Lifting tool for frequency modulation wheel of marine low-speed diesel engine and method

Abstract

The invention discloses a lifting tool for a frequency modulation wheel of a marine low-speed diesel engine. The lifting tool comprises a lifting column, an adjustable eccentric connecting plate, an eccentric lifting plate, a plurality of auxiliary lifting plates and four lifting cantilevers, wherein the lower portion of the lifting column is of an inclined cross structure, the adjustable eccentric connecting plate is fixedly connected to one side of the upper portion of the lifting column, the eccentric lifting plate is connected to the adjustable eccentric connecting plate in a position-adjustable mode and used for vertically hoisting the frequency modulation wheel, the auxiliary lifting plates are fixedly connected to the top end, the bottom end and the back portion of the lifting column correspondingly, and are used for moving and turning over the lifting tool and adjusting position deviation so as to achieve the vertical lifting state of the frequency modulation wheel, and four lifting cantilevers are horizontally and fixedly connected to the inclined cross-shaped structure of the lifting column, located on the same side of the adjustable eccentric connecting plate and the eccentric lifting plate and connected to the frequency modulation wheel through bolts. According to the lifting tool for frequency modulation wheel of marine low-speed diesel engine and the method, the vertical lifting of different eccentric frequency modulation wheels is realized, the lifting tool and the method are suitable for different working conditions, improves the lifting state, reduces the working intensity, and have the advantages of convenience in loading and unloading, stability in operation, safety and reliability.

Description

technical field [0001] The invention relates to manufacturing process equipment for marine diesel engines, in particular to a lifting tool and method for a marine low-speed diesel engine frequency modulation wheel, belonging to the technical field of diesel engine manufacturing. Background technique [0002] The frequency modulation wheel of the marine low-speed diesel engine, also known as the auxiliary flywheel, is often used to optimize the vibration of the marine diesel engine. The main purpose is to reduce the torsional vibration stress of the diesel engine shafting. like figure 1 As shown, there is a bolt hole B1 around the center hole of the frequency modulation wheel B, and a process hole B2 is arranged on the wheel hub. [0003] like figure 2 As shown, the frequency tuning wheel B is installed on the flange of the free end of the crankshaft A of the diesel engine through fastening bolts and bolt holes B1. When the diesel engine is produced and tested, the freque...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the existing FM wheel lifting method, aiming at the working conditions when the diesel engine structure is completely installed, to provide a lifting tool and method for the marine low-speed diesel engine FM wheel, in the state of the end face of the crankshaft retracted. The problem of serious eccentricity of the frequency modulation wheel makes the frequency modulation wheel reach a vertical state, realizes the smooth hoisting of the frequency modulation wheel, and smoothly connects or disengages with the crankshaft, so as to improve the lifting state, reduce the working intensity, facilitate installation and operation, and meet different working conditions and different eccentric frequency modulation Effect of wheel loading and unloading requirements

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