CN117945293B - Hoisting equipment suitable for double U-box combined continuous beam of urban rail bridge - Google Patents
Hoisting equipment suitable for double U-box combined continuous beam of urban rail bridge Download PDFInfo
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Abstract
The invention discloses hoisting equipment suitable for a double U-box combined continuous beam of an urban rail bridge, which comprises an upper operation platform, wherein a bidirectional pre-tensioning hoisting mechanism, a hydraulic transverse rope adjusting mechanism and a hydraulic tensioning mechanism are arranged on the installation platform; one end of the steel wire rope sequentially passes through the hydraulic tensioning mechanism, the elastic guiding mechanism, the upper non-return transmission mechanism, the lower non-return transmission mechanism and the hydraulic transverse rope adjusting mechanism and is wound on the bidirectional pre-tensioning type winding mechanism. The invention can accurately correct the precast beam segment, ensures accurate alignment of the precast beam segment, does not need other auxiliary correction equipment, and effectively improves the operation efficiency. The invention is suitable for the technical field of continuous beam splicing construction equipment.
Description
Technical Field
The invention belongs to the technical field of continuous beam splicing construction equipment, and particularly relates to hoisting equipment suitable for a double U-box combined continuous beam of an urban rail bridge.
Background
Currently, continuous beam overpasses are widely used in construction of projects such as rail transit, expressways and the like. Along with the continuous progress of construction technology, the restriction of various aspects such as limited construction conditions, construction progress, improvement of environmental protection requirements and the like, engineering units begin to use a large amount of prefabricated continuous beams. At present, some precast concrete bridges Liang Anli exist at home and abroad, but the structure of the precast concrete bridges is mostly in a uniform cross section form, and the structure is simpler. Along with the continuous progress of science and technology, urban rails constructed and used in cities are more reasonable in stress by optimizing the structure under the condition that the urban rails meet functions, and meanwhile, the construction of appearance is more focused, and the space saving is also more focused. Therefore, the industrial construction of the rail transit infrastructure is an objective requirement for realizing energy conservation and emission reduction and industrial upgrading in the civil engineering industry.
In such a background, the splicing technology of the precast beam segments with the inclined web and the double U-box combined structure is developed. Compared with the assembly construction of a common box girder type bridge structure, the bridge with the inclined web plate and double U-shaped box combined structure has higher requirements on prefabrication and assembly precision, and in order to ensure the assembly precision of the variable-section curve bridge, the bridge deck crane needs to be improved so as to reduce the problems of deflection, deflection and the like of the existing hoisting equipment in the process of hoisting a counterweight. However, after the problem occurs, the precast beam segment is extremely difficult to accurately correct, so that splicing deviation occurs, and the engineering quality is reduced. And in order to correct deflection, etc. of the precast beam segments, other auxiliary equipment is required, and time is long, so that the working efficiency is lowered.
Disclosure of Invention
The invention provides hoisting equipment suitable for a double-U-box combined continuous beam of an urban rail bridge, which is used for accurately correcting a hoisted precast beam segment to be accurately aligned with a position required to be spliced, does not need other auxiliary correction equipment, and effectively improves the operation efficiency.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The hoisting equipment suitable for the double U-box combined continuous beam of the urban rail bridge comprises an upper operation platform which is arranged above one end of an installation platform through a support frame, wherein a bidirectional pre-tensioning hoisting mechanism, a hydraulic transverse rope adjusting mechanism and a hydraulic tensioning mechanism are arranged on the installation platform at intervals in the direction facing the support frame, an elastic guide mechanism and an upper non-return transmission mechanism are arranged on the upper operation platform at intervals along the horizontal direction and the direction facing away from the installation platform, a lower non-return transmission mechanism is arranged below the upper non-return transmission mechanism, the lower non-return transmission mechanism is connected with a hanger through a multi-dimensional adjusting mechanism, and a support running mechanism is arranged at the lower end of the installation platform; one end of one or more steel wire ropes unreeled by the bidirectional pre-tensioning type winding mechanism sequentially passes through the hydraulic tensioning mechanism, the elastic guide mechanism, the upper non-return transmission mechanism, the lower non-return transmission mechanism and the hydraulic transverse rope adjusting mechanism and is wound on the bidirectional pre-tensioning type winding mechanism.
Further, the mounting platform is quadrilateral structure, the support running mechanism includes four support columns of one-to-one installation in mounting platform four corners department, installs the U type slide of lock on the track in the lower extreme of each support column, installs vertical support hydro-cylinder in the lower extreme of mounting platform and be located one side of each support column, installs respectively on two support columns that are located mounting platform homoend and walk the driving hydro-cylinder, each walk the driving hydro-cylinder and extend along orbital direction, walk the one end that the driving hydro-cylinder kept away from the support column and install and hold the rail seat.
Further, the bidirectional pre-tensioning winding mechanism comprises a first supporting seat fixedly installed on the upper end face of the installation platform, two winding drums are symmetrically and rotatably installed on the first supporting seat through installation shafts, first tensioning winding drums are respectively constructed at the mutually approaching ends of the two winding drums, second tensioning winding drums are respectively constructed at the mutually approaching ends of the two first tensioning winding drums, the two second tensioning winding drums are connected through a driving wheel, the radial length of each first tensioning winding drum is smaller than that of the second tensioning winding drum, the driving wheel, the first tensioning winding drum, the second tensioning winding drum and the axis of each winding drum coincide, one end of a steel wire rope is unreeled at the winding drum and wound at the first tensioning winding drum or the second tensioning winding drum.
Further, the hydraulic type transverse rope adjusting mechanism comprises a third supporting seat fixedly installed on the upper end face of the installation platform, transverse installation beams are installed on the third supporting seat, connecting edges are respectively constructed on two sides of the transverse installation beams, a plurality of strip-shaped holes are formed in the connecting edges at intervals along the length direction of the transverse installation beams, each strip-shaped hole extends along the transverse length direction, a plurality of first transverse adjusting oil cylinders are installed at intervals along the length direction of the lower end of the transverse installation beams, rope guide rings are installed on oil cylinder rods of the first transverse adjusting oil cylinders, and the end parts of the steel wire ropes pass through the corresponding rope guide rings and then are wound on the first tensioning winding drum or the second tensioning winding drum.
Further, the hydraulic tensioning mechanism comprises a second supporting seat fixedly arranged on the upper end face of the mounting platform, a hydraulic mounting body is arranged on the second supporting seat, the hydraulic mounting body is provided with a plurality of hydraulic driving cavities which are arranged along the transverse direction of the mounting platform at intervals, lifting columns with the upper ends extending out of the hydraulic driving cavities vertically are arranged in the hydraulic driving cavities, a first wheel seat is arranged at the upper ends of the lifting columns, a pressure sensor is arranged at the position where the lifting columns are connected with the first wheel seat, a first tensioning wheel is rotatably arranged on the first wheel seat, an oil inlet joint and an oil outlet joint are respectively communicated with the lower ends and the lower sides of the hydraulic driving cavities, electromagnetic valves are respectively arranged on the oil inlet joint and the oil outlet joint, the oil inlet joints are respectively communicated with an oil inlet main pipe, and the oil outlet joints are respectively communicated with the oil outlet main pipe; the hydraulic installation body is provided with a plurality of second wheel seats at one end far away from the bidirectional pre-tensioning type hoisting mechanism, the second wheel seats are arranged in one-to-one correspondence with the first wheel seats, the second tensioning wheels are rotatably installed on the second wheel seats, the steel wire rope penetrates through the upper end of the first tensioning wheel and penetrates out of the lower end of the second tensioning wheel, and the steel wire rope is in contact with the corresponding positions of the peripheral surfaces of the first tensioning wheel and the second tensioning wheel respectively.
Further, the elastic guide mechanism comprises an assembly shaft which is arranged on the upper operation platform through a connecting seat, the assembly shaft transversely extends along the upper operation platform, a plurality of movable wheels are movably connected on the assembly shaft along the axial direction of the assembly shaft, wave springs are rotationally connected between the adjacent movable wheels, the movable wheels at two ends of the assembly shaft are connected with the corresponding end faces of the connecting seat through other two wave springs, the wave springs are sleeved on the assembly shaft, and a steel wire rope is in contact with the upper ends of the outer peripheral surfaces of the corresponding movable wheels.
Further, an assembly port is formed in the upper operation platform, and guide grooves extending transversely along the upper operation platform are respectively formed in two opposite sides of the assembly port; the upper non-return transmission mechanism comprises two second transverse adjustment cylinders which are oppositely arranged at two sides of the assembly port, a first assembly seat is arranged on a cylinder rod of each second transverse adjustment cylinder, limiting lugs are respectively constructed at two sides of the first assembly seat, each limiting lug is movably assembled in a corresponding guide groove, a first transmission shaft is rotatably arranged on the first assembly seat, and a plurality of first rope passing wheels are fixedly assembled on the first transmission shaft along the axial interval of the first transmission shaft.
Further, the lower non-return transmission mechanism comprises two second assembly seats correspondingly arranged below the two first assembly seats, a second transmission shaft is rotatably arranged on each second assembly seat, a plurality of second rope passing wheels are fixedly arranged on the second transmission shaft along the axial direction at intervals, and the second rope passing wheels are arranged in one-to-one correspondence with the first rope passing wheels and form rope passing wheel groups; when the number of the steel wire ropes passing through the first assembly seat and the second assembly seat is one, the end parts of the steel wire ropes detour through the rope wheel groups; when the number of the steel wire ropes passing through the first assembling seat and the second assembling seat is multiple, the end parts of the steel wire ropes detours through at least one rope passing wheel group.
Further, the first assembly seat and the second assembly seat are respectively provided with a non-return disc group, the non-return disc group comprises two rotating fluted discs which are respectively arranged at two ends of the first transmission shaft or the second transmission shaft, a plurality of first forward disc teeth and a plurality of first reverse disc teeth are respectively constructed on the end faces of the two rotating fluted discs which are far away from each other, electromagnetic non-return fluted discs are connected with the fixed seat through the fixed seat on the first assembly seat or the second assembly seat and the position corresponding to the rotating fluted disc, each electromagnetic non-return fluted disc is movably connected with the fixed seat through a plunger rod, a hard spring is sleeved outside the plunger rod, two ends of the hard spring are respectively connected with the electromagnetic non-return fluted disc and the fixed seat, a plurality of second reverse disc teeth or a plurality of second forward disc teeth are constructed on the end faces of the rotating fluted disc which are close to the electromagnetic non-return fluted disc, and the second reverse disc teeth are correspondingly arranged with the first forward disc teeth.
Further, the multidimensional adjusting mechanism comprises an adapter seat connected with the lower non-return transmission mechanism through two adapter rods, a lifting rod is rotatably connected to the adapter seat, a transmission gear is assembled on the lifting rod, a power motor is installed on the adapter seat, a driving gear is assembled on an output shaft of the power motor, the driving gear is meshed with the transmission gear, the lower end of the lifting rod is connected with the hanging bracket through an adapter arm, two ends of the adapter arm are respectively hinged with the lifting rod and the hanging bracket, a transverse cable-stayed oil cylinder and a longitudinal cable-stayed oil cylinder are respectively hinged on two adjacent sides of the lifting rod, and one ends, far away from the lifting rod, of the transverse cable-stayed oil cylinder and the longitudinal cable-stayed oil cylinder are hinged with the hanging bracket; the lifting frame comprises transverse lifting beams, longitudinal lifting beams are symmetrically connected to two ends of each transverse lifting beam, lifting cylinders are respectively arranged at two ends of each longitudinal lifting beam, and a plurality of lifting holes are formed in the longitudinal lifting beams and located on one side of each lifting cylinder.
Compared with the prior art, the invention adopts the structure, and the technical progress is that: the invention controls the bidirectional pre-tensioning type winding mechanism to act forward, so that the winding and unwinding of the steel wire rope are performed, the winding and unwinding amount of the steel wire rope is larger than the winding amount, and the winding and unwinding of the steel wire rope are stable under the tensioning of the hydraulic tensioning mechanism and the transverse adjustment of the hydraulic transverse rope adjusting mechanism, so that the lower non-return transmission mechanism gradually moves downwards, the lower non-return transmission mechanism drives the hanging bracket to move downwards through the multi-dimensional adjusting mechanism, the precast beam segment on the hanging bracket is further stably moved downwards to a preset position, the multi-dimensional adjusting mechanism is operated according to the alignment condition of the precast beam segment, the left-right elevation, front-back elevation, plane torsion and other multi-dimensional adjustment is performed on the hanging bracket, the position correction of the precast beam segment is realized, the end faces of the precast beam segment which are required to be connected are aligned, and then the splicing operation is performed, and the horizontal torsion function which cannot be realized by the traditional bridge machine is perfected. After the steel wire rope is completely wound, the bidirectional pre-tensioning type winding mechanism is reversely controlled to act, so that the steel wire rope is wound and unwound, the unwinding amount of the steel wire rope is smaller than the winding amount, and therefore, the lower non-return transmission mechanism gradually moves towards the upper non-return transmission mechanism, and after the lower non-return transmission mechanism moves to a preset position, the supporting running mechanism is controlled to act, so that the supporting running mechanism drives the whole splicing equipment to move to the next construction node, and the next hoisting and splicing operation is facilitated. And when the steel wire rope generates abrupt external force or breaks, the lower non-return transmission mechanism and the upper non-return transmission mechanism are interlocked, so that the condition that the precast beam section on the hanger falls off or inclines rapidly is avoided, and the occurrence of safety accidents is prevented. According to the invention, one or more steel wire ropes are kept under a preset tension force to be wound and unwound through the bidirectional pre-tensioning type winding mechanism, the hydraulic transverse rope adjusting mechanism, the hydraulic tensioning mechanism and the elastic guide mechanism, and the winding and unwinding amount is kept stable at all times, so that the situation of collision during splicing is avoided, and the extremely high engineering construction quality is ensured. In summary, the invention can accurately correct the lifted precast beam segments to accurately align with the positions required to be spliced, does not need other auxiliary correction equipment, and effectively improves the working efficiency and the engineering quality.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention with the steel wire rope removed;
FIG. 3 is a side view of the structure of an embodiment of the present invention;
FIG. 4 is a schematic diagram of the connection of the mounting platform, the bi-directional pre-tensioning hoisting mechanism, the hydraulic transverse rope adjusting mechanism, the hydraulic tensioning mechanism and the supporting running mechanism according to the embodiment of the invention;
FIG. 5 is a schematic view of the structure of FIG. 4 at another angle;
FIG. 6 is a schematic diagram of a bi-directional pretensioned hoisting mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a hydraulic transverse rope adjusting mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic view of another angle of a hydraulic transverse rope adjusting mechanism according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a hydraulic tensioning mechanism according to an embodiment of the present invention;
FIG. 10 is a schematic view of a hydraulic tensioning mechanism according to another embodiment of the present invention;
FIG. 11 is a schematic view of an elastic guiding mechanism according to an embodiment of the present invention;
FIG. 12 is a schematic view of an embodiment of the present invention in which an upper backstop transmission mechanism is mounted on an upper working platform;
FIG. 13 is a schematic view of a part of a work platform according to an embodiment of the present invention;
Fig. 14 is a schematic structural diagram of connection of a second lateral adjustment cylinder, a first assembly seat, a first transmission shaft and a plurality of first rope passing wheels in an upper non-return transmission mechanism according to an embodiment of the present invention;
FIG. 15 is a schematic view of the structure of the connection of the lower non-return transmission mechanism, the multidimensional adjustment mechanism and the hanger according to the embodiment of the present invention;
FIG. 16 is a schematic view of the structure of FIG. 15 at another angle;
FIG. 17 is a front view of a portion of the lower backstop drive mechanism coupled to a backstop disk assembly in accordance with an embodiment of the present invention;
fig. 18 is a schematic structural view of the split lower non-return transmission mechanism and the non-return disc set according to the embodiment of the present invention.
Marking parts: 100-mounting platform, 200-supporting running mechanism, 201-supporting column, 202-U-shaped sliding seat, 203-vertical supporting cylinder, 204-running driving cylinder, 205-rail holding seat, 300-bidirectional pre-tensioning type hoisting mechanism, 301-first supporting seat, 302-hoisting drum, 303-mounting shaft, 304-first tensioning winding drum, 305-second tensioning winding drum, 306-driving wheel, 400-hydraulic type transverse rope adjusting mechanism, 401-third supporting seat, 402-transverse mounting beam, 403-connecting edge, 404-bar hole, 405-first transverse adjusting cylinder, 406-rope guiding ring, 407-cylinder seat, 500-hydraulic type tensioning mechanism, 501-second supporting seat, 502-hydraulic mounting body, 503-jacking column, 504-first wheel seat, 505-first tensioning wheel, 506-second wheel seat, 507-second tensioning wheel, 508-oil inlet header, 509-oil inlet joint, 510-oil outlet header, 511-oil outlet joint, 600-upper working platform, 601-assembly port, 602-guide slot, 700-cat ladder, 800-elastic guide mechanism, 801-connecting seat, 802-assembly shaft, 803-free wheel, 804-wave spring, 900-upper non-return transmission mechanism, 901-first assembly seat, 902-limit lug, 903-first transmission shaft, 904-first rope passing wheel, 905-second transverse adjustment cylinder, 1000-lower non-return transmission mechanism, 1001-second assembly seat, 1002-second transmission shaft, 1003-second rope passing wheel, 1100-non-return disc group, 1101-rotating fluted disc, 1102-first forward disc tooth, 1103-fixed seat, 1104-inserted link, 1105-hard spring, 1106-outer housing, 1107-electromagnetic non-return fluted disc, 1108-second reverse disc tooth, 1200-multidimensional adjustment mechanism, 1201-lifting rod, 1202-transmission gear, 1203-power motor, 1204-driving gear, 1205-switching arm, 1206-transverse cable-stayed cylinder, 1207-longitudinal cable-stayed cylinder, 1300-lifting frame, 1301-transverse lifting beam, 1302-longitudinal lifting beam, 1303-lifting cylinder, 1304-lifting hole, 1400-lifting frame mounting rail, 1500-switching seat and 1501-switching link.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses hoisting equipment suitable for a double-U-box combined continuous beam of an urban rail bridge, which is shown in fig. 1 to 18 and comprises a mounting platform 100, an upper working platform 600, a bidirectional pre-tensioning hoisting mechanism 300, a hydraulic transverse rope adjusting mechanism 400, a hydraulic tensioning mechanism 500, an elastic guiding mechanism 800, an upper non-return transmission mechanism 900, a lower non-return transmission mechanism 1000, a multi-dimensional adjusting mechanism 1200, a hanging bracket 1300 and a supporting running mechanism 200. Wherein, the upper operation platform 600 is installed above one end of the installation platform 100 through a support frame, two ladders 700 are symmetrically installed on the support frame, one end of each ladder 700 is fixedly connected with the installation platform 100, and the other end of each ladder 700 is fixedly connected with the upper operation platform 600. The bidirectional pre-tensioning hoisting mechanism 300, the hydraulic transverse rope adjusting mechanism 400 and the hydraulic tensioning mechanism 500 are all arranged on the mounting platform 100, and are arranged at intervals along the longitudinal direction of the mounting platform 100 and towards the direction of the supporting frame. The elastic guide 800 and the upper backstop transmission 900 of the present invention are mounted on the upper work platform 600, and are disposed at intervals in the longitudinal direction of the upper work platform 600 and in the direction facing away from the mounting platform 100. The lower non-return transmission mechanism 1000 is disposed below the upper non-return transmission mechanism 900, and the lower non-return transmission mechanism 1000 is connected to the hanger 1300 via the multi-dimensional adjustment mechanism 1200, and the support running mechanism 200 is mounted on the lower end of the mounting platform 100. One end of one or more steel wire ropes unreeled by the bidirectional pre-tensioning type hoisting mechanism 300 sequentially passes through the hydraulic tensioning mechanism 500, the elastic guide mechanism 800, the upper non-return transmission mechanism 900, the lower non-return transmission mechanism 1000 and the hydraulic transverse rope adjusting mechanism 400 and is wound on the bidirectional pre-tensioning type hoisting mechanism 300. The two hanging basket mounting rails 1400 are symmetrically arranged on two sides of one end, far away from the mounting platform 100, of the upper working platform 600, two travelling cranes are respectively arranged on the two hanging basket mounting rails 1400, and a construction hanging basket is lifted at the lower ends of the two travelling cranes, so that constructors can conveniently splice, glue, and the like. The working principle and the advantages of the invention are as follows: the invention controls the bidirectional pre-tensioning type winding mechanism 300 to act in a forward direction, so that the bidirectional pre-tensioning type winding mechanism can unwind and wind the steel wire rope, the unwinding amount of the steel wire rope is larger than the winding amount, and the unwinding and winding of the steel wire rope are stable under the tensioning of the hydraulic tensioning mechanism 500 and the transverse adjustment of the hydraulic transverse rope adjusting mechanism 400, thus, the lower non-return transmission mechanism 1000 gradually moves downwards, the lower non-return transmission mechanism drives the hanging bracket 1300 to move downwards through the multi-dimensional adjusting mechanism 1200, the precast beam segments on the hanging bracket 1300 are stably moved downwards to the preset positions, and according to the alignment condition of the precast beam segments, the multidimensional adjustment mechanism 1200 is operated to perform multidimensional adjustment on the hanger 1300, thereby realizing position correction of the precast beam segments, aligning the end faces of the precast beam segments to be connected, and then performing splicing operation. After the completion, the bidirectional pre-tensioning type hoisting mechanism 300 is reversely controlled to act so as to reel and unreel the steel wire rope, and the unreeling amount of the steel wire rope is smaller than the reeling amount, so that the lower non-return transmission mechanism 1000 gradually moves towards the upper non-return transmission mechanism 900, and after the lower non-return transmission mechanism moves to a preset position, the supporting running mechanism 200 is controlled to act so as to drive the whole splicing equipment to move to the next construction node, thereby facilitating the next hoisting and splicing operation. And when the steel wire rope is subjected to abrupt external force or fracture, the lower non-return transmission mechanism 1000 and the upper non-return transmission mechanism 900 are interlocked, so that the condition that the precast beam segment on the hanger 1300 is rapidly fallen or inclined is avoided, and the occurrence of safety accidents is prevented. According to the invention, one or more steel wire ropes are kept under a preset tension force to be wound and unwound through the bidirectional pre-tensioning type winding mechanism 300, the hydraulic transverse rope adjusting mechanism 400, the hydraulic tensioning mechanism 500 and the elastic guide mechanism 800, and the winding and unwinding amount is kept stable at all times, so that the collision condition during splicing is avoided, and the extremely high engineering construction quality is ensured. In summary, the invention can accurately correct the lifted precast beam segments to accurately align with the positions required to be spliced, does not need other auxiliary correction equipment, and effectively improves the working efficiency and the engineering quality.
As a preferred embodiment of the present invention, the mounting platform 100 is a quadrilateral structure, as shown in FIG. 5. The support running mechanism 200 includes four support columns 201, and the four support columns 201 are mounted at four corners of the mounting platform 100 one by one. At the lower end of each support column 201 is mounted a U-shaped slider 202, which U-shaped slider 202 is snapped onto the rail and the U-shaped slider 202 is slidable on the rail. In this embodiment, a vertical support cylinder 203 is installed at the lower end of the installation platform 100 and located at one side of each support column 201, two support columns 201 located at the same end of the installation platform 100 are respectively provided with a running drive cylinder 204, each running drive cylinder 204 extends along the guiding direction of the track, and one end of each running drive cylinder 204 far away from the support column 201 is provided with a rail holding seat 205. The working principle and the advantages of the embodiment are as follows: when the lifting and splicing operation is performed, all the vertical support cylinders 203 are controlled to act, so that the support disc at the lower end of the cylinder rod of the vertical support cylinder 203 is supported at a preset position, and at the moment, each U-shaped sliding seat 202 can be buckled on a track or disconnected from the track, and the mounting platform 100 is supported by the vertical support cylinders 203 without relative displacement with the track, so that the lifting and splicing operation can be performed. When the splicing is finished and the construction operation of the next node is required to be carried out at the transfer position, all the vertical support cylinders 203 are controlled to act, so that the cylinder rods of the vertical support cylinders 203 drive the support plates to move upwards, in this way, the installation platform 100 drives the support columns 201 to gradually move downwards until the support plates connected with the vertical support cylinders 203 are suspended after all the U-shaped sliding seats 202 are buckled on the tracks, then the rail holding seat 205 is fixed on the tracks, and the two travel drive cylinders 204 are synchronously controlled to act, so that the two travel drive cylinders drive the whole splicing equipment to move along the tracks; when the rail holding seat 205 cannot move to a preset position at one time, the rail holding seat 205 can be separated from the rail after one movement is finished, the two travel driving oil cylinders 204 are controlled to synchronously shrink, the rail holding seat 205 is fixed with the rail after the rail holding seat is shrunk to the shortest position, and the two travel driving oil cylinders 204 are controlled to synchronously stretch; and repeating the steps until the whole assembling equipment moves to a preset position.
As a preferred embodiment of the present invention, as shown in fig. 6, the bi-directional pretensioned hoisting mechanism 300 includes a first support base 301 and two hoisting drums 302. The first supporting seat 301 is fixedly installed on the upper end surface of the installation platform 100, two winding drums 302 are symmetrically and rotatably installed on the first supporting seat 301 through installation shafts 303, first tensioning winding drums 304 are respectively configured at the mutually approaching ends of the two winding drums 302, second tensioning winding drums 305 are respectively configured at the mutually approaching ends of the two first tensioning winding drums 304, the two second tensioning winding drums 305 are connected through driving wheels 306, the radial length of the first tensioning winding drums 304 is smaller than that of the second tensioning winding drums 305, and the axes of the driving wheels 306, the first tensioning winding drums 304, the second tensioning winding drums 305 and the winding drums 302 are overlapped. In this embodiment, a driving motor (not shown) is mounted on the mounting platform 100, a driving wheel is mounted on an output shaft of the driving motor, and the driving wheel 306 can adopt a sprocket or a gear, and are in transmission connection through a chain or a meshing mode. One end of the wire rope of the present embodiment is unreeled from the winding drum 302 and wound up from the first tension winding drum 304 or the second tension winding drum 305. The working principle and the advantages of the embodiment are as follows: in this embodiment, when the precast beam segment is lifted or the precast beam segment below is lifted, the driving motor is controlled to act in the forward direction or the reverse direction, so that the driving wheel 306 drives the two winding drums 302 to rotate in the forward direction or the reverse direction, and when the control hanger 1300 moves downwards during the rotation of the winding drums 302, the winding drums 302 unwind, and the first tensioning winding drum 304 or the second tensioning winding drum 305 winds, so that the unwinding amount is far greater than the winding amount, and the purpose of lowering is achieved; when the lifting frame 1300 is controlled to move upwards, the winding drum 302 is wound, and the first tensioning winding drum 304 or the second tensioning winding drum 305 is unwound, so that the unwinding amount is far smaller than the winding amount, and the lifting purpose of the lifting frame 1300 is realized.
As a preferred embodiment of the present invention, as shown in fig. 7 and 8, the hydraulic lateral rope adjusting mechanism 400 includes a third support block 401, a lateral mounting beam 402, and a plurality of first lateral adjusting cylinders 405. The third support seat 401 is fixedly mounted on the upper end surface of the mounting platform 100, the transverse mounting beam 402 is mounted on the third support seat 401, connecting edges 403 are respectively configured on two sides of the transverse mounting beam 402, a plurality of strip-shaped holes 404 are formed in each connecting edge 403, the strip-shaped holes 404 are arranged at intervals along the length direction of the transverse mounting beam 402, and each strip-shaped hole 404 extends along the transverse length direction. The plurality of first lateral adjustment cylinders 405 in this embodiment are installed at the lower end of the lateral installation beam 402 at intervals along the length direction of the lateral installation beam 402, that is, a cylinder base 407 is fixed on the cylinder body of each first lateral adjustment cylinder 405, the corresponding positions of the cylinder base 407 and the two connecting edges 403 are connected by a plurality of fastening bolts, and fine adjustment of the connection position of the first lateral adjustment cylinder 405 and the lateral installation beam 402 can be achieved by unscrewing the fastening bolts. In this embodiment, a rope guide ring 406 is installed on the cylinder rod of each first lateral adjustment cylinder 405, and the end of the wire rope passes through the corresponding rope guide ring 406 and is then wound on the first tensioning winding drum 304 or the second tensioning winding drum 305. The working principle and the advantages of the embodiment are as follows: in this embodiment, the tightness degree of each wire rope is monitored by the hydraulic tensioning mechanism 500, and the wire ropes are tensioned to a predetermined tension force in time, so that the wire ropes are more than other wire ropes by a certain unreeling amount, in order to ensure that the unreeling amounts of the plurality of wire ropes are consistent, one or more corresponding first transverse adjustment cylinders 405 need to be controlled to be lengthened or shortened, so that the wire ropes are deflected and reeled on the first tensioning reeling drum 304 or the second tensioning reeling drum 305, and the deflected wire ropes are more than the non-deflected wire ropes under the condition that the mounting shaft 303 rotates by a certain angle, and then the gradual return of the hydraulic tensioning mechanism 500 is matched, so that the reeling amounts of all the wire ropes are consistent. In this embodiment, when the first tensioning reel 304 or the second tensioning reel 305 reels in the wire rope, the wire rope can be switched between the first tensioning reel 304 and the second tensioning reel 305, so as to adjust the allowance. In this embodiment, the operation process of lowering the hanging frame 1300 is mainly considered, because the lowering of the hanging frame 1300 is mainly used for performing operations such as assembly, connection, etc., and the required precision is higher; while the hanger 1300 continues to rise and empty or lifted, no greater precision is required.
As a preferred embodiment of the present invention, as shown in fig. 9 and 10, the hydraulic tensioning mechanism 500 includes a second support base 501, a hydraulic mounting body 502, a plurality of first tensioning wheels 505 and a plurality of second tensioning wheels 507, and the number of first tensioning wheels 505 and the number of second tensioning wheels 507 are the same. The second support seat 501 is fixedly mounted on the upper end surface of the mounting platform 100, and the hydraulic mounting body 502 is mounted on the second support seat 501. The hydraulic mounting body 502 of the present embodiment has a plurality of hydraulic driving chambers disposed in the lateral direction of the mounting platform 100 at intervals, each of which is provided with a lifting column 503, the lower end of the lifting column 503 extends into the hydraulic driving chamber, and the upper end of the lifting column 503 extends from the upper end of the hydraulic mounting body 502 in the vertical direction. In this embodiment, the first wheel seat 504 is installed at the upper end of each lifting column 503, and a pressure sensor is installed at the position where the lifting column 503 is connected to the first wheel seat 504, where the plurality of first tension wheels 505 are installed on the corresponding first wheel seat 504 one by one, and the first tension wheels 505 are rotatably connected to the first wheel seat 504. In this embodiment, the lower end and the lower side of each hydraulic driving cavity are respectively communicated with an oil inlet connector 509 and an oil outlet connector 511, electromagnetic valves are respectively installed on each oil inlet connector 509 and each oil outlet connector 511, each oil inlet connector 509 is respectively communicated with an oil inlet manifold 508, each oil outlet connector 511 is respectively communicated with an oil outlet manifold 510, and the oil inlet manifold 508 and the oil outlet manifold 510 are connected with a hydraulic pump station arranged on the mounting platform 100. In this embodiment, a plurality of second wheel seats 506 are installed at one end of the hydraulic installation body 502 far away from the bidirectional pre-tensioning hoisting mechanism 300, each second wheel seat 506 is disposed in one-to-one correspondence with the first wheel seat 504, the plurality of second tensioning wheels 507 are installed on the corresponding second wheel seat 506 one-to-one, and the second tensioning wheels 507 are rotationally connected with the second wheel seat 506. The steel wire rope of this embodiment passes through the upper end of the first tensioning wheel 505 and passes out of the lower end of the second tensioning wheel 507, and the steel wire rope contacts with corresponding positions of the peripheral surfaces of the first tensioning wheel 505 and the second tensioning wheel 507 respectively. The working principle and the advantages of the embodiment are as follows: in the process of lowering the precast beam segment, due to the interaction of the steel wire rope and the first tensioning wheel 505, the pressure sensor monitors the stress of the first tensioning wheel 505 at any time, when the stress changes, the corresponding electromagnetic valve is opened, the corresponding lifting column 503 ascends or descends, the tensioning degree of the steel wire rope is further adjusted, and when the numerical value of the pressure sensor reaches a preset range, the tensioning degree of the steel wire rope is also shown to be in the preset range, and then the corresponding electromagnetic valve is automatically closed. In this embodiment, since the steel wire rope passes through the upper end of the first tensioning wheel 505 and passes through the lower end of the second tensioning wheel 507, when the steel wire rope is disturbed by external force and shakes, the steel wire rope cannot separate from the first tensioning wheel 505 and/or the second tensioning wheel 507 under the limitation of the first tensioning wheel 505 and the second tensioning wheel 507.
As a preferred embodiment of the present invention, as shown in fig. 11, the elastic guide mechanism 800 includes a connection base 801, an assembly shaft 802, a plurality of running wheels 803, and a plurality of wave springs 804. Wherein, the connection base 801 is fixedly installed on the upper working platform 600, and the assembly shaft 802 is fixedly installed on the connection base 801, and the assembly shaft 802 extends along the lateral direction of the upper working platform 600. The plurality of running wheels 803 are movably connected to the assembly shaft 802 along the axial direction of the assembly shaft 802, each wave spring 804 is disposed between two adjacent running wheels 803, two ends of the wave spring 804 are rotatably connected to the two running wheels 803, and the running wheels 803 at two ends of the assembly shaft 802 are connected to corresponding end surfaces of the connecting seat 801 through the other two wave springs 804. Each wave spring 804 of the present embodiment is sleeved on the assembly shaft 802, and the wire rope is in contact with the upper end of the outer peripheral surface of the corresponding running wheel 803. The working principle and the advantages of the embodiment are as follows: because one or more steel wires move from one layer of the installation platform 100 to one layer of the upper operation platform 600, the deflection angle of the steel wires can change by a certain amount, so that the steel wires drive the movable wheel 803 to move along the axial direction of the assembly shaft 802 due to the arrangement of the movable wheel 803, and the steel wires are prevented from being separated from the movable wheel 803. Moreover, the wave spring 804 plays a role in buffering in the process, so that the condition that the tension of the steel wire rope suddenly changes to cause the steel wire rope to jump is avoided, and the lifted material is prevented from shaking. In this embodiment, the wave spring 804 is mainly used to make use of the strong torsion resistance of the wave spring 804, so that torsion is not easy to occur in the process of rotating the running wheel 803.
As a preferred embodiment of the present invention, as shown in fig. 12 to 14, an assembly port 601 is formed in the upper work platform 600, and guide grooves 602 are formed on two opposite sides (two sides in the front-rear direction) of the assembly port 601, respectively, each guide groove 602 extending in the lateral direction of the upper work platform 600. The upper non-return transmission mechanism 900 of the present embodiment includes two second lateral adjustment cylinders 905, where the two second lateral adjustment cylinders 905 are disposed on two sides of the assembly port 601, and the cylinder body of the second lateral adjustment cylinder 905 is fixedly connected with the upper working platform 600. A first mount 901 is mounted on the cylinder rod of each second lateral adjustment cylinder 905, and restricting lugs 902 are respectively configured on both sides of the first mount 901, and each restricting lug 902 is movably fitted in the corresponding guide groove 602. A first transmission shaft 903 is rotatably mounted to the first mount 901, and a plurality of first sheave wires 904 are mounted to the first transmission shaft 903, and the first sheave wires 904 are disposed at intervals in the axial direction of the first transmission shaft 903. The working principle and the advantages of the embodiment are as follows: in this embodiment, when the hoisting and splicing operations are performed, the second lateral adjustment cylinder 905 can be controlled to drive the corresponding first assembly seat 901, so that the steel wire rope passing through the first rope passing wheel 904 is deflected to a certain extent, and then the posture of the hanger 1300 is corrected by the lower non-return transmission mechanism 1000 and the multidimensional adjustment mechanism 1200. However, when the adjustment is not performed under the general condition, generally when the hoisted precast beam segment collides or contacts with the target surface, the steel wire rope can be loosened to a certain extent, and at the moment, the two second transverse adjustment cylinders 905 are controlled to act synchronously, so that the steel wire rope part between the upper non-return transmission mechanism 900 and the lower non-return transmission mechanism 1000 is tensioned, and the condition that the steel wire rope jumps is avoided.
As a preferred embodiment of the present invention, as shown in fig. 15 to 17, the lower non-return transmission mechanism 1000 includes two second fitting seats 1001 provided correspondingly under the two first fitting seats 901, and a second transmission shaft 1002 is rotatably mounted on each second fitting seat 1001. A plurality of second sheave portions 1003 are fixedly mounted on each second transmission shaft 1002, and the second sheave portions 1003 are arranged at intervals in the axial direction of the second transmission shaft 1002. The second rope passing wheels 1003 are arranged in one-to-one correspondence with the first rope passing wheels 904, and form rope passing wheel groups. When the number of the steel wire ropes passing through the first assembly seat 901 and the second assembly seat 1001 is one, the end parts of the steel wire ropes detours through the rope passing wheel sets; when there are a plurality of wire ropes passing through the first mount 901 and the second mount 1001, the ends of the wire ropes detour through at least one rope passing wheel group. According to the embodiment, two or more steel wire ropes can be selected for lifting according to the weight of the precast beam segment, and the steel wire ropes are roundabout and alternately pass through the first rope passing wheels 904 and the second rope passing wheels 1003, so that the steel wire ropes are always kept in a tensioning state between the upper non-return transmission mechanism 900 and the lower non-return transmission mechanism 1000, and in the unreeling or reeling process of the steel wire ropes, the steel wire ropes are always in a stable motion state, and therefore the assembly precision is ensured.
As a preferred embodiment of the present invention, as shown in fig. 16 to 18, a check disc set 1100 is mounted on each of the first mount 901 and the second mount 1001. The non-return disc set 1100 includes two rotary fluted discs 1101 respectively mounted at two ends of the first transmission shaft 903 or the second transmission shaft 1002, and a plurality of first forward disc teeth 1102 and a plurality of first reverse disc teeth are respectively configured on end surfaces of the two rotary fluted discs 1101, which are far away from each other. A fixed seat 1103 is connected to the first assembly seat 901 or the second assembly seat 1001 at the position corresponding to the rotary fluted disc 1101, an electromagnetic non-return fluted disc 1107 is connected to the fixed seat 1103, a housing 1106 is constructed on each electromagnetic non-return fluted disc 1107, the housing 1106 is made of metal alloy without magnetic absorption capability, an inserting rod 1104 is fixedly connected to the housing 1106, the inserting rod 1104 is movably connected with the fixed seat 1103, namely one end of the inserting rod 1104 is movably inserted on the fixed seat 1103, and the cross section of the inserting rod 1104 is a regular polygon. A rigid spring 1105 is sleeved outside the inserted rod 1104, and two ends of the rigid spring 1105 are respectively connected with an electromagnetic non-return fluted disc 1107 and a fixed seat 1103. In this embodiment, a plurality of second reverse teeth 1108 or a plurality of second forward teeth are configured on the end surface of the electromagnetic non-return tooth disc 1107 near the corresponding rotating tooth disc 1101, where the second reverse teeth 1108 are disposed corresponding to the first forward teeth 1102, and the second forward teeth are disposed corresponding to the first reverse teeth. When the hanging bracket 1300 is put down, one of the electromagnetic non-return fluted discs 1107 is electrified, so that the first forward facing tooth 1102 and the second reverse facing tooth 1108 are close to each other, the mutually matched rotating fluted disc 1101 and electromagnetic non-return fluted disc 1107 cannot block the first transmission shaft 903 or the second transmission shaft 1002 in the forward rotating process, namely, after the first forward facing tooth 1102 and the second reverse facing tooth 1108 are contacted, the hard spring 1105 stretches in a clearance mode under the relative rotation extrusion of the first forward facing tooth 1102 and the second reverse facing tooth 1108, but in the process; when the first transmission shaft 903 or the second transmission shaft 1002 rotates reversely under an incorrect operation or an external force, the first forward teeth 1102 and the second reverse teeth 1108 are engaged, thereby preventing the first transmission shaft 903 or the second transmission shaft 1002 from rotating reversely. When the lifting operation of the lifting frame 1300 is performed, the other electromagnetic non-return fluted disc 1107 is electrified, so that the second forward facing disc tooth and the first reverse facing disc tooth are close to each other, and in the process of reversely rotating the first transmission shaft 903 or the second transmission shaft 1002, the mutually matched rotating fluted disc 1101 and the electromagnetic non-return fluted disc 1107 cannot block the second forward facing disc tooth and the first reverse facing disc tooth, namely after the second forward facing disc tooth and the first reverse facing disc tooth are contacted, the hard spring 1105 stretches in a clearance mode under the relative rotation extrusion of the second forward facing disc tooth and the first reverse facing disc tooth; however, in this process, when the first transmission shaft 903 or the second transmission shaft 1002 rotates in the forward direction under an erroneous operation or an external force, the second forward direction disk teeth are engaged with the first reverse direction disk teeth, thereby preventing the first transmission shaft 903 or the second transmission shaft 1002 from rotating in the forward direction. When the steel wire rope breaks or loosens or jumps greatly, the corresponding pressure sensor transmits signals to the controller, and the controller controls all the electromagnetic non-return fluted discs 1107 to be electrified and firmly absorbed on the corresponding rotating fluted disc 1101, so that the first transmission shaft 903 and the second transmission shaft 1002 stop rotating, and therefore, as the steel wire rope is in roundabout and alternate connection with each first rope passing wheel 904 and each second rope passing wheel 1003 in the upper non-return transmission mechanism 900 and the lower non-return transmission mechanism 1000, the steel wire rope is prevented from being separated quickly, and safety accidents are caused.
As a preferred embodiment of the present invention, as shown in fig. 15 and 16, the multidimensional adjustment mechanism 1200 includes a adaptor 1500, a lifting rod 1201, a power motor 1203, a adaptor arm 1205, a lateral cable-stayed cylinder 1206 and a longitudinal cable-stayed cylinder 1207. The adaptor 1500 is connected to the lower non-return transmission mechanism 1000 through two adaptor rods 1501, the lifting rod 1201 is rotatably connected to the adaptor 1500, the lifting rod 1201 is provided with a transmission gear 1202, the power motor 1203 is mounted on the adaptor 1500, the output shaft of the power motor 1203 is provided with a driving gear 1204, and the driving gear 1204 is meshed with the transmission gear 1202. The lower end of the lifting rod 1201 of the embodiment is connected with the lifting frame 1300 through the switching arm 1205, two ends of the switching arm 1205 are respectively hinged with the lifting rod 1201 and the lifting frame 1300, the transverse cable-stayed cylinder 1206 and the longitudinal cable-stayed cylinder 1207 are respectively hinged on two adjacent sides of the lifting rod 1201, and one ends of the transverse cable-stayed cylinder 1206 and the longitudinal cable-stayed cylinder 1207, which are far away from the lifting rod 1201, are hinged with the lifting frame 1300. The working principle and the advantages of the embodiment are as follows: in this embodiment, the inclination angle of the hanger 1300 in the transverse direction is adjusted through the transverse cable-stayed cylinder 1206, that is, the inclination of the hanger 1300 in the left-right direction is corrected, the inclination angle of the hanger 1300 in the longitudinal direction is adjusted through the longitudinal cable-stayed cylinder 1207, that is, the inclination of the hanger 1300 in the front-back direction is corrected, the lifting rod 1201 is driven to rotate by a certain angle through the power motor 1203 in a gear mode, the lifting rod 1201 drives the lifting rod to rotate by a certain angle, and the deflection of the precast beam segment on the hanger 1300 in the horizontal direction is corrected. The hanger of the embodiment comprises a transverse hanging beam 1301, longitudinal hanging beams 1302 are symmetrically connected to two ends of the transverse hanging beam 1301, lifting cylinders 1303 are respectively installed at two ends of each longitudinal hanging beam 1302, and a plurality of lifting holes 1304 are formed in the longitudinal hanging beams 1302 and located on one side of each lifting cylinder 1303. In this embodiment, a lifting appliance such as a lifting hook or a lifting ring can be connected with the longitudinal lifting beam 1302 through the lifting hole 1304, so as to lift a material with a relatively large weight. Or the lifting hook or lifting ring and other lifting appliances are arranged on each lifting cylinder 1303, so that the materials with smaller weight are lifted, and the postures of the materials can be finely adjusted.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. Hoisting equipment suitable for two U case combination continuous beams of urban rail bridge, its characterized in that: the device comprises an upper operation platform which is arranged above one end of an installation platform through a support frame, wherein a bidirectional pre-tensioning type hoisting mechanism, a hydraulic type transverse rope adjusting mechanism and a hydraulic type tensioning mechanism are arranged on the installation platform at intervals in the direction facing the support frame, an elastic guide mechanism and an upper non-return transmission mechanism are arranged on the upper operation platform at intervals along the horizontal direction and the direction facing away from the installation platform, a lower non-return transmission mechanism is arranged below the upper non-return transmission mechanism, the lower non-return transmission mechanism is connected with a hanging bracket through a multi-dimensional adjusting mechanism, and a support running mechanism is arranged at the lower end of the installation platform; one end of one or more steel wire ropes unreeled by the bidirectional pre-tensioning type hoisting mechanism sequentially passes through the hydraulic tensioning mechanism, the elastic guide mechanism, the upper non-return transmission mechanism, the lower non-return transmission mechanism and the hydraulic transverse rope adjusting mechanism and is wound on the bidirectional pre-tensioning type hoisting mechanism; the bidirectional pre-tensioning winding mechanism comprises a first supporting seat fixedly arranged on the upper end surface of a mounting platform, two winding drums are respectively and symmetrically arranged on the first supporting seat in a rotating way through a mounting shaft, a first tensioning winding drum is respectively constructed at the mutually approaching ends of the two winding drums, a second tensioning winding drum is respectively constructed at the mutually approaching ends of the two first tensioning winding drums, the two second tensioning winding drums are connected through a driving wheel, the radial length of each first tensioning winding drum is smaller than that of the second tensioning winding drum, the axes of the driving wheel, the first tensioning winding drum, the second tensioning winding drum and the winding drum are overlapped, one end of a steel wire rope is unreeled by the winding drum, and is wound by the first tensioning winding drum or the second tensioning winding drum; the hydraulic type transverse rope adjusting mechanism comprises a third supporting seat fixedly arranged on the upper end face of the mounting platform, transverse mounting beams are arranged on the third supporting seat, connecting edges are respectively constructed on two sides of the transverse mounting beams, a plurality of strip-shaped holes are formed in the connecting edges at intervals along the length direction of the transverse mounting beams, each strip-shaped hole extends along the transverse length direction, a plurality of first transverse adjusting cylinders are arranged at intervals along the length direction of the lower end of the transverse mounting beams, a rope guide ring is arranged on a cylinder rod of each first transverse adjusting cylinder, and the end part of a steel wire rope passes through the corresponding rope guide ring and then is wound on a first tensioning winding drum or a second tensioning winding drum; the hydraulic tensioning mechanism comprises a second supporting seat fixedly arranged on the upper end face of the mounting platform, a hydraulic mounting body is arranged on the second supporting seat, the hydraulic mounting body is provided with a plurality of hydraulic driving cavities which are arranged along the transverse direction of the mounting platform at intervals, jacking columns with the upper ends extending out of the hydraulic driving cavities vertically are arranged in the hydraulic driving cavities, a first wheel seat is arranged at the upper end of each jacking column, a pressure sensor is arranged at the position where the jacking column is connected with the first wheel seat, a first tensioning wheel is rotatably arranged on the first wheel seat, an oil inlet joint and an oil outlet joint are respectively communicated with the lower end and the lower side face of each hydraulic driving cavity, electromagnetic valves are respectively arranged on the oil inlet joint and the oil outlet joint, each oil inlet joint is respectively communicated with an oil inlet main pipe, and each oil outlet joint is respectively communicated with an oil outlet main pipe; a plurality of second wheel seats are arranged at one end of the hydraulic installation body far away from the bidirectional pre-tensioning type hoisting mechanism, the second wheel seats are arranged in one-to-one correspondence with the first wheel seats, second tensioning wheels are rotatably installed on the second wheel seats, a steel wire rope penetrates through the upper end of the first tensioning wheel and penetrates out of the lower end of the second tensioning wheel, and the steel wire rope is contacted with corresponding positions of the peripheral surfaces of the first tensioning wheel and the second tensioning wheel respectively; the multi-dimensional adjusting mechanism comprises an adapter seat connected with a lower non-return transmission mechanism through two adapter rods, a lifting rod is rotatably connected to the adapter seat, a transmission gear is assembled on the lifting rod, a power motor is installed on the adapter seat, a driving gear is assembled on an output shaft of the power motor, the driving gear is meshed with the transmission gear, the lower end of the lifting rod is connected with a hanging bracket through an adapter arm, two ends of the adapter arm are respectively hinged with the lifting rod and the hanging bracket, a transverse cable-stayed oil cylinder and a longitudinal cable-stayed oil cylinder are respectively hinged to two adjacent sides of the lifting rod, and one ends of the transverse cable-stayed oil cylinder and the longitudinal cable-stayed oil cylinder, which are far away from the lifting rod, are hinged with the hanging bracket; the lifting frame comprises transverse lifting beams, longitudinal lifting beams are symmetrically connected to two ends of each transverse lifting beam, lifting cylinders are respectively arranged at two ends of each longitudinal lifting beam, and a plurality of lifting holes are formed in the longitudinal lifting beams and located on one side of each lifting cylinder.
2. The hoisting device for the double-U-box combined continuous beam of the urban rail bridge according to claim 1, wherein: the mounting platform is quadrilateral structure, the support running mechanism includes four support columns of one-to-one installation in mounting platform four corners department, installs the U type slide of lock on the track in the lower extreme of each support column, installs vertical support hydro-cylinder in the lower extreme of mounting platform and be located one side of each support column, installs respectively on two support columns that are located the mounting platform homoend and walk the driving hydro-cylinder, each walk the driving hydro-cylinder and extend along orbital direction, walk the driving hydro-cylinder and keep away from the one end of support column and install the rail seat of holding.
3. The hoisting device for the double-U-box combined continuous beam of the urban rail bridge according to claim 1, wherein: the elastic guide mechanism comprises an assembly shaft which is arranged on the upper operation platform through a connecting seat, the assembly shaft transversely extends along the upper operation platform, a plurality of movable wheels are movably connected on the assembly shaft along the axial direction of the assembly shaft, wave springs are rotationally connected between the adjacent movable wheels, the movable wheels at two ends of the assembly shaft are connected with the corresponding end faces of the connecting seat through other two wave springs, the wave springs are sleeved on the assembly shaft, and a steel wire rope is contacted with the upper ends of the outer peripheral surfaces of the corresponding movable wheels.
4. The hoisting device for the double-U-box combined continuous beam of the urban rail bridge according to claim 1, wherein: an assembly port is formed in the upper operation platform, and guide grooves extending transversely along the upper operation platform are respectively formed in two opposite sides of the assembly port; the upper non-return transmission mechanism comprises two second transverse adjustment cylinders which are oppositely arranged at two sides of the assembly port, a first assembly seat is arranged on a cylinder rod of each second transverse adjustment cylinder, limiting lugs are respectively constructed at two sides of the first assembly seat, each limiting lug is movably assembled in a corresponding guide groove, a first transmission shaft is rotatably arranged on the first assembly seat, and a plurality of first rope passing wheels are fixedly assembled on the first transmission shaft along the axial interval of the first transmission shaft.
5. The hoisting device for the double-U-box combined continuous beam of the urban rail bridge according to claim 4, wherein: the lower non-return transmission mechanism comprises two second assembly seats which are correspondingly arranged below the two first assembly seats, a second transmission shaft is rotatably arranged on each second assembly seat, a plurality of second rope passing wheels are fixedly arranged on the second transmission shaft along the axial direction of the second transmission shaft at intervals, and the second rope passing wheels are arranged in one-to-one correspondence with the first rope passing wheels and form rope passing wheel groups; when the number of the steel wire ropes passing through the first assembly seat and the second assembly seat is one, the end parts of the steel wire ropes detour through the rope wheel groups; when the number of the steel wire ropes passing through the first assembling seat and the second assembling seat is multiple, the end parts of the steel wire ropes detours through at least one rope passing wheel group.
6. The hoisting device for the double-U-box combined continuous beam of the urban rail bridge according to claim 5, wherein: the electromagnetic non-return fluted disc is characterized in that a non-return fluted disc set is respectively arranged on the first assembly seat and the second assembly seat, the non-return fluted disc set comprises two rotary fluted discs respectively arranged at two ends of the first transmission shaft or the second transmission shaft, a plurality of first forward fluted disc teeth and a plurality of first reverse fluted disc teeth are respectively constructed on the end faces of the two end faces, far away from each other, of the rotary fluted discs, electromagnetic non-return fluted discs are connected with the first assembly seat or the second assembly seat through fixing bases and correspond to the rotary fluted discs, each electromagnetic non-return fluted disc is movably connected with the fixing bases through a inserted bar, a hard spring is sleeved outside the inserted bar, two ends of the hard spring are respectively connected with the electromagnetic non-return fluted disc and the fixing bases, a plurality of second reverse fluted disc teeth or a plurality of second forward fluted disc teeth are constructed on the end faces of the electromagnetic non-return fluted disc, which are close to the corresponding rotary fluted disc, and the second forward fluted disc teeth are correspondingly arranged with the first forward fluted disc teeth.
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| CN202410327468.5A CN117945293B (en) | 2024-03-21 | 2024-03-21 | Hoisting equipment suitable for double U-box combined continuous beam of urban rail bridge |
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