An intelligent drilling device for invert construction quality inspection

Abstract

The present invention relates to the technical field of concrete and surrounding rock drilling, and in particular to an intelligent drilling device for invert construction quality detection, which comprises a fixed installation tube and a driving rod for connecting a geological drilling rig, the driving rod passes through the inner cavity of the fixed installation tube, the free end of the fixed installation tube is sleeved with a drill tube, a gear acceleration mechanism and a monitoring mechanism are arranged in the drill tube, the gear acceleration mechanism is connected to the driving rod, the other end of the gear acceleration mechanism is connected to a drill bit, the opposite side walls of the drill tube are also respectively provided with a monitoring port and a sampling port connected to the outside, the monitoring port is radially corresponding to the monitoring mechanism, and a sampling wheel is arranged in the drill tube to guide the concrete or surrounding rock of the sampling port to the side of the monitoring port. The present invention realizes that a small rotation speed drives a small diameter drill bit to rotate at a higher rotation speed, has high strength and stable structure, can synchronously detect and observe the concrete or surrounding rock on both sides of the drill tube, and is convenient for analyzing the quality difference of the surrounding rock in different directions at the position of the drill tube.

Description

Technical Field

[0001] The invention relates to the technical field of concrete and surrounding rock drilling, and in particular to an intelligent drilling device for invert construction quality detection. Background Art

[0002] The inverted arch is a reverse arch structure used in the underground surrounding rock to adjust the stress of the upper structure and coordinate the deformation of the overall structure. It is the main lower structure of the underground support structure. As the main load-bearing structure, the inverted arch plays an important role in improving the force balance of the bottom surrounding rock and improving the integrity of the structure. However, in recent years, in the process of engineering construction, the phenomenon of "focusing on the upper part and neglecting the lower part; focusing on the lining and neglecting the tunnel bottom" is common. Coupled with the complex geological conditions, unreasonable design and construction technology and other reasons, the inverted arch disease often occurs, which brings great hidden dangers to the safety of the later highway operation. Therefore, the thickness detection of the inverted arch is an important part of engineering construction quality control and operation safety assessment.

[0003] At present, the commonly used methods for invert quality inspection are geological radar method and borehole coring method. Among them, radar detection accuracy is limited, and the results of borehole coring method are more reliable. The borehole coring method uses a geological drill to drill core samples from the structure. It is a direct method to evaluate the quality of invert construction. The borehole coring is to drill core samples from the road surface. The drilling depth is greater than the road surface, invert filling and invert depth. Through drilling and coring, the geological conditions of the road surface, invert and tunnel bottom can be directly observed and measured.

[0004] However, geological drilling rigs need to be towed by trucks and carry a large amount of water. The equipment assembly takes a long time and requires more than two people to work together. After drilling, the core sample needs to be taken out and the core sample condition needs to be manually observed, which has low work efficiency. For this reason, some drilling rigs use endoscopes, sensors, etc. integrated on the drill pipe to achieve intelligent collection and detection. However, this method also faces the following shortcomings. First, the endoscope and sensor will rotate with the drill bit, which will cause the field of view of the endoscope to be affected by irregular movement, making the image unstable or unable to be effectively collected. Secondly, the endoscope is in direct contact with concrete or surrounding rock or too close to the surface of concrete or surrounding rock. The irregularities of the surface of concrete or surrounding rock (such as particles, wet layers, rock debris, etc.) will interfere with the lens field of view, resulting in blurred or out-of-focus images. Under the auxiliary observation of the built-in light source, the too close distance will also cause the surface of concrete or surrounding rock (especially when wet or smooth) to reflect or scatter light, affecting the image quality collected by the endoscope. In addition, the quality and humidity of concrete or surrounding rock at different depths, locations, etc. are different, and there will be differences even on both sides of the drill pipe. In order to more accurately judge the structural quality in different directions, multiple drilling holes are used for detection and judgment, which increases the duration of construction and inspection work and reduces construction efficiency. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an intelligent drilling device for invert construction quality inspection.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] An intelligent drilling device for invert construction quality inspection, comprising a fixed installation cylinder and a driving rod for connecting a geological drilling rig, the driving rod passing through the inner cavity of the fixed installation cylinder, the free end of the fixed installation cylinder is sleeved with a drill cylinder, a gear acceleration mechanism and a monitoring mechanism are arranged in the drill cylinder, the gear acceleration mechanism comprises a first positioning frame, a second positioning frame, an active rotating rod, a driven rotating rod and a planetary acceleration gear assembly, the tops of the first positioning frame and the second positioning frame are both provided with positioning holes, the active rotating rod is installed on the first positioning frame through the positioning hole, the driven rotating rod is installed on the second positioning frame through the positioning hole, the axis extension lines of the active rotating rod and the driven rotating rod overlap, the input end of the planetary acceleration gear assembly is arranged at the active rotating rod, and the driven rotating rod is installed at the active rotating rod. The active rotating rod faces one side of the driven rotating rod, the output end of the planetary acceleration gear assembly is connected to one end of the driven rotating rod, the other end of the active rotating rod is connected to the driving rod, and the other end of the driven rotating rod is connected to a drill bit. The monitoring mechanism is installed on the second positioning frame through an extension rod. The side wall of the drill barrel is also provided with a monitoring port connected to the outside. The monitoring port is arranged on one side of the first positioning frame and radially corresponds to the monitoring mechanism. A movable opening closing plate is arranged on the monitoring port. A sampling port is arranged on the side of the drill barrel away from the monitoring port. A sampling wheel is also sleeved on the driven rotating rod, and a mud discharge port is arranged adjacent to the monitoring port. Scrapers are arranged on the outer ring of the sampling wheel at equal intervals, and the scrapers rotate to cover the sampling port and the mud discharge port.

[0008] Further, the drill tube is provided with an operating chamber on a side wall of the monitoring port, and an arc-shaped slide, a rack slide and an adjusting rotating rod are provided in the operating chamber, the rack slide is slidably connected to the arc-shaped slide, the adjusting rotating rod is rotatably arranged in the operating chamber, and a semi-toothed gear is provided at the end of the adjusting rotating rod, and the clamping part of the semi-toothed gear is gear-engaged with the rack slide. The drill tube is fixedly installed on the fixed installation tube, and the driving rod is plugged and fixed with the active rotating rod, so that the rotation of the driving rod drives the rotation of the active rotating rod. The planetary acceleration gear assembly includes a planet carrier, a sun gear and three planetary gears, the sun gear is arranged in the planet carrier, and the planet carrier and the sun gear are coaxially arranged, and the three planetary gears are all arranged around the inner ring of the planet carrier and the outer ring of the sun gear, and the three planetary gears are respectively meshed and connected with the planet carrier and the sun gear. The active rotating rod is connected to the input end of the planetary acceleration gear assembly, that is, the active rotating rod is connected to the planet carrier, and the output end of the planetary acceleration gear assembly is connected to the driven rotating rod, that is, the sun gear is connected to the driven rotating rod. When the active rotating rod rotates, the rotation of the driven rotating rod is greater than the number of rotations of the active rotating rod, thus realizing the gear acceleration mechanism.

[0009] Furthermore, the rod body of the adjusting rotating rod is also provided with a third gear, the third gear is provided with a transmission belt, the operating cavity is provided with a through hole for the transmission belt to pass through, and the third gear and the driven rotating rod are connected by the transmission belt. The rod body of the driven rotating rod is provided with a circumferentially arranged toothed portion, the driven rotating rod is connected to the upper end of the transmission belt by the toothed portion, and the lower end of the transmission belt is sleeved on the third gear and is connected to the third gear by transmission.

[0010] Furthermore, the closing plate is fixedly connected to the side edge of the rack slide, and an elastic component is also provided in the arc-shaped slide groove, one end of the elastic component is in contact with the rack slide, and a notch is provided on the side of the closing plate facing the elastic component, and the notch has the same size as the monitoring port. The rotation of the active rotating rod drives the movement of the planetary acceleration gear assembly, which in turn drives the rotation of the driven rotating rod, and the rotation of the driven rotating rod drives the rotation of the third gear, and the rotation of the third gear drives the rotation of the coaxial semi-toothed gear, which is toothed with the rack slide, driving the rack slide to slide along the arc-shaped slide groove, and the rack slide is an arc-shaped structure adapted to the arc-shaped slide groove.

[0011] Furthermore, when the rack slide abuts against the end away from the elastic component, the notch is connected to the monitoring port. During the rotation of the adjustment lever, that is, during the rotation of the drive lever, the drill bit drives the drill barrel to perform drilling operations. At this time, the plate body of the closing plate covers and closes the monitoring port, so that when the drill barrel moves into the concrete or surrounding rock, external objects will not enter the cavity of the drill barrel. When the adjustment lever stops and the teeth of the half-toothed gear face upward, the arc-shaped slide groove is elastically moved away from the end of the elastic component by the elastic action of the elastic component, so that the notch is connected to the monitoring port. At this time, the concrete or surrounding rock can be observed and analyzed through the monitoring mechanism.

