30results about "Cranes" patented technology

An industrial robot including a first arm which has a first arm portion, and a second arm portion supported by the first arm portion. The industrial robot also includes a second arm which has a third arm portion and a fourth arm portion supported by the third arm portion. The first arm and the second arm can be expanded/retracted independently. A turning center of the first arm portion and a turning center of the third arm portion are placed coaxially. The first arm and the second arm are constructed so as to be almost line-symmetric with respect to an imaginary line under the condition that the first arm and the second arm are retracted. The first arm portion, the third arm portion, the second arm portion, and the fourth arm portion are placed in this order in a vertical direction.

The invention provides a balancing device, which comprises a movable counterweight device, a drive mechanism, an induction device and a controller, wherein the movable counterweight device is arranged on a vehicle body, and is provided with a movable counterweight block; the drive mechanism is in drive connection with the movable counterweight block; the induction device is used for measuring the tilting angle of the vehicle body; and the controller is in signal connection with the induction device, judges the tilting direction of the vehicle body according to the tilting angle and controls the drive mechanism to act to drive the movable counterweight block to move towards a direction opposite to the tilting direction of the crane. The invention also discloses the crane with the balancing device. The balancing device provided by the invention can effectively ensure the stability of the crane in a running process and reduce the occurrence of overturning accidents.

The invention discloses a hydraulic system of a single-cylinder pin type telescopic arm. The hydraulic system comprises an arm pin cylinder, a cylinder pin cylinder and a control oil path, wherein a system pressure oil path can provide oil for the arm pin cylinder or the cylinder pin cylinder through the control oil path; an oil supply branch of the control oil path comprises an energy accumulator and an unloading valve; the unloading valve is positioned at an upstream position of the energy accumulator, has two working stations and is configured to communicate with the oil supply branch when being positioned at the first working station and communicate with the system pressure oil path and a system oil return path when being positioned at the second working station. When the control oil path provides oil for the arm pin cylinder or the cylinder pin cylinder to unlock the cylinder and keep the cylinder in an unlocked state, the unloading valve is positioned at the second working station to communicate with the system pressure oil path and the system oil return path; the pressure of the control oil path is maintained by the energy accumulator, so that the arm pin or the cylinder pin is kept in the unlocked state; the hydraulic system guarantees that no overflow loss exists when the arm pin or the cylinder pin is kept in the unlocked state. The invention also provides a control method of the single-cylinder pin type telescopic arm. In addition, the invention also discloses a crane with the hydraulic system.

The invention relates to a telescopic control valve, a multi-stage telescopic hydraulic system and a hoist jib telescopic hydraulic control system. The telescopic control valve comprises a valve body, wherein a first oil port and at least two second oil ports are formed in the valve body, oil passing ways are connected between the first oil port and the at least two second oil ports, on-off valves are arranged on all the oil passing ways, a control oil port of each on-off valve is connected with a control oil source by the aid of a reversing valve, selection of all the on-off valves can be realized through reversing by the reversing valves, and then the oil passing ways are connected or disconnected. The telescopic control valve is provided with the first oil port, the second oil ports, the reversing valves and the on-off valves, and the different oil passing ways can be connected or disconnected through reversing by the reversing valves. For a multi-stage telescopic hydraulic system, a cylinder rod corresponding to one selected oil way can be controlled to extend or retract, and other oil ways are cut off, so that action of the cylinder rod cannot be affected, and independent control on each stage of cylinder barrel is realized.

The invention discloses a safety monitoring system of a tower crane and the tower crane with the safety monitoring system. The safety monitoring system of the tower crane comprises a GPS device used for positioning the real-time position of a trolley or a lifting hook of the tower crane and further comprises a processing device which is in communication connection with the GPS device. The processing device is used for receiving corresponding parameters detected by the GPS device and generating safety parameters used for safety monitoring of the tower crane. Through the GPS device and the processing device, the various parameters of the tower crane can be detected in real time. The safety monitoring system of the tower crane is convenient to install and debug and high in control precision.

The invention discloses a seaborne cylindrical floating body recycling device, relating to the technical field of ocean and shipbuilding. The seaborne cylindrical floating body recycling device comprises a ship crane, wherein a lifting winch and a high-pressure gas storage tank are arranged on a lifting arm of the ship crane; a hose is arranged at a gas outlet of the high-pressure gas storage tank; the lifting winch is connected with a floating body recycling cover through a steel wire rope; one end of the hose is connected to the floating body recycling cover. Compared with the prior art, the seaborne cylindrical floating body recycling device has the advantages that the structural design is reasonable, the operation is easy, and cylindrical floating bodies vertically floating in the sea can be safely and efficiently recycled and cannot be damaged, so that the recycling rate is high.

The suspended gun rest includes a pivoting arm adjustably mounted to a rigid support by a mount. The mount comprises an L-shaped bracket with a mounting hole and three holes for adjustment screws. A cradle is provided which includes two strings, a string routing system, a locking mechanism and a spindle. A hook is connected to one end of the pivoting arm. The two strings are connected to the spindle and routed through the cradle by the routing system and attached to the hook on the pivoting arm.

The invention discloses an integral translation device and method for an internal-climbing tower crane which can implement the integral translation of the internal-climbing tower crane. The body of the tower crane is fixedly connected with an internal-climbing frame and an attached frame. The internal-climbing frame and the attached frame are supported on a bottom beam and an attached beam respectively. The integral translation device for the internal-climbing tower crane consists of a support structure, a restriction push device and a push control system, wherein the restriction push device is arranged on the support structure; the restriction push device comprises a bottom push device and an upper push device; and the support structure correspondingly comprises a bottom support and a middle support. The bottom push device and the upper push device are used to perform a two-layer bidirectional clamping restriction on the tower crane, and a side limit is arranged to prevent the tower crane from inclining, twisting, laterally swaying and slipping without restriction during translation, so that the balance and stability for the translation of the tower crane are kept. The integral translation device for the internal-climbing tower crane has the advantages of rapid translation, safety, low cost and high efficiency, which is particularly applied to the overhead integral synchronous translation of the internal-climbing tower crane.

An optical sensor for detecting the housing state such as the thickness of a substrate in the present invention is provided at supporting arms. The supporting arms are attached to a supporting shaft. The supporting arms are in a vertical state in a state before detection of the substrate, but when detecting, the supporting shaft rotates to bring the supporting arms into a horizontal state so that the optical sensor enters a substrate housing body and is set at a predetermined detection position. Accordingly, a space for moving the optical sensor in the horizontal direction becomes unnecessary to reduce the space required for the detecting operation and the like, making it possible to reduce the size of a substrate processing apparatus in which the detecting apparatus is incorporated.

The invention discloses a crane force feedback system, and aims at solving the technical problems in the prior art that the operability of a crane is poor, and the craning working efficiency and safety are relatively low. The system comprises a weighing sensor, a force feedback controller and an operation rod, wherein the weighing sensor is connected with a hoisting mechanism of the crane; the force feedback controller is connected with the weighing sensor; the operation rod is connected with the force feedback controller; the weighing sensor is used for obtaining a weight signal of cargoes needing to be moved by the hoisting mechanism, and converting the weight signal into a first signal; and the force feedback controller is used for receiving the first signal, converting the first signal into a feedback acting force capable of being identified by an operator of the crane based on a first conversion manner, and driving the operation rod through the feedback acting force, so that the operator can sense the weight of the cargoes when holding the operation rod.

The embodiment of the invention provides a supporting control method, device and system for engineering machinery and a medium, and belongs to the field of the engineering machinery. The method comprises the steps that a target position, input by a user, of loading operation of the engineering machinery is obtained; according to the target position, the loading posture information under the optimal loading posture is calculated, specifically, the optimal loading posture refers to the posture enabling the gravity center of the whole engineering machinery to be closest to the inner side, and theinner side refers to the side with the small projection distance from the loading gravity center to the rotation center of the engineering machinery; the gravity center of a whole vehicle corresponding to the optimal loading posture is calculated according to the loading posture information; and according to the gravity center of the whole vehicle, the recommended supporting opening degree for supporting legs of the engineering machinery is calculated, specifically, the recommended supporting opening degree enables the distance between the side line formed by the supporting fulcrums of the corresponding supporting legs and the gravity center of the whole vehicle to be smaller than a preset value and located outside the gravity center of the whole vehicle. According to the supporting control method, device and system for the engineering machinery and the medium, the recommended supporting opening degree required by the loading operation can be obtained in advance, so that guidance suggestions are provided for support unfolding.

The invention discloses an automatic control method and device of a crane and the crane. The crane comprises a front arm, a main arm, a pull rod, a grab bucket and a portal frame. The automatic control method comprises the steps that a reference movement track of the grab bucket is obtained; according to the reference movement track, attitude information of the front arm, the main arm and the pull rod is determined; according to the posture information of the front arm, the main arm and the pull rod, the front arm, the main arm and the pull rod are controlled to act, so that the grab bucket is moved to an initial point position; position information of a to-be-transported material is obtained; and according to the position information of the to-be-transported material and the initial point position, the postures of the front arm, the main arm and the pull rod are adjusted, so that the grab bucket is moved to the position of the to-be-transported material. According to the automatic control method and device of the crane and the crane, automatic operation can be carried out according to the recorded movement track, manual operation is reduced, and the operation efficiency is improved.

The invention relates to a slewing mechanism and particularly relates to a slewing mechanism for the fields of tower cranes. The invention provides the slewing mechanism which is simple in structure and low in cost, and is capable of realizing stepless speed adjustment, stably starting and braking and reducing impacts to a crane boom and a tower body. The slewing mechanism comprises an alternative current (AC) motor, a slewing speed reducer, an electromagnetic eddy clutch, an electromagnetic eddy brake, a middle electric pivot, an electric control system and an operation platform. During starting, the middle electric pivot is smoothly started by virtue of the comprehensive actions of the electromagnetic eddy clutch and the electromagnetic eddy brake; the inertial impact during starting is avoided; during braking of the slewing mechanism, the brake time of the slewing mechanism is prolonged by virtue of the electromagnetic eddy clutch and the electromagnetic eddy brake; the stable transition of the slewing mechanism from a motion state to a motion state is realized and the impacts to the crane boom and the tower body during braking are reduced.

The invention provides an overturning detection device for an overhead working truck. The overturning detection device at least comprises a detection switch and one or more region detecting plates, wherein the detection switch is fixed on a rotating part of a slewing mechanism of the overhead working truck; the region detecting plates are fixed on a fixed part of the slewing mechanism of the overhead working truck; the contact end of the detection switch cooperates with the region detecting plates; when the detection switch is in contact with the region detecting plates, the region detection switch is switched on, so that the detection switch rotates to the detection region; and when the region detection switch is separated from the region detecting plates, the region detection switch is switched off, so that the detection switch rotates to the non-detection region, and then the detection of the slewing region is realized. The overturning detection device disclosed by the invention hasthe beneficial effects that according to different region detecting requirements, various region detecting requirements can be realized through mounting the region detecting plates of different angles and different numbers; the mounting is simple, stable and reliable; the cost is low; and repair is convenient.

The invention belongs to a lifting machine, and particularly relates to a multifunctional sunlight room installation lifting machine. The multifunctional sunlight room installation lifting machine comprises a bottom frame, a lifting motor and a first output steel rope; the bottom frame comprises four square pipes which are connected end to end, lengthened supporting rods sleeve the end of the square pipe, universal wheels are arranged at the bottoms of the square pipes and the lengthened supporting rods, fastening screws are arranged at the ends of the square pipes, a stand column installing platform is arranged between the two opposite square pipes, the stand columns are arranged on the stand column installing platform, telescopic rods are arranged on the stand columns, fixed pulleys arefixedly arranged on the telescopic rods, the lifting motor is arranged on the bottom frame, and the first output steel rope of the lifting motor is arranged around the fixed pulley. According to the lifting machine, the weight is large, the stability is good, the application range is wide, and the assembly is convenient and flexible.

The invention discloses a feeding device for building construction. The feeding device comprises a supporting mechanism, a driving mechanism, a stabilizing mechanism and a stretching mechanism, wherein the driving mechanism is mounted on the left side of the supporting mechanism, the stabilizing mechanism is mounted on the right side of the driving mechanism, the stretching mechanism is mounted atthe top of the supporting mechanism, the supporting mechanism comprises a bottom plate, and a vertical plate is mounted on the left side of the top of the bottom plate. Through cooperation of a rotating motor, a rotating shaft, a threaded rod, a threaded groove, a fixing plate and a limiting plate, the effect of conveniently adjusting the feeding position is achieved, the feeding position can bechanged according to different positions of construction staff, and convenience of the feeding device is greatly improved; and through cooperation of a concave plate, rollers, a mounting plate, buffersprings, an extruding plate and steel balls, the effect of stabilizing fixing ropes in a limiting mode is achieved, the fixing ropes are prevented from being separated from the rollers, feeding stability is greatly improved, and great convenience is brought to users.

The invention belongs to the technical field of constructional engineering, and discloses an internal climbing type tower crane supporting device and a climbing method.The internal climbing type tower crane supporting device comprises supports, a supporting frame, a climbing guide rail, a jacking cross beam and a first driving part, and the supports are arranged in at least three layers in the vertical direction and fixed to a building main body structure; the number of the supporting frames is at least two, the supporting frames are fixed to the supports on the different layers respectively, and the tower crane body is fixed to the supporting frames. The climbing guide rails are arranged corresponding to the four supports on each layer and fixed to the supports, a plurality of bearing holes are formed in the climbing guide rails at intervals, and the two ends of the supporting frame and the two ends of the jacking cross beam are connected to the bearing holes respectively. The first driving piece is configured to drive relative movement between the supporting frame and the jacking cross beam. The internal climbing type tower crane climbs under the condition that the climbing supporting beam is free of overturning, the balance of the tower crane does not need to be adjusted during climbing, the climbing method is simple and easy to implement, the safety risk in the climbing process of the tower crane is reduced, and the climbing period of the tower crane is shortened.

The invention relates to a jib structure, a jib system and a crane. The jib structure comprises a jib body which comprises a plurality of side surfaces and two end surfaces, wherein all the side surfaces are welded by a plurality of cross bars, and a roller device is arranged on the cross bar in one side surface. According to the jib structure, the roller device is arranged on the jib body, the jib structure with the small cross section is nested into the jib structure with the large cross section by the roller device, the jib sections with the different cross sections can be nested and assembled, and the quantity of vehicles for transporting the jib structure can be reduced.

The invention discloses an engineering machinery transfer device with the mechanical lifting function. The engineering machinery transfer device with the mechanical lifting function comprises a powermechanism, a lifting mechanism, a transfer mechanism and a mounting table; the bottom and the left side of the mounting table are fixedly connected with the power mechanism; the left side of the top of the mounting table is fixedly connected with the bottom of the transfer mechanism; and the right side of the top of the mounting table is fixedly connected with the bottom of the lifting mechanism.According to the engineering machinery transfer device with the mechanical lifting function, through the arranged lifting mechanism, a mechanical part needing to be carried is started through a firstmotor, a magnet descends to attract the mechanical part under the cooperation of a take-up wheel, a wire leading wheel and a steel wire, the magnet ascends, and a fixed column and a rotary column arerotated through a rotary rod under the cooperation of a bearing, a transfer box cover is opened, when the magnet rotates to the top of a box body through the rotary rod, the magnet descends to place the mechanical part on a containing plate in a transfer box, and the purpose of facilitating lifting in the transfer process is effectively achieved.

The invention discloses a low-cost rotation control system for a tower crane. The low-cost rotation control system for the tower crane comprises a control center, wherein a frequency converter, a power loss detection module and a linkage table are electrically connected onto the control center; a first signal line, a second signal line and an interlocking device are connected between the linkage table and the control center; a slewing mechanism is electrically connected onto the frequency converter; and a motor rotating speed sensor is electrically connected onto the slewing mechanism. According to the control method constructed by the control system, the first signal line or the second signal line sends a potential signal or a gear signal sent by the linkage table to the control center, the control center controls the frequency converter to start according to the received potential signal or gear signal, and the frequency converter is used for changing the output frequency, voltage and speed of the slewing mechanism. According to the low-cost rotation control system for the tower crane, and the control method provided by the invention, the production cost can be reduced, and the device also has the advantages of high use stability, high use safety, long service life, wide application range, simple structure and high reliability.

The invention discloses an automatic turnover device for crane supporting legs, and belongs to the field of supporting leg turnover. The automatic turnover device for the crane supporting leg comprises an installation fixing plate block and a transverse supporting leg which is fixedly installed on the front surface of the fixing plate block. The vertical supporting leg hinged support is fixedly installed on the side face, away from the installation fixing plate, of the transverse supporting leg; the vertical hydraulic cylinders are fixedly arranged on the surfaces of the transverse supporting legs, and telescopic vertical supporting legs are installed at the lower ends of the vertical hydraulic cylinders; wherein the vertical hydraulic cylinder and the vertical supporting leg hinged support are provided with linkage connecting rod mechanisms which are matched with each other, the lower end of each linkage connecting rod mechanism is fixedly connected with a sliding push rod, a guide mechanism is fixedly installed on the surface of the vertical hydraulic cylinder, and a limiting sliding block is fixedly installed on the outer wall, located below the guide mechanism, of the vertical hydraulic cylinder; according to the invention, rapid mechanical recovery can be realized, so that the space can be effectively saved, packaging and transportation are facilitated, and conversely, during unfolding, the device can rapidly extend out and can be put into operation in time.

A mobile lifting apparatus, comprising at least one truck, provided with a first drive device comprising at least one internal combustion engine connected by power transmission means to one or more user devices of the truck hydraulically actuated, and at least one boom provided with a second drive device.

A manufacturing device includes a first hinge defining a first axis of rotation and having an arm connected thereto. A parallel link mechanism includes a second hinge connected to the arm and first and second links pivotably connecting the second hinge to an attachment such that the attachment is vertically movable relative to the second hinge. A nut runner is configured to rotatably drive a fastening tool about a third axis of rotation and is connected to the attachment. A first motor is provided on the first hinge and is configured to horizontally rotate the arm about the first axis of rotation. A second motor is provided on the second hinge and is configured to horizontally rotate the parallel link mechanism about a second axis of rotation that is parallel to the first and third axes of rotation.

The invention discloses a communication system control method and device of a tower crane cluster, tower crane equipment and a medium. According to the technical scheme, on one hand, the execution end can receive the control instructions through the multiple channels, and the corresponding control actions can be executed only when it is determined that the multiple control instructions are consistent. On the other hand, transmission of control data, image data and positioning data of the tower crane can be conducted through the wireless broadband ad hoc network module and the 5G module which are high in data transmission rate. And the wireless narrowband ad hoc network module with low data transmission rate is used for transmitting control data of the tower crane. Therefore, the effective utilization rate of the communication system is ensured, and the communication system can realize a safe and reliable control function in multiple environments. Therefore, the problem that the tower crane cannot be intelligently managed due to the absence of a communication system for remotely monitoring and controlling the tower crane in the prior art is solved.

The invention discloses a luffing crane boom. The luffing crane boom comprises a hydraulic cylinder and a boom, wherein a telescopic hoist boom is fixedly mounted on the upper surface of the hydrauliccylinder; a mast is arranged at the other end of the telescopic hoist boom; and a starting motor is also fixedly mounted on the front side of the hydraulic cylinder. The luffing crane boom is characterized in that a propeller strut is also mounted on the bottom surface of the hydraulic cylinder; an orientation sensor is mounted on the upper surface of the propeller strut; a counterweight device is mounted at the lower end of the orientation sensor; besides, the propeller strut is fixedly mounted on a rotary table; a driver cab is arranged at the other end of the rotary table; a control systemis arranged inside the driver cab; a lifting hook is fixedly connected to the boom through a rotating block mounted on the inner side of the boom; one end of the lifting hook penetrates through a gear and is fixedly connected with an L-shaped connecting rod arranged below the gear; a combined spring is also mounted on the inner side face of the boom; a mechanical gripper is fixedly mounted at theother end of the combined spring; and the boom is in sliding connection with the mast through a pull plate.

The invention discloses a wheeled crane operation vibration-proof device, a system, a method and a wheeled crane. When the wheeled crane is used for operation, supporting legs arranged on the two sides of the wheeled crane are stretched out and lifted so as to set up the wheeled crane. The wheeled crane operation vibration-proof device comprises a receiving device used for receiving data of vertical distance between a vehicle frame and an axle of the wheeled crane; a controlling device used for operation of at least one of the following steps: lifting operation of the supporting legs is controlled based on the vertical distance between the vehicle frame and the axle so as to control contact degree of tyres with the ground; or an indicating device is controlled to send indication signals based on the vertical distance between the vehicle frame and the axle. According to the wheeled crane operation vibration-proof device, contact degree of tyres with the ground is controlled based on the vertical distance between the vehicle frame and the axle, vibration damping effects can be improved without using of specialized vibration damping equipment, and vibration of the integral body of the vehicle frame parallel to the ground is reduced preferably.

The invention discloses a machine for hoisting and rotating soil balls. The machine is constituted by a soil ball hoisting and rotating device, a rotary table device, a creeper truck and a gradient sensor. The creeper truck is provided with a chassis and a first flange plate, and the soil ball hoisting and rotating device is constituted by a first telescopic assembly, a second telescopic assembly,a lifting assembly, a variable-amplitude hydraulic oil cylinder, an overhanging beam and a soil ball hoisting and rotating assembly. A cylinder body of the variable-amplitude hydraulic oil cylinder is provided with a double-lug ring, and a piston rod is provided with a single-lug ring. The overhanging beam is provided with a first double-lug ring, a second double-lug ring and a second flange plate which is provided with an inner cylindrical face. The soil balls can be automatically hoisted and rotated to facilitate rope winding work of the soil balls, nursery stocks can be automatically loaded on a transporting vehicle, intelligent control is easy to achieve, automated work is achieved, operating is convenient, and the working efficiency of soil ball hoisting and rotating is high.