131 results about "Mobile crane" patented technology

The disclosure relates to a mobile work machine, in particular a mobile crane, which comprises a movable undercarriage, a superstructure which is rotatably mounted on the undercarriage and which is separably connected to the undercarriage via a coupling device, and a mechanical power transmission means, wherein the undercarriage comprises a motor and a first shaft that can be mechanically driven by the motor and that is mechanically connected to a second shaft of the superstructure via the power transmission means. In accordance with the disclosure either the power transmission means is mounted rotatably on the undercarriage and is detachably connected to the second shaft via a mechanical interface or the power transmission means is mounted on the superstructure for conjoint rotation and is detachably connected to the first shaft via a mechanical interface. The disclosure further relates to a drive system for a work machine according to the disclosure.

The present invention relates to a crane cabin door system for a mobile crane, with - a door designed to close an access opening of the crane cabin and guided between an open position and a closed position by a guide mechanism; - a door drive designed to move the door between the open position and the closed position; - a control unit connected to the door drive and at least one control element, which controls the door drive in accordance with a user input made via the at least one control element.

The invention discloses a mobile crane control method and system based on space attitude perception, and relates to the technical field of cranes, and the method comprises the following steps: obtaining first crane data; according to the first crane data, calculating tower section center point coordinates and Euler angle attitudes based on a binocular vision three-dimensional reconstruction algorithm to obtain second crane data; inputting the second crane data into a self-adaptive fuzzy PID (Proportion Integration Differentiation) controller, and generating a hydraulic valve opening degree control instruction by combining pre-acquired environmental data and load weight dynamic setting control parameters; and controlling and driving a crane slewing mechanism according to the hydraulic valve opening control instruction. The method is used for solving the problems of insufficient target positioning precision of the mobile crane and poor stability of a control mechanism under complex working conditions.

The utility model discloses a mobile crane suitable for small factories, and relates to the technical field of cranes, the mobile crane comprises a support plate, a suspender rotatably arranged on the support plate and a variable speed driving mechanism arranged on the support plate, the variable speed driving mechanism is in transmission connection with the suspender, and a lifting rope is wound on the suspender; four sets of transverse telescopic mechanisms are arranged on the supporting plate in a circumferential array mode, a vertical lifting rod is arranged at the end, away from the supporting plate, of any transverse telescopic mechanism, and universal wheels are arranged at the bottom ends of the vertical lifting rods. By controlling the extension of the four groups of transverse telescopic mechanisms, the transverse coverage space of the crane can be increased; the longitudinal coverage space of the crane can be increased by adjusting the length of the vertical lifting rod, so that the crane can adapt to lathes with different sizes; through the design of the variable-speed driving mechanism, the rotating speed of the lifting rod can be controlled, so that the crane can lift parts with different weights.

An embodiment relates to a mobile crane having an articulated body and an elongate boom attached to the body, the boom being for carrying a load when the crane is stationary and while the crane is mobile. The boom is articulated to provide a movement for lifting and lowering an end of the boom, and the boom is further articulated to provide a movement of the boom laterally. A further embodiment relates to controlling swing of a load carried at the end of a boom of a mobile crane by varying lateral orientation of the boom.

The invention relates to a steering system for a mobile work machine, in particular for a mobile crane, which comprises at least one mechanically steerable front axle, at least one trailing-steered rear axle, and at least one rear axle steerable by means of at least one steering cylinder. The front and rear axles are arranged one behind the other along a longitudinal axis of the steering system and comprise wheels whose axes of rotation, which are notionally extended on the side of the curve center when cornering, intersect a common steering pole plane perpendicular to the longitudinal axis. According to the invention, at least one trailing-steered rear axle is arranged between a front axle and the steering pole plane. The invention further relates to a mobile work machine with such a steering system.

The present invention relates to a mobile crane having a travelable undercarriage, a superstructure rotatably supported on the undercarriage, and a counterweight device couplable to the superstructure, wherein the counterweight device comprises a carrier plate on which one or more counterweight elements can be stacked, and at least one connection element extending substantially perpendicular to the carrier plate for coupling the carrier plate to the superstructure.

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.

The invention discloses an automatic monitoring and cleaning system and method for distributed reservoir branch blocking door sand, and belongs to the technical field of water conservancy projects. The system comprises a distributed energy module, a water pumping and desilting module, a monitoring module, a gate dam regulation and control module and a control module. Energy is provided through photovoltaic and wind power generation, pumping and desilting are conducted through a pump station or a pump ship connected through a flexible pipeline, and a spiral spring or a spiral protrusion or other anti-blocking devices are arranged at a pump inlet. The monitoring module monitors the water level difference and the flow velocity in real time through a radar water level gauge and a flow measuring camera. The gate dam regulation and control module comprises an assembled water and sediment retaining dam, a double-layer gate system and a movable crane. The control module automatically controls directional scouring and gate opening and closing according to monitoring data. Automatic monitoring, accurate cleaning and hydraulic breaking of the blocking door sand are achieved, the dredging efficiency is effectively improved, and communication of main and branch reservoir capacities of a reservoir is guaranteed.

The utility model discloses a suspended truss device for a crane pipe, which belongs to the technical field of loading crane pipes, is suspended on a trestle beam and comprises a cross beam frame and a crane pipe connecting seat, the cross beam frame consists of a Y-axis track frame, an X-axis track frame and a moving trolley, and the crane pipe connecting seat is fixed below the moving trolley. The movable trolley can move relative to the X-axis track frame or the Y-axis track frame so as to drive the crane pipe to move and align; according to the scheme, by designing the suspended truss device, the purpose of automatically moving and aligning a common crane pipe is achieved, that is, the automatic moving crane pipe which is compact in structure, stable in operation and low in cost is formed by combining the common crane pipe with the suspended truss device, and the defects existing in use of an existing common crane pipe are overcome.

To provide a mobile crane capable of further reducing a load acting on a non-telescopic main jib at the time of derricking and increasing an overall support load.SOLUTION: The invention relates to a mobile crane (1) comprising a main jib (2) and a counter-jib (6) which can be moved up and down, but not telescoped, by means of at least one main pulling means (7). The main tensile connector (7) extends between a first connection point (2c) in the region of the head end (7a) of the main jib (2) and a second connection point (6b) in the region of the head end (7b) of the counter-jib (6), wherein a first secondary tensile connector (8) and a second secondary tensile connector (9) are arranged between the main tensile connector (7) and the main jib (2), wherein the first secondary tensile connector (8) has a fixed length. In order to further reduce the loads acting on the main jib, in particular during raising and lowering, and to increase the overall bearing load, it is proposed that the length of at least a part of the second secondary tensioning means (9) is variable.SELECTED DRAWING: Figure 2

The application provides a kind of automobile crane personnel intrusion monitoring method and device, belong to engineering machinery safety monitoring technical field.The method includes: synchronous acquisition contains the RGB image of pedestrian information, disparity map and three-dimensional point cloud data, and time-space registration is carried out and is preprocessed to establish training set;Personnel intrusion monitoring model of automobile crane is constructed, including feature extraction module, boom prediction module, pedestrian position prediction module and time-space registration module;Personnel intrusion monitoring model of automobile crane is trained using training set data;Collect construction site RGB image, disparity map and three-dimensional point cloud data, after time-space registration, input personnel intrusion monitoring model of automobile crane completed training according to the relationship between the position of pedestrian, motion direction and fence, determine intrusion risk.The application improves the pedestrian recognition accuracy in complex environments such as rain, fog and occlusion through the time-space attention feature fusion mechanism, and can provide early warning for potential intrusion behavior.

The invention relates to the technical field of cranes, in particular to a retractable self-moving type cantilever crane which comprises a moving seat, a walking wheel set, a base, a supporting column, a rotating seat, a cantilever and a lifting hoist. The automatic supporting piece comprises four strip-shaped shells fixed to the bottom face of the moving base and distributed in a convolution mode, transmission pieces sliding along the side walls of the strip-shaped shells, supporting mechanisms sliding along inner cavities of the strip-shaped shells and provided with supporting discs at the outer ends and a driving mechanism synchronously driving the four supporting mechanisms to move through the transmission pieces, and the supporting mechanisms can move downwards when sliding outwards. The adjusting seat comprises a U-shaped seat fixed at the top of the rotary seat; the counterweight mechanism comprises a short beam clamped in the U-shaped seat in a sliding mode and a counterweight plate arranged on one side of the short beam, an open groove hinged to the inner end of the cantilever is formed in one side of the short beam, and the swinging telescopic cylinder drives the cantilever to swing up and down; a transmission mechanism for driving the short beam to slide horizontally is arranged on the outer side of the adjusting seat; the movable crane can be conveniently and rapidly fixed and supported after moving, and the phenomenon that the cantilever is damaged during moving is avoided.

The invention relates to a locking device (30) for a telescopic boom (12), in particular of a mobile crane (1), comprising an actuator (32) for generating an actuating force, a driver (36) which is configured to be reversibly coupled to an associated locking bolt (52) held on a boom extension (18) of the telescopic boom (12) during a telescoping movement of the telescopic boom (12) and to be moved between at least one locking position (64) and a release position (78) under the influence of the actuating force to adjust the locking bolt (52), at least one driver bolt (38) which is configured to be moved reversibly between a drive position (80) engaging an inner boom extension (18) and an idle position (82) not engaging a boom extension (18) under the influence of the actuating force, and an actuating cam (40).which is designed for the joint movement of the locking bolt (52) and the drive bolt (38), wherein a plane of movement of the actuating cam (40) is aligned perpendicular to the telescoping direction of the telescoping boom (12) in the intended assembly state.

A system for managing working modes of a mobile crane in a job site, the system comprising:a position sensor for the mobile crane in the job site,a position sensor for the hook of the mobile crane relative to a reference point of said mobile crane,a module for managing the working mode of the mobile crane configured to define the working mode of the mobile crane selected from:the “displacement” mode corresponding to a displacement of the mobile crane in the job site,the “fixed work” mode corresponding to a situation in which the mobile crane is fixed in the job site and the position of its hook is variable,a communication device configured to communicate an indication of the working mode of the mobile crane to at least one other crane of the job site.

The invention relates to a telescopic boom (1) for a working device, in particular a crane or mobile crane, comprising - at least three telescopic sections (3, 4, 5), wherein a first telescopic section (3) is arranged, at least in certain regions, around a second telescopic section (4), and the second telescopic section (4) is arranged, at least in certain regions, around a third telescopic section (5), - at least one drive device (6) for telescopically retracting and / or extending the second telescopic section (4) relative to the first telescopic section (3), and - at least one synchronizing device (7) by means of which the third telescopic section (5) is able to be telescoped, in particular synchronously, relative to the second telescopic section (4), wherein the at least one synchronizing device (7) is arranged substantially completely within the second telescopic section (4).

The present invention relates to a drive device for a mobile crane, which comprises an internal combustion engine for outputting power, an electric machine for outputting power in its motor mode and / or for generating power in its generator mode, and a transfer case for selectively distributing power output to the transfer case to a drive mechanism for moving the mobile crane and a pump arrangement for performing a crane operation, wherein the internal combustion engine interacts with an input shaft of the transfer case, the input shaft interacts with the drive mechanism, the electric machine interacts with an intermediate shaft of the transfer case, and the pump arrangement interacts with an output shaft of the transfer case.The drive device is characterized by a first clutch arranged between the input shaft and the intermediate shaft for coupling or disengaging the input shaft and the intermediate shaft as needed, and a second clutch arranged between the intermediate shaft and the output shaft for coupling or disengaging the intermediate shaft and the output shaft as needed.

The invention relates to a mobile crane (2) with a mounting frame (11), wherein at least one guy arm (9a, 9b) of a guying device (9) of the mobile crane (2) can be temporarily stored on the mounting frame (11), the mounting frame (11) comprises at least one movable sliding frame (11c, 11j), and a single guy arm (9a, 9b) can be temporarily stored on the sliding frame (11c, 11j). In order to create a mobile crane with an optimized temporary storage option for a guying device on the undercarriage, it is proposed that the mounting frame (11) be arranged as an extension of an undercarriage (4) of the mobile crane (2) and completely behind the undercarriage (4) and be attached to the undercarriage (4). The invention also relates to a method for mounting a guying device (9) on a telescopic boom (6) of a mobile crane (2).

The invention discloses a method and a device for performing field operation on an offshore floating platform and a heave compensation device. The method comprises the following steps: deploying a mobile crane and a crane transfer bridge on a transport ship; the transport ship is close to the floating platform, and the crane transfer bridge is erected between the transport ship and the floating platform; the mobile crane moves to the floating platform through the crane transfer bridge in a transport ship motion compensation mode; the mobile crane operates on the floating platform. The offshore floating platform can be suitable for a heavy-weight hoisting scene, existing equipment does not need to be greatly transformed, and offshore floating platform operation with the operation and maintenance cost reduced is achieved.

The embodiment of the utility model provides a universal moving gun carrier. The universal moving gun carrier comprises tank wheels, a base, a vertical frame, a winch, a fixed pulley assembly, a rope and a lifting hook used for lifting materials to be used. The tank wheels are arranged on the lower surface of the base, and the vertical frame and the winch are arranged on the upper surface of the base; the fixed pulley assembly is arranged at the top of the vertical frame, one end of the rope is connected with the winch, and the other end of the rope bypasses the fixed pulley assembly and is connected with the lifting hook. To-be-used materials are hoisted through cooperation of the movable gun carrier and the winch, installation of an annular rail on a roof is avoided, and the technical effect of saving manpower and material resources is achieved; and by arranging the tank wheels, the technical effect that the gun carrier can move is achieved.

The invention relates to a method for operating a cable drum (3), driven by an electric motor (8), of a lifting mechanism or of a lifting winch for a crane or mobile crane, wherein the electrical performance data of the electric motor (8) and / or operating data of the lifting mechanism are acquired during operation, for example by high-frequency evaluation, and, on the basis of the acquired electrical performance data of the electric motor (8) and / or operating data of the lifting mechanism, the behavior and / or the operating state of the cable drum (3) or the cable winch of the lifting mechanism is determined and / or the electric motor (8) is controlled, whereby, for example, an irregular operating state, such as a damaged cable or sliding of the cable without load or with insufficient load ("slack cable"), can be recognized. The invention also relates to a crane comprising: a lifting mechanism, which has a lifting winch by means of which a suspended load can be lifted or lowered, the lifting winch having a cable drum (3) which can be driven by an electric motor (8) in order to carry out a lifting or lowering operation; and a controller (10) which is connected to the electric motor (8) of the lifting mechanism and controls said electric motor according to one of the preceding claims.

The utility model relates to a novel full-automatic single-cavity double-outlet leg for a lorry-mounted crane, which belongs to the technical field of crane machinery and comprises a supporting leg bin, a sliding rod is movably connected inside the supporting leg bin, and a supporting leg is fixedly connected to the bottom of the sliding rod. According to the novel full-automatic single-cavity double-outlet leg for the lorry-mounted crane, when a supporting leg bin is supported on the ground, an adjusting mechanism is started to drive a sliding rod to stretch out and draw back, a supporting leg makes contact with the ground for supporting, then a motor is started to drive a screw to rotate, and the rotary motion of a telescopic rod is changed into linear motion under the condition that a limiting block is arranged; therefore, the telescopic rod can be stretched out without manual operation during adjustment, then the first hydraulic rod is started for auxiliary supporting, and it is guaranteed that the stability is higher when the crane is supported; and the first hydraulic rod is connected with the supporting leg bin, in the installation and connection process, after the clamping columns and the installation plates are clamped, fastening connection is conducted through screws, and it is guaranteed that the stability is further enhanced in the connection process.

This invention relates to the field of building construction technology, specifically a comprehensive unloading construction method for lifting equipment in concrete floor conditions. The method includes the following steps: dividing the construction area into sections and rationally defining the component lifting area; calculating the working conditions of the mobile crane; designing parameters for the mobile crane's concentrated load transfer device and calculating its strength and stability under stress; and generating technical drawings and handover documents. The beneficial effects are: the comprehensive unloading construction method for lifting equipment in concrete floor conditions proposed in this invention innovatively develops a concentrated load dispersion device. Based on stress and deflection deformation calculations, it guides the on-site work by using the idea of ​​transferring and dispersing concentrated loads, avoiding large-area floor slab backfilling. It also combines the rational crane travel route and lifting point diagram with the civil engineering zero-level beam and slab distribution, and rationally and scientifically calculates the floor slab stress.

The disclosure relates to an access device for a working apparatus, more particularly for a mobile crane, comprising a cheek, at least two steps which are laterally and vertically offset with respect to one another and are each supported on the cheek pivotably about a vertical first rotational axis, and a guide bar which connects the steps to one another. The guide bar is pivotably connected, at the end of the step opposite the cheek, to each step via a connection element such that the steps can be jointly moved about their first rotational axes from an access position, in which the steps project laterally from the cheek and in which the access device can be walked on, to a transport position, in which the steps rest against the cheek in a space-saving manner, and vice versa. The disclosure further relates to a working apparatus, more particularly a mobile crane.

The application discloses a mobile crane safety supervision system and relates to the technical field of crane safety supervision.The system comprises a detection module, a vision module and a control module.The control module is configured to acquire image information fed back by the vision module, identify the orientation of a hook nameplate and an anti-unhooking tongue piece based on the image information, obtain hook nameplate information and anti-unhooking tongue piece orientation information, establish corresponding data archives based on the hook nameplate information and store the data archives in a preset database, control the detection module to execute a preset pre-operation inspection process based on the anti-unhooking tongue piece orientation information if pre-operation inspection demand information initiated by an operator is received, identify hook mounting based on the image information, and control the detection module to execute a preset operation monitoring process if it is identified that a load is mounted to the bottom of the hook.The application has the effect of improving the reliability and data traceability of hook safety inspection and reducing the incidence of serious safety accidents.

The invention relates to a mobile crane comprising an undercarriage with a wheeled chassis, a superstructure rotatably mounted on the undercarriage with a boom pivotally mounted about a horizontal luffing axis, and at least one hydraulic luffing cylinder for raising and lowering the boom, which is pivotally mounted on the superstructure about a horizontal pivoting axis and articulated to the boom via a connecting element. According to the invention, the mobile crane includes a holding device arranged on the undercarriage for storing the luffing cylinder in a transport position for road travel, which comprises a receiving element to which the connecting element of the luffing cylinder can be detachably connected, and an adjustment device by means of which the holding device can be moved relative to the undercarriage along a longitudinal direction by extending and retracting the received luffing cylinder.The invention further relates to a method for bringing the mobile crane according to the invention into a transport state.

The invention discloses a mobile crane hybrid power system and a gravitational potential energy closed-loop recovery method, and belongs to the technical field of engineering machinery energy conservation. The system comprises an engine transmission system, an electric drive unit, a transmission clutch, a hydraulic pump clutch, a VCU intelligent controller, a power battery pack and a potential energy recovery system. The electric drive unit is a generator / motor all-in-one machine, can drive the hydraulic pump and can also assist in driving the drive axle. The potential energy recovery system converts gravitational potential energy of a heavy object or a cargo boom in hoisting operation into electric energy for storage through a hydraulic motor and a generator. The VCU integrates intelligent switching logic of eight working modes and a derating recovery algorithm based on a battery SOC, and the functions of driving electric auxiliary driving, kinetic energy recovery, electromagnetic retarding, parking power generation, oil-electricity hybrid and pure electric operation are achieved. By recovering kinetic energy, gravitational potential energy and standby mechanical energy and converting the kinetic energy, gravitational potential energy and standby mechanical energy into electric energy, energy conservation and emission reduction are achieved, meanwhile, braking safety is enhanced, the problem of DPF blockage is effectively solved, and the system is suitable for various mobile cranes.

Mobile crane (10) comprising a mobile undercarriage (12), an uppercarriage (14) rotatably mounted on the undercarriage (12), and a counterweight device (20) which can be coupled to the uppercarriage (14), said counterweight device comprising a counterweight base plate (22) and at least one connecting element (30) extending substantially perpendicularly to the counterweight base plate (22) and connected thereto for lifting the counterweight device (20) and coupling the counterweight device (20) to the uppercarriage (14), characterized in that the counterweight device (20) comprises a carrier plate (40) which can be connected to the at least one connecting element (30) above the counterweight base plate (22), wherein at least one pivoting carrier (42) is pivotably mounted on the carrier plate (40) about a vertical axis (43), on which pivoting carrier at least one first counterweight element (50) can be stacked.

The disclosure relates to a steering system for a mobile work machine, in particular for a mobile crane, which comprises at least one mechanically steerable front axle, at least one passively-steered rear axle, as well as at least one rear axle that is steerable by means of at least one steering cylinder. The front and rear axles are arranged one behind the other along a longitudinal axis of the steering system and comprise wheels, the axes of rotation of which, virtually extended, in the case of cornering, on the side of the curve center, intersect a common steering pole plane positioned perpendicularly on the longitudinal axis. According to the disclosure, at least one passively-steered rear axle is arranged between a front axle and the steering pole plane. The disclosure furthermore relates to a mobile work machine comprising such a steering system.

The invention relates to the technical field of crane weld defect detection, in particular to a mobile crane weld defect detection device which comprises an ultrasonic detector and further comprises a sliding assembly, a first transmission line is arranged in the middle of the top of the ultrasonic detector, and a protective shell is connected to the side, away from the ultrasonic detector, of the first transmission line. The device is provided with two groups of contact type probes, welding seams in two intersecting directions can be detected at the same time, the tedious process of respective positioning and independent scanning when orthogonal or intersecting welding seams are detected is avoided, the time required for detection is shortened, and the overall detection working efficiency is remarkably improved; the angle of the contact type probe can be automatically adjusted according to the actual inclination angle of the weld surface, it is ensured that the probe is always perpendicular to the weld surface, detection signal distortion or attenuation caused by inclination of the probe is eliminated, and the accuracy and reliability of a detection result are greatly improved.