TF090 Series High Precision Planetary Gearbox Helical Gear Reducer

Overview

TF090 Series High Precision Planetary Gearbox Helical Gear Reducer is a type of gearbox that is widely used in various industries, including automation, medical, aerospace, precision instrument, automotive manufacturing, robotics, and logistics automation. It is also known as servo motor planetary gearbox and low backlash planetary gearbox. TF090 Series High Precision Planetary Gearbox Helical Gear Reducer is a compact, high efficient, and low noise gearbox that is easy to install and maintain. It can provide precise and smooth motion control for different applications. Below is an image of the gearbox:

Basic Construction

The high precision planetary gearbox consists of several key components, including:

• Sun Gear: The sun gear is located at the center of the planetary gearbox and is usually connected to the input shaft or fixed to the housing as a stationary part.
• Planet Gears: The planet gears rotate around the sun gear and are supported and kept in relative positions to each other by the planet carrier. Each planet gear meshes with both the sun gear and the ring gear, and when power is input, they share and distribute the load.
• Planet Carrier: The planet carrier is a structure with multiple planet gear shaft holes that supports the planet gears and allows them to rotate relative to the sun gear. The planet carrier can be used as an output element or connected to another shaft to transmit or receive torque.
• Ring Gear/Annulus: The ring gear is a large diameter circular gear fixed inside the housing with teeth on both the inner and outer surfaces that mesh with the planet gears. In some applications, the ring gear can also serve as an input or output end.
• Bearings and Shaft System: The bearings in the high precision planetary gearbox are used to support the input shaft, output shaft, and planet carrier, ensuring stable rotation and smooth operation of the various components.
• Housing and Seals: The housing is the external framework of the gearbox that protects the internal components from external environmental effects and provides installation interfaces. Seals ensure that internal lubricants do not leak and prevent dust and water from entering the gearbox.

Here is an image showing the high precision planetary gearbox construction:

Working Principle

The high precision planetary gearbox works based on the following principles:

1. Torque Transmission: When power is input to the sun gear, the planet gears around the sun gear rotate. Because the planet gears mesh with both the sun gear and the ring gear, they perform self-rotation on their own axes while revolving around the center of the sun gear with the planet carrier. In this way, the torque input to the sun gear is amplified and evenly distributed to the planet carrier at the output end through the planet gears.
2. Speed Conversion and Torque Amplification: By adjusting the gear ratio of different components, speed conversion and torque amplification between input and output can be achieved. Generally, when the number of planet gears increases or the gear ratio increases, the effect of torque amplification becomes more significant, but the output speed will decrease at the same time.
3. Low Backlash Design: In high precision applications, to ensure accurate position control and minimal mechanical clearance, high precision planetary gearboxes use preload technology to reduce or eliminate the clearance between gears, i.e., "zero/low backlash" design.
4. Load Distribution and Dynamic Response: One important advantage of the planetary gear mechanism is that it can evenly distribute the load among multiple planet gears, thereby increasing the bearing capacity and stability of the entire system and optimizing the dynamic response performance.

Here is an image showing the servo motor planetary gearbox:

Design and Selection Considerations

When designing and selecting high precision planetary gearboxes, the following factors should be taken into consideration:

Applications

The high precision planetary gearbox has a wide range of applications, including:

• Servo Motor Systems: It is used together with servo motors for precise speed control and position positioning in industrial automation equipment, such as robot joint drives, precision machine tool feed mechanisms, and semiconductor manufacturing equipment.
• Medical Equipment: It is used to achieve precise motion control and torque amplification in high-end medical equipment, such as CT scanners, MRI machines, and surgical robots.
• Aerospace: It is used in aircraft landing gear retracting systems, flight control system actuators, and satellite attitude adjustment devices that require high reliability and precision.
• Precision Instruments: It is used in scientific experimental equipment, precision measuring instruments, and optical tracking systems that have extremely high requirements for transmission accuracy.
• Automotive Manufacturing: It is used in power steering systems of new energy vehicles, drive units of electric vehicles, and transmission systems of high-performance racing cars.
• Robotics: It is used in the joint transmission parts of industrial robots, service robots, and special operation robots.
• Logistics Automation: It is used in lifters, conveyor drives, and AGVs (Automatic Guided Vehicles) of automatic warehouse systems.

About Our Company

We are a research, production, and sales-oriented professional manufacturer of power transmission equipment located in Ningbo, Zhejiang. We operate strictly according to the international quality management system standard ISO9001:2015, and our products have passed the compulsory CCC certification in China and the CE certification in the European Union. Our products are produced according to international IC standards and have reached the advanced level of similar products internationally. Here is an image of our servo motor planetary gearbox:

Our advantages include:

• Rich experience in the field of power transmission equipment
• Advanced production technology and equipment
• Strict quality control system
• Professional and efficient technical support and after-sales service
• Cost-effective and customized solutions for different customers

Author: Miya