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CN-121983890-A - Armor shaping mechanism and operating device

CN121983890ACN 121983890 ACN121983890 ACN 121983890ACN-121983890-A

Abstract

The invention relates to the field of submarine cables and discloses an armor layer shaping mechanism and an operating device, wherein the armor layer shaping mechanism comprises a repairing ring, a monitoring piece and a plurality of monitoring pieces, wherein the repairing ring comprises an upper shell and a lower shell which forms a ring shape with the upper shell, the monitoring pieces are respectively arranged on the inner walls of the upper shell and the lower shell, the vertical projection of the monitoring pieces on the inner walls of the upper shell is not overlapped with the vertical projection of the monitoring pieces which are opposite to the inner walls of the lower shell, and the special layout of the monitoring pieces is combined through the synergistic effect of monitoring strain sheets, elastic pieces, buckles and grooves, so that the real-time, accurate and reliable pressure monitoring and overload protection on the armor layer shaping process are realized, and finally the high quality, the high reliability and the high efficiency of shaping work are ensured.

Inventors

  • JIANG QING
  • FANG BIN
  • FENG BIN
  • CAI CHANG
  • JIA LEI
  • LU HAI
  • FU MINGLI
  • ZHANG ZHAO
  • XING YOU
  • Zhan Yunpeng
  • Lao Quan
  • HUI BAOJUN
  • CHEN XIPENG
  • CHEN YUN
  • Liang Qishuai
  • Ying Xipeng
  • PU JINYU
  • YU YANG
  • ZHU WENBO
  • CHEN KUI
  • LIU JIE
  • Hou shuai
  • SU NING
  • ZHAO LINJIE

Assignees

  • 海南电网有限责任公司
  • 南方电网科学研究院有限责任公司

Dates

Publication Date
20260505
Application Date
20251224

Claims (10)

  1. 1. An armor layer shaping mechanism is characterized by comprising, A repair ring (1), the repair ring (1) comprising an upper shell (11) and a lower shell (12) forming a ring shape with the upper shell (11); The monitoring pieces (2) are respectively arranged on the inner walls of the upper shell (11) and the lower shell (12), and the vertical projection of the monitoring pieces (2) on the inner wall of the upper shell (11) is not overlapped with the vertical projection of the monitoring pieces (2) right opposite to the inner wall of the lower shell (12).
  2. 2. Armor repair mechanism according to claim 1, characterized in that the monitoring elements (2) of the inner wall of the upper shell (11) and the top monitoring elements (2) of the inner wall of the lower shell (12) are arranged offset in circumferential direction around the axis of the repair ring (1).
  3. 3. The armor profile-modifying mechanism according to claim 2, wherein the angle formed by the mounting axis of the monitoring element (2) on the inner wall of the upper shell (11) and the lower shell (12) adjacent to the joint face and the extension line of the joint face is not equal.
  4. 4. The armor profile-modifying mechanism according to any one of claims 1 to 3, wherein the monitoring member (2) comprises a monitoring strain gauge (21), an elastic member (22) arranged on one side of the monitoring strain gauge (21) away from the center of the repair ring (1), and a buckle (23) for mounting the monitoring strain gauge (21), and the monitoring strain gauge (21) is mounted on the inner walls of the upper shell (11) and the lower shell (12) through the buckle (23).
  5. 5. The armor profile-modifying mechanism according to claim 4, wherein a monitoring surface (211) and a mounting surface (212) are arranged on one side of the monitoring strain gauge (21) close to the center of the repair ring (1).
  6. 6. The armor profile-modifying mechanism of claim 5, wherein the mounting face (212) has a thickness less than a thickness of the monitoring face (211).
  7. 7. The armor profile-modifying mechanism according to claim 5 or 6, characterized in that grooves (13) are provided in the inner walls of the upper shell (11) and the lower shell (12), the grooves (13) being used for mounting the monitoring element (2).
  8. 8. An operating device is characterized by comprising the armor layer shaping mechanism according to any one of claims 1-7, and further comprising a hinge bracket (3), wherein the hinge bracket (3) comprises a first rod (31) and a second rod (32) hinged with the middle part of the first rod (31), one end of the first rod (31) is fixedly connected with the upper shell (11), and one end of the second rod (32) is fixedly connected with the lower shell (12).
  9. 9. The operating device according to claim 8, further comprising a cylinder (4) and a joint (41) mounted at the tail end of the cylinder (4) and at the output end of the cylinder (4), the cylinder (4) being hinged to the first rod (31) and the second rod (32), respectively, by means of the joint (41).
  10. 10. The operating device according to claim 8 or 9, further comprising a grip (5), wherein the grip (5) comprises a connecting rod (51) fixedly connected with the first rod (31), a ball head sleeve (52) fixedly connected to the top end of the connecting rod (51), a holding rod (53) fixedly connected to the outer side of the connecting rod (51), and an anti-slip ring (54) fixedly connected to the outer side of the holding rod (53).

Description

Armor shaping mechanism and operating device Technical Field The invention relates to the field of submarine cables, in particular to an armor layer shaping mechanism and an operating device. Background The armor layer is used as a mechanical protection structure of the submarine cable and mainly plays roles of tensile resistance, compression resistance and external impact resistance, so that the cable can safely run in a complex submarine environment. However, during the process of cable laying, operation or maintenance, the armor layer may generate problems such as local deformation, irregular roundness and the like due to the action of external force, which affects the mechanical performance and the protection effect on the internal structure. At present, in the plugging and repairing process of the oil-filled submarine cable, an armor layer shape-repairing experimental device is often adopted to repair an armor layer with irregular roundness so as to recover the design geometric shape of the armor layer. Although the traditional shaping device can realize the basic shape correction function, the traditional shaping device has the remarkable defect that the pressure applied to the armor layer in the shaping process cannot be monitored in real time. Because the armor is closely attached to the internal anti-corrosion layer and the lead sheath, if the pressure applied in the shaping process is not controlled, the armor is extremely easy to be excessively pressed, and then the anti-corrosion layer and the lead sheath are extruded, deformed and even damaged, so that the secondary damage is formed. Such damage not only weakens the corrosion resistance of the cable, but may also affect its electrical insulation properties and long-term operational reliability. Disclosure of Invention Therefore, the technical problem to be solved by the invention is that the secondary structural damage of the armor layer, the anticorrosive layer and the lead sheath is easily caused by the fact that the traditional shape modifying device cannot monitor and regulate the shape modifying pressure in real time. The technical problems are solved by the following technical proposal that the invention provides an armor layer shaping mechanism which comprises, A repair ring including an upper case and a lower case forming a ring shape with the upper case; The monitoring pieces are respectively arranged on the inner walls of the upper shell and the lower shell, and the vertical projection of the monitoring piece on the inner wall of the upper shell is not overlapped with the vertical projection of the monitoring piece right opposite to the inner wall of the lower shell; the repairing ring can be sleeved outside the armor layer to be repaired through opening and closing actions of the upper shell and the lower shell, so that the armor layer can be repaired, meanwhile, the plurality of monitoring pieces are asymmetrically distributed on the inner walls of the upper shell and the lower shell, the integral measuring precision can be improved through an error homogenizing effect, periodic interference is effectively broken, and the robustness and the reliability of the pressure monitoring system are remarkably improved. In a preferred embodiment of the armor layer shaping mechanism, the monitoring pieces of the inner wall of the upper shell and the top monitoring pieces of the inner wall of the lower shell are arranged in a staggered manner in the circumferential direction around the axis of the repair ring; Specifically, the monitoring pieces on the inner walls of the upper shell and the lower shell are staggered in the circumferential direction to form uneven distribution, the arrangement further strengthens the advantages of asymmetric design, ensures that the monitoring pieces can acquire pressure data of the armor layer from different phase angles in the shaping process, thereby more comprehensively reflecting the roundness repairing state of the armor layer, avoiding measurement blind areas or data distortion possibly caused by periodic arrangement of sensors, and on the basis, the number of the monitoring pieces can be effectively reduced due to the uneven distribution, the cost can be reduced, the reaction force of the monitoring pieces to the armor layer can be reduced, and the equipment can be ensured to be more labor-saving and relaxed when sliding along the outer surface of the armor layer. In a preferred embodiment of the armor layer shaping mechanism, the included angles formed by the installation axes of the monitoring pieces adjacent to the joint surface on the inner walls of the upper shell and the lower shell and the extension line of the joint surface are unequal, and the included angles of the two groups are 30 degrees and 35 degrees respectively; specifically, in the submarine cable armor layer shaping process, the area with the largest stress release or deformation is usually near the clamp opening, and the sensor close