Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
機場捷運電聯車轉向架簡介 Introduction to the TIAA MRT EMU Bogie
機場捷運電聯車轉向架。

電聯車轉向架係支撐車體並引導車輛運行的裝置,除了提供車體的承載之外,最重要的是在安全的前提下,提高行車穩定、速度及舒適性。
機場捷運電聯車區分為普通車及直達車,每列車的轉向架全部均為動力轉向架,轉向架除本身之架框結構外, 裝置有牽引馬達,以提供牽引動力之來源,其它包括懸吊系統(一次懸吊橡膠彈簧圈、二次懸吊空氣彈簧)、輪軸、齒輪箱、撓性聯軸器、煞車系統、軸箱、輪緣潤滑器及集電器等裝置。
轉向架基本規格如后,軸距: 2,100mm、輪徑:850mm、齒輪比:2.79、最高設計速度:110公里/小時、最高營運速度:100公里/小時。
機場捷運電聯車為符合較小曲率半徑的軌道線形所需,故採用承樑式轉向架,側向軸承讓轉向架架框使車體於過彎時提供較小的旋轉阻力;惟每車廂兩個轉向架共設置兩個承樑,因而增加重量為其缺點,為減輕車重故利用承樑內部作為空氣彈簧的儲氣桶。

The EMU bogie is an apparatus that supports the vehicle weight and guides its operation. Aside from the necessity of providing support, the purpose of the bogie is to provide stability, speed and comfort during safe operation.
The TIAA MRT EMUs, including commuter trains and express trains, are all equipped with power bogies. A bogie is made of the structural frames, traction motor that provides traction power, suspension system (including primary suspension of coil spring/rubber and secondary suspension of air spring), wheel and axle, gearbox, flexible coupling, braking system, axle box, flange lubricator, current collector, etc.
The basic specifications of the bogie are as follows, wheelbase: 2,100mm, wheel diameter: 850mm, gear ratio: 2.79, maximum design speed: 110 km/hr, maximum operation speed: 100 km/hr.
To cope with the alignment with a smaller radius of curvature, the TIAA MRT EMU adopted the bolster bogie in which the side bearing provide a smaller rotational resistance while running on curved tracks. The disadvantage of using a bolster bogie is that there are two bolsters for each car which increases car tare weight. Therefore, utilizing the interior of the bolster as the storage barrels of air suspension will reduce vehicle weight.

  • 每節車廂下配置兩套二軸式轉向架。
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