CN105293311B - A kind of tower crane with wind-shielding function - Google Patents

A kind of tower crane with wind-shielding function Download PDF

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Publication number
CN105293311B
CN105293311B CN201510827587.8A CN201510827587A CN105293311B CN 105293311 B CN105293311 B CN 105293311B CN 201510827587 A CN201510827587 A CN 201510827587A CN 105293311 B CN105293311 B CN 105293311B
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jib
counter
counterweight
lifting
turntable
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CN105293311A (en
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黄青剑
胡卿琳
蔡尔多
章孟能
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Jiaxing Juteng Information Technology Co ltd
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ZHENHAI CONSTRUCTION GROUP Co Ltd
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Abstract

A kind of tower crane with wind-shielding function, the present invention relates to a kind of building machinery, there are the relative lifting protuberance in two positions and balance protuberance on turntable, there is crane arm slot on lifting protuberance, there is lifting turntable in crane arm slot, there is lifting rotating shaft on lifting turntable, crane arm is in lifting rotating shaft, there is counter-jib slot on balance protuberance, sliding has balance rotating platform in counter-jib slot, there is balance rotating shaft on balance rotating platform, counter-jib is in balance rotating shaft, crane arm and counter-jib have first Guyed Towers and second Guyed Towers, tower top has first tubing sections device and second tubing sections device, there is counterweight lowering or hoisting gear on top in jacking stock, counterweight lowering or hoisting gear can be moved up and down inside standard knot, there is counterweight slideway on counter-jib.Compared with prior art, the present invention not only Fast Installation can dismantle balancing weight under typhoon or other strong wind states, and palintrope can also be unloaded in balancing weight and turns up weighing arm and counter-jib to reduce wind area holding tower body steadily of centre of gravity.

Description

A kind of tower crane with wind-shielding function
Technical field
The present invention relates to a kind of constructional engineering machinery, more particularly, to a kind of construction site derrick crane.
Background technology
Derrick crane abbreviation tower crane, also known as tower crane, originating from West Europe.It is exactly the rotation that swing arm is mounted in towering tower body top Turn crane.Derrick crane working space is big, is mainly used in housing construction the vertically and horizontally conveying of material and builds Build the installation of component.It is made up of metal structure, operating mechanism and the part of electrical system three.Metal structure include tower body, swing arm and Base etc..There are raising, luffing, four parts of revolution and walking in operating mechanism.Electrical system include motor, controller, power distribution cabinet, Connection line, signal and lighting device etc..With the progress of engineering technology, the floor more and more higher built now so that required Derrick crane also more and more higher, but too high derrick crane has the problem of stability is poor, especially in southeastern coast During typhoon, often occurs the event that derrick crane is created greater casualties in typhoon day by extension.In addition, derrick crane is all Need that balancing weight is installed, balancing weight is hung on derrick crane with other loop wheel machines mostly, installing/dismounting trouble so that tower Crane can not realize fast-assembling.
The content of the invention
The present invention is of the invention not only for of the prior art not enough there is provided a kind of tower crane with wind-shielding function With the Fast Installation dismounting balancing weight under typhoon or other strong wind states, palintrope can also be unloaded in balancing weight and turns up weight Arm and counter-jib keep tower body steadily of centre of gravity to reduce wind area.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：One kind has wind-shielding function Tower crane, including pedestal, tower body, jacking stock, turntable, crane arm, counter-jib and balancing weight, described tower body is by several Standard knot is built, and the jacking stock can be moved on the standard knot, and the turntable is arranged on the jacking stock Top, the tower top is arranged on the turntable, and the relative lifting protuberance in two positions is provided with described turntable Crane arm slot is provided with protuberance, described lifting protuberance with balancing, sliding is provided with described crane arm slot Lifting rotating shaft is provided with lifting turntable, described lifting turntable, described crane arm is arranged on described lifting rotating shaft On, sliding in counter-jib slot, described counter-jib slot is provided with described balance protuberance and is provided with balance rotating platform, Balance rotating shaft is provided with described balance rotating platform, described counter-jib is arranged in described balance rotating shaft, described rises It is respectively arranged with and is engaged with the lifting turntable and the balance rotating platform in weighing arm slot and described counter-jib slot The electronic locking mechanism of first and the electronic locking mechanism of second, be respectively arranged with first drawing at the top of the crane arm and the counter-jib top Rope tower and second Guyed Towers, the tower top are provided with first tubing sections device and second tubing sections device, the first Guyed Towers and institute State and connected by first rope between first tubing sections device, second is passed through between the second Guyed Towers and the second tubing sections device Rope is connected, and top is provided with counterweight lowering or hoisting gear in described jacking stock, and the counterweight lowering or hoisting gear can be in the standard knot Inside is moved up and down, and the counterweight slideway being engaged with the counterweight lowering or hoisting gear, described balance are provided with the counter-jib The fixing device of the fixed balancing weight is additionally provided with arm.
