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

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.

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.

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.

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.

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.

An image forming apparatus including: a driven rotational body that is detachable from the image forming apparatus and includes a driven connecting part; a transmission member that receives a rotational power and includes a driving connecting part provided along a direction of a rotational axial line of the driven rotational body; and an assembling member that receives the rotational power from the transmission member, transmits the rotational power to the driven rotational body to rotate the driven rotational body, and includes a driven side assembling part to connect to the driven connecting part, and a driving side assembling part to connect to the driving connecting part.

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.

The invention discloses a conveying line with a blocking effect. The conveying line comprises two symmetric speed chains arranged in parallel. The two speed chains are arranged on two fixed mounting plates correspondingly. Drive gears are arranged at the bottoms of the middles of the two speed chains correspondingly. The two drive gears are arranged on a hexagonal bar in a sleeving mode and rotate along with the hexagonal bar. One end of the hexagonal bar is connected with a gear motor. Left-handed thread and right-handed thread screws are arranged in the positions, on the two sides of the hexagonal bar, of a bottom plate framework. The two Left-handed thread and right-handed thread screws are in threaded connection with the corresponding fixed mounting plates. Two blocking mechanisms are further symmetrically arranged between the two speed chains. Each blocking mechanism comprises a fixed mounting frame, and a jacking air cylinder is arranged one each fixed mounting frame. According to the conveying line with the blocking effect, the width of a conveying belt can be adjusted, the structure is compact, positioning can be conducted, and the blocking effect is good.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.