Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

88results about How to "Improve vibration" patented technology

An aerogel sound-electric conversion device with sound absorption and power generation functions and a preparation method thereof

This invention belongs to the field of acoustic-to-electric conversion technology, and discloses an aerogel acoustic-to-electric conversion device with both sound absorption and power generation functions, as well as its preparation method. The aerogel acoustic-to-electric conversion device of this invention includes a nanofiber aerogel layer, electrode layers respectively disposed on opposite sides of the nanofiber aerogel layer, and a clamp for fixing the nanofiber aerogel layer and the electrode layers. The nanofiber aerogel layer comprises a three-dimensional porous structure composed of piezoelectric nanofibers. The electrode layers include a substrate and a conductive layer disposed on one side of the substrate. The electrode layers have a through-hole array, and the conductive layer is in contact with the nanofiber aerogel layer. The aerogel acoustic-to-electric conversion device of this invention can achieve the conversion of sound wave-induced mechanical energy into electrical energy while maintaining the sound absorption performance of the aerogel, and is suitable for scenarios such as noise absorption, sound energy harvesting, and self-powered sensing.
Owner:GUANGDONG VOCATIONAL & TECHNICAL COLLEGE

Portable efficient vibrating device for aluminum mold

The invention relates to a portable efficient vibrating device for an aluminum mold, and belongs to the technical field of concrete vibrating, the portable efficient vibrating device comprises two moving seats, the two moving seats are located on the inner side and the outer side of a mold plate correspondingly, moving wheels are arranged at the bottoms of the moving seats, and the moving wheels are rotationally arranged on the moving seats; the rotating axes of the moving wheels are perpendicular to the bottom of the moving seat and parallel to the bottom of the moving seat, and a driving device used for driving the moving wheels to rotate so as to adjust the position of the moving seat is arranged on the moving seat; a telescopic arm is arranged at the top of the moving seat, the telescopic arm is of a telescopic structure, the telescopic arm is hinged to the top of the moving seat, a mounting plate is hinged to the tail end of the telescopic arm, a plurality of vibrators are arranged at the bottom of the mounting plate, and the vibrators are arranged on the mounting plate in a rectangular array mode; the eccentric end of the vibrator is used for entering concrete. The concrete vibrating device has the effect of conveniently vibrating concrete.
Owner:WUHAN ENGINEERING CO LTD OF CHINA RAILWAY SEVENTH GROUP +2

A drying device for tea production that facilitates sieving.

ActiveCN224285192UAvoid insufficient dryingprevent pilesSievingScreeningAgricultural engineeringTea leaf
This utility model discloses a tea drying device for easy sieving, comprising: a support frame on which an installation frame is rotatably mounted via a shaft; a platform located inside the installation frame, connected to the frame via an elastic connection, with evenly distributed sieve holes in the center of the platform; an arc-shaped slide rail fixed to one end of a shaft of the installation frame; and a sliding seat located on one side of the arc-shaped slide rail, with rollers rotatably mounted on the outer wall of one side of the sliding seat, the rollers rolling within the arc-shaped slide rail. This utility model, through the structure of the platform and arc-shaped slide rail, allows tea leaves to be placed on the platform for drying. A translation drive mechanism moves the rollers, which in turn presses down on the arc-shaped slide rail, causing it to tilt, thus tilting the platform and allowing the tea leaves to move on it, preventing insufficient drying of the tea leaves at the bottom. During the movement of the tea leaves, the sieve holes remove impurities from the tea leaves.
Owner:HANGZHOU ZHIJIANG TEA CO LTD

Dynamic balancing method for vibration problem of gas turbine unit shafting misalignment

The present application relates to the field of gas turbine technology, and more particularly to a dynamic balancing method for the misalignment vibration problem of a gas turbine unit shaft system, which comprises the following steps in sequence: step A, implementing a first dynamic balancing weight scheme on a first weight plane of the gas turbine rotor; and step B, implementing a second dynamic balancing weight scheme on a second weight plane of the gas turbine rotor, wherein the weight angle of the second dynamic balancing weight scheme is 180 degrees different from the weight angle of the first dynamic balancing weight scheme. The dynamic balancing method for the misalignment vibration problem of the gas turbine unit shaft system according to the present application selects two weight planes to implement opposite weight, and the generated weight bending moment can balance the additional bending moment, so that the vibration condition of the unit is obviously improved. Different from the traditional influence coefficient method, the dynamic balancing method according to the present application directly attacks the essence of the vibration problem, reduces the number of starting machines and the resulting psychological pressure, saves considerable test cost, and has good application effect and promotional value.
Owner:SHANGHAI ELECTRIC GAS TURBINE CO LTD

A rapid pouring mold for assembling a prefabricated monolithic bidirectional dense-rib composite floor slab concrete bottom plate

The utility model discloses a kind of rapid pouring mould of assembly integral type two-way dense rib composite floor slab prefabricated concrete bottom plate, including bottom plate, first intermediate plate, second intermediate plate, first side edge plate, second side edge plate and third side edge plate.The pouring mould in the utility model has fast pouring speed, is easy to vibrate, easy to demould, can greatly reduce construction error and construction difficulty, while improving pouring efficiency, realize the promotion of assembly building efficiency.
Owner:NANJING COMM INST OF TECH

electric toothbrush

ActiveCN218899764U8Improve shock absorption and cushioning effectimprove protectionNon-rotating vibration suppressionTooth cleaning
This application provides an electric toothbrush, including a housing, a mounting bracket, a motor, a display screen, and a first buffer: the housing has a receiving cavity and a window communicating with the receiving cavity; the mounting bracket is disposed within the receiving cavity; the motor is disposed within the receiving cavity and mounted on the mounting bracket; the display screen is mounted on the side of the mounting bracket facing the inner surface of the housing, and the opposite sides of the display screen are respectively positioned opposite the motor and the window; the first buffer is sandwiched between the display screen and the inner surface of the housing to buffer the vibration of the display screen relative to the housing, and / or, sandwiched between the display screen and the mounting bracket to reduce the vibration transmitted from the motor to the display screen through the mounting bracket, thereby protecting the display screen through shock absorption and improving the stability of the display screen on the mounting bracket and the display stability during display.
Owner:GUANGZHOU STARS PULSE CO LTD

Compressor mounting structure and vehicle

ActiveCN224702829Ureduce vibrational energyimprove vibration
This utility model relates to a compressor mounting structure and a vehicle. The compressor mounting structure includes a compressor bracket, a compressor, and a vehicle housing frame. The compressor bracket includes a bracket body, a vibration damping bushing, and a flexible component. The bracket body includes a first sub-section and a second sub-section. The vibration damping bushing is disposed on the first sub-section and is used to connect to the compressor. The second sub-section has a mounting portion and is connected to a vehicle housing crossbar in the vehicle housing frame via a first fastener that mates with the mounting portion. The flexible component is disposed on the second sub-section, protruding from the second sub-section toward the compressor, and a gap is formed between the flexible component and the compressor. Using this compressor mounting structure can optimize the vibration and noise performance of the entire vehicle.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Multi-stage oil-free linear valved compressor

The embodiment of the invention provides a multi-stage oil-free linear valved compressor which comprises a compressor device, and the compressor device comprises a driving assembly and a stepped compression mechanism. The stepped compression mechanism comprises a compression piston and a cylinder body, the compression piston is provided with protrusions in the first direction to form a stepped shape, and multiple sections of air cylinders which are different in radius and communicate with one another are arranged in the cylinder body in the first direction to form multiple sections of unequal-diameter air cylinder bodies. The compression piston is in clearance fit with the multiple sections of cylinder bodies with different diameters to form at least two compression cavities with different radiuses; and the driving assembly is used for driving the compression piston to do reciprocating motion in the compression cavity in the first direction to achieve multi-stage gas compression. Multi-stage gas compression is achieved through the stepped compression mechanism, the problems of pollution, vibration and low efficiency of a traditional compressor in an oil-free environment are solved, and the oil-free compressor has the advantages of oil-free operation, efficient compression, low vibration and high reliability.
Owner:LIHAN CRYOGENICS

A track leveling device for railway track laying construction

ActiveCN121451472BPerceive density in real timePerceive altitude in real timeBallastwayMeasuring apparatusTrackwayStructural engineering
The present application discloses a kind of track leveling equipment for railway track laying construction, it is related to track traffic equipment technical field, the present application includes track and tamping car, further include: two leveling components, leveling component is used to the ballast around the sleeper is leveled and is handled, the leveling component includes fixed plate, and fixed plate bottom sliding installation has push flat plate, push flat plate is installed on ballast take-off mechanism, ballast take-off mechanism is used to the ballast around the sleeper is collected or the ballast of collected discharge according to the moving distance of push flat plate relative to fixed plate.Occupation is in: can be self-adapting leveling before tamping and real-time sensing ballast compactness and height, and utilize the displacement of push flat plate in leveling process automatically stepless regulation tamping vibration intensity, while the displacement of push flat plate can also trigger ballast take-off mechanism, realize the collection of excess ballast or the release filling of collected ballast, greatly improve tamping quality, energy efficiency and track laying precision.
Owner:ANHUI HONGLIDA CONSTR ENG CO LTD

Classified weighing device capable of being used for powder with different particle sizes

The utility model provides a classified weighing device capable of being used for powder with different particle sizes, and belongs to the technical field of weighing devices. The classifying and weighing device capable of being used for the powder materials with the different particle sizes comprises a main body and a screening mechanism, the main body comprises a working box, a supporting plate is installed in the working box, a pair of long grooves are formed in the supporting plate, discharging pipes are connected into the pair of long grooves, and electromagnetic valves are arranged outside the pair of discharging pipes in a sleeving mode; the screening mechanism comprises a screening box, a feeding opening is formed in the upper end of the screening box, a mounting frame is mounted in the screening box, a transverse plate is mounted at the bottom end of the mounting frame, and a feeding opening is formed in the upper end of the transverse plate. A pair of vertical rods is movably inserted into the transverse plate, a first screening cover is installed between the vertical rods, a second screening cover is installed at the upper end of the first screening cover, and screen plates are installed in the first screening cover and the second screening cover correspondingly.
Owner:MAOMING HAOHAN BUILDING MATERIALS CO LTD

DEVICES, SYSTEMS AND METHODS FOR CONTROLLING AND MONITORING FORCE, SPEED AND VIBRATION OF ACTIVE VIBRATION CONTROLS

ActiveIT202600027457T2improve vibration
A method for active vibration control system (AVCS) monitoring and control is disclosed. The method comprises receiving inputs to a protection monitor to monitor one or more force generators, comparing the inputs to one or more values, and shutting down or adjusting the one or more force generators if the one or more force generators are determined to be operating at an undesired condition.
Owner:LORD CORP

Tire carbon black collecting device

ActiveCN224185005UAchieving the purpose of clean-upimprove vibrationLarge containersReciprocating motionStructural engineering
The utility model relates to the technical field of carbon black collection, in particular to a tire carbon black collection device which comprises a collection hopper, an annular tooth groove is formed in the outer side of the top end of the collection hopper, a sliding frame is arranged on the edge of the top end of the collection hopper, and a driving mechanism in transmission fit with the annular tooth groove is installed on the top of the sliding frame. An ash spraying assembly is slidably installed on one side of the top end of the sliding frame, the top end of the ash spraying assembly is connected with an air guide pipe, a reciprocating lifting assembly connected with the top end of the ash spraying assembly is installed on the top of the sliding frame, and the reciprocating lifting assembly is in transmission connection with the driving mechanism. The reciprocating lifting assembly drives the ash spraying assembly to move up and down in a reciprocating mode, so that the interval between the ash spraying assembly and the collecting hopper is intermittently close to or away from each other, and ash spraying airflow does not blow ash to the inner side of the collecting hopper at the same pressure any more; and the bonded carbon black can be promoted to vibrate and be stripped from the inner wall of the collecting hopper by utilizing different soot blowing airflow pressures, so that the cleaning effect is improved.
Owner:ANHUI YUANBANG OAK TECHNOLOGY CO LTD

