Guide device for assembling process of inserting rotor into stator of permanent magnet motor
By using a combination device of fixed plate, guide wheel, positioning rod, gasket and fixing rod during the assembly process of permanent magnet motor, the problem of difficulty in installing the guide device and a single application range is solved, and the stable assembly of multi-specimen rotors is achieved and Efficient assembly process reduces damage and improves equipment applicability.
Patent Information
- Application Number
- CN202323453507.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-19
AI Technical Summary
During the assembly process of permanent magnet motors, commonly used guide devices have problems such as easy to install and difficult to extract and a single scope of application. They cannot adapt to the assembly requirements of rotors of multi-special permanent magnet motors, and are prone to rotor collision damage.
A guide device including the introduction assembly is designed. Through the coordination of the fixing plate, guide wheel, positioning rod, gasket and fixing rod, the rotor and the stator are accurately aligned and stable fixing, adapting to different specifications of rotors and stators to reduce collisions. Injure and simplify the assembly process.
This device greatly reduces collision damage of permanent magnet rotor during assembly, improves the scope of application, can be quickly adjusted to adapt to multiple rotor sizes, solves the problems of difficulty in loading and a single scope of application, and improves the efficiency and equipment of assembly practicality.
Smart Images
Figure CN222169571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of permanent magnet motor assembly guide devices, in particular to a guide device used in the permanent magnet motor rotor into stator assembly process. Background Art
[0002] A permanent magnet motor is a type of electric motor with permanent magnets embedded in the rotor, usually made of permanent magnet materials such as permanent magnets or neodymium iron boron magnets. These permanent magnets generate a magnetic field during the operation of the motor, and generate torque under the interaction with the coil current on the stator, thereby converting electrical energy into mechanical energy. During the assembly process of the permanent magnet motor, in order to ensure that the rotor can correctly enter the assembly position of the stator and ensure the accuracy and efficiency of the assembly, the staff often use a guide device to assist in the installation.
[0003] The permanent magnet synchronous motor rotor has a very strong magnetic force. If the guide device is not used when assembling it into the shell, the rotor will often be attracted to one side by the magnetic force. The instantaneous suction force can easily cause the rotor to hit the winding or core, causing the winding to bump or damage the magnet. The use of a rotor introduction device can avoid the collision and damage of the motor stator and rotor, but the commonly used introduction methods have certain disadvantages: using a magnetic isolation device to isolate the stator and rotor is only suitable for small-volume permanent magnet motors. The magnetic isolation device can be pulled out after installation when the suction force is small. When the suction force is large, one side of the magnetic isolation device will be firmly clamped between the stator and rotor, making it easy to install the tooling but difficult to pull out; or using the rotor shaft to make a special fixed tooling, which is only suitable for products of the same specification. It cannot be installed and used if the shaft size is different. The scope of application is single and cannot meet the rotor assembly requirements of permanent magnet motors of multiple specifications. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a guide device for the assembly process of the permanent magnet motor rotor into the stator, aiming to improve the problems of the guide device for the assembly process of the permanent magnet motor rotor into the stator, which is easy to install but difficult to remove and has a single scope of application and cannot adapt to the rotor assembly needs of permanent magnet motors of multiple specifications.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guide device for the permanent magnet motor rotor into stator assembly process, comprising a rotor and a stator, wherein the rotor is arranged inside the stator, an introduction component is arranged on the top of the stator, the introduction device comprises a positioning rod, one end of the positioning rod is connected to the upper surface of the stator, a gasket is slidably connected to the side wall of the positioning rod, a fixing plate is arranged between the gasket and the stator, a mounting hole is opened on the side wall of the fixing plate, a fixing rod is arranged inside the fixing plate, the side wall of the fixing rod is arranged inside the mounting hole, and one side of the side wall of the fixing rod is rotatably connected to a guide wheel.
[0006] Furthermore, the center points of the rotor and the stator are consistent.
[0007] Furthermore, the side wall of the rotor is in contact with the side wall of the guide wheel.
[0008] Furthermore, there are four introduction components, which are arranged in a rectangular array on the upper surface of the stator.
[0009] The utility model has the following beneficial effects:
[0010] In the utility model, the collision damage of the permanent magnet rotor is greatly reduced through the cooperation among the fixing plate, the guide wheel, the positioning rod, the gasket, the fixing rod, the rotor and the stator, and the assembly and use are convenient. At the same time, the adaptability is wide, a set of devices can take into account a variety of rotor sizes, and the adjustment is convenient and fast. The problem that the guide device used in the assembly process of the rotor into the stator of some permanent magnet motors is easy to install and difficult to remove, and the application range is single, and it cannot adapt to the rotor assembly needs of permanent magnet motors of multiple specifications, thereby improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A schematic diagram of the use of a guide device for the permanent magnet motor rotor into the stator assembly process proposed by the utility model;
[0012] Figure 2 The utility model is a structural schematic diagram of a guide device for assembling a permanent magnet motor rotor into a stator.
[0013] Legend:
[0014] 1. Fixed plate; 2. Guide wheel; 3. Positioning rod; 4. Gasket; 5. Fixed rod; 6. Rotor; 7. Stator. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] Reference Figure 1-2The utility model provides an embodiment: a guide device for the assembly process of a permanent magnet motor rotor into a stator, comprising a rotor 6 and a stator 7. The rotor 6 is arranged inside the stator 7, and an introduction component is arranged on the top of the stator 7. The introduction device comprises a positioning rod 3, one end of the positioning rod 3 is connected to the upper surface of the stator 7, and a gasket 4 is slidably connected to the side wall of the positioning rod 3. A fixing plate 1 is arranged between the gasket 4 and the stator 7, and a mounting hole is opened on the side wall of the fixing plate 1. A fixing rod 5 is arranged inside the fixing plate 1, and the side wall of the fixing rod 5 is arranged inside the mounting hole. A guide wheel 2 is rotatably connected to the side wall of the fixing rod 5 on one side. The center points of the rotor 6 and the stator 7 are consistent, and the side wall of the rotor 6 is in contact with the side wall of the guide wheel 2. Four introduction components are arranged, and the introduction components are arranged on the upper surface of the stator 7 in a rectangular array.
[0017] The import assembly consists of a fixed plate 1, a guide wheel 2, a positioning rod 3, a gasket 4, and a fixed rod 5. There is a mounting hole on each side of the fixed plate 1. The two fixed plates 1 and the guide wheel 2 are connected in series using the fixing rod 5. The guide wheel is a nylon roller with high mechanical strength and low hardness. The mounting hole on the other side of the fixed plate 1 passes through the fixing rod 5 and locks the device. The positioning rod 3 passes through the installation gap of the gasket 4 and the fixed plate 1 to fix the device on the mounting hole of the stator 7 housing. Install multiple import devices and adjust the position of the fixing rod 5 and the extension length of the device so that the inner side of the import wheel 2 is close to the outer circle of the rotor 6. First, lower the lower edge of the rotor 6 to the position of the import wheel 2, and adjust the position of the device again. Make the center of the rotor 6 consistent with the center of the stator 7 and fix it. Continuously lower the rotor 6 vertically to allow it to enter the core cavity of the stator 7.
[0018] Working principle: During installation and use, multiple guide devices are fixed to the mounting threaded holes of the motor casing, and one side of the guide wheel 2 of the guide device faces the outside of the rotor 6. At the same time, the position of the positioning rod 3 of each guide device is adjusted and fixed, so that the extended length of each guide device is consistent, and the guide circle formed by the edges of multiple guide wheels 2 is the same size as the outer circle of the rotor 6. When the permanent magnet rotor 6 is assembled into the casing, the rotor 6 first contacts the guide wheel 2 of the guide device, and after adjustment and alignment, it falls vertically into the motor stator 7 along the guide wheel 2. After the assembly is completed, the guide device is removed. For permanent magnet motors with different outer circle sizes of the rotor 6, adjustments can be made by adjusting the position of the positioning rod 3 and the extended length of the guide device. For stators 7 with mounting holes of different specifications, adaptation can also be achieved by replacing the bolts on the positioning rod 3.
[0019] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A guide device for assembling a permanent magnet motor rotor into a stator, comprising a rotor (6), a stator (7), Features: The rotor (6) is arranged inside the stator (7), and an introduction component is arranged on the top of the stator (7). The introduction component includes a positioning rod (3), one end of the positioning rod (3) is connected to the upper surface of the stator (7), and a gasket (4) is slidably connected to the side wall of the positioning rod (3). A fixing plate (1) is arranged between the gasket (4) and the stator (7), and a mounting hole is opened on the side wall of the fixing plate (1). A fixing rod (5) is arranged inside the fixing plate (1), and the side wall of the fixing rod (5) is arranged inside the mounting hole. One side of the side wall of the fixing rod (5) is rotatably connected to a guide wheel (2).
2. A guide device for assembling a permanent magnet motor rotor into a stator according to claim 1, Features: The center points of the rotor (6) and the stator (7) are consistent.
3. A guide device for assembling a permanent magnet motor rotor into a stator according to claim 1, Features: The side wall of the rotor (6) is in contact with the side wall of the guide wheel (2).
4. A guide device for assembling a permanent magnet motor rotor into a stator according to claim 1, Features: There are four introduction components, which are arranged in a rectangular array on the upper surface of the stator (7).