CN112989519A - Selection method for lubricating grease for main bearing of fan, computing equipment and storage medium - Google Patents
Selection method for lubricating grease for main bearing of fan, computing equipment and storage medium Download PDFInfo
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- CN112989519A CN112989519A CN202110357785.8A CN202110357785A CN112989519A CN 112989519 A CN112989519 A CN 112989519A CN 202110357785 A CN202110357785 A CN 202110357785A CN 112989519 A CN112989519 A CN 112989519A
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- rotating speed
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- lubricating grease
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- 239000004519 grease Substances 0.000 title claims abstract description 58
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 44
- 238000010187 selection method Methods 0.000 title claims abstract description 10
- 239000002199 base oil Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/04—Ageing analysis or optimisation against ageing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
Abstract
The invention discloses a selection method, computing equipment and a storage medium for fan main bearing lubricating grease, wherein the selection method comprises the steps of obtaining the inner diameter and the outer diameter of a fan main bearing, the rotating speed range of a fan main shaft and the viscosity of lubricating grease base oil used by the fan main bearing, and counting a bearing temperature interval and bearing temperature duration at each rotating speed in the rotating speed range of the main shaft; selecting a rotating speed and a temperature within the rotating speed range of the main shaft and the temperature range of the bearing, and judging whether the viscosity of the lubricating grease is qualified or not at the current rotating speed and temperature; counting the qualified time of the current rotating speed at different temperatures; obtaining the qualified time of the lubricating grease at different temperatures at all rotating speeds, calculating the qualified proportion by combining the time span of sample collection, and finally judging the selection of the lubricating grease according to the qualified proportion. The invention can solve the problem whether the selection of the grease used in the main bearing of the wind turbine is proper or not.
Description
Technical Field
The invention relates to selection of fan field lubricating grease, in particular to a selection method, computing equipment and storage medium for fan main bearing lubricating grease.
Background
The main bearing of the wind turbine is low-speed and heavy-load, the rotating speed is frequently influenced by the wind speed, the temperature of the main bearing is influenced by regions, seasons and rotating speed, the variation range is large, and the main bearing lubricating grease is difficult to select.
Disclosure of Invention
The invention aims to provide a selection method, calculation equipment and a storage medium for lubricating grease of a main bearing of a fan, and solves the problem that whether the selection of the grease of the main bearing of the wind turbine is proper or not.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method for selecting lubricating grease for a main bearing of a fan is characterized by comprising the following steps:
acquiring the inner diameter and the outer diameter of a fan main bearing, the rotating speed range of a fan main shaft and the viscosity of lubricating grease base oil used by the fan main bearing, and counting a bearing temperature interval and bearing temperature duration at each rotating speed within the rotating speed range of the main shaft;
selecting a rotating speed and a temperature within the rotating speed range of the main shaft and the temperature range of the bearing, and judging whether the viscosity of the lubricating grease is qualified or not at the current rotating speed and temperature;
counting the qualified time of the current rotating speed at different temperatures;
obtaining the qualified time of the lubricating grease at different temperatures at all rotating speeds, calculating the qualified proportion by combining the time span of sample collection, and finally judging the selection of the lubricating grease according to the qualified proportion.
The judging whether the viscosity of the lubricating grease is qualified or not at the current rotating speed and the current temperature comprises the following steps:
calculating the ideal viscosity at a certain rotating speed within the range of the rotating speed of the main shaft;
and counting the temperature of the main bearing of the fan at the rotating speed, calculating the viscosity corresponding to the temperature, comparing the calculated viscosity with the ideal viscosity at the rotating speed, and judging whether the viscosity of the lubricating grease at the current rotating speed and the temperature is qualified or not.
The ideal viscosity at the rotating speed is calculated as follows:
The temperature of the main bearing of the fan at the rotating speed is counted, and the viscosity corresponding to the temperature is calculated as follows:
G＝10^(10^(B1-C1*log10(K1)))-0.6
wherein:
C1＝(log10(log10(G2+0.6))-log10(log10(G3+0.6)))/(log10(K3)-log10(K2))
B1＝log10(log10(G2+0.6))+C1*log10(K2)；
wherein: g is viscosity corresponding to temperature;
K1is the bearing temperature;
G2grease base oil viscosity at 40 ℃;
G3grease base oil viscosity at 100 ℃;
K2at an absolute temperature of 40 ℃, 40 ℃ +273 ═ 313K;
K3absolute temperature 100 ℃, 100 ℃ +273 ═ 373K.
The judging whether the viscosity of the lubricating grease is qualified or not at the current rotating speed and the current temperature comprises the following steps:
if the calculated viscosity G is greater than or equal to the ideal viscosity G1Judging that the viscosity of the lubricating grease is qualified at the rotating speed and the temperature, otherwise, judging that the viscosity of the lubricating grease is unqualified.
The judging the selection of the lubricating grease according to the qualified proportion comprises the following steps:
and if the qualified proportion is larger than the preset value, judging that the lubricating grease is suitable for the wind field.
The qualified proportion is 65-75%.
A computing device, comprising: at least one processor; and at least one memory coupled to the at least one processor and storing instructions for execution by the at least one processor, the instructions when executed by the at least one processor causing the computing device to perform the steps of the method described above.
A computer-readable storage medium, characterized in that a computer program code is stored thereon, which computer program code, when executed, performs the above-mentioned method.
Compared with the prior art, the invention has the following advantages:
the problem that the main bearing of the wind turbine is in failure of grease lubrication is solved, and a basis is provided for grease selection.
Drawings
FIG. 1 is a flow chart of a method for selecting lubricating grease for a main bearing of a fan according to the present invention;
FIG. 2 schematically shows a block diagram of an electronic device suitable for use to implement embodiments of the present disclosure.
Detailed Description
The present invention will now be further described by way of the following detailed description of a preferred embodiment thereof, taken in conjunction with the accompanying drawings.
As shown in fig. 1, a method for selecting lubricating grease for a main bearing of a fan comprises the following steps:
s10, acquiring the inner diameter and the outer diameter of the fan main bearing, the rotating speed range of the fan main shaft and the viscosity of lubricating grease base oil used by the fan main bearing, and counting a bearing temperature interval and bearing temperature duration at each rotating speed within the rotating speed range of the main shaft;
s20, selecting a rotating speed and a temperature within the rotating speed range of the main shaft and the temperature range of the bearing, and judging whether the viscosity of the lubricating grease is qualified or not at the current rotating speed and temperature;
s30, counting the qualified time of the current rotating speed at different temperatures;
and S40, acquiring the qualified time of the lubricating grease at different temperatures at all rotating speeds, calculating a qualified proportion by combining the time span of sample collection, and finally judging the selection of the lubricating grease according to the qualified proportion.
In a specific embodiment, the determining whether the viscosity of the grease at the current rotation speed and temperature is qualified in step S20 includes:
calculating the ideal viscosity at a certain rotating speed within the range of the rotating speed of the main shaft;
and counting the temperature of the main bearing of the fan at the rotating speed, calculating the viscosity corresponding to the temperature, comparing the calculated viscosity with the ideal viscosity at the rotating speed, and judging whether the viscosity of the lubricating grease at the current rotating speed and the temperature is qualified or not.
Further, the ideal viscosity at the rotation speed is calculated as:
The temperature of the main bearing of the fan at the rotating speed is counted, and the viscosity corresponding to the temperature is calculated as follows:
G＝10^(10^(B1-C1*log10(K1)))-0.6
wherein:
C1＝(log10(log10(G2+0.6))-log10(log10(G3+0.6)))/(log10(K3)-log10(K2))
B1＝log10(log10(G2+0.6))+C1*log10(K2)；
wherein: g is viscosity corresponding to temperature;
K1is the bearing temperature;
G2grease base oil viscosity at 40 ℃;
G3grease base oil viscosity at 100 ℃;
K2at an absolute temperature of 40 ℃, 40 ℃ +273 ═ 313K;
K3absolute temperature 100 ℃, 100 ℃ +273 ═ 373K.
The step of judging whether the viscosity of the lubricating grease is qualified at the current rotating speed and temperature comprises the following steps:
if the calculated viscosity G is greater than or equal to the ideal viscosity G1Judging that the viscosity of the lubricating grease is qualified at the rotating speed and the temperature, otherwise, judging that the viscosity of the lubricating grease is unqualified.
The judging the selection of the lubricating grease according to the qualified proportion comprises the following steps: and if the qualified proportion is larger than the preset value, judging that the lubricating grease is suitable for the wind field.
Further, the qualified proportion is 65% to 75%, and in this embodiment, the qualified proportion is 70%.
FIG. 2 schematically illustrates a block diagram of an electronic device (or computing device) 800 suitable for use to implement embodiments of the present disclosure. The device 800 may be a device for implementing the method shown in fig. 1. As shown in fig. 2, device 800 includes a Central Processing Unit (CPU)801 that may perform various appropriate actions and processes in accordance with computer program instructions stored in a Read Only Memory (ROM)802 or loaded from a storage unit 808 into a Random Access Memory (RAM) 803. In the RAM, various programs and data required for the operation of the device 800 can also be stored. The CPU, ROM, and RAM are connected to each other by a bus 804. An input/output (I/O) interface 805 is also connected to bus 804.
It should be further appreciated that the present disclosure may be embodied as methods, apparatus, systems, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for carrying out various aspects of the present disclosure.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. A method for selecting lubricating grease for a main bearing of a fan is characterized by comprising the following steps:
acquiring the inner diameter and the outer diameter of a fan main bearing, the rotating speed range of a fan main shaft and the viscosity of lubricating grease base oil used by the fan main bearing, and counting a bearing temperature interval and bearing temperature duration at each rotating speed within the rotating speed range of the main shaft;
selecting a rotating speed and a temperature within the rotating speed range of the main shaft and the temperature range of the bearing, and judging whether the viscosity of the lubricating grease is qualified or not at the current rotating speed and temperature;
counting the qualified time of the current rotating speed at different temperatures;
obtaining the qualified time of the lubricating grease at different temperatures at all rotating speeds, calculating the qualified proportion by combining the time span of sample collection, and finally judging the selection of the lubricating grease according to the qualified proportion.
2. The selection method according to claim 1, wherein the determining whether the viscosity of the grease is acceptable at the current rotation speed and temperature comprises:
calculating the ideal viscosity at a certain rotating speed within the range of the rotating speed of the main shaft;
and counting the temperature of the main bearing of the fan at the rotating speed, calculating the viscosity corresponding to the temperature, comparing the calculated viscosity with the ideal viscosity at the rotating speed, and judging whether the viscosity of the lubricating grease at the current rotating speed and the temperature is qualified or not.
3. A method according to claim 2, wherein said calculation of the desired viscosity at said speed is:
4. The selection method according to claim 3, wherein the temperature of the main bearing of the fan at the rotating speed is counted, and the viscosity corresponding to the temperature is calculated as:
G＝10^(10^(B1-C1*log10(K1)))-0.6
wherein:
C1＝(log10(log10(G2+0.6))-log10(log10(G3+0.6)))/(log10(K3)-log10(K2))
B1＝log10(log10(G2+0.6))+C1*log10(K2)；
wherein: g is viscosity corresponding to temperature;
K1is the bearing temperature;
G2grease base oil viscosity at 40 ℃;
G3grease base oil viscosity at 100 ℃;
K2at an absolute temperature of 40 ℃, 40 ℃ +273 ═ 313K;
K3absolute temperature 100 ℃, 100 ℃ +273 ═ 373K.
5. The selection method according to claim 4, wherein the determining whether the viscosity of the grease is acceptable at the current rotation speed and temperature comprises:
if the calculated viscosity G is greater than or equal to the ideal viscosity G1Judging that the viscosity of the lubricating grease is qualified at the rotating speed and the temperature, otherwise, judging that the viscosity of the lubricating grease is unqualified.
6. A selection method according to claim 1, wherein said determining the selection of the grease according to said acceptance ratio comprises:
and if the qualified proportion is larger than the preset value, judging that the lubricating grease is suitable for the wind field.
7. The method of claim 1, wherein the qualifying proportion is between 65% and 75%.
8. A computing device, comprising: at least one processor; and at least one memory coupled to the at least one processor and storing instructions for execution by the at least one processor, the instructions when executed by the at least one processor causing the computing device to perform the steps of the method of any of claims 1-7.
9. A computer-readable storage medium, having stored thereon computer program code which, when executed, performs the method of any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110357785.8A CN112989519A (en) | 2021-04-01 | 2021-04-01 | Selection method for lubricating grease for main bearing of fan, computing equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110357785.8A CN112989519A (en) | 2021-04-01 | 2021-04-01 | Selection method for lubricating grease for main bearing of fan, computing equipment and storage medium |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332819A (en) * | 2003-05-07 | 2004-11-25 | Nsk Ltd | Spindle supporting bearing for machine tool |
| CN105899945A (en) * | 2013-12-17 | 2016-08-24 | 斯凯孚公司 | Viscosity estimation from demodulated acoustic emission |
| CN106370556A (en) * | 2016-08-17 | 2017-02-01 | 北京航空航天大学 | Viscosity analysis-based lubricating oil life on-line monitoring system and method |
| CN108061103A (en) * | 2016-11-09 | 2018-05-22 | 斯凯孚公司 | Cooling system |
-
2021
- 2021-04-01 CN CN202110357785.8A patent/CN112989519A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004332819A (en) * | 2003-05-07 | 2004-11-25 | Nsk Ltd | Spindle supporting bearing for machine tool |
| CN105899945A (en) * | 2013-12-17 | 2016-08-24 | 斯凯孚公司 | Viscosity estimation from demodulated acoustic emission |
| CN106370556A (en) * | 2016-08-17 | 2017-02-01 | 北京航空航天大学 | Viscosity analysis-based lubricating oil life on-line monitoring system and method |
| CN108061103A (en) * | 2016-11-09 | 2018-05-22 | 斯凯孚公司 | Cooling system |
Non-Patent Citations (1)
| Title |
|---|
| 杨红卫等: "润滑脂在轴承中的应用及选型", 《哈尔滨轴承》 * |
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Application publication date: 20210618 |