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Fluid coupling transmission heavy gear , fluid coupling and its control system consisting of high-speed electro-hydraulic composite transmission speed range is generally up to 25% -97 % , mainly applies to operating speed changes occasions. In the case of the motor speed constant , stepless adjustment , with low power consumption , long life , high control accuracy , high reliability , shock and vibration small , energy-saving effect , operation and maintenance costs and low input and output ground . Conditions for supercritical / ultra-supercritical thermal power units , respectively, using the thermal network method and finite element method on the the pre growth rate of the fluid coupling transmission gear part of the steady-state thermal analysis , thermal analysis results guidance drive the device structure design . This paper completed the following work: 1 , based on the basic principles of heat transfer analysis of the fluid coupling transmission the fever mechanism and heat transfer , and to make a reasonable simplification and assumptions , to its pre- growth gear transmission for comparison, and the ordinary gear transmission and find its thermal equilibrium analysis method . 2 , based on the principle of thermal network method , in the the pre overdrive gear the vice part set temperature of the fluid coupling transmission node , and the establishment of heat, convective heat transfer , thermal resistance model , and then based on the the thermal the network diagrams columns equations , get thermal resistance the matrix , temperature node vector and the heat source vector solving the temperature values ??of the thermal equilibrium temperature node . 3 , based on the basic theory of the finite element method , the derivation of the gear bulk temperature field in steady state conditions, the heat balance equation , helical gear body temperature field reasonable assumptions , the establishment of a helical gear teeth entity model and the steady - state temperature field analysis , the final helical model of the steady-state temperature field distribution . Analysis and comparison , analysis of the results of the presence of different reasons , the results obtained by these two methods to obtain a series of useful conclusions , provide support for the structural design of the hydraulic coupling gear . , Analysis modulus , tooth width , helix angle and initial oil temperature on the steady-state temperature field for structural design support . 6 Looking thermal equilibrium analysis of high-speed heavy gear and gear body steady temperature field analysis .
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