KOBOLD motor, Germany KOBOLD model, KOBOLD price

KOBOLD motor refers to a low-power single-phase asynchronous motor powered by a single-phase AC power 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.

KOBOLD motor classification

Motor classification: 1. Hydraulic motor: Conventionally refers to an energy conversion device that outputs rotational motion, converting hydraulic energy provided by a hydraulic pump into mechanical energy. 2. High-speed motor: Gear motors have the advantages of small size, light weight, simple structure, good manufacturability, insensitivity to oil contamination, shock resistance, and low inertia. Disadvantages include large torque ripple, low efficiency, low starting torque (only 60% to 70% of rated torque), and poor low-speed stability. 3. Vane motor: A hydraulic motor in which vanes in the rotor slots contact the housing (stator ring), causing the rotor to rotate under the action of incoming fluid. Compared with other types of motors, vane motors have the advantages of compact structure, smaller outline dimensions, low noise, and long service life. Their inertia is smaller than that of piston motors, but their contamination resistance is worse than that of gear motors, and the speed cannot be too high, generally operating below 200r/min. Due to significant leakage, vane motors are unstable under load changes or at low speeds. 4. Radial piston motor: Has good reverse characteristics, making motor operation absolutely quiet, suitable for servo systems. Can operate bidirectionally as a motor or pump. 5. Axial piston motor: A shaft-distributed cycloidal hydraulic motor with rolling bearing support, adopting an integrated design of the output shaft and distribution mechanism, inserted-tooth stator and rotor, rolling bearing support at both ends, and special imported rotary seals, allowing the motor to operate under higher back pressure. 6. Low-speed hydraulic motor: Simple structure, reliable operation, many varieties and specifications, low price. Its disadvantages are large volume and weight, and large torque ripple. 7. Cycloidal motor: A small, low-speed, high-torque hydraulic motor with internal meshing cycloidal gears. Its structure is simple, it has good low-speed performance, and strong short-term overload capacity. Inside the cycloidal motor, there is a stator and a moving vane; the stator, vane, and drive shaft divide the motor into two chambers, each with an oil port. When one port admits oil, the other discharges it, and the incoming oil pushes the vane to swing. 8. Piston-type pneumatic motor: Composed of connecting rods, crankshaft, pistons, cylinders, body, and air distribution valve. Compressed air supplies each cylinder sequentially through the air distribution valve, expanding to perform work, and pushing the crankshaft to rotate via the connecting rods. Its power mainly comes from gas expansion work.

KOBOLD motor structure

Motors are divided into two forms according to rotor structure: squirrel-cage (squirrel-cage asynchronous motor) and wound-rotor asynchronous motor. Asynchronous motors operating as motors. Because the rotor winding current is induced, they are also called induction motors. Asynchronous motors are the most widely used and highest-demand type among various motors. In electrically powered machinery in various countries, about 90% are asynchronous motors, among which small asynchronous motors account for more than 70%. In the total load of the power system, the electricity consumption of asynchronous motors accounts for a significant proportion. In China, the electricity consumption of asynchronous motors accounts for more than 60% of the total load. An asynchronous motor is an AC motor whose speed under load is not constant relative to the connected grid frequency. An induction motor (Induction motor) is an asynchronous motor with only one set of windings connected to the power supply. Where it does not cause misunderstanding or confusion, an induction motor can generally be referred to as an asynchronous motor. The IEC standard points out: The term "induction motor" is actually used as a synonym for "asynchronous motor" in many countries, while some other countries use only the term "asynchronous motor" to represent both concepts.

KOBOLD motor mechanical characteristics

The advantages of the motor are simple structure, no windings on the rotor, low maintenance cost, and long service life. It is used in many occasions, almost in all fields such as daily life, factory equipment, ports and terminals, oil fields, and coal mines. Squirrel-cage motors occupy an important position in the vast family of motors. Their advantages are simple structure, robustness and durability, reliable operation, high efficiency, convenient maintenance, and low price; their disadvantages are low power factor and poor speed regulation performance (but with the emergence of single-winding multi-speed motors and the adoption of thyristor stepless speed regulation, speed regulation performance is improving). Squirrel-cage motors have a wide range of applications and are widely used in industrial and agricultural production in our country. 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 and mine electricians 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.

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