JP2014218757A - Jig for exchanging core steel of wire rope and method for exchanging core steel of wire rope - Google Patents
Jig for exchanging core steel of wire rope and method for exchanging core steel of wire rope Download PDFInfo
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- JP2014218757A JP2014218757A JP2013097551A JP2013097551A JP2014218757A JP 2014218757 A JP2014218757 A JP 2014218757A JP 2013097551 A JP2013097551 A JP 2013097551A JP 2013097551 A JP2013097551 A JP 2013097551A JP 2014218757 A JP2014218757 A JP 2014218757A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F7/00—Twisting wire; Twisting wire together
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/16—Auxiliary apparatus
- D07B7/18—Auxiliary apparatus for spreading or untwisting ropes or cables into constituent parts for treatment or splicing purposes
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
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Abstract
Description
本発明は、エレベータのかごを昇降させる主ロープ等に用いられるワイヤロープの芯綱交換治具、及びワイヤロープの芯綱交換方法に関する。 The present invention relates to a wire rope core rope replacement jig used for a main rope or the like for raising and lowering an elevator car, and a wire rope core rope replacement method.
従来、エレベータの主ロープを構成するワイヤロープの端末処理において、ワイヤロープの端末をソケットで折り返し、そこに溶けた金属を流し込んで固定するようにしている。このために、ナイロン製の芯綱を備えているものでは高温度に耐えられない。そこで、この端末処理を行う部分については、ナイロン製の芯綱から麻製の芯綱に交換する必要があった。従来、このような作業は作業員の手作業にてワイヤロープの複数本のストランド、例えば８本のストランドを必要となる長さまでばらし、ナイロン製の芯綱を切断して、麻製の芯綱の取り付け作業を行い、ばらしたストランドの撚り戻しを行っていた。 Conventionally, in the end processing of the wire rope constituting the main rope of the elevator, the end of the wire rope is folded back with a socket, and the molten metal is poured into the socket and fixed. For this reason, the thing provided with the core made of nylon cannot withstand high temperatures. Therefore, it was necessary to exchange the end treatment portion from a nylon core to a hemp core. Conventionally, such work is performed manually by an operator, and a plurality of strands of wire rope, for example, eight strands, are separated to a required length, a nylon core rope is cut, and a hemp core rope is cut. The twisted strands were untwisted.
なお従来、撚り線のバラシ治具として、撚り線をばらし、シール材を充填する技術が特許文献１に提案されている。 Conventionally, Patent Document 1 proposes a technique for separating a stranded wire and filling a sealing material as a stranding jig for the stranded wire.
従来のワイヤロープの端末処理のための芯綱の交換作業においては、例えば８本からなるストランドを手作業にて１本ずつばらす必要があり、また、ばらしたストランドを開いた状態に保持させてナイロン製の芯綱を切断する作業、切断したナイロン製の芯綱に代えて麻製の芯綱を取り付ける作業、また、ばらしたストランドを元の状態に撚り戻す作業のそれぞれを手作業で行っていた。したがって、この芯綱の交換作業は、煩雑で作業能率の向上を見込めない問題があるとともに、芯綱交換後のワイヤロープの端末の品質が作業者の熟練度に依存する問題があった。また、同一の作業者であっても、作業ごとに芯綱の交換後のワイヤロープの端末の品質が異なりやすく、このワイヤロープの端末の芯綱交換後の品質を均一に保つことは困難であった。 In the conventional work of replacing the core rope for the end treatment of the wire rope, for example, it is necessary to manually separate eight strands one by one, and keep the loose strands in an open state. The work of cutting the nylon core, the work of attaching the hemp core instead of the cut nylon core, and the work of twisting the loose strand back to the original state are performed manually. It was. Therefore, the replacement work of the core rope has a problem that the work efficiency is not expected to be improved, and the quality of the end of the wire rope after the replacement of the core rope depends on the skill level of the operator. In addition, even for the same operator, the quality of the wire rope end after the core rope replacement is easily different for each work, and it is difficult to keep the quality of the wire rope end after the core rope replacement uniform. there were.
なお、特許文献１に開示された技術では、ワイヤロープの端部がばらされないようにしながらワイヤロープの途中の部分をばらし、そのばらした部分にシール材を充填するための治具であり、エレベータの主ロープを構成するワイヤロープの端末の芯綱の交換が可能なばらし作業が行えるものではなかった。 The technique disclosed in Patent Document 1 is a jig for separating an intermediate portion of the wire rope while preventing the end portion of the wire rope from being separated, and filling the separated portion with a sealing material. It was not possible to carry out a disassembly work in which the core rope of the end of the wire rope constituting the main rope could be replaced.
本発明は、前述した従来技術における実情からなされたもので、その目的は、作業者の熟練度に依存することなく、かつ容易に、ワイヤロープの端末処理のための芯綱の交換を行うことができるワイヤロープの芯綱交換治具、及びワイヤロープの芯綱交換方法を提供することにある。 The present invention has been made based on the actual situation in the prior art described above, and its purpose is to easily replace the core rope for the end processing of the wire rope without depending on the skill level of the operator. An object of the present invention is to provide a wire rope core rope replacement jig and a wire rope core rope replacement method.
前記目的を達成するために、本発明に係るワイヤロープの芯綱交換治具は、芯綱と、この芯綱の周りに撚られる複数本のストランドとを有するワイヤロープの前記芯綱を交換するワイヤロープの芯綱交換治具において、前記ワイヤロープの前記芯綱の交換に際し、前記芯綱が挿入され、挿入された前記芯綱を保持する芯綱用穴と、前記複数のストランドがそれぞれ挿入され、挿入された前記ストランドのそれぞれを保持する複数のストランド用穴とを有し、前記芯綱が前記芯綱用穴に挿入保持され、合せて前記ストランドのそれぞれが該当する前記ストランド用穴に挿入保持された状態で、前記芯綱用穴に挿入保持された前記芯綱を中心に回転操作される操作体から成ることを特徴としている。 In order to achieve the above object, a core rope replacement jig for a wire rope according to the present invention replaces the core rope of a wire rope having a core rope and a plurality of strands twisted around the core rope. In the core rope replacement jig of the wire rope, the core rope is inserted when the core rope of the wire rope is replaced, and the core rope hole for holding the inserted core rope and the plurality of strands are respectively inserted. A plurality of strand holes for holding each of the inserted strands, wherein the core rope is inserted and held in the core rope hole, and each of the strands corresponds to the corresponding strand hole. It is characterized by comprising an operating body that is rotated around the core rope inserted and held in the core rope hole in the inserted and held state.
また、前記目的を達成するために、本発明に係るワイヤロープの芯綱交換方法は、前記ワイヤロープの芯綱交換治具を用いて、前記ワイヤロープの前記芯綱を交換するワイヤロープの芯綱交換方法において、前記ワイヤロープの端部をばらして、前記ワイヤロープの前記芯綱を前記操作体の前記芯綱用穴に挿入して保持させるとともに、前記ワイヤロープの前記ストランドのそれぞれを前記ストランド用穴に挿入して保持させ、この状態で前記操作体を、前記ストランドの巻回方向とは逆方向に回転させて前記複数のストランドのそれぞれをさらにばらしながら、前記ワイヤロープの端部から離れる方向に前記芯綱の所定の切断必要長さまで移動させ、前記操作体を、前記所定の切断必要長さまで移動させた状態で、前記操作体を挟んで前記ワイヤロープの前記端部側とは反対側に位置する前記芯綱の部分を切断器で切断し、この切断によって除去可能となった芯綱部分を前記操作体の前記芯綱用穴から抜き取り、次に、交換に用いられる芯綱部分を、前記操作体の前記芯綱用穴に挿入し、前記交換に用いられる芯綱部分の端部を、切断によって残された芯綱部分の端部に当接させ、この状態で前記操作体を、前記ストランドの前記巻回方向に回転させながら、前記ワイヤロープの前記端部方向に移動させて前記ストランドを撚り戻すようにしたことを特徴としている。 In order to achieve the above object, the wire rope core rope replacement method according to the present invention includes a wire rope core exchange means for exchanging the core rope of the wire rope using the wire rope core rope replacement jig. In the rope replacement method, the ends of the wire rope are separated, the core rope of the wire rope is inserted and held in the core rope hole of the operating body, and each of the strands of the wire rope is Inserted into and held in a strand hole, and in this state, while rotating the operating body in a direction opposite to the winding direction of the strand to further separate each of the plurality of strands, from the end of the wire rope The core is moved in a direction away from the core rope to a predetermined required cutting length, and the operating body is moved to the predetermined required cutting length, with the operating body sandwiched therebetween. The core rope portion located on the opposite side of the end of the ear rope is cut with a cutter, and the core rope portion that can be removed by this cutting is extracted from the core rope hole of the operating body, Then, the core rope part used for replacement is inserted into the core rope hole of the operating body, and the end part of the core rope part used for the exchange is applied to the end part of the core rope part left by cutting. In this state, the operating body is moved in the direction of the end of the wire rope while being rotated in the winding direction of the strand, and the strand is twisted back.
