329 results about "Bridge type" patented technology

The invention discloses a road bridge design method and system based on a BIM real scene model, and relates to the technical field of constructional engineering information, and the method comprises the steps: a BIM model carries out multi-objective optimization through a quantum annealing algorithm in combination with a bridge-crossing topology library, synchronously optimizes topological connectivity, structural stress and energy consumption indexes, generates a parameterized component, and feeds back the parameterized component to the BIM model; the model of the BIM model is loaded and optimized based on augmented reality equipment, the model is superposed to a reality scene through space anchoring, and the BIM model is corrected in combination with a conflict monitoring engine and a knowledge graph; the corrected BIM model is deployed to edge computer equipment, a dynamic deviation thermodynamic diagram is generated by scanning a construction surface, a lofting robot is driven to execute coordinate dotting, and meanwhile construction error data is transmitted back; according to the method, the problem that a global optimal solution is difficult to find when a traditional optimization algorithm is used for processing a complex multi-target problem is solved by utilizing an advanced quantum computing technology, and the economical efficiency and the structural safety of bridge design are greatly improved.

The invention provides a VAE-ALSTM-based bridge structure state anomaly detection method and system, and the method comprises the steps: carrying out the standardization and sliding window segmentation of vibration monitoring data, extracting potential features through a variational auto-encoder, and carrying out the time sequence prediction and reconstruction in combination with an attention-enhanced long-short-term memory network, thereby achieving the detection of the abnormal state of a bridge structure. Fusing the prediction error and the reconstruction error to generate an abnormal score; a threshold value is automatically set through quartile distance statistics, and self-adaptive judgment under different bridge types is achieved; when the score crosses the boundary, real-time alarm is triggered; the system correspondingly comprises a data preprocessing and sample construction module, a VAE-ALSTM model construction module, a training stage prediction and reconstruction module, an error calculation and anomaly scoring module, a threshold setting module and an anomaly judgment and alarm module. The method and the system do not need manual threshold parameter adjustment, are high in precision and good in real-time performance, and can be widely applied to the fields of bridge health monitoring, operation and maintenance early warning and the like.

According to the rapid modeling method for the finite element of the bridge rod system unit disclosed by the invention, a clearer and more reasonable modeling method is constructed by combining rod system structure modeling and BIM modeling logic, and a user can obtain the finite element of the bridge rod system unit by modifying simple underlying data or utilizing a result formed in the method. And analysis and modeling are realized by effectively combining with other software at low cost. The method uses a Python language, and comprises the following steps of: 1, realizing attributes of editing classes by utilizing the Python language; 2, creating a material and a section instance; 3, the bridge structure is divided into different component instances corresponding to the bridge types, boundary information between different components is bound through the boundary class, and loads acting on the different components are determined through the load class; 4, packaging the axis class, and binding the component instance with the axis instance; 5, adding a calculation module, and carrying out mesh generation; 6, obtaining each subdivision point on the axis, and connecting the subdivision points to generate a corresponding unit set; and 7, establishing boundary and load examples.

The invention provides a bridge switch and a relay. The bridge switch comprises two static contacts and a bridge moving contact. Each static contact is provided with a first static contact and a second static contact at an interval; the bridge type movable contact comprises a rigid overcurrent bridge and a flexible overcurrent bridge, the rigid overcurrent bridge is provided with a first movable contact corresponding to the first static contacts of the two static contacts, and when the bridge type movable contact is disconnected from the two static contacts, the distance between the second movable contact and the second static contact is smaller than the distance between the first movable contact and the first static contact; the flexible over-current bridge is provided with an elastic deformation part, and is provided with a second movable contact corresponding to the second static contacts of the two static contact members, and the second movable contact is arranged at the elastic deformation part. The relay comprises the bridge switch. When the contact is applied, the contact resistance is small, the temperature rise is low, the contact loss is small, and the contact service life is longer.

The invention discloses a bridge substructure modeling scheme generation method and device, equipment and a medium, and relates to the technical field of bridge engineering, and the method comprises the steps: obtaining bridge superstructure design input parameters, constructing substructure design task information, and generating design parameters through big language model reasoning; and a modeling script is automatically generated, and structural response calculation is carried out. Different modeling strategies are judged and executed according to the calculation result, finally, a target modeling scheme meeting the requirement is intelligently generated, design parameter generation and automatic modeling of the bridge substructure in a non-standard bridge type scene are achieved, and the design efficiency and accuracy are improved.

The utility model belongs to the technical field of glass fiber production, and particularly relates to a novel multi-drawing wire drawing machine head with a modular structure. The machine head comprises a machine head main shaft, an upper wire ring, a pull rod seat, a broken bridge type expansion sheet and a plurality of sections of sectional type aluminum rotary drums, expansion piece telescopic mechanisms are arranged between the upper wire ring and the sectional type aluminum rotary drum, between the sectional type aluminum rotary drum and the pull rod base and between every two adjacent sections of sectional type aluminum rotary drums. The expansion piece telescopic mechanism comprises a piston ring, a slope sliding block ring, a connecting rod sliding block, a connecting rod, a sliding block ring top spring, a sliding block tension spring and an expansion piece tension spring. According to the novel multi-split wire drawing machine head with the modular structure, the technical problems that the machining difficulty of an ultra-long aluminum rotary drum and an ultra-long expansion sheet is large, the machining quality cannot be guaranteed, and disassembly and assembly are difficult during assembly and maintenance are solved; and meanwhile, the control precision and the expansion piece stretching efficiency are improved, and the power consumption of the wire drawing machine is reduced.

The invention discloses a bridge health monitoring system which comprises a sensing layer, a transmission layer, a processing layer and an application layer which are in communication connection in sequence. The sensing layer synchronously collects structural mechanics, environmental influence and traffic load data through multi-source heterogeneous sensing nodes, and the sensing nodes adopt a solar energy and vibration energy double-source energy supply and low-power-consumption mechanism; the transmission layer adopts a'wireless private network + edge gateway 'mixed mode, and has data caching and breakpoint resuming functions; the processing layer analyzes data through a deep learning fusion algorithm based on an attention mechanism, and realizes dynamic early warning threshold adaptive adjustment in combination with a Bayesian reasoning model; and the application layer provides a visual interface, graded early warning and targeted maintenance decision suggestions. The system achieves the precise monitoring of the full life cycle of the bridge, improves the evaluation accuracy and system stability, reduces the operation and maintenance cost, provides scientific support for the safe operation and maintenance of the bridge, is suitable for the health monitoring scenes of various bridge types, and greatly improves the accuracy of the evaluation of the health state of the bridge.

The invention discloses a structure health monitoring method based on a multi-parameter integrated sensor, relates to the technical field of bridge structure health monitoring, and solves the problems that in the prior art, bridge structure health detection is not comprehensive, and bridge structure response is separated from the actual use state. The method comprises the steps that a comparison bridge similar to a target bridge is matched according to bridge type data, bridge index data of the comparison bridge are analyzed, and a priority monitoring sequence of the target bridge is obtained through analysis; obtaining the maximum allowable load of the target bridge, and detecting the structural health condition of the target bridge according to the first priority monitoring target; analyzing the use condition of the target bridge according to the real-time monitoring data and the second priority monitoring target; the damage condition of the corresponding bridge floor of the target bridge is analyzed according to the bridge index data, whether the target bridge has the passing condition or not is judged, mutual hooking of the bridge structure and the use state is achieved, and then comprehensive detection of the bridge structure is achieved.

The utility model discloses a double amplification energy consumption mechanism used between railway pier beams and a railway, comprising a rotation amplification device, one end of which is arranged at the bottom of a main beam and the other end of which is arranged on a pier; one end of the bridge-type amplifying device is connected with the rotary amplifying device, the other end of the bridge-type amplifying device is connected with a bridge pier lug plate, and the end of the bridge pier lug plate is arranged on the bridge pier; the self-resetting energy consumption damping device is arranged in the bridge type amplifying device; the self-resetting energy dissipation damping device comprises a self-resetting assembly and an energy dissipation assembly, and the self-resetting assembly and the energy dissipation assembly are of an integrated structure. According to the mechanism, through mutual cooperation of the rotation amplifying device, the bridge type amplifying device and the self-resetting energy dissipation damping device, the energy dissipation capacity of a bridge structure is improved, the relative displacement between a pier and a pier beam is reduced, structural resetting after an earthquake and energy consumption in the earthquake are achieved through self-resetting energy dissipation, damage to components of a bridge main body structure is avoided, and the service life of the bridge is prolonged. Damage control and post-earthquake function restorability of the bridge structure are achieved.

The invention discloses a bridge vortex-induced vibration sensitive pneumatic structure detection method and system based on three-dimensional laser scanning, and belongs to the technical field of bridge engineering and structural health monitoring. Three-dimensional point cloud data of a bridge structure are obtained through three-dimensional laser scanning, and geometric features are extracted after preprocessing; a pre-trained machine learning model is used for identifying the type of the component, shape comparison with a standard bridge type database is carried out, and whether the part has sensitive aerodynamic characteristics easily causing vortex vibration or not is comprehensively judged; for the sensitive characteristics, vortex-induced vibration risk parameters are calculated based on geometric parameters and compared with the inherent dynamic characteristics of the bridge to determine the risk level; for non-sensitive features, the evaluation is terminated. The method is mainly used for rapid evaluation of vortex-induced vibration risks in bridge design, construction and operation stages, provides technical support for bridge safety monitoring and maintenance, effectively prevents vortex-induced vibration accidents, and improves bridge durability and operation safety.

The utility model discloses a sealing heat preservation structure of a bridge type furnace body, the bridge type furnace body is formed by splicing a plurality of heat preservation plates, a splicing position is arranged between every two spliced heat preservation plates, and the sealing heat preservation structure of the bridge type furnace body comprises sealing cotton and a strut angle plate; the sealing cotton is laid on the side, facing the interior of the bridge type furnace body, of the splicing position and the side, back to the interior of the bridge type furnace body, of the splicing position so as to fill or cover a gap of the splicing position, and a blocking part is formed. The strut angle plate is arranged on the outer side of the blocking part and fixedly connected with the heat preservation plate so as to tightly press the sealing cotton. According to the bridge type furnace body, the sealing cotton is creatively laid at the splicing position of the heat preservation plates, the sealing cotton is tightly pressed and fixed through the angle supporting plates, gaps at the splicing position are sealed, heat in the bridge type furnace body is prevented from escaping through the gaps at the splicing position, and the problem of heat leakage of the bridge type furnace body is effectively solved.

The utility model discloses a bridge type eccentric water distributor with accurate measurement and regulation and reliable operation, which comprises a positioning sleeve and a water distributor main body, the positioning sleeve is fixedly connected with the water distributor main body, the positioning sleeve is provided with a positioning notch, and the inner wall of the water distributor main body is provided with a shunt ring; an adjustable water distribution assembly is arranged in the flow dividing ring and provided with a rotary regulation and control water nozzle. The upper end of the flow dividing ring is rotationally connected with a transmission pipe, and the transmission pipe is provided with an adjusting notch. The transmission pipe is connected with the adjustable water distribution assembly through an acceleration transmission mechanism. The utility model has the advantages of simple structure, few transmission structures, high reliability, easiness in processing and low production cost; the acceleration transmission mechanism is adopted to adjust the opening degree of the water nozzle of the water distributor, the sudden stop torque value of the measuring and adjusting instrument can be increased, the instrument can be stopped in time when the water amount is adjusted and controlled in place, rapid and accurate measuring and adjusting are achieved, and the measuring and adjusting success rate is increased.

The invention relates to the technical field of numerical control machine tool machining, in particular to a bridge type five-axis gantry machining center with an automatic exchange table, which comprises a worktable base, an exchange table base and a guide mechanism, the top of the exchange table base is provided with an exchange table which can be butted with the worktable base, and the guide mechanism is arranged between the exchange table base and the exchange table and is used for guiding the exchange table to move. Comprising a guide rail, a sliding base arranged on the guide rail in a sliding mode, a roller supporting assembly arranged on the sliding base in a stepped mode and an oil supply assembly used for driving lubricating oil to circularly flow in the sliding base. The device has the beneficial effects that the multiple roller supporting assemblies are arranged on the sliding base in a stepped mode, the roller supporting assemblies can abut against the guide rails when pressed, and the abutting number of the roller supporting assemblies can be adjusted in a self-adaptive mode according to the weight of the exchange workbench in the clamping stage of the exchange workbench; therefore, the weight of the pin roller intervening in work is matched with that of the workpiece, the workpiece is stably supported, and meanwhile the unnecessary contact area is reduced so as to reduce friction.

The invention belongs to the technical field of lifting equipment control, and particularly relates to a modeling method and a control method for a dynamic model of double-bridge type lifting equipment, and a dynamic equation of a five-degree-of-freedom double-bridge type crane is constructed through a Lagrange method. Constructing a geometric constraint relationship between the trolley I and the trolley II in the direction parallel to the bridge frame and the vertical direction, constructing a kinetic model of the double-bridge crane by combining the kinetic equation and the geometric constraint relationship, and converting the kinetic model into a universal model; based on the general model, a first error function is constructed according to the difference between the actual position and the expected position, and a virtual controller is constructed based on the first error function; and constructing a second error function based on the virtual controller, and constructing an actual controller based on the first error function, the virtual controller and the second error function. According to the technical scheme, overall modeling is carried out on the system through the constraint relation between the two trolleys, the quality of the lifting hook is considered during modeling, and the singular problem is solved.

The invention relates to the technical field of bridge inspection, in particular to a road bridge automatic inspection system based on an unmanned aerial vehicle, which comprises the following steps: determining bridge structure information of an inspected bridge, and determining a bridge type according to the bridge structure information; determining a structure inspection grade table of the bridge according to the bridge type; according to the structure inspection grade table and the unmanned aerial vehicle information, the acquisition distance and the acquisition angle of the unmanned aerial vehicle at each position during inspection are determined, so that accurate bridge inspection information can be obtained during inspection, the probability of collision between the unmanned aerial vehicle and the bridge can be reduced, and the flight safety of the unmanned aerial vehicle is improved. By means of the mode, the problems that in the bridge inspection aspect, the control ability of an operator on the unmanned aerial vehicle is relied on, the problem cannot be found in time, and an air crash event is likely to happen are solved.

The invention discloses a bridge type hoisting device for hoisting large equipment, and relates to the field of hoisting devices.The bridge type hoisting device comprises two movable sliding rails, a mounting sliding rail is slidably mounted on the two movable sliding rails, a hoisting trolley is mounted on the mounting sliding rail, and a hoisting motor, a steel cable winding drum and a speed reducer are mounted on the hoisting trolley; and a motor shaft is mounted on the hoisting motor. It needs to be explained that in the embodiment of the invention, when the hoisting trolley hoists large equipment, the dustproof box and the two bottom side sealing plates are synchronously opened for heat dissipation, and when hoisting is completed, the dustproof box and the two bottom side sealing plates are synchronously closed, so that the problem that the equipment on the hoisting trolley is corroded due to dust accumulation or long-term exposure is avoided; the safety of each device on the hoisting trolley is ensured; in addition, the hoisting steel cable can be automatically lubricated during use, and when the hoisting trolley stops using, the lubricating head is sealed through the lubricating sealing plate, so that the purpose of automatically opening and closing the lubricating head is achieved, and waste of lubricating oil is avoided.

The utility model relates to the technical field of cab wind prevention, in particular to a windproof anchoring device for a cab of a bridge type grab ship unloader, which comprises at least one anchoring frame arranged on a top beam of the cab, an anchoring rod is inserted on the anchoring frame, the top beam of the cab is arranged on a guide rail through a pulley, and the guide rail is connected below a girder through a vertical pull rod. The anchoring rod can abut against the vertical pull rod. The windproof anchoring device for the cab of the bridge type grab ship unloader has the beneficial effects that the anchoring rod is clamped with the vertical pull rod, so that the cab can be anchored on site in strong wind weather, the cab is prevented from running in strong weather, the potential safety hazard of the cab is further reduced, the overall use effect is good, the practicability is high, and the windproof anchoring device is suitable for popularization and use.

The application discloses a bridge substructure modeling scheme generation method and device, equipment and medium, relates to the field of bridge engineering technology, and comprises the following steps: obtaining bridge superstructure design input parameters, constructing substructure design task information, generating design parameters by using a large language model reasoning, and then automatically generating a modeling script and performing structure response calculation. According to the calculation result, different modeling strategies are judged and executed, and finally a target modeling scheme meeting the requirements is intelligently generated, the design parameter generation and automatic modeling of the bridge substructure in a non-standard bridge type scene are realized, and the design efficiency and accuracy are improved.

The utility model belongs to the technical field of the shell fragment, and disclose a kind of combination bridge type shell fragment, including crossbeam, the lower surface of crossbeam is fixedly connected with first shell fragment, the lower surface of crossbeam is fixedly connected with second shell fragment, the lower surface of crossbeam is fixedly connected with insulating film, double-faced adhesive is provided on insulating film, first shell fragment, second shell fragment are provided with multiple shell fragment pressing area.Installation by the way of assembly, assembly can be disassembled, it is convenient to detect, repair or replace damaged part, without replacing entire shell fragment, reduce maintenance cost, modular design can realize the standardization and reuse of parts in batch production, reduce mould and production time, to reduce production cost, it is convenient to be integrated into integral system quickly, shorten assembly time, with high reliability, good elastic response and excellent electrical safety performance, ensure that shell fragment still can keep good conduction state under multiple plug or working environment change, guarantee the smoothness of pressing and disconnecting action.

The application discloses a bridge section catenary support post position automatic arrangement method and device, equipment and a storage medium, and relates to the technical field of electrified railway catenary, and comprises the following steps: configuring standard span, maximum span, minimum span and maximum allowable value of adjacent span difference as design parameters in an initial catenary plane layout; automatically obtaining bridge and bridge pier table attributes based on a bridge table and a bridge pier table; performing support offset arrangement calculation based on the design parameters and the bridge and bridge pier table attributes to obtain selected support positions; and automatically arranging catenary support posts based on the selected support positions, so as to meet the requirements of bridge type description, catenary support post position and bridge pier table distance setting, and catenary support post automatic arrangement of a bridge section.

The invention relates to a span bridge type offshore lightering platform, belongs to the technical field of offshore lightering operation, and solves the problem that the connecting efficiency of an existing lightering platform and a ship is low in the lightering operation process. The device comprises a first connecting plate, a lightering operation plate, a sixth connecting plate, a berthing platform base and a connecting bearing; the first connecting plate is connected with one end of the lightering operation plate in a hinged mode. The sixth connecting plate is rotationally connected with the other end of the lightering operation plate; a berthing platform base is mounted at the bottom of the first connecting plate, and the first connecting plate is in sliding connection with the berthing platform through the berthing platform base; a connecting bearing is arranged on the lower surface of the sixth connecting plate and can be connected with a berthing protruding block on a ship platform in an inserted mode. Quick connection of the ship and the berthing platform is achieved, and lightering operation is facilitated.

