Improved bridge pushing jack synchronous sliding device and method

Abstract

The invention discloses an improved bridge pushing jack synchronous sliding device and method, and relates to the technical field of building construction auxiliary equipment. The improved bridge jacking jack synchronous sliding device comprises a jacking oil cylinder set, the jacking oil cylinder set comprises a forward-moving oil cylinder, the back face of the forward-moving oil cylinder is fixedly connected with a jacking oil cylinder, the top of the jacking oil cylinder is fixedly connected with a rotating supporting disc, the bottom of the forward-moving oil cylinder is fixedly connected with a transverse-moving compensation mechanism, and the transverse-moving compensation mechanism is fixedly connected with the rotating supporting disc. A transverse compensation sliding rail is slidably connected to the bottom of the transverse movement compensation mechanism, and deviation induction mechanisms are fixedly connected to the left side and the right side of the transverse compensation sliding rail correspondingly. According to the improved bridge jacking jack synchronous sliding device and method, by arranging the rotary supporting disc, the transverse movement compensation mechanism, the transverse compensation sliding rail and the deviation induction mechanism, the situation that the installation precision of a bridge is affected by sliding shoe clamping stagnation is prevented, and the installation precision of a bridge body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction auxiliary equipment, and in particular to an improved synchronous sliding device and method for jacking a bridge with a jack. Background Technique

[0002] The incremental launching method of construction is a construction method in which a prefabrication yard, a steel guide beam, temporary piers, sliding tracks, and a horizontal jack force application device are arranged behind the abutment along the bridge axis direction. Specifically, precast concrete beam segments are fabricated in sections, connected into a whole with longitudinal prestressed tendons, and the beams are pushed (or dragged) out section by section, and then the casting of the next beam segment is continued on the vacated beam fabrication pedestal. Such a method of repeated cyclic construction is the incremental launching method of construction;

[0003] The patent application with the publication number CN106192770A discloses a convenient sliding and jacking system for bridge steel members and its sliding method. The convenient sliding and jacking system for bridge steel members includes hydraulic creepers, hydraulic cylinders, and sliding shoes. The hydraulic creepers and sliding shoes are arranged on the sliding track, the steel members are placed on the sliding shoes, and the hydraulic cylinders are respectively hinged to the hydraulic creepers and the sliding shoes;

[0004] Since the jacking device is usually installed on the track temporarily erected on the pier, the track accuracy cannot be guaranteed. When the wedge-shaped clamp block of the sliding shoe provided by this patent slides along the track, the sliding resistance may suddenly change due to local protrusions or depressions, ultimately resulting in excessive lateral errors in bridge installation and affecting the construction quality and progress. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an improved synchronous sliding device and method for jacking a bridge with a jack to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: An improved synchronous sliding device and method for jacking a bridge with a jack, including a jacking oil cylinder group. The jacking oil cylinder group includes a forward movement oil cylinder, a jacking oil cylinder is fixedly connected to the back surface of the forward movement oil cylinder, a rotating support disk is fixedly connected to the top of the jacking oil cylinder, a transverse movement compensation mechanism is fixedly connected to the bottom of the forward movement oil cylinder, the transverse movement compensation mechanism is slidably connected to a horizontally arranged compensation sliding rail, and deviation sensing mechanisms are fixedly connected to both the left and right sides of the horizontally arranged compensation sliding rail;

[0007] The rotating support disk includes:

[0008] A movable disk seat, the movable disk seat is rotatably connected to the top of the jacking oil cylinder;

[0009] A disk body, the disk body is rotatably connected to the top of the movable disk seat, and the disk body is fixedly connected to the movable disk seat through a torsion spring;

[0010] The brake caliper bracket is fixedly connected to the front surface of the movable disc seat.

[0011] Preferably, the jacking oil cylinder group is connected to an external oil pumping device through an oil pipeline, and the jacking oil cylinder group is electrically connected to an external control device through a wire. The number of the forward movement oil cylinders and the jacking oil cylinders is two each.

[0012] Preferably, a rubber ring is fixedly connected to the top of the disc body. The brake caliper bracket includes an electromagnetic sliding rod which is fixedly connected to the bottom of the movable disc seat. A metal sliding rod is slidably connected inside the electromagnetic sliding rod. The electromagnetic sliding rod is electrically connected to an external control device through a wire. A semi-circular caliper is fixedly connected to the front of the electromagnetic sliding rod through the metal sliding rod. The cross-section of the top of the semi-circular caliper is Y-shaped. The surface roughness of the back of the semi-circular caliper is 1.6 - 10 μm. The semi-circular caliper is located in front of the disc body.

[0013] Preferably, an elastic support rod is fixedly connected to the back of the jacking oil cylinder. The elastic support rod includes a sliding sleeve and a sliding rod. The sliding sleeve is located at the back of the jacking oil cylinder, and the sliding rod is slidably connected inside the sliding sleeve. The sliding rod and the sliding sleeve are fixedly connected by a spring. The top of the sliding rod of the elastic support rod is rotatably connected to the bottom of the movable disc seat.

[0014] Preferably, the lateral movement compensation mechanism includes a magnetic adsorption sliding shoe. A lead screw nut seat is communicated inside the magnetic adsorption sliding shoe. A permanent magnet is embedded at the bottom of the magnetic adsorption sliding shoe. Pulleys are rotatably connected to both the left and right sides of the magnetic adsorption sliding shoe, and the surfaces of the pulleys are covered with rubber. An oil cylinder support plate is rotatably connected to the top of the magnetic adsorption sliding shoe. The oil cylinder support plate includes a magnetic adsorption slide rail. An electromagnet is embedded inside the magnetic adsorption slide rail. The electromagnet is electrically connected to an external control device through a wire. A rotating bottom frame is fixedly connected to the bottom of the magnetic adsorption slide rail. A circular through hole is communicated at the bottom of the rotating bottom frame, and a bearing is embedded on the inner surface of the circular through hole. The rotating bottom frame is rotatably connected to the top of the magnetic adsorption sliding shoe through the bearing.

[0015] Preferably, the number of the horizontal compensation slide rails is two. The horizontal compensation slide rail includes a rail body. A distance sensor is fixedly connected to the left side of the rail body. The top of the rail body is slidably connected to the pulley of the magnetic adsorption sliding shoe. An electromagnet is embedded inside the rail body. A lead screw motor is fixedly connected to the top of the rail body. The lead screw motor is slidably connected to the magnetic adsorption sliding shoe through a lead screw. A C-shaped sliding groove is formed at the bottom of the rail body. A lateral movement adjustment mechanism is fixedly connected to the bottom of the rail body. The lateral movement adjustment mechanism includes a side-by-side oil cylinder group. A contact sliding plate is fixedly connected to the right side of the side-by-side oil cylinder group. The side-by-side oil cylinder group is connected to an external oil pumping device through an oil pipeline. The top of the contact sliding plate is slidably connected inside the C-shaped groove at the bottom of the rail body.

[0016] Preferably, lifting compensation oil cylinders are fixedly connected to both the left and right sides of the rail body. The lifting compensation oil cylinders are communicated with an external oil supply device through oil pipelines. Laser ranging components are fixedly connected to both the left and right sides of the rail body.

[0017] Preferably, the deviation sensing mechanism includes a rotating shaft frame fixedly connected to the front of the rail body. A horizontal rotating frame is rotatably connected inside the rotating shaft frame. An encoder is fixedly connected to the front of the horizontal rotating frame. A horizontal angle encoder is fixedly connected to the top of the horizontal rotating frame. A vertical linkage rotating rod is rotatably connected to the front of the horizontal rotating frame.

[0018] A method for using an improved jack synchronous sliding device for pushing bridges:

[0019] S1. Before use, install the rail body on the top of the prefabrication yard behind the abutment. During this process, the laser ranging component continuously monitors the distance data from the laser ranging component to the side of the prefabrication table. By feeding back the distance data to the control device, the control device can then adjust the stroke of the parallel oil cylinder group, thereby driving the contact slide plate to slide and clamp the side of the prefabrication table, adjusting the relative position of the rail body on the top of the prefabrication table. Subsequently, install the transverse movement compensation mechanism, the jacking oil cylinder group, and the rotating support disc in sequence. After installing multiple sets of equipment, place the precast beam end of the bridge on the abutment.

[0020] S2. Place the precast beam end of the bridge on the top of the disc body. After placing it securely, start the entire device through an external control device. After the device starts, the control device controls the braking bracket to start. After the braking bracket starts, the semi-circular bracket slides backward, and the back surface of the semi-circular bracket contacts the outer surface of the disc body, restricting the rotation of the disc body. All the jacking oil cylinders on-site simultaneously drive the rotating support disc to lift. After the rotating support disc lifts a certain stroke, the top of the disc body contacts the bottom of the precast beam end, and the precast beam end is lifted by the disc body. After lifting the precast beam end to the highest position, the semi-circular bracket resets under the control of the control device. During lifting, the control device controls the electromagnets in the rail body and the magnetic absorption slide rail to be energized. After the electromagnets are energized, the jacking oil cylinders and the magnetic absorption sliders are fixed. When the lifting is completed, the electromagnets are de-energized.

[0021] S3. After lifting the precast beam end, the forward movement oil cylinder pushes the jacking oil cylinder, and the jacking oil cylinder slides along the top of the magnetic absorption slider. During the sliding process, the distance sensor of the rail body continuously monitors the height data from the rail body to the top of the prefabrication table, and adjusts the distance between the two rail bodies in real-time. The control device controls the working state of the lead screw motor, and then adjusts the position of the magnetic absorption slider to adjust the position of the jacking oil cylinder group.

[0022] S4. After the forward movement oil cylinder reaches the limit position, the sliding of the precast beam end under the synchronous cooperation of multiple sets of equipment is completed. The control equipment controls the back surface of the semi-circular support frame to contact the outer surface of the disc body again. The rotating support disc drives the entire precast beam end to move downward under the action of the jacking oil cylinder. When the precast beam end lands on the top of the abutment again, the on-site equipment is disengaged from the precast beam end. After the jacking oil cylinder is fully reset, the forward movement oil cylinder is reset under the action of the control equipment, and then S1 to S3 are continued to cycle until the precast beam end reaches the predetermined position.

[0023] The present invention provides an improved synchronous sliding device and method for jacking a bridge. It has the following beneficial effects:

[0024] 1. For the improved synchronous sliding device for jacking a bridge, by setting a rotating support disc, using the rotating support disc to cooperate with the jacking oil cylinder group, the limited rotation of the rotating support disc offsets the beam body offset caused by the sudden change of the sliding resistance, improving the installation accuracy of the bridge beam body. By cooperating the disc body with the braking support frame, the disc body is fixed during the lifting and lowering stages to prevent the rotation of the disc body during the lifting and lowering process from reducing the installation accuracy.

[0025] 2. For the improved synchronous sliding device for jacking a bridge, by setting a lateral displacement compensation mechanism, using the magnetic adsorption sliding shoe to cooperate with the lead screw and the horizontally placed compensation slide rail, the lateral precise compensation adjustment of the jacking oil cylinder group is realized through lead screw transmission. At the same time, the stable fixation during the lifting stage is realized through the lead screw and the electromagnet component, achieving real-time adjustment and compensation during the bridge jacking process, improving the installation accuracy of the bridge jacking. By cooperating the magnetic adsorption sliding shoe with the oil cylinder support plate, the compensation freedom degree of the oil cylinder in the horizontal direction is improved, preventing the sliding shoe from jamming and affecting the installation accuracy of the bridge.

[0026] 3. For the improved synchronous sliding device for jacking a bridge, by setting a horizontally placed compensation slide rail, using the rail body to cooperate with the lateral displacement compensation mechanism, the overall adjustment and compensation of the jacking oil cylinder group in the horizontal direction are realized, improving the installation accuracy of the device. By cooperating the rail body with the lifting compensation oil cylinder, the adjustment and balance of the front and rear heights of the jacking oil cylinder group are realized, thereby balancing the overall force of the jacking oil cylinder group and assisting in improving the installation accuracy of the bridge.

[0027] 4. For the improved synchronous sliding device for jacking a bridge, by setting a deviation induction mechanism, using the deviation induction mechanism to cooperate with the horizontally placed compensation slide rail, the horizontal offset and height difference between the two slide rails are sensed in real time, reducing the distance error and height error between the two slide rails, assisting in improving the overall accuracy when the device jacks the bridge, and thus improving the overall installation accuracy of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2Schematic diagram of the overall structure of the rotating support disk of the present invention;

[0030] Figure 3 Cross-sectional view of the positional relationship between the disk body and the movable disk seat of the present invention;

[0031] Figure 4 Schematic diagram of the positional relationship between the rotating support disk and the transverse movement compensation mechanism of the present invention;

[0032] Figure 5 Schematic diagram of the positional relationship between the magnetic adsorption sliding shoe and the oil cylinder support plate of the present invention;

[0033] Figure 6 Schematic diagram of the top structure of the transverse compensation slide rail of the present invention;

[0034] Figure 7 Schematic diagram of the bottom structure of the transverse compensation slide rail of the present invention;

[0035] Figure 8 Cross-sectional view of the internal structure of the rail body of the present invention;

[0036] Figure 9 Schematic diagram of the overall structure of the deviation sensing mechanism of the present invention;

[0037] Figure 10 Schematic diagram of the positional relationship between the rotating shaft frame and the horizontal rotating frame of the present invention.

[0038] In the figure: 1. Thrust oil cylinder group; 11. Forward movement oil cylinder; 12. Lifting oil cylinder; 2. Rotating support disk; 21. Movable disk seat; 22. Disk body; 23. Braking clamp; 231. Electromagnetic sliding rod; 232. Semi-circular clamp; 24. Elastic support rod; 3. Transverse movement compensation mechanism; 31. Magnetic adsorption sliding shoe; 32. Oil cylinder support plate; 321. Magnetic adsorption slide rail; 322. Rotating bottom frame; 4. Transverse compensation slide rail; 41. Rail body; 42. Transverse movement adjustment mechanism; 421. Side-by-side oil cylinder group; 422. Contact sliding plate; 43. Lifting compensation oil cylinder; 44. Laser ranging component; 5. Deviation sensing mechanism; 51. Rotating shaft frame; 52. Horizontal rotating frame; 53. Horizontal angle encoder; 54. Vertical linkage rod. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0040] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0041] Embodiment 1

[0042] Please refer to Figure 1-5 , the present invention provides a technical solution: an improved jack synchronous sliding device for pushing bridges, including a pushing oil cylinder group 1. The pushing oil cylinder group 1 includes a forward moving oil cylinder 11, and a jacking oil cylinder 12 is fixedly connected to the back of the forward moving oil cylinder 11. The pushing oil cylinder group 1 is communicated with an external oil pumping device through an oil pipeline, and the pushing oil cylinder group 1 is electrically connected to an external control device through a wire. The number of both the forward moving oil cylinder 11 and the jacking oil cylinder 12 is two. A rotating support disk 2 is fixedly connected to the top of the jacking oil cylinder 12. The rotating support disk 2 includes:

[0043] A movable disk seat 21, the movable disk seat 21 is rotatably connected to the top of the jacking oil cylinder 12, and a vibration sensor is embedded inside the movable disk seat 21;

[0044] A disk body 22, the disk body 22 is rotatably connected to the top of the movable disk seat 21, the disk body 22 is fixedly connected to the movable disk seat 21 through a torsion spring, and a rubber ring is fixedly connected to the top of the disk body 22;

[0045] A braking clamp 23, the braking clamp 23 is fixedly connected to the front of the movable disk seat 21. The braking clamp 23 includes an electromagnetic sliding rod 231, the electromagnetic sliding rod 231 is fixedly connected to the bottom of the movable disk seat 21, a metal sliding rod is slidably connected inside the electromagnetic sliding rod 231, the electromagnetic sliding rod 231 is electrically connected to an external control device through a wire, a semi-circular clamp 232 is fixedly connected to the front of the electromagnetic sliding rod 231 through the metal sliding rod, the cross-section of the top of the semi-circular clamp 232 is Y-shaped, the surface roughness of the back of the semi-circular clamp 232 is 1.6 - 10 μm, and the semi-circular clamp 232 is located in front of the disk body 22;

[0046] An elastic support rod 24, an elastic support rod 24 is fixedly connected to the back of the jacking oil cylinder 12. The elastic support rod 24 includes a sliding sleeve and a sliding rod. The sliding sleeve is located at the back of the jacking oil cylinder 12, the sliding rod is slidably connected inside the sliding sleeve, the sliding rod and the sliding sleeve are fixedly connected through a spring, and the top of the sliding rod of the elastic support rod 24 is rotatably connected to the bottom of the movable disk seat 21;

[0047] A transverse movement compensation mechanism 3 is fixedly connected to the bottom of the forward moving oil cylinder 11, a transverse compensation slide rail 4 is slidably connected to the bottom of the transverse movement compensation mechanism 3, and deviation induction mechanisms 5 are fixedly connected to both the left and right sides of the transverse compensation slide rail 4.

[0048] During use, the jacking oil cylinder 12 rises under the control of the control device. During this process, the braking bracket 23 is electrified under the control of the control device. The semi-circular bracket 232 starts to slide driven by the electromagnetic slide bar 231. The back surface of the semi-circular bracket 232 contacts the outer surface of the disk body 22, thereby restricting the rotation of the disk body 22. After the top of the disk body 22 contacts the bottom of the precast beam end, the disk body 22 jacks up the precast beam end under the synchronous push of the jacking oil cylinders 12 of multiple sets of equipment. When the precast beam end is pushed to the highest position by the disk body 22, the braking bracket 23 is powered off under the control of the control device, and the semi-circular bracket 232 releases the restraint on the disk body 22. The forward movement oil cylinder 11 is started under the control of the control device, and the forward movement oil cylinders 11 of multiple sets of equipment synchronously drive the precast beam end to slide horizontally;

[0049] During the sliding process, the precast beam end may have a tendency to slide horizontally. During this process, the horizontal sliding of the precast beam end drives the disk body 22 to rotate axially. The axial rotation of the disk body 22 will squeeze the torsion spring, and the torsion spring offsets the horizontal sliding of the precast beam end. During this process, the vibration sensor inside the movable disk seat 21 transmits vibration data in real time. When the horizontal displacement of the precast beam end is relatively large, after the control device receives the transmitted vibration data, it powers on the braking bracket 23 again, and the semi-circular bracket 232 restricts the rotation of the disk body 22 again to prevent excessive horizontal displacement of the precast beam end;

[0050] After the forward movement oil cylinder 11 reaches the limit position, the braking bracket 23 is powered on under the action of the control device, and the semi-circular bracket 232 restricts the disk body 22 again. The jacking oil cylinder 12 is reset under the control of the control device. When the jacking oil cylinder 12 is fully reset, the equipment disengages from the contact with the precast beam end, and the forward movement oil cylinder 11 is reset under the control of the control device.

[0051] Embodiment 2

[0052] Please refer to Figure 1-8 , based on Embodiment 1, the present invention provides a technical solution: the transverse movement compensation mechanism 3 includes a magnetic adsorption sliding shoe 31. The inside of the magnetic adsorption sliding shoe 31 is communicated with a lead screw nut seat. A permanent magnet is embedded at the bottom of the magnetic adsorption sliding shoe 31. Pulley is rotatably connected to both the left and right sides of the magnetic adsorption sliding shoe 31, and the surface of the pulley is covered with rubber. An oil cylinder support plate 32 is rotatably connected to the top of the magnetic adsorption sliding shoe 31. The oil cylinder support plate 32 includes a magnetic adsorption slide rail 321. An electromagnet is embedded inside the magnetic adsorption slide rail 321. The electromagnet is electrically connected to an external control device through a wire. A rotating bottom frame 322 is fixedly connected to the bottom of the magnetic adsorption slide rail 321. A circular through hole is communicated with the bottom of the rotating bottom frame 322, and a bearing is embedded on the inner surface of the circular through hole. The rotating bottom frame 322 is rotatably connected to the top of the magnetic adsorption sliding shoe 31 through the bearing;

[0053] There are two horizontally placed compensation slide rails 4. The horizontally placed compensation slide rail 4 includes a rail body 41. A distance sensor is fixedly connected to the left side of the rail body 41. The top of the rail body 41 is slidably connected to the pulley of the magnetic adsorption sliding shoe 31. An electromagnet is embedded inside the rail body 41. A screw motor is fixedly connected to the top of the rail body 41. The screw motor is slidably connected to the magnetic adsorption sliding shoe 31 through a screw. A C-shaped chute is formed at the bottom of the rail body 41. A transverse movement adjustment mechanism 42 is fixedly connected to the bottom of the rail body 41. The transverse movement adjustment mechanism 42 includes a group of side-by-side oil cylinders 421. A contact sliding plate 422 is fixedly connected to the right side of the group of side-by-side oil cylinders 421. The group of side-by-side oil cylinders 421 is communicated with an external oil pumping device through an oil pipeline. The top of the contact sliding plate 422 is slidably connected inside the C-shaped groove at the bottom of the rail body 41. Lifting compensation oil cylinders 43 are fixedly connected to both the left and right sides of the rail body 41. The lifting compensation oil cylinders 43 are communicated with an external oil supply device through an oil pipeline. Laser ranging assemblies 44 are fixedly connected to both the left and right sides of the rail body 41. The laser ranging assemblies 44 are electrically connected to a control device through wires.

[0054] During use, before use, the rail body 41 is installed on the top of the prefabrication yard behind the abutment. During this process, the laser ranging assembly 44 continuously monitors the distance data from the laser ranging assembly 44 to the side of the prefabrication table. By feeding back the distance data to the control device, the control device can then adjust the stroke of the group of side-by-side oil cylinders 421, thereby driving the contact sliding plate 422 to slide and clamp the side of the prefabrication table, and adjusting the relative position of the rail body 41 on the top of the prefabrication table. When lifting, the control device controls the electromagnets inside the rail body 41 and the magnetic adsorption slide rail 321 to be energized. After the electromagnets are energized, the jacking oil cylinder 12 and the magnetic adsorption sliding shoe 31 are fixed. When the lifting is completed, the electromagnets are powered off. During the transverse movement in the first embodiment, the laser ranging assembly 44 continuously monitors the distance from the rail body 41 to the side of the prefabrication yard. The position of the rail body 41 at the top of the prefabrication yard is analyzed through the feedback data of the laser ranging assemblies 44 at both ends. The height from the rail body 41 to the top of the prefabrication yard is fed back through the distance sensor. By comparing the data of the laser ranging assemblies 44 and the lifting compensation oil cylinders 43 on the two groups of rail bodies 41, the position state and the overall attitude of the transverse movement compensation mechanism 3 are judged. Then, the screw motor is controlled to rotate to adjust the position of the magnetic adsorption sliding shoe 31. Further, the overall attitude of the oil cylinder support plate 32 is adjusted through the movement of the magnetic adsorption sliding shoe 31. Furthermore, the position attitudes of the two groups of jacking oil cylinder groups 1 are adjusted. The height of the rail body 41 is adjusted by adjusting the stroke of the two groups of lifting compensation oil cylinders 43, and then the front and rear heights of the jacking oil cylinder group 1 are adjusted.

[0055] Embodiment 3

[0056] Please refer to Figure 1-10, on the basis of the first and second embodiments, the present invention provides a technical solution: the deviation sensing mechanism 5 includes a rotating shaft frame 51, the rotating shaft frame 51 is fixedly connected to the front surface of the rail body 41, a horizontal rotating frame 52 is rotatably connected inside the rotating shaft frame 51, an encoder is fixedly connected to the front surface of the horizontal rotating frame 52, a horizontal angle encoder 53 is fixedly connected to the top of the horizontal rotating frame 52, and a vertical linkage rotating rod 54 is rotatably connected to the front surface of the horizontal rotating frame 52.

[0057] During use, in the adjustment process of the second embodiment, the movement of the rail body 41 drives the horizontal rotating frame 52 and the vertical linkage rotating rod 54 to rotate relative to each other. The rotation of the horizontal rotating frame 52 and the vertical linkage rotating rod 54 drives the horizontal angle encoder 53 and the encoder of the vertical linkage rotating rod 54 to rotate. The horizontal angle encoder 53 and the encoder feedback their position and attitude data to the control device, and the control device continues to execute the adjustment process in the second embodiment according to the feedback data.

[0058] Embodiment Four

[0059] Please refer to Figure 1-10 , on the basis of the first, second and third embodiments, the present invention provides a technical solution: a method for using an improved jack synchronous sliding device for pushing bridges:

[0060] S1. Before use, install the rail body 41 on the top of the prefabrication yard behind the abutment. During this process, the laser ranging component 44 continuously monitors the distance data from the laser ranging component 44 to the side of the prefabrication table. By feeding the distance data back to the control device, the control device adjusts the stroke of the parallel oil cylinder group 421, thereby driving the contact sliding plate 422 to slide and clamp the side of the prefabrication table, adjusting the relative position of the rail body 41 on the top of the prefabrication table. Subsequently, install the transverse movement compensation mechanism 3, the jacking oil cylinder group 1, and the rotating support disk 2 in sequence. After installing multiple sets of equipment, place the precast beam end of the bridge on the abutment;

[0061] S2. Place the precast beam end of the bridge on the top of the disk body 22. After placing it securely, start the entire device through an external control device. After the device starts, the control device controls the braking bracket 23 to start. After the braking bracket 23 starts, the semi-circular bracket 232 slides backward, and the back surface of the semi-circular bracket 232 contacts the outer surface of the disk body 22, restricting the rotation of the disk body 22. All the jacking oil cylinders 12 on site simultaneously drive the rotating support disk 2 to lift. After the rotating support disk 2 lifts a certain stroke, the top of the disk body 22 contacts the bottom of the precast beam end, and the precast beam end is lifted by the disk body 22. After lifting the precast beam end to the highest position, the semi-circular bracket 232 is reset under the control of the control device. During lifting, the control device controls the electromagnets in the rail body 41 and the magnetic absorption slide rail 321 to be energized. After the electromagnets are energized, the jacking oil cylinder 12 and the magnetic absorption sliding shoe 31 are fixed. When the lifting is completed, the electromagnets are de-energized;

[0062] S3. After jacking up the end of the precast beam, the forward moving oil cylinder 11 pushes the jacking oil cylinder 12, and the jacking oil cylinder 12 slides along the top of the magnetic adsorption sliding shoe 31. During the sliding process, the distance sensor of the rail body 41 monitors the height data of the rail body 41 to the top of the precast table in real time, adjusts the distance between the two rail bodies 41 in real time, and the control device controls the working state of the lead screw motor, and then adjusts the position of the jacking oil cylinder group 1 by adjusting the position of the magnetic adsorption sliding shoe 31;

[0063] S4. After the forward moving oil cylinder 11 reaches the limit position, the sliding of the end of the precast beam under the synchronous cooperation of multiple sets of equipment is completed. The control device controls the back surface of the semi-circular clamping frame 232 to contact the outer surface of the disc body 22 again, and the rotating support disc 2 drives the entire end of the precast beam to move down under the drive of the jacking oil cylinder 12. When the end of the precast beam falls on the top of the abutment again, the on-site equipment is separated from the end of the precast beam. After the jacking oil cylinder 12 is completely reset, the forward moving oil cylinder 11 is reset under the action of the control device, and then continue to cycle S1 to S3 until the end of the precast beam reaches the predetermined position.

[0064] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An improved synchronous sliding device for jacking a bridge, comprising a jacking oil cylinder group (1), the jacking oil cylinder group (1) includes a forward moving oil cylinder (11), and a jacking oil cylinder (12) is fixedly connected to the back of the forward moving oil cylinder (11), characterized in that: The top of the jacking oil cylinder (12) is fixedly connected with a rotating support disc (2). The bottom of the forward moving oil cylinder (11) is fixedly connected with a transverse movement compensation mechanism (3). The bottom of the transverse movement compensation mechanism (3) is slidably connected with a transverse compensation slide rail (4). Deviation induction mechanisms (5) are fixedly connected to both the left and right sides of the transverse compensation slide rail (4); The rotating support disc (2) includes: A movable disc base (21) which is rotatably connected to the top of the jacking oil cylinder (12); A disc body (22) which is rotatably connected to the top of the movable disc base (21); A braking clamp (23) which is fixedly connected to the front of the movable disc base (21).

2. An improved jack synchronous sliding device for pushing bridges according to claim 1, characterized in that: The jacking oil cylinder group (1) is communicated with an external oil pumping device through an oil pipeline, and the jacking oil cylinder group (1) is electrically connected with an external control device through a wire.

3. An improved jack synchronous sliding device for pushing bridges according to claim 1, characterized in that: The disc body (22) is fixedly connected to the movable disc base (21) through a torsion spring. A rubber ring is fixedly connected to the top of the disc body (22). The braking clamp (23) includes an electromagnetic slide rod (231) which is fixedly connected to the bottom of the movable disc base (21). A metal slide rod is slidably connected inside the electromagnetic slide rod (231). A semi-circular clamp (232) is fixedly connected to the front of the electromagnetic slide rod (231) through the metal slide rod. The semi-circular clamp (232) is located in front of the disc body (22).

4. An improved jack synchronous sliding device for pushing bridges according to claim 3, characterized in that: An elastic support rod (24) is fixedly connected to the back of the jacking oil cylinder (12). The elastic support rod (24) includes a sliding sleeve and a sliding rod. The sliding sleeve is located at the back of the jacking oil cylinder (12). The sliding rod is slidably connected inside the sliding sleeve. The sliding rod and the sliding sleeve are fixedly connected through a spring. The top of the sliding rod of the elastic support rod (24) is rotatably connected to the bottom of the movable disc base (21).

5. An improved jack synchronous sliding device for pushing bridges according to claim 4, characterized in that: The transverse movement compensation mechanism (3) includes a magnetic attraction sliding shoe (31). A lead screw nut seat is communicated inside the magnetic attraction sliding shoe (31). A permanent magnet is embedded at the bottom of the magnetic attraction sliding shoe (31). Pulleys are rotatably connected to both the left and right sides of the magnetic attraction sliding shoe (31). An oil cylinder support plate (32) is rotatably connected to the top of the magnetic attraction sliding shoe (31). The oil cylinder support plate (32) includes a magnetic attraction slide rail (321). An electromagnet is embedded inside the magnetic attraction slide rail (321). A rotating bottom frame (322) is fixedly connected to the bottom of the magnetic attraction slide rail (321). A circular through hole is communicated at the bottom of the rotating bottom frame (322). A bearing is embedded on the inner surface of the circular through hole. The rotating bottom frame (322) is rotatably connected to the top of the magnetic attraction sliding shoe (31) through the bearing.

6. An improved jack synchronous sliding device for pushing bridges according to claim 5, characterized in that: The horizontally placed compensation slide rail (4) includes a rail body (41). A distance sensor is fixedly connected to the left side of the rail body (41). The top of the rail body (41) is slidably connected to the pulley of the magnetic attraction sliding shoe (31). An electromagnet is embedded inside the rail body (41). A lead screw motor is fixedly connected to the top of the rail body (41). The lead screw motor is slidably connected to the magnetic attraction sliding shoe (31) through a lead screw. A C-shaped chute is formed at the bottom of the rail body (41). A lateral movement adjustment mechanism (42) is fixedly connected to the bottom of the rail body (41). The lateral movement adjustment mechanism (42) includes a side-by-side oil cylinder group (421). The side-by-side oil cylinder group (421) is fixedly connected to the bottom of the rail body (41). A contact sliding plate (422) is fixedly connected to the right side of the side-by-side oil cylinder group (421). The top of the contact sliding plate (422) is slidably connected inside the C-shaped groove at the bottom of the rail body (41).

7. An improved jack synchronous sliding device for pushing bridges according to claim 6, characterized in that: Lifting compensation oil cylinders (43) are fixedly connected to both the left and right sides of the rail body (41). Laser ranging assemblies (44) are fixedly connected to both the left and right sides of the rail body (41).

8. An improved jack synchronous sliding device for pushing bridges according to claim 7, characterized in that: The deviation induction mechanism (5) includes a rotating shaft frame (51). The rotating shaft frame (51) is fixedly connected to the front of the rail body (41). A horizontal rotating frame (52) is rotatably connected inside the rotating shaft frame (51). An encoder is fixedly connected to the front of the horizontal rotating frame (52). A horizontal rotation angle encoder (53) is fixedly connected to the top of the horizontal rotating frame (52). A vertical linkage rotating rod (54) is rotatably connected to the front of the horizontal rotating frame (52).

9. A method for using an improved jack synchronous sliding device for pushing bridges, which is completed by using the improved jack synchronous sliding device for pushing bridges described in claim 8, and is characterized in that: S1. Before use, install the rail body (41) on the top of the prefabrication yard behind the abutment. During this process, the laser ranging assembly (44) monitors the distance data from the laser ranging assembly (44) to the side of the prefabrication table in real time. By feeding back the distance data to the control device, the control device is further enabled to adjust the stroke of the side-by-side oil cylinder group (421), thereby driving the contact sliding plate (422) to slide and clamp the side of the prefabrication table, adjusting the relative position of the rail body (41) on the top of the prefabrication table. Subsequently, install the lateral movement compensation mechanism (3), the jacking oil cylinder group (1), and the rotating support disc (2) in sequence. After installing multiple sets of equipment, place the precast beam end of the bridge on the abutment; S2. Place the precast beam end of the bridge on the top of the disc body (22). After placing it securely, start the entire device through an external control device. After the device starts, the control device controls the braking bracket (23) to start. After the braking bracket (23) starts, the semi-circular bracket (232) slides backward. The back surface of the semi-circular bracket (232) contacts the outer surface of the disc body (22) to restrict the rotation of the disc body (22). All the jacking cylinders (12) on-site drive the rotating support disc (2) to lift simultaneously. After the rotating support disc (2) lifts a certain distance, the top of the disc body (22) contacts the bottom of the precast beam end, and the precast beam end is lifted by the disc body (22). After the precast beam end is lifted to the highest position, the semi-circular bracket (232) is reset under the control of the control device. During the lifting process, the control device controls the electromagnets in the rail body (41) and the magnetic adsorption slide rail (321) to be energized. After the electromagnets are energized, the jacking cylinders (12) and the magnetic adsorption sliders (31) are fixed. When the lifting is completed, the electromagnets are de-energized; S3. After the precast beam end is lifted, the forward movement cylinder (11) pushes the jacking cylinder (12). The jacking cylinder (12) slides along the top of the magnetic adsorption slider (31). During the sliding process, the distance sensor of the rail body (41) monitors the height data from the rail body (41) to the top of the precast table in real time, adjusts the distance between the two rail bodies (41) in real time, and the control device controls the working state of the lead screw motor, and then adjusts the position of the jacking cylinder group (1) by adjusting the position of the magnetic adsorption slider (31); S4. After the forward movement cylinder (11) reaches the limit position, the sliding of the precast beam end under the synchronous cooperation of multiple sets of devices is completed. The control device controls the back surface of the semi-circular bracket (232) to contact the outer surface of the disc body (22) again. The rotating support disc (2) drives the entire precast beam end to move down under the drive of the jacking cylinder (12). When the precast beam end falls on the top of the abutment again, the on-site equipment is separated from the precast beam end. When the jacking cylinder (12) is fully reset, the forward movement cylinder (11) is reset under the action of the control device, and then continue to cycle S1 to S3 until the precast beam end reaches the predetermined position.

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