公开(公告)号：US5635778A

公开(公告)日：1997-06-03

申请号：US363518

申请日：1994-12-23

申请人： Toru Fujita ,  Kozo Hattori ,  Yukihiro Nishio ,  Takashi Sato

发明人： Toru Fujita ,  Kozo Hattori ,  Yukihiro Nishio ,  Takashi Sato

IPC分类号： B60T8/40 ,  F04B17/03 ,  G01M1/34 ,  H02K5/14 ,  H02K5/22 ,  H02K7/04 ,  H02K7/14 ,  H02N1/22

CPC分类号： G01M1/34 ,  B60T8/4022 ,  F04B17/03 ,  H02K7/04 ,  H02K5/14 ,  H02K5/225 ,  H02K7/14 ,  Y10T74/211

摘要： A motor for electric pumps which can easily prevent unbalance caused by the eccentricity of an armature shaft when the motor is in rotation by forming holes in a plurality of armature core sheets. In the motor for electric pumps with an armature shaft forming the spindle of the motor and being provided with an eccentric portion for driving a piston pump, hole portions are provided in a plurality of core sheets fit on the armature shaft. The hole portions are formed such that eccentricity of the armature shaft due to the eccentric portion can be offset. The hole portions are provided in positions where the unbalance caused by both the eccentric portion and the piston pump that is driven by the eccentric portion are offset, or at least the unbalance forces generated during rotation are minimized.

摘要翻译： 一种用于电动泵的电动机，其能够通过在多个电枢铁芯片中形成孔来容易地防止当电动机旋转时由电枢轴的偏心引起的不平衡。 在具有形成电动机的主轴的电枢轴的电动机中，设置有用于驱动活塞泵的偏心部分，在配合在电枢轴上的多个芯板上设置有孔部。 孔部形成为能够抵消由偏心部引起的电枢轴的偏心。 孔部设置在由偏心部驱动的偏心部和活塞泵所产生的不平衡偏移的位置，或至少旋转中产生的不平衡力最小的位置。