The utility model discloses a convenient overhauling's take material car wheel set relates to bridge type mix uniformity take material machine technical field, including fixed establishment, still including walking mechanism, the fixed establishment includes fixed frame, the fixed frame bottom is opened with fixed groove, the both ends outside bottom of fixed frame is equipped with the clamping plate, be equipped with connecting bolt between the clamping plate and fixed frame, the walking mechanism includes driven shaft, the driven shaft is located in fixed groove inboard, the both ends outside of driven shaft all rotatory sleeve and have bearing, two the bearing outside sleeve and have the car wheel, the both ends outside of car wheel all are equipped with the through cover. The utility model discloses a fastening bolt is through the through cover and is connected with the car wheel inner wall thread, can with the bearing frame oil seal fixed to the position of car wheel and driven shaft contact, through fixed groove and clamping plate can fix driven shaft, so that the car wheel can be in the inboard of fixed frame, so that the staff can conveniently overhaul and dismount car wheel.

An air-bridge type superconducting coupler is provided. A frequency-fixed superconducting coupler includes: a bridge over a substrate, the bridge comprised of superconducting material, the bridge having two ends that each comprise a respective contact pad, each contact pad having an electrical connection to a respectively corresponding superconducting qubit, and each contact pad directly or indirectly contacting the substrate, wherein there is a gap between the substrate and a corresponding portion of the bridge that is between the contact pads.

The present invention provides a lever-bridge hybrid two-stage amplification damper, which includes a constraint device. Lever-bridge hybrid amplification devices are symmetrically arranged inside the front and rear ends of the constraint device. A damper is connected between the two lever-bridge hybrid amplification devices. The lever-bridge hybrid amplification device includes a loading control part. The outer end of the loading control part is located outside the constraint device, and the left and right sides of the inner end are symmetrically connected with lever amplification devices respectively. The lever amplification device has fixed pin shafts, first movable pin shafts and second movable pin shafts arranged in a triangular pattern. The fixed pin shaft is hinged to the constraint device, the second movable pin shaft is hinged to the sliding long hole at the inner end of the loading control part, the first movable pin shaft is hinged to one end of a rotating plate, and the other end of the rotating plate is hinged to the damper. The present invention adopts a lever and bridge hybrid amplification mechanism, which can effectively improve the displacement amplification function of the damper and is applicable to external excitation under low-intensity action.

The application provides a structure multi-form swivel construction error elimination method, belongs to the field of bridge construction error control, and is used for solving the problems that the structure multi-form swivel construction error elimination method in the related art has single-link optimization, poor adaptability, weak cooperation and cannot meet the accurate error control of beam bridges, arch bridges and cable-stayed bridges in horizontal swivel, vertical swivel and combined swivel. The method first identifies the bridge type and the swivel form, constructs a full-link framework containing multiple units and cross-layer cooperation, generates an adaptive physical field module and anti-noise processes data, dynamically optimizes pre-correction instructions after multi-agent stage prediction, and forms a closed loop through sensitivity-driven iterative optimization. The method can realize accurate error control of multi-form swivel, and improve adaptability and cooperation.

A workbench is arranged on one side of a machine base, a bridge type fixing base is arranged on the upper surface of the machine base, a groove is formed in the middle of the lower surface of the bridge type fixing base, and a servo tool magazine body is arranged in the groove of the bridge type fixing base. The upper surface of a sliding block of the servo tool magazine body is provided with a rotating disc through a servo motor, the periphery of the rotating disc is evenly provided with a plurality of tool supporting pieces, and the sliding block is in sliding fit with the sliding rail. On one hand, installation of the servo tool magazine is achieved, and on the other hand, hiding of the servo tool magazine can be achieved, so that it is guaranteed that machining is not affected by the servo tool magazine, collision between the main shaft and the servo tool magazine is avoided, the machining range is guaranteed, and safety during working is improved.

The embodiment of the application provides a kind of based on BIM bridge model intelligent construction method and system, belong to based on BIM bridge model intelligent construction field;The method includes collecting bridge model construction related data and pre-processing, according to the bridge model construction related data after pre-processing, component library is established;The geometric linkage rule and topological connection logic of component in the component library are defined, and the initial BIM bridge model is generated through the generation of adversarial network;Lightweight finite element calculation is carried out on the initial BIM bridge model, and the optimized BIM bridge model is obtained;After the specification conflict detection and conflict parameter adjustment of the optimized BIM bridge model, the final bridge model is obtained.The application constructs parameter relation matrix and dynamic linkage mechanism, introduces the generation of complex bridge type in adversarial network, and introduces graph convolution network in adversarial network, to ensure that bridge topology is reasonable and parameters are dynamically linked.

The utility model relates to a cantilever crane with an adjustable stand column height, which relates to the field of crane equipment and comprises a telescopic stand column mechanism, a rotary arm, a rotary driving device arranged on the rotary arm and an electric hoist, the telescopic stand column mechanism comprises an inner stand column, an outer stand column, a lifting driving assembly and a guiding assembly, a mounting sliding groove is formed in the outer stand column, one end of the inner stand column is inserted into the mounting sliding groove, the other end of the inner stand column is connected with the rotating arm, and the lifting driving assembly is used for driving the inner stand column to ascend and descend in the mounting sliding groove; the guide assembly is used for guiding lifting of the inner stand column. When the cantilever crane works, the inner stand column is lifted, so that the cantilever crane can meet the lifting height of lifted objects, and when the bridge type double-beam crane needs to be used, the inner stand column is lowered, so that the safety in the lifting process is improved, and collision accidents are reduced.

A milling device for inner and outer cutting edges of a bolt clipper belongs to the technical field of bolt clipper production, and comprises a base and a workbench, the workbench is arranged on the base, an inner cavity space capable of accommodating an object is arranged in the workbench, two groups of clamping units are oppositely arranged in an inner cavity of the workbench, and two groups of bridge-shaped clamping plates are connected to the two groups of clamping units in parallel; the upper end of the bridge-shaped clamping plate is movably arranged on the table top of the workbench in a penetrating mode, a plurality of sets of chip removal holes are formed in the table top of the workbench and are close to the bridge-shaped clamping plate, a collecting hopper is arranged in an inner cavity of the workbench, and the collecting hopper is arranged between the two sets of clamping units and below the chip removal holes. And a recycling groove is formed in the lower wall of the inner cavity of the workbench, a collecting box is detachably arranged in the recycling groove, and the collecting box is arranged below the collecting hopper, so that the bolt clippers can be stably clamped, and meanwhile, waste chips generated in the milling process can be conveniently collected and cleaned.

The invention discloses a multi-dimensional compensation collaborative marine embarkation trestle hydraulic driving system, and belongs to the technical field of ocean engineering. In order to solve the problems that a traditional trestle is low in adjusting precision and poor in collaboration, the system achieves multi-dimensional compensation collaboration through a height adjusting mechanism, a power mechanism and a rotary adjusting assembly. The height adjusting mechanism drives a moving plate to move longitudinally through four electric push rods I to adjust the height of the bridge type support. The power mechanism extrudes hydraulic oil through the hydraulic push plate, and pushes the bridge type support to move transversely through the oil conveying flexible pipe I and the hydraulic cylinder I; the rotary adjusting assembly stretches out and draws back through differentiation of a hydraulic flow dividing box and a hydraulic cylinder II. According to the system, the change of an offshore environment is detected in real time through a sensor and monitoring equipment which are mounted on a trestle, a servo proportional valve with high precision and a hydraulic sensing system are adopted, a hydraulic system forms closed-loop control, the relative movement between a ship body and a platform is eliminated through six-degree-of-freedom real-time compensation, and the accidents of'kowtows' or'extrusion 'are avoided.