CN201390932Y - Movable supporting leg of bridge erecting machine - Google Patents
Movable supporting leg of bridge erecting machine Download PDFInfo
- Publication number
- CN201390932Y CN201390932Y CN200920141742U CN200920141742U CN201390932Y CN 201390932 Y CN201390932 Y CN 201390932Y CN 200920141742 U CN200920141742 U CN 200920141742U CN 200920141742 U CN200920141742 U CN 200920141742U CN 201390932 Y CN201390932 Y CN 201390932Y
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- movable supporting
- base
- supporting legs
- telescopic mast
- erecting machine
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Abstract
The utility model relates to a bridge erecting machine, and particularly relates to a movable supporting leg thereof. The movable supporting leg adopts the scheme that the movable supporting leg of the bridge erecting machine comprises a base, a pair of telescopic pillars, a locking mechanism, and a hanging mechanism, wherein the telescopic pillars are hinged with two end parts of the base; the locking mechanism is arranged on the base and is used for locking the base on a box grider; the hanging mechanism drives the movable supporting leg to move forwards and backwards; each telescopic pillar comprises a plurality sections of telescopic pillar units which are sleeved in sequence; and each telescopic pillar unit is provided with a hydraulic mechanism which controls the expansion and contraction of the telescopic pillar unit. By adopting the technical scheme, the utility model has the advantage that the movable supporting leg is provided with various functions and states, well achieves the functions during changeable span girder erection such as main beam supporting, lower guiding beam supporting, lower guiding beam conveying and the like, and improves the work efficiency of the bridge erecting machine.
Description
Technical field
The utility model relates to a kind of bridge formation machine, particularly a kind of movable supporting legs of the machine of building bridge.
Background technology
Line for Passenger Transportation, high-speed railway that China's construction neutralization is about to build always are about 1.2 ten thousand kilometers, and bridge accounts for 50% of total circuit length in the circuit.The main beam shape of these bridges is whole hole 32m, 24m, 20m prefabricated case beam, and setting up of these case beams need be finished by the bridge formation machine, and the bridge formation machine need be finished and set a roof beam in place, beam is carried in via hole displacement, Beam transportation vehicle on the back, Beam transportation vehicle is packed and action such as shifted between bridge formation machine bridge.
The bridge formation machine comprises by the hinged two groups of girders in front and back of combining mechanism.Be provided with bridge formation machine front leg strut and bridge formation machine rear support leg at the two ends of girder, bridge formation machine front leg strut is supported on the preceding pier when setting a roof beam in place, it is the front fulcrum of girder, bridge formation machine front leg strut has the active section that can stretch, to adapt to setting up of bridge with gradient, rotating being connected on the girder of whole bridge formation machine front leg strut can turn when complete machine is packed between bridge; Bridge formation machine rear support leg is two groups of C shaped steel frame formula structures, rear fulcrum as girder, the bent leg of rear support leg is a C shape steel case beam, top links to each other with free bearing, and the bottom is connected with straight leg, when passing through operating mode such as tunnel at the bridge formation machine, bent leg can turn 90 degrees around revolving than seat, to reduce the size of complete machine width, treat that the bridge formation machine puts in place after, bent leg restores.Following nose girder is arranged under crane ' s major girder, following nose girder is used for the tote box beam, track as Beam transportation vehicle, following nose girder supporting part is a case beam section mechanism, the nose girder of auxiliary via hole partly is a channel section mechanism, following nose girder end face is equipped with carries beam dolly aisle square steel on the back, the orbit square steel voluntarily that uses when following nose girder bottom surface is provided with for following nose girder via hole; The two ends of following nose girder are connected with down nose girder front leg strut and following nose girder contraposition supporting leg respectively, preceding pier when following nose girder front leg strut is supported on the construction of bridge formation machine, front end fulcrum as following nose girder, the contraposition supporting leg of following nose girder is the rear fulcrum of following nose girder, when Beam transportation vehicle fortune beam puts in place, height by nose girder under the adjustment of contraposition support oil cylinder makes down nose girder dock with Beam transportation vehicle.
Usually the bridge formation machine also comprises a middle supporting leg, but middle supporting leg only plays the effect of supporting girder, and function ratio is more single, and the change in the time of can not adapting to different spans is striden and set a roof beam in place.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to be used to support girder for the bridge formation machine provides a kind of, to support the multi-functional movable supporting legs of nose girder down of nose girder, transmission down.
In order to reach above purpose, the scheme that the utility model adopts is: a kind of movable supporting legs of bridge erecting machine, it comprises base, bottom-hinged is at a pair of telescopic mast at described base both ends, being arranged on being used on the described base is locked in locking mechanism on the case beam to described base, and drives the hanging mechanism that described movable supporting legs moves forward and backward; Described telescopic mast is made up of the multi-joint telescoping pole unit, described each telescopic mast unit socket successively, and described each telescopic mast unit disposes its flexible hydraulic mechanism of control respectively;
Described movable supporting legs also comprises nose girder connecting gear down, described down nose girder connecting gear comprises the bearing that is arranged on the described base, be arranged on roller above the described bearing, drive the jacking unit that described bearing moves up, and described jacking unit is arranged on the described base.
Described locking mechanism comprise securing rod, with the nut that described securing rod matches, offer the through hole that cooperates with described securing rod on the described base.
Described hanging mechanism comprises the slide that is fixedly installed on the described base, the motor that the described slide of driving moves on guide rail.
Described base is provided with side changes cylinder, and the piston rod that this side is changeed cylinder is connected with described telescopic mast, and it is the center of rotation rotation with the pin joint of itself and described base that the piston rod of described side commentaries on classics cylinder drives described telescopic mast.
Because the utility model has adopted above technical scheme, its advantage is: movable supporting legs of bridge erecting machine of the present utility model has multiple function and state, play effects such as support girder, the following nose girder of support, the following nose girder of transmission, improved the operating efficiency of bridge formation machine; Be provided with hanging mechanism, whole movable supporting legs can move forward and backward, and the change in the time of adapting to different spans is striden and set a roof beam in place.
Description of drawings
Accompanying drawing 1 is a front view of the present utility model;
Accompanying drawing 2 is a vertical view of the present utility model;
Accompanying drawing 3 is the A-A sectional view in the accompanying drawing 1;
Wherein: 1, base; 2, telescopic mast; 3, hanging mechanism; 4, hydraulic mechanism; 5, following nose girder connecting gear; 6, jacking cylinder; 7, securing rod; 8, roller; 9, following nose girder; 10, slide; 11, motor; 12, side is changeed cylinder; 13, bearing.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
As accompanying drawing 1 to shown in the accompanying drawing 3, a kind of movable supporting legs of bridge erecting machine, it comprises base 1, bottom-hinged is at a pair of telescopic mast 2 at base 1 both ends, is arranged on being used on the base 1 base 1 is locked in locking mechanism on the case beam.Locking mechanism comprise securing rod 7, with securing rod 7 nut engaged, offer the through hole that cooperates with securing rod 7 on the base 1.After movable supporting legs moves into place, securing rod 7 is passed the through hole and the hanging beam hole of frame case beam, and lock nut base 1 is locked on the case beam, guarantee the stability when movable supporting legs supports girder.
Movable supporting legs of bridge erecting machine comprises the hanging mechanism 3 that the driving movable supporting legs moves forward and backward, hanging mechanism 3 comprises the slide 10 that is fixedly installed on the base 1, the motor 11 that driving slide 10 moves on guide rail, guide rail is fixedly installed on down the both sides of nose girder 9, and along 9 the pasts of nose girder extend back down.When the mobile movable supporting legs of needs, take off securing rod 7, remove the connection between base 1 and the case beam.Be provided with transmission mechanism between motor 11 and the slide 10, the power of motor 11 is sent to slide 10 by transmission mechanism, driving slide 10 moves on guide rail, because of slide 10 is fixedly installed on the base 1, so when slide 10 is mobile on guide rail, whole movable supporting legs, is locked in base 1 by locking mechanism and carries out the next round operation on the case beam after moving into place along with slide 10 moves forward and backward.
In the present embodiment, telescopic mast 2 is socketed to form by two joint telescopic mast unit, and the telescopic mast unit that is positioned at the top disposes an oil cylinder, and the piston rod of this oil cylinder is connected with the telescopic mast unit, the action of telescopic mast unit that hydraulic oil cylinder driving is attached thereto is stretched out telescopic mast 2 or is withdrawn.
Movable supporting legs also comprises down nose girder connecting gear 5, and following nose girder connecting gear 5 comprises the bearing 13 that is arranged on the described base 1, be arranged on roller 8 above the described bearing 13, drive the jacking cylinder 6 that bearing 13 moves up, and jacking cylinder 6 is arranged on the base 1.When the piston rod of jacking cylinder 6 was in retracted state, roller 8 was lower than the upper surface of base 1, and following nose girder 9 is supported by base 1, and when the piston rod of jacking cylinder 6 stretched out, roller 8 rose to and is higher than base 1, and following nose girder 9 is supported by roller 8.
Because the width of case beam is wider than the distance between movable supporting legs two telescopic masts 2, telescopic mast 2 can produce interference to advancing the beam process, dying is hinged on telescopic mast 2 end of base 1, and side is set on the base 1 changes cylinder 12, and the piston rod that this side is changeed cylinder 12 is connected with a joint telescopic mast unit of bottommost.Sliding beam dolly is before the tote box beam advances on the following nose girder 9, and side is changeed cylinder 12 actions, drives telescopic mast 2 and outwards rotates around pin joint, provides the space for advancing beam, and the case beam is moved forward smoothly, does not produce interference.
The movable supporting legs of bridge erecting machine of present embodiment has multiple function and state, has played the support girder, supports down nose girder 9, has transmitted down effect such as nose girder 9, is further described below in conjunction with the work progress of whole bridge formation machine action and the state to present embodiment:
At first, after putting in place, movable supporting legs movable supporting legs is locked on the case beam by locking mechanism, Beam transportation vehicle fortune beam puts in place, make Beam transportation vehicle butt joint nose girder 9 down by the contraposition supporting leg of finely tuning down nose girder 9 afterbodys, the piston rod of jacking this moment cylinder 6 is in retracted state, following nose girder 9 is supported by the base 1 of movable supporting legs, the hydraulic mechanism 4 control telescopic masts 2 of each telescopic mast unit are in retracted mode, the side that connects telescopic mast 2 is changeed the piston rod withdrawal of cylinder 12, telescopic mast 2 is outwards launched, be beneficial to passing through smoothly of case beam; Sliding then beam dolly tote box beam on following nose girder 9 puts in place, the piston rod that the side that is connected with telescopic mast 2 is changeed cylinder 12 stretches out, telescopic mast 2 is recycled into the state vertical with base 1, the hydraulic mechanism 4 that then connects the telescopic mast unit drives telescopic mast 2 and stretches out, telescopic mast 2 is in high state, telescopic mast 2 supports girder, the rear fulcrum when working as the bridge formation machine.
Then lifting overhead traveling crane hanging beam carries out setting up of case beam; After box beam erection is intact, the telescopic mast 2 of movable supporting legs is regained, telescopic mast 2 is in minimum state, descend nose girder 9 to move forward to assigned address then, remove the locking between movable supporting legs and the case beam, build bridge then 0.1 meter of the jack jacking of machine rear support leg, movable supporting legs comes to nothing and makes movable supporting legs move forward to assigned address by the guide rail on the following nose girder 9 by hanging mechanism 3, the machine rear support leg of building bridge then falls 0.1 meter to original state, by locking mechanism movable supporting legs is locked on the case beam, this moment, movable supporting legs was positioned at the front end of bridge formation machine.
