CN202705904U - Small-radius hydraulic power tyre bridge girder erection machine - Google Patents
Small-radius hydraulic power tyre bridge girder erection machine Download PDFInfo
- Publication number
- CN202705904U CN202705904U CN 201220231111 CN201220231111U CN202705904U CN 202705904 U CN202705904 U CN 202705904U CN 201220231111 CN201220231111 CN 201220231111 CN 201220231111 U CN201220231111 U CN 201220231111U CN 202705904 U CN202705904 U CN 202705904U
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- China
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- support leg
- hydraulic power
- girder
- main beam
- bridge erector
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- Expired - Fee Related
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Abstract
The utility model discloses a small-radius hydraulic power tyre bridge girder erection machine, comprising a main beam, wherein a lifting crown block arranged on the main beam can move along the length direction of the main beam so as to change the center of gravity of the bridge girder erection machine; a front support leg arranged on a front end of the main beam, wherein the front support leg can be propped up or packed up based on demands; a middle support leg arranged at a central section of the main beam, wherein a lower portion of the middle support leg is provided with a tyre driving wheel set, and the tyre driving wheel set is correspondingly provided with a hydraulic power steering system; and a rear support leg arranged at a rear portion of the main beam, wherein the rear support leg can selectively propped up or packed up, a lower portion of the rear support leg is provided with a tyre guiding wheel set which plays a guiding role when the bridge girder erection machine is steering, and when the rear support leg is packed up, a girder conveying vehicle is facilitated to pass. Compared with a traditional walking manner of steel rails and steel wheels, the bridge girder erection machine adopts a tyre walking manner and the hydraulic power steering system, has advantages of high flexibility and strong controllability, and can solve a problem that a common bridge girder erection machine can not complete the erection of a small-radius prefabricated box girder.
Description
Technical field
The utility model relates to a kind of Bridge Erector, relates in particular to a kind of small radius hydraulic power rubber-tyred Bridge Erector.
Background technology
Bridge Erector belongs to the crane category, and its major function is that prefabricated beam sheet is placed on the prefabricated bridge pier.Chinese patent literature CN 2878481Y discloses a kind of " Bridge Erector ", it comprises the Bridge Erector assembly, the Bridge Erector assembly comprises Bridge Erector trolley and rear supporting leg of bridge erecting machine, be provided with hydraulic cylinder at described rear supporting leg of bridge erecting machine, between the rear support leg of Bridge Erector, be provided with the vertical shift roller box, be provided with bridge formation via hole counterweight at the Bridge Erector trolley, adopt said structure, make it to have the following advantage: can be applicable to the Plain, the mountain area build gradient is large, the large curved bridge of radius, have from heavy and light, installing/dismounting and transport easily advantage is widely used as a kind of simple and effective construction equipment.But the curved bridge of small radius has appearred in design for light rail, for example, radius reaches below the 380m, caused the angle that exists between adjacent two case beams more than 5 °, so how overcoming two strides and needs to turn so large angle between the case beam, becoming has a difficult problem to be solved, and traditional Bridge Erector adopts steel wheel walking manner on rail, can not satisfy the demand that turns wide-angle like this between two casees beams.
The utility model content
The purpose of this utility model is to solve the problems of the technologies described above, and a kind of small radius hydraulic power rubber-tyred Bridge Erector is provided, and the problem in that reply small radius prefabricated case beam sets up can realize that radius of curvature is 380m and following small radius box beam erection.
For reaching this purpose, the utility model by the following technical solutions:
A kind of small radius hydraulic power rubber-tyred Bridge Erector comprises girder, is provided with hoisting overhead travelling crane on the described girder, described overhead traveling crane can move along the girder length direction, mobile at girder by overhead traveling crane, realize that the Bridge Erector position of centre of gravity changes, can make Bridge Erector the center of gravity reach or after move; Also comprise the front leg strut that is arranged on described girder front end, the middle supporting leg that is arranged on described girder middle part, described middle supporting leg bottom is provided with rubber-tyred and drives wheels, and corresponding described driving wheels are provided with hydraulic power steering system.
