Coal mine wireless measuring device integrating trajectory video and gamma measurement

Abstract

The application provides a coal mine wireless measuring device integrating trajectory video and gamma measurement, and relates to the technical field of coal mine drilling measurement. The device comprises a support assembly, which comprises a support base, a first connecting end of the support base is used for being connected with the end of a drill rod, a second connecting end and a support shell form a containing space therebetween, a measuring assembly is arranged on the support base, a cleaning assembly comprises a first adjusting unit, a second adjusting unit and a plurality of cleaning plates, the first adjusting unit comprises a cleaning sleeve rotatably connected between the support base and the support shell and a first driving structure installed on the support base, an installation sleeve is sleeved on a cleaning rod, and the cleaning rod is connected with the cleaning sleeve through a second elastic telescopic rod, a driving shaft of the first driving structure is in engagement connection with the cleaning sleeve, the second adjusting unit has a pushing part in contact with the side wall of the cleaning rod, efficient cleaning of the hole wall of the drill hole is realized from multiple directions, and the measurement accuracy is prevented from being disturbed by the gravel.

Description

Technical Field

[0001] This application generally relates to the field of coal mine borehole measurement technology, and specifically to a wireless measurement device for coal mines that integrates trajectory video and gamma measurement. Background Technology

[0002] In underground coal mine drilling projects, drilling is crucial for determining geological structures, coal seam thickness, mine water conditions, and for carrying out operations such as gas drainage and grouting reinforcement. However, traditional drilling often relies on the experience and skills of on-site personnel, leading to inaccurate borehole trajectory measurements and uncertain borehole locations. This results in blind spots for gas drainage and water exploration, posing potential hazards to coal mine safety.

[0003] Traditional wired measurement-while-drilling (MWD) systems have encountered numerous difficulties in underground coal mine operations, such as unstable and easily interrupted signals. These problems are primarily determined by the wired transmission of measurement signals and the drill bit's driving method, making them difficult to fundamentally solve. Therefore, to meet the needs of safe production and efficient drilling in coal mines, wireless borehole trajectory measurement devices have emerged. These devices utilize video and gamma measurement methods with wireless transmission to effectively measure the depth of the borehole trajectory. However, existing measurement devices are inconvenient for stable clearing of the borehole area, and some loose rocks can easily affect the measurements.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a wireless measurement device for coal mines that integrates trajectory video and gamma measurement to solve the problems mentioned in the background. The technical solution of the present invention provides a solution that is significantly different from the prior art, addressing the problem that the existing technical solutions are too simplistic.

[0006] This application provides a wireless measurement device for coal mines that integrates trajectory video and gamma measurement, including:

[0007] A support assembly includes a support base and a support housing for use in conjunction. The support base has a first connecting end and a second connecting end. The first connecting end is used to connect to the end of a drill rod. A receiving space is formed between the second connecting end and the support housing. A measuring component is provided on the support base. The measuring component is used to detect data inside the borehole. The data inside the borehole includes at least gamma ray data inside the borehole and image data inside the borehole.

[0008] A cleaning assembly includes: a first adjustment unit, a second adjustment unit, and a plurality of cleaning plates used in conjunction; the first adjustment unit includes a cleaning sleeve rotatably connected between the support base and the support housing, and a first drive structure mounted on the support base; one side of each cleaning plate forms a cleaning surface for contacting the inner wall of a borehole; the other side of each cleaning plate is provided with a cleaning rod that passes through the opening of the cleaning sleeve; an mounting sleeve is fitted onto the cleaning rod, and the mounting sleeve is connected to the cleaning sleeve via a second elastic telescopic rod; the inner side of the cleaning sleeve is slidably connected to the end of the cleaning rod, and its sliding direction is parallel to the axis of the support base; the drive shaft of the first drive structure is engaged with the cleaning sleeve; the second adjustment unit is disposed within the accommodating space and connected to the cleaning sleeve; the second adjustment unit has spaced-apart pushing portions that contact the side wall of the cleaning rod.

[0009] According to the technical solution provided in this application, it also includes: a position adjustment component disposed on the support housing;

[0010] The position adjustment component includes:

[0011] A position adjustment sleeve is fitted onto the support housing; an adjustment rod is provided inside the position adjustment sleeve, the adjustment rod passes through an opening on the support housing and extends into the receiving space; a movable positioning structure is provided on the position adjustment sleeve, the positioning structure is used to contact the inner wall of the borehole;

[0012] A screw rod passes through the support housing and is threadedly connected to the support housing; a second connecting end is provided with a mounting rod, the free end of which is rotatably connected to the end of the screw rod located within the receiving space; the screw rod and the adjusting rod are threadedly connected.

[0013] A connecting sleeve is fitted onto the mounting rod, and multiple connecting rods are provided between the connecting sleeve and the side wall of the adjusting rod; the outer diameter of the connecting sleeve increases from the side closer to the support base to the side closer to the adjusting rod.

[0014] Multiple inner rods, one end of which is in sliding contact with the connecting sleeve, and the other end of which is rotatably connected to the cleaning rod;

[0015] By applying an external force to drive the screw to rotate, the adjusting rod moves within the opening, causing the positioning structure and the cleaning plate to move radially along the support base synchronously, so that the cleaning plate can adapt to drill holes of different diameters.

[0016] According to the technical solution provided in this application, the positioning structure includes:

[0017] A first elastic telescopic rod passes through the side wall of the position adjustment sleeve; one end of the first elastic telescopic rod is connected to an abutment rod, and the other end is provided with a roller, which is used to make rolling contact with the inner wall of the borehole;

[0018] An abutment block is disposed on the outer wall of the support housing and located between the support housing and the position adjustment sleeve; the abutment block has an abutment slope, the abutment slope forms a first angle with the outer wall of the support housing, and the opening of the first angle faces the support base; the abutment block slides in contact with the abutment rod;

[0019] When the screw drives the adjusting rod to move within the opening, the abutting rod slides along the abutting inclined surface, thereby driving the first elastic telescopic rod and the roller to move radially along the supporting base.

[0020] According to the technical solution provided in this application, the second adjustment unit includes:

[0021] Installation disk, which is located within the receiving space and connected to the cleaning sleeve;

[0022] Multiple push bars are evenly distributed on the surface of the mounting plate away from the support base; the longitudinal section of each push bar is arc-shaped, and the surface of each push bar forms the push portion.

[0023] The push bar has a first push segment, a second push segment, and a third push segment that are smoothly connected in sequence; the thickness of the first push segment increases from the end away from the second push segment to the end closer to the second push segment, and the thickness of the third push segment decreases from the end closer to the second push segment to the end away from the second push segment.

[0024] According to the technical solution provided in this application, a toothed ring is sleeved on the support base, and one side of the toothed ring is connected to the cleaning sleeve;

[0025] The drive shaft end of the first drive structure is provided with a gear, which meshes with the gear ring.

[0026] According to the technical solution provided in this application, the supporting substrate includes:

[0027] The mounting base has a second connecting end formed at one end and a power supply base at the other end; the end of the power supply base away from the mounting base forms the first connecting end, which is used to connect to the end of the drill rod.

[0028] The power supply socket is electrically connected to the measuring component and is used to supply power to the measuring component.

[0029] According to the technical solution provided in this application, the measurement component includes:

[0030] A gamma measurement mechanism is disposed on the side wall of the mounting base, and the gamma measurement mechanism is used to detect gamma ray data in the borehole.

[0031] A camera mechanism is disposed on the side wall of the toothed ring and the camera end of the camera mechanism passes through the toothed ring. The camera end is used to collect image data inside the borehole.

[0032] A power receiving plate is mounted on the mounting base and is electrically connected to the shooting mechanism and the power supply base.

[0033] According to the technical solution provided in this application, the cleaning sleeve is provided with a rack on its inner side, and the length direction of the rack is parallel to the axis of the support base.

[0034] The cleaning rod is provided with a toothed roller at its end, and the toothed roller is engaged with the rack.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] This application provides a wireless measurement device for coal mines integrating trajectory video and gamma measurement, comprising: a support assembly, the support assembly including a supporting base and a supporting shell for cooperative use, the supporting base having a first connecting end and a second connecting end, the first connecting end being used to connect to the end of a drill rod; a receiving space being formed between the second connecting end and the supporting shell; a measurement component disposed on the supporting base, the measurement component being used to detect at least the data inside the borehole, the data inside the borehole including at least gamma ray data inside the borehole and image data inside the borehole; and a cleaning assembly, the cleaning assembly including: a first adjustment unit, a second adjustment unit, and a plurality of cleaning plates for cooperative use; the first adjustment unit includes a rotating... A cleaning sleeve is movably connected between a support base and a support shell, and a first drive structure is mounted on the support base. A cleaning surface is formed on one side of the cleaning plate for contacting the inner wall of the borehole. A cleaning rod is provided on the other side of the cleaning plate, and the cleaning rod passes through the opening of the cleaning sleeve. An installation sleeve is fitted on the cleaning rod, and the installation sleeve is connected to the cleaning sleeve through a second elastic telescopic rod. The inner side of the cleaning sleeve is slidably connected to the end of the cleaning rod, and its sliding direction is parallel to the axis of the support base. The drive shaft of the first drive structure is engaged with the cleaning sleeve. A second adjustment unit is disposed in the accommodating space and connected to the cleaning sleeve. The second adjustment unit has a pusher part arranged at intervals, and the pusher part contacts the side wall of the cleaning rod.

[0037] This application achieves stable support by connecting the support assembly to the drill rod. The measuring assembly simultaneously detects borehole internal image data and gamma-ray data, enabling comprehensive acquisition of borehole internal information. Simultaneously, the cleaning assembly drives the cleaning sleeve to rotate via the first adjusting unit. This, combined with the intermittent sliding contact between the pushing part of the second adjusting unit and the cleaning rod, causes the cleaning plate to reciprocate and rotate while revolving around the center of the borehole. This achieves efficient cleaning of the borehole wall from multiple directions, avoiding interference from debris with measurement accuracy. Furthermore, the sliding connection between the cleaning rod and the cleaning sleeve, along with the elastic cooperation of the second elastic telescopic rod, allows the device to adapt to different borehole wall conditions, improving its adaptability, cleaning effect, and the accuracy of measurement data in coal mine borehole measurements. Attached Figure Description

[0038] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the cross-sectional structure of the cleaning sleeve of the present invention;

[0041] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0042] Figure 4 For the present invention Figure 1 Top view of the lower center cleaning plate;

[0043] Figure 5 For the present invention Figure 1 A schematic diagram of the right-side view distribution of the push bar;

[0044] Figure 6 For the present invention Figure 1 A top-down view of the push bar at the top center.

[0045] The diagram shows the following components: 1. Mounting base; 2. Power supply base; 3. Gamma measuring mechanism; 4. Position adjustment sleeve; 5. First elastic telescopic rod; 6. Roller; 71. Screw; 72. Adjusting rod; 73. Contact block; 74. Contact rod; 8. Cleaning sleeve; 9. Cleaning rod; 91. Second elastic telescopic rod; 92. Mounting sleeve; 10. Cleaning plate; 111. Mounting rod; 112. Mounting plate; 113. Push bar; 114. Toothed roller; 115. Rack; 121. Inner rod; 122. Connecting sleeve; 123. Connecting rod; 13. Toothed ring; 14. Gear; 15. Shooting mechanism; 16. Power receiving plate. Detailed Implementation

[0046] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] like Figure 1 As shown, this application provides a wireless measurement device for coal mines that integrates trajectory video and gamma measurement, comprising:

[0049] The support assembly includes a support base and a support shell for use in conjunction. The support base has a first connecting end and a second connecting end. The first connecting end is used to connect to the end of the drill pipe. An accommodating space is formed between the second connecting end of the support base and the support shell. A measuring component is provided on the support base for detecting data inside the borehole. The data inside the borehole includes at least gamma ray data inside the borehole and image data inside the borehole.

[0050] The cleaning assembly includes: a first adjustment unit, a second adjustment unit, and multiple cleaning plates 10 used in conjunction; the first adjustment unit includes a cleaning sleeve 8 rotatably connected between a support base and a support housing, and a first drive structure mounted on the support base; one side of the cleaning plate 10 forms a cleaning surface for contacting the inner wall of the borehole; the other side of the cleaning plate 10 is provided with a cleaning rod 9, which passes through the opening of the cleaning sleeve 8; an mounting sleeve 92 is fitted on the cleaning rod 9, and the mounting sleeve 92 is connected to the cleaning sleeve 8 through a second elastic telescopic rod 91; the inner side of the cleaning sleeve 8 is slidably connected to the end of the cleaning rod 9, and its sliding direction is parallel to the axis of the support base; the drive shaft of the first drive structure is engaged with the cleaning sleeve 8; the second adjustment unit is disposed within the accommodating space and connected to the cleaning sleeve 8; the second adjustment unit has a spaced-apart pushing part that contacts the side wall of the cleaning rod 9.

[0051] It should be noted that the support assembly is the basic load-bearing structure of this device, used to connect the drill rod, the load-bearing measuring assembly, and the cleaning assembly. The support base has a first connecting end and a second connecting end. The first connecting end connects directly to the end of the drill rod, securing the device to the drilling equipment and allowing the device to penetrate the borehole synchronously with the drill rod. The connection method between the support base and the drill rod is not limited here. The second connecting end mates with the support shell, forming a receiving space for installing the cleaning assembly. This receiving space provides protection and spatial isolation. Here, as... Figure 1As shown, the support base includes: a mounting base 1, one end of which forms a second connecting end, and the other end of which is provided with a power supply base 2; the mounting base 1 is used to support the measuring component and the cleaning component. The end of the power supply base 2 away from the mounting base 1 forms a first connecting end, which is used to connect to the end of the drill pipe; the power supply base 2 is electrically connected to the measuring component and is used to supply power to the measuring component. Here, the power supply base 2 obtains power from the drill pipe or its own power source.

[0052] Furthermore, such as Figure 1 and Figure 2 As shown, the measurement components include:

[0053] Gamma measuring mechanism 3 is mounted on the side wall of mounting base 1. It is used to detect gamma ray data within the borehole. Here, the detection direction of gamma measuring mechanism 3 faces the inner wall of the borehole and the surrounding rock strata to ensure effective reception of gamma rays within the borehole. In coal mine geology, the natural gamma ray radiation intensity varies among different rock strata (such as coal seams and rock layers). By analyzing the data collected by gamma measuring mechanism 3, it is possible to help determine the geological structures traversed by the borehole (such as coal seam thickness and rock strata distribution), identify faults or aquifers, and other key geological information, providing a geological basis for safe coal mining.

[0054] A camera mechanism 15 is mounted on the side wall of the toothed ring 13, with its camera end penetrating the ring 13. This camera end is used to acquire image data from inside the borehole; for example, it can be a camera. The camera end of the camera mechanism 15 penetrates the toothed ring 13 and rotates with it, allowing for 360° video or image acquisition of the borehole's inner wall without blind spots. By continuously acquiring images from inside the borehole and combining them with borehole depth information, the actual borehole trajectory (such as curvature and direction) can be deduced, solving the problem of inaccurate trajectory measurement in traditional drilling.

[0055] A power receiving plate 16 is mounted on the mounting base 1 and is electrically connected to the shooting mechanism 15 and the power supply base 2. The power receiving plate 16 is used to transmit the power input from the power supply base 2 to the shooting mechanism 15. The power receiving plate 16 is made of conductive metal and connected to the internal circuit. It has a disc-shaped structure, so that when the shooting mechanism 15 rotates, the metal contacts connected to the end of the shooting mechanism 15 can always be in contact with the power receiving plate 16, supplying power to the shooting mechanism 15 through the principle of metal conductivity, similar to the principle of a slip ring, to achieve power supply during rotation.

[0056] The number of cleaning plates 10 can be multiple, and the number can be set according to the actual situation. The cleaning rod 9 serves as the basic component connecting the cleaning plates 10 to each adjustment unit, and is used to transmit different adjustment forces to the cleaning plates 10, enabling them to perform different movement processes. For example... Figure 4As shown, the cleaning plate 10 is inclined in the horizontal position to facilitate cleaning the inner wall of the drill hole.

[0057] The first adjustment unit includes a cleaning sleeve 8 and a first drive structure. The cleaning sleeve 8 is rotatably connected between the support base and the support housing. Figure 1 As shown, the outer wall of the support base and the outer wall of the support shell are respectively provided with limiting grooves. The two edges of the cleaning sleeve 8 are bent to form annular protrusions. The annular protrusions are connected to the limiting grooves one by one, so that the cleaning sleeve 8 can rotate relative to the support base and the support shell. An opening is provided on the side wall of the cleaning sleeve 8. The length of the opening in the direction parallel to the axis of the support base is greater than the diameter of the cleaning rod 9, so that the cleaning rod 9 can slide in the opening in the direction parallel to the axis of the support base.

[0058] The first drive structure is, for example, a motor, which is mounted on the mounting base 1. The connection between the drive shaft of the first drive structure and the cleaning sleeve 8 is, for example, that a gear ring 13 is rotatably fitted onto the support base, with one side of the gear ring 13 connected to the cleaning sleeve 8; a gear 14 is provided at the end of the drive shaft of the first drive structure, and the gear 14 meshes with the gear ring 13, thereby achieving the meshing connection between the drive shaft of the first drive structure and the cleaning sleeve 8. The first drive structure is used to drive the cleaning sleeve 8 to rotate around the axis of the support base, thereby driving the cleaning rod 9 and the cleaning plate 10 to rotate around the axis of the support base, that is, around the center line of the borehole.

[0059] The second adjustment unit is installed within the accommodating space formed by the support base and the support shell, and is connected to the cleaning sleeve 8. The second adjustment unit rotates synchronously with the rotation of the cleaning sleeve 8. Figure 3 As shown, a mounting sleeve 92 is fitted onto the cleaning rod 9, which is connected to the cleaning sleeve 8 via a second elastic telescopic rod 91. The extension direction of the second elastic telescopic rod 91 is parallel to the axial direction of the supporting base. One end of the second elastic telescopic rod 91 is fixed to the outer wall of the cleaning sleeve 8 via a fixing connecting rod, and the other end, which is its telescopic end, is connected to the mounting sleeve 92. Alternatively, the mounting sleeve 92 can be rotatably fitted onto the cleaning rod 9 with the telescopic end of the second elastic telescopic rod 91 fixedly connected to the mounting sleeve 92, or the mounting sleeve 92 can be fixedly fitted onto the cleaning rod 9 with the telescopic end of the second elastic telescopic rod 91 movably connected to the mounting sleeve 92. This application adopts the second method. The second elastic telescopic rod 91 can buffer the rigid contact between the cleaning plate 10 and the inner wall of the borehole, and simultaneously drive the cleaning rod 9 to reset when the pushing part is released. When the second adjustment unit rotates with the cleaning sleeve 8, multiple spaced push parts will alternately squeeze or release the cleaning rod 9, causing the cleaning rod 9 to slide back and forth along the axis of the support base. Combined with the elastic reset function of the second elastic telescopic rod 91, it will drive the cleaning plate 10 to move back and forth along the hole wall axially, thereby expanding the cleaning range.

[0060] Specifically, such as Figure 2 and Figure 5As shown, the second adjustment unit includes:

[0061] Installation disk 112, which is located within the receiving space and connected to the cleaning sleeve 8;

[0062] Multiple push bars 113 are evenly distributed on the surface of the mounting plate 112 away from the support base; the longitudinal section of the push bar 113 is arc-shaped, and the surface of the push bar 113 forms a push part;

[0063] The push bar 113 has a first push segment, a second push segment, and a third push segment that are smoothly connected in sequence; the thickness of the first push segment increases from the end away from the second push segment to the end closer to the second push segment, the second push segment is a straight segment, and the thickness of the third push segment decreases from the end closer to the second push segment to the end away from the second push segment.

[0064] The mounting plate 112 is located within the accommodating space formed by the support base and the support shell, and is fixedly connected to the cleaning sleeve 8, so that the mounting plate 112 can rotate synchronously around the axis of the support base with the rotation of the cleaning sleeve 8, that is, it is consistent with the revolution of the cleaning component, providing stable rotational power for the push bar 113.

[0065] like Figure 6 As shown, the surface of the pusher bar 113 forms a pusher section for direct contact with the sidewall of the cleaning rod 9. The pusher bar 113 has a first pusher section, a second pusher section, and a third pusher section that are smoothly connected in sequence. Here, the thickness of the first pusher section gradually increases from the end away from the second pusher section to the end closer to the second pusher section. When the cleaning rod 9 contacts the first pusher section during its revolution, it is pushed away by the gradually thickening surface, thus moving the cleaning rod 9 away from the support base along the axis of the support base. The second pusher section is located between the first and third pusher sections and is the thickest part of the pusher bar 113. When the cleaning rod 9 contacts the second pusher section, the movement distance reaches its maximum, which stabilizes the contact pressure between the cleaning plate 10 and the inner wall of the borehole. The thickness of the third pusher section gradually decreases from the end closer to the second pusher section to the end away from the second pusher section. When the cleaning rod 9 moves away from the second pushing section and contacts the third pushing section during revolution, it will gradually retract as the thickness of the third pushing section decreases under the elastic restoring force of the second elastic telescopic rod 91, thus driving the cleaning rod 9 to move along the axis of the support base towards the support base.

[0066] The rotation of the mounting plate 112 drives the pusher bar 113 to move synchronously. By utilizing the intermittent contact between the pusher bar 113, which has a three-segment thickness variation, and the cleaning rod 9, the rotational motion is converted into the axial reciprocating motion of the cleaning rod 9. Ultimately, the cleaning plate 10 revolves around the center of the borehole while scraping back and forth along the borehole wall axially, effectively removing gravel and dust from different locations and avoiding impurities from interfering with the image acquisition and gamma ray detection accuracy of the measurement components.

[0067] In addition, the arc design of the push bar 113 and its cooperation with the second elastic telescopic rod 91 can adapt to the unevenness of the borehole inner wall, ensuring that the cleaning plate 10 always maintains effective contact with the borehole inner wall, thus improving the adaptability of this device in complex drilling environments.

[0068] Furthermore, such as Figure 2 As shown, a rack 115 is provided on the inner side of the cleaning sleeve 8, and the length direction of the rack 115 is parallel to the axis of the support base.

[0069] The end of the cleaning rod 9 is provided with a toothed roller 114, which is engaged with the rack 115.

[0070] The rack 115 is disposed on the inner wall of the cleaning sleeve 8, and its length direction is parallel to the axis of the support base, that is, it extends along the depth direction of the borehole. The rack 115 can revolve synchronously with the cleaning sleeve 8 around the axis of the support base, but it does not generate axial movement or rotation itself. The rack 115 serves as the sliding track for the toothed roller 114. When the toothed roller 114 moves relative to the rack 115, the teeth of the rack 115 will generate a reaction force on the toothed roller 114, forcing the toothed roller 114 to rotate, thereby converting the axial movement of the cleaning rod 9 into its own rotational power.

[0071] The toothed roller 114 is fixed at the end of the cleaning rod 9 near the receiving space. It can revolve around the axis of the support base with the cleaning rod 9, or reciprocate along the axis of the support base with the cleaning rod 9.

[0072] Here, the meshing of the rack 115 and the toothed roller 114 is an added rotation function based on the revolution driven by the first adjustment unit and the reciprocating movement driven by the second adjustment unit. The three work together to form a three-dimensional cleaning mode, which allows the cleaning surface of the cleaning plate 10 to contact the inner wall of the borehole from multiple directions (circumferential, axial, and angular). This effectively removes impurities such as gravel and dust attached to the borehole wall at different angles, avoiding cleaning dead angles caused by a single cleaning direction, further improving the thoroughness of borehole wall cleaning, providing a clearer detection environment for the measuring components, and ensuring the accuracy of the measurement data.

[0073] Furthermore, the measuring device also includes: a position adjustment assembly disposed on the support housing; such as Figure 1 As shown, the position adjustment component includes:

[0074] Position adjustment sleeve 4 is fitted onto the support housing; position adjustment sleeve 4 is provided with adjustment rod 72, which passes through the opening on the support housing and extends into the receiving space; position adjustment sleeve 4 is provided with a movable positioning structure, which is used to contact the inner wall of the borehole.

[0075] The screw 71 passes through the support housing and is threadedly connected to the support housing; the second connecting end of the support base is provided with a mounting rod 111, the free end of the mounting rod 111 and the end of the screw 71 located in the receiving space are rotatably connected; the screw 71 and the adjusting rod 72 are threadedly connected.

[0076] A connecting sleeve 122 is fitted onto the mounting rod 111. Multiple connecting rods 123 are provided between the connecting sleeve 122 and the side wall of the adjusting rod 72. The outer diameter of the connecting sleeve 122 increases from the side closer to the support base to the side closer to the adjusting rod 72.

[0077] Multiple inner rods 121, one end of which is in sliding contact with the connecting sleeve 122, and the other end of which is rotatably connected to the cleaning rod 9;

[0078] By applying external force to drive the screw 71 to rotate, the adjusting rod 72 moves within the opening, so that the positioning structure and the cleaning plate 10 move synchronously along the radial direction of the supporting base, so that the cleaning plate 10 can be adapted to drill holes of different diameters.

[0079] It should be noted that the position adjustment sleeve 4 is fitted onto the support housing and can slide relative to the support housing. The adjustment rod 72 passes through the opening on the support housing and extends into the receiving space. The length of the opening on the support housing in the direction parallel to the axis of the support base is greater than the diameter of the adjustment rod 72, so that the adjustment rod 72 can slide within the opening in a direction parallel to the axis of the support base. A movable positioning structure is installed on the side wall of the position adjustment sleeve 4. The positioning structure is in direct contact with the inner wall of the borehole and is used to assist the device in centering its position within the borehole and to prevent shaking. The screw 71 moves through the support housing, and its central axis is collinear with the axis of the support base. The screw 71 passes through the adjustment rod 72 and is threadedly connected to the adjustment rod 72. The screw can convert rotational motion into linear motion through the threaded connection, that is, the adjustment rod 72 moves along the axis of the support base by rotating on its own. One end of the screw 71 is located outside the support housing, facilitating the application of external force to drive the screw 71 to rotate. The other end of the screw 71 extends into the receiving space and is rotatably connected to the mounting rod 111 at the second connection end of the support base. The mounting rod 111 provides stable support for the screw 71. Here, the tool for driving the screw 71 to rotate is, for example, a wrench. The type of screw 71 is, for example, a screw structure with a self-locking function. After the radial position of the positioning structure and the cleaning plate 10 is adjusted, the current position can be restricted by this screw structure to prevent the cleaning plate 10 or the positioning structure from moving radially along the support base, thus affecting the cleaning or inspection effect.

[0080] The connecting sleeve 122 is fitted onto the mounting rod 111 and can slide along the mounting rod 111. The outer diameter of the connecting sleeve 122 increases progressively; specifically, the outer diameter of the connecting sleeve 122 gradually thickens from the side closer to the support base to the side closer to the adjusting rod 72, forming a structure similar to a frustum of a cone. The connecting rod 123 connects the connecting sleeve 122 and the adjusting rod 72. When the adjusting rod 72 moves axially, the connecting rod 123 drives the connecting sleeve 122 to slide synchronously along the mounting rod 111.

[0081] One end of the inner rod 121 slides in contact with the outer wall of the connecting sleeve 122, and the other end of the inner rod 121 is rotatably connected to the cleaning rod 9 through a bearing. The function of the inner rod 121 is that when it is pushed by the movement of the connecting sleeve 122, it can drive the cleaning rod 9 to move radially along the support base, adjust the vertical position of the cleaning plate 10, so that the cleaning plate 10 can contact the inner wall of the drill hole of different specifications. At the same time, when the cleaning rod 9 moves laterally and rotates through the rack 115 and the toothed roller 114, the bearing connection between the cleaning rod 9 and the inner rod 121 will not affect the position of the inner rod 121. This allows the inner rod 121 to accurately transmit the position adjustment force when adjusting the position of the positioning structure, and to maintain a stable connection when the cleaning rod 9 moves in multiple directions, ensuring the overall reliability of the device.

