JPH02267683A - Maintenance time informing device - Google Patents

Abstract

PURPOSE:To improve maintenance efficiency by applying maintenance appropriately by setting variable time to the next maintenance based on the difference of accumulated number of times of use considering the number of times of use, the actual accumulated number of times of use, and accumulated operating time, and informing maintenance time obtained actually. CONSTITUTION:A ratio of the actual number of times of use of a service life set in advance to the actual accumulated number of times of use of a machine 2 to be maintained is found by an informing means 1A, and a data table set in advance is referred, and the interval of the operating time of the machine 2 on which the maintenance is applied at required time is found. And the time to apply the maintenance obtained actually is judged based on the accumulated operating time of the machine 2 measured separately from the interval of the operating time, and it is informed and outputted to a data output device 3. In such a way, it is possible to prevent maintenance expense occurring wastefully at the initial stage of the service life and to prevent the service life from being shortened due to insufficient maintenance at the final stage of the service life.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a device that monitors the operating state of a device to be maintained (hereinafter also referred to as a machine) and notifies the appropriate time to maintain the device.

[Conventional technology]

FIG. 1 is a system configuration diagram as an embodiment of the present invention, and this diagram will be used below, and the conventional technology will be explained using FIG. 3. It should be noted that conventionally, the maintenance time notification means 18 shown in FIG. 1 is not provided. In FIG. 1, 1 is an operation monitoring device such as a data logger, and 2 is an upper part. Equipment to be maintained (machine) such as sewer pumps, 3
is a data output device such as a CRT or printer. The operation monitoring device 1 monitors the operating state of the device to be maintained 2 via a transmission path for information collection, and monitors, for example, the startup time and stop time of the device to be maintained 2. Operation data such as (cumulative) operating hours, (cumulative) number of uses,
Alternatively, the daily report, monthly report, yearly report, etc. are outputted to the data output device 3. Normally, the machine 2 has a predetermined operating time interval for its maintenance, so the operator can check the predetermined operating time interval and the actual cumulative operating time of the machine 2 output from the data output device 3. You can find out when it is time for maintenance by comparing the Figure 3 shows the conventional relationship between the cumulative operating time of Machine 2 (upper data) when maintenance was performed on Machine 2 and the cumulative number of times Machine 2 was used at that time (lower data). An example is shown below. In this example, the maintenance period (interval) is set once every 2000 hours of operation time. Therefore, for example, the value obtained by subtracting the first maintenance value from the second maintenance value becomes the operating time and number of uses between the first maintenance and the second maintenance. As shown in Fig. 3, the operating time of the maintenance target device 2 from one maintenance to the next maintenance is 2000 hours in total, but the number of times it is used during this period is 1000 times for the first time, 4000 times for the second time, 3000 times for the second time, and 3000 times for the second time. 500th time,
The fourth time is 1500 times, and the fifth time is 3000 times, so there is no regularity and the number of uses is not taken into consideration.

[Question B that the invention attempts to solve]

As mentioned above, in the past, the maintenance period for Machine 2 was determined based only on its operating hours, so if the operating hours are the same, a machine that has been used thousands of times and a machine that has been used tens of times are different. were being maintained at the same time. However, the closer a machine gets to the end of its service life, the more likely it will break down. Therefore, instead of incurring unnecessary maintenance costs due to unnecessary maintenance being performed at the beginning of the life when maintenance is not required frequently,
There has been a problem that at the end of the machine's life, when the frequency of maintenance increases, there is insufficient maintenance, which shortens the life of the machine. Therefore, the present invention compares the number of uses that will reach the end of the machine's life with the actual number of uses, and shortens the operating time interval until the next maintenance based on how close the actual number of uses is to the number of uses that will reach the end of the machine's life. It is an object of the present invention to solve the above-mentioned problems by providing a maintenance time notification device that measures the actual cumulative operating time and reports the maintenance time that has actually arrived.

[Means to solve the problem]

In order to solve the above-mentioned problems, the device of the present invention includes a means for monitoring the ratio between the cumulative number of times a maintenance target device (such as 2) is used and the number of times the device is used over a predetermined lifespan; means for determining, based on a predetermined relationship, an operating time interval at which the maintenance target device should be maintained according to the operation time interval; Something that has a means to report and (Maintenance time notification means 18 etc.)
shall be.

[For use]

Compare the number of uses that will reach the end of the machine's life with the actual cumulative number of uses, and depending on how close the actual number of uses approaches the number of uses that will reach the end of the machine's life, the operation time interval until the next maintenance will be shortened, and the actual number of uses will be shortened. The cumulative operating time of the system is measured, and the maintenance time that has actually been reached is reported based on the operating time interval.

【Example】

Next, the present invention will be explained in detail based on FIGS. 1 and 2. In the present invention, as shown in FIG. 1, a maintenance timing notification means 1^ is provided in the operation monitoring device 1. This reporting means IA calculates the ratio between the number of uses in the preset life of the equipment (machine) 2 to be maintained and the actual cumulative number of uses, and refers to a preset data table as shown in FIG. 2, for example. Then, the operating time interval of the machine 2 that requires maintenance is determined from time to time, and based on this operating time interval and the cumulative operating time of the machine 2, which is measured separately, the maintenance time that has actually been reached is determined. A report is output to the data output device 3. The data on the upper side of Figure 2 is the ratio of the actual cumulative number of uses to the number of uses that constitute the life of machine 2 (for example, 10,000 times).
%), and the data on the lower side of the figure corresponds to the data on the upper side, indicating the operating time interval (hour) at which maintenance of the machine 2 should be performed. In this example, the former usage frequency ratio is classified into three levels: a safe range of 0 to 50%, a maintenance important range of 50 to 80%, and a dangerous range of 80 to 100%. Therefore, if the lifespan of Machine 2 is 10,000 times, the cumulative number of uses in the safe range is 0 to 5,000 times, the cumulative number of uses in the important maintenance range is 5,000 to 8,000 times, and the cumulative number of uses in the dangerous range is 8,000 to 10,000 times. Become. The operating time intervals at which maintenance should be performed in this order are 2000 hours, 1000 hours, and 500 hours, in other words, maintenance is performed once every 2000 hours.
It is set to be performed once every 1000 hours and once every 500 hours. In this way, the smaller the ratio of the actual cumulative number of uses to the number of uses that constitutes the life of the machine 2, the longer the operating time interval until maintenance is performed; conversely, the higher the ratio, the longer the operating time until maintenance is performed. Shorten the interval.

【Effect of the invention】

According to the present invention, the number of uses that constitutes the life of the machine, the actual cumulative number of uses, and the cumulative operating time are taken into consideration, and even if the machine has the same cumulative operating time, the time until the next maintenance can be varied depending on the difference in the cumulative number of uses. Since we have decided to notify the maintenance time that has actually arrived, appropriate maintenance can be performed and maintenance efficiency can also be increased.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram as an embodiment of the present invention, FIG. 2 is a configuration diagram of a setting data table, and FIG. 3 is an explanatory diagram of conventional maintenance timing. 1: Operation monitoring device, 18: Maintenance time reporting means, 2: Equipment to be maintained (machine), 3: Data output device, 4: Transmission line. #! Keiroku Zeshi L Omi 1 (1 2: Nuclear / 7ff x 1 (piercing) Fig. 2 O FA O Fig. 3

Claims (1)

[Claims] 1) means for monitoring the ratio between the cumulative number of times a device to be maintained is used and the number of times the device is used over a predetermined lifespan; and an operation in which the device to be maintained should be maintained in accordance with this ratio. A means for determining a time interval based on a predetermined relationship; and a means for monitoring the cumulative operating time of the apparatus to be maintained and reporting the maintenance timing that has actually arrived based on the operating time interval. Maintenance time notification device.