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在高速重载下工作的齿轮,一般都承受较高的热负荷,故温度较高。而齿轮的温度决定着是否会发生胶合损坏,决定着润滑剂的特性同时也决定着齿轮的热变形,所以齿轮的温度估算显得十分重要。对于在稳定负荷下运转并处于热平衡状态的正齿轮可利用有限元素法求解其体积温度,并能通过一些适当的假设使问题得到简化,在估算出齿轮的放热系数和输入摩擦热后,便可进行计算。文中还对放热系数和输入摩擦热的理论计算作了一些介绍,并通过对一典型齿轮传动的温度计算,初步探讨了求解正齿轮体积温度的若干问题。
Under high-speed heavy-duty gear, generally have a higher heat load, so the temperature is higher. The gear temperature determines the occurrence of gluing damage, determines the characteristics of the lubricant also determines the gear thermal deformation, so the gear temperature estimation is very important. For spur gears that operate at steady load and are in thermal equilibrium, the finite element method is used to solve the volume temperature and the problem can be simplified by some appropriate assumptions. After estimating the gear exotherm and inputting the frictional heat, Can be calculated. In this paper, the theoretical calculation of the exothermic coefficient and input frictional heat are also introduced. By the calculation of the temperature of a typical gear drive, some problems of solving the volume temperature of spur gear are discussed.