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512results about How to "Shock absorbing" patented technology

Convenient method for preparing binder-free stannic oxide/carbon fibrofelt for negative pole of high-performance lithium ion battery

The invention discloses a convenient method for preparing binder-free stannic oxide/carbon fibrofelt for a negative pole of a high-performance lithium ion battery. The method disclosed by the invention comprises the following steps: dissolving polyacrylonitrile and stannous chloride which have certain concentrations to a N'N-dimethyl formamide solution, magnetically stirring the solution of polyacrylonitrile, the stannous chloride and the N'N-dimethyl formamide solution until the solution is clarified, electrostatically spinning the solution, and finally annealing the obtained solution which is obtained at a high temperature twice to obtain Sn-SnOx uniformly loaded nanometer composite materials of the carbon fibrofelt. For a compound which is prepared by the method disclosed by the invention, since the electrostatic spinning method is adopted, nanometer particles of metal-metallic oxide are uniformly dispersed into buffer substrate carbon fiber, and the circulation specific capacity and the stability of materials for the negative pole of the lithium ion battery are effectively improved. The preparation technology disclosed by the invention has the advantages that the operation is simple, the cost is low, the efficiency is high, the large-scale and industrial production is easy to realize, and the application range is broad.
Owner:HUNAN UNIV

Secondary tensioning prestressed assembly-type corrugated steel web composite beam and construction method thereof

ActiveCN104988844AReduce back archImprove erection accuracyBridge structural detailsBridge erection/assemblyReinforced concretePre stress
The invention discloses a secondary tensioning prestressed assembly-type corrugated steel web composite beam. The composite beam comprises a composite beam unit which is formed in a way that a plurality of prefabricated corrugated steel web beam bodies are connected, each prefabricated corrugated steel web beam body comprises a corrugated steel web, a concrete top plate and a concrete base plate, the concrete top plate is connected with the corrugated steel web through an upper connecting piece, and the concrete base plate is connected with the corrugated steel web through a lower connecting piece; the transverse connecting end of each of the concrete top plate and the concrete base plate is provided with a transverse connecting steel bar, vertical connecting steel bars are arranged in the concrete top plate and the concrete base plate in balance, primary tensioning prestressed channels and secondary tensioning prestressed channels are arranged in the concrete base plate symmetrically, primary tensioning prestressed steel beams are arranged in the primary tensioning prestressed channels in a penetrating manner, and secondary tensioning prestressed steel beams are arranged in the secondary tensioning prestressed channels in a penetrating manner. The invention also provides a construction method of the composite beam. According to the invention, the prestressed steel beams are tensioned twice, inflected arch phenomena, of the prefabricated corrugated steel web beam bodies, caused by concrete shrinkage and creep can be reduced, the erection precision of the bridge is improved, and the usage performance of the prestressed assembly-type corrugated steel web composite beam can be improved.
Owner:HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD +1

Machine tool main shaft axle journal shaft bushing friction performance test machine

InactiveCN101339113AOvercome the disadvantage of not being easy to measure accuratelyAccurate online measurementMachine bearings testingInvestigating abrasion/wear resistanceInterference fitCoupling
The invention relates to a tribological performance testing device of journal and bearing bush of the main shaft of machine tool, and relates to the testing device, in particular to a simulating and testing device in the friction and wear of the journal and bearing bush of the main shaft of machine tool, belonging to the technological field of tribology. The simulating and testing device comprises a driving part, a testing part, a loading part, and a measuring system; the transducer of the driving part is connected with a speed regulating motor; the main shaft of the speed regulating motor is connected with a support shaft through a coupling device; the support shaft is a ladder shaft; the strain beam of the testing part is vertically arranged at the upper end of an upper sample fixture; a bolt is used for locking an upper sample in the square groove at the lower end of the upper sample fixture; an annular lower sample is arranged below the upper sample; the upper end of the strain beam of the loading part is connected with a force exerting lever in the way of interference fit; one end of the force exerting lever is provided with a clump weight and the other end is provided with a weight frame. The testing device can simulate the actual working condition, has a simple structure, can simultaneously estimate the tribological properties of the material of the sliding bearing pair and the lubricating medium, and can realize the accelerated wear test.
Owner:SOUTHEAST UNIV

Traction device for suspended monorail vehicle

The invention provides a traction device for a suspended monorail vehicle. The traction device is fixedly connected with a sleeper beam above a bogie frame. The traction device comprises a center pin inserted into the center of the interior of the bogie frame, and a traction base connected to the lower end of the center pin in a sleeving mode, wherein a connecting plate is arranged on the traction base, parallel traction pull rods are arranged at the two ends of the connecting plate perpendicular to the connecting plate in a zigzag mode, one end of each traction pull rod is hinged to the connecting plate of the traction base, the other end of each traction pull rod is hinged to a traction pull rod installation base, an elastic element is arranged at the position where the center pin is connected with the traction base in the sleeved mode, and an elastic transverse stopping block is transversely arranged inside the bogie frame. According to the traction device, large transverse force is transmitted through the elastic transverse stopping block and the center pin; the movement of a vehicle body relative to a bogie is fully guaranteed by means of an elastic rubber joint through the traction device provided with the center pin and the two pull rods arranged in the zigzag mode; meanwhile, the characteristic of the traction pull rods arranged in the zigzag mode that centering performance is high is fully utilized, traction force and braking force are well transmitted, and the curve passage capacity of the vehicle is improved.
Owner:SOUTHWEST JIAOTONG UNIV

Adaptive under-actuated non-cooperative target space capturing mechanism

The invention discloses an adaptive under-actuated non-cooperative target capturing mechanism. An existing capturing mechanism is poor in adaptation of the size and shape of a target. A nut driving plate and a stretching platform form a helical pair with a first thread and a second thread of a variable pitch screw respectively; the nut driving plate is provided with an armature, and the stretchingplatform is provided with an armature and a travel switch; a mechanical arm driving plate is connected with the nut driving plate through a flexible connecting part; three five-rod type mechanical arm bodies are uniformly distributed in the circumferential direction and connected to the mechanical arm driving plate; a third connecting rod in each five-rod type mechanical arm body can cooperate with a torsional spring to be converted to be an under-actuated mechanism; mechanical arm tail end execution mechanisms are connected to the three five-rod type type mechanical arm bodies; a buffer guide mechanism is located in the center of the circumference where the three five-rod type type mechanical arm bodies are uniformly distributed. Accordingly, a single power source is adopted for achieving unfolding of three mechanical arms, the mechanism has the multi-degree of freedom and can flexibly adapt to target satellite spray pipes with different sizes and shapes.
Owner:ZHEJIANG SCI-TECH UNIV

Glass transporting device

The invention discloses a glass transporting device in the field of buildings. The glass transporting device comprises rolling wheels, supporting legs, a first base plate, limiting grooves, a pushingrod, sucking discs, movable plates, movable rods, threaded holes, dovetail blocks, a cross rod, a screw rod, buffer pads and a second base plate, wherein the limiting grooves are uniformly formed in the first base plate, limiting rods are connected into the limiting grooves in a sliding mode, the tops of the limiting rods are fixedly connected with the bottom of the second base plate, damping springs sleeve the limiting rods, vertical plates are uniformly and fixedly connected to the second base plate, the buffer pads are arranged on the right side walls of the vertical plates and the top of the second base plate, the cross rod is fixedly connected to the middle ends of the rear walls of the vertical plates, the movable rods are connected to the cross rod in a sliding mode, the dovetail blocks are arranged at one ends of the movable rods, the threaded holes are formed in the ends, close to the dovetail blocks, of the movable rods, the movable rods are connected with the screw rod in athreaded mode through the threaded holes, the screw rod is connected with the vertical plates in a rotating mode, and the other ends of the movable rods are fixedly connected with the middle ends of the rear walls of the movable plates. The glass transporting device has the advantages that the structure is simple, and the transportation safety performance of building glass is good.
Owner:NANJING HUIKANG GLASSWORK CO LTD

Conference show device

The invention discloses a conference show device. The conference show device comprises two lifting rods, the bottom ends of the lifting rods are fixedly connected with foot pads, the top ends of the two lifting rods are sleeved with a telescopic blackboard, cylindrical grooves are formed in the positions, close to the two sides, in the telescopic blackboard, the lifting rods are sleeved with the cylindrical grooves, a first telescopic rod is fixedly connected between the two lifting rods, two fixing plates are symmetrically fixed to the top of the telescopic blackboard, a second telescopic rodis fixedly connected between the two fixing plates, two limiting cylinders are symmetrically and fixedly arranged on the back of the telescopic blackboard, openings are symmetrically formed in the opposite sides of the two limiting cylinders, torsion springs are fixedly connected to the two upper and lower opposite inner walls of the limiting cylinders, the opposite ends of the two torsion springs are jointly and fixedly connected with rollers, and projection cloth is wound between the two rollers. The device is simple and reasonable in structural design, convenient to operate, capable of adjusting the height of a show plate, and adjusting the size of the telescopic blackboard and the projection cloth, and convenient to move.
Owner:广州小造电子商务有限公司

5G base station heat dissipation system based on big data processing

The invention relates to the field of heat dissipation, in particular to a 5G base station heat dissipation system based on big data processing, which comprises an antenna shell, a fixing mechanism, an air inlet mechanism, a heat dissipation mechanism, a drainage mechanism, a placement mechanism, a locking mechanism and an observation structure, the antenna shell is beneficial to placement and protection of the transmitting equipment; under the action of the placing mechanism; the launching equipment can be conveniently fixed; under the action of the locking mechanism; the transmitting equipment can be conveniently put into and taken out of the antenna shell; under the action of the heat dissipation mechanism; absorption of a large amount of heat generated by the transmitting equipment isfacilitated; under the action of the air inlet mechanism; the air inlet structure is arranged in the antenna shell, so that cold air dissipates heat of the heat dissipation mechanism, heat is led out,heat dissipation or rainwater flowing into the antenna shell from the outside can be drained under the action of the drainage mechanism, the air inlet amount of the air inlet structure can be adjusted according to the temperature change through the temperature change of the antenna shell, timely heat dissipation of equipment can be guaranteed, and normal use of the equipment is guaranteed.
Owner:盛源

Stretcher type sprayer bottom frame with damping performance

The invention discloses a stretcher type sprayer bottom frame with damping performance, and relates to the related technical field of sprayers. The stretcher type sprayer bottom frame comprises a bottom plate. The two sides of the top of the bottom plate are in sliding connection with damping devices. A transverse groove is fixedly connected to the tops of the damping devices. A lead screw is rotationally connected between the two sides of the inner wall of the transverse groove. The two sides of the surface of the lead screw are in threaded connection with movable blocks. The tops of the two movable blocks are fixedly connected with vertical plates. The tops of the vertical plates penetrate the top of the transverse groove and extend to the outer portion of the transverse groove. According to the stretcher type sprayer bottom frame with the damping performance, a certain buffering space is provided for a sprayer, the situation that inner elements of the sprayer are damaged due to jolting vibration is avoid, and usage is influenced is avoided, and stability is improved; and the sprayer can be conveniently fixed or detached, the sprayer can be conveniently cleaned or maintained, protection of the sprayer is facilitated, and the service life of the sprayer is prolonged.
Owner:江门市植保科技有限公司

Stocking system and method

The invention discloses a stocking system. A preordering passage is connected between a warehouse discharge line body and a conveying line body and consists of one group or more than one group of conveying passages parallelly connected between the conveying line body and the warehouse discharge line body, the conveying line body conveys cargos ordered according to the warehouse discharge sequence into the corresponding group of conveying passages in the preordering passage, the corresponding group of conveying passages store the cargos ordered according to the warehouse discharge sequence, when the sorting line cargo ordering instructions from a corresponding sorting line are received, the cargos ordered according to the warehouse discharge sequence are sequentially pushed to the warehouse discharge line body according to a first-in first-out principle, and the cargos ordered according to the warehouse discharge sequence are conveyed to the corresponding sorting line by the warehouse discharge line body. Simultaneously, the invention also discloses a stocking method, when the system and the method disclosed by the invention are adopted, the influence on the subsequent sorting process flow caused by abnormal conditions in the stocking process is reduced, and the fault resistance and interference resistance capability of the stocking system are improved.
Owner:POTEVIO LOGISTICS TECH
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