CN102556857A - Truss arm abutting structure, truss arm comprising same and truss arm crane - Google Patents
Truss arm abutting structure, truss arm comprising same and truss arm crane Download PDFInfo
- Publication number
- CN102556857A CN102556857A CN2011104123990A CN201110412399A CN102556857A CN 102556857 A CN102556857 A CN 102556857A CN 2011104123990 A CN2011104123990 A CN 2011104123990A CN 201110412399 A CN201110412399 A CN 201110412399A CN 102556857 A CN102556857 A CN 102556857A
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- CN
- China
- Prior art keywords
- truss arm
- chord member
- jib
- truss
- connecting panel
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
Abstract
The invention provides a truss arm abutting structure, a truss arm comprising the truss arm abutting structure and a truss arm crane. The truss arm abutting structure provided by the invention comprises a first arm support chord member, a second arm support chord member and a connecting piece, wherein the connecting piece is respectively connected with the first arm support chord member and the second arm support chord member, and the end face of the first arm support chord member is contacted with the end face of the second arm support chord member, thus a contact surface is formed. The truss arm abutting structure provided by the invention is connected by adopting a connecting plate, no hinge lug is required to be manufactured, large-scale mould making can be avoided, the truss arm abutting structure is applicable to limited quantity of large-scale truss arm making, and no large-scale process placing-building tool is required to be made; after a mounting surface is processed, assembly is more convenient; and the truss arm abutting structure provided by the invention adopts a new contact surface connecting type, the head is not excessively welded, and quality hidden trouble caused by welding can be avoided.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of truss arm docking structure has the truss arm of this truss arm docking structure and the lattice-boom crane with above-mentioned truss arm.
Background technology
Truss arm of the prior art docks with the hinge ear and then connects, and when processing and fabricating truss arm, the form that generally adopts the mold tooling pendulum to take is welded every joint arm, after welding, satisfies the assembling requirement of truss jib.
A kind of truss arm docking structure of the prior art has been shown among Fig. 6, between first jib 21 and second jib 22, has connected through hinge ear 23.The thin portion enlarged drawing of the truss arm docking structure butted part among Fig. 6 has been shown among Fig. 7, and hinge ear 23 is welded on the truss arm through weld part 24, connects through hinge ear 23 between two truss arms.
Because ultra-large type truss arm is generally the production of limited amount, does not have the batch manufacturing demand, in the manufacturing process of ultra-large type truss arm, mainly has following shortcoming:
1) purchase cost of every abutment joint is high;
2) when the welding abutment joint, the frock cost of making is high, and Occupation coefficient is low, and is uneconomical;
3) welding job amount is big, and especially to high-strength high welding, welding technique requires high; General enterprise makes, and is difficult to meet design requirement;
4) there is certain deformation in postwelding, the assembling difficulty.
Summary of the invention
The present invention provides a kind of truss arm docking structure, uses attaching parts need make specially and welding hinge ear to solve existing truss arm docking structure, brings purchase cost, frock cost height, the problem that welding capacity is big.
The present invention realizes through following technical scheme: a kind of truss arm docking structure comprises: the first jib chord member, second jib chord member and the attaching parts; Wherein, attaching parts is connected with the second jib chord member with the first jib chord member respectively, and the end face of the first jib chord member contacts with the end face of the second jib chord member, forms contact surface.
Further, the first jib chord member has cavity with the end that contacts of the second jib chord member, and attaching parts is positioned at cavity.
Further; Attaching parts is a connecting panel; Has first knock hole respectively on the end of the first jib chord member and the second jib chord member; Two ends of connecting panel have second knock hole, and fastener passes first knock hole respectively and with second knock hole on the connecting panel the first jib chord member and the second jib chord member is connected with connecting panel.
Further, connecting panel is a polylith, the polylith connecting panel is folded mutually be arranged in juxtaposition with the inwall of cavity near.
Further, connecting panel is three, and the length that connecting panel is middle one is longer than two of both sides
Further, the connecting panel two ends have arc sections.
Further, on contact surface, form the surface working face.
Further, on contact surface, process at the whole postwelding of truss arm.
According to a further aspect in the invention, a kind of truss arm is provided, comprises at least two joint jibs, this at least two joints jib connects through above-mentioned truss arm docking structure
According to a further aspect in the invention, a kind of lattice-boom crane is provided, comprises the truss arm, this truss arm is above-mentioned truss arm.
Through technique scheme, major advantage of the present invention is: adopt connecting panel to connect, a large amount of Mold Makings has been avoided in the making that need not to cut with scissors ear, and the large-scale truss arm that is fit to limit the quantity of is made, and need not make a large amount of technology pendulum and take frock; After the attachment face processing, assemble convenient; New-type contact surface formula type of attachment of the present invention, head does not have unnecessary welding, has avoided because the hidden danger of quality that welding brings.
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 scheme drawing of the truss arm docking structure of one embodiment of the present of invention;
Fig. 2 shows the schematic side view of the truss arm docking structure blank area of one embodiment of the present of invention;
Fig. 3 shows the schematic top plan view of the truss arm docking structure blank area of one embodiment of the present of invention;
Fig. 4 shows the scheme drawing of the truss arm docking structure tip side face portion of one embodiment of the present of invention;
Fig. 5 shows the scheme drawing of the truss arm docking structure joint contact surfaces part of one embodiment of the present of invention;
Fig. 6 shows the scheme drawing of a kind of truss arm docking structure of the prior art; And
Fig. 7 shows the scheme drawing of the blank area of a kind of truss arm docking structure of the prior art.
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.
The truss arm docking structure of one embodiment of the present of invention has been shown among Fig. 1, has comprised: the first jib chord member 1 and the second jib chord member 2.The enlarged diagram of blank area has been shown among Fig. 2, and middle connecting plate 3 places first jib 1 and second jib, 2 inside.Fastener passes knock hole 5 will be respectively with an end and the first jib chord member 1 of connecting panel 3, and the other end of connecting panel 3 is connected with the second jib chord member 2.So through connecting panel 3 the first jib chord member 1 and the second jib chord member 2 are linked together, the end face of the first jib chord member 1 contacts with the end face of the second jib chord member 2, form contact surface 4.
On the contact surface 4 of two jib chord members, carry out surface working, or postwelding processing, to guarantee the assembly technology requirement.
As other embodiment, connecting panel 3 also can be other attaching parts, and for example whippletree links together the jib chord member.
As shown in Figure 3, can find out that in birds-eye view connecting panel 3 places the inside of the first jib chord member 1 and the second jib chord member 2, can be that polylith connecting panel 3 uses jointly, the polylith connecting panel is folded mutually be arranged in juxtaposition with the inwall of cavity near, for example be to be arranged side by side three.Preferably, middle one length is longer than two of both sides.As shown in Figure 4, the contact surface 4 of jib can weld, and adopts postwelding processing.
Comparison diagram 5 and Fig. 7 can find out the difference of truss arm docking structure of the present invention and truss arm docking structure of the prior art.A kind of docking structure of the present invention has been shown among Fig. 5, has had direct contact surface 4.And truss arm docking structure of the prior art need weld the hinge ear, is connected to each other with the hinge ear again.
According to truss arm docking structure of the present invention, have following beneficial effect:
1) the hinge ear at cancellation truss arm two ends bears axial force through the butt joint of the contact surface between chord member extruding.
2) jib interface adopts postwelding processing, has guaranteed the assembly technology requirement.
3) quality of production process is controlled in no a large amount of welding requirements easily.
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 docking structure is characterized in that, comprising: the first jib chord member (1), second jib chord member (2) and the attaching parts;
Wherein, said attaching parts is connected with the said second jib chord member (2) with the said first jib chord member (1) respectively, and the end face of the said first jib chord member (1) docks with the end face of the said second jib chord member (2), forms contact surface (4).
2. truss arm docking structure according to claim 1 is characterized in that, the end that contacts of said first jib chord member (1) and the said second jib chord member (2) has cavity, and said attaching parts is positioned at said cavity.
3. truss arm docking structure according to claim 2; It is characterized in that; Said attaching parts is connecting panel (3); Has first knock hole (5) respectively on the end of said first jib chord member (1) and the said second jib chord member (2); Two ends of said connecting panel (3) have second knock hole, and fastener passes said first knock hole (5) respectively and with said second knock hole on the said connecting panel (3) said first jib chord member (1) and the said second jib chord member (2) is connected with said connecting panel (3).
4. truss arm docking structure according to claim 3 is characterized in that said connecting panel (3) is a polylith, the said connecting panel of polylith (3) is folded mutually be arranged in juxtaposition with the inwall of said cavity near.
5. truss arm docking structure according to claim 4 is characterized in that said connecting panel (3) is three, and the length that said connecting panel (3) is middle one is longer than two of both sides.
6. truss arm docking structure according to claim 3 is characterized in that, said connecting panel (3) two ends have arc sections.
7. truss arm docking structure according to claim 1 is characterized in that, goes up at said contact surface (4) and forms the surface working face.
8. truss arm docking structure according to claim 7 is characterized in that, said contact surface (4) is in the whole postwelding processing of said truss arm.
9. a truss arm comprises at least two joint jib and truss arm docking structures, it is characterized in that, said at least two joint jibs connect through each described truss arm docking structure of claim 1～8.
10. a lattice-boom crane comprises the truss arm, it is characterized in that, said truss arm is the described truss arm of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104123990A CN102556857A (en) | 2011-12-12 | 2011-12-12 | Truss arm abutting structure, truss arm comprising same and truss arm crane |
| PCT/CN2012/081950 WO2013086878A1 (en) | 2011-12-12 | 2012-09-25 | Truss arm butt-joint structure, and truss arm and truss arm crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104123990A CN102556857A (en) | 2011-12-12 | 2011-12-12 | Truss arm abutting structure, truss arm comprising same and truss arm crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102556857A true CN102556857A (en) | 2012-07-11 |
Family
ID=46403714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104123990A Pending CN102556857A (en) | 2011-12-12 | 2011-12-12 | Truss arm abutting structure, truss arm comprising same and truss arm crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102556857A (en) |
| WO (1) | WO2013086878A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086878A1 (en) * | 2011-12-12 | 2013-06-20 | 中联重科股份有限公司 | Truss arm butt-joint structure, and truss arm and truss arm crane with same |
Citations (9)
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| EP0928769A1 (en) * | 1998-01-12 | 1999-07-14 | Potain | Jib element for tower crane |
| EP0974546A1 (en) * | 1998-07-24 | 2000-01-26 | Potain | Assembly device for metallic lattice members |
| CN2361609Y (en) * | 1998-12-31 | 2000-02-02 | 昆明重工(集团)股份有限公司 | Connecting joint for jib of tower crane |
| EP1418151A1 (en) * | 2002-11-08 | 2004-05-12 | Potain | Chassis with divices for articulations for outriggers |
| CN201809083U (en) * | 2009-12-29 | 2011-04-27 | 长沙中联重工科技发展股份有限公司 | Tower crane, rod piece assembled type standard knot and rod piece used for assembled type standard knot |
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| CN202369288U (en) * | 2011-12-12 | 2012-08-08 | 中联重科股份有限公司 | Truss arm butt-joint structure, truss arm with same and truss arm crane |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU662480A1 (en) * | 1976-07-08 | 1979-05-15 | Государственный Институт По Проектированию Технологии Монтажа Предприятий Химической Промышленности | Detachable connection of three-dimensional sections of load-handling devices |
| DE3842726C3 (en) * | 1988-12-19 | 2001-01-18 | Mannesmann Ag | Multi-section bolt connection |
| CN2209668Y (en) * | 1994-07-25 | 1995-10-11 | 波丹公司 | Mountable or dismountable device of assembling metal structural members and frames |
| CN201506688U (en) * | 2009-10-10 | 2010-06-16 | 上海立尔机械有限公司 | Lower contact for jib of tower crane |
| CN102556857A (en) * | 2011-12-12 | 2012-07-11 | 中联重科股份有限公司 | Truss arm abutting structure, truss arm comprising same and truss arm crane |
-
2011
- 2011-12-12 CN CN2011104123990A patent/CN102556857A/en active Pending
-
2012
- 2012-09-25 WO PCT/CN2012/081950 patent/WO2013086878A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0928769A1 (en) * | 1998-01-12 | 1999-07-14 | Potain | Jib element for tower crane |
| EP0974546A1 (en) * | 1998-07-24 | 2000-01-26 | Potain | Assembly device for metallic lattice members |
| CN2361609Y (en) * | 1998-12-31 | 2000-02-02 | 昆明重工(集团)股份有限公司 | Connecting joint for jib of tower crane |
| EP1418151A1 (en) * | 2002-11-08 | 2004-05-12 | Potain | Chassis with divices for articulations for outriggers |
| CN201809083U (en) * | 2009-12-29 | 2011-04-27 | 长沙中联重工科技发展股份有限公司 | Tower crane, rod piece assembled type standard knot and rod piece used for assembled type standard knot |
| CN201914865U (en) * | 2010-11-17 | 2011-08-03 | 昆山三一机械有限公司 | Pin shaft easy to assemble and disassemble |
| CN201942449U (en) * | 2010-12-31 | 2011-08-24 | 中建七局安装工程有限公司 | Foldable suspension arm for construction of building |
| CN202063653U (en) * | 2011-02-15 | 2011-12-07 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane and arm support of same |
| CN202369288U (en) * | 2011-12-12 | 2012-08-08 | 中联重科股份有限公司 | Truss arm butt-joint structure, truss arm with same and truss arm crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086878A1 (en) * | 2011-12-12 | 2013-06-20 | 中联重科股份有限公司 | Truss arm butt-joint structure, and truss arm and truss arm crane with same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013086878A1 (en) | 2013-06-20 |
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Application publication date: 20120711 |