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31results about How to "Meet the needs of different speeds" patented technology
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Multi-gear transmission and planetary gear train thereof
ActiveCN104896038AShorten the lengthMeet the durabilityToothed gearingsTransmission elementsAutomatic transmissionGear wheel
The invention discloses a planetary gear train to be used for a multi-gear transmission. At least nine available forward gears and at least one available reverse gear can be obtained. The planetary gear train comprises a first planet row, a second planet row, a third planet row and a fourth planet row. Each planet row comprises a sun gear, a planet carrier and a gear ring. Components and connection members of the planet rows can form seven rotation elements. A gear shifting component comprises two clutches and four brakes. The clutches are arranged among the selected rotation elements of the rotation elements, and the brakes are arranged between the selected rotation elements of the rotation elements and fixing parts. The planetary gear train has more gears and optimal speed ratio, the power transmission performance and the fuel economy of the cars can be improved apparently, and the planetary gear train is short, compact in overall design, capable of meeting requirements of cars for transmission durability, power transmission efficiency, size, costs and the like well. The invention further discloses an automatic transmission with the planetary gear train.
Owner:SHAANXI FAST GEAR CO
Intelligent glue rolling device for motor rotor
ActiveCN103657944AGuaranteed uniformityEnsure consistencyLiquid surface applicatorsManufacturing stator/rotor bodiesMotor speedGlass fiber
The invention relates to glue coating equipment, in particular to an intelligent glue rolling device for a motor rotor. The intelligent glue rolling device is characterized by comprising a bracket bottom plate, a glue tank, an adsorption type rolling roller, an AC speed reducer motor and an electric control box, wherein the glue tank is arranged on the bracket base board; the adsorption rolling roller is arranged just above the glue tank, and the cylindrical surface of the adsorption rolling roller is in matched contact with the liquid level of the glue tank; the rotor is arranged just above the adsorption rolling roller, and the cylindrical surface of the adsorption rolling roller is matched with the cylindrical surface of the rotor in a rolling manner; an adjustable motor speed reducer, an adjustable time delay and a control switch are arranged on the electric control box, and the AC speed reducer motor, the adjustable motor speed regulator, the adjustable time relay and the control switch form a control loop. The intelligent glue rolling device uses the adsorption rolling roller to coat the rotor with glue, and can ensure the uniformity of a glass fiber cloth surface; the rotation speed of the AC speed reducer motor can be set via the adjustable motor speed reducer, the operation is very flexible, and requirement on different rotation speeds can be satisfied.
Owner:ZHEJIANG LINIX MOTOR
Equivalent subcarrier allocation system and method of multi-user multi-tone code division multiple access MT-CDMA
ActiveCN105939541AExcellent distribution resultMeet the needs of different speedsMulti-frequency code systemsWireless communicationUser needsTime division multiple access
The invention discloses an equivalent subcarrier allocation system and method of multi-user multi-tone code division multiple access MT-CDMA. The system and the method comprises the steps of obtaining a gain value of each user on each equivalent subcarrier in an MT-CDMA system according to a channel gain value of each user on each subcarrier; evaluating that how many equivalent subcarriers does each user need to select for transmission according to a user data speed threshold value, wherein the subcarriers in the sub-blocks are ensured to have similar transmission characteristics by use of an evenly-spaced subcarrier block diversity mode; carrying out equivalent subcarrier allocation according to an irrigation principle by taking each subcarrier sub-block as an equivalent subcarrier. The system and the method have the advantages that the characteristic that the speed difference of the users are relatively high is taken into consideration, different speed demands of the multi-user MT-CDMA system can be satisfied, the system and the method are compatible with an existing self-adaptive resource allocation system of multi-user MT-CDMA, and the existing system can be modified conveniently.
