Machining method for special corner of large-size hole compressor
A processing method and compressor technology, which is applied in the field of corner casings of compressors, can solve the problems of not reaching the shape and position accuracy, dimensional accuracy and roughness accuracy of corner casing processing, and achieve the effect of improving shape and position accuracy
Active Publication Date: 2022-08-05
SHENYANG BLOWER WORKS GROUP CORP
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Problems solved by technology
[0003]
Since the corner casing has a special structure and is an important pressure-bearing part of the overall circulation part of the cave compressor unit, that is, ordinary processing methods cannot reach the machining shape and position accuracy, dimensional accuracy and roughness accuracy of the corner casing.
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[0074] As an embodiment, taking the support foot 3 as a reference, it includes:
[0075] Put the legs 3 of the first curved shell 1 and / or the legs 3 of the second curved shell 2 on the working surface, and make the legs 3 on the first curved shell 1 connect with the working surface to support the first curved shell 1 , the feet 3 on the second curved shell 2 are connected to the working surface to support the second curved shell 2; check the machining allowance size of the first curved shell 1 or the second curved shell 2, wherein the machining allowance size conforms to the preset Set the processing size; fill the gasket between the feet 3 and the working surface, so that the end faces of the feet 3 are on the same level.
[0076] Further, the first curved shell 1 and / or the second curved shell 2 are placed on the work surface, the first curved shell 1 and the second curved shell 2 are leveled, and a line is performed, that is, a machining reference line. Wherein, the first...
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The invention provides a machining method for a special corner of a large hole compressor. The compressor comprises a first curved shell and a second curved shell. The first curved shell comprises a first contact surface, the second curved shell comprises a second contact surface, during assembly, the first contact surface is connected with the second contact surface to form a horizontal split surface, the end surface of the first curved shell and the end surface of the second curved shell are combined to form a vertical split surface, and supporting legs are arranged on the first curved shell and the second curved shell; the machining method comprises the steps that first-time machining, second-time machining and third-time machining are conducted on the first curved shell and the second curved shell along a datum line; wherein the first-time processing of the first curved shell and the second curved shell comprises the following steps of: carrying out first-time processing on the first contact surface and the second contact surface; and the shape and position precision, the size precision and the roughness precision of special corner machining of the hole body compressor are improved.
Description
technical field [0001] The application belongs to the technical field of compressor corner casings, and in particular relates to a processing method for a special corner of a large-scale cavity compressor. Background technique [0002] The existing large-scale cave compressor unit is an axial-flow compressor unit applied to simulated flight experiment equipment. The corner casing is an important pressure-bearing component of the overall flow-through part of the compressor unit in this cave. Its structure is a special orthogonal intersecting horizontally split large cylindrical welded workpiece. The corner upper casing and the corner lower casing are connected by bolts through a horizontal midplane with a length of 8m × 8m; the two ends of the corner are circular vertical vertical planes with a diameter greater than 6m, and the vertical planes are respectively connected with the compressor in the cave. air inlet and outlet piping connections. [0003] Because the structure...
Claims
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王安妮张勇卞长崎申家智
Owner SHENYANG BLOWER WORKS GROUP CORP