Equipment maintenance management method

Abstract

The invention relates to the technical field of maintenance management, and provides a maintenance management method for equipment, and the method comprises the steps: obtaining a maintenance period of the equipment; when the maintenance time limit is reached, corresponding maintenance operation is executed on the equipment according to the length of the maintenance period and the maintenance time, and / or parts of the equipment are replaced when the parts break down; and adjusting the next maintenance time of the equipment according to the execution times of the maintenance operation and the part grade of the equipment. The maintenance period and the maintenance operation of the equipment are reasonably designed, and the maintenance operation is executed on the equipment at proper time, so that the equipment is prevented from being broken down or damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance management, and in particular to a maintenance management method for equipment. Background Art

[0002] In industrial equipment management, equipment maintenance (maintenance) is a key link to ensure efficient and stable operation of equipment. Different types of equipment (such as air compressors, pumps, generators, etc.) will be affected by many factors during use, including working environment, load, technical requirements of the equipment itself, etc. Traditional equipment maintenance methods often rely on fixed time cycles or based on equipment operating hours to perform maintenance tasks. This method may result in maintenance cycles that are too short, resulting in waste of resources, or maintenance cycles that are too long, resulting in equipment failure or premature damage. Summary of the invention

[0003] In view of the above-mentioned defects, the purpose of the present invention is to propose a maintenance management method for equipment, aiming to reasonably design the maintenance cycle and maintenance operations of the equipment, perform maintenance operations on the equipment at the appropriate time, so as to avoid equipment failure or damage.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A maintenance management method for equipment, the maintenance management method comprising:

[0006] Get the equipment maintenance period;

[0007] When the maintenance period is reached, perform corresponding maintenance operations on the equipment according to the length of the maintenance period and the maintenance timing, and / or replace the parts of the equipment when the parts fail;

[0008] The next maintenance time of the equipment is adjusted according to the number of maintenance operations performed and the parts level of the equipment.

[0009] Preferably, the next maintenance time of the equipment is adjusted according to the number of maintenance operations performed and the part level of the equipment, satisfying the relationship:

[0010]

[0011] Among them, T base Represents the basic maintenance cycle, T next It indicates the next maintenance cycle of the equipment, N indicates the number of maintenance times, H indicates the equipment operating time, L indicates the overall parts grade of the equipment, α indicates the degree to which the parts grade extends the maintenance cycle, β indicates the degree to which the number of maintenance times shortens the maintenance cycle, and γ indicates the degree to which the equipment operating time adjusts the maintenance cycle.

[0012] Furthermore, before the equipment has its parts replaced, the levels of all individual parts in the equipment are the same, and the overall part level L of the equipment before the parts are replaced is set as the current level;

[0013] When there are key parts among the replaced parts, if the level of the replaced parts is lower than the current level, the overall part level L is set to the lowest level among the key parts;

[0014] When there are no critical parts among the replaced parts, if the number of replaced parts is not less than 1 / 3 of the number of non-critical parts, the overall part level L is set to the lowest level among the non-critical parts.

[0015] Preferably, performing corresponding maintenance operations on the equipment according to the length of the maintenance cycle includes:

[0016] If the equipment is within the first-level maintenance period, perform primary maintenance operations on the equipment;

[0017] If the equipment is in the secondary maintenance period, perform intermediate maintenance on the equipment.

[0018] If the equipment's maintenance period is not less than the third-level maintenance period, perform advanced maintenance operations on the equipment.

[0019] Furthermore, performing corresponding maintenance operations on the equipment according to the maintenance opportunity includes:

[0020] When maintenance operations are performed on the equipment beyond the first-level period of the equipment's maintenance cycle, additional basic maintenance is performed on the equipment;

[0021] When maintenance operations are performed on the equipment beyond the secondary period of the equipment's maintenance cycle, additional enhanced maintenance is performed on the equipment;

[0022] When maintenance operations are performed on equipment beyond the third-level period of the equipment's maintenance cycle, additional comprehensive maintenance is performed on the equipment.

[0023] Preferably, when a part fails, it is determined whether the failure time of the part is within the maintenance period and the time interval with the maintenance period is less than the critical time interval:

[0024] If the failure time of the part is within the maintenance period and the time interval with the maintenance period is less than the critical time interval, the maintenance operation is performed on the equipment simultaneously when the part is replaced;

[0025] Otherwise, at the next maintenance operation, all maintenance operations on the replaced parts will be omitted;

[0026] The critical time interval is prolonged as the importance of the critical component that fails increases.

