TRHE042 Series High Precision Planetary Gearbox Right Angle Reducer, also known as Servo Motor Planetary Gearbox and Low Backlash Planetary Gearbox, is a highly precise gearbox that is widely used in various industrial automation equipment, medical devices, aerospace and aviation, precision instruments, robotics, and automotive manufacturing, among other applications. It is designed to offer minimal backlash and high torsional stiffness, making it ideal for applications that require high precision and high torque transmission.
The High Precision Planetary Gearbox consists of the following components:
The sun gear is located at the center of the planetary gearbox and is typically connected to the input shaft or fixed on the housing as a stationary component.
The planet gears rotate around the sun gear and are supported and maintained in their relative positions by the planetary carrier. Each planet gear meshes with both the sun gear and the internal gear, and collectively they bear and distribute the load when power is inputted.
The planetary carrier is a structure with multiple planet gear shaft holes that carries the planet gears and allows them to rotate relative to the sun gear. The planet carrier can serve as an output component or be connected with another shaft to transmit or receive torque.
The internal gear is a large diameter ring gear fixed inside the housing that has teeth on both its inner and outer surfaces, which mesh with the planet gears. In some applications, the internal gear can also serve as an input or output end.
The bearings in the high precision planetary gearbox support the input shaft, output shaft, and planetary carrier, ensuring stable rotation and smooth operation among the components.
The housing is the external frame of the gearbox that protects the internal components from external environmental factors and provides installation interfaces. The seals ensure that the internal lubricant doesn't leak and prevent dust and water from entering the gearbox.
The working principle of the High Precision Planetary Gearbox is based on torque transmission, speed conversion and torque amplification, low backlash design, and load distribution and dynamic response, as explained below:
When power is inputted to the sun gear, it drives the planet gears in rotation. Since the planet gears mesh with both the sun gear and internal gear, they rotate on their own axes and revolve around the center of the sun gear with the planetary carrier. This way, the torque inputted to the sun gear is amplified and evenly distributed to the planetary carrier at the output end through the planet gears.
By adjusting the gear ratio of different components, speed conversion and torque amplification between input and output can be realized. Generally, when there are more planet gears or the gear ratio is increased, the amplification of torque is more significant, but at the same time, the output speed will decrease.
In high precision applications, to ensure accurate position control and minimal mechanical clearance, the high precision planetary gearbox adopts preload technology to reduce or eliminate gear clearance, i.e., ""zero/low backlash"" design.
One significant advantage of the planetary gear mechanism is that it can evenly distribute the load among multiple planet gears, thereby improving the load-carrying capacity and stability of the entire system and optimizing its dynamic response performance.
The design and selection of the High Precision Planetary Gearbox involve various factors, including:
| Factors | Description |
|---|---|
| Speed and Torque | The required input and output speed and torque of the gearbox. |
| Backlash | The maximum allowable clearance between meshing gears. |
| Noise | The desired noise level of the gearbox. |
| Efficiency | The power loss during the transmission. |
| Life Expectancy | The expected lifespan of the gearbox under the given operating conditions. |
| Environment | The operating environment of the gearbox, including temperature, humidity, and vibration levels. |
| Cost | The total cost of the gearbox, including its purchase, installation, and maintenance. |
The High Precision Planetary Gearbox is widely used in various industrial applications, including:
We are a professional manufacturer of power transmission equipment located in Ningbo, Zhejiang. Our products have been certified by the mandatory CCC certification in China and the CE certification in the European community. We operate strictly according to the international quality management system standard ISO90012015, and our products are produced according to international IC standards, reaching the advanced level of similar products internationally.
Address
Luotuo Industrial Area, Zhenhai District, Ningbo City, China
Tel
Raydafon