186results about "Driving belts" patented technology

A variety of transmission mechanisms are provided that include split pulleys nested within each other in order to reduce the size of the transmissions, to provide infinitely variable transmission ratios that include forward and reverse ratios, or to provide some other benefits. These transmissions include "W"-shaped belts, having both contact surfaces that are directed outward from the belt and inward, toward a center-line of the belt, to contact the pulleys with respective different inward- and outward-directed contact surfaces. Accordingly, the surfaces at which the belt contacts the different pulleys may be substantially the same with respect to a hinge or other structure of the belt. This improvement may permit higher levels of power transmission, increased efficiency, and increased transmission lifetime. Additionally, variable-eccentricity variable transmissions are provided wherein the eccentricity of rotation of an inner, nested pulley varies with changes in the transmission ratio of the transmission.

To improve the wear resistance and productivity of power transmission belts. [Solution] A rubber composition containing an ethylene-long-chain α-olefin-non-conjugated polyene copolymer, in which the long-chain α-olefin units have 4 or more carbon atoms, in a proportion of 25% by mass or more in the rubber component is compounded with the fabric of the transmission belt. The rubber composition may further contain silica, hard carbon black, aliphatic oil, tackifier, etc. At least a portion of the belt surface may be covered with a composite of the crosslinked rubber composition and the fabric to produce the transmission belt. This transmission belt may be a wrapped V-belt.

The invention discloses a hybrid synchronous transmission device, which is characterized in that a synchronous wheel and a gearless wheel form a synchronous belt on the side of the synchronous wheel, and the length of the synchronous belt is greater than or equal to the sum of the length of the synchronous belt at the swing angle of the synchronous wheel and the length of the synchronous belt at the wrap angle of the synchronous wheel; the length of the toothless belt is larger than or equal to the sum of the length of the toothless belt at the gearless swing angle and the length of the toothless belt at the gearless wrap angle, the toothless belt wheel and the toothless belt are matched to rotate all the time in the whole transmission process, and when position deviation exists between the axes of the two transmission wheels, relative to the rigidity of the synchronous belt, the transmission speed is increased. The toothless part of the mixing belt can be a flexible belt, and the synchronous belt is only meshed with one synchronous wheel, so that abrasion caused by dislocation can be avoided.

A drive belt (10) comprising a body (12) made of an elastomeric matrix (12a) and extending along an extension direction (X), and a reinforcement (14) integral with the body (12) and extending across the width of the belt, the body (12) comprising a mechanical drive surface (15) comprising a plurality of teeth (16) extending transversely along a transverse direction (Y) perpendicular to the extension direction (X). The elastomeric matrix (12a) is made of a first material comprising a thermoplastic elastomer, said elastomeric matrix (12a) being overmolded onto the reinforcement (14). The reinforcement (14) is composed of at least one layer of at least one wound strip (14a). (See Figure 3 for abbreviations.)

The utility model relates to the technical field of belts, and discloses a belt with a rapid hole position adjusting function, which comprises an outer cover, a transmission belt is arranged on the inner side of the outer cover, grooves are formed in the front side and the rear side of the top of the outer cover, moving blocks are fixedly connected to the front side and the rear side of the top end of the transmission belt, and pull ropes are fixedly connected to the inner sides of the moving blocks. Mounting blocks are fixedly connected to the left side and the right side of the exterior of the pull rope, clamping blocks are fixedly connected to the outer sides of the mounting blocks, clamping groove blocks are fixedly connected to the left side and the right side of the top of the outer cover, and the clamping groove blocks and the clamping blocks are clamped. During operation, the mounting plate is held to pull the pull rope and the movable block, so that the pull rope and the movable block slide along the groove in the top of the outer cover, the transmission belt is driven to move on the inner side of the outer cover, the transmission belt and the outer cover are adjusted to be intersected and staggered, the hole position can be adjusted, and then the mounting plate is clamped and fixed through the clamping block and the clamping groove block; hole adjustment can be completed on the premise that use of the belt is not affected.

A toothed belt having multiple belt teeth arranged at a constant pitch in the longitudinal direction of the belt, wherein the belt teeth mesh with pulley grooves provided at a constant pitch on the periphery of the toothed pulley, wherein the area Sb of the backlash of the belt teeth with respect to the pulley groove and the area Sp of one of the pulley grooves are 7.26 × 10 -2 ≥Sb / Sp ≥ 3.46 × 10 -2 ...(1) and the tooth height Hb of the belt teeth and the tooth groove bottom depth Hp of the pulley groove are 1.04 ≥ Hb / Hp ≥ 0.91 ...(2) A toothed belt.

The present invention provides a transmission belt with excellent adhesion (bonding strength) between the silicone rubber layer on the conveying surface and the ethylene α-olefin elastomer layer laminated on the inner circumferential surface of the silicone rubber layer. [Solution] A transmission belt 1 for transporting articles, comprising a core wire 3 extending along the circumferential direction of the belt and an outer peripheral rubber layer 2 formed on the outer peripheral side of the belt relative to the core wire 3, wherein the outer peripheral surface of the outer peripheral rubber layer 2 is used for transporting articles. The outer periphery rubber layer 2 has a laminated structure including a first rubber layer 2a that forms the transport surface which is the outer periphery, and a second rubber layer 2b laminated on the inner periphery of the first rubber layer 2a. The first rubber layer 2a is formed from a crosslinked product of a first rubber composition containing silicone rubber, The second rubber layer 2b is formed of a crosslinked product of the second rubber composition containing ethylene-α-olefin elastomer, and The first rubber composition and / or the second rubber composition are blended with an unsaturated carboxylic acid metal salt.

To provide a high-performance transmission belt.SOLUTION: A transmission belt B has at least a portion 111 of a belt body 11 formed of a crosslinked rubber composition. The crosslinked rubber composition is composed of a crosslinked product of an uncrosslinked rubber composition containing a rubber component, nanofibers, carbon black, zinc dimethacrylate, and an amylphenol disulfide polymer. In the crosslinked rubber composition, the nanofibers are oriented in the belt width direction. In the uncrosslinked rubber composition, the content of the carbon black is between 25 parts by mass and 70 parts by mass, and the sum of the contents of the carbon black and the zinc dimethacrylate is between 35 parts by mass and 75 parts by mass, relative to 100 parts by mass of the rubber component.SELECTED DRAWING: Figure 1A

The invention relates to the technical field of oil extraction, in particular to a steel wire arrangement method for manufacturing a driving belt of a tower type oil pumping unit, and the driving belt of the tower type oil pumping unit comprises a plurality of layers of driving belts which are sequentially an upper rubber layer, an aramid fiber layer, a core rubber layer, an aramid fiber layer and a lower rubber layer from top to bottom, steel wire ropes are distributed in a core rubber layer of the driving belt, each steel wire rope is formed by twisting seven steel wire strands, and each steel wire strand is formed by twisting seven steel wires. The number of the steel wire ropes distributed in the driving belt is increased under the condition that the thickness of the driving belt is not increased, the tensile strength of the driving belt is improved, the service life of the driving belt is prolonged, the steel wire ropes wound on the upper pulley and the lower pulley can be evenly stressed through the arrangement mode of the steel wire ropes and the arrangement of the upper pulley and the lower pulley, and the service life of the driving belt is prolonged. And a driving belt is prevented from being influenced by uneven stress of the steel wire rope.

A method of manufacturing a joint in a toothed belt, the toothed belt comprising a first belt section (10) having a first end-edge (11) and a second belt section (20) having a second end-edge (21), the sections (10, 20) having a longitudinal axis (L) and a plurality of teeth (50) spaced apart along the longitudinal axis (L), the method comprising the steps of bringing the first (11) and second end-edges (21) together to form an interface (30) between the first (10) and second sections (20), joining a common tooth (40) to both the first (10) and second sections (20) such that the common tooth (40) extends across the interface (30).

The present invention provides a power transmission belt with excellent adhesion (bonding strength) between the silicone rubber layer on the conveying surface and the hydrogenated nitrile rubber layer laminated on the inner circumferential surface of the silicone rubber layer. [Solution] A transmission belt 1 for transporting articles, comprising a core wire 3 extending along the circumferential direction of the belt and an outer peripheral rubber layer 2 formed on the outer peripheral side of the belt relative to the core wire 3, wherein the outer peripheral surface of the outer peripheral rubber layer 2 is used for transporting articles. The outer periphery rubber layer 2 has a laminated structure including a first rubber layer 2a that forms the transport surface which is the outer periphery, and a second rubber layer 2b laminated on the inner periphery of the first rubber layer 2a. The first rubber layer 2a is formed from a crosslinked product of a first rubber composition containing silicone rubber, The second rubber layer 2b is formed of a crosslinked product of a second rubber composition containing hydrogenated nitrile rubber, and The first rubber composition and / or the second rubber composition are blended with an unsaturated carboxylic acid metal salt.

The present invention provides a transmission belt with excellent adhesion (bonding strength) between the silicone rubber layer on the conveying surface and the ethylene α-olefin elastomer layer laminated on the inner circumferential surface of the silicone rubber layer. [Solution] A transmission belt 1 for transporting articles, comprising a core wire 3 extending along the circumferential direction of the belt and an outer peripheral rubber layer 2 formed on the outer peripheral side of the belt relative to the core wire 3, wherein the outer peripheral surface of the outer peripheral rubber layer 2 is used for transporting articles. The outer periphery rubber layer 2 has a laminated structure including a first rubber layer 2a that forms the transport surface which is the outer periphery, an intermediate layer 2b laminated on the inner periphery of the first rubber layer 2a, and a second rubber layer 2c laminated on the inner periphery of the intermediate layer 2b. The first rubber layer 2a is formed from a crosslinked product of a first rubber composition containing silicone rubber, The intermediate layer 2b contains a crosslinked binder component containing an unsaturated carboxylic acid metal salt. The second rubber layer 2c is formed from a crosslinked product of a second rubber composition containing ethylene-α-olefin elastomer.

A rubber composition for a power-transmission belt includes: a polymer component including an ethylene-α-olefin elastomer; carbon black; and clay, in which the ethylene-α-olefin elastomer has a Mooney viscosity at 125° C. of 25 ML (1+4) 125° C. or less, the clay has a pH of 5.5 or higher, a total amount of the carbon black and the clay is 80 parts by mass to 180 parts by mass with respect to 100 parts by mass of the polymer component, and a mass ratio of the carbon black to the clay is clay / carbon black=0.2 / 1 to 1.2 / 1.

A transmission belt (100) for a roller conveyor having rollers, made of steel or plastic and having concave grooves, the belt comprising: - an elastomeric body (102) comprising a back portion (104) and a belly portion (106) formed by a single tooth, the outer surface of the elastomeric body having a convex shape configured to engage with the concave grooves of the rollers; - a set of tension cords (110) embedded in the body (102) between the back portion (104) and the belly portion (106) of the body; - a coating (112) disposed on the outer surface of the tooth, having the shape of the outer surface of the tooth and defining a coefficient of friction with the concave grooves of the rollers that is non-zero and less than or equal to 0.8.

A manufacturing process converts a standard flat belt conveyor belt into a new, positively driven, pitch differential belt. A strip of thermoplastic material having a physical characteristic, such as melting temperature, that differs from the physical characteristic of the thermoplastic material comprising the conveyor belt, is applied to the drive side of a commercially available conveyor belt and machined to create a plurality of teeth, or drive bars, of any desired geometry that is configured to engage with the with sprockets or drums of the drive mechanism on the conveyor. The strip and / or drive bars can also be made by additive manufacturing, such as by 3D printing. Two ends of the resulting belt segment are cut to length and spliced, preferably with finger joints, to make a continuous loop using an industry standard hot-plate vulcanizer with a custom fitting called an alignment mold. The melting temperature of the belt and the strip / teeth are chosen to be far enough apart so that the belt may be spliced without melting the teeth. The alignment mold is a silicon pad that has recesses shaped to conform to the geometry / pitch of teeth so that the teeth retain their integrity and shape during the splicing process.

The invention relates to a method for producing a continuous belt (1) and to a continuous belt (1) with a belt body (2) which has a first main surface (3) and a second main surface (4). The first main surface (3) and the second main surface (4) of the belt body are connected together via lateral edges (5, 6), wherein a coating (7) is applied onto the first main surface (3) of the belt body (2), said first main surface lying opposite the inner face of the continuous belt (1) when the continuous belt (1) is completed, and the coating (7) forms the exterior of the continuous belt (1) in the completed state. A matrix which consists of at least one base material (8) and into which hard particles (9) are integrated, in particular particles with a Vickers hardness of over 500 [HV], preferably between 1400 [HV] and 10060 [HV], is applied onto the first main surface (3) of the belt body (2) as the coating (7), said coating (6) being applied preferably directly onto the first main surface (3) of the belt body (2).

In some embodiments, this disclosure provides compositions comprising 5 phr–30 phr of a PEDM terpolymer having 1–10 wt% diene, 13–40 wt% ethylene, and 15–85 wt% propylene, based on the weight of the PEDM terpolymer. The compositions further comprise 70 phr–95 phr of a terpolymer having an ethylene content, C3–C4, and C4 content different from the first polymer. 12 Ethylene-based copolymers of α-olefins and, unnecessarily, one or more dienes.

A mounting system capable of mounting objects to support structures is disclosed. The mounting system includes a wall mount including a display bracket configured to hold the object, a fixed support bracket couplable to a vertical support structure, and a linkage assembly. The linkage assembly has a low-profile stowed configuration in which the object is held in a raised position close to the support structure. The linkage assembly moves to another configuration to move the object. The object can be held in a lowered position. A biasing mechanism can facilitate convenient movement of the object.

The invention relates to a drive belt, in particular a V-belt or a multi-ribbed belt, with a base body made of a polymeric material with elastic properties, comprising a cover layer as the belt backing and a substructure with a power transmission zone, wherein the polymeric material with elastic properties is based on a cross-linked rubber compound, characterized in that the cross-linked rubber compound comprises up to 100 phr of a sustainable carbon-containing material (SCM) with a particle size of D97 < 15 µm as measured according to ISO 13320:2020. The drive belt according to the invention has improved sustainability, expressed by a reduced CO2 footprint, and at the same time a very good service life.

The invention provides a polyarylester rope structure conveying belt and a preparation method thereof, and belongs to the technical field of conveying belts. The polyarylester rope structure conveying belt comprises lower covering rubber, lower core layer rubber, a polyarylester rope, upper core layer rubber and upper covering rubber from bottom to top. The thickness ratio of the lower covering rubber to the lower core layer rubber to the polyarylester rope to the upper core layer rubber to the upper covering rubber is (2-5): (0.6-2): (1-2): (0.6-2): (4-8). By optimizing the raw material composition of the covering rubber and the core layer rubber, the tensile strength and the elongation at break of the conveying belt are remarkably improved, the abrasion loss is reduced, and the conveying belt has excellent bonding performance, mechanical performance and flame retardant performance; meanwhile, the special adhesive and polyarylester rope structure is adopted, so that the conveying belt has excellent adhesive property, mechanical property and flame retardant property, and has the advantages of high strength, light weight and low cost.

We provide toothed belts with high durability and jump resistance. [Solution] The back portion 1c has a core wire 4 embedded in it that extends along the circumferential direction of the belt, The inner circumferential surface of the back portion 1c is provided with a plurality of teeth 1a formed at intervals in the belt circumferential direction, It includes a back rubber layer 5 formed on the outer circumference side of the belt relative to the core wire 4, and a tooth rubber layer 3 formed on the inner circumference side of the belt relative to the core wire 4, In a toothed belt 1 in which a tooth cloth is laminated on the inner circumferential surface of the tooth rubber layer 3, A fluororesin-containing rubber layer formed from a crosslinked rubber composition containing fluororesin is laminated on the inner circumferential surface of the tooth cloth, and A resin film layer containing a thermoplastic resin is laminated on the inner circumferential surface of the fluororesin-containing rubber layer.

A method of manufacturing a joint in a toothed belt, the toothed belt comprising a first belt section 10 having a first end-edge and a second belt section 20 having a second end-edge, the sections hav

The utility model belongs to mechanical drive mechanism technical field provides a kind of synchronous belt and transmission mechanism, synchronous belt includes: belt shaft, it is annularly arranged, forms annular structure;Multiple belt teeth, it is sequentially arranged on belt shaft, and the tooth gap is formed between adjacent two belt teeth, and belt tooth is coaxially arranged with belt shaft, and multiple tooth gaps are formed between multiple belt teeth and the outer surface of belt shaft.The utility model is annularly arranged by belt shaft, forms a closed annular structure, so that synchronous belt can keep stable operating condition in transmission process, can avoid the transmission failure caused by the rupture or deformation of belt body.Belt tooth is coaxially arranged with belt shaft, can ensure the accurate engagement of belt tooth and pulley during operation, so that accurate power transmission can be realized, and skidding can be prevented.

To provide a toothed belt that is highly productive, economical, and has excellent resistance to tooth breakage. [Solution] A toothed belt 1 comprises a back portion 1c in which a core wire 5 extending along the circumferential direction of the belt is embedded, and a plurality of teeth 1a formed on the inner circumferential surface of the back portion 1c at intervals in the circumferential direction of the belt, the back rubber layer 6 forming the back portion 1c, a tooth rubber layer forming the teeth 1a, a tooth cloth formed on the surface of the teeth 1a, and an adhesive rubber layer interposed between the tooth rubber layer and the tooth cloth, wherein the adhesive rubber layer comprises a crosslinked product of a first rubber composition containing a first polymer component and silica. The first polymer component comprises a first ethylene-α-olefin elastomer, and the proportion of silica is 50 to 130 parts by mass per 100 parts by mass of the first polymer component. The tooth rubber layer and the back rubber layer 6 comprise a crosslinked product of a second rubber composition containing a second ethylene-α-olefin elastomer. The rubber hardness of the crosslinked product of the first rubber composition is greater than the rubber hardness of the crosslinked product of the second rubber composition.

The invention relates to a drive belt, in particular a V-belt or a multi-ribbed belt, with a base body made of a polymeric material with elastic properties, comprising a cover layer as the belt backing and a substructure with a power transmission zone, wherein the polymeric material with elastic properties is based on a cross-linked rubber compound, characterized in that the cross-linked rubber compound comprises up to 100 phr of a sustainable carbon-containing material (SCM) with a particle size of D97 < 15 µm as measured according to ISO 13320:2020. The drive belt according to the invention has improved sustainability, expressed by a reduced CO2 footprint, and at the same time a very good service life.