CN116446299B - Auxiliary bracket of bridge girder erection machine - Google Patents
Auxiliary bracket of bridge girder erection machine Download PDFInfo
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- CN116446299B CN116446299B CN202310673336.3A CN202310673336A CN116446299B CN 116446299 B CN116446299 B CN 116446299B CN 202310673336 A CN202310673336 A CN 202310673336A CN 116446299 B CN116446299 B CN 116446299B
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- supporting
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- 230000002457 bidirectional effect Effects 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 11
- 230000005484 gravity Effects 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge girder erection machine equipment and discloses an auxiliary bracket of a bridge girder erection machine, which comprises a bracket body and a guide beam, wherein the bracket body comprises an inverted triangle-shaped supporting leg module, the supporting leg module comprises a horizontally arranged supporting beam, two ends of the same side surface of the supporting beam are respectively hinged with a telescopic column and an auxiliary pressure-bearing rod, and the other ends of the telescopic column and the auxiliary pressure-bearing rod are hinged; the supporting roller module is arranged at the top end of the supporting leg module and is in sliding fit with the guide beam, the limiting module arranged on the auxiliary supporting rod is used for limiting the rotating shaft of the auxiliary supporting rod and supporting the supporting beam, and the limiting module is used for further reinforcing the limiting of the auxiliary supporting rod while supporting the supporting beam, so that the overall stability of the structure is improved.
Description
Technical Field
The invention relates to the technical field of bridge girder erection machine equipment, in particular to an auxiliary bracket of a bridge girder erection machine.
Background
The bridge girder erection machine is equipment for placing prefabricated girder segments on prefabricated piers. Bridge girder erection machines belong to the category of cranes because the main function is to lift up the girder segments, then transport them to the location and then drop them down. Bridge girder erection machines are quite different from cranes in general. The requirements are severe and there is a running on the beam, or longitudinal movement. The bridge girder erection machine is divided into a plurality of types of bridge girders of a highway, a conventional railway bridge, a passenger special railway bridge and the like, the auxiliary brackets of the existing bridge girder erection machine are large in size, the auxiliary brackets of the existing bridge girder erection machine can pass through a tunnel after being manually dismantled and folded during tunneling, the tunneling workload is increased, the brackets are folded along with the development of technology to reduce the height of the brackets, the workload of the bridge girder erection machine for passing through the tunnel is reduced, but the existing folding auxiliary brackets are connected through hinges, the stability of the auxiliary brackets is maintained only through folding hydraulic rods when a main girder is supported, and the main girder can exert overturning moment on the auxiliary brackets during movement, so that the overturning of the auxiliary brackets is easy to cause; secondly, the traditional auxiliary bracket cannot adjust the inclination angle of the box girder or has weaker angle adjusting capability when the box girder with the inclination angle is erected, and the requirement is not met; thirdly, when encountering strong wind or geological disasters, the gravity center cannot be quickly lowered, and the disaster resistance is weak.
Disclosure of Invention
The invention aims to provide the auxiliary bracket of the bridge girder erection machine, which is used for supporting the joist while limiting the rotating shaft of the auxiliary pressure-bearing rod through the limiting module arranged on the auxiliary pressure-bearing rod, and further reinforcing the limiting of the auxiliary pressure-bearing rod through the limiting module while supporting the joist, so that the stability of the whole structure is improved, and the problems in the background art are solved.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the auxiliary bracket of the bridge girder erection machine comprises a bracket body and a guide beam, wherein the bracket body comprises an inverted triangle-shaped supporting leg module, the supporting leg module comprises a horizontally arranged supporting beam, two ends of the same side face of the supporting beam are respectively hinged with a telescopic column and a secondary pressure-bearing rod, and the other ends of the telescopic column and the secondary pressure-bearing rod are hinged; the support roller module is arranged at the top end of the support leg module and is in sliding fit with the guide beam.
Preferably, the auxiliary pressure-bearing rod comprises a group of hinged telescopic rods and a pressure-bearing rod, the telescopic rods are far away from the pressure-bearing rod end and are hinged with the telescopic column, the two telescopic rods are connected through a set down tension beam, the telescopic rods are far away from the telescopic column end and are provided with mounting seats, mounting holes are formed in two side plates of each mounting seat, pin shafts matched with the mounting holes are arranged between two side plates of each mounting seat, and limiting telescopic rods matched with the mounting holes are in threaded connection with opposite side surfaces of each mounting seat; the end, close to the mounting seat, of the pressure-bearing rod is provided with a mounting auxiliary hole, the inner diameter of the mounting hole is the same as that of the mounting auxiliary hole, the end, far away from the mounting seat, of the pressure-bearing rod is provided with an upper tensioning plate, the side surface of the upper tensioning plate is hinged with a folding hydraulic rod, and the end, far away from the upper tensioning plate, of the folding hydraulic rod is hinged with the joist.
Preferably, the telescopic rod comprises a sleeve hollow along the axial direction, a bidirectional telescopic hydraulic rod is arranged in the sleeve far away from the end of the mounting seat, the side plate of the mounting seat is an arc curved plate, the side plate of the mounting seat is the same as the inner diameter and the outer diameter of the sleeve, a limiting sliding sleeve is arranged on the outer side surface of the sleeve and is in sliding fit with the sleeve, a limiting hydraulic rod is arranged at the end, close to the lower tensioning beam, of the limiting sliding sleeve, and the limiting hydraulic rod is screwed on the lower tensioning beam; preferably, the pressure-bearing rod is cylindrical, and the pressure-bearing rod is in sliding fit with the mounting seat.
Preferably, a sliding groove extending to the top end of the mounting seat is formed in the side wall of the middle part of the sleeve, and a connecting rod in threaded connection with the limiting telescopic rod is arranged on the bidirectional telescopic hydraulic rod close to the pressure-bearing rod end.
Preferably, the telescopic columns are a group, a supporting fixing frame is arranged between opposite side surfaces of the two telescopic columns, side supporting hydraulic columns are arranged on the same side surfaces of the two telescopic columns, which are close to the auxiliary bearing rods, a balance beam is arranged at the end, which is far away from the supporting beam, of the telescopic columns, a bolster is arranged at the lower end of the balance beam, a plurality of thrust joint bearings are arranged between the balance beam and the bolster, and sliding blocks which are in sliding fit with the bolster are arranged at the lower ends of the joint bearings at the two sides.
Preferably, the joist has two and level parallel arrangement, all is equipped with the stay bar at joist opposite side both ends, and the stay bar flushes with the up end of joist, is equipped with parallel bearing roller curb plate near flexible post end at the joist, all is equipped with back pressure train at bearing roller curb plate opposite side, is equipped with driving motor between back pressure train, and driving motor passes through drive mechanism and is connected with back pressure train, is equipped with the running motor on bearing roller curb plate top.
Preferably, the upper end of the pull beam of the joist is provided with a hinge seat, the hinge seat is hinged with a motor mounting plate, both ends of the motor mounting plate are provided with a traveling motor, and the side, close to the motor mounting plate, of the upper end of the joist is provided with a reverse grabbing wheel.
Preferably, a supporting and fixing structure is arranged between the limiting telescopic rods; the supporting and fixing structure comprises a bearing plate, a push-pull hydraulic rod, a plurality of supporting hydraulic rods and a cross universal joint, wherein the bearing plate is in threaded connection with the joist; the telescopic expansion device further comprises a pressure-bearing limiting rod, and the pressure-bearing limiting rod is arranged at one end of the limiting telescopic rod.
Preferably, buffer modules are oppositely arranged at the two ends of the bearing plate, which are close to one side of the joist, and a hinge seat is oppositely arranged at one side of the bearing plate, which is far away from the joist, and the hinge seat is connected with a supporting hydraulic rod through a universal ball head; the pressure-bearing limit rod is connected with the limit telescopic rod through a universal ball head.
Preferably, the guide beam is provided with homopolar magnets on one side close to the carrier roller module, electromagnets are arranged in motor mounting plates between the travelling motors, and auxiliary travelling wheels are arranged on opposite sides of the travelling motors.
Compared with the prior art, the invention has the following beneficial effects:
1. one ends of the telescopic column and the auxiliary pressure-bearing rod are hinged to two ends of the joist, and the other ends of the telescopic column and the auxiliary pressure-bearing rod are hinged, so that the telescopic column, the auxiliary pressure-bearing rod and the joist are in an inverted triangle structure, the guide beam is supported by a bracket body in the inverted triangle structure, namely, the guide beam resists the overturning moment of the bracket body through two upper fixed points (namely, two hinged seats of the joist) of the inverted triangle, and the stability of the bracket body structure is enhanced;
2. the height of the hinge joint of one or two pressure-bearing rods and the telescopic rod is adjusted through the bidirectional telescopic hydraulic rod in the unfolding state, so that the included angle between the upper end face of the joist and the horizontal plane is adjusted, the adjustment of the inclination angle of the girder box is realized through the horizontal included angle and the longitudinal horizontal included angle, and meanwhile, the anti-strong wind capability of the bridge girder erection machine is enhanced and overturning is prevented through the adjustment of the inclination angle of the girder box when strong crosswind is encountered.
3. The auxiliary pressure-bearing rod of the supporting leg module is hinged with the telescopic rod, and the telescopic column and the auxiliary pressure-bearing rod of the supporting leg module are folded through the extension or shortening of the folding hydraulic rod arranged on the supporting fixing frame, so that the purpose of reducing the height of the bridge girder erection machine is achieved, and the purpose of tunneling is achieved;
4. when the telescopic column and the auxiliary pressure-bearing rod of the supporting leg module are unfolded, the push-pull hydraulic rods are shortened, the four supporting hydraulic rods are unfolded like an umbrella, the axes of the supporting hydraulic rods, the hinge seat, the pressure-bearing limiting rods and the limiting telescopic rods are coplanar, the four supporting hydraulic rods are in a crisscross state, part of gravity of the joist is conducted to the pressure-bearing limiting rods through the supporting hydraulic rods, limiting fixation of the limiting telescopic rods or the pin shaft telescopic rods is achieved when the joist is supported, and therefore the quadrangular joist, the telescopic column, the pressure-bearing rods and the telescopic rods maintain an inverted triangle structure in an unfolding state, and the structural stability of the supporting leg module is enhanced.
5. The four supporting hydraulic rods are contracted like umbrella through the extension of the push-pull hydraulic rods, the constraint of the pressure-bearing rods and the telescopic rods is relieved by the limiting telescopic rods, the pressure-bearing rods and the telescopic rods are folded rapidly, then the gravity center of the bridge girder erection machine is reduced rapidly through the contraction of the telescopic rods and the hydraulic rods of the main support legs, the anti-overturning capacity of the bridge girder erection machine when the bridge girder erection machine encounters strong wind or geological disasters suddenly is enhanced, and loss is reduced.
Drawings
FIG. 1 is a left side view of a bracket of the present invention;
FIG. 2 is an isometric view of a guide beam of the present invention;
FIG. 3 is a front view of the auxiliary bracket of the present invention;
FIG. 4 is an isometric view of an auxiliary bracket of the present invention;
FIG. 5 is a bottom view of the auxiliary bracket of the present invention;
FIG. 6 is an isometric view of a secondary pressure-bearing rod of the present invention;
FIG. 7 is a schematic view of a telescoping column according to the present invention;
FIG. 8 is a front view of a secondary pressure-containing rod of the present invention;
FIG. 9 is a cross-sectional view of a secondary pressure receiving bar AA of the present invention;
FIG. 10 is an isometric view of one embodiment of a secondary load bearing bar of the present invention;
FIG. 11 is an isometric view of another embodiment of a secondary pressure-bearing rod of the present invention;
FIG. 12 is a schematic view of a support and fixation structure according to the present invention;
FIG. 13 is an isometric view of a support and fixation structure and secondary compression bar of the present invention;
FIG. 14 is a southwest isometric view of a support fixture and secondary pressure bar of the present invention;
FIG. 15 is a front view of the support fixture of the present invention;
FIG. 16 is an isometric view of a support and fixation structure of the present invention;
fig. 17 is an isometric view of a support and fixation structure of the present invention.
In the figure: bracket body 1, guide beam 2, support leg module 3, telescopic column 300, auxiliary bearing rod 301, bearing rod 302, limit telescopic rod 303, upper tensioning plate 304, folding hydraulic rod 305, supporting fixing frame 306, side supporting hydraulic column 307, telescopic rod 308, balance beam 309, bidirectional telescopic hydraulic rod 310, limit hydraulic rod 311, limit sliding sleeve 312, support roller module 4, driving motor 400, back pressure train 401, support roller side plate 402, traveling motor 403, motor mounting plate 404, hinge seat 405, support beam 5, cushion beam 6, supporting fixing structure 7, bearing plate 701, cross universal joint 702, hinge seat 703, push-pull hydraulic rod 707, supporting hydraulic rod 704, pressure bearing limit rod 705, and buffer module 706.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
An auxiliary bracket of a bridge girder erection machine as shown in fig. 1, 2 and 3, fig. 1 is a left side view of the bracket of the present invention; FIG. 2 is an isometric view of a guide beam of the present invention; FIG. 3 is a front view of the auxiliary bracket of the present invention; the auxiliary bracket of the bridge girder erection machine comprises a bracket body 1 and a guide beam 2, wherein the guide beam 2 is arranged at the upper end of the bracket body 1 to realize the supporting function of the bracket body 1 on the guide beam 2, the bracket body 1 comprises an inverted triangle-shaped support leg module 3, the support leg module 3 comprises a horizontally arranged joist 5, two ends of the same side surface of the joist 5 are respectively hinged with a telescopic column 300 and a secondary pressure-bearing rod 301, and the telescopic column 300 is hinged with the other end of the secondary pressure-bearing rod 301; still including establishing in landing leg module 3 top and with nose girder 2 sliding fit's bearing roller module 4, carrier frame body 1 wraps up and supports nose girder 2 through bearing roller module 4, supports nose girder 2 through the carrier frame body 1 of falling the triangle structure, and the moment of overturning to carrier frame body 1 is resisted through two upper fixed points of falling the triangle promptly, realizes reinforcing carrier frame body 1 structural stability.
It can be understood that in this embodiment, one ends of the telescopic column 300 and the auxiliary pressure-bearing rod 301 are respectively hinged at two ends of the joist 5, and the other ends of the telescopic column 300 and the auxiliary pressure-bearing rod 301 are hinged, so that the telescopic column 300, the auxiliary pressure-bearing rod 301 and the joist 5 are in an inverted triangle structure, under the above structure, the telescopic column 300, the auxiliary pressure-bearing rod 301 and the joist 5 are resisted by the overturning moment of the guide beam 2 through the hinge joint of the telescopic column 300 and the auxiliary pressure-bearing rod 301 and the joist 5, thereby ensuring the stability of the structure of the bracket body 1.
As shown in fig. 3, 5 and 6, fig. 5 is a bottom view of the auxiliary bracket of the present invention; FIG. 6 is an isometric view of a secondary pressure-bearing rod of the present invention;
in one embodiment, the auxiliary pressure-bearing rod 301 comprises a group of hinged telescopic rods 308 and pressure-bearing rods 302, the ends of the telescopic rods 308 far away from the pressure-bearing rods 302 are hinged with the telescopic columns 300, the two telescopic rods 308 are connected through a set lower tension beam, the ends of the telescopic rods 308 far away from the telescopic columns 300 are provided with mounting seats, mounting holes are formed in two side plates of each mounting seat, pin shafts matched with the mounting holes are arranged between the two side plates of each mounting seat, and limiting telescopic rods 303 matched with the mounting holes are in threaded connection with opposite side surfaces of each mounting seat; the end of the pressure-bearing rod 302 close to the mounting seat is provided with a mounting auxiliary hole, the inner diameter of the mounting hole is the same as that of the mounting auxiliary hole, the end of the pressure-bearing rod 302 far away from the mounting seat is provided with an upper tensioning plate 304, the side surface of the upper tensioning plate 304 is hinged with a folding hydraulic rod 305, and the end of the folding hydraulic rod 305 far away from the upper tensioning plate 304 is hinged with the joist 5.
It can be understood that the auxiliary pressure-bearing rod 301 comprises a group of hinged telescopic rods 308 and pressure-bearing rods 302, and the telescopic function of the supporting leg module 3 is realized through the telescopic rods 308 and the telescopic columns 300, so as to meet the height requirements of different fulcrums;
it can be further understood that the end of the telescopic rod 308 away from the pressure-bearing rod 302 is hinged with the telescopic column 300, the end of the pressure-bearing rod 302 away from the mounting seat is provided with an upper tension plate 304, the side surface of the upper tension plate 304 is hinged with a folding hydraulic rod 305, the end of the folding hydraulic rod 305 away from the upper tension plate 304 is hinged with the joist 5, the upper tension plate 304 is pushed to move by the extension of the folding hydraulic rod 305, and then the pressure-bearing rod 302 is driven to rotate around the mounting seat by a certain angle, so that the included angle between the pressure-bearing rod 302 and the telescopic rod 308 is reduced, the telescopic column 300 and the auxiliary pressure-bearing rod 301 of the supporting leg module 3 are folded, and the purpose of reducing the height of the bridge girder erection machine is achieved;
in one embodiment, the end of the telescopic rod 308 away from the telescopic column 300 is provided with a mounting seat, mounting holes are formed in two side plates of the mounting seat, a pin shaft matched with the mounting holes is arranged between the two side plates of the mounting seat, and limiting telescopic rods 303 matched with the mounting holes are in threaded connection with opposite side surfaces of the two mounting seats; it can be understood that, through being equipped with between the both sides board of mount pad with mounting hole complex round pin axle, realize telescopic link 308 and pressure-bearing rod 302 around articulated mount pad rotation, all be equipped with the mounting hole on the mount pad both sides board, pressure-bearing rod 302 is close to the mount pad end and is equipped with the installation vice hole, passes the spacing of mounting hole and installation vice hole realization telescopic link 308 and pressure-bearing rod 302 through spacing telescopic link 303, ensures that landing leg module 3 is the inverted triangle structure.
As shown in fig. 8-11, fig. 8 is a front view of the secondary pressure-bearing rod of the present invention; FIG. 9 is a cross-sectional view of a secondary pressure receiving bar AA of the present invention;
FIG. 10 is an isometric view of one embodiment of a secondary load bearing bar of the present invention; FIG. 11 is an isometric view of another embodiment of a secondary pressure-bearing rod of the present invention;
in one embodiment, the telescopic rod 308 comprises a sleeve hollow along the axial direction, a bidirectional telescopic hydraulic rod 310 is arranged in the sleeve at the end far away from the mounting seat, the side plate of the mounting seat is an arc curved plate, the side plate of the mounting seat is the same as the inner diameter and the outer diameter of the sleeve, a limit sliding sleeve 312 is arranged on the outer side surface of the sleeve, the limit sliding sleeve 312 is in sliding fit with the sleeve, a limit hydraulic rod 311 is arranged at the end, close to the lower tensioning beam, of the limit sliding sleeve 312, and the limit hydraulic rod 311 is in threaded connection with the lower tensioning beam; the pressure-bearing rod 302 is cylindrical, and the pressure-bearing rod 302 is in sliding fit with the mounting seat.
It can be understood that when the transverse inclination angle of the guide beam needs to be adjusted in the supporting state, the telescopic rod 308 comprises a sleeve hollow along the axial direction, a bidirectional telescopic hydraulic rod 310 is arranged at the end, far away from the mounting seat, in the sleeve, and the bidirectional telescopic hydraulic rod 310 is installed in the sleeve to lift the end, close to the telescopic column 300, of the bidirectional telescopic hydraulic rod 310, so as to lift one end of the joist 5, adjust the inclination angle of the guide beam 2, and adjust the inclination angle of the guide beam 2 through the fixed position of a pin shaft when the pressure-bearing rod 302 is hinged with the mounting seat;
when the telescopic column 300 and the auxiliary pressure-bearing rod 301 of the support leg module 3 are required to be folded and cannot pass through a tunnel, the telescopic rod 308 comprises a sleeve which is hollow along the axial direction, a bidirectional telescopic hydraulic rod 310 is arranged in the sleeve and far away from the end of the installation seat, the side plate of the installation seat is an arc curved plate, the side plate of the installation seat is the same as the inner diameter and the outer diameter of the sleeve, a limit sliding sleeve 312 is arranged on the outer side surface of the sleeve, the limit sliding sleeve 312 is in sliding fit with the sleeve, a limit hydraulic rod 311 is arranged at the end, close to the lower tensioning beam, of the limit sliding sleeve 312, and the limit hydraulic rod 311 is screwed on the lower tensioning beam; the pressure-bearing rod 302 is cylindrical, the pressure-bearing rod 302 is in sliding fit with the mounting seat, the telescopic pipe close to the end of the pressure-bearing rod 302 is supported by the bidirectional telescopic hydraulic rod 310 mounted in the sleeve, the limiting sliding sleeve 312 is pushed to ascend by the limiting hydraulic rod 311 to limit the pressure-bearing rod 302, then the limiting rod is pulled out of the mounting auxiliary hole of the pressure-bearing rod 302 by the limiting telescopic rod 303, and the pin shaft is pulled out of the mounting auxiliary hole of the pressure-bearing rod 302 by the pin shaft telescopic rod (shown in the figure); a sliding groove extending to the top end of the mounting seat is formed in the side wall of the middle part of the sleeve, and a connecting rod in threaded connection with the limiting telescopic rod 303 and the pin telescopic rod is arranged at the end, close to the pressure-bearing rod 302, of the bidirectional telescopic hydraulic rod 310; it can be understood that the lifting of the limit telescopic rod 303 and the pin telescopic rod is controlled by the bidirectional hydraulic rod 310, the telescopic pipe close to the end of the pressure-bearing rod 302 is lowered by the bidirectional telescopic hydraulic rod 310 installed in the sleeve, the pressure-bearing rod 302 is lowered, then the limit rod is placed into the installation auxiliary hole of the pressure-bearing rod 302 by the limit telescopic rod 303, the pin is placed into the installation auxiliary hole of the pressure-bearing rod 302 by the pin telescopic rod (shown in the figure), then the limit sliding sleeve 312 is pushed to be lowered by the limit hydraulic rod 311, the telescopic column 300 is further pulled up when the pressure-bearing rod 302 and the telescopic rod 308 are folded, and the height of the landing leg module 3 after shrinkage is reduced;
when the inclination angle of the guide beam 2 in the longitudinal direction is adjusted, it can be understood that, because the telescopic rods 308 are connected through the down-tensioned beam, the bridge girder erection machine cannot adjust the longitudinal inclination angle of the guide beam 2 through the length of the bidirectional hydraulic rod 310 close to the end 300, the bidirectional hydraulic rod 310 controls the lifting of the limit telescopic rod 303 and the pin shaft telescopic rod, the limit sliding sleeve 312 is pushed to lift through the limit hydraulic rod 311, the pressure-bearing rod 302 is limited, the telescopic pipe close to the end of the pressure-bearing rod 302 is lifted through the bidirectional telescopic rod 310 installed in the sleeve, the height of one pressure-bearing rod 302 is extended, then the limit telescopic rod is pulled out of the installation auxiliary hole of the pressure-bearing rod 302 through the limit telescopic rod 303, the pin shaft is pulled out of the installation auxiliary hole of the pressure-bearing rod 302 through the pin shaft telescopic rod (shown in the drawing), the telescopic pipe close to the end of the pressure-bearing rod 302 is lifted through the bidirectional telescopic rod 310 installed in the sleeve until the installation hole and the installation auxiliary hole of the mounting auxiliary hole are lifted again, and then the limit telescopic rod 302 is placed into the bridge girder erection machine through the pin shaft 302 through the limit telescopic rod 303, and the bridge girder erection machine can be adjusted to be a longitudinal direction of the bridge girder erection machine.
As shown in fig. 7, fig. 7 is a schematic view of a telescopic column of the present invention, the telescopic columns 300 are a group, a supporting fixing frame 306 is arranged between opposite sides of the two telescopic columns 300, side supporting hydraulic columns 307 are arranged on the same sides of the two telescopic columns 300 close to the auxiliary pressure-bearing rods 301, a balance beam 309 is arranged at the end of the telescopic column 300 far away from the joist 5, a bolster 6 is arranged at the lower end of the balance beam 309, a plurality of thrust joint bearings are arranged between the balance beam 309 and the bolster 6, and sliding blocks in sliding fit with the bolster 6 are arranged at the lower ends of the joint bearings at two sides.
It will be appreciated that a turning mechanism is provided in the bolster 6 for meeting the curved bolster requirements by means of a turning mechanism and thrust knuckle bearing in the bolster 6.
The joist 5 has two and level parallel arrangement, all is equipped with the stay bar at joist 5 opposite side both ends, and the stay bar flushes with the up end of joist 5, is equipped with parallel bearing roller curb plate 402 near flexible post 300 end at joist 5, all is equipped with back pressure train 401 at bearing roller curb plate 402 opposite side, is equipped with driving motor 400 between back pressure train 401, is equipped with elevating system at back pressure train 401 lower extreme, and driving motor 400 passes through drive mechanism and is connected with back pressure train 401, is equipped with walking motor 403 at bearing roller curb plate 402 top.
The upper end of the pull beam of the joist 5 is provided with a hinge seat 405, the hinge seat 405 is hinged with a motor mounting plate 404, both ends of the motor mounting plate 404 are provided with a traveling motor 403, and the side, close to the motor mounting plate 404, of the upper end of the joist 5 is provided with a reverse grabbing wheel.
It can be understood that when the longitudinal angle of the guide beam 2 needs to be adjusted, the height of the counter-pressure gear train 401 on one side is adjusted through the lifting mechanism at the lower end of the counter-pressure gear train 401 after the pressure-bearing rod 302 is adjusted, so that the gravity center of the bridge girder erection machine is offset, and the wind resistance is enhanced.
As shown in fig. 12-17, fig. 12 is a schematic view of the support and fixing structure of the present invention; FIG. 13 is an isometric view of a support and fixation structure and secondary compression bar of the present invention; FIG. 14 is a southwest isometric view of a support fixture and secondary pressure bar of the present invention; FIG. 15 is a front view of the support fixture of the present invention; FIG. 16 is an isometric view of a support and fixation structure of the present invention; FIG. 17 is an southeast perspective view of the support and fixation structure of the present invention;
in one embodiment, a supporting and fixing structure 7 is arranged between the limiting telescopic rods 303; the supporting and fixing structure 7 comprises a bearing plate 701, a push-pull hydraulic rod 707, a plurality of supporting hydraulic rods 704 and a cross universal joint 702, wherein the bearing plate 701 is in threaded connection with the joist 5, one end of the push-pull hydraulic rod 707 is hinged to one side of the supporting fixing frame 306, the end, far away from the supporting fixing frame 306, of the push-pull hydraulic rod 707 is provided with the cross universal joint 702, and one end of the supporting hydraulic rod 704 is connected with the cross universal joint 702 through a universal ball head; and the device also comprises a pressure-bearing limiting rod 705, wherein the pressure-bearing limiting rod 705 is arranged at one end of the limiting telescopic rod 303.
Buffer modules 706 are arranged at the two opposite ends of one side of the bearing plate 701, close to the joist 5, and a hinge seat 703 is arranged at the opposite side of the bearing plate 701, far away from the joist 5, and the hinge seat 703 is connected with a supporting hydraulic rod 704 through a universal ball head; the pressure-bearing limit rod 705 is connected with the limit telescopic rod 303 through a universal ball head.
It will be appreciated that a support fixing structure 7 is arranged between the limit expansion rods 303, and is used for reinforcing the inverted triangle structure of the leg module 3, a push-pull hydraulic rod 707 of the support fixing structure 7 is hinged on one side of the support fixing frame 306, a cross universal joint 702 is arranged at the other top end, four support hydraulic rods 704 are connected at four output ends of the cross universal joint 702, two support hydraulic rods 704 positioned on the upper side of the push-pull hydraulic rod 707 are hinged on the bearing plate 701, two support hydraulic rods 704 positioned on the lower side of the push-pull hydraulic rod 707 are connected with the limit expansion rods 303 or with pin shaft expansion rods according to requirements, universal ball heads are mounted at two ends of the support hydraulic rods 704, and are used for realizing multidirectional rotation of the support hydraulic rods 704, when the expansion columns 300 and the auxiliary bearing rods 301 of the leg module 3 are folded, the four support hydraulic rods are stretched through the push-pull hydraulic rods 707, the four support hydraulic rods are combined like umbrella shapes, when the expansion columns 300 and the auxiliary bearing rods 301 of the leg module 3 are unfolded, the four support hydraulic rods 704 are unfolded like umbrella shapes, when the push-pull hydraulic rods 704 are shortened to be shortest, the two support hydraulic rods 704 positioned on the lower side of the push-pull hydraulic rods 707 are connected with the limit expansion rods 303 or with the pin shaft expansion rods, and the limit expansion rods are simultaneously supported by the limit expansion rods 704 are in a coplanar state, and the limit expansion rods are supported by the limit expansion rods 303 are in a limit expansion structure, and the limit expansion columns are in a limit expansion structure, and the limit expansion rods are in a limit expansion structure, and are in a limit state, 5.
When the bridge girder erection machine is subjected to strong wind or geological disasters in the process of erecting the girder through holes, the push-pull hydraulic rods 707 extend to retract the limiting telescopic rods 303, the four supporting hydraulic rods 704 are combined like umbrella shapes, so that the included angle between the pressure-bearing rods 302 and the telescopic rods 308 of the auxiliary pressure-bearing rods 301 is rapidly reduced, the telescopic columns 300 retract, the hydraulic columns of the main supporting legs behind the bridge girder erection machine retract, the gravity center of the bridge girder erection machine is rapidly reduced, and the disaster resistance capability of the bridge girder erection machine is enhanced.
In one embodiment, the guide beam 2 is provided with an electromagnet on the side close to the carrier roller module 4, the electromagnet is mounted in the motor mounting plate 404 between the travelling motors 403, and auxiliary travelling wheels are arranged on the opposite side of the travelling motors 403. It can be appreciated that when the guide beam 2 moves relative to the bracket body 1, the guide beam 2 and the electromagnet in the motor mounting button 404 are electrified, the magnetic poles of the generated electromagnet are the same as the polarity of the electromagnet in the guide beam 2, and the interaction force between the guide beam 2 and the motor mounting button 404 is reduced by the electromagnetic repulsive force, so that the friction force is reduced.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a bridge crane auxiliary bracket, includes bracket body and nose girder, its characterized in that: the bracket body comprises an inverted triangle supporting leg module, the supporting leg module comprises a horizontally arranged joist, two ends of the same side face of the joist are respectively hinged with a telescopic column and an auxiliary pressure-bearing rod, and the other ends of the telescopic column and the auxiliary pressure-bearing rod are hinged; the carrier roller module is arranged at the top end of the supporting leg module and is in sliding fit with the guide beam;
the auxiliary pressure-bearing rod comprises a group of hinged telescopic rods and a pressure-bearing rod, the telescopic rods are hinged with the telescopic columns far away from the pressure-bearing rod ends, the two telescopic rods are connected through a set lower tension beam, the telescopic rods are provided with mounting seats far away from the telescopic column ends, mounting holes are formed in two side plates of each mounting seat, pin shafts matched with the mounting holes are arranged between the two side plates of each mounting seat, and limiting telescopic rods matched with the mounting holes are in threaded connection with the opposite side surfaces of the two mounting seats; the end, close to the mounting seat, of the pressure-bearing rod is provided with a mounting auxiliary hole, the inner diameter of the mounting hole is the same as that of the mounting auxiliary hole, the end, far away from the mounting seat, of the pressure-bearing rod is provided with an upper tensioning plate, the side surface of the upper tensioning plate is hinged with a folding hydraulic rod, and the end, far away from the upper tensioning plate, of the folding hydraulic rod is hinged with the joist;
a supporting and fixing structure is arranged between the limiting telescopic rods; the supporting and fixing structure comprises a bearing plate, a push-pull hydraulic rod, a plurality of supporting hydraulic rods and a cross universal joint, wherein the bearing plate is in threaded connection with the joist; the device also comprises a pressure-bearing limiting rod, wherein the pressure-bearing limiting rod is arranged at one end of the limiting telescopic rod; buffer modules are oppositely arranged at two ends of one side, close to the joist, of the bearing plate, and a hinge seat is oppositely arranged at one side, far away from the joist, of the bearing plate and is connected with a supporting hydraulic rod through a universal ball head; the pressure-bearing limit rod is connected with the limit telescopic rod through a universal ball head.
2. The bridge girder erection machine auxiliary bracket according to claim 1, wherein: the telescopic rod comprises a sleeve hollow along the axial direction, a bidirectional telescopic hydraulic rod is arranged at the end, far away from the mounting seat, in the sleeve, a side plate of the mounting seat is an arc curved plate, the inner diameter and the outer diameter of the side plate of the mounting seat are the same as those of the sleeve, a limit sliding sleeve is arranged on the outer side surface of the sleeve and is in sliding fit with the sleeve, a limit hydraulic rod is arranged at the end, close to the lower tensioning beam, of the limit sliding sleeve, and the limit hydraulic rod is screwed on the lower tensioning beam; the pressure-bearing rod is cylindrical, and the pressure-bearing rod is in sliding fit with the mounting seat.
3. The bridge girder erection machine auxiliary bracket according to claim 2, wherein: a sliding groove extending to the top end of the mounting seat is formed in the side wall of the middle of the sleeve, and a connecting rod in threaded connection with the limiting telescopic rod is arranged on the bidirectional telescopic hydraulic rod close to the pressure-bearing rod end.
4. A bridge girder erection machine auxiliary bracket according to claim 3, wherein: the telescopic columns are a group, a supporting fixing frame is arranged between opposite side surfaces of the two telescopic columns, side supporting hydraulic columns are arranged on the same side surfaces of the two telescopic columns, which are close to the auxiliary bearing rods, a balance beam is arranged at the end, which is far away from the supporting beam, of the telescopic columns, a bolster is arranged at the lower end of the balance beam, a plurality of thrust joint bearings are arranged between the balance beam and the bolster, and sliding blocks which are in sliding fit with the bolster are arranged at the lower ends of the joint bearings at the two sides.
5. The bridge girder erection machine auxiliary bracket according to claim 4, wherein: the support beam has two and level parallel arrangement, all is equipped with the stay bar at the support beam opposite side both ends, and the stay bar flushes with the up end of support beam, is equipped with parallel bearing roller curb plate near flexible post end at the support beam, all is equipped with back pressure train at bearing roller curb plate opposite side, is equipped with driving motor between back pressure train, and driving motor passes through drive mechanism and is connected with back pressure train, is equipped with the running motor on bearing roller curb plate top.
6. The bridge girder erection machine auxiliary bracket according to claim 5, wherein: the upper end of the pull beam of the joist is provided with a hinge seat, the hinge seat is hinged with a motor mounting plate, both ends of the motor mounting plate are provided with a traveling motor, and the side, close to the motor mounting plate, of the upper end of the joist is provided with a reverse grabbing wheel.
7. The auxiliary bracket of the bridge girder erection machine of claim 6, wherein the guide beam is provided with an electromagnet at one side close to the carrier roller module, the electromagnet is arranged in a motor mounting plate between the travelling motors, and auxiliary travelling wheels are arranged at the opposite side surfaces of the travelling motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310673336.3A CN116446299B (en) | 2023-06-08 | 2023-06-08 | Auxiliary bracket of bridge girder erection machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310673336.3A CN116446299B (en) | 2023-06-08 | 2023-06-08 | Auxiliary bracket of bridge girder erection machine |
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| CN116446299A CN116446299A (en) | 2023-07-18 |
| CN116446299B true CN116446299B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310673336.3A Active CN116446299B (en) | 2023-06-08 | 2023-06-08 | Auxiliary bracket of bridge girder erection machine |
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| CN114717956A (en) * | 2022-04-01 | 2022-07-08 | 贵州大通路桥工程建设有限公司 | Bridge pier column diaphragm construction umbrella-type support system |
| CN114775869A (en) * | 2022-04-15 | 2022-07-22 | 中国建筑第七工程局有限公司 | Multi-dimensionally adjustable connecting system for supporting complex surface modeling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11363864B2 (en) * | 2020-06-29 | 2022-06-21 | Tuuci Worldwide, Llc | Support assembly for indoor and outdoor use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206941396U (en) * | 2017-02-21 | 2018-01-30 | 郑州市华中建机有限公司 | Cross tunnel box beam bridge formation machine |
| CN209162910U (en) * | 2018-11-28 | 2019-07-26 | 青岛义和钢构有限公司 | A kind of steel member being laid with for ground |
| CN111731983A (en) * | 2020-07-20 | 2020-10-02 | 张让林 | Supporting device |
| CN213978604U (en) * | 2020-09-22 | 2021-08-17 | 中铁第五勘察设计院集团有限公司 | Front support leg of bridge girder erection machine |
| CN112177212A (en) * | 2020-10-21 | 2021-01-05 | 广东顺的建设工程有限公司 | Curtain wall structure with high sealing performance |
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| CN114775869A (en) * | 2022-04-15 | 2022-07-22 | 中国建筑第七工程局有限公司 | Multi-dimensionally adjustable connecting system for supporting complex surface modeling |
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| CN116446299A (en) | 2023-07-18 |
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