A multi-dimensional bridge correction device

Abstract

The present application discloses a multi-dimensional deviation correction device for a bridge, comprising: a jacking system and a translation system, wherein the translation system is arranged around the periphery of the jacking system, and the translation system applies a force to the jacking system and causes the jacking system to slide; the translation system comprises: a base plate, a rotating body and a jacking jack, wherein the rotating body is rotatably connected to the periphery of the base plate, the jacking jack is installed on the rotating body and the piston end of the jacking jack passes through the rotating body and extends into the inner side, wherein the jacking direction of the jacking jack is adjusted by 360° rotation through the above-mentioned rotation connection; the jacking system is slidably connected to the base plate, and under the jacking action of the jacking jack, the jacking system slides relative to the base plate. The mutual cooperation of the jacking system and the translation system in the present application can realize the deviation correction adjustment in three dimensions of vertical jacking and horizontal direction, and the rotator and the jacking system arranged on the rotator can realize the deviation correction adjustment in 360° in the circumferential direction by rotating the jacking jack.

Description

Technical Field

[0001] The present application belongs to the technical field of bridge correction, and specifically relates to a multi-dimensional bridge correction device, which can adjust the deviation of the bridge in both horizontal and vertical directions at the same time. Background Art

[0002] As an overhead artificial passage for traffic, the bridge structure consists of a superstructure and a substructure. The superstructure includes the bridge body and the bridge deck; the substructure includes piers, abutments and foundations. The original purpose of building bridges was mainly to solve the traffic problem of crossing water or valleys, but with the continuous advancement of modern bridge-building technology, the use and scale of bridges are becoming more and more extensive. For example, large and medium-sized cities have introduced elevated bridges to relieve traffic pressure, and their spans and styles are endless.

[0003] However, in recent years, investigations have found the following problems: (1) Various problems have arisen in many existing bridges, such as bearing damage, shedding of structural protective layers, cracks in the bridge deck, etc.; (2) The original bridge design does not meet the existing planning or usage functions. For example, in urban reconstruction, the connection between the original bridge and the new bridge has linear deviations and insufficient clearance at the bottom of the bridge, which affects navigation and traffic.

[0004] In order to solve the above problems and considering the economic practicality, bridge lifting and replacement technology is often used to adapt the original bridge. When the bridge is lifted, it will be adjusted to a large extent, because the bridge will be at a certain slope angle, and horizontal force will definitely be generated during lifting. Even if a series of limiting measures have been taken in advance, it is impossible to completely avoid the lateral horizontal deviation of the bridge.

[0005] In order to solve the problem of misalignment of bridge structures after jacking, the existing three-dimensional jacks used for bridge correction can only perform displacement adjustment in the front, rear, left and right directions in the horizontal direction. Moreover, to achieve adjustment in two directions under the same tonnage, two jacking jacks need to be installed. The overall dimensions of the entire device are large and cannot meet the requirements of installation in a small space. At the same time, some bridges not only need to be adjusted in two horizontal directions, but also need horizontal rotation adjustment. In this case, ordinary three-dimensional jacks cannot meet the construction needs. Summary of the invention

[0006] In view of the shortcomings or deficiencies of the above-mentioned prior art, the technical problem to be solved by the present application is to provide a multi-dimensional bridge correction device, wherein the jacking system and the translation system in the device cooperate with each other to achieve vertical jacking and three-dimensional correction adjustment in the horizontal direction, and the jacking system can achieve 360° correction in the circumferential direction under the action of the translation system.

[0007] To solve the above technical problems, this application is implemented through the following technical solutions:

[0008] The present application proposes a multi-dimensional bridge deviation correction device, comprising: a jacking system and a translation system, wherein the translation system is arranged around the periphery of the jacking system, and the translation system applies a force to the jacking system to cause the jacking system to slide;

[0009] The translation system comprises: a base plate, a rotating body and a push jack, wherein the rotating body is rotatably connected to the outer periphery of the base plate, the push jack is installed on the rotating body and the piston end of the push jack passes through the rotating body and extends into the inner side, wherein the push direction of the push jack is adjusted by 360° rotation through the above-mentioned rotation connection;

[0010] The jacking system is slidably connected to the base plate, and under the pushing action of the jacking jack, the jacking system slides relative to the base plate.

[0011] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the cross-sectional structure of the rotating body includes a connecting portion and a bending portion connected to the connecting portion, the connecting portion is rotatably connected to the base plate, and the bending portion is bent toward the center direction of the rotating body.

[0012] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the connecting portion, the bending portion and the bottom plate form a sliding space with an opening, wherein the diameter of the sliding space is larger than the bottom dimension of the jacking system, and the diameter of the opening is smaller than the bottom dimension of the jacking system.

[0013] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the rotating body and the base plate are rotationally connected via a swinging friction-reducing ring.

[0014] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the push jack is installed on the rotating body and the piston end of the push jack passes through the connecting part and extends into the sliding space.

[0015] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the bottom plate and the bottom of the jacking system are also provided with a friction-reducing slide plate, and both sides of the friction-reducing slide plate are also coated with silicone grease.

[0016] Furthermore, in the above-mentioned multi-dimensional deviation-correcting device for a bridge, the jacking system comprises: a sliding shoe, a jacking piston, an oil inlet cylinder and an oil return cylinder, the sliding shoe is slidably connected to the bottom plate, and the jacking piston is embedded in the sliding shoe;

[0017] The oil inlet cylinder is arranged between the bottom of the lifting piston and the sliding shoe, the oil inlet cylinder is connected with the lifting oil inlet passage arranged through the sliding shoe, and the lifting oil inlet passage is also provided with a lifting oil inlet port;

[0018] The oil return cylinder is arranged between the outer side of the jacking piston and the sliding shoe, and the oil return cylinder is connected to the jacking oil return channel arranged through the sliding shoe, and the jacking oil return channel is also provided with a jacking oil return port.

[0019] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the bottom portion of the lifting piston is hollowed out and forms the oil inlet cylinder with the inner wall of the sliding shoe, and the annular space between the side wall of the lifting piston and the sliding shoe forms the oil return cylinder.

[0020] Furthermore, in the above-mentioned multi-dimensional bridge correction device, a lifting limit ring is also installed on the side wall of the lifting piston.

[0021] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the upper surface of the lifting piston is provided with a concave arc surface, and a correction saddle is installed on the arc surface by screws.

[0022] Compared with the prior art, this application has the following technical effects:

[0023] The jacking system and the translation system in the present application cooperate with each other to realize three-dimensional correction and adjustment in vertical jacking (Z axis) and horizontal direction (X axis and Y axis). The rotating body and the jacking system arranged on the rotating body can realize full-angle (360°) correction in the circumferential direction by rotating the jacking jack; the jacking piston in the present application is built into the sliding shoe, making its structure compact, and the external dimensions of the correction and adjustment device under the same tonnage are smaller, which meets the requirements of installation and construction in a small space; the bottom plate and the rotating body in the present application are rotatably connected by a swinging anti-friction ring, so that the angle required for correction can be manually rotated and adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0025] Figure 1 : The present application can be used as a cross-sectional elevation view of a multi-dimensional deviation correction device;

[0026] Figure 2 : The present application can be used as a top view of a multi-dimensional deviation correction device;

[0027] Among them, 1-rotating body, 2-slipper, 3-lifting limit ring, 4-lifting piston, 5-correcting saddle, 6-screw, 7-bottom plate, 8-friction reducing slide plate, 9-swinging friction reducing ring, 10-pushing jack, 11-lifting oil inlet, 12-lifting oil return port, 13-lifting oil return channel, 14-lifting oil inlet channel, 15-oil inlet cylinder, 16-oil return cylinder, 17-lifting oil port, 18-lifting oil return port. DETAILED DESCRIPTION

[0028] The concept, specific structure and technical effects of the present application will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present application.

[0029] like Figure 1 and Figure 2 As shown, in one of the embodiments of the present application, a multi-dimensional bridge correction device includes: a jacking system and a translation system, wherein the translation system is arranged around the periphery of the jacking system, and the translation system applies a force to the jacking system and causes the jacking system to slide; the translation system includes: a base plate 7, a rotating body 1, and a pushing jack 10, wherein the rotating body 1 is rotatably connected to the periphery of the base plate 7, the pushing jack 10 is installed on the rotating body 1 and the piston end of the pushing jack 10 passes through the rotating body 1 and extends inwardly, wherein the pushing direction of the pushing jack 10 is adjusted by 360° rotation through the above-mentioned rotating connection; the jacking system is slidably connected to the base plate 7, and under the pushing action of the pushing jack 10, the jacking system slides relative to the base plate 7. In this embodiment, the jacking system and the translation system cooperate with each other to achieve three-dimensional correction adjustment in the vertical jacking (Z axis) and horizontal direction (X axis and Y axis). The rotating body 1 and the jacking system arranged on the rotating body 1 can achieve full-angle (360°) correction in the circumferential direction by rotating the jacking jack 10.

[0030] like Figure 1 As shown, in this embodiment, the cross-sectional structure of the rotating body 1 includes a connecting portion and a bending portion connected to the connecting portion, the connecting portion is rotatably connected to the bottom plate 7, and the bending portion is bent toward the center direction of the rotating body. The bending portion, the connecting portion, and the end of the bottom plate 7 have a limiting groove, and the limiting groove allows the sliding shoe 2 described below to be embedded in the limiting groove. The limiting groove can limit the sliding displacement of the sliding shoe 2 and prevent it from escaping from the sliding space described below due to improper operation during the jacking operation.

[0031] Furthermore, the connecting portion, the bent portion and the bottom plate 7 form a sliding space with an opening, wherein the diameter of the sliding space is larger than the bottom size of the jacking system, and the diameter of the opening is smaller than the bottom size of the jacking system. The above-mentioned size limitation further enables the sliding shoe 2 in the jacking system described below to slide in the sliding space and will not be separated from the sliding space.

[0032] The rotating body 1 and the bottom plate 7 are rotatably connected via a swing anti-friction ring 9. Specifically, the swing anti-friction ring 9 is installed between the rotating body 1 and the bottom plate 7 via screws. Under the adjustment of the swing anti-friction ring 9, a force is applied to the rotating body 1. Then, the rotating body 1 and the jacking jack 10 installed on the rotating body 1 can rotate relative to the bottom plate 7 in a 360° circumferential direction (the jacking direction can be adjusted at any time manually) to achieve full-angle deviation correction in the circumferential direction. The detachable connection via the screws can facilitate the maintenance operations such as disassembly and replacement of the swing anti-friction ring 9.

[0033] Furthermore, in the above-mentioned multi-dimensional deviation correction device for a bridge, the jacking jack 10 is installed on the rotating body 1 and the piston end of the jacking jack 10 passes through the connecting portion and extends into the sliding space. Figure 1 shown.

[0034] In this embodiment, the rotating body 1 and the bottom plate 7 are in a round box-shaped structure, which can accommodate or set the jacking system. The round box-shaped structure is conducive to realizing circumferential rotation adjustment.

[0035] The lifting system includes: a lifting piston 4, a sliding shoe 2 and a lifting oil circuit. The lifting piston 4 is arranged in the sliding shoe 2, and an oil inlet cylinder 15 and an oil return cylinder 16 are provided between the lifting piston 4 and the sliding shoe 2. Oil is supplied to the oil inlet cylinder 15 through the lifting oil circuit, and the lifting piston 4 is lifted; oil is returned to the oil return cylinder 16 through the lifting oil circuit, and the lifting piston 4 falls. The lifting piston 4 in this embodiment is built into the sliding shoe 2, and the structure is compact, so that the external dimensions of the deviation correction adjustment device under the same tonnage are smaller, which meets the installation and construction requirements in a narrow space.

[0036] In this embodiment, the lifting system is actually a built-in independent lifting jack embedded in the correction jack, and the sealing of its outer cylinder is mainly borne by the sliding shoe 2. The inner cylinder is a lifting piston 4, and the lifting piston 4 moves out of the cylinder and falls into the cylinder by moving up and down. The lifting piston 4 is similar to a "columnar" structure, and its upper surface is ground into an inwardly concave arc surface by a lathe, which can be conveniently used to install the correction saddle 5 described below. The bottom part of the lifting piston 4 is hollowed out to form an oil inlet cylinder 15, and the lifting piston 4 is lifted out of the cylinder by oil inlet through the oil inlet.

[0037] In this embodiment, the sliding shoe 2 is a tube-shaped structure, and the sliding shoe 2 includes an upper tube-shaped structure and a bottom support structure smoothly connected to the upper tube-shaped structure, wherein the outer diameter of the bottom support structure is greater than or equal to the outer diameter of the upper tube-shaped structure. Figure 1As shown, this embodiment only illustrates the situation where the outer diameter of the bottom support structure is larger than the outer diameter of the upper cylindrical structure. This arrangement can increase the bottom contact and sliding area of ​​the sliding shoe and improve the sliding stability of the jacking system during the sliding process.

[0038] Among them, the jacking system is located on the base plate 7 as an independent jacking partition, and the jacking system can be pushed by the jacking jack 10 and slide on the anti-friction slide plate on the top surface of the base plate 7, wherein the amount of sliding is determined by the design correction value of the jacking jack 10.

[0039] Compared with the existing jacks that can only correct deviation in one direction, it can also meet the requirements of vertical and horizontal two-way correction. In this embodiment, the jacking system is embedded in the translation system, and the translation system is equipped with a swing anti-friction ring, which can adjust the horizontal correction direction 360° manually. The structure is compact, and the external dimensions of the correction adjustment device under the same tonnage are smaller.

[0040] Furthermore, if Figure 1 As shown, in this embodiment, the lifting oil circuit includes a lifting oil inlet 11 and a lifting oil inlet channel 14 connected to the lifting oil inlet 11, the lifting oil inlet 11 is arranged on the sliding shoe 2, and the lifting oil inlet channel 14 penetrates the sliding shoe 2 and is connected to the oil inlet cylinder 15. In this embodiment, oil is fed into the oil inlet cylinder 15 through the lifting oil inlet 11 and the lifting oil inlet channel 14, and the lifting piston 4 is lifted.

[0041] Furthermore, the lifting oil circuit further includes a lifting oil return port 12 and a lifting oil return passage 13 connected to the lifting oil return port 12, the lifting oil return port 12 is provided on the sliding shoe 2, and the lifting oil return passage 13 penetrates the sliding shoe 2 and is connected to the oil return cylinder 16. In this embodiment, the oil is returned to the oil return cylinder 16 through the lifting oil return port 12 and the lifting oil return passage 13, and the lifting piston 4 falls.

[0042] Among them, in this embodiment, the jacking system is connected to the computer through a PLC hydraulic synchronous control system. Under the control of the PLC hydraulic synchronous control system, the hydraulic oil is delivered by the pump station to the jacking oil inlet 11, and then pressed to the oil inlet cylinder 15 through the jacking oil inlet channel 14, and then the jacking piston 4 is lifted; when the hydraulic oil is delivered by the pump station to the jacking oil return port 12, it flows back to the oil return cylinder 16 through the jacking oil return channel 13, and then the jacking piston 4 falls into the cylinder.

[0043] In this embodiment, the bottom portion of the lifting piston 4 is hollowed out and forms the oil inlet cylinder 15 with the inner wall of the sliding shoe 2, and the annular space between the side wall of the lifting piston 4 and the sliding shoe 2 forms the oil return cylinder 16. Figure 1 shown.

[0044] Furthermore, a lifting limit ring 3 is installed on the side wall of the lifting piston 4, and the lifting limit ring 3 can limit the maximum cylinder stroke of the lifting piston 4.

[0045] In this embodiment, the upper surface of the lifting piston 4 is provided with a concave arc surface, and a correction saddle 5 is installed on the arc surface by means of screws 6. Since the screws 6 are only fixed to the bottom of the correction saddle 5, the upper part of the correction saddle 5 is a free end. When a force is applied to the correction saddle 5, the correction saddle 5 can swing at a certain angle, and the swing angle is less than or equal to 5°. Through the above-mentioned setting method, this embodiment can make the lifting plane and the lifting piston 4 fit tightly during lifting.

[0046] Furthermore, a friction-reducing slide plate 8 is provided between the bottom plate 7 and the sliding shoe 2 in the jacking system; the jacking system slides on the friction-reducing slide plate 8 on the bottom plate 7 under the jacking action of the translation system, wherein the amount of the sliding movement is determined by the deviation correction value set by the jacking jack 10. Due to the provision of the friction-reducing slide plate 8, the friction coefficient between the bottom plate 7 and the sliding shoe 2 is only 0.05 at most, so that the horizontal thrust is also very small.

[0047] Furthermore, in a specific implementation, silicone grease may be coated on both sides of the wear-reducing slide plate 8 to further reduce the friction force generated during the sliding process.

[0048] In this embodiment, the jacking jack 10 is also provided with a jacking oil port 17 and a jacking oil return port 18. The translation system is connected to the computer through a PLC hydraulic synchronous control system. Under the control of the PLC hydraulic synchronous control system, the hydraulic oil is delivered from the pump station to the jacking oil port 17 and then delivered to the jacking jack 10, and then the piston end of the jacking jack 10 pushes outward to apply a jacking force to the slipper 2; when the hydraulic oil is delivered from the pump station to the jacking oil return port 18 and flows back to the jacking jack 10, then the piston end of the jacking jack 10 falls inward, gradually reducing the jacking force on the slipper 2 until the jacking force on the slipper 2 is eliminated.

[0049] The construction steps of this embodiment are as follows:

[0050] The present embodiment is placed on the bridge pier, wherein the bottom plate 7 is the force-bearing surface, the lifting piston 4 set in the sliding shoe 2 is started to pre-press upward to contact the bridge, and then the jacking jack 10 is rotated horizontally according to the direction in which the bridge needs to be corrected. Since a swinging anti-friction ring 9 is installed between the bottom plate 7 and the rotating body 1, the horizontal rotation force is very small, and it can be manually adjusted when the lifting piston 4 contacts the bottom of the bridge. After the correction direction is positioned, the lifting piston 4 in the sliding shoe 2 is started to push the bridge upward, and then the jacking jack 10 is started to push horizontally, pushing the sliding shoe 2 to translate on the bottom plate 7. Since the anti-friction sliding plate 8 is installed between the bottom of the sliding shoe 2 and the bottom plate 7, the friction coefficient between the sliding shoe 2 and the bottom plate 7 is only 0.05 at most, so that the horizontal thrust is also very small. The above-mentioned translation system stops working after pushing to the preset position. If it is necessary to adjust the level again, the rotating body 1 is rotated horizontally, and the push jack 10 installed on the rotating body 1 is also rotated horizontally accordingly, and then rotated to the direction of the required horizontal correction and adjusted again.

[0051] The correction of the jacking direction (Z axis) of the present application relies on the jacking piston in the jacking system to come out of the cylinder and press the bridge superstructure to adjust the existing elevation, and the correction of the horizontal direction (X axis and Y axis) relies on the jacking jack to push the sliding shoe of the jacking system to drive the bridge superstructure to move horizontally synchronously. Among them, there is a friction-reducing slide between the sliding shoe and the bottom plate, so that a very small jacking force can push the sliding shoe, and the swinging anti-friction ring arranged between the bottom plate and the rotating body allows the horizontal correction direction to rotate 360°, and the jacking direction can be adjusted at any time only manually.

[0052] The above embodiments are only used to illustrate the technical solution of the present application but not to limit it. The present application is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solution of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A multi-dimensional bridge correction device, It is characterized in that include: A jacking system and a translation system, wherein the translation system is arranged around the periphery of the jacking system, and the translation system applies a force to the jacking system to cause the jacking system to slide; The translation system comprises: a base plate, a rotating body and a push jack, wherein the rotating body is rotatably connected to the outer periphery of the base plate, the push jack is installed on the rotating body and the piston end of the push jack passes through the rotating body and extends into the inner side, wherein the push direction of the push jack is adjusted by 360° rotation through the above-mentioned rotation connection; The jacking system is slidably connected to the base plate, and under the pushing action of the jacking jack, the jacking system slides relative to the base plate. The cross-sectional structure of the rotating body includes a connecting portion and a bending portion connected to the connecting portion, the connecting portion is rotatably connected to the bottom plate, and the bending portion is bent toward the center direction of the rotating body. The connecting portion, the bending portion and the bottom plate form a sliding space with an opening, wherein the diameter of the sliding space is larger than the bottom size of the jacking system, and the diameter of the opening is smaller than the bottom size of the jacking system. The push jack is mounted on the rotating body and the piston end of the push jack passes through the connecting portion and extends into the sliding space. The lifting system comprises: a sliding shoe, a lifting piston, an oil inlet cylinder and an oil return cylinder, the sliding shoe is slidably connected to the bottom plate, and the lifting piston is embedded in the sliding shoe; The oil inlet cylinder is arranged between the bottom of the lifting piston and the sliding shoe, the oil inlet cylinder is connected with the lifting oil inlet passage arranged through the sliding shoe, and the lifting oil inlet passage is also provided with a lifting oil inlet port; The oil return cylinder is arranged between the outer side of the lifting piston and the sliding shoe, the oil return cylinder is connected to the lifting oil return passage arranged through the sliding shoe, and the lifting oil return passage is also provided with a lifting oil return port. The bottom portion of the lifting piston is hollowed out and forms the oil inlet cylinder with the inner wall of the sliding shoe, and the annular space between the side wall of the lifting piston and the sliding shoe forms the oil return cylinder.

2. The multi-dimensional bridge correction device according to claim 1 is characterized in that: The rotating body and the bottom plate are rotatably connected via a swinging anti-friction ring.

3. The multi-dimensional bridge correction device according to claim 1 is characterized in that: The bottom plate and the bottom of the jacking system are also provided with anti-friction sliding plates, and both sides of the anti-friction sliding plates are coated with silicone grease.

4. The multi-dimensional bridge correction device according to claim 1 is characterized in that: A lifting limit ring is also installed on the side wall of the lifting piston.

5. The multi-dimensional bridge deviation correction device according to claim 1 is characterized in that: The upper surface of the lifting piston is provided with an inwardly concave arc surface, and a deviation-correcting saddle is installed on the arc surface by screws.

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