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Zhejiang Xian Wei Electric Co., Ltd

NEWS

In the use of permanent magnet DC gear motor need to pay attention to what

In the use of permanent magnet DC gear motor need to pay attention to what

1. in the use of permanent magnet DC gear motor need to pay attention: 1. Low speed, high torque models to take the current limiting protection method to prevent the occurrence of blocking caused by the damage to the gear reducer; 2. When the motor reverses instantaneously, it will produce a large current, which will affect the life of the motor. Frequent commutation should be switched when the motor is completely stopped;

2024-05-08

08

2024-05

Characteristics of vibration motor

Characteristics of vibration motor

1. The excitation power and power are properly matched, the vibration force is large, the body is light in weight, small in size, and low in mechanical noise. Because the vibration motor is a strong resistance type vibration rather than resonance, so there is a stable amplitude. The vibration frequency range is large. The vibration frequency of the electromagnetic vibration exciter is fixed, generally equal to the power step rate, and the vibration frequency of the vibration motor can be adjusted in a wide range by adjusting the speed, and the vibration frequency and amplitude can be arbitrarily selected according to different paths. 4. The influence of power fluctuation is small, and the electromagnetic vibration exciter will cause large changes in the exciting force due to voltage changes, but in the vibration motor, this change is very small.

2024-05-23

23

2024-05

Vibration motor maintenance and maintenance

Vibration motor maintenance and maintenance

The bearings of the vibration motor should be replenished with grease regularly, usually once every 2-3 months. Use a grease gun to fill the grease nipple at the vibrating motor or remove and fill the grease. The amount of oil injection is 1/3 to 1 of the volume of the bearing chamber. Vibration motor general operation 4-6 months minor repair once, a year overhaul. During minor repairs, remove the accumulated dust of the body, check the insulation resistance of the coil and whether the wiring is firm, and remove hidden dangers in time. During overhaul, the motor shall be turned on to remove the dust inside and outside the machine body, check the wear of the bearing, check whether the joint, grounding and fastening bolts are loose and tighten them in time, and replace with new grease. Vibration motor in operation such

2024-05-23

23

2024-05

Structure and working principle of electromagnetic speed regulation asynchronous motor

Structure and working principle of electromagnetic speed regulation asynchronous motor

The electromagnetic speed regulation asynchronous motor is composed of three parts: ordinary squirrel-cage asynchronous motor, electromagnetic slip clutch and electrical control device. The asynchronous motor is used as the prime mover. When it rotates, it drives the armature of the clutch to rotate together. The electrical control device is a device that provides the excitation current of the excitation coil of the slip clutch. This paper mainly introduces the electromagnetic slip clutch, which includes three parts: armature, magnetic pole and excitation coil. The armature is a cylindrical structure made of cast steel, which is connected with the rotating shaft of a squirrel-cage asynchronous motor, commonly known as the active part; the magnetic pole is made of a claw-shaped structure and is installed on the load shaft, commonly known as the driven part. There is no mechanical connection between the active part and the driven part. When the excitation coil through the current generated magnetic field, claw structure will form many pairs of magnetic poles. At this time, if the armature is dragged to rotate by the squirrel-cage asynchronous motor, then it will cut the magnetic field interaction and generate torque, so the magnetic poles of the driven part will rotate with the active part of the armature, and the speed of the former is lower than the latter. Because only when the armature and the magnetic field have relative movement, the armature can cut the magnetic lines of force. The poles rotate with the armature. There is no essential difference between the principle and the principle that the rotor of an ordinary asynchronous motor moves with the rotating magnetic field of the stator winding. The difference is that the rotating magnetic field of the asynchronous motor is generated by the three-phase alternating current in the stator winding, and the magnetic field of the electromagnetic slip clutch is generated by the excitation coil. The DC current is generated, and the rotating magnetic field is played by the rotation of the armature.

2024-05-23

23

2024-05

Installation of electromagnetic speed regulating motor

Installation of electromagnetic speed regulating motor

Preparation before 1. installation Before installing the speed regulating motor, check whether the package is intact and damp. After opening the cover, carefully remove the dust and rust-proof layer on the motor. Carefully check whether there is deformation and damage during transportation, whether the fasteners are loose or fall off, whether the rotor rotates flexibly, whether the nameplate data meets the requirements. Measure the high voltage resistance with 500VMQ meter. The insulation resistance should not be less than 1MQ. Otherwise, the winding should be dried, however, the treatment temperature does not exceed J20 °C. Installation site and installation foundation of 2. electromagnetic speed regulating motor

2024-05-23

23

2024-05

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