Blockage removing device for air shower air return net

ActiveCN224195554UAchieve limit fixation effectachieve collection effectTransportation and packagingCleaning using gasesMechanical engineeringScreen filter
The utility model relates to the technical field of air showers, in particular to a blockage clearing device for an air return net of an air shower, which comprises a main body, a fan mechanism and a ventilation net are fixedly connected to the top end of the main body, and a door leaf is movably connected to the front side of the main body. The cleaning assembly comprises an outer connecting shell and an inner connecting shell which are arranged in a matched mode, an air exhaust mechanism is arranged in the inner connecting shell, an air return opening is formed in the surface of the inner connecting shell, and the upper end and the lower end of the inner side of the outer connecting shell are fixedly connected with a second mounting base and a first mounting base respectively. The effect of pushing a cleaning plate to slide and adjust in the outer connecting shell is achieved through a push rod, the effect of dredging and cleaning filter holes in the surface of the filter screen assembly is achieved through the cleaning plate and cleaning strips on the surface of the cleaning plate, and the effect of facilitating movable connection of the cleaning plate in the outer connecting shell is achieved through a mounting support; and the effect that the whole filter screen assembly is conveniently driven by the vibration mechanism to vibrate is achieved through the spring rods.
Owner:WUHAN GREEN BEAUTY CLEAN TECH ENG CO LTD

Pressure reducing valve and fuel cell vehicle

This application belongs to the field of valve technology, specifically relating to a pressure reducing valve and a fuel cell vehicle. The pressure reducing valve includes an inlet connector and a gas outlet; a primary pressure reducing assembly includes a primary pressure reducing valve body and a primary pressure reducing component, the primary pressure reducing component being inserted into the primary pressure reducing valve body. The primary pressure reducing component includes a primary pressure reducing section, with the gas outlet portion of the inlet connector inserted into the primary pressure reducing valve body, and the primary pressure reducing section and the gas outlet being positioned opposite each other. In a first direction, the cross-sectional area of ​​the primary pressure reducing section gradually decreases in a second direction, and the first direction intersects the second direction. This solution, through the primary pressure reducing section, can reduce the noise generated during gas pressure reduction, improving the vehicle's noise, vibration, and acoustic roughness characteristics.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Euro 7 emission standard-oriented enhanced ferrite nitrocarburizing oxidation treatment method for brake disc

The invention provides a method for treating a brake disc through enhanced ferrite nitrocarburizing oxidation and the brake disc manufactured through the method. The brake disc is subjected to stress relief annealing, multi-stage pre-oxidation treatment, multi-stage nitriding treatment, multi-stage post-oxidation treatment and cooling treatment; and key parameters such as process temperature, atmosphere concentration and treatment duration of each stage are regulated and controlled. According to the brake disc manufactured through the treatment, the abrasion resistance is remarkably improved, the rust resistance and the corrosion resistance are enhanced, and the thickness of the white bright layer is uniform and consistent. The brake disc treated by adopting the method disclosed by the invention smoothly passes a braking particulate matter emission test of the Europe 7 standard, and the dual advantages of the brake disc in the aspects of environmental protection performance and braking performance are proved.
Owner:CHONGQING SANYOU FUTURE AUTOMOTIVE TECHNICAL SERVICE CO LTD

Primary and secondary separation composite sleeve pole-mounted circuit breaker

The utility model discloses a primary and secondary separation composite sleeve column-mounted circuit breaker, which comprises a support frame, an upper insulator, a middle insulator and a disconnecting link, a driving mechanism is arranged at the lower end of the support frame, the driving mechanism comprises a fixed frame fixedly connected to the lower end of the support frame, the lower end of the fixed frame is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with the middle insulator. And the front end of the mounting plate is fixedly connected with a metal plate. According to the on-column circuit breaker for primary and secondary separation and combination, the motor drives the rotating disc to rotate, so that the rotating disc swings the hitting ball through the connecting rope, and the hitting ball swings towards the outer side of the rotating disc under the inertia effect, so that the hitting ball is in contact with the metal plate; the purpose that the hitting ball conveniently passes through the friction strip and the metal plate to generate vibration force is achieved, then the metal plate makes a sound, the sound expels birds, and the birds are prevented from nesting on the surfaces of the upper insulator, the middle insulator and the lower insulator.
Owner:HONLE ELECTRIC CO LTD

Structure for improving stress of exhaust pipe and upper cover of partitioned high-pressure cavity

The invention relates to a structure for improving stress of an exhaust pipe and an upper cover through a partitioned high-pressure cavity. According to the technical scheme, the problem that the stress of the exhaust pipe and the upper cover is too large due to sharp increase of refrigerant flow under the high-rotating-speed working condition of a variable-frequency scroll compressor is solved. The structure comprises an upper partition high-pressure cavity and a lower partition high-pressure cavity which are formed by a heightened upper cover and a partition baffle, and a shunting path controlled by a spring steel reed valve, a refrigerant only flows through a lower area at low rotating speed, and the reed valve is opened at high rotating speed to form a third shunting airflow, so that the vibration stress is effectively reduced, and the energy efficiency is considered.
Owner:DALIAN SANYO COMPRESSOR

Seal assembly and gas turbine

The application discloses a sealing assembly and a gas turbine, which comprises a front baffle, a high-pressure finger ring, a low-pressure finger ring and a rear baffle connected in sequence from a high-pressure side to a low-pressure side, wherein the low-pressure finger ring is provided with an axial shoe arranged along an inner ring circumference of the low-pressure finger ring, the axial shoe extends in a direction away from the high-pressure finger ring on the low-pressure finger ring shaft, the axial shoe has a sealing surface facing a central axis of the low-pressure finger ring, and the sealing surface is provided with an abradable seal coating. The sealing assembly of the application, wherein the axial shoe on the low-pressure finger ring and the abradable seal coating on the sealing surface thereof can form self-adaptive contact with a rotor surface, thus ensuring the sealing effect and avoiding scratching the rotor; meanwhile, the finger seal structure can realize high-efficiency sealing in a small axial space, thereby shortening the length of the gas turbine rotor, improving the rotor vibration problem, and significantly improving the sealing reliability and the overall operation efficiency of the gas turbine.
Owner:CHINA UNITED GAS TURBINE TECH CO LTD

Electric drive system with hydraulic torque converter and forklift

PendingCN121993594ALift climbImprove starting performanceLifting devicesFluid gearingsReduction driveDrive motor
The invention relates to the technical field of electric driving systems, and discloses an electric driving system with a hydraulic torque converter and a forklift. The system comprises a driving motor, a hydraulic torque converter, a speed reducer and a vehicle control unit, wherein a lock-up clutch is integrated in the hydraulic torque converter; an output shaft of the driving motor is connected with a pump wheel input side of the hydraulic torque converter; a turbine output side of the hydraulic torque converter is connected with an input shaft of the speed reducer; the output end of the reducer is connected with a vehicle drive axle; when the vehicle is in the low-speed large-torque demand working condition, the lock-up clutch is controlled to be separated, so that the hydraulic torque converter works in the torque conversion working condition, and when the vehicle is in the low-speed large-torque demand working condition, the lock-up clutch is controlled to be separated; and when the vehicle is in a high-speed small-torque demand working condition, the lock-up clutch is controlled to be engaged, so that the pump wheel of the hydraulic torque converter is mechanically locked with the turbine, and the vehicle is in a coupler working condition. The power performance and the energy efficiency of the vehicle are improved, the cost of the electric drive system is reduced, and the economical efficiency and the NVH performance are improved.
Owner:ANHUI HELI CO LTD

An experimental sample analysis station

The utility model is suitable for laboratory equipment technical field provides an experimental sample analysis detection platform, the experimental sample analysis detection platform includes: installation platform, detection component, swing component and display component, detection component is used for gathering the image of sample on detection position, swing component is used for driving the swing of container on connecting frame, display component is used for receiving the output signal of detection component and shows the image of sample that detection component gathered. The utility model is used for the installation of detection component and swing component on the front of installation platform, is used for the swing component of swing container to facilitate the sample in the oscillation container, utilizes detection component to detect the sample on detection position and exports the electric signal to be received by display component and shows the image information of sample to facilitate the observation of experimental personnel, and the experimental personnel need not to carry sample to shift on different table top when carrying out sample analysis, thereby improves the experimental efficiency and avoids the error of experiment caused by the pollution of sample introduction.
Owner:COMPREHENSIVE TESTING CENT OF CHINA ACAD OF INSPECTION & QUARANTINE SCI

Broadband wireless transmission box adaptive to severe environment

The utility model relates to a broadband wireless transmission box adapted to a severe environment, which comprises a shell and a shell cover, thread mounting cylinders are arranged at four corners in the shell, an internal heat dissipation groove is arranged in the shell, a plurality of module mounting screw holes are arranged in the shell, and the shell cover is arranged in the shell. Mounting plates are fixedly connected to the front side face and the rear side face of the shell, mounting holes are formed in the surfaces of the mounting plates, external heat dissipation grooves are formed in the surface of the shell cover, a modular heat dissipation area is arranged in the middle of the shell cover, and threaded holes are formed in the four corners of the shell cover. The broadband wireless transmission box adapting to the severe environment is mainly suitable for long-distance, high-throughput and anti-interference data transmission scenes, modular integration and brand-new shell design are carried out on the internal structure design, the system stability, the heat dissipation capability and the installation convenience are improved through structure optimization, and the broadband wireless transmission box adapting to the severe environment is suitable for popularization and application. And the device is practical.
Owner:ASCEND IT CO LTD

Tower crane anti-vibration device

PendingCN121876128Areduce shakingReduce violent shaking and other phenomenaCounterweightsShock proofingUnit loadMachine
The invention relates to the field of petroleum machinery, and discloses a tower crane anti-vibration device which comprises a swing arm frame, the swing arm frame is used for being connected with a tower crane, and a center ring is fixedly connected to the middle of the swing arm frame; the balancing weight is used for balancing the whole tower crane, two clamping grooves are formed in one side of the balancing weight, and the balancing weight slides on the outer side wall of the limiting support through the clamping grooves; the front side wall of the bearing back plate is fixedly connected with a bearing bottom plate, and the bearing back plate and the bearing bottom plate are used for placing a balancing weight. Four sets of devices are installed at the bottom of a tower crane, when strong wind comes, balancing weights of the devices move in the opposite direction, so that the shaking degree of a building is reduced, meanwhile, the number of first clamping blocks can be properly increased or decreased according to the load of an oil pumping unit, and the working efficiency is improved. Therefore, the phenomena that a guide wheel is easy to wear, vibration is large, a foundation sinks, a machine body inclines and shakes, a weight box grinds a machine frame, and the whole machine, a beam hanger and a wellhead device shakes violently due to strong wind are reduced.
Owner:DAQING OILFIELD CO LTD +1

Fabric wrinkle prevention and dyeing device

ActiveCN120889108BEffectively stretches and smoothes wrinklesEffectively stretch and smooth out internal stress
The application discloses a fabric wrinkle-proof dyeing device, which comprises a dyeing cylinder, a feeding flattening treatment mechanism and a discharging flattening treatment mechanism. The feeding mechanism is provided with a flattening roller and an impurity treatment module. The flattening roller can stretch and shake the fabric by reverse rotation. The impurity treatment module can remove surface impurities by a brush part and an adsorption system. The discharging mechanism is provided with a beating module and a steam system. The steam nozzle can make the fiber expand and stretch, and the beating plate can further remove wrinkles by high-frequency elastic beating. The device is driven by a single motor and has multiple functions through mechanical linkage design. The device can effectively improve the flatness and quality of fabric dyeing, and reduce energy consumption and system complexity.
Owner:SHAO XING XIAN CHAO CHAO RAN ZHENG YOU XIAN GONG SI

A car snail horn

This utility model discloses a car snail horn, relating to the field of car horn technology. Specifically, a car snail horn includes a car front panel, with a horn body mounted on the outside of the front panel. The horn body has a horn amplification port for increasing sound volume. A connecting rod is provided between the horn body and the front panel. A quick-installation device is provided on the outside of the horn body to allow for rapid installation onto the front panel. By inserting the connecting rod into a positioning and fixing assembly, rotating the sliding compression assembly to compress the positioning and fixing assembly causes deformation until it is fixed, thus quickly installing the snail horn onto the front panel. A dustproof device is installed at the horn opening, blocking splashed dust. Pressing the horn vibrates the dustproof device, causing the dustproof net to vibrate and clean the dust.
Owner:ZHEJIANG LISHUI DEV AUTO PARTS CO LTD

A self-adaptive vibration isolation control method for a phase separation closed bus

ActiveCN116774580BEffective vibration suppressionreduce vibrationAdaptive controlKnowledge based models
The application discloses a self-adaptive vibration isolation control method for a phase-separated closed bus, and is characterized in that an equivalent fourteen-degree-of-freedom vibration isolation system dynamic model is established in combination with the internal structure of the phase-separated closed bus and the phase interval installation mode of a magneto-rheological elastomer vibration isolator; after input and output variables of the dynamic model are determined, a fuzzy controller is designed, the input variables are fuzzed, fuzzy rules are formulated, and output variables are obtained after defuzzification; and the quantization factor parameters of the fuzzy controller are determined, the calculated control current is output to the magneto-rheological elastomer vibration isolator, and the stiffness and damping of the vibration isolator are changed. The self-adaptive vibration isolation control method can fully exert the mechanical characteristics of variable stiffness and variable damping of the magneto-rheological elastomer vibration isolator, efficiently suppress the vibration generated under normal working and short-circuit current conditions of the phase-separated closed bus, and has important practical significance for ensuring the safety of equipment and the stability of a power system.
Owner:XINANJIANG HYDROELECTRIC GENERATION FACTORY OF STATE GRID XINYUAN HYDROPOWER +2

Linkage for automatic film wrapping machine

The application is a linkage device of automatic film packaging machine, which comprises a mounting base, a weighing mechanism, a lifting mechanism, a lifting and lowering mechanism and a feeding mechanism; the weighing mechanism comprises a weighing platform; the lifting mechanism comprises a lifting driver, a setting frame and a lifting bracket capable of being driven by the lifting driver to lift and lower relative to the setting frame and lift the material from the weighing platform; the lifting and lowering mechanism comprises a lifting and lowering driver and a lifting and lowering seat; the feeding mechanism comprises a feeding driver, a transverse shaft and a feeding frame capable of receiving the material from the lifting bracket and conveying to the lifting and lowering seat along the transverse shaft; the weighing mechanism, the setting frame of the lifting mechanism, the lifting and lowering mechanism and the transverse shaft of the feeding mechanism are fixed on the mounting base at intervals, and the weighing platform, the lifting bracket and the bearing of the feeding frame are matched with each other; each mechanism can be installed independently without affecting each other, and the driver of each mechanism does not need to bear the load of other mechanisms, thereby reducing the load of single driver.
Owner:KW TW MASCH GMBH

Lifting structure for horizontal machining center

The utility model relates to the technical field of lifting structure, and specifically discloses a lifting structure for horizontal machining center, which comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with a sliding rail, one end of the top of the sliding rail is fixedly connected with a first motor, the driving shaft of the first motor is fixedly connected with a forward screw rod, the rotation of the forward screw rod drives the rotation of a reverse screw rod, the rotation of the forward screw rod and the reverse screw rod drives the synchronous movement of multiple sets of supporting devices, thereby increasing the coverage range between the multiple sets of supporting devices, facilitating the support of parts of different lengths, supporting the parts by the supporting devices, facilitating the rotary support of the parts while machining on the horizontal lathe, thereby facilitating the rotary support of the parts, and achieving the purpose of conveniently supporting and rotating the parts.
Owner:DALIAN XINHONGTAI PRECISION MASCH CO LTD

Winnowing separation device for rice processing

The utility model relates to the technical field of rice processing, and discloses a winnowing separation device for rice processing, which solves the problem that the screening effect of rice is poorer due to a simple winnowing mechanism at present, and comprises a winnowing box, and the top of the winnowing box is fixedly connected with a feed hopper; an inclined plate located below the feeding hopper is fixedly connected into the winnowing box, an inner plate located below the inclined plate is fixedly installed in the winnowing box, an impurity discharging opening and a discharging opening are symmetrically formed between the inner plate and the winnowing box, a separating mechanism is arranged on the winnowing box, and a cleaning mechanism is arranged on the separating mechanism. The separating mechanism comprises a movable frame movably mounted in the discharging opening, and a mounting frame is arranged in the movable frame; according to the rice screening device, through cooperation of the conveying belt, the driven shaft, the eccentric block, the sleeve plate, the U-shaped round rod, the movable frame, the lifting plate, the L-shaped round rod and the first spring, the screen can vibrate conveniently and is prevented from being blocked, and therefore the rice screening effect can be improved conveniently.
Owner:DANGYANG DAFA RICE IND CO LTD

Railway rail corrugation suppression device and installation method

The application discloses a rail corrugation suppression device and a mounting method, and belongs to the technical field of rail transit. The rail corrugation suppression device comprises a suppression mechanism, the suppression mechanism is symmetrically arranged on both sides of the rail waist of a rail, the bottom of the rail is provided with a fixing mechanism for fixing the suppression mechanism on the rail, an energy consumption box is arranged on the fixing mechanism, and the energy consumption box is located directly below the rail. The suppression mechanism comprises a plurality of box bodies arranged in a linear array, a plurality of first suppression layers and second suppression layers are arranged in the box bodies, and the first suppression layers and the second suppression layers are arranged at intervals. The rail corrugation suppression device and the mounting method can solve the problem that the existing rail corrugation suppression device has poor damping effect on rail vibration and noise.
Owner:NAT ENG LAB FOR HIGH SPEED RAILWAY CONSTR +2

Water vapor-organic working medium combined cycle power generation system

The invention relates to a water vapor-organic working medium combined cycle power generation system which comprises a water vapor Rankine cycle and an organic working medium Rankine cycle, saturated steam generated by a boiler forms superheated steam through a superheater and drags a steam turbine generator to generate power, steam exhausted by a steam turbine is condensed in a condenser, and formed condensed water returns to the boiler through a water feeding pump and an economizer. A liquid organic working medium passes through an organic working medium booster pump, an organic working medium heater and a condenser to form organic working medium superheated steam, an organic working medium gas turbine generator set is dragged to generate electricity, and exhaust gas of an organic working medium gas turbine is cooled through the condenser to form the liquid organic working medium. And high-temperature flue gas generated in the fuel combustion or industrial production process is discharged after being cooled by the boiler body, the superheater, the economizer and the organic working medium heater, or is discharged from a chimney through purification equipment and an induced draft fan.
Owner:NANJING RECLAIMER ENVIRONMENTAL TEKNIK