Copying machine shaft micro-flow lubrication anti-pollution control method and system and computer equipment

Abstract

The invention relates to a copying machine shaft micro-flow lubrication anti-pollution control method, a copying machine shaft micro-flow lubrication anti-pollution control system and computer equipment, belongs to the field of copying machine core component lubrication control, and aims to solve the problems of poor flow matching, fixed filtering precision, rough state correction and shutdown residual pollution of an existing method. According to the method, a control end determines the initial lubricating liquid flow according to the shaft rotating speed, the load and the accumulative running time of the copying machine and synchronously adjusts the lubricating liquid filtering precision according to the load; the output quantity of the micro-flow supply structure is corrected in a graded mode by combining lubricating film thickness data of a lubricating area; and when the temperature is abnormal, the lubricating liquid conveying frequency is increased, and after the shaft body stops, the load is matched with the dry gas pressure to clean residues before stopping. The precise supply and anti-pollution cooperative control of the lubricating liquid is realized, the consumption of the lubricating liquid is reduced, the service life of the shaft body is prolonged, pollution faults are avoided, and the running stability of the copying machine is improved.

Description

Technical Field

[0001] This invention relates to the field of lubrication control technology for core components of copiers, and particularly to a method, system, and computer equipment for micro-flow lubrication and anti-contamination control of copier shafts. Background Technology

[0002] During long-term operation, the lubrication condition of the internal rotating shafts (such as the fuser roller and photosensitive drum) of a copier directly affects the equipment's operational stability and service life. Current copier shaft lubrication systems mostly employ a fixed flow rate supply method, delivering lubricant only according to a preset single flow rate. When the shaft is operating at high speed and high load, the fixed flow rate cannot meet lubrication needs, easily leading to accelerated shaft wear. When the shaft is operating at low speed and low load, excessive lubricant not only causes waste but also overflows into surrounding components (such as the paper feed path and photosensitive element), causing contamination and malfunctions.

[0003] Meanwhile, most existing lubrication systems use fixed-precision filter components, which cannot adjust the filtration capacity according to changes in shaft load. When the load increases, the friction between the shaft and mating parts intensifies, requiring higher cleanliness of the lubricant. However, fixed-precision filtration is difficult to intercept small impurities, which will accelerate shaft wear after entering the lubrication area. When the load is low, excessively high-precision filtration will increase the resistance to lubricant delivery and affect supply efficiency.

[0004] Furthermore, existing technologies lack precise control over lubrication monitoring and adjustment: some solutions only trigger flow adjustments at time intervals, failing to match the actual lubrication needs of the shaft in real time; while others incorporate lubrication status detection, their adjustment logic is simplistic, allowing only single, fixed-amplitude flow corrections, easily leading to "under-adjustment" or "over-adjustment." Moreover, after the shaft stops, residual lubricant in the lubrication area easily attracts dust, fibers, and other impurities, creating an "impurity abrasion" effect upon restarting, shortening the shaft's lifespan. Summary of the Invention

[0005] The main objective of this invention is to provide a micro-flow lubrication and anti-contamination control method, system, and computer equipment for copier shafts, aiming to solve the problem in existing copier shaft lubrication control where the lubricant flow rate cannot be dynamically adjusted according to shaft operation data, resulting in insufficient or excessive lubrication.

[0006] To achieve the above objectives, the present invention provides a micro-flow lubrication and anti-contamination control method for copier shafts, comprising the following steps: Acquire copier shaft operation data, including rotational speed and load; Based on the operating data, the control unit controls the filtered lubricating fluid to be delivered to the copier shaft lubrication area through the micro-flow supply structure, and adjusts the lubricating fluid delivery flow rate. The system acquires lubrication status data of the copier shaft lubrication area, and the control terminal modifies the lubricant delivery flow rate based on the lubrication status data. After the copier shaft stops running, the control unit controls the cleaning mechanism to blow gas into the lubrication area to remove residual lubricant and impurities.

[0007] Furthermore, the operating data also includes the cumulative running time of the copier shaft. When adjusting the lubricant delivery flow rate, the control terminal simultaneously determines the initial delivery flow rate based on the cumulative running time. For each preset time interval added to the cumulative running time, the initial delivery flow rate is increased by a preset percentage.

[0008] Furthermore, when filtering the lubricating fluid, the control unit adjusts the filtration accuracy of the lubricating fluid filtration assembly based on the acquired load data. When the load data is higher than the preset load value, the filtration accuracy of the lubricating fluid filtration assembly is increased.

[0009] Furthermore, the lubrication status data is the lubrication film thickness data of the copier shaft lubrication area. The control terminal has a first thickness threshold and a second thickness threshold preset. The second thickness threshold is lower than the first thickness threshold. When the lubrication film thickness data is lower than the first thickness threshold, the control terminal slightly adjusts the lubricant delivery flow rate; when the lubrication film thickness data is lower than the second thickness threshold, the control terminal significantly adjusts the lubricant delivery flow rate.

[0010] Furthermore, when adjusting the lubricant delivery flow rate at the control end, a stepped adjustment method is adopted. For every preset percentage change in speed or load, the lubricant delivery flow rate is adjusted by a corresponding preset flow rate step value.

[0011] Furthermore, the gas blown by the cleaning structure to the lubrication area is dry gas. The control terminal determines the pressure of the dry gas based on the load data before the copier shaft stops. The higher the load data before stopping, the higher the corresponding pressure of the dry gas is set.

[0012] Furthermore, the lubricant supplied to the copier shaft lubrication area is a temperature-adaptive lubricant. While adjusting the lubricant supply flow rate, the control terminal acquires real-time temperature data of the copier shaft. When the real-time temperature data exceeds the preset temperature range, the control terminal controls the micro-flow supply structure to increase the lubricant supply frequency.

[0013] Furthermore, after receiving the lubrication status data, the control terminal first compares the current lubrication status data with the lubrication status data under the same historical period and operation. If the current lubrication status data is lower than the historical average, the lubricant output of the micro-flow supply structure is then adjusted.

[0014] This invention also proposes a micro-flow lubrication and anti-contamination control system for a copier shaft, comprising: The acquisition unit is used to acquire copier shaft operating data, including rotational speed and load; The flow unit is used by the control terminal to control the filtered lubricating fluid to be delivered to the copier shaft lubrication area through the micro-flow supply structure according to the operating data, and to adjust the lubricating fluid delivery flow rate. The status unit is used to acquire lubrication status data of the copier shaft lubrication area, and the control terminal modifies the lubricant delivery flow rate according to the lubrication status data. The cleaning unit is used to blow gas into the lubrication area by the control terminal after the copier shaft stops running, so as to remove residual lubricant and impurities.

[0015] The present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the above-described copier shaft micro-flow lubrication and anti-contamination control method.

[0016] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the above-described copier shaft micro-flow lubrication and anti-contamination control method.

[0017] The copier shaft micro-flow lubrication and anti-contamination control method, system, and computer equipment provided by this invention have the following beneficial effects: This invention solves the problem of insufficient or excessive lubrication caused by a fixed flow rate by dynamically adjusting the initial flow rate of the lubricant in combination with shaft speed, load and cumulative running time. Based on load adjustment of filtration accuracy, the filtration effect is improved under high load to reduce impurity wear, and the filtration resistance is reduced under low load to ensure supply efficiency and extend the service life of the shaft. A dual thickness threshold is used to achieve fine correction of lubrication status, combined with stepped flow adjustment to avoid sudden changes in flow and improve lubrication stability; When cleaning during shutdown, adjust the dry gas pressure according to the load to ensure that residual lubricant and impurities are thoroughly removed, while avoiding airflow impact that could damage precision components; By adjusting the lubricant delivery frequency based on temperature data and incorporating historical data for comparison and correction, the accuracy of lubrication control is further improved, enabling long-term stable operation of the copier under different working conditions. Attached Figure Description

[0018] Figure 1 This is a schematic flowchart of a micro-flow lubrication and anti-contamination control method for a copier shaft according to an embodiment of the present invention; Figure 2 This is a structural block diagram of a micro-flow lubrication and anti-contamination control system for a copier shaft according to an embodiment of the present invention; Figure 3 This is a schematic block diagram of the structure of a computer device according to an embodiment of the present invention.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Reference Figure 1 This is a flowchart illustrating a micro-flow lubrication and anti-contamination control method for a copier shaft proposed in this invention. The method includes the following steps: S1, acquire copier shaft operation data, the operation data including rotational speed and load; S2, the control terminal controls the filtered lubricating fluid to be delivered to the copier shaft lubrication area through the micro-flow supply structure according to the operating data, and adjusts the lubricating fluid delivery flow rate; S3, acquire lubrication status data of the copier shaft lubrication area, and the control terminal modifies the lubricant delivery flow rate according to the lubrication status data; S4, after the copier shaft stops running, the control terminal controls the cleaning structure to blow gas into the lubrication area to remove residual lubricant and impurities.

[0022] In step S1, during the acquisition of copier shaft operating data, the appropriate acquisition hardware is selected based on the actual installation space, operating speed range, and load characteristics of the copier shaft (the load on the fuser roller shaft varies with paper thickness / quantity, while the load on the photosensitive drum shaft is relatively stable). The speed data is acquired using an incremental photoelectric encoder. The encoder is fixed to the non-drive end face of the copier shaft via a flange structure. The encoder's code disk rotates synchronously with the shaft, outputting a fixed number of pulse signals per revolution. These pulse signals are de-jittered by the signal conditioning module built into the control unit and transmitted to the counter module. The counter module calculates the real-time shaft speed based on the number of pulses received per unit time (the calculation formula is: speed (rpm) = (number of pulses per unit time / number of encoder lines) × 60, with the unit time set to 1). (To ensure real-time performance while avoiding data redundancy). Load data is acquired through a miniature strain gauge torque sensor, which is connected in series between the copier shaft and the drive motor flange. The strain gauges attached to the sensor surface deform when the shaft is subjected to torque, causing a change in the resistance value of the strain gauges, which in turn changes the analog voltage signal output by the sensor. This analog signal is processed by the signal amplification module and low-pass filter module at the control end and then transmitted to the A / D conversion module. The A / D conversion module converts the analog signal into a digital signal, and the control end converts the digital signal into real-time load data of the shaft according to the pre-stored torque-load calibration curve. At the same time, to ensure data accuracy, the control end counts the speed pulse signal multiple times and takes the average value in each acquisition cycle, and performs fluctuation detection on the load digital signal to ensure that the acquired speed and load data can truly reflect the actual operating state of the copier shaft.

[0023] In step S2, after receiving the copier shaft's operating data, the control unit performs real-time data analysis using its built-in data analysis module. This module pre-stores an operating data-basic flow correlation model based on different operating conditions (speed range, load range) of the copier shaft. This model, calibrated through extensive prior operating condition testing, maps real-time speed and load data to an initial lubricant delivery flow rate benchmark value. Simultaneously, the control unit sends a control signal to the lubricant filter assembly based on the current load data. By adjusting the interception aperture of the filter element inside the filter assembly or controlling the residence time of the lubricant in the filter chamber, the filtration accuracy is matched to the load requirements. When the load data increases, the control signal triggers the filter assembly to switch to a higher-precision filtration mode to ensure that fine impurities in the lubricant are effectively intercepted. When the load data decreases, the accuracy is maintained or adjusted to a suitable level to reduce lubricant delivery resistance and ensure the cleanliness and smooth delivery of the filtered lubricant. Subsequently, the control unit converts the calculated initial flow rate benchmark value into a driving force for the micro-flow supply structure. The drive signal adjusts the internal actuators of the micro-flow supply structure to achieve precise control of lubricant delivery, ensuring that the filtered lubricant is delivered to the copier shaft lubrication area according to the initial flow rate reference value. During delivery, the control unit continuously monitors the dynamic changes in operating data. When the speed or load data deviates from the initial acquisition value, the data analysis module updates the flow rate reference value in real time and adjusts the drive signal parameters accordingly, thereby changing the output flow rate of the micro-flow supply structure. If the speed increases, the drive signal correspondingly increases the supply frequency or opening to increase the lubricant delivery flow rate to meet the lubrication requirements at higher speeds. If the load increases, while adjusting the flow rate, the accuracy of the filtration components is further confirmed to ensure that the lubricant delivered to the lubrication area matches the current operating state in terms of both flow rate and cleanliness.

[0024] In step S3, during the process of acquiring lubrication status data of the copier shaft lubrication area, it is necessary to select an appropriate detection method based on the spatial layout of the lubrication area and the characteristics of the lubricant (such as transparent or semi-transparent, viscosity range). Non-contact detection is preferred to avoid interfering with the lubrication process. Commonly used methods include laser thickness sensors or capacitive thickness sensors. The sensors are fixed to the side of the lubrication area by a bracket and maintain a preset safe distance from the shaft. The laser thickness sensor emits a laser of a specific wavelength into the lubrication area. After the laser is reflected by the upper surface of the lubricant film and the surface of the shaft, two reflected beams are formed. The sensor receives the two reflected beams and converts them into electrical signals. By calculating the phase difference or optical path difference between the two signals, the real-time thickness data of the lubricant film is obtained. The capacitive thickness sensor utilizes the difference in dielectric constant between the lubricant and air. The sensor probe and the surface of the shaft form a capacitor structure. When the thickness of the lubricant film changes, the capacitance value changes accordingly. The sensor converts the capacitance change into an analog voltage signal (0-3V). This signal is processed by the signal conditioning circuit of the control terminal and converted into identifiable lubricant film thickness data. Meanwhile, to avoid single-test errors, the control unit calculates the average of multiple continuously collected data sets, eliminating abnormal data that exceed the normal fluctuation range to ensure that the acquired lubrication status data (lubricating film thickness) accurately reflects the actual situation. After receiving the preprocessed lubrication status data, the control unit calls the built-in operating condition-lubrication standard correlation model. This model, built through prior operating condition testing, stores reasonable ranges for lubricating film thickness under different speed and load combinations (e.g., 3-5μm for low speed and low load, and 5-8μm for high speed and high load, avoiding judgment bias caused by fixed standards). The control unit first compares the current lubrication status data with the reasonable range under the corresponding operating condition (real-time speed and load): if the data is within the reasonable range, the current lubricating fluid delivery flow rate is maintained; if the data is below the lower limit of the range (indicating insufficient lubrication, which may lead to direct friction between the shaft and bearing), the control unit calculates the deviation between the actual data and the lower limit of the range, and determines the flow rate adjustment range based on the deviation (the smaller the deviation, the smaller the adjustment range, e.g., a deviation of 0.5μm). The flow rate is increased by 5%-8% when the flow rate is constant, and by 10%-15% when the deviation is 1μm or more (to avoid excessive flow due to sudden increases). The adjustment command is then converted into a drive signal for the micro-flow supply structure, thereby increasing the lubricant delivery flow rate. If the data exceeds the upper limit of the range, the control unit calculates the deviation between the data and the upper limit and reduces the flow rate proportionally to the deviation. In addition, the control unit continuously monitors the adjusted lubrication status data. If the data does not return to the reasonable range within 2-3 consecutive acquisition cycles, the flow rate adjustment will be corrected again.

[0025] In step S4, the signal for the copier shaft to stop running is triggered by the control terminal through monitoring the shaft speed data. When the speed sensor detects a speed value of 0 for several consecutive acquisition cycles, and the operating current of the drive motor drops back to the standby current value, the control terminal determines that the shaft has completely stopped running and then starts the cleaning control process. The control terminal first retrieves the load data of the shaft before it stops, and combines it with the pre-stored "load before shutdown - cleaning parameters" mapping relationship to determine the reference values ​​of gas pressure and blowing time for the cleaning structure. At the same time, the control terminal sends a start signal to the air source control module of the cleaning structure. This module has a built-in pressure regulating valve and flow regulating valve. After receiving the signal, it first stabilizes the pressure of the compressed gas output from the air source, and then adjusts the opening of the pressure regulating valve according to the pressure reference value determined by the control terminal to stabilize the output gas pressure within the appropriate range. The core actuator of the cleaning structure is a miniature directional air nozzle, which is fixed above or to the side of the lubrication area via an adjustable bracket. The nozzle outlet direction is pre-calibrated to precisely align with the lubrication gap between the shaft and bearing, and the distance between the nozzle and the lubrication area is controlled at 3-8mm to ensure sufficient impact force when the airflow reaches the lubrication area. When the pressurized gas is blown into the lubrication area through the nozzle, the airflow covers the surface and gaps of the lubrication area in a laminar flow state. The impact force of the airflow overcomes the adhesion between residual lubricant and the shaft surface, causing the liquid residual lubricant to be carried away by the airflow into tiny droplets and detach from the lubrication area. Simultaneously, the airflow creates a negative pressure zone on the surface of the lubrication area, drawing in any dust, fibers, or other impurities that may be attached to the surrounding area, which are then guided to the pre-designated waste collection channel. During the blowing process, the control unit monitors the feedback data from the gas pressure sensor of the cleaning structure in real time. If the pressure value deviates from the set reference value (the deviation exceeds 10%), it will be dynamically corrected by adjusting the flow regulating valve of the gas source control module. When the blowing time reaches the set reference value, the control unit first reduces the gas pressure to 50% of the reference value, maintains low-pressure blowing for 2-3 seconds, and then shuts off the gas source control module to complete the cleaning process.

[0026] In one embodiment, the operating data further includes the cumulative running time of the copier shaft. When adjusting the lubricant delivery flow rate, the control terminal simultaneously determines the initial delivery flow rate based on the cumulative running time. For each preset time interval added to the cumulative running time, the initial delivery flow rate is increased by a preset percentage.

[0027] Specifically, the operating data now includes the cumulative runtime of the copier shaft. This runtime is continuously recorded by the built-in timing module on the control unit, accumulating as the shaft runs. The recording pauses when the machine stops and resumes upon restarting. When adjusting the lubricant delivery flow rate, the control unit, after determining the base flow rate based on rotational speed and load, simultaneously introduces the cumulative runtime parameter. Because the shaft experiences slight wear over long-term operation, the clearance gradually increases, requiring more lubricant to maintain an effective lubrication film under the same operating conditions. The control unit pre-stores preset duration segments and corresponding preset percentages (3%-8%). Each time the cumulative runtime reaches a preset period, this percentage increment is added to the base flow rate to form the final initial delivery flow rate. This ensures the initial flow rate matches the lubrication needs throughout the shaft's entire lifespan, preventing insufficient lubrication due to wear.

[0028] In one embodiment, when filtering the lubricating fluid, the control terminal adjusts the filtration accuracy of the lubricating fluid filtration assembly based on the acquired load data. When the load data is higher than a preset load value, the filtration accuracy of the lubricating fluid filtration assembly is increased.

[0029] Specifically, the lubricant filter assembly adopts a multi-stage adjustable structure, with built-in filter media of different pore sizes (5μm, 10μm, 15μm), and precision switching is achieved through a switching mechanism driven by the control terminal. After receiving load data in real time, the control terminal compares it with the pre-stored preset load value (usually 70%-80% of the shaft's rated load, calibrated according to material strength): when the load data is lower than the preset value, the filter assembly maintains a lower precision (10μm or 15μm) to reduce lubricant resistance and ensure smooth delivery; when the load data is higher than the preset value, the control terminal sends a signal to the switching mechanism to drive the filter assembly to switch to a higher precision (5μm), using a finer filter media to intercept tiny impurities (such as metal shavings and colloidal particles). Because the contact pressure between the shaft and mating parts is high under high load, tiny impurities are easily embedded in the friction surface, aggravating wear, while the sensitivity to impurities is reduced under low load, eliminating the need for excessive filtration. This dynamic adjustment mechanism ensures the cleanliness of the lubricating fluid under high loads while avoiding excessive filtration resistance that could affect supply efficiency under low loads, thus achieving a match between filtration accuracy and load requirements.

[0030] In one embodiment, the lubrication status data is the lubrication film thickness data of the copier shaft lubrication area. The control terminal has a first thickness threshold and a second thickness threshold preset. The second thickness threshold is lower than the first thickness threshold. When the lubrication film thickness data is lower than the first thickness threshold, the control terminal slightly adjusts the lubricant delivery flow rate; when the lubrication film thickness data is lower than the second thickness threshold, the control terminal significantly adjusts the lubricant delivery flow rate.

[0031] Specifically, the lubrication status data refers to the thickness of the lubricating film in the copier shaft lubrication area. Two thickness thresholds are pre-stored in the control unit: a first threshold and a second threshold. The second threshold is lower than the first threshold. Both thresholds are calibrated through testing based on shaft material, rotational speed range, and lubricant characteristics. After receiving the lubricating film thickness data in real time, the control unit compares it to the two thresholds: when the thickness is lower than the first threshold but higher than the second threshold, it indicates a slight lubrication deficiency. In this case, the control unit only slightly adjusts the lubricant flow rate to avoid excessive overflow due to a sudden increase in flow. When the thickness is lower than the second threshold, it indicates that the lubricating film can no longer effectively isolate the shaft from the mating parts, posing a risk of direct friction. The control unit then makes a significant correction, quickly replenishing the lubricant to restore an effective lubricating film and ensure the stability of the lubrication effect.

[0032] In one embodiment, when the control terminal adjusts the lubricant delivery flow rate, a step-type adjustment method is adopted. For every preset percentage change in rotational speed or load, the lubricant delivery flow rate is adjusted by a preset flow rate step value.

[0033] Specifically, the control unit adjusts the lubricant delivery flow rate using a stepped adjustment method, transforming continuous changes in speed and load into discrete stepped flow rate adjustments. The control unit pre-stores a preset percentage (set based on shaft operation stability requirements, typically 5%-15%) and corresponding preset flow rate step values ​​(calibrated according to the basic flow range, such as 0.1-0.5 mL / h). During real-time monitoring, when the change in speed or load does not reach the preset percentage, the control unit maintains the current flow rate, avoiding frequent adjustments caused by minor fluctuations. When the change reaches or exceeds the preset percentage, the control unit triggers a flow rate adjustment, with the adjustment range fixed at the preset step value, rather than a continuous proportional change. This method, by setting an adjustment threshold, reduces the system response frequency, lowers the mechanical losses of the micro-flow supply structure, and makes flow rate changes more stable, avoiding fluctuations in lubricant film thickness caused by continuous fine-tuning, thus ensuring the stability of the lubrication state.

[0034] In one embodiment, the gas blown by the cleaning structure to the lubrication area is a dry gas. The control terminal determines the pressure of the dry gas based on the load data of the copier shaft before shutdown. The higher the load data before shutdown, the higher the corresponding pressure of the dry gas is set.

[0035] Specifically, the dry gas blown by the cleaning structure is dehydrated (dew point temperature ≤ -40℃) to prevent the introduction of moisture that could cause corrosion in the lubrication area. The control unit records the load data at the last moment before the shaft stops. This data reflects the contact strength between the shaft and the mating parts before shutdown. Under load, the lubricant is more likely to form viscous residues in the gaps after being squeezed, and impurities may become embedded in the lubrication interface due to pressure, requiring stronger airflow to remove them. The control unit pre-stores the load-pressure correspondence (calibrated through testing, e.g., load ≤ 0.5N). m corresponds to 0.1-0.2MPa, load > 0.5N (m corresponds to 0.2-0.3MPa). The air pressure value is matched according to the load data before shutdown, and then the pressure of the drying gas is stabilized at this value through the pressure regulating valve of the air source module. During blowing, the directional nozzle precisely guides the airflow to the lubrication area. The high air pressure corresponding to high load can enhance the airflow penetration and remove stubborn residues and embedded impurities; the low air pressure under low load avoids the airflow impact damaging the shaft surface or surrounding precision parts. This adaptive design ensures the cleaning effect under different loads and prevents secondary damage caused by over-blowing, ensuring that the lubrication area is clean after shutdown.

[0036] In one embodiment, the lubricant supplied to the lubrication area of ​​the copier shaft is a temperature-adaptive lubricant. While adjusting the lubricant supply flow rate, the control terminal acquires real-time temperature data of the copier shaft. When the real-time temperature data exceeds the preset temperature range, the control terminal controls the micro-flow supply structure to increase the lubricant supply frequency.

[0037] Specifically, the lubricant supplied to the copier shaft lubrication area is a temperature-adaptive lubricant. Through additive modification, it maintains a stable viscosity over a wide temperature range (e.g., -15℃ to 60℃), reducing the impact of temperature changes on lubrication performance. While adjusting the lubricant flow rate based on rotational speed and load, the control unit simultaneously collects real-time temperature data of the lubrication area using miniature thermocouple sensors embedded in the shaft surface. The temperature signal output by the sensors is linearized and then transmitted to the control unit. The control unit has a pre-stored preset temperature range (calibrated according to the optimal operating temperature of the lubricant, e.g., 0℃ to 45℃). When the real-time temperature data exceeds this range (e.g., high temperatures decrease lubricant viscosity, while low temperatures increase viscosity, both potentially altering the lubricant film retention capacity), the control unit, while maintaining the current flow rate baseline, sends a frequency adjustment signal to the micro-flow supply structure. This shortens the original intermittent delivery interval (e.g., 5 seconds / time) to a preset high-frequency interval (e.g., 3 seconds / time). By increasing the number of deliveries per unit time, the influence of temperature changes on lubricant flowability is compensated, ensuring that even with abnormal viscosity, a stable lubricant film can still be formed through more frequent replenishment. This coordinated adjustment of flow rate and frequency makes lubrication control more adaptable to copier shaft temperature fluctuations or temperature changes after long-term operation, avoiding the failure problem of single flow rate adjustment under extreme temperatures.

[0038] In one embodiment, after receiving the lubrication status data, the control terminal first compares the current lubrication status data with the lubrication status data under the same historical period and operation. If the current lubrication status data is lower than the historical average, the lubricant output of the micro-flow supply structure is then adjusted.

[0039] Specifically, the control unit has a built-in data storage module that records the lubrication status data and its corresponding operating data (speed, load) in real time, forming a structured historical database. The data is categorized and stored according to operating data intervals (e.g., every 50 rpm, speed interval, 0.1 N...). (m represents a set of historical data). When the control terminal receives the current lubrication status data, it first uses a data matching algorithm to retrieve historical lubrication status data that perfectly matches the current operating data (same speed, load) from the historical database, and calculates the average of these historical data as a benchmark reference value. The control terminal compares the current lubrication status data with this benchmark reference value: if the current data is higher than or equal to the average value, it is determined to be a normal fluctuation, and the lubricant output is not corrected; if the current data is lower than the average value, and the deviation exceeds the preset allowable range, it is determined to be a deterioration in the actual lubrication status, and only then does the control terminal adjust the output of the micro-flow supply structure according to the degree of deviation.

[0040] Reference Appendix Figure 2 This is a system block diagram of a micro-flow lubrication and anti-contamination control system for a copier shaft proposed in this invention. The system includes: The acquisition unit is used to acquire copier shaft operating data, including rotational speed and load; The flow unit is used by the control terminal to control the filtered lubricating fluid to be delivered to the copier shaft lubrication area through the micro-flow supply structure according to the operating data, and to adjust the lubricating fluid delivery flow rate. The status unit is used to acquire lubrication status data of the copier shaft lubrication area, and the control terminal modifies the lubricant delivery flow rate according to the lubrication status data. The cleaning unit is used to blow gas into the lubrication area by the control terminal after the copier shaft stops running, so as to remove residual lubricant and impurities.

[0041] Reference Figure 3 This invention also provides a computer device, which can be a server, and its internal structure can be as follows: Figure 3 As shown, the computer device includes a processor, memory, display screen, input device, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores the data corresponding to this embodiment. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements the above-described method.

[0042] Those skilled in the art will understand that Figure 3 The structures shown are merely block diagrams of some structures related to the present invention and do not constitute a limitation on the computer devices on which the present invention is applied.

[0043] An embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described method. It is understood that the computer-readable storage medium in this embodiment can be a volatile readable storage medium or a non-volatile readable storage medium.

[0044] In summary, this invention discloses a micro-flow lubrication and anti-contamination control method for copier shafts, belonging to the field of copier shaft lubrication technology. It aims to solve the problems of poor flow matching, fixed filtration accuracy, coarse condition correction, and residual contamination after shutdown in existing methods. This method obtains the copier shaft speed, load, and cumulative running time, and the control terminal determines the initial lubricant flow rate accordingly, simultaneously adjusting the lubricant filtration accuracy according to the load. Combined with lubricant film thickness data in the lubrication area, the output of the micro-flow supply structure is adjusted in stages. When the temperature is abnormal, the lubricant delivery frequency is increased, and after the shaft stops, the dry gas pressure is matched to the pre-shutdown load to clean any residue. This invention achieves precise lubricant supply and anti-contamination coordinated control, reducing lubricant consumption, extending shaft life, avoiding contamination failures, and improving the operational stability of the copier.

[0045] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the present invention and embodiments can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual-rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM, etc.

[0046] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for controlling micro-flow lubrication and preventing contamination in a copier shaft, characterized in that, Includes the following steps: Acquire copier shaft operation data, including rotational speed and load; Based on the operating data, the control unit controls the filtered lubricating fluid to be delivered to the copier shaft lubrication area through the micro-flow supply structure, and adjusts the lubricating fluid delivery flow rate. The system acquires lubrication status data of the copier shaft lubrication area, and the control terminal modifies the lubricant delivery flow rate based on the lubrication status data. After the copier shaft stops running, the control unit controls the cleaning mechanism to blow gas into the lubrication area to remove residual lubricant and impurities.

2. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, The operating data also includes the cumulative running time of the copier shaft. When adjusting the lubricant delivery flow rate, the control terminal simultaneously determines the initial delivery flow rate based on the cumulative running time. For each preset time interval added to the cumulative running time, the initial delivery flow rate is increased by a preset percentage.

3. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, When filtering the lubricating fluid, the control terminal adjusts the filtration accuracy of the lubricating fluid filtration assembly based on the acquired load data. When the load data is higher than the preset load value, the filtration accuracy of the lubricating fluid filtration assembly is increased.

4. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, The lubrication status data is the lubrication film thickness data of the copier shaft lubrication area. The control terminal has a first thickness threshold and a second thickness threshold preset. The second thickness threshold is lower than the first thickness threshold. When the lubrication film thickness data is lower than the first thickness threshold, the control terminal slightly adjusts the lubricant delivery flow rate; when the lubrication film thickness data is lower than the second thickness threshold, the control terminal significantly adjusts the lubricant delivery flow rate.

5. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, When adjusting the lubricant delivery flow rate at the control terminal, a stepped adjustment method is adopted. For every preset percentage change in speed or load, the lubricant delivery flow rate is adjusted by a corresponding preset flow rate step value.

6. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, The gas blown into the lubrication area by the cleaning structure is dry gas. The control terminal determines the pressure of the dry gas based on the load data of the copier shaft before shutdown. The higher the load data before shutdown, the higher the corresponding pressure of the dry gas is set.

7. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, The lubricant supplied to the copier shaft lubrication area is a temperature-adaptive lubricant. While adjusting the lubricant supply flow rate, the control unit acquires real-time temperature data of the copier shaft. When the real-time temperature data exceeds the preset temperature range, the control unit controls the micro-flow supply structure to increase the lubricant supply frequency.

8. The method for controlling micro-flow lubrication and preventing contamination of a copier shaft according to claim 1, characterized in that, After receiving the lubrication status data, the control terminal first compares the current lubrication status data with the lubrication status data under the same historical period and operation. If the current lubrication status data is lower than the historical average, the lubricant output of the micro-flow supply structure is then adjusted.

9. A micro-flow lubrication and anti-contamination control system for a copier shaft, characterized in that, include: The acquisition unit is used to acquire copier shaft operating data, including rotational speed and load; The flow unit is used by the control terminal to control the filtered lubricating fluid to be delivered to the copier shaft lubrication area through the micro-flow supply structure according to the operating data, and to adjust the lubricating fluid delivery flow rate. The status unit is used to acquire lubrication status data of the copier shaft lubrication area, and the control terminal modifies the lubricant delivery flow rate according to the lubrication status data. The cleaning unit is used to blow gas into the lubrication area by the control terminal after the copier shaft stops running, so as to remove residual lubricant and impurities.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the copier shaft micro-flow lubrication and anti-contamination control method according to any one of claims 1 to 8.

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