本発明に係るワイヤロープの芯綱交換治具、及びワイヤロープの芯綱交換方法によれば、把持した操作体を回転操作させることによって、操作体に挿入保持させたストランドをばらし、または撚り戻して、ワイヤロープの端末処理に好適な芯綱に交換できるので、作業者の熟練度に依存することなく、かつ容易に、ワイヤロープの端末処理のための芯綱の交換を行うことができる。これにより本発明は、従来に比べてワイヤロープの芯綱交換作業の能率を向上させることができ、また、芯綱交換後のワイヤロープ端末の均一で精度の高い品質の確保を実現させることができる。 According to the wire rope core rope replacement jig and the wire rope core rope replacement method according to the present invention, by rotating the gripped operation body, the strand inserted and held in the operation body is separated or twisted back. Thus, the core rope suitable for the terminal processing of the wire rope can be exchanged, so that the core rope for the terminal processing of the wire rope can be easily exchanged without depending on the skill level of the operator. As a result, the present invention can improve the efficiency of the wire rope core replacement work as compared with the prior art, and can also ensure the uniform and highly accurate quality of the wire rope terminal after the core rope replacement. it can.
以下、本発明に係るワイヤロープの芯綱交換治具、及びワイヤロープの芯綱交換方法の実施の形態を図面に基づいて説明する。 Hereinafter, embodiments of a wire rope core rope replacement jig and a wire rope core rope replacement method according to the present invention will be described with reference to the drawings.
図１は本発明に係るワイヤロープの芯綱交換治具の一実施形態を示す斜視図、図２は芯綱が交換されるワイヤロープを示す縦断面図、図３は本実施形態に係るワイヤロープの芯綱交換治具の使い方を説明する図で、［Ａ］図は側面図、［Ｂ］図は正面図である。 FIG. 1 is a perspective view showing an embodiment of a wire rope core rope exchanging jig according to the present invention, FIG. 2 is a longitudinal sectional view showing a wire rope in which the core rope is exchanged, and FIG. 3 is a wire according to this embodiment. It is a figure explaining the usage of the rope core replacement jig, [A] figure is a side view, [B] figure is a front view.
図２に示すように、本発明の対象であるワイヤロープ５は、例えばエレベータの主ロープを構成するワイヤロープであり、例えばナイロン製の芯綱７と、この芯綱７の周りに撚られる複数本の鋼線から成るストランド６とを有している。 As shown in FIG. 2, a wire rope 5 that is an object of the present invention is a wire rope that constitutes a main rope of an elevator, for example, and is formed of, for example, a nylon core rope 7 and a plurality of strands twisted around the core rope 7. And a strand 6 made of steel wire.
