80results about "Ice breakers" patented technology

The invention belongs to the technical field of ships, and discloses an arrangement position type polar region ship with a stern-direction ice breaking and discharging structure. The arrangement position type polar region ship comprises a ship body, an ice discharging piece and a rudder, and the width size of the ship body is B; the ice discharging piece is fixed to the bottom face of the stern, the outer surfaces of the ice discharging piece are all curved surfaces, the curvature radius R1 of the ice discharging piece in the ship length direction ranges from 0.20 B to 0.80 B, the curvature radius R2 of the ice discharging piece in the ship width direction ranges from 2 to 8, the contact area of the large-curvature outer surface and crushed ice is small, the crushed ice and the curved surfaces are difficult to form a stable attachment relation, and the ice discharging piece is not prone to falling off. Therefore, under the action of hydrodynamic force, crushed ice at different positions of the curved surface can quickly slide to different positions, accumulation of the crushed ice on the inner side of the upper portion of the rudder is avoided, and the sailing safety of a ship is improved. The rudder extends in the height direction of the ship, and the upper end of the rudder is installed on the bottom face of the ice discharging piece in a swinging mode and located at the end, close to the bow, of the ice discharging piece in the length direction of the ship, so that the ice discharging piece plays a role in protecting the rudder.

The invention discloses an icebreaker propulsion control system and method based on self-adaptive power and rotating speed cooperation, and the method comprises the steps: inputting the operation state of an electric propulsion system, and carrying out the dynamic balance adjustment of a working point of a permanent magnet synchronous motor through a self-adaptive operation point cooperation optimization control module; the balance optimization result is evaluated through the operation index evaluation module; after balance adjustment is completed, an operation point anti-interference control module carries out anti-interference control on the dynamic working point, and periodic load disturbance is relieved; after the anti-interference control is completed, the inverter control module controls the inverter through torque direct control and space voltage vector modulation; and outputting an optimized real-time control instruction of the electric propulsion system to realize final adjustment. By the adoption of the method, the flexible adjusting capacity and the operation range of the propelling system are improved, power and speed fluctuation under load torque sudden change is effectively relieved, system efficiency and safety are improved, and a key solution is provided for technical upgrading of polar region shipping equipment.

Novel ships A, B, C1 and C2 are provided. A, propeller propelling systems 3, 4 and 5 are arranged below waterlines on the two sides of a prow; b, arranging ice surface sliding plates on two sides of the ship body, and arranging a high-power electric fan above the waterline of the stern; c1, front, middle and rear sliding plates are arranged on the two sides of the ship body, and a plurality of sets of 50-meter trailer locking sliding plates are arranged on the high-speed rail. And C2, front, middle and rear sections of sliding plates are arranged on two sides of the ship body, a plurality of groups of electric high-speed rail wheels are arranged below the sliding plates, and the track gauge of each group of electric high-speed rail is 1.435 m. The method is comprehensively discussed in the specification of the specific development implementation scheme in the theoretical and technical fields.

The invention discloses a thin ice channel keeping device and method based on thermal compensation and double-face heat preservation, the device comprises a plurality of floating tables, each floating table comprises an anchoring floating platform, a storage battery and a compressor are installed in each anchoring floating platform, and each anchoring floating platform is connected with an underwater bubble generating device through a pipeline and an air-dissolved ice making device; a wind-solar complementary power generation device is installed on the compressor and the anchoring floating platform, an ice surface monitoring sensor is installed on the bottom face of the anchoring floating platform, and the wind-solar complementary power generation device and the storage battery are electrically connected. The anchoring floating platform is fixedly connected with a heating rod, the heating rod comprises an outer pipe and a heating inner pipe, and the outer pipe is filled with a refrigerant; a gas-dissolved ice making device is installed on the anchoring floating platform and comprises a seawater conveying pipe, and a seawater spraying head is installed at the top end of the seawater conveying pipe. The thickness of an ice layer in a channel can be reduced, meanwhile, foam ice covers the surface of the channel, the mechanical strength of the ice surface is reduced, and ordinary ships can break ice conveniently.

The application provides an electromagnetic resonance-based submarine surfacing ice-breaking auxiliary device and an ice-breaking method thereof, and belongs to the field of submarine surfacing ice breaking in polar regions. The device solves the problems of the prior ice-breaking method, i.e., the method requires high strength of the submarine structure, causes great loss of the submarine shell, and consumes a large amount of resources and energy. The device comprises a mounting platform, a resonance system and a hook claw. The mounting platform is arranged on the submarine shell. The top of the resonance system is connected with the hook claw. The resonance system is arranged in the mounting platform. The resonance system comprises a magnetic end, a spring and a magnetic piece. The spring is arranged between the magnetic end and the magnetic piece. The magnetic end and the magnetic piece are respectively arranged at the lower end and the upper end of the mounting platform. The magnetic piece is connected with the hook claw. The device is mainly used for submarine surfacing ice breaking.

The application discloses a bidirectional ice-breaking transport ship with open water performance, wherein the lower bow part of the bow of the ship is a small ball bow, the lower ice belt waterline is located on the upper half of the small ball bow, the outer surfaces of the upper bow part, the middle bow part and the lower bow part are streamlined, an ice discharge groove is arranged below the stern plate of the stern of the ship, the ice discharge groove is divided into two symmetrical halves by the centerline of the ship, the intersection line of the ice discharge groove and the ice-breaking stern is the stern post, the included angle between the stern post and the centerline of the ship is not greater than 30 DEG, a pod platform is arranged at the position close to the keel of the stern post, a triangular transition plate is arranged at the position close to the stern of the ship, the transition plate connects the end of the ice discharge groove and the ice-breaking stern with the stern plate, the distance between the two stern posts on the two sides of the ice discharge groove gradually increases from the stern of the ship to the keel direction, and the end of the stern post close to the transition plate is higher than the other end. The structure of the bidirectional ice-breaking transport ship has the open water performance under ballast water and the bow ice-breaking performance under the lower ice belt waterline, the bow of the ship has the ability of breaking thin ice, the stern of the ship has the ability of breaking medium heavy ice, and the bidirectional ice-breaking transport ship has important significance.

The application belongs to the technical field of law enforcement boats, and particularly relates to a steel-glass mixed high-speed law enforcement boat, which comprises a high-speed law enforcement boat body, the upper surface of the bow deck of the high-speed law enforcement boat body is fixedly connected with a hollow leveling block, the upper surface of the hollow leveling block is fixedly connected with an air extraction pump and a protective cover through connecting bolts, the air outlet end of the air extraction pump is fixedly communicated with the upper surface of the hollow leveling block, the outer wall of the protective cover is provided with a threaded hole, and the hole wall of the threaded hole is sealingly connected with an air inlet filtering mechanism. The steel-glass mixed high-speed law enforcement boat has the function of adjusting the buoyancy, thereby the water depth can be adjusted, the running resistance of the high-speed law enforcement boat is reduced as much as possible, the high-speed law enforcement boat has the functions of overload early warning and breaking thin ice layer, the high-speed running performance and protection capability of the high-speed law enforcement boat can be effectively improved, and the safety and reliability of the high-speed law enforcement boat running can be improved.

The invention discloses an ice sailing ship. The present invention relates to a ship for sailing in an ice region, comprising: a skeg formed at the lower part of a stern; and the echo depth finder is arranged on the skeg and is configured to emit ultrasonic pulses to the seabed, receive the ultrasonic pulses reflected back from the seabed and calculate the depth of the seabed based on the time required for returning the ultrasonic pulses.

The invention discloses an ice block impact resistance structure for an icebreaker, and relates to the field of ship protection.The ice block impact resistance structure comprises a ship body, a mounting frame is mounted at the front end of the ship body, an anti-collision icebreaking assembly is arranged at the bottom of the mounting frame, and the anti-collision icebreaking assembly comprises a mounting seat. The ice breaking capacity of the icebreaker is improved, power collected by the elastic buffering assembly is converted and transmitted to the driving assembly through the linkage assembly, ice stirring plates and stirring rods on the left side and the right side are driven to be lifted upwards and inserted into a broken ice layer, and meanwhile through cooperation between an arc-shaped rail and a movable rod, the ice breaking capacity of the icebreaker is improved. The ice stirring plates and the stirring rods on the left side and the right side are synchronously driven to stir the broken ice layer to the two sides at the bottom of the ice layer, friction generated between the surface of the ship body and the broken face of the ice layer is reduced, and protectiveness of the front end of the ship body is enhanced.

The invention relates to the field of sea ice thickness measurement, in particular to a sea ice thickness measuring device based on an icebreaker, which comprises a mounting part, an outward extending part is arranged in the mounting part, a micro moving part is arranged in the outward extending part, a lifting part is arranged in the micro moving part, a measuring part is arranged in the lifting part, and the measuring part is provided with a snow cleaning chassis. The bottom of the probe rod is fixedly connected with six scrapers which are circumferentially distributed, the scrapers are used for rapidly cleaning a snow accumulation layer and floating ice impurities in a to-be-measured area, the surface of the ice layer is completely exposed, when the probe rod makes contact with the ice layer, a signal is immediately fed back to an external control assembly, the downward moving cylinder body is controlled to stop descending, and it is ensured that the ice thickness measurer only conducts thickness measurement from the surface of the ice layer. And the problems that the ice layer and the accumulated snow layer are difficult to effectively distinguish and the accumulated snow thickness is easy to be included into the sea ice thickness measurement result by utilizing an intelligent sensor and a sound wave type measurement technology are effectively avoided.

System (100) for maneuvering ships in icy waters, comprising: - an electronic control unit mounted inside a compartment of a ship (50); - a driving means (101), connected to the electronic control unit, consisting of telescopic modules; - a lifting device, connected to the driving means (101) and to the electronic control unit, configured to activate said driving means (101). The driving means (101) is housed in correspondence with the stern portion (51) of the ship (50) and is configured, following the activation by means of the lifting device, to come out from said compartment and extend along the surface of the water in a substantially circular shape to surround substantially an entire lower portion of the hull of the ship (50).

This invention proposes an icebreaking device, vessel, and method combining jet-resonance technology for ice-trapped vessels, relating to the field of polar icebreaking technology. It addresses the problem of conventionally powered vessels or icebreakers with low ice levels struggling to break through ice in areas with ice thickness greater than 1.2 meters. It includes a hoisting platform, a jet icebreaking module, a resonant icebreaking module, and an attachment stabilization module. The hoisting platform is used for assembly with an external crane. The jet icebreaking module outputs water jets to break the ice. The resonant icebreaking module induces resonance in the ice layer. The attachment stabilization module includes a helical anchor bolt and a power mechanism. The power mechanism drives the helical anchor bolt to rotate relative to the hoisting platform, and the helical anchor bolt drills into the ice surface to fix the hoisting platform. It is primarily used on polar vessels to break through ice and escape when a vessel is trapped.

A sea ice habitat restoration system is configured to rapidly extract pack ice and raft it onto level ice to establish disturbance corridors that augment the ecological carrying capacity and resistance to continuing climate change. The deployable system is configured to be mounted on an icebreaking ship and includes a inclined-plane ice ramp supported by an ice rafting device. The system applies a hogging moment to the extracted sea ice and laterally rafts it with minimal damage, facilitating the restoration of sea ice habitats of threatened ice-obligate and ice-associated species. This ship-mounted version produces significantly greater volumes, additional vertically and horizontally arranged layers, and more widely distributed composite masses of freeze-bonded rafted ice over the course of a w inter compared to the singly rafted ice passively produced by the moored version referenced herein.

The utility model discloses a wave type icebreaking robot which comprises a main cabin body, an ultrasonic vibrator deicing device, a sinking and floating device, a control device and a driving device, the tail part of the main cabin body is fixedly connected with the propeller; the main cabin body is of a symmetrical structure, an ultrasonic vibrator deicing device and a control device are arranged in a central cavity of the main cabin body, sinking and floating devices are symmetrically installed on the two sides of the central cavity, and driving devices are installed on the outer sides of the sinking and floating devices. The high-frequency vibration of ultrasonic waves is utilized to cause rapid change of local pressure, and cavitation bubbles are generated. When the cavitation bubbles are broken near an ice layer, powerful waves can be generated, stripping and breaking of the ice layer are facilitated, and compared with a traditional ice breaking device, the ice breaking device has the efficient and rapid ice removing capacity and can remove the large-area ice layer within a short time. No chemical agent is needed, and pollution of the chemical agent to marine organisms and corrosion of the chemical agent to the surface of an object are avoided. And non-contact deicing is adopted, so that mechanical damage to the surface of an object is avoided.

This utility model provides a multifunctional floating platform for fire and water rescue, belonging to the field of emergency rescue equipment technology. It addresses the problem that existing methods require breaking ice while approaching trapped personnel, which is cumbersome and affects rescue efficiency. The platform includes a main body, a rescue anti-slip mat, an anti-capsulation hull, a multifunctional rescue mechanism, and a rescue conversion mechanism. The rescue anti-slip mat is fixedly connected to the top of the main body. The marking drive box is fixedly connected to the upper rear end of the rescue anti-slip mat. The anti-capsulation hulls are fixedly connected to the lower left and right sides of the main body. Rescue limiting blocks are fixedly connected to the lower part of the anti-capsulation hull. The multifunctional rescue mechanism is located on the outside of the main body. The rescue conversion mechanism is located below the anti-capsulation hull, allowing for rapid assembly and eliminating the need to break ice while approaching or to navigate the ice surface before inflating the platform, thus simplifying the pre-rescue preparation process.

The graded ice-collision-resistant protection structure comprises a floating base platform and an anti-collision device, the floating base platform is installed below a fan tower and supports the fan tower, and the floating fan is installed on the fan tower; the three anti-collision devices are arranged on the periphery of the floating foundation platform after being enclosed into a triangle; the anti-collision device comprises an icebreaking assembly and a connecting assembly. Three second supporting columns are arranged at the bottom of the floating foundation platform, a triangle is defined by the three connecting assemblies, and the three inner corners of the triangle are connected with the three second supporting columns of the floating foundation platform through the buffering assemblies respectively; when an ice layer collides with the flow guide cover, the crushing roller is rotated to break floating ice in advance through the crushing nails, impact energy is reduced, large ice layer collision is prevented, the honeycomb buffer layer absorbs the impact energy, the flow guide cover and the supporting frame move synchronously, when the supporting frame moves, the fixing column compresses the spring for buffering, the damper is automatically started when exceeding a threshold value, and graded ice resistance of the floating foundation platform is achieved.

The application belongs to the technical field of ships, and particularly relates to an ice-breaking ship with a tail fin ice-breaking edge structure, which comprises an ice-breaking ship body, a bottom bin is arranged in the head of the ice-breaking ship body, and an ice-breaking auxiliary mechanism is hingedly arranged in the bottom bin; the ice-breaking auxiliary mechanism comprises an ice-contacting arm as a trigger component, a release arm as an execution component and a connecting shaft, the ice-contacting arm and the release arm are connected to form an L-shaped lever structure; the ice-breaking auxiliary mechanism is contacted with the ice layer to release the high-efficiency release of the huge deadweight energy of the ship body with small mechanical energy input, and the peak impact load that the ship body may bear when crushing the ice layer is reduced due to the pre-weakening of the ice layer, which helps to prolong the structural life of the ship body, the local damage effect based on the ice-breaking auxiliary mechanism can effectively weaken the ice layer structure, thereby effectively weakening the edge structure of the ice layer, improving the ice-breaking efficiency of the ice-breaking ship body, crushing the ice block of the impact tail fin and protecting the pod propeller.

The utility model discloses a kind of ice prevention devices on full-rotation rudder propeller of ice area navigation ship, belong to ship propeller technical field, including box, the box is provided with rudder column, the rudder column is connected with ship body;Icebreaking cone, the icebreaking cone quantity is multiple and evenly distributed in the front end of the box, to carry out icebreaking treatment;Hub, the hub is located in the front end of the box, a plurality of blades are provided on the hub, to push ship body;Guide piece, the guide piece is connected with the box by a plurality of reinforcing ribs, the guide piece is located between the icebreaking cone and the hub, the guide piece is horn shape structure body.The utility model does not need to use net-shaped protective structure to protect blade, adopts icebreaking cone, reinforcing rib and guide piece to be arranged in echelon in navigation direction, and additionally add icebreaking ice knife, effectively avoid the phenomenon of ice jam, realize the function of icebreaking, ice separation and lateral protection.

The invention discloses a rubber dinghy for water rescue, and relates to the technical field of water rescue equipment, the rubber dinghy comprises a rubber dinghy body, the rubber dinghy body is of a three-layer composite structure comprising an inner layer, a middle layer and a contact layer, the rear side of the rubber dinghy body is provided with an outboard outboard engine and a propeller, and the outboard outboard engine is fixedly installed on the rear side of the rubber dinghy body; the output end of the outboard outboard engine is in transmission connection with a propeller, a control seat is fixedly arranged at the position, corresponding to the control steering wheel, in the rubber dinghy body, a rear transverse seat plate used for bearing rescue workers is fixedly installed on the rear side of the control seat, and an icebreaking assembly is integrated at the bottom of the front side of the rubber dinghy body. The ice breaking assembly comprises a driving mechanism, a transmission mechanism and an ice breaking mechanism. Through cooperation of the icebreaking assembly and the outboard outboard engine, the rubber boat can rapidly advance in an open water area and can flexibly break ice in an iced water area, the use scene limitation of a traditional rescue rubber boat is broken through, and the practicability and reliability of rescue operation are improved.

The invention belongs to the field of ship design, and discloses an ice region ship attitude control system with a deicing device, which comprises an ice-resistant structure, a pressure sensing assembly, the deicing device and an attitude sensing device. The ice-resistant structure is installed on the outer side face of the ship body, the pressure sensing assembly is used for detecting the value of pressure applied to the ship body by an ice layer at a target position on the ship body, the deicing device is used for removing the ice layer at the target position on the ship body, the pressure sensing assembly and the deicing device are both installed on the ice-resistant structure, and the posture sensing device is installed on the ship body. The method is used for obtaining the posture of the ship body, accurate prediction of long-period posture changes of the ship can be achieved, the ice layer at the target position is removed through the deicing device, the growth condition that the ice layer surrounds the ship is balanced, the ship body can be stabilized in the relatively horizontal posture, and the situation that the ship body structure is damaged and the working efficiency of sailors is affected is avoided.

The present disclosure relates to methods, apparatuses, and systems for unmanned underwater vehicles capable of operation in the Arctic region. An example unmanned underwater vehicle includes: a hull; one or more guide rails extending from the hull and attached to the hull by one or more legs; a vertically-deployed mast, wherein the vertically-deployed mast is configured to penetrate through an ice sheet; and a communications antenna, wherein the communications antenna is deployed with the vertically-deployed mast and enables communication above the ice sheet. The dorsally-located guide rails of an example define an extended position and a retracted position, wherein the guide rails disposed in the extended position are disposed further from the hull than the guide rails disposed in the retracted position. Embodiments described herein include systems employing air-deployable buoys, water-deployed buoys and small UUVs, and ice-penetrating buoys to support communications in the Arctic region.

The invention discloses an intelligent propulsion system of a polar region icebreaker. A low-speed motor direct-driven propulsion system of the icebreaker is used for providing propulsion power required by icebreaking navigation and bearing torque, thrust and radial force generated by ice paddle impact in ice region navigation; the ice load propelling system intelligent monitoring system is connected with the icebreaker low-speed motor direct-drive propelling system and used for monitoring ice loads borne by the propelling system and movement related parameters in real time, and the local ice thickness measurement data supporting system is used for obtaining local ice thickness data of a navigation area. The propulsion system dynamic characteristic decision analysis system is connected with the ice load propulsion system intelligent monitoring system and the local ice thickness measurement data support system, and is used for monitoring the local ice thickness based on the load and motion monitoring data of the propulsion system and the local ice thickness data. Decision analysis is carried out on the dynamic operation characteristics of the propelling system, a regulation and control instruction is output and fed back to the icebreaker low-speed motor direct-drive propelling system, and intelligent cooperative operation of the whole propelling system is achieved.

The utility model relates to an icebreaking type measuring support. Comprising a ship side base installed on the outer side of a ship side, a hoisting frame is fixedly installed on the lower portion of the outer end of the ship side base, an upper pipe sleeve is arranged below the hoisting frame, an upper pipe ice breaking cone plate is fixedly installed in front of the lower middle portion of the upper pipe sleeve, and a lower pipe sleeve is arranged below the upper pipe sleeve. A lower pipe ice breaking cone plate is fixedly installed in front of the lower pipe sleeve, the upper end of the lower pipe sleeve is fixedly connected with the lower end of the upper pipe sleeve, a supporting rod is arranged below the lower pipe sleeve, the upper end of the supporting rod is fixedly connected with the lower end of the lower pipe sleeve, and a measuring probe is installed at the lower end of the supporting rod. A cable of the measuring probe extends upwards along inner cavities of the supporting rod, the lower pipe sleeve and the upper pipe sleeve in an inner routing mode. A lifting driving assembly is further installed between the hoisting frame and the upper pipe sleeve. The utility model provides an icebreaking type measuring support which can smoothly and effectively execute measuring operation under the condition that floating ice exists on the water surface, the measuring support is prevented from being damaged by the floating ice, and meanwhile excessive vibration unfavorable for a measuring sensor / measuring probe in the measuring process is avoided.

The invention pertains to production facilities and can be used for creation of production complexes intended for hydrocarbon processing, storage, and offloading of the processed products, natural gas liquefaction plants, ammonia plants, methanol plants, hydrogen plants, on gravity-based structures (GBS). The integrated production complex comprises a gravity-based structure (GBS) accommodating topside modules 10 with process equipment. The GBS has rectangular top slab 2 and rectangular base slab 4, intermediate horizontal slab 13, internal vertical walls 5, at least one compartment 6 with tank 12 to store hydrocarbons and / or respective processed products, and ballast compartments 7. GBS top slab 2 has supports 9, on which topside modules 10 are installed. The GBS has central part 1 being a rectangular prism with said top slab 2, protruding part 3 stretching along the sides of central part 1 all around its perimeter and having external vertical walls 5. Protruding part 3 and central part 1 share base slab 4, with protruding part 3 being lower in height than central part 1 .Central part 1 has longitudinal and transverse walls 5 that form compartments 6 and 7, some of which accommodate tanks 12, while others are ballast compartments. Protruding part 3 has internal walls 5 that are perpendicular to its external walls and form compartments 8 and 15, some of which are ballast compartments. The proposed solution is an efficient production complex for hydrocarbon processing adapted to operate in waters with ice conditions in the Arctic.

The icebreaking control system comprises a mounting frame, first movable grooves are formed in the left side, the right side and the middle of the exterior of the mounting frame, an icebreaking frame is connected into the first movable grooves through hydraulic cylinders, and an icebreaking head is fixed to the bottom of the icebreaking frame; the ice breaking device further comprises second movable grooves, the second movable grooves are formed in the outer portion of the mounting frame and located between every two adjacent first movable grooves, mounting bases are slidably arranged in the second movable grooves in an attached mode, conduction assemblies are connected between the mounting bases and the ice breaking frame, and moving grooves are formed in the outer portions of the mounting bases. An adjusting groove is formed in the outer portion of the mounting frame, and an electromagnet is fixed to the inner wall of the adjusting groove in an embedded mode. According to the icebreaking control system and device for the ship, after icebreaking, an ice layer is pushed into water, ship advancing is prevented from being affected, and meanwhile the icebreaking control system and device are suitable for ice layers of different thicknesses.

The application belongs to the field of ship design, and particularly relates to a nuclear power icebreaker safety shell energy-absorbing buffer protection structure applied to ice resistance of the nuclear power icebreaker. The structure comprises three regions, namely, an impact resistance region, a transition region and a reactor cabin. The impact resistance region is connected with the transition region, the transition region is connected with the reactor cabin, and the transition region is located between the impact resistance region and the reactor cabin. The application has the following beneficial effects: 1) the safety shell is better protected by setting an additional isolation cabin and its accessory structure outside the safety shell; 2) the stress distribution of the impact load transmission to the ship middle component is improved by setting a supporting longitudinal girder, so that the position of the high stress area is changed positively; and 3) the application has the characteristics that the stress is obviously weaker than that of the impact resistance region and the reactor cabin component, and a large number of openings are designed, so that when the ship is impacted by an extreme event, a clear buffer zone and a fracture interface are formed in the region, and the integrity of the reactor cabin safety shell is effectively protected.

The invention relates to the technical field of icebreaking devices, and provides an underwater icebreaking device and an icebreaking system.The underwater icebreaking device comprises a barrel with a containing cavity, and one end of the barrel is used for icebreaking; the two eccentric parts are arranged in the containing cavity at intervals in the radial direction of the cylinder body, the two eccentric parts can rotate in opposite directions at the same time relative to the cylinder body, and the rotating axes of the two eccentric parts are parallel to the radial direction of the cylinder body and are perpendicular to the arrangement direction of the two eccentric parts; the driving assembly is arranged in the containing cavity and used for driving the two eccentric parts to rotate; the first transmission assembly is arranged between the driving assembly and one eccentric part; the second transmission assembly is arranged between the driving assembly and the other eccentric part; the driving part drives the two eccentric wheels to rotate reversely at the same time through the first transmission assembly and the second transmission assembly so as to drive the barrel to move in a reciprocating mode in the height direction of the barrel. Through the technical scheme provided by the invention, the icebreaking efficiency and the use cost of the device are both considered.

The present application relates to the technical field of polar icebreaker research and development, and particularly relates to an auxiliary icebreaking system suitable for a polar icebreaker. The auxiliary icebreaking system comprises a water supply pipeline, a negative pressure pipeline and a gas-water mixture generating device. A plurality of gas-water mixture generating devices are linearly arranged along the side of the polar icebreaker. During the sailing process of the polar icebreaker, the plurality of gas-water mixture generating devices are started alternately. The bubbles contained in the gas-water mixture generate cavitation effect in seawater due to the influence of the internal and external water pressure difference. After a short expansion, the bubbles rapidly present an asymmetric collapse phenomenon, and release a large amount of pulsating energy and heat in time, so that the ice layer in the nearby area is instantaneously broken. In actual operation, the bubbles are generated from the seawater boiling stage due to the negative pressure effect, and only the continuous supply of negative pressure gas is needed to maintain the boiling state of the seawater, so the energy consumption is extremely small; and during the seawater pumping stage and the negative pressure gas passing and bubble generating stage, the inner cavity of the tank body always remains in a non-high pressure state.