CN102765659B - Parallel pulley block grabhook - Google Patents

Parallel pulley block grabhook Download PDF

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Publication number
CN102765659B
CN102765659B CN201210201500.2A CN201210201500A CN102765659B CN 102765659 B CN102765659 B CN 102765659B CN 201210201500 A CN201210201500 A CN 201210201500A CN 102765659 B CN102765659 B CN 102765659B
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CN
China
Prior art keywords
hook
hole
pin
parallel
suspension
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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.)
Expired - Fee Related
Application number
CN201210201500.2A
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Chinese (zh)
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CN102765659A (en
Inventor
金凯岷
徐振威
徐伟权
徐椿林
毛福明
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NINGBO LION MACHINERY MANUFACTURING CO LTD
Original Assignee
NINGBO LION MACHINERY MANUFACTURING CO LTD
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Priority to CN201210201500.2A priority Critical patent/CN102765659B/en
Publication of CN102765659A publication Critical patent/CN102765659A/en
Application granted granted Critical
Publication of CN102765659B publication Critical patent/CN102765659B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a parallel pulley block grabhook, comprising at least two parallel pulley blocks and a hoisting mechanism. Each pulley block comprises a left hanging plate and a right hanging plate, and is provided with a hanger on the upper part, a pulley shaft on the middle part and a lifting mechanism connected to the lower part; and the left hanging plate, the right hanging plate and the pulleys are fixed by six double-headed screws. The hoisting mechanism comprises a hoisting hook bracket provided with hoisting plates and a hoisting hook; each hoisting plate is provided with a plurality of hanger shaft holes, and a beam hole at the lower end; the left hanging plate and the right hanging plate cooperate with the hanger shaft holes of the two symmetrical plates through a hanger shaft; the beam hole of the hoisting plate is provided with a beam; a suspender seat on the middle of the beam is provided a suspender hole; the hoisting hook comprises a suspender and hooks; the suspender is connected with the suspender hole through a thrust aligning roller bearing arranged in the upper end of the suspender hole; a diameter of the suspender hole is slightly greater than that of the suspender; and a hook mouth is provided a self-locking mechanism. According to the invention, multiple pulley blocks are parallel-connected for traction and are in three-dimensional distribution to prevent swaying of the hook; and the hook mouth is provided with the self-locking mechanism, and the suspender is provided with the thrust aligning roller bearing to realize good force balance, so as to adapt to inclined force, which does not have large angle of avertence.

Description

Assembly pulley lifting hook in parallel
Technical field
The invention belongs to weight-lifting equipment attachment technique field, be specifically related to a kind of lifting hook.
Background technology
Weight-lifting equipment is when lifting cargo, safety is the first critical major issue, relevant national standard has many regulations to this, many regulations comprising relevant lifting hook, as according to mechanism's working level definite hook mechanical property and hoisting capacity, in order to guarantee to hook, hang reliable and stable safety, prior art has many technical measures, but still has such or such defect.
For the lifting hook for different load-carryings, should select the assembly pulley of corresponding rated value, but the arrangement of assembly pulley is different, its tractive force to hook distributes also different, and this directly has influence on the stationarity of lifting.
The frame mode of hook is different, also can have influence on the stationarity of lifting.
For example China Patent No. ZL 200920207832.5, name is called the utility model patent of " ward off rope support of lifting hook and lifting hook ", disclose a kind of lifting hook, this lifting hook comprises two relative identical the first ward off rope support, the second ward off rope support and the 3rd ward off rope support of side plate, assembly pulley, crossbeam, suspension hook, structure.Assembly pulley is connected between biside plate by sheave shaft.Crossbeam is arranged between biside plate.Suspension hook is connected with nut through crossbeam, the bearing fit on described nut and crossbeam.Three ward off rope support are arranged between biside plate around assembly pulley, the first ward off rope support is arranged between assembly pulley and suspension hook, the second ward off rope support and the 3rd ward off rope support are positioned at the relative both sides of assembly pulley, each ward off rope support comprises base plate and rope blocking plate, rope blocking plate is disposed on base plate, and the distance between two adjacent rope blocking plates is greater than the diameter of cable wire end.This hoisting hook device is stationary structure, comprises assembly pulley, by in-line formula, connects.The tractive force of its steel rope is all in a straight line, and the suspension plate of the assembly pulley of this structure is also being followed straight line setting to the tractive force of hook, and this layout is unfavorable for preventing that hook from rocking toward the left and right sides, poor stability.
And for example Chinese Patent Application No. 201110037513.6, name is called the application for a patent for invention of the lifting hook of flexible rotating " a kind of can ", a kind of lifting hook that can flexible rotating is disclosed, it comprises suspension hook, crossbeam, thrust baring and nut, the described suspension hook neck of hook is through described crossbeam, and be threaded connection with nut, described nut is fixed on described crossbeam top, described thrust baring is arranged between described crossbeam and nut, wherein, the bottom of described crossbeam inner hole wall is provided with a upper groove and a lower groove, in described upper groove, be provided with tourelle, in described lower groove, be provided with leakproofing material, the upper surface of described crossbeam is provided with boss, and the lower surface of described nut is provided with groove, and described boss agrees with mutually with groove.This lifting hook hangs over the neck of hook on a plain thrust bearing, in lower end, assist a radial ball bearing is set again, its objective is the load of bearing vertical direction with plain thrust bearing, with radial ball bearing, keep out neck of hook lateral drift again, still, in order to stop neck of hook deflection, its application force will conduct to assembly pulley by crossbeam, cause the not steady of lifting hook integral body, although always the deflection of the neck of hook is general very little, but because its lateral action moment of leverage is very large.
Summary of the invention
The technical issues that need to address of the present invention are, the lifting hook tractive force that overcomes prior art is following straight line setting and is being unfavorable for the defect that prevents that hook from rocking toward both sides, using planar thrust baring affects the stability of lifting hook integral body, provide a kind of many group assembly pulleys be arranged in parallel to the tractive force of lifting hook for three-dimensional be provided with to be beneficial to prevent that hook from rocking, selecting the assembly pulley lifting hook in parallel of bearing that can automatic aligning good stability toward both sides, and many groups are respectively organized load while being arranged in parallel and lower the requirement of its intensity and also reduce.
The object of the invention is to be achieved by following technical proposals: a kind of assembly pulley lifting hook in parallel, comprise some groups of assembly pulleys and lift heavy mechanism, assembly pulley has at least been arranged in parallel two groups, described in be arranged in parallel refer to adjacent pulleys group sheave shaft by the rule setting being parallel to each other; Every group of assembly pulley comprises symmetrically arranged left suspension plate and right suspension plate, and the upper-end part of driving between left suspension plate and right suspension plate is provided with suspension bracket, and middle part is provided with sheave shaft, lower end part connecting hanging heavy-duty machine structure; Several pulleys are connected on sheave shaft by bearing, and left suspension plate, right suspension plate and pulley are by six roots of sensation two-thread screw uniform in a circumferential edge centered by sheave shaft and fasten; Lift heavy mechanism is comprised of lift heavy hook support and lift heavy hook, lift heavy hook support comprises symmetrical two blocks of lift heavy plates, the upper-end part of driving of lift heavy plate is provided with several hanging axis holes side by side, the middle part, lower end of lift heavy plate is provided with a crossbeam hole, the left suspension plate of assembly pulley and right suspension plate are connected by hanging axis and the hanging axis hole of symmetrical two blocks of lift heavy plates, in the crossbeam hole of symmetrical two blocks of lift heavy plates, set crossbeam, gooseneck bracket is established in the stage casing of crossbeam, and upper and lower penetrating boom hole is established in the middle part of gooseneck bracket; Lift heavy hook comprises that suspension rod and symmetry and disjunctor are located at two hooks of suspension rod bottom, and suspension rod is connected by being located at self-aligning thrust roller bearing and the boom hole of boom hole upper end, and the slightly larger in diameter of boom hole is in the diameter of suspension rod, and the oral area of hook is provided with self-locking mechanism.
The left suspension plate of assembly pulley and right suspension plate are connected by hanging axis and the hanging axis hole of symmetrical two blocks of lift heavy plates, and the axle of adjacent pulleys group sets by parallel relation.
Be arranged in parallel at least two group assembly pulleys, for example two groups, can make the steel rope of assembly pulley distribute along rectangular two opposite side settings, it is stable that the three-dimensional distribution of this tractive force is extremely conducive to trailed lifting hook.This measure can be likened explanation as follows, there are now two kinds of methods to hang and rise article, the first is that four jiaos of a block length square plate are hung with rope, then an object is hung by the central authorities below flat board, and another kind is that pole two ends hang with rope with a pole, then an object is hung by the central authorities below pole, relatively two kinds of methods are known, and the former is very steady, than the latter, is not easy to rock.
It is to be convenient to set suspension rod that generous gooseneck bracket one is set, the 2nd, and the bending strength in deep beam stage casing.
If self-aligning thrust roller bearing first is to utilize roller to bear axial heavy load, its bearing capacity is much larger than ball bearing of main shaft; Second because be tilting bearing, again because the slightly larger in diameter of boom hole, in the diameter of suspension rod, so for vibration or other horizontal force energy self adaptation in lifting, boom hole can not cause interference to suspension rod, more can not affect the steady of lifting hook integral body.
As preferably, suspension bracket is fixedly connected with and forms with the two clamping plates of both sides by boatswain chair, and clamping plate lower end is provided with pin-and-hole, and suspension bracket is connected with described pin-and-hole by suspended axle and uses nut locking with left suspension plate and right suspension plate, and middle part, boatswain chair upper end is provided with lifting hole(eyelet).
As preferably, cylinder or six prisms that gooseneck bracket is connected in crossbeam middle part by setting form, upper and lower penetrating boom hole is established in the middle part above of cylinder or six prisms, and the upper end of boom hole is provided with counterbore, and the circle of determining of self-aligning thrust roller bearing is engaged in counterbore.
As preferably, the upper end of suspension rod is provided with trapezoidal knuckle thread and is furnished with the nut of increasing, and the lower surface of increasing nut is pressed on the moving-coil end face of self-aligning thrust roller bearing.
As preferably, pulley is connected by plain bearing or antifriction-bearing box with sheave shaft.
As preferably, the section form of hook middle part is Pear-Shaped structure, and described Pear-Shaped structure is intersected and formed by a great circle and a roundlet, and the centre of great circle and roundlet is established transition arc and is connected, and described great circle is towards the inner chamber of hook.
As preferably, described self-locking mechanism consists of link span and pin, link span is fixedly connected on the middle part of described suspension rod, the outer peripheral face of link span is provided with lug, pin has one end to be connected by bearing pin with the lug of link span, bearing pin is provided with pin reduction torsion spring, and the other end of pin is for being pressed on the cantilever end inside hook tail end.
As preferably, described pin is the sheet metal component of the wide inswept in rear end, sheet metal component is the structure that is provided with square or ∩ shape flanging, the rear end of sheet metal component is connected with the pin shaft hole being located on the lug of link span by bearing pin, described pin reduction torsion spring is enclosed within on bearing pin, pin reduction torsion spring has one end to be against the side of lug, and the other end of pin reduction torsion spring is against the bottom of square or ∩ shape flanging.
As preferably, described link span is circular ring structure, the outer peripheral face of annulus is arranged with two lugs, being radially separately provided with two symmetrical fixing screw holes and being furnished with fix screw along annulus, described annulus is spliced to form by two semicircular ring, lug is located at the end of each semicircular ring, and two semicircular ring connect with bolt by corresponding lug; On lug, be also provided with pin and connect pin-and-hole or screw.
The invention has the beneficial effects as follows:
1, organize that assembly pulley is arranged in parallel the tractive force of hook device is that solid is distributed with to be beneficial to and prevents that hook from rocking toward both sides, good stability more;
2, the oral area of hook is established self-locking mechanism, improves degree of safety;
3, self-aligning thrust roller bearing is established in suspension rod upper end, and equilibrium of forces is better, can meet suspension hook the turning to of different azimuth in 360 °, moreover can adapt to the effect that drift angle is not very large tilting force;
4, assembling easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1;
Fig. 3 is the A-A generalized section of Fig. 2.
In figure, assembly pulley 1; Left suspension plate 11; Right suspension plate 12; Sheave shaft 13; Antifriction-bearing box 14; Two-thread screw 15; Pulley 16; Lift heavy mechanism 2; Lift heavy hook support 21; Lift heavy plate 211; Hanging axis hole 212; Crossbeam hole 213; Lift heavy hook 22; Suspension rod 221; Hook 222; Pear-Shaped structure 223; Hook tail end 224; Crossbeam 23; Gooseneck bracket 231; Boom hole 232; Counterbore 233; Hanging axis 24; Increase nut 25; Suspension bracket 3; Boatswain chair 31; Connecting plate 32; Pin-and-hole 321; Nut 322; Suspended axle 33; Lifting hole(eyelet) 34; Self-aligning thrust roller bearing 5; Link span 61; Lug 611; Pin 62; Flanging 621; Bearing pin 63; Pin reduction torsion spring 64; Fix screw 65.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments, the invention will be further described.
Embodiment 1: as shown in Figure 1, a kind of assembly pulley lifting hook in parallel, comprises assembly pulley 1 and lift heavy mechanism 2, and assembly pulley 1 has been arranged in parallel two groups, and the sheave shaft of adjacent pulleys group is arranged in parallel, every group of assembly pulley comprises symmetrically arranged left suspension plate 11 and right suspension plate 12, and the upper-end part of driving between left suspension plate 11 and right suspension plate 12 is provided with suspension bracket 3, and middle part is provided with sheave shaft 13, lower end part connecting hanging heavy-duty machine structure 2, pulley is connected on sheave shaft 13 by antifriction-bearing box 14, and left suspension plate 11, right suspension plate 12 and pulley are by six roots of sensation two-thread screw 15 uniform in a circumferential edge centered by sheave shaft 1 and fasten, lift heavy mechanism 2 is comprised of lift heavy hook support 21 and lift heavy hook 22, lift heavy hook support 21 comprises symmetrical two blocks of lift heavy plates 211, the upper-end part of driving of lift heavy plate 211 is arranged with 3 hanging axis holes 212 side by side, the middle part, lower end of lift heavy plate 211 is provided with a crossbeam hole 213, the left suspension plate 11 of assembly pulley 1 and right suspension plate 12 are connected by hanging axis 16 and the hanging axis hole 212 of symmetrical two blocks of lift heavy plates 211, in the crossbeam hole 213 of symmetrical two blocks of lift heavy plates 211, set crossbeam 23, gooseneck bracket 231 is established in the stage casing of crossbeam 23, upper and lower penetrating boom hole 232 is established in the middle part of gooseneck bracket 231, lift heavy hook 22 comprises that suspension rod 221 and symmetry and disjunctor are located at two hooks 222 of suspension rod bottom, suspension rod 221 is connected with boom hole 232 by being located at the self-aligning thrust roller bearing 5 of boom hole 232 upper ends, the slightly larger in diameter of boom hole 232 is in the diameter of suspension rod 221, and the oral area of hook is provided with self-locking mechanism.