図１に示すように、本実施形態に係るワイヤロープの交換治具は、回転操作される操作体、例えば外周部の把持が可能な円板状体１から成っている。この円板状体１は、同図１に示すように、ワイヤロープ５の芯綱７の交換に際し、芯綱７が挿入され、挿入された芯綱７を保持する芯綱用穴２と、複数本のストランド８がそれぞれ挿入され、挿入されたストランド８のそれぞれを保持する複数のストランド用穴３とを有している。この円板状体１は、図３に示すように、芯綱７が芯綱用穴２に挿入保持され、合せてストランド６のそれぞれが該当するストランド用穴３に挿入保持された状態で、芯綱用穴２に挿入保持された芯綱７を中心に回転操作されるようになっている。 As shown in FIG. 1, the wire rope exchanging jig according to the present embodiment includes an operating body that is rotated, for example, a disc-like body 1 that can grip an outer peripheral portion. As shown in FIG. 1, the disk-shaped body 1 has a core rope hole 2 for holding the inserted core rope 7 when the core rope 7 is inserted when the core rope 7 of the wire rope 5 is replaced. A plurality of strands 8 are inserted, and a plurality of strand holes 3 for holding the inserted strands 8 are provided. As shown in FIG. 3, the disk-shaped body 1 has a core rope 7 inserted and held in the core rope hole 2, and each strand 6 is inserted and held in the corresponding strand hole 3. The core rope 7 is rotated about the core rope 7 inserted and held in the core rope hole 2.
図１に示すように、円板状体１の中央位置に芯綱用穴２を設け、芯綱用穴２の周囲に複数のストランド用穴３を設けてある。また、複数のストランド用穴３は例えば、芯綱用穴２に近づく側に形成され、径寸法を小さく設定した複数の小径ストランド用穴３ａと、これらの小径ストランド用穴３ａの芯綱用穴２から離れる側である外側に形成され、小径ストランド用穴３ａよりも径寸法を大きく設定した複数の大径ストランド用穴３ｂとを含んでいる。このようにストランド用穴３を、小径ストランド用穴３ａと、大径ストランド用穴３ｂとによって構成することにより、種々の径のワイヤロープにおいて円板状体１を用いて芯綱７の交換を行うことができる。なお、前述した図３の［Ｂ］図では、説明を簡単にするために、円板状体１に小径ストランド用穴３ａのみを描いてある。 As shown in FIG. 1, a core rope hole 2 is provided at the center of the disc-like body 1, and a plurality of strand holes 3 are provided around the core rope hole 2. Further, the plurality of strand holes 3 are formed on the side approaching the core rope hole 2, for example, a plurality of small diameter strand holes 3a having a small diameter dimension, and the core rope holes of these small diameter strand holes 3a And a plurality of large-diameter strand holes 3b which are formed on the outer side which is away from 2 and whose diameter is set larger than that of the small-diameter strand holes 3a. Thus, by forming the strand hole 3 with the small-diameter strand hole 3a and the large-diameter strand hole 3b, the core rope 7 can be replaced by using the disk-like body 1 in various diameter wire ropes. It can be carried out. In FIG. 3B described above, only the small-diameter strand hole 3a is drawn in the disc-like body 1 for the sake of simplicity.
また本実施形態は、図１に示すように、円板状体１の外周部に、この外周部を把持し回転操作する際の円板状体１との係着力を増加させる係着力増加部、例えば等間隔に複数形成された溝４を設けてある。 Further, in the present embodiment, as shown in FIG. 1, the engaging force increasing portion that increases the engaging force with the disc-like body 1 when the outer peripheral portion is gripped and rotated, as shown in FIG. 1. For example, a plurality of grooves 4 formed at equal intervals are provided.
図３に示すように、本実施形態に係る芯綱交換治具を構成する円板状体１の芯綱用穴２にワイヤロープ５の芯綱７を挿入保持させ、ストランド用穴３にワイヤロープ５のストランド６のそれぞれを１本ずつ挿入保持させた状態で、円板状体１を矢印８ａ方向に、または矢印８ｂ方向に、円板状体１の外周部に設けた溝４への把持に伴う係着力を介して回転させながら、円板状体１を矢印９で示すように移動させることにより、ワイヤロープ５をばらすことができ、また撚り戻すことができる。 As shown in FIG. 3, the core rope 7 of the wire rope 5 is inserted and held in the core rope hole 2 of the disc-like body 1 constituting the core rope replacement jig according to the present embodiment, and the wire is inserted into the strand hole 3. With each strand 6 of the rope 5 inserted and held one by one, the disc-like body 1 is inserted into the groove 4 provided in the outer peripheral portion of the disc-like body 1 in the direction of the arrow 8a or in the direction of the arrow 8b. The wire rope 5 can be separated and twisted back by moving the disc-like body 1 as indicated by the arrow 9 while rotating through the engaging force accompanying the gripping.
図４は、本実施形態に係るワイヤロープの芯綱交換治具、すなわち円板状体１を用いて行われるワイヤロープの芯綱交換方法の一実施形態を説明する図で、［Ａ］図はワイヤロープのストランドを撚り戻し、芯綱を切断するまでの作業を説明する図、［Ｂ］図は新しい芯綱に交換して、ワイヤロープのストランドをワイヤロープの端部まで撚る作業を説明する図である。 FIG. 4 is a view for explaining an embodiment of a wire rope core rope replacement method performed by using the wire rope core rope replacement jig according to the present embodiment, that is, the disk-like body 1. Is a diagram explaining the work until the wire rope strands are twisted back and the core rope is cut. [B] Figure is for replacing the new rope rope and twisting the wire rope strands to the end of the wire rope. It is a figure explaining.
円板状体１を用いて行われる本実施形態に係るワイヤロープの芯綱交換方法は、以下のようにしてワイヤロープ５の芯綱７を交換するものである。 The wire rope core rope replacement method according to this embodiment performed using the disk-shaped body 1 is to replace the core rope 7 of the wire rope 5 as follows.
すなわち本実施形態に係るワイヤロープの芯綱交換方法は、はじめに、ワイヤロープ５の端部をわずかにばらして、ワイヤロープ５の芯綱７を円板状体１の芯綱用穴２に挿入して保持させるとともに、ワイヤロープ５のストランド６のそれぞれを円板状体１のストランド用穴３、例えば小径ストランド用穴３ａのそれぞれに挿入して保持させる。この場合、芯綱７の芯綱用穴２への挿入を、ストランド６のストランド用穴３への挿入よりも前にしてもよく、また後にしてもよい。また、ワイヤロープ５の端部のばらしは、芯綱７の芯綱用穴２への挿入、及びストランド６のストランド用穴３への挿入を行える程度の短い長さのばらしで済むことから、作業者の負担を非常に軽減できる。 That is, in the wire rope core replacement method according to the present embodiment, first, the end portion of the wire rope 5 is slightly separated, and the core rope 7 of the wire rope 5 is inserted into the core rope hole 2 of the disc-like body 1. The strands 6 of the wire rope 5 are inserted and held in the strand holes 3 of the disk-shaped body 1, for example, the small-diameter strand holes 3a. In this case, the core rope 7 may be inserted into the core rope hole 2 before or after the strand 6 is inserted into the strand hole 3. Further, since the end of the wire rope 5 is separated from the core rope 7 with a short length enough to insert the core rope 7 into the core rope hole 2 and the strand 6 into the strand hole 3, The burden on the operator can be greatly reduced.
この状態で円板状体１を、ストランド６の巻回方向とは逆方向である図４の［Ａ］図の矢印８ａ方向に回転させて複数のストランド６のそれぞれをさらにばらしながら、ワイヤロープ５の端部から離れる同図４の［Ａ］図の矢印９ａ方向に芯綱７を所定の切断必要長さまで移動させる。 In this state, the disk-shaped body 1 is rotated in the direction of the arrow 8a in FIG. 4A, which is the direction opposite to the winding direction of the strand 6, so that each of the plurality of strands 6 is further separated. The core rope 7 is moved to a predetermined required cutting length in the direction of the arrow 9a in FIG.
