CN117457434A - Frequent fluid replacement monitoring method for hydraulic spring operating mechanism, storage medium and mechanism - Google Patents
Frequent fluid replacement monitoring method for hydraulic spring operating mechanism, storage medium and mechanism Download PDFInfo
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- CN117457434A CN117457434A CN202311592843.0A CN202311592843A CN117457434A CN 117457434 A CN117457434 A CN 117457434A CN 202311592843 A CN202311592843 A CN 202311592843A CN 117457434 A CN117457434 A CN 117457434A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 144
- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000002637 fluid replacement therapy Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004146 energy storage Methods 0.000 claims abstract description 58
- 238000002347 injection Methods 0.000 claims abstract description 47
- 239000007924 injection Substances 0.000 claims abstract description 47
- 230000009471 action Effects 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000000737 periodic effect Effects 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 18
- 230000001502 supplementing effect Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 4
- 238000001802 infusion Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention belongs to the technical field of power transmission and transformation equipment, and discloses a method for monitoring frequent fluid replacement of a hydraulic spring operating mechanism, which comprises the steps of firstly, obtaining single power-obtaining driving time t of an oiling motor, obtaining operation times S of a switching mechanism based on the action times of a breaking auxiliary switch in t, and judging that the hydraulic spring operating mechanism is in a frequent fluid replacement state based on t and S; secondly, acquiring an environmental temperature difference value as a period temperature difference value in a preset monitoring period; acquiring the oil injection times of the pressurizing oil injection pump and taking the oil injection times as the periodical oil injection times; and acquiring the operation times of the switch mechanism as the operation times of the periodic mechanism, establishing an equivalent energy storage time model again, acquiring an equivalent energy storage time M, finally comparing the M with a preset energy storage time range, and judging the frequent fluid replacement state of the hydraulic spring operation mechanism based on a comparison conclusion. The invention also discloses a frequent fluid replacement monitoring storage medium, a frequent fluid replacement monitoring electronic device and a matched hydraulic spring operating mechanism.
Description
Technical Field
The invention belongs to the technical field of power transmission and transformation equipment, and particularly relates to a frequent fluid replacement monitoring method, a storage medium and a mechanism of a hydraulic spring operating mechanism.
Background
The operating mechanism is a core element of the circuit breaker and is used for driving the circuit breaker body to perform opening (opening) and closing (closing) operations. The hydraulic operating mechanism has the advantages of high power, quick response, stable action, adjustable speed and the like, and is widely applied to the switching fields of high voltage, ultrahigh voltage and ultrahigh voltage grades. The disc spring hydraulic operating mechanism has the advantages of small external dimension, small influence of ambient temperature, high action stability and the like, and becomes an important development direction of the hydraulic operating mechanism.
The hydraulic operation mechanism of the disc spring drives the pressing oil injection pump through the oil injection motor to do work on oil in the built-in hydraulic energy storage component and press and compress the combined disc spring, so that energy storage of the hydraulic operation mechanism of the disc spring is realized, when an opening/closing instruction is received, the oil in the hydraulic energy storage component releases internal energy through a switching function of a related control valve in the system, so that the breaker body is driven to finish opening/closing operation, and the hydraulic energy storage component inevitably generates internal leakage during use, so that the energy charging of the hydraulic operation mechanism of the disc spring is reduced, namely, the opening/closing operation of the breaker body cannot be effectively and reliably completed due to insufficient energy storage, so that in order to ensure that the energy charging of the hydraulic operation mechanism of the disc spring is always kept within a preset energy charging range, the hydraulic detection device is built in the hydraulic operation mechanism of the disc spring, and when the insufficient energy charging of the hydraulic operation mechanism of the disc spring is detected, the motor is electrified and started by the system, so that the pressing oil injection pump is driven to supplement oil in the hydraulic energy storage component in time, and the energy charging range of the hydraulic operation mechanism of the disc spring is stopped when the energy charging operation mechanism of the disc spring is stopped within the preset energy charging range.
