PROPELLER SHAFT MANUFACTURING METHOD AND PROPELLER SHAFT

• Main Authors: AKITA, Yasushi, TSUTSUMI, Daiki, AOKI, Hidekazu, ISHIKURA, Kenichiro
• Format: Patent
• Language: English; French; Japanese
• Published: 21.09.2023
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BEARINGS; BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINE TOOLS; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PUNCHING METAL; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; SOLDERING OR UNSOLDERING; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS; WELDING; WORKING BY LASER BEAM

This propeller shaft (PS1) is configured so that: a weld (13) is formed by welding a first cylinder member (11) and a second cylinder member (12), and the thickness (Tw) of said weld is formed thinner than the thickness (T1) of a first end of a first cylinder section (111) and thinner than the thickness (T1) of a first end of a second cylinder section (121). Consequently, the thickness (Tw) of the weld (13) is reduced, and the weight of the weld (13) can be reduced. Due to this configuration, unbalanced rotation or yawing of the weld (13) when the propeller shaft (PS1) rotates can be suppressed. L'arbre d'hélice (PS1) selon la présente invention est configuré de telle sorte que : une soudure (13) est formée par soudage d'un premier élément de cylindre (11) et d'un second élément de cylindre (12), et l'épaisseur (Tw) de ladite soudure est formée plus mince que l'épaisseur (T1) d'une première extrémité d'une première section de cylindre (111) et plus mince que l'épaisseur (T1) d'une première extrémité d'une seconde section de cylindre (121). Par conséquent, l'épaisseur (Tw) de la soudure (13) est réduite, et le poids de la soudure (13) peut être réduit. Cette configuration permet de supprimer une rotation déséquilibrée ou un mouvement de lacet de la soudure (13) lorsque l'arbre d'hélice (PS1) est en rotation. 本発明に係るプロペラシャフト（ＰＳ１）は、第１筒部材（１１）と第２筒部材（１２）とを溶接してなる溶接部（１３）の厚さ（Ｔｗ）が、第１筒部（１１１）の第１端部の厚さ（Ｔ１）よりも薄く、かつ第２筒部（１２１）の第１端部の厚さ（Ｔ１）よりも薄く形成される。このため、溶接部（１３）の厚さ（Ｔｗ）が低減され、溶接部（１３）を軽量化することができる。これにより、プロペラシャフト（ＰＳ１）が回転する際の溶接部（１３）の振れや、回転のアンバランスを抑制することができる。