A modular solution preparation and electro-controlled friction regulation integrated device

Abstract

This application provides an integrated modular solution preparation and electro-controlled friction regulation device. A base liquid supply module supplies the base liquid; a single-component lubricant preparation module prepares and stores at least two single-component lubricants; a compound lubricant preparation module prepares and stores a compound lubricant; a compound lubricant disposal module supplies the compound lubricant to an external friction experiment device; and a residual liquid is extracted and cleaned after the friction experiment. A real-time monitoring module collects experimental data, and an external voltage module generates a stable electric field during the friction experiment to regulate the interfacial behavior of the compound lubricant molecules. A main control module adjusts the electric field strength based on the experimental data to control the ratio and flow rate of the compound lubricant throughout the preparation process. This invention, through its highly integrated and modular design, overcomes the shortcomings of traditional electro-controlled friction experiments, such as dispersed structures and cumbersome operation, achieving integrated operation and closed-loop control, significantly improving experimental / engineering efficiency.

Description

Technical Field

[0001] This application relates to the field of electro-friction experimental technology, and more specifically, to an integrated device for modular solution preparation and electro-friction control. Background Technology

[0002] Tribology, an interdisciplinary field that studies friction, wear, and lubrication behavior between contact interfaces of objects, is widely used in many key technology areas such as mechanical engineering, automotive manufacturing, microelectronics, biomedicine, aerospace, intelligent robotics, and energy equipment. The frictional performance between friction pairs directly affects energy conversion efficiency, system stability, and component lifespan. Especially under dynamic loads, variable speeds, microscale conditions, or extreme environments, high-precision, programmable control of frictional behavior has become a core means to improve system performance.

[0003] To achieve active regulation of the friction process, various novel friction control technologies have been proposed in recent years, among which active lubrication regulation based on electric fields has gradually become a research hotspot. This type of technology induces the orderly adsorption or desorption of functional components such as ionic liquids and surfactants in the lubricant at the friction interface by applying an external voltage or electric field, thereby altering the lubrication state and interfacial friction characteristics. This method features fast response, a wide adjustable range, strong reversibility, and user-friendly intelligent control, providing a theoretical foundation and technical pathway for future intelligent friction regulation systems.

[0004] Despite significant progress in experimental research, electro-lubrication technology still faces numerous technical bottlenecks and implementation obstacles in its advancement towards practical engineering applications and industrialization. These obstacles are mainly manifested as follows:

[0005] (1) Poor adaptability of lubrication systems. Existing electronically controlled lubrication technologies are mostly limited to the use of specific types of lubricants, such as single ionic liquids or certain types of surfactants, which are difficult to adapt to diverse industrial lubrication needs. In actual engineering, lubricants need to meet multiple conditions such as base oil type (e.g., water-based, oil-based), polarity, chemical stability, safety, and environmental friendliness. At present, there is a lack of a universal system platform that supports the formulation and dynamic switching of multi-component lubricants.

[0006] (2) The devices are scattered and have low integration. Most existing electro-controlled friction test equipment has a non-standardized and non-integrated structure, usually dispersing liquid preparation, electro-control adjustment and friction testing in multiple independent devices. This "combined" system is inefficient in operation, has high system response delay, large error accumulation, and does not have the ability to operate stably for a long time, which seriously restricts its deployment and application in engineering practice.

[0007] (3) Lack of verification of stability and reliability. Most studies only conduct short-term tests on the behavior of electro-lubrication under ideal experimental conditions. They have not yet solved the problems that lubrication systems may face in long-term, high-load, complex temperature and pressure environments, such as electric field control failure and lubricant structure damage. There is a lack of systematic stability verification and failure tolerance mechanisms for industrial conditions.

[0008] (4) Lack of standardized control strategies and response models. Different friction pair materials exhibit highly nonlinear and individualized responses under the action of an electric field. Currently, a systematic "material-lubricant-electric field" control parameter model or database has not been established. This problem leads most electronically controlled friction systems to rely on experience-based settings and manual adjustments, lacking automated and intelligent control capabilities, which seriously restricts their large-scale deployment and general application.

[0009] (5) Difficult to meet the needs of industrial scale and automatic control. The actual industrial environment puts forward strict requirements for lubrication control systems, such as high level of automation, fast response speed, stability and reliability, and standardized interfaces (such as compatibility with PLC or DCS systems). However, most existing scientific research devices lack the ability to seamlessly connect with industrial control systems and cannot meet the needs of automated production lines for lubrication control modules with functions such as "plug and play", "intelligent feedback" and "fault self-diagnosis", making it difficult to achieve standardization and mass production deployment. In summary, at present, electro-friction technology still has obvious shortcomings in terms of precise lubricant formulation, active electric field control, system module integration and engineering adaptability, and has not yet formed a complete solution that can be directly applied to industrial production. Summary of the Invention

[0010] The purpose of this application is to provide a modular solution preparation and electronic friction control integrated device, so that the device integrates the precise preparation of multi-component lubricating fluid, real-time electric field control and feedback mechanism, and aims to conveniently realize solution compounding and high-precision, programmable dynamic adjustment of friction performance.

[0011] To achieve the above objectives, the embodiments of this application are implemented in the following manner:

[0012] In a first aspect, embodiments of this application provide an integrated modular solution preparation and electronic friction control device, comprising: a housing; a support frame disposed within the housing; a base fluid supply module disposed on the support frame for supplying a base fluid; a single-component lubricant preparation module disposed on the support frame and connected to the base fluid supply module for preparing and storing at least two single-component lubricants; a compound lubricant preparation module disposed on the support frame and connected to the single-component lubricant preparation module for preparing and storing a compound lubricant based on the at least two single-component lubricants provided by the single-component lubricant preparation module; and a compound lubricant disposal module connected to the compound lubricant preparation module and connected to the base fluid supply module for supplying the compound lubricant prepared by the compound lubricant preparation module to an external friction device. The system includes: a friction experiment apparatus for extracting residual liquid and cleaning after the friction experiment; a real-time monitoring module for collecting experimental data from the external friction experiment apparatus during the friction experiment, including energy consumption information of the external friction experiment apparatus; an external voltage module for generating a stable electric field to regulate the interfacial behavior of the compound lubricant molecules during the friction experiment; and a main control module for receiving experimental data collected by the real-time monitoring module, adjusting the electric field strength of the external voltage module based on the experimental data, and controlling the ratio and flow rate of the compound lubricant throughout the entire compound lubricant preparation process, which includes both single-component lubricant preparation and compound lubricant preparation processes.

[0013] In conjunction with the first aspect, in a first possible implementation of the first aspect, the support structure is multi-layered, and the single-component lubricant preparation module includes at least two sets of single-component lubricant preparation units. Each single-component lubricant preparation unit includes a lubricant concentrate storage tank, a support with a quality monitoring sensor, a single-component lubricant preparation tank, a solution information detection device, and a stirring mechanism. Each support with a quality monitoring sensor is located on the top layer of the support and communicates with the main control module. Each lubricant concentrate storage tank is located on the corresponding support with a quality monitoring sensor, and each lubricant concentrate storage tank is equipped with an automatic control valve and communicates with the main control module. Each single-component lubricant preparation tank is located on... The second layer of the support is located below the corresponding lubricant raw material storage tank and is connected to the corresponding lubricant raw material storage tank through a pipe. Each single-component lubricant preparation tank is also connected to the base liquid supply module, which communicates with the main control module. Each solution information detection device is installed on the wall of the corresponding single-component lubricant preparation tank and communicates with the main control module to detect the concentration and temperature information of the single-component lubricant during the preparation process within the tank. Each stirring mechanism is installed inside the corresponding single-component lubricant preparation tank and is controlled by the main control module to stir and promote the mutual solubility of the solutions within the tank.

