Related design and manufacturing of lifting electromagnets
Release time:
2023-12-06
Before lifting electromagnet manufacturers can produce standard high-quality lifting electromagnets, they need to start from three aspects: design, manufacturing and application, as follows:
Before lifting electromagnet manufacturers can produce standard high-quality lifting electromagnets, they need to start from three aspects: design, manufacturing and application, as follows:
1. Magnetic circuit structure and design calculation of lifting electromagnet. In order to give full play to the magnetic properties of various permanent magnets, especially the excellent magnetic properties of rare earth permanent magnets, we cannot simply apply traditional structure and design calculation methods to create high-performance lifting suction cups with less permanent magnets and processing costs. It is necessary to establish new design concepts, reanalyze and improve the magnetic circuit structure and control system, improve the accuracy of design calculations, and adopt advanced testing methods and manufacturing processes.
2. Lifting electromagnet control problem. After the product is made, it does not require external energy to maintain its magnetic field, but it is extremely difficult to control its magnetic field from the outside. It is difficult for the permanent magnet chuck to adjust its output voltage and power factor externally, so the permanent magnet DC motor no longer adjusts its speed by changing the excitation. These lifting electromagnets have a limited range of applications. At present, with the rapid development of phase control technology of electronic equipment, lifting equipment can only control the armature without magnetic field control. In the design, it is necessary to combine three new technologies, rare earth permanent magnet materials, power electronic devices and microcomputer control, to make the lifting electromagnet work in a completely new working state.
3. Irreversible demagnetization. If designed or used improperly, the lifting electromagnet and the lifting electromagnet may undergo irreversible demagnetization under the armature reaction caused by the impact current, or under severe mechanical vibration due to the temperature being too high or too low, otherwise known as Demagnetization reduces the performance of the electromagnet and makes it unusable. Therefore, it is necessary to research and develop thermal stability checking methods and devices for permanent magnet materials suitable for electromagnet manufacturers, analyze the anti-demagnetization capabilities of various structural forms, and take corresponding measures to ensure that the lifting electromagnets are designed and manufactured during the design and manufacturing process. No loss of magnetism.
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