A method for bellows installation

Abstract

The invention discloses a device and method for mounting of a corrugated pipe. The device comprises a left flange and a right flange. The left flange and the right flange clamp the two ends of the corrugated pipe correspondingly and are connected in the axial direction through screws and nuts, and the screws and the nuts tighten the left flange and the right flange and enable the spacing between the two ends of the corrugated pipe to be decreased; during mounting, firstly the left flange and the right flange are fixed to the two ends of the corrugated pipe through bolts correspondingly, then the screws are mounted, the spacing between the two flanges is decreased through the nuts, and accordingly the length of the corrugated pipe is decreased; and the device and the corrugated pipe are hoisted to be placed on the mounting positions, then the nuts are loosened, and accordingly the corrugated pipe expands, so that mounting is completed. Operation is easy and convenient, the time and labor are saved, and mounting of the corrugated pipe is simplified; the sealing face and the outer surface of the corrugated pipe can be well protected, the bumping damage is avoided, the corrugated pipeis protected to the maximum extent, and the mounting quality is guaranteed; and the device and method for mounting of the corrugated pipe are especially suitable for mounting of the PC2-6-type and PC2-6B-type corrugated pipes.

Description

technical field [0001] The invention relates to the assembly of diesel engines, in particular to a method for installing corrugated pipes of diesel engines, and belongs to the technical field of diesel engine manufacturing. Background technique [0002] During the installation of marine diesel engine bellows, please refer to figure 1 with figure 2 , firstly the bellows 02 needs to be compressed to shorten the length of both ends, and then installed between the pipelines of the fixed high-temperature exhaust pipe 01; when the compressed bellows 02 is placed in the installation position, the installation device Re-expand the bellows 02 to the installation length; after the bellows 02 expands to the installation length, remove the installation device from the bellows 02; place a sealing gasket 04 between the sealing surfaces at both ends of the bellows 02 and the exhaust pipe 01, Finally, the joint between the corrugated pipe 02 and the exhaust pipe 01 is clamped with the cl...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the tool used to compress the bellows is pressed against the sealing surfaces at both ends of the bellows. Since the stainless steel bellows membrane surface on the bellows is generally thin, the compression tool will damage the sealing surfaces at both ends of the bellows. Destroy its flatness, thereby affecting the sealing performance of the bellows under high temperature conditions; and the U-shaped clip itself will also damage the flatness of the sealing end faces on both sides of the bellows; Knocked out of the bellows, which may damage the outer surface of the bellows and the surface of the stainless steel bellows membrane

In short, the existing installation devices and methods for bellows will damage the sealing surface, outer surface and bellows membrane surface of the bellows during the installation process of the bellows

Images