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CN-122000731-A - Flexible connector for linear array and array forming method

CN122000731ACN 122000731 ACN122000731 ACN 122000731ACN-122000731-A

Abstract

The invention relates to a flexible connector for a linear array and an array forming method, comprising a flexible connector shell, wherein the two axial sides of the flexible connector shell are respectively provided with a rope threading hole and a rope threading hole; the flexible connection strength rope penetrates through the rope penetrating holes of the bearing pieces to realize flexible connection of the two side parts. According to the invention, the bending radius of the array is shortened through the design of the flexible connector, the extrusion and the pulling up caused by bending at the contact position of the rigid structure and the flexible structure are relieved, the stress concentration is dispersed, the local fatigue is reduced, and the acoustic performance of the array is maintained while the water tightness of the array is protected.

Inventors

  • SHI HAORAN
  • HAO YUNBO
  • OUYANG ZHE
  • LUO LONG
  • XU YU

Assignees

  • 中国船舶集团有限公司第七一五研究所

Dates

Publication Date
20260508
Application Date
20260202

Claims (10)

  1. 1. A flexible connector for a linear array adapted for use in an underwater towed linear or vertical array, comprising: A flexible connector shell (4) with a threading hole and threading holes on two axial sides; the bearing piece (13) is fixedly connected with the flexible connector shell (4); a flexible connection strength rope (14) passes through the rope threading hole of the bearing piece (13) to realize flexible connection of the two side parts; A glass-frit-sealed body (7) which is provided inside the flexible connector housing (4) and is provided with a wiring conductor (10); the flexible connection polyurethane sheath (12) is coated outside the bearing piece (13) and the flexible connection strong rope (14); The oil filling screw (5) is arranged on the flexible connector shell (4) and is used for injecting oily liquid; and the matching ring (15) is arranged outside the flexible connector shell (4) and has the outer diameter consistent with the outer diameter of the linear array.
  2. 2. Flexible connector for linear arrays according to claim 1, characterized in that the top of the oil filled screw (5) is circular arc shaped, tangential to the inner circle of the mating ring (15) for preventing loosening caused by vibration.
  3. 3. Flexible connector for linear arrays according to claim 1, characterized in that the flexible connector housing (4) is provided with a corrugated structure on the outside for a press fit with the flexible connection polyurethane sheath (12).
  4. 4. The flexible connector for linear arrays according to claim 1, wherein the force bearing member (13) is provided with laterally symmetrical half-moon shaped threading holes for threading wires.
  5. 5. The flexible connector for a linear array according to claim 1, wherein the flexible connection polyurethane sheath (12) is filled with oily liquid to realize full sea depth pressure compensation.
  6. 6. Flexible connector for linear arrays according to claim 1, characterized in that the force bearing member (13) is fixedly connected with the flexible connector housing (4) by means of a circumferential screw.
  7. 7. A method of forming an array of flexible connectors according to any one of claims 1 to 6, comprising the steps of: welding a wire of a side linear array to the wiring conductor (10) and penetrating out from a threading hole of the bearing piece (13); Fixedly connecting the bearing piece (13) with the flexible connector shell (4); Penetrating the flexible connection polyurethane sheath (12) and the compression ring (9) into the flexible connection strong rope (14); welding the wires of the other side linear array to the corresponding wiring conductors (10); Fixing the other side bearing piece (13); moving the flexible connection polyurethane sheath (12) to the middle position and compacting by a compacting ring (9); injecting oily liquid through the oil-filled screw (5); a fitting ring (15) is fitted.
  8. 8. The method for forming the array according to claim 7, wherein the inner diameter of the flexible connection polyurethane sheath (12) is not smaller than the maximum outer diameter of the bearing piece (13), and the outer diameter of the compressed compression ring (9) is consistent with the outer diameter of the matching ring (15).
  9. 9. The method of claim 7, wherein the total length of the flexible connection strength rope (14) assembled with the load bearing member (13) is less than the length of the flexible connection polyurethane sheath (12).
  10. 10. An array method according to claim 7, characterized in that the mounting space of the mating ring (15) allows the flexible connection polyurethane sheath (12) to move axially during assembly.

