JPS6239263Y2 - - Google Patents

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Publication number
JPS6239263Y2
JPS6239263Y2 JP16699082U JP16699082U JPS6239263Y2 JP S6239263 Y2 JPS6239263 Y2 JP S6239263Y2 JP 16699082 U JP16699082 U JP 16699082U JP 16699082 U JP16699082 U JP 16699082U JP S6239263 Y2 JPS6239263 Y2 JP S6239263Y2
Authority
JP
Japan
Prior art keywords
tank
mount
center
roof
main body
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
Application number
JP16699082U
Other languages
Japanese (ja)
Other versions
JPS5971840U (en
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 filed Critical
Priority to JP16699082U priority Critical patent/JPS5971840U/en
Publication of JPS5971840U publication Critical patent/JPS5971840U/en
Application granted granted Critical
Publication of JPS6239263Y2 publication Critical patent/JPS6239263Y2/ja
Granted legal-status Critical Current

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Description

【考案の詳細な説明】 この考案は円筒形タンクの円形屋根を組立てる
ときに用いる作業架台に関するものである。
[Detailed Description of the Invention] This invention relates to a work platform used when assembling the circular roof of a cylindrical tank.

従来、円筒形タンクの円形屋根を組立てるとき
にはタンク側板の円側に端部サポートを、タンク
中央部にセンタサポートを、特に大型タンクの場
合には両サポート間に中間サポートを夫々設け、
自動走行可能な作業架台を用いて円形屋根を組立
てゝいる。この様な従来の作業架台は走行システ
ムにもとづいてレール敷設方式とブリツジ方式と
の2つに大別される。例えば、レール敷設方式は
図面の第1,2図に示される様に、円筒形タンク
1の底板2上に外周用および内周用の作業架台
3,4のためのレール6,7を同心円状に敷設
し、各作業架台3,4に設けられた駆動装置によ
り車輪8,9を介してレール6,7上を走行でき
るようになつている。また、ブリツジ方式は第
3,4図に示される様に、作業架台5は、円筒形
タンク1の底板2の中央部に直立して設けられた
センタサポート11に設置されたリング12と、
架台駆動部とを連結して成り、駆動装置により駆
動されるタイヤ14を架台駆動部に設けて、円筒
形タンク1の底板2上を同心円状に走行できるよ
うになつている。しかし、従来のこの様なレール
敷設方式およびブリツジ方式やこれら方式に類す
るものには夫々次の様な欠点がみられる。すなわ
ち、レール敷設方式では円筒形タンクの底板上に
レールを敷設する作業に大きな労力と時間を要
し、またレールを撤去した後にレール固定の溶接
跡が残るので、その整形にも多くの時間を費やす
ようになる。更に、敷設するレールが相当長いも
のになるので、材料費およびレールのR加工の手
間が非常に大きくなつて高価につき、且つ架台本
体に比較してレールのRが小さいので度々脱線
し、信頼性に欠ける。また、ブリツジ方式は屋根
組立をセンタサポートおよび端部サポートのみで
行うときに適用されるもので、中間サポートを用
いる大型の円筒形タンクの場合には完全に機能を
失つてしまう。従つて、実際の大型タンクの屋根
施工組立時において十分な安定性と正確さを得る
ためには、やはりセンタ、中間および端部サポー
トによつて夫々屋根を支持するのが望ましい。
Conventionally, when assembling the circular roof of a cylindrical tank, an end support was provided on the circular side of the tank side plate, a center support was provided in the center of the tank, and especially in the case of a large tank, an intermediate support was provided between the two supports.
A circular roof is assembled using a work platform that can move automatically. Such conventional work racks are roughly divided into two types based on the traveling system: a rail-laying type and a bridge type. For example, as shown in Figures 1 and 2 of the drawings, in the rail laying method, rails 6 and 7 for outer and inner work platforms 3 and 4 are placed concentrically on the bottom plate 2 of a cylindrical tank 1. The rails 6 and 7 can be run on the rails 6 and 7 via wheels 8 and 9 by a drive device provided on each work platform 3 and 4. In addition, in the bridge method, as shown in FIGS. 3 and 4, the work platform 5 includes a ring 12 installed on a center support 11 provided upright in the center of the bottom plate 2 of the cylindrical tank 1,
Tires 14 driven by the drive device are provided on the gantry drive section so that the gantry drive section can run concentrically on the bottom plate 2 of the cylindrical tank 1. However, these conventional rail laying systems, bridge systems, and similar systems have the following drawbacks. In other words, with the rail-laying method, it takes a lot of effort and time to lay the rails on the bottom plate of the cylindrical tank, and welding marks from when the rails were fixed remain after the rails are removed, so it takes a lot of time to shape them. Start spending. Furthermore, since the rails to be laid are quite long, the cost of materials and the labor involved in machining the radius of the rails are very high, making them expensive.Also, since the radius of the rails is small compared to the main body of the mount, derailments occur frequently and reliability is reduced. It lacks. Furthermore, the bridge method is applied when assembling the roof using only the center support and end supports, and will completely lose its function in the case of a large cylindrical tank that uses intermediate supports. Therefore, in order to obtain sufficient stability and accuracy during actual construction and assembly of the roof of a large tank, it is still desirable to support the roof with center, intermediate and end supports, respectively.

