40results about How to "Reduce diffuse" patented technology

The invention discloses a preparation method and application of a lithium-sulfur battery positive electrode material. The preparation method comprises the following steps: cross-linking chitosan and phytic acid to prepare porous biological carbon aerogel; compounding the porous biochar aerogel with a catalyst nano In2O3 to obtain a porous biochar aerogel-coated In2O3 composite material; performing freeze drying and microwave heating treatment to carbonize the aerogel to obtain an N, P co-doped three-dimensional porous biological carbon-coated In2O3 composite material; and compounding with elemental S to obtain an N and P co-doped three-dimensional porous biochar (at) In2O3 (at) S composite material, namely the lithium-sulfur battery positive electrode material. The positive electrode material with a'confinement-anchoring-catalytic conversion 'multifunctional coupling effect is constructed, when the positive electrode material is applied to the lithium-sulfur battery, confinement and anchoring of LiPSs can be achieved, catalytic conversion of the LiPSs can be promoted, the shuttle effect of the LiPSs is fundamentally inhibited, and the rate and the cycling stability of the LiPSs are remarkably improved; the method has the advantages of simple preparation process, environmental friendliness and the like.

The invention discloses a preparation method of special titanium dioxide for road sign paint, and belongs to the technical field of titanium dioxide processing. The preparation method of the special titanium dioxide for the road sign paint comprises the following steps: (1) adding a titanium dioxide primary product into a sodium hydroxide solution, heating and stirring, and after the treatment is finished, washing and drying to obtain modified titanium dioxide; step (2), mixing the modified titanium dioxide with deionized water, performing crushing and wet grinding, then mixing the modified titanium dioxide after wet grinding with a modified dispersant, and performing sanding treatment to obtain sanding slurry; and (3) adding the sanding slurry into coating equipment with stirring equipment, adding deionized water for dilution, starting the stirring equipment, then adding a coating material, curing, drying and crushing to obtain the special titanium dioxide for the road sign paint. The special titanium dioxide for the road sign paint, prepared by the method, has the properties of high dispersion, yellowing resistance, high temperature resistance and high gloss.

The utility model belongs to the field of medical instruments, and discloses a high-light-guide anoscope which comprises a light guide tube, a handle and an anoscope core. The light guide mirror tube is connected with the handle; the lens core is detachably arranged on the light guide lens tube; the light guide mirror tube is provided with a dodging area, a reflection light guide area and a protection area; the reflection light guide area comprises a polygonal plane reflection inner wall and a polygonal light guide layer, the polygonal plane reflection inner wall and the polygonal light guide layer both extend to the dodging area at the other end from the protection area, and the polygonal light guide layer is arranged between the polygonal plane reflection inner wall and the light guide mirror pipe wall. A light guide inlet of the polygonal light guide layer is located at the junction of the polygonal light guide layer and the protection area. According to the anoscope, the light guide performance of the anoscope can be greatly enhanced in structure, the guided light source can be uniformly distributed as much as possible, the phenomenon of uneven local brightness can be reduced, and the accuracy of clinical diagnosis can be improved.

The utility model discloses a pedestal pan shower nozzle and a pedestal pan, the pedestal pan shower nozzle comprises a shower nozzle body, the shower nozzle body is provided with an outlet end, a water flow channel is arranged in the shower nozzle body, the water flow channel comprises a water inlet section and a water outlet section communicated with the water inlet section, the water flow section of the water outlet section is larger than that of the water inlet section, and the water flow section of the water outlet section is gradually expanded towards the direction of the outlet end. According to the technical scheme, noise generated by flushing is reduced.

