FIELD: transport.
SUBSTANCE: shipboard icebreaking device is proposed which device contains axe pivotally mounted on horizontal axis in fore bottom vessel part so that while the ship is underway the axe is under ice and directed forward. The axe is forced into vibration using vertical shaft windlass with bell crank mounted on its upper flange which bell crank transmits motion to axe by means of chain pivotally connected with the bell crank and passed through block installed on lever at fore end near stempost. The chain is attached to the axe. Herewith, the chain is additional icebreaking element as saw because it performs reciprocating movement. To adjust initial height of the axe depending on ice cover thickness and draft the lever with block and hydraulic actuator, as well as turnbuckle mounted between chain links are provided. Axe can be fixed in upper nonoperational position.
EFFECT: simplified design, improved reliability and efficiency of shipboard icebreaking device.
2 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF RECONSTRUCTION OF FORE END OF CARGO SHIP FOR ROUTING IN ICE WITH HELP OF ICE BREAKER | 2020 |
|
RU2732262C1 |
| EYES OF SHIP HULL WITH HIGHER ICEBREAKING CAPABILITY | 2013 |
|
RU2536568C1 |
| ARCTIC ICE-BREAKER FREIGHT SUPERSHIP WITH ICREPROOF PYLON | 2008 |
|
RU2389640C1 |
| ICE-BREAKER (VERSIONS), METHOD AND SYSTEM FOR SINGLE-SUPPORT MOORING AND SERVICING OF SHIPS | 2002 |
|
RU2201375C1 |
| SYSTEM FOR LOADING AND UNLOADING HYDROCARBONS IN WATERS PREDISPOSED TO ICE FORMATION | 2007 |
|
RU2422320C2 |
| TOWED DEVICE FOR ICE BREAKING AT MAKING CLEAR-WAY IN ICE | 2012 |
|
RU2508224C2 |
| SHIP FORE END | 2010 |
|
RU2443591C1 |
| SEA-GOING ICE NAVIGATION VESSEL | 2020 |
|
RU2753031C1 |
| ICE-BREAKING TANKER | 2011 |
|
RU2493042C2 |
| MARINE RESCUE RESEARCH SHIP | 2015 |
|
RU2603818C1 |
