Intelligent tensioning integrated trolley lifting platform

Abstract

The utility model belongs to the technical field of box girder tensioning, and particularly relates to an intelligent tensioning integrated trolley lifting platform which comprises a lifting platform and an axial moving frame, a transverse moving assembly is arranged on the lifting platform, the transverse moving assembly comprises fixing frames and threaded rods, the two fixing frames are installed on the two sides of the lifting platform, and the threaded rods are installed on the two sides of the lifting platform. The threaded rod is rotationally connected to the fixing frame, the threaded rod is in threaded connection with a moving table, the moving table is arranged on the lifting table in a sliding mode, and the threaded rod is driven by a motor; the axial moving frame is installed on the moving table, a tensioning jack is arranged on the axial moving frame in a sliding mode, and the tensioning jack is pushed through a driving mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of box girder tensioning technology, specifically relating to an intelligent tensioning integrated trolley lifting platform. Background Technology

[0002] In modern bridges and large-scale building structures, prestressed concrete box girders play a crucial role, as their load-bearing capacity and durability directly affect the safety and service life of the entire structure. Box girder tensioning is the core step in prestressed construction technology. This process involves applying prestress to the prestressing tendons to ensure that the box girder maintains its intended geometric shape and mechanical properties under long-term stress. Prestressing tendons, typically composed of high-strength steel strands or steel bar bundles, effectively improve the box girder's bending and shear resistance by applying initial tension, reducing crack formation and thus enhancing the overall stability and durability of the structure.

[0003] The specific tensioning method involves first setting up a tensioning platform, placing jacks on the platform, and then using anchors to fix the prestressing tendons at both ends. The jacks are connected to the anchors of the prestressing tendons. However, the jacks need to be manually hoisted from the tensioning platform to the tensioning slot and aligned with the anchors. The whole process is time-consuming and labor-intensive, and the workers are working at height, which is dangerous. The long tensioning process leads to extended construction time and increased project costs. Utility Model Content

[0004] In view of the problems mentioned in the background art above, this utility model provides an intelligent tensioning integrated trolley lifting platform.

[0005] The technical solution adopted by this utility model is as follows: An intelligent tensioning integrated trolley lifting platform includes a lifting platform and an axial moving frame. The lifting platform is provided with a transverse moving component, which includes a fixed frame and a threaded rod. Two fixed frames are installed on both sides of the lifting platform. The threaded rod is rotatably connected to the fixed frame, and a moving platform is threadedly connected to the threaded rod. The moving platform is slidably mounted on the lifting platform, and the threaded rod is driven by a motor. The axial moving frame is installed on the moving platform, and a tensioning jack is slidably mounted on the axial moving frame. The tensioning jack is pushed by a drive mechanism.

[0006] Furthermore, the fixed frame is provided with at least one sliding rod, which passes through the movable platform and is slidably connected to it.

[0007] Furthermore, the axial moving frame includes two mounting blocks arranged opposite each other, and a protective cover is fixedly installed on the outside of the tensioning jack. The protective cover is slidably connected to the two mounting blocks respectively.

[0008] Furthermore, the mounting block has a sliding groove, and the protective cover has two sliders that match the sliding groove.

[0009] Furthermore, the outer peripheral surface of the protective cover is tangent to the top surface of the moving platform.

[0010] Furthermore, the mounting block is triangular in shape.

[0011] Furthermore, the drive mechanism includes a mounting base, which is disposed on a movable platform. A hydraulic cylinder is mounted on the mounting base, and the output shaft of the hydraulic cylinder is connected to the bottom of the protective cover.

[0012] The beneficial effects of this utility model are:

[0013] The lifting platform enables height adjustment of the tensioning jack, while the lateral movement component and axial movement frame enable horizontal position adjustment of the tensioning jack. Through three-dimensional adjustment, the movement of the tensioning jack is automatically aligned with the anchor, preventing workers from entering dangerous areas and effectively ensuring on-site construction safety. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2 This is an exploded view of the protective cover and mounting block of this utility model;

[0017] The attached diagram is labeled as follows:

[0018] 1. Lifting platform; 2. Fixed frame; 21. Threaded rod; 22. Moving platform; 23. Sliding rod; 3. Tensioning jack; 4. Mounting block; 41. Slide groove; 5. Protective cover; 51. Sliding block; 6. Mounting seat; 61. Hydraulic cylinder. Detailed Implementation

