10178results about How to "Won't break" patented technology

The invention provides a torque limiter, which relates to the field of mechanical transmission and comprises a first transmission body, a second transmission body, a bolt, a spring, a press gasket and a locking adjusting nut. The first transmission body is provided with a gear disc surface A, the gear disc surface A is provided with a gear disc A, and a through hole A is arranged at the circle center of the gear disc A. The second transmission body is provided with a gear disc surface B, the gear disc surface B is provided with a gear disc B meshing with the gear disc A, and a through hole B is arranged at the circle center of the gear disc B. The press gasket is provided with a through hole C, and the bolt penetrates through the through hole A of the first transmission body, the through hole B of the second transmission body, the spring and the through hole C of the press gasket sequentially and presses the spring between the second transmission body and the press gasket by being matched with the nut. The torque limiter in the structure is arranged between an output shaft of a transmission device and a bearing shaft of an external load to serve as a connecting member, therefore, the transmission device is protected from being damaged due to abnormal torque rich caused by the outside affection.

A refractory conveying belt is prepared from the dibasic ethylene propylene rubber, or dibasic ethylene propylene rubber and ternary ethylene propylene rubber through pre-pugging, adding heat conducting agent and anti-ageing agent, pugging, adding reinforcing agent, softening agent and short aramid fibers, pugging, adding cross-linking agent and cross-linking aid, heating, calendering to become sheet, attaching it onto tension-resistant canvas, rolling and sulfurizing.

The invention relates to a chemical method for in-situ large-area controlled synthesis of a perovskite type CH3NH3PBI3 membrane material based on a lead simple-substance membrane. The method comprises: sputtering the lead simple-substance membrane on the surface of a substrate, then horizontally immersing the substrate material possessing the lead simple-substance membrane in an organic solution containing a simple substance iodine and iodinated methylamine, and performing a constant-temperature reaction to prepare a CH3NH3PBI3 membrane material in situ; or putting the substrate possessing the lead simple-substance membrane in a steam atmosphere of a simple substance iodine to perform iodination to generate a lead iodide membrane, then immersing in an organic solution containing iodinated methylamine, and performing a constant-temperature reaction to prepare the CH3NH3PBI3 membrane material in situ. The method is simple in operation, low in energy consumption and low in cost, and has wide industrial application prospect. The obtained CH3NH3PBI3 membrane is high in purity, uniform in membrane-surface crystal and excellent in crystallinity.

The invention belongs to storage and transportation equipment for detonating materials (detonators), in particular to an anti-explosion container. The anti-explosion container includes an upper cover, a cylinder and a fixed bracket. It is characterized in that the cylinder is composed of an outer cylinder and an inner cylinder, wherein the outer cylinder is a cylinder with an open upper end and a closed lower end. The lower part of the inner cylinder is provided with a lower wave breaking plate. , the upper cover is composed of a top cover plate and a cover wall, wherein the lower end of the cover wall is provided with an upper wave dissipation plate, the cover wall and the upper port of the outer cylinder are connected by splines, and the top cover plate is provided with explosion-venting bolts. The invention can not only ensure safety when the detonating equipment and explosives are transported in the same vehicle, but also can seal the harmful gas generated by the explosion in the container in case of an explosion in the container, and discharge the harmful gas after it is transported to a suitable place. In order to avoid polluting the environment and causing casualties and damage to surrounding personnel and facilities. It has the advantages of flexible and convenient opening and closing, large loading capacity, long service life, and good anti-explosion and explosion-proof performance.

The invention discloses a water catalyst sterilizing and detoxifying device and a producing and using method thereof. The device comprises a water catalyst generator and a DC (direct current) power supply, wherein the water catalyst generator comprises an anode electrode and a cathode electrode which are both titanium electrodes; and the anode electrode is coated with a composite material coating. The producing method comprises the following steps of: (I) making electrodes; and (II) making the composite material coating: preparing composite material coating liquid, and brushing, drying and sintering the coating liquid in multiple times. The using method comprises the following steps of: a, placing the cleaned article and the water catalyst generator in the cleaning water; b, connecting the water catalyst generator with the DC power supply; and c, purifying the cleaned article with the water catalyst generator and the cleaning water. According to the invention, the design is reasonable, the producing and using processes are simple, and the purifying effect is good; and moreover, the problems of poor using effect, possible new pollution, easy damage to the nutrient components of thecleaned food and the like of the existing sterilizing and pesticide residue removing methods can be solved.

The invention discloses a maskless method for preparing black silicon by deep reactive ion etching, which comprises the following steps: performing initialization and plasma stability on equipment adopted by the method for preparing the black silicon so as to make plasma perform glow discharge; and controlling technological parameters for preparing the black silicon by deep reactive ion etching, and adopting etching and passivating modes to alternately process a silicon chip, wherein the parameters comprise plasma gas flow, panel etching power, panel passivating power, coil power, and etching and passivating cycle and temperature. The maskless method directly performs plasma processing on the surface of the silicon chip, and can generate large-range high-intensity nanostructures on the surface of the silicon chip in case of no nano mask by adjusting and selecting proper etching technological parameters. Meanwhile, the method for preparing the black silicon has high efficiency and low cost, and can be integrated with other micro-fabrication technology.

A power protection apparatus including: a switch unit (4) connected in series in a power supply line from a power source (2) to a DC regulator (3); a first short-circuit detector (5) for detecting a short circuit based on an output voltage value of the DC regulator (3) obtained by making the switch unit (4) conductive for predetermined time and, after that, interrupting the switch unit (4); a second short-circuit detector (7) for detecting a short circuit based on a value of current flowing in the switch unit (4) when the switch unit (4) is conductive; and a switch interrupting unit (8), when a short circuit is detected by the second short-circuit detector (7), for forcedly interrupting the switch unit (4) regardless of a state of the switch unit (4) controlled by the first short-circuit detector (5).

A polyurethane caulking material for expansion joints of a ballastless track of a high speed railway is disclosed. The caulking material is prepared from two parts A and B. the part A is composed of the following raw materials, by weight, 100 parts of isocyanate and its prepolymer, 10-150 parts of a plasticizer, 5-150 parts of a solid filler, 1-20 parts of a diluents, 1-5 parts of an adhesion promoter, 0-10 parts of a thixotropic agent and 1-3 parts of a water-removal agent. The part B is composed of the following raw materials, by weight, 10-20 parts of modified polyhydric alcohol, 1-5 parts of a diluent, 2-30 parts of a plasticizer, 5-30 parts of a solid filler, 0-5 parts of a thixotropic agent, 0.5-2 parts of an antifoaming agent, 0.1-1 part of an anti-aging agent and 0-0.01 part of a catalyst. The mass ratio of the part A to the part B is 4:1-10:1. The polyurethane caulking material has advantages of good low-temperature curing performance, high displacement capability, low tensile modulus, good bond property and excellent endurance quality and fatigue resistance, and is suitable for expansion joints of a ballastless track of a high speed railway as well as expansion joints of roads and airfield runways.

The invention relates to a solid state hard disk secure encryption system. The encryption system comprises a main engine, a solid state hard disk, and a key and identity authentication system, wherein the solid state hard disk, the key and identity authentication system are arranged on the main engine; the solid state hard disk comprises an encryption and decryption module, a solid state hard disk control module and a storage module; the identity authentication system is stored in the storage module; and the key is stored on key storage media except the solid state hard disk. Compared with the prior art, in the system, the key of the invention is stored on the key storage media (such as USB KEY, other storage devices or servers and the like) except the solid state hard disk, so that the key, the main engine and the solid state hard disk are separated, and the media for storing the key can be stored into other places, thereby improving the security of the solid state hard disk secure encryption system.

The invention relates to a graphene/TiO2-based near-infrared/ultraviolet radiation resistant polymer composite film and a preparation method thereof, relating to a near-infrared/ultraviolet radiation resistant composite film and a preparation method thereof. The invention aims to solve the problems of the existing heat reflecting material such as poor heat insulation effect, low transparency, serious light pollution and high production cost and the like. The composite film is prepared by adding the mixed liquid of graphene oxide dispersion and nano-TiO2 dispersion in the curing system of epoxy acrylate at a volume ratio of 1-10:50. The preparation method comprises the following steps: 1) preparing graphene oxide; 2) preparing TiO2 nanoparticles; 3) preparing nanometer graphene/TiO2 composite; and 4) preparing the graphene/TiO2-based near-infrared/ultraviolet radiation resistant polymer composite film. The composite film is mainly used for the glass coating of a building or means of transport for running an air-conditioning system.

The invention provides a lithium ion battery negative electrode comprising a diamond-like thin film layer. The negative electrode comprises a conductive current collector, a negative electrode active material layer arranged on the conductive current collector and a diamond-like thin film layer deposited on the surface of the negative electrode active material layer; and the diamond-like thin film layer comprises doped elements, wherein the doped elements comprises one or more of Si, B, N, P, Al, Be, Mg, Ti, Cr, W, Fe, Zr, Pt, Mo, Co, Ni and Sb. According to the lithium ion battery negative electrode, the diamond-like thin film layer is deposited on the surface of the negative electrode active material layer, and the diamond-like thin film layer has excellent electrochemical inertness and conductivity and high mechanical strength, so that occurrence of an unstable SEI layer on the surface of the negative electrode active material is avoided, and the cycling stability of the electrode is greatly improved. The invention also provides a preparation method for the lithium ion battery negative electrode, and the lithium ion battery.

The invention discloses a method of atmospheric dielectric barrier discharge plasma to carry out polymer microporous membrane hydrophilic modification. The method comprises the following steps: (1) the polymer microporous membrane is cleaned clearly, dried and then arranged into the solution of an organic monomer for dipping; after the surface of the microporous membrane absorbs the organic monomer, the microporous membrane is taken out and aired; (2) the polymer microporous membrane treated by the step (1) is arranged between the two discharge electrodes of the dielectric barrier discharge to carry out atmospheric dielectric barrier discharge plasma treatment; (3) the polymer microporous membrane treated by step (2) is cleaned and then dried. The method has the characteristics of simple technique, convenient operation, quick processing speed, good and durable processing effect, low cost, being not easy to cause environment pollution, energy saving, and the like.

The invention discloses an indoor robot positioning navigation method and device. The method comprises using a camera on a robot to shoot an image containing a calibration plate positioned above the robot; using an image processing technology to recognize the calibration plate in the image, determining a current position and a current deviation angle of the robot according to the calibration plate in the image and known coordinates of the calibration plate, and positioning absolute positions of the robot; by taking the current position and the current deviation angle as a reference, navigating the robot by adopting an inertia navigation manner. By using the invention, problems of low positioning precision, high cost, inconvenient use and narrow use range of the existing positioning navigation method are solved.

The invention provides a three-dimensional oil-water separating material based on the static spinning technology and a preparation method thereof, belonging to the technical field of water treatment. The method specifically comprises the following steps: (a) preparing a static spinning solution; (b) selecting a proper solvent to directly receive static spinning nano fibers to obtain a nano fiber solution; (c) shaping and freezing the nano fiber solution, and drying through a freezing drying machine to obtain the three-dimensional nano fibers; (d) pre-oxidizing, carbonizing and activating the three-dimensional nano fibers to obtain three-dimensional carbon nano fibers; (e) wrapping the three-dimensional carbon nano fiber glue with lipophilic and hydrophobic films so as to obtain the final three-dimensional oil-water separating material. According to the preparation method of the three-dimensional oil-water separating material, the composition and structure of the material are easily controlled; the mechanical performance and hydrophobic performance of the materials can be effectively improved; the oil-water separating effect is good; the material can be recycled and has a wide application prospect in the oil-water separation field.

The invention relates to a Fe3O4/C magnetic nano solid extracting agent coated with a novel carbon material, belonging to the field of chemical analysis and test instruments and equipment. The extracting agent simultaneously has large special surface area of nano material, short disperse path, magnetic separation capacity of magnetic material and strong adsorption capacity of carbon material, thereby being very suitable for pretreating large-scale and large-size water samples in batch. In addition, the solid extracting agent is simple to prepare, low in raw material cost, rapid and convenientto extract and friendly to the environment and only needs using a small amount of organic solvent in the whole process.

The invention belongs to the field of powder paints and particularly relates to a self-cleaning super-weather-proof powder paint. The self-cleaning super-weather-proof powder paint comprises a carboxyl-terminated polyester particle system and a fluorocarbon resin particle system in a weight part ratio of 4:1-1:4, wherein the fluorocarbon resin particle system contains TiO2 nano-particles. As carboxyl-terminated polyester is introduced into a pure fluorocarbon paint, the phase separation occurs in a solidification process, and the fluorocarbon resin floats up to the surface of a coating to serve as coating protection and ageing resistance; the carboxyl-terminated polyester and the like and a substrate can be well wetted, so that the coating and the substrate can be well adhered and can hardly crack and spall; as the TiO2 nano-particles only exist in a fluorocarbon phase, the resin on a bottom layer cannot be broken, and the excellent stability of the system is guaranteed; and the TiO2 nano-particles are scattered in a dry blending manner, and the complex preprocessing is avoided, so that the preprocessing process can be greatly shortened, the cost is lowered, and the efficiency is improved.

The invention discloses a wall-hanging type air conditioner, which comprises an indoor machine, wherein the indoor machine comprises a shell body; a heat exchanger and a main air duct are formed inside the shell body; a main air inlet and a main air outlet that is communicated with the main air duct are formed on the shell body; a main injection air blower that is used to blow out the heat exchanged air after being exchanged by the heat exchanger from the main air outlet is formed inside the main air duct; a drainage air outlet is formed on the shell body below the main air outlet; a drainage air duct separate from the main air duct is formed inside the shell body below the main air duct; the drainage air duct is communicated with the drainage air outlet; a drainage blower is formed inside the drainage air duct; and the drainage blower is used to lead the heat non-exchanged air to the drainage air duct and blow the heat non-exchanged air out from the drainage air outlet through the drainage air duct. By utilizing the wall-hanging type air conditioner provided herein, mixed air sending can be realized on the bases that the main air duct is not changed.

The invention discloses a coaxial compound nanometre fibre film composed of compound nanometre fibres of a fluorine-containing polymer skin layer and a polyimide core layer, wherein the upper and the lower surfaces and inner holes of the film are distributed symmetrically. The coaxial compound nanometre fibre film is prepared from a fluorine-containing polymer solution and a polyamic acid solution through coaxial static spinning compounding, mechanical roller pressing and thermal imidization; the nanometre fibre film provided by the invention integrates the advantages of fluorine-containing polymer and polyimide; the fluorine-containing polymer has excellent electrolyte wetting property, liquid maintaining property and ion conductivity; and the polyimide has high mechanical strength and high heat resistance. The compound nanometre film provided by the invention is fit for high-energy lithium ion energy storage batteries and high-power electrokinetic cells.