CN207904782U - Large span crosses tunnel box beam bridge formation machine - Google Patents

Large span crosses tunnel box beam bridge formation machine Download PDF

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Publication number
CN207904782U
CN207904782U CN201820170710.2U CN201820170710U CN207904782U CN 207904782 U CN207904782 U CN 207904782U CN 201820170710 U CN201820170710 U CN 201820170710U CN 207904782 U CN207904782 U CN 207904782U
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China
Prior art keywords
horn
leg
large span
bridge formation
box beam
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CN201820170710.2U
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Chinese (zh)
Inventor
苏永华
张智莹
班新林
魏峰
李珍西
胡所亭
石龙
陈家乐
葛凯
尹卫
马林
王英琳
杨心怡
唐黎明
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China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
China State Railway Group Co Ltd
China Railway Engineering Machinery Research and Design Institute Co Ltd
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China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
China Railway Corp
China Railway Engineering Machinery Research and Design Institute Co Ltd
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Priority to CN201820170710.2U priority Critical patent/CN207904782U/en
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Abstract

The utility model provides a kind of large span and crosses tunnel box beam bridge formation machine, including is sequentially arranged at preceding auxiliary leg, front leg strut, middle supporting leg and rear support leg below horn from front to back, and the top of the horn, which is equipped with, can move horizontally preceding derrick car and rear derrick car;The preceding auxiliary leg and the front leg strut are movably attached to the front end of the horn respectively, and the rear support leg is connected to the rear end of the horn turnablely, and the rear support leg has the running mechanism that can drive the horn vertical shift via.The large span of the utility model crosses tunnel box beam bridge formation machine, disclosure satisfy that the erection of a variety of span box girders such as 40m, 32m, 24m or 20m, and can realize and pack that Bridge Erector crosses tunnel and tunnel face is set a roof beam in place operation.

Description

Large span crosses tunnel box beam bridge formation machine
Technical field
The utility model is related to railway construction machine equipment technical fields more particularly to a kind of large span to cross tunnel box beam bridge formation Machine.
Background technology
At home and abroad in high-speed railway, bridge proportion is larger, and overhead long bridge is more.China express railway is due to adopting With the strategy of " interface height ", high ferro circuit Bridge accounting is up to 90% or more.
Currently, the maximum span of domestic prefabricated case beam is 32m, when the span of simply supported girder bridge is more than 32m, original can only be used The simply supported girder bridge or continuous beam, continuous steel frame bridge that position pours, economic index declines and quality control difficulty is larger.If realizing The scale application of Simply supported PC beam of the span more than or equal to 40m, and beam making field concentration pre-casting, fortune along use The Construction Mode that the movement of beam vehicle, Bridge Erector are set up, will be enlarged by the scope of application of high-speed railway prestressed concrete simply supported beam bridge, carries The economy of high bridge.
In view of above-mentioned requirement, and at present both at home and abroad without the high ferro Bridge Erector for being greater than or equal to 40m spans, the utility model People's research and design goes out a kind of large span and crosses tunnel box beam bridge formation machine, to meet the needs of high ferro wide-span case erection.
Utility model content
The purpose of this utility model is to provide a kind of large span and crosses tunnel box beam bridge formation machine, disclosure satisfy that 40m, 32m, 24m or The erection of a variety of span box girders such as 20m, and can realize and pack that Bridge Erector crosses tunnel and tunnel face is set a roof beam in place operation.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model:
A kind of large span of the utility model offer crosses tunnel box beam bridge formation machine comprising is sequentially arranged at from front to back below horn Preceding auxiliary leg, front leg strut, middle supporting leg and rear support leg, the top of the horn, which is equipped with, can move horizontally preceding derrick car with after Derrick car;The preceding auxiliary leg and the front leg strut are movably attached to the front end of the horn, the rear support leg respectively It is connected to the rear end of the horn turnablely, the rear support leg has the running mechanism that can drive the horn vertical shift via.
In the embodiment of the utility model, the horn has two girders disposed in parallel, two girders Front end between be connected with front beam, back end beam, the middle part of two girders are connected between the rear end of two girders Interval is connected with multiple strengthening caps.
In the embodiment of the utility model, the preceding auxiliary leg has upper between being hinged on two girders Crossbeam, is connected with inner prop, intermediate column jacket and lower inner prop on the upper beam in turn from top to bottom, and the intermediate column jacket can be vertical It is movably attached on the upper inner prop and the lower inner prop, the both ends of the upper beam, which are respectively equipped with, can drive the preceding auxiliary The drive wheel group that supporting leg vertically moves on the horn.
In the embodiment of the utility model, the front leg strut is upper between two girder lower ends with being arranged Cylinder is connected with intermediate inner cylinder and lower prop in turn in the column body from top to bottom, and the intermediate inner prop physical efficiency is moved vertically It is connected to dynamicly in the column body, the both ends of the column body are respectively by asking Pulley mechanism to be movably mounted on two institutes State girder.
In the embodiment of the utility model, the middle supporting leg has is connected to two girders in which can horizontally rotate Two connection beams in outside, be respectively connected on each connection beam can rotationally column vertically, the lower ends of two columns it Between be detachably connected with bottom end rail.
In the embodiment of the utility model, the rear support leg includes that can turningly be connected to the girder lower end vertically Outer cylindrical body, the lower end of the outer cylindrical body is connected with inner cylinder with being vertically movable, and the lower end of the inner cylinder is connected with described Running mechanism.
In the embodiment of the utility model, the preceding derrick car and it is described after derrick car all have hoist engine assembly, Vertical shift cart, cross traveling trolley and suspender, the vertical shift cart are arranged on the horn in which can vertically move, the cross traveling trolley It can be arranged on the vertical shift cart to transverse shifting, the suspender is connected to the lower section of the cross traveling trolley, the hoist engine Assembly is connected by lifting rope with the suspender.
In the embodiment of the utility model, the suspender of the preceding derrick car is two point suspender, the rear lifting The suspender of vehicle is single point suspension spreader.
In the embodiment of the utility model, the rear end of the horn is also associated with rear auxiliary leg, is assisted after described Supporting leg can be turningly connected on the horn vertically.
The large span of the utility model, which spends the characteristics of tunnel box beam bridge formation machine and advantage, is:The large span crosses tunnel box beam bridge formation machine Front leg strut and middle supporting leg be main stress supporting leg provide support when setting a roof beam in place operation for Bridge Erector.It is rear to prop up in via operation Leg provides driving force for Bridge Erector, and preceding auxiliary leg provides Auxiliary support.The front leg strut and preceding auxiliary leg can be along the length of horn Spend direction movement, become across when, only front leg strut and preceding auxiliary leg need to be adjusted to corresponding span a variety of span (examples can be realized Such as 40m, 32m, 24m or 20m span) erection of box beam, it is simple to operate.The large span of the utility model crosses tunnel box beam frame Bridge machine is by the design of preceding auxiliary leg, the box beam erection operation especially suitable for 40m large spans.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is that the large span of the utility model crosses the structural schematic diagram of tunnel box beam bridge formation machine.
Fig. 2 is the overlooking structure diagram of the horn of the utility model.
Fig. 3 is the main structure diagram of the preceding auxiliary leg of the utility model.
Fig. 4 is the main structure diagram of the front leg strut of the utility model.
Fig. 5 is the main structure diagram of the middle supporting leg of the utility model.
Fig. 6 is the side structure schematic view of the middle supporting leg of the utility model.
Fig. 7 is the main structure diagram of the rear support leg of the utility model.
Fig. 8 is the side structure schematic view of the rear support leg of the utility model.
Fig. 9 is the side structure schematic view that the rear support leg of the utility model is overturn.
Figure 10 is the front view of the rear derrick car of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of large span of the utility model offer crosses tunnel box beam bridge formation machine comprising set successively from front to back Preceding auxiliary leg 2, front leg strut 3, middle supporting leg 4 below horn 1 and rear support leg 5, the top of the horn 1, which is equipped with, horizontal to be moved Derrick car 6 and rear derrick car 7 before dynamic ground;The preceding auxiliary leg 2 and the front leg strut 3 are movably attached to the machine respectively The front end of arm 1, the rear support leg 5 are connected to the rear end of the horn 1 turnablely, described in the rear support leg 5 has and can drive The running mechanism 53 of 1 vertical shift via of horn.
It is the device for box girder erection that the large span, which crosses tunnel box beam bridge formation machine, and front leg strut 3 and middle supporting leg 4 are main stress Supporting leg provides support when setting a roof beam in place operation for Bridge Erector.In via operation, rear support leg 5 provides driving force for Bridge Erector, preceding Auxiliary leg 2 provides Auxiliary support.The front leg strut 3 and preceding auxiliary leg 2 can be moved along the length direction of horn 1, become across when, Front leg strut 3 and preceding auxiliary leg 2 need to be only adjusted to corresponding span, a variety of spans (such as 40m, 32m, 24m or 20m can be realized Span) box beam erection, it is simple to operate.The large span of the utility model crosses tunnel box beam bridge formation machine and passes through preceding auxiliary leg 2 design, the box beam erection operation especially suitable for 40m large spans.
Specifically, as shown in Fig. 2, horn 1 has two girders 11 disposed in parallel, connect between the front end of two girders 11 It is connected to front beam 12, is connected with back end beam 13 between the rear end of two girders 11, the middle part intervals of two girders 11 is connected with more A strengthening cap 14.In the present embodiment, the both ends of front beam 12 are connect by flanged plate with one end of two girders 11, back end beam 13 both ends are connect by flanged plate with the other end of two girders 11, the front beam 12, back end beam 13 and two 11 shapes of girder At closed framework structure;Strengthening cap 14 is substantially domed, is located at the top of two girders 11, in the present invention, machine There are two strengthening caps 14 for the tool of arm 1, and certainly, in other examples, according to the length of two girders 11, which also may be used For one, three or more, be not limited herein, the both ends of the strengthening cap 14 are connect by flanged plate with two girders 11, The strengthening cap 14 causes the vertical shift on horn 1 of preceding derrick car 6 and rear derrick car 7 for preventing two 11 side sways of girder excessive When the problems such as gnawing rail or clamping stagnation generation.
As shown in figure 3, preceding auxiliary leg 2, which has, is hinged on upper beam 21 between two girders 11, on the upper beam 21 Being connected with inner prop 22, intermediate column jacket 23 and lower inner prop 24, the intermediate column jacket 23 in turn from top to bottom can vertically movably connect On upper inner prop 22 and lower inner prop 24, it is longitudinal on horn 1 that the both ends of the upper beam 21 are respectively equipped with auxiliary leg 2 before capable of driving Mobile drive wheel group 25.The preceding auxiliary leg 2 can not only realize that the large span of the utility model crosses the change of tunnel box beam bridge formation machine Across, moreover it is possible to avoid the interference of the preceding derrick car 6 with vertical shift in place.
The drive wheel group 25 is the mechanical structure for connecting speed reducer using motor and driving wheel out of shape, is the prior art, No longer its structure is specifically described herein.It is connected separately with one group of drive wheel group 25, each drive wheel group at the both ends of upper beam 21 25 can move on the track on 11 upper surface of corresponding girder, drive preceding auxiliary leg 2 to be indulged on horn 1 to realize To mobile purpose.In the present invention, upper inner prop 22 is two, and two upper inner props 22 are arranged side by side, on each upper inner prop 22 Multiple adjusting holes 221 are equipped at intervals with, upper inner prop 22 is connected in its adjusting hole 221 by axis pin by is connected to upper beam 21, It is connected with horizontal-associate 26 between the upper end of two upper inner props 22, horizontal-associate 26 is located at the top of upper beam 21;Under two upper inner props 22 End is inserted into intermediate column jacket 23 and is inserted into different adjusting hole 221 by axis pin by is fixedly connected on intermediate column jacket 23 respectively, The link position that can reach adjustment intermediate column jacket 23 and upper inner prop 22 in different adjusting holes 221 is connected to by axis pin, in turn Achieve the purpose that the vertical height of auxiliary leg 2 before adjusting;Further, lower inner prop 24 is two, and two lower inner props 24 are side by side It is arranged, is equipped at intervals with multiple adjusting holes 241 on each lower inner prop 24, the upper end of lower inner prop 24 is connected to its adjusting hole by axis pin It is connected to intermediate column jacket 23 in 241, lower tie-beam 27 is connected between the lower end of two lower inner props 24, is connected to by axis pin It can reach the link position of adjustment intermediate column jacket 23 and lower inner prop 24 in different adjusting holes 241, and then reach auxiliary before adjustment The purpose of the vertical height of supporting leg 2.In the present embodiment, it is respectively connected with lifting cylinder 28 on each lower inner prop 24, by lifting oil Cylinder 28 drives 24 vertical shift of lower inner prop, preceding auxiliary to adjust with the pin hole position of column jacket 23 and lower inner prop 24 among stretching The vertical height for helping supporting leg 2, to achieve the purpose that adjust 1 levelness of horn.
