Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

40results about How to "Adjustable quality" patented technology

Hot metal high-temperature heat pipe

The invention discloses a hot metal high-temperature heat pipe. The hot metal high-temperature heat pipe comprises a liquid filling pipe, a top end cover, a heat pipe shell, a bottom end cover, a gap,a condensation section liquid absorbing core, a heat insulation section liquid absorbing core, an evaporation section liquid absorbing core, a steam cavity, a liquid absorbing core plug and a gas storage bag. The closed liquid filling pipe, the top end cover, the heat pipe shell and the bottom end cover jointly form a closed space of the heat pipe. The liquid filling pipe is connected with a hotmetal filling loop through a connecting element, and filling of a working medium is achieved. The backflow resistance of the liquid working medium can be reduced through the gap. The evaporation section liquid absorbing core, the heat insulation section liquid absorbing core and the condensation section liquid absorbing core jointly provide power for backflow of the liquid working medium. The wavestructure of the heat insulation section liquid absorbing core can reduce liquid drop entrainment, and the condensation section liquid absorbing core adopts a fin structure to accelerate steam condensation. The liquid absorbing core plug can store the working medium and adjust the mass of the working medium participating in circulation. The gas storage bag can limit non-condensable gas, and the influence of the non-condensable gas on heat transfer is reduced.
Owner:XI AN JIAOTONG UNIV

Eddy-current self-frequency-conversion tuned mass damper

The invention relates to an eddy-current self-frequency-conversion tuned mass damper, which is arranged on a main structure of a building, and comprises a spring, a fixed mass block, a variable mass block, a permanent magnet bar, a servo control component and a for-regulation mass block, wherein the for-regulation mass block is fixedly arranged on the main structure; the upper end of the permanent magnet bar passes through permanent magnet bar conduits in the centers of the fixed mass block and the variable mass block in sequence respectively and is fixed through a bolt; the lower end of the permanent magnet bar stretches into an electromagnetic groove arranged in the center of the for-regulation mass block, and moreover, is arranged with a conductor plate, which is arranged in the electromagnetic groove, in a relative induction manner; the spring is arranged outside the permanent magnet bar in a sleeving manner; moreover, the upper end of the spring is connected with the fixed mass block; the lower end of the spring is connected with the for-regulation mass block; the servo control component is connected with the variable mass block and the for-regulation mass block respectively. Compared with the prior art, the eddy-current self-frequency-conversion tuned mass damper has advantages that the mass can be regulated, the energy consumption is low, the structure is simplified, an external energy source is not needed, the friction is avoided, the damping effect is good, and the like.
Owner:TONGJI UNIV

Washing machine balance weight and washing machine, and weight balancing method of washing machine

The invention relates to a washing machine balance weight and a washing machine, and a weight balancing method of the washing machine, and relates to the technical field of washing machines. According to the technical scheme, the washing machine balance weight comprises at least one weight balancing cavity and one water pressurizing structure, wherein the cavity wall of the weight balancing cavity is provided with a water inlet which is used for connecting a water inlet pipeline and a water outlet which is used for connecting a water outlet pipeline. Each weight balancing cavity is internally provided with one water pressurizing structure so that water entering the weight balancing cavity can be located in an air-free sealed cavity. The washing machine balance weight is used for being fixed on a water containing drum of the washing machine. The washing machine comprises the washing machine balance weight. The weight balancing method of the washing machine comprises the step of adopting the washing machine balance weight to conduct mass-adjustable weigh balancing. The washing machine balance weight and the washing machine, and the weight balancing method of the washing machine are mainly used for lowing vibration and noises of the washing machine in work, and for reducing the production cost and transportation cost of the washing machine.
Owner:GREE ELECTRIC APPLIANCES INC

Magnetic liquid damping shock absorber containing spherical crown surface non-magnetic conductive inertia block

