吊持部２とオス型締
結部材１１とを即座に離脱することができるので、ボル
ト吊持部２とスタッドボルト３の着脱操作が短時間で行
われ、作業性が著しく改善されることになる。As can be easily understood from the above description, in the stud bolt attaching / detaching device of this embodiment, the fastening rod is directed toward the male fastening member 11 fixed to the head of the stud bolt 3. By moving 10 downward, the male member 19 of the male fastening member 11 enters the inside of the female fastening member 12 at the lower end of the fastening rod 10, thereby fitting the inside of the female fastening member 12. Ball 1
4 is fitted between the inner wall of the outer tubular member 13 and the fitting recess 20 of the male member 19 by the attachment / detachment mechanism 15, so that the bolt suspension portion 2 and the male fastening member 11 can be fastened with one touch. In addition, the compressed air is sent to the airtight space S, and the fitting state of the fitting ball 14 is released by the upward movement of the outer tubular member 13, so that the bolt suspending portion 2 and the male fastening member 11 are connected to each other. Since the bolt can be immediately removed, the bolt suspending portion 2 and the stud bolt 3 can be attached and detached in a short time, and the workability is remarkably improved.
【００３１】また、従来装置（図８に示した特開昭６３
ー１７２９９５号公報の装置）と比較して、スタッドボ
ルト３に吊持ロッド４を回転させるための吊持ロッド回
転機構８が不要となり、スタッドボルト着脱装置のコン
パクト化、さらには簡素化を図ることができる。In addition, a conventional device (see Japanese Laid-Open Patent Publication No. 63-63 shown in FIG.
No. 172995), the suspension rod rotating mechanism 8 for rotating the suspension rod 4 on the stud bolt 3 is not required, and the stud bolt attaching / detaching device can be made compact and further simplified. You can
【００３２】なお、前記着脱機構１５は、本実施例で示
した構造に限ることはなく、本実施例と同様の作用効果
が得られるならば、他の構造でも良い。また、嵌合部材
も、本実施例で使用した球状の嵌合ボール１４に限るこ
とはない。The attachment / detachment mechanism 15 is not limited to the structure shown in this embodiment, and may have another structure as long as the same effect as that of this embodiment can be obtained. Further, the fitting member is not limited to the spherical fitting ball 14 used in this embodiment.
【００３３】[0033]
【発明の効果】以上説明したように、本発明のスタッド
ボルト着脱装置は、スタッドボルトの頭部のねじ穴に螺
合され、上端部周面に嵌合凹部を有するオス型締結部材
と、ボルト吊持部の下端に上下動可能に支持される筒状
部材と、筒状部材の内部にボルト吊持部とオス型締結部
材との着脱を行う着脱機構と、筒状部材と着脱機構との
間に介在状態に配置され、オス型締結部材の嵌合凹部と
嵌合される嵌合部材とを具備した構成とされており、ス
タッドボルトの頭部のオス型締結部材に向けてボルト吊
持部の下端を下降させて筒状部材の内部にオス型締結部
材を進入させることにより、着脱機構の作動により筒状
部材の内壁とオス型締結部材の嵌合凹部間で嵌合部材が
嵌合してボルト吊持部とオス型締結部材とがワンタッチ
で締結され、脱着機構により嵌合部材の嵌合状態を解除
させてボルト吊持部とオス型締結部材とを即座に離脱す
ることができるため、ボルト吊持部とスタッドボルトの
着脱操作を短時間で行い、作業性を著しく改善すること
ができる。As described above, the stud bolt attaching / detaching device of the present invention is a male fastening member screwed into the screw hole of the head of the stud bolt and having a fitting recess on the peripheral surface of the upper end, and a bolt. A tubular member movably supported on the lower end of the hanging portion; a detaching mechanism for attaching and detaching the bolt suspending portion and the male fastening member to the inside of the tubular member; and the tubular member and the detaching mechanism. It is arranged so as to be interposed between the male type fastening member and the fitting concave portion of the male type fastening member, and is configured to have a bolt suspended toward the male type fastening member of the head of the stud bolt. By lowering the lower end of the portion to allow the male fastening member to enter the inside of the tubular member, the fitting member is fitted between the inner wall of the tubular member and the fitting recess of the male fastening member by the operation of the attachment / detachment mechanism. Then, the bolt suspension part and the male type fastening member are fastened with one touch and detached. Since the fitting state of the fitting member can be released by the structure and the bolt suspending part and the male fastening member can be immediately separated, the bolt suspending part and the stud bolt can be attached and detached in a short time. The sex can be significantly improved.
【００３４】また、従来装置と比較して、スタッドボル
トの着脱作業時における省力化、工期の短縮、作業員の
被爆低減を達成することができることは勿論のこと、ス
タッドボルト着脱装置のコンパクト化、さらには簡素化
を図ることができる。Further, in comparison with the conventional device, it is possible to achieve labor saving, shortening of construction period, and reduction of exposure of workers to the stud bolt attaching / detaching device, downsizing of the stud bolt attaching / detaching device, Furthermore, simplification can be achieved.
【図１】本発明のスタッドボルトの着脱装置の外観を示
す側面図である。FIG. 1 is a side view showing an external appearance of a stud bolt attaching / detaching device of the present invention.
【図２】本発明の吊持ボルトとスタッドボルトの締結機
構を示す要部断面図である。FIG. 2 is a sectional view of an essential part showing a fastening mechanism of a suspension bolt and a stud bolt according to the present invention.
【図３】本発明のボルト吊持部の下端に配設された締結
部材の一方側を示す断面図である。FIG. 3 is a cross-sectional view showing one side of a fastening member arranged at the lower end of the bolt suspension of the present invention.
【図４】本発明のスタッドボルトの頭部に螺合された締
結部材の他方側を示す断面図である。FIG. 4 is a cross-sectional view showing the other side of the fastening member screwed onto the head of the stud bolt of the present invention.
【図５】本発明のボルト吊持部側に配設された締結部材
とスタッドボルトの頭部に固定された締結部材とが嵌合
された状態を示す要部断面図であるFIG. 5 is a cross-sectional view of essential parts showing a state in which a fastening member disposed on the side of a bolt suspension portion of the present invention and a fastening member fixed to the head of a stud bolt are fitted together.
【図６】本発明のスタッドボルトの着脱装置がスタッド
ボルト側に下降してくる状態を示す要部断面図である。FIG. 6 is a sectional view of an essential part showing a state in which the stud bolt attaching / detaching device of the present invention descends toward the stud bolt side.
【図７】本発明のスタッドボルトの着脱装置がスタッド
ボルトを吊持している状態を示す要部断面図である。FIG. 7 is a cross-sectional view of essential parts showing a state where the stud bolt attaching / detaching device of the present invention suspends a stud bolt.
【図８】ボルト弛緩部によりスタッドボルトを弛緩して
いる状態を示す要部断面図である。FIG. 8 is a sectional view of relevant parts showing a state in which a stud bolt is loosened by a bolt loosening portion.
【図９】従来のスタッドボルトの着脱装置を示す要部断
面図である。FIG. 9 is a cross-sectional view of essential parts showing a conventional stud bolt attaching / detaching device.
２ ボルト吊持部 ３ スタッドボルト ５ ボルト弛緩部 ６ レンチ部 ７ 昇降手段 １０ 締結ロッド １１ オス型締結部材 １２ メス型締結部材 １３ 筒状部材（外筒部材） １４ 嵌合部材（嵌合ボール） １５ 着脱機構 １９ オス部材 ２０ 嵌合凹部 ２３ 空気導入孔 ２４ 空気取入孔 ２５ 着脱機構（円柱体） ２６ 着脱機構（空気噴出孔） ２７ 筒状部材（蓋部材） ２８ 着脱機構（第１スリーブ） ２９ 着脱機構（第２スリーブ） ３０ 着脱機構（ボール保持孔） Ｓ 気密空間 Ｐ 筒状部材の開口内部側の内壁 Ｑ 筒状部材の開口先端側の内壁 2 Bolt Suspending Part 3 Stud Bolt 5 Bolt Relaxing Part 6 Wrench Part 7 Lifting Means 10 Fastening Rod 11 Male Fastening Member 12 Female Fastening Member 13 Cylindrical Member (Outer Cylindrical Member) 14 Fitting Member (Fit Ball) 15 Attachment / detachment mechanism 19 Male member 20 Fitting recess 23 Air introduction hole 24 Air intake hole 25 Attachment / detachment mechanism (cylindrical body) 26 Attachment / detachment mechanism (air ejection hole) 27 Cylindrical member (lid member) 28 Attachment / detachment mechanism (first sleeve) 29 Attachment / Detachment Mechanism (Second Sleeve) 30 Attachment / Detachment Mechanism (Ball Holding Hole) S Airtight Space P Inner Wall Inside Opening of Cylindrical Member Q Inner Wall of Opening Tip of Cylindrical Member
Claims (1)
吊持部と、スタッドボルトの荷重支持時にスタッドボル
トを回転させるボルト弛緩部とを有するスタッドボルト
の着脱装置であって、 スタッドボルトの頭部のねじ穴に螺合され、上端部周面
に嵌合凹部を有するオス型締結部材と、 ボルト吊持部の下端に上下動可能に支持される筒状部材
と、 筒状部材の内部にボルト吊持部とオス型締結部材との着
脱を行う着脱機構と、 筒状部材と着脱機構との間に介在状態に配置され、オス
型締結部材の嵌合凹部と嵌合される嵌合部材とを具備す
ることを特徴とするスタッドボルトの着脱装置。1. A stud bolt attaching / detaching device having a bolt suspending portion for supporting a load of a stud bolt and a bolt loosening portion for rotating the stud bolt at the time of supporting the load of the stud bolt, comprising a head of the stud bolt. A male fastening member that is screwed into the screw hole and has a fitting recess on the peripheral surface of the upper end, a tubular member that is vertically movable at the lower end of the bolt suspending unit, and a bolt that is suspended inside the tubular member. An attaching / detaching mechanism for attaching / detaching the holding portion and the male fastening member, and a fitting member arranged in an intervening state between the tubular member and the attaching / detaching mechanism and fitted into the fitting recess of the male fastening member. A device for attaching and detaching a stud bolt, which is characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4017912A JPH0618692A (en) | 1992-02-03 | 1992-02-03 | Stud bolt loading/unloading apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4017912A JPH0618692A (en) | 1992-02-03 | 1992-02-03 | Stud bolt loading/unloading apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0618692A true JPH0618692A (en) | 1994-01-28 |
Family
ID=11956967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4017912A Withdrawn JPH0618692A (en) | 1992-02-03 | 1992-02-03 | Stud bolt loading/unloading apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618692A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100855397B1 (en) * | 2007-07-04 | 2008-08-29 | 두산엔진주식회사 | Apparatus for fastening stud having lifting unit |
| KR100855414B1 (en) * | 2007-07-04 | 2008-08-29 | 두산엔진주식회사 | Apparatus for fastening stud to various cylinder engine frame |
| KR100855415B1 (en) * | 2007-07-04 | 2008-08-29 | 두산엔진주식회사 | Apparatus for fastening stud having centering unit |
| KR100876749B1 (en) * | 2007-07-04 | 2009-01-07 | 두산엔진주식회사 | Apparatus for fastening stud |
| WO2013114548A1 (en) * | 2012-01-30 | 2013-08-08 | 三菱重工業株式会社 | Wjp execution method for reactor vessel lid, and jig |
| KR101666405B1 (en) * | 2016-01-21 | 2016-10-17 | 세 교 정 | Stud Bolt Mount Apparatus |
-
1992
- 1992-02-03 JP JP4017912A patent/JPH0618692A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100855397B1 (en) * | 2007-07-04 | 2008-08-29 | 두산엔진주식회사 | Apparatus for fastening stud having lifting unit |
| KR100855414B1 (en) * | 2007-07-04 | 2008-08-29 | 두산엔진주식회사 | Apparatus for fastening stud to various cylinder engine frame |
| KR100855415B1 (en) * | 2007-07-04 | 2008-08-29 | 두산엔진주식회사 | Apparatus for fastening stud having centering unit |
| KR100876749B1 (en) * | 2007-07-04 | 2009-01-07 | 두산엔진주식회사 | Apparatus for fastening stud |
| WO2013114548A1 (en) * | 2012-01-30 | 2013-08-08 | 三菱重工業株式会社 | Wjp execution method for reactor vessel lid, and jig |
| JPWO2013114548A1 (en) * | 2012-01-30 | 2015-05-11 | 三菱重工業株式会社 | Reactor vessel lid WJP construction method and jig |
| US9789585B2 (en) | 2012-01-30 | 2017-10-17 | Mitsubishi Heavy Industries, Ltd. | WJP execution method for reactor vessel lid and jigs |
| KR101666405B1 (en) * | 2016-01-21 | 2016-10-17 | 세 교 정 | Stud Bolt Mount Apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990518 |