963 results about "Tower crane" patented technology

The invention discloses an automatic hoisting and positioning system and method for prefabricated parts, and relates to the technical field of building construction. The system comprises a tower crane, a frequency conversion trolley, a three-axis pan-tilt stabilizer, a receiver positioning device and an infrared emitter which are coaxial, an intelligent terminal control system with a pre-stored BIM model, and an integrated inertial sensing unit and a dome camera monitoring system. The intelligent terminal generates target coordinates through the BIM positioning reference module, the real-time deviation calculation module quantifies three-dimensional positioning and axis perpendicularity deviation, and the compensation instruction generation module drives targeted adjustment; through combination of infrared dual-mode switching, frame line deviation correction and inertia swing dynamic suppression, precise positioning and obstacle avoidance cooperation is realized. According to the method, through the closed-loop process of benchmark setting, obstacle avoidance lifting, fine compensation and standard confirmation, it is guaranteed that the positioning deviation is not larger than 0.8 mm, the axis perpendicularity is not larger than 0.3 degree, and the inertia swing is not larger than 10 cm, the problems that traditional hoisting is poor in precision and large in inertia interference are solved, and the installation quality and the operation efficiency are improved.

The utility model provides an active dynamic balancing device based on a tower crane. The active dynamic balancing device comprises a tower body, a working arm and a balancing arm, wherein the working arm and the balancing arm are fixedly mounted on two sides of the top of the tower body respectively; a water storage tank and a balance water tank are fixedly mounted on the balance arm, and the bottom of the water storage tank is communicated with the balance water tank through a connecting pipeline; and a control valve group for controlling water distribution between the water storage tank and the balance water tank is arranged on the connecting pipeline. According to the utility model, the balance weight of the balance arm is designed into the capacity-adjustable water tank, the working moment is balanced by utilizing the moment generated by the dead weight of the water body, the volume of the balanced water body is adjusted in real time according to requirements, so that the moment is changed, and the quantity of the water body distributed in the water storage tank and the balanced water tank is adjusted in real time according to the working moment. And the balance moment is synchronously equal to the working moment in real time.

The invention relates to the technical field of wind power monitoring, and discloses a construction engineering tower crane wind power monitoring control method, which comprises the following steps: collecting wind power environment data around a tower crane structure through a multi-source sensor network, including wind speed, wind direction, wind pressure and tower crane boom vibration parameters, and generating a tower crane wind power original data set; performing wind load fusion evaluation processing based on the tower crane wind power original data set, calculating actual wind load distribution of each part of the tower crane by combining a tower crane structure model and a computational fluid dynamics principle, and generating tower crane wind load evaluation data; when wind power monitoring and controlling of the tower crane in constructional engineering are carried out, wind power environment data and structure response data around a tower crane structure are collected through a multi-source sensor network, a tower crane wind power original data set is generated, wind load fusion evaluation processing is carried out, and the wind load actually borne by the tower crane can be reflected; and meanwhile, the calculated tower crane wind load evaluation data and the tower crane safety threshold are compared and analyzed in real time, and a reliable basis is provided for control decision.

The invention provides a natural language interaction AI agent system for an intelligent tower crane and a method thereof. Wherein the agent system comprises a natural language understanding module, a task planning module, a tool scheduling engine, a large language model interface, a data adaptation layer, a result generation module and a learning optimization module; the proxy method comprises the following steps: S1, natural language input processing; s2, intention understanding and task planning; s3, data acquisition and preprocessing; s4, intelligent analysis and reasoning; s5, verifying and optimizing a result; s6, generating a natural language answer; and S7, feedback learning and optimization are carried out. According to the method, natural language interaction between the user and the intelligent tower crane system is achieved by constructing a special AI agent architecture, the large language model is automatically called to intelligently analyze the running state of the tower crane, and analysis results and decision suggestions which are easy to understand are provided for the user.

The utility model provides a lifting device for a tower crane. The lifting device comprises a mounting seat, a bracket, a hanging bracket and a steel wire rope, the mounting seat is fixed to the top of a cabin, the support is mounted on the mounting seat, and the hanging bracket is arranged at the top of the support and provided with the hoisting pulley block. A lifting pulley block is arranged at the rear end of the on-tower crane, and when the on-tower crane is vertically arranged, the lifting pulley block and the hoisting pulley block are oppositely arranged; the hoisting pulley block comprises at least one hoisting pulley which is coaxially arranged, and the lifting pulley block comprises at least one lifting pulley which is coaxially arranged; a guide pulley block is arranged on a suspension arm of the on-tower crane; when the on-tower crane is lifted, one end of the steel wire rope is fixed on the on-tower crane or the hanging bracket, and the other end of the steel wire rope penetrates through the lifting pulley block, the hoisting pulley block and the guide pulley block and then is connected to a power unit arranged below the fan tower; the power unit tightens the steel wire rope to lift the on-tower crane.

The utility model discloses a tower crane radio environment monitoring device which comprises a shell installed at the position consistent with the height of a tower crane communication antenna, and a multi-frequency-band signal receiving module, an active frequency spectrum scanning module, a signal filtering processing module and a data aggregation and output module which are arranged in the shell. The multi-frequency-band signal receiving module is used for receiving radio signals of a plurality of preset frequency bands used for normal communication of the tower crane; the active frequency spectrum scanning module is isolated from the multi-band signal receiving module in a physical structure and is used for actively scanning a radio frequency spectrum in a tower crane operation area; the signal filtering processing module is in signal connection with the multi-band signal receiving module and the active spectrum scanning module; the data aggregation and output module is in signal connection with the signal filtering processing module, and the communication interface is in signal connection with the data aggregation and output module. The radio environment monitoring device can sense the radio environment experienced by the tower crane communication antenna in the actual operation process in real time.

The invention discloses a BIM (Building Information Modeling)-based steel structure hoisting path optimization method and optimization system. The method comprises the following steps: S100, constructing a three-dimensional construction scene model comprising a steel structure component, a tower crane and a civil engineering structure by utilizing BIM software; and S200, carrying out hoisting path simulation based on the tower crane operation parameters and the component hoisting sequence, and observing a motion track and a spatial relationship. According to the method, hoisting path simulation and component stacking position optimization are carried out through the BIM technology, a reasonable hoisting path and a component stacking scheme are planned in advance, on-site secondary reshipment is reduced, construction delay caused by unreasonable paths or disordered component stacking is avoided, the steel structure hoisting construction efficiency is remarkably improved, and the construction cost is reduced. Through the collision detection algorithm, the collision risk between the steel structural member and obstacles such as a tower crane and a civil engineering structure can be found in time in the simulation process before construction, avoidance is carried out by adjusting the hoisting path, the collision accident rate in actual construction is effectively reduced, and the construction safety is improved.

The utility model provides an active dynamic balance tower crane which comprises a tower body, a working arm and a balance arm, wherein the working arm and the balance arm are respectively arranged on two sides of the tower body; wherein a hoisting / walking trolley is arranged on the working arm, and a dynamic counterweight mechanism is arranged on the balance arm. Compared with a traditional static counterweight mode, the active dynamic balance tower crane has the advantages that the dynamic counterweight mechanism can avoid bending deformation of the tower body caused by unbalanced torque of the working arm and the balance arm in a non-working state; in the working state, the front-back shaking amplitude of the tower crane can be reduced, the safety performance of the tower crane is improved, the working environment of a tower crane driver is improved, and the fear of the driver is reduced. In addition, compared with a balancing weight in passive arc motion, the mechanism can actively adjust the balance moment to be equal to the working moment in real time according to the change of the working moment on the working arm, and as the working moment is actively balanced, the overturning moment to a foundation is minimum, the safety performance of the tower crane is improved, and the accident occurrence probability is reduced.

The invention discloses a rapid sensing and positioning method and device in a building scene, and relates to the technical field of cooperative sensing and positioning of tower cranes and ground robots. Through lightweight semantic segmentation and point cloud clustering, a semantic fusion coefficient is calculated in combination with illumination information, the semantic fusion coefficient is compared with a scene fusion credibility threshold, and qualified target instances are screened; acquiring a target motion track based on cross-frame tracking, calculating a track consistency coefficient by combining displacement difference and track smoothness, and comparing the track consistency coefficient with a track consistency threshold to judge track stability; further extracting a three-dimensional center coordinate of the target point cloud cluster, counting continuous frame results, calculating a positioning confidence coefficient, comparing the positioning confidence coefficient with a positioning confidence threshold, and marking the target as a high confidence level, a medium confidence level and a low confidence level; and finally, triggering a corresponding robot to execute a strategy according to the target confidence level, and realizing rapid and reliable building scene sensing and positioning.

The present invention relates to methods for pre-diagnosis and online detection of a brake of a conveying device, comprising a method for pre-diagnosis of a brake during a non-working period of a conveying device and a method for online detection of a brake during a working period of a conveying device. According to the present invention, by means of detecting a braking torque of a brake used on an elevator, an escalator, or a cage tower crane before being put into use and during use, faulty conditions of a brake used on a conveying device can be promptly detected, so as to effectively prevent motor brake drag during operation due to an insufficient braking torque of the brake of the conveying device, or due to the brake not being actuated or not being fully actuated. Moreover, a warning prompt can be promptly issued to a brake having a potential risk of failure, so as to effectively prevent a faulty brake during operation, and facilitate targeted maintenance and repair by maintenance personnel, thus eliminating potential safety risks in the brake and preventing the occurrence of a significant safety incident during subsequent operations.

The invention discloses a tower crane bolt axial force intelligent ultrasonic detection method and system based on multi-modal data fusion. Firstly, a multi-stage influence factor system is constructed based on a fuzzy hierarchical comprehensive evaluation theory, and a high-risk region identification model is established; and calculating a regional risk value based on the model, and determining a monitoring point distribution scheme. A heterogeneous network composed of a fiber grating strain sensor and an ultrasonic sensor is arranged in a selected area, and strain and ultrasonic data are synchronously collected. And inputting the multi-modal data into a deep belief network for feature fusion, and realizing health state dynamic evaluation through a fuzzy recognition model. And based on an evaluation result, performing fatigue life prediction by adopting an improved rain flow counting method and an accumulative damage theory. And finally, data fusion display and intelligent early warning are realized through the remote monitoring platform. According to the invention, full-chain intelligent health management from risk identification, real-time monitoring to life prediction is realized.

The invention discloses an unmanned tower crane dynamic simulation method and system based on a virtual simulation technology, and relates to the technical field of intelligent construction. Comprising the following steps: constructing an unmanned tower crane BIM model and collecting point cloud data, and establishing a simulation model based on the unmanned tower crane BIM model and the point cloud data; developing a customized physical engine based on the simulation model, and constructing a multi-body dynamic model; constructing a three-dimensional wind field model, adjusting parameters, performing climate coupling simulation with the multi-body dynamic model, and obtaining structure response data under different wind fields; constructing an unmanned tower crane path planning model, and generating and executing an unmanned tower crane motion path in combination with the wind field parameters and the structure response data; running state data are obtained and visualized, and multi-dimensional risk monitoring is carried out on the path execution process according to the running state data. According to the method, the problems of scene distortion, rough simulation and risk missed judgment in the existing unmanned tower crane virtual rehearsal are solved, and the authenticity and effectiveness of the virtual rehearsal are improved.

The invention relates to the technical field of safety monitoring of tower cranes, in particular to a tower crane jacking safety state online evaluation system based on edge calculation. Comprising a terminal sensing layer, an edge computing layer and a cloud platform layer, and the terminal sensing layer comprises a plurality of sensors arranged at key parts of a tower crane and is used for collecting physical parameters in the jacking process; the edge computing layer is connected with the terminal sensing layer through industrial embedded equipment and is used for carrying out local real-time processing and safety state evaluation on sensor data; and the cloud platform layer is used for receiving the data uploaded by the edge computing layer and carrying out historical data storage, trend prediction and remote monitoring. The tower crane jacking safety state evaluation system provided by the invention can realize local real-time processing and low-delay response and has high reliability.

The invention discloses a bearing and lifting integrated tower crane stock device and a top section adding tower crane. The bearing and lifting integrated tower crane sleeve frame device comprises a square-frame-shaped upper sleeve frame, a square-frame-shaped lower sleeve frame and a telescopic assembly, the upper sleeve frame is arranged above the lower sleeve frame, vertically-through tower section channels are formed in the upper sleeve frame and the lower sleeve frame, a bearing support is arranged at the upper end of the upper sleeve frame, the upper sleeve frame and the lower sleeve frame are connected through the telescopic assembly, and the telescopic assembly is arranged on the lower sleeve frame. The upper sleeve frame and the lower sleeve frame are each provided with a hanging claw assembly used for being matched with a clamping groove in the outer vertical face of a tower section in a hanging mode, and the upper sleeve frame and / or the lower sleeve frame are / is provided with a rapid locking assembly used for being locked with the tower section. According to the bearing and lifting integrated tower crane sleeve frame device, by arranging the hanging claw assembly, the hanging claw assembly and the outer vertical face of the tower section can form good hanging fit through gravity, meanwhile, the sleeve frame and the tower section are locked through the locking assembly, the stability of the sleeve frame can be further improved, and the safety of a tower crane is improved.

The invention discloses a tower crane group collaborative operation decision-making method, which realizes tower crane and environment omnibearing perception by deploying a plurality of sensors such as a radar, a camera and an inertial measurement unit, and performs state estimation, conflict trend prediction and risk assessment by using Kalman filtering, space-time grid modeling and a deep learning model. And adaptively adjusting the grid resolution and the conflict avoidance strategy according to the grid resolution and the conflict avoidance strategy. A distributed negotiation mechanism and dynamic task priority reordering are put forward, global optimization of path adjustment and task scheduling among multiple tower cranes is achieved, real-time strategy landing is achieved through man-machine interaction and automatic control, and the method has the high-precision and high-efficiency conflict prediction and quick response capacity and is suitable for large-scale popularization and application. And the safety, the scheduling intelligence and the robustness of the dense operation area are improved.

The invention relates to the technical field of equipment performance detection, in particular to a construction equipment performance intelligent detection method based on an AI algorithm. The method comprises the following steps: acquiring operation data of each monitoring point of the tower crane, further respectively acquiring characteristics of each monitoring point in a time period, and forming a sample by the characteristics of each monitoring point in the time period; forming a sample set of a first node of an isolated tree of the isolated forest by a preset number of samples containing the samples at the current moment; obtaining the sparse degree and the unstable degree of one feature of one sample; obtaining the abnormal distinguishing degree of one feature, further obtaining the segmentation possibility of one feature of each sample, then segmenting the sample set to obtain two sub-sample sets, and so on, segmenting the sub-sample sets until the depth of the isolated tree reaches a preset depth; and obtaining the abnormal degree of the structural fatigue at the current moment according to each constructed isolated tree. The performance of the tower crane can be effectively monitored.

The application discloses a digital twin pre-rehearsal method and system for tower crane collision risk, and relates to the technical field of collision risk analysis. Firstly, a unified time tag snapshot is generated by using cloud edge double clocks and weight synchronization. Secondly, the snapshot is cached according to the survival degree and the invalid frame is resampled. Thirdly, the time synchronization deviation and the spatial position deviation are fused into a synchronous reliable coefficient through fuzzy reasoning. Then, the reliable coefficient is used to drive the physical scheduling model to predict the trajectory, generate the safety envelope, monitor the difference and adaptively shrink, adjust the multi-tower operation window by combining the time slot insertion algorithm, and finally, the fixed-length data packet and the hash chain are used to prevent tampering and archive key quantities, and the sliding forgetting model and reinforcement learning are used to update the sampling step length, trade-off weight and envelope flexibility online. The method realizes second-level prediction, instant scheduling and self-evolution, and can reduce the multi-tower collision risk of high-rise buildings and take into account the construction efficiency.

The invention discloses a real-time early warning method for obstacles in a hoisting path of a tower crane, which comprises the following steps: cooperatively deploying a multi-modal sensor, and deploying a laser radar and other sensors at key parts of the tower crane to obtain multivariate data; intelligent obstacle sensing: using a deep learning algorithm to identify obstacles and fusing data to eliminate detection blind areas; dynamic path planning: generating an initial path by using a target-oriented random tree algorithm, introducing a dynamic obstacle avoidance mechanism to adjust nodes in real time, and optimizing the path in combination with deep reinforcement learning; the grading early warning mechanism is used for outputting a multi-mode early warning signal according to the obstacle condition and adaptively adjusting the alarm intensity; carrying out multi-source data fusion optimization, and generating a high-confidence perception result by adopting Kalman filtering and an evidence theory; and the algorithm self-optimization module is used for training a path strategy by using a deep Q network and dynamically adjusting. According to the method, the obstacle recognition accuracy and real-time performance are improved, the collision risk is reduced, and the hoisting operation safety and efficiency are improved.

The invention discloses an active dynamic balance control method and system for a tower crane, and the method comprises the steps: monitoring the vertical state of a tower body or the horizontal state of a working arm in real time, and obtaining an actual posture value; comparing the actual attitude value with a preset standard attitude value, and judging attitude deviation and direction; according to the deviation direction, a balance weight executing mechanism on the balance arm side is directly driven to act so as to change the balance torque, and the specific value of the needed torque is not calculated in advance in the adjusting process; and real-time monitoring is continuously carried out while adjustment is carried out until the attitude deviation is eliminated, and closed-loop control with the vertical tower body as a direct control target is formed. Through attitude feedback closed-loop control, any unbalance disturbance including inertia force can be sensed in real time and directly corrected, the tower body alternating bending moment is fundamentally eliminated, the foundation of tower body shaking is eradicated, the service life of a tower crane is remarkably prolonged, and meanwhile the structure of a control system is simplified.

The invention provides an external assembly type tower crane anti-climbing device, and belongs to the technical field of tower crane anti-climbing. Comprising a plurality of frames, a plurality of mounting plates are fixed to the side faces of the frames, the adjacent frames are perpendicularly arranged, the mounting plates between the adjacent frames are vertically aligned, and the vertically aligned mounting plates are fixedly connected through screws. By arranging the frame, the panel and the round rollers, when the tower body has a certain height and an entrance for entering a control room is located on the side face of the tower body, the fence composed of the frame and the panel is fixed to the periphery of the tower body, and when a person wants to climb the tower body, due to the fact that the surface of the panel is smooth and the feet of the person have no acting points, the person cannot climb the tower body, and the safety of the person is improved. When a person binds a hook on a rope and hangs the rope on the tower body, the person wants to climb the tower body with the help of the rope at the moment, and when the feet step on the panel, the round roller rotates, so that the feet of the person have no leveraging point, the person is further prevented from climbing the tower body, and safety protection for the person is achieved.

The utility model relates to the technical field of tower cranes, and discloses a telescopic external hanging beam of an internal climbing type tower crane, which comprises a crane standard knot and a connecting frame fixedly arranged at the outer edge of the crane standard knot, and one end of the connecting frame far away from the crane standard knot is movably connected with a telescopic rod. A main connecting piece is fixedly mounted at the end, away from the connecting frame, of the telescopic rod, a first mounting piece is movably connected to the end, away from the telescopic rod, of the main connecting piece, and a side connecting piece is fixedly mounted on the side, away from the telescopic rod, of the connecting frame. According to the telescopic external hanging beam of the internal climbing type tower crane, in the construction process, according to the actual operation requirement, the telescopic length of the side telescopic column is adjusted, then the side telescopic column and the side telescopic column are welded or limited through other fixing pieces, and the lateral supporting range of the external hanging beam can be changed; and the included angle between the side telescopic column and the connecting frame can be reduced, so that multidirectional fixation can be provided, and the deformation resistance of the side telescopic column can be improved.

According to the concrete prefabricated part laying equipment and method, the problems that an existing laying method is long in tower crane occupation time, high in safety risk, low in working efficiency and low in hoisting equipment adaptability are solved. The laying equipment comprises a universal bearing base, a walking hoisting device and a control unit, the top of each connecting plate of a mounting platform of the universal bearing base is connected with a ball assembly, the bottom of each connecting plate is connected with a pushing mechanism, a plurality of steel balls are evenly distributed in a semi-spherical inner groove of a bearing piece, and universal balls are arranged in the inner groove and make contact with the steel balls; a pushing rod of the pushing mechanism penetrates through the connecting plate and abuts against the bearing piece. The method comprises the steps that the universal bearing base is placed on a temporary shelving platform which is laid in advance, the prestressed concrete laminated slab is hoisted and placed above the universal bearing base, a winch of the walking hoisting equipment hoists the prestressed concrete laminated slab and accurately clamps the prestressed concrete laminated slab into a preset position, and the steps are repeated; and sequentially laying the prestressed concrete laminated slabs outside the temporary shelving platform area.

The present application relates to tower crane anti-swing motion control technical field, especially a kind of six-degree-of-freedom tower crane anti-swing control method and system based on sliding mode control.The dynamic model of tower crane is constructed based on Lagrange method;The dynamic model of tower crane is linearized in equilibrium position using the constructed tower crane;According to the state information of tower crane, the error signal is selected to design the sub-sliding surface, and the initial control law is designed using the principle of negative rate of Lyapunov function change;Unknown disturbance and model uncertainty are estimated using adaptive algorithm to obtain updated control law;Design total sliding surface and introduce auxiliary function to select appropriate approach law to obtain auxiliary control law;The final control law is obtained by combining the updated control law with the auxiliary control law.The problem that tower crane is easily disturbed in complex environment is effectively solved by constructing hierarchical sliding surface and introducing adaptive algorithm, and the working efficiency and performance of tower crane are significantly improved.

The utility model provides an angle detection limiting device and a movable arm type tower crane. The angle detection limiting device is applied to the movable arm type tower crane and comprises a detection collision block arranged between a buffer connecting rod and a buffer fixing block, the detection collision block is provided with a first end and a second end, and the first end of the detection collision block is rotationally connected with a buffer of the movable arm type tower crane; the limiting switch is fixed to the buffer fixing block and arranged on the moving path of the detection collision block, so that when the distance between the buffer connecting rod and the buffer fixing block is smaller than a preset distance threshold value, the detection collision block makes contact with the limiting switch and triggers the limiting switch, and the limiting switch is used for controlling a luffing mechanism of the movable arm type tower crane to work. According to the scheme, the structure is simple, installation and manufacturing are convenient, and the reliability of the limiting device can be guaranteed.

The utility model relates to a tower crane holding tile connecting structure, and belongs to the technical field of tower cranes. Comprising a standard knot lower joint, a standard knot upper joint, a holding tile I and a holding tile II, a hinge I is arranged on the standard knot lower joint, a hinge II is arranged on the holding tile I, a hinge III is arranged on the holding tile II, and the hinge II and the hinge III are connected with the hinge I through connecting rods. The holding tile I and the holding tile II are fixedly connected with the standard knot lower connector and the standard knot upper connector through bolts. The standard knot lower joint and the standard knot upper joint are provided with grooves matched with the holding tile I and the holding tile II, and the holding tile I and the holding tile II can be clamped into the standard knot lower joint and the standard knot upper joint through the grooves. The utility model has the beneficial effects that the traditional tower body standard knot mounting method is eliminated, the holding tile is initially mounted to the outer side of the lower joint, frequent mounting and dismounting are not needed, and the mounting efficiency is improved. And the hinge design is adopted, so that the holding tiles can be rotationally opened and closed, the flexibility is higher, and the application range is wider.

A tower crane for performing a lifting a load includes an extendable tower assembly having a central axis and including a plurality of separate tower sections, a climbing assembly including a climbing frame positioned on the tower assembly and a latching assembly to transport the climbing assembly vertically along the tower assembly, and a boom assembly atop the tower assembly and including a crane floor, a boom supported on the crane floor, a lifting member coupled to the boom, and a slew bearing coupled to the crane floor and configured to permit the crane floor to rotate about a rotational axis, wherein the slew bearing includes a first bearing position and a second bearing position spaced from the first bearing position relative to the central axis of the tower assembly.

This utility model relates to a sliding frame device for assembling a large-span steel arched roof structure. It includes a frame sliding track assembly, a frame sliding support assembly, a main frame assembly composed of multiple tower crane standard sections, an adjustable top component, a traction mechanism, and a fixing mechanism. The frame sliding support assembly is installed on the frame sliding track assembly and can slide on it. The main frame assembly is mounted on the frame sliding support assembly. The adjustable top component is installed above the main frame assembly. The traction mechanism is installed at the end of the frame sliding track assembly to connect to the main frame assembly and adjust and fix its position. This sliding frame device has an ingenious structure, is easy to operate, and has a high degree of automation. It effectively reduces the workload of working at heights, improves installation efficiency, reduces labor costs, significantly lowers the risks of working at heights, and enhances the user experience for construction workers.

The utility model discloses a tower crane winch steel wire rope lubricating mechanism mainly relates to tower crane winch steel wire rope lubricating technical field. The surface of winch body is installed with the roller bracket, and the inner wall arc surface of roller bracket is provided with the steel wire rope body, and one end of steel wire rope body is provided with the lifting hook, and the surface one side of winch body is installed with the electric control cabinet, and the position of both sides surface of roller bracket corresponds the steel wire rope body and is provided with the adjusting device, and the adjusting device includes the adjusting frame, the bearing frame, and both ends of adjusting frame are all with both sides surface fixed connection of roller bracket. The utility model has the beneficial effect that: in the process of operating and using tower crane equipment, because the steel wire rope of tower crane winch bears the great tension and friction, the friction between steel wire rope and tower crane pulley will increase at this moment, and the surface wear of steel wire rope is easy to cause, thereby reducing the service life of steel wire rope and causing the problem of the fracture of steel wire rope.

The invention discloses a real-time three-dimensional modeling and hanging object size identification method and system applied to a tower crane, and belongs to the technical field of image processing, and the method comprises the following steps: obtaining a corrected real-time three-dimensional model, thereby obtaining a hanging object simulation dynamic swing amplitude; the movement envelope volume of the hanging object is obtained; whether static obstacle interference exists or not is judged, if yes, early warning is carried out, and if not, hoisting task construction is carried out; when hoisting task construction is carried out, whether dynamic obstacle interference exists or not is predicted in real time, if yes, corresponding speed adjustment is carried out, the obstacle avoidance speed is obtained for initial configuration, and if not, speed adjustment is not executed; according to the method, the mechanical performance influence parameters of the tower crane are obtained, the mechanical performance influence value is obtained through analysis, the obstacle avoidance speed is corrected, the correction execution obstacle avoidance speed is obtained, and actual configuration is carried out, so that the problem of inaccurate obstacle avoidance speed adjustment caused by inaccurate suspended object size analysis in the prior art is solved; the method is suitable for a tower crane construction scene and a port container lifting remote control scene.

The utility model relates to tower crane technical field, especially safety protection type tower crane, including main body stand, be equipped with a plurality of support frame and with the installation block that is connected to it on main body stand, a plurality of protective net, protective net is connected with the installation block through second mounting bolt, a plurality of telescopic subassembly, telescopic subassembly both ends are connected with the installation block and support plate respectively through connecting component, and support plate bottom end is connected with fixed cone, a plurality of building link frame, and building link frame includes spiral groove disc and cross -bracing pull frame, spiral groove disc is connected support frame through carousel, and cross -bracing pull frame is connected spiral groove disc through plug connector, the utility model discloses through the setting of telescopic subassembly and installation block, can four -sided support to tower crane body, and the ability of anti -tilting is strengthened, through the setting of protective net, can undertake the component such as falling, effectively reduce the risk of high -altitude falling object to hurt the equipment and the personnel below, utilize the overall structure of building to share horizontal load, and the stability is strengthened.