Motor rotor extraction device
By designing a motor rotor extraction device with detachable connection of extraction sleeves and support pipes, the problem of frequent replacement of motor rotors with different shaft diameters is solved, and convenient motor rotor extraction operation is achieved.
Patent Information
- Application Number
- CN202422351913.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Due to the different shaft diameters of the rotor of the ship motor, it is necessary to frequently replace sleeves of different sizes, which leads to cumbersome and inconvenient operation, especially the rotor extraction operation of high-power motors is difficult to move and store.
A motor rotor extraction device including a extraction sleeve and a support pipe is designed. The extraction sleeve and the support pipe are removably connected through a flange. The diameter of the support pipe is equal to or smaller than the extraction sleeve and the length is less than the extraction sleeve. It is suitable for motor rotors of different shaft diameters.
It realizes flexible replacement of sleeves according to the shaft diameter of the motor rotor, reducing operation difficulty and weight, making it easy to move and store, and improving operation convenience.
Smart Images
Figure CN223156934U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a device for extracting a motor rotor. Background Art
[0002] After a ship motor has been running for a long time, in order to extend its service life, it needs to be repaired and cleaned. During this process, the rotor of the motor needs to be taken out, and then operations such as dynamic balancing of the rotor, water washing of the stator, and baking in the furnace are carried out. However, the sizes of the motors equipped on ships are different, and the shaft diameters of the corresponding motor rotors are also different. Currently, sleeves with various pipe diameters are usually equipped. The length of the sleeve is approximately 1.5 m, which occupies a large space and is inconvenient to store. For example, for a high-power ballast pump, the overall weight of the motor is about 3000 kg, the weight of the motor rotor is close to 1000 kg, and the rotor shaft diameter is DN100. If the current common method is used, a sleeve with DN125 needs to be used to extract the rotor. Since the sleeve itself is very heavy, it is not easy to move and the operation is very inconvenient. Therefore, during maintenance and cleaning, the staff needs to continuously replace sleeves with different sizes and weights for operation, and the operation is very cumbersome. Content of the Utility Model
[0003] In view of the problem that due to different shaft diameters of motor rotors, different sizes of sleeves need to be replaced, making the operation very cumbersome, the utility model provides a device for extracting a motor rotor.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A device for extracting a motor rotor includes an extraction sleeve and a support pipe. One end of the extraction sleeve is fixed with a first flange, and one end of the support pipe is fixed with a second flange. The first flange is detachably connected to the matching second flange.
[0006] Further, the pipe diameter of the support pipe is equal to or smaller than the pipe diameter of the extraction sleeve.
[0007] Further, the first flange and the second flange are connected by a plurality of bolts.
[0008] Further, the length of the extraction sleeve is smaller than the length of the support pipe.
[0009] The beneficial effect of the utility model is that the support pipe in the utility model can be detachably connected to extraction sleeves with different shaft diameters, and the extraction sleeve can be flexibly replaced according to motor rotors with different shaft diameters. The operation is convenient and fast, and the weight is greatly reduced, which is convenient for movement. Description of the Drawings
[0010] Figure 1The figure shows a schematic structural principle diagram of an embodiment of the present utility model.
[0011] Figure 2 The figure shows an installation schematic diagram of the present utility model and a motor rotor.
[0012] Figure 3 The figure shows an operation schematic diagram of the present utility model. Specific Embodiment
[0013] The present utility model discloses a motor rotor extraction device. The following provides a specific description of an embodiment of the present utility model in conjunction with the accompanying drawings.
[0014] As Figure 1 shown, the motor rotor extraction device includes an extraction sleeve 1 and a support tube 2. A first flange 3 is fixed at one end of the extraction sleeve 1, and a second flange 4 is fixed at one end of the support tube 2. The first flange 3 and the matching second flange 4 are detachably and fixedly connected by a plurality of bolts. The diameter of the support tube 2 is equal to or smaller than the diameter of the extraction sleeve 1, and the length of the extraction sleeve 1 is smaller than the length of the support tube 2.
[0015] Combined with Figure 2 and Figure 3 shown, in use, after removing the end cover of the motor 5, the sling 7 of the double-frame crane in the workshop is sleeved on one side of the rotor 6. The staff selects a suitable extraction sleeve 1 according to the shaft diameter of the rotor 6. The extraction sleeve 1 is detachably and fixedly connected to the support tube 2 through a flange, and the extraction sleeve 1 is sleeved on the end of one side of the rotor 6. The extraction sleeve 1 can prevent the sling 7 from moving along the rotor 6. The staff holds the support tube 2 and presses down, and cooperates with the sling 7 to make the rotor 6 suspended. Then the double-frame crane in the workshop moves to the side away from the motor 5, and the sling 7 drives the rotor 6 to gradually disengage from the motor 5 through friction.
[0016] In the present utility model, the extraction sleeve 1 and the support tube 2 are detachably connected through a flange. Compared with the current large-diameter sleeve, the weight can be greatly reduced, which is convenient for movement and operation. In the present utility model, according to the shaft diameter size of the existing rotor 6, extraction sleeves 1 suitable for different shaft diameters of the rotor 6 are equipped, which can be replaced according to the actual situation, solving the problem that a variety of sleeves with different diameters need to be equipped at present, occupying a large storage space, and being convenient for replacing the extraction sleeve 1 during use, with convenient and fast operation.
[0017] Certainly, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A motor rotor extraction device, characterized in that: It includes an extraction sleeve (1) and a support tube (2). One end of the extraction sleeve (1) is fixed with a first flange (3), and one end of the support tube (2) is fixed with a second flange (4). The first flange (3) is detachably connected to the matching second flange (4).
2. The motor rotor extraction device according to claim 1, characterized in that: The diameter of the support tube (2) is equal to or less than the diameter of the extraction sleeve (1).
3. An electric motor rotor extraction device according to claim 1, characterized in that: The first flange (3) and the second flange (4) are connected by a plurality of bolts.
4. A motor rotor extraction device according to claim 1, characterized in that: The length of the extraction sleeve (1) is less than the length of the support tube (2).