76 results about "Mechanical failure" patented technology

The application discloses a dangerous rock mass deterioration multifunctional test device and method, and through the setting of a self-weight stress loading frame and a detachable rock deterioration experiment cabin, deep coupling of mechanical load and environmental erosion is realized, technical defects of mutual disconnection of a stress field and an environmental field in traditional tests are solved from the root, the whole process of rock samples from deterioration evolution to final mechanical failure does not need to experience secondary transportation and repeated installation, a crack initiation and evolution mechanism under the guidance of a stress field is effectively restored, and therefore, the accuracy of experimental data in characterization of real damage laws of dangerous rock mass is remarkably improved.

This invention provides an equivalent substitute, its preparation method, and its application for testing the mechanical properties of RDX-based non-aluminum-containing press-loaded explosives under temperature load. The equivalent substitute is prepared by replacing the energetic material RDX in the RDX-based non-aluminum-containing press-loaded explosive formulation with the non-energetic material ammonium sulfate. The equivalent substitute is used to replace the actual explosive for testing its mechanical properties under temperature load. The equivalent substitute, by mass percentage, comprises the following raw material components: 95.5%–96.5% ammonium sulfate, 2%–3% polyvinyl acetate, and 0.5%–1.5% stearic acid, with the total mass percentage of the above components being 100%. The mechanical properties of the molded explosive charge made with the equivalent substitute provided by this invention, such as compressive strength and tensile strength (compressive strength of 2.9-27.3 MPa and tensile strength of 1.1-5.9 MPa at -55 to 70°C), are basically consistent with those of real explosives under different temperature loads. This can truly reflect the changes in the mechanical properties of the actual explosive charge during environmental and aging tests, and can provide data support for the mechanical failure assessment of explosives.

The utility model belongs to ground robot technical field especially a factory ground robot with self -cleaning track structure aims at the track of traditional factory ground robot of current easy to be attached to impurity, manual dismounting cleaning maintenance cost is high, influence operation, through scraper cleaning existence blind angle, it is difficult to clean sticky dirt, heavy load is easy to wear and tear and stagnate the problem, present and propose following scheme, including ground robot body, the both sides of ground robot body are rotatably connected with track, in the utility model, through the cleaning box and nylon brush that set up in the both sides of ground robot body, realize full -automatic cleaning, reduce maintenance cost, dust collection subassembly passes through passageway, dust extraction device and the dust collection of connecting pipe with filter screen collect dust, avoid secondary pollution, keep the environment clean and prolong the life, the cleaning assembly is through water pump, cleaning pipe and shower nozzle group flush track, cooperate brush and remove stubborn dirt, realize physical to chemical cleaning upgrade, reduce mechanical failure.

The present application belongs to the technical field of data processing, and particularly relates to a kind of spring forming equipment operating state monitoring and fault early warning method, its method includes: through the operating state data of key servo shaft, the torque stiffness is calculated, and the forming cycle is automatically divided into elastic contact, plastic forming and unloading demoulding phase;In the plastic forming phase, the influence of raw material hardness fluctuation is stripped by calculating the dynamic rheological resistance index of material and the upper limit of dynamic current;At the same time, the energy topology consistency coefficient containing position weighting function is calculated to capture the slight waveform distortion;Finally, a comprehensive fault early warning index is constructed based on the above index, and the equipment is warned or stopped in stages.The present application can effectively decouple material attribute fluctuation and mechanical failure, and improve the detection sensitivity of early failure.

This application specifically relates to a design and evaluation method for mechanical failure simulation schemes in aircraft lift enhancement device failure testing, comprising: Step 1, designing different mechanical failure simulation schemes to obtain mechanical failure simulation parts; Step 2, scoring different mechanical failure simulation parts and their schemes for rejection criteria, and rejecting mechanical failure simulation parts and their schemes with excessively low rejection criteria scores; Step 3, scoring the mechanical failure simulation parts and their schemes based on the test and according to the mechanical failure test simulation consistency evaluation index; Step 4, selecting the mechanical failure simulation part and its scheme with the highest score and manufacturing the mechanical failure simulation part; Step 5, conducting lift enhancement device failure tests based on the mechanical failure simulation part and its scheme with the highest score, and scoring the mechanical failure simulation parts and their schemes again according to the mechanical failure test simulation consistency evaluation index based on the lift enhancement device failure test results, to obtain the final mechanical score.

The present application relates to a mechanical fault feature extraction method and a model construction method, system and device, belonging to the field of mechanical equipment fault diagnosis. The construction method comprises: collecting a fault data set; building a fault feature extraction initial model comprising a multi-order positioning attention module and a multi-order positioning dense network; training and verifying the fault feature extraction initial model based on the fault data set; and obtaining a mechanical fault feature extraction model based on the results of training and verification. The extraction model performs multi-order re-calibration on the data set of the non-stationary variable load signal, and then extracts the deep features of the non-stationary variable load signal. Through the two stages of cascaded global recognition and local positioning, the pulse signal segment is gradually and deeply positioned, and the problem of pulse feature extraction in the non-stationary variable load signal is solved.

The application provides a control method of a vehicle, an electronic device and the vehicle, and belongs to the technical field of hybrid vehicle control. The method comprises the following steps: obtaining first misfire feature information of an engine and second misfire feature information of a generator, then performing fusion processing on the first misfire feature information and the second misfire feature information to obtain fusion feature information, determining a misfire diagnosis result of the engine based on the fusion feature information, determining a target processing strategy according to the misfire diagnosis result of the engine, and finally controlling the vehicle according to the target processing strategy to maintain the operation of the vehicle under the misfire state of the engine. The method can realize the safe and stable operation of the vehicle under the misfire working condition of the engine, effectively improve the NVH performance of the vehicle, and reduce the hardware loss and mechanical failure risk.

The utility model provides a kind of handheld nursing tool, it includes: shell, is housed and has inner cover cavity and the inner cover of housing recess, is housed and has the movement core component of Hall sensor of inner cover cavity, and located in housing recess and has magnet and is the knob of user and is stirred, wherein the movement core component includes motor, the power unit of power supply to motor, and the cutter head driven by motor;Wherein the magnet is close to Hall sensor, motor generates operation or stop.The utility model advantage is: reduce mechanical failure, to realize beautiful and durable use experience, more enhance cool play characteristics.

This utility model discloses a mechanical fault auxiliary analysis device, belonging to the field of mechanical fault auxiliary analysis technology. It aims to solve the problem that existing high-end, multi-functional cable fault analysis equipment is typically large and heavy, making it inconvenient to carry in the field. Furthermore, when used in the field, it requires operators to bend over constantly, accelerating worker fatigue. The device includes a main housing for the fault analyzer, with a cover at the top and an auxiliary mechanism at the bottom. This auxiliary mechanism includes connecting frames fixedly connected to the four corners of the lower side of the main housing. A round shaft is fixedly connected to the inner side of each connecting frame, and a threaded rod is connected to the front end of the connecting frame. A first handle is welded to the front side of the threaded rod, and a rotating rod is connected to the inner side of the connecting frame. An adjusting rod is connected inside the rotating rod.

This utility model discloses a multi-functional stacking bag packaging machine mechanism, relating to the field of packaging machine technology. It includes a packaging machine body, a conveying device, and a controller, with the front of the packaging machine body fixedly connected to the back of the conveying device. This multi-functional stacking bag packaging machine mechanism, through the electrical connection between temperature and humidity sensors, dust sensors, vibration sensors, and the controller in the environmental detection and early warning components, enables the controller to receive environmental temperature and humidity, dust concentration, and equipment vibration data monitored by each sensor. This allows for real-time detection and early warning of environmental anomalies and equipment malfunctions. Thus, this device achieves the effect of accurately monitoring the packaging machine's operating environment and mechanical status through a multi-dimensional sensor monitoring and intelligent early warning system, promptly detecting anomalies and reminding operators to take measures to avoid abnormal wear and unplanned downtime caused by unsuitable environment or mechanical failure.

This invention belongs to the field of power generation engineering management technology, specifically a testing device and molded case circuit breaker (MCCB) for detecting circuit breaker faults. Addressing the issues of manual testing of MCBs, which suffers from uncontrollable opening and closing speeds, inaccurate test results, low batch testing efficiency, and inability to diagnose internal mechanical faults, this invention proposes the following solution: a fusion testing module comprising two fixtures, each with a single fixture guide frame fixedly connected to one side, and grooves on both sides of the guide frame. This invention discloses a testing device and MCB for detecting circuit breaker faults that significantly improves testing efficiency and consistency through fully automated, precise testing and adaptive clamping technology. Furthermore, it innovatively employs multi-sensor fusion diagnostics and deep simulation of opening and closing operations, achieving non-invasive and accurate diagnosis of internal mechanical and potential faults within the circuit breaker.

The application discloses a kind of mechanical arm multi-axis coordination's emulsion explosive finished product stacking and loading device, it is related to emulsion explosive finished product carrying technical field, including mechanical arm body, mechanical arm body is fixedly connected with adsorption carrier, dust adsorption mechanism is arranged on adsorption carrier, dust adsorption mechanism includes symmetrically arranged side plate, can remove dust attached to the adsorption hole of adsorption carrier after adsorption carrier adsorbs and carries emulsion explosive finished product box and stacks, so as to not only restore the smoothness of adsorption hole, and ensure that adsorption carrier can effectively adsorb and carry emulsion explosive finished product box in the carrying process, guarantee the security of emulsion explosive finished product box in the process of stacking, and avoid the situation that dust is accumulated in adsorption carrier inside occurs, so as to reduce the risk that adsorption carrier is influenced by dust and leads to internal mechanical failure and equipment damage, prolong the service life of adsorption carrier, reduce maintenance and replacement cost.

This invention discloses a mechanical fault auxiliary maintenance decision-making method and system based on A-Star, belonging to the field of virtual maintenance. It includes: receiving a faulty component and the designation of the first component to be disassembled; starting from the first component and ending with the faulty component, calculating the comprehensive cost under each maintenance strategy based on the different attributes of the components; and using the A-Star algorithm to traverse the adjacent 3D models of the current component model to obtain multiple candidate maintenance solutions. The target equipment includes multiple components, and each component in the 3D model includes physical attributes and at least one disassembly / assembly attribute. The disassembly / assembly attribute includes: disassembly / assembly cost, disassembly / assembly time, number of tools required for disassembly / assembly, and number of personnel required for disassembly / assembly. This invention calculates costs based on the different attributes of the components and uses the A-Star algorithm to traverse the adjacent 3D models of the current component model, finding the next component with the minimum cost at each step, thereby improving maintenance efficiency and reducing maintenance failure rate.

This utility model provides a drying oven tray sliding structure, belonging to the field of tray sliding technology, to solve the problem that uneven loading of the tray easily aggravates the wear of one side of the guide rail, leading to tray displacement or jamming, causing mechanical failure or safety accidents. The structure includes a drying oven body, with two sets of limiting guide rails fixedly connected to the inner side of the drying oven body; a load-bearing tray is slidably mounted on the upper end of the inner side of the limiting guide rails; multiple elastic positioning frames are evenly arranged on the left and right sides of the bottom end face of the load-bearing tray; rollers are rotatably mounted on the inner end face of the elastic positioning frames; connecting support shafts are coaxially fixedly connected to the inner end face of the rollers; positioning support cylinders are elastically connected to the upper end of the elastic positioning frames; an automatic monitoring mechanism is provided between the rollers and the positioning support cylinders; and an anti-detachment auxiliary mechanism is provided between the load-bearing tray and the limiting guide rails. This improves the safety of the drying oven and the operational stability of the equipment, and enhances the working efficiency of this structure in practical applications.

The utility model relates to cabin door technical field especially is a kind of upturning type opening and closing structure of cabin door.The upturning type opening and closing structure of cabin door includes cabin door body, cabin door body is installed in the front end of opening and closing structure, and is equipped with support frame and mounting assembly on opening and closing structure, support frame includes left support plate and right support plate, and the front portion of right support plate is provided with the sliding slot of horizontal "7" character shape structure, and the both ends of mounting assembly are respectively equipped with left transition frame and right transition frame, and right transition frame is equipped with the sliding element that is inserted into sliding slot and slides along sliding slot, and right support plate is equipped with the drive mechanism that drives right transition frame to move, and left transition frame is equipped with the limiting piece that limits mounting assembly.The utility model is through the collaborative design of double-side support, composite sliding slot and worm wheel self-locking, solves the problem of traditional cabin door because of one-side drive to cause jam, reduces mechanical failure rate, improves security, reduces operation and maintenance cost;"7" character shape sliding slot and the combination of upturning movement optimize movement path, and save opening space.

This utility model provides a coal mine safety-type mechanical fault detection device, belonging to the field of coal mine safety production technology. The device includes a sleeve; a sliding column slidably connected within the sleeve; a top plate fixedly connected to the upper end of the sliding column, with a rotating rod rotatably connected to the upper end of the top plate; a ratchet fixedly connected to the upper part of the rotating rod, with ratchet teeth rotatably connected to the top plate via a rotating shaft; the ratchet and ratchet teeth intermittently meshing; a torque spring connecting the ratchet teeth and the top plate, the torque spring matching the ratchet teeth and ratchet; and a fault detection device connected to the upper end of the rotating rod. Through the sliding connection between the sliding column and the sleeve, and the locking mechanism through the cooperation of a telescopic rod and a protrusion with a locking jaw, the height of the device can be quickly adjusted according to the actual needs of the coal mine.

The present application relates to the technical field of data processing, more particularly, to a mine machinery fault analysis method and system to solve the technical problems of false positives and inability to distinguish between normal dynamic impact and fault impact due to nonlinear response in the prior art. The method comprises: collecting time series data of the driving part of the mine machinery and performing feature extraction, the extracted features including current mean, vibration energy, vibration peak factor and current fluctuation rate; normalizing the vibration energy; decoupling the mechanical vibration impact to distinguish between normal coal falling and mechanical failure; and weighting and fusing the static impedance anomaly factor and dynamic impact decoupling index to generate a real-time health score of the equipment. The present application can monitor gradual wear and tear and capture sudden failures through multi-dimensional fusion diagnosis, thereby improving the intelligent operation and maintenance level of mine equipment.

The utility model relates to a kind of finish rolling entry side guide mechanism, comprising: guide body, base, oil cylinder joint, oil cylinder and oil cylinder fixed part;Wherein, the base is located below the bottom plate of guide body, used as the track of guide body sliding;The oil cylinder has fixed end and movable end;The oil cylinder joint is located above the bottom plate of guide body, and is connected with the movable end of the oil cylinder;The oil cylinder fixed part is located above base and is away from the oil cylinder joint one end, and is connected with the fixed end of the oil cylinder.Oil cylinder joint and oil cylinder fixed part are designed on the bottom plate of guide body, when mechanical failure, guide does not need to exit rolling mill, maintenance personnel also do not need to enter guide bottom operation, operation space is no longer limited, greatly improve maintenance efficiency and safety, also reduce the huge amount of time and resource consumption due to sudden failure.The utility model design mode is simple and convenient, easy to operate.

The utility model relates to the technical field of inspection robot, disclose a kind of anti-toppling device of inspection robot, including the base that can be installed below robot, control assembly is connected to the bottom of base, support assembly is connected to be equipped in the inside of base;Support assembly includes motor and connecting plate, motor is fixedly installed in the outside of base by bolt;The utility model compared with prior art has the advantages that when inspection robot encounters sudden external force interference, support assembly can quickly elongate, increase the contact area and support span with ground, reduce the gravity center, enhance the anti-overturning ability of robot, improve the stability of anti-toppling device of inspection robot;When support assembly appears abrasion, mechanical failure or component damage due to long-term use, can be pulled out screw rod, remove damaged support leg, and replace new support leg, improve the maintenance convenience of anti-toppling device of inspection robot.

The utility model relates to the technical field of automobile part transfer equipment, in particular to an automobile skylight sliding rail transfer device. According to the technical scheme, the trolley comprises a trolley plate and further comprises a plurality of storage boxes connected to the upper surface of the trolley plate in a sliding mode, and each storage box is provided with a plurality of storage grooves; the identification mechanism is mounted on the vehicle plate to open or close the storage box; and the springback mechanism is arranged at the bottom of the storage box and is used for locking the identification mechanism in the opening or closing state. According to the automobile skylight sliding rail transfer device, the storage box, the storage groove, the identification mechanism, the springback mechanism and other structures are matched, sliding rails of different models can be clearly separated, workers can be helped to quickly find the sliding rails of the needed models, and the time for finding the sliding rails due to disorder is shortened. Smooth operation in the production process can be guaranteed by taking the sliding rail of the correct model, and the mechanical fault or the product quality problem caused by the wrong model is avoided.

The utility model relates to optical communication technical field discloses an optical module unlocking reset structure, including optical module casing, the top left side of optical module casing is equipped with the push groove, the bottom of push groove is provided with the limit component, the limit component includes first cavity. In the first cavity, the upper end of push rod is coupled with push block, and simultaneously in the mounting groove left side of the cavity, the first spring is fixedly connected in the left end of push rod, when push block moves to the right side, push rod also moves to the right side along with it, and the pressure is added to the limit block in the second cavity, leads to the limit block to shrink to the second cavity. Subsequently, push rod resets under the tension of first spring, and the limit block loses pressure along with it, and under the elasticity of second spring, the limit block returns to its initial position, realizes unlocking and reset function. The device structure is simple, and the mechanical failure rate is lower.

The application discloses an automatic inspection device for a conveyor belt carrier roller and relates to the technical field of inspection devices, which comprises a walking mechanism and a power generation mechanism. The walking mechanism is arranged on a flat steel, the upper and lower sides of the flat steel are conveyor belts, and the flat steel is arranged between two rows of carrier rollers. A pair of detection assemblies are arranged on the walking mechanism, and the device further comprises a pressing assembly, a driving assembly and a cleaning assembly. The detection assemblies arranged on both sides of the device integrate binocular cameras, three-dimensional imagers and microphone arrays. During stable movement, they synchronously collect carrier roller state information from three physical dimensions of vision (surface defects), three-dimensional form (size, coaxiality and offset) and acoustics (abnormal sound and bearing failure), can comprehensively identify various problems from appearance abnormalities to internal mechanical failures, greatly improve the defect detection rate and the reliability of state diagnosis, and avoid the limitation of single sensor detection.

The utility model relates to the field of electric reactor fault simulation, especially a single -phase double -column parallel electric reactor fault simulation device, device main part is double silicon steel sheet core column structure, winding winding on the column, four around set up iron yoke, still be equipped with electrical fault simulation unit and mechanical fault simulation unit, wherein electrical fault simulation unit includes the front insulating plate and a plurality of taps of setting in device main part front, simulate the fault of turn -to -turn short circuit through short -circuit tap, the more short -circuit tap, represent the more serious fault, short -circuit tap of different position, represent the position of fault occurrence is different, and mechanical fault simulation unit includes the first loose simulation unit for simulating winding loose fault.

This invention discloses a method and system for diagnosing mechanical faults in circuit breakers driven by multi-source data fusion. The method includes: constructing a rigid-flexible coupled dynamic simulation model of the circuit breaker based on multibody dynamics simulation software; collecting measured vibration signals and simulated vibration signals from the rigid-flexible coupled dynamic simulation model at preset measurement points on the circuit breaker; correcting each simulated vibration signal based on the measured vibration signals and constructing a dataset; constructing a mechanical fault diagnosis model for the circuit breaker based on convolutional neural networks and convolutional block attention mechanisms, and training the model using the dataset; collecting measured vibration signals at the preset measurement points on the circuit breaker in real time, inputting the measured vibration signals into the trained mechanical fault diagnosis model, and determining in real time whether a fault has occurred in the circuit breaker. This invention has significant advantages such as high stability and accuracy in vibration signal acquisition, strong noise resistance and generalization ability of the mechanical fault diagnosis model, and high accuracy and stability in mechanical fault diagnosis.

This invention relates to a generalized zero-sample mechanical fault diagnosis method based on a distributed generation Schrödinger bridge model, belonging to the field of mechanical equipment fault diagnosis. The method extracts the fault semantic attributes of known-class fault samples from preprocessed vibration signals, designs a lightweight distributed generation Schrödinger bridge model to synthesize pseudo-unknown-class fault samples, trains a domain separation classifier using the optimized generated samples and known fault samples, and then uses the domain separation classifier to distinguish between known and unknown domains in real-time acquired vibration signal samples. If a real-time sample is an unknown-domain sample, its features are mapped to the semantic space, and feature clustering is combined to correct the prototype and assign fault category labels to the unknown-domain samples. This invention can control the labels and distribution of generated samples while reducing the number of parameters, effectively distinguish between known and unknown fault categories, and improve the applicability of the diagnostic model in actual rotating machinery systems.

The utility model relates to the technical field of agricultural engineering, disclose a kind of harvesting and cutting integration operation device, including main component, including harvester, harvester side is provided with the sweep wheel, sweep wheel inner wall is inserted with the shaft, the outer side of the shaft is equipped with support plate, support plate one end is sleeved in the outside of harvester sliding, the inner wall of harvester is provided with multiple clamping grooves;Adjusting component, insert in support plate inner wall, including adjusting piece, adjusting piece includes the bolt inserted in support plate inner wall, the inner wall of bolt is provided with clamping block, clamping block one end is connected with spring, the inner wall of clamping block is provided with extrusion slot.The utility model has beneficial effect for: the quick positioning of harvester and sweep wheel is realized by bolt, with the bolt limiting structure under the working state of sweep wheel, both can efficiently complete sweep wheel position calibration, and can also targetedly offset the vibration and bump interference when agricultural machinery operation, effectively prevent bolt loosening and falling off, and then guarantee sweep wheel positioning stability and harvesting precision, reduce mechanical failure incidence.

This utility model relates to the field of sealing valves, and more particularly to a sealing valve for a pyrolysis furnace. The valve body has a valve plate in the valve cavity, and spring scrapers are installed at both ends of the outer side of the valve plate, pressing and adhering to the inner wall of the valve cavity. In this utility model, flexible spring scraper mechanisms are provided on both sides of the valve plate. With the opening and closing rotation of the valve plate, these mechanisms adaptively adhere to the valve cavity and scrape off coke adhering to the sealing interface of the valve cavity. The resulting trace amounts of coke ash are drawn in by the negative pressure generated in the jet nozzle for centralized discharge, improving the maintenance efficiency of the valve body and effectively solving valve mechanical failures caused by coking.

The invention relates to a material kernel taking system which is applied to the field of material production and comprises a first mounting frame and a second mounting frame, a rotating disc is rotationally connected to the first mounting frame, a material receiving mechanism is arranged on the rotating disc, a driving mechanism for driving the rotating disc to rotate is further arranged on the first mounting frame, and a kernel removing mechanism is arranged on the second mounting frame. The kernel removing mechanism and the material receiving mechanism are arranged in a staggered mode in the vertical direction, and the kernel removing mechanism is used for removing kernels of the half portions of the fruits from the position below the material receiving mechanism. The fruit kernel removing device has the technical effects that the kernel removing mechanism performs kernel removing on the half part of a fruit from the lower part of the material receiving mechanism, normal conveying of the turntable is not influenced even if the kernel falls off accidentally, the possibility of polluting a conveying belt or influencing other transmission parts is reduced, the equipment jamming risk is reduced, the mechanical fault and downtime are reduced, and the production efficiency is improved.

The application relates to the technical field of robots, in particular to a waist and hip mechanism and a humanoid robot. The waist and hip mechanism comprises a waist rotation module, a hip pitch module, a hip side spread module and a hip rotation module. The waist rotation module comprises a waist support, a waist rotation driving element, a first hip support and a second hip support. The waist rotation driving element is arranged on the waist support. The first hip support is connected with a driving end of the waist rotation driving element. The second hip support is connected with the first hip support. The hip pitch module is connected with the first hip support on one side and connected with the second hip support on the other side. The hip side spread module is connected with the hip pitch module. The first hip support, the second hip support and the hip pitch module are connected with each other, so that the impact on the hip pitch module is reduced, the bending moment and external impact force can be effectively processed, the possibility of directly transmitting the impact force to the waist rotation driving element is reduced, the risk of mechanical failure and damage is reduced, the service life of the humanoid robot is prolonged, and the maintenance and replacement costs are reduced.