20-02-2014 дата публикации
Номер: US20140047938A1
A unit type wave gear device () has a unit housing (), one end of which is defined by a two-stage cross roller bearing (). The two-stage cross roller bearing () has: an inner cross roller bearing formed by an inner ring (), an intermediate ring (), and inner rollers () inserted into an inner track (); and has an outer cross roller bearing formed by an outer ring (), the intermediate ring (), and outer rollers () inserted into an outer track (). A flexible externally-toothed gear () affixed to the intermediate ring () is rotatably supported by the unit housing () via the outer cross roller bearing. An input shaft () affixed to the inner ring () and a wave generator () affixed to the input shaft () are rotatably supported by the intermediate ring () via the inner cross roller bearing. A unit type wave gear device can be realized in which the number of components are reduced and a large moment load is applied. 11. A unit type wave gear device () characterized in comprising:{'b': '2', 'a tubular unit housing ();'}{'b': 3', '2, 'a wave gear mechanism () coaxially disposed inside the unit housing (); and'}{'b': 4', '3', '3, 'an input shaft () passing through a center of the wave gear mechanism () and extending coaxially with the wave gear mechanism (); wherein'}{'b': 2', '5', '6', '5', '5', '1', '7', '5', '5', '1, 'i': a', 'a', 'b', 'a, 'the unit housing () has a cylindrical member (), an end plate () fixed to a first end face () formed at one end of the cylindrical member () along an axial line () of the cylindrical member, and a two-stage cross roller bearing () disposed on a side of a second end face () formed at the other end of the cylindrical member () along the axial line ();'}{'b': 7', '11', '5', '5', '12', '11', '13', '12', '14', '11', '12', '15', '14', '16', '12', '13', '17', '16, 'i': 'b', 'the two-stage cross roller bearing () has an outer ring () fixed to the second end face () of the cylindrical member (), an intermediate ring () concentrically disposed on ...
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