CN2583070Y - Folding-arm portal crane - Google Patents
Folding-arm portal crane Download PDFInfo
- Publication number
- CN2583070Y CN2583070Y CN 02288462 CN02288462U CN2583070Y CN 2583070 Y CN2583070 Y CN 2583070Y CN 02288462 CN02288462 CN 02288462 CN 02288462 U CN02288462 U CN 02288462U CN 2583070 Y CN2583070 Y CN 2583070Y
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- CN
- China
- Prior art keywords
- girder
- bearing
- plate
- folding
- variation
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a folding-arm portal crane which can be used for a folding main beam with a variable rail gauge A main beam of the utility model is divided into a working section and a turning section which are connected through a vertical hinge, and the variation of an included angle between the two sections is controlled through a hydraulic oil pump to make the distance between both ends of the main beam varied to adapt to the variation of the rail gauge. The folding main beam of the utility model has the advantages of simple structure, less dead load increase, small strength and rigidity variation, convenient and safe and reliable control and is capable carrying the variable rail gauge.
Description
Technical field
The utility model belongs to field of mechanical technique, is specifically related to a kind of folding arm transfer crane that is applicable to the bendable girder of variable rail gauge.
Background technology
When setting up the bridge of minor radius, deep camber bending, the leading beam overwhelming majority of bridge formation machine adopts bendable.Correspondingly, the fortune Liangmen formula hoisting crane that moves on the leading beam during at bending point gauge to change.Therefore, require the girder length of fortune Liangmen formula hoisting crane also will to change with the variation of gauge.Yet the girder length of this class hoisting crane is fixed at present, and the way of employing is to strengthen the tread of operating unit wheel, and its adaptable gauge variation range is very little; Also have crane girder is designed to telescoping, but its complex structure, deadweight increases big, the control more complicated.
Summary of the invention
The purpose of this utility model is to propose a kind of simple in structure, control easily applicable to the transfer crane of the bendable girder of variable rail gauge.
The folding arm transfer crane applicable to the bendable girder of variable rail gauge that the utility model proposes is made of operation chassis, supporting leg, girder.Wherein, girder is divided into active section girder and turn section girder two parts, two segment length ratio is 2: 1----3: 1, the one vertical hinge that connects is set between two sections, make girder between the girder of vertical hinge both sides, to be provided with hydraulic ram, in order to control the variation of two sections girder angles in the horizontal surface bending, thereby realize the variation of girder two ends distance, to adapt to the variation of gauge.Its structure as depicted in figs. 1 and 2.Other structure of this hoisting crane is consistent with the structure of original transfer crane.
In the utility model, the operation chassis of hoisting crane can rotate around supporting leg.When gauge changes, track and girder axis angle are changed.In addition, change start position at gauge and be provided with sensor, and by computer operational program (being provided with adjustable parameters such as turning radius, length in the program), the action of modulated pressure oil cylinder.
The utility model design-calculated transfer crane by the vertical hinge on the girder, makes girder bending in the horizontal direction, and by hydraulic ram control variable angle, realizes the change of girder two ends distance, to adapt to the change of gauge; By of the rotation of row fortune chassis around supporting leg, the change of track and girder axis angle when changing to adapt to gauge.The needs of practice of construction have been satisfied fully.The bending girder is simple in structure in the utility model, and deadweight increases few, and intensity, stiffness variation are little, can be with to carry to become a gauge, and control is convenient, safety, reliable.
Description of drawings
Fig. 1 is this crane girder texture edge diagram.
Fig. 2 overlooks diagram for this crane girder structure.
Fig. 3 is the structural diagrams of this crane girder at vertical hinge place.
Number in the figure: 1 is the top flange plate at vertical hinge place, and 2 is brace panel, and 3 are lubricated plug cock, 4 is bolt of rear end plate and axis plate, and 5 is bearing pin, and 6 is seal ring, 7 is bearing, and 8 is middle flange plate, and 9 is bearing race, 10 is the bottom wing listrium, 11 is the active section girder, and 12 is the turn section girder, and 13 for connecting hinge, 14 is hydraulic ram, and 15 is supporting leg.
