CN113074311A - Intelligent lubricating system for coal mine belt conveyor and intelligent grease injection method - Google Patents
Intelligent lubricating system for coal mine belt conveyor and intelligent grease injection method Download PDFInfo
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- CN113074311A CN113074311A CN202110146329.9A CN202110146329A CN113074311A CN 113074311 A CN113074311 A CN 113074311A CN 202110146329 A CN202110146329 A CN 202110146329A CN 113074311 A CN113074311 A CN 113074311A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/24—Conveyors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2230/00—Signal processing
- F16N2230/02—Microprocessor; Microcomputer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
- F16N2250/08—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
- F16N2260/02—Indicating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention relates to an intelligent lubricating system and an intelligent grease injection method for a coal mine belt conveyor, wherein a PLC control box is respectively connected with a grease supplementing pump and a grease injection pump; the PLC control box is connected with an upper computer of the monitoring system, and the upper computer of the monitoring system is networked with the underground monitoring system; the temperature sensor, the vibration sensor and the blockage sensor are a group of sensor parts, and the temperature sensor and the vibration sensor are arranged at the head or the tail of the belt conveyor; the intelligent boxes correspond to the oil path controllers one by one, and each intelligent box is provided with a group of sensor parts; the intelligent grease injection mode of the intelligent box comprises a strong grease injection area, a weak grease injection area and a stop area. The invention adopts an intelligent lubrication design to greatly reduce the failure rate of the belt conveyor bearing, controls the temperature of the bearing within a certain range, obviously reduces vibration and noise and achieves the expected effect. The intelligent lubrication greatly reduces the fault downtime of equipment and the material consumption of spare parts, simultaneously reduces the labor intensity of workers, and obtains remarkable economic and social benefits.
Description
Technical Field
The invention relates to an intelligent lubricating system and an intelligent grease injection method for a coal mine belt conveyor.
Background
The belt conveyor is important underground electromechanical equipment, coal mined from all production surfaces is conveyed to a coal bunker by the belt conveyor and then lifted by the coal bunker, and the belt conveyor is important equipment for ensuring the yield of a coal mine, so that the maintenance of the belt conveyor is very critical. The center of gravity of the maintenance work is the application of the lubrication technology, and in order to ensure the best performance of the bearing, a correct lubrication system is required to be used, and the proper lubricant with the correct dosage is used for lubrication at the proper lubrication point and the correct lubrication time. Therefore, the intelligent lubrication of the underground coal mine belt conveyor is very necessary.
The coal mine belt conveyer goes through three stages of manual lubrication, automatic lubrication and intelligent lubrication. 1) The labor intensity of manual lubrication workers is high, and the lubrication period and the lubrication quality are difficult to ensure. The roller bearing is neglected to be lubricated due to negligence, so that the bearing is heated and damaged, and the conveyor stops running. 2) Automatic lubrication supplies the lubricant to each lubricating point of the belt conveyor through a distributor at regular time, quantitatively and accurately through a lubricating pump, and oil quantity and alarm monitoring can be carried out on each lubricating point. While minimizing friction and wear, the danger associated with manual lubrication is also eliminated. The centralized lubrication comprises a single-line lubrication system and a double-line lubrication system. 3) The intelligent lubrication is realized by taking a high-precision sensing signal as a support, an intelligent optimization control strategy and a grease distribution algorithm as means, combining network real-time monitoring, mobile phone App and other means, and taking the optimal lubrication effect as a target rather than a set working condition. The intelligent lubricating system has a complete self-checking means, guarantees reliability and basically realizes operation without maintenance. After the 'guidance suggestion about accelerating the intelligent development of coal mines' comes out, the current development of intelligent construction of coal mines is not in the aspect of electromechanical equipment management, and the real-time accurate perception of the running state of the equipment is the premise of intelligent remote/automatic control and is the basis for realizing the intelligence and no humanization of mine production. The existing monitoring and controlling system for mining machinery equipment stays at the level of visual display of sensing data and simple threshold analysis (signal value exceeds standard and exceeds limit), the maintenance of the equipment mainly adopts a point inspection and routing inspection mode, and the maintenance of the equipment adopts a mode of regular and after-treatment. Therefore, intelligent lubrication of the belt conveyor is therefore at hand.
The existing intelligent lubrication adopts a controllable timing and quantitative method, has outstanding advantages compared with artificial lubrication, but the biggest problem belongs to an open-loop control mode, and certain unavoidable problems inevitably exist:
1. the lubricating oil can be lubricated when not needed, so that the waste of the lubricating oil is caused; the need for "strong" lubrication also provides lubrication "not tight".
