CN111766065A - Oil film whirl and oil film vibration fault signal detection device and method - Google Patents
Oil film whirl and oil film vibration fault signal detection device and method Download PDFInfo
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- CN111766065A CN111766065A CN202010832912.0A CN202010832912A CN111766065A CN 111766065 A CN111766065 A CN 111766065A CN 202010832912 A CN202010832912 A CN 202010832912A CN 111766065 A CN111766065 A CN 111766065A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 title claims description 23
- 239000000446 fuel Substances 0.000 claims abstract description 14
- 239000003921 oil Substances 0.000 claims description 210
- 239000010687 lubricating oil Substances 0.000 claims description 28
- 238000005259 measurement Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 7
- 238000011160 research Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
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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
- G01M13/04—Bearings
-
- 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
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a device and a method for detecting oil film whirl and oil film vibration fault signals, wherein the device comprises: the oil tank is connected with the oil distributing valve and the oil receiving box; an output shaft of the servo motor is coaxially connected with one end of a rotating shaft through a coupler, the rotating shaft penetrates through a sliding bearing seat, and the sliding bearing seat is connected with the rotating shaft through a bearing sleeve; the oil tank is linked together through first oil pipe with the branch fuel tap, and the branch fuel tap is linked together through the oiling mouth on second oil pipe and the sliding bearing seat, and the oiling mouth is linked together with sliding bearing seat's inside, connects the oil box setting on sliding bearing seat, connects in the oil-out of oil box bottom passes through first oil return pipe tieback to the oil tank, still is provided with the second between branch fuel tap and the oil tank and returns oil pipe. The device overcomes the problems that in the prior art, the phenomenon that oil film whirl cannot be accurately captured in the working process of the sliding bearing is generated, and the actually-working oil film whirl usually acquires inaccurate data and is difficult to acquire.
Description
Technical Field
The invention relates to the technical field of sliding bearing detection, in particular to a device and a method for detecting oil film whirl and oil film vibration fault signals.
Background
The sliding bearing is widely used due to the advantages of simple structure, convenient manufacture, long service life, stable operation and the like, but the problems of oil film whirl, oil film oscillation and the like caused by power unbalance are also generated. How to generate oil whirl and oil oscillation and how to avoid them has been the direction of intense research by a large number of researchers.
In the prior art, the phenomenon that oil film whirl cannot be accurately captured in the working process of the sliding bearing is generated, and data which are usually acquired by the oil film whirl in actual working are not accurate enough and are difficult to acquire.
Therefore, the invention provides a device and a method for detecting oil film whirl and oil film vibration fault signals, which can truly simulate the experimental effect in the using process, provide convenience for the acquisition of research data, and accurately capture the phenomenon of oil film whirl so as to accurately acquire the oil film whirl data and provide data support for the research of the problems of follow-up oil film whirl, oil film vibration and the like.
Disclosure of Invention
Aiming at the technical problems, the invention aims to solve the problems that in the prior art, the phenomenon that the oil film whirl cannot be accurately captured in the working process of the sliding bearing is generated, and the actually-working oil film whirl is often inaccurate in data acquisition and difficult to acquire, so that an oil film whirl and oil film vibration fault signal detection device which can truly simulate an experimental effect in the using process is provided, convenience is brought to data acquisition research, the phenomenon of the oil film whirl can be accurately captured, the oil film whirl data can be accurately acquired, and data support is provided for the follow-up oil film whirl, oil film vibration and other problems.
In order to achieve the above object, the present invention provides an oil whirl and oil vibration fault signal detection apparatus, comprising: the oil tank is connected with the oil distributing valve and the oil receiving box;
an output shaft of the servo motor is coaxially connected with one end of the rotating shaft through a coupler, the rotating shaft penetrates through the sliding bearing seat, and the sliding bearing seat is connected with the rotating shaft through a bearing sleeve; the oil tank with divide the fuel tap to be linked together through first oil pipe, divide the fuel tap pass through second oil pipe with oiling mouth on the sliding bearing seat is linked together, the oiling mouth with the inside of sliding bearing seat is linked together, it is in to connect the oil box setting on the sliding bearing seat, it is right lubricating oil that spills on the sliding bearing seat collects, the oil-out that connects the oil box bottom connects back to through first time oil pipe in the oil tank, divide the fuel tap with still be provided with the second between the oil tank and return oil pipe.
Preferably, the apparatus further comprises: the rotor and the bearing seat for accompanying measurement;
the other end of the rotating shaft, which is far away from the servo motor, is arranged in the bearing pedestal for accompanying measurement through a bearing fixing ring;
the middle part of the rotating shaft between the accompanied measurement bearing seat and the sliding bearing seat is provided with the rotor.
Preferably, the apparatus further comprises: a base;
the servo motor, the sliding bearing seat and the oil distribution valve are respectively arranged on the upper surface of the base, and the oil tank is arranged on the lower surface of the base.
