Grooving and drilling device for controlling blasting overexcavation of peripheral holes of tunnel

Abstract

The invention belongs to the technical field of tunnel and underground engineering drilling, blasting and excavation, and particularly relates to a grooving and drilling device for controlling blasting and overexcavation of peripheral holes of a tunnel. One end of the connecting part is connected with the driving part; the drilling part is connected to the other end of the connecting part; the grooving part is slidably connected to the outer side of the connecting part; the transmission part is arranged in the connecting part, the transmission part is in transmission connection with the grooving part, and the grooving part is detachably connected with the driving part. When the special-shaped hole is constructed, equipment does not need to be switched, use is convenient and fast, the construction speed is increased, the construction cost is reduced, meanwhile, the connecting part does not act during grooving, the accuracy of the grooving position is guaranteed, and deviation is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel and underground engineering drilling and blasting excavation, and in particular relates to a slotting and drilling device for controlling blasting and over-excavation of tunnel periphery holes. Background Art

[0002] With the continuous development of social economy and the steady progress of urbanization, the scale of highway projects in my country has gradually expanded. Highway construction directly affects the future development of cities and people’s transportation. Tunnels are the main content of highway construction.

[0003] During tunnel construction, the drilling and blasting method is mostly used to excavate the tunnel. When the drilling and blasting method is used to excavate the tunnel, the blasting holes are mostly irregular holes. The setting of irregular holes can effectively avoid the problem of over-excavation of the tunnel. However, the existing irregular blast holes require switching equipment when drilling, which increases the construction cost and reduces the construction efficiency.

[0004] Therefore, a slotting and drilling device for controlling over-excavation of tunnel peripheral eye blasting is proposed. Summary of the invention

[0005] The object of the present invention is to provide a slotting and drilling device for controlling over-excavation of tunnel peripheral eye blasting, so as to solve the above-mentioned problems.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A slotting and drilling device for controlling over-excavation of tunnel peripheral eye blasting, comprising:

[0008] Drive unit;

[0009] A connecting part, one end of which is connected to the driving part;

[0010] A drilling part connected to the other end of the connecting part;

[0011] A groove portion, slidably connected to the outer side of the connecting portion;

[0012] The transmission part is arranged in the connecting part, the transmission part is in transmission connection with the cutting groove part, and the cutting groove part is detachably connected with the driving part.

[0013] In a slotting and drilling device for controlling over-excavation by blasting around a tunnel according to the present invention, the driving unit comprises:

[0014] Fixed plate;

[0015] The drilling rig is fixedly installed on one side of the fixing plate.

[0016] In a slotting and drilling device for controlling over-excavation by blasting of a tunnel periphery according to the present invention, the connecting portion comprises:

[0017] A connecting pipe is coaxially arranged with the output shaft of the drilling rig;

[0018] At least one slide groove is provided on the outer side wall of the connecting pipe, and the slide groove is arranged along the length direction of the connecting pipe.

[0019] In a slotting and drilling device for controlling over-excavation by blasting around a tunnel according to the present invention, the drilling unit comprises:

[0020] A drill bit connecting rod, coaxially fixed to one end of the connecting pipe;

[0021] The drill bit is coaxially fixed on the outer side of the drill bit connecting rod, and the drill bit is located at an end of the drill bit connecting rod away from the drilling rig.

[0022] In a slotting and drilling device for controlling over-excavation of tunnel peripheral eye blasting according to the present invention, the transmission part comprises:

[0023] A threaded rod is coaxially arranged in the connecting tube, one end of the threaded rod is coaxially rotatably connected to a shaft seat, and the shaft seat is fixed in the connecting tube;

[0024] A polished rod is coaxially fixed to one end of the threaded rod away from the shaft seat, the diameter of the polished rod is smaller than the diameter of the threaded rod, the polished rod extends out of the connecting pipe and is coaxially fixed to the output shaft of the drilling rig through a connecting head;

[0025] A threaded ring is threadedly connected to the outside of the threaded rod / emptily sleeved on the outside of the polished rod. At least one connecting block is fixedly connected to the outer wall of the threaded ring, and the connecting block is slidably connected in the sliding groove.

[0026] In a grooving and drilling device for controlling over-excavation of tunnel peripheral eye blasting of the present invention, the grooving part comprises:

[0027] A sliding sleeve is slidably connected to the outer side wall of the connecting pipe, and the inner side wall of the sliding sleeve is fixedly connected to an end of the connecting block extending out of the sliding groove;

[0028] A plurality of second meshing teeth are arranged on the inner side wall of the sliding sleeve at equal intervals in the circumferential direction, and the second meshing teeth penetrate one end of the sliding sleeve;

[0029] A plurality of first meshing teeth are arranged on the outer wall of the connector at equal intervals in the circumferential direction, and the plurality of second meshing teeth mesh with the plurality of first meshing teeth;

[0030] The grooving knife is fixedly connected to the outer side wall of the sliding sleeve.

[0031] In a grooving and drilling device for controlling over-excavation of tunnel perimeter eye blasting of the present invention, a limit handle is fixedly connected to the outer wall of the connecting pipe, the limit handle is close to the fixed plate, the limit handle is detachably connected in the limit groove, the limit groove is arranged on one side of the sliding sleeve, one end of the limit groove passes through the sliding sleeve, a magnetic block is fixedly connected to one side of the limit handle, and the magnetic block is in magnetic contact with the inner wall of the limit groove.

[0032] In a grooving and drilling device for controlling over-excavation of tunnel peripheral eye blasting of the present invention, the drill bit connecting rod and the drill bit are fixedly connected via a conveying blade, and the conveying blade is spirally arranged between the drill bit connecting rod and the drill bit.

[0033] Compared with the prior art, the present invention has the following advantages and technical effects:

[0034] When the device of the present invention is working, the grooving part is first connected to the driving part. At this time, the driving part drives the drilling part through the connecting part, and the blasting hole is drilled through the drilling part to complete the drilling work; the driving part is stopped, the grooving part is separated from the driving part, the grooving part is connected to the transmission part, and the driving part is started. At this time, the drilling part does not move, and the driving part moves through the grooving part of the transmission part to open a groove on the side wall of the blasting hole that has been drilled.

[0035] In the present invention, when constructing special-shaped holes, there is no need to switch equipment, and the use is convenient and quick, thereby accelerating the construction speed and reducing the construction cost. At the same time, the connecting part does not move when cutting the groove, ensuring the accuracy of the groove cutting position and avoiding the occurrence of deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0037] Figure 1 It is a front view of the present invention;

[0038] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0039] Among them, 1. drilling rig; 2. fixing plate; 3. connecting head; 4. first meshing tooth; 5. connecting pipe; 6. sliding sleeve; 7. grooving knife; 8. limiting groove; 9. limiting handle; 10. magnetic block; 11. drill bit; 12. drill bit connecting rod; 13. conveying blade; 14. external fixing block; 15. internal fixing block; 17. shaft seat; 18. slide groove; 19. threaded rod; 20. threaded ring; 21. connecting block; 22. second meshing tooth; 23. light rod. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0041] 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.

[0042] Reference Figure 1 to Figure 2 The present invention discloses a slotting and drilling device for controlling over-excavation of tunnel peripheral eye blasting, comprising:

[0043] Drive unit;

[0044] A connecting part, one end of which is connected to the driving part;

[0045] A drilling part connected to the other end of the connecting part;

[0046] A groove portion, slidably connected to the outer side of the connecting portion;

[0047] The transmission part is arranged in the connecting part, the transmission part is in transmission connection with the cutting groove part, and the cutting groove part is detachably connected with the driving part.

[0048] When the device of the present invention is working, the grooving part is first connected to the driving part. At this time, the driving part drives the drilling part through the connecting part, and the blasting hole is drilled through the drilling part to complete the drilling work; the driving part is stopped, the grooving part is separated from the driving part, the grooving part is connected to the transmission part, and the driving part is started. At this time, the drilling part does not move, and the driving part moves through the grooving part of the transmission part to open a groove on the side wall of the blasting hole that has been drilled.

[0049] In the present invention, when constructing special-shaped holes, there is no need to switch equipment, and the use is convenient and quick, thereby accelerating the construction speed and reducing the construction cost. At the same time, the connecting part does not move when cutting the groove, ensuring the accuracy of the groove cutting position and avoiding the occurrence of deviation.

[0050] In a feasible solution, the driving unit includes:

[0051] Fixed plate 2;

[0052] The drilling rig 1 is fixedly mounted on one side of a fixing plate 2 .

