CN102491195A - Reinforcing jib frame structure of truss-jib crane and crane comprising reinforcing jib frame structure - Google Patents

Reinforcing jib frame structure of truss-jib crane and crane comprising reinforcing jib frame structure Download PDF

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Publication number
CN102491195A
CN102491195A CN2011104338282A CN201110433828A CN102491195A CN 102491195 A CN102491195 A CN 102491195A CN 2011104338282 A CN2011104338282 A CN 2011104338282A CN 201110433828 A CN201110433828 A CN 201110433828A CN 102491195 A CN102491195 A CN 102491195A
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China
Prior art keywords
jib
pair
crane
support
platform
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Pending
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CN2011104338282A
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Chinese (zh)
Inventor
韩凤磷
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Shanghai Sany Technology Co Ltd
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Shanghai Sany Technology Co Ltd
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Priority to CN2011104338282A priority Critical patent/CN102491195A/en
Publication of CN102491195A publication Critical patent/CN102491195A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a reinforcing jib frame structure of a truss-jib crane and a crane comprising the reinforcing jib frame structure. The reinforcing jib frame structure comprises a platform and a jib frame, and the jib frame is hinged with the platform, wherein the reinforcing jib frame structure comprises a pair of supports and a pair of supporting jibs, the pair of supports is symmetrically connected with two sides of the platform, and the pair of supporting jibs is symmetrically connected with two sides of the jib frame; one end of a left one of the pair of the supporting arms is connected with the left side of the jib frame and the other end of the left one of the support arms is connected with the right support at the left side of the platform, and one end of a right one of the pair of supporting arms is connected with the right side of the jib frame and the other end of the right one of the supporting arms is connected with the right support at the right side of the platform; and the pair of supporting arms are trusses. The reinforcing jib frame structure of the truss-jib crane and the crane comprising the reinforcing jib frame structure, disclosed by the invention, have the advantages of capability of remarkably improving lateral stability of a jib frame system, flexible rotation, improvement on crane loading capability of a long jib frame system by 30% or more.

