Diesel engine piston assembly lifting tool and lifting method

Abstract

The invention discloses a diesel engine piston assembly lifting tool and lifting method. The lifting tool comprises a hoisting tray, a transverse pin, a clamping ring set and multiple clamping claws.The hoisting tray is located at the top end of a piston. The transverse pin transversely penetrates through the center of a cross-shaped rib plate set of the hoisting tray. The clamping ring set surrounds the radial upper portion of the piston. The outer edge of the upper end of the clamping ring set is fixedly connected to the radial direction of the hoisting tray through multiple bolts and nuts.The sides of the multiple clamping claws fixed to the radial direction of the clamping ring set are embedded into piston grooves of the corresponding positions. The lifting method comprises the stepsthat firstly, the clamping ring set is installed, and the clamping ring set is installed in the upper end of the piston in a sleeved manner; secondly, the clamping claws are installed; thirdly, the hoisting tray is installed; and fourthly, a piston assembly is hoisted and conveyed. The lifting tool is compact in structure and convenient to assemble, the method is simple and easy to implement, thelifting tool can be used for lifting piston assemblies of multiple diesel engine types, universality of the system is improved, and the problem that an existing piston assembly lifting tool cannot beused for lifting and conveying a piston assembly of a type with two piston grooves is solved.

Description

technical field [0001] The invention relates to a lifting tool for an upright disc and round rod assembly, in particular to a lifting tool and method for a piston assembly of an internal combustion engine, and belongs to the technical field of special lifting tools. Background technique [0002] Diesel engine piston assembly (hereinafter referred to as piston assembly) such as figure 1 As shown, it includes a piston 10 and a piston rod 20 that are fixedly connected into one body after assembly. It needs to be lifted in the upright state of the piston 10, but there is no lifting hole on the top of the piston 10, and only several piston grooves are arranged on the outer peripheral surface of the piston 10, which requires special lifting tooling for lifting. Existing special lifting tooling for piston assembly all adopts a diesel engine type to be equipped with a set of lifting tooling, which is not universal. With the optimization and upgrading of the structure of new models...

AI Technical Summary

Problems solved by technology

With the optimization and upgrading of the structure of new models of low-speed diesel engines, the structure of the piston assembly has also changed accordingly. Among them, the piston grooves have changed from the existing three evenly distributed to two symmetrically distributed, so the existing piston assembly has been improved. The tooling is no longer suitable for the lifting of the two-piston grooved piston assembly of the new model diesel engine

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