One-step centering ship shafting mounting method

An installation method, a one-time technology, applied in ship components, ship construction, transportation and packaging, etc., can solve the problems of large shaft alignment tolerance, heavy workload, and large hull vibration, etc., and achieve the solution of large alignment tolerance , reduce the number of alignment installations, and ensure the effect of safe use

Active Publication Date: 2012-12-12
中船桂江造船有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a one-time centering ship shaft

Method used

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  • One-step centering ship shafting mounting method
  • One-step centering ship shafting mounting method
  • One-step centering ship shafting mounting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] "Shafting and main engine installer" on a 750KW coastal tugboat

[0055] Positioning of rudder system, shaft system and main engine center line:

[0056] 1. Make the shaft sample rod, and check the correctness of the front and rear positions of the shaft system. Wherein, the distance between the rear end of the stern tube 2 and the front end of the stern tube 2 is 3984mm, and the distance between the rear end of the stern tube 2 and the center of the gearbox seat is 7349mm.

[0057] 2. Pulling wires and hanging wires (shafting pulling wires and rudder hanging wires are carried out at the same time).

[0058] 3. According to the upper and lower base points of the rudder system and the bow base point 11 and stern base point 16 (bow base point F23#, stern base point F-2#) of the rudder system determined by the hull profession, the diameter of the steel wire used for the suspension and stay wires is Φ0. 5mm, the hanging weight of the hanging wire is 0.5kg or more, and the...

Embodiment 2

[0107] 20-meter patrol boat "shafting and main engine installer"

[0108] The power plant of this boat adopts Chongqing Cummins NT855-M270 diesel engine and ZF305-2A gearbox. The shaft system is connected by a flange coupling, the main engine and the gear box are connected by an elastic coupling, and the shaft system adopts two-machine two-pulse linear transmission. The two shaft systems are symmetrically arranged, the length of the shaft system is about 4.890 meters, and the included angle with the baseline is about 7 degrees.

[0109] General rules:

[0110] The ship adopts wire drawing method for positioning and boring technology, and the shafting, main engine and gear box are aligned, installed and submitted for inspection on the berth.

[0111] 1 Shaft cable positioning

[0112] 1.1 Use the shafting sample stick to check whether the front and rear end faces of the shafting stern tube are correct, and make a record. Wherein, the distance between the rear end of the ste...

Embodiment 3

[0185] 618 Patrol Boat "Engine and Shafting Installer"

[0186] 1. Description:

[0187] This program is compiled according to the relevant drawings and documents of the 618BIII-10# ship issued by the design department of our company, in accordance with the construction procedures and combined with the specific conditions of our class, and is suitable for the shafting and main engine installation of the 618BIII-10# ship.

[0188] 2. Shafting and host positioning must meet the following conditions:

[0189] 2.1 Shaft alignment

[0190] 2.1.1 Conditions that must be met for optical centering of shafting:

[0191] 2.1.1.1 The assembly and welding work of the forward engine bulkhead and below the main deck to the aft structure has been completed, and the pyrotechnic calibration work has been completed.

[0192] 2.1.1.2 The tightness test of the above-mentioned areas including double bottom, after fresh water tank, cold storage, cabins connected to the hull in the engine room an...

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Abstract

The invention discloses a one-step centering ship shafting mounting method. The one-step centering ship shafting mounting method comprises the following steps of: mapping out a shafting bow base point (11) and a stern base point (16) on a ship body; defining a shafting center line by a wire drawing method or a light irradiating method; arranging bored circles at the tail end of a bracket (15) and the front and rear ends of a stern shaft pipe (2), and arranging a checking circle on a reference board (8); boring a bearing mounting hole and then mounting a bearing in a pressing manner; mounting a propeller (1), a stern shaft (14), a spiral shaft (3), middle shafts (12 and 13) and shaft couplers (4 and 6); adjusting the middle shaft I (12) to ensure that the axis of the middle shaft I is overlapped with the circle center of the checking circle; and mounting a main machine (10) with centering the output end of the main machine (10) to the input end of the middle shaft I (12), which is taken as reference; and finally, mounting a shaft coupler III (9), sleeving middle bearings (5 and 7) on the middle shafts (12 and 13), adjusting the heights of the middle bearings (5 and 7), and then screwing bolts. The one-step centering ship shafting mounting method provided by the invention solves the problems that the ship shafting has the defects of large centering tolerance, large ship body vibration, large working amount and the like.

Description

technical field [0001] The invention belongs to the field of ship shafting centering installation, and in particular relates to a one-time centering ship shafting installation method. Background technique [0002] Ship shafting refers to the general term for power transmission components from the output end of the main engine or transmission to the propeller. The components of the shafting system include propellers, intermediate shafts, thrust shafts, intermediate bearings, thrust bearings, stern tubes, etc. Shafting Located between the main engine and the propeller. The main function of the shafting is: to transmit the power from the main engine of the ship to the propeller, and at the same time transmit the axial reverse thrust generated by the propeller rotating in the water to the hull through the thrust bearing in the shafting, so that the ship can sail according to the driving command. Since the main engine is the largest power source on board, it can be said that the...

Claims

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Application Information

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IPC IPC(8): B63B9/00
Inventor 覃广初
Owner 中船桂江造船有限公司
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