CN214793746U - Rotor dynamic test device - Google Patents
Rotor dynamic test device Download PDFInfo
- Publication number
- CN214793746U CN214793746U CN202120836703.3U CN202120836703U CN214793746U CN 214793746 U CN214793746 U CN 214793746U CN 202120836703 U CN202120836703 U CN 202120836703U CN 214793746 U CN214793746 U CN 214793746U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- rotor dynamic
- dynamic test
- gear disc
- key phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a rotor dynamic test device, it includes the support frame and arranges in the support frame: the rotor dynamic simulation assembly comprises a motor with controllable rotating speed, a rotating shaft connected with the motor and a gear disc fixed on the rotating shaft, wherein the gear disc is provided with a key phase hole; the detection assembly comprises a speed measurement sensor and a key phase measurement piece, wherein the detection end of the speed measurement sensor faces the gear disc and is used for detecting the rotating speed of the gear disc, and the key phase measurement piece detects the position of the key phase hole and is used for detecting the key phase of the rotating shaft. The utility model discloses a rotor dynamic test device is through simulation steam turbine rotor rising and falling speed and the operation of constant speed to utilize integrated determine module to obtain various parameters, and then for follow-up steam turbine failure analysis diagnosis provides data support, solved the poor problem of current rotor dynamic test equipment integration nature.
Description
Technical Field
The utility model relates to a rotor dynamic test device especially relates to a rotor dynamic test device of steam turbine.
Background
The rotor is a core component of various power machines, and heavy-load and high-speed rotor systems such as modern large-scale gas turbine rotors, steam turbine rotors and the like are supported by fluid dynamic pressure sliding bearings, so that a matched rotor test bed is established, various parameters of the rotor during acceleration and deceleration and constant-speed operation are simulated, and further, data support is provided for subsequent fault analysis and diagnosis, and great significance is brought to the research of the rotor systems. However, the rotor test bed used in the current market is large in size, heavy in weight, nonstandard in size and single in control and adjustment mode, and is difficult to integrate in a cabinet for centralized demonstration and display.
Therefore, a rotor dynamic test device is needed to solve the problem of poor integration of the existing rotor dynamic test equipment.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings in the prior art, an object of the present invention is to provide a rotor dynamic test device for solving the problem of poor integration of the rotor dynamic test equipment in the prior art.
To achieve the above and other related objects, the present invention provides a rotor dynamic test apparatus. It includes the support frame and arranges in the support frame:
the rotor dynamic simulation assembly comprises a motor with controllable rotating speed, a rotating shaft connected with the motor and a gear disc fixed on the rotating shaft, wherein the gear disc is provided with a key phase hole;
the detection assembly comprises a speed measurement sensor and a key phase measurement piece, wherein the detection end of the speed measurement sensor faces the gear disc and is used for detecting the rotating speed of the gear disc, and the key phase measurement piece detects the position of the key phase hole and is used for detecting the key phase of the rotating shaft.
As described above, the utility model discloses a rotor dynamic test device has following beneficial effect: the utility model discloses a rotor dynamic test device is at the during operation, the motor drives the pivot is rotated and is simulated steam turbine rotor's rotating state in proper order, and the pivot further drives the toothed disc and rotates, obtains corresponding rotational speed and key looks parameter through tacho sensor and key looks measuring part to follow-up failure analysis diagnosis for steam turbine rotor provides data support with this. The utility model discloses a rotor dynamic test device is through simulation steam turbine rotor rising and falling speed and the constant speed operation and utilize integrated determine module to obtain various parameters, comes to provide data support for follow-up steam turbine failure analysis and diagnosis.
Preferably, the motor is connected with the rotating shaft through a coupler, so that the motor is convenient to disassemble and maintain and plays a certain role in buffering and damping.
Preferably, the detecting component includes axial displacement sensor, be equipped with a link on the support frame, the link has and wears to establish epaxial installation department rotates, axial displacement sensor sets up on the installation department, and the orientation the toothed disc for detect with the distance between the toothed disc. The axial displacement sensor is used for simulating the axial displacement of the turbine rotor in the operation process, and corresponding parameters are obtained according to the axial displacement sensor.
Preferably, in order to ensure that the displacement sensor can freely move in the axial direction, the connecting frame is slidably arranged on the supporting frame and slides along the axial direction of the rotating shaft.
Preferably, the detection assembly comprises a three-axis accelerometer disposed in a bearing supporting the shaft. The bearing is used for supporting the rotation of the rotating shaft; the triaxial accelerometer is used as a tile vibration sensor and obtains tile vibration parameters in the operation process of the turbine rotor, and further used for guiding subsequent fault analysis and diagnosis.
Preferably, the detection assembly further comprises a temperature sensor for detecting the temperature of the rotating shaft, and the temperature sensor is used for obtaining the temperature parameter of the rotating shaft during the operation of the turbine rotor and further guiding the subsequent fault analysis and diagnosis.
Preferably, the detection assembly further comprises a shaft vibration sensor for detecting vibration of the rotating shaft, and shaft vibration parameters of the turbine rotor during operation are obtained by using the shaft vibration sensor and are also further used for guiding subsequent fault analysis and diagnosis.
Drawings
Fig. 1 shows a schematic diagram of a rotor dynamic test device according to the present invention.
Fig. 2 is a schematic view of another angle of the rotor dynamic test device of the present invention.
Fig. 3 shows an example of the output of the rotational speed parameter of the dynamic rotor testing apparatus according to the present invention.
Description of the element reference numerals
1 electric machine
2 shaft coupling
3 rotating shaft
4 gear disc
5 key phase detector
6-axis vibration sensor
7 three-axis accelerometer
8 speed measuring sensor
9 Displacement sensor
10 sliding table
11 support frame
12 support beam
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1 to 2, the present invention mainly provides a rotor dynamic test device, which comprises a support frame 11 and a rotor disposed in the support frame 11:
the rotor dynamic simulation assembly comprises a motor 1 with controllable rotating speed, a rotating shaft 3 connected with the motor 1, and a gear disc 4 fixed on the rotating shaft 3, wherein the gear disc 4 is provided with a key phase hole;
the detection assembly comprises a speed measuring sensor 8 and a key phase measuring piece, wherein the detection end of the speed measuring sensor 8 faces the gear disc 4 and is used for detecting the rotating speed of the gear disc 4, and the key phase measuring piece detects the position of the key phase hole and is used for detecting the key phase of the rotating shaft 3.
In this embodiment, during operation, the motor 1 drives the rotating shaft 3 to rotate, so as to change the speed of the rotating shaft 3 by controlling the rotating speed of the motor, so as to simulate different rotating speed operating states of the turbine rotor, the rotating shaft 3 further drives the gear disc 4 to rotate, and the corresponding rotating speed and key phase parameters are obtained through the speed measuring sensor 8 and the key phase measuring component, so as to provide data support for subsequent fault analysis and diagnosis of the turbine rotor.
As shown in fig. 1 or fig. 2, in order to control the rotation speed of the motor 1 more accurately and more stably, the motor 1 used in the present embodiment is a dc motor, and the dc motor has excellent starting and speed-regulating performance.
In this embodiment, as shown in fig. 1 or fig. 2, the motor 1 is connected to the rotating shaft 3 through the coupling 2, so as to facilitate disassembly and maintenance, and play a role in buffering and damping.
As shown in fig. 1 or fig. 2, the detecting assembly further includes an axial displacement sensor 9, a connecting frame is disposed on the supporting frame 11, the connecting frame has an installation portion penetrating through the rotating shaft 3, and the axial displacement sensor 9 is disposed on the installation portion and faces the gear plate 4 for detecting a distance between the axial displacement sensor and the gear plate 4. The axial displacement sensor 9 is used to simulate the axial displacement of the steam turbine during operation and to obtain corresponding parameters. In the present embodiment, two displacement sensors 9 are used for more accurate axial displacement, and the two displacement sensors 9 are symmetrically disposed on the mounting portion with respect to the rotating shaft 3.
Still further, in order to ensure that the displacement sensor 9 can move freely in the axial direction, a sliding table 10 is fixed on the supporting beam 12, the connecting frame is slidably arranged on the sliding table 10, and the axial displacement of the displacement sensor 9 can be adjusted on line through the sliding table 10, as shown in fig. 1 or fig. 2.
As shown in fig. 1 or fig. 2, the detecting assembly in this embodiment may further include a triaxial accelerometer 7, where the triaxial accelerometer 7 is disposed in a bearing supporting the rotating shaft 3, and the triaxial accelerometer 7 is used as a watt vibration sensor and obtains watt vibration parameters during the operation of the turbine rotor, and further used to guide subsequent fault analysis and diagnosis. In the embodiment, in order to ensure the precision of the device, two triaxial accelerometers 7 are arranged, wherein one accelerometer is arranged between the motor 1 and the coupler 2, and a bearing is not arranged on the accelerometer; and the other is arranged at the tail end of the rotating shaft 3, and a bearing is arranged on the other and is used for supporting the rotating shaft 3 to rotate.
Further, in this embodiment, the detection component is further provided with a temperature sensor for detecting the temperature of the rotating shaft 3, and the temperature sensor is used for obtaining the temperature parameter of the turbine rotor during operation, and further guiding the subsequent fault analysis and diagnosis. Also in the present embodiment, the temperature sensor is fixed by the support beam 12.
Still further, as shown in fig. 1 or fig. 2, the detecting assembly of the present embodiment further includes a shaft vibration sensor 6 for detecting vibration of the rotating shaft 3, and the shaft vibration sensor 6 is used to obtain shaft vibration parameters during operation of the turbine rotor, and further used to guide subsequent fault analysis and diagnosis. Also in order to ensure the precision of the device, a plurality of shaft vibration sensors 6 are also provided, and in this embodiment, two sets of two shaft vibration sensors 6 are provided in total, each set being fixed to the rotary shaft 3 by a support beam 12.
In the present embodiment, as shown in fig. 1 or fig. 2, the supporting frame 11 uses a 3U/19 inch standard cabinet, which is a rectangular box without an upper cover and with a long side opening; and the support frame 11 is provided with a support beam 12 parallel to the rotating shaft 3, wherein both ends of the support beam 12 are fixed on two opposite side surfaces of the support frame 11, and the sensors are intensively mounted through the support beam 12. In this embodiment, the detecting component includes thirteen sensors including the speed measuring sensor 8 and the key phase detecting element 5, wherein three speed measuring sensors 8, one key phase detecting element 5, two displacement sensors 9, two three-axis accelerometers 7, one temperature sensor, and four axis vibration sensors 6; the detection of each parameter is carried out by arranging a plurality of sensors, the detection precision is improved, and the average value can be extracted as required data.
In the present embodiment, a speed graph as shown in fig. 3 is obtained by simulating the turbine rotor up-down speed and the constant speed operation, and using the speed measurement sensor 8, wherein the abscissa represents the operation time in seconds, and the ordinate represents the percentage of the rotation speed.
To sum up, the utility model relates to a rotor dynamic test device is through simulation steam turbine rotor rising and falling speed and the operation of constant speed to utilize integrated determine module to obtain various parameters, and then for follow-up steam turbine failure analysis diagnosis provides data support, solved the poor problem of current rotor dynamic test equipment integration nature. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A rotor dynamic test device is characterized in that: including the support frame and arrange in the support frame:
the rotor dynamic simulation assembly comprises a motor with controllable rotating speed, a rotating shaft connected with the motor and a gear disc fixed on the rotating shaft, wherein the gear disc is provided with a key phase hole;
the detection assembly comprises a speed measurement sensor and a key phase measurement piece, wherein the detection end of the speed measurement sensor faces the gear disc and is used for detecting the rotating speed of the gear disc, and the key phase measurement piece detects the position of the key phase hole and is used for detecting the key phase of the rotating shaft.
