Bridge multi-span longitudinal integral synchronous intelligent jacking equipment and jacking method

Abstract

The present application relates to the technical field of bridge construction equipment, and particularly relates to a bridge multi-span longitudinal integral synchronous intelligent jacking device and a jacking method, the jacking device comprising a bottom plate, a top beam lifting mechanism, a lifting limiting mechanism, an extrusion piece and a clamping mechanism; after an operator pre-installs a sensor, starts a plurality of groups of the top beam lifting mechanism to synchronously lift a support beam to below a bridge, places a support pile and a support hydraulic jack vertically below the support beam by using the clamping mechanism, starts the support hydraulic jack to pre-jack, adjusts to qualified data by recording sensor data on the bridge, and then the device lifts the support beam to limit, synchronously starts all the support hydraulic jacks to lift the bridge to a specified area, and then processes subsequent support, and finally starts the device to strip the used support structure, effectively solves the safety problems and labor intensity in lifting and installation, has good practicability and economy, and is beneficial to the promotion and use of the device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction equipment, and in particular to a bridge multi-span longitudinal integral synchronous intelligent jacking device and jacking method. BACKGROUND

[0002] Bridge jacking is often used for road expansion and partial section deposition lifting. After a plurality of customized support beams are installed at the bottom of the bridge, a plurality of support piles and support beams are added at the bottom to support and lift the height of the bridge. However, due to the high quality of the support beams and support components, the on-site operation space is relatively compact, and manual transportation and adjustment are often used, which has low operation strength and accuracy. In addition, manual operation of the support beam has differences in use, poor safety, and significant differences in pre-jacking deposition effect, which is not conducive to subsequent adjustment of the number and position of the support piles. SUMMARY

[0003] In order to solve the above-mentioned problems existing in the prior art, the present application aims to provide a bridge multi-span longitudinal integral synchronous intelligent jacking device and jacking method with high safety, low personnel work intensity, and solving the difference in manual jacking.

[0004] The technical solution adopted by the present application is as follows: a bridge multi-span longitudinal integral synchronous intelligent jacking device, comprising:

[0005] A top beam lifting mechanism is symmetrically provided in two groups, and the top beam lifting mechanism comprises a lifting member and a power member for assisting the lifting of the support beam.

[0006] A bottom plate is located below the top beam lifting mechanism to support the equipment structure and support the movement of the equipment.

[0007] A lifting limiting mechanism is located outside the two groups of top beam lifting mechanisms, and the lifting limiting mechanism comprises a support frame fixedly connected to the bottom plate, a limiting member symmetrically arranged at the middle part of the two sides of the support frame, and an extension member for lifting the support beam support.

[0008] The clamping mechanism is located between the two groups of extension pieces, is fixedly connected to the extension pieces, and comprises a transmission piece and a displacement clamping piece. The displacement clamping piece comprises a fixed connection plate, a first connecting shaft is arranged in the middle of the fixed connection plate, a movable connection plate is arranged on the fixed connection plate, a second fixed through hole is arranged in the middle of the movable connection plate, the movable connection plate is rotatably connected to the first connecting shaft on the fixed connection plate through the second fixed through hole, and the movable connection plate has an X-shaped structure. First and second limiting grooves are arranged on the side, away from the lifting limiting mechanism, of the fixed connection plate and the movable connection plate respectively. First and second rotating through holes are arranged at the ends, away from the lifting limiting mechanism, of the fixed connection plate and the movable connection plate respectively. A clamping bent rod is arranged in the first rotating through hole of the fixed connection plate. A clamping bent rod is also arranged in the second rotating through hole of the movable connection plate. The two clamping bent rods are arranged in a symmetrical manner. A rotating connecting column is arranged on the clamping bent rod. The rotating connecting columns on the two clamping bent rods arranged in a symmetrical manner are rotatably connected to the first and second rotating through holes respectively. The clamping bent rod further comprises a limiting clamping rod. The rotating connecting column has a T-shaped structure. The limiting clamping rod can rotate into the first and second limiting grooves along the circumferential rotation of the first rotating through hole.

[0009] The lifting piece comprises a top column frame. The top column frame has a T-shaped structure. Two groups of limiting columns are arranged in the middle of the top column frame in a symmetrical manner. Two groups of lifting guide columns are arranged between the limiting columns. Support beam blocks are arranged on the two groups of lifting guide columns. The support beam blocks are slidably connected to the two groups of lifting guide columns. Support beam clamping grooves are arranged on the opposite surfaces of the support beam blocks on the two groups of opposite top beam lifting mechanisms.

[0010] The limiting piece comprises a plurality of connecting fixed blocks. The connecting fixed blocks have a C-shaped structure. The limiting rollers are arranged on the sides, away from the openings, of the connecting fixed blocks. Top end limiting winding machines are arranged on the sides, away from the bottom plates, of the limiting rollers. Top end limiting steel wires are arranged on the top end limiting winding machines. One end of each top end limiting steel wire is wound around a rotating shaft of the top end limiting winding machine, and the other end of each top end limiting steel wire is connected to a connecting block. The connecting blocks are fixedly connected to the top ends of the support frames, away from the bottom plates. The top end limiting steel wires at the two ends of each limiting roller have a V-shaped structure, so as to increase the linear height between the connecting fixed blocks and the bottom plates.

[0011] The extension piece includes two groups of fixed frame beams, the fixed frame beams are respectively fixed to the open ends of the connecting fixed blocks on one side of the limiting piece, the opposite faces of the two groups of fixed frame beams are provided with bayonet slots, and the extension beam is clamped between the two groups of fixed frame beams. The extension beam is slidingly connected to the bayonet slots provided on the two ends of the fixed frame beams. The extension beam is provided with a wire guide groove at both ends. The side of the extension beam away from the connecting fixed block is provided with a sliding wheel groove. The side of the two groups of fixed frame beams close to the roof beam lifting mechanism is provided with an extrusion piece. The roller provided on the extrusion piece is in contact with one end of the extension beam close to the roof beam lifting mechanism

[0012] In an embodiment, the power member includes a plurality of lifting winding machines, which are uniformly distributed on the bottom plate on both sides of the two groups of lifting guide columns. The power member further includes a plurality of winding wheels, which are rotationally connected to the side of the limiting column away from the bottom plate. The power member further includes a plurality of lifting wheels, which are symmetrically distributed and rotationally connected to the side of the support beam block away from the support beam clamping groove. A steel cable is designed on any lifting winding machine. One end of the steel cable is wound around the rotating shaft of the lifting winding machine. The other end of the steel cable passes through any winding wheel from top to bottom, and then continues to pass through any lifting wheel from bottom to top and is fixedly connected to the middle part of the top column frame away from the bottom plate, forming a lifting pulley structure of the lifting wheel.

[0013] The top end limiting winding machine is started to change the length of the top end limiting steel cable. The limiting roller is displaced by the weight of the fixed frame beam. At the same time, the bottom end limiting winding machine is started to change the length of the bottom end limiting steel cable, so that the limiting roller is balanced at both ends. The vertical displacement of the limiting roller is realized, and the clamping mechanism changes the height.

[0014] In an embodiment, the side of the limiting roller close to the bottom plate is further provided with a bottom end limiting winding machine. The bottom end limiting winding machine is provided with a bottom end limiting steel cable. One end of the bottom end limiting steel cable is wound around the rotating shaft of the bottom end limiting winding machine. The other end of the bottom end limiting steel cable is connected with a connecting block. The connecting block is fixedly connected to the bottom plate. The middle part of the bottom end limiting steel cable is overlapped on the limiting roller. The bottom end limiting steel cables at both ends of the limiting roller form a V-shaped structure, which is used to fix the connecting fixed block to avoid shaking during lifting.

[0015] In an embodiment, the transmission member comprises a plurality of sliding displacement wheels which are connected to the fixed frame beam and slide into the sliding wheel groove, a fixed plate is arranged on the side of the sliding displacement wheel away from the fixed frame beam, the rotating shaft of the sliding displacement wheel is rotatably connected to the fixed plate, a rotating support block is arranged on the side of the fixed plate away from the fixed frame beam, a third fixed through hole is arranged on the end of the movable connecting plate away from the second rotating through hole, the third fixed through hole is rotatably connected to the rotating support block, a first fixed through hole is arranged on the end of the fixed connecting plate away from the first rotating through hole, a second connecting shaft is arranged in the first fixed through hole, and the transmission member further comprises a moving groove block, and an axle connecting groove is arranged in the middle of the moving groove block.

[0016] In an embodiment, the fixed connecting plate is further provided with a first limiting rod, the first limiting rod has an L-shaped structure, one end of the first limiting rod is fixedly connected to the side of the fixed connecting plate away from the lifting limiting mechanism, and the other end of the first limiting groove faces the end of the fixed connecting plate away from the lifting limiting mechanism. The movable connecting plate is further provided with a second limiting rod, the second limiting rod also has an L-shaped structure, one end of the second limiting rod is fixedly connected to the side of the movable connecting plate away from the lifting limiting mechanism, and the other end of the second limiting rod faces the end of the movable connecting plate away from the lifting limiting mechanism. The limiting clamping rod arranged on the clamping bent rod of the fixed connecting plate is located in the gap between the first limiting rod and the first limiting groove, and the limiting clamping rod arranged on the clamping bent rod of the movable connecting plate is located between the second limiting rod and the second limiting groove.

[0017] In an embodiment, the moving groove block is provided with the connecting ring at both ends, the wire wheel groove at both ends of the fixed frame beam is provided with a cable guide wheel, the end of the fixed frame beam close to the roof beam lifting mechanism is provided with a displacement winding machine, the displacement winding machine is wound with a moving steel cable, and both ends of the moving steel cable pass through the two groups of cable guide wheels on the fixed frame beam and are fixedly connected to the connecting rings at both ends of the moving groove block.

[0018] In an embodiment, the lifting method of the bridge multi-span longitudinal whole synchronous intelligent lifting equipment is characterized by comprising the following steps:

[0019] S1. A plurality of devices are placed in the lifting area, the number is determined according to the design requirements, the support beam is buckled at both ends by the roof beam lifting mechanism, and a balance and displacement sensor is installed at the bottom of the bridge;

[0020] S2. Start the roof beam lifting mechanism, and lift the support beam to the bottom of the lifting bridge;

[0021] S3. Start the clamping mechanism, clamp the support pile, the support hydraulic jack is placed below the support beam, and multiple groups are placed in turn until the support bearing capacity meets the support requirement;

[0022] S4. Synchronously start the support hydraulic jack, jack up for several lengths, record the bridge deformation of the sensor and the jacking deposition height, if it does not meet the requirement, change the support position or add equipment;

[0023] S5. After pre-jacking is qualified, start the support hydraulic jack control system to jacking to the design area for reinforcement support;

[0024] S6. After the reinforcement support is solidified, start the equipment, remove the support beam, the support hydraulic jack and the support pile, and complete the jacking.

[0025] The beneficial effects of the present application are: the bridge multi-span longitudinal overall synchronous intelligent jacking equipment and jacking method with high safety, reducing the working strength of personnel, and solving the difference of artificial jacking, the specific implementation mode is as follows:

[0026] The operator first installs sensors at different positions of the bridge bottom, mainly balance and displacement sensors, and the support hydraulic jack used is a hydraulic jack that can be accurately and independently controlled by PLC, which can realize multi-point force balance control through hydraulic frequency conversion speed control, pressure and displacement closed-loop automatic control, and can realize weighing, synchronous jacking and synchronous landing of the jacked bridge. The support pile used is a hollow cylinder with high quality, which is a round pile with side plates at both ends;

[0027] After the preparation is completed, the operator moves multiple support beams between the two corresponding groups of jacking mechanisms, buckles through the support beam clamping groove on the support beam block, starts the lifting winding machine after completion, winds the steel cable, shortens the steel cable length, pulls the support beam block along the lifting guide column guide reverse lifting, and simultaneously, since the lifting wheel on the support beam block and the winding wheel present a movable pulley structure, the lifting tension is effectively reduced. Through the cooperation of multiple lifting winding machines, winding wheels and lifting wheels, the required torque of the lifting winding machine is reduced, and the lifting effect is guaranteed;

[0028] After the support pile is placed between the clamping bent rods, the displacement winding machine is started, the moving steel cable is pulled to pull the moving groove block in the reverse direction of the roof beam lifting mechanism, the moving groove block drives the shaft rod connecting groove to move towards the roof beam lifting mechanism, since the third fixed hole on the movable connecting plate is rotationally connected to the rotating support block, pulling the second connecting shaft drives the first connecting shaft on the fixed connecting plate to rotate along the second fixed hole on the movable connecting plate, so that the fixed connecting plate intersects with the movable connecting plate, and at the same time, the clamping bent rods on both sides are buckled to the middle part of the support pile or the support hydraulic jack, so that the clamping bent rods are fixed. If it is necessary to release the fixation, the moving groove block is pulled in the reverse direction by reversing the displacement winding machine, and at the same time, since the included angle of the fixed connecting plate and the movable connecting plate is enlarged, the clamping bent rods are naturally supported by the support pile and expanded outward, so that the rotating connecting column on the clamping bent rod rotates along the first rotating hole and the second rotating hole to drive the limiting clamping rod to disengage from the first limiting groove and the second limiting groove, the included angle of the clamping bent rod is expanded, and the disengagement problem is effectively solved.

[0029] After clamping is completed, the extrusion member is started to slide the extension beam out of the fixed frame beam, and then the clamped object on the clamping mechanism is transported to the lower side of the support beam through the limiting column, and then the displacement winding machine is continued to be started to continue to pull the connecting ring on the moving groove block, so as to drive the sliding displacement wheel on the fixed plate to slide in the sliding wheel groove, and precise positioning is realized.

[0030] Since a plurality of support piles and the top support hydraulic jack need to be stacked, it is necessary to change the height of the clamping mechanism. The top limiting winding machine is started to change the length of the top limiting steel cable, the limiting roller is displaced by the weight of the fixed frame beam, and the bottom limiting winding machine is started to change the length of the bottom limiting steel cable, so that the limiting roller is balanced at the upper and lower ends, the vertical displacement of the limiting roller is realized, the height of the clamping mechanism is changed, and the stacking is assisted.

[0031] After the stacking is completed, the support hydraulic jack is started for pre-jacking for several hours. After the sensor detects the deformation of the bridge structure and the difference in segmented lifting, the device changes the number or position of the true or false support pile and the support hydraulic jack until the jacking requirements are met, and then the plc system synchronously starts the support hydraulic jack for bridge jacking. After jacking to the qualified height, the fixing treatment is carried out, and then the support hydraulic jack is lowered and the device is started for disassembly;

[0032] The device has the advantages of simple structure, effective solution to the difficulty of installation of the support beam and the difficulty of fixing the position of the support pile in the jacking process, reduction of safety risk, cooperation with the accurately placed and controlled support hydraulic jack to avoid the jacking difference problem caused by manual jacking, good practicability and economy, and facilitation of popularization and use of the device. BRIEF DESCRIPTION OF DRAWINGS

[0033] The application will be further described in detail below in combination with the drawings and specific implementation methods.

[0034] Figure 1 is a perspective structural schematic diagram of the present application;

[0035] Figure 2 is a perspective structural schematic diagram of the present application;

[0036] Figure 3 is a perspective structural schematic diagram of the roof beam lifting mechanism of the present application;

[0037] Figure 4 is a perspective structural schematic diagram of the roof beam lifting mechanism of the present application;

[0038] Figure 5 is a perspective structural schematic diagram of the lifting limiting mechanism of the present application;

[0039] Figure 6 is a perspective structural schematic diagram of the lifting limiting mechanism of the present application;

[0040] Figure 7 is a perspective structural schematic diagram of the lifting limiting mechanism of the present application;

[0041] Figure 8 is a perspective structural schematic diagram of the lifting limiting mechanism of the present application;

[0042] Figure 9 is a perspective structural schematic diagram of the lifting limiting mechanism of the present application;

[0043] Figure 10 is a perspective structural schematic diagram of the clamping mechanism of the present application;

[0044] Figure 11 is a perspective structural schematic diagram of the clamping mechanism of the present application;

[0045] Figure 12 is a perspective structural schematic diagram of the clamping mechanism of the present application;

[0046] Figure 13 is a perspective structural schematic diagram of the clamping mechanism of the present application.

[0047] BRIEF DESCRIPTION OF DRAWINGS: 1, bottom plate; 2, roof beam lifting mechanism; 21, roof column frame; 211, limiting column; 22, lifting winding machine; 221, steel cable; 23, winding wheel; 24, lifting wheel; 25, support beam block; 251, support beam clamping groove; 26, lifting guide column; 3, lifting limiting mechanism; 31, support frame; 32, fixed frame beam; 3201, bayonet slot; 321, extension beam; 32101, sliding wheel groove; 32102, wire guide wheel groove; 33, connecting fixed block; 34, limiting roller; 35, bottom end limiting winding machine; 351, bottom end limiting steel cable; 36, connecting block; 37, top end limiting winding machine; 371, top end limiting steel cable; 4, extrusion piece; 5, clamping mechanism; 51, sliding displacement wheel; 52, fixed plate; 53, rotating support block; 54, fixed connecting plate; 541, first connecting shaft; 542, first fixed through hole; 543, first rotating through hole; 544, first limiting groove; 545, first limiting rod; 55, second connecting shaft; 56, movable connecting plate; 561, second fixed through hole; 562, third fixed through hole; 563, second rotating through hole; 564, second limiting groove; 565, second limiting rod; 57, clamping bent rod; 571, rotating connecting column; 572, limiting clamping rod; 58, moving groove block; 581, shaft rod connecting groove; 582, connecting ring; 59, moving steel cable; 591, cable guide wheel; 592, displacement winding machine; 6, support beam. DETAILED DESCRIPTION

[0048] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application, that is, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0050] The specific embodiments of the present application will be described below in conjunction with Figures 1-13 a bridge multi-span longitudinal integral synchronous intelligent jacking equipment, comprising

[0051] Referring to Figure 1 , 2As shown, the top beam lifting mechanism 2 has two sets of symmetrically arranged components. The top beam lifting mechanism 2 includes lifting components and power components, which are used to assist in lifting the support beam 6. The lifting components include a top column frame 21, which has an "Y" shaped structure. The top column frame 21 has two sets of symmetrically arranged limiting columns 211 in the middle for bearing and supporting. There are two sets of lifting guide columns 26 between the limiting columns 211. Support beam blocks 25 are provided on the two sets of lifting guide columns 26. The support beam blocks 25 are slidably connected to the two sets of lifting guide columns 26. The opposite surfaces of the support beam blocks 25 on the two sets of opposite top beam lifting mechanisms 2 are provided with support beam slots 251.

[0052] The base plate 1 is located below the top beam lifting mechanism 2 and is used to support the equipment structure and support the movement of the equipment;

[0053] Furthermore, mobile devices can be added to the bottom to assist in moving the support structure on the base plate 1 to the usage position, or the position installation requirements can be met by disassembling and reassembling.

[0054] Reference Figure 3 , 4 As shown, the power unit includes six sets of lifting winding machines 22. These winding machines are existing technology, using a motor to drive rollers to wind cables. The various names of winding machines mentioned below refer to similar products, mainly used for limiting winding and dispensing cables, and are not part of the content of this invention, therefore they will not be described further. The lifting winding machines 22 are evenly distributed on both sides of the two sets of lifting guide columns 26 to the base plate 1. The power unit also includes six sets of winding wheels 23, which are rotatably connected to and evenly distributed on the side of the two sets of limiting columns 211 away from the base plate 1. The power components also include six sets of lifting wheels 24, which are symmetrically distributed and rotatably connected to the side of the support beam block 25 away from the support beam slot 251. Each lifting winding machine 22 is equipped with a steel cable 221. One end of the steel cable 221 is wound around the rotating shaft of the lifting winding machine 22, and the other end passes over any winding wheel 23 from top to bottom, and then continues to pass over any lifting wheel 24 from bottom to top and is fixedly connected to the middle of the top column frame 21 away from the bottom plate 1, forming a movable pulley structure for the lifting wheel 24.

[0055] Specifically, for practical operation, the winding and transmission wheel of steel cable 221 are arranged sequentially, and multiple sets of steel cables 221 do not cross each other, which increases aesthetics and reduces maintenance difficulty.

[0056] Reference Figure 5 , 6As shown, the lifting limiting mechanism 3 is located outside the two groups of roof beam lifting mechanisms 2, and the lifting limiting mechanism 3 comprises a support frame 31 fixedly connected to the bottom plate 1, and a limiting piece and an extension piece symmetrically arranged at the middle of the two sides of the support frame 31, which are used to lift the support beam 6 and the support object. The limiting piece comprises four groups of connecting fixed blocks 33, which are distributed on the two sides of the support frame 31 in pairs. The connecting fixed block 33 is in a C-shaped structure, and a limiting roller 34 is arranged on the side away from the opening of the connecting fixed block 33. The limiting roller 34 is provided with a cable groove, and a top limiting winding machine 37 is arranged on the side away from the bottom plate 1 of the limiting roller 34. The top limiting winding machine 37 is provided with a top limiting steel cable 371, one end of which is wound around the rotating shaft of the top limiting winding machine 37, and the other end is connected with a connecting block 36 fixedly connected with the top end of the support frame 31 away from the bottom plate 1. The top limiting steel cable 371 is overlapped at the middle of the limiting roller 34, and the top limiting steel cable 371 at both ends of the limiting roller 34 is in a V-shaped structure, which is used to lift the linear height between the connecting fixed block 33 and the bottom plate 1.

[0057] Referring to Figure 5 , 6 As shown, the side of the limiting roller 34 close to the bottom plate 1 is also provided with a bottom limiting winding machine 35, and the bottom limiting winding machine 35 is provided with a bottom limiting steel cable 351, one end of which is wound around the rotating shaft of the bottom limiting winding machine 35, and the other end is connected with a connecting block 36 fixedly connected with the bottom plate 1. The bottom limiting steel cable 351 is overlapped at the middle of the limiting roller 34, and the bottom limiting steel cable 351 at both ends of the limiting roller 34 is in a V-shaped structure, which is used to fix the connecting fixed block 33 to avoid shaking during lifting.

[0058] As can be seen, one group of limiting rollers 34 is overlapped by the top limiting steel cable 371 and the bottom limiting steel cable 351, and the limiting roller 34 and the top limiting steel cable 371 and the bottom limiting steel cable 351 form two groups of transfer pulleys. After the top limiting steel cable 371 and the bottom limiting steel cable 351 are overlapped, they are in a V-shaped structure, which fixes the position of the limiting roller 34 at a point without changing the length of the cable, and changes the length of the cable to realize the lifting of the limiting roller 34.

[0059] Referring to Figure 7 , 8 As shown, the extension piece comprises two groups of fixed frame beams 32 arranged vertically, and the two groups of fixed frame beams 32 are fixed to the opening ends of the connecting fixed blocks 33 on one side of the limiting piece. The opposite surfaces of the two groups of fixed frame beams 32 are provided with a bayonet slot 3201, and the extension beam 321 is clamped between the two groups of fixed frame beams 32 in a stacking structure. Figure 9As shown, the extension beam 321 is slidingly connected to the bayonet slot 3201 provided on the two end fixed frame beams 32, the extension beam 321 is provided with a wire wheel groove 32102 at both ends, the side of the extension beam 321 away from the connecting fixed block 33 is provided with a sliding wheel groove 32101, and the two groups of fixed frame beams 32 are provided with extrusion pieces 4 on the side close to the roof beam lifting mechanism 2, the rollers provided on the extrusion pieces 4 are attached to one end of the extension beam 321 close to the roof beam lifting mechanism 2;

[0060] Specifically, the extrusion piece 4 is simplified as a friction wheel and a motor that can move the extension beam 321 between the fixed frame beams 32, and the same implementation effect is achieved by the screw rod movement and the manual pushing, and the method is not unique, and the implementation effect is achieved. The main content of the present application, and therefore will not be described here.

[0061] The clamping mechanism 5 is located between the two groups of extension pieces, the clamping mechanism 5 is fixedly connected to the extension piece, and the clamping mechanism 5 comprises a transmission piece and a displacement clamping piece.

[0062] Referring to Figure 10 , 11As shown, the displacement clamp includes a fixed connecting plate 54, a first connecting shaft 541 is arranged in the middle of the fixed connecting plate 54, an active connecting plate 56 is arranged on the fixed connecting plate 54, a second fixed through hole 561 is arranged in the middle of the active connecting plate 56, the active connecting plate 56 is rotatably connected to the first connecting shaft 541 on the fixed connecting plate 54 through the second fixed through hole 561 and is combined, which is an X structure, the fixed connecting plate 54 and the active connecting plate 56 away from the lifting limiting mechanism 3 are respectively provided with a first limiting groove 544 and a second limiting groove 564, the fixed connecting plate 54 is further provided with a first limiting rod 545, the first limiting rod 545 is an L-shaped structure, one end of the first limiting rod 545 is fixedly connected to the side of the fixed connecting plate 54 away from the lifting limiting mechanism 3, and the other end of the first limiting groove 544 faces the end of the fixed connecting plate 54 away from the lifting limiting mechanism 3, the active connecting plate 56 is further provided with a second limiting rod 565, the second limiting rod 565 is also an L-shaped structure, one end of the second limiting rod 565 is fixedly connected to the side of the active connecting plate 56 away from the lifting limiting mechanism 3, and the other end of the second limiting rod 565 faces the end of the active connecting plate 56 away from the lifting limiting mechanism 3, the clamping bent rod 57 of the fixed connecting plate 54 is provided with a limiting clamping rod 572 located in the gap between the first limiting rod 545 and the first limiting groove 544, the clamping bent rod 57 on the active connecting plate 56 is provided with a limiting clamping rod 572 located between the second limiting rod 565 and the second limiting groove 564, the end of the fixed connecting plate 54 and the active connecting plate 56 away from the lifting limiting mechanism 3 is respectively provided with a first rotating through hole 543 and a second rotating through hole 563, the first rotating through hole 543 in the fixed connecting plate 54 is provided with a clamping bent rod 57, the second rotating through hole 563 in the active connecting plate 56 is also provided with a clamping bent rod 57, the two groups of clamping bent rods 57 are symmetrically arranged, the clamping bent rod 57 is provided with a rotating connecting column 571, the rotating connecting columns 571 on the symmetrically arranged clamping bent rods 57 are respectively rotatably connected to the first rotating through hole 543 and the second rotating through hole 563, the clamping bent rod 57 further includes a limiting clamping rod 572, the rotating connecting column 571 is a T-shaped structure, and the limiting clamping rod 572 can rotate into the first limiting groove 544 and the second limiting groove 564 along the circumferential rotation of the first rotating through hole 543.

[0063] In implementation, pulling the moving steel cable 59 pulls the moving groove block 58 of the roof beam lifting mechanism 2 in the opposite direction, and the moving groove block 58 drives the shaft rod connecting groove 581 to move towards the roof beam lifting mechanism 2. Since the third fixed through hole 562 on the movable connecting plate 56 is rotationally connected to the rotating support block 53, pulling the second connecting shaft 55 drives the first connecting shaft 541 on the fixed connecting plate 54 to rotate along the second fixed through hole 561 on the movable connecting plate 56, so that the fixed connecting plate 54 intersects with the movable connecting plate 56, and at the same time drives the clamping bent rods 57 on both sides to be buckled to the middle part of the support pile or the support hydraulic jack, so as to realize fixation. If it is necessary to release the fixation, the moving groove block 58 can be pulled in the opposite direction by reversing the displacement winding machine 592.

[0064] Beneficially, the transmission member includes two groups of sliding displacement wheels 51, which are connected to the fixed frame beam 32 through the sliding wheel groove 32101. The fixed plate 52 is arranged on the side of the sliding displacement wheel 51 away from the fixed frame beam 32. The rotating shaft of the sliding displacement wheel 51 is rotationally connected to the fixed plate 52. The rotating support block 53 is arranged on the side of the fixed plate 52 away from the fixed frame beam 32. The third fixed through hole 562 is arranged on the end of the movable connecting plate 56 away from the second rotating through hole 563. The third fixed through hole 562 is rotationally connected to the rotating support block 53. The first fixed through hole 542 is arranged on the end of the fixed connecting plate 54 away from the first rotating through hole 543. The second connecting shaft 55 is arranged in the first fixed through hole 542. The transmission member further includes a moving groove block 58. The shaft rod connecting groove 581 is arranged in the middle of the moving groove block 58. The shaft rod connecting groove 581 on the shaft rod connecting groove 581 is rotationally connected to the second connecting shaft 55. The connecting ring 582 is arranged at both ends of the moving groove block 58. The cable guide wheel 591 is arranged in the wire guide groove 32102 at both ends of the fixed frame beam 32. The displacement winding machine 592 is arranged at one end of the fixed frame beam 32 close to the roof beam lifting mechanism 2. The moving steel cable 59 is wound on the displacement winding machine 592. Both ends of the moving steel cable 59 pass through the two groups of cable guide wheels 591 on the fixed frame beam 32 and fixedly connect the connecting rings 582 at both ends of the moving groove block 58. The structure shown in the drawing uses an exaggerated display method, which is not the implementation ratio in actual operation. The main purpose is to show the connection structure and implementation method.

[0065] Referring to Figure 12 , 13 , in implementation, starting the displacement winding machine 592 continues to pull the connecting ring 582 on the moving groove block 58, and then drives the sliding displacement wheel 51 on the fixed plate 52 to slide along the sliding wheel groove 32101. The cable guide wheel 591 assists the moving steel cable 59 to move.

[0066] Beneficially, it also includes a lifting method for a bridge multi-span longitudinal overall synchronous intelligent lifting device, which includes the following steps:

[0067] S1. Start multiple sets of equipment placement to the jacking area, the number is referred to the design requirements, the both ends of the support beam 6 are buckled by the top beam lifting mechanism 2, and the balance and displacement sensors are installed at the bottom of the bridge;

[0068] S2. Start the top beam lifting mechanism 2, and lift the support beam 6 to the bottom of the jacked bridge;

[0069] S3. Start the clamping mechanism 5, clamp the support pile, support hydraulic top and place it under the support beam 6, and place multiple sets in sequence until the support bearing capacity meets the support requirements;

[0070] S4. Synchronously start the support hydraulic top, jacking for several times, record the bridge deformation and jacking deposition height of the sensor, if it does not meet the requirements, change the support position or add equipment;

[0071] S5. After pre-jacking qualification, start the support hydraulic top control system to jacking to the design area for reinforcement support;

[0072] S6. After the reinforcement support solidifies, start the equipment, remove the support beam 6, support hydraulic top and support pile, and complete the jacking.

[0073] The working principle of the present application is as follows:

[0074] The operator first installs sensors at different positions of the bridge bottom, mainly balance and displacement sensors, and the support hydraulic top is a hydraulic jack that can be accurately and independently controlled by PLC, which can realize multi-point force balance control through hydraulic frequency conversion speed control, pressure and displacement closed-loop automatic control, and can weigh, synchronously jacking and synchronously landing the jacked bridge. The hydraulic jack, balance and displacement sensor are existing technologies that can realize accurate jacking and data detection, and are not improved in the present application, so they are not described here. The support pile used is a hollow cylinder with high quality, which is a round pile with edge plates at both ends;

[0075] After the preparation is completed, the operator moves multiple sets of support beams 6 between the two corresponding top beam lifting mechanisms 2, buckles through the support beam clamping groove 251 on the support beam block 25, starts the lifting winding machine 22 after completion, winds the steel cable 221, shortens the length of the steel cable 221, and pulls the support beam block 25 along the lifting guide column 26 to guide the reverse lifting. At the same time, since the lifting wheel 24 on the support beam block 25 and the winding wheel 23 present a dynamic pulley structure, the lifting tension is effectively reduced, and through the cooperation of multiple sets of lifting winding machines 22, winding wheels 23 and lifting wheels 24, the required torque of the lifting winding machine 22 is reduced, and the lifting effect is guaranteed;

[0076] After the support pile is placed between the clamping bent rods 57, the displacement winding machine 592 is started to pull the moving steel cable 59 to pull the moving groove block 58 in the reverse direction of the roof beam lifting mechanism 2, and the shaft rod connecting groove 581 is moved to the roof beam lifting mechanism 2. Since the third fixed hole 562 on the movable connecting plate 56 is rotationally connected to the rotating support block 53, pulling the second connecting shaft 55 drives the first connecting shaft 541 on the fixed connecting plate 54 to rotate along the second fixed hole 561 on the movable connecting plate 56, so that the fixed connecting plate 54 intersects with the movable connecting plate 56, and at the same time, the clamping bent rods 57 on both sides are buckled to the middle part of the support pile or the support hydraulic jack, that is, the fixing is realized. If it is necessary to release the fixing, the moving groove block 58 is pulled in the reverse direction by reversing the displacement winding machine 592, and at the same time, since the included angle of the fixed connecting plate 54 and the movable connecting plate 56 is enlarged, the clamping bent rods 57 are naturally supported by the support pile and expanded outward, so that the rotating connecting column 571 on the clamping bent rod 57 is rotated along the first rotating hole 543 and the second rotating hole 563 to drive the limiting clamping rod 572 to disengage from the first limiting groove 544 and the second limiting groove 564, expand the included angle of the clamping bent rod 57, and effectively solve the disengagement problem.

[0077] After the clamping is completed, the extrusion part 4 is started to slide the extension beam 321 out of the fixed frame beam 32, and then the clamped object on the clamping mechanism 5 is transported to the lower part of the support beam 6 through the limiting column 211. Then the displacement winding machine 592 is continued to pull the connecting ring 582 on the moving groove block 58, and then the sliding displacement wheel 51 on the fixed plate 52 is driven to slide along the sliding wheel groove 32101, so as to realize accurate positioning.

[0078] Since a plurality of support piles and top support hydraulic jacks need to be stacked, the height of the clamping mechanism 5 needs to be changed. The top limiting winding machine 37 is started to change the length of the top limiting steel cable 371, and the limiting roller 34 is displaced by the weight of the fixed frame beam 32. At the same time, the bottom limiting winding machine 35 is started to change the length of the bottom limiting steel cable 351, so that the limiting roller 34 is balanced at the upper and lower ends, realizing the vertical displacement of the limiting roller 34, driving the clamping mechanism 5 to change the height, and assisting in stacking.

[0079] After the stacking is completed, the support hydraulic jack is started to be pre-jacked for several hours. After the sensor detects the deformation of the bridge structure and the difference in segmented lifting, the device changes or the number or position of the true or false support pile and the support hydraulic jack until the jacking requirement is met, and then the plc system is started to jacking the bridge. After jacking to the qualified height, the fixing treatment is carried out, and then the support hydraulic jack is lowered and the device is started to be removed.

[0080] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" and the like should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0081] The above is only an example and description of the structure of the application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them with similar ways, as long as they do not deviate from the structure of the application or exceed the scope defined by the claims.

Claims

1. A bridge multi-span longitudinal integral synchronous intelligent jacking equipment, characterized in that: Comprising top beam lifting mechanism (2), the top beam lifting mechanism (2) is provided with two groups of symmetry, the top beam lifting mechanism (2) includes lifting piece and power piece, for auxiliary support beam (6) lifting; Bottom plate (1), located below the top beam lifting mechanism (2), to support equipment structure and support equipment movement; Lifting limiting mechanism (3), the lifting limiting mechanism (3) is located outside the two groups of the top beam lifting mechanism (2), the lifting limiting mechanism (3) includes support frame (31), the support frame (31) is fixedly connected to the bottom plate (1), still includes symmetrically arranged in the middle of support frame (31) limiting piece and extension piece, to lift support beam (6) support; Clamping mechanism (5), the clamping mechanism (5) is located between the two groups of the extension piece, the clamping mechanism (5) is fixedly connected to the extension piece, the clamping mechanism (5) includes transmission part and displacement clamping piece, the displacement clamping piece includes fixed connection plate (54), the fixed connection plate (54) is provided with first connecting shaft (541) in the middle, the fixed connection plate (54) is provided with movable connection plate (56), the movable connection plate (56) is provided with second fixed through hole (561) in the middle, the movable connection plate (56) is rotatably connected to the first connecting shaft (541) on the fixed connection plate (54) through the second fixed through hole (561), which is an X structure, the fixed connection plate (54) and the movable connection plate (56) are provided with first limiting groove (544) and second limiting groove (564) respectively on the side away from the lifting limiting mechanism (3), the fixed connection plate (54) and the movable connection plate (56) are provided with first rotation through hole (543) and second rotation through hole (563) respectively on the end away from the lifting limiting mechanism (3), the first rotation through hole (543) in the fixed connection plate (54) is provided with clamping elbow (57), the second rotation through hole (563) in the movable connection plate (56) is also provided with clamping elbow (57), two groups of clamping elbows (57) are symmetrically arranged, the clamping elbow (57) is provided with rotary connecting column (571), the rotary connecting column (571) on the symmetrically arranged clamping elbow (57) is rotatably connected to the first rotation through hole (543) and the second rotation through hole (563) respectively, the clamping elbow (57) further includes limiting clamping rod (572), the rotary connecting column (571) is in the shape of T, the limiting clamping rod (572) can rotate into the first limiting groove (544) and the second limiting groove (564) along the first rotation through hole (543) rotation circumference The lifting piece includes a top column frame (21) in a sub-letter shape, two groups of limiting columns (211) symmetrically arranged in the middle of the top column frame (21), two groups of lifting guide columns (26) arranged between the limiting columns (211), and support beam blocks (25) arranged on the two groups of lifting guide columns (26); opposite surfaces of the support beam blocks (25) on two groups of opposite top beam lifting mechanisms (2) are provided with support beam clamping grooves (251). The limiting piece includes a plurality of connecting fixed blocks (33) in a C-shaped structure, limiting rollers (34) arranged on sides of the connecting fixed blocks (33) away from openings thereof, top end limiting winding machines (37) arranged on sides of the limiting rollers (34) away from the bottom plate (1), top end limiting steel wires (371) arranged on the top end limiting winding machines (37), one ends of the top end limiting steel wires (371) wound around rotating shafts of the top end limiting winding machines (37), the other ends of the top end limiting steel wires (371) connected with connecting blocks (36) fixedly connected to top ends of the support frames (31) away from the bottom plate (1), the top end limiting steel wires (371) in the middle of the limiting rollers (34) in a V-shaped structure to lift linear heights between the connecting fixed blocks (33) and the bottom plate (1); The top end limiting winding machine (37) is started to change the length of the top end limiting steel wire (371), the limiting roller (34) is displaced by the weight of the fixed frame beam (32), the bottom end limiting winding machine (35) is started to change the length of the bottom end limiting steel wire (351), the limiting roller (34) is balanced at the two ends, the vertical displacement of the limiting roller (34) is realized, and the clamping mechanism (5) is driven to change the height; The extending piece includes two groups of fixed frame beams (32) fixed to the openings of the connecting fixed blocks (33) on the limiting pieces on one side, clamping grooves (3201) arranged on opposite surfaces of the two groups of fixed frame beams (32), an extending beam (321) clamped between the two groups of fixed frame beams (32), the extending beam (321) slidably connected to the clamping grooves (3201) arranged on the two ends of the fixed frame beams (32), wire guide grooves (32102) arranged on the two ends of the extending beam (321), sliding wheel grooves (32101) arranged on a side of the extending beam (321) away from the connecting fixed blocks (33), and extrusion pieces (4) arranged on a side of the two groups of fixed frame beams (32) close to the top beam lifting mechanism (2), the rollers of the extrusion pieces (4) abutting against one end of the extending beam (321) close to the top beam lifting mechanism (2).

2. The bridge multi-span longitudinal integral synchronous intelligent jacking equipment according to claim 1, characterized in that: The power component includes several lifting winding machines (22) which are evenly distributed on both sides of the two groups of lifting guide columns (26) to the bottom plate (1), the power component also includes several winding wheels (23) which are rotatably connected to one side of the limiting column (211) away from the bottom plate (1), the power component also includes several lifting wheels (24) which are symmetrically distributed and rotatably connected to one side of the support beam block (25) away from the support beam clamping groove (251), a steel cable (221) is designed on any lifting winding machine (22), one end of the steel cable (221) is wound around the rotating shaft of the lifting winding machine (22), the other end is wound around any winding wheel (23) from top to bottom, then continues to be wound around any lifting wheel (24) from bottom to top and is fixedly connected to the middle part of one end of the top column frame (21) away from the bottom plate (1), which is a lifting pulley structure for lifting the lifting wheel (24).

3. The bridge multi-span longitudinal integral synchronous intelligent jacking equipment according to claim 1, characterized in that: The limiting roller (34) is also provided with a bottom end limiting winding machine (35) on one side close to the bottom plate (1), the bottom end limiting winding machine (35) is provided with a bottom end limiting steel cable (351), one end of the bottom end limiting steel cable (351) is wound around the rotating shaft of the bottom end limiting winding machine (35), the other end is connected with a connecting block (36), the connecting block (36) is fixedly connected to the bottom plate (1), the middle part of the bottom end limiting steel cable (351) is lapped on the limiting roller (34), the bottom end limiting steel cables (351) at both ends of the limiting roller (34) are in V-shaped structure, which is used for fixing the connecting fixed block (33) to avoid shaking during lifting.

4. The bridge multi-span longitudinal integral synchronous intelligent jacking equipment according to claim 1, characterized in that: The transmission component includes several sliding displacement wheels (51), the sliding displacement wheels (51) are connected to the fixed frame beam (32) through the sliding wheel groove (32101), the fixed plate (52) is arranged on one side of the sliding displacement wheel (51) away from the fixed frame beam (32), the rotating shaft of the sliding displacement wheel (51) is rotatably connected to the fixed plate (52), the rotating support block (53) is arranged on one side of the fixed plate (52) away from the fixed frame beam (32), the third fixed through hole (562) is arranged on one end of the movable connecting plate (56) away from the second rotating through hole (563), the third fixed through hole (562) is rotatably connected to the rotating support block (53), the first fixed through hole (542) is arranged on one end of the fixed connecting plate (54) away from the first rotating through hole (543), the second connecting shaft (55) is arranged in the first fixed through hole (542), the moving groove block (58) is also included, the shaft rod connecting groove (581) is arranged in the middle part of the moving groove block (58), the shaft rod connecting groove (581) on the shaft rod connecting groove (581) is rotatably connected to the second connecting shaft (55).

5. The bridge multi-span longitudinal integral synchronous intelligent jacking equipment according to claim 1, characterized in that: The fixed connecting plate (54) is also provided with a first limiting rod (545), which is in an L-shaped structure, one end of the first limiting rod (545) is fixedly connected to one side of the fixed connecting plate (54) away from the lifting limiting mechanism (3), and the other end of the first limiting groove (544) is away from one end of the fixed connecting plate (54) away from the lifting limiting mechanism (3). The movable connecting plate (56) is also provided with a second limiting rod (565), which is also in an L-shaped structure, one end of the second limiting rod (565) is fixedly connected to one side of the movable connecting plate (56) away from the lifting limiting mechanism (3), and the other end of the second limiting rod (565) is away from one end of the movable connecting plate (56) away from the lifting limiting mechanism (3). The clamping bent rod (57) of the fixed connecting plate (54) is provided with the limiting rod (572) located in the gap between the first limiting rod (545) and the first limiting groove (544). The clamping bent rod (57) on the movable connecting plate (56) is provided with the limiting rod (572) located between the second limiting rod (565) and the second limiting groove (564).

6. The bridge multi-span longitudinal integral synchronous intelligent jacking equipment according to claim 4, characterized in that: The moving groove block (58) is provided with a connecting ring (582) at both ends, the wire guide wheel groove (32102) at both ends of the fixed frame beam (32) is provided with a cable guide wheel (591), and the end of the fixed frame beam (32) close to the top beam lifting mechanism (2) is provided with a displacement winding machine (592). The displacement winding machine (592) is wound with a moving steel cable (59), and both ends of the moving steel cable (59) pass through the two groups of cable guide wheels (591) on the fixed frame beam (32) and fixedly connect the connecting rings (582) at both ends of the moving groove block (58).

7. The lifting method for the bridge multi-span longitudinal integral synchronous lifting equipment according to any one of claims 1 to 6, characterized in that: The method comprises the following steps S1. Start multiple sets of equipment to be placed in the jacking area, the number is determined according to the design requirements, and the support beam (6) is buckled at both ends of the top beam lifting mechanism (2). The balance and displacement sensor is installed at the bottom of the bridge; S2. Start the top beam lifting mechanism (2), and lift the support beam (6) to the bottom of the jacking bridge; S3. Start the clamping mechanism (5), clamp the support pile, support hydraulic top and place it under the support beam (6), and place multiple groups in sequence until the support bearing capacity meets the support requirements; S4. Synchronously start the support hydraulic top, jacking for several lengths, record the bridge deformation and jacking deposition height of the sensor, and if it does not meet the requirements, change the support position or add equipment; S5. After pre-jacking is qualified, start the support hydraulic top control system to jacking to the design area for reinforcement support; S6. After the reinforcement support is solidified, start the equipment, remove the support beam (6), the support hydraulic top and the support pile, and complete the jacking.

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