Bearing cleaning method and bearing cleaning device

Abstract

The present disclosure provides a bearing cleaning method and a bearing cleaning device. The bearing cleaning method may include: in response to receiving a bearing cleaning instruction, controlling a first lubrication pump to add a cleaning agent to the bearing, wherein the first lubrication pump is used to pre-load a specific amount of cleaning agent for the bearing type; determining whether the first lubrication pump meets the condition to stop adding the cleaning agent to the bearing; in response to the first lubrication pump meeting the condition to stop adding the cleaning agent to the bearing, controlling the first lubrication pump to stop adding the cleaning agent to the bearing and controlling the second lubrication pump to add lubricant to the bearing. The present disclosure combines online cleaning and automatic grease filling into one, improves the efficiency of bearing cleaning, and reduces the economic losses caused by stopping the machine to clean the bearing.

Description

Technical Field

[0001] The present disclosure relates to the technical field of bearing cleaning, and in particular to a bearing cleaning method and a bearing cleaning device for cleaning a bearing. Background Art

[0002] Bearings are an important component in mechanical equipment. Their main function is to support the mechanical rotating body and reduce the mechanical load friction coefficient of the equipment during the transmission process. Grease or lubricating oil is generally added to the bearing. After a certain period of use, metal carbon deposits and other oil stains are easily generated inside the bearing. If they are not cleaned, the oil stains will reduce their service life and affect the performance of the bearing. Therefore, in order to ensure that the bearing is in normal working condition, the bearing needs to be cleaned regularly. For example, the main bearing of a wind turbine is the hub of the wind turbine transmission chain. As the core component of the wind turbine, the wind turbine has complex stress and vibration conditions and works in corrosion, sand, humidity and low temperature environments. With the increase in operating years, the number of main bearing failure towers is also increasing. When the main bearing is damaged, if there is no effective means of suppression, the iron filings will continue to mix in the grease and cannot be discharged in time, affecting the bearing lubrication and causing the bearing temperature to rise, accelerating the deterioration of the main bearing, and eventually causing failure towers, resulting in large losses. Therefore, after the main bearing is damaged, it is urgent to clean the main bearing, effectively discharge the waste grease containing iron filings inside the bearing, add new grease, and ensure good lubrication of the bearing.

[0003] At present, the main solutions for bearing cleaning are solvent cleaning or dry ice cleaning. However, the solvent cleaning solution has high requirements for sealing, which can easily cause leakage during the cleaning process. In addition, the cleaning of the bearings and the filling of new grease require shutdown, and the cleaning status must be checked continuously, making it impossible to achieve online intelligent cleaning. In addition, the dry ice cleaning solution also requires shutdown, and it cannot avoid the problem of condensed water easily generated inside the bearings after dry ice cleaning, which affects the subsequent lubrication of the bearings. Especially for the main bearings of wind turbines, the dry ice cleaning solution is limited by the structure of the main bearings of the wind turbine, has few application scenarios, and cannot involve all wind turbine structures. At the same time, there are also problems such as the large number of equipment types required for the dry ice cleaning solution, high requirements for personnel operation level, and the difficulty of storing dry ice. In addition, other cleaning solutions cannot achieve remote monitoring functions. Summary of the invention

[0004] The present disclosure provides a bearing cleaning method and a bearing cleaning device to at least solve the above-mentioned problems.

[0005] According to a first aspect of an embodiment of the present disclosure, a bearing cleaning method is provided, which may include: in response to receiving a bearing cleaning instruction, controlling a first lubrication pump to add a cleaning agent to the bearing, wherein the first lubrication pump is used to pre-load a specific amount of cleaning agent for a bearing type; determining whether the first lubrication pump meets a condition for stopping adding cleaning agent to the bearing; in response to the first lubrication pump meeting the condition for stopping adding cleaning agent to the bearing, controlling the first lubrication pump to stop adding cleaning agent to the bearing and controlling a second lubrication pump to add lubricant to the bearing.

[0006] Optionally, the conditions may include at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; and the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration.

[0007] Optionally, when the first lubrication pump triggers a low oil level signal of a cleaning agent, the first lubrication pump can be controlled to stop adding cleaning agent to the bearing and the second lubrication pump can be controlled to add lubricant to the bearing, wherein, before the first lubrication pump is controlled to stop adding cleaning agent to the bearing based on the low oil level signal of the cleaning agent, when the pollutant concentration meets a preset concentration, the first lubrication pump can be controlled to stop adding cleaning agent to the bearing and the second lubrication pump can be controlled to add lubricant to the bearing.

[0008] Optionally, the second lubrication pump can be used to pre-load a specific amount of lubricant for the bearing type, and the step of controlling the second lubrication pump to add lubricant to the bearing may include: monitoring whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump has reached an amount that cannot operate normally; in response to receiving the low oil level signal of the lubricant, controlling the second lubrication pump to stop adding lubricant to the bearing.

[0009] Optionally, the step of controlling the first lubrication pump to add cleaning agent to the bearing may include: adding the cleaning agent output from the first lubrication pump to the bearing evenly in a quantitative manner through a first distributor; and the step of controlling the second lubrication pump to add lubricant to the bearing may include: adding the lubricant output from the second lubrication pump to the bearing evenly in a quantitative manner through a second distributor.

[0010] Optionally, the bearing cleaning method may further include: acquiring the temperature of the bearing collected by a bearing temperature sensor, and sending a warning signal in response to the temperature reaching a preset temperature, wherein the warning signal is used to indicate that the current temperature of the bearing is too high.

[0011] Optionally, the bearing may include any one of the following: a yaw bearing, a pitch bearing, a generator bearing and a main bearing of a wind turbine generator set.

