45results about How to "Good for high speed operation" patented technology

The present invention relates to a system and methodology to mitigate memory current requirements in an industrial controller and to facilitate efficient on-line editing, storage and retrieval of user programs and data. A segmented memory architecture is provided, wherein a first memory segment is loaded with programmed instructions and other data that is relatively static in nature. A second memory segment is provided for storage of dynamic information such as controller data table variables that change frequently and/or rapidly during program execution of the controller. An execution memory is concurrently loaded with the user program to facilitate high performance program execution and to enable on-line edits of the user program during operation of the controller.

The invention relates to a rotor suspension control method for a stator permanent magnet type bearingless synchronous motor. In the winding of a six-phase single winding stator permanent magnet type synchronous motor, a current symmetrical component for controlling torque and a suspension component for controlling the rotor suspending power flow through simultaneously; on the basis of the finite element analysis or an experimental measuring method, the relations of all coefficients in a rotor suspending power model and rotor position angles are determined; the active component, the reactive component, the rotor position angles, and radial suspending power component given values output by x-axis and y-axis rotor radial displacement controllers in the current symmetrical component flowing through the winding are sent to the provided rotor suspending power mathematical model, and the suspension component for controlling the rotor suspending power in the winding current is output. According to the method provided by the invention, through the adoption of the current closed-loop control method, the closed-loop control of the current symmetrical component and the suspension component for controlling the rotor suspending power can be realized simultaneously, and finally, the rotation of the six-phase single winding stator permanent magnet type synchronous motor under the rotor suspension state can be realized.

The invention relates to an ultrahigh-speed permanent magnet disk motor. The motor comprises a first stator core, a second stator core, a stator winding, an enclosure, a heat dissipation pipeline, a front end cover, a rear end cover, a high-speed rotor and ceramic bearings, wherein the high-speed rotor comprises a high-speed rotor core, permanent magnets, a rotor sheath and a rotor shaft; and thehigh-speed rotor core is installed on the rotor shaft in a sleeving mode, permanent magnet wedge-shaped installing slots are processed in the radial direction to install the permanent magnets, the permanent magnets are installed at the two axial sides of the high-speed rotor core, and the rotor sheath is installed on the high-speed rotor core. The motor has high mechanical strength and is suitablefor ultrahigh-speed running; and moreover, a good heat dissipation system is designed, and the situation that the permanent magnets are demagnetized during ultrahigh-speed running of the disk motor is prevented. The invention not only provides an ultrahigh-speed permanent magnet motor scheme but also discloses a motor assembling method.

The invention discloses an automatic gearshift device of an electric vehicle and relates to the field of vehicle-speed control components. The present electric vehicle is controlled by a Hall rotating handle opening ring, cannot realize the automatic conversion of the road condition and the torsion, restricts the application in mountainous and hilly regions and starts heavy current so as to shorten the service life of a storage battery, an electric motor, a controller and other important components., therefore, according to the technical scheme provided by the invention, the automatic gearshift device comprises a tower type transmission gear which is rotatably connected with the electric motor; the tower type driving gear is rotatably connected with a disc spring cam differential drive sensor which is connected with a cam transmission ECU (Electronic Control Unit) controller; and the ECU controller is connected with an electrical signal of the electric motor to form closed loop control. The invention has the advantages of strong climbing capability, long trip mileage, high automatic degree, quick response, energy saving and long service life.

The invention discloses a stamping mould drawing mechanism; a drawing slider can be slidably arranged in the drawing groove of a lower mould; both ends of an elastic drawing piece are fixedly connected with the lower mould and the drawing slider; the lower end of a slotting tool below an upper mould can extend into the drawing groove and pushes the drawing slider to reversely move along the conveying direction of a material belt; one end of the drawing block is hinged onto the drawing slider, and the other end of the drawing block is provided with a first barb structure; one side of the first barb structure which is back to the conveying direction of the material belt is an oblique surface; an upper end of a drawing floating elastic piece which is positioned in the drawing slider is tightly abutted to the lower part of the other end of the drawing block; a pressure plate is fixedly connected with the lower mould and is arranged above the material belt; the lower end of an anti-retraction stop god which can longitudinally slide in the pressure plate slidably is provided with a second barb structure; one side of the second barb structure which is back to the conveying direction of the material belt is also an oblique surface; an anti-retraction elastic piece is positioned in the pressure plate and is connected with the anti-retraction stop dog; and according to the stamping mould drawing mechanism, quick operation can be realized, the high-speed operation of the stamping mould is conveniently realized, and the production efficiency is improved.

An electrostatic protection device for a semiconductor circuit for protecting an internal circuit from static electricity applied to the pad includes a first conductivity type semiconductor substrate; second conductivity type diffusion regions formed on the surface of the semiconductor substrate at regular intervals into a dot type; isolation structures formed on the surface of the semiconductor substrate to respectively surround the second conductivity type diffusion regions; and first conductivity type diffusion regions formed on the surface of the semiconductor substrate outside of the second conductivity type diffusion regions and the isolation regions.

The invention discloses a two-needle bar warp knitting machine with double swing axles and double swing arms. The two-needle bar warp knitting machine is capable of dividing a guide bar swing arm to two parts. The structure comprises a guide bar, the guide bar swing arms, swing axles, and swing pull rods. The guide bar is divided to two parts which are respectively installed at the front and rear guide bar swing arms. One end of each of the front and rear guide bar swing arms is respectively fixed on the front and rear swing axles correspondingly, and the other end of each of the front and rear guide bar swing arms is respectively connected with the front and rear swing pull rods correspondingly. The front and rear swing pull rods are respectively connected with crankshaft mechanisms in front and rear boxes correspondingly. The front and rear guide bar swing arms are respectively driven to be swung by the front and rear crankshaft mechanisms. The two-needle bar warp knitting machine is capable of dividing the guide bar swing arm to two independent parts, and two guide bar swing arms are respectively swung, and are not mutually interfered. The bearing pressure of the guide bar swing arm is reduced, and the swing inertia of the guide bar in the operation process is reduced. The guide bar is more stable in the knitting cycle, and the high-speed operation of a machine is convenient.

The invention discloses a magnetic bearing based on radial rejection. The magnetic bearing comprises an annular permanent magnet; 2n current coils are evenly arranged around the annular permanent magnet along a radial direction; and the direction of radial magnetic field generated by the annular permanent magnet is opposite to the direction of radial magnetic field generated by the electric coils. The magnetic bearing employs interaction of the annular permanent magnet and the winding coils to produce radial suspension repulsion; and the magnetic bearing device has simple and compact structure, and is stable and reliable. The invention also discloses a flywheel energy storing device applying the magnetic bearing device; the energy storing device employs exclusive principle of magnetic fields with the same polarity to form a dynamically stable system; and closer distance generates stronger repulsion, so as to facilitate high speed operation of the spindle without colliding or scraping with inner wall of the casing.

A combing machine equipped with a rotary tong-basement consists of a frame, a motor, a gear-box and a combing part. The rotary tong-basement, arranged on the combing part and pivoted onto an eccentric transmission sleeve via a linkage bar, can move reciprocally on a slide bed on the frame. The eccentric transmission sleeve is installed on a disc on a eccentric driving shaft connected with the motor via a transmission mechanism. A triangular arm is arranged on the rotary tong-basement, with the upper tong plate at the front end of the triangular arm. Feeding rollers with bearings are installed on the tong-basement. A lower tong plate and top comb are fixed on the front end of the tong-basement. The upper tong plate is also pivoted with a connecting lever, of which the other end is pivoted on an eccentric calender sleeve, which is also arranged on an eccentric disc of an eccentric calender shaft that is connected with the motor via a transmission mechanism. The said machine has high speed, less vibration and noise, with high use ratio of resource and improved air flow condition.

Provided is a pantograph head of a ring shaft rotary electric traction locomotive. The pantograph head of the ring shaft rotary electric traction locomotive is characterized in that an outer casing isfixed on the roof of the locomotive; a rotating shaft in a contact tube of a zigzag contact line can be rotatably mounted in the outer casing; an annular slide plate is mounted on a bracket; a plurality of power lines are arranged in the inner cavities of multiple support arms of the bracket; the outer ends of the power lines are connected with the slide plate; the inner ends of the power lines are connected with a central power line in a through hole of the rotating shaft; an annular copper sheet is fixed on the outer wall surface of the rotating shaft; a support spring between an annular electric brush and the outer casing forces the annular electric brush to attach to the annular copper sheet to generate current collection effect; the lower end of the central power line conducts currents to electrical equipment inside a vehicle body. The pantograph head of the ring shaft rotary electric traction locomotive has the advantages of enabling the slide plate to have various advantages such as high service life, large current collecting area, good stability and good heat dissipation, and being of high practical value and popularization value in the field of rail transit.

The invention relates to a method for powering electric car with air track, wherein it uses three air electric tracks to power the electric car; the small power sliding car moves on the track to power the car; the car is supported by ground.

A registration device includes a feed roller which presses one surface of a sheet to feed the sheet. A cartridge unit is placed opposite to the feed roller and includes a follower roller to support the other surface of the sheet. An image forming unit forms an image on the sheet and a regulating element rotates the cartridge unit relative to the feed roller so that an arranged sheet can be fed into the image forming unit. The registration device can regulate the parallel degree between the cartridge unit and the feed roller in the process of assembling the image forming apparatus to prevent the skew of the sheet.

The invention discloses a three-degree-of-freedom spherical hybrid magnetic bearing with an axial self-loop. An outer axial stator, an upper annular permanent magnet, a radial stator, a lower annularpermanent magnet and a lower axial stator sequentially coaxially sleeve a rotator from top to bottom, each of the upper axial stator and the lower axial stator is formed by axially connecting an upperdisc, a middle disc and a receiving disc, the inner end surface of every upper disc extend radially inwards extends to form a conical disc, small discs are arranged between the upper and lower end surfaces of the rotor and the corresponding conical discs, the small discs are closely attached to the upper and lower surfaces of the corresponding conical discs, the upper small disc is located abovethe upper end surface of the rotor, and the lower small disc is located below the lower end surface of the rotor; and axial air gaps are left between the upper and lower small disks and the end surface of the rotor, and a control magnetic flux enters the receiving discs through return air gaps to axially form the self-loop without mounting a pushing disc, so the rotating speed of the rotor is optimized, and coupling of axial and radial magnetic fields is reduced.

The automatic stereoscopic warehouse with the high-speed straight rail reciprocating type shuttle vehicle system comprises a storage support and a shuttle vehicle body, a shuttle guide rail is arranged between the storage support and the shuttle vehicle body, and a bearing lifting plate is arranged above the shuttle vehicle body; a first lifting rod and a second lifting rod are arranged below the front end and the rear end of the bearing lifting plate correspondingly, corresponding pneumatic pressurizing bins are arranged below the first lifting rod and the second lifting rod correspondingly, buffering air bags are arranged at the front end and the rear end of the shuttle vehicle body correspondingly, and the buffering air bags are communicated with the adjacent pneumatic pressurizing bins through communicating pipes. The collision buffering effect is achieved through the buffering air bag, meanwhile, the pneumatic supporting inclination angle of the shuttle vehicle to a carried piece is synchronously adjusted through collision compressed airflow of the buffering air bag, the dumping effect caused by high-speed braking inertia is offset, the buffering air bag can be in linkage with the side brake pad, the braking effect is further improved, high-speed running of the shuttle vehicle is facilitated, and the service life of the shuttle vehicle is prolonged. And the storage transfer working efficiency is improved.

The present disclosure discloses a permanent magnet electric motor, which is a radial flux electric motor, consisting of a stator and a rotor, wherein an inner circle of the stator is provided with N stator teeth evenly in circumferential direction, each of the stator teeth is wound by a coil, and the N coils form stator windings, wherein, the N is an integer not less than 12. Additionally, the number of magnetic poles of the rotor is not less than 12 so that widths and the centrifugal forces of the magnets under each of the magnetic poles are limited, thereby facilitating the high speed operation of the electric motor and improving the safety. The stator is manufactured by laminating a plurality of annular thin sheets with a same shape, and the material of the annular thin sheets is an amorphous magnetic conductive material, whose power loss in an alternating magnetic field is lower than that of silicon steel, which hugely increases the efficiency of the electric motor.

The invention discloses a manufacturing process of a wireless charger shell based on a water gap automatic cutting technology. The manufacturing process mainly comprises the steps that a raw materialis subjected to injection molding to the wireless charger shell, and then, wireless charger shell loading, cutting of one side by a cutting blade, rotary cutting of the other side by the cutting blade, waste falling back and the like are carried out in sequence. Through the above process, fully-automatic, intelligent and continuous machining of the wireless charger shell can be achieved, moving ofa cutter is locked while it is ensured that the cutter cuts a water gap, the problem that under the influence of the injection molding pressure, the cutter retreats can be effectively solved, the product appearance can be ensured, production efficiency is improved, the manufacturing process improves the cutting precision of the intelligent assembly water gap, the cutting effect is good, high-speed running during water gap is facilitated, a cut edge is smooth and flat, and the process has the important promoting effect on the product production yield.