Steel bridge main tower installation auxiliary mechanism

Abstract

This application discloses an auxiliary mechanism for the installation of a steel bridge main tower, specifically relating to the field of steel bridge main tower installation technology. It includes a main crossbeam, on which at least two sets of adjustable connecting components are installed at the same side, and at least one set of adjustable guide components is installed in the middle of the main crossbeam. Each set of adjustable guide components includes: a mounting frame extending obliquely upward from the main crossbeam; an upwardly oblique sliding strip is linearly mounted on the mounting frame; a connecting seat is provided at the top of the sliding strip, and a guide plate is rotatably connected to the connecting seat; a first hydraulic rod is connected to the end of the sliding strip away from the guide plate, and the extension / retraction direction of the first hydraulic rod is parallel to the sliding direction of the sliding strip; a second hydraulic rod with the same extension / retraction direction as the first hydraulic rod is mounted on the mounting frame, and the end of the second hydraulic rod away from the mounting frame is rotatably connected to the guide plate. This application eliminates the need for jacks and wedges, lowers the operational threshold, and improves the installation efficiency of the steel bridge main tower.

Description

Technical Field

[0001] This utility model belongs to the field of steel bridge main tower installation technology, specifically relating to an auxiliary mechanism for steel bridge main tower installation. Background Technology

[0002] The installation of the main steel tower is a crucial step in bridge construction, involving the precise hoisting, docking, and securing of prefabricated steel tower sections. Large floating cranes or tower cranes are typically used for segmented hoisting operations to ensure accurate connections between sections. Strict control of deviations is essential during construction to guarantee structural stability and safety, while also considering the impact of environmental factors. This process demands high technical expertise and requires meticulous planning and execution.

[0003] When hoisting new steel bridge main tower components onto the existing steel bridge main tower base, the components are too heavy to be adjusted manually. Jacks and wedges are often used for alignment, but their placement depends on worker experience, leading to low installation efficiency. Therefore, a new type of auxiliary mechanism for steel bridge main tower installation is needed. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses an auxiliary mechanism for the installation of a steel bridge main tower.

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

[0006] An auxiliary installation mechanism for a steel bridge main tower includes a main crossbeam. At least two sets of adjustable connecting components are installed on the same side of the main crossbeam, and at least one set of adjustable guide components is installed in the middle of the main crossbeam. Each set of adjustable guide components includes: a mounting frame extending obliquely upward from the main crossbeam; an upwardly inclined sliding strip is linearly slidably mounted on the mounting frame; a connecting seat is provided at the top of the sliding strip, and a guide plate is rotatably connected to the connecting seat; a first hydraulic rod is connected to the end of the sliding strip away from the guide plate, and the extension and retraction direction of the first hydraulic rod is parallel to the sliding direction of the sliding strip; a second hydraulic rod is mounted on the mounting frame with the same extension and retraction direction as the first hydraulic rod, and the end of the second hydraulic rod away from the mounting frame is rotatably connected to the guide plate.

[0007] As a preferred embodiment of this utility model, the cross-section of the sliding bar is T-shaped, and the mounting bracket is provided with a T-shaped groove adapted to the sliding bar.

[0008] As a preferred embodiment of this utility model, the guide plate is equipped with several horizontally oriented rollers on its guide side.

[0009] As a preferred embodiment of this utility model, at least one set of adjustable connecting components is provided on each side of the adjustable guide component.

[0010] As a preferred technical solution of this utility model, each set of adjustable connecting components includes: a connecting frame fixedly connected to the main cross frame, a first ball head seat provided at the end of the connecting frame away from the main cross frame, a flat plate joint rotatably connected to the first ball head seat, at least one slide rod rotatably connected to the flat plate joint, a cylindrical rod rotatably connected to the connecting frame and slidably inserted by the slide rod, an external thread provided at the opening of the cylindrical rod, and a nut threadedly connected to the threaded portion, the opening of the cylindrical rod being evenly divided into at least two halves, and a gasket being fitted to the inner wall of each half.

[0011] As a preferred embodiment of this utility model, the flat plate connector is provided with a second ball head seat adapted to the ball head of the sliding rod, and the connecting frame is provided with a second ball head seat adapted to the ball head of the cylinder rod.

[0012] As a preferred embodiment of this utility model, the main cross frame is inlaid with at least two bubble levels whose axes are horizontal and perpendicular to each other.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This application is equipped with an adjustable connection component that can adapt to different inclined installation surfaces of the main tower base of the steel bridge, while keeping the X and Y axes of the main cross frame horizontal, without affecting the guidance of the adjustable guide component, thus improving the versatility of the installation auxiliary mechanism;

[0015] Second, this application is equipped with an adjustable guide assembly. The first hydraulic rod and the second hydraulic rod can simultaneously extend and retract in the same direction and with the same stroke to adjust the position of the guide plate. The first hydraulic rod and the second hydraulic rod can extend and retract independently to adjust the deflection angle of the guide plate. This allows the steel bridge main tower component to move and align with the installation hole position under the sliding of the rollers after contacting the guide plate. There is no need to install jacks and wedges, which lowers the operating threshold and improves the installation efficiency of the steel bridge main tower. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the adjustable connection component according to an embodiment of the present invention;

[0019] Figure 4 This is an exploded view of the cylinder rod, slide rod, nut, and washer according to an embodiment of the present invention;

[0020] Figure 5 This is an exploded view of the adjustable guide assembly according to an embodiment of the present invention.

[0021] List of identifiers in attached diagrams:

[0022] 1. Main cross frame;

[0023] 2. Adjustable connecting assembly; 201. Connecting frame; 202. First ball head seat; 203. Flat joint; 204. Second ball head seat; 205. Cylindrical rod; 206. Sliding rod; 207. Nut; 208. Washer;

[0024] 3. Adjustable guide assembly; 301. Mounting bracket; 302. Sliding bar; 303. First hydraulic rod; 304. Second hydraulic rod; 305. Connecting seat; 306. Guide plate; 307. Roller;

[0025] 4. Bubble level. Detailed Implementation

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0027] Please see Figure 1-5 An auxiliary mechanism for installing a steel bridge main tower includes a main crossbeam 1. At least two sets of adjustable connecting components 2 are installed on the same side of the main crossbeam 1, and at least one set of adjustable guide components 3 are installed in the middle of the main crossbeam 1. The adjustable connecting components 2 are used to connect the installed steel bridge main tower sections. The adjustable guide components 3 are used to assist in aligning the hoisted steel bridge main tower components with the mounting holes, reducing installation difficulty.

[0028] At least one set of adjustable connecting components 2 is provided on each side of the adjustable guide component 3. Each set of adjustable connecting components 2 includes: a connecting frame 201 fixedly connected to the main cross frame 1. A first ball head seat 202 is provided at the end of the connecting frame 201 away from the main cross frame 1, and a flat plate joint 203 is rotatably connected to the first ball head seat 202. The flat plate joint 203 is provided with several through holes for bolts to pass through. At least one slide rod 206 is rotatably connected to the flat plate joint 203, and a cylindrical rod 205 that is slidably inserted into the connecting frame 201 is rotatably connected to the connecting frame 201. In the embodiment shown in the figure, the connecting frame 201 is provided with three sets of slide rods 206 and cylindrical rods 205 evenly distributed about itself. The opening of the cylindrical rod 205 is provided with external threads, and the threaded portion is threadedly connected to a nut 207. The opening of the cylindrical rod 205 is evenly divided into at least two halves, and a gasket 208 is attached to the inner wall of each half. Because the inner wall of the opening of the cylinder rod 205 is fitted with the gasket 208, the opening of the cylinder rod 205 slightly opens and deforms after it is inserted into the slide rod 206. When the nut 207 is tightened to the deformed part of the cylinder rod 205, the opened petals clamp the slide rod 206 together, changing the sliding connection between the slide rod 206 and the cylinder rod 205 from a sliding connection to a fixed connection. When several sets of slide rods 206 and cylinder rods 205 are fixedly connected, the ball head of the flat joint 203 cannot rotate relative to the first ball head seat 202.

[0029] The flat joint 203 is provided with a second ball head seat 204 adapted to the ball head of the slide rod 206, and the connecting frame 201 is provided with a second ball head seat 204 adapted to the ball head of the cylinder rod 205. When the slide rod 206 and the cylinder rod 205 slide relative to each other, the ball heads of the slide rod 206 and the cylinder rod 205 rotate within the second ball head seat 204.

[0030] Each adjustable guide assembly 3 includes: a mounting frame 301 extending obliquely upward from the main cross frame 1, with an upwardly inclined sliding strip 302 slidably mounted on the mounting frame 301. The sliding strip 302 has a T-shaped cross-section, and the mounting frame 301 has a T-shaped groove adapted to the sliding strip 302. A connecting seat 305 is provided at the top of the sliding strip 302, and a guide plate 306 is rotatably connected to the connecting seat 305. A first hydraulic rod 303 is connected to the end of the sliding strip 302 away from the guide plate 306, and the extension / retraction direction of the first hydraulic rod 303 is parallel to the sliding direction of the sliding strip 302. A second hydraulic rod 304 with the same extension / retraction direction as the first hydraulic rod 303 is mounted on the mounting frame 301, and the end of the second hydraulic rod 304 away from the mounting frame 301 is rotatably connected to the guide plate 306. Several horizontally oriented rollers 307 are mounted on the guide side of the guide plate 306. After the hoisted steel bridge main tower component contacts the guide plate 306, it moves and aligns with the mounting hole position under the sliding of the roller 307.

[0031] The main crossbeam 1 is inlaid with at least two bubble levels 4 with horizontal and mutually perpendicular axes to detect the posture of the main crossbeam 1 in the X and Y axes, so that after the adjustable connecting assembly 2 is fixed, the X and Y axes of the main crossbeam 1 remain horizontal. The X and Y axes are two mutually perpendicular horizontal axes.

[0032] Working principle:

[0033] When constructing the main tower of the steel bridge, an installation auxiliary mechanism of this application is installed around the docking position at the top of the already installed main tower base. The screw rod passes through the through hole of the flat plate joint 203 and is fixedly connected to the main tower base. Then, all nuts 207 are loosened, and the X and Y axes of the main cross frame 1 are adjusted to keep them horizontal. Then, the nuts 207 are tightened, and the open petals of the cylinder rod 205 clamp the slide rod 206 together, so that the sliding connection between the slide rod 206 and the cylinder rod 205 changes to a fixed connection. The ball head of the flat plate joint 203 cannot rotate relative to the first ball head seat 202. Thus, the adjustable connection component 2 can adapt to different inclined installation surfaces of the main tower base of the steel bridge.

[0034] When the hoisted steel bridge main tower component is aligned with the installation position at the top of the main tower base, the first hydraulic rod 303 and the second hydraulic rod 304 can simultaneously extend and retract in the same direction and with the same stroke to adjust the position of the guide plate 306. The first hydraulic rod 303 and the second hydraulic rod 304 can also extend and retract independently to adjust the deflection angle of the guide plate 306, thereby adapting to the installation environment and ensuring that the steel bridge main tower component is precisely aligned with the installation position at the top of the main tower base.

[0035] The auxiliary installation mechanism for the main tower of the steel bridge in this application is only a guiding mechanism, which is suitable for adjusting the position of hoisting components that are difficult to adjust manually. It is not a load-bearing mechanism, and its own strength is sufficient to meet the guiding requirements.

[0036] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. An auxiliary mechanism for installing the main tower of a steel bridge, comprising a main cross frame (1), characterized in that, At least two sets of adjustable connecting components (2) are installed on the same side of the main cross frame (1), and at least one set of adjustable guide components (3) is installed in the middle of the main cross frame (1); each set of adjustable guide components (3) includes: a mounting frame (301) extending obliquely upward from the main cross frame (1), the mounting frame (301) is linearly slidably mounted with an upwardly inclined sliding bar (302), the top end of the sliding bar (302) is provided with a connecting seat (305), and the connecting seat (305) is rotatably connected to a guide plate (306), the end of the sliding bar (302) away from the guide plate (306) is connected to a first hydraulic rod (303), and the extension direction of the first hydraulic rod (303) is parallel to the sliding direction of the sliding bar (302), the mounting frame (301) is mounted with a second hydraulic rod (304) with the same extension direction as the first hydraulic rod (303), and the end of the second hydraulic rod (304) away from the mounting frame (301) is rotatably connected to the guide plate (306).

2. The auxiliary mechanism for installing a steel bridge main tower according to claim 1, characterized in that, The cross-section of the sliding bar (302) is T-shaped, and the mounting bracket (301) is provided with a T-shaped groove adapted to the sliding bar (302).

3. The auxiliary mechanism for installing a steel bridge main tower according to claim 1, characterized in that, The guide plate (306) is equipped with several horizontally oriented rollers (307).

4. The auxiliary mechanism for installing a steel bridge main tower according to claim 1, characterized in that, At least one set of adjustable connecting components (2) is provided on each side of the adjustable guide component (3).

5. The auxiliary mechanism for installing a steel bridge main tower according to claim 1, characterized in that, Each adjustable connection assembly (2) includes: a connection frame (201) fixedly connected to the main cross frame (1), a first ball head seat (202) provided at the end of the connection frame (201) away from the main cross frame (1), the first ball head seat (202) being rotatably connected to a flat joint (203), the flat joint (203) being rotatably connected to at least one slide rod (206), the connection frame (201) being rotatably connected to a cylinder rod (205) slidably inserted by the slide rod (206), the opening of the cylinder rod (205) being provided with an external thread, and the threaded portion being threadedly connected to a nut (207), the opening of the cylinder rod (205) being evenly divided into at least two halves, and each halves having a gasket (208) attached to its inner wall.

6. The auxiliary mechanism for installing a steel bridge main tower according to claim 5, characterized in that, The flat plate joint (203) is provided with a second ball head seat (204) adapted to the ball head of the slide rod (206), and the connecting frame (201) is provided with a second ball head seat (204) adapted to the ball head of the cylinder rod (205).

7. The auxiliary mechanism for installing a steel bridge main tower according to claim 1, characterized in that, The main cross frame (1) is inlaid with at least two bubble levels (4) whose axes are horizontal and perpendicular to each other.

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