CN103171980A - Tower crane and launching beam and launching system thereof - Google Patents
Tower crane and launching beam and launching system thereof Download PDFInfo
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- CN103171980A CN103171980A CN2013101154835A CN201310115483A CN103171980A CN 103171980 A CN103171980 A CN 103171980A CN 2013101154835 A CN2013101154835 A CN 2013101154835A CN 201310115483 A CN201310115483 A CN 201310115483A CN 103171980 A CN103171980 A CN 103171980A
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Abstract
The invention provides a tower crane and a launching beam and a launching system thereof. The launching beam of the tower crane comprises a first beam (1) and a second beam (2), wherein a first fixing part (4) used for fixing the first beam (1) is arranged on the first beam (1); and a first end of the first beam (1) is pivotally connected with a first end of the second beam (2). According to the launching beam of the tower crane, the problem that the fixed launching beam and the lifting steel wire rope are interfered with each other at the minimum turning radius in the prior art can be solved.
Description
Technical field
The present invention relates to the tower crane field, more specifically, relate to a kind of tower crane and introduce crossbeam and introduction system.
Background technology
The following several introduction crossbeams of the many employings of the introduction system of tower crane of the prior art.
Fig. 1 shows the schematic diagram of a kind of introduction system of the prior art.What as shown in Figure 1, this tower crane adopted is upper introduction of method.Wherein, introduce the below that crossbeam 18 is arranged on the undersetting 14 of tower crane, the position of introducing between crossbeam 18 and undersetting 14 is uncontrollable.Introduce to be provided with slidably on crossbeam 18 and introduce dolly 13, the standard knot 15 of introduction is hung in to be introduced on dolly 13.When the suspension hook 16 that hoists is in the minimum radius place revolution of tower crane, introduction system shown in Figure 1 can't be avoided hoist rope and the problem of introducing crossbeam 18 interference, there is potential safety hazard, therefore can only increases tower machine minimum radius of turning, reduce its lifting performance to avoid interference.
The schematic diagram that schematic diagram when the introduction crossbeam that Fig. 2 shows another kind of introduction system of the prior art stretches out, Fig. 3 show introduction crossbeam in Fig. 2 when retracting.As shown in Figures 2 and 3, what this tower crane also adopted is upper introduction of method, its introduce crossbeam 18 by auxiliary device after introduction is completed relatively undersetting 14 retract left at parallel motion, to reduce the length of introduction system.Although this mode can avoid tower crane when working by a small margin, hoist rope and the problem of introducing the crossbeam interference, but in the telescopic process of this introduction system, need to repeatedly dismantle undersetting 14 and the bearing pin that is connected of introducing between crossbeam 18, complicated operation, and the flexible cover auxiliary device that needs, cost is very high, generally is only applicable to large-scale tower crane.
Summary of the invention
The present invention aims to provide a kind of tower crane and introduces crossbeam and introduction system, with the problem that solves the fixed introduction crossbeam of prior art when the minimum radius of turning and hoist rope interferes.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of introduction crossbeam of tower crane, comprising: first crossbeam is provided with on first crossbeam for fixing the first fixed part of first crossbeam; Second cross beam, the first end of first crossbeam is connected pivotly with the first end of second cross beam.
Further, introduce crossbeam and also comprise flexible connecting member, the first end of flexible connecting member is connected with second cross beam.
Further, introduce crossbeam and also comprise the second fixed part that is used for connecting flexible connecting member that is arranged on first crossbeam.
Further, but introduce the first articulated section and the second articulated section that crossbeam also comprises pivotable connection mutually, the first articulated section is arranged on the first end of first crossbeam, the second articulated section is arranged on the first end of second cross beam, and first crossbeam is connected with the second articulated section by the first articulated section pivotly with second cross beam.
Further, introduce crossbeam and also comprise the first bearing pin and the second bearing pin, the first articulated section be connected the articulated section by the first bearing pin be connected bearing pin and connect pivotly, the first bearing pin and the second bearing pin are separately positioned on the both sides up and down of first crossbeam or second cross beam.
Further, introduce the mounting part that crossbeam also comprises the second end that is arranged on second cross beam.
Further, introduce the wire rope pulley that crossbeam also comprises the second end that is arranged on second cross beam.
Further, flexible connecting member is folding pull bar, but pull bar comprises the sub-pull bar that a plurality of pivotables successively connect.
Further, flexible connecting member is loop chain.
According to a further aspect in the invention, provide a kind of introduction system of tower crane, comprised the introduction crossbeam, this introduction crossbeam is above-mentioned introduction crossbeam.
Further, introduction system also comprises the introduction dolly, introduces dolly and is slidably arranged on the introduction crossbeam.
In accordance with a further aspect of the present invention, a kind of tower crane is provided, comprise the introduction crossbeam, this introduction crossbeam is above-mentioned introduction crossbeam, introduce crossbeam and be connected with the undersetting of tower crane by its first fixed part, the second end of introducing the flexible connecting member of crossbeam removably is connected with undersetting.
Introduction crossbeam in the present invention is when folded state, and the outside of only having the part of first crossbeam to stretch out undersetting has been shortened the length of choosing of introducing crossbeam greatly, has reduced the minimum radius of turning of tower crane, has improved its lifting performance.In addition, the introduction crossbeam in the present invention also has characteristics simple in structure, easy to operate, that cost is low.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the schematic diagram of a kind of introduction system of the prior art;
Schematic diagram when the introduction crossbeam that Fig. 2 has schematically shown another kind of introduction system of the prior art stretches out;
Fig. 3 has schematically shown the schematic diagram when the introduction crossbeam in Fig. 2 is retracted:
Fig. 4 has schematically shown introduction crossbeam and the schematic diagram of introduction system when introducing operating mode in the first embodiment of the invention;
Fig. 5 has schematically shown introduction crossbeam and the schematic diagram of introduction system after introduction is complete in the first embodiment of the invention;
Fig. 6 has schematically shown introduction crossbeam and the schematic diagram of introduction system when introducing operating mode in the second embodiment of the invention;
Fig. 7 has schematically shown introduction crossbeam and the schematic diagram of introduction system after introduction is complete in the second embodiment of the invention;
Fig. 8 has schematically shown the folding process schematic diagram one of introduction crossbeam of the present invention and introduction system;
Fig. 9 has schematically shown the folding process schematic diagram two of introduction crossbeam of the present invention and introduction system;
Figure 10 has schematically shown the folding process schematic diagram three of introduction crossbeam of the present invention and introduction system;
Figure 11 has schematically shown the folding process schematic diagram four of introduction crossbeam of the present invention and introduction system; And
Figure 12 has schematically shown the folding process schematic diagram five of introduction crossbeam of the present invention and introduction system.
Reference numeral in figure: 1, first crossbeam; 2, second cross beam; 3, flexible connecting member; 4, the first fixed part; 5, the second fixed part; 6, the first articulated section; 7, the second articulated section; 8, the first bearing pin; 9, the second bearing pin; 10, mounting part; 11, wire rope pulley; 12, sub-pull bar; 13, introduce dolly; 14, undersetting: 15, standard knot; 16, the suspension hook that hoists; 17, introduce auxiliary suspension hook; 18, introduce crossbeam.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As a first aspect of the present invention, provide a kind of introduction crossbeam of tower crane.As shown in Figure 4 and Figure 5, this introduction crossbeam comprises: first crossbeam 1 is provided with on first crossbeam 1 for fixing the first fixed part 4 of first crossbeam 1; Second cross beam 2, the first end of first crossbeam 1 is connected pivotly with the first end of second cross beam 2.
Schematic diagram when Fig. 4 shows introduction crossbeam in the present invention be in extended configuration in introducing process.Fig. 5 shows introduction crossbeam in the present invention at the schematic diagram of introducing when being in folded state after complete.As shown in Figure 4, in introducing process, the relative first crossbeam 1 of second cross beam 2 turns to the state of level.After introduction is complete, as shown in Figure 5, make second cross beam 2 be pivotally lowered into folding position shown in Figure 5.
Like this, whole introduction crossbeam only has the part of first crossbeam 1 to stretch out the outside of undersetting 14, has greatly shortened the length of choosing of introducing crossbeam, and at this moment, only has when hoist rope arrives the right-hand member of first crossbeam 1 problem that just can interfere.Therefore, reduce the minimum radius of turning of tower crane, improved its lifting performance.In addition, the introduction crossbeam in the present invention also has characteristics simple in structure, easy to operate, that cost is low.
Preferably, introduce crossbeam and also comprise flexible connecting member 3, the first end of flexible connecting member 3 is connected with second cross beam 2.As shown in Figure 4, in introducing process, the relative first crossbeam 1 of second cross beam 2 turns to the state of level, and at this moment, the first end of flexible connecting member 3 is connected with second cross beam 2, and its second end is connected with the undersetting 14 of tower crane.So flexible connecting member 3 is in tension, to provide certain pulling force to second cross beam 2, determine the rigidity of first crossbeam 1 and second cross beam 2.When introduce complete after, as shown in Figure 5, can remove being connected between flexible connecting member 3 and undersetting 14, perhaps the centre of flexible connecting member 3 is taken apart, thereby makes second cross beam 2 under the effect of its deadweight, be pivotally lowered into folding position shown in Figure 5.
Preferably, please refer to Fig. 4 and Fig. 5, introduce crossbeam and also comprise the second fixed part 5 that is used for connecting flexible connecting member 3 that is arranged on first crossbeam 1.In the process of introducing, an end of flexible connecting member 3 can be connected with undersetting 14.When introduce complete after, please refer to Fig. 5, with the disassembling or the middle part of flexible connecting member 3 is disconnected from undersetting 14 of flexible connecting member 3, and the free end of the flexible connecting member 3 that will be connected with second cross beam 2 is connected with the second fixed part 5.Like this, can by the sagging angle of this part flexible connecting member 3 restriction second cross beam 2, can prevent that also second cross beam 2 from shaking and causing safety problem in the process that tower crane rotates.
Preferably, please refer to Fig. 4 and Fig. 5, but introduce the first articulated section 6 and the second articulated section 7 that crossbeam also comprises pivotable connection mutually, the first articulated section 6 is arranged on the first end of first crossbeam 1, the second articulated section 7 is arranged on the first end of second cross beam 2, and first crossbeam 1 is connected with the second articulated section 7 by the first articulated section 6 pivotly with second cross beam 2.
Preferably, please refer to Fig. 4 and Fig. 5, introduce crossbeam and also comprise the first bearing pin 8 and the second bearing pin 9, the first articulated section 6 be connected articulated section 7 by the first bearing pin 8 and be connected the pivotable connection of bearing pin 9, the first bearing pin 8 and the second bearing pin 9 are separately positioned on the both sides up and down of first crossbeam 1 or second cross beam 2.Preferably, the first articulated section 6 and the second articulated section 7 take the shape of the letter U, and first crossbeam 1 is connected with second cross beam respectively and is connected with the U-shaped bottom of the first articulated section 6 and the second articulated section 7, and two arms of U-shaped protrude from the both sides up and down of first crossbeam 1 and second cross beam 2.The first articulated section 6 be connected the arm of corresponding U-shaped of articulated section 7 respectively by the first bearing pin 8 and be connected the pivotable connection of bearing pin 9.Especially, the first bearing pin 8 be connected bearing pin 9 and be connected with the first articulated section 6 and the second articulated section 7 detouchables.
Like this, when needing second cross beam 2 to be rotated by position shown in Figure 4, can remove the first bearing pin 8 of the top that is positioned at first crossbeam 1, and the second bearing pin 9 is arranged on the first articulated section 6 and the second articulated section 7.When needing second cross beam 2 upwards to be rotated by position shown in Figure 4, can remove the second bearing pin 9 of the below that is positioned at first crossbeam 1, and the first bearing pin 8 is arranged on the first articulated section 6 and the second articulated section 7.When the position that second cross beam 2 need to be locked onto with first crossbeam 1 level, the first bearing pin 8 and the second bearing pin 9 can be installed simultaneously.Certainly, can also adopt the pivotable connection structure of other form between first crossbeam 1 and second cross beam 2.
Preferably, please refer to Fig. 4, introduce the mounting part 10 that crossbeam also comprises the second end that is arranged on second cross beam 2.Can utilize the suspension hook 16 that hoists of tower crane to hook second cross beam 2 by mounting part 10, like this, coordinate the installation situation of above-mentioned the first bearing pin 8 and the second bearing pin 9, operation hoists suspension hook Shang Xia 16, just second cross beam 2 can be rotated up or down.
Preferably, please refer to Fig. 4, introduce the wire rope pulley 11 that crossbeam also comprises the second end that is arranged on second cross beam 2.Preferably, the second end at first crossbeam 1 also is provided with the wire rope pulley (not shown).Preferably, introduce crossbeam and also comprise hauling rope and the reel (end illustrates) that is arranged on described first crossbeam 1, the first end of hauling rope with first direction on reel, the second end of hauling rope, is introduced dolly 13 and is connected with the second end of hauling rope on wire rope pulley 11 with the second direction opposite with first direction.When needs with introduction dolly 13 when introducing cross beam movement, can reel be rotated by actuating device or manual mode, thereby the introduction dolly 13 in Fig. 4 is moved to the left or to the right.
Preferably, in Fig. 4 and embodiment shown in Figure 5, flexible connecting member 3 is folding pull bars, but pull bar comprises the sub-pull bar 12 that a plurality of pivotables successively connect.Preferably, removably connect between adjacent two the sub-pull bars 12 of at least a portion.Preferably, in Fig. 6 and embodiment shown in Figure 7, flexible connecting member 3 is loop chains.Certainly, flexible connecting member 3 can be also other version.
As a second aspect of the present invention, please refer to Fig. 4 to Fig. 7, a kind of introduction system of tower crane is provided, comprise the introduction crossbeam, this introduction crossbeam is above-mentioned introduction crossbeam.
Preferably, introduction system also comprises introduces dolly 13, introduces dolly 13 and is slidably arranged on the introduction crossbeam.
Below in conjunction with Fig. 8 to Figure 12, the introduction crossbeam in the present invention and the working process of introduction system are described in detail.In Fig. 8 to Figure 12, use be that flexible connecting member 3 is folding pull bars.
The first fixed part 4 on the first crossbeam 1 of introduction crossbeam is connected with undersetting 14, like this, will introduce crossbeam and be installed on undersetting 14.One end of flexible connecting member 3 is connected (preferably, can being connected with the sidewall of undersetting 14) with undersetting 14, the other end is connected (for example, being connected with the middle part of second cross beam 2) with second cross beam 2, holds second cross beam 2 from side direction.
Standard knot to be introduced (end illustrates) is hung on the suspension hook 16 that hoists by introducing auxiliary suspension hook 17, and upwards is lifted to the position corresponding with introducing crossbeam by the suspension hook 16 that hoists.Then operating the suspension hook 16 that hoists transfers to standard knot on introduction dolly 13.Then, can make and introduce dolly 13 to left movement (for example, can pass through the operation to reel), thereby standard knot is delivered to preposition.
Arrive on position (being on first crossbeam 1) shown in Figure 9 when introducing dolly 13 motions, hang over the auxiliary suspension hook 17 of introduction on the suspension hook 16 that hoists and hook mounting part 10 on second cross beam 2.Then, the first bearing pin B is installed, and removes the second bearing pin 9, make suspension hook 16 upward movements that hoist, thereby second cross beam 2 is rotated counterclockwise around the first bearing pin 8.So flexible connecting member 3 becomes relaxed state shown in Figure 9 by tensioning state.
Then, please refer to Figure 10, flexible connecting member 3 and the coupling end of undersetting 14 are taken apart, perhaps two sub-pull bars 12 that certain of flexible connecting member 3 is adjacent are taken apart, and the free end of the flexible connecting member 3 that is connected with second cross beam 2 after taking apart and the second fixed part 5 in first crossbeam 1 couple together (such as can be by bearing pin etc.).
Further, the second bearing pin 9 is installed, and is removed the first bearing pin 8, the suspension hook 16 that hoists is moved downward, thereby second cross beam 2 is clockwise rotated around the second bearing pin 9.So flexible connecting member 3 through state shown in Figure 11, and finally becomes state shown in Figure 12 by state shown in Figure 10.
Preferably, the length of the sub-pull bar 12 of each of flexible connecting member 3 and pivot position thereof can be determined according to the geometric relationship between introduction state and folded state, to realize holding second cross beam 2 when the state of introduction, the requirement that makes second cross beam 2 and first crossbeam 1 keep horizontality, and when folded state, with the requirement that second cross beam 2 is fixed up, preferably, the length of each sub-pull bar 12 can be different.Especially, at state shown in Figure 12, flexible connecting member 3 is deformed into the right angle state, so that second cross beam 2 stably remains on vertical state, prevents it owing to the continuation such as rocking along clockwise rotating, and causes safety problem.In addition, also can prevent that second cross beam 2 from coming off from the high-altitude in the situation that the second bearing pin 9 meets accident, cause safety misadventure.
Are forms of loop chain or other structure for flexible connecting member 3, its service condition can with reference to above-mentioned folding pull bar working process, not repeat them here.
Of particular note, the flexible connecting member 3 of quovis modo both can adopt the form of the downward upset in Fig. 8 to Figure 12, also can adopt the resupinate form in Fig. 7.In resupinate embodiment, mounting part 10 can be arranged on the downside of second cross beam 2, so that the suspension hook 16 that hoisted hooks.Preferably, in resupinate embodiment, second cross beam 2 can be fixed to certain position of undersetting 14.
As a third aspect of the present invention, please refer to Fig. 4 to Figure 12, a kind of tower crane is provided, comprise the introduction crossbeam, this introduction crossbeam is above-mentioned introduction crossbeam, introduce crossbeam and be connected with the undersetting 14 of tower crane by its first fixed part 4, the second end of introducing the flexible connecting member 3 of crossbeam removably is connected with undersetting 14.
When the present invention can avoid tower crane to work by a small margin, the problem that hoist suspension hook 16 and introduction crossbeam are interfered can satisfy again and introduce under operating mode simultaneously, need to stretch out long requirement of increasing with smooth introduction by the introduction crossbeam.Introduction system in the present invention is rational in infrastructure, without specific (special) requirements, have make simple, with low cost, fitting operation convenient, safe and reliable characteristics.
In addition, no matter the present invention applicable to the tower crane of various models, is movable arm tower crane or horizontal arm tower machine, and perhaps Large Towers machine or small-sized tower machine all can adopt this scheme is used very extensively, is easy to promote, and has great practical value.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. the introduction crossbeam of a tower crane, is characterized in that, comprises
First crossbeam (1) is provided with the first fixed part (4) for fixing described first crossbeam (1) on described first crossbeam (1);
Second cross beam (2), the first end of described first crossbeam (1) is connected pivotly with the first end of described second cross beam (2).
2. introduction crossbeam according to claim 1, is characterized in that, described introduction crossbeam also comprises flexible connecting member (3), and the first end of described flexible connecting member (3) is connected with described second cross beam (2).
3. introduction crossbeam according to claim 2, is characterized in that, described introduction crossbeam also comprises the second fixed part (5) that is used for connecting described flexible connecting member (3) that is arranged on described first crossbeam (1).
4. introduction crossbeam according to claim 1, it is characterized in that, but described introduction crossbeam also comprises the first articulated section (6) and the second articulated section (7) of pivotable connection mutually, described the first articulated section (6) is arranged on the first end of described first crossbeam (1), described the second articulated section (7) is arranged on the first end of described second cross beam (2), and described first crossbeam (1) is connected with described the second articulated section (7) by described the first articulated section (6) pivotly with described second cross beam (2).
5. introduction crossbeam according to claim 4, it is characterized in that, described introduction crossbeam also comprises the first bearing pin (8) and the second bearing pin (9), described the first articulated section (6) be connected the second articulated section (7) by described the first bearing pin (8) be connected the second bearing pin (9) and connect pivotly, described the first bearing pin (8) and described the second bearing pin (9) are separately positioned on the both sides up and down of described first crossbeam (1) or described second cross beam (2).
6. introduction crossbeam according to claim 1, is characterized in that, described introduction crossbeam also comprises the mounting part (10) of the second end that is arranged on described second cross beam (2).
7. introduction crossbeam according to claim 1, is characterized in that, described introduction crossbeam also comprises the wire rope pulley (11) of the second end that is arranged on described second cross beam (2).
8. introduction crossbeam according to claim 2, is characterized in that, described flexible connecting member (3) is folding pull bar, but described pull bar comprises the sub-pull bar (12) that a plurality of pivotables successively connect.
9. introduction crossbeam according to claim 2, is characterized in that, described flexible connecting member (3) is loop chain.
10. the introduction system of a tower crane, comprise the introduction crossbeam, it is characterized in that, described introduction crossbeam is the described introduction crossbeam of any one in claim 1 to 9.
11. introduction system according to claim 10 is characterized in that, described introduction system also comprises introduces dolly (13), and described introduction dolly (13) is slidably arranged on described introduction crossbeam.
12. tower crane, comprise the introduction crossbeam, it is characterized in that, described introduction crossbeam is the described introduction crossbeam of any one in claim 1 to 9, described introduction crossbeam is connected with the undersetting (14) of described tower crane by its first fixed part (4), and the second end of the flexible connecting member of described introduction crossbeam (3) removably is connected with described undersetting (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115483.5A CN103171980B (en) | 2013-04-03 | 2013-04-03 | Tower crane and launching beam and launching system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115483.5A CN103171980B (en) | 2013-04-03 | 2013-04-03 | Tower crane and launching beam and launching system thereof |
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| Publication Number | Publication Date |
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| CN103171980A true CN103171980A (en) | 2013-06-26 |
| CN103171980B CN103171980B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310115483.5A Active CN103171980B (en) | 2013-04-03 | 2013-04-03 | Tower crane and launching beam and launching system thereof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103342300A (en) * | 2013-07-19 | 2013-10-09 | 中联重科股份有限公司 | Tower crane, as well as lead-in system and standard knot lead-in method thereof |
| CN103449317A (en) * | 2013-09-12 | 2013-12-18 | 中联重科股份有限公司 | Standard knot guiding device |
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| CN102491192A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Tower crane introducing platform structure |
| CN202322115U (en) * | 2011-12-06 | 2012-07-11 | 中联重科股份有限公司 | Tower crane and balancing boom thereof |
| CN103058070A (en) * | 2012-12-28 | 2013-04-24 | 徐州重型机械有限公司 | An introducing beam and a tower crane |
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| RU2225344C2 (en) * | 2001-11-08 | 2004-03-10 | Лунден Евгений Ефимович | Tower crane and method of its mounting and demounting |
| CN201313792Y (en) * | 2008-11-18 | 2009-09-23 | 江麓机电科技有限公司 | Lengthened hinge introducing platform of tower crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103342300A (en) * | 2013-07-19 | 2013-10-09 | 中联重科股份有限公司 | Tower crane, as well as lead-in system and standard knot lead-in method thereof |
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| Publication number | Publication date |
|---|---|
| CN103171980B (en) | 2015-07-15 |
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