Bridge pushing deviation rectifying device

Abstract

The utility model relates to the technical field of bridge construction, in particular to a bridge pushing deviation rectifying device which comprises a base arranged on a bridge fulcrum, a supporting frame used for supporting a beam body is arranged on the base, a bottom plate is arranged at the bottom of the supporting frame, and a plurality of jacking jacks used for vertically pushing the beam body are evenly arranged on the bottom plate. The moving mechanism comprises a movable block arranged on the bottom surface of the bottom plate and a guide rail seat matched with the movable block, arranged on the base and used for pushing a beam body to translate; and the deviation rectifying mechanism comprises two side plates which are arranged on the base and are separately and symmetrically arranged on the two sides of the supporting frame, and a mounting plate which is arranged on the vertical surfaces of the side plates in a slotting and sliding manner and moves along with the supporting frame. Under the displacement limitation of the first hydraulic cylinder on one side and the gradual pressurization of the second hydraulic cylinder on the other side, deviation generated by pushing on the supporting frame can be rectified, uneven stress caused by beam body deviation is avoided, and the pushing construction effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a bridge jacking and correction device. Background Technology

[0002] Bridges generally consist of a superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the beam structure, is the main structure that crosses obstacles. The substructure includes abutments, piers, and foundations. Supports are force transmission devices installed at the points where the beam structure supports the piers or abutments. Ancillary structures refer to abutment approach slabs, tapered slopes, revetments, and diversion works, etc.

[0003] Currently, most bridge construction uses the incremental launching method. However, during the construction process, the vertical launching force can cause the bridge beam structure to shift, resulting in uneven stress on the bridge, affecting its service life, and reducing the effectiveness of the incremental launching construction.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide a bridge jacking and correction device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a bridge jacking and correction device, including a base set on the bridge support, a support frame for supporting the beam on the base, a bottom plate at the bottom of the support frame, and a plurality of jacking jacks for vertically jacking the beam evenly arranged on the bottom plate.

[0007] The moving mechanism includes a movable block disposed on the bottom surface of the base plate and a guide rail seat adapted to the movable block and disposed on the base for pushing the beam to move horizontally;

[0008] The correction mechanism includes two side plates disposed on the base and symmetrically arranged on both sides of the support frame, and a mounting plate that is slotted and slidably disposed on the side plate facade and moves with the support frame.

[0009] Furthermore, the movable block is equipped with a first lead screw driven by a motor.

[0010] Furthermore, a first hydraulic cylinder for displacement restriction is horizontally arranged on one side of the mounting plate, and a second hydraulic cylinder for providing horizontal support is arranged on the other side of the mounting plate.

[0011] The fixed end of the second hydraulic cylinder is provided with several springs connected to the corresponding mounting plate.

[0012] Furthermore, a second lead screw is correspondingly provided on the mounting plate for driving the mounting plate to move linearly on the side plate.

[0013] Furthermore, the end of the beam on the base in the translational direction is provided with a transmission mechanism that is connected to the first lead screw and the second lead screws on both sides.

[0014] The transmission mechanism includes a first sprocket and a second sprocket, which are respectively disposed on the second lead screw and the first lead screw. The second sprocket is provided with a transmission chain that is adapted to drive the first sprocket on both sides.

[0015] Compared with the prior art, this utility model has the following beneficial effects: Through the setting of the correction mechanism, this utility model can correct the deviation caused by the jacking on the support frame under the displacement restriction of the first hydraulic cylinder on one side and the gradual pressurization of the second hydraulic cylinder on the other side, so as to avoid uneven force caused by beam deviation, increase the service life of the beam, and improve the jacking construction effect; and through the setting of the transmission mechanism, under the power of the motor, the beam supported on the support frame is moved while the correction mechanism moves accordingly, which helps to improve the correction effect of the jacking translation. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a perspective view of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a side view of the overall planar structure of an embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional structural view of an embodiment of the present invention from another perspective.

[0020] In the diagram: 1. Base; 2. Support frame; 21. Base plate; 22. Lifting jack; 3. Moving mechanism; 31. Movable block; 32. Guide rail seat; 33. First lead screw; 331. Motor; 4. Correction mechanism; 41. Side plate; 42. Mounting plate; 43. First hydraulic cylinder; 44. Second hydraulic cylinder; 441. Spring; 45. Second lead screw; 5. Transmission mechanism; 51. Sprocket 1; 52. Sprocket 2; 53. Transmission chain. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] like Figure 1-3 As shown, the bridge jacking and correction device of this utility model includes a base 1 set on the bridge support, a support frame 2 for supporting the beam body is set on the base 1, a bottom plate 21 is set at the bottom of the support frame 2, and a plurality of jacking jacks 22 for vertically jacking the beam body are evenly arranged on the bottom plate 21.

[0025] The moving mechanism 3 includes a movable block 31 disposed on the bottom surface of the base plate 21 and a guide rail seat 32 adapted to the movable block 31 and disposed on the base 1 for pushing the beam to move.

[0026] The correction mechanism 4 includes two side plates 41 disposed on the base 1 and symmetrically disposed on both sides of the support frame 2, and a mounting plate 42 that is slotted and slidably disposed on the side plate 41 and moves with the support frame 2.

[0027] In specific implementation, by using the support frame 2 that supports the beam to be pushed upward by the lifting jack 22 installed on the base 1, and the movable block 31 and guide rail seat 32 installed on the base 1 for pushing the beam to move horizontally and adapted to the limiting installation, the beam supported on the support frame 2 can be gradually pressed and vertically pushed by the lifting jack 22 that is evenly bolted to the bottom plate 21 on the base 1. At the same time, under the limiting installation of the movable block 31 that is linearly guided and welded to the bottom surface of the bottom plate 21 in the guide rail seat 32, the horizontal movement of the beam after being pushed is realized.

[0028] Furthermore, the side plates 41 welded separately and symmetrically on the base 1, and the mounting plates 42 that are slotted and slidably installed on the side plates 41, can not only correct the beam during the jacking process, but also move with the support frame 2, thus playing a further corrective role during translation.

[0029] It should be noted that the base plate 21 is bolted to the lifting jack 22, and the base plate 21 is separately installed from the support frame 2. Furthermore, the lower surface of the base plate 21 is welded to the movable block 31.

[0030] In one embodiment, the movable block 31 is provided with a first lead screw 33 driven by a motor 331. This design allows the first lead screw 33, connected to a coupling, to be activated by machining a through-grooved internal thread on the movable block 31. The resulting power drives the first lead screw 33 to rotate, causing the movable block 31, which is fitted to the first lead screw 33, to move the beam supported on the support frame 2 under the constraint of the guide rail seat 32, thereby moving the beam to a set position.

[0031] In one embodiment, a first hydraulic cylinder 43 for displacement restriction is horizontally disposed on one side of the mounting plate 42, and a second hydraulic cylinder 44 for providing horizontal support is disposed on the other side of the mounting plate 42.

[0032] The fixed end of the second hydraulic cylinder 44 is provided with several springs 441 connected to the corresponding mounting plate 42. This design, with the first hydraulic cylinder 43 horizontally bolted to one side of the mounting plate 42 and the second hydraulic cylinder 44 mounted on the opposite side of the mounting plate 42, and several evenly distributed springs 441 welded to the fixed end of the second hydraulic cylinder 44 and the corresponding end face of the mounting plate 42, can limit the displacement of the beam supported on the support frame 2 under the horizontal support of the first hydraulic cylinder 43. Simultaneously, by gradually pressurizing the second hydraulic cylinder 44, it corrects the deviation generated during the pushing process on the support frame 2. The springs 441 welded to the end of the second hydraulic cylinder 44 can provide a reverse supporting restoring force, limiting the maximum displacement of the structure and preventing it from exceeding a predetermined range.

[0033] In one embodiment, a second lead screw 45 is correspondingly provided on the mounting plate 42 for driving the mounting plate 42 to move linearly on the side plate 41. This design allows the second lead screw 45, installed on the mounting plate 42 along the beam translation direction, to rotate when a force is applied to it, causing the mounting plate 42, which is adapted to rotate on the second lead screw 45, to move linearly within the slot on the side plate 41. This achieves the effect of the correction mechanism 4 following the movement of the support frame 2.

[0034] In one embodiment, the end of the beam on the base 1 in the translational direction is provided with a transmission mechanism 5 that is connected to the first lead screw 33 and the second lead screws 45 on both sides;

[0035] The transmission mechanism 5 includes a first sprocket 51 and a second sprocket 52 correspondingly mounted on the second lead screw 45 and the first lead screw 33. The second sprocket 52 is equipped with a transmission chain 53 adapted to drive the first sprocket 51 on both sides. This design, by correspondingly and fixedly mounting the first sprocket 51 and the second sprocket 52 at the ends of the second lead screw 45 and the first lead screw 33 along the beam translation direction, and by the transmission chain 53 meshing with the first sprocket 51 and the second sprocket 52, allows the rotational force generated by the first lead screw 33 driving the second sprocket 52 to be transmitted to the first sprocket 51 on both sides through the meshing transmission chain 53. This, in turn, drives the second lead screw 45 mounted on the end faces of the first sprocket 51 to rotate, enabling the mounting plate 42 and the structure on the mounting plate 42 to move synchronously with the support frame 2, thus improving the correction effect of the jacking and translation.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A bridge jacking and correction device, comprising a base (1) installed at a bridge support, wherein a support frame (2) for supporting the beam is provided on the base (1), characterized in that: The bottom of the support frame (2) is provided with a base plate (21), and multiple lifting jacks (22) for vertically pushing the beam are evenly provided on the base plate (21); The moving mechanism (3) includes a movable block (31) disposed on the bottom surface of the base plate (21) and a guide rail seat (32) adapted to the movable block (31) and disposed on the base (1) for pushing the beam to move. The correction mechanism (4) includes two side plates (41) disposed on the base (1) and symmetrically disposed on both sides of the support frame (2), and a mounting plate (42) that is slotted and slidably disposed on the side plate (41) and moves with the support frame (2).

2. The bridge jacking and correction device according to claim 1, characterized in that: The movable block (31) is provided with a first lead screw (33) driven by a motor (331).

3. The bridge jacking and correction device according to claim 2, characterized in that: A first hydraulic cylinder (43) for displacement restriction is horizontally arranged on one side of the mounting plate (42), and a second hydraulic cylinder (44) for providing horizontal support is arranged on the other side of the mounting plate (42); The second hydraulic cylinder (44) has several springs (441) fixed at its upper end and connected to the corresponding mounting plate (42).

4. The bridge jacking and correction device according to claim 3, characterized in that: The mounting plate (42) is provided with a second lead screw (45) for driving the mounting plate (42) to move linearly on the side plate (41).

5. The bridge jacking and correction device according to claim 4, characterized in that: The base (1) is provided with a transmission mechanism (5) at the end of the beam in the translation direction, which is connected to the first lead screw (33) and the second lead screws (45) on both sides; The transmission mechanism (5) includes a first sprocket (51) and a second sprocket (52) correspondingly disposed on the second lead screw (45) and the first lead screw (33), and the second sprocket (52) is provided with a transmission chain (53) adapted to drive the first sprocket (51) on both sides.

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