CN110886240A - Super-wide bridge erecting machine - Google Patents

Abstract

An ultra-wide bridge girder erection machine belongs to the technical field of bridge girder erection machines; after the first hanging beam carrying pole inclines when the beam is erected, the carrying pole hydraulic system controls the balance hydraulic cylinder to adjust, and the inclination of the first hanging beam carrying pole can be adjusted through the expansion and contraction of the balance hydraulic cylinder, so that the effect of stably hoisting the beam plate is realized; the auxiliary hoisting device and the auxiliary hoisting winch can hoist other small-weight objects, so that the practicability of the bridge girder erection machine is improved; the support leg supporting cross beam connects and fixes the front adjusting support leg of the first front support leg assembly and the front adjusting support leg of the second front support leg assembly, so that the front adjusting support leg of the first front support leg assembly and the front adjusting support leg of the second front support leg assembly can achieve a mutual stabilizing effect during working, and the auxiliary support leg is ensured not to fall or tilt after the hydraulic lifting support leg of the front cross beam rises; the mutual matching lifting between the front cross beam hydraulic lifting support leg of the first front support leg assembly and the front cross beam hydraulic lifting support leg of the second front support leg assembly realizes the erection of the ultra-wide beam plate.

Description

Super-wide bridge erecting machine

Technical Field

The invention belongs to the technical field of bridge girder erection machine equipment, and particularly relates to an ultra-wide bridge girder erection machine.

Background

With the demand of economic construction in China, the rapid development of roads, bridges and highways in China and more bridge construction, bridge erecting machines serving as large special equipment in construction become indispensable key equipment in the construction of highways and bridges. In the process of bridge erection, there is an ultra-wide beam slab that current bridging machine can't erect, and its beam slab width is 10.8 meters, as shown in fig. 10, this ultra-wide beam slab's structure includes left crossbeam, well crossbeam and right crossbeam, left crossbeam, well crossbeam and right crossbeam are parallel arrangement, are equipped with a plurality of longerons between left crossbeam, well crossbeam and right crossbeam, and the longeron is with reciprocal anchorage between left crossbeam, well crossbeam and the right crossbeam, and the beam slab that current bridging machine can't accomplish above-mentioned structure erects.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides an ultra-wide bridge girder erection machine.

The technical problem of the invention is mainly solved by the following technical scheme: an ultra-wide bridge girder erection machine comprises a left main girder, a right main girder, a tail landing leg assembly, a middle landing leg assembly, a first front landing leg assembly and a second front landing leg assembly, wherein an upper cross beam is arranged on the upper side between the front end and the rear end of the left main girder and the right main girder, a truss track is arranged on the upper sides of the left main girder and the right main girder, a second longitudinal truss is arranged on the upper sides of the left main girder and the right main girder, a first longitudinal truss is arranged on the upper sides of the left main girder and the right main girder, the first longitudinal truss comprises a left truss girder and a right truss, connecting girders are arranged on the front end and the rear end between the left truss girder and the right truss girder, a truss driving assembly is arranged on the truss track, limiting seats are arranged on the upper sides of the front end and the rear end of the left truss girder and the right truss girder, and trolley tracks are arranged on the upper sides of the left truss girder and the right truss girder, a hoisting trolley is arranged above the space between the left truss girder and the right truss girder, a hoisting winch is arranged on the hoisting trolley, the hoisting trolley is arranged on a trolley track, a hoisting cable is arranged on the hoisting winch, a hoisting beam is arranged below the hoisting trolley, the hoisting beam is connected with the hoisting winch through the hoisting cable, the hoisting cable passes through the space between the left truss girder and the right truss girder, the first longitudinal truss girder and the second longitudinal truss girder have the same structure, a first hoisting beam carrying pole is arranged below the first longitudinal truss girder, a second hoisting beam carrying pole is arranged below the second longitudinal truss girder, hoisting hooks are arranged on the lower sides of the left end and the right end of the first hoisting beam carrying pole, a supporting hoisting beam is arranged on the upper side of the middle part of the first hoisting beam carrying pole, a movable pin is arranged at the connection position of the lower end of the supporting hoisting beam and the first hoisting beam carrying pole, and the supporting hoisting beam is movably connected with the first hoisting beam through the movable pin, the left upper side of the first hanging beam carrying pole is provided with a carrying pole hydraulic system, the right upper side of the first hanging beam carrying pole is provided with a balance hydraulic cylinder, the right side of the upper end part of the support hanging beam is provided with a support hanging beam connecting block, the right upper side of the first hanging beam carrying pole is provided with a carrying pole connecting block, the left end part of the balance hydraulic cylinder is hinged with the support hanging beam connecting block, the right end part of the balance hydraulic cylinder is hinged with the carrying pole connecting block, the carrying pole hydraulic system controls the balance hydraulic cylinder through a hydraulic pipeline, the upper end of the support hanging beam is connected with a lifting beam below a first longitudinal truss car, the first hanging beam carrying pole and a second hanging beam carrying pole have the same structure, the support hanging beam of the second hanging beam carrying pole is connected with a lifting beam below a second longitudinal truss car, the lower side of the right end part of the left main beam is provided with a left temporary supporting leg, and the lower side of the right end part of the right main beam is, the lower ends of the left temporary support leg and the right temporary support leg are respectively provided with a telescopic support leg, the telescopic support legs comprise a support screw, an adjusting nut and a support base, the support screw is arranged at the upper end of the support base, the support base is movably connected with the support screw, the upper end part of the support screw is arranged in the adjusting nut, the outer side of the adjusting nut is provided with a nut positioning ring, the nut positioning ring is movably connected with a nut, the outer side of the nut positioning ring is connected with the lower end of the left temporary support leg, a temporary support leg supporting beam is arranged between the telescopic support leg at the lower end of the left temporary support leg and the telescopic support leg at the lower end of the right temporary support leg, the tail support leg assembly comprises a left tail support leg and a right tail support leg, the left tail support leg is arranged at the lower side of the left end part of the left main beam, the right tail support leg is arranged at the lower, a tail leg supporting beam is arranged between a tail leg hydraulic telescopic foot at the lower end of the left tail leg and a tail leg hydraulic telescopic foot at the lower end of the right tail leg, the middle leg assembly comprises a left middle leg and a right middle leg, the left middle leg is arranged at the right side of the left tail leg, the right middle leg is arranged at the right side of the right tail leg, middle leg hydraulic telescopic feet are arranged at the lower ends of the left middle leg and the right middle leg, a middle cross beam vehicle is arranged at the lower side between the left middle leg and the right middle leg, the upper sides of the two ends of the middle cross beam are connected with the middle leg hydraulic telescopic feet, a middle leg transverse moving track is arranged at the lower side of the middle cross beam vehicle, a plurality of cushion blocks are arranged at the lower side of the middle leg transverse moving track, the first front leg assembly is arranged at the lower side of the right end parts of the left main beam and the right main beam, the first front leg assembly comprises a left front leg and a right front leg, and a front beam is, the upper side of the left end of the front cross beam is connected with the lower end of a left front supporting leg, the upper side of the right end of the front cross beam is connected with the lower end of a right front supporting leg, the left end part and the right end part of the front cross beam are respectively provided with a front cross beam hydraulic lifting supporting leg, the middle part of each front cross beam hydraulic lifting supporting leg penetrates through the upper side and the lower side of the front cross beam, the lower end of each front cross beam hydraulic lifting supporting leg is provided with a front adjusting supporting leg, each front adjusting supporting leg comprises a plurality of auxiliary supporting legs and a traveling wheel assembly, each front adjusting supporting leg comprises a plurality of auxiliary supporting legs, each traveling wheel assembly is arranged at the lower end of each auxiliary supporting leg, the lower side of each traveling wheel assembly is provided with two short transverse moving rails, one side of each short transverse moving rail, each internal resistance stop block is arranged at one side of each short transverse moving rail, each second front supporting leg assembly is arranged at the left of the first, all be equipped with between left tail landing leg, left well landing leg and left front leg and the left girder and between right tail landing leg, right well landing leg and right front leg and the right girder and indulge and move the peg group assembly, the tail end of left girder is equipped with cab assembly.

Preferably, electric travelling wheels are arranged on the lower sides of the left truss car beam and the right truss car beam, auxiliary hoisting winches are arranged on the lower sides of the electric travelling wheels, and the cab assembly controls the tail support leg hydraulic telescopic legs, the middle support leg hydraulic telescopic legs, the cross beam hydraulic lifting support legs, the hoisting trolleys, the hoisting winches, the electric travelling wheels, the auxiliary hoisting winches, the longitudinal moving hanging wheel set assembly, the carrying pole hydraulic system, the truss car driving assembly, the travelling wheel assembly and the middle cross beam car to run.

Preferably, the two ends of the middle cross beam vehicle and the lower side of the front cross beam are provided with a plurality of auxiliary hoisting devices.

Preferably, a supporting leg supporting cross beam is arranged between the front adjusting supporting leg of the first front supporting leg and the front adjusting supporting leg of the second front supporting leg, and a fixing pin is arranged between the supporting leg supporting cross beam and the front adjusting supporting leg.

The beam erecting method of the ultra-wide bridge erecting machine comprises the following steps:

step 1: the first longitudinal truss car and the second longitudinal truss car are moved to the tail ends of the left main beam and the right main beam, the tail support leg hydraulic telescopic foot is adjusted to enable the tail support leg supporting beam to be supported on the erected beam slab, the middle support leg hydraulic telescopic foot is adjusted to enable the middle transverse beam car to support the middle support leg assembly at the front end of the erected beam slab through the middle support leg transverse moving track, the left main beam and the right main beam are moved forwards through the longitudinal moving hanging wheel set assembly, the first front support leg assembly and the second front support leg assembly are moved above the to-be-erected beam cover beam, the short transverse moving track is laid on the upper side of the to-be-erected beam cover beam, the travelling wheel assembly of the first front support leg assembly falls to the short transverse moving track, the left main beam and the right main beam are supported through the front transverse beam hydraulic lifting support leg of the first front support leg assembly, the auxiliary support leg of the first front support leg assembly and the auxiliary support leg of the second front support leg assembly are connected and fixed through the support leg, lifting the front cross beam hydraulic lifting support leg of the second front support leg assembly to separate the front cross beam hydraulic lifting support leg of the second front support leg assembly from the auxiliary support leg of the second front support leg assembly;

step 2: when the front lifting point of the beam plate reaches the position right below the first longitudinal truss vehicle, the front lifting point of the beam plate is anchored on a lifting hook of the first longitudinal truss vehicle, and the beam plate is lifted to a specified height through a lifting winch of the first longitudinal truss vehicle;

and step 3: the first longitudinal truss vehicle and the beam transporting vehicle move forwards synchronously, when the rear lifting point of the beam plate reaches the position under the second longitudinal truss vehicle, the rear lifting point of the beam plate is anchored on a lifting hook of the second longitudinal truss vehicle, and the beam plate is lifted to a specified height through a lifting winch of the second longitudinal truss vehicle;

and 4, step 4: the first longitudinal truss vehicle and the second longitudinal truss vehicle synchronously feed the beam, the beam feeding is stopped when the beam slab is conveyed to a front designated position, and at the moment, the front end of the beam slab reaches the rear part of the second front supporting leg assembly;

and 5: the front lifting point of the beam slab is lowered to a specified height through a hoisting winch of the first longitudinal truss car, and the height of the upper side surface of the front lifting point of the beam slab is lower than the lower end of a front cross beam hydraulic lifting support leg of the second front support leg assembly;

step 6: the first longitudinal truss vehicle and the second longitudinal truss vehicle are operated, the front end of the beam plate is conveyed to the rear of the first front leg assembly, the longitudinal beam on the front side of the beam plate is positioned between the second front leg assembly and the first front leg assembly, the front cross beam hydraulic lifting leg of the second front leg assembly is lowered, the front cross beam hydraulic lifting leg of the second front leg assembly is connected with the auxiliary leg of the second front leg assembly, and after the connection and the support of the front cross beam hydraulic lifting leg of the second front leg assembly and the auxiliary leg of the second front leg assembly are confirmed, the front cross beam hydraulic lifting leg of the first front leg assembly is lifted, so that the front cross beam hydraulic lifting leg of the second front leg assembly is separated from the auxiliary leg of the second front leg assembly;

and 7: the first longitudinal truss vehicle and the second longitudinal truss vehicle are operated, the beam plate is fed forwards, the longitudinal beam on the front side of the beam plate reaches the front of the first front support leg assembly, the front cross beam hydraulic lifting support leg of the first front support leg assembly is lowered, the front cross beam hydraulic lifting support leg of the first front support leg assembly is connected with the auxiliary support leg of the first front support leg assembly, and after the connection and the support of the front cross beam hydraulic lifting support leg of the first front support leg assembly and the auxiliary support leg of the first front support leg assembly are confirmed, the front cross beam hydraulic lifting support leg of the second front support leg assembly is lifted, so that the front cross beam hydraulic lifting support leg of the second front support leg assembly is separated from the auxiliary support leg of the second front support leg assembly;

and 8: and operating the first longitudinal truss vehicle and the second longitudinal truss vehicle, continuously feeding the beam plate forwards to enable the longitudinal beam on the front side of the beam plate to reach the rear part of the first front supporting leg assembly, lowering the rear lifting point of the beam plate to the same height as the front lifting point by using the lifting winch of the second longitudinal truss vehicle, simultaneously putting the beam on the cover beam of the beam to be erected by using the lifting winch of the first longitudinal truss vehicle and the lifting winch of the second longitudinal truss vehicle, loosening the lifting hook, and finishing girder erection.

The invention has the following beneficial effects: the tail support leg support beam and the temporary support leg support beam can improve the stability of the left tail support leg, the right tail support leg, the left temporary support leg and the right temporary support leg; after the first hanging beam carrying pole inclines when the beam is erected, the carrying pole hydraulic system controls the balance hydraulic cylinder to adjust, and the inclination of the first hanging beam carrying pole can be adjusted through the expansion and contraction of the balance hydraulic cylinder, so that the effect of stably hoisting the beam plate is realized; the auxiliary hoisting device and the auxiliary hoisting winch can hoist other small-weight objects, so that the practicability of the bridge girder erection machine is improved; the support leg supporting cross beam connects and fixes the front adjusting support leg of the first front support leg assembly and the front adjusting support leg of the second front support leg assembly, so that the front adjusting support leg of the first front support leg assembly and the front adjusting support leg of the second front support leg assembly can achieve a mutual stabilizing effect during working, and the auxiliary support leg is ensured not to fall or tilt after the hydraulic lifting support leg of the front cross beam rises; the mutual matching lifting between the front cross beam hydraulic lifting support leg of the first front support leg assembly and the front cross beam hydraulic lifting support leg of the second front support leg assembly realizes the erection of the ultra-wide beam plate.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a structure in the direction A of FIG. 1;

FIG. 3 is a schematic view of a structure shown in direction B of FIG. 1;

FIG. 4 is a schematic view of a structure in the direction C of FIG. 1;

FIG. 5 is a schematic illustration of a first front leg assembly of the present invention;

FIG. 6 is a schematic view of a first stringer connected to a first spreader bar according to the present invention;

FIG. 7 is a schematic view of a left stringer truck beam, a right stringer truck beam and a coupling beam according to the present invention;

FIG. 8 is an enlarged view of the portion G of FIG. 5;

FIG. 9 is a schematic view of a structure at an enlarged scale of F in FIG. 1;

fig. 10 is a schematic top view of a conventional ultra-wide beam panel;

FIG. 11 is a schematic view of a state of step 1 in the girder erection method according to the present invention;

FIG. 12 is a schematic view of a state of step 2 of the girder erection method according to the present invention;

FIG. 13 is a schematic view of a state of step 3 of the girder erection method according to the present invention;

FIG. 14 is a schematic view of a state of step 4 in the girder erection method according to the present invention;

FIG. 15 is a schematic view of a state of step 5 of the girder erection method according to the present invention;

FIG. 16 is a schematic view of a state of step 6 of the girder erection method according to the present invention;

FIG. 17 is a schematic view of a state of step 7 of the girder erection method according to the present invention;

fig. 18 is a schematic view of a state of step 8 in the girder erection method according to the present invention.

In the figure: 1. a left cross beam; 2. a middle cross beam; 3. a right cross member; 4. a stringer; 5. a left main beam; 6. a right main beam; 7. a tail leg assembly; 8. a middle leg assembly; 9. a first front leg assembly; 10. a second front leg assembly; 11. an upper cross beam; 12. a truss car track; 13. a second wale truss vehicle; 14. a first wale truss vehicle; 15. a left truss car beam; 16. a right truss car beam; 17. a connecting beam; 18. a truss car drive assembly; 19. a limiting seat; 20. a trolley track; 21. a trolley; 22. hoisting a winch; 23. hoisting a cable; 24. lifting the lifting beam; 25. a first lifting beam carrying pole; 26. a second lifting beam carrying pole; 27. lifting the hook; 28. supporting the hanging beam; 29. a movable pin; 30. a shoulder pole hydraulic system; 31. a balance hydraulic cylinder; 32. a supporting hanging beam connecting block; 33. a shoulder pole connecting block; 34. a left temporary leg; 35. a right temporary leg; 36. a telescopic supporting leg; 37. a support screw; 38. adjusting the nut; 39. a support base; 40. a nut positioning ring; 41. a temporary leg support beam; 42. a left tail leg; 43. a right tail leg; 44. a tail support leg hydraulic telescopic foot; 45. a tail leg support beam; 46. a left middle leg; 47. a right middle leg; 48. the middle support leg is a hydraulic telescopic leg; 49. a middle cross beam vehicle; 50. the middle support leg transversely moves the track; 501. cushion blocks; 51. a left front leg; 52. a right front leg; 53. a front cross beam; 54. a front cross beam hydraulic lifting support leg; 55. a front adjusting leg; 56. a secondary leg; 57. a traveling wheel assembly; 58. a short traverse rail; 59. an internal resistance block; 60. longitudinally moving a hanging wheel set assembly; 61. a cab assembly; 62. electric walking wheels; 63. auxiliary hoisting winch; 64. an auxiliary hoisting device; 65. the supporting legs support the cross beam; 66. a fixing pin; 67. erecting a beam plate; 68. a beam to be erected is covered; 69. and (4) carrying the beam vehicle.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): an ultra-wide bridge girder erection machine comprises a left main girder, a right main girder, a tail leg assembly, a middle leg assembly, a first front leg assembly and a second front leg assembly, wherein an upper cross beam is arranged on the upper side between the front end and the rear end of the left main girder and the right main girder, truss tracks are arranged on the upper sides of the left main girder and the right main girder, a second longitudinal truss is arranged on the upper sides of the rear ends of the left main girder and the right main girder, a first longitudinal truss is arranged on the upper sides of the front ends of the left main girder and the right main girder, the first longitudinal truss comprises a left truss girder and a right truss girder, connecting beams are arranged on the front ends and the rear ends between the left truss girder and the right truss girder, truss driving assemblies are arranged on the lower sides of the connecting beams, limiting seats are arranged on the upper sides of the front ends and the rear ends of the left truss girder and the right truss girder, and trolley tracks are arranged on the upper sides of the left truss girder and the right truss girder, a hoisting trolley is arranged above the space between the left truss girder and the right truss girder, a hoisting winch is arranged on the hoisting trolley, the hoisting trolley is arranged on a trolley track, a hoisting cable is arranged on the hoisting winch, a hoisting beam is arranged below the hoisting trolley, the hoisting beam is connected with the hoisting winch through the hoisting cable, the hoisting cable passes through the space between the left truss girder and the right truss girder, the first longitudinal truss girder and the second longitudinal truss girder have the same structure, a first hoisting beam carrying pole is arranged below the first longitudinal truss girder, a second hoisting beam carrying pole is arranged below the second longitudinal truss girder, hoisting hooks are arranged on the lower sides of the left end and the right end of the first hoisting beam carrying pole, a supporting hoisting beam is arranged on the upper side of the middle part of the first hoisting beam carrying pole, a movable pin is arranged at the connection position of the lower end of the supporting hoisting beam and the first hoisting beam carrying pole, and the supporting hoisting beam is movably connected with the first hoisting beam through the movable pin, the left upper side of the first hanging beam carrying pole is provided with a carrying pole hydraulic system, the right upper side of the first hanging beam carrying pole is provided with a balance hydraulic cylinder, the right side of the upper end part of the support hanging beam is provided with a support hanging beam connecting block, the right upper side of the first hanging beam carrying pole is provided with a carrying pole connecting block, the left end part of the balance hydraulic cylinder is hinged with the support hanging beam connecting block, the right end part of the balance hydraulic cylinder is hinged with the carrying pole connecting block, the carrying pole hydraulic system controls the balance hydraulic cylinder through a hydraulic pipeline, the upper end of the support hanging beam is connected with a lifting beam below a first longitudinal truss car, the first hanging beam carrying pole and a second hanging beam carrying pole have the same structure, the support hanging beam of the second hanging beam carrying pole is connected with a lifting beam below a second longitudinal truss car, the lower side of the right end part of the left main beam is provided with a left temporary supporting leg, and the lower side of the right end part of the right main beam is, the lower ends of the left temporary support leg and the right temporary support leg are respectively provided with a telescopic support leg, the telescopic support legs comprise a support screw, an adjusting nut and a support base, the support screw is arranged at the upper end of the support base, the support base is movably connected with the support screw, the upper end part of the support screw is arranged in the adjusting nut, the outer side of the adjusting nut is provided with a nut positioning ring, the nut positioning ring is movably connected with a nut, the outer side of the nut positioning ring is connected with the lower end of the left temporary support leg, a temporary support leg supporting beam is arranged between the telescopic support leg at the lower end of the left temporary support leg and the telescopic support leg at the lower end of the right temporary support leg, the tail support leg assembly comprises a left tail support leg and a right tail support leg, the left tail support leg is arranged at the lower side of the left end part of the left main beam, the right tail support leg is arranged at the lower, a tail leg supporting beam is arranged between a tail leg hydraulic telescopic foot at the lower end of the left tail leg and a tail leg hydraulic telescopic foot at the lower end of the right tail leg, the middle leg assembly comprises a left middle leg and a right middle leg, the left middle leg is arranged at the right side of the left tail leg, the right middle leg is arranged at the right side of the right tail leg, middle leg hydraulic telescopic feet are arranged at the lower ends of the left middle leg and the right middle leg, a middle cross beam vehicle is arranged at the lower side between the left middle leg and the right middle leg, the upper sides of the two ends of the middle cross beam are connected with the middle leg hydraulic telescopic feet, a middle leg transverse moving track is arranged at the lower side of the middle cross beam vehicle, a plurality of cushion blocks are arranged at the lower side of the middle leg transverse moving track, the first front leg assembly is arranged at the lower side of the right end parts of the left main beam and the right main beam, the first front leg assembly comprises a left front leg and a right front leg, and a front beam is, the upper side of the left end of the front cross beam is connected with the lower end of a left front supporting leg, the upper side of the right end of the front cross beam is connected with the lower end of a right front supporting leg, the left end part and the right end part of the front cross beam are respectively provided with a front cross beam hydraulic lifting supporting leg, the middle part of each front cross beam hydraulic lifting supporting leg penetrates through the upper side and the lower side of the front cross beam, the lower end of each front cross beam hydraulic lifting supporting leg is provided with a front adjusting supporting leg, each front adjusting supporting leg comprises a plurality of auxiliary supporting legs and a traveling wheel assembly, each front adjusting supporting leg comprises a plurality of auxiliary supporting legs, each traveling wheel assembly is arranged at the lower end of each auxiliary supporting leg, the lower side of each traveling wheel assembly is provided with two short transverse moving rails, one side of each short transverse moving rail, each internal resistance stop block is arranged at one side of each short transverse moving rail, each second front supporting leg assembly is arranged at the left of the first, all be equipped with between left tail landing leg, left well landing leg and left front leg and the left girder and between right tail landing leg, right well landing leg and right front leg and the right girder and indulge and move the peg group assembly, the tail end of left girder is equipped with cab assembly.

The downside of left side purlin car roof beam and right purlin car roof beam all is equipped with electronic walking wheel, electronic walking wheel's downside is equipped with supplementary jack-up hoist engine, cab assembly control tail landing leg hydraulic stretching foot, well landing leg hydraulic stretching foot, crossbeam hydraulic lifting leg, trolley, jack-up hoist engine, electronic walking wheel, supplementary jack-up hoist engine, indulge and move the peg group assembly, shoulder pole hydraulic system, purlin car drive assembly, walking wheel assembly and well crossbeam car operation, controls each mechanism operation through the driver in the cab.

And a plurality of auxiliary hoisting devices are arranged at the two ends of the middle cross beam vehicle and at the lower side of the front cross beam, so that other objects with small weight can be hoisted, and the practicability of the bridge girder erection machine is improved.

A supporting leg supporting cross beam is arranged between the front adjusting supporting leg of the first front supporting leg and the front adjusting supporting leg of the second front supporting leg, and a fixing pin is arranged between the supporting leg supporting cross beam and the front adjusting supporting leg; the support leg supporting cross beam connects and fixes the front adjusting support leg of the first front support leg assembly and the front adjusting support leg of the second front support leg assembly, and the front adjusting support leg of the first front support leg assembly and the front adjusting support leg of the second front support leg assembly are mutually stable during working.

The beam erecting method of the ultra-wide bridge erecting machine comprises the following steps:

step 1: the first longitudinal truss car and the second longitudinal truss car are moved to the tail ends of the left main beam and the right main beam, the tail support leg hydraulic telescopic foot is adjusted to enable the tail support leg supporting beam to be supported on the erected beam slab, the middle support leg hydraulic telescopic foot is adjusted to enable the middle transverse beam car to support the middle support leg assembly at the front end of the erected beam slab through the middle support leg transverse moving track, the left main beam and the right main beam are moved forwards through the longitudinal moving hanging wheel set assembly, the first front support leg assembly and the second front support leg assembly are moved above the to-be-erected beam cover beam, the short transverse moving track is laid on the upper side of the to-be-erected beam cover beam, the travelling wheel assembly of the first front support leg assembly falls to the short transverse moving track, the left main beam and the right main beam are supported through the front transverse beam hydraulic lifting support leg of the first front support leg assembly, the auxiliary support leg of the first front support leg assembly and the auxiliary support leg of the second front support leg assembly are connected and fixed through the support leg, lifting the front cross beam hydraulic lifting support leg of the second front support leg assembly to separate the front cross beam hydraulic lifting support leg of the second front support leg assembly from the auxiliary support leg of the second front support leg assembly;

step 2: when the front lifting point of the beam plate reaches the position right below the first longitudinal truss vehicle, the front lifting point of the beam plate is anchored on a lifting hook of the first longitudinal truss vehicle, and the beam plate is lifted to a specified height through a lifting winch of the first longitudinal truss vehicle;

and step 3: the first longitudinal truss vehicle and the beam transporting vehicle move forwards synchronously, when the rear lifting point of the beam plate reaches the position under the second longitudinal truss vehicle, the rear lifting point of the beam plate is anchored on a lifting hook of the second longitudinal truss vehicle, and the beam plate is lifted to a specified height through a lifting winch of the second longitudinal truss vehicle;

and 4, step 4: the first longitudinal truss vehicle and the second longitudinal truss vehicle synchronously feed the beam, the beam feeding is stopped when the beam slab is conveyed to a front designated position, and at the moment, the front end of the beam slab reaches the rear part of the second front supporting leg assembly;

and 5: the front lifting point of the beam slab is lowered to a specified height through a hoisting winch of the first longitudinal truss car, and the height of the upper side surface of the front lifting point of the beam slab is lower than the lower end of a front cross beam hydraulic lifting support leg of the second front support leg assembly;

step 6: the first longitudinal truss vehicle and the second longitudinal truss vehicle are operated, the front end of the beam plate is conveyed to the rear of the first front leg assembly, the longitudinal beam on the front side of the beam plate is positioned between the second front leg assembly and the first front leg assembly, the front cross beam hydraulic lifting leg of the second front leg assembly is lowered, the front cross beam hydraulic lifting leg of the second front leg assembly is connected with the auxiliary leg of the second front leg assembly, and after the connection and the support of the front cross beam hydraulic lifting leg of the second front leg assembly and the auxiliary leg of the second front leg assembly are confirmed, the front cross beam hydraulic lifting leg of the first front leg assembly is lifted, so that the front cross beam hydraulic lifting leg of the second front leg assembly is separated from the auxiliary leg of the second front leg assembly;

and 7: the first longitudinal truss vehicle and the second longitudinal truss vehicle are operated, the beam plate is fed forwards, the longitudinal beam on the front side of the beam plate reaches the front of the first front support leg assembly, the front cross beam hydraulic lifting support leg of the first front support leg assembly is lowered, the front cross beam hydraulic lifting support leg of the first front support leg assembly is connected with the auxiliary support leg of the first front support leg assembly, and after the connection and the support of the front cross beam hydraulic lifting support leg of the first front support leg assembly and the auxiliary support leg of the first front support leg assembly are confirmed, the front cross beam hydraulic lifting support leg of the second front support leg assembly is lifted, so that the front cross beam hydraulic lifting support leg of the second front support leg assembly is separated from the auxiliary support leg of the second front support leg assembly;

and 8: and operating the first longitudinal truss vehicle and the second longitudinal truss vehicle, continuously feeding the beam plate forwards to enable the longitudinal beam on the front side of the beam plate to reach the rear part of the first front supporting leg assembly, lowering the rear lifting point of the beam plate to the same height as the front lifting point by using the lifting winch of the second longitudinal truss vehicle, simultaneously putting the beam on the cover beam of the beam to be erected by using the lifting winch of the first longitudinal truss vehicle and the lifting winch of the second longitudinal truss vehicle, loosening the lifting hook, and finishing girder erection.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims (5)

1. A super-wide bridge girder erection machine comprises a left main girder, a right main girder, a tail leg assembly, a middle leg assembly, a first front leg assembly and a second front leg assembly, and is characterized in that an upper cross beam is arranged on the upper side between the front end and the rear end of the left main girder and the right main girder, a truss track is arranged on the upper sides of the left main girder and the right main girder, a second longitudinal truss is arranged on the upper rear sides of the left main girder and the right main girder, a first longitudinal truss is arranged on the upper front sides of the left main girder and the right main girder, the first longitudinal truss comprises a left truss girder and a right truss girder, connecting girders are arranged on the front end and the rear end between the left truss girder and the right truss girder, a truss driving assembly is arranged on the lower side of the connecting girders, limiting seats are arranged on the upper sides of the front end and the rear end of the left truss girder and the right truss girder, a trolley track is arranged on the upper sides of the left truss girder and the right truss girders, a hoisting trolley is arranged above the space between the left truss girder and the right truss girder, a hoisting winch is arranged on the hoisting trolley, the hoisting trolley is arranged on a trolley track, a hoisting cable is arranged on the hoisting winch, a hoisting beam is arranged below the hoisting trolley, the hoisting beam is connected with the hoisting winch through the hoisting cable, the hoisting cable passes through the space between the left truss girder and the right truss girder, the first longitudinal truss girder and the second longitudinal truss girder have the same structure, a first hoisting beam carrying pole is arranged below the first longitudinal truss girder, a second hoisting beam carrying pole is arranged below the second longitudinal truss girder, hoisting hooks are arranged on the lower sides of the left end and the right end of the first hoisting beam carrying pole, a supporting hoisting beam is arranged on the upper side of the middle part of the first hoisting beam carrying pole, a movable pin is arranged at the connection position of the lower end of the supporting hoisting beam and the first hoisting beam carrying pole, and the supporting hoisting beam is movably connected with the first hoisting beam through the movable pin, the left upper side of the first hanging beam carrying pole is provided with a carrying pole hydraulic system, the right upper side of the first hanging beam carrying pole is provided with a balance hydraulic cylinder, the right side of the upper end part of the support hanging beam is provided with a support hanging beam connecting block, the right upper side of the first hanging beam carrying pole is provided with a carrying pole connecting block, the left end part of the balance hydraulic cylinder is hinged with the support hanging beam connecting block, the right end part of the balance hydraulic cylinder is hinged with the carrying pole connecting block, the carrying pole hydraulic system controls the balance hydraulic cylinder through a hydraulic pipeline, the upper end of the support hanging beam is connected with a lifting beam below a first longitudinal truss car, the first hanging beam carrying pole and a second hanging beam carrying pole have the same structure, the support hanging beam of the second hanging beam carrying pole is connected with a lifting beam below a second longitudinal truss car, the lower side of the right end part of the left main beam is provided with a left temporary supporting leg, and the lower side of the right end part of the right main beam is, the lower ends of the left temporary support leg and the right temporary support leg are respectively provided with a telescopic support leg, the telescopic support legs comprise a support screw, an adjusting nut and a support base, the support screw is arranged at the upper end of the support base, the support base is movably connected with the support screw, the upper end part of the support screw is arranged in the adjusting nut, the outer side of the adjusting nut is provided with a nut positioning ring, the nut positioning ring is movably connected with a nut, the outer side of the nut positioning ring is connected with the lower end of the left temporary support leg, a temporary support leg supporting beam is arranged between the telescopic support leg at the lower end of the left temporary support leg and the telescopic support leg at the lower end of the right temporary support leg, the tail support leg assembly comprises a left tail support leg and a right tail support leg, the left tail support leg is arranged at the lower side of the left end part of the left main beam, the right tail support leg is arranged at the lower, a tail leg supporting beam is arranged between a tail leg hydraulic telescopic foot at the lower end of the left tail leg and a tail leg hydraulic telescopic foot at the lower end of the right tail leg, the middle leg assembly comprises a left middle leg and a right middle leg, the left middle leg is arranged at the right side of the left tail leg, the right middle leg is arranged at the right side of the right tail leg, middle leg hydraulic telescopic feet are arranged at the lower ends of the left middle leg and the right middle leg, a middle cross beam vehicle is arranged at the lower side between the left middle leg and the right middle leg, the upper sides of the two ends of the middle cross beam are connected with the middle leg hydraulic telescopic feet, a middle leg transverse moving track is arranged at the lower side of the middle cross beam vehicle, a plurality of cushion blocks are arranged at the lower side of the middle leg transverse moving track, the first front leg assembly is arranged at the lower side of the right end parts of the left main beam and the right main beam, the first front leg assembly comprises a left front leg and a right front leg, and a front beam is, the upper side of the left end of the front cross beam is connected with the lower end of a left front supporting leg, the upper side of the right end of the front cross beam is connected with the lower end of a right front supporting leg, the left end part and the right end part of the front cross beam are respectively provided with a front cross beam hydraulic lifting supporting leg, the middle part of each front cross beam hydraulic lifting supporting leg penetrates through the upper side and the lower side of the front cross beam, the lower end of each front cross beam hydraulic lifting supporting leg is provided with a front adjusting supporting leg, each front adjusting supporting leg comprises a plurality of auxiliary supporting legs and a traveling wheel assembly, each front adjusting supporting leg comprises a plurality of auxiliary supporting legs, each traveling wheel assembly is arranged at the lower end of each auxiliary supporting leg, the lower side of each traveling wheel assembly is provided with two short transverse moving rails, one side of each short transverse moving rail, each internal resistance stop block is arranged at one side of each short transverse moving rail, each second front supporting leg assembly is arranged at the left of the first, all be equipped with between left tail landing leg, left well landing leg and left front leg and the left girder and between right tail landing leg, right well landing leg and right front leg and the right girder and indulge and move the peg group assembly, the tail end of left girder is equipped with cab assembly.

2. The ultra-wide bridge girder erection machine according to claim 1, wherein electric traveling wheels are arranged on the lower sides of the left truss girder and the right truss girder, an auxiliary hoisting winch is arranged on the lower side of each electric traveling wheel, and the cab assembly controls the tail leg hydraulic telescopic foot, the middle leg hydraulic telescopic foot, the cross girder hydraulic lifting leg, the crane trolley, the hoisting winch, the electric traveling wheels, the auxiliary hoisting winch, the longitudinal shifting trolley group assembly, the carrying pole hydraulic system, the truss girder driving assembly, the traveling wheel assembly and the middle cross girder trolley to operate.

3. The ultra-wide bridge girder erection machine as claimed in claim 1, wherein a plurality of auxiliary hoisting devices are provided at both ends of the middle cross girder car and at the lower side of the front cross girder.

4. The ultra-wide bridge girder erection machine as claimed in claim 1, wherein a leg supporting cross member is provided between the front adjusting leg of the first front leg and the front adjusting leg of the second front leg, and a fixing pin is provided between the leg supporting cross member and the front adjusting leg.

5. A method for erecting a beam of the ultra-wide bridge erecting machine according to claim 1, 2, 3 or 4, wherein the method for erecting a beam is as follows:

step 1: the first longitudinal truss car and the second longitudinal truss car are moved to the tail ends of the left main beam and the right main beam, the tail support leg hydraulic telescopic foot is adjusted to enable the tail support leg supporting beam to be supported on the erected beam slab, the middle support leg hydraulic telescopic foot is adjusted to enable the middle transverse beam car to support the middle support leg assembly at the front end of the erected beam slab through the middle support leg transverse moving track, the left main beam and the right main beam are moved forwards through the longitudinal moving hanging wheel set assembly, the first front support leg assembly and the second front support leg assembly are moved above the to-be-erected beam cover beam, the short transverse moving track is laid on the upper side of the to-be-erected beam cover beam, the travelling wheel assembly of the first front support leg assembly falls to the short transverse moving track, the left main beam and the right main beam are supported through the front transverse beam hydraulic lifting support leg of the first front support leg assembly, the auxiliary support leg of the first front support leg assembly and the auxiliary support leg of the second front support leg assembly are connected and fixed through the support leg, lifting the front cross beam hydraulic lifting support leg of the second front support leg assembly to separate the front cross beam hydraulic lifting support leg of the second front support leg assembly from the auxiliary support leg of the second front support leg assembly;

step 2: when the front lifting point of the beam plate reaches the position right below the first longitudinal truss vehicle, the front lifting point of the beam plate is anchored on a lifting hook of the first longitudinal truss vehicle, and the beam plate is lifted to a specified height through a lifting winch of the first longitudinal truss vehicle;

and step 3: the first longitudinal truss vehicle and the beam transporting vehicle move forwards synchronously, when the rear lifting point of the beam plate reaches the position under the second longitudinal truss vehicle, the rear lifting point of the beam plate is anchored on a lifting hook of the second longitudinal truss vehicle, and the beam plate is lifted to a specified height through a lifting winch of the second longitudinal truss vehicle;

and 4, step 4: the first longitudinal truss vehicle and the second longitudinal truss vehicle synchronously feed the beam, the beam feeding is stopped when the beam slab is conveyed to a front designated position, and at the moment, the front end of the beam slab reaches the rear part of the second front supporting leg assembly;

and 5: the front lifting point of the beam slab is lowered to a specified height through a hoisting winch of the first longitudinal truss car, and the height of the upper side surface of the front lifting point of the beam slab is lower than the lower end of a front cross beam hydraulic lifting support leg of the second front support leg assembly;

step 6: the first longitudinal truss vehicle and the second longitudinal truss vehicle are operated, the front end of the beam plate is conveyed to the rear of the first front leg assembly, the longitudinal beam on the front side of the beam plate is positioned between the second front leg assembly and the first front leg assembly, the front cross beam hydraulic lifting leg of the second front leg assembly is lowered, the front cross beam hydraulic lifting leg of the second front leg assembly is connected with the auxiliary leg of the second front leg assembly, and after the connection and the support of the front cross beam hydraulic lifting leg of the second front leg assembly and the auxiliary leg of the second front leg assembly are confirmed, the front cross beam hydraulic lifting leg of the first front leg assembly is lifted, so that the front cross beam hydraulic lifting leg of the second front leg assembly is separated from the auxiliary leg of the second front leg assembly;

and 7: the first longitudinal truss vehicle and the second longitudinal truss vehicle are operated, the beam plate is fed forwards, the longitudinal beam on the front side of the beam plate reaches the front of the first front support leg assembly, the front cross beam hydraulic lifting support leg of the first front support leg assembly is lowered, the front cross beam hydraulic lifting support leg of the first front support leg assembly is connected with the auxiliary support leg of the first front support leg assembly, and after the connection and the support of the front cross beam hydraulic lifting support leg of the first front support leg assembly and the auxiliary support leg of the first front support leg assembly are confirmed, the front cross beam hydraulic lifting support leg of the second front support leg assembly is lifted, so that the front cross beam hydraulic lifting support leg of the second front support leg assembly is separated from the auxiliary support leg of the second front support leg assembly;

and 8: and operating the first longitudinal truss vehicle and the second longitudinal truss vehicle, continuously feeding the beam plate forwards to enable the longitudinal beam on the front side of the beam plate to reach the rear part of the first front supporting leg assembly, lowering the rear lifting point of the beam plate to the same height as the front lifting point by using the lifting winch of the second longitudinal truss vehicle, simultaneously putting the beam on the cover beam of the beam to be erected by using the lifting winch of the first longitudinal truss vehicle and the lifting winch of the second longitudinal truss vehicle, loosening the lifting hook, and finishing girder erection.

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