WO2009093648A1 - トゲのないワイヤロープの玉掛索製造方法及びワイヤロープの玉掛索製造装置及び同装置を用いたトゲのないワイヤロープの玉掛索製造方法並びにトゲのないワイヤロープの玉掛索 - Google Patents
トゲのないワイヤロープの玉掛索製造方法及びワイヤロープの玉掛索製造装置及び同装置を用いたトゲのないワイヤロープの玉掛索製造方法並びにトゲのないワイヤロープの玉掛索 Download PDFInfo
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- WO2009093648A1 WO2009093648A1 PCT/JP2009/050959 JP2009050959W WO2009093648A1 WO 2009093648 A1 WO2009093648 A1 WO 2009093648A1 JP 2009050959 W JP2009050959 W JP 2009050959W WO 2009093648 A1 WO2009093648 A1 WO 2009093648A1
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- Prior art keywords
- wire rope
- strands
- bundle
- strand
- wire
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/18—Grommets
- D07B1/185—Grommets characterised by the eye construction
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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
- D07B7/162—Vices or clamps for bending or holding the rope or cable during splicing
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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
- D07B7/165—Auxiliary apparatus for making slings
Definitions
- the present invention is a wire having no thorns in which the end side of a wire rope is bent into a ring shape and the free end of the bent end is connected and fixed to the wire rope to form a loop-shaped ball hook at the tip of the wire rope.
- BACKGROUND OF THE INVENTION 1 Field of the Invention The present invention relates to a rope sling manufacturing method, a wire rope sling manufacturing device, a thornless wire rope sling manufacturing method using the same device, and a thornless wire rope sling.
- metal wire ropes are configured such that a plurality of strands of strands formed by twisting metal strands every several strands are twisted into a rope.
- a ring-shaped loop portion is formed at the tip of the wire rope, and the loop portion is engaged with the projection.
- a gap between the bundle strands twisted with a needle member called a sharp spiky is opened, and the first strand of the previously separated strands is inserted. Insert through the gap.
- each separated bundle strand is passed through the different gaps of the twisted strand in the same way, and finally the free ends of all the separated strands are connected to the loop base end of the wire rope.
- the strand gap formed at the position to be inserted is inserted. Repeating this several times is called a rounding operation.
- each bundle strand protruding through the gap is further branched into two sets of fine bundles, and the first set of fine bundle strands has a desired length from the surface of the wire rope. While cutting, other sets of fine strands that are not cut pass through different strand gaps. Repeating this several times is called half-insertion work.
- the wire rope used for the production of a conventional hand-knotted ball rope is made by arranging six pairs of strands in a hexagonal shape around the heart rope and its surroundings, and twisting them in a spiral shape. Is composed of a bundle of a plurality of wire strands constituting the inner side.
- Each twisted strand that is twisted at the base side where the distal end portion is folded is divided into six bundle strands and core ropes that constitute the wire rope on the folded distal end side
- the tips of the bundle strands are separated from each other in a predetermined order and are extracted from the determined interval.
- the tip side of each of the six separate strands coming out from the surface of the main line is further identified for each set as a fine bundle of outer layer wires and a fine bundle strand of inner layer wires. Then, it is subdivided into two groups to form twelve pairs of free ends of the thin strand strands, and only the six strands of each inner layer wire protruding from the surface of the wire rope to the outside at the surface position of the wire rope Disconnect.
- the six bundles of the outer layer wires that were not cut are passed in between the specific strands of the strands of the wire rope that are twisted in the order determined by the type of the knitting method. Repeat the work of extracting from a specific interval at least twice (this is called "half-insertion work"). Thereafter, the six bundles of outer layer wires extending out from the surface of the wire rope are cut at the surface position of the wire rope.
- these work procedures to determine from which space each bundle strand or fine bundle strand of each outer layer wire is passed and from which other space are extracted are determined by the type of knitting method. Further, the surface of the wire rope is lightly leveled with a hammer during each step.
- the spiky as a needle member that forms a gap between twisted strands located at the base end of the loop on the wire rope main body side is improved, and the strand bundle is formed at the tip just like a needle of a sewing machine.
- a technique related to spiking in which a hole for free end locking is formed see, for example, Patent Document 2).
- each inner layer wire or each outer layer wire that is cut at the surface position of the wire rope has a plurality of strong wire strands. Therefore, the so-called thorns at the cut portions are sharp, and if the hand directly touches the thorns, the surface of the hand is cut, which is very dangerous.
- the inner layer wire and outer layer wire bundles are initially cut at the very end of the surface of the main line, but the main line part where the thorns are dispersed may be bent many times. In the meantime, the thorns gradually protruded from the surface of the main line, and the protruding thorns were very dangerous because they sometimes split their gloves and cut their hands.
- the biggest problem with the sling rope is that the free ends of a plurality of separated strands are inserted through the gap between the twisted strands formed by spiking and the leading end is cut, so that the cut portion protrudes from the peripheral surface of the wire rope.
- the tip of the cutting part of the unwinding strand becomes sharp during work and there is a danger that the worker may be injured during the work, and further, the free end of the strand of the strand protrudes from the loop base end of the finally completed sling rope Therefore, it is that it was very dangerous for the user who uses the sling rope of the wire rope.
- Patent Document 1 describes a method for forming a sling rope so that the protruding free end of the strand does not protrude from the peripheral surface of the wire rope.
- the method of manufacturing the sling rope described in Patent Document 1 has a technique of pushing into the core gap formed at the center of the wire rope so that the cutting tip of the bundle strand, the so-called thorn, does not protrude from the peripheral surface of the wire rope.
- the thorns that are gradually pushed in during use of the wire rope sling rope may protrude from between the twisted strands to the peripheral surface of the wire rope.
- the reason for this is that the bundle strand to be inserted is always inserted in a constant twisting direction relative to the twist of the wire rope, for example, only in the reverse direction, and the braided strand is inserted. It is considered that the core gap formed by braiding communicates with the peripheral surface of the wire rope and the core gap cannot be made into a thorn storage space, that is, a closed space.
- the technique in which the thorns are stored in the core of the wire rope without protruding from the surface of the wire rope is an epoch-making ball hanging rope.
- a person who is inserted between the strands at the position to be the loop base end of the rope to form a gap between the strands, a person who inserts a terminal strand which has been released into the gap between the strands, and a gap between the strands Since all processes such as pulling the inserted strand at the same time as the spiky that formed the spigot are carried out by hand, it is necessary to work with three or more workers for thick diameters. Was.
- the inventor of the present application makes it possible to perform this work with a machine, and the free end of the strand finally inserted into the loop proximal end of the sling rope does not gradually protrude from the surface during use of the wire rope.
