CN101956369B - Guide beam type bridge erector - Google Patents
Guide beam type bridge erector Download PDFInfo
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- CN101956369B CN101956369B CN200910115756XA CN200910115756A CN101956369B CN 101956369 B CN101956369 B CN 101956369B CN 200910115756X A CN200910115756X A CN 200910115756XA CN 200910115756 A CN200910115756 A CN 200910115756A CN 101956369 B CN101956369 B CN 101956369B
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Abstract
The invention relates to a lower guide beam type bridge erector comprising a main beam and a lower guide beam, wherein the main beam is provided with a main beam front landing leg and a main beam rear landing leg; the lower bottom surface of the lower guide beam is respectively provided with a lower guide beam front landing leg, a movable landing leg and a lower guide beam contraposition landing leg from front to back, wherein the movable landing leg can not only support the lower guide beam, but also support the main beam; the lower guide beam contraposition landing leg can not only be fixedly connected with the rear end part of the lower guide beam, but also be fixedly connected with the main beam rear landing leg; when the lower guide beam contraposition landing leg is connected with the lower guide beam, the lower guide beam contraposition landing leg can be used as a rear pivot of the lower guide beam supporting on a bridge surface and also be used as a power mechanism under the condition that the lower guide beam moves forwards; and when the lower guide beam contraposition landing leg is fixedly connected with the main beam rear landing leg, the lower guide beam contraposition landing leg can be used as the rear pivot of the main beam supporting on the bridge surface. The invention ensures that the lower guide beam contraposition landing leg can not only be used for supporting and carrying the lower guide beam, but also be used for carrying the main beam through the design; and in addition, the invention has the advantages of very convenient operation and labor saving.
Description
Technical field
The present invention relates to a kind of nose girder formula bridge formation machine.
Background technology
According to China's Mid-term and Long-term Plan of the Railway Network, about 1.2 ten thousand kilometers of Line for Passenger Transportation, high-speed railway that building at present neutralizes is about to construction, the bridge proportion surpasses 50% in the circuit.Wherein Beijing-Shanghai High-Speed Railway bridge ratio accounts for about 80%.The main beam type of these bridges is whole hole 32m, 24m, 20m prefabricated case beam, heavily about 900 tons of the heaviest 32m two-wire whole opening box girder, thereby construction has that the beam type is many, lift heavy big, set up the precision height, need to adapt to that change is striden and curve such as sets up at characteristics.Beijing-Shanghai High-Speed Railway need be passed through cable-carried arch bridge and be set up the case beam, and some Line for Passenger Transportation is located in hills and mountain area, and the bridge formation machine need set up the case beam by the tunnel.
Existing bridge formation machine generally all exists following defective: bridge formation machine cross dimensions is big, need dismantle when transition of bridge formation building site or mistake tunnel.When the bridge formation machine operation, girder and following nose girder move forward inconvenience more.And move girder forward and following nose girder relies on the different handling article of two covers, not only complicated on the structure, and increased the manufacturing cost of whole bridge formation machine.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the invention is to provide a kind of nose girder formula bridge formation machine that makes things convenient for girder and following nose girder to move forward and backward.
In order to reach above purpose, the scheme that the present invention adopts is: a kind of nose girder formula bridge formation machine, comprise girder and following nose girder, described girder leading section is provided with the girder front leg strut, rearward end is provided with the girder rear support leg, be respectively equipped with down the nose girder front leg strut on the bottom surface of described nose girder down backward in the past, movable supporting legs, following nose girder contraposition supporting leg, described movable supporting legs is the structure that can stretch up and down, and described movable supporting legs can move forward and backward along bridge floor or following nose girder, described movable supporting legs can be used as described down nose girder and is supported in a fulcrum on the bridge floor, when described movable supporting legs protrudes upward, described movable supporting legs can be used as the fulcrum that described girder is supported in bridge floor, described nose girder contraposition supporting leg down both can be fixedlyed connected with the described rearward end of nose girder down, also can fixedly connected with described girder rear support leg, described nose girder contraposition supporting leg down is provided with power unit, this power unit can drive described nose girder contraposition supporting leg down and move forward, when described following nose girder contraposition supporting leg is connected with described following nose girder, described down nose girder contraposition supporting leg can be used as down nose girder and is supported on rear fulcrum on the bridge floor, and under the described down situation that nose girder moves forward, described nose girder contraposition supporting leg down also can be used as actuating unit; When described following nose girder contraposition supporting leg is fixedlyed connected with described girder rear support leg, described down nose girder contraposition supporting leg can be used as girder and is supported on rear fulcrum on the bridge floor, and under the situation that described girder moves forward, described nose girder contraposition supporting leg down also can be used as actuating unit.
Preferably, described nose girder contraposition supporting leg down comprises supporting leg crossbeam, a pair of free bearing, traveling roller box, oil cylinder, the both ends of described supporting leg crossbeam are installed in respectively on the described free bearing, described traveling roller box is connected with the supporting leg crossbeam by described free bearing, and described traveling roller box can drive described down nose girder contraposition supporting leg and move forward, and described oil cylinder is arranged on the bottom surface of supporting leg crossbeam and is used for described nose girder contraposition outrigger support down in bridge floor.
Because the present invention has adopted above technical scheme, obtain following beneficial effect: be designed to and be connected with following nose girder rearward end by descending nose girder contraposition supporting leg, can be connected with the girder rear support leg again, and also carry power unit on the following nose girder supporting leg, like this when moving forward girder and following nose girder, following nose girder contraposition supporting leg all can be used as the strong point, and as dynamic structure, in addition, because movable supporting legs can move forward and backward, and movable supporting legs both can be used as the strong point of girder, also can be used as down the supporting leg of nose girder, relied on nose girder contraposition supporting leg and these two parts that energy front and back are transferred of movable supporting legs down like this, just girder or following nose girder phase front can be moved, operation is very easy, laborsaving, and, make the manufacturing cost of bridge formation machine also be reduced by substituting two original cover carrying mechanisms.
Description of drawings
Accompanying drawing 1 is the structural representation of nose girder formula bridge formation machine of the present invention;
Accompanying drawing 3 is structural representations of nose girder front leg strut under the nose girder formula bridge formation machine of the present invention;
Accompanying drawing 5 is structural representations of nose girder formula movable supporting legs of bridge erecting machine of the present invention;
Accompanying drawing 6 is nose girder contraposition leg structure schematic diagrames under the nose girder formula bridge formation machine of the present invention;
Accompanying drawing 7 is nose girder formula crane ' s major girder structural representations of the present invention;
Accompanying drawing 8 is structural representations of nose girder formula girder front leg strut of the present invention;
Accompanying drawing 9 is structural representations of nose girder formula girder rear support leg of the present invention;
Accompanying drawing 10 is that nose girder formula girder front leg strut of the present invention reaches nose girder front leg strut working state structure schematic diagram down;
Accompanying drawing 11 is front views of nose girder formula bridge formation machine lifting overhead traveling crane of the present invention;
Accompanying drawing 12 is lateral views of nose girder formula bridge formation machine lifting overhead traveling crane of the present invention;
Accompanying drawing 13 is structural representations of nose girder formula movable supporting legs of bridge erecting machine feeding beam state of the present invention;
Accompanying drawing 14 is structural representations of nose girder formula movable supporting legs of bridge erecting machine duty of the present invention;
Wherein: 1, girder; 101, girder unit; 102, rear support leg flanged plate; 103, front leg strut flanged plate; 2, girder front leg strut; 201, first telescopic mast; 202, telescopic oil cylinder; 203, top rail; 204, overturning oil cylinder; 205, first tie-beam; 206, the 3rd traveling roller box; 3, girder rear support leg; 301, the bent leg of C shape; 302, straight leg; 303, second telescopic mast; 304, the first traveling roller box; 4, following nose girder; 401, carry beam dolly aisle square steel on the back; 402, orbit square steel voluntarily; 403, hanging rail square steel; 5, following nose girder front leg strut; 501, supporting leg door frame; 502, hang wheel; 503, first oil cylinder; 504, second spiral top; 6, following nose girder contraposition supporting leg; 601, supporting leg crossbeam; 602, the second traveling roller box; 603, second oil cylinder; 604, free bearing; 7, movable supporting legs; 701, base; 702, the 3rd telescopic mast; 703, locking mechanism; 704, hanging mechanism; 705, oil cylinder; 706, following nose girder connecting gear; 707, bearing; 708, roller; 709, jacking unit; 8, lifting overhead traveling crane; 801, crownblock beam; 802, vertical shift oil cylinder; 803, fixed pulley group; 804, running block; 805, sideslip oil cylinder; 9, suspender.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Referring to the nose girder formula bridge formation machine shown in the accompanying drawing 1, it comprises girder 1, be installed in the girder front leg strut 2 of girder 1 leading section, be installed in main beam rear end portion girder rear support leg 3, be installed in the girder below following nose girder 4, be installed in down the nose girder leading section following nose girder front leg strut 5, be installed in down the following nose girder contraposition supporting leg 6 of nose girder rearward end, be arranged on down movable supporting legs 7 on the nose girder 4 movably, also movably be provided with lifting overhead traveling crane 8 and suspender 9 on the girder 1.Movable supporting legs 7 is the structure that can stretch up and down, and it both can be used as down nose girder 4 and has been supported in a fulcrum on the bridge floor, and when movable supporting legs 7 protruded upward, it also can be used as the fulcrum that girder 1 is supported in bridge floor.
As shown in Figure 7, girder 1 is a twin beams box-shaped formula, and every group of girder is made of four joint girder unit 101, and vertically symmetric design can realize two-way operation.Concrete structure is: the rearward end of girder is established rear support leg flanged plate 102, and the girder leading section is provided with front leg strut flanged plate 103, and rear support leg flanged plate 102 both can be connected with described girder rear support leg 3, also can be connected with girder front leg strut 2; Front leg strut flanged plate 103 both can be connected with girder front leg strut 2, also can be connected with girder rear support leg 3.Girder front leg strut 2 and girder rear support leg 3 all are both can be connected the leading section of girder 1, also can be connected the rearward end of girder 1.Each saves between the girder unit 101 splices by burnished bolt and junction plate, and whole girder 1 is the main load bearing component of bridge formation machine.The top of girder 1 is provided with the chute board for lifting overhead traveling crane displacement slippage.There is the connection crossbeam at girder 1 two ends, connect on the crossbeam hoist engine can be installed.Girder 1 begins to be provided with backward a plurality of linkage unit (not shown)s from leading section, each linkage unit can be connected with girder front leg strut 2, like this when girder front leg strut 2 is connected on the different linkage units, distance between girder front leg strut 2 and the girder rear support leg 3 is different, the case beam that like this should the bridge formation machine just can set up different spans, case beam as 32m, 24m, 20m, and when girder front leg strut 2 was changed the linkage unit that is connected, movable supporting legs 7 moved forward the front fulcrum of back as girder 1 along following nose girder 4.
As shown in Figure 8, girder front leg strut 2 comprises two first telescopic masts 201 being connected with girder 1, is used to the overturning oil cylinder 204 controlling the flexible telescopic oil cylinder 202 of first telescopic mast, be used to control the upset of first telescopic mast.It is hinged by free bearing with top rail 203 that the top of first telescopic mast 201 is provided with top rail 203, the first telescopic masts 201, and top rail 203 is connected with girder 1.First telescopic mast 201 is connected with the piston rod of overturning oil cylinder 204, and overturning oil cylinder 204 is arranged on the inside of first telescopic mast 201, when the piston rod of overturning oil cylinder 204 is regained, makes 201 upsets of first telescopic mast.Be provided with first tie-beam 205 between two first telescopic masts 201, first tie-beam 205 is provided with the 3rd traveling roller box 206, the 3rd traveling roller box 206 cooperates with first track on the following nose girder 4 and can slippage on first track, thereby drives girder front leg strut 2 and whole girder 1 moves.
As shown in Figure 9, girder rear support leg 3 comprises the bent leg 301 of C shape, and the upper end of the bent leg 301 of C shape is hinged by free bearing and girder 1, and the bottom of the bent leg 301 of C shape is connected with straight leg 302.Be provided with second telescopic mast 303 in the straight leg 302, second telescopic mast 303 stretches out with girder 1 and is connected when shifting between bridge formation machine via hole or bridge, can make himself stable.Straight leg 302 bottoms are connected with the first traveling roller box and sleeper beam (among the figure for illustrating), girder rear support leg 3 moves on the case beam by the first traveling roller box, the sleeper beam bottom is equipped with first spiral top, and when zero load, first spiral top is as the support and the governor motion of girder rear support leg 3.When on the girder 1 load being arranged, this moment is by the back support component of movable supporting legs 7 as girder 1.
Following nose girder 4 supporting parts are case beam section structure, and the nose girder of auxiliary via hole partly is the capable cross section structure of groove.Following nose girder 4 end faces are laid and are carried beam dolly aisle square steel 41 on the back, the orbit square steel voluntarily 42 that uses when following nose girder 4 bottom surfaces are provided with for time nose girder 4 via holes, and following nose girder 1 bottom surface dual-side also is provided with the hanging rail square steel 43 that movable supporting legs 7 is used for vertical shift, referring to Fig. 2.Following nose girder 4 tops are equipped with first guide rail that matches with the 3rd traveling roller box 206, and following nose girder 4 bottoms are provided with second guide rail, and movable supporting legs 7 and following nose girder front leg strut 5 can move on second guide rail.Following nose girder 4 begins also to be provided with backward a plurality of linkage units from leading section, each linkage unit can be connected with following nose girder front leg strut 5, when nose girder front leg strut 5 is connected on the different linkage units so instantly, distance between following nose girder front leg strut 5 and the following nose girder contraposition supporting leg 6 is different, should just can realize setting up the beam case of different spans by the bridge formation machine like this, beam case as 32m, 24m, 20m, and when nose girder front leg strut 5 was changed the linkage unit that is connected down, movable supporting legs 7 moved forward the back conduct front fulcrum of nose girder 4 down along following nose girder.
As shown in Figure 3, following nose girder front leg strut 5 comprises supporting leg door frame 501, hang wheel 502, be positioned at first oil cylinder 503 of supporting leg door frame 501 inside, the piston rod that is arranged on second spiral top, 504, the first oil cylinders 503 of supporting leg door frame upper end pushes up 504 with second spiral and is connected.When the piston rod of first oil cylinder 503 stretched out, following nose girder front leg strut 5 was connected with following nose girder 4 bottoms by second spiral top 504, and following nose girder 4 is by nose girder front leg strut 5 supports down, load by following nose girder 4, second spiral push up 504, the supporting leg door frame transmits downwards.When the piston rod of first oil cylinder 503 is withdrawn, removed being connected between second spiral top and the following nose girder 4, following nose girder front leg strut 5 502 is hung on second guide rail by hanging wheel, and following nose girder front leg strut 5 can move before and after on second guide rail under the driving of first motor.Following nose girder front leg strut 5 locks schematic diagram referring to accompanying drawing 4 with Dun Ding, and the duty of following nose girder front leg strut 5 and girder front leg strut 2 is referring to shown in the accompanying drawing 10.
As shown in Figure 6, following nose girder contraposition supporting leg 6 comprises the supporting leg crossbeam 601 that the upper end is connected with following nose girder 4, second roller box 602 out of shape that is arranged on supporting leg crossbeam 601 bottoms, the second traveling roller box 602 is power and the rolling running mechanism when descending nose girder 4 and the displacement of bridge formation machine via hole by the 3rd motor-driven.The both ends of supporting leg crossbeam 601 are installed in respectively on the free bearing 604, and the second traveling roller box 602 is connected with supporting leg crossbeam 601 by described free bearing 604.The bottom of supporting leg crossbeam 601 is connected with second oil cylinder 603, and following nose girder contraposition supporting leg 6 can rise under the effect of second oil cylinder 603 and descend, and after fortune beam dolly fortune beam put in place, second oil cylinder 603 was adjusted the height of nose girder 4 down, docks with Beam transportation vehicle.Following nose girder contraposition supporting leg 6 both can be fixedlyed connected with the rearward end of following nose girder 4, also can fixedly connected with girder rear support leg 3, following nose girder contraposition supporting leg 6 is provided with power unit, this power unit can drive down, and nose girder contraposition supporting leg 6 moves forward, when the supporting leg of nose girder contraposition instantly 6 is connected with following nose girder 4, following nose girder contraposition supporting leg 6 can be used as down nose girder 4 and is supported on rear fulcrum on the bridge floor, and under the situation that nose girder 4 moves forward down, following nose girder contraposition supporting leg 6 also can be used as actuating unit; When the supporting leg of nose girder contraposition instantly 6 was fixedlyed connected with girder rear support leg 3, following nose girder contraposition supporting leg 6 can be used as girder 1 and is supported on rear fulcrum on the bridge floor, and under the situation that girder 1 moves forward, following nose girder contraposition supporting leg 6 also can be used as actuating unit.
