An anti-wear self-repairing agent and its application on wind turbine gears and bearings

Abstract

The present application relates to the technical field of self-repairing agents, and discloses an anti-wear self-repairing agent and its application on wind turbine gears and bearings, including the following components: a metal-ceramic composite powder, which is composed of a metal component and a ceramic component, wherein the metal component includes at least one of aluminum, titanium, and silicon, and the ceramic component includes at least one of aluminum oxide and silicon oxide; a carrier oil, which is selected from mineral oil, synthetic oil, or high-performance grease; an active catalyst, which is selected from at least one of chromium, molybdenum, and tungsten; a surfactant, which is selected from at least one of fatty alcohol polyoxyethylene ether and phosphate ester; and a reaction accelerator, which is selected from at least one of fluoride and chloride. The present invention adopts the combination of metal-ceramic composite powder and carrier oil, and accelerates the repair reaction through an active catalyst, so as to achieve a rapid and continuous self-repairing function during the friction process.

Description

Technical Field

[0001] The invention relates to the technical field of self-repairing agents, in particular to an anti-wear self-repairing agent and application thereof to gears and bearings of wind turbine generator sets. Background Art

[0002] With the continuous development of modern mechanical equipment, especially the widespread application of high-load, high-speed mechanical equipment such as wind turbines, the problems of equipment wear, corrosion and aging are becoming increasingly serious. Friction and wear are one of the main causes of mechanical failure, energy waste and equipment failure, especially in key components such as gearboxes and bearings. How to effectively reduce friction, control wear and increase the service life of mechanical parts has become a core issue that needs to be solved in the field of mechanical engineering.

[0003] In the prior art, the commonly used solution is to use anti-wear agents and lubricants to reduce friction and extend the life of mechanical equipment. Anti-wear agents can reduce the friction coefficient, thereby slowing down the wear of equipment components. However, these traditional anti-wear lubricants are usually unable to effectively repair the wear damage caused by friction during the operation of the equipment. Therefore, the equipment is still prone to failure during high-load and high-speed operation. In addition, traditional lubricants and anti-wear agents have poor performance in high-temperature environments and are prone to degradation, which deteriorates the working environment of the equipment and even affects the overall operating efficiency.

[0004] The main drawback of the prior art is the lack of a lubrication system that can actively repair wear. Traditional anti-wear agents can only reduce friction to a certain extent, but cannot achieve self-repair and recovery for worn parts. Therefore, how to use an innovative technical solution to not only effectively reduce friction, but also dynamically repair worn parts through a self-repair mechanism, thereby improving the reliability of equipment and extending its service life, has become an important challenge in current technology. The present invention proposes a new solution to this problem, using self-repair technology to achieve automatic repair of wear during the friction process, effectively solving the problem that traditional technology cannot effectively repair wear during high-load and high-speed operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an anti-wear self-repairing agent and its application in wind turbine gears and bearings. Traditional lubricants and anti-wear agents cannot effectively repair the wear that has occurred during high-load and high-speed operation.

[0006] To achieve the above objectives, the present invention is implemented by the following technical scheme: an anti-wear self-repairing agent, comprising the following components: The metal-ceramic composite powder is composed of a metal component and a ceramic component, wherein the metal component includes at least one of aluminum, titanium, and silicon, and the ceramic component includes at least one of aluminum oxide and silicon oxide; Carrier oil, selected from mineral oil, synthetic oil or high-performance grease; An active catalyst selected from at least one of chromium, molybdenum and tungsten; A surfactant selected from at least one of fatty alcohol polyoxyethylene ether and phosphate ester; A reaction accelerator, selected from at least one of fluoride and chloride; Among them, the mass ratio of the metal-ceramic composite powder is 50%-80%, the mass ratio of the carrier oil is 10%-30%, the mass ratio of the active catalyst is 1%-5%, the mass ratio of the surfactant is 1%-3%, and the mass ratio of the reaction accelerator is 0.5%-2%.

[0007] Preferably, the metal-ceramic composite powder comprises composite particles of aluminum powder and aluminum oxide powder, and the mass ratio of the aluminum powder to the aluminum oxide powder is 2:1.

[0008] Preferably, the carrier oil is a synthetic oil, and the synthetic oil is a poly-α-olefin oil.

[0009] Preferably, the active catalyst is a molybdenum compound.