[0014] In conjunction with the first possible implementation of the first aspect, in the second possible implementation of the first aspect, the compound lubricant preparation module includes at least one set of compound lubricant preparation units. Each set of compound lubricant preparation units includes a single-component lubricant supply system, a compound lubricant preparation tank, a solution information detection device, and a high-speed stirring device. The compound lubricant preparation tank is located on the second layer of the support and is connected to each single-component lubricant preparation tank through the single-component lubricant supply system. The single-component lubricant supply system communicates with the main control module. The solution information detection device is located on the wall of the compound lubricant preparation tank and communicates with the main control module. It is used to detect the concentration and temperature information of the compound lubricant during the preparation process in the compound lubricant preparation tank. The high-speed stirring device is located inside the compound lubricant preparation tank and is controlled by the main control module. It is used to stir and promote the mutual solubility of the solutions in the compound lubricant preparation tank.

[0015] In conjunction with the second possible implementation of the first aspect, in the third possible implementation of the first aspect, the single-component lubricant preparation module includes two sets of single-component lubricant preparation units, the compound lubricant preparation module includes two sets of the compound lubricant preparation units, and the single-component lubricant supply system includes two sets of single-component lubricant supply units. Each single-component lubricant supply unit includes a pump, a single-component lubricant supply pipeline, a single-inlet dual-outlet electrically controlled valve, and a flow monitor. For each single-component lubricant supply unit: the inlet pipe of the single-component lubricant supply pipeline... One end of the single-component lubricant supply pipeline is connected to the outlet of the corresponding single-component lubricant preparation tank, and the other end of the inlet pipe of the single-component lubricant supply pipeline is connected to the inlet of the pump. The outlet of the pump is connected to the inlet of the single-inlet dual-outlet solenoid valve. The single-inlet dual-outlet solenoid valve and the pump are controlled by the main control module. The flow monitoring instrument is installed at the inlet of the single-inlet dual-outlet solenoid valve and communicates with the main control module. The two outlet pipes of the single-component lubricant supply pipeline are each connected to one outlet of the single-inlet dual-outlet solenoid valve and the compound lubricant preparation tank of the compound lubricant preparation unit.

[0016] In conjunction with the second possible implementation of the first aspect, in the fourth possible implementation of the first aspect, the base fluid supply module includes a base fluid storage tank and a base fluid supply system. The base fluid supply system includes a number of base fluid supply units corresponding to the number of sets of single-component lubricant preparation units. The base fluid storage tank is located at the bottom of the support and is used to store base fluid, wherein the base fluid is base oil or deionized water. Each set of base fluid supply units is connected to the base fluid storage tank and the corresponding single-component lubricant preparation tank, and communicates with the main control module to accurately supply base fluid to the corresponding single-component lubricant preparation tank.

[0017] In conjunction with the fourth possible implementation of the first aspect, in the fifth possible implementation of the first aspect, each set of the base liquid supply unit includes a pump, a connecting pipe, a base liquid supply pipe, an electronic flow controller, and a six-nozzle annular pipe. The pump inlet is connected to the base liquid storage tank via the connecting pipe, and the pump outlet is connected to the base liquid supply pipe, which in turn is connected to the six-nozzle annular pipe. The electronic flow controller is located at the connection between the base liquid supply pipe and the six-nozzle annular pipe and communicates with the main control module to precisely control the base liquid supply. The top side of the single-component lubricant preparation tank is surrounded by a six-nozzle annular pipe interface connected to the six-nozzle annular pipe, and the six-nozzle annular pipe is connected to the six-nozzle annular pipe interface.

[0018] In conjunction with the fourth possible implementation of the first aspect, in the sixth possible implementation of the first aspect, the compound lubricant disposal module includes a compound lubricant supply unit, a supply nozzle, a rinsing unit, a rinsing nozzle, a suction unit, a suction nozzle, and a waste liquid tank. The supply nozzle is connected to the compound lubricant preparation tank through the compound lubricant supply unit. The compound lubricant supply unit is controlled by the main control module and is used to supply the compound lubricant to an external friction testing device through the supply nozzle. The rinsing nozzle is connected to the base liquid storage tank through the rinsing unit. The rinsing unit is controlled by the main control module and is used to rinse with base liquid through the rinsing nozzle. The waste liquid tank is located at the bottom of the support. The suction nozzle is connected to the waste liquid tank through the suction unit. The suction unit is controlled by the main control module and is used to suck waste liquid into the waste liquid tank through the suction nozzle.

[0019] In conjunction with the sixth possible implementation of the first aspect, in the seventh possible implementation of the first aspect, the compound lubricant preparation module includes two sets of compound lubricant preparation units. The compound lubricant supply unit includes a supply connection pipe, a dual-inlet single-outlet electrically controlled valve, two compound lubricant supply pipes, two pumps, and two flow monitors. The inlet of each pump is connected to a compound lubricant preparation tank through one of the compound lubricant supply pipes. The outlet of each pump is connected to one inlet of the dual-inlet single-outlet electrically controlled valve. The outlet of the dual-inlet single-outlet electrically controlled valve is connected to the supply nozzle through the supply connection pipe. Each pump is controlled by the main control module, and the dual-inlet single-outlet electrically controlled valve is controlled by the main control module. Each flow monitor is located at the connection point between its corresponding pump and the dual-inlet single-outlet electrically controlled valve, and each flow monitor communicates with the main control module.

[0020] In conjunction with the first aspect, in the eighth possible implementation of the first aspect, the external voltage module for the friction experiment includes: a regulated power supply, disposed on the third layer of the bracket and connected to the main control module; a working electrode, connected to the positive output port of the regulated power supply via a power supply wire; and an auxiliary electrode, connected to the negative output port of the regulated power supply via a power supply wire.

[0021] In conjunction with the first aspect, in the ninth possible implementation of the first aspect, a side frame is further provided on one side of the bracket, the side frame is located on the outside of the housing, the main control module includes a workstation and a display screen, the workstation is mounted on the side frame; the display screen is embedded in the housing and connected to the workstation.

[0022] Beneficial effects:

[0023] (1) The present invention supplies base liquid through base liquid supply module, prepares and stores at least two single-component lubricants using single-component lubricant preparation module, prepares and stores compound lubricant using compound lubricant preparation module based on at least two single-component lubricants provided by single-component lubricant preparation module, supplies compound lubricant prepared by compound lubricant preparation module to external friction test device using compound lubricant disposal module, and is used to extract residual liquid and clean after friction test; collects experimental data (including energy consumption information of external friction test device) of external friction test device during friction test using real-time monitoring module, designs friction test external voltage module, generates stable electric field to regulate the interface behavior of compound lubricant molecules during friction test of external friction test device; and the main control module receives experimental data collected by real-time monitoring module, adjusts electric field strength of friction test external voltage module according to experimental data, and is used to control the ratio and flow rate in the whole process of compound lubricant preparation (including single-component lubricant preparation process and compound lubricant preparation process). This invention, through a highly integrated and modular design, integrates multiple functional modules such as lubricant preparation, voltage control, friction testing, data acquisition and feedback control. It overcomes the shortcomings of traditional equipment in conducting electrical friction experiments, which are characterized by dispersed structures and cumbersome operations, and achieves "integrated operation and closed-loop control", significantly improving system stability and experimental / engineering efficiency.

[0024] (2) Achieving high-precision dynamic control of friction performance: This invention uses electrochemical active control methods (real-time monitoring module, friction experiment external voltage module, and main control module working together) to adjust the interfacial adsorption behavior of active molecules in the lubricant in real time, thereby continuously, reversibly, and programmably controlling the friction coefficient between the friction pair (components in the external friction experiment device, which is connected to the main control module of this device), meeting the requirements for fine control of friction performance under dynamic loads, variable speed motion, and complex working conditions.

[0025] (3) Supports intelligent proportioning and preparation of multi-component lubricants. This equipment can achieve high-precision, programmable formulation of various lubricating components such as anionic / cationic surfactants, ionic liquids, and base oils (water-based or oil-based). It has the ability to quickly switch and flexibly adjust, effectively expanding the freedom of lubricant system design and meeting the needs of different friction pairs and lubrication.

[0026] (4) It can realize industrial-grade automation and remote control. The equipment is designed with standardized interfaces and intelligent control systems, which can be seamlessly connected with automation platforms such as PLC and DCS. It supports programmed control, remote management, data recording and parameter self-learning, and is suitable for automation scenarios such as smart manufacturing and Industry 4.0.

[0027] (5) Adaptable to various friction pair material combinations. The device of this invention is compatible with friction systems between conductive materials (such as copper, steel, aluminum, etc.) and non-conductive materials (such as polymers, ceramics, composite materials, etc.), significantly improving the material versatility and application scope of the device, and suitable for complex and diverse engineering practice requirements. In the research of electro-controlled friction, traditional solutions require at least one end of the friction pair to be a conductive material, such as conductor / ceramic or conductor-conductor. However, this device can indirectly apply an electric field to non-conductive materials, such as ceramic / ceramic, to achieve the application of an external electric field. However, it is also possible to directly apply an electric field to conductive materials. Reflected on the external device, to apply an electric field to a conductive material: the working electrode / auxiliary electrode is directly connected to the working component, and the contact position where the working components move relative to each other needs to be filled with lubricating fluid; to apply an electric field to non-conductive materials such as ceramic bearings: the working electrode / auxiliary electrode needs to be partially immersed in the lubricating fluid, and the two electrode fluids need to be installed separately according to the working surface to achieve solution conductivity.

[0028] (6) Improve the reliability and energy efficiency of the lubrication system. This equipment provides electrically controlled external friction conditions. Its function is to adjust the friction coefficient of external equipment (such as friction testing equipment, industrial robot arms, etc.) in real time. Of course, it can also replace external industrial equipment with high-efficiency friction testing equipment. For external equipment that is friction testing equipment, this equipment can provide an efficient experimental environment. For external equipment that is more industrialized (such as industrial robot arms), by controlling the lubrication state and friction behavior in real time during the operation of external equipment, it can effectively reduce wear and energy loss, improve the operating efficiency and stability of the mechanical system, extend the service life of external equipment, and has significant energy saving, consumption reduction and maintenance cost reduction effects.

[0029] (7) Promoting the industrialization of electro-controlled friction technology. This invention provides a systematic solution to the key difficulties of existing electro-controlled friction technology in practical applications (such as limited lubricant preparation, incompatible control systems, and poor stability), and provides a feasible technical platform for its large-scale application in the industrial field.

[0030] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the overall structure of an integrated modular solution preparation and electronically controlled friction regulation device.

[0033] Figure 2 A schematic diagram of the main structure of an integrated modular solution preparation and electro-friction control device.

[0034] Figure 3 This is a rear view of the main structure.

[0035] Figure 4 This is the right view of the main structure.

[0036] Figure 5 This is the front view of the main structure.

[0037] Figure 6 This is a diagram showing the coordination relationship between the modules of a modular solution preparation and electro-friction control integrated equipment.

[0038] Figure 7 This is a schematic diagram of the support structure.

[0039] Figure 8 This is a cross-sectional view of a single-component lubricant preparation tank.

[0040] Figure 9 This is a schematic diagram of a compound lubricant preparation tank.

[0041] Figure 10 This is a schematic diagram of the interior of the compound lubricant preparation tank.

[0042] Figure 11 The results are for electro-controlled friction in a 0.5 mM compound system.

[0043] Figure 12 The results are for electro-controlled tribology in a compound system with a concentration of 4.0 mM.

[0044] Figure 13 The results of electro-controlled friction in oil-based lubricants with different additives.

[0045] Icons: 100 - Modular solution preparation and electro-friction control integrated equipment; 110 - Shell; 120 - Support; 121 - Top layer; 122 - Second layer; 123 - Third layer; 124 - Bottom layer; 125 - Side frame; 130 - Base liquid supply module; 131 - Base liquid storage tank; 1311 - Base liquid replenishment port; 132 - Base liquid supply system; 1321 - Connecting pipe; 1322 - Base liquid supply pipe; 1323 - Six-nozzle annular pipe; 140 - Single-component lubricant preparation module; 141 - Lubricant raw material storage tank; 142 - Support with quality monitoring sensor; 143 - Single-component lubricant preparation tank; 144 - Stirring mechanism; 1441 - Stirring motor; 1442 - Bearing seat; 1443 - Bearing; 1444 - Stirring shaft; 1445 - Blades; 150 - Compound lubricant preparation module; 151 - Single-component lubricant supply system; 152 - Compound lubricant preparation tank; 1521 - Tank cover; 153 - Solution information detection device; 154 - High-speed stirring device; 160 - Compound lubricant disposal module; 161 - Compound lubricant supply unit; 162 - Liquid supply nozzle; 163 - Flushing unit; 164 - Flushing nozzle; 165 - Sludge suction unit; 166 - Sludge suction nozzle; 167 - Waste liquid tank; 1671 - Sludge outlet; 170 - Real-time monitoring module; 180 - Friction test external voltage module; 181 - Stabilized power supply; 182 - Working electrode; 183 - Auxiliary electrode; 190 - Main control module; 191 - Workstation; 192 - Display screen. Detailed Implementation

[0046] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0047] Please see Figures 1-6 , Figure 1 This is a schematic diagram of the overall structure of the modular solution preparation and electro-controlled friction regulation integrated device 100 provided in this embodiment of the application. Figure 2 A schematic diagram of the main structure of a modular solution preparation and electro-controlled friction regulation integrated device 100. Figure 3 This is the rear view of the main structure. Figure 4 This is the right view of the main structure. Figure 5 This is the front view of the main structure. Figure 6 This is a diagram showing the coordination relationship between the modules of the modular solution preparation and electro-friction control integrated equipment 100.

[0048] In this embodiment, the modular solution preparation and electronic friction control integrated device 100 may include a housing 110, a support 120, a base liquid supply module 130, a single-component lubricant preparation module 140, a compound lubricant preparation module 150, a compound lubricant disposal module 160, a real-time monitoring module 170, a friction test applied voltage module 180, and a main control module 190.

[0049] Please see Figure 7 The bracket 120 is set inside the housing 110 and has a multi-layer structure (in this embodiment, it is considered to be a 4-layer structure, with a top layer 121, a second layer 122, a third layer 123, and a bottom layer 124). A side frame 125 is also provided on one side of the bracket 120. When the bracket 120 is set inside the housing 110, the side frame 125 is located outside the housing 110 and is used to place some structures (in this embodiment, the side frame 125 is used to place the workstation 191 of the main control module 190, i.e., the PC).

[0050] Please see Figures 2-5 In this embodiment, the base liquid supply module 130 is mounted on the bracket 120 and is used to supply base liquid. The base liquid can be deionized water used to prepare water-based lubricants or base oil used to prepare oil-based lubricants. Generally, only one type of base liquid is used in the same equipment: compound lubricants are compounded from single-component lubricants that belong to water-based lubricants or from single-component lubricants that belong to oil-based lubricants.

[0051] The single-component lubricant preparation module 140 is also mounted on the bracket 120 and is connected to the base fluid supply module 130. It is used to prepare and store at least two single-component lubricants.

[0052] For example, the single-component lubricant preparation module 140 may include at least two sets of single-component lubricant preparation units (the device provided in this embodiment is equipped with two sets of single-component lubricant preparation units; other embodiments may also provide more, thereby preparing more types of single-component lubricants to achieve the compounding of more complex component compound lubricants). Each set of single-component lubricant preparation units includes a lubricant raw material storage tank 141, a support 142 with a quality monitoring sensor, a single-component lubricant preparation tank 143, a solution information detection device 153, and a stirring mechanism 144.

[0053] Each support 142 with a quality monitoring sensor is installed on the top layer 121 of the bracket 120 (the top layer 121 of the bracket 120 is provided with a crossbeam, and the crossbeam has two positions for installing the support 142 with the quality monitoring sensor, with a through hole in the center of the position for the pipe to pass through). The quality monitoring sensor communicates with the main control module 190.

[0054] Each lubricant concentrate storage tank 141 is mounted on a corresponding support 142 with a quality monitoring sensor, and each lubricant concentrate storage tank 141 is equipped with an automatic control valve that communicates with the main control module 190. Each lubricant concentrate storage tank 141 stores lubricant concentrate (surfactants, such as SDS, CTAB, etc.), and of course, the type of lubricant concentrate stored in each lubricant concentrate storage tank 141 is different.

[0055] Each single-component lubricant preparation tank 143 is located on the second layer 122 of the support 120, below the corresponding lubricant concentrate storage tank 141, and is connected to the corresponding lubricant concentrate storage tank 141 via a pipe (the pipe passes through a through hole in the crossbar). Each single-component lubricant preparation tank 143 is also connected to a base fluid supply module 130, which communicates with the main control module 190. The volume of each single-component lubricant preparation tank 143 is 1–10 L.

[0056] Each solution information detection device 153 (which needs to perform temperature and concentration detection, and can be a temperature and concentration monitor or a separate temperature sensor and concentration sensor) is installed on the wall of the corresponding single-component lubricant preparation tank 143 (if it is a separate temperature sensor and concentration sensor, the temperature sensor and concentration sensor can be set together or separately). The solution information detection device 153 communicates with the main control module 190 to detect the concentration and temperature information of the single-component lubricant during the preparation process in the single-component lubricant preparation tank 143.

[0057] Each stirring mechanism 144 is installed in the corresponding single-component lubricant preparation tank 143 and is controlled by the main control module 190. It is used to stir and promote the mutual solubility of the solutions in the single-component lubricant preparation tank 143.

[0058] like Figure 8 As shown, each single-component lubricant preparation tank 143 is supported by a stirring motor 1441 with a base. The stirring motor 1441 is fixedly mounted on the second layer 122 of the bracket 120 via the base. The rotating shaft of the stirring motor 1441 is engaged with a stirring shaft 1444 inside the single-component lubricant preparation tank 143 via a pin. The stirring shaft 1444 is fixed to the center of the single-component lubricant preparation tank 143 via a bearing 1443 and a bearing seat 1442. Blades 1445 are vertically mounted on the stirring shaft 1444. The operation of the stirring motor 1441 drives the stirring shaft 1444 to rotate, promoting the miscibility of the solutions inside the single-component lubricant preparation tank 143. It should be noted that... Figure 8 The cross-section does not show the solution information detection device 153. The stirring motor 1441 has a speed range of 500 to 1000 rpm.

[0059] In this embodiment, the compound lubricant preparation module 150 is mounted on the bracket 120 and communicates with the single-component lubricant preparation module 140. It is used to prepare and store the compound lubricant based on at least two single-component lubricants provided by the single-component lubricant preparation module 140.

[0060] Please see Figures 2-5The compound lubricant preparation module 150 includes at least one compound lubricant preparation unit. Each compound lubricant preparation unit includes a single-component lubricant supply system 151, a compound lubricant preparation tank 152, a solution information detection device 153, and a high-speed stirring device 154.

[0061] The compound lubricant preparation tank 152 is located on the second layer 122 of the bracket 120 and is connected to each single-component lubricant preparation tank 143 via a single-component lubricant supply system 151, which communicates with the main control module 190. To facilitate fixing the compound lubricant preparation tank 152, the second layer 122 of the bracket 120 is equipped with a limiting structure (such as...) for the compound lubricant preparation tank 152. Figure 7 As shown, this is the part fixedly supported on the second layer 122 of the bracket 120. The missing part of the limiting structure matches the outer shape and size of the compound lubricant preparation tank 152, thereby achieving fixed limiting of the compound lubricant preparation tank 152. In this embodiment, the cross-section of the compound lubricant preparation tank 152 is approximately square; therefore, the missing part of the limiting structure is also square (e.g., Figure 7 (As shown). The volume of the compound lubricant preparation tank 152 is 500-2000 mL.

[0062] like Figure 9 and Figure 10 As shown, the solution information detection device 153 is installed on the wall of the compound lubricant preparation tank 152 and communicates with the main control module 190. It is used to detect the concentration and temperature information of the compound lubricant during the preparation process in the compound lubricant preparation tank 152. The solution information detection device 153 here is the same as the solution information detection device 153 installed in the single-component lubricant preparation tank 143, and will not be described again here.

[0063] A high-speed stirring device 154 is installed inside the compound lubricant preparation tank 152 and is controlled by the main control module 190. It is used to stir and promote the miscibility of the solutions within the compound lubricant preparation tank 152. The high-speed stirring device 154 differs from the stirring mechanism 144 of the single-component lubricant preparation tank 143. A compound lubricant preparation tank 152 uses two stirring structures (high-speed stirring motor 1441, stirring shaft 1444, blades 1445, etc.), which are arranged separately to improve the compounding efficiency. The high-speed stirring motor 1441 has a speed range of 1000–2000 rpm.

[0064] In addition, the compound lubricant preparation tank 152 has a cover 1521, on which inlets for single-component lubricants are opened. The number of inlets corresponds to the number of single-component lubricant preparation tanks 143. In this embodiment, there are two single-component lubricant preparation tanks 143. Therefore, the number of inlets on the cover 1521 of the compound lubricant preparation tank 152 is also designed to be two, but this should not be regarded as a limitation of this application.

[0065] To improve experimental efficiency in friction experiments, two sets of compound lubricant preparation units are designed and installed together with the single-component lubricant preparation units on the second layer 122 of the support 120. This allows one compound lubricant preparation unit to prepare a compound lubricant of one concentration for friction experiments while the other compound lubricant preparation unit is used to prepare a compound lubricant of another concentration, saving intermediate preparation waiting time and improving experimental efficiency.

[0066] When the single-component lubricant preparation module 140 includes two sets of single-component lubricant preparation units, and the compound lubricant preparation module 150 includes two sets of compound lubricant preparation units, the single-component lubricant supply system 151 includes two sets of single-component lubricant supply units. Each single-component lubricant supply unit includes a pump, a single-component lubricant supply pipeline, a single-inlet dual-outlet electrically controlled valve, and a flow monitor.

[0067] For each single-component lubricant supply unit:

[0068] One end of the inlet pipe of the single-component lubricant supply pipeline is connected to the outlet of the corresponding single-component lubricant preparation tank 143, and the other end of the inlet pipe is connected to the inlet of the pump. The outlet of the pump is connected to the inlet of the single-inlet dual-outlet solenoid valve. The single-inlet dual-outlet solenoid valve and the pump are controlled by the main control module. A flow monitor is installed at the inlet of the single-inlet dual-outlet solenoid valve and communicates with the main control module 190. The two outlet pipes of the single-component lubricant supply pipeline are each connected to one outlet of the single-inlet dual-outlet solenoid valve and the compound lubricant preparation tank 152 of a compound lubricant preparation unit.

[0069] Therefore, each single-component lubricant supply unit can supply the single-component lubricant from one single-component lubricant preparation tank 143 to two compound lubricant preparation tanks 152. The single-inlet dual-outlet solenoid valve, controlled by the main control module, can control which compound lubricant preparation tank 152 is supplied with the single-component lubricant, thus achieving single-component lubricant supply. The flow monitor tracks the flow rate, and combined with the single-inlet dual-outlet solenoid valve, precise single-component lubricant supply can be achieved.

[0070] Please see Figures 2-5The base fluid supply module 130 includes a base fluid storage tank 131 (the base fluid storage tank 131 has a base fluid replenishment port 1311 on the top for easy addition of base fluid) and a base fluid supply system 132. The base fluid supply system 132 includes a number of base fluid supply units corresponding to the number of single-component lubricant preparation units. The base fluid storage tank 131 is located at the bottom layer 124 of the support 120 and is used to store base fluid (base fluid is base oil or deionized water).

[0071] Each base liquid supply unit is connected to the base liquid storage tank 131 and the corresponding single-component lubricant preparation tank 143, and communicates with the main control module to accurately supply base liquid to the corresponding single-component lubricant preparation tank 143.

[0072] For example, each base liquid supply unit includes a pump, a connecting pipe 1321, a base liquid supply pipe 1322, an electronic flow controller, and a six-nozzle annular pipe 1323.

[0073] The pump inlet is connected to the base liquid storage tank 131 via a connecting pipe 1321, and the pump outlet is connected to the base liquid supply pipe 1322, which in turn is connected to a six-nozzle annular pipe 1323. An electronic flow controller is installed at the connection between the base liquid supply pipe 1322 and the six-nozzle annular pipe 1323 and communicates with the main control module to precisely control the base liquid supply. A six-nozzle annular pipe 1323 interface is provided around the top side of the single-component lubricant preparation tank 143, connecting to the six-nozzle annular pipe 1323. The connection between the six-nozzle annular pipe 1323 interfaces is used to uniformly supply the base liquid into the single-component lubricant preparation tank 143.

[0074] The six-nozzle annular tube 1323 has one inlet and six outlets, arranged at equal intervals along the annulus. The outlet diameter closer to the inlet is smaller than that farther from the inlet (the diameter decreases gradually with distance from the inlet) to maintain uniform liquid flow as much as possible. Alternatively, a laminar flow induction structure (such as a perforated plate or a honeycomb rectifier, which needs to be designed to the appropriate size and arranged within the tube) can be incorporated into the six-nozzle annular tube 1323 to balance the hydraulic pressure within it, while maintaining uniform liquid flow even with consistent outlet diameters. For laboratory friction experiments, this requirement for uniform liquid flow is not high, but for industrial applications, such a requirement may exist. Therefore, the six-nozzle annular tube 1323 can be fabricated according to the above design to achieve uniform liquid flow and meet the needs of industrial applications.

[0075] Please see Figures 1-5 The compound lubricant treatment module 160 may include a compound lubricant supply unit 161, a supply nozzle 162, a flushing unit 163, a flushing nozzle 164, a suction unit 165, a suction nozzle 166, and a waste liquid tank 167.

[0076] The liquid supply nozzle 162 is connected to the compound lubricant preparation tank 152 through the compound lubricant supply unit 161. The compound lubricant supply unit 161 is controlled by the main control module and is used to supply the compound lubricant to the external friction test device through the liquid supply nozzle 162.

[0077] For example, when the compound lubricant preparation module 150 includes two sets of compound lubricant preparation units, the compound lubricant supply unit 161 includes a supply connection pipe, a dual-inlet single-outlet solenoid valve, two compound lubricant supply pipes, two pumps, and two flow monitors. The inlet of each pump is connected to a compound lubricant preparation tank 152 through a compound lubricant supply pipe, and the outlet of each pump is connected to one inlet of the dual-inlet single-outlet solenoid valve. The outlet of the dual-inlet single-outlet solenoid valve is connected to the supply nozzle 162 through the supply connection pipe. Each pump is controlled by the main control module, and the dual-inlet single-outlet solenoid valve is also controlled by the main control module. Each flow monitor is located at the connection point between its corresponding pump and the dual-inlet single-outlet solenoid valve, and each flow monitor communicates with the main control module. First, the two compound lubricant supply units 161 can draw compound lubricant from their respective compound lubricant preparation tanks 152 and let it flow out from the supply nozzle 162 (of course, each time compound lubricant is supplied, the main control module needs to control which compound lubricant preparation tank 152 is drawn for supply, rather than supplying it simultaneously). Then, the supply nozzle 162 can be used to supply compound lubricant to the external friction test device for friction test.

[0078] The rinsing nozzle 164 is connected to the base liquid storage tank 131 through the rinsing unit 163. The rinsing unit 163 is controlled by the main control module and is used to rinse with base liquid through the rinsing nozzle 164.

[0079] For example, the flushing unit 163 may include a base liquid connection pipe, a control valve, a pump, and a base liquid supply pipe. The pump inlet is connected to the base liquid storage tank 131 through the base liquid supply pipe. The control valve is located at the outlet of the base liquid storage tank 131 that is connected to the base liquid supply pipe. The pump outlet is connected to the flushing nozzle 164 through the base liquid connection pipe, so that the base liquid can be used for flushing through the flushing nozzle 164.

[0080] Waste liquid tank 167 is located at the bottom layer 124 of bracket 120. Suction nozzle 166 is connected to waste liquid tank 167 through suction unit 165. Suction unit 165 is controlled by main control module and is used to suck waste liquid into waste liquid tank 167 through suction nozzle 166.

[0081] For example, the suction unit 165 may include a suction connection pipe, a vacuum pump, and a waste liquid recovery pipe. The suction nozzle 166 is connected to the inlet of the vacuum pump through the suction connection pipe, and the outlet of the vacuum pump is connected to the waste liquid tank 167 (the connection port is located on the top of the waste liquid tank 167) through the waste liquid recovery pipe, so that the waste liquid is recovered into the waste liquid tank 167 through the suction nozzle 166.

[0082] For example, each compound lubricant preparation tank 152 is provided with a drain port 1671 at its bottom. A drain valve is installed at the drain port 1671, and the drain valve is controlled by the main control module. The drain port 1671 is connected to the waste liquid tank 167 via a drain pipe. Since the compound lubricant preparation tank 152 is located on the second layer 122 of the support 120, while the waste liquid tank 167 is located on the bottom layer 124 of the support 120, natural drainage can be achieved through the height difference. Of course, a drain port 1671 can also be provided at the bottom of the single-component lubricant preparation tank 143, with a similar drainage method to that of the compound lubricant preparation tank 152.

[0083] Waste liquid outlet is provided at the bottom of waste liquid tank 167 to facilitate connection to the sewage pipe for treatment.

[0084] Please see Figures 1-5 The external voltage module 180 for the friction experiment may include a regulated power supply 181, a working electrode 182 (with a hook-shaped end for easy connection and mating with various friction pairs), and an auxiliary electrode 183 (with a plate-shaped end for easy immersion in lubricant). The regulated power supply 181 is located on the third layer 123 of the support 120 and is connected to the main control module; the working electrode 182 is connected to the positive output port of the regulated power supply 181 via a power supply wire; the auxiliary electrode 183 is connected to the negative output port of the regulated power supply 181 via a power supply wire. The voltage output range of the external voltage module 180 for the friction experiment is -100 V to +100 V, with a voltage regulation accuracy of ±0.001 V, and is used to generate a programmable electric field on the surface of the friction pair.

[0085] The main control module 190 may include a workstation 191 and a display screen 192. The workstation 191 is mounted on the side frame 125 of the bracket 120, and the display screen 192 is embedded in the housing 110 and connected to the workstation 191. The workstation 191 can communicate with automation platforms such as PLCs and DCSs, and has remote control, data recording, parameter self-learning, and feedback optimization functions. The modular solution preparation and electro-friction control integrated equipment 100 is suitable for the friction interface of conductive or non-conductive friction pair materials, achieving continuous adjustable and adaptive control of friction performance under dynamic loads, variable speed motion, and microscale working conditions.

[0086] The above is a detailed introduction to the structural design of the modular solution preparation and electro-friction control integrated equipment 100. Here, the operating principle of the modular solution preparation and electro-friction control integrated equipment 100 will be introduced in conjunction with the operation process of the equipment.

[0087] The modular solution preparation and electro-friction regulation integrated equipment 100 provided in this embodiment mainly includes a base liquid supply module 130, a single-component lubricant preparation module 140, a compound lubricant preparation module 150, a compound lubricant disposal module 160, a real-time monitoring module 170, a friction experiment external voltage module 180, and a main control module 190. The main control module 190 (PC host) provides unified control to achieve integrated operation of high-precision lubricant preparation, real-time monitoring, electro-friction regulation, and intelligent feedback optimization.

[0088] For example, taking anionic surfactants (such as SDS) as material A (i.e., stored in lubricant storage tank A) and cationic surfactants (such as CTAB) as material B (i.e., stored in lubricant storage tank B), the specific working process of the equipment is as follows:

[0089] First, input the key parameters of the required compound lubricant into the display screen 192 interface of the PC host (i.e., main control module 190), including the target ratio of material A to material B (e.g., SDS:CTAB=7:1), total concentration (e.g., 0.5 mM), target volume (e.g., 1000 mL), stirring speed, and the voltage required for the experiment. After receiving the setting command, activate the single-component lubricant preparation module 140, open the automatic control valves of lubricant raw material storage tank A and lubricant raw material storage tank B, and release particles (or raw liquid) sequentially and quantitatively into single-component lubricant preparation tank C and single-component lubricant preparation tank D under the precise measurement of the quality monitoring sensor. Subsequently, through the base liquid supply module 130, inject the set volume of base liquid (deionized water or base oil) evenly into single-component lubricant preparation tank C and single-component lubricant preparation tank D through the base liquid supply unit (including pump, connecting pipe 1321, base liquid supply pipe 1322, electronic flow controller, and six-nozzle annular pipe 1323). After the base liquid is injected, the stirring motor 1441 is started, driving the stirring shaft 1444 and the blades 1445 to rotate, ensuring that material A is fully dissolved in the base liquid in the single-component lubricant preparation tank C (and material B is fully dissolved in the base liquid in the single-component lubricant preparation tank D), forming a single-component lubricant C (in the single-component lubricant preparation tank C) and a single-component lubricant D (in the single-component lubricant preparation tank D) with uniform concentration.

[0090] After the single-component liquid is prepared, the PC host (i.e., the main control module 190) controls the single-component lubricant supply system 151 (two sets of single-component lubricant supply units, each set including a pump, a single-component lubricant supply pipeline, a single-inlet double-outlet electrically controlled valve, and a flow monitor) to deliver single-component lubricant C and single-component lubricant D to the compound lubricant preparation tank 152E according to a preset ratio. (If there are two compound lubricant preparation tanks 152, after the supply of single-component lubricant C and single-component lubricant D to the compound lubricant preparation tank E is completed, the PC host controls the single-component lubricant supply system 151 to deliver single-component lubricant C and single-component lubricant D to the compound lubricant preparation tank F according to another set ratio.) The PC host controls the corresponding high-speed stirring motor 1441 to start, and the blades 1445 rotate at high speed to achieve full mixing of the mixed solution in the compound lubricant preparation tank E (or compound lubricant preparation tank F). Meanwhile, the solution information detection device 153 (such as a concentration and temperature monitor) installed on the tank wall monitors the concentration and temperature changes of the compounded lubricating fluid in real time and feeds the data back to the PC host in real time. If there is a deviation between the detected value and the target value, the main control module 190 automatically adjusts the flow rate of each component to achieve dynamic concentration correction and ensure the accuracy and stability of the compounded lubricating fluid.

[0091] After the compounding is completed, the compounded lubricating fluid in the compounded lubricating fluid preparation tank E (or compounded lubricating fluid preparation tank F) is delivered to the friction device (i.e., the friction test apparatus) through the supply nozzle 162 and the supply unit 161, ready for electronically controlled friction testing. At this time, the operator installs the working electrode 182 and the auxiliary electrode 183 to the predetermined positions. The working electrode 182 is in direct contact with the friction interface, while the auxiliary electrode 183 needs to be immersed (or partially immersed) in the compounded lubricating fluid of the friction test apparatus. The PC host controls the regulated power supply 181 of the external voltage module 180 of the friction test to output a set voltage (e.g., +10 V), which is connected to the two electrodes through power lines to establish a stable electric field at the friction interface. The external electric field induces the orderly adsorption of charged molecules in the lubricating fluid, thereby regulating the molecular structure and lubrication performance of the friction interface.

[0092] During the experiment, the real-time detection module continuously monitors key data such as energy consumption of the friction experimental device and transmits the results to the PC host. The PC host dynamically adjusts the electric field strength based on the feedback information to achieve closed-loop control, ensuring the accuracy and stability of friction regulation.

[0093] After the experiment is completed, the suction unit 165 in the lubricant disposal module is activated. The residual lubricant is pumped into the waste liquid tank 167 through the suction nozzle 166 under the action of the vacuum pump. Then, the base liquid in the base liquid storage tank 131 is extracted through the flushing nozzle 164 and the flushing unit 163 to clean the friction test device (experimental part, i.e. friction pair part) and related pipelines to ensure that the friction test device is in a clean state before the next experiment.

[0094] Throughout the preparation of the compound lubricant and the friction experiment, various sensors (temperature, flow rate, concentration, etc.) monitor the lubricant concentration, temperature, and energy consumption data of the operating device (i.e., the friction experiment apparatus) in real time, feeding this information back to the PC host. The PC host, acting as the control center, comprehensively analyzes the various data and controls the external voltage module 180 to dynamically apply an electric field between the working electrode 182 and the auxiliary electrode 183, thereby regulating the adsorption behavior of lubricant molecules at the friction interface and achieving precise control of friction performance. The dual-electrode electro-controlled friction system, consisting of the working electrode 182, the auxiliary electrode 183, and the compound lubricant, is arranged around the moving parts of the operating device to provide a stable electric field for regulating the adsorption behavior of lubricant molecules at the friction interface. By providing real-time energy consumption feedback from the operating device, information such as friction and wear at the moving parts is monitored in real time. The PC host then determines and controls the applied voltage value based on the feedback information, achieving precise control and dynamic optimization of friction performance. The dual-electrode system here includes a working electrode 182 (WE) and an auxiliary electrode 183 (CE). The working electrode 182 is in direct contact with the friction pair of the friction experimental device (i.e., the moving part of the device), and the molecular behavior of the lubrication interface is directly controlled by the electric field. The auxiliary electrode 183 is wholly or partially immersed in the compound lubricating fluid at this location. The various modules of the entire device constitute an intelligent closed-loop process of "formulation → action → monitoring → feedback → regulation → optimization", which has the technical advantages of high integration, high responsiveness and strong scalability. It is suitable for the dynamic adjustment and optimization of the friction performance of various conductive and non-conductive friction pair materials under complex working conditions.

[0095] The following examples further illustrate this embodiment:

[0096] Example 1:

[0097] Electro-field-controlled friction performance experiments were conducted using aqueous solutions of anionic surfactants (SDS) and cationic surfactants (CTAB) at different concentrations as water-based lubricants. The solution concentrations were 0.5 mM, 1.0 mM, 2.0 mM, and 4.0 mM, with anionic-cationic surfactant ratios of 7:1, 3:1, and 1:0, respectively. The introduction of CTAB expanded the applicable concentration range of SDS lubricant in electro-field-controlled friction systems, and the composite system generally outperformed the single-component system in terms of friction performance control. Under low concentration conditions (c ≤ 1.0 mM, composite ratio 7:1), significant electro-field-controlled friction performance was observed, achieving wide-range adjustment of the friction coefficient and rapid response; while under high concentration conditions (c ≥ 4.0 mM), the system exhibited a higher overall electric field response rate. Experimental results at total concentrations of 0.5 mM and 4.0 mM are shown below. Figure 11 and Figure 12 As shown.

[0098] Example 2:

[0099] Electric field-controlled friction performance experiments were conducted using ionic liquids and anti-wear agents ZDDP and MoDTC complex solutions of different concentrations as oil-based lubricants. The ionic liquid mass fraction was 1.0 wt%; ZDDP mass fraction was 0.5 wt%; and MoDTC mass fraction was 0.5 wt%. It was found that adding only ionic liquids to the base oil resulted in poor lubrication. However, adding ZDDP or MoDTC complex solutions with ionic liquids improved lubrication. Simultaneously, the electric field control effect was significantly improved in both cases. Figure 13 As shown.

[0100] In summary, this application provides a modular solution preparation and electronically controlled friction regulation integrated device 100. A base liquid is supplied via a base liquid supply module 130. At least two single-component lubricants are prepared and stored using a single-component lubricant preparation module 140. A compound lubricant preparation module 150 prepares and stores a compound lubricant based on the at least two single-component lubricants provided by the single-component lubricant preparation module 140. A compound lubricant disposal module 160 supplies the compound lubricant prepared by the compound lubricant preparation module 150 to an external friction testing device. The device also includes a residual liquid extraction and cleaning function after the friction test. The real-time monitoring module 170 collects experimental data (including energy consumption information of the external friction testing device) during the friction experiment. An external voltage module 180 is designed to generate a stable electric field to regulate the interfacial behavior of the compound lubricant molecules during the friction experiment. The main control module 190 receives the experimental data collected by the real-time monitoring module 170 and adjusts the electric field strength of the external voltage module 180 based on the data. It also controls the proportions and flow rates throughout the entire compound lubricant preparation process (including both single-component and compound lubricant preparation). This invention, through highly integrated and modular design, integrates multiple functional modules such as lubricant preparation, voltage control, friction testing, data acquisition, and feedback control. This overcomes the shortcomings of traditional equipment in electrically controlled friction experiments, which suffers from dispersed structures and cumbersome operation, achieving "integrated operation and closed-loop control," significantly improving system stability and experimental / engineering efficiency.

[0101] In the various embodiments of this application, the functional modules can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0102] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations.

[0103] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A modular solution preparation and electro-controlled friction regulation integrated device, characterized in that, include: case; The bracket is housed within the casing; The base liquid supply module, mounted on the support, is used to supply base liquid; A single-component lubricant preparation module is mounted on a support and connected to a base fluid supply module. It is used to prepare and store at least two single-component lubricants. A compound lubricant preparation module is mounted on a support and connected to a single-component lubricant preparation module. It is used to prepare and store compound lubricants based on at least two single-component lubricants provided by the single-component lubricant preparation module. The compound lubricant treatment module is connected to the compound lubricant preparation module and to the base liquid supply module, for supplying the compound lubricant prepared by the compound lubricant preparation module to an external friction test device, and for extracting residual liquid and cleaning after the friction test. The real-time monitoring module is used to collect experimental data from the external friction testing device during the friction experiment. The experimental data includes the energy consumption information of the external friction testing device. The external voltage module for friction experiments is used to generate a stable electric field to regulate the interfacial behavior of compound lubricant molecules during friction experiments in an external friction experiment device. The main control module is used to receive experimental data collected by the real-time monitoring module and adjust the electric field strength of the external voltage module for the friction experiment according to the experimental data. It is also used to control the ratio and flow rate of the compound lubricant throughout the entire process of compound lubricant preparation. The entire process of compound lubricant preparation includes the preparation process of single-component lubricant and the preparation process of compound lubricant.

2. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 1, characterized in that, The support structure is multi-layered, and the single-component lubricant preparation module includes at least two sets of single-component lubricant preparation units. Each single-component lubricant preparation unit includes a lubricant raw material storage tank, a support with a quality monitoring sensor, a single-component lubricant preparation tank, a solution information detection device, and a stirring mechanism. Each of the aforementioned supports with quality monitoring sensors is disposed on the top layer of the bracket and communicates with the main control module; Each of the lubricant raw material storage tanks is mounted on a corresponding support with a quality monitoring sensor, and each of the lubricant raw material storage tanks is equipped with an automatic control valve and communicates with the main control module; Each of the single-component lubricant preparation tanks is located on the second layer of the bracket, below the corresponding lubricant raw material storage tank, and is connected to the corresponding lubricant raw material storage tank through a pipe. In addition, each of the single-component lubricant preparation tanks is also connected to the base liquid supply module, and the base liquid supply module communicates with the main control module. Each of the solution information detection devices is installed on the wall of the corresponding single-component lubricant preparation tank and communicates with the main control module to detect the concentration and temperature information of the single-component lubricant during the preparation process in the single-component lubricant preparation tank. Each of the stirring mechanisms is installed in the corresponding single-component lubricant preparation tank and is controlled by the main control module to stir and promote the mutual solubility of the solutions in the single-component lubricant preparation tank.

3. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 2, characterized in that, The compound lubricant preparation module includes at least one compound lubricant preparation unit. Each compound lubricant preparation unit includes a single-component lubricant supply system, a compound lubricant preparation tank, a solution information detection device, and a high-speed stirring device. The compound lubricant preparation tank is located on the second layer of the support and is connected to each of the single-component lubricant preparation tanks through the single-component lubricant supply system, wherein the single-component lubricant supply system communicates with the main control module; The solution information detection device is installed on the wall of the compound lubricating liquid preparation tank and communicates with the main control module. It is used to detect the concentration and temperature information of the compound lubricating liquid during the preparation process in the compound lubricating liquid preparation tank. The high-speed stirring device is installed inside the compound lubricating fluid preparation tank and is controlled by the main control module. It is used to stir and promote the mutual solubility of the solutions in the compound lubricating fluid preparation tank.

4. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 3, characterized in that, The single-component lubricant preparation module includes two sets of single-component lubricant preparation units, the compound lubricant preparation module includes two sets of compound lubricant preparation units, and the single-component lubricant supply system includes two sets of single-component lubricant supply units. Each single-component lubricant supply unit includes a pump, a single-component lubricant supply pipeline, a single-inlet dual-outlet electrically controlled valve, and a flow monitor. For each single-component lubricant supply unit: One end of the inlet pipe of the single-component lubricant supply pipeline is connected to the outlet of the corresponding single-component lubricant preparation tank, and the other end of the inlet pipe of the single-component lubricant supply pipeline is connected to the inlet of the pump. The outlet of the pump is connected to the inlet of the single-inlet dual-outlet solenoid valve. The single-inlet dual-outlet solenoid valve and the pump are controlled by the main control module. The flow monitoring instrument is installed at the inlet of the single-inlet double-outlet electrically controlled valve and communicates with the main control module; The two outlet pipes of the single-component lubricant supply pipeline are each connected to one outlet of the single-inlet double-outlet electrically controlled valve and the compound lubricant preparation tank of the compound lubricant preparation unit.

5. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 3, characterized in that, The base fluid supply module includes a base fluid storage tank and a base fluid supply system. The base fluid supply system includes a number of base fluid supply units corresponding to the number of single-component lubricant preparation units. The base liquid storage tank is located at the bottom of the support and is used to store the base liquid, wherein the base liquid is base oil or deionized water; Each of the base liquid supply units is connected to the base liquid storage tank and the corresponding single-component lubricant preparation tank, and communicates with the main control module to accurately supply base liquid to the corresponding single-component lubricant preparation tank.

6. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 5, characterized in that, Each of the aforementioned base liquid supply units includes a pump, connecting pipes, base liquid supply pipes, an electronic flow controller, and a six-nozzle annular pipe. The pump inlet is connected to the base liquid storage tank via a connecting pipe, the pump outlet is connected to the base liquid supply pipe, and the base liquid supply pipe is connected to the six-nozzle annular pipe. The electronic flow controller is installed at the connection between the base liquid supply pipeline and the six-nozzle annular pipe, and communicates with the main control module to precisely control the base liquid supply. The top side of the single-component lubricant preparation tank is provided with a six-nozzle annular pipe interface that connects to the six-nozzle annular pipe.

7. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 5, characterized in that, The compound lubricating fluid treatment module includes a compound lubricating fluid supply unit, a supply nozzle, a rinsing unit, a rinsing nozzle, a suction unit, a suction nozzle, and a waste fluid tank. The liquid supply nozzle is connected to the compound lubricant preparation tank through the compound lubricant supply unit. The compound lubricant supply unit is controlled by the main control module and is used to supply the compound lubricant to the external friction test device through the liquid supply nozzle. The rinsing nozzle is connected to the base liquid storage tank through the rinsing unit, and the rinsing unit is controlled by the main control module and is used to rinse with base liquid through the rinsing nozzle. The waste liquid tank is located at the bottom of the support frame. The suction nozzle is connected to the waste liquid tank through the suction unit. The suction unit is controlled by the main control module and is used to suck waste liquid into the waste liquid tank through the suction nozzle.

8. The modular solution preparation and electro-friction control integrated equipment according to claim 7, characterized in that, The compound lubricant preparation module includes two sets of compound lubricant preparation units, and the compound lubricant supply unit includes a supply connection pipeline, a dual-inlet single-outlet electrically controlled valve, two compound lubricant supply pipelines, two pumps, and two flow monitoring instruments. Each pump's inlet is connected to a compound lubricant preparation tank via a compound lubricant supply pipeline, and each pump's outlet is connected to one inlet of a dual-inlet single-outlet solenoid valve. The outlet of the dual-inlet single-outlet solenoid valve is connected to the supply nozzle via the supply connection pipeline. Each pump is controlled by the main control module, and the dual-inlet single-outlet solenoid valve is also controlled by the main control module. Each flow monitor is installed at the connection point between its corresponding pump and the dual-inlet single-outlet electrically controlled valve, and each flow monitor communicates with the main control module.

9. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 1, characterized in that, The external voltage module for the friction experiment includes: A regulated power supply is located on the third layer of the bracket and is connected to the main control module; The working electrode is connected to the positive output port of the regulated power supply via a power supply wire; The auxiliary electrode is connected to the negative output port of the regulated power supply via a power supply wire.

10. The modular solution preparation and electro-controlled friction regulation integrated equipment according to claim 1, characterized in that, The bracket also has a side frame on one side, which is located on the outside of the housing. The main control module includes a workstation and a display screen. The workstation is mounted on the side frame; the display screen is embedded in the housing and connected to the workstation.

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