SU403603A1 - CRANE FOR TRANSFERRING GOODS TO SHIPS UNDER THE CONDITIONS OF QUALITY - Google Patents

Description

one

The invention relates to ship cranes for the purpose of de-shocking non-impact and non-distributive cargoes in conditions of sea.

Cranes with a one-boom follower are known, in which the following ropes serve as guides to prevent the cargo from swaying. Two-jib cranes are also known, in which, in order to ensure a multi-load transshipment during the single connection of the following ropes with the receiving vessel, an additional boom is provided.

The drawback of the well-known cranes with a tracking device is that single-boom cranes, in which the following ropes are used as guides, require the re-docking of the following ropes with the deck of the receiving vessel to transfer each load. In two-jib cranes, in which one-time docking of the follow-up ropes is carried out during the transfer of a general number of goods, the follow-up ropes are not used as guides, which reduces the safety of the use of cranes.

In order to ensure the repeated transfer of cargoes with a single docking of the following ropes with the deck of the receiving vessel, an additional boom is mounted under the cargo boom carrying the tracking system.

and the cargo boom is equipped with a cart. The trolley is moved along the boom using the drive. The drawing shows the proposed device.

The crane for transferring cargo 1 in rolling condition from transferring vessel 2 to receiving vessel 3 has a swing boom 4, on which is placed a trolley 5 with a drive 6 moving it along the boom and a lifting mechanism (lowering) 7 to which on cargo cables 8 the traverse 9. is fitted. The automatic grippers 10 of the traverse are movably connected to two parallel cables 11 of the follower system. A tracking system with a tracking mechanism 12 is mounted on an additional boom 13 located under the cargo boom.

An additional boom mounted emphasis

14. The linkage of the lifting mechanisms 7 and 12 is carried out by coupling 15 and differential 16.

The transfer of cargo from the transferring vessel to the receiving vessel occurs in the following sequence.

An additional boom is installed above the receiving point of the cargo on the deck of the receiving vessel. With the help of the tracking mechanism 12 (the clutch 15 is open) the following

the cables are lowered and joined to the deck of the receiving vessel. After sampling the slack of the following cables, mechanism 12 begins to operate in the tracking mode. The cargo boom 4 is mounted above the cargo 1, which is located on the deck of the transmitting vessel 2. The trolley 5 is driven by the drive 6 to the place of cargo reception. On the cargo cables 8, the yoke 9 is lowered to the cargo and the weight 1 is attached to it. Mechanism 7 lifts the yoke 9 until it stops at the corresponding 10 limit switches mounted on the trolley 5, after which the trolley begins to move to the foot cargo boom 4. The cargo boom 4 turns towards the receiving vessel over the additional boom and lowers until it comes into contact with the limit switch installed on it. After that, the drive of the trolley movement is activated backwards from the boom 20, and the trolley 5 is moved until the following lil cables go into the guide grooves of the automatic claws 10 crosshead 9. Then the corresponding limit switches are activated, and 25 bed 5 stops. The drive mechanism 7 to lower the load is turned on, and after the load is removed from the boom 13, the coupling 15 is turned on for a certain amount, the load is lowered (the joint operation 30 begins through the differential 16 of the tracking mechanism 12 and lift-lowering load 7) with a uniform speed relative to the deck of the receiving vessel along the cables 11. The set tension of the following cables 11 35 5 is supported by the tracking mechanism 12. When the traverse 9 is lowered onto the deck of the receiving vessel 3, the load 1 is disconnected from the traverse. Then, by means of the mechanism 7, the traverse is raised, and the clutch 15 is disengaged. The yoke 9 is raised until the automatic grippers 10 are pressed against the stop 14 on the additional boom, after which the trolley 5 begins to move to the bottom of the cargo boom, releasing the automatic grippers 10 of the yoke 9 from the following cables 11. The cargo boom 4 rises and turns following cargo. The cycle is repeated. Moving the carriage 5 and lowering the load can be carried out by a single power drive, since their simultaneous operation is not required. The subject of the invention is a crane for transferring cargo to vessels in pitching conditions, containing a new swing boom with a crosshead mounted on the cargo cables, by means of automatic grippers movably connected with the two parallel cables of the follower system fixed on the receiving vessel, ensuring - repeated transfer of cargoes at one-time docking of the following ropes with the deck of the receiving vessel; an additional boom is mounted under the cargo boom carrying the tracking system, and cargo The relay is equipped with a trolley with a movement drive along the boom.