2. A rotor dynamic test apparatus as claimed in claim 1, wherein: the motor is connected with the rotating shaft through a coupler.
3. A rotor dynamic test apparatus as claimed in claim 1, wherein: the detection assembly comprises an axial displacement sensor, a connecting frame is arranged on the support frame, the connecting frame is provided with a penetrating installation part in the rotating shaft, the axial displacement sensor is arranged on the installation part and faces the gear disc for detecting the distance between the detection assembly and the gear disc.
4. A rotor dynamic test apparatus as claimed in claim 3, wherein: the connecting frame is arranged on the supporting frame in a sliding mode, and the connecting frame slides along the axial direction of the rotating shaft.
5. A rotor dynamic test apparatus as claimed in claim 1, wherein: the detection assembly includes a triaxial accelerometer disposed in a bearing supporting the shaft.
6. A rotor dynamic test apparatus as claimed in claim 1, wherein: the detection assembly further comprises a temperature sensor for detecting the temperature of the rotating shaft.
7. A rotor dynamic test apparatus as claimed in claim 1, wherein: the detection assembly further comprises a shaft vibration sensor for detecting vibration of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120836703.3U CN214793746U (en) | 2021-04-22 | 2021-04-22 | Rotor dynamic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120836703.3U CN214793746U (en) | 2021-04-22 | 2021-04-22 | Rotor dynamic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214793746U true CN214793746U (en) | 2021-11-19 |
Family
ID=78688593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120836703.3U Active CN214793746U (en) | 2021-04-22 | 2021-04-22 | Rotor dynamic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214793746U (en) |
-
2021
- 2021-04-22 CN CN202120836703.3U patent/CN214793746U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205898448U (en) | Line gear transmission test bench | |
| CN103900813B (en) | The measurement mechanism of a kind of ball screw turns inertia and moment of friction | |
| CN108956068A (en) | A kind of rubbing test device turning stator | |
| CN104296927B (en) | Electric main shaft dynamic balance performance test experimental system | |
| CN111215648B (en) | Electric spindle reliability rapid experiment loading method and loading system | |
| CN104122036A (en) | Static-dynamic balance monitoring device for routine test centrifugal machine | |
| CN202886083U (en) | Analytic system for dynamic virtual vibration testing of high-speed spindle | |
| CN202417987U (en) | Diagnosis and test device for fan faults | |
| CN214793746U (en) | Rotor dynamic test device | |
| CN108957032B (en) | Dynamic test signal source generating device of rotating speed sensor | |
| CN201164928Y (en) | Laser balance adjustment apparatus | |
| CN203981346U (en) | Routine test hydro-extractor is quiet-mobile equilibrium monitoring device | |
| CN113588262B (en) | Machine tool spindle load working condition simulation device and dynamic torque application method | |
| CN210037199U (en) | Rotating machinery dynamic mechanical quantity measurement experimental device | |
| CN212932679U (en) | Adjustable speed sensor performance testing device | |
| CN209783785U (en) | torque fluctuation tester for torque motor | |
| CN110146280B (en) | Experimental device and experimental method for measuring dynamic mechanical quantity of rotary machine | |
| CN208860290U (en) | Capstan head roller bearing mounting surface flatness of contributing and mounting hole testing apparatus for verticality | |
| CN111766004A (en) | Motor torque measuring device | |
| CN208125328U (en) | A kind of large size rigid rotator imbalance fault automatic balancing arrangement | |
| CN211825003U (en) | High-speed electric spindle working condition simulation test bed | |
| CN211697865U (en) | Rotation speed signal calibration device based on Schneider M340PLC and configuration king | |
| CN219996478U (en) | Single rotor wing aerodynamic characteristic testing device under low density environment | |
| CN109696286A (en) | A kind of high-speed electric main shaft dynamically load vibration measurement device | |
| CN220437649U (en) | Online calibration device for torque of dynamometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |