TNE205 Series High Precision Planetary Gearbox Helical Gear Reducer

TNE205 Series High Precision Planetary Gearbox Helical Gear Reducer

Overview

TNE205 Series High Precision Planetary Gearbox Helical Gear Reducer, also known as servo motor planetary gearbox and low backlash planetary gearbox, is a type of gearbox that is used to reduce the speed of a motor and increase its torque. It consists of several gears that work together to provide precise and smooth motion control. It is widely used in various industries, including automation equipment, medical equipment, aerospace, and automotive manufacturing.

Basic Construction

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 maintained in their relative positions by the planet carrier. Each planet gear meshes with both the sun gear and the ring gear, and they collectively bear and distribute the load when power is input.

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 serve as an output component or be connected to another shaft to transmit or receive torque.

Ring Gear/Annulus

The ring gear, or internal gear, is a large-diameter ring gear fixed inside the housing with teeth on both its 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 between components. The shaft system connects these components together.

Housing and Seals

The housing is the outer framework of the entire gearbox, protecting the internal components from external environmental influences and providing installation interfaces. The seals ensure that the internal lubricant does not leak and prevent dust and moisture from entering the gearbox.

Working Principle

Torque Transmission

When power is input to the sun gear, it drives the surrounding planet gears to rotate. Since the planet gears mesh with both the sun gear and the ring gear, they rotate on their own axis while revolving around the center of the sun gear with the planet carrier. Thus, the torque input to the sun gear is amplified and evenly distributed to the planet carrier at the output end through the planet gears.

Speed Conversion and Torque Amplification

By adjusting the gear ratio of different components, speed conversion between input and output and torque amplification can be achieved. Generally, increasing the number of planet gears or increasing the gear ratio results in a more significant increase in torque, but also a decrease in output speed.

Low Backlash Design

In high-precision applications, to ensure precise position control and minimize mechanical clearance, high-precision planetary gearboxes adopt preload technology to reduce or eliminate the clearance between gears, known as "zero/low backlash" design.

Load Distribution and Dynamic Response

One significant advantage of the planetary gear mechanism is that it can uniformly distribute the load among multiple planet gears, thereby improving the bearing capacity and stability of the entire system and optimizing dynamic response performance.

Design and Selection Considerations

Consideration	Description
Load Capacity	The maximum load that the gearbox can handle should be considered based on the specific application.
Precision	The level of precision required for the application should be considered, including backlash, feed accuracy, and positioning accuracy.
Environment	The environmental conditions, such as temperature, humidity, and dust, should be taken into account.
Mounting Position	The mounting position and orientation of the gearbox should be considered, including horizontal, vertical, and angled positions.
Input Speed and Torque	The input speed and torque requirements should be considered to ensure that the gearbox can handle the power input.

Applications

Servo Motor Systems

High precision planetary gearboxes are commonly used 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

High precision planetary gearboxes are used in high-end medical equipment, such as CT scanners, MRI machines, surgical robots, to achieve precise motion control and torque amplification.

Aerospace

High precision planetary gearboxes are used in aircraft landing gear retractable systems, flight control system actuators, and satellite attitude adjustment devices that require high reliability and precision.

Precision Instruments

High precision planetary gearboxes are used in scientific experimental equipment, precision measuring instruments, optical tracking systems, and other applications that require extremely high transmission accuracy.

Automotive Manufacturing

High precision planetary gearboxes are used in power steering systems, electric drive units for new energy vehicles, and transmission systems for high-performance racing cars.

Robotics

High precision planetary gearboxes are used in the joint drive part of industrial robots, service robots, and special operation robots.

Logistics Automation

High precision planetary gearboxes are used in automatic storage systems, such as lifters, conveyor drives, and AGVs (Automatic Guided Vehicles).

About Us

We are a professional manufacturer of power transmission equipment located in Ningbo, Zhejiang. We strictly operate in accordance with the ISO9001:2015 international quality management system standard, and our products have passed the mandatory 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.Our advantages include:

• Advanced production equipment and testing equipment
• Strict quality control system and professional technical team
• Customized solutions and attentive pre-sales and after-sales service
• Wide range of product applications and competitive prices

Author: Miya