KR20030004629A - A torsion compensation mechanism of wire rope for pulling and towing a large-sized structure - Google Patents

Abstract

PURPOSE: A torsion offsetting apparatus of a wire rope for pulling a large structure is provided to prevent damage of the wire rope and accidents by offsetting torsion from remaining stress and to reduce loss by restricting breakage of the structure. CONSTITUTION: A torsion offsetting device of a wire rope is composed of first fixing plates(40) having first fixing plates(15), and first fixing units(17) including first guide grooves; a first fixing part(5) having a first assembling pin(3) including a first insertion hole(20), and a first fixing pin(4) inserted to the first insertion hole; second fixing plates(45) having second plates(21) and second fixing units(22) including second guide grooves; a second fixing part(9) having a second assembling pin(7) and a second fixing pin(8) inserted to a second insertion hole(20a); and a rotary connecting shaft(10) having a central shaft(26) inserted to a first guide groove(19) and a second guide groove having a fitting part(27) restricting separation of fixing units. Accidents are prevented by restricting breakage and damage with offsetting torsion.

Description

A TORSION COMPENSATION MECHANISM OF WIRE ROPE FOR PULLING AND TOWING A LARGE-SIZED STRUCTURE}

The present invention relates to a wire rope torsion canceller for towing and towing of a large structure, and more particularly, to safely offset the torsion generated in the wire rope during the towing or towing of a large structure using a wire rope. It can be done to reduce time and economic losses.

In general, steel wire rope is used as a means of towing or towing a large land and offshore structure, and this steel wire rope twists dozens of wire strands on its outer circumference around a core wire The strand is made by combining 6-8 strands again and twisted into Z- or S-twist spirals.

The most commonly used means of transporting crude oil, gas, water and the like are pipelines including oil pipelines, water pipelines and gas pipelines. The way of installing these pipelines can be categorized into land and non-land land (ocean, river). Especially, the installation of pipelines in non-land areas is undersea towing, sea towing, sea towing and sea towing. It is made by the method, and the above-mentioned towing or towing work using the wire rope requires careful attention because the size and weight of the structure are quite large.

In general, when the wire rope is connected to the structure to tow the structure by using the above-described methods, the wire rope is moved to the work site while being wound on the spool, and then loosened and connected. The torsional phenomenon caused by the residual stress that tries to maintain is generated, and this initial torsion increases as the work progresses.

It is practically impossible to offset the initial torsion once occurred, and if this work continues without offsetting the torsion, enormous force is applied to the wire rope along with the tension according to the towing or towing. Therefore, even with a small tensile force, the wire rope itself may be severely damaged, and in some cases, the wire rope may be cut.

In addition, due to the initial residual stress, the wire rope may be partially wound due to the change of the small towing force, which causes local stress concentration and eventually the wire rope is cut.

In addition, the torsional force as described above is also transmitted to the structure to cause the rotation of the structure, the rotation of the structure is a safety impediment that can cause damage to the structure or to cause large accidents.

As described above, when the wire rope is cut or the structure is rotated, the economic and time loss is not only enormous, but also can lead to large casualties. Therefore, the initial torsional force of the wire rope used for the towing and towing of the large structure can be reduced. There is an urgent need for a device that can offset itself and that can offset the torsion that continues to occur during work.

Conventionally, various tools have been devised and used for such a purpose. In general, the towing of the structure by using the wire rope is coupled to the end of the wire rope is connected to the wire socket, which is a connecting auxiliary member, and provided with a ring-shaped ring to connect the wire socket on one side, the structure to be towed Simple hook-type snap hooks with hooks on one side for easy hooking to pad-eyes, or swivels with bearings between hooks and hooks as a means to reduce torsional stresses generated by wire ropes when connected to tow structures Swivel hooks are used, but most of them are capable of supporting small loads, and they can be rotated in both directions by the bearings (wire side where the structure and hooks are connected). The two parts turn together due to the elasticity of the rope To a result, there is firmly fixed to the structure to be towed or towing is impossible is a firm fixing prevent rotation of the structure is associated with the required part to prevent damage to the connection problem.

In order to solve such problems of the prior art,

An object of the present invention is to cancel the initial torsion due to the residual stress of the wire rope used in the towing and towing of large structures and torsion continuously occurring during the working period to cut the wire due to local stress concentration, etc. To prevent accidents and to prevent the large structures connected to the wire during towing or towing, the large structure towing and towing wire rope torsion offset machine to prevent the damage of the structure to perform the work safely. .

1 is an exploded perspective view of a torsion canceller according to the present invention;

2 is a front view of a torsion canceller according to the invention;

3 is a front view of a state in which one side of the torsion canceller according to the present invention is separated;

4 is a plan view of a torsion canceller according to the invention;

5 is a cross-sectional view taken along the line A-A of FIG.

Figure 6 is a front view showing another embodiment according to the present invention.

7 is a plan view showing another embodiment according to the present invention.

<Brief description of symbols for main parts of the drawings>

2: pad eye 3: first coupling pin

4: 1st locking pin 5: 1st fixed

6: wire socket 7,55: second coupling pin

8,54: Second pin 9,60: Second pin

10,65: Rotary connection shaft 13: Support ring

14: friction ring 15: the first plate

16: 1st support ring 17: 1st fixture

18: First friction ring 19: First guide groove

21: the second plate 22: the second fixture

23: 2nd friction ring 24: 2nd support ring

25: 2nd guide groove 27, 28, 51: locking part

26: center shaft 29, 29a, 30, 30a, 61, 62: bushing

40: 1st fixed plate 45: 2nd fixed plate

52: socket connecting plate 57: wedge groove

The present invention for achieving such an object,

In the mechanism for offsetting the twisting of the wire rope generated during towing by connecting the pad eye provided in the structure for the towing of the large structure and the wire socket that is the fastening auxiliary member of the wire rope,

Two first holes formed on one side and including a first plate having a first thickness having a predetermined thickness and a first guide groove having a semi-cylindrical shape that is coupled to the other side of the first plate. Fixed plate,

The first insertion pin is inserted into the coupling hole in the state in which the pad eye provided in the structure is sandwiched between the first fixing plate and the first insertion pin having the first insertion hole at the insertion end, and the first insertion pin for fixing the first coupling pin. A first fixing part including a first fixing pin inserted into the ball;

Two second fixing plates, including a second plate having a coupling hole formed at one side and having a predetermined thickness, and a second fixing tool having a semi-cylindrical second guide groove which is coupled to the other side of the second plate. and,

A second coupling pin inserted into the coupling hole in a state in which the wire socket is inserted between the second fixing plates, and having a second insertion hole at the insertion end; and the second insertion hole to fix the second coupling pin. A second fixing part including a second fixing pin inserted into the second fixing part; And

A central shaft inserted into the first guide groove of the first fixture, the second guide groove of the second fixture, and a hook integrally provided at both ends of the central shaft to prevent separation from the first and second fixtures It is configured to include a portion, the rotation connecting shaft for connecting the first fixing part and the second fixing part; provides a large-scale structure towing and towing wire rope torsion canceller comprising a.

A plurality of bushings may be interposed between the outer circumferential surface of the central shaft constituting the rotation connecting shaft and the first and second guide grooves of the respective fixtures adjacent to the rotating shaft to facilitate rotation.

In order to minimize the gap between each of the first plate and the pad eye and each of the second plate and the wire socket and to minimize damage due to friction, it is coupled to the inner surface of each coupling hole provided in each plate and the coupling A first and a second support ring composed of one or a plurality of ring-shaped plates having a hole communicating with the hole, and a ring-shaped first and second friction ring coupled to the front surface of the first and second support rings. Each has a feature that can be provided.

In addition, in the mechanism for offsetting the twist of the wire rope at the time of towing by connecting the horseshoe-type wire socket which is the fastening auxiliary member of the wire rope and the pad eye provided in the structure for the towing of the large structure,

Two first fixing plates formed with a coupling hole formed on one side and including a first plate having a first thickness having a predetermined thickness and a first guide groove having a semi-cylindrical shape, which is coupled to the other side of the first plate. and,

A first coupling pin inserted into a coupling hole in a state where a pad eye provided in the structure is sandwiched between the first fixing plate and having a first insertion hole at an end of an insertion side, and the first coupling pin to fix the first coupling pin; A first fixing part including a first fixing pin inserted into the first insertion hole;

The side to which the horseshoe wire socket is connected has a semi-circular shape and a coupling hole is formed, and the socket connection plate is formed to have a predetermined thickness and the other side is made wedge-shaped and thin.

A second coupling pin inserted into a coupling hole in a state where the socket connecting plate is inserted into a horseshoe-shaped wire socket to which a wire rope is connected, and having a second insertion hole formed at an insertion end, and a second coupling pin to fix the second coupling pin; A second fixing part including a second fixing pin inserted into the insertion hole; And

A taper having a cylindrical portion on one side inserted into and fixed to the first guide groove of the first fixture provided in the first fixing portion, and a wedge-shaped groove for coupling the socket connecting plate constituting the second fixing portion. And a rotating connecting shaft configured to include a locking portion for preventing the first fixing portion and the second fixing portion from being separated at the end of the cylindrical portion. Provide a flag.

A plurality of bushings may be interposed between the outer circumferential surface of the cylindrical portion included in the rotation connecting shaft and the first guide groove of the first fixing tool adjacent thereto to smooth the rotation.

One having a hole connected to the inner surface of each engaging hole provided in each plate and in communication with the engaging hole in order to minimize the gap between the first plate and the pad eye and to minimize damage due to friction. Or a first support ring composed of a plurality of ring-shaped plates and a ring-shaped first friction ring coupled to the front surface of the first support ring.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a torsion canceller according to the present invention, FIG. 2 is a front view of the torsion canceller according to the present invention, and FIG. 3 is a front view of a state in which one side of the torsion canceller according to the present invention is separated. 4 is a plan view of a torsion canceller according to the present invention, Figure 5 is a cross-sectional view taken along the line A-A of FIG.

As a preferred embodiment, the wire rope torsion canceller 1 according to the present invention includes a pad eye 2 and a pad eye 2 provided on one side of a structure not shown, as shown in FIGS. 1 to 5. A first fixing pin (5) fixed to the first coupling pin (3) and the first fixing pin (4), and a second coupling pin (7) to the wire socket (6) connected to the end of the wire rope; The second fixing part (9) which is fixed by the second fixing pin (8), and the first and second fixing parts (5) (9) to the rotary connecting shaft 10 to be rotatably connected in a non-separated state Consists of.

Here, the pad eye 2 is a plate 11 having a predetermined thickness, and the portion connected to the structure side is wide and narrow in shape, and in order to increase the strength of the pad eye 2, both sides of the free end are The support ring 13 having the engaging hole 12 is fixed by a method such as welding.

In addition, a friction ring 14 having the same shape as the support ring 13 is provided on the front surface of the support ring 13 in order to reduce the frictional force in the state of being connected to the first fixing part 5. The plate 11 and the support ring 13 and the friction ring 14 provided on both sides of the first coupling pin 3 included in 5) penetrate.

The first fixing part 5 has a first plate 15 having a predetermined thickness, the side of which is connected to the pad eye 2 has a semicircular shape and a coupling hole is formed, and the other side thereof has a straight shape. A first support ring 16 coupled to one side of the inner surface of the first plate 15 by welding or the like and having one or more ring-shaped plates having a hole communicating with the coupling hole; The first support ring 16 is configured to include a ring-shaped first friction ring 18 coupled to the front surface of the first support ring 16 by a welding method or the like and a first fixing tool 17 coupled to the other side by welding or the like. Two first fixing plates 40; It comprises a first coupling pin (3) and the first fixing pin (4),

The pad eye 2 is positioned between the first fixing plate 40, and the coupling holes formed therein are aligned to each other, and then the first coupling pins 3 are inserted into the holes to be coupled to each other. After the coupling of (3) is fitted to the first fixing pin (4) to the protruding end is coupled to prevent the first coupling pin (3) from being separated.

In addition, the first fixing tool 17 is formed with a semi-cylindrical first guide groove 19 integrally, and at one end of the first coupling pin 3, the first fixing pin 4 as described above. Insertion hole 20 for inserting is formed.

Here, the first support ring 16 and the friction ring 18 minimize gaps between the pad eye 2 and the first plate 15, minimize damage caused by friction, and provide 1-degree of freedom. It plays a role of facilitating work by smoothly rotating motion only.

The second fixing part 9 is coupled to one side of the inner surface of the second plate 21 by a method such as welding the second plate 21 having a form symmetrical with the first plate 15 and the A second support ring 24 composed of one or a plurality of ring-shaped plates having a hole communicating with the coupling hole, and a ring-shaped agent joined to the front surface of the second support ring 24 by welding or the like; Two second fixing plates 45 including a second friction ring 23 and a second fixing tool 22 coupled to the other side by welding or the like; It comprises a second coupling pin (7) and the second fixing pin (8),

The wire sockets 6 are sandwiched between the second fixing plates 45 and positioned so that the coupling holes formed therein coincide with each other. Then, the second coupling pins 7 are inserted into the coupling holes to be engaged. A second fixing pin 8 is inserted into the protruding end of the coupling pin 7 so as to prevent the second coupling pin 7 from being separated.

The semi-cylindrical second guide groove 25 is integrally formed in the second fixing tool 22, and the second fixing pin 8 is also formed at one end of the second coupling pin 3 as described above. An insertion hole 20a for insertion is formed.

Here, the second support ring 24 and the second friction ring 23 minimize the gap between the wire socket 6 and the second plate 21, minimize the damage caused by friction, and It plays a role of facilitating work by smoothly rotating motion of freedom.

The rotary connecting shaft 10 is inserted into the first and second guide grooves 19 and 25 provided in the first and second fixing holes 17 and 22 to fix the first and second fixing parts 5 and 9. To allow the second fixing section 9 to rotate relative to the first fixing section 5 in order to be able to offset the torsional force. In order to prevent) from being separated, the locking portions 27 and 28 are integrally provided at both ends of the cylindrical central shaft 26 having a predetermined length.

In addition, the coupling between the central shaft 26 and the first and second guide grooves 19 and 25 is smoothly provided through the bushings 29, 29a, 30 and 30a having a cylindrical half split therebetween. It is provided to be rotated.

The torsion canceler configured as described above is located between the two first fixing plates 40 constituting the first fixing part 5, the pad eye 2 provided in the structure is aligned, and the coupling holes formed in each of the By inserting the first coupling pin (3), the first coupling pin (3) can be connected simply by inserting the first fixing pin (4) into the insertion hole 20 formed in the protruding end,

On the contrary, when the separation is performed, the first fixing pin 4 is pulled out, and then the first coupling pin 3 is pulled out.

In addition, the wire socket 6 is similarly positioned after the wire socket 6, in which the wire rope is coupled, between the two second fixing plates 45 constituting the second fixing part 9, and matching the coupling holes formed in each. By inserting the second coupling pin (7), and by inserting the second fixing pin (8) in the insertion hole formed in the protruding end of the coupling of the second coupling pin (7),

On the contrary, when separating, the second fixing pin 8 is pulled out from the insertion hole 20a. Subsequently, the second coupling pin 7 can be easily removed by removing the second coupling pin 7.

The wire rope connected to the structure by using the torsion canceller is torsional force generated by the residual stress of the wire rope in the process of towing the structure or rotating the spool provided in the winding device to adjust the length of the wire. In operation, the second fixing part 9 to which the wire socket 6 is connected, and the first fixing part 5 fixed to the structure are connected to the rotary connecting shaft 10, thereby fixing the first fixing part 5 to the structure. In this state, only the second fixing part 9 is rotated with respect to the first fixing part to solve the torsional force due to the residual stress.

And the towing force necessary to turn off the structure through the wire rope is transmitted through the second fixing portion 9 and the rotary connecting shaft 10 and the first fixing portion 5, the rotary connecting shaft 10 is the central axis ( 26 and the locking holes 27 and 28 provided at both ends of the central shaft 26, the locking portions 27 and 28 are formed in the first and second fixing holes 17 and 25. The movement of the direction is restrained to prevent the first and second fixing parts 5 and 9 from being separated from each other.

6 is a front view showing another embodiment according to the present invention, Figure 7 is a plan view showing another embodiment according to the present invention.

As another preferred embodiment of the present invention, the wire rope torsion canceller of the present invention, as shown in Figs. 6 to 7, the pad eye 2 and the pad eye 2 provided on one side of the structure not shown The second coupling pin 55 to the first fixing part 5 fixed by the first coupling pin 3 and the first fixing pin 4, and the horseshoe type wire socket 53 connected to the end of the wire rope. And a second fixing part 60 fixed to the second fixing pin 54 and a rotation connecting shaft 65 rotatably connecting the first and second fixing parts 5 and 60 without being separated. It consists of.

The first fixing part 5 coupled to the pad eye 2 of the structure is similar to the first embodiment, and the side connected to the pad eye 2 has a semicircular shape, and a coupling hole is formed and the other side opposite thereto is One having a first plate 15 having a predetermined thickness having a straight shape, and a hole coupled to one side of the inner surface of the first plate 15 through a welding or the like and communicating with the coupling hole. Alternatively, a first support ring 16 composed of a plurality of ring-shaped plates, a ring-shaped first friction ring 18 coupled to a front surface of the first support ring 16 by a welding method, and the other side are welded. Two first fixing plates 40 including a first fixing tool 17 coupled to each other by a method such as; It comprises a first coupling pin (3) and the first fixing pin (4),

As in the first embodiment, the pad eye 2 is sandwiched and positioned between the first fixing plate 40, and the coupling holes formed in each of them are coincident with each other, and then the first coupling pin 3 is inserted into the hole to be coupled. The first fixing pin 4 is inserted into the protruding end of the inserted first coupling pin 3 to prevent the first coupling pin 3 from being separated from the first coupling pin 17. The semi-cylindrical first guide groove 19 is formed integrally, and an insertion hole 20 for inserting the first fixing pin 4 into one end of the first coupling pin 3 as described above. ) Is formed.

Again, the first support ring 16 and the friction ring 18 minimize gaps between the pad eye 2 and the first plate 15, minimize damage caused by friction, and provide 1-freedom. It plays a role of facilitating the work by smoothly rotating only the movement.

The second fixing part 60 is designed to enable the use of a horseshoe-type wire socket that is used in the form of a coupling auxiliary member of a wire rope as greatly different from the first embodiment.

The side where the horseshoe-shaped wire socket 53 is connected has a semicircular shape, a coupling hole is formed, and has a predetermined thickness, and the other side is a socket connecting plate 52 formed to be thin in a wedge shape, and the socket connecting plate A second coupling pin 55 inserted into the coupling hole in the state where the wire rope is connected to the horseshoe-shaped wire socket connected to the wire rope, and having a second insertion hole 59 formed at the insertion end; And a second fixing pin 54 inserted into the second insertion hole 59 to fix 55).

The rotary connecting shaft 65 is inserted into the first guide groove 19 of the first fixing tool 17 provided in the first fixing part 5 and fixed to one side of the cylindrical portion 50, the second The tapered portion 58 is formed with a wedge-shaped groove 57 for engaging the socket connecting plate 52 of the fixing portion 60, and the first fixing portion 5 and the first fixing portion 5 at the end of the cylindrical portion 50 side. It consists of a locking part 51 which prevents 2 fixing parts 60 from being separated.

A plurality of bushings serve as a bearing between the outer circumferential surface of the cylindrical portion 50 included in the rotation connecting shaft 65 and the first guide groove 19 of the first fixing tool 19 to facilitate rotation. (61) and 62 are featured.

In addition, the rotary connecting shaft 65 is welded in a state where the wedge-shaped groove 57 is provided in contact with a portion where the thickness becomes thin in a wedge shape as described above on one side of the socket connecting plate 52. Coupled to have a feature that is formed integrally.

The torsion canceller of this second embodiment is used when the horseshoe type wire socket is used as a joining auxiliary member of the wire rope, and is connected to the pad eye 2 provided in the structure as in the first embodiment. By rotating the rotation connecting shaft 65 integrally coupled to the second fixing part 60 with respect to the government part 5, the torsion generated in the wire rope is canceled to prevent rotation of the structure, and the wire rope is cut. The accident can be prevented in advance.

Although the present invention has been described in detail only with respect to specific embodiments as described above, it is apparent to those skilled in the art that modifications and changes can be made within the scope of the technical idea of the present invention, and such modifications or changes are the patent of the present invention. Will belong to the claims.

As described above, the large-structure towing and towing wire rope torsion canceller of the present invention not only works in the sea such as the sea towing, sea towing, sea towing, sea towing, etc. The torsion caused by the torsion of the wire rope caused by the residual stress generated in the process of towing or towing the large structure for installation or to unwind the wire rope moved to the site while being wound on the spool to fix the installed structure with the wire rope. The second fixing part rotates about the rotating connecting shaft with respect to the first fixing part fixed to the side, thereby canceling the wire rope from being cut by twisting, and preventing damage to the structure by preventing the connected structure from rotating. Prevention and various safety accidents can be obtained, And it will have a significant effect to prevent the exceptional economic and time losses in accordance with the prevention of accidents such.

Claims (6)

In the mechanism for offsetting the twisting of the wire rope generated during towing by connecting the pad eye provided in the structure for the towing of the large structure and the wire socket that is the fastening auxiliary member of the wire rope, A coupling hole is formed at one side and includes a first plate 15 having a predetermined thickness, and a first fixing tool 17 having a semi-cylindrical first guide groove which is coupled to the other side of the first plate. Two first fixing plate 40 is configured, A first coupling pin 3 inserted into the coupling hole in the state where the pad eye provided in the structure is inserted between the first fixing plate 40 and having the first insertion hole 20 at the insertion side end; A first fixing part 5 including a first fixing pin 4 inserted into the first insertion hole 20 to fix the first coupling pin 3; A second fixing tool having a coupling hole formed at one side and having a predetermined thickness and a second guide groove 25 having a semi-cylindrical shape, which is coupled to the other side of the second plate 21. Two second fixing plates 45 including 22), A second coupling pin 7 inserted into the coupling hole in a state in which the wire socket 6 is inserted between the second fixing plates 45 and having a second insertion hole 20a at the insertion end; A second fixing part (9) comprising a second fixing pin (8) inserted into the second insertion hole (20a) to fix the two coupling pins (7); And A central shaft 26 inserted into the first guide groove 19 of the first fixture 17, the second guide groove 25 of the second fixture 22, and separated from the first and second fixtures It is configured to include a locking portion 27, 28 that is integrally provided at both ends of the central axis 26 to prevent the connection, the first fixing portion 5 and the second fixing portion 9 is connected to Rotating connecting shaft 10; Tow and tow wire rope torsion canceller for large structures, characterized in that comprises a. The method of claim 1, It serves as a bearing between the outer circumferential surface of the central shaft 26 constituting the rotary connecting shaft 10 and the first and second guide grooves 19 and 25 of the respective fixtures 17 and 22 adjacent thereto. A large structure towing and towing wire rope torsion canceller, characterized in that a plurality of bushings 29, 29a, 30, 30a to facilitate the rotation. The method of claim 1, In order to minimize gaps between the first plate 15 and the pad eye and the second plate 21 and the wire socket, and to minimize damage due to friction, the plates 15 and 21 are provided on the plates 15 and 21. First and second support rings (16) and (24) composed of one or a plurality of ring-shaped plates which are connected to the inner side surfaces of the respective engaging holes and have holes communicating with the engaging holes. A large rope towing and towing wire rope torsion canceller, characterized in that it can be provided with a ring-shaped first and second friction rings (18, 23) respectively coupled to the front of the two support rings (16, 24). . In the mechanism for offsetting the twisting of the wire rope at the time of towing by connecting the horseshoe-type wire socket that is the fastening auxiliary member of the wire rope and the pad eye provided in the structure for the towing of the large structure, A coupling hole is formed at one side, and includes a first plate 15 having a predetermined thickness and a first fixture 17 having a semi-cylindrical first guide groove that is coupled to the other side of the first plate. Two first fixing plate 40 to be, A first coupling pin 3 inserted into the coupling hole in the state where the pad eye provided in the structure is inserted between the first fixing plate 40 and having the first insertion hole 20 at the insertion side end; A first fixing part 5 including a first fixing pin 4 inserted into the first insertion hole 20 to fix the first coupling pin 3; The side where the horseshoe-shaped wire socket 53 is connected has a semicircular shape and a coupling hole is formed, and has a predetermined predetermined thickness and the other side of the socket connecting plate 52 formed to be thin in a wedge shape, The socket connecting plate 52 is inserted into the coupling hole in a state where the wire rope is connected to the horseshoe-shaped wire socket 53 and the second coupling pin 55 having a second insertion hole 59 formed at the insertion side end; A second fixing part including a second fixing pin (54) inserted into the second insertion hole (59) to fix the second coupling pin (55); And The cylindrical part 50 of one side which is inserted into and fixed in the first guide groove 19 of the first fixing tool 17 provided in the first fixing part 5 and the second fixing part 60 is constituted. The tapered portion 58 is formed with a wedge-shaped groove 57 for engaging the socket connecting plate 52, and the first fixing portion and the second fixing portion 60 are separated at the end of the cylindrical portion 50. Rotation connecting shaft (65) comprising a catching portion (51) to prevent the large structure towing and towing wire rope torsion canceller comprising a. The method of claim 4, wherein A plurality of smooth rotations by serving as a bearing between the outer circumferential surface of the cylindrical portion 50 included in the rotary connecting shaft 65 and the first guide groove 19 of the first fixing tool 17 adjacent thereto. Large structure towing and towing wire rope torsion canceller, characterized in that the bushing (61) (62) can be interposed. The method of claim 4, wherein In order to minimize the gap between the first plate 15 and the pad eye and to minimize damage due to friction, the plate 15 is coupled to the inner side of each coupling hole provided in the plate 15 and communicates with the coupling hole. A first support ring 16 composed of one or a plurality of ring-shaped plates with holes and a ring-shaped first friction ring 18 coupled to the front surface of the first and second support rings 16, respectively. Large structure towing and towing wire rope torsion canceller, characterized in that it can be provided.