Large-diameter hanging cable protection structure of vertical ship lift

Abstract

A large-diameter hanging cable protection structure of a vertical ship lift comprises a protection body, the two sides of the protection body are fixed to a cable drag chain, a mounting hole is formed in the center of the protection body, and a hanging cable penetrates through the mounting hole. According to the large-diameter hanging cable protection structure of the vertical ship lift, safety protection of the cable can be achieved, and cable abrasion is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vertical ship lifts, and in particular to a protective structure for large-diameter suspension cables of vertical ship lifts. Background Technology

[0002] As a rapid passage for ships to pass under dams in large-scale water conservancy projects, the reliability of ship lifts directly affects the efficiency and safety of waterway navigation. The ship lift's cabin and operating equipment are connected to the engine room power cabinet via large-diameter suspended cables. These suspended cables are installed in cable drag chains. Due to the frequent lifting and lowering of the ship lift, the suspended cables undergo periodic bending and wear. Existing cable drag chain clamps suffer from unstable fixation and severe wear under repeated bending of large-diameter cables. Traditional cable drag chain clamps use a rigid clamping design, which cannot effectively protect the cable surface. Since the suspended cables of vertical ship lifts are high-voltage cables, any wear and damage to the cable surface leading to leakage could cause a major accident. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a protective structure for large-diameter suspended cables of a vertical ship lift. The protective structure is installed in the existing cable drag chain to achieve safe protection of the cable and avoid cable wear.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A protective structure for a large-diameter suspended cable of a vertical ship lift includes a protective body, with both sides of the protective body fixed to cable drag chains, and an installation hole in the center of the protective body through which the suspended cable passes.

[0006] The diameter of the mounting hole is 2 mm to 4 mm larger than the diameter of the hanging cable.

[0007] The protective body has mounting slots on its left and right sides, and a positioning cylinder is located in the mounting slot. The axis of the positioning cylinder is parallel to the end face of the protective body.

[0008] The protective body is made of polyurethane.

[0009] The protective body has a vertical cross-section along the axis of the positioning cylinder on one side.

[0010] The protective body has protrusions machined on both the front and rear sides.

[0011] The mounting groove and boss surfaces are roughened.

[0012] The protective body has a vertically shaped round hole.

[0013] This utility model provides a protective structure for large-diameter suspension cables of a vertical ship lift, which has the following technical advantages:

[0014] 1) This device can be directly installed on existing cable drag chains. The protective structure is made of polyurethane, which has the characteristics of high elasticity and wear resistance, and has a good protective effect.

[0015] 2) The protective structure has bosses at the front and back, and mounting grooves and positioning cylinders on the left and right sides, which can achieve quick installation and precise positioning. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention (first perspective).

[0018] Figure 2 This is a structural schematic diagram of the present invention (second perspective).

[0019] Figure 3 This is a schematic diagram of the fixture in this utility model.

[0020] Figure 4 This is a schematic diagram showing the connection between the protective body and the cable drag chain beam in this utility model.

[0021] Figure 5 This is a schematic diagram showing the connection between the protective body and the cable drag chain in this utility model.

[0022] In the diagram: 1. Mounting hole; 2. Mounting groove; 3. Positioning cylinder; 4. Circular hole; 5. Boss; 6. Section; 7. Protective body; 8. Cable drag chain; 9. Hanging cable; 10. Cable drag chain beam; 11. Clamp. Detailed Implementation

[0023] like Figure 1-4 As shown, a protective structure for a large-diameter suspended cable of a vertical ship lift includes a protective body 7. The protective body 7 has a central mounting hole 1. The mounting hole 1 is designed to have a diameter 2-4 mm larger than the diameter of the suspended cable to compensate for machining errors in the protective structure components, ensuring that the diameter of the mounting hole 1 is always larger than the diameter of the suspended cable, while also accommodating diameter changes over a certain length after bending during the cable's back-and-forth movement. The suspended cable 9 does not move relative to the protective body 7; the suspended cable 9 experiences only slight swaying within the protective body 7.

[0024] The edges of mounting hole 1 are rounded to increase the contact area when the suspended cable contacts the edge of mounting hole 1, so that the suspended cable is subjected to uniform force.

[0025] Mounting grooves 2 are machined on both sides of the protective body 7, and positioning cylinders 3 are located in the mounting grooves 2. The axis of the positioning cylinder 3 is parallel to the end face of the protective body 7 and perpendicular to the axis of the mounting hole 1. The mounting grooves 2 and the positioning cylinder 3 cooperate with the clamps 11 on the cable drag chain, and the positioning cylinder 3 is used for positioning the protective structure.

[0026] The protective body 7 has protrusions 5 processed on the front and back respectively, and the protrusions 5 are used for limiting.

[0027] A vertical section 6 is provided at the positioning cylinder 3 on one side of the protective body 7. The length of the section 6 is consistent with the thickness of the protective body 7. The section 6 breaks the protective body 7 at this point, making the mounting hole 1 a non-closed circular hole. Pulling the protective body 7 to the left and right along the section 6 enlarges the opening at the section 6, thus ensuring that the suspended cable can be quickly installed into the mounting hole 1. After the suspended cable is installed, the protective body 7 can be integrated with the clamp 11 on the cable drag chain 8 through the mounting groove 2 and the positioning cylinder 3 to form a whole.

[0028] Multiple circular holes 4 of different diameters are machined between the end face of the boss 5 and the cable mounting hole 1. The circular holes 4 are used to reduce weight and decrease the overall rigidity of the protective structure.

[0029] The protective structure is made of polyurethane, which has the characteristics of high elasticity and wear resistance.

[0030] The surfaces of the mounting groove 2 and the boss 5 are roughened to increase friction. This increased friction is to prevent repeated bending of the cable drag chain due to the long-term lifting and lowering of the ship's compartment, which could cause displacement of the protective structure.

[0031] Working principle and process:

[0032] 1) The boss 5 on the protective body 7 contacts the inner side of the cable drag chain crossbeam 10 for positioning, while the mounting grooves 2 on both sides are mounted on the cable drag chain crossbeam 10 via clamps 11, and the positioning cylinder 3 is positioned through the round hole on the clamp 11. The connection relationships are as follows: Figure 4-5 As shown.

[0033] 2) During the lifting and lowering of the ship lift cabin, the cable drag chain rises and falls together with the cabin. The protective body 7 is fixed on the cable drag chain beam 10, while the suspended cable 9 will sway slightly within the mounting hole 1 of the protective body 7. The protective body is installed on the suspended cable 9 to prevent the suspended cable 9 from colliding or rubbing against the cable drag chain beam 10 and clamps 11 during long-term lifting and lowering of the cabin, which could lead to damage to the insulation layer of the suspended cable 9 and cause leakage accidents.

Claims

1. A protective structure for large-diameter suspended cables of a vertical ship lift, characterized in that: It includes a protective body (7), which is fixed on both sides of the cable drag chain. The protective body (7) has an installation hole (1) in the center, through which the hanging cable passes.

2. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 1, characterized in that: The diameter of the mounting hole (1) is 2 mm to 4 mm larger than the diameter of the hanging cable.

3. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 2, characterized in that: The protective body (7) has mounting grooves (2) on its left and right sides respectively. The positioning cylinder (3) is located in the mounting groove (2), and the axis of the positioning cylinder (3) is parallel to the end face of the protective body (7).

4. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 3, characterized in that: The protective body (7) is made of polyurethane.

5. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 4, characterized in that: The protective body (7) has a vertical section (6) on one side along the axis of the positioning cylinder (3).

6. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 5, characterized in that: The protective body (7) has protrusions (5) processed on the front and rear sides respectively.

7. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 6, characterized in that: The surfaces of the mounting groove (2) and the boss (5) are roughened.

8. The protective structure for large-diameter suspended cables of a vertical ship lift according to claim 7, characterized in that: The protective body (7) has a vertically opened round hole (4).

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