56 results about "Mobile crane" patented technology

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.

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 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 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 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 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 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.

The invention relates to a locking device (30) for a reversibly extendable support bracket (18) of a motor vehicle (1), in particular a mobile crane, comprising a brake rail (32) which is fixed on the support bracket (18) or a support box (20) of the motor vehicle (1) in the intended assembly state, a brake engagement element (36) which is arranged on the support box (20) of the motor vehicle (1) or on the support bracket (18) in the intended assembly state and is reversibly adjustable relative to the brake rail (32), an adjustment drive which is coupled to the brake engagement element (36) by means of force transmission in the intended assembly state and is configured to apply a braking force to the brake engagement element (36), and a controller (44) which is configured to actuate the adjustment drive to apply or reduce the braking force when the support bracket (18) is adjusted relative to the support box.

The present disclosure relates to a crane, for example a mobile crane, having a main boom and a luffing jib pivotably articulated to the main boom, a retaining stay extending between the main boom and the luffing jib, the retaining stay having a lifting element whose length can be varied and being thereby variable in its length.

The application discloses a port mobile crane boom head structure and pulley arrangement, which comprises high-strength seamless steel pipes, pulley support ear plates, first pulleys, second pulleys and pulley shafts; the truss boom body is horizontally arranged in a transverse direction, and high-strength seamless steel pipes are arranged in a horizontal and longitudinal direction at the head of the truss boom body; two pulley support ear plates are arranged on the left and right sides of the truss boom body respectively on the front side surface of the high-strength seamless steel pipes, and the two pulley support ear plates on the same side are symmetrically arranged at a specified width; a scissor hand-shaped opening is formed at the end of each pulley support, and a pulley shaft is horizontally and longitudinally connected in the opening of the two pulley support ear plates on the same side; a plurality of first pulleys are sequentially and spacedly connected on each pulley shaft between the two pulley support ear plates, and a second pulley is connected on the outer side of the corresponding pulley support ear plate on the side close to the truss boom body. The application reduces the weight of the boom head and the whole.

The application belongs to the technical field of engineering mechanical equipment, and particularly relates to a telescopic arm device and a lorry-mounted crane. The telescopic arm device comprises a first oil cylinder, a second oil cylinder, a third oil cylinder, a cable assembly, and a first basic arm section, a second arm section, a third arm section, a fourth arm section, a fifth arm section, a sixth arm section and a seventh arm section which are nested with each other. In the process of extension of the telescopic arm device, the first oil cylinder is extended to drive the second arm section to extend, the second oil cylinder is extended to drive the third arm section to extend, the third oil cylinder is extended to drive the fourth arm section to extend, and the cable assembly drives the fifth arm section, the sixth arm section and the seventh arm section to synchronously extend. In the application, the connection between the oil cylinders is strengthened by hinging the piston rod of the second oil cylinder with the cylinder body of the first oil cylinder and hinging the piston rod of the third oil cylinder with the cylinder body of the second oil cylinder, so that the rigidity of the whole oil cylinder is improved, and the stability of the telescopic arm device in the telescoping process is improved.

This invention relates to the field of construction hoisting equipment technology, specifically proposing a mobile crane for installing ultra-large building blocks; it includes a body frame, a power system, a guide assembly, two side supports, and an extension rail; a central rail is horizontally fixed at the top of the body frame; the power system is mounted on the body frame; the guide assembly is slidably mounted on the central rail; the two side supports are symmetrically mounted on both sides of the body frame; each side support includes a telescopic rod hinged to the body frame and a support platform hinged to the telescopic end of the telescopic rod; the extension rail can be spliced ​​individually or in multiples and connected between the support platform and the central rail; the crane provided by this invention can flexibly switch between single-point hoisting mode, multi-point hoisting mode, or auxiliary transfer mode according to the construction status and the corresponding hoisting material, and has advantages such as simple structure, easy assembly, and easy switching, facilitating efficient and flexible construction operations, and reducing the intensity of manual labor.

The invention relates to the technical field of engineering machinery, and discloses an accelerator linkage device and a lorry-mounted crane, the accelerator linkage device comprises a pull rope and a steering trigger assembly, and the pull rope is connected with an accelerator control line; the multiple sets of steering trigger assemblies are independently arranged in the first direction, the pull rope surrounds the steering trigger assemblies in the second direction, and all the steering trigger assemblies can drive the accelerator control line to move in the forward direction or the reverse direction through the pull rope. The multiple sets of steering trigger assemblies are independently arranged in the first direction, and each assembly can be independently triggered. The pull rope is arranged on the periphery of the steering triggering assembly in a surrounding mode in the second direction, and a surrounding or penetrating linkage structure is formed. The pull rope is arranged around the steering trigger assembly, so that the steering trigger assembly can control the accelerator through forward and reverse rotation, and the control fineness is enhanced; the flexibility of the pull rope enables the multiple steering trigger assemblies to be controlled in an overlapped mode, the steering trigger assemblies are allowed to act on an accelerator from different positions or through multiple input sources at the same time or in sequence, and accumulation or cooperation of control force is achieved.

An emergency-operation valve block includes: a drive port for hydraulically connecting the valve block to an emergency drive of a mobile crane, at least two drive mechanism ports for hydraulically connecting the valve block to one drive mechanism of the mobile crane each, at least two closing valves which are assigned to one of the drive mechanism ports each and designed to selectively open or close a hydraulic connection between the drive port and the drive mechanism port respectively assigned to it, and an actuation valve which is designed to selectively reverse the hydraulic connection between a pressure side and return side of the drive port and corresponding sides of the drive mechanism ports. A mobile crane may include such an emergency-operation valve block.

To provide a remote operation terminal of a crane for automatically rotating video data from a suspended load camera and displaying it on the remote operation terminal in consideration of the direction of the remote operation terminal and the direction of the suspended load camera attached to a mobile crane.SOLUTION: A remote operation terminal 10 is composed of an azimuth acquisition part 14 for acquiring a terminal azimuth to which the remote operation terminal 10 is directed, a display part 18 for displaying a video acquired by a video acquisition part 16, a video rotation part 20 for rotating the video and providing it to the display part 18, and a control part 22 for controlling each part of the remote operation terminal 10. The controller 22 sends, to the image rotator 20, an image rotation angle signal S1 generated based on the camera orientation of the suspended load camera 124 acquired from the crane control device 107 and the device orientation acquired from the orientation acquirer 14, and the image rotator 20 provides the display 18 with an image rotated based on the image rotation angle signal S1.SELECTED DRAWING: Figure 4

The utility model discloses a long-distance material lifting system of a heading machine, which solves the problem that the efficiency of transferring materials of the heading machine from the tail part of equipment to a host area is low under the working conditions of narrow space, long distance, small turning and large gradient in the prior art. The long-distance material hoisting system of the heading machine comprises a crane track arranged on a trolley, the crane track is connected to the top of the trolley through a flexible hoisting piece, and a movable crane is arranged on the crane track; the crane track is formed by hinging a plurality of short-distance track sections end to end. Compared with the prior art, the crane track formed by hinging a plurality of short-distance track sections end to end is matched with the flexible hanging piece to be connected to the top of the trolley, so that the two short-distance track sections can relatively swing and pitch within a certain range to adapt to the working conditions of small turning and longitudinal curve.

Crane, in particular mobile crane, with a lattice boom (10), a derrick boom (40) and a boom bracing (20) extending from the derrick boom (40) to the boom tip (11), wherein at least one bracing block (30) is provided, which is attached to the lattice boom (10) between the derrick boom (40) and the boom tip (11) and is connected to the boom bracing (20), wherein the design of the boom bracing block (30) is suitable for transmitting compressive and / or shear forces in order to apply a compressive and / or shear force to the boom (10) via the bracing (20) during crane operation, characterized in that the at least one bracing block (30) comprises at least two interconnected side elements (30a, 30b), and wherein the at least one bracing block (30) is designed in a three-dimensional lattice structure.

The present invention relates to lifting gear, more particularly a crane, such as a rotary tower crane and / or mobile crane, having a supporting structure, a determination device for determining a load state and / or an operating state of the supporting structure, and a control unit for controlling actuators of the lifting gear depending on the determined load state and / or operating state, wherein the actuators are allocated to the supporting structure for the active bracing and / or deformation of the supporting structure in a variable manner during lifting gear operation, and the control unit is configured to temporarily and variably brace and / or deform the supporting structure by means of the actuators depending on the detected load state and / or operating state in order to relieve the load on supporting structure parts which are subject to high load.

The invention relates to an access ladder for a work machine, in particular for a mobile crane, comprising a bracket on which a ladder section is slidably mounted along an ascent direction of the access ladder, wherein the ladder section is slidable relative to the bracket between a lower ladder position and an upper ladder position. According to the invention, the access ladder includes a speed limiting device, which is in particular arranged on the bracket and which interacts with the ladder section in such a way that, when moving from the upper to the lower ladder position, the ladder section descends in a controlled manner at a reduced speed compared to free fall. The invention further relates to a work machine, in particular a mobile crane, with an access ladder according to the invention, which allows personnel to access the ladder from the ground in the lower ladder position.

The invention belongs to the technical field of curtain wall installing and fixing devices, and discloses a curtain wall installing and fixing device which comprises a movable crane and a goods shelf trolley, a connecting piece is installed on the side face of the goods shelf trolley, a straight plate is installed on the connecting piece in a hinged mode, movable wheels are installed at the bottom of the straight plate, and a sliding rail is installed at the top of the straight plate. A movable seat is slidably mounted on the sliding rail, a displacement table is mounted on the movable seat, a movable strip is slidably mounted on the displacement table, a hinge is mounted on the movable strip, a clamping block is mounted on the other face of the hinge, a bearing plate is integrally formed on the clamping block, toggle clamps are mounted at the two ends of the clamping block, and through notches are formed in the positions, at the pressing ends of the toggle clamps, of the clamping block. The curtain wall is clamped through the clamping blocks, related workers can finely adjust the curtain wall by moving the clamping blocks, labor is saved, and the position of the curtain wall can be adjusted more accurately; and an existing goods shelf trolley can be modified and spliced for use, the manufacturing cost is low, use is easy and convenient, and the installation efficiency is improved.

The utility model discloses a slewing bearing with three rows of rollers for a mobile crane. The slewing bearing comprises an inner ring, an outer ring, a first roller, a second roller, a third roller, a first isolation frame and a second isolation frame, according to the utility model, the pin rollers arranged in the accommodating cavities can form corresponding pin roller rows, and the arrangement of the plurality of pin roller rows can effectively ensure the loading capacity of the utility model, so that the utility model can effectively adapt to the use of a mobile crane. Meanwhile, due to the fact that the sizes of the pin rollers in all the pin roller rows are different, the situation of stress concentration can be reduced in the using process, local overload is avoided, and the fatigue life is prolonged. And due to the formation of the accommodating cavities, the arrangement of the rollers can be facilitated, and the arrangement reliability of the rollers is improved.

The invention discloses a mobile crane lifting appliance pose measurement method and device based on multiple GNSS (Global Navigation Satellite System). The method comprises the following steps: acquiring first position information of the tail end of a cantilever of a crane in a geographic coordinate system through a first GNSS receiver; acquiring second position information of the lifting appliance in the geographic coordinate system through a second GNSS receiver; acquiring first angle information of the crane through an angle sensor, wherein the first angle information comprises a rotation angle and an amplitude variation angle of the crane; storing pre-calibrated external parameter calibration parameters, wherein the external parameter calibration parameters comprise a first calibration parameter, a second calibration parameter, a third calibration parameter and a fourth calibration parameter; and calculating three-dimensional pose information and second angle information of the lifting appliance relative to the tail end of the cantilever through rotation change of the coordinate system based on the first position information, the second position information, the first angle information and the external parameter calibration parameters. According to the mobile crane lifting appliance pose measurement method and device based on the multiple GNSS, the deviation is eliminated through the external parameter calibration parameters, and the measurement precision is ensured.

To provide a lift-up device capable of shortening a construction period by reducing the number of lifting times of a stage for conveying an element member upward.SOLUTION: A lift-up device for conveying an element member upward when constructing a wind power generator includes a guide tower 21, and a stage 30 on which a mobile crane 50 including a slewing crane is placed and which is supported so as to be lifted and lowered with respect to the guide tower 21, and the stage 30 is cantilevered by the guide tower 21. The guide tower 21 is coupled to the tower body 11 via a stay ring 25. The lowermost position of the stage 30 is a height at which the mobile crane 50 on the ground can move.SELECTED DRAWING: Figure 4