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150results about How to "Reasonable match" patented technology

Turbine blade vibration test method and device

The invention discloses a steam turbine blade vibration test method and device. The method steps are that firstly, a blade force vibration status is analyzed and a blade excitation force mathematical model is built. Secondly, an excitation force is imposed on the blade by a vibration source. The frequency of the excitation force is regulated until resonance is generated between the blade and the vibration source. Vibration characteristics parameters values of the blade under the excitation force are measured. Thirdly, blade damping characteristics parameters, including modal damping ratio, damper contact stiffness and blade dynamic stress, are worked out according to the vibration characteristics parameters values. The device includes a test bed, a blade clamping mechanism arranged on the test bed, an excitation generator, a vibration parameter detector and a data processing system. The excitation vibration generator is fixed on the test bed. The excitation vibration head of the excitation vibration generator is fixed with the blade. Corresponding to the blade, the vibration parameter detector transforms the vibration signals of the blade into electric signals, which are input into the data processing system. The invention proves the vibration mechanism of the damping blade. A calculation model of the damping blade is constructed through the test parameters. Experience design is terminated. The blade design is standardized to step into a scientific design orbit.
Owner:DONGFANG TURBINE CO LTD +1

Method and device for matching users in game application

ActiveCN104436656AExact matchImprove matching accuracy and matching efficiencyVideo gamesWeb resourceMultimedia
The invention relates to a method and device for matching users in a game application. The method comprises the following steps that the historical primary attribute values of the users are acquired according to the historical game data of the users; the evaluating coefficients of current game running environment parameters of the users are acquired; processing is carried out according to the historical primary attribute values of the users and the evaluating coefficients of the current game running environment parameters, and the current primary attribute values of the users are obtained; the users with the current priamry attribute values meeting set conditions are matched as a group. According to the method and device for matching the users, the current game running environment parameters of the users are estimated, processing is carried out according to the evaluating coefficients of the environment parameters and the historical primary attribute values of the users, the current primary attribute values of the users are obtained, the users meeting the set conditions are matched, obtained matching is more accurate and reasonable, matching accuracy and matching efficiency are improved, the situation that a large number of users not meeting the set conditions are matched is avoided, and network resources are saved.
Owner:SHENZHEN TENCENT COMP SYST CO LTD

Dual chain ring driving knotting machine

The present invention belongs to the technical filed of straw or forage harvesting and bundling, especially a dual chain ring driving knotting machine which includes a small chain ring, a knotting machine support, a large chain ring, a knife arm, a winding, buckling, clamping and occluding mechanism R, a rope clamping machine J and a rope clamping machine drive mechanism Q. The small chain ring and the large chain ring are coaxially mounted at both ends of the knotting machine support; the rope clamping machine drive mechanism Q and the winding, buckling, clamping and occluding mechanism R are mounted at different sides of the knotting machine support; in the knotting machine support, a knotting mouth shaft hole shaft axis d presents non-orthogonal concurrent axis arrangement with a knotting machine main shaft axle hole shaft axis a, a worm shaft axle hole shaft axis c presents perpendicular concurrent axis arrangement with the knotting machine main shaft axle hole shaft axis a, a knife arm shaft axle hole shaft axis b presents space orthogonal arrangement with the knotting mouth shaft hole shaft axis d, the knife arm shaft axle hole shaft axis b, the rope clamping plate shaft hole shaft axis e and the knotting machine main shaft axle hole shaft axis a are arranged space perpendicularly to each other; the dual chain ring driving knotting machine has reasonable structure, is easy for processing and assembling, and has low manufacturing cost, and reliable knotting characteristics.
Owner:泰州市力鼎机械设备有限公司

Rotor armed unmanned aerial vehicle

InactiveCN107963215ACompact structureCompact and reliable structural layoutMilitary adjustmentAircraftsRemote controlUncrewed vehicle
The invention discloses a rotor armed unmanned aerial vehicle which comprises an unmanned gyroplane, an observing and aiming unit, a mounting unit, a weapon unit and a control unit. An unmanned gyroplane body is a bearing platform of the rotor armed unmanned aerial vehicle, and the observing and aiming unit observes, measures and aims at a target. The mounting unit comprises a direction adjustingmechanism, a buffering mechanism, a mounting block and a high-low angle adjusting mechanism. The direction adjusting mechanism comprises a bearing ring and a driving motor. The buffering mechanism isconnected with the rotating bearing ring, and a guide rod penetrates through a guide hole in the upper portion of the mounting block. The two ends of the guide rod are fixed to a supporting seat, andsprings are arranged at the two ends of the guide rod in a sleeving mode to constrain the mounting block to achieve the buffering effect. The upper portion of the mounting block is connected with theguide rod of the buffering mechanism, and the lower portion of the mounting block is provided with the high-low angle adjusting mechanism. According to the rotor armed unmanned aerial vehicle, the mounting mode is simple and convenient, a control mechanism is compact and reliable, and the buffering mechanism is efficient and reliable; through the mounted observing and aiming unit, the all-weatherfighting ability is achieved; through the control unit, the target can be remotely monitored and accurately struck, and thus the safety of obverse shooter is effectively ensured.
Owner:牟正芳

High-speed railway microwave communication network

The invention discloses a high-speed railway microwave communication network, which is used for realizing signal relay between a movement carrier internal communication network and a carrier external communication network on high-speed railways. The network comprises a plurality of rail base relay devices and at least one vehicle-mounted relay device, wherein the plurality of rail base relay devices are laid along the high-speed railway rails, are arranged within a rail construction limit and are used for realizing signal relay between the external communication network and the vehicle-mounted relay device; each rail base relay device has a coverage space; the at least one vehicle-mounted relay device is fixed on the carrier and realizes signal relay between a rail base relay device corresponding to the current coverage space and the carrier internal communication network; and the frequency range of the signal is limited in one or more sub-frequency ranges from 4 to 42 GHz. Because microwave frequency ranges are adopted for signal relay of internal and external networks, the microwave communication network has the advantages of stable channel and high communication capacity; and because the system is enclosed in the construction limit of the high-speed railway, the network has the advantages of high reliability, high universality, low cost and the like.
Owner:COMBA TELECOM SYST CHINA LTD

Accurate matching method of automobile fusible cutout and connecting wire

The invention discloses an accurate matching method of an automobile fusible cutout and a connecting wire. The accurate matching method of the automobile fusible cutout and the connecting wire comprises the following steps: firstly, establishing a mathematical model of connecting wire rated operational current according to a heating and heat transfer mechanism of the automobile fusible cutout and the connecting wire in the process of working; secondly, establishing a foundation database of a low voltage wire and the fusible cutout for a national standard automobile; lastly, amending a theoretical matching result of the fusible cutout and the connecting wire in the mathematical model of the connecting wire rated operational current according to the foundation database of the low voltage wire and the fusible cutout for the national standard automobile, and acquiring an accurate matching result of the fusible cutout and the connecting wire designed by an automobile electric system. The accurate matching method of the automobile fusible cutout and the connecting wire ensures that parameter matching accuracy between the automobile fusible cutout and the connecting wire is improved greatly, matching between the automobile fusible cutout and the connecting wire is rational, and development efficiency of the automobile electric system is improved. The accurate matching method of the automobile fusible cutout and the connecting wire has good economic benefit and social benefit.
Owner:DONGFENG AUTOMOBILE COMPANY

Household appliance type rubbish dismantling, sorting and recycling process and equipment

