JPS612696A - Eccentric load preventive device for lifter - Google Patents
Eccentric load preventive device for lifterInfo
- Publication number
- JPS612696A JPS612696A JP12160184A JP12160184A JPS612696A JP S612696 A JPS612696 A JP S612696A JP 12160184 A JP12160184 A JP 12160184A JP 12160184 A JP12160184 A JP 12160184A JP S612696 A JPS612696 A JP S612696A
- Authority
- JP
- Japan
- Prior art keywords
- lifter
- seat plate
- lifting
- eccentric load
- frame
- 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
Links
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Braking Arrangements (AREA)
- Types And Forms Of Lifts (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】
〔産業上の利用分野〕
この発明は、リフターの偏心荷重防止装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an eccentric load prevention device for a lifter.
一般にスラブ等の太重貴荷物を受承し、昇降させるリフ
ターは、昇降フレームをリフタ一本体に活ってボールネ
ジジヤツキあるいは油圧シリンダー等の昇降ロッドで昇
降作動するようにされている。In general, a lifter that receives and raises/lowers heavy and heavy loads such as slabs uses a lifting frame as the main body of the lifter, and is moved up and down by a lifting rod such as a ball screw jack or a hydraulic cylinder.
ところで、該昇降ロッドは通常軸力のみを考慮して設計
・製作されているので、ラジアル荷重（積荷１り、モー
メント荷重に対しては非常に弱い。そこで、重量物を載
置した昇降フレームを昇降させる際に昇降ロッドに軸力
のみが作用するためには、重量物を偏心させずに昇降フ
レームに載せなければならないが、重量物自体が変形し
ていたり、また昇降フレームに載置させる際に重量物が
偏心してしまうことが多分にあり、実際には不可能であ
る。By the way, the lifting rod is usually designed and manufactured considering only the axial force, so it is very weak against radial loads (1 load and moment load. In order for only axial force to act on the lifting rod when lifting or lowering, the heavy object must be placed on the lifting frame without eccentricity, but if the heavy item itself is deformed or when placed on the lifting frame. In many cases, heavy objects become eccentric, and this is actually impossible.
従って、従来のりフタ−においては、昇降ロッドの軸径
を太くしたり等しなければならず、昇降装置の大型化お
よびメンテナンスの煩雑化を免れなかった。Therefore, in the conventional lift lid, the diameter of the shaft of the lifting rod must be increased, which inevitably increases the size of the lifting device and complicates maintenance.
この発明は以上の問題点に鑑み創案されたもので、！量
物が偏心して載置されても、昇降口ラドに悪影響をおよ
ばずことなく昇降作業を円滑に行うことができるリフタ
ー偏心荷重防止装置を捷供することを目的とする。This invention was created in view of the above problems. To provide a lifter eccentric load prevention device capable of smoothly performing lifting and lowering work without adversely affecting an elevator doorway even if a heavy object is placed eccentrically.
この発明の偏心荷重防止装置は、昇降ロッドによシ昇降
フレームを昇降させるリフターに採用されるものである
。そしてその構成は、昇降ロッドの上端面に複数の鋼球
を配して座板を設けると共に、昇降ロッド上端面および
座板下面には鋼球の半径より大きい曲率を有する受座を
付設し、座板の上面とこれに対向する昇降フレームの下
面とは球面とされ、かつ密接・離隔自在であることを特
徴としている。The eccentric load prevention device of the present invention is employed in a lifter that raises and lowers an elevating frame using an elevating rod. The structure is such that a seat plate is provided with a plurality of steel balls arranged on the upper end surface of the lifting rod, and a catch having a radius of curvature larger than the radius of the steel balls is attached to the upper end surface of the lifting rod and the lower surface of the seat plate. The upper surface of the seat plate and the lower surface of the elevating frame opposite thereto are spherical, and are characterized in that they can be brought into close contact with each other or separated from each other.
以下、この発明を図面に示す実施例に基いて説明する。 The present invention will be explained below based on embodiments shown in the drawings.
第１図〜第４図はこの発明による偏心荷重防止装置を採
用したスラブリフター１を示すもので、第１図は側面図
、第２図は平面図、第３図は正面図、第４図は第１図の
ｌ−１ｍ断面図である。1 to 4 show a slab lifter 1 employing an eccentric load prevention device according to the present invention, in which FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. is a sectional view taken along line l-1m in FIG. 1.
