CN203130170U - Low-pressure rotor autorotation tool used for borescope inspection of engine of civil aircraft - Google Patents
Low-pressure rotor autorotation tool used for borescope inspection of engine of civil aircraft Download PDFInfo
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- CN203130170U CN203130170U CN 201320066150 CN201320066150U CN203130170U CN 203130170 U CN203130170 U CN 203130170U CN 201320066150 CN201320066150 CN 201320066150 CN 201320066150 U CN201320066150 U CN 201320066150U CN 203130170 U CN203130170 U CN 203130170U
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- low pressure
- pressure rotor
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Abstract
The utility model discloses a low-pressure rotor autorotation tool used for borescope inspection of an engine of a civil aircraft. The low-pressure rotor autorotation tool comprises a rotor connecting disc, a driving motor and a motor anti-rotating rod, wherein one face of the rotor connecting disc is used for being connected with a fan disc of a low-pressure rotor of the engine or a rear air intake cone, the other face of the rotor connecting disc is connected with an output end of the driving motor, the driving motor drives the rotor connecting disc and finally drives the low-pressure rotor of the engine to rotate at a constant speed, one end of the motor anti-rotating rod is connected with the driving motor, the other end of the motor anti-rotating rod is connected with a fan stator casing of the engine, so that reverse torque of the driving motor is offset. The autorotation tool drives the low-pressure rotor to rotate at the constant speed through the electrically-controlled motor, the rotating speed is adjustable, the number of blades is calculated automatically, the autorotation tool is beneficial to inspection of borescope personnel, borescope accuracy is improved, and meanwhile workload of the borescope personnel is relieved.
Description
Technical field
The utility model relates to a kind of rotor rotation instrument, relates in particular to a kind of low pressure rotor rotation instrument that checks of visiting for aircarrier aircraft motor hole.
Background technique
The motor hole visit to check, is exactly by endoscope, and the internal structure of motor is checked, in time finds damage, with the overall performance of assessment motor.As the important means of engine condition monitoring, this inspection is widely used, carries out the frequency height.Yet, the hole of CFM56 Engine Series low pressure rotor is visited, therefore OEM producer does not provide special tool to come rotary rotor, can only visit the manual slow rotation rotor of personnel by the hole, with realize to its altogether seven grades of nearly 1,500 rotor blades step by step, check piecewise.Be example with the CFM56-3 motor, wherein, low-pressure turbine need be examined level Four totally 653 blades, and two-sided inspection is counted 1306; Low pressure compressor need be examined three grades, and the single face inspection is counted 204, and totally 1510, workload is very big.And because the endoscope visual angle, the single face inspection of single blade need be observed four times or abovely just can finish.Process is visited in whole hole, and the operating time is long, and labor intensity is big.Operating process needs two people to cooperate, and a people rotates, and another people observes blade.Rotate personnel's utmost point simultaneously and be hard to keep rotation at the uniform velocity, the fluctuation of speed that causes is unfavorable for that spy personnel in hole observe, and directly influences the hole and visits precision.
The model utility content
The purpose of this utility model is to provide a kind of low pressure rotor rotation instrument that checks of visiting for aircarrier aircraft motor hole, this rotation tool drives low pressure rotor uniform rotation, rotating speed is adjustable, and calculate blade quantity automatically, being conducive to hole spy personnel observes, improve the hole and visit precision, and alleviated hole spy personnel's work load.
The purpose of this utility model is achieved through the following technical solutions: the low pressure rotor rotation instrument that inspection work is used is visited in a kind of aircarrier aircraft motor hole, comprise the rotor land, drive motor and motor are prevented bull stick, one of them face of described rotor land is used for being connected with blades or the back inlet cone of motor low pressure rotor, another face then is connected with the output terminal of described drive motor, by described drive motor rotor land, the uniform rotation of final drive motor low pressure rotor, one end of the anti-bull stick of described motor is connected with drive motor, the other end then is used for being connected with engine blower stator casing, to offset the torque reaction of drive motor.
Described rotor land is provided with the mounting hole of a plurality of diverse locations and size, is used for cooperating blades and the back inlet cone of different type of machines motor.
Rotor land described in the utility model is connected with drive motor by the motor mounting disc, and an end of the anti-bull stick of described motor is fixed in the described motor mounting disc.
As a mode of execution of the present utility model, the junction surface of described rotor land is provided with the connection minor axis, this connects minor axis and is connected with the motor mounting disc by the axial restraint bearing, and motor mounting disc and rotor land can rotate in a circumferential direction separately, and axial restraint is motionless.
The utility model also comprises process control machine, enrolled the low pressure rotor progression of the various types of motor in the program of described process control machine, and the rotor blade quantity of correspondences at different levels, and set engine model, rotor progression, drive motor sense of rotation and the rotating speed that current hole is visited, described process control machine links to each other with drive motor, control drive motor startup and stop, and control drive motor sense of rotation and rotating speed, and revolve at drive motor and to turn around, the process control machine notice hole of sounding is visited personnel's low pressure rotor and has been revolved and turn around in the time of the automatic stall of drive motor.
The anti-bull stick of described motor is the stainless steel strip with certain flexibility, and its shaft is provided with the mounting hole of a plurality of different distance, to adapt to axial and radial distances different between different type of machines fan stator casing and blades, the back inlet cone.
Described rotor land is used for the blades of motor low pressure rotor or that face of back inlet cone connection is provided with boss, described boss is suitable with the groove of back inlet cone, with the connection of the back inlet cone that adapts to model motor such as CFM56-3, and avoid the groove of back inlet cone to sustain damage.
Described rotor land, motor mounting disc all adopt duralumin to make, and be in light weight, and can prevent from engine mounting face is caused damage.
Compared with prior art, the utlity model has following advantage:
(1) the utility model replaces artificial the rotation with the motor driving mode, and whole hole is visited process and is reduced to a people by two people, can save half man-hour.With respect to artificial rotation, drive motor rotates more at the uniform velocity, is more conducive to hole spy personnel and observes, and can improve the hole and visit precision.
(2) the utility model process control machine can be regulated drive motor rotating speed, direction, counts automatically, and stall automatically can improve the hole and visit efficient, reduces labor intensity.
(3) rotor land of the present utility model is provided with the mounting hole of a plurality of diverse locations and size, is easy to approach with blades or the back inlet cone of motor, and is easy for installation, and do not need to carry out the test run inspection and leak hunting after the maintenance end.
Drive the motor low pressure rotor, optional link position has a lot, but for different maintenance levels or at the motor of the wing, blades or back inlet cone are optimal selections, blades or back inlet cone all are positioned at the anterior intake duct of motor, thereby the utility model provides the rotation instrument to approach with it easily.And only need pull down seldom motor piece at blades or back inlet cone, and just can be come out in these two positions, as at the wing or the motor of maintenance among a small circle, need pull down air inlet inner cone (8 screws) to get final product, workload is fewer.
For at wing motor, if some motor piece is removed, after being reinstalled, need carry out the test run inspection to motor.With the dismounting that guarantees these parts engine performance or usability are not impacted, such as leakage of oil, gas leakage.And the blades of pulling down for this instrument is installed or the back inlet cone motor piece, load onto motor again after, according to handbook not needs carry out the test run inspection.
(3) the utility model is applicable to three kinds of type CFM56-3, CFM56-5B, the CFM56-7B of the motor CFM56 of the civil aviaton Engine Series of recoverable amount maximum, and the motor hole that can be widely used in keeping in repair in the course line in the wing and factory is visited and checked.
(4) the utility model expansivity is strong, only needs described rotor land is done repacking slightly, processes the coupling mounting hole, namely can be used for other model motor.
Description of drawings
Fig. 1 is structure connection diagram of the present utility model;
Fig. 2 is the structure connection diagram of rotor land of the present utility model and motor mounting disc and drive motor;
Among the figure: 1. rotor land; 11. boss; 2. motor mounting disc; 3. motor is prevented bull stick; 4. drive motor; 41. motor guide line; 5. process control machine; 51. display screen; 6. motor low pressure rotor; The static casing of 7 engine blowers.
Embodiment
Below in conjunction with specific embodiment the utility model is further set forth.
The low pressure rotor rotation instrument that a kind of aircarrier aircraft motor hole spy inspection work shown in Fig. 1 and 2 is used is an embodiment of the present utility model, is made of rotor land 1, motor mounting disc 2, the anti-bull stick 3 of motor, drive motor 4 and process control machine 5.As shown in Figure 2, one of them face of rotor land 1 is used for being connected with inlet cone is adaptive the blades of motor low pressure rotor or back, and another face then is connected with the output terminal of drive motor 4.That face that is used for being connected with blades or the back inlet cone of motor low pressure rotor of rotor land is provided with boss 11, boss 11 is suitable with the groove of back inlet cone, with the connection of the back inlet cone that adapts to the CFM56-3 motor, and avoid the groove of back inlet cone to sustain damage.That face that is connected with drive motor 4 is provided with the connection minor axis, and this connects minor axis and is connected with motor mounting disc 2 by the axial restraint bearing, and motor mounting disc 2 can rotate in a circumferential direction separately with rotor land 1, and axial restraint is motionless.In real work, rotor land 1 and motor mounting disc 2 have been assembled and have been finished and use as an assembly.Concrete Placement depends on engine condition: only need pull down preceding inlet cone at wing motor, expose the back inlet cone and can load onto rotor land 1; Service engine decides according to maintenance level rotor land 1 is mounted to blades or back inlet cone in the factory.Be processed with the mounting hole 11 of six groups of diverse locations, size on the rotor land, in order to blades and the back inlet cone that cooperates CFM56 three kinds of types of series (CFM56-3, CFM56-5B, CFM56-7B).
In motor mounting disc 2, drive motor 4 output shafts are connected with rotor land 1 minor axis drive motor 4 by bolt, are used for driving rotor land 1, finally drive 6 uniform rotation of motor low pressure rotor.One end of the anti-bull stick 3 of motor is fixedlyed connected with motor mounting disc 2, and the other end then is used for being connected with engine blower stator casing 7, to offset the torque reaction of drive motor 4 bodies.The anti-bull stick 3 of motor has the stainless steel strip of the thickness 3mm of certain flexibility, its shaft is provided with the mounting hole of a plurality of different distance, to adapt to axial and radial distances different between three kinds of type fan stator casings 7 of coupling CFM56 series and blades, the back inlet cone.
The rotor land 1 of present embodiment and motor mounting disc 2 all adopt duralumin to make, and be in light weight, and can prevent from engine mounting face is caused damage.
The utility model can be summarized with other the concrete form without prejudice to spirit of the present utility model or major character.Above-mentioned embodiment of the present utility model all can only be thought explanation of the present utility model rather than restriction, therefore every foundation essence technology of the present utility model all belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment does.
Claims (8)
1. one kind is used for the low pressure rotor rotation instrument that inspection is visited in aircarrier aircraft motor hole, it is characterized in that, comprise that rotor land, drive motor and motor prevent bull stick, one of them face of described rotor land is used for being connected with blades or the back inlet cone of motor low pressure rotor, another face then is connected with the output terminal of described drive motor, one end of the anti-bull stick of described motor is connected with drive motor, the other end then is used for being connected with engine blower stator casing, to offset the torque reaction of drive motor.
2. the low pressure rotor rotation instrument that visit to check for aircarrier aircraft motor hole according to claim 1, it is characterized in that, described rotor land is provided with the mounting hole of a plurality of diverse locations and size, is used for the installation of blades and the back inlet cone of cooperation different type of machines motor.
3. the low pressure rotor rotation instrument that visit to check for aircarrier aircraft motor hole according to claim 1, it is characterized in that, described low pressure rotor rotation instrument also comprises the motor mounting disc, described rotor land is connected with drive motor by the motor mounting disc, and an end of the anti-bull stick of described motor is fixed in the described motor mounting disc.
4. the low pressure rotor rotation instrument that visit to check for aircarrier aircraft motor hole according to claim 3, it is characterized in that, the junction surface of described rotor land is provided with the connection minor axis, this connects minor axis and is connected with the motor mounting disc by the axial restraint bearing, motor mounting disc and rotor land rotate in a circumferential direction separately, and axial restraint is motionless.
5. the low pressure rotor rotation instrument that visit to check for aircarrier aircraft motor hole according to claim 1, it is characterized in that, described low pressure rotor rotation instrument also comprises process control machine, and described process control machine links to each other with drive motor, is used for the working state of control drive motor (4).
6. according to claim 1 or 2 or 3 or the 4 or 5 described low pressure rotor rotation instruments that check of visiting for aircarrier aircraft motor hole, it is characterized in that, the anti-bull stick of described motor is the stainless steel strip with certain flexibility, and its shaft is provided with the mounting hole of a plurality of different distance.
7. the low pressure rotor rotation instrument that visit to check for aircarrier aircraft motor hole according to claim 1, it is characterized in that, that face that described rotor land is used for being connected with blades or the back inlet cone of motor low pressure rotor is provided with boss, and described boss is suitable with the groove of back inlet cone.
8. the low pressure rotor rotation instrument for the spy inspection of aircarrier aircraft motor hole according to claim 1 is characterized in that described rotor land and motor mounting disc all adopt duralumin to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066150 CN203130170U (en) | 2013-02-05 | 2013-02-05 | Low-pressure rotor autorotation tool used for borescope inspection of engine of civil aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066150 CN203130170U (en) | 2013-02-05 | 2013-02-05 | Low-pressure rotor autorotation tool used for borescope inspection of engine of civil aircraft |
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| Publication Number | Publication Date |
|---|---|
| CN203130170U true CN203130170U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066150 Expired - Lifetime CN203130170U (en) | 2013-02-05 | 2013-02-05 | Low-pressure rotor autorotation tool used for borescope inspection of engine of civil aircraft |
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| CN (1) | CN203130170U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725199A (en) * | 2017-12-04 | 2018-02-23 | 成都航利电气有限公司 | A kind of aero-engine cold start high drive instrument |
| CN108332972A (en) * | 2018-05-08 | 2018-07-27 | 厦门新科宇航科技有限公司 | A kind of slewing for visiting detection for civilian engine hole |
| CN110541734A (en) * | 2019-08-26 | 2019-12-06 | 国网天津市电力公司电力科学研究院 | Accurate rotation control device for rotating shaft of steam turbine and use method |
| CN112357113A (en) * | 2020-09-30 | 2021-02-12 | 成都飞机工业（集团）有限责任公司 | Electric device for inspecting blades of aircraft engine and counting method thereof |
| CN116085110A (en) * | 2023-01-28 | 2023-05-09 | 中国民用航空飞行学院 | Intelligent hole detection driving system, method and storage medium based on Bluetooth control |
-
2013
- 2013-02-05 CN CN 201320066150 patent/CN203130170U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725199A (en) * | 2017-12-04 | 2018-02-23 | 成都航利电气有限公司 | A kind of aero-engine cold start high drive instrument |
| CN108332972A (en) * | 2018-05-08 | 2018-07-27 | 厦门新科宇航科技有限公司 | A kind of slewing for visiting detection for civilian engine hole |
| CN108332972B (en) * | 2018-05-08 | 2024-01-02 | 厦门新科宇航科技有限公司 | Rotary equipment for civil engine hole detection |
| CN110541734A (en) * | 2019-08-26 | 2019-12-06 | 国网天津市电力公司电力科学研究院 | Accurate rotation control device for rotating shaft of steam turbine and use method |
| CN112357113A (en) * | 2020-09-30 | 2021-02-12 | 成都飞机工业（集团）有限责任公司 | Electric device for inspecting blades of aircraft engine and counting method thereof |
| CN116085110A (en) * | 2023-01-28 | 2023-05-09 | 中国民用航空飞行学院 | Intelligent hole detection driving system, method and storage medium based on Bluetooth control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |