SAMSON motor Germany SAMSON model SAMSON price

SAMSON motors have a set of adjustable eccentric weights installed at each end of the rotor shaft, utilizing the centrifugal force generated by the high-speed rotation of the shaft and eccentric weights to obtain excitation force. Vibration motors have a wide vibration frequency range; only when the excitation force and power are properly matched can mechanical noise be reduced. Vibration motors are classified into six categories, including classification by starting and operating mode, and by operating speed.

SAMSON motor phase angle and torque

The motor phase difference angle (torque angle) is the phase difference δ between the no-load induced electromotive force generated by the magnetic field and the armature voltage. The torque of a synchronous motor is proportional to sin (δ), and reaches the theoretical xxx torque at δ = 90 degrees (this differs for cylindrical motors versus salient-pole motors). Furthermore, since the motor rotates synchronously with the frequency of the armature voltage, the output is proportional to the torque. If the load torque is too high, the motor will stop due to "out-of-step (loss of synchronism)". The torque at this point is called the "pull-out torque", and serves as the phase difference angle within the range of 50-70 degrees.

SAMSON motor structure

Motors mainly consist of a stator, a rotor, and bearings. The stator mainly consists of an iron core, three-phase windings, a frame, and end caps. The stator core is generally punched and stacked from silicon steel sheets with an insulating layer on the surface, with a thickness of 0.35~0.5 mm. Uniformly distributed slots are punched in the inner circle of the core to accommodate the stator windings. The three-phase windings are formed by connecting three structurally identical windings arranged symmetrically and spaced 120° electrical degrees apart in space. The coils of these windings are embedded in the stator slots according to specific rules. Their function is to generate a rotating magnetic field when supplied with three-phase AC power. The frame is typically a cast iron component; frames for large asynchronous motors are generally welded from steel plates, while frames for miniature motors use cast aluminum components. Its function is to fix the stator core and front/rear end caps to support the rotor, and to provide protection and heat dissipation. Frames of enclosed motors have cooling fins on the outside to increase the heat dissipation area. Frames of protected motors have ventilation holes in the end caps at both ends, allowing direct convection of air inside and outside the motor to facilitate heat dissipation. End caps mainly serve to fix the rotor, providing support and protection. The rotor mainly consists of an iron core and windings. The material used for the rotor core is the same as that of the stator, made by punching and stacking silicon steel sheets 0.5 mm thick. Uniformly distributed holes are punched in the outer circle of the silicon steel sheets to accommodate the rotor windings. Typically, the inner circle of the silicon steel sheets remaining after punching the stator core is used to punch the rotor core. For general small asynchronous motors, the rotor core is directly press-fitted onto the rotating shaft. For large and medium-sized asynchronous motors (with a rotor diameter above 300~400 mm), the rotor core is pressed onto the rotating shaft with the aid of a rotor spider. Rotor windings are divided into squirrel-cage rotors and wound rotors. (1) Squirrel-cage rotor: The rotor winding consists of multiple conductive bars inserted into the rotor slots and two ring-shaped end rings. If the rotor core is removed, the overall shape of the winding resembles a squirrel cage, hence the name cage winding. Small cage motors use cast aluminum rotor windings, while motors above 100KW use copper bars and copper end rings welded together. Squirrel-cage rotors are divided into several types: impedance-type rotor, single squirrel-cage rotor, double squirrel-cage rotor, and deep-bar rotor, each with different characteristics such as starting torque. (2) Wound rotor: The wound rotor winding is similar to the stator winding; it is also a symmetrical three-phase winding, generally connected in a star configuration. The three output terminals are connected to three slip rings on the rotating shaft, and then connected to the external circuit via brushes.

SAMSON motor classification

The basic components of a motor's construction include the stator, rotor, brushes, and commutator. The interaction between the stator and rotor magnetic fields drives the motor rotation. Types of brushed DC motors are classified based on how the magnetic field is generated in the motor stator or housing. Depending on the type of brushed DC motor, the stator magnetic field can be generated by permanent magnets or by windings in the stator. In the latter case, the stator windings and rotor windings can be connected in parallel, series, or compound configurations. These three types of brushed DC motors are respectively called shunt-wound motors, series-wound motors, and compound-wound motors.

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