339results about "Driving belts" patented technology

The present invention pertains to a toothed belt provided with a back section in which a core wire extending in the circumferential direction of the belt is embedded, and two or more tooth sections formed on the inner circumferential surface of the back section at intervals in the circumferential direction of the belt, the toothed belt includes a back rubber layer formed on the outer circumferential side of the belt with respect to the core wire, and a first rubber layer and a second rubber layer formed on the inner circumferential side of the belt with respect to the core wire, the back portion includes the back rubber layer, the elastic modulus of the first rubber layer is greater than the elastic modulus of the second rubber layer, and the elastic modulus of the second rubber layer is greater than the elastic modulus of the first rubber layer. The first rubber layer is formed from a first cross-linked rubber composition containing a first rubber component and first short fibers, the ratio of the first short fibers being 5-60 parts by mass per 100 parts by mass of the first rubber component, and the first short fibers being oriented in the longitudinal direction of the belt along the outlines of the teeth. The core wire includes a high elastic modulus fiber, and the tooth portion includes the first rubber layer and the second rubber layer interposed between the first rubber layer and the core wire.

The invention relates to a transmission belt (10) comprising a body provided with at least one elastomer-based tooth (B), said at least one tooth comprising: - an ethylene-propylene-diene monomer in a proportion of between 85 and 100 parts, per 100 parts of elastomer; - natural rubber in a proportion at most equal to 15 parts; - and regenerated carbon black in a proportion of between 20 and 70 parts.

The invention discloses a high-torque high-flexibility transmission belt which is composed of an outer rubber layer, a middle reinforcing layer and an inner rubber layer, the outer rubber layer comprises, by weight, 60-80 parts of nitrile rubber, 20-40 parts of polyurethane, 1-2 parts of an antioxidant and 5-15 parts of a reinforcing agent, and the reinforcing agent comprises sulfonated cellulose nanowhiskers, lignosulfonate and graphene oxide; the middle reinforcing layer comprises 50-80 parts of carbon fibers and 20-40 parts of aramid fibers; the inner rubber layer comprises 70-90 parts of natural rubber and 30-50 parts of butadiene rubber; the preparation method comprises the following steps: mixing components of the outer rubber layer to obtain outer rubber; mixing the components of the inner rubber layer to obtain inner rubber; the components of the middle reinforcing layer are woven into plain weave fabric; the plain weave fabric is pressed on the inner-layer rubber, the outer-layer rubber covers the plain weave fabric, a belt blank is obtained through hot pressing, the belt blank is cooled and shaped, and the transmission belt prepared from the components through the method has high torque and high flexibility.

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.

The present invention relates to a toothed belt including: a back portion; a tension member embedded in the back portion in a belt longitudinal direction and including a twisted cord including a steel fiber; a plurality of belt teeth formed on an inner peripheral side of the back portion along the belt longitudinal direction; and a cover layer provided between the tension member and a belt tooth bottom formed between the belt teeth, in which the cover layer has a thickness in a range of 0.2 mm to 1.0 mm, and the back portion, the belt teeth, and the cover layer are integrally formed of a thermoplastic elastomer.

The invention relates to an endless belt (10) with at least two cover plates (11) made of thermoplastic elastomer and at least one fabric tensile carrier (12) arranged between the two cover plates (11), the fabric tensile carrier comprising one or more polyolefin yarns, wherein the endless belt (10) has at least two longitudinal ends (13) which are connected to each other at a connection point (14) by a permanent (non-removable) connection such as an overlap or hook connection (15) and / or by at least one mechanical (removable) connecting device (16) at the longitudinal ends (13) such as a hook or screw connection, wherein the connection point (14) comprises at least one hot melt adhesive material based on thermoplastic elastomer and / or one-component adhesive material based on polyurethane, which reinforces the non-removable connection (15) of the two longitudinal ends (13) and / or additionally bonds the mechanical connecting device (16) to the longitudinal ends (13) in a material-bonded manner.

To provide a power transmission mechanism and a power transmission system by a belt capable of flexibly coping with a change of a route for transmitting power, reducing a bending radius, and reducing a production cost.SOLUTION: The guide part 11 is slender, curved or bendable, and has a guide hole 11a continuously extending from one end to the other end. The moving part 12 has a slender and flexible belt 22 inserted into the guide hole 11a, and is arranged so as to be slidingly movable to the guide part 11 on the inside of the guide hole 11a in the extending direction of the guide part 11 even when the guide part 11 is curved or bent.SELECTED DRAWING: Figure 1

A conveyor, power transmission or machine belt (1) which is open ended and has two end edges (6, 7) and a longitudinal length L in a longitudinal direction, comprising: a) two parallel lateral edges (1a, 1b) each extending in the longitudinal direction and separated from each other by a transverse width (W); b) a first fabric layer (2); c) a first coating layer (3); and optionally d) one or more through holes (5) through the overall thickness (T) of the belt, each of the through holes (5) being formed by a hole edge (5a), characterized in that i) the first fabric layer (2) comprises fibers or filaments of a thermoplastic and / or the first coating layer (3) comprises a thermoplastic or a thermoplastic elastomer; and ii) the lateral edges (1a, 1b) are ultrasonic or laser cuts and / or the optional hole edges (5a) are laser cuts. The belt or band has melt sealed edges, can be made into a loop by conventional end joining, and can be used in environments where lint is produced, such as a spool belt.

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 belt includes: a belt main body; at least one energizing core cord containing a core wire having electrical conductivity; and at least one reinforcing core cord having an electrical resistance per unit length being greater than that of the energizing core cord, wherein the belt main body has at least one belt hole which penetrates the belt main body in a thickness direction, the energizing core cord and the reinforcing core cord are embedded in the belt main body along a length direction of the belt main body to be spaced apart in a width direction of the belt main body, and each distance between the energizing core cord and a periphery of the belt hole is no less than 0.5 mm.

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.)

A toothed belt has a back portion in which a core wire is embedded; and a belt tooth provided on the inner peripheral side of the back portion and meshing with a pulley groove of a toothed pulley, in which the tooth crest compression ratio Y (%) of the belt tooth calculated by formula (1) is-2 < = Y < = 10, and the void ratio X (%) of the belt tooth in the tooth width direction calculated by formula (2) is-30 < = X < = 0. Y (%) = ((belt tooth height Hb-pulley tooth groove bottom depth Hp) / belt tooth height Hb) * 100 (1) X (%) = ((pulley tooth width [gamma]-pulley tooth width [beta]) / pulley tooth width [gamma]) * 100 (2)

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.

The invention provides a conveying belt and a power transmission belt, in which the conveying belt does not harden even in a low-temperature environment of-30 DEG C or less, the possibility of damage to a motor or a pulley of a conveying device can be reduced, and a conveyed object can be stably conveyed. The power transmission belt can reduce the possibility that a motor or a belt wheel of power equipment is damaged. The conveying belt (10) is an electrically conductive conveying belt (10) and has a belt body (12) made of a thermoplastic resin having a hardness of 85 or less in accordance with a Type A durometer specified in JIS K 7311 at-30 DEG C. The belt body (12) has a hardness of 85 or less in accordance with the Japan Industrial Standard JIS K 7311. The conveying belt (10) does not harden even in a low-temperature environment of-30 DEG C or below, the possibility of damage to a motor or a pulley of the conveying equipment can be reduced, and the conveyed object can be stably conveyed.

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 application provides a synchronous belt with a built-in sensor, comprising: an elastic material layer and a built-in circuit, wherein the elastic material layer is arranged on the surface of the synchronous belt tooth, and is used for fixing and protecting the built-in circuit; the built-in circuit comprises a sensor and a signal transmitting module; the sensor is arranged on the synchronous belt tooth, and is communicatively connected with the signal transmitting module; and the signal transmitting module is used for transmitting a first signal collected by the sensor to the outside of the synchronous belt. The synchronous belt can collect the stress conditions of each synchronous belt tooth in the running process of the synchronous belt in real time and accurately, and transmit the real-time signal collected by the sensor to the outside of the synchronous belt through the signal transmitting module, so that an external adjusting mechanism can adjust the running parameters of the synchronous belt, such as pre-tightening force, running speed and power transmission, according to the real-time signal collected by the sensor, and the technical requirement of intelligent and accurate control of the synchronous belt is met.

Transmission belt (10) comprising a body having at least one elastomer-based tooth (B), said at least one tooth comprising: - ethylene-propylene-diene monomer in a proportion of between 85 and 100 parts per 100 parts of elastomer; - natural rubber in a proportion not exceeding 10 parts; - reclaimed carbon black in a proportion of between 20 and 70 parts. Figure for the abbreviation: Figure 1

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.

The present invention relates to a belt (100) for a winding device (200) for producing a lap roll (910) when winding a lap (901) onto a sleeve-like core (920), the belt (100) being designed as an endless belt and being driven in a circulating manner. The belt (100) has a thickness (103) of between 1.2 mm and 2.2 mm, a transport layer (110), and a winding layer (120). The transport layer (110) can be driven by rollers (201, 202, 204, 205) by way of frictional engagement, and the winding layer (120) can wind a lap (901) onto a sleeve-like core (920).

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.