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31results about How to "Increase the maximum speed" patented technology

Motor driving apparatus

A motor driving apparatus includes an inverter circuit for converting an output voltage of a power supply into a three-phase AC and outputting the same to the brushless motor, a rotor position estimation unit for estimating a rotor position of the brushless motor, and an inverter control unit for controlling the inverter circuit so that the brushless motor is driven by a current based on the estimated rotor position. The inverter control unit determines an advance angle of the current supplied to the brushless motor with respect to the estimated rotor position so as to minimize a deviation between a command rpm and an actual rpm. Therefore, it is possible to perform stable weak field control for the brushless motor, independently from the input voltage of the inverter circuit, without using predetermined control variables such as table values.
Owner:III HLDG 7

Comprehensive test stand for water-lubricated bearings for pumps

The invention discloses a comprehensive test stand for water-lubricated bearings for pumps. The comprehensive test stand comprises a driving transmission system, a main box, a bearing, a lubricating system, a loading system, a measuring system, a signal analyzing and processing system and the like, the driving transmission system consists of a variable-frequency motor, an elastic coupler, a step-up box and the like, the main box is a cube with a transparent top cover plate, and a spindle horizontally enters the box from a side wall, which is close to the end of the elastic coupler, of the main box. A pressure sensor, an eddy current sensor, a vibration acceleration sensor, a temperature sensor and the like are sequentially arranged and mounted on the spindle or around the spindle and used for acquiring displacement signals, rotation speed signals, phase signals, temperature signals, pressure signals, vibration signals and the like, and the sensed signals which are acquired by the various sensors in an online manner are transmitted to an upper computer to be processed, displayed and stored. The comprehensive test stand has the unique advantages of fine performance, high precision, low cost, environmental protection, zero pollution, friction reduction, energy conservation, noise and vibration reduction, fine fire resistance, easiness in maintenance and the like.
Owner:JIANGSU UNIV

Automatic gear-shifting control method and system for two-gear transmission of electric vehicle

The invention discloses an automatic gear-shifting control method and system for a two-gear transmission of an electric vehicle, and belongs to the technical field of electric vehicle gear-shifting control. The automatic gear-shifting control method comprises the specific steps that whether the gear-shifting condition is met or not is judged, if the gear-shifting condition is met, the gear-shifting mode is conducted, and transmission control unit (TCU) replaces a vehicle controller to control a driving motor controller, so that torque of the driving motor is reduced to zero torque according toa certain curve; in the zero torque, the TCU controls a gear-shifting executing mechanism to shift a gear down to a neutral gear; in the neutral gear, control torque is determined through the TCU byutilizing a certain algorithm, so that the rotating speed of a driving motor is adjusted to the target speed; After the target speed is reached, the TCU controls the gear-shifting executing mechanismto shift gear; a non-gear-shifting mode is conducted, torque is slowly increased to the torque corresponding to an accelerator signal according to a certain curve; torque reducing and torque increasing are conducted according to the certain curve, and the speed is adjusted through the TCU by using a torque mode, so that the speed adjusting time is reduced, quick gear shifting is achieved, abruptness caused by power interruption during gear shifting can be effectively alleviated, and the driving feeling is improved.
Owner:济宁中科智能科技有限公司

Electric automobile transmission and speed change method

The invention discloses an electric automobile transmission and a speed change method of the electric automobile transmission. The electric automobile transmission comprises a hydraulic torque converter with the locking function, a planet gear mechanism, an oil pump, an oil pump motor, a controller, a speed reducing mechanism and a differential mechanism. The hydraulic torque converter with the locking function comprises a pump impeller, a turbine, an input shaft, an output shaft and other components. A driving motor is connected with the pump impeller through the input shaft, and the turbine is connected with the output shaft. The torque of the output shaft is transmitted to the planet gear mechanism. The planet gear mechanism comprises a sun gear, a planet carrier, a big gear ring, a clutch, a brake and other components. Torque is output from the planet carrier through the planet gear mechanism and drives an automobile to run after passing through the speed reducing mechanism and the differential mechanism. The transmission can have two mechanical transmission gears and one hydraulic torque conversion gear. The oil pump is used for providing pressure for a hydraulic system of the transmission. Due to the electric automobile transmission, the climbing performance and the acceleration performance of the electric automobile can be improved, and the reliability of the automobile can be enhanced.
Owner:HUNAN UNIV

Magnetorheological fluid-based semi-active control variable inertia dual-mass flywheel

The invention relates to a magnetorheological fluid-based semi-active control variable inertia dual-mass flywheel, and aims to solve the problems of uncontrollable damping and small adjustable dampingrange of the existing dual-mass flywheel. The magnetorheological fluid-based semi-active control variable inertia dual-mass flywheel comprises a primary flywheel assembly, a secondary flywheel assembly, an excitation device, a damping liquid chamber assembly, a magnetorheological fluid, an inner rotor, two variable inertia discs and two arc-shaped springs; the primary flywheel assembly is supported on each of a second flywheel connecting shaft and the secondary flywheel assembly; the secondary flywheel assembly is matched with the second flywheel connecting shaft; a force transferring plate is in rigid connection with a second flywheel; the two arc-shaped springs are symmetrically mounted in two arc-shaped grooves of the primary flywheel assembly; the inner rotor and the two variable inertia discs are matched with the second flywheel connecting shaft; damping plates are matched with damping clamping grooves in a damping liquid chamber shell to form a plurality of layers of fluid gaps;an upper damping liquid chamber shell is connected with a lower damping liquid chamber shell through shell extending plates at cross sections; and the excitation device is fixed to the outer side ofthe damping liquid chamber shell.
Owner:JILIN UNIV

Method for detecting the position of a rotor of a DC motor and related circuit

A method for detecting the position of a rotor of a DC motor with N phases having a plurality of windings, comprising the steps of connecting two of the windings between first and second prefixed voltages through to a first current path for a prefixed time, allowing the current stored in the two windings to discharge through a second current path; comparing the voltage across one of the two windings with a reference voltage and providing a control signal when the voltage is smaller in absolute value than the reference voltage, performing the above steps for each of the winding pairs of the motor; detecting the position of the rotor on the basis of the control signals obtained.
Owner:STMICROELECTRONICS SRL

Combined high-performance pentamaran ship with rotating body

The invention is complex high performance quintuple body ship with a rotative object. Its feature is that the rotative accessories which rotate around the axis perpendicular to the longitudinal section of the middle of the ship are installed under the bow of central body and behind the two propulsion device at the tail by support stand. The shafts of the three accessories all linked with energy converting device. It solves the problem that twin-hull ship (boat) or small (or middle sized) twin-hull boat is limited by the large torque both longitudinally and transversely which rationally reduced the weight of the structure above the waterline base on the premise that no speed, wave tolerance, sailing adaption and intensity loss. At the same time the inventions makes use of the energy from the wave at the bow and recycle the energy of the wake from the propulsion device to supply the light, canal, emergency equipment and other subordinate aspects to save the energy.
Owner:JIANGSU UNIV OF SCI & TECH

Multistage serial-parallel conversion circuit

The invention discloses a multistage serial-parallel conversion circuit, which is characterized by comprising at least three stages of D trigger groups. The first stage of D trigger groups comprises n cascaded D triggers with the same first clock signals; the second stage of D trigger groups comprises n*m cascaded D triggers with the same second clock signals; the third stage of D trigger groups comprises n*m cascaded D triggers with the same third clock signals; in the first stage of D trigger groups, the output end of the ath D trigger is connected with the input end of the ath D trigger in the second stage of D trigger groups; the output end of the ((m-1)*n+a)th D trigger in the second stage of D trigger groups is connected with the input end of the (m*n+a)th D trigger in the second stage of D trigger groups and is also connected with the input end of the ((m-1)*n+a)th D trigger in the third stage of D trigger groups; and n, m and a are all natural numbers, and a< / =n.
Owner:CAPITAL MICROELECTRONICS

Multiphase disc type hybrid excitation flux switching motor

The invention discloses a disc type hybrid excitation flux switching motor, which is composed of a stator iron core, a rotor iron core, armature windings, excitation windings and permanent magnets. The stator and the rotor are coaxially installed. A single stator iron core is provided with 4*m*k*n stator magnetic conductive teeth, and the stator is provided with m*q permanent magnets which are uniformly embedded in the outer sides of excitation grooves. The rotor iron core is provided with (2*m*k+ / -1)*n magnetic conductive teeth which are uniformly distributed along the circumference; m is thenumber of phases of the motor, n is the number of motor units, k is the number of pairs of concentrated armature windings connected in series with any phase of armature windings in each motor unit, and q is a positive integer (ensuring 4*k*n / q is a positive integer and is less than 2*k*n). The motor provides excitation magnetic flux through the permanent magnets and the excitation windings, not only has strong magnetic field adjusting capability, but also is small in the axial size, and is suitable for being applied to occasions requiring thin installation strictly, such as electric vehiclesand the like which require a wide speed adjusting range.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Permanent magnet motor and compressor