[0027] Preferably, the device is provided with a device serial code, and further includes:

[0028] Scan the serial code of the device to obtain the production area of ​​the device;

[0029] If the production area and maintenance area of ​​the equipment are different, provide users with maintenance options:

[0030] If the user responds by choosing to permanently change the maintenance location, the user will be charged a maintenance area change fee;

[0031] If the user responds that he only wants to change the maintenance location this time, the user will be charged a one-time area change fee, where the maintenance area change fee is higher than the one-time area change fee.

[0032] Preferably, key parts are provided with part serial codes, and when a part fails, replacement of the parts of the equipment includes:

[0033] If the faulty part does not have a part serial number, the faulty part is directly replaced;

[0034] If the faulty part has a part serial code, the faulty part will be replaced and the parts connected to it will be maintained.

[0035] Furthermore, the maintenance operations include functional testing of key parts, wear and tear testing of key parts, testing of core functions of equipment and energy efficiency testing of equipment.

[0036] Furthermore, after performing the corresponding maintenance operation on the equipment, it also includes determining the status of the equipment:

[0037] If the results of key parts function test, key parts loss test, equipment core function test and equipment energy efficiency test are all normal, the equipment status is considered healthy;

[0038] If the results of the wear and tear test of key parts and / or the energy efficiency test of the equipment are abnormal, the equipment status will be considered sub-healthy;

[0039] If the result of the functional test of the key parts is abnormal, the state of the equipment is regarded as slightly pathological or seriously faulty according to the number of key parts with abnormal functional test results;

[0040] If the detection result of the core function of the device is abnormal, the status of the device is considered to be a serious failure.

[0041] One of the above technical solutions has the following advantages or beneficial effects:

[0042] The present invention can ensure that the equipment is in the best operating state by obtaining the maintenance cycle of the equipment and performing maintenance operations in time when the maintenance period is reached. Effective maintenance can reduce the equipment failure rate, improve the operating efficiency of the equipment, and reduce the downtime caused by equipment failure, thereby improving overall production efficiency. According to the length of the equipment maintenance cycle and the maintenance timing, performing different maintenance operations on the equipment can optimize the maintenance strategy and effectively avoid excessive maintenance or neglect of necessary maintenance, thereby rationally allocating resources. When the best maintenance opportunity is missed, more complex maintenance operations are required to achieve more comprehensive maintenance. By adjusting the maintenance cycle according to the number of maintenance times and parts grades of the equipment, such as when the equipment has undergone multiple maintenance or low-end parts are used, the maintenance cycle is shortened in time and inspections and replacements are carried out, which can reduce the risk of failure, avoid unnecessary maintenance, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0044] Figure 1 It is a flowchart of the maintenance management method provided by an embodiment of the present invention;

[0045] Figure 2 It is a schematic diagram of determining the state of equipment in the maintenance management method provided by an embodiment of the present invention;

[0046] Figure 3 It is a reminder interface after the air compressor reaches the maintenance period in the maintenance management method provided by the embodiment of the present invention;

[0047] Figure 4 It is a replacement interface of key parts of an air compressor in the maintenance management method provided by an embodiment of the present invention;

[0048] Figure 5 It is a schematic interface of the maintenance operation of an air compressor of the maintenance management method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0050] In the present invention, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0051] like Figure 1 As shown, a preferred embodiment of the present invention is a maintenance management method for equipment, and the maintenance management method comprises the following steps:

[0052] S1: Get the maintenance period of the equipment;

[0053] S2: When the maintenance period is reached, the corresponding maintenance operations are performed on the equipment according to the length of the maintenance period and the maintenance timing, and / or the parts of the equipment are replaced when the parts fail;

[0054] S3: Adjust the next maintenance time of the equipment according to the number of maintenance operations performed and the parts level of the equipment.

[0055] Alternatively, taking an air compressor as an example, the equipment maintenance cycle is set based on the equipment's use environment, frequency of use, and technical requirements. The maintenance cycle refers to the time interval for regular maintenance, inspection, and repair of the equipment during use. Reasonable setting of the maintenance cycle is crucial. A cycle that is too short will lead to unnecessary waste of resources, while a cycle that is too long may cause equipment failures if it is not maintained in a timely manner. The maintenance cycle of equipment includes but is not limited to equipment load: the intensity of use of the equipment in actual operation. The greater the load, the faster the equipment wears, and the maintenance cycle should be appropriately shortened; environmental conditions: the impact of factors such as temperature, humidity, dust and chemical corrosion on the equipment. For example, equipment used in a high temperature, humid and dusty environment requires more frequent maintenance; equipment parts: for example, mobile phones of different prices use different parts, and their service life or quality of use will also be different. If a mobile phone uses a low-end battery, then the service life of the mobile phone is low and the battery needs to be replaced more frequently. Similarly, if the parts of the equipment with the same function are of different grades, the required maintenance cycle is also different; historical data and experience: the maintenance cycle of many equipment is set based on the historical use data of the equipment and the experience of similar equipment. Manufacturers usually give recommended maintenance cycles, but data in actual use will further optimize this cycle. Through regular inspection and repair of equipment, it is possible to effectively prevent equipment failures caused by excessive wear, aging, etc. Regular inspection and repair on machines with high production frequency or working frequency can ensure the interests of manufacturers or consumers.