[0012] According to a second aspect of an embodiment of the present disclosure, a bearing cleaning system is provided, which may include: a first lubrication pump, a second lubrication pump, and a controller, wherein the first lubrication pump and the second lubrication pump are respectively communicatively connected to the controller, wherein the first lubrication pump is configured to pre-load a specific amount of cleaning agent according to the bearing type; the second lubrication pump is configured to pre-load a specific amount of lubricant according to the bearing type; and the controller is configured to: in response to receiving a bearing cleaning instruction, control the first lubrication pump to add cleaning agent to the bearing; determine whether the first lubrication pump meets the condition for stopping adding cleaning agent to the bearing; in response to the first lubrication pump meeting the condition for stopping adding cleaning agent to the bearing, control the first lubrication pump to stop adding cleaning agent to the bearing and control the second lubrication pump to add lubricant to the bearing.

[0013] Optionally, the conditions may include at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump has reached an amount that cannot operate normally; and the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration.

[0014] Optionally, the bearing cleaning system may further include: a grease status monitoring sensor, which is communicatively connected to the controller and can be configured to: detect the pollutant concentration of waste grease discharged during the cleaning process of the bearing, and send a cleaning end instruction to the controller when the pollutant concentration meets a preset concentration, wherein the controller can be configured to: if the cleaning end instruction is received before the first lubrication pump is controlled to stop adding cleaning agent to the bearing based on a low oil level signal of the cleaning agent, then based on the cleaning end instruction, control the first lubrication pump to stop adding cleaning agent to the bearing and control the second lubrication pump to add lubricant to the bearing.

[0015] Optionally, the bearing cleaning system may further include: a bearing temperature sensor, configured to detect the temperature of the bearing and send the temperature of the bearing to the controller, wherein the controller may be configured to send an early warning signal in response to the temperature of the bearing reaching a preset temperature, wherein the early warning signal is used to indicate that the current temperature of the bearing is too high.

[0016] Optionally, the controller may be configured to: monitor whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump has reached an amount that prevents it from operating normally; and in response to receiving the low oil level signal of the lubricant, control the second lubrication pump to stop adding lubricant to the bearing.

[0017] Optionally, the bearing cleaning system may also include a first distributor and a second distributor, wherein the first distributor is connected to the first lubrication pump and the second distributor is connected to the second lubrication pump, wherein the first distributor may be configured to uniformly add the cleaning agent output from the first lubrication pump to the bearing in a quantitative manner, and the second distributor may be configured to uniformly add the lubricant output from the second lubrication pump to the bearing in a quantitative manner.

[0018] Optionally, the bearing cleaning system may further include a three-way pipe fitting, wherein the first end of the three-way pipe fitting is connected to the output pipeline of the first distributor, the second end of the three-way pipe fitting is connected to the output pipeline of the second distributor, and the third end of the three-way pipe fitting is connected to the lubrication point of the bearing mounting seat, wherein the cleaning agent and lubricant are filled into the interior of the bearing through the third end.

[0019] Optionally, the bearing may include any one of the following: a yaw bearing, a pitch bearing, a generator bearing and a main bearing of a wind turbine generator set.

[0020] According to a third aspect of an embodiment of the present disclosure, a bearing cleaning device is provided, which may include: a control module, configured to control a first lubrication pump to add cleaning agent to the bearing in response to receiving a bearing cleaning instruction, wherein the first lubrication pump is used to pre-load a specific amount of cleaning agent for a bearing type; a monitoring module, configured to determine whether the first lubrication pump meets a condition for stopping adding cleaning agent to the bearing, wherein the control module is also configured to control the first lubrication pump to stop adding cleaning agent to the bearing and control the second lubrication pump to add lubricant to the bearing in response to the first lubrication pump meeting the condition for stopping adding cleaning agent to the bearing.

[0021] Optionally, the conditions may include at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; and the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration.

[0022] Optionally, when the first lubrication pump triggers a low oil level signal of the cleaning agent, the control module may be configured to control the first lubrication pump to stop adding cleaning agent to the bearing and to control the second lubrication pump to add lubricant to the bearing. Before the control module controls the first lubrication pump to stop adding cleaning agent to the bearing based on the low oil level signal of the cleaning agent, when the pollutant concentration meets a preset concentration, the control module may control the first lubrication pump to stop adding cleaning agent to the bearing and to control the second lubrication pump to add lubricant to the bearing.

[0023] Optionally, the second lubrication pump can be used to pre-load a specific amount of lubricant for the bearing type, and the monitoring module can be configured to monitor whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump has reached an amount that cannot work normally. The control module can be configured to control the second lubrication pump to stop adding lubricant to the bearing in response to receiving the low oil level signal of the lubricant.

[0024] Optionally, the bearing cleaning device may also include a first distribution module and a second distribution module, wherein the first distribution module can evenly add the cleaning agent output from the first lubrication pump to the bearing in a quantitative manner, and the second distribution module can evenly add the lubricant output from the second lubrication pump to the bearing in a quantitative manner.

[0025] Optionally, the bearing cleaning device may further include a temperature detection module configured to obtain the temperature of the bearing, wherein the control module may be configured to send a warning signal in response to the temperature reaching a preset temperature, wherein the warning signal is used to indicate that the current temperature of the bearing is too high.

[0026] Optionally, the bearing may include any one of the following: a yaw bearing, a pitch bearing, a generator bearing and a main bearing of a wind turbine generator set.

[0027] According to a fourth aspect of an embodiment of the present disclosure, an electronic device is provided, which may include: at least one processor; and at least one memory storing computer executable instructions, wherein the computer executable instructions, when executed by the at least one processor, prompt the at least one processor to execute the bearing cleaning method as described above.

[0028] According to a fifth aspect of an embodiment of the present disclosure, a computer-readable storage medium storing instructions is provided, which, when executed by at least one processor, prompts the at least one processor to execute the bearing cleaning method as described above.