InactiveCN103537478ALeap in efficiencyLeap securitySolid waste disposalElectronic waste recyclingCycloneCyclonic separation
The invention discloses a household appliance type rubbish dismantling, sorting and recycling process and equipment. The process comprises the following steps of firstly pre-dismantling special components and harmful substances of household appliances such as a television, a computer, a washing machine and a refrigerator; then crushing by a stirrer, treating at high temperature, carrying out negative pressure-cyclone separation, magnetic force separation, eddy current separation, separation of vibration drive belts with holes and carrying out other processes sequentially, and separating and recycling other materials of light substances after the shells of household appliances are crushed, magnetic metal, nonferrous metal, glass, plastics and the like. According to the household appliance type rubbish dismantling, sorting and recycling process and equipment, the automation degree is high, no dust and waste gas exist, the working environment is friendly; meanwhile, the equipment has high separation and classifying efficiency, is simple and flexible in configuration, and is convenient to mange, repair and maintain. The process and the equipment have important significance on energy conservation, emission reduction, employment of workers, waste material utilization and environmental protection.
Owner:UNIV OF JINAN

System based on intelligent manufacturing management service platform and supply and demand information processing method of system

The invention discloses a system based on an intelligent manufacturing management service platform and a supply and demand information processing method of the system. The supply and demand information processing method comprises the following steps: acquiring, by the intelligent manufacturing management service platform, user demand information; intelligently processing the acquired user demand information, selecting a plurality of suppliers matched with the user demand information according to the user demand information, and pushing the user demand information to the suppliers; acquiring manufacturing designs made by the suppliers according to the user demand information, and providing customization solution information for intelligent manufacturing according to the designs; feeding back the customization solution information provided by the multiple suppliers to a user. The method helps a customer to contact a proper supplier and select another solution by acquiring customization information of the user, searching and matching a supplier group matched with a customization demand of the user, ranking the supplier group, pushing the user demand, and supervising the suppliers to provide preliminary design solutions and solution quotations, so that the best interest of the user is guaranteed, and the transaction efficiency is improved.
Owner:广州凯邦信息技术有限公司

Water cooled steam turbine unit dead steam waste heat recovery heat supply system

Provided is a water cooled steam turbine unit dead steam waste heat recovery heat supply system. The system comprises a steam turbine and a corresponding condenser, by using a dead steam extraction system, a vent hole is formed in the condenser or a steam turbine exhaust pipe for bringing the dead steam out, through a pipeline, the dead steam is transported to a steam generator dead steam recoveryand utilization heat supply system; the steam generator dead steam recovery and utilization heat supply system comprises a steam generator and a steam generator condenser; an absorption or compression type heat pump heat supply system comprises an absorption or compression type heat pump unit, a power steam system of the heat pump unit is connected to a steam turbine medium pressure cylinder to exhaust steam; the steam generator dead steam recovery and utilization heat supply system and the absorption or compression type heat pump heat supply system are connected with each other, and simultaneously connected to a heat supply pipe network. According to the system, the efficient recovery and utilization of dead steam waste heat of the water cooled steam turbine in a thermal power plant is achieved, the utilization amount of dead steam is improved, the heat supply capacity is improved, the loss of a cold end is reduced to the maximum, and the maximum energy saving efficiency is realized.
Owner:UNI RISING BEIJING TECH CO LTD

Pressure lubricating integral barrel-shaped tappet device

The invention discloses a tappet device of a fuel injection pump, and particularly relates to a pressure lubricating integral barrel-shaped tappet device of the fuel injection pump. The technical scheme is as follows: the tappet device mainly comprises a supporting sleeve, a guiding key, a tappet body, a roller pin and a roller wheel, wherein the tappet body, the roller pin and the roller wheel are assembled integrally and installed in the supporting sleeve, and realize guiding and limiting in the guiding groove on the wall surface of the tappet body by the guiding key. On one hand, the pressure lubricating oil from an engine is directly injected to the roller wheel and a cam, on the other hand, the pressure lubricating oil reciprocates in the tappet component by building a pressure lubricating oil film between the supporting sleeve and the tappet body, the lubricating oil at the periphery of the tappet component enters the gap between the roller pin and the roller wheel for lubricating, and the lubricating oil on the upper part of the tappet is injected to the roller wheel through two through holes of the tappet body, thus the lubricating and cooling effects are good. The tappet device disclosed by the invention can be widely applied to the fuel injection pump so as to improve the pressure lubricating function and carrying capacity of the fuel injection pump, and has broad application prospects.
Owner:CHINA NORTH IND GRP NO 70 RES INST

Railway coach suspension spring matching method

The invention relates to suspended mechanical spring in railway carriages for passenger, concrete relates to option processes for suspended mechanical spring in railway carriages for passenger. The invention solves the problem of difficulty in Making sure that carriages for passenger primary pass the test because of lacking of option processes for standard axle box mechanical spring and bolster mechanical spring when carriages for passenger in maintenance. Weighting the body of the carriages for passenger, Gauging partition of load of the four supporting place in the body carriages for passenger, and Ascertaining the heavy end the light end and the heavy side, the light side of the heavy end and the light end according to the partition of load of the four supporting place; gauging the free height and hardness of the vehicle-mounted axle box mechanical spring and bolster mechanical spring, Ordering the axle box mechanical spring and bolster mechanical spring in order of large to small of the product of the free height and the hardness of the mechanical springs; and then optioning in the order of heavy end to light end, heavy side to light side. The invention can reduce the workload of corrective maintenance, improve the success rate of maintenance, essentially make >primary pass the test, and improve maintenance efficiency and quality.
Owner:TAIYUAN RAILWAY RES INST OF SCI & TECH

Local oxygen-enriched flame warming lengthening type combustor

The invention discloses a local oxygen-enriched flame warming lengthening type combustor. The local oxygen-enriched flame warming lengthening type combustor comprises a combustor body, a swirler and oxygen-enriched air pipelines. A fuel gas pipeline and the three oxygen-enriched air pipelines are arranged on the combustor body, the swirler is arranged on one side inside the combustor body, a fuel gas nozzle of the fuel gas pipeline is arranged at the position of the swirler, a combustion supporting air inlet is formed below the combustion body, combustion supporting air is fully mixed with fuel gas at the position of the swirler and then ejected to form a main flame combustion area, and oxygen-enriched nozzles of the three oxygen-enriched air pipelines are located on the upper portion, the middle and the lower portion of the main flame combustion area respectively. The local oxygen-enriched flame warming lengthening type combustor has the advantages that on the basis of the physical principle, oxygen-enriched air is reasonably added in original flames which are not fully combusted for combustion supporting, molecules in the fuel gas and molecules in combustion supporting gas are reasonably matched, the temperature of the original flames rises by reasonably distributing and utilizing added oxygen molecules, fuel is fully combusted, and energy is saved by 25%-45%.
Owner:HUNAN LUXIANG ENERGY SAVING TECH CO LTD

Double-pre-film pneumatic nebulization low pollution combustor head structure

ActiveCN103343985BReduce pollutionConducive to pollution dischargeContinuous combustion chamberAviationLevel structure
The invention discloses a double-pre-film pneumatic nebulization low pollution combustor head structure. Combustion is organized in a combustor head in a center classification mode. The combustor head structure is divided into a main combustion level and a pre-combustion level. The pre-combustion level is of a double-level swirl cup structure, combustion is organized in a partially premixing mode, and the requirements for combustion stability and pollutant discharge of small working conditions are met. The main combustion level is of an axial swirler double-pre-film structure, combustion is conducted in a combustor in a premixing mode, and combustion pollutants can be effectively reduced through premixing combustion. The double-pre-film type main combustion level structure comprises two stages of independent oil collecting rings, two stages of axial swirlers and two stages of pre-film plate structures. Each stage of independent oil collecting ring is provided with a plurality of beveled fuel injection holes. Each stage of fuel is injected out through the fuel injection holes and then strikes the pre-film plates to be expanded into oil films. The structure is beneficial for fuel classification of the whole combustor under different working conditions, ensures reasonable oil-gas distribution, and further reduces the pollutant discharge level in the whole cycle of landing and taking off of the combustor of an aero-engine.
Owner:BEIHANG UNIV +1
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