CN109344973B - Method for quickly discriminating asynchronous motion defect of mechanical brake pawl - Google Patents
Method for quickly discriminating asynchronous motion defect of mechanical brake pawl Download PDFInfo
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- CN109344973B CN109344973B CN201810929587.2A CN201810929587A CN109344973B CN 109344973 B CN109344973 B CN 109344973B CN 201810929587 A CN201810929587 A CN 201810929587A CN 109344973 B CN109344973 B CN 109344973B
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Abstract
The invention provides a method for quickly discriminating the defect of asynchronous action of a mechanical brake claw. The method comprises the following steps: firstly, collecting switching value records of a mechanical brake claw of specified equipment in a specified historical period, and sorting according to recording time after eliminating repeated switching value records in the switching value records; screening out the switching value records of the mechanical brake claw in the operation time period, sequentially calculating the interval time of each switching value record of the same state record, and finally using the interval time with the maximum value and the threshold valueδ 0 Make a comparison iffGreater than a threshold valueδ 0 When the brake is needed, the mechanical brake claw of the equipment is inspected and maintained, if so, the mechanical brake claw is inspected and maintainedfIs not greater than the thresholdδ 0 In time, the mechanical brake claw of the equipment does not need to be checked and maintained. The invention quickly acquires the interval time difference of the asynchronous actions of the mechanical brake claws from the switching value record of the mechanical brake claws of the specified equipment in the specified historical period, and provides technical support for operation and maintenance personnel to identify the asynchronous action phenomenon of the mechanical brake claws of the equipment, locate defects, track defects and eliminate defects in advance.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a method for quickly discriminating the defect of asynchronous actions of a mechanical brake claw.
Background
According to the invention, the time interval difference of different actions of the mechanical brake claw is rapidly acquired from the switching value record of the mechanical brake claw of the specified equipment in the specified historical period, and an important technical support is provided for screening the defect of asynchronous actions of the mechanical brake claw.
The recorded data of the switch quantity of the action of the mechanical brake claw is huge. In the past, due to the lack of an effective error correction method, a method of selecting points randomly and selecting points in an equal sampling period is mostly adopted to select data 'representative' for analysis. Therefore, the obtained analysis result is not comprehensive, and the engineering technical significance of the analysis result is not strong.
The record of the switching value of the mechanical brake claw action has more abnormal switching value records caused by equipment maintenance. Meanwhile, the switching value records in the input state and the exit state need to be separately and respectively analyzed, so that the asynchronous action condition in the two states can be obtained. Making it extremely difficult to perform a batch analysis of the record of the amount of opening and closing of the mechanical brake-pawl action. The defect that the mechanical brake claw does not synchronously move is rapidly discriminated by operators, and great difficulty is brought.
The invention combines engineering experience, fully considers the characteristic of recording the switching value of the mechanical brake claw action, standardizes the past manual processing work, and hands the work to a computer for completion, thereby realizing automatic detection and control depending on the tedious work of manual processing for a long time. The invention provides technical support for operation and maintenance personnel to identify the phenomenon of asynchronous movement of the mechanical brake claw of the equipment, defect positioning, defect tracking and defect eliminating in advance.
Disclosure of Invention
The invention aims to provide a method for quickly discriminating the defect of the asynchronous action of a mechanical brake claw, which is used for quickly acquiring the interval time difference of different actions of the mechanical brake claw from the switching value record of the mechanical brake claw of specified equipment in a specified historical period and providing technical support for operation and maintenance personnel to identify the phenomenon of the asynchronous action of the mechanical brake claw of the equipment, defect positioning, defect tracking and defect eliminating in advance.
The purpose of the invention is realized by at least one of the following technical solutions.
The invention discloses a method for quickly discriminating the defect of asynchronous actions of a mechanical brake claw, which comprises the following steps:
step 1, collecting switching value records V of mechanical brake claws of specified equipment in specified historical period 0 Record V on the amount of switching 0 Sequencing according to the time record sequence and taking the unrepeated switching value record to obtain a switching value record V 1 ；
Step 2, according to the equipment maintenance record M, recording V from the switching value 1 Switching value record V of middle screening equipment in operation time period 2 Calculating the switching value record V 2 In the interval time T of the mechanical brake claw 2on And the interval time T between withdrawing the mechanical brake claw 2off ；
Step 3, using T 2on Interval time T with the largest mean value 2onmax With a threshold value delta on Making a comparison if T 2onmax Greater than a threshold value delta on When the brake is started, the input system of the mechanical brake pawl of the equipment is checked and maintained, and if T is reached 2onmax Not greater than threshold delta on In time, the mechanical brake claw of the equipment does not need to be checked and maintained;
step 4, using T 2off Interval time T with maximum median value 2offmax And a threshold value delta off Making a comparison if T 2offmax Greater than a threshold value delta off When the brake is in use, the withdrawing system of the mechanical brake claw of the equipment is checked and maintained, if T is reached 2offmax Not greater than threshold δ off In time, the mechanical brake claw of the equipment does not need to be checked and maintained.
Furthermore, the mechanical brake claw of the equipment can be put into the mechanical brake claw at any time and record the moment and the putting state of the mechanical brake claw at the moment through sending out the switch quantity when the mechanical brake claw is in the running state under normal conditions, and can also be withdrawn from the mechanical brake claw at any time and record the moment and the withdrawing state of the mechanical brake claw at the moment through sending out the switch quantity.
Further, the switching value includes two state records, which are respectively a "1" state record representing the input state and a "0" state record representing the exit state; the switching value record at least comprises three record contents, namely time record, state record and equipment description accurate to millisecond.
Further, the switching value in step 1 is recorded as V 1 Obtained by the following process:
step 11, recording the switching value V according to the sequence of the time recording from first to last 0 Sequencing to obtain a switching value record V 01 ；
Step 12, taking the switch value record V 01 The switching value record with non-repeated middle time record is composed of a switching value record V 1 。
Further, the equipment overhaul record M is composed of the start time of the overhaul work and the end time of the overhaul work.
Furthermore, the interval time T of putting the mechanical brake claw in the step 2 2on And the interval time T between withdrawing the mechanical brake claw 2off Obtained by the following steps:
step 21, setting i =1, and acquiring the group number n of the start and end time of the equipment maintenance work m If n is m If the value of (b) is not 0, go to step 22, if n is not 0 m If the value of (d) is 0, the switching value is recorded as V 1 And a switching value record V 2 For the same record, the switching value record V 2 The switching value of the medium state recorded as the input state is recorded as V 2oni Record of switching value V 2 The switching value of the medium state recorded as the exit state is recorded as V 2offi And proceeds to step 215;
step 22, recording V from the switching value 1 The obtained state is recorded as input stateA switch value record V with the state and time record earlier than the maintenance starting time of the ith group of equipment 2oni ；
Step 23, recording V from the switching value 1 A switching value record V of which the obtained state record is the exit state and the time record is earlier than the maintenance starting time of the i-th group of equipment 2offi ；
Step 24, if the switching value is recorded V 2oni If the number of the switches is more than 1, the switching value is recorded as V 2oni Middle serial numbers 1 to n 2oni Record of-1 as a set V 2oni1 Will record V 2oni Middle serial numbers 2 to n 2oni As another group V 2oni2 (ii) a Will record V 2oni2 And record V 2oni1 The difference value obtained after the time records with the same middle sequence number are differenced is the interval time T of throwing the mechanical brake claw in the time period i in the running state 2oni If the switching value is recorded as V 2oni Is not more than 1, the interval time T of putting into the mechanical brake claw in the running state time period i 2oni Is a null array;
