As the application of planetary reducers becomes wider and wider, people are increasingly demanding them, not only in terms of volume, work efficiency, accuracy, average working life, lateral and axial force of the output shaft, but also high requirements. Moreover, there are high requirements for the input speed, the impact force of acceleration and deceleration, and the working work intensity (at least 18 to 24 hours per day).
In the spraying robots of Germany's Durr and Wollin, the planetary reducer not only has a good sealing, but also works reliably for a long time. In other military equipment, the volume, efficiency, accuracy of the planetary reducer, lateral and axial force and average working life of the output shaft are higher, and it must be able to work in the range of 100~-40 °C for a long time. It can work stably in the range of 120~-50 °C.
Usually the standard planetary reducer can not meet the requirements of many manufacturers' special machines, and Newcaster has always been the first priority to continuously meet the needs of many manufacturers for special reducers. Newcaster knows the various needs of everyone, including the large size of the specific size, the size of the reducer is small or meets the special space structure requirements, and the noise of some reducers is very low (such as medical equipment). Above), some require long-term high-speed operation but low temperature rise and low noise. Some reducers have a reduction ratio of 1, but have a 90o angle output, and the volume is small, and the high-speed temperature rise is small; in Europe, the latest fighters and racing cars use speed reducers to operate at high speed for a long time, with high reliability and small temperature rise; The truck must work reliably at a low temperature of -40 ° C, and it must be resistant to wind and rain. The requirements are very different. New Carter's special reducer division works closely with users to innovate and produce many patented technologies for special reducers and planetary reducers. This paper introduces two of the most important and commonly used patented technologies.
1. Planetary Reducer Patented Technology-PCS
In order to make the planetary reducer quickly and accurately assembled with the equipped drive motor and to work stably and reliably for a long time, all NEUGART series planetary reducers are equipped with its own patented PCS system - precision clamping system . The design details of this patent are: at the input end of the gear there is a hollow clamping collar with several evenly distributed grooves. The grooves in the PCS system are not all exposed, but a closed ring is placed at the end of the hollow mechanical shaft of the gear. The closed end promotes uniform deformation of the force during the clamping process, ensuring uniform clamping force and more scientific. Yes, the shape of the groove is configured so that the clamping collar can be safely placed anywhere on the output shaft without affecting the input and output torque. When the planetary reducer is equipped with the PCS system, the motor output shaft and the input end of the reducer are better matched, and the assembly can be completed in 1 min, and the accuracy and safety of the motor output shaft clamping are greatly improved, simplifying The installation also reduces noise and ensures that the reducer can work stably for a long time.

2. Planetary Reducer Patented Technology - NICK
The main function of the planetary reducer is to increase the output torque and reduce the output speed. This is the two main technical indicators for planetary gear reducers on many machines, machines and locomotives. The planetary reducer can meet the requirements of large reduction of the output of the reducer, high rotation efficiency, long working life and large safety factor. NEUGART's planetary reducers are IP65 rated to protect against all dust and rain. The IP65 degree of protection completely encloses the internal cavity of the planetary reducer and the outside. The temperature and pressure changes generated by the internal cavity of the reducer generated by the planetary reducer at high speed directly affect its output, long-term rotation speed and life. In order to ensure that the input and output shafts of the IP65 protection class planetary reducer use sealed bearings and seal rings, the sealed bearings and seal rings also affect the temperature and pressure changes in the internal cavity of the reducer.

(1) Temperature and pressure limit the input speed The planetary gear reducer of Germany NEUGART Company has a maximum rotation efficiency of 98%, and 2% of the input energy becomes heat and is lost. This loss is mainly due to the friction of the seal coil and the bearing, which raises the temperature of the internal cavity of the reducer. Sometimes an externally high ambient temperature also increases the temperature of the internal cavity of the reducer. The temperature of the internal cavity of the reducer directly limits the output torque and output speed.
(2) How to reduce the internal pressure of the reducer There are many ways to reduce the pressure inside the reducer. One is to reduce the grease inside the internal cavity of the reducer, but this affects the long-term efficient operation and life of the reducer. After the gear unit has been running for a period of time, the grease continuously moves to the surroundings, so that the grease on the sun gear and the planetary gear of the reducer results in a decrease in the load carrying capacity of the reducer at high speed, and the rated output torque decreases. The second method is to send the high pressure gas inside the reducer to the outside of the reducer. However, to ensure the safety of the reducer, and according to environmental requirements, oil, oil mist, oil mist, etc. can not be sent to the outside, while meeting the IP65 waterproof, dustproof, moisture-proof and other protection requirements. People naturally think of adding a one-way air valve. However, this is not suitable for planetary reducers that require small volume, high rotational efficiency and high reliability, especially for NEUGART's PLS, WPLS and HP (high performance) series.
(3) Temperature and pressure curve chart NICK patent technology successfully solved the bottleneck problem here.

(4) After applying the patented technology NICK system to Germany's NEUGART company's PLS, WPLS, PLS-HP and PLF-HP (high performance) series, the temperature rise has dropped by 50% after long-term high-speed operation. Reduced extrusion of the seal ring. It directly reduces a lot of friction and greatly improves the efficiency and life of the reducer. The input speed of the gear unit at rated output torque can be increased by 30%. Planetary gearboxes equipped with the NICK system are more suitable for automation in the long-term high-speed operation. Even when the long-term low-speed gearbox is equipped with a NICK system, its reliability and life are greatly improved.