The specific embodiment
Further describe the utility model below by embodiment.
As shown in drawings.Folding-jib crane is made of operation chassis, supporting leg, active section girder, turn section girder, folding arm hydraulic ram, the vertical hinge that connects.Active section girder 11 is 3: 1 with the length ratio of turn section girder 12.Its hinged place, two ends adopts two of concentric to connect hinge 13 respectively, as shown in Figure 3 in the upper and lower both sides of beam.This connection hinge is made of top flange plate 1, brace panel 2, lubricated plug cock 3, bolt of rear end plate and axis plate 4, bearing pin 5, seal ring 6, bearing 7, middle flange plate 8, bearing race 9 and bottom wing listrium 10.Brace panel 2 is welded on respectively on the upper and lower wing plate, and as the support of bearing pin 5, bolt of rear end plate and axis plate 4 are fixing with bearing pin 5, prevent its end float misalignment.In the middle flange plate 8 bearing race 9 and bearing 7 are set.Lubricated 3 oilholes by bearing pin 5 of plug cock provide lubricating oil to bearing, and seal ring 6 plays dustproof effect.Oil cylinder 14 is arranged on work girder 11 and the turnover girder 12, when the needs folding arm, is rotated around bearing pin by hydraulic oil cylinder driving turn section girder.The action of oil cylinder is by computer controlled.It is consistent that other structure of hoisting crane and original gate-type play machine.
Claims (3)
1, a kind of folding arm transfer crane, be made of operation chassis, supporting leg, girder, it is characterized in that girder is divided into active section girder and turn section girder two parts, two parts length ratio is 2: 1----3: 1, be provided with vertical connection hinge between two sections, make that girder can be in the horizontal surface bending; Be provided with hydraulic ram between the girder of connection hinge both sides, in order to control the variation of two sections girder angles.
2, folding arm transfer crane according to claim 1 is characterized in that row fortune chassis rotates around supporting leg, changes track and girder axis angle.
3, folding arm transfer crane according to claim 1 is characterized in that connecting hinge and is made of top flange plate (1), brace panel (2), lubricated plug cock (3), bolt of rear end plate and axis plate (4), bearing pin (5), seal ring (6), bearing (7), middle flange plate (8), bearing race (9), bottom wing listrium (10); Brace panel (2) is welded on respectively on the upper and lower edge of a wing, and as the support of bearing pin (5), bolt of rear end plate and axis plate (4) are fixing with bearing pin (5), and bearing race (9) and bearing (7) are set in the middle flange plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288462 CN2583070Y (en) | 2002-12-19 | 2002-12-19 | Folding-arm portal crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288462 CN2583070Y (en) | 2002-12-19 | 2002-12-19 | Folding-arm portal crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583070Y true CN2583070Y (en) | 2003-10-29 |
Family
ID=33748355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288462 Expired - Fee Related CN2583070Y (en) | 2002-12-19 | 2002-12-19 | Folding-arm portal crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583070Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330554C (en) * | 2004-08-27 | 2007-08-08 | 中船第九设计研究院 | Movable track beam of overhead crane |
| CN107188054A (en) * | 2017-07-26 | 2017-09-22 | 唐志赏 | A kind of cantilever crane and its application method |
| CN113353794A (en) * | 2021-06-04 | 2021-09-07 | 中交二航局第二工程有限公司 | Seamless connection track capable of being horizontally bent |
-
2002
- 2002-12-19 CN CN 02288462 patent/CN2583070Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330554C (en) * | 2004-08-27 | 2007-08-08 | 中船第九设计研究院 | Movable track beam of overhead crane |
| CN107188054A (en) * | 2017-07-26 | 2017-09-22 | 唐志赏 | A kind of cantilever crane and its application method |
| CN113353794A (en) * | 2021-06-04 | 2021-09-07 | 中交二航局第二工程有限公司 | Seamless connection track capable of being horizontally bent |
| CN113353794B (en) * | 2021-06-04 | 2022-06-24 | 中交二航局第二工程有限公司 | Seamless connection track capable of being horizontally bent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |