1. Definition of right-angle planetary gearboxes
A
right-angle planetary gearbox is a special planetary reduction gearbox with the structural feature that multiple planetary gears rotate around a sun gear, and the axes of these planetary gears form a right angle with the axis of the sun gear. This design enables the gearbox to transmit power at a 90-degree angle, which is suitable for occasions where right-angle transmission is required.
2. The basic principle of right-angle planetary gearboxes
The working principle of right-angle planetary gearboxes is based on the basic principle of planetary gears. Planetary gears can not only rotate around their own rotation axis (autorotation), but also rotate around the axis of other gears with the planet carrier (revolution). When the input shaft rotates, the sun gear drives the planetary gears to rotate around its axis, and at the same time, the axis of the planetary gears is at right angles to the axis of the sun gear, thereby realizing right-angle transmission. This design is widely used in robots, automation equipment and other fields, and can meet specific motion requirements.
3. Structural advantages of right-angle planetary gearboxes
1. Compact design: The right-angle planetary gearbox adopts a modular design, which is small in size, light in weight, and easy to install and maintain. Its compact right-angle layout allows the input shaft to be arranged vertically with the output shaft, which can achieve effective power transmission in a limited space and save installation space.
2. Efficient transmission: The planetary gear system has the characteristics of multi-tooth meshing, which can achieve smooth and efficient transmission and reduce energy loss. In addition, the transmission efficiency of the planetary gear reducer is high due to multi-gear split transmission, internal meshing, compact structure, smooth movement and the use of high-strength materials.
3. High load-bearing capacity: The planetary gear system can evenly distribute the load, improve the load-bearing capacity of the reducer and extend the service life. The structure of the planetary gear reducer is compact, and the reasonable layout of the planetary gear, sun gear and internal gear ring reduces the distance and loss of power transmission.
4. Multiple installation options: The right-angle planetary gearbox combines the advantages of compact right-angle gearboxes and traditional planetary gearboxes, and provides a variety of installation options for different application scenarios.
4. Its output shaft can choose an output shaft with a key to improve safety, or a smooth output shaft for press-fit transmission.
5. High precision and low backlash: Some models of right-angle planetary gearboxes provide high positioning accuracy, especially in reverse mode, suitable for applications that require high-precision transmission.
4. Common applications of right-angle planetary gearboxes
1. Industrial automation equipment: In industrial automation production lines, right-angle planetary reducers are widely used in various actuators, such as handling robot arms, CNC machine tool feed devices, etc. It can provide smooth speed changes and strong torque output to ensure processing accuracy and surface quality.
2. Medical equipment: With the development of medical technology, right-angle planetary reducers are widely used in precision medical equipment, such as X-ray machines, CT scanners and other equipment in moving parts. Its low noise and high precision characteristics ensure that the equipment remains quiet and stable during operation, providing patients with a comfortable examination environment.
3. Industrial robots: At the joints of the robot, the right-angle planetary reducer can provide high-precision, high-torque transmission to ensure the accuracy and stability of the robot's movements.
4. Automated production lines: In automated equipment such as conveyor lines and assembly lines, right-angle planetary reducers can achieve efficient and stable power transmission and improve production efficiency.
5. Precision instruments and equipment: In precision instruments and medical equipment, right-angle planetary reducers can provide high-precision, low-noise transmission to meet the precision requirements of the equipment.
6. Aerospace: In the field of aerospace, right-angle planetary reducers can withstand high loads and high-precision requirements to ensure the reliable operation of the equipment.
7. Other fields: In addition, right-angle planetary reducers are also used in high-precision occasions such as metallurgical equipment, wind power generation equipment, chemical equipment, solar equipment, and packaging equipment.
Source:
https://charlene09.hatenablog.com/entry/2025/05/26/182644