CN-116417191-B - Bearing device and bearing equipment for armored cable

Abstract

A bearing device and bearing equipment for an armored cable are characterized by comprising a bearing main body, wherein the bearing main body comprises a first glue injection cavity and a second glue injection cavity which are penetrated in the axial direction, a locking conical surface is formed at one end, close to the first glue injection cavity, of the second glue injection cavity, a locking assembly is arranged coaxially and comprises a sleeve, one end of the sleeve is provided with a conical outer surface matched with the locking conical surface, the other end of the sleeve is provided with a clamping groove in the circumferential direction, a core is sleeved in the sleeve, an accommodating space is formed between the outer surface of the core and the inner surface of the sleeve, a cavity is penetrated in the axial direction of the core, and a limiting part matched with the clamping groove is formed at one end of the core. The invention can realize the combination of mechanical locking and casting processes, and effectively improves the body strength of the armored cable.

Inventors

• CHEN GUANG
• LIU JIYUAN
• HUANG HAINING
• LI YU
• WANG PENG
• Liu Chonglei
• ZHANG PENGFEI

Assignees

• 中国科学院声学研究所

Dates

Publication Date

20260508

Application Date

20230317

Claims (1)

1. 1. A load bearing apparatus for armoured cables comprising a load bearing means, wherein the load bearing means comprises: A loadbearing body, the loadbearing body comprising: A first glue injection cavity and a second glue injection cavity are arranged in a penetrating manner along the axis direction, wherein a locking conical surface is formed at one end, close to the first glue injection cavity, of the second glue injection cavity, and one end, close to the first glue injection cavity, of the locking conical surface is arranged as a small end; And A locking assembly comprising a coaxial arrangement: a sleeve having a tapered outer surface formed at one end thereof and engaged with the locking tapered surface and an engagement groove formed at the other end thereof in the circumferential direction on the inner surface, and The core is sleeved in the sleeve, an accommodating space is formed between the outer surface of the core and the inner surface of the sleeve so as to allow an armor wire of an armored cable to pass through, and a cavity is penetrated through the core along the axial direction so as to allow the cable of the armored cable to pass through; the bearing body comprises a conical part and a cylindrical part which are coaxially arranged, wherein the big end of the conical part is connected with the cylindrical part, and The first glue injection cavity and the second glue injection cavity are respectively positioned in the conical part and the cylindrical part; at least one of the locking conical surface and the conical outer surface is provided with a communication groove which is communicated with the first glue injection cavity and the second glue injection cavity; A plurality of glue pouring grooves are formed in the inner wall surface of the second glue pouring cavity at intervals; at least one of the inner surface of the sleeve and the outer surface of the core is provided with zigzag protrusions along the circumferential direction; The locking assembly comprises a cylindrical bushing sleeved in the accommodating space between the sleeve and the core, a spiral through hole extending along the axial direction is formed in the wall of the cylindrical bushing, and the spiral mode of the spiral through hole is consistent with that of an armor metal wire of the armor cable; the load bearing apparatus for armoured cables further comprises: The bending protection assembly comprises a tubular protection sleeve, a third connecting piece and a first connecting piece, wherein a plurality of annular protruding parts are closely distributed on the outer part of the tubular protection sleeve along the axial direction; the bearing device for the armoured cable further comprises a second connecting piece, one end of the second connecting piece is fixedly connected with one end of the bearing main body corresponding to the second glue injection cavity, the other end of the second connecting piece is connected with a swinging connecting component, The swing connecting assembly comprises a universal coupling and a bearing connecting plate, wherein two ends of the universal coupling are respectively hinged with the second connecting piece and the bearing connecting plate, so that the bearing connecting plate can swing in multiple degrees of freedom relative to the second connecting piece.

Description

Bearing device and bearing equipment for armored cable Technical Field The invention relates to the technical field of ocean exploration auxiliary tools, in particular to a bearing device and bearing equipment for an armored cable. Background The armoured cable is a solid combination body composed of different cables and metal armoured protective layers, and comprises armoured thermocouples, armoured thermal resistors, armoured heaters, armoured leads, armoured optical cables and the like. The armor protective layer of the armor cable can be added to the cable of any construction to increase the mechanical strength, tensile strength and compressive strength of the cable. The application of the armored optical cable to the ocean science will be described below as an example. For better utilization and management of the ocean, humans utilize various modern technologies and sensors to detect and probe the ocean environment. When the marine science investigation ships and the like are operated, the winch and the steel wire armored optical cable are used for placing the underwater detection equipment in the deep ocean to carry out offshore bottom investigation or detection operation. The bearing device is a key butt joint device for connecting the steel wire armored optical cable with the underwater detection equipment. The bearing device is a key system component matched with the armored photoelectric composite cable, and the strength of the bearing device is related to the safety of the whole detection system. The function of the cable is that the tensile force of each layer of tensile steel wire armor is completely and uniformly transmitted to the bearing connecting plate, so that the cable is a tie for connecting underwater detection equipment and armored optical cables, meanwhile, the optical units and the electric units in the optical cables are not born external load, and continuous optical-electrical signal communication can be ensured in the operation process with the underwater detection equipment. The steel wire armored optical cable belongs to engineering custom products, and with the gradual trend of the national investigation and detection operation to the ocean from shallow sea to deep sea in recent years, the design, the production process and the test detection of the steel wire armored optical cable are gradually mature, but the matched key bearing devices have few development units, the matched technical level is low, the strength utilization rate of the existing used bearing devices is low, the redundant design of the armored optical cable is higher to a certain extent, and the exploration pace to deep sea is restricted. The bearing device is mainly divided into two types of pouring type and wedge locking type. The casting mode is generally two modes, namely, casting with molten metal and casting with epoxy resin. The inner sheath layer with the molten metal casting inner sheath has high requirement on temperature, the inner sheath layer of the casting part needs to be cooled, and the assembly process difficulty is high. Because the anti-corrosion ointment with high adhesive force on the surface of the armor layer is difficult to clean up completely, the epoxy resin casting can be difficult to reach the body strength of the steel wire armored optical cable due to insufficient friction force between the resin and the steel wire. In addition, in the casting process, the winding angle of each layer of steel wires is changed after the armored steel wires are scattered, so that different steel wires in the same steel wire layer are stressed differently, and the body strength of the steel wire armored optical cable is difficult to reach by the bearing device. The installation process of the mechanical wedge locking mode is complex, each layer is required to be locked independently, the requirement on operators is high, no standard model of operation hydraulic machine is available, the locking tool and the wedge locking structural member are required to be customized according to the design of armored optical cable paths of different sizes, the prestress of each layer is different due to layered operation in the locking process, and plastic deformation is generated in the radial direction of the steel wire, so that the independent wedge locking structure can only reach about 80% of the strength of the steel wire armored optical cable body at most. Disclosure of Invention In order to provide a novel armored cable bearing device which has large traction load capacity and can adapt to various complicated sea conditions and can prevent cables from being excessively bent, the invention provides a bearing device for armored cables, which comprises a bearing main body, a locking assembly and a locking assembly, wherein the bearing main body is provided with a first glue injection cavity and a second glue injection cavity in a penetrating way along the axial direction, the second glue injection cavity forms