[0010] Preferably, the surfactant is fatty alcohol polyoxyethylene ether, and the molecular weight of the fatty alcohol polyoxyethylene ether is 400-800.

[0011] Preferably, the reaction accelerator is calcium chloride.

[0012] A method for applying gears and bearings of a wind turbine generator set, wherein the self-repairing agent is added into the lubricating oil of a gear box of the wind turbine generator set, so that the gears and bearings can achieve self-repairing during operation.

[0013] Preferably, the amount of the anti-wear self-repairing agent added is 0.5%-5% of the total mass of the lubricating oil.

[0014] Preferably, the wind turbine generator set is a wind turbine generator set with a rated power of 1.5 MW.

[0015] Preferably, the gearbox and bearings of the wind turbine generator set have a temperature range of 40° C. to 150° C. and a load range of 500N to 5000N during operation.

[0016] The present invention provides an anti-wear self-repairing agent and its application in wind turbine gears and bearings. It has the following beneficial effects: 1. The present invention combines metal-ceramic composite powder with carrier oil and accelerates the repair reaction through an active catalyst, achieving a rapid and continuous self-repairing function during the friction process. Compared with the technical solutions in the prior art that only rely on traditional lubricating oil or a single repair agent, the present invention can effectively compensate for the wear of the friction pair in a short time and form a hard metal-ceramic protective layer, thereby significantly extending the service life of mechanical parts.

[0017] 2. The present invention generates a metal ceramic protective layer by reacting the metal ceramic composite powder with the friction pair surface, thereby reducing the friction coefficient and improving the thermal stability and wear resistance of the equipment. Compared with the prior art that does not fully consider the temperature rise problem caused by the long-term operation of the friction pair, the present invention solves the failure problem caused by friction overheating under high load and high temperature operation, thereby improving the stability and safety of the equipment.

[0018] 3. The anti-wear self-repairing agent of the present invention can reduce energy loss during friction and reduce the burden on equipment. Compared with the prior art maintenance method of only adding lubricants or replacing parts, the present invention can significantly reduce energy waste and extend the service life of parts through the self-repairing function, thereby reducing the operation and maintenance costs of equipment and achieving the effect of energy saving and consumption reduction.

[0019] 4. The anti-wear self-repairing agent used in the present invention does not contain harmful substances and has good environmental adaptability, and can stably function in harsh working environments such as wind turbines. Compared with the situation in which some repairing agents in the prior art may contain pollutants or are not suitable for high temperature and high pressure environments, the present invention solves the problems of poor environmental adaptability and high resource consumption in the prior art, and has the advantages of being more environmentally friendly and sustainable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the method flow of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please refer to the attached Figure 1 The embodiment of the present invention provides an anti-wear self-repairing agent and its application on wind turbine gears and bearings, including: Selection and function of metal-ceramic composite powder: As the core component of the self-healing agent, the metal-ceramic composite powder determines the hardness, wear resistance and self-healing efficiency of the repair agent. According to the design of this technical solution, the metal-ceramic composite powder includes a composite of metal components (such as aluminum, titanium, silicon, etc.) and ceramic components (such as aluminum oxide, silicon oxide, etc.).

[0023] Metal components: Metal powder has strong wear resistance, corrosion resistance and good thermal conductivity during the friction process. The introduction of metal powder can increase the reaction rate of the repair agent and promote the repair of the metal friction surface.

[0024] Ceramic components: Ceramic materials have extremely high hardness and stability. During the friction process, ceramic components can quickly form a protective layer with higher hardness, effectively reduce the friction coefficient, and provide good anti-wear protection for friction parts.

[0025] During the friction process, the metal-ceramic composite powder can react with the friction surface to form a hard and smooth metal-ceramic protective layer. This layer has a high hardness and a low friction coefficient, which can effectively reduce the heat and wear during the friction process. Specifically, the heat generated by friction will trigger a chemical reaction between the metal component and the ceramic component to generate a metal-ceramic composite material. These materials have good thermal stability and can maintain a good repair effect in a high temperature environment.

[0026] The role of the carrier oil is to act as a solvent to disperse the powder components in the self-healing agent in the lubricating oil and ensure its uniform distribution, thereby preventing the powder components from settling in the lubricating oil. Synthetic oil and mineral oil are commonly used carrier oils, among which synthetic oil is more suitable for high-load and high-temperature working environments such as wind turbines due to its high thermal stability and lubricity.

