Motor impeller dismounting device for aluminum electrolysis 10KV smoke exhaust fan

Abstract

The utility model discloses a dismounting device for a motor impeller of a 10KV smoke exhaust fan for aluminum electrolysis. The dismounting device comprises a fixing plate and a positioning plate, wherein the fixing plate is diamond-shaped; through holes are formed in the two ends of the fixing plate respectively; the positioning plate is disc-shaped; a positioning hole is formed in the positioning plate; one end of a threaded rod penetrates through each of the two through holes of the fixing plate; the other end of each threaded rod penetrates through the holes in the two ends of the positioning hole. One side plate surface of the fixing plate is in threaded connection with one end of a threaded rod through a nut A; one side plate surface of the positioning plate is in threaded connection with the other end of the threaded rod through a nut B; the dismounting device is reasonable in structure, exquisite in design, easy to maintain and repair, easy and convenient to operate, high in usability and high in safety, the situation that actual operation is not limited by a traditional special puller any more is effectively improved, the labor intensity of operators is effectively reduced, and the dismounting device can be used and popularized in the overhauling industry.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum electrolysis fan impeller equipment, in particular to a disassembly device for an impeller of a 10KV smoke exhaust fan motor for aluminum electrolysis. Background Art

[0002] In the maintenance of 10KV high-voltage smoke exhaust fan motors, it is necessary to remove the front and rear impellers of the motor before completing the disassembly of the bearings, oil retaining rings, sleeves, etc. The traditional impeller extraction device generally uses a 2-claw or 3-claw puller (electric hydraulic puller multi-purpose machine) to pull out the impeller on the shaft, but the gap between the impeller and the edge of the body is very small, and the claw clamping method of the puller cannot find a fixed point on the impeller disc, so the traditional claw extraction device cannot be used. If the impeller is removed without a special disassembly tool, it is easy to damage the impeller. Once the impeller is damaged, the dynamic and static balance of the impeller will fail, and the dynamic and static balance of the impeller needs to be adjusted. In severe cases, the impeller is damaged, affecting the safe and stable operation of the 10KV high-voltage smoke exhaust fan motor itself and the system. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a device for disassembling the impeller of a motor of a 10KV smoke exhaust fan for aluminum electrolysis, which solves the above-mentioned technical problems.

[0004] To achieve the purpose of the utility model, the utility model adopts the following technical scheme: a device for disassembling the impeller of a 10KV smoke exhaust fan motor for aluminum electrolysis, comprising a fixing plate and a positioning plate, wherein the fixing plate is in a diamond shape; through holes are respectively provided at both ends of the fixing plate; the positioning plate is in a disc shape; positioning holes are provided on the positioning plate; one end of a threaded rod is respectively passed through the two through holes of the fixing plate; the other end of each threaded rod is respectively passed through the holes at both ends of the positioning hole; a nut A is threadedly connected to one end of the threaded rod on one side of the fixing plate; a nut B is threadedly connected to the other end of the threaded rod on one side of the positioning plate; a hydraulic jack is provided between the fixing plate and the positioning plate.

[0005] Furthermore, the upper and lower ends of the threaded rod are respectively provided with external threads for use with nut A and nut B.

[0006] Furthermore, the length of the fixed plate is 165 mm and the thickness is 18 mm; the diameter of the through hole of the fixed plate is 22 mm, and the spacing between the through holes is 127 mm; the left and right ends of the fixed plate are respectively provided with rounded corners, and the radius of the rounded corners is 19 mm; the upper and lower ends of the fixed plate are respectively provided with rounded corners, and the radius of the rounded corners is 52.5 mm.

[0007] Furthermore, the positioning plate has a diameter of 125 mm and a thickness of 18 mm.

[0008] Furthermore, the length of the positioning hole is 94 mm; the middle diameter of the positioning hole is φ42 mm, and the radii of the two end diameters are 6 mm respectively.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The disassembly device has a reasonable structure, sophisticated design, simple maintenance and repair, easy operation, high practicality and high safety. It effectively improves actual operation and is no longer restricted by traditional special pullers, effectively reduces the labor intensity of operators, and can be promoted and used in the maintenance industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0013] Figure 3 It is a front view structural diagram of the practical application of the utility model;

[0014] Figure 4 It is a rear view structural diagram of the practical application of the utility model;

[0015] Figure 5 It is a plane schematic diagram of the fixing plate of the utility model;

[0016] Figure 6 It is a plan view of the positioning plate of the utility model;

[0017] In the figure: fixing plate-1, positioning plate-2, positioning hole-3, threaded rod-4, nut A-5, nut B-6, hydraulic jack-7, impeller-8. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention:

[0019] like Figure 1-6As shown, a device for disassembling the impeller of a 10KV smoke exhaust fan motor for aluminum electrolysis comprises a fixing plate 1 and a positioning plate 2, wherein the fixing plate 1 is in a diamond shape; through holes are respectively provided at both ends of the fixing plate 1; the positioning plate 2 is in the shape of a disc; a positioning hole 3 is provided on the positioning plate 2, which is convenient for fixing the threaded rod 4 and buckling the positioning plate 2 on the bearing of the impeller 8; one end of the threaded rod 4 is respectively penetrated through the two through holes of the fixing plate 1; the other end of each threaded rod 4 is respectively penetrated through the holes at both ends of the positioning hole 3; a nut A5 is threadedly connected to one end of the threaded rod 4 on one side of the plate surface of the fixing plate 1, so as to play a role of connection and fixing; a nut B6 is threadedly connected to the other end of the threaded rod 4 on one side of the plate surface of the positioning plate 2, so as to play a role of connection and fixing; a hydraulic jack 7 is provided between the fixing plate 1 and the positioning plate 2, so as to apply backward pressure to the fixing plate 1 through the hydraulic jack 7, thereby pulling out the impeller 8.

[0020] Specifically, the upper and lower ends of the threaded rod 4 are respectively provided with external threads for use with the nut A5 and the nut B6.

[0021] Specifically, the fixed plate 1 is 165 mm long and 18 mm thick; the diameter of the through hole of the fixed plate 1 is 22 mm, and the spacing between the through holes is 127 mm; the left and right ends of the fixed plate 1 are respectively provided with rounded corners, and the radius of the rounded corners is 19 mm; the upper and lower ends of the fixed plate 1 are respectively provided with rounded corners, and the radius of the rounded corners is 52.5 mm.

[0022] Specifically, the positioning plate 2 has a diameter of 125 mm and a thickness of 18 mm.

[0023] Specifically, the length of the positioning hole 3 is 94 mm; the middle diameter of the positioning hole 3 is φ42 mm, and the radii of the two end diameters are 6 mm respectively.

[0024] When in use, the operator first passes one end of the two threaded rods 4 through the holes at both ends of the positioning hole 3 and fixes the two threaded rods 4 vertically on the positioning plate 2 through the nuts B6, then holds the two threaded rods 4 to extend the positioning plate 2 into the motor, and places the positioning plate 2 on the protruding bearing of the impeller 8 through the hole in the middle of the positioning hole 3. After the operator threadedly connects the sleeve end of the hydraulic jack 7 with the bearing end of the impeller 8, the operator places the hydraulic jack 7 between the fixing plate 1 and the positioning plate 2 by passing through the other end of the two threaded rods 4, and then adjusts the inner side of the fixing plate 1 to lean against the rear end of the hydraulic jack through the nuts A5 on the two threaded rods 4 passing through one side of the fixing plate 1. After the overall installation is completed, the operator presses the hydraulic jack to apply force to the fixing plate 1, thereby pulling out the impeller 8.

[0025] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A device for disassembling an impeller of a 10KV exhaust fan motor for aluminum electrolysis, comprising a fixing plate (1) and a positioning plate (2), characterized in that: The fixing plate (1) is in a rhombus shape; through holes are respectively provided at both ends of the fixing plate (1); the positioning plate (2) is in a disc shape; a positioning hole (3) is provided on the positioning plate (2); one end of a threaded rod (4) is respectively passed through the two through holes of the fixing plate (1); the other end of each threaded rod (4) is respectively passed through the holes at both ends of the positioning hole (3); a nut A (5) is respectively threadedly connected to one end of the threaded rod (4) on one side of the plate surface of the fixing plate (1); a nut B (6) is respectively threadedly connected to the other end of the threaded rod (4) on one side of the plate surface of the positioning plate (2); a hydraulic jack (7) is provided between the fixing plate (1) and the positioning plate (2).

2. The device for disassembling the motor impeller of a 10KV exhaust fan for aluminum electrolysis according to claim 1 is characterized in that: The upper and lower ends of the threaded rod (4) are respectively provided with external threads for use with a nut A (5) and a nut B (6).

3. The device for disassembling the impeller of a 10KV exhaust fan motor for aluminum electrolysis according to claim 1, characterized in that: The fixing plate (1) is 165 mm long and 18 mm thick; the diameter of the through hole of the fixing plate (1) is 22 mm, and the spacing between the through holes is 127 mm; the left and right ends of the fixing plate (1) are respectively provided with rounded corners, and the radius of the rounded corners is 19 mm; the upper and lower ends of the fixing plate (1) are respectively provided with rounded corners, and the radius of the rounded corners is 52.5 mm.

4. The device for disassembling the impeller of a 10KV exhaust fan motor for aluminum electrolysis according to claim 1 is characterized in that: The positioning plate (2) has a diameter of 125 mm and a thickness of 18 mm.

5. The device for disassembling the impeller of a 10KV exhaust fan motor for aluminum electrolysis according to claim 1, characterized in that: The length of the positioning hole (3) is 94 mm; the middle diameter of the positioning hole (3) is φ42 mm, and the radii of the two end diameters are 6 mm respectively.

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