JPH0643845B2 - Sling bolt adjustment method and adjustment jig - Google Patents
Sling bolt adjustment method and adjustment jigInfo
- Publication number
- JPH0643845B2 JPH0643845B2 JP63328316A JP32831688A JPH0643845B2 JP H0643845 B2 JPH0643845 B2 JP H0643845B2 JP 63328316 A JP63328316 A JP 63328316A JP 32831688 A JP32831688 A JP 32831688A JP H0643845 B2 JPH0643845 B2 JP H0643845B2
- Authority
- JP
- Japan
- Prior art keywords
- jig
- adjusting
- adjustment
- sling bolt
- bolt
- 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.)
- Expired - Fee Related
Links
Landscapes
- Connection Of Plates (AREA)
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。TECHNICAL FIELD The present invention relates to an adjusting method and an adjusting jig for a sling bolt of a heavy equipment such as a boiler that is suspended and installed in a space.
第3図はボイラ鉄骨1からボイラヘツダ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
ツシヤ3が配置されており、該ブロツクワツシヤ3の中
央部に設けられた穴3aをスリングボルト4が貫通した
構造となっている。該スリングボルト4に螺合する調整
ナツト5がブロツクワツシヤ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
されたボイラヘツダ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。FIG. 3 is a view showing a state in which a boiler head 1 is suspended from a boiler steel frame 1, and a block washer 3 is arranged at an upper end portion of the boiler steel frame 1 and a hole 3 a provided at a central portion of the block washer 3 The sling bolt 4 penetrates through. An adjusting nut 5 screwed onto the sling bolt 4 is arranged on the upper surface of the block washer 3, and the adjusting nut 5 supports the boiler header 2 connected to the lower end of the sling bolt 4 and also the vertical direction of the suspended object. Plays a role in adjusting the level of. Further, a nut disengagement stopper 6 is provided on the upper end portion of the sling bolt 4 so that it 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100mm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
締付け調整が行われている。Generally, in large-scale thermal power plants, hundreds of sling bolts 4 with a diameter of 100 mm are used to suspend and hold a boiler of several thousand tons in a space. Adjust the level several times.
Then, the tightening adjustment of the adjustment nut 5 of the sling bolt 4 is performed every time.
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, in the conventional case, when the adjustment nut 5 of the sling bolt 4 is to be tightened and adjusted, as shown in FIG. A person shook the large hammer 9 and rotated the adjustment nut 5 little by little to make adjustments. Therefore, it takes time to adjust in combination with working at height,
There is a risk of being hit by a large hammer that has been struck,
There were drawbacks such as getting tired.
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。The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a sling bolt adjusting method and an adjusting jig which are easy to adjust the sling bolt, reduce fatigue, and have high safety.
請求項1に記載の発明は、物体を懸架するために用いら
れ上端部に外れ止め用の拡径部を有すると共に前記外れ
止めの下側にねじ部を備えたスリングボルトを上下方向
に調整する方法において、前記ねじ部に対して径方向に
複数個に分割可能とされ、分割された各片に各々前記ね
じ部に螺合する雌ねじ部を備える調整治具と、前記調整
治具と前記物体の荷重を支持する支持体との間に前記ス
リングボルトの径方向に取り外し自在に配置され、前記
調整治具を上下方向に移動させるジャッキと、前記ねじ
部に螺合して前記支持体に載置された支持部材上側に配
設され前記スリングボルトを前記支持部材に対して上下
方向に調整するための調整ナットと、を用い、前記スリ
ングボルトを上下方向に調整する際には、前記スリング
ボルトを分割された前記調整治具の各片によって半径方
向外側から挟み込み、前記調整治具の前記各片を相互に
連結して前記雌ねじ部を前記ねじ部に螺合させ、前記ね
じ部に螺合した前記調整治具を前記ジャッキで押し上げ
た後に前記調整ナットを回転させることを特徴としてい
る。According to a first aspect of the present invention, a sling bolt, which is used for suspending an object and has an enlarged diameter portion for preventing desorption at an upper end thereof and has a threaded portion on a lower side of the desorption stopper, is vertically adjusted. In the method, an adjusting jig, which is dividable into a plurality of parts in the radial direction with respect to the threaded part, and each of the divided pieces has a female thread part screwed into the threaded part, the adjusting jig and the object. And a jack for moving the adjusting jig in the vertical direction, and a screw that is screwed onto the screw part and is mounted on the support. When adjusting the sling bolt in the up-down direction using an adjustment nut arranged above the placed support member to adjust the sling bolt in the up-down direction with respect to the support member, the sling bolt Is split The adjustment jig is sandwiched by the pieces of the adjustment jig from the outside in the radial direction, the pieces of the adjustment jig are connected to each other, the female screw portion is screwed into the screw portion, and the adjustment jig is screwed into the screw portion. The adjusting nut is rotated after the tool is pushed up by the jack.
また、請求項2に記載の発明は、上端部に外れ止め用の
拡径部を有すると共に前記外れ止めの下側にねじ部を備
えたスリングボルトを上下方向に調整するための調整治
具であって、前記調整治具は、前記ねじ部に対して径方
向に分割される複数個の調整治具分割片と、複数個に分
割された前記調整治具分割片を相互に連結して一体化す
るための固定手段と、前記調整治具分割片に各々設けら
れ前記ねじ部に螺合する雌ねじ部と、を有するとを特徴
としている。Further, the invention according to claim 2 is an adjustment jig for vertically adjusting a sling bolt having an enlarged diameter portion for preventing desorption at the upper end portion and having a threaded portion on the lower side of the desorption prevention. The adjustment jig includes a plurality of adjustment jig divided pieces that are divided in the radial direction with respect to the screw portion, and the adjustment jig divided pieces that are divided into a plurality of pieces are connected to each other to form an integrated body. And a female screw portion provided on each of the adjusting jig divided pieces and screwed into the screw portion.
このように本発明にあっては、スリングボルトのねじ部
に径方向外側から調整治具片をあてがって連結すること
によって調整治具を取り付け、この調整治具をジャッキ
で押し上げることによりスリングボルトが上方に押し上
げられる。この状態において、調整ナットに加わってい
た力は開放されるので、調整ナッ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なる。As described above, in the present invention, the adjusting jig is attached by connecting the adjusting jig piece to the threaded portion of the sling bolt from the outside in the radial direction, and the sling bolt is attached by pushing up the adjusting jig with the jack. It is pushed up. In this state, the force applied to the adjusting nut is released, so that the adjusting nut can be easily rotated and the sling bolt can be easily adjusted in the vertical direction.
以下、図に示す実施例を用いて本発明の詳細を説明す
る。The present invention will be described in detail below with reference to the 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
レート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はプレート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が挿できる寸法となってお
りかつ深さ寸法はスリングボルト13の上端部13aが
入る寸法に形成されている。また、プレート10a、1
0b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 adjusting jig used in the adjusting method of the present invention. This jig has two plates 10 (10a, 10b) facing each other. These two plates 10a, 10b have the same shape, and a first notch 11 is provided at an intermediate position in the longitudinal direction. It is provided. The first notch 11 is notched upward from the lower end of the plates 10a, 10b to a predetermined position. This notch 11
Has a width dimension into which the half nut 12 can be inserted, and a depth dimension into which the upper end portion 13a of the sling bolt 13 can be inserted. Also, the plates 10a, 1
Second cutouts 14 are provided at the lower ends of both ends in the longitudinal direction of 0b, and the upper end surface 15a of the jack 15 (see FIG. 2) is applied to the upper surface 14a of the second cutouts 14. 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枚のプレート10a、10
b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。The half nut 12 has a female screw portion 12a screwed onto an upper end portion 13a of a sling bolt 13 to form a male screw portion 13b.
It is formed so that it can be screwed into, and 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 formed between the first notch portion 11 and the second notch portion 14 so that the bolt 17 can pass therethrough. The two plates 10a, 10
In the state of b, the bolts 17 and nuts 18 are integrally assembled in a state of being 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 adjusting method of the present invention will be described with reference to FIG. First, the adjustment jig 19 is attached to the upper end portion 1 of the sling bolt 13.
It is attached to the male screw portion 13b of 3a. That is, after the female screw portion 12a of the half nut 12 of the adjusting jig 19 is screwed into the male screw portion 13b of the sling bolt 13 from both sides, the bolt 17 is passed through the through hole 16 and fixed by 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
ツト21との間に配置されたブロツクワツシヤ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を当てがう。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。これ
に伴って、調整ナツト21がブロツクワツシヤ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。Next, the two jacks 15 are placed on the block washer 22 arranged between the boiler steel frame 20 and the adjusting nut 21, and the upper surface 14 of the second cutout portion 14 of the adjusting jig 19 is placed.
The upper end surface 15a of the jack 15 is applied to a. After this,
The two jigs 15 are simultaneously operated to push the adjusting jig 19 upward. Then, the pushing force is transmitted from the two half nuts 12 to the male screw portion 13b of the sling bolt 13, and the sling bolt 13 is pulled upward. Along with this, the adjustment nut 21 is separated from the upper surface of the block washer 22, the thrust force that has been applied until then is eliminated, and the rotation of the adjustment nut 21 is freely lightened.
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がブロツクワツシヤ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。After that, when the adjusting nut 21 is manually rotated 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 to support the load. In this state, the jack 15 has no load and is removed. Next, the bolt 1
The work is completed by removing 7 from the plate 10 and removing the adjusting jig 19 from the sling bolt 13.
なお、ジヤツキ15は油圧式、ジヤーナル式のいずれで
あってもよい。The jack 15 may be either a hydraulic type or a journal type.
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。な
お、調整治具は最低限2個一対の調整治具片で構成する
ことができるため、構造が極めて簡単で故障要因が少な
い。また、調整治具片をねじ部の径方向外側からあてが
って調整治具を取り付けるようになっているので、スト
ッパー用の拡径部に大小があっても取り付け作業には影
響が無い。さらに、ジャッキは、調整治具と支持体との
間にスリングボルトの径方向から入れられるので、通常
の市販品を使用でき、ストローク、推力等の変更に容易
に対応でき、調整後にはジャッキは不要となる。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 described above, according to the present invention, since the adjusting jig is attached to the sling bolt and the adjusting jig is pushed up by the jack, the adjusting nut is rotated while the sling bolt is pulled upward. The sling bolt adjustment work can be performed very easily and in a short time compared to the above, and less fatigue is required during the work. Since the adjusting jig can be composed of at least two pairs of adjusting jig pieces, the structure is extremely simple and there are few failure factors. Further, since the adjusting jig is attached by applying the adjusting jig piece from the outer side in the radial direction of the screw portion, even if the enlarged diameter portion for the stopper is large or small, the attaching work is not affected. Furthermore, since the jack is inserted between the adjustment jig and the support in the radial direction of the sling bolt, it is possible to use ordinary commercial products and easily respond to changes in stroke, thrust, etc. It becomes unnecessary. Also,
At the time of adjustment, the adjustment nut can be rotated without the thrust applied to the adjustment nut, so one person can do the work sufficiently, and since it can be adjusted by hand, the safety is greatly improved. Produce an effect.
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ツダを吊り下げた
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。FIG. 1 is an exploded perspective view of an adjusting jig used in the adjusting method of the present invention, FIG. 2 is a view for explaining the adjusting method of the present invention, and FIG. 3 is a partial view in which a boiler head is suspended from a boiler steel frame. , FIG. 4 is a diagram for explaining a conventional adjustment method. 10 (10a, 10b) ... plate, 11 ... first notch, 12 ... half nut, 13 ... sling bolt, 13a ... upper end, 13b ... male screw part, 14 ... second Notch, 15 ... Jack, 17 ... Bolt.
Claims (2)
れ止め用の拡径部を有すると共に前記外れ止めの下側に
ねじ部を備えたスリングボルトを上下方向に調整する方
法において、 前記ねじ部に対して径方向に複数個に分割可能とされ、
分割された各片に各々前記ねじ部に螺合する雌ねじ部を
備える調整治具と、 前記調整治具と前記物体の荷重を支持する支持体との間
に前記スリングボルトの径方向に取り外し自在に配置さ
れ、前記調整治具を上下方向に移動させるジャッキと、 前記ねじ部に螺合して前記支持体に載置された支持部材
上側に配設され前記スリングボルトを前記支持部材に対
して上下方向に調整するための調整ナットと、を用い、 前記スリングボルトを上下方向に調整する際には、前記
スリングボルトを分割された前記調整治具の各片によっ
て半径方向外側から挟み込み、前記調整治具の前記各片
を相互に連結して前記雌ねじ部を前記ねじ部に螺合さ
せ、 前記ねじ部に螺合した前記調整治具を前記ジャッキで押
し上げた後に前記調整ナットを回転させることを特徴と
するスリングボルトの調整方法。1. A method of vertically adjusting a sling bolt, which is used for suspending an object and has an enlarged diameter portion for preventing desorption at an upper end thereof and having a screw portion on a lower side of the desorption prevention, It is possible to divide into multiple parts in the radial direction with respect to the screw part,
The adjustment jig having internal threaded portions that are respectively screwed into the threaded portions on the divided pieces, and the adjustment jig and a support body that supports the load of the object are removable in the radial direction of the sling bolt. And a jack for moving the adjustment jig in the vertical direction, and a sling bolt with respect to the support member, which is arranged on an upper side of a support member which is screwed into the screw portion and placed on the support body. When adjusting the sling bolt in the up-down direction, using an adjustment nut for adjusting in the up-down direction, the sling bolt is sandwiched by the divided pieces of the adjustment jig from outside in the radial direction, and the adjustment is performed. Connecting the respective pieces of the jig to each other to screw the female screw portion into the screw portion, and pushing up the adjusting jig screwed into the screw portion with the jack, and then rotating the adjusting nut. How to adjust the characteristic sling bolt.
に前記外れ止めの下側にねじ部を備えたスリングボルト
を上下方向に調整するための調整治具であって、 前記調整治具は、前記ねじ部に対して径方向に分割され
る複数個の調整治具分割片と、複数個に分割された前記
調整治具分割片を相互に連結して一体化するための固定
手段と、前記調整治具分割片に各々設けられ前記ねじ部
に螺合する雌ねじ部と、を有するとを特徴とした調整治
具。2. An adjusting jig for vertically adjusting a sling bolt having an enlarged diameter portion for preventing desorption and having a threaded portion on a lower side of the desorption stopper, the adjusting jig The tool is a fixing means for connecting a plurality of adjusting jig divided pieces, which are divided in the radial direction with respect to the screw portion, and the adjusting jig divided pieces, which are divided into a plurality of pieces, to each other to integrate them. And an internal thread portion provided on each of the adjustment jig divided pieces and screwed into the thread portion.
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 JPH02173411A (en) | 1990-07-04 |
JPH0643845B2 true 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)
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Publication number | Priority date | Publication date | Assignee | Title |
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JP4609795B2 (en) * | 2005-01-04 | 2011-01-12 | 山崎 勇 | Spherical hinge glasses |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6252314U (en) * | 1985-09-20 | 1987-04-01 |
-
1988
- 1988-12-26 JP JP63328316A patent/JPH0643845B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007002189A (en) * | 2005-06-27 | 2007-01-11 | Jfe Refractories Corp | Method and apparatus for supporting ceiling brick of combustion chamber in coke oven |
Also Published As
Publication number | Publication date |
---|---|
JPH02173411A (en) | 1990-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |