CN111238333A - Coloring gauge and coloring inspection method for flow channel surface at inner coating of casing of air compressor - Google Patents
Coloring gauge and coloring inspection method for flow channel surface at inner coating of casing of air compressor Download PDFInfo
- Publication number
- CN111238333A CN111238333A CN202010115800.3A CN202010115800A CN111238333A CN 111238333 A CN111238333 A CN 111238333A CN 202010115800 A CN202010115800 A CN 202010115800A CN 111238333 A CN111238333 A CN 111238333A
- Authority
- CN
- China
- Prior art keywords
- coloring
- compressor casing
- gauge
- plug gauge
- flow passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
Abstract
The invention discloses a coloring gauge and a coloring inspection method for a flow passage surface at a coating in a compressor casing, the coloring gauge comprises a positioning bush for positioning and installing at the end surface of the input end of the compressor casing and a plug gauge installed on the positioning bush and used for extending from the input end of the compressor casing to the flow passage surface in the compressor casing for coloring inspection, the positioning bush is provided with a first reference surface for matching and jointing with the end surface of the input end of the compressor casing, the measuring end of the plug gauge is provided with a coloring surface matched with a standard flow passage surface and used for coating a coloring agent, the installing end of the plug gauge is installed on the positioning bush, the relative position relationship between the coloring surface and the first reference surface is the same as the relative position relationship between the standard flow passage surface and the end surface of the input end of the compressor casing, the plug gauge is positioned and installed at the end face of the input end of the compressor casing through the positioning bushing, so that the coloring surface coated with the coloring agent on the plug gauge colors the flow channel surface at the inner coating of the compressor casing.
Description
Technical Field
The invention relates to the technical field of dimension inspection of a flow channel surface in an air compressor casing, in particular to a coloring gauge and a coloring inspection method of the flow channel surface at a coating in the air compressor casing.
Background
The working process of the turbine shaft aero-engine comprises the following steps: air inlet of an air inlet channel → pressurization of the air compressor → heating of a combustion chamber → expansion of the turbine to do work so as to drive the air compressor and the rotor wing → exhaust to the outside. The function of the air compressor of the aircraft engine is to add power and pressurize, namely, to compress the gas to improve the pressure of the gas, and a designed engine can not always work in a designed state, and the pressure increasing ratio and the efficiency of the air compressor can be changed due to the change of the size of a flow passage of the air compressor. The compressor has high efficiency, small size, light weight, enough stable working range, safe and reliable work and is more beneficial to the engine under the condition of meeting the required pressure ratio of the aero-engine. At present, the radial dimension of a plurality of points on the flow passage surface of the compressor casing is measured by a three-coordinate measuring machine to judge whether the requirement is met, and the radial dimension of the flow passage surface is gradually changed along the axial direction of the compressor casing, so that the dimension condition of the whole flow passage surface cannot be reflected by measuring only a plurality of points.
Disclosure of Invention
The invention provides a coloring gauge and a coloring inspection method for a flow passage surface at a coating in an air compressor casing, which are used for solving the technical problem that the size condition of the whole flow passage surface cannot be reflected by the inspection of the flow passage surface of the air compressor casing at present.
According to one aspect of the invention, a coloring gauge is provided for checking whether the size of a flow passage surface at the inner coating of a compressor casing is qualified, the inner diameter size of an input end of the compressor casing is larger than the inner diameter size of the flow passage surface, the coloring gauge comprises a positioning bushing for positioning and installing at the end surface of the input end of the compressor casing and a plug gauge installed on the positioning bushing and used for extending from the input end of the compressor casing to the flow passage surface of the compressor casing for coloring check, the positioning bushing is provided with a first reference surface for matching and jointing with the end surface of the input end of the compressor casing, the measuring end of the plug gauge is provided with a coloring surface matched with a standard flow passage surface and used for coating a coloring agent, the installing end of the plug gauge is installed on the positioning bushing, the relative position relationship between the coloring surface and the first reference surface is the same as the relative position relationship between the standard flow passage surface and the end surface, the positioning bush is positioned and installed at the end face of the input end of the compressor casing, so that the coloring surface coated with the coloring agent on the plug gauge colors the runner surface at the inner coating of the compressor casing, and whether the size of the runner surface is qualified or not is judged according to the difference between the coloring area of the runner surface and the total area of the coloring surface.
Further, a second reference surface parallel to the first reference surface is arranged on the positioning bush, the second reference surface is arranged on the surface, opposite to the first reference surface, of the positioning bush, the axial distance between the first reference surface and the end surface of the input end of the compressor casing and the standard flow passage surface is a standard axial distance, the mounting end of the plug gauge is connected with the positioning bush in a sliding mode along the axial direction of the compressor casing, the end surface of the mounting end of the plug gauge is a measuring surface parallel to the second reference surface, the mounting end of the plug gauge is made to slide axially along the compressor casing so that the measuring end of the plug gauge is plugged in the flow passage surface in the compressor casing, whether the axial distance between the flow passage surface and the end surface of the input end of the compressor casing is a standard axial distance or not is judged according to the relative position relationship between the measuring surface and the second reference surface, and the axial distance between the flow passage surface and the end surface of the input end of the compressor casing 100 is not more than the maximum allowable axial distance, the axial distance from the runner surface to the end surface of the compressor casing is qualified.
The axial distance from the inner step surface to the coloring surface is larger than or equal to the minimum allowable axial distance, the axial distance from the outer step surface to the coloring surface is smaller than or equal to the maximum allowable axial distance, the mounting end of the plug gauge slides axially along the compressor casing to plug the measuring end of the plug gauge at the inner flow passage surface of the compressor casing, and whether the axial distance from the flow passage surface to the end surface of the compressor casing is qualified is judged according to the relative position relation of the second reference surface, the inner step surface and the outer step surface.
Further, the second reference surface, the outer step surface and the inner step surface are arranged in a matching mode.
Furthermore, a mounting hole for mounting the plug gauge is formed in the positioning bushing in the axial direction of the compressor casing, and the mounting end of the plug gauge is in clearance fit with the mounting hole so that the mounting end of the plug gauge slides in the mounting hole in the axial direction.
Furthermore, the outer wall surface of the mounting end of the plug gauge is provided with a sliding groove along the axial direction, and the positioning bushing is provided with a limiting piece inserted into the sliding groove so as to guide the plug gauge in a sliding manner and limit the sliding range of the mounting end of the plug gauge.
Furthermore, the positioning bushing and the plug gauge are uniformly provided with lightening holes along the circumferential direction, so that the gravity of the structure is lightened.
According to another aspect of the present invention, there is provided a coloring inspection method for a flow channel surface at an internal coating of a compressor casing, for inspecting whether a size of the flow channel surface at the internal coating of the compressor casing is qualified, using the coloring gauge, including the steps of: cleaning a compressor case and a coloring gauge; the input end of a casing of the gas compressor faces upwards and is vertically placed on an operation table; uniformly coating a layer of coloring agent on a coloring surface of a coloring gauge, extending a plug gauge of the coloring gauge into the compressor casing from the input end of the compressor casing, matching and attaching a first reference surface of a positioning bush with the end surface of the input end of the compressor casing, and axially moving the plug gauge (2) so as to color a flow passage surface in the compressor casing by the coloring surface of the coloring gauge; after standing for a period of time, taking out the coloring gauge from the compressor casing; and judging whether the size of the runner surface is qualified or not according to the difference between the colored area of the runner surface and the total area of the colored surface.
Further, the standing time of the staining gauge is not less than 30 seconds.
Further, whether the flow channel surface is uniformly colored or not is observed, the blank areas are a plurality of scattered areas, the total area of the blank areas is controlled to be less than or equal to 10% of the total area of the colored surface, the size of the flow channel surface is qualified, and otherwise, the size of the flow channel surface is unqualified.
The invention has the following beneficial effects:
the coloring gauge is provided with the plug gauge, the measuring end of the plug gauge is provided with a coloring surface which is matched with a standard flow passage surface and used for coating a coloring agent, the mounting end of the plug gauge is mounted on the positioning bushing, the positioning bushing is fixedly mounted at the input end surface of the compressor casing by arranging the first reference surface which is matched with the input end surface of the compressor casing on the positioning bushing, the measuring end of the plug gauge extends into the flow passage surface in the compressor casing, the flow passage surface is colored through the coloring surface, the colored area on the flow passage surface can reflect the size condition of the whole flow passage surface, and whether the size of the flow passage surface is qualified or not is judged according to the difference between the colored area of the flow passage surface and the total area of the colored surface.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a compressor case of a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of a staining gauge of a preferred embodiment of the invention;
FIG. 3 is a schematic diagram of the construction of a plug gauge in accordance with a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of the construction of a coloring gauge according to another embodiment of the present invention.
Illustration of the drawings:
1. positioning the bushing; 11. a first reference plane; 12. a second reference plane; 2. a plug gauge; 21. coloring surface; 22. measuring the surface; 221. an inner step surface; 222. an outer step surface; 100. a compressor casing; 101. a first flow path surface; 102. a second flow field surface.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
FIG. 1 is a schematic structural view of a compressor case of a preferred embodiment of the present invention; FIG. 2 is a schematic diagram of the construction of a staining gauge of a preferred embodiment of the invention; FIG. 3 is a schematic diagram of the construction of a plug gauge in accordance with a preferred embodiment of the present invention; fig. 4 is a schematic diagram of the construction of a coloring gauge according to another embodiment of the present invention.
As shown in fig. 1 and fig. 2, the coloring gauge of the present embodiment is used for checking whether the size of the flow passage surface at the inner coating of the compressor casing 100 is qualified, the inner diameter size of the input end of the compressor casing 100 is larger than the inner diameter size of the flow passage surface, the coloring gauge includes a positioning bushing 1 for positioning and mounting at the input end surface of the compressor casing 100 and a plug gauge 2 mounted on the positioning bushing 1 for performing coloring check at the position of the flow passage surface extending from the input end of the compressor casing 100 into the compressor casing 100, the positioning bushing 1 is provided with a first reference surface 11 for matching and fitting with the input end surface of the compressor casing 100, the measuring end of the plug gauge 2 is provided with a coloring surface 21 matched with the standard flow passage surface for coating a colorant, the mounting end of the plug gauge 2 is mounted on the positioning bushing 1, the relative position relationship between the coloring surface 21 and the first reference surface 11 is the same as the relative position relationship between the standard flow passage surface and the input end surface of, the positioning bush 1 is positioned and installed at the end face of the input end of the compressor casing 100, so that the coloring surface 21 coated with the colorant on the plug gauge 2 colors the runner surface at the inner coating of the compressor casing 100, and whether the size of the runner surface is qualified or not is judged according to the difference between the coloring area of the runner surface and the total area of the coloring surface 21. According to the coloring gauge, the plug gauge 2 is arranged, the measuring end of the plug gauge 2 is provided with the coloring surface 21 which is matched with a standard flow passage surface and used for coating a coloring agent, the mounting end of the plug gauge 2 is mounted on the positioning bushing 1, the positioning bushing 1 is provided with the first reference surface 11 which is matched with the input end surface of the compressor casing 100, so that the positioning bushing 1 is positioned and mounted at the input end surface of the compressor casing 100, the measuring end of the plug gauge 2 extends into the flow passage surface in the compressor casing 100, the flow passage surface is colored through the coloring surface 21, the colored area on the flow passage surface can reflect the size condition of the whole flow passage surface, and whether the size of the flow passage surface is qualified or not is judged according to the difference between the area of the coloring surface 21 of the flow passage surface and the total area of the coloring surface 21. The dimensions of the flowpath face include a radial dimension of the flowpath face, a length dimension of the flowpath face, and an axial distance between the flowpath face and the input end face of the compressor case 100.
