Coal stocktaking instrument

Abstract

The utility model discloses a coal stocktaking instrument, which belongs to the technical field of automatic management of coal yards, and comprises a laser scanner, a rotary holder, a protection assembly and a purging assembly, the protection assembly comprises a first housing and a second housing, the first housing and the second housing are detachably connected and communicated with each other, the rotary holder is arranged in the first housing, and the purging assembly is arranged in the first housing. The laser scanner is arranged in the second housing; the purging assembly comprises an air supply part, an air supply pipe, a first purging air nozzle and a second purging air nozzle, the air supply part is connected with the input end of the air supply pipe, the air supply pipe is provided with two output ends which are connected with the first purging air nozzle and the second purging air nozzle respectively, and the first purging air nozzle is arranged in the first housing and used for purging the rotating holder; and the second purging air nozzle is arranged in the second housing and is used for purging the lens. According to the coal stocktaking instrument, through a double-protection system of the protection assembly and the purging assembly, the rotary holder and the laser scanner are effectively protected, and it is guaranteed that the coal stocktaking instrument stably and accurately runs for a long time in a complex environment.

Description

Technical Field

[0001] This utility model relates to the field of coal yard automation management technology, and in particular to a coal inventory device. Background Technology

[0002] Coal inventory analyzers are suitable for industries such as power, coal, steel, petrochemical, and metallurgy. They are used to measure the volume and weight of coal piles, provide 3D display, and assist in analysis. Existing coal inventory analyzers mainly consist of a rotating pan-tilt head and a laser scanner. The pan-tilt head can drive the laser scanner to rotate at multiple angles, allowing the laser scanner to scan and measure the coal pile from different directions, thereby obtaining relevant data to calculate parameters such as coal storage.

[0003] In actual use, due to the complex environment of the coal yard, there is a lot of dust and debris. The coal measuring instrument is prone to wear and malfunction of the rotating gimbal and laser scanner due to dust and other debris entering the interior, which affects the measurement accuracy and service life. Moreover, after long-term use, coal dust can easily accumulate on the surface of the laser scanner lens, which not only affects the appearance of the equipment, but may also affect its optical components and reduce the accuracy of the measurement.

[0004] To address the aforementioned issues, patent CN202123000316.5 discloses a rotatable purging device for a coal inventory analyzer, achieving a purging effect on the scanner lens. Patent CN202223005411.9 discloses a coal inventory analyzer that uses a dust cover installed on the outside of the lidar component to prevent dust from affecting the lidar.

[0005] However, in existing technologies, the protective cover only covers a portion of the scanner or pan-tilt unit, making the mechanical structure of the pan-tilt unit susceptible to dust intrusion, which can lead to jamming or wear. Furthermore, existing blowing assemblies are mostly designed for scanner lenses and lack dust removal designs for the pan-tilt unit, resulting in excessive dust accumulation inside the pan-tilt unit that is difficult to clean. This causes changes in the resistance during pan-tilt rotation, affecting accuracy over long-term operation. In addition, the separate design of the protective cover and the blowing assembly makes disassembly and maintenance inconvenient and affects efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a coal panning instrument to solve the technical problems existing in the prior art, such as the lack of protection of the rotating gimbal, the difficulty in cleaning the internal dust, and the inconvenience of disassembly and assembly caused by the separation of the protective cover and the purging component.

[0007] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0008] A coal counting device, comprising:

[0009] A laser scanner, which has a lens for scanning an object to be measured;

[0010] A rotating gimbal, the output end of which is connected to the laser scanner, the rotating gimbal being able to drive the laser scanner to rotate around its own axis;

[0011] The protective assembly includes a first housing and a second housing, which are detachably connected and communicate with each other. The rotating gimbal is disposed inside the first housing, and the laser scanner is disposed inside the second housing.

[0012] The purging assembly includes an air supply unit, an air supply pipe, a first purging nozzle, and a second purging nozzle. The air supply unit is connected to the input end of the air supply pipe, and the air supply pipe has two output ends, which are respectively connected to the first purging nozzle and the second purging nozzle. The first purging nozzle is disposed inside the first housing and is used to purge the rotating gimbal. The second purging nozzle is disposed inside the second housing and is used to purge the lens.

[0013] Preferably, at least a portion of the second housing has a transparent area that faces the lens.

[0014] Preferably, the inner wall of the transparent area is provided with an anti-fog heating film.

[0015] Preferably, the second cover has an opening, and a cover is movably connected to the second cover, the cover being able to open or close the opening.

[0016] Preferably, the cover and the second housing are rotatably connected by a pivot, and the second housing is provided with a driving member. The driving member is connected to the cover and can drive the cover to rotate around the pivot, thereby opening or closing the opening.

[0017] Preferably, the outer surface of the cover extends in an arc shape.

[0018] Preferably, the first purge nozzle is embedded in the inner wall of the first cover, and the outlet end of the first purge nozzle is set at a first angle with the rotating gimbal.

[0019] Preferably, the first included angle is greater than or equal to 30 degrees and less than or equal to 45 degrees.

[0020] Preferably, multiple first purge nozzles are provided, and the multiple first purge nozzles are spaced apart along the circumference of the first cover on the inner wall of the first cover.

[0021] Preferably, the second purge nozzle is annular and surrounds the outer periphery of the lens. The second purge nozzle has multiple air outlets, which are arranged at intervals along the circumference of the second purge nozzle on the inner wall of the second purge nozzle.

[0022] The beneficial effects of this utility model are:

[0023] The coal counting instrument proposed in this utility model employs a design with a detachable and interconnected first and second housing in its protective assembly. The rotating pan-tilt unit is housed within the first housing, and the laser scanner within the second housing. This layout comprehensively and effectively protects the rotating pan-tilt unit and laser scanner, significantly reducing the possibility of external dust and debris entering the equipment. This lowers the risk of wear and malfunction due to debris intrusion, thereby effectively extending the service life of the coal counting instrument. The air supply unit in the purging assembly provides a stable air source to the first and second purging nozzles via an air supply pipe. The first purging nozzle, located within the first housing, purges the rotating pan-tilt unit, while the second purging nozzle, located within the second housing, purges the laser scanner lens. This timely cleaning of dust accumulated on the rotating pan-tilt unit and lens ensures smooth operation of the rotating pan-tilt unit and maintains a good scanning state for the lens, thus guaranteeing the measurement accuracy of the coal counting instrument. Furthermore, the detachable connection between the first and second covers in the protective assembly, along with the placement of the purging assembly inside the protective assembly, creates an integrated design. This makes the disassembly and assembly of the purging and protective assemblies more convenient during maintenance of the coal inventory system, improving maintenance efficiency. In summary, this coal inventory system, through its dual protection system of the protective and purging assemblies, effectively protects the rotating gimbal and laser scanner, ensuring long-term stable and accurate operation of the coal inventory system in complex environments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first structure of the coal counting device provided in Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the second structure of the coal measuring instrument provided in Embodiment 1 of this utility model.

[0026] In the picture:

[0027] 100. Laser scanner; 101. Lens; 200. Rotating gimbal;

[0028] 1. Protective components; 11. First cover; 12. Second cover; 13. Cover; 14. Rotating shaft; 15. Driving component; 16. Buckle; 17. First locking plate; 18. Second locking plate;

[0029] 2. Purge assembly; 21. Air supply pipe; 22. First purge nozzle; 23. Second purge nozzle. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] See Figure 1 and Figure 2The coal counting device provided in this embodiment of the utility model includes a laser scanner 100, a rotating gimbal 200, a protective component 1, and a purging component 2. The laser scanner 100 includes a lens 101 for scanning the object to be tested. The output end of the rotating pan-tilt unit 200 is connected to the laser scanner 100, and the rotating pan-tilt unit 200 can drive the laser scanner 100 to rotate around its own axis. The protective assembly 1 includes a first cover 11 and a second cover 12, which are detachably connected and interconnected. The rotating pan-tilt unit 200 is disposed inside the first cover 11, and the laser scanner 100 is disposed inside the second cover 12. The purging assembly 2 includes an air supply unit, an air supply pipe 21, a first purging nozzle 22, and a second purging nozzle 23. The air supply unit is connected to the input end of the air supply pipe 21, which has two output ends connected to the first purging nozzle 22 and the second purging nozzle 23, respectively. The first purging nozzle 22 is disposed inside the first cover 11 and is used to purge the rotating pan-tilt unit 200. The second purging nozzle 23 is disposed inside the second cover 12 and is used to purge the lens 101.

[0035] The coal counting instrument proposed in this utility model adopts a design in which the first cover 11 and the second cover 12 are detachably connected and interconnected. The rotating gimbal 200 is placed inside the first cover 11 and the laser scanner 100 is placed inside the second cover 12. This layout can comprehensively and effectively protect the rotating gimbal 200 and the laser scanner 100, greatly reducing the possibility of external dust and debris entering the equipment, reducing the risk of wear and malfunction caused by debris intrusion, and thus effectively extending the service life of the coal counting instrument. In the purging assembly 2, the air supply unit provides a stable air source to the first purging nozzle 22 and the second purging nozzle 23 via the air supply pipe 21. The first purging nozzle 22, located inside the first housing 11, purges the rotating gimbal 200, while the second purging nozzle 23, located inside the second housing 12, purges the lens 101 of the laser scanner 100. This effectively cleans the dust accumulated on the rotating gimbal 200 and the lens 101, ensuring smooth operation of the rotating gimbal 200 and maintaining a good scanning state for the lens 101, thereby guaranteeing the measurement accuracy of the coal inventory analyzer. Furthermore, the detachable connection between the first housing 11 and the second housing 12 in the protective assembly 1, and the placement of the purging assembly 2 inside the protective assembly 1, creates an integrated design between the purging assembly 2 and the protective assembly 1. This makes the disassembly and assembly of the purging assembly 2 and the protective assembly 1 more convenient during coal inventory analyzer maintenance, improving maintenance efficiency. In summary, the coal counting instrument effectively protects the rotating gimbal 200 and the laser scanner 100 through the dual protection system of the protection component 1 and the purging component 2, ensuring the long-term stable and accurate operation of the coal counting instrument in complex environments.

[0036] The specific structure of the coal counting device is described below.

[0037] The output of the rotating gimbal 200 is connected to the laser scanner 100. During operation, the rotating gimbal 200 operates via its own drive unit, causing the laser scanner 100 to rotate around its own axis at multiple angles. The laser scanner 100 has a lens 101 for scanning the object under test. As the rotating gimbal 200 rotates the object, the lens 101 continuously adjusts its scanning orientation. The laser scanner 100 emits a laser beam and receives the laser signal reflected from the surface of the coal pile under test. Utilizing principles such as the time-of-flight or phase difference of the laser, it accurately measures the distance between the laser scanner 100 and various points on the surface of the coal pile. As the rotating gimbal 200 drives the laser scanner 100 to rotate continuously, the laser scanner 100 can comprehensively scan the coal pile from different directions, acquiring distance data from various angles. This distance data is transmitted to the data processing unit of the coal inventory analyzer. Based on this data, the data processing unit constructs a three-dimensional model of the coal pile using specific algorithms, and then calculates parameters such as the volume and weight of the coal pile, completing the measurement of relevant information about the coal pile and realizing the function of the coal inventory analyzer in coal yard measurement.

[0038] It is understood that the rotating gimbal 200 and the laser scanner 100 are existing mechanical devices in this field, and their working principles and specific structures will not be elaborated here.

[0039] The protective assembly 1 includes a first cover 11 and a second cover 12, which are used to respectively house the rotating gimbal 200 and the laser scanner 100 to provide protection. Since the rotating gimbal 200 and the laser scanner 100 need to be connected and used together, in order to prevent the first cover 11 and the second cover 12 from interfering with the rotating gimbal 200 and the laser scanner 100, the first cover 11 and the second cover 12 are internally interconnected and externally detachable to ensure that the interior provides complete accommodating space for housing and connecting the rotating gimbal 200 and the laser scanner 100.

[0040] Specifically, in this embodiment, a plurality of snap fasteners 16 are provided at the connection between the first cover 11 and the second cover 12, and the first cover 11 and the second cover 12 are detachably connected by the snap fasteners 16. In other embodiments, the first cover 11 and the second cover 12 may also be connected by bolts, pins, etc., and this is not limited here.

[0041] The laser scanner 100 is housed within the second housing 12 for protection. To prevent the housing structure of the second housing 12 from obstructing the scanning process of the laser scanner 100, at least a portion of the second housing 12 has a transparent area facing the lens 101. This transparent area effectively prevents the second housing 12 from obstructing the scanning process, allowing the laser beam to exit unimpeded from the lens 101 and receive the reflected signal during scanning, ensuring the integrity and accuracy of the scanned data and avoiding blind spots. It also facilitates observation of the operating status of the internal components of the second housing 12.

[0042] In this embodiment, the second housing 12 is made of a transparent material, making the entire second housing 12 a transparent area, thereby providing a larger field of view for the laser scanner 100. The transparent material can be acrylic, glass, polycarbonate, etc., and is not limited here. In other embodiments, only the part of the second housing 12 near the lens 101 may be made of a transparent material, which will not be elaborated here.

[0043] Preferably, the area of ​​the second housing 12 near the lens 101 extends in an arc shape. The arc-shaped extension area can better fit the scanning range of the laser scanner 100 lens 101, reduce the interference of refraction or reflection caused by the edge of the housing, make the emission and reception of the laser beam smoother, thereby improving the scanning accuracy and ensuring that the data obtained by the coal detector is more accurate and reliable.

[0044] In actual construction sites, due to the complex environment and large humidity variations in coal yards, fog is easily generated in the transparent area of ​​the second cover 12 when the ambient humidity is high and the temperature changes. The fog will seriously affect the scanning line of the laser scanner 100 lens 101, resulting in inaccurate scanning data.

[0045] Therefore, the inner wall of the transparent area is equipped with an anti-fog heating film. The anti-fog heating film can effectively prevent water vapor from condensing into fog on the inner wall of the transparent area, maintain good light transmittance of the transparent area, and ensure that the laser scanner 100 lens 101 emits and receives laser signals without being interfered with by fog, thus ensuring the smooth operation of the scanning work.

[0046] Among them, the anti-fog heating film can be made of transparent conductive oxide (TCO), indium tin oxide (ITO), graphene, etc., which will not be elaborated here.

[0047] Furthermore, in the coal yard environment, due to the large amount of floating dust and impurities, in some cases, dust and impurities may adhere to the outer wall of the second cover 12. Since the blowing assembly 2 cannot blow the outer wall of the second cover 12, the transparent area may be blocked by dust, affecting the scanning effect of the lens 101.

[0048] Therefore, an opening is provided on the second housing 12, and a cover 13 is movably connected to the second housing 12, which can open or close the opening. When the transparent area is blocked, opening the cover 13 allows the lens 101 to directly scan the object to be measured through the opening, avoiding dust interference in the transparent area and ensuring the scanning accuracy and data accuracy of the laser scanner 100. Closing the cover 13 after coal inventory is completed prevents external dust and impurities from entering the interior of the second housing 12. In addition, the opening and cover 13 facilitate the maintenance of components such as the laser scanner 100 inside the second housing 12 without disassembling the entire second housing 12, thus improving maintenance efficiency.

[0049] Specifically, the cover 13 and the second housing 12 are rotatably connected via a pivot 14. A driving member 15 is provided on the second housing 12 and is connected to the cover 13. The driving member 15 can drive the cover 13 to rotate around the pivot 14, thereby opening or closing the opening. In this embodiment, a first retaining plate 17 is fixedly connected to the second housing 12, and a second retaining plate 18 is fixedly connected to the cover. The pivot 14 passes sequentially through the first retaining plate 17 and the second retaining plate 18. The output end of the driving member 15 is connected to the second retaining plate 18. By driving the second retaining plate 18 to move, the cover 13 connected to it is simultaneously driven to move around the pivot 14.

[0050] The drive unit 15 can be selected from drive motors, air pumps, hydraulic cylinders, and other drive devices, all of which are common devices in this field. Their working principles and specific structures will not be elaborated here.

[0051] In other embodiments, the opening and closing method of the cover 13 can be a sliding type that cooperates with the slide rail; or the cover 13 can be magnetically connected to the opening, etc., which will not be elaborated here.

[0052] Preferably, the outer surface of the cover 13 extends in an arc shape. Compared with a flat structure, the arc shape makes it more difficult for dust to stay and accumulate on the cover 13. Under the action of gravity and natural wind, dust is more likely to slide off the arc shape, thereby reducing the amount of dust accumulation on the surface of the cover 13. This not only helps to keep the appearance of the cover 13 clean, but also effectively prevents a large amount of dust from accumulating on the surface of the cover 13 and causing a large amount of dust to enter the second cover 12 when the cover 13 is opened.

[0053] Regarding the blowing assembly 2, the first blowing nozzle 22 is used to blow the rotating gimbal 200 inside the first housing 11. Specifically, the first blowing nozzle 22 is embedded in the inner wall of the first housing 11, and the air outlet of the first blowing nozzle 22 is set at a first angle to the rotating gimbal 200. This arrangement effectively saves internal space in the first housing 11, making the internal structure more compact and reasonable, while also achieving integration of the first blowing nozzle 22 and the first housing 11, facilitating disassembly and assembly. Secondly, the first angle between the air outlet and the rotating gimbal 200 allows for precise guidance of the blowing airflow based on the structural characteristics of the rotating gimbal 200 and the potential locations of dust accumulation. Blowing at the first angle allows the airflow to more effectively cover key parts of the rotating gimbal 200, especially areas prone to dust accumulation such as crevices and rotating joints, thus more comprehensively and thoroughly removing dust and impurities from the surface and interior of the rotating gimbal 200.

[0054] Specifically, the first included angle is greater than or equal to 30 degrees and less than or equal to 45 degrees. The degree value of the first included angle can be 30 degrees, 35 degrees, 40 degrees, 45 degrees, etc., and needs to be adjusted adaptively according to the actual situation. No limit is set here.

[0055] Preferably, multiple first purge nozzles 22 are provided, and the multiple first purge nozzles 22 are arranged at intervals along the circumference of the first cover 11 on the inner wall of the first cover 11, so that multiple nozzles can purge the rotating gimbal 200 from different directions, expanding the purge coverage area, so that all parts of the rotating gimbal 200, including the sides, edges and some hard-to-reach corners, can be effectively purged, and dust and impurities that may accumulate in all directions can be completely removed.

[0056] The second purge nozzle 23 is used to purge the lens 101 inside the second housing 12. Specifically, the second purge nozzle 23 is annular and surrounds the outer periphery of the lens 101. The second purge nozzle 23 has multiple air outlets, which are spaced apart along the circumference of the second purge nozzle 23 on its inner wall. The annular design allows the second purge nozzle 23 to tightly surround the lens 101, ensuring that the purge airflow can cover the surrounding area of ​​the lens 101 in all directions without dead angles. The multiple air outlets spaced apart along the circumference allow the purge airflow to be blown more evenly onto the surface of the lens 101, avoiding poor cleaning effect in some areas due to uneven airflow distribution, thus optimizing the purge effect.

[0057] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coal counting device, characterized in that, include: A laser scanner (100) having a lens (101) for scanning an object to be measured; A rotating gimbal (200) is provided, the output end of which is connected to the laser scanner (100). The rotating gimbal (200) is capable of driving the laser scanner (100) to rotate around its own axis. The protective assembly (1) includes a first cover (11) and a second cover (12), the first cover (11) and the second cover (12) are detachably connected and communicate with each other, the rotating gimbal (200) is disposed in the first cover (11), and the laser scanner (100) is disposed in the second cover (12); The purge assembly (2) includes an air supply unit, an air supply pipe (21), a first purge nozzle (22), and a second purge nozzle (23). The air supply unit is connected to the input end of the air supply pipe (21). The air supply pipe (21) has two output ends, which are respectively connected to the first purge nozzle (22) and the second purge nozzle (23). The first purge nozzle (22) is disposed inside the first housing (11) and is used to purge the rotating gimbal (200). The second purge nozzle (23) is disposed inside the second housing (12) and is used to purge the lens (101).

2. The coal counting device according to claim 1, characterized in that, At least a portion of the second housing (12) has a transparent area that faces the lens (101).

3. The coal counting device according to claim 2, characterized in that, The inner wall of the transparent area is provided with an anti-fog heating film.

4. The coal counting device according to claim 1, characterized in that, The second cover (12) has an opening, and a cover (13) is movably connected to the second cover (12), the cover (13) being able to open or close the opening.

5. The coal counting device according to claim 4, characterized in that, The cover (13) and the second cover (12) are rotatably connected by a pivot (14). A drive member (15) is provided on the second cover (12). The drive member (15) is connected to the cover (13). The drive member (15) can drive the cover (13) to rotate around the pivot (14), thereby opening or closing the opening.

6. The coal counting device according to claim 4, characterized in that, The outer surface of the cover (13) extends in an arc shape.

7. The coal counting device according to claim 1, characterized in that, The first purge nozzle (22) is embedded in the inner wall of the first cover (11), and the air outlet of the first purge nozzle (22) is set at a first angle with the rotating gimbal (200).

8. The coal counting device according to claim 7, characterized in that, The first included angle is greater than or equal to 30 degrees and less than or equal to 45 degrees.

9. The coal counting device according to claim 1, characterized in that, Multiple first purge nozzles (22) are provided, and multiple first purge nozzles (22) are arranged at intervals along the circumference of the first cover (11) on the inner wall of the first cover (11).

10. The coal counting device according to claim 1, characterized in that, The second purge nozzle (23) is annular and surrounds the outer periphery of the lens (101). The second purge nozzle (23) has multiple air outlets, which are arranged at intervals along the circumference of the second purge nozzle (23) on the inner wall of the second purge nozzle (23).

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