Electric machine splitting or assembling device, electric machine splitting method, and electric machine assembling method

A device for splitting or assembling an electric machine of a wind turbine, the device comprising at least one of a first disassembly device or a second disassembly device, and a sleeving device, wherein:

• the sleeving device is configured for separating or coaxially sleeving a first rotary body and a second rotary body of the electric machine;
• the first disassembly device is configured for fixing the first rotary body and comprises at least two first separable portions which are detachably connected with each other, and the first rotary body is split into petals in a circumferential direction by disassembling the first separable portions by the first disassembly device, or respective petal segments of the first rotary body are assembled in the circumferential direction by combining the first separable portions by the first disassembly device;
• and
• the second disassembly device is configured to be fixed to the second rotary body and comprises at least two second separable portions which are detachably connected with each other, and the second rotary body is split into petals in the circumferential direction by disassembling the second separable portions by the second disassembly device, or respective petal segments of the second rotary body are assembled in the circumferential direction by combining the second separable portions by the second disassembly device.