3204 results about "Mechanical components" patented technology

The invention relates to the field of abrasion morphology determination and abrasion loss calculation, and discloses an abrasion morphology and contact stress analysis and prediction method and system based on a rough contact surface, a medium and equipment, and the method comprises the steps: constructing a dynamic contact model, and obtaining an accurate movement rule and a stress analysis result of a moving mechanical component; constructing a three-dimensional rough surface digital twinborn model conforming to an actual contact surface; establishing a contact stress field multi-physical field analysis model to obtain elastic deformation and a friction heat effect; based on the contact stress distribution and the local wear rate which are obtained in real time, carrying out dynamic reconstruction on the wear morphology, and establishing a nonlinear iteration relation between the wear loss and the contact stress distribution; determining an accurate boundary condition based on an accurate movement rule and a stress analysis result of the moving mechanical component, and constructing a failure criterion based on contact stress gradient mutation and surface roughness evolution; key parameters are calibrated through experiments, and a mapping relation database of wear rate-stress state-morphological characteristics is established so as to carry out friction wear analysis.

The invention relates to the technical field of electric drive transmission system service life prediction, and discloses an AI-based electric drive transmission system comprehensive service life prediction method, which comprises the following steps: acquiring electric drive system operation parameters and mechanical part degradation data; arranging the data into a system operation full-period input tensor and a component degradation full-period input tensor, and respectively extracting multi-order feature tensors through a bidirectional recurrent neural network and a gated time convolutional network; performing cross-modal fusion by using a cross attention fusion network in combination with physical constraints to obtain a system-component degradation fusion feature vector; and after dimension reduction, inputting a multi-layer perceptron network output life prediction value, and generating a residual service life interval with confidence in combination with historical cases. The method integrates multi-source data, realizes cross-domain feature dynamic association and physical constraint fusion, improves the precision and reliability of life prediction, is suitable for intelligent operation and maintenance of the electric drive system, and provides a scientific basis for equipment maintenance.

The invention relates to a data and physical dual-drive mechanical part low-cycle fatigue life prediction method, which comprises the following steps: S1, carrying out finite element analysis on a mechanical part, and determining the maximum stress and strain value of a dangerous part; s2, acquiring test data of low-cycle fatigue failure, designing and carrying out a low-cycle fatigue test of the mechanical part material test piece by taking stress and strain as input, and acquiring test stress, strain and low-cycle fatigue cycle test data; s3, physical knowledge of low-cycle fatigue failure is obtained, material low-cycle fatigue physical knowledge analysis is carried out in combination with stock data, and physical knowledge of fatigue life and stress is obtained; s4, establishing a physical information neural network model, and inputting test data and physical knowledge; and S5, carrying out low-cycle fatigue life prediction on multiple dangerous parts of the mechanical part. The minimum service life of the dangerous part is used as the service life of the mechanical part. The method can significantly improve the life prediction precision.

The invention relates to the technical field of mechanical part punching, in particular to a beam frame type automatic punching machine applied to photovoltaic frame machining, which comprises a public bottom plate, and a punching machine feeding mechanism, a punching mechanism, a waste recycling mechanism, a punching machine discharging mechanism and a discharging interval conveying mechanism are arranged on the public bottom plate; a feeding gripper in the punching machine feeding mechanism turns over a product by 90 degrees and conveys the product into the punching mechanism, and a discharging gripper in the punching machine discharging mechanism drives the product to rapidly avoid a punching machine base in a C-shaped track and then move into the discharging interval conveying mechanism. The overall structural design is ingenious, the punching machine is assembled in an up-and-down and left-and-right stacking mechanism mode, the equipment layout occupied size is small, transportation is convenient, the flow direction of photovoltaic frame products is improved, the defects that a traditional punching machine cannot automatically load and unload materials, and the production rhythm is slow are overcome, and the production efficiency is improved. And the stamping and transferring efficiency of the photovoltaic frame is improved.

A wearable device, such as a wearable ring device, configured to transition between multiple discrete ring sizes is described. For example, the wearable ring device may have an adjustable inner circumference and a rigid outer housing. The inner circumference may be adjusted to transition between multiple discrete ring sizes. For example, a wearable ring device may include a ring housing that exhibits a constant outer circumference, where mechanical components of the ring are configured to adjust at least a portion of an inner circumferential surface to transition the ring between the discrete sizes. The ability of the wearable device to transition between multiple discrete sizes may enable the wearable device to achieve a better fit on a user, thereby improving contact between one or more sensors of the wearable device and the skin of the user, leading to more accurate physiological data readings.

The invention relates to a negative-wear super-wear-resistant current-carrying friction pair material which is a conductive lubricating film which is constructed in situ and stably exists under a current-carrying friction condition, and the current-carrying friction pair material is composed of Ga-based liquid metal, a Mo coating and an Al alloy bolt. Through cooperation of friction pair materials, a friction interface reaction is adjusted to generate a conductive lubricating film, and excellent lubricating and wear-resisting properties are achieved; in a large voltage and current range, the average friction coefficient is always maintained to be 0.25 or below, the existence of the lubricating film enables the surface to present negative wear, and the average negative wear rate is 1.28 * 10 <-6 > mm < 3 > / Nm or above. The obtained material is suitable for application in the field of electric contact industry and provides lubrication and wear protection for the surfaces of mechanical parts.

The invention relates to the technical field of intelligent control, in particular to a dynamic shelf level intelligent scheduling system. The system comprises a goods shelf distribution module, a mechanical element friction optimization module, a goods gravity center shift evaluation module and a goods handling simulation module. Obtaining storage structure data, and carrying out dynamic shelf storage space detection to obtain dynamic shelf storage space data; obtaining cargo information; performing cargo shelf distribution simulation according to the cargo information and the dynamic shelf storage space data to obtain cargo shelf distribution data; performing electric push rod stroke anomaly detection according to the goods shelf distribution data to obtain electric push rod stroke anomaly data; based on the abnormal stroke data of the electric push rod, driving motor locked-rotor detection is carried out to obtain driving motor locked-rotor data; and performing mechanical element friction optimization according to the locked-rotor data of the driving motor to obtain element friction optimization data. The warehousing operation efficiency and the system operation stability are improved based on the intelligent control technology.

The invention discloses a mechanical part pre-deformation clamping process method based on simulation analysis, and relates to the technical field of mechanical manufacturing. The method comprises the following steps that S1, a design drawing, material characteristic parameters, blank size specifications and technical parameters of a clamp system of a to-be-machined part are collected; according to the method, an integrated simulation model of a part, blank and clamp system is constructed, blank key parameters and the constraint relation of all parts are fused, multi-field coupling simulation is combined, the theoretical deformation field pre-judgment precision is greatly improved, reliable data support is provided for pre-deformation design, a target compensation curved surface is generated through a geometric inversion algorithm, and the pre-deformation design precision is improved. By matching with a pre-deformation clamp with an adjusting mechanism, reverse pre-deformation is realized, differences of different batches of blanks are adapted, machining and rebound deformation are effectively counteracted, simulation and process parameters are corrected through a detection result by means of a closed-loop optimization mechanism, machining precision stability is guaranteed, trial cutting cost and rejection rate are reduced, and the method is suitable for machining of various easily-deformed parts.

The invention belongs to the field of desilting robots, and particularly discloses a suction type underground drainage pipeline intelligent desilting robot and a desilting method.The desilting robot is composed of an in-pipe integrated robot and an inspection well box; the in-pipe integrated robot comprises a hardware structure and a software module, the hardware structure comprises a mechanical assembly, a circuit assembly, a sediment breaking assembly, a sediment conveying assembly and a machine body, and the software module comprises a pipeline sediment intelligent diagnosis module. A drainage pipeline siltation diagnosis module based on a deep learning network is arranged in a deep learning development board to achieve siltation diagnosis, and a central instruction receiving and sending module is used for sending desilting operation instructions to a nail surface type electric hammer, a high-pressure water spray head, a siltation crushing cutter, a silt pumping pipe, a silt discharging pipe and a vacuum sewage suction pump. According to the invention, automatic and intelligent operation of siltation diagnosis and desilting of the underground drainage pipe network in a certain maintenance area can be realized, the efficiency is greatly improved, personnel do not need to enter the pipeline, and the danger is greatly reduced.

The invention relates to the field of vehicle driving motor control, and particularly discloses a wheel side driving motor working state control method and device, and the method comprises the steps: obtaining the instantaneous whole vehicle demand torque according to the real-time accelerator pedal opening degree and the real-time vehicle speed; according to the road gradient and the real-time vehicle speed, the whole vehicle demand torque is predicted; the minimum value of the instantaneous whole vehicle demand torque and the predicted whole vehicle demand torque is taken as the actual whole vehicle demand torque; and controlling the working state of the driving motor according to the actual vehicle demand torque. According to the method, unreasonable driving of a driver is restrained, the actual whole vehicle demand torque is determined by calculating and predicting the whole vehicle demand torque and combining the instantaneous whole vehicle demand torque, power demands of the vehicle under different road conditions and loads are matched, insufficient or excessive power is avoided, the vehicle runs more smoothly, the safety of vehicle driving is improved, and the driving safety of the vehicle is improved. Overload of vehicle mechanical parts is avoided, the service life of the vehicle mechanical parts is prolonged, the working state of the driving motor is reasonably controlled, and energy consumption and vehicle operation cost are reduced.

A hydraulic mechanical component strength testing apparatus and a testing method, relating to the technical field of mechanical component strength testing, for use in performing strength testing on mechanical components with different temperatures. The testing apparatus comprises a frame and a clamping assembly; the clamping assembly comprises two clamping plates and a clamping drive mechanism; a vertically-arranged hydraulic rod is arranged at the top of the frame; a placement platform fixedly connected to the bottom of the frame is arranged below the hydraulic rod; the two clamping plates are located above the placement platform; a placement seat for supporting a mechanical component is arranged between the two clamping plates; a hydraulic sensor for measuring the pressure borne by the placement seat is arranged between the placement seat and the placement platform; the placement platform is further provided with a display in signal connection with the hydraulic sensor; and the clamping plates are each provided with a heating assembly used for heating the mechanical component. The present invention can perform strength testing on mechanical components with different temperatures.

The invention relates to the field of machining and automatic control, in particular to a pressure-sensing precision mechanical part polishing brush system and method. Comprising the following steps: converting and processing pressure data to obtain processed pressure data; calculating the difference between the current pressure and the target pressure based on the processed pressure data, and mapping the target pressure into the path track; optimizing the path through the path optimization objective function and the constraint condition to obtain an optimized path; based on the optimized path, obtaining a torque variation; a path adjustment amount is obtained through the torque variation; and correcting the optimized path through the gain parameter and the path adjustment amount to obtain a corrected path. The problems that the relation between the motion trail of the brush and the contact pressure is not accurately processed, and the motion trail of the brush is difficult to accurately control are solved.

Disclosed herein are solid-liquid bi-phase lubricating devices that can include a cuboidal shaped stick with at-least one cylindrical or cuboidal shaped hollow core running through entire or partial length of the stick. The cuboidal shaped stick can include a solid polymer-based composite while the inner space is filled with a semi-fluid grease lubricant. The solid polymer-based composite can include one or more polymers, filler materials, corrosion inhibitors, plasticizers, and additives. The grease lubricant can include lithium, lithium-complex, aluminum-complex, calcium-sulphonate complex, bentone-thickened grease, and mixtures thereof and have an NLGI consistency grade≥1. The lubricating devices can be used for friction reduction of mechanical components involving two or more contacting surfaces in relative motion, such as a steel wheel flange-rail contact interface of transit and freight rail transport systems.

The invention belongs to the technical field of mechanical part surface finishing machining, and aims to solve the problem that traditional barreling finishing machining is difficult to meet the requirements for high precision and uniformity of a large wind power gear ring. The vertical local forced excitation polishing and grinding method for the large wind power gear ring comprises the following steps that a to-be-polished and ground section of the to-be-polished and ground large gear ring is placed in a polishing and grinding container filled with a machining medium; and a vibration excitation element in the machining medium is driven to perform combined motion of radial intermittent feeding motion, axial intermittent feeding motion and reciprocating linear motion, and is matched with circumferential intermittent rotary motion of the large gear ring, so that a locally forced particle flow field is formed in the machining medium, and gear surface finishing machining is performed on the large gear ring to be polished and ground. According to the large gear ring polishing and grinding device, intense exciting force can be applied to a certain specific tooth surface part of a large gear ring in a targeted mode, local polishing and grinding are conducted in a centralized mode, consistent polishing and grinding of different parts of the tooth surface of the large gear ring can be achieved in an all-around mode at a time, and the surface roughness of the large gear ring can be reduced.

Methods, systems, and devices for a charger device are described. The charger device may accommodate and charge wearable ring devices of varying sizes. For example, the charger device may include one or more mechanical components on or within a base of the charger device that help align and hold wearable ring devices of varying sizes against a charging component of the charger device to facilitate charging. The one or more mechanical components (e.g., springs, flaps, or other components) may apply a force to help position the wearable device firmly against the charger device to facilitate charging. Moreover, the mechanical components of the charger device may help orient the wearable device in a radial orientation which allows for a charging process (e.g., an inductive charging process) by aligning inductive charging components (e.g., coils) within the wearable device with the inductive charging components of the charger device.

The invention belongs to the field of mechanical part manufacturing, and particularly relates to a welding treatment device for mechanical part manufacturing and an operation method thereof.The welding treatment device comprises a base, a welding head is arranged at the top of the base, a first motor is fixedly connected to one side of the base, and the output end of the first motor extends into the base and is fixedly connected with a two-way lead screw; according to the welding treatment device for mechanical part manufacturing and the operation method of the welding treatment device, the circulating direction of gas can be adjusted by adjusting the position of the lantern ring, the gas can independently enter a pipe, the gas can be sprayed out from the bottom of the gas inlet pipeline, a leakage detecting agent at the welding position of the pipe is dried, and the leakage detecting effect is improved. Through guiding of the inclined face of the inner wall of the gas gathering ring, sprayed gas is more concentrated, through guiding of the two guiding plates, hot gas circulates downwards along the inclined faces of the guiding plates, through wrapping of the inner concave faces of the two baffles, the hot gas is prevented from being rapidly diffused, the retention time of the hot gas around a welding seam is prolonged, and the drying effect on the leakage detecting agent is better.

The invention discloses a chamfering machine for machining mechanical parts, and belongs to the technical field of chamfering machines, the chamfering machine for machining the mechanical parts comprises a fixed rack, and a sliding limiting mechanism is fixedly mounted in the center of the top of the fixed rack; a rotary limiting mechanism is fixedly mounted at the center of the top of the sliding limiting mechanism, a rotary feeding mechanism matched with the rotary limiting mechanism is further fixedly mounted at the top of the fixed rack, and two sets of symmetrically-arranged turning and chamfering mechanisms are slidably mounted on the two sides of the top of the sliding limiting mechanism correspondingly; a servo driving mechanism used for driving the two turning and chamfering mechanisms is installed at the bottom of the sliding limiting mechanism. According to the rotary feeding mechanism simple in design, the left feeding disc and the right feeding disc are controlled by the first servo motor to move, so that the conveying, machining pause and conveying and discharging processes are smoother, the machining pause time is shortened, and meanwhile the overall machining efficiency is improved.

The invention relates to the technical field of mechanical part machining, and particularly discloses a mechanical part machining device which comprises a working table, an auxiliary mechanism, a driving mechanism and a driving mechanism. The end face of the working table is fixedly connected with an L-shaped base, a motor is fixedly installed on the surface of the L-shaped base, and the output end of the motor is fixedly connected with a blade; the auxiliary mechanism is used for feeding workpieces when mechanical parts are cut, the auxiliary mechanism comprises an inclined groove formed in the end face of the workbench, a filter screen is installed in the inclined groove, and a fixed rail is arranged on the end face of the workbench. By arranging the sliding block, the fixed track, the screw rod and the first pressing plate, the screw rod can drive the first pressing plate to move by means of driving of threads, so that a metal plate is stabilized, it is ensured that the metal plate is not prone to loosening or shifting in the machining process, and by means of sliding between the fixed track and the sliding block, movement of the metal plate is achieved; and feeding of the metal plate is achieved.

The utility model relates to the technical field of ship mechanical part machining, in particular to a polishing device for ship mechanical part machining, and solves the problem that in the prior art, ship mechanical parts of different shapes and sizes cannot be conveniently adjusted and fixed, so that the polishing effect is poor. A polishing device for ship mechanical part machining comprises a machining table and a polishing machine, the machining table is provided with a sliding groove, the interior of the sliding groove is slidably connected with a mounting block, the top of the mounting block is provided with a bearing plate through a buffering mechanism, the surface of the bearing plate is fixedly connected with four supporting blocks, and the surfaces of the supporting blocks are in threaded connection with screws; a clamping drill is fixedly connected to the surface of the screw rod, a plurality of limiting grooves are formed in the surface of the bearing plate, and limiting rods are arranged in the limiting grooves in a penetrating mode. According to the polishing fixture, clamping and fixing of parts with different shapes and sizes are guaranteed, so that the parts can be normally polished, and the polishing effect of the parts cannot be affected.

Methods, systems, and devices for a removable charger adapter are described. The removable charger adapter may mount onto a charger base may be used to accommodate wearable ring devices of varying sizes on the charger base. In some examples, the removable charger adapter may include a mechanical component that may be flexible, curved, or both, to accommodate the wearable ring devices of varying sizes and apply a mechanical force to position the wearable ring devices firmly against the charger base. The removeable charger adapter may have an opening to allow a charging cord to connect to the charger base, and the opening may also serve to align the removeable charger adapter with the charger base. The removable charger adapter may be designed in various shapes, such as a circular shape or a square shape, which may fit various charger base shapes.

A sensing system comprises a mechanical component that is subject to an applied force. The mechanical component has an outer surface with bores. A concentrator is connected to the mechanical component via fasteners that pass through openings that align with the bores. The concentrator comprises a central neck portion with an elevated pedestal, a first extremity region extending outwardly away from the central neck portion and a second extremity region opposite the first extremity region. The second extremity region extends outwardly away from the central neck portion. A strain sensor is mounted on or coupled to the concentrator to transmit the applied force from the mechanical component via or through the concentrator to the mechanical component.

A mechanical component (10) has a surface and is made of steel subjected to quenching and tempering. The mechanical component includes a nitrided layer (11) formed at the surface (10a, 10b, 10c, 10d). Steel contains at least 0.95 mass % and at most 1.10 mass % of carbon, less than 0.30 mass % of silicon, less than 0.50 mass % of manganese, less than 0.0080 mass % of sulfur, at least 1.3 mass % and at most 1.6 mass % of chromium, and a remainder composed of iron and an inevitable impurity. An average nitrogen concentration at the surface is equal to or more than 0.10 mass %. A hardness at the surface is equal to or more than 850 Hv. An amount of retained austenite at the surface is equal to or less than 20 volume %.

The invention belongs to the technical field of cutting equipment, and particularly relates to a laser cutting device for machining mechanical parts of a coal mining machine, the laser cutting device comprises a workbench and a control cabinet mounted on the side wall of the workbench, a laser cutting mechanism is mounted on the end face of the workbench, the laser cutting mechanism is electrically connected with the control cabinet, and the laser cutting device further comprises a heat insulation seat and a laser cutting device, the heat insulation base is detachably connected with the workbench, a mounting frame hole is formed in the end face of the workbench, and the top of the heat insulation base penetrates through the mounting frame hole and is flush with the end face of the workbench. The heating unit is arranged on the end face of the heat insulation base and electrically connected with the control cabinet. By means of the preheating mode, the cutting quality can be improved, cracks and other defects can be reduced, laser energy is automatically regulated and controlled according to impurities in all positions, the cutting effect of the coal cutter cutting end plate is ensured, and meanwhile waste gas generated during cutting can be adsorbed and purified.

The present invention relates to the field of mechanical component testing technology, and in particular to a vibration testing device for mechanical components of a crane boom, comprising a vibration platform fixedly arranged at the bottom, the top of the vibration platform being used to install a cantilever crane, a fixed platform being arranged on the left side of the vibration platform, a fixed steel frame being arranged on the top of the fixed platform, a cantilever displacement mechanism being installed on the fixed steel frame, the left end of the cantilever displacement mechanism being connected to an externally matched telescopic device, a lifting and lowering position control device being installed at the right end of the cantilever displacement mechanism, and position control testing devices being installed on the front and rear sides of the lifting and lowering position control device, respectively. The present invention can be installed inside a workshop to test the vibration state of a cantilever crane under different vibration simulation working conditions and obtain the vibration frequency and amplitude, effectively monitor whether different vibration points of the current cantilever crane have exceeded the safety threshold, and issue an alarm after timely uploading.

The utility model relates to the technical field of mechanical part machining, and discloses a punching device for mechanical part machining, which comprises a machining table, the top of the machining table is provided with a collecting groove, and one side of the collecting groove is provided with a movable opening; the first supporting column is arranged at the top of the machining table; the second supporting column is arranged on the top of the machining table. By starting the telescopic rod, the telescopic rod operates to drive the clamping plate to move through the first connecting block, the clamping plate moves to drive the rack to move through the second connecting block, the rack moves to drive the other rack to move through the gear, and the other rack moves to drive the other clamping plate to move through the other second connecting block. The two clamping plates move oppositely to clamp the mechanical part needing to be punched, then the motor is started, the motor operates to drive the threaded rod to rotate, the threaded rod rotates to drive the placing table to move, the placing table moves to drive the mechanical part to move, and therefore the effects of clamping the mechanical part and driving the mechanical part to move are achieved.

The invention discloses a subway tunnel construction segment water seepage detection device, and relates to the technical field of subway tunnel construction segment water seepage detection. The subway tunnel construction duct piece water seepage detection device comprises a frame, the bottom of the frame is fixedly connected with an electric moving part, the bottom of the frame is fixedly connected with an electric steering part, the top of the frame is fixedly connected with an auxiliary mechanism, and the frame is provided with a remote control chip. Power-on starting of the electric moving part can drive the whole part to move, and power-on starting of the electric steering part can change the moving direction of the frame. According to the subway tunnel construction duct piece water seepage detection device, through cooperation of the electric moving component and the steering component, the device can automatically move along the surface of a duct piece, the advancing direction is adjusted, and detection areas at different longitudinal positions are covered; a first mechanical part in the auxiliary mechanism drives the connecting rod to lift, and a second mechanical part drives the detection mechanism to rotate.

A steel for forging mechanical parts including of the following elements, expressed in percentage by weight: 0.15%≤C≤0.22%; 1.6%≤Mn≤2.2%; 0.6%≤Si≤1%; 1%≤Cr≤1.5%; 0.01%≤Ni≤1%; 0%≤S≤0.06%; 0%≤P≤0.02%; 0%≤N≤0.013%; and having optional elements 0%≤Al≤0.06%; 0.03%≤Mo≤0.1%; 0%≤Cu≤0.5%; 0.01%≤Nb≤0.15%; 0.01%≤Ti≤0.03%; 0%≤V≤0.08%; 0.0015%≤B≤0.004%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel having microstructure by area percentage including of cumulative presence of residual austenite and martensite-austenite island between 1% and 20%, the remaining microstructure being bainite having at least 80%, wherein the fraction of grain boundaries of bainite with a misorientation angle of 59.5° are at least 7% and with an optional presence of martensite between 0% and 10%.

The invention discloses a mechanical part reliability digital twin model construction method and computer equipment. According to the method, a mechanical part digital twinborn model based on a failure mechanism model, a mechanical part digital twinborn model based on an empirical model, a mechanical part digital twinborn model based on a simulation model and a mechanical part digital twinborn model based on a structural performance function are constructed according to a mechanical part digital twinborn model based on a failure mechanism model, a mechanical part digital twinborn model based on an empirical model, and on the basis of the priority sequence of the mechanical part digital twinborn body models of the data model, the reliability digital twinborn body models of the mechanical parts are constructed in sequence, so that the complete mechanical part reliability digital twinborn body model can be constructed. Simulation, monitoring, diagnosis, prediction and control of reliability indexes such as failure rate, reliability, service life and residual service life of the mechanical part are achieved, reliability design analysis, test evaluation and diagnosis prediction of the mechanical part are achieved through a digital means, the product iteration upgrading period is greatly shortened, and the research, development and use cost of the mechanical part is greatly reduced.

Provided is a game system with gears and indicia, for modular game information record-keeping and record-changing devices, systems, and associated methods based on sets of mechanical gears having game indicia provided thereon. The architecture of the system uses combinations of mechanical gears, cams, shafts, clutches of various types, and other mechanical components that constitute an analog “computer” performing basic mathematical functions, managing data, or performing analogs for life principles—such as the impact of events, physics-based or fantasized realities, interpersonal relationships, behavioral characteristics, conflict dynamics, etc.

The invention discloses a wind turbine generator fault monitoring method and system. The method comprises the following steps: acquiring mechanical part sensor data, environment data and operation data; performing data preprocessing operation according to the mechanical part sensor data, the environment data and the operation data to obtain preprocessed multi-dimensional unit data; according to the multi-dimensional unit data, performing hypergraph construction operation to obtain hypergraph data; inputting the hypergraph data into a multilayer hypergraph convolution model, and performing multilayer hypergraph convolution processing operation to obtain hypergraph convolution feature data; inputting the hypergraph convolution feature data into an abnormal score calculation model, and performing abnormal score calculation to obtain a fault abnormal score of the wind turbine generator; and when it is determined that the fault abnormity score is greater than a preset abnormity threshold value, generating an alarm signal, and sending the alarm signal to a user side. According to the method, real-time accurate detection of the fault of the wind turbine generator can be realized.