CN104300442B - A kind of sea cable drawing head - Google Patents

A kind of sea cable drawing head Download PDF

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Publication number
CN104300442B
CN104300442B CN201410611230.1A CN201410611230A CN104300442B CN 104300442 B CN104300442 B CN 104300442B CN 201410611230 A CN201410611230 A CN 201410611230A CN 104300442 B CN104300442 B CN 104300442B
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CN
China
Prior art keywords
tapered sleeve
cable
sea
head
centre bore
Prior art date
Application number
CN201410611230.1A
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Chinese (zh)
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CN104300442A (en
Inventor
耿敏敏
郭朝阳
蔡炳余
潘盼
张建民
薛建林
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中天科技海缆有限公司
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Application filed by 中天科技海缆有限公司 filed Critical 中天科技海缆有限公司
Priority to CN201410611230.1A priority Critical patent/CN104300442B/en
Publication of CN104300442A publication Critical patent/CN104300442A/en
Application granted granted Critical
Publication of CN104300442B publication Critical patent/CN104300442B/en

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Abstract

The invention discloses a kind of sea cable drawing head, including front tapered sleeve and rear tapered sleeve, front tapered sleeve and rear tapered sleeve are pyramidal structure, in rear tapered sleeve, center is provided with centre bore, running through in centre bore and have extra large cable, centre bore outer end adaptation connects has locking nut, rear tapered sleeve end to be additionally provided with installation base, armouring wire in the cable of sea extends to installation base surface and uses screw rod to be fixed, and is additionally provided with inner cone between armouring wire and centre bore;Front tapered sleeve inwall is provided with some steps, it has been threaded connection pallet on one of them step, the end face adaptation of pallet connects chuck, chuck adaptation connects the one end having pull bar, the other end of pull bar extends to the outside of described front tapered sleeve, and the end that pull bar extends to outside described front tapered sleeve is provided with pulling eye.The present invention can lock along with the increase of tractive force during sea cable lays, and improves the traction upper limit;Three seals mechanism design simultaneously, isolation seawater completely enters drawing head inner passage, it is achieved the excellent sealing in cable end portion, sea.

Description

A kind of sea cable drawing head
Technical field
The present invention relates to a kind of be applied to during submarine cable operation lays pull draw-gear, particularly to one be applicable to sea cable through sea pipe upper mounting plate drawing head device.
Background technology
Sea cable is as transmission energy and the important medium of information, at sea oil platform system uses in a large number, sea cable is when laying, during the pipe upper mounting plate of sea, need, in cable end portion, sea, one pulling draw-gear is installed, for fixed traction steel wire rope, owing to podium level is high, the weight of cable is big, if the head traction device of sea cable and cable are fixed the tightest, it is easily caused sea cable to slip, cable head needs to carry out encapsulation process simultaneously, prevent cable from intaking, and sea cable can reverse in a stretched state, if fruit does not has back-twist device, cable can twist off, these problems all can cause serious economic loss.Traction net is the most generally used to add back twist device as cable end portion, sea draw-gear for solving these problems, on cable end portion, sea set, PVC pyrocondensation cap carries out encapsulation process simultaneously, but Traction networks is enclosed within work progress and easily weares and teares, security reliability is relatively low, and being not suitable for the situation that sea cable diameter is too small or excessive, the cap intensity of PVC pyrocondensation simultaneously is low, the most easily weares and teares, long-time immersion is easily leaked in the seawater, it is therefore desirable to cable end portion, a kind of sea reliably draw-gear.
Summary of the invention
Goal of the invention: the invention aims to solve deficiency of the prior art, it is provided that a kind of reliability is high, water sealing property is good and simple in construction, extra large cable drawing head easy for installation.
Technical scheme: a kind of sea of the present invention cable drawing head, including front tapered sleeve and rear tapered sleeve, described front tapered sleeve and rear tapered sleeve are threaded connection and are fixed by rotation stopping screw, described front tapered sleeve and rear tapered sleeve are pyramidal structure, in described rear tapered sleeve, center is provided with centre bore, run through in described centre bore and have extra large cable, described centre bore outer end adaptation connects locking nut, described rear tapered sleeve end is additionally provided with installation base, armouring wire in the cable of described sea extends to described installation base surface and uses screw rod to be fixed, it is additionally provided with inner cone between described armouring wire and described centre bore, described inner cone outer surface is pyramidal structure, inside arranges centre bore, the inner surface of the reverse taper hole that described inner cone conical outer surface is built-in with installation base cooperates and presses armouring wire;Described front tapered sleeve inwall is provided with some steps, it has been threaded connection pallet on one of them step, the end face adaptation of described pallet connects chuck, described chuck adaptation connects the one end of the pull bar having rotary movable, the other end of described pull bar extends to the outside of described front tapered sleeve, and the end that described pull bar extends to outside described front tapered sleeve is provided with pulling eye.
As optimization, between described locking nut and described centre bore, it is provided with rubber ring.
As optimization, the outer surface hoop of described front tapered sleeve and rear tapered sleeve is uniformly provided with auxiliary pilot hole.
As optimization, between described screw rod and described armouring wire, it is additionally provided with pressing plate.
As optimization, described installation base surface, pallet are equipped with rectangular recess with chuck contact surface, are provided with O in described rectangular recess.
As optimization, the conical surface of described front tapered sleeve is provided with screwed hole, is conducting to the surface of described chuck, be provided with plug in described screwed hole inside described screwed hole.
Beneficial effect: interior tapered armouring wire locking mechanism is designed by the present invention, can lock along with the increase of tractive force during cable lays, improve the traction upper limit, three seals mechanism design simultaneously, isolation seawater completely enters drawing head inner passage, realize the excellent sealing in cable end portion, sea, the back twist function carried, prevent cable from playing torsion in work progress.
Accompanying drawing explanation
Fig. 1 is the structural front view of the present invention.
Fig. 2 is the structure sectional view of the present invention.
Detailed description of the invention
A kind of sea cable drawing head as depicted in figs. 1 and 2, including rear tapered sleeve 1, front tapered sleeve 2, pull bar 3, pressing plate 4, inner cone 5, pallet 6, locking nut 7, rubber ring 8, the first O 9, the second O 10, plug 11, screw rod 12, rotation stopping screw 13, sea cable 14, armouring wire 15.Rear tapered sleeve 1 trailing exterior surface is pyramidal structure, the built-in centre bore of end 16, is used for wearing cable 14, and centre bore 16 inwall inner segment is smooth and arranges ring-shaped step 17, and ring-shaped step 17 is used for putting to rubber ring 8, and the outer section of centre bore 16 inwall arranges internal thread.Rear tapered sleeve 1 arranges installation base 18, the built-in reverse taper hole of installation base 18 19, installation base 18 end face annular spread screwed hole 20, periphery, installation base 18 end-face helical hole 20 is provided with rectangular channel 21, installing the first O 9 in rectangular channel 21, installation base 18 outer surface arranges external screw thread, and hoop is uniformly arranged screwed hole 22, installation base 18 root arranges step 23, and step 23 outer surface hoop is uniformly arranged auxiliary pilot hole 24.
Front tapered sleeve 2 is internal arranges 5 road stepped holes, stepped hole 1 inner surface arranges internal thread, on hole wall, annular is uniformly distributed stepped hole 26, front tapered sleeve 2 coordinates realization to be connected by stepped hole 1 inner surface internal thread with rear tapered sleeve 1 installation base 18 outer surface external screw thread, and it is fixing to utilize rotation stopping screw 13 only to fill, stepped hole 3 27 inner surface arranges internal thread, stepped hole 3 27 interior step 28 is provided with rectangular recess 29, rectangular recess 29 installs the second O 10, front tapered sleeve 2 outer surface annular is evenly arranged with auxiliary pilot hole 30, front tapered sleeve 2 head is pyramidal structure, screwed hole 31 it is provided with on the conical surface, screwed hole 31 turns on front tapered sleeve 2 internal stepped bore 4 32, screwed hole 32 is installed plug 11.
Pull bar 3 afterbody arranges chuck 33, and chuck 33 can be stuck in front tapered sleeve 2 internal stepped bore 4 32, and pull bar 3 head is provided with pulling eye 39.Inner cone 5 outer surface is pyramidal structure, inside arranges centre bore, and inner cone 5 conical outer surface and rear tapered sleeve 1 installation base 18 reverse taper hole 19 inner surface cooperate and press armouring wire 15, and pressing plate 4 surface annular is uniformly distributed through hole 34, utilizing screw rod 12 locking pressure plate 4, pressing plate 4 compresses inner cone 5.Pallet 6 outer cylinder 35 arranges external screw thread, this external screw thread is installed with front tapered sleeve 2 internal stepped bore 3 27 inner surface screw-internal thread fit, pallet 6 outer face 36 cooperates with front tapered sleeve 2 internal stepped bore 3 27 interior step 28, pressing the second O 10, it is achieved seal, locking nut 7 is internal arranges centre bore 37, outer surface arranges external screw thread, head is hexagonal structure, locking nut 7 by outer surface external screw thread with after most overlap 1 distal center hole 16 inwall internal thread realization and be connected, press rubber ring 8.
Operation principle and the installation method of this structure are as follows:
First cable 14 head oversheath is removed, expose one section of armouring wire 15, locking nut 7, rubber ring 8, rear tapered sleeve 1 is set on cable successively, armouring wire 15 is broken into two with one's hands along reverse taper hole 19 inner surface of rear tapered sleeve 1 installation base 18 and is uniformly distributed, inner cone 5 is installed again, reverse taper hole 19 inner surface of inner cone 5 conical outer surface and rear tapered sleeve 1 installation base 18 cooperates and compresses armouring wire 15, pressing plate 4 installed below, and utilizing bolt 12 locking pressure plate 4, pressing plate 4 compresses steel wire further, thus realizes fixation with steel wire.Installing rubber ring 8, rubber ring 8 is filled in rear tapered sleeve 1 distal center hole 16 innermost end, installs locking nut 7, locking nut 7 extrudes rubber ring 8, makes rubber ring 8 expand, thus realizes the sealing between cable 14 and rear tapered sleeve 1.
Secondly drawing head first half is assembled, first pull bar 3 is filled in rear tapered sleeve 2 internal, pull bar 3 afterbody chuck 33 is installed to front tapered sleeve 2 internal stepped bore 32 position, second O 10 is installed in rectangular recess 29, pallet 6 is installed again, pallet 6 outer face 36 cooperates with front tapered sleeve 2 internal stepped bore 3 27 interior step 28, press the second O 10, realize sealing, the assembling of drawing head first half is complete, first O 9 is installed below in rectangular recess 21, again the drawing head first half assembled is realized being connected outside rear tapered sleeve 1 installation base 18 by rear tapered sleeve 2 internal stepped bore 1 inner surface internal thread, and utilize rotation stopping screw 13, only fill fixing.
Rear tapered sleeve 1 installation base 18 end face cooperates with front tapered sleeve internal stepped bore 1 interior step 38, extrudes the first O and realizes sealing.Drawing head integral installation is complete, injects lubricant grease finally by screwed hole 31 tapered sleeve 2 stepped hole 4 32 forward, reduces the friction between pull bar 3 and front tapered sleeve 2, it is simple to pull bar 3 rotates, and easily realizes the cable 14 back twist during laying.
Interior tapered armouring wire locking mechanism is designed by the present invention, can lock along with the increase of tractive force during cable lays, improve the traction upper limit, three seals mechanism design simultaneously, isolation seawater completely enters drawing head inner passage, realize the excellent sealing in cable end portion, sea, the back twist function carried, prevent cable from playing torsion in work progress.

Claims (6)

1. an extra large cable drawing head, including front tapered sleeve and rear tapered sleeve, described front tapered sleeve and rear tapered sleeve are threaded connection and are fixed by rotation stopping screw, it is characterized in that: described front tapered sleeve and rear tapered sleeve are pyramidal structure, in described rear tapered sleeve, center is provided with centre bore, run through in described centre bore and have extra large cable, described centre bore outer end adaptation connects locking nut, described rear tapered sleeve end is additionally provided with installation base, armouring wire in the cable of described sea extends to described installation base surface and uses screw rod to be fixed, it is additionally provided with inner cone between described armouring wire and described centre bore, described inner cone outer surface is pyramidal structure, inside arranges centre bore, the inner surface of the reverse taper hole that described inner cone conical outer surface is built-in with installation base cooperates and presses armouring wire;Described front tapered sleeve inwall is provided with some steps, it has been threaded connection pallet on one of them step, the end face adaptation of described pallet connects chuck, described chuck adaptation connects the one end of the pull bar having rotary movable, the other end of described pull bar extends to the outside of described front tapered sleeve, and the end that described pull bar extends to outside described front tapered sleeve is provided with pulling eye.
A kind of sea the most according to claim 1 cable drawing head, it is characterised in that: it is provided with rubber ring between described locking nut and described centre bore.
A kind of sea the most according to claim 1 cable drawing head, it is characterised in that: the outer surface hoop of described front tapered sleeve and rear tapered sleeve is uniformly provided with auxiliary pilot hole.
A kind of sea the most according to claim 1 cable drawing head, it is characterised in that: it is additionally provided with pressing plate between described screw rod and described armouring wire.
A kind of sea the most according to claim 1 cable drawing head, it is characterised in that: described installation base surface, pallet are equipped with rectangular recess with chuck contact surface, are provided with O in described rectangular recess.
A kind of sea the most according to claim 1 cable drawing head, it is characterised in that: the conical surface of described front tapered sleeve is provided with screwed hole, is conducting to the surface of described chuck, be provided with plug in described screwed hole inside described screwed hole.
CN201410611230.1A 2014-11-04 2014-11-04 A kind of sea cable drawing head CN104300442B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410611230.1A CN104300442B (en) 2014-11-04 2014-11-04 A kind of sea cable drawing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410611230.1A CN104300442B (en) 2014-11-04 2014-11-04 A kind of sea cable drawing head

Publications (2)

Publication Number Publication Date
CN104300442A CN104300442A (en) 2015-01-21
CN104300442B true CN104300442B (en) 2016-08-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3402023A1 (en) * 2017-05-08 2018-11-14 NKT HV Cables AB Pull-in head for a high voltage cable

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811321B (en) * 2016-05-13 2017-09-01 中天科技海缆有限公司 A kind of dynamic complex cable pulling protects head
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
CN108063399A (en) * 2017-11-17 2018-05-22 广州供电局有限公司 Draft gear applied to cable laying

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3402023A1 (en) * 2017-05-08 2018-11-14 NKT HV Cables AB Pull-in head for a high voltage cable

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Publication number Publication date
CN104300442A (en) 2015-01-21

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C06 Publication
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Effective date of registration: 20190425

Address after: 226010 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu

Co-patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu

Patentee after: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd.

Address before: 226000 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu

Patentee before: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd.

Effective date of registration: 20190425

Address after: 226010 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu

Co-patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu

Patentee after: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd.

Address before: 226000 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu

Patentee before: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200827

Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China

Patentee after: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd.

Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China

Co-patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd.

Patentee before: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China

Patentee after: Zhongtian Technology submarine cable Co., Ltd

Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China

Patentee before: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd.