Engine fan rotor primary wheel disc disassembling device

Abstract

The invention discloses an engine fan rotor primary wheel disc disassembling device. The engine fan rotor primary wheel disc disassembling device comprises hook plates and a bracket; each hook plate is in an L shape and comprises a horizontal part and a vertical part; the bracket comprises an upper disc and a lower ring which are fixedly connected through supporting pipes; the upper disc is in threaded connection with a forcing screw, the lower end of the forcing screw is in clearance fit with a second connection block, and the lower end of the second connection block is fixedly connected withthe upper end of a first connection block; the lower end of the first connection block is in clearance fit with a compression ring, and the vertical parts of the multiple hook plates penetrate through the compression ring and are fixedly connected with the compression ring; during disassembling, the upper end surfaces of the horizontal parts are connected with the lower end surface of a primary wheel disc, the lower end of the compression ring is in interference fit with a center hole of a backing ring, and the lower end of the backing ring is in clearance fit with the diameter step shaft ofthe primary wheel disc; and upward force is applied to the hook plates, the hook plates drive the primary wheel disc to move upwards, accordingly, the primary wheel disc is separated from a secondarydisc drum, and operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of aero-engine assembly, and in particular relates to a dismantling device for a first-stage wheel disk of an engine fan rotor. Background technique [0002] During the process of assembly, commissioning and overhaul of aero-engines, the first-stage disc installed in the fan rotor assembly balance assembly needs to be disassembled many times. figure 1 As shown by the dotted line, it is composed of a small cylindrical section and a wheel disc. There are multiple grooves with a certain width evenly distributed on the largest outer circle of the wheel disc. The mouth is an interference fit and is not easy to decompose. The most reasonable position for the support surface of the decomposition tool is to be arranged near the matching part of the first-stage disc and the second-stage disc drum, and to support the end face of the second-stage disc drum. By studying the shape of the first-stage disc, it is found th...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a dismantling device for the primary disc of the fan rotor of an engine to solve the problem that the primary disc of the fan rotor assembly balance assembly is not easy to disassemble

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