Descend the jacking cylinder 6 of nose girder connecting gear 5 bottoms to drive nose girder connecting gear 5 risings down then, make down the roller 8 of nose girder connecting gear 5 support nose girder 9 down, descend nose girder 9 to move forward to assigned address then, after following nose girder 9 moves into place, the jacking cylinder 6 of following nose girder connecting gear 5 bottoms drives nose girder connecting gear 5 declines down, and nose girder 9 is dropped down onto on the base 1; Girder moves forward to assigned address, begins next work cycle.
In the above course of work, only described some actions relevant with movable supporting legs of bridge formation machine, other action of bridge formation machine is not given unnecessary details at this.
Claims (4)
1, a kind of movable supporting legs of bridge erecting machine, it is characterized in that: it comprises base (1), bottom-hinged is at a pair of telescopic mast (2) at described base (1) both ends, being arranged on being used on the described base (1) is locked in locking mechanism on the case beam to described base (1), and drives the hanging mechanism (3) that described movable supporting legs moves forward and backward; Described telescopic mast (2) is made up of the multi-joint telescoping pole unit, described each telescopic mast unit socket successively, and described each telescopic mast unit disposes its flexible hydraulic mechanism (4) of control respectively;
Described movable supporting legs also comprises nose girder connecting gear (5) down, described down nose girder connecting gear (5) comprises the bearing (13) that is arranged on the described base (1), be arranged on roller (8) above the described bearing (13), drive the jacking unit that described bearing (13) moves up, and described jacking unit is arranged on the described base (1).
2, movable supporting legs of bridge erecting machine according to claim 1, it is characterized in that: described locking mechanism comprises securing rod (7), the nut that matches with described securing rod (7), offers the through hole that cooperates with described securing rod (7) on the described base (1).
3, movable supporting legs of bridge erecting machine according to claim 1 is characterized in that: described hanging mechanism (3) comprises the slide (10) that is fixedly installed on the described base (1), drives the motor (11) that described slide (10) moves on guide rail.
4, movable supporting legs of bridge erecting machine according to claim 1, it is characterized in that: described base (1) is provided with side changes cylinder (12), the piston rod that this side is changeed cylinder (12) is connected with described telescopic mast (2), and it is the center of rotation rotation with the pin joint of itself and described base (1) that the piston rod of described side commentaries on classics cylinder (12) drives described telescopic mast (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920141742U CN201390932Y (en) | 2009-02-18 | 2009-02-18 | Movable supporting leg of bridge erecting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920141742U CN201390932Y (en) | 2009-02-18 | 2009-02-18 | Movable supporting leg of bridge erecting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390932Y true CN201390932Y (en) | 2010-01-27 |
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ID=41597755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920141742U Expired - Lifetime CN201390932Y (en) | 2009-02-18 | 2009-02-18 | Movable supporting leg of bridge erecting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390932Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487235B (en) * | 2009-02-18 | 2012-07-11 | 苏州大方特种车辆有限公司 | Movable supporting legs of bridge erecting machine |
| CN110904863A (en) * | 2019-12-09 | 2020-03-24 | 中铁第五勘察设计院集团有限公司 | Beam changing method with foldable beam changing machine |
-
2009
- 2009-02-18 CN CN200920141742U patent/CN201390932Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487235B (en) * | 2009-02-18 | 2012-07-11 | 苏州大方特种车辆有限公司 | Movable supporting legs of bridge erecting machine |
| CN110904863A (en) * | 2019-12-09 | 2020-03-24 | 中铁第五勘察设计院集团有限公司 | Beam changing method with foldable beam changing machine |
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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 |
Granted publication date: 20100127 Effective date of abandoning: 20090218 |