17 results about "Swing bridge" patented technology

The invention provides a prefabricated height-adjustable support system for a swivel bridge and a construction method. The system comprises an embedded base, a lower support plate, a height-adjustable core module, an upper support plate and a locking device. The pre-embedded base is of a reinforced concrete structure, the pre-embedded base and a side pier cover beam are cast and formed at the same time before swivel construction, and an anchoring part used for subsequent connection is pre-embedded in the top of the pre-embedded base; the lower support plate is fixedly mounted on the embedded base through the anchoring part; the height-adjustable core module is arranged on the lower support plate, is used for bearing and transmitting an upper structure load and can realize stepless height adjustment in the vertical direction; the upper support plate is supported on the height-adjustable core module, and the top of the upper support plate is used for making contact with a beam bottom embedded part of a swivel beam and transmitting loads. The locking device comprises a temporary locking mechanism and a final locking mechanism. The construction safety and efficiency are remarkably improved, and it is ensured that the stress state of the structure is highly matched with the design.

The application discloses a shearing pin embedded outer package super high performance concrete-steel pipe concrete swing bridge pier, which is applied to a bridge and comprises a bearing platform and a composite pier column arranged on the bearing platform, a shearing resistance assembly is embedded in the lower part of the composite pier column and matched with the bearing platform, and a UHPC layer of the composite pier column and a steel pipe layer-concrete column (steel pipe concrete CFST) form a swing bridge pier (UHPC-CFST swing pier); this makes the scheme capable of utilizing UHPC and CFST to improve the toughness of the body, and capable of solving the swing rotation and shearing limiting contradiction of the bridge pier system through a connecting structure; the scheme improves the impact resistance and compression crushing resistance through the collaborative stress of the UHPC shell and the internal CFST, realizes the compatibility of high shearing bearing capacity and excellent self-resetting capacity through the 'limiting translation and releasing rotation' mechanism of the CFST shearing pin and the steel sleeve ring cooperation, and can solve the problems of insufficient interface shearing capacity of the existing swing bridge pier under strong earthquakes and impact loads and easy compression crushing of the pier bottom.

The utility model discloses a kind of support devices for railway wide-span swivel bridge construction, including swivel bridge body, the bottom end of swivel bridge body is provided with rotating support assembly, rotating support assembly includes support base and rotating support body, rotating support body has auxiliary support mechanism in annular array of circumferential side, each group of auxiliary support mechanism has at least one auxiliary wheel, so that rotating support body rotates on support base to realize the swivel operation of swivel bridge body, multiple auxiliary wheels rotate on rotating support body and support base circumferential side and landing with rotating support body synchronous operation, the side of each auxiliary wheel is provided with anti-inclination positioning assembly, the end of anti-inclination positioning assembly away from auxiliary wheel and support base sliding friction contact, so that when auxiliary wheel rotates around support base, anti-inclination positioning assembly can support auxiliary wheel stable anti-inclination misplacement.The utility model can expand support area, improve the effect of structural stability in rotation process.

The application relates to the technical field of motion regulation and driving, in particular to a reciprocating motion amplification device and method of a flexible structure of a swing bridge. The reciprocating motion amplification device comprises a loading unit, an excitation execution unit, a self-adaptive identification unit and an energy supply unit. The excitation execution unit and the self-adaptive identification unit are both installed in the loading unit. The self-adaptive identification unit collects vibration response signals of the flexible target structure in real time and identifies the real-time natural frequency, controls the excitation execution unit to adjust the excitation frequency, so that the excitation frequency is automatically matched with the real-time natural frequency, resonance effect is excited, and reciprocating motion amplification is realized. Through closed-loop self-adaptive control, frequency drift is automatically tracked without manual intervention, excitation power consumption is reduced while the significant amplification effect is maintained, and the system adaptability and intelligent level are improved.