As shown in fig. 1, a compressor casing 100 of the present embodiment has a first flow path surface 101 corresponding to a primary disk and a second flow path surface 102 corresponding to a secondary disk. The first channel surface 101 and the second channel surface 102 are inspected for coloration by two different-sized coloration gauges. Optionally, the coloring gauge includes a positioning bushing 1, a first plug gauge and a second plug gauge, the positioning bushing 1 is provided with a first reference surface 11 matched with the input end surface of the compressor casing 100, the measuring end of the first plug gauge is provided with a first coloring surface matched with the standard first flow passage surface 101 for coating the colorant, and the measuring end of the second plug gauge is provided with a second coloring surface matched with the standard second flow passage surface 102 for coating the colorant. During inspection, the mounting end of the first plug gauge is mounted on the positioning bush 1, a layer of colorant is coated on a first coloring surface, the first reference surface 11 of the positioning bush 1 is positioned and mounted on the input end surface of the compressor casing 100, the testing end of the first plug gauge extends into the compressor casing 100, the first flow channel surface 101 is colored through the first coloring surface, and whether the size of the first flow channel surface 101 is qualified or not is judged according to the difference between the coloring area of the first flow channel surface 101 and the total area of the first coloring surface; the first plug gauge is taken down from the positioning bush 1, the mounting end of the second plug gauge is mounted on the positioning bush 1, a layer of coloring agent is coated on the second coloring surface, the first reference surface 11 of the positioning bush 1 is positioned and mounted on the input end face of the compressor casing 100, the testing end of the second plug gauge extends into the compressor casing 100, the second flow passage surface 102 is colored through the second coloring surface, and whether the size of the second flow passage surface 102 is qualified or not is judged according to the difference between the coloring area of the second flow passage surface 102 and the total area of the second coloring surface. Optionally, the mounting end of the plug gauge 2 is mounted on the locating bush 1. The testing end of the plug gauge 2 is provided with a first colored surface for applying a colorant that matches the standard first flow path surface 101 and a second colored surface for applying a colorant that matches the standard second flow path surface 102. During inspection, the first reference surface 11 of the positioning bush 1 is positioned and installed on the input end face of the compressor casing 100, the testing end of the plug gauge 2 extends into the compressor casing 100, the first flow passage surface 101 is colored through the first coloring surface, the second flow passage surface 102 is colored through the second coloring surface, and whether the sizes of the first flow passage surface 101 and the second flow passage surface 102 are qualified or not is judged according to the difference between the coloring area of the first flow passage surface 101 and the total area of the first coloring surface and the difference between the coloring area of the second flow passage surface 102 and the total area of the second coloring surface.
As shown in fig. 2, a second reference surface 12 parallel to the first reference surface 11 is provided on the positioning bush 1, the second reference surface 12 is located on a surface of the positioning bush 1 opposite to the first reference surface 11, the first reference surface 11 and an axial distance from an end surface of an input end of the compressor casing 100 to a standard flow passage surface are standard axial distances, a mounting end of the plug gauge 2 is slidably connected with the positioning bush 1 in an axial direction of the compressor casing 100, an end surface of the mounting end of the plug gauge 2 is a measurement surface 22 parallel to the second reference surface 12, the mounting end of the plug gauge 2 is axially slid along the compressor casing 100 to plug the measurement end of the plug gauge 2 at the flow passage surface in the compressor casing 100, and whether an axial distance from the flow passage surface to the end surface of the input end of the compressor casing 100 is a standard axial distance is determined according to a relative position relationship between the measurement surface 22 and the second reference surface 12, and the axial distance from the flow passage surface to the end surface of the input end of the compressor casing 100 is not less than a maximum allowable axial distance and not less than And if the axial distance is allowed, the axial distance from the flow channel surface to the end surface of the compressor casing 100 is qualified. The axial distance between the flow path surface and the end surface of the input end of the compressor casing 100 is qualified when the axial distance is within the tolerance band range. During inspection, by measuring the distance between the measuring surface 22 and the second reference surface 12, if the deviation of the axial distance between the flow channel surface and the end surface of the input end of the compressor casing 100 is within the tolerance range, whether the length dimension and the radial dimension of the flow channel surface are qualified is judged according to the difference between the area of the colored surface 21 of the flow channel surface and the total area of the colored surface 21; if the deviation of the axial distance between the flow passage surface and the end surface of the input end of the compressor casing 100 is outside the tolerance range, and the axial distance between the flow passage surface and the end surface of the input end of the compressor casing 100 is unqualified, whether the length dimension and the radial dimension of the flow passage surface are qualified or not does not need to be judged according to the difference between the area of the colored surface 21 of the flow passage surface and the total area of the colored surface 21.
As shown in fig. 3, the measuring surface 22 is a stepped surface structure, the measuring surface 22 includes an inner stepped surface 221 close to the compressor casing 100 and an outer stepped surface 222 far from the compressor casing 100, an axial distance from the inner stepped surface 221 to the coloring surface 21 is greater than or equal to a minimum allowable axial distance, an axial distance from the outer stepped surface 222 to the coloring surface 21 is less than or equal to a maximum allowable axial distance, the measuring end of the plug gauge 2 is plugged at the inner flow path surface of the compressor casing 100 by axially sliding the mounting end of the plug gauge 2 along the compressor casing 100, and whether the axial distance from the flow path surface to the end surface of the compressor casing 100 is qualified is determined according to the relative position relationship among the second reference surface 12, the inner stepped surface 221 and the outer stepped surface 222. If the outer step surface 222 is not lower than the second reference surface 12, it indicates that the axial distance between the flow passage surface and the input end surface of the compressor casing 100 is less than or equal to the maximum allowable axial distance, and if the inner step surface 221 is not higher than the second reference surface 12, it indicates that the axial distance between the flow passage surface and the input end surface of the compressor casing 100 is greater than or equal to the minimum allowable axial distance. The second reference surface 12, the outer step surface 222, and the inner step surface 221 are configured so as to directly observe the relative position relationship among the second reference surface 12, the inner step surface 221, and the outer step surface 222, and quickly determine whether the axial distance from the flow path surface to the end surface of the compressor casing 100 is acceptable. Optionally, the measuring surface 22 includes a plurality of step surfaces arranged along the axial direction of the compressor casing 100 and parallel to the second reference surface 12, and whether the axial distance from the flow passage surface to the end surface of the compressor casing 100 is qualified is determined according to different tolerance ranges and according to the relative position relationship between different step surfaces and the second reference surface 12.
As shown in fig. 2, the positioning bush 1 is provided with a mounting hole for mounting the plug gauge 2 along the axial direction of the compressor casing 100, and the mounting end of the plug gauge 2 is in clearance fit with the mounting hole, so that the mounting end of the plug gauge 2 axially slides in the mounting hole. In this embodiment, the clearance between the mounting end of the plug gauge 2 and the mounting hole is 0.005 mm. The outer wall surface of the mounting end of the plug gauge 2 is provided with a sliding groove along the axial direction of the compressor casing 100, and the positioning bush 1 is provided with a limiting member for being inserted into the sliding groove so as to slidably guide the plug gauge 2 and limit the sliding range of the mounting end of the plug gauge 2. The radial dimension of the limiting piece is equal to the width of the sliding groove, so that the plug gauge 2 is prevented from rotating along the circumferential direction when the coloring surface 21 colors the runner surface. Optionally, the limiting member is a limiting screw or a limiting pin. All evenly be equipped with the lightening hole along circumference on location bush 1 and the plug gauge 2 to alleviate structure gravity, when saving the cost, easily installation and transport.
The coloring inspection method for the flow passage surface at the inner coating of the compressor casing 100 in the embodiment is used for inspecting whether the size of the flow passage surface at the inner coating of the compressor casing 100 is qualified or not, and the coloring gauge is adopted, and comprises the following steps: cleaning the compressor casing 100 and the coloring gauge; the input end of a compressor casing 100 is upward and vertically placed on an operation table; uniformly coating a layer of coloring agent on a coloring surface 21 of a coloring gauge, extending a plug gauge 2 of the coloring gauge into the compressor casing 100 from the input end of the compressor casing 100 and enabling a first reference surface 11 of a positioning bush 1 to be matched with the end surface of the input end of the compressor casing 100, so that the coloring surface 21 of the coloring gauge colors a flow passage surface in the compressor casing 100; after standing for a period of time, taking out the coloring gauge from the compressor casing 100; whether the size of the runner surface is acceptable is determined based on the difference between the colored surface 21 area of the runner surface and the total area of the colored surface 21. The resting time of the staining gauge is not less than 30 seconds.
And observing whether the flow channel surface is uniformly colored or not, wherein the blank areas are a plurality of scattered areas, the total area of the blank areas is controlled to be less than or equal to 10% of the total area of the colored surface 21, the size of the flow channel surface is qualified, and otherwise, the size of the flow channel surface is unqualified. Through three-coordinate measurement and coloring inspection comparison of the flow passage surface at the coating position of the compressor casing 100, the flow passage dimension is qualified when the coloring area of the flow passage surface is not less than 90% of the coloring surface 21, and the flow passage dimension is unqualified when the coloring area is less than 90%.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A coloring gauge is used for checking whether the size of a flow passage surface at the inner coating of an air compressor casing (100) is qualified or not, the inner diameter size of the input end of the air compressor casing (100) is larger than the inner diameter size of the flow passage surface, and is characterized in that,
the coloring gauge comprises a positioning bush (1) used for positioning and installing at the end face of the input end of the compressor casing (100) and a plug gauge (2) installed on the positioning bush (1) and used for extending from the input end of the compressor casing (100) to the inner flow passage face of the compressor casing (100) to carry out coloring inspection,
the positioning bush (1) is provided with a first reference surface (11) which is matched and attached with the end surface of the input end of the compressor casing (100),
the measuring end of the plug gauge (2) is provided with a coloring surface (21) which is matched with the standard flow passage surface and is used for coating colorant, the mounting end of the plug gauge (2) is arranged on the positioning bush (1), the relative position relationship between the coloring surface (21) and the first reference surface (11) is the same as the relative position relationship between the standard flow passage surface and the end surface of the input end of the compressor casing (100),
the positioning bushing (1) is positioned and installed at the end face of the input end of the compressor casing (100), so that the coloring surface (21) coated with a coloring agent on the plug gauge (2) colors the runner surface at the inner coating of the compressor casing (100), and whether the size of the runner surface is qualified or not is judged according to the difference between the coloring area of the runner surface and the total area of the coloring surface (21).
2. Coloring gauge according to claim 1,
a second reference surface (12) parallel to the first reference surface (11) is arranged on the positioning bush (1), the second reference surface (12) is positioned on the surface, opposite to the first reference surface (11), of the positioning bush (1), the axial distance between the first reference surface (11) and the end surface of the input end of the compressor casing (100) and the standard flow passage surface is a standard axial distance,
the mounting end of the plug gauge (2) is connected with the positioning bush (1) in a sliding way along the axial direction of the compressor casing (100), the end surface of the mounting end of the plug gauge (2) is a measuring surface (22) parallel to the second reference surface (12),
the mounting end of the plug gauge (2) slides along the axial direction of the compressor casing (100) to plug the measuring end of the plug gauge (2) at the position of a runner surface in the compressor casing (100), and whether the axial distance from the runner surface to the end surface of the input end of the compressor casing (100) is a standard axial distance or not is judged according to the relative position relation between the measuring surface (22) and the second reference surface (12),
and the axial distance from the flow channel surface to the end surface of the input end of the compressor casing (100) is not more than the maximum allowable axial distance and not less than the minimum allowable axial distance, so that the axial distance from the flow channel surface to the end surface of the compressor casing (100) is qualified.
3. Coloring gauge according to claim 2,
the measuring surface (22) is of a step surface structure, the measuring surface (22) comprises an inner step surface (221) close to the compressor casing (100) and an outer step surface (222) far away from the compressor casing (100), the axial distance from the inner step surface (221) to the coloring surface (21) is larger than or equal to the minimum allowable axial distance, the axial distance from the outer step surface (222) to the coloring surface (21) is smaller than or equal to the maximum allowable axial distance,
the mounting end of the plug gauge (2) slides along the axial direction of the compressor casing (100) so that the measuring end of the plug gauge (2) is plugged at the position of the inner flow channel surface of the compressor casing (100), and whether the axial distance from the flow channel surface to the end surface of the compressor casing (100) is qualified or not is judged according to the relative position relation of the second reference surface (12), the inner step surface (221) and the outer step surface (222).
4. Coloring gauge according to claim 3,
the second reference surface (12), the outer step surface (222) and the inner step surface (221) are arranged in a matching manner.
5. Coloring gauge according to claim 2,
the positioning bush (1) is provided with a mounting hole for mounting the plug gauge (2) along the axial direction of the compressor casing (100), and the mounting end of the plug gauge (2) is in clearance fit with the mounting hole so that the mounting end of the plug gauge (2) axially slides in the mounting hole.
6. Coloring gauge according to claim 5,
the outer wall surface of the mounting end of the plug gauge (2) is provided with a sliding groove along the axial direction, and the positioning bushing (1) is provided with a limiting piece inserted into the sliding groove so as to guide the plug gauge (2) in a sliding mode and limit the sliding range of the mounting end of the plug gauge (2).
7. Coloring gauge according to claim 1,
lightening holes are uniformly formed in the positioning bushing (1) and the plug gauge (2) along the circumferential direction, so that the gravity of the structure is lightened.
8. A method for inspecting the coloration of the surface of a flow channel in the internal coating of a compressor casing (100) for the dimensional acceptability of the surface of the flow channel in the internal coating of the compressor casing, characterized in that the use of a coloration gauge as claimed in any one of claims 1 to 7 comprises the following steps:
cleaning an air compressor casing (100) and a coloring gauge;
the input end of a compressor casing (100) is upward and vertically placed on an operation table;
uniformly coating a layer of coloring agent on a coloring surface (21) of a coloring gauge, extending a plug gauge (2) of the coloring gauge into an air compressor casing (100) from the input end of the air compressor casing (100), matching and attaching a first reference surface (11) of a positioning bush (1) with the end surface of the input end of the air compressor casing (100), and axially moving the plug gauge (2) so as to color a flow passage surface in the air compressor casing (100) by the coloring surface (21) of the coloring gauge;
after standing for a period of time, taking out the coloring gauge from the compressor casing (100);
whether the dimension of the runner surface is acceptable is determined by the difference between the area of the colored surface (21) of the runner surface and the total area of the colored surface (21).
9. The method of claim 8, wherein the surface of the flow channel at the inner coating of the compressor casing is inspected for coloring,
the resting time of the staining gauge is not less than 30 seconds.
10. The method of claim 8, wherein the surface of the flow channel at the inner coating of the compressor casing is inspected for coloring,
and observing whether the flow channel surface is uniformly colored or not, wherein the blank areas are a plurality of scattered areas, and the total area of the blank areas is controlled to be less than or equal to 10% of the total area of the colored surface (21), so that the size of the flow channel surface is qualified, otherwise, the size of the flow channel surface is unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115800.3A CN111238333A (en) | 2020-02-25 | 2020-02-25 | Coloring gauge and coloring inspection method for flow channel surface at inner coating of casing of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115800.3A CN111238333A (en) | 2020-02-25 | 2020-02-25 | Coloring gauge and coloring inspection method for flow channel surface at inner coating of casing of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111238333A true CN111238333A (en) | 2020-06-05 |
Family
ID=70875022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010115800.3A Pending CN111238333A (en) | 2020-02-25 | 2020-02-25 | Coloring gauge and coloring inspection method for flow channel surface at inner coating of casing of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111238333A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191172Y (en) * | 2008-04-14 | 2009-02-04 | 哈尔滨汽轮机厂有限责任公司 | Indirect measurement tool for steam turbine reel taper pin assemble |
| CN101858717A (en) * | 2009-04-08 | 2010-10-13 | 中国航空工业标准件制造有限责任公司 | Detection method for inner cone angle and tool for detection |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
| CN203908461U (en) * | 2014-06-12 | 2014-10-29 | 安徽江淮专用汽车有限公司 | Test tool used for detecting joint of oil outlet of oil pump |
| CN105300214A (en) * | 2015-10-29 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Measuring tool for measuring internal slot of crankcase and using method thereof |
| CN205300470U (en) * | 2015-11-25 | 2016-06-08 | 中航贵州飞机有限责任公司 | Measure special gauge of sealed rubber ring nest degree of depth |
| CN206601093U (en) * | 2016-12-12 | 2017-10-31 | 重庆美心翼申机械股份有限公司 | A kind of bent axle coaxiality of inner hole Quick detection tool |
| CN107702857A (en) * | 2017-11-23 | 2018-02-16 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of check device and its detection method of the smart conical surface |
-
2020
- 2020-02-25 CN CN202010115800.3A patent/CN111238333A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191172Y (en) * | 2008-04-14 | 2009-02-04 | 哈尔滨汽轮机厂有限责任公司 | Indirect measurement tool for steam turbine reel taper pin assemble |
| CN101858717A (en) * | 2009-04-08 | 2010-10-13 | 中国航空工业标准件制造有限责任公司 | Detection method for inner cone angle and tool for detection |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
| CN203908461U (en) * | 2014-06-12 | 2014-10-29 | 安徽江淮专用汽车有限公司 | Test tool used for detecting joint of oil outlet of oil pump |
| CN105300214A (en) * | 2015-10-29 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Measuring tool for measuring internal slot of crankcase and using method thereof |
| CN205300470U (en) * | 2015-11-25 | 2016-06-08 | 中航贵州飞机有限责任公司 | Measure special gauge of sealed rubber ring nest degree of depth |
| CN206601093U (en) * | 2016-12-12 | 2017-10-31 | 重庆美心翼申机械股份有限公司 | A kind of bent axle coaxiality of inner hole Quick detection tool |
| CN107702857A (en) * | 2017-11-23 | 2018-02-16 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of check device and its detection method of the smart conical surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8087447B2 (en) | Method for checking wall thickness of hollow core airfoil | |
| US10871402B2 (en) | Device for measuring the characteristics of an air flow | |
| US7017431B2 (en) | Methods for inspecting components | |
| KR20100048920A (en) | Method and system for inspecting blade tip clearance | |
| CN107366576B (en) | A kind of processing, detection device and the method for engine oil supporting plate casing | |
| US8764000B2 (en) | Tool alignment fixture | |
| US10619998B2 (en) | Method of measuring clearance between rotating and static components | |
| CN111238333A (en) | Coloring gauge and coloring inspection method for flow channel surface at inner coating of casing of air compressor | |
| US10232474B2 (en) | Gas turbine engine components and method of assembly | |
| US11340184B2 (en) | Engine component performance inspection sleeve and method of inspecting engine component | |
| US20200317370A1 (en) | Aircraft component repair system and process | |
| US11149640B2 (en) | Circular seal outer diameter seal effectiveness testing tool | |
| US5629479A (en) | Volume displacement monitoring device | |
| EP3722739B1 (en) | Apparatus and method for inspecting an airfoil profile | |
| US10197474B2 (en) | System and methods of inspecting a component | |
| US10247703B2 (en) | Inspection device utilizing eddy currents | |
| US20030079326A1 (en) | Circular recuperator inspection fixture | |
| US7246419B2 (en) | Impeller clearance tool | |
| CN215949591U (en) | Aeroengine blade and aeroengine comprising same | |
| EP4206637A1 (en) | Vacuum testing a seal within a gas turbine engine structure | |
| US10690491B1 (en) | Standoff fixture for laser inspection | |
| RU2555934C2 (en) | Jet turbine engine overhaul method (versions) and jet turbine engine repaired according to this method (versions), overhaul of batch of resupplied group of jet turbine engines and jet turbine engine repaired by this method | |
| CN105783666B (en) | Heat pump core packet support slipper contacts checking tool and contact inspection method | |
| CN116637741A (en) | Turbine blade spraying shielding tool and turbine blade test path manufacturing method | |
| CN116412896A (en) | Cooling device and optical fiber type blade tip timing sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |