WO2009150803A1 - 摩擦伝動ベルト及びそれを用いたベルト伝動装置 - Google Patents
摩擦伝動ベルト及びそれを用いたベルト伝動装置 Download PDFInfo
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- WO2009150803A1 WO2009150803A1 PCT/JP2009/002523 JP2009002523W WO2009150803A1 WO 2009150803 A1 WO2009150803 A1 WO 2009150803A1 JP 2009002523 W JP2009002523 W JP 2009002523W WO 2009150803 A1 WO2009150803 A1 WO 2009150803A1
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- pulley
- belt
- rubber
- parts
- rubber composition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/04—V-belts, i.e. belts of tapered cross-section made of rubber
- F16G5/06—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/20—V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
Definitions
- the present invention relates to a friction transmission belt and a belt transmission device using the same.
- a device in which a V-ribbed belt is wound around a plurality of pulleys is widely used.
- a compression rubber layer is formed of a rubber composition in which ultrashort fibers having a fiber length of 0.1 to 1.0 mm and a moisture content of 6 to 20% are blended in an amount of 1 to 15 parts by mass with respect to 100 parts by mass of rubber.
- the formed V-ribbed belt is disclosed, and it is described that it is possible to suppress the occurrence of belt slip even during water injection and to maintain the effect over time.
- each of the rib portions includes a short cotton fiber, and an intermediate short fiber having an elastic modulus intermediate between the elastic modulus of the main rubber constituting the rib portion and the elastic modulus of the cotton short fiber, and A V-ribbed belt in which is contained is disclosed.
- the water during water pouring is absorbed by the short cotton fibers, and the change of the friction coefficient accompanying the transition from the wet state to the dry state is smoothly performed.
- an intermediate short fiber having an elastic modulus intermediate between the elastic moduli can suppress an abrupt stick-slip phenomenon and prevent the occurrence of abnormal noise by preventing repeated sliding and close contact.
- Patent Document 3 discloses a V-ribbed belt in which a rubber composition compression rubber layer in which 5 to 60 parts by weight of hollow short fibers are blended with 100 parts by weight of rubber is constituted. And according to this, it is described that it is possible to obtain a V-ribbed belt that suppresses the deterioration of transmission performance and the occurrence of abnormal noise when wet and further has excellent wear resistance and durability.
- JP 2004-125012 A Japanese Patent Laid-Open No. 2003-202055 JP 2007-198468 A
- An object of the present invention is to provide a friction transmission belt and a belt transmission device using the friction transmission belt that can suppress the generation of abnormal noise when wet when used by being wound around a small-diameter pulley.
- the friction transmission belt of the present invention uses an ethylene- ⁇ -olefin elastomer as a raw rubber, carbon black having an iodine adsorption of 40 mg / g or less, 3 to 10 parts by weight of aramid short fibers with respect to 100 parts by weight of the raw rubber,
- the pulley contact part is formed with the rubber composition which mix
- the belt transmission device of the present invention is characterized in that the friction transmission belt of the present invention is wound around a plurality of pulleys including a pulley having a pulley diameter of 70 mm or less.
- the pulley contact portion uses ethylene- ⁇ -olefin elastomer as raw rubber, carbon black having an iodine adsorption of 40 mg / g or less, and 3 to 10 parts by weight of aramid with respect to 100 parts by weight of raw rubber. Since it is formed of a rubber composition blended with short fibers, it is possible to suppress the generation of abnormal noise when it is wet even if it is wound around a small-diameter pulley.
- FIG. 6 is a layout diagram of pulleys of a belt drive device for driving auxiliary equipment.
- FIG. 3 is a layout diagram of pulleys of a belt test traveling machine used in water injection abnormal noise test evaluation 1; It is a layout diagram of the pulley of the belt test traveling machine used in the water injection abnormal noise test evaluation 2. It is a layout diagram of pulleys of a belt test traveling machine used in a heat-resistant belt traveling test.
- FIG. 1 shows a V-ribbed belt B according to this embodiment.
- This V-ribbed belt B is used, for example, in an accessory drive belt transmission device provided in an engine room of an automobile.
- the V-ribbed belt B includes a V-ribbed belt main body 10 configured as a double layer of an adhesive rubber layer 11 on the belt outer peripheral side and a compression rubber layer 12 on the belt inner peripheral side, and the belt outer peripheral side of the V-ribbed belt main body 10.
- a reinforcing cloth 17 is stuck on the surface.
- a core wire 16 is embedded in the adhesive rubber layer 11 so as to form a spiral having a pitch in the belt width direction.
- the V-ribbed belt B is formed to have a belt circumferential length of 700 to 3000 mm, a belt width of 10 to 36 mm, and a belt thickness of 4.0 to 5.0 mm.
- the adhesive rubber layer 11 is formed in a band shape having a horizontally long cross section, and is formed to have a thickness of 1.0 to 2.5 mm, for example.
- the adhesive rubber layer 11 is formed of a rubber composition in which various compounding agents are blended with raw material rubber.
- the raw rubber of the rubber composition constituting the adhesive rubber layer 11 include ethylene- ⁇ -olefin elastomers such as ethylene / propylene rubber (EPR) and ethylene propylene diene monomer rubber (EPDM), chloroprene rubber (CR), chloro Examples thereof include sulfonated polyethylene rubber (CSM) and hydrogenated acrylonitrile rubber (H-NBR).
- ethylene- ⁇ -olefin elastomers are preferred from the viewpoints of environmental considerations and performance such as wear resistance and crack resistance.
- the compounding agent include a crosslinking agent, a crosslinking accelerator, a crosslinking acceleration assistant, a plasticizer, a process oil, an antiaging agent, a reinforcing material such as carbon black and short fibers, and a filler.
- the rubber composition forming the adhesive rubber layer 11 is obtained by heating and pressurizing an uncrosslinked rubber composition obtained by blending a raw material rubber with a compounding agent and kneading, and then crosslinking with a crosslinking agent.
- the compression rubber layer 12 is provided such that a plurality of V ribs 13 hang down to the inner peripheral side of the belt.
- the plurality of V ribs 13 constitute a pulley contact portion, and each of the V ribs 13 is formed in a ridge having a substantially inverted triangular cross section extending in the belt length direction, and is arranged in parallel in the belt width direction.
- Each V-rib 13 is formed, for example, with a rib height of 2.0 to 3.0 mm and a width between base ends of 1.0 to 3.6 mm.
- the number of ribs is, for example, 3 to 6 (in FIG. 1, the number of ribs is 6).
- the compressed rubber layer 12 is formed of a rubber composition in which an ethylene- ⁇ -olefin elastomer such as ethylene / propylene rubber (EPR) or ethylene propylene diene monomer rubber (EPDM) is used as a raw rubber, and various compounding agents are blended therein.
- EPR ethylene / propylene rubber
- EPDM ethylene propylene diene monomer rubber
- the rubber composition for forming the compressed rubber layer 12 is obtained by heating and pressurizing an uncrosslinked rubber composition obtained by blending a raw material rubber with a compounding agent and kneading, and then crosslinking with a crosslinking agent.
- a crosslinking agent blended in the rubber composition of the compressed rubber layer 12 in addition to essential large particle size carbon black and aramid short fibers 14, for example, a crosslinking agent, a crosslinking accelerator, a crosslinking acceleration aid, a plasticizer, examples include process oils, anti-aging agents, fillers, and the like.
- Large particle size carbon black is carbon black having an iodine adsorption of 40 mg / g or less.
- Examples of such large particle size carbon black include carbon black GPF (iodine adsorption amount: 26 mg / g), carbon black SRF-HS (iodine adsorption amount: 30 mg / g), carbon black SRF-HS (iodine adsorption amount: 24 mg).
- GPF iodine adsorption amount: 26 mg / g
- carbon black SRF-HS iodine adsorption amount: 30 mg / g
- carbon black SRF-HS iodine adsorption amount: 24 mg).
- G carbon black SRF (iodine adsorption amount: 26 mg / g)
- carbon black SRF-LS iodine adsorption amount: 21 mg / g
- FT grade carbon black iodine adsorption amount: 18 mg / g
- the compounding amount of the large particle size carbon black is preferably 10 to 80 parts by mass, and more preferably 40 to 60 parts by mass with respect to 100 parts by mass of the raw rubber.
- the large particle size carbon black may be composed of a single species or a plurality of species.
- the rubber composition of the compressed rubber layer 12 may contain carbon black other than the large particle size carbon black.
- Examples of the aramid short fibers 14 include para-aramid short fibers and meta-aramid short fibers.
- the blending amount of the aramid short fibers 14 is 3 to 10 parts by mass, preferably 4 to 7 parts by mass, and more preferably 5 to 6 parts by mass with respect to 100 parts by mass of the raw rubber.
- the aramid short fibers 14 have, for example, a fiber length of 1 to 3 mm and a fiber diameter of 8 to 20 ⁇ m.
- the aramid short fibers 14 are obtained by, for example, cutting long fibers that have been subjected to an adhesive treatment to be heated after being immersed in resorcin / formalin / latex aqueous solution (hereinafter referred to as “RFL aqueous solution”) into a predetermined length along the length direction. Manufactured.
- the aramid short fibers 14 are provided, for example, so as to be oriented in the belt width direction. A part of the aramid short fibers 14 may be exposed on the surface of the pulley contact portion, that is, the surface of the V rib 13, and the aramid short fibers 14 exposed on the surface of the V rib 13 may protrude from the surface of the V rib 13. Good.
