Method for manufacturing fluid power transmission

• Main Authors: NAMBARA MASARU, HORIE YUJI, AOSHIMA KATSUYOSHI, AMMA NOBUTAKA, OKAMURA TOMOHIRO
• Format: Patent
• Language: English
• Published: 21.01.2015
• Subjects: BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINED OPERATIONS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS; WELDING; WORKING BY LASER BEAM

The method for manufacturing fluid power transmissions sequentially performs: a first process of assembling a provisional blade-core assembly (38) obtained from connecting multiple blades (2b) to a core (2c) so as to move freely by lining up the multiple blades (2b) on a blade alignment jig (J1) and superposing the core (2c) above the group of blades (2b) while loosely inserting protruding pieces (30) provided on each blade (2b) in engaging holes (31) provided on the core (2c) and then bending the tips of the protruding pieces (30) so as to keep the protruding pieces (30) from slipping out of the engaging holes (31); a second process of setting the provisional blade-core assembly (38) at a prescribed position on the inner surface of a shell (2s); and a third process of soldering the protruding pieces (30) to the engaging holes (31) and the blades (2b) to the shell (2S), respectively. As a result, ease of assembly is favorable and it is possible to bond the three parts, the shell, the blades and the core, without strain and obtain a high quality impeller for a fluid power transmission.