Improved synchronous sliding device and method for jacking bridge

Abstract

The present invention discloses an improved synchronous sliding device and method for a jacking bridge, and relates to the technical field of auxiliary equipment for construction. The improved synchronous sliding device and method for a jacking bridge comprises a jacking cylinder group, wherein the jacking cylinder group comprises a forward cylinder, the back of the forward cylinder is fixedly connected to a jacking cylinder, the top of the jacking cylinder is fixedly connected to a rotating support plate, the bottom of the forward cylinder is fixedly connected to a lateral compensation mechanism, the bottom of the lateral compensation mechanism is slidably connected to a transverse compensation rail, and the left and right sides of the transverse compensation rail are fixedly connected to a deviation sensing mechanism. The improved synchronous sliding device and method for a jacking bridge prevents the sliding shoe from getting stuck and affecting the installation accuracy of the bridge by providing a rotating support plate, a transverse compensation mechanism, a transverse compensation rail, and a deviation sensing mechanism, thereby improving the installation accuracy of the bridge beam.

Description

Technical Field

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

[0002] The jacking method is a construction method that sets up a prefabrication yard, steel guide beams, temporary piers, slideways, and horizontal jack force-applying devices behind the abutments along the bridge axis to install the bridge. Specifically, concrete beam segments are prefabricated in sections and connected into a whole with longitudinal prestressed tendons. The beams are pushed (or dragged) out one by one, and then the next beam segment is cast on the narrow beam pedestal. This repeated construction cycle is called the jacking method.

[0003] Patent application publication number CN106192770A discloses a convenient sliding jacking system for bridge steel members and a sliding method thereof. The convenient sliding jacking system for bridge steel members includes a hydraulic crawler, a hydraulic cylinder, and a sliding shoe. The hydraulic crawler and sliding shoe are arranged on a sliding track, the steel member is placed on the sliding shoe, and the hydraulic cylinder is articulated to the hydraulic crawler and sliding shoe respectively.

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

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

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an improved synchronous sliding device and method for jacking bridge jacks, including a jacking cylinder group, the jacking cylinder group includes a forward oil cylinder, the back of the forward oil cylinder is fixedly connected to a jacking oil cylinder, the top of the jacking oil cylinder is fixedly connected to a rotating support plate, the bottom of the forward oil cylinder is fixedly connected to a lateral movement compensation mechanism, the bottom of the lateral movement compensation mechanism is slidably connected to a transverse compensation slide rail, and the left and right sides of the transverse compensation slide rail are fixedly connected to a deviation sensing mechanism;

[0007] The rotating support plate comprises:

[0008] A movable disc seat, the movable disc seat being rotatably connected to the top of the jacking cylinder;

[0009] A disc body, the disc body being rotatably connected to the top of the movable disc base, and the disc body being fixedly connected to the movable disc base via a torsion spring;

[0010] A brake bracket is fixedly connected to the front side of the movable disc seat.

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

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

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

[0014] Preferably, the lateral movement compensation mechanism includes a magnetic slipper, the interior of the magnetic slipper is connected to a screw base, a permanent magnet is buried in the bottom of the magnetic slipper, the left and right sides of the magnetic slipper are rotatably connected to pulleys, the surface of the pulley is covered with rubber, the top of the magnetic slipper is rotatably connected to a cylinder support plate, the cylinder support plate includes a magnetic slide rail, an electromagnet is buried in the magnetic slide rail, the electromagnet is electrically connected to an external control device through a wire, the bottom of the magnetic slide rail is fixedly connected to a rotating base frame, the bottom of the rotating base frame is connected to a circular through hole, a bearing is buried in the inner surface of the circular through hole, and the rotating base frame is rotatably connected to the top of the magnetic slipper through the bearing.

[0015] Preferably, the number of the transverse compensating slide rails is two, and the transverse compensating slide rails include a rail body, a distance sensor is fixedly connected to the left side of the rail body, the top of the rail body is slidingly connected to the pulley of the magnetic slide shoe, an electromagnet is buried inside the rail body, a screw motor is fixedly connected to the top of the rail body, the screw motor is slidingly connected to the magnetic slide shoe through the screw, a C-shaped groove is provided at the bottom of the rail body, a transverse adjustment mechanism is fixedly connected to the bottom of the rail body, and the transverse adjustment mechanism includes a side-by-side cylinder group, a contact slide is fixedly connected to the right side of the side-by-side cylinder group, the side-by-side cylinder group is connected to an external oil pumping equipment through an oil pipeline, and the top of the contact slide is slidingly connected to the inside of the C-shaped groove at the bottom of the rail body.

[0016] Preferably, both left and right sides of the rail body are fixedly connected with lifting compensation cylinders, and the lifting compensation cylinders are connected to external oil supply equipment through oil pipes. Both left and right sides of the rail body are fixedly connected with laser ranging components.

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

[0018] An improved method for using the synchronous sliding device of the jack for pushing a bridge:

[0019] S1. Before use, the rail body is installed on the top of the prefabrication yard behind the abutment. During this process, the laser ranging component monitors the distance data from the laser ranging component to the side of the prefabrication platform in real time. By feeding back the distance data to the control device, the control device adjusts the stroke of the parallel cylinder group, thereby driving the contact slide to slide and clamp the side of the prefabrication platform, adjusting the relative position of the rail body on the top of the prefabrication platform. Subsequently, the lateral compensation mechanism, the push cylinder group, and the rotating support plate are installed in sequence. After the installation of multiple sets of equipment is completed, the prefabricated beam end of the bridge is placed on the abutment;

[0020] S2. Place the precast beam end of the bridge on the top of the disc body. After it is placed securely, start the entire equipment through the external control device. After the equipment is started, the control device controls the brake bracket to start. After the brake bracket is started, the semi-annular bracket slides backward, and the back of the semi-annular bracket contacts the outer surface of the disc body to restrict the rotation of the disc body. All the jacking cylinders on site drive the rotating support disc to rise at the same time. After the rotating support disc rises for a certain distance, the top of the disc body contacts the bottom of the precast beam end, and the precast beam end is lifted up by the disc body. After the precast beam end is lifted to the highest position, the semi-annular bracket is reset under the control of the control device. During lifting, the control device controls the electromagnets in the rail body and the magnetic slide rail to be energized. After the electromagnets are energized, the jacking cylinders and the magnetic sliding shoes are fixed. When lifting is completed, the electromagnets are de-energized.

[0021] S3. After the precast beam end is lifted, the forward cylinder pushes the lifting cylinder, which slides along the top of the magnetic sliding shoe. During the sliding process, the distance sensor of the rail body monitors the height data from the rail body to the top of the precast platform in real time, and adjusts the distance between the two rail bodies in real time. The control device controls the working state of the screw motor, and then adjusts the position of the lifting cylinder group by adjusting the position of the magnetic sliding shoe;

[0022] S4. When the forward oil cylinder reaches the limit position, the sliding of the precast beam end is completed under the synchronous cooperation of multiple sets of equipment. The control device controls the back of the semi-annular bracket to re-contact the outer surface of the disk body, and the rotating support disk moves the entire precast beam end downward under the drive of the jacking oil cylinder. When the precast beam end falls on the top of the abutment again, the on-site equipment loses contact with the precast beam end. When the jacking oil cylinder is completely reset, the forward oil cylinder is reset under the action of the control device, and then the cycle S1 to S3 is continued until the precast beam end reaches the predetermined position.

[0023] The present invention provides an improved synchronous sliding device and method for a bridge jack, which has the following beneficial effects:

[0024] 1. This improved synchronous sliding device for jacking bridge jacks is equipped with a rotating support plate, which is used in conjunction with a jacking cylinder group. The limited rotation of the rotating support plate offsets the beam displacement caused by the sudden change of sliding resistance, thereby improving the installation accuracy of the bridge beam. The plate is fixed in the lifting and lowering stages by cooperating with a brake bracket to prevent the rotation of the plate during the lifting process from reducing the installation accuracy.

[0025] 2. This improved synchronous sliding device for jacking bridge jacks sets a lateral compensation mechanism, uses a magnetic sliding shoe in conjunction with a screw rod and a transverse compensation slide rail, and realizes precise lateral compensation adjustment of the jacking cylinder group through screw rod transmission. At the same time, it realizes stable fixation in the lifting and lowering stages through the screw rod and electromagnet assembly, realizes real-time adjustment and compensation during the bridge jacking process, improves the installation accuracy of the bridge jacking, and improves the horizontal compensation freedom of the cylinder by cooperating with the magnetic sliding shoe and the cylinder support plate, preventing the sliding shoe from getting stuck and affecting the installation accuracy of the bridge.

