CN217781774U - Bridge girder erection machine suitable for synchronous erection construction of steel plate girder and bridge deck - Google Patents
Bridge girder erection machine suitable for synchronous erection construction of steel plate girder and bridge deck Download PDFInfo
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- CN217781774U CN217781774U CN202222180122.6U CN202222180122U CN217781774U CN 217781774 U CN217781774 U CN 217781774U CN 202222180122 U CN202222180122 U CN 202222180122U CN 217781774 U CN217781774 U CN 217781774U
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Abstract
The utility model discloses a bridge girder erection machine suitable for construction is erect in step to steel sheet roof beam and decking, including the main spandrel girder, be provided with on the main spandrel girder and play to rise the overhead traveling crane, the below of main spandrel girder is provided with mobilizable preceding strutting arrangement, well strutting arrangement and back strutting arrangement, still be provided with between well strutting arrangement and the back strutting arrangement and anti-hold in the palm the landing leg, the symmetry sets up two sets of anti-landing legs that hold in the palm on two sets of girders by first bearing roller wheel case around, first over-and-under type landing leg group and supporting beam frame are constituteed, the lift end sub-unit connection that two sets of first over-and-under type landing legs were organized has supporting beam frame. The utility model discloses can accomplish steel plate roof beam and decking and erect the construction in step safely and stably, and can carry out the nimble adjustment in various gesture ground according to on-the-spot service environment, have stronger universal performance.
Description
Technical Field
The utility model relates to a bridge erection construction field especially relates to a bridge girder erection machine suitable for construction is erect in step to steel sheet roof beam and decking.
Background
With the development of economy in China, bridge construction technology is rapidly developed, and the traditional bridge construction method has a plurality of defects. In the construction process of the traditional bridge, the traditional support is generally used for construction, and the construction is carried out in a cast-in-place construction mode, so that the construction period is long, the influence on traffic is large, the overall energy consumption is high, the manual workload on the site is large, and the construction cost is high; and the traditional bridge construction support supports cast-in-place potential safety hazard is large, and the influence on the urban environment is large. With the urban construction and the enhancement of the environment protection consciousness of the country, the steel structure assembly type bridge in the new mode gradually replaces the traditional mode bridge.
The steel structure assembled bridge has the following advantages: the method has the advantages that the physical service life is long under normal coating; the ductility, the toughness and the shock resistance are excellent; the method is suitable for rapid construction; quality is easy to guarantee; the structure has small dead weight and can extend span; sixthly, the tensile strength is high, the elastic modulus is high, and the material utilization rate is high; and the steel beam bridge is easy to install and erect.
The existing bridge girder erection machine mainly comprises a main bearing beam and two crown blocks on the main bearing beam, wherein a front group of supporting travelling mechanisms, a middle group of supporting travelling mechanisms and a rear group of supporting travelling mechanisms are arranged below the main bearing beam. The existing bridge girder erection machine only depends on three groups of supports, namely a front support, a middle support and a rear support, when spanning and installing a steel plate girder or a bridge deck, the height of each support walking device is inconvenient to adjust, and the stability and the flexibility are all to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bridge girder erection machine suitable for construction is erect in step to steel sheet roof beam and decking can accomplish steel sheet roof beam and decking and erect the construction in step safely and stably, and can carry out the nimble adjustment in various gesture ground according to on-the-spot service environment, has stronger commonality.
The utility model adopts the following technical proposal:
a bridge girder erection machine suitable for synchronous erection construction of a steel plate girder and a bridge deck slab comprises a main bearing girder consisting of two groups of main girders which are symmetrically arranged from front to back, wherein two groups of movable lifting crown blocks are arranged on the main bearing girder, a movable front supporting device, a middle supporting device and a rear supporting device are arranged below the main bearing girder, anti-supporting legs are further arranged between the middle supporting device and the rear supporting device, two groups of anti-supporting legs which are symmetrically arranged on the two groups of main girders from front to back are respectively composed of a first carrier roller wheel box, a first lifting type leg group and a supporting cross beam frame, a first carrier roller wheel box in the anti-supporting legs is in sliding connection with the main girder, an anti-supporting leg walking motor for driving the anti-supporting legs to move left and right along the main girder is arranged in the first carrier roller wheel box, the fixed end of the first lifting type leg group is connected with the lower part of the first carrier roller wheel box, and the lower parts of the lifting ends of the two groups of the first lifting type leg group are connected with the supporting cross beam frame.
The first lifting type supporting leg group comprises two groups of first lifting supporting legs which are symmetrically arranged in the front-back direction, each group of first lifting supporting legs comprises a first inner sleeve and a first outer sleeve sleeved on the outer side of the first inner sleeve, the upper end of the first inner sleeve is connected with the lower part of the first carrier roller wheel box through a connecting flange, and the lower end of the first outer sleeve is connected with the supporting beam frame through a connecting flange; a reverse supporting leg driving oil cylinder is further arranged between the two groups of first lifting supporting legs, the fixed end of the reverse supporting leg driving oil cylinder is connected with the lower portion of the first supporting roller wheel box through a hinged seat, and the telescopic end of the reverse supporting leg driving oil cylinder is detachably connected with the supporting beam frame.
The first inner sleeve and the first outer sleeve are correspondingly provided with a plurality of groups of anti-support leg positioning pin holes along the length direction, and the first inner sleeve and the first outer sleeve in the two groups of first lifting legs are connected through the anti-support leg positioning pin holes by utilizing anti-support leg positioning pins.
The front supporting device comprises a second lifting type supporting leg group and a fixed-length supporting leg group, the second lifting type supporting leg group comprises two second lifting type supporting legs, the upper parts of the two second lifting type supporting legs are connected with an upper cross beam, each second lifting type supporting leg comprises two front supporting rods arranged on two sides of a main beam, a front supporting lifting oil cylinder is arranged between the two front supporting rods in each second lifting type supporting leg, the fixed end of each front supporting lifting oil cylinder is hinged with the upper end of the corresponding main beam through a hinge seat, a first circulating beam is arranged between the two front supporting rods, and the telescopic end of each front supporting lifting oil cylinder is hinged with the first circulating beam; each front support rod is correspondingly provided with a plurality of groups of positioning pin holes along the length direction, two ends of the first circulating beam are provided with circulating beam pin holes, and the first circulating beam is connected with the two front support rods on two sides through the circulating beam pin holes and the positioning pin holes by utilizing circulating beam positioning pins; the lower end of the front supporting rod is connected with the lower cross beam through a connecting flange, the fixed-length supporting leg group comprises two fixed-length supporting legs, and the two fixed-length supporting legs are arranged at the front part and the rear part of the lower cross beam through the connecting flange respectively.
The fixed length landing leg go up landing leg and fixed length landing leg down including the articulated fixed length that sets up, the articulated end of landing leg and fixed length landing leg down is articulated through the pivot on the fixed length, the expansion end of landing leg and fixed length landing leg down is provided with the locking bolt on the fixed length.
The middle supporting device comprises two groups of middle supporting legs which are symmetrically arranged on the two groups of main beams in a front-back mode, and each group of middle supporting legs consists of a second carrier roller wheel box, a third lifting type supporting leg group and a lower connecting beam; the second roller wheel box is connected with the main beam in a sliding mode, a middle supporting leg walking motor for driving the second roller wheel box to move left and right along the main beam is arranged in the second roller wheel box, the fixed end of a third lifting type supporting leg group is connected with the lower portion of the second roller wheel box, and the lower portions of the lifting ends of the two groups of third lifting type supporting leg groups are connected with the lower connecting beam.
The third lifting supporting leg group consists of four groups of third lifting supporting legs which are symmetrically arranged, each group of third lifting supporting legs comprises a second inner sleeve and a second outer sleeve sleeved on the outer side of the second inner sleeve, the upper end of the second inner sleeve is connected with the lower part of the second carrier roller wheel box through a connecting flange, and the lower end of the second outer sleeve is connected with the lower connecting beam through a connecting flange; a middle supporting lifting oil cylinder is further arranged between the two groups of third lifting supporting legs arranged in the front-back direction, the fixed end of the middle supporting lifting oil cylinder is connected with the lower part of the second carrier roller wheel box through a hinge seat, and the telescopic end of the middle supporting lifting oil cylinder is detachably connected with the lower connecting beam; the second inner sleeve and the second outer sleeve are correspondingly provided with a plurality of groups of middle supporting device positioning pin holes along the length direction, and the second inner sleeve and the second outer sleeve in the two groups of third lifting supporting legs which are arranged in the front and back are connected through the middle supporting device positioning pin holes by utilizing the same middle supporting device positioning pin.
The front part and the rear part of the lower end of the lower connecting beam are both connected with a middle support leg transverse moving wheel box, a transverse moving wheel and a transverse moving motor are arranged in the middle support leg transverse moving wheel box, a transverse moving rail matched with the transverse moving wheel is arranged at the lower end of the transverse moving wheel, and the transverse moving motor drives the transverse moving wheel to drive the support device to move left and right along the transverse moving rail in a rotating mode.
The rear supporting device comprises a fourth lifting type supporting leg group, the fourth lifting type supporting leg group comprises two fourth lifting type supporting legs, each fourth lifting type supporting leg comprises two rear supporting rods arranged on two sides of the main beam, a rear supporting lifting oil cylinder is arranged between the two rear supporting rods in each fourth lifting type supporting leg, the fixed end of each rear supporting lifting oil cylinder is hinged with the upper end of the corresponding main beam through a hinge base, and the telescopic end of each rear supporting lifting oil cylinder is hinged with a second circulating beam positioned between the two rear supporting rods; each rear support rod is correspondingly provided with a plurality of groups of positioning pin holes along the length direction, two ends of the second circulating beam are provided with circulating beam pin holes, and the second circulating beam is connected with the two rear support rods on two sides through the circulating beam pin holes and the positioning pin holes by utilizing circulating beam positioning pins; the lower end of each rear supporting rod is connected with a supporting base.
The lifting crown block comprises a transverse trolley, a transverse wheel group, a transverse track beam, a longitudinal wheel group, a movable pulley group and a lifting appliance; the lower part of the transverse moving trolley is provided with a transverse moving wheel set which drives the transverse moving trolley to move back and forth along the transverse moving track beam; the lower parts of the left end and the right end of the transverse moving track beam are provided with longitudinal moving wheel sets, and the longitudinal moving wheel sets drive the transverse moving track beam to move left and right along the two main beams; driving motors are arranged in the transverse moving wheel set and the longitudinal moving wheel set; the lifting crown block is connected with a lifting appliance through a movable pulley block and a steel wire rope.
The utility model adds the anti-support leg between the middle support device and the rear support device, when the bridge erecting machine moves and operates via holes, on the basis of the matching of the prior front support device, the middle support device and the rear support device, the anti-support leg is utilized to provide auxiliary support for the bridge erecting machine by adjusting the position of the anti-support leg, so as to prevent the bridge erecting machine from overturning accidents; the self weight of the anti-support supporting leg can play a role of a balance weight so as to realize self-balance via hole of the bridge girder erection machine in a matching way. The anti-support supporting legs can also play a role in lifting the supporting legs in the transportation process of the steel plate girder and the bridge deck. The utility model discloses in, preceding strutting arrangement, well strutting arrangement, anti-landing leg and back strutting arrangement of holding in the palm, its landing leg part all adopts oil cylinder drive's over-and-under type landing leg, can adapt to different job site requirements, improves the utility model discloses a practicality and commonality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of portion B of FIG. 1;
FIG. 4 is an enlarged schematic view of the portion C in FIG. 1;
FIG. 5 is an enlarged schematic view of a portion D of FIG. 1;
fig. 6 is a schematic structural view of a reverse supporting leg of the present invention;
fig. 7 is a schematic structural view of a front support device in the present invention;
fig. 8 is a schematic structural view of a middle support device according to the present invention;
fig. 9 is a schematic structural view of the rear support device of the present invention;
fig. 10 is a schematic structural diagram of a hoisting overhead travelling crane in the present invention.
Detailed Description
The invention is described in detail below with reference to the following figures and examples:
as shown in fig. 1 to 10, a bridge girder erection machine suitable for synchronous erection construction of steel plate girder or bridge deck 4, include the main spandrel girder 2 that comprises two sets of girders 1 that the symmetry set up around by, two sets of girders 1 all adopt the triangular truss. Two groups of movable hoisting crown blocks 3 are arranged on the main bearing beam 2 and used for hoisting and moving a steel plate beam or a bridge deck 4, a movable front supporting device 5, a middle supporting device 6 and a rear supporting device 7 are arranged below the main bearing beam 2, the front supporting device 5, the middle supporting device 6 and the rear supporting device 7 are used for supporting the main bearing beam 2 and the hoisted steel plate beam or the bridge deck 4, and the movement and the hole passing are completed under the mutual matching, so that the steel plate beam or the bridge deck 4 is erected on the bridge pier 8. The above structure is conventional in the art and will not be described herein.
The utility model discloses in, still be provided with between well strutting arrangement 6 and the back strutting arrangement 7 and prevent holding in the palm landing leg 9, when the bridge crane moved and the via hole operation according to the cooperation of preceding strutting arrangement 5, well strutting arrangement 6 and back strutting arrangement 7, prevent that support landing leg 9 can provide the auxiliary stay to prevent that the bridge crane from taking place the accident of toppling, prevent simultaneously that support landing leg 9 is anti-can also play the counter weight effect when the bridge crane removes and the via hole, in order to realize the self-balancing via hole. The anti-support legs 9 can also play a role in lifting the legs in the transportation process of the steel plate girder or the bridge deck 4.
The utility model discloses in, the symmetry sets up two sets of anti-landing leg 9 that hold in the palm on two sets of girders 1 around and comprises first bearing roller wheel case 10, first over-and-under type landing leg group 11 and supporting beam frame 12. First bearing roller wheel case 10 and girder 1 sliding connection in the landing leg 9 are held in the palm to anti, and be provided with the anti landing leg walking motor that holds in the palm of driving anti landing leg 9 along girder 1 side-to-side motion in the first bearing roller wheel case 10, and bearing roller wheel case 10 belongs to jack-up field prior art, no longer gives details here. The first carrier roller wheel box 10 realizes the movement of the anti-supporting leg 9 on the main beam 1 through the anti-supporting leg walking motor. The fixed end of the first lifting type supporting leg group 11 is connected with the lower part of the first roller wheel box 10, and the lower parts of the lifting ends of the two first lifting type supporting leg groups 11 are connected with a supporting beam frame 12. The support beam frame 12 can effectively prevent the first elevating leg group 11 from damaging the bridge deck 13.
In the utility model, the first lifting support leg group 11 comprises two groups of first lifting support legs which are symmetrically arranged front and back, each group of first lifting support legs comprises a first inner sleeve 11-1 and a first outer sleeve 11-2 which is sleeved outside the first inner sleeve 11-1, the upper end of the first inner sleeve 11-1 is connected with the lower part of the first carrier roller wheel box 10 through a connecting flange, and the lower end of the first outer sleeve 11-2 is connected with the supporting beam frame 12 through a connecting flange; a reverse supporting leg driving oil cylinder 14 is further arranged between the two groups of first lifting supporting legs, the fixed end of the reverse supporting leg driving oil cylinder 14 is connected with the lower portion of the first carrier roller wheel box 10 through a hinge seat 15, and the telescopic end of the reverse supporting leg driving oil cylinder 14 is detachably connected with the supporting beam frame 12. The overall length of the first lifting leg can be adjusted by controlling the movement of the telescopic end of the anti-support leg driving oil cylinder 14, and the height adjusting function of the anti-support leg 9 is realized. The first inner sleeve 11-1 and the first outer sleeve 11-2 are correspondingly provided with a plurality of groups of anti-support leg positioning pin holes 16 along the length direction, after the height of the first lifting leg is adjusted to a set height, the first inner sleeve 11-1 and the first outer sleeve 11-2 in the two groups of first lifting legs are connected through the same anti-support leg positioning pin holes 16 by using the same anti-support leg positioning pin 17, so that the relative positions of the first inner sleeve 11-1 and the first outer sleeve 11-2 in each group of first lifting legs can be ensured to be stable, the two groups of first lifting legs can be connected to form a whole, and the stability of the first lifting leg group 11 is improved.
The front supporting device 5 comprises a second lifting type supporting leg set 18 and a fixed-length supporting leg set 19, the second lifting type supporting leg set 18 comprises two second lifting type supporting legs, and the upper portions of the two second lifting type supporting legs are connected with an upper cross beam 20 so as to enhance the stability of the two second lifting type supporting legs. Each second lifting type supporting leg comprises two front supporting rods 21 arranged on two sides of the main beam 1, a front supporting lifting oil cylinder 22 is arranged between the two front supporting rods 21 in each second lifting type supporting leg, the fixed end of each front supporting lifting oil cylinder 22 is hinged to the upper end of the corresponding main beam 1 through a hinged seat, and the telescopic end of each front supporting lifting oil cylinder 22 is detachably connected with the two front supporting rods 21. By controlling the movement of the telescopic end of the front support lift cylinder 22, the height of the main beam 1 can be adjusted by using the two front support rods 21 as fulcrums. The lower end of the front support rod 21 is connected with the lower cross beam 23 through a connecting flange, the fixed-length leg set 19 comprises two fixed-length legs 24, and the two fixed-length legs 24 are arranged at the front and the rear of the lower cross beam 23 through the connecting flange respectively. The bottom end rail 23 can enhance the stability of the two second lifting legs and also can serve to connect the two fixed length legs 24.
In this embodiment, a first circulating beam 25 is arranged between the two front support rods 21, and the telescopic end of the front support lifting cylinder 22 is hinged with the first circulating beam 25; each front support rod 21 is correspondingly provided with a plurality of groups of positioning pin holes 26 along the length direction, two ends of the first circulating beam 25 are provided with circulating beam pin holes, and the first circulating beam 25 is connected with the two front support rods 21 on two sides through the circulating beam pin holes and the positioning pin holes 26 by utilizing circulating beam positioning pins. Through the position height of adjustment circulation roof beam between two anterior bracing pieces 21, strutting arrangement 5's altitude mixture control scope before can expanding to adapt to different job site requirements, improve the utility model discloses a practicality.
The utility model discloses in, the convenience when taking into account bridge girder erection machine and accomodating and transporting, landing leg 24-1 and landing leg 24-2 under the fixed length on the fixed length that fixed length landing leg 24 includes articulated setting, and landing leg 24-1 and landing leg 24-2's hinged end is articulated through pivot 27 under the fixed length goes up landing leg 24-1 and the fixed length, and the expansion end of landing leg 24-2 is provided with locking bolt under the fixed length goes up landing leg 24-1 and the fixed length. When the front support device is stored and transported, the lower support legs 24-2 with fixed lengths are rotated through the rotating shafts to be in a horizontal state, so that the height of the front support device 5 can be effectively reduced, and the occupied space during storage and transportation is reduced. In the working state, the fixed-length upper supporting leg 24-1 and the fixed-length lower supporting leg 24-2 are in a coaxial state through the rotating shaft 27, and position locking is carried out through the locking bolt, so that the stability in the working state can be ensured.
In the utility model, the middle supporting device 6 comprises two groups of middle supporting legs which are symmetrically arranged on the two groups of main beams 1 from front to back, and each group of middle supporting legs consists of a second carrier roller wheel box 28, a third lifting type supporting leg group and a lower connecting beam 29; the second roller wheel box 28 is connected with the main beam 1 in a sliding manner, and a middle support leg walking motor for driving the second roller wheel box 28 to move left and right along the main beam 1 is arranged in the second roller wheel box 28. The second roller wheel box 28 realizes the movement of the middle supporting device 6 on the main beam 1 through a middle supporting leg walking motor. The fixed end of the third lifting type supporting leg group is connected with the lower part of the second carrier roller wheel box 28, and the lower parts of the lifting ends of the two groups of third lifting type supporting leg groups are connected with the lower connecting beam 29.
In this embodiment, the third lifting leg group is composed of four groups of third lifting legs 30 which are symmetrically arranged, the four groups of third lifting legs 30 are symmetrically arranged in a rectangular shape, each group of third lifting legs 30 comprises a second inner sleeve 30-1 and a second outer sleeve 30-2 which is sleeved outside the second inner sleeve 30-1, the upper end of the second inner sleeve 30-1 is connected with the lower portion of the second carrier roller wheel box 28 through a connecting flange, and the lower end of the second outer sleeve 30-2 is connected with the lower connecting beam 29 through a connecting flange. A middle supporting lifting oil cylinder 31 is further arranged between the two groups of third lifting supporting legs 30 which are arranged in the front-back direction, the fixed end of the middle supporting lifting oil cylinder 31 is connected with the lower portion of the second carrier roller wheel box 28 through a hinged seat, and the telescopic end of the middle supporting lifting oil cylinder 31 is detachably connected with the lower connecting beam 29. The overall length of the third lifting leg 30 can be adjusted by controlling the movement of the telescopic end of the middle supporting lifting cylinder 31, so that the height adjusting function of the middle supporting device 6 is realized. The second inner sleeve 30-1 and the second outer sleeve 30-2 are correspondingly provided with a plurality of groups of middle supporting device positioning pin holes along the length direction, after the height of the third lifting support legs 30 is adjusted to a set height, the second inner sleeve 30-1 and the second outer sleeve 30-2 in two groups of the third lifting support legs 30 which are arranged in front and back are connected through the middle supporting device positioning pin holes by using the same middle supporting device positioning pin 32, so that the relative position of each second inner sleeve 30-1 and the second outer sleeve 30-2 can be ensured to be stable, two groups of the third lifting support legs 30 which are arranged in front and back can be connected to form a whole, the stability of the third lifting support leg group is improved, and the connection reliability of the second carrier roller wheel box 28 and the lower connecting beam 29 is ensured.
The front part and the rear part of the lower end of the lower connecting beam 29 are both connected with a middle support leg transverse wheel box 33, a transverse wheel and a transverse motor 35 are arranged in the middle support leg transverse wheel box 33, a transverse track 34 matched with the lower end of the transverse wheel is arranged at the lower end of the transverse wheel, and the transverse motor 35 drives the transverse wheel to rotate to drive the support device 6 to slightly move left and right along the transverse track so as to realize the small-range adjustment effect.
The utility model discloses in, back strutting arrangement 7 includes fourth over-and-under type landing leg group, fourth over-and-under type landing leg group includes two fourth over-and-under type landing legs, every fourth over-and-under type landing leg is all including setting up two rear portion bracing pieces 36 in 1 both sides of girder, all be provided with back support lift cylinder 37 between two rear portion bracing pieces 36 in every fourth over-and-under type landing leg, it is articulated through articulated seat that the stiff end of back support lift cylinder 37 is passed through with 1 upper end of girder that corresponds, back support lift cylinder 37's flexible end and the second circulation roof beam 38 that is located between two rear portion bracing pieces 36 are articulated. By controlling the movement of the telescopic end of the rear support lift cylinder 37, the height of the main beam 1 can be adjusted using the two rear support bars 36 as fulcrums. All correspond along length direction on every rear portion bracing piece 36 and be provided with a plurality of groups location pinhole, the both ends of second circulation roof beam 38 are provided with the circulation roof beam pinhole, and second circulation roof beam 38 and two rear portion bracing pieces 36 of both sides utilize circulation roof beam locating pin through circulation roof beam pinhole and location pinhole to be connected, through adjusting the position height of circulation roof beam between two rear portion bracing pieces 36, can enlarge strutting arrangement 7's height control scope behind to adapt to different job site requirements, improve the utility model discloses a practicality. The lower end of each rear support rod 36 is connected with a support base 39 to prevent the rear support rod 36 from damaging the deck.
In the utility model, the lifting crown block 3 comprises a traversing trolley 40, a traversing wheel group 42, a traversing track beam 41, a longitudinal moving wheel group 43, a movable pulley group 44 and a lifting appliance 45; the lower part of the traverse trolley 40 is provided with a traverse wheel group 42, and the traverse wheel group 42 drives the traverse trolley 40 to move back and forth along the traverse rail beam 41; the lower parts of the left end and the right end of the transverse moving track beam 41 are respectively provided with a longitudinal moving wheel set 43, and the longitudinal moving wheel sets 43 drive the transverse moving track beam 41 to move left and right along the two main beams 1; driving motors are arranged in the transverse moving wheel set 42 and the longitudinal moving wheel set 43; the hoisting crown block 3 is connected with a lifting appliance 45 through a movable pulley block 44 and a steel wire rope. The hanger 45 is provided with a connecting structure for hoisting the steel plate beam or the bridge deck 4. The above-mentioned techniques are conventional in the art and will not be described herein.
When the bridge girder erection machine is moved and the hole passing operation is carried out, on the basis that the existing front supporting device 5, the middle supporting device 6 and the rear supporting device 7 are matched (the conventional technology in the field is not repeated), the auxiliary support is provided for the bridge girder erection machine by adjusting the position of the reverse supporting leg 9 so as to prevent the bridge girder erection machine from generating overturn accidents; the self weight of the anti-support leg 9 can play a role of a balance weight so as to realize self-balance via hole of the bridge girder erection machine.
The utility model discloses in, preceding strutting arrangement 5, well strutting arrangement 6, anti-landing leg 9 and back strutting arrangement 7 of holding in the palm, its landing leg part all adopts oil cylinder drive's over-and-under type landing leg, can adapt to different job site requirements, carries out the successive circulation of steel sheet roof beam and decking and erects on the pier, improves the utility model discloses a practicality and commonality.
Claims (10)
1. The utility model provides a bridge girder erection machine suitable for construction is erect in step to steel sheet roof beam and decking, includes the main spandrel girder that two sets of girders that set up by the front and back symmetry constitute, is provided with two sets of portable lifting overhead traveling cranes on the main spandrel girder, and the below of main spandrel girder is provided with mobilizable preceding strutting arrangement, well strutting arrangement and back strutting arrangement, its characterized in that: still be provided with between well strutting arrangement and the back strutting arrangement and anti-hold in the palm the landing leg, the symmetry sets up two sets of anti-landing legs that hold in the palm on two sets of girders by first bearing roller wheel case around, first over-and-under type landing leg group and supporting beam frame constitute, first bearing roller wheel case and girder sliding connection in the anti-landing leg that holds in the palm, and be provided with the anti-landing leg walking motor that holds in the palm of driving anti-landing leg along girder side-to-side movement in the first bearing roller wheel case, the stiff end of first over-and-under type landing leg group and the sub-unit connection of first bearing roller wheel case, the lift end sub-unit connection of two sets of first over-and-under type landing leg groups has supporting beam frame.
2. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck as claimed in claim 1, wherein: the first lifting supporting leg group comprises two groups of first lifting supporting legs which are symmetrically arranged in front and back, each group of first lifting supporting legs comprises a first inner sleeve and a first outer sleeve sleeved outside the first inner sleeve, the upper end of the first inner sleeve is connected with the lower part of the first carrier roller wheel box through a connecting flange, and the lower end of the first outer sleeve is connected with the supporting beam frame through a connecting flange; a reverse supporting leg driving oil cylinder is further arranged between the two groups of first lifting supporting legs, the fixed end of the reverse supporting leg driving oil cylinder is connected with the lower portion of the first supporting roller wheel box through a hinged seat, and the telescopic end of the reverse supporting leg driving oil cylinder is detachably connected with the supporting beam frame.
3. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck as claimed in claim 2, wherein: the first inner sleeve and the first outer sleeve are correspondingly provided with a plurality of groups of anti-support leg positioning pin holes along the length direction, and the first inner sleeve and the first outer sleeve in the two groups of first lifting legs are connected through the anti-support leg positioning pin holes by utilizing anti-support leg positioning pins.
4. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck slab as claimed in claim 1, wherein: the front supporting device comprises a second lifting type supporting leg group and a fixed-length supporting leg group, the second lifting type supporting leg group comprises two second lifting type supporting legs, the upper parts of the two second lifting type supporting legs are connected with an upper cross beam, each second lifting type supporting leg comprises two front supporting rods arranged on two sides of a main beam, a front supporting lifting oil cylinder is arranged between the two front supporting rods in each second lifting type supporting leg, the fixed end of each front supporting lifting oil cylinder is hinged with the upper end of the corresponding main beam through a hinge seat, a first circulating beam is arranged between the two front supporting rods, and the telescopic end of each front supporting lifting oil cylinder is hinged with the first circulating beam; each front support rod is correspondingly provided with a plurality of groups of positioning pin holes along the length direction, two ends of the first circulating beam are provided with circulating beam pin holes, and the first circulating beam is connected with the two front support rods on two sides through the circulating beam pin holes and the positioning pin holes by utilizing circulating beam positioning pins; the lower end of the front supporting rod is connected with the lower cross beam through a connecting flange, the fixed-length supporting leg group comprises two fixed-length supporting legs, and the two fixed-length supporting legs are arranged at the front part and the rear part of the lower cross beam through the connecting flange respectively.
5. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck slab as claimed in claim 4, wherein: the fixed length landing leg go up landing leg and fixed length landing leg down including the articulated fixed length that sets up, the articulated end of landing leg and fixed length landing leg down is articulated through the pivot on the fixed length, the expansion end of landing leg and fixed length landing leg down is provided with the locking bolt on the fixed length.
6. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck as claimed in claim 1, wherein: the middle supporting device comprises two groups of middle supporting legs which are symmetrically arranged on the two groups of main beams in a front-back mode, and each group of middle supporting legs consists of a second carrier roller wheel box, a third lifting type supporting leg group and a lower connecting beam; the second roller wheel box is connected with the main beam in a sliding mode, a middle supporting leg walking motor for driving the second roller wheel box to move left and right along the main beam is arranged in the second roller wheel box, the fixed end of a third lifting type supporting leg group is connected with the lower portion of the second roller wheel box, and the lower portions of the lifting ends of the two groups of third lifting type supporting leg groups are connected with the lower connecting beam.
7. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck as claimed in claim 6, wherein: the third lifting supporting leg group consists of four groups of third lifting supporting legs which are symmetrically arranged, each group of third lifting supporting legs comprises a second inner sleeve and a second outer sleeve sleeved outside the second inner sleeve, the upper end of the second inner sleeve is connected with the lower part of the second carrier roller wheel box through a connecting flange, and the lower end of the second outer sleeve is connected with the lower connecting beam through a connecting flange; a middle supporting lifting oil cylinder is further arranged between the two groups of third lifting supporting legs which are arranged in the front-back mode, the fixed end of the middle supporting lifting oil cylinder is connected with the lower portion of the second carrier roller wheel box through a hinge base, and the telescopic end of the middle supporting lifting oil cylinder is detachably connected with the lower connecting beam; the second inner sleeve and the second outer sleeve are correspondingly provided with a plurality of groups of middle supporting device positioning pin holes along the length direction, and the second inner sleeve and the second outer sleeve in the front and back two groups of third lifting supporting legs are connected through the middle supporting device positioning pin holes by utilizing the same middle supporting device positioning pin.
8. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck slab as claimed in claim 6, wherein: the front part and the rear part of the lower end of the lower connecting beam are both connected with a middle support leg transverse moving wheel box, a transverse moving wheel and a transverse moving motor are arranged in the middle support leg transverse moving wheel box, a transverse moving rail matched with the transverse moving wheel is arranged at the lower end of the transverse moving wheel, and the transverse moving motor drives the transverse moving wheel to rotate to drive the support device to move left and right along the transverse moving rail.
9. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck slab as claimed in claim 1, wherein: the rear supporting device comprises a fourth lifting type supporting leg group, the fourth lifting type supporting leg group comprises two fourth lifting type supporting legs, each fourth lifting type supporting leg comprises two rear supporting rods arranged on two sides of the main beam, a rear supporting lifting oil cylinder is arranged between the two rear supporting rods in each fourth lifting type supporting leg, the fixed end of each rear supporting lifting oil cylinder is hinged with the upper end of the corresponding main beam through a hinge seat, and the telescopic end of each rear supporting lifting oil cylinder is hinged with a second circulating beam positioned between the two rear supporting rods; each rear support rod is correspondingly provided with a plurality of groups of positioning pin holes along the length direction, two ends of the second circulating beam are provided with circulating beam pin holes, and the second circulating beam is connected with the two rear support rods on two sides through the circulating beam pin holes and the positioning pin holes by utilizing circulating beam positioning pins; the lower end of each rear supporting rod is connected with a supporting base.
10. The bridge girder erection machine suitable for the synchronous erection construction of the steel plate girder and the bridge deck as claimed in claim 1, wherein: the lifting crown block comprises a transverse trolley, a transverse wheel group, a transverse track beam, a longitudinal wheel group, a movable pulley group and a lifting appliance; the lower part of the transverse moving trolley is provided with a transverse moving wheel set which drives the transverse moving trolley to move back and forth along the transverse moving track beam; the lower parts of the left end and the right end of the transverse moving track beam are provided with longitudinal moving wheel sets, and the longitudinal moving wheel sets drive the transverse moving track beam to move left and right along the two main beams; driving motors are arranged in the transverse moving wheel set and the longitudinal moving wheel set; the lifting crown block is connected with a lifting appliance through a movable pulley block and a steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222180122.6U CN217781774U (en) | 2022-08-18 | 2022-08-18 | Bridge girder erection machine suitable for synchronous erection construction of steel plate girder and bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222180122.6U CN217781774U (en) | 2022-08-18 | 2022-08-18 | Bridge girder erection machine suitable for synchronous erection construction of steel plate girder and bridge deck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217781774U true CN217781774U (en) | 2022-11-11 |
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ID=83906068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222180122.6U Active CN217781774U (en) | 2022-08-18 | 2022-08-18 | Bridge girder erection machine suitable for synchronous erection construction of steel plate girder and bridge deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217781774U (en) |
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2022
- 2022-08-18 CN CN202222180122.6U patent/CN217781774U/en active Active
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