115516 results about "Hydraulic pressure" patented technology

The invention discloses a wind turbine generator hoisting construction tower drum operation system and a construction method thereof, and relates to the technical field of intelligent control. The problems that in the prior art, a static tension balance mechanism cannot restrain bending moment abrupt change, steel-concrete interface stress concentration causes microcrack propagation, the wave dynamic load compensation capacity is insufficient, and dynamic rigidity attenuation early warning is lacked are solved. Comprising a dynamic load prediction module, a multi-mode vibration suppression module, an offset compensation module and a digital twinborn decision module, a hoisting load is solved in real time through a multi-physics field coupling model and an improved time sequence deep learning algorithm, and interface crack propagation is suppressed in combination with traveling wave offset control and sweep frequency vibration. An improved Morison equation is adopted to drive a two-stage hydraulic servo to compensate a wave dynamic load, and a digital twin closed-loop correction mechanism is constructed based on a 5G URLLC protocol; the tower drum hoisting precision, the structural safety and the operation reliability under the complex working condition are remarkably improved.

The invention discloses a hydraulic pressure test tube machine and a tube body clamping centering device, in the tube body clamping centering device, two guide rods and a telescopic oil cylinder are arranged on a base side by side; corresponding ends of the two guide rods are respectively provided with a first sliding block, corresponding other ends of the two guide rods are respectively provided with a second sliding block; a fixed end of the telescopic oil cylinder is fixed on one end of the base, the fixed end of the telescopic oil cylinder is arranged corresponding to the second sliding blocks; a telescopic end of the telescopic oil cylinder is connected with the first sliding blocks, and is used for driving the first sliding blocks to slide along the guide rods, one of two clamping blocks is fixed on the two first sliding block, and the other one of the two clamping blocks is fixed on the two second sliding blocks; the first sliding block on one of the two guide rods is provided with a first rack, the second sliding block on the other one of the two guide rods is provided with a second rack, both sides of a linkage gear are respectively meshed with the two racks, the first sliding blocks and the second sliding blocks are adjusted by the telescopic oil cylinder to move towards each other or depart from each other. The scheme can solve the problems of high control precision and slow regulation efficiency of a plurality of oil cylinders of the tube body clamping centering device.

The invention provides a servo hydraulic system optimization control method and system for a press machine test platform, and relates to the technical field of press machines, and the method comprises the steps: building a state space expression and building a mathematical model of a servo hydraulic system based on dynamic characteristics by deducing mathematical expressions of all components of the system; building a predictive control algorithm based on the mathematical model, solving a quadratic programming problem by adopting a rolling optimization strategy through building a state space predictive model and determining a multi-objective optimization function to obtain an optimal control sequence, and taking a first element of the optimal control sequence as control input at the current moment; feedforward compensation and pressure feedback compensation are introduced, the feedforward compensation constructs a compensation model based on an inverse system of a press transfer function and pre-corrects a control signal, and the pressure feedback compensation designs a digital filter based on a pressure error, fuses a feedforward compensation signal with a pressure feedback compensation signal and superposes the fused signal with the control signal; and obtaining a final control signal.

The invention discloses a hydraulic motor fault diagnosis method and system based on heterogeneous asynchronous data fusion, and the method comprises the steps: collecting heterogeneous asynchronous data of a sensor network, carrying out the preprocessing of the data, inputting the data into a parallel dynamic pruning residual network, extracting features, and carrying out the preliminary fusion, thereby obtaining an initial feature plane; and inputting the initial feature plane into a multi-connection neural network, fusing data, extracting features, obtaining a final feature plane, using the fused feature data as a training set, and building a feature classification model to test and evaluate the performance of the feature classification model. According to the method, the limitation of a traditional fusion model in asynchronous processing of high-frequency vibration signals and low-frequency thermodynamic data of a hydraulic system is effectively overcome, the robustness of key fault features in a strong noise environment is remarkably improved, and rapid virtual-real mapping of bench test simulation data and online monitoring data is realized; typical faults such as plunger pair abrasion and valve plate cavitation of the hydraulic motor can be accurately supported, and safety guarantee is provided for equipment life prediction and safety control.

