Method, device and storage medium for determining lubricating oil requirement of a gearbox

Abstract

The application provides a gear box lubricating oil demand determination method, device and storage medium, relates to the mechanical transmission field, and comprises the following steps: acquiring configuration parameters of gear box moving parts; wherein, the moving parts comprise gears, bearings and oil seals; acquiring heat generation amounts of the moving parts by a heat generation characteristic model of the moving parts according to the configuration parameters; and acquiring lubricating oil demand amounts of the moving parts by corresponding oil amount demand evaluation models according to the heat generation amounts of the moving parts. The application can solve the problem that the lubricating oil demand amounts of various moving parts in the gear box cannot be accurately determined.

Description

Technical Field

[0001] This application relates to the field of mechanical transmission, and in particular to a method, equipment and storage medium for determining the required amount of lubricating oil for a gearbox. Background Technology

[0002] Gearboxes are one of the core components in the field of mechanical transmission. They integrate gears, bearings, oil seals, and other parts, with the housing serving as the load-bearing foundation. In recent years, with the development of electric vehicle drives, the input speed and torque of vehicle gearboxes have become increasingly higher. On the one hand, the increase in input speed and torque leads to greater heat generation from moving parts; on the other hand, the increase in input speed leads to a sharp increase in churning losses from moving parts. Therefore, it is necessary to reasonably assess the lubricating oil requirements of each moving part to ensure that the heat generated by meshing is adequately dissipated without increasing churning losses due to excessive lubricating oil.

[0003] Currently, research on calculating the lubricant requirements of gearboxes is still limited. The *Mechanical Lubrication Design Handbook and Atlas* presents an empirical method for estimating lubricant requirements per millimeter of tooth width; the Technical University of Munich provides a method for estimating gear meshing lubricant requirements based on per 100 kilowatts of input power. Literature review indicates that there is currently no systematic method for calculating the lubricant requirements of various moving components in a gearbox, such as gears, bearings, and oil seals.

[0004] To address the aforementioned shortcomings, there is an urgent need for a method, equipment, and storage medium for determining the lubricant requirements of gearboxes, which can solve the problem of the inability to accurately determine the lubricant requirements of various moving parts in a gearbox. Summary of the Invention

[0005] This application provides a method, device, and storage medium for determining the lubricating oil requirement of a gearbox, in order to solve the problem in the prior art that the lubricating oil requirement of each moving part in a gearbox cannot be accurately determined.

[0006] In a first aspect, this application provides a method for determining the required amount of gearbox lubricating oil, including:

[0007] Obtain the configuration parameters of the moving parts of the gearbox; wherein, the moving parts include gears, bearings, and oil seals;

[0008] The heat generation of the moving parts is obtained based on the configuration parameters and the heat generation characteristic model of the moving parts.

[0009] The required amount of lubricating oil for the moving parts is obtained by using a corresponding oil demand assessment model based on the heat generated by the moving parts.

[0010] In one possible design, the moving component is the gear, and the configuration parameters of the gear include the normal load of the gear, the thickness of the elastic dynamic oil film on the gear tooth surface, and the average rolling speed of the gear; obtaining the heat generation of the moving component based on the configuration parameters through a heat generation characteristic model includes:

[0011] The heat generation of the gear is obtained by substituting the configuration parameters of the gear into the heat generation characteristic model of the gear.

[0012] The heat generation characteristic model of the gear is expressed as follows:

[0013] Q1 = Q H +Q R

[0014] Q H =0.329f Hm F n m n (1+z2 / z1)X E

[0015] Q R =9hV Tm / cosβ

[0016] Where Q1 represents the total heat generated by the gear, Q H and Q R These represent the sliding heat generation and rolling heat generation of the gear, respectively;

[0017] Among them, f Hm F represents the average sliding friction coefficient of the gear tooth surface. n The normal load on the gear is represented by m. n X represents the normal module of the gear. E This indicates the gear overlap ratio; z1 and z2 represent the number of teeth on the driving gear and driven gear, respectively.

[0018] Where h represents the thickness of the elastic dynamic oil film on the tooth surface of the gear, and V Tm β represents the average rolling speed of the gear, and β represents the pitch circle helix angle of the gear.

[0019] In one possible design, the moving component is the bearing, and the bearing's configuration parameters include the bearing's equivalent load and the bearing's rotational speed; obtaining the heat generation of the moving component based on the configuration parameters using a heat generation characteristic model includes:

[0020] The heat generation of the bearing is obtained by substituting the configuration parameters of the bearing into the heat generation characteristic model of the bearing.

[0021] The heat generation characteristic model of the bearing is expressed as follows:

[0022] Q2 = fPD M n / 9549

[0023] Where Q2 represents the heat generated by the bearing, f represents the friction coefficient of the bearing, P represents the equivalent load of the bearing, and D M 'n' represents the bearing's mean diameter, and 'n' represents the bearing's rotational speed.

[0024] In one possible design, the moving component is the oil seal, and the configuration parameters of the oil seal include the rotational speed of the bearing; obtaining the heat generation of the moving component based on the configuration parameters through a heat generation characteristic model includes:

[0025] The heat generation of the bearing is obtained by substituting the configuration parameters of the oil seal into the heat generation characteristic model of the oil seal;

[0026] The heat generation characteristic model of the oil seal is expressed as follows:

[0027] Q3=γD s n / 9549

[0028] Where Q3 represents the heat generated by the bearing, and γ represents the friction coefficient of the oil seal; D s The value represents the oil seal diameter, and n represents the bearing rotational speed.

[0029] In one possible design, the lubricant requirement of the moving parts is obtained based on the heat generated by the moving parts using a corresponding oil demand assessment model, including:

[0030] The heat generated by the moving parts is substituted into the corresponding oil demand assessment model to obtain the lubricating oil demand of the moving parts.

[0031] The oil demand assessment model for the moving parts includes:

[0032] V i =Q i / (C·ρ·λ i ·Δt i )

[0033] Where i = 1, 2, 3, representing the gear, bearing, and oil seal respectively, and V i Q represents the required amount of lubricating oil for the corresponding moving parts. i The value represents the heat generated by the corresponding moving parts, C represents the specific heat capacity of the lubricating oil, ρ represents the density of the lubricating oil, and λ represents the specific heat capacity of the lubricating oil. i Δt represents the utilization coefficient of the corresponding moving parts. i This indicates the temperature rise of the lubricating oil after passing through the corresponding moving parts.

[0034] In one possible design, before obtaining the corresponding oil demand assessment model based on the moving parts, the method further includes:

[0035] The parameters of the oil quantity requirement assessment model are determined based on the gear oil type, including:

[0036] If the gear oil type is 85W-90, C is taken as 1.94kJ / kg*k, and ρ is taken as 870kg / m 3 ;

[0037] If the gear oil type is 75W-80, C is taken as 2.02kJ / kg*k, and ρ is taken as 835kg / m 3 ;

[0038] If the gear oil type is 75W-90, C is taken as 2.24 kJ / kg*k, and ρ is taken as 855 kg / m 3 .

[0039] In one possible design, the parameters of the oil demand assessment model include: λ1 is 0.5, Δt1 is 10℃; if the bearing is a roller bearing, λ2 is 0.5, Δt2 is 20℃; if the bearing is a ball bearing, λ2 is 1, Δt2 is 20℃; λ3 is 0.5, Δt3 is 5℃.

[0040] Secondly, this application provides a gearbox lubricant demand determination device, the device comprising:

[0041] The parameter acquisition module is used to acquire the configuration parameters of the moving parts of the gearbox; wherein, the moving parts include gears, bearings, and oil seals;

[0042] The first model module is used to obtain the heat generation of the moving parts based on the configuration parameters through the heat generation characteristic model of the moving parts;

[0043] The second model module is used to obtain the lubricant requirement of the moving parts based on the heat generated by the moving parts through the corresponding oil demand assessment model.

[0044] Thirdly, this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0045] The memory stores computer-executed instructions;

[0046] The processor executes the computer execution instructions stored in the memory to implement the above-described method for determining the required amount of gearbox lubricating oil.

[0047] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the aforementioned method for determining the required amount of gearbox lubricating oil.

[0048] This application provides a method, device, and storage medium for determining the lubricating oil requirement of a gearbox, comprising: determining a heat generation characteristic model and an oil quantity requirement assessment model based on input gearbox moving parts and configuration parameters; obtaining the heat generation of the moving parts based on the heat generation characteristic model; and obtaining the lubricating oil requirement of the moving parts based on the heat generation of the moving parts and the corresponding oil quantity requirement assessment model. The following technical effects are achieved:

[0049] Being able to obtain the lubrication oil requirements of each moving part by analyzing the structural parameters of gearbox components helps to achieve precise lubrication of the gearbox, thereby avoiding failure problems caused by insufficient lubrication oil. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 A flowchart illustrating the process for determining the gearbox lubricant requirement provided in this application embodiment. Figure 1 ;

[0052] Figure 2 A flowchart illustrating the process for determining the gearbox lubricant requirement provided in this application embodiment. Figure 2 ;

[0053] Figure 3 A schematic diagram of the structure of the gearbox lubricating oil demand determination device provided in the embodiments of this application;

[0054] Figure 4 This is a schematic diagram of the hardware structure of the electronic device provided in the embodiments of this application.

[0055] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0056] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of devices and methods consistent with some aspects of this application as detailed in the appended claims, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0057] It should be noted that, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0058] It should be noted that the terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0059] It should be noted that "at the time of..." in the embodiments of this application can be either at the instant when a certain situation occurs, or for a period of time after the occurrence of a certain situation. The embodiments of this application do not make specific limitations on this.

[0060] In existing technologies, the lubricating oil requirement of the entire gearbox is often taken as the research object, aiming to improve the accuracy of the lubricating oil requirement of the entire gearbox. However, the needs of the motion in the gearbox are not considered one by one, which leads to low accuracy of the final lubricating oil requirement of the gearbox, or insufficient lubricating oil due to the distribution problem of lubricating oil in various parts, which further leads to gearbox malfunction or failure.

[0061] The method, equipment, and storage medium for determining the gearbox lubricant demand provided in this application aim to solve the above-mentioned technical problems in the prior art.

[0062] The method provided in this application combines the structural parameters and operating conditions of the moving parts in the gearbox to obtain the lubricating oil requirements of each moving part in real time. This application can be applied to the design of gearbox lubrication systems and the control of active lubrication systems, which helps to achieve precise lubrication of the gearbox, thereby avoiding failure problems caused by insufficient lubricating oil and heat generation problems caused by excessive lubricating oil, and ultimately achieving reliable and efficient operation of the gearbox with the minimum amount of oil.

[0063] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0064] Figure 1 A flowchart illustrating the process for determining the gearbox lubricant requirement provided in this application embodiment. Figure 1 ,like Figure 1 As shown, the method includes:

[0065] S101. Obtain the configuration parameters of the moving parts of the gearbox; wherein the moving parts include gears, bearings and oil seals;

[0066] Specifically, the moving parts include gears, bearings, and oil seals. The configuration parameters of the moving parts of the gearbox include the structural parameters and operating condition parameters of each part.

[0067] S102. Obtain the heat generation of the moving parts through the heat generation characteristic model of the moving parts based on the configuration parameters;

[0068] Specifically, the corresponding heat generation characteristic model is determined based on different moving parts, thereby obtaining the heat generation of the moving parts;

[0069] S103. Obtain the lubricant requirement of the moving parts based on the heat generated by the moving parts using the corresponding oil demand assessment model.

[0070] Specifically, the corresponding oil demand assessment model is determined based on the configuration parameters, and the corresponding heat generation is incorporated to obtain the lubricant demand of the moving parts.

[0071] The method provided in this application determines a heat generation characteristic model and an oil demand assessment model based on the input gearbox moving parts and configuration parameters. The heat generation characteristic model is used to obtain the heat generated by the moving parts; and the lubricating oil demand of the moving parts is obtained based on the heat generation and the corresponding oil demand assessment model. This achieves the following technical effects:

[0072] Being able to obtain the lubrication oil requirements of each moving part by analyzing the structural parameters of gearbox components helps to achieve precise lubrication of the gearbox, thereby avoiding failure problems caused by insufficient lubrication oil.

[0073] Figure 2 A flowchart illustrating the method for determining the gearbox lubricant requirement provided in this application embodiment. Figure 2 ;like Figure 2 As shown, the method includes:

[0074] S201. Determine whether the moving parts of the gearbox are gears, bearings, or oil seals, and obtain the configuration parameters of the corresponding parts; if the moving parts are gears, jump to S202; if the moving parts are bearings, jump to S203; if the moving parts are oil seals, jump to S204.

[0075] Specifically, the gears, bearings, or oil seals of the gearbox are gearbox components selected by the user. The user can select one or more moving components and determine the lubricating oil requirement of the moving component using the method of this embodiment.

[0076] Specifically, the configuration parameters corresponding to the moving parts described in this article refer to the real-time parameters obtained by the staff based on the implementation conditions.

[0077] S202. Obtain the heat generation characteristic model of the gear according to the preset parameters of the gear, input the configuration parameters of the gear into the corresponding heat generation characteristic model to obtain the heat generation of the gear; jump to S205;

[0078] Specifically, the preset parameters of the gear include the average sliding friction coefficient of the tooth surface, the normal module of the gear, the contact ratio, and the pitch circle helix angle of the gear, which are preset parameters obtained based on the structural characteristics of the gear; the configuration parameters of the gear include: the normal load of the gear, the thickness of the elastic dynamic oil film on the tooth surface of the gear, and the average rolling speed of the gear.

[0079] Furthermore, the heat generation characteristic model of gears is expressed as follows:

[0080] Q1 = Q H +Q R

[0081] Q H =0.329f Hm F n m n (1+z2 / z1)X E

[0082] Q R =9hV Tm / cosβ

[0083] Where Q1 represents the total heat generated by the gears, QH and Q R These represent the sliding heat generation and rolling heat generation of the gear, respectively;

[0084] Among them, f Hm F represents the average sliding friction coefficient of the gear tooth surface. n The normal load on the gear is represented by m. n X represents the normal module of the gear. E This indicates the gear overlap ratio; z1 and z2 represent the number of teeth on the driving gear and driven gear, respectively.

[0085] Where h represents the thickness of the elastic dynamic oil film on the gear tooth surface, V Tm β represents the average rolling speed of the gear, and β represents the pitch circle helix angle of the gear.

[0086] S203. Obtain the bearing's heat generation characteristic model based on the bearing's preset parameters, input the bearing's configuration parameters into the corresponding heat generation characteristic model to obtain the bearing's heat generation; jump to S205;

[0087] Specifically, the bearing configuration parameters include the bearing's equivalent load and bearing speed; the bearing's preset parameters include the bearing's friction coefficient and bearing's pitch diameter.

[0088] Specifically, the heat generation characteristic model of the bearing is represented as follows:

[0089] Q2 = fPD M n / 9549

[0090] Where Q2 represents the heat generated by the bearing, f represents the friction coefficient of the bearing, P represents the equivalent load of the bearing, and D... M 'n' represents the bearing's mean diameter, and 'n' represents the bearing's rotational speed.

[0091] S204. Obtain the heat generation characteristic model of the oil seal according to the preset parameters of the oil seal, input the configuration parameters of the oil seal into the corresponding heat generation characteristic model to obtain the heat generation of the oil seal; jump to S205;

[0092] Specifically, the configuration parameters of the oil seal include the bearing speed; the preset parameters of the oil seal include the friction coefficient and the diameter of the oil seal.

[0093] Specifically, the heat generation characteristics model of an oil seal is expressed as follows:

[0094] Q3=γD s n / 9549

[0095] Where Q3 represents the heat generated by the bearing, γ represents the friction coefficient of the oil seal, and D s The value represents the oil seal diameter, and n represents the bearing rotational speed.

[0096] Furthermore, the coefficient of friction of the oil seal depends on the material of the oil seal. If it is a fluororubber oil seal, γ is taken as 3.737 × 10⁻⁶. -3 If it is a nitrile rubber oil seal, γ is taken as 2.429 × 10⁻⁶. -3 .

[0097] S205. Obtain the lubricant requirement of the moving parts based on the heat generated by the moving parts using the corresponding oil demand assessment model.

[0098] Specifically, the oil demand assessment model for moving parts includes:

[0099] V i =Q i / (C·ρ·λ i ·Δt i )

[0100] Where i = 1, 2, 3 represent gears, bearings, and oil seals, respectively, and V i Q represents the required amount of lubricating oil for the corresponding moving parts. i The values ​​represent the heat generated by the corresponding moving parts, C represents the specific heat capacity of the lubricating oil, ρ represents the density of the lubricating oil, and λ represents the specific heat capacity of the lubricating oil. i Δt represents the utilization coefficient of the corresponding moving parts. i This indicates the temperature rise of the lubricating oil after it passes through the corresponding moving parts.

[0101] Furthermore, the specific heat capacity of the lubricating oil is determined based on the gear oil type. If the gear oil type is 85W-90, C is taken as 1.94 kJ / kg*k, and ρ is taken as 870 kg / m³. 3 If the gear oil type is 75W-80, C is taken as 2.02kJ / kg*k, and ρ is taken as 835kg / m. 3 If the gear oil type is 75W-90, C is taken as 2.24 kJ / kg*k, and ρ is taken as 855 kg / m. 3 .

[0102] Furthermore, λ1 is set to 0.5, and Δt1 is set to 10℃;

[0103] Furthermore, λ2 and Δt2 are determined according to the type of bearing. If the bearing is a roller bearing, λ2 is 0.5 and Δt2 is 20℃; if the bearing is a ball bearing, λ2 is 1 and Δt2 is 20℃.

[0104] Furthermore, λ3 is set to 0.5, and Δt3 is set to 5℃.

[0105] As an example, assuming the gearbox uses GL-5 85W-90 heavy-duty vehicle gear oil, the specific heat capacity C of this lubricant is 1.94 kJ·kg. -1 ·K -1The density ρ of the lubricating oil is 870 kg·m³. -3 .

[0106] For oil seals, the lubricating oil utilization coefficient λ3 is taken as 0.5, and the heat exchange temperature difference Δt3 is taken as 5℃.

[0107] Assuming the oil seal diameter is 10mm, then according to the method of this embodiment, the required amount of lubricating oil for the oil seal is:

[0108]

[0109] This oil volume requirement can be further applied to the design of the lubrication system, meaning that under operating conditions, a lubricating oil flow rate of 0.556 L / min should be delivered to the oil seal. This will provide guidance for the design of the gearbox lubrication system and a basis for the control strategy of the gearbox oil pump equipped with an active lubrication system.

[0110] The method provided in this application embodiment can achieve the following technical effects:

[0111] In this embodiment, a heat generation characteristic model of the moving parts is created based on the structural parameters of the moving parts to obtain the heat generation of the corresponding parts. The specific heat capacity and density of the lubricating oil are determined based on the lubricating oil type. The corresponding utilization coefficient and temperature rise value are selected based on the structural parameters of the parts, thereby forming a lubricating oil quantity demand assessment model for the moving parts. The lubricating oil demand obtained based on the corresponding lubricating oil quantity demand assessment model is more accurate.

[0112] The embodiments of this application help to achieve precise lubrication of the gearbox, thereby avoiding failure problems caused by insufficient lubricating oil and heat generation problems caused by excessive lubricating oil, and ultimately achieving reliable and efficient operation of the gearbox with minimal oil.

