JPH06234479A - Exchange method for elevator main rope - Google Patents
Exchange method for elevator main ropeInfo
- Publication number
- JPH06234479A JPH06234479A JP5021398A JP2139893A JPH06234479A JP H06234479 A JPH06234479 A JP H06234479A JP 5021398 A JP5021398 A JP 5021398A JP 2139893 A JP2139893 A JP 2139893A JP H06234479 A JPH06234479 A JP H06234479A
- Authority
- JP
- Japan
- Prior art keywords
- main rope
- group
- main
- ropes
- rope
- 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
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はエレベーター主ロープの
交換方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of replacing an elevator main rope.
【0002】[0002]
【従来の技術】従来のエレベーターは主ロープの交換を
行う場合、例えばロープ式のエレベーターでは、特開昭
62−264182号公報に示されるように、乗りかご
およびつり合い重りを昇降路内の部材にチエーンブロツ
ク等を用いて仮吊りして、全ての既設主ロープを新設主
ロープに取り換えていた。また油圧エレベーターでは、
ピツト内に配置した支持部材で乗りかごの下部を支持
し、この状態で既設主ロープの両端のシンブルロツドを
取外し、昇降路の上方部に構成した中間作業床からプラ
ンジヤープーリに掛けられている既設主ロープを外し、
これを新設主ロープに取り換え、新設主ロープの両端の
シンブルロツドをそれぞれ所定の個所に連結していた。2. Description of the Related Art When a main rope is replaced in a conventional elevator, for example, in a rope type elevator, as shown in Japanese Patent Laid-Open No. 264182/1987, a car and a counterweight are used as members in a hoistway. All the existing main ropes were replaced with new main ropes by temporarily suspending them using a chain block. In hydraulic elevators,
The lower part of the car is supported by the support member arranged in the pit, and in this state, the thimble rods at both ends of the existing main rope are removed, and the existing work floor that is hung on the upper part of the hoistway is hung on the plunger pulley. Remove the main rope,
This was replaced with a new main rope, and the thimble rods at both ends of the new main rope were connected to predetermined locations.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来のエレベーター主ロープの交換方法によつて主
ロープを交換した後、速やかに運転を再開することにな
るが、新設主ロープに乗りかごおよびつり合い重りの荷
重を加えると、初期の段階で比較的大きな初期伸びが発
生する。その後、長期間の使用による伸びが加わつて全
体の伸びが所定の長さに達したとき、今度は、伸びに相
当する長さを切り詰める必要がある。従つて、主ロープ
の交換時に初期伸び分を切り詰めることができるなら
ば、その後、伸びに相当する長さを切り詰める作業を省
略することができる。However, after the main rope is replaced by such a conventional elevator main rope replacement method, the operation is promptly restarted. When a counterweight is applied, a relatively large initial elongation occurs at the initial stage. After that, when elongation due to long-term use is added and the total elongation reaches a predetermined length, it is necessary to cut the length corresponding to the elongation. Therefore, if the initial extension can be cut off when the main rope is replaced, then the work of cutting down the length corresponding to the extension can be omitted.
【0004】本発明の目的は、比較的短時間に主ロープ
の初期伸び分を除去することができるエレベーター主ロ
ープの交換方法を提供することにある。An object of the present invention is to provide a method for replacing an elevator main rope, which can remove the initial elongation of the main rope in a relatively short time.
【0005】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために、少なくともその一端を昇降体に連結した複
数本の主ロープを有して成り、既設の上記主ロープを新
設の上記主ロープに交換するエレベーター主ロープの交
換方法において、上記複数本の主ロープを少なくとも二
つのグループに分け、油圧移動装置によつて第一グルー
プの主ロープの見かけ上の長さを第二グループの主ロー
プの長さよりも短くして上記昇降体を支持した状態で、
第二グループの既設の主ロープを新設の主ロープに交換
し、その後、上記第二グループの主ロープで上記昇降体
を支持した状態で、上記第一グループの主ロープを交換
するようにすると共に、上記第一グループの新設主ロー
プと上記第二グループの新設主ロープで、主ロープ全本
数よりも少ない本数の複数の組合せを作り、各組合せに
よる上記新設主ロープの反昇降体側を上記油圧移動装置
によつて引つ張り力を作用させてそれぞれ上記昇降体を
支持し、上記各新設主ロープに初期伸びを生じさせた
後、上記各新設主ロープの反昇降体側を連結するように
したことを特徴とする。In order to achieve the above object, the present invention comprises a plurality of main ropes, at least one end of which is connected to an elevating body, and the existing main rope is a newly installed main rope. In the method of replacing the main ropes of the elevator, the plurality of main ropes are divided into at least two groups, and the apparent length of the main ropes of the first group is changed by the hydraulic moving device. With the rope shorter than the length and supporting the lifting body,
Replace the existing main rope of the second group with a new main rope, and then replace the main rope of the first group with the lifting body supported by the main rope of the second group. , The first main rope of the new group and the new main rope of the second group make a plurality of combinations of the number of main ropes smaller than the total number of main ropes, and the hydraulic movement of the anti-elevator side of the new main rope by each combination. A pulling force is applied by a device to support the elevating bodies respectively, and after the initial extension of each new main rope, the anti-elevation body side of each new main rope is connected. Is characterized by.
【0006】[0006]
【作用】本発明によるエレベーター主ロープの交換方法
は、上述のように元々備えられている主ロープのうちの
第一グループを用いて乗りかご等の昇降体を支持した状
態で、第二グループの主ロープを交換し、次いで、交換
した第二グループの新設主ロープで昇降体を支持した状
態で、第一グループの主ロープを交換するようにしたた
め、ロープ式エレベーターでは、乗りかごおよびつり合
い重りを昇降路内に仮吊りすることなく、また、油圧エ
レベータでは乗りかごを支持する特別の支持部材をピツ
ト内に持ち込むことなく、主ロープの交換を容易に行う
ことができる。また、その後、第一グループの新設主ロ
ープと第二グループの新設主ロープで、主ロープ全本数
よりも少ない本数の複数の組合せを作り、各組合せによ
る新設主ロープの反昇降体側に引つ張り力を作用させて
それぞれ昇降体を支持して各新設主ロープの初期伸びを
生じさせ、その後、初期伸び分を吸収するようにして各
新設主ロープの反昇降体側を連結するようにしたため、
比較的短時間につまり交換と同時に初期伸び分を除去す
ることができる。The method of exchanging the elevator main rope according to the present invention is such that the first group of the main ropes originally provided as described above is used to support the elevators such as the car and the like of the second group. Since the main ropes were replaced, and then the main ropes of the first group were replaced while the lifts were supported by the new main ropes of the replaced second group, in the rope-type elevator, the car and the counterweight were The main rope can be easily replaced without temporarily suspending it in the hoistway and without bringing a special support member for supporting the car into the pit in the hydraulic elevator. Also, after that, with the new main rope of the first group and the new main rope of the second group, make a plurality of combinations of the number of main ropes that is less than the total number of main ropes, and pull the tension on the anti-elevator side of the new main rope by each combination By applying a force to support the elevators respectively and cause the initial extension of each new main rope, and after that, the anti-elevator side of each new main rope is connected so as to absorb the initial extension,
The initial elongation can be removed in a relatively short time, that is, at the same time as the replacement.
【0007】[0007]
【実施例】以下、本発明の実施例を図面によつて説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【0008】図11は本発明のエレベーター主ロープの
交換方法を採用するエレベーターの側面図であり、昇降
路1内を昇降する懸垂体、例えば乗りかご2およびつり
合い重り3間は、両端に固設されたソケツト7および9
を図示しないピンを介してシンブルロツド8および10
に連結した複数本の主ロープ4によつて連結され、この
主ロープ4の中間は昇降路1の上部に設けられた機械室
5の巻上機6に巻き掛けられている。またシンブルロツ
ド8および10は、それぞればね30および31を介し
て乗りかご2の枠体2aやつり合い重り3の枠体3a等
の懸垂体に連結されている。尚、主ロープ4は3本の主
ロープ4a,4b,4cから成るものとして以下説明す
る。FIG. 11 is a side view of an elevator adopting the method of replacing the elevator main rope according to the present invention, in which a suspension body that moves up and down in the hoistway 1, for example, the car 2 and the counterweight 3 is fixed to both ends. Sockets 7 and 9
Through the pins (not shown) to the thimble rods 8 and 10
Are connected by a plurality of main ropes 4 connected to each other, and the middle of the main ropes 4 is wound around a hoist 6 of a machine room 5 provided in the upper part of the hoistway 1. Further, the thimble rods 8 and 10 are connected to suspension bodies such as the frame body 2a of the car 2 and the frame body 3a of the counterweight 3 via springs 30 and 31, respectively. The main rope 4 will be described below as comprising three main ropes 4a, 4b and 4c.
【0009】図3は本発明の一実施例によるエレベータ
ー主ロープの交換方法に用いる油圧移動装置を示す斜視
図で、つり合い重り3の枠体3aにその上端を当接して
配置する筒状の支持部材19の下端に、座金22を介し
て油圧移動装置13を当接連結している。座金22の一
端22aは支持部材19の内面側に嵌合し、また他端2
2bは油圧移動装置13の一般的にはシリンダーである
固定部材14の外面側に嵌合している。他の実施例では
座金22の一端を支持部材19あるいは固定部材14の
いずれか一方に固定すると共に、その他端をいずれか他
方と嵌合するように構成しても良い。油圧移動装置13
は、固定部材14である中空シリンダー内に可摺動的に
可動部材15のピストン15aが配置されて構成され、
油圧移動装置13の中心部を貫通した棒状連結部材11
は可動部材15に連結されている。つまり、棒状連結部
材11にはねじ部が形成されており、このねじ部に螺合
したナツト18aを可動部材15の下部側に設けてい
る。従つて、可動部材15が下方向へ駆動されると、ナ
ツト18aを介して棒状連結部材11も同方向へ駆動さ
れるが、可動部材15の上方向への移動は棒状連結部材
11と無関係に行うことができる。固定部材14と可動
部材15とで形成された油圧室16には、図示しない油
圧発生源に接続されたホース20が連結されている。ま
た油圧移動装置13の下端に位置する固定部材14に
は、有底の張設雇17の上端が当接されており、この張
設雇17は棒状連結部材11を貫通する底部と、ナツト
18aに対応して形成した窓部17aとを有し、底部の
下方には棒状連結部材11と螺合したナツト18bが設
けられている。油圧移動装置13の中心部を貫通した棒
状連結部材11の上端部には長ナツト12の下半分が螺
合され、この長ナツト12の上半分は、図11に示した
シンブルロツド10の下端に螺合される。FIG. 3 is a perspective view showing a hydraulic moving device used in a method of replacing an elevator main rope according to an embodiment of the present invention. The cylindrical support is arranged with its upper end abutting on the frame 3a of the counterweight 3. The hydraulic moving device 13 is abutted and connected to the lower end of the member 19 via a washer 22. One end 22a of the washer 22 is fitted to the inner surface side of the support member 19, and the other end 2
2b is fitted on the outer surface side of a fixed member 14 which is generally a cylinder of the hydraulic moving device 13. In another embodiment, one end of the washer 22 may be fixed to either the support member 19 or the fixing member 14, and the other end may be fitted to the other. Hydraulic moving device 13
Is constructed by slidably disposing a piston 15a of a movable member 15 in a hollow cylinder that is a fixed member 14,
A rod-shaped connecting member 11 that penetrates the center of the hydraulic moving device 13.
Is connected to the movable member 15. That is, a threaded portion is formed on the rod-shaped connecting member 11, and a nut 18 a screwed to this threaded portion is provided on the lower side of the movable member 15. Therefore, when the movable member 15 is driven downward, the rod-shaped connecting member 11 is also driven in the same direction via the nut 18a, but the upward movement of the movable member 15 is independent of the rod-shaped connecting member 11. It can be carried out. A hose 20 connected to a hydraulic pressure generation source (not shown) is connected to a hydraulic pressure chamber 16 formed by the fixed member 14 and the movable member 15. Further, the fixed member 14 located at the lower end of the hydraulic moving device 13 is in contact with the upper end of the bottomed tensioning member 17, and the tensioning member 17 penetrates the rod-shaped connecting member 11 and the nut 18a. And a window 18a formed corresponding to the above, and a nut 18b screwed with the rod-shaped connecting member 11 is provided below the bottom. The lower half of the long nut 12 is screwed onto the upper end of the rod-shaped connecting member 11 penetrating the center of the hydraulic moving device 13, and the upper half of the long nut 12 is screwed onto the lower end of the thimble rod 10 shown in FIG. Are combined.
【0010】このような油圧移動装置13を用いて主ロ
ープ4a,4b,4cの交換を行う場合、図11に示す
ように乗りかご2を適当な高さの位置に停止させ、かご
内から作業者は後述する作業を行う。すなわち、主ロー
プ4a,4b,4cを二つのグループに分け、第一グル
ープの一本の主ロープ4aの端部に設けられたシンブル
ロツド10aの自由端に、図1に示すように棒状連結部
材11の上端部を突合せ、長ナツト12をシンブルロツ
ド10aに螺合させて、シンブルロツド10aと棒状連
結部材11間を連結する。さらに、シンブルロツド10
aに支持部材19を挿通させて上端を枠体3aに当接さ
せると共に、棒状連結部材11に油圧移動装置13の中
心部の貫通孔を挿通させ、ナツト18aを棒状連結部材
11の下端から螺合して可動部材15に棒状連結部材1
1を当接連結する。この状態で、油圧発生源21によつ
て油圧移動装置13の油圧室16に高圧油を作用させる
と、図3に示した可動部材15は下方に駆動され、ナツ
ト18aを介して同方向に連結された棒状連結部材11
も下方に駆動され、図1および図4の状態となり、乗り
かご2の荷重を第一グループの主ロープ4aに加えてい
く。このとき、油圧移動装置13の固定部材14と、支
持部材19間には、座金22が設けられていて、常に両
者間を良好に接続するため、これら両者間のずれによつ
て棒状連結部材11と可動部材15間でかじりが発生す
ることがなく、作業を容易に行うことができる。When the main ropes 4a, 4b and 4c are exchanged by using the hydraulic moving device 13 as described above, the car 2 is stopped at an appropriate height as shown in FIG. The person performs the work described below. That is, the main ropes 4a, 4b, 4c are divided into two groups, and at the free end of the thimble rod 10a provided at the end of one main rope 4a of the first group, the rod-shaped connecting member 11 is provided as shown in FIG. The upper ends of the nuts are butted and the long nut 12 is screwed into the thimble rod 10a to connect the thimble rod 10a and the rod-shaped connecting member 11. Furthermore, thimble rod 10
The support member 19 is inserted into the a and the upper end is brought into contact with the frame 3a, and the rod-shaped connecting member 11 is inserted into the through hole at the center of the hydraulic moving device 13, and the nut 18a is screwed from the lower end of the rod-shaped connecting member 11. The movable member 15 and the rod-shaped connecting member 1
1 is abutted and connected. In this state, when high-pressure oil is applied to the hydraulic chamber 16 of the hydraulic moving device 13 by the hydraulic pressure generation source 21, the movable member 15 shown in FIG. 3 is driven downward and is coupled in the same direction via the nut 18a. Bar-shaped connecting member 11
1 is driven downward, and the state of FIGS. 1 and 4 is reached, and the load of the car 2 is added to the main ropes 4a of the first group. At this time, a washer 22 is provided between the fixed member 14 of the hydraulic moving device 13 and the support member 19, and the two members are always connected well, so that the rod-shaped connecting member 11 is misaligned between them. There is no galling between the movable member 15 and the movable member 15, and the work can be easily performed.
【0011】次に、ナツト18bを回しながら張設雇1
7を上方へ移動させて、図5の状態にする。その後、油
圧発生源21によつて油圧移動装置13の油圧室16へ
の高圧油を回収する。すると油圧移動装置13の保持力
はなくなるが、棒状連結部材11に螺合したナツト18
bは、支持部材19、油圧移動装置13の固定部材1
4、張設雇17を介して枠体2aに連結されているた
め、棒状連結部材11を同状態に保持する。その後、図
5に示す張設雇17の窓部17aから手を入れて、ナツ
ト18aを回して油圧移動装置13の可動部材15を上
方へ押し上げ、油圧移動装置13のみを図3の状態に復
帰させて図6の状態となる。この図6の状態で、再び油
圧発生源21によつて油圧移動装置13の油圧室16に
高圧油を作用させると、図6に示した可動部材15はさ
らに下方に駆動され、ナツト18aを介して同方向に連
結された棒状連結部材11もさらに下方に駆動され、図
2のように第二グループの主ロープ4b,4cを弛めて
つり合い重り3の荷重を第一グループの主ロープ4aで
支持する。上述した油圧移動装置13の繰り返し動作
は、可動部材15の1回分のストロークで充分な棒状連
結部材11の移動距離が得られないために行つたが、可
動部材15の1回分のストロークで充分な棒状連結部材
11の移動距離が得られるなら繰り返す必要はない。Next, while the nut 18b is being rotated, the erection work 1
7 is moved upward to the state shown in FIG. After that, the high-pressure oil to the hydraulic chamber 16 of the hydraulic moving device 13 is collected by the hydraulic pressure generation source 21. Then, the holding force of the hydraulic moving device 13 is lost, but the nut 18 screwed to the rod-shaped connecting member 11 is used.
b is a supporting member 19 and a fixing member 1 of the hydraulic moving device 13.
4, the rod-shaped connecting member 11 is held in the same state because it is connected to the frame 2a via the tension member 17. After that, the operator puts his / her hand through the window portion 17a of the tension worker 17 shown in FIG. 5 and turns the nut 18a to push up the movable member 15 of the hydraulic moving device 13 to return only the hydraulic moving device 13 to the state of FIG. Then, the state shown in FIG. 6 is obtained. In this state of FIG. 6, when the high pressure oil is applied to the hydraulic chamber 16 of the hydraulic moving device 13 again by the hydraulic pressure generation source 21, the movable member 15 shown in FIG. 6 is driven further downward and via the nut 18a. The rod-shaped connecting member 11 connected in the same direction is driven further downward, and the main ropes 4b and 4c of the second group are loosened to load the balance weight 3 by the main rope 4a of the first group as shown in FIG. To support. The above-described repeated operation of the hydraulic moving device 13 is performed because one stroke of the movable member 15 cannot obtain a sufficient movement distance of the rod-shaped connecting member 11, but one stroke of the movable member 15 is sufficient. It is not necessary to repeat as long as the moving distance of the rod-shaped connecting member 11 can be obtained.
