Let's take a look at the advantages and disadvantages of common quality judgment method of dc geared motor

First, electromagnetic induction quality judgment method of dc geared motor

It is composed of single-speed multi-speed squirrel cage induction motor and electromagnetic induction moving clutch. It is also known as the climbing mode motor. It is a constant torque communication communication infinite quality judgment method of dc geared motor. Widely used in printing equipment, stapling machine, wireless network ordering, high frequency drying equipment, drive chain boiler grate operation.

Advantages: Compact structure, small volume control system, low price. Reliable operation, convenient maintenance. There's no harmonic interference.

Defects: high speed loss, because the electromagnetic induction mobile clutch itself has a very large movement, the input shaft of the large speed ratio is only 80% to 90% of the motor at the same stage transmission; In the variable speed link, all the transmitted output power is converted into heat damage, the efficiency is not high, and the hot problem is more serious.

Second, frequency conversion quality judgment method of dc geared motor

Variable frequency quality judgment method of dc geared motor is the general term of motor driven by variable frequency governor. Variable frequency motor, commonly referred to as variable frequency motor, is a general term for a motor driven by a variable frequency governor. The special motor for frequency conversion governor is in fact a special motor for frequency conversion. Driven by frequency conversion, the motor can achieve different types of speed ratios and rotas to meet the needs of load changes.

Advantages: no additional moving damage, high efficiency, wide starting torque; For low load use time is more, or more frequent start and stop the actual operation, can achieve the effect of saving power engineering protection and motor.

Drawbacks: More technical complexity

Three, change a lot of speed motor

In some special drag circuit boards, single-speed motors are required; Sometimes even three or four speed motors are necessary. The basic principle and control measures of this multi-speed motor are basically the same. Widely used in CNC lathes, mining, metallurgical industry, textiles, printing and dyeing plants, chemical plants and other transmission machinery. According to the different interface modes of the same winding and the multiple winding interface modes of the same motor, the multi-speed ratio of the same motor is solved.

Advantages: no additional movement damage, high efficiency; Simple control loop, convenient maintenance, high quality and low price; The electromagnetic induction moving clutch can achieve stable and efficient speed change.

Defects: stepless speed regulation, it is difficult to achieve stepless stable speed change. Because of the motor structure and processing technology limitations, generally only 2 to 3 kinds of pole logarithmic step speed changes are completed, and the speed ratio category is very limited.

4, DC motor to adjust the synchronous motor operating voltage and excitation speed change

Dc motor is a kind of electrodeless motor with good variable speed characteristics, but its large starting speed is limited by the existence of motor commutator.

Advantages: high speed transmission cost performance, a variety of transmission methods, high efficiency.

Defects: Can not be used for high-speed operation, must be equipped with motor carbon brush and motor commutator.

quality judgment method of dc geared motor https://www.dydzmotor.com/What-are-the-precautions-for-the-use-and-selection-of-DC-geared-motors.html