Ansaldo motor Germany Ansaldo model Ansaldo price

Ansaldo motors have a set of adjustable eccentric blocks installed at each end of the rotor shaft, utilizing the centrifugal force generated by the high-speed rotation of the shaft and eccentric blocks 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 have six classifications, such as by starting and operating mode, and by operating speed.

Ansaldo motor mechanical characteristics

The motor can be steplessly speed-regulated. By controlling the opening of the intake or exhaust valve, i.e., controlling the flow of compressed air, the output power and speed of the motor can be adjusted. This allows achieving the goal of regulating speed and power. 2. It can rotate both forward and reverse. Most pneumatic motors can simply use a control valve to change the direction of air intake and exhaust, thereby achieving forward and reverse rotation of the pneumatic motor output shaft, with instantaneous reversal possible. During forward and reverse switching, the impact is minimal. A major advantage of pneumatic motor reversing is its ability to accelerate to full speed almost instantaneously. Vane-type pneumatic motors can reach full speed within one and a half revolutions; piston-type pneumatic motors can reach full speed in less than one second. Using a control valve to change the intake direction enables forward and reverse rotation. The time to achieve forward and reverse rotation is short, the speed is fast, the impact is small, and no load unloading is required. 3. Safe operation, unaffected by vibration, high temperature, electromagnetic fields, radiation, etc., suitable for harsh working environments, and can operate normally under unfavorable conditions such as flammable, explosive, high temperature, vibration, humidity, and dust. 4. Has overload protection function and will not fail due to overload. During overload, the motor only reduces speed or stops; when the overload is removed, it can immediately resume normal operation without causing faults such as component damage. It can operate continuously at full load for long periods with low temperature rise. 5. Has high starting torque and can start directly with load. Starting and stopping are rapid. Can start under load. Starting and stopping are rapid. 6. Wide power and speed ranges. Power ranges from a few hundred watts to tens of thousands of watts; speed can range from zero to ten thousand revolutions per minute. 7. Easy to operate and maintain. Pneumatic motors have a simple structure, small size, light weight, high power, easy operation, and convenient maintenance. 8. Uses air as the medium, with no supply difficulties; used air does not require treatment and causes no pollution when released into the atmosphere. Compressed air can be supplied centrally and transported over long distances. Due to these many advantages, pneumatic motors can work in harsh environments such as humidity, high temperature, and high dust. In addition to being used as power sources for equipment such as rock drilling, drilling, mining, and loading in mining machinery, they are also widely adopted in industries such as shipbuilding, metallurgy, chemical engineering, and paper manufacturing.

Ansaldo motor common questions

Can the motor not be connected to a 50Hz power supply? Motor design generally ensures that silicon steel sheets operate in the saturation region of the magnetization curve. When the power supply voltage is constant, reducing the frequency increases magnetic flux, which increases excitation current, leading to increased motor current and copper losses, ultimately resulting in increased motor temperature rise; in severe cases, the motor may burn out due to coil overheating. Seven, What are the causes of motor phase loss? Power supply side: (1) Poor switch contact; (2) Transformer or line break; (3) Blown fuse. Motor side: (1) Loose screws in the motor junction box causing poor contact; (2) Poor internal wiring soldering; (3) Motor winding break. Eight, What are the causes of abnormal motor vibration and noise? Mechanical aspects: (1) Poor bearing lubrication, bearing wear; (2) Excessive bearing housing clearance. (3) Loose fastening screws; (4) Debris inside the motor. Electromagnetic aspects: (1) Motor overload operation; (2) Three-phase current imbalance; (3) Phase loss; (4) Short circuit fault in stator or rotor windings; (5) Broken bars caused by open welding in the squirrel-cage rotor. Nine, What are the causes of motor bearing overheating? Motor itself: (1) Excessively tight fit between bearing inner and outer rings; (2) Issues with geometric tolerances of components, such as poor coaxiality of the frame, end caps, and shaft; (3) Improper bearing selection; (4) Poor bearing lubrication or incomplete cleaning, with debris in the grease; (5) Shaft current. Usage aspects: (1) Improper unit installation, such as non-compliant coaxiality between the motor shaft and the driven device shaft; (2) Over-tightened belt pulley; (3) Poor bearing maintenance, insufficient grease or expired grease that has dried out and deteriorated. Ten, What are the causes of low motor insulation resistance? (1) Windings damp or water ingress; (2) Accumulation of dust or oil on windings; (3) Insulation aging; (4) Damage to motor lead wires or terminal board insulation.

Ansaldo motor performance

The construction of the motor stator is basically similar to that of a capacitor-split-phase single-phase asynchronous motor. Its stator is equipped with two windings positioned 90° apart: one is the excitation winding Rf, which is always connected to the AC voltage Uf; the other is the control winding L, connected to the control signal voltage Uc. Therefore, AC servo motors are also called two-phase servo motors. The rotor of an AC servo motor is usually squirrel-cage type, but to enable the servo motor to have a wide speed regulation range, linear mechanical characteristics, no 'self-rotation' phenomenon, and fast response performance, it must have two characteristics compared to ordinary motors: high rotor resistance and low moment of inertia. There are two commonly used rotor structures: one is a squirrel-cage rotor made of high-resistivity conductive material with high-resistance bars; to reduce the rotor's moment of inertia, the rotor is made slender; the other is a hollow cup-shaped rotor made of aluminum alloy, with very thin cup walls, only 0.2-0.3mm. To reduce the magnetic reluctance of the magnetic circuit, a fixed inner stator is placed inside the hollow cup-shaped rotor. The hollow cup-shaped rotor has a very small moment of inertia, rapid response, and smooth operation, so it is widely adopted. When there is no control voltage, the AC servo motor stator only has a pulsating magnetic field generated by the excitation winding, and the rotor remains stationary. When there is a control voltage, a rotating magnetic field is generated in the stator, and the rotor rotates in the direction of the rotating magnetic field. Under constant load, the motor speed changes with the magnitude of the control voltage; when the phase of the control voltage is reversed, the servo motor will reverse.

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