Multi-purpose bridge deck and crane integrated machine

Abstract

The application provides a multi-purpose bridge deck hoist integrated machine, which comprises a truss mechanism, the surface of the truss mechanism is provided with a second hoisting mechanism for hoisting a steel box girder, and the surface of the truss mechanism is slidably connected with a first hoisting mechanism for hoisting a prefabricated bridge deck and positioning the steel box girder, the side wall of the first hoisting mechanism is provided with a sliding mechanism; the side wall of the steel box girder is provided with a positioning mechanism for assisting the hoisting and positioning of the steel box girder; the inside of the first mounting plate is provided with a limiting mechanism for fixing the positioning plate, the surface of the positioning plate is provided with an adjusting mechanism for fine-tuning the position of the steel box girder, the adjusting mechanism comprises a fixed plate, the two ends of a high-pressure air bag are fixedly connected with the fixed plate and a rubber pad respectively, and the surface of the rubber pad is provided with a plurality of annular pressure sensors. The multi-purpose bridge deck hoist integrated machine has the advantages of facilitating the rapid and accurate splicing of the steel box girders and avoiding the mutual collision of the steel box girders.

Description

Technical Field

[0001] The present invention relates to the technical field of steel-concrete composite beam construction, and in particular to a multi-purpose integrated bridge deck crane. Background Art

[0002] The steel-concrete composite beam cable-stayed bridge is an advanced bridge structure with a series of excellent characteristics, such as high strength, good rigidity, beautiful appearance, and easy construction. The steel-concrete composite beam cable-stayed bridge consists of steel beams and concrete slab shear walls, while the cables serve as support.

[0003] During the construction of a steel-concrete composite girder cable-stayed bridge, the steel box girder and the concrete bridge deck need to be hoisted separately. During the hoisting of the steel box girder, due to its heavy weight and large volume, it is difficult to adjust its position in the air, resulting in collisions at the joints of the steel box girder during the hoisting and splicing process. The steel box girder is heavy, and the extrusion force when the steel box girder collides is too much, resulting in damage to the interface of the steel box girder after the collision, which is not conducive to the installation of the steel box girder.

[0004] Therefore, it is necessary to provide a new multi-purpose bridge crane integrated machine to solve the above problems. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide a multi-purpose bridge crane integrated machine which is convenient for quickly and accurately splicing steel box girders and avoiding collision between steel box girders.

[0006] In order to solve the above technical problems, the multi-purpose bridge deck crane integrated machine provided by the present invention includes: a truss mechanism, the surface of the truss mechanism is installed with a second lifting mechanism for lifting the steel box girder, and the surface of the truss mechanism is slidably connected to the first lifting mechanism for lifting the prefabricated bridge deck and positioning the steel box girder, and the side wall of the first lifting mechanism is installed with a sliding mechanism; the side wall of the steel box girder is installed to drive a positioning mechanism that assists in lifting and positioning the steel box girder, and the positioning mechanism includes a first mounting plate and a second mounting plate, and the surface of the steel box girder is respectively installed with the first mounting plate and the second mounting plate, the surface of the first mounting plate is symmetrically provided with grooves, the interior of the groove is slidably connected to the connecting block, the top of the connecting block is fixedly connected to the positioning plate, the magnet inside the positioning plate adsorbs the support plate on the surface of the first mounting plate, and the support plate is fixed to one end of the first mounting plate; the surface of the second mounting plate is fixedly connected to the clamping plate at the center, and the clamping plate and the second mounting plate are The surfaces of the two mounting plates are symmetrically provided with first positioning grooves with funnel-shaped cross-sections, and the interior of the first positioning grooves is slidably connected to the positioning plates; a hanger is installed on the surface of the positioning plate, and the hanger is connected to the first lifting mechanism; the interior of the first mounting plate is used for a limiting mechanism to fix the positioning plate, and the surface of the positioning plate is used for an adjustment mechanism to fine-tune the position of the steel box girder, and the adjustment mechanism includes a fixing plate, the side wall of the positioning plate is fixedly connected to the fixing plate at the center, and the two ends of the high-pressure airbag are respectively fixedly connected to the fixing plate and the rubber pad, and a plurality of funnel-shaped rubber sleeves are installed inside the high-pressure airbag; a plurality of annular pressure sensors are installed on the surface of the rubber pad, and the pressure sensors contact the side walls of the second mounting plate and the card plate, and the side walls of the card plate are provided with a second positioning groove with a large semicircular cross-section, and the interior of the second positioning groove is slidably connected to the rubber pad, the high-pressure airbag and the fixing plate.

[0007] Preferably, the truss mechanism includes a track, a plurality of the tracks are symmetrically mounted on the surface of the steel box beam fixed to the side wall of the tower column, the surface of the track is slidably connected to the legs, and a plurality of the legs are mounted on the bottom end of the truss.

[0008] Preferably, the first lifting mechanism includes a gantry truck, the surface of the truss is symmetrically slidably connected to the gantry truck, the gantry truck is connected to the electric hoist through the sliding mechanism, a hook is installed at the bottom end of the electric hoist, and the hook is connected to the hanger.

[0009] Preferably, the second lifting mechanism includes a winch and an adjustment platform, a plurality of winches for driving the movement of the slings are installed in the center of the side wall of the truss, and a plurality of adjustment platforms for adjusting the position and direction of the slings are installed at both ends of the truss; the bottom end of the sling is slidably connected to a pulley, and the bottom end of the pulley is rotatably connected to a sling for lifting the steel box girder.

[0010] Preferably, the adjustment platform includes a first base and a guide rail, the guide rail for sliding the first base is symmetrically installed on the surface of the truss, the surfaces of the guide rail and the first base are provided with a slide groove, the interior of the slide groove is slidably connected to a plurality of roller groups, the top ends of the plurality of roller groups are respectively connected to the first base or the second base, and the second base is slidably connected to the first base; the surface of the second base is symmetrically installed with a guide wheel, and the guide wheel is slidably connected to the sling.

[0011] Preferably, hydraulic rods are installed between the track and the support legs, between the pulley and the sling, between the first base and the truss, and between the first base and the second base.

[0012] Preferably, the sliding mechanism includes a servo motor and a slide rail, the side walls of the truss and the truss car are both installed with slide rails, the internal rolling connection rollers of the slide rails, the side walls of the truss car and the support frame are both installed with multiple rollers, and the side walls of the truss car and the support frame are both installed with the servo motor that drives the rollers to rotate.

[0013] Preferably, a limiting plate for limiting the adjusting mechanism is symmetrically installed on the side wall of the second mounting plate; a plurality of protrusions are symmetrically installed on the surface of the positioning plate; the side wall of the clamping plate is threadedly connected to a plurality of screws, and the screws abut against the protrusions.

[0014] Preferably, the limiting mechanism includes a first card block and a second card block, the side wall of the connecting block is fixedly connected to one end of which the first card block is tilted, a connecting groove is provided inside the first mounting plate, the inside of the connecting groove is slidably connected to the second card block with a trapezoidal bottom end, the first card block is slidably connected and engaged with the second card block; a pull rod is installed on the surface of the second card block, and the pull rod is slidably connected to the inside of the first mounting plate; a spring is installed on the side wall of the pull rod, and the two ends of the spring respectively contact the second card block and the first mounting plate.

[0015] Preferably, in the same second mounting plate, the maximum vertical spacing between the two first positioning grooves is equal to the width of the positioning plate; the cross-sectional area of ​​the second positioning groove is equal to the cross-sectional area of ​​the rubber pad, and the cross-sectional area of ​​the fixing plate is smaller than the cross-sectional area of ​​the rubber pad.

[0016] Compared with related technologies, the multi-purpose bridge crane integrated machine provided by the present invention has the following beneficial effects:

[0017] The present invention provides a multi-purpose bridge deck crane integrated machine, when the second lifting mechanism lifts the steel box girder, the first lifting mechanism is connected to the positioning plate through the hanger, and during the lifting of the steel box girder, the adjusting mechanism at one end of the positioning plate extends from one end of the steel box girder. When the lifted steel box girder is too close to each other and is about to collide, the rubber pad extended at one end of the positioning plate contacts the fixed steel box girder, and the support plate fixes the positioning plate to prevent the positioning plate from moving, so that the positioning plate and the adjusting mechanism prevent the two steel box girders from colliding with each other during the lifting process; when the steel box girders are spliced, the two steel box girders are close to each other, so that the rubber pad extended at one end of the steel box girder contacts the second mounting plate and the clamping plate, and at the same time, the first lifting mechanism pulls the positioning plate toward the second mounting plate, so that the pressure sensor on the surface of the rubber pad is squeezed; at the same time, the movement of the second lifting mechanism drives the two steel box girders to approach each other, and the pressure sensor detects the contact between the rubber pad and the second mounting plate and the clamping plate. The extrusion force between them, the high-pressure airbag is installed behind the rubber pad, and when the rubber pad is squeezed, it moves toward the high-pressure airbag, and the high-pressure airbag is squeezed and expanded outward, providing buffer protection for the rubber pad to prevent the rubber pad from being crushed; and when the high-pressure airbag expands outward, it pulls the funnel-shaped rubber sleeve inside outward, and the rubber sleeve increases the pressure resistance of the high-pressure airbag; during the splicing of the steel box girder, the steel box girder and the rubber pad are moved by the second lifting mechanism so that the rubber pad is aligned with the second positioning groove of the side wall of the card plate, and the pressure sensors are installed on the surface of the rubber pad in an annular shape. During the process of aligning the rubber pad with the second positioning groove, when the pressure sensor above the rubber pad is under pressure and the pressure sensor below is not under pressure, the bottom of the rubber pad is aligned with the second positioning groove, and the steel box girder and the rubber pad are controlled to move downward. Similarly, when the pressure sensor on the left side of the rubber pad is under pressure and the pressure sensor on the right side is not under pressure, the steel box girder and the rubber pad should move to the right;By monitoring whether the surface of the pressure sensor is under pressure, the positions of the steel box beam and the rubber pad are adjusted so that the rubber pad is aligned with the second positioning groove. At this time, the first lifting mechanism pulls the positioning plate so that the positioning plate pushes the adjustment mechanism to pass through the second positioning groove. At the same time, the positioning plate enters the interior of the first positioning groove. As the positioning plate moves, the limiting mechanism inside the first mounting plate fixes the positioning plate to prevent the positioning plate from sliding again, so that the first mounting plate and the second mounting plate are connected together through the positioning plate, thereby assisting in positioning the steel box beam. At this time, the steel box beams are aligned with each other, and the second lifting mechanism is opened to drive the steel box beam to move. The box girder moves linearly, driving the positioning plate and the adjustment mechanism to continue linear movement within the second mounting plate. When the distance between the steel box girders is 10 cm, the rubber pad contacts the inner wall of the second mounting plate. The steel box girder continues to move and dock. The pressure sensor on the rubber pad is squeezed. By observing the pressure applied to the pressure sensor, the speed of the steel box girder movement is controlled to prevent the steel box girders from colliding with each other at excessive speed. The adjustment mechanism also buffers the steel box girders, allowing them to slowly approach each other during splicing, preventing excessive squeezing force during the splicing process. This allows for quick, accurate, and safe docking of the steel box girders. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of the multi-purpose bridge crane integrated machine provided by the present invention;

[0019] Figure 2 for Figure 1 A side view of the truss mechanism structure is shown;

[0020] Figure 3 for Figure 1 The schematic diagram of steel box girder splicing positioning is shown;

[0021] Figure 4 for Figure 1 The schematic diagram of steel box girder butt joint is shown;

[0022] Figure 5 for Figure 1 An enlarged schematic diagram of the structure at point A is shown;

[0023] Figure 6 for Figure 2 An enlarged schematic diagram of the structure at point B is shown;

[0024] Figure 7 for Figure 5 The schematic diagram of the internal structure of the first mounting plate and the second mounting plate shown;

[0025] Figure 8 for Figure 5 The exploded schematic diagram of the first mounting plate and the second mounting plate shown;

[0026] Figure 9 for Figure 7 An enlarged schematic diagram of the structure at position C is shown;

[0027] Figure 10 for Figure 7 An enlarged schematic diagram of the structure at D is shown;

[0028] Figure 11 for Figure 1 A top view of the adjustment platform structure shown;

[0029] Figure 12 for Figure 11 A side view of the internal structure of the guide rail is shown;

[0030] Figure 13 for Figure 2 A side view of the sliding mechanism structure shown;

[0031] Figure 14 This is a schematic diagram of the circuit structure provided by the present invention.

[0032] Numbers in the figure: 1. Steel box girder, 11. Tower column, 2. Truss mechanism, 21. Track, 22. Leg, 23. Truss, 3. First lifting mechanism, 31. Gantry car, 32. Hook, 33. Electric hoist, 4. Second lifting mechanism, 41. Winch, 42. Adjustment platform, 421. First base, 422. Second base, 423. Guide wheel, 424. Guide rail, 425. Slide, 426. Roller group, 43. Sling, 44. Spreader, 45. Pulley, 5. Hydraulic rod, 6. Sliding mechanism, 61. Roller, 62. Servo motor, 63. Support frame, 64. Slide rail , 7. Positioning mechanism, 71. First mounting plate, 72. Second mounting plate, 73. Support plate, 74. Positioning plate, 75. Hanger, 76. Card plate, 77. First positioning groove, 78. Second positioning groove, 79. Screw, 710. Limiting plate, 711. Magnet, 712. Block, 713. Groove, 714. Protrusion, 8. Adjusting mechanism, 81. Fixing plate, 82. High-pressure airbag, 83. Rubber pad, 84. Pressure sensor, 85. Rubber sleeve, 9. Limiting mechanism, 91. First block, 92. Second block, 93. Connecting groove, 94. Spring, 95. Pull rod. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 , Figure 1 A schematic structural diagram of a preferred embodiment of the multi-purpose bridge crane integrated machine provided by the present invention; Figure 2 for Figure 1 A side view of the truss mechanism structure is shown; Figure 3 for Figure 1 The schematic diagram of steel box girder splicing positioning is shown; Figure 4 for Figure 1 The schematic diagram of steel box girder butt joint is shown; Figure 5 for Figure 1 An enlarged schematic diagram of the structure at point A is shown; Figure 6 for Figure 2 An enlarged schematic diagram of the structure at point B is shown; Figure 7 for Figure 5 The schematic diagram of the internal structure of the first mounting plate and the second mounting plate shown; Figure 8 for Figure 5 The exploded schematic diagram of the first mounting plate and the second mounting plate shown; Figure 9 for Figure 7 An enlarged schematic diagram of the structure at position C is shown; Figure 10 for Figure 7 An enlarged schematic diagram of the structure at D is shown; Figure 11 for Figure 1 A top view of the adjustment platform structure shown; Figure 12 for Figure 11 A side view of the internal structure of the guide rail is shown; Figure 13 for Figure 2 A side view of the sliding mechanism structure shown; Figure 14 The circuit structure diagram provided by the present invention. The multi-purpose bridge crane integrated machine includes: a truss mechanism 2, the truss mechanism 2 includes a track 21, and a plurality of the tracks 21 are symmetrically installed on the surface of the steel box girder 1 fixed to the side wall of the tower column 11. The surface of the track 21 is slidably connected to the support legs 22, and a plurality of the support legs 22 are installed at the bottom end of the truss 23. First, a piece of the steel box girder 1 is fixed to the side wall of the tower column 11, and the truss mechanism 2 is overlapped on the surface of this piece of steel box girder 1. The other steel box girder 1 is hoisted by the truss mechanism 2, which facilitates the installation of the steel box girder 1 and speeds up the construction efficiency.

[0035] The surface of the truss mechanism 2 is installed with a second lifting mechanism 4 for lifting the steel box girder 1; the second lifting mechanism 4 includes a winch 41 and an adjusting platform 42, and multiple winches 41 for driving the slings 43 to move are installed in the center of the side wall of the truss 23, and multiple adjusting platforms 42 for adjusting the positions and directions of the slings 43 are installed at both ends of the truss 23; the bottom end of the sling 43 is slidably connected to the pulley 45, and the bottom end of the pulley 45 is rotatably connected to the sling 44 for lifting the steel box girder 1; when lifting the steel box girder 1, the sling 44 is connected to the steel box girder 1, and the operation of the winch 41 drives the slings 43 to move upward, thereby lifting the sling 44 and the steel box girder 1 upward.

[0036] The adjusting platform 42 includes a first base 421 and a guide rail 424. The guide rail 424 for sliding the first base 421 is symmetrically installed on the surface of the truss 23. The surfaces of the guide rail 424 and the first base 421 are both provided with a slide groove 425. The interior of the slide groove 425 is slidably connected to a plurality of roller groups 426. The top ends of the plurality of roller groups 426 are respectively connected to the first base 421 or the second base 422. The second base 422 is slidably connected to the first base 421. The surface of the second base 422 is symmetrically installed with a guide wheel 423. The guide wheel 423 is slidably connected to the sling 43. When the winch 41 drives the sling 43 to move, the sling 43 rolls inside the guide wheel 423, and the guide wheel 423 changes the movement direction of the sling 43 Towards and the position of the steel box girder 1; when the steel box girder 1 needs to move left and right, the hydraulic rod 5 operates to drive the first base 421, the second base 422 and the guide wheel 423 to move along the guide rail 424, and the first base 421 drives the roller group 426 to roll inside the slide 425, reducing the resistance of the first base 421 to the movement inside the guide rail 424, so that the adjustment platform 42 drives the sling 44 and the steel box girder 1 to move left and right; when the steel box girder 1 needs to move forward and backward, the hydraulic rod 5 on the side wall of the first base 421 operates, and similarly drives the second base 422 to move along the first base 421, so that the guide wheel 423, the sling 44 and the steel box girder 1 move forward and backward, thereby adjusting the position of the steel box girder 1.

[0037] The surface sliding connection of the truss mechanism 2 is used to lift the prefabricated bridge deck and position the steel box girder 1. The first lifting mechanism 3 includes a gantry 31. The surface of the truss 23 is symmetrically slidably connected to the gantry 31. The gantry 31 is connected to the electric hoist 33 through the sliding mechanism 6. The bottom end of the electric hoist 33 is equipped with a hook 32, and the hook 32 is connected to the hanger 75. When it is necessary to lift the prefabricated bridge deck, the electric hoist 33 operates to extend the steel rope to drive the hook 32 to move downward, and is connected to the prefabricated bridge deck through the hook 32. The operation of the electric hoist 33 drives the steel rope to contract, thereby lifting the hook 32 and the prefabricated bridge deck. The gantry 31 moves along the surface of the truss 23, driving the prefabricated bridge deck to move left and right. The electric hoist 33 moves along the gantry 31, driving the prefabricated bridge deck to move forward and backward, so that the prefabricated bridge deck reaches the designed position. The electric hoist 33 moves to place the prefabricated bridge deck on the surface of the steel box girder 1.

[0038] A sliding mechanism 6 is installed on the side wall of the first lifting mechanism 3; the sliding mechanism 6 includes a servo motor 62 and a slide rail 64, and the side walls of the truss 23 and the truss car 31 are both installed with slide rails 64, and the internal rolling connection rollers 61 of the slide rails 64, and the side walls of the truss car 31 and the support frame 63 are both installed with multiple rollers 61, and the side walls of the truss car 31 and the support frame 63 are both installed with the servo motor 62 that drives the rollers 61 to rotate. When the truss car 31 or the electric hoist 33 moves, the servo motor 62 drives the rollers 61 to rotate, so that the rollers 61 move along the slide rail 64, thereby driving the truss car 31 or the electric hoist 33 to move along the slide rail 64, thereby facilitating the lifting of prefabricated bridge panels.

[0039] The side wall of the steel box girder 1 is installed to drive a positioning mechanism 7 that assists in the lifting and positioning of the steel box girder 1. The positioning mechanism 7 includes a first mounting plate 71 and a second mounting plate 72. The surface of the steel box girder 1 is respectively installed with the first mounting plate 71 and the second mounting plate 72. The surface of the first mounting plate 71 is symmetrically provided with grooves 713. The interior of the groove 713 is slidably connected to the connecting block 712. The top of the connecting block 712 is fixedly connected to the positioning plate 74. The magnet 711 inside the positioning plate 74 adsorbs the support plate 73 on the surface of the first mounting plate 71. The support plate 73 is fixed to one end of the first mounting plate 71; the surface of the second mounting plate 72 is fixedly connected to the clamping plate 76 at the center. The clamping plate 76 and the surface of the second mounting plate 72 A first positioning groove 77 with a funnel-shaped cross-section is symmetrically provided on the surface, and the interior of the first positioning groove 77 is slidably connected to the positioning plate 74; a hanger 75 is installed on the surface of the positioning plate 74, and the hanger 75 is connected to the first lifting mechanism 3; when the second lifting mechanism 4 lifts the steel box girder 1, the adjustment mechanism 8 at one end of the positioning plate 74 extends from one end of the steel box girder 4. When the lifted steel box girder 1 is too close and is about to collide, the rubber pad 83 extending from one end of the positioning plate 74 is brought into contact with the fixed steel box girder 1, and the support plate 73 fixes the positioning plate 74 to prevent the positioning plate 74 from moving, so that the positioning plate 74 and the adjustment mechanism 8 prevent the two steel box girders 1 from colliding with each other and causing damage during the lifting process.

[0040] The limiting mechanism 9 includes a first clamping block 91 and a second clamping block 92. The side wall of the connecting block 712 is fixedly connected to one end and the first clamping block 91 is tilted. A connecting groove 93 is provided inside the first mounting plate 71. The inside of the connecting groove 93 is slidably connected to the second clamping block 92 with a trapezoidal bottom end. The first clamping block 91 is slidably connected and engages with the second clamping block 92; a pull rod 95 is installed on the surface of the second clamping block 92, and the pull rod 95 is slidably connected to the inside of the first mounting plate 71; a spring 94 is sleeved on the side wall of the pull rod 95, and the two ends of the spring 94 respectively contact the second clamping block 92 and the first mounting plate 71. When the positioning plate 74 is brought When the connecting block 712 is moved to slide inside the groove 713, the connecting block 712 drives the first card block 91 to enter the interior of the connecting groove 93, and the first card block 91 with an inclined side wall at one end squeezes the second card block 92 with a trapezoidal side wall, pushing the second card block 92 and the pull rod 95 to move upward to compress the spring 94. After the first card block 91 is separated from the side wall of the second card block 92, the spring 94 extends and pushes the second card block 92 to move downward to engage the first card block 91, thereby fixing the positioning plate 94 inside the first mounting plate 71, so that the first mounting plate 71 and the positioning plate 94 move synchronously.

[0041] The interior of the first mounting plate 71 is used for a limiting mechanism 9 for fixing the positioning plate 74, and the surface of the positioning plate 74 is used for an adjusting mechanism 8 for fine-tuning the position of the steel box girder 1. The adjusting mechanism 8 includes a fixing plate 81, and the center of the side wall of the positioning plate 74 is fixedly connected to the fixing plate 81. The two ends of the high-pressure airbag 82 are respectively fixedly connected to the fixing plate 81 and the rubber pad 83. A plurality of funnel-shaped rubber sleeves 85 are installed inside the high-pressure airbag 82; a plurality of annular pressure sensors 84 are installed on the surface of the rubber pad 83. The pressure sensors 84 contact the side walls of the second mounting plate 72 and the clamping plate 76. The clamping plate 76 is fixed to the fixing plate 81 at both ends. The side wall of the plate 76 is provided with a second positioning groove 78 with a large semicircular cross-section, and the interior of the second positioning groove 78 is slidably connected to the rubber pad 83, the high-pressure airbag 82 and the fixing plate 81; when the steel box girder 1 is to be spliced, the two steel box girders 1 are moved closer to each other, so that the rubber pad 83 extending from one end of the steel box girder 1 contacts the second mounting plate 72 and the clamping plate 76, and at the same time, the first lifting mechanism 3 pulls the positioning plate 74 toward the direction of the second mounting plate 72, so that the pressure sensor 84 on the surface of the rubber pad 83 is squeezed; at the same time, the movement of the second lifting mechanism 4 drives the two steel box girders 1 closer to each other, through the pressure sensor 8 4 detects the squeezing force between the rubber pad 83 and the second mounting plate 72 and the clamping plate 76. The high-pressure airbag 82 is installed behind the rubber pad 83. When the rubber pad 83 is squeezed, it moves toward the high-pressure airbag 82. The high-pressure airbag 82 is squeezed and expands outwards, providing buffer protection for the rubber pad 83 to prevent the rubber pad 83 from being crushed. When the high-pressure airbag 82 expands outwards, it pulls the funnel-shaped rubber sleeve 85 inside outwards. The rubber sleeve 85 increases the compressive strength of the high-pressure airbag 82. During the splicing process of the steel box girder 1, the steel box girder 1 and the rubber pad 83 are moved by the second lifting mechanism 4, so that the rubber The rubber pad 83 is aligned with the second positioning groove 78 of the side wall of the clamping plate 76, and the pressure sensor 84 in a ring shape is installed on the surface of the rubber pad 83. During the process of aligning the rubber pad 83 with the second positioning groove 78, when the pressure sensor 84 above the rubber pad 83 is pressurized and the pressure sensor 84 below is not pressurized, the bottom of the rubber pad 83 is aligned with the second positioning groove 78, and the steel box girder 1 and the rubber pad 83 are controlled to move downward. Similarly, when the pressure sensor 84 on the left side of the rubber pad 83 is pressurized and the pressure sensor 84 on the right side is not pressurized, the steel box girder 1 and the rubber pad 83 should move rightward.By monitoring whether the surface of the pressure sensor 84 is under pressure, the position of the steel box girder 1 and the rubber pad 83 is adjusted so that the rubber pad 83 is aligned with the second positioning slot 78. At this time, the first lifting mechanism 3 pulls the positioning plate 74, causing it to push the adjustment mechanism 8 through the second positioning slot 78. Simultaneously, the positioning plate 74 enters the interior of the first positioning slot 77. As the positioning plate 74 moves, the limiting mechanism 9 within the first mounting plate 71 secures the positioning plate 74 to prevent it from sliding further, connecting the first mounting plate 71 and the second mounting plate 72 together through the positioning plate 74, thereby assisting in positioning the steel box girder 1. At this point, the steel box girder 1 is aligned with each other. Opening the second lifting mechanism 4 drives the steel box girder 1 in linear motion, allowing the steel box girder 1 to be accurately docked in a straight line.

[0042] Hydraulic rods 5 are installed between the track 21 and the support legs 22, between the pulley 45 and the hanger 44, between the first base 421 and the truss 23, and between the first base 421 and the second base 422. In order to facilitate the hydraulic rods 5 to drive the support legs 22 to move along the track 21, the position of the truss mechanism 2 is changed, and the hydraulic rods 5 are extended and retracted to drive the hanger 44 to rotate on the side wall of the pulley 45, thereby changing the angle between the hanger 44 and the steel box girder 1, so as to facilitate the mutual alignment of the steel box girder 1.

[0043] The side walls of the second mounting plate 72 are symmetrically installed with a limiting plate 710 for limiting the adjusting mechanism 8. When the adjusting mechanism 8 enters the side walls of the second mounting plate 72, the limiting plate 710 prevents the adjusting mechanism 8 from detaching from the surface of the second mounting plate 72, thereby facilitating the mutual alignment of the steel box girders 1; a plurality of protrusions 714 are symmetrically installed on the surface of the positioning plate 74; the side walls of the clamping plate 76 are threadedly connected to a plurality of screws 79, and the screws 79 abut against the protrusions 714. When the steel box girder 1 is spliced, the screws 79 are rotated, and the screws 79 rotate and squeeze the protrusions 714 to fix the positioning plate 74 inside the second mounting plate 72, and the first mounting plate 71 and the second mounting plate 72 are fixed, thereby preliminarily fixing the two steel box girders 1 together, thereby facilitating the connection of the two steel box girders 1 together.

[0044] In the same second mounting plate 72, the maximum vertical spacing between the two first positioning grooves 77 is equal to the width of the positioning plate 74, in order to facilitate the linear movement of the positioning plate 74 inside the first positioning groove 77, so that the steel box girder 1 can run linearly for splicing; the cross-sectional area of ​​the second positioning groove 78 is equal to the cross-sectional area of ​​the rubber pad 83, and the cross-sectional area of ​​the fixing plate 81 is smaller than the cross-sectional area of ​​the rubber pad 83, in order to facilitate the fixing plate 81 and the rubber pad 83 to pass through the second positioning groove 78 and enter the interior of the second mounting plate 72.

[0045] The working principle of the multi-purpose bridge crane provided by the present invention is as follows: first, a piece of the steel box girder 1 is installed and fixed on the side wall of the tower column 11, and the track 21, the support legs 22, the truss 23, the first lifting mechanism 3 and the second lifting mechanism 4 are overlapped in sequence on the surface of this piece of the steel box girder 1. The support legs 22 are first fixed to the surface of the track 21 by bolts, and an industrial control device 71 is set on the side wall of the truss mechanism 2. When it is necessary to lift another piece of the steel box girder 1, according to the design requirements, the first mounting plate 71 is fixed on the surface of the steel box girder 1 to be lifted, and the second mounting plate 72 is fixed on the surface of the steel box girder 1 after the installation is completed; an industrial control computer is set on the side wall of the truss mechanism 2, and the industrial control computer is electrically connected to the pressure sensor 84, the electric hoist 33, the winch 41, the hydraulic rod 5, and the electric hoist 33. Connect the device to an external power source, connect the sling 44 to the steel box girder 1, and hook the hook 32 onto the hanger 75. The industrial computer controls the operation of the winch 41 to drive the sling 43 upward, and the industrial computer drives the electric hoist 33 to operate to move the hook 32 upward, thereby lifting the sling 44 and the steel box girder 1 upward. When the lifted steel box girder 1 is too close and about to collide, the rubber pad 83 extending from one end of the positioning plate 74 is brought into contact with the fixed steel box girder 1. The support plate 73 fixes the positioning plate 74 to prevent it from moving, so that the positioning plate 74 and the adjustment mechanism 8 prevent the two steel box girders 1 from colliding with each other during the lifting process and causing damage. When the steel box beams 1 are about to be spliced, the two steel box beams 1 are close to each other, so that the rubber pad 83 extending from one end of the steel box beam 1 contacts the second mounting plate 72 and the clamping plate 76, and at the same time, the industrial computer controls the movement of the gantry vehicle 31 to pull the positioning plate 74 toward the second mounting plate 72, so that the pressure sensor 84 on the surface of the rubber pad 83 is squeezed; at the same time, the movement of the second lifting mechanism 4 drives the two steel box beams 1 to move closer to each other, and the squeezing force between the rubber pad 83 and the second mounting plate 72 and the clamping plate 76 is detected by the pressure sensor 84. The high-pressure airbag 82 is installed behind the rubber pad 83. When the rubber pad 83 is squeezed, it moves toward the high-pressure airbag 82, and the high-pressure airbag 82 is squeezed and expands outward, providing buffer protection for the rubber pad 83 to prevent the rubber pad 83 from being crushed.The surface of the rubber pad 83 is mounted with the pressure sensor 84 in a ring shape. When the rubber pad 83 is aligned with the second positioning groove 78, when the pressure sensor 84 above the rubber pad 83 is pressurized and the pressure sensor 84 below is not pressurized, the pressure sensor 84 transmits information to the industrial computer, which operates the winch 41 to move the steel box girder 1 and the rubber pad 83 downward. Similarly, when the pressure sensor 84 on the left side of the rubber pad 83 is pressurized and the pressure sensor 84 on the right side is not pressurized, the steel box girder 1 and the rubber pad 83 should move rightward.The industrial computer monitors whether the surface of the pressure sensor 84 is under pressure to adjust the position of the steel box girder 1 and the rubber pad 83, and the industrial computer controls the extension and contraction of the hydraulic rod 5 to drive the sling 44 to rotate on the side wall of the pulley 45, thereby changing the angle of the sling 44 and the steel box girder 1 so that the rubber pad 83 is aligned with the second positioning groove 78. At this time, the first lifting mechanism 3 pulls the positioning plate 74 so that the positioning plate 74 pushes the adjusting mechanism 8 to pass through the second positioning groove 78, and at the same time, the positioning plate 74 enters the interior of the first positioning groove 77. As the positioning plate 74 moves, the limiting mechanism 9 inside the first mounting plate 71 fixes the positioning plate 74 to prevent the positioning plate 74 from sliding again, so that the first mounting plate 71 and the second mounting plate 72 are connected together through the positioning plate 74, thereby assisting in positioning the steel box girder 1. At this time, the steel box girder 1 is relatively Aligned with each other, the industrial computer operates to make the second lifting mechanism 4 drive the steel box girder 1 to move linearly, and the steel box girder 1 drives the positioning plate 72 and the adjustment mechanism 8 to continue to move linearly inside the second mounting plate 72. When the distance between the steel box girders 1 is 10 cm, the rubber pad 83 contacts the inner wall of the second mounting plate 72. At this time, the steel box girder 1 continues to move and dock. At this time, the pressure sensor 84 on the surface of the rubber pad 83 is squeezed. The industrial computer monitors the pressure on the pressure sensor 84. The industrial computer adjusts the speed of the movement of the steel box girder 1 by controlling the operation of the second lifting mechanism 4 to avoid the steel box girder 1 colliding with each other at too fast a speed, and the high-pressure airbag 82 caches the steel box girder 1, so that the steel box girder 1 slowly approaches and conflicts with each other during splicing, avoiding excessive extrusion force during the splicing process of the steel box girder 1, thereby quickly, accurately and safely docking the steel box girder 1. When the steel box girder 1 is spliced, the screw rod 79 is rotated, and the screw rod 79 rotates and squeezes the protrusion 714 to fix the positioning plate 74 inside the second mounting plate 72, and the first mounting plate 71 and the second mounting plate 72 are fixed, thereby preliminarily fixing the two steel box girders 1 together. Then, workers use the steel box girder 1 to fix and install it, and use inclined cables to connect the hoisted steel box girder 1 to the tower column 11. After the steel box girder 1 is installed, the first lifting mechanism 3 is used to lay the prefabricated bridge deck on the surface of the steel box girder 1. This device lifts the steel box girder through the first lifting mechanism 3 and the second lifting mechanism 4, and lifts the prefabricated bridge deck through the first lifting mechanism 3, which speeds up construction efficiency, does not require the use of other hangers, and saves costs. After installation is complete, a track 21 is laid on the surface of the steel box girder 1, the bolts fixing the legs 22 are removed, and the hydraulic rods 5 drive the legs 22 and the trusses 23 to move along the track 21, so that the trusses 23 are moved to the surface of the next steel box girder 1 for on-site hoisting operations, further accelerating construction efficiency.

[0046] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-purpose bridge crane integrated machine, characterized in that: include: A truss mechanism (2), wherein a second lifting mechanism (4) for lifting a steel box girder (1) is mounted on the surface of the truss mechanism (2), and a first lifting mechanism (3) for lifting a prefabricated bridge deck and positioning the steel box girder (1) is slidably connected to the surface of the truss mechanism (2), and a sliding mechanism (6) is mounted on the side wall of the first lifting mechanism (3); The side wall of the steel box girder (1) is installed with a positioning mechanism (7) for assisting the lifting and positioning of the steel box girder (1). The positioning mechanism (7) includes a first mounting plate (71) and a second mounting plate (72). The surface of the steel box girder (1) is respectively installed with the first mounting plate (71) and the second mounting plate (72). The surface of the first mounting plate (71) is symmetrically provided with grooves (713). The interior of the grooves (713) is slidably connected to the connecting block (712). The top end of the connecting block (712) is fixedly connected to the positioning plate (74). The magnet inside the positioning plate (74) (711) adsorbs a support plate (73) on the surface of the first mounting plate (71), and the support plate (73) is fixed to one end of the first mounting plate (71); a clamping plate (76) is fixedly connected to the center of the surface of the second mounting plate (72), and the surfaces of the clamping plate (76) and the second mounting plate (72) are symmetrically provided with a first positioning groove (77) with a funnel-shaped cross section, and the interior of the first positioning groove (77) is slidably connected to the positioning plate (74); a hanger (75) is installed on the surface of the positioning plate (74), and the hanger (75) is connected to the first lifting mechanism (3); The interior of the first mounting plate (71) is used for a limiting mechanism (9) for fixing the positioning plate (74), and the surface of the positioning plate (74) is used for an adjusting mechanism (8) for fine-tuning the position of the steel box girder (1). The adjusting mechanism (8) includes a fixing plate (81), the center of the side wall of the positioning plate (74) is fixedly connected to the fixing plate (81), and the two ends of the high-pressure airbag (82) are respectively fixedly connected to the fixing plate (81) and the rubber pad (83). A plurality of funnel-shaped rubber sleeves (85) are installed inside the high-pressure airbag (82); a plurality of annular pressure sensors (84) are installed on the surface of the rubber pad (83), and the pressure sensors (84) abut against the side wall of the second mounting plate (72) and the clamping plate (76). The side wall of the clamping plate (76) is provided with a second positioning groove (78) with a large semicircular cross-section, and the inside of the second positioning groove (78) is slidably connected to the rubber pad (83), the high-pressure airbag (82) and the fixing plate (81).

2. The multi-purpose bridge crane integrated machine according to claim 1, characterized in that: The truss mechanism (2) includes a track (21), a plurality of tracks (21) are symmetrically mounted on the surface of the steel box girder (1) fixed to the side wall of the tower column (11), the surface of the track (21) is slidably connected to the support legs (22), and a plurality of the support legs (22) are mounted on the bottom end of the truss (23).

3. The multi-purpose bridge crane integrated machine according to claim 2, characterized in that: The first lifting mechanism (3) includes a gantry (31), the surface of the truss (23) is symmetrically slidably connected to the gantry (31), the gantry (31) is connected to the electric hoist (33) through the sliding mechanism (6), a hook (32) is installed at the bottom end of the electric hoist (33), and the hook (32) is connected to the hanger (75).

4. The multi-purpose bridge crane integrated machine according to claim 3, characterized in that: The second lifting mechanism (4) includes a winch (41) and an adjustment platform (42); a plurality of winches (41) for driving the slings (43) to move are installed at the center of the side wall of the truss (23); a plurality of adjustment platforms (42) for adjusting the position and direction of the slings (43) are installed at both ends of the truss (23); the bottom end of the sling (43) is slidably connected to a pulley (45), and the bottom end of the pulley (45) is rotatably connected to a sling (44) for lifting the steel box girder (1).

5. The multi-purpose bridge crane integrated machine according to claim 4, characterized in that: The adjustment platform (42) includes a first base (421) and a guide rail (424); the guide rail (424) for sliding the first base (421) is symmetrically mounted on the surface of the truss (23); the surfaces of the guide rail (424) and the first base (421) are both provided with a slide groove (425); the interior of the slide groove (425) is slidably connected to a plurality of roller groups (426); the top ends of the plurality of roller groups (426) are respectively connected to the first base (421) or the second base (422); the second base (422) is slidably connected to the first base (421); the surface of the second base (422) is symmetrically mounted with a guide wheel (423); the guide wheel (423) is slidably connected to the sling (43).

6. The multi-purpose bridge crane integrated machine according to claim 5, characterized in that: Hydraulic rods (5) are installed between the track (21) and the support leg (22), between the pulley (45) and the sling (44), between the first base (421) and the truss (23), and between the first base (421) and the second base (422).

7. The multi-purpose bridge crane integrated machine according to claim 5, characterized in that: The sliding mechanism (6) includes a servo motor (62) and a slide rail (64), the side walls of the truss (23) and the truss car (31) are both installed with the slide rail (64), the inner rolling connection roller (61) of the slide rail (64), the side walls of the truss car (31) and the support frame (63) are both installed with a plurality of the rollers (61), and the side walls of the truss car (31) and the support frame (63) are both installed with the servo motor (62) that drives the rollers (61) to rotate.

8. The multi-purpose bridge crane integrated machine according to claim 1, characterized in that: A limiting plate (710) for limiting the adjusting mechanism (8) is symmetrically mounted on the side wall of the second mounting plate (72); a plurality of protrusions (714) are symmetrically mounted on the surface of the positioning plate (74); and a plurality of screw rods (79) are threadedly connected to the side wall of the clamping plate (76), and the screw rods (79) abut against the protrusions (714).

9. The multi-purpose bridge crane integrated machine according to claim 1, characterized in that: The limiting mechanism (9) includes a first clamping block (91) and a second clamping block (92); a side wall of the connecting block (712) is fixedly connected to one end of which the first clamping block (91) is tilted; a connecting groove (93) is provided inside the first mounting plate (71); the inside of the connecting groove (93) is slidably connected to the second clamping block (92) with a trapezoidal bottom end; the first clamping block (91) is slidably connected and engaged with the second clamping block (92); a pull rod (95) is mounted on the surface of the second clamping block (92), and the pull rod (95) is slidably connected to the inside of the first mounting plate (71); a spring (94) is sleeved on the side wall of the pull rod (95), and the two ends of the spring (94) respectively contact the second clamping block (92) and the first mounting plate (71).

10. The multi-purpose bridge crane integrated machine according to claim 1, characterized in that: In the same second mounting plate (72), the maximum vertical spacing between the two first positioning grooves (77) is equal to the width of the positioning plate (74); the cross-sectional area of ​​the second positioning groove (78) is equal to the cross-sectional area of ​​the rubber pad (83), and the cross-sectional area of ​​the fixing plate (81) is smaller than the cross-sectional area of ​​the rubber pad (83).

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