1841 results about "Toothed belt" patented technology

The invention discloses a double-finger double-driving translation clamping type flexible grip and a control method. The double-finger double-driving translation clamping type flexible grip comprises double servo motor systems, double motor end synchronous pulleys, double positioning sliding guide rail systems, double ball screw systems, double screw synchronous pulleys, double finger paws, a U-shaped main rack of the grip and a main rack cover plate, wherein the coordinating fetching action of two paws is realized by the control on two servo motors. A fetching method is characterized in that the double motors are used as power, double fingers are respectively fixedly arranged on two screw guide rail synchronous switching modules, through the rotation of two synchronous toothed belts between the double motor end synchronous pulleys and the ends of the double screw end synchronous pulleys, the rotation of the motor is converted into linear motion by a screw, so that the double fingers are translated respectively along two positioning sliding guide rails, and the translation switching on and off of the double paws along double guide rail surfaces can be realized. Due to the fact that the device is used for independently driving the corresponding paws to move by the double motors, so that the double fingers can more flexibly move, and different fetching speeds can be set for the double fingers, and the position precision is high.

A hybrid drive train for a motor vehicle which comprises an combustion engine, at least two electric machines, a multi-gear transmission with transmission input and output shafts, a shift actuator, at least one energy storage device and a control unit arranged such that the combustion engine and the rotor of the first electric machine are connected to the transmission input shaft, and the transmission output shaft is connected either permanently or via a gearwheel arrangement or a chain or toothed-belt drive mechanism to at least one wheel or to a differential of a first vehicle axle. The rotor of the second electric machine is connected either permanently or via a chain or toothed-belt drive mechanism, either to at least one wheel or to a differential of the first vehicle axle, or to at least one wheel or to a differential of a second vehicle axle.

The servo actuated robot manipulator for surgical operation has fingers in the most front end as well as finger circularly moving joint mechanism, arc guide rotating joint mechanism, inclined guide straight motion joint mechanism, the first small arm rotating joint mechanism, the second small arm rotating joint mechanism, large arm rotating joint mechanism, vertical position regulating mechanism and sync toothed belt wheel mechanism. The present invention is used mainly in micro wound surgical operation, eye operation, orthopaedics operation, etc., especially in blood vessel stitching and other microscopic surgical operations.

The invention discloses a two-degree-of-freedom robot wrist, which relates to a robot wrist and aims to solve the problems of complex structure, heavy weight, high control difficulty and low integration level existing in the conventional robot wrist. One of two input bases of a torque sensor is connected with a first driven bevel gear of a differential mechanism while the other is sleeved on a driven shaft of the differential mechanism; a support block is arranged on a bracket bottom plate of a support bracket; the differential mechanism is supported by the support block and two support arms of the support bracket; a driving frame is connected with the support bracket through a pre-tightening mechanism; first and second drivers are fixed on the driving frame and have opposite transmission directions; the first and second drivers are in transmission connection with first and second driving half shafts of the differential mechanism through first and second toothed belt transmission mechanisms; first and second position sensors are arranged on the first driving half shaft of the differential mechanism; and a tail end circuit board is fixedly arranged on an output base of the torque sensor. The robot wrist has the advantages of simple structure, light overall weight, easy control, high integration level and wrist pitching and deflection degrees of freedom.

A toothed-belt fastening, in particular for chin-straps of helmets, protective headgear and the like, comprises a base on which the toothed belt can be slidably engaged, a first and a second pawl which are mounted in an oscillating manner on the base and can in turn be engaged with a toothing of the belt. The first pawl forms a member for unidirectionally locking the toothed belt with respect to the base and is disengageable from the toothing so as to slacken the fastening, while the second pawl is engageable with the toothing so as to tension the fastening and is hinged on the base coaxially with the first pawl.

A supercharged motorcycle is disclosed and broadly includes a motorcycle and an air induction system. The supercharged motorcycle includes a case that partly houses a drive train of the motorcycle within a first case compartment and a wet belt drive of the air induction system within a second case compartment. The wet belt drive incorporates a toothed belt that enables a slip mechanism of the wet belt drive for protecting the motorcycle engine. The two adjacent compartments of the case fluidly communicate and are configured such that the wet belt drive can be compactly assembled onto the motorcycle.

The invention discloses a frog jump robot. A motor is used as a power element; devices such as an overrunning clutch, a gear toothed belt and the like are used as transmission mechanisms; a slide block can move on a guide rail under the drive of the motor through the transmission devices; and double legs of the robot stretch or retract under the drive of the slide block so as to finish jump motion. After the robot jumps, the double legs immediately retract to perform air posture adjustment, and the double legs are fully retracted by using self gravity potential and kinetic energy at the monument of landing to perform posture adjustment again. The energy utilization rate of the power element is improved, reclamation and reutilization of energy during jumping are realized, the flexibility of the robot is increased, and the jumping capability of the robot is promoted.

The invention discloses a high-speed preparation device of centrifugal electrostatic spinning nanometer twisted yarns. The high-speed preparation device mainly comprises a feed extrusion device, a motor, an electromagnetic heating coil, a bearing, a conical ring perforated electrode, a centrifugal rotating umbrella-type spray head, an air compressor, a cyclone vacuum generator, a roller receiving device, a high-voltage electrostatic generator, a synchronous toothed belt and a rack, wherein the motor drives the centrifugal rotating umbrella-type spray head to rotate at high speed; the electromagnetic heating coil is in non-contact connection with the centrifugal rotating umbrella-type spray head and is heated through radiation; the feed extrusion device is used for supplying feed to the centrifugal rotating umbrella-type spray head through a hole in the center of the centrifugal rotating umbrella-type spray head; the conical ring perforated electrode is fixed at the middle position of the center of the rack. The high-speed preparation device is combined with an electrostatic spinning technology and a centrifugal spinning technology; a rotating airflow is formed in a chamber by the combined use of the air compressor and the cyclone vacuum generator to guide fiber to form twisted yarns, so that the orientation controllability of nanofiber is achieved; conditions are created for industrial application of the nanofiber in the specific industries, such as water treatment.

A vacuum conveyor has a toothed belt with opposed sets of teeth along the sides of the belt inner surface; the belt is driven by a synchronous motor giving very precise delivery, the motor driving a toothed roll located in the conveyor centre section within the loop of the belt. The oncoming and offgoing belt guidance rolls have replaceable bearing inserts; two rolls control the wrap and load transfer between the belt and the driving roll; the top reach of the perforated belt slides on plastic vacuum blocks, having through air passages in corresponding patterned relation at the surfaces of the blocks, bounded by air-sealing shoulder portions of the blocks.

In a power transmission belt having a belt body made of a rubber composition, a belt cloth is provided at a friction force acting part of the belt body. The belt cloth is subjected to dipping treatment in a treatment solution obtained by dissolving into a solution a rubber composition in which uncrosslinked ethylene-α-olefin elastomer is mixed with a metal salt of unsaturated carboxylic acid and an organic peroxide as a crosslinking agent.

The invention provides a synchronous body paper and face paper feeding device and a control method. The device is characterized in that a face paper front lay gauge, a face paper pressing wheel, a face paper side lay gauge, a body paper front lay gauge and a body paper lifting plate assembly are configured with cam mechanisms respectively and are driven by the respective cam mechanisms; a face paper motor drives a low-speed face paper feeding belt assembly, a body paper induced draft air distribution valve, a face paper side pull gauge and cam mechanisms thereof through a synchronous toothed belt or a roller chain; a paper injection driving roller, an upper pressing driving roller, a paper feeding driving roller, a high-speed face paper injection wheel and a high-speed face paper conveying belt assembly are driven by a body paper motor at the same speed. The distance between the face paper front lay gauge and a laminating roller is equal to the distance between the body paper front lay gauge and the laminating roller, so that body paper and face paper reach a converging point at the same time, and surface lamination is completed. The functions of synchronously feeding the body paper and the face paper at a high speed and automatically aligning the body paper with the face paper can be realized, the use of the motors is reduced, and the phenomenon that the motors are frequently started is avoided. The working efficiency is improved, and the manufacturing cost is reduced.

The invention belongs to the technical field of medical instruments, and relates to a rehabilitation training system, in particular to an upper limb rehabilitation training system with active-passive modes. The technical scheme includes that the upper limb rehabilitation training system with the active-passive modes comprises a handle, a mechanical arm, a spindle, an encoder, a computer, a display, a motor, a clutch, a coupler, a belt pulley, a belt pulley shaft, a synchronous toothed belt and a rehabilitation device base. Compared with equipment in the past, the upper limb rehabilitation training system has the advantages that active acting force is provided for a patient needing rehabilitation, the mechanical arm can drive an arm of the patient to perform rehabilitation training in the active mode so as to achieve better rehabilitation training effects, and a threshold safety module is arranged inside the computer so that safety of the patient in rehabilitation training can be enhanced.

An endless power transmission belt having a internal lubricating agent-containing fabric element extending along at least the pulley-engaging, power-transmitting surface of the belt, as well as processes for manufacturing same. More particularly, an endless toothed belt having a wear-resistant fabric cover element that comprises at least one internal lubricating agent in the form of one or more clusters within at least a portion of the total thickness of the fabric element.

A toothed belt includes a body, at least one tooth formed of the body, a jacket disposed along a peripheral surface of the at least one tooth and having a compressed thickness in the range from 0.5 mm to about 0.8 mm, and at least one cord embedded in the body and having a diameter. The at least one cord and said jacket have a ratio of said cord diameter to said jacket thickness of less than 1.8, and said cord diameter and said jacket thickness describe an optical belt PLD of about 1.2 mm or less.

An HNBR-based toothed rubber belt (10) with a glass, carbon and/or aramid cord reinforcement (5) has a modified tooth covering (6) made of polyamide 6.6 fabric having weft threads (64) entirely or partly replaced in the peripheral/longitudinal direction of the belt by yarns made of polyether ether ketone (PEEK), polyimide (PI) and/or meta-aramid (M-A) or modified with PEEK, PI and/or M-A.

A retrofit blind assembly for a doorlight. The assembly includes a frame, a transparent panel, and a blind snap-fitted to the frame. The blind actuator includes gears and a toothed belt for positive, non-slip actuation. A pair of blind guides are mounted on the opposite sides of the frame to receive and guide the opposite ends of the blind. The mounting system includes a pair of brackets that can be secured between the doorlight and the door and upon which the assembly can be hung. The mounting system also includes a pair of movable catches on the lower portion of the frame snap that can be locked behind the doorlight to secure the lower end of the assembly.

An electric power steering apparatus comprises an electric motor for producing a steering assist force, and a speed reduction mechanism for decelerating the rotation of an output shaft in the electric motor. The speed reduction mechanism comprises an input pulley driven by the electric motor, an output pulley connected to a steering shaft, and a belt for connecting the input pulley and the output pulley to each other. The belt comprises a helical toothed belt. The input pulley and the output pulley respectively include helical toothed pulleys meshed with the helical toothed belt.

The invention provides a cloth pressing device of a spreading machine and belongs to the technical field of garment processing machinery. The spreading machine comprises a spreading table, a cross beam, a pair of toothed belt edge stripping mechanisms and front and rear cloth spreading rollers, wherein a rack is arranged on the spreading table, upper and lower cloth guiding roller, a cloth guiding roller, a large cloth spreading roller and a lower cloth spreading roller are arranged on the rack. The cloth pressing device is characterized by comprising a large cloth spreading roller cloth pressing mechanism, wherein the large cloth spreading roller cloth pressing mechanism comprises a pair of cloth pressing roller carriers, a large cloth spreading roller front cloth pressing roller, a large cloth spreading roller upper cloth pressing roller and a large cloth spreading roller rear cloth pressing roller, the right end of one pair of cloth pressing roller carriers is pivoted on the rack, a handle is fixed in the middle of one pair of cloth pressing roller carriers, one opposite side of one end of one pair of cloth pressing roller carriers is connected with the upper end of a front pressing roller arm, one opposite side of the right end of one pair of cloth pressing roller carriers is connected with the upper end of a rear pressing roller arm, a large cloth spreading roller front cloth pressing roller is arranged at the lower end of the front pressing roller arm, the large cloth spreading roller upper cloth pressing roller is arranged between one pair of cloth pressing roller carriers, and the large cloth spreading roller rear cloth pressing roller is fixed at the lower end of the rear pressing roller arm. The cloth pressing device creates edge stripping conditions for a toothed belt edge stripping mechanism and ensures the cloth pulling and spreading effects.

A telescopic seating system generally includes an innermost lower riser assembly and successive outer elevated riser assemblies. Each elevated riser assembly includes a dual deck surface and a telescopic leg assembly. Each elevated riser assembly supports a toothed belt drive system which provides the interface between each adjacent elevated riser assembly and the motive force to extend and retract the riser system. In operation, electric motors of the toothed belt drive system on each elevated riser assembly are driven by a controller to extend and retract the telescopic seating system between a fully extended position, a half-deployed position and a storage position. The half-deployed position utilizes the dual deck surface to provide half the seating capacity of each riser at twice the rise between each seating row to thereby accommodate particular venues.

A bolt tightening device includes bolt tightening mechanisms, a torque input unit, a toothed belt and torque transmission units. The torque transmission units are provided with toothed pulleys and are integrated with the bolt tightening mechanisms. A toothed pulley is fixed to the torque input unit, and drivably connected to all the toothed pulleys of the plural torque input units by the single toothed belt. Torque input to the torque input unit is transmitted to the bolt tightening mechanisms by the toothed belt, and used to simultaneously tighten, for example, seven bolts. Because, torque can be simultaneously transmitted to plural bolt tightening mechanisms using a single belt, the number of components is reduced and the size, weight and cost are reduced and ease of use is improved.

A toothed belt connector for making an endless belt has two leaves, adapted to be connected to each other by knuckles along one or more teeth. Each knuckle has at least one hole extending through tooth portions so that when the holes are in registry, a pin can be extended through the holes to connect the leaves at the teeth. The leaves can be adjoined to the ends of a belt to make the belt endless. The tip end of each knuckle can be beveled or it can have a stepped finger that fits into a cutout on the opposite leaf to keep the end of the knuckle from protruding as the belt wraps around a sprocket.

Endless power transmission belts and processes for their manufacture, having power transmitting surfaces comprising a wear resistant composite, which belts exhibit improved abrasion- or wear resistance, reduced noise, reduced frictional heat generation, and improved dimensional stability compared to known belt constructions, as well as processes for manufacturing same. More particularly, an endless toothed belt having an abrasion- and noise resistant cover element, which comprises at least one friction-modifying constituent and at least one binder constituent.

The invention relates to the field of 3D printing spreading and particularly relates to 3D printing equipment spreading device capable of automatically sweeping. The device comprises a feeding hole, a stock bin, a spiral conveyer, a blanking hole, a scraping plate, linear guide rails, sweeping hairbrushes, gears, a toothed belt and a working box. In a printing process, the blanking hole and the scraping plate of a spreader are swept when reaching a certain number of layers or time, so that the condition that the blanking hole at the bottom of the spreader is greatly reduced, the uniformity of each blanking quantity is guaranteed, and therefore, 3D printing equipment can stably work for a long time and is relatively high in efficiency and relatively long in service life; the 3D printing equipment spreading device has important significance in the application of a 3D printing technique and the popularization of 3D equipment.