Question 1: What are the classifications of motors 1 brushless dc motor Brushless dc motor (BLDCM) is developed on the basis of brush dc motors, but its drive current is uncompromisingly ac; Brushless dc motors can be divided into brushless rate motors and brushless torque motors. Generally, there are two types of drive currents for brushless motors, one is trapezoidal wave (generally "square wave"), and the other is sinusoidal wave. The former is sometimes called a brushless DC motor, and the latter is called an AC servomotor, or rather a type of AC servomotor. Brushless DC motors are usually of "slender" construction in order to minimize the moment of inertia. Brushless DC motors are much smaller in weight and volume than brushed DC motors, and the corresponding moment of inertia can be reduced by about 40%-50%. Due to the processing problems of permanent magnet materials, brushless DC motors generally have a capacity of less than 100kW. This motor's mechanical characteristics and regulation characteristics of the linearity of good, wide speed range, long life, easy maintenance and low noise, there is no brush caused by a series of problems, so this motor in the control system has great potential for application. 2 stepper motor The so-called stepper motor is a kind of electric pulse into angular displacement of the actuator; more generally speaking: when the stepper driver receives a pulse signal, it will drive the stepper motor according to the set direction of rotation of a fixed angle. We can control the number of pulses to control the motor's angular displacement, so as to achieve the purpose of precise positioning; at the same time, you can also control the frequency of pulses to control the motor rotation speed and acceleration, so as to achieve the purpose of speed regulation. At present, the more commonly used stepping motors include reactive stepping motor (VR), permanent magnet stepping motor (PM), hybrid stepping motor (HB) and single-phase stepping motor. The difference between stepper motor and ordinary motor mainly lies in the form of its pulse drive, and it is this feature that stepper motor can be combined with modern digital control technology. However, the stepper motor is inferior to the traditional closed-loop control DC servo motor in terms of control accuracy, speed variation range, and low-speed performance; therefore, it is mainly used in occasions where the accuracy requirements are not particularly high. Because the stepper motor has a simple structure, high reliability and low cost, so the stepper motor is widely used in various fields of production practice; especially in the field of CNC machine tool manufacturing, because the stepper motor does not need A/D conversion, can be directly converted to digital pulse signals into angular displacement, so it has always been regarded as the most ideal CNC machine tool actuating elements. In addition to their use in CNC machine tools, stepper motors can also be used in other machinery, such as as motors in automatic feeders, as motors in general-purpose floppy disk drives, and also in printers and plotters. In addition, stepper motors also have many defects; due to the existence of no-load starting frequency of stepper motors, so stepper motors can run normally at low speeds, but if higher than a certain speed can not start, and accompanied by a sharp whistling sound; different manufacturers of subdivision drive accuracy may vary greatly, the larger the subdivision accuracy is more difficult to control; and, stepper motors rotate at low speeds when there is a large amount of vibration and noise. 3 servo motor Servo motor is widely used in a variety of control systems, can be converted to the input voltage signal on the motor shaft mechanical output, dragging the controlled components, so as to achieve the purpose of control. Servo motor has DC and AC points; the earliest servo motor is a general DC motor, in the case of control accuracy is not high, only the use of general DC motor as a servo motor. The current DC servo motor from the structure, is a small power DC motor, its excitation more armature control and magnetic field control, but usually use the armature control. Classification of rotary motors, DC servo motor in the mechanical characteristics can be very good to meet the requirements of the control system, but due to the existence of the commutator, there are many shortcomings: the commutator and the brush is easy to produce sparks between the drive to interfere with the drive work, can not be applied in the presence of combustible gases; brushes and commutator friction exists, which will produce a large dead zone; complex structure, maintenance is more difficult. AC servo motor is essentially a two-phase asynchronous motor, there are three main control methods: amplitude control, phase control and amplitude-phase control. Generally, the servo motor requires the motor speed to be controlled by the added voltage signal; the speed can be changed continuously with the change of the added voltage signal; the motor should be reflected quickly, the volume should be small, and the control power should be small. Servo motor is mainly used in various motion control systems, especially ...... >>
Question 2: What are the types of motors? Motor Classification
I. DC motor
1, DC motor
a, permanent magnet DC motor
b, electromagnetic DC motor
c, DC torque motors
2, permanent magnet linear DC motor
a, ?κ Street Bikkow Velvet?
b, swing linear motor
3, brushless DC motor
a, slotted armature brushless DC motor
b, non-slotted armature brushless DC motor
c, wound coil armature brushless DC motor
d, sheet armature brushless DC motor
e, brushless DC torque motor
4, AC and DC dual-purpose motors
5, motor enlarger
6, converter
Second, AC motors
1, asynchronous motor
a, three-phase asynchronous motor
b, single-phase asynchronous motor
2, AC servo motor
a, squirrel cage rotor servo Motor
b, non-magnetic hollow cup rotor servo motor
3, AC torque motor
4, synchronous motor
a, permanent magnet synchronous motor
b, hysteresis type synchronous motor
c, reluctance type synchronous motor
d, electromagnetic reduction type synchronous motor
< p> 5, AC Linear Motor
a, Synchronous Linear Motor
b, Asynchronous Linear Motor
6, AC Generator
a, Synchronous Generator
b, Asynchronous Generator
Question 3: What are the types of motors? DC motors, AC motors, three-phase motors, single-phase motors, synchronous motors, asynchronous motors, servo motors, stepper motors hacking motors, speed motors, the above are commonly used
Question 4: What are the classifications of electric motors? Whether the output power is divided into: generators and motors
motor according to the use of power supply is divided into DC motors and AC motors; DC motors are divided into self-excited, other excitation, parallel-excited, re-excited; AC motors can be divided into single-phase motors and three-phase motors according to the power supply; according to the rotation can be divided into: synchronous and asynchronous motors; according to the form of the rotor can be divided into squirrel-cage and winding motor; there are also According to the rotor form can be divided into squirrel-cage motor and wire-wound motor; in addition, there is a special type called servo motor, which can realize the precise control of mechanical action.
Question 5: What are the motors in life Interactive machine that can be a lot.
Almost all appliances are used.
For example, washing machines, air conditioners, hoods, shavers and so on, most of the electrical appliances are used with electric motors, different sizes.
Electric fans, hairdryers, hair dryers, electric cars, and many, many more!
Question 6: What are the Chinese famous brand motor Shanghai motor, Anhui Wannan motor, Hadian, Dongfang motor, Shen electric, Lan electric, Xiangtan motor, Shandong Huali, Changsha Changli, Chongqing Saili League motor, Jiamusi motor, Jiangsu Dazhong motor, Nanyang explosion-proof. All are good brands.
Question 7: What are the common motor power? Standard motor power grades:
0.18
0.25
0.37
0.55
0.75
1.1
1.5
2.2
3
4
5.5
7.5
11
15
18.5
22
30
37
45
55
75
90
110
132
160
200
250
315 and so on
Question 8: What are the brand motors foreign brands: Japan's Mitsubishi, Yasukawa, Sanyo, Panasonic and Fuji, etc., the German Siemens, Germany, Germany, SCHORCH (Germany, Schorch) motors, the U.S. GROSCHOPP motors, Switzerland, ABB and so on.
Domestic:
AC motors: Jiamusi motor Xiangtan motor Hong Kong Dechang motor
DC motors: Shanghai motor Harbin motor
Explosion-proof motor: Nanyang motor
Speed motors: Shanghai Nanyang motor
Stepping motors: Changzhou Bao Lai Electric
Here are some that I have not heard much about.
Germany AVITEQ motor Germany ELAU servo motor Germany ENGEL motor Germany Phytron stepping motor Germany vem motor Germany Bauder servo motor Germany BAUER motor U.S. kollmorgen (Kollmorgen) motors U.S. LINMOTOR motors U.S. MCG DC brushless motors U.S. MCG DC brush motors U.S. PACIFIC servo motor U.S. Pacific stepper motor Spain VASCAT motor Singapore minet stepper motor Japan Oriental motor
Question 9: What are the brands of motors? There are many types of motors such as micro motors for home appliances, industrial motors, special motors and so on too much, there are industry websites in this area, you can go online to view.