95 results about "RO vessels" patented technology

The invention relates to the technical field of ship assembly, in particular to a roll-on-roll-off ship side door mounting method which comprises the steps of marking a datum line of a door plate, determining the position of a first hinge eye plate and checking and adjusting the first hinge eye plate. The perpendicularity of the first hinge eye plate, the position of the first hinge eye plate and the concentricity between shaft holes of the first hinge eye plate of the multiple sets of hinge structures are checked, the first hinge eye plate and the door plate are welded, the datum line of the door frame is marked, the position of the second hinge eye plate is determined, and the second hinge eye plate is checked and adjusted; the perpendicularity of the second hinge eye plates, the positions of shaft holes of the second hinge eye plates and the concentricity of the shaft holes of the second hinge eye plates of the multiple sets of hinge structures are checked, the second hinge eye plates and the door frame are welded, the door plate is hoisted to the door frame, the first hinge eye plates and the second hinge eye plates are aligned, and bolts are installed. According to the roll-on-roll-off ship side door mounting method, the hoisting frequency is reduced, the assembling time is shortened, and the side door assembling efficiency is improved.

The invention discloses a fire simulation method, device, equipment and medium for a new energy vehicle roll-on and roll-off place, and the method comprises the steps: building an accurate fire risk simulation evaluation model, setting a roll-on and roll-off place vehicle mixed transportation and partition transportation fire scene model, and carrying out the simulation of a new energy vehicle on the basis of temperature distribution, thermal radiation intensity and other key data. According to the method, the fire spreading condition of the electric vehicle under different transportation strategies is simulated, then the effectiveness of the transportation strategies is evaluated, the roll-on-roll-off ship transportation strategies are formulated according to the vehicle power mode, a scientific basis is provided for formulating reasonable roll-on-roll-off site transportation strategies and emergency response measures, and therefore the safety of the new energy vehicle roll-on-roll-off site is improved.

The present utility model relates to the field of roll-on / roll-off apparatuses. Disclosed is an airtight door for a passage apparatus of a roll-on / roll-off ship, the airtight door comprising an inclined ramp, a door body and a horizontal passage, wherein the door body is arranged between the inclined ramp and the horizontal passage; the door body is hinged to the horizontal passage by means of a hinge having an oblong hole; a sealing assembly is provided on the door body; a door frame is provided on the horizontal passage; the door body and the door frame are arranged to fit each other, and the door body and the door frame are both obliquely arranged; a push-pull device is mounted in the horizontal passage; a slider is connected to one end of the push-pull device; and a support connecting rod is hinged to the slider, and the support connecting rod is hinged to the door body. The airtight door for a passage apparatus of a roll-on / roll-off ship provided in the present utility model can make full use of the door's own weight to perform compression sealing, has strong airtightness and a good sealing effect, is safe, stable and reliable, has a simple structure, and is easy to maintain; besides this, the airtight door achieves a design without a door sill raised from the ground, does not hinder the passage of vehicles or the transport of goods, and has strong applicability.

The invention relates to the technical field of intelligent traffic simulation and heavy vehicle cooperative control, and discloses an intelligent cooperative control simulation verification system for a tractor or a trailer, which comprises three modules and four modules: a three-dimensional environment modeling module based on multi-source data fusion and hierarchical modeling and combined with a timing and event double-trigger mechanism to update dynamic obstacles; the cooperative motion control module integrates Bezier trajectory planning, a geodesic theoretical dynamics coupling model and triangular collision detection, and realizes vehicle-towing cooperation and risk early warning. The visual simulation interaction module constructs a multi-window view based on OpenGL / Unity 3D, and simulates light and shadow and friction characteristics in combination with material attributes; the result verification module outputs a conclusion based on the quantitative index and the qualitative report. According to the system, the goodness of fit between a simulation environment and a real scene is remarkably improved, the collision early warning response is less than or equal to 100ms, more than 80% of roll-on-roll-off ship scenes can be covered, the entity test cost is reduced by 60%, and a high-fidelity verification tool is provided for vehicle-tow intelligent cooperation.

The invention provides a test method of an automobile roll-on-roll-off ship stern ramp load monitoring system, and the method comprises the steps: opening a stern ramp of an automobile roll-on-roll-off ship through the traction of a steel wire rope, so as to enable the stern ramp to be in contact with a wharf; starting a load monitoring system, and carrying out at least one of the following tests based on the mode that the module vehicle bears the weight: detecting whether the load monitoring system is activated or not under the condition that the total weight of the module vehicle bearing the weight reaches a first preset threshold value; detecting the accuracy of monitoring the tension of the steel wire rope by the load monitoring system; detecting whether the upper limit of the bearing weight of the stern ramp reaches a second preset threshold value or not based on the load monitoring system; namely, crane resources are saved through the mode that the module vehicle bears the weight, the testing efficiency is improved, the influence on the wharf production cycle is reduced, and meanwhile the problem that load adjustment operation is inconvenient is solved.

The utility model belongs to the technical field of ships, and discloses a binding bowl marking device for an automobile roll-on-roll-off ship, which comprises a base, a piston rod, a marking push plate and a device main body, the base is mainly composed of a protective cover, a sleeve and a round pipe. One end of the piston rod is provided with the scribing push plate, and the upper part of the piston rod is provided with threads; an ink guide through hole is formed in the scribing push plate, a sponge ink fountain is arranged on one side of the scribing push plate, an ink absorption sponge is arranged in the sponge ink fountain, and a sponge head connected with the ink absorption sponge penetrates out of the ink guide through hole to the other side of the scribing push plate; a circular tube hole is formed in the marking push plate and is matched with the circular tube; the device body is mainly composed of a stainless steel pipe, an upper handle, a lower handle and a horizontal ruler. Two ends of the stainless steel tube are respectively fixed with the base and the lower handle; the piston rod sequentially penetrates through the sleeve, the stainless steel pipe and the lower handle to be connected with the upper handle. The device reduces invalid labor, is simple and convenient to operate, prevents the sponge head from falling off, and is high in working efficiency.

The application discloses a kind of static water pressure loading methods of automobile roll-on / roll-off ship under broken compartment condition, at least including as follows: broken compartment water line is expressed using function segmentation under broken compartment condition at a transverse section;Broken compartment water line is cut into several segments in longitudinal direction under broken compartment condition;The method of finite element is segmented to apply static water pressure under broken compartment condition.The main problem of simulating the correct broken compartment water line under broken compartment condition is solved, so as to accurately check the structural strength of watertight deck;The operation of conventional application method is conservative, which causes the broken compartment pressure to be greater than the actual value, resulting in the unreasonable increase of structure, and the broken compartment water line simulation is accurate in the application, and the structure arrangement is reasonable.

The invention relates to a thermal runaway emergency device for a new energy automobile battery transported by a roll-on-roll-off ship and a handling method thereof. A wireless temperature sensor is arranged in an early warning system; the controller is electrically connected with the early warning system; an early warning vehicle battery thermal runaway emergency device is arranged in the early warning system; early-warning vehicle battery thermal runaway prevention is conducted on the early-warning vehicle; a thermal runaway emergency device of the roll-on-roll-off ship is arranged in the early warning system; components in at least one thermal runaway emergency device of the roll-on-roll-off ship are also electrically connected with the early warning system. A battery thermal runaway signal is sent out, after data transmitted by the wireless temperature sensor is judged, fire disaster situation judgment is carried out, and then the early warning vehicle battery thermal runaway emergency device and the roll-on-roll-off ship thermal runaway emergency device are controlled to carry out different emergency treatments; meanwhile, according to the emergency disposal method, disposal is carried out, and the technical problem that in the prior art, thermal runaway of a land scene or a fixed energy storage battery is mostly aimed at and technical scheme lacks is solved.

The invention relates to a portable cargo fire cooling device for a roll-on-roll-off ship and a use method of the portable cargo fire cooling device. A temperature signal generator is arranged on cargoes; the central control system is wirelessly connected with the temperature signal generator; the temperature signal generator sends an early warning signal to the central control system; the central control system automatically controls the water spraying device to cool discharged water; the water spraying device is arranged on the portable water spraying support device, and the central control system controls an automatic switch of the water spraying device. The cargo fire cooling device for the roll-on-roll-off ship solves the problems that in the prior art, a cargo fire cooling device for the roll-on-roll-off ship is fixed to a fixed place, vehicles or cargos are evenly arranged on each deck, and the existing cargo fire cooling device for the roll-on-roll-off ship is fixed to the fixed place, so that arrangement is unreasonable, adjustment cannot be conducted according to position needs, and the cost is high. And the technical problems of no convenient function and timeliness are solved.

The application belongs to the technical field of ships, and discloses a watertight device installation method for a ramp and a roll-on / roll-off ship. The installation method adopts a zoned and stepped measurement operation mode. First, the pre-installation of the movable ramp is completed by means of external hoisting equipment. The installation position and the glue pressing amount of the watertight device in the stable area of the ramp without sinking deformation are detected. Then, the overall debugging of the ramp is completed by using the lifting device of the ship deck. The parameter measurement of the remaining area is carried out. Compared with the traditional one-time overall measurement by using external hoisting equipment, the measurement error caused by the deformation of the movable ramp is avoided. The accuracy of the installation position and the glue pressing amount of the watertight device is ensured. The subsequent repeated rectification and debugging process is avoided. The repeated investment of manpower and material resources is greatly reduced. The time-saving and labor-saving effect is realized. The overall construction period is effectively compressed. The installation and construction efficiency of the watertight device of the movable ramp of the roll-on / roll-off ship is significantly improved.

The utility model discloses a smooth running transition mechanism for a stern door and a fixed ramp of a roll-on-roll-off ship, which comprises a transition mechanism body and a guide mechanism, one end of the transition mechanism body is rotatably connected with the stern door, and the other end of the transition mechanism body is lapped on the fixed ramp when the transition mechanism is used. The guide mechanism is fixed to the end, close to the stern door, of the fixed ramp, an inclined section is arranged on the lower end face of the transition mechanism body, the inclined section inclines downwards relative to the upper end face of the transition mechanism body from the end, close to one side of the fixed ramp, of the lower end face, and a sliding mechanism is arranged on the inclined section. The upper end face of the guide mechanism is an inclined face which inclines downwards relative to the horizontal plane from the end of the side, close to the stern door, of the fixed ramp, and the sliding mechanism slides on the guide mechanism. The smooth running transition mechanism for the stern door and the fixed ramp of the roll-on-roll-off ship can meet the requirements of smooth running, rolling storage and convenient maintenance at the same time.

A methods and systems of fumigating a vessel include delivering fumigant to a cargo area of the vessel. In particular, the vessel may be a roll-on / roll-off vessel. In such a system, an air pressure system is provided for maintaining a selected minimum pressure differential between a selected area of the vessel above the cargo area and the cargo area, such that pressure of the selected area is greater than the cargo area. A control system may maintain the pressure differential.

The invention discloses a roll-on-roll-off ship building method based on a datum line, the datum line comprises a roll-on-roll-off system datum line and a ship body datum line, the roll-on-roll-off system datum line at least comprises installation datum lines of a stand column, a movable deck, a stern door, a side door and a ramp, and the roll-on-roll-off ship building method based on the datum line comprises the steps that in the segmentation stage of a roll-on-roll-off ship, the installation datum lines of the stand column, the movable deck, the building of stand columns, movable decks, stern doors, side doors and ramps is completed; determining a datum line of the roll-on and roll-off system; determining a hull datum line according to the roll-on-roll-off system datum line And building is completed according to the roll-on-roll-off system datum line and the hull datum According to the method, the ship body datum line is determined according to the roll-on-roll-off system datum line, so that the roll-on-roll-off system datum line and the ship body datum line are combined to form a unified whole, the rework and adjustment time caused by installation deviation can be effectively shortened, and the construction efficiency can be remarkably improved. And the datum line penetrates through all the construction stages, closed-loop management is formed, and the later debugging and maintenance cost is reduced.

The invention discloses an intelligent safety monitoring system for entry and exit of a roll-on-roll-off ship, which comprises a central control unit, a cab operation unit and a ship entry point on-site operation unit, and is characterized in that the ship entry point on-site operation unit comprises a system activation module, a system closing module and a warning module; the system activation module and the system closing module are respectively used for activating and closing the ship-shore information transmission system, the cab operation unit comprises a system activation display module, a system closing display module and an activation warning module, and the system activation module is in digital communication connection with the system activation display module through a cable by virtue of the central control unit. The system closing module is in digital communication connection with the system closing display module through the central control unit and a cable, and the activation warning module is in digital communication connection with the warning module through the central control unit and a cable. According to the intelligent safety monitoring system for entering and leaving the port, automatic information transmission is achieved, the communication time is greatly shortened, and the accuracy and timeliness of information transmission are improved.

A portable railing for a movable deck of a roll-on / roll-off ship, the portable railing comprising a post (1), a bottom plate (2), a movable plate (3) and a pin (4), wherein the post (1) is provided with a snap-fit slot (11), the post (1) is inserted into a lashing hole (51) arranged in a movable deck (5), and the snap-fit slot (11) is snap-fitted onto the edge of the lashing hole (51); the bottom plate (2) is fixed to the post (1), the bottom plate (2) is arranged on the movable deck (5), and the bottom plate (2) is provided with a limiting hole (21); the movable plate (3) is movably connected to the post (1), and the movable plate (3) and the post (1) can move relative to each other; and the pin (4) is fixed to the movable plate (3), and the pin (4) is inserted into the limiting hole (21) and the lashing hole (51) in sequence. The railing has a simple structure, is convenient to mount and dismount, does not need to be provided with a conventional protruding railing base structure on the deck, does not affect the passage of vehicles, and can improve the efficiency of loading and unloading.

The present invention relates to the technical field of ship bracket equipment, and in particular to a roll-on / roll-off ship bracket device, comprising a load-bearing bracket, a bracket beam arranged on the front and rear sides of the load-bearing bracket, a side arc bracket arranged above the bracket beam, a receiving block arranged on the lateral sides of the side arc bracket, a middle arc bracket arranged in the middle of the top surface of the load-bearing bracket, and a linear motion execution device for driving the side arc bracket on the receiving block to move up and down, wherein the linear motion execution device adjusts the cone-shaped petal tower to move up and down, so that the tower is parallel to the top surface of the load-bearing bracket, and the bottom surface of the tower will contact and fit with the various middle arc brackets on the top surface of the load-bearing bracket. This structure supports the middle position of the tower and has better lateral support, which solves the technical problem that the existing bracket supports the front and rear end positions of the cone-shaped petal tower, resulting in the risk of side slipping and falling when the ship is transported on a bumpy road section, and the ship is prone to sliding back and forth when it stops suddenly.

This invention provides a vehicle collision avoidance system for roll-on / roll-off (Ro-Ro) ships, comprising a deck, collision guardrails, multiple lifting cylinders, and a collision avoidance system housing. A collision guardrail receiving opening is provided on the deck. The collision avoidance system housing is a hollow structure with an open upper surface, its upper end fixedly connected to the lower surface of the deck. Multiple collision guardrail support plates are symmetrically fixed inside the housing. A downwardly recessed collision guardrail receiving groove is provided on the upper surface of each support plate. The collision guardrails and support plates are hinged together with a 90° rotational angle. Multiple lifting cylinders are symmetrically spaced within the collision guardrail receiving grooves. The closed end of each lifting cylinder is hinged to the lower end of the inner wall of the housing, and the outer end of the cylinder shaft is hinged to the lower surface of the collision guardrail. This vehicle collision avoidance system for Ro-Ro ships effectively prevents loaded vehicles from shifting during navigation, thus avoiding damage to the ship's structure or other vehicles, and preventing significant property loss.

The utility model belongs to the technical field of deck turning and hoisting device of automobile roll on / off ship, including hoisting beam and two hoisting structures, the top both sides of hoisting beam are fixedly installed with hanger, the inside of hoisting beam is provided with moving structure, through hoisting structure, when hoisting and turning deck of automobile roll on / off ship, first, the buckle is inserted into the lifting lug, and is locked through the first pin and the first locking nut, then the deck edge is inserted into the two chuck interiors, and the edge hole is aligned with the fixed hole, and is fixed through the second pin inserted into the fixed hole and the deck hole after using the second locking nut, thereby hoisting and turning can be carried out, when hoisting and turning is completed, only need to remove the second pin of fixed deck, and the next deck hoisting and turning work can be carried out, the structure can swing in the lifting lug through the buckle, and the turning work of deck is facilitated, thereby the purposes of stable structure, convenient disassembly and high durability are achieved.

The application discloses a method for installing a roll-on roll-off ship ramp, and steps are as follows: hoisting the ramp corresponding to a ship body foundation total section, performing three-dimensional positioning and calibration according to a design baseline and a rib position line, and then performing full-position welding to form a rigid installation reference; marking a hinge seat installation reference line, hoisting a ship body end hinge seat, and calibrating coaxiality, and then completing welding and fixation; hoisting the ramp body hinge, adjusting the level, and temporarily locking, hoisting the ramp cover, calibrating fitting precision, measuring the glue pressing amount, marking the relative installation reference, hoisting the movable deck to a temporary work station, avoiding the hoisting path of the upper total section, hoisting the upper total section, performing positioning and calibration, and then welding to form an upper structure, disassembling the ramp and the cover, cleaning the installation position, installing a glue pressing groove and a glue strip, resetting the two, and assembling electrical and outfitting parts. The method optimizes the process and operation time sequence, controls the installation precision in a closed loop, improves construction efficiency, reduces cost and construction risk, and has strong universality.

The utility model discloses an arrangement structure of watertight doors between stairways of a roll-on-roll-off ship, which comprises a stairway enclosure bulkhead and a stairway deck, the stairway enclosure bulkhead divides the stairway deck into a stairway inner deck and a stairway outer deck, and the watertight doors are arranged on part of the stairway enclosure bulkhead between the stairway outer deck and the stairway inner deck; and the outer deck between the stairways is a corner area of the deck between the stairways. According to the arrangement structure of the watertight doors between the stairways of the roll-on-roll-off ship, the design specifications of the stairways are met, meanwhile, the corner space between the stairways is fully used for obliquely arranging the watertight doors, the corner unoccupied space between the stairways is used as a buffering platform for entering and exiting a movable deck, the maximum design of the movable deck can be met, and the service life of the movable deck is prolonged. And the safety and the practicability can be improved.

The invention belongs to the technical field of AGV combined sliding mode regenerative braking control, and particularly relates to a combined sliding mode regenerative braking control method and system for a five-axis heavy-load AGV. The method comprises the following steps: acquiring running state information of the five-axis heavy-load AGV in real time, and preprocessing the running state information; estimating the key state parameters based on the preprocessed operation state information; based on the key state parameters, a combined sliding mode control law is independently executed for each wheel, the expected regenerative braking torque of each wheel is calculated, and the combined sliding mode control law comprises a sliding mode control law based on wheel deceleration and a sliding mode control law based on the slip rate; and the calculated expected regenerative braking torque of each wheel serves as a reference control quantity and is sent to a hub motor corresponding to each wheel, and the braking stability, safety and road surface adaptability of the vehicle under the conditions of low speed, high load and complex road surfaces in a roll-on-roll-off ship and the like can be effectively improved.

The invention belongs to the technical field of transfer robot obstacle avoidance, and particularly relates to a visual obstacle avoidance method for a transfer robot in a roll-on-roll-off ship in a low-illumination environment. The method comprises the steps that multi-source data are collected, the collected multi-source data are preprocessed, and the multi-source data comprise infrared images and laser radar point cloud data; performing target detection on the infrared image, and identifying an obstacle and a type in the infrared image; for the laser radar point cloud data, using an RANSAC plane fitting algorithm to calculate the height of a ground projection, and identifying an obstacle in the laser radar point cloud data; the infrared vision weight and the laser radar weight during fusion are dynamically adjusted according to the ambient illuminance, and obstacles in the infrared image and obstacles in the laser radar point cloud data are fused; and based on the position of the obstacle, the transfer robot avoids the obstacle during path planning.

The utility model discloses a roll-on and roll-off springboard for a passenger terminal, and relates to the technical field of port equipment. The roll-on and roll-off springboard for the passenger terminal comprises a U-shaped hollow frame, fixing shafts are fixedly mounted on the front side and the rear side of the U-shaped hollow frame, hollow plates A are rotatably mounted on the outer walls of the fixing shafts, hollow plates B are arranged on the inner sides of the hollow plates A, hollow plates C are slidably mounted on the inner sides of the hollow plates B, and fixing ropes are fixedly mounted on the outer walls of the front side and the rear side of each hollow plate C. According to the passenger terminal roll-on roll-off springboard, the hollow slab A, the hollow slab B and the hollow slab C can be driven to deflect through the traction structure, the hollow slab A, the hollow slab B and the hollow slab C can be erected on most types of roll-on roll-off ships, and the springboard formed by the hollow slab A, the hollow slab B and the hollow slab C has the functions of up-and-down deflection, front-and-back deflection and left-and-right stretching and retracting; the hollow plate C can be prevented from jumping on the deck of the roll-on-roll-off ship, the stability of the roll-on-roll-off springboard is improved, and goods are convenient to load and unload.

The present application relates to a kind of load and motion prediction method of floating body inter-springboard transfer vehicle, using quasi-static method, according to certain time step, carry out each time geometric modeling analysis, in combination with the static water force integral solution theory of floating body floating state, construct the equation group with each floating body trim angle and springboard angle as unknown, solve equation group by iterative method, obtain the value of each time floating body relevant posture, load, and then can carry out vehicle transfer safety evaluation, support guarantee scheme design and operation capability boundary determination, better accuracy and convenience;By constructing the proxy model of each floating body trim angle and springboard angle and each floating body buoyancy and center of buoyancy coordinate, the calculation time can be effectively shortened under the premise of ensuring calculation accuracy, and the demand for computing power is reduced.The vehicle loading and unloading transfer operation of roll-on / roll-off ship and roll-on / roll-off boat.

The utility model discloses a roll-on-roll-off ship ballast tank ventilation pipeline penetrating structure which comprises a ballast tank inner bottom plate and a supplement plate, a plurality of longitudinal ribs are arranged on the reverse side of the ballast tank inner bottom plate in parallel at intervals in the width direction of a ship, and the supplement plate is connected with the longitudinal ribs. And the ventilation pipeline penetrates through the supplement plate or the longitudinal bone and / or the longitudinal bone and the supplement plate. The ventilation pipeline penetrating structure of the ballast tank of the roll-on-roll-off ship is simple in connection and small in weight increase, and a ventilation pipe hole of a pipe system is reserved so that the ventilation pipe hole can transversely penetrate through a longitudinal component of the structure.

The embodiment of the invention provides a method and device for determining the vehicle parking position of a roll-on-roll-off ship, and the method comprises the steps: screening out a candidate position set allowing the vehicle to be parked from a target roll-on-roll-off ship according to a preset public constraint condition and a loading direction constraint condition; aiming at each candidate position in the candidate position set, simulating that a current to-be-distributed vehicle in a queuing sequence of to-be-ferried vehicles is parked at the candidate position, and according to the current ship loading state, through the first interpolation function, the second interpolation function and the third interpolation function, calculating the ship stability height after simulation loading; and selecting the position enabling the estimated total load capacity of the target roll-on-roll-off ship to be maximum as the final parking position of the current to-be-distributed vehicle from the candidate positions with the stability height within a preset safety threshold range obtained through calculation. On the premise of guaranteeing the stability and safety of the ship, the loading efficiency and economic benefits can be maximized, and an executable parking scheme is output.

The invention relates to a hoisting tool and a hoisting method of a mobile substation, and the hoisting tool comprises a hoisting beam and a connecting assembly, the connecting assembly comprises two groups of hoisting pin shafts respectively corresponding to the two groups of hoisting points, two groups of hoisting lugs respectively corresponding to the two groups of hoisting points, and a balance rope penetrating through the hoisting points, wherein the two ends of the balance rope are respectively connected to the hoisting pin shafts and the hoisting lugs. The balance rope is pulled up through the lifting beam, the two ends of the balance rope apply the same pulling force to the frame and the transformer at the same time, compression of the transformer to the frame is relieved, deformation of the frame is reduced, overall transfer of the mobile substation from a port to a cargo ship is achieved, disassembly and assembly are not needed, a roll-on-roll-off ship is not needed, and the lifting efficiency is improved. And good hoisting universality is achieved.

The application relates to the technical field of ship testing, and is a kind of roll-on / roll-off ship automobile walking test top gap measuring method based on an adjustable model, key control points for top gap measurement are determined; real vehicle size data of various target vehicle types are acquired, and the key control point coordinates are the intersection points of the highest points of the vehicle roofs and the front and rear end surfaces; an adjustable frame type model is made; the height, the wheelbase and the key control point size of the model are adjusted according to the target vehicle type data, and the simulation of multiple vehicle types is realized; the model is moved to a measuring position for measurement; when the vehicle type is replaced, the above steps are repeated, and the continuous measurement of multiple vehicle types is realized by adjusting the model parameters. The roll-on / roll-off ship automobile walking test top gap measuring method disclosed by the application replaces different vehicle types required to be used at different positions during the test by the manufacturing and use of the adjustable model, simplifies the test operation and improves the test efficiency under the premise of ensuring the reliability of the test data.

An inland river ship roll-on / roll-off ship anti-pitching system, which comprises a lead screw mechanism, a cable support sliding mechanism, a counterweight ball, a locking ball mechanism and an angle adjusting hydraulic cylinder; the lead screw of the lead screw mechanism is in threaded cooperation with the counterweight ball, and the guide rod is in sliding cooperation with the counterweight ball; a plurality of cable support sliding mechanisms are in sliding cooperation with the guide rod; the electromagnet of the locking ball mechanism is in sliding cooperation with the accommodating groove at the bottom of the counterweight ball; the angle adjusting hydraulic cylinder is connected with the lead screw mechanism; the counterweight ball moves linearly under the rotation of the lead screw, the angle adjusting hydraulic cylinder pushes the lead screw to deflect, the lead screw mechanism drives the counterweight ball to move to the required position of the ship bottom plate to change the center of gravity of the ship and prevent the ship from pitching; in the harsh water environment, the ship body floatage is adjusted in cooperation with the ballast tank to avoid the ship body from pitching, the adjustment is rapid, the response time is fast, and the time consumption is short.

The invention discloses a lifting road sill device for a roll-on-roll-off ship, and relates to the field of roll-on-roll-off equipment. The hanging device is used for hanging the uphill at the initial position and lowering the uphill to rotate to a preset station; the downhill way is hinged to the other side of the ship body structure; the jacking device is used for jacking the lower ramp to rotate to a preset station; and the docking device is used for docking and locking the upper ramp and the lower ramp which are aligned at the preset station. The lifting road sill device for the roll-on-roll-off ship can be unfolded during working so that a vehicle can conveniently go to the upper layer from the lower layer of a ship body structure, can be retracted in a normal state so that the internal space of the ship body cannot be occupied, facilitates internal passing, and is high in applicability, wide in application range, exquisite and attractive in structure, small in occupied space, low in energy consumption and long in service life; safety, reliability and convenience in use are realized.