161 results about "Crane Equipment" patented technology

The invention discloses a new energy access lower harbor area transformer insulation performance and service life evaluation method, which comprises the following steps: firstly, establishing a wind and light storage AC / DC hybrid micro-grid equivalent simulation model, and quantifying a composite action mechanism of new energy fluctuation and harmonic characteristics on dynamic loss and hot-spot temperature rise of a transformer; analyzing a harmonic loss mechanism of the transformer in different operation modes; secondly, constructing a quay crane and field crane operation simulation model, and analyzing the harmonic characteristics of bridge crane equipment and the influence of the harmonic characteristics on the harmonic distortion rate of the power distribution network; then, on the basis of the data, a transformer hot-spot temperature dynamic calculation model is established in combination with bidirectional power flow characteristics; and finally, calculating transient temperature distribution of the transformer through a flow field-temperature field coupling method, and constructing a multi-physical field coupled insulation aging rate model to realize evaluation of the residual life of the transformer. The method solves the problem that the traditional method cannot quantify the bidirectional power flow and harmonic wave composite aging effect.

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

The invention discloses an intelligent and safe hoisting monitoring method for a large-tonnage I-beam, relates to the field of construction safety, is based on a monitoring system consisting of a sensing layer, a transmission layer, a data layer, a decision layer and an execution layer, and comprises the following steps: deploying the sensing layer, constructing the transmission layer, configuring the data layer, constructing the decision layer and responding to the execution layer. Structural stress is monitored through a high-precision strain gauge and a distributed optical fiber sensor, the posture is monitored through an MEMS tilt angle sensor and a six-axis gyroscope, the state of the lifting appliance is monitored through a tension sensor and a visual recognition sensor, the environment is monitored through an ultrasonic anemograph and a laser radar, and multi-dimensional data collection is conducted through a displacement sensor monitoring device. Full-scene monitoring of the state of the I-shaped beam, the performance of a lifting appliance, the working environment and crane equipment is achieved, potential risks are captured without dead corners, the accuracy and reliability of data under complex working conditions are ensured, the problems that traditional monitoring data are prone to being interfered by the environment and insufficient in precision are solved, and the safety coefficient is increased.

The invention relates to the technical field of line crane warning, in particular to an overhead line trend intelligent crane sentry warning method and system based on Beidou positioning. The method comprises the steps that base station data information including power transmission tower pole and line trend data is acquired based on Beidou positioning, and construction crane position information is monitored in real time; respectively constructing a power transmission line corridor model and a warning tape model based on the acquired data; carrying out model integration and optimization on the constructed power transmission line corridor model and the warning tape model; generating early warning information based on the integrated and optimized model; and carrying out sentry alarm on the construction crane based on the generated early warning information. Real-time monitoring of numerous power transmission tower and power transmission line corridor areas, including power grid power transmission line channel display, crane equipment map point location display, crane early warning track display and the like, can be realized.

The application discloses a kind of unmanned vehicle accurate parking methods of port crane scene, through the setting of desired accurate parking position, adjust the distance and direction of vehicle, guide vehicle accurate parking, through the position that template map has saved desired accurate parking, and the plane parameter of crane, improve the accuracy of vehicle stop, can improve the efficiency of loading and unloading box operation, increase the economic benefit of single vehicle unit time, simultaneously, through laser radar, the point cloud data of crane can be directly scanned and obtained, realize the accurate parking of port crane scene, do not need to make any modification to crane equipment and install any equipment, there is no special requirement to crane structure, size etc., with good universality, the characteristics such as low introduction cost.

The utility model discloses a crane equipment near-electricity alarm based on field intensity detection in the technical field of near-electricity alarms, which comprises a crane, a signal receiving component is mounted at one end of a crane body of the crane, an induction transmitting module is arranged at one end of a suspension arm of the crane, and the signal receiving component comprises a signal receiving module. The signal receiving module is in electric signal connection with the induction transmitting module, a supporting base is installed at the bottom of the signal receiving module, the safety protection design in the signal receiving module effectively reduces pollution and damage of the external environment to key parts of the equipment, long-term stable operation of the equipment is guaranteed, and the dust removing piece arranged in the protection part can effectively remove dust in the equipment. According to the near-electricity alarm designed in the scheme, impurities accumulated on the explosion-proof glass can be regularly cleaned through cooperation with the guide sliding groove, the clear display effect is ensured, sight blocking caused by dust accumulation is reduced, the safety and reliability in the operation process are improved, and potential safety hazards can be effectively reduced in an electric power construction site.

The invention provides an electronic fence safety protection early warning system and method based on crane operation, and relates to the technical field of safety protection early warning. The early warning system comprises a dynamic fence generation module which is used for generating an electronic fence area according to working range parameters of crane equipment, dynamically adjusting an electronic fence boundary and generating dynamic fence data; the multi-source data fusion analysis module is used for identifying and calculating the operation risk factors according to the multi-source data and generating real-time operation risk state information; the environment self-adaptive adjustment module is used for dynamically adjusting the early warning parameters according to the external environment data and generating adjusted early warning parameters; and the comprehensive early warning output module is used for evaluating the overall risk of the crane operation according to the dynamic fence data, the real-time operation risk state information and the adjusted early warning parameters, and generating a corresponding early warning instruction according to an evaluation result. The method can comprehensively guarantee the safety of crane operation.

The invention relates to the technical field of operation control of hoisting equipment, and provides a ship loading-truck loading integrated operation method and system for mast hoisting equipment. The method comprises the following steps: adjusting an anchor cable of the mast crane to enable the mast crane to be in an initial operation state; a main arm variable-amplitude combined lifting system is started, and the mast crane is controlled to lift the heavy equipment from the cabin at the intelligently optimized lifting angle until the heavy equipment is completely separated from the cabin; the heavy equipment is controlled to hover to a shoreside transition area along with the amplitude variation action of the main arm; in the reverse amplitude variation process or after the reverse amplitude variation process is completed, according to the real-time position of the transport vehicle and the posture of the equipment, dynamic fine adjustment is conducted on the operation path, and the dynamic fine adjustment comprises adjustment of the amplitude variation angle of a main arm, the lifting height and the horizontal movement track of the equipment; and the equipment is controlled to fall to a transport vehicle plate, and the postures of the lifting points and the alignment deviation of the equipment and the vehicle plate are continuously monitored in the vehicle falling process till the equipment accurately falls in place, and vehicle loading is completed.

The invention relates to the technical field of mast crane equipment control, and provides a precise amplitude variation control method and system for a main arm of a mast crane. The method comprises the steps of obtaining structural parameters, and calibrating an arm angle sensor and a steel wire rope tension sensor; sensor data of an arm angle sensor and a steel wire rope tension sensor are collected and preprocessed in real time, and angle and tension feedback signals are generated; judging an adjustment strategy corresponding to the current working condition according to the angle and tension feedback signal, and generating a winch traction rate parameter corresponding to the adjustment strategy; a synchronous control instruction is sent to the two sets of variable frequency winches, the rotating angle and the hoisting state are adjusted, corresponding feedback data are obtained, closed-loop correction is conducted based on the feedback data, and control parameters are dynamically adjusted; wherein in the micro-amplitude adjustment stage, a segmented low-speed control and tension balance strategy is adopted, and high-precision positioning is ensured; and after the conditions of angle stability and stress balance are met, adjustment is ended. The method realizes control of high-precision adjustment of the angle of the main arm.

The utility model relates to a multifunctional intelligent portal crane, relates to crane equipment technical field, including support subassembly, slide mechanism, hoisting mechanism and multistage telescopic link, support subassembly includes support and crossbeam, support is provided the both ends of crossbeam; the sliding mechanism comprises a hoisting frame and a driving wheel, the driving wheel is rotationally arranged on the hoisting frame, the driving wheel is connected to the cross beam in a sliding mode, and the hoisting frame is connected with a lifting hook through a hoisting mechanism; one end of the multi-stage telescopic rod is arranged on the hoisting frame, and the other end of the multi-stage telescopic rod is connected with the lifting hook. According to the utility model, through the multi-stage telescopic rod, the technical problem that a certain potential safety hazard exists as the hanging bracket is easy to rotate and shake due to inertia in the process of hoisting articles by the crane is solved.

The utility model relates to the technical field of constructional engineering, in particular to an anti-skid device for a movable formwork, which comprises a main beam, a front support leg, a rear support leg, a rear longitudinal moving auxiliary support leg, an outrigger suspension arm, a track, a rear suspension, an outer formwork, a bottom formwork, a suspension rod, a side formwork, an inner formwork, a reinforcement cage lifting appliance, a reinforcement cage tire car, a hydraulic and electric appliance, a halfpace and a handrail. According to the utility model, the upward moving beam yard is adopted to automatically finish the hole passing displacement of the supporting legs without other auxiliary crane equipment on the ground, the mechanical degree is high, the operation is simple, the safety and reliability are realized, and the rain-proof and sun-proof ceilings are arranged at the tops of the outriggers on the two sides of the main beam, so that all-day work of the moving beam yard can be ensured; when a concrete box girder is poured, steel bars of a next hole of box girder can be bound at the tail of the concrete box girder, the construction efficiency is greatly improved, the construction period is shortened, when a continuous beam or a continuous steel structure and other inter-bridge transition are carried out, only the side formwork and the bottom formwork need to be unfolded, passing can be conveniently carried out, the whole machine dismantling workload is reduced, and the transition operation efficiency is improved.

The invention belongs to the technical field of crane equipment, and particularly relates to a low-temperature-resistant crane suitable for high altitude, which comprises an elevated frame, a bridge frame is slidably connected to the elevated frame, and a crane carriage is arranged on the bridge frame; the crane carriage comprises a rack, a hoisting mechanism is arranged on the rack, and a lubricating mechanism for lubricating a steel wire rope of the hoisting mechanism is arranged on the rack; the lubricating mechanism comprises a supporting cavity detachably connected with the rack, a plurality of penetrating holes corresponding to steel wire ropes of the hoisting mechanism are formed in the supporting cavity, and a plurality of sets of conical lubricating cavities corresponding to the penetrating holes respectively are formed in the supporting cavity. The multiple sets of lubricating cavities comprise a plurality of fan-shaped lubricating cones synchronously sliding in the radial direction of the penetrating hole, and an oil way structure for providing lubricating oil for the lubricating cavities is arranged on the rack. According to the high-altitude low-temperature-resistant crane capable of conveniently lubricating the steel wire rope, the steel wire rope of the crane carriage can be conveniently lubricated.

This invention discloses an automated container yard and automated container terminal, allowing both automated horizontal transport equipment within the port and manual horizontal transport equipment outside the port to operate in the yard. The automated horizontal transport equipment within the port can operate with two containers at a time, while the manual horizontal transport equipment outside the port can travel in one direction. Through an underground structure, the automated horizontal transport equipment within the port is physically separated from the manual horizontal transport equipment within the port and can return to the landside without turning around. The two do not affect each other's operations, solving the technical problems of long travel distances and high energy consumption of yard cranes in vertical layouts. Moreover, the automated horizontal transport equipment within the port and the manual horizontal transport equipment outside the port will not cause congestion. Regardless of whether the yard structure is vertical or horizontal, it can improve the operational efficiency for handling large-volume operations.

The utility model provides double-crane hoisting equipment, and relates to the technical field of glass hoisting. The double-crane hoisting equipment comprises two moving cranes, a balance bar, a connecting frame, a suction cup frame and two lead screw assemblies which are installed on a workshop track beam, first connecting rings are fixedly connected to the two ends of the top of the balance bar, and lifting hooks of the two moving cranes are arranged in the two first connecting rings correspondingly; the bottom of the balance bar is fixedly connected with a connecting plate, and the connecting plate and the connecting frame are connected through a connecting assembly. According to the device, the connecting frame is made to be horizontal through the arranged lead screw assembly, so that the ultra-large plate glass is horizontally moved and hoisted, combined hoisting is conducted through the two moving cranes under the action of the balance bar, the connecting frame, the fixing frame and the suction cup frame, the device can be used for hoisting the ultra-large plate glass large in size and heavy, the installation performance is improved, and the cost is reduced. And larger travelling crane equipment is not required, so that the cost is saved.

A method for protecting and isolating crane equipment in a humid environment in a tailwater surge chamber of a hydropower station adopts a "three-machine-one-hole" tailwater tunnel planning arrangement in the tailwater surge chamber. The three tailwater pipes of every three units are connected to one tailwater tunnel. Partition walls are used to separate and isolate every two tailwater tunnels into independent units. An upper isolation room is constructed with the crane track foundation surface above the partition wall as a fulcrum to protect the crane body and electrical equipment. A lower isolation room is constructed with the upper end surface of the partition wall as a fulcrum to protect the hydraulic grab beam. During the power generation process, the crane equipment and the hydraulic grab beam are protected by the upper and lower isolation rooms. During the driving phase, the upper and lower isolation rooms are opened by operating a controller, allowing the crane equipment to drive out of the upper and lower isolation rooms and enter an operating position. This effectively protects the equipment from water vapor erosion, provides a dry parking environment, and ensures the safe operation of the equipment.

The invention relates to the technical field of crane equipment, in particular to a multifunctional platform type lorry-mounted crane which is characterized in that when a hoisting rope is wound or unwound, a double-shaft motor drives two driving gears to rotate, and the driving gears are meshed with driven gears located on linkage rods, so that the linkage rods are driven to rotate; a linkage rod drives two rotating rods to rotate through a first driving bevel gear and a first driven bevel gear, worms on the rotating rods are meshed with worm wheels at the two ends of a take-up shaft, then the take-up shaft is driven to rotate, and winding or unwinding of a lifting rope is achieved. In the transmission mode, worm gear and worm transmission has self-locking performance, and when the motor stops rotating, the worm gear cannot drive the worm to rotate under the action of the gravity of the hoisting rope and the hoisted object, so that the state of the hoisting rope can be stably kept, the problem that the state is unstable due to the fact that the self-locking capacity of the motor is insufficient independently is solved, and the service life of the hoisting rope is prolonged. And the operation precision and quality are effectively improved.

The utility model relates to a cantilever crane with an adjustable stand column height, which relates to the field of crane equipment and comprises a telescopic stand column mechanism, a rotary arm, a rotary driving device arranged on the rotary arm and an electric hoist, the telescopic stand column mechanism comprises an inner stand column, an outer stand column, a lifting driving assembly and a guiding assembly, a mounting sliding groove is formed in the outer stand column, one end of the inner stand column is inserted into the mounting sliding groove, the other end of the inner stand column is connected with the rotating arm, and the lifting driving assembly is used for driving the inner stand column to ascend and descend in the mounting sliding groove; the guide assembly is used for guiding lifting of the inner stand column. When the cantilever crane works, the inner stand column is lifted, so that the cantilever crane can meet the lifting height of lifted objects, and when the bridge type double-beam crane needs to be used, the inner stand column is lowered, so that the safety in the lifting process is improved, and collision accidents are reduced.

The invention provides a quay crane tilting adjustment control system and quay crane equipment, and relates to the technical field of quay cranes. The quay crane tilting adjustment control system is provided with a far-end host, a position detection piece and a tilting controller, the far-end host is used for transmitting a target position to the tilting controller, and then the tilting controller is used for controlling a driving hydraulic cylinder to move towards the target position according to the target position and position information detected by the position detection piece. As the remote host only adjusts the target position before tilting adjustment, the control process is performed through the tilting controller, and the tilting controller can be directly arranged and mounted on the quay crane; therefore, the technical problems of low control precision and long adjustment time caused by network delay in the control instruction transmission process in the control process are effectively avoided.

The utility model provides a fork and crane integrated machine, include: fork and crane equipment, fixed arm, rotary arm, telescopic link and adjusting mechanism, wherein, fixed arm installs on the outer wall of fork and crane equipment, rotary arm installs on fixed arm, telescopic link installs in the inside of rotary arm, adjusting mechanism includes fixed frame, power source and cargo fork, wherein, fixed frame installs on the outer wall of fork and crane equipment, power source installs on the outer wall of fixed frame, cargo fork links to each other with the output of power source. The fork and crane integrated machine of utility model embodiment, through the setting of adjusting mechanism, power source telescopic control cargo fork's transverse distance, whether it is neat tray goods or size irregular scattered goods, can realize stable fork and take.

The utility model discloses a special embedded screen hook structure for wharf tire crane equipment, which relates to the technical field of informatization transformation of wharf mechanical equipment and comprises a hook fixing part and a bearing back plate, a threaded sleeve ring is additionally arranged at the middle end in the hook fixing part, and hook bodies are additionally arranged on two sides of the outside of the hook fixing part. A limiting sliding groove is formed in the middle end of the interior of the hook fixing piece, meanwhile, a limiting sliding block is connected into the limiting sliding groove, a bearing back plate is arranged outside the limiting sliding block, a mounting abutting block is additionally arranged at the middle end of the exterior of the bearing back plate, threaded mounting grooves are formed in the two sides of the interior of the mounting abutting block, and meanwhile mounting bolts are connected into the threaded mounting grooves; mounting plates are distributed above the hook fixing pieces, and connecting threaded grooves are formed in the mounting plates. According to the embedded screen hook structure special for the wharf tire crane equipment, a screen can be rapidly disassembled and assembled, and the information interaction efficiency is enhanced while the space utilization rate is increased.

The utility model provides movable hydraulic support pin shaft carrying equipment which comprises a vehicle body, a walking mechanism is arranged at the bottom of the vehicle body, a transportation platform and a stand column are arranged on the vehicle body, and a folding arm crane is rotatably arranged on the stand column. The folding arm crane comprises a main cantilever and an auxiliary cantilever, the main cantilever and the auxiliary cantilever are both perpendicular to the stand column, one end of the main cantilever is rotationally connected with the stand column, the other end of the main cantilever is rotationally connected with one end of the auxiliary cantilever, and a lifting machine is arranged at the other end of the auxiliary cantilever. The movable hydraulic support pin shaft carrying equipment has the advantages that workpieces such as pin shafts can be carried vertically by adopting the folding arm crane equipment, and the problem that the workpieces are likely to overhang during carrying is solved; the vehicle body and the folding arm crane are high in flexibility, and manual carrying is facilitated.

The application relates to the technical field of shore-to-ship crane equipment, in particular to a shore-to-ship crane, a remote operation system and method thereof and a remote control device. The shore-to-ship crane remote operation system comprises a first preset number of sea-side container loading operation devices and a second preset number of land-side container loading operation devices. The sea-side container loading operation device is used for being in communication connection with the shore-to-ship crane equipment, acquiring a first instruction of a user and controlling the shore-to-ship crane equipment based on the first instruction to complete sea-side container loading operation. The land-side container loading operation device is used for being in communication connection with the shore-to-ship crane equipment, acquiring a second instruction of the user and controlling the shore-to-ship crane equipment based on the second instruction to complete land-side container loading operation. In a once-transferring process, the ratio of the time length of manual intervention in sea-side container loading to the time length of manual intervention in land-side container loading is a first ratio, the ratio of the first preset number to the second preset number is a second ratio, and the absolute value of the difference between the first ratio and the second ratio is less than a preset value. In this way, manpower and material resources can be better saved.

The utility model belongs to the technical field of monorail crane equipment, and provides a curved surface type frame structure lifting beam which comprises a trolley bearing beam, a frame beam, a swing beam and a middle beam, the trolley bearing beam, the frame beam and the swing beam are arranged on the same plane, the whole frame beam is H-shaped, the two sides of the frame beam are connected with the trolley bearing beam, the swing beam is installed in the middle of the frame beam, and the two sides of the swing beam are connected with the middle beam through chains. A hydraulic oil cylinder is arranged in the middle beam and is connected with a lifting chain; according to the utility model, the self space of the hoisting beam is reduced, the applicable roadway height range of the monorail crane is increased, the stress of the hoisting beam is more uniform, the strength is higher, the maneuverability of the monorail crane during horizontal bending is enhanced, the stuck fault is prevented, the intelligent degree of the monorail crane is increased, and the hoisting safety is ensured.

This invention discloses a suspended rotary buffer offshore crane, relating to the field of lifting equipment. The crane body is mounted on the upper end of a pre-reserved base, with a drive component located inside the base and a drive component output component located outside the drive component. The drive component output component is connected to the lower end of the crane body. An external docking component is nested on the outer side of the lower end of the crane body, and a vertical pre-reserved slot is formed on the inner side of the crane body. This suspended rotary buffer offshore crane uses an auxiliary pressure relief structure to guide and relieve the high-intensity wind force borne by the crane body, avoiding greater adverse effects from direct wind force. It avoids the rigid locking mechanism of hydraulic balance valves inside the crane equipment under normal conditions. Therefore, under strong wind conditions, the adaptive auxiliary pressure relief structure prevents the continuously locked rotary gearbox from being easily damaged by external forces.

The utility model relates to a track end buffering and limiting device for a monorail crane locomotive, and belongs to the field of monorail crane equipment. According to the technical scheme, the rail end buffering and limiting device for the monorail crane locomotive is arranged at the end of a monorail crane rail and comprises a movable buffering plate, a spring, a fixed buffering plate and a pair of fixed plates. The two fixing plates clamp the monorail crane rail to be arranged on the outer side of the end portion, fixing holes located above and below the monorail crane rail are formed in the fixing plates, and the fixing holes of the two fixing plates are connected through bolts; the fixed buffer plate is arranged on the edge of the inner side, opposite to the end of the track, of the fixed plate, the spring is arranged between the fixed buffer plate and the movable buffer plate, and a guide pin is arranged in the spring. When the monorail crane runs to the ends of the rails, the monorail crane is in contact with the buffering and limiting device for the ends of the rails, the springs are compressed, kinetic energy of the monorail crane is absorbed, the monorail crane finally stops running, and the buffering and limiting functions are achieved.

The utility model relates to the technical field of offshore drilling, and discloses an offshore drilling platform hoisting tank which comprises a first support, and a ton tank body is placed in the first support. According to the offshore drilling platform hoisting tank, a user fixes the position of a first pressing plate, after the first pressing plate is fixed, a first safety induction lamp can send out a signal to remind the user that the first pressing plate is fixed, and at the moment, the user is connected with air hoisting equipment through a first hoisting ring and moves; the tonnage tank body is limited in the first support through the first pressing plate, so that the tonnage tank body does not shake or shift in the hoisting process, the safety risk caused by material shaking is greatly reduced, and the limitation of the first pressing plate on the tonnage tank body can be quickly removed by removing the connection between the first extension block and the first clamping block; the material can effectively improve the efficiency of offshore operation, and can be used for storing drilling fluid, fuel and other important materials.

The application discloses a kind of double-bridge type hoisting equipment anti-interference trajectory tracking and anti-swing control method, construct the dynamics model of variable rope length double-bridge type hoisting equipment under the condition of unknown external disturbance, the dynamics model is expressed as the dynamics model of cascade system form by separating the dynamics model of energy drive state and cannot drive state, the actual coordinates of load centroid are subtracted from the desired trajectory vector of load centroid to obtain trajectory error vector, the load position error integral is obtained by trajectory error vector, then LSNF function is constructed, position control parameter matrix and speed control parameter matrix are defined, then pseudo-controller is constructed, speed error vector is constructed, finally actual controller is constructed according to speed control parameter matrix, speed error vector, trajectory error vector, pseudo-controller and the dynamics model of cascade system form.Using the technical scheme, the load positioning is more accurate, and the anti-interference ability of cable is stronger.

The utility model discloses a height-adjustable crane supporting leg locking device which comprises two supporting frames, first adjusting assemblies are arranged in the two supporting frames, second adjusting assemblies are arranged at the upper ends of the supporting frames, a sliding rail is arranged between the first adjusting assemblies, hoisting equipment is connected to the sliding rail in a sliding mode, and the hoisting equipment is connected to the second adjusting assemblies in a sliding mode. Two moving wheels are arranged at the bottom end of the supporting frame, by arranging a second adjusting assembly, the flexible adjustment of the height of the crane supporting leg and the single-side multi-point supporting capacity are achieved, the adaptability and operation safety of the equipment are remarkably improved, a first motor drives a threaded rod to rotate, an adjusting block in threaded connection moves up and down along an adjusting frame, and the supporting leg can be adjusted conveniently. Therefore, the height of the supporting legs is changed, it is ensured that the crane can still be kept in a horizontal state on the uneven ground or under different terrain conditions, the precision and efficiency of lifting operation are optimized, in addition, each supporting leg can be conveniently and independently adjusted and locked, and the crane can be supported at multiple positions on the single side.

The utility model relates to a special tool for treating steel wire rope out of groove belongs to metallurgical industry crane equipment technical field. Technical scheme is: U type clamping plate (1) is one, screw rod (2), hook (3), turnover bracket (4), nut (5) and shaft sleeve (6) are two, and turnover bracket (4) is the integral structure of the middle supporting ring (8) and two side trunnions (7) welding, screw rod (2) passes through in the middle supporting ring (8) movably, nut (5) is welded on hook (3), nut (5) is connected on screw rod (2), shaft sleeve (6) is welded on both sides of U type clamping plate (1), and the shaft sleeve (6) of both sides of U type clamping plate (1) is sleeved on the trunnion (7) in turnover bracket (4), and the whole is left-right symmetrical arrangement. The utility model has the beneficial effects that: the steel wire rope can be conveniently and quickly handled from the out of groove failure in the pulley, and will not cause harm to the steel wire rope.

The present invention relates to the technical field of crane equipment, and discloses a lateral safety structure for a crane, which includes a lateral telescopic outrigger, comprising a box body and a telescopic leg nested and connected in the box body; a vehicle frame fixedly connected to the box body; a lock provided between the telescopic leg and the vehicle frame / box body for locking the telescopic leg and the vehicle frame, the lock having a locking position for connecting the telescopic leg and the vehicle frame into one body and an unlocking position for separating the telescopic leg and the vehicle frame from each other; the lock includes a fixing member and a hook, the hook is rotatably connected to the fixing member, and the hook rotates around the fixing member to move from the locking position to the unlocking position. The present invention can safely lock the lateral telescopic outrigger of the crane, avoiding accidents caused by the extension of the lateral telescopic outrigger of the crane during driving.