Guide beam upper pier structure for wheel set type box beam pushing system

Abstract

The utility model relates to the technical field of bridge construction, and discloses a guide beam upsetting structure for a wheel set type box beam pushing system, which comprises a pushing platform and a guide beam to be upset, a driving wheel set is arranged at the top of the pushing platform, and a jack counterforce beam is arranged at the top of one end of the guide beam to be upset. A hydraulic jack is installed at the bottom of the jack counterforce beam, a movable bottom beam is installed at one end of the hydraulic jack, the combined design of the hydraulic jack and the movable bottom beam is adopted, and when the guide beam is piled, the movable bottom beam is jacked through the hydraulic jack, so that the guide beam can be stably lifted. According to the design, the operation process of pier loading of the guide beam is simplified, and compared with traditional manual operation or mechanical assistance, the construction difficulty is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a guide beam upper pier structure for a wheel-type box beam jacking system. Background Art

[0002] In modern bridge construction, box girders are widely used due to their structural stability and strength. However, due to their large size and heavy weight, they must be precisely pushed from the prefabrication site to the designated location during installation, making jacking technology a key construction method.

[0003] The guide beam is an auxiliary beam that plays a guiding and supporting role in the jacking construction of the box girder. During the jacking construction, the box girder is gradually pushed forward by equipment such as jacks. The role of the guide beam is to provide temporary support in the front to ensure stability and smoothness during the jacking process. The guide beam is usually located at the front end of the box girder, carrying the span between the piers where the box girder has not yet been pushed; and when the box girder is jacked, the box girder will gradually pass through multiple piers and be supported on the piers in turn. Due to the deadweight of the box girder and other reasons, the guide beam at one end of the box girder is often staggered with the top of the pier. The guide beam at one end of the box girder often needs to rely on external force to move to the pier to complete the pier. Therefore, there is an urgent need for a guide beam pier structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a guide beam upper pier structure for a wheel-type box beam jacking system.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A guide beam pier structure for a wheel-type box beam jacking system includes a jacking platform and a guide beam to be placed on the pier. A driving wheel set is provided on the top of the jacking platform, a jack reaction beam is provided on the top of one end of the guide beam to be placed on the pier, a hydraulic jack is installed at the bottom of the jack reaction beam, and a movable bottom beam is installed at one end of the hydraulic jack.

[0007] As a further solution of the present invention: the movable bottom beam is arranged horizontally.

[0008] As a further solution of the present invention: an anti-skid component is provided at one end of the driving wheel group, and a driving wheel is movably provided inside the driving wheel group.

[0009] The beneficial effects of the utility model are:

[0010] 1. Simplified Construction Operation: This new system utilizes a combination of hydraulic jacks and a movable bottom beam. When the guide beam is placed on the pier, the hydraulic jacks propel the movable bottom beam, allowing the guide beam to be lifted smoothly. This design simplifies the guide beam placement process, reduces construction difficulty, and improves efficiency compared to traditional manual or mechanical operations.

[0011] 2. Improved Safety and Stability: The gradual pushing action of the hydraulic jack ensures smooth movement of the guide beam during pier placement, avoiding sudden force changes or displacement, reducing the risk of guide beam imbalance or shifting during construction, and ensuring the safety of the jacking operation. Furthermore, the pin-anchored design of the guide beam and the movable bottom beam further ensures the stability of the guide beam during pier placement.

[0012] 3. Detachable design for easy reuse: The jack reaction beam, hydraulic jack, and movable bottom beam can be easily disassembled after the guide beam is installed. The components are simple and lightweight, making them easy to carry and reuse multiple times. This not only reduces construction costs but also improves equipment utilization.

[0013] 4. Smooth Guide Beam Movement: The active wheel assembly, combined with an anti-slip design, ensures smooth and precise horizontal movement of the guide beam and movable base beam after anchoring, avoiding construction problems caused by insufficient friction or wheel slippage. This design increases the adaptability of the device, enabling it to cope with a variety of construction environments.

[0014] 5. Precisely control the height of the guide beam: The hydraulic jack accurately controls the height of the guide beam, ensuring that it is flush with the bottom of the movable bottom beam, thereby ensuring smooth positioning of the guide beam on the pier. This precise height adjustment avoids impact between the guide beam and the pier, helping to extend the service life of the equipment.

[0015] 6. Improved Work Efficiency: Automating and mechanizing the guide beam placement process significantly accelerates jacking construction compared to traditional manual operations or complex mechanical assistance. This device reduces manpower input, shortens construction cycles, and improves overall construction efficiency.

[0016] 7. Compact structure and strong adaptability: The structure is compact and easy to operate. It is suitable for different guide beam types in various bridge pushing projects. It has good adaptability and can effectively play a role in narrow construction environments.

[0017] The wheel-type box girder jacking system has the following advantages: fast jacking speed; can solve the problem of different jacking distances inside and outside the flat curved steel box girder; the required construction device components are miniaturized, easy to transport, and quick to assemble; the jacking device cost is low; there is no need to adjust the steel box girder structure or locally strengthen it, so the project cost is low; the jacking device can operate in both the front and rear directions, and has good flexibility; the entire set of equipment adopts an advanced electro-hydraulic proportional synchronous control system, which can ensure the synchronous movement of the steel box girder during the jacking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of the guide beam upper pier structure for the wheel-type box beam jacking system proposed by the present invention before the guide beam is placed on the pier when in use;

[0019] Figure 2 This is a structural schematic diagram of the guide beam during the pier placement process when the guide beam is used in the wheel-type box beam jacking system proposed by the present invention;

[0020] Figure 3 This is a structural schematic diagram of a guide beam mounted on a pier structure for a wheel-type box beam jacking system proposed in the present invention;

[0021] Figure 4 The utility model provides a schematic structural diagram of the driving wheel group and the anti-skid components in the guide beam upper pier structure for the wheel group type box beam jacking system.

[0022] In the figure: 1- pushing platform, 2- guide beam, 3- jack reaction beam, 4- hydraulic jack, 5- movable bottom beam, 6- driving wheel group, 7- anti-skid component, 8- driving wheel. DETAILED DESCRIPTION

[0023] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0024] The following describes in detail embodiments of the present invention, examples of which 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 only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] Reference Figure 1-4 A guide beam pier structure for a wheel-type box girder jacking system includes a jacking platform 1 and a guide beam 2 to be placed on the pier. The top of the jacking platform 1 is provided with a driving wheel group 6, and the top of one end of the guide beam 2 to be placed on the pier is provided with a jack reaction beam 3. A hydraulic jack 4 is installed at the bottom of the jack reaction beam 3, and a movable bottom beam 5 is installed at one end of the hydraulic jack 4.

[0026] As a preferred embodiment of the present invention, the movable bottom beam 5 is arranged horizontally.

[0027] As a preferred embodiment of the present utility model, an anti-slip component 7 is provided at one end of the driving wheel group 6, and a driving wheel 8 is movably provided inside the driving wheel group 6. When the driving wheel 8 rotates in the opposite direction, the anti-slip component 7 is automatically stuck between the driving wheel 8 and the guide beam 2 or the movable bottom beam 5, thereby achieving the purpose of preventing slipping.

[0028] The working principle of the present invention is as follows: when in use, after the jacking platform 1 and the driving wheel group 6 are built and set, the jack reaction beam 3, the hydraulic jack 4 and the movable bottom beam 5 are installed on the top of the end of the guide beam 2 to be put on the pier. When the end of the guide beam 2 to be put on the pier moves to one side of the driving wheel group 6, the jack reaction beam 3, the hydraulic jack 4 and the movable bottom beam 5 are all located on the top of the driving wheel group 6. The movable bottom beam 5 is pushed downward by the hydraulic jack 4 until the bottom of the movable bottom beam 5 is aligned with the driving wheel group. 6 is offset against the top, and the movable bottom beam 5 is continued to be pushed by the hydraulic jack 4, so that the jack reaction beam 3 and the guide beam 2 move upward under the action of the hydraulic jack 4 until the bottom of the guide beam 2 is flush with the bottom of the movable bottom beam 5. At this time, the guide beam 2 and the movable bottom beam 5 are anchored by the pin shaft, and then the driving wheel group 6 is started to drive the anchored guide beam 2 and the movable bottom beam 5 to move horizontally until the jack reaction beam 3 is completed on the pier, and then the jack reaction beam 3, the hydraulic jack 4 and the movable bottom beam 5 are disassembled.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide beam pier structure for a wheel-type box beam jacking system, comprising a jacking platform (1) and a guide beam (2) to be mounted on the pier, characterized in that: A driving wheel group (6) is provided on the top of the jacking platform (1), a jack reaction beam (3) is provided on the top of one end of the guide beam (2) to be mounted on the pier, a hydraulic jack (4) is installed on the bottom of the jack reaction beam (3), and a movable bottom beam (5) is installed on one end of the hydraulic jack (4).

2. The guide beam upper pier structure for the wheel-type box beam jacking system according to claim 1, characterized in that: The movable bottom beam (5) is arranged horizontally.

3. The guide beam upper pier structure for the wheel-type box beam jacking system according to claim 1, characterized in that: An anti-slip component (7) is provided at one end of the driving wheel group (6), and a driving wheel (8) is movably provided inside the driving wheel group (6).

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