- the rubber composition of the compressed rubber layer 12 may contain short fibers other than the aramid short fibers 14.
- the crosslinking agent examples include sulfur and organic peroxides. Among these, it is preferable to use an organic peroxide as a crosslinking agent from the viewpoint of heat resistance and oil resistance.
- the organic peroxide examples include dicumyl peroxide, 1,3-bis (t-butylperoxyisopropyl) benzene, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, and the like.
- the compounding amount of the organic peroxide is, for example, 2 to 15 parts by mass with respect to 100 parts by mass of the raw rubber.
- crosslinking accelerators examples include thiazole accelerators and thiuram accelerators.
- the crosslinking accelerator may be composed of a single species or a plurality of species.
- crosslinking accelerating aid examples include zinc oxide, magnesium oxide, stearic acid and the like.
- the crosslinking accelerator aid may be composed of a single species or a plurality of species.
- plasticizer examples include dialkyl phthalate, dialkyl adipate, dialkyl sebacate and the like.
- the plasticizer may be composed of a single species or a plurality of species.
- Process oil includes paraffinic oil, naphthenic oil, aromatic oil and the like.
- the process oil may be composed of a single species or a plurality of species.
- anti-aging agent examples include amine-based anti-aging agents and phenol-based anti-aging agents.
- the anti-aging agent may be composed of a single species or a plurality of species.
- the filler examples include calcium carbonate, clay, talc, and diatomaceous earth.
- the filler may be composed of a single species or a plurality of species.
- the adhesive rubber layer 11 and the compressed rubber layer 12 may be formed of different rubber compositions or may be formed of the same rubber composition.
- the core wire 16 is composed of a twisted yarn 16 ′ such as polyester (PET) fiber, polyethylene naphthalate (PEN) fiber, aramid fiber, vinylon fiber or the like.
- a twisted yarn 16 ′ such as polyester (PET) fiber, polyethylene naphthalate (PEN) fiber, aramid fiber, vinylon fiber or the like.
- the reinforcing cloth 17 is composed of, for example, a woven cloth 17 'in which yarns such as cotton, polyamide fiber, polyester fiber, and aramid fiber are woven into plain weave, twill weave, satin weave, or the like.
- an adhesive treatment in which it is immersed in an RFL aqueous solution and heated before molding and / or a surface of the V-ribbed belt main body 10 is coated with rubber paste. Adhesive treatment for drying is applied.
- the reinforcing cloth 17 may be formed of a knitted fabric.
- the belt outer peripheral side surface portion may be formed of a rubber composition instead of the reinforcing cloth 17.
- the back rubber layer is formed in a band shape having a horizontally long cross section, and is formed to have a thickness of 0.3 to 1.0 mm, for example.
- the back rubber layer is formed of a rubber composition in which various compounding agents are blended with raw material rubber. Examples of the raw rubber of the rubber composition constituting the back rubber layer include ethylene- ⁇ -olefin elastomers such as ethylene / propylene rubber (EPR) and ethylene propylene diene monomer rubber (EPDM), chloroprene rubber (CR), and chlorosulfone.
- EPR ethylene / propylene rubber
- EPDM ethylene propylene diene monomer rubber
- CR chloroprene rubber
- chlorosulfone chlorosulfone
- ethylene- ⁇ -olefin elastomers are preferred from the viewpoints of environmental considerations and performance such as wear resistance and crack resistance.
- the compounding agent include a crosslinking agent, a crosslinking accelerator, a crosslinking acceleration assistant, a plasticizer, a process oil, an antiaging agent, a reinforcing material such as carbon black and short fibers, and a filler.
- the rubber composition for forming the back rubber layer is obtained by heating and pressurizing an uncrosslinked rubber composition obtained by mixing a raw material rubber with a compounding agent and kneading the mixture with a crosslinking agent.
- an inner mold having a molding surface for forming the back surface of the belt in a predetermined shape on the outer periphery and a rubber sleeve having a molding surface for forming the inner side of the belt in a predetermined shape on the inner periphery are used.
- a twisted yarn 16 'serving as a core wire 16 is spirally wound thereon, and then an uncrosslinked rubber sheet 11a' for forming the inner portion 11a of the adhesive rubber layer 11 is wound thereon, and further On top of this, an uncrosslinked rubber sheet 12 ′ for forming the compressed rubber layer 12 is wound.
- the compressed rubber layer 12 is formed of an uncrosslinked rubber sheet 12 ′ in which aramid short fibers 14 oriented in a direction perpendicular to the winding direction are blended.
- This uncrosslinked rubber sheet 12 ' is blended with carbon black having a large particle diameter with an iodine adsorption amount of 40 mg / g or less and 3 to 10 parts by mass of aramid short fibers 14 with respect to 100 parts by mass of the raw rubber.
- the outer periphery of each is polished and cut to form the V rib 13, that is, the pulley contact portion.
- the aramid short fibers 14 exposed on the pulley contact surface may protrude from the pulley contact surface, that is, the V rib 13 surface.
- the belt slab which is divided and formed with the V ribs 13 on the outer periphery, is cut into a predetermined width and turned upside down to obtain the V ribbed belt B.
- FIG. 3 shows the pulley layout of the accessory drive belt transmission 30.
- This accessory drive belt transmission device 30 is a serpentine drive system, and a V-ribbed belt B is wound around six pulleys of four rib pulleys and two flat pulleys.
- the auxiliary drive belt transmission device 30 has a layout of a power steering pulley 31 at the uppermost position, an alternator pulley 32 disposed below the power steering pulley 31, and a flat pulley tensioner disposed at the lower left of the power steering pulley 31.
- an air conditioner pulley 36 is Among these, all except the tensioner pulley 33 and the water pump pulley 34 which are flat pulleys.
- the V-ribbed belt B is wound around the power steering pulley 31 so that the V-rib 13 side contacts, and then wound around the tensioner pulley 33 so that the back surface of the belt contacts, and then the V-rib 13 side contacts.
- the crankshaft pulley 35 and the air conditioner pulley 36 are wound around the water pump pulley 34 so that the back surface of the belt contacts, and then wound around the alternator pulley 32 so that the V-rib 13 side contacts. Finally, it is provided so as to return to the power steering pulley 31.
- the pulley diameters of the four rib pulleys are, for example, 80-120 mm for the power steering pulley 31, 50-70 mm for the smallest alternator pulley 32, 150-170 mm for the largest crankshaft pulley 35, and 120-170 mm for the air conditioner pulley 36. 140 mm.
- the pulley diameter in the case of a rib pulley is an outer diameter including the rib tip.
- the pulley diameters of the two flat pulleys are 70 to 100 mm for the tensioner pulley 33 and 140 to 160 mm for the water pump pulley 34.
- the V-rib 13 which is a pulley contact portion uses ethylene- ⁇ -olefin elastomer as a raw rubber, carbon black having an iodine adsorption amount of 40 mg / g or less, and 100 parts by mass of the raw rubber. Is formed of a rubber composition in which 3 to 10 parts by mass of the aramid short fibers 14 are blended. Therefore, in the accessory drive belt transmission device 30, for example, a small-diameter alternator pulley having a pulley diameter of 50 to 70 mm. Even if it is wound around and used, it is possible to suppress the generation of abnormal noise when wet.
- the V-ribbed belt B has been described.
- the present invention is not limited to this, and a friction transmission belt such as a V-belt, a double V-ribbed belt, a flat belt, or a cogged belt may be used.
- Test evaluation belt The following rubber compositions 1 to 12 were prepared, and V-ribbed belts of Examples 1 to 5 and Comparative Examples 1 to 5 were produced using them. Each configuration is also shown in Tables 1 and 2.
- EPDM manufactured by Sumitomo Rubber Co., Ltd., trade name: Esprene 301
- carbon black GPF manufactured by Mitsubishi Chemical Co., Ltd., trade name: Diamond G, iodine adsorption amount 24 mg / g
- the rubber composition 2 was prepared by preparing an uncrosslinked rubber composition identical to the rubber composition 2 except that the blend amount of the aramid short fibers was 10 parts by mass and processing it into a sheet shape.
- ⁇ Rubber composition 3> An uncrosslinked rubber composition identical to that of the rubber composition 1 is prepared except that the blending amount of the carbon black GPF is 80 parts by mass and the blending amount of the carbon black FEF is 10 parts by mass, and processed into a sheet. Composition 3 was obtained.
- ⁇ Rubber composition 4> An uncrosslinked rubber composition identical to the rubber composition 1 was prepared except that the blending amount of the aramid short fibers was 3 parts by mass and processed into a sheet shape to obtain a rubber composition 4.
- a rubber composition 5 was prepared by preparing an uncrosslinked rubber composition identical to the rubber composition 1 except that the blending amount of the carbon black GPF was 10 parts by mass and processing it into a sheet.
- a rubber composition 6 was prepared by preparing an uncrosslinked rubber composition identical to the rubber composition 1 except that the carbon black GPF was not blended and the blending amount of the carbon black FEF was 60 parts by mass. It was.
- a rubber composition 7 was prepared by preparing an uncrosslinked rubber composition identical to the rubber composition 1 except that 10 parts by mass of cotton short fibers were blended in place of the aramid short fibers and processed into a sheet shape.
- ⁇ Rubber composition 8> An uncrosslinked rubber composition identical to the rubber composition 1 was prepared except that 10 parts by mass of polyamide short fibers (trade name: Leona 66, fiber length 1 mm) were blended in place of the aramid short fibers. The rubber composition 8 was processed into a sheet shape.
- a rubber composition 9 was prepared by preparing an uncrosslinked rubber composition identical to the rubber composition 1 except that the blending amount of the aramid short fibers was 15 parts by mass and processing it into a sheet shape.
- a rubber composition 10 was prepared by preparing an uncrosslinked rubber composition identical to the rubber composition 1 except that the amount of carbon black GPF was 100 parts by mass and processing it into a sheet.
- ⁇ Rubber composition 11> Using EPDM as a raw rubber, with respect to 100 parts by weight of this raw rubber, 60 parts by weight of carbon black FEF, 5 parts by weight of zinc oxide, 0.5 parts by weight of anti-aging agent (1), 2 parts by weight of anti-aging agent (2), By blending 12 parts by weight of paraffinic process oil, 2.5 parts by weight of a co-crosslinking agent, 10 parts by weight of dicumyl peroxide, and 4 parts by weight of short cotton fibers, and kneading for about 5 minutes in a closed kneader. An uncrosslinked rubber composition was obtained. The uncrosslinked rubber composition was processed into a sheet shape. This uncrosslinked rubber composition was designated as rubber composition 11.
- ⁇ Rubber composition 12> Using EPDM as a raw rubber, with respect to 100 parts by weight of this raw rubber, 60 parts by weight of carbon black FEF, 5 parts by weight of zinc oxide, 0.5 parts by weight of anti-aging agent (1), 2 parts by weight of anti-aging agent (2), By blending 10 parts by weight of paraffinic process oil, 1 part by weight of a co-crosslinking agent, 4 parts by weight of dicumyl peroxide, and 13 parts by weight of polyamide short fibers, the mixture is kneaded for about 5 minutes in a closed kneader. A crosslinked rubber composition was obtained. The uncrosslinked rubber composition was processed into a sheet shape. This uncrosslinked rubber composition was designated as rubber composition 12.
- Example 1 The rubber composition 1 is used as an uncrosslinked rubber sheet for forming a compressed rubber layer, and the rubber composition 11 and the rubber composition 12 prepared above are used as uncrosslinked rubber sheets for forming an adhesive rubber layer and a back rubber layer, respectively.
- Two V-ribbed belts were manufactured as Example 1. A polyester core wire was used as the core wire. This V-ribbed belt had a belt width of 21.36 mm, a belt thickness of 4.3 mm, a belt length of 1200 mm, a number of ribs of 6, a rib height of 2.0 mm, and a rib pitch of 3.56 mm.
- Example 2 Two V-ribbed belts having the same configuration as in Example 1 except that the rubber composition 2 was used as an uncrosslinked rubber sheet for forming a compressed rubber layer were prepared as Example 2.
- Example 3 Two V-ribbed belts having the same configuration as in Example 1 except that the rubber composition 3 was used as an uncrosslinked rubber sheet for forming a compressed rubber layer were prepared as Example 3.
- Example 4 Two V-ribbed belts having the same configuration as in Example 1 except that the rubber composition 4 was used as an uncrosslinked rubber sheet for forming a compressed rubber layer were prepared as Example 4.
- Example 5 Two V-ribbed belts having the same configuration as in Example 1 except that the rubber composition 5 was used as an uncrosslinked rubber sheet for forming a compressed rubber layer were prepared as Example 5.
- FIG. 4 shows a pulley layout of the belt test traveling machine 40 used in the water injection abnormal noise test evaluation 1.
- the belt running test machine 40 includes a first driven rib pulley 41 (pulley diameter 60 mm) having a small diameter provided at the uppermost position, a second driven rib pulley 42 (pulley diameter 75 mm) disposed substantially below, and a first driven pulley. 41, a large-diameter drive rib pulley 43 (pulley diameter 140 mm) disposed on the left side of the second driven pulley 42, and a first intermediate disposed between the first driven rib pulley 41 and the drive rib pulley 43.
- a small second idler pulley 45 (pulley diameter 55 mm) disposed between the idler pulley 44 (pulley diameter 75 mm), the first driven rib pulley 41 and the second driven pulley 42 and to the right of the first idler pulley 44. ).
- the first idler pulley 44 has a belt winding angle of 90 degrees on the belt outer side
- the second idler pulley 45 has a belt winding angle of 60 degrees on the belt outer side
- the second driven rib pulley 42 Between the drive rib pulleys 43, the V-ribbed belt B is positioned so as to be horizontal.
- the 1st driven rib pulley 41 is an alternator pulley (ALT pulley) for motor vehicles.
- a microphone was installed on the right side of the first driven rib pulley 41 at a position 50 mm away from the first driven rib pulley 41, and this microphone was connected to the detector.
- FIG. 5 shows a pulley layout of the belt test traveling machine 50 used in the water injection abnormal noise test evaluation 2.
- the belt running test machine 50 includes a first driven rib pulley 51 having a small diameter (pulley diameter 50 mm) provided at the uppermost position, a second driven rib pulley 52 (pulley diameter 75 mm) disposed substantially below, and a first driven pulley.
- a large-diameter drive rib pulley 53 (pulley diameter: 140 mm) disposed on the left side of the second driven pulley 52 at the lower left side of 51, and an idler pulley disposed between the first driven rib pulley 51 and the drive rib pulley 53 54 (pulley diameter 75 mm).
- the idler pulley 54 is positioned so that the belt winding angle is 115 degrees on the outer side of the belt and between the second driven rib pulley 52 and the drive rib pulley 53 so that the V-ribbed belt B is horizontal.
- the first driven rib pulley 51 is an alternator pulley (ALT pulley) for an automobile.
- a microphone was installed on the right side of the first driven rib pulley 51 at a position 50 mm away from the first driven rib pulley 51, and this microphone was connected to the detector.
- the driven rib pulley 52 was wound in this order. Then, 5 kgf per rib, that is, 30 kgf of tension is applied to the entire belt, and a large current (60 A) is applied to the first driven rib pulley 51, and the driving rib pulley 53 is placed under an ambient temperature of 25 ° C. It was rotated clockwise at a rotation speed of 800 rpm.
- FIG. 6 shows a pulley layout of the belt test traveling machine 60 used in the heat resistant belt traveling test.
- the belt running test machine 60 includes a large-diameter driven rib pulley 61 (pulley diameter 120 mm) and a drive rib pulley 62 (pulley diameter 120 mm) arranged vertically and an idler pulley arranged slightly to the right in the middle in the vertical direction. 63 (pulley diameter 70 mm) and a small-diameter driven rib pulley 64 (pulley diameter 55 mm) arranged on the right side of the idler pulley 63.
- the idler pulley 63 is positioned so that the belt winding angle is 90 degrees on the belt outer side, and the small-diameter rib pulley 64 is positioned on the belt inner side so that the belt winding angle is 90 degrees.
- the belt running test machine 40 and the belt running test machine 50 were removed and this time they were wound around three rib pulleys 61, 62, 64 and idler pulley 63. Then, the small-diameter rib pulley 64 was pulled to the side so that a set weight of 85 kgf was added, and the lower rib pulley 62, which is a drive rib pulley, was rotated clockwise at a rotational speed of 4900 rpm at an ambient temperature of 120 ° C. And the time until the crack produced on the rib surface of the V-ribbed belt reached the core wire was measured, and the time was defined as the heat-resistant belt running time.
- Table 3 shows the test evaluation results.
- Example 1 in which carbon rubber having an iodine adsorption amount of 40 mg / g or less was blended with the rubber composition of the compressed rubber layer, and Comparative Example 1 in which carbon black having an iodine adsorption amount of greater than 40 mg / g was blended.
- the former is superior in terms of the effect of suppressing abnormal noise when exposed to water, and the effect is particularly remarkable when used by being wound around a pulley having a pulley diameter of 50 mm.
- the present invention is useful for a friction transmission belt and a belt transmission device using the friction transmission belt.
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Abstract
Description
Vリブドベルトについて行った試験評価について説明する。
以下のゴム組成物1~12を準備し、これらを用いて実施例1~5及び比較例1~5のVリブドベルトを作製した。それぞれの構成は表1及び2にも示す。