The left suspension plate 11 of assembly pulley 1 and right suspension plate 12 are connected by hanging axis 24 and the hanging axis hole 212 of symmetrical two blocks of lift heavy plates 211, and the axle of adjacent pulleys group sets by parallel relation.
Be arranged in parallel two groups of assembly pulleys, can make the steel rope of assembly pulley distribute along rectangular two opposite side settings, it is stable that the three-dimensional distribution of this tractive force is extremely conducive to trailed lifting hook.
It is to be convenient to set suspension rod 221, two that generous gooseneck bracket 231 1 is set, the bending strength in deep beam 23 stage casings.
If self-aligning thrust roller bearing 5 first is to utilize roller to bear axial heavy load, its bearing capacity is much larger than ball bearing of main shaft; Second because be tilting bearing, again because the slightly larger in diameter of boom hole 232 in the diameter of suspension rod 221, so for vibration or other horizontal force energy self adaptation in lifting, boom hole 232 can not cause interference to suspension rod, more can not affect the steady of lifting hook integral body.
Suspension bracket 3 is fixedly connected with and forms with two connecting plates 32 of both sides by boatswain chair 31, connecting plate 32 lower ends are provided with pin-and-hole 321, suspension bracket 3 is connected with described pin-and-hole 321 by suspended axle 33 with left suspension plate 11 and right suspension plate 12 and uses nut 322 lockings, and boatswain chair 31 middle parts, upper end are provided with lifting hole(eyelet) 34.
Six prisms that gooseneck bracket 231 is connected in crossbeam 23 middle parts by setting form, and upper and lower penetrating boom hole 232 is established in the middle part above of six prisms, and the upper end of boom hole 232 is provided with counterbore 233, and the circle of determining of self-aligning thrust roller bearing 5 is engaged in heavy 233 holes.
The upper end of suspension rod 221 is provided with trapezoidal knuckle thread and is furnished with the nut of increasing 25, and the lower surface of increasing nut 25 is pressed on the moving-coil end face of self-aligning thrust roller bearing 5.
Pulley 16 is connected by antifriction-bearing box 14 with sheave shaft 13.
The section form of hook 222 middle parts is Pear-Shaped structure 223, and described Pear-Shaped structure is intersected and formed by a great circle and a roundlet, and the centre of great circle and roundlet is established transition arc and is connected, and described great circle is towards the inner chamber of hook.
Described self-locking mechanism consists of link span 61 and pin 62, link span 61 is fixedly connected on the middle part of suspension rod 221, the outer peripheral face of link span 61 is provided with lug 611, pin 62 has one end to be connected by bearing pin 63 with the lug 611 of link span 61, bearing pin 63 is provided with pin reduction torsion spring 64, and the other end of pin 62 is for being pressed on the cantilever end of hook tail end 224 inner sides.
Concrete, pin 62 is the sheet metal component of the wide inswept in rear end, sheet metal component is the structure that is provided with ∩ shape flanging 621, the rear end of sheet metal component is connected with the pin shaft hole being located on the lug 611 of link span 61 by bearing pin 63, described pin reduction torsion spring 64 is enclosed within on bearing pin 63, pin reduction torsion spring 64 has one end to be against the side of lug 611, and the other end of pin reduction torsion spring 64 is against the bottom of ∩ shape flanging 621.
Described link span 61 is for to be spliced to form circular ring structure by two semicircular ring, and the end of each semicircular ring is established 611, two semicircular ring of lug and connected with bolt by corresponding lug; Semicircular ring middle part is established fixing screw hole and is furnished with fix screw 65, is also provided with pin and connects pin-and-hole on lug.
The present invention can use in the various lifting hooks that are provided with assembly pulley, have advantages of expand lifting hook specified lifting amount, lifting more steadily, improve degree of safety, if those skilled in the art does simple modification or replacement to foregoing invention content, such change can not be thought to depart from the scope of the present invention, all like this to the apparent modification of those skilled in the art by within being included in the scope of claim of the present invention.

