CN212905310U - Novel rotating machinery fault diagnosis device - Google Patents
Novel rotating machinery fault diagnosis device Download PDFInfo
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- CN212905310U CN212905310U CN202021426781.8U CN202021426781U CN212905310U CN 212905310 U CN212905310 U CN 212905310U CN 202021426781 U CN202021426781 U CN 202021426781U CN 212905310 U CN212905310 U CN 212905310U
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Abstract
The utility model discloses a novel rotating machinery fault diagnosis device, which comprises an optical platform and other components, wherein an XY axis precision fine tuning platform, a torque and rotation speed sensor and a round bar are sequentially arranged on the optical platform along the same straight line path; a motor is fixedly connected to the XY-axis precise fine adjustment platform, an output shaft of the motor is connected with one side shaft of the torque and rotation speed sensor through a first coupler, and the other side shaft of the torque and rotation speed sensor is connected with the end part of the round rod through a second coupler; the torque and rotation speed measuring instrument is electrically connected with the torque and rotation speed sensor and is used for displaying signals output by the torque and rotation speed sensor. Through adjusting the scale on the micrometer screw knob of the XY axis precision fine adjustment platform, the degree of misalignment of the rotor is quantized and precisely controlled, the torque and rotation speed measuring instrument can detect the running state of the motor, and the influence of misalignment faults of the rotor on the performance of the motor is analyzed. The device is low in cost and provides reliable basis for fault diagnosis of the rotating machinery in actual working conditions.
Description
Technical Field
The utility model belongs to the technical field of failure diagnosis, concretely relates to novel rotating machinery failure diagnosis device.
Background
Mechanical equipment such as a motor, a compressor, a water pump, a steam turbine, and a ventilator, which perform their main functions by a rotational motion, is generally called a rotary machine. The motor is widely applied to various fields of automobile electrical equipment, aerospace, industrial and agricultural production, daily life and the like. The permanent magnet synchronous motor has the advantages of simple structure, small volume, good reliability, high efficiency and the like, and is widely applied to various fields. However, the operation environment of the motor is complex, such as the ambient temperature, vibration, etc., and the motor itself may have inter-turn short circuit, inter-phase short circuit, etc., if these faults cannot be diagnosed in time, the faults may be further enlarged, resulting in permanent fault of the motor, thereby causing the breakdown of the whole system. Therefore, stable and reliable operation of the motor is particularly important, and real-time operation conditions of the motor must be known all the time. And when abnormality occurs in the operation process, the reason needs to be analyzed in time to diagnose the fault.
In a rotary machine, one of the cases where the failure rate is high is misalignment. If the system which is not centered runs for a long time, the damage is extremely large, the shaft coupling can deviate, the bearing can not work normally, the oil film is unstable or the shaft deforms, and the like, so that the system has high damage. The existing fault diagnosis method for the rotary machine is usually designed on the premise of being capable of manufacturing the misalignment fault of the rotor on the basis of theories of misalignment fault diagnosis and the like of the rotor. However, in actual conditions, due to the influence of factors such as actual conditions, space, structure and the like, the misalignment degree of the rotor cannot be accurately measured, and other faults are also included in the misalignment degree, so that the fault identification is more difficult. In addition, the more complex a rotary machine is, the more difficult it is to actually measure and diagnose.
Disclosure of Invention
The utility model provides a novel rotating machinery fault diagnosis device has solved the technical problem that can't be accurate to come the diagnostic motor performance through the misalignment degree of rotor.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a novel rotary machine fault diagnosis device comprises an optical platform, wherein an XY-axis precise fine adjustment platform, a torque and rotation speed sensor and a round bar are sequentially arranged on the optical platform along the same linear path; a motor is fixedly connected to the XY-axis precise fine adjustment platform, an output shaft of the motor is connected with one side shaft of the torque and rotation speed sensor through a first coupler, and the other side shaft of the torque and rotation speed sensor is connected with the end part of the round rod through a second coupler; the torque and rotation speed sensor is electrically connected with the torque and rotation speed measuring instrument, and the torque and rotation speed measuring instrument is used for displaying signals output by the torque and rotation speed sensor.
Furthermore, a group of bearing fixing bases are arranged on the optical platform, round holes are formed in the bearing fixing bases, the round holes are connected with the bearings in an interference fit mode, and the round rods are connected with the bearings.
Further, a disc load is arranged on the round rod, and the disc load is located between the bearings.
Furthermore, a plurality of orifices are arranged on the disc load at equal intervals along the circumference. The orifice can be used for hanging a heavy object, and the effect of conveniently simulating an eccentric state is achieved.
Further, the XY-axis precise fine adjustment platform is fixedly connected with the optical platform through screws.
Further, the torque and rotation speed sensor is connected with the optical platform through a sensor base, and the sensor base is fixedly connected with the optical platform through a screw.
Further, the motor is connected with the XY-axis precise fine adjustment platform through a motor fixing base.
Further, the motor fixing base comprises a transverse plate and a vertical plate which are vertically connected, the transverse plate is fixedly connected with the XY-axis precise fine adjustment platform through screws, and the vertical plate is connected with the motor through screws.
The utility model discloses the beneficial effect who reaches: through adjusting the micrometer caliper knob in the XY axle precision fine setting platform, the degree that the rotor is not centering can accurate adjustment for horizontal migration about motor and the first half of XY axle precision fine setting platform carry out together, thereby cause the rotor to not center the trouble. When the motor starts to rotate, the torque and rotation speed measuring instrument connected with the torque and rotation speed sensor can play a role in detecting the running state of the motor and analyze the influence of the misalignment fault of the rotor on the performance of the motor. The utility model discloses not only can the degree of the misalignment of accurate adjustment rotor, can also analyze under the condition of the not centering difference degree of rotor, the influence of trouble to the motor performance. The device has low cost, provides reliable basis for fault diagnosis of the rotating machinery in actual working conditions, and has wide and profound significance for ensuring normal operation and safe operation of equipment, reducing production cost and improving production rate.
Drawings
Fig. 1 is a structural diagram of the present invention.
In the figure: 1-an optical bench; 2, a motor; 3, fixing the base by the motor; 4-XY axis precision fine tuning platform; 5-a first coupling; 6-torque rotational speed sensor; 7-a second coupling; 8-disc load; 9-round bar; 10-bearing fixing machine base; 11-a bearing; 12-a sensor mount; 13-Torque and speed measuring instrument.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the novel rotary machine fault diagnosis device comprises a series of components such as an optical platform 1, wherein an XY axis precision fine tuning platform 4, a torque and rotation speed sensor 6 and a round bar 9 are sequentially arranged on the optical platform 1 along the same linear path. The XY-axis precise fine-tuning platform 4 is fixedly connected with a motor 2, an output shaft of the motor 2 is connected with one side shaft of a torque and rotation speed sensor 6 through a first coupler 5, and the other side shaft of the torque and rotation speed sensor 6 is connected with the end part of a round rod 9 through a second coupler 7; the torque and rotation speed sensor 6 is electrically connected with a torque and rotation speed measuring instrument 13, and the torque and rotation speed measuring instrument 13 is used for displaying signals output by the torque and rotation speed sensor 6. The misalignment degree of the rotor can be accurately adjusted by adjusting the screw micrometer knob of the XY-axis precise fine adjustment platform 4 to adjust the misalignment degree of the rotor; when the motor 2 starts rotating, the torque rotation speed measuring instrument 13 can detect the motor operation state.
A group of bearing fixing bases 10 are arranged on the optical platform 1, round holes are formed in the bearing fixing bases 10 and are connected with the bearings 11 in an interference fit mode, and round rods 9 are connected with the bearings 11. The round rod 9 is provided with a disc load 8, and the disc load 8 is positioned between two bearings 11. A plurality of orifices are formed in the disc load 8 at equal intervals along the circumference, and the orifices can be used for adding and hanging heavy objects, so that the effect of conveniently simulating the eccentric state is achieved. In this embodiment, the round bar 9 and the disc load 8 are made of stainless steel material.
The XY-axis precise fine adjustment platform 4 is fixedly connected with the optical platform 1 through screws. The torque and rotation speed sensor 6 is connected with the optical platform 1 through a sensor base 12, and the sensor base 12 is fixedly connected with the optical platform 1 through screws.
The motor 2 is connected with the XY-axis precise fine tuning platform 4 through a motor fixing base 3. In this embodiment, motor fixing base 3 includes diaphragm and the riser of perpendicular connection, and the diaphragm passes through screw and 4 fixed connection of XY axle precision fine setting platform, and the riser passes through the screw to be connected with motor 2.
In the actual use process, firstly, the micrometer caliper knob in the XY axis fine tuning platform 4 is adjusted to make the output shaft (i.e. the rotor) of the motor 2 and the rear part of the device in a completely centered position, in this embodiment, the motor 2 is a permanent magnet synchronous motor. When the permanent magnet synchronous motor drives to rotate, the whole device enters a normal operation state. And then, adjusting a knob of the micrometer screw to enable the rotor to be in a fault state of misalignment, and at the moment, horizontally moving the motor fixing base 3 and the upper half part of the XY-axis precise fine adjustment platform 4 left and right together. And the degree of misalignment of the rotor can be quantified by adjusting the scales on the knob of the micrometer caliper, so that the degree of misalignment of the rotor can be accurately controlled. When the rotor is in the misalignment state, the torque and rotation speed measuring instrument 13 can display the running state of the whole device in real time, and further analyze the influence of the misalignment fault of the rotor on the performance of the motor.
The utility model discloses simulate and the analysis through realizable experimental mode with the trouble of rotor misalignment among the operating condition, can quantify the degree of rotor misalignment above all, provide reliable foundation for operating condition. The device has low cost, and has wide and profound significance for ensuring the normal operation and safe operation of equipment, reducing the production cost and improving the productivity.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (8)
1. A novel rotary machine fault diagnosis device comprises an optical platform and is characterized in that an XY-axis precise fine adjustment platform, a torque and rotation speed sensor and a round rod are sequentially arranged on the optical platform along the same linear path;
a motor is fixedly connected to the XY-axis precise fine adjustment platform, an output shaft of the motor is connected with one side shaft of the torque and rotation speed sensor through a first coupler, and the other side shaft of the torque and rotation speed sensor is connected with the end part of the round rod through a second coupler;
the torque and rotation speed sensor is electrically connected with the torque and rotation speed measuring instrument, and the torque and rotation speed measuring instrument is used for displaying signals output by the torque and rotation speed sensor.
2. The novel rotating machine fault diagnosis device according to claim 1, wherein a set of bearing fixing bases are arranged on the optical platform, round holes are formed in the bearing fixing bases, the round holes are connected with bearings in an interference fit mode, and the round rods are connected with the bearings.
3. The novel rotary machine fault diagnosis device according to claim 2, characterized in that a disc load is arranged on the round bar, and the disc load is located between the bearings.
4. The rotary machine fault diagnosis device of claim 3, wherein the disc load has a plurality of holes arranged at equal intervals along the circumference.
5. The novel rotary machine fault diagnosis device of claim 1, wherein the XY axis fine tuning platform is fixedly connected with the optical platform through screws.
6. The novel rotating machine fault diagnosis device according to claim 1, wherein the torque and rotation speed sensor is connected with the optical platform through a sensor base, and the sensor base is fixedly connected with the optical platform through a screw.
7. The novel rotary machine fault diagnosis device according to claim 1, wherein the motor is connected with the XY-axis fine tuning platform through a motor fixing base.
8. The novel rotary machine fault diagnosis device of claim 7, wherein the motor fixing base comprises a transverse plate and a vertical plate which are vertically connected, the transverse plate is fixedly connected with the XY-axis fine tuning platform through screws, and the vertical plate is connected with the motor through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021426781.8U CN212905310U (en) | 2020-07-20 | 2020-07-20 | Novel rotating machinery fault diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021426781.8U CN212905310U (en) | 2020-07-20 | 2020-07-20 | Novel rotating machinery fault diagnosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212905310U true CN212905310U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021426781.8U Active CN212905310U (en) | 2020-07-20 | 2020-07-20 | Novel rotating machinery fault diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212905310U (en) |
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2020
- 2020-07-20 CN CN202021426781.8U patent/CN212905310U/en active Active
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