Coal mine wireless measuring device integrating track video and gamma measurement

Abstract

The invention provides a coal mine wireless measuring device integrating track video and gamma measurement, and relates to the technical field of coal mine drilling measurement, the device comprises a supporting assembly, the supporting assembly comprises a supporting base body, the first connecting end of the supporting base body is used for being connected with the end of a drill rod, and a containing space is formed between the second connecting end and a supporting shell; a measuring assembly is arranged on the supporting base body; the 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 rotationally connected between the supporting base body and the supporting shell and a first driving structure installed on the supporting base body. The cleaning rod is sleeved with a mounting sleeve and connected with the cleaning sleeve through a second elastic telescopic rod. A driving shaft of the first driving structure is in meshed connection with the cleaning sleeve; the second adjusting unit is provided with a pushing part making contact with the side wall of the cleaning rod. The hole wall of the drill hole can be efficiently cleaned from multiple directions, and gravel is prevented from interfering with the measurement precision.

Description

TECHNICAL FIELD

[0001] The present application generally relates to the technical field of coal mine drilling measurement, and particularly relates to a coal mine wireless measurement device integrating trajectory video and gamma measurement. BACKGROUND

[0002] In the coal mine drilling engineering, in order to explore the information of geological structure, coal seam thickness, mine water condition and so on, and to carry out gas extraction, grouting reinforcement and other operations, drilling construction becomes particularly important. However, the traditional drilling construction often relies on the experience and technology of the on-site staff, which leads to inaccurate measurement of drilling trajectory, uncertain drilling position, and further causes gas extraction blind area, water exploration and drainage blind area and other phenomena, which brings hidden dangers to the safety production of coal mine.

[0003] The traditional wired drilling measurement system encounters many difficulties in the use process in the coal mine, such as unstable signal, signal interruption and other problems, which are mainly determined by the wired transmission of measurement signal and the driving mode of drill bit, and it is difficult to fundamentally solve. Therefore, in order to meet the needs of safety production and efficient drilling of coal mine, the coal mine drilling wireless trajectory measurement device emerges as the times require, which can effectively measure the depth of drilling trajectory through the video and gamma measurement method and wireless transmission. However, the existing measurement device is not convenient for stable cleaning of the hole area, and some debris can affect the measurement.

[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original. SUMMARY

[0005] In view of the above defects or deficiencies in the prior art, it is expected to provide a coal mine wireless measurement device integrating trajectory video and gamma measurement to solve the problems raised in the background technology. The technical scheme of the present application provides a solution significantly different from the prior art.

[0006] The present application provides a coal mine wireless measurement device integrating trajectory video and gamma measurement, comprising: A support assembly, the support assembly comprises a support base and a support shell used in cooperation, the support base has a first connecting end and a second connecting end, the first connecting end is used for connecting with the end of the drill rod; a containing space is formed between the second connecting end and the support shell; a measurement assembly is arranged on the support base, the measurement assembly is used at least for detecting internal data of the drill hole; the internal data of the drill hole at least includes gamma ray data in the drill hole and image data in the internal part of the drill hole; The cleaning assembly comprises a first adjusting unit, a second adjusting unit and a plurality of cleaning plates used in cooperation; the first adjusting unit comprises a cleaning sleeve rotationally connected between the support base and the support shell and a first driving structure installed on the support base; one side of the cleaning plate is provided with a cleaning surface used for contacting the inner wall of a drill hole; the other side of the cleaning plate is provided with a cleaning rod penetrating through an opening of the cleaning sleeve; an installation sleeve is sleeved on the cleaning rod, and the installation sleeve is connected with the cleaning sleeve through a second elastic telescopic rod; the inner side of the cleaning sleeve is slidably connected with the end of the cleaning rod, and the sliding direction is parallel to the axis of the support base; the driving shaft of the first driving structure is in meshing connection with the cleaning sleeve; the second adjusting unit is arranged in the containing space and connected with the cleaning sleeve; the second adjusting unit is provided with a plurality of push parts arranged at intervals, and the push parts are in contact with the side wall of the cleaning rod.

[0007] According to the technical scheme provided in the application, the position adjusting assembly is arranged on the support shell. The position adjusting assembly comprises: A position adjusting sleeve is sleeved on the support shell; an adjusting rod is arranged in the position adjusting sleeve, the adjusting rod penetrates through an opening on the support shell and extends into the containing space; a movable positioning structure is arranged on the position adjusting sleeve, and the positioning structure is used for contacting the inner wall of a drill hole; A screw rod penetrates through the support shell and is in threaded connection with the support shell; the second connecting end is provided with an installation rod, the free end of the installation rod and the end of the screw rod located in the containing space are rotationally connected; the screw rod and the adjusting rod are in threaded connection; A connecting sleeve is sleeved on the installation rod, a plurality of connecting rods are arranged between the connecting sleeve and the side wall of the adjusting rod; the outer diameter of the connecting sleeve increases from the side close to the support base to the side close to the adjusting rod; A plurality of inner rods are in sliding contact with the connecting sleeve at one end and are in rotational connection with the cleaning rod at the other end; By applying an external force to drive the screw rod to rotate, the adjusting rod is driven to move in the opening, so that the positioning structure and the cleaning plate move radially along the support base synchronously, so that the cleaning plate is adapted to drill holes with different diameters.

[0008] According to the technical scheme provided in the application, the positioning structure comprises: A first elastic telescopic rod penetrates through the side wall of the position adjusting sleeve; a resisting rod is connected to one end of the first elastic telescopic rod, and a roller is arranged at the other end, and the roller is used for rolling contact with the inner wall of a drill hole; The abutting block is arranged on the outer wall of the support shell and between the support shell and the position adjusting sleeve. The abutting block has an abutting slope, which forms a first included angle with the outer wall of the support shell. The first included angle opens towards the support base. The abutting block is in sliding contact with the abutting rod. When the screw rod drives the adjusting rod to move in the opening, the abutting rod slides along the abutting slope, thereby driving the first elastic telescopic rod and the roller to move radially along the support base.

[0009] According to the technical scheme provided in the application, the second adjusting unit comprises: The mounting disc is arranged in the containing space and connected with the cleaning sleeve. A plurality of pushing strips are arranged on the surface of the mounting disc away from the support base. The longitudinal section of the pushing strip is arc-shaped, and the surface of the pushing strip forms the pushing part. The pushing strip has a first pushing section, a second pushing section and a third pushing section which are sequentially and smoothly connected. The thickness of the first pushing section increases from the end away from the second pushing section to the end close to the second pushing section. The thickness of the third pushing section decreases from the end close to the second pushing section to the end away from the second pushing section.

[0010] According to the technical scheme provided in the application, a gear ring is arranged on the support base. One side of the gear ring is connected with the cleaning sleeve. The end of the drive shaft of the first driving structure is provided with a gear, which is meshingly connected with the gear ring.

[0011] According to the technical scheme provided in the application, the support base comprises: The mounting seat has one end forming the second connecting end and the other end provided with a power supply seat. The end of the power supply seat away from the mounting seat forms the first connecting end for being connected with the end of the drill rod. The power supply seat is electrically connected with the measuring assembly for supplying power to the measuring assembly.

[0012] According to the technical scheme provided in the application, the measuring assembly comprises: A gamma measurement mechanism is arranged on the side wall of the mounting seat. The gamma measurement mechanism is used for detecting gamma ray data in the drill hole. A shooting mechanism is arranged on the side wall of the gear ring. The shooting end of the shooting mechanism penetrates through the gear ring. The shooting end is used for collecting image data inside the drill hole. An electricity receiving disc is arranged on the mounting seat. The electricity receiving disc is electrically connected with the shooting mechanism and the power supply seat.

[0013] According to the technical scheme provided in the application, the inner side of the cleaning sleeve is provided with a rack, and the length direction of the rack is arranged in parallel with the axis of the support base body; The end of the cleaning rod is provided with a toothed roller, and the toothed roller is engagedly connected with the rack.

[0014] Compared with the prior art, the application has the following beneficial effects: The application provides a coal mine wireless measurement device integrating trajectory video and gamma measurement, which comprises a support assembly, a support base body and a support shell which are used in cooperation, the support base body has a first connecting end and a second connecting end, the first connecting end is used for being connected with the end of a drill rod, a containing space is formed between the second connecting end and the support shell, a measurement assembly is arranged on the support base body, the measurement assembly is used for detecting at least internal data of a drill hole, the internal data of the drill hole at least comprises gamma ray data in the drill hole and image data in the drill hole, and a cleaning assembly is arranged, the cleaning assembly comprises a first adjusting unit, a second adjusting unit and a plurality of cleaning plates which are used in cooperation, the first adjusting unit comprises a cleaning sleeve which is rotatably connected between the support base body and the support shell and a first driving structure which is installed on the support base body, one side of the cleaning plate forms a cleaning surface which is used for being in contact with the inner wall of the drill hole, the other side of the cleaning plate is provided with a cleaning rod which penetrates through the opening of the cleaning sleeve, an installation sleeve is arranged on the cleaning rod and connected with the cleaning sleeve through a second elastic telescopic rod, the inner side of the cleaning sleeve is slidably connected with the end of the cleaning rod, the sliding direction is parallel with the axis of the support base body, the driving shaft of the first driving structure is engagedly connected with the cleaning sleeve, the second adjusting unit is arranged in the containing space and connected with the cleaning sleeve, and the second adjusting unit has a plurality of push parts which are arranged at intervals and in contact with the side wall of the cleaning rod.

[0015] The support assembly is connected with the drill rod to realize stable support, the measurement assembly is used to synchronously detect the image data in the drill hole and the gamma ray data, and the internal information of the drill hole can be comprehensively obtained; meanwhile, the cleaning assembly drives the cleaning sleeve to rotate through the first adjusting unit, the push part of the second adjusting unit is intermittently in sliding contact with the cleaning rod, the cleaning plate is driven to realize the reciprocating movement and rotation while revolving, the hole wall of the drill hole is efficiently cleaned from multiple directions, the measurement accuracy is not affected by the interference of the broken stones, and the sliding connection between the cleaning rod and the cleaning sleeve and the elastic cooperation of the second elastic telescopic rod can also adapt the device to different hole wall conditions, improve the adaptability, cleaning effect and measurement data accuracy of the device in the coal mine drill hole measurement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other characteristics, objects and advantages of the application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the accompanying drawings.

[0017] Figure 1It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the cleaning sleeve of the application; Figure 3 It is a schematic diagram of the overall structure of the application Figure 2 It is a schematic diagram of the enlarged structure at A in the application; Figure 4 It is a schematic diagram of the overall structure of the application Figure 1 It is a schematic diagram of the cleaning plate from below in the application; Figure 5 It is a schematic diagram of the overall structure of the application Figure 1 It is a schematic diagram of the right side view of the push bar in the application; Figure 6 It is a schematic diagram of the overall structure of the application Figure 1 It is a schematic diagram of the push bar from above in the application.

[0018] In the figure, 1 is a mounting seat, 2 is a power supply seat, 3 is a gamma measurement mechanism, 4 is a position adjustment sleeve, 5 is a first elastic telescopic rod, 6 is a roller, 71 is a screw rod, 72 is an adjustment rod, 73 is a contact block, 74 is a contact rod, 8 is a cleaning sleeve, 9 is a cleaning rod, 91 is a second elastic telescopic rod, 92 is a mounting sleeve, 10 is a cleaning plate, 111 is a mounting rod, 112 is a mounting disc, 113 is a push bar, 114 is a toothed roller, 115 is a toothed rack, 121 is an inner rod, 122 is a connecting sleeve, 123 is a connecting rod, 13 is a toothed ring, 14 is a gear, 15 is a shooting mechanism, and 16 is an electricity receiving disc. DETAILED DESCRIPTION

[0019] The application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not limiting to the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description.

[0020] It should be noted that the examples in the application and the features in the examples can be combined with each other without conflict. The application will be described in detail below with reference to the accompanying drawings and examples.

[0021] As shown in Figure 1 The application provides a coal mine wireless measurement device integrating trajectory video and gamma measurement, which comprises: The support assembly comprises a support base and a support shell used in cooperation, the support base has a first connecting end and a second connecting end, the first connecting end is used for connecting with the end of the drill rod; a containing space is formed between the second connecting end of the support base and the support shell; a measurement assembly is arranged on the support base, the measurement assembly is used for detecting internal data of the drill hole; the internal data of the drill hole at least comprises gamma ray data in the drill hole and image data inside the drill hole; The cleaning assembly comprises: a first adjusting unit, a second adjusting unit and a plurality of cleaning plates 10 used in cooperation; the first adjusting unit comprises a cleaning sleeve 8 rotatably connected between the support base and the support shell and a first driving structure installed on the support base; one side of the cleaning plate 10 is provided with 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 penetrating through the opening of the cleaning sleeve 8; the cleaning rod 9 is sleeved with a mounting sleeve 92, and the mounting sleeve 92 is connected with the cleaning sleeve 8 through a second elastic expansion rod 91; the inner side of the cleaning sleeve 8 is slidably connected with the end of the cleaning rod 9, and the sliding direction is parallel to the axis of the support base; the driving shaft of the first driving structure is engaged with the cleaning sleeve 8; the second adjusting unit is arranged in the accommodation space and connected with the cleaning sleeve 8; the second adjusting unit has a plurality of push parts arranged at intervals, and the push parts are in contact with the side wall of the cleaning rod 9.

[0022] It should be noted that the support assembly is the basic bearing structure of the device, which is used to connect the drill rod, bear the measuring assembly and the cleaning assembly, etc. The support base has a first connecting end and a second connecting end, the first connecting end is directly connected with the end of the drill rod, realizing the fixation of the device and the drilling equipment, so that the device can be synchronously deepened into the borehole with the drill rod. Here, the connection mode of the support base and the drill rod is not limited. The second connecting end cooperates with the support shell, and an accommodation space is formed therebetween for installing the cleaning assembly. The accommodation space plays a protective and space isolation role. Here, as shown in Figure 1 , the support base comprises: a mounting seat 1, one end of the mounting seat 1 forms the second connecting end, and the other end is provided with a power supply seat 2; the mounting seat 1 is used to bear the measuring assembly and the cleaning assembly. The end of the power supply seat 2 away from the mounting seat 1 forms the first connecting end, which is used to be connected with the end of the drill rod; the power supply seat 2 is electrically connected with the measuring assembly, and is used to supply power for the measuring assembly. Here, the power supply seat 2 obtains power through the drill rod or the power source carried by itself.

[0023] Further, as shown in Figure 1 and Figure 2 , the measuring assembly comprises: a gamma measurement mechanism 3 arranged on the side wall of the mounting seat 1, the gamma measurement mechanism 3 is used to detect the gamma ray data in the borehole; here, the detection direction of the gamma measurement mechanism 3 faces the inner wall of the borehole and the surrounding rock stratum, so as to ensure that the gamma rays in the borehole can be effectively received. In the coal mine geology, the natural gamma ray radiation intensity of different rock strata (such as coal seam and rock stratum) is different. By analyzing the data collected by the gamma measurement mechanism 3, the geological structure (such as the thickness of the coal seam and the distribution of the rock stratum) through which the borehole passes, the key geological information such as the fault or the aquifer can be identified, and the geological basis for the safe mining of the coal mine is provided.

[0024] The photographing mechanism 15 is arranged on the side wall of the gear ring 13, and a photographing end of the photographing mechanism 15 penetrates the gear ring 13 and is used to collect image data inside the borehole; for example, the photographing mechanism 15 is a camera. The photographing end of the photographing mechanism 15 penetrates the gear ring 13 and can rotate with the rotation of the gear ring 13, and is used to collect a 360° video or image of the inner wall of the borehole. Through the continuously collected borehole image, combined with the borehole depth information, the actual trajectory (such as the bending degree and the strike) of the borehole can be deduced, so as to solve the problem that the trajectory cannot be accurately measured in the traditional drilling.

[0025] The power connection disc 16 is arranged on the mounting seat 1, and is electrically connected with the photographing mechanism 15 and the power supply seat 2. The power connection disc 16 is used to transmit the power input by the power supply seat 2 to the photographing mechanism 15. The power connection disc 16 is made of a conductive metal material and is connected with an internal circuit. The power connection disc 16 has a disc-shaped structure, so that the metal contact at the end of the photographing mechanism 15 can always be in contact with the power connection disc 16 when the photographing mechanism 15 rotates. The photographing mechanism 15 is powered by the metal conduction principle, and the power supply is realized in the rotating process, which is similar to the principle of a slip ring.

[0026] The number of the cleaning plates 10 is multiple, which can be set according to actual conditions. The cleaning rod 9 is a basic component for connecting the cleaning plate 10 and each adjusting unit, and is used to transmit different adjusting forces to the cleaning plate 10, so that the cleaning plate 10 can perform different movement processes. Figure 4 As shown in the figure, the cleaning plate 10 is inclined in the transverse position, which is convenient for cleaning the inner wall of the borehole.

[0027] The first adjusting unit includes the cleaning sleeve 8 and a first driving structure. The cleaning sleeve 8 is rotationally connected between the support base body and the support shell. Figure 1 As shown in the figure, the outer wall of the support base body and the outer wall of the support shell are respectively provided with limiting sliding grooves, and the two edges of the cleaning sleeve 8 are respectively bent to form annular protrusions. The annular protrusions are connected with the limiting sliding grooves one by one, so that the cleaning sleeve 8 can rotate relative to the support base body and the support shell. An opening is formed in the side wall of the cleaning sleeve 8, and the length of the opening in the direction parallel to the axis of the support base body 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 body.

[0028] The first driving structure is, for example, an electric motor mounted on the mounting base 1. The first driving structure is connected to the cleaning sleeve 8 by, for example, rotating a tooth ring 13 on the support base and connecting one side of the tooth ring 13 to the cleaning sleeve 8, and by providing a gear 14 on the end of the driving shaft of the first driving structure and connecting the gear 14 to the tooth ring 13, thereby achieving the meshing connection between the driving shaft of the first driving structure and the cleaning sleeve 8. The first driving 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, i.e., around the center line of the drill hole.

[0029] The second adjusting unit is mounted in the accommodating space formed by the support base and the support shell, and is connected to the cleaning sleeve 8, and the second adjusting unit rotates synchronously with the rotation of the cleaning sleeve 8. As shown in Figure 3 The cleaning rod 9 is sleeved with a mounting sleeve 92, which is connected to the cleaning sleeve 8 by a second elastic telescopic rod 91, and the extension direction of the second elastic telescopic rod 91 is parallel to the axis direction of the support base. One end of the second elastic telescopic rod 91 is fixed to the outer wall of the cleaning sleeve 8 by a fixed connecting rod, and the other end, i.e., the telescopic end, is connected to the mounting sleeve 92. The mounting sleeve 92 can be rotatably sleeved on the cleaning rod 9 and the telescopic end of the second elastic telescopic rod 91 can be fixedly connected to the mounting sleeve 92, or the mounting sleeve 92 can be fixedly sleeved on the cleaning rod 9 and the telescopic end of the second elastic telescopic rod 91 can be movably connected to the mounting sleeve 92. The second elastic telescopic rod 91 can buffer the rigid contact between the cleaning plate 10 and the inner wall of the drill hole, and can also drive the cleaning rod 9 to return to the original position when the pushing part is loosened. When the second adjusting unit rotates with the cleaning sleeve 8, the multiple spaced pushing parts will alternately press or loosen the cleaning rod 9, so that the cleaning rod 9 reciprocally slides along the axis direction of the support base, and then, in combination with the elastic return function of the second elastic telescopic rod 91, the cleaning plate 10 is driven to reciprocally move along the axial direction of the hole wall, thereby achieving the purpose of expanding the cleaning range.

[0030] Specifically, as shown in Figure 2 and Figure 5 The second adjusting unit comprises: a mounting disc 112, which is located in the accommodating space and is connected to the cleaning sleeve 8; a plurality of pushing strips 113, which are uniformly arranged on the surface of the mounting disc 112 away from the support base; the longitudinal section of the pushing strip 113 is arc-shaped, and the surface of the pushing strip 113 forms a pushing part; The pushing strip 113 has a first pushing section, a second pushing section and a third pushing section which are smoothly connected in sequence. The thickness of the first pushing section increases from one end away from the second pushing section to one end close to the second pushing section, the second pushing section is a flat section, and the thickness of the third pushing section decreases from one end close to the second pushing section to one end away from the second pushing section.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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; The end of the cleaning rod 9 is provided with a toothed roller 114, which is engaged with the rack 115.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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: 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. 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. 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. 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; The screw 71 is driven to rotate by applying an external force, and the adjusting rod 72 is driven to move in the opening, so that the positioning structure and the cleaning plate 10 are synchronously moved radially along the support base body, so that the cleaning plate 10 is adapted to different hole diameters of the drill hole.

[0040] It should be noted that the position adjusting sleeve 4 is sleeved on the support shell and can slide relative to the support shell. The adjusting rod 72 penetrates the opening on the support shell and extends into the containing space. The length of the opening on the support shell in the direction parallel to the axis of the support base body is greater than the diameter of the adjusting rod 72, so that the adjusting rod 72 can slide in the opening in the direction parallel to the axis of the support base body. The side wall of the position adjusting sleeve 4 is provided with a movable positioning structure, which is in direct contact with the inner wall of the drill hole, and is used to assist the device in being centrally positioned in the drill hole and avoiding shaking. The screw 71 movably penetrates the support shell, and the central axis thereof is collinear with the axis of the support base body. The screw 71 penetrates the adjusting rod 72 and is threadedly connected with the adjusting rod 72. The rotation motion can be converted into linear motion through thread cooperation, that is, the adjusting rod 72 is driven to move along the axis of the support base body by rotating the screw 71. One end of the screw 71 is located outside the support shell, which is convenient for applying an external force to drive the screw 71 to rotate. The other end of the screw 71 extends into the containing space and is rotatably connected with the mounting rod 111 at the second connecting end of the support base body. The mounting rod 111 is used to provide 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 limited by the screw structure, so that the cleaning plate 10 or the positioning structure is prevented from moving radially along the support base body, which affects the cleaning or detection effect.

[0041] The connecting sleeve 122 is sleeved on the mounting rod 111 and can slide along the mounting rod 111. The outer diameter of the connecting sleeve 122 is in an increasing form. Specifically, the outer diameter of the connecting sleeve 122 gradually increases from the side close to the support base body to the side close to the adjusting rod 72, forming a structure similar to a circular truncated cone. The connecting rod 123 is connected between the connecting sleeve 122 and the adjusting rod 72. When the adjusting rod 72 moves axially, the connecting sleeve 122 is driven to slide along the mounting rod 111 synchronously through the connecting rod 123.

[0042] One end of the inner rod 121 is in sliding 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 inner rod 121 is used to drive the cleaning rod 9 to move along the radial direction of the support base when the connecting sleeve 122 moves, thereby adjusting 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. When the cleaning rod 9 moves transversely and rotates through the rack 115 and the pinion 114, the bearing connection between the cleaning rod 9 and the inner rod 121 does not affect the position of the inner rod 121, so that the inner rod 121 can accurately transmit the position adjustment force when adjusting the position of the positioning structure, and can maintain stable connection when the cleaning rod 9 moves in multiple directions, ensuring the reliability of the device as a whole.

[0043] The position adjustment assembly drives the cleaning plate 10 and the positioning structure to move radially along the support base at the same time, ensuring that they are always in contact with the inner wall of the drill hole, avoiding cleaning omission or device shaking due to changes in hole diameter. The rotation amplitude of the screw 71 controls the movement distance of the two, so as to adapt to coal mine drill holes of different diameters and improve the versatility of the device.

[0044] In addition, the positioning structure comprises: The first elastic telescopic rod 5 penetrates the side wall of the position adjustment sleeve 4. One end of the first elastic telescopic rod 5 is connected with the abutting rod 74, and the other end is provided with the roller 6, which is used for rolling contact with the inner wall of the drill hole. The abutting block 73 is arranged on the outer wall of the support shell and located between the support shell and the position adjustment sleeve 4. The abutting block 73 has an abutting inclined surface, which forms a first included angle with the outer wall of the support shell. The opening of the first included angle faces the support base. The abutting block 73 is in sliding contact with the abutting rod 74. When the screw 71 drives the adjusting rod 72 to move in the opening, it drives the position adjustment sleeve 4 to move along the direction parallel to the axis of the support base, thereby driving the abutting rod 74 to slide along the abutting inclined surface, and further driving the first elastic telescopic rod 5 and the roller 6 to move radially along the support base.

[0045] It should be noted that the first elastic telescopic rod 5 penetrates the side wall of the position adjustment sleeve 4 and can stretch radially along the support base. The two ends of the first elastic telescopic rod 5 are respectively connected with the abutting rod 74 and the roller 6. The first elastic telescopic rod 5 has elasticity (such as an internal spring), which can provide buffering when the roller 6 contacts the inner wall of the drill hole, avoiding rigid collision and causing damage to the components, while ensuring that the roller 6 always fits the hole wall.

[0046] The roller 6 is installed at the end of the first elastic telescopic rod 5 outside the position adjustment sleeve 4, and the roller 6 is in rolling contact with the inner wall of the drill hole, which can reduce the resistance between the device and the hole wall when the drill rod moves, and reduce the wear of the inner wall of the drill hole, avoiding device jamming due to excessive friction.

[0047] The abutting block 73 is fixed on the outer wall of the support shell and is located between the support shell and the position adjusting sleeve 4. The abutting block 73 has an abutting slope which forms a first included angle with the outer wall of the support shell, and the opening of the first included angle faces the support base. The upper surface of the abutting block 73 is the abutting slope which gradually inclines outward from the side close to the support base to the direction away from the support base. The abutting slope is always in sliding contact with the abutting rod 74, and the axial movement of the abutting rod 74 is converted into radial thrust through the slope change of the abutting slope.

[0048] When the screw rod 71 rotates and drives the adjusting rod 72 to move axially along the opening of the support shell, the adjusting rod 72 synchronously drives the position adjusting sleeve 4 to slide relative to the support shell, and further drives the abutting rod 74 inside 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 to the high slope area, and 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 to the low slope area, and under the action of the elastic restoring force of the first elastic telescopic rod 5, the abutting rod 74 is retracted inward, thereby driving the roller 6 to move radially inward along the support base to adapt to the smaller diameter drill hole.

