CN215104784U - Prefabricated bridge prefabricated construction installation device - Google Patents

Abstract

The application relates to an assembled bridge prefabrication structure installation device includes: the installation base is used for being connected with the overhead travelling crane; one end of the rotating shaft penetrates through the mounting seat, the other end of the rotating shaft is used for being connected with a workpiece, and the rotating shaft is rotatably connected with the mounting seat through a limiting piece; the limiting piece comprises a connecting block, the connecting block is sleeved on one end of the rotating shaft, which is far away from the workpiece, and the lower surface of the connecting block and the mounting base form a baffle; the driving assembly is connected with the rotating shaft and is used for driving the rotating shaft to rotate around the axis of the rotating shaft. The present application has the effect of making the prefabricated bridge deck section rotate more safely.

Description

Prefabricated bridge prefabricated construction installation device

Technical Field

The application relates to the technical field of bridge construction, in particular to an assembly type bridge prefabricated structure installation device.

Background

The bridge is a building which is erected to span mountain stream, unfavorable geology or meet other traffic needs and enables traffic to be more convenient, generally, the bridge is composed of an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for crossing obstacles, the bridge span structure is formed by splicing a plurality of prefabricated bridge decks along the direction along the bridge, and in the process, a bridge erecting machine is used for installing the prefabricated bridge decks.

In the related art, the bridge girder erection machine comprises main girders, cross girders, crown blocks and lifting appliances, wherein the main girders are vertically arranged, two groups of the main girders are symmetrically arranged relative to the bridge direction, and a plurality of the main girders in each group are uniformly arranged along the bridge direction; the cross beams are fixed on the upper ends of the main beams, and one cross beam is fixed with the main beams in the same group; two ends of the crown block are respectively connected with the cross beams on the two groups of main beams in a sliding manner, the sliding direction of the crown block is parallel to the direction along the bridge, and the crown block is also provided with a lifting piece; the lifting appliance is fixedly connected with the crown block through the lifting piece and is also fixedly connected with the prefabricated bridge deck.

Prefabricated decking is prefabricated with the horizontal bridge of bridge to full width when the preparation, so when installation along the bridge to the segmentation installation, then when the prefabricated decking of installation, fix prefabricated decking on the hoist earlier, and make the length direction of prefabricated decking be on a parallel with the horizontal bridge of whole bridge, start the lifter after that, make prefabricated decking rise, then start the overhead traveling crane, make prefabricated decking remove to the assigned position, after waiting to reach the assigned position, make prefabricated decking fall to and the bridge beam face between the distance be 1m through the lifter, artificially pull prefabricated decking, make prefabricated decking rotatory 90 degrees, when the length direction of waiting to prefabricate the shingle is on a parallel with the horizontal bridge of whole bridge, alright fall prefabricated decking and install on the assigned position, thereby just accomplish the installation work of prefabricated decking.

In view of the above-mentioned related art, the inventor believes that there is a defect in that there is a great safety risk in such a manner of installing a prefabricated bridge deck in that the prefabricated bridge deck is rotated by means of manual pulling.

Disclosure of Invention

In order to be able to rotate the prefabricated bridge deck more safely, the application provides an assembly type bridge prefabricated construction installation device.

The application provides a pair of prefabricated bridge prefabricated construction installation device adopts following technical scheme:

an assembly type bridge girder prefabricated structure installation device, comprising: the device comprises a mounting seat, a rotating shaft, a limiting piece and a driving assembly, wherein the mounting seat is used for being connected with a crown block; one end of the rotating shaft penetrates through the mounting seat, the other end of the rotating shaft is used for being connected with a workpiece, and the rotating shaft is rotatably connected with the mounting seat through a limiting piece; the limiting piece comprises a connecting block, the connecting block is sleeved on one end, away from the workpiece, of the rotating shaft, and the lower surface of the connecting block and the mounting base form a baffle; the driving assembly is connected with the rotating shaft and is used for driving the rotating shaft to rotate around the axis of the rotating shaft.

By adopting the technical scheme, the rotating shaft is rotatably connected with the mounting seat in a bearing capacity due to the arrangement of the limiting piece, when the front truck transports the prefabricated bridge deck to the designated position along the bridge direction, the prefabricated bridge deck can be gradually dropped, and when the distance between the prefabricated bridge deck and the bridge beam surface is 1m, the rotating shaft can be rotated around the axis of the rotating shaft through the driving assembly, thereby the prefabricated bridge deck can rotate, when the length direction of the prefabricated bridge deck is parallel to the transverse direction of the bridge, the prefabricated bridge deck can be installed at the designated position, compared with the manual pulling mode, the design mode, the prefabricated bridge deck is not easy to displace in the horizontal direction in the rotating process, so that the prefabricated bridge deck is not easy to collide with workers or machinery on a construction site, and further is not easy to cause safety accidents.

Preferably, the driving assembly comprises a driving motor, a driving gear and a driven gear, and the driving motor is arranged on the mounting seat; the driving gear is fixedly sleeved on an output shaft of the driving motor; the driven gear is sleeved on the rotating shaft and meshed with the driving gear.

Through adopting above-mentioned technical scheme, when will rotating prefabricated decking, can start driving motor, then driving motor just can take the driving gear to rotate, then under driving gear and driven gear's cooperation, just can make the pivot rotate around the axis of self, thereby reach and carry out rotatory purpose with prefabricated decking, in addition because prefabricated decking is the reinforced concrete material, so certain weight has, so select gear drive's mode, also make the pivot more steady at the pivoted in-process, and then also help promoting the security among the work progress.

Preferably, the driving motor and the driving gear are uniformly arranged in plurality along the axial direction of the rotating shaft, and the driving gears are meshed with the driven gear.

Through adopting above-mentioned technical scheme, because the weight of prefabricated decking is great, so drive driven gear's mode through a plurality of driving gears, make the driving gear can provide bigger torque and act on in the pivot on the one hand to can make prefabricated decking rotate more smoothly, on the other hand, a plurality of drive motors can share work load jointly, thereby make the difficult overload condition that appears of driving motor, help promoting assembled bridge prefabricated construction installation device's life.

Preferably, the driven gear comprises a connecting sleeve and a gear ring, and the connecting sleeve is sleeved on the rotating shaft; the gear ring is sleeved on the connecting sleeve and detachably connected with the connecting sleeve.

Through adopting above-mentioned technical scheme, because of being the heavy load transmission form between driving gear and the driven gear, so after the live time is of a specified duration, the condition of wearing and tearing can appear in the driven gear tooth, so this kind of design, after the condition of wearing and tearing appears in the driven gear tooth, only need with the gear circle pull down and change can to can save the cost of routine maintenance installation device.

Preferably, the mounting seat is provided with a through hole for the rotating shaft to penetrate through; the limiting piece comprises a bearing block and a thrust bearing, and the bearing block is arranged on the inner wall of the through hole; the thrust bearing is arranged on the upper surface of the bearing block, and one end of the rotating shaft, which is positioned in the through hole, is also arranged on the inner ring of the thrust bearing in a penetrating way; the connecting block is positioned on one side of the thrust bearing, which is far away from the bearing block, and is fixedly connected with one end of the rotating shaft, which is positioned in the through hole; and the lower surface of the connecting block is provided with a matching groove, the inner side wall of the matching groove is sleeved on the outer ring of the thrust bearing, and the groove bottom of the matching groove is abutted to the upper surface of the thrust bearing.

Through adopting above-mentioned technical scheme, on the one hand fenestrate setting, make the pivot difficult for exposing externally with the rotation junction of mount pad, so need set up the carrier block in the perforation in order to be used for separating the fender to the connecting block formation, thereby form the rotation connected mode that has certain bearing capacity, on the other hand thrust bearing's setting, can make the rotation between connecting block and the carrier block more smooth, thereby when prefabricated decking is rotatory, the pivot is difficult for driving the mount pad and takes place to rotate, so if reach the mode of lifting up the mount pad through pulley hoisting accessory, the difficult winding of rope on the pulley hoisting accessory is in the same place, and then help protecting the construction equipment between mount pad and the overhead traveling crane.

Preferably, a lifting appliance is hinged to one end, away from the mounting seat, of the rotating shaft, and a connecting piece for fixedly connecting the lifting appliance with the prefabricated bridge deck is further arranged on the lifting appliance; the rotating shaft is also provided with a telescopic piece with the length capable of changing, one end of the telescopic piece is hinged with the rotating shaft, and the other end of the telescopic piece is hinged with the lifting appliance.

Through adopting above-mentioned technical scheme, when the prefabricated decking of installation, can make hoist length direction's both ends fix respectively on prefabricated decking length direction's both ends, then when transporting prefabricated decking to the assigned position on through the overhead traveling crane, can rotate 90 degrees with prefabricated decking earlier, make the length direction of prefabricated decking and the horizontal bridge of bridge be parallel to each other, after that, the prefabricated decking falls gradually, at this in-process, the accessible changes the length of extensible member, make the degree of inclination between the hoist length direction both ends change, thereby alright change the degree of inclination of prefabricated decking horizontal slope, compare in the mode that the manual work was dragged, this kind of design, on the one hand can promote the installation effectiveness of decking, on the other hand can promote the installation accuracy of horizontal slope, help promoting construction quality.

Preferably, the telescopic part comprises a hydraulic cylinder, a shell of the hydraulic cylinder is hinged to the lifting appliance, and a piston rod of the hydraulic cylinder is hinged to the rotating shaft.

Through adopting above-mentioned technical scheme, then when the piston rod of pneumatic cylinder stretches out, just reach the purpose that changes self length to alright change the degree of inclination between hoist length direction both ends, this kind of design, then when the hoist receives external force and makes the degree of inclination change, because of the self characteristic of pneumatic cylinder, then the length of pneumatic cylinder self can take place the adaptability and change in order to weaken the outside influence to the pneumatic cylinder, thereby can promote the adaptability of extensible member.

Preferably, the rotating shaft comprises a rotating part and a hinge part, one end of the rotating part is arranged on the mounting seat in a penetrating mode and is rotatably connected with the mounting seat through a limiting part, and the other end of the rotating part is located outside the mounting seat; one end of the hinge part is hinged with one end of the rotary part, which is positioned outside the mounting seat, and the other end of the hinge part is hinged with the lifting appliance, and the rotary planes at the two hinged parts are parallel to each other; the hinged position of the hydraulic cylinder and the rotating shaft is positioned on the hinged part, and the hydraulic cylinder and the hinged position of the rotating part and the hinged part are not on the same rotating axis.

Through adopting above-mentioned technical scheme, when perhaps shortening because of the pneumatic cylinder extension, the junction of pivot and pneumatic cylinder can receive certain effort, and keep away from hoist one end because of the pivot and rotate with the mount pad and be connected, so the junction of pivot and mount pad can receive certain moment of flexure, so the mode that the junction of pneumatic cylinder and pivot is located articulated portion, the pneumatic cylinder is applyed and is changeed epaxial effort and can make articulated portion and gyration portion take place relative rotation, thereby can weaken the moment of flexure that pivot and mount pad junction received, and then the connection structure between pivot and the mount pad is difficult to be destroyed.

Preferably, the connecting piece comprises a connecting rod, a stop block and an elastic piece, one end of the connecting rod penetrates through the lifting appliance, and the other end of the connecting rod is fixedly connected with the prefabricated bridge deck; the connecting rod is provided with mounting grooves, two groups of mounting grooves are symmetrically arranged relative to the axis of the connecting rod, and a plurality of mounting grooves are uniformly arranged in each group along the axis of the connecting rod; one end of the stop block is arranged in the mounting groove in a sliding mode, and the other end of the stop block and the upper surface of the lifting appliance form a baffle; elastic component one end and the tank bottom fixed connection of mounting groove, the other end and dog fixed connection to the elastic component is used for making the dog keep away from mounting groove tank bottom one end roll-off mounting groove.

Through adopting above-mentioned technical scheme, then when prefabricated decking passes through the connecting piece and installs on the hoist, the dog of different positions on the accessible connecting rod for the connecting rod is in the length between hoist and the prefabricated decking and changes, compares in the threaded connection's between connecting rod and the hoist mode, and this kind of design, the dog and the hoist of same position form on the different connecting rods of accessible separate the fender, thereby can reach more conveniently and install the purpose at the hoist with the horizontality with prefabricated decking.

Preferably, the lower surface of the stop block is provided with a latch, and the tooth width direction of the latch is perpendicular to the sliding direction of the stop block; and the upper surface of the lifting appliance is provided with an engaging groove engaged with the latch.

Through adopting above-mentioned technical scheme, because of the cooperation of latch and meshing groove down, then when the dog received the external force towards mounting groove tank bottom orientation, the dog was difficult for sliding towards the orientation of mounting groove tank bottom to make the fender state that separates between dog and the hoist upper surface be difficult for contacting, then when receiving external environment influence, the stability of being connected between connecting piece and the hoist is difficult for being weakened.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the mounting seat, the rotating shaft, the limiting piece and the driving assembly, the prefabricated bridge deck is not easy to displace in the horizontal direction in the rotating process, so that the prefabricated bridge deck is not easy to collide with workers or machinery on a construction site, and further is not easy to cause safety accidents;

2. by means of the mode that the driven gear comprises the connecting sleeve and the gear ring, after the teeth of the driven gear are abraded, the gear ring is only required to be detached and replaced, and therefore the cost of daily maintenance and installation of the device can be saved;

3. through the setting of hoist and extensible member, then the accessible changes the length of extensible member, makes the degree of inclination between hoist length direction both ends change to the degree of inclination of alright change decking cross slope compares in the artifical mode of dragging, and this kind of design can promote the installation effectiveness of decking on the one hand, and on the other hand can promote the installation accuracy of cross slope, helps promoting construction quality.

Drawings

Fig. 1 is a schematic view of an installation device of a prefabricated bridge structure in embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram illustrating how the rotating shaft is rotatably connected to the mounting base in embodiment 1 of the present application.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a schematic structural view of a connector in embodiment 2 of the present application.

Description of reference numerals: 1. a mounting seat; 11. perforating; 2. a rotating shaft; 21. a turning part; 22. a hinge portion; 3. a limiting member; 31. a bearing block; 32. a thrust bearing; 33. connecting blocks; 331. a mating groove; 4. a drive assembly; 41. a drive motor; 42. a driving gear; 43. a driven gear; 431. connecting sleeves; 4311. an extension portion; 432. a gear ring; 5. a spreader; 51. an engagement groove; 6. a connecting member; 61. a connecting rod; 611. mounting grooves; 62. a stopper; 621. clamping teeth; 63. an elastic member; 7. a telescoping member; 71. a connecting portion; 72. a hydraulic cylinder; 8. installing a sleeve; 81. a support portion; 82. an annular projection; 9. angular contact ball bearings; 10. and a bearing spacer bush.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses prefabricated structure installation device of assembled bridge.

Embodiment 1, referring to fig. 1, the prefabricated structure installation device for an assembled bridge includes an installation base 1, a rotating shaft 2 and a limiting part 3, in this embodiment, the upper end of the installation base 1 is connected with a crown block on a bridge girder erection machine through a pulley hoisting device, so that the installation base 1 can slide in the horizontal direction and the vertical direction, when a prefabricated bridge deck is installed on the installation base 1, the prefabricated bridge deck can be lifted up firstly through the installation base 1, and then horizontally conveyed to a specified position of the bridge along the bridge direction, so that the purpose of conveying the prefabricated bridge deck to the position above the beam surface of the specified position of the bridge is achieved.

Referring to fig. 1 and 2, a through hole 11 through which the rotating shaft 2 passes is formed in the mounting base 1, the upper end of the rotating shaft 2 is located in the through hole 11 and is rotatably connected with the mounting base 1 through a limiting piece 3, specifically, the limiting piece 3 includes a bearing block 31, a thrust bearing 32 and a connecting block 33, wherein the bearing block 31 is annular, the bearing block 31 is coaxially fixed on the inner wall of the through hole 11, and the outer ring surface of the bearing block 31 is fixedly connected to the inner wall of the through hole 11, so as to form a structural foundation for installing the limiting piece 3 in the through hole 11; the thrust bearing 32 is fixed to the upper surface of the bearing block 31 by a mounting sleeve 8 to provide a structural basis for enabling relative rotation between the shaft 2 and the mounting block 1.

Referring to fig. 2 and 3, the outer ring of the mounting sleeve 8 abuts against the inner ring of the bearing block 31, and the outer ring of the mounting sleeve 8 is integrally fixed with a support 81, the support 81 extends in the direction away from the axis of the mounting sleeve 8, and the lower surface of the support 81 abuts against the upper surface of the bearing block 31, so as to fix the mounting sleeve 8 on the bearing block 31, and in addition, an annular protrusion 82 is integrally formed on the end surface of the upper end of the mounting sleeve 8, the annular protrusion 82 is coaxially arranged with the mounting sleeve 8, and the inner diameter of the annular protrusion 82 is consistent with the inner diameter of the mounting sleeve 8, so that when the thrust bearing 32 is to be installed, the inner ring of the thrust bearing 32 can be sleeved on the side of the annular protrusion 82 away from the axis of the mounting sleeve 8, and the lower washer of the thrust bearing 32 abuts against the upper surface of the support 81, and the edge of the upper end of the annular protrusion 82 is lower than the upper surface of the lower planar washer, thereby achieving the purpose of mounting the thrust bearing 32 on the carrier block 31.

Referring to fig. 2 and 3, the connecting block 33 is disposed on a side surface of the thrust bearing 32 away from the bearing block 31, and specifically, a mating groove 331 is formed on a lower surface of the connecting block 33, wherein the inner side wall of the matching groove 331 is sleeved on the outer ring of the thrust bearing 32, and the groove bottom of the matching groove 331 is abutted with the upper plane gasket of the thrust bearing 32, so that the connecting block 33 can be rotatably connected with the mounting seat 1 through the thrust bearing 32, in this embodiment, the end of the shaft 2 located in the through hole 11 will be located in the mounting sleeve 8 and the inner ring of the thrust bearing 32, and a certain distance is reserved between the rotating shaft and the mounting sleeve 8 and between the rotating shaft and the inner ring of the thrust bearing 32, in addition, the end part of the rotating shaft 2, which is positioned at one end in the through hole 11, is also arranged on the connecting block 33 in a penetrating way, and is fixedly connected with the connecting block 33 in a pin connection mode, so that the purpose of rotationally connecting the rotating shaft 2 with the mounting seat 1 is achieved.

Referring to fig. 2 and 3, in this embodiment, two angular contact ball bearings 9 are further disposed on the inner ring of the mounting sleeve 8, the two angular contact ball bearings 9 are all sleeved on a portion, located on the inner ring of the mounting sleeve 8, of the rotating shaft 2, and the two angular contact ball bearings 9 are parallel to each other and are arranged at intervals, wherein an interference fit relationship is formed between outer ring surfaces of the two angular contact ball bearings 9 and the inner ring of the mounting sleeve 8, and the paired angular contact bearings can bear an axis joint load, so that bearing capacity of a joint of the rotating shaft 2 and the mounting seat 1 is improved, in addition, a bearing spacer 10 is further disposed between the two angular contact ball bearings 9, the inner ring of the bearing spacer 10 is sleeved on the rotating shaft 2, and two ends of the bearing spacer 10 abut against the two angular contact ball bearings 9 respectively, so that play and pre-pressing of the bearings can be adjusted.

Referring to fig. 1 and 2, a driving assembly 4 is further disposed on the mounting base 1, specifically, the driving assembly 4 includes a driving motor 41 and a driving gear 42, the driving motor 41 is fixed on the mounting base 1 by a bolt, and an output shaft of the driving motor 41 is vertically downward; the driving gear 42 is coaxially fixed and sleeved on the output shaft of the driving motor 41 through bolts, in this embodiment, the driving motor 41 and the driving gear 42 are uniformly arranged in two around the axis of the rotating shaft 2, so that the acting force for rotating the rotating shaft 2 can be applied from different positions of the rotating shaft 2, and the rotating fluency of the rotating shaft 2 can be further improved.

Referring to fig. 1 and 2, the driving assembly 4 further includes a driven gear 43, and specifically, the driven gear 43 further includes a connecting sleeve 431 and a gear ring 432, wherein the connecting sleeve 431 is fixedly sleeved on a portion of the rotating shaft 2, which is located away from the connecting block 33, of the two angular contact ball bearings 9, and the connecting sleeve 431 and the rotating shaft 2 are coaxially arranged, and moreover, an annular extending portion 4311 is integrally formed on an outer surface of the connecting sleeve 431, and the extending portion 4311 is coaxially arranged with the connecting sleeve 431, so as to provide a mounting position for mounting other structures on the connecting sleeve 431; the gear ring 432 is fixed on the upper surface of the extending portion 4311 by bolts, and the gear ring 432 is further engaged with the driving gear 42, so that when the driving motor 41 is started, the driving motor 41 can rotate the rotating shaft 2 around its own axis by the transmission fit between the driving gear 42 and the driven gear 43.

Referring to fig. 1 and 2, in this embodiment, when the prefabricated bridge deck is transported to the designated position of the bridge along the bridge direction by the crown block, the length direction of the prefabricated bridge deck is parallel to the bridge along the bridge direction, so that the prefabricated bridge deck is not easy to collide with the main beam of the bridge girder erection machine, when the prefabricated bridge deck reaches the designated position, the prefabricated bridge deck falls down gradually, when the distance between the prefabricated bridge deck and the bridge beam surface is 1m, the driving motor 41 is started to rotate the rotating shaft 2, so that the prefabricated bridge deck rotates, and when the length direction of the prefabricated bridge deck is parallel to the transverse bridge direction of the bridge, the prefabricated bridge deck can be installed at the designated position.

Referring to fig. 1, a lifting appliance 5 is further connected to one end of the rotating shaft 2, which is far away from the mounting base 1, and the rotating shaft 2 further includes a rotating portion 21 and a hinge portion 22, specifically, one end of the rotating portion 21 is located in the through hole 11 and is rotatably connected with the mounting base 1 through the limiting member 3, and the other end of the rotating portion is located outside the through hole 11 and below the mounting base 1; one end of the hinge part 22 is hinged with one end of the turning part 21 positioned outside the through hole 11, the other end is hinged with the hanger 5, and the turning plane where the hinge part 22 is hinged with the turning part 21 and the turning plane where the hinge part 22 is hinged with the hanger 5 are parallel to each other.

Referring to fig. 1, the spreader 5 is used as a connection medium between the prefabricated bridge deck and the rotating shaft 2, so that two ends of the spreader 5 in the length direction are fixedly connected with two ends of the prefabricated bridge deck in the length direction, so as to achieve the purpose of stably fixing the prefabricated bridge deck on the rotating shaft 2, in addition, in this embodiment, a telescopic member 7 is further disposed between the spreader 5 and the hinge portion 22, specifically, the telescopic member 7 includes a connecting portion 71 and a hydraulic cylinder 72, one end of the connecting portion 71 is integrally fixed on the hinge portion 22, and the other end extends in the direction away from the axis of the rotating shaft 2 and also extends in the direction away from the spreader 5, so that the connecting portion 71 is in an inclined state.

Referring to fig. 1, a housing of a hydraulic cylinder 72 is hinged to one end of the connecting portion 71 away from the hinge portion 22, a piston rod of the hydraulic cylinder 72 is hinged to one side surface of the spreader 5 close to the hinge portion 22, when the piston rod of the hydraulic cylinder 72 extends or retracts, the spreader 5 and the hinge portion 22 rotate relatively, so that the inclination between the two ends of the spreader 5 in the length direction changes, after the prefabricated bridge deck rotates to the length direction of the prefabricated bridge deck to be parallel to the transverse bridge direction of the bridge, the inclination between the two ends of the prefabricated bridge deck in the length direction changes through the extensible member 7, and when the inclination of the prefabricated bridge deck reaches the designed gradient of the transverse bridge slope of the bridge, the prefabricated bridge deck can be installed at a designated position, so that the installation work of the prefabricated bridge deck is completed.

Referring to fig. 1, in the present embodiment, the connection portion 71 of the telescopic member 7 is disposed such that when the hydraulic cylinder 72 extends or contracts, the hinge portion 22 and the rotation portion 21 can rotate relatively better, so that the acting force of the hydraulic cylinder 72 on the rotation portion 21 and the hinge portion 22 can be partially offset, and the bending moment formed at one end of the rotation portion 21 away from the hinge portion 22 can be reduced, thereby making the connection structure between the rotating shaft 2 and the mounting base 1 not easily damaged.

Referring to fig. 1, in the embodiment, the hanger 5 is implemented by fixing both ends of the prefabricated bridge deck in the length direction to both ends of the hanger 5 through screws and nuts.

The implementation principle of the mounting device for the prefabricated structure of the assembled bridge provided by the embodiment of the application is as follows: when the prefabricated bridge deck is installed, the prefabricated bridge deck is installed on the lifting appliance 5 through a screw and a nut, and the length direction of the prefabricated bridge deck is parallel to the bridge direction of a bridge; and then lifting the prefabricated bridge deck plate through a pulley lifting device, conveying the prefabricated bridge deck plate to different positions of the bridge along the bridge direction through a crown block, and after the prefabricated bridge deck plate reaches a specified position, falling the prefabricated bridge deck plate to enable the distance between the prefabricated bridge deck plate and the bridge beam surface to be 1m, so that subsequent adjustment is started.

First, the driving motor 41 is started, and then the driving motor 41 is matched with the driven gear 43 through the driving gear 42, so that the axis of the rotating shaft 2 rotates, and thus the prefabricated bridge deck rotates, when the length direction of the prefabricated bridge deck is parallel to the transverse direction of the bridge, the hydraulic cylinder 72 can be started, so that the lifting appliance 5 and the hinge portion 22 rotate relatively, and thus the inclination degree between the two ends of the prefabricated bridge deck in the length direction changes, and when the inclination degree of the prefabricated bridge deck is consistent with the design gradient of the bridge deck transverse breakage, the prefabricated bridge deck can be installed at a specified position, and thus the installation work of one prefabricated bridge deck is completed.

Embodiment 2, referring to fig. 4, the difference from embodiment 1 is that the connecting member 6 includes a connecting rod 61, a stopper 62 and an elastic member 63, one end of the connecting rod 61 is inserted into the spreader 5, and the other end of the connecting rod is fixed to the prefabricated bridge deck by means of screw connection with a nut, wherein the connecting rod 61 is further provided with two sets of mounting grooves 611, the two sets of mounting grooves 611 are symmetrically arranged with respect to the axis of the connecting rod 61, and a plurality of mounting grooves 611 are uniformly arranged in each set along the axis of the connecting rod 61; one end of the stop block 62 is slidably disposed in the mounting groove 611, and the other end of the stop block is located outside the mounting groove 611 and forms a stop with the upper surface of the spreader 5, so that when the end of the connecting rod 61 away from the spreader 5 is subjected to the gravity of the prefabricated bridge deck, the connecting rod 61 is fixed on the spreader 5 through the stop formed by the stop block 62 and the upper surface of the spreader 5.

Referring to fig. 4, in this embodiment, the elastic member 63 is a spring, one end of the elastic member 63 is fixed on the bottom of the mounting groove 611, and the other end of the elastic member 63 is fixed on the end of the stopper 62 located in the mounting groove 611, and when the elastic member 63 is not subjected to an external force, the elastic member 63 can make one end of the stopper 62 away from the elastic member 63 slide out of the mounting groove 611 to maintain the blocking state between the stopper 62 and the upper surface of the spreader 5, so that when a prefabricated bridge deck is to be mounted on the spreader 5, the stoppers 62 at the same position on different connecting rods 61 can form a blocking with the spreader 5, and thus the prefabricated bridge deck can be quickly fixed on the spreader 5 in a horizontal state.

In addition, in this embodiment, the prefabricated bridge deck is a reinforced concrete prefabricated member, so the distance between different prefabricated bridge decks and the lifting device 5 is different, so the stoppers 62 at different positions on the connecting rod 61 can be applied according to actual conditions, and the adaptability of the connecting piece 6 can be improved.

Referring to fig. 4, a latch 621 is further disposed on the lower surface of the stopper 62, the tooth width direction of the latch 621 is perpendicular to the sliding direction of the stopper 62, and the latch 621 is further uniformly disposed along the length direction of the stopper 62, in addition, the engaging groove 51 engaged with the latch 621 is further disposed on the upper surface of the hanger 5, when the stopper 62 is influenced by an external force, the stopper 62 is not easily moved toward the groove bottom direction of the mounting groove 611 due to the cooperation of the latch 621 and the engaging groove 51, so that the connection stability between the connecting member 6 and the hanger 5 can be improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. An assembled bridge prefabricated construction installation device, its characterized in that includes: the crane comprises a mounting seat (1), a rotating shaft (2), a limiting piece (3) and a driving assembly (4), wherein the mounting seat (1) is used for being connected with a crane; one end of the rotating shaft (2) penetrates through the mounting seat (1), the other end of the rotating shaft is used for being connected with a workpiece, and the rotating shaft (2) is rotatably connected with the mounting seat (1) through the limiting piece (3); the limiting piece (3) comprises a connecting block (33), the connecting block (33) is sleeved on one end, away from the workpiece, of the rotating shaft (2), and the lower surface of the connecting block (33) and the mounting seat (1) form a partition; the driving component (4) is connected with the rotating shaft (2) and is used for driving the rotating shaft (2) to rotate around the axis of the rotating shaft.

2. The assembly-type bridge girder prefabricated structure installation device according to claim 1, wherein: the driving assembly (4) comprises a driving motor (41), a driving gear (42) and a driven gear (43), and the driving motor (41) is arranged on the mounting seat (1); the driving gear (42) is fixedly sleeved on an output shaft of the driving motor (41); the driven gear (43) is sleeved on the rotating shaft (2), and the driven gear (43) is meshed with the driving gear (42).

3. The assembly-type bridge girder prefabricated structure installation device according to claim 2, wherein: the driving motors (41) and the driving gears (42) are uniformly arranged in a plurality along the axial direction of the rotating shaft (2), and the driving gears (42) are meshed with the driven gear (43).

4. The assembly-type bridge girder prefabricated structure installation device according to claim 2, wherein: the driven gear (43) comprises a connecting sleeve (431) and a gear ring (432), and the connecting sleeve (431) is sleeved on the rotating shaft (2); the gear ring (432) is sleeved on the connecting sleeve (431), and the gear ring (432) is detachably connected with the connecting sleeve (431).

5. The assembly-type bridge girder prefabricated structure installation device according to claim 1, wherein: the mounting seat (1) is provided with a through hole (11) for the rotating shaft (2) to penetrate through; the limiting piece (3) further comprises a bearing block (31) and a thrust bearing (32), and the bearing block (31) is arranged on the inner wall of the through hole (11); the thrust bearing (32) is arranged on the upper surface of the bearing block (31), and one end of the rotating shaft (2) positioned in the through hole (11) is also arranged on an inner ring of the thrust bearing (32) in a penetrating way; the connecting block (33) is positioned on one side, away from the bearing block (31), of the thrust bearing (32), and the connecting block (33) is fixedly connected with one end, located in the through hole (11), of the rotating shaft (2); the lower surface of the connecting block (33) is provided with a matching groove (331), the inner side wall of the matching groove (331) is sleeved on the outer ring of the thrust bearing (32), and the groove bottom of the matching groove (331) is abutted against the upper surface of the thrust bearing (32).

6. The assembly-type bridge girder prefabricated structure installation device according to claim 1, wherein: a lifting appliance (5) is hinged to one end, far away from the mounting seat (1), of the rotating shaft (2), and a connecting piece (6) for fixedly connecting with the prefabricated bridge deck is further arranged on the lifting appliance (5); the rotating shaft (2) is also provided with an extensible member (7) with the length changeable, one end of the extensible member (7) is hinged with the rotating shaft (2), and the other end of the extensible member is hinged with the lifting appliance (5).

7. The assembly-type bridge girder prefabricated structure installation device according to claim 6, wherein: the telescopic piece (7) comprises a hydraulic cylinder (72), a shell of the hydraulic cylinder (72) is hinged to the lifting appliance (5), and a piston rod of the hydraulic cylinder (72) is hinged to the rotating shaft (2).

8. The assembly-type bridge girder prefabricated structure installation device according to claim 7, wherein: the rotating shaft (2) comprises a rotating part (21) and a hinge part (22), one end of the rotating part (21) penetrates through the mounting base (1) and is rotatably connected with the mounting base (1) through a limiting part (3), and the other end of the rotating part (21) is positioned outside the mounting base (1); one end of the hinge part (22) is hinged with one end of the rotary part (21) which is positioned outside the mounting seat (1), the other end of the hinge part is hinged with the lifting appliance (5), and the rotary planes at the two hinged parts are parallel to each other; the hinged part of the hydraulic cylinder (72) and the rotating shaft (2) is positioned on the hinged part (22), and the hinged parts of the hydraulic cylinder (72) and the rotating part (21) and the hinged part (22) are not on the same rotating shaft (2) line.

9. The assembly-type bridge girder prefabricated structure installation device according to claim 6, wherein: the connecting piece (6) comprises a connecting rod (61), a stop block (62) and an elastic piece (63), one end of the connecting rod (61) penetrates through the lifting appliance (5), and the other end of the connecting rod is fixedly connected with the prefabricated bridge deck; the connecting rod (61) is provided with mounting grooves (611), two groups of mounting grooves (611) are symmetrically arranged relative to the axis of the connecting rod (61), and a plurality of mounting grooves (611) are uniformly arranged in each group along the axis of the connecting rod (61); one end of the stop block (62) is arranged in the mounting groove (611) in a sliding mode, and the other end of the stop block and the upper surface of the lifting appliance (5) form a stop; one end of the elastic piece (63) is fixedly connected with the bottom of the installation groove (611), the other end of the elastic piece is fixedly connected with the stop block (62), and the elastic piece (63) is used for enabling one end, far away from the bottom of the installation groove (611), of the stop block (62) to slide out of the installation groove (611).

10. The assembly-type bridge girder prefabricated structure installation device according to claim 9, wherein: a latch (621) is arranged on the lower surface of the stop block (62), and the tooth width direction of the latch (621) is perpendicular to the sliding direction of the stop block (62); and an engaging groove (51) engaged with the latch (621) is formed on the upper surface of the lifting appliance (5).

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