Deep sea traction array cable tail end limiting device

Abstract

A deep sea traction array cable tail end limiting device disclosed by the present invention is characterized in that a guide mechanism is fixedly arranged on a supporting seat in a penetrating manner, the guide mechanism and an induction mechanism are coaxially arranged, the guide mechanism comprises a guide horn, a straight pipe, damping sections, a first stop ring and a second stop ring, the straight pipe is arranged at the center of the inner side of the guide horn, and multiple groups of damping sections are uniformly distributed on the straight pipe along the circumferential direction; a first stop ring is arranged on one side of the damping section, the first stop ring and the second stop ring are oppositely arranged, and an induction mechanism is arranged between the first stop ring and the second stop ring. When the array cable is released, the damping section protects the array cable to be in a buffer state all the time, and the damage risk of the array cable is reduced; through the arrangement of the induction mechanism, when the array cable is completely released, the magnetic induction section at the tail end of the array cable is just located at the induction position of the in-place sensor, and the reliability of a detection signal is improved; the diameter of the array cable is not limited, the length reserved at the tail end of the array cable can be adaptively modified according to working requirements, and the array cable can be more conveniently arranged at the tail end of a traction mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of marine array cable transmission devices, and in particular to a deep-sea traction array cable tail end limiting device. Background Art

[0002] Modern ocean exploration technology focuses on the application and development of marine resources. In order to more accurately detect the ocean environment at different depths and ranges, it is necessary to release a variety of cables to a distance and depth far enough from the mother ship to ensure that the detection signal is clear and accurate enough. Since the ocean detection transmission cable has zero buoyancy, the underwater environment of the ocean is harsh and full of uncertainties, the cable array retraction and release work and water turbulence will cause serious broadband random vibration and noise environment, and will also stimulate the structure and the numerous resonance peaks of the optical fiber electronic control instrument system inside the cable array, causing fatigue failure and dynamic instability of the cable array structure. Since there is no limiting mechanism at the tail end of the traction mechanism, signal abnormalities often occur when the cable array is in place, which reduces the detection accuracy of the cable array and even causes failures.

[0003] Therefore, designing a deep-sea towing array cable tail end limit device can prevent the cable sheath from being damaged and improve the accuracy of the array cable detection signal when an emergency situation such as an abnormal working failure occurs in the transmission cable, which becomes a direction for further improvement. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a deep-sea traction array cable tail end limiting device, including a support seat, a guide mechanism and a sensing mechanism. The support seat is fixedly provided with a guide mechanism, and the guide mechanism and the sensing mechanism are coaxially arranged. The guide mechanism includes a guide horn, a straight tube, a damping section, a stop ring 1 and a stop ring 2. A straight tube is provided at the inner center of the guide horn, and a plurality of groups of damping sections are evenly distributed along the circumferential direction on the straight tube. A stop ring 1 is provided on one side of the damping section, and the stop ring 1 and the stop ring 2 are arranged opposite to each other. A sensing mechanism is provided between the stop ring 1 and the stop ring 2.

[0005] Preferably, the induction mechanism includes a magnetic induction mounting block, a nylon block, a magnetic induction segment, an in-position sensor, a magnetic induction flange and a magnetic induction connecting block. A guide flange is fixedly provided at the front end of the guide horn, and the guide flange is fixedly connected to one end of the magnetic induction mounting block. A nylon block is provided on the inner side of the magnetic induction mounting block, and the nylon block and the inner side of the guide flange form an inwardly contracted arc-shaped step, and the arc-shaped step is abutted against the outer side of the second stop ring; a magnetic induction segment is sandwiched between the second stop ring and the first stop ring, and the magnetic induction segment is arranged at a relative interval to the in-position sensor, and the in-position sensor is respectively sealed and fixed at the upper and lower ends of the magnetic induction mounting block; the other end of the magnetic induction mounting block is fixedly connected to the magnetic induction flange, and the magnetic induction flange and the magnetic induction connecting block are integrally formed.

[0006] Preferably, the in-place sensor comprises a sensor body, a sealing mechanism, an axial sealing ring and a radial sealing ring. The outer periphery of the front end of the sensor body is provided with a mounting thread, the middle part of the sensor body is provided with a sealing mechanism, and the sealing mechanism is adapted to be installed with an axial sealing ring and a radial sealing ring.

[0007] Preferably, the sealing mechanism comprises an integrally formed sealing rear seat and a sealing front seat, the sealing rear seat being provided with a mounting hole, the mounting hole being provided with a fixing bolt, the fixing bolt fixing the sealing rear seat to the magnetic induction mounting block; an axial sealing groove being provided on the inner side of the sealing rear seat, the axial sealing groove being provided with an axial sealing ring; a radial sealing groove being provided at the connection between the sealing rear seat and the sealing front seat, the radial sealing groove being provided with a radial sealing ring, the diameter of the sealing front seat being less than or equal to the inner diameter of the axial sealing groove.

[0008] Preferably, the guide horn extends out from one end of the straight tube, and the guide horn also extends out from the other side of the damping section; and the two adjacent groups of damping sections are staggered with each other.

[0009] Preferably, one end of the stop ring is fixedly connected to the straight pipe.

[0010] Preferably, the stop ring 1 and the stop ring 2 are both made of titanium alloy TC4 material.

[0011] Preferably, the lower end of the magnetic induction connection block is fixedly connected to the traction mechanism via a fixing block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) The present invention has a guide mechanism fixedly installed on a support seat, the guide mechanism and the sensing mechanism are coaxially arranged, the guide mechanism includes a guide horn, a straight tube, a damping section, a stop ring 1 and a stop ring 2, a straight tube is arranged at the inner center of the guide horn, a plurality of damping sections are evenly distributed along the circumference of the straight tube, a stop ring 1 is arranged on one side of the damping section, the stop ring 1 and the stop ring 2 are arranged opposite to each other, and a sensing mechanism is arranged between the stop ring 1 and the stop ring 2. When the array cable is released, the damping section protects the array cable and keeps it in a buffer state at all times, reducing the risk of damage to the array cable. Through the setting of the sensing mechanism, when the array cable is released, the magnetic induction section at the tail end of the array cable is just in the sensing position of the in-place sensor, which improves the reliability of the detection signal. When the in-place sensor detects the magnetic induction section, it feeds back a signal to the background system to remind the staff that the release of the array cable has been in place, avoiding continued release of the array cable that may cause non-operating damage to the array cable, and timely verifying the rationality and reliability of the feedback of the in-place information of the underwater array cable equipment. The present invention does not limit the diameter of the array cable, and the length reserved at the end of the array cable can also be adaptively modified according to work requirements, so that it is more convenient to install it at the end of the traction mechanism.

[0014] (2) The present invention provides a mounting thread on the outer periphery of the front end of the sensor body, and a sealing mechanism is provided on the middle part of the sensor body, wherein the sealing mechanism includes an integrally formed sealing rear seat and a sealing front seat, a mounting hole is provided on the sealing rear seat, a fixing bolt is provided in the mounting hole, and the fixing bolt fixes the sealing rear seat to the magnetic induction mounting block; an axial sealing groove is provided on the inner side of the sealing rear seat, and an axial sealing ring is provided in the axial sealing groove; a radial sealing groove is provided at the connection between the sealing groove rear seat and the sealing groove front seat, and a radial sealing ring is provided in the radial sealing groove, and the diameter of the sealing groove front seat is less than or equal to the inner diameter of the axial sealing groove. The in-place sensor of the present invention takes both axial and radial approaches to improve the reliability and sealing of the in-place sensor during operation, and can better protect the sensor body from detecting the array cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0017] Figure 3 It is a cross-sectional view of the present invention.

[0018] Figure 4 For the present invention Figure 3 Enlarged view of point A.

[0019] Figure 5 It is a structural schematic diagram of the in-place sensor of the present invention.

[0020] Figure 6 For the present invention Figure 5 sectional view of .

[0021] Figure 7 It is a cross-sectional view of a conventional in-place sensor in the prior art. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figures 1 to 6 As shown, a deep-sea traction array cable tail end limit device includes a support seat 1, a guide mechanism 2, a sensing mechanism 3, a guide horn 4, a straight tube 5, a damping section 6, a stop ring 1 7, a guide flange 8, a magnetic induction mounting block 9, a nylon block 10, a magnetic induction section 11, a stop ring 2 12, an in-position sensor 13, a magnetic induction flange 14, a magnetic induction connecting block 15, a sensor body 16, a sealing mechanism 17, an axial sealing ring 18, a radial sealing ring 19, a mounting thread 20, a sealing front seat 21, a sealing rear seat 22, a fixing bolt 23, an axial sealing groove 24, a radial sealing groove 25, a fixing block 26, and an array cable 27.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figures 1 to 6 As shown, a guide mechanism 2 is fixedly provided on the support seat 1, and the guide mechanism 2 is coaxially arranged with the induction mechanism 3. The guide mechanism 2 includes a guide horn 4, a straight tube 5, a damping section 6, a stop ring 1 7 and a stop ring 2 12. A straight tube 5 is provided at the inner center of the guide horn 4, and multiple groups of damping sections 6 are evenly arranged along the circumference on the straight tube 5. A stop ring 1 7 is provided on one side of the damping section 6, and the stop ring 1 7 is arranged opposite to the stop ring 2 12. The induction mechanism 3 is provided between the stop ring 1 7 and the stop ring 2 12. The stop ring 2 12 can move along the guide horn 4 under normal conditions, and the damping section 6 is provided to reduce vibration and noise. Because when the underwater array cable is retracted and released in the marine environment, due to the cable retraction and release work and water turbulence, it will cause serious broadband random vibration and noise environment, and will also excite the numerous resonance peaks of the structure and the optical fiber electronic control instrument system inside the cable, causing fatigue failure and dynamic instability of the cable structure, reducing the detection accuracy of the cable and even causing failure. The damping section 6 can also protect the tail end of the array cable 27 to prevent accidental collision and other unexpected situations from causing damage to the array cable.

[0027] The induction mechanism 3 includes a magnetic induction mounting block 9, a nylon block 10, a magnetic induction segment 11, an in-position sensor 13, a magnetic induction flange 14 and a magnetic induction connecting block 15. A guide flange 8 is fixedly provided at the front end of the guide horn 4. The guide flange 8 is fixedly connected to one end of the magnetic induction mounting block 9. A nylon block 10 is provided on the inner side of the magnetic induction mounting block 9. The nylon block 10 and the inner side of the guide flange 8 form an inwardly contracted arc-shaped step, which can be abutted against the outer side of the stop ring 2 12; a magnetic induction segment 11 is sandwiched between the stop ring 2 12 and the stop ring 1 7. The magnetic induction segment 11 is arranged at the tail end of the array cable 27. The magnetic induction segment 11 and the in-position sensor 13 are arranged at a relative interval. The in-position sensor 13 is respectively sealed and fixed at the upper and lower ends of the magnetic induction mounting block 9; the other end of the magnetic induction mounting block 9 is fixedly connected to the magnetic induction flange 14, and the magnetic induction flange 14 and the magnetic induction connecting block 15 are integrally formed.

[0028] The present invention does not limit the diameter of the array cable 27, and the length left at the end of the array cable 27 can also be adaptively modified according to work requirements.

[0029] The in-place sensor 13 includes a sensor body 16, a sealing mechanism 17, an axial sealing ring 18 and a radial sealing ring 19. A mounting thread 20 is provided on the outer periphery of the front end of the sensor body 16. A sealing mechanism 17 is provided on the middle part of the sensor body 16. The axial sealing ring 18 and the radial sealing ring 19 are adapted to be installed on the sealing mechanism 17. Specifically, the sealing mechanism 17 includes an integrally formed sealing rear seat 22 and a sealing front seat 21. A mounting hole is provided on the sealing rear seat 22. A fixing bolt 23 is provided in the mounting hole. The fixing bolt 23 fixes the sealing rear seat 22 to the magnetic induction mounting block 9. An axial sealing groove 24 is provided on the inner side of the sealing rear seat 22. An axial sealing ring 18 is provided in the axial sealing groove 24. A radial sealing groove 25 is provided at the connection between the sealing rear seat 22 and the sealing front seat 21. A radial sealing ring 19 is provided in the radial sealing groove 25. The diameter of the sealing front seat 21 is less than or equal to the inner diameter of the axial sealing groove 24, and the in-position sensor 13 can be more firmly sealed with the magnetic induction mounting block 9 in both axial and radial directions, thereby improving the reliability and sealing of the in-position sensor 13 during operation, achieving better water pressure resistance, and better protecting the sensor body 16 from the detection of the array cable 27. Figure 7 As shown, the in-place sensor in the prior art is only designed with a sealing ring 28 in the axial direction, and the water pressure resistance effect is poor.

[0030] One end of the straight tube 5 extends out of the guide horn 4, and the other side of the damping section 6 also extends out of the guide horn 4; the two adjacent groups of damping sections 6 are staggered. One end of the stop ring 1 7 is fixedly connected to the straight tube 5. The stop ring 1 7 and the stop ring 2 12 are both made of titanium alloy TC4 material. Since the surface of the array cable 27 is made of PU material, in order to meet its reliability requirements, the stop ring 1 7 and the stop ring 2 12 made of titanium alloy TC4 material are more corrosion-resistant, high-strength and lighter in weight, while not affecting the overall electrical corrosion requirements.

[0031] The lower end of the magnetic induction connection block 15 is fixedly connected to the traction mechanism through a fixing block 26, so as to facilitate subsequent installation on the end of the traction mechanism.

