CN202704895U - Articulated boom of crawler crane - Google Patents

Articulated boom of crawler crane Download PDF

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Publication number
CN202704895U
CN202704895U CN 201220352716 CN201220352716U CN202704895U CN 202704895 U CN202704895 U CN 202704895U CN 201220352716 CN201220352716 CN 201220352716 CN 201220352716 U CN201220352716 U CN 201220352716U CN 202704895 U CN202704895 U CN 202704895U
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China
Prior art keywords
folding arm
arm
articulated boom
boom
folding
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CN 201220352716
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Chinese (zh)
Inventor
王铭铭
魏文儒
罗琰峰
杨文玉
张新和
李娜
高小茜
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Liaoning Fuwa Heavy Industry Machinery Co Ltd
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Liaoning Fuwa Heavy Industry Machinery Co Ltd
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Priority to CN 201220352716 priority Critical patent/CN202704895U/en
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Abstract

The utility model discloses an articulated boom of a crawler crane, which is mainly applied to construction sites of wind power, nuclear power, petrochemical engineering and the likes with high requirements on high hoisting load and hoisting height. The articulated boom mainly comprises an articulated boom upper part, an articulated boom lower part, an articulated boom strut, an articulated boom amplitude variation device and a back tilting prevention device, wherein the articulated boom upper part is articulated with the articulated boom lower part, the articulated boom upper part is connected with the articulated boom strut through a strut pulling plate, and the upper part of the articulated boom strut is connected with the articulated boom lower part through an amplitude variation pulling plate and the articulated boom amplitude variation device. According to the articulated boom, during the boom lifting process, the articulated boom is lifted up from the ground completely to reach the specified operation angle and radius. In the past, when a crane is in a state of high hoisting height and heavy load, operating equipment is very heavy and hardly can lift the boom by itself, and the crane with an overlength boom cannot run favorably in bad weather; by the articulated boom provided by the utility model, these problems are solved. The articulated boom provided by the utility model is a novel crane part which is very efficient, simple to operate and easy to implement.

Description

A kind of crawler crane folding arm
One, technical field
The utility model belongs to the crawler crane technical field, is specifically related to a kind ofly hanging load carrying ability and larger requirement is highly arranged for camp sites such as wind-powered electricity generation, nuclear power and petrochemical compleies, and the on-the-spot crawler crane folding arm that uses during without whipline.
Two, background technology
Hang in year construction in building, reduce executive cost and shorten the engineering time particularly important.But the most Lattice 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 to be by whipline.Main hanging with auxiliary hanging coordinated length consuming time and increase expense mutually in playing the arm process.And when working on carry over ground usually with jib dismounting, transport to new camp site after, re-assembly jib, again play arm, combined efficiency is extremely low.The hoisting crane that has can realize from arm, but jib insufficient strength causes and hangs that to carry performance bad, requirement can not fulfil assignment.
Three, summary of the invention
The purpose of this utility model is the problem that exists for the conventional hoist operating mode, and a kind of crawler crane folding arm is provided.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 crawler crane folding arm mainly is made of folding arm top, folding arm bottom, folding arm support, folding arm luffing device and anti-squat system, folding arm top and folding arm lower hinge; Folding arm support root and folding arm upper bottom are hinged; Folding arm top is connected with folding arm support top by the support arm-tie, and folding arm support top connects the folding arm bottom through luffing arm-tie, folding arm luffing device.
Folding arm of the present utility model top coxopodite and folding arm bottom epimerite are hinged by bearing pin, can relatively rotate.Folding arm support root links to each other with folding arm top coxopodite by bearing pin, and is also rotatable; Top, folding arm top links to each other by arm-tie with folding arm support top, can make thus top and support can keep fixed angle when work.Folding arm bottom epimerite links to each other with crane mast (A type frame) by the mast arm-tie.Luffing assembly pulley one side links to each other with the support top by arm-tie, and opposite side links to each other with assembly pulley on the bottom by the steel rope that twines thereon.Control system can by the steel rope on the steel rope in the folded arm luffing device of elevator on the control lower arm root and the control main transformer width of cloth elevator, change the angle of upper and lower and the angle on bottom and ground with this.So just can solve long-armed from arm difficulty and long-armed the problem that can't walk.
The utility model by the combined action of the main transformer width of cloth and folding arm luffing, is mentioned disengaging ground with folding arm integral body in playing the arm process, arrive operating angle and the radius of appointment.Solved before hoisting crane hang carry highly high, when weight is large, implement is heavy, be difficult to from the problem of arm; And the overlength jib is not good in weather conditions, the problem that can not walk.A kind of efficient, simple to operate, the Novel crane parts of realizing easily.
Four, description of drawings
Fig. 1 is working state structure scheme drawing of the present utility model;
Fig. 2 is that the utility model plays arm F/s scheme drawing;
Fig. 3 is that the utility model plays arm subordinate phase scheme drawing;
Fig. 4 is that the utility model plays arm phase III scheme drawing;
Fig. 5 is that the utility model plays arm quadravalence section and folding arm walk scheme drawing.
Five, the specific embodiment
The crawler crane folding arm mainly is made 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 utility model mainly is in order to satisfy current construction requirement large, the highly high special operation condition that hangs load carrying ability, and this just requires whole boom system intensity high, and overall length is long.Therefore folding arm upper and lower part intensity is substantially the same.Folding arm top 1 is made of special-purpose forehead arm 8, transition segment 9, some middle nodes 10 and top coxopodite 11; Assembly pulley 13 is equipped with on the middle node 10 therein by forming with hinged bottom epimerite 12, some middle nodes 10 and the lower arm root 14 that links to each other with rotating platform of crane 15 of top coxopodite 11 in folding arm bottom 2.Assembly pulley 13 on the steel rope 17 pile warp bottom middle nodes 10 that folding arm luffing device 4 is drawn by the folding arm luffing elevator 16 of installing on the lower arm root 14 and the luffing assembly pulley 18 that is connected on the luffing arm-tie 7 consist of.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.Crawler crane folding arm upper and lower part 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.At rotating platform of crane 15 mast 20 is arranged, the top of mast 20 connects folding arm bottom epimerite 12 by mast arm-tie 19.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 consist of main transformer width of cloth device.At the third wheel 29 on hoisting cable 28 pile warp folding arm supports 3 tops that the lifting elevator 27 on the turntable 15 is drawn 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 12 places at folding arm bottom epimerite, 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 the folding arm system level be positioned over 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.Then connect support arm-tie 6, luffing arm-tie 7 and mast arm-tie 19.Subordinate phase is pulled out hoisting cable 28, passes third wheel 29,30, according to multiplying power with wirerope-winding to suspension hook.The recycling whipline has been removed folding arm support 3, becomes 20 ° with ground approximately.At this moment the steel rope 17 in the folding arm luffing elevator 16 is pulled out, according to multiplying power with wirerope-winding in folding arm luffing device 4.Slowly folding arm luffing elevator 16 is stretching with variable-amplitude steel wire rope 17, removes whipline, continues to receive steel rope 17, and 1 is just exceptionally straight with support arm-tie 6 to folding arm top.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 simultaneously folding arm variable-amplitude steel wire rope 17, keep support 3 constant with the angle on folding arm top 1.Folding arm top 1 will be rotated around the hinge with folding arm bottom 2 like this.Until folding arm top 1 becomes 50 ° ~ 60 ° (different different according to the top and the bottom brachium) from folding arm bottom 2 angles.The quadravalence section stops folded arm variable-amplitude steel wire rope 17, continues to receive main transformer width of cloth steel rope 21, and the folding arm bottom is removed to become 85 ° with ground.Five-stage main transformer width of cloth elevator 22 braking, folding arm variable-amplitude steel wire rope 17 rises to folding arm top 1 with folding arm bottom 2 angles and becomes 177 °.Anti-squat system 5 is to control position.So far finish the arm process that rises of folding arm.Hoisting crane enters 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 is changed to walk by working condition, can allow main transformer width of cloth elevator 22 brake, put folding arm variable-amplitude steel wire rope 17, to folding arm top 1 and folding arm bottom 2 one-tenth 50 ° ~ 60 ° (different different according to the top and the bottom brachium, arm quadravalence section last current state is identical with rising).So greatly reduced the length of folding arm, solved that wind carries and the problem of stability.

Claims (6)

1. crawler crane folding arm, it is characterized in that: it mainly is made 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 by 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 folding arm according to claim 1 is characterized in that: folding arm top (1) is made of special-purpose forehead arm (8), transition segment (9), some middle nodes (10) and top coxopodite (11); Assembly pulley (13) is equipped with on the middle node (10) therein by forming with hinged bottom epimerite (12), some middle nodes (10) and the lower arm root (14) that links to each other with rotating platform of crane (15) of top coxopodite (11) in folding arm bottom (2).
3. crawler crane folding arm according to claim 1 is characterized in that: the assembly pulley (13) on steel rope (17) the pile warp bottom middle node (10) that folding arm luffing device (4) is drawn by the upper folding arm luffing elevator (16) of installing of lower arm root (14) and be connected to luffing assembly pulley (18) formation on the luffing arm-tie (7).
4. crawler crane folding arm according to claim 1, 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 folding arm according to claim 4, it is characterized in that: anti-squat system (5) adopts self-priming oil gas cylinder.
6. crawler crane folding arm according to claim 4 is characterized in that: anti-squat system (5) employing mechanical spring formula structure.
CN 201220352716 2012-07-20 2012-07-20 Articulated boom of crawler crane Active CN202704895U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220352716 CN202704895U (en) 2012-07-20 2012-07-20 Articulated boom of crawler crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220352716 CN202704895U (en) 2012-07-20 2012-07-20 Articulated boom of crawler crane

Publications (1)

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CN202704895U true CN202704895U (en) 2013-01-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756978A (en) * 2012-07-20 2012-10-31 辽宁抚挖重工机械股份有限公司 Foldable arm of crawler crane
CN103708362A (en) * 2013-12-27 2014-04-09 浙江三一装备有限公司 Novel crawler crane inner folding type arm frame and crane
CN105584942A (en) * 2015-11-24 2016-05-18 徐州重型机械有限公司 Crane arm and crane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756978A (en) * 2012-07-20 2012-10-31 辽宁抚挖重工机械股份有限公司 Foldable arm of crawler crane
CN103708362A (en) * 2013-12-27 2014-04-09 浙江三一装备有限公司 Novel crawler crane inner folding type arm frame and crane
CN103708362B (en) * 2013-12-27 2015-12-09 浙江三一装备有限公司 Articulated boom and hoisting crane in a kind of crawler crane
CN105584942A (en) * 2015-11-24 2016-05-18 徐州重型机械有限公司 Crane arm and crane

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