Brush wire pressure design method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of precision rotating machinery, in particular to a brush wire pressure design method and device, electronic equipment and a storage medium, and the brush wire pressure design method comprises the steps: building a mathematical model of a conductive ring and brush wires based on MATLAB; according to the mathematical model, the diameter of the conducting ring, the span of the brush wires and the distance between the brush carrier plate and the center of the conducting ring, the pressure borne by the brush wires in the free state and the conducting ring is calculated. The design time can be shortened, and pre-data support is provided for the design of the brush wire pressure of the conductive slip ring.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of precision rotary machinery, and particularly relates to a brush wire pressure design method and device, electronic equipment and a storage medium. BACKGROUND

[0002] As a key for signal transmission between relatively rotating structural members, the reliability of the electrical performance of the conductive slip ring affects the quality of signal transmission. The inside of the conductive slip ring usually adopts the form of friction contact between brush wires and a conductive ring to ensure the connection, and therefore the reliability of the friction contact affects the performance of the slip ring. A certain contact pressure is usually applied to the brush wires to ensure the reliability of the friction contact. Traditionally, the adjustment method for the brush wire pressure is to perform brush wire pressure tension measurement according to experience after the brush wires are inserted, or the state of the brush wires after insertion according to design experience can meet the use requirements. The above operations are difficult to meet the requirements as the conductive slip ring develops in the direction of precision, miniaturization and high speed. Therefore, the brush wire pressure needs to be accurately calculated to control the contact force between the brush wires and the conductive ring, and then the electrical performance of the slip ring is improved. SUMMARY

[0003] The application provides a brush wire pressure design method and device, electronic equipment and a storage medium to solve the problems in the background.

[0004] In a first aspect, the application provides a brush wire pressure design method, comprising:

[0005] establishing a mathematical model of a conductive ring and brush wires based on MATLAB;

[0006] calculating the pressure of the brush wires between the free state and the conductive ring according to the mathematical model, the diameter of the conductive ring, the brush wire span and the distance from the brush holder plate to the center of the conductive ring.

[0007] Further, the mathematical model of the conductive ring and the brush wires based on MATLAB comprises:

[0008] establishing the mathematical model of the conductive ring and the brush wires in MATLAB according to the brush wire material selection, the brush wire diameter selection, the diameter of the conductive ring, the brush wire span and the distance from the brush holder plate to the center of the conductive ring.

[0009] Further, it further comprises:

[0010] calculating the minimum length of the brush wires required in the free state according to the mathematical model, the diameter of the conductive ring, the brush wire span and the distance from the brush holder plate to the center of the conductive ring.

[0011] Further, it further comprises:

[0012] According to the mathematical model and the diameter of the conductive ring, the span of the brush wire, and the distance from the brush holder plate to the center of the conductive ring, the maximum deflection, the maximum deflection angle, and the maximum tensile stress value of the brush wire root at the contact point are calculated.

[0013] Further, it further comprises:

[0014] If the pressure is greater than the preset brush wire pressure, the angle of the brush wire pre-bending and the deflection value at the pre-bending and the free state are calculated according to the mathematical model.

[0015] Further, it further comprises:

[0016] According to the mathematical model, the minimum length of the brush wire required after pre-bending, the maximum deflection value after pre-bending, the maximum deflection angle after pre-bending, and the maximum stress value of the brush wire root after pre-bending are calculated.

[0017] Further, it further comprises:

[0018] According to the calculation results of the mathematical model, the deformation diagram of the brush wire is drawn on the MATLAB software interface.

[0019] The free state and pre-bending state brush wire pressure corresponding to different design parameters are obtained by analyzing and calculating different installation positions, different spans, and different brush wire materials through MATLAB software.

[0020] In a second aspect, the application provides a brush wire pressure design device, comprising:

[0021] A model establishing module is configured to establish a mathematical model of the conductive ring and the brush wire based on MATLAB.

[0022] A pressure calculating module is configured to calculate the pressure of the brush wire between the free state and the conductive ring according to the mathematical model and the diameter of the conductive ring, the span of the brush wire, and the distance from the brush holder plate to the center of the conductive ring.

[0023] In a third aspect, the application provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the brush wire pressure design method as described above when executing the computer program.

[0024] In a fourth aspect, the application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the brush wire pressure design method as described above.

[0025] The above technical solutions of the application have the following advantages:

[0026] The brush wire pressure design method provided in the first aspect of the application can reduce the design time and provide preliminary data support for the design of the brush wire pressure of the conductive slip ring by establishing a mathematical model of the conductive ring and the brush wire based on MATLAB, calculating the pressure suffered by the brush wire between the free state and the conductive ring according to the mathematical model and the diameter of the conductive ring, the brush wire span, and the distance size from the brush holder plate to the center of the conductive ring.

[0027] It can be understood that the beneficial effects of the second aspect, the third aspect and the fourth aspect described above can be referred to the related description in the first aspect described above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0029] Figure 1 The flowchart of the brush wire pressure design method provided by the present application is shown in the figure;

[0030] Figure 2 The brush wire free state and the conductive ring between the overlap condition diagram provided by the present application is shown in the figure;

[0031] Figure 3 The brush wire pre-folding state and the conductive ring between the overlap condition diagram provided by the present application is shown in the figure;

[0032] Figures 4-6 The MATLAB software operation interface provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0033] In the following description, specific details are set forth such as particular system configurations, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it should be apparent to those skilled in the art that the present application can be practiced in other embodiments without these specific details. In other instances, well-known systems, devices, circuits and methods have been described in detail in order to avoid unnecessary detail.

[0034] It should be understood that when used in the specification and the appended claims of the present application, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0035] In addition, in the description of the present application and the appended claims, the terms "first", "second", "third", etc. are used only to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0036] In the present application, the reference to "one embodiment" or "some embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in further some embodiments" and the like appearing in the present specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically emphasized. "Multiple" means "two or more".

[0037] The purpose of the present application is to provide a brush wire pressure design method, according to the established mathematical model of the conductive ring and the brush wire, to determine the technical parameters such as brush wire material, brush wire diameter, conductive ring diameter, brush wire span, and to calculate the brush wire pressure in free state and pre-folding state.

[0038] The specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0039] As shown in Figure 1 The brush wire pressure design method provided by the embodiments of the present application specifically includes the following steps: establishing a mathematical model of the conductive ring and the brush wire based on MATLAB; and calculating the pressure of the brush wire between the free state and the conductive ring according to the mathematical model and the diameter of the conductive ring, the brush wire span, and the distance from the brush holder plate to the center of the conductive ring.

[0040] In some embodiments, the mathematical model of the conductive ring and the brush wire based on MATLAB includes: establishing a mathematical model of the conductive ring and the brush wire in MATLAB according to the brush wire material selection, the brush wire diameter selection, the conductive ring diameter, the brush wire span, and the distance parameter from the brush holder plate to the center of the conductive ring.

[0041] In some embodiments, it further includes: calculating the minimum length of the brush wire required in the free state according to the mathematical model and the diameter of the conductive ring, the brush wire span, and the distance from the brush holder plate to the center of the conductive ring.

[0042] In some embodiments, further comprising: calculating the maximum deflection, maximum deflection angle, and maximum tensile stress value of the brush filament root at the contact point according to the mathematical model and the diameter of the conductive ring, the brush filament span, and the distance from the brush holder plate to the center of the conductive ring.

[0043] In some embodiments, further comprising: if the pressure is greater than the preset brush filament pressure, calculating the angle of the pre-bent brush filament, and the deflection value when pre-bent and in the free state according to the mathematical model.

[0044] In some embodiments, further comprising: calculating the minimum length of the brush filament required after pre-bending, the maximum deflection value after pre-bending, the maximum deflection angle, and the maximum stress value of the brush filament root after pre-bending according to the mathematical model.

[0045] In some embodiments, further comprising: drawing the deformation diagram of the brush filament on the MATLAB software interface according to the calculation results of the mathematical model; and analyzing and calculating different installation positions, different spans, and different brush filament materials to obtain the brush filament pressure in the free state and the pre-bent state corresponding to different design parameters through the MATLAB software.

[0046] A mathematical model of the conductive ring and the brush filament is established based on MATLAB, including brush filament material selection, brush filament diameter selection, conductive ring diameter, brush filament span, and distance from the brush holder plate to the center. According to these parameters, the model of the conductive ring and the brush filament is established in MATLAB through software, the pressure between the brush filament in the free state (i.e., the straight brush filament without bending) and the conductive ring is calculated, the minimum length of the brush filament required in the lapping state is calculated, and the maximum deflection, the maximum deflection angle, and the maximum tensile stress value of the brush filament root at the contact point are calculated.

[0047] When the calculated brush filament pressure is greater than the recommended brush filament pressure, the brush filament needs to be pre-bent to make the brush filament pressure at the last contact be the recommended brush filament pressure value. The angle of pre-bending, the deflection value when pre-bent and in the free state, and the minimum length of the brush filament required after pre-bending, the maximum deflection value after pre-bending, the maximum deflection angle, and the maximum stress value of the brush filament root after pre-bending are given through calculation. The strength of the brush filament is checked according to the calculated stress value, and the deformation diagram of the brush filament is drawn on the software interface. Different installation positions, different spans, and different brush filament materials are analyzed and calculated through the software to obtain the brush filament pressure in the free state and the pre-bent state corresponding to different design parameters.

[0048] The application has the advantages that the pressure between the brush wire and the conductive ring in the free state (i.e. the straight wire without bending), the minimum length of the brush wire required in the lapping state, the maximum deflection, the maximum deflection angle, the maximum tensile stress value of the brush wire root at the contact point can be calculated by inputting the material selection, the brush wire diameter, the conductive ring diameter and other parameters; the pre-bending angle, the deflection value in the pre-bending state and the free state, the minimum length of the brush wire required after pre-bending, the maximum deflection value after pre-bending, the maximum deflection angle and the maximum stress value of the brush wire root after pre-bending are calculated and given, the maximum stress of the brush wire is checked, the brush wire deformation diagram is drawn, the design time is reduced, and the design of the brush wire pressure of the conductive slip ring is provided with the pre-data support.

[0049] The application will be described below by means of specific embodiments.

[0050] Embodiment

[0051] There are two cases when calculating the brush wire pressure, the first case is the free state without pre-bending, and the second case is the analysis when the brush wire has a certain pre-bending angle.

[0052] (1) Free state without pre-bending

[0053] The state when the brush wire is perpendicular to the brush holder plate is defined as the free state without pre-bending, as shown in Figure 2 The force analysis when the brush wire is fixed on the brush holder plate and lapped with the conductive ring is shown in

[0054] EIω ‘’ (x)=M all (x)

[0055] Wherein, E represents the elastic modulus, I represents the sectional moment of inertia, and M represents the bending moment. The normal force F a can be decomposed into the horizontal force F h and the vertical force F v , and the maximum deflection under the action of F a is ω m , and the maximum deflection angle is θ m . Then the total bending moment is:

[0056] M all (x)=F h (L-x)+F v [ω m -ω(x)]

[0057] That is:

[0058] EIω ‘’ (x)=F h (L-x)+F v [ωm -ω(x)]

[0059] F h = F a cos θ

[0060] F v = F a sin θ

[0061] θ = θ m

[0062] Therefore, the above equations can be expressed as:

[0063] EIω ‘’ (x) = F a (L - x) cos(θ m ) + F a [ω m - ω(x)] sin(θ m )

[0064] The boundary conditions are:

[0065] ω ‘ (0) = 0 ω(0) = 0

[0066] ω ‘ (L) = θ m ω(L) = ω m

[0067] Through the above differential equation and characteristic solution, the brush wire deflection equation ω and the deflection angle equation θ can be obtained. Combined with the geometric conditions, the following equation group can be established:

[0068]

[0069] The brush wire pressure F and the brush wire initial length L in the above two equations are unknown, which can be solved by simultaneously solving the two equations. The L obtained in the above equation is not the actual brush wire length used, and the integral method is used to obtain the actual brush wire length used, which is denoted as L '

[0070]

[0071] F and L obtained by the above solving are brought into the above equation to obtain the actual required brush wire length.

[0072] When the brush wire pressure is large, and some parameters such as the diameter of the conductive ring, the brush wire material and cross-sectional size, the brush wire span, and the distance from the brush holder plate mounting surface to the center cannot be changed. At this time, if you want to reduce the brush wire pressure, you need to pre-fold the brush wire at a certain angle. The required bending deflection of the pre-folded brush wire is reduced, that is, the brush wire pressure will be reduced.

[0073] (2) with pre-folding brush wire pressure calculation

[0074] Figure 3 For the overlap between the pre-folding state of the brush wire and the conductive ring, the angle between the pre-folding state of the brush wire and the free state is recorded as the pre-folding angle θ0, in this case, the brush wire pressure F is known, according to the geometric relationship, we can get:

[0075]

[0076] In the above equation set, the diameter of the conductive ring, the brush wire material and the cross-sectional size, the brush wire span, the distance from the brush holder plate mounting surface to the center and the appropriate brush wire pressure F are known, the unknown quantities are the brush wire length L and the pre-folding angle θ0, which can be solved by the previous equation set, and then determine how to pre-fold the brush wire during installation. Similarly, the integral method can be used to solve the required brush wire length.

[0077] Based on the above brush wire pressure calculation principle, a brush wire pressure calculation program is developed, which is divided into two cases according to the initial state of the brush wire. The first is the brush wire pressure calculation under the free state, when the brush wire pressure is greater than the preset value, in order to meet the brush wire pressure after the overlap with the conductive ring is the preset pressure value, the brush wire needs to be pre-folded, that is, the second is to calculate the brush wire pre-folding angle.

[0078] The developed brush wire pressure calculation program includes the calculation of different brush wire materials and different brush wire diameters, by inputting basic size parameters such as the diameter of the conductive ring, the brush wire span, the distance from the brush holder plate to the center of the core shaft and the recommended brush wire pressure. By clicking the calculation button, the brush wire pressure under the non-pre-folding state, the required brush wire length, the maximum deflection and other information can be obtained, further clicking the draw button can see the actual overlap state of the brush wire and the conductive ring. When the calculated brush wire pressure is greater than the recommended brush wire pressure, the pre-folding angle calculation part will be started.

[0079] Through the set recommended brush wire pressure value, the above calculation method is used to calculate the brush wire pre-folding angle value that reaches the brush wire pressure value, by clicking the draw button, the brush wire pre-folding state and the actual bending state after the overlap can be drawn, and the required brush wire length value and other information under the brush wire pressure are updated. Click to generate report, the calculation results under the non-pre-folding and pre-folding states can be generated into a document report for other analysis. After the pre-folding angle is known, the used brush wire can be uniformly pre-folded, which can be completed by designing the wire forming tooling.

[0080] The application has the advantages that the brush wire pressure in free state and pre-folding state can be calculated by inputting the brush wire material, brush wire diameter, conductive ring diameter, brush wire span and distance from brush holder plate to center, the brush wire deformation diagram and strength check are drawn, the design time is reduced, and the design of brush wire pressure of conductive slip ring is provided with prior data support.

[0081] The application calculates the brush wire pressure in free state by the mathematical model of conductive ring and brush wire, and calculates the brush wire pre-folding angle to meet a certain brush wire pressure. Finally, a general brush wire pressure calculation and pre-folding angle calculation program is developed according to the calculation principle, and is visually displayed by graphics. The calculation result can provide reference for brush wire forming, so as to ensure the consistency and reliability of brush wire pressure.

[0082] The MATLAB software interface in initial state is shown in Figure 4 . Each parameter in the parameter input area is the parameter selected and input before the last exit. The brush wire material and brush wire diameter are selected, and the corresponding parameter value is input (note that the "recommended brush wire pressure" is the maximum normal contact force between the brush wire and the conductive ring. When the input parameter is illegal value, a prompt box will pop up, and there is no calculation result even if the "calculate" button is clicked, and the record display is recorded in the "calculation result record area". When the input parameter value is legal, click the "calculate" button, the panel name of "calculation result" is changed to "calculation result-pre-folding", and the values under "calculation result-pre-folding" are the calculation results of the input parameters.

[0083] The "calculation result record area" records all the input parameters and calculation result values of this time, and the "clear screen" button is used to clear the result values recorded in the "calculation result record area". When the brush wire pressure in the calculation result is greater than the recommended brush wire pressure, a "recalculation" panel will pop up at the bottom of the calculation program interface, which is used to calculate the requirements of brush wire pre-folding treatment under the recommended brush wire pressure. When the brush wire pressure calculated by the brush wire is less than or equal to the recommended brush wire pressure value, the "recalculation" panel is not displayed, because the input parameter meets the brush wire pressure requirement. At the same time, the "draw" button in the "parameter input and calculation" panel is in the available state, and clicking the button will display in the "brush wire and conductive ring lap joint diagram", as shown in Figure 5 .

[0084] Click the "calculate" button in the "recalculation" panel, the pre-folding angle value required for the brush wire treatment, the pre-folding deflection value, etc. will be displayed in the "recalculation" panel, and "calculation result-pre-folding" will be renamed as "calculation result-post-folding", including the brush wire length value required after pre-folding. The "recalculation" panel records the pre-folding parameters and the brush wire state parameters after pre-folding, etc. as shown in Figure 6 . The "draw" button in the "recalculation" panel becomes available.

[0085] Clicking the "draw" button, the "brush silk and conductive ring lap joint area" will display the state of the brush silk after pre-folding and the lap joint state after pre-folding. At the same time, the "separate display" checkbox appears in the "brush silk and conductive ring lap joint area", which can be selected to display the lap joint state after pre-folding alone or to display the brush silk lap joint state before and after pre-folding simultaneously. When the "draw" button in the "recalculate" panel is clicked, the "generate report" button becomes available, and clicking this button will automatically generate all the calculation results of the completed calculation. When the brush silk does not need to be pre-folded, the "generate report" button is available after the drawing in the "parameter input and calculation" is completed.

[0086] Corresponding to the brush silk pressure design method described in the above embodiment, the embodiment of the present application also provides a brush silk pressure design device, which comprises:

[0087] A model establishing module is configured to establish a mathematical model of the conductive ring and the brush silk based on MATLAB;

[0088] A pressure calculating module is configured to calculate the pressure of the brush silk between the free state and the conductive ring according to the mathematical model, the diameter of the conductive ring, the brush silk span, and the distance from the brush holder plate to the center of the conductive ring.

[0089] It should be noted that the information interaction and execution process between the above modules / units are based on the same concept as the method embodiments of the present application, and the specific functions and technical effects brought by them can be referred to the method embodiments part, which will not be repeated here.

[0090] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of functional units and modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit or module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be realized in the form of hardware or software function unit. In addition, the specific name of each functional unit or module is only for easy distinction, and does not limit the protection scope of the present application. The specific working process of the unit or module in the above system can be referred to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0091] The embodiment of the present application also provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the brush silk pressure design method provided by the first aspect when executing the computer program.

[0092] In applications, the electronic device can include, but is not limited to, a processor and a memory, can include more or fewer components, or combine some components, or different components, for example, input / output devices, network access devices, etc. The input / output device can include a camera, an audio acquisition / play device, a display screen, etc. The network access device can include a network module for wireless network with external devices.

[0093] In applications, the processor can be a central processing unit (CPU), and the processor can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0094] In applications, the memory can be an internal storage unit of the electronic device in some embodiments, for example, a hard disk or a memory of the electronic device. The memory can also be an external storage device of the electronic device in other embodiments, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device. The memory can include both the internal storage unit and the external storage device of the electronic device. The memory is used to store an operating system, application programs, a boot loader, data and other programs, for example, program codes of computer programs, etc. The memory can also be used to temporarily store data that has been output or will be output.

[0095] The embodiments of the present application also provide a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to implement the steps in each of the above method embodiments.

[0096] The computer program can be stored in a computer readable storage medium. The computer readable storage medium can be a floppy disk, a USB (Universal Serial Bus) flash disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic tape, a hard disk, an optical disc, a computer database, or the like.

[0097] Those skilled in the art can understand that the devices and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solutions. 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 present application.

[0098] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative, and in addition, the coupling or direct coupling or communication connection between the shown or discussed can be through some interface, indirect coupling or communication connection between devices can be electrical, mechanical or other forms.

[0099] The above-described embodiments are merely used to illustrate the technical solutions of the present application, but not limit the present application; even though the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method for designing brush bristle pressure, characterized in that, include: A mathematical model of the conductive ring and brush filaments was established based on MATLAB. Based on the mathematical model and the diameter of the conductive ring, the brush filament span, and the distance from the brush holder plate to the center of the conductive ring, the pressure exerted on the brush filaments in the free state between them and the conductive ring is calculated.

2. The brush bristle pressure design method as described in claim 1, characterized in that, The mathematical model of the conductive ring and brush filaments based on MATLAB includes: Based on the parameters of brush bristle material selection, brush bristle diameter selection, conductive ring diameter, brush bristle span, and distance from the brush holder plate to the center of the conductive ring, a mathematical model of the conductive ring and brush bristles is established in MATLAB.

3. The brush bristle pressure design method as described in claim 1, characterized in that, Also includes: Based on the mathematical model and the diameter of the conductive ring, the filament span, and the distance from the brush holder plate to the center of the conductive ring, the minimum filament length required in the free state is calculated.

4. The brush bristle pressure design method as described in claim 1, characterized in that, Also includes: Based on the mathematical model and the diameter of the conductive ring, the brush filament span, and the distance from the brush holder plate to the center of the conductive ring, calculate the maximum deflection, maximum deflection angle, and maximum tensile stress value at the contact point of the brush filament.

5. The brush bristle pressure design method as described in claim 1, characterized in that, Also includes: If the pressure is greater than the preset bristle pressure, the pre-bending angle of the bristles and the deflection values ​​during pre-bending and in the free state are calculated according to the mathematical model.

6. The brush bristle pressure design method as described in claim 5, characterized in that, Also includes: The minimum bristle length required after pre-folding, the maximum deflection value, the maximum deflection angle, and the maximum stress value at the root of the bristles after pre-folding are calculated based on the mathematical model.

7. The brush bristle pressure design method as described in claim 1, characterized in that, Also includes: Based on the calculation results of the mathematical model, the deformation diagram of the brush bristles is plotted in the MATLAB software interface; The free and pre-folded bristle pressures corresponding to different design parameters were obtained by analyzing and calculating different installation positions, spans, and bristle materials using MATLAB software.

8. A brush bristle pressure design device, characterized in that, include: The model building module is used to build mathematical models of conductive rings and brush filaments based on MATLAB. The pressure calculation module is used to calculate the pressure exerted on the brush bristles in the free state between them and the conductive ring, based on the mathematical model and the diameter of the conductive ring, the bristle span, and the distance from the brush holder plate to the center of the conductive ring.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the brush pressure design method as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the brush pressure design method as described in any one of claims 1 to 7.

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