Dismounting device

Abstract

The dismounting device comprises a top frame, a plurality of stand columns, a plurality of bottom plates and telescopic pieces, the top frame comprises a plurality of guide rods in a radial shape, one ends of the guide rods are connected, the tops of the stand columns are movably arranged outside the guide rods in a sleeved mode one by one, and the telescopic pieces are arranged on the bottom plates. Each bottom plate comprises a connecting part and a limiting part used for abutting against the lower end face of the impeller, the limiting parts are connected with the connecting parts, the connecting parts of the multiple bottom plates are connected with the bottoms of the multiple stand columns in a one-to-one mode, the limiting parts of the multiple bottom plates are all located in the vertical projection of the area defined by the multiple stand columns, and one end of the telescopic piece is connected with the top frame. The end, deviating from the top frame, of the telescopic piece is located on the spindle and the limiting part extends to the lower side of the impeller. The impeller of the multi-stage fan is smoothly disassembled, the disassembling difficulty of the impeller of the multi-stage fan is overcome, the cost of returning to a factory for maintenance is reduced, the maintenance time is shortened, and the influence on production is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fan maintenance, in particular to a disassembly device. Background Art

[0002] The multi-stage fan includes multiple impellers, a main shaft and a partition. Multiple impellers are arranged on the main shaft in sequence. The partition is sleeved outside the main shaft with gaps. A partition is arranged between two adjacent impellers. The air is compressed gradually between multiple groups of impellers. Due to the high speed, high pressure and large flow of multi-stage fans, the fans need to be inspected and maintained regularly. When the multi-stage fan has abnormal noise, vibration and temperature parameters, it is necessary to dismantle the multi-stage fan for inspection and maintenance.

[0003] When disassembling and repairing fans, including multi-stage fans, the impeller and the main shaft may rust and stick together under operating conditions where the conveyed medium has high humidity, making it difficult to disassemble the impeller. Utility Model Content

[0004] The present application provides a disassembly device, which solves the technical problem of difficulty in disassembling the impeller when the fan is dismantled for maintenance.

[0005] The present application provides a disassembly device for disassembling an impeller installed on a main shaft of a fan, the disassembly device comprising a top frame, a plurality of columns, a plurality of bottom plates and a telescopic member, the top frame comprising a plurality of radial guide rods, one end of the plurality of guide rods being connected, the tops of the plurality of columns being movably sleeved outside the plurality of guide rods one by one, the bottom plate comprising a connecting portion and a limiting portion for abutting against the lower end surface of the impeller, the limiting portion being connected to the connecting portion, the connecting portions of the plurality of bottom plates being connected one by one with the bottoms of the plurality of columns, the limiting portions of the plurality of bottom plates being all located in the vertical projection of the enclosed area of ​​the plurality of columns, one end of the telescopic member being connected to the top frame, wherein when the impeller is disassembled, the end of the telescopic member facing away from the top frame is located on the main shaft and the limiting portion extends to the lower side of the impeller.

[0006] In some embodiments, the disassembly device includes a lifting ring, which is fixedly connected to the top frame at the upper side of the top frame.

[0007] In some embodiments, one end of the telescopic member abuts against the top frame.

[0008] In some embodiments, the plurality of radial guide rods are evenly distributed.

[0009] In some embodiments, the guide rod is a straight rod.

[0010] In some embodiments, the plurality of guide rods are distributed horizontally.

[0011] In some embodiments, the surface of the base plate is distributed horizontally, and the columns are distributed vertically.

[0012] In some embodiments, the bottom plate is in the shape of a sector.

[0013] In some embodiments, the column includes a column body and a sleeve frame connected to the top of the column body, the sleeve frame and the top side of the column body are enclosed to form a sleeve hole, and the guide rod is movably arranged in the sleeve hole.

[0014] In some embodiments, the top frame includes four guide rods, which are evenly distributed in a radial shape, and the guide rods are made of I-beams.

[0015] The beneficial effects of the present application are as follows: a disassembly device is provided, which is used to disassemble the impeller installed on the main shaft of the fan, comprising a top frame, a plurality of columns, a plurality of bottom plates and a telescopic member. When in use, the disassembly device is placed on the main shaft of the fan, specifically the telescopic member is placed on the main shaft, and then the position of the column on the guide rod is adjusted so that the plurality of bottom plates are brought closer to each other until the limiting portion of the bottom plate extends to the lower side of the impeller. As the telescopic member continues to extend, the telescopic member drives the top frame to move upward, thereby the bottom plate also moves upward, and the limiting portion of the bottom plate drives the impeller to move upward along the main shaft of the fan, thereby achieving the purpose of disassembling the impeller.

[0016] In the present disclosure, during the disassembly process, the limiting portion of the bottom plate contacts the impeller, the contact area between the limiting portion and the impeller is large, and the disassembly process causes less damage to the impeller, which effectively solves the problem of difficult disassembly of the fan impeller.

[0017] When disassembling the multi-stage fan, the limit part extends to the lower side of the impeller, and more specifically, the limit part extends to the gap between the impeller and the partition plate, which successfully realizes the disassembly of the impeller of the multi-stage fan, overcomes the difficulty of disassembling the impeller of the multi-stage fan, reduces the cost of returning to the factory for maintenance, shortens the maintenance time, and reduces the impact on production;

[0018] The disassembly device disclosed in the present invention also has the advantages of simple structure and convenient disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model.

[0020] Figure 1 A schematic diagram of the structure of a disassembly device provided in the present application excluding the telescopic member;

[0021] Figure 2 A disassembly device provided in the present application includes a schematic structural diagram of a telescopic member;

[0022] Figure 3 A schematic diagram of a sleeve hole of a column in a disassembly device provided in the present application;

[0023] Figure 4A schematic diagram of a disassembly device provided in the present application for disassembling an impeller of a multi-stage fan.

[0024] The accompanying drawings are marked with: 10-top frame, 11-guide rod, 11a-center position, 20-column, 21-column, 22-frame, 22a-hole, 30-bottom plate, 31-connecting part, 32-limiting part, 40-telescopic part, 50-lifting ring, 100-main shaft, 200-impeller, 300-partition. DETAILED DESCRIPTION

[0025] It is difficult to dismantle the impeller of the fan during on-site maintenance, which cannot meet production needs in a timely manner. If it is returned to the original factory for maintenance, it will be time-consuming and costly.

[0026] In order to solve the above problems, a disassembly device is disclosed. Figure 1 The disassembly device includes a top frame 10, a plurality of columns 20, a plurality of bottom plates 30 and a telescopic member 40, and is used to disassemble the impeller 200 on the main shaft 100 of the fan.

[0027] Please refer to Figure 1 The top frame 10 includes a plurality of radial guide rods 11, one end of each of the plurality of guide rods 11 is connected to each other, and one end of each of the plurality of guide rods 11 is connected to the center position 11a. The tops of the plurality of columns 20 are movably mounted on the plurality of guide rods 11, so that the columns 20 can move along the length direction of the guide rods 11. The bottom plate 30 includes a connecting portion 31 and a limiting portion 32 connected to the connecting portion 31, the limiting portion 32 is used to abut against the lower end surface of the impeller, the connecting portions 31 of the plurality of bottom plates 30 are connected to the bottoms of the plurality of columns 20 one by one, and the limiting portions 32 of the plurality of bottom plates 30 are all located in the vertical projection of the enclosed area of ​​the plurality of columns 20. When disassembling the impeller 200, please refer to Figure 4 , the limiting portion 32 extends to the lower side of the impeller 200.

[0028] Please refer to Figure 2 One end of the telescopic member 40 is connected to the top frame 10 at the lower side of the center position 11 a . When the impeller 200 is disassembled, the end of the telescopic member 40 that is away from the top frame 10 is located on the main shaft 100 .

[0029] Please refer to Figure 4When disassembling the impeller 200 of the fan, the disassembly device is placed on the main shaft 100 of the fan, specifically the telescopic member 40 is placed on the main shaft 100, and then the position of the column 20 on the guide rod 11 is adjusted so that the multiple bottom plates 30 are close to each other until the limit portion 32 of the bottom plate 30 extends below the impeller 200, and then the telescopic member 40 is extended. As the telescopic member 40 continues to extend, the telescopic member 40 drives the top frame 10 to move upward, and the bottom plate 30 also moves upward with the top frame 10, so that the limit portion 32 of the bottom plate 30 moves the impeller 200 upward along the main shaft 100 of the fan, and the purpose of disassembling the impeller 200 is achieved. Thereby overcoming the problem that the impeller and the main shaft are rusted and stuck together, which makes it difficult to disassemble the impeller.

[0030] When removing the impeller 200 of the fan, please refer to Figure 1 The disassembly device includes a lifting ring 50, which is fixedly connected to the top frame 10 on the upper side of the center position 11a. When the disclosed solution is in use, the top frame 10 and the column 20 are lifted by the lifting ring 50, and the top frame 10 and the column 20 are smoothly placed on the fan.

[0031] The disassembly device disclosed in the present invention can also be used to disassemble a multi-stage fan. Figure 4 , the disassembly device is placed on the main shaft 100 of the multi-stage fan, specifically the telescopic member 40 is placed on the main shaft 100, and then the position of the column 20 on the guide rod 11 is adjusted so that the multiple bottom plates 30 are close to each other until the limiting portion 32 of the bottom plate 30 extends into the gap between the impeller 200 and the partition 300, and the gap between the impeller 200 and the partition 300 is located at the lower side of the impeller 200, and then the telescopic member 40 is extended. As the telescopic member 40 continues to extend, the telescopic member 40 drives the top frame 10 to move upward, and the bottom plate 30 also moves upward with the top frame 10, so that the limiting portion 32 of the bottom plate 30 moves the impeller 200 upward along the main shaft 100 of the fan, achieving the purpose of removing the impeller 200, successfully realizing the disassembly of the impeller 200 of the multi-stage fan, overcoming the difficulty of disassembling the impeller 200 of the multi-stage fan, reducing the cost of returning to the factory for overhaul, shortening the overhaul time, and reducing the impact on production.

[0032] It should be noted that during the specific disassembly process, the fan Figure 4 As shown, it is placed vertically so that the main axis of the fan is arranged vertically, and a special support frame is set under the fan to support the fan housing.

[0033] In the present disclosure, during the disassembly process, the limiting portion 32 of the base plate 30 contacts the impeller 200, and the contact area between the limiting portion 32 and the impeller 200 is large. The disassembly process causes less damage to the impeller 200, effectively solving the problem of difficult disassembly of the fan impeller 200.

[0034] The disassembly device disclosed in the present invention also has the advantages of simple structure and convenient disassembly.

[0035] The disclosed solution defines a plurality of columns 20 and a plurality of bottom plates 30, the number of the columns 20 and the number of the bottom plates 30 are both at least 3. In some embodiments, please refer to Figure 1 The top frame 10 includes four guide rods 11, which are evenly distributed in a radial shape, and two adjacent guide rods 11 are distributed at an interval of 90 degrees in the circumferential direction of the top frame 10.

[0036] In some embodiments, see Figure 1 , guide rod 11 is made of I-beam.

[0037] In some embodiments, see Figure 3 The column 20 includes a column 21 and a sleeve frame 22 connected to the top of the column 21. The sleeve frame 22 and the top side of the column 21 are enclosed to form a sleeve hole 22a. Please refer to Figure 1 and Figure 3 The guide rod 11 is movably arranged in the sleeve hole 22a.

[0038] In some embodiments, see Figure 3 , column 21 is made of channel steel.

[0039] In some embodiments, one end of the telescopic member 40 abuts against the top frame 10 at the lower side of the center 11a. The telescopic member 40 and the top frame 10 are separable from each other, and the telescopic member 40 is placed between the top frame 10 and the main shaft 100 of the fan when the impeller 200 of the fan is disassembled.

[0040] In some embodiments, see Figure 1 The plurality of radial guide rods 11 are evenly distributed, and the interval angle between two adjacent guide rods 11 in the circumferential direction of the top frame 10 is a constant.

[0041] In some embodiments, see Figure 1 The guide rods 11 are straight rods, and the ends of all the guide rods 11 away from the center position 11a are equidistant from the center position 11a, so that the ends of all the guide rods 11 away from the center position 11a are located on the same circumference, making the shape of the top frame regular.

[0042] In some embodiments, see Figure 2 , multiple guide rods 11 are distributed horizontally.

[0043] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 4 The surface of the bottom plate 30 is distributed horizontally, the columns 20 are distributed vertically, and the top frame 10 is distributed horizontally.

[0044] In some embodiments, see Figure 1 , the shape of the bottom plate 30 is fan-shaped.

[0045] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A disassembly device, characterized in that: Used to dismantle an impeller mounted on a main shaft of a fan, the dismantling device comprising: The top frame includes a plurality of radial guide rods, one end of each of the plurality of guide rods being connected; A plurality of columns, the tops of which are movably sleeved outside the plurality of guide rods; A plurality of bottom plates, each of the bottom plates comprising a connecting portion and a limiting portion for abutting against the lower end surface of the impeller, the limiting portion being connected to the connecting portion, the connecting portions of the plurality of bottom plates being connected one by one to the bottoms of the plurality of columns, and the limiting portions of the plurality of bottom plates being located in a vertical projection of an enclosed area of ​​the plurality of columns; A telescopic member, one end of which is connected to the top frame; When the impeller is disassembled, one end of the telescopic member facing away from the top frame is located on the main shaft and the limiting portion extends to the lower side of the impeller.

2. The disassembly device according to claim 1, characterized in that: The disassembly device comprises a lifting ring, and the lifting ring is fixedly connected to the top frame at the upper side of the top frame.

3. The disassembly device according to claim 1, characterized in that: One end of the telescopic member abuts against the top frame.

4. The disassembly device according to claim 1, characterized in that: The plurality of radial guide rods are evenly distributed.

5. The disassembly device according to claim 1, characterized in that: The guide rod is a straight rod.

6. The disassembly device according to claim 5, characterized in that: The plurality of guide rods are distributed horizontally.

7. The disassembly device according to claim 6, characterized in that: The surface of the bottom plate is distributed horizontally, and the columns are distributed vertically.

8. The disassembly device according to claim 1, characterized in that: The bottom plate is in a fan shape.

9. The disassembly device according to claim 1, characterized in that: The column comprises a column body and a sleeve frame connected to the top of the column body, the sleeve frame and the top side of the column body are enclosed to form a sleeve hole, and the guide rod is movably arranged in the sleeve hole.

10. The disassembly device according to claim 1, characterized in that: The top frame includes four guide rods, which are evenly distributed in a radial shape, and the guide rods are made of I-beams.

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