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57results about How to "Small additional weight" patented technology

Elevator installation with a braking device and method for braking and holding an elevator installation

An elevator installation has braking equipment for braking and holding an elevator car which moves in vertical direction within guide tracks or rails. The braking equipment consists of at least two brake units each comprising a normal force regulation device that sets a normal force (FN) in correspondence with a normal force value determined by a brake control unit and / or a locking device that locks the brake unit in a set braking position and which preferably maintains the set braking position in the case of an interrupted energy supply. The braking equipment provides a gentle braking or holding of the elevator car, which corresponds with the operational state of the elevator installation, with a low energy requirement.
Owner:INVENTIO AG

Parallel type vehicle oil electric mixed dynamic system

The invention discloses a parallel automotive oil-electric hybrid power system, which comprises an engine, a motor, and a gearbox; and the main improvement comprises: one end of a motor shaft is connected with a shaft of the engine through an unidirectional clutch and a torque limiting clutch, the other end of the motor shaft is connected with an input shaft of the gearbox, and an output shaft of the gearbox is connected with a driving shaft of wheels. The system only needs to control the action of the coupling of the torque limiting clutch or a three-shift clutch when starting the engine during the driving, so as to simplifies control process, and greatly shortens starting time (the time is only between 0.3 and 0.4 second and is shortened for 2 to 4 times compared with the prior art); at the same time, during the starting, a main clutch does not need to be disconnected and the power output of the motor is still maintained, so that a vehicle is steady and the driving performance of the vehicle can not be reduced. The invention uses an intelligent controller to realize various functions of the oil-electric hybrid system and ensure that the system has good driving performance. The system also has the advantages of simple structure, light additional weight, small volume and low cost.
Owner:JIANGXI DINGSHENG NEW MATERIALS TECH CO

Articulated type double-rotor flying robot

The invention relates articulated type double-rotor flight robot, comprising Hooke's hinge driver, Hooke's hinge, left aileron, left rotor driver, left rotor, right aileron, attitude sensor, body and power source. The left rotor and left rotor driver are fixed on left aileron, the right rotor and right rotor driver are fixed on right aileron, the left aileron and right aileron are connected by Hooke's hinge, the position is controlled according to the order produced by the information of attitude sensor and the remote command, the attitude sensor is installed on body, and the power source is installed under body. The invention has the advantages of high automation, simple structure, and light additional weight. The invention is used for the flight work which has little space, improving the design mode of mini flight robot.
Owner:NINGBO XINGJIAN SPACE MACHINERY

Implantable blood pump adopting driven suspension bearing

The invention discloses an implantable blood pump adopting a driven suspension bearing. A T-shaped rotor with a drainage groove arranged in the inner hole is implanted between an upper pump casing and a lower pump casing; the large end of the rotor is an impeller consisting of 4, 6 or 8 blades with dip angles; driving magnet coils are implanted in the periphery of the inner wall of the lower pump casing; suspension permanent magnet outer rings are implanted in longitudinal symmetry in the driving magnet coils on the inner wall of the lower pump casing; driving permanent magnet rings are implanted in the periphery of the outer ring of the rotor; suspension permanent magnet inner rings are implanted in longitudinal symmetry in the driving permanent magnet rings on the outer ring of the rotor; the suspension permanent magnet outer rings and the driving magnet coils on the lower pump casing correspond to the suspension permanent magnet inner rings and the driving permanent magnet rings on the rotor; the outlet of the pump is arranged in the connection position between the upper pump casing and the upper part of the lower pump casing; and the bottom surface of the lower pump casing, corresponding to the small end of the rotor, is in a structure comprising 4, 6 or 8 bulges with dip angles. The pump has the advantages of less wear, less consumption, high shock resistance, reduced energy input of the blood pump, and reduced additional weight of the blood pump, therefore the blood pump is convenient to be developed to the light and portable type direction.
Owner:ZHEJIANG UNIV

Hydrodynamic suspension bearing for artificial heart

The invention discloses a hydrodynamic suspension bearing for artificial heart. A rotor with arc inner top surface is embedded in a circular groove of stator with arc top, a circular permanent-magnet magnetic steel is arranged on the inner ring of the rotor, a electromagnetic coil is fixed on the outer ring of the stator, the top of the stator is provided with a pitch-variable helical groove, a constant-pitch helical groove is arranged on the outer ring of the stator, an impeller is arranged at the upper top of the stator and in the pump shell, the pump shell is integrated with the stator, the blood flow in from the inlet of the pump shell, most of blood flow out from the outlet of the pump shell by the rotating of the impellor, a small amount of blood form a closed loop in the clearance between the helical grooves of the rotor and the stator, the clearance between the lower surface of stator and the bottom of the rotor and clearance between the inner wall of the rotor and the stator, and is merged with the blood at the inlet. The invention has simple structure, less bearing wearing, small heating amount and power consumption, reduces the energy input of the artificial heart, thus being beneficial for the light and portable artificial heart.
Owner:ZHEJIANG UNIV

