Steel box girder sliding assembly

Abstract

The application discloses a steel box girder sliding assembly in the technical field of bridge construction facilities, which comprises a workbench, a rotating track, a front translation track and a rear translation track, and a rotating support is further arranged on the workbench and located at a position close to the front translation track between the front translation track and the rear translation track; the rotating track is a circular arc track and is located on a circle with the rotating support as the center; a retreat stopping mechanism, a propelling mechanism and a bearing device are arranged on the rotating track, the front translation track and the rear translation track; compared with the prior art, the beneficial effect of the application is that the sliding assembly is arranged on the flat ground, the hoisting equipment can hoist the arc-shaped steel box girder, the arc-shaped steel box girder is rotated and translated to the required position, the influence of the uneven height of the bridge pier position on the construction is greatly reduced, and the problems of the difficulty in stabilizing the hoisting equipment and the construction difficulty caused by the geographical environment of the construction site are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction facilities, in particular to a steel box girder sliding assembly. BACKGROUND

[0002] The arc-shaped steel box girder is mostly used in the construction of the turning place of the viaduct or the ramp, and changes the turning of the road. In order to facilitate transportation, the arc-shaped steel box girder is transported from the factory in scattered parts, then assembled at the construction site, and then hoisted onto the pier by hoisting equipment.

[0003] However, the actual construction process is not as ideal as the design. The geographical environment near the pier is complex, and the height is not uniform, and there are even rivers, which greatly affects the stability of the hoisting equipment. This also leads to the fact that the traditional construction device cannot meet our construction needs, and no equipment has been found in the prior art to solve this problem.

[0004] In view of the above, the applicant proposes a steel box girder sliding assembly. SUMMARY

[0005] In view of the problems existing in the prior art, a steel box girder sliding assembly is proposed to solve the above problems.

[0006] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows:

[0007] The steel box girder sliding assembly comprises a workbench, a rotating track, a front translation track and a rear translation track. The front translation track and the rear translation track are respectively arranged on the front and rear sides of the workbench. The rotating track is arranged on the rear side of the rear translation track. The workbench is further provided with a rotating support, which is located near the front translation track. The rotating track is a circular arc track, and the rotating track is located on a circle with the rotating support as the center. The rotating track, the front translation track and the rear translation track are all provided with a retreat prevention mechanism to prevent the device from retreating, a propulsion mechanism to push the arc-shaped steel box girder forward, and a bearing device to bear the arc-shaped steel box girder. One end of the propulsion mechanism is connected to the arc-shaped steel box girder, and the other end is connected to the retreat prevention mechanism.

[0008] The worktable is set up at a position with better terrain beside the pier, a rotating track, a front translation track and a rear translation track are arranged on the worktable, and a bearing device, a pushing mechanism and a retreat-preventing mechanism are arranged on the tracks, then the spliced arc-shaped steel box girder is hoisted to the bearing device on the track by hoisting equipment, since the angle of the set worktable does not necessarily conform to the angle required by construction, the arc-shaped steel box girder can be rotated to the required position by the pushing mechanism and the rotating support on the rotating track, then the arc-shaped steel box girder is pushed and translated to the required position by the pushing mechanisms on the front translation track and the rear translation track, thus the problem that the hoisting equipment is difficult to stabilize due to the complex geographical environment is solved.

[0009] With further limitation, the cross sections of the rotating track, the front translation track and the rear translation track are U-shaped, the bearing device is T-shaped, and the width of the bottom of the bearing device matches the inner width of the rotating track, the front translation track and the rear translation track, so that the structure is simpler, and the manufacturing material cost and time cost are saved.

[0010] With further limitation, the pushing mechanism comprises a hydraulic cylinder and a power control box, and the hydraulic cylinder is driven to extend and retract by the power control box.

[0011] With further limitation, the retreat-preventing mechanism comprises retreat-preventing blocks arranged on both sides of the rotating track, the front translation track and the rear translation track, and a retreat-preventing seat arranged across the rotating track, the front translation track and the rear translation track, the retreat-preventing blocks are uniformly and spacedly arranged along the extension direction of the track, the rear end of the retreat-preventing seat abuts against the retreat-preventing blocks to achieve the retreat-preventing effect, the front end of the retreat-preventing seat is spacedly provided with two pushing rear ear plates, the rear end of the arc-shaped steel box girder is spacedly provided with two pushing front ear plates, the front end of the hydraulic cylinder is hinged between the two pushing front ear plates, and the rear end of the hydraulic cylinder is hinged between the two pushing rear ear plates, so that the retreat-preventing seat and the retreat-preventing blocks are arranged, when the hydraulic cylinder extends, the arc-shaped steel box girder is pushed forward by the hydraulic cylinder due to the effect of the retreat-preventing blocks, and when the hydraulic cylinder retracts, the retreat-preventing seat is pulled to move forward, so that the forward movement is achieved.

[0012] With further limitation, the cross section of the retreat-preventing seat is E-shaped with the opening downward, the middle part of the retreat-preventing seat on each track is arranged inside the track, and the two sides are arranged outside the track, the bottom corners of the two sides of the front end of the retreat-preventing seat are retracted upward, and the two sides are wedge-shaped with the front small and the rear large, so that the retreat-preventing seat is arranged in the E-shaped with the opening downward, the engagement between the retreat-preventing seat and the track is higher, and the two sides of the retreat-preventing seat are arranged in the wedge-shaped with the front small and the rear large, so that the hydraulic cylinder directly drives the retreat-preventing seat to move forward when the hydraulic cylinder retracts, and the retreat-preventing seat can slide over the retreat-preventing blocks to the front end of the next retreat-preventing block without external intervention due to the inclined surface of the wedge, so that the construction is more convenient.

[0013] Further limit, the rotating support includes upper support and lower support, the center position of lower support is equipped with a limit shaft, the bottom of upper support is equipped with limit hole corresponding to the position of limit shaft, the limit shaft between upper support and lower support is sequentially equipped with rubber layer, sliding plate layer and hard metal layer from top to bottom, the height of bearing device is higher than the height of rotating support.

[0014] Further limit, the workbench includes multiple steel columns standing on the ground, sliding beam arranged on the steel column and reinforcing beam connected with multiple steel columns for reinforcing stability, the sliding beam is arranged at the position of each track required by us, the rotating track, front translation track and rear translation track are arranged on the sliding beam at the position, and the rotating support is arranged on the reinforcing beam at the position.

[0015] The beneficial effects of the present application compared with the prior art are that the sliding assembly is arranged on the flat ground, the hoisting equipment is convenient for hoisting the arc-shaped steel box girder, then the arc-shaped steel box girder is rotated and translated to the position required by us, the influence of the uneven ground of the position of the bridge pier on the construction is greatly reduced, and the problem that the hoisting equipment is difficult to be stable and the construction is difficult due to the geographical environment of the construction site is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a part of the top view of the present application;

[0017] Figure 2 is a three-dimensional schematic view of the pushing mechanism;

[0018] Figure 3 is a cooperation schematic view of the bearing device and the track;

[0019] Figure 4 is a schematic view of the internal structure of the rotating support.

[0020] Corresponding to the rotating track 1, the front translation track 2, the rear translation track 3, the rotating support 4, the upper support 41, the lower support 42, the limit shaft 43, the rubber plate 44, the high-density sliding plate 45, the stainless steel plate 46, the steel column 5, the sliding beam 6, the reinforcing beam 7, the bearing device 8, the hydraulic cylinder 9, the stop block 10, the stop seat 11, the pushing rear ear plate 12, the pushing front ear plate 13, the arc-shaped steel box girder 14 in the figure. DETAILED DESCRIPTION

[0021] In order for those skilled in the art to better understand the present application, the technical solutions of the present application are further described below in combination with the drawings and examples.

[0022] Example:

[0023] As Figures 1-4As shown, the steel box girder sliding assembly includes a workbench, two rotating tracks 1, two front translation tracks 2 and two rear translation tracks 3, the two front translation tracks 2 and the two rear translation tracks 3 are respectively arranged on the front and rear sides of the workbench, the rotating track 1 is arranged on the rear side of the rear translation track 3, and the workbench is further provided with a rotating support 4. The workbench includes eighteen steel columns 5 standing on the ground, a sliding beam 6 arranged on the steel column 5, and a reinforcing beam 7 connected to the eighteen steel columns 5 for reinforcing stability. The sliding beam 6 is arranged at the position of each track required by us. The rotating track 1, the front translation track 2 and the rear translation track 3 are arranged on the sliding beam 6 at the position. The rotating support 4 is arranged on the reinforcing beam 7 between the two front translation tracks 2. The rotating track 1 is a circular arc track, and the rotating track 1 is located on a circle with the rotating support 4 as the center. The rotating track 1, the front translation track 2 and the rear translation track 3 are all provided with a retreat prevention mechanism for preventing the device from retreating, a pushing mechanism for pushing the arc-shaped steel box girder 14 forward, and a bearing device 8 for bearing the arc-shaped steel box girder 14. The rotating support 4 includes an upper support 41 and a lower support 42. A limiting shaft 43 is arranged at the center position of the lower support 42. A limiting hole is formed in the bottom of the upper support 41 corresponding to the position of the limiting shaft 43. A rubber plate 44, a high-density sliding plate 45 and a stainless steel plate 46 are sequentially arranged on the limiting shaft 43 between the upper support 41 and the lower support 42 from top to bottom. The stainless steel plate 46 can also be an aluminum alloy. The height of the bearing device 8 is higher than the height of the rotating support 4. The cross section of the rotating track 1, the front translation track 2 and the rear translation track 3 is in the shape of U. The bearing device 8 is in the shape of T. The width of the bottom of the bearing device 8 matches the inner width of the rotating track 1, the front translation track 2 and the rear translation track 3. The pushing mechanism includes a hydraulic cylinder 9 and a power control box. The hydraulic cylinder 9 is driven to extend and retract through the power control box. The retreat prevention mechanism includes retreat prevention blocks 10 arranged on both sides of the rotating track 1, the front translation track 2 and the rear translation track 3, and a retreat prevention seat 11 arranged across the rotating track 1, the front translation track 2 and the rear translation track 3. The retreat prevention blocks 10 are uniformly and spacedly arranged along the extension direction of the track. The rear end of the retreat prevention seat 11 abuts against the retreat prevention block 10 to achieve the retreat prevention effect. The front end of the retreat prevention seat 11 is spacedly provided with two pushing rear ear plates 12. The rear end of the arc-shaped steel box girder 14 is spacedly provided with two pushing front ear plates 13. The front end of the hydraulic cylinder 9 is hinged between the two pushing front ear plates 13. The rear end of the hydraulic cylinder 9 is hinged between the two pushing rear ear plates 12. The cross section of the retreat prevention seat 11 is in the shape of E with the opening downward. The middle part of the retreat prevention seat 11 on each track is arranged inside the track. The two sides of the retreat prevention seat 11 are arranged outside the track. The bottom corners of the two sides of the front end of the retreat prevention seat 11 are retracted upward. The two sides are in the shape of wedge block with the front small and the rear large.

[0024] Through setting up a workbench at a better location beside the pier, setting a rotating track 1, a front translation track 2 and a rear translation track 3 on the workbench, and setting a bearing device 8, a pushing mechanism and a retreat-preventing mechanism on the tracks, then using hoisting equipment to hoist the spliced arc-shaped steel box girder 14 to the bearing device 8 on the track, since the angle of the workbench we set up may not necessarily conform to the angle required by the construction, we can rotate the arc-shaped steel box girder 14 around the rotating support 4 to the position we need through the pushing mechanism on the rotating track 1 and the rotating support 4, then push and translate the arc-shaped steel box girder 14 synchronously through the pushing mechanisms on the front translation track 2 and the rear translation track 3 to the position we need, thus solving the problem that the hoisting equipment is difficult to stabilize due to the complex geographical environment; setting the tracks and the bearing device 8 in this way can make the structure simpler, saving the manufacturing material cost and time cost; setting the retreat-preventing seat 11 and the retreat-preventing block 10 in this way, when the hydraulic cylinder 9 extends, the arc-shaped steel box girder 14 is pushed forward by the hydraulic cylinder 9 due to the action of the retreat-preventing block 10, and when the hydraulic cylinder 9 retracts, the retreat-preventing seat 11 is pulled to move forward, thus realizing the forward movement; setting the retreat-preventing seat 11 into an E-shaped structure with the opening downward can make the engagement between the retreat-preventing seat 11 and the track higher, and setting the two sides of the retreat-preventing seat 11 into wedge-shaped structures with the front small and the rear large can make the hydraulic cylinder 9 directly drive the retreat-preventing seat 11 to move forward when it retracts, and since there is a slope on the wedge-shaped structure, the retreat-preventing seat 11 can slide over the retreat-preventing block 10 and enter the front end of the next retreat-preventing block 10 without our external intervention, thus making the construction more convenient.

[0025] If we need to adjust the angle of the arc-shaped steel box girder 14, we can lift the arc-shaped steel box girder 14 through the jacking device, set a base with increased height on the rotating support 4, and then lower the jacking device, at this time we can push the arc-shaped steel box girder 14 through the pushing mechanism on the rotating track 1, and rotate the arc-shaped steel box girder 14 around the rotating support 4, stop when it rotates to the angle we need, then lift the arc-shaped steel box girder 14 through the jacking device, disassemble the base on the rotating support 4 and the bearing device 8 on the rotating track 1, install the bearing device 8 and the pushing mechanism on the front translation track 2 and the rear translation track 3, then lower the jacking device to place the arc-shaped steel box girder 14 on the bearing device 8 on the front translation track 2 and the rear translation track 3, at this time we can push the arc-shaped steel box girder 14 to translate through the pushing mechanisms on the front translation track 2 and the rear translation track 3 synchronously, and translate to the position of the pier we need.

[0026] The present application has the beneficial effect compared with the prior art that the hoisting equipment is facilitated to hoist the arc-shaped steel box girder by arranging the sliding assembly on the flat ground, then the arc-shaped steel box girder is rotated and horizontally moved to the required position, the influence of the uneven ground of the bridge pier position on the construction is greatly reduced, and the problem that the hoisting equipment is difficult to be stable and the construction is difficult due to the geographical environment of the construction site is solved.

[0027] The steel box girder sliding assembly provided by the present application is described in detail above. The description of the specific embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A steel box girder sliding assembly, characterized in that: The system includes a worktable, a rotary track, a front translation track, and a rear translation track. The front translation track and the rear translation track are respectively located on the front and rear sides of the worktable. The rotary track is located on the rear side of the rear translation track. The worktable is also provided with a rotating support, which is located near the front translation track. The rotary track is an arc-shaped track, located on a circle with the rotating support as its center. The rotating track, the front translation track, and the rear translation track are all equipped with a backstop mechanism to prevent the device from reversing, a propulsion mechanism to push the arc-shaped steel box girder forward, and a bearing device to support the arc-shaped steel box girder. One end of the propulsion mechanism is connected to the arc-shaped steel box girder, and the other end is connected to the backstop mechanism. The cross-sections of the rotating track, the front translation track, and the rear translation track are all U-shaped, the supporting device is T-shaped, and the bottom width of the supporting device matches the inner width of the rotating track, the front translation track, and the rear translation track. The propulsion mechanism includes a hydraulic cylinder and a power control box, and the hydraulic cylinder is driven to extend and retract via the power control box. The anti-reverse mechanism includes anti-reverse blocks disposed on both sides of the rotating track, the front translation track, and the rear translation track, and anti-reverse seats spanning the rotating track, the front translation track, and the rear translation track. The anti-reverse blocks are evenly spaced along the extension direction of the track. The rear end of the anti-reverse seat abuts against the anti-reverse block to achieve the anti-reverse effect. The front end of the anti-reverse seat is provided with two propulsion rear ear plates spaced apart. The rear end of the arc-shaped steel box girder is provided with two propulsion front ear plates spaced apart. The front end of the hydraulic cylinder is hinged between the two propulsion front ear plates, and the rear end of the hydraulic cylinder is hinged between the two propulsion rear ear plates.

2. The steel box girder sliding assembly according to claim 1, characterized in that: The anti-reverse seat has an E-shaped cross-section with the opening facing downwards. The middle part of the anti-reverse seat on each track is placed inside the track, and the two sides are placed outside the track. The bottom corners of the front end of the anti-reverse seat are recessed upwards, and the two sides are wedge-shaped with the front smaller and the back larger.

3. The steel box girder sliding assembly according to claim 2, characterized in that: The rotating support includes an upper support and a lower support. A limiting shaft is provided at the center of the lower support. A limiting hole is provided at the bottom of the upper support corresponding to the position of the limiting shaft. A rubber layer, a sliding plate layer and a hard metal layer are sequentially passed through the limiting shaft between the upper support and the lower support from top to bottom. The height of the bearing device is higher than the height of the rotating support.

4. The steel box girder sliding assembly according to claim 3, characterized in that: The workbench includes multiple steel columns standing on the ground, sliding beams mounted on the steel columns, and reinforcing beams connecting the multiple steel columns to enhance stability. The sliding beams are positioned at the locations of each required track. The rotating track, the forward translation track, and the backward translation track are all mounted on the sliding beams at their respective positions, and the rotating support is mounted on the reinforcing beams at their respective positions.

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