90 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.

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 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 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.

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 cooling device comprises a spraying box, an opening is formed in the left side of the spraying box, a supporting plate is fixedly connected in the opening, a filter screen box is arranged in the spraying box, a mounting plate is fixedly connected in the side, close to the opening, of the filter screen box, a rotating rod is fixedly connected to the mounting plate, one end of the rotating rod penetrates through the mounting plate, and the other end of the rotating rod penetrates through the spraying box. The other end of the rotating rod penetrates through the spraying box and is fixedly connected with a driven wheel, the right side of the spraying box is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving wheel, the driving wheel is in meshed connection with the driven wheel, a spraying plate is fixedly connected into the spraying box located on the upper side of the filter screen box, and a plurality of spraying heads are arranged on the lower side of the spraying plate; the other end of the conveying pipe is fixedly connected with a water tank, and the water tank is located at the bottom in the spraying box. Through the structure, the problem that the uniformity of the steel pipes is inconsistent due to the fact that the upper half parts of the steel pipes are rapidly cooled and the lower half parts are slowly cooled in the spraying process is solved.

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

A mobile crane having a main jib that can be raised and lowered but not telescoped by means of at least one main tensile connector, and a counter jib, where the main tensile connector extends between a first connection point in the region of a head of the main jib and a second connection point in the region of a head of the counter jib, a first secondary tensile connector and a second secondary tensile connector are arranged between the main tensile connector and the main jib, and the first secondary tensile connector has a fixed length. In order to further reduce the loads acting upon the main jib, such as during raising and lowering, and to increase its overall bearing load, at least portions of the second secondary tensile connector can be varied in length.

To provide a boom work range determination system for a mobile crane that is applicable even to an existing mobile crane and is able to inform a worker of the suitability of a work range of a boom.SOLUTION: A boom work range determination system for a mobile crane includes: first measurement means 12; second measurement means 14; third measurement means 16; and a mobile terminal 18 including storage means 20 that stores at least a rated load diagram of a work vehicle 50, input means 22 that selects a vehicle type of the work vehicle 50 and inputs a suspension load, and calculation means that calculates a work radius of a telescopic boom 54 based on measurement values measured by the second measurement means 14 and the third measurement means 16, compares an allowable work radius with the work radius, the allowable work radius being obtained by applying the suspension load input via the input means, and an amount of overhang of an outrigger measured via the first measurement means, to the rated load diagram, and determines whether the work radius is equal to or less than the allowable work radius.SELECTED DRAWING: Figure 1

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.

The invention relates to an auxiliary tip for detachable mounting on a boom of a work machine, in particular a mobile crane. The auxiliary tip comprises first connecting elements for establishing a first connection with a first boom part, and second connecting elements for establishing a second connection with the first boom part. In order to be able to connect the auxiliary tip to a second boom part having a system dimension different from the first boom part, the auxiliary tip according to the invention comprises third connecting elements with which a second connection to a second boom part can be established instead of the second connecting elements. While the auxiliary tip is connected to the first boom part via the first and second connecting elements, the auxiliary tip can be releasably connected to a second boom part via the third connecting elements.