Point-to-point lubricating structure of mechanical bearing and lubricating oil return control system

Abstract

The invention discloses a point-to-point lubricating structure of a mechanical bearing and a lubricating oil return control system, and relates to the technical field of lubricating systems.The point-to-point lubricating structure of the mechanical bearing comprises a bearing body, a bearing end cover and a mechanical rotating shaft, the lubrication oil return control system comprises a real-time monitoring unit, a model building unit, a parameter output unit, a parameter adjusting unit and a master control unit. Lubricating is provided for the bearing body through the lubricating oil circulating mechanism, the oil inlet pipeline and the oil outlet pipeline, real-time flow data of lubricating oil in the lubricating structure is obtained through the flow sensor, the standard lubricating oil output quantity is obtained based on a parameter equation, and a flow data set is obtained to calculate a flow deviation value; and the real-time lubricating oil output quantity of the lubricating oil circulating mechanism is adjusted to the standard lubricating oil output quantity according to the flow deviation value so as to ensure that lubrication is in place, and meanwhile self-balance adjustment of the bearing body is completed through the adjusting assembly.

Description

Technical Field

[0001] The invention relates to the technical field of lubrication systems, and in particular to a point-to-point lubrication structure of a mechanical bearing and a lubrication oil return control system. Background Art

[0002] The bearing lubrication system is a device used to ensure that the bearing maintains proper lubrication during operation to reduce friction, reduce wear, improve efficiency, and extend the life of the bearing. Lubrication is one of the key factors to ensure the stability and reliability of the bearing. Depending on the application requirements, the bearing lubrication system can have different designs. Common lubrication methods include oil lubrication and grease lubrication;

[0003] For mechanical bearings in large equipment, such as motors, fans, pumps, etc., a lubrication circulation system is usually used. The lubricating oil is circulated by the pump, filtered and re-injected into the bearings to ensure the cleanliness and continuous supply of the oil. It mainly includes lubrication pumps, oil tanks, pipes, filters, temperature control devices and pressure monitoring devices. In some advanced lubrication systems, there are also automatic control devices that can automatically adjust the flow rate and supply time of the lubricating oil according to the operating conditions of the equipment. However, the existing automatic control devices are not accurate enough and cannot adjust the amount of lubricating oil in real time according to the working status of the bearing, which is prone to problems such as insufficient lubrication or excessive lubrication.

[0004] In view of the above-mentioned technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide lubrication for the bearing body through a lubricating oil circulation mechanism, an oil inlet pipeline and an oil outlet pipeline, and at the same time adjust the real-time lubricating oil output of the lubricating oil circulation mechanism to a standard lubricating oil output through a lubricating oil return control system to ensure that lubrication is in place, and complete the self-balancing adjustment of the bearing body to ensure that the bearing body maintains a balanced state during rotation.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a point-to-point lubrication structure of a mechanical bearing, comprising a bearing body, a bearing end cover matched with the bearing body and a mechanical shaft, the bearing body is sleeved on the outer surface of the mechanical shaft, the bearing end cover is sleeved on the outer surface of the bearing body, the mechanical shaft runs through the bearing end cover, the interior of the bearing body is equipped with evenly arranged balls, the bearing end cover forms a lubrication cavity between the bearing body, the interior of the bearing body is provided with an oil inlet port and an oil outlet port, and a balance adjustment mechanism is fixed inside the lubrication cavity.

[0007] Furthermore, the oil inlet port is connected to an oil inlet pipeline, the oil outlet port is connected to an oil outlet pipeline, and the ends of the oil inlet pipeline and the oil outlet pipeline are connected to a lubricating oil circulation mechanism.

[0008] The lubricating oil circulation mechanism includes a lubricating pump, an oil tank, a filter, a temperature regulating device, and a pressure monitoring device, all of which are publicly available prior arts and will not be elaborated in the present invention.

[0009] Further, the balance adjustment mechanism includes a plurality of lubricating oil channels and adjustment components. The plurality of lubricating oil channels are evenly distributed on one side surface of the bearing body. The lubricating oil channels communicate with the lubricating cavity. The plurality of adjustment components are fixedly arranged inside the bearing end cover and correspond to the lubricating oil channels one by one.

[0010] Further, the adjustment component includes a magnet block and an electromagnet. An activity cavity is formed on one side surface of the bearing end cover. The magnet block is movably connected to the inner wall of the activity cavity. A return spring is jointly connected between the magnet block and the inner wall of the activity cavity. The electromagnet is fixedly arranged inside the bearing end cover. A connecting block is fixedly arranged on the outer surface of the magnet block. An oil channel embedding shaft is fixedly arranged on the outer surface of the connecting block. The oil channel embedding shaft is adapted to the lubricating oil channel.

[0011] The present invention also provides a lubricating oil return control system for a point-to-point lubrication structure of a mechanical bearing, including a real-time monitoring unit, a model establishment unit, a parameter output unit, a parameter adjustment unit, and a total control unit;

[0012] The real-time monitoring unit includes a bearing monitoring module and a lubrication monitoring module. The bearing monitoring module obtains vibration data of the bearing body during rotation through a plurality of vibration sensors arranged on the surface of the bearing body and sends it to the parameter adjustment unit;

[0013] The lubrication monitoring module is used to obtain real-time lubricating oil flow data inside the lubrication structure through flow sensors arranged at each oil inlet pipeline and oil outlet pipeline, and integrate them into a flow data set and send it to the parameter output unit;

[0014] The model establishment unit is used to obtain the dimension parameters of each mechanical bearing and the equipment parameters of the lubricating oil circulation mechanism, calculate the lubrication demand coefficient of each mechanical bearing based on the dimension parameters, establish a parameter equation according to the lubrication demand coefficient of each mechanical bearing and the corresponding historical lubricating oil output, and calculate the lubrication efficiency coefficient of the lubricating oil circulation mechanism as an influencing factor of the parameter equation according to the equipment parameters;

[0015] The parameter output unit is used to obtain and process the lubrication demand of the mechanical bearing. According to the lubrication demand, the lubrication demand coefficient of the target mechanical bearing can be known. Substitute the lubrication demand coefficient into the parameter equation to obtain the standard lubricating oil output, and obtain the flow deviation value by calculating the flow data set, and send the flow deviation value to the total control unit;

[0016] The parameter adjustment unit is used to obtain and process vibration data, calculate the balance coefficient of the bearing body according to the vibration data, and then evaluate the balance coefficient according to a preset balance judgment threshold to generate a corresponding adjustment signal to be sent to the overall control system;

[0017] The main control unit is used to obtain the flow deviation value, and adjust the real-time lubricating oil output of the lubricating oil circulation mechanism to the standard lubricating oil output according to the flow deviation value to ensure lubrication. At the same time, it obtains the adjustment signal and controls the corresponding adjustment component according to the adjustment signal to complete the self-balancing adjustment of the bearing body to ensure that the bearing body maintains a balanced state during rotation.

[0018] Furthermore, the specific process of establishing the parametric equation is as follows:

[0019] S101, obtaining the size parameters of each mechanical bearing and the equipment parameters of the lubricating oil circulation mechanism, wherein the size parameters include the radius R of the bearing body, the operating speed Vi of the bearing body, and the operating temperature Ti of the bearing body;

[0020] S102. Calculate the lubrication requirement coefficient Ui of the mechanical bearing according to the following formula: Wherein, e1 and e2 are preset proportional coefficients, and the lubrication demand coefficient Ui is used to reflect the degree of lubrication demand of the mechanical bearing. The larger the lubrication demand coefficient Ui is, the higher the degree of lubrication demand of the mechanical bearing is. On the contrary, the smaller the lubrication demand coefficient Ui is, the smaller the degree of lubrication demand of the mechanical bearing is.

[0021] S103, the equipment parameters include the viscosity data μ of the lubricating oil, the output power Wi of the lubricating pump and the lubricating oil return flow rate Vj, and the lubrication efficiency coefficient Yi is calculated according to the equipment parameters: Wherein, e3 and e4 are preset proportional coefficients, and the lubrication efficiency coefficient Yi is used to reflect the evaluation result of the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing. The larger the lubrication efficiency coefficient Yi is, the better the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing is. On the contrary, the smaller the lubrication efficiency coefficient Yi is, the worse the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing is.

[0022] S104, obtaining the lubrication demand coefficient Ui of each mechanical bearing, and obtaining the corresponding historical lubricating oil output Qi, and establishing the relationship between the historical lubricating oil output Qi and the lubrication demand coefficient Ui and the lubrication efficiency coefficient Yi according to the linear regression analysis method, and obtaining the linear regression equation: Qi = a + b * Yi + c * Ui;

[0023] Where a is the intercept term, which represents the basic value of the lubricating oil output Qi when all processing parameters are 0;

[0024] b is the coefficient of the lubrication efficiency coefficient Yi, which indicates the effect of the change of the lubrication efficiency coefficient Yi on the lubricating oil output Qi;

[0025] c is the coefficient of the lubrication demand coefficient Ui, which indicates the effect of the change of the lubrication demand coefficient Ui on the lubricating oil output Qi;

[0026] S105, fitting the experimental data according to statistical software to obtain the optimal regression coefficient to establish a parameter equation;

[0027] S106, using additional historical data that is not involved in establishing the parameter equation, the actual lubricant output is compared with the lubricant output predicted by the parameter equation, and the error rate and reliability of the parameter equation are evaluated. If the error of the parameter equation is within an acceptable range, the parameter equation is obtained.

[0028] Furthermore, the specific process of calculating the flow deviation value is as follows:

[0029] S201, obtaining the dimension data of the to-be-lubricated mechanical bearing of the mechanical equipment from the overall control system of the mechanical equipment where the mechanical bearing is located, processing and marking the to-be-lubricated mechanical bearing as a target mechanical bearing, and knowing the lubrication requirement coefficient of the target mechanical bearing;

[0030] S202, substituting the lubrication demand coefficient into the parameter equation to obtain the standard lubricating oil output Q1, and obtaining the flow data set at the same time, parsing the flow data set to obtain the lubricating oil inlet amount Q2 at the oil inlet pipeline corresponding to the target mechanical bearing, and calculating the flow deviation value ΔQ: ΔQ = Q1-Q2;

[0031] If ΔQ is greater than 0, the overall control unit increases the real-time lubricating oil output of the lubricating oil circulation mechanism;

[0032] If ΔQ is less than 0, the overall control unit will reduce the real-time lubricating oil output of the lubricating oil circulation mechanism.

[0033] Furthermore, the specific process of generating the corresponding adjustment signal is as follows:

[0034] S301, a vibration sensor is provided at each lubricating oil channel, and a plurality of groups of vibration data are obtained through the vibration sensor, which are expressed as a data set F={F1, F2, F3, . . . , Fn}, where n is the number of lubricating oil channels, i.e., the number of vibration sensors;

[0035] S302, calculate the balance coefficient Ki of the bearing body according to the following formula: Where α is the dimensionless coefficient, i = 1, 2, 3, ..., n, The balance coefficient Ki is the vibration stability value of the bearing body in the equilibrium state, and is used to reflect the equilibrium state of the bearing body during rotation;

[0036] S303, obtaining a preset balance judgment threshold value. If the balance coefficient Ki is greater than or equal to the balance judgment threshold value, it indicates that the bearing body is in an unbalanced and unstable state. Vibration data and the source of the vibration data are obtained one by one, and vibration sensors with a value greater than the vibration stability value are marked as vibration abnormality sites.

[0037] S304: Obtain the position of the regulating component corresponding to the vibration abnormality point, and generate a regulating signal in combination with the position of the regulating component and the balance adjustment requirement.

[0038] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0039] The point-to-point lubrication structure and lubrication oil return control system of the mechanical bearing provide lubrication for the bearing body through the lubricating oil circulation mechanism, the oil inlet pipeline and the oil outlet pipeline. During the rotation of the bearing body, the real-time flow data of the lubricating oil in the lubrication structure is obtained through the flow sensors arranged at each oil inlet pipeline and the oil outlet pipeline, and the standard lubricating oil output is obtained based on the parameter equation. The flow data set is obtained to calculate the flow deviation value, and the real-time lubricating oil output of the lubricating oil circulation mechanism is adjusted to the standard lubricating oil output according to the flow deviation value to ensure that lubrication is in place. At the same time, the adjustment signal is obtained, and the corresponding adjustment component is controlled according to the adjustment signal to complete the self-balancing adjustment of the bearing body to ensure that the bearing body maintains a balanced state during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The overall external structure schematic diagram of the present invention is shown;

[0041] Figure 2 A schematic diagram of the external structure of the bearing body of the present invention is shown;

[0042] Figure 3 A schematic diagram of the internal structure of the bearing end cover of the present invention is shown;

[0043] Figure 4 The schematic diagram of the structure of the lubrication oil return control system of the present invention is shown;

[0044] Marking instructions: 1. Bearing body; 2. Mechanical shaft; 3. Bearing end cover; 4. Ball; 5. Lubrication chamber; 6. Oil inlet port; 7. Oil outlet port; 8. Oil inlet pipeline; 9. Oil outlet pipeline; 10. Lubrication oil channel; 11. Movable chamber; 12. Magnet block; 13. Reset spring; 14. Electromagnet; 15. Connecting block; 16. Oil channel embedded in the shaft. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments 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.

[0046] Embodiment 1:

[0047] like Figure 1-3 As shown, a point-to-point lubrication structure of a mechanical bearing comprises a bearing body 1, a bearing end cover 3 matched with the bearing body 1, and a mechanical shaft 2, wherein the bearing body 1 is sleeved on the outer surface of the mechanical shaft 2, the bearing end cover 3 is sleeved on the outer surface of the bearing body 1, the mechanical shaft 2 runs through the bearing end cover 3, the interior of the bearing body 1 is equipped with evenly arranged balls 4, a lubrication cavity 5 is formed between the bearing end cover 3 and the bearing body 1, an oil inlet port 6 and an oil outlet port 7 are opened inside the bearing body 1, and a balancing adjustment mechanism is fixed inside the lubrication cavity 5.

[0048] The oil inlet port 6 is connected to an oil inlet pipeline 8, the oil outlet port 7 is connected to an oil outlet pipeline 9, and the ends of the oil inlet pipeline 8 and the oil outlet pipeline 9 are connected to a lubricating oil circulation mechanism.

[0049] The balancing adjustment mechanism includes a plurality of lubricating oil passages 10 and adjustment components. The plurality of lubricating oil passages 10 are evenly distributed on one side surface of the bearing body 1. The lubricating oil passages 10 are interconnected with the lubricating cavity 5. The plurality of adjustment components are fixed inside the bearing end cover 3 and correspond one to one with the lubricating oil passages 10.

[0050] The adjustment component includes a magnet block 12 and an electromagnet 14. A movable cavity 11 is opened on one side surface of the bearing end cover 3. The magnet block 12 is movably connected to the inner wall of the movable cavity 11. A reset spring 13 is commonly connected between the magnet block 12 and the inner wall of the movable cavity 11. The electromagnet 14 is fixedly arranged inside the bearing end cover 3. A connecting block 15 is fixedly arranged on the outer surface of the magnet block 12. An oil channel embedded shaft 16 is fixedly arranged on the outer surface of the connecting block 15. The oil channel embedded shaft 16 is adapted to the lubricating oil channel 10.

[0051] The working principle is as follows: lubrication is provided to the bearing body 1 through a lubricating oil circulation mechanism, an oil inlet pipeline 8 and an oil outlet pipeline 9, wherein the lubricating oil circulation mechanism includes a lubricating pump, an oil tank, a filter, a temperature control device and a pressure monitoring device, which are all disclosed prior arts and are therefore not described in detail in the present invention.

[0052] At the same time, the lubricating oil enters each lubricating oil channel 10 from the lubricating cavity 5, extending the lubricating surface. At the same time, the lubricating oil channel 10 and the oil channel embedded shaft 16 are adapted to each other. When the bearing body 1 vibrates locally due to insufficient lubrication, the electromagnet 14 at the corresponding position is controlled by the main control unit to connect to the power supply. Since the magnetism of the corresponding surface of the electromagnet 14 and the magnet block 12 is opposite, the magnet block 12 drives the oil channel embedded shaft 16 to move toward the side of the bearing end cover 3 under the action of the magnetic repulsive force, thereby increasing the amount of lubricating oil entering the lubricating oil channel 10 to adjust the balance state of the bearing body 1.

[0053] Embodiment 2:

[0054] like Figure 4 As shown,

[0055] The present invention also provides a lubrication oil return control system for a point-to-point lubrication structure of a mechanical bearing, comprising a real-time monitoring unit, a model building unit, a parameter output unit, a parameter adjustment unit and a total control unit;

[0056] The real-time monitoring unit includes a bearing monitoring module and a lubrication monitoring module. The bearing monitoring module obtains the vibration data of the bearing body 1 during the rotation process through a plurality of vibration sensors arranged on the surface of the bearing body 1 and sends the data to the parameter adjustment unit.

[0057] The lubrication monitoring module is used to obtain the real-time flow data of the lubricating oil in the lubrication structure through the flow sensors arranged at each oil inlet pipeline 8 and oil outlet pipeline 9, and integrate it into a flow data set and send it to the parameter output unit;

[0058] The model building unit is used to obtain the size parameters of each mechanical bearing and the equipment parameters of the lubricating oil circulation mechanism, calculate the lubrication demand coefficient of each mechanical bearing based on the size parameters, establish a parameter equation according to the lubrication demand coefficient of each mechanical bearing and the corresponding historical lubricating oil output, and calculate the lubrication efficiency coefficient of the lubricating oil circulation mechanism according to the equipment parameters as an influencing factor of the parameter equation;

[0059] The specific process of establishing the parametric equation is as follows:

[0060] S101, obtaining the size parameters of each mechanical bearing and the equipment parameters of the lubricating oil circulation mechanism, the size parameters including the radius R of the bearing body 1, the working speed Vi of the bearing body 1 and the working temperature Ti of the bearing body 1;

[0061] S102. Calculate the lubrication requirement coefficient Ui of the mechanical bearing according to the following formula: Wherein, e1 and e2 are preset proportional coefficients, and the lubrication demand coefficient Ui is used to reflect the degree of lubrication demand of the mechanical bearing. The larger the lubrication demand coefficient Ui is, the higher the degree of lubrication demand of the mechanical bearing is. On the contrary, the smaller the lubrication demand coefficient Ui is, the smaller the degree of lubrication demand of the mechanical bearing is.

[0062] S103, the equipment parameters include the viscosity data μ of the lubricating oil, the output power Wi of the lubricating pump and the lubricating oil return flow rate Vj, and the lubrication efficiency coefficient Yi is calculated according to the equipment parameters: Wherein, e3 and e4 are preset proportional coefficients, and the lubrication efficiency coefficient Yi is used to reflect the evaluation result of the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing. The larger the lubrication efficiency coefficient Yi is, the better the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing is. On the contrary, the smaller the lubrication efficiency coefficient Yi is, the worse the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing is.

[0063] S104, obtaining the lubrication demand coefficient Ui of each mechanical bearing, and obtaining the corresponding historical lubricating oil output Qi, and establishing the relationship between the historical lubricating oil output Qi and the lubrication demand coefficient Ui and the lubrication efficiency coefficient Yi according to the linear regression analysis method, and obtaining the linear regression equation: Qi = a + b * Yi + c * Ui;

[0064] Where a is the intercept term, which represents the basic value of the lubricating oil output Qi when all processing parameters are 0;

[0065] b is the coefficient of the lubrication efficiency coefficient Yi, which indicates the effect of the change of the lubrication efficiency coefficient Yi on the lubricating oil output Qi;

[0066] c is the coefficient of the lubrication demand coefficient Ui, which indicates the effect of the change of the lubrication demand coefficient Ui on the lubricating oil output Qi;

[0067] S105, fitting the experimental data according to statistical software to obtain the optimal regression coefficient to establish a parameter equation;

[0068] S106, and using additional historical data that is not involved in establishing the parameter equation, compare the actual lubricant output with the lubricant output predicted by the parameter equation, evaluate the error rate and reliability of the parameter equation, and if the parameter equation error is within an acceptable range, obtain the parameter equation.

[0069] The parameter output unit is used to obtain and process the lubrication demand of the mechanical bearing. The lubrication demand coefficient of the target mechanical bearing can be known according to the lubrication demand. The lubrication demand coefficient is substituted into the parameter equation to obtain the standard lubricating oil output, and the flow data set is obtained to calculate the flow deviation value, and the flow deviation value is sent to the general control unit;

[0070] The specific process of calculating the flow deviation value is as follows:

[0071] S201, obtaining the dimension data of the to-be-lubricated mechanical bearing of the mechanical equipment from the overall control system of the mechanical equipment where the mechanical bearing is located, processing and marking the to-be-lubricated mechanical bearing as a target mechanical bearing, and knowing the lubrication requirement coefficient of the target mechanical bearing;

[0072] S202, substituting the lubrication demand coefficient into the parameter equation to obtain the standard lubricating oil output Q1, and obtaining the flow data set at the same time, parsing the flow data set to obtain the lubricating oil inlet amount Q2 at the oil inlet pipeline 8 corresponding to the target mechanical bearing, and calculating the flow deviation value ΔQ: ΔQ = Q1-Q2;

[0073] If ΔQ is greater than 0, the overall control unit increases the real-time lubricating oil output of the lubricating oil circulation mechanism;

[0074] If ΔQ is less than 0, the overall control unit will reduce the real-time lubricating oil output of the lubricating oil circulation mechanism.

[0075] The parameter adjustment unit is used to obtain and process vibration data, calculate the balance coefficient of the bearing body 1 according to the vibration data, and then evaluate the balance coefficient according to a preset balance judgment threshold to generate a corresponding adjustment signal and send it to the overall control system;

[0076] The specific process of generating the corresponding adjustment signal is as follows:

[0077] S301, a vibration sensor is provided at each lubricating oil passage 10, and a plurality of groups of vibration data are obtained through the vibration sensor, which are expressed as a data set, wherein n is the number of the lubricating oil passages 10, that is, the number of vibration sensors;

[0078] S302, calculating the balance coefficient Ki of the bearing body 1 according to the following formula: Wherein α is a dimensionless coefficient, i=1, 2, 3, ..., n, is the vibration stability value of the bearing body 1 in the equilibrium state, and the equilibrium coefficient Ki is used to reflect the equilibrium state of the bearing body 1 during the rotation process;

[0079] S303, obtaining a preset balance judgment threshold value. If the balance coefficient Ki is greater than or equal to the balance judgment threshold value, it indicates that the bearing body 1 is in an unbalanced and unstable state. Vibration data and the source of the vibration data are obtained one by one, and vibration sensors with a value greater than the vibration stability value are marked as vibration abnormality sites.

[0080] S304: Obtain the position of the regulating component corresponding to the vibration abnormality point, and generate a regulating signal in combination with the position of the regulating component and the balance adjustment requirement.

[0081] The main control unit is used to obtain the flow deviation value, and adjust the real-time lubricating oil output of the lubricating oil circulation mechanism to the standard lubricating oil output according to the flow deviation value to ensure lubrication. At the same time, it obtains the adjustment signal and controls the corresponding adjustment component according to the adjustment signal to complete the self-balancing adjustment of the bearing body 1 to ensure that the bearing body 1 maintains a balanced state during rotation.

[0082] The present invention provides lubrication for the bearing body 1 through a lubricating oil circulation mechanism, an oil inlet pipeline 8, and an oil outlet pipeline 9. During the rotation of the bearing body 1, real-time flow data of the lubricating oil in the lubrication structure is obtained through flow sensors arranged at each oil inlet pipeline 8 and oil outlet pipeline 9, and a standard lubricating oil output is obtained based on a parameter equation. A flow deviation value is calculated by obtaining a flow data set, and the real-time lubricating oil output of the lubricating oil circulation mechanism is adjusted to the standard lubricating oil output according to the flow deviation value to ensure that lubrication is in place. At the same time, an adjustment signal is obtained, and a corresponding adjustment component is controlled according to the adjustment signal to complete self-balancing adjustment of the bearing body 1 to ensure that the bearing body 1 maintains a balanced state during rotation.

[0083] The size of the interval and threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technical personnel in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0084] The above formulas are all dimensionless and numerical calculations. The formula is a formula obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0085] In the two embodiments provided in the present application, it should be understood that the disclosed devices and systems can be implemented in other ways; for example, the device embodiments described above are only schematic, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed; another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, the indirect coupling or communication connection of devices or modules can be electrical, mechanical or other forms;

[0086] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A point-to-point lubrication structure for a mechanical bearing, comprising a bearing body (1), a bearing end cover (3) adapted to the bearing body (1), and a mechanical shaft (2), characterized in that: The bearing body (1) is sleeved on the outer surface of the mechanical shaft (2), the bearing end cover (3) is sleeved on the outer surface of the bearing body (1), the mechanical shaft (2) passes through the inside of the bearing end cover (3), the inside of the bearing body (1) is equipped with evenly arranged balls (4), the bearing end cover (3) and the bearing body (1) form a lubrication cavity (5), the inside of the bearing body (1) is provided with an oil inlet port (6) and an oil outlet port (7), and a balance adjustment mechanism is fixed inside the lubrication cavity (5).

