TDR110 Series High Precision Planetary Gearbox Helical Gear Reducer

TDR110 Series High Precision Planetary Gearbox Helical Gear Reducer Overview

The TDR110 Series High Precision Planetary Gearbox Helical Gear Reducer is a type of gearbox used in industrial automation equipment to achieve accurate motion control and torque amplification. It is also known as servo motor planetary gearbox and low backlash planetary gearbox. The product image is shown below:

Basic Structure of High Precision Planetary Gearbox

The basic structure of high precision planetary gearbox is composed of several key components:

1. Sun Gear: The sun gear is located in the center of the planetary gearbox and is usually connected to the input shaft or fixed on the housing as a stationary part.
2. Planet Gears: The planet gears rotate around the sun gear and are supported and kept in their relative positions by the planet carrier. Each planet gear meshes with the sun gear and the internal gear ring. When power is input, they jointly bear and distribute the load.
3. Planet Carrier: The planet carrier is a structure with multiple planet gear shaft holes, which carries the planet gears and allows them to rotate relative to the sun gear. The planet carrier can be used as an output element or connected to another shaft to transmit or receive torque.
4. Ring Gear/Annulus: The internal gear ring is a large-diameter ring gear fixed inside the gearbox housing, and both its inner and outer surfaces have teeth that mesh with the planet gears. In some applications, the internal gear ring can also be used as an input or output end.
5. 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 the components.
6. Housing and Seals: The housing is the external frame of the entire gearbox, which protects the internal components from external environmental influences and provides installation interfaces. Seals ensure that the internal grease does not leak out and prevent dust and water from entering the gearbox.

The following image shows the design of a high precision planetary gearbox:

Explanation of Basic Structure of High Precision Planetary Gearbox

1. The sun gear is the center gear of the planetary gearbox and is usually connected to the input shaft. It transmits the input power to the planet gears.
2. The planet gears rotate around the sun gear and are supported by the planet carrier. They mesh with both the sun gear and the internal gear ring and bear and distribute the load together.
3. The planet carrier carries the planet gears and allows them to rotate relative to the sun gear. It can be used as an output element or connected to another shaft to transmit or receive torque.
4. The internal gear ring is a large-diameter ring gear fixed inside the gearbox housing. It meshes with the planet gears and is used as an output or input end.
5. The bearings in the gearbox are used to support the input and output shafts and the planet carrier, ensuring stable rotation and smooth operation.
6. The housing is the external frame of the gearbox, which protects the internal components from external environmental influences. Seals ensure that the internal grease does not leak out and prevent dust and water from entering the gearbox.

Working Principle of High Precision Planetary Gearbox

The working principle of high precision planetary gearbox is as follows:

1. Torque Transfer: When power is input to the sun gear, it drives the planet gears to rotate. Since the planet gears mesh with both the sun gear and the internal gear ring, they rotate around their own axis and revolve around the center of the sun gear with the planet carrier. In this way, the torque input to the sun gear is amplified by the planet gears and evenly distributed to the planet carrier at the output end.
2. Speed Conversion and Torque Amplification: By adjusting the gear ratio of different components, speed conversion and torque amplification between input and output can be achieved. Generally, when the number of planet gears increases or the gear ratio increases, the effect of torque amplification is more significant, but the output speed will decrease at the same time.
3. Low Backlash Design: In high precision applications, to ensure precise position control and minimal mechanical clearance, high precision planetary gearboxes adopt preload technology to reduce or eliminate the gear clearance, namely, "zero/low backlash" design.
4. Load Distribution and Dynamic Response: An important advantage of the planetary gear mechanism is that it can evenly distribute the load among multiple planet gears, improving the bearing capacity and stability of the entire system and optimizing the dynamic response performance.

The following image shows the working principle of a high precision planetary gearbox:

Explanation of Working Principle of High Precision Planetary Gearbox

1. Torque is transferred from the input to the output end by the sun gear, planet gears, and planet carrier.
2. Speed conversion and torque amplification are achieved by adjusting the gear ratio of different components.
3. Low backlash design is used to reduce or eliminate the gear clearance, ensuring precise position control and minimal mechanical clearance.
4. Load is evenly distributed among multiple planet gears, improving the bearing capacity and stability of the entire system and optimizing the dynamic response performance.

Design and Selection Considerations of High Precision Planetary Gearbox

The design and selection considerations of high precision planetary gearbox are shown in the following table:

Applications of High Precision Planetary Gearbox

The applications of high precision planetary gearbox are as follows:

1. Servo Motor Systems: Used in industrial automation equipment for precise speed control and position positioning, such as robot joint drive, precision machine tool feed mechanism, semiconductor manufacturing equipment, etc.
2. Medical Devices: Used in high-end medical equipment such as CT scanners, MRI machines, surgical robots, etc. for accurate motion control and torque amplification.
3. Aerospace: Used in aircraft landing gear retracting and extending systems, flight control system actuators, satellite attitude adjustment devices, etc. that require high reliability and precision.
4. Precise Instruments: Used in scientific experimental equipment, precision measuring instruments, optical tracking systems, etc. that require high transmission accuracy.
5. Automotive Manufacturing: Used in power steering systems of new energy vehicles, drive units of electric vehicles, transmission systems of high-performance racing cars, etc.
6. Robotic Technology: Used in joint drive parts of industrial robots, service robots, and special operation robots.
7. Logistics Automation: Used in lifting platforms, conveyor belt drives, AGVs (automatic guided vehicles), etc. in automated warehousing systems.

Explanation of Applications of High Precision Planetary Gearbox

1. Servo motor systems require high precision and repeatability, and high precision planetary gearbox can provide accurate motion control and torque amplification.
2. Medical equipment requires high precision and reliability, and high precision planetary gearbox can ensure accurate motion control and torque amplification.
3. Aerospace systems require high reliability and precision, and high precision planetary gearbox can meet the requirements of precise motion control and torque amplification.
4. Precise instruments require high transmission accuracy, and high precision planetary gearbox can provide accurate motion control.
5. New energy vehicles, electric vehicles, and high-performance racing cars require high transmission efficiency and torque amplification, and high precision planetary gearbox can provide efficient and stable transmission.
6. Industrial robots, service robots, and special operation robots require precise motion control and torque amplification, and high precision planetary gearbox can meet the requirements of precise motion control.
7. Automated warehousing systems require precise and efficient motion control and torque amplification, and high precision planetary gearbox can provide stable and reliable transmission.

About Us

We are a professional manufacturer of power transmission equipment, located in Ningbo, Zhejiang. We operate strictly in accordance with the international quality management system standard ISO9001:2015, and our products have passed the China Compulsory Certification (CCC) and the European Union CE certification. Our products are produced according to international standards and reach the advanced level of similar products in the world.

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• We have advanced production equipment and testing instruments.
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Author: Miya