7760 results about "Wire rope" patented technology

The invention provides an elevator steel wire rope detection method and device, equipment and a storage medium, and belongs to the technical field of automatic monitoring. The method comprises the steps that electromagnetic signal data in a steel wire rope and vibration signal data of the end of the steel wire rope are obtained; performing feature extraction on the electromagnetic signal data and the vibration signal data to obtain electromagnetic noise features and vibration noise features; performing cross fusion on the electromagnetic noise feature and the vibration noise feature to obtain a first joint noise feature; performing denoising processing on the electromagnetic signal data and the vibration signal data based on the first joint noise feature to obtain denoised electromagnetic signal data and denoised vibration signal data; and performing fault prediction based on the denoised electromagnetic signal data and the denoised vibration signal data to obtain fault information of the steel wire rope. According to the elevator steel wire rope detection method and device, the equipment and the storage medium, the elevator steel wire rope fault detection precision can be improved.

The invention discloses an elevator steel wire rope detection device and method, and the device comprises the following steps: firstly, carrying out the pre-scanning of an initial magnetic field, then carrying out the magnetization of a steel wire rope through a multi-stage adjustable electromagnet, and controlling the magnetization intensity through a current; the method comprises the following steps: firstly, pre-scanning a magnetic field, then, carrying out real-time monitoring and feedback control on the magnetized magnetic field, carrying out synchronous acquisition through a multi-modal sensor, then, extracting multi-domain features, receiving a feature vector set by a model, carrying out dynamic weighting operation on the feature vector set, and finally, outputting a task. The problem that initial magnetic fields of the steel wire ropes are inconsistent can be effectively solved, data are synchronously collected through the multi-mode sensor, effective distinguishing and quantitative evaluation of different types of defects such as wire breakage, abrasion, corrosion and fatigue damage are achieved, and the defects of an existing detection mode in defect subdivision and quantification are overcome.

The invention relates to the technical field of crane equipment health monitoring, in particular to a crane running state health monitoring system and method. A sensing data acquisition unit is used for acquiring a winding drum vibration harmonic component, a steel wire rope leakage magnetic field gradient and a pulley block real-time load; the data analysis unit performs rotating speed synchronous variational mode decomposition on the vibration component to extract resonance characteristics, performs temperature and stress double-compensation correction on a leakage magnetic field gradient, quantifies an energy entropy attenuation rate through wavelet packet decomposition, constructs a phase difference model of a load and vibration to output a slip risk phase offset, calculates a load spectrum damage cumulant, and calculates a load spectrum damage cumulant; and after the four heterogeneous features are fused, a residual life coefficient is output through a dual-channel convolution-long and short-term memory hybrid neural network, and an execution unit triggers crane speed reduction control when the residual life coefficient is lower than a threshold value, so that the problems of insufficient multi-source data fusion and lack of dynamic compensation in the traditional technology are solved, and the fault early warning accuracy is improved.

The invention discloses an elevator steel wire rope wear real-time monitoring system and equipment thereof, and relates to the technical field of safety monitoring, the elevator steel wire rope wear real-time monitoring system comprises an acquisition and extraction module which acquires real-time surface image data and vibration signal data of a steel wire rope through a sensor array, extracts surface damage features and vibration spectrum features by adopting an image processing algorithm, and sends the surface damage features and the vibration spectrum features to a server; fusing kernel function selection and hyperplane separation to process the preliminary wear feature set; the crack identification module is used for fusing tensile strength and corrosion resistance data in the material characteristic database according to the initial wear characteristic set, classifying potential fatigue crack types through support vector identification and crack morphological characteristics by adopting a support vector machine algorithm, and determining a fatigue crack distribution diagram; according to the elevator steel wire rope abrasion real-time monitoring system and equipment thereof, accurate abrasion evaluation and dynamic maintenance optimization are achieved, the safety of the steel wire rope is improved, and the service life of the steel wire rope is prolonged.

The invention relates to the technical field of tunnel engineering, and particularly discloses a trolley loading device and method for tunnel lining splicing, the trolley loading device comprises a hoisting transfer mechanism, bearing turnover mechanisms are arranged on the two sides of the hoisting transfer mechanism, and transfer feeding mechanisms are further arranged at the lower ends of the two sides of the hoisting transfer mechanism; the hoisting and transferring mechanism comprises a supporting frame, a guide rail pair sliding rail I, a guide rail pair sliding seat I, a supporting plate, a motor I, a winding roller and a steel wire rope I; the bearing turnover mechanism comprises a first bearing, a first shaft rod, a rope wheel, a second steel wire rope, a second bearing, a second shaft rod, a second motor and a bearing plate. According to the scheme, efficient hoisting and accurate positioning of the duct piece are achieved through the hoisting and transferring mechanism, the arch structure design of the supporting frame provides a stable supporting foundation, the duct piece can stably move left and right through cooperation of a guide rail pair sliding rail and a sliding base, a motor drives a winding roller to wind and unwind a steel wire rope, and the hanging design of a hook is combined; and vertical lifting of the duct piece is achieved.

The invention relates to a pile foundation deformation indirect monitoring device and method based on optical fiber sensing, the device comprises a counterweight guide hammer, a steel wire rope, a distributed sensing optical fiber and a BOTDA optical signal demodulation device, the counterweight guide hammer is used for guiding the distributed sensing optical fiber to enter a drill hole, the steel wire rope is bound and connected with the counterweight guide hammer through a hanging ring above the counterweight guide hammer, and the BOTDA optical signal demodulation device is connected with the BOTDA optical signal demodulation device. The BOTDA optical signal demodulation equipment is used for pulling a counterweight guide hammer, the distributed sensing optical fiber comprises a connecting section, a measuring section I, a measuring section II, an optical signal input section and an optical signal output section, and the BOTDA optical signal demodulation equipment is used for collecting and analyzing an output Brillouin scattering light signal; the method comprises the following steps: 1, laying measuring points; 2, strain conversion; 3, geometric transformation; and 4, mechanical conversion. The device solves the limitation that the existing monitoring technology cannot carry out nondestructive testing on the existing pile foundation, and is simple in structural design, efficient in layout and easy to popularize.

The invention discloses a dynamic anti-swing control method of a grab ship unloader, a storage medium and computer equipment, and the method comprises the following steps: acquiring real-time operation state information of the grab ship unloader during operation through a multi-source sensor mounted on the grab ship unloader; a target feedback gain matrix corresponding to the grab ship unloader is determined through a gain scheduling table according to the real-time steel wire rope length and the real-time load in the real-time operation state information, and the gain scheduling table comprises an optimal feedback gain matrix corresponding to the combination of various steel wire rope degrees and loads; determining a target control law based on the target feedback gain matrix, and determining a target control signal of the grab ship unloader according to the target control law and the real-time operation state information; and driving the grab ship unloader to move according to the target control signal. Dynamic anti-swing can be achieved, and the operation precision and efficiency are improved.

The invention provides an automatic solar panel cleaning device for a large photovoltaic power plant. The automatic solar panel cleaning device comprises a walking mechanism, a cable driving mechanism, a rolling brush cleaning mechanism and a panel side limiting mechanism. The walking mechanism is installed on a track above the top edge of the photovoltaic panel and moves left and right along the track. The rope arranging mechanism is connected with the walking mechanism through a shell, comprises two independent cable arranging devices, is driven by two motors and is used for winding and arranging a steel wire rope so as to keep stable operation of the cleaning mechanism. The cleaning mechanism is hung below the walking mechanism through two cables and vertically moves along the surface of the photovoltaic panel to achieve cleaning. The plate side limiting mechanisms are symmetrically installed on the cleaning mechanism, can be tightly attached to the side vertical face of the photovoltaic plate or the edge of the frame and are used for assisting the cleaning mechanism in vertically moving on the plate face. The device has the advantages of being simple in structure, high in adaptability, stable in operation and high in cleaning efficiency, and is suitable for efficient and automatic cleaning of large-area solar panels.

The invention discloses a multi-modal data fusion-based steel wire rope detection and real-time transmission method and system, and the method comprises the steps: starting a detection system, collecting a steel wire rope damage detection signal, collecting equipment position and operation state data, constructing an original data set, carrying out the preprocessing, building an incidence matrix, dividing a processing unit, and then extracting features, and forming an initial feature data set. And extracting damage features through a multi-branch network, strengthening the weight of a key region, fusing position and equipment state features through a multi-modal fusion module, generating fusion vectors, classifying and identifying, and outputting a structured detection result. And the acquisition equipment end performs grading processing on the data, distributes transmission channels according to priorities, dynamically adjusts parameters, adds integrity and time sequence identifiers, and the upper computer verifies the data integrity and triggers abnormal supplementary transmission. And the upper computer decodes the data, reconstructs the waveform, gives an alarm in real time in combination with preset parameters, and generates details of damage key information. Reliable technical support is provided for safe operation and maintenance of the steel wire rope in industrial scenes.

The embodiment of the invention relates to assembly, and discloses a snakelike arm assembly tool which is used for assembling a snakelike arm comprising a plurality of steel wire ropes, and each steel wire rope is sleeved with a clamping sleeve. Comprising a base; the fixing assembly is arranged on the base and is used for fixing the snake-shaped arm; the jacking assembly is arranged on the base, corresponds to the clamping sleeve of the snakelike arm and is used for preliminarily fixing the steel wire rope; the jacking assembly comprises a coarse adjustment structure used for rapidly positioning the steel wire rope and a fine adjustment structure used for finely adjusting the position of the steel wire rope. The tool is used for assembling the snakelike arm comprising the multiple steel wire ropes, each steel wire rope is sleeved with a clamping sleeve, the steel wire ropes can be rapidly positioned through a coarse adjustment structure in the jacking assembly, and the overall assembling efficiency of the snakelike arm comprising the multiple steel wire ropes is effectively improved; in addition, a fine adjustment structure is matched, the position of the steel wire rope can be finely adjusted on the basis of coarse adjustment positioning, and the matching position of the steel wire rope and the snakelike arm clamping sleeve is accurately controlled.

The invention relates to the technical field of bridge crack detection, and discloses an automatic bridge crack detection device. The surrounding equipment can surround a bridge pier and climb the bridge pier, the detection equipment is arranged on the surrounding equipment, can move around the bridge pier and can synchronously climb along with the surrounding equipment, and the surrounding equipment is composed of a winding mechanism and climbing mechanisms arranged at the two ends of the winding mechanism; the winding mechanism comprises an outer cylinder and a winding wheel rotationally arranged in the outer cylinder, and two steel wire ropes with the two ends extending out of the outer cylinder and capable of being in butt joint are fixedly connected to the winding wheel. The crack detection device composed of the encircling equipment and the detection equipment is arranged, the encircling equipment and the detection equipment encircle the bridge pier through the steel wire rope, the device can adapt to bridge piers with different diameters, meanwhile, the device is easy to store, the whole structure is compact and easy to carry, and the detection equipment can also move around the bridge pier with the steel wire rope as the rail diameter. Therefore, comprehensive dead-corner-free detection is realized.

The utility model provides a test device for a ceiling clothes airing machine. The test device comprises a rack; the left test pull rope is used as a test pull rope for providing vertical upward pulling force for the first airing rod steel wire rope; the right test pull rope is used as a test pull rope for providing vertical upward pulling force for the second airing rod steel wire rope; the two ends of the cross rod are detachably connected with the wire outlet tail end of the first airing rod steel wire rope and the wire outlet tail end of the second airing rod steel wire rope respectively during testing; the two end parts of the cross rod are fixedly connected with one end part of the left test pull rope and one end part of the right test pull rope respectively; the pre-mounting piece device is used for providing vertically upward pulling force for the cross rod through the gravity of the pre-mounting piece device; the weighted mounting piece device is used for carrying out load pressing on the pre-mounting piece device during testing; and the lifting assembly is used for lifting and lifting the weight-increasing mounting piece device. According to the utility model, the steel wire rope of the suspended ceiling clothes airing machine can be accurately and efficiently detected in a load-bearing state in a manpower-saving manner.

The invention discloses a steel wire rope nondestructive testing method and system based on sensing and physical feature fusion, and belongs to the technical field of steel wire rope nondestructive testing. The method comprises the following steps: firstly, carrying out saturation magnetization on a steel wire rope through an axial Gaussian difference excitation probe so as to improve the signal-to-noise ratio of a defect magnetic flux leakage signal; and meanwhile, the instantaneous acceleration is synchronously acquired through the inertial measurement unit. And establishing a speed-signal model based on the law of electromagnetic induction, and performing dynamic speed compensation on the magnetic flux leakage original voltage signal. And then, quantitatively extracting characteristic parameters with clear physical significance, such as peak voltage, maximum gradient, full width at half maximum and the like, from the standardized magnetic flux leakage signal, fusing the characteristic parameters with deep characteristics extracted by the deep learning model, and inputting a fused characteristic vector into a full-connection neural network and a classifier to realize defect type identification and degree evaluation. According to the invention, high-precision and interpretable intelligent detection and residual life prediction of steel wire rope defects can be realized, the detection reliability is obviously improved, and predictive maintenance is supported.

The invention belongs to the technical field of cranes, and particularly relates to a compact low-clearance anti-swing crane and an anti-swing method. The device comprises a door frame; a hoist frame; a reel; a transverse driving motor; the hoisting mechanism is in transmission connection with the reel through a steel wire rope; the two groups of upper lifting pulley blocks are mounted on the hoisting frame and are arranged in parallel along the axis direction of the winding drum; the two lower lifting pulley blocks are installed on the lifting mechanism and arranged in parallel in the axis direction of the winding drum. The rotating center line of the upper lifting pulley block and the rotating center of the roller are located on the same plane. And the rotating center line of the lower lifting pulley block is lower than that of the lifting mechanism. The driving motor is transversely arranged, power is transmitted to the winding drum through the gearbox, meanwhile, the static size in the vertical direction is further reduced through the arrangement of the upper and lower pulley blocks with the low gravity center and the design of the lifting hook assembly with the high gravity center, and therefore under the given workshop clearance height, the working efficiency is improved. And the vast majority of vertical space is released to an effective cargo lifting stroke.

The invention relates to a bridge abutment settlement deformation monitoring device and method, and belongs to the field of bridge monitoring, the bridge abutment settlement deformation monitoring device comprises two bearing frames arranged on one side of a bridge pier and a steel wire rope I arranged between the bearing frames and used for supporting a connecting support, and the top of the connecting support is provided with a monitoring mechanism; the monitoring mechanism comprises a plurality of piston cylinders adjustably arranged at the top of the connecting support, piston push rods are slidably arranged at the tops of the piston cylinders, extension rod pieces fixedly connected with the piston push rods are fixedly arranged on one side of the pier, and display sleeves are fixedly arranged on the two sides of the connecting support. The display sleeve is communicated with the piston cylinder body through a connecting pipeline and used for transmitting liquid prefabricated in the piston cylinder body, and a piston sliding block is arranged in the display sleeve in a sliding mode. The double steel wire ropes and the tension jack form an elastic supporting system to buffer vibration, the hydraulic linkage design converts tiny settlement into visual displacement, the spring reset mechanism is matched to improve data reliability, automatic reset is achieved, continuous monitoring is supported, and the monitoring range is expanded.

The utility model discloses a water depth adjusting device of a test pool, and relates to the technical field of deepwater test pools. Comprising a floating bottom body, a lifting mechanism, a jacking device and a distributed detachable platform, each lifting mechanism comprises a winch, a steering pulley and a steel wire rope, one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope bypasses the steering pulley at the bottom of the deepwater experiment pool and is connected with the floating bottom body; the jacking device comprises an air cylinder, a connecting shaft, a guide wheel and a base, the air cylinder located on the base is connected with the guide wheel through the connecting shaft, and the guide wheel is connected with the guide sliding groove of the floating bottom body in a clamped mode; the jacking devices are symmetrically arranged on the two sides of the floating bottom body. The distributed detachable platform is laid on the floating bottom body through the connecting support. The device can meet the water depth requirement in an ocean engineering experiment, meet the ground elevation requirement in a civil engineering experiment and a wind tunnel experiment, and meet the requirement that the floating bottom does not move, rotate or get stuck in the operation process of experimental equipment.

The invention belongs to the technical field of bridge construction, and particularly relates to protective equipment with a protective shed hanging basket in a rainy region, which comprises a pouring section, the hanging basket is arranged at one end of the pouring section, a power mechanism is arranged at the upper end of the pouring section, an adjusting mechanism is arranged on one side of the power mechanism, and first rainproof cloth is arranged in the adjusting mechanism. And rainproof cloth II is arranged on one side of the adjusting mechanism. According to the protection equipment, the first waterproof cloth and the second waterproof cloth are arranged, the characteristics of water seepage resistance and tearing resistance of the high-strength PVC coating cloth are matched, meanwhile, it is guaranteed that the waterproof cloth is flat, tensioned and free of wrinkles after being unfolded by means of the steel wire rope balancing weight, and erosion of rainwater to unsolidified concrete and a hanging basket operation area of a pouring section can be completely isolated; the problems of segregation, surface dusting, strength reduction and the like of concrete due to rain wash are avoided, it is guaranteed that the concrete construction quality reaches the design standard, and the quality rework cost and construction period delay caused by rain are greatly reduced.

The invention discloses a wire drawing processing device for a steel wire rope, and relates to the technical field of wire drawing processing, the wire drawing processing device comprises a mounting table, an unwinding reel is mounted on the mounting table, a wire die is movably arranged on the mounting table, a working table is mounted on the mounting table, a limiting groove is formed in the working table, the wire die is movably mounted in the limiting groove, and a wire groove is formed in the working table; according to the wire drawing machine, by arranging the winding wheel, the threaded rod, the arch-shaped clamping frame, the powder bin and the like, segmented wire drawing is achieved through the arrangement of the arch-shaped clamping frame on the winding wheel when wire drawing is conducted on the steel wire rope, the wire drawing efficiency is improved, and the wire drawing efficiency is improved. And the steel wire rope can be clamped in sections when being broken, so that the tightened steel wire rope is prevented from driving the wire mold to jump out of the groove, the use safety of the structure is further improved, the occupied area is small, and the use is convenient.

The invention provides a lifting sling balance control method, which comprises the following steps of: detecting the actual distance from two ends of a traveling cart mechanism to a cart traveling track in real time through a first sensor, comparing the actual distance with a reference distance in real time, and further judging whether the sling is in a horizontal state in real time; as the two ends of the traveling cart mechanism abut against the cart traveling track, a first difference value and a second difference value between the actual distance and the reference distance are calculated respectively, and the first difference value and the second difference value correspond to the difference value between the actual distance between the two ends of the traveling cart mechanism and the cart traveling track and the reference distance respectively. The inclination state of the lifting appliance is judged by judging whether the first difference value and the second difference value are equal or not and judging the sizes of the first difference value and the second difference value, then the offset distance of the lifting appliance is detected through the second sensor, the steel wire rope is wound and unwound through the lifting mechanism till the two ends of the lifting appliance recover the horizontal state, and therefore safety and stability in the lifting appliance operation process are guaranteed.

The utility model relates to a mooring system and a wind generating set, the mooring system is used for being connected with a floating foundation, the mooring system comprises a first mooring assembly and a second mooring assembly, the first mooring assembly comprises a first anchor chain and a first counterweight part, the first counterweight part is connected to the first anchor chain, the first anchor chain comprises a first end part and a second end part, and the first end part is used for being connected with the floating foundation; the second mooring assembly comprises a fiber cable and a floating body, the floating body is arranged on the fiber cable, and one end of the fiber cable is connected with the second end of the first anchor chain; the third mooring assembly comprises a traction section and an anchoring part, one end of the traction section is connected with the end, away from the first anchor chain, of the fiber cable, the other end of the traction section is connected with the anchoring part, and the traction section comprises one of a steel wire rope and a second anchor chain. The embodiment of the utility model provides a mooring system and a wind generating set, the mooring system can be suitable for shallow water requirements, and the reliability of the mooring system can be improved.

The invention discloses a flame-retardant and wear-resistant rope and a preparation method thereof, and belongs to the technical field of rope processing. The rope comprises a steel wire rope and a rubber sheath; wherein the rubber sheath comprises inner-layer rubber and outer-layer rubber; the inner-layer rubber is prepared from the following components: butadiene styrene rubber, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, gamma-mercaptopropyltriethoxysilane, a rubber adhesive, cobalt neodecanoate, sulfur and a vulcanization accelerator; the outer-layer rubber comprises the following components: butadiene styrene rubber, nitrile rubber, a flame-retardant wear-resistant reinforcing agent, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, an antistatic agent, sulfur and a vulcanization accelerator; the cross section of the rope is designed to be flat, the width of the rope is 30-250 mm, the thickness of the rope is 10-40 mm, and the mass of the rope per meter is 0.5-25 kg / m. The prepared rope has excellent flame retardance, wear resistance and antistatic performance, the adhesive force between the rubber layer and the steel wire is large, and the rope is not prone to being abraded or peeled off in long-term use.

The invention discloses an intelligent cable traction system and a cable traction laying control method. A cable traction machine can electrically pull a traction rope and detect traction force in real time. And when the traction force exceeds a preset traction high threshold value, the cable winding and unwinding mechanism can be controlled to reduce the winding speed, so that the traction rope wound on the traction wheel is properly loosened, and the traction force is gradually recovered to be stable. And meanwhile, the cable winding and unwinding mechanism automatically adjusts the winding speed according to extrusion force data fed back by the pressure detection assembly, and it is ensured that the extrusion force is maintained within the preset parameter range. According to the embodiment of the invention, the extrusion force and the traction force are creatively combined, the winding speed of the cable winding and unwinding mechanism is comprehensively regulated and controlled, and the intelligent cable traction system is always in a reasonable working interval during traction and winding of the traction rope through an intelligent control mode, so that automatic traction and winding of the traction rope such as a steel wire rope are realized; therefore, the automatic traction operation of the cable connected with the traction rope is completed, and the intelligence and safety of cable laying construction are improved.

The invention belongs to the technical field of slurry pumping and discharging, and particularly relates to height-adjustable slurry pumping and discharging equipment which comprises two sets of inclined supporting rods. Each group of inclined supporting rods are arranged in a splayed shape; a mounting ring is fixedly connected to the top end of the inclined supporting rod; a cross rod is arranged on an inner ring between the two groups of mounting rings; the outer ring of the middle part of the cross rod is fixedly connected with a hanging lug; a chain block is hung on the hanging lug; a slurry pump is hung at the bottom of a lifting hook of the chain block; when the liquid level of mud in a mud pit fluctuates, an operator can adjust the lifting of the mud pump only by operating the chain block, so that the tedious procedures of binding, hoisting out, lowering and the like of a steel wire rope in a traditional mode are avoided, the non-operation waiting time is greatly shortened, and the construction continuity is ensured; meanwhile, the height of the slurry pump is adjusted in time, damage to the slurry pump is greatly avoided, the whole adjusting process is simple, an operator can independently complete the adjusting process, dependence on cooperation of multiple persons is reduced, and labor cost is saved.

The utility model discloses an underwater backfill drag suction dredger with replaceable drag heads, which is characterized in that the lower end of a steel wire rope support arm is connected with a support, a sliding block matched with a sliding chute is arranged below the support, the sliding chute is fixed on a dredger body and extends along the longitudinal direction of the dredger body, and the two supports are respectively connected with two ends of a two-way screw through threads. The two-way screw is supported by the ship body, extends in the longitudinal direction of the ship body and is driven by a motor II. The two supports are driven by the two-way screw to move in the opposite directions at the same time, the purpose that the distance between the two supports is adjustable is achieved, drag heads of different sizes can be replaced by the drag suction dredger, and compared with a traditional structure with the supports at the two ends fixed, the distance between the two supports can be rapidly adjusted, and the drag suction dredger is convenient to use. And the rake heads with different sizes can be conveniently replaced, so that the rake heads can better meet the specific requirements of different soil stratums in a dredging area, and the adaptability and efficiency of operation are improved.

The invention provides a big data-based building construction safety assessment method, which comprises the following steps of: acquiring a tension distribution gradient, a local stress peak value, a tension fluctuation frequency and a pulley contact surface friction coefficient of a tower crane steel wire rope under a dynamic working condition, and determining a dynamic stress distribution characteristic of the steel wire rope; performing real-time data screening and peak value identification processing on the dynamic stress distribution characteristics to obtain a stress concentration coefficient distribution diagram of each measuring point, and determining a tension concentration area with the stress concentration coefficient higher than a preset threshold value; carrying out weighted adjustment on the non-uniform wear characteristics, calculating to obtain the surface wear depth, the wear particle size and the weight change of the contact surface temperature rise under different working conditions, and obtaining the real-time wear index weight distribution; and aiming at the real-time wear index weight distribution, combining the tension distribution gradient and the wear region area in the historical operation data, and analyzing and predicting the change trend of the surface roughness of the steel wire rope through wear trend fitting and load history to obtain a residual life prediction value.

The invention discloses a mine hoisting system steel wire rope monitoring method based on AI vision. The method comprises the specific steps that S1, an image sequence is collected; s2, extracting vibration displacement of the steel wire rope; s3, determining a vibration fundamental frequency; s4, calculating the tension of the steel wire rope; and S5, monitoring data output and intelligent diagnosis. According to the method, nonlinear interference and error accumulation of a traditional indirect measurement method are avoided fundamentally; sub-pixel displacement analysis and time sequence filtering are combined, and the dynamic measurement precision can be within + / -2%; single-rope independent monitoring is realized, and the technical blank of the industry is filled; unique intelligent diagnosis capability is provided, and the leap of safety management quality is realized; and full-period dynamic monitoring is realized, and complete data support is provided.

The invention belongs to the technical field of mechanical parking, and particularly relates to a rear cantilever type two-wheeled electric garage lifting device which comprises a steel frame structure, a lifting driving assembly, at least one upper-layer vehicle carrying plate, a lower-layer vehicle carrying plate, a drag chain, a fence and a walking track. Wherein the steel frame structure comprises a top cross beam and a pair of channel steel rails which are arranged on the rear side of the equipment in the vertical direction and are mounted face to face, and a closed lifting guide channel is formed; the inner wall face of the channel steel rail is a rolling contact face of the lifting walking wheel, and an opening of the channel steel rail faces forwards, so that the vehicle carrying plate is only restrained and guided by the rear side rail in the lifting process, the front area is completely opened, and a user can conveniently push in or push out the two-wheel electric vehicle. The structure that a single lifting point is matched with four lifting traveling wheels ensures that the vehicle carrying plate is kept in a horizontal posture in the whole lifting process, and the phenomena of inclination, shaking or clamping stagnation are avoided; the steel wire rope tensioning assembly automatically adjusts tension, loosening slipping or too tight breakage is avoided, and long-term reliable operation is guaranteed.

The invention provides a steel wire rope nondestructive detection device and method, the detection device comprises a shell, a signal processing module and a plurality of probes, the shell is provided with a detection cavity, the detection cavity penetrates through the shell along the axial direction of the shell, and the detection cavity is used for placing a steel wire rope; the plurality of probes are arranged on the inner wall of the detection cavity, and each probe is connected with the signal processing module through a wire; the probe comprises an excitation coil and two detection coils, the two detection coils are located on the two sides of the excitation coil, and the excitation coil and the detection coils are coaxially arranged, so that the detection coils can be most effectively coupled with eddy current magnetic field signals generated by the excitation coil and modulated by defects, and the signal acquisition efficiency is improved.

The invention discloses an outer containment dome steel mold hoisting structure and method, and belongs to the technical field of civil construction. The hoisting structure comprises a plurality of lifting lugs, a lifting hook, a plurality of steel wire ropes, a plurality of guide assemblies, a plurality of annular limiting assemblies and a plurality of radial limiting parts; the plurality of lifting lugs are fixed on the outer side of the dome steel mould of the outer containment; the lifting hook is connected with the plurality of lifting lugs through a plurality of steel wire ropes to lift the dome steel mould of the outer containment; the guide assembly comprises a guide column and a plurality of pairs of guide limiting pieces; the guide column is vertically fixed at the top of the outer containment; the guide limiting pieces are fixed to the outer side of the outer containment dome steel mold, the multiple pairs of guide limiting pieces are vertically distributed, and each pair of guide limiting pieces is arranged on the two sides of the corresponding position of the guide column; the annular limiting assembly comprises a shell annular limiting piece and a steel mold annular limiting piece. The radial limiting piece is fixed to the top of the outer containment and located on the outer side of the in-place position of the dome steel mold of the outer containment. The method has the advantages of high efficiency, project progress optimization, stable and reliable working quality and the like.

The invention discloses an elevator control reminding and fault self-diagnosis method and system, and the method comprises the steps: installing acceleration, temperature, pressure and displacement sensors at preset parts of an elevator car, a motor, a steel wire rope and a door system, and collecting operation data in real time. Performing data preprocessing, cleaning wrong data, normalizing and extracting key feature parameters; and then, a state evaluation model constructed based on historical data and expert experience is used for judging the running state of the elevator, and normal, early warning and fault grades are divided. According to an evaluation result, the system executes corresponding control reminding operation, a fault diagnosis program is started when a fault occurs, fault types and reasons are accurately positioned, and part of faults can be self-repaired. Meanwhile, diagnosis and processing conditions are fed back, and a fault database is updated. The elevator running safety and reliability are remarkably improved, the maintenance cost is reduced, and the safety of elevator passengers is guaranteed.