13128results about "Cranes" patented technology

The invention discloses a wind turbine generator hoisting construction tower drum operation system and a construction method thereof, and relates to the technical field of intelligent control. The problems that in the prior art, a static tension balance mechanism cannot restrain bending moment abrupt change, steel-concrete interface stress concentration causes microcrack propagation, the wave dynamic load compensation capacity is insufficient, and dynamic rigidity attenuation early warning is lacked are solved. Comprising a dynamic load prediction module, a multi-mode vibration suppression module, an offset compensation module and a digital twinborn decision module, a hoisting load is solved in real time through a multi-physics field coupling model and an improved time sequence deep learning algorithm, and interface crack propagation is suppressed in combination with traveling wave offset control and sweep frequency vibration. An improved Morison equation is adopted to drive a two-stage hydraulic servo to compensate a wave dynamic load, and a digital twin closed-loop correction mechanism is constructed based on a 5G URLLC protocol; the tower drum hoisting precision, the structural safety and the operation reliability under the complex working condition are remarkably improved.

The invention provides an intelligent obstacle avoidance and operation range planning method and system for a manual telescopic arm of a truck-mounted crane, and relates to the technical field of truck-mounted crane obstacle avoidance, and the method comprises the following steps: collecting environment point cloud data, truck-mounted crane attitude data and obstacle distance data, constructing a dynamic environment map, and identifying obstacle features; dividing operation areas based on the dynamic environment map and the obstacle state data, and establishing an operation space safety level model; in combination with the working space safety level model and the obstacle state data, an obstacle avoidance candidate path meeting load constraints is generated, an optimal path is selected and converted into an obstacle avoidance track and a control instruction, and finally cantilever crane obstacle avoidance is achieved; by monitoring the distance between the boom and the obstacle in real time, hierarchical control is executed, and the safety and efficiency of operation of the manual telescopic boom of the truck-mounted crane are effectively improved.

A system for performing interactions within a physical environment including: a robot base that undergoes movement relative to the environment; a robot arm mounted to the robot base, the robot arm including an end effector mounted thereon; a first tracking system that measures a robot base position; a second tracking system that measures movement of the robot base; and, a control system that uses a robot base position to at least partially control the robot arm to move the end effector along an end effector path, wherein the control system: determines the robot base position at least in part using signals from the first tracking system; and, in the event of failure of the first tracking system: determines a robot base position using signals from the second tracking system; and, controls the robot arm to move the end effector along the end effector path at a reduced end effector speed.

The invention relates to the technical field of maritime work cranes and discloses an anti-rolling and anti-seismic maritime work crane which is characterized in that a rack swing wall is arranged at the upper end of a rack column, a winch is arranged on the end side of the rack swing wall, and a main traction rope is arranged in the winch; the lower end of the main traction rope is fixedly connected with a top plate, and the lower side of the edge end of the top plate is fixedly connected with a fixing plate. According to the anti-shaking and anti-seismic maritime work crane, when the device drives a heavy object to move upwards and the heavy object shakes and deviates, an extrusion plate on the side can be extruded, at the moment, the distance between the extrusion plate and a side plate is changed, the moving distance of the heavy object can be judged through a distance sensor, and when the moving distance of the heavy object is large, data can be transmitted to a controller; and therefore, a worker is reminded that the heavy object deviates, potential safety hazards exist, the traction and pulling state of the auxiliary traction rope on the fixing plate is stressed outwards, the shaking performance of the single main traction rope during hoisting operation of the heavy object is reduced, and the stabilization effect is good.

The invention discloses a maritime work crane with a windproof high-stability structure, and belongs to the technical field of maritime work cranes, the maritime work crane is provided with a supporting column convenient to position and assemble, the upper surface of the supporting column is rotatably connected with a suspension arm, the inner surface of the suspension arm is telescopically connected with a telescopic arm, and the front side of the inner surface of the telescopic arm is rotatably connected with a guide wheel; comprising a main lifting rope rotationally connected to the outer surface of the guide wheel, and the lower side of the main lifting rope is installed on the lower surface of the telescopic arm. An angle monitoring mechanism is arranged, the angle of the rotating frame on the telescopic arm can be conveniently controlled, adjustment of a first straight tooth gear and a first rack can be matched, so that the rotating stability of the rotating frame is controlled, and adjustment of a clamping jaw and a limiting wheel is matched, so that the angle of the clamping jaw on the rotating frame is driven through the limiting wheel; therefore, the angle stability of the clamping jaw and the angle monitoring convenience of the main lifting rope are controlled, lifted goods are prevented from inclining, and danger is avoided.

The invention relates to the technical field of crane work monitoring, and discloses a tower crane visual work monitoring method based on digital twinning, which comprises the following steps: S1, establishing a digital twinning model of a tower crane, the digital twinning model comprises a geometric model, a physical model and an environment model, and the geometric model is constructed through a three-dimensional modeling tool; s2, working state data of the tower crane are collected through a multi-sensor network, and sensors comprise a force sensor, a position sensor, an acceleration sensor and an environment sensor. A three-dimensional dynamic model of the tower crane can be constructed and displayed through a digital twinborn technology and real-time acquisition of multi-sensor data, an operator knows the working state of equipment in real time through the system and obtains intelligent operation suggestions, and if abnormity is detected, the system automatically gives an early warning to prevent the equipment from having faults due to overload, vibration abnormity and other problems, so that the working efficiency of the tower crane is improved. And the working safety of the tower crane is obviously improved.

Load stability systems and methods for stabilizing swinging motions of suspended loads. The load stability systems include a fully automated, self-powered device that employs thrust to counteract and control lateral and rotational motion of an external load. The device is a temporary installment on the load, cable, or boom, and is agnostic to the platform from which it is suspended.

The present invention relates to the technical field of on-site building construction, specifically a work device and a method of use. A work device comprises a base on which a small crane boom is provided, which extends and retracts relative to the base and is equipped at one end facing away from the base with a lifting hook, which lifting hook is configured to move towards or away from a work surface; and a telescopic support arrangement connected to the small crane boom and comprising a crane basket, which crane basket is configured to move towards or away from the work surface.The present invention provides a working device and a method of use which solves the problem that, when two work operations are to be carried out simultaneously in a confined space on site, a steel portal frame has to be erected to carry out the construction work and the whole construction process is labor-intensive, time-consuming and uneconomical.

Provided is a controller with high versatility that can automatically store or raise a boom and can be commonly used for various boom devices. The controller generates a function based on a length of a boom and a distance from a derrick fulcrum of the boom to an engaging member stored in a memory, and a depression angle of the engaging member with respect to the fulcrum. Then, the controller substitutes a derrick angle of the boom detected by a derrick angle sensor into the generated function to calculate a displacement distance from a distal end of the boom to the engaging member. The controller rotates a winch while raising and lowering the boom between a lowered position and a raised position such that the calculated displacement distance is a distance corresponding to an unwinding length of a wire detected by a length sensor.

The invention discloses an automobile hoisting device, and belongs to the technical field of engineering hoisting. The problems that the gravity center of a component is difficult to accurately determine, the position and posture control of a cargo boom is inaccurate, and the load cannot be adaptively adjusted exist in the hoisting process of an existing automobile crane. The device comprises a truck crane body, a cargo boom tail end execution module, a cargo boom body sensing module, an environment sensing module and a control module. The control module is internally provided with a dynamic gravity center correction unit, a multi-sensor fusion unit and a self-adaptive load control unit, processes related sensor data based on Kalman filtering, extended particle filtering and a model prediction control algorithm, and outputs an adjustment instruction. The method is mainly used for improving the accuracy, safety and efficiency of automobile hoisting operation.

The disclosure relates to the technical field of tower cranes, and particularly to a tower crane device and a mounting method and a control method thereof. The tower crane device comprises a machine platform (1), a tower column (2) and an arm frame hoisting apparatus, the tower column (2) is rotatably connected to the machine platform (1) and the tower column (2) rotates around a center of the tower column relative to the machine platform (1), the arm frame hoisting apparatus comprises a tail frame structure (3), a sleeving frame structure (4) and an jib structure (5), the tail frame structure (3) and the jib structure (5) are both connected with the sleeving frame structure (4), the sleeving frame structure (4) is connected with the tower column (2), and the sleeving frame structure (4) ascends and descends in a height direction of the tower column (2).

The invention relates to the technical field of automatic control, in particular to a tower crane variable amplitude-rotation linkage self-adaptive control method oriented to a high wind load environment. The method comprises the following steps: step 1, acquiring an actually measured average wind speed at the height of the tower crane so as to determine a wind-induced coupling torque acting on a rotating shaft of the tower crane; 2, real-time equivalent rotational inertia generated by the dead weight of the cantilever crane, the suspended load mass and the relative position of the cantilever crane is calculated in real time; step 3, obtaining an original variable-amplitude torque instruction output by a variable-amplitude motor of the tower crane; and step 4, utilizing the rotating shaft to couple the rotational inertia so as to update the rotation angular velocity set value of the tower crane in the next control period in real time, and completing the amplitude variation-rotation linkage self-adaptive control of the tower crane. According to the invention, the safety, precision and continuous operation capability of the tower crane under complex construction conditions are improved.

The invention relates to the field of crane management, and discloses an intelligent agent control method and system.The method comprises the steps that operation parameters and operation environment data are collected in real time through multiple sensors arranged on a crane and subjected to standardization processing; transmitting the processed data to an operation state analysis model, and outputting an operation state evaluation value so as to analyze the current operation state of the crane and predict potential risks; based on the analysis result, an optimization control instruction is generated and issued to each execution mechanism controller, and corresponding mechanisms are driven to execute precise actions; through multi-source data fusion and intelligent analysis, real-time monitoring and risk assessment of the running state of the crane are achieved, the self-adaptive capacity and safety of the control system are improved, the manual intervention requirement is effectively reduced, and the method is suitable for intelligent crane control in the complex working environment.

The invention discloses a water quality sampling device and a use method thereof, and relates to the technical field of water quality sampling, the water quality sampling device comprises a fixed plate, a support seat is fixed on the top of the fixed plate, and the top of the support seat is rotatably connected with a turntable driven by a rotation driving mechanism to rotate; the rotary driving mechanism drives the rotary table to drive the stand column to rotate, the stand column rotates to drive the transverse plate and the sampling barrel below the transverse plate to move to a proper direction, and meanwhile, the winding mechanism drives the driving box to slide at the bottom end of the transverse plate, so that the sampling barrel is adaptively adjusted to a proper position according to actual sampling requirements; in addition, the sampling barrel is of a closed structure, the barrel cover can be driven by the lifting driving mechanism to descend and break away from the sampling barrel so that the water sample can enter the sampling barrel, and the barrel cover can be driven by the lifting driving mechanism to ascend so as to close the sampling barrel. Therefore, the water body sample can be prevented from being scattered in the process of recovering the sampling barrel after the water body sample is sampled.

The embodiment of the invention provides a mobile tower crane border crossing detection method and device. Tower crane design drawing data are imported into a virtual simulation engine, a three-dimensional model is constructed, and warning tape marks are set. A physical engine is creatively utilized to simulate tower crane moving tracks under different working conditions, and a border crossing behavior data set is generated based on intersection-to-union ratio calculation. A deep neural network structure is constructed, a trunk feature extraction module and a target detection module are included, and model parameters are optimized through a cross entropy loss function. According to the method, the limitation of traditional mechanical limiting and manual monitoring is broken through, real-time intelligent monitoring of the movable boundary of the tower crane is achieved, and reliable technical support is provided for safety management of a construction site.

Based upon the identification of a structural member, a projective path and final attachment location for the structural member is presented to the crane operator. Further, the dimensions of each structural member are determined and compared against a construction site database. Structural members not conforming to the dimensions listed in the construction site database are identified and the crane operator alerted.

An energy storage and delivery system includes an elevator operable to move blocks from a lower elevation to a higher elevation to store energy and from a higher elevation to a lower elevation to generate electricity. A winch assembly is movably coupled to a cable that is coupled to the elevator. The winch assembly has planetary gear assemblies, brakes that selectively engage at least a portion of the planetary gear assemblies, and a spool coupled to the cable. A drive shaft extends between a motor-generator and the winch assembly. A brake is operable so that the spool rotates to reel-in the cable to raise the elevator to move a block from a lower elevation to a higher elevation to store energy or so that the spool rotates to reel-out the cable to lower the elevator to move a block from a higher elevation to a lower elevation to generate electricity.

A semi-submersible crane vessel for use in assembling a wind turbine and for installation by means of a crane of the vessel of the assembled wind turbine on a foundation. At an assembly station, the hull of the vessel is provided with a mast-receiving well that is sunk into, or through, the hull, preferably a well that extends into, or through a support column of the hull, which well is configured to receive therein at least a portion of the mast of the wind turbine during an assembly step of the wind turbine. For example, the mast-receiving well has a depth of at least 15 meters, e.g. at least 30 meters, measured from the deck of the deckbox structure.

The invention provides an automatic management system for tower crane ground control, and relates to the technical field of tower crane ground control management. A dynamic multi-dimensional cost model is constructed by collecting spatial obstacle data, environmental risk indexes and time efficiency parameters, and an environmental protection reference value is generated and transmitted to a credit evaluation unit. The credit evaluation unit calculates an equipment health green credit score based on an environmental protection reference value and real-time operation data, and dynamically adjusts a green weighting factor of task allocation. And the task allocation unit constructs an economic decision matrix in combination with the cost parameter and the credit evaluation result, generates an optimal task allocation scheme through priority ranking, and triggers path optimization. And the task constraint unit optimizes the operation path and feeds back the energy recovery benefit to the cost model in real time. The visual interaction unit controls and manages in real time through a three-dimensional thermodynamic diagram and supports manual intervention. According to the system, resource optimization configuration and dynamic risk management and control of tower crane operation are achieved, and the construction efficiency and economical efficiency are improved.

The invention discloses a tower crane monitoring system in an intelligent construction site project, which comprises a multi-modal sensor module, a digital twin modeling module, a dynamic risk map generation module and a display terminal, and is characterized in that the multi-modal sensor module covers the whole domain of a tower crane and multi-dimensional data of real-time operation of the tower crane, so that the problem of data isolation of a traditional system is solved; a tower crane three-dimensional dynamic model is constructed based on real-time multi-dimensional data, stress distribution and motion trail of a physical entity are simulated, the position prediction precision of a lifting hook is improved, and a three-dimensional risk thermodynamic diagram is generated through a dynamic risk map generation module, so that a worker can more visually check the risk level of each part of the tower crane, intelligent early warning is realized, and the working efficiency is improved. And the fault occurrence probability is reduced.

The invention relates to the technical field of safety monitoring and early warning, and discloses a global safety monitoring and intelligent early warning system and method for construction site tower crane operation, and the method comprises the steps: deploying a multi-layer sensor network at a plurality of target parts of a construction site tower crane, and collecting the operation state data of the tower crane; carrying out extended Kalman filtering processing on the tower crane operation state data to obtain a tower crane sensor installation angle parameter and a non-integrity constraint lever arm parameter; performing global state estimation based on the tower crane sensor mounting angle parameter and the non-integrity constraint lever arm parameter to obtain a tower crane global state and external disturbance data; inputting the global state of the tower crane and the external disturbance data into a deep neural network, and performing safety boundary calculation to obtain a dynamic safety boundary model of the construction site tower crane; and performing risk measurement calculation based on the dynamic safety boundary model to obtain a safety risk grading early warning instruction, thereby improving the safety and collaboration of construction site tower crane operation.

A handling truck comprises a mast assembly, a base, a moving assembly, and a connecting member. The base is fixedly disposed at the bottom end of the mast assembly, and the base is provided with a socket portion. The moving assembly includes a leg assembly and a connecting portion, wherein one end of the connecting portion is connected to the leg assembly, and the other end of the connecting portion is configured for socket engagement with the socket portion. The moving assembly is configured to drive the mast assembly to move on a plane. The connecting member is configured to pass through the socket portion and the connecting portion to achieve a detachable connection between the moving assembly and the base. The present application provides a handling truck capable of reducing packaging costs and transportation costs.

The invention is broadly directed to a crane mounted device for monitoring a construction site, the device comprising a housing for containing monitoring equipment, the housing configured to be releasably secured via clamping means to a hoist of the crane above an object to be lifted, the housing locatable about the hoist to have line-of-sight along the hoist and to the object to be lifted wherein, in use, a weight of the housing is wholly supported by the hoist via the clamping means while the weight of the object is transferred via the hoist directly to the crane, such that the weight of the object bypasses the housing.

The invention provides a conveying platform for internal parts of a compact fusion reactor and a using method of the conveying platform, and belongs to the field of transportation of the internal parts of the fusion reactor. Vacuum outdoor transportation parts of the conveying platform comprise a supporting steel frame assembly, a transportation track assembly, a transportation trolley assembly and a mobile crane assembly, and the supporting steel frame assembly comprises a cage-shaped steel frame; one section of the transportation track assembly is straightly installed in the building channel, the other sections of the transportation track assembly are straightly located in the cage-shaped steel frame and extend to a window in the vacuum chamber, and the movable crane assembly and the transportation trolley are sequentially located on the transportation track assembly. The cable-stayed hanger rail component comprises cable-stayed rods, a bearing steel beam and an annular hanger rail, the cable-stayed rods are installed at the upper end of the regular polygon-shaped frame in an annular array mode, one end of each cable-stayed rod is connected with the upper window collar of the vacuum chamber, and the other end of each cable-stayed rod is connected with the bearing steel beam of the frame. According to the invention, after internal parts on the equatorial plane of the vacuum chamber are quickly conveyed, the internal parts can be conveyed through simple adjustment.

The invention relates to the technical field of automatic control, in particular to a crane load monitoring system and method for restraining swing, and aims to overcome the technical defects that according to an existing swing restraining scheme, control lag, effect attenuation and oscillation aggravation exist, and swing cannot be actively restrained from the root of movement of a crane. The system comprises a sensing module, a coupling model calculation module, a feedforward control module, a feedback correction module and an execution adaptation module. Wherein the coupling model calculation module is used for prospectively calculating a load swing trend based on crane motion parameters, and the feedforward control module is used for generating a compensation instruction in advance according to a predicted swing angle; and the feedback correction module performs closed-loop correction by using the actual swing angle. By the adoption of the technical scheme, efficient, active and whole-process suppression of crane load swing can be achieved, swing generation is weakened from the source, the operation efficiency is improved, and the operation threshold is lowered.

The present invention relates to the technical field of offshore engineering facilities, and in particular to an offshore wind power suction tube conductor frame installation method and device. Lifting points are respectively arranged at opposite ends of a lying conductor frame body. By controlling the lifting speed of each lifting point, the conductor frame body is flipped over to an upright state, thereby facilitating the installation of the suction tube body and the conductor frame body. After the installation, the two can be directly transported vertically, solving the major problems of traditional three-pile suction tube conductor frame construction process and equipment investment. The initial investment of the entire device is about 25 million, which is far lower than the initial investment of nearly 200 million of super-large gantry crane equipment; and there is no need to tension cable wind ropes, so the impact on the site is minimized; the foundation treatment is simple, the overall stability is good, and the economic benefit is high; the requirements of horizontal construction of the upper conductor frame and overall turning over, lifting and splicing are met, the horizontal construction of the upper conductor frame can be realized, the construction accuracy and construction efficiency are improved, and the risk of high-altitude operations is reduced.

The invention discloses crane end beam self-balancing type tower crane equipment which comprises a tower body, the upper end of the tower body is connected with a suspension arm and a balance arm, the lower end of the suspension arm is slidably connected with a crane carriage, the left end of the balance arm is slidably connected with a U-shaped extension frame, the extension frame is slidably connected with a square-shaped balance frame, and a plurality of balance blocks are placed on the balance frame. Two anti-falling assemblies which are symmetrical front and back are arranged on the inner side of the balance frame, a movable frame is arranged at the upper end of the balance frame in a sliding mode, a lifting balance assembly used for lifting a balance block is connected to the lower portion of the movable frame, two fixing assemblies used for fixing the balance block are arranged below the lifting balance assembly, and two speed reduction motors which are symmetrical front and back are fixed to the balance arm. Through the arrangement of the extension frame and the balance frame, the balance arm can be prolonged, the weight range of heavy objects hoisted by the device is increased, meanwhile, the extension frame and the balance frame are matched to stretch out and draw back, the balance arm is in the normal length, and use is convenient.

A mining narrow-gauge flat crane comprises a flat car frame and a lifting arm, the lifting arm is installed on the upper portion of the flat car frame, at least two sets of wheel pairs which are arranged in a front-back spaced mode are arranged at the bottom of the flat car frame, the wheel pairs are connected to a rail of a haulage roadway in a sliding mode, and telescopic supporting leg structures are arranged on the front side and the rear side of the flat car frame. The middle of the left side and the middle of the right side of the flat car frame are each provided with a propping column, the two propping columns are arranged in a bilateral symmetry mode, the flat car frame is further provided with a hydraulic pump station and a console, the underground power source provides power for a motor of the hydraulic pump station, and the hydraulic pump station provides hydraulic power for the lifting arm, the telescopic supporting leg structure and the propping columns. And the console controls the lifting arm, the telescopic supporting leg structure and the propping column to act respectively. The lifting device is flexible in lifting position, meets the requirement of lifting at various positions, has a car stabilizing function during lifting, is high in safety, and can greatly reduce the difficulty of manually loading and unloading materials and reduce the labor intensity of workers.

A remote operation terminal of a crane provided with a GNSS receiver for calculating the current position of the tip of a boom: acquires attitude information of the crane and the current position of the tip of the boom from a control device of the crane; generates a three-dimensional image of the crane at the current time and planimetric features on the basis of the information acquired from the control device and three-dimensional information acquired by a three-dimensional information acquisition unit; displays, on a display device, the generated three-dimensional image at the position of and in the direction of a viewpoint input to a viewpoint changing operation tool; and generates a control signal for the crane so that the tip of the boom of the three-dimensional image moves in a moving direction input to a suspended load moving operation tool in the three-dimensional image of the crane displayed on the display device.