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1. (WO2019008265) SHAFT COUPLED TO A BEARING, METHOD FOR MANUFACTURING SUCH A SHAFT, AND MECHANICAL SYSTEM COMPRISING SUCH A SHAFT
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Pub. No.: WO/2019/008265 International Application No.: PCT/FR2018/051648
Publication Date: 10.01.2019 International Filing Date: 03.07.2018
IPC:
F16C 11/02 (2006.01) ,F16J 1/16 (2006.01) ,F16C 9/04 (2006.01) ,F16C 33/04 (2006.01) ,F16C 33/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
11
Pivots; Pivotal connections
02
Trunnions; Crank-pins
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
1
Pistons; Trunk pistons; Plungers
10
Connection to driving members
14
with connecting-rods, i.e. pivotal connections
16
with gudgeon-pin; Gudgeon-pins
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
9
Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
04
Connecting-rod bearings; Attachment thereof
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33
Parts of bearings; Special methods for making bearings or parts thereof
02
Parts of sliding-contact bearings
04
Brasses; Bushes; Linings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33
Parts of bearings; Special methods for making bearings or parts thereof
02
Parts of sliding-contact bearings
04
Brasses; Bushes; Linings
06
Sliding surface mainly made of metal
10
Construction relative to lubrication
Applicants:
H.E.F. [FR/FR]; Avenue Benoît Fourneyron 42160 ANDREZIEUX-BOUTHEON, FR
Inventors:
DIEW, Mohamadou Bocar; FR
GACHON, Yves René Alexis; FR
PROST, Fabrice; FR
Agent:
SEMAOUNE, Idriss; FR
BUCHET, Anne; FR
DENJEAN, Eric; FR
PALIX, Stéphane; FR
VUILLERMOZ, Bruno; FR
Priority Data:
175626503.07.2017FR
175684119.07.2017FR
Title (EN) SHAFT COUPLED TO A BEARING, METHOD FOR MANUFACTURING SUCH A SHAFT, AND MECHANICAL SYSTEM COMPRISING SUCH A SHAFT
(FR) AXE COUPLÉ A UN PALIER, PROCÉDÉ DE FABRICATION D'UN TEL AXE, ET SYSTÈME MÉCANIQUE COMPRENANT UN TEL AXE
Abstract:
(EN) The present invention relates to a shaft (10) designed to be coupled to a bearing (4), notably within a mechanical system (1) with which a combustion engine is equipped, being subjected to average contact pressures of less than 200 MPa. The shaft (10) has at least one region (12) provided with an anti-seizing surface coating (20) that has a surface hardness at least twice that of the shaft (10), and microtexturing (30) made up of a set of separate microcavities (31) that are distributed in said region (12). The invention also relates to a method for manufacturing such a shaft (10), and to a mechanical system (1) comprising such a shaft (10).
(FR) La présente invention concerne un axe (10) conçu pour être couplé à un palier(4), notamment au sein d'un système mécanique (1) équipant un moteur thermique, en étant soumis à des pressions de contact moyennes inférieures à 200 MPa. L'axe (10) comporte au moins une zone (12) pourvue d'un revêtement de surface (20) anti-grippage, présentant une dureté de surface au moins deux fois supérieure à celle de l'axe (10), et d'une microtexturation (30) constituée par un ensemble de microcavités (31) séparées, réparties dans ladite zone (12).L'invention concerne également un procédé de fabrication d'un tel axe (10), et un système mécanique (1) comprenant un tel axe (10).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)