PITTMAN motor Germany PITTMAN model PITTMAN price

PITTMAN motor refers to a motor that can operate on both DC and AC power supplies. This type of electric motor is widely used in household appliances, manual devices, computing tools, and precision machinery. In addition, it is frequently used in medical equipment, communication technology, measurement technology, the film industry, and many other fields.

PITTMAN 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, and 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 type of motor installs rollers within the built-in gear ring. Motors with rollers 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. Changing the direction of input and output flow allows the motor to reverse quickly and produce equivalent torque in both directions. Each series of motors offers various displacement options to meet different speed and torque requirements.

PITTMAN motor mechanical characteristics

The advantages of this motor are its simple structure, lack of windings on the rotor, low maintenance cost, and long service life. It is used in many occasions, almost covering all fields such as daily life, factory equipment, ports and terminals, and oil and coal mines. Squirrel-cage motors occupy an important position in the large family of electric motors. Their advantages include simple structure, durability, reliable operation, high efficiency, convenient maintenance, and low price; their disadvantages include low power factor and poor speed regulation performance (however, with the emergence of single-winding multi-speed motors and the adoption of thyristor stepless speed control, speed regulation performance is improving). Squirrel-cage motors have a wide range of applications and are widely used in China's industrial and agricultural production. According to statistics from relevant departments, about 90% of mechanically driven equipment uses squirrel-cage motors. This type of motor has the largest social ownership, and its electricity consumption accounts for more than 85% of the total power load consumption. Factory, mine, and rural electricians mainly install, maintain, and service this type of motor in their daily work. Since motor repair is relatively complex, requiring repair personnel to have not only professional knowledge and technical skills in repair but also various specialized equipment and materials, which general electricians do not possess, repairing motors presents certain difficulties.

PITTMAN motor advantages

The motor can be installed integrally on the wheel axle, forming an integrated direct-drive system, where one wheel axle is one drive unit, eliminating the need for a gearbox. Advantages of permanent magnet synchronous motors: High power efficiency and high power factor of the permanent magnet synchronous motor itself; low heat generation, resulting in a simple motor cooling system structure, small volume, and low noise; the system adopts a fully enclosed structure, with no transmission gear wear, no transmission gear noise, oil-free, and maintenance-free; permanent magnet synchronous motors allow high overload current, significantly improving reliability; the entire transmission system is lightweight, with unsprung weight lighter than traditional wheel axle transmissions, and high power per unit weight; due to the absence of a gearbox, the bogie system can be designed freely, such as flexible bogies and single-axle bogies, greatly improving train dynamic performance. Due to the use of permanent magnet material poles, especially rare earth metal permanent magnets (such as neodymium iron boron), which have high magnetic energy product, higher air gap flux density can be achieved. Therefore, at the same capacity, the motor is smaller in volume and lighter in weight. The rotor has no copper or iron losses, nor friction losses from slip rings and brushes, resulting in high operating efficiency. Small moment of inertia, large allowable pulse torque, high acceleration, good dynamic performance, compact structure, and reliable operation.

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