Mounting method of loop steel wire rope

Abstract

The invention discloses a loop steel wire rope mounting method which comprises the specific steps that a winch is hoisted to the position behind a loop steel wire rope tensioning device, a winch steel wire rope is arranged in the winch, and the diameter of the winch steel wire rope is smaller than that of the loop steel wire rope; hoisting the loop steel wire rope in a reel packaging form to a position behind the fixed end of the loop steel wire rope; a winch steel wire rope penetrates to the position of the fixed end of the loop steel wire rope along the preset path of the loop steel wire rope; connecting a winch steel wire rope with one end of a loop steel wire rope; a winch steel wire rope is pulled through a winch; finally, the first end of the loop steel wire rope is located at the position of the winch; the second end of the loop steel wire rope is connected with the fixed end of the loop steel wire rope; the first end of the loop steel wire rope is fixed to a loop steel wire rope tensioning device; and completing installation of the loop steel wire rope. The loop steel wire rope does not need to be manually arranged in a penetrating mode, and time and labor are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment installation, and particularly relates to an installation method for a loop wire rope. Background Art

[0002] In the production process of the pickling - cold rolling combined unit, the horizontal loop is usually designed below the pickling tank. There are 3 horizontal loops, namely the inlet loop, the outlet loop, and the online loop. Their function is to ensure that during the welding of the strip steel, the replacement of the shear blade of the circular shear, the width adjustment, and the coil discharging at the outlet section, the process section can still maintain the normal pickling speed without stopping, so as to achieve continuous production.

[0003] The loop car adopts a pulley - block drive form, and 3 active pulleys (rope wheels) are respectively driven by 3 AC variable - frequency motors through speed reducers. One end of the wire rope is fixed. After being wound around the passive rope wheels of the loop car, it first winds into the first active rope wheel, then winds into the first active rope wheel again, and finally winds out from the first active rope wheel. After the wire rope winds out, it is redirected by a fixed passive pulley, winds back to another set of passive rope wheels on the loop car, winds out from the loop car and then is redirected by another fixed passive pulley, and finally is connected to the wire - rope tensioning device.

[0004] The specifications of the wire ropes for the inlet loop are Ø44×600M, for the outlet loop are Ø44×530M, and for the online loop are Ø44×615M. During the installation process of the loop wire ropes, due to the large volume of the loop wire ropes, it is extremely time - consuming and laborious. Therefore, it takes dozens of workers 3 days to complete the installation. If the personnel do not exert force coordinately, it is easy to get their hands injured, and there are potential safety hazards.

[0005] Therefore, there is an urgent need for a convenient and labor - saving installation method for loop wire ropes at present. Summary of the Invention

[0006] The purpose of the present application is to solve the problem of difficult installation of loop wire ropes in the prior art. Therefore, the present invention provides an installation method for loop wire ropes. First, a thinner hoist wire rope is threaded along a preset path, then the hoist wire rope is connected to the loop wire rope, and finally the hoist wire rope is pulled to lay the loop wire rope along the preset path. It is convenient and fast, does not require manual threading of the loop wire rope, and saves time and labor.

[0007] To achieve the above - mentioned purpose, the present invention provides an installation method for loop wire ropes, which is used to install the loop wire rope onto the loop car along a preset path. After installation, the first end of the loop wire rope is arranged at the loop - wire - rope tensioning device, and the second end is arranged at the loop - wire - rope fixed end.

[0008] First, it should be noted that the preset path of the loop wire rope is as follows: the first end of the loop wire rope is fixed, and the second end is first wound around the loop car sheave and then enters the driving sheave. After exiting the driving sheave, it is redirected by the driven pulley and then wound back onto another set of loop car sheaves on the loop car. After exiting the loop car sheaves, it is redirected by another fixed driven sheave and finally connected to the loop wire rope tensioning device.

[0009] The specific steps include:

[0010] S1: Lift the winch to a position behind the loop wire rope tensioning device. The winch is equipped with a winch wire rope, and the diameter of the winch wire rope is smaller than that of the loop wire rope;

[0011] Lift the loop wire rope in the form of a reel package to a position behind the fixed end of the loop wire rope;

[0012] S2: Operate the winch to release the winch wire rope and thread the winch wire rope along the preset path of the loop wire rope to the position of the fixed end of the loop wire rope;

[0013] S3: Connect the winch wire rope to one end of the loop wire rope;

[0014] S4: Pull the winch wire rope through the winch, and at the same time, the winch wire rope drives the loop wire rope to be threaded onto the loop car according to the preset path;

[0015] Finally, make the first end of the loop wire rope located at the position of the winch;

[0016] S5: Connect the second end of the loop wire rope at the fixed end position of the loop wire rope to the fixed end of the loop wire rope;

[0017] S6: Determine the length of the loop wire rope according to the drawing and determine the pre-cutting position of the loop wire rope according to the length;

[0018] S7: Use a chain block to pull and fix the loop wire rope behind the pre-cutting position;

[0019] S8: Cut the loop wire rope at the pre-cutting position to form a new first end of the loop wire rope;

[0020] S9: Keep the extending end of the loop wire rope tensioning device in the extended state and fix the first end of the loop wire rope to the loop wire rope tensioning device;

[0021] S10: Remove the chain block to release the fixation of the loop wire rope and complete the installation of the loop wire rope.

[0022] By threading the thinner and lighter hoist wire rope through the loop car along a preset path first, then connecting the hoist wire rope and the loop wire rope, and pulling the loop wire rope with the thinner hoist wire rope to install the loop wire rope into the preset track, manual threading is not required, which reduces the labor intensity, improves the installation efficiency, reduces the risk of hand injury, and enhances safety.

[0023] In some embodiments, a transition wire rope is provided between the loop wire rope and the hoist wire rope, and the diameter of the transition wire rope is between that of the loop wire rope and the hoist wire rope;

[0024] The loop wire rope and the transition wire rope, as well as the transition wire rope and the hoist wire rope, are all connected by lap welding.

[0025] Due to the large diameter difference between the loop wire rope and the hoist wire rope, adopting the above implementation scheme and setting a transition wire rope between them can prevent jamming during the pulling process and make the pulling process smoother.

[0026] In some embodiments, in step S7, a fixing rope with a rope loop is provided behind the pre-cut position of the loop wire rope. The manual hoist is connected to the rope loop of the fixing rope, and the loop wire rope is pulled and fixed through the fixing rope;

[0027] The fixing rope is wound around the loop wire rope and fixed by a wire rope clip. The wire rope clip is sleeved on the loop wire rope and the fixing rope to clamp and fix the fixing rope on the loop wire rope.

[0028] The specific winding method is as follows: The fixing rope is closely attached to the loop wire rope. One end of the fixing rope winds around the loop wire rope to form a rope loop, and then this end of the fixing rope passes backward under the fixing rope, so that the fixing rope presses on the rope loop;

[0029] The fixing rope is wound around the loop wire rope multiple times to form multiple rope loops, and is fixed by the wire rope clips before and after the rope loops.

[0030] Adopting the above implementation scheme, the entire loop wire rope can be more conveniently pulled by the manual hoist through the wire rope clip and the fixing rope.

[0031] In some embodiments, in step S1, the loop wire rope in the form of a reel package is sleeved on the wire rope reel sling. Both ends of the wire rope reel sling are lifted by lifting ropes to make the pulling height level with the rope wheel of the loop car;

[0032] The loop wire rope in the form of a reel package can rotate on the wire rope reel sling and release the loop wire rope;

[0033] The loop wire rope is pulled out from above the wire rope reel sling.

[0034] By adopting the above implementation scheme, a more space-saving packaging method for the loop wire rope reel is provided, with less friction during the wire pay-out process. The loop wire rope in the form of a reel package arranged on the wire rope reel sling can continuously output the loop wire rope, avoiding entanglement of the loop wire rope. In addition, it is pulled out from the upper side of the wire rope reel sling to prevent the loop wire rope reel from rotating.

[0035] In some embodiments, before step S5, the loop wire rope in the form of a reel package is removed, and the end rope head of the loop wire rope is pulled to the position of the fixed end of the loop wire rope.

[0036] After the loop wire rope is threaded through the preset path, the end of the loop wire rope is fixed.

[0037] In some embodiments, before installing the hoist wire rope, the loop car is fixed from both sides of the loop car by a chain block.

[0038] After the loop wire rope is installed, the chain block on the loop car is removed.

[0039] By adopting the above implementation scheme, it is possible to prevent the loop car from moving during the installation of the loop wire rope, improving safety.

[0040] In some embodiments, the hoist wire rope and the loop wire rope also pass through the driving active sheave of the loop wire rope.

[0041] Before step S6, the coupling of the active sheave needs to be in a disconnected state before jogging the hoist, reducing the resistance suffered when the wire rope is pulled.

[0042] By adopting the above implementation scheme, the coupling between the driving wheel and the gearbox is disconnected, which can effectively avoid the resistance of the large gear of the gearbox driving the small gear to rotate. When the active sheave is in an automatic state during installation, it is convenient to pull the loop wire rope.

[0043] In some embodiments, the hoist needs to be jogged before step S7 to eliminate the sinking stress of the loop wire rope.

[0044] Generally speaking, compared with the prior art, the present invention provides an efficient method for installing a loop wire rope. Under the initial condition that the equipment is not running, the loop wire rope is installed. The thinner hoist wire rope is pulled by a hoist, and then the loop wire rope is driven to be threaded. The thickness difference between the hoist wire rope and the loop wire rope is large, and a transition wire rope is used for transition in the middle to reduce the jamming situation during the pulling process, making the pulling smoother.

[0045] Other features and corresponding beneficial effects of the present application will be described in the following part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in the specification of the present application. Description of the Drawings

[0046] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, the present invention, its features, shapes, and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on showing the gist of the present invention.

[0047] Figure 1 Schematic diagram of the installation of the loop wire rope after the installation of the embodiment of the present invention is completed;

[0048] Figure 2 Schematic diagram of pulling the loop wire rope by the hoist wire rope in the embodiment of the present invention;

[0049] Figure 3 Schematic diagram of the connection between the hoist wire rope and the loop wire rope in the embodiment of the present invention;

[0050] Figure 4 Schematic diagram of pulling the loop wire rope by a chain block in the embodiment of the present invention;

[0051] Figure 5 Schematic diagram of lifting the loop wire rope by a wire rope reel sling in the embodiment of the present invention.

[0052] Description of the reference numerals in the drawings:

[0053] 1. Loop car; 2. Loop wire rope tensioning device; 3. Fixed end of the loop wire rope; 4. Rope wheel of the loop car; 5. Driving rope wheel; 6. Driven rope wheel; 7. Hoist; 71. Hoist wire rope; 8. Wire rope reel sling; 81. Loop wire rope; 9. Wire rope clip; 10. Fixed rope; 11. Transition wire rope; 12. Chain block; 13. Suspension rope. Detailed Embodiments

[0054] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the drawings.

[0057] Embodiment

[0058] See Figures 1-2 , this embodiment provides a method for installing a loop steel wire rope, which is used to install the loop steel wire rope onto a loop car according to a preset path. After installation, the first end of the loop steel wire rope 81 is arranged at the loop steel wire rope tensioning device 2, and the second end is arranged at the loop steel wire rope fixed end 3; wherein, the first end is marked as A in the figure, and the second end is marked as B in the figure.

[0059] First of all, it should be noted that the preset path of the loop steel wire rope 81 is: one end of the loop steel wire rope 81 is fixed, after being wound around the loop car rope pulley 4, it first winds into the driving rope pulley 5, after winding out from the driving rope pulley 5, it turns through the driven rope pulley 6, winds back to another set of loop car rope pulleys 4 on the loop car 1, after winding out from the loop car rope pulley 4, it turns through another fixed driven rope pulley 6, and finally connects to the loop steel wire rope tensioning device 2.

[0060] The specific steps for installing the loop steel wire rope include:

[0061] S1: Hoist the winch 7 to the position behind the loop steel wire rope tensioning device 2. The winch 7 is provided with a winch steel wire rope 71, and the diameter of the winch steel wire rope 71 is smaller than that of the loop steel wire rope 81; hoist the loop steel wire rope 81 in the form of a reel package to the position behind the loop steel wire rope fixed end 3; among them, the rigger should have a special type of work operation certificate issued by the state.

[0062] See Figure 5, Specifically, to facilitate the release of the loose loop wire rope 81 in the form of a reel package, in this embodiment, the loose loop wire rope 81 in the form of a reel package is sleeved on the wire rope reel sling 8. Both ends of the wire rope reel sling 8 are lifted by the lifting ropes 13 so that the pulling height is level with the loose loop car rope pulley (4); the loose loop wire rope 81 in the form of a reel package can rotate on the wire rope reel sling 8 and release the loose loop wire rope 81; the loose loop wire rope 81 is pulled out from above the wire rope reel sling 8.

[0063] Specifically, the wire rope reel sling 8 can be the working roll of a waste tension leveller.

[0064] Specifically, before installing the hoist wire rope 71, the two sides of the loose loop car 1 are fixed by the chain block 12 to prevent the loose loop car 1 from moving when installing the wire rope, thus improving safety.

[0065] S2: Operate the hoist 7 to release the hoist wire rope 71, and thread the hoist wire rope 71 along the preset path of the loose loop wire rope 81 to the position of the fixed end 3 of the loose loop wire rope. Among them, the operator should hold a special type of work operation certificate issued by the state. Before threading, it is necessary to use pliers to remove the binding wire at the head of the hoist wire rope 71 to prevent jamming.

[0066] See Figure 3 , S3: Connect the first end of the hoist wire rope 71 to the loose loop wire rope 81; a transition wire rope 11 is provided between the loose loop wire rope 81 and the hoist wire rope 71, and the diameter of the transition wire rope 11 is between that of the loose loop wire rope 81 and the hoist wire rope 71; both between the loose loop wire rope 81 and the transition wire rope 11 and between the transition wire rope 11 and the hoist wire rope 71 are connected by the method of overlapping and then welding.

[0067] Specifically, the welding method can be gas welding or electric welding. Before connection, it is necessary to confirm whether the specification size of the loose loop wire rope 81 conforms to the drawing.

[0068] S4: Pull the hoist wire rope 71 through the hoist 7. At the same time, the hoist wire rope 71 drives the loose loop wire rope 81 to be threaded onto the loose loop car 1 along the preset path; finally, the first end of the loose loop wire rope 81 is located at the position of the hoist 7, and the second end is located at the position of the fixed end 3 of the loose loop wire rope.

[0069] Specifically, before step S4, the coupling of the driving sheave 5 needs to be in the disconnected state before jogging the hoist 7 to reduce the resistance during pulling.

[0070] Specifically, before pulling, it is necessary to use a walkie-talkie to call and check and confirm whether each part meets the starting conditions of the hoist 7.

[0071] S5: Remove the loose loop wire rope 81 in the form of a reel package, and manually pull the end rope head of the loose loop wire rope 81, that is, the second end, to the position of the fixed end 3 of the loose loop wire rope; Connect the second end of the loose loop wire rope 81 to the fixed end 3 of the loose loop wire rope, and lift the loose loop wire rope reel to the storage position.

[0072] S6: Jog the hoist 7 to eliminate the sinking stress of the loose loop wire rope 81; Determine the length of the loose loop wire rope 81 according to the drawing, and determine the pre-cutting position of the loose loop wire rope 81 according to the length.

[0073] S7: Pull and fix the loose loop wire rope 81 behind the pre-cutting position by the chain block 12.

[0074] See Figure 4 , specifically, a fixing rope 10 with a rope loop is provided behind the pre-cutting position of the loose loop wire rope 81. The chain block 12 is connected to the rope loop of the fixing rope 10, and the loose loop wire rope 81 is pulled and fixed through the fixing rope 10;

[0075] The fixing rope 10 is wound around the loose loop wire rope 81 and fixed by the wire rope clip 9. The wire rope clip 9 is sleeved on the loose loop wire rope 81 and the fixing rope 10, and the fixing rope 10 is clamped and fixed on the loose loop wire rope 81.

[0076] Specifically, the fixing rope 10 is close to the loose loop wire rope 81. One end of the fixing rope 10 winds around the loose loop wire rope 81 for one circle to form a rope loop. Then, one end of the fixing rope 10 passes backward through the lower part of the fixing rope 10, so that the fixing rope 10 presses the rope loop;

[0077] The fixing rope 10 is wound around the loose loop wire rope 81 multiple times to form multiple rope loops, and is fixed by the wire rope clip 9 before and after the rope loops.

[0078] S8: Cut the loose loop wire rope 81 at the pre-cutting position to form the first end of the new loose loop wire rope 81.

[0079] S9: The hydraulic cylinder of the loose loop wire rope tensioning device 2 remains in the extended state, and the piston rod extended by the hydraulic cylinder should be well protected. Fix the first end of the loose loop wire rope 81 to the piston rod.

[0080] Specifically, it is fixed by the wire rope clip. The installation method, spacing and quantity of the wire rope clip should meet the installation requirements of the drawing and the specification (GB5976-2006).

[0081] S10: Remove the chain block 12 to release the fixation of the loose loop wire rope 81, and then remove the fixation of the loose loop carriage 1 to complete the installation of the loose loop wire rope 81.

[0082] In the previous installation process, it took about 3 days for manual labor (about 30 people) to install the steel wire ropes of the three loops according to the drawings. It was extremely laborious, time-consuming, and strenuous, and it was also unsafe. If the personnel exerted inconsistent force, it was easy to get their hands injured. However, in this embodiment, a single winch 7 can be used to replace manual operation. It only takes (5 - 7 people) 1 day to complete the installation of the steel wire ropes of the three loops, greatly improving work efficiency, reducing labor intensity, and enhancing construction safety.

[0083] In the embodiment of the present application, the steel wire rope 71 of the small-sized winch is used to guide the loop steel wire rope 81 to complete the installation of the loop steel wire rope 81, with higher efficiency. The transition steel wire rope 11 makes up for the large difference in thickness between the two steel wire ropes, avoiding jamming during the pulling process. The installation speed is fast and the efficiency is high.

[0084] Taking the horizontal loop steel wire rope as an example, the specific construction steps are as follows:

[0085] Step 1: Weld and fabricate the steel wire rope reel sling 8 according to the drawings. The type of welding rod selected should match the specifications of the base material (the welder should have a special work operation certificate issued by the state);

[0086] Step 2: Use a crane to lift the winch 7 to the position behind the loop tensioning device 2 (the rigger should have a special type of work operation certificate issued by the state);

[0087] Step 3: Select appropriate steel wire ropes and shackles to fix the winch 7;

[0088] Step 4: Use a 3-ton chain block to fix both sides of the loop car 1 to prevent the loop car 1 from moving during the installation of the steel wire rope, improving safety;

[0089] Step 5: Keep the first, second, and third driving rope wheels disconnected from the speed reducer coupling, making the first, second, and third driving rope wheels in an automatic state. This state can reduce the resistance of the large gear driving the small gear;

[0090] Step 6: After turning on the power of the winch 7, operate the winch 7 (the operator should have a special type of work operation certificate issued by the state) to thread the winch steel wire rope 71 along the preset trajectory of the loop steel wire rope 81 to the fixed end 3 of the loop steel wire rope;

[0091] Step 7: Use pliers to remove the binding wire at the head of the steel wire rope to prevent jamming;

[0092] Step 8: Connect the winch steel wire rope 71 to the loop steel wire rope 81. Before connection, confirm that the steel wire rope is of the specification size of this loop. There have been cases where it did not match the specification size of this loop, resulting in rework;

[0093] Step 9: Use the traveling crane and the sling 13 reel lifting tool to lift the loop wire rope reel. The force application point when pulling the loop wire rope is at the top to prevent the loop wire rope reel from rotating;

[0094] Step 10: Use a walkie-talkie to call and check and confirm whether multiple parts such as the loop car 1, the rope pulley, and the inside of the loop meet the starting conditions of the hoist;

[0095] Step 11: First, jog the hoist 7 to ensure that each position meets the pulling conditions, and then continuously use the hoist 7 to pull the loop wire rope head to the position of the loop wire rope tensioning device 2;

[0096] Step 12: Manually pull the end rope head at the other end of the loop wire rope to the loop wire rope fixed end 3, and hoist the wire rope reel 8 to the storage position;

[0097] Step 13: Use wire rope clips to connect the loop wire rope 81 to the loop wire rope fixed end 3. The installation method, spacing, and quantity of the wire rope clips shall meet the installation requirements of the drawings and specifications (GB5976-2006);

[0098] Step 14: Jog the hoist 7 to eliminate the sinking force of the loop wire rope 71;

[0099] Step 15: Use a 5-ton chain block (6 meters) to hold the loop wire rope 7 to ensure safety when cutting the loop wire rope 7;

[0100] Step 16; Cut the loop wire rope 7 according to the dimensions in the drawings;

[0101] Step 17: The hydraulic cylinder of the loop wire rope tensioning device 2 remains in the extended state, and the piston rod extended by the hydraulic cylinder shall be well protected;

[0102] Step 18: Connect the loop wire rope 81 to the loop wire rope tensioning device 2. The installation method, spacing, and quantity of the wire rope clips shall meet the installation requirements of the specifications (GB5976-2006);

[0103] Step 19: Remove the 5-ton chain block and the chain block for fixing the loop car 1;

[0104] Step 20: Conduct on-site cleaning of tools and sanitation.

[0105] Those skilled in the art should understand that those skilled in the art can achieve variations in combination with the prior art and the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention and will not be elaborated here.

[0106] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An installation method for a loop wire rope, which is used to install the loop wire rope (81) onto a loop car (1) according to a preset path. After the installation is completed, the first end of the loop wire rope (81) is arranged at a loop wire rope tensioning device (2), and the second end is arranged at a fixed end (3) of the loop wire rope; It is characterized in that The specific steps include: S1: Hoist a winch (7) to a position behind the loop wire rope tensioning device (2). A winch wire rope (71) is provided inside the winch (7), and the diameter of the winch wire rope (71) is smaller than that of the loop wire rope (81); Hoist the loop wire rope (81) in the form of a reel package to a position behind the fixed end (3) of the loop wire rope; S2: Operate the winch (7) to release the winch wire rope (71), and pass the winch wire rope (71) along the preset path of the loop wire rope (81) to the position of the fixed end (3) of the loop wire rope; S3: Connect the winch wire rope (71) to one end of the loop wire rope (81); S4: Pull the winch wire rope (71) through the winch (7). At the same time, the winch wire rope (71) drives the loop wire rope (81) to pass through the loop car (1) along the preset path; Finally, make the first end of the loop wire rope (81) be located at the position of the winch (7); S5: Connect the second end of the loop wire rope (81) to the fixed end (3) of the loop wire rope; S6: Determine the length of the loop wire rope (81) according to the drawing, and determine the pre-cutting position of the loop wire rope (81) according to the length; S7: Use a chain block (12) to pull and fix the loop wire rope (81) behind the pre-cutting position; S8: Cut off the loop wire rope (81) at the pre-cutting position to form a new first end of the loop wire rope (81); S9: Keep the extending end of the loop wire rope tensioning device (2) in the extending state, and fix the first end of the loop wire rope (81) to the loop wire rope tensioning device (2); S10: Remove the chain block (12) to release the fixation on the loop wire rope (81), and complete the installation of the loop wire rope (81).

2. The installation method for a loop wire rope according to claim 1, wherein A transition wire rope (11) is arranged between the loop wire rope (81) and the winch wire rope (71), and the diameter of the transition wire rope (11) is between that of the loop wire rope (81) and the winch wire rope (71); Both between the loop wire rope (81) and the transition wire rope (11), and between the transition wire rope (11) and the winch wire rope (71) are connected by means of overlapping and then welding.

3. The installation method for a loop wire rope according to claim 1, wherein In step S7, a fixed rope (10) with a rope loop is provided behind the pre-cut position of the loop wire rope (81). A chain block (12) is connected to the rope loop of the fixed rope (10), and the loop wire rope (81) is fixed by pulling it with the fixed rope (10). The fixed rope (10) is wound around the loop wire rope (81) and fixed by a wire rope clip (9). The wire rope clip (9) is sleeved on the loop wire rope (81) and the fixed rope (10), and the fixed rope (10) is clamped and fixed on the loop wire rope (81).

4. The installation method of a loop wire rope according to claim 3, characterized in that The fixed rope (10) is in close contact with the loop wire rope (81). One end of the fixed rope (10) winds around the loop wire rope (81) for one circle to form a rope loop, and then one end of the fixed rope (10) passes backward through the lower part of the fixed rope (10) to press the rope loop. The fixed rope (10) is wound around the loop wire rope (81) multiple times to form multiple rope loops, and is fixed by the wire rope clip (9) before and after the rope loops.

5. The installation method of a loop wire rope according to claim 1, characterized in that In step S1, the loop wire rope (81) in the form of a reel package is sleeved on the wire rope reel sling (8). Both ends of the wire rope reel sling (8) are lifted by lifting ropes (13) to make the pulling height level with the loop car rope pulley (4). The loop wire rope (81) in the form of a reel package can rotate on the wire rope reel sling (8) and release the loop wire rope (81). The loop wire rope (81) is pulled out from above the wire rope reel sling (8).

6. The installation method of a loop wire rope according to claim 5, characterized in that Before step S5, the loop wire rope (81) in the form of a reel package is removed, and the end rope head of the loop wire rope (81) is pulled to the position of the fixed end (3) of the loop wire rope.

7. The installation method of a loop wire rope according to claim 1, characterized in that Before installing the winch wire rope (71), the loop car (1) is fixed from both sides of the loop car (1) by a chain block. After the loop wire rope (81) is installed, the fixation on the loop car (1) is removed.

8. The installation method of a loop wire rope according to claim 1, characterized in that The winch wire rope (71) and the loop wire rope (81) also pass through the driving live pulley (5) of the loop car (1). Before step S4, the coupling of the live pulley (5) needs to be in the disconnected state before jogging the winch (7) to reduce the resistance suffered when the wire rope is pulled.

9. The installation method of a loop wire rope according to claim 1, characterized in that Before step S7, jog the winch (7) to eliminate the sinking stress of the loop wire rope (81).

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