Whether Fran planetary gear self-locking? Not self-locking worm gear is mainly characterized by a self-locking feature reverse gear maintenance, can have a greater reduction ratio, the input shaft and output shaft are not on the same axis, not in the same plane. But generally larger, the transmission efficiency is not high, accuracy is not high. Planetary gear reducer is a gear transmission mechanism, its structure diagram without painting, very simple, imagine a small two circles, two concentric circles, the annular portion between the two circles there are three other small round reducer repair steps, all of the largest circle within a ring gear, the other four are small round gear, that is called the middle sun gear, the other three small circle called planetary wheel. Servo motor drives the sun gear reducer imported reducer maintenance, the sun gear and then drive support, including maintenance of the planetary wheel gear units, planetary gear teeth on the ring gear through its engagement with the outer ring gear, drive the outer ring gear an output shaft connected to reach the reduction goal. Planetary Gearheads The advantage is relatively compact structure, small backlash, high precision, long life, rated output torque can do great. But the price is slightly more expensive. Flender reducer applied Crane Case: "Titlis" brand QTZ500 tower cranes, rated load moment 500tm, maximum weight 25t, construction lifts, independent height 77m, the maximum height of 322m; extensive use of high-strength steel, Shandong crane, light weight, the tower moments were a small force; lifting intelligent frequency conversion control technology, according to the load to select the frequency, the impact is small, smooth speed control; lifting gear used in Germany with fan flender gear, brake use with release Hua Wu brake testing, high reliability; slewing, luffing variable frequency speed control system with a vortex, from the smooth braking; slewing, luffing adopt Sichuan long and brand reducer (Manitowoc use); installation of remote security monitoring system , real time in the office tower various working conditions, pedestal monitor and electronic control mechanism to achieve the communication, the driver can monitor real-time input various parameters and various electrical conditions (gear, current, voltage, frequency equivalent), determines whether or not working at all times; using standard chip mounted section 2.45m × 2.45m × 5m, reducing transport and storage volume; humane oblique ladders and rest platforms. Its main function is the level of short-distance transport of loads of vertical transportation and construction within the site. Tianjin reducer gearbox repair maintenance _ _ Taian recognize Zhunsipurui provided by Jinan Electrical Equipment Co., Springfield. Jinan Springfield Electrical Equipment Co. (www.jnspray.cn) strong, credible, in Jinan, Shandong's industrial maintenance, installation and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving Jinan innovative ideas will lead into the brilliant Springfield and you work for a better future!