2096 results about "Gantry crane" patented technology

The invention discloses a multimodal transport cargo receiving, unloading and transferring multi-machine cooperation method and system. The multimodal transport cargo receiving, unloading and transferring multi-machine cooperation method comprises the steps of obtaining freight basic elements, constraint conditions and real-time environment information, and assigning a matched number of unmanned transfer vehicles and unmanned aerial vehicle sets; generating an initial optimal path; and the local path of the initial optimal path is adjusted in real time, the unmanned transfer vehicle and the unmanned aerial vehicle set advance to the unloading destination according to the global optimal path, and multi-vehicle cooperative cargo unloading is completed according to the conflict-free motion trail. A multi-machine cooperation technology is adopted, advanced technologies such as unmanned driving, the Internet of Things and an artificial intelligence algorithm are fused, the unmanned transfer trolley, the unmanned aerial vehicle and the intelligent gantry crane can work efficiently and cooperatively, various operation scenes such as indoor and outdoor switching, place layout difference and extreme weather can be dealt with, cargoes can be rapidly and accurately received, unloaded and transferred, and the working efficiency is improved. And the efficiency of multimodal transport is greatly improved.

The invention provides an intelligent fault diagnosis method and system for a portal crane. The method comprises the following steps: acquiring real-time working condition data and strain monitoring data of the portal crane; the data is preprocessed; carrying out trend analysis by adopting a comparative analysis algorithm based on the actual strain monitoring data and the predicted strain data; carrying out trend analysis by adopting a comparative analysis algorithm based on the actual stress and the theoretical stress; establishing a fault decision tree based on the trend analysis result, man-made fault judgment and fault feature data of a historical fault library; based on a strain signal trend analysis result, combining a fault decision tree and a fault knowledge graph, and constructing a fault diagnosis algorithm to carry out fault diagnosis on the main beam; and updating the fault decision tree based on the diagnosis result data and the early warning result data. The equipment state of the portal crane can be monitored in real time, fault diagnosis and intelligent early warning can be carried out on the equipment according to the collected data, and faults can be repaired in time, so that the safety of the portal crane during production is improved, operation accidents of the portal crane are avoided, and the working efficiency of the portal crane is improved.

The invention relates to a steel structure trestle hoisting device, belongs to the technical field of bridge construction machinery, and is used for solving the technical problems that traditional hoisting equipment is low in mounting precision, poor in posture adjusting efficiency and easy to deform in structure. The device comprises a portal crane main body, wherein an electric trolley of which the stroke is matched with the width of a trestle is arranged at the lower part of a fixed cross beam; the dynamic self-adaptive balance assembly adjusts load balance in real time through a rigid frame, a three-axis tilt angle sensor, a balancing weight and an electric push rod. The lifting appliance group adopts a servo motor to drive four lifting hooks to cooperatively work, and a laser positioning assembly is combined for precise positioning; the digital twinning cooperative control system integrates prediction, control logic and a pre-judgment type intervention module through an embedded industrial controller, analyzes data of an encoder and a pressure sensor in real time, predicts deformation and gravity center shift, and dynamically regulates and controls the hoisting speed, the transverse position of a trolley and the balance weight displacement. The device is suitable for high-precision rapid installation of the large-span steel structure trestle, and the construction safety and efficiency are improved.

The invention provides an overhead and portal crane lifting appliance control method based on multi-stage model predictive control, and relates to the field of data processing. The method comprises the following steps: firstly, acquiring a control parameter and an initial state variable so as to define an operation boundary and an initial state, and establishing a dynamic model containing a coupling relationship among a trolley acceleration, a sling rope length acceleration and a sling swing angle; acquiring obstacle distribution by using space sensing equipment, and calculating the dynamic safety height of the lifting appliance by combining obstacle parameters and control parameters; judging whether the lifting appliance is in an obstacle avoidance stage or a target tracking stage according to the initial state variable and the dynamic safety height; constructing a model prediction controller and dynamically adjusting a state weight matrix and a control input weight matrix; finally, a control input sequence is generated through an optimization algorithm, and track safety and attitude stability control of the lifting appliance is achieved. According to the technical scheme, the swing angle of the lifting appliance is restrained, meanwhile, the obstacles are effectively avoided, and the safety of the lifting appliance in the whole operation process is guaranteed.

The invention provides a multidirectional adjustable bucket welding device, which relates to the field of bucket welding processing, and comprises an outer frame, a gantry crane fixedly connected to the top of the outer frame, an electric hoist slidably connected to the bottom of the gantry crane, a hanging bracket fixedly connected to the bottom of a hanging cable of the electric hoist, and two groups of electric telescopic rods fixedly connected to the left and right sides of the hanging bracket, the side end of the telescopic part of the electric telescopic rod is fixedly connected with a circular plate, the side end of the circular plate is fixedly connected with a conical head, the telescopic part of the telescopic cylinder 8 can drive the transverse frame to translate downwards by controlling the telescopic cylinder 8 to operate, the telescopic cylinder 8 can drive the arc cover plates on the two sides to press the outer curved surface of a wrapping plate downwards, and the wrapping plate can be clamped through cooperation with an arc support of the inner curved surface of the wrapping plate; and meanwhile, the curvature of the wrapping plate can be fixed, so that the side plate is prevented from deviating during welding, the welding efficiency of the side plate is improved, and the problem that the welding machining efficiency of the bucket is reduced in the process that the curvature of an inner curved surface of an existing bucket wrapping plate is fixed through a threaded telescopic rod is solved.

A method for installing an energy-saving guide wheel in a ship manufacturing process relates to the technical field of ship manufacturing, and comprises the following steps: installing a stern shaft tube casting and the energy-saving guide wheel under a tire, placing an adjustable platform in place according to a ground sample line, cutting the allowance of the energy-saving guide wheel, placing the energy-saving guide wheel on the adjustable platform, and carrying out simple field cutting and repairing. Meanwhile, a groove of a cut and trimmed part is processed, then the energy-saving guide wheel is adjusted in place through a chain block, finally one-time accurate positioning is achieved, the situation that multiple times of cutting positioning occur when the energy-saving guide wheel and a stern shaft tube casting are installed is avoided, manpower and material resources are reduced, meanwhile, the matching time of a gantry crane is shortened, and the production efficiency is improved. And the cutting gap is reduced from the original 30 mm to the present 3-5 mm, so that the use amount of a large amount of welding materials is saved, the purposes of saving energy and reducing consumption are achieved, and the welding quality is improved.

The invention relates to the technical field of safety monitoring of hoisting equipment, and discloses a safety detection and early warning system and method for an intelligent portal crane, and the system comprises a front-end sensing module which is used for collecting the operation data and operation pictures of the portal crane in real time, and carrying out the fusion; the voiceprint recognition module is used for assisting in judging whether internal parts make abnormal sounds or not; the data processing module is used for monitoring operation data of the portal crane through a machine learning algorithm, identifying abnormity and evaluating a health state; and the terminal display module is used for displaying the operation state and the operation data of the portal crane and displaying the monitoring result and the alarm information to a manager. According to various operation data, the integrated machine learning algorithm is utilized, abnormal modes are accurately recognized, and whether the equipment has potential safety hazards or not is rapidly judged, so that early potential faults of the equipment are found in time, the accuracy of fault early warning is improved, and the accidental shutdown time and the maintenance cost are reduced.

The invention relates to an equipment collaborative scheduling method in a sea-railway combined transport port mixed mode and electronic equipment, and belongs to the technical field of port engineering. The method comprises the following steps: by taking preset operation sequence connection, safe operation of a rail-mounted gantry crane and waiting time of each device as constraints, unloading a container onto a container truck by the rail-mounted gantry crane, and then transporting the container to a wharf by the container truck to wait for quay crane operation; a scheduling model is established according to the working condition of a transfer mode that the rail-mounted gantry crane stacks the containers needing to be stacked to the designated container positions of the railway storage yard; the scheduling model is solved based on the grey wolf algorithm introducing the chromosome uniform crossover strategy, a final equipment cooperative scheduling scheme is obtained, and the problem that in the prior art, research on the scheduling mode is single in actual work is effectively solved.

The invention relates to the field of automatic crane control, in particular to a gantry crane remote control platform access system and method, and the system comprises a task prediction module, a task distribution module, a task execution module and an exception handling module. The task prediction module generates task prediction data by collecting the task pool and the equipment state data; the task allocation module dynamically generates a task allocation scheme by using a reinforcement learning optimization algorithm and a simulated annealing algorithm; the task execution module generates control path data through real-time data acquisition and multi-modal data fusion, and controls equipment to execute tasks; and the exception handling module predicts a fault through a time sequence model and implements a task relay and dynamic recovery mechanism. According to the method, the efficiency of task scheduling, the precision of a control path and the stability of system operation are improved, and the execution efficiency of a remote control task is remarkably improved.

The utility model discloses a rapid positioning and grabbing device of a container portal crane, and relates to the technical field of cranes. The clamping device comprises a fixing plate, symmetrically-distributed clamping blocks are arranged at the four corners of the fixing plate in a penetrating mode, the clamping blocks are in an L shape, a first connecting plate is fixedly arranged at the ends, close to the fixing plate, of the clamping blocks, and a second connecting plate is rotationally arranged at the end, away from the clamping blocks, of the first connecting plate. First fixing blocks are fixedly arranged at the ends, away from the first connecting plate, of the two second connecting plates. Through mutual cooperation of a fixing plate, a clamping block, a first connecting plate, a second connecting plate, a first fixing block, a second fixing block, a first positioning plate, a rotating rod, a rotating wheel, a positioning rod, a third connecting plate, a connecting rod, a first bevel gear, a second positioning plate, a second bevel gear and a first motor, a clamping piece is driven by the motor to rotate, and therefore a container is grabbed; and a pneumatic mechanism is not needed, the structure is simple, and operation is convenient.

The invention relates to the technical field of data analysis, and discloses an intelligent safety guarantee platform for a crane. The platform is characterized in that a data acquisition module acquires crane operation parameters through a sensing network and performs feature extraction; the state monitoring module monitors and evaluates the states of steel wire rope abrasion and brake clearance key components; the basic operation and maintenance module formulates a maintenance plan based on the health indexes and historical data; the operation guarantee module carries out safety assessment on hoisting operation and generates a control scheme; the system management module monitors a platform operation process; and the knowledge base module performs association analysis on various data and constructs an intelligent operation and maintenance knowledge base. The method is suitable for various cranes such as portal cranes, bridge cranes and gantry cranes specified in GB / T 20776, and intelligence and precision of the crane maintenance process are achieved.

The invention discloses a large transformer auxiliary assembling platform, which comprises mounting racks, a lifting platform, a lifting mechanism and a sleeving mechanism, two groups of mounting racks are mounted on the ground, the two groups of mounting racks are oppositely arranged, a positioning and clamping assembly for an iron core is arranged between the two groups of mounting racks, and the positioning and clamping assembly can be lifted and lowered; a lifting platform capable of ascending and descending is arranged on each group of mounting frames, a lifting mechanism is arranged between the two groups of mounting frames, two ends of the lifting mechanism are mounted on the two groups of mounting frames, the lifting mechanism ascends and descends on the mounting frames, sleeving mechanisms are arranged on the two groups of mounting frames, and a winding sleeves a phase column through the sleeving mechanisms; when the winding is nested, the lamination at the top of the transformer iron core and the upper clamping piece are lifted, so that a joist barrow is not needed for lifting and dismounting, meanwhile, the upper clamping piece and the lamination are lifted, and after the winding is nested, the lamination and the upper clamping piece are convenient to mount.

The invention discloses a goods yard container positioning and identification system based on Beidou RTK positioning, the management level of a container goods yard is remarkably improved by applying Beidou RTK positioning, container number identification and visual analysis modules, the accurate position information of a gantry crane or a reach stacker is obtained in real time through the Beidou RTK technology, the positioning accuracy reaches the sub-meter level, and the positioning accuracy reaches the sub-meter level. The container number identification module uses a camera and a machine learning technology to automatically identify container numbers and replace manual input, the accuracy and efficiency of data entry are improved, informatization management of containers is realized, and the visual analysis module draws a goods allocation electronic map, so that the management efficiency of the containers is improved. Information such as the position, the container number, the size and the weight of the container is visually displayed, the state of the container position is monitored in real time, managers are assisted to optimize operation plans, and problems are found and solved in time.

The invention relates to the technical field of image recognition, in particular to a method and system for early warning below a portal crane, and the method comprises the steps: obtaining site environment sensing data, constructing a space map, and recognizing the position and motion state of equipment in real time; predicting an equipment motion track and a load swing range, and generating a predicted dangerous area; image acquisition devices are installed at a plurality of fixed positions, field images are acquired, an image recognition model is used for detecting a target, and the spatial position and the posture state of the target are obtained; tracking a target trajectory based on a motion estimation model and predicting a future position of the target trajectory; dynamically switching the image acquisition devices according to the motion state of the equipment; and comparing the future position of the target with the predicted dangerous area in real time, when the future position and the predicted dangerous area coincide, carrying out potential interference prediction, calculating predicted interference time, and carrying out grading processing in combination with the attitude state of the target. According to the invention, equipment dynamic perception and personnel behavior prediction are realized, and the intelligent protection capability of the operation area is improved.

The invention provides a tire crane automatic control system and method based on embedded edge calculation, and relates to the technical field of port automation, the tire crane automatic control system comprises a sensing and detecting layer used for collecting motion states and operation environment information of a cart, a trolley and a lifting appliance of a tire crane in real time; the core control layer is used for processing sensor data in real time and generating a control instruction; the action execution layer comprises a PLC gateway, a main control PLC and a driving motor, the PLC gateway communicates with the core control layer and is used for receiving a control instruction, and the main control PLC drives the motor to execute corresponding actions of a cart, a trolley and a lifting appliance; and the task management layer comprises an intelligent remote control console, is in communication connection with the core control layer, and is used for issuing the operation task instruction to the core control layer and receiving the system state data from the core control layer. Unmanned operation of the tire crane can be achieved, and a complete technical base is provided for port automation.

The invention relates to the technical field of crane control, and discloses a long-distance collaborative operation method for multiple gantry cranes, which comprises the following steps: constructing a global coordinate system; acquiring position data of dynamic equipment of each crane in real time and mapping the position data to a global coordinate system to form an equipment coordinate set; synchronously processing all equipment coordinates through a central processing unit, and generating a position sharing data set; meanwhile, environment obstacle data are collected and mapped to a global coordinate system, and spatial constraint conditions are established; generating a first path scheme by adopting a collaborative planning algorithm based on the position sharing data and the spatial constraint condition; monitoring the operation deviation in real time in the execution process, and obtaining an optimized second path scheme through deviation correction; and finally, dynamically monitoring environment change, triggering obstacle avoidance path updating when the environment change exceeds a preset threshold value, and outputting a collaborative operation scheme. According to the method provided by the invention, multi-machine cooperative path planning and dynamic obstacle avoidance under a cross-spatial scale are realized, the conflict risk is reduced, and the operation continuity and safety are improved.

The utility model relates to the technical field of cranes, and provides a portal crane control box which comprises a cabinet body, heat dissipation grooves which are evenly distributed are formed in one side of the cabinet body, a filter plate covers the area of the heat dissipation grooves, an electric hoist control unit and a walking vehicle control unit are integrated in the cabinet body, a rotatable dust collection piece is arranged on the filter plate, and the dust collection piece is connected with the electric hoist control unit and the walking vehicle control unit. A dust collection fan is arranged on the cabinet body; the cabinet body is provided with a signal receiver used for receiving a control signal sent by the remote controller and a controller used for processing the signal and making a corresponding control command; the electric hoist control unit and the walking vehicle control unit are integrated in the cabinet body and share one control box, circuit arrangement is simplified, remote control is adopted for operation and control, operation is fast and convenient, the use efficiency of the crane is greatly improved, in addition, when a filter plate needs to be cleaned, dust adhering to the filter plate is sucked away through suction force generated by a dust suction fan, and the cleaning efficiency is improved. The filter plate is smooth, and the heat dissipation effect of the control box is ensured.

The invention relates to the technical field of wharf construction, in particular to high-pile wharf beam and slab erection integrated equipment which comprises a cross beam, and a longitudinal beam capable of transversely moving is arranged at the top of the cross beam; the hoisting trolley can longitudinally move on the longitudinal beam, and the hoisting trolley is used for hoisting the beam plate; the supporting leg assembly supports the cross beam, a longitudinal moving rail is arranged at the bottom of the supporting leg assembly, and the supporting leg assembly longitudinally moves on the longitudinal moving rail; the two ends of the longitudinal beam are provided with cantilever sections, the cantilever sections extend to the longitudinal outer sides of the supporting leg assemblies, during beam lifting, the longitudinal moving rails are laid on the long-piled wharf, the supporting leg assemblies drive the cross beam to longitudinally move to the edge of the long-piled wharf on the longitudinal moving rails, then the crane carriage is moved to the cantilever sections, and the crane carriage can move to the outer side of the edge of the long-piled wharf; and the crane carriage can hoist the beam plate outside the long-piled wharf, so that the step of reversing the beam through equipment such as a gantry crane and a beam transporting vehicle is avoided, the construction procedure is simplified, and the construction efficiency of the long-piled wharf is improved.

The utility model relates to the technical field of cranes, in particular to a shipbuilding portal crane, which is characterized in that during hoisting, after a worker operates a hoisting component to hoist a workpiece, a moving component is matched with a sliding rail, so that the moving component drives the hoisting component to move left and right, and the left and right hoisting of the workpiece is further realized; the flexibility is improved; comprising moving trolleys, supports, a cross beam, a sliding rail and strip-shaped openings, two moving trolleys are arranged at the bottom end of each support, the cross beam is arranged between the two supports, the cross beam is provided with a set of strip-shaped openings, the sliding rail is arranged at the top end of the cross beam, the moving assembly is arranged on the sliding rail in a sliding mode, and the lifting assembly is installed on the moving assembly.

The invention relates to the technical field of bridge construction, and discloses a guide-beam-free incremental launching construction hoisting balance weight structure for bridge construction, which comprises an incremental launching platform and a gantry crane above the incremental launching platform, the counterweight assembly comprises two slide rails, two wheel carriers, two groups of rollers, a base, a plurality of counterweight blocks, two groups of guide wheels and two pull ropes; and the lubricating assembly is used for lubricating the two groups of rollers. Through the arrangement of the counterweight assembly, the base can move reversely along with the movement of the gantry crane, self-adaptive position adjustment of the multiple counterweight blocks is achieved, the gantry crane and the multiple counterweight blocks are kept in a balanced state on the pushing platform, the bending moment and the shearing force peak value of the pushing platform are reduced, and through the self-adaptive position adjustment, the service life of the pushing platform is prolonged. And the operation of actively adjusting the position of the balancing weight by an operator is reduced, and the operation time is saved.

The utility model discloses an energy-saving and emission-reducing container portal crane, and belongs to the technical field of container portal cranes. Comprising a chassis; a main beam is fixedly mounted at the top of the underframe; the travelling crane is clamped between the inner walls of the tops of the main beams in a sliding manner; the guide rails are fixedly mounted on the top surfaces of the two sides of the main beam; fixing plate motors are fixedly mounted at the four corners of the top of the traveling crane, and a motor is fixedly mounted on one side of the fixing plate; an output shaft of the motor is fixedly connected with the roller, and the roller is in rolling fit with the guide rail; the maintenance mechanism is installed on the fixing plate and connected with the guide rail and the rolling wheels, the traveling crane moves in a guiding mode through the rolling wheels and the guide rail, the maintenance mechanism synchronously cleans the guide rail and the rolling wheels during moving, dust accumulation is avoided, oil films are smeared on the guide rail and the rolling wheels after cleaning, and the aging condition of the guide rail and the rolling wheels in the weather is reduced; the service life is prolonged, the walking resistance is reduced, the energy consumption is reduced, and the low-carbon purpose is achieved.

The invention discloses power change detection equipment for a transistor at different temperatures, and relates to the field of transistor detection, the power change detection equipment comprises an equipment shell, a sliding mechanism and a moving table are mounted in the equipment shell, the sliding mechanism drives the moving table to move, a driving mechanism is mounted on the side surface of the equipment shell, and the driving mechanism drives the moving table to move. The device comprises a driving mechanism, the output end of the driving mechanism is connected with a first driving screw, the outer side of the first driving screw is sleeved with a gantry crane, the bottom end of the gantry crane is connected with a detection mechanism, the bottom end of the detection mechanism is provided with a sealing head and a detection table, and the detection mechanism is internally provided with a controller, an air inlet mechanism and a heater. Through the arrangement of the moving table, the clamping base and the objective table, multiple sets of transistors can be fixed through the objective table, then the objective table is installed on the clamping base, and then the clamping base is moved into the equipment through the moving table, so that the multiple sets of transistors can be conveniently and synchronously detected.

The invention relates to the technical field of crane equipment, and provides a movable portal crane which comprises a portal support frame and a track, rails are laid and installed on the two sides of the bottom end of the gate-type supporting frame, braking mechanisms are arranged at the two ends of the bottom of the gate-type supporting frame, rolling wheels are movably installed at the bottom end of the gate-type supporting frame, and an electric hoist is movably installed at the top of the gate-type supporting frame. By arranging the lubricating mechanism, when a steel wire rope lifts a heavy object, through cooperation between a second gear and a forward and reverse rack, a fourth gear rotates forwards, the second rack is driven to move towards the middle at the same time, extrusion plates are made to get close, a piston is pushed to move towards one side through extrusion of a connecting rod, and lubricating oil is sprayed out from an oil outlet; when the steel wire rope moves upwards, the steel wire rope is fully contacted with the surface of the steel wire rope, so that lubrication is uniform, friction between the steel wire rope of the portal crane and parts such as a pulley and a winding drum is reduced, and the service life of the steel wire rope is prolonged.

The invention discloses an automatic identification method and system for a precast beam manufacturing process based on multi-source data. The method comprises the steps that the position and binding condition of reinforcing steel bars, the position change of a formwork, the temperature change in a steam-curing kiln, key parameters in the precast beam production process, the positions of a gantry crane and a lifting hook of the gantry crane and lifting weight information of the lifting hook of the gantry crane are obtained; the data storage and processing module automatically identifies each process in sequence through an AI algorithm; when a reinforcing steel bar binding process starts, a process early warning unit of a process early warning and precast beam process binding module automatically creates a virtual beam number associated with the process, and the process early warning unit automatically generates short message notification content according to current production line data and automatically sends the short message notification content to a related principal; and the person in charge accesses a virtual beam number list provided by the process early warning unit, selects a corresponding virtual beam number to carry out process data binding, and dynamically adjusts the virtual beam number into a real beam structure number, so that automatic identification of the prefabricated beam manufacturing process is realized.

The invention provides a gantry crane tire monitoring method, and relates to the technical field of tire pressure monitoring. Comprising the following steps: S1, arranging a pressure sensor for monitoring tire pressure in each tire of the gantry crane; s2, all the pressure sensors upload monitored tire pressure data to the cloud platform every first set time; s3, after the cloud platform receives the tire pressure, a plurality of first sequences are constructed, and the first sequences comprise tire pressure data, uploaded at different times, of the same tire; s4, whether tire pressure abnormity exists or not is judged according to the first sequence; and S5, if the tire pressure is abnormal, sending an automatic inflation and deflation request or sending a tire damage alarm. According to the invention, automatic monitoring of the tire pressure is realized, different conditions of abnormal tire pressure can be accurately judged, and corresponding automatic inflation and deflation are carried out or a maintenance alarm is given out.

A portal crane damage detection method based on amplitude-variable trolley acceleration response comprises the following steps that 1, an amplitude-variable trolley-simply supported beam portal crane system is built, and an amplitude-variable trolley is arranged on a cargo boom of a portal crane; 2, an acceleration sensor is arranged on the variable-amplitude trolley, the variable-amplitude trolley moves on the cargo boom of the portal crane at the moving speed v, and the acceleration sensor collects acceleration response data of the variable-amplitude trolley in real time and transmits the acceleration response data to an FFT conversion module; 3, the FFT conversion module converts the acceleration response data of the variable amplitude trolley to obtain an acceleration spectrogram; 4, according to the acceleration spectrogram, modal parameters of the portal crane are obtained through recognition; and 5, detecting and identifying the damage condition of the portal crane according to the modal parameters or the acceleration response data. The method has the effect that the damage result of the simply supported beam portal crane can be accurately detected.

The invention belongs to the technical field of cranes, and discloses a span-adjustable electric hoist portal crane and assembling equipment thereof.The span-adjustable electric hoist portal crane comprises a left supporting frame and a right supporting frame, the bottom of each supporting frame is fixedly connected with a sliding seat, the bottom of each sliding seat is slidably clamped with a sliding frame assembly, and the top of each supporting frame is slidably clamped with a cross beam assembly; a left locking mechanism and a right locking mechanism are clamped to the top of the sliding frame assembly in a sliding mode, a hydraulic mechanism is arranged on the top of each locking mechanism, hydraulic rods are arranged on the opposite faces of the two locking mechanisms, and the fixed ends of the hydraulic rods are connected with the hydraulic mechanisms. According to the invention, the splicing assembly of the plurality of splicing sliding frames and the main sliding frame can be realized through the second connecting pieces, and the splicing assembly of the plurality of splicing beams and the main cross beam can be realized through the first connecting pieces, so that the effect of adjusting the length of the cross beam assembly or the sliding frame assembly can be realized, and the effect of adjusting the hoisting span of the crane is achieved.

The invention relates to the field of gantry crane sliding contact line carbon brush monitoring and intelligent early warning, in particular to an oil-to-electricity carbon brush height identification early warning system, which adopts various sensors to acquire temperature, vibration, images and other data of a carbon brush and a sliding contact line in real time. A temperature field, a stress field and wear rate data are generated through a data preprocessing and multi-dimensional thermal-mechanical coupling modeling method; the system is combined with an incremental learning module to continuously optimize the prediction capability of the model; through state evaluation of the carbon brush and the slide wire, the system can generate risk scoring data in real time, perform fault prediction, and trigger automatic shutdown protection or load adjustment measures under a high-risk condition. Through accurate fault identification and risk early warning, the problems of data lag and missing detection in a traditional monitoring method are effectively reduced, and the safety, reliability and intelligent management level of equipment are improved.

The invention discloses a single gantry crane dispatching system based on an intelligent optimization algorithm. The single gantry crane dispatching system comprises an urgency degree calculation module, a task urgency degree calculation module and a task urgency degree calculation module, the future task prediction module is used for determining a prediction task set through a sliding time window and calculating the discount urgency degree of a prediction task; the path planning and task sorting module is used for modeling a task scheduling problem into a state transition problem on a search tree, and gradually exploring a combined space of a task execution sequence and a moving path in the search tree by adopting an improved A * algorithm under the guidance of urgent degree discount cost to obtain an optimal task sequence; the self-adaptive parameter adjusting module is used for optimizing parameters on line based on reinforcement learning; and the event-driven control module is used for responding to task arrival, periodic refreshing, abnormal events and task completion events through the message queue and triggering dynamic rescheduling. According to the method, the problems of dynamics, diversity and burstiness of tasks in actual operation can be effectively solved, and the scheduling efficiency of large-scale logistics equipment is improved.

The utility model discloses a portal crane with a cleaning function, which comprises a portal frame, a track and a trolley, the track is fixedly arranged on the portal frame, the trolley is arranged on the track, and the portal crane is characterized in that movable frames are arranged at two ends of the trolley, cleaning structures are fixedly arranged on the movable frames, and the cleaning structures are arranged on the movable frames. The cleaning structure comprises a first cleaning roller, a second cleaning roller and a scraper, and the multiple moving frames are arranged, so that the track is cleaned through the cleaning structure; a containing structure is arranged on the movable frame, the containing structure comprises a plurality of containing plates, a plurality of fixing rods and a plurality of springs, the containing plates are detachably connected with the movable frame, the movable frame is connected with the trolley through bolts, and therefore sundries can be contained conveniently.