Sliding pushing device for steel structure construction

Abstract

A sliding and pushing device for steel structure construction comprises a rail base, an I-shaped steel rail, a locking jack, a pushing jack, a sliding trolley and a sliding plate, the rail base and the I-shaped steel rail are detachably connected through insertion of expansion bolts and clamping plates, and the locking jack is movably hinged to the pushing jack; a sliding plate in the sliding trolley is driven by adjusting mechanisms such as a lead screw transmission assembly and the like and slides in a limited mode along a trolley sliding groove. The pushing jack is connected with a pushing plate with a flexible protection pad through a hinge, bottom pulleys of the sliding trolley make rolling contact with a rail wing plate, and a scale groove is formed in the side portion of the trolley to assist in positioning. According to the device, rapid track assembly is achieved through modular design, accurate sliding and position fine adjustment of the steel components are guaranteed through a hinge structure and an adjusting mechanism, the construction stability is improved through cooperation of a locking mechanism and a pushing mechanism, the problems of guide deviation, low efficiency, insufficient stability and the like of a traditional method are solved, and the device is suitable for efficient and safe construction of large steel structural components.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure construction technology, and specifically relates to a sliding and jacking device for steel structure construction. Background Technology

[0002] In the construction of large-scale steel structure projects, such as bridges, stadiums, and high-rise buildings, it is often necessary to slide heavy steel components (such as long-span beams and trusses) to their designed positions and precisely position them. Traditional construction methods mostly use winch traction or hydraulic jacks for step-by-step pushing, which has the following significant drawbacks:

[0003] 1. Traditional sliding tracks lack efficient guiding and positioning structures. During the sliding process, steel components are prone to displacement due to track deviation or uneven force, making it difficult to guarantee the accuracy of subsequent installation.

[0004] 2. Sliding and jacking operations are usually carried out in steps, requiring frequent equipment switching. Furthermore, the lack of synchronous control during the jacking process can easily lead to asynchrony, resulting in a longer construction period.

[0005] 3. The fixing devices are mostly simple mechanical locks, which have weak anti-overturning ability. Especially when heavy components slide, they are prone to safety accidents due to sudden loads or positioning failure.

[0006] 4. Traditional devices have fixed structures, making it difficult to adapt to steel components with different cross-sectional shapes or sizes, and they lack the ability to adaptively adjust to component angular deviations, thus limiting their application scenarios.

[0007] In existing technologies, although some sliding jacking devices attempt to integrate guiding and jacking functions, they generally suffer from complex structures, cumbersome operations, and high maintenance costs. Furthermore, their synchronous control precision is insufficient, failing to meet the high standards of construction efficiency, precision, and safety required for modern large-scale steel structure projects. Summary of the Invention

[0008] In view of the technical problems existing in the background technology, the present invention provides a sliding and jacking device for steel structure construction to solve the problems of guiding deviation, low efficiency and insufficient stability in the prior art, and improve the reliability and economy of construction of large steel structure components.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A steel structure construction sliding and jacking device includes a track base, an I-beam rail, a locking jack, a jacking jack, a sliding trolley, and a sliding plate. The track base is fixedly installed on the upper surface of the construction platform, and the upper surface of the track base is detachably connected to the I-beam rail. The locking jack is installed on the I-beam rail, and the side of the locking jack is movably hinged to the jacking jack. The sliding trolley is also installed on the I-beam rail, located on the side of the jacking jack. The sliding plate is installed inside the sliding trolley, and the sliding plate is driven by an adjustment mechanism and slides along the sliding groove of the sliding trolley.

[0011] In a preferred embodiment, the track base is fixedly connected to the upper surface of the construction platform by expansion bolts, and a clamping plate is provided parallel to the upper surface of the track base. The two sides of the I-beam track are inserted into the clamping plate and spliced ​​end to end.

[0012] In a preferred embodiment, the lower end of the locking jack is slidably connected to the I-beam rail, and the locking component is driven by a hydraulic device to achieve position locking; the side of the locking jack is provided with a first hinge, and is hinged to the end of the jacking jack through the first hinge.

[0013] In a preferred embodiment, the jack is connected to an inlet pipe and an outlet pipe, and the end of its hydraulic rod is hinged to one side of the push plate via a second hinge. A flexible pad is attached to the other side of the push plate.

[0014] In a preferred embodiment, the sliding trolley includes a trolley platform, which is disposed on the upper end face of the I-beam rail. Its lower end face is connected to a support shaft through a connecting plate. The end of the support shaft is rotatably connected to the axis of a pulley. The pulley is located on both sides of the web of the I-beam rail and rolls in contact with the flange of the I-beam rail.

[0015] In a preferred embodiment, the upper end face of the trolley platform is provided with a parallel sliding groove, and the lower end face of the sliding plate is provided with a corresponding retaining rail. The sliding plate is inserted into the sliding groove through the retaining rail and is driven by the adjustment mechanism to slide along the sliding groove for a limited position.

[0016] In a preferred embodiment, the adjustment mechanism includes a lead screw and a transmission assembly. A groove is provided at the axis of the trolley platform, and a lead screw coaxial with the trolley platform is provided in the groove. One end of the lead screw is rotatably connected to the rotating base inside the groove, and the other end of the lead screw is provided with an adjustment knob. The lower end face of the sliding plate is provided with a transmission assembly and is connected to the lead screw for transmission.

[0017] In a preferred embodiment, the side of the trolley platform is engraved with graduated grooves.

[0018] A sliding jacking device for steel structure construction, which can achieve the following beneficial effects in actual use:

[0019] 1. The track base is fixed to the construction platform with expansion bolts. The clamping plate on its upper end is inserted and spliced ​​with the I-beam track, which supports the quick disassembly and assembly of the track and the adjustment of the span. It can adapt to the sliding needs of steel structure components in different construction sites and improves the installation efficiency by more than 50% compared with the traditional welding and fixing of the track.

[0020] 2. The locking jack and the jacking jack are hinged together via the first hinge, enabling a continuous operation process of "locking-pushing-relocking" without the need to stop and switch equipment. The design of the sliding trolley and sliding plate allows for simultaneous fine-tuning of the position of steel components during the sliding process, avoiding positioning deviations caused by traditional step-by-step operations and shortening the construction cycle by more than 30%.

[0021] 3. The sliding plate is connected to the slide groove of the trolley platform via a rail and is driven by a lead screw to slide along the slide groove. The operator can achieve millimeter-level precise displacement of the sliding plate (minimum adjustment 0.5mm) by adjusting the knob, adapting to the lateral positioning requirements of steel components of different sizes, and solving the installation compatibility problem caused by component size deviations in traditional devices;

[0022] 4. The hydraulic rod end of the jack is connected to the push plate through the second hinge, which can adapt to the small angular deviation of the steel component (within ±3°) and avoid damage to the component caused by rigid jacking; the flexible pad on the inner side of the push plate is made of high elastic rubber material, which can increase friction to prevent slippage and buffer the jacking force to protect the integrity of the component surface coating. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the connection method between the track base and the I-beam track of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the sliding trolley structure of this utility model;

[0028] Figure 5 This is an anatomical diagram of the sliding trolley structure of this utility model;

[0029] Figure 6 This is a bottom view of the disassembled sliding trolley of this utility model.

[0030] In the diagram: 1. Construction platform; 2. Track base; 201. Expansion bolt; 202. Clamping plate; 3. I-beam rail; 4. Locking jack; 401. First hinge; 5. Pushing jack; 5. Second hinge; 501. Liquid inlet pipe; 502. Liquid outlet pipe; 503. Push plate; 504. Flexible pad; 505. Sliding trolley; 6. Trolley platform; 601. Connecting plate; 602. Support shaft; 603. Pulley; 604. Slide groove; 605. Scale groove; 606. Lead screw; 607. Adjustment knob; 608. Rotating base; 609. Groove; 610. Sliding plate; 7. Clamping rail; 701. Transmission assembly; 702. Detailed Implementation

[0031] like Figure 1 and Figure 2 As shown, a steel structure construction sliding and jacking device includes a track base 2, an I-beam rail 3, a locking jack 4, a jacking jack 5, a sliding trolley 6, and a sliding plate 7. The track base 2 is fixedly installed on the upper surface of the construction platform 1, and the upper surface of the track base 2 is detachably connected to the I-beam rail 3. The locking jack 4 is installed on the I-beam rail 3, and the side of the locking jack 4 is movably hinged to the jacking jack 5. The sliding trolley 6 is also installed, located on the side of the jacking jack 5. The sliding trolley 6 is equipped with the sliding plate 7, which is driven by the adjustment mechanism and slides along the sliding groove of the sliding trolley 6. The track base 2 is fixedly connected to the upper end face of the construction platform 1 by expansion bolts 201. The upper end face of the track base 2 is provided with a clamping plate 202 parallel to it. The two sides of the I-beam track 3 are inserted into the clamping plate 202 and spliced ​​end to end.

[0032] During construction, the installation position of the track base 2 is first determined on the construction platform 1. Its levelness and parallelism are calibrated using measuring instruments. High-strength expansion bolts (such as M20, evenly distributed at 500mm intervals) are then used to secure the track base 2 to the upper surface of the construction platform 1. The clamping plate 202 on the upper surface of the track base 2 has an L-shaped structure (15mm thick, Q345B material). The flanges on both sides of the I-beam track 3 are inserted into the grooves of the clamping plate 202. Bolts (not shown in the attached diagram) are used to fix the end-to-end spliced ​​I-beam track 3, forming a continuous and smooth sliding track.

[0033] Preferred solutions include Figure 3 As shown, the lower end of the locking jack 4 is slidably connected to the I-beam rail 3, and the locking component is driven by a hydraulic device to achieve position locking; the side of the locking jack 4 is provided with a first hinge 401, and is hinged to the end of the jacking jack 5 through the first hinge 401.

[0034] A locking jack 4 is installed on the I-beam rail 3. Its lower end is equipped with a sliding support (not shown in the attached diagram) adapted to the rail flange, allowing it to slide freely along the length of the rail. When the locking jack 4 moves to a predetermined position, a hydraulic device (such as a hydraulic pump station) drives a locking component (such as a wedge block) to extend and rigidly lock into close contact with the bottom surface of the rail flange. The locking force is calculated to be up to 1.2 times the jacking force. The locking jack 4 is hinged to the end of the jacking jack 5 via a first hinge 401, allowing the jacking jack 5 to swing within a range of ±5° to accommodate minor angular deviations in the steel components.

[0035] Preferred solutions include Figure 3 As shown, the jack 5 is connected to an inlet pipe 502 and an outlet pipe 503. The end of its hydraulic rod is hinged to one side of the push plate 504 via a second hinge 501. A flexible pad 505 is attached to the other side of the push plate 504.

[0036] The jacking jack 5 is connected to the hydraulic control system via high-pressure oil pipes (inlet pipe 502, outlet pipe 503). The second hinge 501 at the end of the hydraulic rod is hinged to the push plate 504. The push plate 504 is made of Q235B steel plate (20mm thick). A 10mm thick nitrile rubber flexible pad 505 is pasted on the other side and fixed by countersunk bolts to ensure that it forms a flexible contact with the surface of the steel component during jacking, which increases the friction and avoids rigid collision damage to the surface of the component.

[0037] Preferred solutions include Figure 4 As shown, the sliding trolley 6 includes a trolley platform 601, which is disposed on the upper end face of the I-beam rail 3. Its lower end face is connected to the support shaft 603 through the connecting plate 602. The end of the support shaft 603 is rotatably connected to the axis of the pulley 604. The pulley 604 is located on both sides of the web of the I-beam rail 3 and rolls in contact with the flange of the I-beam rail 3.

[0038] The trolley platform 601 of the sliding trolley 6 is a rectangular steel structure platform (the dimensions are customized according to the component specifications, such as length × width = 2000mm × 1500mm). The lower end face is vertically connected to the support shaft 603 via four sets of connecting plates 602 (12mm thick). Deep groove ball bearings are installed at the ends of the support shaft 603, with an interference fit to the pulley 604 shaft. The pulleys 604 are made of cast steel (surface hardened, hardness HRC45), with a diameter of 200mm, distributed on both sides of the web of the I-beam rail 3, and roll in contact with the upper surface of the flange. A single set of pulleys is designed to bear a load of 50 tons, meeting the sliding requirements of heavy components.

[0039] Preferred solutions include Figure 5As shown, two parallel sliding grooves 605 are formed on the upper surface of the trolley platform 601. The retaining rail 701 at the lower end of the sliding plate 7 is inserted into the sliding grooves to form a limiting sliding pair. The lead screw 607 of the adjustment mechanism (5mm pitch, accuracy grade 7) passes through the groove 610 at the axis of the trolley platform 601. One end is connected to the rotating base 609 through a thrust bearing, allowing the lead screw 607 to rotate freely. The adjustment knob 608 at the other end is provided with anti-slip texture for easy manual operation. The transmission component 702 at the lower end of the sliding plate 7 is a nut pair structure that meshes with the lead screw 607. When the adjustment knob 608 is rotated, the sliding plate 7 slides horizontally along the sliding groove 605 with an accuracy of 0.5mm / turn.

[0040] Preferred solutions include Figure 5 and Figure 6 As shown, the depth of the groove 610 matches the diameter of the lead screw 607 (e.g., 40mm), and the interior is treated with rust prevention. The rotating base 609 is fixed to the inner wall of the groove 610 by countersunk bolts, ensuring that the coaxiality error of the lead screw 607 is ≤0.2mm. The transmission assembly 702 is welded to the bottom surface of the sliding plate 7. The nut assembly is made of tin bronze, which has self-lubricating properties and reduces adjustment resistance. The adjusting knob 608 has a limiting boss on its outer side (not shown in the attached figure) to prevent excessive rotation from causing the lead screw to dislodge.

[0041] Preferred solutions include Figure 5 and Figure 6 As shown, the side of the trolley platform 601 is engraved with a scale groove 606; the scale groove 606 is made by laser etching process, with a scale spacing of 1mm. The starting end of the track base 2 is taken as the zero point. During construction, the sliding distance can be precisely controlled by observing the position of the sliding trolley 6 relative to the scale groove 606, and the error can be controlled within ±2mm.

[0042] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A steel structure construction sliding jacking device, comprising a track base (2), an I-beam track (3), a locking jack (4), a jacking jack (5), a sliding trolley (6), and a sliding plate (7), characterized in that: The upper end face of the construction platform (1) is fixedly equipped with a track base (2), and the upper end face of the track base (2) is detachably connected to the I-beam track (3); a locking jack (4) is installed on the I-beam track (3), and the side of the locking jack (4) is movably hinged to the jacking jack (5); the sliding trolley (6) is also installed on the I-beam track (3), the sliding trolley (6) is located on the side of the jacking jack (5), and the sliding plate (7) is provided inside the sliding trolley (6). The sliding plate (7) is driven by the adjustment mechanism and slides along the sliding groove of the sliding trolley (6).

2. The steel structure construction sliding jacking device according to claim 1, characterized in that: The track base (2) is fixedly connected to the upper end face of the construction platform (1) by expansion bolts (201). A clamping plate (202) is set parallel to the upper end face of the track base (2). The two sides of the I-beam track (3) are inserted into the clamping plate (202) and spliced ​​end to end.

3. The steel structure construction sliding jacking device according to claim 1, characterized in that: The lower end of the locking jack (4) is slidably connected to the I-beam rail (3) and the locking component is driven by a hydraulic device to achieve position locking; the side of the locking jack (4) is provided with a first hinge (401) and is hinged to the end of the jack (5) through the first hinge (401).

4. The steel structure construction sliding jacking device according to claim 1, characterized in that: The jack (5) is connected to an inlet pipe (502) and an outlet pipe (503). The end of its hydraulic rod is hinged to one side of the push plate (504) via a second hinge (501). A flexible pad (505) is attached to the other side of the push plate (504).

5. The steel structure construction sliding jacking device according to claim 1, characterized in that: The sliding trolley (6) includes a trolley platform (601), which is located on the upper end face of the I-beam rail (3). Its lower end face is connected to the support shaft (603) through a connecting plate (602). The end of the support shaft (603) is rotatably connected to the axis of the pulley (604). The pulley (604) is located on both sides of the web of the I-beam rail (3) and rolls in contact with the flange of the I-beam rail (3).

6. The steel structure construction sliding jacking device according to claim 5, characterized in that: The upper end face of the trolley platform (601) is provided with a parallel groove (605), and the lower end face of the sliding plate (7) is provided with a corresponding rail (701). The sliding plate (7) is inserted into the groove (605) through the rail (701) and is driven by the adjustment mechanism to slide along the groove (605) for a limited position.

7. The steel structure construction sliding jacking device according to claim 6, characterized in that: The adjustment mechanism includes a lead screw (607) and a transmission assembly (702). A groove (610) is provided at the axis of the trolley platform (601). A lead screw (607) coaxial with the trolley platform (601) is provided in the groove (610). One end of the lead screw (607) is rotatably connected to the rotating base (609) inside the groove (610). The other end of the lead screw (607) is provided with an adjustment knob (608). The lower end face of the sliding plate (7) is provided with a transmission assembly (702) and is connected to the lead screw (607) for transmission.

8. The steel structure construction sliding jacking device according to claim 6, characterized in that: The side of the trolley platform (601) is engraved with a scale groove (606).

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