Mining explosion-proof camera shooting structure and coal mining machine

Abstract

The utility model discloses a mining explosion-proof camera structure, which comprises a shell and a printed circuit board assembly, a camera is mounted on the shell, the printed circuit board assembly is mounted in the shell, and the shell is an explosion-proof shell and comprises a body and a cover plate detachably connected with the body. A light supplementing lamp assembly electrically connected with the power supply module of the printed circuit board assembly is arranged in the body; a protective net is arranged at the position, corresponding to the light supplementing lamp assembly, of the outer side of the body. An included angle larger than 0 degree and smaller than 30 degrees is formed between the cover plate and the supporting plate, opposite to the cover plate, of the body. The mining explosion-proof camera shooting structure can be installed on a rocker arm of a coal mining machine without affecting the operation performance of the rocker arm, the camera shooting condition can be met when the brightness of underground light is insufficient, the monitoring effect is improved, the shell has the explosion-proof performance, and the using requirement of underground equipment of a coal mine is met. In addition, the utility model further provides a coal mining machine with the mining explosion-proof camera shooting structure.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, in particular to a mine-used explosion-proof camera structure and a coal mining machine. Background Art

[0002] With the increasing automation of underground coal mining operations and the widespread use of various large-scale automated machinery and equipment, various potential accidents and hidden dangers in coal mining operations occur frequently, seriously endangering the safety of underground personnel and equipment. Therefore, there is an urgent need for a set of reliable on-site visualization equipment used in underground coal mines to monitor the work site, construction machinery, personnel flow, and vehicle scheduling, thereby providing on-site workers with a reliable and safe technical prevention method.

[0003] The existing technology often installs a camera on the outside of the coal mining machine so that the operator can monitor various parts of the coal mining machine when the coal mining machine is working, thereby fully understanding the underground production situation and the status of the coal mining machine. However, since the existing camera generally adopts a square structure, the camera cannot be installed on the rocker arm of the coal mining machine. On the one hand, if it is installed on the rocker arm, it will affect the accuracy of the coal mining machine operation, which is not conducive to improving the working efficiency of the coal mining machine; on the other hand, if it is installed on the rocker arm, the structure of the camera itself will make the camera angle have great limitations, making it difficult to meet the monitoring requirements. In addition, the existing camera is often affected by the low brightness of the working light during use, which affects the camera's shooting results, thereby reducing the effectiveness of the camera. Summary of the Invention

[0004] The purpose of this utility model is to solve the above problems and provide a coal mining machine and a mine explosion-proof camera structure. The mine explosion-proof camera structure is installed on the coal mining machine rocker arm without affecting the operating performance of the rocker arm. It can also meet the camera conditions when the brightness of the underground light is insufficient, thereby improving the monitoring effect. The shell has explosion-proof properties and meets the use requirements of underground equipment in coal mines.

[0005] To achieve the above-mentioned purpose of the utility model, the explosion-proof camera structure for mining of the utility model includes a shell on which a camera is mounted and a printed circuit board assembly installed in the shell, wherein the shell is a explosion-proof shell, including a main body and a cover plate detachably connected to the main body; a fill light assembly electrically connected to a power module of the printed circuit board assembly is arranged in the main body; a protective net is arranged on the outside of the main body at a position corresponding to the position of the fill light assembly; an angle greater than 0 degrees and less than 30 degrees is formed between the cover plate and a support plate of the main body opposite to the cover plate.

[0006] Preferably, the fill light assembly includes: an LED heat sink for mounting an LED light board thereon; a glass plate disposed within the body; and a fixing pressure plate detachably connected to the LED heat sink and for fixing the LED heat sink to the glass plate.

[0007] Preferably, a groove is provided on the inner wall of the support plate of the body, and the glass plate is placed in the groove.

[0008] Preferably, the protective net is installed on the outer wall of the support plate and corresponds to the position of the glass plate.

[0009] Preferably, the extension line of the cover plate along the length direction is parallel to the central axis of the camera, and the extension line of the support plate along the length direction forms an angle greater than 0 degree and less than 30 degrees with the central axis of the camera.

[0010] Preferably, a sealing groove is provided at the joint surface of the body for connecting with the cover plate, and a sealing ring is installed in the sealing groove.

[0011] Preferably, the electronic components of the printed circuit board assembly all have quick-connect connectors.

[0012] Preferably, the camera is installed at the end where the cover plate is relatively close to the supporting plate.

[0013] Preferably, the power lead of the printed circuit board assembly is located at the end where the cover plate and the support plate are relatively close.

[0014] In addition, the utility model also provides a coal mining machine, which includes the mining explosion-proof camera structure described above.

[0015] Compared with the existing technology, the mining explosion-proof camera structure and coal mining machine of the present invention have the following advantages:

[0016] 1. The utility model of the explosion-proof camera structure for mining can be installed on the rocker arm of the coal mining machine without affecting the operating performance of the rocker arm. It can also meet the camera conditions when the brightness of the underground light is insufficient, thereby improving the monitoring effect. The shell has explosion-proof properties, which meets the use requirements of underground equipment in coal mines.

[0017] 2. The utility model adopts a flameproof shell for the mining explosion-proof camera structure, which ensures the reliable operation of the camera in the harsh environment of flammable and explosive underground; a fill light assembly is installed in the shell, and a protective net is installed at the corresponding fill light assembly position outside the shell, which is conducive to the normal operation of the camera in the harsh environment under dark conditions; the LED light board is installed on the LED heat sink to ensure the long-term reliable operation of the LED light board; the flameproof shell cover is tilted relative to the support plate, so that the mining explosion-proof camera structure can be installed on the rocker arm to monitor the drum, and it has good coordination with the coal mining machine rocker arm, thereby improving the safety of coal mining by the coal mining machine; the electronic components of the printed circuit board assembly are all quick-plugged through wire plugs, which is conducive to the rapid installation and maintenance of the product.

[0018] The present invention will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the utility model mining explosion-proof camera structure;

[0020] Figure 2 This is a three-dimensional diagram of the explosion-proof camera structure for mining of the present invention (the mounting holes on the side panels are not shown). DETAILED DESCRIPTION

[0021] like Figure 1 、 Figure 2 The figures shown are schematic diagrams of different structures of the explosion-proof camera structure for mining of the present invention. As can be seen from the figures, the explosion-proof camera structure for mining of the present invention includes a shell on which a camera is mounted and a printed circuit board assembly (not shown in the figures) installed in the shell for controlling the operation of the camera, wherein the shell is a explosion-proof shell, including a main body 1 and a cover 8 detachably connected to the main body; a fill light assembly electrically connected to a power module of the printed circuit board assembly is provided in the main body; a protective net 11 is provided on the outside of the main body at a position corresponding to the position of the fill light assembly; an angle greater than 0 degrees and less than 30 degrees is formed between the cover and the support plate of the main body opposite to the cover.

[0022] Specifically, the main body of the explosion-proof enclosure of the present invention comprises a support plate 13, a front baffle 17 fixedly connected to the front end of the support plate (the front end refers to the end closest to the camera lens), a rear baffle 16 fixedly connected to the rear end of the support plate (the rear end refers to the end away from the camera lens), and a pair of side panels 15 fixedly connected to the support plate and the front and rear baffles, respectively. The rear ends of the side panels extend beyond the support plate and rear baffle, and threaded holes or through-holes may be provided in the extended portions for bolt connection to corresponding positions of the shearer's rocker arm. The front ends of the side panels each have downwardly extending lugs for bolting or pin connection to corresponding positions of the shearer's rocker arm. Each panel is made of stainless steel with a thickness of approximately 5 mm and welded together to form the main body. The upper surface of the main body is connected to the cover plate, and the junction between the two forms a flameproof joint, where a sealing ring is installed. During processing, a sealing groove can be provided on the top surface of the main body (such as the top surface of the side panel), and a silicone sealing ring can be installed in the sealing groove to ensure the enclosure is waterproof, thereby ensuring that the enclosure meets the design requirements for moisture resistance. The shell adopts a flameproof design to ensure the reliable operation of the explosion-proof mining camera structure in flammable and explosive environments. Furthermore, a flange can be welded to the top surface of the body, and the cover plate and the flange are connected by bolts. Accordingly, a sealing groove for installing a silicone sealing ring is provided on the surface of the flange. The utility model is mainly made of stainless steel, and the shell frame of the body is formed by welding with the flange surface. The structure is simple and strong. A sealing groove is provided at the flameproof joint surface of the flange and the cover plate. The sealing groove is equipped with a silicone sealing ring, which meets the requirements of the camera for reliable operation in the humid, flammable and explosive environment of the mine.

[0023] To ensure the camera operates reliably and reliably for extended periods in harsh, dark environments, the present invention incorporates a fill light assembly mounted at the rear of the explosion-proof housing. This assembly includes: an LED heat sink 3 on which an LED light board 2 is mounted. The LED light board serves as the fill light and is electrically connected to the power module of the printed circuit board assembly via wires; a glass plate 6, constructed of explosion-proof glass, positioned above a support plate within the housing. The glass plate is designed with a groove formed in the inner wall of the support plate, and a fixed pressure plate 4, removably connected to the LED heat sink and used to secure it to the glass plate. Furthermore, the assembly includes a rubber gasket 5 (referred to as a rubber gasket) mounted between the fixed pressure plate and the glass plate for shock absorption, and a copper gasket 7 (referred to as a copper gasket) mounted between the glass plate and the support plate.

[0024] During assembly, the LED light board, LED heat sink, fixed pressure plate, rubber pad, explosion-proof glass, and copper pad are installed on the support plate in order from top to bottom. They must meet the explosion-proof requirements of the shell. The fixed pressure plate not only compresses the glass plate but also takes into account the installation and fixation of the LED light board. The explosion-proof performance of the explosion-proof shell ensures the reliability of the fill light assembly when used underground. The LED light board is installed on the LED heat sink, which can greatly extend the working time of the LED light board and ensure the clarity of the camera. The protective net is installed at the corresponding fill light assembly position under the shell support plate to protect the fill light assembly, especially the LED light board, and prevent external objects from colliding with and damaging the LED light board, thereby extending the service life of the LED light board. At the same time, it can prevent a large amount of dust from entering the LED light board to avoid affecting its lighting effect, effectively ensuring the normal operation of the camera in the harsh environment of the mine.

[0025] In order to enable the mining explosion-proof camera structure to be installed on the rocker arm of the coal mining machine, to coordinate well with the rocker arm of the coal mining machine without affecting the operation of the rocker arm, to monitor the rocker arm roller of the coal mining machine, and to improve the safety of coal mining by the coal mining machine, the cover plate and the support plate of the explosion-proof housing of the utility model form an angle greater than 0 degrees and less than 30 degrees. During design, the extension line of the cover plate along the length direction is parallel to the central axis of the camera, and the extension line of the support plate along the length direction forms an angle greater than 0 degrees and less than 30 degrees with the central axis of the camera. During assembly, the camera is installed at the end of the cover plate that is relatively close to the support plate, that is, the cover plate is parallel to the camera, and the support plate is installed tilted relative to the cover plate from back to front.

[0026] Preferably, the angle between the cover plate and the support plate is 25 degrees, that is, the camera's illumination and imaging surfaces form a 25-degree angle with the back nameplate surface (i.e., the lower surface of the support plate). This allows the camera to be mounted on the rocker arm, meeting the design requirements for monitoring the roller, and avoiding the problem of traditional cameras being mounted on the rocker arm at an excessively large angle, making it impossible to monitor the traction roller and provide supplemental lighting.

[0027] To enable quick-connect functionality for the PCB assembly's electronic components, facilitating rapid installation and maintenance, each component features quick-connect wire connectors (referred to as quick-connect connectors). The PCB assembly's power leads are located closer to the cover and support plate, near the camera. The terminal assembly utilizes a conventional, conventional lead-out device, located on the side of the camera housing, outside the front baffle of the flameproof enclosure. This side-outlet arrangement provides a reasonable and accurate layout and facilitates rapid lead-out of the wires.

[0028] In summary, the installation of the fill light assembly of the present invention enables the camera to operate normally in the dark and complex environment underground without relying on other strong fill lights. The LED heat sink reduces the heat generated by the LED light board, prolongs the normal working time of the LED light board, and avoids the high temperature caused by long-term exposure affecting the clarity of the camera. The protective net installed on the outside of the shell can enhance the anti-destruction ability of the equipment and protect the integrity of the equipment. It also reduces the scattering and reflection of the fill light to a certain extent, and improves the accuracy of the lighting. It can be seen that the installation of the protective net greatly improves the reliability, safety, and stability of the equipment, and ensures the normal operation of the equipment in the harsh environment of the mine. The quick plug-in function of each electronic component and the universal wire outlet device make the camera have good quick installation and maintainability. The shell of the camera is at a 25-degree angle, which meets the monitoring needs of the drum when the equipment is installed at the rocker arm, ensuring the normal operation of the coal mining machine in the mine, which is very beneficial to the efficient operation of the coal mining machine.

[0029] In addition, the utility model also provides a coal mining machine, which includes the above-mentioned mining explosion-proof camera structure installed on the rocker arm of the coal mining machine. During installation, the above-mentioned mining explosion-proof camera structure can be installed at a suitable position on the rocker arm according to actual needs. Accordingly, a connecting ear plate corresponding to the ear plate position of the above-mentioned mining explosion-proof camera structure is provided on the rocker arm, and the corresponding ear plates are fixed together by bolts, so that the mining explosion-proof camera structure is fixed on the rocker arm and can move with the movement of the rocker arm, which does not hinder the normal operation of the rocker arm. The camera can also shoot at the drum. When the ambient light is insufficient, the fill light is controlled to turn on to provide fill light, thereby ensuring the normal and safe operation of the coal mining machine.

[0030] Although the utility model is described in detail above, the utility model is not limited thereto. Those skilled in the art can make modifications based on the principles of the utility model. Therefore, all modifications made in accordance with the principles of the utility model should be understood to fall within the scope of protection of the utility model.

Claims

1. A flameproof camera structure for mining, comprising a housing on which a camera is mounted and a printed circuit board assembly mounted within the housing, characterized in that: The housing is a flameproof housing, comprising a body and a cover detachably connected to the body; The body is provided with a fill light assembly electrically connected to the power module of the printed circuit board assembly; A protective net is provided on the outside of the main body at a position corresponding to the position of the fill light assembly; An included angle greater than 0 degrees and less than 30 degrees is formed between the cover plate and the supporting plate of the body opposite to the cover plate.

2. The explosion-proof camera structure for mining according to claim 1, characterized in that: The fill light assembly includes: an LED heat sink for mounting an LED light panel thereon; a glass plate disposed within the body; A fixing pressure plate that is detachably connected to the LED heat sink and is used to fix it on the glass plate.

3. The explosion-proof camera structure for mining according to claim 2, characterized in that: A groove is provided on the inner wall of the supporting plate of the body, and the glass plate is placed in the groove.

4. The explosion-proof camera structure for mining according to claim 3, characterized in that: The protective net is installed on the outer wall of the supporting plate and corresponds to the position of the glass plate.

5. The explosion-proof camera structure for mining according to any one of claims 1 to 4, characterized in that: The extension line of the cover plate along the length direction is parallel to the central axis of the camera, and the extension line of the support plate along the length direction forms an angle greater than 0 degree and less than 30 degrees with the central axis of the camera.

6. The explosion-proof camera structure for mining according to claim 1 or 5, characterized in that: A sealing groove is provided at the joint surface of the body for connecting with the cover plate, and a sealing ring is installed in the sealing groove.

7. The explosion-proof camera structure for mining according to claim 1, characterized in that: The electronic components of the printed circuit board assembly are all provided with quick-connect connectors.

8. The explosion-proof camera structure for mining according to claim 1, characterized in that: The camera is mounted on an end of the cover plate that is relatively close to the supporting plate.

9. The explosion-proof camera structure for mining according to claim 8, characterized in that: The power lead of the printed circuit board assembly is located at the end where the cover plate and the support plate are relatively close.

10. A coal mining machine, characterized in that: It comprises the explosion-proof camera structure for mining as described in any one of claims 1 to 9.

Images