[0027] By providing lubrication, the carrier oil reduces direct friction on the surface of mechanical parts and reduces the wear rate of the friction pair. At the same time, the dispersant in the carrier oil can maintain the uniform distribution of the metal-ceramic composite powder, preventing it from agglomerating and forming an uneven protective layer on the friction surface. By directly contacting the surface of the friction pair, the carrier oil can also help accelerate the repair reaction, allowing the metal-ceramic composite powder to repair the worn parts more quickly.

[0028] Selection and function of active catalyst: The function of active catalyst is to promote the rapid reaction of repair agent on the friction pair surface, reduce the activation energy of reaction, and thus increase the rate of repair reaction. Commonly used active catalysts include transition metal compounds such as molybdenum, chromium, and tungsten, which have strong catalytic ability and can accelerate the reaction rate between metal and ceramic particles.

[0029] The introduction of active catalysts can promote chemical reactions between the components of the repair agent under the high temperature environment of the friction pair. For example, molybdenum as a catalyst can accelerate the bonding process between metal and ceramic powders, promote the change of the metal surface microstructure under the high temperature conditions generated by friction, and thus form a more solid ceramic protective layer. The use of catalysts not only increases the speed of the repair reaction, but also ensures thermal stability during the repair process, making the repair effect more durable.

[0030] The role of surfactant is to improve the adhesion and dispersibility between the repair agent and the friction surface. It can improve the dispersion state of the repair agent powder in the lubricating oil, avoid the agglomeration of the repair agent particles, and ensure that the repair agent remains evenly distributed in the lubricating oil.

[0031] The introduction of surfactants improves the dispersibility of repair agent particles in oil by changing the surface tension between the repair agent powder and the lubricating oil, so that they are evenly coated on the friction surface during the friction process to form a stable repair layer. Its molecular structure usually includes lipophilic groups and hydrophilic groups, which enables the surfactant to form a good interface between the lubricating oil and the friction surface, and effectively prevent the aggregation of powder, ensuring the good dispersibility of the repair agent.

[0032] The role of the reaction accelerator is to further accelerate the chemical reaction in the repair agent, especially under high temperature and high pressure friction conditions. Commonly used reaction accelerators include fluorides, chlorides, etc., which can increase the rate of the repair reaction at high temperatures.

[0033] Reaction accelerators (such as calcium chloride) enhance the bonding between metal and ceramic repair materials by forming a catalytic chloride layer on the surface of the friction pair. The mechanism of action of this accelerator is to reduce the temperature required for the reaction, promote the melting and sintering process between the ceramic layer and the metal matrix, and form a repair layer with higher strength and greater stability. It can not only increase the rate of the repair reaction, but also maintain a good repair effect in a high temperature environment.

[0034] Self-repairing mechanism: The self-repairing mechanism of this self-repairing agent is based on the local thermal effect and chemical reaction caused by friction work. Specifically, when the friction surface is subjected to mechanical load, the friction work generated is converted into local heat energy, which causes the temperature of the friction surface to rise rapidly, activating the reactive components in the repairing agent, especially the metal and ceramic particles in the metal-ceramic composite powder undergo sintering reaction at high temperature. This reaction forms a new metal-ceramic protective layer, fills the worn gap, and forms a surface structure that is harder and smoother than the original surface. As wear continues, the reactive substances in the repairing agent continue to repair the worn parts through this mechanism until the friction pair restores the optimal fit clearance.

[0035] Through the reasonable proportion and optimization of metal-ceramic composite powder, carrier oil, catalyst, surfactant and reaction accelerator, this technical solution can provide efficient anti-wear self-repair function in equipment such as wind turbines. During the friction process, the friction work is converted into heat energy, activating the reaction components in the repair agent to form a high-hardness metal-ceramic protective layer. The synergistic effect of each component makes the repair process faster and more stable, which can effectively extend the service life of the equipment and reduce maintenance costs.

[0036] Example 1: Preparation and application of self-repairing lubricating oil for wind turbine gearbox The gearbox lubricating oil in existing wind turbines usually uses traditional lubricants, but these lubricants are prone to failure under high load and high temperature operation and cannot provide sufficient self-repair function, resulting in accelerated wear of gearboxes and bearings and increasing equipment maintenance costs.

[0037] By introducing the anti-wear self-repairing agent of the present invention, the performance of the lubricating oil of the gear box of the wind turbine generator set is improved, the self-repair of the gear box and the bearing is achieved, the maintenance cost is reduced, and the life of the equipment is extended.

[0038] Implementation steps: Preparation of self-healing agent The anti-wear self-repairing agent was prepared according to the following formula: Metal-ceramic composite powder: The mass ratio of aluminum powder to alumina powder is 2:1, accounting for 60% of the total mass; Carrier oil: Choose poly-alpha-olefin synthetic oil, accounting for 25% of the total mass; Active catalyst: molybdenum compound, accounting for 5% of the total mass; Surfactant: fatty alcohol polyoxyethylene ether, molecular weight 500, accounting for 7% of the total mass; Reaction accelerator: calcium chloride, accounting for 3% of the total mass.

[0039] Mixing and uniform dispersion The metal-ceramic composite powder is fully mixed with the carrier oil and dispersed using a high shear homogenization device to ensure that the powder components are evenly distributed in the carrier oil to avoid precipitation.

[0040] Adding self-healing agents to lubricants Add the prepared anti-wear self-repairing agent to the lubricating oil of the wind turbine gearbox at a ratio of 3% (i.e. the mass of the self-repairing agent accounts for 3% of the total mass of the lubricating oil) to ensure that it is completely mixed before starting the unit.

[0041] Equipment operation and monitoring Start the wind turbine, monitor the working status of the gearbox and bearings (including temperature, vibration, load, etc.), monitor the performance of the lubricating oil in real time through sensors, and ensure that the self-repairing function of the repair agent plays a role during operation.

[0042] Process parameters: Mixing temperature: 40°C-60°C Mixing time of powder and oil: 15-30 minutes Homogenization shear rate: 5000-8000rpm Self-repairing agent addition amount: 2%-5% of the total mass of lubricating oil By using the anti-wear self-repairing agent of the present invention, the friction pair of the wind turbine gearbox lubricating oil can perform self-repair in real time during operation, which significantly reduces wear, improves the operating stability and safety of the equipment, solves the problem of failure of traditional lubricating oil under high load conditions, and extends the service life of the equipment.

[0043] Traditional lubricants used in the prior art often fail to prevent damage to the friction pair under high load and high temperature conditions, leading to premature failure of the equipment. The self-repairing lubricant of the present invention can automatically repair the friction surface during operation, reducing equipment downtime and maintenance costs, and significantly increasing the service life of the equipment.

[0044] This embodiment successfully improves the self-repairing function of the lubricating oil in the gearbox of the wind turbine generator set by introducing the anti-wear self-repairing agent of the present invention, significantly improves the operating stability and service life of the equipment, solves the common friction pair wear and overheating problems in the prior art, and reduces the equipment maintenance cost. Through reasonable formulation and process optimization, this embodiment demonstrates the practical application effect of the anti-wear self-repairing agent.

[0045] Example 2: Self-repair application of wind turbine bearings The bearing of a wind turbine is one of the key components. It faces complex working conditions such as high friction, wear and high temperature during high-speed operation. Traditional lubrication technology is usually unable to effectively cope with these challenges, resulting in fatigue damage on the bearing surface, which seriously affects the operating efficiency and reliability of the unit. To this end, the present invention proposes a lubricant with self-repairing function, which can achieve automatic repair on the bearing surface, reduce wear and extend service life.

[0046] This embodiment aims to apply the anti-wear self-repairing agent of the present invention to the lubrication of the bearings of a wind turbine generator set, to ensure that the bearings are continuously protected under high load and high temperature conditions, and to improve the operating efficiency and safety of the equipment.

[0047] Implementation steps: Preparation of self-healing agent: Prepare the self-healing agent according to the following formula: Metal-ceramic composite powder: titanium powder and alumina powder (mass ratio 1:2), total mass accounting for 65%; Carrier oil: mineral oil, accounting for 20% of the total mass; Active catalyst: molybdenum compound, accounting for 5% of the total mass; Surfactant: Phosphate, accounting for 6% of the total mass; Reaction accelerator: sodium chloride, accounting for 4% of the total mass.

[0048] Mixing and uniform dispersion: At a temperature of 40°C-50°C, fully mix the metal-ceramic composite powder with the carrier oil, and use a high shear homogenizer for efficient dispersion to ensure uniform distribution of the powder and prevent precipitation.

[0049] Add self-repairing agent: Add the self-repairing agent to the wind turbine bearing lubricant at a ratio of 2%, ensuring that it is completely mixed with the oil before using the lubricant.

[0050] Equipment startup and monitoring: Start the wind turbine generator set, monitor the temperature, vibration, load and other operating parameters of the bearing, and record the repair effect of the self-healing agent.

[0051] Process parameters: Mixing temperature: 40°C-50°C Mixing time: 15-25 minutes Shear rate: 5000-7000rpm Self-repairing agent addition amount: 2%-4% of the total mass of lubricating oil After using the self-repairing lubricant of the present invention, the bearings show a lower wear rate, the friction coefficient is significantly reduced during operation, the temperature is controlled within a safe range, and the bearing life is significantly extended.

[0052] Conventional lubricants in the prior art are difficult to effectively repair when the friction pair is severely worn, often resulting in the need to replace the bearings in advance. In contrast, the self-repairing lubricant of the present invention can immediately repair the bearings when they are slightly worn, thus avoiding aggravation of the wear and reducing equipment downtime.

[0053] This example successfully applies the anti-wear self-repairing agent to the lubrication of the bearings of the wind turbine generator set, significantly improving the self-repairing ability of the bearings and effectively reducing the wear and failure rate. Through reasonable formula design and process control, this example proves the practical application effect of the present invention in the wind turbine generator set, achieving the goal of extending the service life of the equipment and reducing maintenance costs.

[0054] Example 3: Application of self-repairing lubricant in gearbox of heavy machinery equipment In heavy machinery and equipment, the gearbox often faces severe friction and wear due to high-load operation. Especially under long-term high-load working conditions, traditional lubricants cannot effectively reduce wear, resulting in frequent equipment failures. The present invention proposes a lubricant with a self-repairing function, which can automatically repair the worn surface during the operation of the equipment, thereby significantly improving the service life of the gearbox. This embodiment uses the self-repairing lubricant of the present invention to enable the gearbox in heavy machinery and equipment to maintain good lubrication and repair effects under high-load conditions, improve the operating efficiency of the equipment, and reduce the cost of frequent maintenance.

[0055] The formula for preparing the self-healing agent is as follows: Metal-ceramic composite powder: titanium powder and alumina powder (mass ratio 1:1.5), total mass accounting for 60%; Carrier oil: poly-alpha-olefin synthetic oil, accounting for 30% of the total mass; Active catalyst: molybdenum compound, accounting for 5% of the total mass; Surfactant: polyether ester, accounting for 3% of the total mass; Reaction accelerator: calcium chloride, accounting for 2% of the total mass.

[0056] Mixing and uniform dispersion The metal-ceramic composite powder is mixed with the carrier oil through a high shear homogenization device to ensure that the powder is evenly dispersed, does not precipitate, and maintains a stable suspension state.

[0057] Lubricant Mixing Add the self-repairing agent to the gearbox and bearing lubricating oil of the wind turbine at a ratio of 3.5%. Make sure the self-repairing agent is fully mixed with the lubricating oil.

[0058] Equipment operation and monitoring Start the wind turbine generator set and monitor the operating status of the gearbox and bearings in real time, including temperature, vibration, wear, etc. Record the repair effect of the self-repairing agent on the gearbox and bearings to ensure that the repairing agent forms an effective protective layer on the surface of the gearbox and bearings.

[0059] Process parameters Mixing temperature: 40°C-55°C Mixing time: 10-20 minutes Shear rate: 5000-7000rpm Self-repairing agent addition amount: 3%-5% of the total mass of lubricating oil After the two key components (gearbox and bearing) were treated with self-repairing agents, the overall operating temperature of the wind turbine was stabilized, and the wear of the gearbox and bearings was effectively repaired. After four months of operation tests, the unit did not overheat or fail, the vibration level continued to remain within the normal range, and the equipment was in good operating condition.

[0060] In the prior art, the lubrication of the gearbox and bearings is usually performed independently, and asynchronous repair may result in some parts not being fully protected, or even an overall failure caused by a "weak part". Through the combined application solution of the present invention, the gearbox and bearings are synchronously repaired, improving the overall stability and operating life of the equipment.

[0061] This embodiment solves the problem of incomplete repair in traditional technology by jointly applying anti-wear self-repairing agents to lubricate and repair the gearbox and bearing of the wind turbine generator set. Through synchronous repair, the friction and wear of these two key components are effectively controlled, the service life of the equipment is extended, and the operating efficiency of the equipment is improved.

[0062] Example 4: Application in other mechanical equipment In addition to wind turbines, anti-wear self-repairing agents can also be applied to the lubrication systems of other mechanical equipment, especially high-load, high-speed equipment, such as mining machinery, steel metallurgical equipment, etc. During the operation of these equipment, the lubricating oil often fails due to continuous friction, which accelerates the wear of equipment parts. The self-repairing agent of the present invention can effectively repair the friction pair, extend the service life of the equipment, and reduce the frequency of shutdown maintenance.

[0063] This embodiment helps reduce the wear of equipment, prolongs the service life of mechanical equipment, improves the reliability of equipment operation, and reduces maintenance costs by adding the anti-wear self-repairing agent of the present invention to the lubricating oil of mining machinery.

[0064] Formula for preparing self-healing agent: Metal-ceramic composite powder: copper powder and copper oxide powder (mass ratio 3:2), total mass accounting for 60%; Carrier oil: synthetic oil, accounting for 25% of the total mass; Active catalyst: molybdenum compound, accounting for 5% of the total mass; Surfactant: amide alcohol polyoxyethylene ether, accounting for 6% of the total mass; Reaction accelerator: calcium chloride, accounting for 4% of the total mass.

[0065] Mixing and uniform dispersion Mix the above ingredients in proportion to ensure that the powder is evenly dispersed in the carrier oil, and use high shear homogenization equipment to process it to the required particle size.

[0066] Self-healing agent addition Add the prepared self-healing agent into the lubricating oil of mining machinery at a ratio of 5% to ensure thorough mixing.

[0067] Equipment operation and monitoring Start mining machinery and equipment, monitor the equipment's operating status, and evaluate the performance of the lubricant based on real-time data to ensure that the self-healing agent is effective.

[0068] Process parameters Mixing temperature: 50°C-70°C Mixing time: 30-45 minutes Shear rate: 6000-10000rpm Self-repairing agent addition amount: 4%-6% of the total mass of lubricating oil After applying the self-healing agent, the operating temperature, wear and energy consumption of mining machinery and equipment have been significantly improved, and the number of equipment failures has been greatly reduced.

[0069] Compared with traditional lubricants, lubricants with added self-healing agents can significantly extend the service life of equipment, reduce equipment wear and downtime, thereby improving production efficiency and reducing equipment maintenance costs.

[0070] This example demonstrates the application of the anti-wear self-repairing agent of the present invention in mining machinery and equipment. By adding the lubricating oil to which the self-repairing agent is added, the equipment life is successfully extended and the maintenance frequency is reduced, demonstrating the wide application potential of the present invention in high-load, high-speed machinery and equipment.

[0071] Comparative design 1: Comparative experiment on the amount of self-repairing agent added to gearbox lubricating oil 1.1 Existing technical solutions In the prior art, lubricants are usually not added with additives that have self-repairing functions, or if added, the amount of additives is relatively small, usually between 1% and 2%. The purpose is to reduce the cost of lubricants, but the self-repairing function is not fully utilized. Therefore, the repair effect of these lubricants is limited and cannot significantly improve the wear and temperature rise problems of gearboxes under high loads.

[0072] 1.2 Comparative design In this comparative experiment, we set the addition amount of the self-healing agent to a low ratio of 1% (compared to 4%-5% in the embodiment of the present invention), and the rest of the process is the same as the embodiment.

[0073] The formula of the self-healing agent: remains the same as in the example, the only change is that the amount of the self-healing agent added is 1%; Adding method: same as in the embodiment, directly add into the gearbox lubricating oil; Monitoring indicators: measure the temperature, vibration, lubrication effect, wear rate, etc. of the gearbox after operation.

[0074] 1.3 Results and Analysis Results: After adding 1% self-repairing agent, the temperature of the gearbox rises quickly, the wear repair effect is not obvious, and a slight overheating phenomenon occurs. Although there is a certain repair effect, its effect is far lower than the embodiment of the present invention with a 4%-5% addition amount, and the equipment temperature rises higher under the operating load, and the surface wear is more serious.

[0075] Comparative analysis: Through comparison, it can be seen that the self-repairing agent with too low an addition amount cannot effectively play a repairing role, resulting in more obvious wear of the gearbox and bearings. In contrast, the higher addition amount in the present invention can significantly improve the lubrication effect and repair performance, reduce the wear rate, and ensure the stable operation of the equipment under high load.

[0076] 2. Comparative design 2: Comparative experiment on the formulation of self-repairing agent in bearing lubricating oil 2.1 Existing technical solutions In the prior art, the formula of bearing lubricant is usually simple, with some basic anti-wear agents and additives added. Its main purpose is to reduce friction and increase lubrication, but it does not have a self-repairing function. Therefore, in long-term operation, the bearing is still prone to wear and failure.

[0077] 2.2 Comparative design In order to compare with the embodiment of the present invention, the formula of the self-healing agent was adjusted in this comparative experiment. The specific changes are as follows: Metal-ceramic composite powder: calcium oxide and aluminum powder (mass ratio 1:3), accounting for 45% of the total mass; Carrier oil: Use mineral oil instead of synthetic oil, accounting for 35% of the total weight; Active catalyst: molybdenum compound, accounting for 5% of the total mass; Surfactant: Low active surfactant, accounting for 5% of the total mass; Reaction accelerator: No accelerator was used.

[0078] 2.3 Results and Analysis After the lubricant with this formula was added to the bearing, the bearing temperature rose quickly during operation, the wear repair effect was poor, and slight wear debris appeared. The vibration of the bearing increased, and a uniform ceramic layer failed to form on the surface.

[0079] Compared with the self-repairing agent in the embodiment of the present invention, this formula has poor repair effect, too high temperature rise, and ineffective wear repair due to improper selection of carrier oil and uneven distribution of ceramic powder. Therefore, the present invention uses synthetic oil as carrier oil, as well as a specific proportion of highly active surfactants and accelerators, so that the self-repairing agent can better play a role in the friction process, form a solid ceramic protective layer, and achieve the best repair effect.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-wear self-repairing agent, characterized in that: Includes the following components: The metal-ceramic composite powder is composed of a metal component and a ceramic component, wherein the metal component includes at least one of aluminum, titanium, and silicon, and the ceramic component includes at least one of aluminum oxide and silicon oxide; Carrier oil, selected from mineral oil, synthetic oil or high-performance grease; An active catalyst selected from at least one of chromium, molybdenum and tungsten; A surfactant selected from at least one of fatty alcohol polyoxyethylene ether and phosphate ester; A reaction accelerator, selected from at least one of fluoride and chloride; Among them, the mass ratio of the metal-ceramic composite powder is 50%-80%, the mass ratio of the carrier oil is 10%-30%, the mass ratio of the active catalyst is 1%-5%, the mass ratio of the surfactant is 1%-3%, and the mass ratio of the reaction accelerator is 0.5%-2%.

2. The anti-wear self-repairing agent according to claim 1, characterized in that: The metal-ceramic composite powder includes composite particles of aluminum powder and aluminum oxide powder, and the mass ratio of the aluminum powder to the aluminum oxide powder is 2:

1.

3. The anti-wear self-repairing agent according to claim 1, characterized in that: The carrier oil is synthetic oil, and the synthetic oil is poly-α-olefin oil.

4. The anti-wear self-repairing agent according to claim 1, characterized in that: The active catalyst is a molybdenum compound.

5. The anti-wear self-repairing agent according to claim 1, characterized in that: The surfactant is fatty alcohol polyoxyethylene ether, and the molecular weight of the fatty alcohol polyoxyethylene ether is 400-800.

6. The anti-wear self-repairing agent according to claim 1, characterized in that: The reaction accelerator is calcium chloride.

7. An application method of wind turbine gears and bearings, characterized in that: The anti-wear self-repairing agent according to claim 1 or 2 is used, and by adding the self-repairing agent to the lubricating oil of the gearbox of the wind turbine generator set, the gears and bearings can achieve self-repair during operation.

8. The application method of the wind turbine generator gear and bearing according to claim 7, characterized in that: The amount of the anti-wear self-repairing agent added is 0.5%-5% of the total mass of the lubricating oil.

9. The method for applying a wind turbine generator set gear and bearing according to claim 7, characterized in that: The wind turbine generator set is a wind turbine generator set with a rated power of 1.5 MW.

10. The application method of a wind turbine generator set gear and bearing according to claim 7, characterized in that: The gearbox and bearings of the wind turbine generator set have a temperature range of 40° C. to 150° C. and a load range of 500N to 5000N during operation.

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