37results about How to "Less stringent requirements" patented technology

The application belongs to the technical field of radar signal processing and imaging, and provides a differential coupling single-frequency time-varying low-quantization imaging method, which comprises receiving a SAR echo signal, constructing a single-frequency time-varying threshold signal, single-bit quantization processing of a reference channel, single-bit quantization processing of a phase shift channel, double-channel data fusion and harmonic cancellation, and imaging processing based on a synthesized signal. The application effectively reduces the quantization noise base and improves the detection capability of a SAR system on weak targets under the premise of not significantly increasing the hardware cost.

The invention discloses an efficient and low-cost production method of thin-specification and high-grade non-oriented silicon steel. The production method comprises the steps that the initial rolling temperature of hot rolling and finish rolling is larger than or equal to 950 DEG C, the finish rolling temperature is (830-880) + / -15 DEG C, and the coiling temperature is (600-650) + / -15 DEG C; acid continuous rolling, wherein a multi-rack acid continuous rolling unit is adopted for acid pickling and multi-pass cold rolling; normalizing a rolled hard board, wherein the normalizing temperature is (850-1000) + / -10 DEG C, and the tension in a normalizing furnace is 8-10N / mm < 2 >; performing single-stand finish cold rolling: performing finish cold rolling by adopting a single-stand rolling mill; and annealing, wherein the annealing temperature is 850-1050 DEG C, and a finished product with the thickness of (0.15-0.50) + / -0.003 mm is obtained. A specific process combination of normalizing after obtaining a rolled hard plate through acid continuous rolling and then carrying out single-rack finish cold rolling is adopted, so that the existing hot-rolled plate normalizing technology is replaced, and the unification of high efficiency, low cost and high quality is achieved.

This invention provides a method for identifying the authenticity of wheat flour based on the fusion of Raman and near-infrared spectroscopy, belonging to the field of wheat flour authenticity identification technology. The method includes: acquiring Raman and near-infrared spectral data of the wheat flour sample to be tested, and preprocessing them separately; constructing and training a fusion detection model, which includes a data-level fusion module, a feature-level fusion module, and a decision-level fusion module; the data-level fusion module generates full-spectrum fusion data; the feature-level fusion module concatenates core features into a comprehensive feature set; the decision-level fusion module inputs the comprehensive feature set into a hybrid model; and the trained fusion detection model processes the comprehensive feature set to output the authenticity identification result of the wheat flour sample to be tested. This invention, through a three-level spectral fusion architecture and a dynamic adaptive adversarial mechanism, can effectively achieve high-precision and high-robust identification of wheat flour authenticity.

This invention relates to the preparation and application of silicon-carbon anode materials, and discloses a silicon-carbon anode material modified with lithium phosphide nanoparticles, its preparation method, and a secondary battery. The material has a core-shell structure, with the core comprising porous carbon and lithium phosphide nanoparticles and silicon nanoparticles generated in situ within the micropores of the porous carbon; the shell comprises a composite coating layer composed of amorphous carbon and carbon nanotubes; silicon accounts for 45-65 wt% of the modified silicon-carbon anode material by mass, and the P / Si molar ratio of the lithium phosphide nanoparticles to the silicon nanoparticles is 2:98~30:70. A small amount of phosphorus source is first deposited in the porous carbon micropores, followed by lithiation treatment to convert the phosphorus in the porous carbon into lithium phosphide nanoparticles, then a second deposition of silicon nanoparticles, and finally overall carbon coating. This invention's modified silicon-carbon anode material improves the problem of rapid impedance increase in the low-charge range of silicon-carbon anode materials, significantly enhancing the user experience.

This invention discloses a high-precision three-dimensional deformation extraction method using multi-track InSAR, comprising: acquiring multi-track LOS-direction deformation; establishing a set of equations relating LOS-direction deformation to three-dimensional deformation, and establishing a set of equations relating LOS-direction deformation to two-dimensional deformation; obtaining three-dimensional deformation, as well as vertical and east-west deformation; establishing three-dimensional and two-dimensional deformation error propagation models; establishing an additional systematic error propagation model; establishing an objective function and adding regularization constraints to the objective function; obtaining an objective function matrix based on the objective function with constraints and the established error propagation model; obtaining the LOS-direction deformation error that satisfies the minimum value of the objective function based on the objective function matrix; substituting the LOS-direction deformation error into the three-dimensional and two-dimensional deformation error propagation models to obtain the three-dimensional deformation error; and obtaining the three-dimensional deformation result based on the three-dimensional deformation error. This method achieves the goal of improving the accuracy of three-dimensional deformation, especially significantly improving the accuracy of north-south deformation.

The utility model belongs to furniture connecting equipment technical field provides a kind of connecting structure for children room non-standard plate, including first connecting piece and second connecting piece. First connecting piece has hollow accommodating cavity, one end is provided with the jack hole being communicated with accommodating cavity, and accommodating cavity includes first accommodating section, and the radial dimension of first accommodating section gradually increases along the direction away from the one end of first connecting piece. Second connecting piece includes base portion and multiple elastic locking portions along the circumferential distribution of base portion, multiple locking portions can be gathered or expanded outward along the radial direction, and multiple locking portions can be moved into first accommodating section through jack hole. When locking portion is located in first accommodating section, locking portion keeps abutment with the inner wall of first accommodating section under the action of its own elasticity, to limit locking portion from first accommodating section. The connecting structure provided by the utility model has the advantages of strong adaptability, high safety, easy installation and neat appearance.

The invention discloses an offshore wind power jacket feeding structure and a grouting operation device. The offshore wind power jacket feeding structure comprises a feeding bin with a plurality of limiting plates, a first jacking assembly and at least two sliding rails with bag breaking cutters, the limiting plates are rotationally connected with the feeding bin, the ends of the two sliding rails are oppositely arranged in the feeding bin, and the first jacking assembly is connected with the sliding rails; when the limiting plates are located at the initial positions, the multiple limiting plates form a material guiding opening, and the bag breaking cutter is located at the adjacent ends of the two sliding rails. The grouting operation device comprises the offshore wind power jacket feeding structure. According to the feeding structure, a guiding channel is formed in the initial position, namely the non-bag-breaking stage, a guiding opening forms a guiding channel, automatic centering is achieved through the dead weight of the ton bag, the problem of falling point deviation caused by shaking in offshore operation is effectively solved, it is ensured that the bag breaking position is accurate, meanwhile, swinging of the ton bag is remarkably restrained, and operation safety is improved.

The application discloses a mass spectrum combined characterization qualitative and quantitative method and system of unified hidden state, relates to the cross field of analytical chemistry, bioinformatics and artificial intelligence data processing, the method obtains original data and instrument / method metadata containing LC-MS / MS, encodes to form a condition vector and is used for conditional modulation, constructs wave encoder and particle encoder, respectively Tokenizes continuous chromatographic signal and discrete fragment peak set into wave encoder and particle encoder to obtain wave representation and particle representation, realizes cross-modal interaction through wave-particle fusion module, forms unified hidden state or object-level unified hidden state set, adopts two-stage training of self-supervised pre-training and task fine-tuning, and applies conditional quantitative operator and qualitative operator to unified hidden state or object-level unified hidden state set in the inference stage, and parallelly outputs quantitative results and identification score / probability, and is suitable for end-to-end qualitative and quantitative analysis in DDA / DIA scene.

The utility model belongs to polytetrafluoroethylene film processing equipment technical field discloses a kind of polytetrafluoroethylene film intelligent heating setting equipment, the equipment includes rack, unwinding mechanism being arranged on rack, winding mechanism and the heating setting box between being located unwinding mechanism and winding mechanism, heating setting box is equipped with several guide rollers and heating roller, polytetrafluoroethylene film passes through guide roller and heating roller in turn, heating setting box is divided into multiple independent temperature control zones along the width direction of film, at least one heating unit and temperature sensor are equipped in each independent temperature control zone, equipment further includes film state detection unit being arranged before the entrance of heating setting box, and a controller, controller is connected with film state detection unit, the temperature sensor of each independent temperature control zone and heating unit respectively.The utility model can be adjusted setting temperature according to the real-time state of film, improve setting uniformity and product quality, enhance process adaptability.

The embodiment of the specification discloses a shape sensing method and system of a rope-driven continuum robot, at least two flexible sensors are fixed on a flexible skeleton in a spiral manner, the method comprises the following steps: establishing a general shape sensing model based on a constant curvature assumption; for any joint module: driving the joint module to a test shape, based on the general shape sensing model, solving the actual fixed position of the flexible sensor by using a numerical iteration method; driving the joint module to a working shape, based on the general shape sensing model and the actual fixed position of the flexible sensor, solving the output value of the flexible skeleton shape parameter by using a numerical iteration method; determining the robot shape based on the output value of the flexible skeleton shape parameter corresponding to each joint module. The application does not need to consider the fixing accuracy when fixing the flexible sensor, the model is established and calibrated, the change of the robot shape is accurately sensed, and the problems of high sensor installation accuracy and poor sensing reliability in the prior art are solved.

This invention belongs to the field of robotic grinding and polishing technology, and specifically discloses a robotic end-to-end grinding and polishing equipment and method for complex curved surface parts with rapid changeover. It includes a robot, a loading and unloading unit including loading and unloading trays, with workpieces mounted on quick-change fixtures, a loading and unloading gripping compensation unit including a compensation base, the compensation base having an internally hollow compensation protective cover, the compensation base and the compensation protective cover forming an air cavity, a compensation floating platform within the air cavity, one end of the compensation floating platform passing through the compensation protective cover and fixedly connected to a compensation flange, the compensation flange having a fixed loading and unloading compensation platform, the loading and unloading compensation platform being fixedly connected to the loading and unloading trays, and a belt grinder for rough and fine grinding of workpieces transferred by the robot. This invention, while ensuring high-precision machining consistency, greatly enhances the system's operational stability, process adaptability, and overall equipment lifespan.

This utility model discloses a forklift mast and forklift, including a mast body and a fork carriage. A plurality of first roller groups are provided between the fork carriage and the mast body for relative sliding in a vertical direction. These first roller groups are arranged side-by-side along the left-right direction of the fork carriage. Each first roller group includes multiple rollers disposed on the same side of the fork carriage and distributed vertically. The multiple rollers also include at least two second main rollers located between the first upper main roller and the first lower main roller. Furthermore, the multiple rollers also include at least one second side roller located between the first upper side roller and the first lower side roller. By increasing the number of rollers, this utility model improves the stress distribution on the rollers, thereby reducing the risk of roller failure due to overload and enhancing the overall stability between the fork carriage and the mast body.

This invention relates to the field of aero-engine testing technology, specifically to a sealing structure for a combustion chamber measuring device. It includes a sealing water-cooled base, a sliding plate slidably mounted on the upper surface of the base, a through hole for a test probe to pass through, an annular protrusion surrounding the through hole on the upper surface of the base, an annular mounting groove on the protrusion, and a sealing ring installed within the mounting groove. A guide groove is provided on the lower surface of the sliding plate. Limiting plates are fixedly connected to both sides of the sliding plate on the upper surface of the sealing water-cooled base. Several fixed shafts are fixedly connected to each of the two limiting plates, and limiting wheels are rotatably mounted on the fixed shafts. The limiting wheels vertically limit the sliding plate. By using the limiting wheels to roll downwards and press the sliding plate, the guide groove on the lower surface of the sliding plate and the annular protrusion on the sealing water-cooled base achieve precise alignment, resulting in uniform force on the sealing ring, minimal wear, and achieving a low-friction, high-reliability planar dynamic seal.

This utility model relates to the field of steel formwork installation technology and discloses a steel formwork positioning structure. The steel formwork has positioning components installed on all four sides, and fixing holes are provided on all four sides. Positioning pins are installed on one side in both the horizontal and vertical directions, and positioning holes are provided on the corresponding positions on the other side. Adjustment holes are provided next to the positioning holes in the vertical direction. This steel formwork positioning structure, through the design of concave-convex fits on the left and right sides and rotatable positioning pins, achieves rapid alignment and initial locking of the steel formwork in the left and right directions. The concave and convex designs form a natural guide channel, eliminating the need for precise manual calibration during assembly. The convex side can naturally slide in along the mating surface of the concave side, significantly reducing the difficulty of positioning alignment. Furthermore, after the pin passes through the positioning hole, the head is rotated to be arranged laterally, utilizing the characteristic that the head length is greater than the width of the positioning hole to lock into the hole, effectively preventing the formwork from shifting before subsequent pin fixing.

The invention provides a folding multi-satellite distributor and an unfolding and releasing method thereof, and belongs to the technical field of spacecraft launching. The foldable multi-star distributor comprises a plurality of single distributor bodies, distributor connecting columns and distributor unfolding arms. In the launching process, the multiple single distributors are longitudinally stacked and pressed through the distributor connecting columns to form a compact overall stacked body, folding of the layout area is achieved, and the space utilization rate in the fairing is increased. After orbit injection, the distributor unfolding arms drive the adjacent single distributors to generate spatial dislocation unfolding, and unfolding bodies for separation of the small satellites are formed. Through folding and unfolding of the distributor, on the premise that the size of the fairing is not increased, the arrangement area of the small satellites and the single-rocket launching number are multiplied, the carrying capacity is improved, and the single-rocket multi-satellite networking launching device is particularly suitable for one-rocket multi-satellite networking launching.

The utility model relates to an anastomosis instrument which comprises a head, a waist and a tail. The head portion is in a hollow pipe shape, one end of the head portion can be connected with a first pipeline, the waist portion is hollow, arranged between the head portion and the tail portion and connected with the other end of the head portion and one end of the tail portion respectively, the waist portion is formed by inwards retracting the other end of the head portion, and the other end of the tail portion is connected with the inner wall of a second pipeline in a matched mode. The inner anti-disengaging piece makes contact with the outer wall of the first pipeline and applies anti-disengaging force to the first pipeline. According to the anastomosis instrument, the direct and stable instrument is provided, due to the arrangement of the waist part, the first pipeline and the second pipeline can be directly and stably anastomosed, liquid backflow and overflow are avoided, suture of a doctor is avoided, the difficulty of pipeline anastomosis is greatly reduced, meanwhile, the inner anti-disengaging piece can effectively prevent the first pipeline from shifting or disengaging, and the anastomosis effect is improved. And the anastomosis stability and safety are greatly improved.

This invention discloses a DC-DC converter and control method based on coupled inductors, comprising a capacitor connected in parallel across the low-voltage side; the capacitor is also connected in parallel across the high-voltage side; the coupled inductor module includes a first winding and a second winding mounted on the same magnetic core, one end of the first winding being connected to the midpoint of a first switch and a second switch, and one end of the second winding being connected to the midpoint of a third switch and a fourth switch; the other ends of the first winding and the second winding are connected to form a common connection point, which is connected to a reference potential terminal on the high-voltage side; the high-voltage side transmits electrical energy to the high-voltage side through the first bridge arm, the second bridge arm, and the coupled inductor module; this invention winds two inductors on the same magnetic core to form mutual inductance, replacing two independent filter inductors or energy storage inductors in traditional circuits with coupled inductors, significantly reducing the size and weight of magnetic devices and increasing power density.

A method for refining a nicorandil intermediate, the reaction system for preparing N-(2-hydroxyethyl)nicotinamide is slowly cooled to 50 DEG C to 60 DEG C, without filtration, aprotic solvent is directly added to the reaction liquid while stirring, the solid separated out in the reaction is stirred and dissolved; wherein, the volume ratio of the aprotic solvent to the reaction system is controlled to be 0.6 to 6:1; the reaction liquid system of the dissolved solution in step 1) is continuously stirred and cooled, when the temperature is cooled to below 40 DEG C, white solid begins to separate out in the solution; then continuous stirring and temperature adjustment is carried out, and the solution is incubated and stirred at 20 to 30 DEG C, and the intermediate N-(2-hydroxyethyl)nicotinamide is obtained after filtration. In the present application, the reaction liquid is crystallized once, the product purity can reach more than 98%, the reaction yield is more than 93%, the operation is simple, the high-temperature distillation process is avoided, the yield is high, the production cost is low, the process is stable, and it is suitable for industrial production.

A composite rhythmic slow rocking device and massage chair include a first rocking component and a second rocking component. The output ends of the first and second rocking components are respectively connected to the two ends of a platform, and the axis of the output end of the first rocking component forms a first axis, while the axis of the output end of the second rocking component forms a second axis. The first and second rocking components can be controlled independently or collaboratively to achieve various movement modes such as slow rocking, rhythmic rocking, and composite rocking, meeting users' needs for diverse relaxation experiences and solving the problem of poor experience caused by single function or complex structure in existing technologies. In addition, the design of the first and second rocking components as mutual rotation fulcrums eliminates the need for separate support mechanisms for each movement mode, simplifying the overall mechanical structure and reducing manufacturing difficulty and cost.

The invention provides an organic-inorganic composite lithium supplement agent and a preparation method thereof, and relates to the technical field of lithium batteries. The organic-inorganic composite lithium supplement agent comprises an inorganic lithium supplement agent and an organic lithium supplement agent; wherein the organic lithium supplement agent is coated on the surface of the inorganic lithium supplement agent to form a coating layer. According to the structure, water and oxygen are effectively isolated through the organic coating layer, and the problem that inorganic materials easily absorb water and lose efficacy is solved; and meanwhile, the inorganic core is used for providing electric conduction and catalytic action, so that the reaction kinetics and lithium supplement efficiency of the organic material are improved. And an organic decomposition product can form a film in situ, and an electrolyte side reaction caused by inorganic residues is inhibited, so that high stability and high electrochemical performance are both considered.

The application belongs to the technical field of information security, and discloses a kind of source joint coding encryption method, device, equipment and storage medium, the method includes: according to the preset security threshold and the number of encoders, the number of source security levels is calculated;According to the source of the lowest security level, multiple-party secret sharing data is generated;Obtain multiple encoder sets without encoders E i And the number of encoders is greater than the preset security threshold, the decryption level of each encoder set is calculated and put into an array;According to the source of multiple security levels and multiple decryption levels, source encryption data is generated;Multiple source encryption data is concatenated as source joint coding encryption data M_E i ;After the concatenation of multiple-party secret sharing data and source joint coding encryption data M_E i , encryption is carried out using a key algorithm, channel data is obtained and input into the corresponding channel of encoder E i . The application can improve the security of the communication system.

The invention provides a high-reliability electric signal vertical lead-out method of a vacuum sealing MEMS chip, which comprises the following steps: S1, carrying out metal layer or dielectric layer deposition, photoetching and etching on the bottom surface of a vertical lead layer of the MEMS chip to form a bonding pattern layer; wherein the vertical lead layer is a TGV layer or a TSV layer; s2, performing alignment eutectic bonding sealing packaging on the silicon wafer containing the silicon microstructure and the bonding pattern layer; wherein a sealing support sheet is arranged at the bottom of the silicon wafer; and S3, depositing a metal film layer on the top surface of the bonded vertical lead layer, and forming an electrode bonding pad through photoetching and wet etching, so that the electrode bonding pad is conducted with a silicon lead of the silicon wafer. A graphical bonding sealing process is combined with the TSV or the TGV containing the metallized filler with good conductivity, so that the air tightness process requirements of the metallized filled TGV and the TSV are favorably relaxed, and a process scheme which gives consideration to the high vacuum sealing performance of the MEMS chip and the high-reliability vertical extraction of an electric signal is provided.

This invention provides a quantum computing method based on fuzzy processing, relating to the field of quantum computing technology. The method includes: inputting the fuzzy quantum state into a quantum circuit containing at least one quantum logic gate operation to obtain an output quantum state; performing continuous weak measurements on the qubits during the operation of the quantum circuit to obtain imprecise error information; processing the imprecise error information based on fuzzy mathematics to obtain error estimation parameters; generating and applying feedback operations to the qubits based on the error estimation parameters to suppress errors; measuring the output quantum state and determining the output result according to a preset probability threshold interval, where the probability threshold interval is used to distinguish different output categories. This invention can also be further combined with quantum error correction to achieve long-depth quantum computing using error correction methods, realizing effective quantum state stability control.

The invention discloses a non-contact sleep staging monitoring method based on breathing voiceprint time sequence feature and multi-source information fusion, which comprises the following steps: audio data acquisition and adaptive preprocessing, breathing event detection and time sequence slicing processing, multi-dimensional acoustic feature extraction and individual physiological baseline data fusion. And constructing a deep learning model with a long time sequence perception capability, and carrying out classification judgment and smoothing. The method is completely based on the audio signal, a user does not need to wear any equipment, the first night effect is eliminated, the compliance and sleep comfort of the user are greatly improved, and long-term and continuous sleep health monitoring becomes possible.

This invention discloses a method for element doping of a thin-film solar cell and its absorber layer, relating to the field of thin-film solar cell technology. By immersing the activated absorber layer in a salt solution of a predetermined dopant element and simultaneously applying an exogenous inducing variable, the predetermined element is doped. During the doping process, the diffusion of dopant ions into the grain boundaries and lattice interior of the absorber layer is promoted, ensuring that the element is not affected by the surface morphology, hydrophilicity / hydrophobicity, internal or edge structure of the absorber layer. This solves the problems of difficult-to-control element doping uniformity, poor process stability, and low effective doping activation rate in existing technologies. It achieves the goal of diffusive doping of p-type elements in the absorber layer with high doping uniformity, high doping activation rate, controllable doping process, and compatibility with existing processes.

The invention relates to the technical field of semiconductor preparation, in particular to film cutting equipment and a film cutting method. The film cutting equipment provided by the invention comprises a base table, a fixed seat and a cutting mechanism, the cutting mechanism comprises cutter bodies in one-to-one correspondence with the side edges of the base plate, one end of each cutter body can rotate relative to the base table, automatic cutting of the thin film can be achieved by controlling the cutter bodies to rotate, and meanwhile compared with a cutting mode of a traditional manual vertical flat pressing cutter, the cutting efficiency is greatly improved. Each cutting point can extrude the edge of the substrate in the rotating process of the cutter body, the cutting force is more concentrated, and the traditional vertical cutting is changed into scraping cutting, so that the cutting is smoother, and the cutting precision is improved; meanwhile, burrs generated by cutting can be reduced, and damage to the edge of the film is reduced.

This application discloses a unified latent state-based mass spectrometry joint characterization qualitative and quantitative method and system, involving the interdisciplinary fields of analytical chemistry, bioinformatics, and artificial intelligence data processing. The method acquires raw data from LC-MS / MS and instrument / method metadata, encodes it into conditional vectors, and uses them for conditional modulation. A wave encoder and a particle encoder are constructed, and continuous chromatographic signals and discrete fragment peak sets are tokenized and input into the wave encoder and particle encoder respectively to obtain wave and particle characterizations. Cross-modal interaction is achieved through a wave-particle fusion module to form a unified latent state or an object-level unified latent state set. A two-stage training process of self-supervised pre-training and task fine-tuning is employed. During the inference stage, conditional quantitative and qualitative operators are applied to the unified latent state or object-level unified latent state set, outputting quantitative results and identification scores / probabilities in parallel. This method is suitable for end-to-end qualitative and quantitative analysis in DDA / DIA scenarios.

This application discloses a time-series prediction method and a training method for a time-series prediction model. The method includes: acquiring time-series data, which contains N data points with temporal correlation, where N is a positive integer greater than 1; modifying the state parameters of an optical quantum circuit based on the time-series data; acquiring the quantum feature vector output by the optical quantum circuit based on the state parameters; decoding the quantum feature vector to obtain M prediction results corresponding to M consecutive time-step evolutions; acquiring the quantum feature vector output by the optical quantum circuit based on the state parameters includes: performing a spatial unitary transformation on the optical quantum information of each time step input to the optical quantum circuit through the spatial unit of the optical quantum circuit; delaying the optical quantum information of the M consecutive time steps through the delay unit of the optical quantum circuit; and sampling the output of the optical quantum circuit at each time step to obtain the quantum feature vector.

The invention relates to the technical field of ultrasonic water meters, in particular to an online meter calibration method based on an instantaneous flow method, which abandons the traditional method of depending on a high-precision electronic scale as a standard device, and realizes full-automatic calibration of an ultrasonic water meter by adopting the instantaneous flow method. Meanwhile, the problems that in the prior art, an ultrasonic water meter generally depends on a start-stop method or a reversing method and is difficult to be compatible with an instantaneous flow method, and accurate calibration can be achieved only through customized transformation are solved, and a calibration platform specially matched with the instantaneous flow method does not need to be customized again. The instantaneous flow method is successfully integrated on a traditional meter calibration table, the technical limitation of existing equipment is overcome, full-process automation from measurement to judgment is achieved, and meter calibration efficiency is remarkably improved. Meanwhile, the core requirement of the method lies in the stability of flow output, and the harsh requirement for the control time sequence and data reading synchronism of the meter calibration table is greatly lowered. Meanwhile, the invention further provides application of the method in the actual meter calibration process and an ultrasonic water meter calibration table.

The invention discloses an automatic feeding and discharging device for intelligent turning repair of railway wagon wheel sets, and belongs to the technical field of train wheel set turning repair auxiliary equipment. The rail mechanism is provided with a feeding and discharging position used for receiving a to-be-turned wheel pair or sending out a turned rear wheel pair, and a wheel pair handover position used for sending the to-be-turned wheel pair to turning machining equipment or receiving the turned rear wheel pair machined by the turning machining equipment; the at least one pair of protective sleeve automatic loading and unloading mechanisms are respectively used for installing a matched protective sleeve on the axle neck part on the corresponding side of the wheel pair to be subjected to turning repair or unloading the matched protective sleeve from the axle neck part on the corresponding side of the rear wheel pair subjected to turning repair; and the wheel pair transferring device can forward transfer the wheel pair to be subjected to turning repair at the loading and unloading position to sequentially pass through the station of the automatic protective sleeve loading and unloading mechanism and the wheel pair handover position, and reversely transfer the rear wheel pair subjected to turning repair at the wheel pair handover position to sequentially pass through the station of the automatic protective sleeve loading and unloading mechanism and the loading and unloading position. The device realizes full-automatic circulation of the wheel set and full-automatic loading and unloading of the protective sleeve.