CN214251512U - Circular arc end tooth connection structure combination rotor test bench - Google Patents
Circular arc end tooth connection structure combination rotor test bench Download PDFInfo
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- CN214251512U CN214251512U CN202120473589.2U CN202120473589U CN214251512U CN 214251512 U CN214251512 U CN 214251512U CN 202120473589 U CN202120473589 U CN 202120473589U CN 214251512 U CN214251512 U CN 214251512U
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- rotor system
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- rotor
- end tooth
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Abstract
The utility model discloses a circular arc end tooth connection structure combination rotor test bench, including test bench basis, motor speed regulator, data collection station, computer, install two bearing frames on the test bench basis in proper order, two all install antifriction bearing in the bearing frame, two install rotor system between the antifriction bearing, install the other driving motor of left side bearing frame in arranging in on the test bench basis, the left end portion of pivot links to each other in driving motor's the output passes through flexible coupling and rotor system, the one end that the pivot is close to left side antifriction bearing in the rotor system is provided with eddy current displacement sensor. The utility model discloses make the input cost greatly reduced of experiment, can effectively reduce the risk coefficient of experiment, the researcher of finally being convenient for is high-efficient, explores aeroengine's dynamic characteristic accurately, makes reasonable the studying and judging and improve in good time to the technique.
Description
Technical Field
The utility model relates to a rotor system dynamics characteristic research technical field especially relates to a circular arc end tooth connection structure combination rotor test bench.
Background
The structure of the aero-engine is extremely complex, the requirement on manufacturing and processing precision is high, the aero-engine is an important embodiment of national science and technology and industrial development degree, and related technologies of the aero-engine have extremely high economic, political, civil and military values. The connection structure of an aircraft engine rotor generally comprises a cylindrical surface centering bolt connection structure, a spline connection structure and an arc end tooth connection structure. Among the three connecting structures, the arc end tooth connecting structure is centered and torque-transmitting through the arc end tooth, and is often fastened by a pull rod or a nut, so that the connecting structure not only has the advantages of other two connecting structures, but also has the characteristics of compact structure, automatic centering, high positioning precision, strong bearing capacity and the like.
The arc end tooth connecting structure is an important connecting structure of the aero-engine, and has great engineering value for researching the influence of the arc end tooth connecting structure on the dynamic characteristics of a rotor system. However, the structure of the aircraft engine is very complex, the design of a dynamic similarity test is always a big problem, and the problems of high cost, high risk and the like are caused when the aircraft engine prototype rotor is directly used for test research.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: at present, the problems of high cost, high risk and the like exist in the test research of directly using an aero-engine prototype rotor, and a combined rotor test bed with an arc end tooth connecting structure is further provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an arc end tooth connection structure combination rotor test bench, includes test bench basis, motor speed regulator, data collection station, computer, install two bearing frames on the test bench basis in proper order, two all install antifriction bearing in the bearing frame, two install rotor system between the antifriction bearing, install the other driving motor of left side bearing frame in arranging in on the test bench basis, driving motor's output passes through flexible coupling and rotor system in the left end portion of pivot and links to each other, the one end that the pivot is close to left side antifriction bearing in the rotor system is provided with eddy current displacement sensor, the one end that the pivot is close to right side antifriction bearing in the rotor system is provided with photoelectric sensor, is located left be provided with acceleration sensor on the bearing frame.
Preferably, A, B sections of the rotating shaft in the rotor system are respectively used for placing two rolling bearings, and the two rolling bearings are positioned through a shaft shoulder of the rotating shaft in the rotor system.
Preferably, the rotor system has 4 end tooth connecting structures which are respectively between C and D, between D and E, between E and F and between F and G.
The utility model has the advantages that: the dynamic similarity simulation test bed is adopted for research, the rotor test bed with the arc-shaped end tooth connecting structure is designed based on the dynamic similarity principle, and the dynamic characteristic experiment is carried out on the designed test bed, so that the input cost of the experiment is greatly reduced, the risk coefficient of the experiment can be effectively reduced, finally, researchers can conveniently and efficiently and accurately explore the dynamic characteristic of the aero-engine, and reasonable research and judgment and timely improvement on the technology are made.
Drawings
Fig. 1 is a schematic structural view of a combined rotor test bed with a circular arc end tooth connecting structure provided by the present invention;
fig. 2 is a schematic structural view of the rotor system of the present invention;
fig. 3 is a cross-sectional view of the rotor system of the present invention.
In the figure: the device comprises a driving motor 1, a test bed base 2, a flexible coupling 3, an acceleration sensor 4, a rolling bearing 5, an eddy current displacement sensor 6, a photoelectric sensor 7, a motor speed regulator 8, a data collector 9 and a computer 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, a combined rotor test bed with a circular arc end tooth connection structure comprises a test bed base 2, a motor speed regulator 8, a data collector 9 and a computer 10, wherein two bearing seats are sequentially arranged on the test bed base 2, rolling bearings 5 are respectively arranged in the two bearing seats, a rotor system is arranged between the two rolling bearings 5, a driving motor 1 arranged beside the left bearing seat is arranged on the test bed base 2, the output end of the driving motor 1 is connected with the left end part of a rotating shaft in the rotor system through a flexible coupling 3 and drives the rotating shaft to rotate, the voltage is changed through the motor speed regulator 8 so as to control the rotating speed of the rotor system, one end of the rotating shaft in the rotor system, which is close to the left rolling bearing 5, is provided with an eddy current displacement sensor 6, the eddy current displacement sensor 6 inputs collected displacement signals into the data collector 9 after the displacement signals are processed by a pre-processor, a photoelectric sensor 7 is arranged at one end, close to a right rolling bearing 5, of a rotating shaft in the rotor system, the photoelectric sensor 7 inputs collected optical signals into a data collector 9, finally all the signals are input into a computer 10 through the data collector 9 to be analyzed, an acceleration sensor 4 is arranged on a bearing seat on the left side, and the acceleration sensor 4 inputs collected bearing vibration signals into the data collector 9.
The A, B sections of the rotating shaft in the rotor system are respectively used for placing two rolling bearings 5, and the two rolling bearings 5 are positioned through the shaft shoulders of the rotating shaft in the rotor system.
The total 4 department end tooth connection structure of rotor system are respectively between C and D, between D and E, between E and F and between F and G, and H and I are tight set structure for expanding for the axle is tight with expanding of dish, and the axial is respectively fixed with a nut, and five rim plates number of teeth are 24, and the circumference of dish is equipped with 8 through-holes that are used for placing the pull rod, still is equipped with the screw hole that is used for placing different specification screws in addition.
The utility model discloses constitute by rotor system, supporting system, driving system, data acquisition and analytic system and safety protection system. The present case adopts the similar simulation test bench of dynamics to study, has designed circular arc end tooth connection structure rotor test bench based on the similar principle of dynamics, carries out the dynamics experiment through the test bench to the design for the input cost greatly reduced of experiment can effectively reduce the risk coefficient of experiment, and the researcher of finally being convenient for explores aeroengine's dynamics characteristic high-efficiently, accurately, makes reasonable study and judge and improve in good time to the technique.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. A circular arc end tooth connection structure combined rotor test bed comprises a test bed foundation (2), a motor speed regulator (8), a data collector (9) and a computer (10), and is characterized in that two bearing seats are sequentially installed on the test bed foundation (2), rolling bearings (5) are installed in the two bearing seats, a rotor system is installed between the two rolling bearings (5), a driving motor (1) beside the left bearing seat is installed on the test bed foundation (2), the output end of the driving motor (1) is connected with the left end part of a rotating shaft in the rotor system through a flexible coupling (3), an eddy current displacement sensor (6) is arranged at one end, close to the left rolling bearing (5), of the rotating shaft in the rotor system, a photoelectric sensor (7) is arranged at one end, close to the right rolling bearing (5), of the rotating shaft in the rotor system, and an acceleration sensor (4) is arranged on the bearing seat positioned on the left side.
2. The combined rotor test bed with the circular arc end tooth connecting structure as claimed in claim 1, wherein A, B sections of the rotating shaft in the rotor system are respectively used for placing two rolling bearings (5), and the two rolling bearings (5) are positioned through a shaft shoulder of the rotating shaft in the rotor system.
3. The combined rotor test bed with the circular-arc end tooth connecting structure as claimed in claim 1, wherein the rotor system has 4 end tooth connecting structures, namely, between C and D, between D and E, between E and F and between F and G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473589.2U CN214251512U (en) | 2021-03-04 | 2021-03-04 | Circular arc end tooth connection structure combination rotor test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473589.2U CN214251512U (en) | 2021-03-04 | 2021-03-04 | Circular arc end tooth connection structure combination rotor test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214251512U true CN214251512U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120473589.2U Expired - Fee Related CN214251512U (en) | 2021-03-04 | 2021-03-04 | Circular arc end tooth connection structure combination rotor test bench |
Country Status (1)
| Country | Link |
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| CN (1) | CN214251512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166516A (en) * | 2021-12-06 | 2022-03-11 | 北京化工大学 | Stress test device and system for rotor system connected by arc-shaped end teeth |
-
2021
- 2021-03-04 CN CN202120473589.2U patent/CN214251512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166516A (en) * | 2021-12-06 | 2022-03-11 | 北京化工大学 | Stress test device and system for rotor system connected by arc-shaped end teeth |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |