CN102259801B - Folding arm support for truss arm crawler crane - Google Patents

Folding arm support for truss arm crawler crane Download PDF

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Publication number
CN102259801B
CN102259801B CN 201110108548 CN201110108548A CN102259801B CN 102259801 B CN102259801 B CN 102259801B CN 201110108548 CN201110108548 CN 201110108548 CN 201110108548 A CN201110108548 A CN 201110108548A CN 102259801 B CN102259801 B CN 102259801B
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China
Prior art keywords
arm
joint
tie
folding
platform
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Expired - Fee Related
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CN 201110108548
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Chinese (zh)
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CN102259801A (en
Inventor
张志�
蔡淳
张扬
邹瑞
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Zhejiang Sany Equipment Co Ltd
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Shanghai Sany Technology Co Ltd
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Priority to CN 201110108548 priority Critical patent/CN102259801B/en
Publication of CN102259801A publication Critical patent/CN102259801A/en
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Publication of CN102259801B publication Critical patent/CN102259801B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a folding arm support for a truss arm crawler crane. The folding arm support comprises an upper arm section and a lower arm section which are connected with each other through a middle section, wherein the middle section comprises an upper part and a lower part which are rotatably connected with each other; the upper arm section and the lower arm section are fixedly connected with the upper part and the lower part of the middle section respectively; connection structures between the upper arm section and a platform as well as the lower arm section and the platform at least comprise a first pulling plate arranged between the upper arm section and the platform and a second pulling plate arranged between the lower arm section and the platform; the lower ends of the first pulling plate and the second pulling plate are connected with a main variable-amplitude steel rope respectively; and the first pulling plate comprises an upper part internal pulling plate and a lower part internal pulling plate which are connected with each other. The folding arm support can successfully realize folding after working, so the gravity center is reduced, running of the whole arm support is realized, the arm support can be folded without being landed, running stability is enhanced, safety during transferring is guaranteed and transferring efficiency is improved.