円板状体１を、前述の所定の切断必要長さまで移動させた状態で、円板状体１を挟んでワイヤロープ５の前述した端部側とは反対側に位置する芯綱７の部分を、同図４の［Ａ］図に示す切断器１０で切断し、この切断によって除去可能となった芯綱７部分を円板状体１の芯綱用穴２から抜き取る。 The portion of the core rope 7 located on the opposite side of the end of the wire rope 5 with the disc-like body 1 interposed between the disc-like body 1 and the disc-like body 1 being moved to the predetermined required cutting length. 4 is cut with a cutter 10 shown in FIG. 4A, and the portion of the core rope 7 that can be removed by this cutting is extracted from the core rope hole 2 of the disc-like body 1.
次に、同図４の［Ｂ］図に示すように、交換に用いられる芯綱部分７ａを、円板状体１の芯綱用穴２に挿入し、この交換に用いられる芯綱部分７ａの端部を、切断によって残された芯綱７部分の端部に当接させる。例えば交換に用いられる芯綱部分７ａは麻製のものから成っている。 Next, as shown in FIG. 4B, the core rope portion 7a used for replacement is inserted into the core rope hole 2 of the disc-like body 1, and the core rope portion 7a used for this replacement. Is brought into contact with the end portion of the core rope 7 portion left by cutting. For example, the core rope portion 7a used for replacement is made of hemp.
この状態で円板状体１を、ストランド６の巻回方向である同図４の［Ｂ］図の矢印８ｂ方向に回転させながら、ワイヤロープ５の端部方向に、すなわち矢印９ｂ方向に移動させてストランド６を端部まで撚り戻す。これにより、芯綱交換作業は終了する。 In this state, the disk-shaped body 1 is moved in the direction of the end of the wire rope 5, that is, in the direction of the arrow 9 b while rotating in the direction of the arrow 8 b in FIG. 4B which is the winding direction of the strand 6. The strand 6 is twisted back to the end. Thereby, the core rope replacement work is completed.
以上のように、本実施形態に係る円板状体１に芯綱用穴２とストランド用穴３のそれぞれを互いに独立して設けてあり、また、ばらした芯綱７やストランド６を芯綱用穴２とストランド用穴３のそれぞれで保持することができるので、新しい芯綱７ａに交換する際に、その芯綱７ａがストランド６に対して適正な位置に維持され、ストランド６の撚り戻し作業を行う際に、芯綱７ａの暴れを小さく抑えられる。これにより本実施形態に係る芯綱交換治具、及び芯綱交換方法によれば、作業者の熟練度に依存することなく、かつ容易に、ワイヤロープ５の端末処理のための芯綱７の交換を行うことができ、ワイヤロープ５の芯綱７の交換作業の能率を向上させることができ、また、芯綱７の交換後のワイヤロープ５端末の均一で精度の高い品質の確保を実現させることができる。また、一人の作業者のみによって、このワイヤロープ５の芯綱７の交換作業を行うことができる。 As described above, the core rope hole 2 and the strand hole 3 are provided independently of each other in the disc-like body 1 according to this embodiment, and the loose core rope 7 and the strand 6 are provided with the core rope. Since it can hold | maintain in each of the hole 2 for strands, and the hole 3 for strands, when replacing | exchanging to a new core rope 7a, the core rope 7a is maintained in the appropriate position with respect to the strand 6, and the strand 6 is twisted back. When carrying out the work, the rampage of the core rope 7a can be kept small. Thus, according to the core rope replacement jig and the core rope replacement method according to the present embodiment, the core rope 7 for the terminal processing of the wire rope 5 can be easily performed without depending on the skill level of the operator. The wire rope 5 can be exchanged, the efficiency of exchanging the core rope 7 of the wire rope 5 can be improved, and the quality of the wire rope 5 end after the exchange of the core rope 7 can be ensured with high accuracy. Can be made. In addition, the replacement work of the core rope 7 of the wire rope 5 can be performed by only one worker.