[0026] 3. This improved synchronous sliding device of the jacking bridge jack realizes the overall adjustment compensation of the jacking cylinder group in the horizontal direction by setting a transverse compensation slide rail and using the rail body in conjunction with the transverse compensation mechanism, thereby improving the installation accuracy of the device. The rail body is used in conjunction with the lifting compensation cylinder to achieve the adjustment balance of the front and rear heights of the jacking cylinder group, thereby balancing the overall force of the jacking cylinder group and helping to improve the installation accuracy of the bridge.

[0027] 4. This improved synchronous sliding device for the bridge jacking jack sets a deviation sensing mechanism, which is used in conjunction with a transverse compensation slide rail to sense the horizontal offset and height difference between the two sets of slide rails in real time, thereby reducing the distance error and height error between the two sets of slide rails, and helping to improve the overall accuracy of the device when pushing the bridge, thereby improving the overall installation accuracy of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0029] Figure 2This is a schematic diagram of the overall structure of the rotating support plate of the present invention;

[0030] Figure 3 This is a cross-sectional view showing the positional relationship between the disc body and the movable disc seat of the present invention;

[0031] Figure 4 This is a schematic diagram of the positional relationship between the rotating support plate and the lateral compensation mechanism of the present invention;

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

[0033] Figure 6 This is a schematic diagram of the top structure of the transverse compensating slide rail of the present invention;

[0034] Figure 7 This is a schematic diagram of the bottom structure of the transverse compensating slide rail of the present invention;

[0035] Figure 8 This is a cross-sectional view of the internal structure of the rail body of the present invention;

[0036] Figure 9 This is a 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. Push cylinder group; 11. Forward cylinder; 12. Lifting cylinder; 2. Rotating support plate; 21. Movable plate seat; 22. Plate body; 23. Brake bracket; 231. Electromagnetic slide rod; 232. Semi-annular bracket; 24. Elastic support rod; 3. Transverse compensation mechanism; 31. Magnetic slide shoe; 32. Cylinder support plate; 321. Magnetic slide rail; 322. Rotating base; 4. Transverse compensation slide rail; 41. Rail body; 42. Transverse adjustment mechanism; 421. Side-by-side cylinder group; 422. Contact slide plate; 43. Lifting compensation cylinder; 44. Laser ranging assembly; 5. Deviation sensing mechanism; 51. Rotating shaft frame; 52. Horizontal rotating frame; 53. Horizontal rotation angle encoder; 54. Vertical linkage rotating rod. DETAILED DESCRIPTION

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

[0040] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0041] Example 1

[0042] See also Figure 1-5 The present invention provides a technical solution: an improved synchronous sliding device for a jacking bridge jack, comprising a jacking cylinder group 1, the jacking cylinder group 1 comprising a forward oil cylinder 11, the back of the forward oil cylinder 11 being fixedly connected to a jacking oil cylinder 12, the jacking cylinder group 1 being connected to an external oil pumping device via an oil pipeline, the jacking cylinder group 1 being electrically connected to an external control device via a wire, the number of each of the forward oil cylinder 11 and the jacking oil cylinder 12 being two, the top of the jacking oil cylinder 12 being fixedly connected to a rotating support plate 2, the rotating support plate 2 comprising:

[0043] The movable disc seat 21 is rotatably connected to the top of the jacking cylinder 12, and a vibration sensor is embedded in the movable disc seat 21;

[0044] The disc body 22 is rotatably connected to the top of the movable disc base 21. The disc body 22 is fixedly connected to the movable disc base 21 via a torsion spring. A rubber ring is fixedly connected to the top of the disc body 22.

[0045] The brake bracket 23 is fixedly connected to the front of the movable disc base 21. The brake bracket 23 includes an electromagnetic slide 231, which is fixedly connected to the bottom of the movable disc base 21. A metal slide is slidably connected to the interior of the electromagnetic slide 231. The electromagnetic slide 231 is electrically connected to an external control device via a wire. The front of the electromagnetic slide 231 is fixedly connected to a semi-annular bracket 232 via a metal slide. The top cross-section of the semi-annular bracket 232 is Y-shaped, and the surface roughness of the back of the semi-annular bracket 232 is 1.6-10μm. The semi-annular bracket 232 is located on the front of the disc body 22.

[0046] An elastic support rod 24 is fixedly connected to the back of the jacking cylinder 12. The elastic support rod 24 includes a sliding sleeve and a sliding rod. The sliding sleeve is located on the back of the jacking cylinder 12. The sliding rod is slidably connected to the inside of 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 24 is rotatably connected to the bottom of the movable disc seat 21.

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

[0048] When in use, the jacking cylinder 12 is lifted under the control of the control device. During this process, the brake bracket 23 is energized under the control of the control device, and the semi-annular bracket 232 starts to slide under the drive of the electromagnetic slide rod 231. The back of the semi-annular bracket 232 contacts the outer surface of the disc body 22, thereby restricting the rotation of the disc body 22. After the top of the disc body 22 contacts the bottom of the precast beam end, the disc body 22 jacks up the precast beam end under the synchronous push of the jacking cylinders 12 of multiple sets of equipment. When the precast beam end is pushed to the highest point by the disc body 22, the brake bracket 23 is de-energized under the control of the control device, and the semi-annular bracket 232 releases the constraint on the disc body 22. The forward cylinder 11 is started under the control of the control device, and the forward 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 tend to slide laterally. During this process, the lateral sliding of the precast beam end drives the disc body 22 to rotate axially. The axial rotation of the disc body 22 squeezes the torsion spring, which offsets the lateral sliding of the precast beam end. During this process, the vibration sensor inside the movable disc seat 21 transmits vibration data in real time. When the lateral displacement of the precast beam end is large, the control device receives the returned vibration data and re-energizes the brake bracket 23. The semi-annular bracket 232 re-constrains the rotation of the disc body 22 to prevent excessive lateral displacement of the precast beam end.

[0050] When the forward movement cylinder 11 reaches the limit position, the brake bracket 23 is energized under the action of the control device, the semi-annular bracket 232 re-constrains the disc 22, and the lifting cylinder 12 is reset under the control of the control device. When the lifting cylinder 12 is completely reset, the device breaks away from contact with the end of the precast beam, and the forward movement cylinder 11 is reset under the control of the control device.

[0051] Example 2

[0052] See also Figure 1-8 On the basis of the first embodiment, the present invention provides a technical solution: the lateral movement compensation mechanism 3 includes a magnetic sliding shoe 31, the interior of the magnetic sliding shoe 31 is connected to a screw mother seat, a permanent magnet is buried at the bottom of the magnetic sliding shoe 31, the left and right sides of the magnetic sliding shoe 31 are rotatably connected to pulleys, the surface of the pulley is covered with rubber, the top of the magnetic sliding shoe 31 is rotatably connected to the cylinder support plate 32, the cylinder support plate 32 includes a magnetic sliding rail 321, an electromagnet is buried inside the magnetic sliding rail 321, the electromagnet is electrically connected to an external control device through a wire, the bottom of the magnetic sliding rail 321 is fixedly connected to a rotating base 322, the bottom of the rotating base 322 is connected to a circular through hole, the inner surface of the circular through hole is buried with a bearing, and the rotating base 322 is rotatably connected to the top of the magnetic sliding shoe 31 through the bearing;

[0053] There are two transverse compensating rails 4, each comprising 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 sliding shoe 31. An electromagnet is embedded in 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 sliding shoe 31 through a screw. A C-shaped slide groove is provided at the bottom of the rail body 41. A transverse adjustment mechanism 42 is fixedly connected to the bottom of the rail body 41. The transverse adjustment mechanism 42 comprises a parallel cylinder group 421. A contact slide 422 is fixedly connected to the right side of the parallel cylinder group 421. The parallel cylinder group 421 is connected to an external oil pumping equipment through an oil pipe. The top of the contact slide 422 is slidably connected to the inside of the C-shaped groove at the bottom of the rail body 41. The left and right sides of the rail body 41 are fixedly connected to the lifting compensation cylinder 43. The lifting compensation cylinder 43 is connected to the external oil supply equipment through an oil pipe. The left and right sides of the rail body 41 are fixedly connected to the laser ranging assembly 44. The laser ranging assembly 44 is electrically connected to the control equipment through a wire.

[0054] When in use, the rail body 41 is installed on the top of the prefabrication site behind the abutment before use. During this process, the laser ranging component 44 monitors the distance data from the laser ranging component 44 to the side of the prefabricated platform in real time, and feeds back the distance data to the control device, thereby allowing the control device to adjust the stroke of the parallel cylinder group 421, thereby driving the contact slide 422 to slide and clamp the side of the prefabricated platform, and adjusting the relative position of the rail body 41 on the top of the prefabricated platform. During lifting, the control device controls the electromagnet in the rail body 41 and the magnetic slide rail 321 to be energized. After the electromagnet is energized, the lifting cylinder 12 and the magnetic slide shoe 31 are fixed. When the lifting is completed, the electromagnet is de-energized. During the transverse movement process of Example 1, the laser ranging component 44 monitors the distance data from the laser ranging component 44 to the side of the prefabricated platform in real time. The distance from the rail body 41 to the side of the prefabrication site is analyzed by the feedback data of the laser ranging components 44 at both ends, and the height from the rail body 41 to the top of the prefabrication site is fed back by the distance sensor. The position state and overall posture of the lateral compensation mechanism 3 are judged by comparing the data of the laser ranging components 44 and the lifting compensation cylinder 43 on the two groups of rail bodies 41, and then the rotation of the screw motor is controlled to adjust the position of the magnetic sliding shoe 31, and then the overall posture of the cylinder support plate 32 is adjusted by the movement of the magnetic sliding shoe 31, and then the position and posture of the two groups of pushing cylinder groups 1 are adjusted, and the height of the rail body 41 is adjusted by adjusting the stroke of the two groups of lifting compensation cylinders 43, and then the front and rear height of the pushing cylinder group 1 are adjusted.

[0055] Example 3

[0056] See also Figure 1-10Based on 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 of the rail body 41, the rotating shaft frame 51 is internally rotatably connected to a horizontal rotating frame 52, the front of the horizontal rotating frame 52 is fixedly connected to an encoder, the top of the horizontal rotating frame 52 is fixedly connected to a horizontal rotation angle encoder 53, and the front of the horizontal rotating frame 52 is rotatably connected to a vertical linkage rotating rod 54.

[0057] During use, in the adjustment process of Example 2, 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 rotation angle encoder 53 and the encoder of the vertical linkage rotating rod 54 to rotate. The horizontal rotation angle encoder 53 and the encoder feed back their position and posture data to the control device, and the control device continues to execute the adjustment process in Example 2 according to the feedback data.

[0058] Example 4

[0059] See also Figure 1-10 Based on the first, second and third embodiments, the present invention provides a technical solution: a method for using an improved synchronous sliding device for a bridge jack:

[0060] S1. Before use, the rail body 41 is installed on the top of the prefabrication yard behind the abutment. During this process, the laser distance measuring assembly 44 monitors the distance data from the laser distance measuring assembly 44 to the side of the prefabricated platform in real time. By feeding back the distance data to the control device, the control device adjusts the stroke of the parallel cylinder group 421, thereby driving the contact slide 422 to slide and clamp the side of the prefabricated platform, adjusting the relative position of the rail body 41 on the top of the prefabricated platform, and then successively installing the lateral compensation mechanism 3, the jacking cylinder group 1, and the rotating support plate 2. After the installation of multiple sets of equipment is completed, the prefabricated beam end of the bridge is placed on the abutment;

[0061] After the precast beam end of the bridge is placed on the top of the disc body 22, the entire equipment is started through the external control device. After the equipment is started, the control device controls the brake bracket 23 to start. After the brake bracket 23 is started, the semi-annular bracket 232 slides backward, and the back of the semi-annular 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 plate 2 to lift at the same time. After the rotating support plate 2 has lifted 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 up by the disc body 22. After the precast beam end is lifted to the highest position, the semi-annular bracket 232 is reset under the control of the control device. During lifting, the control device controls the electromagnet in the rail body 41 and the magnetic slide rail 321 to be energized. After the electromagnet is energized, the lifting cylinder 12 and the magnetic shoe 31 are fixed. When the lifting is completed, the electromagnet is de-energized.

[0062] S3. After the precast beam end is lifted, the forward cylinder 11 pushes the lifting cylinder 12, which slides along the top of the magnetic sliding shoe 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 platform in real time, and adjusts the distance between the two rail bodies 41 in real time. The control device controls the working state of the screw motor, and then adjusts the position of the pushing cylinder group 1 by adjusting the position of the magnetic sliding shoe 31;

[0063] S4. When the forward oil cylinder 11 reaches the limit position, the sliding of the precast beam end is completed under the synchronous cooperation of multiple sets of equipment. The control device controls the back of the semi-annular bracket 232 to re-contact the outer surface of the disk body 22, and the rotating support disk 2 moves the entire precast beam end downward under the drive of the jacking oil cylinder 12. When the precast beam end falls on the top of the abutment again, the on-site equipment is out of contact with the precast beam end. When the jacking oil cylinder 12 is completely reset, the forward oil cylinder 11 is reset under the action of the control device, and then the cycle S1 to S3 is continued until the precast beam end reaches the predetermined position.

[0064] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An improved synchronous sliding device for a jacking bridge jack, comprising a jacking cylinder group (1), wherein the jacking cylinder group (1) is connected to an external oil pumping device through an oil pipeline, and the jacking cylinder group (1) is electrically connected to an external control device through a wire, and the jacking cylinder group (1) comprises a forward cylinder (11), and a jacking cylinder (12) is fixedly connected to the back of the forward cylinder (11), and is characterized in that: The top of the lifting oil cylinder (12) is fixedly connected to a rotating support plate (2), the bottom of the forward oil cylinder (11) is fixedly connected to a transverse compensation mechanism (3), the bottom of the transverse compensation mechanism (3) is slidably connected to a transverse compensation slide rail (4), and the left and right sides of the transverse compensation slide rail (4) are fixedly connected to a deviation sensing mechanism (5); The rotating support plate (2) comprises: A movable disc seat (21), the movable disc seat (21) being rotatably connected to the top of the jacking cylinder (12); 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) via a torsion spring, and a rubber ring is fixedly connected to the top of the disk body (22); A brake bracket (23), the brake bracket (23) is fixedly connected to the front of the movable disc seat (21), the brake bracket (23) includes an electromagnetic slide (231), the electromagnetic slide (231) is fixedly connected to the bottom of the movable disc seat (21), a metal slide is slidably connected inside the electromagnetic slide (231), the front of the electromagnetic slide (231) is fixedly connected to a semi-annular bracket (232) through the metal slide, and the semi-annular bracket (232) is located on the front of the disc body (22); An elastic support rod (24), the back of the jacking oil cylinder (12) is fixedly connected with the elastic support rod (24), the elastic support rod (24) comprises a sliding sleeve and a sliding rod, the sliding sleeve is located on the back of the jacking oil cylinder (12), the sliding rod is slidably connected to the inside of the sliding sleeve, the sliding rod and the sliding sleeve are fixedly connected by a spring, and the top of the sliding rod of the elastic support rod (24) is rotatably connected to the bottom of the movable disc seat (21); The lateral displacement compensation mechanism (3) includes a magnetic sliding shoe (31), the interior of the magnetic sliding shoe (31) is connected to a screw base, a permanent magnet is buried at the bottom of the magnetic sliding shoe (31), the left and right sides of the magnetic sliding shoe (31) are rotatably connected to pulleys, the top of the magnetic sliding shoe (31) is rotatably connected to a cylinder support plate (32), the cylinder support plate (32) includes a magnetic sliding rail (321), an electromagnet is buried inside the magnetic sliding rail (321), the bottom of the magnetic sliding rail (321) is fixedly connected to a rotating base frame (322), the bottom of the rotating base frame (322) is connected to a circular through hole, the inner surface of the circular through hole is buried with a bearing, and the rotating base frame (322) is rotatably connected to the top of the magnetic sliding shoe (31) through the bearing.

2. The improved synchronous sliding device for jacking bridge according to claim 1, characterized in that: The transverse compensating slide rail (4) comprises 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 sliding shoe (31), an electromagnet is buried 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 sliding shoe (31) through the screw, a C-shaped slide groove is provided at the bottom of the rail body (41), a transverse adjustment mechanism (42) is fixedly connected to the bottom of the rail body (41), the transverse adjustment mechanism (42) comprises a parallel oil cylinder group (421), the parallel oil cylinder group (421) is fixedly connected to the bottom of the rail body (41), and a contact slide plate (422) is fixedly connected to the right side of the parallel oil cylinder group (421), and the top of the contact slide plate (422) is slidably connected to the inside of the C-shaped groove at the bottom of the rail body (41).

3. The improved synchronous sliding device for jacking bridge according to claim 2, characterized in that: The left and right sides of the rail body (41) are both fixedly connected to a lifting compensation oil cylinder (43), and the left and right sides of the rail body (41) are both fixedly connected to a laser distance measurement component (44).

4. The improved synchronous sliding device for jacking bridge according to claim 3 is characterized in that: The deviation sensing mechanism (5) includes a rotating shaft frame (51), the rotating shaft frame (51) is fixedly connected to the front of the rail body (41), the rotating shaft frame (51) is rotatably connected to a horizontal rotating frame (52) inside, the front of the horizontal rotating frame (52) is fixedly connected to an encoder, the top of the horizontal rotating frame (52) is fixedly connected to a horizontal rotation angle encoder (53), and the front of the horizontal rotating frame (52) is rotatably connected to a vertical linkage rotating rod (54).

5. A method for using an improved synchronous sliding device for a jacking bridge, which is accomplished using the improved synchronous sliding device for a jacking bridge according to claim 4, characterized in that: S1. Before use, the rail body (41) is installed on the top of the prefabrication site behind the abutment. During this process, the laser distance measuring component (44) monitors the distance data from the laser distance measuring component (44) to the side of the prefabrication platform in real time. By feeding back the distance data to the control device, the control device adjusts the stroke of the parallel cylinder group (421), thereby driving the contact slide (422) to slide and clamp the side of the prefabrication platform, adjusting the relative position of the rail body (41) on the top of the prefabrication platform, and then sequentially installing the lateral compensation mechanism (3), the jacking cylinder group (1), and the rotating support plate (2). After the installation of multiple sets of equipment is completed, the prefabricated beam end of the bridge is placed on the abutment; S2. Place the prefabricated beam end of the bridge on the top of the disc (22). After it is placed securely, start the entire device through the external control device. After the device is started, the control device controls the brake bracket (23) to start. After the brake bracket (23) is started, the semi-annular bracket (232) slides backward. The back of the semi-annular bracket (232) contacts the outer surface of the disc (22), restricting the rotation of the disc (22). All the jacking cylinders (12) on site drive the rotating support disc (2) to rise at the same time. After the dynamic support plate (2) is lifted for a certain distance, the top of the plate body (22) contacts the bottom of the precast beam end, and the precast beam end is lifted up by the plate body (22). After the precast beam end is lifted up to the highest position, the semi-annular bracket (232) is reset under the control of the control device. During the lifting, the control device controls the electromagnets in the rail body (41) and the magnetic slide rail (321) to be energized. After the electromagnets are energized, the lifting cylinder (12) and the magnetic slide shoe (31) are fixed. When the lifting is completed, the electromagnets are de-energized. S3, after the end of the prefabricated beam is lifted, the forward oil cylinder (11) pushes the lifting oil cylinder (12), and the lifting oil cylinder (12) slides along the top of the magnetic sliding shoe (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 prefabricated table in real time, adjusts the distance between the two rail bodies (41) in real time, and controls the working state of the screw motor to adjust the position of the pushing oil cylinder group (1) by adjusting the position of the magnetic sliding shoe (31); S4. When the forward oil cylinder (11) reaches the limit position, the sliding of the precast beam end under the synchronous cooperation of multiple sets of equipment is completed. The control device controls the back of the semi-annular bracket (232) to re-contact the outer surface of the disc body (22). The rotating support disc (2) moves the entire precast beam end downward under the drive of the jacking oil cylinder (12). When the precast beam end falls on the top of the abutment again, the on-site equipment and the precast beam end are disengaged. When the jacking oil cylinder (12) is completely reset, the forward oil cylinder (11) is reset under the action of the control device, and then the cycle S1 to S3 is continued until the precast beam end reaches the predetermined position.

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