Light permanent mooring rope and manufacturing equipment

Abstract

The invention provides a light permanent mooring cable and manufacturing equipment, and relates to the technical field of permanent mooring cables, the light permanent mooring cable comprises two groups of pressed steel jackets and a steel wire rope, the pressed steel jackets are internally provided with pressed grooves, and the two ends of the steel wire rope are fixed into the pressed grooves of the two groups of pressed steel jackets; a shackle is arranged at the outer end of the pressed steel sleeve; the outer side of the steel wire rope is coated with a PE protective sleeve, a sleeve groove is formed in the portion, at one end of the pressing groove, of the pressing steel sleeve, and the two ends of the PE protective sleeve are inserted into the sleeve grooves of the two sets of pressing steel sleeves correspondingly. The steel wire rope is composed of the pressed steel sleeve and the steel wire rope, the steel wire rope is wrapped by the PE protective sleeve, the end of the steel wire rope is pressed and fixed into the pressed groove of the pressed steel sleeve, and the steel wire rope is compact in overall structure, light in weight and convenient to install, use and operate; and seawater can be effectively prevented from entering the PE protective sleeve to corrode the steel wire rope.

Description

Technical Field

[0001] The invention relates to the technical field of permanent mooring ropes, and in particular to a light permanent mooring rope and manufacturing equipment. Background Art

[0002] Permanent mooring products are high-strength ropes specially designed for long-term fixation and positioning of marine engineering structures (such as floating production storage and offloading units, floating wind power platforms, etc.). They usually have large diameter, high strength, wear resistance, corrosion resistance, long life, fatigue resistance, and rotation resistance. They can adapt to the test of extreme marine environments (such as typhoons, huge waves, etc.), effectively control the extreme motion response of floating structures, ensure that they maintain stable positioning and performance within a specific design service life, and no intervention is required after the initial installation. This product is of great significance to ensuring the safe and stable operation of marine engineering structures; At present, permanent mooring rope products are all cold cast rigging, which are composed of insulating plates, anode zinc blocks, bend limiters, rope bodies, rope segments and casting materials. Sacrificial anodes are used to provide long-term protection for the rigging. Due to structural limitations, the products produced are large and bulky. Therefore, the market needs mooring products with compact structure and light weight for easy use. Therefore, the present invention proposes a lightweight permanent mooring rope and manufacturing equipment to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes a light permanent mooring rope and manufacturing equipment. The light permanent mooring rope is composed of a pressed steel sleeve and a steel wire rope. The steel wire rope is wrapped with a PE protective sleeve, and the end of the steel wire rope is pressed and fixed to the inside of the pressed groove of the pressed steel sleeve. The overall structure is compact, light in weight, and easy to install and operate.

[0004] To achieve the purpose of the present invention, the present invention is implemented by the following technical solutions: a light permanent mooring rope, comprising a pressed steel sleeve and a steel wire rope, wherein the pressed steel sleeve is provided with two groups, and the inside of the pressed steel sleeve is provided with a pressed groove, and the two ends of the steel wire rope are fixed into the inside of the pressed grooves of the two groups of the pressed steel sleeves, and the outer end of the pressed steel sleeve is provided with a hook ring; The outer side of the steel wire rope is covered with a PE protective sleeve, a sleeve groove is provided inside the pressed steel sleeve at one end of the pressed groove, the two ends of the PE protective sleeve are respectively inserted into the sleeve grooves of the two groups of pressed steel sleeves, and sealant is filled between the outer side of the PE protective sleeve and the sleeve groove.

[0005] A further improvement is that the diameter of the pressing groove is smaller than the diameter of the sleeve groove, and an inverted arc is provided between the pressing groove and the sleeve groove, and the steel wire rope is pressed and held on the inverted arc.

[0006] A further improvement is that the hook ring and the pressed steel sleeve are integrally formed, and both the hook ring and the pressed steel sleeve are made of duplex stainless steel.

[0007] A further improvement is that the steel wire rope is fixed by pressing and pressing grooves of a pressed steel sleeve, and the pressing ratio of the pressed steel sleeve is 1.15, and the steel wire rope is a duplex stainless steel stranded wire.

[0008] A manufacturing device for a light permanent mooring rope comprises a bottom plate and a top plate, guide rods are arranged at both ends between the bottom plate and the top plate, and a slide plate is movably arranged on the guide rod, a hydraulic cylinder is arranged at the middle position of the top of the top plate, and the output end of the hydraulic cylinder passes through the top plate and is provided with a pressure block; Both ends of the pressing block are rotatably provided with a first hinged arm, both ends of the bottom of the top plate are rotatably provided with a second hinged arm, and both ends of the top of the slide plate are rotatably provided with a third hinged arm. The lower ends of the two groups of the second hinged arms are respectively hinged to the upper ends of the two groups of the third hinged arms to form hinge points, and the outer ends of the two groups of the first hinged arms are respectively hinged to the hinge points at both ends, and a clamp compatible with the pressed steel sleeve is provided between the bottom plate and the slide plate.

[0009] A further improvement is that the clamp includes a pressing block and a pressing seat, the pressing block is arranged at the middle position of the bottom of the slide plate, the pressing seat is arranged at the middle position of the top of the base plate, and the bottom of the pressing block and the top of the pressing seat are both provided with pressing grooves adapted to the pressing steel sleeve.

[0010] A further improvement is that: both ends of the inside of the slide plate are provided with sliding sleeves, and the inner side of the sliding sleeve is provided with a smooth film, and the sliding sleeve is arranged on the outer side of the guide rod.

[0011] A further improvement is that: first hinged seats are provided at both ends below the top plate, and upper ends of two groups of the second hinged arms are rotatably connected to two groups of the first hinged seats respectively.

[0012] A further improvement is that: second hinged seats are provided at both ends of the top of the slide plate, and the lower ends of the two groups of the third hinged arms are rotatably connected to the two groups of the second hinged seats respectively.

[0013] A further improvement is that: both ends of the bottom of the base plate are provided with feet, and the feet are fixed to the installation table by bolts.

[0014] The beneficial effects of the present invention are: 1. The present invention is composed of a pressed steel sleeve and a steel wire rope. The steel wire rope is covered with a PE protective sleeve. The end of the steel wire rope is pressed and fixed to the inside of the pressed groove of the pressed steel sleeve. The overall structure is compact, light in weight, and easy to install and operate.

[0015] 2. The PE protective sleeve of the present invention is fixed into the sleeve groove of the pressed steel sleeve, and the outer side of the PE protective sleeve and the sleeve groove are filled with sealant, which can effectively prevent seawater from entering the PE protective sleeve to corrode the steel wire rope and improve durability.

[0016] 3. The present invention presses the interior of the steel sleeve, and an inverted arc is provided between the pressing groove and the sleeve groove. The steel wire rope is pressed and held on the inverted arc to avoid the edge from contacting the rope body, thereby reducing stress concentration and avoiding wear.

[0017] 4. The pressing ratio of the pressed steel sleeve of the present invention is 1.15, which can ensure that the rigging as a whole has a static load breaking force of not less than 90% of the breaking force of the wire rope and a breaking force of not less than 60% of the breaking force of the wire rope after 7500 fatigue tests. Therefore, the manufacturing equipment is used to place the pressed steel sleeve on the inner side of the clamp, and the pressing block is pushed by the hydraulic cylinder. The pressing block pushes the first articulated arm to rotate, and pushes the hinge points of the second articulated arm and the third articulated arm to rotate outward, so that the slide plate is pressed down and the clamp is driven to press. This structure is different from direct downward pressing. It uses the cooperation of multiple groups of articulated arms to further increase the pressing force at the rear end. After pressing, the supporting effect of the second articulated arm and the third articulated arm after tending to vertical is used to achieve a certain self-locking pressure holding function, so that the pressing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the light permanent mooring rope of the present invention; Figure 2 It is a side cross-sectional schematic diagram of a lightweight permanent mooring rope of the present invention; Figure 3 This is a schematic diagram of the installation of the pressed steel sleeve, steel wire rope, and PE protective sleeve of the present invention; Figure 4 It is a schematic diagram of the manufacturing equipment of the present invention.

[0019] Among them: 1. pressed steel sleeve; 2. steel wire rope; 3. hook ring; 4. PE protective sleeve; 5. sealant; 6. inverted arc; 7. bottom plate; 8. top plate; 9. guide rod; 10. slide plate; 11. hydraulic cylinder; 12. pressure block; 13. first articulated arm; 14. second articulated arm; 15. third articulated arm; 16. pressure block; 17. pressure seat; 18. sliding sleeve; 19. first articulated seat; 20. second articulated seat; 21. base. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0021] Embodiment 1 according to Figure 1 , 2As shown in FIG. 3 , this embodiment provides a light permanent mooring rope, comprising a pressed steel sleeve 1 and a steel wire rope 2. The pressed steel sleeve 1 is provided with two groups, and a pressed groove is provided inside the pressed steel sleeve 1. Both ends of the steel wire rope 2 are fixed into the pressed grooves of the two groups of pressed steel sleeves 1. A hook ring 3 is provided at the outer end of the pressed steel sleeve 1. The outer side of the steel wire rope 2 is coated with a PE protective sleeve 4, and a sleeve groove is provided inside the pressed steel sleeve 1 at one end of the pressed groove. The two ends of the PE protective sleeve 4 are respectively inserted into the sleeve grooves of the two groups of pressed steel sleeves 1, and the outer side of the PE protective sleeve 4 and the sleeve groove are filled with sealant 5. The pressed steel sleeve 1 and the steel wire rope 2 are composed of the steel wire rope 2, the steel wire rope 2 is wrapped with the PE protective sleeve 4, and the end of the steel wire rope 2 is pressed and fixed to the pressed groove of the pressed steel sleeve 1. The overall structure is compact, light in weight, and easy to install and use. The PE protective sleeve 4 is fixed into the sleeve groove of the pressed steel sleeve 1, and the outer side of the PE protective sleeve 4 and the sleeve groove are filled with sealant 5, which can effectively prevent seawater from entering the PE protective sleeve 4 to corrode the steel wire rope 2 and improve durability.

[0022] The diameter of the pressing groove is smaller than that of the sleeve groove, and a chamfered arc 6 is provided between the pressing groove and the sleeve groove, and the steel wire rope 2 is pressed and held on the chamfered arc 6. Inside the pressed steel sleeve 1, a chamfered arc 6 is provided between the pressing groove and the sleeve groove, and the steel wire rope 2 is pressed and held on the chamfered arc 6 to avoid contact between the edge and the rope body, reduce stress concentration, and avoid wear.

[0023] The hook ring 3 is integrally formed with the pressed steel sleeve 1, and both the hook ring 3 and the pressed steel sleeve 1 are made of duplex stainless steel. The steel wire rope 2 is fixed by pressing and pressing grooves of the pressed steel sleeve 1, and the pressing ratio of the pressed steel sleeve 1 is 1.15. The steel wire rope 2 is a duplex stainless steel strand.

[0024] Duplex stainless steel structure, PE outer layer. The compression ratio of the pressed steel sleeve 1 is 1.15, which can ensure that the rigging as a whole has a static load breaking force of not less than 90% of the breaking force of the steel wire rope 2 and a breaking force of not less than 60% of the breaking force of the steel wire rope 2 after 7500 fatigue tests. (The test process refers to GB / T4473-2015, the minimum breaking force of the steel wire rope 2 in the first example is 335klN, and a test piece is actually made to do a 301.5kN static load test. After holding the load for 30 seconds, the steel wire rope 2 has no broken wires, and the pressed steel sleeve 1 has no cracks or slippage. Another test piece is made to do a 201kN static load test after 7500 fatigue tests. The steel wire rope 2 has no broken wires, and the pressed steel sleeve 1 has no cracks or slippage).

[0025] The manufacturing process is as follows: pre-stretching of steel wire rope → wrapping PE → unloading → spare parts → applying sealant → pressing → inspection → packaging and storage. The special sealant 5 is added between the pressed steel sleeve 1 and the PE protective sleeve 4, which can effectively prevent seawater from entering the PE and corroding the steel strand. In addition, protective measures need to be taken during the manufacturing process to prevent the duplex stainless steel from being contaminated by iron ions and forming pitting in seawater in the later stage. An inverted arc 6 is provided inside the pressed steel sleeve 1 to effectively reduce the damage to the steel wire rope 2 caused by stress concentration. With the above measures, the light mooring rope can continue to work in seawater for more than 5 years without being damaged.

[0026] Embodiment 2 according to Figure 1 , 2 As shown in , 3 and 4, this embodiment provides a manufacturing device for a light permanent mooring rope, comprising a bottom plate 7 and a top plate 8, guide rods 9 are provided at both ends between the bottom plate 7 and the top plate 8, and a slide plate 10 is movably provided on the guide rod 9, a hydraulic cylinder 11 is provided at the middle position of the top of the top plate 8, and the output end of the hydraulic cylinder 11 passes through the top plate 8 and is provided with a pressure block 16; Both ends of the pressing block 16 are rotatably provided with a first hinged arm 13, both ends of the bottom of the top plate 8 are rotatably provided with a second hinged arm 14, and both ends of the top of the slide plate 10 are rotatably provided with a third hinged arm 15. The lower ends of the two groups of the second hinged arms 14 are respectively hinged to the upper ends of the two groups of the third hinged arms 15 to form hinge points, and the outer ends of the two groups of the first hinged arms 13 are respectively hinged to the hinge points at both ends, and a clamp compatible with the pressed steel sleeve 1 is provided between the bottom plate 7 and the slide plate 10. When in use, the pressing steel sleeve 1 is placed inside the clamp, and the pressing block 12 is pushed by the hydraulic cylinder 11. The pressing block 12 pushes the first articulated arm 13 to rotate, and pushes the hinge points of the second articulated arm 14 and the third articulated arm 15 to rotate outward, so that the slide plate 10 is pressed down, and the clamp is driven to press. This structure is different from direct downward pressing. It uses the cooperation of multiple groups of articulated arms to further increase the pressing force in the later process. After pressing, the supporting effect of the second articulated arm 14 and the third articulated arm 15 after tending to verticality is used to achieve a certain self-locking pressure holding function, so that the pressing effect is better.

[0027] The clamp includes a pressing block 16 and a pressing seat 17. The pressing block 16 is arranged at the middle position of the bottom of the slide plate 10, and the pressing seat 17 is arranged at the middle position of the top of the bottom plate 7. The bottom of the pressing block 16 and the top of the pressing seat 17 are both provided with a pressing groove adapted to the pressed steel sleeve 1. When in use, the pressing steel sleeve 1 is placed in the pressing groove of the pressing seat 17, and the pressing block 12 is pushed by the hydraulic cylinder 11. The pressing block 12 pushes the first articulated arm 13 to rotate, and pushes the hinge points of the second articulated arm 14 and the third articulated arm 15 to rotate outward, so that the slide plate 10 is pressed down, and the pressing block 16 is driven to press.

[0028] Both ends of the slide plate 10 are provided with a sliding sleeve 18, and a smooth film is provided on the inner side of the sliding sleeve 18, and the sliding sleeve 18 is slidably sleeved on the outer side of the guide rod 9. Through the action of the sliding sleeve 18, the slide plate 10 is convenient to move along the guide rod 9, and the smooth film is used to reduce the friction during movement.

[0029] Both ends of the bottom of the top plate 8 are provided with first hinge seats 19, and the upper ends of the two sets of the second hinge arms 14 are respectively rotatably connected to the two sets of the first hinge seats 19. Both ends of the top of the slide plate 10 are provided with second hinge seats 20, and the lower ends of the two sets of the third hinge arms 15 are respectively rotatably connected to the two sets of the second hinge seats 20. By utilizing the cooperation of multiple sets of hinge arms, the pressing force in the later process is further increased, and after pressing, the supporting effect of the second hinge arms 14 and the third hinge arms 15 tending to be vertical is utilized to achieve a certain self-locking and pressure-maintaining function, so that the pressing effect is better.

[0030] Both ends of the bottom of the bottom plate 7 are provided with feet 21, and the feet 21 are fixed on the installation table by bolts. When in use, the feet 21 are fixed on the installation table by bolts to improve the stability of the overall device, which is more reliable during pressing.

[0031] The light permanent mooring rope and manufacturing equipment are composed of a pressed steel sleeve 1 and a steel wire rope 2. The steel wire rope 2 is wrapped with a PE protective sleeve 4. The end of the steel wire rope 2 is pressed and fixed to the inside of the pressed groove of the pressed steel sleeve 1. The overall structure is compact, light in weight, and easy to install and use. The PE protective sleeve 4 is fixed to the inside of the sleeve groove of the pressed steel sleeve 1. The outer side of the PE protective sleeve 4 and the sleeve groove are filled with sealant 5, which can effectively prevent seawater from entering the PE protective sleeve 4 to corrode the steel wire rope 2 and improve durability. At the same time, a chamfered arc 6 is provided inside the pressed steel sleeve 1 between the pressed groove and the sleeve groove. The steel wire rope 2 is pressed and held on the chamfered arc 6 to avoid contact between the edge and the rope body, reduce stress concentration, and avoid wear. In addition, the pressing ratio of the pressed steel sleeve 1 is 1.15, which can ensure that the rigging as a whole has a static load breaking force of not less than 90% of the breaking force of the wire rope and a breaking force of not less than 60% of the breaking force of the wire rope after 7500 fatigue tests. Therefore, the manufacturing equipment is used to place the pressed steel sleeve 1 on the inside of the clamp, and the hydraulic cylinder 11 pushes the pressing block 12. The pressing block 12 pushes the first articulated arm 13 to rotate, and pushes the hinge points of the second articulated arm 14 and the third articulated arm 15 to rotate outward, so that the slide plate 10 is pressed down to drive the clamp for pressing. This structure is different from direct downward pressing. It uses the cooperation of multiple groups of articulated arms to further increase the pressing force in the later stage. After pressing, the supporting effect of the second articulated arm 14 and the third articulated arm 15 after tending to vertical is used to achieve a certain self-locking and pressure-maintaining function, so that the pressing effect is better.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A light permanent mooring rope, comprising a pressed steel sleeve (1) and a steel wire rope (2), characterized in that: The pressed steel sleeves (1) are provided with two groups, and the inside of the pressed steel sleeves (1) is provided with a pressed groove, the two ends of the steel wire rope (2) are fixed into the inside of the pressed grooves of the two groups of pressed steel sleeves (1), and the outer ends of the pressed steel sleeves (1) are provided with hook rings (3); The outer side of the steel wire rope (2) is covered with a PE protective sleeve (4), a sleeve groove is provided inside the pressed steel sleeve (1) at one end of the pressed groove, the two ends of the PE protective sleeve (4) are respectively inserted into the sleeve grooves of the two groups of pressed steel sleeves (1), and a sealant (5) is filled between the outer side of the PE protective sleeve (4) and the sleeve groove.

2. A light permanent mooring rope according to claim 1, characterized in that: The caliber of the pressing groove is smaller than the caliber of the sleeve groove, and a chamfered arc (6) is provided between the pressing groove and the sleeve groove, and the steel wire rope (2) is pressed and held on the chamfered arc (6).

3. A light permanent mooring rope according to claim 1, characterized in that: The hook ring (3) and the pressed steel sleeve (1) are integrally formed, and both the hook ring (3) and the pressed steel sleeve (1) are made of duplex stainless steel.

4. A light permanent mooring rope according to claim 1, characterized in that: The steel wire rope (2) is fixed by pressing and pressing grooves of the pressed steel sleeve (1), and the pressing ratio of the pressed steel sleeve (1) is 1.

15. The steel wire rope (2) is a duplex stainless steel stranded wire.

5. A manufacturing device for a light permanent mooring rope, applied to a light permanent mooring rope as claimed in any one of claims 1 to 4, characterized in that: It comprises a bottom plate (7) and a top plate (8), wherein guide rods (9) are provided at both ends between the bottom plate (7) and the top plate (8), and a slide plate (10) is movably provided on the guide rod (9), and a hydraulic cylinder (11) is provided at the middle position of the top of the top plate (8), and the output end of the hydraulic cylinder (11) passes through the top plate (8) and is provided with a pressure block (16); Both ends of the pressing block (16) are rotatably provided with a first hinged arm (13), both ends of the bottom of the top plate (8) are rotatably provided with a second hinged arm (14), and both ends of the top of the slide plate (10) are rotatably provided with a third hinged arm (15), the lower ends of the two groups of the second hinged arms (14) are respectively hinged to the upper ends of the two groups of the third hinged arms (15) to form hinge points, and the outer ends of the two groups of the first hinged arms (13) are respectively hinged to the hinge points at both ends, and a clamp compatible with the pressing steel sleeve (1) is provided between the bottom plate (7) and the slide plate (10).

6. A manufacturing equipment for a light permanent mooring rope according to claim 5, characterized in that: The clamp comprises a pressing block (16) and a pressing seat (17); the pressing block (16) is arranged at the middle position of the bottom of the slide plate (10); the pressing seat (17) is arranged at the middle position of the top of the bottom plate (7); the bottom of the pressing block (16) and the top of the pressing seat (17) are both provided with a pressing groove adapted to the pressing steel sleeve (1).

7. A manufacturing equipment for a light permanent mooring rope according to claim 5, characterized in that: Both ends of the slide plate (10) are provided with sliding sleeves (18), and a smooth film is provided on the inner side of the sliding sleeve (18). The sliding sleeve (18) is slidingly sleeved on the outer side of the guide rod (9).

8. A manufacturing equipment for a light permanent mooring rope according to claim 5, characterized in that: Both ends below the top plate (8) are provided with first hinged seats (19), and the upper ends of the two groups of the second hinged arms (14) are rotatably connected to the two groups of the first hinged seats (19) respectively.

9. A manufacturing equipment for a light permanent mooring rope according to claim 8, characterized in that: Both ends of the top of the slide plate (10) are provided with a second hinge seat (20), and the lower ends of the two groups of the third hinge arms (15) are rotatably connected to the two groups of the second hinge seats (20) respectively.

10. A manufacturing equipment for a light permanent mooring rope according to claim 5, characterized in that: Both ends of the bottom of the base plate (7) are provided with base feet (21), and the base feet (21) are fixed to the installation table surface by means of bolts.

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