Drilling explosive filling device for tunnel construction blasting

Abstract

The invention belongs to the technical field of tunnel construction equipment, and provides a drilling explosive filling device for tunnel construction blasting, which comprises a vehicle body provided with a lifting arm, and further comprises a working rail arranged at the end part of the lifting arm, the top of the working rail is in sliding connection with a drilling propulsion seat, one side of the drilling propulsion seat is in transmission connection with a drill rod, and the other side of the drilling propulsion seat is in transmission connection with an explosive filling device. The head of the drill rod is detachably connected with a drill bit through a locking assembly. The charging pipe is located in the drill rod and is coaxially arranged with the drill rod, an explosive falling groove is formed in the bottom of the side, close to the drill bit, of the charging pipe, a propelling assembly is arranged between the charging pipe and the working rail, and the propelling assembly is used for enabling the charging pipe to push the drill bit to be separated from the drill rod, so that the explosive falling groove extends out of the head of the drill rod; and an explosive pushing mechanism for enabling the explosive to fall off from the explosive falling groove is arranged in the explosive charging pipe. The hole forming efficiency is high, and multiple groups of explosives can be immediately distributed in the formed hole at intervals after the drilled hole is formed.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction equipment, and in particular relates to a drilling and charging device for tunnel construction blasting. Background Art

[0002] Tunnel blasting can adapt to a variety of complex geological conditions and can quickly break down rock structures to form an excavation surface, greatly improving construction efficiency. Compared to manual or mechanical excavation, explosive blasting can complete the crushing of large amounts of rock in a short period of time.

[0003] Traditional methods of placing explosives mainly rely on mechanical drilling and manual charging. Due to the lack of corresponding equipment during the manual charging process, the drilling and charging process takes a lot of time and labor, and the placement of drilled explosives at higher locations is difficult and poses greater safety hazards.

[0004] While existing drilling charging devices exist that can immediately load explosives into a borehole after drilling, most of these devices utilize a negative pressure push mechanism, creating a negative pressure within the borehole to force the explosives into the base of the hole. However, during tunnel blasting, several charges are sometimes placed at intervals within the borehole to meet construction needs, making existing equipment inadequate. Furthermore, the drill rod heads of existing drilling charging devices often feature a multi-piece, open-and-close structure. While this allows for negative pressure charging, the drill bit is connected by multiple hinged pieces, significantly reducing its strength and hindering drilling performance. Summary of the Invention

[0005] The purpose of the present invention is to provide a drilling and charging device for tunnel construction blasting to solve the above problems and achieve the purpose of placing multiple groups of explosives at intervals in the hole after the hole is drilled.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: a drilling and charging device for tunnel construction blasting, comprising a vehicle body, a lifting arm provided on the vehicle body, and further comprising:

[0007] A working rail is provided at the end of the lifting arm, a drilling propulsion seat is slidably connected to the top of the working rail, a drill rod is transmission-connected to one side of the drilling propulsion seat, and a drill bit is detachably connected to the head of the drill rod through a locking assembly;

[0008] A charging tube is located inside the drill rod and is coaxially arranged with the drill rod. A charge drop groove is provided at the bottom of the charging tube on one side close to the drill bit. A propulsion assembly is provided between the charging tube and the working rail. The propulsion assembly is used to enable the charging tube to push the drill bit to separate from the drill rod so that the charge drop groove extends out of the head of the drill rod. A charge pushing mechanism is provided in the charging tube for causing explosives to fall from the charge drop groove.

[0009] Preferably, the head of the drill rod is provided with a second socket, and the end of the drill bit close to the drill rod is fixedly connected to a connecting column, and the second socket is adapted to the connecting column;

[0010] A first plug hole is formed inwardly at one end of the connecting column close to the charge tube. The charge tube is adapted to the first plug hole. The locking assembly is arranged between the first plug hole and the second plug hole.

[0011] Preferably, the locking assembly includes a plurality of locking pins, and the plurality of locking pins are connected to the connecting column in a radial sliding manner along the connecting column. A first spring is abutted between the end of the connecting column away from the second socket and the connecting column. A first wedge block is fixedly connected to the end of the connecting column away from the first socket. A plurality of first wedge-shaped grooves are provided on the inner wall of the second socket. The first wedge block is adapted to the first wedge grooves. The first wedge block is used to enable the connecting column to be clamped in the second socket. An unlocking member is provided between the locking pin and the first socket.

[0012] Preferably, the unlocking member includes a slide plate slidably connected to the first socket, and a plurality of second wedge blocks are fixedly connected to the side of the slide plate close to the drill bit, the end of the locking pin away from the second socket passes through the inner wall of the first socket, and a second wedge groove is provided on the outer wall of the locking pin away from the second socket, the second wedge block is adapted to the second wedge groove, and the second wedge block is used to move the locking pin into the first socket, and a magnet is fixedly connected to the side of the slide plate away from the drill bit, and the magnet is arranged corresponding to the charging tube.

[0013] Preferably, a plurality of blocks are fixedly connected to the side wall of the slide, a plurality of sliding grooves are opened on the inner wall of the second socket along the axis, the plurality of blocks are respectively slidably connected in the plurality of sliding grooves, and a second spring is abutted between the side of the block close to the drill bit and the sliding groove.

[0014] Preferably, the propulsion assembly includes a medicine-filling propulsion seat, which is slidably connected to the top of the working rail, and one end of the charging tube away from the medicine-dropping groove is fixedly connected to the side wall of the medicine-filling propulsion seat close to the drilling propulsion seat.

[0015] Preferably, the charge pushing mechanism includes a charge trough provided on the top of the charge tube, the charge trough being arranged close to the charge pushing seat, a push plate being slidably connected in the charge tube, a movable driving member being arranged between the push plate and the charge pushing seat, and the push plate being used to push the explosive in the charge tube close to the charge trough to the charge drop trough.

[0016] Preferably, the mobile driving member includes a pushing shell fixedly connected to the medicine filling pushing seat, a pushing rack is slidably connected in the pushing shell, one end of the pushing rack is fixedly connected to the push plate, a third gear is rotatably connected in the pushing shell, the third gear is meshed with the pushing rack, and a first rotating driving member is arranged between the third gear and the pushing shell.

[0017] Preferably, a rack is fixedly connected to the top of the working rail along the axial direction of the drill rod, and a first gear and a second gear are rotatably connected in the drilling propulsion seat and the filling propulsion seat respectively, the first gear and the second gear are respectively engaged with the rack, a second rotating drive member is provided between the first gear and the drilling propulsion seat, and a third rotating drive member is provided between the second gear and the filling propulsion seat.

[0018] Preferably, a gear ring is fixedly provided on one end of the drill rod away from the drill bit, a motor is fixedly connected to the drilling propulsion seat, a fourth gear is fixedly provided on the output shaft of the motor, and the fourth gear is meshed with the gear ring.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects: On the whole, the drilling charge filling device of the present invention provides a detachable drill bit at the head of the drill rod, which not only ensures that the charging tube can smoothly enter the hole to complete the charge filling work, but also improves the overall strength of the drill rod head, so that the drilling work can be carried out efficiently; at the same time, by providing the charge tube, utilizing the charge pushing mechanism and coordinating the movement of the charge tube, the explosives are pushed from the charge tube into the predetermined position in the hole in sequence, making the charge filling work convenient while ensuring accurate filling, and can meet a variety of charge requirements, with wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of a drilling and charging device according to the present invention;

[0022] Figure 2 Schematic cross-sectional view of the drill pipe and charge tube of the present invention;

[0023] Figure 3 for Figure 2 A partial enlarged view in FIG;

[0024] Figure 4 This is a schematic diagram of the charging tube of the present invention extending from the drill pipe;

[0025] Among them, 1. vehicle body; 2. lifting arm; 3. working rail; 4. rack; 5. first gear; 6. second gear; 7. drilling propulsion seat; 8. charge propulsion seat; 9. motor; 10. drill rod; 11. gear ring; 12. drill bit; 13. charge tube; 14. charge trough; 15. charge drop trough; 16. push plate; 17. push shell; 18. propulsion rack; 19. third gear; 20. lock pin; 21. first spring; 22. first wedge block; 23. first wedge groove; 24. slide; 25. second wedge groove; 26. second wedge block; 27. slide plate; 28. magnet; 29. ​​second spring; 30. stop block; 31. first socket; 32. second socket; 33. fourth gear; 34. connecting column. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the prior art, there is a drilling and charging device for blasting in tunnel construction, which includes a mounting base slidably arranged on a frame and a rotating shaft rotatably arranged on the mounting base, the rotating shaft being hollow and through, one end of the rotating shaft being a drug inlet, and the other end being a drug outlet; a driving gear is fixedly installed at one end of the rotating shaft close to the drug inlet, and the driving gear is connected to a driving motor; a drill bit for drilling is provided at one end of the rotating shaft close to the drug outlet; the drill bit has two working states, a1 and a2; a1: the drill bit is closed, the drug outlet is closed, and the drill bit is used for drilling; a2: the drill bit is opened, and the drug outlet is opened.

[0029] The rotating shaft is fixedly installed in the sleeve, and the sleeve is rotatably installed on the mounting seat. An expansion component is also provided at the end of the rotating shaft close to the medicine outlet. A notch is opened at the end of the sleeve close to the medicine outlet. The expansion component is slidably installed in the sleeve. When the drill bit is in the a1 state, the expansion component extends from the notch to seal the drill hole.

[0030] The expansion assembly includes a sliding bar, and a first sliding groove is spaced apart on the circumferential surface of the rotating shaft. The first sliding groove is arranged along the axial length direction of the rotating shaft, and the sliding bar is slidably installed in the first sliding groove; an expansion ring is hinged on the sliding bar through a connecting rod, one end of the connecting rod is hinged on the sliding bar, and the other end is hinged on the expansion ring, and the expansion ring is slidably installed in the shell; the end of the sliding bar close to the medicine inlet is fixedly connected to a driving ring, and the driving ring is connected to a driving mechanism fixedly installed on the mounting seat; the driving ring includes a high-position driving ring and a low-position driving ring, the high-position driving ring is closer to the medicine inlet than the low-position driving ring, the sliding bar connected to the high-position driving ring and the driving ring connected to the low-position driving ring are arranged at intervals, and when the sliding bar slides toward the side close to the medicine outlet of the rotating shaft, the expansion piece extends from the notch to seal the drilled hole.

[0031] The expansion ring is made of rubber.

[0032] The drill bit includes a fan-shaped portion rotatably mounted on one end of the rotating shaft near the medicine outlet, the fan-shaped portions are arranged in a ring along the circumference of the rotating shaft, a second sliding groove is opened on the side surface of the fan-shaped portion close to the axis of the rotating shaft, a sliding column is fixedly mounted on the end of the sliding bar close to the medicine outlet, and the sliding column is slidably mounted in the second sliding groove; when the sliding bar slides toward the side close to the medicine outlet of the rotating shaft, the drill bit is in state a1; when the sliding bar slides toward the side away from the medicine outlet of the rotating shaft, the drill bit is in state a2.

[0033] The frame includes a bearing platform, and a vertical lifting mechanism is provided on the bearing platform. The lifting mechanism includes a vertical screw fixedly installed on the four sides of the bearing platform, a first sliding screw sleeve is threadedly connected to the vertical screw screw, a first horizontal screw is connected between two adjacent first sliding screw sleeves, the first horizontal screw is arranged along the axial length direction of the rotating shaft, a second sliding screw sleeve is threadedly connected to the first horizontal screw, and a second horizontal screw screw is connected to the two second sliding screw sleeves, the second horizontal screw is perpendicular to the first horizontal screw, and a mounting seat is threadedly connected to the second horizontal screw.

[0034] Travel wheels are provided below the bearing platform.

[0035] Fixed feet are fixedly arranged around the bottom of the bearing platform.

[0036] The beneficial effects of the above scheme are: it can automatically drill and fill with explosives, open the drill bit after drilling is completed, and use the recovery action of the drill bit leaving the borehole to form a negative pressure in the borehole, so that the explosives located in the hollow rotating shaft are sucked into the borehole, avoiding damage to the explosives due to rigid extrusion and friction on the hole wall during the charging process, avoiding manual operation, protecting the explosives, saving economic costs and the time cost of drilling and filling with explosives, and improving production efficiency.

[0037] After drilling, the explosives are fed through the smooth inner wall of the rotating shaft into the base of the hole. This prevents the explosives from rubbing against the sides of the hole during charging, protecting the explosives. Furthermore, the explosives leave the discharge port exactly at the base of the hole, ensuring accurate charging. This method not only saves time during drilling and charging, improving efficiency, but also ensures accurate charging placement, ensuring the blasting effect.

[0038] The above solution also utilizes a drive mechanism to drive the slide bar along the rotating shaft, not only pushing the expansion ring out of the notch in the housing and sealing the drill hole, but also driving the slide post to slide along the second sliding groove in the sector, lifting the sector, opening the drill bit, and unlocking the drug outlet on the rotating shaft. This method is simple in structure, and the drilling hole sealing and drug outlet opening are completed simultaneously, saving time and improving efficiency.

[0039] Reference Figure 1-Figure 4 The present invention provides a drilling and charging device for tunnel construction blasting, comprising a vehicle body 1, a lifting arm 2 provided on the vehicle body 1, and further comprising:

[0040] The working rail 3 is provided at the end of the lifting arm 2. A drilling propulsion seat 7 is slidably connected to the top of the working rail 3. A drill rod 10 is transmission-connected to one side of the drilling propulsion seat 7. The head of the drill rod 10 is detachably connected to a drill bit 12 through a locking assembly.

[0041] The charging tube 13 is located inside the drill rod 10 and is coaxially arranged with the drill rod 10. A charge drop groove 15 is provided at the bottom of the charging tube 13 near the drill bit 12. A propulsion assembly is provided between the charging tube 13 and the working rail 3. The propulsion assembly is used to enable the charging tube 13 to push the drill bit 12 to separate from the drill rod 10, so that the charge drop groove 15 extends out of the head of the drill rod 10. A charge pushing mechanism is provided in the charging tube 13 for causing explosives to fall from the charge drop groove 15.

[0042] The main function of the working rail 3 is to provide a working platform for the drill rod 10 and the charging tube 13, and to facilitate the lifting arm 2 to drive the drill rod 10 and the charging tube 13 to move their positions; the main function of the drilling propulsion seat 7 is to push the drill rod 10 to move and realize the feeding of the drill rod 10 during the drilling process; the main function of the locking assembly is to connect the drill bit 12 to the drill rod 10 during the drilling process, so that the drill bit 12 can be quickly separated from the drill rod 10 during the charging stage, so that the charging tube 13 can smoothly penetrate the head of the drill rod 10; the main function of the charging tube 13 is to allow the explosive to enter the hole smoothly; the main function of the charge chute 15 is to allow the explosive to fall from the charging tube 13 into the inside of the hole; the main function of the propulsion assembly is to enable the charging tube 13 to move in the drill rod 10 and penetrate the drill rod 10; the main function of the charge pushing mechanism is to enable multiple sections of explosives to be pushed in sequentially. On the whole, the drilling charge filling device of the present invention provides a detachable drill bit at the head of the drill rod, which not only ensures that the charging tube can smoothly enter the hole to complete the charge filling work, but also improves the overall strength of the drill rod head, so that the drilling work can be carried out efficiently. At the same time, by providing the charge tube, utilizing the charge pushing mechanism and coordinating the movement of the charge tube, the explosives are pushed from the charge tube into the predetermined position in the hole in sequence, making the charge filling work convenient while ensuring accurate filling, and can meet various charging requirements, with wide applicability.

[0043] As a further optimization solution, an opening is provided at the tail of the drill rod 10 to facilitate the charging tube 13 to enter the drill rod 10 .

[0044] Further optimizing the solution, a second insertion hole 32 is opened on the head of the drill rod 10, and a connecting column 34 is fixedly connected to the end of the drill bit 12 close to the drill rod 10, and the second insertion hole 32 is adapted to the connecting column 34;

[0045] A first insertion hole 31 is formed inwardly at one end of the connecting post 34 close to the charge tube 13 . The charge tube 13 is adapted to the first insertion hole 31 . The locking assembly is disposed between the first insertion hole 31 and the second insertion hole 32 .

[0046] To further optimize the solution, the locking assembly includes a plurality of locking pins 20, which are slidably connected to the connecting column 34 along the radial direction of the connecting column 34, and a first spring 21 is abutted between the end of the connecting column 34 away from the second socket 32 ​​and the connecting column 34, and a first wedge block 22 is fixedly connected to the end of the connecting column 34 away from the first socket 31, and a plurality of first wedge-shaped grooves 23 are provided on the inner wall of the second socket 32, and the first wedge block 22 is adapted to the first wedge groove 23, and the first wedge block 22 is used to make the connecting column 34 clamped in the second socket 32, and an unlocking member is provided between the locking pin 20 and the first socket 31.

[0047] like Figure 2 and Figure 3As shown, the inclined surface of the first wedge block 22 faces right, and the left side is a vertical surface, so that after the first wedge block 22 is inserted into the first wedge groove 23, the connecting column 34 is limited by the first wedge block 22 and cannot move to the left, thereby fixing the drill bit 12.

[0048] like Figure 4 As shown, when the drill bit 12 moves to the right and needs to be engaged with the drill rod 10 , the first wedge block 22 moves inward under the action of the wedge surface to ensure smooth insertion of the drill bit 12 .

[0049] As a further optimized solution, a plurality of sliding grooves 24 are provided in the connecting column 34 , the locking pin 20 is slidably connected in the sliding grooves 24 , and one end of the first spring 21 close to the first insertion hole 31 abuts against the sliding grooves 24 .

[0050] A further optimized solution is that the unlocking member includes a slide plate 27 slidably connected to the first socket 31, and a plurality of second wedge blocks 26 are fixedly connected to the side of the slide plate 27 close to the drill bit 12. The end of the locking pin 20 away from the second socket 32 ​​passes through the inner wall of the first socket 31, and a second wedge groove 25 is provided on the outer wall of the locking pin 20 away from the second socket 32. The second wedge block 26 is adapted to the second wedge groove 25, and the second wedge block 26 is used to move the locking pin 20 into the first socket 31. The side of the slide plate 27 away from the drill bit 12 is fixedly connected to a magnet 28, and the magnet 28 is arranged corresponding to the charging tube 13.

[0051] like Figure 2 and Figure 3 As shown, after the charge tube 13 moves to the left and engages with the magnet 28, as the charge tube 13 continues to move left, the charge tube 13 pushes the slide 27 to move left, and the second wedge block 26 is inserted into the second wedge groove 25. Under the action of the wedge surface, the lock pin 20 is squeezed inward, causing the lock pin 20 to move inward until the first wedge block 22 is separated from the first wedge groove 23. At this time, the drill bit 12 moves to the left under the push of the charge tube 13, thereby achieving the separation of the drill bit 12 from the drill rod 10.

[0052] like Figure 4 As shown, as the charge tube 13 continues to move leftward, the charge drop groove 15 extends from the second insertion hole 32, and the charge filling operation can be carried out.

[0053] To further optimize the solution, a number of blocks 30 are fixedly connected to the side walls of the slide 27, a number of sliding grooves are opened on the inner wall of the second socket 32 ​​along the axis, and the number of blocks 30 are respectively slidably connected in the number of sliding grooves, and a second spring 29 is in contact between the side of the block 30 close to the drill bit 12 and the sliding groove.

[0054] like Figure 3 As shown, the main function of the second spring 29 is to prevent the slide plate 27 from shaking arbitrarily in the second insertion hole 32 when the charge tube 13 is not in contact with the magnet 28.

[0055] To further optimize the solution, the propulsion assembly includes a filling propulsion seat 8, which is slidably connected to the top of the working rail 3, and the end of the charging tube 13 away from the medicine drop groove 15 is fixedly connected to the side wall of the filling propulsion seat 8 close to the drilling propulsion seat 7.

[0056] like Figure 2 As shown, the charge propulsion seat 8 moves on the working rail 3, thereby driving the charge tube 13 to move left and right.

[0057] To further optimize the solution, the charge pushing mechanism includes a charging groove 14 provided at the top of the charging tube 13, the charging groove 14 is arranged near the charging propulsion seat 8, a push plate 16 is slidably connected in the charging tube 13, and a movable driving member is provided between the push plate 16 and the charging propulsion seat 8. The push plate 16 is used to push the explosives in the charging tube 13 near the charging groove 14 to the charge drop groove 15.

[0058] To further optimize the solution, the mobile driving member includes a pushing shell 17 fixedly connected to the filling pushing seat 8, a pushing rack 18 is slidingly connected in the pushing shell 17, one end of the pushing rack 18 is fixedly connected to the push plate 16, and a third gear 19 is rotatably connected in the pushing shell 17, the third gear 19 is engaged with the pushing rack 18, and a first rotating driving member is arranged between the third gear 19 and the pushing shell 17.

[0059] like Figure 2-Figure 4 As shown, after the charging tube 13 extends out of the drill pipe 10, the operator puts the explosive into the charging tube 13 through the charging trough 14. After that, the first rotating drive member drives the third gear 19 to rotate. When the third gear 19 rotates, it drives the propulsion rack 18 to move left, causing the push plate 16 to move left, pushing the explosive toward the charge drop trough 15 until the push plate 16 moves to the charge drop trough 15, causing the explosive to completely fall from the charge drop trough 15 into the formed hole.

[0060] To further optimize the solution, a rack 4 is fixedly connected to the top of the working rail 3 along the axial direction of the drill rod 10, and the first gear 5 and the second gear 6 are respectively rotatably connected in the drilling propulsion seat 7 and the filling propulsion seat 8. The first gear 5 and the second gear 6 are respectively engaged with the rack 4, and a second rotating drive member is provided between the first gear 5 and the drilling propulsion seat 7, and a third rotating drive member is provided between the second gear 6 and the filling propulsion seat 8.

[0061] like Figure 1 As shown, the second rotating drive member and the third rotating drive member can respectively drive the first gear 5 and the second gear 6 to rotate. The first gear 5 and the second gear 6 respectively drive the drilling propulsion seat 7 and the charging propulsion seat 8 to move on the working rail 3 by engaging with the rack 4, thereby realizing the feeding of the drill rod 10 and the charging tube 13.

[0062] As a further optimization solution, in this embodiment, the first rotation driving member, the second rotation driving member and the third rotation driving member can be motors to drive the corresponding gears to rotate.

[0063] To further optimize the solution, a gear ring 11 is fixedly provided on the end of the drill rod 10 away from the drill bit 12, a motor 9 is fixedly connected to the drilling propulsion seat 7, and a fourth gear 33 is fixedly provided on the output shaft of the motor 9, and the fourth gear 33 is meshed with the gear ring 11.

[0064] like Figure 1 As shown, when the motor 9 rotates, it drives the fourth gear 33 to rotate, the fourth gear 33 drives the ring gear 11 to rotate, and the ring gear 11 drives the drill rod 10 to rotate, thereby achieving drilling.

[0065] The operating process of this embodiment is as follows: the motor 9 drives the drill rod 10 to rotate, while the drilling propulsion unit 7 moves toward the tunnel face, causing the drill rod 10 to complete the drilling process. The operator then places explosives into the charge tube 13, moves the charge propulsion unit 8 leftward, and moves the drilling propulsion unit 7 rightward, causing the charge tube 13 to move leftward and engage with the magnet 28. The charge tube 13 is then fed forward, pushing the drill bit 12 out until the charge chute 15 moves to the first set position in the hole. The push plate 16 is then moved leftward by the third gear 19, pushing the explosives into the hole.

[0066] Afterwards, the drill rod 10, charging tube 13 and push plate 16 are moved rightward at different progresses to load the second section of explosives into the charging tube 13, the charging tube 13 is pushed leftward, and the push plate 16 is moved again to place the second section of explosives into the set position in the hole.

[0067] The above steps are repeated until all the explosives are put into the hole, at which point the drill rod 10 and the charge tube 13 are all withdrawn from the hole.

[0068] To further optimize the solution, the operator can also put multiple sections of explosives into the charging tube 13 at the same time, and realize the stepping movement of the push plate 16 as the charging propulsion seat 8 moves to the right and the third gear 19 rotates step by step. When the charging tube 13 moves to the right and passes through each set position in the hole in turn, the explosives are pushed into the hole in turn.

[0069] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 cannot be understood as a limitation on the present invention.

[0070] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A drilling and charging device for tunnel construction blasting, comprising a vehicle body (1), wherein a lifting arm (2) is provided on the vehicle body (1), characterized in that: Also includes: A working rail (3), the working rail (3) being arranged at the end of the lifting arm (2), a drilling propulsion seat (7) being slidably connected to the top of the working rail (3), a drill rod (10) being transmission-connected to one side of the drilling propulsion seat (7), and a head of the drill rod (10) being detachably connected to a drill bit (12) via a locking assembly; A charging tube (13) is provided, the charging tube (13) being located in the drill rod (10) and being coaxially arranged with the drill rod (10); a charge drop groove (15) is provided at the bottom of the charging tube (13) on one side close to the drill bit (12); a propulsion assembly is provided between the charging tube (13) and the working rail (3); the propulsion assembly is used to enable the charging tube (13) to push the drill bit (12) to separate from the drill rod (10), so that the charge drop groove (15) extends out of the head of the drill rod (10); and a charge pushing mechanism is provided in the charging tube (13) for causing explosives to fall from the charge drop groove (15).

2. A drilling and charging device for tunnel construction blasting according to claim 1, characterized in that: The head of the drill rod (10) is provided with a second insertion hole (32), and one end of the drill bit (12) close to the drill rod (10) is fixedly connected to a connecting column (34), and the second insertion hole (32) is adapted to the connecting column (34); The connecting column (34) is provided with a first socket (31) inwardly at one end close to the charge tube (13); the charge tube (13) is adapted to the first socket (31); and the locking assembly is arranged between the first socket (31) and the second socket (32).

3. The drilling and charging device for tunnel construction blasting according to claim 2, characterized in that: The locking assembly includes a plurality of lock pins (20), and the plurality of lock pins (20) are connected to the connecting column (34) in a radially sliding manner. A first spring (21) is abutted between the end of the connecting column (34) away from the second insertion hole (32) and the connecting column (34). A first wedge block (22) is fixedly connected to the end of the connecting column (34) away from the first insertion hole (31). A plurality of first wedge grooves (23) are provided on the inner wall of the second insertion hole (32). The first wedge block (22) is adapted to the first wedge groove (23). The first wedge block (22) is used to enable the connecting column (34) to be clamped in the second insertion hole (32). An unlocking member is provided between the lock pin (20) and the first insertion hole (31).

4. The drilling and charging device for tunnel construction blasting according to claim 3, characterized in that: The unlocking member includes a slide plate (27) slidably connected to the first socket (31), a plurality of second wedge blocks (26) are fixedly connected to the side of the slide plate (27) close to the drill bit (12), the end of the locking pin (20) away from the second socket (32) passes through the inner wall of the first socket (31), and a second wedge groove (25) is provided on the outer wall of the locking pin (20) away from the second socket (32), the second wedge block (26) is adapted to the second wedge groove (25), and the second wedge block (26) is used to move the locking pin (20) into the first socket (31), and a magnet (28) is fixedly connected to the side of the slide plate (27) away from the drill bit (12), and the magnet (28) is arranged corresponding to the charging tube (13).

5. The drilling and charging device for tunnel construction blasting according to claim 4, characterized in that: A plurality of stoppers (30) are fixedly connected to the side wall of the slide plate (27), a plurality of sliding grooves are provided on the inner wall of the second insertion hole (32) along the axis, the plurality of stoppers (30) are respectively slidably connected in the plurality of sliding grooves, and a second spring (29) is abutted between the side of the stopper (30) close to the drill bit (12) and the sliding groove.

6. The drilling and charging device for tunnel construction blasting according to claim 1, characterized in that: The propulsion assembly includes a medicine-filling propulsion seat (8), which is slidably connected to the top of the working rail (3), and one end of the medicine-filling tube (13) away from the medicine-dropping groove (15) is fixedly connected to the side wall of the medicine-filling propulsion seat (8) close to the drilling propulsion seat (7).

7. The drilling and charging device for tunnel construction blasting according to claim 6, characterized in that: The charge pushing mechanism includes a charge trough (14) provided on the top of the charge tube (13), the charge trough (14) being arranged close to the charge pushing seat (8), a push plate (16) being slidably connected in the charge tube (13), a movable driving member being arranged between the push plate (16) and the charge pushing seat (8), and the push plate (16) being used to push the explosive in the charge tube (13) close to the charge trough (14) to the charge dropping trough (15).

8. The drilling and charging device for tunnel construction blasting according to claim 7, characterized in that: The mobile driving member includes a pushing shell (17) fixedly connected to the medicine-filling pushing seat (8), a pushing rack (18) is slidably connected in the pushing shell (17), one end of the pushing rack (18) is fixedly connected to the pushing plate (16), a third gear (19) is rotatably connected in the pushing shell (17), the third gear (19) is meshed with the pushing rack (18), and a first rotating driving member is provided between the third gear (19) and the pushing shell (17).

9. The drilling and charging device for tunnel construction blasting according to claim 6, characterized in that: The top of the working rail (3) is fixedly connected with a rack (4) along the axial direction of the drill rod (10); the drilling propulsion seat (7) and the filling propulsion seat (8) are respectively rotatably connected with a first gear (5) and a second gear (6); the first gear (5) and the second gear (6) are respectively engaged with the rack (4); a second rotating drive member is provided between the first gear (5) and the drilling propulsion seat (7); and a third rotating drive member is provided between the second gear (6) and the filling propulsion seat (8).

10. The drilling and charging device for tunnel construction blasting according to claim 1, characterized in that: A gear ring (11) is fixedly sleeved on one end of the drill rod (10) away from the drill bit (12); a motor (9) is fixedly connected to the drilling propulsion seat (7); a fourth gear (33) is fixedly sleeved on the output shaft of the motor (9); and the fourth gear (33) is meshed with the gear ring (11).

Images