【0012】第二グループの主ロープ4b,4cが弛ん
だ状態となつたときに油圧発生源21の作動を停止さ
せ、他の主ロープ4b,4cをシンブルロツド10b,
10cから取外して、その端部に新設主ロープを連結
し、反対側の端部を巻き取つて行くと、新設主ロープの
先端側は図11の巻上機6を越えて既設主ロープ4b,
4cと同様の状態となる。その後、既設主ロープ4b,
4cと新設主ロープ4B,4C間を切り離し、初期の状
態のように新設主ロープの一端に固設されたソケツト7
b,7cを図示しないピンを介してシンブルロツド8
b,8cに連結すると共に、他端に固設されたソケツト
9b,9cを図示しないピンを介してシンブルロツド1
0b,10cに連結し、このシンブルロツド10bおよ
び10cをそれぞればね31bおよび31cを除いた状
態でつり合い重り3の枠体3aに通し、この端部に、図
7に示すようにそれぞれ上述した油圧移動装置13と同
一構造の油圧移動装置13B,13Cを連結する。その
後、第二グループの新設主ロープ4B,4Cのそれぞれ
の油圧移動装置13B,13Cを作動して第一グループ
の主ロープ4aの場合と同様に新設主ロープ4B,4C
に張力を加えて軸方向長を縮めると共に、乗りかご2の
荷重を第二グループの新設主ロープ4B,4Cに掛け
る。次いで、第一グループの主ロープ4aに連結した油
圧移動装置13内の圧油を油圧発生源21に戻して上述
の操作と逆の操作を行つて可動部材15を後退させ、第
一グループの主ロープ4aの端部に設けられたシンブル
ロツド10aを介して棒状連結部材11に螺合するナツ
ト18a,18bを取り外し、この油圧移動装置13を
取り外すと共に、長ナツト12を弛めてシンブルロツド
10aから棒状連結部材11を取り外し、これによつて
第二グループの新設主ロープ4B,4Cの交換作業を終
了する。このように主ロープの全本数よりも少ない2本
の新設主ロープ4B,4Cによつて乗りかご2を一時的
に支持し、同一構造の油圧移動装置13B,13Cで同
圧を加えるため、この新設主ロープ4B,4Cは等しい
初期伸びを生じる。When the main ropes 4b, 4c of the second group are in a loosened state, the operation of the hydraulic pressure generation source 21 is stopped, and the other main ropes 4b, 4c are connected to the thimble rod 10b,
When the new main rope is removed from 10c, the new main rope is connected to the end, and the opposite end is wound up, the tip side of the new main rope crosses the hoisting machine 6 of FIG.
The state is similar to that of 4c. After that, the existing main rope 4b,
4c and the new main ropes 4B and 4C are separated from each other, and the socket 7 is fixed to one end of the new main rope as in the initial state.
b, 7c through a pin (not shown) for thimble rod 8
The sockets 9b, 9c fixed to the other ends of the thimble rod 1 are connected to the b, 8c through a pin (not shown).
0b and 10c, and the thimble rods 10b and 10c are passed through the frame 3a of the counterweight 3 with the springs 31b and 31c removed, and at the ends thereof, as shown in FIG. The hydraulic moving devices 13B and 13C having the same structure as 13 are connected. Then, the hydraulic moving devices 13B and 13C of the new main ropes 4B and 4C of the second group are operated to operate the new main ropes 4B and 4C in the same manner as the case of the main rope 4a of the first group.
Is applied to reduce the axial length, and the load of the car 2 is applied to the new main ropes 4B and 4C of the second group. Then, the pressure oil in the hydraulic movement device 13 connected to the main ropes 4a of the first group is returned to the hydraulic pressure generation source 21, and the operation reverse to the above operation is performed to retract the movable member 15 to move the main member of the first group. The nuts 18a, 18b screwed to the rod-shaped connecting member 11 are removed via the thimble rod 10a provided at the end of the rope 4a, the hydraulic moving device 13 is removed, and the long nut 12 is loosened to connect the thimble rod 10a to the rod-shaped connection. The member 11 is removed, whereby the replacement work of the new main ropes 4B, 4C of the second group is completed. Thus, the car 2 is temporarily supported by the two new main ropes 4B, 4C, which are less than the total number of main ropes, and the same pressure is applied by the hydraulic moving devices 13B, 13C having the same structure. The new main ropes 4B and 4C have the same initial elongation.
【0013】第一グループの主ロープ4aの交換は、上
述の状態から新設主ロープ4Aに交換し、その後、図1
と同様に再度油圧移動装置13を取り付けて図8の状態
にする。この状態で、油圧移動装置13と油圧移動装置
13Bを作動して第一グループの新設主ロープ4Aと第
二グループの新設主ロープ4Bとに張力を加えて軸方向
長を縮めると共に、乗りかご2の荷重を新設主ロープ4
A,4Bに加える。このときも上述の場合と同様に、主
ロープの全本数よりも少ない2本の新設主ロープ4A,
4Bによつて乗りかご2を一時的に支持し、同一構造の
油圧移動装置13,13Bで同圧を加えるため、この新
設主ロープ4A,4Bはほぼ等しい初期伸びを生じる。
その後、図9に示すように油圧移動装置13C内の圧油
を油圧発生源21に戻して油圧移動装置13Cを取外
し、シンブルロツド10cをばね31cを介してつり合
い重り3の枠体3aに連結する。The replacement of the main ropes 4a of the first group is carried out by replacing the above-mentioned state with the new main ropes 4A, and thereafter, as shown in FIG.
Similarly, the hydraulic movement device 13 is attached again and the state of FIG. 8 is obtained. In this state, the hydraulic moving device 13 and the hydraulic moving device 13B are operated to apply tension to the new main ropes 4A of the first group and the new main ropes 4B of the second group to shorten the axial length, Load the new main rope 4
Add to A and 4B. At this time, as in the case described above, the two new main ropes 4A, which are less than the total number of main ropes,
Since the car 2 is temporarily supported by 4B and the same pressure is applied by the hydraulic moving devices 13 and 13B having the same structure, the new main ropes 4A and 4B have substantially equal initial elongations.
Thereafter, as shown in FIG. 9, the pressure oil in the hydraulic moving device 13C is returned to the hydraulic pressure generating source 21 to remove the hydraulic moving device 13C, and the thimble rod 10c is connected to the frame 3a of the counterweight 3 via the spring 31c.
【0014】その後、今度は図10に示すように新設主
ロープ4Cのシンブルロツド10cに図1と同様に再度
油圧移動装置13Cを取り付け、新設主ロープ4A,4
Cに連結した両油圧移動装置13,13Cを作動して第
一グループの新設主ロープ4Aと第二グループの新設主
ロープ4Cとに張力を加えて軸方向長を縮めると共に、
乗りかご2の荷重を新設主ロープ4A,4Cに加える。
このときも上述の場合と同様に、主ロープの全本数より
も少ない2本の新設主ロープ4A,4Cによつて乗りか
ご2を一時的に支持し、同一構造の油圧移動装置13で
同圧を加えるため、この新設主ロープ4A,4Cはほぼ
等しい初期伸びを生じる。この状態で、新設主ロープ4
Bの油圧移動装置13Bを除去し、そのシンブルロツド
10bをばね31bを介してつり合い重り3の枠体3a
に連結する。その後は、既設の主ロープ4aに、連結し
た油圧移動装置13を取外した場合と同様に、2本の新
設主ロープ4A,4Cに連結した両油圧移動装置13,
13Cを取外し、各新設主ロープ4A,4B,4Cの張
力を調整して作業を終える。従つて、全ての新設主ロー
プ4A,4B,4Cを同時に交換した場合、その後、時
間の経過と共に初期伸びと通常の伸びが生じて所定の長
さに達すると、改めて切り詰めを行う必要があるが、初
期伸びを上述したように交換時に調整してしまうため、
そのような作業を省略することができる。Thereafter, as shown in FIG. 10, the hydraulic transfer device 13C is attached to the thimble rod 10c of the new main rope 4C again in the same manner as in FIG.
By operating both hydraulic moving devices 13 and 13C connected to C to apply tension to the new main rope 4A of the first group and the new main rope 4C of the second group to shorten the axial length,
Add the load of the car 2 to the new main ropes 4A, 4C.
At this time, as in the case described above, the car 2 is temporarily supported by the two new main ropes 4A and 4C, which are less than the total number of main ropes, and the same pressure is applied by the hydraulic moving device 13 having the same structure. Therefore, the new main ropes 4A and 4C have almost equal initial elongations. In this state, the new main rope 4
The hydraulic moving device 13B of B is removed, and its thimble rod 10b is balanced through the spring 31b to the frame 3a of the weight 3.
Connect to. After that, similarly to the case where the hydraulic moving device 13 connected to the existing main rope 4a is removed, both hydraulic moving devices 13 connected to the two new main ropes 4A and 4C are connected.
13C is removed, the tension of each new main rope 4A, 4B, 4C is adjusted, and the work is finished. Therefore, when all the new main ropes 4A, 4B, 4C are replaced at the same time, after that, when the initial extension and the normal extension occur with the passage of time and the predetermined length is reached, it is necessary to perform the trimming again. Since the initial elongation is adjusted at the time of replacement as described above,
Such work can be omitted.
【0015】尚、上記の実施例ではロープ式のエレベー
ターについて説明したが、油圧エレベーターにおいても
同様に行うことができる。また主ロープの全本数も3本
の場合に限らず適用でき、いずれにしても主ロープの全
本数よりも少なくとも1本少ない状態の複数の組合せを
作り、各組合せによる新設主ロープの反昇降体側、つま
り上述した実施例では乗りかごの反対側に引つ張り力を
作用させてそれぞれ昇降体を支持し、これによつて交換
作業中に各新設主ロープに初期伸びを生じさせ、その
後、各新設主ロープの反昇降体側を連結するようにした
ため、比較的短時間に、また交換と同時に初期伸び分を
生じさせて除去することができる。Although the rope type elevator has been described in the above embodiments, the same can be applied to a hydraulic elevator. The total number of main ropes is not limited to three and can be applied. In any case, a plurality of combinations with at least one less than the total number of main ropes are made, and the new main rope on the side opposite to the elevator That is, in the above-described embodiment, a tensioning force is applied to the opposite side of the car to support the respective lifting bodies, which causes the initial extension of each new main rope during replacement work, and then each Since the anti-elevator side of the new main rope is connected, the initial extension can be generated and removed in a relatively short time and upon replacement.
