TNE090 Series High Precision Planetary Gearbox Helical Gear Reducer

Overview

TNE090 Series High Precision Planetary Gearbox Helical Gear Reducer is a type of gearbox that is commonly used in industrial automation equipment for precise speed control and positioning, such as robotic joint drives, precision machine tool feed mechanisms, and semiconductor manufacturing equipment. It is also known as servo motor planetary gearbox and low backlash planetary gearbox. The gearbox is designed to achieve high precision and accuracy, making it an ideal choice for applications that require precise and reliable motion control.

Basic Construction of High Precision Planetary Gearbox

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 component.

Planet Gears

The planet gears rotate around the sun gear and are supported and kept in their relative positions 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. It supports the planet gears and allows them to rotate around the sun gear. The planet carrier can serve as an output element or be connected to another shaft to transmit or receive torque.

Ring Gear/Annulus

The ring gear is a large-diameter ring-shaped gear fixed inside the housing. Its inner and outer surfaces have teeth 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 support the input shaft, output shaft, and planet carrier to ensure stable rotation and smooth operation between components.

Housing and Seals

The housing is the external frame of the entire gearbox, which protects the internal components from external environmental influences and provides installation interfaces. Seals ensure that the internal lubricating grease does not leak and prevent dust and moisture from entering the gearbox.

Working Principle of High Precision Planetary Gearbox

Torque Transfer

When power is input to the sun gear, the planet gears rotate around the sun gear. Because the planet gears mesh with both the sun gear and the ring gear, they undergo rotation on their own axis and revolve 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.

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 becomes larger, the effect of torque amplification becomes more significant, but the output speed will decrease at the same time.

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 gear clearances, that is, "zero/low backlash" design.

Load Distribution and Dynamic Response

An important advantage of the planetary gear mechanism is that it can evenly distribute the load among multiple planet gears, thereby increasing the load-bearing capacity and stability of the entire system, and optimizing dynamic response performance.

Design and Selection Considerations of High Precision Planetary Gearbox

The design and selection of high precision planetary gearbox should take into account various factors, such as load characteristics, speed requirements, installation space, service life, and cost. The table below lists some of the key factors that need to be considered.

Factor	Explanation
Load Characteristics	Load capacity, torque, and direction
Speed Requirements	Input and output speed ratio, maximum and minimum speed
Installation Space	Dimensions, weight, and mounting options
Service Life	Reliability, maintenance, and repair frequency
Cost	Price, ROI, and other economic factors

Applications of High Precision Planetary Gearbox

Servo Motor Systems

High precision planetary gearbox is used in conjunction with servo motors for precise speed control and positioning in industrial automation equipment, such as robotic joint drives, precision machine tool feed mechanisms, and semiconductor manufacturing equipment.

Medical Equipment

The gearbox is used in high-end medical equipment such as CT scanners, MRI machines, and surgical robots to achieve precise motion control and torque amplification.

Aerospace

The gearbox is used in aircraft landing gear retracting systems, flight control system actuators, and satellite attitude adjustment devices that require high reliability and accuracy.

Precision Instruments

The gearbox is used in scientific experimental equipment, precision measuring instruments, optical tracking systems, and other applications that require high transmission accuracy.

Automotive Manufacturing

The gearbox is 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 Technology

The gearbox is used in the joint drive part of industrial robots, service robots, and special operation robots.

Logistics Automation

The gearbox is used in automated storage systems, lifting platforms, conveyor belt drives, and AGVs (automatic guided vehicles) in logistics automation.

About Our Company

We are a professional manufacturer of power transmission equipment, located in Hangzhou, Zhejiang. We strictly operate in accordance with the international quality management system standard ISO90012015. Our products have passed the mandatory CCC certification in China and the CE certification of the European Union. Our products are produced according to international IC standards and have reached the advanced level of similar products internationally.

Our Advantages

- High-quality products with advanced manufacturing technology
- Strict quality control and testing procedures to ensure product reliability
- Professional technical team and excellent after-sales service
- Competitive prices and cost-effective products
- Comprehensive product range and customized solutions

Author: Miya