CN105417418B - A kind of reel and its hoisting mechanism - Google Patents

A kind of reel and its hoisting mechanism Download PDF

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Publication number
CN105417418B
CN105417418B CN201510808540.7A CN201510808540A CN105417418B CN 105417418 B CN105417418 B CN 105417418B CN 201510808540 A CN201510808540 A CN 201510808540A CN 105417418 B CN105417418 B CN 105417418B
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CN
China
Prior art keywords
reel
rope
winding jib
rope winding
steel wire
Prior art date
Application number
CN201510808540.7A
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Chinese (zh)
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CN105417418A (en
Inventor
刘发展
朱晓冬
杨阳
陈云节
刘郴
陈离
刘云
Original Assignee
武汉船用机械有限责任公司
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Priority to CN201510808540.7A priority Critical patent/CN105417418B/en
Publication of CN105417418A publication Critical patent/CN105417418A/en
Application granted granted Critical
Publication of CN105417418B publication Critical patent/CN105417418B/en

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Abstract

The invention discloses a kind of reel and its hoisting mechanism, belong to crane field.The reel includes two sections of one section of coaxially arranged reel and reel, one section of the reel is equal to 2 × pitch t/ π with described two sections of pitch t and direction of rotation all same for going up grooving of reel, the difference of the outer diameter D 1 of one section of the reel and the outer diameter D 2 of two sections of the reel.Reel provided in an embodiment of the present invention, the reel is used in the hoisting mechanism of double-rope right angle rope winding jib, reel lay winding wire ropes each rotation, with distance of the rope winding jib that it coordinates along one pitch of spool axis direction walking, then wherein steel cable is pulled up the length of a pitch, another steel cable is released the length of a pitch, the progressive error of two steel wire ropes is 2 × pitch, the present invention compensates the progressive error of double-rope right angle rope winding jib two steel wire ropes during row's rope by setting the external diameter difference of two sections of one section of reel and reel, so as to the row's of solve thing problems, such as rope disorder cable.

Description

A kind of reel and its hoisting mechanism
Technical field
The present invention relates to crane field, more particularly to a kind of reel and its hoisting mechanism.
Background technology
The raising of hoisting machinery is loaded and mainly realized by hoisting mechanism Wound steel rope, wherein, reel is elevator again The main member of mechanism, it is used to store and Wound steel rope.Sometimes by the way of hoisting mechanism need to arrange rope using double-rope right angle To meet the requirement of reel rope angle.
The existing hoisting mechanism that rope is arranged using double-rope right angle is included:Reel and rope winding jib, because reel winds two The diameter at the position of steel wire rope is identical, so the coiling length of two on reel piece steel wire rope is identical, so, in row's rope process In, because rope winding jib can be along the axial movement of reel, so in the presence of rope winding jib, wherein steel cable can be pulled up, And another steel cable can be then released, so as to cause two steel wire ropes to run simultaneously, there is the problem of row's rope disorder cable, this For there is the hoisting machinery synchronously required absolutely not to allow.
The content of the invention
In order to solve the nonsynchronous problem of steel wire rope of the hoisting mechanism of double-rope right angle row rope of the prior art, this hair Bright embodiment provides a kind of reel and its hoisting mechanism.The technical scheme is as follows:
On the one hand, the embodiments of the invention provide a kind of reel, the reel to include one section coaxially arranged of reel and volume Two sections of cylinder, one section of the reel and described two sections of pitch t and direction of rotation all same for going up grooving of reel, one section of the reel The difference of outer diameter D 1 and the outer diameter D 2 of two sections of the reel is equal to 2 × pitch t/ π.
On the other hand, the embodiments of the invention provide a kind of hoisting mechanism, the hoisting mechanism to include:Reel, spool shaft, Reel drive component, rope winding jib, rope winding jib drive component, rope winding jib transmission component, rope winding jib walking guide rail, support, the first steel Cord and the second steel wire rope, the reel include two sections of one section of coaxially arranged reel and reel, one section of the reel with it is described The pitch t and direction of rotation all same of the upper grooving of two sections of reel, the outer diameter D 1 of one section of the reel are outer with two sections of the reel Footpath D2 difference is equal to 2 × pitch t/ π, and in the spool shaft, the spool shaft is fixed on the drum sheath by bearing On the support, one end of the spool shaft is connected with the reel drive component, the other end of the spool shaft and institute The input shaft for stating rope winding jib drive component is fixed on the bracket by roller chain link, the rope winding jib walking guide rail, and The rope winding jib walking guide rail arranges that the rope winding jib is slideably positioned in the rope winding jib parallel to the central axis of the reel In walking guide rail, the rope winding jib drive component is connected by the rope winding jib transmission component and the rope winding jib, described The first guide wheel and the second guide wheel, one end of first steel wire rope has been arranged side by side along the axial direction of the reel on rope winding jib It is fixed on one section of the reel, is wrapped in the middle part of first steel wire rope on one section of the reel, first steel wire rope The other end vertically enter restrict and be wound on first guide wheel, one end of second steel wire rope is fixed on the reel On two sections, the middle part of second steel wire rope is wrapped on two sections of the reel according to the winding direction of first steel wire rope, The other end vertically rope stretching of second steel wire rope is simultaneously wound on second guide wheel.
Specifically, distance L1=(D1+D2)/4 between the split of the central axis of the reel and first guide wheel.
Specifically, at least two walkings that can be slided in the rope winding jib walking guide rail are installed on the rope winding jib Wheel, the rope winding jib are slided by the road wheel in the rope winding jib walking guide rail.
Specifically, the number of turns of first wirerope-winding on one section of the reel is equal to second wirerope-winding The number of turns on two sections of the reel.
Further, first wirerope-winding, 3~20 circle on one section of the reel.
Specifically, the both ends of the reel are respectively fixed with baffle plate.
Specifically, the hoisting mechanism also includes:Cord-pressing block and screw, the cord-pressing block is by the screw by described One steel wire rope and second steel wire rope are pressed respectively to be fixed on one section of the reel and two sections of the reel.
Further, the cord-pressing block and the screw are multiple that multiple cord-pressing blocks are respectively along the reel one The circumferencial direction of section and two sections of the reel is evenly arranged.
Specifically, the rope winding jib drive component includes steering box, steering box driving wheel, steering box driven pulley and steering box Chain, the input shaft of the steering box are connected with the spool shaft, and the input shaft of the steering box and the spool shaft Parallel arrangement, the output shaft of the input shaft of the steering box and the steering box is in the same plane and is mutually perpendicular to, described Steering box driving wheel is arranged on the output shaft of the steering box, and the steering box driving wheel passes through the steering box chain and institute State the drive connection of steering box driven pulley, the rope winding jib transmission component includes driving wheel, driven pulley and chain, the driving wheel with The driven pulley is arranged in the both ends of the walking distance of the rope winding jib, and the both ends of the chain are separately fixed at the row Restrict the both ends of device, be respectively wound around on the driving wheel and the driven pulley in the middle part of the chain, and the steering box is driven Wheel is respectively and fixedly installed in same rotating shaft with the driving wheel.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is:Reel provided in an embodiment of the present invention, should Reel is used in the hoisting mechanism of double-rope right angle rope winding jib, reel lay winding wire ropes each rotation, the rope winding jib coordinated with it The distance for a pitch of being walked along spool axis direction, then wherein steel cable is pulled up the length of a pitch, Ling Yigen Steel wire rope is released the length of a pitch, and the progressive error of two steel wire ropes is 2 × pitch, and the present invention is by setting one section of reel The progressive error of double-rope right angle rope winding jib two steel wire ropes during row restricts is compensated with the external diameter difference of two sections of reel, so as to have Imitate the row's of solving the problems, such as rope disorder cable.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the structural representation for the reel that the embodiment of the present invention one provides;
Fig. 2 is the main structure diagram for the hoisting mechanism that the embodiment of the present invention two provides;
Fig. 3 is the overlooking the structure diagram for the hoisting mechanism that the embodiment of the present invention two provides;
Fig. 4 is the partial structural diagram for the hoisting mechanism that the embodiment of the present invention two provides;
Fig. 5 is the left side view for Fig. 4 that the embodiment of the present invention two provides.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.
Embodiment one
The embodiments of the invention provide a kind of reel, suitable for the reel of double-rope right angle rope winding jib, as shown in figure 1, should Reel includes coaxially arranged two section 2 of one section 1 of reel and reel, the pitch t of grooving and rotation on two section 2 of one section 1 of reel and reel Turn direction all same, the difference for the outer diameter D 2 that two section 2 of the outer diameter D 1 that one section 1 of reel and reel is equal to 2 × pitch t/ π, i.e. D1-D2 =2 × pitch t/ π.
Reel provided in an embodiment of the present invention, the reel are used in the hoisting mechanism of double-rope right angle rope winding jib, and reel twines Around steel wire rope each rotation, the rope winding jib coordinated with it can walk the distance of a pitch along spool axis direction, then and wherein one Root steel wire rope is pulled up the length of a pitch, and another steel cable is released the length of a pitch, the row of two steel wire ropes Path difference is 2 × pitch, and the present invention is rolled up by setting the external diameter difference of two sections of one section of reel and reel to compensate double-rope right angle row's rope The progressive error of mechanism two steel wire ropes during row restricts is raised, so as to the row's of solve thing problems, such as rope disorder cable.
Embodiment two
The embodiments of the invention provide a kind of hoisting mechanism, suitable for the hoisting mechanism of double-rope right angle rope winding jib, such as schemes Shown in 2- Fig. 4, the hoisting mechanism includes reel, spool shaft 3, reel drive component 11, rope winding jib 4, the transmission group of rope winding jib first Part 5, the second transmission component of rope winding jib 6, rope winding jib walking guide rail 7, support 8, the first steel wire rope 9 and the second steel wire rope 10, reel Including coaxially arranged two section 2 of one section 1 of reel and reel, the pitch of grooving and direction of rotation on two section 2 of one section 1 of reel and reel All same, the difference for the outer diameter D 2 that two section 2 of the outer diameter D 1 that one section 1 of reel and reel are equal to 2 × pitch/π, and drum sheath is mounted in reel On axle 3, spool shaft 3 is fixed on support 8 by bearing 13, and one end and the reel drive component 11 of spool shaft 3 are connected, volume The other end of cylinder axle 3 is connected with the input shaft of the first transmission component of rope winding jib 5, and rope winding jib walking guide rail 7 is fixed on support 8 On, and rope winding jib walking guide rail 7 arranges that rope winding jib 4 is slideably positioned in rope winding jib walking guide rail 7 parallel to the central axis of reel On, the first transmission component of rope winding jib 5 is connected by the second transmission component of rope winding jib 6 with rope winding jib 4, along volume on rope winding jib 4 The first guide wheel 4a and the second guide wheel 4b has been arranged side by side in the axial direction of cylinder, and one end of the first steel wire rope 9 is fixed on reel one section 1 On, the middle part of the first steel wire rope 9 is wrapped on one section 1 of reel, and the other end of the first steel wire rope 9 vertically enters to restrict and be wound on On first guide wheel 4a, one end of the second steel wire rope 10 is fixed on two section 2 of reel, and the middle part of the second steel wire rope 10 is according to the first steel The winding direction of cord 9 is wrapped on two section 2 of reel, and the other end vertically rope stretching of the second steel wire rope 10 is simultaneously wound on second On guide wheel 4b.Wherein, spool shaft 3 can be fixed on support 8 by two bearings 13, and specifically, the both ends of spool shaft 3 can be with Bearing (not shown) is installed respectively, spool shaft 3 is arranged on bearing 13 by bearing and is fixed on support 8.The one of spool shaft 3 End is welded with reel, and the other end of spool shaft 3 can be connected with the input shaft of the first transmission component of rope winding jib 5, be driven During, spool shaft 3 drive connection driven by reel drive component 11, spool shaft 3 but with the first transmission component of rope winding jib 5 Input shaft is connected so that the input shaft of the first transmission component of rope winding jib 5 can follow spool shaft 3 to rotate, the rope winding jib the Power can be transferred to output shaft by the input shaft of one transmission component 5, and in the present embodiment, the first transmission component of rope winding jib 5 can Think steering box, the steering box power direction of the input shaft of the first transmission component of rope winding jib 5 can be rotated by 90 ° after by rope winding jib The output shaft output of first transmission component 5.
Specifically, as shown in figure 5, distance L1=(D1+ between the central axis of reel and the first guide wheel 4a split D2)/4.This enable the vertical tangent line of the first steel wire rope 9 and the second steel wire rope 10 along reel respectively enter the first guide wheel 4a and Second guide wheel 4b, this is advantageous to reduce the radial component suffered by rope winding jib 4, so as to improve stationarity when rope winding jib 4 is run, and Reduce running in the first guide wheel 4a and the second guide wheel 4b because bear radial load and caused by wear.
Specifically, as shown in figure 3, rope winding jib 4 passes through wheel shaft including two side plates 4c, the first guide wheel 4a and the second guide wheel 4b It is clipped between two side plate 4c.
Specifically, at least two road wheels 14 that can be slided in rope winding jib walking guide rail 7 are installed on rope winding jib 4, arranged Rope device 4 can be walked by road wheel 14 in rope winding jib walking guide rail 7, wherein, rope winding jib walking guide rail 7 can be two, point Two side plate 4c both sides are not arranged in, road wheel 14 can be four, and two road wheels 14 are installed respectively on each side plate 4c, Road wheel 14 is located at corresponding side plate 4c outside, and the road wheel 14 can be such that rope winding jib 4 is slided along rope winding jib walking guide rail 7, and Four road wheels 14 can make the operation of rope winding jib 4 more stable.
Specifically, the number of turns that the first steel wire rope 9 is wrapped on one section 1 of reel is wrapped in reel two equal to the second steel wire rope 10 The number of turns in section 2.Meanwhile the length of two section 2 of the length of one section 1 of reel and reel is identical.The number of turns can ensure the first steel wire The steel wire rope 10 of rope 9 and second is firm to be wrapped on two section 2 of one section 1 of reel and reel.
Further, the first steel wire rope 9 is wrapped in 3~20 circle on one section 1 of reel.
Specifically, the both ends of reel are respectively fixed with baffle plate 15.The baffle plate 15 can prevent the first steel wire rope 9 and the second steel Cord 10 skids off reel during winding.
Specifically, the hoisting mechanism can also include:Cord-pressing block 16 and screw 17, cord-pressing block 16 is by screw 17 by first The steel wire rope 10 of steel wire rope 9 and second is pressed respectively to be fixed on two section 2 of one section 1 of reel and reel.The cord-pressing block 16 can be fixed First steel wire rope 9 and the second steel wire rope 10, prevent the first steel wire rope 9 and the second steel wire rope 10 from shifting.
Specifically, cord-pressing block 16 and screw 17 are multiple that multiple cord-pressing blocks 16 are respectively along two sections of one section 1 of reel and reel 2 circumferencial direction is evenly arranged.
Specifically, the first transmission component of rope winding jib 5 includes steering box 5a, steering box driving wheel 5b, steering box driven pulley 5c With steering box chain (not shown), steering box 5a input shaft and spool shaft 3 are connected, and steering box 5a input shaft with Spool shaft 3 is arranged in parallel, and steering box 5a input shaft is in the same plane with steering box 5a output shaft and is mutually perpendicular to, and turns To case driving wheel 5b on steering box 5a output shaft, steering box driving wheel 5b is driven by steering box chain and steering box 5c drive connections are taken turns, the second transmission component of rope winding jib 6 includes driving wheel 19, driven pulley 18 and chain 6a, driving wheel 19 and driven Wheel 18 is arranged in the both ends of the walking distance of rope winding jib 4, and chain 6a both ends are separately fixed at the both ends of rope winding jib 4, chain It is respectively wound around in the middle part of bar 6a on driving wheel 19 and driven pulley 18, and steering box driven pulley 5c is fixed and pacified respectively with driving wheel 19 In same rotating shaft.Wherein, the first transmission component of rope winding jib 5 is controlled by reel drive component 11, and with reel drive component 11 together move, meanwhile, the first transmission component of rope winding jib 5 drives the second transmission component of rope winding jib 6 to move, and makes the edge of rope winding jib 4 The movement of the direction of rope winding jib walking guide rail 7, this causes rope winding jib 4 to be driven with reel using the drive component of identical power, makes Rope winding jib 4 can follow reel to be synchronized with the movement all the time, so as to the further row of avoiding restrict disorder cable the problem of.
Specifically, reel drive component 11 can include motor, brake and reductor, and motor is by brake with slowing down Machine connects, wherein, reductor may be mounted at the inside of reel.
Specifically, the first drive 12 is installed on the other end of spool shaft 3, is provided with steering box 5a input shaft Two drives 21, the first drive 20 and the second drive 21 are connected by roller chain (not shown).Passed by first The drive 21 of driving wheel 12 and second realizes the drive connection of spool shaft 3 and the first transmission component of rope winding jib 5.
Hoisting mechanism provided in an embodiment of the present invention, including reel and rope winding jib, reel and rope winding jib can be run simultaneously, volume Cylinder lay winding wire ropes each rotation, with the rope winding jib that it coordinates along spool axis direction walk a pitch distance, then wherein Steel cable is pulled up the length of a pitch, and another steel cable is released the length of a pitch, two steel wire ropes Progressive error is 2 × pitch, and the present invention compensates double-rope right angle row's rope by setting the external diameter difference of two sections of one section of reel and reel The progressive error of device two steel wire ropes during row restricts, so as to the row's of solve thing problems, such as rope disorder cable.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (9)

1. a kind of hoisting mechanism, it is characterised in that the hoisting mechanism includes:Reel, spool shaft (3), reel drive component (11), rope winding jib (4), rope winding jib drive component (5), rope winding jib transmission component (6), rope winding jib walking guide rail (7), support (8), First steel wire rope (9) and the second steel wire rope (10),
The reel includes coaxially arranged reel one section (1) and reel two sections (2), one section of the reel (1) and the reel The pitch t and direction of rotation all same of grooving on two sections (2), the outer diameter D 1 of the reel one section (1) and the reel two sections (2) The difference of outer diameter D 2 be equal to 2 × pitch t/ π, in the spool shaft (3), the spool shaft (3) passes through the drum sheath Bearing (13) is fixed on the support (8), and one end of the spool shaft (3) connects with the reel drive component (11) transmission Connect, the reel each rotation, the distance of axis direction walking one pitch of the rope winding jib (4) along the reel is described The other end of spool shaft (3) and the input shaft of the rope winding jib drive component (5) are connected, the rope winding jib walking guide rail (7) it is fixed on the support (8), and the rope winding jib walking guide rail (7) is arranged parallel to the central axis of the reel, institute State rope winding jib (4) to be slideably positioned on the rope winding jib walking guide rail (7), the rope winding jib drive component (5) passes through the row Device transmission component (6) of restricting is connected with the rope winding jib (4), on the rope winding jib (4) along the reel axial direction simultaneously Row is provided with the first guide wheel (4a) and the second guide wheel (4b), and one end of first steel wire rope (9) is fixed on one section of the reel (1) on, be wrapped in the middle part of first steel wire rope (9) on one section of the reel (1), first steel wire rope (9) it is another End vertically enters to restrict and be wound on first guide wheel (4a), and one end of second steel wire rope (10) is fixed on the volume On cylinder two sections (2), the middle part of second steel wire rope (10) is wrapped in described according to the winding direction of first steel wire rope (9) On two sections of reel (2), the other end vertically rope stretching of second steel wire rope (10) is simultaneously wound on second guide wheel (4b) On.
2. hoisting mechanism according to claim 1, it is characterised in that the central axis of the reel and first guide wheel Distance L1=(D1+D2)/4 between the split of (4a).
3. hoisting mechanism according to claim 1, it is characterised in that being provided with least two on the rope winding jib (4) can The road wheel (14) slided on the rope winding jib walking guide rail (7), the rope winding jib (4) is by the road wheel (14) in institute State and slided in rope winding jib walking guide rail (7).
4. hoisting mechanism according to claim 1, it is characterised in that first steel wire rope (9) is wrapped in the reel The number of turns on one section (1) is equal to the number of turns that second steel wire rope (10) is wrapped on two sections of the reel (2).
5. hoisting mechanism according to claim 4, it is characterised in that first steel wire rope (9) is wrapped in the reel 3~20 circle on one section (1).
6. hoisting mechanism according to claim 1, it is characterised in that the both ends of the reel are respectively fixed with baffle plate (15)。
7. hoisting mechanism according to claim 1, it is characterised in that the hoisting mechanism also includes:Cord-pressing block (16) and Screw (17), the cord-pressing block (16) is by the screw (17) by first steel wire rope (9) and second steel wire rope (10) press fitting is fixed on the reel one section (1) and two sections of the reel (2) respectively.
8. hoisting mechanism according to claim 7, it is characterised in that the cord-pressing block (16) and the screw (17) are Multiple, multiple cord-pressing blocks (16) are respectively along the reel one section (1) and the uniform cloth of circumferencial direction of the reel two sections (2) Put.
9. hoisting mechanism according to claim 1, it is characterised in that the rope winding jib drive component (5) includes steering box (5a), steering box driving wheel (5b), steering box driven pulley (5c) and steering box chain, the input shaft of the steering box (5a) and institute Spool shaft (3) drive connection is stated, and the input shaft of the steering box (5a) is arranged in parallel with the spool shaft (3), the steering The output shaft of the input shaft of case (5a) and the steering box (5a) is in the same plane and is mutually perpendicular to, and the steering box is actively Take turns (5b) be arranged on the steering box (5a) output shaft on, the steering box driving wheel (5b) by the steering box chain with The steering box driven pulley (5c) drive connection, the rope winding jib transmission component (6) include driving wheel (19), driven pulley (18) and Chain (6a), the driving wheel (19) and the driven pulley (18) are arranged in the two of the walking distance of the rope winding jib (4) End, the both ends of the chain (6a) are separately fixed at the both ends of the rope winding jib (4), and the middle part of the chain (6a) is wound respectively On the driving wheel (19) and the driven pulley (18), and the steering box driven pulley (5c) and the driving wheel (19) difference It is fixedly mounted in same rotating shaft.
CN201510808540.7A 2015-11-20 2015-11-20 A kind of reel and its hoisting mechanism CN105417418B (en)

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Application Number Priority Date Filing Date Title
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CN105417418B true CN105417418B (en) 2018-03-20

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CN106081966B (en) * 2016-08-12 2019-02-01 常熟中德重机有限公司 A kind of anchor winch combination reel
CN107215768A (en) * 2017-06-14 2017-09-29 国投镇江港有限公司集装箱分公司 A kind of multi-functional field bridge steel wire rope sling
CN107265294A (en) * 2017-06-14 2017-10-20 国投镇江港有限公司集装箱分公司 A kind of anti-swing mechanism of bridge crane tool
CN108483292B (en) * 2018-01-31 2019-12-17 武汉船用机械有限责任公司 double-rope-outlet winch
CN108750044B (en) * 2018-06-04 2019-09-10 汕深海洋科技(深圳)有限公司 A kind of equipment of moving under water under water for ocean engineering
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CN101357742A (en) * 2008-09-02 2009-02-04 大连博瑞重工有限公司 Wire rope reverse twisting device
CN101537985A (en) * 2009-04-03 2009-09-23 抚顺挖掘机制造有限责任公司 Integral duplex dual-polyline variable-amplitude winding drum of caterpillar crane
CN202400768U (en) * 2011-12-15 2012-08-29 中国地质大学(武汉) Automatic rope distributing, weighing and sounding integrated device of rope coring winch
CN102674177A (en) * 2012-04-23 2012-09-19 如东宏信机械制造有限公司 Pneumatic umbilical cord winch
CN103569888A (en) * 2013-10-31 2014-02-12 宁波捷胜海洋开发有限公司 Deepwater winch provided with brake structure

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Publication number Priority date Publication date Assignee Title
JP2882774B2 (en) * 1996-04-05 1999-04-12 住友建機株式会社 Winch drum structure with equalizer sheave
CN101357742A (en) * 2008-09-02 2009-02-04 大连博瑞重工有限公司 Wire rope reverse twisting device
CN101537985A (en) * 2009-04-03 2009-09-23 抚顺挖掘机制造有限责任公司 Integral duplex dual-polyline variable-amplitude winding drum of caterpillar crane
CN202400768U (en) * 2011-12-15 2012-08-29 中国地质大学(武汉) Automatic rope distributing, weighing and sounding integrated device of rope coring winch
CN102674177A (en) * 2012-04-23 2012-09-19 如东宏信机械制造有限公司 Pneumatic umbilical cord winch
CN103569888A (en) * 2013-10-31 2014-02-12 宁波捷胜海洋开发有限公司 Deepwater winch provided with brake structure

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