| 摘要 |
<p>PURPOSE:To make it possible to eliminate a sizing step in a method of manufacturing a sintered rotor for a rotary pump, by redetermining the design data of a die mold after the completion of the data design of the shape of the rotor, and then by carrying out the die mold working of numerical control process. CONSTITUTION:By estimating that, of the data of a trochoid, the diameters of base circle and rolling circle are Amm. and Bmm., respectively, and that the amount and rate of eccentricity are (e) and (f=e/B), respectively, with the rate of A/B being set to (n), the data of the trochoid is selected to satisfy the equation I . Further, by estimating that the corrected value of a distance between the centers of the arcuate teeth of an outer rotor and the outer rotor, and the corrected value of the diameter of the arc are DELTAb and DELTAc, respectively, the values DELTAb, DELTAc are selected to satisfy the equation II, thereby the die mold working is carried out to correct the outer curve. Accordingly, the step of sizing may be eliminated.</p> |
