Automatic positioning device and method for roadway tunneling blasting drilling

Abstract

The automatic positioning device comprises a drill rod, a circular truncated cone is arranged on the left side of the drill rod, the diameter of the right side face of the circular truncated cone is smaller than that of the left side face of the circular truncated cone, the right side face of the circular truncated cone is fixedly connected with the left end of the drill rod, and the left side face of the circular truncated cone is fixedly connected with a drilling machine connecting mechanism. According to the automatic positioning device and method for roadway tunneling blasting drilling, the depth of the drill bit and the drill rod inserted into the rock wall is displayed through the observation hole, the length of a blast hole can be known in real time through the observation hole, the drilling process can be completed at a time, and time and labor are saved.

Description

Technical Field

[0001] The present invention relates to the field of drilling devices, and particularly to an automatic positioning device and method for blast holes in roadway tunneling blasting. Background Art

[0002] Spodumene, the genesis of the deposit belongs to the granite - pegmatite stage gasification high - temperature hydrothermal deposit. Along with the early orogenic movement of the mountain body, during the upwelling process of the magma rich in rare metal elements, through crystallization differentiation and gas transportation, the fluid rich in volatile components and rare metal compounds accumulates at the top of the "magma chamber" to form pegmatite magma, which then fills the surrounding rock fissures and slowly crystallizes under continuous high temperature and high pressure. Spodumene has the following uses: Lithium chemical industry field: It is the main raw material for extracting lithium element. Lithium is widely used in the battery manufacturing field, such as new energy vehicle batteries, mobile phone batteries, etc. With the rapid development of the new energy industry, the demand for lithium continues to grow.

[0003] Ceramics field: Adding spodumene to the ceramic body can be used as a flux and is also an important component to ensure the formation of low - thermal - expansion crystals, enabling the ceramic to have low thermal expansion and being widely used in kiln furniture, refractory tableware, thermocouple protection sleeves, etc.; using spodumene in the glaze can prepare a glaze with a low expansion coefficient and can also improve the properties of the glaze such as whiteness, glossiness, and firing range.

[0004] Glass field: It can be used to manufacture special glasses, such as heat - resistant glass, optical glass, etc., which can improve the thermal shock resistance, chemical stability, and mechanical strength of the glass.

[0005] Metallurgy field: Spodumene can be used in the aluminum industry. When added to the reduction electrolytic cell of aluminum, it can increase the conductivity of the molten bath, reduce the operating temperature, and increase the output.

[0006] Other fields: It can also be applied to industries such as enamel, lubricants, and medicine. In addition, the brightly colored spodumene can be used to make ornaments such as bracelets and necklaces.

[0007] For the mining of spodumene, the blasting method is often used, that is, blast holes are drilled in the rock wall, and then an appropriate amount of explosive is filled to break the ore and separate it from the rock wall. When drilling in this way, the length of the blast hole needs to be calculated according to the size of the explosive, the density of the rock mass, the tensile strength, etc.

[0008] For example, the patent with publication number CN222670869U discloses a tunnel blasting positioning structure and a blasting hole drilling device for a drill rig, which includes a frame body, a transverse movement component, a longitudinal movement component, and a drill rig. The transverse movement component includes an adjustment seat, and the adjustment seat is arranged on the top of the frame body through a connecting member. The longitudinal movement component includes a rack, a movable block, and a gear. The rack is fixed above the adjustment seat, the movable block is slidably sleeved outside the rack and the adjustment seat, a gear is rotatably arranged inside the movable block, and the gear meshes with the rack. The rotating shaft of the gear extends outside the movable block and is fixed with a handle. The drill rig includes a motor and a drill bit. The motor is fixed above the movable block, and the drill bit is in transmission connection with the motor. The entire device realizes the drilling operation of the drill rig through the longitudinal movement component, and the longitudinal movement method is to rotate the gear by the handle to move on the rack, which is beneficial to judging the depth of the drill hole of the drill rig; the transverse movement component can move horizontally on the frame body, which is beneficial to the horizontal adjustment and positioning of the drill rig when replacing the blasting hole operation, thereby improving the drilling operation efficiency.

[0009] However, for the above-mentioned drill rig and similar drill rigs, it is impossible to synchronously measure the drilling depth during drilling. It is necessary to continuously stop work and measure during drilling until the length of the blast hole reaches the standard, resulting in time-consuming and laborious drilling process. Summary of the Invention

[0010] The purpose of the present invention is to provide an automatic positioning device and method for roadway tunneling blasting drilling to solve the above technical problems.

[0011] To solve the above technical problems, the present invention adopts the following technical solutions to achieve: An automatic positioning device for roadway tunneling blasting drilling includes a drill pipe. A frustum is arranged on the left side of the drill pipe. The diameter of the right side surface of the frustum is smaller than that of the left side surface. The right side surface of the frustum is fixedly connected to the left end of the drill pipe, and the left side surface of the frustum is fixedly connected to a drill rig connection mechanism. A drilling length measurement mechanism is installed on the drill pipe and the frustum.

[0012] Preferably, a conical drill bit is arranged on the right side of the drill pipe, and the drill bit is fixedly connected to the right end of the drill pipe.

[0013] Preferably, the drilling length measurement mechanism includes a first drive ring sleeved on the right end of the drill pipe, a second drive ring is sleeved on the left end of the drill pipe, a first spring is arranged between the second drive ring and the first drive ring, the first spring is sleeved on the drill pipe, the left end of the first spring is fixedly connected to the second drive ring, the right end of the first spring is fixedly connected to the first drive ring, a drive rope is arranged on the left side of the second drive ring, the drive rope is spirally wound around the left end of the drill pipe and the frustum, the left end of the drive rope is connected to a measurement component, a second spring is arranged on the left side of the drive rope, the second spring is sleeved on the frustum, and the left end of the second spring is fixedly connected to the drill rig connection mechanism.

[0014] Preferably, a protective disc is sleeved outside the first driving ring, and the protective disc is fixedly connected to the first driving ring.

[0015] Preferably, a plurality of pressing rods are arranged outside the left end of the drill pipe and outside the frustum. The pressing rods are used to press the driving rope. The left end of the pressing rod is fixedly connected to the drilling machine connection mechanism. The right end of the pressing rod penetrates through the second driving ring, and a limiting block is fixedly arranged at the right end of the pressing rod.

[0016] Preferably, dovetail-shaped chutes are formed at the top and bottom of the left end of the drill pipe. Dovetail-shaped sliders are slidably arranged in the dovetail-shaped chutes. The dovetail-shaped sliders are located between the driving rope and the second driving ring, and the right ends of the dovetail-shaped sliders are fixedly connected to the driving rope.

[0017] Preferably, the metering assembly includes a transverse conduit. The left end of the transverse conduit is fixedly connected to the drilling machine connection mechanism. A vertical conduit is fixedly arranged at the top left of the transverse conduit. The vertical conduit is communicated with the transverse conduit. A guide rod is arranged inside the transverse conduit. A scale is arranged on the front of the guide rod along the length direction of the guide rod. A third spring is arranged on the right side of the guide rod. The left end of the third spring is fixedly connected to the right end of the guide rod. The right end of the third spring is fixedly connected to the right end of the transverse conduit. An observation hole is arranged on the front of the transverse conduit. The left end of the driving rope penetrates into the transverse conduit through the vertical conduit and is fixedly connected to the left end of the guide rod.

[0018] Preferably, the drilling machine connection mechanism includes a connecting plate. The right side of the connecting plate is fixedly connected to the left end of the frustum, the left end of the second spring, the left end of the pressing rod, and the left end of the transverse conduit.

[0019] Preferably, the drilling machine connection mechanism further includes a driving outer pipe. The right end of the driving outer pipe is fixedly connected to the left side of the connecting plate. A driving inner pipe is arranged inside the driving outer pipe. The left end of the driving inner pipe is fixedly connected to the power output end of the drilling machine. A plurality of first arc-shaped plates are arranged at the left end of the driving inner pipe. The first arc-shaped plates are arranged in a circular array around the driving inner pipe and are fixedly connected to the outer wall of the driving inner pipe. A plurality of second arc-shaped plates are arranged at the right end of the driving inner pipe. The second arc-shaped plates are arranged in a circular array around the driving inner pipe and are fixedly connected to the outer wall of the driving inner pipe. A plurality of third arc-shaped plates are arranged at the right end of the driving outer pipe. The third arc-shaped plates are arranged in a circular array around the driving outer pipe and are fixedly connected to the inner wall of the driving outer pipe. An outer limiting ring is arranged between the driving outer pipe and the connecting plate. The left end of the outer limiting ring is fixedly connected to the right end of the driving outer pipe, and the right end of the outer limiting ring is fixedly connected to the connecting plate. An inner cylinder is arranged inside the outer limiting ring and is fixedly connected to the connecting plate. A plurality of ball bearings are arranged between the outer limiting ring and the inner cylinder. A left limiting ring is sleeved at the left end of the driving inner pipe, and the left limiting ring is fixedly connected to the left end of the driving outer pipe.

[0020] The beneficial effects of the present invention are: 1. The present invention designs an automatic positioning device and method for roadway tunneling blasting drilling, enabling the depth of the drill bit and drill pipe inserted into the rock wall to be shown through the observation hole. The length of the blast hole can be known in real time through the observation hole, allowing the drilling process to be completed in one go, saving time and effort.

[0021] 2. When the drill bit of the present invention drills obliquely upward, the drill bit cannot rotate, thus avoiding the formation of blast holes obliquely upward and preventing the explosive from slipping during tamping. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention; Figure 2 It is an enlarged schematic view of part A of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention Figure 1 ; Figure 3 It is a schematic structural diagram of the drilling rig connection mechanism of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention; Figure 4 It is an enlarged schematic view of part B of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention Figure 3 ; Figure 5 It is a schematic internal structure diagram of the horizontal conduit of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention; Figure 6 It is a schematic diagram of the working principle of Embodiment 3 of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention Figure 1 ; Figure 7 It is a schematic diagram of the working principle of Embodiment 3 of an automatic positioning device and method for roadway tunneling blasting drilling according to the present invention Figure 2 ; Reference numerals: 1, connecting plate; 2, second spring; 3, frustum; 4, driving rope; 5, pressing rod; 7, first spring; 8, drill pipe; 9, protective disc; 10, drill bit; 11, horizontal conduit; 12, observation hole; 13, vertical conduit; 15, dovetail chute; 16, dovetail slider; 17, second driving ring; 18, limiting block; 19, scale; 20, guide rod; 21, third spring; 22, third arc plate; 23, driving outer tube; 24, second arc plate; 25, driving inner tube; 26, first arc plate; 27, power output end; 28, inner cylinder; 29, outer limiting ring; 30, ball; 31, first driving ring; 32, left limiting ring. Detailed Embodiments

[0023] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Embodiment

[0026] As Figures 1-6 shown, an automatic positioning device for blasting holes in roadway tunneling includes a drill rod 8. A frustum 3 is arranged on the left side of the drill rod 8. The diameter of the right side surface of the frustum 3 is smaller than that of the left side surface. The right side surface of the frustum 3 is fixedly connected to the left end of the drill rod 8, and the left side surface of the frustum 3 is fixedly connected to the drill rig connection mechanism. A drilling length measuring mechanism is installed on the drill rod 8 and the frustum 3. A conical drill bit 10 is arranged on the right side of the drill rod 8, and the drill bit 10 is fixedly connected to the right end of the drill rod 8.

[0027] Connect this device to the drill rig through the drill rig connection mechanism, drive the drill rod 8 and the drill bit 10 to rotate through the drill rig, and use the drill rod 8 and the drill bit 10 to drill blast holes in the rock wall. Embodiment

[0028] As Figures 1-6As shown, in the case where other parts are the same as those in Embodiment 1, the difference between this embodiment and Embodiment 1 lies in that the drilling length measuring mechanism includes a first driving ring 31. The first driving ring 31 is sleeved on the right end of the drill pipe 8. A second driving ring 17 is sleeved on the left end of the drill pipe 8. A first spring 7 is arranged between the second driving ring 17 and the first driving ring 31. The first spring 7 is sleeved on the drill pipe 8. The left end of the first spring 7 is fixedly connected to the second driving ring 17, and the right end of the first spring 7 is fixedly connected to the first driving ring 31. A driving rope 4 is arranged on the left side of the second driving ring 17. The driving rope 4 is spirally wound around the left end of the drill pipe 8 and the frustum 3. The left end of the driving rope 4 is connected to the measuring assembly. A second spring 2 is arranged on the left side of the driving rope 4. The second spring 2 is sleeved on the frustum 3. The left end of the second spring 2 is fixedly connected to the drilling machine connection mechanism.

[0029] A protective disc 9 is sleeved on the outside of the first driving ring 31. The protective disc 9 is fixedly connected to the first driving ring 31. A plurality of pressure rods 5 are arranged on the outside of the left end of the drill pipe 8 and the outside of the frustum 3. The pressure rods 5 are used to press the driving rope 4. The left end of the pressure rod 5 is fixedly connected to the drilling machine connection mechanism. The right end of the pressure rod 5 penetrates through the second driving ring 17, and a limiting block 18 is fixedly arranged at the right end of the pressure rod 5. Dovetail-shaped chutes 15 are formed at the top and bottom of the left end of the drill pipe 8. Dovetail-shaped sliders 16 are slidably arranged in the dovetail-shaped chutes 15. The dovetail-shaped sliders 16 are located between the driving rope 4 and the second driving ring 17. The right end of the dovetail-shaped slider 16 is fixedly connected to the driving rope 4.

[0030] The measuring assembly includes a horizontal conduit 11. The left end of the horizontal conduit 11 is fixedly connected to the drilling machine connection mechanism. A vertical conduit 13 is fixedly arranged at the top left of the horizontal conduit 11. The vertical conduit 13 is communicated with the horizontal conduit 11. A guide rod 20 is arranged inside the horizontal conduit 11. A scale 19 is arranged on the front of the guide rod 20 along the length direction of the guide rod 20. A third spring 21 is arranged on the right side of the guide rod 20. The left end of the third spring 21 is fixedly connected to the right end of the guide rod 20, and the right end of the third spring 21 is fixedly connected to the right end of the horizontal conduit 11. An observation hole 12 is arranged on the front of the horizontal conduit 11. The left end of the driving rope 4 passes through the vertical conduit 13 and penetrates into the horizontal conduit 11 and is fixedly connected to the left end of the guide rod 20.

[0031] The drill bit 10 and the drill pipe 8 rotate continuously and are inserted into the rock wall to drill a blast hole. Since the protection disc 9 and the first drive ring 31 are stuck outside the blast hole, as the drill pipe 8 continuously drills into the rock wall, the first drive ring 31 continuously compresses the first spring 7, causing the first spring 7 to drive the second drive ring 17 to slide leftward along the pressure rod 5, so that the second drive ring 17 pushes the drive rope 4 as a whole to move leftward through the dovetail slider 16, compressing the second spring 2, and pushing more of the drive rope 4 onto the frustum 3. Since the diameter of the right side of the frustum 3 is smaller than that of the left side, when the drive rope 4 moves onto the frustum 3, more of the drive rope 4 needs to be pulled and wound around the frustum 3. Since the right end of the drive rope 4 is fixed by the dovetail slider 16, the left end of the drive rope 4 moves upward and winds around the frustum 3. When the left end of the drive rope 4 moves upward, it pulls the guide rod 20 to move leftward synchronously, causing different scales to move to the observation hole 12 for display; The deeper the drill bit 10 and the drill pipe 8 are inserted into the rock wall, the longer the compression stroke of the first spring 7, and the greater the elastic force exerted by the first spring 7 on the second drive ring 17 and the drive rope 4, enabling the drive rope 4 to continuously move leftward to compress the second spring 2. Thus, the left end of the drive rope 4 can continuously pull the guide rod 20 to move leftward, causing the value of the scale 19 displayed in the observation hole 12 to increase synchronously with the increase in the insertion depth of the drill bit 10 and the drill pipe 8, thereby showing the insertion depth of the drill bit 10 and the drill pipe 8 through the observation hole 12. Embodiment

[0032] As Figures 1-6 shown, in the case where other parts are the same as those in Embodiment 2, the difference between this embodiment and Embodiment 2 lies in that the drilling rig connection mechanism includes a connecting plate 1, and the right side of the connecting plate 1 is fixedly connected to the left end of the frustum 3, the left end of the second spring 2, the left end of the pressure rod 5, and the left end of the transverse conduit 11.

[0033] The drill connection mechanism further includes a driving outer tube 23. The right end of the driving outer tube 23 is fixedly connected to the left side of the connecting plate 1. A driving inner tube 25 is arranged inside the driving outer tube 23. The left end of the driving inner tube 25 is fixedly connected to the power output end 27 of the drill. A plurality of first arc-shaped plates 26 are arranged at the left end of the driving inner tube 25. The first arc-shaped plates 26 are arranged in a circular array around the driving inner tube 25 and are fixedly connected to the outer wall of the driving inner tube 25. A plurality of second arc-shaped plates 24 are arranged at the right end of the driving inner tube 25. The second arc-shaped plates 24 are arranged in a circular array around the driving inner tube 25 and are fixedly connected to the outer wall of the driving inner tube 25. A plurality of third arc-shaped plates 22 are arranged at the right end of the driving outer tube 23. The third arc-shaped plates 22 are arranged in a circular array around the driving outer tube 23 and are fixedly connected to the inner wall of the driving outer tube 23. An outer limiting ring 29 is arranged between the driving outer tube 23 and the connecting plate 1. The left end of the outer limiting ring 29 is fixedly connected to the right end of the driving outer tube 23, and the right end of the outer limiting ring 29 is fixedly connected to the connecting plate 1. An inner cylinder 28 is arranged inside the outer limiting ring 29, and the inner cylinder 28 is fixedly connected to the connecting plate 1. A plurality of balls 30 are arranged between the outer limiting ring 29 and the inner cylinder 28. A left limiting ring 32 is sleeved at the left end of the driving inner tube 25, and the left limiting ring 32 is fixedly connected to the left end of the driving outer tube 23.

[0034] As Figure 6 shown, when using a conventional drill to drill a hole, if the drill bit 10 faces downward, a blast hole as Figure 6 shown can be drilled. In this way, when filling the blast hole with explosive, the explosive will not slide out of the blast hole. When the drill bit 10 faces upward, a blast hole as Figure 7 shown will be drilled. At this time, when filling the blast hole with explosive, the explosive is likely to slide out of the blast hole. For this device, when the drill bit 10 faces downward, as Figure 3 shown, both the driving inner tube 25 and the driving outer tube 23 are higher on the left and lower on the right. At this time, the ball 30 slides between the inner cylinder 28 and the outer limiting ring 29. When drilling, the power output end 27 of the drill presses against the rock wall through this device, causing the driving inner tube 25 to insert into the driving outer tube 23. As the power output end 27 drives the driving inner tube 25 to rotate, each second arc-shaped plate 24 on the driving inner tube 25 is misaligned and inserted between each third arc-shaped plate 22, and the second arc-shaped plate 24 abuts against the ball 30. At this time, the power output end 27 drives the third arc-shaped plate 22 to rotate through the driving inner tube 25 and the second arc-shaped plate 24 in sequence. The third arc-shaped plate 22 drives the frustum 3, the drill pipe 8, and the drill bit 10 to rotate through the driving outer tube 23, the outer limiting ring 29, and the connecting plate 1 in sequence, causing the drill pipe 8 and the drill bit 10 to drill into the rock mass and drill a blast hole as Figure 6 shown.

[0035] When the drill bit 10 faces upward, it is the same as Figure 3On the contrary, the driving inner tube 25 and the driving outer tube 23 are lower on the left and higher on the right. When the ball 30 rolls to the driving inner tube 25 and each second arc-shaped plate 24 on the driving inner tube 25 is inserted between each third arc-shaped plate 22 in a staggered manner, since there is no ball 30 obstructing between the inner cylinder 28 and the outer limiting ring 29, the second arc-shaped plate 24 will continue to be inserted between the inner cylinder 28 and the outer limiting ring 29, so that the second arc-shaped plate 24 does not contact the third arc-shaped plate 22. At this time, when the second arc-shaped plate 24 rotates, it cannot drive the third arc-shaped plate 22 to rotate synchronously, thereby making the drill pipe 8 and the drill bit 10 unable to rotate.

[0036] Therefore, whenever the drill bit 10 of the device faces upward, the drill pipe 8 and the drill bit 10 cannot rotate, thus avoiding drilling Figure 7 the shown drill hole and causing the explosive to slide off.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic positioning device for blast holes in roadway tunneling, characterized in that: It includes a drill pipe (8). A frustum (3) is provided on the left side of the drill pipe (8). The diameter of the right side surface of the frustum (3) is smaller than that of the left side surface. The right side surface of the frustum (3) is fixedly connected to the left end of the drill pipe (8), and the left side surface of the frustum (3) is fixedly connected to a drilling machine connection mechanism. A drilling length measuring mechanism is installed on the drill pipe (8) and the frustum (3).

2. The automatic positioning device for roadway tunneling blasting drilling according to claim 1, characterized in that: A conical drill bit (10) is provided on the right side of the drill pipe (8), and the drill bit (10) is fixedly connected to the right end of the drill pipe (8).

3. The automatic positioning device for roadway tunneling blasting drilling according to claim 2, characterized in that: The drilling length measuring mechanism includes a first driving ring (31). The first driving ring (31) is sleeved on the right end of the drill pipe (8). A second driving ring (17) is sleeved on the left end of the drill pipe (8). A first spring (7) is arranged between the second driving ring (17) and the first driving ring (31). The first spring (7) is sleeved on the drill pipe (8). The left end of the first spring (7) is fixedly connected to the second driving ring (17), and the right end of the first spring (7) is fixedly connected to the first driving ring (31). A driving rope (4) is provided on the left side of the second driving ring (17). The driving rope (4) is spirally wound around the left end of the drill pipe (8) and the frustum (3). The left end of the driving rope (4) is connected to a measuring component. A second spring (2) is provided on the left side of the driving rope (4). The second spring (2) is sleeved on the frustum (3), and the left end of the second spring (2) is fixedly connected to the drilling machine connection mechanism.

4. The automatic positioning device for roadway tunneling blasting drilling according to claim 3, characterized in that: A protective disc (9) is sleeved on the outside of the first driving ring (31), and the protective disc (9) is fixedly connected to the first driving ring (31).

5. The automatic positioning device for roadway tunneling blasting drilling according to claim 4, characterized in that: A plurality of pressure rods (5) are provided on the outside of the left end of the drill pipe (8) and the outside of the frustum (3). The pressure rods (5) are used to press the driving rope (4). The left end of the pressure rod (5) is fixedly connected to the drilling machine connection mechanism. The right end of the pressure rod (5) penetrates through the second driving ring (17), and a limiting block (18) is fixedly provided at the right end of the pressure rod (5).

6. The automatic positioning device for roadway tunneling blasting drilling according to claim 5, wherein: Dovetail-shaped chutes (15) are provided at the top and bottom of the left end of the drill pipe (8). Dovetail-shaped sliders (16) are slidably arranged in the dovetail-shaped chutes (15). The dovetail-shaped sliders (16) are located between the driving rope (4) and the second driving ring (17), and the right end of the dovetail-shaped slider (16) is fixedly connected to the driving rope (4).

7. The automatic positioning device for roadway tunneling blasting drilling according to claim 6, characterized in that: The measuring component includes a horizontal conduit (11). The left end of the horizontal conduit (11) is fixedly connected to the drilling machine connection mechanism. A vertical conduit (13) is fixedly provided at the top left of the horizontal conduit (11). The vertical conduit (13) is communicated with the horizontal conduit (11). A guide rod (20) is arranged inside the horizontal conduit (11). A scale (19) is arranged on the front surface of the guide rod (20) along the length direction of the guide rod (20). A third spring (21) is provided on the right side of the guide rod (20). The left end of the third spring (21) is fixedly connected to the right end of the guide rod (20), and the right end of the third spring (21) is fixedly connected to the right end of the horizontal conduit (11). An observation hole (12) is provided on the front surface of the horizontal conduit (11). The left end of the driving rope (4) passes through the vertical conduit (13) and penetrates into the horizontal conduit (11) to be fixedly connected to the left end of the guide rod (20).

8. The automatic positioning device for roadway tunneling blasting drilling according to claim 7, wherein: The drill connection mechanism includes a connecting plate (1), and the right side of the connecting plate (1) is fixedly connected to the left end of a frustum (3), the left end of a second spring (2), the left end of a pressure rod (5), and the left end of a transverse conduit (11).

9. The automatic positioning device for roadway tunneling blasting drilling according to claim 8, wherein: The drill connection mechanism further includes a driving outer tube (23), the right end of the driving outer tube (23) is fixedly connected to the left side of the connecting plate (1), a driving inner tube (25) is arranged inside the driving outer tube (23), and the left end of the driving inner tube (25) is fixedly connected to the power output end (27) of the drill. A plurality of first arc-shaped plates (26) are arranged at the left end of the driving inner tube (25), the first arc-shaped plates (26) are arranged in a circular array around the driving inner tube (25), and the first arc-shaped plates (26) are fixedly connected to the outer wall of the driving inner tube (25). A plurality of second arc-shaped plates (24) are arranged at the right end of the driving inner tube (25), the second arc-shaped plates (24) are arranged in a circular array around the driving inner tube (25), and the second arc-shaped plates (24) are fixedly connected to the outer wall of the driving inner tube (25). A plurality of third arc-shaped plates (22) are arranged at the right end of the driving outer tube (23), the third arc-shaped plates (22) are arranged in a circular array around the driving outer tube (23), and the third arc-shaped plates (22) are fixedly connected to the inner wall of the driving outer tube (23). An outer limiting ring (29) is arranged between the driving outer tube (23) and the connecting plate (1), the left end of the outer limiting ring (29) is fixedly connected to the right end of the driving outer tube (23), the right end of the outer limiting ring (29) is fixedly connected to the connecting plate (1), an inner cylinder (28) is arranged inside the outer limiting ring (29), the inner cylinder (28) is fixedly connected to the connecting plate (1), and a plurality of balls (30) are arranged between the outer limiting ring (29) and the inner cylinder (28). A left limiting ring (32) is sleeved at the left end of the driving inner tube (25), and the left limiting ring (32) is fixedly connected to the left end of the driving outer tube (23).

10. The method of using an automatic positioning device for roadway tunneling blasting drilling according to claim 9, characterized in that: It includes connecting this device to the drill through the drill connection mechanism, driving the drill rod (8) and the drill bit (10) to rotate through the drill, drilling a blast hole on the rock wall by using the drill rod (8) and the drill bit (10), and the depth of insertion of the drill bit (10) and the drill rod (8) into the rock wall is displayed through an observation hole (12).

Images