CN203890889U - Supporting leg of single-arm box girder bridge erecting machine - Google Patents
Supporting leg of single-arm box girder bridge erecting machine Download PDFInfo
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- CN203890889U CN203890889U CN201420207576.0U CN201420207576U CN203890889U CN 203890889 U CN203890889 U CN 203890889U CN 201420207576 U CN201420207576 U CN 201420207576U CN 203890889 U CN203890889 U CN 203890889U
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Abstract
The utility model relates to the technical field of the bridge erecting machines and discloses a supporting leg of a single-arm box girder bridge erecting machine. The supporting leg comprises a third upper cross beam, a rotating oil cylinder and at least two supporting columns; the supporting columns are fixedly mounted at the two ends of the third upper cross beam, respectively; the third upper cross beam is hinged to a boom; the rotating oil cylinder is capable of driving the supporting columns to rotate around the hinged shaft of the third upper cross beam and the boom. The supporting leg of the single-arm box girder bridge erecting machine is supported by use of a vertical hoist cylinder; the support leg does not need to be widened and is rotated upwards to be horizontal to feed a girder; after the girder is fed in place, the supporting leg is rotated to be vertical for supporting, and therefore, the problem of the supporting leg in the girder feeding process is solved; the supporting leg of the single-arm box girder bridge erecting machine has the characteristics of simple structure, low weight, simple and convenient use and high automatic procedure.
Description
Technical field
The utility model relates to Bridge Erector technical field, relates in particular to a kind of supporting leg of single armed box beam bridge formation machine, concrete is a kind of supporting leg without widening single armed box beam bridge formation machine that can feeding beam.
Background technology
Bridge Erector is exactly that prefabricated beam sheet is placed into the equipment that prefabricated bridge pier gets on.Bridge Erector belongs to crane category, because its major function is that beam sheet is mentioned, puts down after being then transported to position, and Bridge Erector is divided into and sets up road bridge, conventional railway bridge, and railway of passengers' private line bridges etc. are several.
The existing Bridge Erector that can transport large-tonnage beam sheet mostly is twin beams Bridge Erector, single armed box beam bridge formation machine is when setting up railway bridge, cannot complete feeding beam in tunnel, as the application number single armed box beam bridge formation machine that is 201020549604.9, wherein, because beam body need to pass through No. 3 supporting legs, so empty size must be greater than the width of beam in No. 3 supporting legs, No. 3 supporting legs after widening cannot pass through tunnel.
In view of the defect of above-mentioned prior art, need to provide without just widen can feeding beam single armed box beam bridge formation machine supporting leg.
Utility model content
When the technical problems to be solved in the utility model is existing single beam girder erecting feeding beam, need to widen supporting leg, make the Bridge Erector cannot be by the problem in tunnel.
In order to solve the problems of the technologies described above, the utility model provides a kind of supporting leg of single armed box beam bridge formation machine, comprising: the 3rd top rail, rotary oil cylinder and at least two pillars; Described pillar is fixedly mounted on respectively the two ends of described the 3rd top rail, and described the 3rd top rail and horn are hinged, and described rotary oil cylinder can drive described pillar around the jointed shaft rotation of described the 3rd top rail and described horn.
Wherein, described the 3rd top rail is provided with stretching seat, and described stretching seat one end is fixed on described the 3rd top rail, and the other end is fixed on the piston rod of described rotary oil cylinder.
Wherein, described rotary oil cylinder is arranged on described horn.
Wherein, described pillar comprises guide pillar and is arranged on keeping a foothold in described guide pillar, and the telescopically of keeping a foothold described in the 3rd oil cylinder can drive is arranged in described guide pillar.
Wherein, also comprise and support secondary bar, the end of described horn is provided with powered carriage, the secondary bar one end of described support and described column articulated, the other end and described powered carriage are hinged.
Wherein, the top of described the 3rd top rail is provided with the first free bearing, and the bottom of described horn is provided with the second free bearing corresponding to described the first free bearing, and described the first free bearing and described the second free bearing are hinged by axle.
Wherein, also comprise the 3rd lower transverse beam, described the 3rd lower transverse beam is provided with connection seat, and described the 3rd oil cylinder is installed by described connection seat and described the 3rd lower transverse beam.
Wherein, described the 3rd oil cylinder and described rotary oil cylinder are driven by motor.
Technique scheme tool of the present utility model has the following advantages: the supporting leg of the single armed box beam bridge formation machine that the utility model provides utilizes vertical lift oil cylinder to prop supporting leg, need not widen supporting leg, but being rotated up into level, supporting leg carries out feeding beam, after putting in place Deng feeding beam, again supporting leg is rotated in vertical support, solve the problem of supporting leg in feeding beam process, there is feature simple in structure, lightweight, easy to use and that automated procedures are high.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the utility model embodiment single armed box beam bridge formation machine;
Fig. 2 is the side structure schematic diagram of the utility model embodiment single armed box beam bridge formation machine;
Fig. 3 is the Facad structure schematic diagram of the second supporting leg of the utility model embodiment single armed box beam bridge formation machine;
Fig. 4 is the side structure schematic diagram of the second supporting leg of the utility model embodiment single armed box beam bridge formation machine;
Fig. 5 is the side structure schematic diagram of the hanging of the utility model embodiment single armed box beam bridge formation machine;
Fig. 6 is the Facad structure schematic diagram of the hanging of the utility model embodiment single armed box beam bridge formation machine;
Fig. 7 is the side structure schematic diagram of the hanging beam overhead crane of the utility model embodiment single armed box beam bridge formation machine;
Fig. 8 is the Facad structure schematic diagram of the hanging beam overhead crane of the utility model embodiment single armed box beam bridge formation machine;
Fig. 9 is the Facad structure schematic diagram of the 3rd supporting leg of the utility model embodiment single armed box beam bridge formation machine;
Figure 10 is the side structure schematic diagram of the 3rd supporting leg of the utility model embodiment single armed box beam bridge formation machine.
In figure: 1: the three supporting leg; 2: the second supporting legs; 3: the first supporting legs; 4: horn; Hanging in 5: the second; 6: powered carriage; 7: the second hanging beam overhead cranes; 8: the first hanging beam overhead cranes; Hanging in 9: the first; 10: beam sheet; 11: leg; 12: guide pillar; 13: the three lower transverse beams; 14: the three oil cylinders; 15: the three top rails; 16: free bearing; 17: stretching seat; 18: support secondary bar; 21: bearing diagonal; 23: truss; 24, second cross beam; 25: transverse-moving mechanism; 26: bearing; 31: rotary oil cylinder; 51: bracing frame; 52: hanging the first roller trolley; 53: hanging wheels; 54: hanging the second roller trolley; 55: pin; 56: column; 57: brace summer; 58: spherical bearing; 59: reductor; 71: vertical rod; 72: hanging beam shoulder pole; 73: driving wheels; 74: vehicle frame; 75: pulley; 76: conductor rope; 77: driving roller trolley.
The specific embodiment
In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.Term " interior ", " on ", orientation or the position relationship of the indication such as D score, " left side ", " right side " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, single armed box beam bridge formation machine, comprising: horn 4,9, two hanging beam overhead cranes of first supporting leg 3, the second supporting leg 2, the three supporting leg 1, the second hanging the 5 and first hangings; In the present embodiment, adopted the first supporting leg 3, the second supporting leg 2 and 1 three supporting legs of the 3rd supporting leg, four or five supporting legs also can be set as required, the present embodiment adopts three supporting legs more to simplify compared with the via hole operation of four supporting legs, and the efficiency of bridge formation improves.The main bearing carrier of horn 4 conduct, horn 4 adopts box-girder assembled structures, can be formed by more piece unit beam pin joint.Second hanging the 5 and first hanging is equipped with driving mechanism and hanging walking mechanism on 9, driving mechanism drive horn 4 by hanging walking mechanism along the vertically moving of horn 4, the long axis direction of horn 4 is longitudinal.And hanging can be locked on horn 4, and the 3rd supporting leg 1 is positioned at one end of horn 4, and the second supporting leg 2 is between the first supporting leg 3 and the 3rd supporting leg 1.The first supporting leg 3 is rotating to be arranged in the second hanging 5, and the second supporting leg 2 is rotating to be arranged in the first hanging 9, and the second hanging 5 drives the first supporting leg 3 to vertically move along horn 4, and the first hanging 9 drives the second supporting leg 2 to vertically move along horn 4.Two hanging beam overhead cranes, comprise the first hanging beam overhead crane 8 and the second hanging beam overhead crane 7, are all arranged at movably horn 4 belows, and wherein, each hanging beam overhead crane comprises hanging beam walking mechanism, and hanging beam overhead crane vertically moves along horn 4 by hanging beam walking mechanism.
Single armed box beam bridge formation machine has the following advantages: three supporting legs make operation simple via convenient, and longitudinally resistance to capsizing is strong, and stability is good; Because the first supporting leg 3 is rotating, be arranged in the second hanging 5, the second supporting leg 2 is rotating to be arranged in the first hanging 9, so Bridge Erector can meet bale handle in tunnel, access tunnel mouth is set a roof beam in place; Bridge Erector can meet single track bridge, two-wire twin beams line, and center distance >=5m sets up; Beam transportation vehicle is packed interval transfer of Bridge Erector and was met tunnel, the requirement of speed per hour 250km/h and gauge thereof; Bridge Erector meets curved bridge, and sweep >=2000m sets up; Bridge Erector vertical shift and the vertical shift of hanging beam dolly adopt chain to force to drive, safe and reliable; Bridge Erector complete machine when the tunnel, without dismounting, can directly be packed by tunnel by Beam transportation vehicle after the height of each number post being done to corresponding adjustment by the hydraulic jack of each supporting leg, saving of work and time, and brief construction period, increases work efficiency.Single armed box beam bridge formation machine is mainly used in setting up the concrete beam sheet of highway bridge and railroad bridge, belong to single armed freely-supported type, in full width, build bridge, mechanically can realize the beam that once falls when traversing and put in place, have simple in structure, lightweight, transport easy to assembly, function admirable, feature that automated procedures are high.
As shown in Figure 2, Figure 3 and Figure 4, in single armed box beam bridge formation machine, the second supporting leg 2 is Bridge Erector main supporting members when setting a roof beam in place, simultaneously it also has Bridge Erector and when longitudinal gradient is set a roof beam in place and become across operation, adjusts the function of girder vertical equity, is again the driving pillar that Bridge Erector via hole vertically moves.While setting a roof beam in place, the second supporting leg 2 of Bridge Erector is supported on prefabricated case beam leading section.The second supporting leg 2 is portal-framed structure, comprise crossbeam 24 and two parallel truss 23, truss 23 is controlled and can be stretched by hydraulic jack, crossbeam 24 is arranged between two parallel truss 23, the bottom that truss 23 is installed in truss 23 is provided with bearing 26, between truss 23 and bearing 26, be separately installed with bearing diagonal 21, can strengthen the effect of supporting.In the present embodiment, on the crossbeam 24 of the second supporting leg 2, be also provided with transverse-moving mechanism 25, transverse-moving mechanism 25 is sideslip oil cylinder, can drive horn 4 to carry out traversing, is laterally the left and right directions of horn 4 in Fig. 2, each 0.5m of range left and right, finely tunes by 25 pairs of Bridge Erector lateral attitudes of transverse-moving mechanism.
In single armed box beam bridge formation machine, the first supporting leg 3 is also the main supporting member of Bridge Erector when setting a roof beam in place, and simultaneously it also has Bridge Erector and when longitudinal gradient is set a roof beam in place and become across operation, adjusts the function of girder vertical equity, is again the driving pillar that Bridge Erector via hole vertically moves.While setting a roof beam in place, the first supporting leg 3 of Bridge Erector is supported on the place ahead pier first half, and the first supporting leg 3 is portal-framed structure, and in the present embodiment, the first supporting leg 3 is also provided with extension, and other structures are consistent with the structure of the second supporting leg 2.On the first supporting leg 3, be also provided with and drive it to carry out traversing transverse-moving mechanism, transverse-moving mechanism is positioned on the crossbeam of the first supporting leg 3, and transverse-moving mechanism 25 is sideslip oil cylinder, can drive horn 4 to carry out traversing, each 0.5m of range left and right, also can finely tune the lateral attitude of Bridge Erector.
As shown in Figure 2, Figure 5 and Figure 6, second in single armed box beam bridge formation machine hanging the 5 and first hanging 9 is supporting horn 4 and the main bearing carrier of hanging beam load, the operating modes of setting a roof beam in place such as hanging can realize that complete machine is traversing, vertical shift and the second supporting leg 2, the first supporting leg 3 via holes.Hanging 5 comprises: bracing frame 51, column 56 and brace summer 57; Bracing frame 51 is arranged on horn 4 tops and is positioned at the below of crossbeam 24, and brace summer 57 is positioned at the top of crossbeam 24.Column 56 connects bracing frame 51 and brace summer 57 through crossbeam 24, and column 56 bottoms are provided with pin 55, the second hangings 5 and can lock with horn 4 by pin 55, and the first hanging 9 is also by pin and horn 4 lockings.The first supporting leg 3 and the second supporting leg 2 can rotate around column 56 respectively.Second hanging the 5 and first hanging 9 also comprises spherical bearing 58, and brace summer 57 contacts with spherical bearing 58 spherical pairs, and brace summer 57 contacts with spherical bearing 58 spherical pairs and can, when driving horn 4 to move, make the second hanging 5 and the first hanging 9 stressed more even.Brace summer 57 bottoms are provided with wearing plate, can prevent that the first supporting leg 3 and the second supporting leg 2 from, when column 56 rotation, producing wearing and tearing to brace summer 57.The first supporting leg 3 is connected with horn 4 by hanging 5 respectively with the second supporting leg 2.Hanging walking mechanism is provided with roller trolley, first hanging 9 and described second hanging 5 respectively by roller trolley along described horn 4 vertical shifts, roller trolley is arranged between hanging and horn 4, roller trolley is connected with horn 4, in the present embodiment, hanging is provided with four rolling dolly, between bracing frame 51 and horn 4 tops, be respectively equipped with two hanging the second roller trolleys 54, between bracing frame 51 and horn 4 belows, be respectively equipped with two hanging the first roller trolleys 52, the weight of the beam sheet 10 of the single armed box beam bridge formation machine suspension bracket providing due to the present embodiment is larger, roller trolley is larger than the strength of gear teeth, make hanging beam process more stable.The drive unit of the second hanging 5 is also provided with reductor 59, can slow down by pair roller dolly, thereby controls the speed of travel of hanging.The structure of the first hanging 9 is consistent with the structure of the second hanging 5.
The hanging beam overhead crane 7 of the single armed box beam bridge formation machine that as shown in Figure 2 and Figure 7, single the utility model provides is the Main Hoisting Machinery of Bridge Erector handling concrete box girder.Hanging beam overhead crane 7 comprises: driving main body, hanging beam shoulder pole 72, hoist engine and vertical rod 71; Driving main body can lock with horn 4 by pin, and driving main body drives hanging beam shoulder pole 72 to move up and down by conductor rope, and hanging beam shoulder pole 72 is for the weight of carrier bar sheet 10, and hoist engine is wound with cable wire, to control hanging beam shoulder pole 72 moving up and down along horn 4.Vertical rod 71 is arranged on hanging beam shoulder pole 72, and vertical rod 71 is through hanging beam shoulder pole 72, for beam sheet 10 is fixed on to hanging beam shoulder pole 72, for clamped beam sheet 10.Adopt fixedly large-tonnage beam sheet 10 of vertical rod 71, vertical rod 71 can reach certain intensity, and what make that beam sheet 10 fixes is more stable.Hanging beam overhead crane 7 travelings are vertically moved by sprocket wheel chain mode by 2 5.5KW running motor reducers, compared with the connected mode that adopts rack-and-pinion, more cost-saving.Hoist and adopt the dilatory mode that hoists of hoist engine.Hanging beam walking mechanism is provided with roller trolley 77, and roller trolley 77 is arranged between horn 4 and driving main body.Driving main body is by roller trolley 77 along horn 4 vertical shifts, and roller trolley is connected with horn 4.Horn 4 bottoms are provided with base plate, and roller trolley 77 is arranged between driving main body and base plate inner side.Roller trolley 77 comprises roller vehicle frame and roller, and roller is rollably arranged on roller vehicle frame, and roller vehicle frame is fixedly mounted in driving main body, and roller can be along longitudinal rolling of horn 4.Roller trolley 77 is vertically moved by driven by motor sprocket wheel chain.Compared with the rack-and-pinion adopting before, the cost of chain sprocket is lower, and model is more, and the space that can select is larger.Motor is connected with reductor 59, and roller trolley 77 is provided with 5-10 roller.The intensity of the strength ratio gear of roller trolley 77 is large, when lifting large-tonnage beam sheet 10, can not cause damage by pair roller dolly 77, and hanging beam overhead crane can normally be walked, and normally works.And have simple in structure, transport feature easy to assembly, function admirable.In the present embodiment, hanging beam overhead crane 7 is provided with two roller trolleys, between hanging beam overhead crane 7 and horn 4, be respectively equipped with two driving roller trolleys 77, driving main body can vertically moving along horn 4 by roller trolley 77, the driving main body of hanging beam overhead crane 7 is provided with vehicle frame 74, in vehicle frame 74, be provided with pulley 75, hanging beam shoulder pole 72 is provided with driving wheels 73, and pulley 75 is connected by the conductor rope in guide rope device 76 with driving wheels 73, and pulley 75 drives driving wheels 73 to move up and down by conductor rope.
As shown in Figure 1, single armed box beam bridge formation machine also comprises powered carriage 6, and powered carriage 6 is located at the end of horn 4, and the single armed box beam bridge formation machine in the present embodiment is provided with two powered carriage, a powered carriage is arranged on one end of horn 4, and another powered carriage is arranged on the other end of horn 4.Driving mechanism is arranged in powered carriage 6, compared with between driving mechanism is arranged on hanging 5 or hanging beam overhead crane 7, be arranged on that powered carriage 6 is interior can alleviate hanging 5 and the overall weight of hanging beam overhead crane 7.
As shown in Figure 9 and Figure 10, the supporting leg of the single armed box beam bridge formation machine that the utility model provides, structure is consistent with the structure of the 3rd supporting leg 1, and the 3rd supporting leg 1 is the main supporting member of Bridge Erector when setting a roof beam in place with cantilever via hole.The 3rd supporting leg 1 is provided with rotary oil cylinder 31, and rotary oil cylinder 31 drives the 3rd supporting legs 1 rotation, and rotary oil cylinder 31 can drive the 3rd supporting leg 1 to be rotated into the state with horn 4 parallel longitudinals.Rotating the 3rd supporting leg 1 can widen the width of the 3rd supporting leg 1 and just can make Beam transportation vehicle enter.Single armed box beam bridge formation machine also comprises the secondary bar 18 of support, and the two ends of supporting secondary bar 18 are hinged with the first supporting leg 3 and horn 4 respectively, support secondary bar 18 hinged with the first supporting leg 3 and powered carriage 6 respectively in the present embodiment.Bridge Erector the 3rd supporting leg 1 when feeding beam state is realized the function of shrinking up and down by telescopic oil cylinder 31, by rotary oil cylinder, realizes spin-up backward.Behind Bridge Erector place, during across lift heavy dolly lift tank beam, rotation the 3rd supporting leg 1 utilizes vertical lift oil cylinder to prop the 3rd supporting leg 1.Single armed box beam bridge formation machine need not be widened the 3rd supporting leg 1, but the 3rd supporting leg 1 is rotated up into level, carries out feeding beam, the 3rd supporting leg 1 is rotated in vertical support after waiting feeding beam to put in place again, solves the problem of the 3rd supporting leg 1 in feeding beam process.
The supporting leg 1 of the single armed box beam bridge formation machine that the utility model provides comprises: the 3rd top rail 15, rotary oil cylinder 31 and at least two pillars; Pillar is fixedly mounted on respectively the two ends of the 3rd top rail 15, and pillar is positioned at the below of the 3rd top rail 15.Pillar comprises guide pillar 12 and 11, the three oil cylinders 14 of keeping a foothold that are arranged in guide pillar 12 can drive 11 telescopicallies of keeping a foothold to be arranged in guide pillar 12.The 3rd top rail 15 is hinged with horn 4, and the top of the 3rd top rail 15 is provided with the first free bearing 16, and horn is provided with the second free bearing corresponding to the first free bearing 16, and the first free bearing 16 and the second free bearing are hinged by pin.The 3rd top rail 15 is provided with stretching seat 17, and stretching seat 17 one end are fixed on the 3rd top rail 15, and the other end is fixed on the piston rod of rotary oil cylinder 31, and rotary oil cylinder 31 is arranged on horn 4.Rotary oil cylinder 31 can drive pillar jointed shaft rotation with horn 4 around the 3rd top rail 15, and the 3rd oil cylinder 14 and rotary oil cylinder 15 are driven by motor.
The supporting leg 1 of the single armed box beam bridge formation machine that the utility model provides also comprises and supports secondary bar 18 and the 3rd lower transverse beam 13, supports secondary bar 18 one end with column articulated, and the powered carriage 6 of the other end and horn 4 is hinged.The 3rd lower transverse beam 13 is provided with connection seat, and the 3rd oil cylinder 14 is installed by connection seat and the 3rd lower transverse beam 13.
During single armed box beam bridge formation machine via hole, during the present embodiment single armed box beam bridge formation erecting 32m beam sheet, pack up hanging beam overhead crane and open to Bridge Erector left end, Bridge Erector is prepared via hole; Pack up the 3rd supporting leg 1, drive the driving mechanism of first hanging the 9, second hanging 5, horn 4 32.7m that moves right, two hanging beam dollies are opened simultaneously near the second supporting leg 2 and are done counterweight; Prop the 3rd supporting leg 1, pack up the second supporting leg 2 32.7m that moves right; The second supporting leg 2, packs up the first supporting leg 3 32.7m that moves right and puts in place; Two hanging beam dollies are opened to the right-hand member of horn 4 and done counterweight, pack up the 3rd supporting leg 1 perk backward, wait for feeding beam.Need not widen the 3rd supporting leg makes Bridge Erector to have feature simple in structure, lightweight, easy to use and that automated procedures are high by tunnel.
When single armed box beam bridge formation machine is set a roof beam in place, Bridge Erector enters state to be set a roof beam in place, Beam transportation vehicle feeding beam, Beam transportation vehicle feeding beam enters the afterbody of Bridge Erector left end, prop 3, two hanging beam dollies of the first supporting leg sling beam sheet 10 move right to wait to set a roof beam in place across, two hanging beam dollies beam that synchronously falls, beam sheet 10 is in place.
When the transition of single armed box beam bridge formation machine and excessively tunnel, Bridge Erector is packed transition and is crossed tunnel operating mode and is divided into two kinds of situations, when by the slightly shorter tunnel of length, can realize by Bridge Erector falling head self stride, long distance shifts or by Beam transportation vehicle, packs Bridge Erector during tune and realizes.When long distance shifts, the first supporting leg 3 is packed up over after beam face, the second supporting leg 2 and the 3rd supporting leg 1 support, the second supporting leg 2 is moved right and prop the second supporting leg 2 after near the first supporting leg 3, pack up the 3rd supporting leg 1 and standard knot is folded and packed up, Beam transportation vehicle and transhipment bracket thereof are opened to appropriate location in bridge ventral chamber, receive the 3rd supporting leg 1, the second supporting leg 2 falls within on the transhipment bracket of Beam transportation vehicle horn 4, bundled after Bridge Erector and Beam transportation vehicle, and the second supporting leg 2 is horizontally rotated to 65 ° and horn 4 lockings, Beam transportation vehicle Beam transportation vehicle can be packed the whole transition of Bridge Erector or be transported to another circuit and set up.
When single armed box beam bridge formation machine is used, Bridge Erector enters state to be set a roof beam in place, Beam transportation vehicle feeding beam, and Beam transportation vehicle feeding beam enters Bridge Erector afterbody, prop the first supporting leg 3, before and after the hanging beam dolly case beam of slinging move forward to and wait to set a roof beam in place across, two hanging beam dollies beam that synchronously falls, beam sheet is in place, pack up the 3rd supporting leg 1, drive the driving mechanism of first hanging the 9, second hanging 5, horn 4 32.7m that moves right, two hanging beam dollies are opened simultaneously near the second supporting leg 2 and are done counterweight; Prop the 3rd supporting leg 1, pack up the second supporting leg 2 32.7m that moves right; The second supporting leg 2, packs up the first supporting leg 3 32.7m that moves right and puts in place; Two hanging beam dollies are opened to the right-hand member of horn 4 and done counterweight, pack up the 3rd supporting leg 1 perk backward, wait for feeding beam next time.
In sum, single armed box beam bridge formation machine enters Bridge Erector afterbody at Beam transportation vehicle feeding beam, props the first supporting leg, and the hanging beam dolly case beam of slinging in front and back moves forward to and waits to set a roof beam in place across, two hanging beam dollies beam that synchronously falls; Single armed box beam bridge formation machine can pass through tunnel, belongs to single armed freely-supported type, builds bridge, mechanically can realize the beam that once falls when traversing and put in place in full width, have simple in structure, lightweight, transport easy to assembly, function admirable, feature that automated procedures are high.
When the supporting leg of the single armed box beam bridge formation machine that the utility model provides is used, by rotary oil cylinder, realize spin-up backward.Behind Bridge Erector place, during across lift heavy dolly lift tank beam, swing leg utilizes vertical lift oil cylinder to prop supporting leg.Single armed box beam bridge formation machine need not be widened supporting leg, but supporting leg is rotated up into level, carries out feeding beam, supporting leg is rotated in vertical support after waiting feeding beam to put in place again, solves the problem of supporting leg in feeding beam process.
The supporting leg of the single armed box beam bridge formation machine that the utility model provides utilizes vertical lift oil cylinder to prop supporting leg, need not widen supporting leg, but being rotated up into level, supporting leg carries out feeding beam, after putting in place Deng feeding beam, again supporting leg is rotated in vertical support, solve the problem of supporting leg in feeding beam process, there is feature simple in structure, lightweight, easy to use and that automated procedures are high.
Above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1. a supporting leg for single armed box beam bridge formation machine, is characterized in that, comprising: the 3rd top rail (15), rotary oil cylinder (31) and at least two pillars; Described pillar is fixedly mounted on respectively the two ends of described the 3rd top rail (15), described the 3rd top rail (15) is hinged with horn (4), and described rotary oil cylinder (31) can drive the jointed shaft rotation with described horn (4) around described the 3rd top rail (15) of described pillar.
2. the supporting leg of single armed box beam bridge formation machine according to claim 1, it is characterized in that: described the 3rd top rail (15) is provided with stretching seat (17), described stretching seat (17) one end is fixed on described the 3rd top rail (15), and the other end is fixed on the piston rod of described rotary oil cylinder (31).
3. the supporting leg of single armed box beam bridge formation machine according to claim 1, is characterized in that: described rotary oil cylinder (31) is arranged on described horn (4).
4. the supporting leg of single armed box beam bridge formation machine according to claim 1, it is characterized in that, described pillar comprises guide pillar (12) and is arranged on keep a foothold (11) in described guide pillar (12), and (11) telescopically of keeping a foothold described in the 3rd oil cylinder (14) can drive is arranged in described guide pillar (12).
5. the supporting leg of single armed box beam bridge formation machine according to claim 1, it is characterized in that: also comprise and support secondary bar (18), the end of described horn (4) is provided with powered carriage (6), the secondary bar of described support (18) one end and described column articulated, the other end and described powered carriage (6) are hinged.
6. the supporting leg of single armed box beam bridge formation machine according to claim 1, it is characterized in that: the top of described the 3rd top rail (15) is provided with the first free bearing (16), the bottom of described horn (4) is provided with the second free bearing corresponding to described the first free bearing (16), and described the first free bearing (16) and described the second free bearing are hinged by pin.
7. the supporting leg of single armed box beam bridge formation machine according to claim 4, it is characterized in that: also comprise the 3rd lower transverse beam (13), described the 3rd lower transverse beam (13) is provided with connection seat, and described the 3rd oil cylinder (14) is installed by described connection seat and described the 3rd lower transverse beam (13).
8. the supporting leg of single armed box beam bridge formation machine according to claim 4, is characterized in that: described the 3rd oil cylinder (14) and described rotary oil cylinder (15) are driven by motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207576.0U CN203890889U (en) | 2014-04-23 | 2014-04-23 | Supporting leg of single-arm box girder bridge erecting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207576.0U CN203890889U (en) | 2014-04-23 | 2014-04-23 | Supporting leg of single-arm box girder bridge erecting machine |
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| CN203890889U true CN203890889U (en) | 2014-10-22 |
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| CN201420207576.0U Expired - Lifetime CN203890889U (en) | 2014-04-23 | 2014-04-23 | Supporting leg of single-arm box girder bridge erecting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002221A (en) * | 2018-01-23 | 2018-05-08 | 中国水利水电夹江水工机械有限公司 | A kind of combined type end carriage connection structure |
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2014
- 2014-04-23 CN CN201420207576.0U patent/CN203890889U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002221A (en) * | 2018-01-23 | 2018-05-08 | 中国水利水电夹江水工机械有限公司 | A kind of combined type end carriage connection structure |
| CN108002221B (en) * | 2018-01-23 | 2019-12-20 | 中国水利水电夹江水工机械有限公司 | Combined end beam connecting structure |
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| CX01 | Expiry of patent term |
Granted publication date: 20141022 |