An undersea cable burying device

Abstract

The present invention relates to the technical field of offshore power operation and maintenance, and particularly relates to a submarine cable burying device, which includes a body, bolts, a crawler mechanism, a driving mechanism, an air shaft and an air shaft connecting pipe; a threaded hole is provided at the bottom of the body, and the bolts pass through the crawler mechanism and are threadedly connected to the threaded hole; the driving mechanism is arranged on the body, the air shaft is drivingly connected to the output shaft of the driving mechanism, the air shaft connecting pipe is drivingly connected to the rotating shaft of the driving wheel of the crawler mechanism, and the air shaft is expandably connected to the inner wall of the air shaft connecting pipe. The beneficial effects of the present invention are as follows: The skids and the crawler mechanism of the submarine cable burying device provided by the present invention can be used interchangeably, and both the skids and the crawler mechanism are detachably connected to the body through bolts. Through the detachable connection of the transmission system of the convenient crawler mechanism, the interchangeable use of the skids and the crawler mechanism is more practical.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine power operation and maintenance, and particularly to a submarine cable burying device. Background Art

[0002] With the rapid development of the submarine communication and offshore wind power industries in China, the sea and optical cable services have increased exponentially, and a large number of sea and optical cable burying devices and operation and maintenance services are required.

[0003] The existing submarine cable burying device generally includes a main body and skids fixed to the bottom of the main body. The power of the submarine cable burying device comes from the towing of a ship, which makes the skids slide on the seabed surface.

[0004] However, the existing submarine cable burying device has great limitations in terms of operating conditions. When working on some seabeds with complex terrains, the structure of the skids will lead to low passability.

[0005] Therefore, those skilled in the art have tried to set a driving mechanism on the main body, connect the driving mechanism to a crawler mechanism, and use the crawler mechanism to drive the main body when the working conditions are complex, so as to improve the passability and versatility of the submarine cable burying device. However, those skilled in the art have the following concerns in the process of trying to implement the above concept: If the main body carries both skids and a crawler mechanism at the same time, the structure of the submarine cable burying device will be too complex. If the skids and the crawler mechanism can be replaced with each other and are a detachable structure from the main body, when the crawler mechanism needs to be power-connected to the driving mechanism, because the disassembly and assembly of the power connection between the crawler mechanism and the driving mechanism are relatively troublesome, it will take time for the staff.

[0006] Specifically, the detachable connection structure between the crawler mechanism and the driving mechanism in the prior art is usually: the rotating shaft of the driving wheel of the crawler mechanism is connected to the output shaft of the driving mechanism through a flange plate, and the disassembly and assembly of the above structure are relatively troublesome. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: to provide a submarine cable burying device, in which its crawler mechanism and skids can be used interchangeably, and the power connection structure of the crawler mechanism is convenient for disassembly and assembly.

[0008] To solve the above technical problem, a technical solution adopted by the present invention is: a submarine cable burying device, including a main body, a crawler mechanism, skids and a driving mechanism;

[0009] The crawler mechanism and the skids are detachably connected to the main body;

[0010] The driving mechanism is arranged on the main body;

[0011] The output end of the driving mechanism is provided with an air shaft, the crawler mechanism includes a driving wheel, an air shaft connecting pipe is arranged on the driving wheel, and the air shaft is in transmission connection with the air shaft connecting pipe.

[0012] Further, the air shaft includes a shaft body, a key bar and an air pump;

[0013] A first cavity and a second cavity are arranged inside the shaft body, a sliding hole is arranged on the side wall of the first cavity, the key bar slides and is sealingly connected to the sliding hole, the air pump is arranged in the shaft body, and one gas inlet / outlet end of the air pump communicates with the first cavity, and the other gas inlet / outlet end communicates with the second cavity.

[0014] Further, both the crawler mechanism and the sliding shoe are connected to the body by bolts.

[0015] Further, the output shaft of the driving mechanism is connected to the air shaft through a telescopic rod;

[0016] The axes of the driving wheel, the air shaft, the air shaft connecting pipe and the telescopic rod coincide;

[0017] The air shaft includes a key bar, and the key bar abuts against the inner wall of the air shaft connecting pipe.

[0018] Further, the crawler mechanism further includes a crawler body, a driven wheel and a crawler adjuster;

[0019] The crawler adjuster is detachably connected to the body, and the output end of the crawler adjuster drives the driven wheel to abut downward against the crawler body.

[0020] Further, the crawler adjuster includes a fixing plate and a lever;

[0021] The middle of the lever is hinged on the fixing plate, one end of the lever is connected to the fixing plate through a damper, and the other end is rotationally connected to the driven wheel;

[0022] The fixing plate is detachably connected to the body.

[0023] Further, the crawler mechanism includes a crawler body, and a plurality of protrusions are arranged on the inner wall of the crawler body. The crawler body is wound around the circumferential surface of the driving wheel, and the crawler body is engaged with the driving wheel through the protrusions.

[0024] Further, the crawler mechanism includes a driven wheel, and the driven wheel abuts against the inner wall of the crawler body;

[0025] The protrusions are arranged in the middle of the inner surface of the crawler body, and a relief groove for the protrusions is arranged in the middle of the circumferential surface of the driven wheel.

[0026] Furthermore, the driving wheel is connected to the fixed plate through a bearing, and both the air shaft connecting pipe and the air shaft pass through the fixed plate and are connected to each other.

[0027] Furthermore, it also includes a connecting piece. The bolt passes through the connecting piece and is threadedly connected to the crawler mechanism, and the bolt passes through the connecting piece and is connected to the threaded hole.

[0028] The beneficial effects of the present invention are as follows: The skids and the crawler mechanism of the submarine cable burying device provided by the present invention can be used interchangeably, and both the skids and the crawler mechanism are detachably connected to the main body. When the main body is connected to the crawler mechanism, the submarine cable burying device is connected to the inner wall of the air shaft connecting pipe through the expansion of the air shaft, making the power connection of the crawler mechanism easy to disassemble and making the interchangeable use of the skids and the crawler mechanism more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the overall structural schematic diagram of the installation skid state of a submarine cable burying device according to a specific embodiment of the present invention;

[0030] Figure 2 is according to a specific embodiment of the present invention Figure 1 magnified schematic diagram of part A;

[0031] Figure 3 is the overall structural schematic diagram of the installation crawler mechanism state of a submarine cable burying device according to a specific embodiment of the present invention;

[0032] Figure 4 is the partial structural explosion diagram of the installation crawler mechanism state of a submarine cable burying device according to a specific embodiment of the present invention;

[0033] Figure 5 is according to a specific embodiment of the present invention Figure 4 magnified schematic diagram of part B;

[0034] Figure 6 is according to a specific embodiment of the present invention Figure 4 magnified schematic diagram of part C;

[0035] Figure 7 is the structural cross-sectional view of the air shaft of a submarine cable burying device according to a specific embodiment of the present invention;

[0036] Label description:

[0037] 1, main body; 2, bolt; 3, skid;

[0038] 4, crawler mechanism; 41, driving wheel; 42, crawler body; 43, driven wheel; 44, crawler adjuster; 441, fixed plate; 442, lever; 443, damper;

[0039] 5. Driving mechanism; 6. Air shaft; 61. Key strip; 62. First cavity; 63. Second cavity;

[0040] 7. Air shaft connecting pipe. Detailed implementation manner

[0041] To describe in detail the technical content, achieved purpose and effects of the present invention, the following is described in conjunction with the implementation manners and with reference to the drawings.

[0042] Please refer to Figures 1-5 , a submarine cable burying device, including a main body 1, a sliding shoe 3, a crawler mechanism 4 and a driving mechanism 5;

[0043] The crawler mechanism 4 and the sliding shoe 3 are replaceably connected to the main body 1;

[0044] The driving mechanism 5 is arranged on the main body 1;

[0045] The output end of the driving mechanism is provided with an air shaft 6. The crawler mechanism includes a driving wheel 41, and an air shaft connecting pipe 7 is arranged on the driving wheel. The air shaft is in transmission connection with the air shaft connecting pipe.

[0046] As described above, the beneficial effect of the present invention is that: the sliding shoe 3 and the crawler mechanism 4 of the submarine cable burying device provided by the present invention can be used interchangeably, and both the sliding shoe 3 and the crawler mechanism 4 are detachably connected to the main body 1. The submarine cable burying device makes the interchangeable use of the sliding shoe 3 and the crawler mechanism 4 more practical through the detachable connection of the transmission system of the convenient crawler mechanism 4.

[0047] Specifically, both the crawler mechanism 4 and the sliding shoe 3 are connected to the main body through bolts 2.

[0048] When the staff needs to install the crawler mechanism 4 on the main body 1, the staff first keeps the air shaft 6 of the driving mechanism 5 inserted into the air shaft connecting pipe 7 of the crawler mechanism 4. Then, because there are threaded holes on the main body 1, the staff can screw the bolts 2 to connect the main body 1 and the crawler mechanism 4. Finally, the air shaft 6 is inflated, the key strip of the air shaft 6 slides, and the air shaft 6 expands and abuts against and fixes the air shaft connecting pipe 7, so that the crawler mechanism 4 is in transmission connection with the driving mechanism 5 on the main body 1.

[0049] Please refer to Figure 7 , further, the air shaft 6 includes a shaft body 1, a key strip 61 and an air pump;

[0050] Inside the shaft body 1, there are a first cavity 62 and a second cavity 63. On the side wall of the first cavity 62, there is a sliding hole. The key bar 61 slides and is sealingly connected to the sliding hole. The air pump is arranged in the shaft body 1. One gas inlet / outlet end of the air pump communicates with the first cavity 62, and the other gas inlet / outlet end communicates with the second cavity 63.

[0051] Preferably, a controller is arranged on the body 1, and the air pump is communicatively connected to the controller.

[0052] As can be seen from the above description, the above arrangement provides a structure in which the air shaft 6 itself can make the key bar slide, without the need to connect an external structure to inflate the air shaft 6.

[0053] Specifically, the air pump pumps the gas in the second cavity into the first cavity, causing the key bar to move outward from the air shaft 6 in the sliding hole.

[0054] Further, a battery is arranged on the air shaft 6, and the battery is electrically connected to the air pump.

[0055] As can be seen from the above description, the battery can be a power battery, enabling the air pump to be disconnected from the power supply for a long time.

[0056] Further, the crawler mechanism 4 includes a crawler body 42. On the inner wall of the crawler body 42, there are protrusions. The crawler body 42 is wound around the circumferential surface of the driving wheel 41, and the crawler body 42 meshes with the driving wheel through the protrusions.

[0057] As can be seen from the above description, the above arrangement provides a connection structure between the crawler body 42 and the driving wheel 41. The crawler body 42 can be made of rubber material to improve the passability of the submarine cable burying device.

[0058] Please refer to Figures 5-6 , further, the crawler mechanism 4 further includes a crawler body 42, a driven wheel 43, and a crawler adjuster 44;

[0059] The crawler adjuster 44 is detachably connected to the body 1, and the output end of the crawler adjuster 44 drives the driven wheel 43 to abut downward against the crawler body 42.

[0060] As can be seen from the above description, the crawler adjuster 44 is used to tension the crawler body 42. When the submarine cable burying device needs to pass over a protrusion on the seabed, the crawler adjuster 44 can increase the buffer stroke of the upward movement of the driven wheel 43, enabling the crawler mechanism 4 to easily pass over the obstacle.

[0061] Further, the crawler adjuster 44 includes a fixing plate 441 and a lever 442;

[0062] The middle part of the lever 442 is hinged on the fixed plate 441. One end of the lever 442 is connected to the fixed plate 441 through a damper 443, and the other end is rotatably connected to the driven wheel 43.

[0063] The fixed plate 441 is detachably connected to the body 1.

[0064] As described above, the above setting provides a structure of the track adjuster 44. The track adjuster 44 buffers the upward movement during impact through a damper, making the track adjuster 44 simple and having a long service life.

[0065] Further, the track mechanism 4 includes a driven wheel 43, and the driven wheel 43 abuts against the inner wall of the track body 42.

[0066] The protrusion is provided in the middle of the inner surface of the track body 42, and a relief groove for the protrusion is provided in the middle of the circumferential surface of the driven wheel 43.

[0067] As described above, the above setting avoids the driven wheel from hindering the movement of the protrusion and balances the torque transmitted by the driven wheel to the track body.

[0068] Further, the driving wheel 41 is connected to the fixed plate 441 through a bearing, and both the air shaft connecting pipe 7 and the air shaft 6 pass through the fixed plate 441 and are connected to each other.

[0069] As described above, the above setting provides a connection structure of the driving wheel to the fixed plate, making the bolt mainly bear the gravity of the track mechanism, while the air shaft and the air shaft connecting pipe mainly transmit torque to the driving wheel.

[0070] Further, it further includes a connecting piece. The bolt 2 passes through the connecting piece and is threadedly connected to the track mechanism 4, and the bolt 2 passes through the connecting piece and is connected to the threaded hole.

[0071] As described above, the above setting enables the connecting piece to bear part of the stress of the bolt, improving the connection strength between the track mechanism and the body.

[0072] Further, the output shaft of the driving mechanism 5 is connected to the air shaft 6 through a telescopic rod; the axes of the driving wheel 41, the air shaft 6, the air shaft connecting pipe 7, and the telescopic rod are all coincident;

[0073] The air shaft 6 includes a key bar 61, and the key bar 61 abuts against the inner wall of the air shaft connecting pipe 7.

[0074] As described above, after using bolts to fix the track mechanism and the body, the telescopic rod extends, enabling the air shaft to extend into the air shaft connecting pipe, making the connection between the track mechanism and the driving mechanism more convenient.

[0075] The application background of the submarine cable burying device provided by the present invention is as follows: when the passing performance of the submarine cable burying device is required to be high.

[0076] Embodiment 1

[0077] Please refer to Figures 1-6 , a submarine cable burying device, comprising a main body 1, bolts 2, a crawler mechanism 4, a driving mechanism 5, an air expansion shaft 6 and an air expansion shaft connecting pipe 7;

[0078] Threaded holes are provided at the bottom of the main body 1, and the bolts 2 pass through the crawler mechanism 4 and are threadedly connected to the threaded holes;

[0079] The driving mechanism 5 is arranged on the main body 1, the air expansion shaft 6 is drivingly connected to the output shaft of the driving mechanism 5, the air expansion shaft connecting pipe 7 is drivingly connected to the rotating shaft of the driving wheel 41 of the crawler mechanism 4, and the air expansion shaft is expandingly connected to the inner wall of the air expansion shaft connecting pipe.

[0080] The air expansion shaft 6 includes a shaft body 1, a key strip and an air pump;

[0081] The crawler mechanism 4 includes a crawler body 42, protrusions are provided on the inner wall of the crawler body 42, the crawler body 42 is wound around the circumferential surface of the driving wheel 41, and the crawler body 42 meshes with the driving wheel through the protrusions.

[0082] The crawler mechanism 4 further includes a driven wheel 43 and a crawler adjuster 44;

[0083] The driven wheel 43 is connected to the inner wall of the crawler body 42, one end of the bolt 2 passes through the crawler adjuster 44 and is connected to the main body 1, and the other end of the crawler adjuster 44 drives the driven wheel 43 to abut downward against the crawler body 42.

[0084] The crawler adjuster 44 includes a fixing plate and a lever;

[0085] The bolt 2 passes through the fixing plate and is connected to the main body 1, the middle of the lever is hinged on the fixing plate, one end of the lever is connected to the fixing plate through a damper, and the other end is rotatably connected to the driven wheel 43.

[0086] The use and principle of the submarine cable burying device provided by the present invention:

[0087] The driving mechanism 5 can be a hydraulic pump and a hydraulic system associated with the hydraulic pump, and high-pressure oil drives the impeller and then drives the output shaft of the driving mechanism 5.

[0088] Under normal circumstances, the sliding shoes 3 are connected to the main body 1 instead of the crawler mechanism 4, and the towing of a ship is used to provide power. The ship is connected to the main body 1 through a rope to drive the submarine cable burying device to move, and the sliding shoes 3 can enable the main body 1 to slide on the seabed surface.

[0089] When the terrain of the seabed is complex and difficult to pass, the staff needs to use the crawler mechanism 4 to replace the sliding shoe 3. The staff removes the sliding shoe 3 from the body 1 by loosening the bolts 2.

[0090] The staff moves the track mechanism 4 so that the inflatable shaft 6 of the driving mechanism 5 on the main body 1 is inserted into the inflatable shaft connecting tube 7 of the track mechanism 4. The staff uses bolts 2 to connect the track mechanism 4 and the main body 1. Then, the staff controls the first cavity of the air pump box of the inflatable shaft 6 to inflate through the controller, so that the key bar on the side wall of the first cavity slides, and then the inflatable shaft 6 expands and clamps the inflatable shaft connecting tube 7, completing the transmission connection between the driving mechanism 5 and the track mechanism 4.

[0091] The submarine cable burying device facilitates assembly and disassembly of the detachable transmission connection between the driving mechanism 5 and the crawler mechanism 4, making the interchangeable use of the sliding shoe 3 and the crawler mechanism 4 of the submarine cable burying device practical.

[0092] Example 2

[0093] Please refer to Figures 1-7 A submarine cable burying device includes a body 1, a bolt 2, a crawler mechanism 4, a driving mechanism 5, an inflatable shaft and an inflatable shaft connecting pipe 7;

[0094] The bottom of the body is provided with a threaded hole, and the bolt 2 passes through the crawler mechanism 4 and is threadedly connected to the threaded hole;

[0095] The driving mechanism 5 is arranged on the main body, the pneumatic shaft is coaxially connected to the output shaft of the driving mechanism 5, the pneumatic shaft connecting tube 7 is transmission-connected to the rotating shaft of the driving wheel 41 of the crawler mechanism 4, and the pneumatic shaft is expanded and connected to the inner wall of the pneumatic shaft connecting tube.

[0096] Preferably, the axis of the pneumatic shaft connecting tube coincides with the axis of the driving wheel and is fixedly connected;

[0097] The axis of the inflatable shaft coincides with the axis of the output shaft of the driving mechanism and is fixedly connected.

[0098] The inflatable shaft comprises a shaft body, a key bar and an air pump;

[0099] A first cavity and a second cavity are provided inside the shaft body, a sliding hole is provided on the side wall of the first cavity, the key strip slides and seals and connects the sliding hole, the air pump is arranged in the shaft body, one gas inlet and outlet end of the air pump is connected to the first cavity, and the other gas inlet and outlet end is connected to the second cavity.

[0100] A battery is provided on the inflatable shaft, and the battery is electrically connected to the air pump.

[0101] The crawler mechanism 4 includes a crawler body 42. A protrusion is provided on the inner wall of the crawler body 42. The crawler body 42 is wound around the circumferential surface of a driving wheel 41. The crawler body 42 is engaged with the driving wheel 41 through the protrusion.

[0102] The output shaft of the driving mechanism 5 is connected to an air shaft through a telescopic rod.

[0103] The use and principle of the submarine cable burying device provided in this embodiment:

[0104] An air pump is arranged in the shaft body, so that the air pump can transfer gas between the first cavity and the second cavity, enabling the key bar of the air shaft to automatically expand without using an externally connected air pump, facilitating the connection between the crawler mechanism 4 and the driving mechanism 5, and having a simple structure.

[0105] If there is no telescopic rod, it is necessary to thread the bolt 2 passing through the crawler mechanism 4 into the threaded hole while the air shaft extends into the air shaft connecting pipe 7. This causes difficulties in the installation of the crawler mechanism 4. By setting the telescopic rod, the bolt 2 first connects the crawler mechanism 4 and the body 1, and then the telescopic rod extends while the air shaft extends into the air shaft connecting pipe 7, making the power connection of the crawler mechanism 4 more convenient.

[0106] The above are only embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An undersea cable burying device, characterized in that, It includes a main body, a crawler mechanism, sliding shoes and a driving mechanism; The crawler mechanism and the sliding shoes are replaceably connected to the main body; The driving mechanism is arranged on the main body; An air shaft is provided at the output end of the driving mechanism. The crawler mechanism includes a driving wheel, and an air shaft connecting pipe is provided on the driving wheel. The air shaft is drivingly connected to the air shaft connecting pipe; The air shaft includes a shaft body, a key strip and an air pump; A first cavity and a second cavity are provided inside the shaft body. A sliding hole is provided on the side wall of the first cavity. The key strip slides and is sealingly connected to the sliding hole. The air pump is arranged in the shaft body. One gas inlet / outlet end of the air pump communicates with the first cavity, and the other gas inlet / outlet end communicates with the second cavity; Both the crawler mechanism and the sliding shoes are connected to the main body by bolts; The output shaft of the driving mechanism is connected to the air shaft through a telescopic rod; The axes of the driving wheel, the air shaft, the air shaft connecting pipe and the telescopic rod coincide; The air shaft includes a key strip, and the key strip abuts against the inner wall of the air shaft connecting pipe; The crawler mechanism further includes a crawler body, a driven wheel and a crawler adjuster; The crawler adjuster is detachably connected to the main body, and the output end of the crawler adjuster drives the driven wheel to abut downward against the crawler body; The crawler adjuster includes a fixing plate and a lever; The middle of the lever is hinged on the fixing plate. One end of the lever is connected to the fixing plate through a damper, and the other end is rotatably connected to the driven wheel; The fixing plate is detachably connected to the main body; The driving wheel is connected to the fixing plate through a bearing, and the air shaft connecting pipe and the air shaft both pass through the fixing plate and are connected to each other.

2. The submarine cable burying device according to claim 1, characterized in that The crawler mechanism includes a crawler body. A plurality of protrusions are provided on the inner wall of the crawler body. The crawler body is wound around the circumferential surface of the driving wheel, and the crawler body meshes with the driving wheel through the protrusions.

3. The submarine cable burying device according to claim 2, characterized in that, The crawler mechanism includes a driven wheel, and the driven wheel abuts against the inner wall of the crawler body; The protrusions are provided in the middle of the inner surface of the crawler body, and a relief groove for the protrusions is provided in the middle of the circumferential surface of the driven wheel.

4. The submarine cable burying device according to claim 1, wherein It further includes a connecting piece. The bolt passes through the connecting piece and is threadedly connected to the crawler mechanism. The bolt passes through the connecting piece and is connected to a threaded hole.

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