Tool and method for assembling spindle head and center pull rod of gas turbine

Abstract

The invention discloses a tool for assembling a spindle head and a center pull rod of a gas turbine, wherein the spindle head is provided with a bearing guard, and a clutch and a step-type joint part provided with a threaded bland hole arranged on the head and the tail of the bearing guard respectively, and the head of the center pull rod is provided with a threaded section matched with the threaded blind hole of the joint part of the spindle head. The tool comprises a plurality of roller wheel supporting frames for up-bearing the center pull rod and a spindle head supporting frame, wherein the spindle head supporting frame comprises a bed body, a pair of linear guide rails axially arranged on the bed body, a dragging plate arranged on the bed body and capable of moving forwards and backwards along the linear guide rails, V-shaped lug supports arranged on the dragging plate in tandem and pushing screws at least arranged on two sides of one of the V-shaped lug supports; and the head clutch of the spindle head is supported on the V-shaped lug support at the front end of the dragging plate, while the joint part at the tail of the spindle head is supported on the V-shaped lug support at the rear end of the dragging plate. The invention also discloses a method for assembling the spindle head and the center pull rod of the gas turbine, which is carried out on the assembling tool.

Description

technical field [0001] The invention relates to an assembly tool and method for a gas turbine rotor, in particular to a tool and an assembly method for assembling a gas turbine shaft head and a center tie rod. Background technique [0002] The first step of gas turbine assembly is to screw the rotor shaft head and the center tie rod. The weight of the shaft head and the center tie rod are 4.25 tons and 4.5 tons respectively, and the screw thread is M300X6. The requirements are high. The assembly method of the foreign existing technology is: first place the center tie rod horizontally on the roller bracket, and at the same time use a special adjustable roller frame to support the shaft head, and use a high-precision crane to lift the shaft head to adjust the level of the shaft head, and then pass the driving to adjust the level of the shaft head. Accurately adjust the relative center position of the shaft head and the center tie rod, and then screw them together. While rotat...

AI Technical Summary

Problems solved by technology

The entire screwing process, in addition to requiring a special front axle head roller frame, the most important thing is the fine-tuning crane, because there is no production capacity of this type of crane in China, and if this technology is used, the operation method requires personnel Operation has a great influence on the quality of screwing

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