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31results about How to "Small amount of expansion and contraction" patented technology
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Supporting system of long span stayed-cable bridge
InactiveCN101424071AReduce beam end displacementReduce bending momentCable-stayed bridgeBridge engineeringSupporting system
The invention discloses a support system for a long-span cable-stayed bridge, which relates to the technical field of bridge engineering. The support system consists of nine parts including main girders, bridge towers, stay cables, transitional piers, transverse wind resisting bearings, longitudinal viscous dampers with limiting function, longitudinal sliding bearings with limited transverse rigidity, transverse dampers, and telescopic devices. Compared with the prior support system for the long-span cable-stayed bridge, the support system of the invention has the characteristics that the longitudinal viscous dampers with limiting function are arranged between the main girders and the bridge towers; and the longitudinal sliding bearings with limited transverse rigidity and the transverse dampers are arranged between the main girders and the transitional piers. The support system provides effective rigidity and damping for the long-span cable-stayed bridge to ensure that the static force and the dynamic force responses of the bridge are controlled in an acceptable scope; the structural stress is definite; and the applicability is strong.
Owner:CCCC HIGHWAY CONSULTANTS
Wave compensating device for ascending operation of high-rise pile cap
ActiveCN106828789AMotion compensationCompensate for coupled motionCargo handling apparatusVessel partsHydraulic cylinderElectricity
The invention discloses a wave compensating device for ascending operation of a high-rise pile cap, and belongs to the technical field of basic maintenance work of offshore wind piles. The wave compensating device comprises a horizontal ladder part, a hydraulic drive compensation mechanism and a base mechanism, wherein the hydraulic drive compensation mechanism is arranged on the base mechanism; the horizontal ladder part is arranged on the hydraulic drive compensation mechanism; the hydraulic drive compensation mechanism drives the horizontal ladder part to move; and the base mechanism is arranged on a bearing hull. The wave compensating device is driven by a hydraulic device to control a hydraulic cylinder to stretch and contract; and when a ship carries out three-degree-of-freedom motion of rolling, pitching and heaving, effective compensation is achieved, so that a worker more safely passes a horizontal ladder. Feedback control is adopted by the wave compensating device for ascending operation of the high-rise pile cap, so that the wave compensating device is strong in anti-jamming capability, good in adaptability, high in compensation accuracy and stable in compensation performance.
Owner:JIANGSU HANTONG SHIP HEAVY IND
Slipping type seamless telescopic device
InactiveCN104818669AReduce warpingAlleviation deficiencyBridge structural detailsElastomerArchitectural engineering
The invention discloses a slipping type seamless telescopic device. A telescopic seam is arranged between main beams, upper surfaces of the main beams are provided with comb plates, and the comb plate arranged at the upper part of the telescopic seam is a trans-seam comb plate, and a fixing comb plate is connected with the trans-seam comb plate; a top paving layer is arranged at the upper part of the trans-seam comb plate, and both sides of the top paving layer are respectively provided with elastomer prefabricating blocks; left and right sides of the elastomer prefabricating blocks are respectively arranged with bituminous concrete paving layers. The slipping type seamless telescopic device and a bridge face paving layer can be formed to be a continuous body, so as to guarantee stable and comfortable driving; the driving noise is small and waterproof performance is good, and the slipping type seamless telescopic device is convenient to clean and remove snow, and other maintaining works; the structural design is more reasonable, and construction is convenient; the comb plates are respectively arranged beneath the paving layer and above the main beam, and can be fixedly moved; and thereby, the problem of empty lower part of the tooth end of the comb plate is effectively solved, and the shortcoming that the traditional seamless telescopic device is easy to crack is overcame.
Owner:JSTI GRP CO LTD +1
Polyvinyl alcohol fiber oil pattern harness cord thread and its preparing method
The present invention relates to a kind of oiled polyvinyl harness flex for jacquard and its production process. The oiled polyvinyl harness flex is produced with light yellow polyvinyl yarn and white filtering polyvinyl yarn as material and through twisting, sizing and wax oil soaking. The produced oiled polyvinyl harness flex has yellow and white pattern, modulus 10-20 % higher than that of available one, small extension and less moisture influence.