However, if the number of times of oil filling pump oil filling to the hydraulic energy storage component exceeds the normal number of times of auxiliary switch action (the auxiliary switch action is synchronously coupled with the breaker body to complete the opening/closing operation) by a certain number of times in a preset working period, the operation is defined as frequent pressing, the frequent pressing is one of the most common faults of the hydraulic operating mechanism in the field operation process, a part of slight internal leakage problem is not worsened, even the frequent pressing caused by repeated pressing or opening/closing operation can be automatically eliminated, most of internal leakage is more serious, finally, the sealing failure of the hydraulic mechanism, the failure of the hydraulic system to keep pressure, the burning out of the energy storage motor and other faults are caused, the serious consequences of the temporary stop and maintenance of the breaker are caused, in order to solve the problem of frequent pressing, whether the frequent pressing occurs or not is judged by monitoring the comparison result of the electricity obtaining number of the oil filling motor and the preset frequent pressing threshold value, and once the frequent pressing occurs, the relevant professional maintainer is immediately informed to stop the field to carry out inspection and maintenance on the relevant components, and the faults are eliminated.
However, in specific practice, this embodiment is too "cut-off" because the internal energy of the oil in the hydraulic energy storage component is also related to the temperature of the environment, and therefore this embodiment is more "misjudged" at more times, resulting in a run-off of professional maintenance personnel to the site, especially a downtime check, which in turn results in a loss of the associated costs, also meaning an increased unnecessary safety risk.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the frequent fluid replacement monitoring method, the storage medium and the mechanism of the hydraulic spring operating mechanism, which comprehensively consider the influence of the environmental temperature on the hydraulic spring operating mechanism, thereby more accurately monitoring and judging frequent pressing and avoiding misjudgment caused by frequent pressing due to temperature change.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the frequent fluid replacement monitoring method of the hydraulic spring operating mechanism, the hydraulic spring operating mechanism stores the fluid pressure energy through pressing the oil injection pump, the pressing oil injection pump is driven by the oil injection motor, the hydraulic spring operating mechanism drives the breaking or closing operation of the medium-high voltage circuit switching mechanism through the hydraulic energy, and the breaking or closing operation and the breaking auxiliary switch synchronously act in a linkage way, the method is characterized by comprising the following steps:
step S1: acquiring single power-on driving time t of the oiling motor, and acquiring the operation times S of the switching mechanism based on the action times of the breaking auxiliary switch in t;
step S2: when s=0 and t > t2, or when s=1 and t > t3, determining that the hydraulic spring operating mechanism is in a frequent fluid replacement state, wherein t2< t3;
step S3: acquiring an ambient temperature difference value in a preset monitoring period and taking the ambient temperature difference value as a period temperature difference value; acquiring the oil injection times of the pressurizing oil injection pump and taking the oil injection times as the periodical oil injection times; acquiring the operation times of a switching mechanism as the operation times of a periodic mechanism;
step S4: the equivalent energy storage frequency model is established as follows:
m is equivalent energy storage times (rounding downwards), K is a preset temperature difference interference coefficient, K1 is a preset temperature difference value, delta K is a periodic temperature difference value, X is periodic oiling times, and Y is periodic mechanism operation times;
step S5: and (3) comparing M with a preset energy storage frequency range, and judging the frequent fluid replacement state of the hydraulic spring operating mechanism based on a comparison conclusion, wherein the judging process is as follows:
step S5-1: when M is less than or equal to N1, judging that the hydraulic spring operating mechanism is in a non-frequent fluid supplementing state, and when M is more than N2, judging that the hydraulic spring operating mechanism is in a frequent fluid supplementing state;
step S5-2: when N1 is less than or equal to N2, taking the ending time point of the preset monitoring period as the starting time point of the new preset monitoring period, repeating the steps S1-S4 twice, and taking the acquired M as M1 and M2 respectively;
when M1 is less than or equal to N1 or M2 is less than or equal to N1, judging that the hydraulic spring operating mechanism is in a non-frequent fluid supplementing state;
when M1 is more than N2 or M2 is more than N2, the hydraulic spring operating mechanism is judged to be in a frequent fluid supplementing state;
step S5-3: when N1 is less than or equal to N2 and M1 is less than or equal to N2, judging that the hydraulic spring operating mechanism is in a frequent fluid infusion state, otherwise, taking M1 as a new M and repeating the step S5-2;
wherein N1 and N2 are respectively the lower limit value and the upper limit value of the preset energy storage frequency range.
Preferably, the operation of the single switching mechanism and the number of actions of the breaking auxiliary switch have four corresponding cases: 1. the brake separating operation is carried out, and the auxiliary switch is separated for one time in the duration of a preset operation interval; 2. closing operation, namely dividing the auxiliary switch into actions once in a preset operation interval time; 3. reclosing operation, namely dividing the auxiliary switch into three times in a preset operation interval time; 4. and the closing and opening operation is performed for two times corresponding to the time period of the preset operation interval.
Preferably, the whole process of use of the hydraulic spring operating mechanism is constituted by a plurality of consecutive predetermined monitoring cycles, and the predetermined monitoring cycle is 1 day (24 hours).
The frequent fluid replacement monitoring storage medium is stored with a frequent fluid replacement monitoring program, and is characterized in that the frequent fluid replacement monitoring method of the hydraulic spring operating mechanism is realized when the frequent fluid replacement monitoring program is executed by the processor.
Frequent fluid replacement monitoring electron device, with hydraulic spring operating device signal coupling, its characterized in that includes: the control part comprises a processor, a memory and a processing program stored in the memory, wherein the processing program comprises the frequent fluid replacement monitoring program, a ring temperature signal interface, a first counting signal interface, a second counting signal interface and a motor current signal interface, the ring temperature signal interface is used for receiving an ambient temperature data signal, the first counting signal interface is used for receiving the counting data signal of the breaking auxiliary switch action times, the second counting signal interface is used for receiving the counting data signal of the oiling motor which is started by electricity, and the motor current signal interface is used for receiving the current data signal of the oiling motor.
The utility model provides a hydraulic spring operating mechanism, includes above-mentioned frequent fluid replacement monitoring electron device, its characterized in that still includes: the oil feeding part is used for injecting oil into the energy storage part, the oil feeding part is provided with an oiling motor, a second counter and a motor current sensor are electrically connected to the oiling motor, the second counter detects the power-on times of the oiling motor and sends out corresponding counting data signals, the energy storage part comprises an energy storage disc spring and an energy storage cylinder which are coupled, a temperature and humidity sensor is arranged on the energy storage cylinder, the temperature and humidity sensor detects the ambient temperature and sends out the ambient temperature data signals, the control valve part is used for controlling the energy storage part to be communicated with or disconnected from the mechanism output part, the mechanism output part is provided with an output piston rod which is coupled with an external breaker, a breaking auxiliary switch which is in linkage with the breaker is arranged on the output piston rod, the breaking auxiliary switch is connected with a first counter in series, and the first counter detects the action times of the auxiliary switch and sends out corresponding counting data signals.
Further, the invention also comprises a displacement transmission mechanism and a rotation transmission mechanism, wherein the end part of the output piston rod is provided with a dual-purpose coupling entity, a sliding straight groove is formed on the dual-purpose coupling entity, the displacement transmission mechanism comprises a resistance displacement sensor arranged near the output piston rod, a movable part of the resistance displacement sensor is fixedly arranged on the dual-purpose coupling entity, the rotation transmission mechanism comprises a rotary encoder and a linkage crank rod which are arranged near the output piston rod, one end of the linkage crank rod is fixedly arranged on an output rotating shaft of the rotary encoder, the other end of the linkage crank rod is provided with a sliding convex column matched with the sliding straight groove, and the output piston rod enables the dual-purpose coupling entity to drive the movable part of the resistance displacement sensor to move relative to the resistance displacement sensor through action.
Compared with the prior art, the invention has the beneficial effects that:
1. because the frequent fluid replacement monitoring method of the hydraulic spring operating mechanism comprises the steps of firstly, obtaining single power-on driving time t of an oiling motor, obtaining operation times S of a switching mechanism based on the action times of a breaking auxiliary switch in t, and judging that the hydraulic spring operating mechanism is in a frequent fluid replacement state based on t and S; secondly, acquiring an environmental temperature difference value as a period temperature difference value in a preset monitoring period; acquiring the oil injection times of the pressurizing oil injection pump and taking the oil injection times as the periodical oil injection times; the method comprises the steps of obtaining the operation times of a switching mechanism as the operation times of a periodic mechanism, establishing an equivalent energy storage time model again, obtaining an equivalent energy storage time M, finally comparing the M with a preset energy storage time range, and judging the frequent fluid infusion state of the hydraulic spring operating mechanism based on a comparison conclusion.
2. Because the operation of the single switch mechanism and the action times of the breaking auxiliary switch have four corresponding conditions: 1. the brake separating operation is carried out, and the auxiliary switch is separated for one time in the duration of a preset operation interval; 2. closing operation, namely dividing the auxiliary switch into actions once in a preset operation interval time; 3. reclosing operation, namely dividing the auxiliary switch into three times in a preset operation interval time; 4. the switching-on and switching-off operation corresponds to the separation of the auxiliary switch actions twice within the duration of the preset operation interval, so that the invention strictly corresponds to the actions of all the switching-off auxiliary switches and the operation of the single switching mechanism, thereby taking the two abnormal switching-on/switching-off operations of the switching-on and switching-off operation into the judgment consideration of frequent pressing, and further monitoring and judging the frequent pressing.
3. The invention also discloses a hydraulic spring operating mechanism, which comprises an oil feeding part, an energy storage part, a control valve part and a mechanism output part, wherein the oil feeding part is communicated with an oil passage, the oil feeding part is used for injecting oil into the energy storage part, the oil feeding part is provided with an oiling motor, the oiling motor is electrically connected with a second counter and a motor current sensor, the second counter detects the power-on times of the oiling motor and sends out corresponding counting data signals, the energy storage part comprises an energy storage disc spring and an energy storage cylinder which are coupled, the energy storage cylinder is provided with a temperature and humidity sensor, the temperature and humidity sensor detects the ambient temperature and sends out the ambient temperature data signals, the control valve part is used for controlling the connection or disconnection of the energy storage part and the mechanism output part, the mechanism output part is provided with an output piston rod which is coupled with the output of an external breaker, the output piston rod is provided with a breaking auxiliary switch which is linked with the breaker, and the breaking auxiliary switch is connected with a first counter in series, and the first counter detects the action times of the auxiliary switch and sends out corresponding counting data signals.
4. Because the hydraulic spring operating mechanism further comprises a displacement transmission mechanism and a rotation transmission mechanism, the end part of the output piston rod is provided with the dual-purpose coupling entity, the dual-purpose coupling entity is provided with the sliding straight groove, the displacement transmission mechanism comprises the resistance displacement sensor arranged near the output piston rod, the movable part of the resistance displacement sensor is fixedly arranged on the dual-purpose coupling entity, the rotation transmission mechanism comprises the rotary encoder and the linkage crank rod which are arranged near the output piston rod, one end of the linkage crank rod is fixedly arranged on the output rotating shaft of the rotary encoder, the other end of the linkage crank rod is provided with the sliding convex column matched with the sliding straight groove, and the output piston rod enables the dual-purpose coupling entity to drive the movable part of the resistance displacement sensor to move relative to the resistance displacement sensor and rotate relative to the rotary encoder through action.
Drawings
FIG. 1 is a schematic diagram of steps of a method for monitoring frequent fluid replacement of a hydraulic spring operating mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of a disc spring hydraulic actuator in an embodiment of the invention;
FIG. 3 is a schematic diagram illustrating an assembly of a displacement transmission mechanism, a rotation transmission mechanism and a mechanism output portion according to an embodiment of the present invention;
fig. 4 is a second schematic diagram of assembly of the displacement transmission mechanism, the rotation transmission mechanism and the mechanism output part in the embodiment of the invention.
In the figure: 100. 10, an oil feeding part, 11, an oil feeding container, 12, an oiling motor, 121, a second counter, 122, a motor current sensor, 20, an energy storage part, 21, an energy storage disc spring, 22, an energy storage cylinder, 221, a temperature and humidity sensor, 30, a control valve part, 40, a mechanism output part, 41, a piston cylinder body, 411, a guide groove plate, 42, an output piston rod, 421, a breaking auxiliary switch, 4211, a first counter, 43, a dual-purpose coupling entity, 431, a sliding straight groove, 50, a resistance displacement sensor, 61, a rotary encoder, 62, a linkage crank rod, 621 and a sliding convex column.
Detailed Description
In order to make the technical means, creation features, achievement of objects and effects achieved by the present invention easy to understand, the following embodiments specifically describe the method, storage medium and mechanism for monitoring frequent fluid replacement of a hydraulic spring operating mechanism of the present invention with reference to the accompanying drawings, and it should be noted that the description of these embodiments is for aiding understanding of the present invention, but not limiting the present invention.
As shown in fig. 1, in the frequent fluid replacement monitoring method S100 of the hydraulic spring operating mechanism in this embodiment, the hydraulic spring operating mechanism stores hydraulic energy by pressing the oil injection pump, the oil injection pump is driven by the oil injection motor, the hydraulic spring operating mechanism drives the breaking or closing operation of the medium-high voltage circuit switching mechanism by hydraulic energy, and the breaking or closing operation and the breaking auxiliary switch are synchronously linked.
The method S100 for monitoring the frequent fluid replacement of the hydraulic spring operating mechanism comprises the following steps:
step S1: and acquiring single power-on driving time t of the oiling motor, and acquiring the operation times S of the switching mechanism based on the action times of the breaking auxiliary switch in t.
Specifically, the single power-on driving time t is the duration of the process that the oiling motor is started up to drive the pressurizing and oiling pump to supplement liquid, and the operation of the single switching mechanism and the action times of the breaking auxiliary switch have four corresponding conditions:
1. the brake separating operation is carried out, and the auxiliary switch is separated for one time in the duration of a preset operation interval;
2. closing operation, namely dividing the auxiliary switch into actions once in a preset operation interval time;
3. reclosing operation, namely dividing the auxiliary switch into three times in a preset operation interval time;
4. and the closing and opening operation is performed for two times corresponding to the time period of the preset operation interval.
The preset operation interval is far smaller than the single power-on driving time t, so that the two abnormal opening/closing operations of reclosing operation and closing operation can be accurately judged, and erroneous judgment is avoided.
Step S2: when s=0 and t > t2, or when s=1 and t > t3, it is determined that the hydraulic spring operating mechanism is in a frequent fluid replacement state, where t2< t3.
Step S3: acquiring an ambient temperature difference value in a preset monitoring period and taking the ambient temperature difference value as a period temperature difference value; acquiring the oil injection times of the pressurizing oil injection pump and taking the oil injection times as the periodical oil injection times; the number of operations of the switching mechanism is obtained as the number of operations of the periodic mechanism.
Specifically, the whole use process of the hydraulic spring operating mechanism is composed of a plurality of continuous preset monitoring periods, the preset monitoring periods are 1 day (24 hours), the oil injection times of the pressing oil injection pump are the power-on starting times of the oil injection motor, and the operation times of the switching mechanism can be obtained through the corresponding relation of the action times of the breaking auxiliary switch in the step S1.
Step S4: the equivalent energy storage frequency model is established as follows:
m is equivalent energy storage times (rounding downwards), K is a preset temperature difference interference coefficient, K1 is a preset temperature difference value, delta K is a periodic temperature difference value, X is periodic oiling times, and Y is periodic mechanism operation times.
Step S5: comparing M with a preset energy storage frequency range, wherein N1 and N2 are respectively the lower limit value and the upper limit value of the preset energy storage frequency range, and judging the frequent fluid replacement state of the hydraulic spring operating mechanism based on the comparison conclusion, wherein the judging process is as follows:
step S5-1: when M is less than or equal to N1, the hydraulic spring operating mechanism is judged to be in a non-frequent fluid supplementing state, and when M is more than N2, the hydraulic spring operating mechanism is judged to be in a frequent fluid supplementing state.
Step S5-2: when "N1< m+.n2", the ending time point of the predetermined monitoring period is taken as the starting time point of the new predetermined monitoring period, the steps S1-S4 are repeated twice, the acquired M is taken as M1, M2 respectively, specifically, the step S5-2 is the case except for the step S5-1 accident, and the current predetermined monitoring period and the equivalent energy storage times of two consecutive predetermined monitoring periods immediately following in sequence are taken as M1, M2 and M3 respectively.
When M1 is less than or equal to N1 or M2 is less than or equal to N1, the hydraulic spring operating mechanism is judged to be in a non-frequent fluid supplementing state.
When M1 is greater than N2 or M2 is greater than N2, the hydraulic spring operating mechanism is judged to be in a frequent fluid supplementing state.
Step S5-3: when N1 is less than or equal to N2 and N1 is less than or equal to M2 and M1 is less than or equal to N2, the hydraulic spring operating mechanism is judged to be in a frequent fluid infusion state, otherwise, M1 is taken as a new M, and the step S5-2 is repeated.
The frequent fluid replacement monitoring storage medium is stored with a frequent fluid replacement monitoring program, and the frequent fluid replacement monitoring method of the hydraulic spring operating mechanism is realized when the frequent fluid replacement monitoring program is executed by the processor.
The frequent fluid replacement monitoring electronic device is in signal coupling with the hydraulic spring operating mechanism and comprises a control part, a ring temperature signal interface, a first counting signal interface, a second counting signal interface and a motor current signal interface.
The control section includes a processor, a memory, and a processing program stored in the memory, the processing program including the frequent fluid replacement monitoring program described above.
The ring temperature signal interface is used for receiving an ambient temperature data signal, the first counting signal interface is used for receiving the counting data signal of the breaking auxiliary switch action times, the second counting signal interface is used for receiving the counting data signal of the oil injection motor which is started by electricity, and the motor current signal interface is used for receiving the current data signal of the oil injection motor.
The frequent fluid replacement monitoring program of the processing program calculates the operation times of the switching mechanism according to the operation times of the breaking auxiliary switch received from the first counting signal interface in a preset operation interval, specifically, when the operation times of the breaking auxiliary switch received from the first counting signal interface in the preset operation interval are 1, 2 or 3 times, the operation times of the switching mechanism are all 1 time, because:
the operation of the single switch mechanism and the action times of the breaking auxiliary switch have four corresponding conditions:
1. the brake separating operation is carried out, and the auxiliary switch is separated for one time in the duration of a preset operation interval;
2. closing operation, namely dividing the auxiliary switch into actions once in a preset operation interval time;
3. reclosing operation, namely dividing the auxiliary switch into three times in a preset operation interval time;
4. and the closing and opening operation is performed for two times corresponding to the time period of the preset operation interval.
As shown in fig. 2, a hydraulic spring operating mechanism 100 includes the above-described frequent fluid replacement monitoring electronic device, and further includes an oil supply portion 10, an energy storage portion 20, a control valve portion 30, and a mechanism output portion 40 that are in oil-way communication with each other.
The oil feed portion 10 is used for injecting oil into the accumulator portion 20, and the control valve portion 30 is used for controlling the connection or disconnection of the accumulator portion 20 and the mechanism output portion 40.
The oil feeding portion 10 includes an oil feeding container 11, an oil injection motor 12, and a pressurizing oil injection pump (not shown in the drawings), and when the oil injection motor 12 receives an external predetermined signal, the oil injection motor 12 pressurizes oil injection from the oil feeding container 11 to the energy storage portion 20 by the pressurizing oil injection pump.
The oiling motor 12 is electrically connected with a second counter 121 and a motor current sensor 122.
The second counter 121 detects the number of times of power-on start of the oiling motor 12 through the motor current sensor 122 and emits a corresponding count data signal, and specifically, the second counter 121 acquires the number of times of power-on start of the oiling motor 12 by counting predetermined detection data detected by the motor current sensor 122.
The accumulator 20 comprises an accumulator disc spring 21 and an accumulator cylinder 22 coupled,
the energy storage cylinder 22 is a piston cylinder, the energy storage disc spring 21 is coupled with a piston rod (not shown in the drawing) of the energy storage cylinder 22, the energy storage cylinder 22 is communicated with the output end of the pressurizing oil injection pump, a temperature and humidity sensor 221 is arranged on the energy storage cylinder 22, and the temperature and humidity sensor 221 is used for detecting the ambient temperature and sending out an ambient temperature data signal.
The control valve portion 30 includes a plurality of control valves (not shown in the drawings).
The mechanism output unit 40 includes a piston cylinder 41, an output piston rod 42, and a dual-purpose coupling body 43.
The piston cylinder 41 is in oil-line communication with the control valve portion 30.
The output piston rod 42 is movably disposed within the piston cylinder 41, and the output piston rod 42 is output-coupled with an external circuit breaker (including a circuit breaker body and a mechanism, hereinafter the same), specifically, the circuit breaker is an object mechanism to be operated.
As shown in fig. 3 and 4, the output piston rod 42 is provided with a breaking auxiliary switch 421 linked with the circuit breaker through a secondary circuit, the breaking auxiliary switch 421 is connected in series with a first counter 4211, and the first counter 4211 is used for detecting the action times of the breaking auxiliary switch 421 and sending out corresponding counting data signals, specifically, the breaking auxiliary switch 421 is electrically connected with the circuit breaker through the secondary circuit.
The piston cylinder 41 further comprises a guiding slot plate 411 fixed to and facing the external circuit breaker, the guiding slot plate 411 having a guiding straight slot (not shown in the drawings).
The dual-purpose coupling body 43 is provided at an end of the output piston rod 42 coupled with the outside, and a sliding straight groove 431 is formed on the dual-purpose coupling body 43, and a protruding structure (not shown in the drawing) is further provided at a side of the dual-purpose coupling body 43 to be engaged with the guiding straight groove, so that the guiding straight groove moves the dual-purpose coupling body 43 along the straight line guiding.
The displacement transmission mechanism comprises a resistance displacement sensor 50 arranged near the output piston rod 42, wherein a movable part of the resistance displacement sensor 50 is fixedly arranged on the dual-purpose coupling entity 43, specifically, the resistance displacement sensor 50 comprises a fixed rod piece fixedly arranged on the piston cylinder 41, and the movable part of the resistance displacement sensor 50 is movably arranged on the fixed rod piece.
The rotary transmission mechanism comprises a rotary encoder 61 and a linkage crank rod 62 which are arranged near the output piston rod 42, one end of the linkage crank rod 62 is fixedly arranged on an output rotating shaft of the rotary encoder 61, a sliding convex column 621 which is matched with a sliding straight groove 431 is formed at the other end of the linkage crank rod 62, the output piston rod 42 enables the dual-purpose coupling entity 43 to drive the movable piece of the resistance displacement sensor 50 to move relative to the resistance displacement sensor through action, the rotary encoder 61 rotates, and therefore the mechanical characteristics of the hydraulic spring operation mechanism 100 are obtained, and particularly, when the output piston rod 42 moves, the output piston rod moves in a guiding straight line through the guiding straight groove to drive the movable piece of the resistance displacement sensor 50 to move relative to the resistance displacement sensor; meanwhile, the body of the rotary encoder 61 is fixedly arranged on the piston cylinder 41, and the sliding convex column 621 moves in the sliding straight groove 431 in a matched manner by the movement of the coupling entity 43, so that the linkage crank rod 62 forms crank rotation relative to the rotary encoder 61, and the rotating shaft of the rotary encoder 61 is driven to rotate.
The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications or variations which may be made by those skilled in the art without the inventive effort within the scope of the appended claims remain within the scope of this patent.
Claims (7)
1. The method for monitoring the frequent fluid replacement of the hydraulic spring operating mechanism is characterized in that the hydraulic spring operating mechanism stores fluid pressure energy through a pressurizing oil injection pump, the pressurizing oil injection pump is driven by an oil injection motor, the hydraulic spring operating mechanism drives the breaking or closing operation of a medium-high voltage circuit switching mechanism through the hydraulic energy, and the breaking or closing operation and a breaking auxiliary switch are synchronously linked, and the method is characterized by comprising the following steps:
step S1: acquiring single power-on driving time length t of the oiling motor, and acquiring operation times S of a switching mechanism based on the action times of the breaking auxiliary switch in t;
step S2: when s=0 and t > t2, or when s=1 and t > t3, determining that the hydraulic spring operating mechanism is in a frequent fluid replacement state, wherein t2< t3;
step S3: acquiring an ambient temperature difference value in a preset monitoring period and taking the ambient temperature difference value as a period temperature difference value; acquiring the oil injection times of the pressing oil injection pump and taking the oil injection times as periodic oil injection times; acquiring the operation times of a switching mechanism as the operation times of a periodic mechanism;
step S4: the equivalent energy storage frequency model is established as follows:
m is equivalent energy storage times (rounding downwards), K is a preset temperature difference interference coefficient, K1 is a preset temperature difference value, delta K is the periodic temperature difference value, X is the periodic oiling times, and Y is the periodic mechanism operation times;
step S5: and (3) comparing M with a preset energy storage frequency range, and judging the frequent fluid replacement state of the hydraulic spring operating mechanism based on a comparison conclusion, wherein the judging process is as follows:
step S5-1: when M is less than or equal to N1, judging that the hydraulic spring operating mechanism is in a non-frequent fluid supplementing state, and when M is more than N2, judging that the hydraulic spring operating mechanism is in a frequent fluid supplementing state;
step S5-2: when N1 is less than or equal to N2, taking the ending time point of the preset monitoring period as the starting time point of a new preset monitoring period, repeating the steps S1-S4 twice, and taking the acquired M as M1 and M2 respectively;
when M1 is less than or equal to N1 or M2 is less than or equal to N1, judging that the hydraulic spring operating mechanism is in a non-frequent fluid supplementing state;
when M1 is more than N2 or M2 is more than N2, the hydraulic spring operating mechanism is judged to be in a frequent fluid supplementing state;
step S5-3: when N1 is less than or equal to N2 and M1 is less than or equal to N2, judging that the hydraulic spring operating mechanism is in a frequent fluid infusion state, otherwise, taking M1 as a new M and repeating the step S5-2;
wherein N1 and N2 are respectively the lower limit value and the upper limit value of the preset energy storage frequency range.
2. The method for monitoring frequent fluid replacement of a hydraulic spring operating mechanism according to claim 1, wherein:
the operation of the switch mechanism and the action times of the breaking auxiliary switch are in four corresponding conditions:
1. the breaking auxiliary switch is operated for one time in a preset operation interval time;
2. switching-on operation, wherein the breaking auxiliary switch acts for one time in a preset operation interval time;
3. reclosing operation, wherein the breaking auxiliary switch acts for three times in the preset operation interval time;
4. and (3) switching on and off, wherein the switching-off auxiliary switch acts twice in the duration of a preset operation interval.
3. The method for monitoring frequent fluid replacement of a hydraulic spring operating mechanism according to claim 1, wherein:
wherein the whole process of using the hydraulic spring operating mechanism is composed of a plurality of continuous predetermined monitoring periods, and the predetermined monitoring period is 1 day (24 hours).
4. The frequent fluid replacement monitoring storage medium having a frequent fluid replacement monitoring program stored thereon, wherein the frequent fluid replacement monitoring program, when executed by a processor, implements the frequent fluid replacement monitoring method of the hydraulic spring operating mechanism of any one of claims 1 to 3.
5. The frequent fluid replacement monitoring electronic device is in signal coupling with the hydraulic spring operating mechanism, and is characterized by comprising:
a control section including a processor, a memory, and a processing program stored on the memory, the processing program including the frequent fluid replacement monitoring program according to claim 4,
a ring temperature signal interface, a first counting signal interface, a second counting signal interface and a motor current signal interface,
the ring temperature signal interface is used for receiving an ambient temperature data signal, the first counting signal interface is used for receiving a counting data signal of the breaking auxiliary switch action times according to any one of claims 1-3, the second counting signal interface is used for receiving a counting data signal of the oiling motor which is started by electricity according to any one of claims 1-3, and the motor current signal interface is used for receiving a current data signal of the oiling motor according to any one of claims 1-3.
6. A hydraulic spring operator comprising the frequent fluid replacement monitoring electronic device of claim 5, further comprising:
an oil supply part, an energy storage part, a control valve part and a mechanism output part which are communicated with each other through oil paths,
the oil feeding part is used for injecting oil into the energy storage part,
the oil feeding part is provided with the oil injection motor, the oil injection motor is electrically connected with a second counter and a motor current sensor, the second counter detects the power-on times of the oil injection motor and sends out corresponding counting data signals,
the energy storage part comprises an energy storage disc spring and an energy storage cylinder which are coupled, a temperature and humidity sensor is arranged on the energy storage cylinder, the temperature and humidity sensor detects the ambient temperature and sends out the ambient temperature data signal,
the control valve part is used for controlling the connection or disconnection of the energy storage part and the mechanism output part,
the mechanism output part is provided with an output piston rod which is coupled with the output of an external breaker, the output piston rod is provided with a breaking auxiliary switch which is linked with the breaker, the breaking auxiliary switch is connected with a first counter in series, and the first counter detects the action times of the auxiliary switch and sends out corresponding counting data signals.
7. The hydraulic spring operated mechanism of claim 6, further comprising:
a displacement transmission mechanism and a rotation transmission mechanism,
the end part of the output piston rod is provided with a dual-purpose coupling entity, a sliding straight groove is formed on the dual-purpose coupling entity,
the displacement transmission mechanism comprises a resistance displacement sensor arranged near the output piston rod, a movable part of the resistance displacement sensor is fixedly arranged on the dual-purpose coupling entity,
the rotary transmission mechanism comprises a rotary encoder and a linkage crank rod, wherein the rotary encoder and the linkage crank rod are arranged near the output piston rod, one end of the linkage crank rod is fixedly arranged on an output rotating shaft of the rotary encoder, the other end of the linkage crank rod is provided with a sliding convex column matched with a sliding straight groove,
the output piston rod enables the dual-purpose coupling entity to drive the movable piece of the resistance displacement sensor to move relative to the resistance displacement sensor and the rotary encoder to rotate through action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311592843.0A CN117457434A (en) | 2023-11-27 | 2023-11-27 | Frequent fluid replacement monitoring method for hydraulic spring operating mechanism, storage medium and mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311592843.0A CN117457434A (en) | 2023-11-27 | 2023-11-27 | Frequent fluid replacement monitoring method for hydraulic spring operating mechanism, storage medium and mechanism |
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| CN117457434A true CN117457434A (en) | 2024-01-26 |
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| CN202311592843.0A Pending CN117457434A (en) | 2023-11-27 | 2023-11-27 | Frequent fluid replacement monitoring method for hydraulic spring operating mechanism, storage medium and mechanism |
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| CN (1) | CN117457434A (en) |
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