A kind of large-tonnage Bridge Erector for the construction of sharp radius curve railway whole opening box girder
Technical field
It is especially a kind of for the big of sharp radius curve railway whole opening box girder construction the utility model relates to a kind of Bridge Erector
Tonnage Bridge Erector.
Background technique
Line for Passenger Transportation and high speed railway construction initial stage in China, the location of big multi-line are that economy is more flourishing coastal
Plains region, geographical conditions are preferable, are substantially all to bridge sweep in 5000m or more, and country's 900t box beam bridge formation
Machine is usually designed manufacture according to the adaptability of maximum conditions 2000m sweep.But with city track traffic engineering
Iterative method, inter-city passenger rail construction is maked rapid progress, due to being limited by objective condition, such as landform, urban road and building
Limitation reduces investment and reduces limitation of removing, while the modern design of beam type designed by city track traffic engineering, pier type,
Beauty, beam type is light, and the construction load that can be born is small, and plane curve is also smaller and smaller, and construction difficulty is increasing, therefore right
More stringent requirements are proposed for the technical performance of setting up girder.
So far, domestic 900t grades of railway whole opening box girder there is no the successful elder generation of the erection construction on 500m sharp radius curve
Example, railway whole opening box girder on 500m sharp radius curve is not satisfied in the technical performance of existing 900t grade transportation rack device both at home and abroad
It sets up and requires.Therefore, it is necessary to undergo technological transformation to meet the erection of railway whole opening box girder on sharp radius curve to transportation rack device,
Wherein, following technical problem is solved:
(1) it is asynchronous on the different tracks there are angle that rear support leg and auxiliary leg when Bridge Erector contraposition traveling are solved
Operation problem avoids or reduces to gnaw rail, derailment occurring;
(2) after solving guide girder machine via hole, front end, which can not be successfully, places problem in place;
(3) solution beam car feeding beam is carried asynchronous operation of the beam trolley on the different tracks there are angle on the back and is asked when around
Topic, avoids or reduces occur gnawing rail, derailment occurring;
(4) solve the problems, such as that carrying beam trolley on the back generates relatively larger transverse power by beam car and guide girder machine track linkage section.
Utility model content
The goal of the invention of the utility model is: for traditional railway whole opening box girder erection construction of the existing technology
Bridge Erector, in sharp radius curve construction, Bridge Erector be can not achieve across contraposition, exist simultaneously beam car docking feeding beam and case
The problem of constructional difficulties such as beam contraposition, provides a kind of large-tonnage Bridge Erector for the construction of sharp radius curve railway whole opening box girder.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
A kind of large-tonnage Bridge Erector for the construction of sharp radius curve railway whole opening box girder, including lifting beam machine arranged side by side
Girder and it is set to guide girder machine below, the lifting beam machine rear support leg of the lifting beam machine main beam rear end is set and is arranged described
The lifting beam machine front leg strut of bale handle main beam middle front part, the preceding beam-hanging traveling crane and rear hanging beam being fixedly mounted on the bale handle main beam
Overhead traveling crane is mounted on nose girder loop wheel machine and nose girder overhead traveling crane on the bale handle main beam by walking mechanism, the bale handle main beam it
Between fixed by girder linking beam, the lower part of the girder linking beam is provided with the auxiliary branch for being used to support the girder linking beam
Leg, the guide girder machine include roof beam structure body and the supporting leg for being separately positioned on roof beam structure body rear and front end, and by the nose girder loop wheel machine and
The lower section of the bale handle main beam is arranged in auxiliary leg, and it is horizontal that the lower part of the auxiliary leg is provided with rotatable auxiliary leg
Beam, the lower part of the nose girder loop wheel machine are provided with the nose girder loop wheel machine suspender belt for assisting the guide girder machine via hole;The lifting beam machine rear support leg
Lower part be provided with facilitate its rotate lifting beam machine rear support leg traveling flat turn mechanism.
Nose girder loop wheel machine suspender belt is made of upper and lower shoulder pole girder and spiral sunpender, effect be by auxiliary leg crossbeam and with
Upper bit is installed to another erect-position from an erect-position, and the lower traveling of auxiliary leg and hook can voluntarily in place, auxiliary nose-girder machine
Via hole.When present apparatus sharp radius curve is constructed, erecting machine via hole guarantees after erecting machine that traveling and auxiliary leg traveling are pressed from both sides existing
Smooth via hole in the case where angle, each travelling wheel do not gnaw rail phenomenon, to avoid generating cross force.
As a preferred embodiment of the present invention, it is additionally provided with hanging crossbeam between the bale handle main beam, hangs crossbeam
Positioned at the front end of the bale handle main beam, the lower part of the hanging crossbeam, which is provided with, assists the hanging of the guide girder machine via hole to fill
It sets.
When the contraposition of frame via hole, since the launching nose length of guide girder machine is too long, when nose girder overhead traveling crane runs to bale handle main beam
When front end, operation in place, needs erecting by overhang temporarily to sling nose girder, hangs again so that nose girder overhead traveling crane be made to retract nose girder not yet
Nose girder is played, when erecting by overhang is guide girder machine via hole, when nose girder overhead traveling crane retracts the interim suspension centre, i.e. guide girder machine via hole for mentioning nose girder again
Temporarily hang the girder of guide girder machine.
As a preferred embodiment of the present invention, the girder linking beam and the hanging crossbeam are box-structure, and
The front view structure of the two is up big and down small wedge shape, and the two passes through mutually matched flange with the bale handle main beam and connects
It connects, it is easy to disassemble.
As a preferred embodiment of the present invention, the lower part of the auxiliary leg crossbeam is provided with auxiliary leg travelling wheel
Case, the auxiliary leg crossbeam are made of two parts of upper lower leaf, be respectively positioned at upper layer upper auxiliary leg crossbeam and
Positioned at the lower auxiliary leg crossbeam of lower layer, the top of the upper auxiliary leg crossbeam is fixedly connected with the auxiliary leg, described
Lower auxiliary leg crossbeam is fixedly connected with the auxiliary leg traveling roller box, is provided in the middle part of the auxiliary leg crossbeam vertical
Rotary shaft, the upper auxiliary leg crossbeam and lower auxiliary leg crossbeam can be rotated around the rotary shaft.
Since lower leaf and middle part are provided with rotary shaft on auxiliary leg crossbeam, the upper and lower level of auxiliary leg crossbeam can be around rotation
Shaft rotation, enables auxiliary leg along the normal traveling of guide girder machine.
As a preferred embodiment of the present invention, the lifting beam machine rear support leg traveling flat turn mechanism includes rear support leg travelling wheel
Component and the rear support leg crossbeam being disposed above, the rear support leg traveling wheel assembly include rear support leg roller box and are arranged in the inner
The rear support leg travelling wheel in portion is provided with rotatable vertical pivot between the rear support leg roller box and rear support leg crossbeam.
As a preferred embodiment of the present invention, returning between the rear support leg traveling wheel assembly and the rear support leg crossbeam
Turning to be provided on face makes the two rotate more flexible wearing plate.
The lower part of lifting beam machine rear support leg is provided with the lifting beam machine rear support leg traveling flat turn mechanism for facilitating it to rotate, when track is logical
It crosses after dialling rail realization certain deviation amount, rear support leg roller box can finally make lifting beam machine simultaneously around vertical pivot flat turn along when track traveling
Rear support leg is in place to correct position along track, and being provided on the surface of revolution makes the two rotate more flexible wearing plate, so as to
Realize sharp radius curve construction.
As a preferred embodiment of the present invention, transition rail bridge is provided between the guide girder machine and beam car.Minor radius
When curve is constructed, beam car feeding beam carries beam trolley advanced in unison on the different tracks there are angle on the back when around, due to transition rail
The effect of bridge, can be realized and do not gnaw rail.
As a preferred embodiment of the present invention, the nose girder loop wheel machine suspender belt includes that upper and lower shoulder pole girder and spiral are hung
Bar.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
(1) when sharp radius curve is constructed, erecting machine via hole guarantees after erecting machine that traveling and auxiliary leg traveling are pressed from both sides existing
Smooth via hole in the case where angle, each travelling wheel do not gnaw rail phenomenon, to avoid generating cross force.
(2) when sharp radius curve is constructed, beam car feeding beam carries beam trolley on the back when around same on the different tracks there are angle
Step is advanced, and due to the effect of transition rail bridge, be can be realized and is not gnawed rail.
(3) lower part of lifting beam machine rear support leg is provided with the lifting beam machine rear support leg traveling flat turn mechanism for facilitating it to rotate, and works as rail
After road is by dialling rail realization certain deviation amount, rear support leg roller box can finally make to mention along when track traveling simultaneously around vertical pivot flat turn
Beam machine rear support leg is in place to correct position along track, and being provided on the surface of revolution makes the two rotate more flexible wearing plate, thus
Sharp radius curve construction may be implemented.
(4) due on auxiliary leg crossbeam lower leaf and middle part be provided with rotary shaft, the upper and lower level of auxiliary leg crossbeam can
It is rotated around rotary shaft, enables auxiliary leg along the normal traveling of guide girder machine.
Detailed description of the invention
Fig. 1 is the knot of the large-tonnage Bridge Erector described in the utility model for the construction of sharp radius curve railway whole opening box girder
Structure schematic diagram.
Fig. 2 is the cross-sectional view of A-A in Fig. 1.
Fig. 3 is the cross-sectional view of B-B in Fig. 1.
Fig. 4 is the cross-sectional view of C-C in Fig. 1.
Fig. 5 is the cross-sectional view of D-D in Fig. 1.
Fig. 6 is the structural schematic diagram of Fig. 1 middle girder linking beam.
Fig. 7 is the structural schematic diagram that crossbeam is hung in Fig. 1.
Fig. 8 is the structural schematic diagram of erecting by overhang in Fig. 1.
Fig. 9 is the partial enlarged view in Fig. 1 at E.
Marked in the figure: 1- bale handle main beam, 2- guide girder machine, 3- lifting beam machine rear support leg, 4- lifting beam machine front leg strut, hanging beam before 5-
Overhead traveling crane, beam-hanging traveling crane after 6-, 7- nose girder loop wheel machine, 71- nose girder loop wheel machine suspender belt, 8- nose girder overhead traveling crane, 9- girder linking beam, 10- auxiliary
Supporting leg, 11- auxiliary leg crossbeam, the upper auxiliary leg crossbeam of 112-, auxiliary leg crossbeam under 113-, 114- auxiliary leg travelling wheel
Case, 12- hang crossbeam, 13- erecting by overhang, 14- transition rail bridge, 15- rotary shaft, and 16- rear support leg traveling wheel assembly props up after 161-
Leg roller box, 162- rear support leg travelling wheel, 17- rear support leg crossbeam, 18- vertical pivot, 19- wearing plate.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
By taking a certain bridge undertaken the construction of before as an example, which uses 652 hole prefabricated case beams, wherein 605 hole of 32m box beam, 24m case
47 hole of beam.32m double line box girder is using single chamber section, the wide 11.4m in box beam beam face, bottom width 5.8m, box beam deck-molding 2.354m, self weight
For 678t.And the railway whole opening box girder of bridge 2# pier -5# pier totally 3 hole girder span 32m, design curve radius are left line 500m, right line
495.6m, route longitudinal slope 17 ‰.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 8, Bridge Erector includes two girders 1 of lifting beam machine arranged side by side and is arranged at it
The guide girder machine 2 of lower section is arranged in the lifting beam machine rear support leg 3 of 1 rear end of bale handle main beam and 1 middle front part of bale handle main beam is arranged in
Lifting beam machine front leg strut 4, the preceding beam-hanging traveling crane 5 and rear beam-hanging traveling crane 6 being fixedly mounted on bale handle main beam 1, passes through walking mechanism
The nose girder loop wheel machine 7 and nose girder overhead traveling crane 8 being mounted on bale handle main beam 1.Guide girder machine 2 includes that nose girder main beam and being separately positioned on is led
The supporting leg of beam main beam rear and front end, and the lower section of bale handle main beam 1 is set by nose girder loop wheel machine 7 and auxiliary leg 10;It mentions
Fixed by girder linking beam 9 between beam main beam 1, the lower part of girder linking beam 9, which is provided with, is used to support girder linking beam 9
Auxiliary leg 10, the lower part of auxiliary leg 10 are provided with rotatable auxiliary leg crossbeam 11;The lower part of nose girder loop wheel machine 7 is provided with
Nose girder loop wheel machine suspender belt 71, nose girder loop wheel machine suspender belt 71 are made of upper and lower shoulder pole girder and spiral sunpender, and effect is will to assist branch
Leg crossbeam 11 and the position for being installed to 24 meters of camber beams of frame from 32 meters of erect-positions with upper bit, 2 via hole of auxiliary nose-girder machine.Pass through nose girder
Auxiliary leg crossbeam 11 and above section are installed to the position of 24 meters of camber beams of frame, auxiliary leg 10 by loop wheel machine 7 from 32 meters of erect-positions
Lower traveling and hook can voluntarily in place;Hanging crossbeam 12 is additionally provided between bale handle main beam 1, hanging crossbeam 12 is located at bale handle
The lower part of the front end of main beam 1, hanging crossbeam 12 is provided with the erecting by overhang 13 of 2 via hole of auxiliary nose-girder machine.24m Span Beam waits for frame
When via hole aligns, since the launching nose length of guide girder machine 2 is too long, when nose girder overhead traveling crane runs to the front end of bale handle main beam 1, lead
Operation in place, needs erecting by overhang 13 temporarily to sling nose girder to beam not yet, so that retract nose girder overhead traveling crane 8 slings nose girder again,
Face when nose girder overhead traveling crane 8 retracts the interim suspension centre, i.e. 2 via hole of guide girder machine for mentioning nose girder again when erecting by overhang 13 is 2 via hole of guide girder machine
When hang the girder of guide girder machine 2.
Referring to fig. 2, Fig. 9, the lower part of lifting beam machine rear support leg 3 are provided with the lifting beam machine rear support leg traveling flat turn for facilitating it to rotate
Mechanism, lifting beam machine rear support leg traveling flat turn mechanism includes rear support leg traveling wheel assembly 16 and is disposed above in the present embodiment
Rear support leg crossbeam 17, rear support leg traveling wheel assembly 16 include rear support leg roller box 161 and the rear support leg travelling wheel for being set to its inside
162, rotatable vertical pivot 18 is provided between rear support leg roller box 161 and rear support leg crossbeam 17;16 He of rear support leg traveling wheel assembly
Being provided on the surface of revolution between rear support leg crossbeam 17 makes the two rotate more flexible wearing plate 19.
Referring to fig. 4, the lower part of auxiliary leg crossbeam is provided with auxiliary leg traveling roller box 114, and auxiliary leg crossbeam 11 wraps
Include the upper auxiliary leg crossbeam 112 and lower auxiliary leg crossbeam 113 of lower leaf, the top of upper auxiliary leg crossbeam 112 with it is auxiliary
Supporting leg 10 is helped to be fixedly connected, lower auxiliary leg crossbeam 113 is fixedly connected with auxiliary leg traveling roller box 114, auxiliary leg crossbeam
11 middle part is provided with vertical rotary shaft 15, and upper auxiliary leg crossbeam 112 and lower auxiliary leg crossbeam 113 can be around rotary shafts 15
Rotation.
Referring to Fig. 1, Fig. 2, Fig. 4, Fig. 6, Fig. 7, Fig. 8, transition rail bridge 14 is provided between beam car and guide girder machine 2.Girder
Linking beam 9 and hanging crossbeam 12 are box-structure, and the front view structure of the two is up big and down small wedge shape, the both ends of the two
Pass through mutually matched flanged joint with bale handle main beam 1.
The utility model is set a roof beam in place at 24 meters of sharp radius curve when it is implemented, guide girder machine 2 and 1 longitudinal centre line angle of girder
Greatly, so that the auxiliary leg 10 on girder 1 when 32 meters of positions deviates 2 center of guide girder machine, auxiliary leg is not suitable for standing on guide girder machine 2
Position, therefore girder linking beam 9 and auxiliary leg are mounted on 24 meters of beam positions, be conducive to auxiliary leg 10 and be supported on guide girder machine 2,
Operation is walked after realization;Hanging crossbeam 12 is to increase newly on the basis of former Bridge Erector, assists the via hole for completing guide girder machine 2, it is desirable that dismounting
Girder linking beam 9 and hanging crossbeam 12, to realize evolution, so both for box-structure, main view be it is upper it is big under
Small wedge structure, and both ends are mounted on the flange convenient for connecting with bale handle main beam 1, it is easy to disassemble.
Since lower leaf and middle part are provided with rotary shaft 15, the upper and lower level of auxiliary leg crossbeam 11 on auxiliary leg crossbeam 11
It can be rotated around rotary shaft 15, have certain angle between bale handle main beam 1 and the girder of guide girder machine 2 before 2 via hole of lifting beam machine, in order to
Enable auxiliary leg 10 along the normal traveling of guide girder machine 2, on auxiliary leg crossbeam 11 be provided with rotary shaft 15, the mechanism of action with
The vertical pivot 18 of lifting beam machine rear support leg 3 is similar: keeping equipment auxiliary leg running mechanism in traveling micro flat around rotary shaft 15
Turn.
When sharp radius curve radius equipment via hole, lifting beam machine rear support leg 3 needs biggish offset to be just able to achieve lifting beam machine
The via hole of rear support leg 3 in place when be laterally in the middle part of concrete beam body.Track is dialled in order to realize biggish traversing amount and reduce
Difficulty of construction is provided with vertical pivot 18 between rear support leg travelling wheel 162 and rear support leg crossbeam 17, makes rear support leg roller box 161 can be with
Around the micro flat turn of vertical pivot 18;After track realizes certain deviation amount by dialling rail, rear support leg roller box 161 is along meeting when track traveling
Simultaneously around 18 flat turn of vertical pivot, finally make lifting beam machine rear support leg 3 in place to correct position along track, the surface of revolution is equipped with wearing plate 19,
It can make to rotate between rear support leg travelling wheel 162 and rear support leg crossbeam 17 flexible.
Transition rail bridge 14 described in the utility model, for connecting beam car and guide girder machine 2, realization carries beam trolley on the back and packs case
Beam is traveled to from beam car on guide girder machine 2, lifting beam machine rear support leg 3 be it is previous across beam face erect-position, relative to lifting beam machine
Front leg strut 4 for pier top pinner erect-position, erect-position size it is restricted can be loose it is more, therefore in order to which the convenience of construction is by bale handle
The installation position at across outer translation and setting one of machine rear support leg 3, which results in the length of original transition rail bridge 14 to need to lengthen
One lifting beam machine rear support leg 3 increases rail joint on the basis of former transition rail bridge 14 and is suitable for smaller part to across outer translational movement
Diametal curve construction.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.