CN110571713B - Self-holding traction paying-off tool and use method - Google Patents
Self-holding traction paying-off tool and use method Download PDFInfo
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- CN110571713B CN110571713B CN201910958999.3A CN201910958999A CN110571713B CN 110571713 B CN110571713 B CN 110571713B CN 201910958999 A CN201910958999 A CN 201910958999A CN 110571713 B CN110571713 B CN 110571713B
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- submarine cable
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- 238000000034 method Methods 0.000 title claims description 19
- 238000010276 construction Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 19
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- 238000012545 processing Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract 1
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model provides a self-holding pulls unwrapping wire instrument, which comprises an outer shell, jack-up traction element and adjusting device, at least three rows of eccentric wheelsets are installed to the equal angle in shell outer peripheral axial, the eccentric wheelset includes two at least eccentric wheels and eccentric wheel outer peripheral face is provided with the roughness face, be provided with the connecting axle in the shell outer peripheral axial, the connecting axle quantity corresponds with eccentric wheelset quantity, first eccentric hole and second eccentric hole have been seted up on the eccentric wheel, the eccentric wheel passes through second eccentric hole swivelling joint on the shell outer peripheral, the eccentric wheel passes through first eccentric hole swivelling joint in the connecting axle for the connecting axle axial displacement is connected on the shell, adjusting device moves to connecting axle tip department and offsets the connecting axle tip and makes the eccentric wheelset compress tightly on the sea cable outer periphery. The tool of the invention improves the use frequency and reliability and reduces the construction cost; the submarine cable is simple and convenient to install, the surface stress of the submarine cable is increased, and the submarine cable cannot slip; realizing the center positioning of the submarine cable; protecting the submarine cable end seal and avoiding the end from water inflow.
Description
Technical Field
The invention relates to the technical field of cable paying-off, in particular to a self-holding traction paying-off tool and a using method thereof.
Background
Cables are a generic term for items such as optical cables and electric cables. The cable has a plurality of purposes, is mainly used for controlling multiple functions such as installation, connection equipment, power transmission and the like, and is a common and indispensable thing in daily life.
Submarine cables are cables wrapped with insulating material and laid on the sea floor for telecommunication transmission. With the great development of the ocean industry in China, corresponding tasks are required to be completed through ocean cables aiming at the fields of ocean islands, oil-gas platforms, wind power platforms, transoceanic electric energy transmission, communication and the like. In recent years, the submarine cable laying strength is greatly improved, and the submarine cable laying requirement is still continuously increasing. Currently, submarine cables are mainly laid through two modes of a traction head or a traction net sleeve.
Traction heads are used only in an important process and are disposable products and are costly. Although the traction net sleeve can be reused, after construction for several times, the steel wire rope on the traction net sleeve is extremely easy to wear out, so that the traction accident is caused by failure, and the reliability of repeated use is not high. When the traction net sleeve is constructed and installed, the center positioning is not achieved, and the local steel wire rope is damaged due to overlarge stress. When the traction net sleeve is constructed, the submarine cable end needs to be guaranteed to have certain elasticity and has no tip, otherwise, the traction net sleeve can be directly disconnected at the end.
Therefore, aiming at the defects of the existing traction head and traction net sleeve, the self-holding traction paying-off tool needs to be provided, so that the use frequency and reliability can be improved, and the cable center positioning can be realized.
Disclosure of Invention
In view of the above, the invention aims to provide a self-holding traction paying-off tool and a use method thereof, wherein the tool improves the use frequency and reliability and reduces the construction cost; the submarine cable is simple and convenient to install, the stress on the surface of the submarine cable is increased, and the submarine cable cannot slip; the center positioning of the submarine cable can be realized; protecting the submarine cable end seal and avoiding the end from water inflow.
In order to achieve the above purpose, the invention adopts the following technical scheme: the tool is used for clamping the submarine cable and is characterized in that: including shell body, jack-up traction element and adjusting device, jack-up traction element install in on the shell body tip, adjusting device lockable adjust and axial connection in the shell body is kept away from the tip department of jack-up traction element end, the shell body circumference is epaxial equiangular mounting has at least three row eccentric wheelsets, the eccentric wheelset include two at least eccentric wheels just the eccentric wheel outer peripheral face is provided with the roughness, shell body circumference is epaxial to be provided with the connecting axle, the connecting axle quantity with eccentric wheelset quantity corresponds and its tip is close to adjusting device department, offer first offset hole and second offset hole on the eccentric wheel, first offset hole is located eccentric wheel periphery edge department, the second offset hole is located the eccentric wheel is close to central point department, the eccentric wheel passes through second offset hole swivelling joint in on the shell body circumference, the eccentric wheel passes through first offset hole swivelling joint in the connecting axle for the connecting axle axial movement is connected in on the shell body, adjusting device has seted up first offset hole and second offset hole, the adjusting device makes the tip is in on the connecting axle is located the outer peripheral joint of moving.
Preferably, at least three rows of through groove groups corresponding to the number of the eccentric wheel groups are formed in the circumferential axial direction of the outer shell at equal angles, each through groove group comprises at least two through grooves corresponding to the number of the eccentric wheels, and the eccentric wheels are rotationally connected to two side walls of the through grooves on the circumferential direction of the outer shell through the second eccentric holes.
Preferably, the through groove is rectangular or diamond-shaped or oval, a rectangular structure or diamond-shaped structure or oval structure corresponding to the through groove is arranged in the connecting shaft, and the eccentric wheel is rotationally connected in the rectangular structure or diamond-shaped structure or oval structure of the connecting shaft through the first eccentric hole.
Preferably, at least two pairs of connecting shaft positioning holes corresponding to the first eccentric holes are formed in two sides of the connecting shaft, and the eccentric wheel is communicated with the connecting shaft positioning holes through the first eccentric holes and is rotationally connected to the connecting shaft.
Preferably, the first eccentric hole penetrates through and is fixedly connected with a first positioning shaft, and the eccentric wheel penetrates through the first eccentric hole, is in rotary connection with the first positioning shaft and is in a pair of connecting shaft positioning holes.
Preferably, a pair of outer shell positioning holes corresponding to the second eccentric holes are formed in the positions, located on two sides of the through groove, of the outer shell body, and the eccentric wheel is communicated with the outer shell positioning holes through the second eccentric holes and is connected to the outer shell body in a rotating mode.
Preferably, the second eccentric hole penetrates through and is fixedly connected with a second positioning shaft, and the eccentric wheel is rotationally connected in the positioning hole of the shell through the second positioning shaft.
Preferably, the adjusting device is a hollow cylinder and the inner wall of the adjusting device is provided with a calibration nut with internal threads, the outer periphery of the end part of the outer shell is provided with external threads, and the calibration nut is in threaded connection with the external threads on the outer shell through the internal threads.
Preferably, the hoisting traction piece is a traction head or a shackle or a lifting hook or a wire rope or a butterfly-shaped ring, and the traction head or the shackle or the lifting hook or the wire rope or the butterfly-shaped ring is arranged on the end part of the outer shell.
The invention also provides a use method of the self-holding traction paying-off tool, which comprises the following steps:
a) Firstly, loosening the adjusting device to enable the connecting shaft to freely move;
b) Installing the submarine cable, processing the submarine cable end according to construction requirements of a specific site, then firstly taking down the lifting traction piece, penetrating the submarine cable from the end part of the outer shell close to the installation position of the adjusting device, and installing the lifting traction piece after processing the end part of the outer shell close to the installation position of the lifting traction piece; if the submarine cable is not required to be processed, directly penetrating the submarine cable from the end of the outer shell close to the installation position of the adjusting device to the other end of the outer shell;
c) Tightening the adjusting device to enable the eccentric wheel to be in contact with the submarine cable, so that the submarine cable is centrally positioned, and a pre-tightening force is provided on the submarine cable sheath;
d) The initial tension is provided by using equipment, so that the eccentric wheel is further tightly held and then the adjusting device is screwed up again, and the tool is prevented from loosening in the construction process;
e) And (3) after the installation is finished, carrying out traction paying-off construction.
Compared with the prior art, the invention has the following beneficial technical effects: (1) The design of the eccentric wheel realizes simple installation of the submarine cable, and the stress acting on the surface of the submarine cable sheath can be correspondingly increased along with the increase of the pulling force in the pulling process, so that the submarine cable cannot slip; (2) Through the arrangement of the eccentric wheel array structure and the adjusting device, the center of the submarine cable is positioned, the submarine cable is not deviated in the traction process, meanwhile, the acting force on the surface of the submarine cable sheath can be shared, the stress is uniform, and therefore the usability of the tool is improved; (3) The key parts are placed in the tool, so that the abrasion problem in the pulling process is avoided, and the reliability of repeated use is improved; (4) The product can be reused through the non-fixed design, so that the construction cost is reduced; (5) The submarine cable ends can be independently placed in the tool and are in an unstressed state, so that the submarine cable ends are protected from sealing, and water inflow of the ends is avoided; (6) Through the non-fixed design, the product can be reused, and the construction cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the whole body provided by the invention;
FIG. 2 is a schematic view of an outer housing provided by the present invention;
FIG. 3 is a partial cross-sectional view provided by the present invention;
FIG. 4 is a schematic view of an eccentric wheel provided by the present invention;
FIG. 5 is a schematic diagram of a traction head according to the present invention;
FIG. 6 is a schematic diagram of a linkage shaft according to the present invention;
Fig. 7 is a schematic view of a calibration nut according to the present invention.
Reference numerals and description of the components referred to in the drawings:
1. An outer housing; 11. a through groove; 12. a housing locating hole; 13. an external thread; 2. a lifting traction member; 21. a traction head; 3. an adjusting device; 31. calibrating the nut; 4. an eccentric wheel; 41. a first offset hole; 42. a second offset hole; 5. a linkage shaft; 51. a connecting shaft positioning hole; 6. a first positioning shaft; 7. and a second positioning shaft.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in the following detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a self-holding traction paying-off tool, which is shown in fig. 1-7, and comprises an outer shell 1, a hoisting traction piece 2 and an adjusting device 3, wherein the outer shell 1 is used for accommodating rotation of an eccentric wheel 4 and clamping of a submarine cable, so that the stressed position of the tool is positioned inside the outer shell 1. Wherein the outer housing 1 is a hollow cylinder. The hoisting traction member 2 is used for a structure connected with external equipment, so that the tool can be connected with the external equipment to play a role in connection. The adjusting device 3 plays an adjusting role and is used for adjusting the rotating position of the eccentric wheel 4 so as to clamp the submarine cable. The hoisting traction member 2 is arranged on the end part of the outer shell 1, and the hoisting traction member 2 and the end part can be connected through threads, so that the hoisting traction member 2 is convenient to install and detach. The adjusting device 3 is lockable and axially connected to the end of the outer housing 1 remote from the hoisting traction 2, which can be any connection, provided that the adjusting device 3 can be adjusted and locked at the other end of the outer housing 1. The hoisting traction member 2 and the adjusting device 3 are connected to the outer shell 1 in a non-fixed mode, so that the tool can be reused, and the construction cost is reduced. Preferably, the outer casing 1 is provided with external threads 13 at both ends, and the hoisting traction member 2 and the adjusting device 3 are screwed to the outer casing 1.
The periphery of the outer shell 1 is axially provided with eccentric wheel groups, and the eccentric wheel groups are arranged in three or more rows. When the eccentric wheel sets are three sets, the eccentric wheel sets are arranged in the outer shell 1 at 120 degrees; when the eccentric wheel sets are four sets, the eccentric wheel sets are arranged in the outer shell 1 at 90 degrees; when the eccentric wheels 4 are in a plurality of groups, the eccentric wheels are distributed on the outer shell 1 at equal angles. The eccentric wheel groups are arranged at equal angles, and the eccentric wheel groups are distributed in an array structure, so that the center positioning function can be achieved; meanwhile, in the traction process, the force value is always in the center of the submarine cable, so that the stress on the outer side of the submarine cable is uniform, and the service performance of the tool is improved. The eccentric wheel set is composed of two or more eccentric wheels 4, and the eccentric wheels 4 are in a circular cake shape; when the eccentric wheels 4 are multiple, the eccentric wheels 4 are axially arranged and positioned on the same straight line; wherein the distance between the eccentric wheels 4 can be arranged at equal intervals or at unequal intervals. The rough surface is arranged on the outer peripheral surface of the eccentric wheel 4, and the static friction force between the eccentric wheel 4 and the submarine cable can be increased by the rough surface, so that the submarine cable is not easy to slip after being stressed. The rough surface may be a thread or a helical tooth, as long as the static friction force between the eccentric 4 and the clamped object can be increased. By placing the eccentric wheel 4 inside the outer shell 1, the use frequency and reliability of the tool can be greatly improved, and the construction cost is reduced.
The periphery of the outer shell 1 is axially provided with the linkage shafts 5, the number of the linkage shafts 5 corresponds to that of the eccentric wheel groups, and the end parts of the linkage shafts 5 are close to the adjusting device 3.A connecting shaft 5 is connected to each eccentric wheel set, wherein the connecting shaft 5 is connected to the periphery of the outer shell 1 through each eccentric wheel 4 in the eccentric wheel set. The two sides of the outer peripheral edge of the eccentric wheel 4 are positioned in the connecting shaft 5, and the two sides of the eccentric wheel 4 are arranged in the two sides of the connecting shaft 5 and can rotate in the connecting shaft 5. The outer peripheral edge of the eccentric wheel 4 is provided with a first eccentric hole 41, and the eccentric wheel 4 is rotationally connected in the connecting shaft 5 through the first eccentric hole 41, i.e. the first eccentric hole 41 plays a role in connection. The eccentric wheel 4 is provided with a second eccentric hole 42 near the center position, and the eccentric wheel 4 is rotationally connected to the outer shell 1 through the second eccentric hole 42, so that the installation of the eccentric wheel 4 is completed, namely, the second eccentric hole 42 plays a role in connection. The first offset hole 41 and the second offset hole 42 cannot be located at the center position of the eccentric 4 and cannot be located on the same diameter therebetween. The adjusting device 3 can be installed and detached, when the adjusting device 3 is screwed down, the plane of the adjusting device 3 moves towards the end part of the connecting shaft 5 until the adjusting device 3 is in close contact with the end part of the connecting shaft 5, so that the connecting shaft 5 is orderly arranged, the positions of all eccentric wheels 4 are kept consistent, and the submarine cable is consistent with the outside Zhou Shouli; meanwhile, the linkage shaft 5 moves on the outer shell 1 towards the direction close to the hoisting traction piece 2, so that the eccentric wheel 4 is driven to rotate, the lengths of the surface distance axes of the eccentric wheel 4 are different, the length of the distance axes of the eccentric wheel 4 in the tool is longer, the contact stress between the eccentric wheel 4 and a submarine cable is further increased, the static friction force is promoted to be increased, and the tool is fixed with the submarine cable more tightly.
Through the design of eccentric wheel 4 and connecting axle 5, can realize that sea cable simple installation, along with the increase of pulling force in the pulling process simultaneously, the stress that acts on sea cable sheath surface also can correspondingly increase to guarantee can not the slippage.
Specifically, the periphery of the outer shell 1 is axially provided with through groove groups, the distribution form of the through groove groups is the same as that of the eccentric wheel groups, and the installation positions and the number of the through groove groups are corresponding. The channel group comprises two or more channels 11, the channels 11 providing a place for the eccentric 4 to be mounted. The through grooves 11 are axially arranged on the outer shell 1 and positioned on the same straight line, and the through grooves 11 are arranged at equal intervals or at unequal intervals. The number of the through grooves 11 can be calculated according to the size and the assembly of the eccentric wheel 4, and the specific number of the through grooves 11 can be set according to actual conditions. The through groove 11 can be in any shape, and can be used for placing the eccentric wheel 4 and facilitating the installation of the eccentric wheel 4.
Specifically, the through groove 11 is rectangular or rhombic or elliptical in shape, and the rectangular or rhombic or elliptical shape is easy to process and handle. The connecting shaft 5 is internally provided with rectangular structures or rhombic structures or elliptic structures which are arrayed, wherein the rectangular structures correspond to the rectangular through grooves 11, or the rhombic structures correspond to the rhombic through grooves 11, or the elliptic structures correspond to the elliptic through grooves 11. During the installation of the eccentric wheel 4, the eccentric wheel is connected in a rectangular structure or a diamond structure or an oval structure of the connecting shaft 5 through a first eccentric hole 41. Preferably, the linkage shaft 5 can be a cuboid, so that the processing is simple and the production cost is low; or the through groove 11 may be rectangular in shape. When the whole connecting shaft 5 is rectangular, the connecting shaft positioning holes 51 are uniformly distributed in the longitudinal direction and penetrate through the middle.
At least two pairs of connecting shaft positioning holes 51 are formed on two sides of the connecting shaft 5, one pair of connecting shaft positioning holes 51 is connected with one eccentric wheel 4, and the connecting shaft positioning holes 51 provide rotating points for the eccentric wheel 4 to rotate. The number of pairs of the connecting shaft positioning holes 51 corresponds to the number of the eccentric wheels 4. Wherein, the linkage shaft 5 is provided with a rectangular structure or a diamond structure or an oval structure, and the rectangular structure or the diamond structure or the oval structure is provided with linkage shaft positioning holes 51.
Specifically, the first eccentric hole 41 is located at the position of the outer peripheral edge of the eccentric 4. The first positioning shaft 6 passes through the first eccentric hole 41 and is fixedly connected to the eccentric wheel 4, wherein the first positioning shaft 6 has a cylindrical structure. The eccentric 4 is mounted in a pair of coupling positioning holes 51 by a first positioning shaft 6 such that the eccentric is rotatably coupled in the coupling positioning holes 51.
The outer shell 1 is provided with a shell positioning hole 12, and the shell positioning hole 12 provides a mounting point for the eccentric wheel 4 to be mounted. The shell positioning holes 12 are arranged in pairs and are positioned at the two sides of the through groove 11, and the shell positioning holes 12 are transversely formed. The number of the positioning holes 12 of the shell corresponds to the number of the eccentric wheels 4.
Specifically, the second offset hole 42 is located near the center. The second positioning shaft 7 passes through the second eccentric hole 42 and is fixedly connected to the eccentric wheel 4, wherein the second positioning shaft 7 has a cylindrical structure. The eccentric 4 is mounted in a pair of housing positioning holes 12 by a second positioning shaft 7, which is rotatably connected in the housing positioning holes 12.
The adjusting device 3 is a calibration nut 31, the calibration nut 31 is a hollow cylinder, and internal threads are arranged in the calibration nut 31. The outer periphery of the end part of the outer shell body 1, which is close to the adjusting device 3, is provided with an external thread 13, and the calibration nut 31 is in threaded connection with the external thread 13 on the outer shell body 1 through an internal thread, so that the calibration nut 31 can be conveniently screwed and unscrewed.
The hoisting traction member 2 is a traction head 21 or a shackle or a lifting hook or a steel wire rope or a butterfly-shaped ring, so that the tool has strong compatibility and can meet the requirements of different scenes. When the traction head 21 or the shackle or the lifting hook or the steel wire rope or the butterfly ring is connected with the outer shell 1, the specific connection mode is not limited as long as the connection matching between the traction head 21 or the shackle or the lifting hook or the steel wire rope or the butterfly ring and the end part of the outer shell 1 can be satisfied. Preferably, the traction head 21 is a cylinder with a smooth surface at one end, the interior is hollow, and the other end is a structure suitable for connecting lifting parts such as shackles.
Working principle: by tightening the calibration nut 31, the eccentric wheel 4 is contacted with the submarine cable, and a certain pretightening force exists; when the external device is used for starting traction, the tension of the submarine cable promotes the eccentric wheel 4 to rotate along with the increase of the tension, and the eccentric wheel 4 is characterized in that the shaft is not at the center of the circle, so that the lengths of the surfaces of the eccentric wheel 4 from the shaft are different during rotation. The main trend of the rotation of the eccentric wheel 4 in the tool is that the length of the distance shaft is longer, so that the contact stress between the eccentric wheel 4 and the submarine cable is further increased, the static friction force is promoted to be increased, and the greater the traction tension is, the tighter the tool is fixed with the submarine cable; simultaneously, the eccentric wheel 4 rotates and drives the connecting shaft 5 to axially move on the outer shell 1, and then the calibration nut 31 is screwed down again, so that tools cannot loosen in the construction process. The assembly process comprises the following steps: the eccentric 4 is mounted to the outer housing 1 using the second positioning shaft 7, the coupling shaft 5 is assembled with the eccentric 4 using the first positioning shaft 6, the directional consistency is noted, then the lifting traction member 2 is mounted to the end of the outer housing 1, and the calibration nut 31 is mounted to the other end of the outer housing 1, and this structural mounting is completed.
The invention also provides a use method of the self-holding traction paying-off tool, which comprises the following steps:
a) Firstly, the adjusting device 3 is loosened, so that the linkage shaft 5 can move freely; b) Installing a submarine cable: the submarine cable end is processed according to the construction requirements of a specific site, the hoisting traction piece 2 is firstly taken down, the submarine cable is penetrated from the end part of the outer shell 1, which is close to the installation position of the adjusting device 3, and the hoisting traction piece 2 is installed after the end part of the outer shell 1, which is close to the installation position of the hoisting traction piece 2, is processed; if the submarine cable does not need to be processed, the submarine cable is directly penetrated into the other end part of the outer shell 1 from the end part of the outer shell 1 near the installation position of the adjusting device 3; c) The eccentric wheel 4 is contacted with the submarine cable through the adjusting device 3, and a certain pretightening force exists; d) Tightening the adjusting device 3 to enable the eccentric wheel 4 to be in contact with the submarine cable, so that the center of the submarine cable is positioned, and a pre-tightening force is provided on the submarine cable sheath; e) The external equipment is used for providing initial tension, so that after the eccentric wheel 4 is further held tightly, the adjusting device 3 is screwed down again, and tools are prevented from loosening in the construction process; e) And (3) after the installation is finished, carrying out traction paying-off construction.
Meanwhile, in the submarine cable installation process, the submarine cable end can be independently placed in the end part of the outer shell 1 close to the hoisting traction device 2 and is in an unstressed state, so that the submarine cable end is protected from sealing, and water inflow of the end is avoided.
When the tool is used, the tool can be suitable for different cable laying works.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A self-hugging traction paying-off tool for clamping a submarine cable, characterized in that: the lifting traction piece (2) is installed on the end part of the outer shell (1), the adjusting device (3) can be adjusted in a locking mode and is axially connected to the end part of the outer shell (1) far away from the end part of the lifting traction piece (2), at least three rows of eccentric wheel sets are installed on the outer periphery of the outer shell (1) at equal angles in the axial direction, each eccentric wheel set comprises at least two eccentric wheels (4) and a rough surface is arranged on the outer periphery of each eccentric wheel (4), a connecting shaft (5) is axially arranged on the outer periphery of the outer shell (1), the number of the connecting shafts (5) corresponds to that of the eccentric wheel sets, the end part of each connecting shaft is close to the position of the adjusting device (3), a first eccentric hole (41) and a second eccentric hole (42) are formed in the outer periphery of the outer shell (4), the second eccentric wheel sets (42) are located at the positions of the outer periphery of the eccentric wheels (4) and are connected with the outer shell (4) in a rotating mode through the connecting shafts (4) in the axial direction, the adjusting device (3) is adjusted to move towards the end part of the connecting shaft (5) and prop against the end part of the connecting shaft (5) so that the eccentric wheel set is pressed on the periphery of the submarine cable;
at least two pairs of connecting shaft positioning holes (51) corresponding to the first eccentric holes are formed in two sides of the connecting shaft (5), and the eccentric wheel (4) is communicated with the connecting shaft positioning holes (51) through the first eccentric holes (41) and is rotationally connected to the connecting shaft (5);
the adjusting device (3) is a hollow cylinder, the inner wall of the adjusting device is provided with a calibration nut (31) with internal threads, the outer periphery of the end part of the outer shell (1) is provided with external threads (13), and the calibration nut (31) is in threaded connection with the external threads (13) on the outer shell (1) through the internal threads.
2. The self-cinching traction payout tool of claim 1, wherein: at least three rows of through groove groups corresponding to the number of the eccentric wheel groups are formed in the circumferential axial direction of the outer shell (1) at equal angles, each through groove group comprises at least two through grooves (11) corresponding to the number of the eccentric wheels (4), and the eccentric wheels (4) are rotationally connected to two side walls of the through grooves (11) on the outer periphery of the outer shell (1) through second eccentric holes (42).
3. A self-cinching traction payout tool as defined in claim 2, wherein: the through groove (11) is rectangular or diamond-shaped or oval, a rectangular structure or diamond-shaped structure or oval structure corresponding to the shape of the through groove (11) is arranged in the connecting shaft (5), and the eccentric wheel (4) is rotationally connected in the rectangular structure or diamond-shaped structure or oval structure of the connecting shaft (5) through the first eccentric hole (41).
4. A self-cinching traction payout tool as defined in any one of claims 1-3, wherein: the first eccentric hole (41) penetrates through and is fixedly connected with a first positioning shaft (6), and the eccentric wheel (4) is rotatably connected in the pair of connecting shaft positioning holes (51) through the first positioning shaft (6).
5. A self-cinching traction payout tool as defined in claim 2 or 3, wherein: a pair of shell positioning holes (12) corresponding to the second offset holes (42) are formed in the positions, located on the two sides of the through groove (11), of the outer shell body (1), and the eccentric wheel (4) is communicated with the shell positioning holes (12) through the second offset holes (42) and is rotatably connected to the outer shell body (1).
6. The self-cinching traction payout tool of claim 5, wherein: the second eccentric hole (42) penetrates through and is fixedly connected with a second positioning shaft (7), and the eccentric wheel (4) is rotatably connected into the housing positioning hole (12) through the second positioning shaft (7).
7. A self-cinching traction payout tool as defined in any one of claims 1-3, wherein: the hoisting traction piece (2) is a traction head (21) or a shackle or a lifting hook or a steel wire rope or a butterfly-shaped ring, and the traction head (21) or the shackle or the lifting hook or the steel wire rope or the butterfly-shaped ring is arranged on the end part of the outer shell (1).
8. A method of using the self-cinching traction payout tool as defined in any one of claims 1-3, comprising the steps of:
a) Firstly, loosening the adjusting device (3) to enable the connecting shaft (5) to move freely;
b) Installing the submarine cable, processing the submarine cable end according to construction requirements of a specific site, firstly taking down the hoisting traction member (2), penetrating the submarine cable from the end part of the outer shell (1) close to the installation position of the adjusting device (3), processing the end part of the outer shell (1) close to the installation position of the hoisting traction member (2), and then installing the hoisting traction member (2); if the submarine cable is not required to be processed, directly penetrating the submarine cable from the end of the outer shell (1) close to the installation position of the adjusting device (3) to the other end of the outer shell (1);
c) Tightening the adjusting device (3) so that the eccentric wheel (4) is in contact with the submarine cable, thereby realizing the center positioning of the submarine cable and providing a pre-holding force on the submarine cable sheath;
d) The initial tension is provided by using equipment, so that the eccentric wheel (4) is further held tightly and then the adjusting device (3) is screwed down again, and the tool is prevented from loosening in the construction process;
e) And (3) after the installation is finished, carrying out traction paying-off construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910958999.3A CN110571713B (en) | 2019-10-10 | 2019-10-10 | Self-holding traction paying-off tool and use method |
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| CN201910958999.3A CN110571713B (en) | 2019-10-10 | 2019-10-10 | Self-holding traction paying-off tool and use method |
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| CN110571713B true CN110571713B (en) | 2024-07-30 |
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| CN112735683B (en) * | 2021-01-13 | 2022-10-28 | 白银有色长通电线电缆有限责任公司 | Power-on traction device for cable core production |
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| CN210608315U (en) * | 2019-10-10 | 2020-05-22 | 中天海洋系统有限公司 | From holding tightly pull unwrapping wire instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1334240A1 (en) * | 1983-07-22 | 1987-08-30 | С.Л.Охрименко | Device for pulling cable articles through tubes |
| CN2279719Y (en) * | 1996-12-06 | 1998-04-22 | 冯骐 | Eccentric multiwheel draw line pliers |
| CN106159811B (en) * | 2016-08-29 | 2018-01-05 | 中天海洋系统有限公司 | A kind of joint type extra large cable traction anchoring integrated device of pre-assembled formula |
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