In above-mentioned technical proposal, it is preferred that described counterweight lowering or hoisting gear includes setting on lifter, described lifter Have and counterweight fixed station be provided with some drawstrings, described drawstring, fixed station slideway is provided with described counterweight fixed station, On described fixed station slideway slide be provided with several balancing weight fixed mounts, described counterweight slideway be provided with it is described solid Determine the alignment device that platform slideway is engaged.
In above-mentioned technical proposal, it is preferred that be provided with connection on the alignment device electric rotation shaft, described electric rotation shaft The connection slideway with the fixed station slideway and counterweight slideway cooperation, described company are provided with plate, described connecting plate It is additionally provided with several electric expansion limited posts, described fixed station and is provided with and the electric expansion limited post phase on fishplate bar The spacing hole matched somebody with somebody.
In above-mentioned technical proposal, it is preferred that described spacing hole is tapered, is inwardly gradually reduced at opening.
In above-mentioned technical proposal, it is preferred that protection framework, motor and electricity are provided with described balancing weight fixed mount It is dynamic locked piece.
In above-mentioned technical proposal, it is preferred that be respectively arranged with inside fixed lobe on described protection framework biside plate, The fixed groove being engaged with the fixed lobe is provided with described balancing weight.
In above-mentioned technical proposal, it is preferred that several supports are provided between the counterweight slideway and the counter-jib and are connected Extension bar.
In above-mentioned technical proposal, it is preferred that described fixing device is included on electric turnover frame, described electric turnover frame It is provided with telescopic cylinder, described telescopic cylinder and is provided with fixed dam.
In above-mentioned technical proposal, it is preferred that described first rope and described second rope all twist into for some steel wire ropes.
Existing balancing weight is lifted by crane, and one piece one piece of installation is needed during lifting, not only installs effect Rate is low, and the time is long, and dismounting operation can not be also carried out when bad environments, once projection strong wind, balancing weight can not unload non- The crank of tower crane is often easily caused, jeopardizes production and construction safety.It is of the invention then be by being arranged on inside derrick crane Counterweight lowering or hoisting gear carry out the installation of balancing weight, without external force, and be not affected by the weather, as long as derrick crane can enter Row work, it is possible to carry out the dismounting of balancing weight.Its cardinal principle forms transport channel using standard knot inner space, leads to herein The rise of balancing weight is carried out in road with putting down, is then moved to after balancing weight rises to top by the counterweight slideway on counter-jib The end of counter-jib, is fixed finally by the fixing device on counter-jib.It is consistent when principle is with installing when balancing weight is unloaded, First pass through fixing device and release fixation, then slide onto on counterweight lowering or hoisting gear, be finally down to ground.In order to reach this effect Really, counterweight lowering or hoisting gear of the invention includes lifter, is provided with some drawstrings, drawstring on lifter and is provided with counterweight and consolidates Determine to be provided with platform, counterweight fixed station on fixed station slideway, fixed station slideway and be provided with balancing weight fixed mount.Balancing weight, which is put into, matches somebody with somebody On pouring weight fixed mount, the fixed station slideway on counterweight fixed station can be directed at insertion with counterweight slideway, complete to match somebody with somebody by lifter The rise and fall of pouring weight, complete balancing weight further through counterweight slideway and fixed station slideway and are moved on counter-jib.Again because matching somebody with somebody Weight lowering or hoisting gear can once transport multiple balancing weights or single balancing weight so that derrick crane in use can be quick Increase reduces breeding, it is thus also avoided that need to replace all balancing weight problems again now.After balancing weight is unloaded, Ke Yicong Lifting protuberance and balance protuberance remove lifting turntable and balance turntable, then in first tubing sections device and second rope Crane arm is allowed to be rotated with counter-jib relative to lifting turntable and balance turntable in the presence of rope stretching device.First tubing sections are filled Put crane arm and counter-jib when putting rope with second tubing sections device to downwardly turn over, when first tubing sections device and second tubing sections dress Crane arm and counter-jib are flipped up when putting rope closing.Stopped operating after crane arm and counter-jib are vertical, now the wind surface of tower crane Product is minimum, and center of gravity is most stable, can be kept to fall in the environment of blast.When needing to use, only need again crane arm peace Weighing apparatus arm dig, then lifting turntable and balance turntable move into lifting protuberance and balance protuberance, such crane arm and Counter-jib can not just overturn and can normally use.The electronic locking mechanism of first and second in crane arm slot and counter-jib slot Crane arm and counter-jib can be locked in lifting protuberance and balance by electronic locking mechanism when crane arm and counter-jib are used In protuberance, there is wobble effects lifting when preventing crane arm and counter-jib from working.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention not only can be in typhoon or other are big Fast Installation dismantles balancing weight under wind state, and palintrope can also be unloaded in balancing weight and turns up weighing arm and counter-jib to reduce wind surface Product keeps tower body steadily of centre of gravity.
Brief description of the drawings
Fig. 1 is front schematic view of the present invention.
Fig. 2 is contraction state schematic diagram of the present invention.
Fig. 3 is present invention balance protuberance side schematic view.
Fig. 4 is lifting protuberance side schematic view of the present invention.
Fig. 5 is Fig. 2-A places of the present invention close-up schematic view.
Fig. 6 is Fig. 2-B places of the present invention close-up schematic view.
Fig. 7 is contraction process schematic diagram of the present invention.
Fig. 8 is use state schematic diagram of the present invention.
Fig. 9 is connecting plate schematic diagram of the present invention.
Figure 10 is balancing weight fixed mount side schematic view of the present invention.
Figure 11 is balancing weight fixed mount front schematic view of the present invention.
Figure 12 is standard knot schematic diagram of the present invention.
Figure 13 is Fig. 8-C places of the present invention partial enlarged drawing schematic diagram.
Figure 14 is Fig. 8-D places of the present invention partial enlarged drawing schematic diagram.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, a kind of tower crane with wind-shielding function, including pedestal 1, tower body 2, jacking stock 3, rotation Platform 6, tower top 7, crane arm 5, counter-jib 4 and balancing weight 11, described tower body 2 are built by several standard knots 21, described Jacking stock 3 can be moved on the standard knot 21, and the turntable 6 is arranged on the top of jacking stock 3, the tower top 7 It is arranged on the turntable 6.
The relative lifting protuberance 61 in two positions and balance protuberance 62 are provided with described turntable 6, it is described It is provided with lifting protuberance 61 in crane arm slot 611, described crane arm slot 611 and is provided with lifting groove track 615, is risen Sliding, which is provided with lifting turntable 612, described lifting turntable 612, on Baking soda track 615 is provided with lifting rotating shaft 613, Described crane arm 5 is arranged in described lifting rotating shaft 613.Counter-jib slot is provided with described balance protuberance 62 621, balance groove track 625 is provided with described counter-jib slot 621, the sliding of lifting groove track 625 is provided with balance rotating Balance rotating shaft 623 is provided with platform 622, described balance rotating platform 622, described counter-jib 4 is arranged on described balance and turned On axle 623.It is respectively arranged with and the lifting turntable in described crane arm slot 611 and described counter-jib slot 621 612 and the balance rotating the platform 622 electronic locking mechanism 614 of first and the electronic locking mechanism 624 of second that are engaged, described lifting It is additionally provided with protuberance 61 and limits the first limitting casing 63 that the lifting rotating shaft 613 is moved, on described balance protuberance 62 also The second limitting casing 64 for setting the restricted balance rotating shaft 623 to move.