[0049] The working process of the device is as follows: When measuring, first remove the drill bit on the drill rod, fix the power supply seat 2 on the drill rod, push the drill rod into the drill hole, drive the power supply seat 2 and the mounting seat 1 into the drill hole to measure, and use the wireless transmission module built in the mounting seat 1 to transmit signals to the external receiving equipment on the ground. In the process, the circumferentially distributed rollers 6 are in contact with the hole wall, and the elastic extension and retraction of the first elastic extension rod 5 are matched, so that the rollers 6 push the first elastic extension rod 5 to extend and reset when encountering gravel, ensuring the stable travel of the mounting seat 1. Further, the motor drives the gear 14 to rotate, the cleaning sleeve 8 is driven by the gear ring 13 to rotate on the mounting seat 1, so that the cleaning rod 9 drives the cleaning plate 10 to contact the hole wall, the rotation of the cleaning rod 9 contacts the pushing strip 113 on the mounting disc 112 and moves horizontally under stress, and when the cleaning rod 9 is separated from the pushing strip 113, the second elastic extension rod 91 pushes the cleaning rod 9 to reset. At the same time, through the movement of the cleaning rod 9, the gear roller 114 is rolled along the rack 115, so that the cleaning rod 9 and the cleaning plate 10 can rotate while moving, so that the cleaning plate 10 has the motion trajectory of revolution, horizontal movement and rotation, and the hole wall gravel is cleaned and pushed off from multiple directions, avoiding affecting the shooting effect. At the same time, the mounting sleeve 92 on the cleaning rod 9 rotates at the end of the second elastic extension rod 91, which does not affect the resetting of the cleaning rod 9. When the shooting mechanism 15 rotates for shooting, it is always in contact with the power receiving disc 16, and the power receiving disc 16 is electrically connected with the power supply seat 2 through the built-in circuit, so that the shooting mechanism 15 can be powered during rotation. The shooting mechanism 15 is composed of a camera and its accessories, which can be realized by using existing technology.

[0050] When the drill hole with different diameters is suitable, the screw rod 71 is rotated, the screw rod 71 drives the adjusting rod 72 and the position adjusting sleeve 4 to move, so that the abutting rod 74 is in contact with the inclined surface of the abutting block 73, the inner end of the first elastic extension rod 5 is pushed to move outward, and then the position of the roller 6 is adjusted to be in contact with the hole wall. The movement of the adjusting rod 72 drives the connecting sleeve 122 to move through the connecting rod 123, the connecting sleeve 122 is in contact with the inner rod 121 through the inclined surface, the gear roller 114, the cleaning rod 9 and the cleaning plate 10 are pushed to move, and the initial position of the cleaning plate 10 is adjusted to clean the hole wall with different diameters. Here, in order to adapt to the movement of the cleaning rod 9 in the subsequent horizontal movement, a rubber layer is laid outside the cleaning plate 10, so that it has a certain compression deformation ability, and the cleaning plate 10 can adapt to the adjustment effect of the connecting sleeve 122 during subsequent revolution, horizontal movement and rotation.

[0051] The application also provides a coal mine wireless measurement method integrating trajectory video and gamma measurement, which is realized based on the above-described coal mine wireless measurement device integrating trajectory video and gamma measurement, and comprises the following steps. S100, connecting the support base of the support assembly with the drill rod end, and controlling the gamma measurement mechanism 3 and the shooting mechanism 15 to be in standby state.

[0052] The first connecting end of the support base is fixed with the drill rod end, so that the device can enter the drill hole synchronously with the drill rod, and the connection strength is sufficient to resist the vibration and friction force in the drill hole.

[0053] The gamma measurement mechanism 3 and the shooting mechanism 15 are temporarily closed or run in low power consumption mode, so as to avoid collecting invalid data when the device is not in place and save power.

[0054] S200, adjusting the position of the cleaning plate 10 along the radial direction of the support base by using the position adjusting assembly according to the hole diameter of the drill hole to be measured, until the cleaning surface of the cleaning plate 10 is matched with the inner wall of the drill hole to be measured.

[0055] Here, the screw rod 71 of the position adjusting assembly is driven to rotate by external force, and the transmission structure such as the adjusting rod 72, the connecting sleeve 122 and the inner rod 121 drives the cleaning plate 10 to move along the radial direction of the support base; at the same time, the rollers 6 of the positioning structure move synchronously in the radial direction, so as to ensure that the device is centered and stable, and the cleaning surface of the cleaning plate 10 can be in contact with the inner wall of the drill hole, which not only ensures the cleaning effect, but also avoids excessive extrusion and abrasion; so that the device is adapted to drill holes of different diameters, and ensures that the cleaning and measurement operations can be effectively carried out under various hole diameters.

[0056] S300, starting the first driving structure, the driving shaft of which drives the cleaning sleeve 8 to rotate around the axis of the support base, and the cleaning sleeve 8 synchronously 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 disc 112 of the second adjusting unit rotates synchronously with the cleaning sleeve 8, so that the push strips 113 on the mounting disc 112 are alternately in contact with the side wall of the cleaning rod 9, and the cleaning plate 10 is driven to reciprocate; and the gear roller 114 at the end of the cleaning rod 9 rotates relative to the gear rack 115 on the inner side of the cleaning sleeve 8, and drives 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 drill hole to be measured from different directions.

[0057] The driving shaft of the first driving structure is engaged with the gear ring 13 through the gear 14 to drive the cleaning sleeve 8 to rotate around the axis of the support base, and synchronously drive the cleaning rod 9 and the cleaning plate 10 to revolve around the center of the borehole, so as to cover the circumferential range of the borehole wall. The mounting disc 112 of the second adjusting unit rotates synchronously with the cleaning sleeve 8, each pushing strip 113 alternately contacts the cleaning rod 9, and is matched with the elastic reset of the second elastic telescopic rod 91, so as to drive the cleaning plate 10 to reciprocate along the axis of the support base, and cover the axial range of the borehole wall. The gear roller 114 at the end of the cleaning rod 9 is engaged with the gear rack 115 on the inner side of the cleaning sleeve 8, and when the cleaning rod 9 moves axially, the gear roller 114 rotates relative to the gear rack 115, and drives the cleaning plate 10 to rotate around its own axis.

[0058] Through this step, the debris and dust on the borehole wall are cleaned from the three dimensions of circumference, axis and angle, so as to avoid the interference of impurities on subsequent measurement.

[0059] S400, during the cleaning operation, the shooting mechanism 15 is synchronously driven to rotate with the gear ring 13, the shooting mechanism 15 is used to collect image data of the inside of the borehole to be measured in all directions, the image data of the inside of the borehole is obtained, and the image data of the inside of the borehole is sent to an external receiving device; and the gamma measurement mechanism 3 detects gamma ray data in the borehole to be measured in real time, and the gamma ray data is sent to the external receiving device.

[0060] The shooting mechanism 15 rotates synchronously with the gear ring 13, and the image data of the borehole wall is collected at 360° and sent to the external receiving device in real time. Here, the external receiving device is, for example, a ground monitoring terminal. The gamma measurement mechanism 3 continuously detects the gamma ray data in the borehole, and the gamma ray data is wirelessly transmitted to the external receiving device. The external receiving device combines the image data and the gamma ray data of the inside of the borehole to comprehensively determine the borehole trajectory, the borehole wall condition and the underground geological information.

[0061] The application ensures the dead-angle-free cleaning of the borehole inner wall through the combined motion mode of the cleaning plate 10, and the image data and the gamma ray data are collected in parallel to comprehensively reflect the borehole trajectory and the geological information, so as to finally provide accurate trajectory parameters and geological data for the coal mine borehole construction, reduce the safety hazards such as gas drainage blind area and water exploration and drainage blind area, and help the coal mine safety production.

[0062] The above description is only a preferred embodiment of the application and a description of the technical principles used. Those skilled in the art should understand that the application range involved in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the application concept. For example, the above features are replaced with the technical features disclosed in the application (but not limited to) having similar functions to form a technical solution.

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. The 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) for contacting 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).

2. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 1, characterized in that, Also includes: A position adjustment component is provided on the support housing; The position adjustment component includes: Position adjustment sleeve (4), the position adjustment sleeve (4) is sleeved on the support housing; The position adjustment sleeve (4) is provided with an adjustment rod (72), which passes through the opening on the support housing and extends into the receiving space; the position adjustment sleeve (4) is provided with a movable positioning structure, which 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 radially along the support base synchronously, so that the cleaning plate (10) can be adapted to drill holes of different diameters.

3. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 2, characterized in that, 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 support base.

4. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 1, characterized in that, 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.

5. A 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).

6. The wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 5, 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.

7. A wireless measurement device for coal mines integrating trajectory video and gamma measurement according to claim 6, 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).

8. 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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