CN116417191A - Bearing device and bearing equipment for armored cable - Google Patents

Bearing device and bearing equipment for armored cable Download PDF

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Publication number
CN116417191A
CN116417191A CN202310261744.8A CN202310261744A CN116417191A CN 116417191 A CN116417191 A CN 116417191A CN 202310261744 A CN202310261744 A CN 202310261744A CN 116417191 A CN116417191 A CN 116417191A
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CN
China
Prior art keywords
bearing
load
glue injection
sleeve
cable
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310261744.8A
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Chinese (zh)
Inventor
陈�光
刘纪元
黄海宁
李宇
王朋
刘崇磊
张鹏飞
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Institute of Acoustics CAS
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Institute of Acoustics CAS
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Publication date
Application filed by Institute of Acoustics CAS filed Critical Institute of Acoustics CAS
Priority to CN202310261744.8A priority Critical patent/CN116417191A/en
Publication of CN116417191A publication Critical patent/CN116417191A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/24—Devices affording localised protection against mechanical force or pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/14—Submarine cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Cable Accessories (AREA)

Abstract

A load bearing device and load bearing equipment for armoured cables, the load bearing device comprising: 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 the second glue injection cavity forms a locking conical surface at one end close to the first glue injection cavity; a locking assembly comprising a coaxial arrangement: a sleeve, one end of which is provided with a conical outer surface matched with the locking conical surface, and the other end of which is provided with a clamping groove along the circumferential direction on the inner surface; the core is sleeved in the sleeve, and an accommodating space is formed between the outer surface of the core and the inner surface of the sleeve; the core is communicated with a cavity along the axial direction; one end of the core forms a limiting part matched with the clamping groove. The invention can realize the combination of mechanical locking and casting processes, and effectively improves the body strength of the armored cable.

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. Among them, casting generally has two ways: firstly, casting with molten metal, and secondly, 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 prevent the cable from being excessively bent, the invention provides a bearing device for armored cable, which 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, one end of which is provided with a conical outer surface matched with the locking conical surface, and the other end of which is provided with a clamping groove along the circumferential direction on the inner surface; and
the core is sleeved in the sleeve, and 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 the armor cable to pass through; and, the core is penetrated with a cavity along the axial direction to allow the cable of the armoured cable to pass through; and one end of the core is provided with a limiting part matched with the clamping groove.
The invention also provides a load-bearing apparatus for an armoured cable, the load-bearing apparatus for an armoured cable comprising: a bend protection assembly, the bend protection assembly comprising: the outer part of the tubular protective sleeve is closely provided with a plurality of annular protruding parts along the axial direction; and a third connecting piece fixedly arranged at one end of the tubular protective sleeve; and the bearing device for the armored cable is fixedly connected with the third connecting piece through a first connecting piece, wherein the first connecting piece is fixedly connected with one end (namely the small end of the conical part) of the bearing main body, which corresponds to the first glue injection cavity.
Preferably, the bearing device for the armored cable further comprises a second connecting piece, one end of the second connecting piece is fixedly connected to the cylindrical part, and the other end of the second connecting piece is connected with a swinging connecting assembly; 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.
The invention has the beneficial effects that: the first glue injection cavity and the second glue injection cavity of the bearing device are mutually matched with the locking assembly, so that the combination of two processes of mechanical locking and pouring can be realized, and the body strength of the armored cable is effectively improved. Specifically, the locking assembly of the invention enables the armored optical cable steel wire to be uniformly stressed, and fully utilizes the bearing capacity of the armored optical cable steel wire. On the other hand, glue is filled after buckling to further improve the bearing capacity of the bearing device. The two are combined, so that the strength of the steel wire armored optical cable body can be further improved under the condition that the armored optical cable and the glue are not changed.
When the armored optical cable is in towing, under the action of seawater, the armored optical cable can bend along the joint of the bearing device, and when the bending radius is too small, the cable inside the armored optical cable can be damaged due to fatigue over time, so that the service life of the armored optical cable is reduced. The bending protection part of the invention has the main purpose of preventing the bending radius from being smaller than the allowable minimum bending radius when the armored optical cable is bent, and improving the service life of the armored optical cable.
In summary, the bearing device and the bearing equipment for the armored cable have the advantages that the steel wire is buckled and locked firstly, then glue is filled, the strength utilization rate of the body is high, and the overall benefit is high; the cable can be prevented from being excessively bent, and the service life of the cable is prolonged; the bearing device is provided with the universal coupling, so that part of internal force generated by sea water disturbance can be counteracted, and the connection reliability is improved.
Drawings
Fig. 1 is a general schematic view of a load bearing apparatus of the present invention;
FIG. 2 is a schematic perspective view of a load bearing assembly of the present invention;
FIG. 3 is a cross-sectional view of a loadbearing body of the invention;
FIG. 4 is a cross-sectional view of the locking assembly of the present invention;
fig. 5 is a front view of the load bearing apparatus of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is an enlarged view of a portion of I of FIG. 5 showing the connection of the third connector to the first connector;
FIG. 8 is an enlarged view of a portion of II of FIG. 5 showing the connection of the first connector and the taper;
FIG. 9 is an enlarged view of a portion of III of FIG. 5 showing the mating relationship of the loadbearing body and locking assembly;
FIG. 10 is an enlarged view of a portion of IV of FIG. 5 showing the connection of the second connector to the swing link assembly;
FIG. 11 is a partial schematic view in the direction A of FIG. 6;
fig. 12 is a schematic view of a bend protection assembly to prevent excessive bending of an armoured cable.
Reference numerals:
Figure BDA0004131457780000041
Detailed Description
The bearing device and the bearing equipment for the armored cable provided by the invention comprise three parts of the bearing device 1, the bending protection component 3 and the swinging connection component 4, and the three parts are further described with reference to the accompanying drawings.
1. Bearing device
As shown in fig. 2, 3, 4 and 9, the present invention provides a load bearing device for armoured cables, the load bearing device 1 comprising: a loadbearing body 11, the loadbearing body 11 comprising: a tapered portion 111 and a cylindrical portion 112 coaxially provided, wherein a large end of the tapered portion 111 is connected to the cylindrical portion 112; a first glue injection cavity 113 and a second glue injection cavity 114 penetrating the conical portion 111 and the cylindrical portion 112 along the axial direction respectively, wherein a locking conical surface 115 is formed at one end of the second glue injection cavity 114 close to the first glue injection cavity 113, and one end of the locking conical surface 115 close to the conical portion 111 is a small end; and, a locking assembly 12, the locking assembly 12 comprising a coaxially disposed: a sleeve 121, wherein one end of the sleeve 121 is formed with a tapered outer surface 1211 matched with the locking tapered surface 115, and the other end is formed with a clamping groove 1212 along the circumferential direction on the inner surface; and a core 122, wherein the core 122 is sleeved in the sleeve 121, and an accommodating space is formed between the outer surface of the core 122 and the inner surface of the sleeve 121 to allow the armor wires of the armor cable 2 to pass through; and, the core 122 has a cavity penetrating in the axial direction to allow the cable of the armoured cable 2 to pass through; and, a limit part 1221 matched with the clamping groove 1212 is formed at one end of the core 122. The first glue injection cavity 113 and the second glue injection cavity 114 of the bearing device are mutually matched with the locking assembly 12, so that the combination of two processes of mechanical locking and pouring can be realized, and the body strength of the armored cable 2 is effectively improved.
As shown in fig. 3, preferably, at least one of the locking cone 115 and the tapered outer surface 211 is provided with a communication groove 118 communicating with the first and second glue injection cavities 113 and 114 to allow glue to pass through in a state where the locking cone 115 is tightly fitted with the tapered outer surface 1211.
Preferably, a plurality of glue filling grooves are disposed on the inner wall surface of the second glue injection cavity 114 at intervals, so as to increase the contact area between the glue and the second glue injection cavity 114, thereby preventing degumming.
As shown in fig. 4, preferably, the locking assembly 12 includes a cylindrical bushing 123 sleeved in the accommodating space between the sleeve 121 and the core 122, a spiral through hole 1231 extending along an axial direction is formed in a cylindrical wall of the cylindrical bushing 123, and a spiral manner of the spiral through hole 1231 is set to be consistent with that of an armoured wire of the armoured cable, so that a winding angle of each layer of wire is kept unchanged, a torsion balance design of an armoured optical cable body is not damaged, and locking forces of different wires in the same wire layer are the same, so that a body strength of the wire armoured optical cable is ensured to be maintained to the greatest extent by a bearing device. Preferably, the cylindrical bushing 123 is made of a wear-resistant material. Preferably, the cylindrical bushing 123 has a small interference state in the gap between the sleeve 121 and the core 122, and the sheathing wire of the sheathing cable passes through the screw through-hole in the cylindrical wall of the cylindrical bushing 123, and then applies pressure in the radial direction to press the sleeve 121, the core 122 and the cylindrical bushing 123 together. Preferably, at least one of the inner surface of the sleeve 121 and the outer surface of the wick 122 is provided with saw-tooth shaped protrusions in the circumferential direction to enhance the biting force after the two are pressed together.
2. Bending protection assembly
As shown in fig. 1, 5, 6 and 12, the load bearing apparatus for armoured cables further comprises a bend protection assembly 3, the bend protection assembly 3 comprising: the tubular protection sleeve 31, the outer portion of the tubular protection sleeve 31 is closely arranged with a plurality of annular protruding portions 311 along the axial direction, when the armoured cable 2 is bent, the plurality of annular protruding portions 311 can mutually abut to limit the bending degree of the armoured cable 2, preferably, the tubular protection sleeve 31 and the annular protruding portions 311 thereof are made of rubber; and a third connecting member 32 fixedly provided at one end of the tubular protective sheath 31, preferably, the third connecting member 32 is vulcanized integrally with the tubular protective sheath 31; the bearing device for armoured cable further comprises a first connecting piece 116 fixedly connected to the small end of the conical portion 111, the first connecting piece 116 is fixedly connected to the third connecting piece 32, preferably, as shown in fig. 7 and 8, one end of the third connecting piece 32 is provided with a groove-shaped end face, the groove-shaped end face is matched with the end face of the first connecting piece 116, and the first connecting piece 116 is connected and fastened with the third connecting piece 32 by two half hoops.
3. Swing connection assembly
As shown in fig. 1, 5, 6, 9, 10 and 11, in order to counteract a part of the internal force generated by the sea water disturbance and improve the connection reliability, the load bearing device for armoured cables further comprises a swinging connection assembly 4. The bearing device for armoured cable further comprises a second connecting piece 117, one end of the second connecting piece 117 is fixedly connected to one end of the bearing main body 11 corresponding to the second glue injection cavity 114 (i.e. one end of the cylindrical portion 112 away from the conical portion 111), and the other end of the second connecting piece 117 is connected to the swinging connecting assembly 4; wherein the swing connecting assembly 4 comprises a universal coupling 41 and a bearing connecting plate 42, the two ends of the universal joint 41 are respectively hinged with the second connecting piece 117 and the bearing connecting plate 42, so that the bearing connecting plate 42 can swing in multiple degrees of freedom relative to the second connecting piece 117.
Preferably, one end of the second connecting member 117 is provided as a conical rotary body structure, a thread is provided in the interior of the side near the end face of the end to connect with the bearing body, and the interface of the other end of the second connecting member 117 is provided as a double-earring. Preferably, the interfaces at two ends of the universal joint 41 are provided as single ear rings which are staggered with each other, and are hinged with the second connecting piece 117 through the pin shaft, the perforated nut and the cotter pin. One pad on each side of the single ear ring of the universal joint 41. The interface at one end of the bearing connection plate 42 is a double-ear ring, and is hinged with the universal coupling 41 through the pin shaft, the perforated nut and the cotter pin, and the other end of the bearing connection plate 42 is provided with five through holes on the same straight line in sequence as an interface connected with the underwater detection equipment. Preferably, the sacrificial anode block is fixed at the double ear position of the sleeve, and the direction is parallel to the double ear axial direction.
4. Process for assembling load-bearing equipment
The assembly process of the load-bearing apparatus for an armored cable of the present invention is described below, wherein the armored cable is a steel wire armored optical cable:
before installation, the two half hoops are disassembled, the tubular protective sheath is removed, and the first connector 116 is removed. The second connecting piece 117 is unscrewed, and the second connecting piece 117 is in connection with the pin shaft, the gasket, the perforated nut, the cotter pin, the universal coupling, the bearing connecting plate and the sacrificial anode block. The wire-armoured optical cable is passed through the tubular protective sheath, the third connector, the first connector 116, the loadbearing body 11, the sleeve 121 in sequence and extended a suitable distance. Thereafter, according to the following the steps are as follows:
(a) Armored optical cable passing through steel wire
The outer layer wire and the inner layer wire of the wire-armored optical cable are stripped a certain distance from the end of the cable, and the optical cable with the rubber sheath inside is passed through the middle of the cylindrical bushing 123 and the core 122.
(b) Buckling locking steel wire
The outer and inner wires of the wire-armored optical cable are passed through the screw holes of the cylindrical wall of the cylindrical sleeve 123, and then the distance between the sleeve 121 and the core 122 is adjusted, so that the cylindrical sleeve 123 with the wires is placed between the sleeve 121 and the core 122. The sleeve 121, wire-threaded cylindrical bushing 123, and core 122 are swaged together using a hydraulic swager to form a lock assembly.
(c) Resin glue for pouring
Tightening the locking assembly towards the locking cone 115 so that the locking cone 115 and the tapered outer surface fit, screwing the first connecting piece 116, taping the end of the first connecting piece 116 remote from the loadbearing body 11, and preventing the epoxy glue poured later from flowing out. The load-bearing main body 11 is clamped on a vice, epoxy glue is poured from the opening of the cylindrical part 112 of the load-bearing main body 11 (namely, the opening of the second glue injection cavity 114), a plurality of communication grooves 118 are uniformly distributed in the circumferential direction inside the load-bearing main body 11 so as to allow the glue to be communicated with the first glue injection cavity 113 and the second glue injection cavity 114 under the condition that the locking conical surface 115 is tightly matched with the conical outer surface 1211, when the epoxy glue is poured onto the upper surface of the sleeve 121, pouring is stopped, and after the epoxy glue is solidified, cold sulfur glue is continuously poured until the end face of the cylindrical part 112 of the load-bearing main body 11 is flush, and the pouring operation is completed. The cold flow glue is poured to isolate the seawater, protect the steel wires of the bearing part in the bearing main body 11 from seawater corrosion, isolate the poured epoxy resin from the seawater, and improve the corrosion resistance. In the process of pouring the glue, the bearing body 11 is continuously knocked, and bubbles in the glue are discharged.
(d) Completion of assembly
The adhesive tape wound around one end of the first connecting member 116 is torn, one end of the third connecting member 32 is fixedly connected to one end of the first connecting member 116, and the two half hoops are used to fasten the third connecting member 32 and the first connecting member 116. The second connecting piece 117 is fixedly connected with the bearing body 11 to complete the assembly, and the bearing device 1 can be used.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.

Claims (8)

1. Load-bearing device for armoured cables, characterized in that the load-bearing device (1) comprises:
a loadbearing body (11), the loadbearing body (11) comprising:
a first glue injection cavity (113) and a second glue injection cavity (114) are arranged in a penetrating manner along the axis direction, wherein the second glue injection cavity (114) forms a locking conical surface (115) at one end close to the first glue injection cavity (113), and one end of the locking conical surface (115) close to the first glue injection cavity (113) is a small end;
and
a locking assembly (12), the locking assembly (12) comprising a coaxially arranged:
a sleeve (121), wherein one end of the sleeve (121) is provided with a conical outer surface (1211) matched with the locking conical surface (115), and the other end of the sleeve is provided with a clamping groove (1212) along the circumferential direction on the inner surface; and
a core (122), wherein the core (122) is sleeved in the sleeve (121), and an accommodating space is formed between the outer surface of the core (122) and the inner surface of the sleeve (121) so as to allow an armor wire of the armor cable (2) to pass through; and, the core (122) has a cavity penetrating in the axial direction to allow the passage of the cable of the armoured cable (2); and a stopper (1221) that engages with the engagement groove (1212) is formed at one end of the core (122).
2. The load-bearing device for armoured cables according to claim 1, characterized in that said load-bearing body (11) comprises a conical portion (111) and a cylindrical portion (112) arranged coaxially, wherein the large end of said conical portion (111) is connected to said cylindrical portion (112); and
the first glue injection cavity (113) and the second glue injection cavity (114) are respectively positioned in the conical part (111) and the cylindrical part (112).
3. The load bearing apparatus for an armored cable according to claim 1, wherein a communication groove (118) that communicates with the first and second glue injection chambers (113, 114) is provided on at least one of the locking cone surface (115) and the tapered outer surface (1211).
4. The load bearing apparatus for armored cable of claim 1, wherein a plurality of glue pouring grooves are provided on the inner wall surface of the second glue pouring cavity (114) at intervals.
5. The load bearing apparatus for an armored cable according to claim 1, wherein at least one of an inner surface of the sleeve (121) and an outer surface of the core (122) is provided with zigzag protrusions in a circumferential direction.
6. The load-bearing device for armoured cables according to claim 1, characterized in that said locking assembly (12) comprises a cylindrical bushing (123) fitted in said containing space between said sleeve (121) and said core (122), a helical through hole (1231) extending helically in axial direction being formed in the cylindrical wall of the cylindrical bushing (123), said helical through hole (1231) being arranged in a helical manner coinciding with the helical manner of the armoured wire of said armoured cable (2).
7. A load bearing apparatus for an armoured cable based on the load bearing apparatus of claims 1-6, characterized in that the load bearing apparatus for an armoured cable further comprises:
a bend protection assembly (3), the bend protection assembly (3) comprising: a tubular protective sleeve (31), wherein a plurality of annular protruding parts (311) are closely distributed on the outer part of the tubular protective sleeve (31) along the axial direction; and a third connecting piece (32) fixedly arranged at one end of the tubular protective sleeve (31);
the bearing device is fixedly connected with the third connecting piece (32) through a first connecting piece (116), wherein the first connecting piece (116) is fixedly connected to one end of the bearing main body (11) corresponding to the first glue injection cavity (113).
8. The load-bearing apparatus for armoured cables according to claim 7, characterized in that said load-bearing apparatus for armoured cables further comprises a second connecting element (117), one end of said second connecting element (117) being fixedly connected to the end of said load-bearing body (11) corresponding to said second glue injection chamber (114), the other end being connected to a swinging connection assembly (4); wherein,,
the swing connecting assembly (4) comprises a universal coupling (41) and a bearing connecting plate (42), wherein two ends of the universal coupling (41) are respectively hinged with the second connecting piece (117) and the bearing connecting plate (42) so that the bearing connecting plate (42) can swing in multiple degrees of freedom relative to the second connecting piece (117).
CN202310261744.8A 2023-03-17 2023-03-17 Bearing device and bearing equipment for armored cable Pending CN116417191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310261744.8A CN116417191A (en) 2023-03-17 2023-03-17 Bearing device and bearing equipment for armored cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310261744.8A CN116417191A (en) 2023-03-17 2023-03-17 Bearing device and bearing equipment for armored cable

Publications (1)

Publication Number Publication Date
CN116417191A true CN116417191A (en) 2023-07-11

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Application Number Title Priority Date Filing Date
CN202310261744.8A Pending CN116417191A (en) 2023-03-17 2023-03-17 Bearing device and bearing equipment for armored cable

Country Status (1)

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CN (1) CN116417191A (en)

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