TRE090 Series High Precision Planetary Gearbox Right Angle Reducer

TRE090 Series High Precision Planetary Gearbox Right Angle Reducer

Overview

TRE090 Series High Precision Planetary Gearbox Right Angle Reducer, also known as servo motor planetary gearbox and low backlash planetary gearbox, is a type of gearbox that consists of multiple gears, including a sun gear, planet gears, planet carrier, ring gear/annulus, bearings and shaft system, and housing and seals. It is designed to provide high precision and low backlash motion control in various applications.

Basic Construction

Sun Gear

The sun gear is located in the center of the planetary gearbox and is typically 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 held in their relative positions by the planet carrier. Each planet gear meshes with both the sun gear and the ring gear/annulus, and when power is input, they collectively bear 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 can be connected to another shaft to transmit or receive torque.

Ring Gear/Annulus

The ring gear/annulus is a large diameter circular 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/annulus can also be used as an input or output end.

Bearings and Shaft System

The bearings in the high precision planetary gearbox support the input and output shafts as well as the planet carrier, ensuring stable rotation and smooth operation between the components.

Housing and Seals

The housing is the external frame of the entire gearbox, which protects the internal components from the external environment and provides installation interfaces. Seals ensure that the internal lubricant does not leak and prevent dust and water from entering the gearbox.

Working Principle

Torque Transmission

When power is input to the sun gear, the planet gears surrounding it rotate. Since the planet gears mesh with both the sun gear and the ring gear/annulus, they rotate about their own axes and also 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 the 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.

Low Backlash Design

In high-precision applications, in order to ensure precise position control and minimal mechanical clearance, high-precision planetary gearboxes use preloading technology to reduce or eliminate gear clearance, i.e., "zero/low backlash" design.

Load Distribution and Dynamic Response

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

Design and Selection Considerations

The design and selection of high precision planetary gearbox should take into account the following factors:

Factors	Considerations
Load	The amount and type of load, including torque, speed, direction, and variability.
Accuracy	The required precision level, including backlash, positioning accuracy, and repeatability.
Noise	The acceptable noise level, including gear tooth contact noise, vibration, and resonance.
Environment	The operating environment, including temperature, humidity, corrosion, and contamination.
Installation	The installation space, mounting method, and alignment requirements.
Cost	The budget, including the initial cost, maintenance cost, and life cycle cost.

Applications

High precision planetary gearbox is widely used in various fields, including:

Servo Motor System

It is used in industrial automation equipment for precise speed control and positioning, such as robot joint drives, precision machine tool feed mechanisms, semiconductor manufacturing equipment, etc.

Medical Equipment

It is used in high-end medical equipment such as CT scanners, MRI machines, surgical robots, etc., for precise motion control and torque amplification.

Aerospace

It is used in aircraft landing gear retraction systems, flight control system actuators, satellite attitude adjustment devices, and other applications that require high reliability and precision.

Precision Instruments

It is used in scientific experimental equipment, precision measuring instruments, optical tracking systems, and other scenarios that have extremely high requirements for transmission accuracy.

Automotive Industry

It is used in power steering systems of new energy vehicles, drive units of electric cars, transmission systems of high-performance racing cars, and other applications.

Robotics

It is used in joint drive parts of industrial robots, service robots, and special operation robots.

Logistics Automation

It is used in automatic storage systems such as lifters, conveyor drives, AGVs, etc.

About Us

We are a professional manufacturer of transmission equipment located in Ningbo, Zhejiang. We specialize in the research, production, and sales of transmission equipment, and strictly operate according to the international quality management system standard ISO90012015. Our products have passed the mandatory CCC certification in China and the CE certification of the European Community. Our products are produced according to international standards and have reached the advanced level of similar products in the world.

Our Advantages

- Advanced production equipment and testing instruments.- Experienced technical team and management team.- Strict quality control system and after-sales service system.- Rich production experience and customized solutions.- Competitive prices and timely delivery.Author: Miya.