CN110953947B - Device and method for measuring tip size of working blade of gas compressor - Google Patents
Device and method for measuring tip size of working blade of gas compressor Download PDFInfo
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- CN110953947B CN110953947B CN201911050745.8A CN201911050745A CN110953947B CN 110953947 B CN110953947 B CN 110953947B CN 201911050745 A CN201911050745 A CN 201911050745A CN 110953947 B CN110953947 B CN 110953947B
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- 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
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Abstract
The invention relates to a device and a method for measuring the size of the blade tip of a working blade of an air compressor, wherein the device comprises a base, a support is connected to the base through a bolt, a sliding meter seat is connected to the support through a screw, slide ways are arranged on two sides of the top of the sliding meter seat, a groove is arranged on the bottom surface of the meter seat and is in sliding fit with the sliding meter seat, a threaded hole is arranged on the side surface of the meter seat, the meter seat can be fastened at any position through the threaded hole, a baffle is fastened at the end part of the slide way of the sliding meter seat through the screw, and a dial indicator is fixed at the front end of the meter seat; the lower part of the support is provided with a unthreaded hole at the rotating center, one end of the rotating shaft is fixed in the unthreaded hole of the support, the other end of the rotating shaft is inserted into a bushing, a bracket is fixed outside the bushing, and the bracket can rotate around the rotating shaft; the upper end of the support is fixed with a ground positioning block, a lateral positioning block, a stop pin and a pressing block through a fixing disc to limit six degrees of freedom of the working blade, and the working blade is completely fixed. The method can accurately measure the size of the conical surface of the blade tip, improves the measurement efficiency and has good economic benefit.
Description
Technical Field
The invention belongs to the technical field of measurement of sizes of blades of a gas compressor, and particularly relates to a device and a method for measuring the size of the tip of a working blade of the gas compressor.
Background
The blade tips of the primary working blades of the engine compressor are combined and processed to be conical surfaces, when the engine is repaired, the size of the blade tip part of a single blade needs to be measured to ensure the performance of the engine, and the tenon part of the blade and the axis position of the engine form a spatial dihedral angle, so that the difficulty of positioning measurement is increased. At present, most of measuring methods applied to the tip of the conical surface are to measure a section line of a certain section of a shaft line of the conical surface and a straight motor or to measure the numerical value of a highest bus, but because the blade body of the blade is large in distortion degree, the section line is short, and the bus is bent, the state of the tip of the blade cannot be accurately reflected. Therefore, a measuring device and a method capable of accurately measuring the page size of the working blade of the compressor are needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a device and a method for measuring the size of the tip of a working blade of an air compressor, which can accurately measure the size of the conical surface of the tip.
A device for measuring the size of the blade tip of a working blade of an air compressor comprises a base, wherein a support is connected to the base through a bolt, a sliding meter seat is connected to the support through a screw, slide ways are arranged on two sides of the top of the sliding meter seat, a groove is formed in the bottom surface of the sliding meter seat and is in sliding fit with the sliding meter seat, a threaded hole is formed in the side surface of the sliding meter seat, the sliding meter seat can be fastened at any position through the threaded hole, a stop piece is fastened at the end part of the slide way of the sliding meter seat through the screw, the sliding meter seat is prevented from falling in the sliding process, and a dial indicator is fixed at the front end of the sliding meter seat; the lower part of the support is provided with a unthreaded hole at the rotating center, one end of the rotating shaft is fixed in the unthreaded hole of the support, the other end of the rotating shaft is inserted into a bushing, a bracket is fixed outside the bushing, and the bracket can rotate around the rotating shaft; the upper end of the support is fixed with a ground positioning block, a lateral positioning block, a stop pin and a pressing block through a fixing disc to limit six degrees of freedom of the working blade, and the working blade is completely fixed.
The dial indicator is characterized in that a unthreaded hole is formed in the front portion of the gauge stand, an opening bushing is installed in the hole, a threaded hole is formed in the front end face of the gauge stand, a knurled screw abuts against the side face of the opening bushing through the threaded hole, and the dial indicator is tightly sleeved through the opening bushing after being installed.
The end part of the rotating shaft is provided with a gasket and a nut which block the rotating shaft to prevent the rotating shaft from falling off, and the bracket is ensured to rotate freely around the rotating shaft, namely, rotate around the rotating center.
The disc is connected with the support through screws, the bottom positioning block is fixed on the upper surface of the disc through bolts, the stop pin is connected with the bottom positioning block through threads, and the lateral positioning block is connected to the bottom positioning block through screws.
The bottom surface positioning block is provided with a groove, and the pressing block slides in the groove.
The side surface of the pressing block is provided with a through hole, the stud is inserted into the through hole and is in threaded connection with a threaded hole on the right side of the bottom positioning block through threads, the stud is prevented from rotating by a set screw, and a knurled nut is arranged at the other end of the stud and drives the pressing block to move to press the working blade.
The compression is provided with a spring inside, the compression is in a compression state when the working blade is compressed, and the compression block can be popped out when the knurled nut is unscrewed to loosen the blade.
The support is fastened with a U-shaped separation blade through a bolt and used for limiting the support and preventing the support from overturning in the rotating process.
The measuring method of the measuring device for the size of the blade tip of the working blade of the compressor comprises the following steps: the method specifically comprises the following steps:
the method comprises the following steps: installing a dial indicator for measurement in the opening bushing, rotating the knurled screw to tightly push the opening bushing, and fixing the dial indicator;
step two: installing the bottom surface of the blade on the bottom surface positioning block, attaching the end surface to the stop pin, attaching the side surface to the lateral positioning block, and screwing the knurled nut to position the blade;
step three: the rotating support realizes the measurement of the blade, and the sliding meter seat drives the dial indicator to realize the measurement of the generatrix of the blade at different positions of the conical surface.
The invention has the beneficial effects that: the measuring device provided by the invention has the advantages that the size of the conical surface of the working blade can be accurately measured, the measuring efficiency is improved, the application is reliable, and the product quality can be controlled. Meanwhile, the cost caused by low efficiency, production consumption and rework can be saved, the economic benefit is good, the universality can be realized, and the applicability is wide.
Drawings
FIG. 1 is a front view of a device for measuring the tip size of a compressor working blade according to the present invention;
FIG. 2 is a side view of a device for measuring the tip size of a compressor working blade according to the present invention;
FIG. 3 is a schematic view of a connection portion between a watch base and a watch sliding base according to the present invention;
FIG. 4 is a schematic view of the internal structure of the compact of the present invention;
FIG. 5 is a top view of a device for measuring the tip size of a compressor rotor blade according to the present invention;
wherein the content of the first and second substances,
the device comprises a base 1, a support 2, a nut 3, a gasket 4, a bushing 5, a rotating shaft 6, a support 7, a disc 8, a stop pin 9, a bottom surface positioning block 10, a stop piece 11, a sliding gauge stand 12, a gauge stand 13, an opening bushing 14, a knurled screw 15, a knurled nut 16, a pressing block 17, a lateral positioning block 18, a screw 19, a spring 20, a stud 21 and a set screw 22.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-5, a device for measuring the size of the tip of a working blade of an air compressor comprises a base 1, wherein the base 1 is connected with a support 2 through a bolt, a sliding meter seat 12 is connected on the support 2 through a screw, two sides of the top of the sliding meter seat are provided with slideways, the bottom surface of a meter seat 13 is provided with a groove which is in sliding fit with the sliding meter seat 12, and the meter seat 13 is ensured to slide on the sliding meter seat 12 along an angle line of a conical bus; the side surface of the meter seat 13 is provided with a threaded hole, the meter seat 13 can be fastened at any position through the threaded hole by using a screw 19, the end part of the slideway of the sliding meter seat 12 is fastened with a baffle plate 11 through a screw, and the meter seat 13 is prevented from falling in the sliding process; the dial indicator is fixed at the front end of a gauge stand 13, the front part of the gauge stand 13 is provided with a unthreaded hole, an opening bushing 14 is installed in the hole, the front end face of the gauge stand 13 is provided with a threaded hole, a knurled screw 15 is propped against the side face of the opening bushing 14 through the threaded hole, and the dial indicator is tightly sleeved through the opening bushing after being installed.
The lower part of the support 2 is provided with a unthreaded hole at the rotating center, one end of the rotating shaft 6 is fixed in the unthreaded hole of the support 2, the other end of the rotating shaft 6 is inserted into the bushing 5, the bracket 7 is fixed outside the bushing 5, the bracket 7 can rotate around the rotating shaft 6, the end part of the rotating shaft 6 is provided with the gasket 4 and the nut 3 to block the rotating shaft 6 to prevent the falling of the rotating shaft 6, and the bracket 7 is ensured to rotate freely around the rotating shaft 6, namely rotate around the rotating center.
The upper end of the support 7 is fixed with a ground positioning block, a lateral positioning block 18, a stop pin 9 and a pressing block 17 through a fixing disc 8 to limit six degrees of freedom of the working blade, the working blade is completely fixed, the disc 8 is connected with the support 2 through screws, the bottom positioning block 10 is fixed on the upper surface of the disc 8 through bolts, the stop pin 9 is connected with the bottom positioning block 10 through threads, the lateral positioning block 18 is connected onto the bottom positioning block 10 through screws, the bottom positioning block 10 is provided with a groove, the pressing block 17 slides in the groove, the side surface of the pressing block 17 is provided with a through hole, a stud 21 is inserted into the through hole and is connected with the thread hole on the right side of the bottom positioning block 10 through threads, and is prevented from rotating by a set screw 22, a knurled nut 16 is installed at the other end of the stud 21 to drive the pressing block 17 to move to press the working blade. The compression is internally provided with a spring 20 which is in a compression state when compressing the working blade and can eject the compression block 17 to loosen the blade when loosening the knurled nut 16.
And the support 2 is fastened with a U-shaped baffle through a bolt and used for limiting the bracket 7 and preventing the bracket from overturning in the rotating process.
The measuring method of the measuring device for the size of the blade tip of the working blade of the compressor comprises the following steps: the method specifically comprises the following steps:
the method comprises the following steps: installing the dial indicator for measurement in the opening bushing 14, rotating the knurled screw 15 to tightly push the opening bushing 14, and fixing the dial indicator;
step two: installing the bottom surface of the blade on a bottom surface positioning block 10, attaching the end surface to a stop pin 9, attaching the side surface to a lateral positioning block 18, and screwing a knurled nut 16 to position the blade;
step three: the rotating bracket 7 realizes the measurement of the blade, and the sliding meter seat 12 drives the dial indicator to realize the measurement of the generatrix of the blade at different positions of the conical surface.
Claims (5)
1. The utility model provides a measuring device of compressor working blade apex size which characterized in that: the sliding gauge seat is connected to the support through a bolt, the slide ways are arranged on two sides of the top of the sliding gauge seat, the bottom surface of the sliding gauge seat is provided with a groove in sliding fit with the sliding gauge seat, the side surface of the sliding gauge seat is provided with a threaded hole, the sliding gauge seat can be fastened at any position through the threaded hole, the end part of the slide way of the sliding gauge seat is fastened with a blocking piece through the bolt, the sliding gauge seat is prevented from falling in the sliding process, and the dial indicator is fixed at the front end of the sliding gauge seat; the lower part of the support is provided with a unthreaded hole at the rotating center, one end of the rotating shaft is fixed in the unthreaded hole of the support, the other end of the rotating shaft is inserted into a bushing, a bracket is fixed outside the bushing, and the bracket can rotate around the rotating shaft; the upper end of the bracket is fixed with a bottom surface positioning block, a lateral positioning block, a stop pin and a pressing block through a fixed disc to limit six degrees of freedom of the working blade, so that the working blade is completely fixed;
the disc is connected with the support through a screw, the bottom positioning block is fixed on the upper surface of the disc through a bolt, the stop pin is connected with the bottom positioning block through a thread, and the lateral positioning block is connected with the bottom positioning block through a screw;
the bottom surface positioning block is provided with a groove, and the pressing block slides in the groove;
the side surface of the pressing block is provided with a through hole, the stud is inserted into the through hole and is in threaded connection with a threaded hole on the right side of the bottom positioning block through threads, the stud is prevented from rotating by a set screw, and a knurled nut is arranged at the other end of the stud and drives the pressing block to move to press the working blade;
the compression block is internally provided with a spring, is in a compression state when compressing the working blade, and can be popped out when loosening the knurled nut to loosen the blade.
2. The device for measuring the tip size of a compressor working blade according to claim 1, wherein: the dial indicator is characterized in that the front part of the gauge stand is provided with a unthreaded hole, an opening bushing is installed in the hole, the front end face of the gauge stand is provided with a threaded hole, a knurled screw is fixed on the side face of the opening bushing through the threaded hole, and the dial indicator is tightly sleeved through the opening bushing after being installed.
3. The device for measuring the tip size of a compressor working blade according to claim 1, wherein: the end part of the rotating shaft is provided with a gasket and a nut which block the rotating shaft to prevent the rotating shaft from falling off, and the bracket is ensured to rotate freely around the rotating shaft, namely, rotate around the rotating center.
4. The device for measuring the tip size of a compressor working blade according to claim 1, wherein: the support is fastened with a U-shaped separation blade through a bolt and used for limiting the support and preventing the support from overturning in the rotating process.
5. The method for measuring the tip size of the working blade of the compressor as recited in any one of claims 1 to 3, wherein: the method specifically comprises the following steps:
the method comprises the following steps: installing a dial indicator for measurement in the opening bushing, rotating the knurled screw to tightly push the opening bushing, and fixing the dial indicator;
step two: installing the bottom surface of the blade on the bottom surface positioning block, attaching the end surface to the stop pin, attaching the side surface to the lateral positioning block, and screwing the knurled nut to position the blade;
step three: the rotating support realizes the measurement of the blade, and the sliding meter seat drives the dial indicator to realize the measurement of the generatrix of the blade at different positions of the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050745.8A CN110953947B (en) | 2019-10-31 | 2019-10-31 | Device and method for measuring tip size of working blade of gas compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050745.8A CN110953947B (en) | 2019-10-31 | 2019-10-31 | Device and method for measuring tip size of working blade of gas compressor |
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| Publication Number | Publication Date |
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| CN110953947A CN110953947A (en) | 2020-04-03 |
| CN110953947B true CN110953947B (en) | 2021-08-24 |
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| CN201911050745.8A Active CN110953947B (en) | 2019-10-31 | 2019-10-31 | Device and method for measuring tip size of working blade of gas compressor |
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| CN116558387B (en) * | 2023-07-05 | 2023-09-12 | 成都航利航空科技有限责任公司 | Rapid detection device and method for welding position of stator assembly blade of air compressor |
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| US4222172A (en) * | 1979-01-12 | 1980-09-16 | General Motors Corporation | Vane area measuring device |
| CN202994077U (en) * | 2012-12-31 | 2013-06-12 | 东风汽车零部件(集团)有限公司 | A multifunctional piston coating thickness measuring device |
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| CN105004241A (en) * | 2015-05-28 | 2015-10-28 | 岳阳大陆激光技术有限公司 | Apparatus for measuring rotor blade |
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| CN205279911U (en) * | 2015-11-19 | 2016-06-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Instrument that blade tenon detected |
| CN106996730A (en) * | 2017-04-05 | 2017-08-01 | 上海航天控制技术研究所 | A kind of combustion gas rudder face installs the measuring system and its measuring method of zero drift |
| CN206772186U (en) * | 2017-05-23 | 2017-12-19 | 常州市三维技术成套设备有限公司 | A kind of lever meter measurement apparatus of turbine blade size |
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2019
- 2019-10-31 CN CN201911050745.8A patent/CN110953947B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4222172A (en) * | 1979-01-12 | 1980-09-16 | General Motors Corporation | Vane area measuring device |
| CN202994077U (en) * | 2012-12-31 | 2013-06-12 | 东风汽车零部件(集团)有限公司 | A multifunctional piston coating thickness measuring device |
| CN104330008A (en) * | 2014-11-24 | 2015-02-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Device and method for measuring dimension of rocker arm combination part |
| CN105004241A (en) * | 2015-05-28 | 2015-10-28 | 岳阳大陆激光技术有限公司 | Apparatus for measuring rotor blade |
| CN105066848A (en) * | 2015-07-15 | 2015-11-18 | 西安航空动力股份有限公司 | Device and method for measuring pressure surface angle of dovetail-type blade tenon |
| CN205279911U (en) * | 2015-11-19 | 2016-06-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Instrument that blade tenon detected |
| CN106996730A (en) * | 2017-04-05 | 2017-08-01 | 上海航天控制技术研究所 | A kind of combustion gas rudder face installs the measuring system and its measuring method of zero drift |
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