The invention discloses a magnetic liquid damping shock absorber containing a spherical crown surface non-magnetic conductive inertia block, and is suitable for shock absorption of a longer object in a spacecraft. One ends of cylindrical permanent magnets selected by the device are inlaid in end covers, and the rest of exposed parts are coated by magnetic liquid; and the cylindrical permanent magnets on the two end covers are symmetrically distributed about the central section of a non-magnetic conductive shell. The adopted non-magnetic conductive inertia block is positioned between the symmetric cylindrical permanent magnets coated by the magnetic liquid, and is cylindrical; the two bottom surfaces of the non-magnetic conductive inertia block respectively contain three concave spherical crowns; and all corresponding bottom surfaces of the three spherical crowns on the bottom surfaces are tangent. The non-magnetic conductive inertia block generates a relative motion with the cylindrical permanent magnets under the effect of inertia force; and the magnetic liquid is extruded by using gap layers orderly changed between the bottom surfaces of the cylindrical permanent magnets and the concave spherical crown surfaces for consuming energy. The device is sensitive to the inertia force, and can effectively perform the shock absorption for planar shock with the characteristics of low frequency and low accelerated speed.
Owner:BEIJING JIAOTONG UNIV

A magnetic liquid damping shock absorber with a spherical crown surface non-magnetic conduction inertia block

The invention discloses a magnetic liquid damping shock absorber containing a spherical crown surface non-magnetic conductive inertia block, and is suitable for shock absorption of a longer object in a spacecraft. One ends of cylindrical permanent magnets selected by the device are inlaid in end covers, and the rest of exposed parts are coated by magnetic liquid; and the cylindrical permanent magnets on the two end covers are symmetrically distributed about the central section of a non-magnetic conductive shell. The adopted non-magnetic conductive inertia block is positioned between the symmetric cylindrical permanent magnets coated by the magnetic liquid, and is cylindrical; the two bottom surfaces of the non-magnetic conductive inertia block respectively contain three concave spherical crowns; and all corresponding bottom surfaces of the three spherical crowns on the bottom surfaces are tangent. The non-magnetic conductive inertia block generates a relative motion with the cylindrical permanent magnets under the effect of inertia force; and the magnetic liquid is extruded by using gap layers orderly changed between the bottom surfaces of the cylindrical permanent magnets and the concave spherical crown surfaces for consuming energy. The device is sensitive to the inertia force, and can effectively perform the shock absorption for planar shock with the characteristics of low frequency and low accelerated speed.
Owner:BEIJING JIAOTONG UNIV

Dynamic vibration reduction experimental device and experimental method

ActiveCN113611195AAdjustable vibration stiffnessDegrees of freedom optionalSustainable transportationEducational modelsElectric machineClassical mechanics
The invention relates to the technical field of mechanics experiments and particularly relates to a dynamic vibration reduction experiment device and method. The device comprises a fixed pedestal, a vibration main system, a vibration subsystem, and a vibration test system, wherein the vibration main system comprises an elastic beam and a rotating motor mass block; two ends of the elastic beam are hinged to the first supporting plate and the second supporting plate respectively; the rotating motor mass block is arranged on the elastic beam; the vibration subsystem comprises a spring, a porous aluminum sheet and an electromagnetic pole; an upper end of the spring is fixedly connected to the rotating motor mass block, a lower end of the spring is fixedly connected to a porous aluminum thin plate, and the electromagnetic pole is arranged on a support; and the vibration testing system is connected with the rotating motor mass block and the porous aluminum thin plate. The method comprises the following steps of measuring different mass ratios and different rigidity ratios of the vibration main system and the vibration subsystem and dynamic vibration reduction effects of the vibration subsystem under different damping conditions; and measuring the influence of different arrangement positions of the vibration subsystems on the dynamic vibration reduction of the vibration main system.
Owner:HEFEI UNIV OF TECH

Weight box with adjustable mass and maintenance of position of mass center

The invention relates to a weight box with adjustable mass and maintenance of the position of a mass center. The weight box comprises a box body, the upper surface of the box body is open so that different balancing weights are conveniently replaced, balancing weight components are arranged in the box body, and comprise narrow supporting plates, eccentric balancing weights, hollow balancing weightgroups and/or solid balancing weights; the box body is formed by connecting a left side plate, a right side plate, a bottom plate and a rear baffle through screws, the front surface of the box body is connected with a collision device, the rear baffle of the box body is provided with a threaded rod for compressing the balancing weight components in the box body, and the upper portions of the leftside plate and the right side plate of the box body are respectively provided with hanging plates. The box body structure is used as the counterweight, and the counterweight mass is adjusted by adopting a mode of replacing the hollow counterweight and the solid counterweight. Compared to a traditional mode, the weight box with the adjustable mass and maintenance of the position of the mass centerhas the following advantages in that: 1. the mass is adjustable, and can ensure the adjusting precision, 2, when the mass is adjusted, the position of the mass center is kept unchanged in the up-downdirection and the left-right direction, 3, the structure is firm and fast, and the rigidity can be ensured, 4, the counterweight adjustment is convenient and fast to operate, and 5, the weight box has expansibility.
Owner:XIANGYANG DAAN AUTOMOBILE TEST CENT

Flexible phase change composite material with cross-linked network structure and preparation method thereof

The invention discloses a flexible phase change composite material with a cross-linked network structure and a preparation method thereof, which belong to the field of composite materials. Theflexible phase change composite material with a cross-linked network structure comprises a flexible polymer matrix, a carbon nanotube (CNT) crosslinked with the flexible matrix, and a filled solid-liquid phase change material. A three-dimensional cross-linked network based on the flexible polymer/carbon nanotubes is constructed by adding a cross-linking agent for chemical cross-linking reaction, and the chemical cross-linking effect can reduce the interface hindering effect of the CNT and solve the problem of non-uniform dispersion of the CNT. The packaging efficiency of the solid-liquid phase change material is favorably improved, and the mechanical property and the heat storage property of the phase change composite material are remarkably enhanced. The material disclosed by the invention has stable phase change performance and has the functions of temperature regulation and heat energy storage. The material is easy to cut and process, shows good flexibility at room temperature, and has a good application prospect in the field of temperature control of flexible electronic devices.
Owner:UNIV OF SCI & TECH BEIJING +1

Automatic all-in-one machine for tin bar

The invention discloses an automatic all-in-one machine for a tin bar. The automatic all-in-one machine comprises a mounting bottom box which is internally provided with a control mechanism, and the mounting bottom box is provided with a transmission mechanism, a code printing mechanism and a discharging mechanism which cooperate with each other; the control mechanism is in signal connection withthe transmission mechanism, the code printing mechanism and the discharging mechanism; the transmission mechanism comprises a first cylinder, guide wheel groups, a mounting plate and a transmission pneumatic clamping device, and the mounting plate is fixed to the mounting bottom box; the guide wheel groups are installed on the front side of the mounting plate, and a transmission channel horizontally arranged is formed between the guide wheel groups; and the first cylinder is installed on the rear side of the mounting plate, and the power of the first cylinder is output to the transmission pneumatic clamping device matched with the transmission channel. By adopting the above technical scheme, the labor intensity of workers is very low, and the manual operation is less; the safety performance is excellent, and the labor cost is saved; the product uniformity is high, and the quality is guaranteed steadily.
Owner:杭州友邦焊锡材料有限公司

a dynamic shock absorber

The invention discloses a dynamic absorber which comprises a first vibration absorption assembly and a second vibration absorption assembly. The first vibration absorption assembly comprises an uppermass block and an elastic support. The upper mass block is detachably mounted on the elastic support. The second vibration absorption assembly comprises a rubber block and a lower mass block. The lower mass block is located in the elastic support. The rubber block is arranged between the elastic support and the lower mass block. The rubber block and the lower mass block are connected detachably. The dynamic absorber has the advantages that the first vibration absorption assembly and the second vibration absorption assembly are combined to form the two-stage series-connection dynamic absorber,and the advantages of being large in vibration reduction bandwidth, good in vibration reduction effect and good in robust performance are achieved; the upper mass block, the rubber block and the lowermass block are detachably connected, and it is guaranteed that the mass of the dynamic absorber is adjustable; the detachable connection manner of the elastic support guarantees that the rigidity ofthe dynamic absorber is adjustable, and therefore the inherent frequency is adjustable; and the dynamic absorber can be changed into a dynamic absorber adjustable in single-stage frequency according to needs, and use is more flexible.
Owner:NINGBO TUOPU GROUP CO LTD

