WO2011074182A1 - 摩擦伝動ベルト - Google Patents
摩擦伝動ベルト Download PDFInfo
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- WO2011074182A1 WO2011074182A1 PCT/JP2010/006772 JP2010006772W WO2011074182A1 WO 2011074182 A1 WO2011074182 A1 WO 2011074182A1 JP 2010006772 W JP2010006772 W JP 2010006772W WO 2011074182 A1 WO2011074182 A1 WO 2011074182A1
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- WIPO (PCT)
- Prior art keywords
- rubber
- rubber layer
- transmission belt
- friction transmission
- belt
- Prior art date
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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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- 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
- F16G1/00—Driving-belts
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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
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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
Definitions
- the present invention relates to a friction transmission belt.
- a V-ribbed belt in which a large number of concave holes are formed on the pulley contact surface is known.
- Patent Document 1 discloses a V-ribbed belt in which at least a part including a pulley contact surface is formed of a porous rubber composition having a cell ratio of 5 to 20%.
- Patent Document 2 in a V-ribbed belt having a double layer of an outer adhesive rubber layer and an inner compressed rubber layer, hollow particles are blended in the rubber composition forming the compressed rubber layer, and pulley contact among the hollow particles. What is exposed on the surface is disclosed in which a part is cut off to form a number of cellular concave holes.
- the present invention is a friction transmission belt provided with a compression rubber layer that transmits power by contacting a pulley on the inner peripheral side of the belt body,
- the compressed rubber layer has a surface rubber layer in which a number of concave holes are formed on the pulley contact surface, and a storage longitudinal elastic modulus in the belt length direction at 25 ° C. provided on the inner side of the belt relative to the surface rubber layer.
- An internal rubber layer that is higher than the rubber layer and 30 to 50 MPa.
- V-ribbed belt It is a perspective view of the V-ribbed belt which concerns on embodiment. It is a principal part expanded sectional view at the time of using the (a) hollow particle of the V ribbed belt which concerns on embodiment, and the (b) foaming agent. It is a longitudinal cross-sectional view of a belt shaping
- FIG. 1 shows a V-ribbed belt B (friction transmission belt) according to this embodiment.
- the V-ribbed belt B according to the present embodiment is used for, for example, an auxiliary machine drive belt transmission device provided in an engine room of an automobile.
- the V-ribbed belt B according to the present embodiment has, for example, 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 V-ribbed belt B includes a V-ribbed belt main body 10 configured as a triple layer of a compression rubber layer 11 on the belt inner peripheral side, an intermediate adhesive rubber layer 12 and a back rubber layer 13 on the belt outer peripheral side.
- a core wire 14 is embedded in the adhesive rubber layer 12 of the V-ribbed belt body 10 so as to form a spiral having a pitch in the belt width direction.
- the compression rubber layer 11 is provided so that a plurality of V ribs 15 hang down to the inner peripheral side of the belt.
- the plurality of V ribs 15 are each formed in a ridge having a substantially inverted triangular cross section extending in the belt length direction, and arranged in parallel in the belt width direction.
- Each V-rib 15 has, for example, a rib height of 2.0 to 3.0 mm and a width between rib 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 compression rubber layer 11 has a surface rubber layer 11a formed in a layer shape along the entire pulley contact surface and an internal rubber layer 11b provided on the inner side of the belt with respect to the surface rubber layer 11a.
- the thickness of the surface rubber layer 11a is, for example, 50 to 500 ⁇ m.
- Each of the surface rubber layer 11a and the inner rubber layer 11b of the compressed rubber layer 11 is a rubber obtained by crosslinking an uncrosslinked rubber composition obtained by blending various compounding ingredients with a raw rubber and heating and pressurizing the crosslinked rubber composition. It is formed with a composition.
- the raw rubber of the rubber composition forming each of the surface rubber layer 11a and the inner rubber layer 11b of the compressed rubber layer 11 is, for example, ethylene / propylene copolymer (EPR), ethylene / propylene / diene terpolymer (EPDM), ethylene / propylene Examples include ethylene- ⁇ -olefin elastomers such as octene copolymer and ethylene / butene copolymer; chloroprene rubber (CR); chlorosulfonated polyethylene rubber (CSM); hydrogenated acrylonitrile rubber (H-NBR). Of these, the raw rubber is preferably an ethylene- ⁇ -olefin elastomer.
- the raw rubber may be composed of a single species, or may be composed of a blend of a plurality of species.
- the raw rubber of the rubber composition forming the surface rubber layer 11a and the raw rubber of the rubber composition forming the internal rubber layer 11b may be the same or different.
- the compounding agent examples include a reinforcing material such as carbon black, a softening agent, a processing aid, a vulcanization aid, a crosslinking agent, a vulcanization accelerator, a rubber compounding resin, an anti-aging agent, and the like.
- a reinforcing material for example, carbon black, channel black; furnace black such as SAF, ISAF, N-339, HAF, N-351, MAF, FEF, SRF, GPF, ECF, N-234; FT, MT, etc. Thermal black; acetylene black and the like.
- Silica is also mentioned as the reinforcing material.
- the reinforcing material may be composed of a single species or a plurality of species.
- the reinforcing material preferably has a blending amount of 30 to 80 parts by mass with respect to 100 parts by mass of the raw rubber from the viewpoint of achieving a good balance between wear resistance and bending fatigue resistance.
- the softener examples include petroleum-based softeners; mineral oil-based softeners such as paraffin wax; castor oil, cottonseed oil, sesame oil, rapeseed oil, soybean oil, palm oil, palm oil, fallen raw oil, waxy wax, rosin And vegetable oil-based softeners such as pine oil.
- the softener may be composed of a single species or a plurality of species.
- the amount of the softener is, for example, 2 to 30 parts by mass with respect to 100 parts by mass of the raw rubber.
- processing aids include stearic acid.
- the processing aid may be composed of a single species or a plurality of species.
- the amount of the processing aid is, for example, 0.5 to 5 parts by mass with respect to 100 parts by mass of the raw rubber.
- the vulcanization aid examples include metal oxides such as magnesium oxide and zinc oxide (zinc white).
- the vulcanization aid may be composed of a single species or a plurality of species.
- the amount of the vulcanization aid is, for example, 1 to 10 parts by mass with respect to 100 parts by mass of the raw rubber.
- crosslinking agent examples include sulfur and organic peroxides.
- sulfur may be used alone, an organic peroxide may be used alone, or both of them may be used in combination.
- the amount of the crosslinking agent is 100 to 100 parts by mass of the raw rubber, for example, 0.5 to 4.0 parts by mass. ⁇ 8 parts by mass.
- Examples of the vulcanization accelerator include metal oxides, metal carbonates, fatty acids and derivatives thereof.
- the vulcanization accelerator may be composed of a single species or a plurality of species.
- the amount of the vulcanization accelerator is, for example, 0.5 to 8 parts by mass with respect to 100 parts by mass of the raw rubber.
- the rubber compounding resin examples include phenol resin.
- the rubber compounding resin may be composed of a single species or a plurality of species.
- the compounding amount of the rubber compounding resin is, for example, 0 to 20 parts by mass with respect to 100 parts by mass of the raw rubber.
- Antiaging agents include amine-based, quinoline-based, hydroquinone derivatives, phenol-based and phosphite-based agents.
- the anti-aging agent may be composed of a single species or a plurality of species.
- the anti-aging agent is, for example, 0 to 8 parts by mass with respect to 100 parts by mass of the raw rubber.
- a large number of concave holes 16 are formed on the pulley contact surface of the surface rubber layer 11a, that is, on the surface of the V rib 15.
- the average hole diameter of the concave holes 16 is preferably 40 to 150 ⁇ m, and more preferably 80 to 120 ⁇ m.
- the average hole diameter of the concave holes 16 is determined by the number average of 50 to 100 measured by the surface image.
- a large number of hollow holes 17 formed in the rubber composition forming the surface rubber layer 11a are excised from the numerous concave holes 16 formed on the pulley contact surface of the surface rubber layer 11a. You may be comprised by what was made.
- the hollow particles 17 include EXPANCEL 092-120 (particle size 28 to 38 ⁇ m), 009-80 (particle size 18 to 24 ⁇ m) manufactured by Nippon Philite Co., Ltd., ADVANCEL (advanta) manufactured by Sekisui Chemical Co., Ltd.
- the particle size of the hollow particles 17 is preferably 10 to 45 ⁇ m, more preferably 18 to 40 ⁇ m.
- the hollow particles 17 are preferably blended in an amount of 0.5 to 10 parts by mass, more preferably 1 to 5 parts by mass with respect to 100 parts by mass of the raw rubber.
- the numerous concave holes 16 formed on the pulley contact surface of the surface rubber layer 11a are formed by a foaming agent blended in the rubber composition forming the surface rubber layer 11a.
- a part of the hollow portion may be cut off.
- the foaming agent include Cellmic CAP-500 manufactured by Sankyo Kasei Co., Ltd.
- the foaming agent is preferably blended in an amount of 1 to 15 parts by mass, more preferably 3 to 8 parts by mass with respect to 100 parts by mass of the raw rubber.
- Short fibers may be blended in the rubber composition forming the surface rubber layer 11a.
- the short fibers are preferably provided so as to be oriented in the belt width direction. Moreover, it is preferable that what was exposed to the pulley contact surface among the short fibers protrudes from the surface.
- Examples of such short fibers include nylon fibers, aramid fibers, polyester fibers, and cotton.
- the short fiber may be subjected to an adhesion treatment to be heated after being immersed in a resorcin / formalin / latex aqueous solution (RFL aqueous solution) or the like.
- the length of the short fiber is, for example, 0.2 to 3.0 mm.
- the short fiber has a content of, for example, 3 to 30 parts by mass with respect to 100 parts by mass of the raw rubber. Short fibers may not be blended in the rubber composition forming the surface rubber layer 11a.
- the surface rubber layer 11a preferably has a storage longitudinal elastic modulus (E ′) in the belt length direction at 25 ° C. of 20 to 45 MPa, more preferably 35 to 40 MPa.
- the storage longitudinal elastic modulus (E ′) at 25 ° C. is measured based on JIS K6394.
- the rubber composition forming the inner rubber layer 11b does not contain the hollow particles 17 or the foaming agent. Therefore, the inner rubber layer 11b includes a hollow portion that exists inside the surface rubber layer 11a. Absent. Moreover, it is preferable that the short fiber is not mix
- the internal rubber layer 11b has a storage longitudinal elastic modulus (E ′) at 25 ° C. in the belt length direction higher than that of the surface rubber layer 11a, and is 30 to 50 MPa, preferably 35 to 45 MPa.
- the adhesive rubber layer 12 is formed in a band shape having a horizontally long cross section, and has a thickness of, for example, 1.0 to 2.5 mm.
- the back rubber layer 13 is also formed in a band shape having a horizontally long cross section, and has a thickness of, for example, 0.4 to 0.8 mm.
- the surface of the back rubber layer 13 is preferably formed in a form in which the texture of the woven fabric is transferred from the viewpoint of suppressing the sound generated between the back rubber layer 13 and the flat pulley in contact with the belt back surface.
- Each of the adhesive rubber layer 12 and the back rubber layer 13 is formed of a rubber composition in which an uncrosslinked rubber composition in which various compounding agents are blended with a raw rubber and kneaded is heated and pressurized to be crosslinked with the crosslinking agent. It is preferable.
- the back rubber layer 13 is preferably formed of a rubber composition that is slightly harder than the adhesive rubber layer 12 from the viewpoint of suppressing the occurrence of adhesion due to contact with the flat pulley with which the belt back contacts.
- Examples of the raw rubber of the rubber composition for forming the adhesive rubber layer 12 and the back rubber layer 13 include, for example, ethylene- ⁇ -olefin elastomer, chloroprene rubber (CR), chlorosulfonated polyethylene rubber (CSM), hydrogenated acrylonitrile rubber ( H-NBR) and the like.
- the raw rubber for the adhesive rubber layer 12 and the back rubber layer 13 is preferably the same as the raw rubber for the compressed rubber layer 11.
- the compounding agent for example, a reinforcing material such as carbon black, a softening agent, a processing aid, a vulcanizing aid, a crosslinking agent, a vulcanization accelerator, a rubber compounding resin, an anti-aging agent, etc. Is mentioned.
- the internal rubber layer 11b, the adhesive rubber layer 12, and the back rubber layer 13 of the compressed rubber layer 11 may be formed of a rubber composition having a different composition, or may be formed of a rubber composition having the same composition. Good.
- the core wire 14 is composed of twisted yarns such as polyester fiber (PET), polyethylene naphthalate fiber (PEN), aramid fiber, vinylon fiber and the like.
- PET polyester fiber
- PEN polyethylene naphthalate fiber
- aramid fiber vinylon fiber and the like.
- the core 14 is subjected to an adhesive treatment that is heated after being immersed in an RFL aqueous solution before forming and / or an adhesive treatment that is dried after being immersed in rubber paste in order to impart adhesion to the V-ribbed belt body 10. It has been subjected.
- the compression rubber layer 11 has the surface rubber layer 11a and the internal rubber layer 11b, and a large number of concaves are formed on the pulley contact surface of the surface rubber layer 11a. Since the hole 16 is formed and the storage longitudinal elastic modulus (E ′) at 25 ° C. in the belt length direction of the inner rubber layer 11b is higher than that of the surface rubber layer 11a and 30 to 50 MPa, Thus, it is possible to suppress the occurrence of slip noise and the reduction in power transmission capability when the belt runs.
- a belt forming die 20 including a cylindrical inner die 21 and an outer die 22 provided concentrically is used.
- the inner mold 21 is formed of a flexible material such as rubber.
- the outer mold 22 is made of a rigid material such as metal.
- the inner peripheral surface of the outer mold 22 is formed as a molding surface, and V rib forming grooves 23 are provided on the inner peripheral surface of the outer mold 22 at a constant pitch in the axial direction.
- the outer mold 22 is provided with a temperature control mechanism that controls the temperature by circulating a heat medium such as water vapor or a coolant such as water.
- the belt mold 20 is provided with a pressurizing means for pressurizing and expanding the inner mold 21 from the inside.
- each compounding agent is blended in the raw rubber and kneaded by a kneader such as a kneader or a Banbury mixer, and the resulting uncrosslinked rubber composition is formed into a sheet by calendar molding or the like.
- the uncrosslinked rubber sheets 11a ′ and 11b ′ for the surface rubber layer and the inner rubber layer of the compressed rubber layer 11 are produced.
- uncrosslinked rubber sheets 12 'and 13' for the adhesive rubber layer and the back rubber layer are also produced.
- the adhesion process which immerses in rubber paste and heat-drys is performed.
- a rubber sleeve 25 is placed on a cylindrical drum 24 having a smooth surface, and an uncrosslinked rubber sheet 13 ′ for the back rubber layer and an uncrosslinked rubber sheet for the adhesive rubber layer are placed thereon. 12 ′ are wound in order and laminated, and a twisted wire 14 ′ for a core wire is spirally wound around the cylindrical inner mold 21 from above, and an uncrosslinked rubber sheet 12 ′ for the adhesive rubber layer is further wound thereon.
- the uncrosslinked rubber sheet 11b ′ for the inner rubber layer in the compressed rubber layer 11 and the uncrosslinked rubber sheet 11a ′ for the surface rubber layer are wound in order to form the laminate 10 ′.
- the rubber sleeve 25 provided with the laminated body 10 ′ is removed from the cylindrical drum 24, and as shown in FIG. 6, it is set in an fitted state on the inner peripheral surface side of the outer mold 22.
- the inner mold 21 is positioned and sealed in the rubber sleeve 25 set on the outer mold 22.
- the outer mold 22 is heated, and high-pressure air or the like is injected into the sealed interior of the inner mold 21 to pressurize it.
- the inner mold 21 expands, and uncrosslinked rubber sheets 11 a ′, 11 b ′, 12 ′, 13 ′ for forming the belt of the laminated body 10 ′ are formed on the molding surface of the outer mold 22. They are compressed, and their cross-linking progresses and integrates, and they are combined with the twisted yarn 14 '.
- the hollow particles 17 in the non-cross-linked rubber sheet 11a' or a foaming agent are used in many portions corresponding to the surface rubber layer 11a.
- the hollow portion is formed, and finally, a cylindrical belt slab S is formed.
- the molding temperature of the belt slab S is, for example, 100 to 180 ° C.
- the molding pressure is, for example, 0.5 to 2.0 MPa
- the molding time is, for example, 10 to 60 minutes.
- the inside of the inner mold 21 is decompressed to release the seal, the belt slab S molded between the inner mold 21 and the outer mold 22 is taken out via the rubber sleeve 25, and the belt slab S is cut into a predetermined width.
- the V-ribbed belt B is obtained by turning the front and back. If necessary, the outer peripheral side of the belt slab S, that is, the surface on the V rib 15 side may be polished. By this polishing, a part of the hollow particles 17 blended in the rubber composition forming the surface rubber layer 11a is cut off on the surface on the V rib 15 side, or the rubber composition forming the surface rubber layer 11a. By removing a part of the hollow portion formed by the foaming agent blended with the recess 16, the concave hole 16 can be reliably exposed.
- FIG. 9 shows a pulley layout of the auxiliary drive belt transmission device 30 for an automobile using the V-ribbed belt B according to the present embodiment.
- This accessory drive belt transmission device 30 is of a serpentine drive type in which a V-ribbed belt B is wound around six pulleys, four rib pulleys and two flat pulleys, to transmit power.
- the auxiliary drive belt transmission device 30 is provided with a power steering pulley 31 of a rib pulley at the uppermost position, and an AC generator pulley 32 of a rib pulley is provided below the power steering pulley 31.
- a flat pulley tensioner pulley 33 is provided at the lower left of the power steering pulley 31, and a flat pulley water pump pulley 34 is provided below the tensioner pulley 33.
- a ribshaft crankshaft pulley 35 is provided on the lower left side of the tensioner pulley 33, and a rib pulley air conditioner pulley 36 is provided on the lower right side of the crankshaft pulley 35.
- These pulleys are made of, for example, a metal press-worked product, a casting, a resin molded product such as a nylon resin, a phenol resin, and the diameter of the pulley is 50 to 150 mm.
- the V-ribbed belt B is wound around the power steering pulley 31 so that the V-rib 15 side contacts, and then wound around the tensioner pulley 33 so that the back surface of the belt contacts. After that, it is wound around the crankshaft pulley 35 and the air conditioner pulley 36 in order so that the V rib 15 side comes into contact, and is further wound around the water pump pulley 34 so that the back of the belt comes into contact. Thus, it is wound around the AC generator pulley 32 and finally returned to the power steering pulley 31.
- the belt span length which is the length of the V-ribbed belt B spanned between the pulleys, is, for example, 50 to 300 mm. Misalignment that can occur between pulleys is 0-2 °.
- the V-ribbed belt B is shown as the friction transmission belt, but it is not particularly limited to this, and a low-edge type V-belt or the like may be used.
- the V-ribbed belt main body 10 is configured by the compressed rubber layer 11, the adhesive rubber layer 12, and the back rubber layer 13.
- the present invention is not particularly limited thereto, and the compressed rubber layer 11 is not limited thereto.
- the V-ribbed belt main body 10 is constituted by the adhesive rubber layer 12, and is constituted by a woven fabric, a knitted fabric, a non-woven fabric or the like formed of, for example, cotton, polyamide fiber, polyester fiber, aramid fiber or the like instead of the back rubber layer 13. It may be provided with a reinforcing cloth.
- the accessory driving belt transmission device 20 of the automobile is shown as the belt transmission device, but the belt transmission device is not particularly limited to this, and may be a belt transmission device for general industries.
- EPDM (trade name: EP22 manufactured by JSR) is used as a raw rubber, and 100 parts by weight of this raw rubber, 80 parts by weight of HAF carbon black (trade name: Seast 3 manufactured by Tokai Carbon Co., Ltd.), paraffinic oil (manufactured by Sun Oil Co., Ltd.) Product name: Thumper 2280) 8 parts by weight, processing aid (trade name: Beads stearic acid soot made by NOF Corporation), 1 part by weight, vulcanization aid (trade name: Zinc Hana No.
- Vulcanizing agent (trade name: Oil Sulfur manufactured by Hosoi Chemical Co., Ltd.) 2.3 parts by mass
- vulcanization accelerator (trade name: EP-150 manufactured by Ouchi Shinsei Chemical Co., Ltd.), 4 parts by mass
- resin for rubber compounding (Sumitomo Bakelite) Company name: Sumilite resin PR-13355) 3 parts by mass and hollow particles (Sekisui Chemical Co., Ltd. product name: Advancel EMS-026) 5 parts by mass were kneaded with a Banbury mixer, The uncrosslinked rubber sheets prepared by rolling to the surface rubber 1 in Daroru.
- -Surface rubber 2- The uncrosslinked rubber produced in the same manner as the surface rubber 1 except that the blending amount with respect to 100 parts by mass of the raw material rubber was 4 parts by mass of paraffinic oil, 6 parts by mass of the vulcanization accelerator, and 10 parts by mass of the rubber compounding resin.
- the sheet was surface rubber 2.
- the blending amount with respect to 100 parts by mass of the raw rubber is 70 parts by mass of HAF carbon black, 5 parts by mass of paraffinic oil, and 5 parts by mass of rubber compounding resin.
- a foaming agent manufactured by Sankyo Kasei Co., Ltd.
- ⁇ Rubber composition for internal rubber layer of compression rubber layer The following internal rubbers 1 to 6 were prepared and prepared as a rubber composition for the internal rubber layer of the compression rubber layer. Each configuration is also shown in Table 3.
- EPDM (trade name: EP22 manufactured by JSR) is used as a raw rubber, and 100 parts by weight of the raw rubber is 70 parts by weight of HAF carbon black (trade name: Seast 3 manufactured by Tokai Carbon Co., Ltd.), paraffinic oil (manufactured by Sun Oil Co., Ltd.).
- HAF carbon black trade name: Seast 3 manufactured by Tokai Carbon Co., Ltd.
- paraffinic oil manufactured by Sun Oil Co., Ltd.
- Product name: Thumper 2280 5 parts by weight
- processing aid (trade name: manufactured by NOF Corporation: 1 part by weight of bean stearate), vulcanization aid (trade name: Zinc Hana No.
- Vulcanizing agent (trade name: Oil Sulfur manufactured by Hosoi Chemical Co., Ltd.) 2.3 parts by mass
- vulcanization accelerator (trade name: EP-150 manufactured by Ouchi Shinsei Chemical Co., Ltd.)
- rubber compounding resin (Sumitomo) An uncrosslinked rubber sheet produced by blending 1.7 parts by mass of Bakelite Co., Ltd. trade name: Sumilite Resin PR-13355) with a Banbury mixer and rolling with a calender roll was used as internal rubber 1.
- a polyester fiber manufactured by Teijin Ltd. has a 1100 dtex / 2 ⁇ 3 (upper twist number 9.5 T / 10 cm (Z), lower twist number 2.19 T / 10 cm) twisted yarn, solid content concentration
- a process of heating and drying at 240 ° C. for 40 seconds after immersion in a 20% by weight isocyanate solution in isocyanate, a process of heating and drying at 200 ° C. for 80 seconds after immersion in an RFL aqueous solution, and a rubber composition for an adhesive rubber layer in toluene Preparations were made by sequentially immersing them in the dissolved rubber paste, followed by heat drying at 60 ° C. for 40 seconds.
- V-ribbed belt The following Examples 1 to 15 and Comparative Examples 1 to 6 were produced as V-ribbed belts for test evaluation. Each configuration is also shown in Tables 4-9.
- Example 1 Surface rubber 1 as a rubber composition for the surface rubber layer of the compression rubber layer, Internal rubber 1 as a rubber composition for the internal rubber layer of the compression rubber layer, a rubber composition for the adhesive rubber layer, and a rubber composition for the back rubber layer, and A V-ribbed belt manufactured by the same method as that of the embodiment using a twisted wire for a cord was designated as Example 1.
- the V-ribbed belt of Example 1 had a belt circumferential length of 1117 mm, a belt thickness of 4.3 mm, a V-rib height of 2.0 mm, and three ribs (belt width 10.68 mm). Moreover, the thickness of the surface rubber layer was formed to 400 ⁇ m.
- Example 2 A V-ribbed belt produced in the same manner as in Example 1 except that the surface rubber 2 was used as the rubber composition for the surface rubber layer of the compressed rubber layer and the inner rubber 2 was used as the rubber composition for the inner rubber layer of the compressed rubber layer. Example 2 was adopted.
- Example 3 A V-ribbed belt produced in the same manner as in Example 1 except that the surface rubber 3 was used as the rubber composition for the surface rubber layer of the compression rubber layer and the inner rubber 3 was used as the rubber composition for the inner rubber layer of the compression rubber layer. Example 3 was adopted.
- Example 4 A V-ribbed belt produced in the same manner as in Example 1 except that the thickness of the surface rubber layer was 40 ⁇ m was designated as Example 4.
- Example 5 A V-ribbed belt produced in the same manner as in Example 1 except that the thickness of the surface rubber layer was 60 ⁇ m was designated as Example 5.
- Example 6 A V-ribbed belt produced in the same manner as in Example 1 except that the thickness of the surface rubber layer was 450 ⁇ m was designated as Example 6.
- Example 7 A V-ribbed belt produced in the same manner as in Example 1 except that the thickness of the surface rubber layer was 550 ⁇ m was designated as Example 7.
- Example 8 The surface rubber 1 is used as the rubber composition for the surface rubber layer of the compression rubber layer, and the internal rubber 3 is used as the rubber composition for the internal rubber layer of the compression rubber layer.
- the storage longitudinal elastic modulus E ′ in the belt length direction to be described later is 35.
- Example 9 A V-ribbed belt produced in the same manner as in Example 8 except that the molding pressure was manipulated so that the storage longitudinal elastic modulus E ′ in the belt length direction was 25.4 MPa and the average hole diameter of the concave holes was 147 ⁇ m. It was.
- Example 10 A V-ribbed belt produced in the same manner as in Example 8 except that the molding pressure was manipulated so that the storage longitudinal elastic modulus E ′ in the belt length direction was 23.4 MPa and the average hole diameter of the concave holes was 169 ⁇ m. It was.
- Example 11 A V-ribbed belt produced in the same manner as in Example 2 except that the surface rubber 7 was used as the rubber composition for the surface rubber layer of the compressed rubber layer was designated as Example 11.
- Example 12 A V-ribbed belt produced in the same manner as in Example 2 except that the surface rubber 8 was used as the rubber composition for the surface rubber layer of the compression rubber layer was designated as Example 12.
- Example 13 A V-ribbed belt produced in the same manner as in Example 2 except that the surface rubber 9 was used as the rubber composition for the surface rubber layer of the compression rubber layer was designated as Example 13.
- Example 1 A V-ribbed belt produced in the same manner as in Example 1 except that the internal rubber 3 was used as the rubber composition for the surface rubber layer of the compression rubber layer and the internal rubber 3 was used as the rubber composition for the internal rubber layer of the compression rubber layer. It was set as Comparative Example 1. In this comparative example 1, a single compressed rubber layer is formed using a single internal rubber 3.
- Example 2 A V-ribbed belt produced in the same manner as in Example 1 except that the inner rubber 4 was used as the rubber composition for the surface rubber layer of the compression rubber layer and the inner rubber 4 was used as the rubber composition for the inner rubber layer of the compression rubber layer. It was set as Comparative Example 2. In Comparative Example 2, a single compressed rubber layer is formed using a single internal rubber 4.
- Example 5 A V-ribbed belt produced in the same manner as in Example 1 except that the surface rubber 5 was used as the rubber composition for the surface rubber layer of the compression rubber layer, and the internal rubber 1 was used as the rubber composition for the internal rubber layer of the compression rubber layer. It was set as Comparative Example 5.
- FIG. 10 shows a pulley layout of a multi-axis bending belt running test machine 40 for evaluating bending fatigue resistance of the V-ribbed belt B.
- a first driven pulley 41 and a driving pulley 42 of a rib pulley each having a pulley diameter of 45 mm are vertically arranged, and on the right side in the middle in the vertical direction,
- the multi-axis bending belt running tester 40 is wound around each of the first and second driven pulleys 41 and 44 and the driving pulley 42 so that the V-rib contacts.
- the belt is wound around each of the two idler pulleys 43 so that the back of the belt comes into contact with the belt, and the first driven pulley 41 is pulled upward so that a dead weight of 588.4 N is loaded.
- the V-ribbed belt B was run by rotating 42 at a rotational speed of 5100 rpm. And time until a crack generate
- FIG. 11 shows a pulley layout of the belt running test machine 50 for measuring the slip noise of the V-ribbed belt B.
- a first driven pulley 51 and a driving pulley 52 each comprising a rib pulley having a pulley diameter of 120 mm are arranged vertically, and an idler having a pulley diameter of 70 mm in the middle in the vertical direction thereof.
- a pulley 53 is provided, and further, a second driven pulley 54 made of a rib pulley having a pulley diameter of 55 mm is provided on the right side of the idler pulley 53.
- Each of the idler pulley 53 and the second driven pulley 54 is arranged so that the belt winding angle is 90 °.
- the noise measurement belt running test machine 50 is wound around each of the first and second driven pulleys 51 and 54 and the drive pulley 52 so that the V-rib contacts.
- the belt is wound around the idler pulley 53 so that the back surface of the belt comes into contact, and a rotational load is applied to the first driven pulley 51 so as to be 2.5 kW per 1 V rib, and a set weight of 277 N is applied per 1 V rib.
- the second driven pulley 54 was set to be pulled sideways, and the drive pulley 52 was rotated at a rotational speed of 4900 rpm to run the V-ribbed belt B. Then, water was injected into the drive pulley 52 at a rate of 200 ml / min, and the slip noise generated during belt running was ranked from “large” to “none” by sensory evaluation and evaluated.
- Test evaluation results The test evaluation results are shown in Tables 1-9.
- the storage longitudinal elastic modulus E ′ in the belt length direction at 25 ° C. is as follows: surface rubber 1 is 28.6 MPa, surface rubber 2 is 43.6 MPa, surface rubber 3 is 33.6 NPa, surface rubber 4 is 26.4 MPa, surface rubber 5 is 36.5 MPa, surface rubber 6 is 47.7 MPa, surface rubber 7 is 44.3 MPa, surface rubber 8 is 35.7 MPa, surface rubber 9 is 27.4 MPa, surface rubber 10 is 35.2 MPa, and internal rubber 1 was 32.6 MPa, internal rubber 2 was 47.7 MPa, internal rubber 3 was 36.1 MPa, internal rubber 4 was 35.5 MPa, internal rubber 5 was 27.8 MPa, and internal rubber 6 was 51.3 MPa.
- the average hole diameter of the concave holes is 86 ⁇ m for surface rubber 1, 82 ⁇ m for surface rubber 2, 85 ⁇ m for surface rubber 3, 89 ⁇ m for surface rubber 5, 95 ⁇ m for surface rubber 5, 92 ⁇ m for surface rubber 7, 84 ⁇ m for surface rubber 8 Rubber 9 was 92 ⁇ m, surface rubber 10 was 89 ⁇ m, and internal rubber 2 was 94 ⁇ m.
- Bending fatigue life is 1000 hours or more in Example 1, 960 hours in Example 2, 1000 hours or more in Example 3, 1000 hours or more in Example 4, 1000 hours or more in Example 5, and 1000 hours in Example 6.
- Example 7 is 856 hours
- Example 8 is 1000 hours or more
- Example 9 is 921 hours or more
- Example 10 is 836 hours
- Example 11 is 1000 hours or more
- Example 12 is 824 hours
- Example 13 is 755 hours
- Comparative Example 1 is 1000 hours or more
- Comparative Example 2 is 648 hours
- Comparative Example 3 is 1000 hours or more
- Comparative Example 4 is 600 hours
- Comparative Example 5 is 720 hours
- Comparative Example 6 is 1000 hours or more.
- Comparative Example 7 was 1000 hours or longer, and Comparative Example 8 was 537 hours.
- Example 1 The slip noise evaluation is “None” in Example 1, “None” in Example 2, “Small” in Example 3, “Medium” in Example 4, “Small” in Example 5, and “Small” in Example 6. None, Example 7 “None”, Example 8 “Medium”, Example 9 “None”, Example 10 “None”, Example 11 “Small”, Example 12 “None” And Example 13 is “None”, and Comparative Example 1 is “Large”, Comparative Example 2 is “None”, Comparative Example 3 is “Large”, Comparative Example 4 is “None”, and Comparative Example 5 is “None”. Comparative Example 6 was “Large”, Comparative Example 7 was “Large”, and Comparative Example 8 was “None”.
- the present invention is useful for friction transmission belts.
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Abstract
Description
上記圧縮ゴム層は、プーリ接触表面に多数の凹孔が形成された表面ゴム層と、該表面ゴム層よりもベルト内部側に設けられ25℃におけるベルト長さ方向の貯蔵縦弾性係数が該表面ゴム層よりも高く且つ30~50MPaである内部ゴム層と、を有する。
<圧縮ゴム層の表面ゴム層用ゴム組成物>
圧縮ゴム層の表面ゴム層用ゴム組成物として、以下の表面ゴム1~10を作製準備した。それぞれの構成については表1及び2にも示す。
EPDM(JSR社製 商品名:EP22)を原料ゴムとし、この原料ゴム100質量部に対し、HAFカーボンブラック(東海カーボン社製 商品名:シースト3)80質量部、パラフィン系オイル(サンオイル社製 商品名:サンパー2280)8質量部、加工助剤(日油社製 商品名:ビーズステアリン酸椿)1質量部、加硫助剤(堺化学社製 商品名:亜鉛華1号)5質量部、加硫剤(細井化学社製 商品名:オイルサルファ)2.3質量部、加硫促進剤(大内新興化学社製 商品名:EP-150)4質量部、ゴム配合用樹脂(住友ベークライト社製 商品名:スミライトレジンPR-13355)3質量部、及び中空粒子(積水化学社製 商品名:アドバンセルEMS-026)5質量部を配合したものをバンバリーミキサーで混練後、カレンダロールで圧延して作製した未架橋ゴムシートを表面ゴム1とした。
原料ゴム100質量部に対する配合量を、パラフィン系オイル4質量部、加硫促進剤6質量部、及びゴム配合用樹脂10質量部としたことを除いて表面ゴム1と同様に作製した未架橋ゴムシートを表面ゴム2とした。
原料ゴム100質量部に対する配合量を、HAFカーボンブラック70質量部、パラフィン系オイル5質量部、及びゴム配合用樹脂5質量部とし、中空粒子の代わりに発泡剤(三協化成社製 商品名:セルマイクCAP-500)を原料ゴム100質量部に対して5質量部配合したことを除いて表面ゴム1と同様に作製した未架橋ゴムシートを表面ゴム3とした。
原料ゴム100質量部に対する配合量を、HAFカーボンブラック70質量部としたことを除いて表面ゴム1と同様に作製した未架橋ゴムシートを表面ゴム4とした。
原料ゴム100質量部に対する配合量を、HAFカーボンブラック90質量部、パラフィン系オイル5質量部、及びゴム配合用樹脂5質量部としたことを除いて表面ゴム1と同様に作製した未架橋ゴムシートを表面ゴム5とした。
中空粒子を配合していないことを除いて表面ゴム2と同様に作製した未架橋ゴムシートを表面ゴム6とした。
原料ゴム100質量部に対する配合量を、中空粒子0.5質量部としたことを除いて表面ゴム2と同様に作製した未架橋ゴムシートを表面ゴム7とした。
原料ゴム100質量部に対する配合量を、中空粒子10質量部としたことを除いて表面ゴム2と同様に作製した未架橋ゴムシートを表面ゴム8とした。
原料ゴム100質量部に対する配合量を、中空粒子12質量部、及びゴム配合用樹脂13質量部としたことを除いて表面ゴム2と同様に作製した未架橋ゴムシートを表面ゴム9とした。
原料ゴム100質量部に対してナイロン短繊維(旭化成社製 商品名:レオナ66、繊維長1mm)25質量部を追加して配合したことを除いて表面ゴム1と同様に作製した未架橋ゴムシートを表面ゴム10とした。
圧縮ゴム層の内部ゴム層用ゴム組成物として、以下の内部ゴム1~6を作製準備した。それぞれの構成については表3にも示す。
EPDM(JSR社製 商品名:EP22)を原料ゴムとし、この原料ゴム100質量部に対し、HAFカーボンブラック(東海カーボン社製 商品名:シースト3)70質量部、パラフィン系オイル(サンオイル社製 商品名:サンパー2280)5質量部、加工助剤(日油社製 商品名:ビーズステアリン酸椿)1質量部、加硫助剤(堺化学社製 商品名:亜鉛華1号)5質量部、加硫剤(細井化学社製 商品名:オイルサルファ)2.3質量部、加硫促進剤(大内新興化学社製 商品名:EP-150)4質量部、及びゴム配合用樹脂(住友ベークライト社製 商品名:スミライトレジンPR-13355)1.7質量部を配合したものをバンバリーミキサーで混練後、カレンダロールで圧延して作製した未架橋ゴムシートを内部ゴム1とした。
原料ゴム100質量部に対する配合量を、HAFカーボンブラック80質量部、パラフィン系オイル4質量部、加硫促進剤6質量部、及びゴム配合用樹脂10質量部としたことを除いて内部ゴム1と同様に作製した未架橋ゴムシートを内部ゴム2とした。
原料ゴム100質量部に対する配合量を、ゴム配合用樹脂5質量部としたことを除いて内部ゴム1と同様に作製した未架橋ゴムシートを内部ゴム3とした。
原料ゴム100質量部に対する配合量を、ゴム配合用樹脂5質量部とし、さらに中空粒子(積水化学社製 商品名:アドバンセルEMS-026)を原料ゴム100質量部に対して5質量部配合したことを除いて内部ゴム1と同様に作製した未架橋ゴムシートを内部ゴム4とした。
原料ゴム100質量部に対する配合量を、HAFカーボンブラック60質量部、及びパラフィン系オイル10質量部としたことを除いて内部ゴム1と同様に作製した未架橋ゴムシートを内部ゴム5とした。
原料ゴム100質量部に対する配合量を、HAFカーボンブラック90質量部、パラフィン系オイル4質量部、架橋剤2.5質量部、加硫促進剤6質量部、及びゴム配合用樹脂10質量部としたことを除いて内部ゴム1と同様に作製した未架橋ゴムシートを内部ゴム6とした。
接着ゴム層用ゴム組成物として、EPDMゴム組成物からなる接着ゴム層用の未架橋ゴムシート、また、背面ゴム層用ゴム組成物として、EPDMゴム組成物からなる背面ゴム層用の未架橋ゴムシートをそれぞれ作製準備した。
試験評価用のVリブドベルトとして、以下の実施例1~15及び比較例1~6を作製した。それぞれの構成については表4~9にも示す。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム1、圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム1、接着ゴム層用ゴム組成物、及び背面ゴム層用ゴム組成物、並びに心線用撚り糸を用い、実施形態と同様の方法により作製したVリブドベルトを実施例1とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム2、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム2を用いたことを除いて実施例1と同様に作製したVリブドベルトを実施例2とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム3、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム3を用いたことを除いて実施例1と同様に作製したVリブドベルトを実施例3とした。
表面ゴム層の厚さを40μmに形成したことを除いて実施例1と同様に作製したVリブドベルトを実施例4とした。
表面ゴム層の厚さを60μmに形成したことを除いて実施例1と同様に作製したVリブドベルトを実施例5とした。
表面ゴム層の厚さを450μmに形成したことを除いて実施例1と同様に作製したVリブドベルトを実施例6とした。
表面ゴム層の厚さを550μmに形成したことを除いて実施例1と同様に作製したVリブドベルトを実施例7とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム1、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム3を用い、後述のベルト長さ方向の貯蔵縦弾性係数E’が35.7MPa及び凹孔の平均孔径が44μmとなるように成型圧力を操作したことを除いて実施例1と同様に作製したVリブドベルトを実施例8とした。
ベルト長さ方向の貯蔵縦弾性係数E’が25.4MPa及び凹孔の平均孔径が147μmとなるように成型圧力を操作したことを除いて実施例8と同様に作製したVリブドベルトを実施例9とした。
ベルト長さ方向の貯蔵縦弾性係数E’が23.4MPa及び凹孔の平均孔径が169μmとなるように成型圧力を操作したことを除いて実施例8と同様に作製したVリブドベルトを実施例10とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム7を用いたことを除いて実施例2と同様に作製したVリブドベルトを実施例11とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム8を用いたことを除いて実施例2と同様に作製したVリブドベルトを実施例12とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム9を用いたことを除いて実施例2と同様に作製したVリブドベルトを実施例13とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として内部ゴム3、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム3を用いたことを除いて実施例1と同様に作製したVリブドベルトを比較例1とした。この比較例1は、単一の内部ゴム3を用いて圧縮ゴム層を単層に形成したものである。
圧縮ゴム層の表面ゴム層用ゴム組成物として内部ゴム4、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム4を用いたことを除いて実施例1と同様に作製したVリブドベルトを比較例2とした。この比較例2は、単一の内部ゴム4を用いて圧縮ゴム層を単層に形成したものである。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム4、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム5を用いたことを除いて実施例1と同様に作製したVリブドベルトを比較例3とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム2、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム6を用いたことを除いて実施例1と同様に作製したVリブドベルトを比較例4とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム5、及び圧縮ゴム層の内部ゴム層用ゴム組成物として内部ゴム1を用いたことを除いて実施例1と同様に作製したVリブドベルトを比較例5とした。
ベルト長さ方向の貯蔵縦弾性係数E’が41.2MPa及び凹孔の平均孔径が35μmとなるように成型圧力を操作したことを除いて実施例8と同様に作製したVリブドベルトを比較例6とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム6を用いたことを除いて実施例2と同様に作製したVリブドベルトを比較例7とした。
圧縮ゴム層の表面ゴム層用ゴム組成物として表面ゴム10を用いたことを除いて実施例1と同様に作製したVリブドベルトを比較例8とした。
<25℃におけるベルト長さ方向の貯蔵縦弾性係数E’>
表面ゴム1~10及び内部ゴム1~6のそれぞれについて、JIS K6394に基づき、ゴムシートを成型して所定の試験片を切り出し、25℃におけるベルト長さ方向に対応する列理方向の貯蔵縦弾性係数E’を測定した。なお、ゴムシートの成型圧力は実施例8~10及び比較例6を除いた実施例1~7及び実施例11~13並びに比較例1~5及び比較例7~8のベルト成形条件に対応させた。
表面ゴム1~5及び表面ゴム7~10並びに内部ゴム2のそれぞれについて、成型したゴムシートのカット面を、デジタルマイクロスコープ(キーエンス社製 型番:VHX-200)を用い、175倍の拡大倍率で観察画像を得た後、その観察画像をデジタルマイクロスコープの測定モードにより任意の複数の凹孔の孔径を計測し、その平均孔径を算出した。
図10はVリブドベルトBの耐屈曲疲労性評価用の多軸屈曲ベルト走行試験機40のプーリレイアウトを示す。
図11はVリブドベルトBのスリップ音測定用のベルト走行試験機50のプーリレイアウトを示す。
試験評価結果を表1~9に示す。
10 Vリブドベルト本体
11 圧縮ゴム層
11a 表面ゴム層
11b 内部ゴム層
16 凹孔
17 中空粒子
Claims (14)
- ベルト本体の内周側にプーリに接触して動力を伝達する圧縮ゴム層を備えた摩擦伝動ベルトであって、
上記圧縮ゴム層は、プーリ接触表面に多数の凹孔が形成された表面ゴム層と、該表面ゴム層よりもベルト内部側に設けられ25℃におけるベルト長さ方向の貯蔵縦弾性係数が該表面ゴム層よりも高く且つ30~50MPaである内部ゴム層と、を有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、
上記表面ゴム層の厚さが50~500μmである摩擦伝動ベルト。 - 請求項1又は2に記載された摩擦伝動ベルトにおいて、
上記表面ゴム層の25℃におけるベルト長さ方向の貯蔵縦弾性係数が20~45MPaである摩擦伝動ベルト。 - 請求項1乃至3のいずれかに記載された摩擦伝動ベルトにおいて、
上記表面ゴム層におけるプーリ接触表面に形成された多数の凹孔の平均孔径が40~150μmである摩擦伝動ベルト。 - 請求項1乃至4のいずれかに記載された摩擦伝動ベルトにおいて、
上記表面ゴム層におけるプーリ接触表面に形成された多数の凹孔が、該表面ゴム層を形成するゴム組成物に配合された中空粒子の一部が切除されることにより構成されている摩擦伝動ベルト。 - 請求項5に記載された摩擦伝動ベルトにおいて、
上記表面ゴム層を形成するゴム組成物における上記中空粒子の原料ゴム100質量部に対する配合量が0.5~10質量部である摩擦伝動ベルト。 - 請求項1乃至4のいずれかに記載された摩擦伝動ベルトにおいて、
上記表面ゴム層におけるプーリ接触表面に形成された多数の凹孔が、該表面ゴム層を形成するゴム組成物に配合された発泡剤により形成された中空部分の一部分が切除されることにより構成されている摩擦伝動ベルト。 - 請求項7に記載された摩擦伝動ベルトにおいて、
上記表面ゴム層を形成するゴム組成物における上記発泡剤の原料ゴム100質量部に対する配合量が1~15質量部である摩擦伝動ベルト。 - 請求項1乃至8に記載された摩擦伝動ベルトにおいて、
上記表面ゴム層を形成するゴム組成物には短繊維が配合されていない摩擦伝動ベルト。 - 請求項1乃至9に記載された摩擦伝動ベルトにおいて、
上記内部ゴム層を形成するゴム組成物には中空粒子及び発泡剤が配合されていない摩擦伝動ベルト。 - 請求項1乃至10に記載された摩擦伝動ベルトにおいて、
上記表面ゴム層を形成するゴム組成物の原料ゴムと上記内部ゴム層を形成するゴム組成物の原料ゴムとが同一である摩擦伝動ベルト。 - 請求項11に記載された摩擦伝動ベルトにおいて、
上記表面ゴム層及び上記内部ゴム層を形成するゴム組成物の原料ゴムがエチレン-α-オレフィンエラストマーである摩擦伝動ベルト。 - 請求項1乃至12に記載された摩擦伝動ベルトにおいて、
上記ベルト本体がVリブドベルト本体である摩擦伝動ベルト。 - 請求項1乃至13に記載された摩擦伝動ベルトが複数のプーリに巻き掛けられたベルト伝動装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/516,051 US9341234B2 (en) | 2009-12-14 | 2010-11-18 | Friction drive belt |
KR1020127017801A KR101292987B1 (ko) | 2009-12-14 | 2010-11-18 | 마찰 전동벨트 |
CN201080056117.1A CN102667236B (zh) | 2009-12-14 | 2010-11-18 | 摩擦传动带 |
EP10837219.4A EP2514994B1 (en) | 2009-12-14 | 2010-11-18 | Friction transmission belt |
JP2011505269A JP4768893B2 (ja) | 2009-12-14 | 2010-11-18 | 摩擦伝動ベルト |
IN6210DEN2012 IN2012DN06210A (ja) | 2009-12-14 | 2012-07-12 |
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JP2009-282890 | 2009-12-14 | ||
JP2009282890 | 2009-12-14 |
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WO2011074182A1 true WO2011074182A1 (ja) | 2011-06-23 |
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PCT/JP2010/006772 WO2011074182A1 (ja) | 2009-12-14 | 2010-11-18 | 摩擦伝動ベルト |
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US (1) | US9341234B2 (ja) |
EP (1) | EP2514994B1 (ja) |
JP (1) | JP4768893B2 (ja) |
KR (1) | KR101292987B1 (ja) |
CN (1) | CN102667236B (ja) |
IN (1) | IN2012DN06210A (ja) |
WO (1) | WO2011074182A1 (ja) |
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US20230011219A1 (en) * | 2019-12-16 | 2023-01-12 | Dayco Europe S.R.L. | Power transmission belt and its transmission system |
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KR101449535B1 (ko) | 2013-08-05 | 2014-10-13 | 한국전력공사 | 풍력 터빈 블레이드의 상태 감시를 위한 신호 처리 장치 및 그 방법 |
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DE102018116084A1 (de) * | 2018-07-03 | 2020-01-09 | Arntz Beteiligungs Gmbh & Co. Kg | Verfahren zur Herstellung eines Keilrippenriemens mit Rippenbeschichtung |
US20220099157A1 (en) * | 2019-01-28 | 2022-03-31 | Mitsuboshi Belting Ltd. | V-ribbed belt and method for producing same |
CN113994123B (zh) * | 2019-06-07 | 2022-07-15 | 阪东化学株式会社 | 大型v型带 |
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Also Published As
Publication number | Publication date |
---|---|
US20120295748A1 (en) | 2012-11-22 |
JPWO2011074182A1 (ja) | 2013-04-25 |
JP4768893B2 (ja) | 2011-09-07 |
CN102667236A (zh) | 2012-09-12 |
KR20120097395A (ko) | 2012-09-03 |
IN2012DN06210A (ja) | 2015-09-25 |
KR101292987B1 (ko) | 2013-08-02 |
EP2514994B1 (en) | 2017-03-08 |
EP2514994A1 (en) | 2012-10-24 |
CN102667236B (zh) | 2016-05-18 |
US9341234B2 (en) | 2016-05-17 |
EP2514994A4 (en) | 2016-04-20 |
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