Self-gravity effect-based marine diesel engine connecting rod turning over device and method

Abstract

The invention discloses a self-gravity effect-based marine diesel engine connecting rod turning over device and method. The device comprises a bottom plate, two hoop wheels and two supports; the two supports are fixed on the bottom plate in parallel, and the supports are provided with inclined planes forming inclined angles with the horizontal plane; the shapes of the hoop wheels are cylindrical,the interiors of the hoop wheels are matched with the shape of a rod body of a connecting rod, and the two hoop wheels are fixed at the two ends of the connecting rod; and by virtue of self-gravity, the connecting rod autonomously rolls on the inclined planes of the supports from a high position to a low position along with the two hoop wheels, so that 180-degree automatic turning over is realized. According to the device and method, quick automatic turning over of the connecting rod is completed by utilizing the gravity of the connecting rod and by virtue of a special auxiliary device; the device has the advantages of being simple in structure, easy and convenient to operate, safe and reliable, convenient to maintain and high in universality; the effects of reducing the inertia impact force, relieving the labor intensity, improving the production efficiency and improving the operation safety are achieved; and the device is suitable for automatic turning over operation of various typesof large diesel engine connecting rods.

Description

technical field [0001] The invention relates to a manufacturing process of a marine diesel engine, in particular to a turning device and method for a connecting rod of a marine diesel engine based on its own gravity, and belongs to the technical field of lifting. Background technique [0002] At present, for turning over operation of large-scale connecting rod of marine diesel engine, there is not yet a kind of relatively safe, stable, automatic turning over device and method. Since the structural features of the connecting rods of diesel engines are both thin-walled ring-shaped big heads connected to the crankshaft, small heads connected to the crosshead pins, and oblate rod shafts, their shapes are complex and irregular, so the turning operation of the connecting rods brought difficulty. The traditional turning method for large connecting rods is to use wire ropes to lift the connecting rods in the air. Due to the irregular shape, large mass and unstable center of gravity...

AI Technical Summary

Problems solved by technology

Since the structural features of the connecting rod of a diesel engine are both thin-walled ring-shaped big head connected to the crankshaft, small head connected to the crosshead pin and oblate rod body, its shape is complex and irregular, so the turning operation of the connecting rod brings difficulty

The traditional turning method for large connecting rods is to use wire ropes to lift the connecting rods in the air. Due to the irregular shape, large mass and unstable center of gravity of the connecting rods of marine diesel engines, it is easy to cause a gap between the connecting rod shaft and the wire rope during the turning process. The relative sliding and swaying of the connecting rod, and even the rolling of the connecting rod will cause inertial impact, so the existing method of turning over the connecting rod of the marine diesel engine has a large safety hazard, and at the same time, the operator has high labor intensity and difficult operation when the connecting rod is lifted and turned over. Defects of high difficulty and low production efficiency

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