Spoiler assembly structure and assembly method thereof

Abstract

The invention discloses a spoiler assembling structure and an assembling method thereof. The spoiler assembling structure comprises a first ring, a second ring and a spoiler. A first pin hole is formed in the first ring, a second pin hole is formed in the second ring, a first pin and a second pin are arranged at the two ends of the spoiler, the diameter of the first pin is smaller than that of thefirst pin hole, and the diameter of the second pin is equal to that of the second pin hole. A metal sleeve is arranged between the first pin and the first pin hole, the internal diameter of the metalsleeve is equal to the external diameter of the first pin, the external diameter of the metal sleeve is equal to the internal diameter of the first pin hole, and the height of the metal sleeve is equal to the length of the first pin. No axial force is applied to the spoiler in the assembling process of the spoiler, it is avoided that the spoiler is scrapped due to plastic deformation, the production cost is effectively reduced, meanwhile, the mounting quality of the spoiler is improved, production delivery of a gas turbine is guaranteed, and the effective assembling structure and the mountingmethod convenient to operate are provided in order to solve the problems about assembly of parts of the structures.

Description

technical field [0001] The invention belongs to the technical field of mechanical assembly, and particularly relates to a spoiler assembly structure and an assembly method thereof. Background technique [0002] In order to prevent the occurrence of surge, the anti-surge casing designed and adopted in the gas turbine contains a large number of spoilers. A large number (152) of spoiler exhaust end Ф3 pins need to be assembled into the large ring Ф3 pin holes, and then the small ring corresponding to the Ф5 pin hole sets are fitted into the spoiler intake end Ф5 pins. Due to the large number of spoilers and the large gap in the process of fitting the hole and shaft of the intake end, the spoiler has a greater degree of freedom along the circumference of the pin, and the positioning accuracy is poor, and at the same time, all spoilers at the intake end are guaranteed. The positional accuracy of the Ф5 pin and the difficulty in completing the assembly are great. [0003] In the...

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Problems solved by technology

[0004] In the traditional assembly process, due to the large matching gap between the hole and shaft of the intake port, there is a phenomenon that the spoiler as a whole collapses to one side, resulting in a gap between the end face of the spoiler and the end face of the large and small rings; at the same time, the 1 / 4 circumference of the front assembly In the case of a relatively ideal assembly, the force arm of the elastic deformation of the small ring gradually becomes smaller in 3 / 4 of the post-assembly, and the deformation at the same position as the Ф5 pin position cannot be produced, so a greater axial force needs to be applied to the spoiler , and then in the 3 / 4 circumference of the rear installation, part of the hole axis fits precisely. The end face of the inlet end of the spoiler and the end face of the small ring cannot be tightly matched, and there is a gap of 2 to 5 mm, and because the applied axial force is too large , will cause the spoiler to be scrapped due to plastic deformation, which greatly increases the production cost and makes the production efficiency low

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