53results about How to "Oscillate evenly" patented technology

A microwave assisted magnetic head includes a main magnetic pole; a trailing shield; and a spin torque oscillator provided between the main magnetic pole and the trailing shield. The spin torque oscillator has a first end surface configuring a part of an air bearing surface, a second end surface facing the main magnetic pole, and a third end surface facing the first end surface, the first angle θ1 made by the first end surface and the second end surface is smaller than the second angle θ2 formed by the second end surface and the third end surface, and the second angle θ2 is 80 to 100 degrees.

The present invention relates to one kind of solid solution cordierite series ceramic powder with infrared radiation and bacteriostasis functions and its preparation process. The ceramic powder has the main components of Al2O3, SiO2, MgO and ZnO, which are prepared into white solid solution cordierite series ceramic powder through ceramic making process. The ceramic powder has normal whole waveband radiance of 0.87-0.90, 8-25 micron waveband radiance of 0.90-0.94, 8-14 micron waveband radiance of 0.88-0.94 and 14-25 micron waveband radiance of 0.91-0.94. The bacteriostasis function test shows that the ceramic powder has obvious inhibiting effect on urea sarcin and Staphylococcus aureus, with bacteriostasis rate reaching 84.1-100 %. The present invention has simple process, low cost and wide application range.

A vibration damping device that can prevent interference between a rolling mass and a cover resulting from deformation of the cover caused by pressure rise, and that can suppress noises is provided. The torsional vibration damping device comprises: a rotary member that is arranged in a torque converter; a rolling mass that is oscillated relatively to the rotary member by torque pulse; a bore that is formed on an outer circumferential portion of the rotary member in such a manner as to penetrates through the rotary member in a direction parallel to a rotational center axis; a cover that covers the rolling mass and the bore liquid-tightly to protect from oil in the torque converter; and a deformation-preventing member that prevents a deformation of the cover in a direction toward the rolling mass.

The present invention relates to a torsional vibration damping device in which a contact site with an inertial mass can be lubricated effectively while reducing resistance of the inertial mass to oscillate. The vibration damping device includes a rotary member that is rotated by a torque, and an inertial mass that is oscillated by torque pulses. The inertial mass is held in a chamber formed on the rotary member liquid-tightly together with lubrication oil while being allowed to be oscillated by torque pulses in the rotational direction of the rotary member. An amount of the lubrication oil is adjusted in a manner such that the inertial mass will not be brought into contact with an oil film of the lubrication oil centrifugally adhering to a radially outer section of an inner face of the chamber.

The invention relates to a screening and collecting device, in particular to an efficient soil screening and collecting device for potted plant planting, and aims at achieving the technical purpose of providing an efficient soil screening and collecting device for potted plant planting. In order to achieve the technical purpose, the efficient soil screening and collecting device for potted plant planting comprises a bottom plate and the like; supports are arranged on the left side and the right side of the top of the bottom plate respectively, a collecting tank is arranged in the middle of the top of the bottom plate, a swinging device is arranged between the left-side support and the right-side support, the bottom of the swinging device is located over the collecting tank, and a screening device is arranged in the swinging device and penetrates through the outer side of the swinging device. According to the efficient soil screening and collecting device for potted plant planting, the effect that soil coarseness and fineness screening can be effectively conducted, coarse soil blocks or stones unbeneficial to plant growth in soil are screened out, and then plant planting and growing are promoted is achieved, and the practicability is good.

The present invention relates to a torsional vibration damping device in which a contact site with an inertial mass can be lubricated effectively while reducing resistance of the inertial mass to oscillate. The vibration damping device includes a rotary member that is rotated by a torque, and an inertial mass that is oscillated by torque pulses. The inertial mass is held in a chamber formed on the rotary member liquid-tightly together with lubrication oil while being allowed to be oscillated by torque pulses in the rotational direction of the rotary member. An amount of the lubrication oil is adjusted in a manner such that the inertial mass will not be brought into contact with an oil film of the lubrication oil centrifugally adhering to a radially outer section of an inner face of the chamber.

The invention discloses a method of preparing high-purity heparin sodium. The method is characterized in that under a room temperature of 298K, an organic precipitation method is adopted to remove heparin sodium-like impurities dermatan sulfate and chondroitin sulfate in the heparin sodium to prepare high-purity heparin sodium, so that the heparin sodium and similar substances thereof are separated according to solubility difference in different polar solvents. The method is suitable for purifying and separating the sodium-like impurities dermatan sulfate, chondroitin sulfate and the like in the heparin sodium to prepare the high-purity heparin sodium, and has remarkable social and beneficial benefits.

The invention discloses a remediation device for extracting heavy metal in soil. The remediation device comprises a soil sample treatment system. An outlet of the soil sample treatment system is connected with an ultrasonic reinforced extracting system, a mud outlet of the ultrasonic reinforced extracting system is connected with a mud-water separating system, a water outlet of the ultrasonic reinforced extracting system is connected with an extraction liquid treatment recycling system, recovered water of the mud-water separating system is connected to an inlet of the extraction liquid treatment recycling system, and recovered water of the extraction liquid treatment recycling system is connected to a water inlet of the ultrasonic reinforced extracting system. The remediation device can efficiently extract the heavy metal in the soil and can also conveniently recover and utilize an extracting agent, the remediation cost is reduced, and the secondary pollution of the environment is reduced.

A test tube shaking device for medical tests belongs to the field of medical instruments. An exhaust channel is fixed to the top of a first support. A stepping motor is vertically fixed to the top ofa motor base. A heating device is fixed at the top of a second support. A shaking device is installed on a main shaft of the stepping motor. A temperature sensor is installed at the bottom of a fourthsupport. An ultrasonic sensor is fixed to the top of a fifth support. When the ultrasonic sensor detects that a test tube is placed in front of a push plate, an electromagnet contracts to fix the test tube. The step of manually opening the device is omitted, and the efficiency is improved. The temperature of the test tube is detected through the temperature sensor and compared with a set temperature, the heating device or a cooling device is driven to act to keep the test tube at a constant temperature, the shaking device is driven by the stepping motor to rotate back and forth within a certain angle, the process of manually shaking the test tube is replaced, and labor cost is reduced.

The invention provides an oscillation cross section adjustable oscillator. An up-down sliding mechanism comprising a guide slide rail and a guide slide block is adopted between an oscillation support and a fixed mount; and in a process of sliding up and down, the guide rail is free from external force, so that the running abrasion and the sliding friction resistance can be greatly reduced, defects of stress deformation and the like of a guide rod in the prior art can be eliminated, the operation is stable and reliable and the service life is long. A mounting column in a separating funnel positioning device can slide in an adjustment arc chute of an oscillation box along a lower rotary pin shaft, so that the mounting column is in an inclined state; an adjustment range of an angle of inclination is determined by an arc angle of the adjustment arc chute, so that to-be-oscillated bottle body liquid is properly tilted according to requirements of a tester, the surface area of the liquid stored in an actually oscillated bottle is increased, the oscillation uniformity of the to-be-oscillated liquid is improved, and the oscillation homogenization time is also reduced. A motor is controlled by avariable frequency electric actuator to ensure that the oscillation frequency can be changed, and the oscillator has a variable frequency and is efficient, energy-saving and reliable.

The invention provides a preparation method of a lubricating grease containing modified graphene. The preparation method comprises the following steps: mixing a first part of base oil with a high-molecular acid and a low-molecular acid, heating the obtained mixture, adding barium hydroxide, carrying out a saponifying reaction, refining the obtained reaction product, cooling the refined reaction product, adding a premixed second part of base oil and modified graphene, performing stirring until uniformity, and grinding the obtained mixture into grease in order to obtain the lubricating grease containing modified graphene, wherein the modified graphene is prepared by the following steps: co-doping graphene oxide, used as a raw material, with silicon, boron and phosphorus, carrying out reduction treatment to obtain multi-doped graphene, organically modifying the multi-doped graphene with 7-octenyltrichlorosilane, carrying out a polymerization reaction on the obtained intermediate and 2-ethylhexyl acrylate, and finally mixing and reacting the obtained polymerization product with 7,7,8,8-tetracyano-p-xylylenequinone to obtain the modified graphene. The obtained lubricating grease producthas the advantages of good colloid stability, high dropping point and excellent antifriction performance.

The invention relates to a yarn processing device. The device comprises a sizing mechanism, a drying mechanism and a separation mechanism which are sequentially arranged in the yarn moving direction. The sizing mechanism comprises a sizing fluid box; a rotational sizing roller is horizontally arranged in the sizing fluid box; the sizing roller comprises a cylindrical ultrasonic transducer and a cylindrical rubber layer, the cylindrical rubber layer is tightly attached to the ultrasonic transducer, and the ultrasonic transducer is sleeved with the cylindrical rubber layer; a spiral yarn path is arranged on the outer circumferential face of the rubber layer and used for yarn routing; the drying mechanism comprises a cylindrical heat radiation base layer; a drying cavity penetrating in the axial direction of the heat radiation base layer is defined by the heat radiation base layer; a plurality of concave base arc surfaces are densely arranged on the inner wall of the heat radiation base layer; in the drying cavity, two opposite base arc surfaces are arranged in a staggered mode. The yarn processing device can effectively improve the sizing, drying and separating effects, the production efficiency is improved, and the yarn processing quality is ensured.

A torsional vibration damper in which vibration damping performance is ensured by preventing a contact between a rolling mass and a rotary member. A rolling mass includes a trunk penetrating through a bore. A first corner formed in an axial end of the trunk is rounded. A rotary member includes a second corner formed in the bore. an axial length of the first corner of the rolling mass is longer than an axial length of the second corner of the rotary member.

The invention relates to the technical field of concrete processing, and particularly discloses a concrete vibration processing and treating device. A concrete oscillating apparatus comprises a rectangular supporting frame with four supporting rods, the supporting frame is provided with a clamping and fixing unit for clamping and fixing a concrete brick making mould, the four supporting rods at the bottom of the rectangular supporting frame are correspondingly connected with four supporting columns through springs, and a vibration motor is arranged on the supporting frame. According to the concrete vibration processing and treating device, the clamping and fixing unit for clamping and fixing the concrete brick making mould is arranged on the supporting frame with the four supporting rods, and the four supporting rods of the supporting frame are correspondingly connected with the four supporting columns through springs, so that the motor can be started after the concrete brick making mould is fixed onto the supporting frame through the clamping and fixing unit, and the supporting frame can vertically oscillate under the power action of the motor due to the fact that springs are arranged between the four supporting rods of the supporting frame and the four supporting columns; further, concrete materials in a mould can be uniform through the oscillation so as to effectively improve the compactness and quality of concrete bricks.

The invention discloses an agricultural unmanned pesticide sprinkling device with the good stability. The agricultural unmanned pesticide sprinkling device comprises a bracket, an upper partition plate and a lower partition plate are arranged in a pesticide box, and the pesticide box is partitioned into a pesticide inlet cavity, a pesticide storage cavity and a pesticide conveying cavity by the upper partition plate and the lower partition plate; a supporting column is arranged in the middle of the pesticide storage cavity, a plurality of vertical plates are arranged on the outer side of the supporting column, and the pesticide storage cavity is divided into a plurality of small cavity bodies by the vertical plates; the lower end of each small cavity body is provided with a pesticide outlet pipe extending into the pesticide conveying cavity; a plurality of stand plates are arranged in the pesticide conveying cavity, the pesticide storage cavity is divided into a plurality of cavity bodies by the stand plates, and the multiple cavity bodies mutually communicate; a connecting seat is arranged at the upper end of the outer side of the bracket and provided with a connecting rod, a fixing cavity allowing the connecting rod to be inserted is formed in the connecting seat, and a limiting groove is formed in the position, located on the fixing cavity, of the upper side of the connecting rod; and a limiting cavity communicating with the fixing cavity is formed in the connecting seat, and a limiting block is arranged in the limiting groove. The agricultural unmanned pesticide sprinkling device is simple in structure, convenient to use, convenient to maintain, dismount and mount, high in stability and good in practicability.

The invention discloses an intelligent constant temperature and ultrasonic wave promoting desorption integrated coal sample tank and a using method thereof. The coal sample tank comprises a tank bodyand a tank cover, the tank cover is provided with an exhaust pipe, and the exhaust pipe is provided with a gas flow meter and an air exhaust valve. A temperature regulating inner container is arrangedon the inner wall of the tank body, and a thermal insulating layer is further arranged between the temperature regulating inner container and the inner wall of the tank body. A temperature sensor isinstalled in the tank body, and an intelligent temperature control device is installed on the side wall of the tank body. The temperature regulating inner container and the temperature sensor are bothelectrically connected with the intelligent temperature control device. According to the intelligent constant temperature and ultrasonic wave promoting desorption integrated coal sample tank and theusing method thereof, intelligent dynamic regulation and ultrasonic wave desorption promotion of the temperature inside the tank body can be performed for arbitrary downhole temperature, and adsorption gas in a coal sample is evenly oscillated, so that the gas desorption rate in the coal sample is accelerated, the desorption is more complete, and the determination of gas content in underground coal samples is more accurate.

The invention belongs to the technical field of medical and health products, and particularly relates to reusable mask fabric and a preparation method thereof. The preparation method includes the steps: adding polyvinylidene fluoride resin powder, polyurethane powder, nano powder and liquid polyacrylonitrile into a graphene oxide aqueous solution containing 1-butyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imide; uniformly performing oscillating by ultrasonic waves to obtain a paste material, and then pewreforming pushing and pressing, calendering, foaming by microwaves, stretching, sintering and molding, and reducing the processed paste material to obtain the product. A corresponding mask product can be obtained by processing the mask fabric, is not limited by an electret technology any more, realizes interception of bacteria, viruses, dust and the like by controlling the pore diameter of micropores of the film, and can be reused infinitely theoretically. An adhesive is not used for being compounded with other materials, so that the permeation resistance of gas is not increased, and better air permeability is achieved.

A hydraulic valve device, especially an LS current regulating valve, includes a fluid connection arrangement (10). As the respective control device (14) associated with a useful connection (A) comprises a control slide (16) upstream of which a pressure balance (18) is mounted in the fluid direction towards each useful connection (A, B), any system vibrations occurring in the load sensing regulating circuit can be better controlled and the respectively connected hydraulic consumer can be subjected to a constant current regulation.

The invention provides a pharmaceutical preparation for treating liver and gallbladder damp-heat and a preparation method thereof. The preparation method comprises the following steps: mixing potentilla anserine, vervain, lalang grass rhizome, radix puerariae, longhairy antenoron herb, fiveleaf akebia fruit, stir-fried radix paeoniae rubra, indigo naturalis, spora lygodii, herba epimedii, radix bupleuri, bran stir-fried rhizoma atractylodis, lavender, endive and liquorice roots in a specific proportion, and carrying out water decoction extraction and filtration to obtain an extracting solutionand filter residues; then crushing fried coix seeds and purple rice to obtain mixed powder, preparing a fermentation culture medium from the mixed powder and the filter residues, inoculating candidautilis, bacillus subtilis and geotrichum candidum, performing fermentation and centrifugation, taking a supernate to obtain fermentation liquor, and mixing the fermentation liquor with the extractingsolution to obtain mixed powder; adding the mixed powder into a hydroxyethyl cellulose-silkworm silk fibroin mixed solution, and carrying out uniform ultrasonic oscillation and drying to obtain an inclusion compound; and finally, mixing the inclusion compound with auxiliary materials to prepare capsules. Compared with a common traditional Chinese medicine decoction, the capsule is convenient to take and has a good treatment effect on liver and gallbladder damp-heat.

The invention provides a preparation method of silk fibroin lyophilized powder. The preparation method includes that small molecular silk fibroin is formed after silk fibroin is enzymatically hydrolyzed, starch is introduced and enzymatically hydrolyzed, viscous small molecular substance is generated after starch enzymolysis and adhered to the surface of the small molecular silk fibroin, and induction action of alcohol, crosslinking action of polyethylene glycol diglycidyl ether and freeze-thawing action are combined to enable the silk fibroin lyophilized powder to be in nanoscale size, supportive of transdermal absorption and good in cosmetic effect. The silk fibroin lyophilized powder is a lyophilized powder product and is high in activity and convenient to use.

The invention provides a degradable polyurethane biological material as well as a preparation method and application thereof. According to the method, the degradable polyurethane biological material is obtained by performing electrostatic spinning on a first solution and a second solution; a preparation method of the first solution comprises the following steps of adding a lysine monomer and a p-nitrophenyl adipate monomer into N, N-dimethylacetamide, heating and stirring to react, adding nano calamine powder, and continuously reacting to obtain nano particles; adding casein and acrylic acid into water, uniformly stirring and mixing, under the protection of nitrogen, adding potassium persulfate, stirring and reacting, adding the nano particles, and irradiating by electron beams to prepare modified nano particles; and finally, adding polyether glycol, the modified nanoparticles and dibutyltin dilaurate into N, N-dimethylacetamide, and carrying out ultrasonic oscillation uniformly to obtain the degradable polyurethane biological material, wherein the second solution is prepared by adding diisocyanate into the N, N-dimethylacetamide and uniformly stirring and mixing. The biological material prepared by the invention has excellent mechanical property and degradation property and wide application prospect.

A turbo type centrifugal pump is provided in which an angular oscillator is angularly oscillated so that fluid in a radial through hole receives centrifugal force. The angular oscillator is used in combination with a resonance oscillation motor that generates angular oscillation. The resonance oscillation motor is incorporated in the pump so that the pump structure and the drive mechanism are integrated. This reduces the size of the pump. Since the angular oscillation is a reciprocating rotation within an oscillation range less than 360°, a suction pipe can be connected to the radial through hole used in the angular oscillation. This eliminates the necessity for providing a shielding structure.

The invention discloses a multi-layer orbital oscillator and its hanger, aiming to provide a multi-layer orbital oscillator and its hanger with the advantages of high processing efficiency and less time consumption for multi-group biological cultivation process, The main point of the technical solution is that the frame includes several longitudinal beams, a chassis fixed horizontally on the longitudinal beams, and several backing plates arranged parallel to the chassis, and the swinging bed and the frame are connected by a fixing mechanism, which includes fixing The base on the side of the chassis facing away from the backing plate and several positioning shafts set on the base, and several connecting holes are set on the position corresponding to the positioning shafts on the swing bed. This multi-layer orbital oscillator avoids multiple biological cultivation processes. There may be errors, and the oscillation of the rack and the swinging bed is more uniform and stable, which not only reduces the processing time, but also increases the processing efficiency and increases the number of biological cultures per unit time.

The invention provides equipment for uniformly oscillating a chemical reagent, and relates to the field of chemical experiment equipment. The equipment for uniformly oscillating the chemical reagentscomprises a rectangular box frame and a box door, a motor is fixedly mounted at the bottom of the inner side of the rectangular box frame, a fixed box is fixedly mounted at the top of the motor, motorframes are mounted on the two sides of the fixed box, a disc is fixedly mounted on a vertical rod, and a test tube rack is fixedly mounted at the top of the disc; and a transmission type photoelectric sensor is fixedly mounted on the right side of the test tube rack. According to the equipment for uniformly oscillating the chemical reagent, the fixed box and the motor can be fixed through the motor frame, the test tubes of the transparent tubes can rotate through the rotating shaft and rotation so that the chemical reagents in the test tubes can uniformly rotate, and fresh air can enter the rectangular box frame when the rectangular box frame rotates through the ventilating pipe; and the temperature in the box can be better controlled.

A turbo type centrifugal pump is provided in which an angular oscillator is angularly oscillated so that fluid in a radial through hole receives centrifugal force. The angular oscillator is used in combination with a resonance oscillation motor that generates angular oscillation. The resonance oscillation motor is incorporated in the pump so that the pump structure and the drive mechanism are integrated. This reduces the size of the pump. Since the angular oscillation is a reciprocating rotation within an oscillation range less than 360°, a suction pipe can be connected to the radial through hole used in the angular oscillation. This eliminates the necessity for providing a shielding structure.

The invention relates to smashing equipment, in particular to ore smashing equipment for metal smelting. The ore smashing equipment for metal smelting comprises a moving device, a smashing device, a collecting tank, a treatment tank and a left support. The treatment tank and the collecting tank are arranged at the top of a bottom plate, and the treatment tank is located on the left side of the collecting tank. The left support is arranged on the left side of the top of the bottom plate, a right support is arranged on the right side of the top of the bottom plate, and the moving deice is arranged at the top of the left support and the top of the right support. The smashing device is arranged at the bottom of the moving device and located above the treatment tank. The ore smashing equipment for metal smelting has the effects that ore can be smashed more evenly, smashing efficiency is high, and smashed ore can be taken out more conveniently; and the smashing device moves and knock ore to smash the ore at the same time.

The invention discloses a treatment agent for liquefied petroleum gas purification and a preparation method thereof. First, manganese nitrate, antimony nitrate and titanium tetrachloride are used as raw materials to prepare manganese and antimony doped titanium dioxide; then manganese and antimony are mixed with manganese and antimony. Hetero-titanium dioxide is surface-modified with polyethyleneimine to obtain a modified material; then the modified material is reacted with epoxidized cellulose to obtain a composite material; the composite material is then added to the modified bentonite premix, ultrasonically oscillated uniformly, and polymerized Reaction, drying, and that's it. The treating agent can realize one-step purification of liquefied petroleum gas, has simple process and good purification effect.