CN113819830A - Device for adjusting assembly concentricity of helicopter engine and measuring method thereof - Google Patents
Device for adjusting assembly concentricity of helicopter engine and measuring method thereof Download PDFInfo
- Publication number
- CN113819830A CN113819830A CN202110794454.0A CN202110794454A CN113819830A CN 113819830 A CN113819830 A CN 113819830A CN 202110794454 A CN202110794454 A CN 202110794454A CN 113819830 A CN113819830 A CN 113819830A
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- Prior art keywords
- measuring
- shaft
- measuring shaft
- sleeve
- engine
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention relates to a device and a method for adjusting the assembly concentricity of a helicopter engine, which comprises a measuring shaft sleeve (1), a measuring shaft (2), a measuring disc (3) and a locking device (4); the rear end of the measuring shaft sleeve is coaxially connected with an engine output shaft through a flange, and the measuring shaft sleeve is sleeved with the measuring shaft and is in sliding fit with the measuring shaft; the clearance between the sleeve of the measuring shaft and the measuring shaft is not more than 0.03 mm; the cylindricity of the inner circle of the measuring shaft sleeve and the cylindricity of the outer circle of the measuring shaft are not more than 0.02 mm; the locking device is used for locking and fixing the sleeve of the measuring shaft and the measuring shaft; the front end of the measuring shaft is conical, and the measuring shaft is a hollow body; the back surface of the measuring disc (3) is coaxially connected with the input shaft of the transmission, and the front surface of the measuring disc (3) is abutted against the front end of the measuring shaft; when the output shaft of the engine rotates, the sleeve of the measuring shaft and the measuring shaft can be driven to rotate integrally, a circular track can be left at the front end of the measuring shaft on the front face of the measuring disc (3), and the circular track is used for judging the coaxiality of the output shaft of the engine and the input shaft of the transmission. The invention has simple structure and convenient operation, can accurately adjust and check whether the concentricity of the output shaft of the engine and the main reducing input shaft meets the assembly requirement, ensures the assembly precision of the engine and has very obvious use effect.
Description
Technical Field
The invention relates to the technical field of measurement and testing, in particular to a device for adjusting the assembly concentricity of a helicopter engine and a measurement method thereof.
Background
When the helicopter engine is installed on a helicopter engine, the requirement on the coaxiality between the engine output shaft and the main reducing input shaft is very high, the installation precision on the engine influences the flight safety, a special device is required for adjustment, and the installation on the engine is ensured to meet the assembly requirement.
Disclosure of Invention
The purpose of the invention is as follows: the device capable of simply and conveniently realizing the function of ensuring the coaxiality precision requirement of the engine between the output shaft and the main reducing input shaft on the helicopter engine mounting platform is developed.
The technical scheme of the invention is as follows:
the concentricity adjusting device for assembling the helicopter engine comprises a measuring shaft sleeve (1), a measuring shaft (2), a measuring disc (3) and a locking device (4);
the rear end of the measuring shaft sleeve is coaxially connected with an engine output shaft through a flange, and the measuring shaft sleeve is sleeved with the measuring shaft and is in sliding fit with the measuring shaft; the clearance between the sleeve of the measuring shaft and the measuring shaft is not more than 0.03 mm; the cylindricity of the inner circle of the measuring shaft sleeve and the cylindricity of the outer circle of the measuring shaft are not more than 0.02 mm;
the locking device is used for locking and fixing the sleeve of the measuring shaft and the measuring shaft;
the front end of the measuring shaft is conical, and the measuring shaft is a hollow body; the back surface of the measuring disc (3) is coaxially connected with the input shaft of the transmission, and the front surface of the measuring disc (3) is abutted against the front end of the measuring shaft; when the output shaft of the engine rotates, the sleeve of the measuring shaft and the measuring shaft can be driven to rotate integrally, a circular track can be left at the front end of the measuring shaft on the front face of the measuring disc (3), and the circular track is used for judging the coaxiality of the output shaft of the engine and the input shaft of the transmission.
Further, the central axis of the measuring shaft sleeve or the central axis of the measuring shaft is used as a reference;
furthermore, the wall thickness of the measuring shaft is 1-2 mm. Preferably 1.5 mm. The influence of the deviation caused by the self weight on the whole measuring device is reduced;
furthermore, the material of the measuring shaft is 30 CrMnSiA.
Furthermore, the locking device is a locking screw which is arranged on the wall of the measuring shaft sleeve.
Furthermore, the locking device is a clamp and clamps and fixes the sleeve of the measuring shaft and the measuring shaft.
The measuring method based on the helicopter engine assembly concentricity adjusting device comprises the following steps:
fixedly connecting a measuring shaft sleeve with a flange of an engine output shaft, inserting the measuring shaft into the measuring shaft sleeve, fixedly connecting a measuring disc with a flange of a speed reducer input shaft, sliding the measuring shaft along the measuring sleeve to enable a front end conical tip of the measuring shaft to abut against the front face of the measuring disc, and rotating the engine input shaft to enable the front end conical tip of the measuring shaft to leave a circular track on the front face of the measuring disc.
The invention has the beneficial effects that: the invention has simple structure and convenient operation, can accurately adjust and check whether the concentricity of the output shaft of the engine and the main reducing input shaft meets the assembly requirement, ensures the assembly precision of the engine and has very obvious use effect.
Drawings
FIG. 1 is an assembly schematic of the present invention;
FIG. 2 is a schematic front view of a measuring disk according to the present invention;
wherein: 1-measuring shaft sleeve, 2-measuring shaft, 3-measuring disk, 4-locking device, 5-circular track,
Detailed Description
The device for adjusting the assembly concentricity of the helicopter engine comprises a measuring shaft sleeve 1, a measuring shaft 2, a measuring disc 3 and a locking device 4;
the rear end of the measuring shaft sleeve is coaxially connected with an engine output shaft through a flange, and the measuring shaft sleeve is sleeved with the measuring shaft and is in sliding fit with the measuring shaft; the clearance between the sleeve of the measuring shaft and the measuring shaft is 0.02 mm; the cylindricity of the inner circle of the measuring shaft sleeve and the outer circle of the measuring shaft is 0.01 mm;
the locking device is used for locking and fixing the sleeve of the measuring shaft and the measuring shaft;
the front end of the measuring shaft is conical, and the measuring shaft is a hollow body; the back surface of the measuring disc 3 is coaxially connected with the input shaft of the transmission, and the front surface of the measuring disc 3 is abutted against the front end of the measuring shaft; when the output shaft of the engine rotates, the sleeve of the measuring shaft and the measuring shaft can be driven to rotate integrally, a circular track can be left at the front end of the measuring shaft on the front face of the measuring disc 3, and the circular track is used for judging the coaxiality of the output shaft of the engine and the input shaft of the transmission.
Measuring the central shaft of the shaft sleeve as a reference;
the measuring shaft is a thin-walled part with a wall thickness of 1.5 mm. The influence of the deviation caused by the self weight on the whole measuring device is reduced;
the material of the measuring shaft is 30 CrMnSiA.
The locking device is a locking screw which is arranged on the wall of the measuring shaft sleeve.
The measuring method based on the helicopter engine assembly concentricity adjusting device comprises the following steps:
fixedly connecting a measuring shaft sleeve with a flange of an engine output shaft, inserting the measuring shaft into the measuring shaft sleeve, fixedly connecting a measuring disc with a flange of a speed reducer input shaft, sliding the measuring shaft along the measuring sleeve to enable a front end conical tip of the measuring shaft to abut against the front face of the measuring disc, and rotating the engine input shaft to enable the front end conical tip of the measuring shaft to leave a circular track 5 on the front face of the measuring disc.
Claims (8)
1. Helicopter engine assembly concentricity adjusting device, its characterized in that: comprises a measuring shaft sleeve (1), a measuring shaft (2), a measuring disc (3) and a locking device (4);
the rear end of the measuring shaft sleeve is coaxially connected with an engine output shaft through a flange, and the measuring shaft sleeve is sleeved with the measuring shaft and is in sliding fit with the measuring shaft; the clearance between the sleeve of the measuring shaft and the measuring shaft is not more than 0.03 mm; the cylindricity of the inner circle of the measuring shaft sleeve and the cylindricity of the outer circle of the measuring shaft are not more than 0.02 mm;
the locking device is used for locking and fixing the sleeve of the measuring shaft and the measuring shaft;
the front end of the measuring shaft is conical, and the measuring shaft is a hollow body; the back surface of the measuring disc (3) is coaxially connected with the input shaft of the transmission, and the front surface of the measuring disc (3) is abutted against the front end of the measuring shaft; when the output shaft of the engine rotates, the sleeve of the measuring shaft and the measuring shaft can be driven to rotate integrally, a circular track can be left at the front end of the measuring shaft on the front face of the measuring disc (3), and the circular track is used for judging the coaxiality of the output shaft of the engine and the input shaft of the transmission.
2. A helicopter engine assembly concentricity adjustment apparatus as claimed in claim 1, wherein: the central axis of the measuring shaft sleeve or the central axis of the measuring shaft serves as a reference.
3. A helicopter engine assembly concentricity adjustment apparatus as claimed in claim 1, wherein: the wall thickness of the measuring shaft is 1-2 mm.
4. A helicopter engine assembly concentricity adjustment apparatus according to claim 3, wherein: the wall thickness of the measuring shaft was 1.5 mm.
5. A helicopter engine assembly concentricity adjustment apparatus as claimed in claim 1, wherein: the material of the measuring shaft is 30 CrMnSiA.
6. A helicopter engine assembly concentricity adjustment apparatus as claimed in claim 1, wherein: the locking device is a locking screw which is arranged on the wall of the measuring shaft sleeve.
7. A helicopter engine assembly concentricity adjustment apparatus as claimed in claim 1, wherein: the locking device is a clamp and clamps and fixes the measuring shaft sleeve and the measuring shaft.
8. Method for measuring the concentricity adjustment device of a helicopter engine assembly according to any of claims 1 to 7, comprising the steps of:
fixedly connecting a measuring shaft sleeve with a flange of an engine output shaft, inserting the measuring shaft into the measuring shaft sleeve, fixedly connecting a measuring disc with a flange of a speed reducer input shaft, sliding the measuring shaft along the measuring sleeve to enable a front end conical tip of the measuring shaft to abut against the front face of the measuring disc, and rotating the engine input shaft to enable the front end conical tip of the measuring shaft to leave a circular track on the front face of the measuring disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794454.0A CN113819830B (en) | 2021-07-14 | 2021-07-14 | Concentricity adjusting device for helicopter engine assembly and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794454.0A CN113819830B (en) | 2021-07-14 | 2021-07-14 | Concentricity adjusting device for helicopter engine assembly and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113819830A true CN113819830A (en) | 2021-12-21 |
| CN113819830B CN113819830B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110794454.0A Active CN113819830B (en) | 2021-07-14 | 2021-07-14 | Concentricity adjusting device for helicopter engine assembly and measuring method thereof |
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| CN (1) | CN113819830B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182865A (en) * | 1992-07-14 | 1993-02-02 | Greenslade Joe E | Apparatus for measuring workpiece concentricity |
| JP2006317395A (en) * | 2005-05-16 | 2006-11-24 | Honda Motor Co Ltd | Coaxiality measuring device |
| CN103604398A (en) * | 2013-11-25 | 2014-02-26 | 广西玉柴机器股份有限公司 | Engine flywheel cover coaxiality measuring device |
| CN108759637A (en) * | 2018-06-21 | 2018-11-06 | 湖北三江航天江河化工科技有限公司 | A kind of ground experiment measuring device |
| CN208847140U (en) * | 2018-10-29 | 2019-05-10 | 贵州开磷机电装备工程有限责任公司 | A kind of junction box levelling device |
| CN211552706U (en) * | 2020-03-25 | 2020-09-22 | 山西新超煤业有限公司 | Auxiliary device for adjusting coupler |
-
2021
- 2021-07-14 CN CN202110794454.0A patent/CN113819830B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182865A (en) * | 1992-07-14 | 1993-02-02 | Greenslade Joe E | Apparatus for measuring workpiece concentricity |
| JP2006317395A (en) * | 2005-05-16 | 2006-11-24 | Honda Motor Co Ltd | Coaxiality measuring device |
| CN103604398A (en) * | 2013-11-25 | 2014-02-26 | 广西玉柴机器股份有限公司 | Engine flywheel cover coaxiality measuring device |
| CN108759637A (en) * | 2018-06-21 | 2018-11-06 | 湖北三江航天江河化工科技有限公司 | A kind of ground experiment measuring device |
| CN208847140U (en) * | 2018-10-29 | 2019-05-10 | 贵州开磷机电装备工程有限责任公司 | A kind of junction box levelling device |
| CN211552706U (en) * | 2020-03-25 | 2020-09-22 | 山西新超煤业有限公司 | Auxiliary device for adjusting coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113819830B (en) | 2024-01-23 |
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