JPH02173411A - Adjusting method and jig for sling bolt - Google Patents

Adjusting method and jig for sling bolt

Info

Publication number
JPH02173411A
JPH02173411A JP32831688A JP32831688A JPH02173411A JP H02173411 A JPH02173411 A JP H02173411A JP 32831688 A JP32831688 A JP 32831688A JP 32831688 A JP32831688 A JP 32831688A JP H02173411 A JPH02173411 A JP H02173411A
Authority
JP
Japan
Prior art keywords
bolt
sling
adjusting
sling bolt
nut
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.)
Granted
Application number
JP32831688A
Other languages
Japanese (ja)
Other versions
JPH0643845B2 (en
Inventor
Hidetoshi Koyama
小山 秀利
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.)
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Technologies 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 Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Technologies Ltd
Priority to JP63328316A priority Critical patent/JPH0643845B2/en
Publication of JPH02173411A publication Critical patent/JPH02173411A/en
Publication of JPH0643845B2 publication Critical patent/JPH0643845B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To attempt safe and simple adjusting work and reduced work time, in adjusting a sling bolt of heavy equipment such as a boiler installed by suspension in the air, by fixing an adjusting jig having a split nut which is engaged with the screw part on the upper end part of this bolt on the sling bolt and then by pushing up the adjusting jig by a jack so as to rotate the adjusting nut. CONSTITUTION:Two plates 10a and 10b to each of which a half nut 12 is welded and having half female screws engaged with a male screw part 13b which is provided at the upper end part 13a of a sling bolt 13 are fixed together by a bolt 17 by having the female screws of the half nuts 12 engaged with the male screw part 13b of the sling bolt 13. A jack 15 is installed between the lower surface 14a of the second notch 14 of a plate 10 and a boiler steel frame 20, and the sling bolt 13 is raised by jacking up. Therefore, as no load is given to an adjusting screw 23, adjustment work can be executed safely and simply in a short time.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、空間に吊り下げられて設置されるボイラ等の
大重量機器のスリングボルトの調整方法及び調整治具に
関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and an adjustment jig for adjusting a sling bolt of a heavy equipment such as a boiler that is suspended and installed in a space.

〔従来の技術〕[Conventional technology]

第3図はボイラ鉄骨1からボイラヘッダ2を吊り下げた
状態を示す図で、ボイラ鉄骨1の上端部にはブロックワ
ッシャ3が配置されており、該ブロックワッシャ3の中
央部に設けられた穴3aをスリングホルト4が貫通した
構造となっている。
FIG. 3 is a diagram showing the state in which the boiler header 2 is suspended from the boiler steel frame 1. A block washer 3 is arranged at the upper end of the boiler steel frame 1, and a hole provided in the center of the block washer 3 is shown. It has a structure in which a sling holder 4 passes through 3a.

該スリングボルト4に螺合する調整ナツト5がブロック
ワッシャ3の上面に配置されており、該調整ナツト5は
スリングボルト4の下端部に結合されたボイラヘッダ2
を支持すると共に、吊り下げ物体の上下方向のレベルを
調整する役目を果たしている。また、前記スリングボル
ト4の上端部にはナツト外れ止め6が設けられており、
容易に取り外せない構造となっている。
An adjustment nut 5 screwed onto the sling bolt 4 is arranged on the upper surface of the block washer 3, and the adjustment nut 5 is connected to the boiler header 2 connected to the lower end of the sling bolt 4.
In addition to supporting the object, it also plays the role of adjusting the vertical level of the suspended object. Further, a nut retainer 6 is provided at the upper end of the sling bolt 4,
It has a structure that cannot be easily removed.

一般に大型火力発電所においては、数千トンのボイラを
空間に吊り下げて保持するために直径が100+n+n
もあるスリングボルト4が数百本も使用されており、ボ
イラ据付から運転中まで含めその間に数回レベル調整を
する。そして、その度毎にスリングボルト4の調整ナツ
ト5の締付は調整が行われている。
Generally, in large thermal power plants, the diameter is 100+n+n in order to suspend and hold several thousand tons of boilers in the space.
Hundreds of sling bolts 4 are used, and the level is adjusted several times from boiler installation to operation. The tightening of the adjustment nut 5 of the sling bolt 4 is adjusted each time.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、従来にあっては前記スリングボルト4の
調整ナツト5を締付調整する場合、第2図に示すように
、調整ナツト5に打撃スパナ7をかけて1人がロープ8
で支え、他の人が大ハンマ9を打ち振って調整ナツト5
を少しずつ回転させて調整していた。したがって、高所
作業であることと相俟って調整に時間がかかること、打
ち振った大ハンマの打ち損いによる危険があること、疲
れること等の欠点があった。
However, conventionally, when tightening and adjusting the adjusting nut 5 of the sling bolt 4, one person applies a percussion spanner 7 to the adjusting nut 5, as shown in FIG.
while the other person swings the sledgehammer 9 and adjusts the adjustment nut 5.
I adjusted it by rotating it little by little. Therefore, in addition to the work being done at heights, there are disadvantages such as the time required for adjustment, the risk of mis-striking the sledgehammer, and fatigue.

本発明の目的は上述した欠点に鑑みなされたもので、ス
リングボルトの調整が容易で疲労が少なくすみ、しかも
安全性の高いスリングボルトの調整方法及び調整治具を
提供するにある。
SUMMARY OF THE INVENTION An object of the present invention has been made in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a sling bolt adjustment method and an adjustment jig that allow easy adjustment of sling bolts, reduce fatigue, and are highly safe.

〔問題点を解決するための手段〕[Means for solving problems]

第1の発明のスリングボルトの調整方法は、物体を懸架
するスリングボルトを上下方向に調整する方法において
、スリングボルトの上端部のねじ部に螺合する複数個の
割りナンドを有する調整治具を、前記スリングボルトに
固定した後、該調整治具をジヤツキで押し上げてスリン
グボルトを上方に引き上げ、この後調整ナツトを回転す
るようにしたものである。
A method for adjusting a sling bolt according to a first aspect of the invention is a method for vertically adjusting a sling bolt for suspending an object. After fixing to the sling bolt, the adjusting jig is pushed up with a jack to pull the sling bolt upward, and then the adjusting nut is rotated.

また、第2の発明のスリングボルトの調整治具は、第1
の発明の方法に使用される治具であって、スリングボル
トの上端部が入る深さ寸法を有する第1の切欠部と該第
1の切欠部の両側に設けられかつジヤツキ上端部が当て
がわれる第2の切欠部を有する複数のプレートと、該プ
レートの第1の切欠部内に固定されかつ前記スリンク゛
ボルトの上端ねじ部に螺合可能な割りナツトと、前記複
数のプレートを面合わせした状態で固定する固定手段と
から成る構成としたものである。
Moreover, the sling bolt adjustment jig of the second invention is
A jig used in the method of the invention, comprising: a first cutout having a depth dimension into which the upper end of the sling bolt can fit; a plurality of plates having second notches, a split nut fixed in the first notches of the plates and capable of being screwed into the upper threaded portion of the link bolt, and the plurality of plates facing each other. and fixing means for fixing.

〔作用〕[Effect]

このように本発明にあっては、スリングボルトの上端部
に調整治具を取り付け、該調整治具をジヤツキで押し上
げるとスリングボルトが上方に弓き上げられる。この状
態において、調整ナツトに加わっていた力は解除される
ので、調整ナツトの回転が容易となり、スリングボルト
の上下方向の調整が容易に実施できる。
As described above, in the present invention, an adjustment jig is attached to the upper end of the sling bolt, and when the adjustment jig is pushed up with a jack, the sling bolt is raised upward. In this state, the force applied to the adjustment nut is released, so that the adjustment nut can be easily rotated and the sling bolt can be easily adjusted in the vertical direction.

〔実施例〕〔Example〕

以下、図に示す実施例を用いて本発明の詳細な説明する
Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

第1図は本発明の調整方法に用いられる調整治具の分解
斜視図である。本治具は互いに対向する2枚のプレート
10(10a、10b)を有しており、これら2枚のプ
レー)10a、10bは同一形状で、長手方向中間部位
置には第1の切欠部11が設けられている。該第1の切
欠部11はプレー)10a、10bの下端部から上方に
向って所定位置まで切り欠かれている。この切欠部11
の幅寸法は半割りナツト12が挿入できる寸法となって
おりかつ深さ寸法はスリンク゛ボルト13の上端部13
aが入る寸法に形成されている。また、プレー)10a
、10bの長手方向両端下部には第2の切欠部14が設
けられており、該第2の切欠部14の上面14aにはジ
ヤツキ15 (第2図参照)の上端面15aが当てがわ
れるようになっている。
FIG. 1 is an exploded perspective view of an adjustment jig used in the adjustment method of the present invention. This jig has two plates 10 (10a, 10b) facing each other. is provided. The first notch 11 is cut upward from the lower end of the plates 10a and 10b to a predetermined position. This notch 11
The width dimension is such that the half nut 12 can be inserted, and the depth dimension is such that the upper end 13 of the slink bolt 13 can be inserted.
It is formed to a size that accommodates a. Also, play) 10a
, 10b is provided with a second notch 14 at the bottom of both longitudinal ends, and an upper end surface 15a of a jack 15 (see FIG. 2) is applied to the upper surface 14a of the second notch 14. It has become.

前記半割りナツト12はその雌ねじ部12aがスリング
ボルト13の上端部13aに螺設された雄ねじ部13b
に螺合し得るように形成されていると共に、該半割りナ
ツト12の外側面一部12bは第1の切欠部11に溶接
接合されている。また、前記プレート10a、10bに
おいて、第1の切欠部11と第2の切欠部14との間に
は貫通穴16が穿設されており、ボルト17が貫通でき
るようになっている。前記2枚のプレー)10a。
The half nut 12 has a female threaded portion 12a and a male threaded portion 13b screwed into the upper end 13a of the sling bolt 13.
The outer surface portion 12b of the half nut 12 is welded to the first notch 11. Further, in the plates 10a and 10b, a through hole 16 is bored between the first notch 11 and the second notch 14, so that a bolt 17 can pass therethrough. The above two plays) 10a.

10bは面合わせした状態でボルト17とナツト18と
で一体に組み立てられるようになっている。
10b can be assembled integrally with a bolt 17 and a nut 18 in a state where they are face to face.

次に、第2図を用いて本発明の調整方法を説明する。ま
ず、前記調整治具19をスリングボルト13の上端部1
3aの雄ねじ部13bに取り付ける。すなわち、調整治
具19の半割りナツト12の雌ねじ部12aを、前記ス
リングボルト13の雄ねじ部13bに両側から螺合させ
た後、ボルト17を貫通穴16に通し、ナツト18で固
定することによって、前記調整治具19を取り付けるよ
うにしている。
Next, the adjustment method of the present invention will be explained using FIG. First, the adjustment jig 19 is attached to the upper end 1 of the sling bolt 13.
Attach to the male threaded portion 13b of 3a. That is, by screwing the female threaded part 12a of the half nut 12 of the adjustment jig 19 into the male threaded part 13b of the sling bolt 13 from both sides, the bolt 17 is passed through the through hole 16 and fixed with the nut 18. , the adjustment jig 19 is attached.

次に、2個のジヤツキ15を、ボイラ鉄骨20と調整ナ
ンド21との間に配置されたブロックワッシャ22の上
に載置し、調整治具19の第2の切欠部14の上面14
aにジヤツキ15の上端面15aを当てかう。この後、
2個のジヤツキ15を同時に操作して調整治具19を上
方に押し上げる。すると、該押上げ力が2個の半割りナ
ツト12からスリングボルト13の雄ねじ部13bに伝
わり、該スリングボルト13を上方に引き上げる。
Next, the two jacks 15 are placed on the block washer 22 placed between the boiler steel frame 20 and the adjustment pad 21, and the upper surface 14 of the second notch 14 of the adjustment jig 19 is
Place the upper end surface 15a of the jack 15 on point a. After this,
The two jacks 15 are operated simultaneously to push the adjustment jig 19 upward. Then, the pushing up force is transmitted from the two half-split nuts 12 to the male threaded portion 13b of the sling bolt 13, and the sling bolt 13 is pulled upward.

これに伴って、調整ナツト21がブロックワッシャ22
の上面から離れ、それまで加わっていた推力がなくなり
、調整ナツト21の回転が自由に軽くなる。
Along with this, the adjustment nut 21 is attached to the block washer 22.
The adjusting nut 21 moves away from the upper surface, the thrust that had been applied until then disappears, and the adjustment nut 21 becomes free to rotate.

この後、調整ナツト21を手で回し所定位置で止め、前
記ジヤツキ15を逆操作しスリングボルト13を下げる
と、調整ナツト21がブロックワッシャ22の上面に接
触し荷重を支える。この状態においてジヤツキ15は無
荷重になるので、これを取り除く。次に、前記ボルト1
7をプレート10から外し、スリングボルト13から調
整治具19を取り外せば、作業は完了する。
Thereafter, when the adjusting nut 21 is turned by hand and stopped at a predetermined position, and the jack 15 is reversely operated to lower the sling bolt 13, the adjusting nut 21 comes into contact with the upper surface of the block washer 22 and supports the load. In this state, the jack 15 has no load, so it is removed. Next, the bolt 1
7 from the plate 10 and the adjustment jig 19 from the sling bolt 13, the work is completed.

なお、ジヤツキ15は油圧式、ジャーナル式のいずれで
あってもよい。
Note that the jack 15 may be either a hydraulic type or a journal type.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、スリングボルトに
調整治具を取り付け、該調整治具をジヤツキで押し上げ
ることによりスリングボルトを上方に引き上げた状態で
調整ナツトを回転させるよう構成したので、従来に比べ
てスリングボルトの調整作業が非常に容易にしかも短時
間で行なえ、作業時における疲労も少なくて済む。また
、調整時、調整ナツトに加わっていた推力がない状態で
調整ナツトの回転が行なえるので、1人で十分に作業が
でき、しかも手回しで調整できるので安全性も大幅に向
上するという種々の優れた効果を奏する。
As explained above, according to the present invention, the adjusting jig is attached to the sling bolt, and the adjusting jig is pushed up with a jack to rotate the adjusting nut while the sling bolt is pulled upward. The adjustment work of the sling bolt can be done very easily and in a short time compared to the previous one, and there is less fatigue during the work. Additionally, since the adjustment nut can be rotated without any thrust being applied to the adjustment nut during adjustment, it can be easily done by one person, and the adjustment can be made by hand, which greatly improves safety. It has excellent effects.

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

第1図は本発明の調整方法に用いられる調整治具の分解
斜視図、第2図は本発明の調整方法を説明するための図
、第3図はボイラ鉄骨からボイラヘッダを吊り下げた部
分図、第4図は従来の調整方法を説明するための図であ
る。 10(10a、10b)・・・プレート、11・・・第
1の切欠部、 12・・・半割りナツト、 13・・・スリングボルト、 13a・・・上端部、 13b・・・雄ねじ部、 14・・・第2の切欠部、 15・・・ジヤツキ、 17・・・ボルト。 出願人 日立プラント建設株式会社
Figure 1 is an exploded perspective view of an adjustment jig used in the adjustment method of the present invention, Figure 2 is a diagram for explaining the adjustment method of the present invention, and Figure 3 is a portion of the boiler header suspended from the boiler steel frame. 4 are diagrams for explaining a conventional adjustment method. 10 (10a, 10b)...Plate, 11...First notch, 12...Half nut, 13...Sling bolt, 13a...Upper end, 13b...Male thread part, 14... Second notch, 15... Jacket, 17... Bolt. Applicant Hitachi Plant Construction Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] (1)物体を懸架するスリングボルトを上下方向に調整
する方法において、スリングボルトの上端部のねじ部に
螺合する複数個の割りナットを有する調整治具を、前記
スリングボルトに固定した後、該調整治具をジャッキで
押し上げてスリングボルトを上方に引き上げ、この後調
整ナットを回転するようにしたことを特徴とするスリン
グボルトの調整方法。
(1) In a method for vertically adjusting a sling bolt that suspends an object, after fixing to the sling bolt an adjustment jig having a plurality of split nuts that are screwed into the threaded portion of the upper end of the sling bolt, A method for adjusting a sling bolt, characterized in that the adjustment jig is pushed up with a jack to pull the sling bolt upward, and then the adjustment nut is rotated.
(2)スリングボルトの上端部が入る深さ寸法を有する
第1の切欠部と該第1の切欠部の両側に設けられかつジ
ャッキ上端部が当てがわれる第2の切欠部を有する複数
のプレートと、該プレートの第1の切欠部内に固定され
かつ前記スリングボルトの上端ねじ部に螺合可能な割ナ
ットと、前記複数のプレートを面合わせした状態で固定
する固定手段とから構成されたことを特徴とするスリン
グボルトの調整治具。
(2) A plurality of plates having a first notch having a depth dimension into which the upper end of the sling bolt fits, and second notches provided on both sides of the first notch and to which the upper end of the jack is applied. and a split nut fixed within the first notch of the plate and capable of being screwed into the upper threaded portion of the sling bolt, and fixing means for fixing the plurality of plates in a face-to-face state. A sling bolt adjustment jig featuring:
JP63328316A 1988-12-26 1988-12-26 Sling bolt adjustment method and adjustment jig Expired - Fee Related JPH0643845B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63328316A JPH0643845B2 (en) 1988-12-26 1988-12-26 Sling bolt adjustment method and adjustment jig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63328316A JPH0643845B2 (en) 1988-12-26 1988-12-26 Sling bolt adjustment method and adjustment jig

Publications (2)

Publication Number Publication Date
JPH02173411A true JPH02173411A (en) 1990-07-04
JPH0643845B2 JPH0643845B2 (en) 1994-06-08

Family

ID=18208877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63328316A Expired - Fee Related JPH0643845B2 (en) 1988-12-26 1988-12-26 Sling bolt adjustment method and adjustment jig

Country Status (1)

Country Link
JP (1) JPH0643845B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006189740A (en) * 2005-01-04 2006-07-20 Isamu Yamazaki Spherical hinge spectacles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4851128B2 (en) * 2005-06-27 2012-01-11 品川リフラクトリーズ株式会社 Method and apparatus for supporting ceiling brick in coke oven combustion chamber

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252314U (en) * 1985-09-20 1987-04-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6252314U (en) * 1985-09-20 1987-04-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006189740A (en) * 2005-01-04 2006-07-20 Isamu Yamazaki Spherical hinge spectacles
JP4609795B2 (en) * 2005-01-04 2011-01-12 山崎 勇 Spherical hinge glasses

Also Published As

Publication number Publication date
JPH0643845B2 (en) 1994-06-08

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