Deep sea propelling device with linear telescopic full-rotation function and operation method

Abstract

A deep-sea propelling device with a linear telescopic full-rotation function and an operation method are disclosed, the deep-sea propelling device comprises a platform, the propelling device is installed in the platform through a fastener, the propelling device can realize extension, retraction and rotation work of a deep-sea propeller, after the propelling device is retracted in place, a light shell outside the propeller is closed, and the linetype of the whole platform is not affected; the extending and retracting functions of the propeller are achieved through a deep-sea linear telescopic oil cylinder with a displacement monitoring function, the rotation function of the propeller is achieved through a deep-sea swing oil cylinder with a built-in angle sensor, and the telescopic locking function and the rotation locking function of the propeller are achieved through the deep-sea linear telescopic oil cylinder with the displacement monitoring function. The propeller is prevented from moving again after stretching out, drawing back and rotating in place, and equipment faults are avoided. And meanwhile, the light shell outside the propeller of the deep-sea large-scale mobile platform and the propeller can realize the functions of synchronously stretching, retracting and rotating.

Description

Technical Field

[0001] The present invention relates to the technical field of recyclable and rotatable thrusters used in the deep sea, and in particular to a deep sea propulsion device with linear telescopic and full-rotation functions and an operating method thereof. Background Art

[0002] At present, the auxiliary or emergency propulsion devices generally used for large deep-sea mobile platforms are mostly arranged outside the light outer shell of the platform or set as slot propellers. When the large deep-sea mobile platform is sailing, the outboard propellers and slot holes will greatly increase the resistance to navigation. In order to achieve a certain speed, the power of the main propulsion motor will increase. In addition, large deep-sea mobile platforms are mostly equipped with fixed propellers to achieve the change of thrust direction and achieve the purpose of vector propulsion, resulting in too many propellers. The increase in navigation resistance and the excessive number of propellers will both reduce efficiency, increase economic costs, reduce economic benefits, and increase environmental pollution, which has many disadvantages. Summary of the invention

[0003] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a deep-sea propulsion device with linear telescopic and full-rotation functions and an operating method, which can not only achieve 360° steering of the thrust, but also retract the thruster into the light outer shell of the platform.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A deep-sea propulsion device with linear telescopic and full-rotation functions, comprising a platform, wherein a propulsion device is installed inside the platform through fasteners, and the propulsion device can realize the extension, recovery and rotation of the deep-sea propeller. When the propeller is retracted into place, the light outer shell outside the propeller is closed without affecting the linear shape of the entire platform;

[0006] The structure of the propulsion device is as follows: it includes a frame, a sliding cylinder body is installed inside the frame, a guide rod body is arranged outside the sliding cylinder body, a telescopic cylinder body with a deep-sea built-in displacement sensor is installed inside the sliding cylinder body, the output end of the telescopic cylinder body is fixed to the top of the frame, the bottom of the telescopic cylinder body is fixed to the lower fixed cylinder of the telescopic cylinder, a rotary locking cylinder and a swing cylinder body are installed on the lower fixed cylinder of the telescopic cylinder, the swing cylinder body is supported and installed by a swing cylinder fixing frame, a lower bracket plate is fixed to the bottom of the frame, the lower fixed cylinder of the telescopic cylinder, the swing cylinder fixing frame, the outer shell of the swing cylinder body, the sliding bearing on the swing cylinder, and the swing cylinder sliding bearing are fixed together by bolts;

[0007] The swing cylinder body and the rotating shaft of the swing oil cylinder body are connected by bolts, and the swing cylinder body and the thruster connecting flange and the deep-sea thruster are bolted together. The rotation of the rotating shaft of the swing oil cylinder body can drive the deep-sea thruster to rotate.

[0008] The sliding cylinder body, the swing cylinder sliding bearing and the bottom supporting plate are connected by bolts, and the swing cylinder body can rotate in the swing cylinder upper sliding bearing, the swing cylinder sliding bearing and the swing cylinder lower sliding bearing;

[0009] The telescopic locking oil cylinder is fixedly connected to the lower bracket plate by bolts, a through hole for the extension rod of the oil cylinder is opened in the sliding bearing of the sliding cylinder, and a through hole is opened at the upper and lower ends of the sliding cylinder body respectively, so as to ensure that after the sliding cylinder body moves up and down into position, the extension rod of the telescopic locking oil cylinder of the deep-sea built-in displacement sensor can be inserted into the upper and lower through holes of the sliding cylinder body, so as to ensure the mechanical limit of the sliding cylinder body and ensure that the thruster does not move up and down after being extended and retracted into position;

[0010] The bottom of the swing cylinder body is connected through fasteners, a sliding bearing under the swing cylinder and a bottom support plate. The bottom surface of the swing cylinder body is also equipped with a deep-sea propeller through a propeller connecting flange. The bottom of the deep-sea propeller is a light shell.

[0011] As a further improvement of the above technical solution:

[0012] The sliding cylinder body is a thin-walled cylinder, and a through hole is opened in the middle of the sliding cylinder body.

[0013] The top surface of the sliding cylinder body is provided with a flange and reinforcing ribs.

[0014] The cross section of the lower fixing tube of the telescopic oil cylinder is in a "J"-shaped structure.

[0015] The top of the guide rod body is fixed by a guide rod locking nut, and the bottom of the guide rod body is connected to the lower bracket plate by a guide rod sliding bearing.

[0016] The thruster connecting flange is in an I-shaped structure.

[0017] A method for operating a deep-sea propulsion device with linear telescopic and full-rotation functions, comprising the following operating procedures:

[0018] After the large deep-sea mobile platform is launched, it needs to use a deep-sea propulsion device with linear telescopic and full-rotation functions. At this time, the output rods of the slewing locking cylinder and the telescopic locking cylinder are both in the longest state, and the deep-sea thruster is in the telescopic and slewing position locked state. First, the output shaft of the telescopic locking cylinder is retracted to the shortest, and the deep-sea thruster is in the telescopic unlocked state. At this time, the telescopic cylinder body begins to extend, and the slewing locking cylinder, the lower fixed cylinder of the telescopic cylinder, the swing cylinder body, the swing cylinder fixing frame, the sliding bearing on the swing cylinder, the swing cylinder sliding bearing, the swing cylinder body, the sliding bearing under the swing cylinder, the bottom support plate, the thruster connecting flange, the deep-sea thruster, and the light casing extend at the same time. When the output shaft of the telescopic cylinder body of the deep-sea built-in displacement sensor is extended After it is extended to its longest length, the output shaft of the telescopic locking cylinder of the deep-sea built-in displacement sensor is extended to its longest length, and the output shaft of the telescopic locking cylinder of the deep-sea built-in displacement sensor is inserted into the upper through hole of the sliding cylinder body, the sliding cylinder body is mechanically limited, the telescopic state of the thruster is locked, and the light shell is also extended to the outermost side at the same time; when the thruster needs to rotate, first the output shaft of the rotary locking cylinder is retracted to the shortest length, the deep-sea thruster is in the rotary unlocking state, the output shaft of the swing cylinder body starts to rotate, driving the deep-sea thruster to rotate, and when the output shaft of the swing cylinder body rotates into place, the output shaft of the rotary locking cylinder is extended to its longest length, and the output shaft of the rotary locking cylinder is inserted into a preset opening in the swing cylinder fixing frame of the deep-sea built-in angle sensor, and the thruster is locked in rotation;

[0019] When the large deep-sea mobile platform does not need to be applied to the deep-sea propulsion device with linear telescopic and full-rotation function, the output rods of the slewing locking cylinder and the telescopic locking cylinder are both in the longest state, and the deep-sea thruster is in the telescopic and slewing position locking state. First, the output shaft of the slewing locking cylinder is retracted to the shortest state, and the deep-sea thruster is in the unlocked state of rotation. The output shaft of the swing cylinder body starts to rotate in the opposite direction. When the output shaft of the swing cylinder body rotates into place, the output shaft of the slewing locking cylinder is extended to the longest, and the output shaft of the slewing locking cylinder is inserted into the original opening preset in the swing cylinder fixing frame, and the thruster rotation is locked; then the output shaft of the telescopic locking cylinder is retracted to the shortest state, and the deep-sea thruster is in the unlocked state of rotation. In the telescopic unlocking state, the telescopic cylinder body begins to retract, and the rotary locking cylinder, the lower fixed cylinder of the telescopic cylinder, the swing cylinder body, the swing cylinder fixing frame, the sliding bearing on the swing cylinder, the swing cylinder sliding bearing, the swing cylinder body, the sliding bearing under the swing cylinder, the bottom support plate, the thruster connecting flange, the deep-sea thruster, and the light outer shell are pulled back at the same time. When the output shaft of the telescopic cylinder body is retracted to the shortest, the output shaft of the telescopic locking cylinder is extended to the longest, and the output shaft of the telescopic locking cylinder is inserted into the lower through hole of the sliding cylinder body. The sliding cylinder body is mechanically limited, the thruster is locked in the telescopic state, and the light outer shell is retracted, so as to realize the closure of the light outer shell of the deep-sea large mobile platform, and the hydrodynamics is not affected.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention has a compact and reasonable structure and is easy to operate. It realizes the extension and retraction functions of the thruster by using a deep-sea linear telescopic oil cylinder with a displacement monitoring function, realizes the rotation function of the thruster by using a deep-sea swing oil cylinder with a built-in angle sensor, and respectively realizes the telescopic locking and rotation locking functions of the thruster by using a deep-sea linear telescopic oil cylinder with a displacement monitoring function, so as to prevent the thruster from being displaced again after being extended and rotated into place, thereby causing equipment failure. At the same time, the light outer shell on the outside of the thruster of the deep-sea large mobile platform can realize the functions of synchronous extension and rotation with the thruster. When the thruster is extended, it will open with the light outer shell to perform power position control. When the thruster is retracted into place, the light outer shell on the outside of the thruster will be closed, which will not affect the linear shape of the entire platform. Therefore, the resistance of the deep-sea large mobile platform will not increase, and the purpose of reducing environmental pollution and increasing economic benefits can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a diagram of the recovery of the deep-sea propulsion device with linear telescopic and full-rotation functions on the platform of the present invention.

[0023] Figure 2 This is a diagram of the deep-sea propulsion device with linear telescopic and full-rotation functions of the present invention being extended into position on a platform.

[0024] Figure 3 for Figure 1 Axonometric view of a deep-sea propulsion device with linear, telescopic and fully rotating capabilities.

[0025] Figure 4 for Figure 1 Internal layout of a mid- to deep-sea propulsion device with linear telescopic and full-rotation capabilities (I).

[0026] Figure 5 for Figure 4 A partial view of the .

[0027] Figure 6 for Figure 1 Diagram of the internal layout of the propulsion device with linear telescopic and full-rotation functions for the mid-deep sea (II).

[0028] Figure 7 for Figure 6 A partial view of the .

[0029] Among them: a. propulsion device; b. platform;

[0030] 1. Frame; 2. Telescopic cylinder body; 3. Guide rod body; 4. Guide rod locking nut; 5. Sliding cylinder body; 6. Rotary locking cylinder; 7. Lower fixed cylinder of telescopic cylinder; 8. Swing cylinder body; 9. Lower bracket plate; 10. Guide rod sliding bearing; 11. Sliding cylinder sliding bearing; 12. Deep-sea thruster; 13. Light casing; 14. Swing cylinder fixing frame; 15. Sliding bearing on swing cylinder; 16. Swing cylinder sliding bearing; 17. Swing cylinder body; 18. Sliding bearing under swing cylinder; 19. Bottom support plate; 20. Thruster connecting flange; 21. Telescopic locking cylinder. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0032] like Figure 1-Figure 7 As shown, the deep-sea propulsion device with linear telescopic and full-rotation functions of this embodiment includes a platform (b), and a propulsion device (a) is installed inside the platform (b) through fasteners. The propulsion device (a) can realize the extension, recovery and rotation of the deep-sea propeller 12. When it is retracted into place, the light shell 13 outside the propeller is closed without affecting the linear shape of the entire platform (b);

[0033] The structure of the propulsion device (a) is as follows: it comprises a frame 1, a sliding cylinder body 5 is installed inside the frame 1, a guide rod body 3 is arranged outside the sliding cylinder body 5, a telescopic cylinder body 2 with a deep-sea built-in displacement sensor is installed inside the sliding cylinder body 5, the output end of the telescopic cylinder body 2 is fixed to the top of the frame 1, a telescopic cylinder lower fixing cylinder 7 is fixed to the bottom of the telescopic cylinder body 2, a rotary locking cylinder 6 and a swing cylinder body 8 are installed on the telescopic cylinder lower fixing cylinder 7, the swing cylinder body 8 is supported and installed by a swing cylinder fixing frame 14, a lower bracket plate 9 is fixed to the bottom of the frame 1, and the telescopic cylinder lower fixing cylinder 7, the swing cylinder fixing frame 14, the outer shell of the swing cylinder body 8, the swing cylinder upper sliding bearing 15, and the swing cylinder sliding bearing 16 are fixed together by bolts;

[0034] The swing cylinder body 17 and the rotating shaft of the swing oil cylinder body 8 are connected by bolts. At the same time, the swing cylinder body 17 and the propeller connecting flange 20 and the deep-sea propeller 12 are bolted together. The rotation of the rotating shaft of the swing oil cylinder body 8 can drive the deep-sea propeller 12 to rotate.

[0035] The sliding cylinder body 5, the swing cylinder sliding bearing 16 and the bottom support plate 19 are connected by bolts, and the swing cylinder body 17 can rotate in the swing cylinder upper sliding bearing 15, the swing cylinder sliding bearing 16 and the swing cylinder lower sliding bearing 18;

[0036] The telescopic locking oil cylinder 21 is fixedly connected to the lower bracket plate 9 by bolts, a through hole for the oil cylinder extension rod is opened in the sliding cylinder sliding bearing 11, and a through hole is opened at the upper and lower ends of the sliding cylinder body 5 respectively, so as to ensure that after the sliding cylinder body 5 moves up and down into position, the extension rod of the telescopic locking oil cylinder 21 of the deep-sea built-in displacement sensor can be inserted into the upper and lower through holes of the sliding cylinder body 5, so as to ensure that the sliding cylinder body 5 is mechanically limited, and the thruster does not move up and down after being telescoped into position;

[0037] The bottom of the swing cylinder body 17 is connected by fasteners, a swing cylinder lower sliding bearing 18 and a bottom support plate 19 . The bottom surface of the swing cylinder body 17 is also equipped with a deep-sea propeller 12 through a propeller connecting flange 20 . The bottom of the deep-sea propeller 12 is a light shell 13 .

[0038] The sliding cylinder body 5 is a thin-walled cylinder, and a through hole is opened in the middle of the sliding cylinder body 5 .

[0039] The top surface of the sliding cylinder body 5 is provided with a flange and reinforcing ribs.

[0040] The cross section of the lower fixed tube 7 of the telescopic oil cylinder is in a "J"-shaped structure.

[0041] The top of the guide rod body 3 is fixed by a guide rod locking nut 4 , and the bottom of the guide rod body 3 is connected to the lower bracket plate 9 through a guide rod sliding bearing 10 .

[0042] The thruster connecting flange 20 is in an I-shaped structure.

[0043] The specific structure and function of the deep-sea propulsion device with linear telescopic and full-rotation functions described in the present invention are as follows:

[0044] It mainly includes a propulsion device a, which is installed inside the platform b through bolt connection, and can realize the extension, recovery, rotation and other functions of the deep-sea thruster 12. When the thruster is retracted into place, the light outer shell 13 outside the thruster will be closed without affecting the line shape of the entire platform.

[0045] The propulsion device a consists of a frame 1, a telescopic cylinder body 2 of a deep-sea built-in displacement sensor, a guide rod body 3, a guide rod locking nut 4, a sliding cylinder body 5, a rotary locking cylinder 6 of a deep-sea built-in displacement sensor, a lower fixed cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor, a swing cylinder body 8 of a deep-sea built-in angle sensor, a lower bracket plate 9, a guide rod sliding bearing 10, a sliding cylinder sliding bearing 11, a deep-sea thruster 12, a light casing 13, a swing cylinder fixing frame 14 of a deep-sea built-in angle sensor, a swing cylinder upper sliding bearing 15, a swing cylinder sliding bearing 16, a swing cylinder body 17, a swing cylinder lower sliding bearing 18, a bottom support plate 19, a thruster connecting flange 20, and a telescopic locking cylinder 21 of a deep-sea built-in displacement sensor.

[0046] The top of the telescopic cylinder body 2 of the deep-sea built-in displacement sensor is connected to the frame 1 through a pin, the guide rod body 3 and the sliding cylinder body 5 are locked and connected through a guide rod locking nut 4, the lower part of the telescopic cylinder body 2 of the deep-sea built-in displacement sensor is connected to the lower fixed cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor through a pin, and the lower bracket plate 9 is connected to the frame 1 through bolts; the rotary locking cylinder 6 of the deep-sea built-in displacement sensor is connected to the lower fixed cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor through screws, the rotation angle of the swing cylinder body 8 of the deep-sea built-in angle sensor is related to the size of the specific rotation angle requirement of the propeller, after the rotation angle of the swing cylinder body 8 of the deep-sea built-in angle sensor is determined, the positions of the two openings in the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor are immediately determined, and the rotary locking cylinder 6 of the deep-sea built-in displacement sensor can be inserted into the two openings in the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor when it is extended, so as to realize the locking function of the propeller rotation and ensure that the propeller no longer swings back and forth after rotating into place.

[0047] The lower fixed cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor, the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor, the outer shell of the swing cylinder body 8 of the deep-sea built-in angle sensor, the sliding bearing 15 on the swing cylinder, and the swing cylinder sliding bearing 16 are fixed together by bolts; the swing cylinder body 17 and the rotating shaft of the swing cylinder body 8 of the deep-sea built-in angle sensor are connected by bolts, and the swing cylinder body 17 and the propeller connecting flange 20 and the deep-sea propeller 12 are bolted together, and the rotation of the rotating shaft of the swing cylinder body 8 of the deep-sea built-in angle sensor can drive the rotation of the deep-sea propeller 12; the sliding cylinder body 5, the swing cylinder sliding bearing 16 and the bottom support plate 19 are connected by bolts, and the swing cylinder body 17 can rotate in the swing cylinder upper sliding bearing 15, the swing cylinder sliding bearing 16 and the swing cylinder lower sliding bearing 18.

[0048] The telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is fixedly connected to the lower bracket plate 9 by bolts, the sliding cylinder sliding bearing 11 has a through hole for the cylinder extension rod, and the upper and lower ends of the sliding cylinder body 5 each have a through hole, to ensure that after the sliding cylinder body 5 moves up and down into position, the extension rod of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor can be inserted into the upper and lower through holes of the sliding cylinder body 5, to ensure the mechanical limitation of the sliding cylinder body 5, and to ensure that the thruster no longer moves up and down after being telescoped into position.

[0049] By connecting the above equipment, it can be ensured that when the telescopic cylinder body 2 of the deep-sea built-in displacement sensor is extended and retracted, it can drive the rotary locking cylinder 6 of the deep-sea built-in displacement sensor, the lower fixed cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor, the swing cylinder body 8 of the deep-sea built-in angle sensor, the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor, the upper sliding bearing 15 of the swing cylinder, the swing cylinder sliding bearing 16, the swing cylinder body 17, the lower sliding bearing 18 of the swing cylinder, the bottom support plate 19, the thruster connecting flange 20, The deep-sea thruster 12 and the light shell 13 move up and down at the same time, and the telescopic locking function of the deep-sea thruster 12 is realized by the extension of the output shaft of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor; when the rotating shaft of the swing cylinder body 8 of the deep-sea built-in angle sensor rotates, it can drive the swing cylinder body 17, the thruster connecting flange 20, the deep-sea thruster 12 and the light shell 13 to rotate, and the locking function of the deep-sea thruster 12 rotation is realized by the extension of the output shaft of the rotary locking cylinder 6 of the deep-sea built-in displacement sensor.

[0050] In actual working process:

[0051] When the large deep-sea mobile platform b needs to be used in the deep-sea propulsion device a with linear telescopic and full-rotation functions after being launched, the output rods of the rotary locking cylinder 6 of the deep-sea built-in displacement sensor and the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor are both in the longest state, and the deep-sea thruster 12 is in the telescopic and rotary position locking state. First, the output shaft of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is retracted to the shortest, and the deep-sea thruster 12 is in the telescopic unlocked state. At this time, the telescopic cylinder body 2 of the deep-sea built-in displacement sensor begins to extend, pushing the rotary locking cylinder 6 of the deep-sea built-in displacement sensor, the lower fixing cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor, the swing cylinder body 8 of the deep-sea built-in angle sensor, the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor, the sliding bearing 15 on the swing cylinder, the sliding bearing 16 of the swing cylinder, the swing cylinder body 17, the sliding bearing 18 under the swing cylinder, the bottom support plate 19, the thruster connecting flange 20, the deep-sea thruster 12, and the light shell 13 to extend at the same time. When the output shaft of the telescopic cylinder body 2 of the deep-sea built-in displacement sensor is extended to the longest, the output shaft of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is extended to the longest, and the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is extended to the longest. The output shaft of the locking cylinder 21 is inserted into the upper through hole of the sliding cylinder body 5, the sliding cylinder body 5 is mechanically limited, the thruster is locked in the telescopic state, and the light shell 13 is also extended to the outermost side at the same time; when the thruster needs to rotate, first the output shaft of the deep-sea built-in displacement sensor's rotation locking cylinder 6 is retracted to the shortest, the deep-sea thruster 12 is in the rotation unlocking state, the output shaft of the swing cylinder body 17 starts to rotate, driving the deep-sea thruster 12 to rotate, and when the output shaft of the swing cylinder body 17 rotates into place, the output shaft of the deep-sea built-in displacement sensor's rotation locking cylinder 6 is extended to the longest, and the output shaft of the deep-sea built-in displacement sensor's rotation locking cylinder 6 is inserted into a preset opening in the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor, and the thruster rotation is locked.

[0052] When the large deep-sea mobile platform b does not need to be applied to the deep-sea propulsion device a with linear telescopic and full-rotation functions, at this time, the output rods of the slewing locking cylinder 6 of the deep-sea built-in displacement sensor and the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor are both in the longest state, and the deep-sea thruster 12 is in the telescopic and rotation position locking state. First, the output shaft of the slewing locking cylinder 6 of the deep-sea built-in displacement sensor is retracted to the shortest, and the deep-sea thruster 12 is in the rotation unlocked state, and the output shaft of the swing cylinder body 17 starts to rotate in the opposite direction. When the output shaft of the swing cylinder body 17 rotates into place, the output shaft of the slewing locking cylinder 6 of the deep-sea built-in displacement sensor is extended to the longest, and the output shaft of the slewing locking cylinder 6 of the deep-sea built-in displacement sensor is inserted into the preset original opening in the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor, and the thruster rotation is locked. Then the output shaft of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is retracted to the shortest, the deep-sea thruster 12 is in the telescopic unlocking state, the telescopic cylinder body 2 of the deep-sea built-in displacement sensor begins to retract, and the rotary locking cylinder 6 of the deep-sea built-in displacement sensor, the lower fixing cylinder 7 of the telescopic cylinder of the deep-sea built-in displacement sensor, the swing cylinder body 8 of the deep-sea built-in angle sensor, the swing cylinder fixing frame 14 of the deep-sea built-in angle sensor, the upper sliding bearing 15 of the swing cylinder, the swing cylinder sliding bearing 16, the swing cylinder body 17, the lower sliding bearing 18 of the swing cylinder, The bottom support plate 19, the thruster connecting flange 20, the deep-sea thruster 12 and the light shell 13 are pulled back at the same time. When the output shaft of the telescopic cylinder body 2 of the deep-sea built-in displacement sensor is retracted to the shortest, the output shaft of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is extended to the longest. The output shaft of the telescopic locking cylinder 21 of the deep-sea built-in displacement sensor is inserted into the lower through hole of the sliding cylinder body 5. The sliding cylinder body 5 is mechanically limited, the thruster is locked in the telescopic state, and the light shell 13 is retracted, so as to realize the closure of the light shell 13 of the deep-sea large mobile platform b, and the hydrodynamics are not affected.

[0053] Through the above operation method, the extension, rotation, retraction and other actions of the deep-sea thruster 12 are realized.

[0054] The present invention adopts a deep-sea oil cylinder with a built-in displacement sensor and a deep-sea swing oil cylinder with a built-in angle sensor to achieve the functions of accurate telescopic and locking detection and rotation angle detection and positioning, and has a mechanical limit locking insurance to ensure the safety of the equipment.

[0055] The present invention can not only realize 360° steering of thrust and the function of vector propulsion, but also retract the thruster into the light shell 13. The light shell 13 outside the thruster will be closed without affecting the line shape of the entire platform. Therefore, the resistance of the large deep-sea mobile platform will not increase, thereby reducing environmental pollution and increasing economic benefits.

[0056] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A deep-sea propulsion device with linear telescopic and full-rotation functions, characterized in that: The platform (b) comprises a propulsion device (a) installed inside the platform (b) by means of fasteners. The propulsion device (a) can realize the extension, recovery and rotation of a deep-sea propeller (12). When the propeller is recovered into place, the light outer shell (13) outside the propeller is closed without affecting the linear shape of the entire platform (b); The structure of the propulsion device (a) is as follows: it comprises a frame (1), a sliding cylinder body (5) is installed inside the frame (1), a guide rod body (3) is arranged outside the sliding cylinder body (5), a telescopic cylinder body (2) with a deep-sea built-in displacement sensor is installed inside the sliding cylinder body (5), the output end of the telescopic cylinder body (2) is fixed to the top of the frame (1), a telescopic cylinder lower fixing cylinder (7) is fixed to the bottom of the telescopic cylinder body (2), a rotary locking cylinder (6) and a swing cylinder body (8) are installed on the telescopic cylinder lower fixing cylinder (7), the swing cylinder body (8) is supported and installed by a swing cylinder fixing frame (14), a lower bracket plate (9) is fixed to the bottom of the frame (1), and the telescopic cylinder lower fixing cylinder (7), the swing cylinder fixing frame (14), the outer shell of the swing cylinder body (8), the swing cylinder upper sliding bearing (15), and the swing cylinder sliding bearing (16) are fixed together by bolts; The swing cylinder body (17) and the rotating shaft of the swing cylinder body (8) are connected by bolts, and the swing cylinder body (17) and the propeller connecting flange (20) and the deep-sea propeller (12) are connected by bolts. The rotation of the rotating shaft of the swing cylinder body (8) can drive the deep-sea propeller (12) to rotate; the sliding cylinder body (5), the swing cylinder sliding bearing (16) and the bottom support plate (19) are connected by bolts, and the swing cylinder body (17) can rotate in the swing cylinder upper sliding bearing (15), the swing cylinder sliding bearing (16) and the swing cylinder lower sliding bearing (18); The telescopic locking oil cylinder (21) is fixedly connected to the lower bracket plate (9) by bolts, a through hole for the oil cylinder extension rod is formed in the sliding cylinder sliding bearing (11), and a through hole is formed in the upper and lower ends of the sliding cylinder body (5) respectively, so as to ensure that after the sliding cylinder body (5) moves up and down into position, the extension rod of the telescopic locking oil cylinder (21) of the deep-sea built-in displacement sensor can be inserted into the upper and lower through holes of the sliding cylinder body (5), so as to ensure that the sliding cylinder body (5) is mechanically limited and the thruster does not move up and down after being telescoped into position; The bottom of the swing cylinder body (17) is connected by fasteners, a swing cylinder lower sliding bearing (18) and a bottom support plate (19). The bottom surface of the swing cylinder body (17) is also installed with a deep-sea propeller (12) through a propeller connecting flange (20). The bottom of the deep-sea propeller (12) is a light shell (13).

2. A deep-sea propulsion device with linear telescopic and full-rotation functions as claimed in claim 1, characterized in that: The sliding cylinder body (5) is a thin-walled cylinder, and a through hole is opened in the middle of the sliding cylinder body (5).

3. A deep-sea propulsion device with linear telescopic and full-rotation functions as claimed in claim 1, characterized in that: The top surface of the sliding cylinder body (5) is provided with a flange and reinforcing ribs.

4. A deep-sea propulsion device with linear telescopic and full-rotation functions as claimed in claim 1, characterized in that: The cross section of the lower fixing tube (7) of the telescopic oil cylinder is in a "J"-shaped structure.

5. A deep-sea propulsion device with linear telescopic and full-rotation functions as claimed in claim 1, characterized in that: The top of the guide rod body (3) is fixed by a guide rod locking nut (4), and the bottom of the guide rod body (3) is connected to the lower bracket plate (9) by a guide rod sliding bearing (10).

6. A deep-sea propulsion device with linear telescopic and full-rotation functions as claimed in claim 1, characterized in that: The thruster connecting flange (20) is in an I-shaped structure.

7. A method for operating a deep-sea propulsion device with linear telescopic and full-rotation functions as claimed in claim 1, characterized in that: The following operation procedures are included: After the deep-sea large mobile platform (b) is launched, it is necessary to apply the deep-sea propulsion device (a) with linear telescopic and full-rotation functions. At this time, the output rods of the slewing locking cylinder (6) and the telescopic locking cylinder (21) are both in the longest state, and the deep-sea thruster (12) is in the telescopic and slewing position locking state. First, the output shaft of the telescopic locking cylinder (21) is retracted to the shortest, and the deep-sea thruster (12) is in the telescopic unlocking state. At this time, the telescopic cylinder body (2) begins to extend, and the slewing locking cylinder (6), the lower fixing cylinder of the telescopic cylinder (7), the swing cylinder body (8), the swing cylinder fixing frame (14), the upper sliding bearing of the swing cylinder (15), the swing cylinder sliding bearing (16), the swing cylinder body (17), the lower sliding bearing of the swing cylinder (18), the bottom support plate (19), the thruster connecting flange (20), the deep-sea thruster (12), and the light shell (13) are extended at the same time. When the deep-sea built-in displacement sensor After the output shaft of the telescopic cylinder body (2) is extended to the maximum, the output shaft of the telescopic locking cylinder (21) of the deep-sea built-in displacement sensor is extended to the maximum, and the output shaft of the telescopic locking cylinder (21) of the deep-sea built-in displacement sensor is inserted into the upper through hole of the sliding cylinder body (5), the sliding cylinder body (5) is mechanically limited, the propeller is locked in the telescopic state, and the light shell (13) is also extended to the outermost side at the same time; when the propeller needs to rotate, first the output shaft of the rotary locking cylinder (6) is retracted to the shortest, the deep-sea propeller (12) is in the rotation unlocking state, and the output shaft of the swing cylinder body (17) starts to rotate, driving the deep-sea propeller (12) to rotate, and when the output shaft of the swing cylinder body (17) rotates into place, the output shaft of the rotary locking cylinder (6) is extended to the maximum, and the output shaft of the rotary locking cylinder (6) is inserted into a preset opening in the swing cylinder fixing frame (14) of the deep-sea built-in angle sensor, and the propeller is locked in rotation; When the deep-sea large mobile platform (b) does not need to be applied to the deep-sea propulsion device (a) with linear telescopic and full-rotation function, the output rods of the slewing locking cylinder (6) and the telescopic locking cylinder (21) are both in the longest state, and the deep-sea propeller (12) is in the telescopic and slewing position locking state. First, the output shaft of the slewing locking cylinder (6) is retracted to the shortest state, and the deep-sea propeller (12) is in the unlocked state of rotation. The output shaft of the swing cylinder body (17) starts to rotate in the opposite direction. When the output shaft of the swing cylinder body (17) rotates into place, the output shaft of the slewing locking cylinder (6) is extended to the longest, and the output shaft of the slewing locking cylinder (6) is inserted into the original opening preset in the swing cylinder fixing frame (14), and the propeller rotation is locked; then the output shaft of the telescopic locking cylinder (21) is retracted to the shortest state, and the deep-sea propeller (12) is in the telescopic unlocked state. The telescopic cylinder body (17) is locked. The body (2) starts to retract, and the rotary locking cylinder (6), the lower fixed cylinder of the telescopic cylinder (7), the swing cylinder body (8), the swing cylinder fixing frame (14), the upper sliding bearing of the swing cylinder (15), the swing cylinder sliding bearing (16), the swing cylinder body (17), the lower sliding bearing of the swing cylinder (18), the bottom support plate (19), the thruster connecting flange (20), the deep-sea thruster (12), and the light shell (13) are pulled back at the same time. When the output shaft of the telescopic cylinder body (2) is retracted to the shortest, the output shaft of the telescopic locking cylinder (21) is extended to the longest, and the output shaft of the telescopic locking cylinder (21) is inserted into the lower through hole of the sliding cylinder body (5). The sliding cylinder body (5) is mechanically limited, the thruster is locked in the telescopic state, and the light shell (13) is retracted, so that the light shell (13) of the deep-sea large mobile platform (b) is closed, and the hydrodynamic force is not affected.

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