[0113] The embodiments of this application can be applied to the design of gearbox lubrication systems and the control of active lubrication systems, providing a basis for gearbox oil pump control strategies that further equip gearboxes with active lubrication systems.

[0114] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0115] In this embodiment of the invention, electronic devices or main control devices can be divided into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software functional module. It should be noted that the module division in this embodiment of the invention is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0116] Figure 3 This application provides a schematic diagram of the structure of a gearbox lubricating oil demand determination device; as shown in the embodiments of this application. Figure 3 As shown, device 30 includes:

[0117] The parameter acquisition module 301 is used to acquire the configuration parameters of the moving parts of the gearbox; wherein the moving parts include gears, bearings, and oil seals.

[0118] The first model module 302 is used to obtain the heat generation of the moving parts based on the heat generation characteristic model of the moving parts according to the configuration parameters.

[0119] The second model module 303 is used to obtain the lubricant demand of the moving parts based on the heat generated by the moving parts through the corresponding oil demand assessment model.

[0120] Furthermore, the moving parts are gears, and the configuration parameters of the gears include the normal load on the gear, the thickness of the elastic dynamic oil film on the gear tooth surface, and the average rolling speed of the gear; the first model module 302 is also specifically used for:

[0121] The heat generation of the gear is obtained by substituting the configuration parameters of the gear into the heat generation characteristic model of the gear.

[0122] The heat generation characteristic model of gears is expressed as follows:

[0123] Q1 = Q H +Q R

[0124] Q H =0.329f Hm F n m n (1+z2 / z1)X E

[0125] Q R =9hV Tm / cosβ

[0126] Where Q1 represents the total heat generated by the gears, Q H and Q R These represent the sliding heat generation and rolling heat generation of the gear, respectively;

[0127] Among them, f Hm F represents the average sliding friction coefficient of the gear tooth surface. n The normal load on the gear is represented by m. n X represents the normal module of the gear. E This indicates the gear overlap ratio; z1 and z2 represent the number of teeth on the driving gear and driven gear, respectively.

[0128] Where h represents the thickness of the elastic dynamic oil film on the gear tooth surface, V Tm β represents the average rolling speed of the gear, and β represents the pitch circle helix angle of the gear.

[0129] Furthermore, the moving parts are bearings, and the bearing configuration parameters include the equivalent load and rotational speed of the bearing; the first model module 302 is also specifically used for:

[0130] The bearing's heat generation is obtained by substituting the bearing's configuration parameters into the bearing's heat generation characteristic model.

[0131] The heat generation characteristic model of the bearing is expressed as follows:

[0132] Q2 = fPD M n / 9549

[0133] Where Q2 represents the heat generated by the bearing, f represents the friction coefficient of the bearing, P represents the equivalent load of the bearing, and D... M 'n' represents the bearing's mean diameter, and 'n' represents the bearing's rotational speed.

[0134] Furthermore, the first model module 302 is specifically used for:

[0135] The heat generation of the bearing is obtained by substituting the configuration parameters of the oil seal into the heat generation characteristic model of the oil seal;

[0136] The heat generation characteristic model of the oil seal is expressed as follows:

[0137] Q3=γD s n / 9549

[0138] Where Q3 represents the heat generated by the bearing, and γ represents the friction coefficient of the oil seal; D s The value represents the oil seal diameter, and n represents the bearing rotational speed.

[0139] Furthermore, the moving parts are oil seals, and the configuration parameters of the oil seals include the bearing speed; the second model module 303 is also specifically used for:

[0140] The heat generated by the moving parts is substituted into the corresponding oil demand assessment model to obtain the lubricant demand of the moving parts.

[0141] The oil demand assessment model for moving parts includes:

[0142] V i =Q i / (C·ρ·λ i ·Δt i )

[0143] Where i = 1, 2, 3 represent gears, bearings, and oil seals, respectively, and V i Q represents the required amount of lubricating oil for the corresponding moving parts. i The values ​​represent the heat generated by the corresponding moving parts, C represents the specific heat capacity of the lubricating oil, ρ represents the density of the lubricating oil, and λ represents the specific heat capacity of the lubricating oil. i Δt represents the utilization coefficient of the corresponding moving parts. i This indicates the temperature rise of the lubricating oil after it passes through the corresponding moving parts.

[0144] Furthermore, the second model module 303 is specifically used for:

[0145] The parameters of the oil quantity requirement assessment model are determined based on the gear oil type, including:

[0146] If the gear oil type is 85W-90, C is taken as 1.94kJ / kg*k, and ρ is taken as 870kg / m. 3 ;

[0147] If the gear oil type is 75W-80, C is taken as 2.02kJ / kg*k, and ρ is taken as 835kg / m. 3 ;

[0148] If the gear oil type is 75W-90, C is taken as 2.24kJ / kg*k, and ρ is taken as 855kg / m. 3 .

[0149] Furthermore, λ1 is taken as 0.5, and Δt1 is taken as 10℃; if the bearing is a roller bearing, λ2 is taken as 0.5, and Δt2 is taken as 20℃; if the bearing is a ball bearing, λ2 is taken as 1, and Δt2 is taken as 20℃; λ3 is taken as 0.5, and Δt3 is taken as 5℃.

[0150] The gearbox lubricant demand determination device provided in this embodiment can execute the gearbox lubricant demand determination method described above. Its implementation principle and technical effect are similar, and will not be repeated here.

[0151] In the specific implementation of the aforementioned gearbox lubricant demand determination device, each module can be implemented as a processor. The processor can execute computer execution instructions stored in the memory, so that the processor executes the aforementioned gearbox lubricant demand determination method.

[0152] Figure 4This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 40 includes at least one processor 401 and a memory 402. The electronic device 40 also includes a communication component 403. The processor 401, memory 402, and communication component 403 are connected via a bus 404.

[0153] In the specific implementation process, at least one processor 401 executes computer execution instructions stored in memory 402, causing at least one processor 401 to execute a gearbox lubricant demand determination method as executed on the electronic device side as described above.

[0154] The specific implementation process of processor 401 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0155] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0156] The memory may include high-speed RAM, and may also include non-volatile storage (NVM), such as at least one disk storage.

[0157] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0158] The above description of the functions implemented by electronic devices and main control devices has introduced the solutions provided by the embodiments of the present invention. It is understood that, in order to implement the above functions, the electronic device or main control device includes hardware structures and / or software modules corresponding to the execution of each function. By combining the units and algorithm steps of the various examples described in the embodiments of the present invention, the embodiments of the present invention can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present invention.

[0159] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method for determining the required amount of gearbox lubricating oil.

[0160] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0161] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in an electronic device or a host device.

[0162] This application also provides a computer program product, comprising: a computer program stored in a readable storage medium, wherein at least one processor of an electronic device can read the computer program from the readable storage medium, and the at least one processor executes the computer program to cause the electronic device to perform the scheme provided in any of the above embodiments.

[0163] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for determining the required amount of lubricating oil for a gearbox, characterized in that, include: Obtain the configuration parameters of the moving parts of the gearbox; wherein, the moving parts include gears, bearings, and oil seals; The heat generation of the moving parts is obtained by using the heat generation characteristic model corresponding to each moving part based on the configuration parameters. The lubricant requirement of the moving parts is obtained based on the heat generated by the moving parts using a corresponding oil demand assessment model, including: The heat generated by the moving parts is substituted into the corresponding oil demand assessment model to obtain the lubricating oil demand of the moving parts. The oil demand assessment model for the moving parts includes: in, , respectively representing the gear, bearing and oil seal, This indicates the required amount of lubricating oil for the corresponding moving parts. This indicates the heat generated by the corresponding moving parts. This indicates the specific heat capacity of the lubricating oil. Indicates the density of lubricating oil. This represents the utilization coefficient of the corresponding moving parts. This indicates the temperature rise of the lubricating oil after passing through the corresponding moving parts; The parameters of the oil quantity requirement assessment model are determined based on the gear oil type.

