Method, program, and device for monitoring the condition of sealing components.

Abstract

To easily grasp a state of seal components installed in a hydraulic device, and to perform maintenance at a proper timing in which a working period and a service life of the seal components are made compatible by providing maintenance information.SOLUTION: A method for monitoring a state of seal components includes: a step (pressure information collecting means 14) of acquiring pressure information in a sealed region (10) sealed by seal components (seals 8a, 8b) in a hydraulic device (6); a step (state determination part 18) of monitoring a transitional state of the pressure information to determine a state of the seal components; and a step (screen generation part 20) of generating a state monitoring screen (50) including at least state information (state information display part 52) and maintenance information (maintenance instruction display part 54) of the seal components based on a determination result.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The technology of the present disclosure relates to a technology for monitoring the state of a seal component installed in an operating part of a hydraulic device and determining the timing of replacement processing and the like.

Background Art

[0002] For example, a hydraulic device that uses hydraulic pressure, such as a hydraulic cylinder, to operate a piston in a predetermined direction prevents leakage of the working fluid by arranging seal components such as a plurality of packings in the gap between the piston rod and the cylinder case in the cylinder tube. Such leakage of the working fluid not only causes the hydraulic device to fail to operate as set, but also makes it impossible to maintain sufficient force, for example, making it impossible to withstand the weight of the material being transported, which may affect the work and compromise safety. Conventionally, some hydraulic devices monitor the leakage state and, when leakage is detected, notify alert information to execute packing replacement and other repair processes. [[ID=​​​​​​​​​​​​​​​​​​​​​​​​​​By the way, if a seal component installed in hydraulic equipment breaks and causes leakage, the seal component must be replaced. However, such replacement work must be entrusted to a specialized company, and it takes a considerable amount of time to restore functionality. Therefore, when working with hydraulic equipment, it is necessary to avoid a situation where the seal component reaches the end of its lifespan and its sealing performance deteriorates during the use of the equipment. However, conventional technologies that monitor leakage based on pressure fluctuations make it difficult to predict the lifespan of seal components in advance, and it is also difficult for users of hydraulic equipment to understand the current condition of seal components and decide whether or not to perform maintenance. Furthermore, replacing seal components earlier than the recommended maintenance interval, such as after each operation using hydraulic equipment, can prevent work interruptions and increase the safety margin of operations, but it can also lead to higher costs and increased workload, potentially compromising the convenience of hydraulic equipment.

[0006] The inventors of the technology disclosed herein have found that planned maintenance of hydraulic equipment can be achieved by visualizing the state of seal components determined from the transition state of pressure values ​​and by providing maintenance information.

[0007] Patent Document 1 neither discloses nor suggests any solution to this problem, and the configuration disclosed in Patent Document 1 cannot solve this problem.

[0008] Therefore, the purpose of the technology disclosed herein is, based on the above-mentioned problems and findings, to enable easy understanding of the condition of seal components installed in hydraulic equipment, and to facilitate maintenance at an appropriate time that balances the timing of work with the lifespan of the seal components by providing maintenance information. [Means for solving the problem]

[0009] To achieve the above objective, one aspect of the seal component condition monitoring method of this disclosure includes the steps of: acquiring pressure information within a sealed area sealed by the seal component in a hydraulic device; monitoring the transition state of the pressure information to determine the state of the seal component; and, based on the determination result, including at least the state information and maintenance information of the seal component. Set for the aforementioned status information The display area is divided into predetermined proportions based on the maintenance threshold, and at predetermined timing A first information display unit that represents the transition state of the aforementioned state information, and the aforementioned state information at the aforementioned timing It comprises a second information display unit that displays the maintenance information determined from the above. This includes the step of generating a status monitoring screen.

[0010] The above-described method for monitoring the state of a sealing component includes a step of generating a state monitoring screen in which display information, including a color or pattern representing the state information and the maintenance information, is changed according to the transition state of the determination result of the sealing component. The above-described method for monitoring the condition of a seal component includes a step of acquiring maintenance processing information performed on the seal component, and the acquired maintenance processing information is displayed on the condition monitoring screen. The above-described method for monitoring the status of a sealing component includes the steps of generating alert information when the status information reaches a set state, and transmitting the generated alert information and the status monitoring screen to a registered terminal device. The above-described method for monitoring the condition of a seal component includes the steps of acquiring identification information and placement position information set for the seal component, and storing the detected pressure information and the placement position information of the seal component in a storage unit in association with the identification information, wherein the condition monitoring screen displays the placement position information, condition information, and maintenance information of the seal component in association with the identification information.

[0011] To achieve the above objective, one aspect of the seal component condition monitoring program of this disclosure is a computer-implemented program that includes a function to acquire pressure information within a sealed area sealed by a seal component in a hydraulic device, a function to monitor the transition state of the pressure information and determine the state of the seal component, and based on the determination result, includes at least the state information and maintenance information of the seal component. Based on the maintenance threshold set for the aforementioned status information, The display area is divided into predetermined proportions, and the transition state of the state information at predetermined timings is displayed. The first information display unit and the maintenance determined from the state information at the timing It comprises a second information display unit that displays information. The computer realizes a function of generating a status monitoring screen.

[0012] In the status monitoring program of the seal component, a function of generating the status monitoring screen in which display information including the color or pattern of the status information and the maintenance information is changed according to the transition state of the determination result of the seal component is included.

[0013] To achieve the above object, one aspect of the seal component status monitoring device of the present disclosure is a pressure information collecting means that communicates with a sensor device and collects pressure information in a space sealed by a seal component in a hydraulic device, and monitors the transition state of the pressure information, determines the state of the seal component, and based on this determination result, a processing unit that generates a status monitoring screen including at least the status information and maintenance information of the seal component The status monitoring screen displays the status information. In contrast, the display area is divided into predetermined proportions based on the set maintenance threshold, A first information display unit that shows the transition state of the state information at a fixed timing, and at the aforementioned timing It comprises a second information display unit that displays the maintenance information determined from the aforementioned state information. is provided. To achieve the above objective, one aspect of the seal component condition monitoring device of this disclosure is a sensor device Pressure information: Communicates with the device and collects pressure information in the space sealed by the sealing components within the hydraulic equipment. The collection means monitors the transition state of the pressure information and determines the state of the seal component. Furthermore, based on this determination result, at least the condition information and maintenance information of the seal part are obtained. The system includes a processing unit that generates a status monitoring screen including information, and the processing unit performs the following for the seal component When the maintenance process is performed, the status information of the seal part and the me The status monitoring screen is generated with the maintenance information restored to its set value.

