speck pumpen motor, German speck pumpen model, speck pumpen price

speck pumpen motor refers to a low-power single-phase asynchronous motor powered by a single-phase AC supply (AC220V). This type of motor typically has two-phase windings on the stator, and the rotor is of the standard squirrel-cage type. Different distributions of the two-phase windings on the stator and different power supply conditions can produce different starting and operating characteristics.

speck pumpen motor applications

The most widely used motors are AC asynchronous motors (also known as induction motors). They are easy to use, reliable in operation, low in price, and robust in structure, but have a low power factor and speed regulation is difficult. Synchronous motors are commonly used for high-capacity, low-speed prime movers. Synchronous motors not only have a high power factor, but their speed is independent of the load size and is determined solely by the grid frequency. Operation is relatively stable. DC motors are often used in applications requiring wide-range speed regulation. However, they have commutators, complex structures, high prices, and are difficult to maintain, making them unsuitable for harsh environments. After the 20s in the 70th century, with the development of power electronics technology, AC motor speed control technology gradually matured, equipment prices decreased, and applications began to emerge. The maximum output mechanical power that a motor can handle under a specified duty cycle (continuous, short-time, intermittent periodic) without causing overheating is called its rated power; attention should be paid to the ratings on the nameplate during use. During motor operation, care must be taken to match the load characteristics with the motor characteristics to avoid runaway or stalling. Motors can provide a wide range of power, from milliwatts to tens of megawatts. The use and control of motors are very convenient, featuring capabilities such as self-starting, acceleration, braking, reversal, and holding, meeting various operational requirements; motors have high efficiency, produce no smoke or odor, do not pollute the environment, and generate low noise. Due to these advantages, they are widely used in industrial and agricultural production, transportation, national defense, commerce, household appliances, and medical electrical equipment. Generally, when a motor's speed is regulated, its output power varies with the speed.

speck pumpen motor structure

The motor consists of two basic parts: a stationary stator and a rotating rotor. The rotor is installed inside the stator cavity and is supported by bearings on two end covers. To ensure the rotor can rotate freely within the stator, there must be a gap between the stator and the rotor, known as the air gap. The air gap of an electric motor is a very important parameter; its size and symmetry significantly affect the motor's performance. Figure 2 shows the components of a three-phase squirrel-cage asynchronous motor. The stator consists of three-phase stator windings, a stator core, and a frame. The three-phase stator windings are the circuit part of the asynchronous motor and play a crucial role in its operation, serving as the key component for converting electrical energy into mechanical energy. The structure of the three-phase stator windings is symmetrical, generally having six output terminals U1, U2, V1, V2, W1, W2, located in the junction box outside the frame, connected in star (Y) or delta (△) configuration as needed. The stator core is part of the magnetic circuit of the asynchronous motor. Since the main magnetic field rotates relative to the stator at synchronous speed, to reduce losses induced in the core, the core is made of stacked high-permeability silicon steel sheets with a thickness of 0.5mm. Both sides of the silicon steel sheets are coated with insulating varnish to reduce eddy current losses in the core. The frame, also known as the housing, primarily supports the stator core and also withstands the reaction forces generated during the motor's loaded operation. Heat generated by internal losses during operation is dissipated outward through the frame. Frames for medium and small motors are generally made of cast iron. For large motors, where casting is inconvenient due to size, welded steel plates are commonly used.

speck pumpen motor structure

This motor component consists of an internal gear ring and a matching gear or rotor. The internal gear ring is fixed to the housing. Oil entering through the oil port pushes the rotor to revolve around a central point. This slowly rotating rotor drives the output via a splined shaft, forming a cycloidal hydraulic motor. After the introduction of this initial cycloidal motor, decades of evolution led to the formation of another concept of motor. This motor installs rollers within the built-in gear ring. Motors with rollers can provide higher starting and running torque; the rollers reduce friction, thereby improving efficiency, allowing the output shaft to produce stable output even at very low speeds. By changing the direction of input and output flow, the motor can rapidly reverse and produce equivalent torque in both directions. Each series of motors offers various displacement options to meet different speed and torque requirements.

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