CN102756978A - Foldable arm of crawler crane - Google Patents

Foldable arm of crawler crane Download PDF

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Publication number
CN102756978A
CN102756978A CN2012102517653A CN201210251765A CN102756978A CN 102756978 A CN102756978 A CN 102756978A CN 2012102517653 A CN2012102517653 A CN 2012102517653A CN 201210251765 A CN201210251765 A CN 201210251765A CN 102756978 A CN102756978 A CN 102756978A
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CN
China
Prior art keywords
arm
foldable arm
folding arm
folding
crawler crane
Prior art date
Application number
CN2012102517653A
Other languages
Chinese (zh)
Inventor
王铭铭
魏文儒
罗琰峰
杨文玉
张新和
李娜
高小茜
Original Assignee
辽宁抚挖重工机械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 辽宁抚挖重工机械股份有限公司 filed Critical 辽宁抚挖重工机械股份有限公司
Priority to CN2012102517653A priority Critical patent/CN102756978A/en
Publication of CN102756978A publication Critical patent/CN102756978A/en

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Abstract

The invention discloses a foldable arm of a crawler crane, which is mainly used for construction sites of wind power, nuclear power, petrochemical industry and the like, and has higher requirements on suspended load weight and height. The foldable arm of the crawler crane is formed by a foldable arm upper part, a foldable arm lower part, a foldable arm supporting frame, a foldable arm amplitude variation device and a backward leaning prevention device, wherein the foldable arm upper part is hinged with the foldable arm lower part; the root part of the foldable arm supporting frame is hinged with the bottom of the foldable arm upper part; the foldable arm upper part is connected with the upper part of the foldable arm supporting frame through a supporting frame pull plate; and the upper part of the foldable arm supporting frame is connected with the lower part of the foldable arm through an amplitude variation pull plate and the foldable arm amplitude variation device. According to the foldable arm of the crawler crane, the common effect of main amplitude variation and foldable arm amplitude variation can lift the whole foldable arm to leave the ground surface in an arm lifting process, so as to achieve the appointed working angle and radius. The foldable arm of the crawler crane solves the problems that when the height of the suspended load of the conventional crane is high and the weight is heavy, work equipment is heavy and the arm is difficult to automatically lift, and a super-long cantilever crane cannot walk when the weather condition is not good. The foldable arm of the crawler crane disclosed by the invention is a novel crane part which is efficient, is simple to operate and is easy to realize.

Description

A kind of crawler crane folds arm
One, technical field
The invention belongs to the crawler crane technical field, be specifically related to a kind of camp sites such as wind-powered electricity generation, nuclear power and petrochemical complex that are used for, hanging load carrying ability and bigger requirement is highly arranged, and the crawler crane that uses during on-the-spot no whipline folds arm.
Two, background technology
Hang in year construction in building, it is particularly important with the shortening engineering time to reduce executive cost.But present most of truss-like hoisting crane is when the long-armed operation of needs, and the principal arm operating mode of generally attaching most importance to, tower operating mode and light-duty arm operating mode can't realize from removing, need be by whipline.The master hangs and assists to be hung in the arm process and coordinate length consuming time and increase expense each other.And when working on carry over ground usually with jib dismounting, transport to new camp site after, re-assembly jib, play arm again, combined efficiency is extremely low.The hoisting crane that has can be realized from arm, but the jib insufficient strength, causes to hang that to carry performance bad, and requirement can not fulfil assignment.
Three, summary of the invention
The objective of the invention is problem, provide a kind of crawler crane to fold arm to the existence of conventional hoist operating mode.It can solve consuming time, the consumption power of traditional operating mode, the problem of consumption wealth fully, increases work efficiency and increase to hang to carry a performance.
The folding arm of crawler crane mainly constitutes folding arm top and folding arm lower hinge by folding arm top, folding arm bottom, folding arm support, folding arm luffing device and anti-squat system; Folding arm support root and folding arm upper bottom are hinged; Folding arm top is connected with folding arm support top through the support arm-tie, and folding arm support top connects folding arm bottom through luffing arm-tie, folding arm luffing device.
Folding arm top coxopodite of the present invention and folding arm bottom epimerite are hinged through bearing pin, can relatively rotate.Folding arm support root links to each other with folding arm top coxopodite through bearing pin, and is also rotatable; Folding top, arm top links to each other through arm-tie with folding arm support top, can make top and support when work, can keep fixed angle thus.Folding arm bottom epimerite links to each other with crane mast (A type frame) through the mast arm-tie.Luffing assembly pulley one side links to each other with the support top through arm-tie, and opposite side passes through winding steel rope above that and links to each other with assembly pulley on the bottom.Control system can change angle and the bottom and the ground-surface angle of upper and lower with this through steel rope in the folded arm luffing device of elevator on the control lower arm root and the steel rope of controlling on the main transformer width of cloth elevator.So just can solve long-armed from arm difficulty and long-armed the problem that can't walk.
The present invention through the combined action of the main transformer width of cloth and folding arm luffing, will fold arm integral body and mention disengaging ground in playing the arm process, arrive the operation angle and the radius of appointment.Solved before hoisting crane hang carry highly high, when weight is big, implement is heavy, is difficult to the problem from arm; And the overlength jib is not good in weather conditions, the problem that can not walk.Be a kind of efficient, simple to operate, the novel crane parts of realizing easily.
Four, description of drawings
Fig. 1 is a working state structure scheme drawing of the present invention;
Fig. 2 plays arm F/s scheme drawing for the present invention;
Fig. 3 plays arm subordinate phase scheme drawing for the present invention;
Fig. 4 plays arm phase III scheme drawing for the present invention;
Fig. 5 plays arm stage and folding arm walk scheme drawing for the present invention.
Five, the specific embodiment
The folding arm of crawler crane mainly is made up of folding arm top 1, folding arm bottom 2, folding arm support 3, folding arm luffing device 4, anti-squat system 5, support arm-tie 6, luffing arm-tie 7.The present invention mainly is in order to satisfy current construction requirement big, the highly high special operation condition that hangs load carrying ability, and this just requires whole boom system intensity high, and length overall is long.Therefore folding arm upper and lower part intensity is the same basically.Folding arm top 1 by special-purpose forehead arm 8, transition segment 9, some in segmentum intercalaris 10 and top coxopodite 11 constitute; Folding arm bottom 2 by with top coxopodite 11 pivotally attached bottom epimerite 12, some in segmentum intercalaris 10 form with the lower arm root 14 that links to each other with rotating platform of crane 15, on the segmentum intercalaris 10 assembly pulley 13 is housed in one therein.Assembly pulley 13 in the steel rope 17 pile warp bottoms that folding arm luffing device 4 is drawn by the folding arm luffing elevator of installing on the lower arm root 14 16 on the segmentum intercalaris 10 constitutes with the luffing assembly pulley 18 that is connected on the luffing arm-tie 7.Anti-squat system 5 one sides link to each other with otic placode 25 on the folding arm top coxopodite 11, and opposite side withstands on the otic placode 24 of folding arm bottom epimerite 12 after folding arm arrives control position.Anti-squat system 5 can adopt self-priming oil gas cylinder or mechanical spring formula structure.The folding arm upper and lower part of crawler crane remains in 3 ° in that to hang when carrying angle generally very little.Anti-squat system is worked at this moment.It also is for vibration and the wind that boom system is produced carries that the low-angle angle is left in the upper and lower part, plays resistant function.Mast 20 is arranged on rotating platform of crane 15, and the top of mast 20 connects folding arm bottom epimerite 12 through mast arm-tie 19.The assembly pulley on the main transformer width of cloth steel rope 21 pile warp turntables 15 that the main transformer width of cloth elevator 22 on the turntable 15 is drawn and the assembly pulley at mast 20 tops constitute main transformer width of cloth device.At the third wheel 29 on folding arm support 3 tops of hoisting cable 28 pile warps of drawing on the lifting elevator 27 on the turntable 15 and third wheel 30 connecting shackles on the folding arm top transition segment 9.Cross joint on folding arm top and can connect dolly 26 on 9, be used for the arm operation.There is supporting leg 23 at epimerite 12 places in folding arm bottom, are used for propping up on ground before level plays arm.
At an arm F/s dolly 26 is put into correct position, and supporting leg 23 is put down, make folding arm system be placed horizontally at ground.Folding arm support 3 lies on the folding arm top 1, is connected with top coxopodite 11 usefulness bearing pins.Mast 20 forwards assigned address to.Connect support arm-tie 6, luffing arm-tie 7 and mast arm-tie 19 then.Subordinate phase is pulled out hoisting cable 28, passes third wheel 29,30, according to multiplying power steel rope is wound on the suspension hook.Utilize whipline will fold arm support 3 again and removed, become 20 ° with ground approximately.The steel rope 17 that at this moment will fold in the arm luffing elevator 16 is pulled out, and according to multiplying power steel rope is wrapped in the folding arm luffing device 4.Slowly the folded arm luffing elevator 16 of folding is stretching with luffing steel rope 17, removes whipline, continues to receive steel rope 17, and is just exceptionally straight with support arm-tie 6 to folding arm top 1.Phase III is received the main transformer width of cloth steel rope 21 on the main transformer width of cloth elevator 22, with this mast 20 is rotated backward, folding arm bottom 2 being raised slowly.Put folding arm luffing steel rope 17 simultaneously, keep support 3 constant with the angle on folding arm top 1.Folding like this arm top 1 will be rotated around the hinge with folding arm bottom 2.Become 50 ° ~ 60 ° (different different) up to folding arm top 1 with folding arm bottom 2 angles according to the top and the bottom brachium.Stage stops folded arm luffing steel rope 17, continues to receive main transformer width of cloth steel rope 21, will fold the arm bottom and remove to become 85 ° with ground.Five-stage main transformer width of cloth elevator 22 braking, arm luffing steel rope 17 is folded in folding, will fold arm top 1 and rise to folding arm bottom 2 angles and become 177 °.Anti-squat system 5 is to control position.So far accomplish the arm process that rises of folding arm.Hoisting crane gets into folding arm operating mode operating condition.
When folding arm launches fully, jib length is very long, considers thus in the hoisting crane walking process, and the suffered wind of jib carries and the stability vibrated hoisting crane has adverse effect.In order to address this problem; When folding arm by working condition when walk is changed; Can let main transformer width of cloth elevator 22 brake; Put folding arm luffing steel rope 17, to folding arm top 1 and 2 one-tenth 50 ° ~ 60 ° of folding arm bottoms (different different according to the top and the bottom brachium, arm stage last current state is identical with rising).Reduced the length of folding arm so greatly, solved that wind carries and the problem of stability.

Claims (6)

1. a crawler crane folds arm; It is characterized in that: it mainly is made up of folding arm top (1), folding arm bottom (2), folding arm support (3), folding arm luffing device (4) and anti-squat system (5), and folding arm top (1) is hinged with folding arm bottom (2); Folding arm support (3) root and folding arm top (1) bottom-hinged; Folding arm top (1) is connected with folding arm support (3) top through support arm-tie (6), and folding arm support (3) top connects folding arm bottom (2) through luffing arm-tie (7), folding arm luffing device (4).
2. crawler crane according to claim 1 folds arm, it is characterized in that: folding arm top (1) is made up of special-purpose forehead arm (8), transition segment (9), some middle segmentum intercalaris (10) and top coxopodite (11); Folding arm bottom (2) by with top coxopodite (11) pivotally attached bottom epimerite (12), some in segmentum intercalaris (10) form with the lower arm root (14) that links to each other with rotating platform of crane (15), on the segmentum intercalaris (10) assembly pulley (13) is housed in one therein.
3. crawler crane according to claim 1 folds arm, it is characterized in that: assembly pulley (13) in steel rope (17) the pile warp bottom that the folding arm luffing elevator (16) that folding arm luffing device (4) is upward installed by lower arm root (14) is drawn on the segmentum intercalaris (10) and the luffing assembly pulley (18) that is connected on the luffing arm-tie (7) constitute.
4. crawler crane according to claim 1 folds arm; It is characterized in that: anti-squat system (5) one sides link to each other with otic placode (25) on the folding arm top coxopodite (11); Opposite side withstands on the otic placode (24) of folding arm bottom epimerite (12) after folding arm arrives control position.
5. crawler crane according to claim 4 folds arm, it is characterized in that: anti-squat system (5) adopts self-priming oil gas cylinder.
6. crawler crane according to claim 4 folds arm, it is characterized in that: anti-squat system (5) adopts mechanical spring formula structure.
CN2012102517653A 2012-07-20 2012-07-20 Foldable arm of crawler crane CN102756978A (en)

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CN2012102517653A CN102756978A (en) 2012-07-20 2012-07-20 Foldable arm of crawler crane

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108792964A (en) * 2018-07-06 2018-11-13 陈荣乾 A kind of head mast device of wind power generating set lifting
CN108792969A (en) * 2018-07-06 2018-11-13 陈荣乾 A kind of Lifting device of crane
CN108821135A (en) * 2018-07-06 2018-11-16 陈荣乾 A kind of hanging apparatus for Large-scale Wind Turbines installation
CN108821136A (en) * 2018-07-06 2018-11-16 陈荣乾 A kind of hanging apparatus for large-scale wind driven generator fan blade set

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1138005A (en) * 1995-03-22 1996-12-18 波丹公司 Automatic assembling hoisting machine with folding lazy arm
DE20105579U1 (en) * 2000-03-23 2001-10-11 Atecs Mannesmann Ag crane
EP1514832A1 (en) * 2003-09-15 2005-03-16 Jean-Marc Yerly Lifting device
CN1621334A (en) * 2003-05-13 2005-06-01 美国格若沃责任有限公司 Folding pinnacle bending device
CN1636856A (en) * 2004-01-09 2005-07-13 神钢起重机株式会社 Traveling crane and assembling/disassembling method thereof
CN201165453Y (en) * 2008-01-25 2008-12-17 徐州重型机械有限公司 Automatic lifting apparatus of caterpiller crane tower arm buffer rod
CN101687618A (en) * 2007-04-19 2010-03-31 特雷克斯德马格有限公司 Be used to erect the auxiliary device of upper and lower swinging mounting of the adjustable auxiliary boom of self-propelled crane
CN202704895U (en) * 2012-07-20 2013-01-30 辽宁抚挖重工机械股份有限公司 Articulated boom of crawler crane

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1138005A (en) * 1995-03-22 1996-12-18 波丹公司 Automatic assembling hoisting machine with folding lazy arm
DE20105579U1 (en) * 2000-03-23 2001-10-11 Atecs Mannesmann Ag crane
CN1621334A (en) * 2003-05-13 2005-06-01 美国格若沃责任有限公司 Folding pinnacle bending device
EP1514832A1 (en) * 2003-09-15 2005-03-16 Jean-Marc Yerly Lifting device
CN1636856A (en) * 2004-01-09 2005-07-13 神钢起重机株式会社 Traveling crane and assembling/disassembling method thereof
CN101687618A (en) * 2007-04-19 2010-03-31 特雷克斯德马格有限公司 Be used to erect the auxiliary device of upper and lower swinging mounting of the adjustable auxiliary boom of self-propelled crane
CN201165453Y (en) * 2008-01-25 2008-12-17 徐州重型机械有限公司 Automatic lifting apparatus of caterpiller crane tower arm buffer rod
CN202704895U (en) * 2012-07-20 2013-01-30 辽宁抚挖重工机械股份有限公司 Articulated boom of crawler crane

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN108792964A (en) * 2018-07-06 2018-11-13 陈荣乾 A kind of head mast device of wind power generating set lifting
CN108792969A (en) * 2018-07-06 2018-11-13 陈荣乾 A kind of Lifting device of crane
CN108821135A (en) * 2018-07-06 2018-11-16 陈荣乾 A kind of hanging apparatus for Large-scale Wind Turbines installation
CN108821136A (en) * 2018-07-06 2018-11-16 陈荣乾 A kind of hanging apparatus for large-scale wind driven generator fan blade set

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Application publication date: 20121031

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