Selection precautions for ZLY hard tooth surface cylindrical gear reducer
When selecting a ZLY hard tooth surface cylindrical gear reducer, in addition to considering the common factors of general reducer selection, there are also some special precautions for its hard tooth surface characteristics. The following is a detailed introduction for you:
Consider the characteristics of hard tooth surfaces
Tooth surface hardness and bearing capacity: The tooth surface of ZLY hard tooth cylindrical gear reducer is treated by quenching, grinding and other processes, and the hardness is relatively high, generally between HRC58-62. This gives it a high load-bearing capacity and wear resistance, but it is also important to avoid overloading, as hard tooth surfaces may experience failure forms such as tooth peeling and tooth breakage during overloading. When selecting, it is necessary to choose the specifications of the reducer reasonably based on the actual load situation, ensuring that its rated bearing capacity is greater than the working load.
Transmission efficiency: Hard toothed gears have high machining accuracy, low tooth surface roughness, and good meshing performance, resulting in high transmission efficiency, generally reaching 95% -98%. When selecting, if there are high requirements for energy consumption, this characteristic should be fully considered, and appropriate transmission ratios and gearbox models should be selected to improve the energy utilization efficiency of the system. However, it should also be noted that under different operating conditions, such as high speed, heavy load, or poor lubrication conditions, the transmission efficiency may decrease.
Consider lubrication and heat dissipation
Lubricating oil requirements: Due to the high hardness of the tooth surface of the hard tooth reducer, the contact stress during gear meshing is high, and high-quality lubricating oil is needed to ensure good lubrication and heat dissipation effects. It is generally recommended to use medium load industrial gear oil, and its viscosity grade should be selected according to the working temperature, speed, and load conditions of the reducer. For example, in high-temperature environments, lubricating oil with high viscosity should be selected to ensure the strength of the oil film; In low-temperature environments, it is necessary to use lubricating oil with good low-temperature fluidity to ensure the smooth start-up and operation of the gearbox.
Heat dissipation capability: Hard tooth surface reducers generate a certain amount of heat during operation. Although their transmission efficiency is high, poor heat dissipation may still lead to high oil temperature, affecting the performance and lifespan of the reducer. When selecting, the heat dissipation capacity of the gearbox should be considered. For situations with high power, high speed, or high working environment temperature, it may be necessary to choose a gearbox model with a larger heat dissipation area, or adopt forced cooling measures such as installing cooling fans, cooling water pipes, etc.
Consider installation and maintenance
Installation accuracy requirements: Hard tooth surface cylindrical gear reducers have high accuracy and strict requirements for installation accuracy. During installation, it is necessary to ensure the connection accuracy between the input shaft and output shaft of the reducer and other equipment, and the coaxiality error is generally required to be controlled within ± 0.05mm. Otherwise, it will cause poor gear meshing, generate additional vibration and noise, and accelerate the wear of gears and bearings. Therefore, when selecting, it is necessary to consider the installation conditions and accuracy requirements on site, and choose the appropriate installation method and connection form.
