Sliding trolley for bridge erection

Abstract

The utility model relates to the technical field of bridge construction equipment, in particular to a sliding trolley for bridge erection, which comprises a trolley body for transporting steel beams, the trolley body comprises a frame, a driving wheel and a driven wheel, the driving wheel and the driven wheel are arranged on the frame, and the driving wheel is driven by a driving motor to enable the trolley body to advance. The advancing direction of the trolley body is transverse, a vertical lifting structure for jacking a steel beam is arranged on the trolley body, and a longitudinal adjusting structure for longitudinally and finely adjusting the vertical lifting structure is arranged on the trolley body. The trolley integrates the functions of transportation, jacking and fine adjustment, so that the trolley can accurately control the position and height of the steel beam, and accurate placement of the steel beam is ensured.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment technology, and in particular to a sliding trolley used for bridge erection. Background Technology

[0002] Currently, the transportation and installation of steel beams are crucial aspects of bridge construction. Traditional steel beam installation equipment is typically complex in structure, inconvenient to operate, and struggles to achieve precise positioning and adjustment. Especially during bridge erection, when the steel beam is hoisted to its designated placement location, fine-tuning is often necessary to ensure accurate placement. However, existing adjustment equipment is mostly cumbersome to operate, inefficient, and offers limited adjustment precision. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes a sliding trolley for bridge erection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a sliding trolley for bridge erection, comprising a trolley body for transporting steel beams, the trolley body comprising a frame and driving wheels and driven wheels mounted on the frame, the driving wheels being driven by a drive motor to move the trolley body laterally, the trolley body being provided with a vertical lifting structure for lifting the steel beams, and the trolley body being provided with a longitudinal adjustment structure for fine-tuning the vertical lifting structure.

[0005] In a further improvement, the vertical lifting structure includes a mounting base and at least one hydraulic jack mounted on the mounting base.

[0006] As a further improvement, a PTFE plate with a thickness of 5-10mm is provided between the frame and the mounting base.

[0007] In a further improvement, the longitudinal adjustment structure includes two horizontal jacks, which are coaxially arranged on both sides of the mounting base.

[0008] In a further improvement, both the driving wheel and the driven wheel are rollers with rims on both sides, and each roller has a wear-resistant rubber layer on the inner surface between the two rims.

[0009] Further improvements include a wear-resistant rubber layer with a thickness of 5-8 mm and a Shore hardness of 70-80 HA.

[0010] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: The utility model, through its sliding trolley, integrates transportation, lifting, and fine-tuning functions, enabling the trolley to precisely control the position and height of the steel beam to ensure accurate placement. Furthermore, a PTFE plate is provided between the frame and the mounting base. Due to the excellent wear resistance and sliding performance of the PTFE plate, frictional resistance during fine-tuning of the mounting base is reduced, improving movement efficiency. The thickness of the PTFE plate is 5-10mm, ensuring both structural strength and wear resistance requirements. Furthermore, both the drive wheel and the driven wheel are rollers with flanges on both sides, increasing roller stability. The wear-resistant rubber layer further improves the wear resistance and service life of the rollers, while the elasticity of the rubber also absorbs vibration to a certain extent, improving driving smoothness. Furthermore, the wear-resistant rubber layer has a thickness of 5-8mm and a Shore hardness of 70-80HA, ensuring both wear resistance and the rigidity and service life of the rollers. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0012] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another angle;

[0013] Figure 3 This is a schematic diagram of the structure of the roller of this utility model.

[0014] icon:

[0015] 1. Frame; 21. Drive wheel; 22. Driven wheel; 23. Drive motor; 201. Wheel flange; 202. Wear-resistant rubber layer; 31. Mounting base; 32. Hydraulic jack; 4. Horizontal jack; 41. Top cover; 5. PTFE sheet. Detailed Implementation

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0017] refer to Figure 1-3This embodiment provides a sliding trolley for bridge erection, including a trolley body for transporting steel beams. The trolley body includes a frame 1 and a drive wheel 21 and a driven wheel 22 mounted on the frame 1. The drive wheel 21 is driven by a drive motor 23 to make the trolley body move on a predetermined track. The direction of movement of the trolley body is transverse. The frame 1 can be made of high-strength steel to ensure its load-bearing capacity and stability. The drive wheel 21 and the driven wheel 22 are both rollers with rims 201 on both sides. The rollers are made of high-strength alloy steel. Each roller has a wear-resistant rubber layer 202 on the inner surface between the two rims 201. The thickness of the wear-resistant rubber layer 202 is between 5-8 mm, and the Shore hardness is between 70-80 HA.

[0018] In this embodiment, the trolley body is provided with a vertical lifting structure for lifting the steel beam, and the trolley body is provided with a longitudinal adjustment structure for fine-tuning the vertical lifting structure.

[0019] The vertical lifting structure includes a mounting base 31 and a hydraulic jack 32 mounted on the mounting base 31. A PTFE plate 5 with a thickness of 5-10mm is provided between the frame 1 and the mounting base 31. The longitudinal adjustment structure includes two horizontal jacks 4, which are coaxially mounted on both sides of the mounting base 31. The top covers 41 of the two horizontal jacks 4 are in contact with the mounting surface of the mounting base 31. In this embodiment, the mounting surface of the mounting base 31 is preferably an arc-shaped surface to prevent the mounting base 31 from shifting during fine-tuning, thereby improving the accuracy and safety of fine-tuning. In practical applications, a guide structure can also be provided between the mounting base 31 and the frame 1 to prevent the mounting base 31 from shifting during fine-tuning, but the maintenance cost will also increase accordingly.

[0020] In practical applications, the hydraulic jack 32 is not limited to one in this embodiment. When multiple hydraulic jacks 32 are provided, they can be raised and lowered synchronously to achieve stable lifting of the steel beam. Precise control of the hydraulic jacks 32 ensures the stability and accuracy of the steel beam during the lifting process, providing a solid foundation for subsequent construction steps. Of course, other lifting devices capable of synchronous raising and lowering can be used instead of the hydraulic jack 32, as long as they can achieve stable lifting of the steel beam. Similarly, the horizontal jack 4 can be replaced by other fine-tuning devices capable of synchronous fine-tuning, as long as they can achieve longitudinal fine-tuning of the vertical lifting structure.

[0021] In practical applications, in order to achieve remote control and automated operation of the sliding steer trolley, a control system can be installed on the trolley. The control system includes a controller, sensors, and actuators. The sensors are used to detect the status information of the sliding steer trolley in real time, such as position, speed, and load. The controller, based on the information collected by the sensors and control commands, precisely controls the sliding steer trolley through the actuators to achieve automated operation. All parts of the control system are existing structures that can be purchased from the market and assembled and debugged by professionals.

[0022] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A sliding trolley for bridge erection, comprising a trolley body for transporting steel beams, the trolley body including a frame and drive wheels and driven wheels mounted on the frame, the drive wheels being driven by a drive motor to move the trolley body laterally, characterized in that: The trolley body is equipped with a vertical lifting structure for lifting the steel beam, and the trolley body is equipped with a longitudinal adjustment structure for fine-tuning the vertical lifting structure.

2. The sliding trolley for bridge erection according to claim 1, characterized in that: The vertical lifting structure includes a mounting base and at least one hydraulic jack mounted on the mounting base.

3. A sliding trolley for bridge erection according to claim 2, characterized in that: A PTFE plate with a thickness of 5-10 mm is provided between the frame and the mounting base.

4. A sliding trolley for bridge erection according to claim 3, characterized in that: The longitudinal adjustment structure includes two horizontal jacks, which are coaxially arranged on both sides of the mounting base.

5. A sliding trolley for bridge erection according to claim 1, characterized in that: Both the driving wheel and the driven wheel are rollers with rims on both sides, and each roller has a wear-resistant rubber layer on the inner surface between the two rims.

6. A sliding trolley for bridge erection according to claim 5, characterized in that: The wear-resistant rubber layer has a thickness of 5-8 mm and a Shore hardness of 70-80 HA.

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