[0014] In the seal component status monitoring device, the processing unit generates the status monitoring screen in which display information including the color or pattern of the status information and the maintenance information is changed according to the transition state of the determination result of the seal component 。

Advantages of the Invention

[0015] According to the configuration of the present disclosure, any of the following effects can be obtained.

[0016] (1) By using the transition state of the pressure value detected in the sealed area by the seal component to determine the state of the seal component and presenting the state information to the user, the reliability of the hydraulic device regarding the sealing function of the working fluid is enhanced. (2) It becomes easier to set a plan for the maintenance transition of the seal parts with respect to the usage history and work plan of the hydraulic equipment, enhancing convenience. (3) By presenting the replacement time of the seal parts, the critical time, and the period from the current state to the critical time, etc., it is possible to grasp them, enhancing convenience.

Brief Description of the Drawings

[0017] [Figure 1] It is a diagram showing a state monitoring system according to the first embodiment. [Figure 2] A is a partial cross-sectional view showing a part of the hydraulic equipment, and B is a diagram showing an example of the state determination of the seal parts based on the transition state of the pressure information. [Figure 3] It is a diagram showing an example of the monitoring processing database. [Figure 4] It is a diagram showing an example of the state monitoring screen. [Figure 5] It is a flowchart showing an example of the state monitoring process. [Figure 6] It is a diagram showing a state monitoring system according to the second embodiment. [Figure 7] It is a diagram showing an example of the equipment management screen. [Figure 8] It is a diagram showing an example of the execution screen of the management process. [Figure 9] It is a diagram showing an example of the equipment management screen after the maintenance process is executed. [Figure 10] It is a flowchart showing an example of the state monitoring process. [Figure 11] It is a diagram showing an example of the state monitoring screen according to Example 1. [Figure 12] It is a diagram showing an example of the state monitoring screen according to Example 2. [Figure 13] It is a diagram showing an example of the state monitoring screen according to Example 3. [Figure 14] It is a diagram showing an example of the state monitoring screen according to Example 4. [Figure 15] It is a diagram showing an example of the state monitoring screen according to Example 5. [Modes for carrying out the invention]

[0018] [First Embodiment] Figure 1 shows a condition monitoring system according to the first embodiment. The configuration shown in Figure 1 is an example, and the technology of this disclosure is not limited to such a configuration. The condition monitoring system 2 is an example of a system that monitors the sealing state and functional status of the sealing components 8 (seals 8a and 8b) placed on the hydraulic equipment 6, and presents the monitoring results to the user of the hydraulic equipment 6. This condition monitoring system 2 includes, for example, a condition monitoring device 4 and a hydraulic equipment 6, as shown in Figure 1.

[0019] The hydraulic device 6 is a mechanism that uses the pressure generated by flowing a fluid such as oil as a working fluid to move an actuator in a set direction, or an example of a device equipped with this mechanism. In other words, the hydraulic device 6 includes, for example, a hydraulic cylinder that extends and retracts a shaft 26 (Figure 2A) by hydraulic pressure, and is a device such as construction equipment that has multiple such hydraulic cylinders. The hydraulic device 6 houses, for example, the shaft 26, and has multiple chambers for flowing a working fluid (not shown) inside, and a sealed region 10 is formed between the fluid passage and the shaft 26, sealed by seals 8a and 8b. Furthermore, the hydraulic device 6 is equipped with a sensor 12 that detects the pressure within the sealed region 10.

[0020] Seals 8a and 8b are means to prevent working fluid from leaking outside the hydraulic device 6 and are located between the shaft 26 and the housing 24 (Figure 2A). Seal 8a is located, for example, along the direction of movement of the shaft 26, close to the flow path of the working fluid, i.e., on the inside of the housing 24. Seal 8b is located, for example, along the direction of movement of the shaft 26, on the outside of the housing 24, and blocks the working fluid that has passed through seal 8a. The sealing region 10 is an example of a region formed by seals 8a and 8b along the operating direction of the shaft 26. A small amount of working fluid, for example, to maintain the lubrication of the shaft 26, or a predetermined amount of working fluid due to a decrease in the sealing performance of seal 8a, flows into this sealing region 10.

[0021] Sensor 12 is an example of a means for detecting the pressure value within the sealing region 10. Working fluid flows into the sealing region 10 in response to the movement of the shaft 26, and a portion of the pressure required to operate the shaft 26 acts upon it. This pressure within the sealing region 10 also acts on the sealing seal 8b. Sensor 12 includes, for example, a means for measuring the pressure value within the sealing region 10, a data processing function for generating pressure information by processing the detected pressure value, and a communication function for transmitting the collected pressure information to the condition monitoring device 4.

[0022] The condition monitoring device 4 is an example of a means for determining the state of seals 8a and 8b using the pressure values ​​detected by the sensor 12, and generating a condition monitoring screen that includes information indicating the state and information necessary for maintenance. This condition monitoring device 4 is composed of, for example, a pressure information collection means 14 and a processing unit 16. The status monitoring device 4 is composed of a computer with communication capabilities, such as a PC (Personal Computer) or a server, and includes a processor for processing the collected information, a storage unit, a communication unit, an input / output unit (I / O), and other components. The processor performs calculations for the OS (Operating System) and status monitoring programs located in the memory unit, thereby realizing functions for determining the pressure state and generating status monitoring screens. The memory unit is an example of a recording medium equipped with memory elements such as ROM (Read-Only Memory) and RAM (Random-Access Memory). This memory unit stores, for example, an OS, a status monitoring program, and a monitoring processing database (DB) 30 (Figure 3) that stores detected pressure information. In addition, the memory unit may also store databases such as format data for status information and maintenance information that constitute the status monitoring screen. The communication unit is a functional unit that, for example, communicates with the sensor 12 to receive pressure information, and also transmits and receives information such as voice data and image data via wireless or wired connection to external databases, registered terminal devices 22, and other equipment. I / O is one example of a means of connecting to devices and display devices (not shown) under the control of the processor, displaying the generated status monitoring screen, and acquiring data necessary for status monitoring processing from external devices.

[0023] The pressure information acquisition means 14 is an example of a means for acquiring pressure information collected by the sensor 12, and data reception processing is performed using the communication unit in accordance with control instructions from the processor. Pressure information can be acquired by using wireless communication standards such as telephone lines, the internet, or LPWA (Low Power Wide Area) via wired or wireless connection to the sensor 12, or by using a private line used within the work area where the hydraulic equipment 6 is used, or by using short-range wireless communication lines such as Bluetooth® or infrared communication.

[0024] The processing unit 16 is an example of a processing function unit that includes a state determination unit 18 for determining the state of the seal component 8 and a screen generation unit 20 for generating a state monitoring screen. The state determination unit 18 is a functional unit that, for example, uses the pressure value included in the acquired pressure information and the transition state of that pressure value to determine the state of the sealing area 10, the sealing function of the seals 8a and 8b, and whether or not replacement is necessary. It also performs life prediction processing for the seals 8a and 8b based on continuously collected pressure information. The life of the seals 8a and 8b indicates, for example, the time when the sealing component will break, the number of operations, the timing to generate alert information to initiate maintenance, and other set conditions. The screen generation unit 20 is an example of a functional unit that generates a status monitoring screen using the status information of seals 8a and 8b determined by the status determination unit 18 and maintenance information set according to this status information. This maintenance information includes, for example, display information of characters, shapes, and colors that represent a normal state, replacement, or limit, depending on the determination result of the status of the sealing function by seals 8a and 8b.

[0025] <Regarding hydraulic equipment 6> As shown in Figure 2A, for example, the hydraulic device 6 has a cylindrical shaft 26 inserted into an opening 27 formed in the housing 24. This shaft 26 protrudes or retracts in the direction indicated by the arrow due to the pressure of the working fluid pumped by a pump or the like inside the housing 24. Seals 8a and 8b are placed in a part of the housing 24 that faces the opening 27 and is in contact with the circumferential surface of the shaft 26. The housing 24 also has a sealing region 10 formed in a part of the opening 27 between the seals 8a and 8b, and a sensor hole 28 whose one end communicates with the sealing region 10 and whose other end is connected to a sensor 12. This sensor hole 28 is an example of a storage section that stores the working fluid flowing through the surface of the shaft 26 and the working fluid that has passed through the seal 8a and reached the sealing region 10. The sensor 12 detects the pressure generated by the working fluid flowing into the sensor hole 28. The pressure value detected here is the pressure information acting on the sealing region 10 and the seal 8b. In addition, the housing 24 may be provided with a sealing component on the side of the opening 27 that faces the outside, to prevent foreign matter from entering from the outside.

[0026] <Regarding pressure information> The state monitoring process for the seal component 8 utilizes the transition state of pressure information, including the detected pressure value, the amount of change in that pressure value, and the trend of change. The pressure information includes, for example, pressure values ​​detected by the sensor 12 continuously over time or at set timings. For the determination process by the state determination unit 18, for example as shown in Figure 2B, the changes in pressure information such as the acquired pressure value over time are graphed and displayed. The state determination unit 18 determines the state of the seal component by, for example, comparing the acquired pressure information with a set predetermined threshold Px. In the determination process, for example, the state determination unit 18 determines whether the acquired pressure value is greater than or equal to the threshold Px, and if the number of values ​​greater than or equal to the threshold Px is less than a set value, it determines that the state of the seal component is "State I". This determination of "State I" represents, for example, a state in which the sealing function of the seal 8a is fully performed.

[0027] Furthermore, the state determination unit 18 determines that the state of the seal component is "State II" when, for example, the number of values ​​exceeding the threshold Px exceeds a set value. This determination of "State II" means, for example, that seal a is broken or its sealing function has deteriorated, and that the working fluid has been stored in the sealing region 10 due to the sealing function of seal 8b. The state determination unit 18 then determines "State II" within a range of the number of detected values ​​in which the sealing function of seal 8b can be performed. In addition, the state determination unit 18 monitors the pressure value and its transition state in state II, and when a predetermined condition is reached, it determines that the sealing function has deteriorated, for example, due to the rupture of seal 8b, as state III. Then, the processing unit 16 can generate instruction information such as "normal," "replace," or "limit" as maintenance information for seals 8a and 8b, based on the determination result of the state determination unit 18. In other words, this determination process predicts the lifespan of the seal components, including when they should be replaced, based on the results of monitoring the sealing state by the seal components.

[0028] <About the monitoring process DB30> This monitoring processing DB30 stores pressure information detected by the sensor 12, as well as information identifying the hydraulic equipment 6 and seal components 8, and status information of the determined seal components. The monitoring processing DB 30 includes, for example, a device name section 31, a location information section 32, a date section 33, an identification information section 34, a placement location information section 35, a sealing area section 36, a pressure value section 37, a determination result section 38, a maintenance instruction section 39, a maintenance history section 40, and so on, as shown in Figure 3. Furthermore, the monitoring processing DB 30 is not limited to including all of these information sections, but may consist of only some of them.

[0029] The equipment name section 31 is an example of an area that stores a name or other information that identifies the hydraulic equipment 6, or the work device on which the hydraulic equipment 6 is installed. The location information unit 32 is an example of an area that stores location information for identifying the placement location of hydraulic equipment 6 or work devices registered in the equipment name unit 31. This location information includes, for example, coordinate information such as latitude and longitude, as well as information used within the work site, such as a plant, where the hydraulic equipment 6 is used. The date section 33 contains information representing the date, such as the timing of the execution of the status monitoring process, and may also include time information. More specifically, the date section 33 may include, for example, the timing of the detection of the pressure value by the sensor 12, or the generation of pressure information, or the timing when the status monitoring device 4 collected the pressure information from the sensor 12.

[0030] The identification information unit 34 is an example of information that identifies the seal component 8, and registers the identification number, type, model number, etc., that are set for each of the seals 8a and 8b mounted on the hydraulic equipment 6. The placement location information unit 35 is an example of information indicating the placement location of a seal component, and includes information that allows for the identification of the placement location, such as the placement coordinates of a seal component that can be identified using GPS or the like. The sealing area section 36 may store information that allows the sealing area 10 within the hydraulic device 6, which is sealed by seals 8a and 8b, to be perceived from the outside, as well as information such as the size and width of the sealing area 10 and its volume including the sensor hole 28.

[0031] The pressure value section 37 is a region that stores data such as the pressure value acquired from the sensor 12 and its transition state. The determination result unit 38 is an area where the results of the state determination process performed using pressure information are stored. This determination result unit 38 stores, for example, the determination result based on the comparison between the magnitude of the pressure value and the threshold, as well as the currently set state information. The maintenance instruction unit 39 is an example of an area where maintenance instruction information set for the seal component 8 based on the result of the status determination is stored. The maintenance history section 40 is an area that stores historical information including information indicating that replacement instructions such as "replace" or "limit" have been issued for the seal component 8, and information that maintenance processes such as replacement work have been performed on the seal component.

[0032] <About the status monitoring screen> Figure 4 shows a status monitoring screen. The configuration shown in Figure 4 is an example, and the technology of this disclosure is not limited to such a configuration. The status monitoring screens 50 (50A, 50B, 50C) are configured to include maintenance information such as instructions for users who use or manage the hydraulic equipment 6, along with status information of the seal components. The status monitoring screen 50A includes, for example, a status information display unit 52 represented by a semicircular or nearly semicircular curved bar graph as the first information display unit, and a maintenance instruction display unit 54 representing maintenance information as the second information display unit, as shown in Figure 4A. The status information display unit 52 has three display areas formed by bar graphs of predetermined sizes, corresponding to, for example, three judgment results issued in the judgment process. Of these, display area 52-I is the area that shows the judgment result of "Status I: Normal" when the sealing function of the seal components is fully performed. Display area 52-II is the area that shows the judgment result of "Status II: Replace" which is determined when the working fluid has passed through the seal 8a and is sealed by the seal 8b, and working fluid has accumulated in the sealing area 10 and the sensor hole 28. Display area 52-III is an example of an area that shows the "State III: Limit" judgment result when the working fluid permeates the seal 8b.

[0033] In addition, the status monitoring screen 50 includes a gauge display unit 56 that indicates which display area 52-I, 52-II, or 52-III the judgment result is showing, and an alert display unit 58 that displays maintenance instruction information currently or previously issued to the user.

[0034] In the status monitoring process, for example, as shown in Figure 4A, if the sealing component is determined to be in a normal state, a status monitoring screen 50A is generated in which the gauge display unit 56 points to the area within the display region 52-I. At this time, the maintenance instruction display unit 54 should display the word "Normal," for example, indicating that the sealing function of the seal 8a is being fully performed.

[0035] Furthermore, in the status monitoring process when the operating time of the hydraulic equipment 6 has elapsed, for example as shown in Figure 4B, if the working fluid passes through and reaches the sensor hole 28 due to deterioration or damage of the seal 8a, and it is determined that "replacement" is required, a status monitoring screen 50B is generated in which the gauge display unit 56 points to the area of ​​display region 52-II.

[0036] Furthermore, in the condition monitoring process when the operating time of the hydraulic equipment 6 has elapsed, for example as shown in Figure 4C, if the working fluid passes through the seal 8b due to deterioration or damage of the seal 8b and leaks out to the outside of the housing 24, or is in a state close to that, and it is determined that the "limit" has been reached, that is, the limit condition, a condition monitoring screen 50C is generated in which the gauge display unit 56 points to the area within the display area 52-III.

[0037] The status monitoring screen 50 switches the display direction of the gauge display unit 56 in response to a change in the judgment result, for example, from "Status I" to "Status II," or from "Status II" to "Status III." The status monitoring screen 50 also switches the display direction of the gauge display unit 56 according to the number of judgments, even if the same judgment result is issued. The screen generation unit 20 generates a status monitoring screen 50 in which, for example, if the judgment result of "Status I" continues, the position pointed to by the gauge display unit 56 is switched to the right according to the number of judgments. The number of judgments can be, for example, the number of judgment results registered in the monitoring processing DB 30. The gauge display unit 56 may also shift its display position based on, for example, the number of pressure information detected.

[0038] In addition, each display area 52-I, 52-II, and 52-III has a threshold value set to shift the display position of the gauge display unit 56 in relation to the number of judgment counts. Specifically, a threshold value should be set to shift the position by one division each time the number of judgment counts or the number of pressure information points reaches, for example, 100 or 1000.

[0039] <About status monitoring processing> Figure 5 shows an example of a state monitoring process. The process shown in Figure 5 is an example of a state monitoring method and a state monitoring program of the present disclosure, and the technology of the present disclosure is not limited to such processing procedures or processing content. In this state monitoring process, the pressure information collection means 14 acquires pressure information of the sealing area 10 of the hydraulic device 6 from the sensor 12 (S101). This acquisition of pressure information may be done, for example, by the pressure information collection means 14 accessing the sensor 12 and taking in the pressure information, or the sensor 12 may transmit the pressure information continuously or periodically. When the state monitoring device 4 stores the acquired pressure information in the monitoring processing DB 30 in the storage unit (S102), it executes a state determination process (S103) such as the sealing function by the seal component 8. The state determination process includes, for example, using the pressure value and its transition state included in the pressure information to check the state of the seals 8a and 8b and calculate a predicted lifespan.

[0040] Furthermore, the status determination unit 18 generates status information for the seal components and maintenance information corresponding to this status information based on the status determination results for the seals 8a and 8b (S104). In the maintenance information generation process, for example, information on currently set maintenance instructions and maintenance history information stored in the monitoring process DB 30 can be used.

[0041] The screen generation unit 20 generates a status monitoring screen 50 by combining the generated judgment results, status information, and maintenance information (S105). At this time, the screen generation unit 20 may, for example, read format information registered in a database (not shown) and apply the judgment results, status information, and maintenance information to it to generate the status monitoring screen 50. The processing unit 16 then displays the generated status monitoring screen 50 on the display unit of the status monitoring device 4, and also notifies the terminal device 22 of the user registered as the administrator of the hydraulic equipment 6 of the display of the status monitoring screen 50 and information indicating that the screen has been generated (S106).

[0042] <Effects of the First Embodiment> With this configuration, the following effects can be obtained. (1) By presenting the user with the results of the determination of the state of the sealing area 10 and the state of the seals 8a and 8b, the reliability of the sealing component 8 and the hydraulic device 6 can be maintained. (2) Based on the pressure information detected in the sealing region 10, the condition of seals 8a and 8b and their predicted lifespans are calculated, and maintenance information set using this information is presented to the user, thereby increasing the reliability of the hydraulic equipment 6 and making it easier for the user to understand when and what maintenance should be performed, thus improving convenience. (3) The maintenance transition schedule for seals 8a and 8b can be easily planned in relation to the usage history and work plan of the hydraulic equipment 6, thereby improving convenience. (4) Convenience can be enhanced by clearly displaying the replacement time and limit time for seals 8a and 8b, as well as the period from the current state to the limit time.

[0043] [Second Embodiment] Figure 6 shows a condition monitoring system according to a second embodiment. The configuration shown in Figure 6 is an example, and the technology of this disclosure is not limited to such a configuration. This status monitoring system 60 illustrates a case where, for example, multiple hydraulic devices 6-1, 6-2, 6-3, ... 6-N are used within a set work area, and status monitoring processing is performed for these devices. In the status monitoring system 60, as shown in Figure 6, for example, a device 62 including multiple hydraulic devices 6-1, 6-2, 6-3, ... 6-N is assigned to the status monitoring device 4, and the detected pressure information and device information for identifying the hydraulic devices 6-1, 6-2, 6-3, ... 6-N are transmitted. This status monitoring device 4 includes a storage unit 64 that stores pressure information collected from, for example, the hydraulic devices 6-1, 6-2, 6-3, ... 6-N, as well as the status determination results and status monitoring screens for each device.

[0044] The status monitoring device 4 then performs the following processes: determining the sealing state by the sealing component 8 for each hydraulic device 6-1, 6-2, 6-3, ... 6-N, and generating status information, maintenance information, and a status monitoring screen. Such determination processing and status monitoring screen generation processing can be performed in the same way as in the first embodiment, and a detailed explanation of the processing content will be omitted.

[0045] Furthermore, the condition monitoring system 60 is not limited to the case where, for example, all hydraulic equipment 6-1, 6-2, 6-3, ... 6-N are assigned to a single condition monitoring device 4. The condition monitoring system 60 may, for example, divide the hydraulic equipment 6-1, 6-2, 6-3, ... 6-N from the equipment 62 by working machine or by placement location, and provide multiple condition monitoring devices 4 corresponding to these divisions. These multiple condition monitoring devices 4 may, for example, independently perform condition determination processing and generate condition monitoring screens, or a management terminal (not shown) or one of the condition monitoring devices 4 may act as the main control, controlling the processing timing of the other condition monitoring devices 4. This allows for adjustments according to the application, such as quickly notifying the condition monitoring screen only when an urgent alert is needed, for example, when a seal component is approaching its limit, or simultaneously understanding the status of all hydraulic equipment 6-1, 6-2, 6-3, ... 6-N at a set timing.

[0046] <About the equipment management screen> Figure 7 shows an example of the configuration of the equipment management screen. Equipment management screen 70 is an example of a management screen for monitoring the status and performing maintenance on hydraulic equipment 6-1, 6-2, 6-3, ... 6-N(6). This equipment management screen 70 includes, for example, status monitoring screens 72-1, 72-2, ...72-N(72) for multiple hydraulic equipment 6 to which status management has been assigned, an alert information display unit 73, and an update history display unit 74, as shown in Figure 7. In addition, the equipment management screen 70 displays, for example, a login display unit 76 that shows the authentication status of a user with equipment management authority.

[0047] Status monitoring screens 72-1, 72-2, ...72-N are generated using pressure information linked to equipment information and are displayed in a designated location on the equipment management screen 70 along with this equipment information. The equipment management screen 70 is not limited to displaying all status monitoring screens 72-1, 72-2...72-N in a list; for example, it may display a list of equipment information, and the user can select specific equipment information to transition to the status monitoring screen for each linked equipment 62.

[0048] The alert information display unit 73 is an example of an area that displays information such as the content and date and time when, for example, a status monitoring screen 72 is generated when maintenance information reaches a "replacement" or "limit" level, or when a set condition such as replacement information for seal parts 8 is reached. The status monitoring device 4 may, for example, notify registered terminal devices 22 of the alert information when information is displayed in the alert information display unit 73.

[0049] The update history display unit 74 is an example of an area that displays the details of the processing and the date and time, along with the equipment information, for example, when maintenance processing is performed or when other work is done on the hydraulic equipment 6.

[0050] <Regarding the execution of maintenance> Figure 8 shows an example of the execution screen for the management process. The equipment management screen 70 includes an input record screen 80-1 for managing the details of maintenance performed, such as replacing the seal parts 8 of the hydraulic equipment 6, as shown in Figure 8A. This input record screen 80-1 is linked to the registered contents of the monitoring process DB 30 (Figure 3), and includes a list record section 82 for equipment such as the name of the equipment containing the hydraulic equipment 6, hydraulic equipment 6-1, 6-2, ... A user with management authority operates the terminal device 22 when performing or after performing maintenance, such as replacing seals 8a and 8b, confirms the corresponding information from the list record section 82, and selects the input display icon 86. As a result, the user's terminal device 22 displays, for example, an individual input record screen 80-2 (Figure 8B).

[0051] The input record screen 80-2 includes, for example, a specific information section 88, such as the name of the equipment selected by the user, and a maintenance processing information section 90, as shown in Figure 8B. This maintenance processing information section 90 consists of input areas for the details of the maintenance performed, such as "equipment replacement," "gasket replacement," and "other," as well as an input section 92 for the date the maintenance was performed and a selection section 94 for when the input is complete.

[0052] In the status monitoring device 4, for example, once input to the input recording screen 80-2 is completed, the entered information is reflected in the management screen 100 (Figure 9) for each piece of equipment on which maintenance processing was performed. This management screen 100 includes, for example as shown in Figure 9, an equipment name display unit 102 that displays specific information such as the hydraulic equipment 6, a status monitoring screen 104 updated by the maintenance processing, and an update history display unit 106 that adds the details of the maintenance processing.

[0053] <About status monitoring processing> Figure 10 shows an example of a state monitoring process. The process shown in Figure 10 is an example of a state monitoring method and a state monitoring program of this disclosure, and the technology of this disclosure is not limited to such processing procedures or processing content. In addition, in Figure 10, the explanation of processing content equivalent to that in Figure 5 is omitted.

[0054] In this status monitoring process, after initializing the sensors 12 installed on the hydraulic equipment 6-1, 6-2, 6-3, ... 6-N to be monitored, and the server which is the status monitoring device 4 (S201), the status monitoring device 4 acquires pressure information along with equipment information and identification information of the seal component 8 (S202). The condition monitoring device 4 registers the acquired pressure information, etc., in the monitoring process DB 30 (S203) and performs a condition determination process for the seal component 8 (S204). The pressure information is registered in the monitoring process DB 30, for example, linked to equipment information or identification information of the seal component 8. In the condition determination process, for example, the determination process may be performed on the registered hydraulic equipment 6-1, 6-2, 6-3, ... 6-N according to a set order or time interval, and the determination result may be registered in the monitoring process DB 30, or the determination process may be executed in an order set by the user, who is the administrator. Furthermore, this condition determination process is not limited to being performed on all registered hydraulic equipment 6-1, 6-2, 6-3, ... 6-N, but may be performed only on those extracted based on selection input by the user or selection conditions not shown. These selection conditions may be set, for example, when the currently set maintenance information is "replace" or "limit," or when the determination process has not been performed for a predetermined period of time.

[0055] The status determination unit 18 compares the result of the determination process with the previous or earlier determination results registered in the monitoring process DB 30, etc., to determine whether there has been a change in the status information or maintenance information of the seal part 8 (S205). This change determination assumes, for example, a situation where the detected pressure value has increased or decreased rapidly, or where the maintenance information has changed from "replace" to "limit". If such changes occur (YES in S205), the processing unit 16 generates alert information (S206), generates a status monitoring screen 72 (S207), and then notifies the registered terminal device 22 of the alert information along with the status monitoring screen 72 (S208). If there are no changes to the information (NO in S205), the process proceeds to generating the status monitoring screen 72 (S207), and then notifies the terminal device 22 of the status monitoring screen 72 (S208). Furthermore, if alert information is generated, for example, the status monitoring device 4 may send the alert information to the terminal device 22 before generating or sending the status monitoring screen 72.

[0056] Then, after notifying the status monitoring screen 72, the status monitoring device 4 should identify the next detection target, the hydraulic equipment 6-1, 6-2, 6-3, ..., 6-N (S209), and proceed to the pressure information collection process (S202).

[0057] <Effects of the second embodiment> With this configuration, one of the following effects can be expected: (1) The same effects as in the first embodiment can be obtained. (2) For multiple hydraulic devices 6-1, 6-2, 6-3, ... 6-N, pressure information is collected in association with the device identification information and registered in the monitoring processing DB30, thereby simplifying the management process for a large number of devices. (3) By acquiring maintenance information for a large number of hydraulic devices 6-1, 6-2, 6-3, ..., 6-N and performing simultaneous or approximate maintenance processing, it becomes easier to identify the targets for maintenance monitoring, and the planning of work procedures and other aspects of the maintenance process is improved.

[0058] [Example 1] Figure 11 shows an example of the status monitoring screen shown in Example 1. The status monitoring screen 110A shown in this embodiment 1, for example as shown in Figure 11A, is a hollow semicircular shape, or half of a so-called donut shape, and displays a predetermined percentage of status information in a display area 112 that represents status information based on the status determination result, based on the detected pressure value, the number of fluctuations, and the life prediction result. The status monitoring screen 110A also includes, for example, an alert information display unit 114 and a maintenance instruction display unit 116. Furthermore, the status monitoring screen 110B shows the state when the status determination process has progressed and the maintenance information has moved to the "replacement" stage, which is "maintenance recommended," as shown in Figure 11B, for example. In this status monitoring screen 110B, the display area 112 showing the status information grows larger as the determination process progresses. Also, in this display area 112, for example, the colors and patterns are displayed larger and darker in the status monitoring screen 110B compared to the status monitoring screen 110A.

[0059] The alert information display unit 114 may display words such as "normal," "replace," or "limit" as maintenance information set based on the judgment result. The maintenance instruction display unit 116 may, for example, display a value or word set according to the judgment result, or it may set a maximum value of 100% for each piece of maintenance information and increase the value according to the current number of judgments or the number of times the pressure value has been detected. When the next piece of maintenance information is selected or when the seal part 8 of the hydraulic equipment 6 is replaced, the displayed value may be changed to "0".

[0060] The status monitoring screen 110C, as shown in Figure 11C for example, indicates the state when the status determination process has progressed and the maintenance information has reached the "limit" stage. In this status monitoring screen 110C, the display area 112 showing the status information enlarges as the determination process progresses. Furthermore, this display area 112 is displayed with larger and darker colors and patterns in the status monitoring screen 110C compared to the status monitoring screens 110A and 110B.

[0061] [Example 2] Figure 12 shows an example of the status monitoring screen shown in Example 2. The status monitoring screen 120A shown in this embodiment 2, for example as shown in Figure 12A, is a hollow semicircular shape, half the shape of a so-called donut shape, and consists of a status information display unit 52, which is a display area that displays status information based on the status determination result, and a gauge display unit 56. In this status monitoring screen 120A, for example, the gauge display unit 56 is fixed upward or in another set direction, and the status information display unit 52 rotates, for example to the left, based on the detected pressure value, the number of fluctuations, and the determination result based on the life prediction result, thereby indicating the current state of the seal component. This status monitoring screen 120A shows, for example, the "normal" state.

[0062] The status monitoring screen 120B then shows, for example, the state determination process has progressed and the maintenance information has moved to the "replace" stage, as shown in Figure 12B. At this time, the status monitoring screen 120B rotates the status information display unit 52 to the left in accordance with the progress of the determination process, and the gauge display unit 56 has reached the position that indicates the display area 52-II. Furthermore, the status monitoring screen 120C, as shown in Figure 12C for example, indicates the state when the status determination process has progressed and the maintenance information has reached the "limit" stage. At this time, the status monitoring screen 120C rotates the status information display unit 52 further to the left in accordance with the progress of the determination process, until the gauge display unit 56 reaches the position indicating the display area 52-III.

[0063] On these status monitoring screens 120A, 120B, and 120C, maintenance information corresponding to the display areas 52-I, 52-II, and 52-III indicated by the gauge display unit 56 is displayed on the maintenance instruction display unit 54.

[0064] [Example 3] Figure 13 shows an example of the status monitoring screen shown in Example 3. The status monitoring screen 130 (130A, 130B, 130C) shown in Example 3 has a hollow, semicircular display area 132, as shown in Figure 13A, for example. This display area 132 displays status information of the seal component 8 generated based on the status determination result, and is divided into predetermined sizes according to the status information. In addition, the status monitoring screen 130 includes a maintenance instruction display unit 134 that is set according to the status determination result.

[0065] The status monitoring screen 130A is an example of how it is displayed when the status determination is "normal," and only the display area 132-I representing the "normal" status set on the left side is displayed, or this display area 132-I is lit up to show it. Furthermore, the status monitoring screen 130B is an example of a status display when the judgment process has progressed and the judgment result is "replace," as shown in Figure 13B, for example. In this status monitoring screen 130B, for example, only the display area 132-II, which is divided to the right of the display area 132-I, is displayed, or is explicitly displayed by lighting it up. Furthermore, the status monitoring screen 130C is an example of a status display when the judgment result is "limit," as shown in Figure 13C. In this status monitoring screen 130C, for example, only the display area 132-III, which is divided to the right of the display area 132-II, is displayed, or is explicitly displayed by lighting it up.

[0066] Furthermore, maintenance information corresponding to the status information shown in display areas 132-I, 132-II, and 132-III is displayed on the maintenance instruction display unit 134 in these status monitoring screens 130A, 130B, and 130C.

[0067] [Example 4] Figure 14 shows an example of the status monitoring screen shown in Example 4. The status monitoring screen 140 (140A, 140B, 140C) shown in Example 4 consists of a semicircular status information display unit 52 and a gauge display unit 142 that changes the direction of indication according to the judgment result, similar to the embodiment described above. In this status monitoring screen 140, for example, the color and pattern of the display screen of the gauge display unit 142 are changed in conjunction with the status information based on the judgment result, according to the display areas 52-I, 52-II, and 52-III, which have the colors and patterns of the display screen set.

[0068] In other words, on the status monitoring screen 140A, for example as shown in Figure 14A, the gauge display unit 142 is directed towards the display area 52-I, which is a single color and has no pattern, based on the determination result of the "normal" state. At this time, the gauge display unit 142 displays an arrow indicating a display state that is the same color as the status information display area 52-I and has no pattern. Furthermore, in the status monitoring screen 140B, for example as shown in Figure 14B, the gauge display unit 142 is directed towards the status information display area 52-II, which is represented by a dot pattern, based on the determination result of the "replace" status. At this time, the gauge display unit 142 displays an arrow represented by the same pattern as the status information display area 52-II. Furthermore, on the status monitoring screen 140C, for example as shown in Figure 14C, the gauge display unit 142 is directed towards the status information display area 52-III, which is decorated with a grid pattern, based on the determination result of the "limit" state. At this time, the gauge display unit 142 displays an arrow represented by the same pattern as the status information display area 52-III.

[0069] Note that the colors and patterns shown in this Example 4 are just examples.

[0070] [Example 5] Figure 15 shows an example of the status monitoring screen shown in Example 5. The status monitoring screen 150 shown in Example 5, for example as shown in Figure 15, is composed of a horizontally elongated, strip-shaped display area 152, which is divided into three sections of predetermined length from the left, to display status information of the seal component 8 based on the status determination result. The status monitoring screen 150 also includes a gauge display unit 154 for indicating the status information based on the status determination result to the divided display area 152. The display position of this gauge display unit 154 can be changed, for example, left or right along the display area 152, and the display position is set according to the status determination result. In other words, if the screen generation unit 20 determines that the state is "normal", for example, it will cause the gauge display unit 154 to point to the first display area 152-I on the left. If the screen generation unit 20 determines that the state is "replacement", for example, it will cause the gauge display unit 154 to point to the second display area 152-II divided in the center. Furthermore, if the screen generation unit 20 determines that the state is "limit", for example, it will cause the gauge display unit 154 to point to the third display area 152-III divided on the right.

[0071] In addition, the status monitoring screen 150 includes a maintenance instruction display unit 156 that displays the set maintenance information in each of the divided display areas 152.

[0072] By using the status monitoring screens shown in Examples 1 to 5, the same effects as those of the first and second embodiments can be obtained. [Variation]

[0073] The features and variations of the embodiments described above are listed below.

[0074] (1) In the above embodiment, a status monitoring screen for displaying status information and maintenance information of the seal component 8 was shown to be generated by using a graph display that divides a predetermined area into predetermined areas and lengths, and by moving or changing the orientation of the gauge display unit 56 or the status information display unit 52 in accordance with the transition of pressure information. However, the technology of this disclosure is not limited to such a screen display. The status monitoring screen 50 may, for example, display transition information that represents the number of times or period until the next judgment result or alert display, etc., is to be performed, instead of, or together with, the status information of the seal component. This transition information can be calculated, for example, by using information collected in past status monitoring processes to calculate information such as elapsed time, usage time of the hydraulic equipment 6, and number of uses. Such transition information can be calculated, for example, from detected pressure information, threshold information, and trend information that represents the frequency of use of the hydraulic equipment 6 at predetermined intervals.

[0075] (2) In the above embodiment, the state determination unit 18 uses a threshold value Px as the state determination process for the seal component and determines "State I", "State II", etc. by comparing it with the acquired pressure information, but is not limited to this. The state determination unit 18 may set a plurality of threshold values ​​Px, Py, etc. with different values ​​depending on the state to be set for the sealing function of the seal component, for example, and perform the state determination process. As a specific example, the state determination unit 18 may determine that the state when the pressure value is less than threshold value Px, and the state when the pressure value is greater than or equal to threshold value Px and less than threshold value Py is "State I", and the state when the pressure value is greater than or equal to threshold value Py and less than threshold value Pz is "State II". Furthermore, the state determination unit 18 may set more finely divided thresholds. With this configuration, by subdividing and determining the state of the acquired pressure value, it is possible to predict in detail the state of the sealing component and the state of the sealing region 10 formed by the sealing component.

[0076] By displaying such transition information, for example, it becomes easy to estimate the time period and number of uses required for a hydraulic device 6 that has been judged as "normal" to transition to a judgment result of "replacement" or "limit," thereby improving convenience.

[0077] As described above, the most preferred embodiments of the technology of this disclosure have been explained. The technology of this disclosure is not limited to the above description. Various modifications and changes are possible for those skilled in the art based on the gist of the claims or the embodiments disclosed for carrying out the invention. It goes without saying that such modifications and changes are within the scope of the technology of this disclosure. [Explanation of Symbols]

[0078] 2.60 Status Monitoring System 4. Status monitoring device 6, 6-1, 6-2, 6-3 Hydraulic equipment 8 sealing parts 8a, 8b seals 10 Sealing area 12 sensors 14. Pressure information collection means 16 Processing Unit 18 State determination unit 20 Screen generation section 22 Terminal devices 24 cabinets 26 shafts 27 Opening 28 sensor holes 30 Monitoring Processing DB 31 Device name section 32 Location Information Department Section dated 33 34 Identification Information Section 35 Location information section 36 Sealing area 37 Pressure Value Section 38 Judgment result section 39 Maintenance Instruction Section 40 Maintenance History Section 50, 50A, 50B, 50C, 72, 72-1, 72-2...72-N, 110, 110A, 110B, 110C, 120, 120A, 120B, 120C, 130, 130A, 130B, 130C, 140, 140A, 140B, 140C, 150 Status monitoring screen 52 Status Information Display Unit 52-I, 52-II, 52-III, 132, 132-I, 132-II, 132-III, 152-I, 152-II, 152-III display area 54, 116, 134 Maintenance instruction display section 56, 142, 154 Gauge display section 58 Alert display section 62 Equipment 64 Memory section 70 Equipment management screen 73 Alert Information Display Unit 74 Update History Display Section 76 Login display section 80-1, 80-2 Input Record Screen 82 List Record Section 86 Input display icon 88 Specific Information Department 90 Maintenance Processing Information Department 92 Input section for the maintenance date 94 Input completion selection section 100 Management screen 102 Equipment name display section 104 Status Monitoring Screen 106 Update History Display Section 112 Display area 114 Alert Information Display Unit

Claims

1. A process for acquiring pressure information within a sealed area sealed by a sealing component in a hydraulic device, A step of monitoring the transition state of the pressure information and determining the state of the sealing component, A step of generating a status monitoring screen based on the determination result, comprising: a first information display unit that displays the transition state of the status information at a predetermined timing, and a second information display unit that displays the maintenance information determined from the status information at the aforementioned timing, wherein the display area is divided into predetermined proportions based on a maintenance threshold set for the status information, and the first information display unit displays the transition state of the status information at a predetermined timing, and the second information display unit displays the maintenance information determined from the status information at the aforementioned timing, A method for monitoring the condition of a sealing component, characterized by including the following:

2. The method for monitoring the state of a seal component according to claim 1, which includes the step of generating a state monitoring screen that changes display information including a color or pattern representing the state information and the maintenance information, according to the transition state of the determination result of the seal component.

3. A step of acquiring maintenance processing information performed on the aforementioned seal component, The method for monitoring the condition of a seal component according to claim 1 or 2, which includes and displays the acquired maintenance processing information on the condition monitoring screen.

4. A process of generating alert information when the aforementioned status information reaches a set state, The process includes sending the generated alert information and status monitoring screen to a registered terminal device, A method for monitoring the condition of a sealing component according to claim 1 or 2, including the following:

5. A step of acquiring identification information and placement position information set for the seal component, A step of storing the detected pressure information and the arrangement position information of the seal component in a storage unit in association with the identification information, The method for monitoring the status of a seal component according to claim 1 or 2, wherein the status monitoring screen displays the placement position information, status information, and maintenance information of the seal component in association with the identification information.

6. A program implemented by a computer, A function to acquire pressure information within a sealed area sealed by a sealing component in a hydraulic device, A function to monitor the transition state of the pressure information and determine the state of the sealing component, Based on the determination result, a function is provided to generate a status monitoring screen comprising: a first information display unit that shows the transition state of the status information at a predetermined timing, and a second information display unit that shows the maintenance information determined from the status information at the aforementioned timing, wherein the display area is divided into predetermined proportions based on a maintenance threshold set for the status information, and the display area is divided into predetermined proportions based on the status information, and the first information display unit shows the transition state of the status information at a predetermined timing, and the second information display unit shows the maintenance information determined from the status information at the aforementioned timing, A program for monitoring the condition of a sealing component, which is implemented by the aforementioned computer.

7. The seal component status monitoring program according to claim 6, which includes a function to generate a status monitoring screen that changes display information including the color or pattern of the status information and the maintenance information according to the transition state of the determination result of the seal component.

8. A pressure information acquisition means that communicates with a sensor device and collects pressure information in the space sealed by a sealing component within a hydraulic device, A processing unit monitors the transition state of the pressure information, determines the state of the seal component, and generates a state monitoring screen that includes at least the state information of the seal component and maintenance information based on this determination result. Equipped with, The aforementioned status monitoring screen is, Based on the maintenance threshold set for the status information, the display area is divided into predetermined proportions, and a first information display unit represents the transition state of the status information at a predetermined timing, A seal component condition monitoring device characterized by comprising: a second information display unit that displays the maintenance information determined from the condition information at the aforementioned timing; and a second information display unit that displays the maintenance information determined from the condition information at the aforementioned timing.

9. The seal component status monitoring device according to claim 8, characterized in that the processing unit generates a status monitoring screen that changes the display information including the color or pattern of the status information and the maintenance information according to the transition state of the determination result of the seal component.

10. A pressure information acquisition means that communicates with a sensor device and collects pressure information in a space sealed by a sealing component in a hydraulic device, A processing unit monitors the transition state of the pressure information, determines the state of the seal component, and generates a state monitoring screen that includes at least the state information of the seal component and maintenance information based on this determination result. Equipped with, The seal component status monitoring device is characterized in that, when maintenance processing is performed on the seal component, the processing unit generates a status monitoring screen in which the status information and maintenance information of the seal component are returned to set values.

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