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洗車機（1.中車南京浦鎮(zhèn)車輛有限公司，江蘇 南京 210031；2.西南交通大學(xué) 牽引動力國家重點實驗室，四川 成都 610031）
摘要：介紹了一種用于城市軌道交通永磁直驅(qū)列車的柔性拖車轉(zhuǎn)向架，該轉(zhuǎn)向架采用了小軸距、小輪徑的設(shè)計方法。轉(zhuǎn)向架的構(gòu)架采用“交叉板式”橫梁實現(xiàn)柔性，能提供較低的扭轉(zhuǎn)剛度和合適的抗菱剛度，適應(yīng)線路不平順的能力更強。對構(gòu)架進行強度計算和疲勞試驗之后，發(fā)現(xiàn)測試結(jié)果滿足標(biāo)準(zhǔn)要求。對拖車柔性轉(zhuǎn)向架的扭曲減載性能進行了測試，發(fā)現(xiàn)該轉(zhuǎn)向架的輪重減載率較傳統(tǒng)轉(zhuǎn)向架偏低。同時對拖車柔性轉(zhuǎn)向架的構(gòu)架模態(tài)進行了測試，更加全面地掌握了該轉(zhuǎn)向架的特性。*終得到結(jié)論：該新型轉(zhuǎn)向架的各項指標(biāo)均滿足設(shè)計和標(biāo)準(zhǔn)要求，滿足線路實際運用要求。
關(guān)鍵詞：洗車機；拖車轉(zhuǎn)向架；柔性構(gòu)架；永磁直驅(qū)列車
中圖分類號：U270.33 文獻標(biāo)志碼：A doi：10.3969/j.issn.1006-0316.2022.02.004
文章編號：1006-0316 (2022) 02-0022-08
Study on Flexible Trailer Bogie for Urban Rail Transit
MA Xiaoguang1，XIAO Yao1，JIN Xiongfeng1，WANG Kang2
( 1.CRRC Nanjing Puzhen Co., Ltd., Nanjing 210031, China; 2.State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China )
Abstract：This article introduces a flexible trailer bogie for permanent magnet direct-drive trains in urban rail transit. The bogie adopts a design method of small wheelbase and small wheel diameter. The bogie frame adopts the "cross-plate" beam for flexibility, which can provide lower torsional stiffness and appropriate diamond stiffness, and has a stronger adaptability to line irregularities. After the strength calculation and fatigue test of the frame, it is found that the test results meet the standard requirements. The torsion load reduction performance of the trailer's flexible bogie is tested, and it is found that the wheel load reduction rate of the bogie is lower than that of the traditional bogie. At the same time, the frame mode of the trailer's flexible bogie is tested, and the characteristics of the bogie are more comprehensively grasped. Finally, it is concluded that all the indicators of the new bogie meet the design and standard requirements and meet the actual application requirements of the line.
Key words：trailer bogie；flexible frame；permanent magnet direct-drive train
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