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152results about How to "Smooth power transmission" patented technology

Contactless power transfer system and control method thereof

A contactless power transfer system, including a coil configured to supply or receive power contactlessly via magnetic coupling, a bridge circuit having two direct current (DC) terminals and two alternating current (AC) terminals, and a smoothing capacitor connected between the DC terminals. A load is connectable to either end of the smoothing capacitor. One of the AC terminals is connected to one end of the coil via a first capacitor. The other of the AC terminals is connected to the other end of the coil. The bridge circuit includes two serially-connected circuits each having upper and lower arms, each arm having a semiconductor switch and a diode in reverse parallel connection. A second capacitor is connected in parallel to the semiconductor switch of an upper arm, or of a lower arm, or to two semiconductor switches respectively of an upper arm and of a lower arms, of the bridge circuit.
Owner:FUJI ELECTRIC CO LTD

Coaxial drive and control structure for coaxial contrarotation rotor helicopter

ActiveCN102658865AAvoid High Stress StructuresGuaranteed StrengthRotocraftDrive shaftControl arm
The invention relates to a coaxial drive and control structure for a coaxial contrarotation rotor helicopter. A spindle is a hollow fixed shaft, the fixed shaft is provided with an upper rotor hub and a lower rotor hub, the upper rotor hub and the lower rotor hub are connected by virtue of a gearing shaft, the middle section of the fixed shaft comprises multiple support pillars which are uniformly distributed, an upper inclinator support and a lower inclinator support are arranged in spaces among the support pillars, a total propeller pitch sliding sleeve is arranged inside the lower section of the fixed shaft, a primary variable-pitch control rod is arranged in the total propeller pitch sliding sleeve and is located and hinged by virtue of a ball shaft, the upper part of the primary variable-pitch control rod is connected with the upper inclinator support and the lower inclinator support, and the lower end of the primary variable-pitch control rod is respectively hinged with a variable-pitch rocker arms by virtue of two variable-pitch connecting rods; and an upper inclinator and a lower inclinator are arranged between the upper rotor hub and the lower rotor hub and are hinged with an upper rotor control arm and a lower rotor control arm by virtue of an upper rotor control rod and a lower rotor control rod. By adopting the coaxial drive and control structure for the coaxial contrarotation rotor helicopter disclosed by the invention, the defect that a rotation control assembly penetrates a rotating surface is eliminated, thus the coaxial contrarotation rotor helicopter can be provided with more upper rotors and more lower rotors, lifting power of the helicopter is improved, full differentiating control can be realized, and manufacturing and processing costs of the spindle also can be reduced.
Owner:李游

Multi-functional exercise apparatus

The present invention relates to a multi-functional exercise apparatus, and particularly to a multi-functional exercise apparatus which is safe and allows various exercises with different setups to be performed by means of a single apparatus. The present invention, relating to a multi-functional exercise apparatus provided so as to impart a sense of stability to a user when exercising while at the same time allowing various exercises with different setups to be performed by means of a single apparatus, comprises: a plate-shaped body (A) forming the floor surface and having a space in the interior thereof; fixed frames (100) fixedly disposed upwardly on both sides of the body (A); rotatable frames disposed upwardly on both sides of the body (A); handle parts (200) connected on one side of the rotatable frames and provided so as to be movable forwards and backwards; and a foot plate part rotatably provided on upper surface of the body (A) and connected to the other side of the rotatable frames. The multi-functional exercise apparatus according to the present invention imparts a sense of stability to a user as the rotatable frame comprises a plurality of linked sections and connects the handle parts and foot plate part, allowing the user to exercise by rotating not the entire rotatable frames but only the handle parts which are comparatively short compared to the rotatable frames. Furthermore, each linked section of the rotatable frames is rotatably attached to the handle part or to the side of the fixed frame, allowing the rotatable frames to stably transmit driving power from the handle parts (200) to the foot plate part and to be changed so as to allow various exercises with different setups to be performed.
Owner:JEONG YEONOK

Permanent magnetic variable-speed wind power generation apparatus with protection function

The invention discloses a permanent magnetic variable-speed wind power generation apparatus with a protection function. The permanent magnetic variable-speed wind power generation apparatus is characterized by comprising a shell; a first input rotor with a first shaft lever is arranged in the shell; the first shaft lever is provided with a protection mechanism; the protection mechanism comprises a brake block and a holder, wherein the brake block is arranged on the outer wall of the first shaft lever, and the holder is arranged corresponding to the brake block; the holder is fixedly arranged on the inner wall of the shell through a supporting seat; the holder is connected with an external handle through a brake cable. The permanent magnetic variable-speed wind power generation apparatus disclosed by the invention has the advantages that the rotation of fan blades can be controlled according to the need of the actual condition; the operation is comparatively convenient; meanwhile, the installation is flexible, and the overall safety performance is high.
Owner:诸暨和创电机科技有限公司

Multifunctional lace crochet machine

ActiveCN102154780ACollaborate closely with each otherSmooth power transmissionCrochetingSprocketEngineering
The invention mainly discloses a multifunctional lace crochet machine which comprises a power transmission device, a warp yarn mechanism, a weft yarn mechanism, a needle withdrawing mechanism, a needle blocking mechanism and a crossing mechanism. The needle blocking mechanism comprises a swing shaft, a blocking needle, a blocking needle drive arm and a needle blocking cam; one end of the needle blocking drive arm leans against the needle blocking cam driven by the power transmission device, and the other end of the needle blocking drive arm is fixedly connected with the swing shaft which rotates with the swing shaft of the needle blocking drive arm; and the swing shaft is fixedly connected with the blocking need which turns over inwards and outwards at the outer side of a needle bed with the swing shaft. The crossing mechanism comprises a weft yarn shaft, a swing arm, a shift fork and a floret chain transmission device, wherein the weft yarn shaft is mounted on the weft yarn mechanismand fixed with a weft yarn tube; the swing arm is fixedly sleeved on the weft yarn shaft; the shift form shifts the swing arm to swing; the floret chain transmission device supplies power to the shift fork; and a floret chainwheel in the floret chain transmission device is driven by the power transmission device. The multifunctional lace crochet machine disclosed by the invention is suitable for crocheting various flower forms, remarkably shortens the knitting time and has high production efficiency.
Owner:SHAOXING SANFANG MACHINERY

Wireless power transfer apparatus

A wireless power transfer apparatus includes a power transmission coil configured to transfer an electric power to a power receiver having a power receiving coil. The apparatus further includes: a housing that holds the power transmission coil and forms an interior in which the power receiver can be placed removably; a lid provided for opening and closing the interior; and an electromagnetic shield encompassing the power transmission coil and the power receiving coil at least when an electric power is transferred. An electric power is transferred with the lid of the housing being closed. This configuration suppresses a possibility that a part of the energy transmitted from the power transmission coil is not received by the power receiving coil, so as to be radiated and leak out during the power transfer.
Owner:HITACHI MAXELL ENERGY LTD

Mechanical guyed automatic transmission clutch execution mechanism

The invention relates to an automatic transmission clutch execution mechanism which comprises a shell, a drive mechanism and an angle transducer, wherein the drive mechanism comprises a motor, a worm wheel, a worm, a transition gear, a rack and a guy; the guy is positioned outside the shell; and one end of the guy is connected with one end of the rack. The mechanical guyed automatic transmission clutch execution mechanism has the advantages of remarkably stable power transmission, simple structure and is reliable in operation.
Owner:CHONGQING TSINGSHAN IND

Lie-down massager

A lie-down massager comprises a frame having an elongated top panel with an elongated opening, a rider below the top panel, a guide member movably engaged between the base frame and the rider to enable the rider to make a horizontal reciprocation relative to the frame, and a lifter moving vertically relative to the rider. A shaft is rotatably engaged to the rider and eccentrically connected to a cam so the shaft rotation generates an eccentric rotation of the cam defined by an inner disk, an outer ring, and ball bearings circularly provided between the inner and outer disks where an outer rim of the outer ring abuts to a bottom of the lifter so the shaft rotating further generates vertical reciprocation of the lifter relative to the rider by the eccentric rotation of the cam.
Owner:SHIM 30 SIMON K

System and method of integrating wind power and tidal energy

A system integrating a tidal power generation device and a wind power generation device and a method thereof are provided. The system includes a wind power generation device, a tidal power generation device and an integration device. The wind power generation device generates a first voltage, the tidal power generation device generates a second voltage, and the integration device integrates the first and the second voltages for a further use.
Owner:NAT CHENG KUNG UNIV

Torque-adjustable permanent magnetic variable-speed wind power generation apparatus

The invention discloses a torque-adjustable permanent magnetic variable-speed wind power generation apparatus, which comprises a power generation apparatus body, and is characterized in that the power generation apparatus body is provided with more than two drawing mechanisms arranged at an equal interval; each drawing mechanism comprises a motor; the output end of each motor is provided with a speed reducer; the output end of each speed reducer is provided with a connecting rod. The torque-adjustable permanent magnetic variable-speed wind power generation apparatus disclosed by the invention has the advantages that the transmission ratio is high, the efficiency is high, the rotational inertia is small, no friction is generated, starting is flexible, no noise is generated, lubrication is not needed, and the service life is long.
Owner:诸暨和创电机科技有限公司

Hybrid power transmission system with dual gear structure

The invention discloses a hybrid power transmission system with a dual gear structure. The system at least comprises an engine and a motor, the engine is fixedly connected to one end of a cut-off clutch, and the other end of the cut-off clutch is fixedly connected with the motor and an input shaft assembly of a gearbox; the system further comprises a gear mechanism cooperatively connected to the input shaft assembly and an output shaft assembly for transmitting power through the gear mechanism, the gear mechanism at least comprises a dual gear fixedly arranged on a first input shaft, and the dual gear is in transmission connection with an even-numbered driven gear set arranged on output shaft; the gear mechanism further includes an odd-numbered driving gear set fixedly arranged on a secondinput shaft, and the odd-numbered driving gear set is in transmission connection with an odd-numbered driven gear set disposed on the output shaft. The system mainly has the advantages that set gearsare reduced, the system structure is simplified, all the transmission gears can run in a hybrid power mode, and the fuel saving performance is good; at the same time, the engine can charge a storagebattery during running and idling.
Owner:吉泰车辆技术(苏州)有限公司

Cable support for electric power engineering cable trench

The invention discloses a cable support for an electric power engineering cable trench, and the cable support comprises: a pedestal, wherein the inner cavity of the pedestal is in a convex shape, andthe left and right ends of the front side of the pedestal are provided with a neck from the top to the bottom; three sliding blocks which are distributed and inserted into the inner cavity of the basefrom top to bottom; a supporting mechanism which is fixedly connected to the front sides of the sliding blocks; and a limiting mechanism which is detachably arranged at the top of the supporting mechanism. According to the invention, the placement distance between the cable ducts can be changed, the use is flexible, and mutual interference of power transmission between cables can be avoided to achieve the standard of stable power transmission, achieve the function of limiting the cable pipelines by tightly attaching the cable pipelines through the baffles, prevent the cable pipelines from being affected by external factors to shift, prevent the cables from being pulled to be damaged, and greatly meet the requirements of cable stringing.
Owner:湖南沪变电力技术有限公司

Subsea pressure booster

Subsea turbomachine for boosting the pressure of petroleum fluid flow from subsea petroleum productions wells or systems, comprising an electric motor and a compressor or pump driven by the electric motor, a fluid inlet and a fluid outlet, distinctive that the turbomachine comprises a pressure housing common for the electric motor or stator, and compressor, pump or rotor; a magnetic gear inside the common pressure housing for operative connection between the motor or stator and compressor, pump or rotor; and a partition inside the common pressure housing, arranged so as to separate a motor or stator compartment from a compressor, pump or rotor compartment.
Owner:AKER SOLUTIONS AS

