Mounting mechanism of rotor magnetic steel
By designing an installation mechanism for rotor magnets, using magnetic positioning and 502 glue fixation, the problems of inaccurate fixing methods and inconvenient operation in the existing technology are solved, achieving accurate positioning, quick disassembly and easy operation, ensuring Stable operation and long-term use of the motor.
Patent Information
- Application Number
- CN202421052948.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In the prior art, the fixing method of rotor magnetic steel has problems such as inaccurate position, inconvenient operation and high processing and assembly process requirements, which affects the stable operation and long-term use of the motor.
An installation mechanism is designed, including a base, a cylindrical mandrel, a cylindrical jacket, a push sleeve and a magnetic steel replica. It is positioned by magnetic force and fixed with 502 glue to achieve quick disassembly and easy operation.
It achieves accurate positioning, quick disassembly and easy operation, reduces the process requirements for processing and assembly, and ensures the stable operation and long-term use of the motor.
Smart Images
Figure CN222381408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tools, in particular to an installation mechanism for motor rotor magnetic steel. Background Art
[0002] As we all know, permanent magnet brushless motors are widely used, almost in all fields of aerospace, national defense, industrial and agricultural production and daily life. The fixing method of the rotor magnet has an important impact on the performance and life of the motor. When selecting the fixing method, it is necessary to analyze the specific situation of the motor and select the appropriate fixing method to ensure the stable operation and long-term use of the motor. The rotor magnet is magnetic and is easily adsorbed on each other. It is fragile and easy to break after collision. Commonly used rotor magnets are installed in mechanical fixing and adhesive fixing methods. The mechanical fixing method generally uses a pin structure for fixing. The structure is simple and reliable, but this fixing method limits the shape of the rotor magnet, which will affect the design freedom to a certain extent. At the same time, this fixing method has high requirements for processing and assembly processes and requires strict control. Summary of the invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a rotor magnetic steel installation mechanism, which ensures accurate positioning and convenient operation.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a rotor magnetic steel installation mechanism, provided with a base, characterized in that a cylindrical core shaft is vertically fixed on the base, the core shaft is sleeved with a cylindrical outer sleeve, four long strip observation slots are processed on the cylinder wall of the outer sleeve at equal intervals along the axial direction, the inner cavity of the outer sleeve is sleeved with a cylindrical push sleeve, the outer diameter of the push sleeve is consistent with the inner diameter of the outer sleeve, two semi-cylindrical magnetic steel replicas are arranged between the inner cavity wall of the push sleeve and the core shaft, the outer diameter of the magnetic steel replica is consistent with the inner diameter of the push sleeve, and the inner diameter of the magnetic steel replica is consistent with the outer diameter of the core shaft.
[0005] The utility model has the beneficial effects of accurate positioning, quick disassembly and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0007] Figure 1 A schematic structural diagram of the utility model.
[0008] Figure 2 It is an exploded view of the utility model.
[0009] Figure 3 This is a schematic diagram of the rotor magnetic steel installation of the utility model.
[0010] In the figure, 1-base; 2-core shaft; 3-rotor; 4-rotor inner sleeve; 5-pushing sleeve; 6-outer sleeve; 7-magnet; 8-magnet replica, 9-observation slot. DETAILED DESCRIPTION
[0011] In the figure, the utility model is provided with a base 1, on which a cylindrical core shaft 2 is vertically fixed, the core shaft 2 is sleeved with a cylindrical outer sleeve 6, on the cylinder wall of the outer sleeve 6 four long strip observation slots 9 are processed at equal intervals along the axial direction, the inner cavity of the outer sleeve 6 is sleeved with a cylindrical push sleeve 5, the outer diameter of the push sleeve 5 is consistent with the inner diameter of the outer sleeve 6, two semi-cylindrical magnetic steel replicas 8 are provided between the inner cavity wall of the push sleeve 5 and the core shaft 2, the shape of the two semi-cylindrical magnetic steel replicas 8 is the same as the size and shape of the magnetic steel 7, the outer diameter of the magnetic steel replica 8 is consistent with the inner diameter of the push sleeve 5, and the inner diameter of the magnetic steel replica 8 is consistent with the outer diameter of the core shaft 2.
[0012] Place the base 1 on the workbench, connect the mandrel 2 to the base 1, install the rotor 3, the rotor inner sleeve 4 and the outer sleeve 6 in sequence, put a semi-cylindrical magnet 7 and a magnet replica 8 into the rotor inner sleeve 4, and use the push sleeve 5 to push it to the bottom of the base 1, use 502 glue to fix the magnet 7 through the outer sleeve observation slot 9, and take out the magnet replica 8. Then insert another semi-cylindrical magnet 7 and another semi-cylindrical magnet replica 8 into the rotor inner sleeve 4, use the push sleeve 5 to push it to the magnet 7, install the magnet replica 8 in the direction of the previously installed magnet 7, use the push sleeve 5 to install the magnet 7 to the bottom of the base, take out the magnet replica 8, and lift a part of the outer sleeve 6. At this time, due to the magnetic force of the magnet 7, the two semi-cylindrical magnets have been positioned and fixed by winding.
[0013] During installation, first use a magnet replica 8 of the same size to match the magnet 7, push it to the specified position, fix the magnet with glue, then take out the magnet replica 8, repeat the same steps, and install another magnet on the opposite side. This method ensures accurate positioning and convenient operation.
Claims
1. A rotor magnetic steel mounting mechanism, provided with a base, characterized in that: A cylindrical core shaft is vertically fixed on the base, and the core shaft is covered with a cylindrical outer sleeve. Four long observation slots are processed on the wall of the outer sleeve at equal intervals along the axial direction. A cylindrical push sleeve is covered in the inner cavity of the outer sleeve. The outer diameter of the push sleeve matches the inner diameter of the outer sleeve. Two semi-cylindrical magnetic steel replicas are arranged between the inner cavity wall of the push sleeve and the core shaft. The outer diameter of the magnetic steel replica matches the inner diameter of the push sleeve, and the inner diameter of the magnetic steel replica matches the outer diameter of the core shaft.