This utility model relates to a noise reduction structure for a DC motor, wherein the noise reduction structure (1) is disposed within a cavity for accommodating a commutator (2) and close to the sound source. The noise reduction structure (1) can be a honeycomb structure, a square structure, a circular structure, or a regular polygonal structure, and can be disposed on the bottom surface of the cavity, or simultaneously on the sidewalls and bottom surface of the cavity. The noise reduction structures (1) can be evenly distributed on the bottom surface and sidewalls of the cavity, or staggered. In addition, the noise reduction structure (1) can also be disposed within the cavity of a gearbox (5), including at the bottom of the gearbox cavity (6), or simultaneously on the bottom and cavity walls of the gearbox cavity (6). Using this noise reduction structure for a DC motor, the sound waves generated by the sound source are effectively reflected and canceled out by the noise reduction structure, thus reducing the noise of the DC motor and possessing certain practical value.

The application belongs to the technical field of polishing pads, and particularly relates to a polishing pad end point inspection window and a preparation method and application thereof. The preparation method comprises the following steps: reacting aliphatic isocyanate and polyester polyol to prepare a prepolymer, mixing the prepolymer with a curing agent, vacuum defoaming, and vulcanization. The polyester polyol is polycaprolactone diol obtained by taking polycarbonate diol as a starter and modifying caprolactone. The molecular weight of the polycarbonate diol is 200-400, and the molecular weight of the polyester polyol is 1000-3000. The curing agent comprises dihydric alcohol and alicyclic polyamine. The alicyclic polyamine has a branched chain with a carbon atom number of less than or equal to 4, and the functionality of the alicyclic polyamine is greater than or equal to 2. The polishing pad end point inspection window prepared by the preparation method has high light transmittance, and the light transmittance and hardness attenuation are reduced.

The invention provides an infrared heating device and a fuel cell tail emission heating device, and relates to the technical field of tail gas emission. The infrared heating device comprises a shell, a containing space is defined by the shell, the shell is provided with an inlet and an outlet, the inlet is used for gas entering, and the outlet is used for gas discharging; the infrared heating pipe is arranged in the accommodating space and is used for radiating infrared rays into the accommodating space so as to heat the gas; and the control assembly is electrically connected with the infrared heating tube and used for controlling the infrared heating tube to be turned on or turned off.

The utility model relates to the technical field of aluminum profile processing, and provides a vertical spraying room for aluminum profiles, which is used for spraying an aluminum profile main body and comprises an annular spraying room main body, a processing channel is arranged on the side wall of the spraying room main body, and the aluminum profile main body penetrates through the processing channel to enter or move out of the spraying room main body. By means of the technical scheme, the problems that in the prior art, an existing aluminum profile vertical spraying room is generally large in open space, spraying dust is prone to being dispersed, the machining environment is affected, and residual powder is difficult to collect effectively are solved.

The invention relates to the field of peanut protein powder feeding, in particular to a peanut protein powder feeding device capable of preventing powder from flying, which comprises a support table, and a feeding pipe is obliquely mounted above the support table. The handle is rotated to drive the rotating frame to rotate, so that the opening degree of the baffle is controlled to accurately adjust the feeding amount. In the process, the rotating frame synchronously drives the material guiding plate, the first dust blocking plate and the second dust blocking plate to cooperatively act through the connecting arm, and dynamic matching of the dust suppression structure and the discharging state is achieved. The inclination angle of the material guide plate is automatically adjusted according to the feeding amount, material impact is effectively relieved, and powder flying is restrained from the source; the dust blocking plate set is adjusted in a self-adaptive mode according to the angle of the material guiding plate, so that a reasonable distance between the air suction cover and falling materials is kept, and meanwhile diffused dust is efficiently collected. According to the linkage system, while the feeding efficiency is guaranteed, dust diffusion is remarkably reduced, the working environment is improved, raw material waste is reduced, and operation safety and overall coordination are improved.

The invention discloses an environment-friendly recycled plastic smashing production line, and relates to the technical field of plastic smashing, the environment-friendly recycled plastic smashing production line comprises a smashing machine, a spiral feeder and a cleaning pool, the smashing machine comprises a smashing chamber, a feeding hopper fixed to the top of the smashing chamber and two sets of smashing rollers rotationally arranged in the smashing chamber, and a pre-smashing mechanism is arranged at the top of the feeding hopper; by means of the designed pre-smashing mechanism, plastic with the large size entering the smashing chamber to be smashed can be cut into plastic with the small size in advance in the using process, the plastic is transversely cut off left and right through a saw blade, and the plastic is transversely cut off front and back through a cutter; according to the plastic crusher, plastic with a large size is cut into plastic with a small size, the plastic enters the crushing chamber and is conveniently crushed through the two groups of crushing rollers, the plastic crushing efficiency of the crusher is improved, and then the efficiency of the whole production line is improved.

The present invention discloses a bionic robot fish capable of underwater sampling, and relates to the technical field of underwater sampling, including a bionic robot fish body, the bionic robot fish body including a fin plate, a propeller and an image collector, the image collector being arranged at the front end of the bionic robot fish body, an operating cavity being provided inside the bionic robot fish body, a buffer component being arranged inside the operating cavity, and the buffer component including two groups of first springs symmetrically fixedly connected inside the operating cavity. The descent of the bionic robot fish body can be buffered by the compressed first spring, wherein the impact of the bionic robot fish body on the bottom sand and gravel after the descent can be reduced, and in addition, the contact range between the bionic robot fish body and the bottom sand and gravel can be reduced by inserting a contact block into the sand and gravel, thereby reducing the diffusion of sand and gravel, avoiding the influence of the diffused sand and gravel on the image acquisition of the image collector, and improving the acquisition efficiency of the image collector.

The utility model discloses a cutting device for glass fiber board production, which belongs to the technical field of glass fiber board production equipment and comprises a cutting support box for supporting a glass fiber board, and the inner top wall of the cutting support box is communicated with an air outlet box for dust to enter during glass fiber board processing. Cross-shaped grooves used for sliding are formed in the two sides of the interior of the air outlet box, springs are connected to the inner bottom walls of the two cross-shaped grooves, one ends of the springs are connected with cross-shaped plates, the cross-shaped plates are arranged in the cross-shaped grooves in a sliding mode, and second filter plate frames used for supporting are installed on the peripheries of the cross-shaped plates. According to the cutting device for glass fiber board production, the dust treatment capacity can be improved, the situation that dust pervades in a workshop is reduced, the health of operators is guaranteed, normal operation of equipment is guaranteed, tool abrasion is reduced, and the cutting precision and the product quality are improved.

The invention provides an environment-friendly building construction cutting device which comprises a base, a driving motor is fixedly connected to the upper end of the base, a second supporting arm is rotatably connected to the output end of the driving motor, a first supporting arm is rotatably connected to the other end of the second supporting arm, and rotating shafts are arranged at the two ends of the first supporting arm; the output end of the driving motor and the rotating shaft are both provided with belt wheels, the output end of the driving motor is fixedly connected with the belt wheels, the rotating shaft is rotatably connected with the belt wheels, the adjacent belt wheels are provided with the same transmission belt, the rotating shaft far away from the driving motor is rotatably connected with a cutter, and the cutter is fixedly connected with the adjacent belt wheels; a second handle is arranged on one side of the cutter, a rolling mechanism is rotationally connected to the lower portion of the second handle, and a rolling wheel is arranged on the lower portion of the rolling mechanism; a dirt collecting box is arranged on the side wall of the middle of the base in a drawing mode. The supporting arm is arranged, so that the obtaining range of the cutter is enlarged.

The invention relates to the field of photoelectric detectors, in particular to a vertical germanium-silicon avalanche photoelectric detector and a preparation method thereof. The silicon-on-insulator structure sequentially comprises a silicon-on-insulator substrate, an intrinsic silicon layer, an intrinsic germanium layer and a P-type germanium layer from bottom to top, the intrinsic silicon layer comprises an intrinsic multiplication layer; a P-type silicon charge layer is arranged at the top of the upper surface of the intrinsic multiplication layer; the P-type silicon charge layer is provided with a P-type silicon shielding ring layer along the circumferential direction; the aluminum oxide layer coats the upper surface of the silicon-on-insulator substrate, the intrinsic silicon layer, the intrinsic germanium layer and the P-type germanium layer; a spin-coating dielectric layer is arranged on the outer surface of the aluminum oxide layer; first metal electrodes are respectively arranged at two ends of the upper surface of the silicon-on-insulator substrate; according to the invention, the dark current is reduced to nanoampere magnitude, the diffusion effect of doped elements is reduced, the production cost is reduced, and the large-scale array layout of the device is facilitated.

The utility model discloses a simple animal smoking model modeling device for experiment, which belongs to the technical field of smoke toxicity research, and comprises an air pump and a smoke box, the opening part of the smoke box is hinged with a first sealing door, the top of the smoke box is symmetrically provided with ventilation openings, and the first sealing door is hinged with a second sealing door. A smoke sealing box is fixedly connected to the side, away from the sucking pump, of the smoke burning box, a second sealing door is hinged to the opening portion of the smoke sealing box, an insertion hole connected with an inner cavity of the smoke burning box in a communicating mode is formed in the inner side of the smoke sealing box, and a smoke particle concentration detector and a fan are installed on the top wall of the inner cavity of the smoke burning box. A carbon tank and a water storage bottle are installed between the smoke burning box and the sucking pump, the simple healthy environment-friendly device is additionally arranged, the health of an experimenter is facilitated, environment smoke diffusion is relieved, and the box body continuously enters the fresh oxygen and simulates the animal smoking state by increasing the negative pressure in the simple smoke burning box.

The invention discloses an ultrasonic metering device, which belongs to the technical field of metering meters and solves the problem that the existing ultrasonic metering device cannot meet the accuracy requirements of small flow measurement of household gas meters. The ultrasonic metering device of the invention comprises a shell and a transducer arranged on the shell, wherein a metering channel for fluid to pass through is arranged in the shell, and the shell forms an inlet section and a measuring section along the flow direction of the fluid, and the transducer comprises a transmitting vibrator and a receiving vibrator, wherein the transmitting vibrator and the receiving vibrator are installed on the same side of the measuring section so that the propagation path of the ultrasonic wave is V-shaped, the flow area of ​​the inlet section is S1, and the flow area of ​​the measuring section is S2, wherein S2<S1. The surface velocity of the fluid when flowing through the measuring section is increased, the flight time difference during ultrasonic measurement is increased, and the measurement accuracy is improved, especially the measurement accuracy requirements of small flow conditions are met.

The invention provides an epitaxial method for improving the width of a transition region of a double-layer low-resistance silicon epitaxial wafer of an overweight B-doped substrate and the epitaxial wafer obtained by the epitaxial method. The method mainly comprises the step of sequentially arranging a P-type epitaxial inner layer, an N-type buffer layer and a P-type epitaxial outer layer on the B-doped substrate. The method has the advantages that compared with an existing direct epitaxial process, the phenomenon that impurities such as B in the overweight B-doped substrate are diffused to the epitaxial layer can be remarkably reduced by optimizing the epitaxial structure and the process design, and the electrical parameter stability of the epitaxial layer is improved; compared with a traditional epitaxial scheme adopting a P-type buffer layer or an intrinsic Si buffer layer, the epitaxial structure has the advantages that the width of the transition region is greatly reduced, the transition region is steeped, and the voltage resistance and the electrical parameter consistency of the component are improved.

The utility model discloses a kind of anti-fogging guide wheels, belong to wire cutting equipment field.The anti-fogging guide wheel includes: bearing seat, guide wheel and anti-fogging outer sleeve, guide wheel and anti-fogging outer sleeve are installed in bearing seat, anti-fogging outer sleeve is set in guide wheel, for making cutting fluid on guide wheel splash to anti-fogging outer sleeve.The utility model makes cutting fluid on guide wheel be splashed to anti-fogging outer sleeve and gather, reduce atomization diffusion situation, solve the problem that guide wheel of prior art does not prevent and control cutting fluid atomization diffusion.

The utility model discloses a storage bin with a feed inlet capable of preventing dust from diffusing, which belongs to the technical field of storage bins and is technically characterized by comprising a feeding component, an absorbing component and a driving component. According to the material storage device, when materials are stored, the materials can be put into the storage barrel through the hollow box A, and due to the fact that dust may diffuse in the putting period, the driving assembly can be driven to drive the absorption assembly to operate, and then the dust in the hollow box A can be absorbed or discharged at a fixed point so as to facilitate follow-up treatment; after material feeding is finished, in order to further prevent dust from diffusing into air, a connecting arm can be connected with a screw rod, then a driving assembly can be operated, and then a sealing cover plate and the connecting arm can be driven to rotate together; therefore, the dust in the hollow box A can be prevented from diffusing into the air through the input pipe, and the dust can be further prevented from diffusing.

The invention relates to the technical field of metallurgical casting, and discloses a wear-resistant cast steel preparation method which comprises the following specific steps: step 1, smelting; step 2, detection: detecting the component content of the matrix alloy liquid; step 3, pouring: cooling the matrix alloy liquid to 1250-1350 DEG C, adding an alterant, heating to 1400-1480 DEG C, pouring into a mold cavity, opening the mold after the molten liquid is completely solidified, and cooling to room temperature to obtain a cast steel blank; and 4, heat treatment is conducted, and the wear-resistant steel casting is obtained. According to the preparation method, the diffusivity of carbon atoms in the matrix alloy liquid is reduced, precipitation of carbides is inhibited, meanwhile, the content of carbon and manganese is increased, the work hardening capacity of the steel casting can be improved, a high-toughness austenite structure can be kept, and the steel casting has good wear resistance during use; a traditional method of heating and then carrying out water toughening treatment is replaced by a means of quenching by waste heat after casting, so that the process can be simplified, energy can be saved, and the production period can be shortened.

The invention relates to the technical field of building material manufacturing, and discloses a building waste regenerated brick manufacturing device which comprises a processing box, a crushing part is installed on the processing box and used for automatically crushing building waste, a manufacturing part is arranged on the processing box, the crushed building waste can directly enter a smashing part through a material control part, and the manufacturing part is arranged on the processing box. Continuous automatic operation is achieved, the operation process is simplified, the whole regenerated brick manufacturing process is more convenient and efficient, transportation and manpower burden is reduced through process integration, the multiple processes of crushing, weighing, material controlling, smashing, mixing and the like are integrated in one device, the construction waste is mixed and pulped from feeding to final mixing, and the production efficiency is greatly improved. Multiple times of transportation among different machines are not needed, the processing flow is greatly shortened, the production efficiency is improved, the frequency of manual supervision and material transportation is reduced, the labor cost and the labor intensity are reduced, and meanwhile material loss and pollution possibly caused by multiple times of transportation are avoided.

The application provides a preparation method of a single crystal thin film with low defects, and at least comprises the following steps: step S1, providing a substrate and placing the substrate in a reaction cavity; the pressure in the reaction cavity is less than 20 tor, and the process temperature of the substrate is lower than 900 DEG C; step S2, introducing a first deposition gas into the reaction cavity to form an N-type single crystal thin film on the surface of the substrate; the first deposition gas comprises a raw material gas and an N-type doping gas; step S3, switching to introduce a second deposition gas into the reaction cavity to form a P-type single crystal thin film on the surface of the N-type single crystal thin film; the second deposition gas comprises a raw material gas and a P-type doping gas; and the raw material gas is a silicon source precursor or a germanium source precursor. The preparation method can reduce the defects of the single crystal thin film and improve the film quality.

The utility model discloses a needle warming moxibustion device which comprises a moxibustion tank of a semicircular tank body structure, an opening is formed in the upper end of the moxibustion tank, a mounting frame is connected to the upper end of the moxibustion tank, and the moxibustion tank and the mounting frame form a main external structure of the needle warming moxibustion device. A base is installed at the bottom end of the moxibustion tank, and moxibustion holes are evenly formed in the base. According to the needle warming moxibustion device, through installation of the moxibustion tank and the installation frame, conditions are provided for a regulation and control space of the placement height of a moxa stick, the moxa stick is clamped by a limiting sleeve arranged in the installation frame and anti-skid sleeve teeth arranged in the installation frame, and the anti-skid sleeve teeth are inserted into and attached to the surface of the moxa stick along with the moxa stick, so that the moxa stick is fixed to the height position in the moxibustion tank; the moxibustion pot can well fix moxa sticks and moxibustion parts in the moxibustion applying period, the moxa sticks are prevented from shaking or shifting in the combustion process, therefore, the accuracy and stability of moxibustion are guaranteed, and the risk of potential safety hazards such as fire disasters caused by falling of the moxa sticks is reduced.

The blanking dustproof structure comprises a blanking hopper, a stock bin is arranged below the blanking hopper, a plurality of blanking openings are formed in the stock bin at intervals in the length direction of the stock bin, heightening walls are arranged at the positions, on the two sides of the blanking openings, above the stock bin, and automatic reset plates are hinged to the upper portions of the heightening walls. The tops of the automatic reset plates on the two sides are closed, the blanking hopper enters the position between the two automatic reset plates from the side face and opens the automatic reset plates, and materials fall into the stock bin from the blanking opening. According to the utility model, the heightening walls are arranged on the two sides of the stock bin, so that materials are effectively prevented from being thrown during the reciprocating motion of the blanking hopper. And an automatic reset plate is arranged on the heightening wall, so that when the blanking hopper carries out blanking, the periphery of the blanking hopper can be effectively shielded, and the phenomena of material splashing and dust diffusion are obviously reduced. A plurality of independent automatic reset plates are adopted, during blanking operation, the blanking hopper only needs to open the automatic reset plates at the corresponding positions, the automatic reset plates at the other positions are still closed, and dust can be prevented from flying to the maximum extent.

This application discloses a signal transmission method and apparatus, a device, and a storage medium and belongs to the field of communication technologies. The signal transmission method in the embodiments of this application includes: converting, by a first communication device, a first signal into a time-frequency domain to obtain a second signal; and performing, by the first communication device, windowing on the second signal in the time-frequency domain, where the first communication device includes a transmit end of the first signal and / or a receive end of the first signal; in a case that the first communication device is the transmit end of the first signal, the first signal is a signal in a delay-Doppler domain, and the second signal obtained through windowing is used for being converted from the time-frequency domain to a time domain; and in a case that the first communication device is the receive end of the first signal, the first signal is a signal in the time domain, and the second signal obtained through windowing is used for being converted from the time-frequency domain to the delay-Doppler domain.

The invention discloses a polybenzocarbazole derivative as well as a preparation method and application thereof, the polybenzocarbazole derivative has a structure as shown in a formula (I), and Ar is an aromatic group; the linker is selected from one of straight-chain alkyl, phenyl or biphenyl with the carbon atom number of 2-8; n is the number of repetitive units and ranges from 5 to 1000. A repeating unit adopted by the polybenzocarbazole derivative is a conjugated unit composed of the benzocarbazole derivative, phenyl and thienyl, and compared with a small-molecule self-assembly material, the polybenzocarbazole derivative shows good hole transport capacity, and the hole transport efficiency is improved. And due to the excellent characteristics in the aspects of conductivity and wettability on a conductive substrate, the material has inclusivity to the layer thickness, has good photo-thermal stability, and lays a good foundation for commercial application of solar cell modules. # imgabs0 #

This utility model discloses a flexible LCD structure. The flexible substrate adopts a sandwich structure of a double-layer TAC thin film layer sandwiching a PVA polarizing film. By introducing the PVA polarizing film into the flexible substrate, the overall thickness of the flexible LCD structure is reduced to less than 0.25mm, thus reducing the thickness of the product. The nano-silver film is printed on the flexible substrate by relief printing, which does not require etching, reduces acid and alkali emissions, and has lower resistivity. The spacers are coated on the first PI layer by photolithography, so they will not move when bent. The spacing in the first region at the center is small, while the spacing in the second regions on both sides is large, which strengthens the bending support force in the center of the flexible LCD when bent. In the center region with high stress, the spacing distance is reduced and the density of the spacers 7 is increased, ensuring the uniformity of cell thickness under bending.

The invention relates to a heat treatment method of an impeller. A heat treatment method of an impeller comprises the following steps that solution treatment is conducted on the welded impeller, the impeller is heated to 1020-1060 DEG C under the vacuum condition, heat preservation is conducted, and then the impeller is cooled to 50-60 DEG C and discharged out of a furnace; the impeller subjected to solution treatment is subjected to high-temperature aging treatment, heated to 730-780 DEG C, subjected to heat preservation and then subjected to oil cooling to the room temperature; and low-temperature aging treatment is conducted on the impeller subjected to high-temperature aging treatment, after the impeller is heated to 590-635 DEG C, heat preservation is conducted, the impeller is air-cooled to the room temperature, and low-temperature aging treatment is repeatedly conducted on the treated impeller. Optimization and improvement are carried out on the basis of solution treatment and aging treatment of a traditional heat treatment process, the solution treatment is carried out under the vacuum condition, degassing treatment is carried out, gas containing hydrogen, oxygen, nitrogen and other elements at the weld joint position is effectively reduced, and the hydrogen corrosion resistance and low temperature resistance of the weld joint position are effectively improved.

A bondless phase-order tracking method based on deep time-frequency refinement includes: 1) constructing several non-stationary simulated vibration signals; 2) constructing an ideal time-frequency binary mask; 3) constructing a multi-scale one-dimensional complex-valued convolution module to perform generalized time-frequency transformation on the non-stationary simulated vibration signals to obtain an initial two-dimensional time-frequency representation; 4) constructing a deep time-frequency refinement model, using the initial two-dimensional time-frequency representation as input and the ideal time-frequency binary mask as supervision labels to construct a dataset; 5) inputting the initial two-dimensional time-frequency representation into the deep time-frequency refinement model to obtain prediction data, and back-optimizing the deep time-frequency refinement model based on a loss function until a trained deep time-frequency refinement model is obtained; 6) acquiring one-dimensional vibration signals during the actual operation of rotating machinery and inputting them into the trained deep time-frequency refinement model to obtain a refined time-frequency representation, thereby obtaining the order tracking result. This invention provides a more stable and efficient signal analysis method.

The utility model discloses a moxa-moxibustion box convenient to replace moxa sticks, and relates to the technical field of moxa-moxibustion boxes, the moxa-moxibustion box comprises a moxa-moxibustion box, the bottom end of the moxa-moxibustion box is detachably provided with a bearing base plate, the bottom end of one side edge of the moxa-moxibustion box is fixedly provided with a plug pin plate, and the plug pin plate is internally provided with a plug pin groove; a box body limiting groove is formed in the bearing base plate, and a plug pin block is fixedly installed at the top end of the edge of one side of the plug pin groove. The moxibustion box and the bearing base plate are arranged to be separated and combined, the moxibustion box is directly inserted into a box body limiting groove, at the moment, a plug pin block is directly inserted into a plug pin groove in a plug pin disc to complete splicing, sealing use can be achieved, when moxa sticks need to be replaced, the bearing base plate is directly taken down, and burning ash can be stored in the box body limiting groove; and the heat insulation protection pad is arranged at the bottom end of the bearing base plate, so that the body of a treatment person can be prevented from being scalded, and a certain protection effect is achieved.