JPS59172382A - Center rest device for hung load of crane - Google Patents
Center rest device for hung load of craneInfo
- Publication number
- JPS59172382A JPS59172382A JP4246083A JP4246083A JPS59172382A JP S59172382 A JPS59172382 A JP S59172382A JP 4246083 A JP4246083 A JP 4246083A JP 4246083 A JP4246083 A JP 4246083A JP S59172382 A JPS59172382 A JP S59172382A
- Authority
- JP
- Japan
- Prior art keywords
- club
- crane
- sheave block
- girder
- sleeve
- 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
Landscapes
- Jib Cranes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は、クレーンの吊荷振れ止め装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crane load swinging device.
クレーンとくに天井走行うレーンは、そのガータ上で横
行移動゛し得るクラブにロープ伝動系をそなえ、これに
より吊下げ保持したフックつきシーブブロックに玉掛け
をした重量物すなわち吊荷の吊り持ち、吊卸しを、移送
にあわせ行なうのに便利であるが、この移送中にしばし
ば吊荷の揺動が起り、これを防止または鎮静させる運転
制御には練達を必要とし、とくにクレーンの操縦を自動
化しようとするとき、吊荷の振れ止めが不可欠である。A crane, especially an overhead lane, is equipped with a rope transmission system for a club that can move laterally on the gutter, and is used to lift and unload heavy objects, i.e., hanging loads, which are slinged to a sheave block with a hook that is held suspended. However, the suspended load often shakes during this transfer, and operation control to prevent or calm this movement requires skill, especially when attempting to automate crane operation. In such cases, it is essential to steady the suspended load.
この問題は天井走行うレーンのみならずたとえばジブク
レーンやホイストなどのように、可動または固定の桁に
沿って動く、上記クラブに類似した吊持ち移動架構によ
り、シーブブロックを吊下げ保持して使用する場合にお
いてほぼ同様である。This problem can be solved not only by overhead running lanes, but also by suspending and holding the sheave block using a suspended moving frame similar to the above-mentioned club, which moves along a movable or fixed girder, such as a jib crane or hoist. The cases are almost the same.
このような出荷の振れ止めのため、たとえばシーブブロ
ックに少なくとも一対の抑止腕をその両端で上向きに角
状をなすように突設してこれによる吊り荷の予定吊り揚
げ高さにおいて該角状端を衝合するストッパーを、吊持
ち移動架構たとえばクラブの下面に突設し、該衝合をも
たらす位置にシーブブロックを巻き揚げておくことによ
り、移送中に吊荷の揺動を来す水平力と全面対抗させる
ことを試みたところ、出荷がとくに重いとき、その重量
Wと、その移送時に加速度αとに従い、F=W/!J
・α
ここにg :重力の加速度
であられされる水平力が、ストッパーを介してクラブま
たさらには、ガーダに過大な応力を発生させるモーメン
トを生じてそれらの補強を必要としその改造に費用が嵩
む欠点がある。To prevent such shipping from steadying, for example, a sheave block is provided with at least a pair of restraining arms projecting upward in an angular shape at both ends, so that the angular ends can be fixed at the planned lifting height of the suspended load. By installing a stopper that protrudes from the lower surface of the suspension moving frame, such as the club, and hoisting the sheave block to a position that brings about the collision, the horizontal force that causes the suspended load to swing during transportation can be reduced. When the shipment is particularly heavy, F=W/! according to the weight W and the acceleration α during transportation. J
・α where g: Horizontal force exerted by the acceleration of gravity creates a moment that generates excessive stress on the club or even the girder via the stopper, requiring reinforcement and increasing costs for modification. There are drawbacks.
そこでこの発明はこのような改造を必要とせず、また上
記のようにクラブやガーダに過大な応力を生じることな
く、適切な振れ止めを実現することを目的とするもので
ある。Therefore, the object of the present invention is to realize an appropriate steady rest without requiring such modification and without causing excessive stress to the club or girder as described above.
すなわちこの発明は、工場建家の桁上に敷設した軌道に
沿い走行する天井走行うレーンのガーダ上でこれに敷設
した軌道に沿い横行するクラブ、またはこれに類似の吊
持ち移動架構の下面に、該架構上に架設したロープ伝動
系によるフックつきシーブブロックの昇降径路を挟んで
少なくとも一対のガイドスリーブを取付け、このガイド
スリーブに対しテレスコビイツクに抜差し移動自在なガ
イドロッドにはその下端で下向きに開口する受は口を設
け、この受は口に面する上向き角状端をもつ少なくとも
一対の抑止腕を、上記シーブブロックに取付け、ガイド
スリーブの内部に緩衝器を配設したことにより、クレー
ンの移動に伴って生じる上記水平力Fを、緩衝器に生じ
る減衰力により対抗させもって揺動の発生をとくに有利
に抑制したものである。In other words, the present invention is directed to a club running horizontally along a track laid on the girder of an overhead lane running along a track laid on a girder of a factory building, or to the underside of a similar suspension moving frame. At least a pair of guide sleeves are installed across the lifting path of the sheave block with a hook by the rope transmission system installed on the frame, and the guide rod, which can be telescopically inserted into and removed from the guide sleeve, has a downward opening at its lower end. The receiver is provided with a mouth, and the receiver has at least a pair of restraining arms with upwardly facing angular ends facing the mouth, and is attached to the sheave block, and a shock absorber is disposed inside the guide sleeve, so that movement of the crane is prevented. The above-mentioned horizontal force F caused by this is counteracted by the damping force generated in the shock absorber, thereby particularly advantageously suppressing the occurrence of rocking.
第1図にこの発明を天井走行うレーンに適用した実施例
を示し、図中1は工場建家、2はガーダ、3はクラブで
あり、4,5はそれらの軌道、4a。Fig. 1 shows an embodiment in which the present invention is applied to an overhead running lane, in which 1 is a factory building, 2 is a girder, 3 is a club, and 4 and 5 are their tracks, 4a.
5aは車輪である。5a is a wheel.
クラブ3上には、ロープ伝動系、7を架設し、その巻き
胴8に巻がけしだロープは、フック9をビン10で枢支
したシーブブロック11のシーブ12に巻つけて一端を
クラブ3上に固着することにより、該シーブブロック1
1ひいてはフック9を昇降可能とする。図にシーブブロ
ツ11の上昇極端位置を実線により図示し、仮想線でわ
ずかに下降させた位置を示しである。A rope transmission system 7 is installed on the club 3, and the rope is wound around the winding body 8. The rope is wound around the sheave 12 of the sheave block 11, which has a hook 9 pivotally supported by a pin 10, and one end is attached to the club 3. By fixing on the sheave block 1
1 and thus the hook 9 can be raised and lowered. In the figure, the extreme raised position of the sieve block 11 is shown by a solid line, and the imaginary line shows a slightly lowered position.
シーブブロック11は上端でシーブ12をビン13で枢
支するほかフック9をビン10で(8支したヨーク14
との間で左右に張出す抑止腕15を挟んで合体しその両
側に上向き角状端16を突設しである。The sheave block 11 has a sheave 12 supported by a pin 13 at the upper end, and a hook 9 supported by a pin 10 (8 supported yoke 14).
They are combined with a restraining arm 15 extending left and right between them, and upwardly facing angular ends 16 are protruded from both sides of the restraining arm 15.
クラブ3の下面には、ロープ伝動系7によるシーブブロ
ック11の昇降径路を挟んで、一対のガイドスリーブ1
7を取付け、このガイドスリーブ17にはその内部でテ
レスコピックに抜差運動自在なガイドロッド18を組合
わせ、このカイトロッド18の下端に、抑止腕15の角
状端16に向い合って下向きに開口する受は口19を設
ける。A pair of guide sleeves 1 are provided on the lower surface of the club 3, sandwiching the lifting path of the sheave block 11 by the rope transmission system 7.
7 is attached to the guide sleeve 17, and a guide rod 18 that can be telescopically moved in and out is assembled inside the guide sleeve 17, and a downward opening is provided at the lower end of this kite rod 18, facing the square end 16 of the restraining arm 15. The receiver is provided with an opening 19.
図中20はガイドロッド18を保持するようにガイドス
リーブ17から延長した継スリーブ、21はガイドスリ
ーブ17の取付はスリーブ、22は補強アングルである
。In the figure, 20 is a joint sleeve extending from the guide sleeve 17 to hold the guide rod 18, 21 is a sleeve to which the guide sleeve 17 is attached, and 22 is a reinforcing angle.
ガイドスリーブ17とガイドロッド18とは、以上のべ
たところにおいて、抑止腕16の一方が吊荷に働く水平
力Fにより傾いても何らの抵抗を示さないが、この発明
ではとくにガイドスリーブ17内宅゛ガイドロツド18
の上端と、中継スリーブ21の仕切り板23とにそれそ
゛れヨークを設けて、この例で流体圧カシリンダ、ピス
トン組立体よりなる緩衝器24を装着しである。As described above, the guide sleeve 17 and the guide rod 18 do not show any resistance even if one of the restraining arms 16 is tilted by the horizontal force F acting on the suspended load. Guide rod 18
A yoke is provided at the upper end of the relay sleeve 21 and at the partition plate 23 of the relay sleeve 21, and in this example, a shock absorber 24 consisting of a hydraulic cylinder and piston assembly is attached.
緩衝器24はたとえば第2図に模式で示すようにピスト
ン25の一方向移動を逆止弁26により自由にならしめ
、反対向きの移動に際しオリフィス27による液圧減衰
力を生じるようにシリンダ28と組合わせて、上記受は
口19に対して角状端16の上昇の際に、上記減衰力を
発生させるようにするわけである。For example, as schematically shown in FIG. 2, the shock absorber 24 is connected to a cylinder 28 so that the movement of the piston 25 in one direction is made free by a check valve 26, and a hydraulic damping force is generated by an orifice 27 when the piston 25 moves in the opposite direction. In combination, the receiver causes the damping force to be generated when the corner end 16 is raised relative to the mouth 19.
従ってフック9に吊下げた吊荷の質量w /gに対して
たとえばクラブ3の起動に基く加速度αが鋤くことによ
る水平力1により抑止腕15の角状端16が片側で受口
19と衝合した際に、上記の減衰力により緩徐な抵抗を
生じて、クラブ3自体に過大な荷重が作用するのを防ぎ
つつ出荷の揺動を効果的に抑制することができる。Therefore, the horizontal force 1 caused by the acceleration α based on the activation of the club 3, for example, is applied to the mass w/g of the hanging load suspended from the hook 9, and the angular end 16 of the restraining arm 15 connects to the socket 19 on one side. When the clubs collide, the damping force creates a gentle resistance, and it is possible to effectively suppress the rocking during shipping while preventing an excessive load from acting on the club 3 itself.
ここにシーブブロック11は、上記クラブ3の起動の際
に上記した関係位置にまで吊揚げておくことがもちろん
必要であり、このような関係位置は、たとえばリミット
スイッチ(図示せず)などの慣用手段で簡便に制御し得
るので、くわしくのべる必要はない。Of course, it is necessary for the sheave block 11 to be hoisted to the above-mentioned position when starting the club 3, and such a position can be controlled by a conventional device such as a limit switch (not shown). Since it can be easily controlled by means, there is no need to explain it in detail.
第3図に示したもう一つの実施例ではとく【こガイドス
リーブ17の内部に、ガイドロッド18に/
対して締付けばね力を与えるブレーキシュー29と、押
下げ力を加えるスラストばね30とを配設し緩衝器とし
て働かゼる。なお31はブレーキばねでありこのブレー
キシュー29で発生する摩擦力とスラストはね30の反
力が振れを止める力となって振れを減衰させることとし
たほかは第1図の場合とほぼ同様である。In another embodiment shown in FIG. 3, a brake shoe 29 that applies a tightening spring force to/against the guide rod 18 and a thrust spring 30 that applies a downward force are arranged inside the guide sleeve 17. It works as a shock absorber. Reference numeral 31 is a brake spring, which is almost the same as the case shown in Fig. 1, except that the friction force generated by the brake shoe 29 and the reaction force of the thrust spring 30 act as a force to stop the vibration and dampen the vibration. be.
ここにガイドロッド18は単純な丸、角棒であってもよ
いが図のように上方へ向けてテーパを付けておくと、上
方移動での摩擦抵抗の漸増を来すのでガイドロッド18
の摩耗に拘わらず制動性能を有利に接続し得る。なお図
中32は調整ネジである。Here, the guide rod 18 may be a simple round or square bar, but if it is tapered upward as shown in the figure, the frictional resistance will gradually increase during upward movement, so the guide rod 18
Braking performance can be advantageously improved regardless of wear. Note that 32 in the figure is an adjustment screw.
片側のカイトロッド18に上記減衰作用を生じるとき、
他側のガイドロッドはスラストばねで押下げられるので
、若しスラストばね30が締イ」け力に対し著しく強す
ぎると、却って振れを増大させるように働之ので、この
スラストばね30は、締付は力つまり雛擦抵抗に打勝つ
程度にとどめることにより、スラストはね30による押
下げ力は摩擦抵抗によりほぼ消費され、振れの増大を来
すうれいなしにガイドロッド18は抑止腕16に追従す
るのみとなる。When the above-mentioned damping effect is produced on one side of the kite rod 18,
The guide rod on the other side is pushed down by a thrust spring, so if the thrust spring 30 is too strong for the tightening force, it will work to increase the deflection, so this thrust spring 30 By limiting the attachment force to an extent that overcomes the chick rubbing resistance, the pushing down force by the thrust spring 30 is almost consumed by the frictional resistance, and the guide rod 18 follows the restraining arm 16 without causing an increase in deflection. It will only be done.
娠れが逆の状態になると、ガイドロッド18の働きは、
図の左右で反対に、やはり振れの減衰を司る。When the tension is reversed, the function of the guide rod 18 is as follows.
On the left and right sides of the figure, it also controls vibration damping.
従って7ツク9に吊下げた吊荷の質ff1W /Qに対
してたとえばクラブ3の起動に基く加速度αが働くこと
による水平力Fにより抑止腕15の角状端16が片側で
受口1つと衝合した側での減衰力により緩徐な抵抗を生
じて、クラブ3自体に過大な荷重が作用するのを防ぎつ
つ吊荷のJjt動を効果的に抑止することかできる。Therefore, due to the horizontal force F caused by the acceleration α based on the activation of the club 3, the angular end 16 of the restraining arm 15 has one socket on one side. A slow resistance is generated by the damping force on the abutting sides, and it is possible to effectively suppress the Jjt movement of the suspended load while preventing an excessive load from acting on the club 3 itself.
」ズ上クラブ3の横行移動の際における吊荷の揺動抑制
について説明をしたが第1図、第3図の紙面直角方向に
お(ブるガーダ2の走行に際してその向きに生じる吊荷
の揺動抑制のため、紙面前後しこ第1図で左右の関係配
置で示したところに準じた配備を行い得るのは云うまで
もない。Although we have explained how to suppress the swinging of the suspended load during the lateral movement of the top club 3, we have explained that the vibration of the suspended load that occurs in the direction perpendicular to the paper plane of FIGS. 1 and 3 (when the girder 2 moves) Needless to say, in order to suppress rocking, the arrangement can be carried out in accordance with the arrangement shown in the left and right relationship in FIG.
かくしてこの発明によれば、クレーンの吊持ち移動架構
について格別な補強改造を加える必要なくして、該吊持
ち移動架構の起動または停止に基く正、負加速度で吊荷
に働く水平力に由来した吊荷の揺動を、該水平力の減衰
、吸収に役立つ緩衝器の組込みにより、有効に抑制する
ことかでき、りlノーンの自動操縦にも、有利に供用す
ることができるわけである。Thus, according to the present invention, it is possible to eliminate the need for special reinforcing modifications to the lifting and moving frame of a crane, and to eliminate the need for any special reinforcing modifications to the lifting and moving frame of the crane. By incorporating a shock absorber that helps attenuate and absorb the horizontal force, the swinging of the load can be effectively suppressed, and the system can be advantageously used for autopilot operation.
の実施例を示す正面図、 第2図は緩衝器の断面図である。A front view showing an example of FIG. 2 is a sectional view of the buffer.
1・・・工゛場建家 2・・・ガータ3・・・ク
ラブ(吊持ち移動架構)
7・・・ロープ伝動系
11・・・フックつきシーブブロック
15・・・抑止腕 16・・・角状端17・・
・ガイドスリーブ 18・・・ガイドロッド19・・・
受は口 24.29−30・・・緩衝器、特許
出願人 川崎製鉄株式会社1... Factory building 2... Garter 3... Club (suspended moving frame) 7... Rope transmission system 11... Sheave block with hook 15... Restraining arm 16... Square end 17...
・Guide sleeve 18... Guide rod 19...
24.29-30...buffer, patent applicant Kawasaki Steel Corporation
Claims (1)
走行うレーンのガーダ上でこれに敷設した軌道に沿い横
行するクラブ、またはこれに類似づ−る吊持ち移動架構
の下面に、該架構上に架設したロープ伝動系によるフッ
クつきシーブブロックの昇降径路を挟んで少なくとも一
対のカイトスリーブを取付け、このガイドスリーブに対
しテレスコビイツクに抜差し移動自在なガイドロンドに
はその下端で下向ぎに開口する受【プロを設け、この受
は口に面する上向き角状端をもつ少なくとも一対の抑止
腕を、上記シーブブロックに取付け、ガイドスリーブの
内部に緩衝器を配設したことを特徴とする、クレーンの
吊荷振れ止め装置。[Scope of Claims] 1. A club or a similar suspension that runs along a track laid on the girder of an overhead lane that runs along a track laid on the girder of a factory building. At least a pair of kite sleeves are installed on the lower surface of the movable frame, sandwiching the lifting path of the sheave block with hooks by the rope transmission system installed on the frame, and the guide rod, which can be telescopically inserted into and removed from the guide sleeve, is equipped with a kite sleeve. A receiver is provided which opens downward at the lower end, and this receiver has at least a pair of restraining arms with upwardly facing angular ends facing the mouth, and is attached to the sheave block, and a buffer is disposed inside the guide sleeve. A crane hanging load resting device, which is characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4246083A JPS59172382A (en) | 1983-03-16 | 1983-03-16 | Center rest device for hung load of crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4246083A JPS59172382A (en) | 1983-03-16 | 1983-03-16 | Center rest device for hung load of crane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59172382A true JPS59172382A (en) | 1984-09-29 |
Family
ID=12636679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4246083A Pending JPS59172382A (en) | 1983-03-16 | 1983-03-16 | Center rest device for hung load of crane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59172382A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05132941A (en) * | 1991-11-06 | 1993-05-28 | Koichi Uemura | Open shield method and concrete segment used therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670289A (en) * | 1979-11-07 | 1981-06-12 | Kawasaki Steel Co | Method of stopping vibration of hung load |
-
1983
- 1983-03-16 JP JP4246083A patent/JPS59172382A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670289A (en) * | 1979-11-07 | 1981-06-12 | Kawasaki Steel Co | Method of stopping vibration of hung load |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05132941A (en) * | 1991-11-06 | 1993-05-28 | Koichi Uemura | Open shield method and concrete segment used therefor |
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