CN102408063A - General purpose gantry crane - Google Patents
General purpose gantry crane Download PDFInfo
- Publication number
- CN102408063A CN102408063A CN2011103965309A CN201110396530A CN102408063A CN 102408063 A CN102408063 A CN 102408063A CN 2011103965309 A CN2011103965309 A CN 2011103965309A CN 201110396530 A CN201110396530 A CN 201110396530A CN 102408063 A CN102408063 A CN 102408063A
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- leg
- free bearing
- door frame
- supporting leg
- rigid
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Abstract
The invention relates to a general purpose gantry crane which comprises a gantry girder and legs which are arranged at two sides of the gantry girder. The crane is characterized in that the leg at one side of the legs at two sides is a rigid leg, and the other leg is a semi-rigid leg; the rigid leg is fixedly connected with the gantry girder through a connecting bolt; and the upper end of the semi-rigid leg is combined with the gantry girder through hinged supports which are respectively welded on the gantry girder and the semi-rigid leg and matched with each other, in a mode of hinge jointing.
Description
Technical field
The present invention relates to a kind of gantry crane for general use.
Background technology
The application of gantry crane for general use is very extensive, in order to realize the maximum equipment that utilizes, reduces production costs; Many transfer cranes have the function of turning to; Can realize the lifting construction of multizone, but these to turn to all be unloaded, large-tonnage transfer crane especially.Existing transfer crane portal-framed structure can't realize that heavy duty turns to, and especially for large span, the transfer crane of big height can't realize that more heavy duty turns to function.Its reason is that transfer crane turns to the distortion that can cause girder and produces downwarp under fully loaded transportation condition; Article two, supporting leg produces horizontal lateral force thus, and concerning two firm leg transfer cranes, this horizontal force can't overcome; When transfer crane turns to the formula of laterally moving; Because this horizontal force makes the span value of hoisting crane to increase, when turning to once more, the increase of span value can make the wheel on the running truck to drop on the rail.Span is big more, and lifting altitude is high more, and hoisting weight is big more, and the variation of span value is just big more, so two firm leg transfer crane can't realize that heavy duty turns to.
In the construction of south water to north water conservancy aqueduct, because the aqueduct volume is very large, and be thin shell structure, weight is big, so the transfer crane span that requires is 36 meters, 46 meters of complete machine bottom-to-top-heights, playing liter weight is 1300 tons (containing suspender).Such transfer crane has a technology to turn to by lift heavy, i.e. the transfer crane whole line (transferring to the left line of construction by the right line of construction) that changes of bridge formation machine that plays.This is that length is because bridge formation machine overall dimensions is very big: 91.451 meters * 25.9 meters * 34.16 meters, change system groove field does not have how the bridge formation machine is put in big place in the line process, so must be that lift heavy turns to.Change line efficient in order to practice thrift construction cost with improving, the heavy duty that construction party requires the ME1300-36A3 gantry crane for general use must have the aqueduct that plays turns to function.
Summary of the invention
The object of the invention provides a kind of heavy duty that has to turn to the gantry crane for general use of function in order to solve existing weak point in the above-mentioned prior art just.
It comprises the door frame girder gantry crane for general use of the present invention; And the supporting leg that is positioned at door frame girder both sides; Side leg in described two side legs is a rigid leg; The opposite side supporting leg adopts semi-rigid supporting leg, and described rigid leg is through tie bolt and door frame girder concrete mutually, and the upper end of said semi-rigid supporting leg combines with the door frame girder through the supporting leg free bearing that cooperatively interacts that is welded on respectively on door frame girder and the semi-rigid supporting leg in hinged way.
Supporting leg free bearing described in the present invention comprises: by an inboard leg free bearing that constitutes near the inboard two groups of inboard upper and lower free bearings in front and back with the coaxial line setting of door frame, by a leg outer side free bearing that constitutes near the two groups of upper and lower free bearings in the outside in front and back with the coaxial line setting outside the door frame; Wherein prop up the tolerance clearance of the tolerance clearance of inboard leg free bearing and corresponding free bearing bearing pin less than a leg outer side free bearing and corresponding free bearing bearing pin; Promptly adopt little free-running fit, can relatively rotate to guarantee the free bearing bearing pin near the free bearing bearing pin of door frame inboard and the matching relationship between the corresponding inboard upper and lower free bearing; Matching relationship near between the upper and lower free bearing of the free bearing bearing pin and the corresponding outside in the door frame outside adopts big free-running fit, can realize both can guaranteeing that the free bearing bearing pin relatively rotates, and can make that again hinge pin relatively moves; When the hoisting crane lift heavy make girder bending-down and the supporting leg transverse horizontal power that causes because half just leg this architectural feature and dissolve.
Groundwork of the present invention is following:
When supporting leg makes supporting leg can lean around the inboard hinge pin rotation of nearly door frame because of the horizontal cross moment that girder bending-down produced; The restriction that cooperates owing to hinge pin again near the door frame outside; Chassis traveling below the half firm leg can only have very little side travel, and this moves and is in range of control, and transfer crane is after turning to through twice like this; Still can keep its span, realize that smoothly the heavy duty of transfer crane turns to function; Resistance to overturning and safety-type that this also just guarantees the transfer crane portal-framed structure, the cart running mechanism that satisfies hoisting crane under heavy condition the double span that also can keep gantry crane that turns in tolerance.
The present invention has following beneficial effect compared with prior art:
1) solved traditional transfer crane can't turn to construction under heavy duty defective, especially can satisfy in south water to north water conservancy aqueduct erection construction under the prerequisite that keeps its span, realized that smoothly the heavy duty of transfer crane turns to function; The safety and the reliability of gantry crane for general use (proposing the groove special use) have also been guaranteed simultaneously.
2) each parts of bearing pin connected system are stressed simple and direct, clear and definite, reliable, and inboard hinge pin assembly rotates, and produced by outside hinge pin assembly and move.The shearing resistance hinge pin is born the shearing that is produced by vertical load.
3) coupling stiffness of bearing pin connected system is greatly improved, and the geometry deformation that whole portal-framed structure is caused approaches zero.Resistance to overturning and safety in the time of so just can guaranteeing hoisting crane moving in length and breadth when heavy duty.
Transfer crane of the present invention not only can satisfy the erection construction requirement of project of South-to-North water diversion water conservancy aqueduct, and this version also can apply to various transfer cranes simultaneously.
Description of drawings
Shown in Figure 1 is front view of the present invention.
Fig. 2 is the left view of Fig. 1.
Sequence number among the figure: 1 is girder, and 2 is rigid leg, and 3 is semi-rigid supporting leg.
Fig. 3 is a portal-framed structure front view of the present invention.
Fig. 4 is the left view of Fig. 3.
Sequence number among the figure: 1 is girder, and 2 is rigid leg, and 3 is semi-rigid supporting leg, 4 inboard leg free bearings, 5 interior free bearing bearing pins, 6 leg outer side free bearings, 7 outer free bearing bearing pins.
Fig. 5 is the assembly drowing of the present invention in semi-rigid supporting leg annexation.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the B-B cutaway view of Fig. 5.
Sequence number among the figure: 5 is interior free bearing bearing pin, and 7 is outer free bearing bearing pin, and 8 is the inboard free bearing of going up, and 9 is free bearing on the outside, and 10 is inboard free bearing down, and 11 is free bearing under the outside.
The specific embodiment
To combine embodiment (accompanying drawing) to further describe below the present invention
Like Fig. 1, shown in 2.Gantry crane for general use of the present invention comprises door frame girder 1; And the supporting leg that is positioned at door frame girder both sides; Side leg in described two side legs is a rigid leg 2; The opposite side supporting leg adopts semi-rigid supporting leg 3, and described rigid leg 2 is through tie bolt and door frame girder 1 concrete mutually, and the upper end of said semi-rigid supporting leg 3 combines with door frame girder 1 through the supporting leg free bearing that cooperatively interacts that is welded on respectively on door frame girder 1 and the semi-rigid supporting leg 3 in hinged way.
Like Fig. 3,4,5,6, shown in 7; Supporting leg free bearing described in the present invention comprises: by an inboard leg free bearing 4 that constitutes near the inboard two groups of inboard upper and lower free bearings 8,10 in front and back with the coaxial line setting of door frame, by a leg outer side free bearing 6 that constitutes near the two groups of upper and lower free bearings 9,11 in the outside in front and back with the coaxial line setting outside the door frame; The tolerance clearance of wherein propping up inboard leg free bearing 4 and corresponding interior free bearing bearing pin 5 is less than the tolerance clearance of a leg outer side free bearing 6 with corresponding outer free bearing bearing pin 7; Free bearing bearing pin 5 and accordingly inboard upper and lower free bearing 8, the matching relationship between 10 adopt little free-running fit promptly, can relatively rotate to guarantee the free bearing bearing pin; The upper and lower free bearing in the outer free bearing bearing pin 7 and the corresponding outside 9, the matching relationship between 11 adopt big free-running fit, can realize both can guaranteeing that the free bearing bearing pin relatively rotates, and can make that again hinge pin relatively moves; When the hoisting crane lift heavy make girder bending-down and the supporting leg transverse horizontal power that causes because half just leg this architectural feature and dissolve.
Hoisting crane of the present invention can be dissolved the caused supporting leg horizontal lateral force of lift heavy and is minimum under the effect of two free bearings and bearing pin, even is zero.Through such setting, avoided the transfer crane heavy duty to turn to the rear support leg span to change.Can guarantee simultaneously the complete machine stability of transfer crane when moving in length and breadth again, make stability and safety in the transfer crane operational process obtain the failure-free assurance.
Claims (2)
1. gantry crane for general use; It comprises the door frame girder; And the supporting leg that is positioned at door frame girder both sides, it is characterized in that: the side leg in described two side legs is a rigid leg, and the opposite side supporting leg adopts semi-rigid supporting leg; Described rigid leg is through tie bolt and door frame girder concrete mutually, and the upper end of said semi-rigid supporting leg combines with the door frame girder through the supporting leg free bearing that cooperatively interacts that is welded on respectively on door frame girder and the semi-rigid supporting leg in hinged way.
2. gantry crane for general use according to claim 1; It is characterized in that: described supporting leg free bearing comprises: by an inboard leg free bearing that constitutes near the inboard two groups of inboard upper and lower free bearings in front and back with the coaxial line setting of door frame, by a leg outer side free bearing that constitutes near the two groups of upper and lower free bearings in the outside in front and back with the coaxial line setting outside the door frame; Wherein prop up the tolerance clearance of the tolerance clearance of inboard leg free bearing and corresponding free bearing bearing pin less than a leg outer side free bearing and corresponding free bearing bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103965309A CN102408063A (en) | 2011-12-05 | 2011-12-05 | General purpose gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103965309A CN102408063A (en) | 2011-12-05 | 2011-12-05 | General purpose gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102408063A true CN102408063A (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103965309A Pending CN102408063A (en) | 2011-12-05 | 2011-12-05 | General purpose gantry crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN102408063A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774747A (en) * | 2012-08-09 | 2012-11-14 | 郑州新大方重工科技有限公司 | Steering mechanism for travelling trolley of universal gantry crane |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10157971A (en) * | 1996-11-29 | 1998-06-16 | Ishikawajima Harima Heavy Ind Co Ltd | Rail traveling crane |
| JP2000044168A (en) * | 1998-07-27 | 2000-02-15 | Ishikawajima Harima Heavy Ind Co Ltd | Earthquake-proof structure of traveling crane |
| JP2004026506A (en) * | 2003-07-22 | 2004-01-29 | Kyoei Seisakusho:Kk | Portal crane |
| CN1837010A (en) * | 2005-03-21 | 2006-09-27 | 中船第九设计研究院 | Structure for connecting frame and jack of larry on double girder gantry crane |
| CN201058789Y (en) * | 2007-04-29 | 2008-05-14 | 郑州大方桥梁机械有限公司 | Wheel-track type girder gantry crane |
| CN101537976A (en) * | 2009-03-20 | 2009-09-23 | 史胜海 | Dual-tower-mast giant self-lifting crane and following-carrying lifting method thereof |
| CN201506684U (en) * | 2009-08-17 | 2010-06-16 | 姜少君 | Wheel type hanging beam movable gantry crane |
| CN201574045U (en) * | 2009-10-13 | 2010-09-08 | 武汉通联路桥机械技术有限公司 | Gantry crane capable of automatically carrying out span variation |
| CN101913532A (en) * | 2010-07-30 | 2010-12-15 | 太原重工股份有限公司 | Hinge shaft devices of flexible support legs of gantry crane |
| CN202322010U (en) * | 2011-12-05 | 2012-07-11 | 郑州新大方重工科技有限公司 | General gantry crane |
-
2011
- 2011-12-05 CN CN2011103965309A patent/CN102408063A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10157971A (en) * | 1996-11-29 | 1998-06-16 | Ishikawajima Harima Heavy Ind Co Ltd | Rail traveling crane |
| JP2000044168A (en) * | 1998-07-27 | 2000-02-15 | Ishikawajima Harima Heavy Ind Co Ltd | Earthquake-proof structure of traveling crane |
| JP2004026506A (en) * | 2003-07-22 | 2004-01-29 | Kyoei Seisakusho:Kk | Portal crane |
| CN1837010A (en) * | 2005-03-21 | 2006-09-27 | 中船第九设计研究院 | Structure for connecting frame and jack of larry on double girder gantry crane |
| CN201058789Y (en) * | 2007-04-29 | 2008-05-14 | 郑州大方桥梁机械有限公司 | Wheel-track type girder gantry crane |
| CN101537976A (en) * | 2009-03-20 | 2009-09-23 | 史胜海 | Dual-tower-mast giant self-lifting crane and following-carrying lifting method thereof |
| CN201506684U (en) * | 2009-08-17 | 2010-06-16 | 姜少君 | Wheel type hanging beam movable gantry crane |
| CN201574045U (en) * | 2009-10-13 | 2010-09-08 | 武汉通联路桥机械技术有限公司 | Gantry crane capable of automatically carrying out span variation |
| CN101913532A (en) * | 2010-07-30 | 2010-12-15 | 太原重工股份有限公司 | Hinge shaft devices of flexible support legs of gantry crane |
| CN202322010U (en) * | 2011-12-05 | 2012-07-11 | 郑州新大方重工科技有限公司 | General gantry crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774747A (en) * | 2012-08-09 | 2012-11-14 | 郑州新大方重工科技有限公司 | Steering mechanism for travelling trolley of universal gantry crane |
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Application publication date: 20120411 |