Description

A kind of reinforcement jib structure of lattice-boom crane and comprise the hoisting crane of this device
Technical field
The present invention relates to a kind of hoisting crane additional strengthening, especially a kind of reinforcement jib structure of lattice-boom crane and comprise the hoisting crane of this structure.
Background technology
Crawler crane is that hoisting operation partly is contained on the crawler body, and walking relies on the runabout crane of crawler attachment.Can carry out operations such as material lifting, transportation, loading and unloading and installation.Crawler crane has that load-carrying ability is strong, grounding pressure is little, turn radius is little, hill climbing ability greatly, does not need supporting leg, band carries and goes, job stabilization is good and the truss combined altitudes such as can freely change at advantage, is widely used at construction industries such as electric power, municipal administration, bridge, petrochemical complex, water conservancy and hydropowers.
Known crawler crane is made up of engine installation, operating mechanism and jib, turntable, chassis etc.Wherein jib is generally to more piece assembling truss structure, can change length after the adjustment joint number, and the platform that its lower end hinge is loaded on the turntable is anterior; The top is with luffing wire rope pulley group hanger bearing; Can change its inclination angle, also have and install auxiliary on the jib top additional, auxiliary and jib form an angle.Lifting mechanism has major and minor two hoisting systems, and the master winch system is used for the jib lift heavy, and secondary hoisting system is used for the auxiliary lift heavy.
The jib of existing crawler crane adopts single principal arm form more; Under long-armed the operating mode situation; Because jib receives wind and carries, under the influence of factors such as surface slope, the lateral stability of whole boom system can receive influence in various degree; Reduce the lateral stability of jib, had potential safety hazard.When serious, also can cause the rollover of complete machine to lead to a disaster.And also have the large-scale crawler crane of minority to adopt the both arms frame system, and promptly adopt parallel or chevron shaped two cover jibs, be used to improve the lateral stability of the load-carrying capacity and the jib of complete machine.But the shortcoming of this mode is, its volume is big, and cost is higher, and dismounting is more complicated also, and this form also only is applicable to superhuge crawler crane, on medium and small tonnage crawler crane and inapplicable.
Summary of the invention
To the problems referred to above that existing crawler crane jib exists, the present invention provides a kind of reinforcement jib structure of lattice-boom crane and comprises the hoisting crane of this structure.
The technical scheme that technical solution problem of the present invention is adopted is:
A kind of reinforcement jib structure of lattice-boom crane comprises platform and jib, and said jib and said platform are hinged, wherein, comprises that a pair of symmetry is connected in the bearing of said platform both sides and the hold-down arm that a pair of symmetry is connected in said jib both sides;
Is connected with said jib left side in left hold-down arm one end in left side in the said pair of support arms, the other end is connected with left support abutment on the left of said platform;
Right hold-down arm one end in the right side in the said pair of support arms is connected with said jib right side, and the other end is connected with right support abutment in said platform right side;
Said pair of support arms is a truss.
The reinforcement jib structure of above-mentioned lattice-boom crane, wherein, said a pair of bearing is connected with said platform through bearing pin.
The reinforcement jib structure of above-mentioned lattice-boom crane, wherein, said jib is a truss, and said jib is in being provided with the transition girder construction with said pair of support arms bonded assembly position, and said pair of support arms is connected with said transition girder construction respectively.
The reinforcement jib structure of above-mentioned lattice-boom crane, wherein, said pair of support arms is connected with said a pair of bearing through ball pivot.
The reinforcement jib structure of above-mentioned lattice-boom crane, wherein, connect said pair of support arms and said a pair of bearing ball pivot axle center and a pair of hinge of the hinged said flat-bed of said jib in a straight line.
The reinforcement jib structure of above-mentioned lattice-boom crane, wherein, every hold-down arm in the said pair of support arms all mainly goes up joint by supporting with said jib bonded assembly, support down with said bearing bonded assembly that segmentum intercalaris combines in the joint and a plurality of support.
The reinforcement jib structure of above-mentioned lattice-boom crane passes through the bearing pin connection between the segmentum intercalaris in joint and a plurality of support under wherein, saving in the support of said every said hold-down arm, supporting.
A kind of hoisting crane wherein, comprises the reinforcement jib structure like above-mentioned lattice-boom crane.
The invention has the beneficial effects as follows:
Can significantly improve the lateral stability of boom system, rotate flexibly, the loading capability that hangs that improves long-armed frame system reaches 30% or higher.
Description of drawings
Fig. 1 is the constructional drawing of the reinforcement jib structure of a kind of lattice-boom crane of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further, but not as qualification of the present invention.
As shown in Figure 1; The reinforcement jib structure of a kind of lattice-boom crane of the present invention comprises platform 1 and jib 2, and jib 1 is hinged with platform 2; Wherein, comprise that a pair of symmetry is connected in the bearing 11,12 of platform 1 both sides and the hold-down arm 21,22 that a pair of symmetry is connected in jib 2 both sides;
Left hold-down arm 21 1 ends in the left side in the pair of support arms 21,22 are connected with jib 2 left sides, and the other end is connected with left support abutment 11 in platform 1 left side;
Right hold-down arm 22 1 ends in the right side in the pair of support arms 21,22 are connected with jib 2 right sides, and the other end is connected with right support abutment 12 in platform 1 right side;
Pair of support arms 21,22 is a truss.
Principle of the present invention is: increase hold-down arm in two sides of single armed frame and form lateral support structure; Lateral support structure can significantly improve the boom system particularly lateral stability and the side direction resistance to capsizing of long-armed frame system; Effectively improve the resistance to overturning of boom system, effectively improve the strained condition of jib main body.
Further, wherein, a pair of bearing 11,12 is connected with platform 1 through bearing pin.Bearing 11,12 is connected with platform 1 through bearing pin, and is for convenience detach, convenient transportation.
Further, wherein, jib 2 is a truss, and jib 2 is in being provided with transition girder construction 23 with pair of support arms 21,22 bonded assembly positions, and pair of support arms 21,22 is connected with transition girder construction 23 respectively.Increasing connection that transition girder construction 23 makes hold-down arm 21,22 does not influence the original truss structure of jib 2, and the transition nature.
Further, wherein, pair of support arms 21,22 is connected with a pair of bearing through ball pivot.Ball pivot bonded assembly hold-down arm 21,22 is flexibly movable; On this basis; The axle center of the ball pivot of connection pair of support arms 21,22 and a pair of bearing 11,12 and a pair of hinge of jib 1 articulated platform 2 are in a straight line; Pair of support arms 21,22 is rotated with jib 1 simultaneously and synchronously, can not influence the normal function of jib 1 because of having increased lateral support structure.
Further; Wherein, every hold-down arm in the pair of support arms 21,22 all mainly by support going up joint 201 with jib 1 bonded assembly, supporting down with the bearing bonded assembly that segmentum intercalaris 203 combines in the joint 202 and a plurality of support, adopts a plurality of parts to be combined into hold-down arm; Especially segmentum intercalaris 203 in a plurality of; Make the hold-down arm difficulty of processing reduce, can adapt to the jib 1 of multiple different length simultaneously, on this basis; Save 202 in the support of every hold-down arm, support down in the joint 203 and a plurality of support and connect through bearing pin between the segmentum intercalaris 203, the various piece that connects hold-down arm through bearing pin is convenient to hold-down arm dismounting and transportation.
The present invention also comprises a kind of hoisting crane, comprising the reinforcement jib structure like above-mentioned lattice-boom crane.
The above is merely preferred embodiment of the present invention, is not so limits claim of the present invention, so the equivalent structure that all utilizations specification sheets of the present invention and diagramatic content have been done changes, all is included in protection scope of the present invention.

Claims (8)

1. the reinforcement jib structure of a lattice-boom crane comprises platform and jib, and said jib and said platform are hinged, it is characterized in that, comprises that a pair of symmetry is connected in the bearing of said platform both sides and the hold-down arm that a pair of symmetry is connected in said jib both sides;
Is connected with said jib left side in left hold-down arm one end in left side in the said pair of support arms, the other end is connected with left support abutment on the left of said platform;
Right hold-down arm one end in the right side in the said pair of support arms is connected with said jib right side, and the other end is connected with right support abutment in said platform right side;
Said pair of support arms is a truss.
2. the reinforcement jib structure of lattice-boom crane according to claim 1 is characterized in that, said a pair of bearing is connected with said platform through bearing pin.
3. the reinforcement jib structure of lattice-boom crane according to claim 1; It is characterized in that; Said jib is a truss, and said jib is in being provided with the transition girder construction with said pair of support arms bonded assembly position, and said pair of support arms is connected with said transition girder construction respectively.
4. the reinforcement jib structure of lattice-boom crane according to claim 1 is characterized in that, said pair of support arms is connected with said a pair of bearing through ball pivot.
5. like the reinforcement jib structure of the said lattice-boom crane of claim 3, it is characterized in that, connect said pair of support arms and said a pair of bearing ball pivot axle center and a pair of hinge of the hinged said flat-bed of said jib in a straight line.
6. like the reinforcement jib structure of arbitrary said lattice-boom crane among the claim 1-5; It is characterized in that every hold-down arm in the said pair of support arms all mainly goes up joint by supporting with said jib bonded assembly, support down with said bearing bonded assembly that segmentum intercalaris combines in the joint and a plurality of support.
7. like the reinforcement jib structure of the said lattice-boom crane of claim 6, it is characterized in that, pass through the bearing pin connection between the segmentum intercalaris in joint and a plurality of support under saving in the support of said every said hold-down arm, supporting.
8. a hoisting crane is characterized in that, comprises the reinforcement jib structure like arbitrary described lattice-boom crane among the claim 1-7.
CN2011104338282A 2011-12-22 2011-12-22 Reinforcing jib frame structure of truss-jib crane and crane comprising reinforcing jib frame structure Pending CN102491195A (en)

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CN2011104338282A CN102491195A (en) 2011-12-22 2011-12-22 Reinforcing jib frame structure of truss-jib crane and crane comprising reinforcing jib frame structure

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CN2011104338282A CN102491195A (en) 2011-12-22 2011-12-22 Reinforcing jib frame structure of truss-jib crane and crane comprising reinforcing jib frame structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663190A (en) * 2013-12-13 2014-03-26 浙江三一装备有限公司 Cantilever crane and crane

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842983A (en) * 1972-06-09 1974-10-22 C Dolza Articulated jib for crawler tractors and the like
CN1899949A (en) * 2005-05-11 2007-01-24 特雷克斯—德马格合资有限公司 Lattice-boom crane for lifting heavy loads
JP2010241604A (en) * 2009-03-31 2010-10-28 Manitowoc Crane Companies Llc Folding jib main strut, and transportable reeved strut cap
CN101880012A (en) * 2010-07-21 2010-11-10 上海三一科技有限公司 Transition structure for crane jib
JP2010254398A (en) * 2009-04-22 2010-11-11 Kobe Steel Ltd Lattice boom of crane
JP2011225343A (en) * 2010-04-21 2011-11-10 Kobe Steel Ltd Lattice boom

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842983A (en) * 1972-06-09 1974-10-22 C Dolza Articulated jib for crawler tractors and the like
CN1899949A (en) * 2005-05-11 2007-01-24 特雷克斯—德马格合资有限公司 Lattice-boom crane for lifting heavy loads
JP2010241604A (en) * 2009-03-31 2010-10-28 Manitowoc Crane Companies Llc Folding jib main strut, and transportable reeved strut cap
JP2010254398A (en) * 2009-04-22 2010-11-11 Kobe Steel Ltd Lattice boom of crane
JP2011225343A (en) * 2010-04-21 2011-11-10 Kobe Steel Ltd Lattice boom
CN101880012A (en) * 2010-07-21 2010-11-10 上海三一科技有限公司 Transition structure for crane jib

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663190A (en) * 2013-12-13 2014-03-26 浙江三一装备有限公司 Cantilever crane and crane

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