Preferably, the lower surface of the base is further provided with a plurality of supporting feet.
Preferably, the bottom end of each supporting foot is provided with a sucker.
Preferably, the lower surface of the base is further provided with an oil pump, and the oil pump is connected with an oil outlet in the oil tank.
The invention also provides a method for detecting oil film whirl and oil film vibration fault signals, which comprises the following steps:
pumping the lubricating oil in the oil tank to the oil distributing valve by using an oil pump;
lubricating oil is injected into the sliding bearing seat from the oil injection port through the oil distribution valve according to a preset distribution amount;
after the oil pump continuously works for a preset time, starting the servo motor to drive the rotating shaft to rotate;
adjusting the rotating speed of the servo motor to enable the rotor to run stably;
and detecting fault signals of oil film whirl and oil film vibration.
Preferably, the detecting the fault signals of oil whirl and oil vibration includes:
and detecting the displacement of the sliding bearing seat by using a displacement sensor.
Preferably, the method further comprises:
and collecting the lubricating oil overflowing from the sliding bearing seat by using an oil receiving box.
According to the technical scheme, the oil film whirl and oil film vibration fault signal detection device provided by the invention has the beneficial effects that: the experimental effect can be truly simulated, convenience is provided for the acquisition of research data, and the phenomenon of oil film whirl can be accurately captured, so that the data of the oil film whirl can be accurately acquired, and data support is provided for the research of the problems of follow-up oil film whirl, oil film oscillation and the like.
Additional features and advantages of the invention will be set forth in the detailed description which follows; and the parts not involved in the invention are the same as or can be realized by the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of an oil whirl and oil vibration fault signal detection device provided in a preferred embodiment of the present invention;
FIG. 2 is a side view of an oil whirl and oil vibration fault signal detection device provided in a preferred embodiment of the present invention;
fig. 3 is a plan view of an oil whirl and oil vibration fault signal detecting device provided in a preferred embodiment of the present invention;
FIG. 4 is a schematic structural view of a sliding bearing housing provided in a preferred embodiment of the present invention;
fig. 5 is a flow chart providing a method of oil whirl and oil vibration fault signal detection in a preferred embodiment of the present invention.
Description of the reference numerals
1 servo motor 2 shaft coupling
3 rotating shaft 4 sliding bearing seat
5 bearing sleeve 6 oil receiving box
7 bearing seat is accompanied to survey by rotor 8
9 bearing fixing ring 10 oil distributing valve
11 base 12 suction cup
13 oil pump 14 oil tank
15 oil outlet of oil filling port 16
17 support foot
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "upper, lower, inner, outer" and the like included in the terms merely represent the orientation of the terms in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms.
As shown in fig. 1 to 4, the present invention provides an oil whirl and oil vibration fault signal detection apparatus, the apparatus comprising: the oil distribution device comprises a servo motor 1, a rotating shaft 3, a sliding bearing seat 4, an oil tank 14, an oil distribution valve 10 and an oil receiving box 6;
an output shaft of the servo motor 1 is coaxially connected with one end of the rotating shaft 3 through a coupler 2, the rotating shaft 3 penetrates through the sliding bearing seat 4, and the sliding bearing seat 4 is connected with the rotating shaft 3 through a bearing sleeve 5; the oil tank 14 with divide the fuel tap 10 to be linked together through first oil pipe, divide the fuel tap 10 through second oil pipe with oiling mouth 15 on the sliding bearing seat 4 is linked together, oiling mouth 15 with the inside of sliding bearing seat 4 is linked together, it is in to connect oil box 6 sets up on the sliding bearing seat 4, it is right lubricating oil that leaks on the sliding bearing seat 4 is collected, connect oil-out 16 of oil box 6 bottom to connect back through first oil return pipe in the oil tank 14, divide the fuel tap 10 with still be provided with the second between the oil tank 14 and return oil pipe.
In a preferred embodiment of the present invention, the apparatus further comprises: a rotor 7 and a bearing seat 8 for accompanying measurement; the other end of the rotating shaft 3, which is far away from the servo motor 1, is arranged in the bearing pedestal 8 for accompanying measurement through a bearing fixing ring 9; the rotor 7 is arranged in the middle of the rotating shaft 3 between the accompanied measurement bearing seat 8 and the sliding bearing seat 4.
In the above scheme, the bearing fixing ring 9 plays a limiting role in the rotating shaft 3, so that the end part of the rotating shaft 3 cannot fall off from the accompanied measurement bearing seat 8 in the rotating process, and the bearing fixing ring 9 rotates along with the rotation of the rotating shaft 3. The bearing pedestal 8 for accompanying measurement can improve the stability of the detection device.
In a preferred embodiment of the present invention, the apparatus further comprises: a base 11; the servo motor 1, the sliding bearing seat 4 and the oil distribution valve 10 are respectively arranged on the upper surface of the base 11, and the oil tank 14 is arranged on the lower surface of the base 11.
In a preferred embodiment of the present invention, the lower surface of the base 11 is further provided with a plurality of supporting legs 17; the bottom end of each supporting foot 17 is provided with a sucking disc 12.
In the above solution, the supporting feet 17 can make the empty space below the base 11 accommodate some workpieces, such as oil tanks and the like; and set up and can carry out certain protection to it on the lower surface, another convenience sucking disc 12 can fix the device on workstation or subaerial to improve the stability of device, prevent to take place to rock the problem that even remove in the course of the work.
In a preferred embodiment of the present invention, the lower surface of the base 11 is further provided with an oil pump 13, and the oil pump 13 is connected with an oil outlet on an oil tank 14.
In the scheme, the working principle of the oil film whirl and oil film vibration fault signal detection device provided by the invention is as follows: firstly, the oil pump 13 starts to work to pump out the lubricating oil in the oil tank 14, then the lubricating oil is output to the oil distribution valve 10, the oil distribution valve 10 can freely distribute the oil quantity, the oil distribution valve 10 outputs the lubricating oil to the sliding bearing seat 4, and the oil filling port 15 above the sliding bearing seat 4 ensures that the lubricating oil can smoothly flow into the sliding bearing, so that the sliding smooth work is ensured. Oil tank 14 is inserted again to the one end of branch fuel tap 10, guarantees to make lubricating oil can not connect oil box 6 in the middle of overflowing again when the lubricating oil velocity of flow is too fast, connects the oil-out and the oil of oil box 6, 14 are connected for during lubricating oil can get back to oil tank 14 once more when flowing down from the top, guaranteed the work that oil supply unit can last, the empty circumstances of taking out of oil pump can not appear. About 30 seconds when a period of time after the oil pump work, can adjust according to the demand of difference, servo motor 1 begins to operate, drives pivot 3 through shaft coupling 2 and rotates, begins to carry out rotary motion when pivot 3, because the change of rotational speed, thereby the amplitude that rotor 7 rotation brought is also more obvious, along with the rising of rotational speed, the rotor can become even running after reaching certain rotational speed. At this time, the lubricating oil in the sliding bearing seat has the phenomena of oil film whirl and oil film vibration. The device ensures that the oil film whirling and oil film vibration phenomenon is really simulated through the connection operation of the devices, and provides powerful data support for researching the oil film whirling and the oil film vibration in the field test and the model experiment of the rotating machinery.
As shown in fig. 5, the present invention further provides a method for detecting oil whirl and oil vibration fault signals, wherein the method comprises:
pumping the lubricating oil in the oil tank 14 to the oil distributing valve 10 by using an oil pump 13;
lubricating oil is injected into the sliding bearing seat 4 from the oil injection port 15 through the oil distribution valve 10 according to a preset distribution amount;
after the oil pump 13 continuously works for a preset time, starting the servo motor 1 to drive the rotating shaft 3 to rotate;
the rotating speed of the servo motor 1 is adjusted to enable the rotor 7 to run stably;
and detecting fault signals of oil film whirl and oil film vibration.
In a preferred embodiment of the present invention, the detecting the fault signals of oil whirl and oil vibration includes:
the displacement of the sliding bearing block 4 is detected by a displacement sensor.
In a preferred embodiment of the present invention, the method further comprises:
and collecting the lubricating oil overflowing from the sliding bearing seat 4 by using an oil receiving box 6.
According to the scheme, the working principle of the oil film whirl and oil film vibration fault signal detection method provided by the invention is as follows: firstly, the oil pump 13 starts to work to pump out the lubricating oil in the oil tank 14, then the lubricating oil is output to the oil distribution valve 10, the oil distribution valve 10 can freely distribute the oil quantity, the oil distribution valve 10 outputs the lubricating oil to the sliding bearing seat 4, and the oil filling port 15 above the sliding bearing seat 4 ensures that the lubricating oil can smoothly flow into the sliding bearing, so that the sliding smooth work is ensured. Oil tank 14 is inserted again to the one end of branch fuel tap 10, guarantees to make lubricating oil can not connect oil box 6 in the middle of overflowing again when the lubricating oil velocity of flow is too fast, connects the oil-out and the oil of oil box 6, 14 are connected for during lubricating oil can get back to oil tank 14 once more when flowing down from the top, guaranteed the work that oil supply unit can last, the empty circumstances of taking out of oil pump can not appear. About 30 seconds when a period of time after the oil pump work, can adjust according to the demand of difference, servo motor 1 begins to operate, drives pivot 3 through shaft coupling 2 and rotates, begins to carry out rotary motion when pivot 3, because the change of rotational speed, thereby the amplitude that rotor 7 rotation brought is also more obvious, along with the rising of rotational speed, the rotor can become even running after reaching certain rotational speed. At this time, the lubricating oil in the sliding bearing seat has the phenomena of oil film whirl and oil film vibration. The device ensures that the oil film whirling and oil film vibration phenomenon is really simulated through the connection operation of the devices, and provides powerful data support for researching the oil film whirling and the oil film vibration in the field test and the model experiment of the rotating machinery.
In summary, the oil film whirl and oil film vibration fault signal detection device and method provided by the invention overcome the problems that in the prior art, the oil film whirl cannot be accurately captured in the sliding bearing working process, and the actually working oil film whirl usually acquires inaccurate data and is difficult to acquire.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. An oil whirl and oil vibration fault signal detection device, the device comprising: the oil distribution device comprises a servo motor (1), a rotating shaft (3), a sliding bearing seat (4), an oil tank (14), an oil distribution valve (10) and an oil receiving box (6);
an output shaft of the servo motor (1) is coaxially connected with one end of the rotating shaft (3) through a coupler (2), the rotating shaft (3) penetrates through the sliding bearing seat (4), and the sliding bearing seat (4) is connected with the rotating shaft (3) through a bearing sleeve (5); oil tank (14) with divide fuel tap (10) to be linked together through first oil pipe, divide fuel tap (10) through second oil pipe with oiling mouth (15) on sliding bearing seat (4) are linked together, oiling mouth (15) with the inside of sliding bearing seat (4) is linked together, it sets up to connect oil box (6) on sliding bearing seat (4), right the lubricating oil that spills on sliding bearing seat (4) is collected, connect oil-out (16) of oil box (6) bottom connect back to through first oil return pipe in oil tank (14), divide fuel tap (10) with still be provided with the second oil return pipe between oil tank (14).
2. The oil whirl and oil film vibration fault signal detection device of claim 1, further comprising: a rotor (7) and a bearing seat (8) for accompanying measurement;
the other end of the rotating shaft (3), which is far away from the servo motor (1), is arranged in the measurement accompanying bearing seat (8) through a bearing fixing ring (9);
the middle part of the rotating shaft (3) between the accompanied measuring bearing seat (8) and the sliding bearing seat (4) is provided with the rotor (7).
3. The oil whirl and oil film vibration fault signal detection device of claim 1, further comprising: a base (11);
the servo motor (1), the sliding bearing seat (4) and the oil distribution valve (10) are arranged on the upper surface of the base (11) respectively, and the oil tank (14) is arranged on the lower surface of the base (11).
4. The oil whirl and oil vibration fault signal detection device according to claim 5, wherein a plurality of support legs (17) are further provided to a lower surface of the base (11).
5. The oil whirl and oil vibration fault signal detection device according to claim 4, wherein a suction cup (12) is provided at a bottom end of each of the support legs (17).
6. The oil whirl and oil vibration fault signal detection device according to claim 4, wherein an oil pump (13) is further arranged on the lower surface of the base (11), and the oil pump (13) is connected with an oil outlet on an oil tank (14).
7. A method of oil whirl and oil film vibration fault signal detection as claimed in any one of claims 1 to 6, wherein said method comprises:
pumping lubricating oil in an oil tank (14) into the oil distribution valve (10) by using an oil pump (13);
lubricating oil is injected into the sliding bearing seat (4) from the oil injection port (15) through the oil distribution valve (10) according to a preset distribution amount;
after the oil pump (13) continuously works for a preset time, the servo motor (1) is started to drive the rotating shaft (3) to rotate;
adjusting the rotation speed of the servo motor (1) to enable the rotor (7) to run stably;
and detecting fault signals of oil film whirl and oil film vibration.
8. The oil whirl and oil vibration fault signal detection device according to claim 7, wherein the detecting of the fault signal of the oil whirl and oil vibration comprises:
and detecting the displacement of the sliding bearing seat (4) by using a displacement sensor.
9. The oil whirl and oil film vibration fault signal detection device of claim 7, wherein the method further comprises:
and collecting the lubricating oil overflowing from the sliding bearing seat (4) by using an oil receiving box (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010832912.0A CN111766065A (en) | 2020-08-18 | 2020-08-18 | Oil film whirl and oil film vibration fault signal detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010832912.0A CN111766065A (en) | 2020-08-18 | 2020-08-18 | Oil film whirl and oil film vibration fault signal detection device and method |
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| CN111766065A true CN111766065A (en) | 2020-10-13 |
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| CN202010832912.0A Pending CN111766065A (en) | 2020-08-18 | 2020-08-18 | Oil film whirl and oil film vibration fault signal detection device and method |
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2020
- 2020-08-18 CN CN202010832912.0A patent/CN111766065A/en active Pending
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