[0082] The aforementioned position adjustment component drives the cleaning plate 10 and the positioning structure to move synchronously along the radial direction of the support base, ensuring that both remain in contact with the inner wall of the borehole and preventing cleaning omissions or device wobbling due to changes in borehole diameter. Furthermore, the movement distance of both is controlled by the rotation amplitude of the screw 71 to accommodate coal mine boreholes of different diameters, improving the versatility of the device.

[0083] In addition, the positioning structure includes:

[0084] The first elastic telescopic rod 5 passes through the side wall of the position adjustment sleeve 4; one end of the first elastic telescopic rod 5 is connected to an abutment rod 74, and the other end is provided with a roller 6, which is used to roll in contact with the inner wall of the borehole.

[0085] The abutment block 73 is disposed on the outer wall of the support housing and located between the support housing and the position adjustment sleeve 4; the abutment block 73 has an abutment slope, which forms a first angle with the outer wall of the support housing, and the opening of the first angle faces the support base; the abutment block 73 is in sliding contact with the abutment rod 74;

[0086] When the screw 71 drives the adjusting rod 72 to move within the opening, it drives the position adjusting sleeve 4 to move in a direction parallel to the axis of the support base, thereby driving the abutting rod 74 to slide along the abutting inclined surface, and then driving the first elastic telescopic rod 5 and the roller 6 to move radially along the support base.

[0087] It should be noted that the first elastic telescopic rod 5 penetrates the side wall of the position adjustment sleeve 4 and can extend and retract radially along the support base; the two ends of the first elastic telescopic rod 5 are respectively connected to the abutment rod 74 and the roller 6. The first elastic telescopic rod 5 has elasticity (such as a built-in spring), which can provide cushioning when the roller 6 contacts the inner wall of the borehole, avoiding rigid collisions that could damage the components, while ensuring that the roller 6 always fits against the borehole wall.

[0088] The roller 6 is installed at the end of the first elastic telescopic rod 5 outside the position adjustment sleeve 4. The roller 6 rolls in contact with the inner wall of the borehole, which can reduce the resistance between the device and the borehole wall when the device moves with the drill rod, and at the same time reduce the wear on the inner wall of the borehole, and avoid the device from jamming due to excessive friction.

[0089] The abutment block 73 is fixed to the outer wall of the support housing and is located between the support housing and the position adjustment sleeve 4. The abutment block 73 has an abutment slope that forms a first angle with the outer wall of the support housing, with the opening of the first angle facing the support base. The upper surface of the abutment block 73 is the abutment slope, which gradually slopes outward from the side closer to the support base towards the side farther from the support base. The abutment slope and the abutment rod 74 always maintain sliding contact, and the axial movement of the abutment rod 74 is converted into radial thrust by the change in the slope of the slope.

[0090] When the screw 71 rotates and drives the adjusting rod 72 to move axially along the opening of the support housing, the adjusting rod 72 simultaneously drives the position adjusting sleeve 4 to slide relative to the support housing, thereby driving the abutting rod 74 on the inner side of the first elastic telescopic rod 5 to move synchronously. Since the abutting rod 74 is in contact with the abutting slope of the abutting block 73, and the slope is a fixed inclined structure, if the position adjusting sleeve 4 moves towards the support base, the abutting rod 74 slides along the abutting slope from the low slope area to the high slope area. The abutting slope will generate an outward radial thrust on the abutting rod 74, thereby driving the roller 6 to move radially outward along the support base. If the position adjusting sleeve 4 moves away from the support base, the abutting rod 74 slides along the slope from the high slope area to the low slope area. Under the action of the elastic restoring force of the first elastic telescopic rod 5, the abutting rod 74 retracts inward, thereby driving the roller 6 to move radially inward along the support base to accommodate drilling of smaller diameter holes.

[0091] The working process of this device is as follows:

[0092] During measurement, the drill bit is first removed from the drill rod, and the power supply base 2 is fixed to the drill rod. The drill rod is pushed into the borehole, which in turn moves the power supply base 2 and the mounting base 1 into the borehole for measurement. The trajectory and image are measured by the gamma measurement mechanism 3 and the imaging mechanism 15. The wireless transmission module built into the mounting base 1 transmits the signal to an external receiving device on the ground. During this process, the circumferentially distributed rollers 6 contact the borehole wall and, in conjunction with the elastic extension and retraction of the first elastic telescopic rod 5, push the first elastic telescopic rod 5 to extend and retract and then return to its original position when encountering gravel, ensuring the stable movement of the mounting base 1. Furthermore, the gear 14 is rotated by the motor, and the gear... Ring 13 drives the cleaning sleeve 8 to rotate on the mounting base 1, causing the cleaning rod 9 to drive the cleaning plate 10 to contact the hole wall. The rotation of the cleaning rod 9 contacts the push bar 113 on the mounting plate 112, and it moves laterally under force. When the cleaning rod 9 separates from the push bar 113, the second elastic telescopic rod 91 pushes the cleaning rod 9 to reset. At the same time, the movement of the cleaning rod 9 drives the toothed roller 114 to roll along the rack 115, thereby driving the cleaning rod 9 and the cleaning plate 10 to rotate while moving. This allows the cleaning plate 10 to have a motion trajectory of revolution, lateral movement and rotation, cleaning and pushing the gravel off the hole wall from multiple directions to avoid affecting the shooting effect. Meanwhile, the mounting sleeve 92 on the cleaning rod 9 rotates at the end of the second elastic telescopic rod 91 without affecting the reset of the cleaning rod 9. When the shooting mechanism 15 rotates with the toothed ring 13 to shoot, it is always in contact with the power receiving plate 16. The power receiving plate 16 is electrically connected to the power supply base 2 through the built-in circuit, so that the shooting mechanism 15 can be powered during rotation. The use of the shooting mechanism 15 is composed of a camera and its accessories, which can be achieved using existing technology.

[0093] When drilling holes of different diameters, rotating the screw 71 causes the adjusting rod 72 and the position adjusting sleeve 4 to move, making the contact rod 74 contact the inclined surface of the contact block 73. This pushes the inner end of the first elastic telescopic rod 5 to move outward, thereby adjusting the position of the roller 6 so that it can contact and position itself against the hole wall. The movement of the adjusting rod 72 drives the connecting sleeve 122 to move through the connecting rod 123. The inclined surface of the connecting sleeve 122 contacts the inner rod 121, pushing the toothed roller 114, the cleaning rod 9, and the cleaning plate 10 to move, adjusting the initial position of the cleaning plate 10 so that it can clean the hole walls of different diameters. Here, in order to accommodate the cleaning rod 9 being moved by the connecting sleeve 122 during subsequent lateral movement, a rubber layer is laid on the outside of the cleaning plate 10, giving it a certain compressibility and deformation capacity. This allows the cleaning plate 10 to adapt to the adjustment effect of the connecting sleeve 122 during subsequent revolution, lateral movement, and rotation.

[0094] This application also provides a wireless measurement method for coal mines integrating trajectory video and gamma measurement, implemented based on the aforementioned wireless measurement device for coal mines integrating trajectory video and gamma measurement. The method includes the following steps:

[0095] S100. Connect the support base of the support assembly to the end of the drill pipe, and control the gamma measurement mechanism 3 and the imaging mechanism 15 to be in standby mode.

[0096] The device is fixed to the drill rod end by the first connecting end of the supporting base, ensuring that the device enters the borehole synchronously with the drill rod, and the connection strength is sufficient to resist the vibration and friction in the borehole.

[0097] The gamma measurement mechanism 3 and the imaging mechanism 15 are temporarily shut down or operate at low power to avoid collecting invalid data when the device is not in place, thus saving power.

[0098] S200. Based on the diameter of the borehole to be measured, adjust the position of the cleaning plate 10 along the radial direction of the support base using the position adjustment component until the cleaning surface of the cleaning plate 10 matches the inner wall of the borehole to be measured.

[0099] Here, the screw 71 of the position adjustment component is rotated by external force, and through the transmission structure such as the adjustment rod 72, connecting sleeve 122, and inner rod 121, the cleaning plate 10 is driven to move radially along the support base. At the same time, the roller 6 of the positioning structure moves radially in sync, ensuring that the device is centered and stable. Furthermore, the cleaning surface of the cleaning plate 10 can just make contact with the inner wall of the drill hole, which ensures the cleaning effect and avoids excessive pressure that would cause wear. This allows the device to adapt to drill holes of different diameters, ensuring that cleaning and measurement operations can be effectively carried out under various hole diameters.

[0100] S300: The first drive structure is activated, and its drive shaft drives the cleaning sleeve 8 to rotate around the axis of the support base. Simultaneously, the cleaning sleeve 8 drives the cleaning rod 9 and the cleaning plate 10 to revolve around the axis of the support base. At the same time, the mounting plate 112 of the second adjustment unit rotates synchronously with the cleaning sleeve 8, so that the push bar 113 on the mounting plate 112 alternately contacts the side wall of the cleaning rod 9, driving the cleaning plate 10 to reciprocate. Furthermore, the toothed roller 114 at the end of the cleaning rod 9 rotates relative to the rack 115 inside the cleaning sleeve 8, driving the cleaning plate 10 to rotate around the axis of the cleaning rod 9, so that the cleaning surface of the cleaning plate 10 cleans the inner wall of the borehole to be measured from different directions.

[0101] In this system, the drive shaft of the first drive structure meshes with the gear ring 13 via gear 14, causing the cleaning sleeve 8 to rotate around the axis of the support base. Simultaneously, this causes the cleaning rod 9 and the cleaning plate 10 to revolve around the center of the borehole, covering the circumference of the borehole wall. The mounting plate 112 of the second adjustment unit rotates synchronously with the cleaning sleeve 8. Each push bar 113 alternately contacts the cleaning rod 9 and, in conjunction with the elastic reset of the second elastic telescopic rod 91, causes the cleaning plate 10 to reciprocate axially along the support base, covering the axial range of the borehole wall. The toothed roller 114 at the end of the cleaning rod 9 meshes with the rack 115 inside the cleaning sleeve 8. When the cleaning rod 9 moves axially, the toothed roller 114 rotates relative to the rack 115, causing the cleaning plate 10 to rotate around its own axis.

[0102] This step thoroughly cleans the borehole walls of debris and dust from three dimensions: circumference, axis, and angle, to prevent impurities from interfering with subsequent measurements.

[0103] S400. During the cleaning operation, the imaging mechanism 15 is synchronously driven to rotate with the gear ring 13. The imaging mechanism 15 is used to collect images of the inside of the borehole to be measured from all directions, obtain image data of the inside of the borehole, and send the image data of the inside of the borehole to an external receiving device. In addition, the gamma measurement mechanism 3 detects the gamma ray data in the borehole to be measured in real time and sends the gamma ray data to the external receiving device.

[0104] The imaging mechanism 15 rotates synchronously with the gear ring 13, acquiring 360° image data of the borehole wall and transmitting it in real time to an external receiving device; here, the external receiving device is, for example, a ground monitoring terminal. The gamma measurement mechanism 3 continuously detects gamma ray data within the borehole and wirelessly transmits the gamma ray data to the external receiving device. The external receiving device combines the image data and gamma ray data from inside the borehole to comprehensively determine the borehole trajectory, borehole wall condition, and underground geological information.

[0105] This application utilizes the composite motion mode of the cleaning plate 10 to ensure thorough cleaning of the borehole wall without any blind spots; simultaneously, it acquires image data and gamma-ray data in parallel, comprehensively reflecting the borehole trajectory and geological information, ultimately providing accurate trajectory parameters and geological data for coal mine drilling construction, reducing safety hazards such as blind spots in gas drainage and water exploration, and contributing to safe coal mine production.

[0106] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A wireless measurement device for coal mines integrating trajectory video and gamma measurement, characterized in that, include: A support assembly includes a support base and a support housing for use in conjunction. The support base has a first connecting end and a second connecting end. The first connecting end is used to connect to the end of a drill rod. A receiving space is formed between the second connecting end and the support housing. A measuring component is provided on the support base for detecting data inside the borehole. The data inside the borehole includes at least gamma ray data and image data inside the borehole. A cleaning assembly includes: a first adjustment unit, a second adjustment unit, and a plurality of cleaning plates (10) used in conjunction; the first adjustment unit includes a cleaning sleeve (8) rotatably connected between the support base and the support housing, and a first drive structure mounted on the support base; a cleaning surface is formed on one side of the cleaning plate (10), the cleaning surface being used to contact the inner wall of the borehole; a cleaning rod (9) is provided on the other side of the cleaning plate (10), the cleaning rod (9) passing through the opening of the cleaning sleeve (8); an mounting sleeve (92) is fitted on the cleaning rod (9), and the mounting sleeve (92) is connected to the cleaning sleeve (8) through a second elastic telescopic rod (91); the inner side of the cleaning sleeve (8) is slidably connected to the end of the cleaning rod (9), and its sliding direction is parallel to the axis of the support base; the drive shaft of the first drive structure is meshed with the cleaning sleeve (8); the second adjustment unit is disposed in the accommodating space and connected to the cleaning sleeve (8); the second adjustment unit has a pusher portion spaced apart, the pusher portion contacting the side wall of the cleaning rod (9); It also includes: a position adjustment assembly disposed on the support housing; The position adjustment component includes: A position adjustment sleeve (4) is fitted onto the support housing; an adjustment rod (72) is provided inside the position adjustment sleeve (4), the adjustment rod (72) passes through the opening on the support housing and extends into the receiving space; a movable positioning structure is provided on the position adjustment sleeve (4), the positioning structure is used to contact the inner wall of the borehole; A screw (71) passes through the support housing and is threadedly connected to the support housing; a mounting rod (111) is provided at the second connection end, and the free end of the mounting rod (111) and the end of the screw (71) located in the accommodating space are rotatably connected; the screw (71) and the adjusting rod (72) are threadedly connected. A connecting sleeve (122) is fitted onto the mounting rod (111), and multiple connecting rods (123) are provided between the side wall of the connecting sleeve (122) and the adjusting rod (72); the outer diameter of the connecting sleeve (122) increases from the side closer to the support base to the side closer to the adjusting rod (72); Multiple inner rods (121), one end of which is in sliding contact with the connecting sleeve (122), and the other end is rotatably connected to the cleaning rod (9); By applying external force to drive the screw (71) to rotate, the adjusting rod (72) moves within the opening, so that the positioning structure and the cleaning plate (10) move synchronously along the radial direction of the support base, so that the cleaning plate (10) can be adapted to drill holes of different diameters; The positioning structure includes: The first elastic telescopic rod (5) passes through the side wall of the position adjustment sleeve (4); one end of the first elastic telescopic rod (5) is connected to an abutment rod (74), and the other end is provided with a roller (6), which is used to roll in contact with the inner wall of the borehole. A contact block (73) is disposed on the outer wall of the support housing and located between the support housing and the position adjustment sleeve (4); the contact block (73) has a contact slope, the contact slope forms a first angle with the outer wall of the support housing, and the opening of the first angle faces the support base; the contact block (73) slides in contact with the contact rod (74); When the screw (71) drives the adjusting rod (72) to move within the opening, the abutting rod (74) slides along the abutting inclined surface, thereby driving the first elastic telescopic rod (5) and the roller (6) to move radially along the supporting base; The second adjustment unit includes: Installation plate (112), which is located within the receiving space and connected to the cleaning sleeve (8); Multiple push bars (113) are evenly distributed on the surface of the mounting plate (112) away from the support base; the longitudinal section of the push bar (113) is arc-shaped, and the surface of the push bar (113) forms the push portion; The push bar (113) has a first push segment, a second push segment and a third push segment connected in sequence; the thickness of the first push segment increases from the end away from the second push segment to the end closer to the second push segment, and the thickness of the third push segment decreases from the end closer to the second push segment to the end away from the second push segment.

2. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 1, characterized in that, A toothed ring (13) is fitted on the support base, and one side of the toothed ring (13) is connected to the cleaning sleeve (8); The drive shaft end of the first drive structure is provided with a gear (14), which meshes with the gear ring (13).

3. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 2, characterized in that, The supporting matrix includes: Mounting base (1), one end of which forms the second connecting end, and the other end is provided with a power supply base (2); the end of the power supply base (2) away from the mounting base (1) forms the first connecting end, which is used to connect to the end of the drill rod; The power supply socket (2) is electrically connected to the measuring component and is used to supply power to the measuring component.

4. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 3, characterized in that, The measurement component includes: Gamma measuring mechanism (3), the gamma measuring mechanism (3) is disposed on the side wall of the mounting base (1), the gamma measuring mechanism (3) is used to detect gamma ray data in the borehole; A shooting mechanism (15) is provided on the side wall of the toothed ring (13) and the shooting end of the shooting mechanism (15) passes through the toothed ring (13). The shooting end is used to collect image data inside the borehole. The power receiving plate (16) is mounted on the mounting base (1) and is electrically connected to the shooting mechanism (15) and the power supply base (2).

5. A wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 1, characterized in that, The cleaning sleeve (8) is provided with a rack (115) on its inner side, and the length direction of the rack (115) is parallel to the axis of the support base. The cleaning rod (9) is provided with a toothed roller (114) at its end, and the toothed roller (114) is engaged with the rack (115).

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