CN111238958A - Rotating machinery bending fault detection device - Google Patents
Rotating machinery bending fault detection device Download PDFInfo
- Publication number
- CN111238958A CN111238958A CN202010074331.5A CN202010074331A CN111238958A CN 111238958 A CN111238958 A CN 111238958A CN 202010074331 A CN202010074331 A CN 202010074331A CN 111238958 A CN111238958 A CN 111238958A
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- rotary machine
- pressure sensor
- detection device
- rotor
- rotating machinery
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000005452 bending Methods 0.000 title claims abstract description 11
- 238000010030 laminating Methods 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a rotary machine bending fault detection device which comprises a supporting plate, wherein a threaded pipe is arranged on the surface of one side of the supporting plate, a threaded rod used for being fixedly connected with a part opposite to the end part of a rotor of a rotary machine is arranged in the threaded pipe, a pressure sensor used for sensing pressure change generated by rotation of the rotary machine is arranged on the surface of the other side of the supporting plate, the bottom of the pressure sensor is also connected with an end plate through a spring, and a contact ball used for being attached to the end part of the rotor of the rotary machine is also arranged on the end plate. Compared with the prior art, the method has the advantages of diagnosing and monitoring the bending degree of the rotor in a targeted manner, improving the fault diagnosis accuracy of the rotary machine and the like.
Description
Technical Field
The invention relates to the technical field of fault diagnosis equipment, in particular to a rotary machine bending fault detection device.
Background
A rotary machine is a machine that performs a main function by a rotational motion of a rotor, and it is necessary to have a most basic structure of parts such as a rotor and a bearing. A failure of a rotating machine is a functional failure of the machine, i.e. its dynamic performance deteriorates, not complying with the technical requirements. For example, the machine is running unstably or the rotor is unbalanced.
The method for diagnosing the rotor imbalance fault of the rotary machine is to judge the rotor imbalance of the rotary machine, and means that the rotor is influenced by various factors in material quality, processing, assembly and operation, a certain amount of eccentricity exists between a mass center and a rotating center line, or the rotor is bent. Particularly, the bending degree of the rotor is not accurate enough in the conventional rotary machine fault diagnosis device, so that the diagnosis accuracy is not high enough.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a rotary machine bending fault detection device which is specially arranged at a rotor of a rotary machine, can be attached to the end face of the rotor when in use, diagnoses and monitors the bending degree of the rotor in a targeted manner and improves the fault diagnosis accuracy of the rotary machine.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a crooked fault detection device of rotating machinery, the device includes the backup pad, a side of backup pad is equipped with the screwed pipe on the surface, be equipped with in the screwed pipe be used for with the opposite spare part looks fixed connection's of rotating machinery rotor tip threaded rod, the opposite side of backup pad is equipped with the pressure sensor who is used for responding to the rotating machinery and rotates the pressure variation that produces on the surface, pressure sensor's bottom still is connected with the end plate through the spring, still be equipped with on the end plate and be used for the ball that touches with the laminating of rotating machinery's rotor tip mutually.
Further, the pressure sensor is connected with a diagnosis terminal through a data line.
Further, the supporting plate is connected with the threaded pipe in a welding mode.
Further, the pressure sensor is disposed at a central position on the other side surface of the support plate in a direction perpendicular to the other side surface of the support plate.
Further, the spring is disposed at a position of the bottom surface of the pressure sensor in a direction perpendicular to the bottom surface of the pressure sensor.
Further, the contact ball is integrally formed at the center of the bottom of the end plate.
Furthermore, the structure of the supporting plate is flat.
Further, the threaded rod is connected with the threaded pipe through threads arranged on the inner wall of the threaded pipe.
Compared with the prior art, the invention has the following advantages:
(1) when the device is used, the threaded pipe can be rotated on the threaded rod, the supporting plate is moved, the contact ball is forced to be attached to the end face of the rotor, the spring is bent to apply resilience to the pressure sensor, the rotating machine is started to drive the rotor to rotate, the pressure sensor senses the pressure change of the spring and sends the pressure value to the diagnosis terminal through the data line, and the diagnosis terminal distinguishes whether the change of the resilience of the spring is too large, so that whether the degree of curvature of the rotor exceeds the standard or not is judged, and the diagnosis accuracy is high.
(2) The device can fix the threaded rod on a part opposite to the end part of the rotor of the rotating machine through welding during installation. The contact ball is aligned to the non-circle center part of the end part of the rotor, the contact ball can be attached to the end face of the rotor when in use, the bending degree of the rotor is diagnosed and monitored in a targeted manner, the fault diagnosis accuracy of the rotary machine is improved, and the detection operation is simple and convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
in the figure, 1 is a pressure sensor, 2 is a support plate, 3 is a spring, 4 is a contact ball, 5 is an end plate, 6 is a threaded pipe, 7 is a threaded rod, and 8 is a data line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
Examples
With reference to fig. 1 and 2, the rotating machinery fault detector comprises a flat support plate 2, a tubular threaded pipe 6 is vertically arranged at the center of the top of the support plate 2, a threaded rod 7 in threaded fit with each other is arranged in the threaded pipe 6, a pressure sensor 1 is vertically arranged at the center of the bottom of the support plate 2, a spring 3 is vertically connected to a sensing component at the bottom of the pressure sensor 1, a flat end plate 5 is vertically arranged at the bottom of the spring 3, a hemispherical contact ball 4 is vertically arranged at the center of the bottom surface of the end plate 5, the threaded pipe 6, the spring 3 and the contact ball 4 are coaxial, and a data line 8 of the pressure sensor 1 is connected with a diagnosis terminal.
The supporting plate 2, the threaded pipe 6 and the threaded rod 7 are all made of stainless steel, and the supporting plate 2 and the threaded pipe 6 are connected through welding.
The contact ball 4 and the end plate 5 are both made of stainless steel, and the contact ball 4 and the end plate 5 are of an integral structure.
The threaded rod 7 can be fixed by welding to the part of the rotating machine opposite the rotor end during installation. The contact ball 4 is aligned with the non-circle center part of the end part of the rotor. Can rotate threaded pipe 6 on threaded rod 7 during the use, remove backup pad 2, force the terminal surface laminating of ball 4 and rotor of touching, let spring 3 crooked exert the bounce to pressure sensor 1, start rotating machinery and drive the rotor and rotate, pressure sensor 1 senses the pressure variation of spring 3, and pressure sensor 1 sends pressure numerical value to diagnosis terminal through data line 8, and diagnosis terminal differentiates whether too big the bounce change of spring 3, thereby judges whether the crookedness of this rotor exceeds standard. The rotary machine fault detector can improve the fault diagnosis accuracy of the rotary machine.
The practical use process of the invention is as follows:
the rotating machine failure detector can be mounted by fixing the threaded rod to a component opposite to the rotor end of the rotating machine by welding. The contact ball is aligned to the non-circle center part of the end part of the rotor.
Can rotate the screwed pipe on the threaded rod during the use, remove the backup pad, force the terminal surface laminating of ball and rotor of touching, let the spring crooked exert bounce to pressure sensor, start rotating machinery and drive the rotor and rotate, pressure sensor senses the pressure variation of spring to send pressure numerical value to diagnosis terminal through the data line, diagnosis terminal differentiates whether too big spring bounce changes, thereby judge whether the crookedness of this rotor exceeds standard.
The rotary machine fault detector is specially installed at the position of a rotor of a rotary machine, can be attached to the end face of the rotor during use, diagnoses and monitors the bending degree of the rotor in a targeted manner, and improves the fault diagnosis accuracy of the rotary machine.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a crooked fault detection device of rotating machinery, its characterized in that, the device includes backup pad (2), be equipped with screwed pipe (6) on the side surface of backup pad (2), be equipped with in screwed pipe (6) and be used for with spare part looks fixed connection's that the rotor tip of rotating machinery threaded rod (7), the opposite side of backup pad (2) is equipped with on the surface and is used for responding to pressure sensor (1) that the rotating machinery rotated the pressure variation that produces, the bottom of pressure sensor (1) still is connected with end plate (5) through spring (3), still be equipped with on end plate (5) and be used for contacting ball (4) with the rotor tip of rotating machinery laminating mutually.
2. A rotary machine bend failure detection device according to claim 1, characterized in that the pressure sensor (1) is connected to a diagnostic terminal via a data line (8).
3. A rotary machine bend failure detection device according to claim 1, wherein the support plate (2) is welded to the threaded pipe (6).
4. A rotary machine bend failure detection apparatus as claimed in claim 1, wherein said pressure sensor (1) is provided at a central position on the other side surface of said support plate (2) in a direction perpendicular to the other side surface of said support plate (2).
5. A rotary machine bending failure detecting device according to claim 1, wherein said spring (3) is provided at a position of a bottom surface of said pressure sensor (1) in a direction perpendicular to the bottom surface of said pressure sensor (1).
6. A rotary machine bend failure detector arrangement according to claim 1, characterised in that said contact ball (4) is integrally formed in the bottom centre of said end plate (5).
7. A rotary machine bend failure detection device according to claim 1, wherein the support plate (2) is flat.
8. A rotary machine bend failure detection device according to claim 1, wherein the threaded rod (7) is connected to the threaded pipe (6) by a thread provided on an inner wall of the threaded pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074331.5A CN111238958A (en) | 2020-01-22 | 2020-01-22 | Rotating machinery bending fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074331.5A CN111238958A (en) | 2020-01-22 | 2020-01-22 | Rotating machinery bending fault detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111238958A true CN111238958A (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010074331.5A Pending CN111238958A (en) | 2020-01-22 | 2020-01-22 | Rotating machinery bending fault detection device |
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| Country | Link |
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| CN (1) | CN111238958A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1641199A (en) * | 2004-01-16 | 2005-07-20 | 丰田自动车株式会社 | Fault diagnosis device for detection device provided on engine |
| CN102937460A (en) * | 2012-11-06 | 2013-02-20 | 昆山北极光电子科技有限公司 | Fault diagnosis system for rotating machinery |
| CN105928704A (en) * | 2016-06-24 | 2016-09-07 | 西安交通大学 | Rotation device fault diagnosis device combining piezoelectric effect and electrostatic induction |
| CN110132718A (en) * | 2019-04-19 | 2019-08-16 | 同济大学 | Structure residual bearing capacity measuring method and system based on Tunnel Lining Deformation feature |
| CN110441058A (en) * | 2019-08-07 | 2019-11-12 | 东北大学秦皇岛分校 | A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on pressure detecting |
-
2020
- 2020-01-22 CN CN202010074331.5A patent/CN111238958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1641199A (en) * | 2004-01-16 | 2005-07-20 | 丰田自动车株式会社 | Fault diagnosis device for detection device provided on engine |
| CN102937460A (en) * | 2012-11-06 | 2013-02-20 | 昆山北极光电子科技有限公司 | Fault diagnosis system for rotating machinery |
| CN105928704A (en) * | 2016-06-24 | 2016-09-07 | 西安交通大学 | Rotation device fault diagnosis device combining piezoelectric effect and electrostatic induction |
| CN110132718A (en) * | 2019-04-19 | 2019-08-16 | 同济大学 | Structure residual bearing capacity measuring method and system based on Tunnel Lining Deformation feature |
| CN110441058A (en) * | 2019-08-07 | 2019-11-12 | 东北大学秦皇岛分校 | A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on pressure detecting |
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Application publication date: 20200605 |
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