May 10, 2023

What Is the Difference Between AC and DC Geared Motors?

The geared motor is an integrated device of the reducer and the motor, also known as the geared motor. Professional manufacturers integrate and assemble gearboxes and motors for sale. A geared motor is a device that connects, drives, decelerates, and increases torque. AC/DC geared motors have the advantages of low energy consumption, superior performance, small size, compact structure, reliability and durability.

According to the speed, the motor itself can be divided into low speed (low speed) motor and high speed (high speed) motor. According to the function, there are drive motor and control motor. No matter what kind of motor, there is a rated speed and torque. To get variable speed, a special controller or governor is needed to control the speed, but this adds cost and leads to a higher motor price. On the other hand, the performance of the motor will also decline to varying degrees after speed regulation. In this case, geared motors can perfectly solve this problem.

1. What is the difference between AC and DC geared motors?

The geared motor is equipped with a gear box at the output end of the motor. AC gear motors and DC gear motors are two types of gear motors divided according to their working power. The power source used is alternating current, such as 110 volts, 120 volts, 220 volts, 240 volts. The DC geared motor uses DC power as the power supply, such as 12V, 24V, 48V.

The gear reduction motor is based on the ordinary motor, plus a reduction box. The role of the gearbox is to provide lower speed and higher torque. In addition, different reduction ratios of gearboxes can provide different speeds and torques. The higher the gear ratio, the lower the speed and the greater the torque. For example, there is an AC geared motor, when its gear ratio is 50:1, the speed is 30rpm, when its gear ratio is 25:1, the speed is 60rpm, when the gear ratio is 15:1, the speed can reach 100 rpm.

2. There are two types of geared motors, and different types have different data functions. The details are as follows:

(1) Classified by motor

· AC motors (including motors with brakes or clutches): three-phase AC gear motors and single-phase AC gear motors.

· DC motors (including those with brakes or clutches): electromagnetic gear motors and permanent magnet gear motors. Brushless DC motors and brushed DC motors.

· AC (DC) servo motor.

· Various control motors, air motors and hydraulic motors.

· Synchronous motor and asynchronous motor.

(2) Classified by gearbox transmission mode

·Gear transmission: including helical gears, worm gears, parallel shaft gears, right angle gears, helical (bevel) gears, helical gears, and planetary gears. Gear transmission is the most classic transmission mode, with a single-stage transmission efficiency as high as 98%, compact structure, high reliability, and large power range (up to 40 horsepower).

·Cycloidal pin wheel, sprocket gear.

·Harmonic drive.

3. Gear motor application

(1) AC geared motor application
AC geared motors are usually high-power geared motors, such as 1 horsepower, 2 horsepower, 3 horsepower, 5 horsepower, etc. AC geared motors are mainly used in metallurgy, coal, building materials, shipbuilding, water conservancy, electric power, generators, construction machinery and petrochemical industries. In addition, it is widely used in construction, cement, environmental protection, electronic appliances, industrial automation, chemical industry, mining, transportation, rubber, plastic, petroleum, metal and other machinery.

(2) DC geared motor application
DC geared motors are usually low-power geared motors, generally no more than 0.5 horsepower. DC geared motors are often sold in custom specification models. Widely used in smart home, car drives, electronic products, medical equipment, robot drives and other fields. In addition, DC geared motors are also used in rolling shutter doors, air conditioners, massage chairs, micro-instruments, smart pan-tilts, vending machines, barbecue shops, electronic locks, washing machines, mixers, cement mixers, electric toothbrushes, smart mice, car tailgates, etc. in consumer goods.