CN111502928A - Grease cleaning method - Google Patents
Grease cleaning method Download PDFInfo
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- CN111502928A CN111502928A CN202010195413.5A CN202010195413A CN111502928A CN 111502928 A CN111502928 A CN 111502928A CN 202010195413 A CN202010195413 A CN 202010195413A CN 111502928 A CN111502928 A CN 111502928A
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- Prior art keywords
- bearing
- grease
- main shaft
- cleaning
- dry ice
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
- F03D80/55—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The embodiment of the invention provides a grease cleaning method, which comprises the following steps: detecting whether grease on a main shaft and a bearing of equipment is abnormal or not; if so, cleaning at least grease on the surfaces of the main shaft and the bearing in a first cleaning operation; debugging dry ice cleaning equipment, and cleaning at least grease at the gap inside the bearing by second cleaning operation based on the dry ice cleaning equipment; and checking whether the cleaned main shaft and the cleaned bearing meet specific standards, and if not, continuing to clean the main shaft or the bearing by the first cleaning operation or the second cleaning operation. The grease cleaning method provided by the embodiment of the invention can quickly and efficiently clean grease on the main shaft and the bearing, and ensure that the main shaft and the bearing operate normally.
Description
Technical Field
The embodiment of the invention relates to the field of wind driven generators, in particular to a grease cleaning method.
Background
The wind generating set main shaft equipment has long running time, grease in a bearing cavity is deteriorated or separated, if grease is not cleaned in time, the lubrication of a main shaft bearing roller is poor, so that the abrasion to a roller path and a retainer is increased, the service life of a large part of a fan main shaft is directly influenced, the main shaft is burnt in serious conditions, and great economic loss risk is brought to wind power equipment operators.
In the ordinary maintenance work of the main shaft, the used lubricating oil is mainly oil recommended by a unit production manufacturer, and the lubricating oil is not suitable in fact. Since the oil products of the fans are upgraded from development to the present, the lubricating requirements of the fans cannot be met by using the grease according to the regulations of maintenance manuals and specifications, and the grease needs to be selected according to the indexes such as load, speed, temperature and the like. Along with the increase of the operating life of the unit, the main bearing is damaged and needs to be replaced every year basically. The main bearing temperature of the wind turbine generators is continuously higher in the operation process. The inspection shows that the grease of the main bearing of the units has hardening phenomenon, and the grease extruded at the sealing ring has color change and deterioration. The main bearings of the units are in an early-stage attention state, the problem of grease deterioration of the main shaft bearings and worn scrap iron in the bearings need to be effectively cleaned and maintained, when the fan main shaft bearings are originally maintained, the fan main shaft bearings are manually cleaned, complete cleaning of the bearings cannot be achieved at all, and therefore the real maintenance effect cannot be achieved.
Disclosure of Invention
The embodiment of the invention provides a grease cleaning method capable of quickly and efficiently cleaning grease on a main shaft and a bearing.
In order to solve the technical problem, an embodiment of the present invention provides a grease cleaning method, including:
detecting whether grease on a main shaft and a bearing of equipment is abnormal or not;
if so, cleaning at least grease on the surfaces of the main shaft and the bearing in a first cleaning operation;
debugging dry ice cleaning equipment, and cleaning at least grease at the gap inside the bearing by second cleaning operation based on the dry ice cleaning equipment;
and checking whether the cleaned main shaft and the cleaned bearing meet specific standards, and if not, continuing to clean the main shaft or the bearing by the first cleaning operation or the second cleaning operation.
Preferably, the first cleaning operation is a manual cleaning operation or an operation of cleaning by spraying dry ice by a dry ice cleaning apparatus, and the second cleaning operation is an operation of cleaning by spraying dry ice by a dry ice cleaning apparatus.
Preferably, the detecting whether the grease on the main shaft or the bearing of the device is abnormal includes:
detecting whether the grease has the phenomena of agglomeration, deterioration and scrap iron, and if so, determining that the grease is abnormal.
Preferably, the commissioning dry ice cleaning apparatus comprises:
and connecting an equipment nozzle pipe of the dry ice cleaning equipment with a pressure pipe of air compressor equipment, and adjusting the conveying pressure of the air compressor equipment.
Preferably, the checking whether the cleaned spindle and the cleaned bearing meet a specific standard includes:
and determining whether the cleaned main shaft and the cleaned bearing meet a specific standard or not through human eye observation and a high-definition image shot by an industrial endoscope.
Preferably, after the main shaft and the bearing after cleaning are determined to meet specific standards, the method further comprises the following steps:
detecting whether abnormal sounds exist in the main shaft and the bearing in the running state, and if the abnormal sounds exist in the main shaft and the bearing, disassembling the main shaft and the bearing to separate the main shaft and the bearing for fault detection; or
And detecting whether the main shaft and the bearing are abnormal or not by using the industrial endoscope, and if so, disassembling to separate the main shaft and the bearing for fault detection.
Preferably, if the main shaft and the bearing are detected and determined to be free of faults, the method further comprises the following steps:
and filling lubricating grease on the cleaned bearing.
Preferably, the step of filling the bearing with lubricating grease after cleaning comprises:
coating lubricating grease on the surface of the bearing;
installing the bearing coated with the grease on a bearing seat, and connecting the bearing with the main shaft to enable the bearing to be in a running state;
when the bearing rotates at a low speed, a grease filling gun is used for filling grease for lubrication into the bearing through a grease filling port on the bearing seat, so that the grease infiltrates gaps in the bearing.
Preferably, the method further comprises the following steps:
after the grease is filled, the grease discharging port on the bearing seat is opened in the rotating state of the bearing, so that the grease discharging port can discharge grease smoothly.
Preferably, the apparatus is a wind power plant.
Based on the disclosure of the embodiment, the cleaning maintenance method has the advantages that the main shaft or the bearing of the equipment is cleaned and maintained in a mode of cleaning grease by spraying dry ice, the cleaning maintenance method is efficient, fast, time-saving and labor-saving, risks such as local damage to the main shaft and the bearing and the like during operation of the equipment due to incomplete manual cleaning of the main shaft and the bearing can be effectively controlled, the service lives of the main shaft and the bearing are prolonged, the tower descending rate of large parts is reduced, and the operation and maintenance cost is saved. In addition, potential safety hazards of the main shaft and the bearing can be found in time and fault development can be restrained as early as possible through grease detection, cleaning and subsequent grease replacement of the main shaft and the bearing of the equipment, and the overall use effect and the service life of the equipment are further improved.
Drawings
Fig. 1 is a flowchart of a grease cleaning method in an embodiment of the present application.
Fig. 2 is a flow chart of a grease cleaning method according to another embodiment of the present application.
Fig. 3 is a state diagram of the bearing of the present application before it is cleaned.
Fig. 4 is a state diagram after the bearing cleaning in the present application.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.
It will be understood that various modifications may be made to the embodiments disclosed herein. The following description is, therefore, not to be taken in a limiting sense, but is made merely as an exemplification of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a grease cleaning method, including:
detecting whether grease on a main shaft and a bearing of equipment is abnormal or not;
if so, cleaning grease on the surfaces of at least the main shaft and the bearing in a first cleaning operation;
debugging dry ice cleaning equipment, and cleaning at least grease at the gap inside the bearing by second cleaning operation based on the dry ice cleaning equipment;
and checking whether the cleaned main shaft and the cleaned bearing meet specific standards, and if not, continuing to clean the main shaft or the bearing by the first cleaning operation or the second cleaning operation.
Specifically, the device in this embodiment is a wind turbine, and the main shaft and the bearing thereof are linked with the fan blades. When the main shaft and the bearing operate outdoors for a period of time, the grease on the main shaft and the bearing can be changed to a certain extent, for example, the texture becomes hard, and if the main shaft and the bearing continue to operate in the grease state, the main shaft and the bearing can be abraded and blocked, the normal operation of the wind driven generator can be affected, even the service life of the wind driven generator can be shortened, or certain potential safety hazards can be brought. In order to avoid the adverse phenomenon, a worker can regularly detect whether grease on a main shaft and a bearing of the wind driven generator is abnormal, if the grease is abnormal when the wind driven generator climbs, the grease on the surfaces of the main shaft and the bearing can be directly removed by a first cleaning operation, and if the grease is abnormal, the grease on the surfaces of the main shaft and the bearing can be directly removed by the first cleaning operation, and if deteriorated grease on the surfaces of the main shaft and the bearing is removed by the first cleaning operation. And then, the step of debugging the dry ice cleaning equipment by the staff on the ground is not limited to be carried out after the first cleaning operation is finished, and the step of debugging can be carried out before the first cleaning operation is carried out, and if the staff can debug the dry ice cleaning equipment and then climb up the wind driven generator to detect whether the grease is abnormal, the specific mode is uncertain. After the dry ice cleaning device is adjusted, cleaning at least gaps among balls in the bearing and the like by using a spray gun for spraying dry ice in the dry ice cleaning device through second cleaning operation, namely, the second cleaning operation is the operation of spraying the dry ice to the gaps in the bearing by using the spray gun. After the second cleaning operation is completed, the worker can inspect the cleaned main shaft and the cleaned bearing to determine whether the cleaning effect meets a specific standard, for example, whether no grease remains, whether the color, the glossiness and the like of the surfaces of the main shaft and the bearing meet a preset standard or not, if yes, the worker can perform other subsequent steps on the main shaft and the bearing, and if not, the worker needs to continue to clean the main shaft and the bearing by the first cleaning operation or the second cleaning operation until the cleaned main shaft and the cleaned bearing meet the specific standard.
Based on the disclosure of the embodiment, the main shaft or the bearing of the equipment is cleaned and maintained in a grease cleaning mode by spraying dry ice, so that the main shaft or the bearing is efficient, rapid, time-saving and labor-saving, the main shaft and the bearing are not required to be disassembled, the risks of local damage and the like of the main shaft and the bearing when the equipment runs due to incomplete manual cleaning can be effectively controlled, and the service life of the main shaft and the bearing is prolonged. In addition, through grease detection and cleaning of the main shaft and the bearing of the equipment, potential safety hazards of the main shaft and the bearing can be found in time, fault development can be restrained as soon as possible, the overall use effect of the equipment is further improved, and the service life of the equipment is further prolonged. That is, in the cleaning work of the main shaft of the wind generating set, the operation condition of the main shaft of the wind generating set can be effectively checked, the operation age limit is estimated, the occurrence of major potential safety hazards is reduced, and the generating quality of wind power generation and the availability of the wind generating set are ensured.
Further, the first cleaning operation may be a manual cleaning operation performed by an operator, for example, a manual cleaning operation performed by an operator using a tool such as a spatula or a spatula to remove grease on the surfaces of the spindle and the bearing, or a cleaning operation performed by a dry ice cleaning device spraying dry ice, that is, a cleaning operation performed by a dry ice cleaning device spraying dry ice, as in the second cleaning operation.
Further, detecting whether grease on a main shaft and a bearing of the equipment is abnormal comprises the following steps:
detecting whether the grease has the phenomena of agglomeration, deterioration and scrap iron, and if so, determining that the grease is abnormal.
That is, whether the grease on staff's accessible observation main shaft and the bearing is rotten, promptly, the texture becomes hard, leads to a large amount of grease to appear condensing, the caking phenomenon, or whether it has iron fillings, for example after the grease becomes hard to a certain extent, main shaft and bearing operation can produce the friction with this grease, and then make main shaft and bearing can produce certain iron fillings to adhere to on the grease, so if mix when having iron fillings on the grease, indicate that the grease produces unusually, need the clearance.
Further, when the dry ice cleaning equipment is debugged, the method comprises the following steps:
and connecting an equipment nozzle pipe of the dry ice cleaning equipment with a pressure pipe of the air compressor equipment, and adjusting the dry ice cleaning equipment by adjusting the conveying pressure of the air compressor equipment.
During specific operation, a worker detaches a sealing end cover of the bearing, then checks whether grease of the main shaft and the bearing is abnormal or not, if so, the bearing and the grease on the surface of the main shaft which is easy to clean can be cleaned manually, and then grease which is difficult to clean on the main shaft and the bearing, such as grease layers attached on the main shaft and the bearing, grease among bearing balls and the like can be cleaned through dry ice. Firstly, the staff need link to each other the shower nozzle pipe of dry ice cleaning equipment with the pressure pipe of air compressor machine equipment, then adjust the delivery pressure of air compressor machine, specifically can set up according to actual need. After the conveying pressure is adjusted, a worker can spray dry ice on the grease in the target area through the spray head pipe to clean the grease. The main part of the dry ice cleaning is thatThe grease is contracted at different contraction speeds by using the physical reaction of temperature difference so as to be separated from the main shaft and the bearing, specifically, when dry ice particles are contacted with the cleaning surface of the main shaft or the bearing, heat exchange can be rapidly carried out between the dry ice particles and the main shaft or the bearing, and the dry ice can absorb the heat of the main shaft and the bearing to be instantly gasified when impacting the cleaning surface, so that solid CO is generated2Sublimes rapidly to become a gas. Due to CO2The oil dirt is evaporated, no secondary waste is generated in the dry ice cleaning process, and the oil dirt which needs to be collected and cleaned and is removed is left. In the process, because the temperature of the dry ice particles is extremely low (-78 ℃), the dry ice particles have unique thermodynamic properties due to the low temperature, when the dry ice particles are sprayed to the cleaning surface, the dry ice particles absorb the heat of the main shaft, the bearing and the grease, and can expand nearly 800 times in volume within thousands of seconds to cause micro explosion on an impact point and generate serious thermal shock, so that the dry ice particles can impact and break a dirt layer to influence the mechanical property of adhered dirt, namely, the caking is caused, the hardened grease is crushed, and then the grease is separated from the main shaft or the bearing and falls off to achieve the cleaning effect. The specific cleaning effect can be seen in the images shown in fig. 3 and 4.
Further, after the cleaning is completed, the worker needs to check the spindle and the bearing to determine whether the cleaning result meets a specific standard, and the method specifically includes:
whether the cleaned main shaft and the cleaned bearing meet a specific standard or not is determined through human eye observation and a high-definition image shot by an industrial endoscope.
For example, a worker can observe the spindle through eyes, whether the surface of the bearing has obvious grease residues, and for fine places, particularly the interior of the bearing, the fine places can be checked through a high-definition image shot by an industrial endoscope, and whether the cleaning result meets a specific standard is determined.
In addition, in practical application, the working personnel can record all the operation parameters of the main shaft and the bearing before and after cleaning, the inspection results, the diagnostic analysis of grease, the diagnostic results, the cleaning operation adopted in the cleaning process and the debugging of the dry ice cleaning equipment so as to facilitate the follow-up data tracking.
Further, in this embodiment, after it is determined that the cleaned spindle and the cleaned bearing meet the specific standard, the method further includes:
detecting whether abnormal sound exists in the main shaft and the bearing in the running state, if so, detaching to separate the main shaft and the bearing, and detecting whether the grease on the main shaft and the bearing is abnormal; or
And detecting whether the main shaft and the bearing are abnormal or not by using the industrial endoscope, and if so, detaching the main shaft and the bearing to separate the main shaft and the bearing for fault detection.
For example, when the main shaft and the bearing operate, a worker can listen to whether the main shaft and the bearing have abnormal sound or observe whether the main shaft and the bearing have a stuck phenomenon or not, if the main shaft and the bearing have abnormal sound, the main shaft and the bearing are disassembled to be separated, and then the main shaft and the bearing are carefully inspected to determine a fault point. Or, the worker may also use the industrial endoscope to detect whether the main shaft and the bearing are abnormal, such as whether the main shaft and the bearing are damaged or not, whether a joint surface of the main shaft and the bearing is abnormal or not, dislocation or the like, and if the abnormality is detected, the worker may separate the main shaft from the bearing to perform fault detection. That is, in this embodiment, the worker finds the grease abnormality, and only needs to open the end cover of the bearing seat in the process of cleaning the grease to expose the bearing for cleaning, and does not need to detach the main shaft and the bearing, and only when the main shaft and the bearing are in failure, the main shaft and the bearing are detached, so that the cost and manpower for hoisting and carrying the main shaft and the bearing in the cleaning stage are reduced, the grease cleaning process is greatly simplified, and the worker can be helped to find the failure point more quickly by performing fault detection on the main shaft and the bearing after the grease cleaning, and the overall working efficiency is remarkably improved. In addition, the main shaft and the bearing of the wind driven generator are not required to be disassembled and carried during cleaning, so that workers can easily maintain the wind driven generator in daily life, the abnormity of the wind driven generator can be found earlier, and the generation of serious faults is avoided.
Further, as shown in fig. 2, if it is determined that the main shaft and the bearing have no fault through detection, the grease cleaning method in this embodiment further includes:
and filling lubricating grease on the cleaned bearing.
The method specifically comprises the following steps:
coating lubricating grease on the surface of the bearing;
when the bearing rotates at a low speed, the grease filling gun is used for filling grease for lustering into the bearing through the oil filling port on the bearing seat, so that the grease infiltrates into each gap inside the bearing.
For example, after the grease cleaning is completed, in order to make the bearing and the main shaft run more smoothly and generate less friction, a worker needs to fill new grease, i.e., grease for lubricating the bearing, into the bearing, where the grease used in this embodiment is kruegby grease (Kl ü berplex BEM 41-141).
After the above operations are completed, the method in this embodiment further includes:
after the grease is filled, the grease discharging port on the bearing seat is opened in the rotating state of the bearing, so that the grease discharging port can discharge grease smoothly.
The grease outlet is usually located at the lowest position of the bearing seat, grease on the bearing can flow out through the grease outlet when the bearing rotates, and if the grease filling of the bearing is finished, a worker can determine whether the grease is completely filled by observing whether the grease on the bearing can smoothly flow out of the grease outlet when the bearing rotates.
After the oil filling is finished, equipment needs to be cleaned sanitarily, waste products and waste materials left after site construction are cleaned completely, and 'work completion, material exhaustion and site cleaning' are achieved.
In addition, when the worker executes the above operation flow, the following matters need to be noted:
1. and strictly executing relevant technical and safe operating regulations of wind turbine manufacturers.
2. And comprehensively checking, counting and filing the instant temperature and the historical temperature of the main bearing when each fan runs, and analyzing the lubricating condition of the crude oil in the running state.
3. The cleaning process needs to wear a piece of thick cotton cloth gloves and takes protective measures.
4. The interior of the main bearing is cleaned strictly according to the operation flow and the cleaning agent and impurities are ensured to be free from residue.
5. Treating waste cleaning liquid according to the field conditions (for example, using waste oil collecting box to catch hardened and waste grease, making some protection around the bearing to catch waste grease, etc.)
6. The replacement is executed according to the initial lubricating dosage of the original machine set manufacturer.
7. The replacement is carried out according to the steps and the method of the scheme strictly.
8. Compatibility of Krueber grease (Kl ü berplex BEM41-141) with previously used greases was confirmed.
9. And the Krueb lubricating grease is prevented from being polluted from the outside in the processes of transportation and injection.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (10)
1. A method for cleaning grease, comprising:
detecting whether grease on a main shaft and a bearing of equipment is abnormal or not;
if so, cleaning at least grease on the surfaces of the main shaft and the bearing in a first cleaning operation;
debugging dry ice cleaning equipment, and cleaning at least grease at the gap inside the bearing by second cleaning operation based on the dry ice cleaning equipment;
and checking whether the cleaned main shaft and the cleaned bearing meet specific standards, and if not, continuing to clean the main shaft or the bearing by the first cleaning operation or the second cleaning operation.
2. A method according to claim 1, characterized in that the first cleaning operation is a manual cleaning operation or an operation for cleaning by means of dry ice blasting by means of a dry ice cleaning device, and the second cleaning operation is an operation for cleaning by means of dry ice blasting by means of a dry ice cleaning device.
3. The method of claim 1, wherein the detecting whether the grease on the main shaft and the bearing of the device is abnormal comprises:
detecting whether the grease has the phenomena of agglomeration, deterioration and scrap iron, and if so, determining that the grease is abnormal.
4. The method of claim 1, wherein commissioning a dry ice cleaning device comprises:
and connecting an equipment nozzle pipe of the dry ice cleaning equipment with a pressure pipe of air compressor equipment, and adjusting the dry ice cleaning equipment by adjusting the conveying pressure of the air compressor equipment.
5. The method of claim 1, wherein the checking whether the cleaned spindle and bearing meet certain standards comprises:
and determining whether the cleaned main shaft and the cleaned bearing meet a specific standard or not through human eye observation and a high-definition image shot by an industrial endoscope.
6. The method of claim 5, wherein after determining that the cleaned spindle and the cleaned bearing meet certain standards, the method further comprises:
detecting whether abnormal sounds exist in the main shaft and the bearing in the running state, and if the abnormal sounds exist in the main shaft and the bearing, disassembling the main shaft and the bearing to separate the main shaft and the bearing for fault detection; or
And detecting whether the main shaft and the bearing are abnormal or not by using the industrial endoscope, and if so, disassembling to separate the main shaft and the bearing for fault detection.
7. The method of claim 6, wherein if the detecting determines that the main shaft and the bearing are not faulty, the method further comprises:
and filling lubricating grease on the cleaned bearing.
8. The method of claim 7, wherein said filling the cleaned bearing with lubricating grease comprises:
coating lubricating grease on the surface of the bearing;
when the bearing rotates at a low speed, a grease filling gun is used for filling grease for lustering into the bearing through a grease filling port on the bearing seat, so that the grease infiltrates gaps in the bearing.
9. The method of claim 8, further comprising:
after the grease is filled, the grease discharging port on the bearing seat is opened in the rotating state of the bearing, so that the grease discharging port can discharge grease smoothly.
10. The method of claim 1, wherein the device is a wind turbine generator set.
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| CN202010195413.5A CN111502928A (en) | 2020-03-19 | 2020-03-19 | Grease cleaning method |
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|---|---|---|---|
| CN202010195413.5A CN111502928A (en) | 2020-03-19 | 2020-03-19 | Grease cleaning method |
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