【0016】[0016]
【発明の効果】以上説明したように本発明のエレベータ
ー主ロープの交換方法によれば、元々備えられている主
ロープのうちの第一グループを用いて油圧移動装置によ
つて乗りかごを支持した状態で、第二グループの主ロー
プを交換し、次いで、交換した第二グループの主ロープ
を用いて油圧移動装置によつて乗りかごを支持した状態
で、上記第一グループの主ロープを交換するようにした
ため、大がかりな支持部材によつて乗りかごを支持する
必要がなくなり、簡単かつ容易に主ロープの交換を行う
ことができる。また主ロープの全本数よりも少ない状態
の複数の組合せを作り、各組合せによる新設主ロープの
反昇降体側に油圧移動装置によつて引つ張り力を作用さ
せてそれぞれ昇降体を支持して各新設主ロープの初期伸
びを生じさせ、その後、各新設主ロープの反昇降体側を
連結するようにしたため、主ロープの交換と初期伸び吸
収のために同じ油圧移動装置を用いることができ、また
交換と同時に初期伸び分を生じさせて除去することがで
きる。As described above, according to the method of replacing the elevator main rope of the present invention, the passenger car is supported by the hydraulic moving device using the first group of the main ropes originally provided. In the state, the main ropes of the second group are exchanged, and then the main ropes of the first group are exchanged while the car is supported by the hydraulic transfer device using the exchanged main ropes of the second group. Therefore, it is not necessary to support the car with a large-scale support member, and the main rope can be replaced easily and easily. Also, make a plurality of combinations in which the number of main ropes is less than the total number of main ropes, and apply a tensioning force to the anti-elevator side of the newly-installed main rope by each combination to support the elevators by supporting each elevator. Since the initial extension of the new main ropes is generated and then the anti-elevator side of each new main rope is connected, the same hydraulic transfer device can be used for replacement of the main ropes and absorption of the initial extension. At the same time, the initial elongation can be generated and removed.
【図1】本発明のエレベーター主ロープの交換方法によ
る作業初期状態を示すエレベーターの正面図である。FIG. 1 is a front view of an elevator showing an initial state of work by a method of replacing an elevator main rope according to the present invention.
【図2】本発明のエレベーター主ロープの交換方法によ
る異なる作業初期状態を示すエレベーターの正面図であ
る。FIG. 2 is a front view of the elevator showing different initial work states according to the method of replacing the elevator main rope of the present invention.
【図3】本発明のエレベーター主ロープの交換方法に用
いる主ロープ油圧牽引装置の部分断面斜視図である。FIG. 3 is a partial cross-sectional perspective view of a main rope hydraulic traction device used in the method for replacing an elevator main rope according to the present invention.
【図4】図3に示した主ロープ油圧牽引装置の他の状態
を示す斜視図である。FIG. 4 is a perspective view showing another state of the main rope hydraulic traction device shown in FIG.
【図5】図3に示した主ロープ油圧牽引装置のさらに他
の状態を示す斜視図である。5 is a perspective view showing still another state of the main rope hydraulic traction device shown in FIG. 3. FIG.
【図6】図3に示した主ロープ油圧牽引装置のさらに他
の状態を示す斜視図である。FIG. 6 is a perspective view showing still another state of the main rope hydraulic traction device shown in FIG.
【図7】本発明のエレベーター主ロープの交換方法によ
る他の異なる作業初期状態を示すエレベーターの正面図
である。FIG. 7 is a front view of an elevator showing another different initial work state according to the method of replacing the elevator main rope of the present invention.
【図8】本発明のエレベーター主ロープの交換方法によ
る他の異なる作業初期状態を示すエレベーターの正面図
である。FIG. 8 is a front view of the elevator showing another different initial work state according to the method of replacing the elevator main rope of the present invention.
【図9】本発明のエレベーター主ロープの交換方法によ
る他の異なる作業初期状態を示すエレベーターの正面図
である。FIG. 9 is a front view of an elevator showing another different initial work state according to the method of replacing the elevator main rope of the present invention.
【図10】本発明のエレベーター主ロープの交換方法に
よる他の異なる作業初期状態を示すエレベーターの正面
図である。FIG. 10 is a front view of an elevator showing another different initial work state according to the method of replacing the elevator main rope of the present invention.
【図11】本発明を適用する一般的なエレベーターの側
面図である。FIG. 11 is a side view of a general elevator to which the present invention is applied.
2 乗りかご 4a,4b,4c 主ロープ 4A,4B,4C 新設主ロープ 10a,10b,10c シンブルロツド 11 棒状連結部材 13,13B,13C 油圧移動装置 2 Cars 4a, 4b, 4c Main ropes 4A, 4B, 4C New main ropes 10a, 10b, 10c Thimble rods 11 Rod-shaped connecting members 13, 13B, 13C Hydraulic moving device
Claims (1)
複数本の主ロープを有して成り、既設の上記主ロープを
新設の上記主ロープに交換するエレベーター主ロープの
交換方法において、上記複数本の主ロープを少なくとも
二つのグループに分け、油圧移動装置によつて第一グル
ープの主ロープの見かけ上の長さを第二グループの主ロ
ープの長さよりも短くして上記昇降体を支持した状態
で、第二グループの既設の主ロープを新設の主ロープに
交換し、その後、上記第二グループの主ロープで上記昇
降体を支持した状態で、上記第一グループの主ロープを
交換するようにすると共に、上記第一グループの新設主
ロープと上記第二グループの新設主ロープで、主ロープ
全本数よりも少ない本数の複数の組合せを作り、各組合
せによる上記新設主ロープの反昇降体側を上記油圧移動
装置によつて引つ張り力を作用させてそれぞれ上記昇降
体を支持し、上記各新設主ロープに初期伸びを生じさせ
た後、上記各新設主ロープの反昇降体側を連結するよう
にしたことを特徴とするエレベーター主ロープの交換方
法。1. An elevator main rope replacement method comprising a plurality of main ropes, at least one end of which is connected to a lifting body, wherein the existing main rope is replaced with a new main rope. The main ropes of the above are divided into at least two groups, and the apparent length of the main ropes of the first group is made shorter than the length of the main ropes of the second group by the hydraulic moving device to support the lifting body. Then, replace the existing main rope of the second group with a new main rope, and then replace the main rope of the first group with the lifting body supported by the main rope of the second group. In addition, make a plurality of combinations of the new main ropes of the first group and the new main ropes of the second group, the number of which is smaller than the total number of main ropes. The anti-elevation body side of the rope is applied with a pulling force by the hydraulic moving device to support the elevating body respectively, and after the initial extension is generated in each of the new main ropes, An elevator main rope replacement method characterized in that the side opposite to the lifting body is connected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5021398A JP3035102B2 (en) | 1993-02-09 | 1993-02-09 | How to replace the main elevator rope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5021398A JP3035102B2 (en) | 1993-02-09 | 1993-02-09 | How to replace the main elevator rope |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06234479A true JPH06234479A (en) | 1994-08-23 |
JP3035102B2 JP3035102B2 (en) | 2000-04-17 |
Family
ID=12053953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5021398A Expired - Lifetime JP3035102B2 (en) | 1993-02-09 | 1993-02-09 | How to replace the main elevator rope |
Country Status (1)
Country | Link |
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JP (1) | JP3035102B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012106863A (en) * | 2010-10-21 | 2012-06-07 | Hitachi Building Systems Co Ltd | Device and system for adjusting rope tension in elevator |
CN103183268A (en) * | 2011-12-28 | 2013-07-03 | 株式会社日立建筑*** | Rope tension adjusting device and rope tension adjusting system |
CZ306797B6 (en) * | 2015-12-09 | 2017-07-12 | Vysoká Škola Báňská-Technická Univerzita Ostrava | A tension equalizer in lift carrying ropes |
CN111465570A (en) * | 2017-12-13 | 2020-07-28 | 西马格特宝有限责任公司 | Fixing and tensioning device for guide ropes of a conveying installation |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2849288B2 (en) | 1992-09-03 | 1999-01-20 | 株式会社日立ビルシステム | Elevator main rope traction device |
-
1993
- 1993-02-09 JP JP5021398A patent/JP3035102B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012106863A (en) * | 2010-10-21 | 2012-06-07 | Hitachi Building Systems Co Ltd | Device and system for adjusting rope tension in elevator |
CN103183268A (en) * | 2011-12-28 | 2013-07-03 | 株式会社日立建筑*** | Rope tension adjusting device and rope tension adjusting system |
JP2013136438A (en) * | 2011-12-28 | 2013-07-11 | Hitachi Building Systems Co Ltd | Rope tension adjusting device and rope tension adjusting system |
CN103183268B (en) * | 2011-12-28 | 2016-08-24 | 株式会社日立建筑*** | Cord tension adjusting device and rope tension adjust system |
CZ306797B6 (en) * | 2015-12-09 | 2017-07-12 | Vysoká Škola Báňská-Technická Univerzita Ostrava | A tension equalizer in lift carrying ropes |
CN111465570A (en) * | 2017-12-13 | 2020-07-28 | 西马格特宝有限责任公司 | Fixing and tensioning device for guide ropes of a conveying installation |
Also Published As
Publication number | Publication date |
---|---|
JP3035102B2 (en) | 2000-04-17 |
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