TDR200 Series High Precision Planetary Gearbox Helical Gear Reducer Overview

TDR200 Series High Precision Planetary Gearbox Helical Gear Reducer is a type of gearbox used in various industrial applications, particularly for servo motors. It is also known as Servo Motor Planetary Gearbox and Low Backlash Planetary Gearbox. The gearbox provides high precision and accuracy in power transmission, making it ideal for use in high-end applications that require precise control and positioning. The gearbox has a compact size and high torque density, which allows it to deliver high torque output in a small space.

High Precision Planetary Gearbox Basic Structure

The High Precision Planetary Gearbox consists of several components:

• Sun Gear: located at the center of the planetary gearbox, it is usually connected to the input shaft or fixed to the gearbox housing as a stationary component.
• Planet Gears: rotate around the sun gear and are supported and held in position by a carrier. Each planet gear meshes with both the sun gear and the internal ring gear, and when power is input, they share and distribute the load.
• Planet Carrier: a structure with multiple planet gear shaft holes, it carries the planet gears and allows them to rotate relative to the sun gear. The planet carrier can act as an output component or be connected to another shaft to transmit or receive torque.
• Ring Gear/Annulus: a large-diameter ring gear fixed inside the gearbox housing, it has teeth on both its inner and outer surfaces and meshes with the planet gears. In some applications, it 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, ensuring stable rotation and smooth operation between components.
• Housing: a sturdy structure that encloses all internal components, it provides a stable support environment for the gears, protects the internal components from external impurities, and may contain cooling or lubrication systems.
• Shafts and Keys: the input and output shafts are connected to the sun gear or planet carrier through keys to transmit power and ensure precise torque transmission and axial positioning.
• Seals: seals prevent lubricating oil leakage and contaminants from entering the gearbox, ensuring internal cleanliness and good lubrication.

High Precision Planetary Gearbox Working Principle

The working principle of the High Precision Planetary Gearbox is as follows:

1. Torque Transmission and Amplification: when power is transmitted from the input shaft to the sun gear, the sun gear starts to rotate. Since the planet gears mesh with both the sun gear and the internal ring gear, they start to revolve and rotate. Due to the combined action of multiple sets of planet gears, the load of the entire system is evenly distributed, thereby significantly increasing the torque output and achieving torque amplification.
2. Control of Speed and Transmission Ratio: by adjusting the number of teeth on the sun gear, planet gear, and internal ring gear, 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 is greater, the transmission ratio increases, and the output speed decreases, while the torque correspondingly increases.
3. Low Backlash: the High Precision Planetary Gearbox is designed to minimize or eliminate the gap between gears, known as "zero/low backlash." This is usually achieved through precision machining, preload technology, and component selection to ensure high motion accuracy and smoothness under any load.
4. 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 Factors for High Precision Planetary Gearbox

The design and selection of High Precision Planetary Gearbox consider various factors, including:

Applications of High Precision Planetary Gearbox

The High Precision Planetary Gearbox is widely used in various industries and applications, including:

• Servo motor systems 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 devices, such as CT scanners, MRI machines, and surgical robots, requiring precise motion control and torque amplification.
• Aerospace applications, such as landing gear actuation systems, flight control system actuators, and satellite attitude adjustment devices, requiring high reliability and precision.
• Precision instruments, such as scientific experimental equipment, precision measuring instruments, and optical tracking systems, requiring high transmission accuracy.
• Automotive manufacturing, such as power steering systems for new energy vehicles, electric vehicle drive units, and transmission systems for high-performance racing cars.
• Robotics technology, including joint drive components for industrial robots, service robots, and special operation robots.
• Logistics automation, such as lifters in automated storage systems, conveyor drivers, and AGVs.

Introduction to Our Company

We are a professional manufacturer of power transmission equipment located in Hangzhou, Zhejiang. We specialize in research, production, and sales of transmission equipment, strictly following the international quality management system standard ISO90012067. Our products have passed the mandatory CCC certification in China and CE certification in the European Union. Our products are produced according to international IC standards and have reached the advanced level of similar international products.

Our Advantages

• Advanced technology and equipment
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• Excellent after-sales service
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Author: Miya