[0056] In step S2, some equipment can be designed to be fully inspected or maintained every 1000 working hours or every year, and the "maintenance timing" refers to the specific maintenance time point after the equipment reaches the maintenance period. For example, the maintenance period of the equipment has reached 1000 hours, but due to some reasons, it has to wait for another 120 hours of work before maintenance is carried out. Therefore, the maintenance operation can be expanded to protect the equipment more comprehensively and meticulously. When the maintenance period of the equipment (for example, every 1000 hours or every 6 months) is reached, it is necessary to start performing relevant maintenance operations. The maintenance operations may include inspecting, cleaning, lubricating, testing and adjusting the equipment. The corresponding maintenance operations of equipment with a maintenance period of one year and half a month are different. During the operation of the equipment, some parts will lose their original functions due to wear, fatigue, aging or poor working environment, resulting in the equipment being unable to operate normally. The failure of a part will manifest itself as failure to start, performance degradation, increased noise, overheating, etc. When an obvious failure of a device part is detected or is about to reach the failure point, it is necessary to replace the part. The replacement operation includes disassembling the damaged part, checking the status of the relevant parts, cleaning and replacing the new part. Part replacement can restore the normal operation of the equipment to the greatest extent and avoid more serious failures, such as Figure 4 It is the replacement interface of key parts of air compressor. Figure 5 This is a schematic interface for the maintenance operation of the air compressor. After the maintenance operation, the cause analysis and solution will be generated to facilitate the analysis and planning of the use of the equipment.

[0057] In step S3, the next maintenance time needs to be adjusted according to the number of maintenance executions of the equipment (i.e., how many maintenance operations the equipment has undergone) and the part grade of the equipment (i.e., the quality grade of the equipment parts). If the grade of a certain part is low (for example, low-end parts are used), it needs to be inspected and replaced in advance, and the maintenance cycle should be advanced. During the use of the equipment, each maintenance will accumulate a certain number of "maintenance times". Equipment with a large number of maintenance times often means that the equipment has been running for a period of time, and the various components may have been worn, so the time for its next maintenance may be advanced. For example, if the maintenance cycle of the equipment is set to perform maintenance every 1,000 hours, but the equipment has been maintained twice, the time for the next maintenance needs to be shortened.

[0058] By obtaining the equipment's maintenance cycle and performing maintenance operations in a timely manner when the maintenance period is reached, you can ensure that the equipment is in the best operating state. Effective maintenance can reduce equipment failure rates, improve equipment operating efficiency, and reduce downtime caused by equipment failures, thereby improving overall production efficiency. Performing different maintenance operations on equipment based on the length of the equipment's maintenance cycle and maintenance timing can optimize maintenance strategies and effectively avoid excessive maintenance or neglect of necessary maintenance, thereby rationally allocating resources. When the best maintenance opportunity is missed, more complex maintenance operations are required to achieve more comprehensive maintenance. By adjusting the maintenance cycle based on the number of equipment maintenance and part grades, such as when the equipment has undergone multiple maintenance or low-end parts are used, the maintenance cycle can be shortened in a timely manner and inspected and replaced, which can reduce the risk of failure, avoid unnecessary maintenance, and reduce maintenance costs.

[0059] Preferably, the next maintenance time of the equipment is adjusted according to the number of maintenance operations performed and the part level of the equipment, satisfying the relationship:

[0060]

[0061] Among them, T base Represents the basic maintenance cycle, T next It indicates the next maintenance cycle of the equipment, N indicates the number of maintenance times, H indicates the equipment operating time, L indicates the overall parts grade of the equipment, α indicates the degree to which the parts grade extends the maintenance cycle, β indicates the degree to which the number of maintenance times shortens the maintenance cycle, and γ indicates the degree to which the equipment operating time adjusts the maintenance cycle.

[0062] Specifically, all equipment has a basic maintenance cycle as a benchmark for calculating the adjusted maintenance cycle under different conditions. The overall parts grade of the equipment represents the quality of the equipment. If the parts of the equipment are all high-grade parts, the maintenance time will be long. A large number of maintenance times indicates that the equipment is in a more frequent maintenance state. The equipment may have a higher failure rate, resulting in a shortened next maintenance cycle. The longer the equipment runs, the more serious the wear of parts may be, so more frequent maintenance is required. The maintenance cycle needs to be adjusted according to the running time. In addition, α, β and γ will depend on the function and working mode of the equipment. By dynamically adjusting the maintenance cycle of the equipment, the risk of excessive or insufficient maintenance of the equipment is reduced, and the effective service life of the equipment is extended. By comprehensively considering the historical operation of the equipment, the condition of the parts and the load conditions, the maintenance cycle can be reasonably predicted, and the repair and maintenance needs of the equipment can be balanced without sudden failures.

[0063] Preferably, before replacing parts of the equipment, the levels of all individual parts in the equipment are the same, and the overall part level L of the equipment before replacing parts is set as the current level;

[0064] When there are key parts among the replaced parts, if the level of the replaced parts is lower than the current level, the overall part level L is set to the lowest level among the key parts;

[0065] When there are no critical parts among the replaced parts, if the number of replaced parts is not less than 1 / 3 of the number of non-critical parts, the overall part level L is set to the lowest level among the non-critical parts.

[0066] Specifically, each device has key parts that play an important role, and any performance degradation may cause equipment failure. For example, the engine, transmission box, etc., non-critical parts have little impact on the daily operation of the equipment, such as body panels, some auxiliary parts, etc., their failures, although resulting in performance degradation, usually do not directly cause the equipment to stop running. When adjusting the next maintenance time of the equipment, it is necessary to first determine the overall part level L of the equipment. For example, in an industrial robot, the overall part level is 8. During the recent maintenance, the technician replaced the control unit (key part), whose original level was 8 and the new level after replacement was 5. At the same time, the technician also replaced three non-critical parts: the shell panel (level 7), the conveyor belt (level 6) and the sensor (level 5). Since a key part was replaced, its new level 5 is lower than the overall level 8. According to the equipment management rules, the overall part level is immediately adjusted to 5 to reflect the health status of the equipment. In addition, the technician also noticed that the number of replaced non-critical parts reached 1 / 3 of the total number of non-critical parts, and the minimum level of non-critical parts is 5, so the overall level was not further reduced. Dynamic grade adjustment based on the replacement of critical and non-critical parts, and definition of clear grade standards and replacement rules can effectively reflect the actual performance of the equipment, provide a scientific basis for subsequent maintenance and operation decisions, and reduce the risk of equipment failure.

[0067] Preferably, performing corresponding maintenance operations on the equipment according to the length of the maintenance cycle includes:

[0068] If the equipment is within the first-level maintenance period, perform primary maintenance operations on the equipment;

[0069] If the equipment is in the secondary maintenance period, perform intermediate maintenance on the equipment.

[0070] If the equipment's maintenance period is not less than the third-level maintenance period, perform advanced maintenance operations on the equipment.

[0071] Specifically, the first-level maintenance cycle, the second-level maintenance cycle and the third-level maintenance cycle can be regarded as short-term maintenance, medium-term maintenance and long-term maintenance respectively. Primary maintenance operations generally include basic inspections and simple maintenance, with the aim of ensuring that the equipment can still work stably after long-term operation and reducing failures caused by basic problems. Taking a certain brand of air compressor as an example, primary maintenance operations may include appearance inspection: check whether there is obvious damage, oil leakage or corrosion on the outside of the air compressor; cleaning: clean dust and debris on the surface of the air compressor, especially the radiator and cooling fan areas to ensure good heat dissipation; check the lubrication system: check the oil level of the lubricating oil, add oil if necessary, and ensure that the oil circuit is unobstructed; check the electrical connection: check whether the electrical wiring is loose or aging, and ensure that the electrical signal is normal; operation panel inspection: confirm that the operation panel and display screen function normally to ensure that there are no fault reminders; clean the filter: clean or replace the air and oil filters to ensure that the gas flow is unobstructed to ensure the air quality and cleanliness of the oil. The secondary maintenance cycle for air compressors is usually 3-6 months or after several hundred hours of operation, the core components need to be inspected and maintained in detail. Intermediate maintenance operations may include: Check key components: Perform a detailed inspection of the compressor cylinder, exhaust valve, piston and connecting rod to ensure that there is no obvious wear or damage; Replace lubricating oil: Replace the lubricating oil according to usage, and check the quality of the lubricating oil and the condition of the oil filter; Adjust belt tension: Check the drive belt of the air compressor to ensure that its tension is appropriate, and adjust or replace it if necessary; Check the cooling system: Check the flow and temperature of the cooling water to ensure that the cooling system is working properly; Test electrical components: Check the motor, starter and control system to ensure that the electrical components are operating normally.

[0072] The third-level maintenance cycle is generally based on years, and in-depth inspection and maintenance are required to ensure the long-term stable operation of the equipment. Advanced maintenance operations include: Comprehensive disassembly inspection: disassemble the air compressor and check the status of major components such as the cylinder, piston, exhaust valve, intake valve, oil pump, etc. to ensure that there is no damage; Replace worn parts: According to the inspection results, replace worn parts in time, such as seals, valve plates and other consumable parts; Deep cleaning: clean the oil and debris accumulated inside the air compressor, especially the radiator and cooling system, to ensure good heat dissipation and operating efficiency; Calibrate the control system: calibrate the sensors and parameters of the control system to ensure that the equipment operates under the best working conditions; Pressure test and performance verification: perform pressure test under the load of the air compressor to verify its working performance under different working conditions, including pressure, flow and exhaust temperature; System inspection and upgrade: if necessary, detect the system software version and upgrade it to ensure system compatibility and performance optimization; Safety inspection: check whether the functions of the safety valve, alarm device and emergency stop device are normal to ensure the safety of the equipment in abnormal situations. The first-level maintenance cycle (long-term maintenance) focuses on basic inspection and cleaning to ensure that the equipment does not have obvious faults. The second-level maintenance cycle (medium-term maintenance) will conduct detailed inspections and necessary replacements of key components to deal with problems that may arise during equipment operation. The third-level maintenance cycle (short-term maintenance) conducts in-depth equipment maintenance and performance testing to ensure the stability and efficiency of the equipment after long-term operation.

[0073] Preferably, performing corresponding maintenance operations on the equipment according to the maintenance opportunity includes:

[0074] When maintenance operations are performed on the equipment beyond the first-level period of the equipment's maintenance cycle, additional basic maintenance is performed on the equipment;

[0075] When maintenance operations are performed on the equipment beyond the secondary period of the equipment's maintenance cycle, additional enhanced maintenance is performed on the equipment;

[0076] When maintenance operations are performed on equipment beyond the third-level period of the equipment's maintenance cycle, additional comprehensive maintenance is performed on the equipment.

[0077] Specifically, assuming that the basic maintenance plan is based on 3,000 hours, the first-level period is 100 hours. After the maintenance period is exceeded, the equipment may have expected minor faults when it is operated again, so the equipment can be maintained, inspected and cleaned: routine inspection and cleaning of the basic components of the air compressor, such as air filters, coolers, exhaust systems, oil-gas separators, etc. Ensure the cleanliness of these components to prevent pollution and dust accumulation from causing reduced efficiency, tightness inspection: Check the tightness of all exposed screws, bolts and joints to prevent vibration or damage caused by looseness; Check the drive belt and belt tension: Check the wear and tension of the drive belt, and adjust or replace it if necessary. When the first-level maintenance period is exceeded, the basic maintenance is mainly for routine inspection and basic cleaning of the equipment to ensure that the equipment can still maintain efficient operation after a long period of operation. Similarly, the second-level period is 200 hours. Enhanced maintenance of the equipment may include increasing operating data records: carefully recording the operating data of the equipment after the maintenance period has expired, including pressure, temperature, current consumption, etc., to facilitate later analysis and evaluation of the working status of the equipment; filter and cooler inspection: check the air filter and cooler to ensure that there is no blockage, and perform simple cleaning, such as blowing away surface dust with air; lubrication system inspection: check the pipes and joints of the lubrication system to ensure that there is no oil leakage, and confirm whether the viscosity of the lubricating oil is normal; pneumatic system component inspection: check whether the pneumatic pipe connections are tight, find possible leaks, and use soapy water to detect leaking areas. Similarly, the second-level period is 300 hours. Comprehensive maintenance of the equipment can include a comprehensive system inspection: check the overall operation of the equipment, pay attention to whether the vibration, noise, etc. are normal, and whether there are any abnormal fluctuations; drainage inspection: check whether the condensate drain valve is unobstructed, and regularly drain the condensate in the system to prevent the impact of water accumulation on equipment performance; seal inspection: visually inspect all seals to check for aging and cracking, and perform simple replacement when necessary; electrical connection point overview: check all electrical connection points to ensure that there is no looseness, and give necessary cleaning to prevent dirt from affecting electrical contact, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the operation interface reminding the user to perform timely maintenance after the air compressor reaches the maintenance period.

[0078] Preferably, when a part fails, it is determined whether the failure time of the part is within the maintenance period and the time interval with the maintenance period is less than the critical time interval:

[0079] If the failure time of the part is within the maintenance period and the time interval with the maintenance period is less than the critical time interval, the maintenance operation is performed on the equipment simultaneously when the part is replaced;

[0080] Otherwise, at the next maintenance operation, all maintenance operations on the replaced parts will be omitted;

[0081] The critical time interval increases as the importance of the failed component increases.

[0082] First, the time interval between the failure time and the scheduled maintenance period (such as the next scheduled maintenance time) is calculated. If the failure occurs before the maintenance period and the interval with the scheduled maintenance time is less than the critical time interval, a synchronous maintenance operation is performed, otherwise the next judgment is made. If the part where the failure occurs is a critical part and the time interval with the maintenance period is less than the critical time interval, the corresponding maintenance operation is performed on the equipment in advance when the part is replaced; if the time interval exceeds the critical time interval, the maintenance operation of the critical part is saved during the next maintenance operation, saving time cost. Assume that a device is scheduled to perform routine maintenance every 1000 hours. During one operation, part A fails, the failure time is 950 hours, and part A is a critical part, and its critical time interval is 50 hours. Since the time between the failure and the next maintenance is less than 50 hours, it meets the critical time interval requirement. Therefore, when part A is replaced, maintenance operations will be performed on the equipment synchronously (that is, maintenance operations will be performed on the equipment in advance), such as lubrication and cleaning. Part B also fails at 950 hours, and part B is a non-critical part, and the critical time interval is 30 hours. Since the failure occurred more than 30 hours before the next maintenance, no additional maintenance operation will be performed when replacing part B, and maintenance operations will be performed at the next maintenance. In this way, maintenance operations can be reasonably arranged according to the failure time and importance of the parts, ensuring that key components are maintained in a timely manner and avoiding unnecessary maintenance of non-critical parts.

[0083] Preferably, the device is provided with a device serial code, and further includes:

[0084] Scan the serial code of the device to obtain the production area of ​​the device;

[0085] If the production area and maintenance area of ​​the equipment are different, provide users with maintenance options:

[0086] If the user responds by choosing to permanently change the maintenance location, the user will be charged a maintenance area change fee;

[0087] If the user responds that he only wants to change the maintenance location this time, the user will be charged a one-time area change fee, where the maintenance area change fee is higher than the one-time area change fee.

[0088] Since the production and sales of equipment may belong to different third-party companies, the production area of ​​the equipment is the main area, and the user's equipment maintenance needs to be the same as the production area. Assume that the serial code of a device is ABC123, and the original production area of ​​the device is area A. After the user relocates the device, the area where the user performs maintenance is area B. By scanning the device serial code, it is identified that the production area of ​​the device is different from the maintenance area, so the user will be prompted whether to change the maintenance location. The user can choose to permanently change the maintenance location or only change the maintenance location this time. If the user chooses "permanently change the maintenance location", the maintenance area of ​​the device is changed from area A to area B. Subsequently, the user needs to perform maintenance operations in area B and cannot perform maintenance operations in area A. Subsequently, the user needs to pay the maintenance area change fee, for example, the fee is 500 yuan. After the user confirms, the system updates the maintenance area of ​​the device to area B and charges a fee of 500 yuan. If the user only chooses area B for this maintenance, he needs to pay a fee of 200 yuan, and the next maintenance area of ​​the device is area A. The maintenance of equipment in different areas can be adjusted according to demand to ensure that users can get the best service in the right place.

[0089] Preferably, key parts are provided with part serial codes, and when a part fails, replacement of the parts of the equipment includes:

[0090] If the faulty part does not have a part serial number, the faulty part is directly replaced;

[0091] If the faulty part has a part serial code, the faulty part will be replaced and the parts connected to it will be maintained.

[0092] Specifically, key parts are provided with part serial codes, and the specific information of the parts, such as the production address or manufacturer, model, installation date and replacement history, can be quickly identified by scanning the serial code. Non-key parts can be represented as common parts, that is, they can be purchased on the market, but key parts are unique to the manufacturer of the production equipment, and when a part with a serial code fails, not only will the part be replaced, but other parts related to the part will be actively inspected and maintained based on the equipment structure and the relationship between the parts, and other parts that may be affected will be judged through historical data analysis and failure mode recognition. For example, if there is a problem with the pump shaft, the parts such as the hydraulic valve, seal ring and motor connected to the pump shaft will be checked after the parts are replaced. Through the interdependence of parts and historical failure data analysis, the system can implement preventive maintenance, not only by identifying potential problems early and reducing the impact of single failures, but also by discovering potential risks associated with failures in the equipment and conducting more extensive inspections and maintenance.

[0093] Furthermore, the maintenance operations include functional testing of key parts, wear and tear testing of key parts, testing of core functions of equipment and energy efficiency testing of equipment.

[0094] The key parts of the equipment usually undertake important work tasks. Any malfunction may cause the equipment to not operate normally or even cause failure. Regular functional testing can detect abnormalities or failures of parts in time to avoid equipment downtime or more serious damage. For example, once the core parts such as motors, pumps, sensors, etc. fail, it will directly affect the performance of the entire equipment. Functional testing can ensure that the performance of key parts meets the predetermined standards, thereby ensuring that the equipment operates in the best condition and improving production efficiency and equipment reliability.

[0095] During the long-term operation of equipment, parts will gradually wear or age due to friction, pressure, temperature changes, etc. By regularly checking the wear degree of key parts, potential hidden dangers of failure can be discovered in advance to avoid equipment shutdown or more serious failures caused by part damage. Wear detection helps to optimize the maintenance cycle of equipment, ensure that parts are replaced before reaching the wear limit, and prevent "sudden failures" from occurring.

[0096] The core function of the equipment is the basis for ensuring that the equipment can complete its main work tasks. If there is a problem with the core function, the equipment cannot operate effectively. By regularly testing the core functions (such as refrigeration, heating, compression, etc.), it can be ensured that the equipment operates stably within the design performance range. Core function testing can prevent small problems from accumulating into major failures. For example, testing the cooling effect of the air conditioner and the power generation capacity of the generator can ensure that the equipment can be repaired in time and reduce production interruption time.

[0097] As the equipment is used for a longer time, its energy efficiency may gradually decrease, leading to increased energy consumption. Energy efficiency testing can help discover possible inefficiencies in equipment during operation, such as decreased cooling capacity of air-conditioning systems, increased resistance of pumps or fans, etc. Regular energy efficiency testing can help to promptly identify equipment energy efficiency declines, take measures to adjust or maintain (such as cleaning, calibration or replacement of parts), improve the energy efficiency of equipment, and thus reduce operating costs and energy consumption. Energy efficiency testing can also help achieve green operation and maintenance of equipment, promote energy conservation and consumption reduction, and meet environmental protection requirements.

[0098] Furthermore, after performing the corresponding maintenance operation on the equipment, it also includes determining the status of the equipment:

[0099] If the results of key parts function test, key parts loss test, equipment core function test and equipment energy efficiency test are all normal, the equipment status is considered healthy;

[0100] If the results of the wear and tear test of key parts and / or the energy efficiency test of the equipment are abnormal, the equipment status will be considered sub-healthy;

[0101] If the result of the functional test of the key parts is abnormal, the state of the equipment is regarded as slightly pathological or seriously faulty according to the number of key parts with abnormal functional test results;

[0102] If the detection result of the core function of the device is abnormal, the status of the device is considered to be a serious failure.

[0103] The function of key parts (such as compressors, air valves, pistons, etc.) directly determines whether the equipment can work properly. If the function of key parts is abnormal, it means that the operating ability of the equipment has been affected. If the function test results of multiple key parts are abnormal, the status of the equipment is directly regarded as "slightly sick" or "serious failure", which can warn the operator in advance to carry out repairs in time. During the long-term operation of the equipment, key parts will inevitably wear out, and wear detection is used to judge the health status of the parts. When the test results are abnormal, it means that the equipment has declined to a certain extent, which may affect the performance or life of the equipment. The equipment is regarded as "sub-healthy", indicating that the equipment needs regular maintenance, parts replacement or adjustment to avoid more serious failures. The core functions of the equipment (such as airflow output, pressure regulation, etc.) are a direct manifestation of whether the equipment is stable and efficient. If the core functions are abnormal, it will directly affect the output and production efficiency of the equipment. Therefore, when the core function test results are abnormal, immediately judging the equipment as "serious failure" can avoid the equipment from shutting down or causing a larger failure due to the failure of the core function. Energy efficiency testing reflects the energy consumption efficiency of the equipment during operation. If the energy efficiency of the equipment is abnormal (such as excessive energy consumption), it means that the equipment may be operating abnormally, or there may be friction, wear and other problems with the parts, resulting in reduced equipment efficiency. By combining energy efficiency abnormalities with loss abnormalities, the equipment is judged to be in a "sub-healthy" state, and problems can be discovered early for adjustment or repair. Comprehensive assessments are conducted from multiple dimensions, including the health status of key equipment components, the effectiveness of core functions, and energy efficiency performance, to ensure that corresponding maintenance measures can be taken in a timely manner under abnormal conditions of varying degrees. Through hierarchical and detailed status judgments, the risks brought by equipment failures can be effectively avoided, maintenance decisions can be optimized, and long-term stable operation of the equipment can be ensured. Figure 2 As shown, Figure 2 A schematic diagram for determining the status of a device.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0105] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A maintenance management method for equipment, characterized in that: The maintenance management method comprises: Get the maintenance period of the equipment; When the maintenance period is reached, perform corresponding maintenance operations on the equipment according to the length of the maintenance period and the maintenance timing, and / or replace the parts of the equipment when the parts fail; The next maintenance time of the equipment is adjusted according to the number of maintenance operations performed and the parts level of the equipment.

2. The maintenance management method according to claim 1, characterized in that: The next maintenance time of the equipment is adjusted according to the number of maintenance operations and the parts level of the equipment, satisfying the relationship: Among them, T base Represents the basic maintenance cycle, T next It indicates the next maintenance cycle of the equipment, N indicates the number of maintenance times, H indicates the equipment operating time, L indicates the overall parts grade of the equipment, α indicates the degree to which the parts grade extends the maintenance cycle, β indicates the degree to which the number of maintenance times shortens the maintenance cycle, and γ indicates the degree to which the equipment operating time adjusts the maintenance cycle.

3. The maintenance management method according to claim 2, characterized in that: Before replacing parts of the equipment, the levels of all individual parts in the equipment are the same, and the overall part level L of the equipment before replacing parts is set as the current level; When there are key parts among the replaced parts, if the level of the replaced parts is lower than the current level, the overall part level L is set to the lowest level among the key parts; When there are no critical parts among the replaced parts, if the number of replaced parts is not less than 1 / 3 of the number of non-critical parts, the overall part level L is set to the lowest level among the non-critical parts.

4. The maintenance management method according to claim 1, characterized in that: Depending on the length of the maintenance cycle, the corresponding maintenance operations performed on the equipment include: If the equipment is within the first-level maintenance period, perform primary maintenance operations on the equipment; If the equipment is in the secondary maintenance period, perform intermediate maintenance on the equipment. If the equipment's maintenance period is not less than the third-level maintenance period, perform advanced maintenance operations on the equipment.

5. The maintenance management method according to claim 4, characterized in that: Perform maintenance operations on the equipment according to the maintenance opportunity, including: When maintenance operations are performed on the equipment beyond the first-level period of the equipment's maintenance cycle, additional basic maintenance is performed on the equipment; When maintenance operations are performed on the equipment beyond the secondary period of the equipment's maintenance cycle, additional enhanced maintenance is performed on the equipment; When maintenance operations are performed on equipment beyond the third-level period of the equipment's maintenance cycle, additional comprehensive maintenance is performed on the equipment.

6. The maintenance management method according to claim 1, characterized in that: When a part fails, determine whether the failure time of the part is within the maintenance period and whether the time interval with the maintenance period is less than the critical time interval: If the failure time of the part is within the maintenance period and the time interval with the maintenance period is less than the critical time interval, the maintenance operation is performed on the equipment simultaneously when the part is replaced; Otherwise, at the next maintenance operation, all maintenance operations on the replaced parts will be omitted; The critical time interval is prolonged as the importance of the critical component that fails increases.

7. The maintenance management method according to claim 1, characterized in that: The device has a device serial number, which also includes: Scan the serial code of the device to obtain the production area of ​​the device; If the production area and maintenance area of ​​the equipment are different, provide users with maintenance options: If the user responds by choosing to permanently change the maintenance location, the user will be charged a maintenance area change fee; If the user responds that he only wants to change the maintenance location this time, the user will be charged a one-time area change fee, where the maintenance area change fee is higher than the one-time area change fee.

8. The maintenance management method according to claim 1, characterized in that: Key parts are equipped with part serial numbers. When a part fails, the replacement of the equipment parts includes: If the faulty part does not have a part serial number, the faulty part is directly replaced; If the faulty part has a part serial code, the faulty part will be replaced and the parts connected to it will be maintained.

9. The maintenance management method according to claim 8, characterized in that: The maintenance operations include functional testing of key parts, wear and tear testing of key parts, testing of equipment core functions and energy efficiency testing of equipment.

10. The maintenance management method according to claim 9, characterized in that: After performing the corresponding maintenance operations on the equipment, the equipment status is also determined: If the results of key parts function test, key parts loss test, equipment core function test and equipment energy efficiency test are all normal, the equipment status is considered healthy; If the results of the wear and tear test of key parts and / or the energy efficiency test of the equipment are abnormal, the equipment status will be considered sub-healthy; If the result of the functional test of the key parts is abnormal, the state of the equipment is regarded as slightly pathological or seriously faulty according to the number of key parts with abnormal functional test results; If the detection result of the core function of the device is abnormal, the status of the device is considered to be a serious failure.

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