Owner:CHINA UNIV OF MINING & TECH
Textile winding device
InactiveCN107458926AControl the winding speedIncrease contact areaFilament handlingElectric machineryDrive motor
The invention discloses a textile winding device, which comprises two winding racks, drive motors are installed in the middle of the opposite sides of the two winding racks, and the two drive motors are respectively connected to the two ends of the winding roller by transmission. The top of each winding rack is fixedly connected with the two ends of the first connecting rod respectively, two suction pumps are installed on the bottom of the first connecting rod, the output ends of the two suction pumps are connected with the external textile dust collection box through pipelines, and the two The bottom of the opposite side of the winding frame is fixedly connected with the two ends of the fan frame respectively, and two destaticizing ion fans are installed inside the fan frame. The present invention can reduce the generation of static electricity on the textile winding device by being equipped with an ionizing blower to remove static electricity, so as to increase the safety of production. The need for speed makes this device more user-friendly.
Owner:湖州金桥进出口有限公司
Integrated type planet gear reduction differential motor used for new-energy automobile
PendingCN107933272ACompact structureSmall footprintElectric propulsion mountingControl devicesEpicyclic gearingNew energy
The invention provides an integrated type planet gear reduction differential motor used for a new-energy automobile. The output end of a drive motor is connected with a differential mechanism througha speed reducer. The drive motor, the speed reducer, the differential mechanism and an automobile outer shell are integrated into an integrated structure through a drive motor outer shell, a speed reducer outer shell and a differential mechanism outer shell and serve as a part of a new-energy automobile axle housing, the structure is compact, the occupied space is small, and the overall weight isgreatly reduced. A differential mechanism inner shell is fixedly connected to the output end of the speed reducer, the differential mechanism is connected with a left axle shaft of the automobile through a left axle shaft gear and connected with a right axle shaft of the automobile through a right axle shaft gear, the rotation speed output by the drive motor is reduced through the hollow shaft type planet gear speed reducer and converted into torque of different numerical values through the differential mechanism, the torque is transmitted to the left axle shaft and the right axle shaft of theautomobile, differential drive of the left axle shaft and the right axle shaft of the automobile is achieved, the left axle shaft and the right axle shaft of the motor output torque at the same time,the differential speed can be obtained automatically, and the requirement for different rotation speeds of wheels on the two sides of the new-energy automobile is met.
Owner:航科汽车底盘系统(镇江)有限公司
Automatic transmission and planetary gear train thereof
ActiveCN105485271AImprove power transmission performanceImprove fuel economyToothed gearingsGearing detailsAutomatic transmissionGear wheel
The invention discloses a planetary gear train used for an automatic transmission. At least eight forwarding gears and at least two reversing gears can be obtained, and the planetary gear train comprises a first planet row, a second planet row, a third planet row and a fourth planet row. Each planet row is provided with a sun gear, a planetary frame and a gear ring; eight rotating bodies can be jointly formed by assemblies of the planet rows and connecting components; a gear shifting assembly comprises three clutches and three brakes, and the clutches are arranged between selected rotating bodies in the rotating bodies; and the brakes are arranged between the selected rotating bodies in the rotating bodies and fixing parts. The planetary gear train can have more gears and the more optimized speed ratio; the power transmission performance and the fuel economy of a vehicle can be obviously improved, the length is shorter, the whole design is more compact, and the requirements of the vehicle for durability, the power transmission rate, the size, the cost and the like of the transmission can be met well. The invention further discloses the automatic transmission provided with the planetary gear train.
Owner:西安双特智能传动有限公司
Interventional robot system and readable storage medium
ActiveCN114521971AMeet operational needsMeet different speed requirementsDiagnosticsSurgical robotsRobotic systemsPhysical medicine and rehabilitation
The invention provides an interventional robot system and a readable storage medium. A touch switch of the interventional robot system is arranged on an operating rod, connected with a processor and used for sending the current state of the switch to the processor; the main end encoder is arranged on the operating rod, is connected with the processor and is used for sending the operating rod displacement formed when the operating rod is controlled to execute the current operation to the processor; the zero position sensor is arranged on the base, is connected with the processor and is used for sending the current state of the sensor to the processor; the processor is used for receiving the displacement of the operating rod sent by the main end encoder, the current sensor state sent by the zero position sensor and the current switch state sent by the touch switch; based on the displacement of the operating rod, the current state of the sensor and the current state of the switch, the slave end of the interventional robot is controlled to execute movement corresponding to the displacement of the operating rod, so that precise control over movement of the slender medical instrument is guaranteed, and invalid operation is eliminated.
Owner:SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD
Adaptive equivalent subcarrier allocation system and method for multi-user NOMA
InactiveCN108289022AMeet the needs of different speedsImprove performanceTransmission path divisionCarrier signalSelf adaptive
The invention discloses an adaptive equivalent subcarrier allocation system and method for multi-user NOMA. The method and system include: providing equivalent subcarriers with similar transmission characteristics by using an equal-interval subcarrier block diversity method; according to the gain information of each user on each subcarrier, obtaining the gain information of each user on each equivalent subcarrier in the NOMA system; determining the number of equivalent subcarriers required by the user to transmit data according to a channel gain amplitude threshold value accepted by the user;allocating the equivalent subcarriers by using an irrigation principle. The method can meet the requirements of different user rates, and can also adaptively allocate the equivalent subcarriers to improve transmission performance.
Owner:CHINA UNIV OF MINING & TECH
Novel bearing with base
InactiveCN106286611AMeet the needs of different speedsNovel structural designShaftsRotary machine partsEngineeringMechanical engineering
Owner:邢建岭
Supporting and transmitting system for winding drum for hoisting mechanism
ActiveCN108046146APrecise positioningImprove transmission efficiencyGearboxesGear lubrication/coolingNeedle roller bearingInterference fit
The invention relates to a supporting and transmitting system for a winding drum for a hoisting mechanism. The supporting and transmitting system comprises a winding drum supporting part, a parallel shaft reduction gearbox part and a planetary transmission part; the winding drum supporting part adopts a needle bearing for supporting the winding drum, an inner ring of the needle bearing is integrated with a box body of a parallel shaft reduction gearbox, and an outer ring of the needle bearing is integrated with the winding drum; the parallel shaft reduction gearbox part adopts three-stage hardtooth surface helical gears for transmission, and the parallel shaft speed reduction gearbox part is provided with motor connectors; the planetary transmission part is fixed by a planet carrier, a gear ring of the planetary transmission part is in interference fit with the winding drum, an input end of the planetary transmission part is provided with a sun gear located at the center of a reduction gearbox, an output end of the planetary transmission part is provided with the gear ring installed on the winding drum, and the sun gear of the planetary transmission part is connected with an output shaft of the parallel shaft reduction gearbox. The supporting and transmitting system for the winding drum has the advantages that structure is simple in design, the size is small, the speed ratio is high, the performance is excellent, and assembly is easy.
Owner:WORLDHOISTS TIANJIN
Electric vehicle speed changing box with speed gear
The invention relates to an electric vehicle speed changing box with a speed gear. The outer shell of the speed changing box is internally provided with a motor output shaft, a bridge wheel shaft and a speed changing box output wheel shaft, wherein the motor output shaft is respectively connected with the outer shell and a motor; a motor high-speed output wheel, a motor low-speed output wheel and a motor driving wheel are connected on the motor output shaft; the motor high-speed output wheel and the motor low-speed output wheel are respectively provided with a groove and a bulge, and are correspondingly spliced with the motor driving wheel in a slidable mode; the outer side surface of the motor driving wheel is fixedly connected with a shifting fork; transmission bridge wheels (1,2,3,4) which are in coaxial transmission are sequentially connected on the bridge wheel shaft; the transmission bridge wheels (1,2,3,4) are respectively meshed and in transmission connection with the motor high-speed output wheel, the motor driving wheel and the motor low-speed output wheel; and the transmission bridge wheel (3) is meshed and in transmission connection with the output wheel of the speed changing box. The speed changing box of the invention has simple structure, can realize gear shifting conveniently, satisfies requirements on different speeds in the processes of starting and climbing of the electronic vehicle, brings convenience for people and improves the performances of the speed changing box.
Owner:孙世广
Male parent cutting machine for hybrid rape seed production field
PendingCN114223388AMeet the needs of different speedsLow input speedCrop conditionersMowersAgricultural engineeringMechanical engineering
The invention discloses a male parent cutting machine for a hybrid rape seed production field. The male parent cutting machine comprises a rack which is provided with a handle, an engine, a gear shifting handle, a walking gearbox, a spiral conveying roller gearbox, two cutter gearboxes, two reel mechanisms and two dividing plate assemblies. A first output shaft on the engine is in transmission connection with an input shaft of the walking gearbox through a first transmission mechanism, an input shaft of the cutter gearbox is in transmission connection with an input shaft of the walking gearbox through a second transmission mechanism, and the reel mechanism is in transmission connection with an output shaft of the cutter gearbox. A second output shaft on the engine is in transmission connection with an input shaft of the spiral conveying roller gearbox through a power output transmission box, a pair of spiral conveying rollers is arranged on an output shaft of the spiral conveying roller gearbox, and a double-layer cutting knife is arranged on an output shaft of the cutting knife gearbox. According to the cutting machine, the cutting efficiency and effect of the rape male parents are greatly improved, time and labor are saved, and the labor cost is reduced.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI +1
Vehicle hybrid power assembly, control method and vehicle
InactiveCN113263903AMeet different speed requirementsImprove battery lifeHybrid vehiclesGas pressure propulsion mountingLow speedBattery charge
The embodiment of the invention provides a vehicle hybrid power assembly. The vehicle hybrid power assembly comprises a storage battery, an inverter, a first motor, an engine, a second motor and a gearbox. The two motors are combined with the engine, the motors do not need to be combined into an existing engine gearbox, the structure is simple, and the transmission efficiency is high. In addition, when the vehicle runs at a low speed, the vehicle can be driven through the engine, large torque is provided for the vehicle, and overheating of the motor is avoided. When the vehicle runs at a high speed, the vehicle can be driven by the second motor, the two-gear gear set can meet different speed requirements of the vehicle, when the engine and the motors work at the same time, the engine can drive the first motor to generate electricity, then the storage battery is charged in the running process of the vehicle, and the endurance mileage of the vehicle is increased.
Owner:CHERY AUTOMOBILE CO LTD
Eleven-gear transmission based on planetary gear train
ActiveCN112081884AExtended service lifeMany gearsToothed gearingsTransmission elementsClutchGear transmission
The invention relates to a transmission, and particularly relates to an eleven-gear transmission based on a planetary gear train. The eleven-gear transmission based on the planetary gear train solvesthe technical problem that an existing four-speed transmission and an existing six-speed transmission have limitations in the aspects of fuel economy, response power performance, stability and the like. The eleven-gear transmission based on the planetary gear train comprises a transmission shell and the planetary gear train. The planetary gear train comprises four planetary rows and seven gear shifting assemblies, wherein the four planetary rows and the seven gear shifting assemblies are arranged on the same shaft system; eight rotating bodies are formed among the four planetary row assembliesthrough connecting components such as rotating shafts; the gear shifting assemblies change the degree of freedom of the planetary gear train through clutches and brake; and different speed ratio transmission between an input shaft and an output shaft can be achieved through combination and separation of the different assemblies, and finally the gear shifting speed of at least eleven forward gearsand at least two reverse gears can be obtained. The eleven-gear transmission based on the planetary gear train has a more optimized speed ratio, and the power transmission performance and fuel economy of a vehicle are remarkably improved.
Owner:SHAANXI FAST GEAR CO
Vehicle hybrid power assembly, control method and vehicle
ActiveCN113263902AMeet the needs of different speedsImprove battery lifeHybrid vehiclesGas pressure propulsion mountingLow speedBattery charge
The embodiment of the invention provides a vehicle hybrid power assembly. The vehicle hybrid power assembly comprises a storage battery, an inverter, a first motor, an engine, a second motor and a gearbox. According to the invention, the two motors are combined with the engine, the motors do not need to be combined into an existing engine gearbox, the structure is simple, and the transmission efficiency is high. In addition, when the vehicle runs at a low speed, the vehicle can be driven through the engine, large torque is provided for the vehicle, and overheating of the motor is avoided. When the engine and the motor work simultaneously, the engine can drive the first motor to generate electricity, so that the storage battery is charged in the running process of the vehicle, and the endurance mileage of the vehicle is increased. The rear driving shaft and two output shafts can enable the vehicle to be in a front-driving state or a four-driving state, the vehicle can be adjusted to be in a front-driving mode or a four-driving mode according to needs during driving, and different driving requirements are met.
Owner:CHERY AUTOMOBILE CO LTD
Branch-picking grinder
PendingCN106508294ARealize direct return to fieldSave human effortCrop conditionersMowersMechanical engineeringPulverizer
The invention relates to a branch-picking grinder which comprises a frame, wherein the front end of the frame is in pulling connection with a traction device; a rotatable rear support roll is arranged at the bottom of the rear end of the frame; a grinding device is arranged on the rear side in the frame; a picking device is arranged on the front part of the frame; the picking device is used for picking the branches into the grinding device on the rear side in a rotating manner. The picking device of the branch-picking grinder can pick the branches into the grinding device; the branches are ground in the grinding device; the grinding device has a netted bottom wall; the branches can be discharged from the grinding device only after the branches are less than the grid size of the bottom wall; the size of the branches can be effectively controlled; the happening of uneven grinding phenomenon can be avoided.
Owner:DEZHOU DONGWEI TRACKS MACHINERY
Hydraulic engine powered winch
InactiveCN109823972AMeet the needs of different speedsNot easy to shift gearsWinding mechanismsBall valveFuel tank
The invention discloses a hydraulic engine powered winch. The hydraulic engine powered winch comprises a gasoline engine, a hydraulic variable pump and a roller; a gasoline tank is arranged behind thegasoline engine, a coupler is arranged on the gasoline engine, an electric bottle is arranged on one side of the coupler, and the hydraulic variable pump is arranged on the coupler; and a radiator isarranged on one side of the gasoline engine, a hydraulic oil tank is arranged behind the radiator, a filter is arranged on the hydraulic oil tank, an overflow valve is arranged in front of the radiator, a ball valve is arranged on one side of the overflow valve, a hydraulic handle is arranged on one side of the ball valve, and an electric contact hydraulic pressure gauge is arranged above the hydraulic handle. The method has the beneficial effects that stepless variable speed can be realized, the requirements of a user for different speeds can be met, meanwhile, the load size can be displayed, so that a user can make a reasonable use method for judging the size of the load; and moreover, load size setting and load protection safety measures are provided, and therefore the convenience of using of the engine powered winch is improved.
Owner:泰州市昊鑫电力机具有限公司
Chemical material reaction device
InactiveCN107376812AMeet the needs of different speedsEasy to crushChemical/physical/physico-chemical stationary reactorsAir volumeDrive wheel
The invention discloses a chemical material reaction device which comprises a barrel, a crushing cavity, a material mixing cavity, an upper cover, a handle, a pressure valve, a lug plate, a positioning pin, a locking knob, a driving motor, a motor seat, a spindle box, a conveying pipe, a brake valve, a discharging pipe, a discharging port, a fan seat, an air blower, an air conveying pipe, an air volume adjusting valve, a driving wheel, a spindle, a transmission belt, a first driven wheel, a crushing shaft, a second driven wheel, a material mixing shaft, a movable gear block, a fixed gear block and material mixing blades. According to the device, the crushing degree of solid raw materials is improved by the crushing cavity, reaction of late mixed materials is accelerated, crushing and mixing of chemical materials are performed in a same device, time waste caused by transportation of the chemical materials is avoided, worker injury caused in the transportation process of the chemical materials is avoided, the wastage rate of the materials is decreased, the chemical material reaction device is suitable for a plurality of different working modes, high in universality and high in speed, stability and accuracy, and labor is effectively decreased.
