CN110886239A - Ultralow bridge girder erection machine - Google Patents
Ultralow bridge girder erection machine Download PDFInfo
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- CN110886239A CN110886239A CN201911373569.1A CN201911373569A CN110886239A CN 110886239 A CN110886239 A CN 110886239A CN 201911373569 A CN201911373569 A CN 201911373569A CN 110886239 A CN110886239 A CN 110886239A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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Abstract
An ultra-low bridge girder erection machine belongs to the technical field of bridge girder erection machine equipment; the winch set is arranged in the vehicle body structure, and the middle supporting leg traveling wheel assembly is arranged inside the middle supporting leg traveling beam, so that the effect of reducing the overall height of the invention to 4.91 meters is realized; the lower parts of the left middle supporting leg reverse roller group and the right middle supporting leg reverse roller group are integrated with the upper end part of the joint of the middle supporting leg walking beam, so that the effect of reducing the overall height between the left middle supporting leg reverse roller group and the middle supporting leg walking beam is achieved; the upside in the left girder is located to left hydraulic lifting cylinder, and the upside in the right girder is located to right hydraulic lifting cylinder, and the inside of left girder is located to the upper end of left lift tail landing leg, and the inside of right girder is located to the upper end of right lift tail landing leg, realizes reducing the working height of left lift tail landing leg and right lift tail landing leg.
Description
Technical Field
The invention belongs to the technical field of bridge girder erection machine equipment, and particularly relates to an ultra-low 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. However, in the process of erecting a new bridge, different working conditions are met, when the bridge girder erection machine passes through a culvert or works under an erected bridge, the height of the existing bridge girder erection machine is limited, so that the existing bridge girder erection machine cannot finish normal girder erection, and the total height of the existing bridge girder erection machine is generally about 8 meters, so that the construction of girder erection less than 8 meters cannot be finished.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides an ultra-low bridge girder erection machine.
The technical problem of the invention is mainly solved by the following technical scheme: an ultra-low bridge girder erection machine comprises a left main girder, a right main girder, a first longitudinal girder, a second longitudinal girder, a middle supporting leg assembly and a front supporting leg assembly, and is characterized in that the left main girder and the right main girder are built in a pin joint mode, a left guide rail and a right guide rail are arranged on two sides of the lower sides of the left main girder and the right main girder, an upper cross beam is arranged on the upper side between the head and the tail ends of the left main girder and the right main girder, the first longitudinal girder is arranged on the upper side between the head ends of the left main girder and the right main girder, the second longitudinal girder is arranged on the upper side between the tail ends of the left main girder and the right main girder, lifting appliances are arranged below the first longitudinal girder and the second longitudinal girder, a plurality of lifting holes are arranged at the left end and the right end of each lifting appliance, a movable pulley block is arranged on the upper side of the middle part of each lifting appliance, temporary supporting legs are arranged on the lower sides of the head ends of the left main, the lower end of the temporary support leg is provided with an adjusting support leg, the adjusting support leg comprises a lifting screw, a fixing nut and a nut fixing seat, the lifting screw is arranged in the fixing nut, the nut fixing seat is arranged on the outer side of the fixing nut, the upper end of the nut fixing seat is connected with the temporary support leg, the lower end of the lifting screw is provided with a temporary support leg base, the lower side of the tail end of the left main beam is provided with a left tail support leg connecting seat, the lower side of the tail end of the right main beam is provided with a right tail support leg connecting seat, the upper end of the left tail support leg connecting seat is fixed on a left guide rail of the left main beam, the upper end of the right tail support leg connecting seat is fixed on a right guide rail of the right main beam, the middle part of the left tail support leg connecting seat is provided with a left lifting tail support leg, the middle part, a left hydraulic lifting cylinder is arranged above the left tail leg connecting seat, a right hydraulic lifting cylinder is arranged above the right tail leg connecting seat, the left hydraulic lifting cylinder is arranged at the upper side in the left main beam, the upper end of the left hydraulic lifting cylinder is fixedly connected with the upper side of the left main beam, the right hydraulic lifting cylinder is arranged at the upper side in the right main beam, the upper end of the right hydraulic lifting cylinder is fixedly connected with the upper side of the right main beam, the lower end of the left hydraulic lifting cylinder is connected with the left lifting tail leg, the lower end of the right hydraulic lifting cylinder is connected with the right lifting tail leg, the middle leg assembly is arranged at the tail end between the left main beam and the right main beam and comprises a left middle leg reverse roller set, a right middle leg reverse roller set and a middle leg walking beam, the left end of the middle leg walking beam is arranged at the lower side of the left main beam, and the right end of the middle leg walking beam is arranged at the lower side of the, the left middle supporting leg reverse roller is assembled between the middle supporting leg walking beam and the left main beam, the right middle supporting leg reverse roller is assembled between the middle supporting leg walking beam and the right main beam, the two sides inside the middle supporting leg walking beam are respectively provided with a middle supporting leg walking wheel assembly, the front supporting leg assembly is arranged at the head end part between the left main beam and the right main beam, the front supporting leg assembly comprises a left front supporting leg reverse roller set, a right front supporting leg reverse roller set, a front supporting leg walking beam, a left front supporting leg and a right front supporting leg, the left front supporting leg reverse roller is assembled at the lower side of the left main beam, the right front supporting leg reverse roller is assembled at the lower side of the right main beam, the left front supporting leg is arranged at the lower side of the left front supporting leg reverse roller set, the lower side of the left front supporting leg is provided with a left connecting flange, the lower side of the right front supporting leg is provided with a right connecting flange, the left upper end of the front landing leg walking beam is connected with a left connecting flange, the right upper end of the front landing leg walking beam is connected with a right connecting flange, front hydraulic lifting landing legs are arranged at the left end part and the right end part of the front landing leg walking beam, the middle part of each front hydraulic lifting landing leg penetrates through the upper side and the lower side of the front landing leg walking beam, the outer side of the middle part of each front hydraulic lifting landing leg is fixed on the front landing leg walking beam, a front landing leg hydraulic cylinder is arranged at the upper end part of each front hydraulic lifting landing leg and is arranged at the upper side of the front hydraulic lifting landing leg, a hydraulic control system is arranged in the middle part of each front hydraulic lifting landing leg and controls the front landing leg hydraulic cylinder, a front landing leg walking wheel assembly is arranged at the lower end of each front hydraulic lifting landing leg, the lower parts of the left middle landing leg reverse roller group and the right middle landing leg reverse roller, the tail end of the left main beam is provided with a driver control room, the upper sides of the first longitudinal truss car and the second longitudinal truss car are respectively provided with a trolley, the trolley comprises a trolley body structure, two winch units, a fixed pulley block and a balance pulley block, the trolley body structure comprises a short trolley frame and a long trolley frame, trolley driving mechanisms are respectively arranged in the short trolley frame and the long trolley frame, the left side between the short trolley frame and the long trolley frame is provided with a left connecting plate, the right side between the short trolley frame and the long trolley frame is provided with a right connecting plate, the front sides of the left connecting plate and the right connecting plate are provided with a front fixed plate, the middle part of the front fixed plate is provided with a balance pulley rotating shaft, the rear end part of the balance pulley rotating shaft is arranged at the rear side of the front fixed plate, the balance pulley block is arranged on the balance pulley rotating shaft, the pulley block is arranged at the rear side of the balance pulley, the rear end of the balance pulley rotating shaft is arranged on a fixed pulley fixed plate on the front side of a fixed pulley block, the fixed pulley rotating shaft is arranged between the fixed pulley fixed plates on two sides, the fixed pulley block is arranged on the fixed pulley rotating shaft, the two hoisting units are respectively arranged on the left side of a left connecting plate and the right side of a right connecting plate, hoisting machine driving mechanisms are arranged on the front sides of the two hoisting units, end brakes are arranged on the rear sides of the two hoisting machines, hoisting ropes are arranged on the two hoisting units, one ends of the hoisting ropes are arranged on the hoisting units, the hoisting ropes are connected with a movable pulley block through the fixed pulley block, and a driver control room controls a first longitudinal truss vehicle, a second longitudinal truss vehicle, a left hydraulic lifting cylinder, a right hydraulic lifting cylinder, a left middle support leg reverse roller set, a right middle support leg reverse roller set, a left front support leg reverse roller set, a right front support leg reverse roller set, The hydraulic lifting support comprises a front hydraulic lifting support leg, a front support leg hydraulic cylinder, a hydraulic control system, a front support leg traveling wheel assembly, a driving mechanism, a trolley driving mechanism, a winch driving mechanism and a tail end brake.
Preferably, the lower end of the left lifting tail leg is arranged in the left tail leg connecting seat, the upper end of the left lifting tail leg is arranged in the left main beam, the lower end of the right lifting tail leg is arranged in the right tail leg connecting seat, and the upper end of the right lifting tail leg is arranged in the right main beam.
Preferably, the middle supporting leg traveling wheel assembly comprises a traveling wheel driving mechanism and traveling wheels, the traveling wheel driving mechanism is arranged inside the middle supporting leg traveling beam, the upper half part of each traveling wheel is arranged inside the middle supporting leg traveling beam, and the ground contact part of each traveling wheel is arranged on the lower side of the middle supporting leg traveling beam.
Preferably, the two winch units, the left connecting plate, the right connecting plate, the front fixing plate, the fixed pulley block, the balance pulley block, the fixed pulley fixing plate, the tail end brake and the winch driving mechanism are all arranged on the inner side of the vehicle body structure.
Preferably, the distance from the upper side surface of the trolley to the lower end surface of the travelling wheel is 4.91 meters.
The invention has the following beneficial effects: the connection between the components of the left main beam and the right main beam is a pin joint, so that the whole main beam can be disassembled into parts for transportation in the transportation process, and the limitation of the original transportation condition is broken through; the upper cross beam not only enhances the rigidity of the left and right main beams, but also stabilizes the left lifting tail support leg, the right lifting tail support leg and the temporary support leg during operation; the winch set is arranged in the vehicle body structure, and the middle supporting leg traveling wheel assembly is arranged inside the middle supporting leg traveling beam, so that the effect of reducing the overall height of the invention to 4.91 meters is realized; the lower parts of the left middle supporting leg reverse roller group and the right middle supporting leg reverse roller group are integrated with the upper end part of the joint of the middle supporting leg walking beam, so that the effect of reducing the overall height between the left middle supporting leg reverse roller group and the middle supporting leg walking beam is achieved; the left hydraulic lifting cylinder is arranged on the upper side in the left main beam, the right hydraulic lifting cylinder is arranged on the upper side in the right main beam, the upper end of the left lifting tail supporting leg is arranged in the left main beam, and the upper end of the right lifting tail supporting leg is arranged in the right main beam, so that the working heights of the left lifting tail supporting leg and the right lifting tail supporting leg are reduced; the left end and the right end of the lifting appliance are provided with a plurality of lifting holes, and a plurality of cables are arranged on the plurality of lifting holes, so that higher operation safety on lifted objects is realized; the height of the supporting legs is adjusted by rotating the lifting screw, so that the supporting height of the temporary supporting legs can be finely adjusted, the temporary supporting legs can be forwards turned by the turnover mechanism, and the effect of folding the temporary supporting legs is achieved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of the left and right lift tail legs of the present invention;
FIG. 3 is a schematic view of a structure of a walking beam of the leg of the present invention;
FIG. 4 is a schematic view of a front leg walking beam of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 1;
fig. 6 is a schematic view of a trolley according to the invention.
In the figure: 1. a left main beam; 2. a right main beam; 3. a first wale truss vehicle; 4. a second wale truss vehicle; 5. a middle leg assembly; 6. a front leg assembly; 7. a left guide rail; 8. a right guide rail; 9. an upper cross beam; 10. a spreader; 11. hoisting holes; 12. a movable pulley block; 13. a temporary leg; 14. a turnover mechanism; 15. adjusting the support legs; 16. a lifting screw; 17. fixing a nut; 18. a nut fixing seat; 19. a temporary leg base; 20. a left tail leg connecting seat; 21. a right tail leg connecting seat; 22. a left elevating tail leg; 23. a right elevating tail leg; 24. the tail support leg supports the chassis; 25. a left hydraulic lift cylinder; 26. a right hydraulic lift cylinder; 27. a left middle support leg reverse roller set; 28. a right middle supporting leg reverse roller group; 29. a middle supporting leg walking beam; 30. a middle supporting leg traveling wheel assembly; 31. a left front leg reverse roller set; 32. a right front leg reverse roller set; 33. the front supporting leg walking beam; 34. a left front leg; 35. a right front leg; 36. a left attachment flange; 37. a right connecting flange; 38. front hydraulic lifting support legs; 39. a front leg hydraulic cylinder; 40. a hydraulic control system; 41. a front leg traveling wheel assembly; 42. a traveling wheel driving mechanism; 43. a traveling wheel; 44. a trolley; 45. a vehicle body structure; 46. a winch set; 47. a fixed pulley block; 48. a balancing pulley block; 49. a short frame; 50. a long frame; 51. a trolley driving mechanism; 52. a left connecting plate; 53. a right connecting plate; 54. a front fixing plate; 55. a balance pulley shaft; 56. a fixed pulley fixing plate; 57. a fixed pulley rotating shaft; 58. a lifting rope; 59. a driver control room; 60. a hoist drive mechanism; 61. an end stop.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): an ultra-low bridge girder erection machine comprises a left main girder, a right main girder, a first longitudinal girder, a second longitudinal girder, a middle support leg assembly and a front support leg assembly, as shown in figures 1-6, and is characterized in that the left main girder and the right main girder are constructed in a pin joint mode, a left guide rail and a right guide rail are respectively arranged on two sides of the lower sides of the left main girder and the right main girder, an upper cross beam is respectively arranged on the upper sides between the head and the tail ends of the left main girder and the right main girder, the first longitudinal girder is arranged on the upper side between the head ends of the left main girder and the right main girder, the second longitudinal girder is arranged on the upper side between the tail ends of the left main girder and the right main girder, lifting appliances are respectively arranged below the first longitudinal girder and the second longitudinal girder, a plurality of lifting holes are respectively arranged at the left end and the right end of each lifting appliance, a movable pulley block is arranged on the upper side of the middle part of each lifting appliance, temporary support legs are, the upper ends of the temporary support legs are all provided with turnover mechanisms, the lower ends of the temporary support legs are provided with adjusting support legs, each adjusting support leg comprises a lifting screw, a fixing nut and a nut fixing seat, the lifting screw is arranged in the fixing nut, the nut fixing seat is arranged on the outer side of the fixing nut, the upper ends of the nut fixing seats are connected with the temporary support legs, the lower ends of the lifting screws are provided with temporary support leg bases, the lower side of the tail end of the left main beam is provided with a left tail support leg connecting seat, the lower side of the tail end of the right main beam is provided with a right tail support leg connecting seat, the upper ends of the left tail support leg connecting seat are fixed on a left guide rail of the left main beam, the upper ends of the right tail support leg connecting seat are fixed on a right guide rail of the right main beam, the middle part of the left tail support leg connecting seat is provided with a left lifting tail support leg, a left hydraulic lifting cylinder is arranged above the left tail leg connecting seat, a right hydraulic lifting cylinder is arranged above the right tail leg connecting seat, the left hydraulic lifting cylinder is arranged at the upper side in the left main beam, the upper end of the left hydraulic lifting cylinder is fixedly connected with the upper side of the left main beam, the right hydraulic lifting cylinder is arranged at the upper side in the right main beam, the upper end of the right hydraulic lifting cylinder is fixedly connected with the upper side of the right main beam, the lower end of the left hydraulic lifting cylinder is connected with the left lifting tail leg, the lower end of the right hydraulic lifting cylinder is connected with the right lifting tail leg, the middle leg assembly is arranged at the tail end between the left main beam and the right main beam and comprises a left middle leg reverse roller set, a right middle leg reverse roller set and a middle leg walking beam, the left end of the middle leg walking beam is arranged at the lower side of the left main beam, and the right end of the middle leg walking beam is arranged at the lower side of the, the left middle supporting leg reverse roller is assembled between the middle supporting leg walking beam and the left main beam, the right middle supporting leg reverse roller is assembled between the middle supporting leg walking beam and the right main beam, the two sides inside the middle supporting leg walking beam are respectively provided with a middle supporting leg walking wheel assembly, the front supporting leg assembly is arranged at the head end part between the left main beam and the right main beam, the front supporting leg assembly comprises a left front supporting leg reverse roller set, a right front supporting leg reverse roller set, a front supporting leg walking beam, a left front supporting leg and a right front supporting leg, the left front supporting leg reverse roller is assembled at the lower side of the left main beam, the right front supporting leg reverse roller is assembled at the lower side of the right main beam, the left front supporting leg is arranged at the lower side of the left front supporting leg reverse roller set, the lower side of the left front supporting leg is provided with a left connecting flange, the lower side of the right front supporting leg is provided with a right connecting flange, the left upper end of the front landing leg walking beam is connected with a left connecting flange, the right upper end of the front landing leg walking beam is connected with a right connecting flange, front hydraulic lifting landing legs are arranged at the left end part and the right end part of the front landing leg walking beam, the middle part of each front hydraulic lifting landing leg penetrates through the upper side and the lower side of the front landing leg walking beam, the outer side of the middle part of each front hydraulic lifting landing leg is fixed on the front landing leg walking beam, a front landing leg hydraulic cylinder is arranged at the upper end part of each front hydraulic lifting landing leg and is arranged at the upper side of the front hydraulic lifting landing leg, a hydraulic control system is arranged in the middle part of each front hydraulic lifting landing leg and controls the front landing leg hydraulic cylinder, a front landing leg walking wheel assembly is arranged at the lower end of each front hydraulic lifting landing leg, the lower parts of the left middle landing leg reverse roller group and the right middle landing leg reverse roller, the tail end of the left main beam is provided with a driver control room, the upper sides of the first longitudinal truss car and the second longitudinal truss car are respectively provided with a trolley, the trolley comprises a trolley body structure, two winch units, a fixed pulley block and a balance pulley block, the trolley body structure comprises a short trolley frame and a long trolley frame, trolley driving mechanisms are respectively arranged in the short trolley frame and the long trolley frame, the left side between the short trolley frame and the long trolley frame is provided with a left connecting plate, the right side between the short trolley frame and the long trolley frame is provided with a right connecting plate, the front sides of the left connecting plate and the right connecting plate are provided with a front fixed plate, the middle part of the front fixed plate is provided with a balance pulley rotating shaft, the rear end part of the balance pulley rotating shaft is arranged at the rear side of the front fixed plate, the balance pulley block is arranged on the balance pulley rotating shaft, the pulley block is arranged at the rear side of the balance pulley, the rear end of the balance pulley rotating shaft is arranged on a fixed pulley fixed plate on the front side of a fixed pulley block, the fixed pulley rotating shaft is arranged between the fixed pulley fixed plates on two sides, the fixed pulley block is arranged on the fixed pulley rotating shaft, the two hoisting units are respectively arranged on the left side of a left connecting plate and the right side of a right connecting plate, hoisting machine driving mechanisms are arranged on the front sides of the two hoisting units, end brakes are arranged on the rear sides of the two hoisting machines, hoisting ropes are arranged on the two hoisting units, one ends of the hoisting ropes are arranged on the hoisting units, the hoisting ropes are connected with a movable pulley block through the fixed pulley block, and a driver control room controls a first longitudinal truss vehicle, a second longitudinal truss vehicle, a left hydraulic lifting cylinder, a right hydraulic lifting cylinder, a left middle support leg reverse roller set, a right middle support leg reverse roller set, a left front support leg reverse roller set, a right front support leg reverse roller set, The hydraulic lifting support comprises a front hydraulic lifting support leg, a front support leg hydraulic cylinder, a hydraulic control system, a front support leg traveling wheel assembly, a driving mechanism, a trolley driving mechanism, a winch driving mechanism and a tail end brake.
The lower end part of the left lifting tail leg is arranged in the left tail leg connecting seat, the upper end part of the left lifting tail leg is arranged in the left main beam, the lower end part of the right lifting tail leg is arranged in the right tail leg connecting seat, and the upper end part of the right lifting tail leg is arranged in the right main beam; the height of the tail leg is minimized.
The middle supporting leg walking wheel assembly comprises a walking wheel driving mechanism and walking wheels, the walking wheel driving mechanism is arranged inside the middle supporting leg walking beam, the upper half part of each walking wheel is arranged inside the middle supporting leg walking beam, and the ground contact part of each walking wheel is arranged on the lower side of the middle supporting leg walking beam; the height of the middle supporting leg traveling wheel assembly is reduced.
The two hoisting units, the left connecting plate, the right connecting plate, the front fixing plate, the fixed pulley block, the balance pulley block, the fixed pulley fixing plate, the tail end brake and the hoisting machine driving mechanism are all arranged on the inner side of the trolley body structure, and the whole height of the hoisting trolley is reduced.
The distance from the upper side surface of the trolley to the lower end surface of the travelling wheel is 4.91 meters; the operation under the ultra-low working condition is realized.
The use principle of the invention is as follows:
the height of the hoisting trolley and the height of the middle leg walking beam are reduced, the lower parts of the left middle leg anti-roller set and the right middle leg anti-roller set and the upper end of the joint of the middle leg walking beam are integrated, the integral height between the left middle leg anti-roller set and the right middle leg anti-roller set and the middle leg walking beam is reduced, the left hydraulic lifting cylinder is arranged on the upper side in the left main beam, the right hydraulic lifting cylinder is arranged on the upper side in the right main beam, the upper end of the left lifting tail supporting leg is arranged in the left main beam, the upper end of the right lifting tail supporting leg is arranged in the right main beam, the working height of the left lifting tail supporting leg and the working height of the right lifting tail supporting leg are reduced, the integral height of the hoisting trolley is reduced to 4.91 meters, and the hoisting trolley can be constructed under the height limit lower.
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. An ultra-low bridge girder erection machine comprises a left main girder, a right main girder, a first longitudinal girder, a second longitudinal girder, a middle supporting leg assembly and a front supporting leg assembly, and is characterized in that the left main girder and the right main girder are built in a pin joint mode, a left guide rail and a right guide rail are arranged on two sides of the lower sides of the left main girder and the right main girder, an upper cross beam is arranged on the upper side between the head and the tail ends of the left main girder and the right main girder, the first longitudinal girder is arranged on the upper side between the head ends of the left main girder and the right main girder, the second longitudinal girder is arranged on the upper side between the tail ends of the left main girder and the right main girder, lifting appliances are arranged below the first longitudinal girder and the second longitudinal girder, a plurality of lifting holes are arranged at the left end and the right end of each lifting appliance, a movable pulley block is arranged on the upper side of the middle part of each lifting appliance, temporary supporting legs are arranged on the lower sides of the head ends of the left main, the lower end of the temporary support leg is provided with an adjusting support leg, the adjusting support leg comprises a lifting screw, a fixing nut and a nut fixing seat, the lifting screw is arranged in the fixing nut, the nut fixing seat is arranged on the outer side of the fixing nut, the upper end of the nut fixing seat is connected with the temporary support leg, the lower end of the lifting screw is provided with a temporary support leg base, the lower side of the tail end of the left main beam is provided with a left tail support leg connecting seat, the lower side of the tail end of the right main beam is provided with a right tail support leg connecting seat, the upper end of the left tail support leg connecting seat is fixed on a left guide rail of the left main beam, the upper end of the right tail support leg connecting seat is fixed on a right guide rail of the right main beam, the middle part of the left tail support leg connecting seat is provided with a left lifting tail support leg, the middle part, a left hydraulic lifting cylinder is arranged above the left tail leg connecting seat, a right hydraulic lifting cylinder is arranged above the right tail leg connecting seat, the left hydraulic lifting cylinder is arranged at the upper side in the left main beam, the upper end of the left hydraulic lifting cylinder is fixedly connected with the upper side of the left main beam, the right hydraulic lifting cylinder is arranged at the upper side in the right main beam, the upper end of the right hydraulic lifting cylinder is fixedly connected with the upper side of the right main beam, the lower end of the left hydraulic lifting cylinder is connected with the left lifting tail leg, the lower end of the right hydraulic lifting cylinder is connected with the right lifting tail leg, the middle leg assembly is arranged at the tail end between the left main beam and the right main beam and comprises a left middle leg reverse roller set, a right middle leg reverse roller set and a middle leg walking beam, the left end of the middle leg walking beam is arranged at the lower side of the left main beam, and the right end of the middle leg walking beam is arranged at the lower side of the, the left middle supporting leg reverse roller is assembled between the middle supporting leg walking beam and the left main beam, the right middle supporting leg reverse roller is assembled between the middle supporting leg walking beam and the right main beam, the two sides inside the middle supporting leg walking beam are respectively provided with a middle supporting leg walking wheel assembly, the front supporting leg assembly is arranged at the head end part between the left main beam and the right main beam, the front supporting leg assembly comprises a left front supporting leg reverse roller set, a right front supporting leg reverse roller set, a front supporting leg walking beam, a left front supporting leg and a right front supporting leg, the left front supporting leg reverse roller is assembled at the lower side of the left main beam, the right front supporting leg reverse roller is assembled at the lower side of the right main beam, the left front supporting leg is arranged at the lower side of the left front supporting leg reverse roller set, the lower side of the left front supporting leg is provided with a left connecting flange, the lower side of the right front supporting leg is provided with a right connecting flange, the left upper end of the front landing leg walking beam is connected with a left connecting flange, the right upper end of the front landing leg walking beam is connected with a right connecting flange, front hydraulic lifting landing legs are arranged at the left end part and the right end part of the front landing leg walking beam, the middle part of each front hydraulic lifting landing leg penetrates through the upper side and the lower side of the front landing leg walking beam, the outer side of the middle part of each front hydraulic lifting landing leg is fixed on the front landing leg walking beam, a front landing leg hydraulic cylinder is arranged at the upper end part of each front hydraulic lifting landing leg and is arranged at the upper side of the front hydraulic lifting landing leg, a hydraulic control system is arranged in the middle part of each front hydraulic lifting landing leg and controls the front landing leg hydraulic cylinder, a front landing leg walking wheel assembly is arranged at the lower end of each front hydraulic lifting landing leg, the lower parts of the left middle landing leg reverse roller group and the right middle landing leg reverse roller, the tail end of the left main beam is provided with a driver control room, the upper sides of the first longitudinal truss car and the second longitudinal truss car are respectively provided with a trolley, the trolley comprises a trolley body structure, two winch units, a fixed pulley block and a balance pulley block, the trolley body structure comprises a short trolley frame and a long trolley frame, trolley driving mechanisms are respectively arranged in the short trolley frame and the long trolley frame, the left side between the short trolley frame and the long trolley frame is provided with a left connecting plate, the right side between the short trolley frame and the long trolley frame is provided with a right connecting plate, the front sides of the left connecting plate and the right connecting plate are provided with a front fixed plate, the middle part of the front fixed plate is provided with a balance pulley rotating shaft, the rear end part of the balance pulley rotating shaft is arranged at the rear side of the front fixed plate, the balance pulley block is arranged on the balance pulley rotating shaft, the pulley block is arranged at the rear side of the balance pulley, the rear end of the balance pulley rotating shaft is arranged on a fixed pulley fixed plate on the front side of a fixed pulley block, the fixed pulley rotating shaft is arranged between the fixed pulley fixed plates on two sides, the fixed pulley block is arranged on the fixed pulley rotating shaft, the two hoisting units are respectively arranged on the left side of a left connecting plate and the right side of a right connecting plate, hoisting machine driving mechanisms are arranged on the front sides of the two hoisting units, end brakes are arranged on the rear sides of the two hoisting machines, hoisting ropes are arranged on the two hoisting units, one ends of the hoisting ropes are arranged on the hoisting units, the hoisting ropes are connected with a movable pulley block through the fixed pulley block, and a driver control room controls a first longitudinal truss vehicle, a second longitudinal truss vehicle, a left hydraulic lifting cylinder, a right hydraulic lifting cylinder, a left middle support leg reverse roller set, a right middle support leg reverse roller set, a left front support leg reverse roller set, a right front support leg reverse roller set, The hydraulic lifting support comprises a front hydraulic lifting support leg, a front support leg hydraulic cylinder, a hydraulic control system, a front support leg traveling wheel assembly, a driving mechanism, a trolley driving mechanism, a winch driving mechanism and a tail end brake.
2. The ultra-low bridge girder erection machine according to claim 1, wherein the lower end of the left lifting tail leg is arranged in the left tail leg connecting seat, the upper end of the left lifting tail leg is arranged in the left main girder, the lower end of the right lifting tail leg is arranged in the right tail leg connecting seat, and the upper end of the right lifting tail leg is arranged in the right main girder.
3. The ultra-low bridge girder erection machine according to claim 1, wherein the middle support traveling wheel assembly comprises a traveling wheel driving mechanism and traveling wheels, the traveling wheel driving mechanism is arranged inside the middle support traveling beam, the upper half part of the traveling wheels is arranged inside the middle support traveling beam, and the ground contact part of the traveling wheels is arranged on the lower side of the middle support traveling beam.
4. The ultra-low bridge girder erection machine according to claim 1, wherein the two hoisting units, the left connecting plate, the right connecting plate, the front fixing plate, the fixed pulley block, the balance pulley block, the fixed pulley block, the end brake and the hoisting machine driving mechanism are all arranged on the inner side of the car body structure.
5. The ultra-low bridge girder erection machine according to claim 1, wherein the distance from the upper side surface of the trolley to the lower end surface of the travelling wheel is 4.91 meters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911373569.1A CN110886239B (en) | 2019-12-27 | 2019-12-27 | Ultralow bridge girder erection machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373569.1A CN110886239B (en) | 2019-12-27 | 2019-12-27 | Ultralow bridge girder erection machine |
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| CN110886239A true CN110886239A (en) | 2020-03-17 |
| CN110886239B CN110886239B (en) | 2024-09-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0841828A (en) * | 1994-08-01 | 1996-02-13 | P S Co Ltd | Bridge girder erection equipment |
| CN204252024U (en) * | 2014-12-02 | 2015-04-08 | 张晓莹 | Bridging machine for both highway and railway |
| CN107700367A (en) * | 2017-11-22 | 2018-02-16 | 浙江中建路桥设备有限公司 | A kind of integrated bridge machine |
| CN109763430A (en) * | 2019-01-31 | 2019-05-17 | 浙江中建路桥设备有限公司 | A kind of Bridge Erector that curve via holes are set a roof beam in place and its application method |
| CN211922303U (en) * | 2019-12-27 | 2020-11-13 | 浙江中建路桥设备有限公司 | Ultralow bridge girder erection machine |
-
2019
- 2019-12-27 CN CN201911373569.1A patent/CN110886239B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0841828A (en) * | 1994-08-01 | 1996-02-13 | P S Co Ltd | Bridge girder erection equipment |
| CN204252024U (en) * | 2014-12-02 | 2015-04-08 | 张晓莹 | Bridging machine for both highway and railway |
| CN107700367A (en) * | 2017-11-22 | 2018-02-16 | 浙江中建路桥设备有限公司 | A kind of integrated bridge machine |
| CN109763430A (en) * | 2019-01-31 | 2019-05-17 | 浙江中建路桥设备有限公司 | A kind of Bridge Erector that curve via holes are set a roof beam in place and its application method |
| CN211922303U (en) * | 2019-12-27 | 2020-11-13 | 浙江中建路桥设备有限公司 | Ultralow bridge girder erection machine |
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| CN110886239B (en) | 2024-09-03 |
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