CN103058072A - Large luffing jib tower crane introduction mechanism - Google Patents

Large luffing jib tower crane introduction mechanism Download PDF

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Publication number
CN103058072A
CN103058072A CN201210590140XA CN201210590140A CN103058072A CN 103058072 A CN103058072 A CN 103058072A CN 201210590140X A CN201210590140X A CN 201210590140XA CN 201210590140 A CN201210590140 A CN 201210590140A CN 103058072 A CN103058072 A CN 103058072A
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China
Prior art keywords
introduction
tower crane
crossbeam
folding type
location
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Application number
CN201210590140XA
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Chinese (zh)
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CN103058072B (en
Inventor
潘志毅
王欣
滕儒民
曹旭阳
白朝阳
李儒风
王新
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大连理工大学
大连益利亚工程机械有限公司
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Priority to CN201210590140.XA priority Critical patent/CN103058072B/en
Publication of CN103058072A publication Critical patent/CN103058072A/en
Application granted granted Critical
Publication of CN103058072B publication Critical patent/CN103058072B/en

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Abstract

The invention relates to the field of engineering machinery, and discloses a large luffing jib tower crane introduction mechanism. The mechanism comprises a bent introduction cross beam, a pull rod I, a platform, an electric introduction trolley, a special lifting hook and a special lifting tool. The introduction trolley is driven by a three-in-one speed reduction motor; compared with the traditional introduction mechanism, the electric introduction trolley is always placed on the introduction cross beam due to demand of power supply; when being used for ejecting added sections, the special lifting tool lifts a standard section; and the special lifting tool and the standard section are placed on the electric introduction trolley in the standard section introduction process, so that the problem of difficult to introduce the standard section in the traditional introduction mechanism is solved; the introduction cross beam adopts a bent form, so that the problem that the introduction cross beam is easy to interfere with a lifting steel wire rope in the traditional introduction mechanism is effectively solved, the working range of a tower crane is widened, and the use safety of the tower crane is improved.

Description

A kind of large-scale arm tower crane is introduced mechanism
Technical field
The present invention relates to engineering machinery field, particularly a kind of large-scale arm tower crane is introduced mechanism.
Background technology
At present, China's high-rise building is in the stage of rising and developing, and the high-rise building altitude record of China all constantly is being refreshed every year.Many high-rise buildings are rised sheer from level ground after entering 21 century, and following 10 to 15 years, China will form huge high-rise building market.
Simultaneously, electric power resource is the basis of commercial production and people's lives, and China's oil, water resources lack, and therefore in quite over a long time, thermal electric generation is the emphasis of China's economic construction.The emphasis of construction of fire and electricity, difficult point are the installations of boiler, comprise boiler workshop steel structure, internal unit, peripheral facility.Boiler island is thermal power plant's high building except chimney, and volume is maximum in power construction, installation difficulty is large.
In order to satisfy the demand of high-rise building engineering and construction of fire and electricity, arm tower crane is towards large scale development, and work range is increasing, and body of the tower self steel structure is also more and more heavier.Along with the rising of building height, tower crane need to satisfy by the mode of lifting guide support adding further construction demand usually.
For large-scale arm tower crane, if adopt traditional introduction mechanism during lifting guide support adding then have two large problems.On the one hand, traditional introduction mechanism all adopts manpower to drive, but body of the tower volume and the quality of large-scale arm tower crane are large, and operating personal can't spur, and cause standard knot to introduce difficulty, and in unloading process, standard knot also is difficult for drawing.On the other hand, arm tower crane when the long by a small margin lower work of galianconism, tower crane self suspension hook easily with introduce crossbeam and interfere, cause the hoist rope wearing and tearing, bring a series of hidden danger to working security.In addition, introduce crossbeam oversize, all will make troubles for processing, assembling and transportation.
Figure 1 shows that traditional introduction structural scheme of mechanism.Formed by introduction crossbeam 1, pull bar 2, platform 3, introduction dolly 4, suspension hook 5.Supply to introduce carriage walking by the track that is formed by shaped steel on it.The shortcoming of this scheme is: take manpower to drive in (1) standard knot introducing process, when tower crane self steel structure is heavier, standard knot can't be introduced; (2) introduce crossbeam not bent, when arm tower crane during in the long by a small margin lower work of galianconism, suspension hook and hoist rope easily with introduce crossbeam and interfere, exist potential safety hazard; (3) the introduction crossbeam is long, is not easy to install and transportation.
Summary of the invention
The objective of the invention is: introduce the technical matters that mechanism exists for solving above-mentioned tradition, provide a kind of large-scale arm tower crane to introduce mechanism, can solve standard knot is difficult for introducing, the problem that workmen's processing safety and convenience are poor, can solve again tower crane when lower work by a small margin, hoist rope easily with introduce the crossbeam interference problem.
For achieving the above object, the technical solution used in the present invention is: provide a kind of large-scale arm tower crane to introduce mechanism, comprising: folding type is introduced crossbeam 6, pull bar I 7, platform 8, electronic introduction dolly 9, dedicated lifting hook 11, special hanger 10;
Described folding type is introduced crossbeam 6 and further comprised: front-axle beam 13, the back rest 14 connect by bearing pin 15 between the two, and removably connect between the two; Folding type is introduced crossbeam 6 upper ends and is provided with platform 8, and midway location is provided with the hinge ear, and the bottom is provided with electronic introduction dolly stroke limit plate, and folding type is introduced horizontal stroke 6 and is bolted with electronic introduction dolly stroke limit plate, can dismantle;
Described pull bar I 7 one ends and tower crane lower support seat 12 are hinged, and it is hinged that the other end and folding type are introduced crossbeam 6;
Described electronic introduction dolly 9 is for the actuating device of introducing standard knot 20, further comprises: 2 three-in-one reducing motors 16, trolley frame 17, driving wheel 18, flower wheel 19; Three-in-one reducing motor 16 is connected with trolley frame 17 by flange, and driving wheel 18 is connected with axle drive shaft on the reducing motor by flat key, and flower wheel 19 is positioned on the trolley frame 17 by end cap, antifriction-bearing box, threaded shaft and circular nut, and trolley frame 17 is provided with positioning groove;
Described special hanger 10 is to lift by crane standard knot 20 and be placed on device on the electronic introduction dolly 9, further comprises: cylindrical piece 23, location side plate 22, otic placode 21; The inboard, upper end of location side plate 22 is provided with cylindrical piece 23, and the outside is provided with suspension hook suspended structure 26, and cylindrical piece 23 is placed in trolley frame 17 positioning grooves, and both sides are by location side plate 22 location;
Described dedicated lifting hook 11 is the structures of lifting by crane special hanger 10 and standard knot 20, and it hangs on the suspension hook suspended structure 26.
The invention has the beneficial effects as follows: (1) introduction dolly of the present invention adopts three-in-one reducing motor to drive, and introduces mechanism with tradition and compares, and electronic introduction dolly must be placed on all the time and introduce on the crossbeam owing to needing power supply; The lifting standard knot was placed on special hanger and standard knot on the electronic introduction dolly in the standard knot introducing process when specialty suspender was used for lifting guide support adding, had solved traditional introduction mechanism standard joint and had been difficult for the problems such as introduction.(2) the present invention introduces in the crossbeam mode that adopts bending, efficiently solves that tradition introduces that mechanism introduces crossbeam easily and the problem such as hoist rope interference, has enlarged the operating range of tower crane, has improved the tower crane safety in utilization.
Description of drawings
Fig. 1 is that tradition is introduced structural scheme of mechanism
Fig. 2 is that a kind of large-scale arm tower crane of the present invention is introduced the structural representation of mechanism.
Fig. 3 is that a kind of large-scale arm tower crane of the present invention is introduced the electronic introduction dolly lateral plan of mechanism.
Fig. 4 is the folding type introduction crossbeam schematic diagram that a kind of large-scale arm tower crane of the present invention is introduced mechanism.
Fig. 5 is that a kind of large-scale arm tower crane of the present invention is introduced the electronic introduction dolly block diagram of mechanism.
Fig. 6 is that a kind of large-scale arm tower crane of the present invention is introduced the special hanger schematic diagram of mechanism.
Fig. 7 is that a kind of large-scale arm tower crane of the present invention is introduced the dedicated lifting hook schematic diagram of mechanism.
Fig. 8 is that a kind of large-scale arm tower crane of the present invention is introduced the standard knot introducing process schematic diagram of mechanism.
Fig. 9 is the rear schematic diagram of folding type introduction crossbeam bending that a kind of large-scale arm tower crane of the present invention is introduced mechanism.
The accompanying drawing sign: 1-introduces crossbeam, the 2-pull bar, and the 3-platform, 4-introduces dolly, 5-suspension hook, the 6-folding type is introduced crossbeam, 7-pull bar I, 8-platform I, the electronic introduction dolly of 9-, 10-special hanger, 11-patent suspension hook, 12-undersetting, 13-front-axle beam, the 14-back rest, the 15-bearing pin, the three-in-one reducing motor of 16-, 17-trolley frame, 18-driving wheel, the 19-flower wheel, the 20-standard knot, the 21-otic placode, 22-locates side plate, the 23-cylindrical piece, the adjustable drag-line of 24-, 25-stock, 26-suspension hook suspended structure.
The specific embodiment
A kind of large-scale arm tower crane of the present invention is introduced mechanism, and comprising: folding type is introduced crossbeam 6, pull bar I 7, platform 8, electronic introduction dolly 9, dedicated lifting hook 11, special hanger 10;
Described folding type is introduced crossbeam 6 and further comprised: front-axle beam 13, the back rest 14 connect by bearing pin 15 between the two, and removably connect between the two; Folding type is introduced crossbeam 6 upper ends and is provided with platform 8, and midway location is provided with the hinge ear, and the bottom is provided with electronic introduction dolly stroke limit plate, and folding type is introduced horizontal stroke 6 and is bolted with electronic introduction dolly stroke limit plate, can dismantle;
Described pull bar I 7 one ends and tower crane lower support seat 12 are hinged, and it is hinged that the other end and folding type are introduced crossbeam 6;
Described electronic introduction dolly 9 is for the actuating device of introducing standard knot 20, further comprises: 2 three-in-one reducing motors 16, trolley frame 17, driving wheel 18, flower wheel 19; Three-in-one reducing motor 16 is connected with trolley frame 17 by flange, and driving wheel 18 is connected with axle drive shaft on the reducing motor by flat key, and flower wheel 19 is positioned on the trolley frame 17 by end cap, antifriction-bearing box, threaded shaft and circular nut, and trolley frame 17 is provided with positioning groove;
Described special hanger 10 is to lift by crane standard knot 20 and be placed on device on the electronic introduction dolly 9, further comprises: cylindrical piece 23, location side plate 22, otic placode 21; The inboard, upper end of location side plate 22 is provided with cylindrical piece 23, and the outside is provided with suspension hook suspended structure 26, and cylindrical piece 23 is placed in trolley frame 17 positioning grooves, and both sides are by location side plate 22 location;
Described dedicated lifting hook 11 is the structures of lifting by crane special hanger 10 and standard knot 20, and it hangs on the suspension hook suspended structure 26.
The present invention is described in detail below in conjunction with drawings and Examples.
With reference to Fig. 2-3, introduce structural scheme of mechanism for the large-scale arm tower crane of one embodiment of the present of invention, mainly comprise: folding type is introduced crossbeam 6, pull bar I 7, platform I 8, electronic introduction dolly 9, special hanger 10, dedicated lifting hook 11.Folding type is introduced crossbeam 6 and is adopted bearing pin to be connected with undersetting 12 bottoms of tower crane, and adopts bearing pin to be connected by pull bar 7 one ends with introducing crossbeam, and the other end adopts bearing pin to be connected with undersetting 12 tops hinge ear, forms and stablizes force structure.
With reference to Fig. 4, to introduce the folding type of mechanism for the large-scale arm tower crane of one embodiment of the present of invention and introduce the crossbeam schematic diagram, folding type is introduced crossbeam 6 and is formed by connecting by bearing pin 15 by front-axle beam 13 and the back rest 14, is convenient to dismounting and transportation.
With reference to Fig. 5, introduce the electronic introduction dolly schematic diagram of mechanism for the large-scale arm tower crane of one embodiment of the present of invention, combined by two three-in-one reducing motors 16, trolley frame 17, driving wheel 18 and flower wheels 19.Drive driving wheel 18 by three-in-one reducing motor 16, drive flower wheel 19, control is introduced dolly and is travelled at folding type introduction crossbeam 6 tracks, thus the introduction of control criterion joint 20.
With reference to Fig. 6, introduce the special hanger schematic diagram of mechanism for the large-scale arm tower crane of one embodiment of the present of invention, mainly combined by otic placode 21, location side plate 22 and cylindrical piece 23.
With reference to Fig. 8, for the large-scale arm tower crane of one embodiment of the present of invention is introduced mechanism standard joint introducing process schematic diagram.Standard knot 20 is connected with four otic placodes of special hanger 10 by four adjustable drag-lines 24, then sling dedicated lifting hook 11, special hanger 10 and a joint standard knot 20 of crane hook, penetrate and introduce crossbeam 6 front ends, special hanger 10 and standard knot 20 are placed on the electronic introduction dolly 9, three-in-one reducing motor 16 drives electronic introduction dolly 9 standard knot 20 is introduced stock 25 inside, finishes at last the installation of standard knot 20.
With reference to Fig. 9, introduce the folding type of mechanism for the large-scale arm tower crane of one embodiment of the present of invention and introduce the rear schematic diagram of crossbeam bending.When arm tower crane is worked by a small margin in galianconism length, suspension hook is easily introduced crossbeam 6 interference with folding type, utilize this moment tower crane self suspension hook and drag-line fixed bend folding to introduce crossbeam 6 front-axle beams, then be connected by what the dismounting folding type was introduced crossbeam 6 top rods 7 and front-axle beam 13 that top is connected bearing pin 15 between bearing pin, the back rest 13 and the front-axle beam 14, slowly put down at last front-axle beam 13, until vertical state.Simultaneously, folding type is introduced crossbeam 6 top rods 7 and is also slowly put down, until state as shown in the figure.At this moment, electronic introduction dolly 9 should be positioned on the track of the back rest 14.
Above content is the further description of the present invention being done in conjunction with optimal technical scheme, can not assert that the implementation of invention only limits to these explanations.Concerning the general technical staff of the technical field of the invention, under the prerequisite that does not break away from design of the present invention, can also make simple deduction and replacement, all should be considered as protection scope of the present invention.

Claims (1)

1. one kind large-scale arm tower crane is introduced mechanism, it is characterized in that, described a kind of large-scale arm tower crane is introduced mechanism and comprised: folding type is introduced crossbeam (6), pull bar I (7), platform (8), electronic introduction dolly (9), dedicated lifting hook (11), special hanger (10);
Described folding type is introduced crossbeam (6) and is further comprised: front-axle beam (13), the back rest (14), and connect by bearing pin (15) between the two, folding type is introduced crossbeam (6) upper end and is provided with platform (8), midway location is provided with the hinge ear, the bottom is provided with electronic introduction dolly stroke limit plate, and folding type is introduced crossbeam (6) and is bolted with electronic introduction dolly stroke limit plate;
Described pull bar I (7) one ends and tower crane lower support seat (12) are hinged, and it is hinged that the other end and folding type are introduced crossbeam (6);
Described electronic introduction dolly (9) further comprises: 2 three-in-one reducing motors (16), trolley frame (17), driving wheel (18), flower wheel (19); Three-in-one reducing motor (16) is connected with trolley frame (17) by flange, driving wheel 18 is connected with axle drive shaft on the reducing motor by flat key, flower wheel (19) is positioned on the trolley frame (17) by end cap, antifriction-bearing box, threaded shaft and circular nut, and trolley frame (17) is provided with positioning groove;
Described special hanger (10) further comprises: cylindrical piece (23), location side plate (22), otic placode (21); The inboard, upper end of location side plate (22) is provided with cylindrical piece (23), and the outside is provided with suspension hook suspended structure (26), and cylindrical piece (23) is placed in trolley frame (17) positioning groove, and both sides are by location side plate (22) location;
Described dedicated lifting hook (11) hangs on the suspension hook suspended structure (26).
CN201210590140.XA 2012-12-31 2012-12-31 Large luffing jib tower crane introduction mechanism CN103058072B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104563492A (en) * 2015-01-14 2015-04-29 李先强 Vertical lifting structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3532066A1 (en) * 1985-09-09 1987-03-12 Dieter Boehm Tower crane
CN202245832U (en) * 2011-10-11 2012-05-30 中联重科股份有限公司 Inner climbing tower crane, and climbing rod and introducing cross beam thereof
CN102491192A (en) * 2011-12-15 2012-06-13 中联重科股份有限公司 Tower crane introducing platform structure
CN202508791U (en) * 2012-03-15 2012-10-31 沈阳三洋建筑机械有限公司 Novel tower section lead-in device
CN102815627A (en) * 2012-08-06 2012-12-12 四川省第三建筑工程公司 Automatic traction system for large-scale tower-type crane standard-knot removal and installation
CN202625671U (en) * 2012-06-29 2012-12-26 中联重科股份有限公司 Standard knot introduction platform of tower frame and tower frame provided with the same
CN203112385U (en) * 2012-12-31 2013-08-07 大连理工大学 Large movable arm tower crane introduction mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3532066A1 (en) * 1985-09-09 1987-03-12 Dieter Boehm Tower crane
CN202245832U (en) * 2011-10-11 2012-05-30 中联重科股份有限公司 Inner climbing tower crane, and climbing rod and introducing cross beam thereof
CN102491192A (en) * 2011-12-15 2012-06-13 中联重科股份有限公司 Tower crane introducing platform structure
CN202508791U (en) * 2012-03-15 2012-10-31 沈阳三洋建筑机械有限公司 Novel tower section lead-in device
CN202625671U (en) * 2012-06-29 2012-12-26 中联重科股份有限公司 Standard knot introduction platform of tower frame and tower frame provided with the same
CN102815627A (en) * 2012-08-06 2012-12-12 四川省第三建筑工程公司 Automatic traction system for large-scale tower-type crane standard-knot removal and installation
CN203112385U (en) * 2012-12-31 2013-08-07 大连理工大学 Large movable arm tower crane introduction mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104563492A (en) * 2015-01-14 2015-04-29 李先强 Vertical lifting structure

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