また、エレベータの主ロープを構成するワイヤロープ５は、一般に油等が付着していて滑りやすいが、本実施形態に係る円板状体１にあっては、ワイヤロープ５のストランド６のばらし、撚り戻しの回転操作時に把持される外周部に複数の溝４を設けてあるので、この溝４が滑り止めとなり、作業者の把持に伴って与えられる回転力を、円板状体１に確実に伝え、この円板状体１を円滑に回転させることができる。これにより、油等が付着しているワイヤロープ５にあっても、ストランド６のばらし、撚り戻しによる芯綱７の交換作業を能率良く行うことができる。 Further, the wire rope 5 constituting the main rope of the elevator is generally slippery because oil or the like is attached thereto, but in the disk-like body 1 according to the present embodiment, the strands 6 of the wire rope 5 are separated, Since the plurality of grooves 4 are provided in the outer peripheral portion that is gripped at the time of the untwisting rotation operation, the grooves 4 serve as a non-slip, and the rotational force applied with the gripping of the operator is surely applied to the disc-like body 1. The disk-like body 1 can be smoothly rotated. Thereby, even if it exists in the wire rope 5 to which oil etc. have adhered, the replacement | exchange operation | work of the core rope 7 by the dispersion | distribution of the strand 6 and twisting back can be performed efficiently.
なお、前述した実施形態に係る円板状体１は、ストランド用穴３として、各種の径のワイヤロープ５に対応させるために、小径ストランド用穴３ａと大径ストランド用穴３ｂの双方を設けてあるが、特定の径のワイヤロープ５のための専用治具とする場合には、単に１つの径から成るストランド用穴３のみを設けた構成にすればよい。 In addition, the disk-shaped body 1 which concerns on embodiment mentioned above provides both the hole 3a for small diameter strands, and the hole 3b for large diameter strands in order to make it correspond to the wire rope 5 of various diameters as the hole 3 for strands. However, in the case of using a dedicated jig for the wire rope 5 having a specific diameter, a configuration in which only the strand hole 3 having a single diameter is provided.
１ 円板状体（操作体）
２ 芯綱用穴
３ ストランド用穴
３ａ 小径ストランド用穴
３ｂ 大径ストランド用穴
４ 溝（係着力増加部）
５ ワイヤロープ
６ ストランド
７ 芯綱
７ａ 交換に用いられる芯綱部分
８ａ 矢印
８ｂ 矢印
９ 矢印
９ａ 矢印
９ｂ 矢印
１０ 切断器
1 Disc (operating body)
2 Core rope hole 3 Strand hole 3a Small diameter hole 3b Large diameter hole 4 Groove (engagement force increasing part)
5 Wire rope 6 Strand 7 Core rope 7a Core rope part used for exchange 8a Arrow 8b Arrow 9 Arrow 9a Arrow 9b Arrow 10 Cutting device
Claims (6)
前記ワイヤロープの前記芯綱の交換に際し、前記芯綱が挿入され、挿入された前記芯綱を保持する芯綱用穴と、前記複数のストランドがそれぞれ挿入され、挿入された前記ストランドのそれぞれを保持する複数のストランド用穴とを有し、前記芯綱が前記芯綱用穴に挿入保持され、合せて前記ストランドのそれぞれが該当する前記ストランド用穴に挿入保持された状態で、前記芯綱用穴に挿入保持された前記芯綱を中心に回転操作される操作体から成ることを特徴とするワイヤロープの芯綱交換治具。 In a wire rope core rope replacement jig for replacing the core rope of a wire rope having a core rope and a plurality of strands twisted around the core rope,
When replacing the core rope of the wire rope, the core rope is inserted, a core rope hole for holding the inserted core rope, the plurality of strands are inserted, and each of the inserted strands is inserted. A plurality of strand holes to be held, wherein the core rope is inserted and held in the core rope hole, and each of the strands is inserted and held in the corresponding strand hole. A wire rope core rope exchanging jig comprising an operating body that is rotated around the core rope inserted and held in a service hole.
前記操作体は、外周部の把持が可能な円板状体から成り、
前記円板状体の中央位置に前記芯綱用穴を設け、前記芯綱用穴の周囲に前記複数のストランド用穴を設けたことを特徴とするワイヤロープの芯綱交換治具。 In the wire rope core replacement jig according to claim 1,
The operating body consists of a disk-shaped body capable of gripping the outer periphery,
A core rope exchanging jig for a wire rope, wherein the core rope hole is provided at a central position of the disk-like body, and the plurality of strand holes are provided around the core rope hole.
前記複数のストランド用穴は、前記芯綱用穴に近づく側に形成され、径寸法を小さく設定した複数の小径ストランド用穴と、これらの小径ストランド用穴の前記芯綱用穴から離れる側である外側に形成され、前記小径ストランド用穴よりも径寸法を大きく設定した複数の大径ストランド用穴とを含むことを特徴とするワイヤロープの芯綱交換治具。 In the core rope replacement jig of the wire rope according to claim 2,
The plurality of strand holes are formed on the side closer to the core rope hole, and a plurality of small diameter strand holes having a small diameter are set on the side away from the core rope hole of the small diameter strand holes. A wire rope core rope exchanging jig comprising a plurality of large diameter strand holes formed on an outer side and having a diameter dimension larger than that of the small diameter strand holes.
前記円板状体の前記外周部に、この外周部を把持し、回転操作する際の前記円板状体との係着力を増加させる係着力増加部を設けたことを特徴とするワイヤロープの芯綱交換治具。 In the core rope exchanging jig of the wire rope according to claim 2 or 3,
An engagement force increasing portion that increases the engagement force with the disk-shaped body when the outer periphery of the disk-shaped body is gripped and rotated is provided on the outer periphery of the disk-shaped body. Core rope replacement jig.
前記係着力増加部は、前記円板状体の前記外周部に形成した溝から成ることを特徴とするワイヤロープの芯綱交換治具。 In the core rope exchanging jig of the wire rope according to claim 4,
The wire rope core rope exchanging jig, wherein the engaging force increasing portion is formed by a groove formed in the outer peripheral portion of the disk-like body.
前記ワイヤロープの端部をばらして、前記ワイヤロープの前記芯綱を前記操作体の前記芯綱用穴に挿入して保持させるとともに、前記ワイヤロープの前記ストランドのそれぞれを前記ストランド用穴に挿入して保持させ、
この状態で前記操作体を、前記ストランドの巻回方向とは逆方向に回転させて前記複数のストランドのそれぞれをさらにばらしながら、前記ワイヤロープの端部から離れる方向に前記芯綱の所定の切断必要長さまで移動させ、
前記操作体を、前記所定の切断必要長さまで移動させた状態で、前記操作体を挟んで前記ワイヤロープの前記端部側とは反対側に位置する前記芯綱の部分を切断器で切断し、この切断によって除去可能となった芯綱部分を前記操作体の前記芯綱用穴から抜き取り、
次に、交換に用いられる芯綱部分を、前記操作体の前記芯綱用穴に挿入し、前記交換に用いられる芯綱部分の端部を、切断によって残された芯綱部分の端部に当接させ、
この状態で前記操作体を、前記ストランドの前記巻回方向に回転させながら、前記ワイヤロープの前記端部方向に移動させて前記ストランドを撚り戻すようにしたことを特徴とするワイヤロープの芯綱交換方法。 In the method of replacing the core rope of the wire rope using the core rope replacement jig of the wire rope according to any one of claims 1 to 5, wherein the core rope of the wire rope is replaced.
The ends of the wire rope are separated, the core rope of the wire rope is inserted and held in the core rope hole of the operating body, and each of the strands of the wire rope is inserted into the strand hole. And hold
In this state, the operating body is rotated in a direction opposite to the winding direction of the strands to further separate each of the plurality of strands, and the predetermined cutting of the core rope in a direction away from the end of the wire rope. Move to the required length,
In a state where the operating body is moved to the predetermined required cutting length, a portion of the core rope located on the side opposite to the end side of the wire rope is cut with a cutter. The core rope part that can be removed by this cutting is extracted from the hole for the core rope of the operation body,
Next, the core rope portion used for replacement is inserted into the core rope hole of the operation body, and the end portion of the core rope portion used for the replacement is inserted into the end portion of the core rope portion left by cutting. Abut,
In this state, the operating body is moved in the direction of the end of the wire rope while being rotated in the winding direction of the strand, and the strand is twisted back to twist the strand. method of exchange.
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