Planetary roller screw, a high-end transmission element that combines modern precision mechanical design and advanced manufacturing technology. With its unique structural design and excellent performance, it has shown outstanding performance in many high-precision, large-load application fields advantages.
The working principle of the planetary roller screw is: by setting multiple rollers evenly distributed and rolling around the screw axis inside the screw nut, the rotational motion can be converted into linear motion efficiently and accurately. This unique design greatly improves the transmission efficiency and load-bearing capacity, while reducing friction loss and backlash, ensuring high precision and smoothness during the transmission process.
Characteristics of Planetary Roller Screws
High Efficiency: The transmission efficiency of planetary roller screw is high, which can reach more than 90%. This is because during the transmission process, the thread gap between the planetary roller and the internal thread screw is small, which reduces friction loss and improves transmission efficiency.
High Load-Bearing Capacity: The planetary roller screw uses multiple planetary rollers to share the load, greatly improving its load-bearing capacity. At the same time, the planetary roller screw has a compact structure and a small footprint, which is beneficial to saving space.
High Reliability: The planetary roller screw uses rolling friction, which reduces wear and improves service life. In addition, planetary roller screws have fewer parts and are easier to maintain, further improving their reliability.
Accurate Control: The linear motion of the planetary roller screw can be achieved by accurately controlling the rotation angle of the internal thread screw, thereby achieving accurate control of the motion position.
Wide Adaptability: Planetary roller screws can be used in various industrial fields, such as machine tools, robots, semiconductor equipment, etc. In addition, planetary roller screws can be customized as needed to meet the needs of different application scenarios.
For example, in the high-end CNC machine tool industry, planetary roller screws are widely used in tool post feed systems. Because of its extremely high positioning accuracy and repetitive positioning accuracy, it can meet the precision processing needs of complex workpieces, allowing the machine tool to perform micron-level precise control, thereby greatly improving product quality and production efficiency.
For another example, in the field of industrial automation equipment and robots, planetary roller screws are used as key components to drive joints or actuators, providing powerful thrust output and excellent dynamic response performance.
For example, in the joint design of a six-axis robot, planetary roller screws are used to replace traditional ball screws, which can effectively reduce the loss of accuracy due to wear while ensuring large load and high acceleration operation, and extend the use of the equipment life.
In addition, in aerospace, medical equipment, new energy vehicles and other fields, planetary roller screws are also favored for their high strength, high stiffness and good impact and seismic resistance. For example, in the research and development of the aircraft landing gear telescopic system, the use of planetary roller screw technology not only optimized the system structure and reduced the weight, but also improved the reliability and stability of the system.
In summary, as an advanced transmission technology solution, planetary roller screws are gradually leading the technological innovation and development of many high-tech industries with their high performance, high precision, and long life. With the advancement of science and technology and the continuous upgrading of market demand, the application prospects of planetary roller screws will be broader, providing strong support for promoting my country's and even the world's manufacturing industry to move towards a higher level of precision and intelligence.
Post time: Oct-11-2024
