How to Select Gear Motors
2023-09-28Updated on:
Let us to learn more about structure and funtion of the gear motors.
The geared motor, also known as a gear reduction motor or speed reducer motor, is a reduction transmission mechanism that integrates a motor and a gear unit to drive a closed transmission gear system. Its purpose is to reduce speed and increase torque to meet the requirements of mechanical equipment operation.
Applications of geared motors include:
Speed reduction: By using a gear reduction unit, the geared motor achieves the desired output speed, which is lower than the motor's speed.
Torque amplification: Under the same power conditions, a geared motor with a slower output speed generates greater torque, and vice versa.
Change of transmission direction: For example, using two bevel gears allows the transfer of force in a perpendicular direction to another rotating shaft.
Clutch function: By adding a brake or clutch, instant braking can be achieved when the power is disconnected.
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What Are the Different Gear Motor Types?
Gear motor is a widely used speed reduction transmission device, primarily composed of an integrated assembly of a driving motor (motor) and a gearbox (reducer). It is also known as a 'geared motor' or 'reduction motor.' The driving motor can be a DC motor, brushed motor, brushless motor, stepper motor, hollow cup motor, servo motor, etc. The gearbox reducer can be a planetary gearbox, cylindrical gearbox, parallel gearbox, worm gear gearbox, screw gear gearbox, etc. Based on the type of driving motor, it can be classified into DC geared motor, stepper geared motor, brushed geared motor, brushless geared motor, hollow cup geared motor, etc. Based on the type of gearbox structure, it can be classified into planetary gear reducer, gear reducer, worm gear reducer, parallel gear reducer, screw gear reducer, etc. Different types of geared motors have different application characteristics
Gear Motor Applications
A. Industry Domain
Mechanical Industry:
Gear motor reducers are widely used in the mechanical manufacturing industry, including areas such as steel and metallurgy, mining machinery, petrochemicals, food machinery, ship machinery, excavating machinery, printing machinery, and water pump machinery. They can be used for transmitting high power and handling instantaneous shock loads.
Power Industry:
Gear motor reducers are used in the power industry for applications such as wind power generation and hydroelectric power generation. They can reduce the high-speed rotation of the generator rotor and transmit it to the generator on the power generation unit, enabling it to reach the rated speed and assisting in carrying the heavy turbine to generate electricity.
Water Pump Field:
Gear motor reducers are used in water pump applications such as automotive water pumps, fire pumps, and sewage pumps. They can lower the motor's speed to achieve effects such as reducing the flow rate of the water pump output and increasing the pump's head.
B. Life Domain:
Household Appliances:
Gear motor reducers can be applied in small household appliances such as coffee machines, wine machines, and juicers, providing reliable transmission and stable power output.
Lawn Machinery:
Gear motor reducers are widely used in lawn machinery, including lawnmowers, trimmers, and more. The gear reducer lowers the engine's speed to increase the output torque and synchronizes with the blade's speed, enabling continuous operation of the lawn machinery.
Why Use Gear Motor?
When the output speed of the motor is too high and does not match, while maintaining a large output torque, a deceleration motor can be selected. The so-called electric gear motors can be divided into two categories:
1. Gear motor that can be adjusted using a motor. For example: Brushed, brushless DC gear motors, AC gear motors, etc.
2. Install a reducer on the motor to form a complete electric gear motors
Gear Motor Advantages
Advantages of Gear motors: gear motors are manufactured in accordance with technical requirements and have high technological content. Space saving, reliable and durable, with high overload resistance, power can reach over 95KW, and the minimum power can reach 0.1W. Low energy consumption, superior performance, and good gearbox performance of over 95%. Low vibration, low noise, high energy saving, using high-quality forged steel material, steel cast iron box, and high-frequency heat treatment on the gear surface.
Advantages of planetary gear reduction motors: Planetary gear reduction motors have the characteristics of small size, light weight, high load-bearing capacity, long service life, smooth operation, low noise, high output torque, large speed ratio, good performance, and safety. It has the characteristics of both power splitting and multi tooth meshing.
Advantages of DC gear motors: DC gear motors have low oscillation, low noise, high energy efficiency, use high-quality forged steel materials, rigid cast iron box, and high-frequency heating of the gear surface; Adopting a new sealing device, it has good protection performance and strong adaptability to the environment, and can work continuously in harsh environments such as corrosion and humidity.
Advantages of a stepper motor: The angle at which the stepper motor rotates is directly proportional to the number of motor pulses; When the stepper motor stops rotating, it has the maximum torque (when the winding is excited). Due to the accuracy of each step being between 3% and 5%, exceeding the load will disrupt the synchronization of the motor. Moreover, the error from the previous step will not accumulate to the next step, resulting in good positional accuracy and repeatability of motion;
Gear Motor Solution Expert
At Biote motor, our motor experts are here to guide you to the ideal electric drive solutions for your unique application. Whether you need a motor to connect to your existing gearing or need help to create a customized gear motor for applications such as medical equipment, lawn mower, window door, swimming pool robotic cleaner, food & beverage equipment, and material handling equipment, we can help. Contact a member of our email sales@cnbiote.com or connect with us online.