[0032] The working principle of the present invention is as follows: when the array cable 27 is released, the damping section 6 protects the array cable 27 and keeps it in a buffer state at all times, thereby reducing the risk of damage to the array cable 27; through the setting of the sensing mechanism 3, when the array cable 27 is fully released, the stop ring 12 will abut against the inwardly contracted arc-shaped step formed by the nylon block 10 and the inner side of the guide flange 8, thereby limiting the release of the array cable 27. At this time, the magnetic induction section 11 at the tail end of the array cable 27 is just in the sensing position of the in-place sensor 13, thereby improving the reliability of the detection signal. When the in-place sensor 13 detects the magnetic induction section 11, it will feedback the signal to the background system to remind the staff that the release of the array cable 27 has been in place, thereby avoiding continued release of the array cable 27, which may cause the array cable 27 to be damaged by non-operation, and timely verifying the rationality and reliability of the feedback of the in-place information of the underwater array cable 27 equipment.

[0033] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of rights of the present invention. Therefore, modifications, equivalent changes, improvements, etc. made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A deep-sea traction array cable tail end limiter, characterized in that: The invention comprises a support seat (1), a guide mechanism (2) and a sensing mechanism (3); the support seat (1) is fixedly provided with the guide mechanism (2); the guide mechanism (2) and the sensing mechanism (3) are coaxially arranged; the guide mechanism (2) comprises a guide horn (4), a straight tube (5), a damping section (6), a first stop ring (7) and a second stop ring (12); a straight tube (5) is arranged at the inner center of the guide horn (4); a plurality of groups of damping sections (6) are evenly arranged on the straight tube (5) along the circumferential direction; a first stop ring (7) is arranged on one side of the damping section (6); the first stop ring (7) and the second stop ring (12) are arranged opposite to each other; and a sensing mechanism (3) is arranged between the first stop ring (7) and the second stop ring (12).

2. A deep-sea traction array cable tail end limiter according to claim 1, characterized in that: The induction mechanism (3) comprises a magnetic induction mounting block (9), a nylon block (10), a magnetic induction section (11), an in-position sensor (13), a magnetic induction flange (14) and a magnetic induction connection block (15); a guide flange (8) is fixedly provided at the front end of the guide horn (4); the guide flange (8) is fixedly connected to one end of the magnetic induction mounting block (9); a nylon block (10) is provided on the inner side of the magnetic induction mounting block (9); the nylon block (10) and the inner side of the guide flange (8) form an inwardly contracted arc-shaped step; The arc-shaped step can be arranged against the outer side of the second stop ring (12); a magnetic induction section (11) is sandwiched between the second stop ring (12) and the first stop ring (7); the magnetic induction section (11) and the in-position sensor (13) are arranged at a relative interval; the in-position sensor (13) is respectively sealed and fixedly arranged at the upper and lower ends of the magnetic induction mounting block (9); the other end of the magnetic induction mounting block (9) is fixedly connected to the magnetic induction flange (14); the magnetic induction flange (14) and the magnetic induction connecting block (15) are integrally formed.

3. A deep-sea traction array cable tail end limiter according to claim 2, characterized in that: The in-position sensor (13) comprises a sensor body (16), a sealing mechanism (17), an axial sealing ring (18) and a radial sealing ring (19); a mounting thread (20) is provided on the outer periphery of the front end of the sensor body (16); a sealing mechanism (17) is provided on the middle part of the sensor body (16); and an axial sealing ring (18) and a radial sealing ring (19) are adapted to be installed on the sealing mechanism (17).

4. A deep-sea traction array cable tail end limiter according to claim 3, characterized in that: The sealing mechanism (17) comprises an integrally formed sealing rear seat (22) and a sealing front seat (21); a mounting hole is provided on the sealing rear seat (22), a fixing bolt (23) is provided in the mounting hole, and the fixing bolt (23) fixes the sealing rear seat (22) to the magnetic induction mounting block (9); an axial sealing groove (24) is provided on the inner side of the sealing rear seat (22), and an axial sealing ring (18) is provided in the axial sealing groove (24); a radial sealing groove (25) is provided at the connection between the sealing rear seat (22) and the sealing front seat (21), and a radial sealing ring (19) is provided in the radial sealing groove (25); the diameter of the sealing front seat (21) is less than or equal to the inner diameter of the axial sealing groove (24).

5. A deep-sea traction array cable tail end limiting device according to claim 3 or 4, characterized in that: One end of the straight tube (5) extends out of the guide horn (4), and the other side of the damping section (6) also extends out of the guide horn (4); two adjacent groups of damping sections (6) are staggered.

6. A deep-sea traction array cable tail end limiter according to claim 5, characterized in that: One end of the stop ring (7) is fixedly connected to the straight pipe (5).

7. A deep-sea traction array cable tail end limiter according to claim 6, characterized in that: The stop ring 1 (7) and the stop ring 2 (12) are both made of titanium alloy TC4 material.

8. The deep-sea traction array cable tail end limiter according to claim 5, characterized in that: The lower end of the magnetic induction connection block (15) is fixedly connected to the traction mechanism via a fixing block (26).

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