TRE042 Series High Precision Planetary Gearbox Right Angle Reducer

Overview

TRE042 Series High Precision Planetary Gearbox Right Angle Reducer, also known as servo motor planetary gearbox and low backlash planetary gearbox, is a high precision gearbox commonly used in industrial automation equipment. It is designed to provide high precision positioning with low backlash and high torsional stiffness.

Basic Structure

Sun Gear

Located at the center of the planetary gearbox, the sun gear is usually connected to the input shaft or fixed on the housing as a stationary component.

Planet Gears

The planet gears revolve around the sun gear and mesh with the internal ring gear/annulus. They are supported and maintained in relative position by the planet carrier.

Planet Carrier

The carrier is a structure with multiple planet gear shaft holes. It supports the planet gears and allows them to rotate relative to the sun gear. The carrier can be used as an output element or connected to another shaft to transmit or receive torque.

Ring Gear/Annulus

The internal ring gear/annulus is a large-diameter ring-shaped gear fixed inside the housing, meshing with the planet gears. In some applications, the ring gear/annulus can also serve as an input or output.

Bearings and Shaft System

The bearings in the high precision planetary gearbox support the input shaft, output shaft, and planet carrier, ensuring stable rotation and smooth operation between different parts.

Housing

The housing is a sturdy structure that encloses all the internal components of the gearbox, providing stable support for the gears. It also protects the internal components from external impurities and may contain a cooling or lubrication system.

Shafts and Keys

The input and output shafts are connected to the sun gear or planet carrier through the key to transmit power and ensure precise torque transmission and axial positioning.

Seals

Seals are used to prevent lubricating oil leakage and contamination from entering the gearbox, ensuring internal cleanliness and good lubrication.

Working Principle

Torque Transmission and Amplification

When power is transmitted from the input shaft to the sun gear, the sun gear begins to rotate. The planet gears mesh with the sun gear and the internal ring gear/annulus, and they start to revolve and rotate. Due to the combined action of multiple planet gears, the load of the entire system is evenly distributed, which significantly increases the output torque and achieves torque amplification.

Speed and Transmission Ratio Control

By adjusting the gear ratio of the sun gear, planet gears, and internal ring gear/annulus, the speed relationship and transmission ratio between the input and output can be precisely controlled. For example, if there are more planet gears or the difference in the number of teeth between the sun gear and internal ring gear/annulus is larger, the transmission ratio increases, the output speed decreases, and the torque increases accordingly.

Low Backlash Characteristics

High precision planetary gearbox pays special attention to reducing or eliminating the clearance between gears, known as "zero/low backlash." This is usually achieved through precision processing, preloading technology, and component selection, ensuring extremely high motion accuracy and smoothness under any load.

Dynamic Response and Stability

Due to the even distribution of the load and multiple contact points, the planetary gearbox can provide good dynamic performance, including fast response, stable operation, and durability under heavy loads.

Design and Selection Considerations

Applications

Servo Motor Systems

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

Medical Equipment

High precision planetary gearbox is widely used in high-end medical devices, such as CT scanners, MRI machines, and surgical robots to achieve precise motion control and torque amplification.

Aerospace

High precision planetary gearbox is used in aircraft landing gear systems, flight control systems, and satellite attitude adjusters, where high reliability and precision are required.

Precision Instruments

High precision planetary gearbox is used in scientific experimental equipment, precision measuring instruments, and optical tracking systems that demand extreme transmission accuracy.

Automotive Manufacturing

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

Robotics

High precision planetary gearbox is used in joint drive parts of industrial robots, service robots, and special operation robots.

Logistics Automation

High precision planetary gearbox is used in automated warehousing systems, such as lifters, conveyor drives, and AGVs (automated guided vehicles).

About Us

We are a professional manufacturer of power transmission equipment located in Hangzhou, Zhejiang. We strictly follow the international quality management system standard ISO90012084 and our products have passed the Chinese mandatory CCC certification and the European Union CE certification. Our products are produced according to international IC standards and have reached the advanced level of similar products internationally.

Our Advantages

- Advanced technology and equipment
- Strict quality control system
- Experienced R&D team
- Professional sales and after-sales service
- Competitive price
- Timely delivery

Author: Miya