MANUFACTURING METHOD OF OIL LIFTER

• Main Authors: URANO KENJI, MASUTANI HIDETOSHI, ARAKI SHINICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 23.01.2020
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

To provide a manufacturing method of an oil lifter 25 which is suitable for small lot production.SOLUTION: There is provided a manufacturing method of an oil lifter 25 disposed so as to enclose an outer periphery of a shaft sealing member which seals a rotary shaft inserted into an oil chamber and having a cylindrical body 26, and an oil guide member 29 which is attached to an inner peripheral surface of the body 26 and inclines upward relative to a rotation direction of the rotary shaft. The method has an oil guide member attachment process in which a protruding piece 45 provided at the outer periphery side of the oil guide member 29 is inserted into a through hole 46 formed at the body 26 from the inner side of the body 26 and welded to the body 26 from the outer side of the body 26 to attach the oil guide member 29 to the inner peripheral surface of the body 26.SELECTED DRAWING: Figure 11 【課題】小ロット生産に適したオイルリフター２５の製造方法を提供する【解決手段】オイル室に挿通される回転軸を軸封する軸封部材の外周を囲繞するように配設されており、筒状の本体２６と、本体２６の内周面に取付けられ、回転軸の回転方向に対して上り勾配で傾斜しているオイル案内部材２９とを有するオイルリフター２５の製造方法であって、オイル案内部材２９の外周側に設けられた突片４５を、本体２６の内側から、本体２６に形成された貫通孔４６に挿入し、突片４５を本体２６の外側から本体２６に溶接接合することによって、オイル案内部材２９を本体２６の内周面に取付けるオイル案内部材取付工程を有する。【選択図】図１１