| 摘要 |
<p>The invention provides a planetary reducer which reduces the possibility of buckling of a butting surface between a connecting part connecting a pair of wheel rack bodies and the wheel rack bodies. The reducer (10) comprises the first and second wheel rack bodies (34, 38) arranged at the two axial sides of external gears (planetary gears) (24, 26) and multiple wheel rack pins (42) respectively penetrating through wheel rack pin holes (24B, 26B) formed by the external gears (24, 26) and being connected with the wheel rack bodies (34, 38). The wheel rack pins (42) are provided with butting parts (42C) butting against the axial inner side surface of the wheel rack body (34). Compared with other parts of the wheel rack pins (42), the butting parts (42C) are expanded. Counter sinking parts (34B) are formed at places, butted against the butting parts (42C), on the wheel rack body (34).</p> |