Description

Folding arm support for truss arm crawler crane
Technical field
The present invention relates to a kind of jib structure, relate in particular to a kind of folding arm support for truss arm crawler crane.
Background technology
Crawler crane is as the important weight-lifting equipment in Modern Construction, play more and more important effect in the paces that China strengthens infrastructure energetically, its safety also is subject to paying close attention to more and more widely, and jib is as the main load assembly of crawler crane, and it is determining the safety of complete machine.Generally, particularly in the hoisting process of wind power generating set, crawler crane when carrying out transition, if complete machine walk with jib, higher due to the machine gravity position on the one hand, have the larger side risk of tumbling when transition; If adopt on the other hand the mode of removing jib, because disassembly and assembly time is longer, had a strong impact on transition efficient.
Summary of the invention
For the problem of above-mentioned existence, the purpose of this invention is to provide a kind of folding arm support for truss arm crawler crane, can realize the walking of full jib and need not to land and tear arm open, improved the stability of walking, safety is good, and efficient is high.
The objective of the invention is to be achieved through the following technical solutions:
A kind of folding arm support for truss arm crawler crane, wherein, comprise that described middle node comprises the upper and lower of mutual rotary connection by the interconnective upper arm joint of middle node and underarm joint, described upper arm joint, described underarm joint are captiveed joint with top, the bottom of described middle node respectively; Connection structure between described upper arm joint, described underarm joint and platform comprises the second arm-tie between the first arm-tie, described underarm joint and platform between described upper arm joint and platform at least, and the lower end of described the first arm-tie, described the second arm-tie is connected with main transformer width steel rope respectively; Described the first arm-tie comprises in interconnective top arm-tie in arm-tie and bottom.
Above-mentioned folding arm support for truss arm crawler crane, wherein, the contact surface of the upper and lower of described middle node is the diagonal plane of described middle node, rectangular or the trapezoidal or parallelogram in the cross section of described diagonal plane, comprise top margin and base, described top and described bottom rotate mutually by the main hinge that is arranged on described top margin, and described base is provided with secondary hinge.
Above-mentioned folding arm support for truss arm crawler crane, wherein, described secondary hinge is realized by bearing pin.
Above-mentioned folding arm support for truss arm crawler crane, wherein, in described top in arm-tie and described bottom arm-tie interconnect by flexible structure, when described upper arm joint rotates to the front lower place with respect to described underarm joint by described middle node, described flexible structure contacts with described base.
Above-mentioned folding arm support for truss arm crawler crane, wherein, described flexible structure is flexible arm-tie.
Above-mentioned folding arm support for truss arm crawler crane, wherein, the connection structure between described upper arm joint, described underarm joint and platform also comprises the anti-hypsokinesis oil cylinder of principal arm between described underarm joint and platform.
Compared with the prior art, beneficial effect of the present invention is:
(1) reduced center of gravity, realized the walking of full jib, need not to land and tear arm open;
Jib center of gravity when (2) reducing walking improves walking stability;
(3) guarantee safety in the transition process, improved transition efficient.
Description of drawings
Fig. 1 is the structural representation of folding arm support for truss arm crawler crane mode of operation of the present invention;
Fig. 2 is the structural representation after folding arm support for truss arm crawler crane of the present invention folds;
Fig. 3 is the lateral plan of the middle node of folding arm support for truss arm crawler crane of the present invention.
The specific embodiment
The invention will be further described below in conjunction with schematic diagram and concrete operations embodiment.
As shown in Figure 1 and Figure 2, folding arm support for truss arm crawler crane of the present invention comprises by the interconnective upper arm joint 9 of middle node 0 and underarm joint 10, middle node 0 comprises top 01 and the bottom 02 of mutual rotary connection, and upper arm joint 9, underarm joint 10 are captiveed joint with top 01, the bottom 02 of middle node 0 respectively.The connection structure of upper arm joint 9, underarm joint 10 and 1, platform comprises that at least the first arm-tie, the underarm of 1, upper arm joint 9 and platform save 10 and the second arm-tie of 1, platform, and the lower end of the first arm-tie, the second arm-tie is connected with main transformer width steel rope 2 respectively.The connection structure of upper arm joint 9, underarm joint 10 and 1, platform comprises that also the principal arm of 1, underarm joint 10 and platform prevents hypsokinesis oil cylinder 11.The first arm-tie comprises in interconnective top that in arm-tie 8 and bottom, arm-tie 4, the second arm-ties comprise arm-tie 3 outside the bottom.In the present embodiment, in top in arm-tie 8 and bottom arm-tie 4 interconnect by flexible structure 6, flexible structure 6 is flexible arm-tie.
Further, as shown in Figure 3, the top 01 of middle node 0 and the contact surface of bottom 02 are the diagonal plane of middle node 0, rectangular or the trapezoidal or parallelogram in the cross section of diagonal plane, comprise top margin and base, top 01 and bottom 02 rotate mutually by the main hinge 7 that is arranged on top margin, and the base is provided with secondary hinge 5, secondary hinge 5 realizes by bearing pin, and upper arm joint 9 saves 10 flexible structures 6 when rotating to the front lower place by middle node 0 with respect to underarm and contacts with the base.
In Fig. 1, folding arm support for truss arm crawler crane of the present invention is mode of operation, is angle a between jib and platform 1, this moment the first arm-tie tighten, the second arm-tie is comparatively lax, work complete need to be with arm support folding, concrete operation step comprises following:
(1) arm of lying prone: principal arm angle a makes the outer arm-tie 3 in jib bottom stressed from 85 degree rotations to 60 degree left and right, and principal arm prevents that hypsokinesis oil cylinder 11 need to be transferred to high pressure conditions simultaneously;
(2) folding arm: foldable arm rack twisted point 5 place's bearing pins are extracted by operatorless device, unclasp main transformer width steel rope 2, the beginning folding arm, 9 beginnings of upper arm joint are done relative rotary motion around main hinge 7, until flexible arm-tie 6 contacts with the top 01 of middle node 0 and the base in the cross section of the contact surface of bottom 02;
(3) folding in place: suspension hook is about to land, receive and rise main transformer width steel rope 2, the distance of guaranteeing the head of lifting hook pulley group and upper arm joint 9 is not less than 3800mm, continue to put main transformer width steel rope 2, the (see figure 2) until arm support folding puts in place, keep the angle of jib and vertical direction to be not less than 10 and spend, and the first arm-tie, main transformer width steel rope 2 be in stretching state, suspension hook is in free state and the liftoff 2000mm of being not less than;
(4) play arm: playing the arm process needs to carry out in strict accordance with the reverse order of said process.
In sum, the present invention can realize after hours folding of jib smoothly, has reduced center of gravity, realizes full jib walking, need not to land and tears arm open, improves walking stability, has guaranteed the safety in the transition process, has improved transition efficient.
Above specific embodiments of the invention are described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that this folding arm support for truss arm crawler crane is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.

Claims (4)

1. folding arm support for truss arm crawler crane, it is characterized in that, comprise by the interconnective upper arm joint of middle node (0) (9) and underarm joint (10), described middle node (0) comprises top (01) and bottom (02) of mutual rotary connection, and described upper arm joint (9), described underarm joint (10) are captiveed joint with top (01), bottom (02) of described middle node (0) respectively; Connection structure between described upper arm joint (9), described underarm joint (10) and platform comprises the second arm-tie between the first arm-tie between described upper arm joint (9) and platform, described underarm joint (10) and platform at least, and the lower end of described the first arm-tie, described the second arm-tie is connected with main transformer width steel rope (2) respectively; Described the first arm-tie comprises arm-tie (4) in arm-tie in interconnective top (8) and bottom; The contact surface of the upper and lower of described middle node (0) is the diagonal plane of described middle node (0), rectangular or the trapezoidal or parallelogram in the cross section of described diagonal plane, comprise top margin and base, described top and described bottom rotate mutually by the main hinge (7) that is arranged on described top margin, and described base is provided with secondary hinge (5); In arm-tie in described top (8) and described bottom, arm-tie (4) interconnects by flexible structure (6), and when described upper arm saves (9) and saves (10) and rotate to the front lower place with respect to described underarm by described middle node, described flexible structure (6) contacts with described base.
2. folding arm support for truss arm crawler crane according to claim 1, is characterized in that, described secondary hinge (5) is realized by bearing pin.
3. folding arm support for truss arm crawler crane according to claim 1, is characterized in that, described flexible structure (6) is flexible arm-tie.
4. folding arm support for truss arm crawler crane according to claim 1, it is characterized in that, the connection structure between described upper arm joint (9), described underarm joint (10) and platform also comprises the anti-hypsokinesis oil cylinder (11) of the principal arm between described underarm joint (10) and platform.
CN 201110108548 2011-04-28 2011-04-28 Folding arm support for truss arm crawler crane Expired - Fee Related CN102259801B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110108548 CN102259801B (en) 2011-04-28 2011-04-28 Folding arm support for truss arm crawler crane

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Application Number Priority Date Filing Date Title
CN 201110108548 CN102259801B (en) 2011-04-28 2011-04-28 Folding arm support for truss arm crawler crane

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CN102259801B true CN102259801B (en) 2013-06-05

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674169A (en) * 2012-06-08 2012-09-19 中联重科股份有限公司 Truss arm frame and folding method thereof as well as crane
DE102013002415B4 (en) * 2013-02-11 2019-04-25 Liebherr-Werk Ehingen Gmbh Method for erecting a long boom and crane

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1514832A1 (en) * 2003-09-15 2005-03-16 Jean-Marc Yerly Lifting device
CN201169486Y (en) * 2007-12-27 2008-12-24 山东送变电工程公司 Hinged joint combined holding rod
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
CN101962155A (en) * 2009-07-23 2011-02-02 中昇建机(南京)重工有限公司 Special lifting machine for lifting wind power generation equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2253575B1 (en) * 2009-05-20 2013-01-16 Manitowoc Crane Companies, LLC Crane backstay spreader

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1514832A1 (en) * 2003-09-15 2005-03-16 Jean-Marc Yerly Lifting device
CN201169486Y (en) * 2007-12-27 2008-12-24 山东送变电工程公司 Hinged joint combined holding rod
CN101962155A (en) * 2009-07-23 2011-02-02 中昇建机(南京)重工有限公司 Special lifting machine for lifting wind power generation equipment
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2010-269940A 2010.12.02

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Effective date of registration: 20160114

Address after: Eight in the 313028 Zhejiang city of Huzhou province Cao Zhen Village daily standard factory Auxiliary Building No. 2

Patentee after: Zhejiang Sany Equipment Co., Ltd.

Address before: 201202, room 6999, 205 Chuansha Road, Shanghai, Pudong New Area

Patentee before: Shanghai Sany Technology Co., Ltd.

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Granted publication date: 20130605

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CF01 Termination of patent right due to non-payment of annual fee