Article List
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- What are the consequences of NGW reducer planetary carrier deformation or cracking?1. Deterioration of transmission accuracy and abnormal vibration The deformation of the planet carrier (especially the hidden deformation caused by long-term self-weight or heavy load) will change the relative position of the planet pin, directly causing the instantaneous center distance between the planet gear, sun gear, and internal ring gear to change. This spatial unevenness will cause the meshing state of the gear teeth to deteriorate: the meshing backlash at some locations approaches zero or even interferes, while the backlash on the opposite side increases sharply. This will cause the instantaneous stiffness of the transmission chain to fluctuate violently, which is especially obvious under low-speed conditions, resulting in continuous abnormal shaking and knocking of the reducer. 2. Serious imbalance of load distribution and accelerated wear. The deformation of the planet carrier (including torsion and bending deformation) will break the theoretical uniform load design. The deviation in the position of each planet pin hole will cause a serious imbalance in the proportion of loads borne by different planet wheels. A planetary wheel that carries too much weight will increase tooth surface wear and even cause tooth breakage; while a planetary wheel that carries too little weight may cause idling vibration.
- What are the effects of excessive coaxiality of NGW reducer?1. The transmission accuracy decreases and the coaxiality deviation will cause the gear meshing position to deviate from the theoretical center, increase the gear backlash, and cause the return clearance to exceed the standard. In applications that require frequent forward and reverse rotation or precise positioning, this will directly lead to inaccurate positioning and delayed response, seriously affecting transmission accuracy. 2. The deviation of mechanical efficiency reduction will cause uneven force on the gears, and the instantaneous transmission ratio will change during the transmission process, resulting in periodic fluctuations in output speed and torque. At the same time, the gear meshing surface has poor contact and changes from ideal line contact to point contact or partial contact. The contact stress increases sharply and sliding friction increases, resulting in a decrease in mechanical efficiency. 3. Increased vibration and noise. Due to the sudden change in center distance, the gears will generate impact loads when entering and exiting mesh, causing harsh noises. This vibration and noise will be transmitted to the box through the shaft and bearings, causing vibration of the entire machine. If the vibration frequency coincides with the natural frequency of the reducer or equipment, resonance may occur, further
- ZLY280‑16‑1 hard tooth surface reducer spline shaft frequent fault phenomena and causesThe spline shaft of the ZLY280‑16‑1 hard tooth surface gear reducer is a key torque transmission component. Most of the failure problems are concentrated in three categories: tooth surface wear, spline fracture, and plastic deformation of the shaft body. The various fault phenomena and inducing factors are explained below. 1. Spline tooth surface wear Tooth surface wear is the most common failure mode of spline shafts. Fault phenomenon: The flanks of the spline teeth are gradually worn and thinned, the matching gap between the spline shaft, the matching gear, and the connecting sleeve continues to increase, and the transmission matching accuracy decreases. Failure causes: Poor lubrication conditions: insufficient lubricant supply, mismatched lubricant grades, or oil mixed with metal particles and other impurities, causing dry friction and abrasive wear on the tooth surface. Working condition load impact: The equipment continues to bear vibration and impact loads during operation, which intensifies the relative friction loss between the spline meshing surfaces. Assembly coordination defects: The side clearance of the spline assembly is too large, which causes impact during torque transmission and accelerates the tooth surface wear process. 2. Spline breakage
- Analysis and systematic solutions for abnormal temperature rise of dough grinding machine reducerDuring the operation of the noodle grinder, it is normal for the reducer housing to be slightly warm. However, if the temperature continues to rise or even becomes hot to the touch, attention must be paid to it. Generally speaking, it is within the normal range for the shell temperature to exceed the ambient temperature by 30°C. Once it exceeds 80°C, the cause needs to be investigated. If it exceeds 90°C, the machine should be shut down immediately. Otherwise, it is easy to cause serious consequences such as gear sintering and bearing damage. The root cause of the high temperature of the reducer first points to the lubrication system. Lubricating oil is the 'blood' of the internal gears and bearings of the reducer. Once something goes wrong, the temperature will quickly get out of control. If the oil level is too low, the gears and bearings are in a state of dry friction, and metal and metal collide directly to generate heat; if the oil level is too high, the resistance generated by the gears churning the oil becomes an additional heat source; and after long-term use, the lubricating oil oxidizes and deteriorates, mixed with metal debris and dust impurities, and both the lubrication and heat dissipation capabilities fail, which will also cause the body to heat up rapidly. Therefore, you should make a habit of regularly checking the oil level glass in daily use.