2. Lubrication regulation is not fed back with lubrication effect, and lubrication effect test sensors, such as vibration sensors, are missing.
3. Degree of automation is still not obvious, generally belongs to automatic control on the spot, lacks networking communication function, lacks and collects the APP function.
4. Lack of grease pressure sensors, flow sensors, blockage alarm sensors.
Disclosure of Invention
The invention aims to overcome the defects and provides an intelligent lubricating system and an intelligent grease injection method for a coal mine belt conveyor.
The purpose of the invention is realized as follows:
the utility model provides an intelligent lubricating system for colliery belt conveyor which characterized in that: the intelligent oil way control system comprises a sensor part, an oil way controller part, an intelligent box part, a PLC control box and a monitoring system upper computer;
the PLC control box is respectively connected with the fat supplementing pump and the fat injecting pump;
the PLC control box is connected with an upper computer of the monitoring system, and the upper computer of the monitoring system is networked with the underground monitoring system;
the sensor part comprises a temperature sensor and a vibration sensor which are a group of sensor parts, and the temperature sensor and the vibration sensor are arranged at the head or the tail of the belt conveyor;
the oil path controller part comprises a plurality of oil path controllers;
the intelligent box part comprises a plurality of intelligent boxes which are connected in parallel, the intelligent boxes correspond to the oil circuit controllers one by one, and each intelligent box is provided with a group of sensor parts.
Furthermore, the PLC control box adopts explosion-proof and intrinsically safe.
Further, the upper computer of the monitoring system can display the underground working condition through a mobile phone APP.
Furthermore, the PLC control box receives signals of a low liquid level of the grease supplementing, a low liquid level of the grease injecting, a high liquid level of the grease injecting and a pressure sensor.
Furthermore, the intelligent box is provided with an RS485 communication interface and is communicated with the PLC control box.
Further, the sensor part comprises a blockage sensor, and the blockage sensor is arranged in the intelligent box.
An intelligent grease injection method for an intelligent lubricating system of a coal mine belt conveyor is characterized in that: the intelligent grease injection mode of the intelligent box comprises a strong grease injection area, a weak grease injection area and a stop area;
the intelligent algorithm of the intelligent box is as follows: the intelligent box receives signals of the temperature sensor and the vibration sensor; analyzing the temperature variation trend, capturing the temperature abnormal phenomenon, and pre-judging the bearing fault in advance; and carrying out fast Fourier analysis on the vibration signal to obtain a vibration frequency spectrum of the vibration signal, analyzing to obtain the lubricating related factors, and further determining to adopt a lubricating mode. If strong grease injection is needed, a strong grease injection PWM mode is adopted, and grease injection following is adopted at the end stage of the strong grease injection; if weak grease injection is needed, a weak grease injection PWM mode is adopted, and grease injection following is not needed; and stopping grease injection if the lubricating grease meets the requirements and even has the risk of 'over' through the algorithm.
Furthermore, the duty ratio of the trailing region is 10% -30% of that of the strong fat injection region.
Further, the time of the trailing region is 5-10% of the strong fat injection region.
Compared with the prior art, the invention has the beneficial effects that:
according to the intelligent lubricating system and the intelligent grease injection method for the coal mine belt conveyor, the intelligent lubricating design scheme is adopted, so that the failure rate of a belt conveyor bearing is greatly reduced, the temperature of the bearing is controlled within a certain range, the vibration and the noise are obviously reduced, and the expected effect is achieved. The intelligent lubrication greatly reduces the fault downtime of equipment and the material consumption of spare parts, simultaneously reduces the labor intensity of workers, and obtains remarkable economic and social benefits.
Drawings
Fig. 1 is a schematic diagram of an intelligent lubricating system and an intelligent grease injection method for a coal mine belt conveyor.
Fig. 2 is a schematic diagram of automatic lubrication in comparison to manual lubrication.
Fig. 3 is a schematic diagram of the intelligent grease injection of the present invention.
Fig. 4 is a schematic view of a main interface of a configuration screen of a PLC control box according to the present invention.
Fig. 5 is a schematic system interface diagram of the upper computer of the monitoring system of the present invention.
Fig. 6 is a first schematic diagram of the App function of the mobile phone.
Fig. 7 is a schematic diagram of a second function of the App of the mobile phone.
In the figure:
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, the invention relates to an intelligent lubricating system for a coal mine belt conveyor, which comprises a sensor part, an oil way controller part, an intelligent box part, a PLC control box 1 and a monitoring system upper computer 4, wherein the sensor part is connected with the oil way controller part through a pipeline;
the PLC control box 1 is respectively connected with the grease supplementing pump 2 and the grease injecting pump 3 and is used for controlling the grease supplementing pump 2 and the grease injecting pump 3, and the grease supplementing pump 2 and the grease injecting pump 3 are matched to complete grease injection on a lubricating object; referring to fig. 6-7, the PLC control box 1 is explosion-proof and intrinsically safe;
referring to fig. 4 and 5, the PLC control box 1 is further connected to a monitoring system upper computer 4, and the monitoring system upper computer 4 is networked with the underground monitoring system to display the underground working condition in real time; the upper computer 4 of the monitoring system can display the underground working condition through a mobile phone APP.
The PLC control box 1 receives signals of a fat supplementing low liquid level 6, a fat injecting low liquid level 7, a fat injecting high liquid level 8 and a pressure sensor 9;
the sensor part comprises a temperature sensor 11, a vibration sensor 12 and a blockage sensor 13, the temperature sensor 11 and the vibration sensor 12 are arranged at the head or tail of the belt conveyor; a blockage sensor 13 is arranged in the intelligent box 10, and if the dispensing grease injection is blocked or works abnormally, the blockage sensor 13 gives an alarm.
The oil path controller part comprises a plurality of oil path controllers 5, and the oil path controllers 5 are used for quantitative lubrication;
the intelligent box part comprises a plurality of intelligent boxes 10 which are connected in parallel, the intelligent boxes 10 correspond to the oil circuit controllers 5 one by one, each intelligent box 10 is provided with a group of sensor parts, and the intelligent boxes 10 send distribution commands to the oil circuit controllers 5 according to signals of the sensor parts and commands of the PCL control box 1 to carry out intelligent distribution. The smart box 10 includes both conventional timing and dosing functionality and grease injection functionality based on PWM (pulse width modulation) approach. So that the fat output is controllable and optimized.
The intelligent box 10 is provided with an RS485 communication interface, is communicated with the PLC control box 1, receives commands of an upper computer, and simultaneously uploads intelligent lubricating information to the PLC control box and the upper computer;
referring to fig. 3, the smart grease injection manner of the smart box 10 includes a strong grease injection area, a weak grease injection area, and a stop area.
The intelligent algorithm of the intelligent box 10 is: the smart box 10 receives the temperature sensor 11 and vibration sensor 12 signals. And analyzing the temperature change trend, capturing the temperature abnormal phenomenon, and pre-judging the bearing fault in advance. And performing fast Fourier analysis (FFT) on the vibration signal to obtain a vibration frequency spectrum of the vibration signal, analyzing to obtain lubrication related factors, and further determining to adopt a lubrication mode. If the 'strong' grease injection is needed, a PWM (pulse width modulation) mode of strong grease injection is adopted, and the grease injection is adopted to follow at the end stage of the 'strong' grease injection. If the 'weak' grease injection is needed, a PWM mode of weak grease injection is adopted, and the grease injection following is not needed. And stopping grease injection if the lubricating grease meets the requirements and even has the risk of 'over' through the algorithm.
Wherein the duty ratio of the trailing region is 10% -30%, preferably 15% of that of the strong fat injection region.
Wherein the time of the trailing region is 5-10%, preferably 7.5% of the strong fat injection region.
Referring to fig. 2, different from the traditional timing and quantitative method, the intelligent algorithm has the advantages that the fat is injected according to the real-time requirement, no over-injection or under-injection occurs, and the real-time balance state is achieved. Considering that the thermal time constant is large and the electrical time constant is small, the algorithm is solved by a look-ahead manner.
The smart box 10 is a key part to achieve smart lubrication. The intelligent lubrication is realized according to signals of a temperature sensor and a vibration sensor and by combining an intelligent distribution algorithm. It performs neither a timed operation nor a quantitative operation, but determines how to inject grease according to an algorithm, all as required.
The invention ensures that the lubricating oil can be filled into the bearing in an optimal mode, reduces the failure rate of equipment, improves the productivity and prolongs the service life. The real-time monitoring of the lubricating points can find the blocked and leaked places in time, provide a basis for timely handling faults and reduce the labor intensity of workers. The accurate measurement adds oil mass, has avoided excessive refueling. The equipment maintenance cost is reduced. And the bearing temperature and vibration are monitored, so that the lubricating effect is ensured. The networking of the upper computer and the configuration of the mobile phone App enable all levels of management parts and full-time responsible personnel to monitor in real time, lubricating experience is accumulated, data support is provided for subsequent big data processing, and decision analysis of a lubricating effect is finally achieved.
In the above embodiments, the present invention is described only by way of example, but those skilled in the art, after reading the present patent application, may make various modifications to the present invention without departing from the spirit and scope of the present invention.
Claims (9)
1. An intelligent lubricating system for a coal mine belt conveyor comprises a sensor part, an oil way controller part, an intelligent box part, a PLC control box and a monitoring system upper computer;
the PLC control box is respectively connected with the fat supplementing pump and the fat injecting pump;
the PLC control box is connected with an upper computer of the monitoring system, and the upper computer of the monitoring system is networked with the underground monitoring system;
the sensor part comprises a temperature sensor and a vibration sensor which are a group of sensor parts, and the temperature sensor and the vibration sensor are arranged at the head or the tail of the belt conveyor;
the oil path controller part comprises a plurality of oil path controllers;
the intelligent box part comprises a plurality of intelligent boxes which are connected in parallel, the intelligent boxes correspond to the oil circuit controllers one by one, and each intelligent box is provided with a group of sensor parts.
2. The intelligent lubrication system for a coal mine belt conveyor as in claim 1 wherein: the PLC control box adopts explosion-proof and intrinsically safe.
3. The intelligent lubrication system for a coal mine belt conveyor as in claim 1 wherein: the upper computer of the monitoring system can display the underground working condition through the mobile phone APP.
4. The intelligent lubrication system for a coal mine belt conveyor as in claim 1 wherein: the PLC control box receives signals of a low liquid level for supplementing grease, a low liquid level for injecting grease, a high liquid level for injecting grease and a pressure sensor.
5. The intelligent lubrication system for a coal mine belt conveyor as in claim 1 wherein: the intelligent box is provided with an RS485 communication interface and is communicated with the PLC control box.
6. The intelligent lubrication system for a coal mine belt conveyor as in claim 1 wherein: the sensor part comprises a blocking sensor, and the blocking sensor is arranged in the intelligent box.
7. An intelligent grease injection method for an intelligent lubricating system of a coal mine belt conveyor is characterized in that: the intelligent grease injection mode of the intelligent box comprises a strong grease injection area, a weak grease injection area and a stop area;
the intelligent algorithm of the intelligent box is as follows: the intelligent box receives signals of the temperature sensor and the vibration sensor; analyzing the temperature variation trend, capturing the temperature abnormal phenomenon, and pre-judging the bearing fault in advance; and carrying out fast Fourier analysis on the vibration signal to obtain a vibration frequency spectrum of the vibration signal, analyzing to obtain the lubricating related factors, and further determining to adopt a lubricating mode. If strong grease injection is needed, a strong grease injection PWM mode is adopted, and grease injection following is adopted at the end stage of the strong grease injection; if weak grease injection is needed, a weak grease injection PWM mode is adopted, and grease injection following is not needed; and stopping grease injection if the lubricating grease meets the requirements and even has the risk of 'over' through the algorithm.
8. The intelligent lubricating system and the intelligent grease injection method for the coal mine belt conveyor as claimed in claim 6, wherein: the duty ratio of the trailing region is 10% -30% of that of the strong grease injection region.
9. The intelligent lubricating system and the intelligent grease injection method for the coal mine belt conveyor as claimed in claim 6, wherein: the time of the trailing region is 5-10% of the strong fat injection region.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110146329.9A CN113074311B (en) | 2021-02-03 | 2021-02-03 | Intelligent lubricating system for coal mine belt conveyor and intelligent grease injection method |
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| CN202110146329.9A CN113074311B (en) | 2021-02-03 | 2021-02-03 | Intelligent lubricating system for coal mine belt conveyor and intelligent grease injection method |
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| CN113074311A true CN113074311A (en) | 2021-07-06 |
| CN113074311B CN113074311B (en) | 2023-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753531A (en) * | 2021-08-20 | 2021-12-07 | 内蒙古双欣矿业有限公司 | Centralized automatic lubricating device for coal mine belt conveyor |
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| CN215174024U (en) * | 2021-02-03 | 2021-12-14 | 维克森(北京)科技有限公司 | Intelligent lubricating system for coal mine belt conveyer |
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2021
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Patent Citations (5)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113753531A (en) * | 2021-08-20 | 2021-12-07 | 内蒙古双欣矿业有限公司 | Centralized automatic lubricating device for coal mine belt conveyor |
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