EPDM(住友ゴム社製、商品名:エスプレン301)を原料ゴムとして、この原料ゴム100質量部に対して、カーボンブラックGPF(三菱化学社製、商品名:ダイヤG、ヨウ素吸着量24mg/g)60質量部、カーボンブラックFEF(東海カーボン社製、商品名:シーストSO、ヨウ素吸着量44mg/g)10質量部、酸化亜鉛(堺化学社製、商品名:酸化亜鉛3種)5質量部、老化防止剤(1)(大内新興化学工業社製、商品名:ノクラック224)0.5質量部、老化防止剤(2)(大内新興化学工業社製、商品名:ノクラックMB)2質量部、パラフィン系プロセスオイル(日本サン石油社製、商品名:サンパー2280)10質量部、共架橋剤(精工化学株式会社製、商品名:ハイクロスM)1質量部、ジクミルパーオキサイド(日本油脂社製、商品名:パークミルD)4.5質量部、及び、アラミド短繊維(帝人社製、商品名:コーネックス、繊維長3mm)5質量部を配合し、密閉式混練機で約5分間混練りすることにより、未架橋ゴム組成物を得た。そして、この未架橋ゴム組成物をシート状に加工した。この未架橋ゴム組成物をゴム組成物1とした。
アラミド短繊維の配合量を10質量部としたことを除いてゴム組成物2と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物2とした。
カーボンブラックGPFの配合量を80質量部及びカーボンブラックFEFの配合量を10質量部としたことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物3とした。
アラミド短繊維の配合量を3質量部としたことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物4とした。
カーボンブラックGPFの配合量を10質量部としたことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物5とした。
カーボンブラックGPFを配合せず、カーボンブラックFEFの配合量を60質量部としたことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物6とした。
アラミド短繊維の代わりに綿短繊維10質量部を配合したことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物7とした。
アラミド短繊維の代わりにポリアミド短繊維(旭化成社製、商品名:レオナ66、繊維長1mm)10質量部を配合したことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物8とした。
アラミド短繊維の配合量を15質量部としたことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物9とした。
カーボンブラックGPFの配合量を100質量部としたことを除いてゴム組成物1と同一の未架橋ゴム組成物を調製してシート状に加工し、ゴム組成物10とした。
EPDMを原料ゴムとして、この原料ゴム100質量部に対して、カーボンブラックFEF60質量部、酸化亜鉛5質量部、老化防止剤(1)0.5質量部、老化防止剤(2)2質量部、パラフィン系プロセスオイル12質量部、共架橋剤2.5質量部、ジクミルパーオキサイド10質量部、及び、綿短繊維4質量部を配合し、密閉式混練機で約5分間混練りすることにより、未架橋ゴム組成物を得た。そして、この未架橋ゴム組成物をシート状に加工した。この未架橋ゴム組成物をゴム組成物11とした。
EPDMを原料ゴムとして、この原料ゴム100質量部に対して、カーボンブラックFEF60質量部、酸化亜鉛5質量部、老化防止剤(1)0.5質量部、老化防止剤(2)2質量部、パラフィン系プロセスオイル10質量部、共架橋剤1質量部、ジクミルパーオキサイド4質量部、及び、ポリアミド短繊維13質量部を配合し、密閉式混練機で約5分間混練りすることにより、未架橋ゴム組成物を得た。そして、この未架橋ゴム組成物をシート状に加工した。この未架橋ゴム組成物をゴム組成物12とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物1を用い、また、接着ゴム層及び背面ゴム層を形成する未架橋ゴムシートとして上記調製したゴム組成物11及びゴム組成物12を各々用いてVリブドベルトを2本作製し、実施例1とした。心線としては、ポリエステル心線を用いた。このVリブドベルトは、ベルト幅21.36mm、ベルト厚さ4.3mm、ベルト長さ1200mm、リブ数6、リブ高さ2.0mm、及びリブピッチ3.56mmであった。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物2を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、実施例2とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物3を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、実施例3とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物4を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、実施例4とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物5を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、実施例5とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物6を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、比較例1とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物7を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、比較例2とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物8を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、比較例3とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物9を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、比較例4とした。
圧縮ゴム層を形成する未架橋ゴムシートとしてゴム組成物10を用いたことを除いて実施例1と同一構成のVリブドベルトを2本作製し、比較例5とした。
<注水異音試験評価1>
図4は、注水異音試験評価1で用いたベルト試験走行機40のプーリレイアウトを示す。
図5は、注水異音試験評価2で用いたベルト試験走行機50のプーリレイアウトを示す。
図6は、耐熱ベルト走行試験で用いたベルト試験走行機60のプーリレイアウトを示す。
表3は、試験評価結果を示す。
13 Vリブ(プーリ接触部分)
14 アラミド短繊維
Claims (4)
- エチレン-α-オレフィンエラストマーを原料ゴムとし、これにヨウ素吸着量40mg/g以下のカーボンブラックと原料ゴム100質量部に対して3~10質量部のアラミド短繊維とが配合されたゴム組成物でプーリ接触部分が形成されていることを特徴とする摩擦伝動ベルト。
- 請求項1に記載された摩擦伝動ベルトにおいて、
上記ヨウ素吸着量40mg/g以下のカーボンブラックは原料ゴム100質量部に対して10~80質量部配合されていることを特徴とする摩擦伝動ベルト。 - 請求項1又は2に記載された摩擦伝動ベルトにおいて、
上記エチレン-α-オレフィンエラストマー組成物は、該エチレン-α-オレフィンエラストマー組成物に配合された有機過酸化物により架橋されていることを特徴とする摩擦伝動ベルト。 - エチレン-α-オレフィンエラストマーを原料ゴムとし、これにヨウ素吸着量40mg/g以下のカーボンブラックと原料ゴム100質量部に対して3~10質量部のアラミド短繊維とが配合されたゴム組成物でプーリ接触部分が形成された摩擦伝動ベルトが、プーリ径70mm以下のプーリを含む複数のプーリに巻き掛けられたことを特徴とするベルト伝動装置。
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US12/997,249 US8845468B2 (en) | 2008-06-12 | 2009-06-04 | Friction drive belt and belt transmission system using the same |
JP2010516741A JPWO2009150803A1 (ja) | 2008-06-12 | 2009-06-04 | 摩擦伝動ベルト及びそれを用いたベルト伝動装置 |
DE112009001280T DE112009001280T5 (de) | 2008-06-12 | 2009-06-04 | Reibantriebsriemen und Riementransmissionssystem, das diesen verwendet |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013136657A (ja) * | 2011-12-28 | 2013-07-11 | Swcc Showa Cable Systems Co Ltd | ゴム組成物および免震・防振装置 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5886215B2 (ja) * | 2012-01-31 | 2016-03-16 | 三ツ星ベルト株式会社 | Vリブドベルト |
ITVR20120245A1 (it) * | 2012-12-19 | 2014-06-20 | Tumedei S P A | Composition for a disc-type flexible coupling and coupling including such composition. - composizione per un giunto flessibile del tipo a disco e giunto includente tale composizione. |
JP6055430B2 (ja) * | 2013-03-29 | 2016-12-27 | 三ツ星ベルト株式会社 | 伝動用ベルト |
DE112015002411T5 (de) * | 2014-05-22 | 2017-02-02 | Bando Chemical Industries, Ltd. | Krafttransmissionsriemen |
US10612492B2 (en) | 2017-03-16 | 2020-04-07 | Northrop Grumman Innovation Systems, Inc. | Precursor compositions for an insulation, insulated rocket motors, and related methods |
JP6748152B2 (ja) * | 2017-07-04 | 2020-08-26 | 三ツ星ベルト株式会社 | Vリブドベルト |
US20190120174A1 (en) * | 2017-10-25 | 2019-04-25 | Northrop Grumman Innovation Systems, Inc. | Precursor compositions for an insulation, insulated rocket motors, and related methods |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001165244A (ja) * | 1999-09-30 | 2001-06-19 | Mitsuboshi Belting Ltd | Vリブドベルト |
JP2005188689A (ja) * | 2003-12-26 | 2005-07-14 | Mitsuboshi Belting Ltd | Vリブドベルト |
JP2006316812A (ja) * | 2005-05-10 | 2006-11-24 | Bando Chem Ind Ltd | 伝動ベルト |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10064947A1 (de) * | 1999-12-15 | 2001-07-19 | Mitsuboshi Belting Ltd | Verfahren zum Verbinden einer Ethylen-alpha-Olefin-Kautschukmischung mit einer Faser sowie ein Antriebsriemen, der mittels dieses Verfahrens hergestellt wird |
US20030032514A1 (en) * | 2001-07-30 | 2003-02-13 | Edwards Charles O. | Power transmission belt |
DE10236112B4 (de) * | 2001-08-13 | 2017-01-26 | Bando Chemical Industries, Ltd. | Kraftübertragungsriemen und Verfahren zu dessen Herstellung |
JP2003202055A (ja) | 2002-01-08 | 2003-07-18 | Bando Chem Ind Ltd | Vリブドベルト |
CA2423498C (en) * | 2002-03-28 | 2006-08-01 | Mitsuboshi Belting Ltd. | Power transmission belt |
US6808580B2 (en) * | 2002-08-22 | 2004-10-26 | The Goodyear Tire & Rubber Company | Method for splicing a conveyor belt |
JP2004125012A (ja) | 2002-09-30 | 2004-04-22 | Mitsuboshi Belting Ltd | 動力伝動ベルト |
JP4772292B2 (ja) * | 2003-05-30 | 2011-09-14 | 三ツ星ベルト株式会社 | 伝動ベルト |
JP2007198468A (ja) | 2006-01-25 | 2007-08-09 | Mitsuboshi Belting Ltd | 摩擦伝動ベルト |
JP5291901B2 (ja) * | 2007-07-27 | 2013-09-18 | バンドー化学株式会社 | 摩擦伝動ベルト及びそれを用いた自動車の補機駆動ベルト伝動装置 |
US8809441B2 (en) * | 2009-08-03 | 2014-08-19 | The Gates Corporation | Method of reinforcing rubber and rubber composition |
-
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001165244A (ja) * | 1999-09-30 | 2001-06-19 | Mitsuboshi Belting Ltd | Vリブドベルト |
JP2005188689A (ja) * | 2003-12-26 | 2005-07-14 | Mitsuboshi Belting Ltd | Vリブドベルト |
JP2006316812A (ja) * | 2005-05-10 | 2006-11-24 | Bando Chem Ind Ltd | 伝動ベルト |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013136657A (ja) * | 2011-12-28 | 2013-07-11 | Swcc Showa Cable Systems Co Ltd | ゴム組成物および免震・防振装置 |
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JPWO2009150803A1 (ja) | 2011-11-10 |
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