Wireless power transmission device and toy rail car

The invention discloses a wireless power transmission device. The wireless power transmission device comprises a wireless power emission circuit and a wireless power receiving circuit, wherein the wireless power emission circuit comprises a power supply, a voltage reduction circuit, a first rectifier and filter circuit, a first voltage stabilizing circuit, an inverter circuit, a first compensating circuit and a power transmission coil which are connected sequentially; the wireless power receiving circuit comprises a receiving coil, a second compensating circuit, a second rectifier and filter circuit, a second voltage stabilizing circuit and a power adjusting circuit which are connected sequentially. The power transmission coil and the receiving coil adopt electromagnetic induction manners, so that the receiving coil induces change of a magnetic field of an emission coil to generate induced current. With the adoption of the wireless power transmission device, non-contact power transmission is realized, the power transmission process is kept stable, the transmission efficiency is high, and voltage and power at the load end are adjustable. The invention further provides a toy rail car capable of realizing wireless charging.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Transmission speed change device

InactiveCN102168745AOvercoming long delivery routesOvercome errorFriction gearingsRadianEngineering
The invention discloses a transmission speed change device, which comprises a reciprocating gear, a right-shift half gear, a left-shift half gear, and an input gear. The input gear is meshed with a right-shift input gear; the right-shift input gear and the right-shift half gear are fixed on a right-shift input shaft; the right-shift half gear is meshed with the reciprocating gear; the reciprocating gear is meshed with the left-shift half gear; the left-shift half gear and a left-shift input gear are fixed on a left-shift input shaft; the left-shift input gear is meshed with an idler wheel; and the idler wheel is meshed with the input gear. The right-shift half gear and the left-shift half gear are same in size, have a toothed radian of 180 DEG, have a phase difference of 180 DEG and are not simultaneously meshed with the reciprocating gear; the right-shift input gear and the left-shift input gear are same in type; and the input gear and the idle wheel are same in type. The transmission speed change device has the characteristics of stable operation, constant speed, uniform load and precise transmission, and is applicable to reciprocating movement of various machines.
Owner:乔海祥

Photovoltaic output ultra-short-term prediction method and system based on multi-source heterogeneous data

The invention discloses a photovoltaic output ultra-short-term prediction method and system based on multi-source heterogeneous data. The method comprises the steps of extracting cloud atlas featuresfrom a foundation cloud atlas through a deep neural network; extracting historical data features from the historical photovoltaic output data; splicing the cloud picture features and the historical data features; and finally, based on the spliced features, generating predicted photovoltaic output data through a one-dimensional convolutional network. According to the invention, the deep neural network and the ultra-short-term photovoltaic output prediction are combined, the advantages of the deep neural network in image feature extraction are utilized, the features are extracted from the foundation cloud atlas and then fused with the photovoltaic output historical data, and the photovoltaic output prediction is realized. The combination of the image and the historical data overcomes the defects of single input data and low information amount of the prediction model, and the deep neural network automatically extracts the cloud image features to overcome the defects of low information utilization rate and weak generalization ability of the artificially designed image features.
Owner:UNIV OF SCI & TECH BEIJING

Single-eccentric short transmission chain speed reducer

The invention discloses a single-eccentric short transmission chain speed reducer. The single-eccentric short transmission chain speed reducer comprises a fixed main body, a bearing sleeve, a power input shaft, a power output shaft and a duplicate gear; the power input shaft comprises positive axis parts at the two ends and an off-axis part in the middle, the axes of the positive axis parts and the off-axis part do not coincide, the duplicate gear is arranged on the off-axis part of the power input shaft in a sleeving mode through a third bearing, and the duplicate gear comprises a first external gear and a second external gear; a first inner gear ring is arranged on the portion, corresponding to the first external gear, of the fixed main body, a second inner gear ring is arranged on the portion, corresponding to the second external gear, of the power output shaft, the first external gear and the first inner gear ring are in internal meshed transmission, and the second external gear and the second inner gear ring are in internal meshed transmission. The single-eccentric short transmission chain speed reducer has the advantages of being simple in structure, short in transmission chain, high in transmission efficiency, stable in transmission, large in transmission moment, wide in speed reducing ratio range and the like.
Owner:XUCHANG UNIV

Compression and heat resistant practical wire cable

PendingCN112397239AFine textureHigh strength without mechanical impuritiesRubber insulatorsClimate change adaptationEngineeringPolyurethane elastomer
The invention discloses a compression and heat resistant practical wire cable, which comprises a fireproof lapped covering, a plurality of main wire cores and a reinforcing core tube are arranged in the fireproof lapped covering, the reinforcing core tube is arranged among the plurality of main wire cores, and a plurality of compression-resistant support frames are arranged among the plurality ofmain wire cores at equal intervals. The reinforcing core tube penetrates through the plurality of compression-resistant support frames to make contact with the inner wall of the fireproof lapped covering, the interior of the fireproof lapped covering is filled with heat-insulating and flame-retardant particles, and the exterior of the fireproof lapped covering is coated with a compression-resistant and flame-retardant layer. The plurality of compression-resistant support frames are arranged on the main wire cores and the reinforcing core tube, so that a good compression-resistant protection effect can be achieved on the wire cable, when the cable is extruded, a polyurethane elastomer material can achieve a protection effect on the main wire cores and the reinforcing core tube, and the problems of short circuit and the like caused by damage of an insulating layer can be avoided; and when the cable is subjected to external impact, an elastic connecting piece can play a role in buffering,so that the stress of the cable can be dispersed, and the flame-retardant outer sheath is prevented from being damaged.
Owner:安徽福日光电科技有限公司

Part grinding device

The invention relates to the technical field of gear machining, and discloses a part grinding device. The part grinding device comprises a rack, wherein a clamping mechanism and a grinding mechanism are arranged on the rack; the clamping mechanism comprises a supporting table fixedly connected to the rack, a clamping chuck is rotationally connected to the supporting table, and an auxiliary clamping assembly is detachably connected to the clamping chuck; the auxiliary clamping assembly comprises a clamping disc with a round hole formed in the middle part, two clamping screws are arranged on theclamping disc, a pressing disc is connected between the two clamping screws, a grinding hole is formed in the middle part of the pressing disc, and the clamping screws are in threaded connection withlocking nuts; and the grinding mechanism comprises a supporting assembly connected to the rack in a sliding mode and a grinding head rotationally connected to the supporting assembly. The part grinding device solves the problems that subsequent machining is affected due to the fact that a gear blank is prone to deform when a grinding device clamps and fixes the thin-thickness gear blank in the prior art.
Owner:CHONGQING RUNYUE MACHINERY CO LTD

Multicore composite shield cable

The invention discloses a multicore composite shield cable. The multicore composite shield cable comprises a central unshielded conductor, internal shield conductors, internal unshielded conductors and external shield wires. The central unshielded conductor is located at the center of the cable. The multiple internal shield conductors are evenly distributed outside the central unshielded conductor, and the long axes of the internal shield conductors are distributed in the radial direction of the cable. The multiple internal unshielded conductors are sequentially arranged between any two adjacent internal shield conductors and are located on the same circumference. The multiple external shield wires are evenly distributed outside a flame retarding taped covering layer. An elastic non-woven fabric taped covering layer and an outer sheath layer are sequentially wrapped on the external shield wires. According to the multicore composite shield cable, since the multiple internal unshielded conductors are arranged between any two adjacent internal shield conductors, filling of gap padding is reduced, and the roundness of the cable is guaranteed; meanwhile, the unshielded conductors are encircled by the shield conductors and the shield wires, so the requirement for shielding the unshielded conductors is met, shield layers and filling materials are reduced, and the production cost is reduced.
Owner:ANHUI WANTAI CABLE

Bird-prevention umbrella hat for high-voltage power transmission line insulator

PendingCN108470610ASolve a series of problems such as fracture and short circuitEnsure safetyAnimal repellantsInsulatorsPush pullHigh pressure
The invention relates to a bird-prevention umbrella hat, in particular to a bird-prevention umbrella hat for a high-voltage power transmission line insulator. The bird-prevention umbrella hat comprises an insulator body, wherein a main support umbrella post is fixedly arranged at a central position of a top end surface of the insulator body and is in a vertical state, movable hat plates are respectively hinged with post surfaces of a left side and a right side of a top end of the main support umbrella post by hinge seats, a support force-applying block is arranged at a middle position of a front side of the main support umbrella post, the support force-applying block and the movable hat plate at the left side and the support force-applying block and the movable hat plate at the right sideare connected by force-applying connection rods which are symmetrically arranged, a lifting guide block is arranged right below the support force-applying block, the support force-applying block and the lifting guide block are integrally connected by a short connection rod arranged at a middle part, a rotation disc is further arranged right below the lifting guide block, a disc surface of the rotation disc faces a right forward direction, and a disc body is connected with the lifting guide block by a power push-pull rod.
Owner:GUANGDONG POWER GRID CO LTD +1

Fire-resistant and high-temperature-resistant control cable and manufacturing method thereof

The invention discloses a fire-resistant and high-temperature-resistant control cable including multiple sets of conductors and including a heat dissipation reinforcing tube, wherein the conductors are coated with insulating layers to form insulating wire cores; the plurality of insulating wire cores are coated with braided shielding layers, the braided shielding layers are coated with high-temperature-resistant loose tubes to form main wire cores, the plurality of main wire cores are combined and are sequentially coated with a fireproof heat-insulating layer, a flame-retardant inner sheath, abraided armor layer and a flame-retardant outer sheath, the heat dissipation reinforcing pipe is located among the plurality of main wire cores, a plurality of support frames are fixedly connected tothe heat dissipation reinforcing pipe at equal intervals, and the fireproof heat-insulating layer is also filled with heat-insulating flame-retardant particles; the heat dissipation reinforcing pipemade of polytetrafluoroethylene is arranged among the main wire cores, the appearance organization is fine, no mechanical impurity exists, the strength is high, the heat dissipation reinforcing tube are located in the center gap of the main wire cores, and the structural stability, the tensile property and the high temperature resistance of the cable are improved. And through a plurality of vent holes in the surface of the heat dissipation reinforcing pipe, a heat dissipation effect can be achieved, and the internal heat resistance of the cable is improved.
Owner:TIANCHANG HUILING ELECTRIC APPLIANCE METER FACTORY

Binding post component for aviation power distribution product

The invention discloses a binding post component for an aviation power distribution product, relates to the technical field of binding posts, and solves the problems that the binding post is very difficult to install due to the fact that the arrangement condition of metal pins cannot be seen clearly when the binding post is in butt joint under the condition of insufficient light, and the binding post may fall off due to vibration accompanied by a power distribution product in the use process. The binding post component for the aviation power distribution product comprises a fixing block, a protective cover and a push block. The cable is electrically connected with metal pin holes and metal pins in inserting columns and pin columns. The device can automatically align the metal pins to the metal pin holes instead of manually aligning the metal pins to the metal pin holes, and can be suitable for installation in the environment with insufficient light; a locking block of an anti-falling ring is clamped to one end of a baffle ring, so that the connection relation between the inserting columns and the pin columns can be tighter, and the phenomenon that the inserting columns are separated from the pin columns under frequent and violent vibration can be avoided.
Owner:温州派瑞机械科技有限公司

Wireless power transfer system and transfer method

ActiveCN108173354AFrequency Tracking FreeRemove the frequencyTransformersCircuit arrangementsCapacitanceEngineering
The invention provides a wireless power transfer system and transfer method. The wireless power transfer system mainly consists of a signal source, an exciting coil, a pair of resonant coils with thesame resonant frequency, a receiving coil and a load; the pair of resonant coils, formed by multiple winding litz wires and loading capacitors on the side surface of an organic glass plate, are used to adjust and control the coil resonant frequency; and by virtue of single-mode point physical properties of a non-Hermitian system, the work frequency can be at the resonance frequency of the resonantcoils, for controlling the distance between the receiving coil and the adjacent resonant coil to adjust the energy transmission rate coupled out of the system, so that by changing the coupling distance of the pair of resonant coils, it is ensured that the system is in the single mode point, and the disadvantages in the prior art are overcome; and therefore, efficient wireless power transfer and single-frequency efficient wireless power transfer at the kilohertz frequency band are realized in a condition of changed coupled distances by virtue of the single single-mode point fixed frequency andthe physical properties with the minimum loss.
Owner:TONGJI UNIV
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