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60results about How to "Speed effect" patented technology

Birotor permanent magnet motor and washing machine

The invention provides a birotor permanent magnet motor and a washing machine with the same. The birotor permanent magnet motor comprises an inner rotor, a stator and an outer rotator which are sequentially arranged from inside to outside, and is characterized in that both the inner rotor and the outer rotor are permanent magnet rotors, and the stator comprises a magnetic modulation ring and a stator winding arranged on the magnetic modulation ring in a wound mode. The birotor permanent magnet motor is based on the magnetic field modulation principle and has a birotor structure, the outer rotor and the inner rotor can rotate according to certain proportional relation, and high-performance output of the motor under operating conditions of a low speed and a high speed can be met at the same time. When the birotor permanent magnet motor drives the washing machine to operate, not only are design requirements for low-speed large torque output and high-speed small torque output of the motor under the optimal operating state met, but also the structures of a belt pulley, a reduction gearbox and the like in a traditional washing machine are eliminated, transmission efficiency of the motor is improved, and meanwhile the defects of high noise, machine body vibration and the like of the traditional washing machine are overcome.
Owner:ZHEJIANG UNIV

Bridge anti-collision device

The invention discloses a bridge anti-collision device, and mainly relates to the technical field of bridge design. The bridge anti-collision device comprises a position adjusting mechanism and an anti-collision device assembly. The position adjusting mechanism comprises a bearing frame, a vertical guide rail, a coil spring box and a pull rope. The anti-collision assembly comprises an annular sliding support, an annular box and rubber bar shafts. The annular sliding support is provided with a vertical sliding groove in sliding connection with the vertical guide rail, annular flanges are arranged on the annular sliding support, and the annular box and the rubber bar shafts are arranged between the adjacent annular flanges. Water swelling rubber is arranged in the annular box, water-perviousholes are formed in the face of the soft rubber, and the rubber bar shafts are arranged between the adjacent annular flanges and sleeved with rubber pipes. The bridge anti-collision device has the beneficial effect that the position of the device can be freely adjusted according to rising and dropping of the water level. After a ship collides with the bridge anti-collision device, the course canbe changed smoothly, the speed of the ship is not greatly influenced, and the ship can smoothly pass through the bridge anti-collision device.
Owner:ZHENGZHOU UNIVERSITY OF AERONAUTICS

Robot travelling platform traveling at constant speed in single-drive mode and based on centrifugation

The invention belongs to the technical field of robot travelling platforms and particularly relates to a robot travelling platform traveling at a constant speed in a single-drive mode and based on centrifugation. The robot travelling platform comprises a bearing plate, a travelling mechanism and a transmission mechanism. By adoption of design of the robot travelling platform, the effect of a third brake piece is that when a robot turns, the rotary speed of a sixth transmission shaft gets lower through friction effect of the third brake piece on the sixth transmission shaft, the rotary speed of an eighth transmission shaft gets higher through a third differential mechanism, and therefore the rotary speeds of tenth transmission shafts on the two sides of a second differential mechanism get higher so as to enable steering to be more smooth. The effect of the second differential mechanism is that according to the sizes of the resistance of the tenth transmission shafts and thirteenth transmission shafts on the two sides of the second differential mechanism, the rotary speeds of the tenth transmission shafts and the thirteenth transmission shafts on the two sides of the second differential mechanism are changed; and the effect of a first differential mechanism is that according to the sizes of the resistance of fourth transmission shafts and fourteenth transmission shafts on the two sides of the first differential mechanism, the rotary speeds of the fourth transmission shafts and the fourteenth transmission shafts on the two sides of the first differential mechanism are changed.
Owner:新昌县城关宾立机械厂

High temperature resistant smoke and heat exhaust ventilator

The invention belongs to the technical field of fire fighting blowers, and particularly relates to a high temperature resistant smoke and heat exhaust ventilator. The smoke and heat exhaust ventilatorcomprises an outer barrel, and the bottom of the outer barrel is provided with a fixing base; the outer barrel is internally provided with a motor through a fixing rod, and the motor comprises a shell and a rotating shaft; the left end of the rotating shaft is located at the exterior of the shell, and provided with a No.1 fan, and the right end of the rotating shaft is rotatably installed on theinner wall of the right side of the shell; the rotating shaft is internally provided with a channel and a screw conveyer; the left end of the screw conveyer is rotatably installed at the left end of the channel in the rotating shaft, and the right end of the screw conveyer penetrates through the right wall of the rotating shaft and the right wall of the shell, and is provided with a No.2 fan; thebarrel-type inner wall of the shell is internally provided with a plurality of horizontal flow channels circumferentially and uniformly, and the inner walls of the right and left sides of the shell are internally provided with vertical flow channels commutating with the horizontal flow channels; the inner walls of the right and left sides of the shell are provided with flushing holes used for flushing the No.1 fan and the No.2 fan, and the flushing holes communicate with the vertical flow channels; and a controller is arranged behind the outer barrel, and used for controlling the fans to work.
Owner:山东兴恒环境科技集团有限公司

Double closed loop control direct-current speed regulation system based on linear driving

The invention discloses a double closed loop control direct-current speed regulation system based on linear driving. The double closed loop control direct-current speed regulation system based on linear driving is characterized by being composed of a transformer T, a rectification filter circuit, a double closed loop control circuit connected with the output end of the rectification filter circuit, a fine adjustment circuit connected with the double closed loop control circuit, a linear driving circuit connected with the secondary side of the transformer T, a voltage stabilizing circuit connected with the linear driving circuit, an operational amplification circuit connected with the output end of the voltage stabilizing circuit, and an output circuit connected with the output end of the operational amplification circuit, both the double closed loop control circuit and the fine adjustment circuit are connected with the primary side of the transformer T, the liner driving circuit is composed of a driving chip U2, a triode VT3, a triode VT4, a triode VT5, a triode VT6, a polar capacitor C10 and the like, the positive electrode of the polar capacitor C10 is connected with a dotted terminal of an inductance coil L of the secondary side of the transformer T, and the negative electrode of the polar capacitor C10 passes through a resistor R16 and then is connected with an IN1 pin of the driving chip U2. According to the double closed loop control direct-current speed regulation system based on linear driving, due to the fact that the linear driving circuit is adopted, the speed regulation system is made more stable.
Owner:CHENGDU SIMAO TECH

Double closed-loop-control direct-current speed regulation system based on loss suppression

The invention discloses a double closed loop control direct-current speed regulation system based on linear driving. The double closed loop control direct-current speed regulation system based on linear driving is characterized by being composed of a transformer T, a rectification filter circuit, a double closed loop control circuit connected with the output end of the rectification filter circuit, a fine adjustment circuit connected with the double closed loop control circuit, a linear driving circuit connected with the secondary side of the transformer T, a voltage stabilizing circuit connected with the linear driving circuit, an operational amplification circuit connected with the output end of the voltage stabilizing circuit, and an output circuit connected with the output end of the operational amplification circuit, both the double closed loop control circuit and the fine adjustment circuit are connected with the primary side of the transformer T, the liner driving circuit is composed of a driving chip U2, a triode VT3, a triode VT4, a triode VT5, a triode VT6, a polar capacitor C10 and the like, the positive electrode of the polar capacitor C10 is connected with a dotted terminal of an inductance coil L of the secondary side of the transformer T, and the negative electrode of the polar capacitor C10 passes through a resistor R16 and then is connected with an IN1 pin of the driving chip U2. According to the double closed loop control direct-current speed regulation system based on linear driving, due to the fact that the linear driving circuit is adopted, the speed regulation system is made more stable.
Owner:CHENGDU JIESHENG TECH CO LTD

Extraction dephenolization device and extraction dephenolization method for coal chemical industry wastewater treatment

