Self-cleaning monitoring device, linear tandem type online monitoring system and linear equipment

Abstract

The utility model relates to a self-cleaning monitoring device, a linear tandem type on-line monitoring system and linear equipment. The self-cleaning monitoring device comprises a main body; at least one noise recording device mounted on the main body; and the cleaning mechanism is used for cleaning the noise recording device through gas purging. The utility model also discloses a linear tandem type on-line monitoring system and linear equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of conveying equipment monitoring, especially the field of monitoring of linear equipment such as belt conveying equipment of fixed path such as factory, restaurant, coal mine, wharf and the like. More specifically, the utility model relates to a self-cleaning monitoring device, a linear series online monitoring system and linear equipment. BACKGROUND

[0002] In the field of linear equipment monitoring, especially the monitoring technology of belt conveying equipment of fixed path such as factory, restaurant, coal mine, wharf and the like, generally speaking, the belt conveying equipment such as belt conveyor is used for transporting goods, load and the like, and such equipment has many advantages such as long transportation distance, large transportation capacity, stable and fast transportation, long working time, no or little manual intervention during transportation, which can greatly improve the conveying efficiency and reduce the labor cost and labor intensity.

[0003] Generally speaking, since the belt conveying equipment needs to bear and convey a certain amount of load, during operation, especially after long-time work, it inevitably faces various problems such as reliability, wear and tear, failure of the belt conveying equipment and its parts. In particular, for example, the vulnerable and consumable parts of the belt conveying equipment such as belts, transport belts, rollers and the like are prone to various failure problems such as wear and tear, jamming and the like after long-time work and / or bearing operation, which affects the working continuity, safety, stability and reliability of the belt conveying equipment, and therefore it is necessary to monitor the operation process.

[0004] CN116119289A discloses an intelligent robot inspection system based on coal belt transportation, relating to the field of intelligent robot systems; for solving the problem that the existing intelligent robot cannot detect and feedback the state abnormal belt conveyor, affecting the transportation of coal by the belt; including a data acquisition module, a database, a server and a data execution module, the utility model dynamically monitors various information of the belt during operation through the inspection robot, analyzes and processes various operation information during operation, feeds back to the data execution module according to the obtained results, so as to execute different solutions according to the feedback results, and through the adjustment of the equipment itself and the processing of the management personnel, different abnormal states can be targeted, so as to realize the timely feedback of the inspection robot to abnormal conditions and the adjustment of parameters. CN116119289A mainly relates to the data acquisition, analysis and control technology of intelligent inspection robots.

[0005] CN115285621A relates to the technical field of fault monitoring, and specifically discloses a belt roller fault monitoring system based on artificial intelligence, which comprises: an audio monitoring subsystem for collecting noise from the belt conveyor, obtaining noise signal data, and processing and analyzing the noise signal data to determine whether there is an operation anomaly; a video monitoring subsystem for video shooting and infrared monitoring of the belt roller of the belt conveyor when there is an operation anomaly, generating shooting monitoring data, and performing fault positioning analysis on the shooting monitoring data to locate the specific fault roller. By audio monitoring to determine whether the belt roller is abnormal, and by video monitoring to locate the specific fault roller, the belt roller can be monitored through the combination of video and audio, effectively improving the detection accuracy, reducing labor costs, and improving safety. CN115285621A relates to the analysis, judgment and monitoring technology of signals / data based on artificial intelligence.

[0006] CN111498425B discloses a steel wire rope traction type coal mine underground belt conveyor circulating detection system, which comprises: a ropeway system, a cable holder, a belt conveyor state monitoring device, and a monitoring background system. The steel wire rope traction type coal mine underground belt conveyor circulating detection system drives the ropeway system to operate through power grid power supply, so that the belt conveyor state monitoring device on the ropeway system can smoothly patrol above the transport belt of the belt conveyor. The battery provided in the belt conveyor state monitoring device is only used to provide power for the sensing and communication devices, thereby prolonging the battery usage time. Each belt conveyor state monitoring device serves as a base station for the others and can real-time locate the patrol site through the wireless radio frequency module installed on the transport belt, upload various data information, and thus accurately determine the position of the belt conveyor where slipping, deviation, coal stacking, belt breaking, fire or roller failure occurs. The patrol robot of the utility model can autonomously patrol and real-time communicate, and intelligently diagnose the fault of the belt conveyor during the patrol process. CN111498425B mentions that by setting a special ropeway system, cable holder, belt conveyor state monitoring device and monitoring background system, etc., the belt conveyor state monitoring device on the ropeway system can smoothly patrol above the transport belt of the belt conveyor to achieve its monitoring purpose. However, its disadvantages are also obvious. The special hardware devices and systems, i.e., the ropeway system, cable holder, belt conveyor state monitoring device and monitoring background system, have extremely high cost and complex structure, are not conducive to wide-range and wider-field promotion and application, and the belt conveyor state monitoring device is for patrol, i.e., mobile, rather than fixed.

[0007] There is a continuous need in the industry for improved monitoring devices for linear devices, such as belt conveyors, which can provide lower costs, higher reliability and stability, better maintenance-free, longer working time and service life, more industrial applicability, for real-time monitoring of belt conveyors, improving their continuity, safety, stability and reliability of work and other performance, and minimizing or even eliminating the above-mentioned drawbacks of the prior art, and achieving other more technical advantages.

[0008] The information included in the Background section of this specification, including any references cited therein, as well as any additional descriptions or discussions of the prior art provided elsewhere in this document, is included for technical reference purposes only and is not to be construed as subject matter by which the scope of the present invention is to be bound. SUMMARY

[0009] The present invention has been made in view of the above and other more considerations.

[0010] One of the basic concepts of the present invention is to provide a self-cleaning monitoring device, which comprises: a main body; at least one noise recording device mounted on the main body; a cleaning mechanism for cleaning the noise recording device by gas blowing. In the present invention, the main purpose of gas blowing is to remove dust, debris and moisture (if any) on various monitoring components, noise recording devices, various sensors, infrared sensors such as infrared temperature meters, infrared thermal imaging heads, cameras (lenses) in the monitoring device, so that these sensor devices are always clean and in stable working condition, to maintain the reliability and stability of their performance indicators, to ensure the authenticity and effectiveness of data monitoring / sensing and recording.

[0011] According to an embodiment, the cleaning mechanism comprises an air inlet channel arranged outside the main body, a blowing gas channel in communication with the air inlet channel and located inside the main body, and a blowing gas outlet in communication with the blowing gas channel, wherein the blowing gas outlet is configured and positioned to facilitate blowing cleaning of the corresponding noise recording device.

[0012] According to an embodiment, the monitoring device is a plurality of monitoring devices arranged along the extension path of the linear device, wherein the air inlet channels of the monitoring devices are connected to a common compressed gas pipeline through respective compressed air branch pipelines, the common compressed gas pipeline being arranged along the extension path of the linear device and connected to a compressed gas supply source.

[0013] According to an embodiment, the plurality of monitoring devices constitutes a sensor chain, which is part of a sensor chain of a linear series online monitoring system and can be operated and controlled by the linear series online monitoring system.

[0014] According to an embodiment, the monitoring device is an audio monitoring device, in particular a noise monitoring device.

[0015] According to an embodiment, the air inlet channel is an air inlet pipe connected to or integrally formed with the main body, one end of which is connected to an external compressed gas supply source.

[0016] According to an embodiment, noise recording devices are arranged on each of the left and right sides of the main body.

[0017] According to an embodiment, two noise recording devices are arranged one above the other on each of the left and right sides of the main body.

[0018] According to an embodiment, the monitoring device has a square block shape, a square block shape with four inverted bevels, a drum block shape, a hexagonal block shape, or a symmetrical block shape formed by two identical isosceles trapezoids that are mirror- imaged along the bottom side.

[0019] According to an embodiment, the center axis of the mounting hole of each noise recording device forms an angle with respect to the vertical direction, the angle being in the range of greater than 0 degrees and less than or equal to 45 degrees.

[0020] According to an embodiment, the monitoring device is mounted on or near a linear device and cannot be pivoted about an axis.

[0021] According to an embodiment, at least one noise recording device is arranged on one side of the main body.

[0022] According to an embodiment, the monitoring device can be pivoted about an axis and further comprises a drive motor for driving the monitoring device to pivot about the axis between a starting position and an ending position.

[0023] According to an embodiment, the at least one noise recording device comprises two noise recording devices arranged on one side of the main body of the monitoring device, wherein the center axes of the mounting holes of the two noise recording devices form an angle with respect to each other, the angle being in the range of 0 degrees to 160 degrees.

[0024] According to an embodiment, the monitoring device is provided with a limit switch for limiting or restricting the starting position and the ending position.

[0025] According to an embodiment, the limit switch comprises a position sensor or a first stopper arranged on the mounting seat of the monitoring device, and a second stopper arranged on the main body of the monitoring device and cooperating with the main body.

[0026] According to an embodiment, the position sensor is a Hall sensor and the second stopper is a magnetic body.

[0027] According to an embodiment, the second stop defines a start stop portion and an end stop portion.

[0028] According to an embodiment, the monitoring device is pivotally mounted on a mounting base about an axis, the mounting base being mounted on or near the linear device.

[0029] According to an embodiment, the monitoring device further comprises at least one of an infrared sensor and a camera, and a purge gas outlet matched thereto for purge cleaning thereof.

[0030] According to an embodiment, the drive motor is a stepper motor or a servo motor.

[0031] According to another aspect of the present application, there is further provided a self-cleaning linear inline online monitoring system, comprising at least one communication front-end machine and at least one sensor chain, the at least one sensor chain comprising the self-cleaning monitoring device as described above.

[0032] According to another aspect of the present application, there is further provided a linear device, comprising the self-cleaning linear inline online monitoring system as described above.

[0033] According to an embodiment, the linear device is selected from one of a belt conveyor device, a pipe gallery and a large stress monitoring facility.

[0034] According to an embodiment, the linear device is a belt conveyor device, such as a belt conveyor.

[0035] According to another aspect of the present application, there is further provided a belt conveyor device, comprising: a conveyor belt; a drive device for driving the conveyor belt; a group of idler rollers for supporting and bearing the conveyor belt; a mounting structure arranged along a conveying path for mounting and / or supporting the conveyor belt and the group of idler rollers; the belt conveyor device further comprising the self-cleaning monitoring device or the linear inline online monitoring system as described above.

[0036] According to an embodiment, the mounting structure comprises two longitudinally extending path girders, and a plurality of mounting beams spaced apart from each other and fitted between the two path girders, on which the group of idler rollers is mounted.

[0037] According to an embodiment, the belt conveyor device further comprises a cross beam arranged between a plurality of mounting beams mounted between two adjacent mounting beams, wherein the self-cleaning monitoring device is mounted on at least one of the mounting beams and the cross beam.

[0038] According to an embodiment, the belt conveyor installation comprises an endless conveyor belt consisting of an upper conveyor belt and a lower conveyor belt, wherein the linear in-line monitoring system is configured to monitor noise from at least one of the upper conveyor belt and lower conveyor belt, the drive arrangement and the group of rollers.

[0039] According to an embodiment, the belt conveyor installation is configured for material transport in at least one of a factory, a restaurant, a coal mine, a quay and a harbour.

[0040] Further embodiments of the utility model can also achieve other advantageous technical effects not listed one by one, some of which are described below, and which can be expected and understood by those skilled in the art after reading the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0041] The above-mentioned features and advantages of the embodiments, and other features and advantages of the embodiments, as well as ways of realizing them, will be more apparent and can be better understood by referring to the following description in conjunction with the accompanying drawings, and embodiments of the utility model can be better understood.

[0042] Figure 1 is a perspective view of a belt conveyor installation from one perspective, on which a plurality of monitoring devices according to the first embodiment of the utility model are installed.

[0043] Figure 2 is Figure 1 is an enlarged perspective view of a section of the belt conveyor installation shown, which schematically illustrates the monitoring devices according to the first embodiment of the utility model and their arrangement on the belt conveyor installation in an enlarged view.

[0044] Figure 3 is Figure 2 is a further enlarged view of the monitoring devices, which further schematically illustrates the monitoring devices of the first embodiment.

[0045] Figure 4 is Figures 1-3 is an enlarged perspective view of the monitoring devices according to the first embodiment of the utility model from one perspective, which particularly schematically illustrates the configuration, installation and arrangement of the noise collecting means and the cleaning mechanism installed thereon.

[0046] Figure 5 is Figures 1-3 is an enlarged perspective view of the monitoring devices according to the first embodiment from another perspective different from that shown in Figure 4 , which schematically illustrates the configuration, installation and arrangement of the noise collecting means and the cleaning mechanism installed thereon from another perspective.

[0047] Figure 6 isFigures 1-3 one enlarged perspective view of the monitoring device according to the first embodiment, partly disassembled, showing the internal construction of the monitoring device, in particular the air supply channel and the air supply outlets of the cleaning mechanism.

[0048] Figure 7A is shown in a front projection view Figures 1-3 is a general schematic view of the monitoring device according to the embodiment shown.

[0049] Figure 7B is a suitably enlarged schematic cross-sectional view along the section line A-A in Figure 7A , showing the air supply channel, the internal air supply channel and the air supply outlets of the cleaning mechanism.

[0050] Figure 8 is a suitably enlarged schematic cross-sectional view along the section line A-A in Figure 2 is an enlarged perspective view of a section of the belt conveyor device shown, schematically showing the monitoring device according to the second embodiment of the application and its arrangement on the belt conveyor device, which can be Figure 1 the similar belt conveyor device shown.

[0051] Figure 9 is a further enlarged schematic view of the monitoring device shown, further schematically showing the monitoring device according to the second embodiment. Figure 8

[0052] is an enlarged perspective view of the monitoring device according to the second embodiment of the application, seen from one viewing angle, in particular schematically showing the noise acquisition means mounted thereon and the construction, mounting and arrangement of the cleaning mechanism thereof. Figure 10 Figures 8-9 is an enlarged perspective view of the monitoring device according to the second embodiment, seen from another viewing angle different from

[0053] , schematically showing the noise acquisition means mounted thereon and the construction, mounting and arrangement of the cleaning mechanism thereof, from another viewing angle. Figure 11A Figures 8-9 Figure 10 is an enlarged perspective view of the monitoring device shown, seen from a viewing angle generally opposite to , schematically showing the noise acquisition means mounted thereon and the cleaning mechanism thereof, in particular the lower air supply outlets, from another viewing angle.

[0054] Figure 11B Figure 11A is an enlarged perspective view of the monitoring device shown, seen from a viewing angle generally opposite to Figures 8-9 , schematically showing the noise acquisition means mounted thereon and the cleaning mechanism thereof, in particular the lower air supply outlets, from another viewing angle.

[0055] Figure 12 is an enlarged perspective view of the monitoring device shown, seen from a viewing angle generally opposite to Figures 8-9 ​​An enlarged perspective view of a monitoring device according to the second embodiment, shown with a part of the housing removed, illustrating the internal construction of the monitoring device, in particular the blow-off air duct and the blow-off air outlets of the cleaning mechanism as well as the drive motor driving the pivoting of the monitoring device about the axis.

[0056] Figure 13 is Figure 12 An enlarged view of the drive motor, in particular illustrating the connection features of its drive shaft.

[0057] Figure 14 is illustrated in the form of an orthographic projection Figures 8-9 An overall view of the monitoring device according to the second embodiment, in particular illustrating the arrangement of its noise acquisition means and limit switches.

[0058] Figure 15 is illustrated in the form of an orthographic projection Figures 8-9 An overall view of the monitoring device according to the second embodiment, illustrating the state and arrangement of the monitoring device (and its limit switches) in the starting position.

[0059] Figure 16 is illustrated in the form of an orthographic projection Figures 8-9 An overall view of the monitoring device according to the second embodiment, illustrating the state and arrangement of the monitoring device (and its limit switches) in the pivoted-to-terminating-position state.

[0060] Figure 17 is illustrated in the form of an orthographic projection Figures 8-9 An overall view of the monitoring device according to the second embodiment, illustrating the state and arrangement of the monitoring device in the pivoted-to-an-intermediate-position state between the starting position and the terminating position.

[0061] Figure 18 is an illustrative sectional view along the section line B-B in Figure 17 , illustrating the intake channel of the cleaning mechanism, the internal blow-off air duct and the blow-off air duct branches leading to the blow-off air outlets.

[0062] Figure 19 is a schematic diagram illustrating the principle of an example of an air circuit for supplying compressed air to the cleaning mechanism, schematically illustrating the supply, arrangement and lines of compressed air.

[0063] Figure 20 is a schematic diagram illustrating the connection of an intake channel of an example of a monitoring device according to the present utility model to supply compressed air thereto.

[0064] Figure 21One example of the arrangement of the compressed gas line connected to the plurality of (two shown) monitoring devices of the belt conveyor apparatus of the present application to supply compressed air thereto is shown schematically. DETAILED DESCRIPTION

[0065] The details of one or more embodiments of the application are set forth in the accompanying description below. Other features, objects, and advantages of the application will be apparent from the description and drawings, and from the claims.

[0066] It should be understood that the illustrated and described embodiments are not limited in application to the details of construction and arrangement of parts set forth in the following description or illustrated in the drawings. The illustrated embodiments can be capable of implementation in other embodiments and of being practiced or being carried out in various ways. Examples are provided by way of explanation of the disclosed embodiments and not by way of limitation. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made in the present embodiments without departing from the scope or spirit of the application. For example, features illustrated or described as part of one embodiment, can be used with another embodiment to yield still a further embodiment. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

[0067] Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and not of limitation. The use of terms such as "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of," and variations thereof, unless otherwise noted.

[0068] In the present application, unless specifically defined otherwise and limited, the terms "mounting", "connected with", "connection" and the like are to be construed broadly and, for example, can be direct connection, or indirect connection via an intervening medium, and "fixed connection" can be direct fixed connection or assembly, or indirect fixed connection or assembly. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0069] In the present application, for those skilled in the art, unless specifically defined otherwise and limited, the orientation and direction terms "up", "down", "left", "right", and the like associated with the monitoring device and its constituent parts are described and limited in conjunction with the orientation of the monitoring device in its normal use state.

[0070] The present application will be further described and explained in further detail with reference to the accompanying drawings and specific embodiments.