2. A point-to-point lubrication structure for a mechanical bearing according to claim 1, characterized in that: The oil inlet port (6) is connected to an oil inlet pipeline (8), the oil outlet port (7) is connected to an oil outlet pipeline (9), and the ends of the oil inlet pipeline (8) and the oil outlet pipeline (9) are connected to a lubricating oil circulation mechanism.

3. The point-to-point lubrication structure of a mechanical bearing according to claim 1, characterized in that: The balancing adjustment mechanism comprises a plurality of lubricating oil passages (10) and adjustment components. The plurality of lubricating oil passages (10) are evenly distributed on a side surface of the bearing body (1). The lubricating oil passages (10) are interconnected with the lubricating cavity (5). The plurality of adjustment components are fixedly arranged inside the bearing end cover (3) and correspond one to one with the lubricating oil passages (10).

4. The point-to-point lubrication structure of a mechanical bearing according to claim 1, characterized in that: The adjustment component comprises a magnet block (12) and an electromagnet (14); a movable cavity (11) is provided on one side surface of the bearing end cover (3); the magnet block (12) is movably connected to the inner wall of the movable cavity (11); a return spring (13) is commonly connected between the magnet block (12) and the inner wall of the movable cavity (11); the electromagnet (14) is fixedly arranged inside the bearing end cover (3); a connecting block (15) is fixedly arranged on the outer surface of the magnet block (12); an oil channel embedded shaft (16) is fixedly arranged on the outer surface of the connecting block (15); the oil channel embedded shaft (16) and the lubricating oil channel (10) are mutually adapted.

5. A lubrication oil return control system for a point-to-point lubrication structure of a mechanical bearing, characterized in that: It includes a real-time monitoring unit, a model building unit, a parameter output unit, a parameter adjustment unit and a general control unit; The real-time monitoring unit comprises a bearing monitoring module and a lubrication monitoring module, wherein the bearing monitoring module obtains vibration data of the bearing body (1) during rotation through a plurality of vibration sensors arranged on the surface of the bearing body (1) and sends the data to the parameter adjustment unit; The lubrication monitoring module is used to obtain real-time flow data of lubricating oil in the lubrication structure through flow sensors arranged at each oil inlet pipeline (8) and oil outlet pipeline (9), and integrate the data into a flow data set and send it to the parameter output unit; The model building unit is used to obtain the size parameters of each mechanical bearing and the equipment parameters of the lubricating oil circulation mechanism, calculate the lubrication demand coefficient of each mechanical bearing based on the size parameters, establish a parameter equation according to the lubrication demand coefficient of each mechanical bearing and the corresponding historical lubricating oil output, and calculate the lubrication efficiency coefficient of the lubricating oil circulation mechanism according to the equipment parameters as an influencing factor of the parameter equation; The parameter output unit is used to obtain and process the lubrication demand of the mechanical bearing. The lubrication demand coefficient of the target mechanical bearing can be known according to the lubrication demand. The lubrication demand coefficient is substituted into the parameter equation to obtain the standard lubricating oil output, and the flow data set is obtained to calculate the flow deviation value, and the flow deviation value is sent to the general control unit; The parameter adjustment unit is used to obtain and process vibration data, calculate the balance coefficient of the bearing body (1) according to the vibration data, and then evaluate the balance coefficient according to a preset balance judgment threshold value to generate a corresponding adjustment signal and send it to the overall control system; The main control unit is used to obtain the flow deviation value, and adjust the real-time lubricating oil output of the lubricating oil circulation mechanism to the standard lubricating oil output according to the flow deviation value to ensure that lubrication is in place, and at the same time obtain the adjustment signal, and control the corresponding adjustment component according to the adjustment signal to complete the self-balancing adjustment of the bearing body (1), so as to ensure that the bearing body (1) maintains a balanced state during rotation.

6. The lubrication oil return control system of the point-to-point lubrication structure of a mechanical bearing according to claim 5, characterized in that: The specific process of establishing the parametric equation is as follows: S101, obtaining the dimensional parameters of each mechanical bearing and the equipment parameters of the lubricating oil circulation mechanism, wherein the dimensional parameters include the radius R of the bearing body (1), the operating rotation speed Vi of the bearing body (1) and the operating temperature Ti of the bearing body (1); S102. Calculate the lubrication requirement coefficient Ui of the mechanical bearing according to the following formula: Where e1 and e2 are preset proportional coefficients, and the lubrication requirement coefficient Ui is used to reflect the degree of lubrication requirement of the mechanical bearing; S103, the equipment parameters include the viscosity data μ of the lubricating oil, the output power Wi of the lubricating pump and the lubricating oil return flow rate Vj, and the lubrication efficiency coefficient Yi is calculated according to the equipment parameters: Wherein e3 and e4 are preset proportional coefficients, and the lubrication efficiency coefficient Yi is used to reflect the evaluation result of the lubrication effect of the lubricating oil circulation mechanism on the mechanical bearing; S104, obtaining the lubrication demand coefficient Ui of each mechanical bearing, and obtaining the corresponding historical lubricating oil output Qi, and establishing the relationship between the historical lubricating oil output Qi and the lubrication demand coefficient Ui and the lubrication efficiency coefficient Yi according to the linear regression analysis method, and obtaining the linear regression equation: Qi = a + b * Yi + c * Ui; Where a is the intercept term, which represents the basic value of the lubricating oil output Qi when all processing parameters are 0; b is the coefficient of the lubrication efficiency coefficient Yi, which indicates the effect of the change of the lubrication efficiency coefficient Yi on the lubricating oil output Qi; c is the coefficient of the lubrication demand coefficient Ui, which indicates the effect of the change of the lubrication demand coefficient Ui on the lubricating oil output Qi; S105, fitting the experimental data according to statistical software to obtain the optimal regression coefficient to establish a parameter equation; S106, using additional historical data that is not involved in establishing the parameter equation, the actual lubricant output is compared with the lubricant output predicted by the parameter equation, and the error rate and reliability of the parameter equation are evaluated. If the error of the parameter equation is within an acceptable range, the parameter equation is obtained.

7. The lubrication oil return control system of the point-to-point lubrication structure of a mechanical bearing according to claim 5, characterized in that: The specific process of calculating the flow deviation value is as follows: S201, obtaining the dimension data of the to-be-lubricated mechanical bearing of the mechanical equipment from the overall control system of the mechanical equipment where the mechanical bearing is located, processing and marking the to-be-lubricated mechanical bearing as a target mechanical bearing, and knowing the lubrication requirement coefficient of the target mechanical bearing; S202, substituting the lubrication demand coefficient into the parameter equation to obtain the standard lubricating oil output Q1, and obtaining the flow data set at the same time, parsing the flow data set to obtain the lubricating oil inlet amount Q2 at the oil inlet pipeline (8) corresponding to the target mechanical bearing, and calculating the flow deviation value ΔQ: ΔQ = Q1-Q2; If ΔQ is greater than 0, the overall control unit increases the real-time lubricating oil output of the lubricating oil circulation mechanism; If ΔQ is less than 0, the overall control unit will reduce the real-time lubricating oil output of the lubricating oil circulation mechanism.

8. The lubrication oil return control system of the point-to-point lubrication structure of a mechanical bearing according to claim 5, characterized in that: The specific process of generating the corresponding adjustment signal is as follows: S301, disposing a vibration sensor at each lubricating oil passage (10), and obtaining a plurality of sets of vibration data through the vibration sensor, which are expressed as a data set, wherein n is the number of lubricating oil passages (10), i.e., the number of vibration sensors; S302, calculating the balance coefficient Ki of the bearing body (1) according to the following formula: Wherein α is a dimensionless coefficient, i=1, 2, 3, ..., n, is the vibration stability value of the bearing body (1) in a balanced state, and the balance coefficient Ki is used to reflect the balanced state of the bearing body (1) during the rotation process; S303, obtaining a preset balance judgment threshold value; if the balance coefficient Ki is greater than or equal to the balance judgment threshold value, it indicates that the bearing body (1) is in an unbalanced and unstable state; obtaining vibration data and the source of the vibration data one by one; marking the vibration sensor whose value is greater than the vibration stability value as a vibration abnormality site; S304: Obtain the position of the regulating component corresponding to the vibration abnormality point, and generate a regulating signal in combination with the position of the regulating component and the balance adjustment requirement.

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