Gear drive system is the core mechanism of mechanical equipment

Gear drive system is the core mechanism of mechanical equipment and the main equipment to determine the performance of the whole machine. However, for high-speed and heavy-load gear system, its thermal behavior has become an important factor limiting its development.Thermal deformation of gear system due to temperature field will increase noise and vibration of transmission system. Thermal gluing damage caused by transient contact temperature has more and more significant effect on normal production, making thermal design and thermal checking of gear system necessary.

The thermal behavior of gear system during operation includes temperature field distribution, thermal deformation, thermoelastic weighing, thermal bonding strength, etc.The thermal behavior of transmission system has a great influence in aerospace, automobile, CNC lathe processing and other fields, which will increase the noise and vibration of the system and affect the accuracy and reliability of the whole machine. Moreover, the damage of thermal gluing is fatal to the gear system because of its sudden and unpredictable characteristics.Therefore, more accurate calculation and design checks are required for the thermal behavior of the transmission system to improve the reliability of the system.

It is shown that improving the machining and installation accuracy of gear teeth alone can not effectively solve vibration and noise, but will increase the processing and manufacturing costs without compensation, so the necessary profile modification must be carried out.For high-speed and heavy-duty gears, the influence of thermal deformation must be taken into account in profile modification to minimize offset load, impact and noise to improve the gluing load-carrying capacity.

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