- An object of the present invention is to provide a wire rope sling manufacturing method capable of producing a wire rope having a sling formed on the end side while maintaining a certain quality without any problem, particularly on the end side of a wire rope having a large diameter Can be processed mechanically, and can be automated as much as possible, and can be processed with the smallest number of workers without any danger, and some wires It is intended to provide an apparatus for producing a slinging rope in which the strands do not break or break, a method for producing a slingless wire rope using the apparatus, and a splinterless wire rope produced by the method. It is to provide a slinging search of flops.
- the free end of the wire rope main body bent in advance is unraveled for each strand to form six sets of bundle strands at the tip of the wire rope.
- the bundle strand forming step and the bundle strand forming step at the position to be the base end of the loop portion of the wire rope, six sets of bundle strands are individually separated in the same direction as the wire rope twist between the twisted strands.
- a winding process in which the braiding operation is performed a plurality of times, and the six bundle bundle strands inserted between the twisted strands after the completion of the winding process are separately wire ropes.
- a basket insertion process that performs a braiding operation in which the wire rope is inserted in the direction opposite to the twisting direction and protrudes from the peripheral surface of the wire rope
- the bundle strand forming step of forming 12 sets of fine bundle strands by separating the tip of each of the 6 bundle strands protruding into inner layer lines and outer layer wires, and after completing the fine bundle strand formation step
- the inner layer wire cutting step of cutting the protruding tips of the six sets of fine bundle strands, and after the inner layer wire cutting step, the tips of the six sets of fine bundle strands that are the cut inner layer wires are placed at the center of the strand bundle strand of the wire rope.
- a fine strand strand cage insertion process in which the braiding operation of inserting in the direction opposite to the twisting direction and protruding from the peripheral surface of the wire rope is performed a plurality of times, and after completion of the fine bundle strand cage insertion step
- the outer layer wire cutting step of cutting the protruding tips of each of the six bundles of thin bundle strands that are the protruding outer layer wires, and the tips of the six bundles of strands that are the cut outer layer wires after the outer layer wire cutting step are finished It was set as the method for manufacturing a wire rope with no thorns, comprising a step of pushing the outer layer wire into the core gap at the center of the stranded strand.
- the free end side is previously unwound into a plurality of bundle strands, and the loop portion of the wire rope bent into a loop shape is fixed, and the extending direction of the wire rope is fixed to the fixed loop portion.
- a loop fixed rotation mechanism that rotates forward and backward as an axis, a wire rope fixing mechanism that fixes the lower portion of the wire rope extending from the loop portion of the wire rope, and a loop portion fixed rotation mechanism that should be the base end of the loop portion of the wire rope Spike elevating mechanism that allows spiking to be inserted into the part, and strand pulling mechanism that grips and pulls the free end of a bundle of strands that are manually inserted into the gaps between the twisted strands that are formed by inserting the spike by the spiking elevating mechanism, , A wire rope slinging rope manufacturing apparatus.
- the loop portion fixing and rotating mechanism is provided with clamping members that are configured to be movable toward and away from each other by operating cylinders on both the left and right sides of the base, It is characterized in that it can be rotated in the forward and reverse directions via an interlocking mechanism that is interlockingly connected to the base.
- the invention described in claim 4 is characterized in that, in the invention described in claim 2, the wire rope fixing mechanism is constituted by a cradle and a clamping body operated by a clamp cylinder.
- the invention according to claim 5 is the invention according to claim 2, wherein the spiking lift mechanism has a spiking cylinder disposed on a base plate that is movable forward and backward, and the spiking is vertically suspended at a lower end thereof.
- a spiky receptacle is disposed below the spike receiver so as to be movable up and down.
- the strand pulling mechanism includes a clamp device that grips a tip end portion of the strand bundle that is inserted through the main body of the wire rope, and a clamp portion that tightens the strand twist. It is characterized by comprising a tensioning device that pulls in the direction.
- the invention according to claim 7 is the invention according to claim 2 or 3, wherein a plurality of locking mechanisms are provided for temporarily locking the plurality of bundle strands released in pieces.
- the invention according to claim 8 is to fix the lower part of the wire rope by the wire rope fixing mechanism while using the wire rope sling rope manufacturing device according to claim 2, and to loop the wire rope body that has been bent in advance.
- the wire rope main body is fixed by a rotation fixing mechanism, and the free end of the wire rope body is manually unwound separately for each strand, and then spiked between the strands twisted at the position to be the base end of the loop portion of the wire rope.
- Spike is inserted by the lifting mechanism, and the wire rope is rotated by the loop part fixed rotation mechanism, so that the gap formed by spiky is opened, and the end of the first bundle strand in the same direction as the wire rope twist direction in the gap between the twisted strands Is inserted manually and protrudes from the gap to the peripheral surface of the wire rope. Pull the protruding ends of the strands, and pull the free ends of the other bundle strands in the same way through the gaps between the different strands.
- the invention described in claim 9 includes a bundle strand forming step, a winding step, a basket inserting step, a fine bundle strand forming step, an inner layer wire cutting step, and an inner layer wire tip pushing step described in claim 1.
- the wire rope slinging wire without thorns manufactured by the thin bundle strand cage inserting step, the outer layer wire cutting step, and the outer layer wire tip pushing step was used.
- the bundle in inserting a bundle strand or a thin bundle strand between twisted strands at the loop base end portion of the wire rope, first, the bundle is aligned along the twist in the same direction as the twist of the wire rope.
- the strands are knitted by inserting the strands between the strands. This operation is performed several times, then the bundle strands are knitted along the direction opposite to the twisting of the wire rope, and then separated into inner layer wires and outer layer wires.
- the outer layer wire after being inserted is knitted by being inserted between the twisted strands in the direction opposite to that of the wire rope.
- the bundle strands are knitted in the same direction as the wire rope twist and in the opposite direction, and the cutting strands of the bundle strands and the fine bundle strands pushed into the core space of the wire rope are stored.
- bundle strands and fine bundle strands are knitted in a state crossing in the direction opposite to the twist direction of the wire rope to form a core space. That is, the bundle strands and fine bundle strands that are crossed in a mesh form are in a state of surrounding the periphery of the core portion gap, and the strands that are the strand cutting tip portions are sealed so that they cannot be protruded outside the wire rope. There is an effect that can be done.
- the loop portion of the wire rope that has been previously unwound into a plurality of bundle strands and bent in a loop shape is fixed, and the fixed loop portion is extended in the extending direction of the wire rope.
- a loop portion fixing and rotating mechanism that rotates forward and backward about the axis, a wire rope fixing mechanism that fixes a lower portion of the wire rope extending from the loop portion of the wire rope that is fixed to the forward and reverse rotation by the loop portion fixing and rotating mechanism, and a strand
- a needle member is inserted into the gap, and the part that should be the base end of the loop part of the wire rope is rotated by the loop part fixed rotation mechanism to partially untwist the strand and widen the gap so that it can be raised and lowered freely.
- the left and right clamping members are configured to be close to and away from each other, and are configured to be close to and away from each other by the operating cylinder.
- the wire rope fixing mechanism has an effect that the wire rope can be securely fixed to facilitate subsequent spiking insertion work and strand wire rope insertion work.
- the spiking lifting mechanism is provided with a spiking cylinder having a spiking at the lower end on a base plate that can be moved back and forth, and the spiking cylinder can lower the spiking. It is easy to form a gap with a diameter wire rope by spiking, and when setting the spiking position, a predetermined spiking insertion position can be set while moving the base plate back and forth, so accurate spiking difference It is possible to perform the insertion work and to facilitate the next strand insertion work.
- the strand pulling mechanism can pull the clamp device for gripping the tip end portion of the strand inserted in the main wire of the wire rope, and the clamping device in the tightening direction of the strand twist. Because the mechanism is provided, the tip of the strand can be pulled reliably and safely with a strong force, and the tightness of the twist can be strengthened to further strengthen the connection between the main end of the wire rope and the base end of the loop. There is an effect that can.
- the base end portion of the loop portion is used as a bundle strand, and the strands between the strand strands of the main wire of the wire rope are twisted.
- the bundle strands are inserted in the opposite direction of twisting, and then the bundle strands of a plurality of disjointed bundles are further divided into two groups in the middle to cut one fine strand.
- the other narrow bundle strand is inserted into a different strand gap in the opposite direction to the twist, and the end portion of the finally cut strand is formed by extracting a part of the heart rope contained in the central portion of the wire rope.
- the strand cut portion which was conventionally called “thorn”, does not protrude from the surface of the wire rope, and the thorn is sealed in the core space before use.
- An effect can be produced safely wire rope.
- the manufacturing apparatus according to claim 2 since the manufacturing apparatus according to claim 2 is used, the formation of the gap for performing the strand insertion operation can be performed mechanically safely and accurately, and the strand pulling operation can also be performed mechanically reliably. There is an effect that the strength of the wire rope of the wire rope can be improved and it can be manufactured safely and reliably.
- the core part is composed of a core rope and a steel wire core, and the cut part of the strand does not protrude on the surface of the wire rope, and the hollow part of the core part is buried, It has the effect of dramatically improving the steel properties and strength of the wire rope as well as safety.
- FIG. 1 It is a perspective view which shows the wire rope ball hook manufacturing apparatus of this embodiment. It is a disassembled perspective view which shows the edge part of a wire rope. It is a figure which shows the preparatory work process which pulls out a bundle strand between the strand strands of a wire rope. It is a figure which shows the winding process which pulls out the 1st set bundle strand through the main line of a wire rope. It is a figure which shows the winding-out process which pulls out the 2nd bundle strand through the main line of a wire rope. It is a figure which shows the winding-in process of drawing out the 3rd bundle bundle strand through the main line of a wire rope.
- FIG. 21 is a cross-sectional view showing a cross section taken along line BB in FIG. 20.
- FIG. 21 is a cross-sectional view showing a cross section taken along line AA in FIG. 20. It is a perspective view which shows the principal part of a loop part fixed rotation mechanism. It is a perspective view which shows the principal part of a loop part fixed rotation mechanism. It is a front view which shows the principal part of a wire rope fixing mechanism. It is a perspective view which shows a spiky receptacle. It is a perspective view which shows the use condition of a clamp apparatus. It is a perspective view which shows the state which inserted the spike through the wire rope. It is process drawing which shows the operating state of spiky. It is process drawing which shows the operating state of spiky. It is process drawing which shows the operating state of spiky. It is a top view which shows the slingless wire rope manufactured with this wire rope sling rope manufacturing apparatus.
- the following techniques are known as methods for producing hand-knotted ball ropes using wire ropes. That is, the “winding method” and the “cage insertion method” are used.
- the “winding method” is a method of unwinding the ends of the wire ropes in units of strands and passing the strands between the twisted strands of the wire rope, in the “same direction” as the wire rope twisting direction. It is a method of winding around.
- the tip of the wire rope is unwound into a unit of strand, and the bundle strand is passed between the twisted strands of the wire rope and wound in the direction opposite to the twisted direction of the wire rope. Is the method.
- the winding method and the cage insertion method are distinguished depending on whether the wire rope is twisted in the same direction or in the opposite direction.
- the front end side of the wire rope 11 is folded back, and the loop portion 12 is formed on the folded front end side, and at the same time, at the front end portion of the folded wire rope 11, six sets of bundle strands 1 to 6 and the heart rope 7 at the center thereof Break up into pieces.
- a preparatory work step is performed as a pre-stage of the work of passing the bundle strands 1 to 6 into the stranded strands A to F of the main wire 11a of the wire rope 11 (a bundle strand insertion work by a so-called winding method).
- this preparatory work process is referred to as pouring by the ground insertion method.
- FIG. 3 six sets of bundle strands 1 to 6 are spiked 145 between appropriate strands A to F. And is inserted through the gap between the twisted strands A to F. This operation will be described in detail with reference to FIG.
- This step is to prevent the unwinding of the bundle strands by engaging and fixing the roots of the separated bundle strands 1 to 6 to the twisted strands A to F in order to perform the next winding step. is there.
- the bundle strand 1 is inserted from between the twisted strands A and F on the main line 11 a side of the wire rope 11, and the space between the twisted strands B and C is pulled through the left side of the core rope 7.
- the bundle strand 5 is inserted between the stranded strands A and B on the main wire 11a side of the wire rope 11 to remove the stranded strands A and F, and at the same time, the strands A to F are untwisted.
- the bundle strand 6 is inserted from between the twisted strands A and F on the main wire 11a side of the wire rope 11 and pulled out between the twisted strands A and B. At the same time, the strands A to F are untwisted. Then, the untwisted portions of the strands A to F are lightly leveled with a hammer.
- the bundle strands are divided into 5 to 1 and inserted into the twisted strands.
- the ground strand method in which the bundle strands are divided into 4 to 2 and the bundle strands in 3 pairs.
- grounding methods that are divided into three, and these methods can be a preparatory work step for obtaining the sled rope of the wire rope of this embodiment.
- Flemish method As another example, in addition to the above-described method of placing by the ground method, there is a method of placing by the Flemish method.
- the Flemish method will be described in detail with reference to FIG.
- the bundle strands are divided into three to three. A method to be performed in two groups will be described.
- the strand 1 is inserted from between the strand strands A and B on the main wire 11 a side of the wire rope 11, and the space between the strands A and F is pulled out through the right side of the core rope 7.
- the strand 3 is inserted from between the twisted strands C and D on the main wire 11 a side of the wire rope 11, and the space between the twisted strands B and C is pulled through the right of the core rope 7.
- the strand 4 is inserted from between the strand strands A and F on the main wire 11 a side of the wire rope 11, and the space between the strands E and F is pulled out through the right side of the core rope 7.
- the strand 5 is inserted from between the twisted strands E and F on the main wire 11a side of the wire rope 11, and the space between the twisted strands D and E is removed.
- the strand 6 is inserted between the stranded strands D and E on the main wire 11a side of the wire rope 11 and pulled between the stranded strands C and D.
- the first set of bundle strands 1 is inserted from between the strand strands C and D on the main wire 11a side of the wire rope 11, and the strands B and C are passed through the right side of the core rope 7. Remove the space. The bundle strand 1 passed here is tightened.
- the second set of bundle strands 2 is inserted between the twisted strands D and E on the main line 11a side of the wire rope 11, and between the twisted strands C and D through the left of the core rope 7. Unplug. The bundle strand 2 passed here is tightened.
- the strand 3 as a third bundle strand is inserted between the strand strands E and F on the main wire 11a side of the wire rope 11, and the strand strand D Remove E.
- the bundle strand 3 passed here is tightened.
- the fourth bundle strand 4 is inserted between the strand strands A and F on the main line 11 a side of the wire rope 11 and between the strands E and F through the right side of the core rope 7. Unplug. The strand 4 passed here is tightened.
- the fifth strand bundle 5 is inserted from between the strand strands A and B on the main wire 11a side of the wire rope 11 and simultaneously the strands A and F are pulled out. Untwist A to F. The bundle strand 5 passed here is tightened.
- the 6th bundle strand 6 is inserted from between the strand strands B and C on the main wire 11a side of the wire rope 11 and pulled between the strand strands A and B. Untwist A to F. The bundle strand 6 passed here is tightened.
- the second bundle strand 1 is also inserted into the gap between the same strand strands in which the first bundle strand 1 has been inserted in the first time. 1 is also inserted, and the first bundle strand 1 is inserted through the gap between the twist strands in the first swirl portion of the wire rope twist, and the second bundle strand 1 is twisted first.
- the third strand strand 1 is inserted into the same twisted strand gap in the third swirl portion of the twist.
- this procedure is similarly inserted into the first turning portion, the second turning portion, and the third turning portion of the twist in the second bundle strand 2 as well.
- the bundle strands 3 to 6 up to the sixth set are inserted through the swivel portions as shown in FIGS. 6 to 9, and the bundle strands 3 to 6 of each set are inserted three times. Is completed.
- FIG. 10 shows the inserted state of each set of bundle strands 1 to 6 by the cage insertion method performed only once. The details will be described below.
- the first bundle strand 1 is inserted from between the strand strands C and D on the main wire 11 a side of the wire rope 11, and the space between the strands E and F is pulled through the right side of the core rope 7.
- the third bundle strand 3 is inserted from between the strand strands E and F on the main wire 11a side of the wire rope 11, and the space between the strands A and B is pulled through the right of the core rope 7.
- the fourth bundle strand 4 is inserted from between the strand strands A and F on the main wire 11 a side of the wire rope 11, and the space between the strands B and C is pulled through the left of the core rope 7.
- the fifth bundle strand 5 is inserted from between the strand strands A and B on the main line 11a side of the wire rope 11, and the space between the strands C and D is pulled out.
- the sixth bundle strand 6 is inserted from between the strand strands B and C on the main wire 11a side of the wire rope 11 and pulled between the strand strands D and E.
- the inner layer wire fine bundle strands 1a to 6a of the six sets of bundle strands 1 to 6 are subjected to an inner layer wire cutting step for cutting at the position of the surface of the wire rope, and six sets of outer layer wires, that is, six sets of fine bundle strands 1b to 6b is left (see FIGS. 11, 15 and 16).
- the core 7 is pulled out and cut from between the strands A to F (see FIG. 17), and the core gap 11b is formed at a position where a part of the core 7 at the center of the strands A to F is removed.
- the thin bundle strands 1b to 6b of the outer layer wires that are left protruding are subjected to a fine bundle strand insertion process that is inserted between the twisted strands A to F by an operation by a half insertion method. That is, as shown in FIG. 11, the thin bundle strands 1b to 6b of the first to sixth sets of outer layer wires are inserted between predetermined twisted strands A to F while being wound in a direction opposite to the twist.
- the first bundle of strands 1b is inserted from between the strand strands D and E on the main wire 11a side of the wire rope 11, and the space between the strands B and C is pulled through the left of the core rope 7.
- the fourth set of fine bundle strands 4b is inserted between the strand strands A and B on the main wire 11a side of the wire rope 11, and the space between the strands E and F is pulled through the right side of the core rope 7.
- the fifth bundle of fine bundle strands 5b is inserted between the twisted strands B and C on the main wire 11a side of the wire rope 11, and the space between the twisted strands A and F is removed.
- the sixth set of fine bundle strands 6b are inserted between the twisted strands C and D on the main wire 11a side of the wire rope 11 and pulled out between the twisted strands A and B.
- the six strands 1b to 6b of the outer layer wires are completely inserted into the twisted strands A to F by the respective cage insertion methods.
- the first bundle of thin bundle strands 1b is inserted between the twisted strands A and B on the main wire 11a side of the wire rope 11, and the space between the twisted strands E and F is removed.
- the fifth bundle of thin bundle strands 5b is inserted between the twisted strands E and F on the main wire 11a side of the wire rope 11, and the space between the twisted strands C and D is removed.
- the sixth set of fine bundle strands 6b is inserted between the twisted strands A and F on the main wire 11a side of the wire rope 11 and pulled out between the twisted strands D and E.
- the basket insertion operation in half insertion is performed twice, but is not particularly limited to two times, and may be twice or more.
- Outer layer wire cutting step and outer layer wire tip pushing step When the operation of two or three times of cage insertion is completed, an outer layer wire cutting step is performed for cutting the six bundles of outer layer wire fine bundle strands 1b to 6b protruding at the surface of the wire rope. The cut portion of the cut outer layer wire is subjected to an outer layer wire tip pushing step of pushing into the core space 11b of the stranded strands A to F.
- two sets of each of the six bundles of outer layer wires 1b to 6b are bundled to tap the root, and three sets of taping strand bundles are newly formed.
- the thin bundle strands protruding from the tip of the tape are cut and the tip portions of the three sets of taping bundle strands are inserted into the core space 11b (see FIG. 18).
- the heart rope 7 drawn out to the outside is returned to the core space 11b.
- the six bundles of the outer layer wire thin bundle strands 1b to 6b described in FIG. 13 are bundled two by two so as to be accommodated in the core space 11b.
- the core gap 11b may be accommodated, or the six strands of outer layer wire bundles are bundled three by three so as to be accommodated in the core gap 11b.
- the strands may be bundled and stored in the core space 11b.
- this wire rope slinging rope manufacturing apparatus can also be used for implementation of the conventional slinging slack manufacturing method.
- Such a wire rope sling rope manufacturing apparatus operates a plurality of bundle strands 1 to 6 that are separated between the stranded strands A to F on the main line 11a side so as to form a base end portion in the loop portion of the main line 11a of the wire rope 11. It is possible to perform work other than the work that a worker inserts by hand.
- FIG. 1 and FIG. 19 are perspective views showing a wire rope sling manufacturing apparatus according to this embodiment
- FIG. 20 is a plan view showing the wire rope sling manufacturing apparatus according to this embodiment
- FIG. 21 is a wire rope sling according to this embodiment
- FIG. 22 is a left side view showing the wire rope sling manufacturing apparatus of the present embodiment
- FIG. 23 is a rear view showing the wire rope sling manufacturing apparatus of the present embodiment
- FIG. 25 is a cross-sectional view showing a cross section taken along the line BB in FIG. 25
- FIG. 25 is a cross-sectional view showing a cross section taken along the line AA in FIG.
- FIG 29 is a perspective view showing a spiky receiver
- FIG. 30 is a perspective view showing a usage state of the clamp device
- FIG. 31 is a perspective view showing a state in which the spike is inserted through a wire rope.
- Figure, Figure 32, Figure 3 and FIG. 34 is a process view showing an operating state of Supaiki
- FIG 35 is a plan view showing the barbs without slinging wire rope produced in this wire rope sling rope manufacturing device.
- the wire rope sling rope manufacturing apparatus 101 unwinds the free end side into a plurality of bundle strands 1 to 6 in advance and fixes the loop portion 12 of the wire rope 11 bent in a loop shape.
- a loop portion fixing and rotating mechanism 110 that rotates forward and backward about the extending direction of the wire rope 11, a wire rope fixing mechanism 130 that fixes a lower portion of the wire rope extending from the loop portion 12 of the wire rope 11, and a loop portion fixing rotation Spike raising / lowering mechanism 140 that allows spike 145 to be inserted into the base end of the loop portion of wire rope 11 by mechanism 110, and the gap between twisted strands A to F formed by inserting spike 145 by spiking raising / lowering mechanism 140 A plurality of bundle strands 1 to 6 inserted into S (see FIG. 31) manually.
- Strands pulling mechanism 160 gripping and pulling the ends are more configurations.
- the loop portion fixing and rotating mechanism 110 includes a pedestal 112 on which the loop portion 12 is placed, a clamping member 113 that is provided on both sides of the pedestal 112 so as to be able to move away from and away from each other, and An operating cylinder 114 disposed on the back surface of the pedestal 112, a rotating shaft 116 connected to the tip of the pedestal 112 via a connecting member 115, and a motor 118 linked to the rotating shaft 116 via an interlocking mechanism 117 It becomes more.
- Two clamping members 113 are provided on the left and right sides, and are provided so as to oppose the holding surface formed in a substantially U-shaped cross section, and in a recess 113a (see FIG. 27) of the holding surface having a substantially U-shaped cross section. Is configured so that the wire rope 11 forming the loop portion 12 is loosely fitted, and the rear end portion of the clamping member 113 is used to press and hold a portion that should be the base portion of the loop portion 12. A projecting member 119 is projected. With this configuration, the loop portion 12 of the wire rope 11 is placed on the pedestal 112 and clamped and fixed by the clamping member 113.
- an operating cylinder 114 (see FIGS. 26 and 27) is disposed on the back surface of the pedestal 112.
- the working cylinder 114 projects the left and right piston rods 120 and 120 from both ends so that the left and right piston rods 120 and 120 can extend and retract, and left and right clamping members 113 and 113 are connected to the ends of the left and right piston rods 120 and 120 via brackets 121 and 121. .
- the holding members 113 and 113 are held and fixed on the pedestal 112 by the operation of the operation cylinder 114 so that the loop portion 12 of the wire rope 11 is clamped and fixed.
- the wire rope fixing mechanism 130 is a mechanism for fixing the main line extending from the loop portion 12 of the wire rope 11.
- the clamp member 131 is composed of a clamp member 131 provided on the entire frame 102 and a clamp cylinder 132 that operates the clamp member 131.
- the clamp member 131 includes a cradle 133 and a pressing body 134 that moves up and down. It is made up of.
- the pressing body 134 is connected in a substantially L shape to the tip of the piston rod 135 of the clamping cylinder 132 installed vertically (see FIGS. 24 and 28).
- the main line 11a of the wire rope 11 is clamped and fixed to the cradle 133 and the compacting body 134.
- the spiki elevating mechanism 140 includes a base plate 141, a spiking cylinder 143, and a spiking cylinder 143 mounted so as to be able to travel back and forth along the left and right traveling rails 142, 142 disposed on the entire frame 102.
- Reference numeral 141a denotes a sliding piece provided on the bottom surface of the base plate 141 and slides on the traveling rail.
- the spiky receptacle 147 is formed in a cylindrical shape with rubber, and is configured such that when the spiky 145 is lowered, the tip of the spiking can be received by the cylindrical inner portion 148 (see FIG. 29).
- the spiky receptacle 147 has a substrate 153 having a substantially U-shaped cross section at the bottom, a lifting cylinder 150 is placed on the substrate 153, and a spike receiving plate 147a is connected to the tip of the rod 151 of the lifting cylinder 150. is doing.
- a strand holder 149 having a V-shaped receiving groove 149a is placed on the spiking receiving plate 147a, and the main wire 11a of the wire rope 11 is placed and fixed in the receiving groove 149a in order to insert the spiking 145 into the twisted strand. It is configured to do.
- the spiky receiver 147 is configured to run along with the spiking elevating mechanism 140 on 154 laid on the lower part of the entire frame 102.
- a sliding piece 153a is provided on the bottom surface of the substrate 153 so that the sliding piece 153a can slide on the left and right traveling rails 154.
- the spiking elevating mechanism 140 and the spiking receptacle 147 are formed by a U-shaped frame 146 between the side surface of the spiking cylinder 143 and the side surface of the elevating cylinder 150 so that the spiking receiver 147 can move on the upper and lower traveling rails 142 and 154 simultaneously. It is connected continuously.
- the strand pulling mechanism 160 inserts a bundle of strands 1 to 6 formed by spiking 145 between the twisted strands A to F and pulls it from the opposite side of the main line of the wire rope 11, the strand pulling mechanism 160 It is configured to be pulled.
- the strand pulling mechanism 160 is provided at a predetermined position of the entire frame 102 so that the clamp device 170 for gripping the end portion of the strand, the wire 163 having the tip connected to the clamp device 170, and the wire 163 are stretched.
- a plurality of wire engaging pieces 161 and a winch portion 162 connecting the base ends of the wires 163 are configured.
- the clamping device 170 passes the leading end portions of the bundles 1 to 6 through the pulling wire 163 in a predetermined direction, that is, the main wire 11a of the wire rope 11.
- the bundle 1 to 6 can be pulled in the tightening direction.
- the clamp device 170 bends the wire receiver 172 provided on the machine casing 171, the presser 173 disposed above the wire receiver 172, and the upper end of the presser 173.
- L-shaped lever 175 pivotally supported at section 174, pivot-supporting portion 176 pivotally supporting the base end of L-shaped lever 175 to machine frame 171 and arm 177 pivotally supported at the distal end of L-shaped lever 175
- the clamping device 170 is configured to be pulled in the tightening direction of the bundle strands 1 to 6 via the pulling wire 163.
- Reference numeral 167 denotes a guide member for the arm 177.
- the arm 177 is connected to the tip of the pulling wire that is linked to the winch portion 162, the strand tip is interposed between the wire receiver 172 and the presser 173, and the pulling wire 163 is held by the winch portion 162.
- the L-shaped lever 175 of the clamp device 170 is pivoted about the pivot 176 and presses the presser 173 against the wire receiver 172 to grip the tip of the bundle strand while clamping the clamp device. 170 is pulled in the tightening direction of the twist of the bundle strand holding the tip.
- the loop portion fixing and rotating mechanism 110, the wire rope fixing mechanism 130, the spiking elevating mechanism 140, and the strand pulling mechanism 160 described above are provided at predetermined locations of the entire frame 102 that is configured in a substantially rectangular frame.
- the entire frame 102 temporarily fixes each bundle when the tip of the wire rope 11 bent to form the loop portion 12 is separated for each bundle of the bundle strands 1 to 6.
- the strand temporary fixing mechanism 180 is provided, and the strand temporary fixing mechanism 180 places a magnet metal piece having a mountain-shaped notch 181 on the bottom surface on the lateral side of the loop portion fixing rotation mechanism 110, and by magnetic force, It can be freely fixed to a metal plate disposed on the lateral side of the loop portion fixing rotation mechanism 110.
- the strand pulling mechanism 160 is connected to the winch portion 162 by pulling the base end of the arm 177 pivotally connected to the tip of the L-shaped lever 175 in the clamp member 131 to the tip of the telescopic rod of the cylinder in addition to the above configuration.
- An alternative to the wire 163 can be used.
- the tip portion of the wire rope 11 is bent into a substantially U-shape and placed on the pedestal 112 of the loop portion fixing and rotating mechanism 110 so as to form a sled rope on the wire rope.
- the left and right clamping members 113 and 113 are slid in the proximity direction by the operating cylinder 114 while being clamped by the left and right clamping members 113 and 113.
- the main line 11 a portion of the wire rope 11 is fixed to the entire frame 102 via the wire rope fixing mechanism 130.
- the wire rope 11 is fixed to the entire frame 102 at the tip portion to be the loop portion 12 and the main line 11a side on the lower side.
- the spiking 145 is inserted into a position to be the base end of the loop portion of the wire rope 11 by the spiking elevating mechanism 140. If necessary, before inserting the spiky 145, the wire rope fixing mechanism 130 may be rotated in advance by rotating the main wire 11a of the wire rope 11 in the opposite direction to the twisting to loosen the twisting.
- the spiking 145 suspended from the spiking cylinder 143 of the spiking lifting mechanism 140 is inserted into the main line 11 a of the wire rope 11 by the descent operation of the spiking cylinder 143. Spike 145 is then inserted between adjacent strands A-F.
- spiky 145 is skewed between the strands A to F on the main wire 11a side of the wire rope 11.
- the pedestal 112 is rotated by the loop portion fixing and rotating mechanism 110 while the spiky 145 is skewed.
- the gap S gradually begins to spread between the twisted strands A to F that rotate and move to the side where the twist is to be returned and the spiking 145 that has penetrated, and the gap that allows the bundle strand 1 to be inserted around the spiking 145 that has penetrated. S is formed.
- the worker inserts the bundle strand 1 through the gap S between the strands C and D formed around the spiky 145 (see FIG. 33). Since the gap S is sufficiently wide, it is possible to prevent the strands from coming into contact with each other and being damaged when inserted. After inserting and passing through the gap S, the front end side of the strand 1 is sandwiched and fixed to the front end side of the strand pulling mechanism 160 provided on one side of the loop portion fixing rotation mechanism 110.
- the clamp device 170 holding the tip end side of the bundle strand 1 is pulled and moved, whereby the bundle strand 1 inserted through the gap S between the twisted strands C and D is pulled.
- the mechanism 160 is pulled up by the operation. Compared to the case where the operator pulls up and tightens as in the prior art, the pulling-up force by the strand pulling mechanism 160 is constant, so the quality is constant.
- the motor 118 is rotated in the reverse direction, and the pedestal 112 is rotated in the reverse direction.
- the spiky 145 whose tip side has penetrated the wire rope has a loop portion base of the wire rope along the space between the twisted strands A to F twisted in a spiral manner as the twisted strands A to F rotate in the twisting direction. It moves to an end side direction, and moves to the place away from the place where the bundle strand 1 was inserted (refer FIG. 34).
- the spiky 145 that has penetrated is once pulled out of the strand strands A to F, and then again between the strand strands A to F. The same operation is repeated thereafter.
- the strands 1 to F are twisted while inserting the bundle strand 1 again with a gap around the spiky that has penetrated and tightening it with the strand tension mechanism 160. Rotate in the direction to return the twist and repeat this several times. In this way, a wire rope slinging line (see FIG. 35) having no thorns in which a ring-shaped loop portion 12 is formed on the end side is manufactured.
- the ends of the six bundle strands 1 to 6 are manually separated into the inner layer wires 1a to 6a and the outer layer wires 1b to 6b, and the ends of the inner layer wires 1a to 6a are cut to form wire ropes.
- 11 is pushed into the core gap 11b, and the thin bundle strands of the outer layer wires 1b to 6b are also inserted between the twisted strands A to F, and then the tip is cut and pushed into the core gap 11b.
- the spiking 145 described above is inserted between the twisted strands A to F of the wire rope 11 by the spiking lift mechanism 140, and the operation for expanding the gap between the twisted strands A to F is performed by the loop portion fixing and rotating mechanism 110.
- the operation of pushing the cutting tip into the core space 11b is performed by the spiking elevating mechanism 140 and the loop portion fixing and rotating mechanism 110. That is, the spiking mechanism 145 is inserted between the twisted strands A to F of the wire rope 11 by the spiking lifting mechanism 140, and the spiking insertion portion is expanded by the rotation of the loop portion fixing rotating mechanism 110. Is manually pushed into the core gap 11b.
- this wire rope sling rope manufacturing apparatus can also be applied to sling rope manufacturing of synthetic fiber other than metal. In this case, the spiky shape is changed for use.
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Abstract
Description
特に、請求項2に記載の製造装置を用いるために、ストランドの挿入作業を行うための間隙の形成が機械的に安全にかつ正確に行えると共にストランドの引張り作業も機械的に確実に行えるためにワイヤロープの玉掛索の強度を向上し、かつ安全確実に製造することができる効果がある。
1~6 束ストランド
1a~6a 内層線の細束ストランド
1b~6b 外層線の細束ストランド
7 心綱
11 ワイヤロープ
101 ワイヤロープ玉掛索製造装置
110 ループ部固定回転機構
112 台座
113 挟持部材
114 作動シリンダ
115 連結部材
116 回転軸
117 連動機構
118 モータ
119 突部材
120 ピストンロッド
121 ブラケット
130 ワイヤロープ固定機構
131 クランプ部材
132 クランプ用シリンダ
133 受台
135 ピストンロッド
140 スパイキ昇降機構
141 台板
142,154 走行レール
143 スパイキ用シリンダ
144 ピストンロッド
145 スパイキ
147 スパイキ受体
149 ストランド保持体
150 昇降シリンダ
151 ロッド
153 基板
160 ストランド引張り機構
161 ワイヤ係合コマ体
162 ウインチ部
163 ワイヤ
170 クランプ装置
束ストランド形成工程について説明する。図2に示すように、先ずワイヤロープ11の自由端部側に輪状のループ部12を作る。
ここで、ワイヤロープ11の本線11aの撚りストランドA~F内に各束ストランド1~6を通す作業(いわゆる巻差し方法による束ストランド挿通作業)の前段階としての準備作業工程を行う。すなわち、この準備作業工程は、地差し法による口入れと称するものであり、6組の各束ストランド1~6を図3に示すように、撚りストランドA~Fの適宜の間にスパイキ145を入れて、撚りストランドA~F間の間隙に挿通する。この作業を図3に基づき詳説する。この工程は次工程の巻差し工程を行うためにばらばらの束ストランド1~6の根元を撚りストランドA~Fに係合し固定して束ストランドの巻差しが弛緩しないようにするためのものである。
このように6組の各束ストランド1~6がそれぞれ撚りストランドA~F間に挿通され準備作業工程が終了した後(図3参照)に、以下に示す巻差し方法による6組の各束ストランド1~6の挿通作業が行われる。
次いで、各組の束ストランド1~6を「かご差し方法」による作業で撚りストランド間に挿通する。
以上で6組の束ストランド1~6は、巻差し、かご差しの各方法による撚りストランドA~Fへの挿通作業が完了する。そして、束ストランド1~6の各突出端を内層線の細束ストランド1a~6aと、外層線の細束ストランド1b~6bとに分別する細束ストランド形成工程を行う。一般にストランド単体を構成する複合線は、内外層線の多層線よりなり、これらを内層線、外層線と称しており、ここでは、これら内外層線に分別する作業を行う。
6組の束ストランド1~6の内層線の細束ストランド1a~6aは、ワイヤロープ表面の位置で切断する内層線切断工程を行い、6組の外層線、すなわち6組の細束ストランド1b~6bを残す(図11、図15及び図16参照)。このとき、撚りストランドA~F間から心綱7を引き出し切断(図17参照)して、同撚りストランドA~Fの中心部の心綱7の一部を抜いた箇所に芯部空隙11bを形成する。
切断された6組の細束ストランドの先端切断部分、いわゆる内層線トゲ6本は、撚りストランドA~Fの中心部の心綱7の一部を抜いて生じた芯部空隙11b中に押し込む内層線先端押込み工程を行う。
突出したままのかかる外層線の細束ストランド1b~6bは、半差しによるかご差し方法による作業で撚りストランドA~F間に挿通する細束ストランドかご差し工程を行う。すなわち、図11に示すように1組目~6組目の外層線の細束ストランド1b~6bは、所定の撚りストランドA~F間に、撚りと反対方向に巻回しながら挿通する。
2~3回のかご差しの作業が終了するとワイヤロープ表面位置において突出した6組の外層線の細束ストランド1b~6bを切断する外層線切断工程を行う。切断した外層線の切断部分は、撚りストランドA~Fの芯部空隙11b中に押込む外層線先端押込み工程を行う。
図1及び図19は本実施形態のワイヤロープ玉掛索製造装置を示す斜視図、図20は本実施形態のワイヤロープ玉掛索製造装置を示す平面図、図21は本実施形態のワイヤロープ玉掛索製造装置を示す右側側面図、図22は本実施形態のワイヤロープ玉掛索製造装置を示す左側側面図、図23は本実施形態のワイヤロープ玉掛索製造装置を示す背面図、図24は図20におけるB-B線断面を示す断面図、図25は図20におけるA-A線断面を示す断面図、図26及び図27はループ部固定回転機構の要部を示す斜視図、図28はワイヤロープ固定機構の要部を示す正面図、図29はスパイキ受体を示す斜視図、図30はクランプ装置の使用状態を示す斜視図、図31はスパイキをワイヤロープに差し通した状態を示す斜視図、図32、図33及び図34はスパイキの作動状態を示す工程図、図35は本ワイヤロープ玉掛索製造装置で製造したトゲのない玉掛ワイヤロープを示す平面図である。
Claims (9)
- 予め折り曲げられたワイヤロープ本体の自由端をストランド毎にばらばらに解舒してワイヤロープ先端部分に6組の束ストランドに形成する束ストランド形成工程と、
束ストランド形成工程終了後に、ワイヤロープのループ部基端とすべき位置において、撚られた各ストランドの間に6組の束ストランドをそれぞれ別々にワイヤロープの撚り方向と同じ方向に差し込んでワイヤロープ周面から突出させる編み込み作業を複数回行う巻差し工程と、
巻差し工程終了後に、撚られた各ストランドの間に差し込んだ前記6組の束ストランドをそれぞれ別々にワイヤロープの撚り方向と逆の方向に差し込んでワイヤロープ周面から突出させる編み込み作業を行うかご差し工程と、
かご差し工程終了後に、突出した6組の各束ストランドの先端を内層線と外層線とに分別して12組の細束ストランドを形成する細束ストランド形成工程と、
細束ストランド形成工程終了後に、内層線よりなる6組の細束ストランドの突出先端を切断する内層線切断工程と、
内層線切断工程終了後に、切断した内層線である6組の細束ストランドの先端をワイヤロープの撚り束ストランドの中心に形成された芯部空隙中心に押込む内層線先端押込み工程と、
内層線先端押込み工程終了後に、外層線よりなる6組の細束ストランドをワイヤロープの撚られた各ストランドの間にワイヤロープの撚り方向と逆の方向に差し込んでワイヤロープ周面から突出させる編み込み作業を複数回行う細束ストランドかご差し工程と、
細束ストランドかご差し工程終了後に、突出した外層線たる6組の各細束ストランドの突出先端を切断する外層線切断工程と、
外層線切断工程終了後に、切断した外層線たる6組の細束ストランドの先端を、ワイヤロープの撚りストランドの中心の芯部空隙中に押込む外層線先端押込み工程とよりなる
ことを特徴とするトゲのないワイヤロープの玉掛索製造方法。 - 予め自由端側を複数の束ストランドに解舒し、ループ状に折り曲げたワイヤロープのループ部を固定すると共に、固定したループ部を該ワイヤロープの伸延方向を軸として正逆回転するループ部固定回転機構と、
ワイヤロープのループ部から伸延するワイヤロープ下手部分を固定するワイヤロープ固定機構と、
ループ部固定回転機構によってワイヤロープのループ部基端となるべき部分にスパイキを差し込み可能としたスパイキ昇降機構と、
スパイキ昇降機構によりスパイキを差し込むことによって形成された撚りストランドの間隙に人手によって挿入した一束のストランドの自由端を把持して引っ張るストランド引張り機構と、
を備えたことを特徴とするワイヤロープの玉掛索製造装置。 - ループ部固定回転機構は、台座の左右両側に作動シリンダによって近接離反自在に構成した挟持部材を配設すると共に、台座をモータに連動連設した連動機構を介して正逆回転自在に構成した
ことを特徴とする請求項2に記載のワイヤロープの玉掛索製造装置。 - ワイヤロープ固定機構は、受台とクランプシリンダーで作動する挟圧体とで構成した
ことを特徴とする請求項2に記載のワイヤロープの玉掛索製造装置。 - スパイキ昇降機構は、前後に走行自在の台板にスパイキ用シリンダを配設しその下端にスパイキを昇降自在に垂設し、その下方にはスパイキ受体を昇降自在に配設して構成した
ことを特徴とする請求項2に記載のワイヤロープの玉掛索製造装置。 - ストランド引張り機構は、ワイヤロープの本体に挿通したストランド束の先端部を把持するクランプ装置と、クランプ部をストランドの撚りの締付け方向に引っ張る引張り装置とにより構成した
ことを特徴とする請求項2に記載のワイヤロープの玉掛索製造装置。 - ばらばらに解除された複数の束ストランドを一時的に係止するための複数の係止機構を設けた
ことを特徴とする請求項2及び請求項3に記載のワイヤロープの玉掛索製造装置。 - 請求項2に記載のワイヤロープの玉掛索製造装置を用いながら、ワイヤロープ固定機構によりワイヤロープの下手部分を固定すると共に、予め折り曲げられたワイヤロープ本体のループ部固定回転機構により固定し、ワイヤロープ本体の自由端を手作業によりストランド毎にばらばらに解舒し、次いで、ワイヤロープのループ部基端とすべき位置において撚られた各ストランドの間にスパイキ昇降機構によりスパイキを差し込みループ部固定回転機構によりワイヤロープを回転することによりスパイキで形成した隙間をこじ開けてその撚りストランド間の間隙にワイヤロープの撚り方向と同じ方向で一束目のストランドの先端を手動で差し込んで間隙からワイヤロープ周面に突出し、ストランド引張り機構により束ストランドの突出端部を引張り、他の各束ストランドの自由端も同様に異なるストランドの隙間を挿通して引っ張っていき、最終的には、ばらばらに解舒した各束ストランドの自由端をすべて各ストランドの異なる隙間に挿通し、かかる作業を数回繰返し、次いで、ワイヤロープの撚り方向と逆の方向に上記と同じ作業を行い、次いで、突出した各束ストランド先端を更に2組の細束に分岐し、その1組目の細束ストランドはワイヤロープ表面から所望の長さで切断すると共に、すでに切断した1組目の細束ストランドの先端の切断部分をワイヤロープ中心部に内包した心綱の一部を抜いて形成した芯部空隙中に挿入格納し、次いで、切断しない他の組の細束ストランドはワイヤロープの撚り方向と逆の方向となるようにそれぞれ異なるストランドの間隙に挿通し、かかる作業を数回繰返し、かかる数回の切断しない細束ストランドの挿通作業が完了した後は、最終的に切断していない細束ストランドの自由端を切断し、スパイキで形成したストランドの間隙から、切断部分をワイヤロープ中心部に内包した心綱の一部を抜いて形成した芯部空隙中に挿入格納し、ワイヤロープ周面から突出しない状態とした
ことを特徴とする請求項2に記載の装置を用いたトゲのないワイヤロープの玉掛索製造方法。 - 請求項1に記載の束ストランド形成工程と、巻差し工程と、かご差し工程と、細束ストランド形成工程と、内層線切断工程と、内層線先端押込み工程と、細束ストランドかご差し工程と、外層線切断工程と、外層線先端押込み工程により製造したトゲのないワイヤロープの玉掛索。
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JP2011219895A (ja) * | 2010-04-09 | 2011-11-04 | Stas Co Ltd | トゲのないワイヤロープの玉掛索製造方法及びトゲのないワイヤロープの玉掛索 |
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