LUBRICANT COMPOSITION FOR REDUCTION GEAR AND REDUCTION GEAR

PROBLEM TO BE SOLVED: To provide the lubricant composition for an eccentrically oscillating planetary gear type reduction gear that generates a small amount of sludge, has low input torque at a low temperature and increases starting efficiency compared with a conventional lubricant composition for a...

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Bibliographic Details
Main Authors KUMAGAI TAKAHIDE, ICHIMURA RYOSUKE, SAITO RYOSUKE, TANIMURA AKIRA, WANG HONGYOU
Format Patent
LanguageEnglish
Japanese
Published 30.08.2018
Subjects
BLASTING
CHEMISTRY
ENGINEERING ELEMENTS AND UNITS
FUELS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
LUBRICANTS
LUBRICATING COMPOSITIONS
MECHANICAL ENGINEERING
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
THERMAL INSULATION IN GENERAL
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide the lubricant composition for an eccentrically oscillating planetary gear type reduction gear that generates a small amount of sludge, has low input torque at a low temperature and increases starting efficiency compared with a conventional lubricant composition for an eccentrically oscillating planetary gear type reduction gear.SOLUTION: The lubricant composition for an eccentrically oscillating planetary gear type reduction gear comprises: (a) a base oil containing a synthetic oil, (b) at least one calcium salt selected from a group consisting of calcium salt of petroleum sulfonic acid, the calcium salt of alkyl aromatic sulfonic acid, the calcium salt of salicylate, the calcium salt of phenate, the calcium salt of oxidized wax, perbasic calcium salt of petroleum sulfonic acid, the perbasic calcium salt of alkyl aromatic sulfonic acid, the perbasic calcium salt of salicylate, the perbasic calcium salt of phenate and the perbasic calcium salt of oxidized wax, (c) an antioxidant and (d) glycerin fatty acid ester.SELECTED DRAWING: None 【課題】従来の偏心揺動式遊星歯車タイプの減速機用潤滑剤よりも、スラッジの発生量が少なく、低温下の入力トルクが低く、かつ起動効率を増大させた偏心揺動式遊星歯車タイプの減速機用潤滑剤組成物を提供すること。【解決手段】（ａ）合成油を含む基油、（ｂ）石油スルホン酸のカルシウム塩、アルキル芳香族スルホン酸のカルシウム塩、サリシレートのカルシウム塩、フェネートのカルシウム塩、酸化ワックスのカルシウム塩、石油スルホン酸の過塩基性カルシウム塩、アルキル芳香族スルホン酸の過塩基性カルシウム塩、サリシレートの過塩基性カルシウム塩、フェネートの過塩基性カルシウム塩、酸化ワックスの過塩基性カルシウム塩からなる群から選択される少なくとも１種のカルシウム塩、（ｃ）酸化防止剤、及び（ｄ）グリセリン脂肪酸エステルを含有する、偏心揺動式遊星歯車タイプの減速機用潤滑剤組成物。【選択図】なし
Bibliography:Application Number: JP20170030091