step 25, recording V if the switch value 2offi If the number of the switches is more than 1, the switching value is recorded as V 2offi Middle serial numbers 1 to n 2offi Record of-1 as a set V 2offi1 Will record V 2offi Middle sequence number is 2 to n 2offi As another group V 2offi2 (ii) a Will record V 2offi2 And record V 2offi1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of quitting the mechanical brake claw in the running state time period i 2offi If the switching value is recorded as V 2offi Is not more than 1, the interval time T of quitting the mechanical brake claw in the running state period i 2offi Is a null array;
step 26, adding 1 to the value of i;
step 27, if n m >1 and i is less than or equal to n m If not, go to step 28, otherwise go to step 213;
step 28, recording V from the switching value 1 The switch with the obtained state record as the input state, the time record later than the overhaul finish time of the i-1 th group of equipment and the time record earlier than the overhaul start time of the i-th group of equipmentVolume record V 2oni ；
Step 29, recording V from the switch value 1 The obtained state record is an exit state, the time record is later than the overhaul finish time of the i-1 th group of equipment, and the time record is earlier than the switching value record V of the overhaul start time of the i-th group of equipment 2offi ；
Step 210, recording V if the switching value is recorded 2oni If the number of the switches is more than 1, the switching value is recorded as V 2oni Middle serial numbers 1 to n 2oni Record of-1 as a set V 2oni1 Will record V 2oni Middle serial numbers 2 to n 2oni As another group V 2oni2 (ii) a Will record V 2oni2 And record V 2oni1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of throwing into the mechanical brake claw in the running state time period i 2oni If the switching value is recorded as V 2oni Is not more than 1, the interval time T of throwing the mechanical brake claw in the running state time period i 2oni Is a null array;
step 211, if the switching value is recorded V 2offi If the number of the switches is more than 1, the switching value is recorded as V 2offi Middle serial numbers 1 to n 2offi Record of-1 as a set V 2offi1 Will record V 2offi Middle serial numbers 2 to n 2offi As another group V 2offi2 (ii) a Will record V 2offi2 And record V 2offi1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of quitting the mechanical brake claw in the running state time period i 2offi If the switching value is recorded as V 2offi Is not more than 1, the interval time T of quitting the mechanical brake claw in the running state period i 2offi Is a null array;
step 212, adding 1 to the value of i, and going to step 26;
step 213, recording V from the switching value 1 The obtained state record is the input state, and the time record is later than the nth m Switching value record V at the end of group equipment maintenance 2oni ；
Step 214, recording V from the switching value 1 The obtained state record is an exit state and the time record is later thanN th order m Switching value record V at the end of group equipment maintenance 2offi ；
Step 215, if the switching value is recorded V 2oni If the number of the switches is more than 1, the switching value is recorded as V 2oni Middle serial numbers 1 to n 2oni Record of-1 as a set V 2oni1 Will record V 2oni Middle serial numbers 2 to n 2oni As another group V 2oni2 (ii) a Will record V 2oni2 And record V 2oni1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of throwing into the mechanical brake claw in the running state time period i 2oni If the switching value is recorded as V 2oni Is not more than 1, the interval time T of throwing the mechanical brake claw in the running state time period i 2oni Is a null array;
step 216, if the switching value records V 2offi If the number of the switches is more than 1, the switching value is recorded as V 2offi Middle serial numbers 1 to n 2offi Record of-1 as a set V 2offi1 Will record V 2offi Middle serial numbers 2 to n 2offi As another group V 2offi2 (ii) a Will record V 2offi2 And record V 2offi1 The difference value obtained after the time records with the same middle sequence number are differenced is the interval time T of exiting the mechanical brake claw in the time period i in the running state 2offi If the switching value is recorded as V 2offi Is not more than 1, the interval time T of quitting the mechanical brake claw in the running state period i 2offi Is a null array;
step 217, T of each operation state time period i 2oni I.e. constituting the time interval TT between application to the mechanical brake pawl 2on T of each operating state period i 2offi I.e. the interval time TT between the component of withdrawing the mechanical brake claw 2off Where i ∈ [1, n ] m +1]。
Step 218, delete the interval time TT put into the mechanical brake claw 2on Median value exceeds the empirical value ω on Obtaining the interval time T of throwing the mechanical brake claw after the interval time 2on Deleting the interval time TT for withdrawing the mechanical brake claw 2off Median value exceeds the empirical value ω off Get back after the interval of timeInterval time T of mechanical brake claw 2off 。
Further, the empirical value ω on Is 30 seconds, empirical value ω off Is 30 seconds.
Further, the threshold value δ in step 3 0n Is 3 seconds, the threshold value delta in step 4 0ff Is 3 seconds.
Further, the equipment is in the operation period, when the mechanical brake claws are thrown in, N mechanical brake claws are thrown together, and when the mechanical brake claws are withdrawn, N mechanical brake claws are withdrawn together, wherein N is a positive integer and is more than 1.
Compared with the prior art, the invention fills the blank of the engineering field, and has the following advantages and technical effects:
(1) The invention provides a method which can separate abnormal switching value records caused by equipment maintenance, realize the separation and the respective analysis of the switching value records in the states of the mechanical brake claw input and exit, and obtain the asynchronous action condition of the mechanical brake claw in the two states;
(2) The automatic detection and control are realized by long-term manual treatment-dependent tedious work, and technical support is provided for operation and maintenance personnel to identify the phenomenon of asynchronous movement of the mechanical brake claw of the equipment, and for defect positioning, defect tracking and early defect elimination work;
(3) The invention can also quickly judge whether the power unit, the control unit, the feedback unit, the signal unit and the like of the equipment have defects according to the asynchronous action condition of the mechanical brake claw, and can eliminate the defects before the defects are exposed.
Drawings
FIG. 1 is a flow chart of a method for rapidly discriminating the defect of asynchronous motion of a mechanical brake claw in the embodiment.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the accompanying drawings and examples, but the invention is not limited thereto. It is noted that the processes described below, if not specifically described in detail, are all realizable or understandable by those skilled in the art with reference to the prior art.
The following example analyses were performed on the switching value records of the mechanical brake pawls of Guangzhou energy storage hydroelectric power plants, from 2018, 27 days 00 to 02, 04 days 00, # 3. The mechanical brake is put into the unit starting process, withdrawn before the unit guide vane is opened, put into the unit when the unit rotating speed is reduced to 5% of the rated rotating speed in the unit stopping process, and withdrawn after the unit is completely stopped.
As shown in tables 1 and 2, the switching value records include time records, status records, and electrical device descriptions accurate to milliseconds. <xnotran> , 1 "03GTA __ FA1__" #3 #1 , "03GTA __ FA2__" #3 #2 , "03GTA __ FA3__" #3 #3 , "03GTA __ FA4__" #3 #4 , 2 "GEN.BRAKE" . </xnotran> The state record "dispal- > APPLIED" represents the state of engagement of the mechanical brake, and the state record "APPLIED- > dispal" represents the state of disengagement of the mechanical brake.
With reference to the flow of fig. 1, the method for quickly discriminating the defect of asynchronous actions of the mechanical brake claw comprises the following steps:
step 1, acquiring and obtaining a switching value record V of a mechanical brake claw of a unit from 2018, 01 month, 27 day 00 to 02 month, 04 day 00 0 Record V on the amount of switching 0 After the switching value records with repeated time records (namely the switching value records shown in the table 2) are sorted and eliminated according to the time record sequence, the switching value record V is obtained 1 ；
Step 2, according to the equipment maintenance record M shown in the table 3, the slave switching value record V 1 Switching value record V of middle screening equipment in operation time period 2 Calculating a switching value record V 2 The interval time T of the middle-input mechanical brake claw 2on And the interval time T of withdrawing the mechanical brake claw 2off ；
Step 3, using T 2on Interval time T with maximum median value 2onmax (i.e., 1.82 seconds) is compared to a threshold of 3 seconds, T 2onmax If the brake force is not greater than the threshold value, the mechanical brake claw of the equipment does not need to be checked and maintained;
step 4, using T 2off Interval time T with the largest mean value 2offmax (i.e., 2.22 seconds) is compared to a threshold of 3 seconds, T 2offmax And the brake is not larger than the threshold value, and the mechanical brake claw of the equipment does not need to be checked and maintained.
Interval time T of throwing mechanical brake claw 2on And the interval time T between withdrawing the mechanical brake claw 2off Obtained by the following steps:
step 21, setting i =1, and obtaining the group number n of the start and end time of the equipment maintenance work m If 1, go to step 22;
step 22, recording V from the switching value 1 The switching value record V of which the acquisition state is recorded as the on state and the time record is earlier than the group 1 equipment overhaul start time (i.e., 2018/1/28 2on1 ；
Step 23, recording V from the switching value 1 The switching value record V in which the state record is the exit state and the time record is earlier than the group i equipment overhaul start time (i.e., 2018/1/28 2off1 ；
Step 24, recording the switching value V 2on1 Is 24 greater than 1, the switching value is recorded as V 2on1 Middle serial numbers 1 to n 2on1 Record of-1 (i.e. 23) as a set V 2on11 Will record V 2on1 Middle sequence number is 2 to n 2on1 (i.e. 24) as another set V 2on12 (ii) a Will record V 2on12 And record V 2on11 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of throwing into the mechanical brake claw in the running state time period 1 2on1 ；
Step 25, recording the switching value V 2off1 23 is greater than 1, the switching value is recorded as V 2off1 Middle serial numbers 1 to n 2off1 Record of-1 (i.e. 22) as a set V 2off11 Will record V 2off1 Middle serial numbers 2 to n 2off1 (i.e. 23) as another set V 2off12 (ii) a Will record V 2off12 And record V 2off11 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of quitting the mechanical brake claw in the running state time period 1 2off1 ；
Step 26, adding 1 to the value of i;
step 27, since n m =1, n is not satisfied m >1 and i is less than or equal to n m If so, go to step 213;
step 213, recording V from the switching value 1 The obtained state record is the input state, and the time record is later than the switching value record V of the group 1 equipment maintenance finishing time (namely 2018/1/28 2on2 ；
Step 214, recording V from the switching value 1 The obtained state record is an exit state, and the time record is later than the switching value record V of the group 1 equipment maintenance end time (namely 2018/1/28 2offi ；
Step 215, recording the switching value V 2on2 If the number of the switch values is 135 greater than 1, the switching value is recorded as V 2on2 Middle serial numbers 1 to n 2on2 Record of-1 (i.e. 134) as a set V 2on21 Will record V 2on2 Middle serial numbers 2 to n 2on2 (i.e. 135) as another set V 2on22 (ii) a Will record V 2on22 And record V 2on21 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of putting into the mechanical brake claw in the running state time period 2 2on2 ；
Step 216, recording the switching value V 2off2 If the number of the switch value is 131 is more than 1, the switch value is recorded as V 2off2 Middle serial numbers 1 to n 2offi Record of-1 (i.e. 130) as a set V 2off21 Will record V 2off2 Middle serial numbers 2 to n 2off2 (i.e. 131) as another set V 2off22 (ii) a Will record V 2off22 And record V 2off21 The difference value obtained after the time records with the same middle sequence number are differed is the interval time T of exiting the mechanical brake claw in the time period 2 in the running state 2off2 ；
Step 217, T of each operation state time period i 2oni I.e. the interval time TT between the brake claws 2on T of each operating state period i 2offi I.e. the interval time TT between the component of withdrawing the mechanical brake claw 2off Wherein i ∈ [1,2 ]]。
Step 218, delete the interval time TT put into the mechanical brake claw 2on Median value over experienceThe interval T between the application of the mechanical brake pads shown in Table 4 is obtained after an interval of 3 seconds 2on Deleting the interval time TT between exiting of the mechanical brake claw 2off After the interval time of the median value exceeding the empirical value of 3 seconds, the interval time T for withdrawing the mechanical brake pawl shown in Table 4 is obtained 2off 。
The invention aims to provide a method for quickly discriminating the defect of the asynchronous action of a mechanical brake claw, which is used for quickly acquiring the interval time difference of different actions of the mechanical brake claw from the switching value record of the mechanical brake claw of specified equipment in a specified historical period and providing technical support for operation and maintenance personnel to identify the phenomenon of the asynchronous action of the mechanical brake claw of the equipment, defect positioning, defect tracking and defect eliminating in advance.
(1) The invention provides a method which can separate abnormal switching value records caused by equipment maintenance, realize the separation and the respective analysis of the switching value records in the states of the mechanical brake claw input and exit, and obtain the asynchronous action condition of the mechanical brake claw in the two states;
(2) The automatic detection and control are realized by long-term manual treatment-dependent tedious work, and technical support is provided for operation and maintenance personnel to identify the phenomenon of asynchronous movement of the mechanical brake claw of the equipment, and for defect positioning, defect tracking and early defect elimination work;
(3) The invention can also quickly judge whether the power unit, the control unit, the feedback unit, the signal unit and the like of the equipment have defects according to the asynchronous action condition of the mechanical brake claw, and can realize defect elimination before the defects are exposed.
In conclusion, the invention provides data support for operation and maintenance personnel to identify the phenomenon that the mechanical brake claw does not synchronously move through rapidly acquiring the interval time difference of different actions of the mechanical brake claw, and can also obtain a fault mode which cannot be identified by human perception according to the interval time difference and the difference of a threshold value, thereby providing technical support for timely finding potential safety hazards influencing the asynchronous action of the mechanical brake claw and providing technical support for defect positioning, defect tracking and early defect elimination.
TABLE 1 switching value record V 0
TABLE 2 record of switching value V 1
TABLE 3 maintenance record M
| Name (R) | Refund of species | Starting time | End time | Remarks to note |
| #3 machine | Scheduled maintenance | 2018-01-28 14:05:00 | 2018-01-28 18:50:00 | Is free of |
TABLE 4 Interval time T 2on And T 2off
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents of all embodiments and should be included in the scope of the present invention.
Claims (4)
1. The method for quickly discriminating the defect of asynchronous actions of the mechanical brake pawl is characterized by comprising the following steps of:
step 1, collecting switching value records V of mechanical brake claws of specified equipment in specified historical period 0 To measure and record the switchRecord V 0 Sequencing according to the time record sequence and taking the unrepeated switching value record to obtain a switching value record V 1 (ii) a On-off quantity recording V 1 Obtained by the following process:
step 11, recording the switching value V according to the sequence of the time recording from the first to the last 0 Sequencing to obtain a switching value record V 01 ；
Step 12, taking the switch value record V 01 The switching value record with non-repeated middle time record is composed of a switching value record V 1；
Step 2, according to the equipment maintenance record M, the slave switching value record V 1 Switching value record V of medium screening equipment in operation period 2 Calculating the switching value record V 2 In the interval time T of the mechanical brake claw 2on And the interval time T between withdrawing the mechanical brake claw 2off (ii) a The equipment maintenance record M consists of the starting time of maintenance work and the finishing time of the maintenance work; interval time T of throwing mechanical brake claw 2on And the interval time T between withdrawing the mechanical brake claw 2off Obtained by the following steps:
step 21, setting i =1, and acquiring the group number n of the start and end moments of the equipment maintenance work m If n is m If the value of (A) is not 0, the process proceeds to step 22, if n is not 0 m If the value of (d) is 0, the switching value is recorded as V 1 And a switching value record V 2 For the same record, the switching value record V 2 The switching value of the medium state is recorded as the on state is recorded as V 2oni On/off record V 2 The switching value of the medium state recorded as the exit state is recorded as V 2offi And proceeds to step 215;
step 22, recording V from the switching value 1 The switching value record V of which the state record is the input state and the time record is earlier than the maintenance starting time of the i-th group of equipment 2oni ；
Step 23, recording V from the switching value 1 The switching value record V of which the state record is the exit state and the time record is earlier than the maintenance starting time of the i-th group of equipment 2offi ；
Step 24, if the switching value is recorded V 2oni Number of pieces greater than1, recording the switching value V 2oni Middle serial numbers 1 to n 2oni Record of-1 as a set V 2oni1 Will record V 2oni Middle serial numbers 2 to n 2oni As another group V 2oni2 (ii) a Will record V 2oni2 And record V 2oni1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of throwing into the mechanical brake claw in the running state time period i 2oni If the switching value is recorded as V 2oni Is not more than 1, the interval time T of putting into the mechanical brake claw in the running state time period i 2oni Is a null array;
step 25, if the switch value is recorded V 2offi If the number of the switches is more than 1, the switching value is recorded as V 2offi Middle serial numbers 1 to n 2offi Record of-1 as a set V 2offi1 Will record V 2offi Middle serial numbers 2 to n 2offi As another group V 2offi2 (ii) a Will record V 2offi2 And record V 2offi1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of quitting the mechanical brake claw in the running state time period i 2offi If the switching value is recorded as V 2offi Is not more than 1, the interval time T of quitting the mechanical brake claw in the running state period i 2offi Is a null array;
step 26, adding 1 to the value of i;
step 27, if n m >1 and i is less than or equal to n m Step 28 is performed, otherwise step 213 is performed;
step 28, recording V from the switching value 1 The switch value record V of which the time record is later than the overhaul finish time of the i-1 group of equipment and is earlier than the overhaul start time of the i group of equipment is used as the input state 2oni ；
Step 29, recording V from the switch value 1 The obtained state record is the quit state, the time record is later than the overhaul finish time of the i-1 th group of equipment, and the time record is earlier than the switching value record V of the overhaul start time of the i th group of equipment 2offi ；
Step 210, if the switching value records V 2oni If the number of the switching elements is more than 1, the switching value is adjustedRecord V 2oni Middle serial numbers 1 to n 2oni Record of-1 as a set V 2oni1 Will record V 2oni Middle serial numbers 2 to n 2oni As another group V 2oni2 (ii) a Will record V 2oni2 And record V 2oni1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of throwing into the mechanical brake claw in the running state time period i 2oni If the switching value is recorded as V 2oni Is not more than 1, the interval time T of throwing the mechanical brake claw in the running state time period i 2oni Is a null array;
step 211, recording V if the switching value is recorded 2offi If the number of the switches is more than 1, the switching value is recorded as V 2offi Middle serial numbers 1 to n 2offi Record of-1 as a set V 2offi1 Will record V 2offi Middle serial numbers 2 to n 2offi As another group V 2offi2 (ii) a Will record V 2offi2 And record V 2offi1 The difference value obtained after the time records with the same middle sequence number are differenced is the interval time T of exiting the mechanical brake claw in the time period i in the running state 2offi If the switching value is recorded as V 2offi Is not more than 1, the interval time T of quitting the mechanical brake claw in the running state period i 2offi Is a null array;
step 212, adding 1 to the value of i, and turning to step 26;
step 213, recording V from the switching value 1 The obtained state is recorded as the input state, and the time record is later than the nth state m Record V of switching value at the end of group equipment maintenance 2oni ；
Step 214, recording V from the switching value 1 The obtained state record is an exit state and the time record is later than the nth state m Switching value record V at the end of group equipment maintenance 2offi ；