Claims (9)

1. an assembly pulley lifting hook in parallel, comprises some groups of assembly pulleys and lift heavy mechanism, it is characterized in that, assembly pulley has at least been arranged in parallel two groups, described in be arranged in parallel refer to adjacent pulleys group sheave shaft by the rule setting being parallel to each other; Every group of assembly pulley comprises symmetrically arranged left suspension plate and right suspension plate, and the upper-end part of driving between left suspension plate and right suspension plate is provided with suspension bracket, and middle part is provided with sheave shaft, lower end part connecting hanging heavy-duty machine structure; Several pulleys are connected on sheave shaft by bearing, and left suspension plate, right suspension plate and pulley are by six roots of sensation two-thread screw uniform in a circumferential edge centered by sheave shaft and fasten; Lift heavy mechanism is comprised of lift heavy hook support and lift heavy hook, lift heavy hook support comprises symmetrical two blocks of lift heavy plates, the upper-end part of driving of lift heavy plate is provided with several hanging axis holes side by side, the middle part, lower end of lift heavy plate is provided with a crossbeam hole, the left suspension plate of assembly pulley and right suspension plate are connected by hanging axis and the hanging axis hole of symmetrical two blocks of lift heavy plates, in the crossbeam hole of symmetrical two blocks of lift heavy plates, set crossbeam, gooseneck bracket is established in the stage casing of crossbeam, and upper and lower penetrating boom hole is established in the middle part of gooseneck bracket; Lift heavy hook comprises that suspension rod and symmetry and disjunctor are located at two hooks of suspension rod bottom, and suspension rod is connected by being located at self-aligning thrust roller bearing and the boom hole of boom hole upper end, and the slightly larger in diameter of boom hole is in the diameter of suspension rod, and the oral area of hook is provided with self-locking mechanism.
2. assembly pulley lifting hook in parallel according to claim 1, it is characterized in that, suspension bracket is fixedly connected with and forms with the two clamping plates of both sides by boatswain chair, clamping plate lower end is provided with pin-and-hole, suspension bracket is connected with described pin-and-hole by suspended axle and uses nut locking with left suspension plate and right suspension plate, and middle part, boatswain chair upper end is provided with lifting hole(eyelet).
3. assembly pulley lifting hook in parallel according to claim 1, it is characterized in that, cylinder or six prisms that gooseneck bracket is connected in crossbeam middle part by setting form, upper and lower penetrating boom hole is established in the middle part above of cylinder or six prisms, the upper end of boom hole is provided with counterbore, and the circle of determining of self-aligning thrust roller bearing is engaged in counterbore.
4. according to the assembly pulley lifting hook in parallel described in claim 1 or 2 or 3, it is characterized in that, the upper end of suspension rod is provided with trapezoidal knuckle thread and is furnished with the nut of increasing, and the lower surface of increasing nut is pressed on the moving-coil end face of self-aligning thrust roller bearing.
5. according to the assembly pulley lifting hook in parallel described in claim 1 or 2 or 3, it is characterized in that, pulley is connected by plain bearing or antifriction-bearing box with sheave shaft.
6. assembly pulley lifting hook in parallel according to claim 4, it is characterized in that, the section form of hook middle part is Pear-Shaped structure, and described Pear-Shaped structure is intersected and formed by a great circle and a roundlet, the centre of great circle and roundlet is established transition arc and is connected, and described great circle is towards the inner chamber of hook.
7. assembly pulley lifting hook in parallel according to claim 6, it is characterized in that, described self-locking mechanism consists of link span and pin, link span is fixedly connected on the middle part of described suspension rod, the outer peripheral face of link span is provided with lug, pin has one end to be connected by bearing pin with the lug of link span, and bearing pin is provided with pin reduction torsion spring, and the other end of pin is for being pressed on the cantilever end inside hook tail end.
8. assembly pulley lifting hook in parallel according to claim 7, it is characterized in that, described pin is the sheet metal component of the wide inswept in rear end, sheet metal component is the structure that is provided with square or ∩ shape flanging, the rear end of sheet metal component is connected with the pin shaft hole being located on the lug of link span by bearing pin, described pin reduction torsion spring is enclosed within on bearing pin, and pin reduction torsion spring has one end to be against the side of lug, and the other end of pin reduction torsion spring is against the bottom of square or ∩ shape flanging.
9. assembly pulley lifting hook in parallel according to claim 8, it is characterized in that, described link span is circular ring structure, the outer peripheral face of annulus is arranged with two lugs, being radially separately provided with two symmetrical fixing screw holes and being furnished with fix screw along annulus, described annulus is spliced to form by two semicircular ring, and lug is located at the end of each semicircular ring, and two semicircular ring connect with bolt by corresponding lug; On lug, be also provided with pin and connect pin-and-hole or screw.
CN201210201500.2A 2012-06-19 2012-06-19 Parallel pulley block grabhook Expired - Fee Related CN102765659B (en)

