CN111272402A - Rotor dynamics test device with rotary disc capable of being fixed at multiple positions of rotating shaft - Google Patents
Rotor dynamics test device with rotary disc capable of being fixed at multiple positions of rotating shaft Download PDFInfo
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- CN111272402A CN111272402A CN202010152597.7A CN202010152597A CN111272402A CN 111272402 A CN111272402 A CN 111272402A CN 202010152597 A CN202010152597 A CN 202010152597A CN 111272402 A CN111272402 A CN 111272402A
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- rotor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The application belongs to the field of aircraft engines, and particularly relates to a rotordynamics test device with a rotary disk capable of being fixed at multiple positions of a rotating shaft. The method comprises the following steps: mounting platform (1), tester support (2), rotor (3), rotary disk (4) and toper cover (5). The tester support (2) is fixed on the mounting platform (1); one end of the rotor (3) is connected with a driving motor through a coupler, and the rotor (3) is installed on the two tester supports (2) through bearings; the rotating disc (4) is mounted on the rotor (3) through a conical sleeve (5). The rotor dynamics test device with the rotary disk capable of being fixed at multiple positions of the rotary shaft can realize the function of fixing the rotary disk after moving along any axial position on the rotor between the two supports, so that the requirement on the flexibility of the device in the rotor dynamics test research is met.
Description
Technical Field
The application belongs to the field of aircraft engines, and particularly relates to a rotordynamics test device with a rotary disk capable of being fixed at multiple positions of a rotating shaft.
Background
During the rotation of the rotor, the vibration problem is inevitable due to the reasons of processing error, installation deviation, material characteristics and the like. Smaller vibrations do not affect the rotor operation, but too large vibrations may cause a series of problems such as structural fatigue, accelerated wear of bearings, and sometimes even damage the equipment causing large losses. Because the general structure of equipment with rotary device is comparatively complicated, when the vibration problem appears, other secondary faults still can appear, and multiple factor coupling brings the difficulty for the feature extraction of vibration fault, and the vibration reason is difficult to confirm, so when failure analysis, often can utilize simple structure's rotor dynamics tester to simulate vibration fault. If the rotating disk in the rotor dynamics test device can be fixed at a plurality of positions on the rotating shaft, different vibration faults can be simulated more fully, and better efficiency is brought to the rotor dynamics test.
In the existing rotor dynamics test device, the structure that one rotating shaft is provided with one or more rotating disks is in many forms, but the rotating disks are fixed in the installation position on the shaft and cannot move axially along the shaft. If the position of the rotating disc is required to move along the axial direction in the test process to search the vibration characteristics of the rotor when the rotating disc is at different positions, a new test device needs to be redesigned, and certain time loss and economic loss are brought to the test.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The purpose of this application is to provide a rotordynamics test device that rotary disk can be fixed at pivot multiposition to solve at least one problem that prior art exists.
The technical scheme of the application is as follows:
a rotor dynamics test device with a rotary disk capable of being fixed at multiple positions of a rotating shaft comprises:
mounting a platform;
the tester support is fixed on the mounting platform;
one end of the rotor is connected with a driving motor through a coupler, and the rotor is installed on the two tester supports through bearings;
a rotating disk mounted on the rotor by a conical sleeve.
Optionally, the tester support is mounted on the mounting platform by bolts.
Optionally, one end of the rotor is provided with a flange, and the flange is connected with the driving motor through a coupler.
Optionally, the tapered sleeve has a threaded section and a tapered section, a mounting hole is formed in the center of the rotating disk, the mounting hole has a taper matched with the tapered section, the rotating disk is sleeved on the tapered section of the tapered sleeve, and a locking nut is fitted to the rotor.
Optionally, a through groove is axially arranged on the conical section.
Optionally, the width of the through slot is one twentieth of the rotor diameter.
Optionally, a flange edge is arranged at the end of the conical section of the conical sleeve, and a plurality of threaded holes are formed in the flange edge along the circumferential direction.
Optionally, a plurality of rotating discs are mounted on the rotor.
The invention has at least the following beneficial technical effects:
the rotary disk of this application can be at the fixed rotordynamics test device of pivot multiposition, fixes the rotary disk on the rotor through the toper cover, can realize on the rotor between two tester supports, and the function of fixing again after moving the rotary disk along axial optional position need not the split tester, can satisfy the needs to the device flexibility in the experimental research of rotordynamics.
Drawings
FIG. 1 is a schematic view of a rotordynamic test device with a rotating disk that can be fixed at multiple positions on a rotating shaft according to one embodiment of the present application;
FIG. 2 is a schematic view of a rotary disk mounting arrangement of the rotordynamic testing device in which the rotary disk of one embodiment of the present application can be fixed at multiple positions on a rotating shaft;
FIG. 3 is a schematic view of a tapered sleeve of a rotordynamic test device having a rotating disk that is fixed in multiple positions on a rotating shaft according to one embodiment of the present application;
FIG. 4 is a schematic view of the installation of the tapered sleeve of the rotor dynamics testing device, in which the rotating disk can be fixed at multiple positions of the rotating shaft, according to one embodiment of the present application.
Wherein:
1-mounting a platform; 2-tester support; 3-a rotor; 4-rotating the disc; 5-conical sleeve.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 4.
The application provides a rotary disk can be at fixed rotor dynamics testing arrangement of pivot multiposition, includes: mounting platform 1, tester support 2, rotor 3, rotary disk 4 and taper sleeve 5.
Specifically, a plurality of mounting holes are formed in the mounting platform 1, two tester supports 2 can be arranged, a connecting part is arranged at the bottom of each tester support 2, a plurality of through holes are formed in the connecting part, and each tester support 2 is detachably mounted on the mounting platform 1 through a plurality of bolts; one end of the rotor 3 can be provided with a flange, the flange is connected with a driving motor through a coupler, the rotor 3 is arranged on the two tester supports 2 through bearings, and a rotatable rotor dynamics test device is formed under the action of the driving force of the driving motor; the rotating disc 4 is mounted on the rotor 3 by means of a conical sleeve 5, on which rotor 3 one or more rotating discs 4 can be mounted.
The rotor dynamics test device with the rotary disk capable of being fixed at multiple positions of the rotating shaft is characterized in that the purpose that the rotary disk 4 can be fixed at multiple positions on the rotor is achieved, the rotor 3 between two tester supports 2 is designed into a shaft with the same diameter, and one or more rotary disks 4 are connected with the rotor 3 through conical sleeves 5 respectively.
In an embodiment of this application, the internal diameter of taper sleeve 5 and rotor 3 transition fit, taper sleeve 5 have screw thread section and toper section, and the mounting hole has been seted up at the center of rotary disk 4, and the mounting hole has the tapering with the toper section looks adaptation of taper sleeve 5, and the tapering of mounting hole should not be too big generally, and rotary disk 4 cover is established on the toper section of taper sleeve 5, and cooperation lock nut installs on rotor 3.
Advantageously, in one embodiment of the present application, the tapered section of the tapered sleeve 5 is provided with a through slot in the axial direction.
Advantageously, in the present embodiment, the width of the through slot is set to be one twentieth of the diameter of the rotor 3. The provision of a through slot in the conical section of the conical sleeve 5 allows for a deformation when the rotary disc 4 is mounted in the conical section of the conical sleeve 5, thereby making the connection of the rotary disc 4 to the rotor 3 more stable.
Advantageously, in this embodiment, the end of the tapered section of the tapered sleeve 5 may further be provided with a flange edge, and one or more threaded holes are circumferentially formed in the flange edge, so that the tapered sleeve 5 can be conveniently detached by matching with screws.
The utility model provides a rotary disk can be at the fixed rotordynamics test device of pivot multiposition, when fixed, at first according to the position of experimental demand selection rotary disk 4, establish rotary disk 4 cover on rotor 3 after, arrange lock nut and taper sleeve 5 respectively in the both sides of rotary disk 4, then install rotary disk 4 at the toper section of taper sleeve 5, utilize lock nut to screw up the screw thread section of taper sleeve 5 at last to with rotary disk 4 and rotor 3 fixed connection.
The utility model provides a rotary disk can be at the fixed rotor dynamics test device of pivot multiposition, and at the tightening in-process, lock nut promotes rotary disk 4 and removes to the major diameter direction of taper sleeve 5, because the toper section of taper sleeve 5 has logical groove, can produce the deformation to change the cooperation of taper sleeve 5 and rotor 3 and be tight fit, screw up certain moment after, then rotary disk 4 is fixed with rotor 3.
When the fixing structure is required to be disassembled, the locking nut can be firstly screwed off, one or more screws are installed in the threaded holes of the flange edge of the conical section of the conical sleeve 5, the fixing structure is disassembled through the relative thrust of the screws to the rotating disc 4 in the screwing process, the rotating disc 4 can be fixed again after moving, and the disassembly test device is not required.
The utility model provides a rotary disk can be at the fixed rotordynamics test device of pivot multiposition, fix the rotary disk on rotor 3 through taper sleeve 5, can fix again after 3 axial optional position removal rotary disks 4 of rotor along between two tester supports 2, realize that rotary disk 4 can realize fixedly at 3 multiposition of rotor promptly, need not the split tester, satisfy the needs to the device flexibility in the experimental research of rotordynamics, thereby obtain the rotordynamics test device of different vibration characteristics.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A rotordynamic testing apparatus in which a rotating disk is fixable at a plurality of positions on a rotating shaft, comprising:
a mounting platform (1);
the tester support (2) is fixed on the mounting platform (1);
one end of the rotor (3) is connected with a driving motor through a coupler, and the rotor (3) is installed on the two tester supports (2) through bearings;
a rotating disk (4), the rotating disk (4) being mounted on the rotor (3) by means of a conical sleeve (5).
2. Rotordynamic test device with a rotary disc fixable in rotation axis multi-position, according to claim 1, characterized in that said tester seat (2) is mounted on said mounting platform (1) by means of bolts.
3. The rotordynamic test device with a rotating disc fixable at multiple positions on a rotating shaft according to claim 1, wherein one end of said rotor (3) is provided with a flange, and said flange is connected with a driving motor through a coupling.
4. The rotor dynamics test device with the rotating disc capable of being fixed at multiple positions of the rotating shaft according to claim 1 is characterized in that the tapered sleeve (5) is provided with a threaded section and a tapered section, a mounting hole is formed in the center of the rotating disc (4) and provided with a taper matched with the tapered section, the rotating disc (4) is sleeved on the tapered section of the tapered sleeve (5), and a matched locking nut is mounted on the rotor (3).
5. The rotordynamic test device with a rotating disk capable of being fixed at multiple positions on a rotating shaft as claimed in claim 4, wherein the tapered section is provided with a through groove along the axial direction.
6. A rotordynamic testing device with a rotating disc fixable in position on a rotating shaft according to claim 5, characterised in that said through slots have a width of one twentieth of the diameter of the rotor (3).
7. The rotordynamic test device with a rotating disc capable of being fixed at multiple positions of a rotating shaft as claimed in claim 6, wherein the end of the conical section of the conical sleeve (5) is provided with a flange edge, and the flange edge is circumferentially provided with a plurality of threaded holes.
8. Rotordynamic test device with rotating disc fixable in rotation axis multi-position, according to claim 1, characterized in that on said rotor (3) a plurality of rotating discs (4) are mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152597.7A CN111272402A (en) | 2020-03-06 | 2020-03-06 | Rotor dynamics test device with rotary disc capable of being fixed at multiple positions of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152597.7A CN111272402A (en) | 2020-03-06 | 2020-03-06 | Rotor dynamics test device with rotary disc capable of being fixed at multiple positions of rotating shaft |
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| Publication Number | Publication Date |
|---|---|
| CN111272402A true CN111272402A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010152597.7A Pending CN111272402A (en) | 2020-03-06 | 2020-03-06 | Rotor dynamics test device with rotary disc capable of being fixed at multiple positions of rotating shaft |
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|---|---|
| CN (1) | CN111272402A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520963A (en) * | 2009-04-17 | 2009-09-02 | 哈尔滨工业大学 | Comprehensive experimental facility of single-disk rotor |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| KR20140135464A (en) * | 2013-05-16 | 2014-11-26 | 한국수력원자력 주식회사 | a testing device for detecting fault signals of journal bearing |
| CN107314893A (en) * | 2017-05-08 | 2017-11-03 | 上海交通大学 | A kind of modular multi-function rotor testbed |
| CN107817107A (en) * | 2016-09-13 | 2018-03-20 | 中国航发商用航空发动机有限责任公司 | Elastic support structure and turbine engine rotor testing stand |
| CN108918066A (en) * | 2018-06-28 | 2018-11-30 | 东北大学 | A kind of seam allowance connection structure rotor experiment table and test method |
-
2020
- 2020-03-06 CN CN202010152597.7A patent/CN111272402A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520963A (en) * | 2009-04-17 | 2009-09-02 | 哈尔滨工业大学 | Comprehensive experimental facility of single-disk rotor |
| KR20140135464A (en) * | 2013-05-16 | 2014-11-26 | 한국수력원자력 주식회사 | a testing device for detecting fault signals of journal bearing |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN107817107A (en) * | 2016-09-13 | 2018-03-20 | 中国航发商用航空发动机有限责任公司 | Elastic support structure and turbine engine rotor testing stand |
| CN107314893A (en) * | 2017-05-08 | 2017-11-03 | 上海交通大学 | A kind of modular multi-function rotor testbed |
| CN108918066A (en) * | 2018-06-28 | 2018-11-30 | 东北大学 | A kind of seam allowance connection structure rotor experiment table and test method |
Non-Patent Citations (3)
| Title |
|---|
| 师向炜: "转子***振动实验台设计", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 马小晶 等: "单盘柔性转子振动特性试验研究", 《机床与液压》 * |
| 黄晶晶 等: "双盘转子***优化算法与试验", 《航空动力学报》 * |
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Application publication date: 20200612 |
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