1067 results about "Friction drive" patented technology

A wind turbine has multiple blades (10) that are mounted on a shaft (19) with a ring around a circumference of the blades. There are tires (18) that are arranged to be in contact or out of contact with the ring. The tires draw generators when the tires are in contact with the ring and the ring is rotating. A controller monitors the wind conditions and controls the turbine to produce electricity or other-energy output or to shut down if the wind falls below a predetermined level.

The invention is in use for detecting solid impurity of liquid in bottle full automatically. The method includes procedures: driving arrangement accelerates rotation of bottle body moving in uniform speed to a value of rotation setup; then, braking the bottle body rapidly, transmitting light beam to the bottle body, and taking picture for the bottle body by camera synchronous forwarded with the bottle body; analyzing signal collected by camera, and when abnormal instance occurs, eliminating signal is generated. The system includes detection worktable, strap friction drive device, detection device, and analyzing and controlling module etc. Strap friction drive device includes driving wheel, driven wheel, follow up pulley and friction belt. Comparing with prior art, the invention overcomes disadvantages of slow detection speed, complex system structure, low quality of detection, possessing advantages of safety and high consistency of detection.

The invention discloses a toy cleaning device, which comprises a working box and legs fixed on the bottom of the working box. A water outlet pipe is communicated with the top of the working box. Both sides of the working box are symmetrically provided with first rotating shafts. The invention has a simple structure. The toy to be cleaned is placed on the conveyor belt, and the toy is brought into the working box by the conveyor belt, and the toy is cleaned by using the bristles. The cylinder drives the L-shaped rod to rotate, and the toy is turned over to clean all sides of the toy. At the same time, the first magnet on the friction wheel rotates with it, and the first magnet and the second magnet attract each other, and the second spring Under the action of the fan, the rack can move back and forth, the rack meshes with the sector gear, drives the nozzle to swing, rinses the toy from all angles, and improves the cleaning effect, and the fan can speed up the evaporation of residual water in the toy to prevent bacteria from breeding again.

A camera module and a portable terminal comprising the camera module, in which an auto-focus (AF) function and a zoom function are assembled by using a friction drive-type drive source such as a piezoelectric element, which are constructed to be small in size and light in weight, and which are resistant to chips produced through friction contact between the piezoelectric element and driven member. The camera module has a lens holding section for holding at least one or more optical lenses and provided with a shaft hole portion, a shaft member inserted in the shaft hole portion and installed substantially in parallel with the optical axis, a piezoelectric element having at an end an operation portion that is in contact with the shaft member and is placed in the vicinity of the shaft hole portion of the lens holding section, and an adhesive member provided in the vicinity of the shaft hole portion. As a result, the camera module is small in size and light in weight, and chips produced through frictional contact between the piezoelectric element and the driven member are prevented from scattering by the adhesive member.

A friction drive device includes a first roller with a support part, a second roller, and a cam member to support them. The second roller receives press force from the first roller at a contact point of them so as to transmit mechanical power therebetween. The cam member has a cam formed with a cam slope on which the support part of the first roller is pressed by reaction torque from the second roller that is caused by transmission torque applied from the first roller. The cam slope is formed to have an angle with respect a tangent line at the contact point so that the first roller is pressed by reaction force of the cam to apply the press force proportional to the transmission torque to the second roller.

In a wheel for use in an omni-directional vehicle, gravel and other foreign matters are prevented from being trapped between free rollers forming the wheel, and traveling vibrations and noises are minimized at the same time. The wheel includes an annular member and a plurality of free rollers each rotatably supported by the annular member around a corresponding tangential line of the annular member, and a gap member is placed between each adjacent pair of the free rollers to fill a gap defined between the free rollers.

The invention discloses a storage winch with a function of measuring tension and length of a cable. The storage winch comprises a cable storage cylinder, a support device, a cable guide device, a driving component, a cable arranging mechanism, a warning device, a power transmission communication interface connection device, a lightning attractor, a cable tension measuring device and a cable length measuring device. For cable length measurement, two lines of independent but related proximity switches are adopted for improving work reliability and measurement accuracy; for tension measurement, a pressure sensor is adopted, and force application pin rolls at two pin joint support seats between a cable guide support and a cable arranging sliding block are used for transmitting tension of the cable. The storage winch can be matched with a friction drive winch, is applicable to storage of a large volume of cables and arrangement of cables in order based on special support cables, has functions of measuring tension and laying length of the cable, protecting the cable and guaranteeing the operation safety, and meets special task requirements on large load, good safety, reliable operation, long cable laying distance, and the like.

The vehicle delivery device of the present invention includes a plurality of vehicles and a vehicle running line. Each vehicle includes: a vehicle floor having a main transmission friction surface, the friction surface being a side formed on or close to at least one of the left and right sides of the vehicle floor, which is parallel to the direction of travel of the vehicle; A rod extending along the centerline of the vehicle floor, the centerline being parallel to the direction of travel, the rod has a side forming a friction surface for an auxiliary drive. The running line includes a main conveyor line as a linear conveyor line or an auxiliary conveyor line. The main conveyor line is equipped with a transmission device used as a main driving force. drive wheel. The auxiliary conveying line is equipped with a plurality of transmission devices used as auxiliary driving force, and each transmission device includes a friction drive wheel for pressure contact with the friction surface of the vehicle. The transmissions are arranged at intervals in the direction of travel.

A friction drive for an agricultural planter has a linear actuator, which may be hydraulically or pneumatically controlled, to selectively raise or lower a drive wheel into frictional engagement with a carrying wheel. A valve network is fluidly associated with the linear actuator and allows the operator or pilot to variably define the degree of frictional engagement. This allows the operator to vary the amount of frictional engagement of the drive wheel and the carrying wheel, the output of which is used by a material dispensing system to deposited planting material onto a planting surface.

The invention relates to a power-and-free roller conveyor belonging to the conveyor field. Mounting plates are arranged by interval on both the inner side and the outer side of the upper end of a frame; rollers are arranged parallel on the mounting plates of the inner and outer sides and all the axes of rollers are on the same plane; drive rollers are rotationally connected on the mounting plates of at least one side and the drive rollers are arranged below the rollers of both head part and tail part on the conveying direction; a first depression is arranged on the outer walls of the drive rollers, driven rollers are rotationally connected with the frame and a second depression is arranged on the outer walls of the driven rollers. An annular friction conveying-belt is respectively embedded inside the first depression and second depression. The friction conveying-belt is extended from the first depression to contact the outer walls of rollers and drive rollers; a driving apparatus is arranged on the frame and a driving wheel matching with the driven rollers is arranged on an output shaft of the driving apparatus; and a friction driving belt is respectively arranged around the driven rollers and drive rollers. The roller conveyor can largely reduce the investment cost for equipment and enhance the use environment of equipment.

The invention discloses a trolley flexible transport system and an application method thereof. A plurality of trolleys are arranged on an orbit which is arranged in advance; a rotary table is arranged on the bent part of the orbit; a friction drive device drives the trolleys to run and the rotary table to rotate; and bilateral combined lifting devices are arranged on the trolleys, so that a full floor type assembly line that a workpiece only needs to be loaded and positioned at one time, and the height can be controlled through lifting is constructed. The trolleys for assembly complete omnibearing assembly operation of the workpieces of an automobile, the workpieces are loaded and positioned at one time, and the conversion between load change and position reference in the prior art is avoided; and assembly quality and the working efficiency are improved. A floor running mode is adopted in the trolleys serving as main equipment and the rotary table and completely replaces a suspension transportation mode in the prior art, so that a large number of steel structure lifting devices are reduced, the hoist load of plants is greatly reduced, engineering investment is reduced, and the construction period is shortened. The layout design of the production line is more flexible and practical.

A material handling system includes a composite beam including an upper rail and a lower track connected through a plurality of spaced apart transverse members. A trolley includes an upper set of wheels and a lower set of wheels. The lower set of wheels is received within two parallel channels defined by the lower track. A drive tube is positioned between the upper rail and the lower track such that the upper set of wheels are in frictional engagement with the drive tube. A drive system is configured to rotate the drive tube.

The invention discloses an elevator speed limiter without a safety rope, and belongs to the technical field of elevator safety protection devices. The elevator speed limiter comprises a box body, a speed limiter wheel, a ratchet wheel clutch mechanism, a centrifugal hammer mechanism and a centrifugal hammer resetting mechanism, wherein the box body is fixed on an elevator cage; the speed limiter wheel is arranged in the middle of a speed limiter wheel shaft; a signal acquirer and a safety tongs actuation mechanism are respectively positioned in the cavity of the box body; safety tongs are matched with a well guide rail at a position corresponding to the lower side of the box body; the ratchet wheel clutch mechanism is arranged on the speed limiter wheel and is matched with the safety tongs actuation mechanism; the centrifugal hammer mechanism is arranged on the speed limiter wheel and corresponds to the ratchet wheel clutch mechanism; the centrifugal hammer resetting mechanism is arranged on the speed limiter wheel and is connected with the centrifugal hammer mechanism; the elevator speed limiter is characterized by further comprising a speed limiter wheel friction driving mechanism which is connected with the speed limiter wheel and is matched with the surface of one side, which faces the box body, of the well guide rail. The elevator cage is protected, and long-time and stable motion of the speed limiter wheel is guaranteed; the actuation effect of the ratchet wheel clutch mechanism on the safety tongs actuation mechanism is guaranteed; when the elevator cage operates at overspeed, the safety tongs actuation mechanism can be used for reliably operating the safety tongs, so that the safety is guaranteed.

The invention provides a precise piezoelectric stick-slip linear motor with an asymmetric structure and a driving method thereof, and aims at solving the problem that mechanical output characteristics of an existing piezoelectric stick-slip linear motor are limited due to the fact that comprehensive regulation of friction is difficult and other problems. The precise piezoelectric stick-slip linear motor is composed of a fixed support, a loading mechanism, a stator and a rotor, and lateral displacement of the stator is produced by means of an asymmetric flexible hinge structure, so that friction driving force is increased, and friction resistance is reduced; meanwhile, a friction regulation wave is complexly superimposed in a sawtooth driving wave in the rapid deformation stage of the stator, therefore, the friction resistance between the stator and the rotor in the rapid deformation stage is reduced, comprehensive regulation of the friction is achieved, and the mechanical output characteristics of the piezoelectric stick-slip linear motor are significantly improved. The precise piezoelectric stick-slip linear motor with the asymmetric structure has the advantages of being simple in structure, high in precision, large in stroke and the like and has good application prospects in the fields of micro-nano precision driving and positioning of aerospace, optical precision instruments, semiconductor machining and the like.

In a frictional drive vehicle, a load acting on the vehicle such as the weight of a rider is converted into a force that urges two frictionally engaging parts (3L, 3R, 25) toward each other. Thereby, the contact pressure between the two frictionally engaging parts is maintained at an optimum level under all conditions. A weight of a rider may be transmitted to a drive member that frictionally engages a main wheel via a four-link parallel link mechanism (40, 50).

The invention discloses a stepless speed change device of circularly arranged cone pulleys, comprising a driven shaft and a driving shaft arranged around the driven shaft. The driven shaft is provided with a columnar friction pulley capable of axially moving, which is connected with a position control device; each driving shaft is provided with a conical friction pulley of which the inner conical face contacts with the columnar face of the columnar friction pulley in parallel to form a friction driving face. The stepless speed change device drives through the friction driving face between the conical friction pulley and the columnar friction pulley and can drive relatively high torque in a use rotation speed range. When position of the columnar friction pulley is in stepless change, drive ratio between the conical friction pulley and the columnar friction pulley will be also in corresponding stepless change so as to realize stepless speed change. The stepless speed change device has advantages of simple and compact structure, reliable property, low cost and so on.

An auxiliary, removable, modular power drive unit has a pivot point that can be attached to any bicycle or vehicle by way of a quick release clamp system. The power for the drive system may be derived from an internal combustion engine or electric motor. The power developed by the engine or motor is delivered to the rear wheel of a bicycle by a friction drive wheel that presses directly onto the tire of the bicycle. The power unit may utilize a clamp joined to an integrated fuel cell by a pivot point, causing the fuel cell to act as a swing arm and a motor mount. This enables the fuel cell to move up and down to compensate for different tire sizes, variations in road conditions, or movement of a suspension system of the bicycle due to imperfections in terrain.