An ultra-high boiler steel frame hoisting device

Abstract

The application discloses a kind of superhigh boiler steel frame hoisting devices, it is related to superhigh boiler steel frame hoisting technical field, including placement frame;The outside of the placement frame is fixedly connected with driving equipment by arc block;The output end of the driving equipment is equipped with multiple two-way threaded shafts;The outside of the multiple two-way threaded shafts is threadedly connected with multiple pairs of clamping plates, and multiple pairs of clamping plates are all slidably connected with placement frame, the beam in multiple superhigh boiler steel frames is placed in placement frame in the application, driving equipment drives multiple two-way threaded shafts to rotate, so that multiple pairs of clamping plates move to multiple beams respectively, and multiple beams are clamped and fixed, because the application is accommodated multiple beams by placement frame and fixed, reduces hoisting cycle frequency, improves the hoisting efficiency of same specification batch beam, and because placement frame encloses multiple beams, it avoids mutual collision and friction between beams, so that beam is more stable, safe when hoisting.

Description

Technical Field

[0001] This invention relates to the field of ultra-high boiler steel frame hoisting technology, and in particular to an ultra-high boiler steel frame hoisting device. Background Technology

[0002] Ultra-high-pressure boilers generally refer to large-capacity suspended pulverized coal boilers with supercritical and ultra-supercritical parameters. They are the core main equipment of high-efficiency thermal power generating units. The boiler steel frame is the load-bearing foundation skeleton of the ultra-high-pressure boiler. It not only bears the static weight of all components of the boiler body, but also has to withstand the thermal load and vibration load during operation. Because the ultra-high-pressure boiler steel frame includes a large number of columns, beams and diagonal braces, it is necessary to use a tower crane to hoist it to the designated location for installation.

[0003] Currently, when hoisting the crossbeams in the steel frame of ultra-high boilers, most methods involve lifting them one by one or simply binding multiple beams together. Single beam hoisting requires repeated lifting, positioning, and lowering, resulting in high frequency and low efficiency. Conventional binding multiple beam hoisting lacks rigid protection and fixing structures, making the crossbeams prone to relative slippage and lateral collisions during hoisting, causing damage to the anti-corrosion layer and flange deformation. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current ultra-high boiler steel frame hoisting device, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an ultra-high boiler steel frame hoisting device, which is suitable for solving the problem that single-frame hoisting requires repeated lifting, positioning, and lowering, resulting in high operation frequency and low efficiency. Conventional bundled multi-frame hoisting lacks rigid protection and fixing structure, making the crossbeams prone to relative slippage and lateral collision during hoisting, causing damage to the anti-corrosion layer and flange deformation of the components.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an ultra-high boiler steel frame hoisting device, including a placement frame; a driving device is fixedly connected to the outer side of the placement frame by an arc-shaped block; the output end of the driving device is provided with a multi-segment bidirectional threaded shaft; the outer side of the multi-segment bidirectional threaded shaft is threadedly connected to a multi-pair clamping plate, and the multi-pair clamping plate is slidably connected to the placement frame.

[0008] As a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, wherein: the outer top of the placement frame is rotatably connected to a pair of first multi-segment bidirectional threaded rods via a pair of connecting blocks; the multi-segment bidirectional threaded shaft is connected to the pair of first multi-segment bidirectional threaded rods via sprockets and chains; the outer threads of the first multi-segment bidirectional threaded rods are connected to multiple pairs of fixing plates, and the multiple pairs of fixing plates are slidably connected to the placement frame.

[0009] In a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, a set of first helical gears is fixedly connected to the outer side of the multi-segment bidirectional threaded shaft and the pair of first multi-segment bidirectional threaded rods; a set of second threaded rods are rotatably connected to the outer top of the placement frame through a set of connecting plates; a second helical gear is fixedly connected to the top of each set of second threaded rods, and the set of second helical gears meshes with the set of first helical gears respectively; a threaded block is threadedly connected to the outer side of the second threaded rod, and the outer side of the threaded block is in contact with the outer side of the placement frame; a lower pressure plate is fixedly connected to the bottom outer side of the threaded block.

[0010] As a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, the lower pressure plate includes a plate body and a lower pressure rod; the outer side of a set of lower pressure rods is slidably connected to the inner side of the plate body; a set of springs is fixedly connected to the top outer side of the plate body, and the set of springs is fixedly connected to the set of lower pressure rods respectively; a rubber ball is fixedly connected to the bottom outer side of the lower pressure rod; a damper is provided at the spring.

[0011] As a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, a motor is fixedly connected to the outer side of the placement frame by a fixing block; a rotating shaft is provided at the output end of the motor; a conveying roller is fixedly connected to the outer side of the rotating shaft; and the conveying roller is located in front of the placement frame.

[0012] As a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, a set of auxiliary rollers is rotatably connected to the inner bottom end of the placement frame; the set of auxiliary rollers is respectively located between a multi-segment bidirectional threaded shaft and a pair of first multi-segment bidirectional threaded rods; the auxiliary rollers are engaged with the conveying rollers.

[0013] In a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, the outer side of the placement frame is rotatably connected to a third threaded rod via a first block; the outer side of the third threaded rod is threadedly connected to a placement plate, and the outer side of the placement plate is in contact with the outer side of the placement frame; the outer side of the placement plate is rotatably connected to a rotating rod; and a set of downward pressure rollers is fixedly connected to the outer side of the rotating rod.

[0014] As a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, the outer side of the placement plate is rotatably connected to a fifth multi-segment bidirectional threaded rod; the outer side of the fifth multi-segment bidirectional threaded rod is threadedly connected to multiple pairs of limiting plates, and the multiple pairs of limiting plates are respectively located on both sides of a set of lower pressure rollers; the inner side of the limiting plate is in contact with the outer side of the rotating rod.

[0015] As a preferred embodiment of the ultra-high boiler steel frame hoisting device of the present invention, a set of square plates is fixedly connected to the outer side of the placement frame; a hydraulic cylinder is fixedly connected to the top outer side of the square plate; a hoisting plate is fixedly connected to the top outer side of the set of hydraulic cylinders; and a set of hoisting hooks is fixedly connected to the corner of the top outer side of the hoisting plate.

[0016] The beneficial effects of this invention are: 1. By placing multiple crossbeams from the ultra-high boiler steel frame into the placement frame, the drive equipment rotates multiple bidirectional threaded shafts, causing multiple pairs of clamping plates to move toward the multiple crossbeams until the multiple crossbeams are clamped and fixed. Because this application accommodates and fixes multiple crossbeams at once through the placement frame, the number of hoisting cycles is reduced, the hoisting efficiency of batches of crossbeams of the same specification is improved, and because the placement frame encloses multiple crossbeams, it avoids mutual collision and friction between the crossbeams, thereby reducing the risk of swaying and eccentric loading of the crossbeams at high altitudes, making the hoisting of the crossbeams more stable and safe. 2. The rotation of multiple bidirectional threaded shafts and a pair of first multi-segment bidirectional threaded rods drives the rotation of multiple sets of first helical gears. Since multiple sets of second helical gears mesh with multiple sets of first helical gears respectively, the rotation of the first helical gears drives the rotation of the second helical gears, thereby driving the rotation of the second threaded rods. Since the second threaded rods are threadedly connected to the threaded blocks, and the threaded blocks are limited by the placement frame, the rotation of the second threaded rods causes the threaded blocks to move downwards, causing the threaded blocks to drive the lower pressure plate to move downwards. This, in conjunction with the bottom of the inner side of the placement frame, clamps and fixes the crossbeam from the top and bottom. With the help of the clamping plate and the fixing plate, the stability of the crossbeam hoisting is further enhanced, and the vertical displacement of the crossbeam during the hoisting process is effectively suppressed.

[0017] 3. By fixing the ropes on the crane to a set of lifting hooks, and then adjusting the height of the frame by means of hydraulic cylinders, the crane is responsible for large-scale vertical height adjustment, while the hydraulic cylinders are responsible for small-scale vertical height adjustment, thereby achieving fine adjustment of the beam lifting position and improving the positioning accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is a partial structural diagram of the main body of the present invention; Figure 3 This is a structural diagram of the second threaded rod, threaded block, and lower pressure plate of the present invention; Figure 4 This is a structural diagram of the lower pressure plate of the present invention; Figure 5 This is a structural diagram of the placement frame and auxiliary roller of the present invention; Figure 6 This is a structural diagram of the motor, rotating shaft, and conveying roller of the present invention; Figure 7 This is a structural diagram of the placement plate, the lower pressure roller, and the limiting plate of the present invention; Figure Descriptions: 1. Placement frame; 2. Drive device; 3. Multi-segment bidirectional threaded shaft; 4. Clamping plate; 5. First multi-segment bidirectional threaded rod; 6. Sprocket; 7. Chain; 8. Fixing plate; 9. First helical gear; 10. Second threaded rod; 11. Second helical gear; 12. Threaded block; 13. Lower pressure plate; 131. Plate body; 132. Lower pressure rod; 133. Spring; 134. Rubber ball; 14. Motor; 15. Rotating shaft; 16. Conveying roller; 17. Auxiliary roller; 18. Third threaded rod; 19. Placement plate; 20. Rotating rod; 21. Lower pressure roller; 22. Fifth multi-segment bidirectional threaded rod; 23. Limiting plate; 24. Square plate; 25. Hydraulic cylinder; 26. Lifting plate; 27. Lifting hook. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0023] Example 1: Reference Figure 1 - Figure 7 In one embodiment of the present invention, an ultra-high boiler steel frame hoisting device is provided, including a placement frame 1; a driving device 2 is fixed to the outside of the placement frame 1 by an arc-shaped block; the output end of the driving device 2 is provided with a multi-segment bidirectional threaded shaft 3; the outside of the multi-segment bidirectional threaded shaft 3 is threadedly connected to multiple pairs of clamping plates 4, and the multiple pairs of clamping plates 4 are all slidably connected to the placement frame 1.

[0024] By placing the crossbeams of multiple ultra-high boiler steel frames inside the placement frame 1, the drive device 2 drives multiple bidirectional threaded shafts 3 to rotate, causing multiple pairs of clamping plates 4 to move toward the multiple crossbeams until the multiple crossbeams are clamped and fixed. Because this application accommodates and fixes multiple crossbeams at once through the placement frame 1, the number of hoisting cycles is reduced, and the hoisting efficiency of batches of crossbeams of the same specification is improved. Furthermore, because the placement frame 1 encloses multiple crossbeams, it prevents them from colliding and rubbing against each other, thereby reducing the risk of swaying and eccentric loading of the crossbeams at high altitudes, making the hoisting of the crossbeams more stable and safe.

[0025] A set of square plates 24 are fixed to the outer side of the frame 1; a hydraulic cylinder 25 is fixed to the top outer side of the square plate 24; a lifting plate 26 is fixed to the top outer side of the set of hydraulic cylinders 25; and a set of lifting hooks 27 are fixed to the corner of the top outer side of the lifting plate 26.

[0026] By fixing the ropes on the crane to a set of lifting hooks 27, and then adjusting the height of the placement frame 1 by the hydraulic cylinder 25, the crane is responsible for large-scale vertical height adjustment, while the hydraulic cylinder 25 is responsible for small-scale vertical height adjustment, thereby achieving fine adjustment of the beam lifting position and improving the positioning accuracy.

[0027] A motor 14 is fixedly connected to the outside of the placement frame 1 by a fixing block; the output end of the motor 14 is provided with a rotating shaft 15; a conveying roller 16 is fixedly connected to the outside of the rotating shaft 15; the conveying roller 16 is located in front of the placement frame 1.

[0028] The motor 14 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the conveying roller 16 to rotate. When the crossbeam is ready to be placed into the placement frame 1, the rotation of the conveying roller 16 makes it easier for the crossbeam to enter the placement frame 1, thereby reducing the labor intensity of manual pushing and improving the smoothness of crossbeam feeding. The surface of the conveying roller 16 is provided with anti-slip texture, which effectively prevents the crossbeam from slipping or deviating during the conveying process and ensures that it falls into the predetermined position in the placement frame 1.

[0029] The outer top of the placement frame 1 is rotatably connected to a pair of first multi-segment bidirectional threaded rods 5 via a pair of connecting blocks; the multi-segment bidirectional threaded shaft 3 is connected to the pair of first multi-segment bidirectional threaded rods 5 via sprockets 6 and chains 7; the outer threads of the first multi-segment bidirectional threaded rods 5 are connected to multiple pairs of fixing plates 8, and all pairs of fixing plates 8 are slidably connected to the placement frame 1.

[0030] The rotation of the multi-segment bidirectional threaded shaft 3 drives a pair of first multi-segment bidirectional threaded rods 5 to rotate via the sprocket 6 and chain 7. This causes the clamping plate 4 to clamp and fix multiple crossbeams, while the fixing plate 8 also fixes them. This results in multiple parts of the crossbeam being clamped and fixed, thereby further improving the stability of the crossbeam hoisting. The clamping plate 4 and the fixing plate 8 also work together at multiple points along the length of the crossbeam to effectively disperse local stress concentration and avoid indentations or structural damage to the crossbeam surface caused by single-point clamping.

[0031] A set of auxiliary rollers 17 is rotatably connected to the inner bottom of the placement frame 1; the set of auxiliary rollers 17 is located between the multi-segment bidirectional threaded shaft 3 and a pair of first multi-segment bidirectional threaded rods 5; the auxiliary rollers 17 are matched with the conveying rollers 16.

[0032] A set of auxiliary rollers 17 is rotatably connected to the inner bottom end of the placement frame 1. When the crossbeam enters the placement frame 1 through the conveyor roller 16, the crossbeam presses on the set of auxiliary rollers 17. As the crossbeam moves, it drives the auxiliary rollers 17 to move, reducing the friction of the crossbeam entering the placement frame 1. The surface of the auxiliary rollers 17 is covered with wear-resistant elastic material, which effectively protects the anti-corrosion coating of the lower flange of the crossbeam from scratches while reducing frictional resistance.

[0033] A set of first helical gears 9 are fixedly connected to the outer side of the multi-segment bidirectional threaded shaft 3 and a pair of first multi-segment bidirectional threaded rods 5; the outer top of the placement frame 1 is rotatably connected to multiple sets of second threaded rods 10 through multiple sets of connecting plates; the top of each set of second threaded rods 10 is fixedly connected to a second helical gear 11, and the multiple sets of second helical gears 11 respectively mesh with multiple sets of first helical gears 9; the outer side of the second threaded rod 10 is threadedly connected to a threaded block 12, and the outer side of the threaded block 12 is in contact with the outer side of the placement frame 1; the bottom outer end of the threaded block 12 is fixedly connected to a lower pressure plate 13.

[0034] The rotation of the multi-segment bidirectional threaded shaft 3 and a pair of first multi-segment bidirectional threaded rods 5 drives the rotation of multiple sets of first helical gears 9. Because multiple sets of second helical gears 11 mesh with multiple sets of first helical gears 9 respectively, the rotation of the first helical gears 9 drives the rotation of the second helical gears 11, thereby driving the rotation of the second threaded rod 10. Since the second threaded rod 10 is threadedly connected to the threaded block 12 and the threaded block 12 is limited by the placement frame 1, the rotation of the second threaded rod 10 causes the threaded block 12 to move downward, causing the threaded block 12 to drive the lower pressure plate 13 to move downward. Together with the inner bottom end of the placement frame 1, the crossbeam is clamped and fixed from the top and bottom. Together with the clamping plate 4 and the fixing plate 8, the stability of the crossbeam hoisting is further enhanced, and the vertical displacement of the crossbeam during the hoisting process is effectively suppressed.

[0035] A third threaded rod 18 is rotatably connected to the outer side of the placement frame 1 via a first block; a placement plate 19 is threadedly connected to the outer side of the third threaded rod 18, and the outer side of the placement plate 19 is in contact with the outer side of the placement frame 1; a rotating rod 20 is rotatably connected to the outer side of the placement plate 19; a set of lower pressure rollers 21 are fixedly connected to the outer side of the rotating rod 20.

[0036] By rotating the third threaded rod 18, the placement plate 19 is moved downwards, which in turn moves the rotating rod 20 and the lower pressure roller 21 downwards. The lower pressure roller 21, in conjunction with the conveying roller 16, clamps the crossbeam, increasing the friction between the surface of the conveying roller 16 and the crossbeam. This ensures that the crossbeam remains stable during the feeding process and prevents it from tilting or shifting due to gravity or inertia. At the same time, the clamping gap formed by the lower pressure roller 21 and the conveying roller 16 can be finely adjusted by adjusting the third threaded rod 18 according to the crossbeam cross section height to meet the conveying requirements of crossbeams of different specifications.

[0037] The lower pressure plate 13 includes a plate body 131 and a lower pressure rod 132; the outer side of a set of lower pressure rods 132 is slidably connected to the inner side of the plate body 131; a set of springs 133 are fixedly connected to the top outer side of the plate body 131, and the set of springs 133 are respectively fixedly connected to the set of lower pressure rods 132; a rubber ball 134 is fixedly connected to the bottom outer side of the lower pressure rod 132; a damper is provided at the spring 133.

[0038] The pressure plate 13, including the plate body 131 and the pressure rod 132, moves downward to prepare to fix the crossbeam. The rubber ball 134 on the pressure rod 132 first contacts the crossbeam. As the pressure plate 13 continues to move downward, the pressure rod 132 compresses the spring 133, causing the spring 133 to extend and absorb the impact energy during the pressing process. At the same time, the damper buffers and controls the rebound of the spring 133 to avoid damage to the surface of the crossbeam due to rigid contact. The rubber ball 134, with its elastic deformation ability, can adapt to the slight unevenness of the upper flange of the crossbeam, ensuring uniform pressure distribution and further improving the clamping fit and stability.

[0039] Example 2: Reference Figure 7 The difference from Embodiment 1 is that: the outer side of the placement plate 19 is rotatably connected to a fifth multi-segment bidirectional threaded rod 22; the outer side of the fifth multi-segment bidirectional threaded rod 22 is threadedly connected to multiple pairs of limiting plates 23, and the multiple pairs of limiting plates 23 are respectively located on both sides of a set of lower pressure rollers 21; the inner side of the limiting plate 23 is in contact with the outer side of the rotating rod 20.

[0040] By rotating the fifth multi-segment bidirectional threaded rod 22, multiple pairs of limiting plates 23 are moved closer to a set of lower pressure rollers 21, thereby limiting multiple crossbeams and preventing them from shifting their positions when entering the placement frame 1. This ensures that multiple crossbeams advance synchronously along a predetermined trajectory during the conveying process, avoiding jamming or misalignment caused by lateral displacement. The inner side of the limiting plate 23 is provided with a buffer pad layer, which reduces the risk of surface damage caused by rigid contact while constraining the crossbeams.

[0041] Working principle: First, the ropes on the crane are fixed to a set of lifting hooks 27. Then, the height of the frame 1 is adjusted by the hydraulic cylinder 25. At this time, the crane is responsible for large-scale vertical height adjustment, while the hydraulic cylinder 25 is responsible for small-scale vertical height adjustment, so as to achieve fine adjustment of the beam lifting position and improve the positioning accuracy.

[0042] Secondly, after the position of the placement frame 1 is adjusted, the crossbeams of multiple ultra-high boiler steel frames are placed inside the placement frame 1. At this time, the drive device 2 drives multiple bidirectional threaded shafts 3 to rotate, causing multiple pairs of clamping plates 4 to move toward the multiple crossbeams until the multiple crossbeams are clamped and fixed. Because this application accommodates and fixes multiple crossbeams at one time through the placement frame 1, the number of hoisting cycles is reduced, the hoisting efficiency of crossbeams of the same specification in batches is improved, and because the placement frame 1 protects the multiple crossbeams, it prevents the crossbeams from colliding and rubbing against each other.

[0043] Furthermore, as the multi-segment bidirectional threaded shaft 3 rotates, it drives a pair of first multi-segment bidirectional threaded rods 5 to rotate through the sprocket 6 and chain 7. This causes the clamping plate 4 to clamp and fix multiple crossbeams, while the fixing plate 8 also fixes them. This results in multiple parts of the crossbeam being clamped and fixed, thereby further improving the stability of the crossbeam hoisting. Moreover, the clamping plate 4 and the fixing plate 8 work together at multiple points along the length of the crossbeam to effectively disperse local stress concentration and avoid indentations or structural damage to the crossbeam surface caused by single-point clamping.

[0044] The rotation of the multi-segment bidirectional threaded shaft 3 and a pair of first multi-segment bidirectional threaded rods 5 simultaneously drives the rotation of multiple sets of first helical gears 9. Since multiple sets of second helical gears 11 mesh with multiple sets of first helical gears 9 respectively, the rotation of the first helical gears 9 drives the rotation of the second helical gears 11, thereby driving the rotation of the second threaded rod 10. Because the second threaded rod 10 is threadedly connected to the threaded block 12, and the threaded block 12 is limited by the placement frame 1, the rotation of the second threaded rod 10 causes the threaded block 12 to move downwards, causing the threaded block 12 to drive the lower pressure plate 13 to move downwards. This, combined with the inner bottom end of the placement frame 1, clamps and fixes the crossbeam from the top and bottom directions. The clamping plate 4 and fixing plate 8 further enhance the stability of the crossbeam hoisting. The vertical displacement of the crossbeam during hoisting is effectively suppressed. The lower pressure plate 13, including the plate body 131 and the lower pressure rod 132, moves downward to prepare to fix the crossbeam. The rubber ball 134 on the lower pressure rod 132 first contacts the crossbeam. As the lower pressure plate 13 continues to move downward, the lower pressure rod 132 compresses the spring 133, causing the spring 133 to extend and absorb the impact energy during the downward pressing process. At the same time, the damper buffers and controls the rebound of the spring 133 to avoid damage to the surface of the crossbeam due to rigid contact. The rubber ball 134, with its elastic deformation ability, can adapt to the slight unevenness of the upper flange of the crossbeam, ensuring uniform pressure distribution and further improving the clamping fit and stability.

[0045] Secondly, when the crossbeam is fed into the placement frame 1, the motor 14 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the conveying roller 16 to rotate. When the crossbeam is ready to be placed into the placement frame 1, the rotation of the conveying roller 16 makes it easier for the crossbeam to enter the placement frame 1, thereby reducing the labor intensity of manual pushing and improving the smoothness of crossbeam feeding. The surface of the conveying roller 16 is provided with anti-slip texture, which effectively prevents the crossbeam from slipping or deviating during the conveying process and ensures that it falls into the predetermined position in the placement frame 1.

[0046] Furthermore, an auxiliary roller 17 is rotatably connected to the inner bottom end of the placement frame 1. When the crossbeam enters the placement frame 1 through the conveyor roller 16, the crossbeam presses against the auxiliary roller 17. As the crossbeam moves, it drives the auxiliary roller 17 to move, reducing the friction of the crossbeam entering the placement frame 1. The surface of the auxiliary roller 17 is covered with a wear-resistant elastic material, which effectively protects the anti-corrosion coating of the lower flange of the crossbeam from scratches while reducing frictional resistance.

[0047] Furthermore, by rotating the third threaded rod 18, the third threaded rod 18 drives the placement plate 19 to move downward, which in turn drives the rotating rod 20 and the lower pressure roller 21 to move downward. The lower pressure roller 21, in conjunction with the conveying roller 16, clamps the crossbeam, increasing the friction between the surface of the conveying roller 16 and the crossbeam. This ensures that the crossbeam remains stable during the feeding process and prevents it from tilting or shifting due to gravity or inertia. At the same time, the clamping gap formed by the lower pressure roller 21 and the conveying roller 16 can be finely adjusted by adjusting the third threaded rod 18 according to the crossbeam cross section height to adapt to the conveying requirements of crossbeams of different specifications.

[0048] Finally, by rotating the fifth multi-segment bidirectional threaded rod 22, multiple pairs of limiting plates 23 are moved closer to a set of lower pressure rollers 21, thereby limiting multiple crossbeams and preventing them from shifting their positions when entering the placement frame 1. This ensures that multiple crossbeams advance synchronously along a predetermined trajectory during the conveying process, avoiding jamming or misalignment caused by lateral displacement. The inner side of the limiting plate 23 is provided with a buffer pad layer, which reduces the risk of surface damage caused by rigid contact while constraining the crossbeams.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hoisting device for an ultra-high boiler steel frame, comprising a placement frame (1); characterized in that, The outer side of the placement frame (1) is fixed with a drive device (2) by an arc block; the output end of the drive device (2) is provided with a multi-segment bidirectional threaded shaft (3); the outer side of the multi-segment bidirectional threaded shaft (3) is threaded with multiple pairs of clamping plates (4), and the multiple pairs of clamping plates (4) are all slidably connected to the placement frame (1).

2. The ultra-high boiler steel frame hoisting device according to claim 1, characterized in that: The outer top of the placement frame (1) is rotatably connected to a pair of first multi-segment bidirectional threaded rods (5) via a pair of connecting blocks; the multi-segment bidirectional threaded shaft (3) is connected to the pair of first multi-segment bidirectional threaded rods (5) via sprockets (6) and chains (7); the outer side of the first multi-segment bidirectional threaded rods (5) is threaded with multiple pairs of fixing plates (8), and the multiple pairs of fixing plates (8) are slidably connected to the placement frame (1).

3. The ultra-high boiler steel frame hoisting device according to claim 2, characterized in that: A set of first helical gears (9) are fixedly connected to the outer sides of the multi-segment bidirectional threaded shaft (3) and a pair of first multi-segment bidirectional threaded rods (5); the outer top of the placement frame (1) is rotatably connected to a set of second threaded rods (10) through a set of connecting plates; the top of the set of second threaded rods (10) is fixedly connected to a second helical gear (11), and the set of second helical gears (11) meshes with the set of first helical gears (9) respectively; the outer side of the second threaded rod (10) is threadedly connected to a threaded block (12), and the outer side of the threaded block (12) is in contact with the outer side of the placement frame (1); the outer bottom end of the threaded block (12) is fixedly connected to a lower pressure plate (13).

4. The ultra-high boiler steel frame hoisting device according to claim 3, characterized in that: The lower pressure plate (13) includes a plate body (131) and a lower pressure rod (132); the outer side of a set of lower pressure rods (132) is slidably connected to the inner side of the plate body (131); a set of springs (133) is fixedly connected to the top outer side of the plate body (131), and the set of springs (133) is fixedly connected to the set of lower pressure rods (132); a rubber ball (134) is fixedly connected to the bottom outer side of the lower pressure rod (132); a damper is provided at the spring (133).

5. The ultra-high boiler steel frame hoisting device according to claim 1, characterized in that: A motor (14) is fixedly connected to the outside of the placement frame (1) by a fixing block; the output end of the motor (14) is provided with a rotating shaft (15); a conveying roller (16) is fixedly connected to the outside of the rotating shaft (15); the conveying roller (16) is located in front of the placement frame (1).

6. The ultra-high boiler steel frame hoisting device according to claim 5, characterized in that: A set of auxiliary rollers (17) is rotatably connected to the inner bottom of the placement frame (1); the set of auxiliary rollers (17) is located between the multi-segment bidirectional threaded shaft (3) and a pair of first multi-segment bidirectional threaded rods (5); the auxiliary rollers (17) are in contact with the conveying rollers (16).

7. The ultra-high boiler steel frame hoisting device according to claim 6, characterized in that: The outer side of the placement frame (1) is rotatably connected to a third threaded rod (18) via a first block; the outer side of the third threaded rod (18) is threadedly connected to a placement plate (19), and the outer side of the placement plate (19) is in contact with the outer side of the placement frame (1); the outer side of the placement plate (19) is rotatably connected to a rotating rod (20); a set of lower pressure rollers (21) are fixedly connected to the outer side of the rotating rod (20).

8. The ultra-high boiler steel frame hoisting device according to claim 7, characterized in that: The outer side of the placement plate (19) is rotatably connected to a fifth multi-segment bidirectional threaded rod (22); the outer side of the fifth multi-segment bidirectional threaded rod (22) is threadedly connected to multiple pairs of limiting plates (23), and the multiple pairs of limiting plates (23) are respectively located on both sides of a set of lower pressure rollers (21); the inner side of the limiting plate (23) is in contact with the outer side of the rotating rod (20).

9. The ultra-high boiler steel frame hoisting device according to claim 1, characterized in that: A set of square plates (24) are fixed to the outside of the placement frame (1); a hydraulic cylinder (25) is fixed to the top of the outside of the square plate (24); a lifting plate (26) is fixed to the top of the outside of the set of hydraulic cylinders (25); a set of lifting hooks (27) is fixed to the corner of the top of the outside of the lifting plate (26).

Images