[0019] like Figures 1-2 As shown, an intelligent tensioning integrated trolley lifting platform functions as described in publication CN117601253A. In this embodiment, the lifting platform includes a lifting platform 1 and an axial moving frame. The lifting platform 1 has a transverse moving component on its surface, which includes a fixed frame 2 and a threaded rod 21. Two fixed frames 2 are installed on both sides of the lifting platform 1. The threaded rod 21 is rotatably connected to the fixed frame 2, and a moving platform 22 is threadedly connected to the threaded rod 21. The moving platform 22 is slidably mounted on the lifting platform 1, and the threaded rod 21 is driven by a motor. The axial moving frame is mounted on the moving platform 22, and a tensioning jack 3 is slidably mounted on the axial moving frame. The tensioning jack 3 is pushed by a drive mechanism.

[0020] By adopting the above technical solution, the height of the tension jack 3 can be adjusted by setting up the lifting platform 1, and the horizontal position of the tension jack 3 can be adjusted by the horizontal moving component and the axial moving frame. Through three-dimensional adjustment, the movement of the tension jack 3 and its alignment with the anchor can be automatically realized, avoiding workers from entering the dangerous area and effectively ensuring the safety of on-site construction.

[0021] As a preferred embodiment, the fixed frame 2 is provided with at least one sliding rod 23, which passes through and is slidably connected to the movable platform 22. The sliding rod 23 ensures that the movable platform 22 moves linearly along the axis of the sliding rod 23, thus ensuring lateral movement stability.

[0022] As a preferred embodiment, the axial moving frame includes two oppositely arranged mounting blocks 4, and a protective cover 5 is fixedly installed on the outside of the tensioning jack 3. The protective cover 5 is slidably connected to the two mounting blocks 4 respectively. A sliding groove 41 is opened in the mounting block 4, and two sliders 51 matching the sliding groove 41 are opened on the protective cover 5. The outer peripheral surface of the protective cover 5 is tangent to the top surface of the moving platform 22.

[0023] The protective cover 5 is supported by three points simultaneously by the slider 51 and the moving table 22, resulting in a more stable support effect and ensuring the stable movement of the tensioning jack 3.

[0024] As a preferred embodiment, the mounting block 4 is triangular in shape. The triangular structure provides greater stability and achieves a better support effect.

[0025] As a preferred embodiment, the drive mechanism includes a mounting base 6, which is mounted on a moving platform 22. A hydraulic cylinder 61 is mounted on the mounting base 6, and the output shaft of the hydraulic cylinder 61 is connected to the bottom of the protective cover 5. The hydraulic cylinder 61 enables stable vertical movement of the tensioning jack 3, which is simple to operate and provides stable movement.

[0026] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An intelligent tensioning integrated trolley lifting platform, characterized in that: include A lifting platform (1) is provided with a horizontal moving component on its platform surface. The horizontal moving component includes a fixed frame (2) and a threaded rod (21). Two fixed frames (2) are installed on both sides of the platform surface of the lifting platform (1). The threaded rod (21) is rotatably connected to the fixed frame (2). A moving platform (22) is threadedly connected to the threaded rod (21). The moving platform (22) is slidably disposed on the lifting platform (1). The threaded rod (21) is driven by a motor. The fixed frame (2) is provided with at least one sliding rod (23), which passes through the movable platform (22) and is slidably connected to it; An axial moving frame is mounted on the moving platform (22). A tensioning jack (3) is slidably mounted on the axial moving frame and is driven by a driving mechanism. The axial moving frame includes two oppositely arranged mounting blocks (4). A protective cover (5) is fixedly mounted on the outside of the tensioning jack (3). The protective cover (5) is slidably connected to the two mounting blocks (4) respectively, and the outer peripheral surface of the protective cover (5) is tangent to the top surface of the moving platform (22). The drive mechanism includes a mounting base (6), which is mounted on a moving platform (22). A hydraulic cylinder (61) is mounted on the mounting base (6), and the output shaft of the hydraulic cylinder (61) is connected to the bottom of the protective cover (5).

2. The intelligent tensioning integrated trolley lifting platform according to claim 1, characterized in that: The mounting block (4) has a groove (41) inside, and the protective cover (5) has two sliders (51) that match the groove (41).

3. The intelligent tensioning integrated trolley lifting platform according to claim 1, characterized in that: The mounting block (4) is triangular in shape.

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