CN117721722B - Multi-span continuous operation pier-beam integrated bridge girder erection machine and application method thereof - Google Patents
Multi-span continuous operation pier-beam integrated bridge girder erection machine and application method thereof Download PDFInfo
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- CN117721722B CN117721722B CN202311535781.XA CN202311535781A CN117721722B CN 117721722 B CN117721722 B CN 117721722B CN 202311535781 A CN202311535781 A CN 202311535781A CN 117721722 B CN117721722 B CN 117721722B
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- 210000001503 joint Anatomy 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 238000004804 winding Methods 0.000 claims description 14
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Abstract
The invention discloses a multi-span continuous operation pier-beam integrated bridge girder erection machine and a use method thereof, wherein the multi-span continuous operation pier-beam integrated bridge girder erection machine comprises a main beam body and an auxiliary beam body, the auxiliary beam body is movably arranged on the outer surface of one end of the main beam body, two groups of rear drivers are arranged at the lower part of the auxiliary beam body, two groups of front drivers are arranged at the lower part of the main beam body, the auxiliary beam body, the rear drivers and the main beam body and the front drivers are movably connected through lifting pieces, a first lifting appliance and a second lifting appliance which are used for being matched with the lifting pieces are movably arranged at the lower part of the main beam body, the upper parts of the first lifting appliance and the second lifting appliance are connected with the main beam body through steel cables, a butt joint angle sleeve is arranged at one side of the steel cable, and two groups of sliding clamping blocks are movably arranged at the lower parts of the first lifting appliance and the second lifting appliance; the laying operation of a plurality of precast beams can be carried out at a time, the continuous operation is convenient, the working efficiency is improved, meanwhile, the moving distance of the cross pier can be arbitrarily adjusted according to the length and the width of the precast beams.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to a multi-span continuous operation pier-beam integrated bridge girder erection machine and a use method thereof.
Background
The bridge girder erection machine is a device for placing prefabricated girder segments on prefabricated piers. It belongs to the category of cranes because its main function is to lift the beam sheet, then transport it to a location and then drop it. Bridge girder erection machines are quite different from cranes in the general sense, have more demanding conditions and run on girder segments or are called longitudinal movements. The bridge girder erection machine is mainly used for constructing highway bridges, conventional railway bridges, passenger special railway bridges and the like.
Patent document CN103410099B discloses a bridge girder erection machine, which comprises a front supporting leg, a rear supporting leg, a front support, a rear support, a cross beam, a hoisting trolley and a girder transporting trolley, wherein the hoisting trolley comprises a first hoisting trolley and a second hoisting trolley, the girder transporting trolley comprises a first girder transporting trolley and a second girder transporting trolley, the first hoisting trolley is positioned on the right side of the second hoisting trolley, and the first hoisting trolley further comprises a first driving mechanism for driving the first hoisting trolley to move along the length direction of the cross beam and a high-speed end controller for controlling the first driving mechanism; the first hoisting trolley and the first girder transporting trolley synchronously move, so that when the tail part of the girder to be bridged is fed, the equipment works more stably, the manpower is saved, the structure of the girder erection machine is simplified, and the manufacturing cost is reduced.
When the traditional bridge girder erection machine is used, certain defects exist, the traditional bridge girder erection machine can only carry out the movable paving operation of a single girder structure at a time, and is influenced by the lifting structure of the bridge girder erection machine, so that the bridge girder erection machine cannot lift and move a plurality of girder bodies at the same time, and the continuity and the working efficiency of the bridge girder erection machine during operation are reduced; meanwhile, the main body of the traditional bridge girder erection machine adopts a fixed structural design, so that the bridge girder erection machine is limited by the length of the bridge girder erection machine when the bridge girder erection machine performs the bridge girder erection movement operation, can not be randomly adjusted according to the distance between bridge piers, and meanwhile, the flexibility of the bridge girder erection machine during the multi-span operation is limited, and the application range of the bridge girder erection machine is reduced; secondly, when the traditional bridge girder erection machine is used for hoisting a girder body, the traditional bridge girder erection machine is affected by shaking of the girder body, so that the side edge structure of the girder body is easily damaged when the steel cable is bound and hoisted, and the safety of the girder body during hoisting operation is reduced.
Disclosure of Invention
The invention aims to provide a multi-span continuous operation pier-beam integrated bridge girder erection machine and a use method thereof, which can solve the existing problems.
The invention solves the problems that:
1. the traditional bridge girder erection machine can only carry out the movable paving operation of a single girder structure at a time, is influenced by the lifting structure of the bridge girder erection machine, so that the bridge girder erection machine cannot lift and move a plurality of girder bodies at the same time, and the continuity and the working efficiency of the bridge girder erection machine during operation are reduced;
2. Meanwhile, the main body of the traditional bridge girder erection machine adopts a fixed structural design, so that the bridge girder erection machine is limited by the length of the bridge girder erection machine when the bridge girder erection machine performs the bridge girder erection movement operation, can not be randomly adjusted according to the distance between bridge piers, and meanwhile, the flexibility of the bridge girder erection machine during the multi-span operation is limited, and the application range of the bridge girder erection machine is reduced;
3. traditional bridge crane is when carrying out the hoist and mount operation of roof beam body, receives roof beam body self to rock the influence for the steel cable is when binding hoist and mount operation, damages roof beam body side structure easily, has reduced the security when the hoist and mount operation of roof beam body.
The aim of the invention can be achieved by the following technical scheme:
The utility model provides a multispan continuous operation mound roof beam integration bridge crane, includes the girder body and the auxiliary girder body, auxiliary girder body movable mounting is at the one end surface of girder body, the lower part of auxiliary girder body is provided with two sets of back driver, the lower part of girder body is provided with two sets of front driver, all pass through lifter swing joint between auxiliary girder body and the back driver and between girder body and the front driver, the lower part movable mounting of girder body has first hoist and the second hoist that is used for cooperating the lifter to use, all be connected through the steel cable between the upper portion of first hoist and the second hoist and the girder body, the butt joint angle cover is installed to one side of steel cable, first hoist and second hoist upper end are used for hoist first precast beam, the equal movable mounting of lower part of first hoist and second hoist has two sets of slide fixture blocks that are used for hoist second precast beam.
According to the further technical scheme, the first lifting appliance and the sliding clamping block are movably abutted through the sliding frame, a sliding groove is formed in the inner side of the sliding frame, a bolt body is arranged between the sliding clamping block and the sliding frame, the sliding clamping block forms a lifting type fixing structure at the bottoms of the first lifting appliance and the second lifting appliance, the sliding clamping block is clamped into a clamping groove reserved for the beam body when in use, and then a clamping pin is inserted into the sliding clamping block, so that the sliding clamping block and the beam body are lifted and fixed, meanwhile, according to the width of the beam body, the sliding frame can be used for adjusting the distance between the two groups of sliding clamping blocks, and then the bolt body is used for fixing, locking and fixing the sliding clamping blocks after adjustment, so that the beam bodies with different widths can be lifted.
According to the invention, the whole steel cable is of a two-section structure, the whole butt joint angle sleeve is L-shaped, two groups of rotary threaded sleeves and a butt joint clamping sleeve are arranged on one side of the butt joint angle sleeve, the two groups of rotary threaded sleeves are movably arranged at the upper end and the lower end of the butt joint clamping sleeve, a fastening bolt is movably sleeved on one side of the butt joint clamping sleeve, a backing plate is arranged on one side of the butt joint angle sleeve, the butt joint angle sleeve is matched with the butt joint clamping sleeve, a binding lifting structure is formed on the upper portion of the first lifting appliance and the upper portion of the second lifting appliance, the two ends of the steel cable are separated through rotating the rotary threaded sleeves during use, so that the first lifting appliance and the second lifting appliance are taken down, a threaded head matched with the rotary threaded sleeves is arranged on the steel cable, the steel cable can be used for split operation by adopting the threaded structure, after the first lifting appliance and the second lifting appliance are taken down, the first lifting appliance and the second lifting appliance are cushioned at the lower portion of the beam body, after the first lifting appliance and the second lifting appliance are fixed again, the first lifting appliance body is lifted by the steel cable, and the second lifting appliance body is operated by the sliding clamping block at the lower portion of the first lifting appliance.
As a further technical scheme of the invention, the upper end of the steel cable is provided with the winding rods, gears are arranged in the middle of the outer surface of the winding rods, the two winding rods are in transmission connection through the gears and the chains, when the beam body is lifted, one winding rod is driven to rotate by a motor, and a transmission structure is formed by the chains and the gears, so that the two winding rods synchronously rotate, and the first lifting appliance and the second lifting appliance are driven to move up and down.
As a further technical scheme of the invention, a telescopic beam is movably arranged between the main beam body and the auxiliary beam body, the inner side of the auxiliary beam body is provided with a telescopic slot matched with the telescopic beam for use, telescopic rods are arranged on two sides of the telescopic beam between the main beam body and the auxiliary beam body, and a telescopic adjusting structure is arranged between the main beam body and the auxiliary beam body by utilizing the arrangement of the telescopic beam, so that the lower part of the main beam body can hoist beam bodies with different lengths.
According to the invention, as a further technical scheme, a lifting base plate is movably arranged between the two groups of lifting pieces, the middle part of the outer surface of the lifting base plate is provided with reinforcing ribs, the lifting pieces and the lifting base plate are driven by hydraulic rods, when the first lifting tool and the second lifting tool carry out double-beam lifting operation, the lifting base plate is driven by the hydraulic rods of the lifting pieces, so that the lifting base plate drives the main beam body and the auxiliary beam body to move upwards, the heights of the main beam body and the auxiliary beam body are adjusted, and the lower spaces of the main beam body and the auxiliary beam body are adjusted.
As a further technical scheme of the invention, the upper surface of the auxiliary beam body is provided with a driving piece for driving the telescopic beam, the outer surface of the upper end of the telescopic beam is provided with a tooth slot, and the telescopic beam is driven by the driving piece in cooperation with the tooth slot, so that the telescopic beam can be in telescopic adjustment.
According to the invention, the movable support is movably arranged at the lower part of the main beam body, the main beam body and the movable support are movably connected through the movable sliding block, the front support is movably arranged at the end part of the main beam body, and the movable support and the front support can be used for carrying out auxiliary support on the main beam body and the bridge pier in a dead state of the main beam body, so that the main beam body can be conveniently lifted in a movable manner.
As a further technical scheme of the invention, the movable sliding block is in butt joint with the main beam body through the sliding groove, the inner side of the movable sliding block is movably provided with the electric caster, one end of the movable sliding block is movably provided with the side rotating frame, the side rotating frame is movably connected with the movable supporting frame through the linkage rod, the side rotating frame and the front supporting frame are driven by the motor, and the side rotating frame is matched with the linkage rod to drive the movable supporting frame to rotate for a certain angle.
The application method of the multi-span continuous operation pier-beam integrated bridge girder erection machine comprises the following specific operation steps:
step one, moving a main beam body to the upper part of a precast beam by utilizing a rear driver and a front driver, and adjusting the service length of the main beam body according to the length of the precast beam by utilizing a telescopic beam;
Step two, placing a first lifting appliance and a second lifting appliance at the bottom of the precast beam, lifting the first precast beam by using a steel cable, and adjusting the use heights of the main beam body and the auxiliary beam body by matching a lifting piece with a hydraulic rod when the second precast beam is lifted;
Step three, utilizing the butt joint of slip fixture block to fix the prefabricated roof beam of second, hoist the prefabricated roof beam of second through the steel cable, remove the girder body to the erection region, support the removal strut on the pier, cooperate the removal slider and make the girder body move forward, support preceding strut on the pier again, pack up and remove the strut for remove the strut and replace preceding strut, utilize the removal slider to make the girder body continue the forward movement, place the prefabricated roof beam in the girder region that falls, release two sets of prefabricated roof beams in proper order.
The invention has the beneficial effects that:
1. through arranging the first lifting appliance and the second lifting appliance, when the multi-span continuous operation pier-girder integrated bridge girder erection machine is used, the lifting and adjustment of the main girder body and the auxiliary girder body are matched with the lifting and lowering parts, so that the lower parts of the first lifting appliance and the second lifting appliance can simultaneously carry out the lifting operation of two groups of girder bodies, the continuity of the operation is improved, when the first lifting appliance and the second lifting appliance carry out the double-girder body lifting operation, the lifting base plate is driven by the hydraulic rod of the lifting and lowering parts, the lifting base plate drives the main girder body and the auxiliary girder body to move upwards, the heights of the main girder body and the auxiliary girder body are adjusted, the lower parts of the main girder body and the auxiliary girder body can simultaneously contain two groups of girder bodies, the butt joint sleeve is matched with the butt joint sleeve, the binding lifting structure is formed at the upper parts of the first lifting appliance and the second lifting appliance, the two ends of a steel cable are separated by rotating the rotating screw sleeve during use, the first lifting appliance and the second lifting appliance are taken down, the steel cable is provided with the threaded head matched with the rotary threaded sleeve, so that the steel cable can be split by adopting the threaded structure, after the first lifting appliance and the second lifting appliance are taken down, the first lifting appliance and the second lifting appliance are cushioned at the lower part of the beam body, after the first lifting appliance and the second lifting appliance are re-fixed, the first beam body is lifted by the steel cable, the abutting angle sleeve protects the side edge of the beam body, when the sliding clamping blocks at the lower part of the first lifting appliance and the second lifting appliance are utilized for lifting the second beam body, the sliding clamping blocks are clamped into the clamping grooves reserved in the beam body, the clamping pins are inserted into the sliding clamping blocks, so that the sliding clamping blocks and the beam body are lifted and fixed, meanwhile, the distance between the two groups of sliding clamping blocks can be adjusted by the sliding frame according to the width of the beam body, the sliding clamping blocks are used for fixing and locking and fixing the beam body by the bolts, the sliding clamping blocks after adjustment can hoist beam bodies with different widths, after the double-beam body fixing operation is completed, the bridge girder erection machine moves to sequentially put down two groups of beam bodies, and the continuous pier-crossing paving operation is completed.
2. Through setting up the telescopic girder, when this multispan continuous operation mound roof beam integration bridge crane uses, form flexible regulation structure between the girder body and the auxiliary girder body through the telescopic girder, when the bridge crane strides mound removal operation, can be according to bridge pier interval nimble regulation bridge crane overall length, the use of cooperation first hoist and second hoist, make things convenient for it to carry out multispan body continuous laying operation, during the use, the upper end surface of telescopic girder is provided with the tooth's socket, the driving piece comprises motor and gear structure, gear cooperation tooth's socket through the driving piece drives the telescopic girder, make the telescopic girder carry out flexible regulation, utilize the setting of telescopic girder, can adjust the overall length of bridge crane, make the lower part of the girder body hoist and mount different length of girder body simultaneously, when striding mound removal, utilize movable support and preceding strut can be under girder body empty state, carry out auxiliary support to girder body and pier between, make things convenient for its removal hoist and mount that carries out the girder body, it is moved to the region to erect, the movable support frame is on the pier, the cooperation removes the slider and makes the girder body continue to move forward, and support bridge pier, make the girder body move forward, use the bridge frame to take turns to the bridge girder body to the prefabricated strut in proper order, make the prefabricated girder set to take turns to the place in the prefabricated girder.
3. Through setting up the butt joint angle cover, when this multispan continuous operation mound roof beam integration bridge crane uses, utilize the butt joint angle cover can optimize the use to first hoist and second hoist, the security when lifting first hoist and the hoist of second hoist binding type roof beam body hoist operation, during the use, because the butt joint angle cover adopts L type structural design for the butt joint angle cover can be filled up between steel cable and precast beam both sides, avoid steel cable direct contact precast beam, prevent precast beam damage, can increase lift base plate structural strength through the setting of strengthening the arris simultaneously, make things convenient for it to carry out double beam body hoist operation, the lower part of back driver and front driver all moves through the universal wheel, make the bridge crane can carry out the removal operation of arbitrary position.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the overall structure of a multi-span continuous operation pier-beam integrated bridge girder erection machine;
FIG. 2 is a diagram showing the overall construction of a mobile bracket in a multi-span continuous operation pier-beam integrated bridge girder erection machine according to the present invention;
FIG. 3 is a plan view of a first hanger of the multi-span continuous operation pier-beam integrated bridge girder erection machine of the present invention;
FIG. 4 is a partial structure diagram of a main girder and an auxiliary girder of the multi-span continuous operation pier-girder integrated bridge girder erection machine;
FIG. 5 is a block diagram of the whole butt angle sleeve in the multi-span continuous operation pier-beam integrated bridge girder erection machine;
FIG. 6 is an overall structure diagram of a rear driver in the multi-span continuous operation pier-beam integrated bridge girder erection machine of the present invention.
In the figure: 1. a rear driver; 2. a first hanger; 3. a second hanger; 4. moving the support; 5. a front driver; 6. a front support; 7. a main beam body; 8. a driving member; 9. an auxiliary beam body; 10. a lifting member; 11. a linkage rod; 12. a side rotating frame; 13. electric casters; 14. moving the slide block; 15. a carriage; 16. sliding the clamping block; 17. a butt joint angle sleeve; 18. a wire rope; 19. a winding rod; 20. a gear; 21. a telescopic rod; 22. a telescopic beam; 23. tooth slots; 24. rotating the screw sleeve; 25. a fastening bolt; 26. a backing plate; 27. a butt joint cutting sleeve; 28. a hydraulic rod; 29. lifting the substrate; 30. reinforcing the ribs.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1-6, a multi-span continuous operation pier-girder integrated bridge girder erection machine comprises a main girder body 7 and a secondary girder body 9, wherein the secondary girder body 9 is movably installed on the outer surface of one end of the main girder body 7, two groups of rear drivers 1 are arranged at the lower part of the secondary girder body 9, two groups of front drivers 5 are arranged at the lower part of the main girder body 7, the secondary girder body 9 and the rear drivers 1 and the main girder body 7 and the front drivers 5 are movably connected through lifting pieces 10, a first lifting appliance 2 and a second lifting appliance 3 which are used for being matched with the lifting pieces 10 are movably installed at the lower part of the main girder body 7, the upper parts of the first lifting appliance 2 and the second lifting appliance 3 are connected with the main girder body 7 through steel cables 18, a butt joint angle sleeve 17 is installed at one side of the steel cables 18, and two groups of sliding clamping blocks 16 used for lifting the second precast girders are movably installed at the lower parts of the first lifting appliance 2 and the second lifting appliance 3.
The first lifting appliance 2 and the sliding clamping block 16 and the second lifting appliance 3 and the sliding clamping block 16 are movably abutted through the sliding frame 15, a sliding groove is formed in the inner side of the sliding frame 15, a bolt body is arranged between the sliding clamping block 16 and the sliding frame 15, the sliding clamping block 16 forms a lifting type fixing structure at the bottom of the first lifting appliance 2 and the bottom of the second lifting appliance 3, the sliding clamping block 16 is clamped into a clamping groove reserved for the beam body when the lifting type lifting appliance is used, the clamping pin is inserted into the sliding clamping block 16, the sliding clamping block 16 and the beam body are lifted and fixed, meanwhile, according to the width of the beam body, the sliding frame 15 can be utilized to adjust the distance between the two groups of sliding clamping blocks 16, and the bolt body is utilized to fix and lock the sliding clamping blocks 16 after adjustment, so that the beam bodies with different widths can be lifted.
The whole of steel cable 18 is two segmentation structures, the whole of butt joint angle cover 17 is L form, two sets of rotatory swivel nut 24 and butt joint cutting ferrule 27 are installed to one side of butt joint angle cover 17, two sets of rotatory swivel nut 24 movable mounting has been cup jointed fastening bolt 25 in the upper and lower both ends of butt joint cutting ferrule 27, backing plate 26 is installed to one side of butt joint angle cover 17, utilize butt joint angle cover 17 cooperation butt joint cutting ferrule 27, form the binding and lift by crane the structure in the upper portion of first hoist 2 and second hoist 3, separate between the both ends of steel cable 18 through rotating swivel nut 24 during the use, make first hoist 2 and second hoist 3 take off, steel cable 18 is provided with the screw thread head that the cooperation swivel nut 24 used, consequently, can adopt the screw thread structure to carry out split operation to steel cable 18, after taking off first hoist 2 and second hoist 3, with first hoist 2 and second hoist 3 pair pad in the roof beam body lower part, after the second hoist 3 is fixed again, utilize steel cable 18 to lift first roof beam body, utilize hoist 2 and second hoist 3 to carry out the operation to the second roof beam body 16.
The upper end of the steel cable 18 is provided with winding rods 19, a gear 20 is arranged in the middle of the outer surface of each winding rod 19, two groups of winding rods 19 are connected through the gear 20 in a matched chain transmission manner, when the beam body is lifted, one winding rod 19 is driven to rotate by a motor, a transmission structure is formed through the chain matched with the gear 20, and the two winding rods 19 synchronously rotate, so that the first lifting appliance 2 and the second lifting appliance 3 are driven to lift.
A telescopic beam 22 is movably mounted between the main beam body 7 and the auxiliary beam body 9, telescopic grooves matched with the telescopic beam 22 are formed in the inner side of the auxiliary beam body 9, telescopic rods 21 are arranged on two sides of the telescopic beam 22 between the main beam body 7 and the auxiliary beam body 9, and telescopic adjusting structures are arranged between the main beam body 7 and the auxiliary beam body 9 by means of the arrangement of the telescopic beam 22, so that the lower portions of the main beam body 7 can hoist beam bodies with different lengths.
The lifting base plates 29 are movably arranged between the two groups of lifting pieces 10, reinforcing ribs 30 are arranged in the middle of the outer surface of the lifting base plates 29, the lifting pieces 10 and the lifting base plates 29 are driven by the hydraulic rods 28, when the first lifting tool 2 and the second lifting tool 3 perform double-beam lifting operation, the lifting base plates 29 are driven by the hydraulic rods 28 of the lifting pieces 10, the lifting base plates 29 drive the main beam body 7 and the auxiliary beam body 9 to move upwards, and accordingly the heights of the main beam body 7 and the auxiliary beam body 9 are adjusted, and the lower space of the main beam body 7 and the lower space of the auxiliary beam body 9 are adjusted.
The upper surface of the auxiliary beam body 9 is provided with a driving piece 8 for driving the telescopic beam 22, the outer surface of the upper end of the telescopic beam 22 is provided with tooth grooves 23, and the telescopic beam 22 is driven by the driving piece 8 in cooperation with the tooth grooves 23, so that the telescopic beam 22 can be in telescopic adjustment.
The movable support 4 is movably arranged at the lower part of the main beam body 7, the main beam body 7 is movably connected with the movable support 4 through the movable slide block 14, the front support 6 is movably arranged at the end part of the main beam body 7, and the movable support 4 and the front support 6 are utilized to assist in supporting the main beam body 7 and the bridge pier in a dead space state of the main beam body 7, so that the movable support is convenient for moving and lifting the main beam body.
The movable sliding block 14 is in butt joint with the main beam body 7 through a sliding groove, an electric caster wheel 13 is movably mounted on the inner side of the movable sliding block 14, a side rotating frame 12 is movably mounted at one end of the movable sliding block 14, the side rotating frame 12 is movably connected with the movable supporting frame 4 through a linkage rod 11, the side rotating frame 12 and the front supporting frame 6 are driven by a motor, and the side rotating frame 12 is matched with the linkage rod 11 to drive the movable supporting frame 4 to rotate for a certain angle.
The application method of the multi-span continuous operation pier-beam integrated bridge girder erection machine comprises the following specific operation steps:
Step one, a main beam body 7 is moved to the upper part of a precast beam by utilizing a rear driver 1 and a front driver 5, and the use length of the main beam body 7 is adjusted according to the length of the precast beam by utilizing a telescopic beam 22;
Step two, placing the first lifting appliance 2 and the second lifting appliance 3 at the bottom of the precast beam, lifting the first precast beam by using a steel cable 18, and adjusting the use heights of the main beam body 7 and the auxiliary beam body 9 by matching a lifting piece 10 with a hydraulic rod 28 when the second precast beam is lifted;
thirdly, a second precast beam is abutted and fixed by utilizing a sliding clamping block 16, the second precast beam is hoisted through a steel cable 18, the main beam body 7 is moved to an erection area, the movable support frame 4 is supported on a pier, the movable support frame 14 is matched with the movable support frame 14 to enable the main beam body 7 to move forwards, the movable support frame 4 is retracted when the front support frame 6 is supported on the pier, the movable support frame 4 is enabled to replace the front support frame 6, the movable support frame 14 is utilized to enable the main beam body 7 to move forwards continuously, the precast beams are placed in a beam falling area, and two groups of precast beams are released in sequence;
The erection process of the 25 m-span prefabricated part is as follows:
after the bridge girder erection machine is in place, erecting a prefabricated capping beam on the left side of the No. 3 pier, and after the whole machine traverses, erecting a prefabricated capping beam on the right side;
after the 3 # capping beam is erected, erecting 4 # pier prefabricated pier columns, and after the whole machine traverses, erecting each prefabricated pier column in sequence;
after the prefabrication of the pier No. 4 is completed, prefabricating small box girders between the pier No. 1 and the pier No. 2, and after the whole machine traverses, erecting all the prefabrication small box girders in sequence;
The 25m cross-position bridge machine via flow is as follows:
the front and rear lifting trolleys move between the front supporting leg and the middle supporting leg, the rear supporting leg is contracted and emptied, and the front and rear lifting trolleys longitudinally move for 25m and then are supported in place;
The front auxiliary supporting leg, the middle supporting leg and the rear auxiliary supporting leg shrink to empty, the front supporting leg and the rear supporting leg drive the main beam to longitudinally move for 25m integrally to be supported in place, and the front lifting trolley and the rear lifting trolley synchronously retreat;
The front supporting leg is contracted and emptied, and is longitudinally moved for 25m to be supported in place, so that the whole machine via hole is completed.
According to the multi-span continuous operation pier-beam integrated bridge girder erection machine and the use method thereof, when the multi-span continuous operation pier-beam integrated bridge girder erection machine is used, the lifting and adjustment of the main beam body 7 and the auxiliary beam body 9 by the lifting piece 10 are matched, so that the lower parts of the first lifting device 2 and the second lifting device 3 can simultaneously carry out the lifting operation of two groups of beam bodies, the continuity of the operation is improved, when the first lifting device 2 and the second lifting device 3 carry out the double-beam body lifting operation, the lifting base plate 29 is driven by the hydraulic rod 28 of the lifting piece 10, the lifting base plate 29 drives the main beam body 7 and the auxiliary beam body 9 to move upwards, the heights of the main beam body 7 and the auxiliary beam body 9 are adjusted, the lower spaces of the main beam body 7 and the auxiliary beam body 9 are adjusted, the lower parts of the main beam body 7 and the auxiliary beam body 9 can simultaneously contain the two groups of beam bodies, the butt-joint angle sleeve 17 is matched with the butt-joint clamping sleeve 27 to form a binding lifting structure at the upper parts of the first lifting appliance 2 and the second lifting appliance 3, when in use, the two ends of the steel cable 18 are separated by rotating the rotary screw sleeve 24, so that the first lifting appliance 2 and the second lifting appliance 3 are taken down, the steel cable 18 is provided with a screw thread head matched with the rotary screw sleeve 24, therefore, the steel cable 18 can be split-operated by adopting the screw thread structure, after the first lifting appliance 2 and the second lifting appliance 3 are taken down, the first lifting appliance 2 and the second lifting appliance 3 are padded at the lower part of the beam body, after the first lifting appliance 2 and the second lifting appliance 3 are re-fixed, the first beam body is lifted by the steel cable 18, the butt-joint angle sleeve 17 protects the side edge of the beam body, when in use, the sliding clamping blocks 16 are clamped into reserved clamping grooves of the beam body, the clamping pins are inserted into the sliding clamping blocks 16, so that the sliding clamping blocks 16 and the beam bodies are lifted and fixed, meanwhile, according to the width of the beam bodies, the sliding frames 15 can be used for adjusting the distance between the two groups of sliding clamping blocks 16, the bolts are used for fixing, locking and fixing the sliding clamping blocks 16 after adjustment can be used for lifting the beam bodies with different widths, after the double-beam body fixing operation is completed, the bridge girder erection machine is used for moving, and the two groups of beam bodies are put down in sequence, so that the continuous pier-crossing paving operation is completed;
Through the arrangement of the telescopic beams 22, when the multi-span continuous operation pier-beam integrated bridge girder erection machine is used, a telescopic adjusting structure is formed between the main girder body 7 and the auxiliary girder body 9 through the telescopic beams 22, when the bridge girder erection machine performs the pier-crossing moving operation, the whole length of the bridge girder erection machine can be flexibly adjusted according to the distance between piers, the use of the first lifting appliance 2 and the second lifting appliance 3 is matched, the continuous laying operation of the multi-girder body is convenient, when the multi-span continuous operation pier-beam integrated bridge girder erection machine is used, the outer surface of the upper end of the telescopic beams 22 is provided with tooth grooves 23, the driving piece 8 consists of a motor and a gear 20 structure, the telescopic beams 22 are driven by the gear 20 of the driving piece 8 matched with the tooth grooves 23, so that the telescopic beams 22 are subjected to telescopic adjustment, and the arrangement of the telescopic beams 22 is utilized, the whole length of the bridge girder erection machine can be adjusted, the lower part of the main girder body 7 can hoist girder bodies with different lengths, when a cross pier moves, the movable support frame 4 and the front support frame 6 can be utilized to carry out auxiliary support between the main girder body 7 and a bridge pier in a state that the main girder body 7 is in a stagnation state, the movable support frame 7 is convenient to carry out movable hoisting of the girder body, the main girder body 7 is moved to an erection area, the movable support frame 4 is supported on the bridge pier, the movable support frame 4 is matched with the movable slide block 14 to enable the main girder body 7 to continuously move forwards, the front support frame 6 is supported on the bridge pier, the movable support frame 4 is retracted, the movable support frame 4 is used to replace the front support frame 6, the movable slide block 14 is utilized to enable the main girder body 7 to continuously move forwards, the prefabricated girders are placed in a girder falling area, and two groups of prefabricated girders are sequentially released;
Through setting up butt joint angle cover 17, when this multispan continuous operation mound roof beam integration bridge crane uses, utilize butt joint angle cover 17 can optimize the use to first hoist 2 and second hoist 3, the security when lifting first hoist 2 and the hoist 3 binding type roof beam body hoist operation, during the use, because butt joint angle cover 17 adopts L type structural design, make butt joint angle cover 17 can pad between steel cable 18 and precast beam both sides, avoid steel cable 18 direct contact precast beam, prevent precast beam damage, can increase lifting substrate 29 structural strength through the setting of strengthening rib 30 simultaneously, make things convenient for it to carry out double beam body hoist operation, back driver 1 and front driver 5's lower part all moves through the universal wheel, make the bridge crane can carry out the removal operation of arbitrary position.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. The multi-span continuous operation pier-beam integrated bridge girder erection machine is characterized by comprising a main girder body (7) and an auxiliary girder body (9), wherein the auxiliary girder body (9) is movably arranged on the outer surface of one end of the main girder body (7), two groups of rear drivers (1) are arranged at the lower part of the auxiliary girder body (9), two groups of front drivers (5) are arranged at the lower part of the main girder body (7), the auxiliary girder body (9) and the rear drivers (1) are movably connected with each other through lifting pieces (10), a first lifting appliance (2) and a second lifting appliance (3) which are used for being matched with the lifting pieces (10) are movably arranged at the lower part of the main girder body (7), the upper parts of the first lifting appliance (2) and the second lifting appliance (3) are connected with each other through steel cable (18), a butt joint angle sleeve (17) is arranged at one side of the steel cable (18), and the first lifting appliance (2) and the second lifting appliance (3) are movably provided with a first lifting appliance (2) and a second lifting appliance (3) which are used for being matched with the lifting pieces (16) of the first lifting appliance and the second lifting appliance (3) which are used for being provided with the first prefabricated part and the second lifting appliance (3) which are used for being provided with the second lifting appliance;
The whole of the steel cable (18) is of a two-section structure, the whole of the butt joint angle sleeve (17) is L-shaped, two groups of rotary screw sleeves (24) and a butt joint clamping sleeve (27) are arranged on one side of the butt joint angle sleeve (17), the two groups of rotary screw sleeves (24) are movably arranged at the upper end and the lower end of the butt joint clamping sleeve (27), a fastening bolt (25) is movably sleeved on one side of the butt joint clamping sleeve (27), and a base plate (26) is arranged on one side of the butt joint angle sleeve (17);
A telescopic beam (22) is movably arranged between the main beam body (7) and the auxiliary beam body (9), a telescopic groove matched with the telescopic beam (22) is formed in the inner side of the auxiliary beam body (9), and telescopic rods (21) are arranged on two sides, located on the telescopic beam (22), between the main beam body (7) and the auxiliary beam body (9);
A lifting substrate (29) is movably arranged between the two groups of lifting pieces (10), a reinforcing rib (30) is arranged in the middle of the outer surface of the lifting substrate (29), and the lifting pieces (10) and the lifting substrate (29) are driven by a hydraulic rod (28);
The movable support frame (4) is movably mounted at the lower part of the main beam body (7), the main beam body (7) is movably connected with the movable support frame (4) through a movable sliding block (14), and the front support frame (6) is movably mounted at the end part of the main beam body (7).
2. The multi-span continuous operation pier-beam integrated bridge girder erection machine according to claim 1, wherein the first lifting appliance (2) and the sliding clamping block (16) and the second lifting appliance (3) and the sliding clamping block (16) are movably abutted through a sliding frame (15), a sliding groove is formed in the inner side of the sliding frame (15), and a bolt body is arranged between the sliding clamping block (16) and the sliding frame (15).
3. The multi-span continuous operation pier-beam integrated bridge girder erection machine according to claim 1, wherein a winding rod (19) is arranged at the upper end of the steel cable (18), a gear (20) is arranged in the middle of the outer surface of the winding rod (19), and the two groups of winding rods (19) are in transmission connection through the gear (20) in cooperation with a chain.
4. The multi-span continuous operation pier-beam integrated bridge girder erection machine according to claim 1, wherein a driving piece (8) for driving the telescopic beam (22) is arranged on the upper surface of the auxiliary girder body (9), and tooth grooves (23) are formed on the outer surface of the upper end of the telescopic beam (22).
5. The multi-span continuous operation pier-beam integrated bridge girder erection machine according to claim 1, wherein the movable sliding block (14) is in butt joint with the main girder body (7) through a sliding groove, an electric caster (13) is movably mounted on the inner side of the movable sliding block (14), a side rotating frame (12) is movably mounted at one end of the movable sliding block (14), and the side rotating frame (12) is movably connected with the movable supporting frame (4) through a linkage rod (11).
6. The method for using the multi-span continuous operation pier-beam integrated bridge girder erection machine according to claim 1, which is characterized by comprising the following specific operation steps:
Step one, a main beam body (7) is moved to the upper part of a precast beam by utilizing a rear driver (1) and a front driver (5), and the use length of the main beam body (7) is adjusted according to the length of the precast beam by utilizing a telescopic beam (22);
Step two, arranging a first lifting appliance (2) and a second lifting appliance (3) at the bottom of the precast beam, lifting the first precast beam by using a steel cable (18), and adjusting the use heights of the main beam body (7) and the auxiliary beam body (9) by matching a lifting piece (10) with a hydraulic rod (28) when the second precast beam is lifted;
step three, utilize slip fixture block (16) butt joint fixed second precast beam, hoist the second precast beam through steel cable (18), remove girder (7) to erect the region, support removal strut (4) on the pier, cooperation removal slider (14) makes girder (7) remove forward, support preceding strut (6) on the pier again, pack up and remove strut (4), make and remove strut (4) to replace preceding strut (6), utilize and remove slider (14) and make girder (7) continue the antedisplacement, place the precast beam in the girder region that falls, release two sets of precast beams in proper order.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424265A (en) * | 2019-07-09 | 2019-11-08 | 宁波一帆起重吊装有限公司 | A kind of bridge prefabrication component is across the direct hanging apparatus of interior beam and hoisting method |
| CN111910531A (en) * | 2020-09-22 | 2020-11-10 | 河南省中原奥起实业有限公司 | Bridge erecting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01204830A (en) * | 1988-02-10 | 1989-08-17 | Tochigi Fuji Ind Co Ltd | Hub clutch |
| CN112854008A (en) * | 2021-03-03 | 2021-05-28 | 浙江交工集团股份有限公司 | Prefabricated bridge pier and beam integrated bridge girder erection machine and construction method thereof |
| CN116289573A (en) * | 2023-02-14 | 2023-06-23 | 保利长大工程有限公司 | Multi-span continuous operation pier-beam integrated bridge girder erection machine and rapid bridge girder erection method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424265A (en) * | 2019-07-09 | 2019-11-08 | 宁波一帆起重吊装有限公司 | A kind of bridge prefabrication component is across the direct hanging apparatus of interior beam and hoisting method |
| CN111910531A (en) * | 2020-09-22 | 2020-11-10 | 河南省中原奥起实业有限公司 | Bridge erecting method |
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