First Guyed Towers 55 and second Guyed Towers 48 are respectively arranged with the top of crane arm 5 and the counter-jib 4 top, it is described Tower top 7 is provided with first tubing sections device 73 and second tubing sections device 71, the first Guyed Towers 55 and the first tubing sections Connected between device 73 by first rope 74, second rope is passed through between the second Guyed Towers 48 and the second tubing sections device 71 Connection 72, described first rope 74 and described second rope 72 all twist into for some steel wire ropes.The described top of counter-jib 4 turns Dynamic to be provided with electronic drag hook 46, described electronic drag hook 46 can hang over the junction between two standard knots 21.The crane arm 5 Top is provided with the cambered way 53 being connected with the lifting slideway 51, described lifting slideway 51 and the cambered way 53 Between have occluding device 54.Described crane arm 5 and the described top end of counter-jib 4 are respectively arranged with first cable lifter 56 and second cable lifter 47, it is provided with and the first cable lifter 56 and the second cable lifter on described pedestal 1 47 fixed hooks 13 coordinated.
Top is provided with counterweight lowering or hoisting gear 8 in described jacking stock 3, and the counterweight lowering or hoisting gear 8 can be in the standard Moved up and down inside section 21, the counterweight slideway 41 being engaged with the counterweight lowering or hoisting gear 8, institute are provided with the counter-jib 4 State and several supporting linkages 42 are provided between counterweight slideway 41 and the counter-jib 4.Described counterweight lowering or hoisting gear 8 includes It is provided with lifter 81, described lifter 81 on some drawstrings 82, described drawstring 82 and is provided with counterweight fixed station 83, It is provided with to slide on fixed station slideway 84, described fixed station slideway 84 on described counterweight fixed station 83 and is provided with several and matches somebody with somebody Protection framework 853, motor 851 and electronic locked piece are provided with pouring weight fixed mount 85, described balancing weight fixed mount 85 852.It is respectively arranged with inside fixed lobe 854, described balancing weight 11 and sets on the described biside plate of protection framework 853 There is the fixed groove being engaged with the fixed lobe 854.It is provided with described counterweight slideway 41 and the fixed station slideway 84 alignment devices 43 being engaged.The alignment device 43 includes being provided with electric rotation shaft 431, described electric rotation shaft 431 The connection with the fixed station slideway 84 and the counterweight slideway 41 cooperation is provided with connecting plate 432, described connecting plate 432 It is additionally provided with several electric expansion limited posts 434, described fixed station 83 and sets on slideway 433, described connecting plate 432 There is the spacing hole 86 matched with the electric expansion limited post 434.Described spacing hole 86 is tapered, at opening inwardly gradually Reduce.
The fixing device 44 of the fixed balancing weight 11 is additionally provided with described counter-jib 4 and the balancing weight 11 is protected Airbag apparatus 45, described fixing device 44, which includes being provided with electric turnover frame 441, described electric turnover frame 441, stretches Fixed dam 443 is provided with contracting cylinder 442, described telescopic cylinder 442.Described airbag apparatus 45 is described including being arranged on The repeatable inflated airbag of the top bottom of counter-jib 4451, described air bag 451 is the cuboid of opening upwards, described gas Fast connection interface 452 is provided between capsule 451 and described counter-jib 4.
Tower crane of the present invention rapid removal balancing weight 11 and can pack up the He of crane arm 5 before bad weather arrives Counter-jib 4, changes tower crane center of gravity and wind surface by this measure, several with reduce that the tower crane under strong wind weather topples Rate.Balancing weight 11 and expansion crane arm 5 can quickly be reinstalled again after weather improves and counter-jib 4 allows tower crane to put into work at once Make.Its cardinal principle is to first pass through counterweight lowering or hoisting gear 8 to unload to pedestal 1 balancing weight 11.Firstly the need of passing through fixing device 44 unclamp the fixed dam 443 being pressed against on balancing weight 11, then store solid by electric turnover frame 441 and telescopic cylinder 442 Determine baffle plate 443 and allow whole fixing device 44 away from counterweight slideway 41, the sliding of balancing weight fixed mount 85 is not influenceed.Then rotate The connection slideway 433 that alignment device 43 allows on standard apparatus 43 and the UNICOM of counterweight slideway 41.Counterweight is moved up and down by lifter 81 Fixed station 83, allows counterweight fixed station 83 substantially to be alignd with connecting plate 432, the electric expansion limited post on its relief connecting plate 432 434 stretch out, and are inserted into the spacing hole 86 on counterweight fixed station 83.Because spacing hole 86 it is tapered and at opening inwardly gradually Reduce, in the case where counterweight fixed station 83 and connecting plate 432 have certain deviation electric expansion limited post 434 can be allowed to stretch into Into spacing hole 86, and electric expansion limited post 434 be fully inserted into after counterweight fixed station 83 can be allowed completely right with connecting plate 432 Together, now connection slideway 433, counterweight slideway 41 is connected with the fixed station slideway 8 on counterweight fixed station 83, allows balancing weight fixed mount Motor 851 on 85 starts, on automatic sliding to counterweight fixed station 83, when all balancing weight fixed mounts 85 are all slid onto After on counterweight fixed station 83, start electronic locked piece 852 on balancing weight fixed mount 85, prevent balancing weight fixed mount 85 in fixation Platform slideway 8 is slided.Counterweight fixed station 83 is moved on on pedestal 1 finally by lifter 81.
Balancing weight 11 is moved on to after pedestal 1, first rope 74 between tensioning first Guyed Towers 55 and first tubing sections device 73 and Second rope connection 72 between second Guyed Towers 48 and second tubing sections device 71, then passes through crane arm slot 611 and counter-jib Lifting groove track 615 in slot 621 removes lifting turntable 612 and balance turntable 622 with balance groove track 625, The electronic locking mechanism 614 of first is first passed through before removal and the electronic locking mechanism 624 of second releases lifting turntable 612 and balance turntable Locking between 622 and lifting groove track 615 and balance groove track 625.The shifting of lifting turntable 612 and balance turntable 622 After going out lower crane arm 5 and balance are slowly turned by first tubing sections device 73 and putting for second tubing sections device 71 in rope action Arm 4., it is necessary to which receipts are deflated and bent to the air bag 451 being arranged on counter-jib 4 before crane arm 5 and counter-jib 4 are rotated down Return alignment device 43；Occluding device 54 between lifting slideway 51 and cambered way 53 on crane arm 5 is unclamped, lifting slideway 51 is allowed With the UNICOM of cambered way 53, suspender 52 is facilitated to be moved on cambered way 53.Crane arm 5 and counter-jib 4 can be with after the completion of rotating The first cable lifter 56 and second cable lifter 47 that are arranged on crane arm 5 and the top end of counter-jib 4 is allowed to fall connection rope, And rope is tied up on the fixed hook 13 on pedestal 1, it can so prevent crane arm 5 in inclement weather and the meeting of counter-jib 4 Swing with the wind and occur accident.Lifting turntable 612 and balance turntable 622 are limited in rotation process by first limitting casing 63 and second The limitation of position frame 64, while the rotation of crane arm 5 and counter-jib 4 is not limited by first limitting casing 63 and second limitting casing 64, so Lifting turntable 612 and balance turntable 622 can be avoided to deviate from, whole device discontinuity equalization is caused.
Only need to carry out reverse operating during installation, both first passed through first tubing sections device 73 and second tubing sections device 71 crane arms 5 and the pull-up again of counter-jib 4, then pass through the lifting grooved rail in crane arm slot 611 and counter-jib slot 621 Road 615 moves into lifting turntable 612 and balance turntable 622 with balance groove track 625, and first electric lock is first passed through after immigration Deadlock structure 614 and the electronic locking mechanism 624 of second allow lifting turntable 612 and balance turntable 622 with lifting groove track 615 with putting down Locking between the groove track 625 that weighs, prevents that lifting turntable 612 and balance turntable 622 are deviate from during work.After the completion of fixation, Both balancing weight fixed mount 85 was risen can again, balancing weight fixed mount 85 moved to by connecting slideway 433 and counterweight slideway 41 The top of counter-jib 4.Balancing weight fixed mount 85 is moved to behind the top of counter-jib 4, is propped up by the fixed dam 443 in fixing device 44 Balancing weight fixed mount 85, keeps the stabilization of balancing weight fixed mount 85.Because balancing weight fixed mount 85 can install single balancing weight additional 11, so can operationally carry out installing additional and dismantling for balancing weight 11 at any time, keep between crane arm 5 and counter-jib 4 Different dynamic balances.Air bag 451 has two ways when reclaiming, and one kind is direct deflation, followed by the foldover of counter-jib 4 one Folded, another directly put down by fast connection interface 452.Air bag 451 is if there is toppling and match somebody with somebody in the effect of the present invention Pouring weight 11 drops situation, air bag 451 can be allowed to wrap up balancing weight 11, although air bag 451 can not prevent dropping for balancing weight 11, but It is the particle that air bag 451 can prevent balancing weight 11 from being splashed after breaking into pieces, prevents these particles splash from hurting sb.'s feelings and damaging machine.Together When the present invention be also provided with limit guide groove 31 on jacking stock 3, limit guide groove 31 can be with the installation of auxiliary criteria section 21, in mark The top of quasi- section 21 is provided with the sliver 22 being engaged with limit guide groove 31, and the bottom of standard knot 21 is provided with to match with the sliver 22 That closes agrees with groove 23, and the opening of limit guide groove 31 is in horn mouth, when standard knot 21 is installed additional in jacking stock 3, can allow sliver 22 move along limit guide groove 31, it is easier to alignment, guide groove 31 also agrees with agreeing with groove 23 after alignment, facilitates upper-lower position The alignment of standard knot 21 agrees with, and has the fixation using next step standard knot 21.

Claims (9)

1. a kind of tower crane with wind-shielding function, including pedestal（1）, tower body（2）, jacking stock（3）, turntable（6）, tower top （7）, crane arm（5）, counter-jib（4）And balancing weight（11）, described tower body（2）By several standard knots（21）Build, The jacking stock（3）Can be in the standard knot（21）Upper movement, the turntable（6）It is arranged on the jacking stock（3）Top Portion, the tower top（7）It is arranged on the turntable（6）On, described turntable（6）On be provided with two relative liftings in position Protuberance（61）With balance protuberance（62）, described lifting protuberance（61）On be provided with crane arm slot（611）, it is described Crane arm slot（611）Interior sliding is provided with lifting turntable（612）, described lifting turntable（612）On be provided with lifting Rotating shaft（613）, described crane arm（5）It is arranged on described lifting rotating shaft（613）On, described balance protuberance（62）On set It is equipped with counter-jib slot（621）, described counter-jib slot（621）Interior sliding is provided with balance rotating platform（622）, described is flat Weigh turntable（622）On be provided with balance rotating shaft（623）, described counter-jib（4）It is arranged on described balance rotating shaft（623） On, described crane arm slot（611）With described counter-jib slot（621）Inside it is respectively arranged with and the lifting turntable （612）With the balance rotating platform（622）The electronic locking mechanism of first being engaged（614）With the electronic locking mechanism of second（624）, institute State crane arm（5）With the counter-jib（4）First Guyed Towers are respectively arranged with the top of top（55）With second Guyed Towers（48）, the tower Top（7）It is provided with first tubing sections device（73）With second tubing sections device（71）, the first Guyed Towers（55）With the first rope Rope stretching device（73）Between pass through first rope（74）Connection, the second Guyed Towers（48）With the second tubing sections device（71） Between pass through second rope（72）Connection, described jacking stock（3）Interior top is provided with counterweight lowering or hoisting gear（8）, the counterweight liter Falling unit（8）Can be in the standard knot（21）Inside is moved up and down, the counter-jib（4）On be provided with and the counterweight lifting fill Put（8）The counterweight slideway being engaged（41）, described counter-jib（4）On be additionally provided with the fixed balancing weight（11）Fixed dress Put（44）.
2. a kind of tower crane with wind-shielding function according to claim 1, it is characterized in that, described counterweight lowering or hoisting gear （8）Including lifter（81）, described lifter（81）On be provided with some drawstrings（82）, described drawstring（82）It is upper to set There is counterweight fixed station（83）, described counterweight fixed station（83）On be provided with fixed station slideway（84）, described fixed station slideway （84）Upper slip is provided with several balancing weight fixed mounts（85）, described counterweight slideway（41）On be provided with and the fixed station Slideway（84）The alignment device being engaged（43）.
3. a kind of tower crane with wind-shielding function according to claim 2, it is characterized in that, the alignment device（43）Including Electric rotation shaft（431）, described electric rotation shaft（431）On be provided with connecting plate（432）, described connecting plate（432）It is upper to set Have and the fixed station slideway（84）With the counterweight slideway（41）The connection slideway of cooperation（433）, described connecting plate（432） On be additionally provided with several electric expansion limited posts（434）, described fixed station（83）On be provided with and the electric expansion limit Position post（434）The spacing hole of matching（86）.
4. a kind of tower crane with wind-shielding function according to claim 3, it is characterized in that, described spacing hole（86）In cone Shape, is inwardly gradually reduced at opening.
5. a kind of tower crane with wind-shielding function according to claim 2, it is characterized in that, described balancing weight fixed mount （85）On be provided with protection framework（853）, motor（851）With electronic locked piece（852）.
6. a kind of tower crane with wind-shielding function according to claim 5, it is characterized in that, described protection framework（853） Inside fixed lobe is respectively arranged with biside plate（854）, described balancing weight（11）On be provided with and the fixed lobe （854）The fixed groove being engaged.
7. a kind of tower crane with wind-shielding function according to claim 1, it is characterized in that, the counterweight slideway（41）With institute State counter-jib（4）Between be provided with several supporting linkages（42）.
8. a kind of tower crane with wind-shielding function according to claim 1, it is characterized in that, described fixing device（44）Bag Include electric turnover frame（441）, described electric turnover frame（441）On be provided with telescopic cylinder（442）, described telescopic cylinder （442）On be provided with fixed dam（443）.
9. a kind of tower crane with wind-shielding function according to claim 1, it is characterized in that, described first rope（74）And institute The second rope stated（72）All twisted into for some steel wire ropes.
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CN109335977A (en) * 2018-12-10 2019-02-15 佛山科学技术学院 The wind-proof device of building crane
CN110104572B (en) * 2019-05-27 2024-04-16 宜兴市宜安电力工具制造有限公司 Top rotary suspension arm of electrified overhaul robot

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CN2793032Y (en) * 2005-03-17 2006-07-05 辽宁工程技术大学 Adjustable counterweight tower shaped crane
CN200946074Y (en) * 2006-09-14 2007-09-12 魏高林 Dynamic balancing tower crane
CN203284095U (en) * 2013-06-05 2013-11-13 山东淄建集团有限公司 Tower crane for cooling tower
CN203998711U (en) * 2014-08-25 2014-12-10 中铁十一局集团有限公司 Civil engineering tower crane

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