従つて、この考案の目的はこの様な従来の欠点
を除去するために、鉄骨材を組立て成り且つ円筒
形タンクの直径方向に配置される走行架台に設け
られた滑車にリング状のワイヤを掛けてセンタサ
ポートや中間サポートまわりに走行架台を回動で
きるようなし、レールを敷設することなく屋根作
業用架台により屋根の組立作業が円滑に確実且つ
安全に能率的にできるようにした円筒形タンク屋
根作業用架台を提供することにある。
Therefore, the purpose of this invention is to eliminate such drawbacks of the conventional method by assembling steel frames and suspending a ring-shaped wire from a pulley provided on a traveling platform arranged in the diametrical direction of a cylindrical tank. A cylindrical tank roof that allows the traveling platform to rotate around the center support and intermediate supports, and allows roof assembly work to be carried out smoothly, reliably, safely, and efficiently using a roof work platform without the need to lay rails. The purpose is to provide a work platform.

この考案に依れば、円筒形タンク屋根作業用架
台は、鉄骨材を組立て且つ円筒形タンクの直径方
向に配置された架台本体に車輪を設けてタンク中
心まわりに走行できるようなし、タンク中央のセ
ンタサポート或はセンタサポートと同心円状に設
けられた中間サポートのまわりにリング状に設け
られたワイヤロープを、架台本体に設けられた滑
車に掛けて架台本体をタンク中心まわりに回動で
きるよう案内することができる。
According to this invention, the frame for working on the roof of a cylindrical tank is constructed by assembling steel frames and installing wheels on the frame body arranged in the diametrical direction of the cylindrical tank so that it can run around the center of the tank. A wire rope provided in a ring shape around the center support or an intermediate support provided concentrically with the center support is hung on a pulley provided on the mount body to guide the mount body so that it can rotate around the center of the tank. can do.

この考案の他の目的や特徴および利点は以下の
図面に沿つての詳細な説明から明らかになろう。
Other objects, features and advantages of the invention will become apparent from the detailed description taken in conjunction with the following drawings.

第5乃至10図にはこの考案が大型の円筒形タ
ンクの屋根の組立の際に用いられる一実施例が示
されている。図示される様に、大型の円筒形タン
ク20は内槽側板23の内側に端部サポート25
が、またタンク中央部にセンタサポート27が設
けられると共に、両サポート25,27間のほゞ
中間に中間サポート26が設けられて円形屋根2
2を組立てるときのサポートとして用いられる。
この様な端部サポート25、中間サポート26、
センタサポート27間にこの考案の屋根作業用架
台が設けられている。すなわち、図示実施例にお
いては、端部および中間サポート25,26間に
外周架台31が、中間およびセンタサポート2
6,27間に内周架台32がタンク底板21上に
直径方向に夫々設けられている。各架台31,3
2は適宜な鉄骨材を組立て成る架台本体33,3
4を有し、タンク中心まわりに回動できるように
タンク底板21上に架台33,34を支持し且つ
適宜な駆動装置により駆動される車輪35を備え
ている。また、各架台33,34には外側および
内側の滑車37,38がタンク直径方向すなわち
架台の横長手方向に移動調節可能な適宜な取付部
材39を介して設けられており、各架台33,3
4を中間およびセンタサポート26,27の周囲
に沿つてタンク底板21上を同心円状に回動する
よう案内するためにリング状の外側および内側ワ
イヤ41,42が掛けられている。外側および内
側の滑車37,38は架台本体33,34に異つ
た高さに設けられることが好適で、特に外側のワ
イヤ41がタンク内の作業の妨げとならないよう
にタンク底板21より2〜3mの高さに掛けられ
ることが好適である。また、これらワイヤ41,
42は、溝型鋼の様な適宜な鋼材からつくられる
案内リング29(第6,7図)をセンタサポート
27の外周に、案内部材28(第8,9図)を中
間サポート26に夫々設けて円滑に案内される。
外側および内側の滑車37,38にこの様に掛け
られたワイヤ41,42は、各滑車の取付部材3
9により架台本体33,34に対する取付位置を
調節することによつてワイヤに適宜な張力が作用
されるようになつている(第10図)。尚、ワイ
ヤに作用される帳力の調節は、この様な移動調節
可能な取付部材による滑車位置の調節による以外
にも、固定式の滑車においてワイヤ自体の長さの
調節によつてワイヤに適宜な張力を作用できるこ
とは勿論である。また、架台一基に対して外側お
よび内側ワイヤ41,42を2本用いるのは架台
の自転を防止するためである。
Figures 5 to 10 show an embodiment in which the invention is used in assembling the roof of a large cylindrical tank. As shown, the large cylindrical tank 20 has an end support 25 on the inside of the inner tank side plate 23.
However, a center support 27 is provided in the center of the tank, and an intermediate support 26 is provided approximately in the middle between both supports 25 and 27, so that the circular roof 2
It is used as a support when assembling 2.
Such end supports 25, intermediate supports 26,
The roof work frame of this invention is provided between the center supports 27. That is, in the illustrated embodiment, the outer periphery frame 31 is provided between the end and intermediate supports 25 and 26, and the outer peripheral frame 31 is provided between the intermediate and center supports 25 and 26.
Inner peripheral frames 32 are provided between 6 and 27 on the tank bottom plate 21 in the diametrical direction. Each mount 31, 3
2 is a frame main body 33, 3 made up of appropriate steel frame materials.
4, supports frames 33 and 34 on the tank bottom plate 21 so as to be rotatable around the center of the tank, and is provided with wheels 35 driven by a suitable drive device. In addition, outer and inner pulleys 37 and 38 are provided on each of the mounts 33 and 34 via a suitable mounting member 39 that can be moved and adjusted in the tank diameter direction, that is, in the horizontal and longitudinal direction of the mount.
Ring-shaped outer and inner wires 41, 42 are hung to guide the tank 4 in concentric rotation on the tank bottom plate 21 along the circumference of the intermediate and center supports 26, 27. It is preferable that the outer and inner pulleys 37 and 38 are provided at different heights on the gantry bodies 33 and 34, and in particular, 2 to 3 m above the tank bottom plate 21 so that the outer wire 41 does not interfere with work inside the tank. It is preferable that it be hung at a height of . Moreover, these wires 41,
42, a guide ring 29 (Figs. 6 and 7) made of a suitable steel material such as channel steel is provided on the outer periphery of the center support 27, and a guide member 28 (Figs. 8 and 9) is provided on the intermediate support 26, respectively. You will be guided smoothly.
The wires 41, 42, which are hung in this way on the outer and inner pulleys 37, 38, are attached to the mounting members 3 of each pulley.
By adjusting the mounting position with respect to the frame bodies 33 and 34 by means 9, an appropriate tension is applied to the wire (FIG. 10). The force applied to the wire can be adjusted not only by adjusting the position of the pulley using a movable and adjustable mounting member, but also by adjusting the length of the wire itself using a fixed pulley. Of course, it is possible to apply a certain tension. Further, the reason why two outer and inner wires 41 and 42 are used for one gantry is to prevent the gantry from rotating.

更に、この様なワイヤの係止方法が異なる別の
実施例が第11,12図に概略的に示されてい
る。第11図の実施例では架台32の内側に2組
の滑車37a,37aが設けられて各組の滑車3
7a,37aにワイヤ41a,41aが夫々掛け
られており、第12図の実施例では架台32の外
側および内側の滑車37b,38bの対向する1
つを一組となして各組にワイヤ41b,41bが
夫々掛けられていて、各々架台32の自転を防止
して正確な円運動を行なうようできる。勿論、ワ
イヤは作業架台の自転を防止するように第7,1
1,12図に示される以外にも適宜な具合に掛け
ることができるものであり、またワイヤの張力は
滑車の取付位置の調節によつて所要の張力に調節
でき、更にレバーブロツク、ウインチ、ジヤーナ
ルジヤツキ等の簡単な手段によつてワイヤに張力
を与える動力源とすることができる。
Furthermore, another embodiment in which the method of locking the wire is different is schematically shown in FIGS. 11 and 12. In the embodiment shown in FIG. 11, two sets of pulleys 37a, 37a are provided inside the frame 32, and each set of pulleys 3
Wires 41a, 41a are hung on the wires 7a, 37a, respectively, and in the embodiment shown in FIG.
The two wires 41b and 41b are connected to each set, respectively, to prevent the rotation of the pedestal 32 and to perform accurate circular motion. Of course, the wires are connected to the seventh and first wires to prevent the work platform from rotating.
1 and 12, the wire tension can be adjusted to the required tension by adjusting the mounting position of the pulley. It can be used as a power source to apply tension to the wire by simple means such as jacking.

この様に構成されたこの考案の円筒形タンク屋
根作業用架台に依れば、鉄骨材を組立て成る架台
本体に適宜な駆動装置により駆動される車輪を設
けてタンク中心まわりに走行できるようなすと共
に、架台本体に滑車を位置調節可能に移動できる
よう設け、リング状の複数本のワイヤを架台本体
のこれら滑車に掛けて架台本体をタンク中心まわ
りに回動できるように案内し、これによつて中間
サポートの存在を問題とすることなく大型の円筒
形タンクの屋根組立を正確安全に行い、レールの
敷設撤去および撤去後の溶接跡の整形等の作業が
皆無となり、作業工数の大幅の削減と使用材料の
低減および工期の短縮等が可能となり、屋根の組
立作業が能率化でき、経済的で、屋根の組立に用
いるセンタサポートや中間サポートを利用して作
業用架台の回動を安全確実に行うので、架台本体
以外の新規な器材が極めて少なくなり且つ簡便に
実施できる等の利点が得られる。
According to the mount for working on the cylindrical tank roof of this invention constructed in this manner, the mount main body, which is made up of steel frames, is provided with wheels driven by an appropriate drive device so that it can run around the center of the tank. , a pulley is provided on the frame body so that its position can be adjusted, and a plurality of ring-shaped wires are hung on these pulleys on the frame body to guide the frame body so that it can rotate around the center of the tank. The roof of a large cylindrical tank can be accurately and safely assembled without having to worry about the presence of intermediate supports, and there is no need to install or remove rails or shape welding marks after removal, resulting in a significant reduction in work man-hours. It is possible to reduce the amount of materials used and shorten the construction period, making the roof assembly work more efficient and economical.The center support and intermediate support used for roof assembly can be used to safely and reliably rotate the work frame. Since the method is carried out, there are advantages such as the need for new equipment other than the gantry itself is extremely reduced and it can be carried out easily.

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

第1図および第2図は従来のレール敷設方式に
よる円筒型タンク屋根組立作業時の屋根作業用架
台の概略立面部分図および平面部分図、第3図お
よび第4図は従来のブリツジ方式による円筒型タ
ンク屋根組立作業時の屋根作業用架台の概略立面
部分図および平面部分図、第5図はこの考案の円
筒形タンク屋根作業用架台による大型の円筒形タ
ンクの屋根組立時の概略説明図で、第6図は立面
部分図で、第7図は平面部分図、第8図および第
9図はワイヤの案内部材を示す側断面図および立
面図、第10図はワイヤの掛け方を示す平面部分
図、第11図および第12図はワイヤの別の掛け
方の例を示す平面図である。図中、21:底板、
22:屋根、25:端部サポート、26:中間サ
ポート、27:センタサポート、31,32:架
台、33,34:架台本体、37,37a,37
b,38,38b:滑車、41,41a,41
b,42:ワイヤ。
Figures 1 and 2 are schematic partial elevation and plan views of a roof work platform used for assembling a cylindrical tank roof using the conventional rail laying method, and Figures 3 and 4 are based on the conventional bridge method. A schematic partial elevation view and a partial plan view of the frame for roof work when assembling the roof of a cylindrical tank; FIG. In the figures, Fig. 6 is a partial elevational view, Fig. 7 is a partial plan view, Figs. 8 and 9 are side sectional views and elevational views showing the wire guide member, and Fig. 10 is a wire hanging part. FIGS. 11 and 12 are plan views showing examples of another way of hanging the wire. In the figure, 21: bottom plate,
22: Roof, 25: End support, 26: Intermediate support, 27: Center support, 31, 32: Frame, 33, 34: Frame body, 37, 37a, 37
b, 38, 38b: Pulley, 41, 41a, 41
b, 42: wire.

Claims (1)

【実用新案登録請求の範囲】 1 鉄骨材を組立て成り且つ円筒形タンク底板上
に直径方向に配置された架台本体、タンク中心
まわりに架台本体を走行するタンク底板上に架
台本体を支持し且つ駆動装置により駆動される
よう架台本体に設けられた車輪、架台本体に取
付られた滑車、センタサポートまたは中間サポ
ートのまわりにリング状に設けられて架台本体
の滑車に掛けられるワイヤを備え、該架台本体
の滑車に掛けられたワイヤにより架台本体をタ
ンク中心まわりに回動できるよう案内する円筒
形タンク屋根作業用架台。 2 架台本体に設けられる滑車および滑車に掛け
られるワイヤが夫々2組設けられることを特徴
とする実用新案登録請求の範囲第1項記載の円
筒形タンク屋根作業用架台。
[Scope of Claim for Utility Model Registration] 1. A mount body assembled from steel frames and placed diametrically on a cylindrical tank bottom plate, supporting and driving the mount body on the tank bottom plate that runs around the center of the tank. A wheel provided on the gantry main body to be driven by a device, a pulley attached to the gantry main body, and a wire provided in a ring shape around the center support or intermediate support and hung on the pulley of the gantry main body, the gantry main body A mount for working on a cylindrical tank roof that guides the main body of the mount so that it can rotate around the center of the tank using a wire hung on a pulley. 2. The mount for working on a cylindrical tank roof according to claim 1, which is characterized by having two sets of pulleys provided on the mount body and two sets of wires to be hung on the pulleys.
JP16699082U 1982-11-05 1982-11-05 Cylindrical tank roof work frame Granted JPS5971840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16699082U JPS5971840U (en) 1982-11-05 1982-11-05 Cylindrical tank roof work frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16699082U JPS5971840U (en) 1982-11-05 1982-11-05 Cylindrical tank roof work frame

Publications (2)

Publication Number Publication Date
JPS5971840U JPS5971840U (en) 1984-05-16
JPS6239263Y2 true JPS6239263Y2 (en) 1987-10-06

Family

ID=30365451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16699082U Granted JPS5971840U (en) 1982-11-05 1982-11-05 Cylindrical tank roof work frame

Country Status (1)

Country Link
JP (1) JPS5971840U (en)

Also Published As

Publication number Publication date
JPS5971840U (en) 1984-05-16

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