204results about How to "Easy to design and manufacture" patented technology

The invention discloses a method for identifying modal parameters of a transformer coil. The method includes the following steps: vibration signals of all measure points of the transformer coil are collected; Fourier transformation is carried out on the vibration signals, and a vibration frequency response curve of the transformer coil is obtained; Fourier inversion is carried out, and free vibration signals of the transformer coil are obtained; wavelet conversion is carried out on the free vibration signals through Morlet wavelets, and a wavelet transformation time-frequency diagram is made; wavelet ridges are extracted from the wavelet transformation time-frequency diagram, and the vertical coordinate of each wavelet ridge is inherent frequency of each step of the transformer coil; the damping ratio of inherent frequency of all the steps is calculated; a coil vibration mode of the inherent frequency of each step is calculated. With the method, the mode parameters of the transformer coil can be accurately and efficiently identified. Design, manufacturing, coil deformation detection and state evaluation are convenient to carry out on a coil structure.

A gas hydrate exploitation device, which belongs to the technical field of energy exploitation, comprises an upper exploitation drill part, a conveying lift pipe and a lower exploitation drill part. The device is easy to move, and can increase the efficiency and safety of exploitation, the device adopting a bottom-up exploitation method can preliminarily separate and backfill silt into a production well, is more convenient and faster, and can reduce energy consumption, moreover, the facilities of the device are simple, the cost is low, and the device is easy to control, and is highly reliable.

The present invention discloses an aspherical lens, including two refracting surface, in which at least one refracting surface is aspherical surface. Said invention also provides a formula for solve its form, and can obvisouly thin the lens, and make the field curvature superpose on the bend of far point spherical surface basically so as to make lens obtain excellent imaging quality.

The invention provides a standardized construction method for a hydraulic prefabricated member based on BIM (Building Information Modeling). The standardized construction method comprises the following steps: S1, modeling a three-dimensional parameterization model by using a BIM modeling tool, and further implementing the design of three-dimension drawing according to the model; S2, dividing and classifying project units according to different members; S3, deploying corresponding members in a three-dimensional model of a specific project; S4, exporting to obtain an arrangement drawing, a detail table and control parameters of the members, and counting the project quantity of the members; S5, performing BIM on a prefabricated field, and guiding capital construction of the prefabricated field based on the BIM; S6, exporting the three-dimensional parameterization model, thereby performing specific three-dimension design and structure operation on the members; S7, simulating all stages of field operation for prefabricating the members; S8, implementing field prefabrication of the members; S9, prefabricating the members and implanting chips containing traceable prefabrication quality information of the members into the members; S10, after prefabrication of the members is finished, performing hanging safe construction on the members.

There is provided a baffle plate which conforms to the shape of the inner peripheral surface of a transmission case and can be easily brought into contact with the inner peripheral surface of the transmission case, making it easier to design and manufacture the baffle plate. Rubber plates are arranged on a side of the baffle plate in proximity to the bottom wall of the transmission case. The baffle plate encloses both sides of the rotating surface of the driven sprocket. Therefore, even if the inner peripheral surface of the bottom wall of the transmission case has a complex shape, the side of the baffle plate in proximity to the case bottom wall can be closely attached to the inner peripheral surface of the transmission case. And, the baffle plate can be easily designed and manufactured. Also, oil agitating resistance during rotation of the driven sprocket can be reduced.

The invention relates to a frequency-modulation mass buckling-restrained brace, which comprises a frequency-modulation mass vibration reduction part and a buckling-restrained energy dissipation and vibration reduction part, wherein the buckling-restrained energy dissipation and vibration reduction part consists of steel cores which are connected between important gussets of a structure, sleeved steel tubes which are sleeved on active sections of the steel cores, filled concrete and flexible materials which are glued on the surfaces of the steel cores; the frequency-modulation mass vibration reduction part consists of mass blocks, resilient elements and damping materials; the mass blocks are formed by the sleeved steel tubes and the filled concrete; the resilient elements are made of steel plate springs and fixed between gusset plate connecting pieces and the sleeved steel tubes or fixed between support connecting pieces and the sleeved steel tubes; and the damping materials and the flexible materials between the steel cores and the filled concrete of the buckling-restrained energy dissipation and vibration reduction part are shared. The frequency-modulation mass buckling-restrained brace integrates TMD vibration reduction technology and energy dissipation and vibration reduction technology of buckling-restrained braces, has the characteristics of easy manufacture, convenient assembly, economy and durability, non-maintaining and changeability, and simultaneously has the function of vibration reduction in the horizontal direction and the vertical direction.

The invention provides a room-temperature liquid metal battery which comprises an anode, a cathode, an interlayer and a battery shell. The anode is made of a gallium-based or mercury-based liquid alloy, the cathode is made of an alkali metal liquid alloy, the interlayer is ionic liquid, and the anode, the interlayer and the cathode are arranged in the battery shell from bottom to top. The cathode is made of the alkali metal liquid alloy, the anode is made of the gallium-based or mercury-based liquid alloy, electrolyte is the ionic liquid, and the three materials are liquid at room temperature, so that heating and heat insulating devices are not needed, and the room-temperature liquid metal battery can be realized really.

An optical disc includes a base having a signal reading surface at a first surface; a reflective layer provided on the signal reading surface of the base; a cover layer provided on the reflective layer; and a small memory device having a communication function provided at a side opposing the signal reading surface of the base.

The invention relates to a brushless DC (Direct Current) motor for unmanned air vehicles, belonging to the technical field of unmanned air vehicle powerplants. The brushless DC motor comprises an external rotor composed of a rotor end cover, a rotor yoke and a permanent magnet, a stator composed of a winding, a stator iron core and a stator yoke, an upper bearing, a lower bearing, a rotation shaft and a stopper ring, wherein the outer diameter of the rotor yoke is the same as that of the rotor end cover, the rotor yoke is fixed at the lower end of the rotor end cover, the permanent magnet is fixed on the inner wall of the rotor yoke, and the number of magnetic poles of the permanent magnet is 24; the stator iron core comprises 18 slots, the stator yoke is sleeved on the inner wall of the stator iron core, and the winding is coiled on the outside of the stator iron core; the upper bearing and the lower bearing are respectively fixed on two ends of the rotation shaft; the stator is connected with the rotor through the rotation shaft, the stator is embedded inside the rotor end cover, and the stopper ring is sleeved on the rotation shaft. In the invention, by directly driving airscrews, the brushless DC motor is beneficial to elimination of efficiency loss of a driving system, and improvement of lift force / power consumption ratio and lift force / mass ratio of air vehicles.

The invention discloses a terahertz jumperless inverted coplanar waveguide monolithic circuit package transition structure. The terahertz jumperless inverted coplanar waveguide monolithic circuit package transition structure is characterized by comprising a lower cavity, an upper cavity and a coplanar waveguide circuit, wherein the upper cavity covers the lower cavity to form a rectangular waveguide cavity, a coplanar waveguide circuit shielding cavity and a monolithic circuit shielding cavity which are sequentially connected, a monolithic circuit is arranged in the monolithic circuit shielding cavity, and a coplanar waveguide circuit is arranged in the coplanar waveguide circuit shielding cavity and is connected with the monolithic circuit. With the terahertz jumperless inverted coplanar waveguide monolithic circuit package transition structure provided by the invention, the loss of a chip package structure in a terahertz frequency band can be reduced, the package performance is improved, the process complexity and cost are reduced, and the terahertz jumperless inverted coplanar waveguide monolithic circuit package transition structure is simple and is convenient to design and manufacture.

The invention belongs to the technical field of machining, and relates to a method for manufacturing a combined cam shaft, in particular to the method for manufacturing the combined cam shaft with a hollow tube mandrel. The method comprises the following manufacturing processing steps: firstly, straightening the hollow tube mandrel; secondly, performing tight fit and cold assembled positioning on a cam, a shaft neck component and a mandrel by using a numerical controlled assembling machine, and then realizing close connection of the cam, a shaft neck and the mandrel by machining expanding, so that the mandrel which generates plastic deformation is firmly combined with the cam and the shaft neck which generate elastic deformation; and finally, fixing drive components at the two ends of the cam shaft by a laser welding method. The method for manufacturing the combined cam shaft has the advantages of simple overall process, obviously reduced weight compared with a cast iron cam shaft, low integrated cost and high assembly precision, and completely meets the using requirements on the cam shafts of various automobile engines.

The invention discloses a preparation method for a molybdenum-antimony co-doped titanium-based stannic oxide electrocatalysis electrode, and belongs to the technical field of catalytic electrodes. The preparation method comprises: firstly using a sol-gel process for preparing the molybdenum-antimony co-doped titanium-based stannic oxide electrocatalysis electrode, concretely pretreating a titanium matrix, taking SnCl4.5H2O, Sb2O3 and (NH4)6Mo7O24 as raw materials, and preparing a sol according to the Sn:Sb:Mo atomic ratio of 100:3:1-3, employing a dipping-pulling process dip-coating technology, controlling the dipping time and the pulling speed, employing gradient-program heating sintering processing, and controlling the heat treatment temperature and the heat treatment time of each heating stage, so as to prepare the molybdenum-antimony co-doped titanium-based stannic oxide electrocatalysis electrode. The prepared electrode is relatively low in cost, uniform and dense in surface, good in stability and relatively strong in degradation capability on phenols, caprolactam, reactive black KN-B and other organic pollutants with different structures.

This invention relates to bar code used in digit water level code bar and electrical theodolite panel and its coding and decoding method. Its code elements are composed of a pair of light and dark strips with same order. The duty cycle of dark strips in the code elements at least two kinds and the code element with different duty cycle is named as proportion code. The multiple codes distributes as designed order to form the codes of digit water level and electrical theodolite panel which are characterized by the same width of each code element.

The dynamic definition test of aviation camera uses the simulation dynamic target generator. It belongs to a device used to examine aviation camera's dynamic definition in the realm of optoelectronic detect technique. The technique problem to solve is to provide a kind of simulation dynamic target generator used on aviation camera dynamic definition test. The resolve technique scheme contains uniform illuminant, target definition board, parallel light pipe, flat reflector, single spindle board. The target definition board between the uniform illuminant and the parallel light pipe is located on parallel light pipe's focal plane and vertical to the ray axis. The flat reflector is on the exit light path of parallel light pipe, it makes the ray axis of parallel light pipe align to the center of flat reflector. The flat reflector is vertically fixed on the mesa of single spindle board, it makes the reflecting surface of flat reflector pass the rotating center of single spindle board mesa, and the flat reflector rotates with the mesa's rotating. This generator has simple structure and debugs conveniently. It is fit for all kinds of aviation camera dynamic definition test.

The invention discloses an energy-storing and shock-absorbing type power generation device for subway train rails. The energy-storing and shock-absorbing type power generation device comprises an external upper bearing plate, a lower bearing plate and a vibration block, wherein four main shock-absorbing springs are supported between the external upper bearing plate and the lower bearing plate; multiple layers of cantilever beams are arranged in parallel between the external upper bearing plate and the lower bearing plate; piezoelectric ceramic pieces are glued on the upper surfaces and the lower surfaces of the cantilever beams; the multiple layers of cantilever beams are supported between support seats on the left side and the right side, the multiple layers of cantilever beams are connected to one vibration block, the top of the vibration block is supported on an internal upper bearing plate, and the bottom of the vibration block is supported on the lower bearing plate through an auxiliary shock-absorbing spring. Vibration energy is converted into electric energy through the butterfly type piezoelectric cantilever beams, a two-level shock-absorbing mechanism of a subway train is formed by the main shock-absorbing springs and the auxiliary shock-absorbing spring, recycling of vibration energy during running of the subway train is realized, a self-power-generation system of the subway train is formed through energy conversion, energy is saved, and the subway operation cost is reduced.

The invention provides a cushioning mechanism comprising a base, an equal-width cam mechanism, a limiting bracket, a ball screw, two groups of energy dissipaters and energy dissipater fixing bases, wherein the equal-width cam mechanism, the limiting bracket, the ball screw, the two groups of energy dissipaters and the energy dissipater fixing bases are mounted on the base. The equal-width cam mechanism comprises a quadrilateral frame and a cam mounted in the quadrilateral frame. The cam is connected with a nut of the ball screw. The two groups of energy dissipaters are mounted on the energy dissipater fixing bases on the two sides of the equal-width cam mechanism separately. The ends, away from the energy dissipater fixing bases, of the two groups of energy dissipaters are connected with the two sides of the quadrilateral frame separately. The limiting bracket is mounted on the periphery of the equal-width cam mechanism. The cam mechanism performs linear reciprocating motions between the two groups of energy dissipaters under the limit of the limiting bracket. The end, away from the equal-width cam mechanism, of the ball screw is provided with a spring latch assembly used for being connected with a building structure or a bridge structure. The cushioning mechanism is low in cost and has a good damping limiting function.

The invention discloses a variable-inclination carrier roller set which comprises an intermediate carrier roller and side carrier rollers located at both ends of the intermediate carrier roller, wherein the intermediate carrier roller and the inner side shaft ends of the side carrier rollers are supported on an intermediate support, the outer side shaft ends of the side carrier rollers are supported on side supports, and the intermediate support and the side supports are fixed on a pedestal; the side supports are fixed on the pedestal in a displacement adjustable way along the adhesive tape moving direction; and vertical adjusting supports are arranged on the side supports, the upper ends of the vertical adjusting supports are provided with slots for supporting the outer side shaft ends of the side carrier rollers, and the vertical adjusting supports are fixed on the side supports in a height adjustable way. Because the upward inclinations and the forward inclinations of the side carrier rollers can be adjusted, the variable-inclination carrier roller set can be used for replacing a groove type carrier roller set, a groove type anteverted carrier roller set and a groove-angle-adjustable carrier roller set according to different positions of a belt conveyer, has good usability and interchangeability and is convenient to users to maintain.

The invention relates to a bipolar plate multi-track snaking flow field structure of a proton exchange membrane fuel battery in the technical field of the duel battery; comprising flow fields at two sides which are formed in a single punching at the same time, and the flow fields are multi-track snaking flow fields, and half-height ridges and half-depth grooves are arranged nearby gas inlets and outlets of the flow fields at two sides; the half-height ridge on the front-side flow field is corresponding to the half-depth groove of the reverse-side flow field, and the half-height ridge on the reverse-side flow field is corresponding to the half-depth groove of the front-side flow field; wherein, the half-height ridge is one part of the ridge, and the height of the half-height ridge is less then that of the ridge and more than zero, and the half-height ridges are arranged between the gas flow passages nearby the gas inlets and outlets, and the adjacent flow passages are communicated by a gap between the upper part of the half-height ridge and a membrane electrode component; the half-depth groove is one part of the flow passage, and the depth of the half-depth groove is less than that of the flow passage and more than zero; the flow passages of the half-depth grooves are communicated by a gap between the half-depth groove and the membrane electrode component. A cooling flow field is omitted, thus greatly simplifying the structure of the metal bipolar plate; the multi-track snaking flow field is used for effectively preventing the problem of difficult water draining.

The invention discloses a test fixture for simply supported beam fatigue loading and a use method of the text fixture, and belongs to the technical field of test fixtures. The test fixture comprises a fixture I arranged on the midspan of a simply supported beam, a fixture II and a vibrating motor, the fixture II and the vibrating motor are arranged at the two ends of the simply supported beam respectively, the fixture I comprises a fastening plate I, a fastening plate II, screws, nuts, clamping plates and load ribs which are arranged on the upper side and the lower side of the simply supported beam, the fastening plate I is connected with the fastening plate II through the screws and the nuts, the clamping plates are arranged on the portions, on the two sides of the simply supported beam, of the opposite surfaces of the first fastening plate I and the fastening plate II, it is guaranteed that the simply supported beam does not move or topple over in the fatigue loading process, two load ribs are arranged between the fastening plate I and the simply supported beam and between the fastening plate II and the simply supported beam separately, a three dividing point loading form is formed, the portion, between every two load ribs, of the simply supported beam forms a pure bending section, and the vibrating motor is arranged on the upper portion of the fastening plate II at the upper end of the simply supported beam. By means of the load ribs, the dead weight and fatigue load of the fixtures and the vibrating motor are transmitted to the simply supported beam, and a test specimen cannot jitter under the action of a dynamic load.

The invention relates to a domestic ceramic die design and manufacture method based on reverse engineering. The method comprises the following steps that three-dimensional point cloud data of a ceramic product are obtained; through reverse engineering postprocessing analysis, Imageware software large-scale mass three-dimensional point cloud data are utilized for processing and extraction, a grid model of a domestic ceramic product digital model is obtained, the model serves as a carrier model and is redesigned and modified, and innovative and novel elements are added; a three-dimensional embossment model is generated by applying the single-image three-dimensional reconstruction technology, the carrier model is subjected to local parameterization, and a hook face basso-relievo model is rapidly generated on the carrier grid model through the texture mapping principle; and according to the obtained grid model with the hook face basso-relievo model, a basso-relievo ceramic artware solid piece is output through the 3D printing manner, and a new domestic ceramic die is obtained. By means of the domestic ceramic die design and manufacture method based on reverse engineering, the traditional domestic ceramic die manufacturing period can be shortened.

A magnetically-coupled resonant high-frequency air-core transformer comprises a primary winding, a secondary winding, a winding framework, a primary matching capacitor and a secondary matching capacitor, wherein the primary winding and the primary matching capacitor are connected in series or in parallel, and in work, a circuit formed by the primary winding and the primary matching capacitor is in serial or parallel resonance; the secondary winding and the secondary matching capacitor are connected in series or in parallel, and a circuit formed by the secondary winding and the secondary matching capacitor is in serial or parallel resonance; one, two or several pairs of the secondary windings and the secondary matching capacitors can be provided; primary resonant frequency and secondary resonant frequency are the same; the primary winding and the secondary winding are wound on the winding framework; the winding framework is made of a non-magnetic material, preferably, an epoxy resin material. The winding framework of the air-core transformer can be annular or in other shapes, and the primary winding and the secondary winding are wound on the winding framework, so that a relatively high coupling coefficient is kept.

The invention discloses a vehicle one-way traveling deceleration strip power generator and method. The vehicle one-way traveling deceleration strip power generator comprises a deceleration strip main body and a power generation module. The deceleration strip main body comprises a first deceleration strip main body and a second deceleration strip main body. One end of the first deceleration strip main body is a gentle slope through which a vehicle can travel, and the other end of the first deceleration strip main body is a right-angle side. The cross section of the second deceleration strip main body is a sector. One straight side of the sector is the same as the right-angle side of the first deceleration strip main body in length. A dip angle is formed by the other straight side of the sector and the horizontal plane. The vertex of the right-angle side of the first deceleration strip main body is connected with the vertex of the sector of the second deceleration strip main body through a rotary shaft. The vehicle one-way traveling deceleration strip power generator is simple in structure and convenient to design and manufacture. A transmission mechanism changes the transmission direction of force tactfully according to the automobile clutch principle. The deceleration strip power generator achieves full recycling of vibration energy generated by the vehicle before and after the vehicle passes a deceleration strip and in-time separation and combination of a spindle through an electromagnetic clutch.

The invention discloses a permanent-magnet cylindrical cage type high-gradient magnetic separator with high processing capacity. A separating cylinder (2) is a cylindrical cage which is a rotary body and is filled with magnetic matrices (4); two ends of the cylindrical cage are supported on a hollow support shaft (3) through bearings; a magnetic system is a permanent-magnet lattice uniform magnetic field system formed by an upper magnetic system and a lower magnetic system, the upper magnetic system is arranged in the cavity of the cylindrical cage and suspended on the hollow support shaft (3), the lower magnetic system is installed outside the cylindrical cage, the hollow support shaft (3) is a non-rotary body, one end of the hollow support shaft (3) is used as an axes feeding port (12),the middle of the hollow support shaft (3) is provided with a baffle plate, and one side of the baffle plate of the hollow support shaft is provided with a separating and feeding port close to the feeding port (12), the other side of the baffle plate of the hollow support shaft is provided with a concentrate feeding port (14), and the other end of the hollow support shaft (3) is used as a concentrate discharging port (13). The permanent-magnet cylindrical cage type high-gradient magnetic separator has the advantages of easiness for maximization, convenience for design and production, low energy consumption, reasonable magnetic distribution, uniform background magnetic field working region as well as high processing capacity and stable separation indexes under limited tonnage and volume.

The present invention relates to a flexible printed circuit board and a method for manufacturing the same, which can implement low resistance characteristics and can simply and easily perform processes, thereby reducing manufacturing costs and enhancing productivity. The method comprises: forming a deposition seed layer on a prepared substrate; forming, on the deposition seed layer, a circuit cover layer having a circuit pattern groove in a shape of a circuit pattern; forming a circuit plating layer in the circuit pattern groove by plating the circuit cover layer; and forming the circuit pattern by etching the circuit plating layer.

The invention discloses a corrugated-folded paper multistage sandwich energy absorption structure and a preparation method thereof. A core body comprises a plurality of corrugated-folded multistage structure unit cells, each structure unit cell is composed of four inclined corrugated sandwich plates, and a top view is in a symmetrical herringbone shape. The structure is modeled through commercialsoftware, digitalized slicing is conducted, finally, the structure is guided into a 3D printer to be integrally formed, and the corrugated-folded paper multi-stage sandwich energy absorption structureis obtained. Hybrid composite design and preparation of the corrugated and folded paper structures are achieved, and the obtained corrugated-folded paper multistage sandwich energy absorption structure has the advantages of being high in bearing capacity, buckling resistance and energy absorption capacity and has very good application prospects in the fields of aerospace, transportation, high-endequipment and national defense and military affairs.

Die assembling, die locking and die disassembling actions of a die casting machine are basic functions for producing qualified casts. The conventional die casting machine adopts a hydraulic oil cylinder for pushing a toggle rod mechanism for performing the die assembling, die locking and die disassembling actions, the die locking force is difficult to regulate, and the toggle rod mechanism and an auxiliary crosshead guide mechanism are complex and bulky in structures and difficult to manufacture and mount. The invention provides a spiral type die assembling, die locking and die disassembling mechanism, and a hydraulic motor is adopted for driving a gear nut, thereby rotating a thrust screw rod for generating mobile feed motion and further pushing a movable die plate to realize fast die assembling and die locking; and the fast die disassembling can be realized when the hydraulic motor rotates in reverse direction. The mechanism can accurately figure out the die locking force. Simultaneously, an original regulating mechanism for regulating the distance between a rear plate and a fixed die plate is not required, the integral structure of the die casting machine is greatly simplified, and the control and the operation are simpler.

The invention relates to a bidirectionally luminous runway edge lamp, which comprises a lamp shade and a lamp holder. A radiating lamp bracket for fixing a light source is arranged inside the lamp shade, and is connected with the lamp holder; the lamp also comprises at least one yellow light-emitting diode (LED) light source which is fixed on the radiating lamp bracket, and a corresponding white LED light source; an inclined angle of 2 to 5 degrees is formed between emergent rays of the white LED light source and the yellow LED light source and the same plane; an inclined angle between the two emergent rays is more than 90 degrees and less than 180 degrees; a first Fresnel lens is arranged on a light path of the white LED light source; and a second Fresnel lens is arranged on a light pathof the yellow LED light source. The runway edge lamp is simple in structure and can save energy; meanwhile, the service life of the LED light sources is 50,000 hours, and the problem that light sources in an airport are frequently replaced is solved.

The invention discloses a solar energy collecting method and a device. The solar rays which are reflected and focused by a concave mirror are led into the inner part of a hollow cavity through a small hole on the hollow cavity which is made of high-temperature resistant material such as cast iron, carbon fibers and the like and is opaque and is in a pipe shape or a spherical shape, the solar ray is reflected and absorbed by the inner wall of the hollow cavity for multiple times to realize the conversion of solar energy to heat energy, and transparent glass or plastic shell in a spherical shape, an inclination rooftop shape, a round rooftop shape, a hemispherical rooftop shape and the like is made as a wind resistant body of the concave mirror reflective and focusing solar heat energy collecting device. The solar energy collecting device is low in production cost, is simple in process, is long in service life and is convenient to maintain.