The invention provides an extraction dephenolization device for coal chemical industry wastewater treatment. The device includes a static mixer, a mixing clarification extraction tank and a pluralityof centrifugal extractors. Specifically, the inlet of the mixing clarification extraction tank is communicated with the outlet of the static mixer; the feed liquid inlet of a first-stage centrifugal extractor is communicated with the raffinate outlet of the mixing clarification extraction tank; the extracted liquid outlet of the first-stage centrifugal extractor is communicated with the extractantinlet of the static mixer through a pipeline; all the centrifugal extractors are in countercurrent connection; at least one of the centrifugal extractors is equipped with a first feed liquid inlet valve and a first raffinate outlet valve, and a first by-pass communicated with the valves are disposed outside; at least one of the centrifugal extractors is equipped with a second extractant inlet valve and a second extracted liquid outlet valve, and a second by-pass communicated with the valves are disposed outside; and the first by-pass and the second by-pass are equipped with valves. The invention also provides an extraction dephenolization method for coal chemical industry wastewater treatment.
Owner:辽宁大唐国际阜新煤制天然气有限责任公司

Visual tracking method for unmanned aerial vehicle and unmanned aerial vehicle having visual tracking function

The invention relates to a visual tracking method for an unmanned aerial vehicle. The method comprises the following steps: S1, acquiring image information of a plurality of groups of tracked targetsthrough a camera of an unmanned aerial vehicle and then carrying out training by using the image information to obtain a tracking model of the tracked targets; S2, with a current tracking model, detecting the tracked target by the camera of the unmanned aerial vehicle and continuously acquiring the image information of the tracked target in real time; S3, adjusting the motion of the unmanned aerial vehicle according to the image information change of the tracked target; and S4, repeating the S2 and the S3 to realize visual tracking of the unmanned aerial vehicle on the target. In the S2, eachframe of image information obtained in real time is stored in a training set and a new tracking model is trained by using the image information in the training set; and when the frame number of the image information stored in the training set reaches a preset threshold, the new tracking model is used for replacing the original tracking model to obtain the current tracking model and the image information in the training set is removed.
Owner:HUBEI UNIV OF ECONOMICS

Broad pulse trigger type DC speed regulating system with overvoltage and overcurrent protection

The invention discloses a direct-current speed adjusting system with an overvoltage and overcurrent protection circuit. The direct-current speed adjusting system is mainly composed of a transformer T, a rectifier filter circuit, a double-closed-loop control circuit connected with an output end of the rectifier filter circuit, a fine tuning circuit connected with the double-closed-loop control circuit, a voltage stabilizing circuit connected with an auxiliary side of the transformer T, and an output circuit. The direct-current speed adjusting system is characterized in that the overvoltage and overcurrent protecting circuit is arranged between the voltage stabilizing circuit and the output circuit and composed of a protecting chip U2, a triode VT1, a triode VT2, a triode VT3, a capacitor C8 and a diode D5, one end of the capacitor C8 is connected with a CONT pin while the other end of the same passes through a capacitor C9 and then is connected with a base electrode of the protecting chip U2, and an N pole of the diode D5 is connected with a VCC pin of the protecting chip U2 while a P pole of the same is connected with a TR1 pin of the protecting chip U2. The overvoltage and overcurrent circuit can automatically execute protection action when current or voltage on an electricity load is overloaded, so that the load and the direct-current speed adjusting system are avoided being damaged.
Owner:CHENGDU CHUANGTU TECH

Method for manufacturing damascene structure

The invention discloses a method for manufacturing a damascene structure, which comprises the following steps of: forming a first dielectric layer on a semiconductor substrate; forming a metal conducting wire groove and a redundant metal groove in the first dielectric layer, wherein the metal conducting wire groove is exposed out of the semiconductor substrate; forming metal layers in the metal conducting wire groove and the redundant metal groove and on the first dielectric layer; removing the metal layer on the first dielectric layer by a chemical mechanical polishing process, and forming a metal conducting wire in the metal conducting wire groove and a redundant metal wire in the redundant metal groove; forming a graphical hard mask layer on the first dielectric layer, wherein the graphical hard mask layer is exposed out of the redundant metal wire; etching to remove the redundant metal wire by using the graphical hard mask layer as a mask so as to expose the redundant metal groove; and filling a second dielectric layer in the redundant metal groove from which the redundant metal wire is removed. By the method for manufacturing the damascene structure, coupling capacitance between the redundant metal wire and the redundant metal wire, and between the redundant metal wire and the metal conducting wire can be removed.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP

An Antenna Mounting Bracket Suitable for Narrow Spaces

The invention relates to the technical field of antenna installation, in particular to an antenna installation bracket suitable for narrow spaces. The antenna installation bracket includes a fixed frame and a transport vehicle. The transport vehicle includes an outer compartment, a brake pad, a centrifugal turntable, a dynamic friction disc and a centrifugal slider; the outer compartment is provided with wheels, the brake pad is fixedly arranged in the outer compartment, and the centrifugal turntable is installed in the outer compartment. , and is connected with the wheel transmission to rotate under the drive of the wheel, and the installation structure is arranged in the centrifugal turntable; the dynamic friction disc is arranged on the centrifugal turntable so that it can move up and down, and rotates with the centrifugal turntable; the centrifugal slider is arranged on the installation structure and is located at Below the moving friction disc. In the present invention, when the wheel drives the centrifugal turntable to rotate at an accelerated speed, under the action of centrifugal force and the guidance of the installation structure, the centrifugal slider moves outward and upward relative to the centrifugal turntable, and then pushes the dynamic friction disc to move upward and contact the brake pads to reduce the The rotation speed of the wheels can reduce potential safety hazards by actively limiting the speed of the vehicle.
Owner:无锡圣普电力科技有限公司

A bridge anti-collision device

The invention discloses a bridge anti-collision device, and mainly relates to the technical field of bridge design. The bridge anti-collision device comprises a position adjusting mechanism and an anti-collision device assembly. The position adjusting mechanism comprises a bearing frame, a vertical guide rail, a coil spring box and a pull rope. The anti-collision assembly comprises an annular sliding support, an annular box and rubber bar shafts. The annular sliding support is provided with a vertical sliding groove in sliding connection with the vertical guide rail, annular flanges are arranged on the annular sliding support, and the annular box and the rubber bar shafts are arranged between the adjacent annular flanges. Water swelling rubber is arranged in the annular box, water-perviousholes are formed in the face of the soft rubber, and the rubber bar shafts are arranged between the adjacent annular flanges and sleeved with rubber pipes. The bridge anti-collision device has the beneficial effect that the position of the device can be freely adjusted according to rising and dropping of the water level. After a ship collides with the bridge anti-collision device, the course canbe changed smoothly, the speed of the ship is not greatly influenced, and the ship can smoothly pass through the bridge anti-collision device.
Owner:ZHENGZHOU UNIVERSITY OF AERONAUTICS

Sixteen-color weft selecting device

The invention provides a sixteen-color weft selecting device. The device comprises two rows of weft selecting needles arranged in parallel, the weft selecting needles are installed in a sector-shapedshell, and the number of the weft selecting needles in each row is eight; the device is characterized in that each weft selecting needle comprises a needle head, a guide rod, an inertia impact bar anda needle tail; the needle head, the guide rod, the inertia impact bar and the needle tail are connected through a boss, the guide rod is of a hollow structure and is internally provided with a compressed spring, and force is applied to the contact surface of the inertia impact bar, so that the compressed spring abuts against and is meshed with one end of the inertia impact bar; the inner diameterof the guide rod is larger than the outer diameter of the inertia impact bar, and the length of the guide rod is greater than the length of the inertia impact bar. Accordingly, the problem that whenthe weft is changed, the movement and inertia of a color selection mechanism are large is solved, and meanwhile the problem that, when electromagnetism is used for driving weft yarn to move, an electromagnetic coil is likely to be damaged is solved; therefore, the working efficiency of a loom is improved, and the production cost is lowered.
Owner:SUZHOU TIANAO SPECIAL EMBROIDERY CO LTD
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