CN102674169A - Truss arm frame, folding method thereof and crane - Google Patents
Truss arm frame, folding method thereof and crane Download PDFInfo
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- CN102674169A CN102674169A CN2012101889080A CN201210188908A CN102674169A CN 102674169 A CN102674169 A CN 102674169A CN 2012101889080 A CN2012101889080 A CN 2012101889080A CN 201210188908 A CN201210188908 A CN 201210188908A CN 102674169 A CN102674169 A CN 102674169A
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- 238000010168 coupling process Methods 0.000 claims description 3
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- 230000005484 gravity Effects 0.000 abstract description 6
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- 238000010276 construction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
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- 210000000078 claw Anatomy 0.000 description 1
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Abstract
The invention provides a truss arm frame, a folding method thereof and a crane. The truss arm frame comprises an arm root part (10) and a folding part (20), wherein the arm root part (10) is connected with a vehicle body (40); the head part of the folding part (20) is provided with a head part pulling plate hanging point (21); the connecting part of the arm root (10) and the folding part (20) is provided with an arm root pulling plate hanging point (11) positioned on the arm root (10). According to the truss arm frame, the gravity center of the arm frame can be reduced when the crane is in transition, the transportation stability of the crane is improved, and the transportation cost is reduced.
Description
Technical field
The present invention relates to the jib folding of large-scale truss arm, in particular to a kind of truss arm jib and method for folding thereof, hoisting crane.
Background technology
Crawler crane of the prior art many times needs interior on construction ground transition, to adapt to the construction needs of different phase.Under the good situation of surface condition, crawler crane can be cut to through being with arm to walk slowly, and therefore can to its balance not cause excessive influence because the crawler crane walking is mild this moment, can cut to safely.
But generally speaking, the surface condition of camp site is relatively poor, and the jib of hoisting crane is longer, and center of gravity is higher; When hoisting crane moves, influenced by surface condition, hoisting crane jolts easily; The rocking property of jib of hoisting crane is big, the influence that jolted by hoisting crane, jib crank; The walking of lack of equilibrium, so hoisting crane band arm easily danger coefficient is big, is difficult to satisfy on-the-spot straight wiper arm transition.For the relatively poor situation of state of ground, often need break the truss arm is disassembled through main frame, after arriving the transition place, again jib is assembled, cause the construction period long, cost of wheeling is high, and transport efficacy is lower.
Summary of the invention
The present invention aims to provide a kind of truss arm jib and method for folding thereof, hoisting crane, can when hoisting crane is cut to, reduce the jib center of gravity, improves the hoisting crane transportation stability, reduces cost of wheeling.
To achieve these goals, according to an aspect of the present invention, a kind of truss arm jib is provided, has comprised arm roots and folding part, wherein, arm roots links to each other with car body; The head of folding part is provided with head arm-tie hanging point; The connecting bridge of arm roots and folding part is provided with the arm root arm-tie hanging point that is positioned on the arm roots.
Further; Be connected through the middle transition beam between arm roots and the folding part; The middle transition beam comprises first mistake bridging beam of captiveing joint with arm roots and the second mistake bridging beam of captiveing joint with the folding part; The first mistake bridging beam and second is crossed between the bridging beam and is connected through the bearing pin that is arranged in parallel, and arm root arm-tie hanging point is arranged at first and crosses on the bridging beam.
Further, the center-of-gravity position of the center-of-gravity position of middle transition beam and truss arm jib coincides.
Further, comprise on the arm roots with folding after the tight lock part that is provided with accordingly of the head of folding part.
Further, the head of folding part is provided with roller.
According to a further aspect in the invention; A kind of truss arm jib method for folding is provided; Truss arm jib comprises through connecting bearing pin bonded assembly arm roots and folding part; Arm roots comprises the arm root arm-tie hanging point that is arranged on the coupling end that is connected with the folding part, and method for folding comprises: truss arm jib is kept flat to playing the arm state, regulate the arm-tie that links to each other with truss arm jib and make it be connected to arm root arm-tie hanging point; Dismounting is positioned at the bearing pin that is connected on arm roots and top, junction, folding part, makes that the bearing pin that is connected through the bottom forms hinged between arm roots and the folding part; Through arm-tie with arm roots pull-up to folding part perpendicular to ground; Connect the folding part through hoist rope then, and the folding part is tightened to arm roots.
