Incremental launching construction device for underpass intercity railway bridge

Abstract

The utility model discloses a pushing construction device of an underpass intercity railway bridge, which comprises a base, the upper end of the base is fixedly connected with a sliding rail, the inner side of the sliding rail is slidably connected with a sliding seat, one side of the upper end of the base, which is close to the sliding rail, is fixedly connected with a mounting seat, and the inner side of the mounting seat is provided with a longitudinal pushing oil cylinder; and a transverse deviation rectifying oil cylinder is mounted in the sliding seat. According to the pushing construction device of the underpass intercity railway bridge, the vertical lifting oil cylinder is started to push the jack seat upwards so as to jack up the steel beam upwards, then the longitudinal thrust oil cylinder is started to push the sliding seat to move, and then the sliding seat drives the vertical lifting oil cylinder to move so as to push the steel beam upwards. And then the transverse deviation rectifying oil cylinder is started to push the vertical lifting oil cylinder, so that the steel beam is finely adjusted, the purpose of conveniently moving the steel beam in all directions is achieved, and the range of pushing the steel beam is enlarged.

Description

Technical Field

[0001] This utility model relates to the field of intercity railway bridge construction technology, and in particular to a jacking construction device for underpass intercity railway bridges. Background Technology

[0002] Bridge jacking construction technology refers to the construction method in which the beam body is longitudinally jacked by jacking equipment after it is poured or assembled in sections at the bridgehead, so that the beam body is in place through the temporary sliding bearing surface on the top of each pier. Therefore, jacking construction devices for underpass intercity railway bridges are used extensively in the bridge construction process.

[0003] Traditional jacking construction devices for underpasses of intercity railway bridges have some drawbacks. During construction, the bridge needs to be continuously jacked up and pushed forward, and constantly placed on temporary pad structures. Because it is constantly being jacked up and pushed forward, and its movement trajectory can only be up and down, forward and backward, the jacking range is limited, and it cannot be jacked flexibly and in all directions. Utility Model Content

[0004] The main purpose of this utility model is to provide a jacking construction device for underpass intercity railway bridges, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A jacking construction device for underpassing an intercity railway bridge includes a base, a slide rail fixedly connected to the upper end of the base, a slide block slidably connected to the inner side of the slide rail, an mounting seat fixedly connected to the upper end of the base near the slide rail, a longitudinal propulsion cylinder mounted inside the mounting seat, a transverse correction cylinder mounted inside the slide block, a vertical lifting cylinder movably mounted inside the slide block, and a jack seat mounted on the upper telescopic end of the vertical lifting cylinder.

[0007] Preferably, a displacement sensor is installed at one end of the vertical lifting cylinder, and there are two sets of slide rails.

[0008] Preferably, one end of the longitudinal propulsion cylinder is mounted at one end of the slide block, and the rear end of the lateral correction cylinder is mounted at the front end of the vertical lifting cylinder.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] By activating the vertical lifting cylinder, the jack seat is pushed upward, thus lifting the steel beam. Then, the longitudinal propulsion cylinder is activated, which moves the slide block, thereby moving the vertical lifting cylinder and the steel beam. Finally, the lateral correction cylinder is activated, which pushes the vertical lifting cylinder to fine-tune the steel beam. This allows for easy omnidirectional movement of the steel beam, thereby increasing the range of jacking the steel beam. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a jacking construction device for an intercity railway bridge according to the present invention. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the overall structure of a jacking construction device for an intercity railway bridge according to the present invention. Figure 2 ;

[0013] Figure 3 This is a schematic diagram of the overall structure of a jacking construction device for an intercity railway bridge according to the present invention. Figure 3 ;

[0014] Figure 4 This is a schematic diagram of the overall structure of a jacking construction device for an intercity railway bridge according to the present invention. Figure 4 .

[0015] In the diagram: 1. Base; 2. Slide rail; 3. Slide seat; 4. Mounting seat; 5. Longitudinal propulsion cylinder; 6. Lateral correction cylinder; 7. Vertical lifting cylinder; 8. Displacement sensor; 9. Jack base. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figure 1-4 As shown, a jacking construction device for passing under an intercity railway bridge includes a base 1, a slide rail 2 fixedly connected to the upper end of the base 1, a slide block 3 slidably connected to the inner side of the slide rail 2, an mounting seat 4 fixedly connected to the upper end of the base 1 near the slide rail 2, a longitudinal pushing cylinder 5 installed inside the mounting seat 4, a transverse correction cylinder 6 installed inside the slide block 3, a vertical lifting cylinder 7 movably installed inside the slide block 3, and a jack seat 9 installed at the upper telescopic end of the vertical lifting cylinder 7.

[0018] In this embodiment, a displacement sensor 8 is installed at one end of the vertical lifting cylinder 7, there are two sets of slide rails 2, one end of the longitudinal propulsion cylinder 5 is installed at one end of the slide block 3, and the rear end of the transverse correction cylinder 6 is installed at the front end of the vertical lifting cylinder 7.

[0019] Specifically, the base 1 is placed under the steel beam, then the vertical lifting cylinder 7 is activated, causing it to push the jack seat 9 upwards, simultaneously lifting the steel beam. Next, the pad is placed under the steel beam, and the longitudinal pushing cylinder 5 is activated, causing it to push the slide block 3 along the slide rail 2, thus moving the steel beam. The displacement sensor 8 detects the displacement amplitude. If an error occurs in the displacement amplitude, the lateral correction cylinder 6 is activated, causing it to push the vertical lifting cylinder 7 to move, thereby... The position of the steel beam is finely adjusted by activating the vertical lifting cylinder 7, which pushes the jack seat 9 upward, thus lifting the steel beam. Then, the longitudinal pushing cylinder 5 is activated, which pushes the slide 3 to move, thereby moving the vertical lifting cylinder 7 and the steel beam. Finally, the lateral correction cylinder 6 is activated, which pushes the vertical lifting cylinder 7 to finely adjust the steel beam. This allows for easy omnidirectional movement of the steel beam, thereby increasing the range of the jacking beam.

[0020] Working principle:

[0021] In use, place the base 1 under the steel beam, then activate the vertical lifting cylinder 7 to push the jack seat 9 upwards until it contacts the steel beam, simultaneously lifting the beam. Next, place the pad under the steel beam and activate the longitudinal pushing cylinder 5 to push the slide 3 along the slide rail 2, moving the steel beam. The displacement sensor 8 detects the displacement amplitude. If an error occurs, activate the lateral correction cylinder 6, which pushes the vertical lifting cylinder 7 to move, fine-tuning the steel beam's position. Then, activate the vertical lifting cylinder 7 to retract downwards, moving the steel beam downwards until it contacts the pad. At this point, the jack seat 9 is disengaged from the steel beam, and then the longitudinal propulsion cylinder 5 is activated to retract inward, causing the vertical lifting cylinder 7 to move in the opposite direction. This process is repeated to complete the jacking of the steel beam. By activating the vertical lifting cylinder 7, the jack seat 9 is pushed upward, thus lifting the steel beam. Then, the longitudinal propulsion cylinder 5 is activated, pushing the slide block 3 to move, which in turn causes the slide block 3 to move the vertical lifting cylinder 7, thus moving the steel beam. Finally, the lateral correction cylinder 6 is activated, pushing the vertical lifting cylinder 7 to make fine adjustments to the steel beam. This allows for easy omnidirectional movement of the steel beam, thereby increasing the range of jacking.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A jacking construction device for an intercity railway bridge, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a slide rail (2), and a slide seat (3) is slidably connected to the inner side of the slide rail (2). The upper end of the base (1) is fixedly connected to a mounting seat (4) near the slide rail (2). A longitudinal propulsion cylinder (5) is installed on the inner side of the mounting seat (4). A transverse correction cylinder (6) is installed inside the slide seat (3). A vertical lifting cylinder (7) is movably installed on the inner side of the slide seat (3). A jack seat (9) is installed at the upper telescopic end of the vertical lifting cylinder (7).

2. The jacking construction device for an intercity railway bridge according to claim 1, characterized in that: A displacement sensor (8) is installed at one end of the vertical lifting cylinder (7), and there are two sets of slide rails (2).

3. The jacking construction device for an intercity railway bridge according to claim 2, characterized in that: One end of the longitudinal propulsion cylinder (5) is installed at one end of the slide block (3), and the rear end of the transverse correction cylinder (6) is installed at the front end of the vertical lifting cylinder (7).

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