CN-121989068-A - Tool clamp for stationary blade sealing member and processing method of stationary blade sealing member

CN121989068ACN 121989068 ACN121989068 ACN 121989068ACN-121989068-A

Abstract

The application discloses a fixture of a stator blade sealing element and a processing method of the stator blade sealing element, wherein the stator blade sealing element comprises a left sealing element and a right sealing element, the left sealing element and the right sealing element are part of revolution bodies, the left sealing element is provided with a left middle split surface, the right sealing element is provided with a right middle split surface, and the processing method comprises the steps of processing the left sealing element; the method comprises the steps of machining a right sealing element, assembling the left sealing element and the right sealing element to form a semicircular sealing element, aligning a left bisection surface with a right bisection surface to form a sealing bisection surface, connecting the sealing bisection surfaces of the two semicircular sealing elements to form a static blade sealing element, and machining the static blade sealing element. According to the application, the stator blade sealing element is gradually processed in the process of assembling the stator blade sealing element, and the local processing mode and the integral processing mode are combined with each other, so that the processing mode of the stator blade sealing element is effectively optimized, and the processing difficulty and the clamping difficulty of the stator blade sealing element serving as a thin-wall structure are reduced.

Inventors

CONG HANSONG
JIN XING
LI LIN
BAI JUNFENG
ZHANG WEI
LIU PENG
LIU QIANXIANG

Assignees

沈阳透平机械股份有限公司
沈鼓集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260209

Claims (10)

1. Frock clamp of quiet leaf sealing member, its characterized in that includes: A clamp body; the bottom of the matching piece is connected with the top of the clamp body through a spigot; The pressing plate is used for pressing the stationary blade sealing element on the matched element, so that two sides of the stationary blade sealing element are respectively connected with the pressing plate and the matched element through rabbets; and the connecting piece is used for connecting the pressing plate and the clamp body.
2. A method of machining a vane seal, characterized in that the vane seal is clamped by a tool clamp for a vane seal according to claim 1, the vane seal includes a left seal and a right seal, the left seal and the right seal are part of a revolution body, the left seal is provided with a left bisecting plane, the right seal is provided with a right bisecting plane, the method comprising: Machining the left seal; processing the right sealing element, wherein the processing step of the right sealing element is the same as that of the left sealing element; Assembling the left sealing piece and the right sealing piece to form a semicircular sealing piece, and aligning the left bisection surface and the right bisection surface to form a sealing bisection surface; connecting the seal bisection surfaces of two of the semicircular seals to form a vane seal; and machining the stator blade sealing member.
3. The method of machining a vane seal according to claim 2, characterized in that the step of machining a left seal specifically includes: performing first machining on the left sealing piece to enable the left sealing piece to leave machining allowance with preset thickness; and performing secondary processing on the left sealing piece, and reducing the processing allowance.
4. The method for machining a stationary blade seal according to claim 3, wherein the left seal member is provided with a left end face, a right end face, an outer circumferential face, and an inner circumferential face, and the step of performing the first machining of the left seal member to leave a machining allowance of a predetermined thickness for the left seal member comprises: processing the left middle split surface; Machining the left end face, the right end face, the outer circumferential face and the inner circumferential face; and processing a mounting hole on the outer circumferential surface, wherein the mounting hole is used for being matched with the stationary blade.
5. The method of machining a vane seal according to claim 4, wherein the step of performing the second machining on the left seal member to reduce the machining allowance comprises: processing the left middle split surface; and processing the right end face and the inner circumferential face.
6. The method of machining a vane seal according to any one of claims 2 to 5, further comprising, after the step of assembling the left seal with the right seal to form a semi-circular seal, aligning the left and right bisecting surfaces to form a seal bisecting surface: performing first processing on the sealing center facet, and leveling by taking the lowest point of the sealing center facet as a reference; and carrying out secondary processing on the sealing bisection surface.
7. The method of processing a vane seal according to claim 4, characterized in that the step of processing the vane seal specifically comprises: machining the outer circumferential surface and the left end surface of the static blade sealing element; processing an inner hole on the left end surface of the stationary blade sealing member, wherein the inner hole is used for being matched with the inner circle sealing member; And machining the mounting holes on the outer circumferential surface of the stator blade sealing member.
8. The method of machining a vane seal of claim 7, further comprising, after the step of performing a second machining on the left seal: Processing a centering part on the left end face, wherein the centering part is provided with a centering plane which is parallel to the left middle split surface; Before the step of machining the mounting hole on the outer circumferential surface of the stationary blade seal member, further comprising: And aligning the left end face and the outer circumferential face of the stator blade sealing element based on the alignment plane.
9. The method of machining a vane seal according to claim 8, further comprising, after the step of machining the mounting hole on the outer circumferential surface of the vane seal: And removing the alignment part.
10. The method of machining a vane seal according to any one of claims 3 to 5, further comprising, before the step of performing the second machining on the left seal, reducing the machining allowance: the left seal is stress relieved.

Description

Tool clamp for stationary blade sealing member and processing method of stationary blade sealing member Technical Field The application relates to the technical field of machining, in particular to a fixture clamp of a stationary blade sealing member and a machining method of the stationary blade sealing member. Background The large-scale air separation device is an indispensable important device in metallurgical, petrochemical and coal chemical engineering projects, the stationary blade sealing member is used for the stationary blade tips of the first stages of the air compressor, and because the stationary blade sealing member is a typical thin-wall member structure, and the stator blade sealing member needs to process a plurality of stator blade mounting holes which are uniformly distributed along the circumferential direction, so that the stator blade sealing member is extremely easy to deform during processing, the production difficulty of the stator blade sealing member is increased, the processing quality of the stator blade sealing member is reduced, and the stator blade sealing member is easy to be scrapped due to the excessive size. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art or related art. According to the technical scheme, the fixture clamp for the stator blade sealing element comprises a clamp body, a matching piece, a pressing plate and a connecting piece, wherein the bottom of the matching piece is connected with the top of the clamp body through a spigot, the pressing plate is used for pressing the stator blade sealing element on the matching piece, two sides of the stator blade sealing element are respectively connected with the pressing plate and the matching piece through the spigot, and the connecting piece is connected with the pressing plate and the clamp body. According to the second aspect of the technical scheme, the processing method of the stator blade sealing member is provided, the stator blade sealing member is clamped by the tool clamp of the stator blade sealing member provided by any one of the technical scheme, the stator blade sealing member comprises a left sealing member and a right sealing member, the left sealing member and the right sealing member are part of revolution bodies, the left sealing member is provided with a left middle division surface, the right sealing member is provided with a right middle division surface, the processing method comprises the steps of processing the left sealing member, processing the right sealing member, processing steps of the right sealing member are identical to those of the left sealing member, the left sealing member and the right sealing member are assembled to form a semicircular sealing member, the left middle division surface and the right middle division surface are aligned to form a sealing middle division surface, the sealing middle division surfaces of the two semicircular sealing members are connected to form the stator blade sealing member, and the stator blade sealing member is processed. In some technical schemes provided by the application, the step of processing the left sealing element comprises the steps of processing the left sealing element for the first time to ensure that the left sealing element leaves the processing allowance of preset thickness, and processing the left sealing element for the second time to reduce the processing allowance. In some technical schemes provided by the application, the left sealing piece is provided with a left end face, a right end face, an outer circumferential face and an inner circumferential face, and the left sealing piece is processed for the first time, so that the left sealing piece is left with a processing allowance with preset thickness. In some technical schemes provided by the application, the step of carrying out secondary processing on the left sealing element and reducing the processing allowance comprises the steps of processing a left middle split surface, and processing a right end surface and an inner circumferential surface. In some technical schemes provided by the application, after the steps of assembling the left sealing element and the right sealing element to form a semicircular sealing element and aligning the left bisection surface and the right bisection surface to form a sealing bisection surface, the method further comprises the steps of carrying out first processing on the sealing bisection surface, carrying out leveling by taking the lowest point of the sealing bisection surface as a reference, and carrying out second processing on the sealing bisection surface. In some technical schemes provided by the application, the step of processing the stator blade sealing element comprises the steps of processing the outer circumferential surface and the left end surface of the stator blade sealing element, processing an inner hole on the left end surface of the stator