CN-122020578-A - Mine conveying equipment self-adaptive inspection method based on operation characteristics and rule judgment

Abstract

The invention discloses a self-adaptive inspection method for mine conveying equipment based on operation characteristics and rule judgment, and relates to the technical field of operation monitoring of mine equipment. According to the method, the running state information of each device is obtained in real time, the current information, the rotating speed information and the running speed information in the running process of the mine conveying device are used as the basis, the changing states of each running information are extracted in a sampling time period, the changing state matching relation among the running information is determined based on the combination relation of the changing states of each running information, the changing amplitude difference relation among the running information is analyzed based on the changing state matching relation and the changing amplitude difference relation, the running state of the device is judged according to the changing state matching relation and the changing amplitude difference relation, the inspection frequency and the inspection triggering time are adjusted based on the judging result of the running state of the device, the self-adaptive execution of the inspection process is realized, and the pertinence and the efficiency of inspection execution are improved.

Inventors

• ZHANG JINGYU

Assignees

• 沈阳鑫万泉矿山设备有限公司

Dates

Publication Date

20260512

Application Date

20260415

Claims (8)

1. 1. The self-adaptive inspection method for the mine conveying equipment based on the operation characteristics and the rule judgment is characterized by comprising the following steps, Continuously collecting operation information of the mine conveying equipment in the operation process in the current sampling time period, wherein the operation information comprises current information, rotation speed information and operation speed information; Based on the numerical value change of the operation information in the current sampling time period, the change amplitude, the change direction and the change direction consistency of the operation information are respectively determined; dividing the change state of the operation information according to the change direction of the operation information and the consistency of the change direction, wherein the change state comprises an ascending state, a descending state or a fluctuation state; performing combined analysis on the change states of the operation information, and determining the matching relation of the change states between the operation information; Determining a variation amplitude difference relation between the operation information based on the variation amplitude of the operation information, and judging the operation state of the equipment according to the matching relation and the variation amplitude difference relation of the variation states between the operation information, wherein the operation state of the equipment comprises a load abnormal state, an operation unstable state and a normal operation state; Based on the judging result of the running state of the equipment, the inspection frequency and the inspection trigger time are determined, a corresponding inspection strategy is formed, and inspection is executed based on the inspection strategy.
2. 2. The inspection method according to claim 1, wherein the determining of the change amplitude, the change direction, and the change direction consistency of the operation information based on the numerical change of the operation information in the current sampling period, respectively, comprises, In the current sampling time period, the sampling data of the operation information are arranged according to the sampling time sequence to form a current information sequence, a rotating speed information sequence and an operation speed information sequence respectively, and the change amplitude of the operation information is determined based on the maximum value and the minimum value in each information sequence, wherein the change amplitude comprises the change amplitude of the current information, the change amplitude of the rotating speed information and the change amplitude of the operation speed information; Comparing the sizes of adjacent sampling data for each information sequence, judging the change direction of the operation information as ascending change when the latter sampling data is larger than the former sampling data, and judging the change direction of the operation information as descending change when the latter sampling data is smaller than the former sampling data, so as to determine the change direction of the operation information, including the change direction of the current information, the change direction of the rotating speed information and the change direction of the operation speed information; Based on the change directions of adjacent sampling data in each information sequence, when the change directions of all adjacent sampling data in the same information sequence are ascending change or descending change, the change directions of the operation information corresponding to the information sequence are judged to be consistent, and when the ascending change and the descending change exist in the change directions of the adjacent sampling data at the same time, the change directions of the operation information corresponding to the information sequence are judged to be inconsistent, so that the change direction consistency of the operation information is determined, wherein the change direction consistency of the current information, the change direction consistency of the rotating speed information and the change direction consistency of the operation speed information are included.
3. 3. The inspection method according to claim 2, wherein the change states of the operation information are divided according to the change direction and the change direction consistency of the operation information, the change states include a rising state, a falling state, or a fluctuation state, including, When the change directions of the operation information are judged to be consistent, and the change directions of all adjacent sampling data of the information sequence corresponding to the operation information are all ascending changes, dividing the change state of the operation information into ascending states, When the change directions of the operation information are judged to be consistent, and the change directions of all adjacent sampling data of the information sequence corresponding to the operation information are all descending changes, dividing the change state of the operation information into descending states, When it is determined that the changing directions of the operation information are not identical, the changing state of the operation information is divided into a fluctuation state.
4. 4. The inspection method according to claim 3, wherein the step of performing a combination analysis on the change states of the operation information to determine a matching relationship of the change states between the operation information comprises the steps of, Combining the change state of the current information, the change state of the rotating speed information and the change state of the running speed information according to the corresponding relation to form a state combination corresponding to the same sampling time period; Based on the state combination, the change states of the current information, the rotation speed information and the running speed information are correspondingly analyzed, and the matching relation of the change states among the three running information is determined.
5. 5. The inspection method according to claim 4, wherein the corresponding analysis of the change states of the current information, the rotation speed information and the operation speed information based on the state combination is performed to determine the matching relationship of the change states between the three operation information, including, When the change states of the current information and the running speed information are both rising states or falling states, determining that the three running information are in a synchronous matching relationship; when the change states of any two kinds of operation information in the current information, the rotation speed information and the operation speed information are respectively in an ascending state and a descending state, determining that the three kinds of operation information are in a load mismatch matching relationship; When any one of the current information, the rotation speed information or the operation speed information is in a fluctuation state, determining that the three operation information are in an operation fluctuation matching relationship.
6. 6. The inspection method according to claim 5, wherein the determining the variation amplitude difference relationship between the operation information based on the variation amplitude of the operation information, and determining the operation state of the equipment based on the variation amplitude difference relationship and the variation amplitude difference relationship of the variation states between the operation information comprises, Determining a variation amplitude difference relation between operation information by comparing the variation amplitude of current information, rotation speed information and operation speed information in a sampling time period; And judging the running state of the equipment based on the variation amplitude difference relation between the running information and the variation state matching relation between the running information, and determining that the equipment is in a load abnormal state, an unstable running state or a normal running state.
7. 7. The inspection method according to claim 6, wherein the determining the variation amplitude difference relation between the operation information by comparing the magnitudes of the variation amplitudes of the current information, the rotation speed information, and the operation speed information in the sampling period includes, In the variation amplitude of the current information, the rotation speed information and the running speed information, respectively calculating the absolute value of the variation amplitude difference value of every two running information, When the absolute value of the variation amplitude difference value of any two pieces of operation information is larger than a preset amplitude difference threshold value, judging that the variation amplitude difference relation between the operation information is obvious difference; And when the absolute value of the amplitude difference value of each pair of the operation information does not exceed the preset amplitude difference threshold value, judging that the variation amplitude difference relation between the operation information is the difference balance.
8. 8. The inspection method according to claim 7, wherein the determining the operation state of the equipment based on the variation amplitude difference relationship between the operation information and the variation state matching relationship between the operation information includes, When the change state matching relationship of the operation information is the operation fluctuation matching relationship, judging that the equipment is in an operation unstable state; When the change state matching relation of the operation information is a load mismatch matching relation and the change amplitude difference relation between the operation information is an obvious difference, judging that the equipment is in a load abnormal state; When the change state matching relation of the operation information is a load mismatch matching relation, but the change amplitude difference relation between the operation information is difference balance, judging that the equipment is in an operation unstable state; when the change state matching relation of the operation information is a synchronous matching relation and the change amplitude difference relation between the operation information is a difference balance, judging that the equipment is in a normal operation state; When the change state matching relation of the operation information is a synchronous matching relation, but the change amplitude difference relation between the operation information is an obvious difference, the equipment is judged to be in an unstable operation state.

Description

Mine conveying equipment self-adaptive inspection method based on operation characteristics and rule judgment Technical Field The invention relates to the technical field of operation monitoring of mining equipment, in particular to a self-adaptive inspection method for mining conveying equipment based on operation characteristics and rule judgment. Background In the long-time continuous operation process of the mine conveying equipment, potential faults need to be found in time and inspection needs to be arranged by monitoring the operation state information of the mine conveying equipment. In the prior art, a fixed inspection period or a fixed sampling mode is generally adopted to collect current information, rotation speed information and running speed information (or belt speed) of equipment, and the running state of the equipment is judged according to collected data. For example, CN105692118a discloses a fault monitoring and early warning system and method for a mine belt conveyor, the operation information such as the current of a driving motor, the rotation speed of a driving roller, the belt speed and the like is collected in real time through a working condition detection device of the conveyor, and fault diagnosis is performed based on sampling data, but the analysis mainly depends on independent detection of each parameter and preset processing rules, and comprehensive association analysis is not performed on the consistency of the change directions and the difference of the amplitudes among multiple operation information. CN114662834a proposes an online evaluation method for the health status of a mining belt conveyor, which takes the belt speed, instantaneous coal flow and current of a driving motor of the belt conveyor as characteristic parameters of operation conditions to respectively perform condition identification and health status evaluation, and belongs to typical independent or dimensional analysis modes of each operation information, and the cooperative change relation among driving, transmission and conveying processes is difficult to be comprehensively embodied. Meanwhile, the existing inspection mode is mostly executed by adopting a fixed period or a fixed path. For example, CN109649982a discloses an automatic inspection system for a mining belt conveyor along a line, which utilizes a track type inspection mobile platform to monitor the environment and the state of equipment along the line, but the inspection frequency and the trigger time still depend on a preset path and a preset period, and are not dynamically adjusted according to the change of the actual running state of the equipment. When the existing method is used for analyzing the running state, the method mainly has the defects that firstly, single running information or independent analysis of each running information is mainly used, the change characteristics of a single running link can be reflected, but the association relation and the cooperative change condition among a driving link, a transmission process and a conveying process cannot be fully considered. When the equipment has uneven load distribution, blocked transmission or abnormal local operation, single or independent analysis is difficult to accurately reflect the whole operation state of the equipment, the analysis of the operation information is multi-dimensionally focused on the single dimension of the variation trend or variation amplitude, the joint analysis is less combined with the consistency relation between the variation directions of the operation information and the difference degree between the variation amplitudes, so that whether the responses of different operation links are synchronous or not and whether the variation degrees are coordinated or not is difficult to effectively distinguish, the accuracy and the reliability of equipment operation state judgment are affected, the inspection mode is usually strictly dependent on a preset fixed inspection period or path, resource redundancy is easy to be caused when the equipment operation is stable, the inspection response capability is difficult to be timely improved when the equipment has abnormal trend or local fault seedling head, and the pertinence and the effectiveness of inspection are reduced. Disclosure of Invention Aiming at the problems, the invention provides a mine conveying equipment self-adaptive inspection method based on operation characteristics and rule judgment, which can realize self-adaptive adjustment of inspection frequency and inspection trigger time according to judgment results by analyzing the change characteristics of current information, rotation speed information and operation speed information and judging the equipment operation state based on the change relation among the operation information. In order to achieve the above object, the invention provides a mine conveying equipment self-adaptive inspection method based on operation characteristics and rule judgm