Sleeve type edible fungus cultivation device

The invention belongs to the technical field of fungus cultivation, and particularly relates to a sleeve type edible fungus cultivation device. The device comprises a base, a plurality of supporting rods are arranged at the upper end of the base, and a culture device is arranged at the upper ends of the supporting rods; a reaction tank and a recovery tank are arranged at the upper end of the base,and the reaction tank and the recovery tank are arranged at the positions, on the left side and the right side of the culture device, of the base respectively; the upper end of the reaction tank is provided with a first liquid guide pipe, and the end, away from the reaction tank, of the first liquid guide pipe is connected with one end of the culture device; a second liquid guide pipe is arrangedat the upper end of the recycling tank, and the end, away from the recovery tank, of the second liquid guide pipe is connected with the other end of the culture device; a plurality of mobile devicesare arranged at the lower end of the base. The sleeve type edible fungus cultivation device has the advantages that the quality of edible fungi can be effectively controlled, the production efficiencycan be improved, a culture medium is convenient to replace, the service life of the culture device is prolonged, and the flexibility of the culture device is improved through the mobile devices.
Owner:HEFEI FUQUAN MODERN AGRI SCI & TECH

Fine coal low-temperature destructive distillation kiln

The invention relates to a fine coal low-temperature destructive distillation kiln, which is characterized in that a fire wall is arranged in a furnace wall of a kiln body, a fire path is arranged in the fire wall, the upper part of the fire path is communicated with a smoke evacuation pipeline, the bottom of the fire path is communicated to a gas combustor, the gas combustor and a gas pipeline are communicated to an air pipeline, at least one charing chamber is arranged at the inner side of the fire wall, the upper part of the charing chamber is communicated to a feed opening, the upper part of the feed opening is connected to a frequency conversion spiral feeder, the upper part of the frequency conversion spiral feeder is connected to a bunker at the top of the kiln, an upper row precipitate gas main pipe which is connected to the charing chamber is laterally arranged at one side of the feed opening, the upper row precipitate gas main pipe is communicated to a gas recycling pipe, a quenching water groove is arranged at the bottom of the charing chamber, a frequency conversion spiral discharging machine is arranged at the lower part of the quenching water groove, a belt conveyor is arranged at one side of the frequency conversion spiral discharging machine, the charing chamber is composed of three small charing chambers, so that the fine coal can be uniformly distributed, the destructive distillation kiln is benefit for collecting gas, and has the advantages of uniform heating, adjustable temperature and energy saving.
Owner:陈振平

Selenium-rich nutrient solution as well as preparation method and application thereof

The invention provides a selenium-rich nutrient solution as well as a preparation method and application thereof. The selenium-rich nutrient solution comprises a selenium-rich nutrient solution A and a selenium-rich nutrient solution B, and the mass ratio of the selenium-rich nutrient solution A to the selenium-rich nutrient solution B is (1-2):(2-3). The selenium-rich nutrient solution A comprises the following raw materials in parts by weight: 8-10 parts of humic acid, 6-8 parts of L-proline, 2-4 parts of magnesium sulfate, 2-4 parts of copper sulfate, 3-6 parts of selenium ore powder, 10-15 parts of straw mushroom powder, 20-30 parts of bran fermentation liquor and 25-35 parts of water; and the selenium-rich nutrient solution B comprises the following raw materials in parts by weight: 7 to 11 parts of cassava starch, 9 to 15 parts of bamboo powder, 4 to 6 parts of sodium selenite, 8 to 15 parts of liquorice root decoction dregs, 12 to 16 parts of radix astragali decoction dregs, 4 to 8 parts of fructus crataegi decoction dregs, 12 to 15 parts of lotus leaf extract and 12 to 18 parts of anabaena culture solution. The prepared selenium-rich nutrient solution is applied to crop cultivation, green and environment-friendly selenium-rich crops with high organic selenium content and less inorganic selenium residues can be harvested, the quality and nutritional value of the crops can be improved, the preparation method is simple, the product is easy to use, and the selenium-rich nutrient solution is quite suitable for large-scale popularization and application.
Owner:高富嘻(海南)生物科技集团有限公司

A liquid metal high temperature heat pipe

The invention discloses a hot metal high-temperature heat pipe. The hot metal high-temperature heat pipe comprises a liquid filling pipe, a top end cover, a heat pipe shell, a bottom end cover, a gap,a condensation section liquid absorbing core, a heat insulation section liquid absorbing core, an evaporation section liquid absorbing core, a steam cavity, a liquid absorbing core plug and a gas storage bag. The closed liquid filling pipe, the top end cover, the heat pipe shell and the bottom end cover jointly form a closed space of the heat pipe. The liquid filling pipe is connected with a hotmetal filling loop through a connecting element, and filling of a working medium is achieved. The backflow resistance of the liquid working medium can be reduced through the gap. The evaporation section liquid absorbing core, the heat insulation section liquid absorbing core and the condensation section liquid absorbing core jointly provide power for backflow of the liquid working medium. The wavestructure of the heat insulation section liquid absorbing core can reduce liquid drop entrainment, and the condensation section liquid absorbing core adopts a fin structure to accelerate steam condensation. The liquid absorbing core plug can store the working medium and adjust the mass of the working medium participating in circulation. The gas storage bag can limit non-condensable gas, and the influence of the non-condensable gas on heat transfer is reduced.
Owner:XI AN JIAOTONG UNIV

Experimental verification method for identifying modal parameter of variable mass structure

The invention relates to an experimental verification method for identifying a modal parameter of a variable mass structure, and belongs to the technical field of modal parameter identification of structural dynamics. The experimental verification method comprises the steps that a time varying structure with a mass size and mass distribution capable of be controlled accurately with a time varying rule is designed and set up; the modal parameter of the time varying structure is identified under short time invariant assumption; a varying rule of the modal parameter with the time of the time varying structure is obtained and serves as a basis reference; a time varying structure dynamic experiment is performed; a structural dynamic response signal of the time varying structure under specified excitation is measured; measured data is identified by a to-be-verified method; an identification result is compared with the basis reference for verifying the feasibility and the accuracy of the to-be-verified method; the identification result of the to-be-verified method and the basis reference are compared under different experiment conditions; and the robustness of the to-be-verified method is verified. The experimental verification method is simple and reliable.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Novel two-stage vibration isolation two-dimensional adjustable suspension system for electric automobile

The invention relates to a novel electric automobile two-stage vibration isolation two-dimensional adjustable suspension system which comprises a suspension support, a suspension and a balancing weight, a bolt A is installed on the top of the suspension support, the suspension support is connected with a motor through the bolt A, a bolt C is installed at the bottom of the suspension support, and the suspension is installed on the suspension support through the bolt C; the suspension is composed of a suspension shell, a suspension inner sleeve, a suspension inner rubber bushing, a suspension middle sleeve, a suspension outer rubber bushing and a suspension outer rubber bushing sleeve, and the suspension inner sleeve, the suspension inner rubber bushing, the suspension middle sleeve and the suspension outer rubber bushing are arranged in the suspension shell in sequence from inside to outside. The suspension outer rubber bushing is arranged in the suspension outer rubber bushing sleeve; a balancing weight is fixed to the suspension middle sleeve through a bolt, and the bottom of the suspension shell is connected with an auxiliary frame or a vehicle body through an E bolt. The high-frequency dynamic stiffness of the power assembly suspension system can be effectively reduced, the high-frequency vibration isolation performance is improved, and high-frequency vibration and high-frequency noise of an electric automobile are improved.
Owner:麦格纳卫蓝新能源汽车技术(镇江)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products