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(一)概述辅助传动装置,即冷却风扇传动装置。北京型3000马力内燃机车的辅助传动装置是由风扇偶合器、风扇偶合器的控制系统和管路及其附件所组成。该车上有两个冷却风扇,一个冷却柴油机的冷却水和液力传动箱的工作油(高温回路),另一个冷却增压空气(低温回路)。风扇采用偶合器单独驱动的方式,即每一个冷却风扇由一个偶合器驱动。因此,全车共有高温和低温两个风扇偶合器(见图1)。
(A) Overview Auxiliary transmission, that is, cooling fan drive. Beijing 3000 horsepower diesel locomotive auxiliary transmission is composed of fan couplings, fan coupling control system and piping and accessories. There are two cooling fans on the car, one for cooling the diesel engine’s coolant and hydraulic fluid (high temperature circuit), and the other for cooling the charge air (low temperature circuit). The fans are driven by the coupling alone, ie each cooling fan is driven by a coupling. Therefore, the car has a total of two high and low temperature fan coupling (see Figure 1).