[0012] Furthermore, the monitoring mechanism includes a depth sensor, an angle sensor, an X-ray fluorescence analyzer, an endoscope and a searchlight source, wherein the depth sensor, angle sensor, X-ray fluorescence analyzer, endoscope and searchlight source are all integrated in a housing, and the X-ray fluorescence analyzer, endoscope and searchlight source are all arranged toward one side of the monitoring port. The depth sensor is used to monitor the depth of the borehole in real time, and the angle sensor is a small gyroscope or inclination sensor, which obtains inclination information by measuring the inclination angle of the drill barrel in real time. The X-ray fluorescence analyzer performs real-time analysis of the metal or mineral components in concrete or surrounding rock to assist the human eye in identifying them. The endoscope is used to monitor or take photos to identify the invert and the filling layers of the invert in real time, and the specific components are identified by the searchlight source, thereby eliminating the operation steps of taking out the core sample.

[0013] Furthermore, a circumferential mud guide groove for the scraper to move is provided on the inner cavity wall of the drill barrel, and the circumferential mud guide groove is connected with the mud discharge port, and a guide plate for guiding the mud discharge port is also provided on the circumferential mud guide groove. When the driven rotating rod rotates, the sampling wheel is driven to rotate synchronously, and during the movement of the drill barrel, concrete or surrounding rock will enter the sampling port, and the concrete or surrounding rock entering the sampling port will be brought into the circumferential mud guide groove by the scraper, and guided to the vicinity of the monitoring port along the circumferential mud guide groove, and then the guide plate will guide the concrete or surrounding rock to the mud discharge port. At this time, the X-ray fluorescence analyzer, endoscope and searchlight source of the monitoring mechanism can cover the monitoring port and the mud discharge port, and can simultaneously detect the concrete or surrounding rock on both sides of the drill barrel, which is convenient for guiding the movement direction of the drill barrel and the data analysis of the concrete or surrounding rock.

[0014] Furthermore, the outer wall of the drill barrel is also provided with a mud retaining groove, the mud discharge port is connected to the mud retaining groove and communicated with the outside, and the mud retaining groove is provided with an arc guide at one end toward the drill bit. The opening direction of the mud retaining groove is opposite to the travel direction of the drill bit, that is, during the travel of the drill barrel, the concrete or surrounding rock entering from the sampling port will be discharged from the opening of the mud retaining groove. At the same time, during the drilling process, concrete or surrounding rock will not enter the inner cavity of the drill barrel from the mud retaining groove. The arc guide setting of the travel direction of the mud retaining groove can greatly reduce the travel resistance and ensure the normal drilling operation of the drill bit and the drill barrel.

[0015] Furthermore, a plug-in groove is provided at one end of the active rotating rod away from the driven rotating rod, and the driving rod is detachably connected to the plug-in groove. A pin hole is provided in the plug-in groove of the active rotating rod, and a pin matching the pin hole is provided at one end of the driving rod. After the driving rod is screwed into the plug-in groove and the driving rod is inserted into the plug-in groove, the two are connected and fixed by the pin, so that the active rotating rod and the driving rod are prevented from being separated and falling off during the rotation process.

[0016] Furthermore, a connecting piece is provided on the outer wall of the connection end of the fixed installation tube, and a connecting groove is provided on the inner wall of the drill tube, and the connecting piece is adapted to be plugged into the connecting groove. After the drill tube and the fixed installation tube are connected and fixed, they are fixed by a fastening mechanism such as a buckle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is equipped with a planetary acceleration gear assembly in the drill barrel to achieve a higher speed of a small diameter drill bit with a low speed. It has high strength and stable structure. Compared with conventional geological drilling rigs, it has a faster drilling speed, reduces the assembly and preparation time of the equipment, and reduces labor costs and water consumption costs;

[0019] 2. The present invention can synchronously detect and observe the concrete or surrounding rock on both sides of the drill tube by setting the sampling port, sampling wheel and mud discharge port, so as to analyze the quality difference of the concrete or surrounding rock in different directions of the drill tube, facilitate analysis and targeted detection operation, and shorten the blind detection steps and duration;

[0020] 3. The present invention sets a monitoring port on the drill tube so that a certain distance of observation space is reserved between the endoscope and the concrete or surrounding rock, thereby ensuring the focus of the image and clear image display. It can also prevent soft soil or moist surrounding rock from blocking the X-ray fluorescence analyzer and the endoscope lens, affecting normal collection operations. At the same time, the searchlight source provides sufficient brightness for the detection space of the endoscope to avoid reflection, blocking or scattering caused by being too close to the concrete or surrounding rock, thereby affecting the lighting of the entire detection area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the assembly structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the gear acceleration mechanism of the drill barrel;

[0023] Figure 3 is a partial cross-sectional view of the operating chamber;

[0024] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0025] Figure 5 It is a plan view of the gear acceleration mechanism;

[0026] Figure 6 is a plan view of the drill barrel;

[0027] Figure identification: 1-fixed mounting cylinder, 101-connecting part, 2-driving rod, 3-drill barrel, 4-monitoring mechanism, 5-first positioning frame, 6-second positioning frame, 7-active rotating rod, 8-driven rotating rod, 9-planetary acceleration gear assembly, 10-drill bit, 11-extension rod, 12-monitoring port, 13-closing plate, 14-sampling wheel, 15-mud discharge port, 16-scraper, 17-operating chamber, 18-arc slide groove, 19-rack slide plate, 20-adjusting rotating rod, 21-semi-tooth gear, 22-third gear, 23-transmission belt, 24-through hole, 25-elastic component, 26-notch, 27-circumferential mud guide groove, 28-guide plate, 29-mud retaining groove, 30-sampling port. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0029] Embodiment 1, as Figure 1-6 As shown, the present invention discloses an intelligent drilling device for quality inspection of invert construction, comprising a fixed installation tube 1 and a driving rod 2 for connecting a geological drilling rig, wherein the driving rod 2 passes through the inner cavity of the fixed installation tube 1, and a drill tube 3 is sleeved on the free end of the fixed installation tube 1, wherein a gear acceleration mechanism and a monitoring mechanism 4 are arranged in the drill tube 3, wherein the gear acceleration mechanism comprises a first positioning frame 5, a second positioning frame 6, an active rotating rod 7, a driven rotating rod 8 and a planetary acceleration gear assembly 9, wherein the tops of the first positioning frame 5 and the second positioning frame 6 are both provided with positioning holes, wherein the active rotating rod 7 is mounted on the first positioning frame 5 through the positioning holes, wherein the driven rotating rod 8 is mounted on the second positioning frame 6 through the positioning holes, wherein the extended lines of the axes of the active rotating rod 7 and the driven rotating rod 8 overlap, and wherein the input end of the planetary acceleration gear assembly 9 is arranged at the active rotating rod 7 facing the driven rotating rod 8. On one side of the rotating rod 8, the output end of the planetary acceleration gear assembly 9 is connected to one end of the driven rotating rod 8, the other end of the active rotating rod 7 is connected to the driving rod 2, and the other end of the driven rotating rod 8 is connected to the drill bit 10. The monitoring mechanism 4 is installed on the second positioning frame 6 through an extension rod 11. The side wall of the drill tube 3 is also provided with a monitoring port 12 connected to the outside. The monitoring port 12 is arranged on one side of the first positioning frame 5 and radially corresponds to the monitoring mechanism 4. A movable opening closing plate 13 is arranged on the monitoring port 12. The drill tube 3 is provided with a sampling port 30 on the side away from the monitoring port 12. A sampling wheel 14 is also sleeved on the driven rotating rod 8. A mud discharge port 15 is arranged adjacent to the monitoring port 12. Scrapers 16 are arranged on the outer ring of the sampling wheel 14 at equal intervals. The scraper 16 rotates to cover the sampling port 30 and the mud discharge port 15.

[0030] The drill tube 3 is provided with an operating chamber 17 on a side wall of the monitoring port 12. The operating chamber 17 is provided with an arc-shaped slide groove 18, a rack slide plate 19 and an adjusting rotating rod 20. The rack slide plate 19 is slidably connected to the arc-shaped slide groove 18. The adjusting rotating rod 20 is rotatably arranged in the operating chamber 17. The end of the adjusting rotating rod 20 is provided with a semi-toothed gear 21. The locking part of the semi-toothed gear 21 is gear-engaged with the rack slide plate 19. Specifically, the drill tube 3 is fixedly installed on the fixed installation tube 1, and the driving rod 2 is plugged and fixed with the active rotating rod 7, so that the rotation of the driving rod 2 drives the rotation of the active rotating rod 7. The planetary acceleration gear assembly 9 includes a planet carrier, a sun gear and three planetary gears. The sun gear is arranged in the planet carrier, and the planet carrier and the sun gear are arranged coaxially. The three planetary gears are all arranged around the inner ring of the planet carrier and the outer ring of the sun gear. The three planetary gears are respectively meshed and connected with the planet carrier and the sun gear. The active rotating rod 7 is connected to the input end of the planetary acceleration gear assembly 9, that is, the active rotating rod 7 is connected to the planet carrier, and the output end of the planetary acceleration gear assembly 9 is connected to the driven rotating rod 8, that is, the sun gear is connected to the driven rotating rod 8. When the active rotating rod 7 rotates, the rotation of the driven rotating rod 8 is greater than the number of rotations of the active rotating rod 7, realizing the gear acceleration mechanism.

[0031] The rod body of the adjusting rotating rod 20 is also provided with a third gear 22, a transmission belt 23 is provided on the third gear 22, a through hole 24 for the transmission belt 23 to pass through is provided on the operating chamber 17, and the third gear 22 and the driven rotating rod 8 are transmission-connected via the transmission belt 23. Specifically, the rod body of the driven rotating rod 8 is provided with a circumferentially arranged toothed portion, the driven rotating rod 8 is transmission-connected to the upper end of the transmission belt 23 via the toothed portion, and the lower end of the transmission belt 23 is sleeved on the third gear 22 and transmission-connected to the third gear 22.

[0032] The closing plate 13 is fixedly connected to the side edge of the rack slide 19, and an elastic component 25 is also provided in the arc-shaped slide groove 18. One end of the elastic component 25 is in contact with the rack slide 19. A notch 26 is provided on the side of the closing plate 13 facing the elastic component 25. The notch 26 has the same size as the monitoring port 12. Specifically, the rotation of the active rotating rod 7 drives the movement of the planetary acceleration gear assembly 9, which in turn drives the rotation of the driven rotating rod 8. The rotation of the driven rotating rod 8 drives the rotation of the third gear 22. The rotation of the third gear 22 drives the rotation of the coaxial semi-toothed gear 21. The semi-toothed gear 21 is toothed with the rack slide 19, driving the rack slide 19 to slide along the arc-shaped slide groove 18. The rack slide 19 is an arc-shaped structure adapted to the arc-shaped slide groove 18. In the present application, Figure 4As shown, the rotation direction of the half-toothed gear 21 from the right side is counterclockwise, that is, when the half-toothed gear 21 rotates, the arc-shaped slide groove 18 is pushed to one side of the elastic component 25. Although half of the arc surface of the half-toothed gear 21 does not have a locking tooth, its rotation speed is greater than the sliding speed of the rack slide 19 during the continuous rotation of the adjustment rod 20. Therefore, while ensuring that the adjustment rod 20 rotates, the rack slide 19 can always be located at one end of the elastic component 25. And due to the change in the elastic potential energy of the elastic component 25, the rack slide 19 will not get stuck to the half-toothed gear 21.

[0033] When the rack slide plate 19 abuts against the end away from the elastic component 25, the notch 26 is connected to the monitoring port 12. Specifically, during the rotation of the adjusting lever 20, that is, during the rotation of the driving rod 2, the drill bit 10 drives the drill barrel 3 to perform drilling operations. At this time, the plate body of the closing plate 13 covers and closes the monitoring port 12, so that when the drill barrel 3 moves into the concrete or surrounding rock, external objects will not enter the cavity of the drill barrel 3. When the adjusting lever 20 stops, and the teeth of the half-toothed gear 21 face upward, the arc-shaped slide groove 18 is elastically moved away from the end of the elastic component 25 by the elastic action of the elastic component 25, so that the notch 26 is connected to the monitoring port 12. At this time, the concrete or surrounding rock can be observed and analyzed through the monitoring mechanism 4.

[0034] The monitoring mechanism 4 includes a depth sensor, an angle sensor, an X-ray fluorescence analyzer, an endoscope and a searchlight source, wherein the depth sensor, the angle sensor, the X-ray fluorescence analyzer, the endoscope and the searchlight source are all integrated in a housing, and the X-ray fluorescence analyzer, the endoscope and the searchlight source are all arranged toward one side of the monitoring port 12. Specifically, the depth sensor is used to monitor the depth of the borehole in real time, and the angle sensor is a small gyroscope or an inclination sensor, which obtains the inclination information by measuring the inclination angle of the drill tube 3 in real time. The X-ray fluorescence analyzer performs real-time analysis of the metal or mineral components in the concrete or surrounding rock to assist the human eye in identifying them. The endoscope is used to monitor or take photos to identify the invert and the filling layers of the invert in real time, and the specific components are identified by the searchlight source, thereby eliminating the operation steps of taking out the core sample.

[0035] The inner wall of the drill tube 3 is provided with a circumferential mud guide groove 27 for the scraper 16 to move, the circumferential mud guide groove 27 is connected with the mud discharge port 15, and the circumferential mud guide groove 27 is also provided with a guide plate 28 for guiding the mud discharge port 15. Specifically, when the driven rotating rod 8 rotates, the sampling wheel 14 is driven to rotate synchronously, and during the movement of the drill tube 3, the concrete or surrounding rock will enter the sampling port 30, and the concrete or surrounding rock entering the sampling port 30 will be brought into the circumferential mud guide groove 27 by the scraper 16, and guided to the vicinity of the monitoring port 12 by the circumferential mud guide groove 27, and then the guide plate 28 will guide the concrete or surrounding rock to the mud discharge port 15. At this time, the search range of the X-ray fluorescence analyzer, endoscope and searchlight source of the monitoring mechanism 4 can cover the monitoring port 12 and the mud discharge port 15, and the concrete or surrounding rock on both sides of the drill tube 3 can be synchronously detected at the same time, which is convenient for guiding the movement direction of the drill tube 3 and the data analysis of the concrete or surrounding rock.

[0036] The outer wall of the drill tube 3 is also provided with a mud retaining groove 29, the mud discharge port 15 is connected to the mud retaining groove 29 and communicated with the outside, and the mud retaining groove 29 is set to guide the arc toward one end of the drill bit 10. Specifically, the opening direction of the mud retaining groove 29 is opposite to the travel direction of the drill bit 10, that is, during the travel of the drill tube 3, the concrete or surrounding rock entering from the sampling port 30 will be discharged from the opening of the mud retaining groove 29. At the same time, during the drilling process, concrete or surrounding rock will not enter the inner cavity of the drill tube 3 from the mud retaining groove 29. The guide arc setting of the travel direction of the mud retaining groove 29 can greatly reduce the travel resistance and ensure the normal drilling operation of the drill bit 10 and the drill tube 3.

[0037] The active rotating rod 7 is provided with a plug-in groove at one end away from the driven rotating rod 8, and the driving rod is detachably connected to the plug-in groove. Specifically, a pin hole is provided in the plug-in groove of the active rotating rod 7, and a pin matching the pin hole is provided at one end of the driving rod 2. After the driving rod 2 is screwed into the plug-in groove, the two are connected and fixed by the pin, which can prevent the active rotating rod 7 from separating from the driving rod 2 during the rotation process.

[0038] The outer wall of the connection end of the fixed installation tube 1 is provided with a connector 101, and the inner wall of the drill tube 3 is provided with a connection groove, and the connector 101 is adapted to be plugged into the connection groove. Specifically, after the drill tube 3 and the fixed installation tube 1 are connected and fixed, they are fixed by a fastening mechanism such as a buckle.

[0039] After the closing plate 13 is opened, the monitoring port 12 facilitates the monitoring mechanism 4 to directly survey the concrete or surrounding rock, which can avoid the material of the protective layer (such as the transparent cover) and the refraction of the light source affecting the judgment of the picture. In addition, the present application scheme links the closing plate 13 with the gear acceleration mechanism to achieve the functions of dynamic closing and static opening, eliminating additional electronic control components and power consumption.

[0040] The geological drilling rig is provided with a motor for connecting to the driving rod 2, and the motor is provided with a control unit for controlling the number of rotations of the driving rod 2. Specifically, the control unit selects a PLC controller, and a program is pre-set on the PLC controller, which can count the number of rotations of the driving rod 2 and stop the rotation after the predetermined number of rotations is completed. The number of rotations of the semi-toothed gear 21 is calculated according to the matching relationship between the number of rotations of the driving rod 2 and the semi-toothed gear 21. When the drill tube 3 drills into a predetermined depth, the PLC controller controls the driving rod 2 to stop rotating, so that after the semi-toothed gear 21 stops, the side of the stuck tooth faces upward, so that the semi-toothed gear 21 loses the tooth connection with the rack slide 19, and the notch 26 is correspondingly connected with the monitoring port 12 to facilitate the monitoring operation after stopping.

[0041] Embodiment 2: Based on embodiment 1, this embodiment proposes a specific working principle of an intelligent drilling device for invert construction quality inspection.

[0042] The specific implementation principle process is as follows:

[0043] Insert the driving rod 2 into the plug-in groove of the active rotating rod 7, connect the driving rod 2 with the active rotating rod 7 through the pin hole and the pin, and install and fix the fixed installation tube 1 with the drill tube 3 to complete the preparation work. Start the motor of the geological drilling rig, the motor drives the driving rod 2 to rotate, and the rotation of the driving rod 2 drives the active rotating rod 7 to rotate. The planetary acceleration gear assembly 9 includes a planet carrier, a sun gear and three planetary gears. The sun gear is arranged in the planet carrier, and the planet carrier and the sun gear are arranged coaxially. The three planetary gears are all arranged around the inner ring of the planet carrier and the outer ring of the sun gear. The three planetary gears are respectively meshed and connected with the planet carrier and the sun gear. The active rotating rod 7 is connected to the input end of the planetary acceleration gear assembly 9, that is, the active rotating rod 7 is connected to the planet carrier, and the output end of the planetary acceleration gear assembly 9 is connected to the driven rotating rod 8, that is, the sun gear is connected to the driven rotating rod 8. When the active rotating rod 7 rotates, the rotation of the driven rotating rod 8 is greater than the number of rotations of the active rotating rod 7, realizing the gear acceleration mechanism. The rotation of the driven rotating rod 8 drives the drill bit 10 to perform the concrete or surrounding rock drilling operation, and the drill bit 10 enters the concrete or surrounding rock to start drilling. During the drilling process, the closing plate 13 always covers the monitoring port 12 to prevent the external concrete or surrounding rock from entering the drill tube 3. At the same time, the driven rotating rod 8 drives the adjusting rotating rod 20 to rotate through the transmission belt 23, and the adjusting rotating rod 20 drives the semi-toothed gear 21 to rotate to adjust the position of the rack slide 19. When the adjusting rotating rod 20 continues to rotate, the elastic component 25 is squeezed by force, and the closing plate 13 always covers the monitoring port 12.

[0044] After the drill tube 3 reaches the predetermined drilling depth, the driving rod 2 stops rotating, and then the adjusting rod 20 stops rotating. The elastic component 25 pushes the rack slide 19 to the end away from the elastic component 25. At this time, the toothed portion of the semi-toothed gear 21 faces upward, the arc-shaped slide groove 18 drives the closing plate 13 to move, and the monitoring port 12 and the notch 26 are connected and connected. At this time, the monitoring mechanism 4 can detect and analyze the concrete or surrounding rock in the borehole in real time, including the depth of the barrel, the inclination angle, and the composition analysis of the concrete or surrounding rock. Preferably, a chip discharge port is also provided at the rear end of the operating chamber 17, which can discharge a small amount of concrete or surrounding rock entering the operating chamber 17.

[0045] At the same time, when the driven rotating rod 8 rotates, the sampling wheel 14 is driven to rotate synchronously, and during the advancement of the drill tube 3, the concrete or surrounding rock will enter the sampling port 30, and the concrete or surrounding rock entering the sampling port 30 will be brought into the circumferential mud guide groove 27 by the scraper 16, and as the sampling wheel 14 rotates, any scraper 16 will drive the concrete or surrounding rock along the circumferential mud guide groove 27 to the vicinity of the monitoring port 12. Then the guide plate 28 will guide the concrete or surrounding rock to the mud discharge port 15. At this time, the search range of the X-ray fluorescence analyzer, endoscope and searchlight source of the monitoring mechanism 4 can cover the monitoring port 12 and the mud discharge port 15, and the concrete or surrounding rock on both sides of the drill tube 3 can be synchronously detected at the same time, which is convenient for guiding the advancement direction of the drill tube 3 and the data analysis of the concrete or surrounding rock. During the advancement of the drill tube 3, the concrete or surrounding rock that enters the mud discharge port 15 later will push the concrete or surrounding rock that is already at the mud discharge port 15, and then the part of the concrete or surrounding rock will be guided out of the opening of the mud retaining groove 29.

[0046] This application scheme conducts concrete or surrounding rock analysis and quality monitoring during drilling operations through linkage control of drilling operations and concrete or surrounding rock monitoring operations. It can not only achieve small diameter drilling (less than 50mm in diameter), but also has lower power and faster drilling speed than conventional geological drilling rigs, and does not require core sampling. It can intelligently monitor the drilling depth and inclination angle, and take photos of the concrete of the invert layer and the lower surrounding rock, as well as analyze the invert filling layer, so as to obtain actual construction data.

[0047] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An intelligent drilling device for invert construction quality inspection, comprising a fixed installation cylinder (1) for connecting to a geological drilling rig and a driving rod (2), wherein the driving rod (2) passes through the inner cavity of the fixed installation cylinder (1), and is characterized in that: The free end of the fixed installation cylinder (1) is sleeved with a drill cylinder (3), and a gear acceleration mechanism and a monitoring mechanism (4) are arranged in the drill cylinder (3). The gear acceleration mechanism comprises a first positioning frame (5), a second positioning frame (6), an active rotating rod (7), a driven rotating rod (8) and a planetary acceleration gear assembly (9). The tops of the first positioning frame (5) and the second positioning frame (6) are both provided with positioning holes. The active rotating rod (7) is mounted on the first positioning frame (5) through the positioning holes. The driven rotating rod (8) is mounted on the second positioning frame (6) through the positioning holes. The extended lines of the axes of the active rotating rod (7) and the driven rotating rod (8) overlap. The input end of the planetary acceleration gear assembly (9) is arranged on a side of the active rotating rod (7) facing the driven rotating rod (8). The output end of the planetary acceleration gear assembly (9) is connected to one end of the driven rotating rod (8). The other end of the rod (7) is connected to the driving rod (2), the other end of the driven rotating rod (8) is connected to a drill bit (10), the monitoring mechanism (4) is mounted on the second positioning frame (6) via an extension rod (11), the side wall of the drill tube (3) is also provided with a monitoring port (12) connected to the outside, the monitoring port (12) is arranged on one side of the first positioning frame (5) and radially corresponds to the monitoring mechanism (4), the monitoring port (12) is provided with a movable opening closing plate (13), the drill tube (3) is provided with a sampling port (30) on a side away from the monitoring port (12), the driven rotating rod (8) is also sleeved with a sampling wheel (14), a mud discharge port (15) is provided adjacent to the monitoring port (12), and scrapers (16) are arranged at equal intervals on the outer ring of the sampling wheel (14), the scrapers (16) rotate to cover the sampling port (30) and the mud discharge port (15).

2. The intelligent drilling device for invert construction quality inspection according to claim 1, characterized in that: The drill tube (3) is provided with an operating chamber (17) on a side wall of one side of the monitoring port (12); an arc-shaped slide groove (18), a rack slide plate (19) and an adjusting rotating rod (20) are provided in the operating chamber (17); the rack slide plate (19) is slidably connected to the arc-shaped slide groove (18); the adjusting rotating rod (20) is rotatably arranged in the operating chamber (17); a semi-toothed gear (21) is provided at the end of the adjusting rotating rod (20); and a toothed portion of the semi-toothed gear (21) is tooth-engaged with the rack slide plate (19).

3. The intelligent drilling device for invert construction quality inspection according to claim 2, characterized in that: A third gear (22) is also provided on the rod body of the adjusting rotating rod (20), a transmission belt (23) is provided on the third gear (22), a through hole (24) for the transmission belt (23) to pass through is provided on the operating chamber (17), and the third gear (22) and the driven rotating rod (8) are connected in transmission via the transmission belt (23).

4. The intelligent drilling device for invert construction quality inspection according to claim 3 is characterized in that: The closing plate (13) is fixedly connected to the side edge of the rack slide (19); an elastic component (25) is also provided in the arc-shaped slide groove (18); one end of the elastic component (25) is in contact with the rack slide (19); a notch (26) is provided on the side of the closing plate (13) facing the elastic component (25); the notch (26) has the same size as the monitoring port (12).

5. The intelligent drilling device for invert construction quality inspection according to claim 4, characterized in that: When the rack slide plate (19) abuts against an end away from the elastic component (25), the notch (26) is correspondingly connected to the monitoring port (12).

6. The intelligent drilling device for invert construction quality inspection according to claim 1, characterized in that: The monitoring mechanism (4) comprises a depth sensor, an angle sensor, an X-ray fluorescence analyzer, an endoscope and a searchlight source, wherein the depth sensor, the angle sensor, the X-ray fluorescence analyzer, the endoscope and the searchlight source are all integrated in a housing, and the X-ray fluorescence analyzer, the endoscope and the searchlight source are all arranged toward one side of the monitoring port (12).

7. The intelligent drilling device for invert construction quality inspection according to claim 1, characterized in that: A circumferential mud guide groove (27) for the scraper (16) to move is provided on the inner cavity wall of the drill tube (3); the circumferential mud guide groove (27) is communicated with the mud discharge port (15); and a guide plate (28) is also provided on the circumferential mud guide groove (27) for guiding the mud discharge port (15).

8. The intelligent drilling device for invert construction quality inspection according to claim 7, characterized in that: The outer wall of the drill tube (3) is also provided with a mud retaining groove (29), the mud discharge port (15) is connected to the mud retaining groove (29) and communicates with the outside, and the mud retaining groove (29) is arranged to guide an arc toward one end of the drill bit (10).

9. The intelligent drilling device for invert construction quality inspection according to claim 1, characterized in that: An inserting groove is provided at one end of the active rotating rod (7) away from the driven rotating rod (8), and the driving rod (2) is detachably connected to the inserting groove.

10. The intelligent drilling device for invert construction quality inspection according to claim 1, characterized in that: The outer wall of the connection end of the fixed installation cylinder (1) is provided with a connecting piece (101), the inner wall of the drill cylinder (3) is provided with a connecting groove, and the connecting piece (101) is adapted to be plugged into the connecting groove.

Images