CN213209419U - Rotor vibration characteristic test device - Google Patents
Rotor vibration characteristic test device Download PDFInfo
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- CN213209419U CN213209419U CN202022053234.6U CN202022053234U CN213209419U CN 213209419 U CN213209419 U CN 213209419U CN 202022053234 U CN202022053234 U CN 202022053234U CN 213209419 U CN213209419 U CN 213209419U
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Abstract
The utility model belongs to the technical field of rotor test equipment, concretely relates to rotor vibration characteristic test device. To not having the test device who is used for specially carrying out the experiment to the vibration characteristic of primary air fan shafting rotor not enough, the utility model discloses a following technical scheme: a rotor vibration characteristic testing apparatus includes: the testing assembly comprises a testing air pipe, a testing rotor and a bearing group with a seat for providing rotary support for the testing rotor; a drive assembly; the acquisition assembly comprises a vibration sensor, a vibration acquisition instrument and a data line which are arranged on the bearing group with the seat; the air flow reinforcing assembly generates additional air flow into the test air pipe; and a control component. The utility model has the advantages that: the primary air fan rotor can be simulated and the vibration characteristic data of the rotor can be collected; the airflow strengthening assembly is arranged, and the actual working condition of the primary air fan is closer.
Description
Technical Field
The utility model belongs to the technical field of rotor test equipment, concretely relates to rotor vibration characteristic test device.
Background
The primary air fan is one of the important devices of the thermal power plant, provides primary air with certain pressure and certain flow rate, dries the pulverized coal and sends the pulverized coal into a burner to provide heat required by volatilization and combustion of the pulverized coal, and simultaneously can coordinate with secondary air to provide combustion support for the combustion of the pulverized coal. The primary fan consists of a motor, an impeller, a shell, an air inlet box, a current collector, a base, an adjusting control system and the like.
The primary air fan shafting rotor often can appear noise, phenomenon such as vibration at high-speed operation in-process, and the fracture may be produced to serious the time, and the distortion causes very big hidden danger to production safety.
The existing test equipment for the vibration characteristic of a primary fan shafting rotor cannot accurately analyze the fault of the rotor under the operating condition. Need to develop a test device and carry out the analysis to primary air fan shafting rotor vibration characteristic, improve the reliability of rotor in the operation process to avoid appearing the accident.
Disclosure of Invention
The utility model discloses to not having the testing device or the current testing device structure that are used for carrying out the test to the vibration characteristic of primary air fan shafting rotor specially, there is not enough in improvement space, provide a rotor vibration characteristic testing arrangement to simulation primary air fan operational environment carries out experimental research to the vibration characteristic of primary air fan shafting rotor.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a rotor vibration characteristic testing apparatus, comprising:
the testing assembly comprises a testing air pipe, a testing rotor and a bearing group with a seat for providing rotary support for the testing rotor, and the testing rotor and the bearing group with the seat are both arranged in the testing air pipe;
the driving assembly drives the test rotor to rotate;
the acquisition assembly comprises a vibration sensor, a vibration acquisition instrument and a data line which are arranged on the bearing group with the seat;
the air flow reinforcing assembly generates additional air flow into the test air pipe;
the driving assembly and the airflow strengthening assembly are controlled by the control assembly, and the collecting assembly is connected with the control assembly.
The utility model discloses a rotor vibration characteristic test device, which is provided with a test component, a driving component and a collecting component, and can simulate a primary air fan rotor and collect rotor vibration characteristic data; the motor has low rotating speed, the wind generated by rotation is small, the real working condition of the primary fan cannot be well simulated, and after the airflow strengthening assembly is arranged, the wind speed and the pressure generated by the airflow strengthening assembly are large, the impact on the rotor is large, a flow field is formed, and the real working condition of the primary fan is closer to the real working condition of the primary fan; the control assembly is arranged to control the test conveniently.
As an improvement, the airflow strengthening assembly comprises a compressor and an air inlet pipe, a valve is arranged on the air inlet pipe, the compressor is connected with the air inlet end of the test air pipe through the air inlet pipe, and the compressor and the valve are controlled by the control assembly. The power of the compressor and the opening and closing degree of the valve can be adjusted through the control assembly, the air output and the air speed can be adjusted, and the vibration characteristics of the primary fan under various working conditions can be simulated and collected.
As an improvement, the control assembly comprises an air speed sensor arranged in the test air pipe, and the air speed sensor is connected with the control assembly. By arranging the wind speed sensor, the adjustment is more accurate.
As an improvement, the rotor vibration characteristic testing device further comprises an airflow recovery assembly, the airflow recovery assembly is located at the air outlet end of the testing air pipe, and the airflow recovery assembly is controlled by the control assembly. The airflow recovery assembly can form a slight negative pressure to which the gas can flow.
As an improvement, the airflow recovery assembly comprises an air outlet pipe connected with the air outlet end of the test air pipe, a negative pressure box connected with the air outlet pipe, a vacuum pipe connected with the negative pressure box, a vacuum valve arranged on the vacuum pipe and a vacuum pump connected with the vacuum pipe. The vacuum valve can adjust the air extraction amount to realize different negative pressures.
As a modification, the vacuum tube, the vacuum valve and the vacuum pump are two.
As an improvement, the control assembly comprises a negative pressure sensor arranged in the negative pressure box, and the negative pressure sensor is connected with the control assembly.
As an improvement, the driving assembly comprises a power assembly and a transmission assembly driven by the power assembly, and the transmission assembly is connected with the test rotor.
As an improvement, the power assembly comprises a motor and a gearbox, and the transmission assembly comprises a driving wheel, a driven wheel and a transmission belt.
As an improvement, the test air pipe is provided with a mounting plane, and the bearing group with the base is mounted on the mounting plane.
As an improvement, the test rotor is provided with a static blade and a movable blade, and the movable blade is controlled by the control assembly. The control assembly can adjust the opening of the movable blade, so that the test requirements are met, and vibration analysis is carried out.
As a refinement, the control assembly includes a control board and a control line.
The utility model discloses a rotor vibration characteristic test device's beneficial effect is: the test assembly, the driving assembly and the acquisition assembly are arranged, so that a primary air fan rotor can be simulated, and vibration characteristic data of the rotor can be acquired; the airflow strengthening component is arranged, can generate larger wind speed and wind quantity, has large impact on the rotor, forms a flow field and is closer to the real working condition of the primary fan; the control assembly is arranged to control the test conveniently.
Drawings
Fig. 1 is a perspective view (test duct half-section) of a rotor vibration characteristic test apparatus according to a first embodiment of the present invention.
Fig. 2 is a partial schematic view (test duct half-section) of a rotor vibration characteristic test apparatus according to a first embodiment of the present invention.
In the figure, 1, test assembly; 11. testing the air pipe; 12. testing the rotor; 13. a pedestal bearing; 14. a stationary blade; 15. moving blades;
2. a drive assembly; 21. a motor; 22. a gearbox; 23. a transmission assembly;
3. a collection assembly; 31. a vibration sensor; 32. a data line; 33. a vibration acquisition instrument;
4. an airflow enhancing assembly; 41. a compressor; 42. an air inlet pipe; 43. a valve;
5. a control component; 51. a wind speed sensor; 52. a negative pressure sensor; 53. a control panel;
6. a gas flow recovery assembly; 61. an air outlet pipe; 62. a negative pressure tank; 63. a vacuum tube; 64. a vacuum pump; 65. and a vacuum valve.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and are not all embodiments. Other embodiments obtained by persons skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the invention.
Referring to fig. 1 and 2, the utility model discloses a rotor vibration characteristic test device, rotor vibration characteristic test device includes:
the testing assembly comprises a testing air pipe, a testing rotor and a bearing group with a seat for providing rotary support for the testing rotor, and the testing rotor and the bearing group with the seat are both arranged in the testing air pipe;
the driving assembly drives the test rotor to rotate;
the acquisition assembly comprises a vibration sensor, a vibration acquisition instrument and a data line which are arranged on the bearing group with the seat;
the air flow reinforcing assembly generates additional air flow into the test air pipe;
the driving assembly and the airflow strengthening assembly are controlled by the control assembly, and the collecting assembly is connected with the control assembly.
The utility model discloses a rotor vibration characteristic test device, which is provided with a test component, a driving component and a collecting component, and can simulate a primary air fan rotor and collect rotor vibration characteristic data; the motor has low rotating speed, the wind generated by rotation is small, the real working condition of the primary fan cannot be well simulated, and after the airflow strengthening assembly is arranged, the wind speed and the pressure generated by the airflow strengthening assembly are large, the impact on the rotor is large, a flow field is formed, and the real working condition of the primary fan is closer to the real working condition of the primary fan; the control assembly is arranged to control the test conveniently.
Example one
Referring to fig. 1 and fig. 2, a rotor vibration characteristic testing apparatus according to a first embodiment of the present invention includes:
the testing assembly 1 comprises a testing air pipe 11, a testing rotor 12 and a set of bearings with seats 13 for providing rotary support for the testing rotor 12, wherein the testing rotor 12 and the set of bearings with seats 13 are both arranged in the testing air pipe 11;
the driving assembly 2 drives the test rotor 12 to rotate;
the acquisition assembly 3 comprises a vibration sensor 31, a vibration acquisition instrument 33 and a data line 32 which are arranged on the set of the bearing with seat 13;
the air flow strengthening component 4 generates additional air flow into the test air pipe 11;
the control assembly 5, the driving assembly 2 and the airflow strengthening assembly 4 are controlled by the control assembly 5, and the acquisition assembly 3 is connected with the control assembly 5.
In this embodiment, the airflow strengthening assembly 4 includes a compressor 41 and an air inlet pipe 42, a valve 43 is disposed on the air inlet pipe 42, the compressor 41 is connected to the air inlet end of the test air duct 11 through the air inlet pipe 42, and both the compressor 41 and the valve 43 are controlled by the control assembly 5. The power of the compressor 41 and the opening and closing degree of the valve 43 can be adjusted through the control assembly 5, the air output and the air speed can be adjusted, and the vibration characteristics of the primary air fan under various working conditions can be simulated and collected.
In this embodiment, the control module 5 includes an air velocity sensor 51 disposed in the test air duct 11, and the air velocity sensor 51 is connected to the control module 5. By providing the wind speed sensor 51, the adjustment is more accurate.
In this embodiment, the rotor vibration characteristic test device further includes an airflow recovery assembly 6, the airflow recovery assembly 6 is located at the air outlet end of the test air pipe 11, and the airflow recovery assembly 6 is controlled by the control assembly 5. The air flow recovery assembly 6 may create a slight negative pressure to which the gas will flow.
In this embodiment, the airflow recycling assembly 6 includes an air outlet pipe 61 connected to an air outlet end of the test air pipe 11, a negative pressure box 62 connected to the air outlet pipe 61, a vacuum pipe 63 connected to the negative pressure box 62, a vacuum valve 65 disposed on the vacuum pipe 63, and a vacuum pump 64 connected to the vacuum pipe 63. The vacuum valve 65 can adjust the air pumping amount to realize different negative pressures.
In this embodiment, there are two vacuum pipes 63, vacuum valves 65 and vacuum pumps 64.
In this embodiment, the control module 5 includes a negative pressure sensor 52 disposed in the negative pressure tank 62, and the negative pressure sensor 52 is connected to the control module 5.
In this embodiment, the driving assembly 2 includes a power assembly and a transmission assembly 23 driven by the power assembly, and the transmission assembly 23 is connected to the test rotor 12.
In this embodiment, the power assembly includes a motor 21 and a gearbox 22, and the transmission assembly 23 includes a driving wheel, a driven wheel and a transmission belt.
In this embodiment, the test air duct 11 has a mounting plane, and the set of seated bearings 13 is mounted on the mounting plane.
In this embodiment, the test rotor 12 is provided with a stationary blade 14 and a movable blade 15, and the movable blade 15 is controlled by the control unit 5. The control assembly 5 can adjust the opening degree of the movable blade 15, so that the test requirement is met, and vibration analysis is carried out.
In this embodiment, the control assembly 5 includes a control board 53 and control lines.
In this embodiment, there may be some air leakage between the transmission assembly 23 and the test air duct 11, but the accuracy of the test is less affected. In other embodiments, the actuator assembly 23 may be sealed to the test ductwork 11.
The utility model discloses a rotor vibration characteristic test device's beneficial effect is: the test assembly 1, the driving assembly 2 and the acquisition assembly 3 are arranged, so that a primary air fan rotor can be simulated and vibration characteristic data of the rotor can be acquired; the airflow strengthening component 4 is arranged, the airflow strengthening component 4 can generate larger wind speed and wind quantity, the impact on the rotor is large, a flow field is formed, and the actual working condition of the primary fan is closer; the control component 5 is arranged to control the test conveniently.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto but is intended to cover various modifications and changes, including but not limited to the details shown in the drawings and described in the foregoing detailed description. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the following claims.
Claims (10)
1. A rotor vibration characteristic test device is characterized in that: the rotor vibration characteristic test device includes:
the testing assembly (1) comprises a testing air pipe (11), a testing rotor (12) and a bearing with a seat (13) group for providing rotary support for the testing rotor (12), wherein the testing rotor (12) and the bearing with a seat (13) group are both arranged in the testing air pipe (11);
the driving assembly (2), the driving assembly (2) drives the test rotor (12) to rotate;
the acquisition assembly (3) comprises a vibration sensor (31), a vibration acquisition instrument (33) and a data line (32), wherein the vibration sensor (31), the vibration acquisition instrument and the data line are mounted on the set of the bearing with the seat (13);
an air flow strengthening assembly (4), wherein the air flow strengthening assembly (4) generates additional air flow into the test air pipe (11);
the driving assembly (2) and the airflow strengthening assembly (4) are controlled by the control assembly (5), and the collecting assembly (3) is connected with the control assembly (5).
2. A rotor vibration characteristic test apparatus according to claim 1, wherein: the air flow reinforcing assembly (4) comprises a compressor (41) and an air inlet pipe (42), a valve (43) is arranged on the air inlet pipe (42), the compressor (41) is connected with the air inlet end of the test air pipe (11) through the air inlet pipe (42), and the compressor (41) and the valve (43) are controlled by the control assembly (5).
3. A rotor vibration characteristic test apparatus according to claim 2, wherein: the control assembly (5) comprises an air speed sensor (51) arranged in the test air pipe (11), and the air speed sensor (51) is connected with the control assembly (5).
4. A rotor vibration characteristic test apparatus according to claim 1, wherein: the rotor vibration characteristic test device further comprises an air flow recovery assembly (6), the air flow recovery assembly (6) is located at the air outlet end of the test air pipe (11), and the air flow recovery assembly (6) is controlled by the control assembly (5).
5. The rotor vibration characteristic test apparatus according to claim 4, wherein: the air flow recovery assembly (6) comprises an air outlet pipe (61) connected with an air outlet end of the test air pipe (11), a negative pressure box (62) connected with the air outlet pipe (61), a vacuum pipe (63) connected with the negative pressure box (62), a vacuum valve (65) arranged on the vacuum pipe (63) and a vacuum pump (64) connected with the vacuum pipe (63).
6. A rotor vibration characteristic test apparatus according to claim 5, wherein: the vacuum pipe (63), the vacuum valve (65) and the vacuum pump (64) are two; the control assembly (5) comprises a negative pressure sensor (52) arranged in the negative pressure box (62), and the negative pressure sensor (52) is connected with the control assembly (5).
7. A rotor vibration characteristic test apparatus according to claim 1, wherein: the driving assembly (2) comprises a power assembly and a transmission assembly (23) driven by the power assembly, and the transmission assembly (23) is connected with the test rotor (12).
8. A rotor vibration characteristic test apparatus according to claim 7, wherein: the power assembly comprises a motor (21) and a gearbox (22), and the transmission assembly (23) comprises a driving wheel, a driven wheel and a transmission belt.
9. A rotor vibration characteristic test apparatus according to claim 1, wherein: the test air pipe (11) is provided with a mounting plane, and the bearing with a seat (13) group is mounted on the mounting plane.
10. A rotor vibration characteristic test apparatus according to claim 1, wherein: a static blade (14) and a movable blade (15) are arranged on the test rotor (12), and the movable blade (15) is controlled by the control assembly (5); the control assembly (5) includes a control board (53) and control lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053234.6U CN213209419U (en) | 2020-09-18 | 2020-09-18 | Rotor vibration characteristic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022053234.6U CN213209419U (en) | 2020-09-18 | 2020-09-18 | Rotor vibration characteristic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213209419U true CN213209419U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022053234.6U Active CN213209419U (en) | 2020-09-18 | 2020-09-18 | Rotor vibration characteristic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213209419U (en) |
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2020
- 2020-09-18 CN CN202022053234.6U patent/CN213209419U/en active Active
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