A multi-dimensional bridge correction device

Abstract

The present application discloses a multi-dimensional deviation correction device for a bridge, comprising: a translation system, which has a base, a shell, a swinging anti-friction ring and a jacking jack; the swinging anti-friction ring is arranged between the base and the shell, the shell can rotate circumferentially relative to the base, and the base and the shell form a accommodating space; and a jacking system, which is embedded in the accommodating space and slidably connected with the base; the piston end of the jacking jack passes through the shell and extends into the interior of the shell, and under the jacking action of the jacking jack, the jacking system slides relative to the base. In the present application, the jacking system is embedded in the accommodating space of the translation system, with a compact structure, and the external dimensions of the deviation correction and adjustment device under the same tonnage are smaller, which meets the requirements of installation and construction in a narrow space.

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. And 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. Moreover, due to the large footprint, ordinary three-dimensional jacks are not applicable when the jacking space is limited. 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. Since its jacking system is embedded in the translation system, the structure is compact, and the correction and adjustment device with the same tonnage has smaller external dimensions, which can meet the requirements of installation and construction in a small space.

[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 translation system having a base, a shell, a swinging anti-friction ring and a jacking jack;

[0009] The swing anti-friction ring is arranged between the base and the shell, the shell can rotate circumferentially relative to the base, and the base and the shell form a containing space;

[0010] and a lifting system, which is embedded in the accommodation space and slidably connected to the base;

[0011] The piston end of the jacking jack passes through the outer shell and extends into the inner part of the outer shell. Under the pushing action of the jacking jack, the jacking system slides relative to the base.

[0012] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the swinging wear-reducing ring is installed between the base and the outer shell by screws.

[0013] Further, in the above-mentioned multi-dimensional deviation-correcting device for a bridge, the jacking system comprises: a sliding shoe, which is slidably connected to the base;

[0014] A lifting piston, which is embedded in the sliding shoe;

[0015] An oil inlet cylinder is arranged between the bottom of the lifting piston and the sliding shoe, the oil inlet cylinder is connected to a lifting oil inlet passage that runs through the sliding shoe, and a lifting oil inlet port is also arranged on the lifting oil inlet passage;

[0016] And an oil return cylinder, which is formed in the annular space between the outer side of the lifting piston and the sliding shoe, the oil return cylinder is connected to the lifting oil return channel set through the sliding shoe, and the lifting oil return channel is also provided with a lifting oil return port.

[0017] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the sliding shoe is a tube-shaped structure, and the sliding shoe includes an upper tube-shaped structure and a bottom supporting structure smoothly connected to the upper tube-shaped structure, wherein the outer diameter of the bottom supporting structure is greater than or equal to the outer diameter of the upper tube-shaped structure.

[0018] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the upper surface of the lifting piston is also provided with a mounting surface, the mounting surface is connected to the fixed end of the correction saddle by screws, and the free end of the correction saddle is suspended.

[0019] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the swing angle of the correction saddle is less than or equal to 5°.

[0020] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the mounting surface is a spherical surface structure in a concave state.

[0021] 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.

[0022] Furthermore, in the above-mentioned multi-dimensional bridge correction device, a friction-reducing slide plate is also provided between the sliding shoe and the base.

[0023] Furthermore, in the above-mentioned multi-dimensional bridge correction device, the jacking system and the translation system are both connected to a computer via a PLC hydraulic synchronous control system.

[0024] Compared with the prior art, this application has the following technical effects:

[0025] The jacking system in the present application is embedded in the accommodation space of the translation system, and has a compact structure. The deviation correction and adjustment device under the same tonnage has a smaller external dimension, which meets the requirements of installation and construction in a narrow space.

[0026] The jacking system and the translation system in the present application cooperate with each other to realize the three-dimensional deviation correction adjustment in the vertical jacking (Z axis) and the horizontal direction (X axis and Y axis). The housing and the jacking system arranged on the housing can realize the full-angle (360°) deviation correction in the circumferential direction by rotating the jacking jack.

[0027] In the present application, a swing anti-friction ring is installed between the base and the shell, so that the angle required for correction can be manually rotated and adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

[0029] Figure 1 : The present application can be used as a cross-sectional elevation view of a multi-dimensional deviation correction device;

[0030] Figure 2 : The present application can be used as a top view of a multi-dimensional deviation correction device;

[0031] Among them, 1-housing, 2-slipper, 3-lifting limit ring, 4-lifting piston, 5-correcting saddle, 6-screw, 7-base, 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

[0032] 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.

[0033] 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 translation system, which has a base 7, an outer shell 1, a swinging anti-friction ring 9 and a pushing jack 10; the swinging anti-friction ring 9 is arranged between the base 7 and the outer shell 1, and the outer shell 1 can rotate circumferentially relative to the base 7, and the base 7 and the outer shell 1 form a accommodating space; and a jacking system, which is arranged at the lower part of the bridge to be jacked, the jacking system is embedded in the accommodating space and is slidably connected to the base 7; the piston end of the pushing jack 10 passes through the outer shell 1 and extends into the interior of the outer shell 1, and under the pushing action of the pushing jack 10, the jacking system slides relative to the base 7. In the present embodiment, the jacking system is embedded in the accommodating space of the translation system, with a compact structure, and the outer dimensions of the deviation correction and adjustment device under the same tonnage are smaller, which meets the requirements of installation in a narrow space; in the present embodiment, the jacking system and the translation system cooperate with each other to realize three-dimensional deviation correction and adjustment in vertical jacking (Z axis) and horizontal direction (X axis and Y axis), and the shell 1 and the jacking system arranged on the shell 1 can realize full-angle (360°) deviation correction in the circumferential direction by rotating the jacking jack 10.

[0034] The swing anti-friction ring 9 is installed between the base 7 and the housing 1 by screws. Under the adjustment of the swing anti-friction ring 9, a force is applied to the housing 1, so that the housing 1 and the jacking jack 10 installed on the housing 1 can rotate relative to the base 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 through the screws can facilitate the maintenance operations such as disassembly and replacement of the swing anti-friction ring 9.

[0035] like Figure 1 As shown, in this embodiment, the cross-sectional structure of the housing 1 includes a connecting portion and a bending portion connected to the connecting portion, the connecting portion is rotatably connected to the base 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 base 7 have a limiting groove, which 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 accommodation space described below due to improper operation during the jacking operation.

[0036] Furthermore, the connecting portion, the bent portion and the base 7 form a receiving space with an opening, wherein the diameter of the receiving 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 receiving space and will not escape from the receiving space.

[0037] In this embodiment, the housing 1 and the base 7 are in a round box-shaped structure, which is conducive to circumferential rotation adjustment.

[0038] The jacking system includes: a slipper 2, which is slidably connected to the base 7; a jacking piston 4, which is embedded in the slipper 2; an oil inlet cylinder 15, which is arranged between the bottom of the jacking piston 4 and the slipper 2, the oil inlet cylinder 15 is connected to the jacking oil inlet channel 14 set through the slipper 2, and the jacking oil inlet port 11 is also provided on the jacking oil inlet channel 14; and an oil return cylinder 16, which is formed in an annular space between the outer side of the jacking piston 4 and the slipper 2, the oil return cylinder 16 is connected to the jacking oil return channel 13 set through the slipper 2, and the jacking oil return port 12 is also provided on the jacking oil return channel 13; oil is supplied to the oil inlet cylinder 15 through the jacking oil inlet port 11 and the jacking oil inlet channel 14, and the jacking piston 4 is lifted; the oil return cylinder 16 returns oil through the jacking oil return port 12 and the jacking oil return channel 13, and the jacking piston 4 falls. The lifting piston 4 in this embodiment is built into the sliding shoe 2, which has a compact structure and can also make the external dimensions of the deviation correction and adjustment device under the same tonnage smaller, meeting the requirements of installation and construction in a narrow space.

[0039] 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 1 As 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.

[0040] 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, which is similar to a tube boot structure, narrow at the top and wide at the bottom. The inner cylinder is a lifting piston 4, which moves up and down to get out of the cylinder and fall into the cylinder. 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.

[0041] Among them, the jacking system is located on the base 7 as an independent jacking partition. 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 7, wherein the amount of sliding is determined by the design correction value of the jacking jack 10.

[0042] 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.

[0043] In this embodiment, the upper surface of the lifting piston 4 is also provided with a mounting surface, and the mounting surface is connected to the fixed end of the correction saddle 5 by means of screws 6, and the free end of the correction saddle 5 is suspended. Since the screws 6 are only fixed to the bottom (fixed end) of the correction saddle 5, the upper part of the correction saddle 5 is the free end. When a force is applied to the correction saddle 5 (or the correction saddle 5 is connected to the bridge), the correction saddle 5 can swing at a certain angle, and the swing angle is less than or equal to 5°; the above-mentioned setting method can make the lifting plane and the lifting piston 4 fit tightly during lifting.

[0044] Specifically, the mounting surface is a spherical surface structure in a concave state for mounting the deviation-correcting saddle 5 , and due to the above-mentioned arrangement, the structure of the jacking system is further reduced.

[0045] Furthermore, a friction-reducing slide plate 8 is provided between the slide shoe 2 and the base 7; the jacking system slides on the friction-reducing slide plate 8 on the base 7 under the pushing action of the translation system, wherein the amount of the sliding movement is determined by the deviation correction value set by the pushing jack 10. Due to the setting of the friction-reducing slide plate 8, the maximum friction coefficient between the base 7 and the slide shoe 2 is only 0.05, so that the horizontal thrust is also very small.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] The construction steps of this embodiment are as follows:

[0052] The present embodiment is placed on the bridge pier, wherein the base 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 base 7 and the shell 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 base 7. Since the anti-friction sliding plate 8 is installed between the bottom of the sliding shoe 2 and the base 7, the friction coefficient between the sliding shoe 2 and the base 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 horizontal adjustment is required again, the housing 1 is rotated horizontally, and the push jack 10 installed on the housing 1 is also rotated horizontally accordingly, and then rotated to the direction required for horizontal correction and the construction can be adjusted again.

[0053] The jacking system in the present application is embedded in the accommodation space of the translation system, with a compact structure, and the external dimensions of the deviation correction and adjustment device under the same tonnage are smaller, which meets the requirements of installation and construction in a narrow space; the deviation correction in 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 deviation correction in 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 synchronous horizontal displacement of the bridge superstructure. Among them, there is a friction-reducing slide between the sliding shoe and the base, so that a very small jacking force can push the sliding shoe, and the swinging friction-reducing ring arranged between the base and the shell allows the horizontal deviation correction direction to rotate 360°, and the jacking direction can be adjusted at any time only manually. Therefore, the present application has a good market application prospect.

[0054] 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 deviation correction device, characterized in that: include: A translation system having a base, a housing, a swing anti-friction ring and a push jack; The swing anti-friction ring is arranged between the base and the shell, the shell can rotate circumferentially relative to the base, and the base and the shell form a containing space; and a lifting system, which is embedded in the accommodation space and slidably connected to the base; The piston end of the jacking jack passes through the housing and extends into the interior of the housing. Under the pushing action of the jacking jack, the jacking system slides relative to the base. The swing anti-friction ring is installed between the base and the housing by screws. The jacking system comprises: a sliding shoe slidably connected to the base; A lifting piston, which is embedded in the sliding shoe; An oil inlet cylinder is arranged between the bottom of the lifting piston and the sliding shoe, the oil inlet cylinder is connected to a lifting oil inlet passage that runs through the sliding shoe, and a lifting oil inlet port is also arranged on the lifting oil inlet passage; and an oil return cylinder formed in an annular space between the outer side of the lifting piston and the sliding shoe, the oil return cylinder being connected to a lifting oil return passage penetrating the sliding shoe, and a lifting oil return port being further provided on the lifting oil return passage. The upper surface of the lifting piston is also provided with a mounting surface, and the mounting surface is connected to the fixed end of the deviation-correcting saddle by screws, and the free end of the deviation-correcting saddle is suspended.

2. The multi-dimensional bridge correction device according to claim 1 is characterized in that: The sliding shoe is a barrel-shaped structure, and includes an upper barrel-shaped structure and a bottom supporting structure smoothly connected to the upper barrel-shaped structure, wherein the outer diameter of the bottom supporting structure is greater than or equal to the outer diameter of the upper barrel-shaped structure.

3. The multi-dimensional bridge correction device according to claim 1 is characterized in that: The swing angle of the deviation-correcting saddle is less than or equal to 5°.

4. The multi-dimensional bridge correction device according to claim 1 is characterized in that: The mounting surface is a spherical surface structure in a concave state.

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

6. The multi-dimensional bridge correction device according to claim 1 or 4, characterized in that: A friction-reducing slide plate is also provided between the sliding shoe and the base.

7. The multi-dimensional bridge correction device according to claim 1 or 4, characterized in that: The jacking system and the translation system are both connected to a computer via a PLC hydraulic synchronous control system.

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