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Title:
船舶推進軸用の軸受
Document Type and Number:
Japanese Patent JP7343940
Kind Code:
B2
Abstract:
Provided is a bearing for supporting the propulsion shaft of a ship, with which it is possible to form a water coating with excellent lubricating characteristics on a sliding surface between the bearing and the propulsion shaft, and which is excellent in wear resistance and is economical. A bearing according to the present invention supports the propulsion shaft of a ship and includes, on an inner peripheral surface of a cylindrical shell, a sliding layer and an elastic layer in this order in the radial direction from the cylinder center, wherein the sliding layer has: a load action portion which is on the lower surface side of the inner peripheral surface of the shell and on which a load of the propulsion shaft acts, the center angle θ thereof being in a range of θ=60°-180° with the axis of symmetry being the vertical axis; and a cooling action portion which opposes the load action portion and is provided with a plurality of required water cooling grooves on both ends being the first and last. The vertical axis refers to the axis of symmetry of a lateral cross section of the shell parallel to the center of gravity direction of the propulsion shaft.

Inventors:
Yoshimasa Kanaka
Masataka Shikata
Kohei Harada
Kenji Yokogaki
Application Number:
JP2022516592A
Publication Date:
September 13, 2023
Filing Date:
November 20, 2020
Export Citation:
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Assignee:
Mikasa Co., Ltd.
International Classes:
B63H23/36; B63H23/32; F16C33/20
Domestic Patent References:
JP2009103307A
JP290419U
JP2002115719A
JP200428142A
JP3183964U
JP200466977A
Foreign References:
CN207921117U
CN207470605U
WO2001055607A1
Other References:
Hiroyuki Sadaら,“PTFE Partial Arc Bearing for Large Water-lubricated Tail-shafts”,Paper presented at the SNAME 13th Propeller and Shafting Symposium,Norfolk, Virginia,米国,2012年,p.1-8,DOI: 10.5957/PSS-2012-003
吉川文隆,“船舶推進系海水潤滑軸受の技術”,月刊トライボロジー,日本,株式会社新樹社,2016年06月10日,第30巻第6号,pp.21-23,ISSN 0914-6121
吉川文隆,“水潤滑軸受の信頼性向上に関する研究”,日本,長崎大学,2009年,pp.1-119
吉川文隆,賀中義雅,“海水潤滑すべり軸受のトライボロジー ―船舶推進系への応用―”,トライボロジスト,日本,日本トライボロジー学会,2015年12月15日,第60巻第12号,pp.784-790,DOI:10.18914/tribologist.60.12_784,ISSN 2189-9967(online),0915-1168(print)
吉川文隆,“海水潤滑船尾管軸受の高性能化 -環境と省エネに最適なフッ素系樹脂軸受”,日本マリンエンジニアリング学会誌,日本,日本マリンエンジニアリング学会,2011年01月,第46巻第1号,p.32-37,DOI:10.5988/jime.46.32,ISSN 1884-3778(online),1346-1427(print)
LITWIN, Wojciech,Experimental research on water lubricated three layer sliding bearing with lubrication grooves in th,Tribology International,Elsevier Ltd.,2015年,Vol.82,pp.153-161,DOI:10.1016/j.triboint.2014.10.002,ISSN 0301-679X
齋藤年正,海水潤滑船尾管軸受の性能評価,日本マリンエンジニアリング学会誌,日本,日本マリンエンジニアリング学会,2007年05月31日,第42巻第4号,pp.700-705,DOI:10.5988/jime.42.4_700,ISSN 1884-3778(online),1346-1427(print)
宇野昭夫,新セグメントタイプ海水潤滑船尾管軸受 -分割型ゴム軸受,日本マリンエンジニアリング学会誌,日本,日本マリンエンジニアリング学会,2012年11月01日,第47巻第6号,pp.878-881,DOI:10.5988/jime.47.878,ISSN 1884-3778(online),1346-1427(print)
BARSZCZEWSKA, Agenieszka,EXPERIMENTAL RESEARCH ON INSUFFICIENT WATER LUBRICATION OF MARINE STERN TUBE JOURNAL BEARING WITH EL,POLISH MARITIME RESEARCH,PO,GDANSK UNIVERSITY OF TECHNOLOGY,2020年,No 4, Vol.27,pp.91-102,DOI:10.2478/pomr-2020-0069,ISSN 1233-2585
Attorney, Agent or Firm:
Kuniyasu Tsurugame