초록 ▼

A first slip ring and a second slip ring are put from both ends of a slip ring shaft, respectively, and are attached by shrink-fitting, the slip ring shaft being provided separately from a rotor shaft; the shaft diameter of a lead connecting portion is formed larger than the shaft diameters of respe

A first slip ring and a second slip ring are put from both ends of a slip ring shaft, respectively, and are attached by shrink-fitting, the slip ring shaft being provided separately from a rotor shaft; the shaft diameter of a lead connecting portion is formed larger than the shaft diameters of respective slip ring attaching portions; and a coupling, which is attached by shrink-fitting to a shaft end portion on the rotor shaft side of the slip ring shaft after the first slip ring is attached by shrink-fitting, is provided.

대표청구항 ▼

1. A slip ring device comprising: a slip ring shaft provided separately from a rotor shaft;a first slip ring and a second slip ring, both of which being put from both ends of said slip ring shaft, respectively, said first slip ring being attached by shrink-fitting to a first slip ring attaching port

1. A slip ring device comprising: a slip ring shaft provided separately from a rotor shaft;a first slip ring and a second slip ring, both of which being put from both ends of said slip ring shaft, respectively, said first slip ring being attached by shrink-fitting to a first slip ring attaching portion of said slip ring shaft, and said second slip ring being attached by shrink-fitting to a second slip ring attaching portion of said slip ring shaft;a lead connecting portion which is located between the first slip ring attaching portion and the second slip ring attaching portion in said slip ring shaft and is formed to be a shaft diameter larger than the shaft diameters of the first slip ring attaching portion and the second slip ring attaching portion of said slip ring shaft;a first radial lead and a second radial lead, said first radial lead being placed in a first radial lead placing hole and said second radial lead being placed in a second radial lead placing hole, said radial lead placing holes being formed in the lead connecting portion;a first axial lead and a second axial lead, both of which being placed in a hollow hole formed in a central portion of said slip ring shaft, said first axial lead being connected to said first radial lead and said second axial lead being connected to said second radial lead;a first slip ring lead which is connected to said first slip ring and to said first radial lead;a second slip ring lead which is connected to said second slip ring and to said second radial lead; anda coupling which is attached by shrink-fitting to a shaft end portion on the rotor shaft side of said slip ring shaft after said first slip ring is attached by shrink-fitting. 2. The slip ring device according to claim 1, wherein each of said first slip ring lead and said second slip ring lead passes through a corresponding lead groove formed in the lead connecting portion and is fixed by a corresponding wedge attached by insertion in a corresponding wedge groove formed in the lead groove portion. 3. The slip ring device according to claim 1, wherein said slip ring shaft is made of material having higher strength than material of said rotor shaft. 4. A rotary electric machine using the slip ring device as set forth in claim 1. 5. The slip ring device according to claim 2, wherein said slip ring shaft is made of material having higher strength than material of said rotor shaft. 6. A rotary electric machine using the slip ring device as set forth in claim 2. 7. A rotary electric machine using the slip ring device as set forth in claim 3. 8. A rotary electric machine using the slip ring device as set forth in claim 5.