TNF115 Series High Precision Planetary Gearbox Helical Gear Reducer

TNF115 Series High Precision Planetary Gearbox Helical Gear Reducer Overview

TNF115 Series High Precision Planetary Gearbox Helical Gear Reducer, also known as servo motor planetary gearbox and low backlash planetary gearbox, is a precision gearbox that can provide accurate and reliable power transmission in various industrial applications. It is commonly used in applications that require precise positioning, high torque, and low backlash. The gearbox features a compact size, high efficiency, and low noise. The following paragraphs will explain the basic structure, working principle, design considerations, and applications of this gearbox.

High Precision Planetary Gearbox Basic Structure

A high precision planetary gearbox consists of several basic components, including:

• Sun Gear: located at the center of the planetary gearbox, the sun gear is usually fixed to the input shaft or the gearbox housing as a stationary component.
• Planet Gears: surrounding the sun gear, the planet gears rotate and mesh with the sun gear and the ring gear. They are supported by the planet carrier and distribute the load when power is input.
• Planet Carrier: a structure with multiple planet gear shaft holes, the planet carrier supports the planet gears and allows them to rotate around 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: a large-diameter circular gear fixed inside the gearbox housing, the ring gear meshes with the planet gears. In some applications, the ring gear can also be used as an input or output.
• Bearings and Shaft System: bearings are used in a high precision planetary gearbox to support the input shaft, output shaft, and planet carrier, ensuring stable rotation and smooth operation of the components.
• Housing and Seals: the gearbox housing is the external frame of the gearbox, providing protection for the internal components and installation interfaces. Seals ensure that the internal lubricant does not leak and prevent dust and water from entering the gearbox.

Explanation of Each Component

1. The sun gear provides the input power to the planetary gearbox. It can be fixed to the input shaft or the gearbox housing and serves as a stationary element.
2. The planet gears rotate around the sun gear and mesh with the sun gear and the ring gear. They distribute the input load and output the power to the planet carrier.
3. The planet carrier supports the planet gears and allows them to rotate around the sun gear. It can be used as an output element or connected to another shaft to transmit or receive torque.
4. The ring gear is a large circular gear fixed inside the gearbox housing, meshing with the planet gears. It distributes the output power and can also be used as an input or output element.
5. The bearings and shaft system ensure the stable rotation and smooth operation of the gearbox components.
6. The housing and seals provide protection for the internal components and prevent dust and water from entering the gearbox.

High Precision Planetary Gearbox Working Principle

A high precision planetary gearbox works according to the following principles:

1. Torque Transmission: when power is input to the sun gear, the planet gears rotate around the sun gear and mesh with the ring gear. They distribute the input load and output the power to the planet carrier. The input torque is amplified and evenly distributed to the planet carrier at the output end.
2. Speed Conversion and Torque Amplification: by adjusting the gear ratio, the planetary gearbox can achieve speed conversion and torque amplification between the input and output. Generally, increasing the number of planet gears or gear ratio can result in greater torque amplification, but it may also reduce the output speed.
3. Low Backlash Design: in high precision applications, the planetary gearbox adopts preload technology to reduce or eliminate the clearance between gears, also known as "zero/low backlash" design, to ensure accurate position control and minimal mechanical play.
4. Load Distribution and Dynamic Response: a significant advantage of the planetary gear mechanism is that it can distribute the load evenly among multiple planet gears, improving the system's load-carrying capacity and stability and optimizing the dynamic response performance.

Explanation of Each Principle

1. The torque is transmitted from the input sun gear to the planet gears, which rotate around the sun gear and mesh with the ring gear. This distributes the input load and outputs the power to the planet carrier. The torque is amplified and evenly distributed to the output end.
2. By adjusting the gear ratio, the planetary gearbox can achieve speed conversion and torque amplification between the input and output. Increasing the number of planet gears or gear ratio can result in greater torque amplification, but it may also reduce the output speed.
3. In high precision applications, the planetary gearbox adopts preload technology to reduce or eliminate the clearance between gears, resulting in a "zero/low backlash" design. This ensures accurate position control and minimal mechanical play.
4. The planetary gear mechanism can distribute the load evenly among multiple planet gears, improving the system's load-carrying capacity and stability and optimizing the dynamic response performance.

High Precision Planetary Gearbox Design and Selection Considerations

When designing and selecting a high precision planetary gearbox, the following factors need to be considered:

High Precision Planetary Gearbox Applications

A high precision planetary gearbox can be applied in various industries, including:

• Servo Motor Systems: used for precise speed control and positioning in industrial automation equipment, such as robot joint drives, precision machine tool feed mechanisms, and semiconductor manufacturing equipment.
• Medical Devices: used for precise motion control and torque amplification in high-end medical equipment, such as CT scanners, MRI machines, and surgical robots.
• Aerospace: used for high-reliability and precision applications in aircraft landing gear systems, flight control actuators, and satellite attitude adjustment devices.
• Precision Instruments: used for scientific experiment equipment, precision measuring instruments, and optical tracking systems that require high transmission accuracy.
• Automotive Manufacturing: used in the power steering system of new energy vehicles, the drive unit of electric vehicles, and the transmission system of high-performance racing cars.
• Robotics: used in joint drives of industrial robots, service robots, and special operation robots.
• Logistics Automation: used in automatic storage systems, lifters, conveyor belt drives, and AGVs (automated guided vehicles).

Explanation of Each Application

1. Servo motor systems require precise speed control and positioning in industrial automation equipment, such as robot joint drives, precision machine tool feed mechanisms, and semiconductor manufacturing equipment.
2. Medical devices require precise motion control and torque amplification in high-end medical equipment, such as CT scanners, MRI machines, and surgical robots.
3. Aerospace applications require high-reliability and precision in aircraft landing gear systems, flight control actuators, and satellite attitude adjustment devices.
4. Precision instruments require high transmission accuracy in scientific experiment equipment, precision measuring instruments, and optical tracking systems.
5. Automotive manufacturing requires high-performance and reliability in the power steering system of new energy vehicles, the drive unit of electric vehicles, and the transmission system of high-performance racing cars.
6. Robotics requires high precision and flexibility in joint drives of industrial robots, service robots, and special operation robots.
7. Logistics automation requires high efficiency and reliability in automatic storage systems, lifters, conveyor belt drives, and AGVs (automated guided vehicles).

Company Introduction

We are a professional manufacturer of power transmission equipment located in Ningbo, Zhejiang. Our company specializes in the research, development, production, and sales of transmission equipment and has strict quality management systems compliant with ISO9001:2015. Our products have passed the mandatory CCC certification in China and the CE certification of the European Union. Our products are manufactured according to international IC standards and have reached the advanced level of similar products worldwide.

Our Advantages

• High-quality products with advanced technology
• Strict quality management to ensure product reliability and stability
• Efficient and flexible production and delivery
• Competitive pricing with optimal performance-to-price ratio
• Professional technical support and after-sales service

Author: Miya