CN101949133B - Straddle type bridge girder erection machine - Google Patents
Straddle type bridge girder erection machine Download PDFInfo
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- CN101949133B CN101949133B CN201010298633.7A CN201010298633A CN101949133B CN 101949133 B CN101949133 B CN 101949133B CN 201010298633 A CN201010298633 A CN 201010298633A CN 101949133 B CN101949133 B CN 101949133B
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Abstract
The invention provides a straddle type bridge girder erection machine, relating to the technical field of bridge girder erection machines. The girder of the machine is provided with two crane carriages which can move along the rail at the top of a longitudinal beam, the rear part of the grider is provided with a rear ground jack device, the front part of the grider is provided with a front ground jack device, the front end of grider is provided with an auxiliary ground jack device, the lower part of the rear ground jack device is provided with a cart traveling device, and the ground jack of the front ground jack device is provided with a horizontal guide pulley device, a pinch roller device and a lower riding wheel device driven by a pinch roller driving mechanism. In the invention, the straddle type bridge girder erection machine can carry out anchorage treatment on the bridge girder erection machine and automatically pass through the bridge opening with cantilevers without the lower guide beam and other auxiliary structures. As a result, the problem of small curve radius girder erection is solved. The straddle type bridge girder erection machine of the invention features simple structure, convenient operation and greatly improves operation efficiency and operation reliability. The machine is especially applicable to erection of 900-ton, 750-ton and 550-ton prestressed reinforced concrete boxes for the rapid transit railway and the railway line for passenger traffic and to erection of ordinary railways, roads and bridges.
Description
Technical field
The present invention relates to Bridge Erector technical field.
Background technology
At present, common Bridge Erector type has a straddle type and two straddle types both at home and abroad, so-called two straddle type Bridge Erectors refer to crane ' s major girder by before, during and after three outrigger supports, thereby form two span continuous beam form of structure, while setting a roof beam in place operation, Beam transportation vehicle will wait to set a roof beam in place be transported to bridge formation tail across, on girder, trolley is sling beam, in place across treating that beam is located in frame hole before walking to.According to the operating feature of two straddle type Bridge Erectors, its forward and backward supporting leg spacing need be greater than two hole case beam lengths, therefore two straddle type Bridge Erectors can not be set a roof beam in place on small curve radius (as R<1500m), can not set a roof beam in place at place, next-door neighbour tunnel face, so its range of application is restricted.And an existing straddle type Bridge Erector is because complete machine longitudinal size is less, solved a difficult problem for small curve radius operation, but its via hole operation is more complicated all, have plenty of and utilize lower nose girder to carry out via hole, has plenty of the anchorage of utilization via hole, and these two kinds of via hole modes all exist that operation is loaded down with trivial details, inefficiency, and have certain potential safety hazard, to the shortcoming such as operating environment adaptive capacity is poor.
Summary of the invention
The object of this invention is to provide an a kind of straddle type Bridge Erector, utilize the present invention can realize a straddle type Bridge Erector without lower nose girder and other auxiliary construction, also without Bridge Erector is carried out to anchorage processing, cantilever via hole voluntarily; And do not carrying out complete machine disassemble in the situation that, can carry out the operation of setting a roof beam in place of first and last hole by single-track tunnel; Solved the set a roof beam in place difficult problem of operation of small curve radius, and simple in structure, operation convenient, greatly improved the reliability of operating efficiency and work.Be specially adapted to setting up of 900 tonnes of high-speed railway and Lines for Passenger Transportation, 750 tonnes and 550 tonnes prestressed reinforced concrete case beams, also can be used for setting up of common railway and highway bridge.
Main technical schemes of the present invention is: an a kind of straddle type Bridge Erector, comprise girder l, it is characterized in that primary structure has: girder is provided with two longitudinally trolleys of back track traveling, the rear portion of girder is provided with rear landing leg device, the front portion of girder is provided with front leg strut device, and the front end of girder is provided with auxiliary support leg device; The bottom of rear landing leg device is provided with cart walking device, and cart walking device is provided with cart driving mechanism; Front leg strut device is provided with supporting leg, and supporting leg is provided with horizontally-guided wheel apparatus, pressing wheel device, pinch roller driving mechanism, and the lower support wheel device being driven by pinch roller driving mechanism, and pinch roller hangs on the track of girder both sides.
The bottom of the cart walking device of the bottom of described rear landing leg device is provided with rear traversing runner device that can traversing operation; The bottom of front leg strut device is provided with can the front traversing runner device of traversing operation.By hydraulic drive mechanism or electric transmissio mechanism, can realize the transverse shifting of complete machine.
The supporting leg of described front leg strut device is triangular in shape, has the jack of turning back in vertical telescopic regulating mechanism and upright plane.
The jack of turning back in described vertical telescopic regulating mechanism and upright plane is: have fixedly steel pin of the diagonal brace of telescopic head tree, scalable adjusting and hydraulic pushing; the hydraulic pushing fixedly effect of steel pin is safeguard protection effect, prevents that front leg strut is to front slide.
Telescopic head tree comprises on column and saves under overcoat and column and save inner sleeve, and the diagonal brace of scalable adjusting comprises saving on diagonal brace and in overcoat, diagonal brace, saves inner sleeve and with the fine adjustment of leading screw.
Described auxiliary support leg device is provided with telescopic upright of frame and hydraulic jacking device.
Described cart driving mechanism is electrodynamic type structure, and described pinch roller driving mechanism is fluid pressure type structure.
Described pinch roller driving mechanism is oil hydraulic type constant force driving mechanism.
Rear support leg cart walking device drives crane ' s major girder to ask to slide in the train of triangle front leg strut and moves ahead, and carries out cantilever via hole.
Good effect of the present invention is: overcomes the deficiency of prior art, utilized the present invention can realize a straddle type Bridge Erector without lower nose girder and other auxiliary construction, and also without Bridge Erector is carried out to anchorage processing, cantilever via hole voluntarily; And do not carrying out complete machine disassemble in the situation that, can carry out the operation of setting a roof beam in place of first and last hole by single-track tunnel; Solved the set a roof beam in place difficult problem of operation of small curve radius, and simple in structure, operation convenient, greatly improved the reliability of operating efficiency, safety and work.Be specially adapted to setting up of high-speed railway and 900 tonnes, 750 tonnes and 550 tonnes prestressed concrete box girders of Line for Passenger Transportation, also can be used for setting up of common railway and highway bridge.
Accompanying drawing explanation
Figure l is that the structural representation of a preferred embodiment of the present invention is always schemed.
Fig. 2 a, Fig. 2 b are respectively 2 horizontal view profiles of piece number 2 front leg strut devices in figure l.
Fig. 3 a, Fig. 3 b are respectively enlarged drawing and the horizontal view profiles of piece number 3 front leg strut devices in figure l.
Fig. 4 is the horizontal view profile of piece number 4 auxiliary support leg devices in figure l.
Fig. 5 a, Fig. 5 b are respectively the landing leg stretching working state schematic representations of piece number 3 in figure l.
Fig. 6 is job step one schematic diagram of Bridge Erector while normally setting a roof beam in place operation.
Fig. 7 is job step two schematic diagrames of Bridge Erector while normally setting a roof beam in place operation.
Fig. 8 is job step three schematic diagrames of Bridge Erector while normally setting a roof beam in place operation.
Fig. 9 is job step four schematic diagrames of Bridge Erector while normally setting a roof beam in place operation.
Figure 10 is job step five schematic diagrames of Bridge Erector while normally setting a roof beam in place operation.
Job step one schematic diagram when Figure 11 a, Figure 11 b are the operation of Bridge Erector via hole.
Job step two schematic diagrames when Figure 12 is the operation of Bridge Erector via hole.
Job step three schematic diagrames when Figure 13 a, figure l3b are the operation of Bridge Erector via hole.
In figure l～Figure 13, each label implication is.
Fixedly steel pin, 12-pinch roller system, the horizontal train of 13-, 14-subiculum train, the front traversing runner device of 15-, the telescopic upright of frame of 16-, 17-hydraulic jacking system of the diagonal brace of traversing runner device, the telescopic head tree of 9-, the scalable adjusting of 10-, 11-hydraulic pushing after the auxiliary support leg device of 1-girder, 2-rear landing leg device, 3-front leg strut device, 4-, 5-trolley, 6-electrical control system, 7-cart walking device, 8-.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, do into detailed description, but not as a limitation of the invention.
In figure l～Figure 12, this straddle type Bridge Erector, comprises girder l, girder l is provided with the trolley 5 of two longitudinally back track travelings, the rear portion of girder l is provided with rear landing leg device 2, and the front portion of girder l is provided with front leg strut device 3, and the front end of girder l is provided with auxiliary support leg device 4; The bottom of rear landing leg device 2 is provided with cart walking device 7, and cart walking device 7 is provided with cart driving mechanism; Front leg strut device 3 is provided with supporting leg, and supporting leg is provided with horizontally-guided wheel apparatus 13, pressing wheel device 12, pinch roller driving mechanism, and the lower support wheel device 14 being driven by pinch roller driving mechanism, and pinch roller hangs on the track of girder l two.The bottom of the cart walking device 7 of the bottom of rear landing leg device 2 be provided with can traversing operation rear traversing runner device 8 (structure is: have hydraulic cylinder horizontal-top to postpone supporting leg lower transverse beam, lower transverse beam is supported on the slide block of traversing slideway, and figure slightly; Or be electrodynamic movable structure); The bottom of front leg strut device 3 be provided with can traversing operation before traversing runner device 15 (structure is: have the horizontal pushing tow front leg strut of hydraulic cylinder lower transverse beam, lower transverse beam is supported on the slide block of traversing slideway, and figure slightly; Or be electrodynamic movable structure).The supporting leg of front leg strut device 3 is triangular in shape, has the jack of turning back in vertical telescopic regulating mechanism and upright plane.The jack of turning back in vertical telescopic regulating mechanism and upright plane is: have fixedly steel pin 11 (effect is safeguard protection effect, prevents that front leg strut is to front slide) of the diagonal brace 10 of telescopic head tree 9, scalable adjusting and hydraulic pushing.Auxiliary support leg device (4) is provided with telescopic upright of frame 16 and hydraulic jacking device 17.Cart driving mechanism is electrodynamic type driving mechanism, or is fluid pressure type driving mechanism.Pinch roller driving mechanism is oil hydraulic type constant force driving mechanism.
This without nose girder without anchorage one straddle type Bridge Erector.Girder l is one of Bridge Erector major bearing structures, is bearing on rear support leg 2, front leg strut 3 and auxiliary supporting leg 4, and rear support leg 2 is main stressed supporting leg with front leg strut 3, and while setting a roof beam in place operation, Bridge Erector only relies on rear support leg 2 and 3 holding capacity of front leg strut.Auxiliary supporting leg 4 is the auxiliary square pier platform of going forward when due to the unloaded via hole of Bridge Erector only.One hole erection is complete, when Bridge Erector need move forward to the operation of next hole, walking system 7 drives Bridge Erector complete machine (except front leg strut 3) to ask straight skidding in front leg strut 3 trains, until auxiliary supporting leg 4, arrive after the pier of the place ahead, shrink front leg strut 3 bottom expansion couplings and depart from bridge pier, utilize front leg strut top train power drive front leg strut to proceed to the place ahead pier, extending front leg strut 3 bottom expansion couplings is bearing on abutment, shrink auxiliary supporting leg 4 bottom expansion couplings to departing from bridge pier, walking system 7 drives Bridge Erector complete machines (except front leg strut 3) to ask that in front leg strut 3 trains straight skidding is to treating that chord position puts, thereby realize, do not need nose girder and the anchorage complete machine object of cantilever via hole voluntarily.Electrical control system 6 is being controlled Bridge Erector and is being transported the whole operation programs of operation of setting a roof beam in place, and provides comprehensive security protection means in order to guarantee the safety of fortune frame operation.
The machine combines the advantage of two straddle type Bridge Erectors and an existing straddle type Bridge Erector, realized a straddle type Bridge Erector without lower nose girder and other auxiliary construction, also without Bridge Erector is carried out to anchorage processing, get final product cantilever via hole voluntarily, simultaneously, do not carrying out complete machine disassemble in the situation that, the machine can also be carried out the operation of setting a roof beam in place of first and last hole by single-track tunnel.
1. Bridge Erector adopts without nose girder one straddle type form of structure, abandoned time nose girder structure, in the course of work also without anchorage, complete machine can cantilever via hole voluntarily, removed an existing straddle type Bridge Erector via hole at present nose girder repeatedly pump or every hole pier pushes up numerous and diverse operation process of pre-buried anchorage, greatly improved operational security and operating efficiency, solved first and last hole simultaneously and set up the caused many drawbacks of nose girder at present.
2. front leg strut device 3 is provided with telescopic head tree 9, the diagonal brace 10 of scalable adjusting, hydraulic pushing and fixes
Pin 11, pinch roller are 12, horizontal train 13, subiculum train 14 and front traversing runner device 15.Supporting leg lower end is bearing on pier need not anchorage, upper end is provided with support roller, pinch roller and horizontal wheels, girder is between train, make crane ' s major girder can be in train straight skidding, the effect by pinch roller simultaneously can produce enough stabilizing moments, and supporting leg is not toppled over, thereby form rock-steady structure with rear supporting leg of bridge erecting machine, by crane ' s major girder straight skidding, and then make the auxiliary supporting leg of girder front end move to the place ahead bridge pier, realize without nose girder the via hole voluntarily without anchorage.
3. in rear support leg 2 and front leg strut 3 devices, be equipped with traversing runner device.Complete machine can enter by traversing runner device
The traversing operation of row, thus the requirement of setting up twin beams solved.
See Fig. 5 a, Fig. 5 b, by the lifting of auxiliary support leg device 4, realize and under column, save inner sleeve 22 and save on column
Lifting action in overcoat 2l, realizes simultaneously and in diagonal brace, saves inner sleeve 18 and on diagonal brace, save the expanding-contracting action in overcoat 20.For being difficult to of adapting to that the angle of diagonal brace after landing leg stretching changes and change in length is brought installs and the impact of withdrawing steel pin, by screwing the fine adjustment 19 with leading screw, can realize the fine setting variation of diagonal brace length.
Its set a roof beam in place work operations process and via hole operating type as follows.
Referring to Fig. 6, Bridge Erector is in treating frame state, and Beam transportation vehicle fortune beam is to Bridge Erector afterbody.
Referring to Fig. 7, Beam transportation vehicle fortune beam puts in place, and front trolley first is sling.
Referring to Fig. 8, the play front end of concrete beam of trolley, the rear end of concrete beam in Beam transportation vehicle holder, synchronously moves ahead.
Referring to Fig. 9, after concrete beam suspension centre arrive after during trolley lifting position, rear trolley carries out second crane operation of slinging.
Referring to Figure 10, former and later two trolley hanging beams move ahead, and to directly over frame hole time, the beam that falls is in place.
Referring to Figure 11 a, Figure 11 b, Bridge Erector drives the cart walking system of rear support leg, promotes crane ' s major girder and asks that in front leg strut train previous straight skidding moves ahead, and to assisting supporting leg to reach bridge pier top, the place ahead, props auxiliary supporting leg.
Referring to Figure 12, shrink front leg strut, away from Dun Ding, start front leg strut top pinch roller, drive front leg strut to proceed to bridge pier top, the place ahead, stretch out box type column under front leg strut, be supported on Dun Ding.
Referring to Figure 13 a, figure l3b, shrink auxiliary supporting leg column, away from Dun Ding, continue to drive the cart walking system of rear support leg, promote crane ' s major girder and ask that in front leg strut train previous straight skidding moves ahead, to cart walking device, arrive beam-ends and when chord position is put, support in placely, prepare the operation of setting a roof beam in place of next hole.
Existing Bridge Erector has a straddle type and two straddle types both at home and abroad, and two straddle type Bridge Erectors can not be set a roof beam in place on small curve radius (as R<1500m), can not set a roof beam in place at place, next-door neighbour tunnel face, so its range of application is restricted.And a straddle type Bridge Erector does not just have above-mentioned defect, but its via hole operation is more complicated all, have plenty of the nose girder of utilization and carry out via hole, has plenty of the anchorage of utilization via hole, and these two kinds of via hole modes all exist that operation is loaded down with trivial details, inefficiency, and have certain potential safety hazard, to the shortcoming such as operating environment adaptive capacity is poor.And Bridge Erector of the present invention neither needs nose girder also not need anchorage via hole voluntarily.
The present invention is located at and on front outrigger for bridge girder erection machine, is provided with structure and the mechanism that can make girder slide and can keep the stability of supporting leg on bridge pier thereon, then be aided with auxiliary supporting leg just can be under the condition without anchorage without nose girder safe via hole.
Through on probation, effect is fine.
The foregoing is only preferred embodiment of the present invention and oneself, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to replacement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a straddle type Bridge Erector, comprise girder (1), it is characterized in that primary structure has: girder (1) is provided with the trolley (5) of two longitudinally track travelings, the rear portion of girder (1) is provided with rear landing leg device (2), the front portion of girder (1) is provided with front leg strut device (3), and the front end of girder (1) is provided with auxiliary support leg device (4); The bottom of rear landing leg device (2) is provided with cart walking device (7), and cart walking device (7) is provided with cart driving mechanism; Front leg strut device (3) is provided with supporting leg, supporting leg is provided with horizontally-guided wheel apparatus (13), pressing wheel device (12), pinch roller driving mechanism, and the lower support wheel device (14) being driven by pinch roller driving mechanism, pinch roller hangs on the track of girder (1) both sides;
The bottom of the cart walking device (7) of the bottom of described rear landing leg device (2) is provided with rear traversing runner device (8) that can traversing operation; The bottom of front leg strut device (3) be provided with can traversing operation before traversing runner device (1 5);
The supporting leg of described front leg strut device (3) is triangular in shape, has the jack of turning back in vertical telescopic regulating mechanism and upright plane;
The jack of turning back in described vertical telescopic regulating mechanism and upright plane is: have fixedly steel pin (11) of the diagonal brace (10) of telescopic head tree (9), scalable adjusting and hydraulic pushing.
2. according to the straddle type Bridge Erector described in claim l, it is characterized in that described auxiliary support leg device (4) is provided with telescopic upright of frame (16) and hydraulic jacking device (17).
3. according to the straddle type Bridge Erector described in claim l, it is characterized in that described cart driving mechanism is electrodynamic type structure, described pinch roller driving mechanism is fluid pressure type structure.
4. a straddle type Bridge Erector according to claim 3, is characterized in that described pinch roller driving mechanism is oil hydraulic type constant force driving mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010298633.7A CN101949133B (en) | 2010-10-08 | 2010-10-08 | Straddle type bridge girder erection machine |
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| CN201010298633.7A CN101949133B (en) | 2010-10-08 | 2010-10-08 | Straddle type bridge girder erection machine |
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| CN101949133A CN101949133A (en) | 2011-01-19 |
| CN101949133B true CN101949133B (en) | 2014-03-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720133B (en) * | 2011-03-31 | 2014-03-05 | 江苏恩纳斯重工机械有限公司 | Ultralow segment lifting bridge girder erection machine with one anchored end |
| CN107604828B (en) * | 2017-09-15 | 2023-09-29 | 中国铁路总公司 | Bridge girder erection machine for double T-shaped girder bridge |
| CN109112974A (en) * | 2018-10-24 | 2019-01-01 | 中铁工程机械研究设计院有限公司 | Bridge Erector and its process of setting a roof beam in place |
| CN110593130B (en) * | 2019-10-15 | 2021-02-26 | 合肥正浩机械科技有限公司 | Bridge girder erection machine bearing platform and landing leg connection structure |
| CN110607763A (en) * | 2019-10-18 | 2019-12-24 | 合肥正浩机械科技有限公司 | Bridge girder erection machine supporting leg for longitudinal slope girder erection and supporting leg adjusting method thereof |
| CN114481835B (en) * | 2021-12-13 | 2023-04-07 | 中铁第五勘察设计院集团有限公司 | Stepless span changing device and method for suspension point of bridge girder erection machine |
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