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Application Number Priority Date Filing Date Title
CN201210201500.2A CN102765659B (en) 2012-06-19 2012-06-19 Parallel pulley block grabhook

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CN102765659A CN102765659A (en) 2012-11-07
CN102765659B true CN102765659B (en) 2014-08-06

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102992182A (en) * 2012-11-19 2013-03-27 常州海力船用设备有限公司 Marine 800-ton lifting hook group
CN106986263A (en) * 2015-08-13 2017-07-28 吴小再 Building materials transporting equipment for building provided with pressure sensor
CN106114914B (en) * 2016-08-12 2019-02-22 浙江工业大学 A kind of flexible hanging device for the hanging of sun wing plate
CN108502718B (en) * 2018-06-26 2020-03-20 合肥市春华起重机械有限公司 Crane lifting hook convenient to disassemble

Citations (6)

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Publication number Priority date Publication date Assignee Title
EP1386877A2 (en) * 2002-08-02 2004-02-04 Demag Cranes & Components GmbH Suspension means for a load pick-up means, more particularly for lower pulleys of lifting devices, method for mounting circlips and related mounting device
CN2839216Y (en) * 2005-05-11 2006-11-22 陈熙祖 A kind of many otic placodes structure suspension hook
CN2931426Y (en) * 2006-06-12 2007-08-08 上海三一科技有限公司 Dual-purpose lift hook apparatus
CN201276389Y (en) * 2008-10-07 2009-07-22 福田雷沃国际重工股份有限公司 Combined type hanging hook for crane
CN201665475U (en) * 2009-08-13 2010-12-08 上海三一科技有限公司 Lifting hook and rope stop support thereof
CN202704825U (en) * 2012-06-19 2013-01-30 宁波雄狮机械制造有限公司 Parallel-connected pulley block hoisting hook

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1386877A2 (en) * 2002-08-02 2004-02-04 Demag Cranes & Components GmbH Suspension means for a load pick-up means, more particularly for lower pulleys of lifting devices, method for mounting circlips and related mounting device
CN2839216Y (en) * 2005-05-11 2006-11-22 陈熙祖 A kind of many otic placodes structure suspension hook
CN2931426Y (en) * 2006-06-12 2007-08-08 上海三一科技有限公司 Dual-purpose lift hook apparatus
CN201276389Y (en) * 2008-10-07 2009-07-22 福田雷沃国际重工股份有限公司 Combined type hanging hook for crane
CN201665475U (en) * 2009-08-13 2010-12-08 上海三一科技有限公司 Lifting hook and rope stop support thereof
CN202704825U (en) * 2012-06-19 2013-01-30 宁波雄狮机械制造有限公司 Parallel-connected pulley block hoisting hook

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