2. The method according to claim 1, characterized in that, The moving component is the gear, and the configuration parameters of the gear include the normal load of the gear, the thickness of the elastic dynamic oil film on the tooth surface of the gear, and the average rolling speed of the gear. The step of obtaining the heat generation of the moving parts according to the configuration parameters through a heat generation characteristic model includes: The heat generation of the gear is obtained by substituting the configuration parameters of the gear into the heat generation characteristic model of the gear. The heat generation characteristic model of the gear is expressed as follows: in, This represents the total heat generated by the gears. and These represent the sliding heat generation and rolling heat generation of the gear, respectively; in, This represents the average sliding friction coefficient of the gear tooth surface. This indicates the normal load on the gear. This represents the normal module of the gear. Indicates the gear overlap ratio; and These represent the number of teeth on the driving gear and the driven gear, respectively. in, This indicates the thickness of the elastic dynamic oil film on the tooth surface of the gear. This represents the average rolling speed of the gear. This indicates the pitch circle helix angle of the gear.

3. The method according to claim 1, characterized in that, The moving component is the bearing, and the bearing's configuration parameters include the bearing's equivalent load and the bearing's rotational speed; obtaining the heat generation of the moving component based on the configuration parameters using a heat generation characteristic model includes: The heat generation of the bearing is obtained by substituting the configuration parameters of the bearing into the heat generation characteristic model of the bearing. The heat generation characteristic model of the bearing is expressed as follows: in, This indicates the heat generated by the bearing. This indicates the coefficient of friction of the bearing. Indicates the equivalent load on the bearing. Indicates the pitch diameter of the bearing. This indicates the rotational speed of the bearing.

4. The method according to claim 1, characterized in that, The moving component is the oil seal, and the configuration parameters of the oil seal include the rotational speed of the bearing; obtaining the heat generation of the moving component based on the configuration parameters through a heat generation characteristic model includes: The heat generation of the bearing is obtained by substituting the configuration parameters of the oil seal into the heat generation characteristic model of the oil seal; The heat generation characteristic model of the oil seal is expressed as follows: in, This indicates the heat generated by the bearing. Indicates the coefficient of friction of the oil seal; Indicates the diameter of the oil seal. This indicates the rotational speed of the bearing.

5. The method according to claim 1, characterized in that, Before obtaining the corresponding oil demand assessment model based on the moving parts, the method further includes: 。 6. The method according to claim 1, characterized in that, The parameters of the oil demand assessment model include: Take 0.5, Pick If the bearing is a roller bearing, Take 0.5 Pick If the bearing is a ball bearing, Take 1, Pick ; Take 0.5, Pick .

7. A device for determining the required amount of lubricating oil for a gearbox, characterized in that, include: The parameter acquisition module is used to acquire the configuration parameters of the moving parts of the gearbox; wherein, the moving parts include gears, bearings, and oil seals; The first model module is used to obtain the heat generation of the moving parts according to the configuration parameters through the heat generation characteristic model corresponding to each moving part; The second model module is used to obtain the lubricating oil requirement of the moving parts based on the heat generated by the moving parts through the corresponding oil requirement assessment model. The second model module is further used to substitute the heat generated by the moving parts into the corresponding oil demand assessment model to obtain the lubricating oil demand of the moving parts. The oil demand assessment model for the moving parts includes: in, , respectively representing the gear, bearing and oil seal, This indicates the required amount of lubricating oil for the corresponding moving parts. This indicates the heat generated by the corresponding moving parts. This indicates the specific heat capacity of the lubricating oil. Indicates the density of lubricating oil. This represents the utilization coefficient of the corresponding moving parts. This indicates the temperature rise of the lubricating oil after passing through the corresponding moving parts; The parameters of the oil quantity requirement assessment model are determined based on the gear oil type.

8. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1 to 6.

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