[0029] The technical solution provided by the embodiments of the present disclosure brings at least the following beneficial effects:

[0030] The bearing can be cleaned online without stopping the machine, thus reducing the economic loss caused by stopping the machine for cleaning. In addition, the present invention combines online cleaning and automatic grease filling into one, thus improving the efficiency of bearing cleaning and extending the service life of bearings. In addition, the method and device of the present invention can be widely applied to various application scenarios and have higher maintainability of bearings.

[0031] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0033] Figure 1 is a structural schematic diagram of a bearing cleaning system according to an embodiment of the present disclosure;

[0034] Figure 2 is a flow chart of a bearing cleaning method according to an embodiment of the present disclosure;

[0035] Figure 3 is a flow chart of a method for filling a bearing cleaning agent according to an embodiment of the present disclosure;

[0036] Figure 4 is a flow chart of a bearing lubricant filling method according to an embodiment of the present disclosure;

[0037] Figure 5 is a flow chart of a method for monitoring temperature during a bearing cleaning process according to an embodiment of the present disclosure;

[0038] Figure 6 is a block diagram of a bearing cleaning device according to an embodiment of the present disclosure;

[0039] Figure 7 is a block diagram of an electronic device according to an embodiment of the present disclosure.

[0040] Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures. DETAILED DESCRIPTION

[0041] In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

[0042] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of the embodiments of the present disclosure as defined by the claims and their equivalents. Various specific details are included to assist in understanding, but these details are considered to be exemplary only. Therefore, one of ordinary skill in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and structures are omitted for clarity and brevity.

[0043] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Therefore, it should be clear to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustrative purposes only and is not intended to limit the purpose of the present disclosure as defined by the claims and their equivalents.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0045] Hereinafter, according to various embodiments of the present disclosure, the method, apparatus, and system of the present disclosure will be described in detail with reference to the accompanying drawings.

[0046] Figure 1 It is a structural schematic diagram of a bearing cleaning system according to an embodiment of the present disclosure. Figure 1 The bearing cleaning system shown can be applied to wind turbines or other equipment with bearings.

[0047] Reference Figure 1 The electric lubrication pump 1 (2), the electric lubrication pump 2 (4), the grease status monitoring sensor (8), and the bearing temperature sensor (9) can be combined into an online cleaning and automatic grease filling system through a controller (1). Here, the controller (1) can be a main controller in a device using the bearing cleaning system.

[0048] The electric lubrication pump 1 (which may also be referred to as the first lubrication pump) may be pre-installed with a cleaning agent (i.e., special grease for cleaning). The electric lubrication pump 1 is an execution unit for filling the cleaning grease, and is used for filling the cleaning grease. The electric lubrication pump 1 may be pre-installed with a cleaning agent according to the type of bearing to be cleaned. For example, the electric lubrication pump 1 may be pre-installed with a cleaning agent manually or automatically in a dosage corresponding to the bearing type. By pre-installing an appropriate amount of cleaning agent in the electric lubrication pump 1, when the cleaning agent in the electric lubrication pump 1 reaches a low oil level (the low oil level may be set differently in advance according to the bearing type), it may indicate that an appropriate cleaning agent has been added to the bearing, indicating that the cleaning standard for the bearing has been met. The electric lubrication pump 1 may be connected to the distributor (in a pipe) through a pipeline. Figure 1 The distributor can evenly distribute the cleaning grease in a quantitative manner and then add it into the bearing.

[0049] Lubricant (i.e., bearing grease) may be pre-installed in the electric lubrication pump 2 (which may also be referred to as the second lubrication pump). The electric lubrication pump 2 is an execution unit for grease filling, and is used for grease filling. Lubricant may be pre-installed in the electric lubrication pump 2 according to the type of bearing to be cleaned. For example, lubricant may be pre-installed in the electric lubrication pump 2 manually or automatically in a dosage corresponding to the bearing type. By pre-installing an appropriate amount of lubricant in the electric lubrication pump 2, when the lubricant in the electric lubrication pump 2 reaches a low oil level (the low oil level may be set differently in advance according to the bearing type), it may indicate that appropriate lubricant has been added to the bearing, that is, the added lubricant may meet the conditions for normal operation of the bearing. The electric lubrication pump 2 may be connected to the distributor (5) via a pipeline. The distributor (5) may evenly distribute the grease in a quantitative manner and then add it to the inside of the bearing.

[0050] Each outlet of the two distributors is connected by a three-way pipe fitting (3) and (6), and the three-way pipe fitting (3) and (6) can combine each grease outlet of the two distributors into one outlet. The outlets of the three-way pipe fittings (3) and (6) are connected to the lubrication point of the bearing mounting seat through a pipeline, and the grease discharge channel of the bearing mounting seat is installed to the waste grease collection device (7). The waste grease collection device (7) can be used to collect waste grease discharged during cleaning and grease filling.

[0051] A grease state monitoring sensor (8) is installed on the waste grease collection device (7), and the grease state monitoring sensor (8) is connected to the controller (1). For example, the grease state monitoring sensor (8) can continuously monitor the concentration of particles in the discharged waste grease, and convert it into an electrical signal to feed back to the controller (1).

[0052] In addition, a bearing temperature sensor (9) is installed on the end surface of the bearing and connected to the controller (1). The bearing temperature sensor (9) can continuously monitor the operating temperature of the bearing and transmit the temperature signal to the controller (1).

[0053] The power lines and oil level signal lines of the electric lubrication pump 1 and the electric lubrication pump 2 are connected to the controller (1), and the controller (1) can be connected to an external power source, such as a 24V power source.

[0054] The controller 1 can be used to receive and calculate the detection signal of the grease state monitoring sensor (8), and according to the calculation result, control the start and stop sequence of the electric lubrication pumps 1 and 2, and monitor the oil level feedback signal of the electric lubrication pumps 1 and 2. In addition, the controller (1) can also receive and calculate the detection data of the bearing temperature sensor, and send an early warning signal according to the calculation result. In addition, the controller (1) can be used to supply power to the electric lubrication pumps 1 and 2.

[0055] The working principle of the bearing cleaning system disclosed herein is explained below by taking the cleaning of the main bearing of a wind turbine generator set as an example. Figure 1 The controller (1) in the wind turbine generator system can be implemented by a central controller in the wind turbine generator system.

[0056] After the wind turbine system is started, the wind turbine starts running and the central controller (i.e. Figure 1 The controller (1) in the central controller enters the main bearing cleaning mode. Optionally, after the fan is started, the central controller may receive a cleaning instruction for the main bearing, and then the central controller enters the main bearing cleaning mode. The central controller controls the electric lubrication pump 1 to start working, and fills the cleaning grease into the main bearing. After the cleaning grease passes through the bearing, it will take away the waste grease inside the bearing. The waste grease will be discharged into the waste grease collection device (7). The grease state monitoring sensor (8) continuously monitors the pollutant concentration in the waste grease discharged from the bearing and feeds it back to the central controller. If it does not reach a preset concentration threshold, the central controller will continue to control the electric lubrication pump 1 to work until the pollutant concentration in the waste grease discharged from the bearing reaches a set concentration threshold, and then the central controller controls the electric lubrication pump 1 to stop working. When the electric lubrication pump 1 triggers a low oil level signal, the low oil level signal is fed back to the central controller, and the electric lubrication pump 1 stops working. If the pollutant concentration in the waste grease discharged from the bearing still does not reach the set concentration threshold when the electric lubrication pump 1 triggers the low oil level signal, the electric lubrication pump 1 may also stop working. The electric lubrication pump 1 can be made to continue working after lubricant is added to the electric lubrication pump 1 .

[0057] After the stop signal of electric lubrication pump 1 is triggered, the central controller enters the grease filling mode and controls electric lubrication pump 2 to start working. Until electric lubrication pump 2 triggers the low oil level signal, electric lubrication pump 2 stops working, the central controller stops working, and the online intelligent cleaning of the main bearing is completed.

[0058] During the bearing cleaning and grease filling process, the bearing temperature sensor (9) can continuously monitor the bearing operating temperature and feed back the bearing operating temperature to the central controller. The central controller can determine whether the bearing temperature exceeds the warning value. If it exceeds the warning value, it can send a warning signal to the monitoring personnel's electronic equipment through the network to notify the user that the current bearing operating temperature is too high. In this way, the monitoring personnel can determine whether to continue to operate the wind turbine based on the current bearing operating temperature. Alternatively, if it exceeds the warning value, the central controller can automatically shut down the wind turbine generator set to protect the safety of various components of the wind turbine generator set.

[0059] The above example describes the cleaning process of the main bearing of a wind turbine generator set, but the bearing cleaning system disclosed in the present invention can also be used to clean the yaw bearings, pitch bearings, generator bearings, etc. of a wind turbine generator set, or to clean bearings in other industries.

[0060] According to the embodiments of the present disclosure, by combining two electric lubrication pumps, a grease status monitoring sensor, an oil collection device, and a central controller to form an online cleaning system, the functions of intelligent online cleaning of bearings and automatic grease filling are realized, and the system also has temperature monitoring and remote alarm functions.

[0061] Figure 2 is a flow chart of a bearing cleaning method according to an embodiment of the present disclosure. Figure 2 The bearing cleaning method shown can be executed by, for example, a central controller of a wind turbine generator set to clean the main bearing. However, the present disclosure is not limited thereto, and the bearing cleaning method can also be used to clean bearings in other equipment.

[0062] Reference Figure 2 In step S201, the first lubrication pump is controlled to add a cleaning agent to the bearing, wherein the first lubrication pump is used to pre-load a specific amount of cleaning agent according to the bearing type. The cleaning agent can be pre-loaded into the first lubrication pump manually or automatically according to the dosage corresponding to the type of bearing to be cleaned. The user can send a bearing cleaning instruction to the controller used to control the first lubrication pump, so that the controller enters the bearing cleaning mode and controls the first lubrication pump to add the cleaning agent to the bearing online.

[0063] In step S202, it is determined whether the first lubrication pump satisfies the condition for stopping the injection of cleaning agent into the bearing. For example, the condition may include at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration threshold. The preset concentration threshold may be designed differently according to actual conditions. One of the above conditions may be used as a condition for stopping the injection of cleaning agent into the bearing, or the above two conditions may be combined to determine whether the first lubrication pump should stop injecting cleaning agent into the bearing. Or. Different priorities may be assigned to the above conditions, for example, the priority of the condition that the first lubrication pump triggers a low oil level signal of the cleaning agent is higher than the priority of the condition that the pollutant concentration of the discharged waste grease meets the preset concentration threshold. That is, when the condition that the first lubrication pump triggers a low oil level signal of the cleaning agent is met, the injection of cleaning agent into the bearing may be stopped even if the pollutant concentration of the discharged waste grease meets the preset concentration threshold is not met, however, the above examples are only exemplary, and the present disclosure is not limited thereto.

[0064] In step S203, in response to the first lubrication pump meeting the condition for stopping adding cleaning agent to the bearing, the first lubrication pump is controlled to stop adding cleaning agent to the bearing and the second lubrication pump is controlled to add lubricant to the bearing, wherein the second lubrication pump is used to pre-load a specific amount of lubricant for the bearing type.

[0065] As an example, when the first lubrication pump triggers a low oil level signal of the cleaning agent, the first lubrication pump may be controlled to stop adding the cleaning agent to the bearing and the second lubrication pump may be controlled to add the lubricant to the bearing.

[0066] As another example, before controlling the first lubrication pump to stop adding cleaning agent to the bearing based on a low oil level signal of the cleaning agent, when the pollutant concentration meets a preset concentration threshold, the first lubrication pump can be controlled to stop adding cleaning agent to the bearing and the second lubrication pump can be controlled to add lubricant to the bearing.

[0067] During the process of the second lubrication pump adding lubricant to the bearing, the controller can monitor whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant can indicate whether the lubricant in the second lubrication pump has reached an amount that cannot operate normally. In response to receiving the low oil level signal of the lubricant, the second lubrication pump can be controlled to stop adding lubricant to the bearing.

[0068] When the first lubrication pump does not meet the condition for stopping adding the cleaning agent to the bearing, the first lubrication pump can be controlled to continue adding the cleaning agent to the bearing.

[0069] In addition, when the first lubrication pump adds cleaning agent to the bearing, the cleaning agent outputted from the first lubrication pump can be evenly added to the bearing in a quantitative manner through the first distributor. When the second lubrication pump adds lubricant to the bearing, the lubricant outputted from the second lubrication pump can be evenly added to the bearing in a quantitative manner through the second distributor. In this way, as the bearing runs, the cleaning agent or lubricant can be evenly added to the inside of the bearing to better clean the bearing and avoid local accumulation of excessive cleaning agent or lubricant to waste material costs.

[0070] During the bearing cleaning process, the bearing temperature collected by the bearing temperature sensor can also be obtained in real time. When the bearing temperature reaches a preset temperature, the controller can send an early warning signal to the user, wherein the early warning signal can inform the user that the current temperature of the bearing is too high, so that the user can determine whether to shut down the machine according to the current temperature of the bearing. Alternatively, when the bearing temperature reaches a preset temperature, the controller can automatically stop the operation of the device to protect the device.

[0071] Figure 3 is a flow chart of a method for filling a bearing cleaning agent according to an embodiment of the present disclosure. Figure 3 The bearing cleaning agent filling method shown can be executed by a controller. For example, the main controller of the wind turbine generator set can be based on Figure 3 The method is used to clean the main bearings, yaw bearings, etc. of the wind turbine generator set.

[0072] Reference Figure 3 In step S301, according to the bearing cleaning instruction, the bearing cleaning mode is entered. At this time, the first lubrication pump pre-loaded with cleaning agent can be started. The cleaning agent can be pre-loaded into the first lubrication pump manually or automatically according to the dosage corresponding to the type of bearing to be cleaned.

[0073] For example, a bearing cleaning instruction may be issued by a user by clicking a button on the controller. Optionally, the controller may periodically enter a bearing cleaning mode.

[0074] In step S302, it is determined whether the low oil level of the first lubrication pump is triggered. The first lubrication pump can monitor whether the cleaning agent reaches the low oil level.

[0075] When the cleaning agent in the first lubrication pump reaches a low oil level, the first lubrication pump triggers a low oil level signal and sends the signal to the controller. The controller can stop the first lubrication pump from adding cleaning agent to the bearing in response to the low oil level signal.

[0076] When the cleaning agent in the first lubrication pump does not reach the low oil level, step S303 may be entered to determine whether the pollutant concentration of the waste grease discharged during the cleaning process of the bearing reaches a preset concentration threshold. Here, the preset concentration threshold may be designed differently according to actual conditions. The pollutant concentration of the waste grease may be detected by a grease state monitoring sensor, and a corresponding signal may be sent to the controller according to whether the pollutant concentration of the waste grease reaches the preset concentration threshold.

[0077] When the pollutant concentration reaches a preset concentration threshold, the controller may control the first lubrication pump to stop adding cleaning agent to the bearing, otherwise the process may enter step S302 to continue monitoring whether a low oil level of the first lubrication pump is triggered.

[0078] According to the embodiments of the present disclosure, online cleaning of the bearing can be achieved.

[0079] Figure 4 is a flow chart of a bearing lubricant filling method according to an embodiment of the present disclosure. Figure 4 The bearing lubricant filling method shown can be executed by a controller. For example, the main controller of the wind turbine generator set can be based on Figure 4 The method is used to achieve lubrication operations on the main bearings, yaw bearings, etc. of the wind turbine generator set.

[0080] Reference Figure 4 In step S401, a second lubrication pump pre-filled with lubricant may be started and controlled to add lubricant to the bearing. The lubricant may be pre-filled into the second lubrication pump manually or automatically according to a dosage corresponding to the type of bearing to be lubricated.

[0081] As an example, when the controller stops the first lubrication pump from filling the bearing with cleaning agent, the second lubrication pump may be started to add lubricant to the bearing. As another example, the second lubrication pump may be started periodically to add lubricant to the bearing.

[0082] In step S402, it is determined whether the low oil level of the second lubrication pump is triggered. The second lubrication pump can monitor whether the lubricant reaches a low oil level.

[0083] When the lubricant in the second lubrication pump reaches a low oil level, the second lubrication pump triggers a low oil level signal and sends the signal to the controller. The controller may stop the second lubrication pump from adding lubricant to the bearing in response to the low oil level signal. Otherwise, the second lubrication pump may continue to add lubricant to the bearing until the low oil level is triggered.

[0084] Since a certain amount of lubricant is added to the second lubrication pump in advance according to the bearing type, accordingly, when the low oil level of the lubricant of the second lubrication pump is reached, it can be indicated that a suitable amount of lubricant has been added to the bearing, thereby avoiding waste of lubricant.

[0085] Figure 3 and Figure 4 The method shown can be used as an independent solution to realize online cleaning of bearings and automatic filling of lubricants respectively.

[0086] Figure 5 The present invention is a flow chart of a method for monitoring the temperature of a bearing during cleaning according to an embodiment of the present invention. Figure 5 The bearing cleaning process temperature monitoring method shown can be executed by a controller. For example, the main controller of the wind turbine generator set can be based on Figure 5 The method is used to realize temperature monitoring during the bearing cleaning process.

[0087] Reference Figure 5 In step S501, according to the bearing cleaning instruction, a bearing cleaning mode is entered. The bearing cleaning mode may include adding a cleaning agent and a lubricant to the bearing.

[0088] In step S502, the operating temperature of the bearing can be continuously monitored and the temperature signal can be transmitted to the controller. Here, a strong magnetic bearing temperature sensor can be used to detect the bearing temperature in real time and send the detected temperature to the controller.

[0089] In step S503, the controller determines whether the bearing operating temperature exceeds a preset temperature. Here, the preset temperature may be set to 75 degrees, but is not limited thereto.

[0090] When the bearing operating temperature does not exceed the preset temperature, the controller may continue to use the bearing temperature sensor to monitor the bearing temperature. When the bearing operating temperature exceeds the preset temperature, in step S504, the controller may send a warning signal to the user to inform the user that the current bearing temperature is too high, so that the user can determine whether to perform stop processing.

[0091] As another example, during the operation of the wind turbine generator set, the controller may receive a temperature signal of the bearing from a bearing temperature sensor in real time to monitor the current temperature of the bearing in real time.

[0092] Figure 6 is a block diagram of a bearing cleaning device according to an embodiment of the present disclosure.

[0093] Reference Figure 6, the bearing cleaning device 600 may include a control module 601, a monitoring module 602, a concentration detection module 603, a temperature detection module 604, a first allocation module 605, and a second allocation module 606. Each module in the bearing cleaning device 600 may be implemented by one or more modules, and the name of the corresponding module may vary according to the type of module. In various embodiments, some modules in the bearing cleaning device 600 may be omitted, or additional modules may be included. In addition, the modules / elements according to various embodiments of the present disclosure may be combined to form a single entity, and thus the functions of the corresponding modules / elements before the combination may be equivalently performed.

[0094] In response to receiving the bearing cleaning instruction, the control module 601 can control the first lubrication pump to add cleaning agent to the bearing, wherein the first lubrication pump can be pre-loaded with a specific amount of cleaning agent for the bearing type, and the low oil level of the cleaning agent can be pre-set according to the condition of meeting the bearing cleaning standard (i.e., determining whether the bearing cleaning degree meets the standard). In this way, when the cleaning agent of the first lubrication pump reaches the low oil level, it can be indicated that a suitable amount of cleaning agent has been added to the bearing, and the bearing cleaning standard has been met.

[0095] The monitoring module 602 can determine whether the first lubrication pump meets the condition for stopping the injection of the cleaning agent into the bearing. The condition can include at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; and the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration.

[0096] As an example, when the first lubrication pump triggers a low oil level signal of the cleaning agent, the control module 601 may control the first lubrication pump to stop adding cleaning agent to the bearing and control the second lubrication pump to add lubricant to the bearing. Before the control module 601 controls the first lubrication pump to stop adding cleaning agent to the bearing based on the low oil level signal of the cleaning agent, when the pollutant concentration meets the preset concentration, the control module 601 may control the first lubrication pump to stop adding cleaning agent to the bearing and control the second lubrication pump to add lubricant to the bearing.

[0097] The concentration detection module 603 can continuously monitor the concentration of particles in the waste grease discharged from the bearing, and convert it into an electrical signal and feed it back to the control module 601. The concentration detection module 603 can be implemented by a grease state monitoring sensor.

[0098] In response to the first lubrication pump meeting the condition for stopping the injection of cleaning agent into the bearing, the control module 601 may control the first lubrication pump to stop injecting cleaning agent into the bearing and control the second lubrication pump to inject lubricant into the bearing. The second lubrication pump may be pre-loaded with a specific amount of lubricant for the bearing type, and the low oil level of the lubricant may be pre-set based on the condition for the normal operation of the bearing (i.e., determining whether the injected lubricant can ensure the normal operation of the bearing). In this way, when the lubricant of the second lubrication pump reaches the low oil level, it may indicate that a suitable amount of lubricant has been added to the bearing, and the bearing may operate normally on the basis of the injected lubricant.

[0099] The monitoring module 602 may monitor whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump reaches an amount that causes the second lubrication pump to fail to operate normally.

[0100] In response to receiving the low oil level signal of the lubricant, the control module 601 may control the second lubrication pump to stop adding lubricant to the bearing.

[0101] The control module 601 and the monitoring module 602 may be implemented by one controller or may be implemented by two different controllers.

[0102] The first distribution module 605 can uniformly add the cleaning agent output from the first lubrication pump to the bearing in a quantitative manner, and the second distribution module 606 can uniformly add the lubricant output from the second lubrication pump to the bearing in a quantitative manner. In this way, it is possible to avoid the accumulation of cleaning agent or lubricant at a certain position of the bearing, thereby causing waste of materials. The first distribution module 605 and the second distribution module 66 can be implemented by the same type or different types of distributors.

[0103] The temperature detection module 604 may acquire the temperature of the bearing and send the acquired temperature to the control module 601. The temperature detection module 604 may be implemented by a temperature sensor.

[0104] In response to the bearing operating temperature reaching a preset temperature, the control module 604 may send an early warning signal, wherein the early warning signal may indicate that the current temperature of the bearing is too high, so as to warn the user whether to continue to operate the wind turbine generator set.

[0105] The bearing cleaning device disclosed in the present invention can be applied to the online cleaning and automatic filling of lubricants for the main bearings, yaw bearings, pitch bearings, generator bearings of wind turbine generator sets and bearings in other industries.

[0106] According to an embodiment of the present disclosure, an electronic device may be provided. Figure 7It is a block diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 700 may include at least one memory 702 and at least one processor 701. The at least one memory 702 stores a set of computer executable instructions. When the computer executable instruction set is executed by the at least one processor 701, the bearing cleaning method according to the embodiment of the present disclosure is executed.

[0107] Processor 701 may include a central processing unit (CPU), a graphics processing unit (GPU), a programmable logic device, a dedicated processor system, a microcontroller or a microprocessor. As an example and not limitation, processor 701 may also include an analog processor, a digital processor, a microprocessor, a multi-core processor, a processor array, a network processor, etc.

[0108] The memory 702 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module, a bearing cleaning program, and a database.

[0109] The memory 702 may be integrated with the processor 701, for example, RAM or flash memory may be arranged within an integrated circuit microprocessor or the like. In addition, the memory 702 may include a separate device, such as an external disk drive, a storage array, or any other storage device that can be used by a database system. The memory 702 and the processor 701 may be operationally coupled, or may communicate with each other, such as through an I / O port, a network connection, etc., so that the processor 701 can read files stored in the memory 702.

[0110] In addition, the electronic device 700 may further include a video display (such as a liquid crystal display) and a user interaction interface (such as a keyboard, a mouse, a touch input device, etc.) All components of the electronic device 700 may be connected to each other via a bus and / or a network.

[0111] Those skilled in the art will understand that Figure 7 The structures shown in the drawings do not constitute limitations of the drawings and may include more or less components than shown in the drawings, or combine certain components, or arrange the components differently.

[0112] According to an embodiment of the present disclosure, a computer-readable storage medium storing instructions may also be provided, wherein when the instructions are executed by at least one processor, the at least one processor is prompted to execute the bearing cleaning method according to the present disclosure. Examples of computer-readable storage media here include: read-only memory (ROM), random access programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, non-volatile memory, CD-ROM, CD-R, CD+R, CD-RW, CD+RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, BD-ROM, BD-R, BD-R LTH, BD-RE, Blu-ray or optical disk storage, hard disk drive (HDD), solid state drive (SSD), card storage (such as, multimedia card, secure digital (SD) card or extreme digital (XD) card), magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk and any other device, any other device is configured to store computer programs and any associated data, data files and data structures in a non-transitory manner and provide the computer programs and any associated data, data files and data structures to a processor or computer so that the processor or computer can execute the computer program. The computer program in the above-mentioned computer-readable storage medium can be run in an environment deployed in a computer device such as a client, a host, an agent device, a server, etc. In addition, in one example, the computer program and any associated data, data files and data structures are distributed on a networked computer system, so that the computer program and any associated data, data files and data structures are stored, accessed and executed in a distributed manner by one or more processors or computers.

[0113] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0114] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A bearing cleaning method, characterized in that: The bearing cleaning method comprises: In response to receiving a bearing cleaning instruction, controlling a first lubrication pump to add a cleaning agent to the bearing, wherein the first lubrication pump is used to pre-load a specific amount of cleaning agent for a bearing type; Determine whether the first lubrication pump meets the condition for stopping the injection of cleaning agent into the bearing, wherein the condition includes at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration; In response to the first lubrication pump meeting a condition for stopping the injection of cleaning agent into the bearing, the first lubrication pump is controlled to stop injecting cleaning agent into the bearing and the second lubrication pump is controlled to inject lubricant into the bearing.

2. The bearing cleaning method according to claim 1, characterized in that: When the first lubrication pump triggers a low oil level signal of the cleaning agent, the first lubrication pump is controlled to stop adding the cleaning agent to the bearing and the second lubrication pump is controlled to add the lubricant to the bearing, Before controlling the first lubrication pump to stop adding cleaning agent to the bearing based on a low oil level signal of the cleaning agent, when the pollutant concentration meets a preset concentration, controlling the first lubrication pump to stop adding cleaning agent to the bearing and controlling the second lubrication pump to add lubricant to the bearing.

3. The bearing cleaning method according to claim 1, characterized in that: The second lubrication pump is used to pre-load a specific amount of lubricant according to the bearing type, and controlling the second lubrication pump to add lubricant to the bearing includes: monitoring whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump reaches an amount that makes it unable to operate normally; In response to receiving a low oil level signal of the lubricant, the second lubrication pump is controlled to stop adding lubricant to the bearing.

4. The bearing cleaning method according to claim 1, characterized in that: The controlling the first lubrication pump to add cleaning agent to the bearing comprises: The cleaning agent output from the first lubrication pump is uniformly added to the bearing in a quantitative manner through a first distributor; and The controlling the second lubrication pump to add lubricant to the bearing comprises: The lubricant output from the second lubrication pump is uniformly added to the bearing in a quantitative manner through a second distributor.

5. The bearing cleaning method according to any one of claims 1 to 4, characterized in that: The bearing cleaning method further comprises: Obtaining the temperature of the bearing collected by the bearing temperature sensor, In response to the temperature reaching a preset temperature, an early warning signal is sent, wherein the early warning signal is used to indicate that the current temperature of the bearing is too high.

6. The bearing cleaning method according to any one of claims 1 to 4, characterized in that: The bearing includes any one of the following: a yaw bearing, a pitch bearing, a generator bearing and a main bearing of a wind turbine generator set.

7. A bearing cleaning system, characterized in that: The bearing cleaning system comprises: a first lubrication pump, a second lubrication pump, and a controller, wherein the first lubrication pump and the second lubrication pump are respectively connected to the controller for communication, wherein: The first lubrication pump is configured to be pre-loaded with a specific amount of cleaning agent according to the bearing type; The second lubrication pump is configured to be pre-loaded with a specific amount of lubricant according to the bearing type; and The controller is configured to: In response to receiving a bearing cleaning instruction, controlling the first lubrication pump to inject a cleaning agent into the bearing; Determine whether the first lubrication pump meets the condition for stopping the injection of cleaning agent into the bearing, wherein the condition includes at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration; In response to the first lubrication pump meeting a condition for stopping the injection of cleaning agent into the bearing, the first lubrication pump is controlled to stop injecting cleaning agent into the bearing and the second lubrication pump is controlled to inject lubricant into the bearing.

8. The bearing cleaning system according to claim 7, characterized in that: The bearing cleaning system also includes: A grease condition monitoring sensor is communicatively connected to the controller and is configured to: detecting the pollutant concentration of the waste grease discharged during the cleaning process of the bearing, and sending a cleaning end instruction to the controller when the pollutant concentration meets a preset concentration, Wherein, the controller is configured as follows: if the cleaning end instruction is received before the first lubrication pump is controlled to stop adding cleaning agent to the bearing based on a low oil level signal of the cleaning agent, the first lubrication pump is controlled to stop adding cleaning agent to the bearing based on the cleaning end instruction and the second lubrication pump is controlled to add lubricant to the bearing.

9. The bearing cleaning system according to claim 7, characterized in that: The bearing cleaning system also includes: a bearing temperature sensor configured to detect a temperature of the bearing and send the temperature of the bearing to the controller, The controller is configured to send an early warning signal in response to the temperature of the bearing reaching a preset temperature, wherein the early warning signal is used to indicate that the current temperature of the bearing is too high.

10. The bearing cleaning system according to claim 7, characterized in that: The controller is configured to: monitoring whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump reaches an amount that makes it unable to operate normally; In response to receiving a low oil level signal of the lubricant, the second lubrication pump is controlled to stop adding lubricant to the bearing.

11. The bearing cleaning system according to claim 7, characterized in that: The bearing cleaning system further comprises a first distributor and a second distributor, wherein the first distributor is connected to the first lubrication pump and the second distributor is connected to the second lubrication pump, The first distributor is configured to uniformly add the cleaning agent output from the first lubrication pump to the bearing in a quantitative manner, and The second distributor is configured to uniformly add lubricant output from the second lubrication pump to the bearing in a quantitative manner.

12. The bearing cleaning system according to claim 11, characterized in that: The bearing cleaning system also includes a three-way pipe fitting, The first end of the three-way pipe fitting is connected to the output pipeline of the first distributor, the second end of the three-way pipe fitting is connected to the output pipeline of the second distributor, and the third end of the three-way pipe fitting is connected to the lubrication point of the bearing mounting seat, wherein the cleaning agent and lubricant are filled into the bearing through the third end.

13. The bearing cleaning system according to claim 7, characterized in that: The bearing includes any one of the following: a yaw bearing, a pitch bearing, a generator bearing and a main bearing of a wind turbine generator set.

14. A bearing cleaning device, characterized in that: The bearing cleaning device comprises: a control module configured to control a first lubrication pump to add a cleaning agent to the bearing in response to receiving a bearing cleaning instruction, wherein the first lubrication pump is used to pre-load a specific amount of cleaning agent for a bearing type; The monitoring module is configured to determine whether the first lubrication pump meets a condition for stopping the injection of cleaning agent into the bearing, wherein the condition includes at least one of the following: the first lubrication pump triggers a low oil level signal of the cleaning agent, wherein the low oil level signal of the cleaning agent indicates whether the cleaning agent in the first lubrication pump reaches a specified amount; the pollutant concentration of the waste grease discharged during the cleaning process of the bearing meets a preset concentration, The control module is further configured to control the first lubrication pump to stop injecting cleaning agent into the bearing and control the second lubrication pump to inject lubricant into the bearing in response to the first lubrication pump meeting a condition for stopping injecting cleaning agent into the bearing.

15. The bearing cleaning device according to claim 14, characterized in that: When the first lubrication pump triggers a low oil level signal of the cleaning agent, the control module is configured to control the first lubrication pump to stop adding cleaning agent to the bearing and control the second lubrication pump to add lubricant to the bearing. Before the control module controls the first lubrication pump to stop adding cleaning agent to the bearing based on the low oil level signal of the cleaning agent, when the pollutant concentration meets the preset concentration, the control module controls the first lubrication pump to stop adding cleaning agent to the bearing and controls the second lubrication pump to add lubricant to the bearing.

16. The bearing cleaning device according to claim 14, characterized in that: The second lubrication pump is used to pre-fill a specific amount of lubricant for the bearing type, The monitoring module is configured to monitor whether the second lubrication pump triggers a low oil level signal of the lubricant, wherein the low oil level signal of the lubricant indicates whether the lubricant in the second lubrication pump reaches an amount that cannot work normally, The control module is configured to control the second lubrication pump to stop filling the bearing with lubricant in response to receiving a low oil level signal of the lubricant.

17. The bearing cleaning device according to claim 14, characterized in that: The bearing cleaning device further comprises a first distribution module and a second distribution module. The first distribution module uniformly adds the cleaning agent output from the first lubrication pump to the bearing in a quantitative manner, and The second distribution module uniformly adds the lubricant output from the second lubrication pump to the bearing in a quantitative manner.

18. The bearing cleaning device according to any one of claims 14 to 17, characterized in that: The bearing cleaning device further comprises a temperature detection module configured to obtain the temperature of the bearing. The control module is configured to send an early warning signal in response to the temperature reaching a preset temperature, wherein the early warning signal is used to indicate that the current temperature of the bearing is too high.

19. The bearing cleaning device according to any one of claims 14 to 17, characterized in that: The bearing includes any one of the following: a yaw bearing, a pitch bearing, a generator bearing and a main bearing of a wind turbine generator set.

20. An electronic device, characterized in that: include: at least one processor; at least one memory storing computer executable instructions, Wherein, when the computer executable instructions are executed by the at least one processor, the at least one processor is prompted to execute the bearing cleaning method according to any one of claims 1 to 6.

21. A computer-readable storage medium storing instructions, characterized in that: When the instructions are executed by at least one processor, the at least one processor is prompted to perform the bearing cleaning method according to any one of claims 1 to 6.

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