Owner:倪轮官 +1
Double-layer automatically adjustable suspension suitable for hilly mountainous areas
PendingCN108944327AGuaranteed levelPrevent rolloverResilient suspensionsHydraulic cylinderVehicle frame
The invention relates to a double-layer automatically adjustable suspension suitable for hilly mountainous areas. Each of four corner parts of a lower hydraulic pressure independent adjustment suspension is provided with a lower suspension hydraulic function unit, and the middle parts of four beams of a lower suspension is provided with first horizontal sensors; each lower suspension hydraulic function unit is independently controlled, and the levelness of the lower suspension is adjusted in real time according to the monitoring data of each first horizontal sensor; an upper hydraulic synchronous interconnect suspension is fixedly arranged on the upper part of the low suspension, and the upper suspension hydraulic functional units are divided into two groups of upper suspension front framehydraulic functional units and upper suspension rear frame hydraulic functional units, and each group is provided with a synchronous motor; second horizontal sensors are arranged in the middle of thecross beams on both sides of the upper suspension, and a pair of hydraulic cylinders on each of the front and rear sides of the lower suspension are synchronously controlled. The four suspension independently and automatically adjust a driving posture of the vehicle in real time when the vehicle is traveling on the uneven road surface. At that same time, the level of the drive's sitting posture can be kept when the vehicle ascends or descend a slope.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI
Shockproof packaging box of optical splitter
ActiveCN103257419ASmall amount of expansion and contractionEasy to operateFibre mechanical structuresLight wavePlanar optical waveguide
The invention discloses a shockproof packaging box of an optical splitter. The shockproof packaging box of the optical splitter comprises a packaging box body. An optical fiber coil-in hole is formed in the right end surface of the packaging box body, and a row of optical fiber coil-out holes are formed in the right end surface of the packaging box body. An optical fiber protector is arranged in the center of the inner surface of the packaging box body. An installation base is arranged on the portion, close to the optical fiber coil-in hole, of the inner surface of the packaging box body. A steel pipe sleeve is installed on the installation base in a supporting mode, and a buffering shockproof layer is arranged between the interior of the steel pipe sleeve and the planar light wave circuit splitter and attached to the inner surface of the steel pipe sleeve closely. According to the shockproof packaging box of the optical splitter, through the improvement of the internal structure of the optical splitter, the optical splitter can conform to 'technical requirements for passive optical splitter of China telecom' when mechanical performance tests of the optical splitter are carried out, and the service life of the optical splitter is prolonged effectively.
Owner:ZHONGTIAN BROADBAND TECH +1
Box opening and conveying device
ActiveCN105501538APrecise and stable movement strokeRealize automatic controlPackagingRange of motionReciprocating motion
The invention discloses a box opening and conveying device, belongs to the field of packaging machinery, and solves the problems that the conventional manual box opening efficiency is low and the cost is high. According to the technical scheme, the box opening and conveying device mainly comprises a box opening assembly, a lifting assembly and a conveying assembly; the box opening assembly comprises a box opening driver and box opening operating parts; the box opening driver drives the box opening operating parts to do linear reciprocating movement, and under the driving of the box opening driver, the moving direction of at least one box opening operating part is opposite to that of another box opening operating part under the driving of the box opening driver; each box opening operating part is provided with a guiding surface and an inserting end; the guiding surfaces are inclined relative to the moving direction of the opening operating parts under the driving of the box opening driver; the inserting ends are positioned at one ends of the guiding surfaces; the conveying assembly is provided with a cyclic conveying route and positioning components distributed on the conveying route; and the moving range of the box opening assembly driven by the lifting assembly is superposed with that of the positioning components. The box opening and conveying device is mainly used for box opening and conveying operations of packaging boxes.
Owner:HANGZHOU ZHONGYA MACHINERY CO LTD
A horizontal single-axis quartz flexible accelerometer test rotary table with a thermostat
ActiveCN107015026AImprove angle measurement accuracyGuaranteed rotation accuracyTesting/calibration of speed/acceleration/shock measurement devicesTest efficiencyBall bearing
A horizontal single-axis quartz flexible accelerometer test rotary table with a thermostat comprises a rotary table bracket component, a dense ball bearing component, a pitch spindle component, an angular contact ball bearing component, a motor component, an encoder component and a thermostat component which are all together seven parts. The dense ball bearing component is mounted on a U-shaped base by means of a left bracket; the angular contact ball bearing component, the motor component and the encoder component are mounted on a U-shaped base via a right bracket; the dense ball bearing component and the angular contact ball bearing component are connected in series via the pitch spindle component so that a quartz flexible accelerometer mounted on a load support plate is rotated about a pitch axis; the thermocouple component is mounted on a foundation by means of the thermostat bracket and ensures that the pitch spindle passes through an inner chamber of the thermostat to achieve a thermostat test of a quartz flexible accelerometer. The test rotary table has characteristics of high test efficiency, reliable performance and low cost.
Owner:JIUJIANG PRECISION MEASURING TECH RES INST
Machining process of gear/gear sleeve with large diameter
InactiveCN103866334ASmall amount of expansion and contractionSmall distortionSolid state diffusion coatingFurnace typesGear wheelEngineering
The invention relates to the field of mechanical manufacturing, and in particular relates to a machining process of a gear / gear sleeve with a large diameter. The machining process comprises the following steps of: step 1, forging; step 2, isothermal normalizing; step 3, machining; step 4, carburizing; step 5, quenching via a pressing machine; step 6, tempering; step 7, lathing of an inner bore; step 8, gear pairing; step 9, shot blasting; step 10, phosphating; and step 11, warehousing. The quenching is carried by using the pressing machine, so that influences of various potential distortion factors existing during the machining and the heat treatment of materials in a production process can be removed or reduced under the action of the pressure. According to the machining process provided by the invention, the distortion of the gear / gear sleeve to be machined is controlled in an acceptability limit; and the problem of surface decarburization is basically eliminated.
Owner:SUZHOU JIEDERUI PRECISION MACHINERY
Train
InactiveCN109808727AAvoid wear and tearAvoid dangerRailway hydrostatic brakesRailway hydrodynamic brakesCouplingEngineering
The invention relates to a train. Air supply braking pipelines located between adjacent carriages of the train are connected through train end connecting devices; each train end connecting device comprises a connecting pipe seat mounted below the centering position of a coupling gear of the adjacent carriages as well as connecting hoses, one end of each connecting hose is connected with a connecting port, and the other end of each connecting hose is connected with the air supply braking pipeline of the corresponding carriage. The train has the advantage that the overall connecting pipelines occupy small space, transverse and longitudinal swinging of the train is effectively borne, and hose wear and pulling and dragging risks due to interference formed by the hoses and the coupling gears inthe swinging process are avoided; the air supply braking pipelines are not required to be cut off manually again during disassembling and reconnecting; by means of the connecting pipe seats, the pipelines are collected to a longitudinal center of the train, so that expansion and contraction quantity of the pipelines due to coupling gear swinging is greatly reduced, pulling and dragging of the connecting hoses are avoided, and randomness and flexibility of connection are increased. The train is applicable to all vehicle models adopting double-pipe air supply.
Owner:CRRC TANGSHAN CO LTD
Clearance cleaning device
PendingCN107900028ASolve pollutionEnsure hygieneReversed direction vortexDispersed particle filtrationMechanical engineeringPeripheral
The invention belongs to the technical field of cleaning equipment and discloses a clearance cleaning device for solving the problem that a large amount of dust is generated during clearance cleaningin the prior art. The clearance cleaning device comprises a machine body; the machine body is connected with a cleaning head through a connection pipe; the clearance cleaning device is characterized in that the cleaning head comprises a first connection pipe and a second connection pipe which sleeves the periphery of the first connection pipe; a blowing cavity is arranged in the first connection pipe; a first fixed plate is arranged on the inner wall of the first connection pipe; blowing pipes which communicate with the blowing cavity are inserted in the first fixed plate; each blowing pipe issleeved with a first limiting plate; the periphery of the part, between the corresponding limiting plate and the first fixed plate, of each blowing pipe is sleeved with a first reset spring; and a negative pressure cavity is arranged between the second connection pipe and the first connection pipe.
Owner:大竹县张家镇中心小学
Household electrical appliance and foot thereof
ActiveCN108221294AMaximum range without compromising auto-levelingReduce vibration amplitudeOther washing machinesTextiles and paperLeveling effectEngineering
The invention provides a household electrical appliance and a foot of the household electrical appliance. The foot comprises a protective sleeve which is fixed at the bottom of the household electrical appliance, an adjusting foot which is arranged in the protective sleeve and capable of moving relative to the axial direction of the protective sleeve, a flexible body assembly in which a hydraulicmedium is contained, wherein the flexible body assembly comprises a flexible telescopic part arranged in the adjusting foot which is driven telescopically to move in the axial direction by the flexible telescopic part under the action of pressure force for leveling, a friction damping assembly which is arranged between the protective sleeve and the adjusting foot for generating frictional dampingto damp the vibration of the household electrical appliance and an elastic buffering component which comprises an elastic buffering end part abutted against the adjusting foot used for buffering the vibration of the household electrical appliance. According to the foot, a better leveling effect is achieved by matching the friction damping assembly and the elastic buffering component with the hydraulic medium in the foot of the household electrical appliance, and better absorbing and adjusting effects can be achieved particular aiming at the vibration generated in the dehydrating process of a washing machine to reduce dehydrating vibration and dehydrating noise.
Owner:QINGDAO HAIER WASHING MASCH CO LTD +2
Electric control type pressure reduction water conveying valve
InactiveCN104565429ASmall amount of expansion and contractionShorten the timeDiaphragm valvesEngine diaphragmsEngineeringElectric control
The invention belongs to the mechanical technical field and relates to fluid pressure execution mechanisms, particularly to an electric control type pressure reduction water conveying valve. The problems that the existing electric control type pressure reduction water conveying valve is poor in sealing performance and low in sensitivity are solved. The electric control type pressure reduction water conveying valve comprises a valve body and a valve cover, wherein the valve body comprises a cover opening and the valve cover is arranged on the valve opening; the valve cover is in an arched shape; a sealing platform is formed on the inner surface of the valve body in a protruding mode; a center line of the sealing platform and the axis of the cover opening are located on the same straight line; a cup is arranged between the valve cover and the valve body; circular-arc-shaped first reinforcing ribs are formed on the outer surface of the cup in a protruding mode; the first reinforcing ribs can abut against the sealing platform; a spring assembly is arranged between the valve cover and the cup; one end of the spring assembly is arranged on the cup; the other end of the spring assembly abuts against the inner surface of the valve cover. According to the electric control type pressure reduction water conveying valve, the sealing performance is good, the pressure in the valve body is stable, and the sensitivity is high.
Owner:NINGBO YAOFENG HYDRAULIC ELECTRICS
Wave plate falling device of welded metal corrugated pipe
The invention discloses a wave plate falling device of a welded metal corrugated pipe, which is mainly characterized in that a lower die assembly comprises a lower die base, a cutting die, an external pressure plate and an internal pressure plate. The upper end of the cutting die protrudes out of the top face of the lower die based and the top face of the cutting die is in a wave plate curve face. The external pressure plate is attached to the outer wall of the cutting die. The top face of the external pressure plate is aligned with the side face outside the cutting die and forms a first chamfered angle with the top end of the external pressure plate at the attached place of the cutting die. The internal pressure plate is placed in the cutting die, and the bottom face thereof leans against the lower die base through an elastic mandrill. The internal pressure plate is attached to the inner wall of the cutting die, and the to top face of the internal pressure plate is aligned with the highest point on the top face of the cutting die and forms a second chamfered angle with the top end of the internal pressure plate at the attached place of the cutting die. An upper die assembly comprises a rubber template fixed on the bottom face of the upper die base. The bottom face of the rubber template is planar. The rubber template flexibly squeezes, molds and cuts the wave plate, and the squeezing stress of the wave plate is small, so that the wave plate does not deform in case of stress recovery, and the molded wave plate is accurate in parameters and burr-free.
Owner:DONGGUAN HUAHUI PRECISION MASCH CO LTD
Novel heat exchanger adopting corrugated tube as heat exchange tube
InactiveCN102032815AIncrease the heat exchange areaReduce weightStationary tubular conduit assembliesTubular elementsPlate heat exchangerEngineering
The invention discloses a heat exchange tube of a novel heat exchanger. A corrugated tube is used as the heat exchange to increase heat exchange area and improve heat exchange efficiency.
Owner:张家港市华菱化工机械有限公司
Slide-type drive shaft for large-swing-angle dustproof sleeve
PendingCN111022516ASmall amount of expansion and contractionReduce crackingYielding couplingSlip couplingDrive shaftStructural engineering
The invention discloses a slide-type drive shaft for a large-swing-angle dustproof sleeve, and mainly solves the problems that breakage and oil leakage of a dustproof sleeve are easily caused due to ahigh shrinkage amount of a dustproof cover during slide of an existing drive shaft, so that the service life of the drive shaft is shortened. The slide-type drive shaft for the large-swing-angle dustproof sleeve is characterized by further comprising a slide element (5), wherein the slide element is slidably arranged on the circumferential outer wall of a middle shaft in the axial direction of the middle shaft; and one end of a first dustproof cover is connected with the slide element, and the other end of the first dustproof cover is connected with the outer wall of a shell body. According to the slide-type drive shaft for the large-swing-angle dustproof sleeve, the dustproof sleeve uses a slide function while being connected with the middle shaft, so that the stretching amount of the dustproof sleeve is reduced, the breakage problem of the dustproof sleeve is greatly reduced, and the service life of the drive shaft is prolonged.
Owner:南京冠盛汽配有限公司
Wave plate falling device of welded metal corrugated pipe
The invention discloses a wave plate falling device of a welded metal corrugated pipe, which is mainly characterized in that a lower die assembly comprises a lower die base, a cutting die, an external pressure plate and an internal pressure plate. The upper end of the cutting die protrudes out of the top face of the lower die based and the top face of the cutting die is in a wave plate curve face. The external pressure plate is attached to the outer wall of the cutting die. The top face of the external pressure plate is aligned with the side face outside the cutting die and forms a first chamfered angle with the top end of the external pressure plate at the attached place of the cutting die. The internal pressure plate is placed in the cutting die, and the bottom face thereof leans against the lower die base through an elastic mandrill. The internal pressure plate is attached to the inner wall of the cutting die, and the to top face of the internal pressure plate is aligned with the highest point on the top face of the cutting die and forms a second chamfered angle with the top end of the internal pressure plate at the attached place of the cutting die. An upper die assembly comprises a rubber template fixed on the bottom face of the upper die base. The bottom face of the rubber template is planar. The rubber template flexibly squeezes, molds and cuts the wave plate, and the squeezing stress of the wave plate is small, so that the wave plate does not deform in case of stress recovery, and the molded wave plate is accurate in parameters and burr-free.
Owner:DONGGUAN HUAHUI PRECISION MASCH CO LTD
A crushing device for construction engineering
InactiveCN110465357BExtended service lifeSmall amount of expansion and contractionGrain treatmentsAugerClassical mechanics
The invention relates to a crushing device for construction engineering. The pulverizing device for construction engineering includes a pulverizing assembly and an output assembly, the output assembly is arranged below the pulverizing assembly, and the output assembly includes a power cylinder, a first one-way clutch and an auger, and the auger passes through the The first one-way clutch is connected to the output shaft of the power cylinder, and the first one-way clutch includes a first steel ring, a second steel ring, a retaining ring, a plurality of torque transmission members, a plurality of sliding blocks and a plurality of A spring member, the first steel ring is fixedly sleeved on the output shaft of the power cylinder. The construction engineering pulverizer is not easy to damage its one-way clutch, and it is convenient to collect dust.
Owner:王海潮 +2
A water pump that is easy to assemble and has good stability
The invention discloses a water pump convenient to assemble and good in stability. The water pump comprises a mounting plate, a machine body is mounted on the upper end of the mounting plate, two connecting pipes are mounted on one side of the machine body, a sleeve ring is fixed to one ends of the connecting pipes, the connecting pipes are slidingly sleeved with sliding sleeves, two sleeves are mounted on the sleeve ring in a penetrating manner, and ejector rods are sleeved with the sleeves. The water pump can be rapidly and conveniently connected with an external water pipe with a flange disc, the connection method is simple, through the multiple manners, connection firmness is ensured, connection seal is improved, the leakage condition is avoided, the application range can be effectively improved, the water pump can be conveniently connected with external water pipes of multiple specifications, meanwhile, during operation, whole stability can be well ensured, when the water pump isnot used, the protection capacity is improved, connecting parts are prevented from being damaged, the influence of vibration or collision on the machine body can be avoided, the service life is prolonged, and work quality during use can be ensured.
Owner:杭州浩水科技有限公司
A telescopic lifting beam used for monorail locomotive in coal mine
ActiveCN114348868BIncrease guide lengthStable and safe situationTravelling gearTrolleysMining engineeringWorking environment
A telescopic lifting beam used for a coal mine monorail locomotive belongs to the technical field of coal mine machinery and solves the technical problems of transporting and placing stacked supports. The device includes a load-bearing beam, a load-carrying trolley and a telescopic arm. The direction of the upper chute and the lower chute are set respectively, and the upper chute and the lower chute are set as one-sided openings. The opening ends of the upper chute and the lower chute are in opposite directions. The end of the free end of the telescopic arm is provided with an overturn cylinder along the horizontal direction, and the overturn cylinder drives the overturn mechanism to rotate around the hinge position; Retract; the top support cylinder drives the top support mechanism to rotate around the root. The present invention adopts a unique hoisting method inside the frame of the stacked bracket, fully utilizes the stretching stroke of the stacked bracket itself, and can adapt to the harsh working environment under the mine.
Owner:TAIYUAN KUANGJI ELECTRIC
A foot for household appliances and household appliances
ActiveCN108221294BReduce vibration amplitudeSmall amount of expansion and contractionOther washing machinesTextiles and paperLaundry washing machineHome appliance
Owner:QINGDAO HAIER WASHING MASCH CO LTD +2
Pulverizing device for construction engineering
InactiveCN110465357AExtended service lifeSmall amount of expansion and contractionGrain treatmentsArchitectural engineeringRetaining ring
The invention relates to a pulverizing device for construction engineering. The pulverizing device for construction engineering comprises a pulverizing component and an output component, wherein the output component is arranged under the pulverizing component and comprises a power air cylinder, a first one-way clutch and a packing auger; the packing auger is connected to an output shaft of the power air cylinder through the first one-way clutch; the first one-way clutch comprises a first steel ring, a second steel ring, a retaining ring, a plurality of torque transmitting members, a pluralityof sliding blocks, and a plurality of a spring members; and the first steel ring is fixedly arranged on the output shaft of the power air cylinder in a sleeving manner. The one-way clutch of the pulverizing device for construction engineering is not easy to damage; and the pulverizing device for construction engineering is convenient for collecting dust.
Owner:王海潮 +2
Horizontal opening wind tunnel-based steel rod support oscillation test mechanism
InactiveCN113267316ASmall amount of expansion and contractionSolve the problem of heavy interferenceAerodynamic testingTunnel wallControl theory
The invention discloses a horizontal opening wind tunnel-based steel rod support oscillation test mechanism, which comprises a model support device, a main body frame and two sets of driving devices; the main body frame is fixedly mounted on an upper turntable and a lower turntable of a horizontal opening wind tunnel test section and performs sideslip movement along with the turntables; the two sets of driving devices are symmetrically and fixedly installed on supporting columns on the two sides of the main body frame, the model supporting device is connected with the power output ends of the two sets of driving devices, each set of driving device is provided with a detection unit, and the two sets of detection units guarantee that the driving devices on the two sides move synchronously; and the model is driven by the two sets of driving devices to do sine oscillation motion with a given rule. According to the invention, the problem of serious interference of a dynamic test support is fundamentally solved; meanwhile, the steel rod support oscillation test mechanism has the characteristics of small expansion and contraction amount, accurate model installation and positioning and high motion index precision; in addition, the problem of interference of the closed wind tunnel wall can be effectively solved, the working difficulty and workload of data correction are reduced, and the accuracy of test data is improved.
Owner:中国航空工业集团公司哈尔滨空气动力研究所
Polyvinyl alcohol fiber oil pattern harness cord thread and its preparing method
InactiveCN1329573CHigh initial modulusSmall amount of expansion and contractionJacquardsYarnState of art
Owner:倪轮官 +1
Electric hydraulic excavator special for tunnel
PendingCN114059606AReduce the maximum elongationEmission reductionMechanical machines/dredgersClassical mechanicsExcavator
The invention provides an electric hydraulic excavator special for a tunnel. The electric hydraulic excavator special for the tunnel comprises a walking X frame assembly used for moving on the ground, an upper rack assembly serving as an external main body structure of the excavator, a power output assembly used for providing power support for the excavator and a mechanical arm assembly used for installing and driving an excavating workpiece to move. According to the electric hydraulic excavator special for the tunnel, the mechanical arm assembly is arranged and mainly used for achieving the excavation effect on the interior of the tunnel; the first supporting arm and the second supporting arm which are equal in length are arranged, so that the gyration radius of the first supporting arm and the gyration radius of the second supporting arm are further reduced; the first hydraulic assembly and the second hydraulic assembly are used for driving the first supporting arm and the second supporting arm to rotate respectively, so that the stretching amount of the first supporting arm and the second supporting arm is greatly reduced, and energy consumption is further reduced; and in addition, the maximum stretching amount of the first supporting arm and the second supporting arm is reduced, and the first supporting arm and the second supporting arm can freely move in the tunnel.
Owner:龙道恒
Side-spraying shower capable of being lifted and bent
PendingCN114343459AMeet bathing needsImprove the performance of bath diversificationBathsDouchesStructural engineeringMechanical engineering
The invention discloses a liftable and bendable side spraying shower, which comprises a fixed part, a side spraying device and a swing arm water outlet mechanism, the side spraying device can be connected to the fixed part in a liftable manner, and the swing arm water outlet mechanism can be connected to the side spraying device in a swinging manner and can swing between a first position and a second position, the first position is aligned with the side spraying device to form side spraying, and the second position is bent relative to the side spraying device. The shower has the advantages that the shower is provided with the side arm water outlet, the swing arm water outlet and the handheld water outlet, the rotating shaft is arranged between the side arm water outlet and the swing arm water outlet, and the swing arm water outlet can rotate around the rotating shaft to adjust the water outlet angle, so that more shower requirements can be met.
Owner:XIAMEN SOLEX HIGH TECH IND CO LTD
Walking wheel type moving device and control method thereof
The invention belongs to the technical field of moving devices, discloses a walking wheel type moving device and a control method thereof, and aims to solve the problem that the energy utilization rate is low due to the fact that driving of wheels of an existing wheel step type moving device and movement of supporting legs of the existing walking wheel type moving device are mutually independent. When the moving device adopts a front wheel set and a rear wheel set to normally move, a power transmission route is an internal combustion engine-ISG motor-driving motor-front and rear wheels and the rear wheel set, and redundant electric energy generated by redundant ISG motors is stored in a power battery; when the moving device adopts a front supporting leg, a middle supporting leg and a rear supporting leg to climb over obstacles, the power transmission route is the combination of the internal combustion engine, the power motor, the ISG motor, the oil pump and the supporting legs. Therefore, on the premise that the supporting legs can drive the moving device to move, energy consumption can be reduced.
Owner:NAT UNIV OF DEFENSE TECH
Pine nut kernel juice and its production process
The formula of pinenut kernel fruit juice contains 5-15% of pinenut kernal, 5-10% of white sugar, 0.1% of preservative and 75-90% of water, its production method includes the following steps: placing peeled pinenut kernal in emulsifying tank, injecting 5% of rice vinegar and soaking for 10-12 hr. then placing the soaked pinenut kernel in emulsifying tank, adding 35 of edible alkali liquor and soaking 10-12 hr., using three washing tanks in turn to wash to remove soft peel and alkaline substance, grinding to obtain the invented pinenut fruit juice beverage with rice nutrients.
Owner:张立军
A wave compensation device for high pile cap boarding operation
ActiveCN106828789BMotion compensationCompensate for coupled motionCargo handling apparatusVessel partsHydraulic cylinderElectricity
The invention discloses a wave compensating device for ascending operation of a high-rise pile cap, and belongs to the technical field of basic maintenance work of offshore wind piles. The wave compensating device comprises a horizontal ladder part, a hydraulic drive compensation mechanism and a base mechanism, wherein the hydraulic drive compensation mechanism is arranged on the base mechanism; the horizontal ladder part is arranged on the hydraulic drive compensation mechanism; the hydraulic drive compensation mechanism drives the horizontal ladder part to move; and the base mechanism is arranged on a bearing hull. The wave compensating device is driven by a hydraulic device to control a hydraulic cylinder to stretch and contract; and when a ship carries out three-degree-of-freedom motion of rolling, pitching and heaving, effective compensation is achieved, so that a worker more safely passes a horizontal ladder. Feedback control is adopted by the wave compensating device for ascending operation of the high-rise pile cap, so that the wave compensating device is strong in anti-jamming capability, good in adaptability, high in compensation accuracy and stable in compensation performance.
Owner:JIANGSU NEW HANTONG SHIP HEAVY IND
Shockproof packaging box of optical splitter
ActiveCN103257419BSmall amount of expansion and contractionEasy to operateFibre mechanical structuresEngineeringLight wave
The invention discloses a shockproof packaging box of an optical splitter. The shockproof packaging box of the optical splitter comprises a packaging box body. An optical fiber coil-in hole is formed in the right end surface of the packaging box body, and a row of optical fiber coil-out holes are formed in the right end surface of the packaging box body. An optical fiber protector is arranged in the center of the inner surface of the packaging box body. An installation base is arranged on the portion, close to the optical fiber coil-in hole, of the inner surface of the packaging box body. A steel pipe sleeve is installed on the installation base in a supporting mode, and a buffering shockproof layer is arranged between the interior of the steel pipe sleeve and the planar light wave circuit splitter and attached to the inner surface of the steel pipe sleeve closely. According to the shockproof packaging box of the optical splitter, through the improvement of the internal structure of the optical splitter, the optical splitter can conform to 'technical requirements for passive optical splitter of China telecom' when mechanical performance tests of the optical splitter are carried out, and the service life of the optical splitter is prolonged effectively.
Owner:ZHONGTIAN BROADBAND TECH +1
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