As shown in figure 4, front leg strut 3 has the column body 31 that is arranged between two 11 lower ends of girder, in the column body 31 It is connected with intermediate inner cylinder 32 and lower prop 33 in turn from top to bottom, which can vertically movably be connected to upper prop On body 31, the both ends of the column body 31 are respectively by asking Pulley mechanism 34 to be movably mounted on two girders 11.
The column body 31 is across the lower section of two girders 11, the both ends of column body 31 be respectively articulated with there are one hold in the palm change gear Mechanism 34, each that Pulley mechanism 34 is ask to all have change gear structure 341 and riding wheel structure 342, wherein change gear structure 341 is used for front leg strut 3 hangings realize longitudinal movement of the front leg strut 3 on girder 11 on girder 11, and riding wheel structure 342 is used to carry out girder 11 Support, when front leg strut 3 is fixed, by rolling of the wheel group of wheel holding mechanism 341 on girder 11 to realize the vertical of horn 1 To displacement, the change gear structure 341 and riding wheel structure 342 are the prior art, are no longer specifically described herein to its structure, work as bridge formation When machine vertical shift via operation, support Pulley mechanism 34 front leg strut 3 can be driven to be vertically moved on horn 1, with this come realize 40m, The erection of 32m, 24m or 20m span box girder.In the present invention, intermediate inner cylinder 32 is two, two intermediate inner cylinders 32 It is arranged side by side, multiple adjusting holes 321 is equipped at intervals on each intermediate inner cylinder 32, each intermediate inner cylinder 32 is connected to by axis pin It is connected to column body 31 in its adjusting hole 321;Further, the lower part of column body 31 is connected with lift cylinder 35, by carrying Oil-lifting jar 35 can realize the link position of adjustment column body 31 and intermediate inner cylinder 32, and then reach the vertical of adjustment front leg strut 3 The purpose of height.In the present invention, lower prop 33 is two, and two lower props 33 are arranged side by side, two lower props 33 Lower tie-beam 34 is connected between lower end, the upper end of two lower props 33 passes through inner cylinder 32 among flanged plate and two respectively Lower end is connected.In the present embodiment, it is also associated with fold oil cylinder 36 on lower prop 33, lower prop can be realized by turning down oil cylinder 36 The vertical fold of 33 centre inner cylinders 32 relatively acts.
As shown in figure 5, middle supporting leg 4 has be connected to two 11 outsides of girder two connection beams 41 with capable of horizontally rotating, Be respectively connected on each connection beam 41 can rotationally column 42 vertically, be detachably connected with lower cross between the lower end of two root posts 42 Beam 43.
Shown in Fig. 6, one end of each connection beam 41 is connected to girder 11 with can horizontally rotating by flanged plate Outside, the connection beam 41 can opposite girder 11 carry out flip horizontal;Column 42 is in substantially tulwar shape, and the upper end passes through flanged plate It can rotationally be connected to the other end of connection beam 41 vertically;Across in the lower section of two girders 11, both ends pass through bottom end rail 43 Flanged plate is connected between the lower end of two root posts 42.
When Bridge Erector crosses tunnel, bottom end rail 43 is first removed, is then in that 90 ° of angle levels turn down connection beams 41 and column 42, Last vertical fold column 42, makes column 42 with connection beam 41 in θ=70 ° horn shape state, certainly, in other examples, stands Column 42 folded over can arrive extreme position, even if also not interfered between connection beam 41 and column 42, herein not to flip angle Degree is limited.By simply turning down, Bridge Erector can be made to pass through tunnel and realize that tunnel face is set a roof beam in place, work flow It is succinct efficient.
As shown in Figure 7 and Figure 8, rear support leg 5 includes the outer cylindrical body 51 that can be turningly connected to 11 lower end of girder vertically, this is outer The lower end of cylinder 51 is connected with inner cylinder 52 with being vertically movable, and the lower end of the inner cylinder 52 is connected with running mechanism 53.
There are rear support leg 5 two outer cylindrical bodies 51, each outer cylindrical body 51 can rotationally be connected to each girder by folding ram 54 11 lower end, the upper end of outer cylindrical body 51 are hinged on the lower end of girder 11, the outer cylindrical body 51 can be made to cut with scissors by the folding ram 54 Contact is that axis is overturn with respect to girder 11;In the present invention, interior main body 52 is connected to the lower end of outer cylindrical body 51 by axis pin, should There are spaced multiple adjusting holes 521 on inner cylinder 52, be connected to by axis pin in different adjusting holes 521 and can reach tune The link position of whole inner cylinder 52 and outer cylindrical body 51, and then achieve the purpose that the vertical height for adjusting rear support leg 5.In the present embodiment In, it is respectively connected with telescopic oil cylinder 55 in each outer cylindrical body 51,51 vertical shift of outer cylindrical body is driven by telescopic oil cylinder 55, is become with flexible The pin hole position for changing inner cylinder 52 and outer cylindrical body 51, to adjust the vertical height of rear support leg 5.Mechanism 53 out of shape is hinged on inner cylinder 53 lower end can make rear support leg 5 rotate 89 °, please refer to Figure 10 when beam car feeding beam operation by folding ram 54 Shown, to concede feeding beam channel, beam car transports box beam to the lower section of Bridge Erector.When Bridge Erector vertical shift operation, running mechanism 53 can drive Bridge Erector vertical shift.
Preceding derrick car 6 and rear derrick car 7 are the mechanism for lifting by crane box beam, can be vertically moved on horn 1, preceding Loaded vehicle 6 is located at the front end of horn 1, and rear derrick car 7 is located at the rear end of horn, and the two structure is essentially identical, herein only lifting later It is specifically described for vehicle 7.
As shown in Figure 10, rear derrick car 7 has hoist engine assembly 71, vertical shift cart 72, cross traveling trolley 73 and suspender 74, should Vertical shift cart 72 can vertically move ground and be arranged on horn 1, which can be arranged in vertical shift cart 72 to transverse shifting On, which is connected to the lower section of cross traveling trolley 73, which is connected by lifting rope 711 with suspender 74.
For derrick car 7 after driving, longitudinal traveling, cross traveling trolley 73 on horn 1 can drive suspender 74 to vertical shift cart 72 The transverse shifting on vertical shift cart 72, so as to adjust the position of suspender 74, hoist engine assembly 71 provides dynamic for the lifting of suspender 74 Power is also associated with leading block 75 in the present embodiment between hoist engine assembly 71 and suspender 74, be connected to hoist engine assembly 71 Lifting rope 711 between suspender 74 can be wrapped on leading block 75, to provide safeguard for smooth hoisting sling 74.
The suspender of the preceding derrick car 6 is two point suspender, and the suspender 74 of the rear derrick car 7 is single point suspension spreader, that is, such as Figure 10 Shown, there are one axis pins 741 for the tool of suspender 74 of rear derrick car 7, single axis pin articulated form are used, so that its sunpender 742 It can swing;And there are two axis pins for the suspender tool of preceding derrick car 6, use the affixed form of double pin axle namely the two point suspender, The sunpender of the suspender of the preceding derrick car 6 cannot be swung.The utility model collectively constitutes four by preceding derrick car 6 and rear derrick car 7 Point 3 balance mechanisms of raising, 4 raisings, 3 balance mechanisms are the common mechanism of lifting equipment.Since box beam itself is tied Structure cannot bear to distort, and box beam is usually provided with suspension centre everywhere, lift by crane box beam by lifting mechanism, that is, so-called four light It hangs;In addition, due to the slightly difference of lifting mechanism (being usually hoist engine assembly 71) lifting velocity, box beam raising process can be caused In everywhere suspension centre high and low position difference box beam is damaged when serious to generate torque.The principle for determining a plane according to 3 points, The suspension centre of above or below two is become into single-point by compensating pulley or linkwork, it is ensured that each suspension centre stress is almost the same, A whole set of tackling system becomes 3 balance mechanisms, and box beam is not distorted when lifting by crane.
Further, in the present invention, the rear end of the horn 1 is also associated with rear auxiliary leg 8, the rear auxiliary leg 8 can turningly be connected on horn 1 vertically.The rear auxiliary leg 8 set a roof beam in place, via operation when be not involved in use, the rear auxiliary What supporting leg 8 was mainly used for Bridge Erector packs transition operation, and when setting a roof beam in place, rear auxiliary leg 8 overturns 80 °, concedes feeding beam channel.
In the present invention, the large span cross tunnel box beam bridge formation machine be additionally provided with drivers' cab, electrical system, hydraulic system and Dynamical system, each component for crossing tunnel box beam bridge formation machine to large span respectively carry out automatically controlling, and are the prior art, herein No longer its structure and operation principle are specifically described.
The large span of the utility model crosses tunnel box beam bridge formation machine, as shown in Figure 1, the operation of via walks when setting up 40m box beams It is rapid as follows:
(1) first, rear auxiliary leg 8 is in fold state, turns over, is supported on rail 9 under rear support leg 5.6 He of preceding derrick car Derrick car 7 runs to bridge formation drive end unit afterwards, and front leg strut 3 and box girder erection anchor, and preceding auxiliary leg 2 retreats 4.8m, middle supporting leg 4 It is liftoff, prepare complete machine vertical shift.
(2) after, the support Pulley mechanism 34 of 5 traveling of rear support leg and front leg strut 3 drives complete machine traveling 40.7m, preceding auxiliary branch On 2 erect-position pier 10 of leg and support reliable.
(3) then, preceding auxiliary leg 2, middle supporting leg 4 and rear support leg 5 support, and 3 vertical shift 40.7m erect-positions of front leg strut are in the pier On 10, support is reliable.
(4) finally, preceding derrick car 6 and rear derrick car 7, which are run to, takes beam position, and rear support leg 5 flips up, preceding auxiliary leg 2 walk forward 4.8m, reach the state of setting a roof beam in place, and complete via namely state shown in FIG. 1.
It can be seen that the bridge formation function meets the whole hole prestressing force box concrete of the non-standard two-wire between all 20~40m The erection of beam considerably reduces the input of equipment funds, reduces construction cost.The large span of the utility model crosses tunnel box beam Bridge Erector, preceding derrick car 6 and rear derrick car 7 are march-past structure design, and middle supporting leg 4, rear support leg 5 and rear auxiliary leg 8 are adopted With can folding structure design, front leg strut 3 and preceding auxiliary leg 2 are designed using multiple stage circulation stretching structure, in tunnel when transport The bottom end rail 43 of middle supporting leg 4 need to only be removed, dismantling amount is small.Beam form is taken using back boom, solves beam car feeding beam When and rear support leg 5 interfere problem, can meet into tunnel face -20m and set a roof beam in place, go out tunnel face+7m and set a roof beam in place operating mode.
The above descriptions are merely exemplary embodiments of the present utility model, is not limited to the model of the utility model It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the design and principle of the utility model Change and change, the range of the utility model protection should all be belonged to.

Claims (9)

1. a kind of large span crosses tunnel box beam bridge formation machine, which is characterized in that including auxiliary before being sequentially arranged at below horn from front to back Supporting leg, front leg strut, middle supporting leg and rear support leg are helped, the top of the horn, which is equipped with, can move horizontally preceding derrick car and rear lifting Vehicle;The preceding auxiliary leg and the front leg strut are movably attached to the front end of the horn respectively, and the rear support leg can turn over It is connected to the rear end of the horn with turning, the rear support leg has the running mechanism that can drive the horn vertical shift via.
2. large span as described in claim 1 crosses tunnel box beam bridge formation machine, which is characterized in that the horn has disposed in parallel Two girders are connected with front beam between the front end of two girders, rear end are connected between the rear end of two girders The middle part interval of beam, two girders is connected with multiple strengthening caps.
3. large span as claimed in claim 2 crosses tunnel box beam bridge formation machine, which is characterized in that the preceding auxiliary leg has hinged Upper beam between two girders, be connected in turn from top to bottom on the upper beam inner prop, intermediate column jacket and under Inner prop, the intermediate column jacket can be vertically movably connected on the upper inner prop and the lower inner prop, the both ends of the upper beam It is respectively equipped with the drive wheel group that the preceding auxiliary leg can be driven to be vertically moved on the horn.
4. large span as claimed in claim 2 crosses tunnel box beam bridge formation machine, which is characterized in that the front leg strut, which has, to be arranged two Column body between girder lower end described in root is connected with intermediate inner cylinder and lower prop in turn in the column body from top to bottom, The intermediate inner prop physical efficiency is vertically movably connected in the column body, and the both ends of the column body are respectively by holding in the palm change gear machine Structure is movably mounted on two girders.
5. large span as claimed in claim 2 crosses tunnel box beam bridge formation machine, which is characterized in that the middle supporting leg, which has, horizontal to be turned Two connection beams being connected to dynamicly on the outside of two girders are respectively connected with and can rotationally be stood vertically on each connection beam Column is detachably connected with bottom end rail between the lower end of two columns.
6. large span as claimed in claim 2 crosses tunnel box beam bridge formation machine, which is characterized in that the rear support leg includes turning over vertically It is connected to the outer cylindrical body of the girder lower end with turning, the lower end of the outer cylindrical body is connected with inner cylinder with being vertically movable, described The lower end of inner cylinder is connected with the running mechanism.
7. large span as described in claim 1 crosses tunnel box beam bridge formation machine, which is characterized in that the preceding derrick car and it is described after rise Loaded vehicle all has hoist engine assembly, vertical shift cart, cross traveling trolley and suspender, and the vertical shift cart is arranged in institute in which can vertically move It states on horn, is arranged on the vertical shift cart to the cross traveling trolley energy transverse shifting, the suspender is connected to described traversing The lower section of trolley, the hoist engine assembly are connected by lifting rope with the suspender.
8. large span as claimed in claim 7 crosses tunnel box beam bridge formation machine, which is characterized in that the suspender of the preceding derrick car The suspender for two point suspender, the rear derrick car is single point suspension spreader.
9. large span as described in claim 1 crosses tunnel box beam bridge formation machine, which is characterized in that the rear end of the horn is also associated with Auxiliary leg afterwards, the rear auxiliary leg can be turningly connected on the horn vertically.
CN201820170710.2U 2018-01-31 2018-01-31 Large span crosses tunnel box beam bridge formation machine Active CN207904782U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109577204A (en) * 2018-12-05 2019-04-05 河南省铁山起重设备有限公司 A kind of Bridge Erector of the walking without counterweight via hole
CN109653104A (en) * 2018-12-26 2019-04-19 中国水利水电第四工程局有限公司 A kind of across the erection construction method of double line box girder change
CN109837837A (en) * 2019-03-06 2019-06-04 上海市基础工程集团有限公司 Mounting device and method for concrete-steel Beam prefabricated bridge
CN112227221A (en) * 2020-11-06 2021-01-15 浙江中建路桥设备有限公司 Rear support leg device of bridge girder erection machine
CN112227221B (en) * 2020-11-06 2024-05-10 浙江中建路桥设备有限公司 Rear supporting leg device of bridge girder erection machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109577204A (en) * 2018-12-05 2019-04-05 河南省铁山起重设备有限公司 A kind of Bridge Erector of the walking without counterweight via hole
CN109653104A (en) * 2018-12-26 2019-04-19 中国水利水电第四工程局有限公司 A kind of across the erection construction method of double line box girder change
CN109837837A (en) * 2019-03-06 2019-06-04 上海市基础工程集团有限公司 Mounting device and method for concrete-steel Beam prefabricated bridge
CN112227221A (en) * 2020-11-06 2021-01-15 浙江中建路桥设备有限公司 Rear support leg device of bridge girder erection machine
CN112227221B (en) * 2020-11-06 2024-05-10 浙江中建路桥设备有限公司 Rear supporting leg device of bridge girder erection machine

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