Electromagnetic heating auxiliary tool for disassembling motor end cover

Abstract

The utility model discloses an electromagnetic heating auxiliary tool for dismounting a motor end cover, which comprises two screw rods, a fixed disc, a heating wire, a heater, a pressing mechanism, a positioning mechanism and an ejection mechanism, the two screw rods are applied to screw holes arranged on the end cover, the fixed disc is arranged on the two screw rods, two long grooves are arranged on the fixed disc, and the heating wire is arranged on the two long grooves. The two screws are arranged in the two long grooves respectively, the heating wire is fixedly connected into the fixing disc, the heater is installed on the fixing disc and connected with the heating wire, the pressing mechanism is arranged on the two screws and used for making the fixing disc abut against the end cover, and the positioning mechanism is arranged on the two screws and used for positioning the pull-out distance. The ejection mechanism is arranged on the positioning mechanism and used for pulling the end cover out of the motor, the electromagnetic heating auxiliary tool for disassembling the end cover of the motor facilitates stable ejection of the heated end cover, and the disassembly efficiency of the end cover is improved.

Description

Technical Field

[0001] This utility model relates to the field of end cap disassembly technology, specifically to an electromagnetic heating auxiliary tool for disassembling the end cap of an electric motor. Background Technology

[0002] The motor end caps are installed at both ends of the motor housing and play a crucial role. They support the stator and rotor, allowing the rotor to rotate smoothly; they also seal the motor, preventing dust, moisture, and providing insulation, thus protecting the internal components.

[0003] When it is necessary to disassemble the end cover to repair the inside of the motor, it is usually necessary to heat the end cover with an electromagnetic heating wire. The end cover expands due to thermal expansion and contraction. Then, screws are tightened on the end cover, and the end cover is pulled out by a hydraulic puller. However, some motors have a small exposed part of the end cover, making it difficult to wind the electromagnetic heating wire around the end cover. This makes it difficult for the end cover to be heated, reducing the efficiency of end cover disassembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an electromagnetic heating auxiliary tool for disassembling motor end covers. This tool solves the problem mentioned in the background art where some motor end covers have a small exposed portion, making it difficult to wind electromagnetic heating wires around the end covers, thus hindering heating and reducing the efficiency of end cover disassembly.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic heating auxiliary tool for disassembling an electric motor end cover, comprising two screws, the two screws being applied into screw holes opened on the end cover, and further comprising: a fixing plate, a heating wire, a heater, a pressing mechanism, a positioning mechanism, and an ejection mechanism;

[0008] The fixing plate is mounted on two screws, and two long slots are formed on the fixing plate, with the two screws respectively disposed in the two long slots;

[0009] The heating wire is fixedly connected inside the fixed plate;

[0010] The heater is mounted on a fixed plate and is connected to a heating wire;

[0011] The clamping mechanism is mounted on two screws and is used to press the fixed plate against the end cover;

[0012] The positioning mechanism is mounted on two screws and is used to position the pull-out distance;

[0013] The ejection mechanism is mounted on the positioning mechanism and is used to pull the end cap out of the motor.

[0014] Preferably, the clamping mechanism includes: a washer and a clamping nut;

[0015] Both screws are fitted with washers;

[0016] Both screws are threaded with clamping nuts.

[0017] Furthermore, the positioning mechanism includes: a positioning plate, an adjusting groove, and a limiting nut;

[0018] The positioning plate is mounted on two screws;

[0019] The adjustment slot is provided in two places, both of which are opened on the positioning plate, and the two screws are respectively arranged in the two adjustment slots;

[0020] The two screws are threaded with two limiting nuts.

[0021] Furthermore, the ejection mechanism includes: a hydraulic cylinder, a perforation device, and an ejection block;

[0022] The hydraulic cylinder is mounted on the positioning plate;

[0023] Both the positioning plate and the fixing plate are provided with through holes, and the output end of the hydraulic cylinder is located in one of the through holes.

[0024] The ejector block is fixedly connected to the output end of the hydraulic cylinder.

[0025] As a further embodiment of this application, two pressure plates are fitted on each of the two screws, and the positioning plate is located between two adjacent pressure plates.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, this utility model provides an electromagnetic heating auxiliary tool for disassembling the end cover of an electric motor, which has the following beneficial effects:

[0028] In this invention, the arrangement of the heating wire, heater, and pressing mechanism facilitates pressing the fixing plate onto the end cover, thereby bringing the heating wire into contact with the end cover. The heater controls the heating wire to heat the end cover, eliminating the need for a long electromagnetic heating wire to be wound. The arrangement of the positioning mechanism and the ejection mechanism facilitates the smooth ejection of the heated end cover, improving the efficiency of end cover disassembly. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0030] Figure 2 This is a three-dimensional structural diagram from another angle of this application;

[0031] Figure 3 This is a three-dimensional structural diagram of the fixed plate, long slot, heating wire, and perforation of this application;

[0032] Figure 4 This is a three-dimensional structural diagram of the screw, washer, clamping nut, limit nut, and pressure plate of this application.

[0033] In the diagram: 1. Screw; 2. Fixed plate; 3. Long groove; 4. Heating wire; 5. Heater; 6. Washer ring; 7. Compression nut; 8. Positioning plate; 9. Adjustment groove; 10. Limit nut; 11. Hydraulic cylinder; 12. Through hole; 13. Ejector block; 14. Pressure plate. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1 to 4 An electromagnetic heating auxiliary tool for disassembling an electric motor end cover includes two screws 1 inserted into screw holes in the end cover. It also includes a fixing plate 2, a heating wire 4, a heater 5, a pressing mechanism, a positioning mechanism, and an ejection mechanism. The fixing plate 2 is mounted on the two screws 1 and has two elongated slots 3. The two screws 1 are respectively positioned within the two elongated slots 3. The heating wire 4 is fixedly connected to the fixing plate 2. The heater 5 is mounted on the fixing plate 2 and connected to the heating wire 4. The arrangement of the heating wire 4, heater 5, and pressing mechanism facilitates pressing the fixing plate 2 onto the end cover, thereby bringing the heating wire 4 into contact with the end cover. The heater 5 controls the heating of the heating wire 4, thus heating the end cover without the need for a long electromagnetic heating wire 4 to be wound. The positioning and ejection mechanisms facilitate the smooth ejection of the heated end cover, improving the efficiency of end cover disassembly.

[0036] The clamping mechanism is set on two screws 1 and is used to press the fixed plate 2 against the end cover. The clamping mechanism includes: a washer 6 and a clamping nut 7. A washer 6 is sleeved on both screws 1 and a clamping nut 7 is threaded on both screws 1.

[0037] By rotating the clamping nut 7 on the screw 1, the washer 6 is driven to press the fixing plate 2, thereby putting the fixing plate 2 on the end cover and fixing the fixing plate 2, which facilitates a more comprehensive coverage of the exposed end cover and heating of the end cover.

[0038] The positioning mechanism is set on two screws 1 and is used to position the pull-out distance. The positioning mechanism includes: a positioning plate 8, an adjusting groove 9 and a limiting nut 10. Two pressure plates 14 are sleeved on each of the two screws 1. The positioning plate 8 is located between two adjacent pressure plates 14. The positioning plate 8 is set on the two screws 1. There are two adjusting grooves 9. Both adjusting grooves 9 are opened on the positioning plate 8. The two screws 1 are respectively set in the two adjusting grooves 9. Two limiting nuts 10 are threadedly connected to the two screws 1.

[0039] The positioning plate 8 is clamped onto the screw 1 by the limiting nut 10, which facilitates the positioning of the starting position of the output end of the hydraulic cylinder 11, thereby adjusting the distance between the ejector block 13 and the end cover.

[0040] The ejection mechanism is set on the positioning mechanism and is used to pull the end cover out on the motor. The ejection mechanism includes: a hydraulic cylinder 11, a through hole 12 and an ejection block 13. The hydraulic cylinder 11 is mounted on the positioning plate 8. Both the positioning plate 8 and the fixed plate 2 are provided with through holes 12. The output end of the hydraulic cylinder 11 is set in one of the through holes 12. The ejection block 13 is fixedly connected to the output end of the hydraulic cylinder 11.

[0041] The hydraulic cylinder 11 drives the top block to pass through the two through holes 12 and press against the shaft of the motor. Then, the output end of the hydraulic cylinder 11 drives the ejector block 13 to continuously eject, thereby pulling out the end cover relatively smoothly.

[0042] Working principle: When the end cover of the electric motor needs to be disassembled, the electromagnetic heating auxiliary tool typically has at least two screw holes. First, two screws 1 are screwed into the two screw holes respectively. Then, the fixing plate 2 passes through the two screws 1 and is fastened onto the end cover. Next, the operator tightens the two clamping nuts 7, thereby driving the washer ring 6 to press the fixing ring onto the end cover. Then, the heater 5 controls the heating wire 4 to heat the end cover. Due to the principle of thermal expansion and contraction, the end cover loosens slightly. Then, the positioning plate 8 is clamped onto the screws 1 by the limit nut 10, positioning the starting position of the output end of the hydraulic cylinder 11. Then, the output end of the hydraulic cylinder 11 drives the ejector block 13 to pass through the two through holes 12 and push against the shaft of the electric motor. Then, the hydraulic cylinder 11 continues to penetrate deeper, driving the ejector block 13 to continuously push against the shaft, thereby driving the screw 1 to generate a reverse pulling force, thus smoothly pulling out the end cover to achieve disassembly.

[0043] It should also be noted that heater 5 is a common existing device on the market. This application only uses it and does not improve it, so it will not be described in detail.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic heating auxiliary tool for disassembling an electric motor end cap, comprising two screws (1), the two screws (1) being inserted into screw holes opened on the end cap, characterized in that, Also includes: A fixed plate (2) is provided on two screws (1). Two long slots (3) are provided on the fixed plate (2), and the two screws (1) are respectively provided in the two long slots (3). Heating wire (4), the heating wire (4) is fixedly connected inside the fixed plate (2); Heater (5), the heater (5) is mounted on the fixed plate (2), and the heater (5) is connected to the heating wire (4); A clamping mechanism is provided on the two screws (1) for pressing the fixed plate (2) against the end cover; A positioning mechanism is provided on the two screws (1) for positioning the pull-out distance; An ejection mechanism, which is mounted on the positioning mechanism, is used to pull the end cap out of the motor.

2. The electromagnetic heating auxiliary tool for disassembling an electric motor end cover according to claim 1, characterized in that, The clamping mechanism includes: Washer ring (6), both screws (1) are fitted with washer ring (6); The clamping nut (7) is threaded onto both of the screws (1).

3. The electromagnetic heating auxiliary tool for disassembling an electric motor end cover according to claim 2, characterized in that, The positioning mechanism includes: Positioning plate (8), the positioning plate (8) is disposed on the two screws (1); Adjustment groove (9), two adjustment grooves (9) are provided, both adjustment grooves (9) are opened on the positioning plate (8), and two screws (1) are respectively set in the two adjustment grooves (9); Limiting nuts (10) are threaded onto the two screws (1).

4. The electromagnetic heating auxiliary tool for disassembling an electric motor end cover according to claim 3, characterized in that, The ejection mechanism includes: A hydraulic cylinder (11) is mounted on the positioning plate (8); A perforation (12) is provided on both the positioning plate (8) and the fixing plate (2), and the output end of the hydraulic cylinder (11) is located in one of the perforations (12); Ejector block (13), which is fixedly connected to the output end of the hydraulic cylinder (11).

5. The electromagnetic heating auxiliary tool for disassembling an electric motor end cover according to claim 4, characterized in that, Two pressure plates (14) are fitted on each of the two screws (1), and the positioning plate (8) is located between the two adjacent pressure plates (14).

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