TDR090 Series High Precision Planetary Gearbox Helical Gear Reducer

Overview

TDR090 Series High Precision Planetary Gearbox Helical Gear Reducer is a type of gearbox that is widely used in various industries for precise motion control and torque amplification. It is also known as servo motor planetary gearbox and low backlash planetary gearbox. The TDR090 Series is shown below:

Basic Construction

The High Precision Planetary Gearbox consists of the following parts:

1. Sun Gear

The central gear that is usually fixed to the input shaft or the gearbox housing as the stationary component.

2. Planet Gears

The gears that revolve around the sun gear and rotate on their own axes, supported and maintained in relative positions by the planet carrier. The planet gears mesh with both the sun gear and the internal ring gear, and distribute and share the load when power is transmitted.

3. Planet Carrier

The structure with multiple planet gear shaft holes that supports and allows the planet gears to rotate relative to the sun gear. The planet carrier can serve as an output element or connect to another shaft to transmit or receive torque.

4. Ring Gear/Annulus

The large-diameter circular gear fixed inside the gearbox housing with teeth on both inner and outer surfaces that mesh with the planet gears. In some applications, the internal ring gear can also serve as an input or output end.

5. Bearings and Shaft System

The bearings support the input shaft, output shaft, and planet carrier in the high precision planetary gearbox to ensure stable rotation and smooth operation between the components.

6. Housing

The solid structure that encloses all internal components and provides stable support for the gears. It also protects the internal parts from impurities and may contain cooling or lubrication systems.

7. Shafts and Keys

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

8. Seals

The seals prevent lubricating oil leakage and contamination entering the gearbox and ensure cleanliness and good lubrication status inside the gearbox.

Working Principle

The High Precision Planetary Gearbox works based on the following principles:

1. Torque Transmission and Amplification

When power is transmitted from the input shaft to the sun gear, the sun gear begins to rotate, and the planet gears mesh with both the sun gear and the internal ring gear, causing them to revolve and rotate on their own axes. The multiple sets of planet gears work together to distribute and share the load, resulting in a significant increase in torque on the output end, thus achieving torque amplification.

2. Speed and Ratio Control

The speed relationship and gear ratio between the input and output can be precisely controlled by adjusting the tooth count ratio between the sun gear, planet gears, and internal ring gear. For example, if there are more planet gears or there is a large difference in tooth count between the sun gear and internal ring gear, the gear ratio will increase, and the output speed will decrease, while the torque will increase correspondingly.

3. Low Backlash Characteristic

The High Precision Planetary Gearbox is specifically designed to reduce or eliminate the backlash between gears, also known as "zero/low backlash." This is typically achieved through precision machining, preload techniques, and component selection to ensure high motion accuracy and smoothness under any load.

4. Dynamic Response and Stability

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

Design and Selection Considerations

The following factors should be considered when designing and selecting the High Precision Planetary Gearbox:

Applications

The High Precision Planetary Gearbox is widely used in the following fields:

1. Servo Motor Systems

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

2. Medical Equipment

Used in high-end medical equipment such as CT scanners, MRI machines, surgical robots, and other motion control and torque amplification applications.

3. Aerospace

Used in aircraft landing gear retracting systems, flight control systems, and satellite attitude adjustment devices that require high reliability and accuracy.

4. Precision Instruments

Used in scientific experimental equipment, precision measuring instruments, optical tracking systems, and other scenes that demand high transmission accuracy.

5. Automotive Manufacturing

Used in power steering systems, electric vehicle drive units, high-performance racing transmission systems, etc.

6. Robotics

Used in joint drive parts of industrial robots, service robots, and special operation robots.

7. Logistics Automation

Used in lifters, conveyor belt drives, AGVs (automated guided vehicles), and other automatic warehousing systems.

Our Company

We are a professional manufacturer of power transmission equipment located in Hangzhou, Zhejiang. We strictly operate according to the international quality management system standard ISO90012064. Our products have passed the mandatory CCC certification in China and the European Union's CE certification. Our products are produced according to international IC standards and have reached the advanced level of similar products internationally.

Our Advantages

• Advanced production equipment and testing instruments
• Professional and experienced R&D and production team
• Strict quality control and quality assurance system
• Flexible customization and OEM services
• Timely delivery and efficient after-sales service
• Competitive prices and cost-effective solutions

Author: Miya