Technology for anti-buckling and reinforcing metal structure by adopting fiber-reinforced composite

ActiveCN101575915AEasy constructionSmall impact on production and useBuilding repairsSolid lightFiber-reinforced composite
A method for anti-buckling and reinforcing by a fiber-reinforced composite belongs to the technical field of metal component anti buckling and reinforcing and is characterized in that the method comprises the following three different and independent reinforcing methods of: filling solid light materials, fiber-reinforced composite profiles and wrapping fiber cloth for reinforcement; filling the solid light material; subsequently wrapping the fiber cloth for reinforcement; fully sheathing the fiber-reinforced composite sleeve on the reinforced steel component and filling the solid light material subsequently; and reinforcing the component by wrapping the fiber cloth. The reinforcing method is flexible, convenient, fast and safe, has small effects on the structure, has light additional weight, obviously improves the bearing capability, and can be combined with other reinforcing types.
Owner:TSINGHUA UNIV

Blood passive control suspension bearing applied to implantable centrifugal blood pump

InactiveCN101601875AAvoid predisposing factors for blood clotsImprove reliabilitySuction devicesImpellerBlood pump
The invention discloses a blood passive control suspension bearing applied to an implantable centrifugal blood pump, which is a novel blood pump supporting device, wherein annular permanent magnet steel is arranged on a rotor, an electromagnetic coil is fixed on a stator, the top and the bottom of the stator are provided with spiral grooves, an inner ring of the stator is provided with an arc-shaped groove, the upper top surface of the rotor is provided with an impeller which is arranged in a pump shell, and the pump shell is connected with the stator and a base into an integral body; and blood flows in from the inlet of the pump shell, most of the blood flows out from the outlet of the pump shell through the rotation of the impeller, and a small amount of the blood passes through a circular hole in the center of the rotor, a gap between the lower surface of the rotor and the base, the spiral groove at the bottom of the stator, a gap between the rotor and the stator and the spiral groove on the top of the stator which form a secondary flow passage, and then converges with the blood at the outlet. The blood passive control suspension bearing has a simple structure, can ensure less bearing wear, small heat productivity and small power consumption, and is advantageous for the blood pump to be developed towards a light and portable direction.
Owner:ZHEJIANG UNIV

Wheelchair horizontality regulating mechanism

InactiveCN102488596AEasy to adjustAutomatically adjust lengthWheelchairs/patient conveyanceCross connectionWheelchair
The invention provides a wheelchair horizontality regulating mechanism. The regulating mechanism comprises a gravity center wheel, two crank arm push rods, two connecting lines, and a support shaft, wherein the gravity center wheel and the support shaft are in cross connection, and the gravity center wheel is connected with the two crank arm push rods through the connecting lines. In the regulating mechanism, the gravity center wheel regulation mechanism is used to always keep the stretch force for the vertically downward gravity center when the wheelchair climbs or gets down the stairs; the mobile and stretchable crank arm push rods at the head part allow the front part or the rear part of the seat to be lifted to regulate the horizontality of the wheelchair; and the horizontality regulation of the seat and the stair climbing and getting downstairs of the wheelchair are synchronous, and the regulation amplitude is in proportion to the wheelchair inclination. The invention adopts simple mechanical parts to realize automatic regulation, no additional power is needed for driving, no manual intervention control is needed, and the advantages of low cost, simple structure, and easiness in realization, are achieved.
Owner:刘学明 +1

Suspension permanent magnetic blood pump

The invention discloses a suspension permanent magnetic blood pump. The invention is characterized in that a cavity of the interior of an upper pump cover consists of a perfect circular truncated cone and an upper volute runner cavity, the conical surface of the perfect circular truncated cone is embedded with a suspension permanent magnetic ring, a cavity of the interior of a lower pump cover consists of an inverted circular truncated cone and a lower volute runner cavity, the conical surface of the inverted circular truncated cone is embedded with a suspension permanent magnetic ring, a cylinder-shaped bulge of the middle of the lower pump cover is internally embedded with a magnet coil, a rotor consists of a ring fixed mount and dentation-shaped blades, wherein the perfect conical face section and the inverted conical face section of the external surface of each detation-shaped blade are respectively embedded with a suspension permanent magnetic sheet, and the cylindrical section face of the internal surface of each detation-shaped blade is respectively embedded with a driving permanent magnetic sheet. When in use, blood enters from a pump inlet, passes through the runner between the rotors through the runners between the blades, and flow towards a pump outlet along the volute runners between the upper pump cover and the lower pump cover. The invention can ensure that blood in small gap in the blood pump is timely updated and that the blood pump has less wear, small heat productivity and small power consumption.
Owner:ZHEJIANG UNIV

Offshore wind turbine comprising impressed current cathode anticorrosion protection and monitoring device

The invention discloses an offshore wind turbine comprising an impressed current cathode anticorrosion protection and monitoring device. The device comprises a steel structure foundation, wherein a column foot platform is arranged on the steel structure foundation; a tower is fixed on the column foot platform; a wind power main machine is arranged at the upper end of the tower; the steel structure foundation is connected with the impressed current anticorrosion protection and monitoring device; the impressed current anticorrosion protection and monitoring device comprises a monitor arranged on the column foot platform, a controllable direct current power supply, a potential measuring instrument, an auxiliary anode and a reference electrode, wherein the auxiliary anode and the reference electrode are fixed on the steel structure foundation; an anode shielding layer with a physical barrier function covers the surface of the auxiliary anode; the negative electrode of the controllable direct current power supply is connected with the steel structure foundation; the positive electrode is connected with the auxiliary anode; and the auxiliary anode is electrically connected with the steel structure foundation through a seawater medium after the circuit is communicated so as to form a closed loop. The invention aims to provide the offshore wind turbine which is provided with the impressed current cathode anticorrosion protection and monitoring device, has an electrochemical anticorrosion protection function and is convenient for implementation and maintenance.
Owner:GUANGDONG MINGYANG WIND POWER IND GRP CO LTD

Preparation method of metal coating on surface of carbon fiber composite material

The invention provides a preparation method of a metal coating on the surface of a carbon fiber composite material, and belongs to the technical field of surface treatment of materials. The preparation method includes the following steps that firstly, the carbon fiber composite material is subjected to vacuum baking, grinding and wiping to obtain a pretreated composite material; secondly, the surface of the pretreated composite material is coated with resin metal organic hybrid paint to obtain an interface coating; the surface of the obtained interface coating is sandblasted and then sprayed with deposited metal to obtain the carbon fiber composite material with the metal coating on the surface. By means of the preparation method, the surface of the prepared metal coating is uniform and dense, and the bonding strength between the metal coating and the carbon fiber composite material is high.
Owner:BEIJING SATELLITE MFG FACTORY

Checkweigher for weighing slide way

The invention relates to a checkweigher for weighing a slide way. The checkweigher comprises a third support frame and a fourth support frame, wherein a weighing sensor is arranged on the third support frame, and a weighed slide way which is obliquely placed is arranged on the weighing sensor; an eliminating platform and an eliminating and grading mechanism are arranged on the fourth support frame; the eliminating platform is arranged below a discharge outlet of the weighed slide way; and the weighed slide way is in rigid connection with the stressed end of the weighing sensor through a force guide rod, an included angle between the design stressed direction of the weighing sensor and the material sliding direction of the weighed slide way is B, and B is more than 0 degree and less than 90 degrees or B is more than 90 degrees and less than 180 degrees. The back end of the weighed slide way and the front end of the eliminating platform are opposite with a spacing interval and are not in contact, and the weighed slide way is higher than the front end of the eliminating platform, so that the checkweigher solves the problems that a rotating motion part in a weighing and metering unit of an existing separating and checking scale seriously affects weighing precision, economy, practicality and efficiency, as well as the problems that an eliminating and grading device affects the weighing precision and the manufacturing, debugging and maintenance cost.
Owner:SHANDONG SETAQ INSTR

Sliding track bracket for fixing deep sea pressure-resistant cabin

The invention belongs to the field of deep sea structures, and in particular discloses a sliding track bracket for a fixing deep sea pressure-resistant cabin. A cabin cover clamping plate and a mounting support rack are arranged front and back; both sides of the cabin cover clamping plate and the mounting support rack are connected through sliding tracks; the sliding tracks comprise guide tubes and guide rods; the guide tubes are connected with one side of the mounting support rack; one end of each guide rod is connected with the cabin cover clamping plate on a same side; the other ends of theguide rods penetrate into the guide tubes and stretch and withdraw relatively; a fixed pressure-resistant cabin is arranged on the mounting support rack; a cabin fixing belt is arranged on the pressure-resistant cabin; both sides of the cabin fixing belt are respectively connected with both sides of the mounting support rack to fix the pressure-resistant cabin; a pressure-resistant cabin cap is clamped on the cabin cover clamping plate; and the guide rods are stretched and withdrawn relative to the guide tubes, then the pressure-resistant cabin cap is driven by the cabin cover clamping plateto make reciprocation movement, and opening and closure of the pressure-resistant cabin are achieved. The sliding track bracket is simple in structure mode, convenient to mount, and applicable to mounting of pressure-resistant cabins of different sizes, a small space is occupied after mounting, and convenience can be brought to equipment arrangement.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Mixed type passive suspended centrifugal blood pump

The invention discloses a mixed type passive suspended centrifugal blood pump. A shell cavity body consists of a positively cylindrical cavity and an inversely cylindrical cavity, wherein the positively cylindrical conical surface is embedded with a suspended permanently magnetic ring, and the inversely cylindrical conical surface is embedded with an electromagnetic coil; an inverse cone-shaped circular ring at the lower end of a rotor is embedded with a driving permanently magnetic ring, an upper part and a lower part of an outer surface of the inverse cone-shaped circular ring are provided with a spiral flow guiding groove respectively, and an inner surface of the inverse cone-shaped circular ring is provided with two inverse cone-shaped spiral guiding blades at equal intervals along the circumferential direction; and the upper end of the rotor is provided with cone-shaped circular ring segments at equal intervals along the circumferential direction, and each cone-shaped circular ring segment is embedded with a suspended permanently magnetic plate. When the blood pump works, the blood flows in from an entrance, and flows to an exit through the spiral guiding blades and the central holes of the spiral guiding blades, and a small part of blood at the exist flows through a gap between the rotor and the inner surface of the shell and the space between the cone-shaped circular ring segments and joins the blood at the entrance under the action of the pressure difference between the entrance and the exit and the upward spiral flow guiding groove and the down ward spiral flow guiding groove on the outer surface of the rotor. The blood pump has the advantages of less abrasion, less heat production and lower energy consumption.
Owner:ZHEJIANG UNIV

Tail rudder operated rotor flying robot

The invention relates the tail rudder rotor flight robot, comprising body, rotor, rotor driver, three tail rudders, tail rudder controller, three tail rudder drivers, attitude sensor and power source. The rotor driver is directly fixed on body, and the output of it is connected with rotor. The tail rudder controller and three tail rudder drivers is installed under body, the tail rudder controller auto produces the tail rudder driver order according to the information of attitude sensor and the order of operation crews, on the output end of three tail rudder drivers there are tail rudder, the attitude sensor is installed in the center of body, and the power source is installed on the two sides of body. The invention has the advantages of high automation, simple structure, and light additional weight. The tail rudder can utilize the downwash air flow coursed by rotary-vane turning, replacing the auto inclinator, and realizing the new pattern flight mode without tail paddle.
Owner:SHANGHAI JIAO TONG UNIV

Impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres

An impact-resisting damping device with multi-freedom-degree high-damping viscoelastic damping semi-spheres is characterized in that the damping device is a sealed hexahedron device combined by a damping base, two damping cavity lateral covers, a damping cavity front cover and a damping cavity upper cover. A mechanical structural component inner cavity is formed in the vibration damper. The damping semi-spheres are attached to the entire inner wall of the mechanical structural component inner cavity. A damping cavity for mounting damping parts is formed in vibration damper. The damping base comprises a front positioning seat, a damping cavity base plate and a damping cavity rear plate. Each semi-sphere is made of high-viscoelasticity, high-damping and multi-freedom-degree polyether urethane materials. By the damping device, normal operation of highly-sensitive equipment under vibration and impact can be guaranteed.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI

Pedaled book page turner

The invention discloses a pedaled book page turner. The pedaled book page turner comprises a tabletop, and is characterized in that two opposite slide groove rails are arranged on the tabletop; paired slide blocks are arranged in the two opposite slide groove rails; a page-turning line is connected between every pair of slide blocks; a long execution rod which swings left and right is hinged on a pedestal on the lower parts of table legs; a short execution rod is hinged with the upper end of the long execution rod and penetrates through a long groove hole of the tabletop; a hook is hinged to the upper end of the short execution rod and slides in slide grooves in the front side and the back side of the tabletop; a foot rest lever is hinged on another pedestal below the tabletop; the left end of the foot rest lever is a pedal part; a reset counterweight is arranged at the right end of the foot rest lever; the foot rest lever is hinged with a power swing rod; the power swing rod is hinged with a connecting rod; the connecting rod is fixedly connected with a driving rod through a rotating shaft; the rotating shaft is arranged on a fixing base; the other end of the driving rod is connected with a shifting rod; the shifting rod is positioned in a long groove in the long execution rod; and a thread releasing device is fixedly arranged on the right side of the tabletop. The pedaled book page turner has the beneficial effects that books with any size sold in the market can be turned; and a special power source is not required, the turner is operated by a human foot and is simple and convenient to operate, continuous page turning can be realized, and the addition weight is light.
Owner:SHENYANG AGRI UNIV

Technology for anti-buckling and reinforcing metal structure by adopting fiber-reinforced composite

ActiveCN101575915BEasy constructionSmall impact on production and useBuilding repairsSolid lightFiber-reinforced composite
A method for anti-buckling and reinforcing by a fiber-reinforced composite belongs to the technical field of metal component anti buckling and reinforcing and is characterized in that the method comprises the following three different and independent reinforcing methods of: filling solid light materials, fiber-reinforced composite profiles and wrapping fiber cloth for reinforcement; filling the solid light material; subsequently wrapping the fiber cloth for reinforcement; fully sheathing the fiber-reinforced composite sleeve on the reinforced component and filling the solid light material subsequently; and reinforcing the component by wrapping the fiber cloth. The reinforcing method is flexible, convenient, fast and safe, has small effects on the structure, has light additional weight, obviously improves the bearing capability, and can be combined with other reinforcing types.
Owner:TSINGHUA UNIV

Method for hoisting full-width total section of thin-walled structure

InactiveCN110510506ASolve the disadvantages of hoisting methodEven by forceLoad-engaging elementsStructural deformationStress conditions
The invention relates to a method for hoisting a full-width total section of a thin-walled structure. The method includes the following steps of firstly, calculating the weight and center of gravity of the full-width total section of the thin-walled structure, determining the number of hoisting points, and selecting the positions of the hoisting points; secondly, analyzing and calculating the stress conditions of each hoisting point, selecting slings and locks which meet the hoisting specifications, calculating the hoisting girth length of the full-width section of the thin-walled structure and the hoisting height of a crane, and calculating the required sling length; thirdly, manufacturing and installing a corner protector and a tongue and groove protector according to the line-type chamfered form of the full-width section of the thin-walled structure; and fourthly, making the slings selected in second step penetrate through the corner protector and the tongue and groove protector onthe two sides of the full-width total section of the thin-walled structure at the same time, and hanging the slings on hoisting rows or hoisting hooks of a hoisting device for hoisting operations. Byadopting the method, the distribution area of stress points of the hoisting points is large, the structural deformation caused by the hoisting of the total section is effectively controlled, and a large number of structural strengthening devices are omitted.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Recoil press

InactiveCN102958823AImprove anti-corrosion performanceImproved low temperature performanceSpringsShock absorbersGas cylinderEngineering
The invention relates to a recoil press of a crane in the form of a gas cylinder, wherein, a piston rod engaged in a cylinder chamber of the gas cylinder is configured as a piston accumulator, and wherein the gas in the bottom space of the cylinder is communicated with the gas in the piston rod and the annular space surrounding the piston rod. A sealing arrangement in a rod guide of the cylinder seals the piston rod off from the cylinder. The sealing arrangement comprises a lubricant groove extending around the rod guide via which groove the exterior of the piston rod is lubricated. The lubricant is under the gas pressure prevailing in the cylinder with a pressure transmitting element being interposed.
Owner:MONTANHYDRAULIK

Device for inhibiting vibration of space large annular trusswork and control method

The invention discloses a device for inhibiting vibration of a space large annular trusswork, and belongs to the technical field of spacecraft structures. The device comprises a spacecraft, an unfolding arm is connected with the spacecraft, and an executing mechanism is arranged on the unfolding arm; the annular trusswork is connected with the tail end of the unfolding arm, and a cable net reflecting face is arranged on the annular trusswork; the executing mechanism is also connected with one end of the annular trusswork through a pull cord; a control module is also connected with the executing mechanism. The invention further discloses a control method thereof. The control method is based on a tension force feedback principle, a motor takes induction currents as feedback, wherein the induction currents are generated when a motor rotor rotates and cuts magnetic lines, no other sensor data is needed to serve as feedback, no known system models are needed, and the device is easy to control, can still effectively inhibit vibration of the space large annular trusswork when the state of the system changes, and has good robustness.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Bionics-based pneumatic resistance reducing device and bridge

The invention discloses a bionics-based pneumatic resistance reducing device. The device comprises a grid structure and blades attached to the grid structure, the grid structure and the blades are allmade from flexible materials, each grid of the grid structure is internally and movably provided with a corresponding blade, and the sizes of the blades are adapted to the sizes of the grids. Each blade can separately deform and vibrate, the pneumatic shape can be adaptively changed under the action of different winds to reduce the wind resistance under various conditions, and the blades are allowed to vibrate, thereby being capable of reducing energy consumption while reducing resistance, and further reducing wind-induced vibration of bridge structures.
Owner:TONGJI UNIV

Structure for suppressing cavity resonance in automobile tire based on phononic crystal noise reduction theory

The invention discloses a structure for suppressing cavity resonance in automobile tire based on phononic crystal noise reduction theory, which is characterized in that the structure comprises a longrectangular rubber or plastic base band, and rubber cylinders are arranged on one side of the base band in a rectangular array. Wherein the rubber base belt and the rubber cylinder are manufactured asa whole. At that time of installation, the tire is fixedly connecte in the deep groove of the wheel rim, restrained by a restraining belt, the tire is load into one side of the tire lip, the restraining belt is cut out, and then the tire lip is loaded into the other side of the tire lip; To remove the tire, remove one lip, restrain the rubber cylinder with the restraining strap, and then remove the other lip. Compared with adding common sound-absorbing material, it is not easy to damage in tire loading and unloading. By optimizing the parameters and layout, the additional weight can be reduced, and the cavity resonance noise of tire in the range of 200-300Hz can be effectively suppressed. In order to ensure the dynamic balance, the layout of the rubber cylinder on the base belt should satisfy the symmetry of the structure and ensure that the rubber cylinder is symmetrical about the center of the wheel center after it is installed in the deep groove of the wheel rim.
Owner:BEIHANG UNIV

A magnetic fluid coupling passive suspension axial flow pump

The invention discloses a magnetic fluid coupling type passive suspension axial-flow blood pump which comprises a pump casing and a rotor, wherein the cavity in the pump casing gradually widens firstly and then gradually narrows in the direction from the pump inlet to the pump outlet; suspension permanent magnetic rings are arranged inside the upper half section of the pump casing; electromagnetic coils are arranged inside the lower half section of the pump casing; the rotor is arranged inside the cavity; suspension permanent magnetic rings are arranged inside the upper half section of the rotor, driving permanent magnetic rings are arranged inside the lower half section of the rotor, and a drainage groove is formed in the outer surface of the rotor; flow guiding supporting rings are arranged at the pump inlet and the pump outlet, and when the pump casing is filled with blood, the fixed flow guiding supporting rings support the rotating rotor. According to the invention, the magnetic fluid coupling type passive suspension bearing structure with the combined action of permanent magnetic suspension and hydraulic suspension is adopted, so that factors such as abrasion and frictional heating for inducing thrombus are avoided; the passive suspension manner is adopted, so that the energy consumption is less than that of an active control suspension bearing; therefore, the additional weight of the blood pump is effectively reduced, the development of the blood pump towards light-weight type and mini-type is facilitated.
Owner:UNIV OF JINAN

Air guide device and manufacturing and assembling method thereof

The invention discloses an air guide device and a manufacturing and assembling method of the air guide device. The air guide device comprises at least one air guide section, each air guide section comprises an air guide section body composed of a top plate and a bottom plate, reinforcement ribs are arranged inside the air guide section bodies, and each of the top plates, the bottom plates and the reinforcement ribs is made of a fiber reinforcement composite material inner layer and a fiber reinforcement composite material outer layer. The manufacturing and assembling method includes the steps that (1), the fiber reinforcement composite material inner layers, the fiber reinforcement composite material outer layers and light sandwich layers are manufactured and used for forming the top plate, the bottom plate and the reinforcement rib, so that one air guide section is formed; (2), the preset number of air guide sections are manufactured and connected with a main beam of a bridge through bolts, and the air guide sections are connected through bolts. The air guide device has the advantages of being light, high in strength and corrosion performance and easy to connect with the main beam, and the manufacturing and assembling method is simple and convenient to implement.
Owner:长沙绘通工程咨询有限公司
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