1521 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 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 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 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 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 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 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 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 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 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 invention provides a traveling crane double-beam portal crane, and relates to the technical field of cranes, the traveling crane double-beam portal crane comprises a plurality of supporting columns, a group of cross beams are mounted at the upper ends of the supporting columns, guide rails are arranged on the upper sides of the cross beams, and a traveling assembly is mounted on the upper sides of the guide rails in a sliding manner and comprises a traveling frame; a group of walking wheels are arranged on two sides of the bottom of the walking frame; cleaning liquid is stored in the water storage tank in advance, so that when the water feeding pump is started, the cleaning liquid is conveyed outwards, the cleaning liquid is distributed in the first series connection pipe through the first three-way valve, and the liquid is conveyed into the corresponding cleaning assemblies through the first butt joint pipe arranged on the pipe body of the first series connection pipe; and the drainage hole is formed in the inclined position of the water storage tank, so that spraying of the cleaning liquid is achieved, the cleaning assembly can preliminarily clean the guide rail at the current position, and it is guaranteed that oil stains on the guide rail are discharged in cooperation with the cleaning brush roller.

The invention relates to the technical field of gantry cranes, in particular to a gantry crane stroke position accurate detection device which comprises two symmetrical positioning rails, pulley seats, a gantry crane frame, a mounting frame, fasteners and anti-skid sleeves, positioning pin holes are symmetrically formed in the tops of the two positioning rails in the axial direction, and the pulley seats are arranged on the pulley seats. Pulley seats are slidably connected to the tops of the positioning rails, a gantry crane frame is mounted between the two pulley seats, a mounting rack is arranged on the bottom surfaces of the middles of trusses of the two pulley seats, fasteners are connected to the two sides of the mounting rack, anti-skid sleeves are arranged at the bottoms of the fasteners on the two sides, and the anti-skid sleeves are slidably connected with the upper parts of the positioning rails. Rigid mechanical constraint is formed through the two-way guide rails and the anti-skid wheels on the two sides, the deviation trend of the gantry crane in the walking process is forcibly corrected, the operation stability is improved, and position measurement errors caused by track deviation are avoided.

The invention relates to the technical field of portal cranes, in particular to an intelligent safety monitoring system for a portal crane, which comprises a rigidity calculation module used for generating a real-time rigidity attenuation rate of a speed reducing mechanism from a vibration component, load distribution, burst energy and an impact counting rate through a rigidity calculation model based on a gear tooth collision theory; the crack prediction module is used for generating a prediction crack type and a crack degree grade according to the real-time rigidity of the speed reducing mechanism, the crack vibration component and a crack prediction model based on the improved CNN; and the safety management module is used for adjusting the main beam load distribution safety coefficient of the portal crane according to the predicted crack type and crack degree grade. According to the method, the real-time stiffness attenuation rate of multi-sensor fusion is calculated, the data processing amount of the improved CNN model is reduced, predictive monitoring of major faults of the speed reducing mechanism of the gantry crane is achieved, the safety of the gantry crane is remarkably improved, and the service life of the gantry crane is remarkably prolonged.

The present invention belongs to the technical field of road transportation, and particularly relates to an integrated transportation and erection construction method for prefabricated bridges. By reasonably planning the construction processes within a fixed time period, using the completed bridge structure as a transportation channel, enabling the gantry crane and the pier erection machine to cooperate with each other, the time for erecting the main body of the pier and for connecting the main body of the pier to the bottom bearing platform is simultaneously used to transport the main body of the precast box girder and to implement the process of erecting the main body of the box girder. The night time is used for the equal-strength process of the cast-in-place concrete between the main body of the pier and the bearing platform, ensuring the initial conditions for the next erection cycle. Each cycle is gradually iterated, and finally the integrated transportation and erection construction of the overall prefabricated bridge is completed. The present invention cleverly avoids the problem in the prior art that the cast-in-place concrete cannot bear weight during the equal-strength process, which prolongs the construction duration of each span of the prefabricated bridge, and further prolongs the integrated erection construction period of the overall bridge, increasing the construction cost.

The utility model provides an assembly type subway station side wall installation translation device which comprises a base. The platform is arranged on the upper portion of the base and slidably connected with the base through a sliding assembly; one end of the first driving device is connected with the platform, and the other end is connected with the base through a first supporting piece for driving the platform to move; the guide wheel assembly is located in the base; one end of the second driving device is connected with the guide wheel assembly, the other end of the second driving device is connected with the base through a second supporting piece, and the second driving device is used for driving the guide wheel assembly to longitudinally move to stretch or retract; and the power device is arranged on the base, connected with the first driving device and the second driving device and used for providing power for the first driving device and the second driving device. The assembly type subway station side wall installation translation device is small in occupied area, rapid in assembly and movement and easy to operate, can effectively replace the function of a trolley when used in cooperation with a gantry crane, improves the assembly speed and reduces the manufacturing cost.

The invention discloses a construction method for replacing an elastic base plate of a ballastless track of a high-speed railway, which belongs to the technical field of tracks and comprises the following specific steps of: 1, preparing construction, 2, marking and acquiring original data, 3, mounting a lifting appliance, and connecting a portal crane with the lifting appliance through a steel wire rope, 4, lifting a track plate and separating the track plate from a base plate. 6, replacing an elastic cushion layer; 7, carrying out auxiliary fine adjustment falling and mounting; 8, carrying out track bed slab reset measurement; and 9, starting the next work construction until the construction of the whole rectification and replacement section is completed. The problems that in the prior art, the replacement construction efficiency of the ballastless track elastic base plate is low, the precision is difficult to guarantee, and the construction difficulty is large under the complex working condition are solved, operation is easy and convenient, and practicability is high.

The invention relates to a calibration installation method and system for an underwater square block, and belongs to the technical field of underwater square block installation. The calibration and installation method of the underwater square block comprises the steps of square block calibration, square block hoisting, navigation route generation and square block hoisting guidance. Wherein the square block calibration step comprises the following steps: after the square block is prefabricated, mounting a target on the top surface of the square block, scanning the top surface of the square block and the target arranged on the top surface of the square block through a three-dimensional laser scanner at the top of the gantry crane, and obtaining the size parameters of the top surface of the square block and the relative position relationship between the feature points of the target and the top surface of the square block. According to the calibration and installation method of the underwater square block, the size parameters of the square block and the position of a target feature point are accurately obtained through a three-dimensional laser scanner, and a reliable data basis is provided for subsequent hoisting; the measurement and control device monitors the position and posture of the square block in real time and automatically generates a navigation route in combination with design position coordinates, and it is ensured that the square block can be accurately hoisted to the target position.

The invention relates to the technical field of three-dimensional modeling, in particular to a three-dimensional rapid modeling method and system for a gantry crane. The method comprises the following steps: obtaining structural parameter template data and installation site wind condition data of the gantry crane; establishing a parameterized geometric model template according to the structural parameter template data, and determining a wind load sensitive part distribution diagram in combination with the wind regime data of the installation site; dividing structural modeling precision grades according to the wind load sensitive part distribution diagram, and generating a differentiated grid density distribution scheme; constructing multi-precision hybrid modeling framework data according to the differentiated grid density distribution scheme and the parameterized geometric model template; key geometric feature parameters are extracted based on multi-precision hybrid modeling framework data, and a parameter adaptive adjustment rule is established according to a wind load sensitive part distribution diagram; according to the method, geometric weak points are positioned through wind load pre-evaluation, local grid encryption and geometric optimization are automatically executed, and the reliability of model safety evaluation is improved.

The invention relates to an intelligent trestle control system for a molten iron combined transportation dam-crossing railway, which comprises a monitoring device and a plurality of subsystems, and is characterized in that each subsystem comprises a water level measuring device for measuring the water level condition in real time; the intelligent electric hydraulic mechanism is used for automatically adjusting the height of the bridge pier according to the real-time water level condition so as to adjust the height of the trestle; the gantry crane control system is used for controlling transportation of containers between a railway train and a cargo ship and comprises the steps that after the cargo ship is parked on one side of a trestle, the containers on the cargo ship are hoisted to the train parked on the trestle, or the containers on the train parked on the trestle are hoisted to the cargo ship parked on one side of the trestle; the rapid gate opening and closing device is used for controlling the gate opening and closing state of the flood control gate groove section based on the real-time water level condition; and the monitoring device is used for being connected with the subsystems through the multi-modal data fusion processor and executing cooperative control.

The invention relates to a port gantry crane maintenance method based on a large model multi-intelligent framework. The method comprises the following steps: acquiring a task request of a user; the task request is decomposed based on a preset large language model, a service workflow for equipment maintenance is generated, and executable sub-modules of the service workflow comprise an equipment state monitoring module, a fault diagnosis processing module and an equipment life prediction module; and for the executable submodule of the service workflow, calling a corresponding model, and taking an output result of the preset large language model based on the executable submodule as a context to generate response content. According to the invention, the large language model is introduced as a core decision engine, and the intelligent maintenance of the port gantry crane is realized in combination with a multi-intelligent architecture.

The invention discloses a gantry crane for lifting an overweight steel box girder and a construction method thereof, the gantry crane comprises a first support frame and a second support frame, the first support frame is arranged on one side of the second support frame, sliding cross beams are fixedly mounted at the upper ends of the first support frame and the second support frame, and hoisting devices are movably mounted on the inner sides of the sliding cross beams; the hoisting device comprises a hoister, a sliding clamping seat, a fixed clamping plate, a rotary table and a hoisting frame, the hoisting device is fixedly installed on the outer surface of the upper end of the sliding clamping seat, the fixed clamping plate is fixedly installed on the outer surface of the lower end of the sliding clamping seat, the rotary table is arranged on the lower portion of the sliding clamping seat, and the hoisting frame is movably installed on the outer surface of the lower end of the rotary table. The lifting frame and the rotary table are movably connected through a butt joint shaft; the steel box girder hoisting and moving device is provided with a fixed hoisting and moving structure, the phenomenon that the steel box girder shakes during moving is avoided, meanwhile, the stability of the steel box girder during hoisting and moving operation is improved, and butt joint installation operation can be rapidly completed.

The invention discloses a hydraulic lifting container gantry crane which comprises a gantry crane main beam, a movable trolley frame is arranged on the gantry crane main beam, two trolley wheel sets in rolling contact with the gantry crane main beam are installed on each of the left side and the right side of the bottom of the trolley frame, and a container lifting appliance is arranged below the trolley frame. Through the driving of the hydraulic cylinder and the design of the pulley blocks, the distance from the lifting point of the lifting appliance to the highest point of the crane is reduced to be less than or equal to 3.2 m, under the safety distance of 8.3 m clearance, the lifting height of 5000 mm can still be realized, the problem of low clearance scene pain points is solved, when the workshop clearance is relatively high, four movable pulley blocks are selected, and when the workshop clearance is only 8.3 m, a container with the full load of 20 feet needs to be carried. The lifting requirement can be met by switching to six movable pulley sets, the whole lifting mechanism does not need to be replaced, the gantry crane is suitable for carrying scenes of containers with different clearances and different specifications, and the flexibility of the gantry crane is far better than that of a traditional winch type gantry crane.

The utility model relates to the technical field of material loading and transporting, in particular to a bag material transfer system which comprises a car loader, a track is arranged below the car loader, and a transfer trolley is arranged on the track. A crane device is arranged above the track and beside the car loader; the transfer trolley comprises a moving trolley arranged on the track, a base is arranged on the moving trolley, and two outer side protection plates are installed on the base. According to the utility model, the material package can be quickly loaded into the tray or the ton bag, and the tray or the ton bag is transferred to a preset position through the crane device, so that the follow-up operation is facilitated, and the loading and unloading efficiency of the material package is greatly improved.

The invention discloses a power control system of a container gantry crane, which relates to the technical field of crane power control, and is characterized in that operation condition data of a modularized lithium battery is acquired, the health state is evaluated, basic battery state information is formed, a short-period operation evaluation model is constructed, and a load prediction curve is output; the method comprises the following steps: carrying out modular battery management, short-period working condition prediction, dynamic power distribution and feedback scheduling, distributing power, adjusting the priority of each driving system, matching a power demand, planning a feedback path, identifying a replacement module, executing a hot plug operation, collecting real-time state data, and carrying out feedback processing. The load prediction of the driving system, the accurate evaluation of the battery state and the optimization of the energy path are realized; and by combining a hot-plug battery replacement structure and closed-loop monitoring of the whole machine state, the power supply regulation and control flexibility and the system operation stability are improved, and the method is suitable for power control of the container gantry crane in a high-frequency operation scene.