スラブリフター１は、基礎上に設置された本体２に沿っ
て昇降自在に取付けられた昇降フレーム６によシ、台車
２１より運ばれてきたスラブ加を受は取るものである（
第１図参照）。本体２の内側壁にはガイドブレート４が
設けられ、昇降フレーム６の本体２側面にはガイドロー
ラ５が取付けられておシ、かつ、昇降フレーム６の内壁
面に摺接するガイドフレーム３が本体２に架設され、昇
降フレーム６作動時の摩擦を少なくすると共に昇降フレ
ーム６にかかる水平力を本体２で受けるようにして、昇
降機にかかる負荷を減らしている。The slab lifter 1 receives the load on the slab carried from the trolley 21 by means of an elevating frame 6 attached to the main body 2 installed on the foundation so as to be able to rise and fall freely (
(See Figure 1). A guide plate 4 is provided on the inner wall of the main body 2, a guide roller 5 is attached to the side of the main body 2 of the elevating frame 6, and a guide frame 3 that slides in contact with the inner wall surface of the elevating frame 6 is attached to the main body 2. The main body 2 receives the horizontal force applied to the lift frame 6, thereby reducing the load on the lift.
実施例では昇降フレーム６を、同調作動される２個の昇
降機で支持するようにしている。この昇降機にはポール
ネジジヤツキ９を用いており、モータ７により駆動され
る。そして左右の駆動シャフトはクラッチ８を介して繋
がれており、左右２つの昇降フレーム６・６は連動して
昇降でき、また、クラッチ８の切離し作動で個別に昇降
できるようになっている。また、本体２には昇降フレー
ム支持部３Ａが設けられておシ、昇降フレーム６は昇降
時以外にはこの昇降フレーム支持部３Ａに支持されるの
で、作動時を除きポールネジジヤツキ９に負荷がかかる
ことはない。In the embodiment, the elevating frame 6 is supported by two elevating machines operated in synchronization. This elevator uses a pole screw jack 9 and is driven by a motor 7. The left and right drive shafts are connected via a clutch 8, and the two left and right elevating frames 6, 6 can be raised and lowered in conjunction with each other, and can also be raised and lowered individually by disengaging the clutch 8. In addition, the main body 2 is provided with an elevating frame support portion 3A, and the elevating frame 6 is supported by the elevating frame support portion 3A except when the elevating frame is being lifted or lowered. It doesn't cost anything.
第５図、第６図はりフタ−偏心荷重防止装置１７を示す
もので、第５図は第４図のＸ部拡大図かつ第６図の■−
■線展開断面図、第６図は第４図のＹ視拡太図である。Figures 5 and 6 show the beam lid eccentric load prevention device 17. Figure 5 is an enlarged view of the X section in Figure 4 and - - in Figure 6.
(2) Line developed sectional view, FIG. 6 is an enlarged Y-view enlarged view of FIG. 4.
第５図において、昇降フレーム６はガイドフレーム３に
案内されており、ポールネジジヤツキ９は最縮小位置に
ある。In FIG. 5, the elevating frame 6 is guided by the guide frame 3, and the pole screw jack 9 is at the most contracted position.
ポールネジジヤツキ９の先端には７ランジ状のジヤツキ
頭部軸受ｌＯが溶接固定されており、このジヤツキ頭部
軸受１０の上面には複数の鋼球１１が配され、座板１３
が設けられている。そして鋼球１１と接するジヤツキ頭
部軸受１０上面および座板１３の下面には鋼球１１の径
より大きい曲率を有する受座戎が句設されている。A seven-lung-shaped jack head bearing 10 is welded and fixed to the tip of the pole screw jack 9. A plurality of steel balls 11 are arranged on the upper surface of this jack head bearing 10, and a seat plate 13
is provided. A strike plate having a curvature larger than the diameter of the steel ball 11 is provided on the upper surface of the jack head bearing 10 and the lower surface of the seat plate 13 in contact with the steel ball 11.
また、該座板１３の上面には球面軸受１４が、昇降フレ
ーム６下面対向位置には球面軸受座１５がそれぞれ設け
られており、ポールネジジヤツキ９を上昇作動させると
、球面軸受１４と球面軸受座１５とは面接触するよう構
成されている。A spherical bearing 14 is provided on the upper surface of the seat plate 13, and a spherical bearing seat 15 is provided on the lower surface of the lifting frame 6. When the pole screw jack 9 is moved upward, the spherical bearing 14 and the spherical surface It is configured to make surface contact with the bearing seat 15.
