The high-speed railway double guide beam bridge erecting machine
Technical field
The utility model relates to the high-speed railway bridge formation machine of the whole hole of a kind of two-wire prestressed concrete box girder.
Background technology
At present, a straddle type double guide beam bridge erecting machine that uses in the railway bridge erecting machine operation, but mainly by the lifting overhead traveling crane of the girder of trussed construction and configuration vertical shift above it and be fixed on supporting leg in the front leg strut that moves forward and backward under the nose girder, the O type and the rear support leg that can upwards turn down etc. is partly formed, and girder length can not be striden 2.5 times of pier less than two.One straddle type bridge formation machine operation program is: the bridge formation machine is finished the reliable anchoring on bridge pier of contraposition, front leg strut, Beam transportation vehicle fortune beam is to the machine tail end of building bridge, the front end of beam is sling in preceding hanging beam driving, propelling chassis acting in conjunction on preceding hanging beam driving and the Beam transportation vehicle makes beam move forward to the beam you to middle supporting leg rear, sling in the rear end of beam in back hanging beam driving, the front and back common hanging beam of two drivings advances and puts in place, and the beam that falls then puts in place.This bridge formation machine via hole operation is comparatively complicated, and during via hole, rear support leg Zhi Lihou must can shrink front leg strut with the grappling of bridge formation machine tail end, can remove the anchoring of tail end in moving to behind the front leg strut behind supporting leg the place ahead, and the bridge formation machine can via hole.And when setting up first bridge, bridge formation machine tail end grappling difficulty, a straddle type bridge formation machine has determined it to produce huge working load at span centre by its via hole mode, because big cantilever via hole, its longitudinal stability is relatively poor.
The utility model content
The purpose of this utility model provides a kind of high-speed railway double guide beam bridge erecting machine, this bridge formation machine can not need be taked particular facility can finish first to stride with last and stride setting up of bridge, and efficiently solve that bridge line head strides, the beam body is striden at the end, guarantee different spans beam body, set up, via hole process complete machine safe, stable.
For achieving the above object, technical solution of the present utility model is finished like this: a kind of high-speed railway double guide beam bridge erecting machine, comprise that girder and front end thereof connect one and have the semi girder of nose girder overhead traveling crane down on it, the rigidity rear support leg of band walking carriage is equipped with at the rear portion under girder, and the anterior front end of girder is equipped with folding flexible front leg strut and has auxilliary supporting leg, its girder is provided with the hanging beam driving, and afterbody is equipped with hoist engine on it, leads around two hanging beam drivings by pull rope; Comprise that also the auxiliary lower nose girder that has supporting leg divides the mobile of body structure, correspondence is placed in the lower end of semi girder in order to support auxilliary supporting leg.
The technical solution of the utility model also comprises:
Above-mentioned girder is the box-structure body, and its front end is provided with and becomes the cross-over connection head, top is equipped with respectively the back, in, preceding horizontal-associate laterally links into an integrated entity.
Above-mentioned rigidity rear support leg is that " " support body of type is provided with running truck and hydraulic jack in its bottom to O by being.
Above-mentioned flexible front leg strut is the fixed knot by a symmetry, and its upper end is provided with roller and jack, and the lower end connects folded segment, and connecting one by the hinged fixed bearing that is provided with on the folded segment can regulate, and jack is set forms with can regulating at its fixed knot.Utilizing this roller to install with girder cooperates.
Above-mentioned auxilliary supporting leg lower end is provided with support, and the oil cylinder that go up to be provided with, and is respectively equipped with auxilliary supporting leg chassis and the anti-wheel of scratching on support, with under the nose girder listrium cooperate installation.
The good effect that the utlity model has is: this bridge formation machine adopts flexible front leg strut and rigidity O type rear support leg two fulcrums to support girder, and forming the form of setting a roof beam in place is to stride simply-supported state, makes it stressed clear and definite; And the driving of two hanging beams on this girder cooperatively interacts, and takes the beam three-dimensional motion, satisfies synchronous, the laterally fine motion adjustment of beam body allocation and transportation, and lifting beam body adopts 4 liftings, 3 balances, and beam body stress is good; Because preceding hanging beam driving, following nose girder overhead traveling crane and auxilliary supporting leg cooperate, making bridge formation machine via hole state is to stride simply-supported state, and the complete machine longitudinal stability is bigger, and is safe; In addition, the hoist engine that is adopted is rear-mounted, and driving separates with hanging beam, effectively reduces the complete machine height, and is strong by high-altitude gauge ability; In addition, this bridge formation machine has adopted height to deposit nose girder, and bridge line first is striden, last two, one mutual conductance beam body sets up a difficult problem thereby solved more conveniently, has to set a roof beam in place, transport the separation of beam operation, job execution efficient height; And can be by adopting WLAN and ether industry network control system, to guarantee the synchronism in the beam body lifting operation process; This girder length foreshortens to 1.5 times of spans by original two 2.5 times of spans of striding pier, can satisfy to use and set up setting up of 20M, 24M, the whole hole prestressed concrete box girder railroad bridge of 32M two-wire.
Description of drawings
Fig. 1 is this novel structural representation.
Fig. 2 is the rear support leg and the girder driving configuration structure schematic diagram in Figure 1A-A cross section.
Fig. 3 is the flexible front leg strut and the girder mounting structure schematic diagram in Figure 1B-B cross section.
Fig. 4 is the auxilliary supporting leg and the preceding horizontal-associate mounting structure schematic diagram of girder in Fig. 1 C-C cross section.
Fig. 5 is the following nose girder overhead traveling crane and following nose girder structural representation in Fig. 1 D-D cross section.
Fig. 6 is the job state reference diagram of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, to this novel being further described.
By the high-speed railway double guide beam bridge erecting machine shown in Fig. 1,2,3, it has girder 2 that adopts box-beam structure and the horizontal-associate 14 that the rear portion sets firmly, the horizontal-associate 13 that the middle part sets firmly, and the preceding horizontal-associate 17 of front end, the fixedly connected semi girder 8 that supplies via hole to use on its preceding horizontal-associate 17 is provided with nose girder overhead traveling crane 10 down on its semi girder 8.This girder 2 is the load spandrel girder, and semi girder 8 is a plate-girder formula truss lightweight structures, guarantees during connection that semi girder 8 has certain tilting upward, and the following nose girder overhead traveling crane 10 that is provided with on it is operated steadily.The two hanging beams driving 1 and 3 of can vertical, horizontal moving is installed on girder 2, can realize traversing synchronously, in order to satisfy the needs that fine setting of beam body and curve are set a roof beam in place.Afterbody by girder 2 is provided with four hoist engines 12, leads system for winding by pull rope and connects two hanging beam drivings 1 and 3 respectively, and fixed pulley group on it and suspender movable pulley are two suspender bodies of symmetry.This hanging beam driving 1 is worn around the formation tackling system by fixed pulley group on it and suspender pulley mutually with 3, thereby has realized the effect of 3 liftings of 4 hanging beams.Rear portion under girder 2 is provided with rigidity " O " type rear support leg 4, its upper end and girder are affixed, the lower end is provided with running truck 5 and special-purpose jack 15 stressing devices are installed by this chassis 5 and the temporary track 16 on setting a roof beam in place, dedicated hydraulic jack 15 is stressed when setting a roof beam in place, take the girder reach when running truck 5 is used for via hole, realize the conversion of stressing device and running truck.Front portion under the girder 2 is provided with flexible front leg strut 6, this flexibility front leg strut 6 is rollers 18 that the energy displacement is housed in the top by a fixed knot 19, cooperate with the installation of girder 2 lower covers, be provided with folded segment 20 in the lower end of its fixed knot 19, be connected with folded segment 20 by hinged bearing 21, be provided with in the lower end of folded segment 20 and can regulate 23, be provided with jack 22 on 23 and form with can regulating at fixed knot 19.When setting up last hole beam, make and to regulate 23 and turn up to both sides along bearing 21 by pulling jack 22,6 of flexible front leg struts are stood on the abutment, realize that last hole roof beam structure establishes, be provided with in the lower end of folded segment 20 and can regulate 23, can regulate 23 and be used in and curvedly adjust because the deck-molding difference requires the highly different needs of front leg strut 6 when striding operation.Be provided with auxilliary supporting leg 7 in the front end of flexible front leg strut 6, auxilliary supporting leg 7 have and girder 2 for dividing the following nose girder 9 of body structure, this time nose girder 9 the bottom that the position is a respective cantilevered beam 8 is set, the lower end of this time nose girder 9 is provided with symmetrical supporting leg 11.
Fig. 4 has provided auxilliary supporting leg and the preceding horizontal-associate mounting structure of girder.By the front end of girder 2 affixed front end horizontal-associate 17 and the last semi girder 8 that connects thereof.Be installed in telescopic auxilliary supporting leg 7 and oil cylinder 24 under the front end horizontal-associate 17, be connected with support 25 24 times by auxilliary supporting leg 7 and oil cylinder respectively, be arranged with auxilliary supporting leg chassis 26 in the inboard of its support 25 and take turns 27, cooperate with following nose girder 9 frange plates installation by auxilliary supporting leg chassis 26 and the anti-stingy wheel 27 that is equipped with instead scratching.Be somebody's turn to do when anti-the effect of stingy wheel 27 is the via hole operation, can hook down nose girder overhead traveling crane operations under nose girder 9 cooperations.
Described auxilliary supporting leg 7 is by saving part and movable part admittedly, connecting to form by positioning bolt.When oil cylinder 24 elongates or shortens, auxilliary supporting leg 7 is changed by manual adjustment thereupon, cooperate in order to support with support 25.
Fig. 5 has provided semi girder, nose girder reaches nose girder overhead traveling crane mounting structure down down.Front end by girder 2 is provided with a semi girder 8, and following nose girder overhead traveling crane 10 is arranged on the semi girder 8, hooks down nose girder 9 and supporting leg 11 is walked by following nose girder overhead traveling crane 10 on semi girder 8.
Fig. 6 has provided Fig. 1 build bridge the setting a roof beam in place of machine, via hole job state reference, and the specific embodiment is as follows:
1, bridge formation frame beam operating mode
After a, bridge formation machine preparation finish,, and carry a beam and walk to the bridge formation drive end unit and stop braking by fortune Liangping east feeding beam; By the preceding hanging beam driving bundle hanging beam body front end on the girder.
B, the driving of preceding hanging beam drag beam to continue reach along flat car for transport of sills, make beam body rear end to the drive end unit of building bridge, hanging beam driving bundle hanging beam body rear end behind the girder, trave lling girder body before this forward and backward common cooperation of hanging beam driving.
C, the driving of forward and backward hanging beam are carried beam and are walked to bridge formation frame beam section, reduce beam height degree apart from pier face 200mm, and beam body position, beam body in place are adjusted in all around; This bridge formation machine is prepared via hole.
2, bridge formation hole via hole operating mode
D, bridge formation frame are established after this hole finishes, and regulating of front leg strut left the pier face, start the rear support leg chassis and auxilliary supporting leg chassis makes the reach of bridge formation machine.
E, bridge formation machine move forward to design attitude, utilize auxilliary supporting leg, adjust front leg strut, set level girder.
F, by the preceding hanging beam driving reach nose girder rear end of slinging down, auxilliary supporting leg instead scratch wheel sling down the nose girder front end and promote under nose girder move forward; To stopping apart from auxilliary supporting leg 1m place, following nose girder driving bundle is hung down nose girder by following nose girder driving, and nose girder moves forward under promoting simultaneously.
J, current hanging beam stop when walking to the front leg strut position, and hanging beam driving bundle is hung before removing, and continue to drag down nose girder by nose girder driving down and move forward to design attitude, set level, adjustment, firmly descend nose girder, and this bridge formation machine preparation is set a roof beam in place.
According to above-mentioned operating mode form, it is same as described above that its bridge formation machine is become the operating mode mode of striding.