The invention provides a rotor shaft, a rotor assembly and an air cycle machine. The rotor shaft comprises a reference shaft section (1), a first shaft section (2), a second shaft section (3) and a third shaft section (4), the first shaft section (2) is configured to be assembled with an expansion impeller (8), the second shaft section (3) is configured to be assembled with a compression impeller (9), the third shaft section (4) is configured to be assembled with a wind impeller (10), the first shaft section (2) and the second shaft section (3) are arranged at the two ends of the reference shaft section (1), the end faces of the two ends of the reference shaft section (1) form an axial positioning face (17), the diameter of the reference shaft section (1) is D1, the diameter of the first shaft section (2) is D2, the diameter of the second shaft section (3) is D3, the diameter of the third shaft section (4) is D4, D1 > D2, and D1 > D3 >= D4. According to the rotor shaft, the positioning precision of the compression impeller, the expansion impeller and the fan impeller during installation can be improved.
本申请提供一种转子轴、转子组件和空气循环机。该转子轴包括基准轴段(1)、第一轴段(2)、第二轴段(3)和第三轴段(4),第一轴段(2)被配置为装配膨胀叶轮(8),第二轴段(3)被配置为装配压缩叶轮(9),第三轴段(4)被配置为装配风叶轮(10),第一轴段(2)和第二轴段(3)设置在基准轴段(1)的两端,基准轴段(1)的两端端面形成轴向定位面(17),基准轴段(1)的直径为D1,第一轴段(2)的直径为D2,第二轴段(3)的直径为D3,第三轴段(4)的直径为D4,D1>D2,D1>D3≥D4。根据本申请的转子轴,能够提高压缩叶轮、膨胀叶轮和风叶轮安装时的定位精度。
Rotor shaft, rotor assembly and air cycle machine
转子轴、转子组件和空气循环机
2022-01-28
Patent
Electronic Resource
Chinese
European Patent Office | 2025
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