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54results about How to "Increase the swing frequency" patented technology

Hydraulic drive body-tail fin mode bionic underwater thruster

A bionic underwater propeller in a way of hydraulic driving body tail fins comprises more than two sections of swing devices, a tail fin and a hydraulic control unit. The swing device comprises a T-shaped stent and two hydraulic oil cylinders arranged symmetrically on the T-shaped stent; the ends of all the T-shaped stents of the swing device are sequentially articulated with the beginning end; between the adjacent T-shaped stents, relative rotation can be done; one end of the hydraulic oil cylinder is articulated with the T-shaped stent and the other end is articulated with the T-shaped stent of the next section of the swing device by means of a piston rod; each hydraulic oil cylinder is respectively provided with a nozzle tip joint connected with the hydraulic control unit; in the same moving period, when the piston rod of the hydraulic oil cylinder is in an extending stroke, the piston rod of the other hydraulic oil cylinder is in a retraction stroke; the tail fin is connected with the last section of the swing device. The bionic underwater propeller has the advantages of compact structure and high transmission efficiency, which can flexibly imitate the tail fin way of fish body to move, thus providing propulsive forces for the movement of in-water aircrafts.
Owner:NAT UNIV OF DEFENSE TECH

Arc oscillation narrow gap consumable electrode dual-layer gas shield automatic welding gun for robot

ActiveCN109604786AIncrease the swing frequencyAchieving arc swingElectrode supporting devicesSpeed wobbleEngineering
The invention provides an arc oscillation narrow gap consumable electrode dual-layer gas shield automatic welding gun for a robot. According to an arc oscillation module, a pair of incomplete gears rotating synchronously and oppositely is adopted for being alternately engaged with an oscillation gear to drive the arc oscillation module to oscillated back and forth, a pair of conic gears transmitsoscillation motion to a conducting rod of the welding gun, and a welding arc can oscillate in a narrow gap groove at a high speed according to preset frequency. A welding gun body module is of a flatstructure in a water cooling manner and can stretch into the bottom of the narrow gap welding groove, and inner-layer gas shield, welding wires and electric energy are provided for a high-temperatureweld pool. A lifting type outer gas shade module can be controlled by a robot to automatically adjust the height position according to the groove depth, and outer-layer gas shield is provided for theweld pool and nearby areas. The welding gun has higher arc oscillation frequency, the better gas shield effect and the smaller shape size, and therefore higher welding efficiency and a more stable welding process are achieved, and the welding gun is more suitable for intelligent welding application of the robot.
Owner:SHANGHAI JIAO TONG UNIV

Electromagnetic drive method and device for concrete pump truck arm fatigue tests

InactiveCN101915652AIncrease the swing frequencyImprove the uniformity of amplitudeVibration testingMagnetic tension forceElectricity
The invention discloses an electromagnetic drive method and an electromagnetic drive device for concrete pump truck arm fatigue tests. The electromagnetic drive method comprises the following steps of: fixing at least one permanent magnet at the top end of a concrete pump truck arm used for the fatigue tests; arranging a bracket below the top end of the concrete pump truck arm, and arranging an electromagnet electrically connected with a frequency converter on the bracket; and starting the frequency converter, changing magnetic poles of the electromagnet electrically connected with the frequency converter according to set frequency, and periodically changing the direction of a magnetic force between the electromagnet arranged on the bracket and the permanent magnet arranged at the top end of the concrete pump truck arm to promote the concrete pump truck arm fixedly connected with the permanent magnet to swing according to the set frequency so as to realize concrete pump truck arm fatigue tests and researches. The method of the invention has the advantages of simplicity, convenient operation, small equipment volume, low cost, simple mounting process, high flexibility, easy regulation, wide application, suitability for industrial application and capability of providing a novel drive mode for the concrete pump truck arm fatigue tests.
Owner:CENT SOUTH UNIV

Micro laser scanning device and portable terminal thereof

The invention discloses a micro laser scanning device and a portable terminal of the micro laser scanning device, wherein the micro laser scanning device comprises a light emitting component, a light receiving component and a data processing module; the light emitting component comprises a laser emitting module, a line collecting mirror and a wabbler mirror; the wabbler mirror is used for reflecting laser beam emitted by the line collecting mirror to a scanning object; the light receiving component comprises a photovoltaic conversion module and a spot collecting mirror; the spot collecting mirror is used for directly receiving and collecting lights reflected by the detected object to an illuminated face of the photovoltaic conversion module; the photovoltaic conversion module converts a light signal into an electrical signal; the data processing module processes the received electrical signal to obtain corresponding image information. The portable terminal comprises a micro laser scanning device, wherein the corresponding image information scanned by the micro laser scanning device is displayed by the display module of the portable terminal. The micro laser scanning device has the advantages of fast scanning speed, flexible layout and small power consumption.
Owner:广州市钛码电子科技有限公司

Laser radar echo processing method based on optical MEMS (micro-electro-mechanical system)

The invention proposes a laser radar echo processing method based on an optical MEMS (micro-electro-mechanical system), and the method comprises the steps that a laser radar emits a laser pulse, is reflected on an MEMS micro-galvanometer, is irradiated to the surface of a to-be-tested target, is received by a receiving lens, and is concentrated in a detecting element on a focal plane; S2, the detecting element outputs a photoelectric signal, extracts the current time Tn from the photoelectric signal, obtains the range finding data Dn, and then stores the range finding data Dn, the position number Pij of the detecting element and a current scanning angle data (theta)n for package and storage; S3, the steps S1 and S2 are repeatedly executed according to a preset sample capacity till the datasatisfying the preset sample capacity is obtained; S4, a range of a response angle of the detecting element is determined, and finally the detecting element is constrained to respond within a corresponding angle range. The method does not need an additional high-precision measurement device for assistance, and can achieve the detection, calculation and confirmation of a receiving angle of a lasersignal reflected by the to-be-tested target.
Owner:苏州镭图光电科技有限公司

Pitaya supporting device for conveniently irrigating and picking pitaya

The invention discloses a pitaya supporting device for conveniently irrigating and picking pitaya. The pitaya supporting device structurally comprises a height adjustment handwheel, a water tank, a lifting sliding plate, carrier frame mechanisms, a lifting rod and a fixed chassis, wherein the fixed chassis has a circular structure and is mounted at the bottom of the lifting rod in a welding manner; and the height adjustment handwheel is arranged on the top of the lifting rod and is connected with the lifting rod in a buckling manner. According to the pitaya supporting device disclosed by the invention, fruits pass through the middle of a supporting assembly, and can be supported by a rotating disc after the fruits are grown up; a suspension mechanism is used for suspending and positioningtree stems located at a joint of the fruits, so that dragging of the bottoms of the fruits can be avoided; a through hole formed in the middle of the rotating disc is used for enabling the fruits to pass through during fruiting, so that the fruits are wrapped by using the rotating disc after being grown up, so that cutting and separation are conveniently carried out by using a cutting edge later;and a spray disc arranged in the rotating disc can comprehensively irrigate and spray the surfaces and the bottoms of the fruits, so that nutrition absorption capacity of the fruits is effectively improved, the situation that the sizes of the grown-up fruits are close is ensured, and the sale benefits are increased.
Owner:YULIN NORMAL UNIVERSITY

Bluetooth sound box with suspension function

The invention discloses a Bluetooth sound box with a suspension function, and relates to the technical field of Bluetooth sound boxes. The sound box comprises a sound box body, strip-shaped heat dissipation holes are formed in the back face of the sound box body, fixing rings are fixed to the left side and the right side of the sound box body, elastic clamping rods are slidably installed on the front faces of the fixing rings in a penetrating mode, a heat dissipation device is arranged on the back face of the sound box body, and a bracket device is arranged on the outer side of the sound box body. The bracket device comprises a U-shaped column, clamping tooth rings are fixed to the left end and the right side of the inner side of the U-shaped column, the clamping tooth rings are rotationally installed on the outer wall of the loudspeaker box body, and the elastic clamping rods are connected with the interiors of the clamping tooth rings in a clamped mode. According to the Bluetooth loudspeaker box, the elastic clamping rod is matched with the clamping tooth ring, the elastic clamping rod is pulled out, so that the clamping tooth ring is not clamped by the elastic clamping rod any more, the loudspeaker box body is not rotated any more, the purpose of adjusting the angle position of the loudspeaker box body is achieved, and the convenience of the Bluetooth loudspeaker box is improved.
Owner:SHENZHEN HAIXINWANG ELECTRONICS CO LTD

Airflow circulating constant-temperature powder coating storage device

InactiveCN111169828APrevent coagulationAchieve the effect of stirring while keeping warmLarge containersTank wagonsGear wheelEngineering
The invention relates to the technical field of constant-temperature storage, and discloses an airflow circulating constant-temperature powder coating storage device. The device comprises a box body,wherein a first gear is movably connected with the top of the box body, a second gear is meshed with the surface of the first gear, one side, away from the first gear, of the second gear is fixedly connected with air inlets, a constant-temperature mechanism is fixedly connected with one sides, away from the second gear, of the air inlets, fan blades are movably connected to the surfaces of the first gear and located on the two sides of the second gear, and the constant-temperature mechanism comprises a shell. Thus, the force for blowing the fan blades to rotate is less than the force that hotairflow blows and rotates, that is, the rotation of a rotating rod is also slower, the relationship between the fluidity and the temperature of powder coating is met, the lower the temperature of therotating rod is, and the lower the fluidity of the powder coating is, so that by the design, the stirring force is increased to prevent the powder coating from solidifying when the internal temperature is low; and when the internal temperature is high, the cold airflow is introduced, and the stirring force is reduced.
Owner:刘烁

Hydraulic drive body-tail fin mode bionic underwater thruster

A bionic underwater propeller in a way of hydraulic driving body tail fins comprises more than two sections of swing devices, a tail fin and a hydraulic control unit. The swing device comprises a T-shaped stent and two hydraulic oil cylinders arranged symmetrically on the T-shaped stent; the ends of all the T-shaped stents of the swing device are sequentially articulated with the beginning end; between the adjacent T-shaped stents, relative rotation can be done; one end of the hydraulic oil cylinder is articulated with the T-shaped stent and the other end is articulated with the T-shaped stentof the next section of the swing device by means of a piston rod; each hydraulic oil cylinder is respectively provided with a nozzle tip joint connected with the hydraulic control unit; in the same moving period, when the piston rod of the hydraulic oil cylinder is in an extending stroke, the piston rod of the other hydraulic oil cylinder is in a retraction stroke; the tail fin is connected withthe last section of the swing device. The bionic underwater propeller has the advantages of compact structure and high transmission efficiency, which can flexibly imitate the tail fin way of fish bodyto move, thus providing propulsive forces for the movement of in-water aircrafts.
Owner:NAT UNIV OF DEFENSE TECH

Environmental protection device for road dust removal by utilizing new energy

The invention relates to the technical field of environmental technical equipment. The invention further discloses an environmental protection device for road dust removal by utilizing new energy. Thedevice comprises a lamp holder, a magnetic group is connected to the upper end of a fixing cylinder, a first coil is arranged on the outer side of a first coil holder, a second coil is arranged in asecond coil holder, a spring is connected to the lower side of the middle of a sound power generation device, a U-shaped vibrating reed is connected to the upper end of the spring, and a limiting ringis arranged on the upper portion of the U-shaped vibrating reed. Fan blades drive the first coil holder and the first coil on the first coil holder to rotate through a rotating shaft, and the first coil cuts magnetic induction lines in a first magnetic group. The U-shaped vibrating reed on the spring is driven to swing through the vibration of a running automobile, sound waves of sound impact theU-shaped vibrating reed, automobile vibration is transmitted to the vibrating reed through the spring, so that the vibrating reed generates resonance. Electric energy generated in the first coil andthe second coil is stored in an electric power storage device. The structure solves the problem that a cleaning device does not have multiple energy sources for energy supply.
Owner:绍兴市览海环保科技有限公司

Urban telecommunication signal tower

The invention relates to the technical field of communication, and discloses an urban telecommunication signal tower. The signal tower comprises a base, wherein a main support is fixedly welded to the upper surface of the base, an outer fixed ring is fixedly welded to the outer surface of the main support, a connecting shaft is fixedly welded to the outer surface of the outer fixed ring, a mounting cylinder is fixedly welded to the end, away from the outer fixed ring, of the connecting shaft, an inner ball cake is fixedly welded to the end, away from the base, of the mounting cylinder, an inner magnetic plate is fixedly welded to the outer surface of the inner ball cake, an outer magnetic plate is movably connected to the outer surface of the inner magnetic plate, an outer sliding rod is slidably connected to the outer surface of the outer magnetic plate, an outer universal joint is fixedly welded to the outer surface of the outer sliding rod, a connecting rod is fixedly welded to the surface of the side, away from the outer sliding rod, of the outer universal joint, and an outer cylinder is fixedly welded to the end, away from the outer universal joint, of the connecting rod. According to the urban telecommunication signal tower, the base and the building body are fixedly installed, and birds can be prevented from inhabiting through the outer cylinder.
Owner:河北中孚通讯设备有限公司

Pedal type screening device

The invention discloses a pedal type screening device. The device comprises a base, a sieve, an arm-rest frame, a ratchet wheel, two pedals and a seat. The arm-rest frame is arranged in the middle ofthe base. A supporting hanging rod is arranged at the front end of the base. Guide grooves are formed in the arm-rest frame and the supporting hanging rod correspondingly. A sieve bracket is hung on the supporting hanging rod. The sieve is arranged on the sieve bracket. A guide rod is arranged at the front end of the sieve bracket, and a push rod is arranged at the rear end of the sieve bracket. The front portion of the guide rod is located in the guide groove formed in the supporting hanging rod, the push rod is located in the guide groove formed in the arm-rest frame, and the rear segment ofthe push rod is in sliding connection with the ratchet wheel. A seat frame is arranged at the rear end of the base. The seat is mounted on the seat frame. Two ratchet wheel seats are arranged on theportion, behind the arm-rest frame, of the base. An axletree is mounted on the upper portions of the two ratchet wheel seats. The two pedals are mounted at the two ends of the axletree in a 180-degreeintersecting mode, and the ratchet wheel is fixed to the middle of the axletree and located between the two ratchet wheel seats. The pedal type screening device adopts a riding mode to replace pure manual oscillating and can be used for both laboratory soil sample screening and peasant household grain screening, the labor intensity is relieved, and the working efficiency is improved.
Owner:张靖宜

Used in the process of lead smelting, oxygen-enriched side-blowing furnace smoke and dust secondary recycling device and its process method

The invention discloses an oxygen-enriched side-blowing furnace smoke dust secondary return utilization device and a process method thereof in the lead smelting process, and relates to the technical field of oxygen-enriched side-blowing furnace lead smelting. The device used for the secondary return of oxygen-enriched side-blowing furnace smoke and dust in the lead smelting process includes a furnace body, a furnace cover is installed on the top of the furnace body, a recovery mechanism is fixedly installed on the inner side of the upper end of the furnace body, and a cleaning mechanism is installed on the inner side of the recovery mechanism. The ash mechanism, the raw material rack is installed movable inside the lower end of the furnace body, the oxygen inlet is fixedly installed on the left side of the lower end of the furnace body, and the recovery mechanism includes a fixed block, a smoke inlet, a diversion mechanism, a motor, a diversion groove, and a smoke collection piece , out of cigarette butts and dust net. This device is used for secondary recycling of oxygen-enriched side-blowing furnace dust in the process of lead smelting. It is equipped with a recovery mechanism to collect and utilize the secondary soot, and cooperates with the ash cleaning mechanism to avoid the fine particles in the soot when the recovery mechanism recovers the secondary soot. Particles adhere to the inner wall of the device, which adversely affects the working efficiency of the device.
Owner:HUBEI DABEIJIANG ENVIRONMENTAL TECH CO LTD

Preparation method and powder feeding device of ceramic powder reinforced metal base welding layer

The invention discloses a preparation method for a ceramic powder-reinforced metal-matrix welding layer. The preparation method for the ceramic powder-reinforced metal-matrix welding layer comprises the following steps: carrying out pretreatment on a metal matrix, an alloy powder and a ceramic powder; setting plasma surfacing process parameters according to the material of the metal matrix, and determining a powder feeding temperature of a powder feeding device; placing the metal matrix on a workbench, starting up a plasma surfacing machine and the powder feeding device, enabling the powder feeding device to automatically travel, detecting the temperature distribution of a metal molten pool and transmitting a temperature field to a control device for the powder feeding device by a temperature induction device, calculating the position of a set powder feeding temperature in the molten pool to determine the position of the powder feeding device by the control device, and enabling the ceramic powder to fall into a specified temperature area in the molten pool by adjusting the included angle of an outer powder feeding pipe; and controlling the outer powder feeding pipe of the powder feeding device to carry out pendular movement. According to the preparation method for the ceramic powder-reinforced metal-matrix welding layer, determination for a powder falling point of outer powderfeeding is facilitated; and meanwhile, the problems of serious powder burning loss and low powder utilization rate are solved.
Owner:WUHAN UNIV OF TECH

Power distribution box for power transmission line modular design

The invention discloses a power distribution box for power transmission line modular design. The power distribution box comprises a power distribution cabinet body, power distribution devices are uniformly arranged in the power distribution cabinet body, and ventilation adjusting mechanisms are uniformly arranged at the vertical position of the right side in the power distribution cabinet body; heat conduction rods penetrate through the upper and lower ends of the left side in the power distribution cabinet body and are slidably connected with the upper and lower ends of the left side in the power distribution cabinet body, a contact adjusting mechanism is fixedly connected to the end, located in the power distribution cabinet body, of each heat conduction rod, and an air rod is fixedly connected to the left side in the power distribution cabinet body and located at the side, close to the middle, of the heat conduction rod; a corrugated blocking piece is movably connected into the right side of a storage supporting plate, a contact pressing piece is fixedly connected to the vertical position of the right end of the corrugated blocking piece, and the end, located outside the power distribution cabinet body, of the heat conduction rod is uniformly and fixedly connected with the distributed heat dissipation rods. The invention relates to the technical field of power transmission lines, and according to the power distribution box for the power transmission line modular design, the air environment of the power distribution devices at the upper and lower positions is blocked, the heat conducted to the air pressure part is reduced, and the overall working efficiency of the power distribution cabinet is guaranteed.
Owner:翁瑞

Oilstone rocking mechanism for ultra-precise grinding process of bearing outer ring channel

The invention discloses an oilstone rocking mechanism for an ultra-precise grinding process of a bearing outer ring channel, and relates to the technical field of bearing processing. The oilstone rocking mechanism comprises a pull rod, a swing rod, a supporting base and a motor; a rotating block is mounted at one end of the output shaft of the motor; the rotating block and the output shaft of themotor are arranged coaxially; one end of the pull rod is movably connected to an edge of the bottom of the rotating block; the other end of the pull rod is movably connected to a swing block; the rotating block, the pull rod and the swing block constitute an eccentric transmission mechanism; one end of the swing rod is connected with the swing block; the other end of the swing rod passes through the supporting base and used for mounting a grinding device; when the output shaft of the motor rotates, the pull rod moves back and forth and pushes the swing block to swing, and further drives the swing rod to swing along the shaft, therefore, the grinding device is driven to swing; a first spring is arranged on the swinging rod; one end of the first spring is connected to the swinging rod; and the other end of the first spring is fixed directly below the swinging rod. The oilstone rocking mechanism is relatively high in swing frequency, uniform in swing speed and stable in oilstone pressure,and can improve the qualification rate of products.
Owner:HUNAN MEIBEIDA TECH CO LTD
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