CN111811793A - Hydraulic mechanism monitoring method and device - Google Patents
Hydraulic mechanism monitoring method and device Download PDFInfo
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- CN111811793A CN111811793A CN202010511816.6A CN202010511816A CN111811793A CN 111811793 A CN111811793 A CN 111811793A CN 202010511816 A CN202010511816 A CN 202010511816A CN 111811793 A CN111811793 A CN 111811793A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The application relates to a hydraulic mechanism monitoring method and device, which are used for monitoring the state of a hydraulic mechanism. The hydraulic mechanism comprises an electric motor. The hydraulic mechanism monitoring method comprises the steps of determining the number of times of pressing of the hydraulic mechanism in a first preset time period according to the acquired current information and the current information; and determining the state of the hydraulic mechanism according to the pressing times and the duration corresponding to the first preset time period. The hydraulic mechanism monitoring method provided by the embodiment of the application can accurately and timely monitor the state of the hydraulic mechanism, including whether the hydraulic mechanism has an oil leakage fault, whether a motor is damaged, and the like.
Description
Technical Field
The application relates to the technical field of electric power systems, in particular to a hydraulic mechanism monitoring method and device.
Background
The circuit breaker has control and protection functions in the power system, and is one of the most important devices for power transmission and transformation in the power system. A circuit breaker operating mechanism is a power control device for use with circuit breakers, in which a hydraulic mechanism is one of the operating mechanisms currently used with circuit breakers. The hydraulic mechanism is used for pressurizing hydraulic oil by a motor to store energy for a spring, and the breaker is operated by the spring. The monitoring of the state of the hydraulic machine is of great importance to ensure the operation of the hydraulic machine. The state of the hydraulic mechanism generally includes whether the hydraulic structure leaks oil or not and whether the motor is damaged or not, and the oil leakage of the hydraulic mechanism and the damage of the motor can cause errors in the state monitoring of the hydraulic mechanism.
Conventionally, it is common to monitor whether the hydraulic machine is leaking oil in a state of the hydraulic machine. For example: whether the oil level in the hydraulic mechanism is within a normal range is monitored by using a liquid level type oil level gauge, so that whether the hydraulic mechanism leaks oil is judged. However, the method can only send out warning when the oil in the hydraulic mechanism leaks to a value below the normal range, and the oil leakage fault of the hydraulic mechanism cannot be judged quickly and timely. Therefore, a method that can monitor the state of the hydraulic mechanism accurately in time is required.
Disclosure of Invention
In view of the above, it is necessary to provide a hydraulic mechanism monitoring method and apparatus.
In one aspect, an embodiment of the present application provides a hydraulic mechanism monitoring method, configured to monitor a state of a hydraulic mechanism, where the hydraulic mechanism includes a motor, and the hydraulic mechanism monitoring method includes:
acquiring current information of the motor;
according to the current information, determining the number of times of pressing the hydraulic mechanism in a first preset time period;
and determining the state of the hydraulic mechanism according to the number of the pressing times and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether the hydraulic mechanism has an oil leakage fault or not.
In one embodiment, the determining the state of the hydraulic mechanism according to the number of pressing times and the duration corresponding to the first preset time period includes:
judging whether the pressing times are greater than or equal to preset times within the duration corresponding to the first preset time period or not according to the pressing times;
if the number of times of pressing is greater than or equal to the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has an oil leakage fault;
and if the number of times of pressing is less than the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has no oil leakage fault.
In one embodiment, the method further comprises the following steps:
and if the hydraulic mechanism has an oil leakage fault, outputting a first warning signal.
In one embodiment, the method further comprises the following steps:
determining the rotation time length of the motor in a second preset time period according to the current information;
and determining the state of the hydraulic mechanism according to the rotation time length and the time length corresponding to the second preset time period, wherein the state of the hydraulic mechanism comprises whether the motor is damaged.
In one embodiment, the determining the state of the hydraulic mechanism according to the rotation time period and the time period corresponding to the second preset time period includes:
judging whether the rotation time length is greater than or equal to a preset time length within the time length corresponding to the second preset time period or not according to the rotation time length;
if the rotation time length is greater than or equal to the preset time length in the time length corresponding to the second preset time period, the motor is damaged;
and if the rotating time length is less than the preset time length in the time length corresponding to the second preset time period, the motor is not damaged.
In one embodiment, the method further comprises the following steps:
and if the motor is damaged, outputting a second warning signal.
In another aspect, an embodiment of the present application provides a hydraulic mechanism monitoring device, including:
the current information acquisition module is used for acquiring current information of the motor;
the pressing frequency determining module is used for determining the pressing frequency of the hydraulic mechanism in a first preset time period according to the current signal;
and the state determining module is used for determining the state of the hydraulic mechanism according to the number of the pressing times and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether an oil leakage fault exists or not.
In another aspect, an embodiment of the present application provides a hydraulic mechanism monitoring device, including:
the current acquisition module is used for acquiring current information of the motor;
and the control module is in signal connection with the current acquisition module and is used for determining the number of times of pressing the hydraulic mechanism in a first preset time period according to the current information and determining the state of the hydraulic mechanism according to the number of times of pressing and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether an oil leakage fault exists or not.
In one embodiment, the control module is further configured to output a first warning signal if the hydraulic mechanism has an oil leakage fault, and the hydraulic mechanism monitoring apparatus further includes:
and the warning module is in signal connection with the control module and is used for warning according to the first warning signal.
In one embodiment, the method further comprises the following steps:
and the relay is in signal connection between the control module and the warning module.
The embodiment of the application provides a hydraulic mechanism monitoring method and device, the method comprises the steps of obtaining current information of a motor, determining the number of times of pressing of a hydraulic mechanism in a first preset time period according to the current information, and determining the state of the hydraulic mechanism according to the number of times of pressing and the corresponding duration of the first preset time period, wherein the state of the hydraulic mechanism comprises whether the hydraulic mechanism has oil leakage faults or not. According to the hydraulic mechanism monitoring method provided by the embodiment, whether an oil leakage fault exists in the hydraulic mechanism is judged by judging the number of times of pressurizing within the first preset time period. Because the hydraulic mechanism has an oil leakage fault, the pressing frequency can be changed along with the oil leakage fault, and the more serious the oil leakage is, the more obvious the pressing frequency is, therefore, whether the oil leakage fault exists in the hydraulic mechanism can be timely and accurately monitored by judging the pressing frequency, and the state of the hydraulic mechanism can be timely and accurately monitored.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating steps of a hydraulic mechanism monitoring method according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart illustrating steps of a hydraulic mechanism monitoring method according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart illustrating steps of a hydraulic mechanism monitoring method according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart illustrating steps of a hydraulic mechanism monitoring method according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a hydraulic mechanism monitoring device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a hydraulic mechanism monitoring device according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The hydraulic mechanism monitoring method provided by the application can be used for monitoring the state of the hydraulic mechanism, and the state of the hydraulic mechanism can include but is not limited to oil leakage of the hydraulic mechanism, damage of the motor and the like. The hydraulic mechanism comprises a motor, hydraulic oil, a spring and a shell, and the hydraulic oil is arranged in the shell. The hydraulic mechanism uses a motor to press hydraulic oil to store energy for a spring, and the circuit breaker in the power system can be operated through the spring. The hydraulic mechanism monitoring method can be realized by using computer equipment, and the computer equipment is in signal connection with the motor and can acquire related information of the motor. Computer devices include, but are not limited to, control chips, personal computers, laptops, smartphones, tablets, and portable wearable devices. The hydraulic mechanism detection method provided by the application can be realized through Python, can also be applied to other software, and realizes the monitoring of the state of the hydraulic mechanism through other programming languages. For example: the hydraulic mechanism detection method can be applied to S7-200PLC programming software.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides a hydraulic mechanism monitoring method. The present embodiment describes the hydraulic mechanism monitoring method with a computer apparatus as an execution subject. The hydraulic mechanism monitoring method includes:
and S100, acquiring current information of the motor.
The current information is related information of current when the motor works, and the current signal can be represented by a current value when the motor works and also can be represented by a level signal obtained by converting the current value. After the motor is started, the motor can output current, and current information of the motor can be acquired through a current acquisition device. The current collecting device can be a current transformer, a current sensor and other devices capable of collecting current. The current collecting device can store the collected current information in the current collecting device, and when the current information needs to be obtained, the current information is obtained in the current collecting device. The current collecting device can also directly send the collected current information to the computer equipment and store the current information in a memory of the computer equipment, and when the current information needs to be obtained, the computer equipment directly obtains the current information from the memory. The current collecting device can continuously collect the current information of the motor, and during actual monitoring, the computer equipment is used for directly obtaining the current information of the required time period. For convenience of description and explanation later, a period of time during which the current information is collected is named a target period of time.
And S200, determining the pressing times of the hydraulic mechanism in a first preset time period according to the current information.
The first preset time period is set by a worker according to actual monitoring needs. The first preset time period may be the target time period, or may be a part of the target time period. When the circuit breaker needs to be operated, the motor is started, the hydraulic mechanism presses hydraulic oil to store energy for the spring, and the circuit breaker is operated through the spring. The motor is started once, and the hydraulic mechanism is pressed once, so that the pressing times of the hydraulic mechanism can be determined according to the current information of the motor. If the current information is a level signal, a relay needs to be connected to the output end of the motor, and when the motor starts to work and current passes through the relay, the relay is closed, and the level signal is generated. And the computer equipment detects the level signal and records the pressing times once. In a specific embodiment, the first preset time period may be 0 hours to 24 hours, and the computer device may determine the number of times of pressing of the hydraulic mechanism in 0 hours to 24 hours from the current information.
S300, determining the state of the hydraulic mechanism according to the number of the pressing times and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether an oil leakage fault exists or not.
If the hydraulic mechanism has oil leakage faults, the pressing times required when the motor is used for pressing hydraulic oil to store energy for the spring are increased. Therefore, according to the duration corresponding to the first preset time period, by judging whether the number of times of the pressurizing is increased, it can be determined whether the oil leakage fault exists in the hydraulic mechanism, that is, the state of the hydraulic mechanism is determined.
The embodiment of the application provides a hydraulic mechanism monitoring method and device, the method comprises the steps of obtaining current information of a motor, determining the number of times of pressing of a hydraulic mechanism in a first preset time period according to the current information, and determining the state of the hydraulic mechanism according to the number of times of pressing and the corresponding duration of the first preset time period, wherein the state of the hydraulic mechanism comprises whether the hydraulic mechanism has oil leakage faults or not. According to the hydraulic mechanism monitoring method provided by the embodiment, whether an oil leakage fault exists in the hydraulic mechanism is judged by judging the number of times of pressurizing within the first preset time period. Because the hydraulic mechanism has an oil leakage fault, the pressing frequency can be changed along with the oil leakage fault, and the more serious the oil leakage is, the more obvious the pressing frequency is, therefore, whether the oil leakage fault exists in the hydraulic mechanism can be timely and accurately monitored by judging the pressing frequency, and the state of the hydraulic mechanism can be timely and accurately monitored. Therefore, the working personnel can timely and accurately know the state of the hydraulic mechanism and maintain or replace the hydraulic mechanism.
Referring to fig. 2, in an embodiment, the determining the state of the hydraulic mechanism according to the number of pressing times and the duration corresponding to the first preset time period in step S300 includes:
s310, judging whether the pressing times are more than or equal to preset times within the duration corresponding to the first preset time period according to the pressing times.
The preset times are set by workers according to actual conditions, the types of the hydraulic mechanisms are different, and the set preset times may be different. The hydraulic mechanism is used for different time periods, and the preset times can be different. According to the detected number of the pressing times, the computer equipment can determine the state of the hydraulic mechanism by judging whether the number of the pressing times is greater than or equal to the preset number within the time length corresponding to the first preset time period, namely whether the hydraulic mechanism has an oil leakage fault.
S320, if the number of times of pressing is greater than or equal to the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has an oil leakage fault.
S330, if the number of times of pressing is less than the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has no oil leakage fault.
And judging by the computer equipment, if the number of times of pressing is greater than the preset number of times within the duration corresponding to the first preset time period, or the number of times of pressing is equal to the preset number of times within the duration corresponding to the first preset time period, determining that the hydraulic mechanism has frequent pressing within the first preset time period, and indicating that the hydraulic mechanism has oil leakage fault. When the oil leaks from the hydraulic mechanism, the number of times of pressurizing required to reach the energy required by the spring to be stored is increased, and the frequent pressurizing condition exists in the first preset time period, which indicates that the oil leakage fault occurs in the hydraulic mechanism. If the number of times of pressing is smaller than the preset number of times within the duration corresponding to the first preset time period, the number of times of pressing of the hydraulic mechanism within the first preset time period is normal, and the situation of frequent pressing does not exist, which indicates that the hydraulic mechanism does not have an oil leakage fault.
In this embodiment, whether the hydraulic mechanism has an oil leakage fault is determined by determining whether the number of times of pressing within the duration corresponding to the first preset time period satisfies the preset number of times, and a determination result can be obtained by simply comparing the number of times of pressing with the preset number of times.
In a specific embodiment, when the first preset time period is from 0 to 24 hours, the time duration corresponding to the first preset time period is 24 hours, and the preset times are 6 times. If the number of times of pressing is larger than 6 times or the number of times of pressing is equal to 6 times within 24 hours, the hydraulic mechanism is pressed frequently, and oil leakage fault of the hydraulic mechanism is indicated. If the number of the pressing times is less than 6 within 24 hours, the number of the pressing times of the hydraulic mechanism is normal, the frequent pressing condition does not exist, and the hydraulic mechanism does not have oil leakage fault.
With continued reference to fig. 2, in one embodiment, the hydraulic machine monitoring method further includes:
s400, if the hydraulic mechanism has an oil leakage fault, outputting a first warning signal.
The first warning signal can be a warning bell signal or a warning lamp signal. When the computer equipment determines that the hydraulic mechanism has an oil leakage fault, the computer equipment outputs the first warning signal, so that a worker can know the state of the hydraulic mechanism in time and maintain or replace related devices of the hydraulic mechanism in time.
Referring to fig. 3, in one embodiment, the hydraulic machine monitoring method further includes:
and S500, determining the rotation time length of the motor in a second preset time period according to the current information.
The second preset time period may be a time period set by a worker according to actual monitoring needs. The second preset time period may be the same as or different from the first preset time period, and the second preset time period may be a part of the first preset time period. The second preset time period may be the target time period, or may be a part of the target time period. The motor rotates as soon as the motor is started, the motor may be started and stopped for a plurality of times within the second preset time period, and the motor has a small rotation duration between each start and stop. The rotation duration is the accumulated duration of the smaller rotation duration between the multiple starting and stopping of the motor in the second preset time period. The length of time that the current information generated by the motor between each start and stop exists may be used to indicate a smaller rotation length of the motor. And determining the rotation time length of the motor in the second preset time period according to the current information and the accumulated existing time length of the current information in the second preset time period.
S600, determining the state of the hydraulic mechanism according to the rotation time length and the time length corresponding to the second preset time period, wherein the state comprises whether the motor is damaged.
When the motor is damaged and the motor is started, the rotating time needs to be increased, so that the motor can generate required electric energy. Therefore, according to the rotation time length and the time length corresponding to the second preset time period, whether the motor rotates overtime can be determined, so that whether the motor is damaged or not can be determined. In a specific embodiment, when the second preset time period is from 8 hours to 30 minutes to 9 hours, the time duration corresponding to the second preset time period is 30 minutes.
In this embodiment, whether the motor is damaged or not is determined by judging the rotation time of the motor, so that a worker can timely acquire the running state of the motor, and the state of the hydraulic mechanism can be comprehensively monitored. And when the motor is damaged, a worker can maintain and replace the motor in time, and the operation stability of the hydraulic mechanism is improved.
Referring to fig. 4, in an embodiment, the determining the state of the hydraulic mechanism according to the rotation time length and the time length corresponding to the second preset time period in step S600 includes:
s610, judging whether the rotation time length is greater than or equal to a preset time length in the time length corresponding to the second preset time period according to the rotation time length.
The preset time length may be a time length preset by a worker according to an actual situation. The motor is different in type, the preset duration is possibly different, the service life of the motor is different in length, and the preset duration is also possibly different. The computer device can determine the state of the hydraulic mechanism, namely whether the motor is damaged or not, by judging whether the rotation time length is greater than the preset time length within the time length corresponding to the second preset time period or not or whether the rotation time length is equal to the preset time length within the time length corresponding to the second preset time period according to the rotation time length.
S620, if the rotating time length is greater than or equal to the preset time length in the time length corresponding to the second preset time period, the motor is damaged.
And S630, if the rotating time length is less than the preset time length in the time length corresponding to the second preset time period, the motor is not damaged.
And judging by the computer, if the rotating time length is greater than the preset time length in the time length corresponding to the second preset time period, or the rotating time length is equal to the preset time length in the time length corresponding to the second preset time period, wherein the condition that the motor is rotated overtime exists in the second preset time period, and the motor is damaged. If the time length corresponding to the rotation time length in the second preset time period is less than the preset time length, the motor works normally in the second preset time period, and the condition of rotation overtime does not exist, which indicates that the motor is not damaged.
In this embodiment, whether the motor is damaged or not is determined by determining whether the rotation duration meets the preset duration within the duration corresponding to the second preset time period, and a determination result can be obtained by simply comparing the determined rotation duration with the preset duration.
In a specific embodiment, when the second preset time period is from 8 hours to 30 minutes to 9 hours, the time duration corresponding to the second preset time period is 30 minutes. The preset time is 180 seconds. If the rotating time length is greater than 180 seconds or equal to 180 seconds within 30 minutes, the motor has a condition of rotating overtime, which indicates that the motor is damaged. If the rotating time is less than 180 seconds within 30 minutes, the motor does not have the condition of rotating overtime, and the motor is not damaged.
In one embodiment, the overtime of the motor rotation time can also indirectly reflect that the oil leakage fault exists in the hydraulic mechanism. Because, if hydraulic pressure mechanism oil leak, then use the motor to pressurize hydraulic oil and for the spring energy storage time, the electric energy that needs can increase. The motor needs to increase the rotation time to improve the electric energy which can be provided by the motor, so that whether the oil leakage fault exists in the hydraulic mechanism can be reflected by judging whether the rotation time of the motor is overtime or not.
With continued reference to fig. 4, in one embodiment, the hydraulic machine monitoring method further includes:
and S700, if the motor is damaged, outputting a second warning signal.
The second warning signal can be a warning bell signal or a warning lamp signal. The first warning signal and the second warning signal can both be warning light signals, and the first warning signal and the second warning signal are distinguished through the color of the warning light signals. And the computer equipment can output the second warning signal when determining that the rotation time of the motor is overtime and is damaged, so that a worker can know the running state of the motor in time and repair or replace the motor in time.
It should be understood that, although the steps in the flowcharts in the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.
Referring to fig. 5, an embodiment of the present application provides a hydraulic mechanism monitoring device 10. The hydraulic mechanism monitoring device 10 comprises a current information acquisition module 100, a pressing frequency determination module 200 and a state determination module 300. Wherein the content of the first and second substances,
the current information acquiring module 100 is configured to acquire current information of the motor.
The pressing frequency determining module 200 is configured to determine the pressing frequency of the hydraulic mechanism within a first preset time period according to the current signal.
The state determining module 300 is configured to determine the state of the hydraulic mechanism according to the number of pressing times and the duration corresponding to the first preset time period, where the state of the hydraulic mechanism includes whether an oil leakage fault exists.
In one embodiment, the state determining module 300 is further configured to determine the state of the hydraulic mechanism according to the number of pressing times and a duration corresponding to the first preset time period; if the number of times of pressing is greater than or equal to the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has an oil leakage fault; and if the number of times of pressing is less than the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has no oil leakage fault.
In one embodiment, the hydraulic mechanism monitoring device 10 further includes a first warning signal output module, where the first warning signal output module is configured to output a first warning signal if the hydraulic mechanism has an oil leakage fault.
In one embodiment, the hydraulic machine monitoring device 10 further includes a rotation duration determination module and a motor status determination module. The rotation duration determining module is used for determining the rotation duration of the motor in a second preset time period according to the current signal. The motor state determining module is used for determining the state of the hydraulic mechanism according to the rotation time length and the time length corresponding to the second preset time period, wherein the state of the hydraulic mechanism comprises whether the motor is damaged or not.
In one embodiment, the motor state determining module is further configured to determine, according to the rotation duration, whether the rotation duration is greater than or equal to a preset duration within a duration corresponding to the second preset time period; if the rotation time length is greater than or equal to the preset time length in the time length corresponding to the second preset time period, the motor is damaged; and if the rotating time length is less than the preset time length in the time length corresponding to the second preset time period, the motor is not damaged.
In one embodiment, the hydraulic mechanism monitoring module further includes a second warning signal output module, and the second warning signal output module is configured to output a second warning signal if the motor is damaged.
Referring to fig. 6, an embodiment of the present application provides a hydraulic mechanism monitoring device 20, which includes a current collecting module 21 and a control module 22. The current collection module 21 is used for collecting current information of the motor. The current collection module 21 may be a current transformer, a current sensor, or other devices capable of collecting current information. The present embodiment does not limit the type of the current collecting module 21, as long as the function thereof can be achieved.
The control module 22 is in signal connection with the current acquisition module, and is configured to determine, according to the current information, the number of times of pressing of the hydraulic mechanism in a first preset time period, and determine, according to the number of times of pressing and a duration corresponding to the first preset time period, a state of the hydraulic mechanism, where the state of the hydraulic mechanism includes whether an oil leakage fault exists. The control module 22 may be, but is not limited to, an industrial computer, a notebook computer, a smart phone, a tablet computer, a portable wearable device, and the like. The present embodiment does not limit the kind, structure, and the like of the processing module 300, as long as the functions thereof can be realized. For the description of the specific control function of the control module 22, reference may be made to the description of the hydraulic mechanism monitoring method, which is not described herein again.
In one embodiment, the control module 22 is further configured to determine a rotation duration of the motor within a second preset time period according to the current information; and determining the state of the hydraulic mechanism according to the rotation time length and the time length corresponding to the second preset time period, wherein the state of the hydraulic mechanism comprises whether the motor is damaged.
With continued reference to fig. 6, in an embodiment, the control module 22 is further configured to output a first warning signal if there is an oil leakage fault in the hydraulic mechanism, and the hydraulic mechanism monitoring apparatus 20 further includes a warning module 23. The warning module 23 with control module 22 signal connection, warning module 23 is used for according to first warning signal warns. The warning module 23 may be a warning bell, or a warning device such as a warning lamp or an audible and visual alarm. The control module 22 outputs the first warning signal when determining that the hydraulic mechanism has an oil leakage fault, and the warning module 23 warns according to the received first warning signal.
In one embodiment, the control module 22 is further configured to output a second warning signal if the motor is damaged. The warning module 23 can be a warning light with two colors, which are red and green respectively. The control module 22 is used for outputting the first warning signal when determining that the hydraulic mechanism has an oil leakage fault, and the warning module 23 is used for lighting a red warning lamp according to the received first warning signal. The control module 23 is confirming when the motor takes place to damage, output the second warning signal, warning module 23 lights up green warning light according to receiving the second warning signal.
In this embodiment, the staff passes through warning module 23 can be directly perceived timely acquireing the state of hydraulic pressure mechanism to the basis warning module 23's different warning signal is in time right the corresponding device of hydraulic pressure structure is maintained or is changed.
With continued reference to fig. 6, in one embodiment, the hydraulic machine monitoring device 20 further includes a relay 24. The relay 24 is in signal connection between the control module 22 and the warning module 23. The relay 24 is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is generally used in an automatic control circuit, and is actually an "automatic switch" that uses a small current to control a large current. When the control module 22 determines that the hydraulic mechanism has an oil leakage fault, the first warning signal is output, and the first warning signal drives the relay 24 to work, that is, the relay 24 is closed. The first warning signal is output to the warning module 23 through the relay 24, and the warning module 23 warns according to the first warning signal. In this embodiment, the relay 24 may be used to protect the warning module 23, so as to improve the practicability of the hydraulic mechanism monitoring device 20.
In a particular embodiment, the hydraulic machine monitoring device 20 comprises a first relay and a second relay. The warning module 23 includes a red warning light and a green warning light. The first relay is connected between the control module 22 and the red warning lamp, and the first warning signal can drive the first relay to work, so that the red warning lamp is turned on. The second relay connect in control module group 22 with between the green warning light, second warning signal can drive the work of second relay makes the green warning light lights.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A hydraulic mechanism monitoring method for monitoring a state of a hydraulic mechanism including a motor, comprising:
acquiring current information of the motor;
according to the current information, determining the number of times of pressing the hydraulic mechanism in a first preset time period;
and determining the state of the hydraulic mechanism according to the number of the pressing times and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether the hydraulic mechanism has an oil leakage fault or not.
2. The hydraulic mechanism monitoring method according to claim 1, wherein the determining the state of the hydraulic mechanism according to the number of the pressings and the duration corresponding to the first preset time period includes:
judging whether the pressing times are greater than or equal to preset times within the duration corresponding to the first preset time period or not according to the pressing times;
if the number of times of pressing is greater than or equal to the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has an oil leakage fault;
and if the number of times of pressing is less than the preset number of times within the duration corresponding to the first preset time period, the hydraulic mechanism has no oil leakage fault.
3. The hydraulic machine monitoring method according to claim 2, characterized by further comprising:
and if the hydraulic mechanism has an oil leakage fault, outputting a first warning signal.
4. The hydraulic machine monitoring method according to claim 1, characterized by further comprising:
determining the rotation time length of the motor in a second preset time period according to the current information;
and determining the state of the hydraulic mechanism according to the rotation time length and the time length corresponding to the second preset time period, wherein the state of the hydraulic mechanism comprises whether the motor is damaged.
5. The hydraulic mechanism monitoring method according to claim 4, wherein the determining the state of the hydraulic mechanism according to the rotation time period and the time period corresponding to the second preset time period includes:
judging whether the rotation time length is greater than or equal to a preset time length within the time length corresponding to the second preset time period or not according to the rotation time length;
if the rotation time length is greater than or equal to the preset time length in the time length corresponding to the second preset time period, the motor is damaged;
and if the rotating time length is less than the preset time length in the time length corresponding to the second preset time period, the motor is not damaged.
6. The hydraulic machine monitoring method according to claim 5, characterized by further comprising:
and if the motor is damaged, outputting a second warning signal.
7. A hydraulic mechanism monitoring device, comprising:
the current information acquisition module is used for acquiring current information of the motor;
the pressing frequency determining module is used for determining the pressing frequency of the hydraulic mechanism in a first preset time period according to the current signal;
and the state determining module is used for determining the state of the hydraulic mechanism according to the number of the pressing times and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether an oil leakage fault exists or not.
8. A hydraulic mechanism monitoring device, comprising:
the current acquisition module is used for acquiring current information of the motor;
and the control module is in signal connection with the current acquisition module and is used for determining the number of times of pressing the hydraulic mechanism in a first preset time period according to the current information and determining the state of the hydraulic mechanism according to the number of times of pressing and the duration corresponding to the first preset time period, wherein the state of the hydraulic mechanism comprises whether an oil leakage fault exists or not.
9. The hydraulic mechanism monitoring device according to claim 8, wherein the control module is further configured to output a first warning signal if the hydraulic mechanism has an oil leakage fault, and the hydraulic mechanism monitoring device further comprises:
and the warning module is in signal connection with the control module and is used for warning according to the first warning signal.
10. The hydraulic machine monitoring device according to claim 9, further comprising:
and the relay is in signal connection between the control module and the warning module.
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| CN202010511816.6A CN111811793A (en) | 2020-06-08 | 2020-06-08 | Hydraulic mechanism monitoring method and device |
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| CN202010511816.6A CN111811793A (en) | 2020-06-08 | 2020-06-08 | Hydraulic mechanism monitoring method and device |
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| CN110701136A (en) * | 2019-09-30 | 2020-01-17 | 国网福建省电力有限公司检修分公司 | Auxiliary system suitable for analyzing and early warning frequent pressing data of circuit breaker hydraulic system |
| CN110879352A (en) * | 2019-11-25 | 2020-03-13 | 广州供电局有限公司 | Remote monitoring system, method and device for pressing state of switch energy storage mechanism |
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2020
- 2020-06-08 CN CN202010511816.6A patent/CN111811793A/en active Pending
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| DE102014216609A1 (en) * | 2014-08-21 | 2016-02-25 | Zf Friedrichshafen Ag | Monitoring a coil |
| CN105823983A (en) * | 2016-05-06 | 2016-08-03 | 国家电网公司 | Mechanical characteristic state on-line monitoring system for high voltage breaker |
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Application publication date: 20201023 |