As shown in Figure 5, movable supporting legs 7 comprises base 701, bottom-hinged is at a pair of the 3rd telescopic mast 702 at base 701 both ends, is arranged on being used on the base 701 base is locked in locking mechanism 703 on the case beam, and drives the hanging mechanism 704 that movable supporting legs 7 moves forward and backward.When movable supporting legs 7 needs were mobile, movable supporting legs 7 moved on second guide rail by hanging mechanism 704.The 3rd telescopic mast 702 is made up of two joint telescopic mast unit, two joint telescopic mast unit sockets.Superposed telescopic mast unit is connected with the piston rod of oil cylinder 705, and when the piston rod of oil cylinder 705 stretched out, superposed telescopic mast unit stretched out, can be as a fulcrum that supports girder 1; When the piston rod of oil cylinder 705 is withdrawn, the withdrawal of superposed telescopic mast unit.Specifically referring to accompanying drawing 13,14.Movable supporting legs 7 also comprises nose girder connecting gear 706 down, following nose girder connecting gear 706 comprises the bearing 707 that is arranged on the base 701, be arranged on roller 708 above the bearing 707, drive the jacking unit 709 that bearing 707 moves up, the jacking unit is arranged on the base 701, when nose girder 4 was advanced instantly, following nose girder 4 was supported on the roller 708 and moves ahead.
Shown in Figure 11,12, lifting overhead traveling crane 8 comprises crownblock beam 801, is arranged on the vertical shift oil cylinder 802 on the girder 1, the piston rod of vertical shift oil cylinder 802 is connected with crownblock beam 801, and crownblock beam 801 can move forward and backward under the effect of vertical shift oil cylinder 802, to adapt to the lifting of different spans beam type.Hoist engine adopts motor second to drive, and can carry out stepless speed regulation, realizes that suspender does not have the lifting of impact and stops hook.Hoist engine is installed in girder 1 rear and front end and connects on the crossbeam 102.Suspender 9 is connected with crownblock beam 801 by pulley assembly.Pulley assembly comprises fixed pulley group 803 and running block 804.Fixed pulley group 803 is arranged on the crownblock beam 801, and it comprises a plurality of pulley sheets, and the pulley sheet is connected with the piston rod of sideslip oil cylinder 805, and the pulley sheet can move laterally along girder 1 under the effect of sideslip oil cylinder 805, the accurate positioning requirements when falling beam to satisfy.Running block 804 is made up of a plurality of pulley sheets and casing, and its bottom is connected with suspender 9.For guaranteeing the hanging beam job safety, hoist engine is provided with two cover check mechanism, and the hoist engine speed end is provided with hydraulic push-rod brake, and the reel baffle plate is provided with the hydraulic tongs disk brake.
Also can be installed in the rear end of girder 1 by the front end of crane ' s major girder front leg strut 2 and girder rear support leg 3 all being arranged to both can be installed in girder 1, so just make the bridge formation machine can realize two-way operation.And when changing girder front leg strut 2 and girder rear support leg 3, the telescopic mast of movable supporting legs 7 risen make it can be as a strong point of girder 1, when changing girder front leg strut 2 and girder rear support leg 3, promptly safety have conveniently like this.
Because movable supporting legs 7 both can be connected down and also can be connected on the nose girder 4 on the girder 1, power and rolling running mechanism when movable supporting legs 7 both can be used as down the displacement of nose girder 4 via holes like this, power and rolling running mechanism when also can be used as the displacement of girder 1 via hole.
Set forth below should bridge formation machine construction operation idiographic flow:
Step 1: after Beam transportation vehicle fortune beam put in place, fine setting is the following nose girder contraposition supporting leg of nose girder afterbody down, and the Beam transportation vehicle butt joint is nose girder down;
The sliding beam of sliding beam dolly on step 2, the fortune beam dolly puts in place, and movable supporting legs protrudes upward to the girder bottom and holds out against and lock;
Step 3: lifting overhead traveling crane hanging beam, sliding beam dolly is return Beam transportation vehicle, and the releasing Beam transportation vehicle is connected with following nose girder, and Beam transportation vehicle returns Liang Chang fortune beam;
Step 4: nose girder retreats to assigned address under the bridge floor, and the lifting overhead traveling crane falls beam to the exact position.
Claims (2)
1. nose girder formula bridge formation machine, comprise girder (1) and following nose girder (4), described girder (1) leading section is provided with girder front leg strut (2), girder (1) rearward end is provided with girder rear support leg (3), be respectively equipped with down nose girder front leg strut (5) on the bottom surface of described nose girder (4) down backward in the past, movable supporting legs (7), following nose girder contraposition supporting leg (6), described movable supporting legs (7) is the structure that can stretch up and down, and described movable supporting legs (7) can move forward and backward along bridge floor or following nose girder (4), described movable supporting legs (7) can be used as described down nose girder (4) and is supported in a fulcrum on the bridge floor, when described movable supporting legs (7) when protruding upward, can be used as described girder (1) and be supported in a fulcrum of bridge floor, it is characterized in that: described nose girder contraposition supporting leg (6) down both can be fixedlyed connected with the described rearward end of nose girder (4) down, also can fixedly connected with described girder rear support leg (3), described nose girder contraposition supporting leg (6) down is provided with power unit, this power unit can drive described nose girder contraposition supporting leg (6) down and move forward, when described down nose girder contraposition supporting leg (6) and described time nose girder (4) when being connected, described down nose girder contraposition supporting leg (6) can be used as down nose girder (4) and is supported on rear fulcrum on the bridge floor, and under the described down situation that nose girder (4) moves forward, described nose girder contraposition supporting leg (6) down also can be used as actuating unit; When described down nose girder contraposition supporting leg (6) and described girder rear support leg (3) when fixedlying connected, described down nose girder contraposition supporting leg (6) can be used as girder (1) and is supported on rear fulcrum on the bridge floor, and under the situation that described girder (1) moves forward, described nose girder contraposition supporting leg (6) down also can be used as actuating unit.
2. nose girder formula bridge formation machine according to claim 1, it is characterized in that: described nose girder contraposition supporting leg (6) down comprises supporting leg crossbeam (601), traveling roller box (602), oil cylinder (603) and a pair of free bearing (604), the both ends of described supporting leg crossbeam (601) are installed in respectively on the described free bearing (604), described traveling roller box (602) is connected with supporting leg crossbeam (601) by described free bearing (604), and described traveling roller box (602) can drive described down nose girder contraposition supporting leg (6) and move forward, and described oil cylinder (603) is arranged on the bottom surface of supporting leg crossbeam (601) and is used for described nose girder contraposition supporting leg (6) down is supported on bridge floor.
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| CN200910115756XA CN101956369B (en) | 2009-07-20 | 2009-07-20 | Guide beam type bridge erector |
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| CN200910115756XA CN101956369B (en) | 2009-07-20 | 2009-07-20 | Guide beam type bridge erector |
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| CN101956369A CN101956369A (en) | 2011-01-26 |
| CN101956369B true CN101956369B (en) | 2011-11-30 |
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| CN109083019A (en) * | 2018-09-17 | 2018-12-25 | 安徽德马泰格起重机械有限公司 | A kind of lower guide fixed-point sling erecting bridge machine |
| CN110374000B (en) * | 2019-06-24 | 2021-06-01 | 中国路桥工程有限责任公司 | Bridge girder erection machine for safe construction of overseas railway laying and erecting engineering |
| CN111676816B (en) * | 2020-05-28 | 2022-03-29 | 山东潍莱高速铁路有限公司 | Steel truss girder and frame pier steel beam construction method |
| CN113699902B (en) * | 2021-09-28 | 2023-04-07 | 中铁第五勘察设计院集团有限公司 | Beam changing equipment |
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| CN101956369A (en) | 2011-01-26 |
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