Step 215, if the switching value is recorded V 2oni If the number of the switches is more than 1, the switching value is recorded as V 2oni Middle serial numbers 1 to n 2oni Record of-1 as a set V 2oni1 Will record V 2oni Middle serial numbers 2 to n 2oni As another group V 2oni2 (ii) a Will record V 2oni2 And record V 2oni1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of throwing into the mechanical brake claw in the running state time period i 2oni If the switching value is recorded as V 2oni Is not more than 1, the interval time T of putting into the mechanical brake claw in the running state time period i 2oni Is a null array;
step 216, if the switching value records V 2offi If the number of the switches is more than 1, the switching value is recorded as V 2offi Middle serial numbers 1 to n 2offi Record of-1 as a set V 2offi1 Will record V 2offi Middle serial numbers 2 to n 2offi As another group V 2offi2 (ii) a Will record V 2offi2 And record V 2offi1 The difference value obtained after the time records with the same middle serial number are differenced is the interval time T of quitting the mechanical brake claw in the running state time period i 2offi If the switching value is recorded as V 2offi Is not more than 1, the interval time T of quitting the mechanical brake claw in the running state period i 2offi Is a null array;
step 217, T of each operation state period i 2oni I.e. the interval time TT between the brake claws 2on T of each operating state period i 2offi I.e. the interval time TT between the component of withdrawing the mechanical brake claw 2off Where i ∈ [1, n ] m +1]；
Step 218, delete the interval time TT put into the mechanical brake claw 2on Median value exceeds the empirical value ω on Obtaining the interval time T of throwing the mechanical brake claw after the interval time 2on Deleting the interval time TT between exiting of the mechanical brake claw 2off Median value exceeds the empirical value ω off Obtaining the time interval T of withdrawing the mechanical brake claw after the time interval 2off ；
Step 3, using T 2on Interval time T with maximum median value 2onmax And a threshold value delta on Making a comparison if T 2onmax Greater than a threshold value delta on When the brake is started, the input system of the mechanical brake pawl of the equipment is checked and maintained, and if T is reached 2onmax Not greater than threshold δ on In time, the mechanical brake claw of the equipment does not need to be checkedMaintaining;
step 4, using T 2off Interval time T with the largest mean value 2offmax And a threshold value delta off Making a comparison if T 2offmax Greater than a threshold value delta off When the brake is in use, the withdrawing system of the mechanical brake claw of the equipment is checked and maintained, if T is reached 2offmax Not greater than threshold δ off In the process, the mechanical brake claw of the equipment does not need to be checked and maintained; the empirical value ω on Is 30 seconds, empirical value ω off Is 30 seconds; the threshold value delta in the step 3 0n Is 3 seconds, the threshold value delta in step 4 0ff Is 3 seconds.
2. The method for rapidly discriminating the asynchronous motion defect of the mechanical brake jaw according to claim 1, is characterized in that: the mechanical brake claw of the equipment in the step 1 is that when the equipment is in a normal running state, the mechanical brake claw can be put in at any time and the input state of the mechanical brake claw at the moment can be recorded through sending out the switch quantity, and the mechanical brake claw can also be withdrawn at any time and the quit state of the mechanical brake claw at the moment can be recorded through sending out the switch quantity.
3. The method for quickly discriminating the defect of asynchronous motion of the mechanical brake jaw according to claim 1, is characterized in that: the switching value comprises two state records, namely a '1' state record representing a switching-in state and a '0' state record representing a switching-out state; the switching value record at least comprises three record contents, namely time record, state record and equipment description accurate to millisecond.
4. The method for quickly discriminating the defect of asynchronous actions of the mechanical brake claws according to any one of claims 1 to 3, characterized in that: the equipment is in the operation period, when throwing into mechanical brake claw, will have N mechanical brake claw to throw in together, when withdrawing from mechanical brake claw, will have N mechanical brake claw to withdraw from together, wherein N is positive integer, and N is greater than 1.
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