Intelligent lubrication rolling bearing and lubrication control method thereof

Abstract

An intelligent lubrication rolling bearing comprises a rolling bearing, a lubrication assembly for inputting oil into the rolling bearing for lubrication, a monitoring assembly for monitoring the state of the bearing and a regulation and control assembly, and is characterized in that the lubrication assembly, the regulation and control assembly and the monitoring assembly are respectively arranged on an outer ring of the rolling bearing; the outer ring is provided with an oil inlet channel for inputting oil, the lubricating assembly is in butt joint with the inner end of the oil inlet channel and is communicated between the outer ring and the inner ring of the rolling bearing, the regulating and controlling assembly is arranged in the oil inlet channel, the regulating and controlling assembly and the monitoring assembly are respectively connected with an external controller, and the regulating and controlling assembly moves under the control of the controller to regulate the oil flow in the lubricating assembly. The intelligent lubrication functions of lubrication, monitoring and control are integrated on the rolling bearing, more accurate lubrication management of the bearing is achieved, continuous lubrication of the bearing is ensured, distribution of lubricating oil is optimized, and the lubrication efficiency is improved. The invention further provides a lubrication control method of the intelligent lubrication rolling bearing.

Description

Technical Field

[0001] The invention relates to an intelligent lubricating rolling bearing and a lubrication control method thereof, belonging to the technical field of rolling bearing lubrication. Background Art

[0002] With the continuous improvement of industrial automation and mechanical performance, bearings are key mechanical components in these new energy vehicles, and their lubrication technology has become crucial to ensure the reliability and efficiency of the system. Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage. The effective lubrication of rolling bearings can reduce internal friction and wear of bearings, prevent burning and sticking, extend their service life, discharge friction heat, cool, prevent bearing overheating, prevent lubricant oil from aging, prevent foreign matter from invading the interior of the bearing, and prevent rust and corrosion. The failure of rolling bearings is often related to poor lubrication, and poor lubrication is mainly caused by the following points: 1. In new energy vehicles, bearings usually need to operate under high speed, high temperature and high load conditions. The motors and generators of new energy vehicles will generate a lot of heat when running at high speed. High temperature will reduce the viscosity of the lubricating oil, affect its lubrication performance, and increase friction and wear.

[0003] 2. Smooth bearing outer rings may encounter many problems in actual applications, including increased friction and wear, heat accumulation, difficulty in retaining lubricants, leading to contaminant intrusion, fretting corrosion, operating noise, stress concentration, and poor adaptability.

[0004] 3. Bearing lubricants containing impurities can cause a series of problems, including accelerated wear of bearing components, reduced lubrication effect, thermal degradation and deterioration of lubricants, resulting in filter blockage in the oil system, increased equipment failure rate, increased energy consumption, shortened bearing service life, causing unnecessary vibration and noise, and possible corrosion of metal surfaces.

[0005] 4. The bearing working conditions are complex, and there is a lack of bearing working condition monitoring and lubrication control. Adaptive lubrication cannot be performed according to the working conditions, resulting in the bearing facing problems such as insufficient lubrication, overheating, increased vibration, shortened life, increased failure rate, reduced efficiency, increased maintenance costs, operational risks, unstable performance, increased noise, difficulty in starting, and poor adaptability.

[0006] Therefore, the development of advanced bearing lubrication systems is crucial to improving the reliability of its equipment. With the advancement of intelligent manufacturing, bearing lubrication needs to develop in the direction of intelligence and automation to achieve more precise lubrication management and ensure continuous lubrication of bearings, which is also the research and development purpose of this invention. Summary of the invention

[0007] The intelligent lubricating rolling bearing provided by the present invention integrates the intelligent lubrication functions of lubrication, monitoring and control on the rolling bearing, realizes more accurate lubrication management of the bearing, ensures continuous lubrication of the bearing, promotes the bearing technology to develop in a more efficient and intelligent direction, reduces bearing damage caused by improper lubrication, reduces the maintenance frequency and cost caused by lubrication problems, improves the operating efficiency and reliability of the equipment where the bearing is located, imitates the liquid efficient delivery veins of the blades, optimizes the distribution of the lubricating oil, improves the lubrication efficiency, improves the cleanliness of the lubricating oil flowing out of the bearing, and facilitates the recycling of the lubricating oil. The present invention also provides a lubrication control method for an intelligent lubricating rolling bearing.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is: An intelligent lubricating rolling bearing comprises a rolling bearing, a lubrication component for inputting oil into the rolling bearing for lubrication, and a monitoring component and a regulating component for monitoring the state of the bearing, wherein the lubrication component, the regulating component and the monitoring component are respectively mounted on the outer ring of the rolling bearing, an oil inlet passage for inputting oil is provided on the outer ring, the lubrication component is docked with the inner end of the oil inlet passage and passes between the outer ring and the inner ring of the rolling bearing, the regulating component is mounted in the oil inlet passage, the regulating component and the monitoring component are respectively connected to an external controller, and the regulating component moves under the control of the controller to adjust the oil flow in the lubrication component.

[0009] Preferably, an oil inlet hole connected to the oil inlet channel is formed on the outer wall of the outer ring, and the oil inlet channel is formed radially along the outer ring. The lubrication assembly includes an L-shaped oil pipe connected to the inner end of the oil inlet channel and an oil nozzle connected to the L-shaped oil pipe and located between the outer ring and the inner ring, and the oil nozzle is arranged axially along the outer ring.

[0010] Preferably, the regulating component includes an oil blocker that can move in the oil inlet channel to adjust the oil flow in the L-shaped oil pipe, a piezoelectric ceramic that is connected to the controller by a wire and can push the oil blocker to move, and a spring sandwiched between the oil blocker and the inner wall of the oil inlet channel. The oil blocker is against the piezoelectric ceramic, and the piezoelectric ceramic extends or shortens under the control of the controller. The oil blocker moves inward in the oil inlet channel and compresses the spring as the piezoelectric ceramic extends, or is pushed outward by the spring as the piezoelectric ceramic shortens.

[0011] Preferably, the oil inlet passage is composed of a large diameter section, a middle diameter section and a small diameter section which are sequentially connected from the outside to the inside and whose inner diameters decrease sequentially. The oil inlet hole is connected with the middle diameter section, and an annular positioning surface along the radial direction is formed between the large diameter section and the middle diameter section, and a conical surface is formed between the middle radial section and the small diameter section. The piezoelectric ceramic is positioned in the large diameter section, and the oil blocker is T-shaped. The large end of the oil blocker is installed in the large diameter section, and the small end extends into the middle diameter section. The L-shaped oil pipe is connected to the small diameter section, and the spring is pressed between the large end of the oil blocker and the annular positioning surface. The end face of the small end of the oil blocker is a conical surface corresponding to the conical surface. The small end of the oil blocker approaches and is pressed against the conical surface as the piezoelectric ceramic elongates, and is pushed by the spring to separate from the conical surface as the piezoelectric ceramic shortens.

[0012] Preferably, the monitoring component includes a temperature sensor and a piezoelectric film sensor mounted on the outer ring. There are multiple temperature sensors and piezoelectric film sensors, respectively, distributed at both ends and the middle of the outer ring. The temperature sensor and the piezoelectric film sensor are respectively connected to the controller.

[0013] Preferably, the inner wall of the outer ring is provided with a bionic leaf vein oil path similar to the veins of a leaf and an oil collecting groove connected to the bionic leaf fat oil path, the oil collecting groove is equipped with a porous sponge for filtering the oil, the bionic leaf vein oil path is provided along the circumferential direction of the inner wall of the outer ring, and the oil collecting groove is provided along the axial direction of the inner wall of the outer ring.

[0014] Preferably, the bionic leaf vein oil circuit is evenly spaced along the axial direction on the inner wall of the outer ring, and the bionic leaf vein oil circuit includes a main vein oil groove opened in the circumferential direction of the inner wall of the outer ring and branch vein oil grooves opened on both sides of the main vein oil groove and connected to the main vein oil groove, the branch vein oil groove is a straight oil groove that forms an angle with the main vein oil groove and has a width smaller than the main vein oil groove, and the branch vein oil grooves are evenly spaced along both sides of the main vein oil groove.

[0015] Preferably, the oil collecting groove is connected to the main vein oil groove, and the porous sponge is installed at the intersection of the main vein oil groove and the oil collecting groove of the outermost bionic leaf vein oil path.

[0016] The lubrication control method for the intelligent lubrication rolling bearing described above is characterized in that: the monitoring component monitors the state of the rolling bearing in real time and sends the monitoring signal to the controller, and the controller controls the movement of the control component to adjust the oil flow in the lubrication component according to the received monitoring signal, thereby realizing intelligent lubrication of the rolling bearing.

[0017] Preferably, the specific process of regulating the oil flow in the lubrication component is: The temperature sensor in the monitoring component transmits the real-time sensed temperature signal to the controller, and the piezoelectric film sensor transmits the real-time sensed vibration signal to the controller, thereby forming a real-time monitoring of the rolling bearing status; The controller adjusts the current output to the piezoelectric ceramic according to the temperature signal and the vibration signal to control the elongation or contraction of the piezoelectric ceramic; When the piezoelectric ceramic is extended, the oil blocker is pushed inward to reduce the oil flow in the lubrication component and compress the spring; when the piezoelectric ceramic is shortened, the spring pushes the oil blocker back outward to increase the oil flow in the lubrication component.

[0018] The beneficial effects of the invention are: In the intelligent lubricating rolling bearing of the present invention, the lubrication component, the regulating component and the monitoring component are respectively installed on the outer ring of the rolling bearing, the regulating component and the monitoring component are respectively connected to an external controller, the lubrication component inputs oil into the rolling bearing to lubricate it, the monitoring component monitors the state of the bearing, and the controller controls the movement of the regulating component according to the monitoring signal transmitted in real time by the monitoring component to adjust the oil flow in the lubrication component, so as to automatically adjust the oil flow in the lubrication component according to the real-time state of the bearing, and adjust the bearing lubricating oil supply according to the working conditions to adapt to the lubrication requirements of the bearing under different working conditions, ensure that the bearing is always kept in the best lubrication state, improve lubrication efficiency, reduce oil waste, and extend the service life of lubricating oil and bearings. The intelligent lubrication functions of lubrication, monitoring and control are integrated on the rolling bearing, which not only improves the lubrication efficiency and reliability of the bearing, but also realizes real-time monitoring of the bearing operation state and intelligent lubrication adjustment, provides favorable guarantee for the long-term stable operation of the bearing, realizes more precise lubrication management of the bearing, ensures continuous lubrication of the bearing, and promotes the development of bearing technology in a more efficient and intelligent direction.

[0019] The piezoelectric property of piezoelectric ceramics that interchanges mechanical energy with voltage is utilized in the regulating component. The current input into the piezoelectric ceramics is increased or decreased by the controller to achieve the expansion and contraction of the piezoelectric ceramics, forming precise deformation of the piezoelectric ceramics. The oil blocker is pushed inward and the spring is compressed by the elongation of the piezoelectric ceramics. The oil blocker is pushed back outward by the shortening of the piezoelectric ceramics and the restoring elastic force of the compressed spring, thereby achieving reciprocating motion of the oil blocker in the oil inlet channel to regulate the oil flow in the lubrication component. The lubricating oil supply is adjusted in real time according to the actual working condition of the bearing, ensuring that the bearing is properly lubricated without excessive oil supply, and the bearing is always kept in the best lubrication state, reducing oil waste and extending the service life of the lubricating oil and bearings.

[0020] The monitoring component transmits the monitored vibration signal and temperature signal to the controller. The controller determines the working status of the bearing based on the received signal and adjusts the current output to the piezoelectric ceramic, thereby controlling the elongation or shortening of the piezoelectric ceramic and causing the oil blocker to move in the oil inlet channel. The combination of the monitoring component and the regulating component realizes flow control of the lubrication component, and forms an intelligent lubrication function that integrates lubrication, monitoring and control on the rolling bearing, realizes adaptive lubrication of the bearing according to the working conditions, and enables the rolling bearing to have the function of automatic lubrication adjustment. The monitoring component monitors the bearing status in real time, reduces bearing damage caused by improper lubrication, reduces the maintenance frequency and cost caused by lubrication problems, and improves the operating efficiency and reliability of the equipment where the bearing is located.

[0021] A bionic leaf vein oil circuit similar to the veins of a blade is opened on the inner wall of the outer ring. The oil is distributed on the entire inner wall of the outer ring through the diversion of the bionic leaf vein oil circuit, imitating the efficient liquid delivery veins of the blade, optimizing the distribution of lubricating oil, and improving lubrication efficiency. The bionic leaf vein oil circuit can store a certain amount of oil, reduce the intrusion of pollutants into the bearing, reduce the probability of fretting corrosion of the bearing, improve the lubrication effect between the inner and outer rings, reduce friction and wear, and help reduce vibration and noise during bearing operation. In addition, the setting of the bionic leaf vein oil circuit on the inner wall of the outer ring increases the contact area inside the bearing, improves the load-bearing capacity and stability. The oil collecting tank collects the oil flowing from the bionic leaf vein oil circuit and filters the oil through a porous sponge to improve the cleanliness of the lubricating oil flowing out of the bearing and facilitate the recycling of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an axial cross-sectional view of the intelligent lubrication rolling bearing of the present invention.

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of the location of the lubrication components.

[0024] Figure 3 for Figure 1 A magnified schematic diagram of the location of the regulatory components in the genome.

[0025] Figure 4 for Figure 1 A magnified schematic diagram of the location of the porous sponge.

[0026] Figure 5 This is an axial cross-sectional view of the outer ring.

[0027] Figure 6 This is a bottom view of the intelligent lubrication rolling bearing.

[0028] Figure 7 This is a radial cross-sectional view of an intelligent lubricated rolling bearing. DETAILED DESCRIPTION

[0029] Combine the following Figures 1 to 7 The embodiments of the present invention are described in detail.

[0030] An intelligent lubricating rolling bearing comprises a rolling bearing, a lubrication component 1 for inputting oil into the rolling bearing for lubrication, and a monitoring component 2 and a regulating component 3 for monitoring the state of the bearing, wherein the lubrication component 1, the regulating component 3 and the monitoring component 2 are respectively mounted on the outer ring 4 of the rolling bearing, an oil inlet 5 for inputting oil is provided on the outer ring 4, the lubrication component 1 is connected to the inner end of the oil inlet 5 and is passed between the outer ring 4 and the inner ring 6 of the rolling bearing, the regulating component 3 is mounted in the oil inlet 5, the regulating component 3 and the monitoring component 2 are respectively connected to an external controller, and the regulating component 3 moves under the control of the controller to adjust the oil flow in the lubrication component 1.

[0031] In the above-mentioned intelligent lubricating rolling bearing, the lubrication component 1, the regulating component 3 and the monitoring component 2 are respectively installed on the outer ring 4 of the rolling bearing, the regulating component 3 and the monitoring component 2 are respectively connected to the external controller, the lubrication component 1 inputs oil into the rolling bearing to lubricate it, the monitoring component 2 monitors the state of the bearing, and the controller controls the movement of the regulating component 3 according to the monitoring signal transmitted in real time by the monitoring component 2 to adjust the oil flow in the lubrication component, so as to automatically adjust the oil flow in the lubrication component 1 according to the real-time state of the bearing, and adjust the bearing lubricating oil supply according to the working conditions to adapt to the lubrication requirements of the bearing under different working conditions, ensure that the bearing is always kept in the best lubrication state, improve the lubrication efficiency, reduce the waste of oil, and extend the service life of the lubricating oil and the bearing. The intelligent lubrication function of lubrication, monitoring and control is integrated on the rolling bearing, which not only improves the lubrication efficiency and reliability of the bearing, but also realizes real-time monitoring of the bearing operation state and intelligent lubrication adjustment, provides favorable guarantee for the long-term stable operation of the bearing, realizes more precise lubrication management of the bearing, ensures continuous lubrication of the bearing, and promotes the development of bearing technology in a more efficient and intelligent direction.

[0032] The outer wall of the outer ring 4 is provided with an oil inlet hole 41 connected with the oil inlet passage 5, and the oil inlet passage 5 is provided radially along the outer ring 4. The lubrication assembly 1 includes an L-shaped oil pipe 7 connected to the inner end of the oil inlet passage 5 and an oil spray nozzle 8 connected to the L-shaped oil pipe 7 and located between the outer ring 4 and the inner ring 6, and the oil spray nozzle 8 is arranged axially along the outer ring. The L-shaped oil pipe 7 and the oil spray nozzle 8 are both installed in the outer ring, so that the lubrication assembly 1 is arranged inside the bearing, does not occupy the outer space of the bearing, does not increase the space volume of the bearing, has a high degree of integration, and sprays the lubricating oil to the contact area of ​​the bearing with high precision through the nozzle, so that a stable oil film is formed and maintained between the rolling element and the raceway, and the rollers and cages between the inner and outer rings are accurately lubricated, reducing the waste of oil and improving the effectiveness and reliability of lubrication.

[0033] Among them, the regulating component 3 includes an oil blocker 9 that can move in the oil inlet channel 5 to adjust the oil flow in the L-shaped oil pipe 7, a piezoelectric ceramic 10 that is connected to the controller through a wire and can push the oil blocker 9 to move, and a spring 11 sandwiched between the oil blocker 9 and the inner wall of the oil inlet channel 5. The oil blocker 9 is against the piezoelectric ceramic 10, and the piezoelectric ceramic 10 is extended or shortened according to the control of the controller. The oil blocker moves inward in the oil inlet channel 5 and compresses the spring 11 as the piezoelectric ceramic 10 is extended, or is pushed outward by the spring 11 as the piezoelectric ceramic 10 is shortened. By utilizing the piezoelectric property of the piezoelectric ceramic 10 that mechanical energy and voltage are interchangeable, the current input into the piezoelectric ceramic 10 is increased or decreased through a controller to achieve the expansion and contraction of the piezoelectric ceramic, forming a precise deformation of the piezoelectric ceramic, and the oil blocker 9 is pushed inward and the spring 11 is compressed by the elongation of the piezoelectric ceramic 10. The oil blocker 9 is pushed back outward by the shortening of the piezoelectric ceramic 10 and the restoring elastic force of the compressed spring 11, so as to achieve the reciprocating motion of the oil blocker 9 in the oil inlet 5, so as to adjust the oil flow input into the L-shaped pipe 7. Under high-speed, high-temperature and high-load conditions, the oil flow input into the L-shaped pipe 7 is increased to increase the bearing lubrication supply. Under low-speed or light-load conditions, the oil flow input into the L-shaped pipe 7 is reduced to reduce the bearing lubrication supply, so as to achieve real-time adjustment of the lubricating oil supply according to the actual working condition of the bearing, to ensure that the bearing is properly lubricated without excessive oil supply, the bearing is always kept in the best lubrication state, oil waste is reduced, and the service life of the lubricating oil and the bearing is extended.

[0034] Among them, the oil inlet channel 5 is composed of a large diameter section 51, a middle diameter section 52 and a small diameter section 53 which are connected in sequence from the outside to the inside and whose inner diameters decrease in sequence. The oil inlet hole 41 is connected to the middle diameter section 52. A radial annular positioning surface 54 is formed between the large diameter section 51 and the middle diameter section 52. A conical surface 55 is formed between the middle radial section 52 and the small diameter section 53. The piezoelectric ceramic 10 is positioned in the large diameter section 51. The oil blocker 9 is T-shaped. The large end of the oil blocker 9 is installed in the large diameter section 51, and the small end extends into the middle diameter section 52. The L-shaped oil pipe 7 is connected to the small diameter section 53. The spring 11 is pressed between the large end of the oil blocker 9 and the annular positioning surface 54. The end face of the small end of the oil blocker 9 is a conical surface corresponding to the conical surface 55. The small end of the oil blocker 9 approaches and is pressed against the conical surface 55 as the piezoelectric ceramic 10 extends, and is pushed by the spring 11 to separate from the conical surface as the piezoelectric ceramic 10 shortens. like Figure 2~3As shown, the oil enters the oil inlet channel 5 from the oil inlet hole 41. When the small end of the oil blocker 9 is separated from the tapered surface 55, the oil can flow from the middle diameter section 52 to the small diameter section 53 and enter the L-shaped oil pipe 7. When the small end of the oil blocker 9 approaches the tapered surface, the oil flow through the opening is reduced, and the oil flow into the small diameter section 53 is reduced accordingly, so that the oil flow in the L-shaped oil pipe 7 is reduced. When the small end face of the oil blocker 9 is pressed against the tapered surface, the small diameter section 53 is closed, and the oil cannot enter the small diameter section 53, so that the oil flow in the L-shaped oil pipe 7 is reduced to zero. Therefore, pushing the oil blocker 9 to move in the oil inlet channel 5 can adjust the oil flow in the L-shaped pipe 7 to adjust the bearing lubrication supply, thereby forming adaptive lubrication according to lubrication needs, thereby reducing oil waste while ensuring that the bearing is effectively lubricated. The large end of the oil blocker 9 and the annular A spring 11 is sandwiched between the positioning surfaces 54, and the small end of the oil blocker 9 extends into the middle diameter section 52, and the end face of the small end corresponds to the tapered surface 55. When the piezoelectric ceramic 10 is elongated due to the increase in input current, it will push the oil blocker 9 to approach the tapered surface 55 and compress the spring 11, so that the oil flow rate flowing into the L-shaped oil pipe 7 is gradually reduced. When the end face of the small end of the oil blocker 9 is pressed against the tapered surface 55, the oil flow rate in the L-shaped oil pipe 7 is reduced to zero. When the piezoelectric ceramic 10 is shortened due to the decrease in input current, the compressed spring 11 will passively move the oil blocker 9 back outward, so that the oil flow rate flowing into the L-shaped oil pipe 7 is gradually increased. When the end face of the small end of the oil blocker 7 is pushed outward to the outside of the oil inlet hole 41, the oil flow rate flowing into the L-shaped oil pipe 7 reaches a maximum. If the oil blocker 7 continues to move outward, the oil flow rate in the L-shaped oil pipe 7 will remain unchanged.

[0035] Among them, the monitoring component 2 includes a temperature sensor 12 and a piezoelectric film sensor 13 installed on the outer ring 4. The number of the temperature sensor 12 and the piezoelectric film sensor 13 are multiple, distributed at both ends and the middle of the outer ring 4. The temperature sensor 12 and the piezoelectric film sensor 13 are respectively connected to the controller. The temperature sensor 12 monitors the real-time temperature of the bearing, and the piezoelectric film sensor 13 monitors the real-time vibration of the bearing. The monitored vibration signal and temperature signal are transmitted to the controller. The controller determines the working state of the bearing according to the received signal and adjusts the current input to the piezoelectric ceramic, thereby controlling the piezoelectric ceramic 10 to extend or shorten, so that the oil blocker 9 moves in the oil inlet channel 5. The combination of the monitoring component 2 and the regulating component 3 realizes the flow control of the lubrication component 1, and forms an intelligent lubrication function integrating lubrication, monitoring and control on the rolling bearing, realizes adaptive lubrication of the bearing according to the working conditions, and enables the rolling bearing to have the function of automatically adjusting lubrication. The bearing status is monitored in real time by the monitoring component 2, so as to reduce bearing damage caused by improper lubrication, reduce the maintenance frequency and cost caused by lubrication problems, and improve the operating efficiency and reliability of the equipment where the bearing is located.

[0036] The inner wall of the outer ring 4 is provided with a bionic leaf vein oil path 14 similar to the veins of the blade and an oil collecting groove 15 connected to the bionic leaf fat oil path. The oil collecting groove 15 is provided with a porous sponge 16 for filtering the oil. The bionic leaf vein oil path 14 is provided along the circumferential direction of the inner wall of the outer ring 4, and the oil collecting groove 15 is provided along the axial direction of the inner wall of the outer ring 4. The bionic leaf vein oil path 14 similar to the veins of the blade is provided on the inner wall of the outer ring 4. The oil is distributed on the entire inner wall of the outer ring through the diversion of the bionic leaf vein oil path 14, thereby optimizing the distribution of the lubricating oil and improving the lubrication efficiency. The bionic leaf vein oil path 14 can store a certain amount of oil, reduce the intrusion of pollutants into the bearing, reduce the probability of fretting corrosion of the bearing, improve the lubrication effect between the inner and outer rings, reduce friction and wear, and help reduce the vibration and noise of the bearing during operation. Moreover, the setting of the bionic leaf vein oil path on the inner wall of the outer ring increases the contact area inside the bearing, and improves the load-bearing capacity and stability. The oil collecting tank collects the oil flowing from the bionic leaf vein oil path 14 and filters the oil through the porous sponge 16 to improve the cleanliness of the lubricating oil flowing out of the bearing and facilitate the recycling of the lubricating oil.

[0037] The bionic leaf vein oil path 14 is evenly spaced along the axial direction on the inner wall of the outer ring, and the bionic leaf vein oil path 14 includes a main vein oil groove 17 opened along the circumference of the inner wall of the outer ring 4 and a branch vein oil groove 18 opened on both sides 17 of the main vein oil groove and connected to the main vein oil groove. The branch vein oil groove 18 is a straight oil groove that forms an angle with the main vein oil groove 17 and has a width smaller than the main vein oil groove 17. The branch vein oil groove 18 is evenly spaced along both sides of the main vein oil groove 17. The main vein oil groove 17 guides the oil to the inner wall of the outer ring, and the branch vein oil groove 18 guides the oil to both sides of the main vein oil groove 17, thereby increasing the distribution area of ​​the oil on the inner wall of the outer ring, imitating the efficient liquid delivery veins of the blade, optimizing the distribution of the lubricating oil, and improving the lubrication efficiency.

[0038] The oil collecting tank 15 is connected to the main vein oil tank 17, and the porous sponge 16 is installed at the intersection of the main vein oil tank 17 and the oil collecting tank 15 of the outermost bionic leaf vein oil path. The flowing oil flows to the main vein oil tank 17 and the branch vein oil tank 18, and then gathers to the main vein oil tank 17 and flows into the oil collecting tank 15. In the oil collecting tank 16, it is filtered by the porous sponge 16 and then flows out of the bearing. The lubricating oil flowing out of the bearing can be reused for lubrication of the bearing, realizing recycling. The porous sponge is used to purify the oil, prolong the service life of the oil and reduce damage to the bearing.

[0039] The present invention also protects the lubrication control method of the intelligent lubricated rolling bearing described above, which is characterized in that: the monitoring component 2 monitors the state of the rolling bearing in real time and sends the monitoring signal to the controller, and the controller controls the movement of the control component 3 to adjust the oil flow in the lubrication component 1 according to the received monitoring signal, thereby realizing intelligent lubrication of the rolling bearing.

[0040] In the lubrication control method for the intelligent lubrication rolling bearing described above, the lubrication component 1 inputs oil into the rolling bearing to lubricate it, the monitoring component 2 monitors the state of the bearing, and the controller controls the movement of the control component 3 according to the monitoring signal transmitted in real time by the monitoring component 2 to adjust the oil flow in the lubrication component, so as to automatically adjust the oil flow in the lubrication component 1 according to the real-time state of the bearing, and adjust the bearing lubricating oil supply according to the working conditions to adapt to the lubrication requirements of the bearing under different working conditions, ensure that the bearing is always maintained in the best lubrication state, improve lubrication efficiency, reduce oil waste, and extend the service life of the lubricating oil and bearings. The intelligent lubrication function of lubrication, monitoring and control is integrated on the rolling bearing, which not only improves the lubrication efficiency and reliability of the bearing, but also realizes real-time monitoring of the bearing operating state and intelligent lubrication adjustment, providing favorable guarantees for the long-term stable operation of the bearing, realizing more precise lubrication management of the bearing, ensuring continuous lubrication of the bearing, and promoting the development of bearing technology in a more efficient and intelligent direction.

[0041] The specific process of adjusting the oil flow in the lubrication component 1 is: The temperature sensor 12 in the monitoring component 2 transmits the real-time sensed temperature signal to the controller, and the piezoelectric film sensor 13 transmits the real-time sensed vibration signal to the controller, thereby forming a real-time monitoring of the rolling bearing state; The controller adjusts the current output to the piezoelectric ceramic 10 according to the temperature signal and the vibration signal to control the elongation or contraction of the piezoelectric ceramic; When the piezoelectric ceramic is extended, it pushes the oil blocker 9 to move inward, thereby reducing the oil flow in the lubricating component 1 and compressing the spring 11; when the piezoelectric ceramic 10 is shortened, the spring pushes the oil blocker 9 to move back outward, thereby increasing the oil flow in the lubricating component 1.

[0042] By utilizing the piezoelectric property of the piezoelectric ceramic 10 that mechanical energy and voltage are interchangeable, the current input into the piezoelectric ceramic 10 is increased or decreased by the controller to realize the expansion and contraction of the piezoelectric ceramic, forming a precise deformation of the piezoelectric ceramic, and the oil blocker 9 is pushed inward and the spring 11 is compressed by the elongation of the piezoelectric ceramic 10. The oil blocker 9 is pushed back outward by the shortening of the piezoelectric ceramic 10 and the restoring elastic force of the compressed spring 11, so as to realize the reciprocating motion of the oil blocker 9 in the oil inlet channel 5, so as to adjust the oil flow in the lubrication component 1, increase the oil flow in the lubrication component 1 under high speed, high temperature and high load conditions to increase the bearing lubrication supply, and reduce the oil flow input into the lubrication component 1 under low speed or light load conditions to reduce the bearing lubrication supply, so as to realize real-time adjustment of the lubricating oil supply according to the actual working condition of the bearing, ensure that the bearing is properly lubricated without excessive oil supply, and the bearing is always kept in the best lubrication state, thereby reducing oil waste and extending the service life of the lubricating oil and the bearing.

[0043] The above is a complete description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. An intelligent lubricating rolling bearing, comprising a rolling bearing, a lubricating component for inputting oil into the rolling bearing for lubrication, and a monitoring component and a regulating component for monitoring the state of the bearing, characterized in that: The lubrication component, control component and monitoring component are respectively installed on the outer ring of the rolling bearing. An oil inlet passage for inputting oil liquid is provided on the outer ring. The lubrication component is connected to the inner end of the oil inlet passage and passes between the outer ring and the inner ring of the rolling bearing. The control component is installed in the oil inlet passage. The control component and the monitoring component are respectively connected to an external controller. The control component moves under the control of the controller to adjust the oil flow in the lubrication component.

2. The intelligent lubricating rolling bearing according to claim 1, characterized in that: The outer wall of the outer ring is provided with an oil inlet hole connected with the oil inlet channel, the oil inlet channel is radially provided along the outer ring, the lubrication assembly comprises an L-shaped oil pipe connected with the inner end of the oil inlet channel and an oil nozzle connected to the L-shaped oil pipe and located between the outer ring and the inner ring, the oil nozzle is arranged axially along the outer ring.

3. The intelligent lubricating rolling bearing according to claim 2 is characterized in that: The regulating component includes an oil blocker that can move in the oil inlet channel to adjust the oil flow in the L-shaped oil pipe, a piezoelectric ceramic that is connected to the controller through a wire and can push the oil blocker to move, and a spring sandwiched between the oil blocker and the inner wall of the oil inlet channel. The oil blocker and the piezoelectric ceramic are against each other, and the piezoelectric ceramic extends or shortens under the control of the controller. The oil blocker moves inward in the oil inlet channel and compresses the spring as the piezoelectric ceramic extends, or is pushed outward by the spring as the piezoelectric ceramic shortens.

4. The intelligent lubricating rolling bearing according to claim 3 is characterized in that: The oil inlet passage is composed of a large diameter section, a middle diameter section and a small diameter section which are connected in sequence from the outside to the inside and whose inner diameters decrease in sequence. The oil inlet hole is connected with the middle diameter section. A radial annular positioning surface is formed between the large diameter section and the middle diameter section, and a conical surface is formed between the middle radial section and the small diameter section. The piezoelectric ceramic is positioned in the large diameter section. The oil blocker is T-shaped. The large end of the oil blocker is installed in the large diameter section, and the small end extends into the middle diameter section. The L-shaped oil pipe is connected to the small diameter section. The spring is pressed between the large end of the oil blocker and the annular positioning surface. The end face of the small end of the oil blocker is a conical surface corresponding to the conical surface. The small end of the oil blocker approaches and is pressed against the conical surface as the piezoelectric ceramic elongates, and is pushed by the spring to separate from the conical surface as the piezoelectric ceramic shortens.

5. The intelligent lubricating rolling bearing according to claim 1, characterized in that: The monitoring component includes a temperature sensor and a piezoelectric film sensor installed on the outer ring. There are multiple temperature sensors and piezoelectric film sensors, which are distributed at both ends and the middle of the outer ring. The temperature sensors and piezoelectric film sensors are connected to the controller respectively.

6. The intelligent lubricating rolling bearing according to claim 1, characterized in that: The inner wall of the outer ring is provided with a bionic leaf vein oil path similar to the veins of a leaf and an oil collecting groove connected to the bionic leaf fat oil path. The oil collecting groove is equipped with a porous sponge for filtering the oil. The bionic leaf vein oil path is provided along the circumferential direction of the inner wall of the outer ring, and the oil collecting groove is provided along the axial direction of the inner wall of the outer ring.

7. The intelligent lubricating rolling bearing according to claim 6, characterized in that: The bionic leaf vein oil circuit is evenly spaced along the axial direction on the inner wall of the outer ring. The bionic leaf vein oil circuit includes a main vein oil groove opened along the circumferential direction of the inner wall of the outer ring and branch vein oil grooves opened on both sides of the main vein oil groove and connected to the main vein oil groove. The branch vein oil groove is a straight-line oil groove that forms an angle with the main vein oil groove and has a width smaller than the main vein oil groove. The branch vein oil grooves are evenly spaced along both sides of the main vein oil groove.

8. The intelligent lubricating rolling bearing according to claim 7, characterized in that: The oil collecting groove is connected with the main vein oil groove, and the porous sponge is installed at the intersection of the main vein oil groove and the oil collecting groove of the outermost bionic leaf vein oil path.

9. The lubrication control method for an intelligent lubrication rolling bearing according to any one of claims 1 to 8, characterized in that: The monitoring component monitors the status of the rolling bearing in real time and sends the monitoring signal to the controller. The controller controls the movement of the control component to adjust the oil flow in the lubrication component according to the received monitoring signal, thereby realizing intelligent lubrication of the rolling bearing.

10. The lubrication control method of the intelligent lubrication rolling bearing according to claim 9, characterized in that: The specific process of regulating the oil flow in the lubrication component is: The temperature sensor in the monitoring component transmits the real-time sensed temperature signal to the controller, and the piezoelectric film sensor transmits the real-time sensed vibration signal to the controller, thereby forming a real-time monitoring of the rolling bearing status; The controller adjusts the current output to the piezoelectric ceramic according to the temperature signal and the vibration signal to control the elongation or contraction of the piezoelectric ceramic; When the piezoelectric ceramic is extended, the oil blocker is pushed inward to reduce the oil flow in the lubrication component and compress the spring; when the piezoelectric ceramic is shortened, the spring pushes the oil blocker back outward to increase the oil flow in the lubrication component.

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