GREASE PHYSICAL PROPERTY MEASUREMENT DEVICE

• Main Author: YASUDA HIROTAKA
• Format: Patent
• Language: English; Japanese
• Published: 20.05.2021
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LIGHTING; LUBRICATING; MEASURING; MECHANICAL ENGINEERING; PHYSICS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a device capable of measuring the physical property of a used grease in a rolling bearing at a place apart from the rolling bearing.SOLUTION: A physical property measuring device 10 comprises: a flow pipe 11 in which a grease discharged from a rolling bearing flows; a reservoir implement 12 that has an introducing port 23, a reservoir chamber 22, and a discharge port 24 of the grease; a penetration mechanism 13 that has a piston 41 and a driving portion 42 reciprocating the piston 41, and penetrates the piston into the grease in the reservoir chamber 22; and a measuring instrument 14 measuring flow resistance generated when the piston 41 penetrates the grease in the reservoir chamber 22. The piston 41 can reciprocate in a first direction penetrating into the grease in the reservoir chamber 22 and a second direction opposite thereto. The reservoir implement 12 has a regulating portion 25 that regulates the movement of the piston 41 in the second direction. The physical property measuring device 10 further comprises a load reducing member 73 that reduces a load of the driving portion 42 when the piston 41 reaches the regulating portion 25 or immediately before reaching.SELECTED DRAWING: Figure 1 【課題】転がり軸受から離れた場所で転がり軸受内の使用済みのグリースの物性の測定を可能とする装置を提供する。【解決手段】物性測定装置１０は、転がり軸受から排出されるグリースが流動する流動管１１と、グリースの導入口２３、貯留室２２、及び排出口２４を有する貯留具１２と、ピストン４１及びピストン４１を往復移動させる駆動部４２を有しかつ貯留室２２内のグリースにピストンを貫入させる貫入機構１３と、ピストン４１が貯留室２２内のグリースに貫入する際の流動抵抗を測定する測定器１４とを備え、ピストン４１が、貯留室２２内のグリースに貫入する第１の方向とその逆の第２の方向とに往復移動可能であり、貯留具１２が、第２の方向のピストン４１の移動を制限する規制部２５を有し、ピストン４１が規制部２５に達したとき又は達する直前の駆動部４２の負荷を軽減する負荷軽減部材７３をさらに備える。【選択図】図１