[0071] First embodiment

[0072] Figure 1 is a perspective view of one view of the belt conveyor 200 on which a plurality of monitoring devices 100 according to the first embodiment of the present application is installed. Figure 2 is Figure 1 is an enlarged perspective view of a section of the belt conveyor 200 shown to schematically illustrate the monitoring device 100 according to the first embodiment of the present application and its arrangement on the belt conveyor 200. Figure 3 is Figure 2 is a further enlarged view of the monitoring device 100 to further schematically illustrate the arrangement of the monitoring device 100 according to the first embodiment.

[0073] One non-limiting example of the belt conveyor 200 is a belt conveyor 200, which is a continuous conveying machine that uses a conveyor belt as a traction and carrying component for continuous endless movement to transport materials, and has the advantages of long conveying distance, large conveying capacity, small working resistance, easy installation, low power consumption, and less wear and tear. The conveyor belt of the belt conveyor passes through a driving drum and various reversing drums, for example, and is given an appropriate tensioning force by a tensioning device. When in operation, the conveyor belt is driven by the driving device to run through the frictional force and tensioning force between the drum and the conveyor belt. Materials are continuously fed onto the conveyor belt and move with the conveyor belt, thereby achieving the conveying of materials. The main components of the belt conveyor include a driving device, a drum set, a vertical tensioning device, a roller set, a cleaner, a conveyor belt, a safety protection device, and the like, which are all prior art and thus will not be described in detail.

[0074] As shown in Figures 1-3 , the belt conveyor 200 can be installed and circulate along a conveying path defined by longitudinally extending path stringers 250 (for example, there can be two path stringers 250, only one of which is shown in the figure) for conveying materials. The path stringers 250 can be erected on a plurality of support feet 220 arranged at intervals, for example, and the conveyor belt (e.g., a belt) of the belt conveyor 200 forms a looped configuration after installation, which is shown in the figure to include an upper conveyor belt 210A and a lower conveyor belt 210B (not shown). A plurality of mounting beams 230, for example, equally spaced apart, are provided between the two path stringers 250, and rollers 240 can be mounted on the mounting beams 230 to support and hold the upper conveyor belt 210A, facilitating the loading and conveying of materials on the upper conveyor belt 210A. According to one example, as shown in Figures 1-3As shown, to facilitate more reliable and higher-capacity installation of certain materials, such as easily spilled coal, bulk materials like grains, flour, etc., the upper conveyor belt 210A is constructed in a trench-like shape, for example, with an inverted trapezoidal cross-section. It is supported at each mounting beam 230 by two idler rollers 240 arranged at an angle to each other, conforming to and supporting the upper conveyor belt structure. This makes it particularly convenient for reliably and with a large capacity to carry and transport bulk materials such as coal, other powders, or granular materials. Of course, those skilled in the art will understand that the construction of the upper conveyor belt 210A is not limited to... Figures 1-3 As shown, other configurations are also possible. For example, if the upper conveyor belt is a simple flat conveyor belt, the idler roller 240 can be a simple horizontal idler roller, and the number at each location can be one, etc.

[0075] In the above example, although the upper conveyor belt 210A and the lower conveyor belt 210B are divided into upper and lower parts as shown in the figure, they are actually an integral unit, belonging to and together forming a (ring-shaped) conveyor belt. Of course, in some cases, such as when a circular motion is not required for conveying materials (e.g., transporting materials by the conveyor belt reciprocating within a certain distance, such as in some factories or the catering industry), only the upper conveyor belt 210A may be arranged, without the need for the lower conveyor belt 210B to form a ring-shaped conveyor belt. These are all within the scope of this utility model.

[0076] A common example of upper and lower conveyor belts is a belt, such as a belt made of rubber and woven fiber composite, or a conveyor belt made of steel belt. Of course, other forms of conveyor belts, such as mesh chain, chain plate, mesh belt, etc., are all within the scope of this utility model.

[0077] For example, Figures 1-3 As shown, multiple monitoring devices 100 can be installed on a plurality of spaced-apart crossbeams 260 between the two longitudinal beams 250. The crossbeams 260 can be arranged, for example, between every two mounting beams 230, or in other arrangements. One or more monitoring devices 100 can also be arranged on or near the belt conveyor 200, for example, on the mounting beams 230 and / or the longitudinal beams 250, or other suitable or necessary monitoring locations, etc., all of which are within the scope of this invention.

[0078] As stated at the beginning of this document, this invention relates to noise monitoring of linear equipment, such as belt conveyors with fixed paths. Since belt conveyors generate noise during operation, including but not limited to upper and lower conveyor belts, idlers, drive units, drive rollers, and / or reversing rollers, this invention uses a monitoring device 100 to collect noise data from the belt conveyor at several key locations (e.g., where several vulnerable and consumable parts are located) during operation. Because the noise after an operational anomaly or malfunction differs from the noise during normal operation—for example, when an anomaly or malfunction occurs in the conveyor belt or idlers, the decibel level, frequency distribution curve, etc., will show significant changes compared to normal operation—these can be analyzed and determined using a specialized monitoring or analysis system / device. Common noise monitoring indicators include: noise intensity, i.e., sound pressure in the sound field; and noise characteristics, i.e., the various frequency components of the sound pressure. After the noise signal is collected, it can be processed and analyzed using a specialized monitoring or analysis system / device to determine, for example, whether an operational anomaly or malfunction exists. When an anomaly is detected, an alarm can be issued to alert relevant personnel or workstations, and / or the location or component causing the anomaly / malfunction can be pinpointed. This effectively improves the continuity, safety, stability, and reliability of belt conveyor equipment, while reducing labor and maintenance costs.

[0079] The monitoring device 100 of the first embodiment of this utility model and its general concept and implementation are described below.

[0080] like Figures 4-6 The diagram illustrates the design and construction of a monitoring device 100 according to a first embodiment. The monitoring device 100 can be mounted (e.g., fixed with screws as shown) at a suitable desired mounting location, such as the beam 260 shown in the diagram, via a mounting base 130.

[0081] The main body 110 of the monitoring device 100 (after the monitoring device 100 is installed) may be generally square, such as a generally rectangular block, such as a square block with chamfered corners, drum-shaped, or for example, as... Figure 6 The shape shown is a symmetrical (hexagonal-like) shape formed by mirroring and merging two identical isosceles trapezoids at their bases, etc. The main body shape of the monitoring device 100 is not particularly limited; it can be any other suitable shape, as long as it facilitates the implementation of this invention or meets its specific application.

[0082] like Figures 4-6As shown, in each of the left and right sides of the square (or hexagon-like shape) main body 110 of the monitoring device 100, one or more, for example, two noise recording devices 140A and 140B, and 140C and 140D are arranged on each side. The noise recording device can be any suitable recording device, but considering the cost and size and other factors, a preferred example is a microphone. Of course, other recording devices are also possible when applicable and needed, such as a sound level meter, earphone, recording pen, sound card, sound sensor, noise meter, frequency analyzer, real-time analyzer, sound intensity analyzer, noise level analyzer, noise dosimeter, automatic recorder, tape recorder, etc., which are also within the scope of the present application.

[0083] In Figures 4-6 In the symmetrical (hexagon-like) shape composed of two identical isosceles trapezoids in the bottom edge mirror image merging, in the noise recording device arranged on one side, for example, the noise recording device 140A or 140C above, it can receive and collect noise from the side and above and below the side due to the direction pointing to the side and the upper (the upward angle can be adjusted according to the design / needs) and the direction pointing to the side and the lower (the downward angle can be adjusted according to the design / needs). Similarly, in the noise recording device arranged on the other side, for example, the noise recording device 140B or 140D above, it can receive and collect noise from the other side and above and below the other side due to the direction pointing to the other side and the upper (the upward angle can be adjusted according to the design / needs) and the direction pointing to the other side and the lower (the downward angle can be adjusted according to the design / needs). As for the belt conveyor device 200 applied by the monitoring device 100 of the first embodiment, the monitoring device 100 can not only monitor the running noise of the upper and lower conveyor belts 210A and 210B running through the cross beam 260, but also monitor the noise of the plurality of idlers 240 installed on the two mounting beams 230 on the left and right sides of the cross beam 260, so as to be able to monitor and handle the specific noise in the abnormal or failure state in the first time.

[0084] As an important concept of the utility model, since the belt type conveying equipment will encounter relatively severe working conditions in some application occasions, for example, in outdoor, or in the occasions with more dust, powder, moisture, water vapor, the noise recording device of the monitoring device can encounter accumulation or covering of dust, powder, moisture, water vapor and the like after a period of use, thereby adversely affecting audio information collection, recording effect, or even damaging the noise recording device. Therefore, the utility model aims to provide a monitoring device 100 with a self-cleaning function, which periodically or as needed blows and cleans the respective noise recording devices 140A, 140C, 140B, 140D through the blowing gas outlets 150A, 150C, 150B, 150D arranged at the position of the noise recording device or nearby, without the need for special manual cleaning, thereby greatly saving manual maintenance and improving the reliability, stability and service life of the noise recording device work.

[0085] More specifically, as shown in the figure, the air inlet channel in the form of the air inlet pipe 120 is installed on the monitoring device 100, one end of which is connected with the external compressed gas supply source (not shown, preferably a high-pressure blowing gas supply source) to receive high-pressure blowing gas from the compressed gas supply source, and the other end is connected with the blowing air passage 160 inside the monitoring device 100, so as to supply the high-pressure blowing gas to the blowing gas outlets 150A, 150C, 150B, 150D via the blowing gas inlet 120A, the blowing air passage 160, for blowing and cleaning the respective noise recording devices 140A, 140C, 140B, 140D. The high-pressure blowing gas can be general compressed air, the pressure of which is sufficient to provide effective blowing and gas flushing. Of course, in some occasions, the high-pressure blowing gas can be air or inert gas such as nitrogen according to the need, for example, in the downhole coal mine application with sufficient safety requirements. In some high-humidity occasions, the high-pressure blowing gas can be compressed dry air. In some high-temperature environments, the high-pressure blowing gas can also be cold gas for cooling the noise recording device while blowing, and the like, which are within the scope of the utility model.

[0086] The self-cleaning structure of the monitoring device 100 will be further described below. Figures 7A-7B The self-cleaning structure of the monitoring device 100 will be further described below. Figure 7A The overall schematic view of the monitoring device 100 according to the first embodiment is shown in the form of an orthographic projection. Figures 1-3 The overall schematic view of the monitoring device 100 according to the first embodiment is shown in the form of an orthographic projection. Figure 7B is along the Figure 7AThe schematic cross-sectional view, viewed from section line AA, shows the air intake passage 120, the internal purge air passage 160, and purge air passage branches 160A and 160B that communicate with the internal purge air passage 160 and lead to the purge gas outlets 150A, 150C, 150B, and 150D. Purge gas from the air intake passage 120 passes through the internal purge air passage 160 and purge air passage branch 160A to the purge gas outlets 150A and 150B, respectively, for purge-type cleaning of noise recording devices 140A and 140B. Purge gas from the air intake passage 120 passes through the internal purge air passage 160 and purge air passage branch 160B to the purge gas outlets 150C and 150D, respectively, for purge-type cleaning of noise recording devices 140C and 140D. This purge cleaning can be periodic, such as a pre-set automatic program, or it can be performed specifically according to a designated procedure.

[0087] Second embodiment

[0088] The following is in conjunction with the appendix Figures 8-18 The second embodiment of this utility model will be described in further detail.

[0089] Figure 8 It is similar to Figure 2 The enlarged perspective view of a segment of the belt conveyor 200 schematically illustrates the monitoring device 300 according to the second embodiment of the present invention and its arrangement on the belt conveyor 200, wherein the belt conveyor 200 may be... Figure 1 The belt conveyor 200 shown is similar to this one. Figure 9 yes Figure 8 The enlarged schematic diagram of the monitoring device 300 shown further illustrates the monitoring device 300 of the second embodiment. Figure 10 yes Figures 8-9 The enlarged perspective view of the monitoring device 300 according to the second embodiment of the present invention is shown, particularly illustrating the structure, installation, and arrangement of the noise acquisition device and its cleaning mechanism mounted thereon. Figure 11 is... Figures 8-9 The monitoring device 300 according to the second embodiment shown is a slave and Figure 10 The enlarged 3D schematic diagram shown is from a different perspective, illustrating the structure, installation, and arrangement of the noise acquisition device and its cleaning mechanism mounted on it. Figure 11B Is with Figure 11A Looking at it from roughly the opposite perspective Figures 8-9 The enlarged three-dimensional schematic diagram of the monitoring device 300 shown schematically illustrates the noise acquisition device and its cleaning mechanism mounted on it from another perspective, especially the purge gas outlets 400A and 350B below.Figure 12 is Figures 8-9 is Figure 13 is Figure 12 is

[0090] The belt conveyor 200 to which the monitoring device 300 is applied and the arrangement of the monitoring device 300 on or near the belt conveyor 200 can be substantially the same as described in the first embodiment, and thus will not be repeated here.

[0091] The main body 310 of the monitoring device 300 may, for example, as a whole, present a generally square, for example, a generally rectangular block shape, for example, a square block with four corners being inverted bevels, a drum shape, a hexagonal shape, and the like. The main body shape of the monitoring device 300 is not particularly limited and can be any other suitable shape as long as it facilitates the implementation of the present application or meets its specific application.

[0092] As shown in Figures 8-9 On one side of the square main body 310 of the monitoring device 300, one or more, for example, two, noise recording devices 340A and 340B as shown are arranged. The noise recording device can be any suitable recording device, but considering factors such as cost and size, a preferred example is a microphone. Of course, other recording devices are also possible when applicable and needed, such as a sound level meter, a headset, a recording pen, a sound card, a sound sensor, a noise meter, and the like, which are also within the scope of the present application.

[0093] As an important concept of the present application, since the belt conveyor is subjected to relatively harsh working conditions in some applications, for example, in outdoor or in environments with a lot of dust, dirt, moisture, and water vapor, the noise recording device of the monitoring device may, after a period of use, be subjected to accumulation or covering of dust, dirt, moisture, and water vapor, which will adversely affect audio information acquisition, recording effect, or even damage the noise recording device. Therefore, the present application aims to provide a monitoring device 300 with a self-cleaning function, which periodically or as needed, respectively, cleans the noise recording devices 340A, 340B through the blowing gas outlets 350A, 350B arranged at or near the noise recording devices, without the need for special manual cleaning, thereby greatly saving manual maintenance and improving the reliability, stability, and life of the noise recording device.

[0094] The main differences between the monitoring device 300 of the second embodiment and the monitoring device 100 of the first embodiment are: (1) the noise recording device is only set on one side of the monitoring device 300 instead of both sides, so the number is less and the cost is lower; (2) the monitoring device 300 of the second embodiment can be driven and controlled to pivot around an axis, so that it can more flexibly monitor / collect noise from more target locations / components as needed or preset, while the monitoring device 100 of the first embodiment is fixed.

[0095] about Figures 8-10 The noise recording devices 340A and 340B shown are arranged on one side, because they are pointed to that side ( Figure 10 As shown on the left), and pointing slightly upwards and downwards respectively (the upward and downward angles can be adjusted according to design / needs), it can receive and focus on collecting noise from this side as well as from above and below this side. Unlike the first embodiment, the monitoring device 300 of the second embodiment does not have any noise recording device on the other side, but is configured to pivot around an axis, thereby allowing for more flexible and focused monitoring / collection of noise from more target locations / components, as further detailed below.

[0096] Figure 14 Displayed in the form of orthographic projection Figures 8-9 The overall schematic diagram of the monitoring device 300 of the second embodiment shown in the figure particularly illustrates the arrangement of its noise acquisition device and limit switches. Figure 15 Displayed in the form of orthographic projection Figures 8-9 The overall schematic diagram of the monitoring device 300 of the second embodiment shown illustrates the state and arrangement of the monitoring device 300 (and its limit switches) in the starting position. Figure 16 Displayed in the form of orthographic projection Figures 8-9 The overall schematic diagram of the monitoring device 300 of the second embodiment shown illustrates the state and arrangement of the monitoring device 300 (and its limit switches) pivoted to the termination position. Figure 17 Displayed in the form of orthographic projection Figures 8-9 The overall schematic diagram of the monitoring device 300 of the second embodiment shown illustrates the state and arrangement of the monitoring device 300 when it is pivoted to an intermediate position between the starting position and the ending position.

[0097] More specifically, as shown, unlike the first embodiment in which the monitoring device 300 is fixed and cannot be pivoted or rotated, the monitoring device 300 of the second embodiment is mounted on the mounting base 330 via a pivot shaft 360, and is configured to be driven to pivot around the pivot shaft 360 by a driving motor 390 (e.g. a stepper motor) installed in the main body 310. The driving motor 390 forms an electrical (and / or communication) connection with the outside through an interface 390A on the main body 310, and forms a driving connection with the pivot shaft 360 through a motor shaft 3901 (which can have a fixed connection feature such as a key connection as shown) of the driving motor 390. When the driving motor 390 rotates, it drives the monitoring device 300 to pivot around the pivot shaft 360, for example, from the starting position shown in Figure 15 to the plurality of intermediate positions shown in Figure 17 and to the ending position shown in Figure 16 , and can be reversed from the ending position shown in Figure 16 to the plurality of intermediate positions and finally to the starting position shown in Figure 15 . During this period, the positions / components that can be focused on for monitoring / capturing noise of the noise recording devices 340A and 340B change in a wider range, thereby enabling more flexible and wider monitoring / capturing of noise from more target positions / components in a more flexible and wider manner than the first embodiment, but only requiring fewer noise recording devices.

[0098] The pivoting of the monitoring device 300 and its noise recording devices 340A and 340B around the pivot shaft can be automatically and periodically performed in a pre-set manner, or can be controlled to pivot around the pivot shaft according to instructions. For this purpose, on the one hand, in order to facilitate the monitoring and / or control of the real-time orientation of the monitoring device 300 and its noise recording devices 340A and 340B, on the other hand, in order to ensure the safe and controlled pivoting thereof, and for other purposes, etc., the inventors of the present application have provided a limit switch on the monitoring device 300 of the second embodiment. According to one example, the limit switch of the monitoring device 300 includes a position sensor 380 such as a Hall sensor (which can also serve as a first stopper) provided on the mounting base 330, and a second stopper 370 provided on the monitoring device 300 and cooperating therewith, which can preferably employ or deploy a magnetic member such as a magnet. When in the starting position shown in Figure 15 , the second stopper 370 (e.g. at the starting stop portion 370A thereof as shown) is configured to be in contact with and stopped and sensed in position by the position sensor 380 such as a Hall sensor which also serves as a first stopper, at which time the position can be limited by mechanical stopping on the one hand, and the driving motor can be controlled to stop rotating by sensing the starting position on the other hand; when pivoted to the plurality of intermediate positions shown in Figure 16At the shown end position, the second stop 370 (as shown at its end stop portion 370B) is configured to be stopped by the contour of the corresponding portion of the mounting 330, so that it cannot be further pivoted in the original pivoting direction, but can be reversed pivoted towards the start position; in addition, since the end position is pre-settable (the angle value from the start position to the end position is pre-settable), when the start position is detected and determined by the sensor, the end position is also determined at the same time, so that the driving motor can be controlled to stop rotating at the end position after rotating the pre-set angle, thereby also playing the role of electrically controlled limiting at the end position. That is, according to this example, when the first stop 370 also functions as a position sensor 380 such as a Hall sensor, the limit switch can function as a position switch (Hall switch) to limit / restrict the start position and the end position of the monitoring device 300 by controlling the start / stop of the driving motor, and the limit switch can also function as a travel switch to limit / restrict the start position and the end position of the monitoring device 300 by a mechanical method.

[0099] Figure 18 is a schematic cross-sectional view along the section line B-B in Figure 17 , showing the air inlet channel 320, the purge gas inlet 3201, the internal purge air passage 3101 and the purge gas outlets 350A, 350B of the cleaning mechanism. As shown in Figures 17-18 , an air inlet channel in the form of an air inlet tube 320 is mounted on the monitoring device 300, one end of which is connected to an external compressed gas supply (not shown, preferably a high-pressure purge gas supply) to receive high-pressure purge gas from the compressed gas supply, and the other end of which is connected to the internal purge air passage 3101 of the monitoring device 300, so as to supply high-pressure purge gas from the purge gas inlet 3201 to the purge gas outlets 350A, 350B via the purge air passage 3101 (and possibly the purge air passage branches) in the direction indicated by the arrows in Figure 18 , for purging cleaning of the respective noise recording devices 340A, 340B. The purging cleaning can be periodic, such as a pre-set automatic execution program, or can be performed specifically according to a specified purpose.

[0100] According to an optional example, in addition to the noise recording devices, the monitoring device 300 can also be provided with additional components to achieve additional measurement and / or monitoring functions. For example, as shown in Figures 10-12As shown, one or more additional measuring / monitoring devices 400 can also be provided at the spacing between the two noise recording devices 340A and 340B. The measuring / monitoring device 400 can be an infrared sensor such as an infrared thermal imager or an infrared thermometer, or a camera, or one or more of them. The infrared thermometer and the camera can also be integrated together as an integrated device. Based on similar ideas and considerations, the measuring / monitoring device 400 is also provided with at least one purge gas outlet, for example, purge gas outlets 400A and / or 400B, which can share the purge gas channel with the purge gas outlets 350A, 350B. For example, as shown in Figure 10 and Figures 11A-11B the lower purge gas outlet 400A can share a purge gas channel with the upper purge gas outlet 350A, the upper purge gas outlet 400B can share a purge gas channel with the lower purge gas outlet 350B, and so on, all within the scope of the present application.

[0101] Figure 19 A schematic diagram showing an example of the principle of the air path for supplying compressed air to the cleaning mechanism, schematically showing the supply, arrangement and piping of compressed air. Figure 20 A schematic diagram showing the connection of the air inlet channel of one of the monitoring devices 300 of the present application to supply compressed air thereto. Figure 21 A schematic diagram showing an example of the arrangement of the compressed gas piping 500 and the plurality of compressed air branch pipes 500A for supplying compressed air to a group of monitoring devices 300 (two are shown in the figure, but any number can be used) of the belt conveyor device 200 of the present application.

[0102] As shown in Figures 19-21 the compressed air from the compressed gas supply source 510 is delivered to the air tank 520 and is supplied to the air inlet channel (such as the air inlet channel 320) of each monitoring device 100, 300 (one of which is denoted by 300) via the main piping 500 arranged along the belt conveyor device (belt conveyor) 200, for example, along and mounted on one or two path longitudinal beams 250 thereof, and the plurality of branch pipes 500A (for example, one branch pipe 500A for each monitoring device to supply compressed air thereto) respectively configured for the group of monitoring devices 100, 300 of the belt conveyor device. Figure 19

[0103] ​According to a preferred example, the compressed gas pipeline 500 and the compressed air branch pipeline 500A, and the compressed air branch pipeline 500A and the gas inlet passage of the monitoring device 100, 300 (such as the gas inlet passage 320) can be connected by pneumatic quick connectors, so that the compressed gas pipeline can be quickly installed and removed when multiple monitoring devices are arranged on the belt conveying device.

[0104] A gas control valve, such as a solenoid valve 510, can be arranged between the gas tank 520 and the main pipeline 500 for controlling the on / off of the compressed gas, so as to control the gas supply and / or the gas purging operation of the monitoring device, such as the on / off of the compressed gas supply, the gas supply pressure, the gas supply time, the gas supply time interval, etc.

[0105] The monitoring device 100, 300 described above is a plurality of monitoring devices 100, 300 arranged along the conveying path of the belt conveying device, forming at least one sensor chain. The gas inlet passage of the monitoring device 100, 300 can be connected to a common compressed gas pipeline through a respective compressed air branch pipeline, and the common compressed gas pipeline is arranged along the extension path of the belt conveying device 200 and connected to a compressed gas supply source.

[0106] According to an example, the at least one sensor chain formed by the plurality of monitoring devices 100, 300 described above is part of a sensor chain of a linear series online monitoring system, whereby the linear series online monitoring system can control the operation of the at least one sensor chain (i.e., containing a plurality of monitoring devices 100, 300), including monitoring / detection of the monitoring device 100, 300, data logging and transmission, etc., and operation and control of the compressed gas purging cleaning mode of the monitoring device 100, 300. An example of the linear series online monitoring system can be found in the Chinese invention patent with the publication number CN118482757B and the title of "A Linear Series Online Monitoring System and Its Control Method" applied by the same applicant on July 9, 2024, the content of which is incorporated herein by reference as if fully described herein.

