Rapid hoisting device for large-span steel bridge

Abstract

The utility model discloses a large span steel bridge fast hoisting device, including: base, first reinforcement cage hoisting mechanism and second reinforcement cage hoisting mechanism, the upper surface of base is fixedly connected with the support pillar, the upper surface of support pillar is fixedly connected with the connecting rod, the lower surface of connecting rod is fixedly connected with the first fixed rod, and the second fixed rod is fixedly connected with the second fixed rod. According to the steel reinforcement cage hoisting device, the weight of a steel reinforcement cage can be more evenly shared, shaking and inclination of the steel reinforcement cage in the hoisting process are reduced, the steel reinforcement cage is kept stable, the weight of the steel reinforcement cage is shared by a plurality of hoisting bars together, and the hoisting efficiency is improved. And moreover, the hanging bars are movable and can be flexibly adjusted according to the specific size and shape of the reinforcement cage, so that the hoisting device can better adapt to the reinforcement cages of different specifications, and the hoisting accuracy and reliability are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a rapid hoisting device for long-span steel bridges. Background Art

[0002] With the development of the construction industry and the promotion of building industrialization, the building construction technology has been gradually improved. The building construction gradually adopts the construction method of steel bar componentization. After the steel bridge is prefabricated in segments in advance and then transported to the site, the steel bridge is quickly hoisted on site, and then the integral assembly and connection are carried out on site. The steel reinforcement cage refers to the prefabricated steel structure during the construction of bridges, culverts, high-rise buildings, etc. It is mainly composed of main reinforcement bars, stirrups and other steel bars connected by welding or binding.

[0003] After retrieval, it is found that the technical solution provided by the utility model with the application number CN201920945506.8 includes a top plate. A support beam is welded on the top of the top plate, and a connecting sleeve is inserted on the top of the support beam. The connecting sleeve includes a connecting piece and a hook sleeve, and the connecting piece and the hook sleeve are connected by bolts. The bottom of the connecting piece is inserted on the top of the support beam. Four groups of columns are welded at the four corners of the lower surface of the top plate, and an electromagnet is installed in the center of the lower surface of the top plate. Two groups of connecting rails are symmetrically welded at the front and rear of the bottom of the column, and two groups of sliders are sleeved on each connecting rail. Two groups of rotating pages are symmetrically installed on the left and right by hinged connection between the front and rear two groups of sliders. This device adsorbs and hoists the steel reinforcement cage through the electromagnet, slides the slider and rotates the rotating page to block the steel reinforcement cage, avoiding the accidental detachment of the steel reinforcement cage during the hoisting process. However, the contact area between the rotating page and the steel reinforcement cage is relatively small, and the provided supporting and limiting effects are limited. It cannot effectively disperse the pressure and impact force generated by the steel reinforcement cage. The shaking generated during the hoisting process of the steel reinforcement cage easily causes the rotating page to deform or displace when stressed, thus losing the limiting effect. The steel reinforcement cage is not firmly blocked by setting the steel reinforcement cage limit on the slider, and the steel reinforcement cage may fall off the hoisting equipment. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a rapid hoisting device for long-span steel bridges. By setting two groups of steel reinforcement cage hoisting mechanisms, the lifting bars on the two groups of steel reinforcement cage hoisting structures can more evenly share the weight of the steel reinforcement cage, reduce the shaking and inclination of the steel reinforcement cage during hoisting, and keep it stable. Multiple lifting bars jointly share the weight of the steel reinforcement cage, reducing the risk of the steel reinforcement cage falling off. Moreover, the lifting bars are movable and can be flexibly adjusted according to the specific size and shape of the steel reinforcement cage, better adapting to different specifications of the steel reinforcement cage and ensuring the accuracy and reliability of hoisting.

[0005] To achieve the above object, the present utility model further provides a rapid hoisting device for a large-span steel bridge with the above-mentioned features, including: a base, a first steel cage hoisting mechanism and a second steel cage hoisting mechanism. The upper surface of the base is fixedly connected with a support column, the upper surface of the support column is fixedly connected with a connecting rod, the lower surface of the connecting rod is fixedly connected with a first fixing rod. There is a first groove inside the first fixing rod, the inner surface of the first groove is slidably connected with a first slider, the inner surface of the first slider is threadedly connected with a first bidirectional threaded rod, the right surface of the first fixing rod is fixedly connected with a first motor, the lower surface of the first slider is fixedly connected with a first hoisting bar. The second steel cage hoisting mechanism includes a second fixing rod, a second slider, a second bidirectional threaded rod, a second motor, and a second hoisting bar. There is a second groove inside the second fixing rod, the rear surface of the connecting rod is fixedly connected with the second fixing rod, the inner surface of the second groove is slidably connected with the second slider, and the lower end of the first hoisting bar is movably connected with a steel cage.

[0006] According to the rapid hoisting device for a large-span steel bridge, the first motor is electrically connected to an external power source, and the second motor is electrically connected to an external power source. By starting the first motor to drive the first bidirectional threaded rod to rotate, the distance between the first hoisting bars can be adjusted. By starting the second motor to drive the second bidirectional threaded rod to rotate, the distance between the second hoisting bars can be adjusted. Adjusting the distance between the first hoisting bar and the second hoisting bar can hoist steel cages of different sizes.

[0007] According to the rapid hoisting device for a large-span steel bridge, the inner surface of the second slider is threadedly connected with the second bidirectional threaded rod, and the output end of the second motor is fixedly connected with the second bidirectional threaded rod.

[0008] According to the rapid hoisting device for a large-span steel bridge, the lower end of the second hoisting bar is movably connected with the steel cage. The upper surface of the connecting rod is fixedly connected with a support, and the threaded hole on the support is connected to the steel bar. The steel cage can be lifted by hanging the hook on the steel wire rope.

[0009] According to the rapid hoisting device for a large-span steel bridge, the number of the first hoisting bars and the second hoisting bars is multiple. Multiple first hoisting bars and second hoisting bars can share the weight of the steel cage more evenly, reduce the shaking and tilting of the steel cage during hoisting, keep it stable, and multiple hoisting bars share the weight of the steel cage together, reducing the risk of the steel cage falling off.

[0010] According to the rapid hoisting device for a large-span steel bridge, a cylinder is fixedly connected to the inner surface of the base, and the cylinder is electrically connected to an external power source.

[0011] According to the described large-span steel bridge rapid hoisting device, an arc-shaped clamping plate is fixedly connected to the output end of the cylinder. The number of cylinders and arc-shaped clamping plates is multiple and they are distributed in a ring. By starting the cylinders, the arc-shaped clamping plates are driven to clamp the steel reinforcement cage, ensuring that the arc-shaped clamping plates firmly fix the steel reinforcement cage and preventing it from displacing or falling off during hoisting or construction, thereby enhancing the construction safety.

[0012] According to the described large-span steel bridge rapid hoisting device, the number of the first fixing rods is two and they are distributed front and back, and the number of the second fixing rods is two and they are distributed left and right.

[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 It is a schematic diagram of the overall structure of a large-span steel bridge rapid hoisting device of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the first fixing rod of a large-span steel bridge rapid hoisting device of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the second fixing rod of a large-span steel bridge rapid hoisting device of the present utility model;

[0018] Figure 4 It is a schematic diagram of a partial structure of a large-span steel bridge rapid hoisting device of the present utility model.

[0019] Legend Explanation:

[0020] 1. Base; 2. Support column; 3. Connecting rod; 4. First fixing rod; 5. First groove; 6. First slider; 7. First bidirectional threaded rod; 8. First motor; 9. First lifting bar; 10. Second fixing rod; 11. Second groove; 12. Second slider; 13. Second bidirectional threaded rod; 14. Second motor; 15. Second lifting bar; 16. Steel reinforcement cage; 17. Support; 18. Cylinder; 19. Arc-shaped clamping plate; 20. First steel reinforcement cage hoisting mechanism; 21. Second steel reinforcement cage hoisting mechanism. Detailed Embodiment

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0022] Refer to Figures 1-4, an embodiment of the utility model provides a rapid hoisting device for a long-span steel bridge, which includes: a base 1, a first steel reinforcement cage hoisting mechanism 20 and a second steel reinforcement cage hoisting mechanism 21. A support 17 is fixedly connected to the upper surface of the connecting rod 3. By connecting with a steel wire rope through the support 17 and lifting the hook on the steel wire rope, the steel reinforcement cage 16 can be lifted. A support column 2 is fixedly connected to the upper surface of the base 1. A connecting rod 3 is fixedly connected to the upper surface of the support column 2. A first fixing rod 4 is fixedly connected to the lower surface of the connecting rod 3. A first groove 5 is arranged inside the first fixing rod 4. A first slider 6 is slidably connected to the inner surface of the first groove 5. A first bidirectional threaded rod 7 is threadedly connected to the inner surface of the first slider 6. A first motor 8 is fixedly connected to the right surface of the first fixing rod 4. By starting the first motor 8, the output end of the first motor 8 rotates to drive the first bidirectional threaded rod 7 to rotate, and the first slider 6 on the first bidirectional threaded rod 7 moves in the opposite direction to adjust the distance between the first lifting bars 9 to a suitable position. The lower surface of the first slider 6 is fixedly connected to the first lifting bar 9. The distance between the first lifting bars 9 is adjusted according to the size of the steel reinforcement cage 16 to make the first lifting bars 9 fit the steel reinforcement cage 16, ensuring that the first lifting bars 9 are perpendicular to the ground when hoisting the steel reinforcement cage 16. The second steel reinforcement cage hoisting mechanism 21 includes a second fixing rod 10, a second slider 12, a second bidirectional threaded rod 13, a second motor 14, and a second lifting bar 15. A second groove 11 is arranged inside the second fixing rod 10. The rear surface of the connecting rod 3 is fixedly connected to the second fixing rod 10. The inner surface of the second groove 11 is slidably connected to the second slider 12. The inner surface of the second slider 12 is threadedly connected to the second bidirectional threaded rod 13. The output end of the second motor 14 is fixedly connected to the second bidirectional threaded rod 13. The lower end of the second lifting bar 15 is movably connected to the steel reinforcement cage 16. By starting the second motor 14, the second motor 14 rotates to drive the second bidirectional threaded rod 13 to rotate, and the second slider 12 on the second bidirectional threaded rod 13 moves in the opposite direction to a suitable position. The lower end of the first lifting bar 9 is movably connected to the steel reinforcement cage 16. By hanging the hooks under the first lifting bar 9 and the second lifting bar 15 on the steel reinforcement cage 16, the steel reinforcement cage 16 can be lifted. A cylinder 18 is fixedly connected to the inner surface of the base 1. The cylinder 18 is electrically connected to an external power source. The output end of the cylinder 18 is fixedly connected to an arc-shaped clamping plate 19. The number of the cylinder 18 and the arc-shaped clamping plate 19 is multiple and they are distributed annularly. Starting the cylinder 18 drives the arc-shaped clamping plate 19 to clamp the steel reinforcement cage 16, making the structure more stable, preventing it from displacing or falling off during hoisting or construction, and enhancing the safety of construction. The first motor 8 is electrically connected to an external power source. The second motor 14 is electrically connected to an external power source. The number of the first lifting bar 9 and the second lifting bar 15 is multiple. The number of the first fixing rod 4 is two and they are distributed front and back. The number of the second fixing rod 10 is two and they are distributed left and right.

[0023] Working principle: During use, adjust this structure directly above the steel reinforcement cage 16. According to the size of the steel reinforcement cage 16, adjust the distance between the first lifting bar 9 and the second lifting bar 15 on the first steel reinforcement cage hoisting mechanism 20 and the second steel reinforcement cage hoisting mechanism 21. Start the first motor 8, and the output end of the first motor 8 rotates to drive the first double-threaded rod 7 to rotate. The first sliders 6 on the first double-threaded rod 7 move in opposite directions to adjust the distance between the first lifting bars 9 to a suitable position. Start the second motor 14, and the second motor 14 rotates to drive the second double-threaded rod 13 to rotate. The second sliders 12 on the second double-threaded rod 13 move to a suitable position in the opposite direction, so that the first lifting bar 9 and the second lifting bar 15 are perpendicular to the ground and in contact with the steel reinforcement cage 16. Hang the hooks under the first lifting bar 9 and the second lifting bar 15 on the steel reinforcement cage 16. Start the cylinder 18 to drive the arc-shaped clamping plate 19 to clamp the steel reinforcement cage 16. This structure is connected to the steel wire rope through the support 17. Lift the hook on the steel wire rope, and the steel reinforcement cage 16 can be lifted. The first lifting bar 9 and the second lifting bar 15 on the first steel reinforcement cage hoisting mechanism 20 and the second steel reinforcement cage hoisting mechanism 21 of this device can share the weight of the steel reinforcement cage 16 more evenly, reduce the shaking and inclination of the steel reinforcement cage 16 during hoisting, and keep it stable. Multiple first lifting bars 9 and second lifting bars 15 share the weight of the steel reinforcement cage 16 together, reducing the risk of the steel reinforcement cage 16 falling off. Moreover, the first lifting bar 9 and the second lifting bar 15 are movable and can be flexibly adjusted according to the specific size and shape of the steel reinforcement cage 16, better adapting to steel reinforcement cages 16 of different specifications and ensuring the accuracy and reliability of hoisting.

[0024] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the said technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A fast hoisting device for a long-span steel bridge, characterized in that: include: A base (1), a first steel cage hoisting mechanism (20) and a second steel cage hoisting mechanism (21), wherein the upper surface of the base (1) is fixedly connected to a support column (2), the upper surface of the support column (2) is fixedly connected to a connecting rod (3), the lower surface of the connecting rod (3) is fixedly connected to a first fixing rod (4), a first groove (5) is provided inside the first fixing rod (4), a first slider (6) is slidably connected to the inner surface of the first groove (5), a first bidirectional threaded rod (7) is threadedly connected to the inner surface of the first slider (6), a first motor (8) is fixedly connected to the right surface of the first fixing rod (4), and a first hanging rod (9) is fixedly connected to the lower surface of the first slider (6); The second steel cage hoisting mechanism (21) comprises a second fixed rod (10), a second sliding block (12), a second bidirectional threaded rod (13), a second motor (14), and a second hanging rod (15); a second groove (11) is provided inside the second fixed rod (10); the rear surface of the connecting rod (3) is fixedly connected to the second fixed rod (10); the inner surface of the second groove (11) is slidably connected to the second sliding block (12); and the lower end of the first hanging rod (9) is movably connected to the steel cage (16).

2. A fast hoisting device for a long-span steel bridge according to claim 1, characterized in that: The first motor (8) is electrically connected to an external power source, and the second motor (14) is electrically connected to an external power source.

3. The fast hoisting device for a long-span steel bridge according to claim 1 is characterized in that: The inner surface of the second sliding block (12) is threadedly connected to the second bidirectional threaded rod (13), and the output end of the second motor (14) is fixedly connected to the second bidirectional threaded rod (13).

4. The fast hoisting device for a long-span steel bridge according to claim 1 is characterized in that: The lower end of the second suspension bar (15) is movably connected to the steel cage (16), and the upper surface of the connecting rod (3) is fixedly connected to a support (17).

5. The fast hoisting device for a long-span steel bridge according to claim 1 is characterized in that: The number of the first suspension ribs (9) and the number of the second suspension ribs (15) are multiple.

6. The fast hoisting device for a long-span steel bridge according to claim 1 is characterized in that: A cylinder (18) is fixedly connected to the inner surface of the base (1), and the cylinder (18) is electrically connected to an external power source.

7. The fast hoisting device for a long-span steel bridge according to claim 6 is characterized in that: The output end of the cylinder (18) is fixedly connected to an arc-shaped clamping plate (19), and the cylinder (18) and the arc-shaped clamping plate (19) are multiple in number and distributed in an annular manner.

8. The fast hoisting device for a long-span steel bridge according to claim 1 is characterized in that: The number of the first fixing rods (4) is two and they are distributed front to back, and the number of the second fixing rods (10) is two and they are distributed left to right.

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