With the increasing automation of modern industry, AC servo systems have become the mainstream of industrial control and occupy a significant position in contemporary industrial equipment production. Due to the rapid development of the social economy, in addition to meeting the speed and positioning control needs of user equipment, the addition of planetary gear reducers has made many manufacturers more efficient, greatly alleviating production challenges in certain special situations, such as high torque and low speed, while also increasing equipment operational stability. Based on current industrial development trends, the demand for planetary gear reducers will continue to increase, replacing traditional gear transmission mechanisms and compensating for the shortcomings in modern industrial production efficiency.
The main advantages of modern AC servo motor control systems are: fast response speed, high control precision, strong overload resistance, no noise, no vibration, adjustable control parameters, and the ability to perform speed, position, and torque control functions according to user requirements, as well as high precision and high reliability.
This chapter mainly provides a detailed introduction to the German BERGERLAHR servo motor system. BERGERLAHR servo motors are divided into two types according to performance: SER type and DSM type. Both can be matched with the TLD13X dedicated servo driver, and the power range can reach 0.3 ~10KW.
The SER type AC synchronous servo motor utilizes the latest high-energy-product permanent magnet materials and optimized motor design, enabling a small motor to generate significant torque. The maximum output torque of the same model motor varies depending on the driver it is matched with, and different motor winding structures correspond to different speeds and power outputs. The Biogla servo motor boasts extremely high overload resistance, typically five times its rated torque. Its feedback system is equipped with a high-precision sine/cosine absolute encoder with a resolution of 16384 lines/revolution. The motor also features an internal NTC temperature monitor, an IP56 protection rating, and an operating temperature range of -25°C to 50°C.
The Biogla servo drive TLD13X offers two voltage input options: single-phase 220VAC and three-phase 380VAC. It includes a built-in power filter, eliminating the need for an additional isolation transformer, and can receive both analog and digital signals. Based on power rating, it is available in four models: TLD132, TLD134, TLD136, and TLD138. Different functional modules can be selected to meet various user needs, offering flexible and convenient operation suitable for various industrial automation applications. Biogla has also developed the TLC6 programmable drive system (controller with integrated driver) to meet user requirements. This system is extremely powerful, enabling bus control and multi-unit operation. It supports various bus data communication structures such as IBS, PROFIBUS, CAN, CANOPEN, and RS485, features 40 I/O interfaces, and is equipped with a high-speed input port. It allows for high-level language programming and includes numerous library functions for point-to-point control, electronic cams, event triggering, and more.
Baigra's TLCC controller offers optional industrial Ethernet, a display unit, the ability to control up to 127 TLC series intelligent controllers simultaneously, high-level language programming, 2MB of user memory, and 48 I/O interfaces, making it a highly promising new product for the future market.
In addition to possessing all the advantages of SER motors, the DSM servo motor boasts high protection and vibration levels, making it suitable for various complex environments. It offers superior performance, enhanced stability, moisture resistance, S-class vibration resistance, and R-class flange precision. Planetary reducers and brakes can be optionally added upon request.
Functions and uses of planetary gear reducers:
This section mainly introduces and recommends high-precision planetary gearboxes from the German company NEUGART.
Since 1966, the German company NEUART has been dedicated to the research and development and production of high-precision planetary gearboxes for servo motors. Over the decades, more than 80 experts have continuously improved and perfected the technology, from structural design and material selection to processing, assembly, and quality inspection, resulting in numerous patents. This has enabled NEUART's planetary gearboxes to achieve industry-leading performance in key technical indicators such as output torque, noise, efficiency, radial and axial force, lifespan, and backlash. This is particularly evident in their compatibility with servo motors, where their experience and technology are highly mature, resulting in an exceptionally superior performance-price ratio.
The main processes, structures, and patented technologies of NEUGART planetary gearboxes include:
Homing gears: The gear surfaces are honing with ultra-precision, which optimizes the fit between gears, reduces frictional resistance and vibration, and achieves a transmission efficiency of up to 98%. The noise level is below 55 dB at high speeds, the maximum input speed is 10,000 rpm, and the minimum backlash is less than 1 arc minute.
Transition flange technology: In order to meet the requirements of different users, NEUGART has specially developed a professional transition connection flange. This patented technology allows the reducer to be matched with motors from any manufacturer, and the assembly time is only one minute.
Gear surface hardening treatment: its lifespan far exceeds that of the matching motor. High-quality bearings are selected, and the reducer housing is treated with a special process, which increases the stress and vibration resistance of the input shaft and output bearing, and extends its service life.
Patented heat dissipation technology: When a highly sealed reducer rotates at high speed, the internal air cannot be discharged after being heated, which increases the internal pressure and temperature rise, limiting long-term high-speed operation. After the NEUGART planetary reducer adopts patented heat dissipation technology, the torque does not decrease after long-term high-speed operation, the temperature rise and pressure increase are very small, and the service life is greatly extended.
NEUGART planetary gearboxes are classified into the PLE series and PLS series according to their precision and application. The PLE type gearbox is suitable for a wide range of industrial applications, while the PLS type gearbox is suitable for high-precision applications such as military applications. NEUGART gearboxes are also available in single-stage, two-stage, and three-stage planetary gearboxes based on the number of planetary gear sets, with reduction ratios ranging from 3 to 512. They can operate continuously between -25 degrees Celsius and 100 degrees Celsius, and can reach 120 degrees Celsius for short periods. The PLE series gearboxes have an IP54 protection rating, while the PLS series gearboxes have an IP65 protection rating.
Applications of AC servo motors and planetary gearboxes in the industrial control industry;
The servo motors that can be matched with NEUGART planetary gearboxes include many world-renowned brands such as Baigella, Siemens, Lenze, Rexroth, Fagor, Panasonic, Mitsubishi, Sanyo, Yaskawa, and Kollmorgen. In China, the integration of servo motors and gearboxes is used in various industrial automation applications such as cutting machines, inkjet printers, welding machines, machine tools, printing, packaging, plastics machinery, and automobiles. The number of applications is increasing year by year. Its superior performance-price ratio will continue to expand the application field, which is of great significance to improving the level of industrial automation in my country.
Conclusion:
The integration of servo motors and planetary gear reducers, as an advanced control matching solution, has excellent development prospects in the field of CNC and can provide professional and in-depth services. The emergence of planetary gear reducers will become a major highlight of China's machinery manufacturing industry and has set a good precedent for rapidly promoting domestic economic development.
With the mission of "introducing advanced German electromechanical technology to promote the development of Chinese enterprises," Rhein has introduced NEUGART planetary gearboxes and BAIGRA servo motors to China, and sales have already reached a significant scale. As China's economy develops, more and more planetary gearboxes are being applied to various industrial fields. Rhein will also build a technological bridge for users, continuously sharing mature foreign technologies with industry professionals!
