Tool for hoisting and putting down piston of marine main engine

Abstract

The utility model discloses a marine main engine piston hoisting and putting down tool which comprises a top plate, a transverse reinforcing rib, a longitudinal reinforcing rib, a transverse frame structure, a first reinforcing panel, a second reinforcing panel, a third reinforcing panel and a fourth reinforcing panel. The transverse frame structure is fixedly connected with the first reinforcing panel, the second reinforcing panel, the third reinforcing panel and the fourth reinforcing panel to form a chair type frame structure, and the top plate structure is fixedly connected with the chair type frame structure. The hoisting and putting-down tool for the ship main engine piston is matched with a hoist crane, so that the personnel matching can be reduced, personnel matching errors are avoided, the safety is greatly improved, the cost is saved, the putting-down requirements of various types of main engine pistons are completely met, and one person can complete the main engine piston putting-down work by utilizing the tool to be matched with the hoist crane.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ship main engine piston repair during ship repair, especially relates to a ship main engine piston hoisting and laying down tool. BACKGROUND

[0002] In recent years, the shipping market continues to rise, and the ship repair market business is more and more, in the ship repair process, the main engine piston maintenance is an important project of ship repair, and the piston needs to be pulled out from the inside of the main engine during maintenance, because the ship main engine piston is thin and high, and the center of gravity is relatively high, the piston needs to be laid down for maintenance during hoisting to the repair site, the piston is more than 3 tons in weight, and the traditional way is that one person operates the crane and one or two people cooperate with the wooden square to lay down the piston, which not only causes the piston to be knocked, but also easily causes piston injury accidents, in order to reduce personnel cooperation failure, safely lay down the piston, and improve the efficiency of piston laying down, the special ship main engine piston hoisting and laying down tool is designed for the above problems. SUMMARY

[0003] The utility model discloses a ship main engine piston hoisting and laying down tool that can improve safety and save cost.

[0004] The utility model discloses a ship main engine piston hoisting and laying down tool that can improve safety and save cost.

[0005] The first rubber plate (2) is arranged on the top plate (1).

[0006] The second rubber plate (10) is arranged on the fourth reinforcing panel (9).

[0007] The bottom of the chair type frame structure is in arc shape.

[0008] The utility model discloses a ship main engine piston hoisting and laying down tool, cooperate with the gourd lifting, can reduce personnel cooperation, avoid personnel cooperation failure, improve safety greatly, and save cost, save manpower and material resources simultaneously, satisfy various model main engine piston laying down demand completely, realize that one person uses this tool and the gourd lifting cooperation and completes the work of main engine piston laying down. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a front view of the ship main engine piston hoisting and placing tool.

[0010] Figure 2 is Figure 1 A-A sectional view.

[0011] Figure 3 is Figure 1 B-B sectional view.

[0012] Figure 4 is a use state schematic view of the ship main engine piston hoisting and placing tool.

[0013] In the figure: 1, top plate; 2, first rubber plate; 3, transverse reinforcing rib; 4, longitudinal reinforcing rib; 5, horizontal frame structure; 6, first reinforcing panel; 7, second reinforcing panel; 8, third reinforcing panel; 9, fourth reinforcing panel; 10, second rubber plate; 11, shackle; 12, sling; 13, sling hoist; 14, ship main engine piston. DETAILED DESCRIPTION

[0014] As Figures 1 to 4 shown, the ship main engine piston hoisting and placing tool comprises a top plate 1, a first rubber plate 2, a transverse reinforcing rib 3, a longitudinal reinforcing rib 4, a horizontal frame structure 5, a first reinforcing panel 6, a second reinforcing panel 7, a third reinforcing panel 8, a fourth reinforcing panel 9 and a second rubber plate 10, the top plate 1, the transverse reinforcing rib 3 and the longitudinal reinforcing rib 4 are welded to form a top plate structure, the horizontal frame structure 5, the first reinforcing panel 6, the second reinforcing panel 7, the third reinforcing panel 8 and the fourth reinforcing panel 9 are welded to form a chair type structure frame, and then the top plate structure and the chair type structure frame are welded together to form the ship main engine piston hoisting and placing tool, then the first rubber plate 2 is fixed on the top plate 1 by using glue, and finally the second rubber plate 10 is fixed on the fourth reinforcing panel 9 by using glue; as Figure 4The ship main engine piston hoisting and laying down tool shown needs to be used in cooperation with a hoist 13, and the ship main engine piston 14 is directly laid on the first rubber plate 2 of the top plate 1 of the laying down tool. Due to the arc shape of the lower part of the laying down tool, the piston naturally rotates in the direction of the arc under the action of gravity. The operator supports the upper part of the piston while operating the hoist to lower. When the piston rotates 90 degrees, the hoist is stopped. A piece of wood is placed below the upper part of the piston, and the hoist 13 completely lays down the piston 14. In specific use, the hoist 13 is connected with the lifting belt 12, the shackle 11 is used to connect the ship main engine piston 14 and the lifting belt 12 together, the hoist 13 is operated to hoist and lay the ship main engine piston 14 on the top plate 1 of the ship main engine piston hoisting and laying down tool, the hoist 13 is slowly lowered, the hoist 13 is continuously lowered when the main engine piston rotates to one side, until the ship main engine piston 14 rotates 90 degrees, a piece of wood is placed below to support and protect, and the purpose of laying down the ship main engine piston 14 for convenient maintenance is achieved. The ship main engine piston hoisting and laying down tool is simple in structure, convenient to operate, and low in cost, and can completely meet the requirement that one person can lay down the piston during piston maintenance.

Claims

1. A lifting and dumping tool for a marine engine piston, characterized in that: It comprises a top plate (1), a transverse reinforcing rib (3), a longitudinal reinforcing rib (4), a horizontal frame structure (5), a first reinforcing panel (6), a second reinforcing panel (7), a third reinforcing panel (8) and a fourth reinforcing panel (9), the top plate (1) is fixedly connected with the transverse reinforcing rib (3) and the longitudinal reinforcing rib (4) to form a top plate structure, the horizontal frame structure (5) is fixedly connected with the first reinforcing panel (6), the second reinforcing panel (7), the third reinforcing panel (8) and the fourth reinforcing panel (9) to form a chair type frame structure, and the top plate structure and the chair type frame structure are fixedly connected together.

2. A lifting and dropping tool for a marine engine piston according to claim 1, characterized in that: A first rubber plate (2) is arranged on the top plate (1).

3. The lifting and dropping tool for the main engine piston of a ship according to claim 1, characterized in that: A second rubber plate (10) is arranged on the fourth reinforcing panel (9).

4. The lifting and dropping tool for the main engine piston of a ship according to claim 1, characterized in that: The bottom of the chair type frame structure is in a circular arc shape.

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