The invention discloses a permanent magnet motor and a compressor. The permanent magnet motor comprises a stator and a rotor. The stator comprises a stator core, a plurality of coil groups, and two motor lead groups. Each coil group comprises a plurality of coils which are coiled on stator bulging teeth. Each coil group comprises an incoming line terminal and a leading-out terminal formed by joints in the same number. Each motor lead group has a plurality of joints used to connect with the coil groups, and a motor lead of a motor control circuit. An inverter with a control algorithm provides power input for the permanent magnet motor. An effective value Um of maximum voltage between terminals, provided to the permanent magnet motor by the inverter, and no-load back EMF ke value between motor line terminals satisfy 4<=Um / ke<=56, wherein unit of Um is volt, unit of ke is volt / thousand round per minute. The permanent magnet motor can also satisfy torque output capacity of a motor in high-frequency.
Owner:GUANGDONG MEIZHI COMPRESSOR

High-strength washing machine high-speed motor bearing

The invention discloses a high-strength washing machine high-speed motor bearing and relates to the field of bearings. The high-strength washing machine high-speed motor bearing comprises a bearing body. The bearing body is sequentially provided with an outer ring, a rolling body, a retainer, a first inner ring, a second inner ring and an inner shaft sleeve from outside to inside. The first inner ring and the second inner ring are arranged side by side. The rolling body comprises a first cylindrical roller arranged on the outer side of the first inner ring, a second cylindrical roller arranged on the outer side of the second inner ring, a first rolling ball arranged on the inner side of the first inner ring and a second rolling ball arranged on the inner side of the second inner ring. A fastening portion is arranged on the outer side of the inner shaft sleeve. The fastening portion is used for fixing the first inner ring and the second inner ring. The inner side of the inner shaft sleeve is provided with a toothed groove which is used for fixing the bearing body to a rotating shaft. By means of the design that the rolling balls are combined with the cylindrical rollers, the effect of increasing the load of the bearing is well achieved, the largest rotating speed of the bearing can be greatly improved due to the design of a good lubricating system and a nylon retainer, the service life of the bearing is prolonged, and the requirement for the high-strength and high-speed bearing of a washing machine is met.
Owner:宁波银球小型轴承有限公司

Rotating joint

InactiveCN107131371AFree from side loadsLow costPipe elementsMachine toolMedium pressure
The invention discloses a rotating joint installed on a machine tool body (4). The rotating joint comprises a joint outer shell (3) and a sealing mechanism, wherein the joint outer shell (3) is arranged in the machine tool body (4) in a sleeved mode, and the sealing mechanism is arranged in the joint outer shell (3). The end of the joint outer shell (3) is provided with a connection hole (1) connected with a main shaft. The sealing mechanism comprises a hollow joint core shaft (6), a disc-shaped sealing ring (8) and a spring (9), wherein the joint core shaft (6) is inserted into the joint outer shell (3), the disc-shaped sealing ring (8) is installed on the end face of a shaft head of the outer end of the joint core shaft (6), one end of the spring (9) is connected with the disc-shaped sealing ring (8), the other end of the spring (9) is clamped to the tail end of the joint outer shell (3), the inner end of the joint core shaft (6) can be connected with the machine tool body (4), and a cavity between the machine tool body (4) and the rotating joint can communicate with a through hole in the joint core shaft (6). Unlimited dry operation without medium pressure is effectively achieved through the rotating joint.
Owner:GUANGDONG UNIV OF TECH

Implementation method of photon counting detector image generation based on fpga

The photon counting detector image generation realization method based on FPGA relates to the field of photoelectric detection technology, and the technical problem to be solved is to overcome the deficiency of the existing realization method of the space camera photon counting detector image generation unit, and the present invention realizes image generation through FPGA software unit, which reduces the hardware requirements of the system, simplifies the interface for image data transmission, and improves system reliability. By setting the buffer FIFO before and after the large-capacity memory, the parallel execution function of image data receiving and storing and data transmission and sending is realized, which meets the needs of continuous shooting, improves the processing rate of image data by the image generation unit, and ensures that the imaging system realizes the highest A performance metric for photon count rate.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

CO2 energy power generation system with clean afterburning and multielement heat exchange of heat engine exhaust smoke

InactiveCN107543154AIncrease heat outputMaximize energy saving and environmental protection benefitsInternal combustion piston enginesEngine componentsEngineeringPollution
The invention relates to a CO2 energy power generation system technology with clean afterburning and multielement heat exchange of heat engine exhaust smoke. On the basis of original innovation of combustion science of the patent ZL201220566497.4 invented by the inventor, energy conservation and environment protection of appearing and hiding waste heat losses of heat engine exhaust smoke and CO2,SO2, NO and NO2 acid gas pollution need flue gas treatment, the technology is provided with an afterburning hearth furnace combustion CO2, three-array heat exchange unit and steam turbine cycle powergeneration system with heat engine exhaust smoke CO2 energy, (a steam turbine exhaust condensing system, a heat engine exhaust smoke, a low-temperature element array, a magnesium-catalyzing afterburning hearth furnace, a high temperature element array, waste heat low-temperature element array and a variable-frequency induced draught fan) and steam turbine combined cycle power generation by takinga afterburning hearth furnace as a center.
Owner:管理

Semi-active control variable inertia dual mass flywheel based on magnetorheological fluid

The invention relates to a magnetorheological fluid-based semi-active control variable inertia dual-mass flywheel, and aims to solve the problems of uncontrollable damping and small adjustable dampingrange of the existing dual-mass flywheel. The magnetorheological fluid-based semi-active control variable inertia dual-mass flywheel comprises a primary flywheel assembly, a secondary flywheel assembly, an excitation device, a damping liquid chamber assembly, a magnetorheological fluid, an inner rotor, two variable inertia discs and two arc-shaped springs; the primary flywheel assembly is supported on each of a second flywheel connecting shaft and the secondary flywheel assembly; the secondary flywheel assembly is matched with the second flywheel connecting shaft; a force transferring plate is in rigid connection with a second flywheel; the two arc-shaped springs are symmetrically mounted in two arc-shaped grooves of the primary flywheel assembly; the inner rotor and the two variable inertia discs are matched with the second flywheel connecting shaft; damping plates are matched with damping clamping grooves in a damping liquid chamber shell to form a plurality of layers of fluid gaps;an upper damping liquid chamber shell is connected with a lower damping liquid chamber shell through shell extending plates at cross sections; and the excitation device is fixed to the outer side ofthe damping liquid chamber shell.
Owner:JILIN UNIV

A kind of multi-stage serial-to-parallel conversion circuit

The invention discloses a multistage serial-parallel conversion circuit, which is characterized by comprising at least three stages of D trigger groups. The first stage of D trigger groups comprises n cascaded D triggers with the same first clock signals; the second stage of D trigger groups comprises n*m cascaded D triggers with the same second clock signals; the third stage of D trigger groups comprises n*m cascaded D triggers with the same third clock signals; in the first stage of D trigger groups, the output end of the ath D trigger is connected with the input end of the ath D trigger in the second stage of D trigger groups; the output end of the ((m-1)*n+a)th D trigger in the second stage of D trigger groups is connected with the input end of the (m*n+a)th D trigger in the second stage of D trigger groups and is also connected with the input end of the ((m-1)*n+a)th D trigger in the third stage of D trigger groups; and n, m and a are all natural numbers, and a< / =n.
Owner:CAPITAL MICROELECTRONICS

Thrust rudder

The invention provides a thrust rudder comprising a rudder base, a main rudder, a sub-rudder and a sub-rudder telescopic mechanism. The sub-rudder telescopic mechanism comprises a turntable, a turntable base, a turntable connecting rod, a vertical telescopic shaft, a vertical telescopic shaft connecting rod, a horizontal telescopic shaft and a telescopic shaft connecting rod, wherein the turntable is a round flange plate which can rotate around a shaft; the turntable connecting rod is a long and thin cylinder with two ends openings for connecting the turntable and the vertical telescopic shaft, the vertical telescopic shaft is a cylinder and a lower part horizontally projects towards left near an upper and front part of the main rudder; the horizontal telescopic shaft is a flat cube, the rear part projects the horizontal telescopic shaft connecting rod; and horizontal telescopic shaft is provided with a brake block. The thrust rudder provided by the invention can meet the needs for handling and emergently thrusting a ship, improve the trust efficiency, increase the maximum ship speed and further acquire the energy-saving effect.
Owner:HARBIN ENG UNIV

rotor for electric motor

A rotor (1) for an electric motor, comprising a stack (2) of a plurality of laminations (10, 16) insulated from one another arranged on a shaft (4), the rotor being intended to operate at a particularly low Particularly high maximum rotational speeds and powers of the electric motor are permitted due to the complexity of manufacture. For this purpose, in the axial edge region of the laminated core (2), cutouts (18) are introduced in the plurality of laminations (16), which are arranged in such a way that they form a cavity surrounding the shaft (4) (twenty two).
Owner:SIEMENS AG

Novel self-lubricating washing machine high-speed motor bearing

The invention discloses a novel self-lubricating washing machine high-speed motor bearing, and relates to the field of bearings. The novel self-lubricating washing machine high-speed motor bearing comprises a bearing body, wherein the bearing body is sequentially provided with an outer ring, rolling bodies, retainers, an inner ring I, an inner ring II and an inner shaft sleeve from outside to inside, wherein the inner ring I and the inner ring II are arranged in parallel; each rolling body comprises a cylindrical roller I and a cylindrical roller II which are respectively arranged at the outersides of the inner ring I and the inner ring II and a ball I and a ball II which are respectively arranged at the inner sides of the inner ring I and the inner ring Ii; a fastening part is arranged at the outer side of the inner shaft sleeve; the fastening part is used for fixing the inner ring I and the inner ring II; tooth-shaped grooves are formed in the inner side of the inner shaft sleeve; the tooth-shaped grooves are used for fixing the bearing body on a rotating shaft. According to the novel self-lubricating washing machine high-speed motor bearing disclosed by the invention, through the design of the balls and the cylindrical rollers, a function of increasing the load of a bearing is well achieved; through the design of a good lubricating system and nylon retainers, the maximum rotating speed of the bearing can be greatly increased, the service life of the bearing can be prolonged, and the requirements on the high-strength and high-speed bearing of a washing machine can be met.
Owner:CHUZHOU MODERN IND INVESTMENT DEV CO LTD +1

FPGA based photon counting detector image production achievement method

The invention provides an FPGA based photon counting detector image production achievement method, relates to the technical field of photoelectric detection and aims at overcoming the shortcomings of an existing achievement method for a space camera photon counting detector image production unit. The FPGA based photon counting detector image production achievement method achieves the image production unit through FPGA software, the hardware demand of a system is reduced, image data transfer interfaces are simplified, and system reliability is improved. Cache FIFO are arranged in front and back of a mass memory so as to achieve a function of achieving concurrent execution of image data receiving and storage and data transmission sending, the continuous shooting demand is met, the image data processing rate of the image production unit is improved, and it is ensured that an imaging system achieves performance index at highest photon counting rate.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Two-gear coaxial electric drive system

The invention discloses a two-gear coaxial electric drive system which comprises a driving motor, a motor output shaft, a motor output gear, a duplicate gear large gear, a duplicate gear small gear, aclutch, a brake, a planet carrier and a differential case. The system comprises a set of duplicate gear and a set of single-row planetary mechanism. The rotating speed of a motor can be reduced through the duplicate gear, and the situation in which the high rotating speed of the high-speed motor is directly transmitted to the clutch so that early failure or unstable work of the clutch is caused is prevented. The rear planetary mechanism is connected with the brake and the clutch at the same time, and two gears can be achieved by controlling the closing of the clutch and the brake. The planetary mechanism is adopted, the speed ratio adjusting range of the first gear is large, larger torque can be output, the torque requirement of the driving motor can be reduced accordingly, the size and the weight of the driving motor can be reduced accordingly, and the purpose of reducing cost can be achieved. The system is free of power interruption during gear shifting and has excellent driving comfort.
Owner:GETRAG JIANGXI TRANSMISSION

High-pressure pump

The invention relates to general machinery, in particular to a high-pressure pump. The pump comprises a pump head and a barrel-shaped pump body. The pump head is connected with the pump body, and thebarrel bottom of the pump body faces the pump head. Piston rods are evenly distributed at the barrel bottom of the pump body in the circumferential direction of the barrel bottom and arranged in the axial direction of the pump body. The two ends of each piston rod stretch out of the two sides of the barrel bottom of the pump body respectively, the piston rods are in sliding sealing fit with the pump body, and the portions, located outside the pump body, of one ends of the piston rods are connected with the pump head. The pump is characterized in that a rotating shaft is concentrically arrangedin the pump body, the rotating shaft is matched with the pump body in a rotating mode, a swash plate is fixed to the rotating shaft, notches are formed in the sections, located in the pump body, of the the inner side walls of the piston rods, the piston rods are clamped to the swash plate through the notches, and gaps are formed between the outer edge of the swash plate and the bottoms of the notches. Ball heads are arranged on the portions, in the notches, of the two end faces of the swash plate. Flat plates are arranged on the sides, corresponding to the ball heads, of the swash plate and abut against the swash plate. The high-pressure pump is long in service life and high in water pumping pressure.
Owner:无锡迅元精密科技有限公司

Analog decision feedback equalization circuit for high-speed SerDes

The invention provides an analog decision feedback equalization (DFE) circuit for a high-speed SerDes, which comprises a delay unit, a multiplier and a coefficient update circuit, wherein the coefficient update circuit generates a coefficient by means of a symbolic LMS algorithm. The analog decision feedback equalization circuit is characterized in that the delay unit and the multiplier are an analog delay unit and an analog multiplier respectively, and the delay of a signal is realized through the analog delay unit; the multiplication of the coefficient and an output signal of the analog delay unit is realized through the analog multiplier; and the output of the analog multiplier is realized through current summing. The analog DFE circuit for the high-speed SerDes realizes functions of the DFE circuit through the analog multiplier and the analog delay unit, improves the highest rate and speed capable of being supported by the circuit and can reduce the area at the same time.
Owner:XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA

Comprehensive test stand for water-lubricated bearings for pumps

The invention discloses a comprehensive test stand for water-lubricated bearings for pumps. The comprehensive test stand comprises a driving transmission system, a main box, a bearing, a lubricating system, a loading system, a measuring system, a signal analyzing and processing system and the like, the driving transmission system consists of a variable-frequency motor, an elastic coupler, a step-up box and the like, the main box is a cube with a transparent top cover plate, and a spindle horizontally enters the box from a side wall, which is close to the end of the elastic coupler, of the main box. A pressure sensor, an eddy current sensor, a vibration acceleration sensor, a temperature sensor and the like are sequentially arranged and mounted on the spindle or around the spindle and used for acquiring displacement signals, rotation speed signals, phase signals, temperature signals, pressure signals, vibration signals and the like, and the sensed signals which are acquired by the various sensors in an online manner are transmitted to an upper computer to be processed, displayed and stored. The comprehensive test stand has the unique advantages of fine performance, high precision, low cost, environmental protection, zero pollution, friction reduction, energy conservation, noise and vibration reduction, fine fire resistance, easiness in maintenance and the like.
Owner:JIANGSU UNIV

Excavator slewing braking energy recovery control method

The invention discloses an excavator rotation braking energy recovery control method. When an upper body rotary platform starts to rotate, a motor controller receives a command to enable a motor to be in a power-driven state, and the motor with an electricity generation function is driven to reach a certain work rotation speed. When the upper body platform stops rotating, the motor controller sends reverse torque signals to the motor, so that hydraulic oil of an oil outlet of a rotary motor pushes a recovery motor, due to the fact that the motor has a certain rotation speed, the motor can quickly response to the torque of the recovery motor to generate and store electricity, pressure reduction of a braking opening of the rotary motor is reduced, overflow loss is reduced, the maximum rotation speed of the motor is improved, electricity generating time is lengthened, and maximum efficient rotation braking energy recovery is achieved.
Owner:SUNWARD INTELLIGENT EQUIP CO LTD

A high-strength washing machine high-speed motor bearing

The invention discloses a high-strength washing machine high-speed motor bearing and relates to the field of bearings. The high-strength washing machine high-speed motor bearing comprises a bearing body. The bearing body is sequentially provided with an outer ring, a rolling body, a retainer, a first inner ring, a second inner ring and an inner shaft sleeve from outside to inside. The first inner ring and the second inner ring are arranged side by side. The rolling body comprises a first cylindrical roller arranged on the outer side of the first inner ring, a second cylindrical roller arranged on the outer side of the second inner ring, a first rolling ball arranged on the inner side of the first inner ring and a second rolling ball arranged on the inner side of the second inner ring. A fastening portion is arranged on the outer side of the inner shaft sleeve. The fastening portion is used for fixing the first inner ring and the second inner ring. The inner side of the inner shaft sleeve is provided with a toothed groove which is used for fixing the bearing body to a rotating shaft. By means of the design that the rolling balls are combined with the cylindrical rollers, the effect of increasing the load of the bearing is well achieved, the largest rotating speed of the bearing can be greatly improved due to the design of a good lubricating system and a nylon retainer, the service life of the bearing is prolonged, and the requirement for the high-strength and high-speed bearing of a washing machine is met.
Owner:宁波银球小型轴承有限公司
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