Owner:何恩言
An interventional robot system and readable storage medium
ActiveCN114521971BMeet operational needsMeet the needs of different speedsDiagnosticsSurgical robotsRobotic systemsPhysical medicine and rehabilitation
Owner:SHENZHEN INST OF ADVANCED BIOMEDICAL ROBOT CO LTD
Drum support transmission system for hoisting mechanism
ActiveCN108046146BPrecise positioningImprove transmission efficiencyGearboxesGear lubrication/coolingNeedle roller bearingInterference fit
The invention relates to a reel support transmission system for a hoisting mechanism, which includes a reel support part, a parallel shaft reduction box part and a planetary transmission part; The ring is integrated with the box of the parallel shaft gearbox, and the outer ring of the needle bearing is integrated with the reel; the parallel shaft gearbox part adopts three-stage hard tooth surface helical gear transmission, and the parallel shaft gearbox part is Motor interface; the planetary transmission part is fixed by the planet carrier, the ring gear of the planetary transmission part is in interference fit with the reel, the input end of the planetary transmission part is the sun gear located in the center of the reduction box, and the output end of the planetary transmission part is installed on The ring gear on the reel and the sun gear of the planetary transmission part are connected with the output shaft of the parallel shaft reducer; the structure design is simple, and it has the advantages of small size, large speed ratio, superior performance, and easy assembly.
Owner:WORLDHOISTS TIANJIN
Outboard machine driven by triangle rotor engine
InactiveCN1911731ASmall sizeReduce weightPropulsion power plantsOutboard propulsion unitsImpellerReciprocating motion
The present invention discloses one kind of triangular rotor engine driven overside impeller, which includes triangular rotor engine in the upper part of the overside impeller and underwater power output mechanism driven with the engine through a driving shaft. The triangular rotor engine has output shaft and driving shaft connected directly and coaxially or indirectly via a reduction gear. The overside impeller with triangular rotor engine, rather than reciprocating engine, has reduced volume, light weight and capacity of producing high running speed.
Owner:陈维加
An eleven-speed transmission based on a planetary gear train
ActiveCN112081884BImprove power transmission performanceImprove fuel economyToothed gearingsTransmission elementsRotational axisGear wheel
The present invention relates to a transmission, in particular to an eleven-speed transmission based on a planetary gear train, which solves the limitations of existing four-speed and six-speed transmissions in terms of fuel economy, responsiveness, and stability. question. The eleven-speed transmission based on the planetary gear system of the present invention includes a transmission housing and a planetary gear system. The planetary gear system includes four planetary rows and seven shifting assemblies arranged on the same shaft system. The four planetary row assemblies pass through The rotating shaft and other connecting components form eight rotating bodies. The shifting component uses clutches and brakes to change the degree of freedom of the planetary gear train. The shifting speed of at least eleven forward gears and at least two reverse gears is obtained, with a more optimized speed ratio, which significantly improves the power transmission performance and fuel economy of the vehicle.
Owner:SHAANXI FAST GEAR CO
Oil pump and vehicle
The invention provides an oil pump and a vehicle. The oil pump comprises a drive shaft, a driven shaft and a motor, wherein a drive gear fixedly sleeves the drive shaft; a driven gear sleeves the driven shaft; the driven gear is engaged with the drive gear; the motor drives the driven shaft to axially move to change an engaged area of the driven gear and the drive gear. The oil pump can meet needs, under different rotation speeds, of an engine, so that engine oil pressure is kept on relatively stable level; and moreover, the oil pump is simple in structure and is compact in structure, and canreduce processing difficulty of the oil pump.
Owner:GREAT WALL MOTOR CO LTD
Intelligent control system of double speed gearbox of dredge pump and control method thereof
ActiveCN102322516BImplement shift controlMeet the needs of different speedsMechanical machines/dredgersGearing controlElectricityControl signal
The invention discloses an intelligent control system of a double speed gearbox of a dredge pump and a control method thereof. The control system comprises an input shaft rotating speed sensor, an output shaft rotating speed sensor, a gear shifting state detecting element, an electrical control element of a gear shifting mechanism and a main controller, wherein a signal input end of the main controller is electrically connected with the input shaft rotating speed sensor, the output shaft rotating speed sensor, an electrical control system of a clutch of the dredge pump and the gear shifting state detecting element; and a signal output end of the main controller is electrically connected with a control signal input end of the electrical control element of the gear shifting mechanism. The control method comprises the following steps: after the main controller receives a gear shifting command input by a user, the main controller judges whether the rotating speeds of a power input shaft and a power output shaft are zero and whether the joint state of the clutch of the drudge pump is in a disconnecting state; and if yes, the electrical control element of the gear shifting mechanism is used for controlling the gear shifting mechanism to shift the gear. The invention realizes the gear shifting control on the double speed gearbox of the dredge pump and meets the requirements of a trailing suction dredge for different rotating speeds under different working conditions such as dredging and mud blowing.
Owner:SHANGHAI QIYAO HEAVY IND CO LTD
Multi-user time-frequency code diversity mt-cdma equivalent subcarrier allocation system and method
ActiveCN105939541BExcellent distribution resultMeet the needs of different speedsMulti-frequency code systemsWireless communicationUser needsCarrier signal
The invention discloses an equivalent subcarrier allocation system and method of multi-user multi-tone code division multiple access MT-CDMA. The system and the method comprises the steps of obtaining a gain value of each user on each equivalent subcarrier in an MT-CDMA system according to a channel gain value of each user on each subcarrier; evaluating that how many equivalent subcarriers does each user need to select for transmission according to a user data speed threshold value, wherein the subcarriers in the sub-blocks are ensured to have similar transmission characteristics by use of an evenly-spaced subcarrier block diversity mode; carrying out equivalent subcarrier allocation according to an irrigation principle by taking each subcarrier sub-block as an equivalent subcarrier. The system and the method have the advantages that the characteristic that the speed difference of the users are relatively high is taken into consideration, different speed demands of the multi-user MT-CDMA system can be satisfied, the system and the method are compatible with an existing self-adaptive resource allocation system of multi-user MT-CDMA, and the existing system can be modified conveniently.
Owner:CHINA UNIV OF MINING & TECH
A motor rotor intelligent rubber rolling device
ActiveCN103657944BGuaranteed uniformityGuaranteed accuracyLiquid surface applicatorsManufacturing stator/rotor bodiesMotor speedGlass fiber
The invention relates to glue coating equipment, in particular to an intelligent glue rolling device for a motor rotor. The intelligent glue rolling device is characterized by comprising a bracket bottom plate, a glue tank, an adsorption type rolling roller, an AC speed reducer motor and an electric control box, wherein the glue tank is arranged on the bracket base board; the adsorption rolling roller is arranged just above the glue tank, and the cylindrical surface of the adsorption rolling roller is in matched contact with the liquid level of the glue tank; the rotor is arranged just above the adsorption rolling roller, and the cylindrical surface of the adsorption rolling roller is matched with the cylindrical surface of the rotor in a rolling manner; an adjustable motor speed reducer, an adjustable time delay and a control switch are arranged on the electric control box, and the AC speed reducer motor, the adjustable motor speed regulator, the adjustable time relay and the control switch form a control loop. The intelligent glue rolling device uses the adsorption rolling roller to coat the rotor with glue, and can ensure the uniformity of a glass fiber cloth surface; the rotation speed of the AC speed reducer motor can be set via the adjustable motor speed reducer, the operation is very flexible, and requirement on different rotation speeds can be satisfied.
Owner:ZHEJIANG LINIX MOTOR
An automatic transmission and its planetary gear train
ActiveCN105485271BImprove power transmission performanceImprove fuel economyToothed gearingsGearing detailsElectric power transmissionAutomatic transmission
The invention discloses a planetary gear train for an automatic transmission, which can obtain at least eight available forward gears and at least two available reverse gears, including the first planetary row, the second planetary row, the third planetary row and the first planetary row. Four planetary rows, each planetary row has a sun gear, a planet carrier and a ring gear; the assembly of the planetary row and the connecting member can form eight rotating bodies in total; the shift assembly includes three clutches and three brakes, the clutch It is arranged between a selected one of the rotating bodies, and the brake is arranged between a selected one of the rotating bodies and a fixed piece. The planetary gear train can have more gears and a more optimized speed ratio, which can significantly improve the power transmission performance and fuel economy of the vehicle, and is shorter in length and more compact in overall design, which can well meet the requirements of the vehicle on the durability of the transmission. Performance, power transmission efficiency, size, cost and other requirements. The invention also discloses an automatic transmission provided with the planetary gear train.
Owner:西安双特智能传动有限公司
A seated bearing
InactiveCN106286611BMeet the needs of different speedsNovel structural designShaftsRotary machine partsMechanical engineeringEngineering
Owner:邢建岭
A Variable Speed Yarn Winding Device with Adjustable Radius of Main Transmission Wheel
The invention relates to the technical field of textile fabrics, and discloses a variable speed winding device with an adjustable radius of the main transmission wheel, including a mounting frame, which is characterized in that: the interior of the mounting frame is fixedly connected with a wire inlet, and the mounting frame The inside of the mounting frame is fixedly connected with a guide wheel, the inside of the installation frame is fixedly connected with a slide bar, the outside of the slide bar is connected with a buffer spring, and the outside of the slide bar is slidably connected with a pressure line slider. The inside of the wire slider is fixedly connected with a wire pressing spring, and the bottom of the wire pressing spring is fixedly connected with a wire pressing rod. Through the cooperation of the buffer spring and the wire pressing slider, the winding device needs a short time due to a failure in the previous process. When the yarn transmission is stopped and the winding device continues to operate, the yarn compresses the buffer spring, so that the yarn can continue to be wound at one end length, which acts as a buffer to avoid yarn breakage and fully guarantee the integrity of the yarn , to ensure the quality of the yarn, and improve the winding efficiency of the yarn.
Owner:兰溪市裕达纺织有限公司
Vehicle hybrid powertrain, control method and vehicle
ActiveCN113263902BMeet the needs of different speedsImprove battery lifeHybrid vehiclesGas pressure propulsion mountingLow speedBattery charge
An embodiment of the present application provides a vehicle hybrid powertrain, and the vehicle hybrid powertrain includes a battery, an inverter, a first motor, an engine, a second motor and a gearbox. In this application, two motors are combined with the engine without combining the motors into the existing engine gearbox, and the structure is simple and the transmission efficiency is high. Moreover, when the vehicle is running at a low speed, the engine can be used to drive the vehicle to provide a larger torque for the vehicle to avoid overheating of the motor. When the engine and the motor work at the same time, the engine can drive the first motor to generate electricity, and then charge the battery while the vehicle is running, increasing the cruising range of the vehicle. The rear drive shaft and the two output shafts in the present application can make the vehicle in the front-drive or four-wheel drive state, and the vehicle can be adjusted to the front-drive mode or the four-wheel drive mode according to needs during driving to meet different driving needs.
Owner:CHERY AUTOMOBILE CO LTD
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