Chain equipment monitoring system
阅读说明:本技术 链条设备监视系统 (Chain equipment monitoring system ) 是由 柴山智成 关野祐司 森川明文 于 2019-06-25 设计创作,主要内容包括:本发明的目的在于得到一种链条设备监视系统,本发明能够有效地进行设置在多个据点的链条设备的监视。能够将设置在多个据点的链条设备的信息集中到服务器装置,在服务器装置侧判定是否应该更换环状链条的链节,并且在服务器装置侧预测所述链节的更换时期。本发明的链条设备监视系统,具备:多个链条设备,该链条设备包括将多个链节相连而成的环状链条及其驱动装置;设备信息取得单元,设置于每个上述链条设备;以及服务器装置,经由网络而与多个所述设备信息取得单元相连,所述服务器装置具有存储单元、更换判定单元以及更换判定预测单元。(The invention aims to obtain a chain equipment monitoring system which can effectively monitor chain equipment arranged at a plurality of sites. Information on chain devices installed at a plurality of sites can be collected in a server device, whether or not a link of an endless chain should be replaced is determined on the server device side, and the time of replacement of the link can be predicted on the server device side. The chain equipment monitoring system of the present invention includes: a plurality of chain devices including an endless chain formed by connecting a plurality of links and a driving device thereof; an equipment information acquiring unit provided for each of the chain equipments; and a server device connected to the plurality of device information acquisition means via a network, the server device including storage means, replacement determination means, and replacement determination prediction means.)
1. A chain equipment monitoring system is provided with:
a plurality of chain devices including an endless chain formed by connecting a plurality of links and a driving device thereof;
an equipment information acquiring unit provided for each of the chain equipments; and
a server device connected to the plurality of device information acquisition units via a network,
the equipment information acquiring unit acquires, from the chain equipment:
equipment operation information including information on operation conditions under which the chain equipment is operated respectively;
link unique information which is information unique to the link; and
link state information indicating the state of each of all the links in the endless chain during a chain circulation period, which is a period unique to each of the chain devices, and/or during a predetermined measurement period, which is a period longer than the chain circulation period, wherein the endless chain circulates once,
the server device includes a storage unit, a replacement determination unit, and a replacement determination prediction unit,
the storage unit stores:
the equipment operation information of each of the chain equipment;
the link intrinsic information of each of the links; and
the link state information during each chain cycle and/or during the prescribed measurement,
the replacement determination unit determines whether or not the link should be replaced, based on the link unique information and the link state information stored in the storage unit,
the replacement determination prediction unit predicts a time at which the replacement determination unit can determine that the link should be replaced, for each of the chain devices, in accordance with a future operating condition, which is an operating condition expected to be applied in the future, based on the device operating information, the link unique information, and the link state information stored in the storage unit.
2. The chain equipment monitoring system of claim 1,
the storage unit stores:
a link life period, which is a period from the first use in the chain apparatus to the time when the replacement determination means determines that the link determined to be replaced by the replacement determination means should be replaced; and
link passing information relating to the equipment operating information of the chain equipment including the link during the link life and the link status information during each chain cycle and/or the prescribed measurement period for the link,
the replacement determination prediction unit is a unit that determines that,
determining a correction value according to the operating condition based on the link life span and the link passage information stored in the storage unit,
the timing at which each of the chain devices determines that the link corresponding to the future operating condition should be replaced is predicted based on the correction value information, which is information relating to the correction value corresponding to the future operating condition, the link unique information and the link state information stored in the storage unit.
3. The chain equipment monitoring system of claim 2,
the replacement determination prediction unit is a unit that determines that,
when the link life duration and the link passing information are newly stored in the storage unit,
the correction value according to the operating condition is newly determined based on the newly stored link life span and link passage information and the link life span and link passage information stored up to now.
4. The chain equipment monitoring system as claimed in any one of claims 1 to 3,
the equipment operation information further includes information on an operation environment, which is an environment in which each of the chain equipments is operated.
5. The chain equipment monitoring system as claimed in any one of claims 1 to 3,
the equipment operation information includes, as operation conditions, the length of the endless chain, the operation time of the chain equipment per day, and the weight of the conveyed object.
6. The chain equipment monitoring system as claimed in any one of claims 1 to 3,
the endless chain includes:
a center link formed of an elongated annular member or a rod-like member having pin holes penetrating in the vertical direction at front and rear end portions;
upper and lower pairs of links formed of plate-like members having pin holes penetrating in the vertical direction at front and rear end portions; and
a connecting pin connecting the center link and the pair of upper and lower side links,
the link state information is information relating to a distance between a leading end portion of the preceding center link and a leading end portion of the center link that is continuous therewith.
7. The chain equipment monitoring system as claimed in any one of claims 1 to 3,
the server device further includes a difference information calculation unit that calculates link state difference information indicating a difference between the link state information acquired during the chain circulation period and/or the predetermined measurement period and the link state information acquired during the previous chain circulation period and/or the predetermined measurement period,
the replacement determination unit determines whether the link should be replaced based on the link-specific information and the link-state differential information,
the storage unit further stores the link state difference information for each chain cycle period and/or each predetermined measurement period for each link,
the replacement determination prediction means may replace the link state information with the link state difference information, and predict a time at which the replacement determination means can determine that the link should be replaced, in each of the chain devices, in accordance with a future operation condition, which is an operation condition expected to be applied in the future.
8. The chain equipment monitoring system of claim 7,
the link state information includes information relating to the interval of the link, i.e. link interval information,
the link state difference information is information of a difference between the intervals of the links measured during each chain cycle and/or the predetermined measurement period for each link.
9. The chain equipment monitoring system of claim 7,
the chain device further includes an automatic oil supply unit that supplies oil to the endless chain when a change rate of the link state difference information calculated for each of the chain cycle periods and/or the predetermined measurement period becomes a predetermined value or more.
10. The chain equipment monitoring system of claim 8,
the chain device further includes an automatic oil supply unit that supplies oil to the endless chain when a change rate of the link state difference information calculated for each of the chain cycle periods and/or the predetermined measurement period becomes a predetermined value or more.
Technical Field
The present invention relates to a monitoring system for monitoring a chain facility including an endless chain formed by connecting a plurality of links and a driving device thereof.
Background
In a manufacturing line of a factory or the like, a chain facility including an endless chain formed by connecting a plurality of links and a driving device thereof is widely used.
In such a chain apparatus, an endless chain stretched over a drive sprocket, a steering wheel, and the like circulates, and the endless chain is repeatedly bent while tension is applied to the endless chain, and thus the endless chain is gradually worn.
When the wear of the endless chain progresses, the operation of the chain device is hindered, or the endless chain breaks and stops operating, so that it is necessary to monitor the wear state of the endless chain.
Conventionally, most of the equipment manufacturers have been inefficient in that they regularly incorporate a measuring device into a chain equipment to measure elongation of the endless chain due to wear, and preparation and arrangement of the measurement takes time.
On the other hand, there is also a technique of monitoring the wear state of the endless chain by automatically measuring the elongation of the endless chain due to wear (see, for example,
In
The computer 4 then determines "dangerous link" when the length of the link gap is longer than the dangerous length, determines "attention link" when the length of the link gap is shorter than the dangerous length and longer than the attention length, determines "safe link" when the length of the link gap is shorter than the attention length, and outputs and displays these link numbers on the display 7, the
In the method of the second invention of
Then, the CPU11 issues, for example, an alarm when the found actual wear elongation exceeds a predetermined threshold.
In the present situation, monitoring for automatically measuring elongation of the endless chain due to wear as in
On the other hand, there is a technique of grasping and performing maintenance or the like of the state of a machine or an industrial device installed at a plurality of locations (for example, see
The management system a for machine equipment of
The management system a transmits the operation information of the compressors installed at the
For example, the information processing device 109 determines whether or not the proportion occupied by the no-load operation is equal to or greater than a predetermined value as the operation tendency of the compressor during a predetermined period, and determines a set value for making the proportion occupied by the no-load operation smaller than the predetermined value based on the analysis of the operation information when the proportion occupied by the no-load operation is equal to or greater than the predetermined value, and transmits the set value to the computer PC3 of the user corresponding to the compressor via the network N2. The user who receives the set value changes the set value of the compressor to an appropriate value, thereby improving the operation efficiency of the compressor.
The
The
The component
Since the
Patent document 1: japanese Kokai publication Hei 01-014722
Patent document 2: japanese laid-open patent publication No. 11-325829
Patent document 3: japanese patent No. 5887217
Patent document 4: japanese patent No. 6123361
In the conventional method of monitoring the wear state by measuring the elongation due to wear of the endless chain, since the determination is performed independently using the measurement results independently performed in each chain device, it takes a lot of time to compare the measurement data with the past and to compare and verify the measurement data with other chain devices.
Therefore, the inventors of the present application consider the following cases: instead of monitoring the wear state of the endless chain in each of the chain facilities installed at a plurality of sites independently, the chain facilities installed at a plurality of sites are connected via a network as in
Disclosure of Invention
The invention aims to obtain a chain equipment monitoring system which can effectively monitor chain equipment arranged at a plurality of sites.
The inventors of the present application have completed the present invention in view of the following circumstances: information on chain devices installed at a plurality of sites can be collected in a server device, whether or not a link of an endless chain should be replaced is determined on the server device side, and the time of replacement of the link can be predicted on the server device side.
The gist of the present invention is as follows.
[1] A chain equipment monitoring system is provided with:
a plurality of chain devices including an endless chain formed by connecting a plurality of links and a driving device thereof;
an equipment information acquiring unit provided for each of the chain equipments; and
a server device connected to the plurality of device information acquisition units via a network,
the equipment information acquiring unit acquires, from the chain equipment:
equipment operation information including information on operation conditions under which the chain equipment is operated respectively;
link unique information which is information unique to the link; and
link state information indicating the state of each of all the links in the endless chain during a chain circulation period, which is a period unique to each of the chain devices, and/or a predetermined measurement period, which is a period longer than the chain circulation period, in which the endless chain circulates once,
the server device includes a storage unit, a replacement determination unit, and a replacement determination prediction unit,
the storage unit stores the device operation information for each of the chain devices, the link unique information for each of the links, and the link state information for each of the chain cycle periods and/or the predetermined measurement periods,
the replacement determination unit determines whether or not the link should be replaced, based on the link unique information and the link state information stored in the storage unit,
the replacement determination prediction means predicts a time at which the replacement determination means can determine that the link should be replaced, for each of the chain devices, in accordance with a future operating condition, which is an operating condition expected to be applied in the future, based on the device operating information, the link unique information, and the link state information stored in the storage unit.
[2] The chain equipment monitoring system according to item [1], wherein,
the storage unit stores:
a link life period, which is a period from the first use in the chain apparatus to the time when the replacement determination means determines that the link determined to be replaced by the replacement determination means should be replaced; and
link passing information relating to the equipment operating information of the chain equipment including the link during the link life and the link status information during each chain cycle and/or during the prescribed measurement of the link,
the replacement determination prediction unit is a unit that determines that,
determining a correction value according to the operating condition based on the link life span and the link passage information stored in the storage unit,
the timing at which each of the chain devices determines that the link corresponding to the future operating condition should be replaced is predicted based on the correction value information, which is information relating to the correction value corresponding to the future operating condition, the link unique information and the link state information stored in the storage unit.
[3] The chain equipment monitoring system according to [2], wherein,
the replacement determination prediction unit is a unit that determines that,
when the link life duration and the link passing information are newly stored in the storage unit,
and re-determining the correction value according to the operating condition based on the newly stored link life and link passage information and the link life and link passage information stored so far.
[4] The chain equipment monitoring system according to any one of [1] to [3], wherein,
the equipment operation information further includes information on an operation environment, which is an environment in which each of the chain equipments is operated.
[5] The chain equipment monitoring system according to any one of [1] to [3], wherein,
the equipment operation information includes, as operation conditions, the length of the endless chain, the operation time of the chain equipment per day, and the weight of the conveyed object.
[6] The chain equipment monitoring system according to any one of [1] to [3], wherein,
the endless chain includes:
a center link formed of an elliptical ring member or a rod member having pin holes penetrating in the vertical direction at front and rear end portions;
upper and lower pairs of links formed of plate-like members having pin holes penetrating in the vertical direction at front and rear end portions; and
a connecting pin connecting the center link and the pair of upper and lower side links,
the link state information is information relating to a distance between a leading end portion of the preceding center link and a leading end portion of the center link that is continuous therewith.
[7] The chain equipment monitoring system according to any one of [1] to [3], wherein,
the server device further includes a difference information calculation unit that calculates link state difference information indicating a difference between the link state information acquired during the chain circulation period and/or the predetermined measurement period and the link state information acquired during the previous chain circulation period and/or the predetermined measurement period,
the replacement determination means determines whether or not the link should be replaced based on the link unique information and the link state difference information,
the storage unit further stores the link state difference information for each chain cycle period and/or each predetermined measurement period for each link,
the replacement determination prediction means predicts a time at which the replacement determination means can determine that the link should be replaced, in each of the chain devices, in accordance with a future operating condition that is an operating condition expected to be applied in the future.
[8] The chain equipment monitoring system according to item [7], wherein,
the link state information includes link interval information that is information relating to the interval of the link,
the link state difference information is information of a difference between the intervals of the links measured during each chain cycle and/or the predetermined measurement period for each link.
[9] The chain equipment monitoring system according to item [7], wherein,
the chain device further includes an automatic oil supply unit that supplies oil to the endless chain when a change rate of the link state difference information calculated for each of the chain cycle periods and/or the predetermined measurement period becomes a predetermined value or more.
[10] The chain equipment monitoring system according to item [8], wherein,
the chain device further includes an automatic oil supply unit that supplies oil to the endless chain when a change rate of the link state difference information calculated for each of the chain cycle periods and/or the predetermined measurement period becomes a predetermined value or more.
ADVANTAGEOUS EFFECTS OF INVENTION
The chain equipment monitoring system according to the present invention mainly has the following effects.
(1) In a plurality of chain devices each including an endless chain formed by connecting a plurality of links and a driving device thereof, device operation information, link unique information, and link state information are acquired from the plurality of chain devices by a device information acquiring unit provided for each chain device, and are collected in a server apparatus.
(2) A replacement determination unit of the server device determines whether the link should be replaced or not based on the link unique information and the link state information.
(3) The replacement determination prediction unit of the server device predicts, based on the device operation information, the link unique information, and the link state information, a time at which the replacement determination unit determines that the link should be replaced, the time corresponding to a future operation condition, which is an operation condition expected to be applied in the future, in each of the plurality of chain devices.
(4) By collecting the measurement results of the plurality of device information acquisition means in the server apparatus, it is possible to analyze not only a specific endless chain but also measurement results of a plurality of portions of the endless chain together, and therefore it is possible to perform prediction with high accuracy.
(5) By transmitting the determination result by the replacement determination means and the prediction result by the replacement determination prediction means to the user apparatus, the user apparatus can use the results, and therefore, the plurality of chain devices can be monitored very efficiently.
Drawings
Fig. 1 is a schematic diagram showing a network of a chain equipment monitoring system according to an embodiment of the present invention.
Fig. 2 is a block diagram showing a system outline of the chain equipment monitoring system.
Fig. 3 is a schematic diagram mainly showing the flow of signals and data.
Fig. 4 is a graph showing the link lengths of the respective link numbers of the endless chain measured by the chain wear measuring device as the equipment information acquiring means.
Fig. 5 is a flowchart showing an operation of the control unit of the device information acquisition means.
Fig. 6 shows an example of a transition diagram and a prediction diagram, where (a) shows a prediction diagram in the case of continuous use under the current use condition, and (b) shows a prediction diagram matching the future use condition.
Fig. 7 is a flowchart showing an operation of the control unit of the server device.
Fig. 8 is a flowchart showing the operation of the replacement determination prediction by the control unit.
Fig. 9 is a schematic plan view showing an example of arrangement of a chain wear measuring device as a device information acquiring unit in the chain device.
Fig. 10 is an exploded perspective view of the endless chain.
Fig. 11 is a perspective view of the chain wear measuring device.
Fig. 12 is a partial longitudinal cross-sectional view of the chain wear measuring device.
Fig. 13 is a front perspective view showing a sensor of the chain wear measuring device.
Fig. 14 is a front view of the chain wear measuring device.
Description of the symbols
1 chain equipment monitoring system
2 chain equipment
3 server device
3A transceiver
3B control part
3C memory cell
4-user device
4A transceiver
4B control part
4C display unit
5 device information acquisition unit
5A transmitting/receiving unit
5B control part
5C memory cell
6 magnetic yoke
7 guide rail
8 contact wheel
9 running roller
10 ring chain
11 center link
11A pinhole
12 side chain segment
12A pin hole
13 connecting pin
14 drive device
15 drive sprocket
16 steering wheel
17 turning roll
18 tensioner
19 reflecting plate
20 chain wear measuring device
21 reflection type photoelectric sensor (measurement start position detection unit)
22 transmission type photoelectric sensor (reference position detecting unit)
22A projector
22B light receiver
23 laser CCD Length measuring sensor (distance measuring unit)
23A projector
23B light receiver
24 support member
25 sensor controller
C circulation path
D0 reference length
D distance from the reference position to the subsequent reference position
L1, L2, L3 light
N network
P1 first prescribed position
P2 second prescribed position
RP measurement reference position
Width of measurement of W
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
In the following embodiments, the traveling direction of the endless chain is set to the front, the opposite direction is set to the rear, the left and right are defined toward the front, and the left and right are viewed from the front.
< monitoring system for chain equipment >
As shown in a schematic diagram showing a network in fig. 1, a block diagram showing a system outline in fig. 2, and a schematic diagram showing a flow of main signals and data in fig. 3, a chain
The
The network N is, for example, a wan (wide Area network) having the same connection method as the internet, and the device
The user device 4 may be located in each
The
The device
The
The
When the
The user apparatus 4 displays data collected by the
When receiving the "link replacement instruction" from the
< device information acquiring Unit >
The device
Here, the operation conditions are, for example, the operation time of the
In a preferred embodiment, the equipment operation information further includes information on an operation environment such as temperature and humidity, which is an environment in which each of the
The device
Here, the chain circulation period is a time during which the
The link state information is information related to the state of the link such as the link length (for example, the distance from the measurement reference position of the center link to the measurement reference position of the subsequent center link).
(example of measurement data of device information acquiring means)
Fig. 4 is an example of a graph showing the link length of each link number of the
By periodically measuring the length of each link of the
(operation of control section of device information acquisition means)
The description is made with reference to the flowchart of fig. 5.
Here, a case will be described as an example in which the device
The
If the
If the link state information of all the links is not acquired, the
If the link state information of all the links is acquired, the
If the
When the
When the acquisition of the link state information by the equipment
< Server device >
The device operation information for each
The
The replacement determination unit determines whether or not a link should be replaced, based on the link unique information and the link state information stored in the
The replacement determination prediction means predicts a time at which the replacement determination means may determine that the link should be replaced, in each of the
The
In a preferred embodiment, the replacement determination prediction means determines a correction value according to the operating condition based on the link life time and the link passage information stored in the storage means 3C, and predicts a time at which it is determined that the link according to the future operating condition should be replaced in each of the
In a more preferred embodiment, when the link life and the link passage information are newly stored in the
In a more preferred embodiment, the
In this case, the replacement determination means determines whether or not the link should be replaced based on the link unique information and the link state difference information, the storage means 3C further stores the link state difference information for each chain cycle period and/or each predetermined measurement period for each link, and the replacement determination prediction means replaces the link state information with the link state difference information to predict a time at which the replacement determination means may determine that the link should be replaced, depending on a future operating condition, which is an operating condition expected to be applied in the future, for each of the
In a further preferred embodiment, the link state information includes link interval information that is information on the intervals of the links, and the link state difference information is information on the difference between the intervals of the links measured for each of the chain cycle periods and/or each of the predetermined measurement periods.
(example of transition map and prediction map generated by Server device)
Fig. 6(a) shows an example of a transition diagram of the wear amount of the
As described above, the replacement determination prediction means of the
The wear amount in fig. 6(a) and 6(b) shows, as an example, the wear amount with respect to the initial length of the
(operation of control section of Server device)
The main routine is explained with reference to the flowchart of fig. 7.
The
The replacement determination means of the
When the replacement determination means determines that the link should be replaced, an instruction indicating that the link should be replaced is transmitted from the transmission/
If the replacement determination means does not determine that the link should be replaced, the transition map of the link state information in each
Specifically, in the transition diagram, the link state information is a link length, and represents the link length in units of the measurement period as an average value of the link lengths of all the links in the
In fact, not limited to this, various transition maps may be created according to the request of the user apparatus 4, and for example, a transition of the link length per measurement period of the unit of a link, a transition of the wear amount per measurement period, and the like may be created.
That is, in the "update of the transition map of the link state information" (S5), the change may be appropriately made in accordance with the request of the user apparatus 4, or the transition map may be created (updated) only when there is a request from the user apparatus 4.
Next, the
(model function)
The model function is generated in a form (unit and form) matching the transition map of the previous "transition map update of link state information" process (S5).
The model function can predict the period until the wear limit of the links is reached by determining the operating conditions of the chain device 2 (for example, the length of the
(correction of model function based on machine learning)
For example, the model function is corrected each time the
Next, the subroutine is described with reference to the flowchart of fig. 8.
The
The
The
< example of device information acquiring means >
The chain wear measuring
In the
In such a
Therefore, in order to measure the wear of the
(Ring chain)
As shown in the exploded perspective view of fig. 10, the
The
The side links 12 are formed of plate-like members having
The connecting
As shown in the perspective view of fig. 11 and the front view of fig. 14, pulleys 8, … are attached to the
As shown in the perspective view of fig. 11 and the partial vertical cross-sectional view of fig. 12, the guide rails 7 and 7 are a pair of left and right channel steels having a substantially コ -shaped cross section, with openings facing each other at a distance in the left-right direction, but the traveling rollers may be engaged on the left and right sides as one guide rail formed of I-shaped steel.
(constitution of chain wear measuring device)
As shown in the perspective view of fig. 11, the partial vertical cross-sectional view of fig. 12, and the front view of fig. 14, the chain wear measuring
The reflection type
The
The laser type CCD
As shown in the front perspective view of fig. 13 and the front view of fig. 14, the
The laser CCD
The laser CCD
(operation of chain wear measuring device)
A
Light L2 is projected from the
As shown in fig. 13, at the above timing, the laser CCD
When the
The chain wear measuring
In the
In a preferred embodiment, the
Since the abrasion of the
Since the friction coefficient of the sliding portion is largely controlled by the oil-supplied state of the chain, for example, when the change rate of the link state difference information becomes equal to or greater than a predetermined value, the automatic oil supply unit supplies oil to the
The chain
Then, the replacement determination unit of the
Further, the replacement determination prediction means of the
Further, by concentrating the measurement results of the plurality of device
By transmitting the determination result of the replacement determination means and the prediction result of the replacement determination prediction means to the user device 4, the results can be used flexibly on the user device 4 side, and therefore, the plurality of
The above description of the embodiments is illustrative, and not restrictive. Various improvements and modifications can be made without departing from the scope of the invention.
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