Description

Flexible connector for linear array and array forming method Technical Field The invention belongs to the technical field of linear array connectors, and particularly relates to a flexible watertight connector for a linear array and an array forming method. Background The underwater horizontal towing or vertical line array is applied to ocean exploration, submersible equipment, submarine cables, oil and gas exploitation, military communication and other fields, and the deployment, recovery and other processes of the underwater horizontal towing or vertical line array often face some challenges of severe environments, such as narrow deployment space, complex sea conditions and the like in a carrying platform of UUV (unmanned underwater vehicle) and the like, so that the requirements of rapid deployment and compact storage are met. In addition, the array itself is required to have water tightness, hydrostatic pressure resistance, mechanical shock resistance, seawater corrosion resistance, plastic bending resistance, and the like. The array connector also has to meet the above requirements for arrays as a demarcation device between the array or the array and the stem. Therefore, the array connector has the characteristics of water tightness, small rigidity volume, small bending radius, difficult plastic deformation, physical resistance, chemical resistance and the like on the premise of ensuring signal transmission or energy exchange at two ends of the array connector. The traditional linear array adopts a rigid connector to realize the connection between the array sections. The rigid connector has the following problems that the bending radius is large, the compact storage and deployment requirements are difficult to meet, plastic deformation is easy to occur at the junction of the connector and the flexible sheath in the winch retraction process, the acoustic performance of an array is affected, the impact resistance of the rigid structure is poor, and local fatigue damage is easy to occur under dynamic loads such as turbulence and pulsating pressure. In the prior art, although modular or segmented designs have been employed to improve the bending performance of connectors, flexible watertight connectors have been proposed, such as those disclosed in patent publication CN 106291840B. However, the connector still has the problems of complex structure, inconvenient assembly and easy lead wire twisting, and meanwhile, the conventional plug-in connector is easy to cause fault risk due to the plug-in structure. Therefore, there is a need for a connector solution that is compact, flexible, easy to assemble and adaptable to full sea depth environments. Disclosure of Invention The invention aims to solve the technical problems of large bending radius, easy plastic deformation and poor impact resistance of the traditional rigid connector and to avoid the fault risk caused by plugging of a pluggable connector. The technical solution of the invention is to provide a flexible connector for a linear array, which is suitable for underwater towing of a linear array or a vertical array, and comprises: A housing of the flexible connector, the two sides of the axial end face are respectively provided with a threading hole and a threading hole; The bearing piece is fixedly connected with the flexible connector shell through a screw; the flexible connection strength rope penetrates through the rope penetrating hole of the bearing piece to realize flexible connection of the two side parts; The glass sintering sealing body is arranged inside the flexible connector shell and is provided with a wiring conductor; the flexible connection polyurethane sheath is coated outside the bearing piece and the flexible connection strong rope; the oil filling screw is arranged on the flexible connector shell and is used for filling oily liquid; and the shape matching ring is arranged outside the flexible connector shell, and the outer diameter of the shape matching ring is consistent with the outer diameter of the linear array. The butt joint between the two end linear arrays is realized, and the connector part adopts a flexible connection mode of flexibly connecting the strong ropes, which is different from the butt joint of rigid connectors. The problems that the flexible connection polyurethane sheath is easy to generate plastic deformation when the bending radius is too small in the process of winding and unwinding the linear array, the integral acoustic performance is influenced by extra vibration are avoided, the dispersion design of the rigid body part of the connector (the flexible connector shells dispersed at the two ends) and the arrangement mode of the flexible area in the middle (the flexible connection polyurethane sheath inner area) can enable the array to absorb and disperse local stress when the underwater work encounters impact such as turbulence and pulsating pressure, and the like, the local fatigue or damage risk is reduced