Further, front leg strut can support or pack up as required, and when Bridge Erector was walked, front leg strut was packed up, so that its walking and turning to; After Bridge Erector moved into place, front leg strut was supported on the corresponding bridge pier, for box beam erection is prepared.Front leg strut can adopt the bottom with the form of structure of jack, realizes the action of front leg strut by the action of jack, and the form of structure with Telescopic that other those skilled in the art can be known also can be adapted to the utility model.
Preferably, the rear end of described girder is provided with rear support leg, and the bottom of described rear support leg is provided with the guiding wheels; Play guide effect when Bridge Erector turns to, rear support leg can support or pack up as required, when rear support leg is packed up, can be convenient to the current of when feeding beam Beam transportation vehicle.Rear support leg can adopt the form of structure that is movably articulated on the girder, be that rear support leg can rotate around pin joint, to realize support or to pack up that the form of structure that can selectively support or pack up that other those skilled in the art can be known also can be adapted to the utility model.
Preferably, described overhead traveling crane has two, and mutually is arranged side by side on described girder.
Preferably, described guiding wheels adopt the rubber-tyred wheels.
The beneficial effects of the utility model: drive wheels by adopting rubber-tyred, and cooperation hydraulic power steering system, compare traditional steel wheel, the running mode of rail, it has flexibility height, advantage that controllability is strong, and the adjacent tank beam need turn the problem than wide-angle in the time of can finely overcoming the setting up of small radius prefabricated case beam.
Description of drawings
Fig. 1 is use state one schematic diagram of the described small radius hydraulic power of embodiment rubber-tyred Bridge Erector;
Fig. 2 is use state two schematic diagrames of the described small radius hydraulic power of embodiment rubber-tyred Bridge Erector;
Fig. 3 is the schematic top plan view of Fig. 2.
Among the figure:
1, girder; 2, front leg strut; 3, middle supporting leg; 4, rear support leg; 5, drive wheels; 6, guiding wheels; 7, overhead traveling crane; 8, Beam transportation vehicle; 9, case beam.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
Shown in Fig. 1～3, in present embodiment, small radius hydraulic power rubber-tyred Bridge Erector described in the utility model comprises girder 1, the front end of girder 1 is provided with front leg strut 2, the middle part of girder 2 arranges middle supporting leg 3, the rear end of girder is provided with rear support leg 4, be provided with hoisting overhead travelling crane 7 on the top of girder 1,7 two in overhead traveling crane, and mutually be arranged side by side, two overhead traveling cranes 7 can move along the length direction of girder, to finish hoisting of case beam, mobile, lay, the bottom of middle supporting leg 3 arranges and drives wheels 5, and the bottom of rear support leg 4 arranges guiding wheels 6, wherein, driving wheels 5 and guiding wheels 6 all adopt the rubber-tyred wheels, and the corresponding wheels 5 that drive are provided with hydraulic power steering system.
When the last box beam erection of striding is finished, when preparing next step small radius case beam via hole being set up, owing to there is larger steering angle between the adjacent case beam, between rear one case beam and the last case beam not on same straight line, after last box beam erection is complete, the driving wheels need drive Bridge Erector integral body and move ahead, and hydraulic steering system control drives wheels and turns to, and parallels with the line of two buttresses to guarantee the crane ' s major girder after moving into place.Specific practice: last stride the case beam finish set up after, at first mobile hoisting overhead travelling crane 7 is to the Bridge Erector rear end, move after the center of gravity of Bridge Erector, guarantee that its rear is heavier than the place ahead, pack up simultaneously the jack of front leg strut 2, front leg strut is packed up, make Bridge Erector by driving 6 two stressed moving ahead of wheels 5 and guiding wheels, by driving wheels 5 walkings and turning to when arriving next and striding, guiding by guiding wheels 6, make front leg strut 2 can accurately arrive the mid point that next strides buttress, prop up again the jack of front leg strut 2, finish the action of Bridge Erector via hole.
When bridge is prepared to set up work, at first need mobile overhead crane 7 to Bridge Erector the place ahead (referring to Fig. 1), so that the reach of the center of gravity of Bridge Erector guarantees that its place ahead is heavier than the rear, Bridge Erector is by driving wheels 5 and 2 two stressed supports of front leg strut; Then start the jack of rear support leg 4, rear support leg is rotated and backward perk, so that Beam transportation vehicle 8 transport case beams 9 P Passables around itself and girder pin joint; When by Beam transportation vehicle 8 case beam 9 (being generally the making place of case beam) when being transported to the rear end of supporting leg 3 Bridge Erector from other places, then start rear support leg 4 jack, make rear support leg return to holding state, at this moment, two overhead traveling cranes 7 are moved to main beam rear end, and be positioned at the top (referring to Fig. 2) of case beam, an overhead traveling crane 7 is positioned at the front end of case beam 9, an overhead traveling crane 7 is positioned at the rear end of case beam 9, owing to the small radius reason, Bridge Erector and Beam transportation vehicle be on same axis (referring to Fig. 3) not, only have the front end overhead traveling crane can play box beam 9 front ends, then move simultaneously by the dolly of front end overhead traveling crane 7 with Beam transportation vehicle 8 upper rear end, so that case beam 9 moves ahead, when case beam 9 rear end suspension centres move forward to the Beam transportation vehicle front end, start the rear end overhead traveling crane and play suspension centre behind the box beam, and then move ahead simultaneously with the front end overhead traveling crane, in this process, want the level of guard box beam, then move along girder 1 length direction, move to the center of two buttresses, lay simultaneously the case beam downwards, the final realization is placed in the case beam between two buttresses, to finish the installation of this place's case beam again.
What need statement is; the above-mentioned specific embodiment only is preferred embodiment of the present utility model and institute's application technology principle; in technical scope disclosed in the utility model; the variation that any those skilled in the art of being familiar with expected easily or replacement all should be encompassed in the protection domain of the present utility model.
Claims (4)
1. small radius hydraulic power rubber-tyred Bridge Erector, comprise girder, described girder front end arranges the alternative front leg strut that supports or pack up, described girder middle part arranges middle supporting leg, is provided with hoisting overhead travelling crane on the described girder, and described overhead traveling crane can move along the girder length direction, mobile so that the variation of Bridge Erector position of centre of gravity at girder by overhead traveling crane, it is characterized in that described middle supporting leg bottom is provided with rubber-tyred and drives wheels, and corresponding described driving wheels are provided with hydraulic power steering system.
2. small radius hydraulic power rubber-tyred Bridge Erector according to claim 1 is characterized in that, the rear end of described girder is provided with the alternative rear support leg that supports or pack up, and the bottom of described rear support leg is provided with the guiding wheels.
3. small radius hydraulic power rubber-tyred Bridge Erector according to claim 2 is characterized in that described overhead traveling crane has two, and mutually is arranged side by side on described girder.
4. small radius hydraulic power rubber-tyred Bridge Erector according to claim 2 is characterized in that, described guiding wheels adopt the rubber-tyred wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231111 CN202705904U (en) | 2012-05-22 | 2012-05-22 | Small-radius hydraulic power tyre bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231111 CN202705904U (en) | 2012-05-22 | 2012-05-22 | Small-radius hydraulic power tyre bridge girder erection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202705904U true CN202705904U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231111 Expired - Fee Related CN202705904U (en) | 2012-05-22 | 2012-05-22 | Small-radius hydraulic power tyre bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202705904U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463999A (en) * | 2016-01-06 | 2016-04-06 | 秦皇岛天业通联重工股份有限公司 | Segment assembled bridging machine and curve bridging method |
| CN105839547A (en) * | 2016-06-12 | 2016-08-10 | 中铁二局集团有限公司 | Adjustable small-radius bridge girder erection machine and bridge girder erection method |
-
2012
- 2012-05-22 CN CN 201220231111 patent/CN202705904U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463999A (en) * | 2016-01-06 | 2016-04-06 | 秦皇岛天业通联重工股份有限公司 | Segment assembled bridging machine and curve bridging method |
| CN105839547A (en) * | 2016-06-12 | 2016-08-10 | 中铁二局集团有限公司 | Adjustable small-radius bridge girder erection machine and bridge girder erection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140522 |