公开(公告)号：US09239082B2

公开(公告)日：2016-01-19

申请号：US13578466

申请日：2010-08-23

申请人： Tomoaki Kaimori ,  Kenichi Nakayama ,  Yasuyuki Saito ,  Dai Ikeda

发明人： Tomoaki Kaimori ,  Kenichi Nakayama ,  Yasuyuki Saito ,  Dai Ikeda

IPC分类号： H02K1/28 ,  F16D1/08

CPC分类号： F16D1/0876 ,  H02K1/28

摘要： A rotor comprising: a rotating shaft with at least one keyway formed at an outer circumferential surface thereof and ranging along an axial direction; and a rotor core that includes a key that projects out on an inner circumferential side thereof, and is fitted in the keyway; wherein: a recessed portion that widens outward along a radial direction is formed at each of two sides of the key facing opposite each other along a circumferential direction at the rotor core; a planar portion is formed at a bottom area of the recessed portion so as to lessen stress occurring on each of the two sides of the key facing opposite each other along the circumferential direction; the planar portion is a straight contoured portion extending over a predetermined length along a direction perpendicular to a direction in which the key projects out, and a connecting side surface extending to an inner circumference of the rotor core is formed continuously to an end of the straight contoured portion located on a side opposite from a key side where a key is present; a first corner portion, connecting a side surface of the key with a key-side end of the straight contoured portion, is formed as a circular arc contoured portion; a second corner portion, connecting the end of the straight contoured portion, located on the side opposite from the key side, with the connecting side surface, is formed as a circular arc contoured portion; and dimensions and shapes of various portions are determined so as to substantially equalize stress levels in the first corner portion and in the second corner portion.

摘要翻译： 一种转子，包括：旋转轴，具有形成在其外圆周表面上并沿着轴向方向的至少一个键槽; 以及转子芯，其包括在其内周侧突出的键，并且嵌合在所述键槽中; 其特征在于：沿所述转子铁芯的圆周方向相对地彼此面对的所述键的两侧的每一侧形成有沿径向向外变宽的凹部， 在凹部的底部区域形成有平面部，以便沿着圆周方向减小键彼此面对的各个面上产生的应力; 平面部分是沿着与键突出的方向垂直的方向在预定长度上延伸的直线形部分，并且延伸到转子芯的内周的连接侧表面连续地形成在直线的端部 位于与存在钥匙的键侧相对的一侧的轮廓部分; 将键的侧面与直线成型部的键侧端部连接的第一角部形成为圆弧成形部， 将位于与键侧相对的一侧的直线轮廓部分的端部与连接侧表面连接的第二角部形成为圆弧成形部分; 确定各部分的尺寸和形状，以使第一拐角部分和第二拐角部分的应力水平基本相等。

公开(公告)号：US20130043761A1

公开(公告)日：2013-02-21

申请号：US13578466

申请日：2010-08-23

申请人： Tomoaki Kaimori ,  Kenichi Nakayama ,  Yasuyuki Saito ,  Dai Ikeda

发明人： Tomoaki Kaimori ,  Kenichi Nakayama ,  Yasuyuki Saito ,  Dai Ikeda

IPC分类号： H02K1/28

CPC分类号： F16D1/0876 ,  H02K1/28

摘要： A rotor comprising: a rotating shaft with at least one keyway formed at an outer circumferential surface thereof and ranging along an axial direction; and a rotor core that includes a key that projects out on an inner circumferential side thereof, and is fitted in the keyway; wherein: a recessed portion that widens outward along a radial direction is formed at each of two sides of the key facing opposite each other along a circumferential direction at the rotor core; a planar portion is formed at a bottom area of the recessed portion so as to lessen stress occurring on each of the two sides of the key facing opposite each other along the circumferential direction; the planar portion is a straight contoured portion extending over a predetermined length along a direction perpendicular to a direction in which the key projects out, and a connecting side surface extending to an inner circumference of the rotor core is formed continuously to an end of the straight contoured portion located on a side opposite from a key side where a key is present; a first corner portion, connecting a side surface of the key with a key-side end of the straight contoured portion, is formed as a circular arc contoured portion; a second corner portion, connecting the end of the straight contoured portion, located on the side opposite from the key side, with the connecting side surface, is formed as a circular arc contoured portion; and dimensions and shapes of various portions are determined so as to substantially equalize stress levels in the first corner portion and in the second corner portion.

摘要翻译： 一种转子，包括：旋转轴，具有形成在其外圆周表面上并沿着轴向方向的至少一个键槽; 以及转子芯，其包括在其内周侧突出的键，并且嵌合在所述键槽中; 其特征在于：沿所述转子铁芯的圆周方向相对地彼此面对的所述键的两侧的每一侧形成有沿径向向外变宽的凹部， 在凹部的底部区域形成有平面部，以便沿着圆周方向减小键彼此面对的各个面上产生的应力; 平面部分是沿着与键突出的方向垂直的方向在预定长度上延伸的直线形部分，并且延伸到转子芯的内周的连接侧表面连续地形成在直线的端部 位于与存在钥匙的键侧相对的一侧的轮廓部分; 将键的侧面与直线成型部的键侧端部连接的第一角部形成为圆弧成形部， 将位于与键侧相对的一侧的直线轮廓部分的端部与连接侧表面连接的第二角部形成为圆弧成形部分; 确定各部分的尺寸和形状，以使第一拐角部分和第二拐角部分的应力水平基本相等。