Support frame for overhauling vertical fan

Abstract

The utility model discloses a support frame for overhauling a vertical fan. The support frame comprises support legs and a placement table, the containing table is in a ring shape and is supported by the supporting legs, the containing table is defined by connecting a plurality of supporting beams end to end, and a containing space for containing the vertical fan is formed in the center of the containing table. A supporting plate of the vertical fan is placed on the supporting beam, and an impeller of the vertical fan is contained in the containing space. A cutting opening is further formed in the containing space defined by the supporting beams, the cutting opening and the containing space are matched to jointly contain an impeller of the vertical fan, and the cutting opening is located in the supporting beams and formed by cutting the supporting beams. A supporting plate is arranged below the containing space and arranged on the lower side of the supporting beam through a length-adjustable lead screw. A dismounting hole is formed in the supporting plate, and a construction tool can penetrate through the dismounting hole to dismount the impeller from the vertical fan. The utility model provides stable support for the maintenance of the vertical fan, and is convenient for temporary placement, maintenance and transfer.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and specifically to a support frame for the maintenance of vertical fans. Background Technology

[0002] In steel plants, equipment operates continuously and requires regular maintenance, upkeep, and replacement of fans after a certain period of use. During these maintenance and replacement processes, if the hoisted fans are dropped directly onto the ground, it can easily damage the impeller or cause imbalance, and it is also inconvenient to transport them to the maintenance provider.

[0003] In existing technologies, temporary supports are generally used to support vertical fans. However, the distance of these temporary supports is difficult to control during installation, and they are prone to displacement and deformation when the fan is repeatedly removed and placed, requiring constant adjustments and affecting replacement efficiency. Moreover, temporary supports have poor stability during transportation, posing significant safety hazards and making it difficult to ensure the vertical fan is securely fixed during transport. On the other hand, it is not easy to disassemble the fan impeller during inspection and maintenance.

[0004] Therefore, how to provide temporary support for vertical fans during replacement and maintenance, while facilitating fan inspection and repair, is a problem that urgently needs to be solved. Utility Model Content

[0005] The purpose of this application is to solve the problem of where to place vertical fans during maintenance in the prior art. Therefore, this utility model provides a support frame for maintenance of vertical fans, including support legs and a placement platform supported by the support legs.

[0006] The placement platform is circular, formed by multiple supporting beams connected end to end, and has a placement space in the center to accommodate the vertical fan.

[0007] The support plate of the vertical fan is placed on the support beam, and the impeller of the vertical fan is accommodated in the placement space;

[0008] The placement space enclosed by the support beam also includes a cutting opening, which cooperates with the placement space to accommodate the impeller of the vertical fan. The cutting opening is located on the support beam and is formed by cutting the support beam.

[0009] A support plate is also provided below the placement space. The support plate is set on the lower side of the support beam by a screw with adjustable length. The support plate has a disassembly hole, through which construction tools can pass to remove the impeller from the vertical fan.

[0010] It should be noted beforehand that vertical fans have impellers located at the bottom of the fan. These impellers are relatively fragile and prone to deformation under significant pressure. If the vertical fan is placed directly on the ground, the weight of the entire fan can easily damage the impeller, affecting its normal operation. A support plate is located above the impeller. During lifting and transporting the vertical fan, the impeller is typically fixed to this support plate to prevent stress on the impeller. Therefore, this application also uses support beams to secure the support plate, thus suspending the fragile impeller in the air.

[0011] The above technical solution uses a support beam to form a circle, which is a placement space that can accommodate the impeller of the vertical fan. The size of the placement space should be slightly larger than the impeller of the vertical fan. In addition, the size of the circle should be smaller than the support plate, so that the support plate can be placed on the support beam. After the support plate is placed on the support beam, the impeller below the support plate will enter the placement space. Since there are support legs under the support beam, the impeller of the entire vertical fan is suspended in the air, thus protecting the impeller.

[0012] By adopting the above technical solution, the shape of the placement space enclosed by the support beam can be better matched with the shape of the impeller through the setting of the cutting opening, which is more conducive to the placement of the impeller and makes it easier for the support beam to support the impeller. On the other hand, from a manufacturing point of view, if the circle enclosed by the support beam is too large, it will result in an excessively large placement space in the center, leading to an insufficient contact area between the support plate and the support beam, affecting the stability of the support, and may even cause the placement space to be larger than the support plate, making it impossible for the support plate to be supported on the support beam. If the circle enclosed by the support beam is too small, it will result in an insufficient placement space, making it difficult to place the impeller of the vertical fan within the placement space.

[0013] In this application, the support beam has a cutout. This cutout is formed on the inner side of the support beam according to the size and shape of the vertical fan impeller. The cutout provides redundancy for the dimensional requirements and welding of the support beam, greatly simplifying the manufacturing of the support platform. During the design phase, only the size of the support plate needs to be designed and welded to the support beam; then, the fan size is cut according to the size of the fan. This results in high construction efficiency, and the curvature of the cutout increases the contact area between the vertical fan's support plate and the support beam, improving the stability of the support.

[0014] The impeller is a component of a vertical fan that is easily damaged. Therefore, this application uses a support plate to support the impeller from below, and then removes the impeller through the disassembly hole. The removed impeller can be placed on the support plate. The impeller itself is light and can be placed directly. By adjusting the screw, the impeller can be lowered, which makes it convenient to inspect and maintain the impeller.

[0015] In some embodiments, there are four support beams forming a square, and there are four cutouts located on the inner sides of the four support beams.

[0016] With the above technical solution, the four support beams support the support plate from four directions, resulting in higher stability. Furthermore, being located on rod-shaped components, the vertical welding between them is more convenient.

[0017] In some embodiments, the curvature and cutting depth of the cut are determined according to the size of the impeller, and the cutting depth is less than half the width of the support beam.

[0018] By adopting the above technical solution, the supporting strength of the supporting beam itself is guaranteed.

[0019] In some embodiments, the support plate of the vertical fan is detachably fixed to the support beam by bolts.

[0020] By adopting the above technical solution, the fixing strength is improved, ensuring the stability of the vertical fan during transportation.

[0021] In some embodiments, the support beam is an H-beam.

[0022] The above technical solution uses simple materials and has high strength.

[0023] In some embodiments, there are multiple support legs, each disposed below a different connection point of the support beam, to support the support beam.

[0024] The above technical solution provides more stable support.

[0025] In some embodiments, lifting points are provided on the upper side at different connection positions of the support beams.

[0026] The above technical solution facilitates the relocation of the entire supported wind turbine.

[0027] In some implementations...

[0028] The pallet is provided with lifting holes, and the corresponding position of the support beam is also provided with holes. The lead screw is disposed between the lifting holes and the holes on the support beam.

[0029] The upper end of the lead screw is fixed to the support beam, and the lower end of the lead screw has a nut. The nut (54) is threadedly connected to the lead screw and supports the support plate.

[0030] Rotating the nut in different directions can bring the tray closer to or further away from the support beam.

[0031] By adopting the above technical solution, the impeller of the vertical fan can be easily and quickly disassembled and replaced on the support frame. The disassembled impeller is located on the support plate, and the height of the support plate can be adjusted by the length of the screw between the support rods, which facilitates the maintenance, replacement and inspection of the impeller.

[0032] In summary, this application uses support beams to form a ring, creating a placement space. The support beams around the outer perimeter of this space support the support plate on the vertical fan. Due to the height of the support legs, the lower part of the vertical fan is suspended under the support of the beams, ensuring the impeller is in a suspended state during support and thus protecting the impeller. Furthermore, the cutout design eliminates the need for strict control over the spacing of the support beams, facilitating the fabrication of the support platform. Additionally, when the support plate is circular, the cutout design increases the contact area between the support plate and the support beams, improving stability and providing stable support for the vertical fan, facilitating temporary placement, maintenance, and relocation.

[0033] Furthermore, after the vertical fan is placed, the length of the lead screw can be adjusted so that the support plate touches the bottom of the vertical fan. The connecting bolts between the impeller and the motor at the bottom of the vertical fan can be removed through the disassembly hole, and the fan can be lifted away. At this time, the impeller is placed on the support plate, which facilitates the inspection and maintenance of the impeller. Attached Figure Description

[0034] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their purpose is to illustrate the gist of the invention.

[0035] Figure 1 This is a front view of a vertical fan maintenance support frame with a vertical fan installed in an embodiment of this utility model.

[0036] Figure 2 This is a front view of the support frame for maintenance of a vertical fan in an embodiment of this utility model;

[0037] Figure 3 for Figure 2 Sectional view at point AA;

[0038] Figure 4 This is a top view of the support frame for maintenance of a vertical fan in an embodiment of this utility model;

[0039] Figure 5 This is a front view of the vertical fan in an embodiment of this utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Support leg; 2. Support beam; 21. Placement space; 22. Cutting opening; 31. Impeller; 32. Support plate; 4. Lifting point; 5. Support plate; 51. Lifting hole; 52. Disassembly hole; 53. Lead screw; 54. Nut. Detailed Implementation

[0042] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0045] Example

[0046] Please see Figure 1-5 This embodiment provides a support frame for the maintenance of a vertical fan, including a support leg 1 and a placement platform supported by the support leg 1;

[0047] The placement platform is circular, formed by four supporting beams 2 connected end to end, and the four supporting beams 2 form a square, with a placement space 21 in the center to accommodate the vertical fan.

[0048] The support plate 32 of the vertical fan is placed on the support beam 2, and the impeller 31 of the vertical fan is accommodated in the placement space 21.

[0049] The placement space 21 enclosed by the support beam 2 also includes a cutting opening 22. The cutting opening 22 and the placement space 21 work together to accommodate the impeller 31 of the vertical fan. The cutting opening 22 is located on the support beam 2, and there are four cutting openings 22, which are located on the inner side of the four support beams 2 and are formed by cutting the support beam 2.

[0050] Specifically, the curvature and cutting depth of the cut 22 are determined based on the size of the impeller 31, and its cutting depth is less than half the width of the support beam 2. This is to prevent the cut from excessively affecting the strength of the entire support beam.

[0051] See Figure 5 It should be noted that in the existing technology, the vertical fan has an impeller 31 at the bottom. If the impeller 31 is placed directly on the ground during the regular maintenance, upkeep, and replacement of the vertical fan, it is easy to cause deformation of the impeller 31, affecting the overall performance and potentially leading to impeller damage or imbalance. If the fan is placed on a soft surface during replacement, the impeller 31 is easily damaged. If the fan is lifted by a crane and maintenance is performed during the lifting process, the crane needs to be occupied for a long time, posing a significant safety hazard. The existing technology lacks a stable support device for the vertical fan. Above the vertical impeller 31 is a support plate 32 with multiple lifting points 4. The lifting and transfer of the fan is generally carried out through the support plate 32 fixed in the middle of the fan. The vertical projection of the support plate 32 is slightly larger than the fan and is close to the size of the fan. When manufacturing the support structure, it is difficult to control the size of the support structure. Therefore, it is difficult to use the support plate 32 to support the fan in the existing technology.

[0052] The present application utilizes the support beam 2 and the cutting opening 22 to facilitate the fabrication of the support structure, providing a more efficient, safe and simple support method for vertical fans.

[0053] Specifically, the support plate 32 of the vertical fan is detachably fixed to the upper part of the support beam 2 by bolts.

[0054] Specifically, support beam 2 is an H-beam.

[0055] Specifically, there are four support legs 1, each located below a different connection point of the support beam 2. The support legs are 800mm high, conforming to ergonomic principles for easy inspection and maintenance by personnel.

[0056] Specifically, lifting points 4 are also provided on the upper side of the connection positions of different support beams 2. The entire vertical fan maintenance support frame can be lifted through the lifting points 4, or the vertical fan can be lifted together.

[0057] Specifically, a support plate 5 is provided below the placement space. The support plate 5 has a lifting hole 51, through which a threaded rod 53 passes. The upper end of the threaded rod 53 is fixedly connected to the support beam 2, and the lower end of the threaded rod 53 is threadedly connected to a nut 54. The nut 54 is located below the support plate 5 and supports the support plate 5. Rotating the nut 54 can move the support plate 5 closer to or away from the support beam 2.

[0058] Specifically, holes are provided on the lower flange plate of the support beam 2, the lead screw 53 passes through the holes on the support beam 2, and nuts are provided at both the upper and lower positions of the support beam 2. The nuts are threadedly connected to the lead screw 53, clamping the support beam 2 and fixing the lead screw 53 on the support beam 2.

[0059] Preferably, since all nuts in this embodiment are threaded onto a lead screw, the same type of nut is used.

[0060] Specifically, two threaded rods 53 extend downward from the lower flange of each support beam 2. The support beam 2 is connected to the support plate 5 below using fully threaded rods. The support plate 5 is cross-shaped and is lifted by eight threaded rods 53.

[0061] When maintenance or inspection of the vertical fan is required, first raise the support plate 5 so that it is close to the lower surface of the impeller 31. Then, insert the tool through the disassembly hole 52 and remove the connecting bolts between the impeller 31 and the motor. After the impeller 31 is removed, the motor can be lifted away, or the impeller 31 can be lowered through the lead screw 53, which makes it convenient to maintain and replace the impeller 31.

[0062] Those skilled in the art should understand that variations can be implemented by combining existing technology and the above embodiments, which will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here. The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art; any person skilled in the art can make many possible changes and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model, which does not affect the substantive content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A support frame for the maintenance of a vertical fan, characterized in that, Includes a support leg (1) and a placement platform supported by the support leg (1); The placement platform is circular and is formed by multiple supporting beams (2) connected end to end. The center of the placement platform has a placement space (21) to accommodate the vertical fan. The support plate (32) of the vertical fan is placed on the support beam (2), and the impeller (31) of the vertical fan is accommodated in the placement space (21); The placement space (21) enclosed by the support beam (2) also includes a cutting opening (22), which cooperates with the placement space (21) to accommodate the impeller (31) of the vertical fan. The cutting opening (22) is located on the support beam (2) and is formed by cutting the support beam (2). A tray (5) is also provided below the placement space. The tray (5) is set on the lower side of the support beam (2) by a screw (53) with adjustable length. A disassembly hole (52) is provided on the tray (5). Construction tools can pass through the disassembly hole (52) to remove the impeller (31) from the vertical fan.

2. The support frame for maintenance of vertical fans according to claim 1, characterized in that, There are four support beams (2), which form a square. There are also four cutting openings (22), which are located on the inner side of the four support beams (2).

3. The support frame for maintenance of vertical fans according to claim 1, characterized in that, The curvature and cutting depth of the cut (22) are determined according to the size of the impeller (31), and its cutting depth is less than half the width of the support beam (2).

4. The support frame for maintenance of vertical fans according to claim 1, characterized in that, The support plate (32) on the vertical fan is detachably fixed to the support beam (2) by bolts.

5. The support frame for maintenance of vertical fans according to claim 1, characterized in that, The supporting beam (2) is an H-beam.

6. The support frame for maintenance of vertical fans according to claim 1, characterized in that, There are multiple support legs (1), which are respectively set on the lower side of the connection position of different support beams (2) to support the support beams (2).

7. The support frame for maintenance of vertical fans according to claim 1, characterized in that, Lifting points (4) are provided on the upper side of the connection positions of the different support beams (2).

8. The support frame for maintenance of vertical fans according to claim 1, characterized in that, The pallet (5) is provided with a lifting hole (51), and the corresponding position of the support beam (2) is also provided with a hole. The upper end of the screw rod (53) is fixed to the support beam (2), and the lower end of the screw rod (53) has a nut (54). The nut (54) is threadedly connected to the screw rod (53) and supports the pallet (5). Rotating the nut (54) in different directions can bring the pallet (5) closer to or further away from the support beam (2).

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