Further; Be connected through the middle transition beam between arm roots and the folding part; The middle transition beam comprises with arm roots bonded assembly first to be crossed bridging beam and crosses bridging beam with folding part bonded assembly second; Arm root arm-tie hanging point is arranged on first and crosses on the bridging beam, removes the bearing pin that is connected on arm roots and top, junction, folding part, makes between arm roots and the folding part to comprise for the pivotally attached step; Cross bridging beam and second with first and cross the bearing pin that is connected on bridging beam top and remove, make first cross bridging beam and second between the bridging beam through the bottom to be connected bearing pin hinged.
Further, connect the folding part, and the step that the folding part is tightened to arm roots is also comprised, when tightening up, continue to make arm-tie pulling arm roots, make the arm roots elevation angle continue to increase in steel rope pulling folding part through hoist rope.
Further, connect the folding part, and also comprise after the folding part being tightened to the step of arm roots, the head of folding part is locked on the arm roots through the tight lock part that is arranged on the arm roots through hoist rope.
In accordance with a further aspect of the present invention; A kind of hoisting crane is provided, has comprised car body and be arranged on the truss arm jib on the car body, the folding part of truss arm jib is connected to the mast that is arranged on the car body through arm-tie; The adjustable angle of mast, this truss arm jib are above-mentioned any truss arm jib.
Use technical scheme of the present invention, truss arm jib comprises arm roots and folding part, and wherein, arm roots links to each other with car body; The head of folding part is provided with head arm-tie hanging point; The connecting bridge of arm roots and folding part is provided with the arm root arm-tie hanging point that is positioned on the arm roots.Through the folding part and the arm roots of truss arm jib is folding; The length of truss arm jib in the time of can shortening crane transition reduces the center-of-gravity position of truss arm jib, thus when reducing crane transition to the requirement of ground flat degree; External environments such as minimizing wind speed are to the influence of jib; Improve stability and the safety of truss arm jib when crane transition, improve transition efficient, reduce cost of wheeling.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the first status architecture scheme drawing of truss arm jib according to an embodiment of the invention;
Fig. 2 shows the second status architecture scheme drawing of truss arm jib according to an embodiment of the invention;
Fig. 3 shows the third state structural representation of truss arm jib according to an embodiment of the invention;
Fig. 4 shows the four condition structural representation of truss arm jib according to an embodiment of the invention;
Fig. 5 shows the 5th status architecture scheme drawing of truss arm jib according to an embodiment of the invention; And
Fig. 6 shows the 6th status architecture scheme drawing of truss arm jib according to an embodiment of the invention.
The specific embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Like Fig. 1 to shown in Figure 6, according to embodiments of the invention, truss arm jib comprise arm roots 10, folding part 20 and be arranged on arm roots 10 and folding part 20 between with the middle transition beam 30 of connecting arm root 10 and folding part 20.Preferably, middle transition beam 30 is positioned at the center-of-gravity position of whole truss arm jib, and the center of gravity of the center of gravity of middle transition beam 30 and truss arm jib coincides.
First end and the car body 40 of arm roots 10 are hinged, can adjust the elevation angle size of whole truss arm.Second end of arm roots 10 is connected with middle transition beam 30.Position at arm roots 10 near root; Be provided with tight lock part 22; The position of tight lock part 22 is used for after folding part 20 is near arm roots 10 corresponding to the position of head on arm roots 10 of folding part 20,20 folding back, folding part, with folding part 20 lockings; Prevent that folding part 20 from swinging, improve the stability of truss arm jib.Tight lock part can be gripping mechanisms such as claw, perhaps bolt fastening structure etc.
First end of folding part 20 is captiveed joint with middle transition beam 30, and the second end top is provided with head arm-tie hanging point 21, and the end is provided with roller 22.Roller 22 can play arm or play support when folding at truss arm jib, suffered friction force in the time of also can reducing folding part 20 motions simultaneously.
In the middle of a unshowned embodiment; Can directly connect between folding part 20 and the arm roots 10 through bearing pin; Arm root arm-tie hanging point 11 is arranged on the coupling end end position that is connected with folding part 20 of arm roots 10; And be positioned at the top of arm roots 10, so that arm-tie 50 is connected with arm root arm-tie hanging point 11.Bearing pin between arm roots 10 and the folding part 20 is detachable; And can be between arm roots 10 and the folding part 20 through removing the method that is connected bearing pin on top; Form the pivotally attached connection structure; Can rotate with respect to arm roots 10 with assurance folding part 20, thereby folding part 20 is tightened up on arm roots 10.
According to another embodiment of the present invention, hoisting crane comprises car body 40, is arranged at mast 41 and truss arm jib on the car body 40, and truss arm jib is above-mentioned any truss arm jib.Connect through bearing pin between the arm roots 10 of truss arm jib and the folding part 20.Mast 41 is rotatably connected on the car body 40, and this connection mode for example is hinged.The top of mast 41 is connected with arm-tie 50 and steel rope respectively, and the other end of steel rope is connected on the winch 42, and winch 42 is arranged on the car body 40, can adjust the angle of inclination of mast 41.The other end of arm-tie 50 selectively is connected on the head arm-tie hanging point 21 of folding part 20 or on the arm root arm-tie hanging point 11 of arm roots 10.On car body 40, also be provided with retractable hoist rope 43.In the middle of present embodiment, hoisting crane is a crawler crane.
As shown in Figure 1, when needs are cut to operation to hoisting crane, at first truss arm jib is adjusted, truss arm jib is kept flat to playing the arm state, be about to truss arm jib and keep flat on the ground, roller 22 is supported on the ground.
In conjunction with referring to as shown in Figure 2, afterwards, need operation winch 42, mast 41 is leaned forward, at this moment, arm-tie 50 no longer receives mast 41 pulling force, and can be relaxed to midway location.Set point to arm-tie 50 is adjusted, and makes it be connected to arm root arm-tie hanging point 11 places.
In conjunction with referring to shown in Figure 3; After the position of arm-tie 50 being adjusted to arm root arm-tie hanging point 11 places; Superposed connection bearing pin between first tie-beam 31 of tie-beam 30 and second tie-beam 32 in the middle of removing; The bearing pin that is connected through the bottom is connected, thereby form the pivotally attached annexation.Then through winch 42 with mast 41 pull-ups to vertical direction, the elevation angle of arm roots 10 is increased gradually, the head of folding part 20 slowly slides on ground through roller 22, and draws close to arm roots 10 gradually.
In conjunction with referring to Fig. 4 and shown in Figure 5, continue adjustment winch 42, make steel rope constantly spur mast 41, make mast 41 hypsokinesis, continue pulling arm-tie 50 through mast 41, make the elevation angle of arm roots 10 continue to increase.Continue under the supporting role of roller 22 to sliding near arm roots 10 directions folding part 20.Constantly, perpendicular until folding part 20 and ground through the elevation angle of adjustment mast 41 adjusting arm roots 10.Then the folding and unfolding end of hoist rope 43 is connected the head of the folding part 20 of truss arm jib, and packs up hoist rope 43, folding part 20 is tightened up to arm roots 10.In the process that tighten up gradually folding part 20, continue to make mast 41 layback, the jib angle of arm roots 10 is become greatly gradually, tighten up on arm roots 10 until folding part 20.
In conjunction with referring to shown in Figure 6, after folding part 20 is drawn on arm roots 10, folding part 20 is locked on the arm roots 10 through tight lock part 22, making between folding part 20 and the arm roots 10 does not have relative motion, assurance in the process of walking, jib does not have and rocks.At this moment, because the position of jib height and center of gravity all is reduced to proper height, for example reduce to 1/2nd of former height; Therefore; Require significantly to reduce for ground-surface planeness, the hoisting crane operation of can cutting to, jib stability significantly improves; Ectocines such as the wind-force that receives also significantly reduce, and safety performance effectively improves.After arriving the appointment place, through above-mentioned opposite process, can jib be coupled together, reach operating condition, whole process convenient is quick.
Owing to need not the truss arm is continued to split, therefore, can reduce the transition time in a large number, increase work efficiency.
From above description, can find out that the above embodiments of the present invention have realized following technique effect: truss arm jib comprises arm roots and folding part, and wherein, arm roots links to each other with car body; The head of folding part is provided with head arm-tie hanging point; The connecting bridge of arm roots and folding part is provided with the arm root arm-tie hanging point that is positioned on the arm roots.Through the folding part and the arm roots of truss arm jib is folding; The length of truss arm jib in the time of can shortening crane transition reduces the center-of-gravity position of truss arm jib, thus when reducing crane transition to the requirement of ground flat degree; External environments such as minimizing wind speed are to the influence of jib; Improve stability and the safety of truss arm jib when crane transition, improve transition efficient, reduce cost of wheeling.
The above is merely 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 changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a truss arm jib is characterized in that, comprises arm roots (10) and folding part (20), wherein,
Said arm roots (10) links to each other with car body (40);
The head of said folding part (20) is provided with head arm-tie hanging point (21);
Said arm roots (10) is provided with the arm root arm-tie hanging point (11) that is positioned on the said arm roots (10) with the connecting bridge of said folding part (20).
2. truss arm jib according to claim 1; It is characterized in that; Be connected through middle transition beam (30) between said arm roots (10) and said folding part (20); Said middle transition beam (30) comprises first mistake bridging beam (31) of captiveing joint with said arm roots (10) and the second mistake bridging beam (32) of captiveing joint with said folding part (20); The said first mistake bridging beam (31) and said second is crossed between the bridging beam (32) and is connected through the bearing pin that is arranged in parallel, and said arm root arm-tie hanging point (11) is arranged at said first and crosses on the bridging beam (31).
3. truss arm jib according to claim 2 is characterized in that, the center-of-gravity position of the center-of-gravity position of said middle transition beam (30) and said truss arm jib coincides.
4. according to each described truss arm jib in the claim 1 to 3, it is characterized in that, comprise on the said arm roots (10) with folding after the tight lock part that is provided with accordingly of the head of said folding part (20).
5. according to each described truss arm jib in the claim 1 to 3, it is characterized in that the head of said folding part (20) is provided with roller (22).
6. truss arm jib method for folding; Said truss arm jib comprises through connecting bearing pin bonded assembly arm roots (10) and folding part (20); Said arm roots (10) comprises the arm root arm-tie hanging point (11) that is arranged on the coupling end that is connected with said folding part (20); It is characterized in that method for folding comprises:
Truss arm jib is kept flat to playing the arm state, regulate the arm-tie (50) that links to each other with truss arm jib and make it be connected to said arm root arm-tie hanging point (11);
Dismounting is positioned at the bearing pin that is connected on said arm roots (10) and top, junction, said folding part (20), makes that the bearing pin that is connected through the bottom forms hinged between arm roots (10) and folding part (20);
Through arm-tie (50) with arm roots (10) pull-up to the folding part (20) perpendicular to ground;
Connect folding part (20) through hoist rope (43) then, and folding part (20) are tightened to arm roots (10).
7. truss arm jib method for folding according to claim 6; It is characterized in that; Be connected through middle transition beam (30) between said arm roots (10) and said folding part (20); Said middle transition beam (30) comprises with said arm roots (10) bonded assembly first to be crossed bridging beam (31) and crosses bridging beam (32) with said folding part (20) bonded assembly second; Said arm root arm-tie hanging point (11) is arranged on said first and crosses on the bridging beam (31), and the bearing pin that is connected on said dismounting arm roots (10) and top, junction, folding part (20) makes between arm roots (10) and folding part (20) to comprise for the pivotally attached step; Cross bridging beam (31) and second with first and cross the bearing pin that is connected on bridging beam (32) top and remove, make first cross bridging beam (31) and second between the bridging beam (32) through the bottom to be connected bearing pin hinged.
8. truss arm jib method for folding according to claim 6; It is characterized in that; Saidly connect folding part (20), and the step that folding part (20) are tightened to arm roots (10) is also comprised, in steel rope pulling folding part (20) when tightening up through hoist rope (43); Continue to make arm-tie (50) pulling arm roots (10), make arm roots (10) elevation angle continue to increase.
9. according to claim 6 or 8 described truss arm jib method for folding; It is characterized in that; Said through hoist rope (43) connection folding part (20); And also comprise after folding part (20) be tightened to the step of arm roots (10), through the tight lock part that is arranged on the arm roots (10) head of folding part (20) is locked on the arm roots (10).
10. hoisting crane; Comprise car body (40) and be arranged on the truss arm jib on the car body (40); The folding part (20) of said truss arm jib is connected to the mast (41) that is arranged on the said car body (40) through arm-tie (50); The adjustable angle of said mast (41) is characterized in that, said truss arm jib is each described truss arm jib in the claim 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101889080A CN102674169A (en) | 2012-06-08 | 2012-06-08 | Truss arm frame, folding method thereof and crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101889080A CN102674169A (en) | 2012-06-08 | 2012-06-08 | Truss arm frame, folding method thereof and crane |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979440A (en) * | 2013-02-11 | 2014-08-13 | 利勃海尔-制品爱茵根有限公司 | A method of erecting a long crane jib |
| CN104340885A (en) * | 2014-10-30 | 2015-02-11 | 徐工集团工程机械股份有限公司 | Crawling crane and boom frame system thereof |
| WO2016058266A1 (en) * | 2014-10-17 | 2016-04-21 | 南通润邦重机有限公司 | Port mobile crane capable of being proof against storm wind and capable of overturning to transfer by means of mechanism design |
| JP2018199555A (en) * | 2017-05-26 | 2018-12-20 | コベルコ建機株式会社 | Jib retracting device and jib retracting method |
| CN109963807A (en) * | 2016-11-11 | 2019-07-02 | 伊特里克公司 | Offshore crane vessel and method of operation |
| CN110562863A (en) * | 2019-09-30 | 2019-12-13 | 浙江三一装备有限公司 | Auxiliary arm assembly and crane |
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| CN101062750A (en) * | 2004-01-09 | 2007-10-31 | 神钢起重机株式会社 | Mobile crane and its assembling/disassembling method |
| CN101898729A (en) * | 2010-08-17 | 2010-12-01 | 上海三一科技有限公司 | Method for lowering gravity center of crane arm support |
| CN102259801A (en) * | 2011-04-28 | 2011-11-30 | 上海三一科技有限公司 | Folding arm support for truss arm crawler crane |
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| GB981129A (en) * | 1962-10-05 | 1965-01-20 | John Allen & Sons Oxford Ltd | Improvements relating to crane booms |
| US3306470A (en) * | 1965-01-25 | 1967-02-28 | Robert A Green | Folding boom for mobile cranes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979440A (en) * | 2013-02-11 | 2014-08-13 | 利勃海尔-制品爱茵根有限公司 | A method of erecting a long crane jib |
| WO2016058266A1 (en) * | 2014-10-17 | 2016-04-21 | 南通润邦重机有限公司 | Port mobile crane capable of being proof against storm wind and capable of overturning to transfer by means of mechanism design |
| CN104340885A (en) * | 2014-10-30 | 2015-02-11 | 徐工集团工程机械股份有限公司 | Crawling crane and boom frame system thereof |
| CN109963807A (en) * | 2016-11-11 | 2019-07-02 | 伊特里克公司 | Offshore crane vessel and method of operation |
| US10875748B2 (en) | 2016-11-11 | 2020-12-29 | Itrec B.V. | Marine crane vessel and method of operation |
| JP2018199555A (en) * | 2017-05-26 | 2018-12-20 | コベルコ建機株式会社 | Jib retracting device and jib retracting method |
| CN110562863A (en) * | 2019-09-30 | 2019-12-13 | 浙江三一装备有限公司 | Auxiliary arm assembly and crane |
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Application publication date: 20120919 |