[0107] According to an example, the linear series online monitoring system described above can include at least one communication front-end and at least one sensor chain, which can contain a plurality of self-cleaning monitoring devices 100, 300, so that the linear series online monitoring system is self-cleaning.

[0108] According to another aspect of the present application, there is also provided a linear device comprising the self-cleaning linear inline on-line monitoring system or the set of self-cleaning monitoring devices 100, 300 as described above.

[0109] According to another aspect of the present application, there is also provided a belt conveyor device comprising: a conveyor belt; a driving device for driving the conveyor belt; a set of idlers for supporting and bearing the conveyor belt; a mounting structure arranged along the conveying path for mounting and / or supporting the conveyor belt and the set of idlers; the belt conveyor device further comprises the self-cleaning monitoring device 100, 300 or the self-cleaning linear inline on-line monitoring system as described above.

[0110] According to one example, one example of the motor of the electric driving mechanism can be a stepper motor, but can also be any other suitable motor form, such as a servo motor, etc.

[0111] According to one example, the monitoring device is positioned on the belt conveyor device so as to facilitate the at least one noise recording device thereof to focus on monitoring the noise of a target position / component.

[0112] According to one example, the driving motor of the monitoring device can be designed with a belt braking mechanism.

[0113] According to one example, the at least one noise recording device of the monitoring device is positioned so that the central axis of the mounting hole thereof forms an angle with respect to the vertical direction, the angle being in the range of greater than zero degrees and less than or equal to 45 degrees.

[0114] According to one example, the at least one noise recording device of the monitoring device is positioned so that the central axis of the mounting hole thereof forms an angle with respect to the horizontal direction, the angle being in the range of greater than zero degrees and less than or equal to 45 degrees. For example, the central axes of the mounting holes of the upper and lower noise recording devices on one side of the monitoring device form an angle with each other in the range of 45 degrees to 135 degrees, such as preferably forming an included angle of about 90 degrees.

[0115] According to one example, the at least one noise recording device of the monitoring device is positioned so that the central axis of the mounting hole thereof forms an angle with respect to the vertical direction, the angle being about 45 degrees. In addition, it can also be understood by those skilled in the art that in the present application, the at least one noise recording device of the monitoring device is positioned so that the central axis of the mounting hole thereof forms an angle with respect to the vertical direction close to zero degrees or close to 90 degrees, which are all within the scope of the present application.

[0116] The basic concept of the present application is described above in combination with the embodiments. It is noted that the above merely describes the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments, mutual combinations and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. The scope of the present application is determined by the appended claims.

Claims

1. A self-cleaning monitoring device, characterized in that, The self-cleaning monitoring device includes: main body; At least one noise recording device mounted on the main body; and A cleaning mechanism for cleaning the noise recording device by blowing air through it.

2. The self-cleaning monitoring device according to claim 1, characterized in that, The cleaning mechanism includes an air intake channel disposed outside the main body, a purge air duct communicating with the air intake channel and located inside the main body, and a purge gas outlet communicating with the purge air duct, wherein the purge gas outlet is configured and positioned to facilitate purge cleaning of the corresponding noise recording device.

3. The self-cleaning monitoring device according to claim 2, characterized in that, The monitoring device is a group of multiple linearly connected monitoring devices arranged along the extension path of the linear equipment. The air intake channels of the monitoring devices are connected to a common compressed gas pipeline through their respective compressed air branch lines. The common compressed gas pipeline is arranged along the extension path of the linear equipment and connected to a compressed gas supply source.

4. The self-cleaning monitoring device according to claim 3, characterized in that, The set of multiple monitoring devices is part of the sensor chain of a linear series online monitoring system.

5. The self-cleaning monitoring device according to any one of claims 1-4, characterized in that, Noise recording devices are provided on each of the left and right sides of the main body.

6. The self-cleaning monitoring device according to claim 5, characterized in that, On each of the left and right sides of the main body, two noise recording devices are arranged one above the other.

7. The self-cleaning monitoring device according to any one of claims 1-4, characterized in that, The monitoring device is installed on or near a linear device and cannot pivot about an axis.

8. The self-cleaning monitoring device according to any one of claims 1-4, characterized in that, At least one noise recording device is provided on one side of the main body.

9. The self-cleaning monitoring device according to claim 8, characterized in that, The monitoring device is capable of pivoting about an axis and also includes a drive motor for driving the monitoring device to pivot about the axis between a starting position and an ending position.

10. The self-cleaning monitoring device according to claim 9, characterized in that, The at least one noise recording device includes two noise recording devices disposed on one side of the main body of the monitoring device, wherein the central axes of the mounting holes of the two noise recording devices form an angle between each other, the angle being in the range of 0 degrees to 160 degrees.

11. The self-cleaning monitoring device according to claim 10, characterized in that, The monitoring device is equipped with limit switches to limit or constrain the starting position and the ending position.

12. The self-cleaning monitoring device according to claim 11, characterized in that, The limit switch includes: a position sensor or a first stop located on the mounting base of the monitoring device; and a second stop disposed on the main body of the monitoring device and cooperating therewith.

13. The self-cleaning monitoring device according to claim 12, characterized in that, The position sensor is a Hall sensor, and the second stop is a magnetic material.

14. The self-cleaning monitoring device according to claim 12 or 13, characterized in that, The second stop defines a starting stop portion and an ending stop portion.

15. The self-cleaning monitoring device according to any one of claims 9-13, characterized in that, The monitoring device is pivotally mounted about an axis on a mounting base, which is mounted on or near a linear device.

16. The self-cleaning monitoring device according to any one of claims 1-4 and 9-13, characterized in that, The monitoring device also includes at least one of an infrared sensor and a camera, and a purge gas outlet matched thereto for purging cleaning.

17. A self-cleaning linear series online monitoring system, comprising at least one communication front-end unit and at least one sensor chain, characterized in that, The at least one sensor chain includes a self-cleaning monitoring device according to any one of claims 1-16.

18. A linear device, characterized in that, The linear device includes the self-cleaning linear series online monitoring system according to claim 17.

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