Auxiliary equipment for installing ductile iron bushings for undersea cable protection

Abstract

We provide auxiliary equipment for installing ductile iron bushings for undersea cable protection. The system includes a storage plate 1, a side shell 2, and a standing pillar 3, the standing pillar being disposed between the storage plate and the side shell, a rotary motor 18 attached to the upper end of the standing pillar, a first hydraulic lift lever 4 attached to the upper end of the rotary motor, a second hydraulic lift lever 5 attached horizontally to the outer side of the first hydraulic lift lever, a third hydraulic lift lever 6 attached vertically to the outer lower end side of the second hydraulic lift lever, a gripper 7 attached to the lower end of the third hydraulic lift lever, a conveyor 9 provided above the supply end of the side shell, and an inclined guide plate 10 attached to the discharge end of the conveyor. The gripper is used to grip the upper half of the spheroidal graphite cast iron bushing to the outer upper end of the submarine cable, making the installation of the spheroidal graphite cast iron bushing convenient and quick.

Description

Technical Field

[0001] The present invention relates to the technical field of mounting auxiliary equipment, and specifically to the mounting auxiliary equipment for spherical graphite cast iron bushings for submarine cable protection.

Background Art

[0002] The spherical graphite cast iron bushing for cable protection is a device for protecting submarine cables. It is manufactured from spherical graphite cast iron. The effective length of each stage of the bushing is usually 500 mm - 1000 mm. It is connected by a half-ball joint. The angle between the two-stage protection pipes to be connected is around 25°. It can rotate freely and can prevent torsion by having a certain bending flexibility for the submarine cable.

[0003] When installing the spherical graphite cast iron bushing for submarine cable protection, the submarine cable is unwound using a cable unwinding machine, and at the same time, the spherical graphite cast iron bushing is transported and installed on the upper and lower sides outside the submarine cable respectively. Since each stage of the spherical graphite cast iron bushing is heavy, it takes a considerable amount of labor for transportation and the efficiency is low. Therefore, a mounting auxiliary equipment for spherical graphite cast iron bushings for submarine cable protection is proposed.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of the defects of the prior art, an object of the present invention is to provide a mounting auxiliary equipment for spherical graphite cast iron bushings for submarine cable protection to solve the problems pointed out in the above background art.

Means for Solving the Problems

[0005] To achieve the above object, the present invention provides the following technical solutions. It is an auxiliary facility for installing a spherical graphite cast iron bushing for submarine cable protection, including a storage plate, a side shell, and a vertical column. The vertical column is provided between the storage plate and the side shell. A rotating motor is attached to the upper end of the vertical column, and a first hydraulic lifting lever is attached to the upper end of the rotating motor. A second hydraulic lifting lever is horizontally attached to the outer side of the first hydraulic lifting lever. A third hydraulic lifting lever is vertically attached to the outer lower end side of the second hydraulic lifting lever. A gripper is attached to the lower end of the third hydraulic lifting lever. A conveyor is provided at the upper part of the supply end of the side shell, and an inclined deflector is attached to the discharge end of the conveyor. A high bracket is provided at the upper end of the side shell located outside the conveyor. A second rotating roller is attached to the inner upper end of the high bracket. A low bracket is provided on the side of the inclined deflector close to the upper end of the side shell. A first rotating roller is attached to the inner upper end of the low bracket. An inner groove is provided inside the side shell. A hydraulic push rod is provided at one end of the inner groove close to the conveyor, and a push plate is attached to one end of the hydraulic push rod close to the inclined deflector outside the hydraulic push rod.

[0006] Preferably, the first rotating roller is rotatably connected to the low bracket, and the second roller is rotatably connected to the high bracket. The first rotating roller is used to push down the submarine cable, and the second rotating roller is used to lift the submarine cable.

[0007] Preferably, fourth hydraulic lifting levers are provided at the four corners of the lower end of the storage plate, and the fourth hydraulic lifting levers are connected to the storage plate. By installing the fourth hydraulic lifting levers, the storage plate can be lifted or lowered as required.

[0008] Preferably, the upper end side of the inclined deflector is connected to the conveyor, and the lower end side of the inclined deflector is connected to the side shell. The inclined deflector is used for guiding the flow of the lower half of the spherical graphite cast iron bushing.

[0009] Preferably, the high bracket is connected to the side shell, and the low bracket is connected to the side shell.

[0010] Preferably, a support leg is provided at the lower end of the conveyor, and the support leg is connected to the conveyor and is used to support the conveyor.

Advantages of the Invention

[0011] Compared with the prior art, the spherical graphite cast iron bushing mounting auxiliary equipment for submarine cable protection of the present invention has the following advantageous effects.

[0012] The present invention uses a gripper to grip the upper half of the spherical graphite cast iron bushing at the outer upper end of the submarine cable together with a hydraulic lifting lever, and uses a conveyor to push the lower half of the spherical graphite cast iron bushing to the lower end of the submarine cable together with a hydraulic push rod and a push plate, and then uses a fastener to fixedly connect the upper half and the lower half. Thereby, the installation of the spherical graphite cast iron bushing is convenient and rapid, the installation efficiency is high, and the problems pointed out in the background art can be solved.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0014] Hereinafter, the technical solutions of the embodiments of the present invention will be clearly and completely described in conjunction with the drawings of the embodiments of the present invention. Of course, the embodiments described here are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those skilled in the art without creative labor based on the embodiments of the present invention are within the scope of protection of the present invention.

[0015] As shown in FIGS. 1, 2 and 3, the technical solution provided by the present invention is a spherical graphite cast iron bushing mounting auxiliary facility for submarine cable protection, which includes a storage plate 1, a side shell 2 and a column 3. The column 3 is provided between the storage plate 1 and the side shell 2. A rotating motor 18 is mounted at the upper end of the column 3, and a first hydraulic lifting lever 4 is mounted at the upper end of the rotating motor 18. A second hydraulic lifting lever 5 is mounted horizontally on the outer side of the first hydraulic lifting lever 4. A third hydraulic lifting lever 6 is mounted vertically on the outer lower end side of the second hydraulic lifting lever 5. A gripper 7 is mounted at the lower end of the third hydraulic lifting lever 6. A conveyor 9 is provided at the upper part of the supply end of the side shell 2, and an inclined deflector 10 is mounted at the discharge end of the conveyor 9. A high bracket 16 is provided at the upper end of the side shell 2 located outside the conveyor 9, and a second rotating roller 17 is mounted at the upper inner end of the high bracket 16. A low bracket 14 is provided on the side of the inclined deflector 10 close to the upper end of the side shell 2, and a first rotating roller 15 is mounted at the upper inner end of the low bracket 14. An inner groove 11 is provided inside the side shell 2. A hydraulic push rod 12 is provided at one end of the inner groove 11 close to the conveyor 9, and a push plate 13 is mounted at one end of the hydraulic push rod 12 close to the inclined deflector 10 on the outside.

[0016] As shown in FIG. 1, the first rotating roller 15 is rotatably connected to the low bracket 14, and the second roller 17 is rotatably connected to the high bracket 16. The first rotating roller 15 is used to push down the submarine cable, and the second rotating roller 17 is used to lift the submarine cable.

[0017] As shown in FIG. 1, fourth hydraulic lifting levers 8 are provided at the four corners of the lower end of the storage plate 1, and the fourth hydraulic lifting levers 8 are connected to the storage plate 1. By installing the fourth hydraulic lifting levers 8, the storage plate 1 can be lifted or lowered as required.

[0018] As shown in FIGS. 1 and 2, the upper end side of the inclined deflector 10 is connected to the conveyor 9, the lower end side of the inclined deflector 10 is connected to the side shell 2, and the inclined deflector 10 is used for guiding the flow of the lower half of the spherical graphite cast iron bushing.

[0019] As shown in FIG. 1, the high bracket 16 is connected to the side shell 2, and the low bracket 14 is connected to the side shell 2.

[0020] As shown in FIGS. 1 and 2, support legs 19 are provided at the lower end of the conveyor 9, and the support legs 19 are connected to the conveyor 9 and are used to support the conveyor 9.

[0021] In this technical solution, the upper half of the spherical graphite cast iron bushing is placed on the upper end of the receiving plate 1, the lower half of the spherical graphite cast iron bushing is arranged at the upper end of the conveyor 9, the subsea cable passes through the upper end of the second rotating roller 17 and the lower end of the first rotating roller 15 and extends out from the inner groove 11, the conveyor 9 is controlled to convey the lower half of the spherical graphite cast iron bushing towards the inclined deflector 10, the lower half of the spherical graphite cast iron bushing slides along the inclined deflector 10 into the inner groove 11, then the hydraulic push rod 12 is moved to push the lower half of the spherical graphite cast iron bushing in the inner groove 11 together with the push plate 13 against the lower end of the subsea cable located outside the low bracket 14, at the same time, the first hydraulic lifting lever 4, the second hydraulic lifting lever 5 and the third hydraulic lifting lever 6 are respectively controlled to make the gripper 7 approach the upper half of the spherical graphite cast iron bushing at the upper end of the receiving plate 1, the upper half of the spherical graphite cast iron bushing is gripped by using the gripper 7, the first hydraulic lifting lever 4, the second hydraulic lifting lever 5, the third hydraulic lifting lever 6 and the rotating motor 18 are controlled to attach the upper half of the spherical graphite cast iron bushing to the upper end outside the subsea cable located in the lower half of the spherical graphite cast iron bushing, the upper and lower two parts of the spherical graphite cast iron bushing are fixed by using fasteners, then the subsea cable is moved to move the attached spherical graphite cast iron bushing, and the above operations are repeated to complete the installation of the spherical graphite cast iron bushing.

[0022] In this specification, it should be explained that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of such an actual relationship or order between these entities or operations. Also, the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, where a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such a process, method, article, or apparatus. Also, in the drawings of the present invention, the filling pattern is for distinguishing layers and has no limiting meaning.

[0023] As described above, the embodiments of the present invention have been shown and described. However, those skilled in the art can make various changes, modifications, exchanges, and variations to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is limited by the claims and their equivalents.

Explanation of Reference Numerals

[0024] 1: Storage plate, 2: Side shell, 3: Column, 4: First hydraulic lifting lever, 5: Second hydraulic lifting lever, 6: Third hydraulic lifting lever, 7: Gripper, 8: Fourth hydraulic lifting lever, 9: Conveyor, 10: Inclined deflector, 11: Inner groove, 12: Hydraulic push rod, 13: Push plate, 14: Low bracket, 15: First rotating roller, 16: High bracket, 17: Second rotating roller, 18: Rotating motor, 19: Support leg

Claims

1. A submarine cable protection spheroidal graphite cast iron bushing installation auxiliary equipment, The storage unit includes a storage plate (1), a side shell (2), and a pillar (3), The upright pillar (3) is provided between the storage plate (1) and the side shell (2), A rotary motor (18) is attached to the upper end of the upright (3), A first hydraulic lift lever (4) is attached to the upper end of the rotary motor (18); A second hydraulic lift lever (5) is attached laterally to the outer side of the first hydraulic lift lever (4), A third hydraulic lift lever (6) is attached vertically to the outer lower end side of the second hydraulic lift lever (5), A gripper (7) is attached to the lower end of the third hydraulic lift lever (6), A conveyor (9) is provided at the upper part of the supply end of the side shell (2), An inclined flow guide plate (10) is attached to the discharge end of the conveyor (9), A high bracket (16) is provided at the upper end of the side shell (2) located outside the conveyor (9), A second rotating roller (17) is attached to the inner upper end of the tall bracket (16); A low bracket (14) is provided on the upper end of the side shell (2) on the side close to the inclined flow guide plate (10), A first rotating roller (15) is attached to the inner upper end of the lower bracket (14); An inner groove (11) is provided inside the side shell (2), A hydraulic push rod (12) is provided at one end of the inner groove (11) close to the conveyor (9), The hydraulic push rod (12) has a push plate (13) attached to one end thereof approaching the external inclined guide plate (10).

2. The first rotating roller (15) is rotatably connected to a lower bracket (14), 2. The installation aid for a ductile iron bushing for protecting a submarine cable according to claim 1, wherein the second roller (17) is rotatably connected to a high bracket (16).

3. Fourth hydraulic lift levers (8) are provided at the four corners of the lower end of the storage plate (1); 2. The auxiliary installation device for a spheroidal graphite cast iron bushing for protecting a submarine cable according to claim 1, wherein the fourth hydraulic lift lever (8) is connected to the storage plate (1).

4. The upper end side of the inclined flow guide plate (10) is connected to a conveyor (9), 2. The auxiliary installation device for a spheroidal graphite cast iron bushing for protecting a submarine cable according to claim 1, wherein the lower end side of the inclined flow guide plate (10) is connected to a side shell (2).

5. The high bracket (16) is connected to the side shell (2), 2. The installation aid for a ductile iron bushing for protecting a submarine cable according to claim 1, wherein said lower bracket (14) is connected to a side shell (2).

6. The conveyor (9) is provided at its lower end with a support leg (19); 2. The installation aid for a ductile iron bushing for protecting a submarine cable according to claim 1, wherein the support legs (19) are connected to a conveyor (9).

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