The invention provides a front end assembly, an endoscope and an endoscope hydraulic control system, and belongs to the technical field of endoscopes. The front end assembly comprises a front end base, a camera module and a pressure measuring mechanism, the camera module and the pressure measuring mechanism are both installed on the front end base, the pressure measuring mechanism comprises a piezochromic layer, the piezochromic layer is located at the circumferential position of the camera module, the piezochromic layer is made of a piezochromic material, and at least part of the piezochromic layer is located in an image acquisition area of the camera module. The front end seat is provided with the pressure measuring mechanism, and the pressure measuring mechanism is used for detecting the pressure around the front end assembly, so that the accuracy of pressure adjustment in a body cavity is improved, the hysteresis of pressure adjustment in the body cavity is reduced, the amplitude of pressure fluctuation in the body cavity is reduced, and the surgical risk is reduced; the pressure information in the body cavity is judged by observing the color information of the piezochromic layer in the image information collected by the camera module, an operator can adjust the pressure in the body cavity in time, and the overall operation is simple and convenient.

The invention discloses hydraulic machine equipment suitable for die forging and blank making of various flanges and a forging method, and belongs to the technical field of flange production equipment.The hydraulic machine equipment suitable for die forging and blank making of various flanges comprises a base and further comprises a top plate, the top plate is arranged on the upper side of the base, and a guide column is arranged between the top plate and the base; the first hydraulic oil cylinder is fixedly arranged on the top plate, and a piston rod of the first hydraulic oil cylinder is connected with a pressure head; all positions of the forge piece are sequentially arranged on the lower side of the pressing head through the swing mechanism, all positions of the forge piece are conveniently and evenly forged, workers do not need to shake the forge piece back and forth by utilizing a clamp or a clamp on the side, and when the pressing head moves upwards every time, the die holder is automatically separated and is matched with the air spraying opening to blow away waste chips generated in the die holder during forging and pressing of the forge piece; and excessive scraps are prevented from being accumulated in the die holder and being matched with the forge piece gradually filling the die holder again, the follow-up processing time of the flange forge piece is shortened, and the flange processing efficiency is improved.

The invention relates to the technical field of intelligent vehicle control, in particular to a loader vehicle control method and system, computer equipment and a storage medium. The method comprises the following steps: collecting multi-modal data of the loader, wherein the multi-modal data comprises working environment data, dynamic load state data and vehicle attitude data of the loader; constructing a three-dimensional operation scene digital twinborn model based on the multi-modal data, and predicting vehicle stability influence data of the influence of the load change on the vehicle stability based on the dynamic load state data; based on the digital twinborn model of the three-dimensional operation scene and the vehicle stability influence data, a dynamic control strategy is generated by utilizing a reinforcement learning algorithm, and cooperative actions of steering, lifting and walking mechanisms are synchronously optimized; according to operation environment data and a dynamic control strategy, hydraulic system pressure and motor torque distribution are adjusted in a self-adaptive mode, and operation efficiency and safety are ensured.

The invention belongs to the technical field of radial forging machine control, and particularly relates to a high-precision radial forging machine control system and a control method thereof.The method comprises the steps that a technological parameter database is established, dynamic parameters in the forging process are synchronously collected through a multi-source heterogeneous sensor, and workpiece surface temperature field distribution is obtained through an infrared thermal imager; measuring radial deformation through a laser displacement sensor group, and capturing internal defect characteristics of the material by using an acoustic emission sensor; the optimal forging frequency is calculated according to real-time material rheological characteristics, and a model predictive control algorithm is adopted to generate hammerhead motion trail correction; dynamic compensation control is implemented, and the back pressure of the hydraulic system is adjusted through strain rate feedback; and closed-loop quality evaluation is executed, online metallographic analysis is carried out in the forging intermittent period, process parameters are reversely corrected according to the grain size detection result, the fatigue life of the workpiece is predicted based on a digital twin model, and the effects that the whole forging process is dynamically controlled in real time, errors and deviation are effectively eliminated, and the forging precision is improved are achieved.

The present invention belongs to the technical field of coal mine drilling rigs, and relates to an intelligent directional coal mine drilling rig and a drilling method thereof. The intelligent directional coal mine drilling rig comprises a moving platform, a frame, a clamping device, a main manipulator, a power head, a drill pipe storage system, a control system and a hydraulic system. The present invention improves the structure of a power head by providing an angle adjuster having accurate angle adjusting and anti-rotation locking functions on the side of a transmission away from a main motor, a driving shaft in the transmission connecting the main motor and the angle adjuster; in addition, the control system comprises a tool face angle measurement and initialization system. Therefore, by means of cooperation between the tool face angle measurement and initialization system and the angle adjuster, the present invention solves the problems that drilling rigs in the prior art lack special tool face angle adjusting devices and thus have low precision and efficiency in trajectory adjustment and have difficulty in achieving automatic directional drilling.

A brake system includes a reservoir and a motor-driven master cylinder for actuating a plurality of wheel brakes. A secondary power transmission unit provides pressurized hydraulic fluid at first and second PTU outputs for actuating the wheel brakes in at least one of a normal non-failure braking mode and a backup braking mode. The secondary power transmission unit includes an electric PTU motor and at least two pump pistons. At least two brake pressure sensors are provided. Each brake pressure sensor is located directly adjacent a corresponding wheel brake for sensing hydraulic pressure at the corresponding wheel brake and responsively producing a brake pressure signal. An electronic control unit is provided for controlling at least one of the secondary power transmission unit and the master cylinder responsive to at least one brake pressure signal. The secondary power transmission unit is directly fluidly connected to the reservoir.

The invention relates to the technical field of data processing, in particular to an intelligent mine pressure analyzing and monitoring method based on machine learning, and the method comprises the steps: collecting the pressure data of any hydraulic support, and obtaining a pressure data sequence; obtaining a plurality of pressure subsequences according to maximum value data and minimum value data in the pressure data sequence; target pressure subsequences are screened, the pressure deviation degree of each target pressure subsequence is obtained, and a pressure deviation degree sequence is formed; performing STL decomposition on the pressure deviation degree sequence to obtain a corresponding trend term sequence, and obtaining a pressure anomaly index according to the trend term sequence; the method comprises the following steps: acquiring pressure anomaly indexes of all hydraulic supports, performing mine pressure anomaly monitoring and early warning according to the pressure anomaly indexes of all the hydraulic supports, taking pressure data between maximum value data and minimum value data as periodic pressure data, and performing mine pressure anomaly monitoring according to the pressure data change amplitude difference of multiple pieces of periodic pressure data. And the abnormity monitoring accuracy is improved.

The present invention relates to a coal mine intelligent directional drill and its drilling method, belonging to the technical field of coal mine drills. It comprises a moving platform, machine frame, clamper, main manipulator, power head, drill pipe storage system, control system, and hydraulic system. The power head structure is improved by adding an angle adjuster with accurate angle adjustment, locking, and anti-rotation functions. The angle adjuster is positioned on the gearbox side opposite the main motor, connected via a driving shaft. The control system includes a toolface azimuth detection and initialization system that works with the angle adjuster. This solves prior issues such as the absence of specialized toolface azimuth adjustment devices, low precision, low track adjustment efficiency, and challenges in achieving automatic directional drilling in the prior art. The invention enhances precision and efficiency, enabling automated, intelligent directional drilling.

The invention relates to the field of tower building machines, and discloses a structural curtain wall construction integrated aerial tower building machine for building an airport control tower, which comprises building equipment for building the control tower, the building equipment is erected outside the control tower, the control tower is fixed on the ground through a reinforced foundation, and the building equipment is fixed with the surface of the control tower through a wall attaching piece in the process of building the control tower. In order to greatly improve the construction efficiency, the structural curtain wall construction integrated aerial tower building machine for airport tower building ingeniously integrates multiple innovative designs, the core of the structural curtain wall construction integrated aerial tower building machine is a dynamically-adjusted lifting system, and the system is formed by connecting two lifting frame single bodies arranged up and down through a hydraulic air cylinder; the distance between the tower building machine and the tower crane can be flexibly adjusted so as to adapt to continuous change of the height of the control tower, the tower building machine can be synchronously lifted along with lifting of the control tower through the design, the tedious process of frequent disassembly and reinstallation in a traditional building mode is avoided, and the construction efficiency is remarkably improved.

In various embodiments, an automated platform may autonomously move around a site, loading dock, dock leveler, and / or trailer to transport goods. In one or more embodiments, the automated platform may be loaded with goods and, once loaded, navigate a path from a loading area onto a trailer autonomously. In some embodiments, once the automated platform is loaded onto the trailer, the automated platform may utilize hydraulics to extend legs to the ground with enough force so that the automated platform wheels are not touching the ground in the trailer, which stabilizes the automated platform while it is being hauled to a different site. In at least one embodiment, once the trailer is at the different site, the automated platform may autonomously unload itself out of the trailer and navigate over a dock leveler, through the loading dock, and to an unloading area.

According to some embodiments, a skin treatment system comprises a manifold assembly comprising at least one fluid connector to secure at least one treatment fluid container, a primary handpiece configured to hydraulically couple to the manifold assembly, wherein the primary handpiece is hydraulically coupled to the manifold assembly using at least one fluid conduit, and a flow control device positioned along the at least one fluid conduit, the flow control device configured to switch flow of treatment fluid from the at least one treatment fluid between the primary handpiece and a port, wherein the port is configured to be coupled to a secondary handpiece, wherein a vacuum source is configured to operatively couple to the system and selectively create suction along the primary handpiece.

The invention provides an injection molding machine mold opening and closing parameter optimization method and system oriented to energy conservation and efficiency improvement, and relates to the technical field of industrial process intelligent control. The method comprises the steps that mold temperature, hydraulic pressure and vibration signals are collected in real time through a multi-source sensor, and a composite optimization target of a dynamic energy consumption coefficient and a process stability index is constructed; an improved multi-target genetic algorithm is adopted to iteratively generate a candidate parameter set meeting energy consumption and stability constraints, and the algorithm fuses hydraulic system safety boundary dynamic constraints and an adaptive variation strategy; a parameter adjustment effect is rehearsed through a digital twin model, and motion track deviation is calibrated online in combination with a recursive least square method, so that parameter dynamic injection is realized; and triggering abnormal working condition recovery and material self-adaptive optimization based on a closed-loop feedback mechanism. The system comprises a multi-source data acquisition module, a composite optimization calculation module, a dynamic parameter injection module and a closed-loop feedback control module, and the real-time performance and generalization ability are improved through an FPGA hardware acceleration optimization engine and a transfer learning algorithm.

A brake system includes a master cylinder generating pressure at first and second MC outputs for actuating first and second pairs of wheel brakes. A secondary brake module is configured to provide fluid at first and second PTU outputs for actuating the wheel brakes. The secondary brake module includes an electric motor configured to selectively pressurize the hydraulic fluid by transmitting rotary motion to at least two pump pistons. A pump inlet attenuator is interposed hydraulically between a reservoir and the pump pistons and in direct fluid connection with the reservoir via a single return line. An electronic control unit controls at least one of the secondary brake module and the master cylinder responsive to a brake pressure signal. The pump inlet attenuator regulates pressure in the single return line to reduce pressure fluctuations at an inlet side of each pump piston via solely mechanical pressure attenuation.

A joint simulation and operation operability evaluation method based on wind power operation and maintenance ship motion dynamic response and active compensation gangway ladder motion control comprises the steps that an operation and maintenance ship frequency domain seakeeping model is built, and a hydrodynamic coefficient library is calculated; wave exciting force is reconstructed based on a Cummins time domain motion equation, and ship motion response prediction is realized by adopting implicit generalized alpha time domain composite integral; the dynamic positioning system extracts low-frequency motion through a Kalman filter and optimizes thruster thrust distribution to stabilize the position of the ship. A gangway ladder dynamic model is established based on a Lagrange equation, real-time control over displacement, speed and acceleration of the top end of the gangway ladder is achieved through a feedforward-feedback composite control strategy, and nonlinear output of a hydraulic actuator is optimized. And realizing joint simulation of the coupling system through time domain synchronization and self-adaptive PID (Proportion Integration Differentiation) control. And checking gangway ladder movement based on a preset threshold value and a space boundary condition, and evaluating the operability of the climbing operation. According to the method, the limitation of traditional single-disciplinary analysis is broken through, and the forecasting precision of wind power operation and maintenance operation operability is effectively improved.

The utility model relates to the technical field of hydraulic pipe welding, and discloses a pipeline welding device with a positioning structure, which comprises a base, an annular frame is fixedly mounted on the upper surface of the base, a sliding block is slidably connected to the inner wall of the annular frame, a welding gun is fixedly mounted at the top of the sliding block, and the positioning structure is fixedly mounted on the welding gun. According to the pipeline welding device with the positioning structure, six sets of clamping jaws can synchronously rotate and get away from one another by pushing a lantern ring to be matched with a connecting rod, at the moment, a hydraulic pipe can be placed among the six sets of clamping jaws, and then the lantern ring is loosened to be matched with a spring and the connecting rod to enable the six sets of clamping jaws to synchronously rotate and get close to one another; and meanwhile, the hydraulic pipe can be clamped through cooperation with the rubber block, so that positioning of the hydraulic pipe is completed, through the clamping mode of the lantern ring, the connecting rod, the clamping jaw and the rubber block, the pipeline can be rapidly positioned, and the hydraulic pipe clamp can be suitable for hydraulic pipes with different pipe diameters and is more convenient to use.

The invention belongs to the technical field of metal processing and forming, and particularly relates to seamless metal composite pipe rolling equipment with a multi-fulcrum guide plate adjusting device and a method. The multi-fulcrum guide plate adjusting device comprises an adjusting hydraulic cylinder, a base end cover, a sliding block seat, a sliding block seat pressing plate, a push rod, a Y-shaped connecting frame, a guide plate, a pin shaft, a pin shaft baffle, a sliding block seat end cover, a locking seat, a locking hydraulic cylinder, a universal coupling and an adjusting rod. The guide plate is accurately controlled through the adjusting hydraulic cylinder and the locking hydraulic cylinder to achieve up-down, autorotation, swinging and other multi-freedom-degree position adjustment, the device can be suitable for rolling processes with different working condition requirements, the guide plate does not need to be replaced many times, rolling can be conducted only by adjusting the guide plate, and after the guide plate works for a long time and is abraded, the service life is prolonged. Abrasion loss can be compensated by adjusting the position of the guide plate, and production efficiency is improved; and meanwhile, the push rod and the adjusting rod are clamped and locked through the locking hydraulic cylinder, and it is guaranteed that the multi-fulcrum guide plate adjusting device has enough strength in the rolling compounding process.

The invention discloses a hydraulic system throttling control method based on a hydraulic control one-way valve, which relates to the technical field of throttling control, and comprises the following steps of: in an initialization stage of starting a hydraulic system, setting an optimal initial throttling opening for a throttling valve based on flow data of current oil; the method comprises the following steps: performing high-frequency real-time acquisition on flow state data of oil through a sensor deployed at the upstream of a throttling area, and establishing a set of flow state data system based on a time sequence; continuously collected flow state data are divided according to time windows, and an analysis set of oil flow data is constructed. According to the method, the dynamic flowing state of oil is monitored and deeply analyzed in real time, the load state is intelligently predicted in combination with a support vector machine model, and the opening degree of the throttling valve is adjusted in real time; the problems that in the prior art, response of a throttling control strategy to a high-load working condition is delayed, and oil temperature rise and viscosity abnormal reduction are caused by serious local pressure loss of a throttling area are effectively solved.

The invention discloses a bending machine capable of meeting different bending requirements and a using method, and relates to the technical field of bending machines, the bending machine comprises bending machine equipment, the bottom end of the interior of the bending machine equipment is fixedly connected with a bending mold, the top end of the interior of the bending machine equipment is provided with a bending knife, and the top end of the interior of the bending machine equipment is fixedly connected with a hydraulic telescopic cylinder; the output end of the hydraulic telescopic cylinder is fixedly connected with the bending knife, the spraying range of the spray head on the outer side of the lubricating pipe is adjusted according to the size of a workpiece, the bending position of the workpiece is lubricated, finally, the hydraulic telescopic cylinder is started, the bending knife is pushed by the hydraulic telescopic cylinder to descend, and therefore the workpiece is bent, and it is guaranteed that in the plate bending process, the bending efficiency is improved. Friction resistance can be reduced through lubrication, so that the bending process is smoother, and the device can be suitable for bending plates of different sizes.

The invention relates to the technical field of mechanical arm control, and particularly discloses a multi-axis motion control method based on a six-axis hydraulic mechanical arm, and the method comprises the following steps: establishing a kinetic model and a hydraulic system model of the six-axis hydraulic mechanical arm, generating a motion track in a Cartesian space or a joint space based on a preset task demand, and generating a multi-axis motion model of the six-axis hydraulic mechanical arm; the track smoothness is optimized through an S-type acceleration and deceleration algorithm; a deviation coupling synchronous control strategy is adopted, and position, speed and pressure signals of all hydraulic cylinders are collected in real time. According to the multi-axis motion control method based on the six-axis hydraulic mechanical arm, through multi-layer modeling, multi-algorithm fusion and intelligent optimization, the core problems of synchronous errors, non-linear interference, high energy consumption and the like in multi-axis cooperative control of the hydraulic mechanical arm are solved, high-precision, high-robustness and low-energy-consumption industrial-grade motion control is achieved, and the multi-axis motion control method is suitable for industrial production. The method is suitable for heavy-load carrying, precision assembling and other complex scenes.

The invention belongs to the field of electromechanical control, relates to an electric pump work control technology, and discloses an electric pump work comprehensive control method and system.The work comprehensive control method comprises the steps that onboard state signals, flight control system state signals and hydraulic pressure of each sub hydraulic system in a hydraulic system are collected in real time; starting and stopping of an electric pump connected to the hydraulic sub-system are controlled through a first electric pump control logic and an anti-error working mechanism according to the onboard state signal; and according to the flight control system state signal, the hydraulic pressure and other electric pump control instructions, the electric pump connected to each sub hydraulic system is automatically controlled through second electric pump control logic, an anti-error working mechanism and a time-staggered working mechanism. The working accuracy of the electric pump can be ensured, meanwhile, system damage caused by simultaneous starting of the electric pump is avoided, and the system safety is improved.

The invention relates to the technical field of fabric detection, in particular to a textile fabric tensile property detection device which comprises a base, a base is fixedly connected to the outer wall of the top end of the base, a top plate is fixedly connected to the inner wall of the top of the base, and a hydraulic rod is mounted on the outer wall of the top end of the top plate; one end of a piston rod of the hydraulic rod is fixedly connected with a clamping frame; according to the device, wrinkles can be treated in advance before fabric tensile property detection, the situation that the wrinkles exist due to improper operation affect detection data of the tensile property is prevented, the clamping frame arranged in the cross shape is matched with the four upper clamping plates and the four lower clamping plates, the fabric can be stretched in the upper, lower, left and right directions at the same time, and the detection data are more accurate; the clamping frame is controlled by the hydraulic rod to descend firstly, and then the threaded rod is driven to rotate under the linkage action of meshing of the limiting plate and the rack, so that the structural synchronism is higher, the detection convenience is enhanced, the data error is reduced, and the detection efficiency of the tensile property of the textile fabric is improved.

The invention relates to the field of steel structure building construction, in particular to a large-span steel structure assembling device and a construction method thereof.The large-span steel structure assembling device comprises a hoisting mechanism, an assembling jig frame, a clamping mechanism, a lifting mechanism, a fine adjustment mechanism and a sliding mechanism; the steel plates are conveyed into a factory area to be assembled, so that the construction period is greatly shortened; through mutual cooperation of the fine adjustment mechanism and the lifting mechanism, after the large-span steel structure is moved to a designated position, the four jig stand columns and the steel columns are leveled, so that bottom plates of the four steel columns of the pre-assembled large-span steel structure can abut against a concrete base at the same time; and the problems that installation is not accurate due to the height difference of the four large-span steel structures, and the concrete base is impacted due to the fact that the hydraulic thruster descends greatly are solved.

The invention relates to a split type electro-hydraulic direct-driven non-retractable fin stabilizer hydraulic system which comprises a hydraulic unit and an actuating mechanism which are independently arranged, and the actuating mechanism comprises fin rotating oil cylinders which are symmetrically arranged; a bidirectional hydraulic pump driven by a servo motor forms a closed fin rotating loop; the bidirectional hydraulic pump driven by the servo motor, the hydraulic unit and the actuating mechanism form an electro-hydraulic direct-drive fin stabilizer device; the control loop is composed of a gyroscope, a controller and an executing mechanism, and the gyroscope detects the rolling angular velocity of the ship and generates a fin rotating instruction signal; the controller compares the instruction signal with the fin angle feedback signal and outputs a servo motor rotating speed instruction; the servo driver controls the servo motor to rotate forwards and backwards, the bidirectional hydraulic pump is driven to adjust the displacement of the fin rotating oil cylinder, and therefore the fin is driven to rotate. A valve control or pump control type hydraulic system adopted by a traditional fin stabilizer is replaced, integrated optimization, light weight, high efficiency, high reliability and low noise of the fin stabilizer hydraulic system are achieved, and the occupied space of equipment is reduced.

The utility model relates to the technical field of model tests, and discloses a landslide damage simulation test device which comprises a model test box, a rainfall frame, a hydraulic assembly, a plurality of spraying assemblies, a water tank assembly and a constant temperature system. The angle of the landslide model box can be adjusted through the hydraulic machine so as to change the slope of a model test landslide soil body; the multiple spraying assemblies are arranged at the top of the rainfall frame and located over the model test box, the output ends of the spraying assemblies aim at a test soil body in the model test box, the influence of rainfall on landslide slippage is simulated by adjusting the spraying size, and the constant temperature system is arranged at the top of the model test box and used for regulating and controlling the temperature of the test soil body. The constant temperature system is used for measuring the influence of the dry-wet cycle effect on the landslide soil body.

The invention provides a self-adsorption type air pipe flange bolt screwing main body device and a control method. The device comprises a capturing module, a driving module, a recognition module, an adsorption module and a centralized control platform. Under comprehensive control of a centralized control platform, the device is adsorbed and fixed to the surface of the air pipe through the adsorption module, the capturing module drives a hydraulic rod through a driving motor, movement control over upper and lower clamping plates is achieved, the clamping plates clamp an air pipe flange, and the overall stability of the device is further improved. The recognition module collects relative position information of the device and a flange bolt hole in real time through a camera, the distance between the bolt hole and the device is accurately detected through an ultrasonic transmitting device, and then the movement distance of the device is dynamically adjusted in cooperation with the driving module. Through assembly type combined installation of multiple functional modules, automatic walking, precise positioning and stable screwing of the device on the surface of an air pipe are achieved, a mechanical arm is not needed, the device can be flexibly suitable for vertical air pipe flanges of different heights, the occupied space is small, and the scene applicability is good.

The invention discloses a device for intelligently monitoring interference assembly of a rotary table in real time and an assembly method, and relates to the technical field of interference mechanical assembly.The device comprises a working plate and further comprises a fastening device.An assembly frame is fixedly installed at the top of the working plate, and a stabilizing rod fixedly penetrates through the inner wall and the outer wall of the assembly frame; displacement equipment is slidably mounted on the circumferential surface of the stabilizing rod, hydraulic equipment is fixedly mounted on the front side of the displacement equipment, sensing equipment is fixedly mounted on the front side of the displacement equipment, a diamond block is arranged at the bottom of the hydraulic equipment, and the fastening device comprises a detection groove, a detection rod, a detection plate, a placement hole, a placement rod, a U-shaped rod and an elastic telescopic block. The U-shaped rod cannot continuously move in the direction close to the positioning plate, so that the placing rod cannot continuously move, the placing rod cannot continuously move, so that the output end of the electric push rod cannot continuously move, and the precision in the assembly process can be improved by ensuring that the clamping force is always in a proper range.