39results about How to "Reduce mutual contact" patented technology

The invention relates to a calibration system and method of an industrial robot workpiece coordinate system. The calibration system comprises an industrial robot, a robot controller, a robot ending tool, a sensor installation intermediate structural member, a calibration sensor assembly, a workpiece mounting table and a workpiece arranged on the workpiece mounting table. The calibration sensor assembly measures points on the workpiece, points on the characteristic curved boundary are detected, and a signal is output and then input into the robot controller; a trigger path is interrupted when the robot controller receives the signal, middle position data Fflange and displacement data Msensor in the height direction of a calibration sensor are recorded, and 6D data of the workpiece coordinate system is worked out by combining sensor mounting position data Fsensor. According to the calibration system and method of the industrial robot workpiece coordinate system, the calibration process is simple, the situation that measurement is not accurate due to the fact that a calibration plane is oblique can be avoided, the calibration precision is high, the calibration system can be applied tovarious workpiece occasions, the application cost of the calibration system is low, and achieving of large-range application and promotion is facilitated.

The invention discloses a method for preparing high frequency soft magnetic iron-silicon-aluminum magnetic powder cores, and belongs to the technical field of energy storage materials. Firstly, an iron-silicon-aluminum alloy is crushed by a machine and graded with powder of different particle sizes to prepare graded alloy powder, the graded alloy powder, absolute ethanol, polyvinylpyrrolidone anddopamine are subjected to ultrasound dispersion and reaction under the nitrogen protection to prepare graded alloy powder syrup, then a diluent of ethyl orthosilicate is dropwise added into the gradedgold powder syrup, a catalyst is added after dropwise adding, after stirring and mixing, an ethanol solution is added, a stirring reaction continues, and filtering, washing and drying are then conducted to obtain modified ally powder; the modified alloy powder and an insulating binder are mixed and dried, a release agent is added, injection compression molding is conducted, demolding is conducted, after stabilization treatment and heat treatment, cooling is conducted, and then the high-frequency soft magnetic iron-silicon-aluminum magnetic powder cores are obtained.

The invention discloses a ferrofluid-lubricated sliding bearing with an annular groove. The ferrofluid-lubricated sliding bearing comprises a sliding bearing body, wherein the wall of the sliding bearing body is provided with ferrofluid holes, the external circle of the sliding bearing body is provided with at least one annular groove, the annular groove is internally provided with an annular magnet, an elastic check ring is axially arranged between the annular magnet and the sliding bearing body, at least one annular square groove is formed along the radial direction of an inner hole of the sliding bearing body, and the axes of the ferrofluid holes are set along the radial direction of the sliding bearing body. According to the ferrofluid-lubricated sliding bearing, the cooling of the sliding bearing body is realized, the heat dissipation speed of a lubricant is accelerated, the heat conduction area of the lubricant is enlarged, the temperature of the lubricant is lowered, the use reliability of the sliding bearing body is improved, and the service life of the sliding bearing is prolonged.

The present invention discloses a modified calcium-based absorbent for absorbing CO2, and a preparation method thereof, wherein the modified calcium-based absorbent comprises limestone and a nanometer fiber material adsorbed on the surface of the limestone, the nanometer fiber material accounts for 1-20% of the weight of the modified calcium-based absorbent, and the nanometer fiber material adsorbed on the limestone surface is adopted as the skeleton, such that the mutual contact between the limestone particles can be effectively reduced, and the sintering and the fusion of the limestone particles during the circulation capturing of CO2 so as to substantially improve the anti-sintering ability of the calcium-based absorbent and substantially improve the carbonation rate. According to the present invention, the preparation method comprises: dissolving limestone and a nanometer fiber material into an organic solvent according to a certain matching ratio, completely dispersing, placing the mixed liquid into an oven, and drying to prepare the calcium-based absorbent; and the whole preparation process is only the simple physical mixing and drying, and the preparation method is simple and has the low cost.

The invention relates to light silicon dioxide aerogel with ultrahigh transparency and ultralow haze as well as a preparation method and application of the light silicon dioxide aerogel. The method comprises the steps of preparing a microreactor; preparing ultra-small silica sol in the microreactor by adjusting the flow velocity of a silicon source precursor, fluorocarbon oil and a catalyst phase and the pipeline reaction temperature; quickly stirring a mixture containing silica sol liquid drops and an oil dispersion phase, standing for layering, quickly freezing, and separating out a silica sol phase; and adding a gel accelerator into the silica sol to obtain wet gel, and carrying out aging, solvent replacement and supercritical drying to obtain the light silica aerogel with ultrahigh transparency and ultralow haze. The nano-particle size of the prepared material is adjustable in a range of 5-10 nm, the highest light transmittance can reach 94.2%, the lowest haze can reach 4.7%, and the light silicon dioxide aerogel shows ultrahigh transparent quality and is widely applied to the fields of transparent heat insulation building glass, solar heat collection systems, Cherenkov detectors, deep space high-speed particle capture and the like.

Having a current collector having a concave portion and a convex portion at least on one side, and a columnar body formed on the convex portion of the current collector, the columnar body contains an active material for inserting and extracting lithium ions bonding at least with oxygen, and the oxygen content ratio of the active material of the columnar body becomes smaller as going away from the interface of the current collector.

The invention discloses a wafer spray cleaning method, which is to fix a plurality of wafers to be cleaned on a chuck in turn and fix the chuck on a transmission device of a spray cleaning platform. The method comprises the following steps: opening a quick water discharge tank to discharge the residual liquid in the quick water discharge tank completely; starting the transmission device and a timer set in a preset time period at the same time; when the timer runs the preset time period, opening a spray nozzle positioned above the wafers, so that spray cleaning chemical liquid drops are sprayed from the spray nozzle onto the surface of the wafers along an oblique direct when the transmission device drives the chuck and the wafers fixed on the chuck to move up and down; and after cleaning is finished, closing the spray nozzle and the quick water discharge tank and stopping the transmission device. According to the technical scheme of the invention, the mutual contact phenomena between adjacent wafers are reduced, and 50 or more wafers can be cleaned in one batch while in the prior art only 25 wafers can be cleaned in one batch.

The invention discloses a device and a method for carrying out chemical energy storage / release by utilizing carbide slag. The device comprises a circulating fluidized bed reactor, a steam particle separator, a water pump, an electric heater and an atomizing nozzle, wherein an electric heating plate and a heat exchange tube are arranged in the circulating fluidized bed reactor, a gas distribution plate is arranged at the bottom of the circulating fluidized bed reactor, and a fluidization gas inlet of the circulating fluidized bed reactor is formed in the bottom of the circulating fluidized bed reactor; a circulating solid inlet and a feeding hole are respectively formed in the side wall of the bottom of the circulating fluidized bed reactor; the feeding hole is used for conveying carbide slag powder; an outlet of the water pump is sequentially connected with the atomizing nozzle, the electric heater and the fluidized gas inlet, a gas outlet of the circulating fluidized bed reactor is connected with an inlet of the steam particle separator, and a solid phase outlet of the steam particle separator is connected with a circulating solid inlet of the circulating fluidized bed reactor. The two gaseous substances can be prevented from being adopted in the energy storage / release process, the gas port can be prevented from being blocked, and the technological process is simplified.

The invention provides relates to connection technologies for carbon nanometer tube macroscopic films or fibers and metal in the technical field of nanometer materials, in particular to a method for connecting a carbon nanometer tube macroscopic material with metal. The method sequentially comprises the following steps that the portion, needing to be connected, of line-shaped or band-shaped metallic copper or metallic aluminum or metallic tin is ground, polished, washed with ethyl alcohol and dried; carbon nanometer tube macroscopic films or fibers are well prepared, 0.01 mL to 10 mL of elargol is cured at a room temperature, after it is guaranteed that the condition that the curing electric resistivity is kept between 0.002 Ohm / cm to 0.01 Ohm / cm is met, the portion, needing to be connected, of the carbon nanometer tube macroscopic material is coated with the elargol through a needle point of an injector, the metallic portion needing to be connected with the carbon nanometer tube macroscopic material is placed on the surface coated with the elargol, the metal is tightly pressed through a steel ruler, and then the metal can be completely connected with the carbon nanometer tube macroscopic films or fibers. By the adoption of the method for connecting the carbon nanometer tube macroscopic material with the metal, the obtained contact resistance between carbon nanometer tube macroscopic material and the metal is reduced to within 10 Ohms, the technology is simple, and cost is low.

