1128 results about "Overhead crane" patented technology

A load-lifting apparatus has one or more prime power sources, one or more energy storage systems and regenerative braking. Regenerative energy is recovered when the load-lifting apparatus lowers its load. The elements of the prime power sources, energy storage devices and electrical components may be distributed to provide stability for the load-lifting apparatus. The general power architecture and energy recovery method can be applied to cranes, rubber-tired gantry cranes, overhead cranes, mobile cranes, ship-to-shore cranes, container cranes, rail-mounted gantry cranes, straddle carrier cranes and elevators. In such an architecture, the energy storage system helps alleviate the power rating requirement of the prime power source with respect to the peak power requirement for lifting a load.

The automatic welding machine for annular seam in specially shaped tank includes welding machine, specially shaped tank, rotating device installed on the tank, overhead crane track on the side of the tank, support on the overhead crane track, and welding platform on the support. The present invention features the horizontal track fixed on the welding platform with installed horizontal sliding plate, the longitudinal track installed on the other side of the sliding plate with installed longitudinal sliding plate, welding wire disc with wound welding wire and welding wire transmission unit on the longitudinal sliding plate, bogie with welding gun, driving motor and distance sensor connected to control via cable and fixed to the lower part of the longitudinal sliding plate, and the controller connected also to the driving motor in the bogie and the rotating device on the tank. The present invention has the features of automatic welding, high efficiency and good welding effect.

In a first aspect, the invention is directed to a manipulator that is relatively compact and has a relatively large range of motion. The manipulator includes a linkage that folds back on itself, which reduces the footprint of the linkage. In a particular embodiment, the manipulator includes a linkage and a load balancing device. The linkage includes a first link, a second link, a third link and a fourth link. The first link and second links are rotatably connected to a base about first and second connection axes. The third and fourth links are connected to the first and second links respectively about third and fourth connection axes respectively. The third and fourth links are rotatably connected to a lift arm about fifth and sixth connection axes respectively, wherein the fifth and sixth connection axes are horizontally displaced from the third and fourth connection axes in the direction of the first and second connection axes. The load balancing device is configured to support the linkage in a selected position against a load and configured to permit the load to be moved upwards or downwards with a selected amount of force on the lift arm. The manipulator may be provided as part of a load maneuvering system that further includes a transport system that may be similar to that used on an overhead crane.

The invention relates to a spreader anti-sway controlling method of an overhead traveling crane. The spreader has 5 measuring parameters: a trolley position of a supporting spreader, a spreader cable length, a spreader cable swing angle, a trolley speed, and a spreader elevation speed. The 5 measuring parameters are respectively measured by 2 absolute encoders, a video camera system, and an incremental encoder. The trolley speed and the spreader elevation speed serve as input signals and act upon an AC servo motor driven by the trolley and the spreader through a frequency converter, such that the entire spreader system can work harmonically. A controlling strategy and the treatment upon the collected signals are realized by a whole PLC processor. A controlling method and a controlling strategy are provided. With the video camera system, through spreader real-time monitoring, spreader swing angle which is the position and the cable length are obtained. Trolley position information and cable length information are obtained by using the encoders. The signals are read by using the absolute encoders. Feedback signals are acquired by the incremental encoder. The controlling method provide by the invention has the advantages of higher controlling precision and higher data processing speed.

A material handling system for placing and retrieving palletized loads in densely spaced storage areas utilizing an overhead bridge crane connected to a pallet load handling device by way of lifting cables and a stabilizing mast assembly. The pallet handling devices may include vertically or horizontally movable pallet engaging fork mechanisms mounted on a generally rectangular frame which is operable to be lowered over a pallet load and engaged therewith by way of the fork mechanisms. The pallet handling device frame may be split and interconnected by actuator mechanisms to facilitate ease of placing the handling devices over a pallet load and releasing the load from the handling device.

A loading device for ISO containers in a container terminal with a container bridge for the loading and unloading of ships and with automatic incoming and outgoing transfer of the containers by means of automatic guided vehicles, with at least one container load suspension device in the form of a spreader and devices for the intermediate positioning of the container within the loading device to allow the installation or removal of the twistlocks, and with platforms for the workers performing this task. The loading device consists of a polar bridge crane, which can rotate around its center vertical axis, and which is designed as a bridge crane with a trolley capable of traveling on a crane bridge supported on a circular track located in the rear area of the land-side rail of the container bridge.

An actuation system includes a bridge crane, a trolley, and an end effector and is configured for moving a payload. A first actuator is operatively connected to the bridge crane. The bridge crane is configured for moving along an X axis in response to the first actuator being actuated. The trolley extends from the bridge crane. A second actuator is operatively connected to the trolley. The trolley is configured for moving along a Y axis in response to the second actuator being actuated. The end effector extends from the trolley and is configured for supporting a payload. A third actuator is operatively connected to the end effector. The end effector is configured for rotating about the Z axis in response to the third actuator being actuated to rotate the end effector. Each actuator is disposed in spaced relationship to the bridge crane, the trolley, and the end effector.

A glass sheet quench station loader (42) and method for installing a quench module set (44) of lower and upper quench modules (46,48) includes a quench carriage (440) of a horizontally opening U shape that receives the quench modules for the loading. Mounts (446,454) mount the quench modules for movement to the quench station (40) and for subsequent movement from the quench station to permit installation of another quench module set for another production run. The quench loader (42) includes an overhead crane (447) and an overhead railway (448) along which the crane moves to move the quench carriage (440) and the quench modules mounted thereby to and from the quench station.

The invention discloses a bridge hoisting control device that has shaking-proof effect. It includes speed giving signal generator, speed adjusting unit and motor, time lag filter that receives the primary value of speed giving signal and transforms into filtered speed giving signal that has shaking-proof effect, and sends to speed adjusting unit. The invention realizes the shaking proof effect for bridge hoist.

The invention discloses a garbage grab bucket crane, which comprises a PLC (programmable logic controller), a frequency converter and a motor, wherein an anti-swinging function module is arranged in the PLC, an output end interface of the anti-swinging function module is connected with the frequency converter, the anti-swinging function module carries out operation on the input speed analog quantity value and then transmits the data to the frequency converter, and the rotating speed of the motor is set by the frequency converter according to the data input from the anti-swinging function module for controlling the work of the motor. The anti-swinging function module is built in the PLC, only the speed analog quantity value of each gear needs to be set in the PLC, and the small-amplitude swinging or no swinging can be realized during the high-speed operation of the garbage grab bucket crane through the function block operation. Therefore, the problem of large-amplitude swinging often generated during the operation of the garbage grab bucket crane is solved, and the stable and reliable operation of the garbage grab bucket crane is ensured.

A wind tower erection device and method for erecting wind turbine towers which avoid the need for using expensive cranes. The device and method employs a stacker unit for anchoring to the wind turbine foundation, a plurality of intermediate modules, and a mechanical actuator for raising the intermediate modules vertically. The stacker unit has a receptacle allowing for lateral sliding of intermediate modules inside of the stacker unit. In one embodiment, the stacker unit has a receptacle for lateral sliding of intermediate modules inside of the stacker unit. The stacker unit and the intermediate modules each have at least one open side to for positioning of tower sections within the stacker unit and stacked intermediate modules. A bridge crane section is initially placed on top of the stacked intermediate modules. The bridge crane is raised vertically as additional intermediate modules are added at the bottom, thereby allowing wind tower sections to be winched into place using the crane, each being added on top of the other as the stacked intermediate modules increase to the necessary height.

The invention relates to a method for installing a bridge crane using load-supporting roof beams for hoisting and usage thereof. The invention is characterized in that: hoisting points are arranged on roof beams of a workshop, components of the bridge crane are assembled on the ground on site, and hoists and specified suspenders are used for hoisting the bridge crane; the method mainly comprises the steps of arranging of load-supporting beams for hoisting, hoists and hoisting points, fabrication of the specified suspenders, arranging of assembly pulleys and wire ropes, assembly of the bridge crane on the ground, hoisting of bridge stands of the bridge crane, hoisting of main and assistant trolleys of the bridge crane and installation of the wire ropes and the suspenders. According to the invention, site requirements are low, finished roofing of the workshop does not need to be dismounted, no giant crane is utilized, and facilities purchased and suspenders fabricated at a time can be used repeatedly, thereby saving cost; lifting and suspending with two cranes are avoided, thereby reducing safety risks; components are assembled in place on the ground and hoisted at a time, thereby improving working efficiency and abating risks in high altitude construction; time for actual hoisting is short and operationality is strong; the method is applicable to installation of large and medium-sized bridge cranes without being influenced by sites or hoisting height.

A bottom block assembly for an overhead crane includes a main bottom block, an outer frame carried by the main bottom block and rotatable relative to the main bottom block about a vertical axis of rotation, and a pair of paddles carried by the outer frame and downwardly extending from the outer frame on opposed sides of the main bottom block. Upper ends of the paddles are pivotably secured to the outer frame about horizontal axes so that lower ends of the paddles pivot toward and away from each other. The paddles are pivotable between a closed position wherein each of the paddles is substantially vertical and an open position wherein the lower end of each of the paddles is outwardly pivoted away from a vertical central axis. Each of the paddles has a keyhole-shaped closed-section opening near its lower end.

An overhead console may include a conversation mirror having a fitting protrusion formed on one end thereof, a housing having adjoining main and auxiliary spaces defined therein, wherein the auxiliary space releasably stores the conversation mirror, a cover pivotally coupled to the housing to open or close the main space, wherein the cover has a bucket to be selectively engaged to the main space, a latch part provided in an upper portion of the auxiliary space, wherein the fitting protrusion of the conversation mirror is fastened into or unfastened from the latch part so that the conversation mirror is stored inside or released from the auxiliary space, and an elastic member fixing the auxiliary space and the conversation mirror, wherein the elastic member applies an elastic force in a direction to release the conversation mirror from the auxiliary space.

A mobile cargo container handling buffer crane having a bridge crane mounted thereon for transferring cargo containers between a ship and land transportation with an intermediate transfer position at which a suspended container can be noninvasively inspected by a longitudinally reciprocating container traversing nonintrusive inspection apparatus.

The invention belongs to the technical field of hot-rolled pickled plates, and particularly relates to a production process for a thick-specification hot-rolled pickled plate. The production process for the thick-specification hot-rolled pickled plate comprises the following steps of: arranging a steel coil preparatory station behind a loading device to form a steel coil loading and strip coil previous preparation part of a push-pull type pickling unit, wherein the loading device is mainly responsible for loading work of hot-rolled raw material strip coils, and mainly comprises a workshop overhead crane for hoisting and putting the raw material strip coils onto the loading device, and a strip coil shuttle car is used for transporting the strip coils to strip binding positions to start strip binding after the raw material strip coils are transported to a weighing device through a step transportation beam to weigh; and the steel coil preparatory station is mainly used for straightening strip heads and cutting off unqualified parts of the strip heads for the raw material strip coils to prepare for uncoiling of an uncoiling machine. The production process has the beneficial effects of expanding the variety and the specification production range of products, and improving plate shape and surface smoothness of the hot-rolled picked strip steel; and the produced product is wide in variety and specification range and is good in quality.