Nylon cable pre-stretch structure

Abstract

The application discloses a nylon cable pre-tensioning structure, a motor rotates with a first rotating shaft, the first rotating shaft rotates with a rope winding wheel A to wind a steel wire rope, the steel wire rope pulls a pulley chuck, the pulley chuck pulls a cable sleeve, the cable sleeve pulls a nylon cable through a fourth rotating shaft to pre-tension the nylon cable, the pre-tensioning force of the nylon cable is shared by the plurality of steel wire ropes, the stable pre-tensioning of the nylon cable is ensured, and the problem that the height direction size of the adjusting rod is too high when the long-distance nylon cable is pre-tensioned is solved.

Description

Technical Field

[0001] This utility model relates to a nylon cable pre-stretching structure, belonging to the field of offshore wind power mooring cable technology. Background Technology

[0002] When floating wind turbines use nylon cables to form a mooring system, the nylon cables are subjected to dynamic loads such as wind, waves, and currents over a long period. If the nylon cables are not pre-stretched, they will gradually slip under these loads, causing increased elongation and ultimately disrupting the mooring tension balance. Therefore, nylon cables must be pre-stretched to their maximum elongation before installation.

[0003] Existing technology for pre-stretching ropes is described in Chinese Patent Publication No. CN218274105U. Although the adjusting rod can pre-stretch the nylon cable by rotating and moving downward within the threaded sleeve, it results in excessive height of the adjusting rod when pre-stretching long-distance nylon cables. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a nylon cable pre-stretching structure.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a nylon cable pre-stretching structure, comprising: It consists of two cable sleeves spaced apart, with a fourth rotating shaft threaded through each sleeve, and a nylon cable wound around the fourth rotating shaft.

[0007] Both of the aforementioned cable fittings are provided with a fourth pivot hole, which is used for the fourth pivot to pass through.

[0008] It also includes multiple pulley chucks that are spaced apart. The pulley chucks have a second shaft hole and a third shaft hole at both ends. A second rotating shaft is sleeved through the second shaft hole, and a third rotating shaft is sleeved through the third shaft hole. The third rotating shaft located in the middle of the pulley chuck is sleeved through the cable sleeve.

[0009] Between the pulley chucks away from the cable assembly, there are multiple rope wheels B. Multiple rope wheels B are independently sleeved on the second rotating shaft between the two pulley chucks. Each rope wheel B is fixedly connected with a steel wire rope, and there are multiple steel wire ropes to correspond one-to-one with the multiple rope wheels B.

[0010] The end of the wire rope away from the winch B is wound with a winch A, and there are multiple winches A to correspond one-to-one with multiple wire ropes.

[0011] Multiple sheaves A are sleeved through and connected to a first rotating shaft; the system also includes multiple support brackets spaced apart, each with its bottom fixed to a base, and each support bracket has a first shaft hole for the first rotating shaft to be sleeved through. There is a sheave A between two support brackets.

[0012] The beneficial effects of this utility model are as follows: the motor drives the first rotating shaft to rotate, the first rotating shaft drives the winch A to rotate to wind the wire rope, the wire rope pulls the pulley chuck, the pulley chuck pulls the cable sleeve, and the cable sleeve pulls the nylon cable for pre-tensioning through the fourth rotating shaft. The pre-tensioning force of the nylon cable is distributed through multiple wire ropes, ensuring that the nylon cable is pre-tensioned smoothly, and solving the problem that the height dimension of the adjusting rod is too high when pre-tensioning long-distance nylon cables. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 3-steel wire rope; 4-nylon cable; 11-base; 12-support bracket; 13-winding wheel A; 14-first shaft hole; 15-first rotating shaft; 21-pulley chuck; 23-cable fitting; 24-second shaft hole; 25-second rotating shaft; 26-third shaft hole; 27-third rotating shaft; 28-fourth shaft hole; 29-fourth rotating shaft. Detailed Implementation

[0014] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0015] like Figure 1 As shown.

[0016] This application discloses a nylon cable pre-stretching structure, comprising: The fourth rotating shaft 29 is used for winding and connecting the nylon cable 4. The two ends of the fourth rotating shaft 29 are fitted with cable sleeves 23. There are two cable sleeves 23 spaced apart. Each cable sleeve 23 is provided with a fourth rotating shaft hole 28 for the fourth rotating shaft 29 to be sleeved and passed through.

[0017] It also includes multiple pulley chucks 21 spaced apart. Each pulley chuck 21 has a second shaft hole 24 and a third shaft hole 26 at its two ends. A second rotating shaft 25 is sleeved through the second shaft hole 24, and a third rotating shaft 27 is sleeved through the third shaft hole 26. The third rotating shaft 27, located in the middle of the pulley chuck 21, is sleeved through the cable sleeve 23.

[0018] Between the pulley chucks 21 away from the cable sleeve 23, there are rope wheels B. Multiple rope wheels B are independently sleeved on the second rotating shaft 25 between the two pulley chucks 21. Each rope wheel B is fixedly connected with a steel wire rope 3. There are multiple steel wire ropes 3 to correspond one-to-one with the multiple rope wheels B.

[0019] The end of the wire rope 3 away from the winch B is wound with a winch A13, and there are multiple winches A13 to correspond one-to-one with multiple wire ropes 3.

[0020] Multiple sheaves A13 are sleeved through and connected to a first rotating shaft 15; it also includes a support bracket 12, which is a plurality of spaced-apart support brackets. The bottom of each support bracket 12 is fixed on a base 11. The base 11 is fixed to provide a force-bearing foundation. Each support bracket 12 is provided with a first shaft hole 14 for the first rotating shaft 15 to be sleeved through. There is a sheave A13 between two support brackets 12.

[0021] In use, the first rotating shaft 15 is connected to the motor rotating shaft. The motor drives the first rotating shaft 15 to rotate, and the first rotating shaft 15 drives the winch A13 to rotate to wind up the wire rope 3. The wire rope 3 pulls the pulley chuck 21, and the pulley chuck 21 pulls the cable sleeve 23. The cable sleeve 23 pulls the nylon cable 4 for pre-tensioning through the fourth rotating shaft 29. The pre-tensioning force of the nylon cable 4 is distributed through multiple wire ropes 3, ensuring that the nylon cable 4 is pre-tensioned smoothly. This solves the problem of excessive height of the adjusting rod when pre-tensioning long-distance nylon cables.

[0022] The fourth shaft hole 28, the third shaft hole 26, the second shaft hole 24, and the first shaft hole 14 are all splined through holes; the fourth shaft 29, the third shaft 27, the second shaft 25, and the first shaft 15 are all splined shafts; the splined through holes and the splined shafts can only be slidably connected and cannot be rotated relative to each other.

Claims

1. A nylon cable pre-stretching structure, characterized in that, include: There are two cable sleeves (23) that are spaced apart. The cable sleeves (23) are connected to a fourth pivot (29). The fourth pivot (29) has a nylon cable (4) wrapped around it.

2. The nylon cable pre-stretching structure as described in claim 1, characterized in that: Both of the cable fittings (23) are provided with a fourth pivot hole (28), through which the fourth pivot (29) is sleeved and passed.

3. The nylon cable pre-stretching structure as described in claim 2, characterized in that: It also includes multiple pulley chucks (21) spaced apart. The pulley chucks (21) are provided with a second shaft hole (24) and a third shaft hole (26) at both ends. A second rotating shaft (25) is sleeved through the second shaft hole (24), and a third rotating shaft (27) is sleeved through the third shaft hole (26). The third rotating shaft (27) located in the middle of the pulley chucks (21) is sleeved through the cable sleeve (23).

4. The nylon cable pre-stretching structure as described in claim 3, characterized in that: Between the pulley chucks (21) away from the cable assembly (23), there are rope wheels B. Multiple rope wheels B are independently sleeved on the second rotating shaft (25) between the two pulley chucks (21). Each rope wheel B is fixedly connected with a steel wire rope (3). There are multiple steel wire ropes (3) to correspond one-to-one with multiple rope wheels B.

5. The nylon cable pre-stretching structure as described in claim 4, characterized in that: The end of the wire rope (3) away from the sheave B is wound with a sheave A (13), and there are multiple sheaves A (13) to correspond one-to-one with multiple wire ropes (3).

6. The nylon cable pre-stretching structure as described in claim 5, characterized in that: Multiple sheaves A (13) are sleeved with a first rotating shaft (15); the system also includes a support bracket (12), which consists of multiple spaced-apart supports. The bottom of each support bracket (12) is fixed to a base (11). Each support bracket (12) has a first shaft hole (14) for the first rotating shaft (15) to be sleeved through. There is a sheave A (13) between two support brackets (12).

Images