The invention discloses a polyaniline-based desulfurization and denitrification absorbent and a preparation method thereof, wherein the matrix absorbent is polyaniline, and the substrate is wrapped with a two-dimensional sheet material, such as vermiculite, graphene, or nano-scale porous Materials such as diatomite, two-dimensional sheet material or nanoscale porous material account for 10%-50% by weight of the composite absorbent. The two-dimensional sheet material or nano-scale porous material wrapped by polyaniline can act as a skeleton to effectively reduce the mutual contact between polyaniline particles and increase its specific surface area, thereby greatly improving the absorption capacity of polyaniline-based composite materials. The absorption capacity greatly improves the removal efficiency. Among them, the preparation method includes dissolving aniline, ammonium persulfate, two-dimensional sheet material, and nano-scale porous material into an acidic solvent according to the ratio of synthetic polyaniline. The polyaniline-based composite material absorbent is obtained by drying in an oven. The whole preparation process is simply mixing and drying, and the preparation method is simple and the cost is low.

The invention provides a breeding method of a new ganoderma lucidum variety with high triterpene content. The breeding method comprises the following steps of S1, selecting wild ganoderma lucidum as aparent, carrying out isolated culture by a ganoderma lucidum tissue isolation method to obtain pure mycelia, and carrying out cultivation tests and screening to obtain a ganoderma lucidum variety with relatively high sporulation quantity; S2, preparing the obtained ganoderma spores into a spore suspension liquid, and equally dividing the spore suspension liquid into two parts; and S3, mutagenizing one part of the spore suspension liquid through an ultraviolet lamp. The breeding method of the new ganoderma lucidum variety with high triterpene content provided by the invention comprises the following steps of selecting wild ganoderma lucidum as the parent, respectively carrying out ultraviolet mutagenesis and low-energy nitrogen ion mutagenesis on the spore suspension liquid, respectively culturing, and hybridizing the two stable mutagenic ganoderma lucidum to generate the new ganoderma lucidum variety; continuous culture of at least 20 generations is carried out, and the stable ganoderma lucidum sub body is generated to be used as the parent; and the method has the advantages of the two mutagenic ganoderma lucidum are included, and the content of beneficial substances such as ganoderma lucidum triterpenoids and the like is increased in the ganoderma lucidum.

Disclosed is an operating instrument bag. The operating instrument bag effectively solves the problem that areas of an existing operating instrument bag cannot be isolated from one another to result in contamination and infection. The operating instrument bag comprises two hinged bag bodies which are covered by a cover plate; the insides of the bag bodies are provided with plurality of storage grooves, and the cover plate is provided with a plurality of sealing plates corresponding in position to the storage grooves; the two bag bodies are connected through a connecting plate, a rotating shaftpenetrating through the connecting plate is fixed inside the bag bodies and provided with first fixing pins inside the connecting plate, and the connecting plate is provided with openings corresponding to the first fixing pins. The operating instrument bag has the advantages of being skillful in structure and convenient to use; when the operating instrument bag is opened, a user can close the bagbodies only by resetting all the sealing plates and the cover plate, so that operating instruments inside the closed bag bodies can be isolated from one another, and mutual contact between the operating instruments can be reduced.

The invention discloses a voltage test box. The voltage test box includes alligator clips and a test box; the test box includes a box body; the outer side of the box body is provided with multiple plug-in ports, and the internal of the box body is provided with a voltage collection module and a power supply module; each alligator clip includes a clamping body and a fixing end; the fixing end of each alligator clip is fixedly connected to the test box through the corresponding plug-in port; the fixing end of each alligator clip in the corresponding plug-in port of the voltage test box is connected to the voltage collection module through leads; and the power supply module adopts a rechargeable battery. An alligator clip is also disclosed. Test functions on voltage by adopting the alligatorclips can be realized though the voltage test box; the mutual touching between the alligator clips can be decreased; and short out caused by the mutual touching of the alligator clips can be reduced as well.

Having a current collector having a concave portion and a convex portion at least on one side, and a columnar body formed on the convex portion of the current collector, the columnar body contains an active material for inserting and extracting lithium ions bonding at least with oxygen, and the oxygen content ratio of the active material of the columnar body becomes smaller as going away from the interface of the current collector.

Embodiments of the present disclosure disclose a capacitor structure and a method for fabricating the same, a semiconductor structure and a method for fabricating the same, wherein the capacitor structure includes a substrate and a first electrode, a first dielectric layer and a first electrode disposed on the substrate. Two electrodes, wherein the first electrode includes at least two sub-electrodes that are continuously arranged and connected in sequence in a direction perpendicular to the substrate, and at least one of the at least two sub-electrodes is in the The orthographic projection on the substrate covers the orthographic projection of the other sub-electrode on the substrate; the first dielectric layer is arranged on at least part of the outer surface of the first electrode; the second electrode is arranged on the At least part of the outer surface of the first dielectric layer, and the second electrode is insulated from the first electrode.

Shaving apparatus having at least one cutting unit with an external cutting member and a rotatable internal cutting member each the external and internal cutting members having cooperating cutting edges forming bearing surfaces of a first bearing, and a second bearing with bearing surfaces. To minimize the friction between the cutting edges, a support device having visco-elastic properties is provided between the two bearings. During operation, the distance between the bearing surfaces of the first bearing adjusts to the distance between the bearing surfaces of the second bearing. During cutting of hairs, the support device behaves as a stiff element whereas during periods in which no hairs are cut, the support device behaves relatively soft so that the cutting gaps between the cutting edges are closed.

The invention belongs to the field of medicinal preparations, and particularly relates to a preparing method for a compound preparation containing rifampicin.The preparing method includes the steps that rifampicin, other active components and a hot melting film-forming material are prepared into solid coated particles, the solid coated particles are further prepared in various dosage forms, and for example, the solid coated particles are loaded into capsules to prepare a capsule preparation or tabletted and coated to prepare film-coated tablets.According to the purpose, all the active components in the prescription are isolated, it is avoided that medicine makes close contact in a preparation environment to be degraded, and stability of the compound rifampicin preparation is ensured.The preparing method is simple and stable in process and high in reproducibility, polymers generated by rifampicin and other active components like isoniazide are greatly reduced, and the product curative effect is ensured; it is indicated by analyzing test results of preparation stability that the preparation is stable in quality.

The invention belongs to the technical field of agriculture, and particularly relates to an anti-deliquescence and instant plant growth regulator microcapsule as well as preparation and application thereof. The microcapsule is formed based on a porous structure, firstly, porous structure particles are constructed, a plant growth regulator is attached to the surfaces and the interiors of the porous structure particles, and finally, a protective layer is sprayed. According to the microcapsule provided by the invention, most of plant growth regulator byproducts are adsorbed in the porous structure, so that the mutual contact between the byproducts can be reduced, the moisture absorption problem can be well solved, and the placement time at room temperature is obviously prolonged; and meanwhile, the protective layer has a waterproof effect, but contains part of components which can be quickly dissolved when meeting water, so that the microcapsule granule is moisture-proof and also can be quickly dissolved. The application bottlenecks of easy deliquescence, instability, poor fluidity and the like of the existing plant growth regulator are solved.

The invention provides an image processing method and device, a storage medium and equipment. The image processing method comprises the steps of obtaining an image of a target space; performing designstyle identification on the image of the target space to obtain a gain value of a design style; obtaining a design style additional value of the target space according to the gain value of the designstyle and the basic parameter value of the target space; performing entity object identification on the image of the target space to obtain an attribute value of an entity object in the target space;obtaining an additional value of the entity object in the target space according to the attribute value of the entity object in the target space; obtaining an interior additional value of the targetspace according to the design style additional value of the target space and the additional value of the entity object in the target space; and adjusting the parameter value of the target space according to the interior additional value of the target space.

The invention relates to the technical field of chemical engineering, in particular to a partitioned spraying desulfurizing tower and a desulfurizing device.The partitioned spraying desulfurizing tower comprises a tank body, and a first air inlet pipe is fixedly connected to the bottom of the tank body; the first gas inlet pipe is communicated with external flue gas through a gas channel; the layering assembly is positioned in the tank body and is used for layering flue gas entering the tank body; the spraying assembly is positioned in the tank body; the flue gas desulfurization assembly is used for desulfurizing flue gas in each layer after the layering assembly; the gas outlet pipe penetrates through the top of the tank; through cooperation of the spraying assembly and the layering assembly, the volume of the spraying section in the tank body can be flexibly adjusted through movement of the layering assembly, and the problem that the space size of each subarea spraying area cannot be flexibly adjusted according to the content of sulfur in waste gas through fixed subarea spraying is solved; further, the residence time of the flue gas in different spraying areas is adjusted, so that the optimal spraying desulfurization time proportion and the optimal desulfurization agent loss proportion are achieved, and the use effect of the desulfurization agent and the desulfurization efficiency of the desulfurization tower are improved.

The invention provides a rapid bobbin replacing device, and further provides a long spindle with a sheath suitable for high-performance fibre weaving. The long spindle with the sheath in the inventioncomprises a spindle part and the rapid bobbin replacing device; the rapid bobbin replacing device comprises a bracket part and a sheath part; the spindle part is fixedly connected into a thin-wall arc column at the lower end of the bracket part; the sheath part is arranged at the upper end of the bracket part; lug bosses at two sides of a sheath base compress a spring in the deep groove at the upper end of a bracket; up or down brackets are symmetrical to clamping buckles at the lower parts of double lugs, so that the bracket part and the sheath part are connected or separated; a yarn is leaded out from a bobbin; after winding outside several yarn storage tubes for many circles, the yarn passes through two yarn guide wheels of the bracket part, and penetrates a yarn through hole at the upper part of the bracket from outside to inside; then, the yarn is leaded out to a weaving ring from a yarn outlet through a large porcelain eye at the lower end of the sheath part and a small porcelain eye at the upper end of the sheath part; the sheath is a carbon fibre composite material; and the yarn storage tubes are smooth metal tubes capable of freely rotating. The long spindle with the sheath in the invention is suitable for high-performance fibre weaving; furthermore, the bobbin is simple and convenient to replace; and the yarn loading capacity is high.

The invention discloses a modified solid amine adsorbent for treating CO2-containing industrial waste gas and a preparation method thereof, and the preparation method comprises the following steps: S1, dissolving a porous carrier and nanofibers in an excessive amount of a first organic solvent, and uniformly stirring to obtain a mixed solution; s2, drying the mixed solution in a drying oven at 70-100 DEG C to obtain a modified porous material; and S3, dissolving the modified porous material and polyethyleneimine in an excessive amount of a second organic solvent, continuously stirring at 50-65 DEG C, and carrying out evaporation and vacuum drying to obtain the modified solid amine adsorbent. The crushing abrasion phenomenon of the solid amine adsorbent is reduced, and long-term continuous stable operation is realized.

The invention discloses a method for connecting a carbon nanotube macroscopic material with a metal, and relates to a connection process between a carbon nanotube macroscopic film or a fiber and a metal in the technical field of nanomaterials. The steps include the following steps in turn: polishing the wire-like or strip-shaped metal copper, aluminum or tin to be connected, cleaning with ethanol and drying; preparing a carbon nanotube macroscopic film or carbon nanotube macroscopic fiber, curing silver glue at room temperature 0.01 ‑10 mL, after ensuring that the solid resistivity remains at 0.002‑0.01 Ω / cm, apply it to the carbon nanotube macroscopic material part to be connected through the needle tip of the syringe, and place the metal part to be connected on the coated silver glue The metal can be completely connected with the carbon nanotube macroscopic film or fiber by pressing the metal tightly on the surface with a steel ruler. According to the invention, the contact resistance between the carbon nanotube macro material and the metal is reduced to less than 10 ohms, and the process is simple and the cost is low.

The invention provides a surgical instrument storage bag which effectively solves the problems that surgical instruments in an existing surgical instrument storage bag are disordered and make contactwith one another and accordingly normal use is affected. The storage bag comprises an upper bag body and a lower bag body, wherein the upper bag body and the lower bag body are hinged to each other, aplurality of containing grooves are formed in the upper bag body and the lower bag body, and sealing plates are arranged above the containing grooves; a limiting device is arranged between the upperbag body and the lower bag body. The storage bag has the advantages that the storage bag is ingenious in structure and convenient to use, after the storage bag is opened, the bag bodies can be closedonly after all the sealing plates and cover plates are reset, so that the surgical instruments in the closed bag bodies are isolated, and mutual contact between the surgical instruments is reduced.

The invention discloses a method for preparing a high-frequency soft magnet silicon-aluminum magnetic powder core, belonging to the technical field of energy storage materials. In the present invention, firstly, mechanically pulverize the Fe-Si-Al alloy, then classify, and use powders of different particle sizes to gradate to obtain graded gold powder, then ultrasonically disperse the graded gold powder with absolute ethanol, polyvinylpyrrolidone and dopamine, React under protected state to prepare graded gold powder slurry, then add tetraethyl orthosilicate diluent dropwise to graded gold powder slurry, after the dropwise addition is complete, add catalyst, stir and mix before adding ethanol solution, continue to stir and react, and then filter, wash and dry to obtain modified alloy powder; then mix and dry the modified alloy powder and insulating binder, add a release agent, injection molding, and demoulding. Afterwards, it undergoes stabilization treatment, heat treatment, and cooling to obtain a high-frequency soft magnet silicon-aluminum magnetic powder core.

The invention provides a compound tablet of lamivudine, zidovudine and efavirenz. The compound tablet is prepared from lamivudine, zidovudine, efavirenz and pharmaceutically acceptable auxiliary materials. Patients take the compound tablets, so that drug resistance of viruses caused by single medication is reduced, and the situation that the patients miss to take a certain medicine is avoided. The preparation method of the compound tablet comprises the following steps: respectively preparing lamivudine coated pellets, zidovudine coated pellets and efavirenz pellets, mixing according to a ratio, and tabletting. The lamivudine, zidovudine and efavirenz compound tablet prepared by the method can avoid mutual contact of the three main drug components, reduce mutual influence and degradation of drugs, improve stability, improve the plasticity and tabletting formability of pellets and improve the dissolution rate.

The invention discloses a three-dimensional composite building structure in front of a railway station. The three-dimensional composite building structure comprises a building door body (1), commercial complexes (2) are arranged on the left side and the right side of the building door body (1), the railway station (3) and a station front square (4) are arranged on the front side and the rear side of the building door body (1) respectively, and a ground vestibule (5) of an arch structure is arranged in the middle of the building door body (1). The two ends of the ground vestibule (5) are connected with the railway station (3) and the station front square (4) respectively, a first station entering streamline is arranged in the building door body (1), and the outside of the first station entering streamline is connected with a commercial complex (2) and the railway station (3) respectively. According to the three-dimensional composite building structure in front of the railway station, the utilization rate of the space in front of the railway station can be effectively improved, cross gathering among different passenger flows is reduced, and the passing time between each surrounding building and the railway station is shortened.

The invention discloses a driving shaft supporting bearing automobile accessory which comprises a supporting bearing body, a shell and a bearing. The shell is connected to the periphery of the supporting bearing body in an embedded mode, and the inner wall of the inner side of the shell is connected with the outer wall of the periphery of the supporting bearing body. The bearing is connected to the middle of the front face of the shell in an embedded mode, and the outer wall of the periphery of the bearing is connected with the inner wall of the interior of the shell. Anti-skid walls are fixedly connected to the two sides of the shell, the outer walls of the two sides of the anti-skid walls are connected with the outer walls of the two sides of the shell, and the anti-skid walls can prevent the supporting bearing from slipping, and embody the anti-skid performance of the supporting bearing body. A shaft cover embodies the dustproof performance of the supporting bearing body. A protection ring embodies the practicability and the protectiveness of the supporting bearing body. A bearing clamping groove embodies the replaceability of the supporting bearing body. The bearing improves the practicability of the supporting bearing body, and the driving shaft supporting bearing automobile accessory has wide development prospects in the future.

The invention provides a rapid bobbin replacing device, and further provides a long spindle with a sheath suitable for high-performance fibre weaving. The long spindle with the sheath in the inventioncomprises a spindle part and the rapid bobbin replacing device; the rapid bobbin replacing device comprises a bracket part and a sheath part; the spindle part is fixedly connected into a thin-wall arc column at the lower end of the bracket part; the sheath part is arranged at the upper end of the bracket part; lug bosses at two sides of a sheath base compress a spring in the deep groove at the upper end of a bracket; up or down brackets are symmetrical to clamping buckles at the lower parts of double lugs, so that the bracket part and the sheath part are connected or separated; a yarn is leaded out from a bobbin; after winding outside several yarn storage tubes for many circles, the yarn passes through two yarn guide wheels of the bracket part, and penetrates a yarn through hole at the upper part of the bracket from outside to inside; then, the yarn is leaded out to a weaving ring from a yarn outlet through a large porcelain eye at the lower end of the sheath part and a small porcelain eye at the upper end of the sheath part; the sheath is a carbon fibre composite material; and the yarn storage tubes are smooth metal tubes capable of freely rotating. The long spindle with the sheath in the invention is suitable for high-performance fibre weaving; furthermore, the bobbin is simple and convenient to replace; and the yarn loading capacity is high.