The utility model provides a swing bridge and fork truck for fork truck, include: drive wheel mechanism, including drive wheel and drive connection frame, drive wheel rotatable installation in drive connection frame on, swing bridge mechanism, its one end with drive connection frame's upper end swing joint, the other end with fork truck car body swing joint, lower swing bridge mechanism, be located below swing bridge mechanism, its one end with drive connection frame's lower end swing joint, middle part with fork truck car body swing joint, auxiliary wheel mechanism, including auxiliary wheel, install below lower swing bridge mechanism other end, first buffer mechanism, set up in lower swing bridge mechanism, its one end with lower swing bridge mechanism fixed connection, the other end with fork truck car body fixed connection, first gap adjusting structure, set up in the connecting place of lower swing bridge mechanism and fork truck car body, second gap adjusting structure, set up in the connecting place of lower swing bridge mechanism and drive connection frame. Realize drive wheel posture stable, effective shock attenuation, reduce abrasion and abnormal sound, simplify assembly and reduce cost.

This invention provides a trajectory planning and intelligent control method for a three-stage swing-type overhead crane, relating to the technical field of intelligent overhead crane systems. The method includes: defining a planar coordinate system and determining the position coordinates of the crane's trolley, hook, frame, and load within the planar coordinate system; obtaining a dynamic model using the Lagrange equation based on the position coordinates; designing a controller based on the dynamic model; setting up a two-layer radial basis function neural network and determining the control force; and determining the overall control law based on the position coordinates, the controller, and the control force. According to this invention, intelligent anti-sway control of the three-stage swing system improves control quality, enhances the system's anti-interference capability, and improves the overall system safety level.

The utility model belongs to the AGV technical field, and disclose a parking robot, include: frame, clamping arm subassembly, drive walking component, drive walking component setting in the frame bottom and ground contact, the clamping arm subassembly symmetry sets up in the frame both sides telescopic clamping tire, the utility model drive subassembly's swing bridge structure realizes drive unit movement by the swing of connecting rod no.

This application discloses a bridge span support structure and construction method for a hybrid box girder continuous beam swing bridge, specifically relating to the field of bridge support technology. The structure includes a pile foundation, with a pile cap fixedly connected to the top of the pile foundation. A swing system component is located at the center of the top of the pile cap, and a pier component is fixedly connected to the top of the swing system component. A main beam is located on the top of the pier component, comprising a box girder segment and a channel girder segment. A box girder segment is fixedly connected to the center of the top of the pier component, and channel girder segments are fixedly connected to both sides of the box girder segment. The swing system component includes a ball joint, support legs, a slide rail, an upper turntable, a lower turntable, a swing locking block, and an adaptive composite liner. This application dynamically adjusts the friction coefficient through the adaptive composite liner, achieving zero-interference construction across the bridge using the swing system. The hybrid box girder optimizes material distribution, reduces structural weight, and the modular design of the components facilitates construction.

The utility model belongs to AGV chassis technical field especially for a kind of AGV dolly chassis structure, including chassis main body and travelling mechanism, the travelling mechanism includes: first swing bridge;Swing type is in the second swing bridge of the chassis main body, the first swing bridge with the second swing bridge opposite distribution, and both proximal end movable joint;Auxiliary universal wheel;Mounting bracket fixed in first swing bridge;Driving wheel is rotatably installed in mounting bracket;And for driving driving wheel rotation travelling motor;In the utility model, adopt split swing bridge design, both opposite distribution and proximal end movable joint, can independently around bridge shaft rotation, this design breaks the rigid constraint of integral structure, can disperse stress, reduce torque, solve the problem that integral swing bridge is easily tired, load concentration, ensure that all wheels contact with ground, avoid load concentration in part wheel, single swing unit failure does not need to be overall disassembled, reduce maintenance cost and process complexity.

The invention relates to the technical field of anti-swing control of bridge cranes, in particular to a double-swing bridge crane integrated control method and system which comprises an equation calculation unit, a shaping design unit, a target setting unit, a convolution operation unit, an integral operation unit, an error calculation unit and a control calculation unit. By arranging a double-pendulum bridge crane system mathematical model with a double-pendulum effect and introducing an input shaper, the swing suppression and anti-interference performance of the system disclosed by the invention is improved based on the control of the control system on the double-pendulum bridge crane, and by arranging the multi-loop control system and the nonlinear PID integrated control system, the system has the advantages of high reliability and high reliability. Through the synergistic effect of input shaping and the controller, the vibration frequency characteristic and full-state real-time information of the double-pendulum bridge type crane system are fully considered, so that the double-pendulum bridge type crane system has good response speed and stability, the residual swing of the double-pendulum bridge type crane system is reduced, and the service life of the double-pendulum bridge type crane system is prolonged. And the engineering transportation efficiency of the double-pendulum bridge crane system is improved.

The application discloses a continuous steel web-plate truss double-layer combined swivel bridge stress conversion method, which comprises the following steps: after the ribbed slab type prestressed concrete beam structure is completely poured and tensioned, the support is removed, then the temporary supporting piers are removed in a symmetric mode according to the mode of removing one every other one from the main pier to the two end directions, and the outermost row of temporary supporting piers is reserved to be removed after temporary steel supports are installed; finally, the main beam side pier supporting cushion stones are poured, and the bearings are installed; the main beam is supported on the bearings, and the stress conversion is completed; by using the construction scheme, the outermost row of temporary supporting piers of the swivel bridge is reserved to be removed after the temporary steel supports are installed, so that the structure state of the swivel bridge in the three-pier two-span supporting state in the service state is effectively inspected before the outermost row of temporary supporting piers is removed, the structure state is in line with the design requirements, and the longitudinal overturning stability of the long cantilever structure in the process of removing the outermost row of temporary supporting piers and the swivel construction is greatly enhanced.

The invention belongs to the technical field of crane equipment, and particularly relates to an anti-swing bridge crane which comprises a high frame, a bridge frame is slidably connected to the high frame, and a crane carriage is arranged on the bridge frame; the crane carriage comprises a carriage frame, a hoisting mechanism is arranged on the carriage frame, and an anti-swing mechanism matched with a steel wire rope of the hoisting mechanism is arranged on the carriage frame; the anti-swing mechanism comprises a lifting frame which lifts up and down along the frame, and the maximum lifting height of the lifting frame is gradually changed; a plurality of fixed pulley blocks for limiting the steel wire rope are rotationally connected to the lifting frame; the lifting frame is further connected with a pair of sliding frames arranged below the fixed pulley block in a sliding mode, and the pair of sliding frames are each rotationally connected with two movable pulley blocks used for limiting the corresponding steel wire ropes. The problem that an existing bridge crane is prone to swing in the heavy object hoisting process is effectively solved.

The utility model relates to a conveying swing bridge for glass production and an air pressure kettle system thereof, comprising a swing bridge frame which is positioned outside an air pressure kettle body; the transmission mechanism is installed on the swing bridge frame, the glass vehicle is located on the transmission mechanism, the transmission mechanism is provided with a rotating end and a free end, and the free end can be meshed with a transmission gear in the air pressure kettle body; the power source is arranged at the rotating end of the conveying mechanism, can drive the conveying mechanism to convey the glass vehicle into the air pressure kettle body and is matched with the transmission gear of the air pressure kettle body through the conveying mechanism; the lifting mechanism is located at the end, close to the power source, of the bottom of the swing bridge frame, hinged to the swing bridge frame and capable of driving the swing bridge frame to rotate upwards along the axis of the power source so as to lift the swing bridge frame. A lot of time waste caused by manual pushing to the air pressure kettle body and manual walking out of the air pressure kettle body is avoided, and the safety risk is reduced.

This invention provides a large-span swing bridge structure and construction method based on a self-anchored suspension structure. The structure includes: a main bridge body, comprising a first pier, a main tower, and a first beam, the first beam being fixed to the top of the first pier; first suspension cable assemblies symmetrically arranged on both sides of the main tower, one end of each suspension cable assembly being fixed to the top of the main tower; and a swing system, comprising a pier cap, an upper turntable, and a lower turntable, the lower turntable being fixed to the top of the pier cap, the upper turntable being located above the lower turntable, the first pier being fixed to the top of the upper turntable, and a rotating assembly installed between the upper and lower turntables. The method includes: casting the lower turntable in place, constructing an annular slide, and placing spherical hinge supports; casting the upper turntable in place, fixing jack reaction seats, and placing support legs; completing the construction of the first pier, main tower, and first beam, arranging the first main cable, and tensioning the first suspender; and rotating the main bridge structure to the corresponding position. This invention is applicable to the construction of swing bridges of various spans, especially large spans.

This invention discloses a method for railway safety assessment under time-varying effects throughout the construction process of a railway-related T-shaped rotating bridge. This method divides the entire construction process of a railway-related T-shaped rotating bridge into three analysis stages: bridge completion process analysis, bridge rotation motion analysis, and bridge operation status analysis. In the bridge completion process analysis, a coupled analysis model of the bridge completion process and the railway is established to consider the impact of the bridge completion process on the railway. In the bridge rotation motion analysis, a refined analysis model of the bridge is first established to analyze the maximum deformation of the piers during three transient states: rotation start-up, uniform motion, and rotation braking. Then, the maximum deformation of the piers is applied to an equivalent coupled analysis model to achieve a refined analysis of the impact of the entire bridge rotation process on the existing railway. In the bridge operation status analysis, a coupled analysis model of the bridge operation status and the railway is established to consider the impact of the bridge operation process on the railway. In summary, this method can achieve railway safety assessment under time-varying effects throughout the construction process of a railway-related T-shaped rotating bridge.

The utility model discloses a heavy load latent AGV of self -adaptation ground relates to heavy load AGV technical field, including AGV chassis, AGV chassis side fixedly be provided with the lamp area, through swing bridge type suspension release whole bridge rotation degree of freedom, four wheel layout is equivalent to 'three point one face' structure, ensure that all wheel train reliable ground connection on uneven ground, avoid wheel train from the root source to hang in the air, simplify suspension structure and improve complex ground traffic stability significantly, simultaneously, adopt the linkage of many filiform rods and lift the platform, by precision transmission mechanism drive high accuracy ball screw lifter of servo motor, combine closed loop control, realized very high lifting positioning accuracy and repeat stability, satisfy the demand of precision operation, response speed is fast, no hydraulic lag, combine diagonal laser obstacle avoidance radar, four around anticollision strip, emergency stop button, lamp area and multilevel safety protection of voice loudspeaker, realized 360 degree dead angleless safety guarantee, ensure the operation reliability under the emergency situation.

The application discloses a multi-span self-resetting swing double-column pier bridge system with additional small-displacement sliding and limiting devices, and belongs to the technical field of swing bridge systems, which comprises a main beam, a pier column and a pile cap arranged in sequence from top to bottom, and prestressed tendons are arranged between the main beam, the pier column and the pile cap; a small-displacement sliding device is arranged between the pier column and the main beam, and the small-displacement sliding device is used for the deformation displacement of the main beam along the bridge direction relative to the pier column when the main beam deforms; a limiting device is further arranged between the pier column and the main beam, and the limiting device is used for limiting the continuous movement of the bridge when the main beam moves to the limit position of the deformation displacement relative to the pier column; the application aims to allow the main beam to relatively slide with the pier under the action of temperature; when the relative sliding between the main beam and the pier along the bridge is large due to the action of an earthquake, the limiting device is triggered, so that the stress mechanism and the seismic performance of the bridge system in the swing process are the same as those of a common multi-span self-resetting swing double-column pier bridge system.