CN2782640Y - Bogie frame and support joint structure for portal jib crane - Google Patents
Bogie frame and support joint structure for portal jib crane Download PDFInfo
- Publication number
- CN2782640Y CN2782640Y CN 200520040251 CN200520040251U CN2782640Y CN 2782640 Y CN2782640 Y CN 2782640Y CN 200520040251 CN200520040251 CN 200520040251 CN 200520040251 U CN200520040251 U CN 200520040251U CN 2782640 Y CN2782640 Y CN 2782640Y
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- hinge
- supporting leg
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- utility
- steel basin
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Abstract
The utility model discloses a connecting structure of a carriage frame and supporting legs on a jib crane with double beam doors. The utility model is characterized in that the carriage frame and the supporting leg have the connecting way that one side of the carriage frame is fixedly connected with one side of the supporting leg; the other side of the carriage frame is flexibly connected with the other side of the supporting leg. The utility model has the specific way that the fixed connection adopts welding or bolt connection; the flexible connection adopts a unidirection hinge device or a flexible hinge device. The utility model can completely compensate displacement which is brought by calculated error and variation which is brought during the manufacturing and using process. The cost is low. Only a support leg on one side needs to be made into a flexible connection form and the manufacture is simple. Compared with the past way that a make-up measure is taken after a problem is generated, the utility model has the advantages of low cost and safe construction and use. Installing the flexible connecting device can be carried out when an upper carriage is manufactured on the ground. The construction is simple and safe and the use is reliable.
Description
Technical field
The utility model relates to car frame and supporting leg connection structure on shipbuilding large span double girder gantry crane, the particularly double girder gantry crane.
Background technology
At present, shipbuilding is all adopted the structure that is rigidly connected with car frame on the large span double girder gantry crane, promptly goes up the supporting leg of trolley frame and vehicle frame for being rigidly connected.These structure existing problems are: at first go up trolley frame and produce distortion after carrying, this distortion diminishes dolly self gauge, and deformation pattern as shown in Figure 1; Secondly girder also can produce torsional deflection when last dolly carrying, and this torsional deflection makes the last trolley span on the girder become big, and deformation pattern and makes the distortion size of girder change with last dolly position difference on girder as shown in Figure 2 owing to last dolly effect; Also having dolly carrying down that girder is produced reverses, this reverses trolley span is diminished, deformation pattern as shown in Figure 3 since mode of deformation many, inducement is many, promptly make that with operating mode is different the distortion variation is various, this can only roughly control according to calculating the gained distortion when design.1., go up dolly one side two-wheel edge control method during design generally adopts:, opposite side does not have wheel rim, will not have the increasing of wheel rim sidecar wheel tread width according to calculating distortion, to prevent to be out of shape the rear wheel offset track; 2., upward the two-wheel edge is all adopted in the dolly both sides, strengthens both sides wheel rim width to prevent the wheel offset track according to calculating distortion.More than two kinds of methods, though solved displacement control in theory, but can't overcome the displacement that in actual manufacturing and use, causes, so all occur the situation of wheel offset track at home and abroad in the use of design-calculated double girder gantry crane, so that major accident that causes the high-altitude to fall.
1., attack with fire and proofread and correct displacement both at home and abroad last dolly is produced and taked to remedy accordingly measure after the situation that wanders off:, promptly experienced technical personnel heats with attacking with fire in the high-altitude makes dolly supporting leg contravariant position, makes dolly wheel rim width center return orbit centre.This method shortcoming is that aloft work is dangerous big, in the fire attack trimming process on dolly itself have from heavy lift, so a lot of uncertainties are arranged, technical application difficulty height does not have written technical guarantee, quantification difficult needs the rich experiences of attacking with fire and proofreading and correct.2., two supporting legs of going up dolly adopt bolt to connect, if the wheel offset track in use occurs, demounting bolt then, orbit centre was returned at dolly wheel rim width center on shimming made in butt flange.This method shortcoming is that aloft work is dangerous big, needs additional support to replace supporting leg when the dismounting supporting leg, implements the difficulty height.
Summary of the invention
The purpose of this utility model is car frame and a supporting leg connection structure at the deficiencies in the prior art and on a kind of double girder gantry crane of design-calculated, it can make the dolly wheel at the horizontal direction energy free to deflect vertical with track, when gauge on the girder increases, go up dolly self gauge and also increase immediately, and can overcome the displacement of going up dolly self.
The concrete technical scheme that realizes the utility model purpose is: car frame and supporting leg connection structure on a kind of double girder gantry crane, and it is characterized in that vehicle frame and being connected of supporting leg be: a side is a captive joint, and a side is for flexibly connecting; Concrete mode is that captive joint adopts welding or bolted connection, flexibly connects to adopt unidirectional hinge device or flexible hinge device to connect.
Described unidirectional hinge device comprises hinge, upper and lower free bearing, axle head baffle plate, upper and lower free bearing middle part is respectively equipped with axis hole, and hinge is located in the axis hole, and the axle head baffle plate is by being bolted to down on the free bearing, last free bearing is captiveed joint with vehicle frame, and following free bearing is captiveed joint with supporting leg.
Described flexible hinge device comprises following of hinge, the hinge seat of honour, last steel basin, following steel basin, poly-chloroprene rubber, poly-chloroprene rubber is located between steel basin, the following steel basin, last steel basin, down the steel basin is installed on following of the hinge seat of honour, hinge by cooperation, cuts with scissors the seat of honour and captives joint with vehicle frame, cuts with scissors following and captives joint with supporting leg.
But the utility model full remuneration calculation error causes displacement and makes the variation that causes in the use, cost is low, only need a side leg is made the form of flexibly connecting, it is simple to make routine, compares the measure of taking after in the past going wrong that remedies, and cost reduces greatly, construction and safe in utilization, flexible connecting device is installed can be on make on ground be carried out during dolly, it is simple and safe construct, uses reliably.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are prior art displacement scheme drawing
Fig. 4 is the double girder gantry crane overall schematic
Fig. 5 is the utility model structural representation
Fig. 6 is the unidirectional hinge device structural representation of the utility model
Fig. 7 is Fig. 6 lateral plan
Fig. 8 is the flexible hinge device structural representation of the utility model
Fig. 9 is Fig. 8 lateral plan
The specific embodiment
Consult Fig. 4, double girder gantry crane is used for the shipyard sectional hoisting, and span is generally from 50 meters to 200 meters, and the biggest lifting capacity is from 200 tons to 1000 tons; Crane girder is the twin-spar construction of trapezoid cross section, and trolley track is up and down arranged on it, keeps supplying down trolley travelling and uses.Last dolly 5 is provided with two large-tonnage suspenders, and its orbit is two tracks in the outside in four tracks on the girder 3.Large-tonnage main hook of following dolly 4 operated by rotary motion, washability is provided with the auxiliary hook of a little tonnage again, and its orbit is inboard two tracks in four tracks on the girder 3, and can pass to finish the sectional turn-over hoisting below last dolly 5.
Consult Fig. 5, the utility model vehicle frame 1 with being connected of supporting leg 2 is: a side is a captive joint, and a side is for flexibly connecting; Concrete mode is that captive joint adopts welding or bolted connection, flexibly connects to adopt unidirectional hinge device or flexible hinge device to connect.
Consult Fig. 6,7, the unidirectional hinge device of the utility model comprises hinge 10, upper and lower free bearing 8,9, axle head baffle plate 6, upper and lower free bearing 8,9 middle parts are respectively equipped with axis hole, hinge 10 is located in the axis hole, axle head baffle plate 6 is fixed on down on the free bearing 9 by bolt 7, last free bearing 8 is captiveed joint with vehicle frame 1, and following free bearing 9 is captiveed joint with supporting leg 2.Lubricator cup is arranged at hinge 10 two ends so that the timed lubrication hinge.When girder had got on the right track displacement, because the friction force effect, track was given the power of a displacement direction of wheel, and this power makes flexible leg rotate around hinge, thereby makes wheel keep original position can not wander off.When last dolly 5 self displacement, last dolly framework is actual to be a single supported beam model, so self wheelspan just can not change when adopting the supporting leg of hard and soft combination, but the dolly framework can produce a horizontal displacement on this moment, make firm, flexible leg that a pivot angle all be arranged, this pivot angle discharges in the swing of flexible leg side by flexible leg, just discharges by relatively rotating between hinge 10 and free bearing.
Consult Fig. 8,9, another embodiment of the utility model is flexible hinge device, it comprises following 9 of hinge, the hinge seat of honour 8, last steel basin 11, following steel basin 12, poly-chloroprene rubber 13, poly-chloroprene rubber 13 is located between steel basin 11, the following steel basin 12, last steel basin 11, down steel basin 12 is installed on following 9 at the hinge seat of honour 8, hinge by cooperation, captiveing joint with vehicle frame 1 in the hinge seat of honour 8, cuts with scissors following 9 and captive joint with supporting leg 2.When girder 3 has got on the right track displacement, because the friction force effect, track is given the power of a displacement direction of wheel, and this power makes flexible leg rotate around flexible hinge device, the rotation of flexible hinge device is to realize by the elastic deformation of poly-chloroprene rubber 13, thereby makes wheel keep original position can not wander off.When last dolly self displacement, last dolly framework is actual to be a single supported beam model, so self wheelspan just can not change when adopting the supporting leg of hard and soft combination, but the dolly framework can produce a horizontal displacement on this moment, make firm, flexible leg that a pivot angle all be arranged, this pivot angle discharges in the swing of flexible leg side by flexible leg, and the distortion by poly-chloroprene rubber just discharges.
Claims (3)
1, car frame and supporting leg connection structure on a kind of double girder gantry crane, it is characterized in that vehicle frame and being connected of supporting leg be: a side is a captive joint, and a side is for flexibly connecting; Concrete mode is that captive joint adopts welding or bolted connection, flexibly connects to adopt unidirectional hinge device or flexible hinge device to connect.
2, connection structure according to claim 1, it is characterized in that described unidirectional hinge device comprises hinge, upper and lower free bearing, axle head baffle plate, upper and lower free bearing middle part is respectively equipped with axis hole, hinge is located in the axis hole, the axle head baffle plate is by being bolted to down on the free bearing, last free bearing is captiveed joint with vehicle frame, and following free bearing is captiveed joint with supporting leg.
3, connection structure according to claim 1, it is characterized in that described flexible hinge device comprises following of hinge, the hinge seat of honour, last steel basin, following steel basin, poly-chloroprene rubber, poly-chloroprene rubber is located between steel basin, the following steel basin, last steel basin, down the steel basin is installed on following of the hinge seat of honour, hinge by cooperation, captiveing joint with vehicle frame in the hinge seat of honour, cuts with scissors following and captive joint with supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040251 CN2782640Y (en) | 2005-03-21 | 2005-03-21 | Bogie frame and support joint structure for portal jib crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040251 CN2782640Y (en) | 2005-03-21 | 2005-03-21 | Bogie frame and support joint structure for portal jib crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782640Y true CN2782640Y (en) | 2006-05-24 |
Family
ID=36767632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040251 Expired - Lifetime CN2782640Y (en) | 2005-03-21 | 2005-03-21 | Bogie frame and support joint structure for portal jib crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782640Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413774C (en) * | 2005-03-21 | 2008-08-27 | 中船第九设计研究院 | Structure for connecting frame and jack of larry on double girder gantry crane |
| CN103171976A (en) * | 2011-12-20 | 2013-06-26 | 上海振华重工(集团)股份有限公司 | Hoisting method for shipyard gantry crane |
-
2005
- 2005-03-21 CN CN 200520040251 patent/CN2782640Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413774C (en) * | 2005-03-21 | 2008-08-27 | 中船第九设计研究院 | Structure for connecting frame and jack of larry on double girder gantry crane |
| CN103171976A (en) * | 2011-12-20 | 2013-06-26 | 上海振华重工(集团)股份有限公司 | Hoisting method for shipyard gantry crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080827 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |