CN115404778A - Long-span steel box girder pushing system for crossing existing road - Google Patents
Long-span steel box girder pushing system for crossing existing road Download PDFInfo
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- CN115404778A CN115404778A CN202210878955.1A CN202210878955A CN115404778A CN 115404778 A CN115404778 A CN 115404778A CN 202210878955 A CN202210878955 A CN 202210878955A CN 115404778 A CN115404778 A CN 115404778A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The application relates to a large-span steel box girder pushing system for crossing an existing road, and relates to the technical field of building construction. The supporting pile is fixed on the ground, a pushing pile is arranged on the ground, one end, far away from the ground, of the pushing pile is located above the road, and a supporting plate is connected to the pushing pile in a rotating mode. Be provided with deployment mechanism in the backup pad, deployment mechanism includes drive assembly and supporting component, and drive assembly pushes away a pile and be connected, and supporting component links to each other with the backup pad, and drive assembly removes, and drive supporting component rotates, drives the backup pad rotation. The pushing pile has the effect that the pushing pile is suitable for pushing the large-span steel box girder crossing roads with different widths.
Description
Technical Field
The application relates to the field of building construction, in particular to a large-span steel box girder pushing system for crossing an existing road.
Background
The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. With the expansion of the scale of highway construction in China, the construction of the highway in the three-dimensional crossing way and the busy highway is more and more, and various bridge structures with large span and large tonnage are generated at the same time. The incremental launching construction of the bridge is favored by bridge builders due to the simple construction method, safety, reliability, economic application and small construction interference.
In the correlation technique, when the construction strides across the long-span steel box girder that has the road, will splice some steel box girders earlier and fix on ground, hoist to the support stake that will splice the completion after that, splice into one section steel box girder on the support stake of road both sides, this moment, the junction of the steel box girder of road both sides is located directly over the road, need be provided with the auxiliary stay stake on ground, can form a construction platform directly over the road, place the junction of the steel box girder of road both sides on the auxiliary stay stake, realize the top to the steel box girder, the workman can realize the concatenation installation to two adjacent steel box girder junctions on the auxiliary stay stake, the construction that has the long-span steel box girder of road is accomplished.
The related art described above has the following drawbacks: the auxiliary supporting piles are fixed in size and are not suitable for pushing the large-span steel box girders crossing roads with different widths, so that improvement is needed.
Disclosure of Invention
In order to improve the problem that the auxiliary supporting pile is not suitable for pushing the long-span steel box girder crossing roads with different widths, the application provides a long-span steel box girder pushing system crossing the existing roads.
The application provides a stride across big span steel box girder top pushes away system of existing road adopts following technical scheme:
the utility model provides a stride across long span steel box girder top pushes away system of existing road, is used for supporting the support stake of steel box girder including being located road both sides, support the stake and fix subaerial, subaerial being provided with top pushes away the stake, top pushes away the stake and keeps away from the one end on ground and is located the top of road, it is connected with the backup pad to rotate on the top to push away the stake, be provided with deployment mechanism in the backup pad, deployment mechanism includes drive assembly and supporting component, drive assembly pushes away the stake with top and is connected, the supporting component links to each other with the backup pad, drive assembly removes, drives the supporting component rotates, drives the backup pad is rotatory.
Through adopting above-mentioned technical scheme, push away the stake and place subaerial, remove to the direction that is close to the road after that, until pushing away the partial up end of stake and being located the region of the top of road, hoist the steel box girder to the support stake of road both sides after that, at this moment, the junction of the steel box girder of road both sides is located directly over the road, and place on pushing away the stake, realize the top to the steel box girder, the workman can realize the concatenation installation to two adjacent steel box girder junctions on pushing away the stake after that, the construction that has the big span steel box girder of road is accomplished. After the width widen of road, the tip of steel box girder on the road both sides support stake can't be accepted only by the up end that pushes away the stake, at this moment, push away the stake tiling subaerial, utilize drive assembly to remove after that, promote the supporting component and rotate, make the backup pad use backup pad and push away the stake junction as the direction rotation that the axial kept away from the top that pushes away the stake, one side that keeps away from the top that pushes away the stake and the up end that pushes away the stake are in the coplanar, at this moment, push away the stake and vertically place subaerial, and to the direction removal that is close to the road, move to suitable position, make the backup pad be located the top region of road, thereby make the length that backup pad and top that pushes away the upper end formation of stake be enough to accept the steel box girder tip on the road both sides support stake, can accomplish the connection to the steel box girder that is located the road top, compare in the support the end that only leans on the top that pushes away the stake supports the road both sides steel box girder tip on, be more applicable to the road top steel box girder connection of different width is fixed, the practicality is higher.
Optionally, the driving assembly includes a propelling driving part, a driving plate and a driving rod, the driving plate is slidably connected with the pushing pile, the propelling driving part is connected with the pushing pile, an output end of the propelling driving part is connected with the driving plate and used for driving the driving plate to move in the width direction of the pushing pile, the driving rod is perpendicular to the driving plate and fixedly connected with the driving plate, a driving groove for the driving rod to be inserted is formed in one side, close to the pushing pile, of the supporting plate, and the driving rod is inserted into the driving groove, so that the supporting plate is parallel to the ground.
By adopting the technical scheme, when the road is wide, the propelling driving part is started to drive the driving plate to move towards the direction close to the supporting plate until the driving plate abuts against the supporting plate, and the supporting plate is propelled towards the direction far away from the pushing pile, so that one end of the supporting plate rotates towards the direction far away from the pushing pile by taking the joint of the supporting plate and the pushing pile as the axial direction, in the moving process of the driving plate, the driving rod also moves towards the direction close to the supporting plate, when the driving rod is separated from the pushing pile and is positioned between the pushing pile and the supporting plate, at the moment, the propelling plate continues to drive the driving rod to move towards the direction far away from the pushing pile, the propelling rod is inserted into the driving groove, the end part of the driving rod abuts against the inner wall of one side, far away from the pushing pile, of the driving groove, a force propelling towards the direction far away from the pushing pile is applied to the inner wall of the driving groove, so that the side, far away from the pushing pile, of the supporting plate and the upper end face of the pushing pile are positioned in the same plane, at the moment, the driving plate is stopped, the driving plate stops sliding, the driving rod plays a limiting effect on the supporting plate, so that the supporting plate is not easy to move towards the direction close to the pushing pile, the supporting plate, the overturning and the supporting plate is fixed, and the operation is convenient and convenient.
Optionally, the supporting component includes two supporting rods, one end of one of the supporting rods is rotatably connected to one end of the other supporting rod, the other end of the one supporting rod is rotatably connected to the pushing pile, the other end of the other supporting rod, which is far away from the pushing pile, is rotatably connected to the supporting plate, the supporting rod is connected to a fixing component, and the supporting rod rotates to drive the fixing component to move.
By adopting the technical scheme, when the driving plate drives the driving rod to move towards the direction far away from the pushing pile, one end of the supporting plate close to the bottom of the pushing pile rotates in the direction far away from the pushing rotation by taking the joint of the supporting plate and the pushing pile as the axial direction, the supporting rod is driven to move towards the direction far away from the pushing pile, and the supporting rod rotates, so that the two supporting rods move towards the direction far away from each other.
Optionally, fixed subassembly includes telescopic link, joint spare and two transfer lines, two the transfer line rotates to be connected, two the transfer line uses the telescopic link as the axial symmetry, the one end and two of telescopic link the junction of bracing piece rotates to be connected, the other end and two the junction of transfer line rotates to be connected, the one end that the telescopic link was kept away from to the transfer line rotates with the bracing piece to be connected, joint spare is located the telescopic link for the direction removal of restriction telescopic link to keeping away from the bracing piece.
Through adopting above-mentioned technical scheme, when the backup pad removes to the direction of keeping away from the top and pushing away the stake, drive the bracing piece and rotate, make two bracing pieces remove to the direction of keeping away from each other, thereby make the junction of two transmission rods remove to the junction of being close to two bracing pieces, then make the telescopic link shrink, the one end that two bracing piece junctions were kept away from to the telescopic link removes to the junction of being close to two bracing pieces, when the telescopic link shrinks to extreme position, two bracing pieces are in same straight line, utilize joint spare, make the telescopic link can not remove to the direction of keeping away from the bracing piece, thereby make the bracing piece can not take place to rotate, namely two bracing pieces remain the state on same straight line all the time, and then make the line of two bracing pieces and the lateral wall and the backup pad of top and push away the stake maintain triangular state all the time, make the backup pad can not take place to rotate with the junction of backup pad and top and push away the stake, namely the backup pad remains throughout and pushes away the stake lateral wall vertically state, further increased the steadiness of backup pad structure.
Optionally, the telescopic link includes dead lever and fixed cover, the dead lever is inserted and is established in fixed cover, fixed cover and two the junction of bracing piece rotates to be connected, dead lever and two the junction of drive lever rotates to be connected, joint spare includes fixed block and fixed spring, fixed block and fixed spring all locate in the fixed cover, fixed block and fixed cover sliding connection, fixed spring is used for impeling the fixed block to the direction that is close to the dead lever, the lateral wall of dead lever is provided with and supplies the fixed block to insert the fixed orifices of establishing, one side that fixed cover diapire was kept away from to the fixed block is provided with the spigot surface, the spigot surface is close to the one end of locating lever and sets up to the direction slope of being close to fixed cover diapire.
By adopting the technical scheme, when the supporting plate rotates in the direction away from the pushing pile, the two supporting rods move in the direction away from each other to drive the two transmission rods to move in the direction close to the joint of the two supporting rods, namely, the joint of the two transmission rods extrudes the fixed rod in the direction close to the inner bottom wall of the fixed sleeve, when the fixed rod is abutted against the guide surface, the guide surface plays a role of guiding and extruding the fixed spring to ensure that the fixed block moves in the direction away from the fixed rod, namely, the side wall of the fixed sleeve has no bulge, the fixed rod is convenient to slide in the fixed sleeve, when one end of the fixed rod away from the joint of the two transmission rods is abutted against the inner bottom wall of the fixed sleeve, the fixed hole also moves to the fixed block, one end of the fixed block, which is away from the fixed spring, is separated from the side wall of the fixed rod, fixing spring loses the extrusion force promptly, resume deformation, impel the fixed block to the direction that is close to the dead lever, insert until the fixed block and establish into the fixed orifices, the inner wall of fixed orifices and the lateral wall looks butt of fixed block, play limiting displacement, make the dead lever can not remove in fixed cover, the whole length of telescopic link can not change promptly, make the transfer line can not take place to rotate, thereby make two bracing pieces can not take place to rotate, remain to be located same straight line state throughout, and then make the line of two bracing pieces and the lateral wall that pushes away the stake and the backup pad maintain triangular state throughout, make the backup pad can not take place to rotate as the axle with the junction that backup pad and push away the stake, the backup pad remains throughout promptly and pushes away stake lateral wall vertically state, supporting plate structure's steadiness has further been increased.
Optionally, be provided with the extension subassembly in the backup pad, the extension subassembly includes extension board and shrink spring, the backup pad is kept away from the one end that pushes away the stake and is provided with the hole of sliding, the hole of sliding communicates with the drive groove, the extension board is inserted and is established in the hole of sliding to extend the drive inslot, the extension board removes along the length direction in drive groove, shrink spring locates in the hole of sliding for with the extension board to the direction pulling that is close to the top and pushes away the stake.
Through adopting above-mentioned technical scheme, when the actuating lever promotes the backup pad and removes to the direction of keeping away from the top and pushing away the stake, the actuating lever is inserted and is established into the drive inslot, promote the backup pad, when making the backup pad perpendicular with the lateral wall that pushes away the stake, the length of backup pad is also not enough to support the road both sides and supports the tip of steel box girder on the stake, start the propulsion driving piece, make the propulsion board continue to drive the actuating lever and remove to the direction of keeping away from the top and pushing away the stake, until actuating lever and extension board looks butt, and pulling shrink spring, with extension board to keeping away from the direction that pushes away the top and push away the stake and promote, make the extension board stretch out the backup pad, thereby the whole length of backup pad has been increased, at this moment, stop to impel the driving piece, make the extension board stretch out the length of backup pad fixed, and then make the length that lies in road top region be enough to accept the tip of steel box girder on the road both sides support the stake, be applicable to widening the connection of road top fixed, the practicality is higher.
Optionally, an adjusting mechanism is arranged on the pushing pile, the adjusting mechanism comprises a pushing assembly and a limiting assembly, the pushing pile comprises a positioning pile and a lifting pile, the positioning pile is fixed on the ground, the lifting pile is inserted in the positioning pile and is in sliding connection with the positioning pile, the pushing assembly is connected with the positioning pile, the limiting assembly is connected with the lifting pile, the pushing assembly rotates to drive the lifting pile to move, and the limiting assembly is used for limiting the lifting pile to move towards the direction close to the ground.
Through adopting above-mentioned technical scheme, when the road is higher from ground, utilize and impel the subassembly, will promote the stake and impel to the direction of keeping away from ground, one end that keeps away from ground until promoting the stake is located one side that ground was kept away from to the road, at this moment, spacing subassembly plays the limiting displacement, make the promotion stake can not remove to the direction that is close to ground, even the rigidity that must promote the stake, realize pushing away the change of the overall height that pushes away the stake, be applicable to the construction to the steel box girder of the road top of co-altitude, the practicality is higher.
Optionally, the propelling component includes a propelling rod, one end of the propelling rod is inserted into the positioning pile and is abutted against one end of the lifting pile close to the ground, the other end of the propelling rod is obliquely arranged in a direction away from the ground, and the propelling rod is rotatably connected with the positioning pile.
Through adopting above-mentioned technical scheme, when the road is higher from the height on ground, the one end of keeping away from the spud with the pushing ram extrudees to the direction that is close to ground for the one end that the pushing ram is located the spud rotates for the direction that ground was kept away from to the axial with the junction of pushing ram and spud, drives promptly and promotes the stake and remove to the direction of keeping away from ground, realizes pushing away the whole height rising of stake, the simple operation.
Optionally, spacing subassembly includes a plurality of butt joint pieces and a plurality of stopper, and is a plurality of butt joint piece is along the length direction evenly distributed of lifting pile on the lateral wall of lifting pile, and is a plurality of the stopper is along the length direction evenly distributed of spud on the inner wall of spud, the stopper passes through the torsional spring and links to each other with the inner wall of spud, the stopper is inserted and is established adjacently between the butt joint piece.
Through adopting above-mentioned technical scheme, when the propulsion pole promotes the promotion stake when keeping away from the direction removal on ground, butt piece and stopper looks butt, twist reverse the torsional spring, make the stopper with the stopper to the direction removal of keeping away from the promotion stake, the promotion stake continues to move, make butt piece and stopper phase separation, the torsional spring resumes the case and becomes, the one end that makes the stopper keep away from the spud inner wall uses the torsional spring to rotate as the direction that the spud inner wall was kept away from to the axial, insert and establish between adjacent butt piece, after promotion stake system removes, stopper and butt piece are close to a lateral wall looks butt on ground, play the limiting displacement, make the butt piece can not remove to the direction that is close to ground, even make the promotion stake can not remove to the direction that is close to ground, thereby make the promotion stake internal fixation in the spud, and then make the whole highly fixed that pushes away the top of the top of road, the practicality is better.
Optionally, a stop block is arranged on the side wall of the supporting plate along the length direction of the supporting plate, and one side of the stop block, which is far away from the supporting plate, is inclined towards the direction far away from the ground ears.
Through adopting above-mentioned technical scheme, the dog plays limiting displacement for the steel box girder is placed in the backup pad after, is difficult for removing out the backup pad along the width direction of backup pad, has increased the stability that the steel box girder was placed in the backup pad.
In summary, the present application includes at least one of the following benefits:
1. the pushing piles are placed on the ground and move towards the direction close to the road until the upper end faces of the pushing piles are located in the area above the road, the steel box girders are hoisted to the supporting piles on the two sides of the road, at the moment, the joints of the steel box girders on the two sides of the road are located right above the road and placed on the pushing piles, pushing of the steel box girders is achieved, then workers can splice and install the joints of the two adjacent steel box girders on the pushing piles, and construction of the large-span steel box girders with the road is completed. When the width of a road is widened, the end parts of the steel box girders on the supporting piles at two sides of the road cannot be received only by the upper end surfaces of the pushing piles, at the moment, the pushing piles are tiled on the ground, then the driving assembly is used for moving, the supporting assembly is pushed to rotate, the supporting plate is made to rotate in the direction that the connecting parts of the supporting plate and the pushing piles are axially far away from the pushing piles until one side of the supporting plate far away from the pushing piles and the upper end surfaces of the pushing piles are in the same plane, at the moment, the pushing piles are vertically placed on the ground and move to the direction close to the road and move to the proper positions, so that the supporting plate is located in the upper area of the road, the length formed by the upper end surfaces of the supporting plate and the pushing piles is enough to receive the end parts of the steel box girders on the supporting piles at two sides of the road, the connection of the steel box girders above the road can be completed, compared with the case girders on the supporting piles at two sides of the road can be supported only by the upper end surfaces of the pushing piles, the supporting piles, the steel box girders above the road can be more suitable for connection and fixation of different widths of the steel box girders above the road, and the practicability is higher;
2. when the road is wide, the propelling driving part is started to drive the driving plate to move towards the direction close to the supporting plate until the driving plate is abutted with the supporting plate, and the supporting plate is propelled towards the direction far away from the pushing pile, so that one end of the supporting plate rotates towards the direction far away from the pushing pile by taking the joint of the supporting plate and the pushing pile as the axial direction, in the moving process of the driving plate, the driving rod also moves towards the direction close to the supporting plate, when the driving rod is separated from the pushing pile and is positioned between the pushing pile and the supporting plate, at the moment, the propelling plate continues to drive the driving rod to move towards the direction far away from the pushing pile, the propelling rod is inserted into the driving groove, the end part of the driving rod is abutted with the inner wall of one side of the driving groove far away from the pushing pile, and applies a propelling force towards the direction far away from the pushing pile to the inner wall of the driving groove, so that the side of the supporting plate far away from the pushing pile and the upper end face of the pushing pile are positioned in the same plane, at the moment, the propelling driving plate is stopped, the driving plate stops sliding, the driving plate plays a limiting role, so that the supporting plate is not easy to move towards the direction close to realize the overturning fixation of the supporting plate, and the operation is convenient and fast.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is a schematic structural view for showing the connection relationship between the driving rod and the supporting plate in the embodiment of the present application;
FIG. 3 is a schematic structural diagram illustrating a connection relationship between a support bar and a support plate according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram for illustrating a connection relationship between a support rod and a transmission rod in an embodiment of the present application;
FIG. 5 is an enlarged view of the embodiment of the present application at A in FIG. 4;
FIG. 6 is a schematic structural diagram for showing a connection relationship between the abutting block and the limiting block in the embodiment of the present application;
fig. 7 is an enlarged view of the embodiment of the present application at B in fig. 6.
In the figure: 1. supporting piles; 2. pushing the pile; 21. positioning a pile; 22. lifting piles; 3. a support plate; 30. a drive slot; 31. a sliding hole; 4. a deployment mechanism; 41. a drive assembly; 411. propelling the driving member; 412. a drive plate; 413. a drive rod; 42. a support assembly; 421. a support bar; 5. a fixing assembly; 51. a telescopic rod; 511. fixing the rod; 5110. a fixing hole; 512. fixing a sleeve; 5120. mounting holes; 52. a clamping piece; 521. a fixed block; 5210. a guide surface; 522. a fixed spring; 53. a transmission rod; 6. an extension assembly; 61. an extension plate; 62. a retraction spring; 7. an adjustment mechanism; 71. a propulsion assembly; 711. a push rod; 72. a limiting component; 721. a butting block; 722. a limiting block; 8. a torsion spring; 9. and a stop block.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses a long-span steel box girder pushing system for crossing an existing road. Referring to fig. 1 and 2, the long-span steel box girder jacking system spanning the existing road comprises supporting piles 1 which are positioned on two sides of the road and used for supporting the steel box girder, the supporting piles 1 are fixed on the ground, jacking piles 2 are arranged on the ground, one ends, far away from the ground, of the jacking piles 2 are positioned above the road, supporting plates 3 are connected to the jacking piles 2 in a rotating mode, stop blocks 9 are fixed to the two sides, along the length direction of the supporting plates 3, of the supporting plates 3 through welding machines, and one sides, far away from the supporting plates 3, of the stop blocks 9 are obliquely arranged in the direction far away from the ears on the ground. When backup pad 3 overturns to parallel with ground, one side that backup pad 3 kept away from ground promptly and the up end that pushes away stake 2 are in the coplanar, and backup pad 3 is located the top region on road, places the steel box roof beam in backup pad 3, and dog 9 plays limiting displacement, and the steel box roof beam is difficult to remove backup pad 3 along the width direction of backup pad 3, and the whereabouts is pounded bad road of transferring, has increased the stability that the steel box roof beam was placed in backup pad 3.
Referring to fig. 1 and 2, an unfolding mechanism 4 is arranged on the support plate 3, the unfolding mechanism 4 includes a driving assembly 41, the driving assembly 41 includes a propelling driving member 411, a driving plate 412 and a driving rod 413, the driving plate 412 is slidably connected to the pushing pile 2, the propelling driving member 411 is connected to the pushing pile 2 through a bolt, in the embodiment of the present application, the propelling driving member 411 employs an air cylinder, an output end of the propelling driving member 411 is welded and fixed to the driving plate 412, the driving plate 412 is driven to move in a width direction of the pushing pile 2, the driving rod 413 is perpendicular to the driving plate 412 and is integrally formed with the driving plate 412, a driving groove 30 is formed in a side of the support plate 3 close to the pushing pile 2 along a length direction of the support plate 3, and the driving rod 413 is inserted into the driving groove 30, so that the support plate 3 is parallel to the ground.
Referring to fig. 3 and 4, the unfolding mechanism 4 further includes a supporting assembly 42, the supporting assembly 42 includes two supporting rods 421, one end of one supporting rod 421 is rotatably connected to one end of the other supporting rod 421, the other end of the other supporting rod 421 is rotatably connected to the side wall of the pushing pile 2, and one end of the other supporting rod 421 away from the pushing pile 2 is rotatably connected to the supporting plate 3.
When the road is wide, the propelling driving member 411 is started to drive the driving plate 412 to move towards the direction close to the supporting plate 3 until the driving plate 412 abuts against the supporting plate 3, and the supporting plate 3 is propelled towards the direction far away from the pushing pile 2, so that one end of the supporting plate 3 rotates in the direction far away from the pushing pile 2 by taking the joint of the supporting plate 3 and the pushing pile 2 as the axial direction, the supporting rod 421 is driven to move towards the direction far away from the pushing pile 2, the supporting rod 421 rotates, so that the two supporting rods 421 move towards the direction far away from each other, in the moving process of the driving plate 412, the driving rod 413 also moves towards the direction close to the supporting plate 3, when the driving rod 413 is separated from the pushing pile 2 and is located between the pushing pile 2 and the supporting plate 3, at this time, the propelling plate continues to drive the driving rod 413 to move towards the direction far away from the pushing pile 2, so that the propelling rod 711 is inserted into the driving groove 30, the end of the driving rod 413 abuts against the inner wall of one side of the driving groove 30 far away from the pushing pile 2, and applies a force pushing in the direction far away from the pushing pile 2 to the inner wall of the driving groove 30, so that one side of the supporting plate 3 far away from the pushing pile 2 and the upper end surface of the pushing pile 2 are located in the same plane, that is, when one side of the supporting plate 3 far away from the pushing pile 2 and the upper end surface of the pushing pile 2 are in the same plane, the two supporting rods 421 are in the same straight line, and the connecting line of the two supporting rods 421, the pushing pile 2 and the supporting plate 3 form a right triangle, that is, the included angle between the supporting plate 3 and the side wall of the pushing pile 2 is fixed, so that the supporting plate 3 is not easy to rotate, that the supporting plate 3 always keeps in a state perpendicular to the side wall of the pushing pile 2, at this time, the driving member 411 is stopped to push the driving plate 412 to stop sliding, and the driving rod 413 plays a limiting role on the supporting plate 3, the supporting plate 3 is not easy to move in the direction close to the pushing pile 2, the supporting plate 3 is turned and fixed, and the operation is convenient and fast.
Referring to fig. 4 and 5, a fixing assembly 5 is connected to the support rod 421, the fixing assembly 5 includes a telescopic rod 51, a clamping member 52 and two transmission rods 53, the two transmission rods 53 are rotatably connected, the two transmission rods 53 are axisymmetric with the telescopic rod 51, one end of the telescopic rod 51 is rotatably connected to a joint of the two support rods 421, the other end of the telescopic rod 51 is rotatably connected to a joint of the two transmission rods 53, one end of the transmission rod 53, which is far away from the telescopic rod 51, is rotatably connected to the support rod 421, and the clamping member 52 is located in the telescopic rod 51 and is used for limiting the telescopic rod 51 from moving in a direction far away from the support rod 421.
Referring to fig. 4 and 5, the telescopic rod 51 includes a fixing rod 511 and a fixing sleeve 512, the fixing rod 511 is inserted into the fixing sleeve 512, the fixing sleeve 512 is rotatably connected to a joint of the two support rods 421, one end of the fixing rod 511, which is away from the fixing sleeve 512, is rotatably connected to a joint of the two transmission rods 53, the clamping member 52 includes a fixing block 521 and a fixing spring 522, an installation hole 5120 is formed in the inner wall of the fixing sleeve 512, the fixing block 521 is inserted into the installation hole 5120, one end of the fixing spring 522 is welded and fixed to the inner wall of the installation hole 5120, which is away from the central axis of the fixing sleeve 512, the other end of the fixing spring is welded and fixed to one side of the fixing block 521, which is away from the central axis of the fixing sleeve 512, a fixing hole 5110 is formed in the side wall of the fixing rod 511, a guide surface 5210 is cut on one side of the fixing block 521, which is away from the bottom wall of the fixing sleeve 512, and one end of the guide surface 5210, which is close to the bottom wall of the fixing rod, which is close to the fixing sleeve 512, is inclined.
Referring to fig. 3 and 5, when the supporting plate 3 rotates in a direction away from the pushing pile 2, the two supporting rods 421 move in a direction away from each other, so as to drive the two driving rods 53 to move in a direction close to the joint of the two supporting rods 421, namely, the connection between the two transmission rods 53 presses the fixing rod 511 toward the inner bottom wall of the fixing sleeve 512, when the fixing rod 511 abuts against the guiding surface 5210, the guiding surface 5210 acts as a guide, pressing the fixing spring 522, so that the fixing block 521 moves away from the fixing rod 511, i.e., the side wall of the fixing sleeve 512 has no protrusion, which is convenient for the fixing rod 511 to slide in the fixing sleeve 512, when the end of the fixing lever 511 remote from the junction of the two transmission levers 53 abuts against the inner bottom wall of the fixing sleeve 512, the fixing hole 5110 is also moved to the fixing block 521, the end of the fixing block 521 far away from the fixing spring 522 is separated from the sidewall of the fixing rod 511, namely, the fixing spring 522 loses the extrusion force and recovers the deformation, the fixing block 521 is pushed towards the direction close to the fixing rod 511 until the fixing block 521 is inserted into the fixing hole 5110, the inner wall of the fixing hole 5110 is abutted with the side wall of the fixing block 521, so as to play a role of limiting, so that the fixing rod 511 cannot move in the fixing sleeve 512, i.e., the overall length of the telescopic rod 51 does not change, so that the transmission rod 53 does not rotate, so that the two support rods 421 can not rotate and always keep on the same straight line, thereby the connecting line of the two support rods 421, the side wall of the pushing pile 2 and the support plate 3 are always kept in a triangular state, the support plate 3 can not rotate by taking the connecting part of the support plate 3 and the pushing pile 2 as a shaft, namely, the supporting plate 3 is always kept in a state of being vertical to the side wall of the pushing pile 2, and the structural stability of the supporting plate 3 is further improved.
Referring to fig. 2 and 3, an extension assembly 6 is arranged on the support plate 3, the extension assembly 6 includes an extension plate 61 and a contraction spring 62, a sliding hole 31 is formed in one end, far away from the pushing pile 2, of the support plate 3 along the length direction of the support plate 3, the sliding hole 31 is communicated with the driving groove 30, the extension plate 61 is inserted in the sliding hole 31 and extends into the driving groove 30, the extension plate 61 moves along the length direction of the driving groove 30, one end of the contraction spring 62 and one side inner wall, close to the pushing pile 2, of the sliding hole 31 are welded and fixed, the other end of the contraction spring and one end, close to the pushing pile 2, of the extension plate 61 are welded and fixed, and the extension plate 61 is pulled towards the direction close to the pushing pile 2.
When the driving rod 413 pushes the supporting plate 3 to move in the direction far away from the pushing pile 2, the driving rod 413 is inserted into the driving groove 30, the supporting plate 3 is pushed, so that the supporting plate 3 is perpendicular to the side wall of the pushing pile 2, the length of the supporting plate 3 is not enough to support the end part of the steel box girder on the road two-side supporting pile 1, the pushing driving piece 411 is started, so that the pushing plate continues to drive the driving rod 413 to move in the direction far away from the pushing pile 2 until the driving rod 413 abuts against the extending plate 61, and the contraction spring 62 is pulled to push the extending plate 61 in the direction far away from the pushing pile 2, so that the extending plate 61 extends out of the supporting plate 3, so that the overall length of the extending plate 61 extending out of the supporting plate 3 is increased, at the moment, the pushing driving piece 411 is stopped, so that the length of the extending plate 61 extending out of the supporting plate 3 is fixed, and the length in the area above the road is enough to support the end part of the steel box girder on the road two-side supporting piles 1, and the connecting and fixing device is suitable for the steel box girder above the road which is widened.
Referring to fig. 2 and 6, the pushing pile 2 includes a positioning pile 21 and a lifting pile 22, the positioning pile 21 is fixedly placed on the ground, the lifting pile 22 is inserted into the positioning pile 21 and is slidably connected with the positioning pile 21, an adjusting mechanism 7 is arranged on the pushing pile 2, the adjusting mechanism 7 includes a propelling component 71, the propelling component 71 includes a propelling rod 711, one end of the propelling rod 711 is inserted into the positioning pile 21 and is abutted against one end of the lifting pile 22 close to the ground, the other end of the propelling rod 711 is obliquely arranged in the direction far away from the ground, and the propelling rod 711 is rotatably connected with the side wall of the positioning pile 21.
Referring to fig. 6 and 7, the adjusting mechanism 7 further includes a limiting assembly 72, the limiting assembly 72 includes a plurality of abutting blocks 721 and a plurality of limiting blocks 722, the plurality of abutting blocks 721 are uniformly distributed on the side wall of the lift pile 22 along the length direction of the lift pile 22, the plurality of limiting blocks 722 are uniformly distributed on the inner wall of the positioning pile 21 along the length direction of the positioning pile 21, the limiting blocks 722 are connected with the inner wall of the positioning pile 21 through torsion springs 8, and the limiting blocks 722 are inserted between adjacent abutting blocks 721.
When the road is higher than the ground, the end of the pushing rod 711 away from the positioning pile 21 is extruded towards the direction close to the ground, so that the end of the pushing rod 711 in the positioning pile 21 rotates in the direction away from the ground by taking the joint of the pushing rod 711 and the positioning pile 21 as the axial direction, i.e. the lifting pile 22 is driven to move towards the direction away from the ground, the abutting block 721 is abutted with the limiting block 722, the torsion spring 8 is twisted, the limiting block 722 moves towards the direction away from the lifting pile 22 by taking the limiting block 722, the lifting pile 22 continues to move, the abutting block 721 is separated from the limiting block 722, the torsion spring 8 restores the box shape, the end of the limiting block 722 away from the inner wall of the positioning pile 21 rotates in the direction away from the inner wall of the positioning pile 21 by taking the torsion spring 8 as the axial direction, and is inserted between the adjacent abutting blocks 721, after the lifting pile 22 moves, the limiting block 722 is abutted with the side wall of the abutting block 722 close to the ground, so that the abutting block 721 does not move towards the direction close to the ground, even if the lifting pile 22 does not move towards the direction close to the ground, so that the whole box girder 721 is applicable to the practical height of the construction with higher practical steel roof beam, which is not applicable to the construction.
The implementation principle of the large-span steel box girder pushing system for crossing the existing road in the embodiment of the application is as follows: when the road is wide, the pushing pile 2 is laid on the ground, the propelling driving member 411 is started to drive the driving plate 412 to move towards the direction close to the supporting plate 3 until the driving plate 412 abuts against the supporting plate 3, and the supporting plate 3 is propelled towards the direction far away from the pushing pile 2, so that one end of the supporting plate 3 rotates along the axial direction away from the pushing pile 2 by taking the joint of the supporting plate 3 and the pushing pile 2 as the axial direction, the supporting rod 421 is driven to move towards the direction far away from the pushing pile 2, the supporting rod 421 rotates, so that the two supporting rods 421 move towards the directions far away from each other, in the moving process of the driving plate 412, the driving rod 413 also moves towards the direction close to the supporting plate 3, when the driving rod 413 is separated from the pushing pile 2 and is positioned between the pushing pile 2 and the supporting plate 3, at this time, the propelling plate continues to drive the driving rod 413 to move towards the direction far away from the pushing pile 2, the pushing rod 711 is inserted into the driving groove 30, the end of the driving rod 413 abuts against the inner wall of the driving groove 30 at the side far away from the pushing pile 2, and applies a pushing force to the inner wall of the driving groove 30 in the direction far away from the pushing pile 2, so that the side of the supporting plate 3 far away from the pushing pile 2 and the upper end surface of the pushing pile 2 are in the same plane, that is, when the side of the supporting plate 3 far away from the pushing pile 2 and the upper end surface of the pushing pile 2 are in the same plane, the two supporting rods 421 are in the same straight line, at this time, the fixing block 521 is inserted into the fixing hole 5110, the butterfly-releasing fixing rod 511 cannot slide in the fixing sleeve 512, so that the two supporting rods 421 cannot rotate and always keep in the same straight line, and the connecting line of the two supporting rods 421, the side wall of the pushing pile 2 and the supporting plate 3 always maintain a triangular state, that the included angle between the supporting plate 3 and the side wall of the pushing pile 2 is fixed, make backup pad 3 difficult emergence rotation, backup pad 3 remains throughout and pushes away stake 2 lateral wall vertically state, at this moment, stop to impel driving piece 411, make drive plate 412 stop sliding, actuating lever 413 plays limiting displacement to backup pad 3, make backup pad 3 be difficult to remove to the direction that is close to pushing away stake 2, realize that backup pad 3's upset is fixed, will push away stake 2 vertical placing subaerial after that, and remove to the direction that is close to the road, move to suitable position, make backup pad 3 be located the top region of road, thereby make backup pad 3 and the length that the up end of pushing away stake 2 formed be enough to accept the tip of steel box girder on road both sides support stake 1, can accomplish the connection to the steel box girder that is located the road top, compare in the tip of steel box girder on the support stake 1 that only leans on the up end of pushing away stake 2 to support the road both sides, be more applicable to the connection of the road top steel box girder of different width fixed, the practicality is higher.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a stride across big span steel box girder top push system of existing road, is used for supporting support pile (1) of steel box girder including being located road both sides, support pile (1) are fixed subaerial, subaerial being provided with top push pile (2), top push pile (2) keep away from the one end on ground and are located the top of road, its characterized in that: the pile pushing device is characterized in that a supporting plate (3) is connected to the top pushing pile (2) in a rotating mode, an unfolding mechanism (4) is arranged on the supporting plate (3), the unfolding mechanism (4) comprises a driving assembly (41) and a supporting assembly (42), the driving assembly (41) is connected with the top pushing pile (2), the supporting assembly (42) is connected with the supporting plate (3), the driving assembly (41) moves and drives the supporting assembly (42) to rotate, and the supporting plate (3) is driven to rotate.
2. The large-span steel box girder jacking system spanning an existing road according to claim 1, wherein: drive assembly (41) are including propulsion driving piece (411), drive plate (412) and actuating lever (413), drive plate (412) with push away stake (2) sliding connection, propulsion driving piece (411) with push away stake (2) and link to each other, the output of propulsion driving piece (411) links to each other with drive plate (412) for drive plate (412) and remove on pushing away the width direction of stake (2), actuating lever (413) are mutually perpendicular with drive plate (412), and with drive plate (412) fixed connection, one side that backup pad (3) are close to push away stake (2) is provided with and supplies actuating lever (413) to insert driving groove (30) of establishing, actuating lever (413) are inserted and are established in driving groove (30), make backup pad (3) and ground parallel.
3. The large-span steel box girder jacking system spanning an existing road according to claim 2, wherein: the supporting component (42) comprises two supporting rods (421), one end of each supporting rod (421) is connected with one end of the other supporting rod (421) in a rotating mode, the other end of each supporting rod is connected with the pushing pile (2) in a rotating mode, the other end of each supporting rod (421) is connected with one end, far away from the pushing pile (2), of the corresponding supporting rod (421) in a rotating mode and is connected with the supporting plate (3), a fixing component (5) is connected to the supporting rods (421), and the supporting rods (421) rotate to drive the fixing component (5) to move.
4. The large-span steel box girder jacking system spanning an existing road according to claim 3, wherein: fixed subassembly (5) include telescopic link (51), joint spare (52) and two transfer lines (53), two transfer line (53) are rotated and are connected, two transfer line (53) use telescopic link (51) as the axial symmetry, the one end and two of telescopic link (51) the junction of bracing piece (421) is rotated and is connected, the other end and two the junction of transfer line (53) is rotated and is connected, the one end and the bracing piece (421) rotation that telescopic link (51) were kept away from in transfer line (53) are connected, joint spare (52) are located telescopic link (51) for restriction telescopic link (51) are to the direction removal of keeping away from bracing piece (421).
5. The large-span steel box girder jacking system spanning an existing road according to claim 4, wherein: the utility model discloses a fixing device of fixing pole (511) and fixing cover (512), telescopic link (51) include dead lever (511) and fixed cover (512), dead lever (511) are inserted and are established in fixed cover (512), fixed cover (512) and two the junction of bracing piece (421) rotates to be connected, dead lever (511) and two the junction of transfer line (53) rotates to be connected, joint spare (52) are including fixed block (521) and fixed spring (522), fixed block (521) and fixed spring (522) all locate in fixed cover (512), fixed block (521) and fixed cover (512) sliding connection, fixed spring (522) are used for impelling fixed block (521) to the direction that is close to dead lever (511), the lateral wall of dead lever (511) is provided with and supplies fixed block (521) to insert fixed orifices (5110) of establishing, fixed block (521) keep away from one side of fixed cover (512) diapire and is provided with spigot surface (5210), spigot surface (5210) are close to the direction slope setting of diapire in fixed cover (512) to the one end that is close to fixed cover (512) of spigot surface (5210).
6. The long-span steel box girder jacking system spanning over existing roads according to claim 2, wherein: be provided with extension subassembly (6) on backup pad (3), extension subassembly (6) are including extension board (61) and shrink spring (62), backup pad (3) are kept away from the one end that pushes away a top push stake (2) and are provided with hole (31) that slides, hole (31) and driving groove (30) intercommunication slide, extension board (61) are inserted and are established in hole (31) that slides to extend in driving groove (30), extension board (61) move along the length direction of driving groove (30), shrink spring (62) are located in hole (31) that slides for with extension board (61) to the direction pulling that is close to top push away stake (2).
7. The long-span steel box girder jacking system spanning over existing roads according to claim 1, wherein: push up and be provided with adjustment mechanism (7) on stake (2), adjustment mechanism (7) are including propelling component (71) and spacing subassembly (72), it includes guide pile (21) and promotion stake (22) to push up stake (2), guide pile (21) are fixed subaerial, promote stake (22) and insert and establish in guide pile (21) to with guide pile (21) sliding connection, propelling component (71) link to each other with guide pile (21), spacing subassembly (72) link to each other with promotion stake (22), propelling component (71) rotate, drive it removes to promote stake (22), spacing subassembly (72) are used for restricting promotion stake (22) to the direction removal that is close to ground.
8. The large-span steel box girder jacking system spanning an existing road according to claim 7, wherein: the propelling component (71) comprises a propelling rod (711), one end of the propelling rod (711) is inserted into the positioning pile (21) and is abutted to one end, close to the ground, of the lifting pile (22), the other end of the propelling rod (711) is obliquely arranged in the direction far away from the ground, and the propelling rod (711) is rotatably connected with the positioning pile (21).
9. The large-span steel box girder jacking system spanning an existing road according to claim 8, wherein: spacing subassembly (72) include a plurality of butt joint pieces (721) and a plurality of stopper (722), and is a plurality of butt joint piece (721) are along the length direction evenly distributed who promotes stake (22) on the lateral wall that promotes stake (22), and are a plurality of stopper (722) are along the length direction evenly distributed of spud (21) on the inner wall of spud (21), stopper (722) link to each other through the inner wall of torsional spring (8) and spud (21), stopper (722) are inserted and are established adjacently between butt joint piece (721).
10. The large-span steel box girder jacking system spanning an existing road according to claim 1, wherein: the side wall of the supporting plate (3) is provided with a stop block (9) along the length direction of the supporting plate (3), and one side of the stop block (9) far away from the supporting plate (3) is inclined towards the direction far away from the ears on the ground.
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| CN202210878955.1A CN115404778B (en) | 2022-07-25 | 2022-07-25 | Large-span steel box girder pushing system crossing existing road |
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| CN202210878955.1A CN115404778B (en) | 2022-07-25 | 2022-07-25 | Large-span steel box girder pushing system crossing existing road |
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