また、前記ジヤツキ頭部軸受１０、座板１３、球面軸受
座１５の外周近傍にはスリーブ状のカックー１６が取付
けられておシ、鋼球１１と受座戎、および球面軸受１４
と球面軸受座１５は完全にシールされている。Further, a sleeve-shaped cuckoo 16 is attached near the outer periphery of the jack head bearing 10, the seat plate 13, and the spherical bearing seat 15.
and the spherical bearing seat 15 are completely sealed.
機械構造上、左右のガイドプレート４・４、ガイドロー
ラ５・５間には隙間があるため、昇降フレーム６が上昇
する時に受承荷重が偏心していれば、昇降フレーム６は
偏心している側に傾動することとなる。従って、昇降フ
レーム６とポールネジジヤツキ９が直結されている場合
には、前記傾動作用力が横力としてポールネジジヤツキ
９に直接伝達される。Due to the mechanical structure, there is a gap between the left and right guide plates 4, 4 and guide rollers 5, 5, so if the received load is eccentric when the lifting frame 6 rises, the lifting frame 6 will move to the eccentric side. It will tilt. Therefore, when the lifting frame 6 and the pole screw jack 9 are directly connected, the tilting force is directly transmitted to the pole screw jack 9 as a lateral force.
そこでこの発明ではポールネジジヤツキ９の上端面（ジ
ヤツキ頭部軸受の上端面）に鋼球１１を配しころがり接
触とすることによりポールネジジヤツキ９に作用する横
力を小さくしている。Therefore, in the present invention, the lateral force acting on the pole screw jack 9 is reduced by disposing a steel ball 11 on the upper end surface of the pole screw jack 9 (the upper end surface of the jack head bearing) to make rolling contact.
鋼球１１は、鋼球１１の半径より大きい曲率を有する受
座ｎで保持されているので、自動調心性があシ、鋼球１
１および受座比の横力吸収作用によりポールネジジヤツ
キ９に作用する横力はきわめて小さくなる。Since the steel ball 11 is held by a seat n having a curvature larger than the radius of the steel ball 11, self-aligning property is maintained, and the steel ball 1
1 and the lateral force absorption effect of the seat ratio, the lateral force acting on the pole screw jack 9 becomes extremely small.
なお、実施例として連続鋳造機から搬出された高温スラ
ブを受承するスラブリフターへの適用例を示したが、本
発明は大重量物を受承し昇降する１１Ａのりフタ−に適
用可能である。Although an example of application to a slab lifter that receives high-temperature slabs discharged from a continuous casting machine has been shown as an example, the present invention can also be applied to a 11A glue lid that receives and lifts heavy objects. .
この発明は以上の構成からなｐ１昇降ロンドの上端面に
複数の鋼球を配して座板を設け、昇降ロッドの上端面お
よび座板下面には鋼球の半径よ）大きい曲率を有する受
座を設けであるので、鋼球および受座の横力吸収作用に
より昇降ロッドに作用する横力は、非常に小さい。また
、同様の理由により、昇降途中で昇降フレームの傾き方
向が変化しても、昇降ロッドに作用するモーメント荷重
はきわめて小さいものとなる。This invention provides a seat plate with a plurality of steel balls arranged on the upper end surface of the p1 elevating rod having the above structure, and the upper end surface of the elevating rod and the lower surface of the seat plate have a curvature larger than the radius of the steel balls. Since the seat is provided, the lateral force acting on the lifting rod is extremely small due to the lateral force absorption effect of the steel ball and the catch. Furthermore, for the same reason, even if the inclination direction of the elevating frame changes during elevation, the moment load acting on the elevating rod is extremely small.
従ってスラブ等の大重量物を偏心して受承しても、昇降
ロッドに悪影響をおよぼすことなく昇降作業を長期間円
滑に行うことができる。Therefore, even if a heavy object such as a slab is received eccentrically, the lifting and lowering work can be carried out smoothly for a long period of time without adversely affecting the lifting rod.
第１図はスラブ台車との位置関係を示すスラブリフター
の側面図、第２図はその平面図、第３図は同じく正面図
、第４図は同じく第１図のＩ−ＩＭｌ１５’ｉ面図、第
５図はこの発明のりフタ−偏心荷重防止装置の一実施例
を示すもので、第４図のＸ部拡大図でありかつ第６図の
■−■線展開展開断面図６図は第４図のＹ視拡太図であ
る。
１・・・・・・スラブリフター、２・・・・・・本体、
３・・・・・ガイドフレーム、４・・・・・・ガイドプ
レート、５・・ガイドローラ、６・・・・・昇降フレー
ム、７・・・・・・モータ、８・・・・・・クラッチ、
９・・・・・・ポールネジジヤツキ、１０・・・・・・
ジヤツキ頭部軸受、１１・・・・・・鋼球、戎・・・・
・・受座、１３・・・・・・座板、１４・・・・・・球
面軸受、１５球面軸受座、１６・・・・・・カバー、１
７・・・・・・リフター偏心荷重防止装置、加・・・・
・・スラブ、２１・・・・・・台車。Figure 1 is a side view of the slab lifter showing its positional relationship with the slab truck, Figure 2 is its plan view, Figure 3 is its front view, and Figure 4 is the I-IMl15'i plane view of Figure 1. , FIG. 5 shows an embodiment of the lid eccentric load prevention device of the present invention, and is an enlarged view of the X part in FIG. FIG. 4 is an enlarged Y-view diagram of FIG. 4. 1...Slab lifter, 2...Main body,
3... Guide frame, 4... Guide plate, 5... Guide roller, 6... Lifting frame, 7... Motor, 8... clutch,
9...Pole screw jack, 10...
Jacket head bearing, 11... Steel ball, Hole...
...Catch seat, 13... Seat plate, 14... Spherical bearing, 15 Spherical bearing seat, 16... Cover, 1
7...Lifter eccentric load prevention device, addition...
... Slab, 21 ... Trolley.
Claims (1)
おいて、 昇降ロッドの上端面に複数の鋼球を配して座板を設ける
と共に、昇降ロッド上端面および座板下面には鋼球の半
径より大きい曲率を有する受座を付設し、座板の上面と
これに対向する昇降フレームの下面とは球面とされ、か
つ密接・離隔自在であることを特徴とするリフター偏心
荷重防止装置。[Claims] In a lifter that raises and lowers a lifting frame using a lifting rod, a seat plate is provided with a plurality of steel balls arranged on the upper end surface of the lifting rod, and steel balls are provided on the upper end surface of the lifting rod and the lower surface of the seat plate. A lifter eccentric load prevention device, characterized in that a catch plate having a curvature larger than the radius is attached, the upper surface of the seat plate and the lower surface of the lifting frame opposing the seat plate are spherical surfaces, and can be brought into close contact with each other or separated from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12160184A JPS612696A (en) | 1984-06-13 | 1984-06-13 | Eccentric load preventive device for lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12160184A JPS612696A (en) | 1984-06-13 | 1984-06-13 | Eccentric load preventive device for lifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS612696A true JPS612696A (en) | 1986-01-08 |
| JPH0345000B2 JPH0345000B2 (en) | 1991-07-09 |
Family
ID=14815289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12160184A Granted JPS612696A (en) | 1984-06-13 | 1984-06-13 | Eccentric load preventive device for lifter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS612696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012093571A1 (en) * | 2011-01-07 | 2012-07-12 | 有限会社池田機械設計 | Device with adjustable receiving surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS498182A (en) * | 1972-05-10 | 1974-01-24 | ||
| JPS4924117U (en) * | 1972-06-01 | 1974-03-01 | ||
| JPS5224682U (en) * | 1975-08-11 | 1977-02-21 | ||
| JPS5522647A (en) * | 1978-08-07 | 1980-02-18 | Kuraray Co Ltd | Carbonylation of olefinic compound |
-
1984
- 1984-06-13 JP JP12160184A patent/JPS612696A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS498182A (en) * | 1972-05-10 | 1974-01-24 | ||
| JPS4924117U (en) * | 1972-06-01 | 1974-03-01 | ||
| JPS5224682U (en) * | 1975-08-11 | 1977-02-21 | ||
| JPS5522647A (en) * | 1978-08-07 | 1980-02-18 | Kuraray Co Ltd | Carbonylation of olefinic compound |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012093571A1 (en) * | 2011-01-07 | 2012-07-12 | 有限会社池田機械設計 | Device with adjustable receiving surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0345000B2 (en) | 1991-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |