909 results about "Aerial work platform" patented technology

The invention relates to the technical field of risk prediction, in particular to a wireless sensor-based high-altitude operation online monitoring and early warning system and a wireless sensor-based high-altitude operation online monitoring and early warning method. The method comprises the following steps: deploying multiple types of wireless sensor arrays for the aerial work platform to collect structural stress data, environment temperature and humidity and personnel state data, and constructing a multi-source standard data set; performing space-time alignment on the multi-source standard data set to generate a synchronized high-altitude data set; constructing a three-dimensional feature space by using the synchronized high-altitude data set, and generating a high-altitude operation fusion feature matrix; generating a high-altitude operation risk prediction model based on the high-altitude operation fusion feature matrix; therefore, through fusion of multi-source data, alignment of spatial-temporal characteristics, dynamic simulation of risk evolution and construction of a multi-level response mechanism, the risk prediction precision and real-time response capability in high-altitude operation are improved, and a comprehensive, systematic and efficient safety management and control system is finally formed.

The invention discloses an aerial work platform boom system control method, device and equipment and a medium. The method comprises the steps that whole machine inclination direction data of the folding arm type aerial work platform are collected in real time through an X-axis angle sensor arranged in a rotary table counterweight system in the aerial work platform, and the working condition type of the whole machine is determined according to the inclination direction data; calculating a real-time torque value of each torque module according to a sensor in each functional system; when the target folding arm control condition is met, according to a target folding arm control strategy corresponding to the target folding arm control condition, the amplitude variation angle and the telescopic state of the telescopic folding arm are controlled; and when the moment balance condition is met, the control over the boom system is stopped. According to the technical scheme of the embodiment of the invention, according to factors such as mechanical properties, dynamic characteristics and the like of the folding arm and the main arm, the telescopic amplitude and the amplitude variation amplitude of the folding arm and the main arm are cooperatively controlled, so that different operation height and position requirements are met on the premise of ensuring the stability of the platform.

The utility model relates to the field of aerial work platforms, and discloses a liquid collecting device and an aerial work platform, and the liquid collecting device comprises a steering oil cylinder liquid receiving disc which is provided with a liquid receiving cavity used for receiving leaked liquid of a steering oil cylinder; the steering oil cylinder liquid receiving disc is detachably arranged on the liquid receiving disc mounting seat, the liquid receiving disc mounting seat is provided with a connecting part, and the connecting part is used for being connected with a cylinder body of a steering oil cylinder; and the limiting structure has a locking state and an unlocking state, when the limiting structure is in the locking state, the steering oil cylinder liquid receiving disc can be locked in the liquid receiving disc mounting base, and the steering oil cylinder liquid receiving disc can be taken out of the liquid receiving disc mounting base when the limiting structure is in the unlocking state. According to the liquid collecting device and the aerial work platform, leaked liquid of the steering oil cylinder can be collected, and the liquid leakage problem of the aerial work platform can be solved.

The utility model provides a crawling ladder aerial work platform, and relates to the technical field of aerial work equipment. The crawling ladder aerial work platform comprises a walking chassis, a lifting support and a work platform, the work platform is installed on the lifting support, a supporting frame is hinged to the walking chassis, a pitching driving mechanism is hinged to the walking chassis and used for adjusting the pitching angle of the supporting frame, and the lifting support is installed on the supporting frame. A first telescopic supporting leg mechanism and a second telescopic supporting leg mechanism are installed at the two opposite ends of the supporting frame correspondingly, and the first telescopic supporting leg mechanism and the second telescopic supporting leg mechanism can be supported on a working face through stretching and retracting. Based on the technical scheme, the crawling ladder aerial work platform can work on inclined working faces such as stairs.

An aerial lift that is interlocked with a fall-protection safety apparatus and may be further interlocked with at least one additional safety apparatus. The aerial lift is equipped with a monitoring system that is configured to detect whether a connector of a safety line of the fall-protection apparatus appears to be connected to a safety harness of a user of the aerial lift.

The utility model discloses a novel supporting leg control valve which comprises a control module assembly and a plurality of oil cylinder supporting legs, and two hydraulic pipes are installed between the control module assembly and the oil cylinder supporting legs in a communicated mode. The hydraulic control one-way valve is additionally arranged on the hydraulic pipe of the rod cavity, the hydraulic control one-way valve is of a cone valve structure, internal leakage is small, oil pressure of the rod cavity can be effectively kept, the hydraulic control one-way valve is slightly different from a device without a hydraulic control one-way valve in the prior art during normal work, but after the device is stored for a period of time, the hydraulic control one-way valve is not damaged. The hydraulic control one-way valve with a rod cavity can play a role in keeping, so that a piston rod cannot extend out due to leakage of an oil cylinder, the problem is generally solved in an electric control mode in the prior art on an aerial work platform with supporting legs, and the defect is that the problem of time delay occurs during walking. The problem that the oil cylinder leaks and stretches out is solved in a hydraulic mode, and walking can be achieved without the landing leg contraction action in the walking process.

A lift device includes a chassis, a lift assembly supported on the chassis, a platform assembly including a platform floor and a rail, a sensor coupled to the platform assembly and positioned adjacent the platform floor, a control system in communication with the lift assembly and the sensor, and an operator input implement in communication with the control system. The sensor is oriented to sense objects above the platform assembly. The platform assembly is displaceable by the lift assembly between a raised position and a lowered position. The control system is programmed to shut down an active function in response to detection of an object by the sensor and to re-engage the active function in response to operation of the operator input implement.

The invention belongs to the technical field of electric overhead working trucks, and provides a narrow-body self-walking working platform with a hybrid power system, which comprises a walking platform, a working device and a control system. The walking platform adopts a narrow-body four-wheel-drive chassis and is provided with a hybrid power system of a fuel engine and an electric pump, and the control system integrates an environment sensing unit, a stability calculation unit, a track prediction unit, an early warning unit and a control decision unit. The environment sensing unit constructs a high-precision three-dimensional environment map; the stability calculation unit calculates the overall gravity center position and the dynamic stability boundary of the platform in real time; the track prediction unit establishes a dynamic hydraulic system response model; and the early warning unit adopts an artificial potential field method to calculate a safety avoidance path. And the control decision unit automatically adjusts the control instruction according to the risk type and degree. According to the invention, the organic combination of environment perception, dynamic stable control, prediction trajectory planning and electrified body safety protection is realized, and the operation safety and efficiency of the aerial work platform are obviously improved.

The utility model relates to the field of aerial work platforms, and discloses an aerial work platform which comprises a chassis provided with a maintenance opening and a door body capable of sealing the maintenance opening. The power unit is arranged in the chassis; the liquid collecting assembly is arranged in the chassis and located below the power unit, the liquid collecting assembly comprises a power unit liquid receiving disc and a liquid receiving disc mounting piece, the liquid receiving disc mounting piece is provided with a liquid receiving disc sliding groove, and the power unit liquid receiving disc is arranged in the liquid receiving disc sliding groove in a sliding mode and is provided with a liquid receiving cavity used for receiving leaked liquid of the power unit; when the door body is in a closed state, the power unit liquid receiving disc can be locked in the liquid receiving disc sliding groove, and the power unit liquid receiving disc can be pulled out of the liquid receiving disc sliding groove when the door body is in an open state. According to the aerial work platform, leaked liquid of the power unit can be collected, and the liquid leakage problem of the aerial work platform can be solved.

The utility model relates to the field of aerial work platforms, and discloses an oil cylinder liquid collecting assembly and an aerial work platform, and the oil cylinder liquid collecting assembly comprises an oil cylinder liquid receiving part, a liquid collecting part and a liquid collecting part, the sliding groove piece is arranged below the oil cylinder and provided with a liquid receiving disc sliding groove, and the oil cylinder liquid receiving piece is arranged in the liquid receiving disc sliding groove in a sliding mode; and the liquid baffle is arranged on a mounting structural part of the oil cylinder and is used for guiding leaked liquid of the oil cylinder into the liquid receiving cavity. The oil cylinder liquid collecting assembly can comprise two liquid baffles which are arranged in a spaced mode, and a liquid guiding flow channel can be defined between the inner side plate faces of the two liquid baffles and the peripheral wall of the installation structural part. The lower plate ends of the two liquid baffles can be bent in the direction close to each other, so that an outlet in the lower end of the liquid guide flow channel is gradually narrowed. According to the oil cylinder liquid collecting assembly and the aerial work platform, leaked liquid of the oil cylinder can be collected, and the liquid leakage problem of the aerial work platform can be solved.

The aerial work platform comprises a self-built channel, a climbing module, a working arm and a working module, the working module is connected with the climbing module through the working arm, the climbing module is connected with the self-built channel, and the self-built channel is used for providing a climbing path for the climbing module; the climbing module comprises a first rolling assembly and a second rolling assembly, the first rolling assembly and the second rolling assembly are symmetrically arranged on the two opposite sides of the self-built channel respectively and make rolling contact with the self-built channel through rolling wheels, and the rolling wheels are made of elastic materials; the two opposite sides of the first rolling assembly are connected with the second rolling assembly through the contraction fixing pieces correspondingly, the contraction fixing pieces are used for controlling and fixing the distance between the first rolling assembly and the second rolling assembly, and therefore when rolling wheels do not rotate, the rolling wheels in the first rolling assembly and the second rolling assembly can generate extrusion force on the self-built channel, and the self-built channel is formed. And the climbing module is stabilized on the self-built channel. The stability and adaptability of the aerial work platform are improved.

The invention discloses an aerial work platform ramp rotation action stability control and adjustment method and a rotation device, and relates to the technical field of aerial work, and the method comprises the steps that a first horizontal tilt angle sensor detects a first angle value K; a second horizontal tilt angle sensor detects a second angle value L; when the first angle value K belongs to the interval of (0, 180 degrees), judging whether the second angle value L belongs to the interval of (K, K + 180 degrees), or when the first angle value K belongs to the interval of (180 degrees, 360 degrees), judging whether the second angle value L belongs to the interval of (K, 360 degrees) union (0, K-180 degrees), if so, judging whether the electric signal of the rotary handle is left, and if not, judging whether the electric signal of the rotary handle is right; if yes, the acceleration of the electric rotary motor is controlled to be executed according to a descending section curve W of the climbing driving force curve, and if not, the acceleration of the electric rotary motor is controlled to be executed according to an ascending section curve Q of the climbing driving force curve. The method can improve the problems of platform impact and shaking when the high-altitude platform is operated to rotate on the slope.

The invention relates to the technical field of robot and unmanned aerial vehicle control, and solves the technical problems that in the prior art, when an unmanned aerial vehicle platform carries a mechanical arm for operation, the total center of mass of a system drastically shifts due to movement of the mechanical arm, then dynamically changing disturbance torque is generated, and the attitude of an unmanned aerial vehicle is unstable and even out of control. The coupling dynamics compensation and vibration suppression method for the aerial work platform comprises the steps that feedforward compensation torque used for counteracting disturbance torque generated due to the change of the position of the total mass center is obtained and decoupled into a control instruction for controlling thrust of multiple rotor wings of an unmanned aerial vehicle platform through a mixed control matrix, and accurate control of the unmanned aerial vehicle platform is realized. According to the method, the self-adaptive feed-forward compensation mechanism is introduced, the mass center change caused by movement of the mechanical arm can be sensed and predicted in real time, the feed-forward compensation torque is generated accordingly, the disturbance torque generated accordingly is actively counteracted, and therefore the attitude stability and operation precision of an unmanned aerial vehicle platform are remarkably improved.

According to the intelligent storage battery state detection system and the control method, a dynamic early warning mechanism is constructed by monitoring voltage parameters of a storage battery device of an aerial work platform and real-time working condition parameters of a vehicle in real time, and early warning prompt is actively triggered when voltage abnormity or an electric quantity critical threshold value is detected; operation interruption caused by insufficient electric quantity in the operation process is effectively prevented, meanwhile, accurate monitoring of storage battery voltage early warning is enhanced through a closed-loop control algorithm, the operation reliability and the use safety of equipment are remarkably improved, and potential safety hazards caused by power supply faults are reduced to the maximum extent; according to the method, a self-adaptive charging strategy is synchronously integrated, bidirectional communication with a lithium battery management system is carried out based on periodic voltage monitoring data, accurate charging control is realized, continuous and stable operation of the aerial work platform is guaranteed, the use efficiency of the storage battery is synchronously improved, the maintenance cost is reduced, and a complete storage battery health management solution is formed.

The invention discloses an anti-collision safety control system using ultrasonic ranging, which is applied to an aerial work platform, the aerial work platform is provided with a first controller and a second controller, and the first controller and the second controller are in communication connection; the second controller drives the assembly to work according to the motion control instruction of the first controller so as to drive the aerial work platform to move; the safety control system comprises an ultrasonic ranging module used for detecting the distance between the aerial work platform and an obstacle to obtain a distance detection result. The third controller is in communication connection between the first controller and the second controller, and the third controller is used for generating a control signal according to the distance detection result and selectively transmitting the motion control instruction output by the first controller in an unvarnished mode or enabling the second controller to drive the aerial work platform to stop moving. Collision accidents can be conveniently and efficiently avoided.

An aerial work platform and a floating control system thereof, the system comprising a driving mechanism, a hydraulic oil tank, a hydraulic pump, a floating control valve, a floating mechanism, a boom function valve, an actuator, and an accumulator: the floating control valve comprises a first one-way valve, a second one-way valve, a pressure reducing valve, and a logic valve; and an oil inlet of the first one-way valve serves as the oil inlet of the floating control valve, an oil outlet of the first one-way valve is connected to a pipeline connecting the accumulator, the pressure reducing valve and the logic valve, the logic valve is connected to the second one-way valve, an oil outlet of the second one-way valve serves as the feedback oil port of the floating control valve, when the hydraulic pump is a variable displacement pump, a feedback oil port of the floating control valve and a feedback oil port of the boom function valve are connected to a feedback oil port of the variable displacement pump; when the hydraulic pump is a fixed displacement pump, a feedback oil port of the floating control valve is connected to a feedback oil port of the boom function valve. The invention can reduce the power loss and improve the reliability of the system.

A leveling mechanism for an aerial work platform. The leveling mechanism for an aerial work platform comprises a leveling mounting base (1), a leveling driving assembly and a leveling gear (3), wherein the leveling mounting base (1) is used for connection to a boom of an aerial work platform; the leveling gear (3) is used for connection to a work bucket of the aerial work platform; and the leveling driving assembly comprises a driving electric motor (21), a rotating lead screw (221), a moving rack unit (23) and a moving support (24), the rotating lead screw (221) being rotatably arranged through the leveling mounting base (1) and being in driving connection with the driving electric motor (21), the moving rack unit (23) being connected to the rotating lead screw (221) and being movable under the drive of the rotating lead screw (221), the direction of extension of the moving rack unit (23) being parallel to the direction of length of the rotating lead screw (221), and the moving support (24) being arranged on the moving rack unit (23) and being fitted to the leveling mounting base (1). The leveling mechanism levels the work bucket by means of electric driving, the response speed is high, and the safety is high.

An aerial work platform, and a method and apparatus for safety control of an aerial work platform, said method comprising: determining whether a work platform (100) is located at an upper limit position or a lower limit position; acquiring a first angle value of a scissor frame (200) corresponding to the upper limit position, and using the first angle value as an upper limit calibration value; or acquiring a second angle value of the scissor frame (200) corresponding to the lower limit position, and using the second angle value as a lower limit calibration value; acquiring a current angle value of the scissor frame (200) and a current inclination angle value of a chassis (300); and, on the basis of the current angle value of the scissor frame (200) and the current inclination angle value of the chassis (300), determining an angle compensation value for the work platform (100), and, on the basis of the difference between the angle compensation value and the upper limit calibration value or the lower limit calibration value, determining a limit position of the work platform (100). Thus, a limiting structure or a limiting switch can be replaced for limiting, operation is intelligent, the reliability is high, and fault alarms caused by a stroke switch being stuck can be prevented, so as to save operation costs.

The invention relates to the technical field of scissor fork truck brake control, and discloses a scissor fork type aerial work platform walking brake control system and method.The scissor fork type aerial work platform walking brake control method is characterized in that an operation handle enables a key to reset and triggers a brake request, and initialization and triggering of a brake control sequence are achieved; the state of the shear fork truck is monitored, gradient and load information is collected, and the external environment working condition and the internal load state are synchronously obtained by calling data of a tilt angle sensor and a pressure sensor in real time; according to rapid braking of the shear fork truck, based on data collected in real time, a three-stage cooperative braking strategy of speed reduction, pressure relief and turn-off is adopted, and based on gradient information collected in real time, the switching time sequence between stages is adjusted in a self-adaptive mode, and accurate matching of the braking process, dynamic loads and topographic conditions is achieved; therefore, the effect of considering the braking efficiency and the terminal parking stability on the premise of no mechanical wear is achieved; and the shear fork truck completes braking and tends to stop stably. And different working conditions can be quickly, stably and adaptively adapted.

A multi-tower linkage type aerial hoisting platform includes: four tower crane body lifting / lowering parts respectively disposed in an outer periphery of a building to form a rectangle through enclosure, and including a tower crane body and a self-climbing lifting / lowering system that is capable of climbing or descending step by step along the tower crane body; four tower-crane-body-connected support beams, respectively disposed on two opposite self-climbing lifting / lowering systems, where a hoisting platform enclosed by the tower-crane-body-connected support beams is driven by the self-climbing lifting / lowering systems to move up and down synchronously; and four movable tower crane bases, respectively disposed at lower ends of the four tower crane body lifting / lowering parts, including movable chassis that are used as movable supports with a variable platform angle and support parts disposed on the movable chassis, where four corners of the support parts are respectively provided with rotary drilling fastening parts.

An aerial lift that is interlocked with a fall-protection safety apparatus and may be further interlocked with at least one additional safety apparatus. The aerial lift is equipped with a monitoring system that is configured to detect whether a connector of a safety line of the fall-protection apparatus appears to be connected to a safety harness of a user of the aerial lift.

The invention relates to the technical field of scissor lift trucks, and discloses a scissor type lifting aerial work platform which comprises a movable base and a working platform, a unit diagonal bridging is arranged between the movable base and the working platform, and the unit diagonal bridging comprises a first telescopic arm, a second telescopic arm and a driving assembly. The first telescopic arm and the second telescopic arm are rotationally connected with each other, and the driving assembly drives the telescopic movable ends of the first telescopic arm and the second telescopic arm to synchronously stretch out and draw back. According to the scissor-type lifting aerial work platform, the unit cross bridging lifting working platform formed by arranging the first telescopic arm and the second telescopic arm in a scissor-type mode is adopted, the two ends of the first telescopic arm and the two ends of the second telescopic arm are the telescopic movable ends, the telescopic movable ends synchronously stretch out and draw back, the lifting distance of the unit cross bridging is increased, and the working efficiency is improved. And it can be guaranteed that the occupied area of the upper side and the lower side of the unit diagonal bridging is not changed, and the stability of the unit diagonal bridging is improved.

The invention relates to the technical field of aerial work equipment, in particular to an aerial work platform and a traction walking control method thereof. The power unit is fixedly arranged in the middle of the chassis; the auxiliary walking mechanism is connected with the chassis through a bolt, a first connecting piece and a self-lubricating shaft sleeve; the control oil cylinder acts to realize the angle swing of the coupling auxiliary wheel; the supporting legs are arranged on the periphery of the chassis, and supporting leg oil cylinders and supporting leg control valves are arranged on the supporting legs. The problem that a dragging type aerial work platform is difficult to move in a working place is solved, so that the labor intensity of an operator is relieved, and the purpose of walking freely is achieved.

The invention discloses a ground pit detection method, device and equipment and a storage medium, and the method comprises the following steps: collecting ground 3D point cloud data through a laser radar, and obtaining the size and position information of an obstacle; road surface image information is collected through a binocular camera, the width and the position of a road edge are obtained, and current pit negative obstacle information is judged and output in combination with a point cloud negative obstacle recognition type; and ground pits are recognized through a YOLO target detection algorithm, when the pits are recognized, position and size information of the pits is calculated through a binocular positioning algorithm, and the position and size information and a negative obstacle judgment result are subjected to multi-modal fusion to obtain final pit information. Different pit sizes can be detected and distinguished, the vehicle body posture and the running speed of the aerial work platform vehicle can be adjusted in a diversified mode according to the different pit sizes, and the flexibility and safety of the aerial work platform for dealing with ground pit conditions are remarkably improved.

The invention discloses an aerial work platform intelligent supervision method and system based on data analysis. The method comprises the following steps: S1, collecting operation state data of an aerial work platform and behavior video stream data of an operator; s2, inputting a dynamic time warping network to carry out cross-modal time alignment, and outputting a key state feature sequence; s3, inputting the behavior video stream into a double-path Transform model, and generating an operation behavior representation sequence; s4, jointly modeling key state features and behavior characterization, and constructing a risk scoring function; s5, the risk scoring result is compared with a grade threshold value, an early warning mechanism is triggered, and a control instruction is generated; s6, executing platform control actions, such as speed limiting, descent, locking, pause and recording feedback; and S7, updating the model by taking the key state characteristics, the behavior characterization, the scoring result and the feedback as samples. According to the invention, intelligent identification and early warning of high-altitude operation states and behaviors are realized, and operation safety and supervision efficiency are improved.

The utility model discloses a high-altitude platform construction device which comprises a bearing beam and an auxiliary beam which are arranged between concrete framework beam faces, a plurality of auxiliary stand columns are arranged on the lower portion of the bearing beam in a supporting mode, a plurality of platform beams are laid on the upper portion of the bearing beam and the upper portion of the auxiliary beam, and steel fence boards are laid on the platform beams. According to the scheme, the aerial work platform is formed by the bearing beams, the auxiliary beams and the platform beams, meanwhile, the aerial work platform is fixed through the Z-shaped steel plates and the linear supporting plates, the stability is improved by adding the auxiliary stand columns, the structure is simple, the aerial work platform can be conveniently obtained from a construction site, assembling is convenient, the construction time can be shortened, and the construction efficiency is improved.

The invention discloses an overhead working truck safety early warning method and system and a storage medium. The method comprises the steps that real-time load, height and inclination angle data of an overhead working truck are acquired through a multi-source data acquisition module and transmitted to a data analysis decision module; calculating the maximum allowable load at the current height through a table look-up method or a height-load relation model based on the collected load and operation height data, and dynamically adjusting a load alarm threshold value; independently judging the overload risk and the inclination risk to generate a control instruction; operation height, load and inclination angle data are fused, a linkage risk index is calculated through a weight-inclination angle-height dynamic correlation model, a composite risk is identified, and a control instruction is generated; and the early warning and execution control module receives the control instruction to control the equipment to act and feeds back an execution result. Dynamic overload threshold adjustment, inclination grading response control, multi-source data fusion overload and anti-overturning system cooperative judgment of composite risks are realized, and the flexibility and effectiveness of risk early warning are enhanced.

An on-board electronics system of an aerial work platform moves the wheels between a retracted and extended position by pivoting a respective arm. The method comprises the following successive steps: a) orienting each wheel tangentially to the pivoting path of the corresponding arm, b) moving the wheel by pivotally actuating the corresponding arm, and c) reorienting the wheel so as to enable another translation of the aerial work platform. The steps are performed in different orders between the wheels so that at any time at least one of the following conditions is complied with: —the brake system of at least one wheel is active, —at least one wheel is rotated by a motorised drive, —the orientation of the wheels relative to one another prevents any translation of the aerial work platform (1) on the ground as a result of gravitational force.

The invention discloses an overhead working truck bed-shaped arm section optimization method and system considering stability and rigidity. The method comprises the steps that geometric design parameters of all polygonal sections of the box-shaped arm are set, and the geometric design parameters of all the polygonal sections jointly form an adjustable geometric design space; establishing a three-dimensional finite element analysis model of the box-shaped arm, and endowing the three-dimensional finite element analysis model with material attributes; according to the actual use requirement of the box-shaped arm, the analysis working condition of the three-dimensional finite element sub-model is defined as the most stringent working condition combination; and setting an optimization target, executing a multi-target optimization algorithm and solving to obtain geometric design parameters of each polygon section after optimization. According to the method, through scientific multi-objective optimization simulation, the coupling and restricting relation between two core performance indexes of local stability and deflection (rigidity) in boom design is systematically solved, so that the section shape with the optimal comprehensive performance under the given working condition is obtained.

The embodiment of the invention provides a device and a method for improving the vibration compensation of an aerial work platform carrying robot (BLMR) system. The device can reduce the cost and improve the operation precision and safety of the BLMR at the same time. Aerial work platforms typically include scalable, large scale, variable stiffness structures that are affected by complex non-linear static deformations and vibrations induced by dynamic movement / gust. This vibration may be compensated at an end effector of the robot by a Jacobian matrix-based vibration compensation JVCI process via the IMU. The output of the JVCI process may depend on IMU feedback and may be combined with other vibration damping techniques, including various feed-forward techniques.