[0053] In a feasible solution, the connection part includes:

[0054] The connecting pipe 5 is coaxially arranged with the output shaft of the drilling rig 1;

[0055] At least one slide groove 18 is provided on the outer side wall of the connecting pipe 5 , and the slide groove 18 is arranged along the length direction of the connecting pipe 5 .

[0056] In a feasible solution, the drilling unit includes:

[0057] The drill bit connecting rod 12 is coaxially fixed to one end of the connecting pipe 5;

[0058] The drill bit 11 is coaxially fixed to the outer side of the drill bit connecting rod 12 , and the drill bit 11 is located at one end of the drill bit connecting rod 12 away from the drilling machine 1 .

[0059] An external fixing block 14 is sleeved on the outer side wall of the drill connecting rod 12, and the external fixing block 14 is fixedly connected to the drill connecting rod 12. An internal fixing block 15 is threadedly connected to the end of the drill connecting rod 12, and the internal fixing block 15 abuts against the external fixing block 14. Both the internal fixing block 15 and the external fixing block 14 are fixedly connected to the connecting pipe 5, so that the connection between the drill connecting rod 12 and the sliding sleeve 6 is more firmly established.

[0060] In a feasible solution, the transmission unit includes:

[0061] The threaded rod 19 is coaxially arranged in the connecting tube 5, and one end of the threaded rod 19 is coaxially rotatably connected to the shaft seat 17, and the shaft seat 17 is fixed in the connecting tube 5;

[0062] The polished rod 23 is coaxially fixed to the end of the threaded rod 19 away from the shaft seat 17. The diameter of the polished rod 23 is smaller than the diameter of the threaded rod 19. The polished rod 23 extends out of the connecting pipe 5 and is coaxially fixed to the output shaft of the drilling rig 1 through the connecting head 3.

[0063] The threaded ring 20 is threadedly connected to the outer side of the threaded rod 19 / emptily sleeved on the outer side of the polished rod 23. At least one connecting block 21 is fixedly connected to the outer side wall of the threaded ring 20. The connecting block 21 is slidably connected in the slide groove 18.

[0064] In a feasible solution, the cutting portion includes:

[0065] The sliding sleeve 6 is slidably connected to the outer wall of the connecting pipe 5, and the inner wall of the sliding sleeve 6 is fixedly connected to the end of the connecting block 21 extending out of the sliding groove 18;

[0066] A plurality of second meshing teeth 22 are arranged on the inner wall of the sliding sleeve 6 at equal intervals in the circumferential direction, and the second meshing teeth 22 penetrate one end of the sliding sleeve 6;

[0067] A plurality of first meshing teeth 4 are arranged on the outer wall of the connector 3 at equal intervals in the circumferential direction, and the plurality of second meshing teeth 22 mesh with the plurality of first meshing teeth 4;

[0068] The grooving knife 7 is fixedly connected to the outer side wall of the sliding sleeve 6 .

[0069] After the drilling is completed, the drilling machine 1 stops working and slides the sliding sleeve 6 away from the drilling machine 1 until the threaded ring 20 is threadedly connected with the threaded rod 19. At this time, the connecting pipe 5 is fixed by the limit handle 9. The drilling machine 1 drives the threaded rod 19 to rotate through the polished rod 23, drives the sliding sleeve 6 to move, and cuts a groove on the side wall of the blasthole.

[0070] In a feasible solution, a limit handle 9 is fixedly connected to the outer wall of the connecting tube 5. The limit handle 9 is close to the fixed plate 2. The limit handle 9 is detachably connected to the limit groove 8. The limit groove 8 is opened on one side of the sliding sleeve 6. One end of the limit groove 8 passes through the sliding sleeve 6. A magnetic block 10 is fixedly connected to one side of the limit handle 9. The magnetic block 10 is in magnetic contact with the inner wall of the limit groove 8.

[0071] The function of the limit handle 9 is to fix the connecting pipe 5 when cutting grooves, and at the same time to limit the sliding sleeve 6 when drilling holes. The magnetic block 10 prevents the limit handle 9 from falling out of the limit groove 8 when there is no external force.

[0072] In a feasible solution, the drill bit connecting rod 12 and the drill bit 11 are fixedly connected via a conveying blade 13 , and the conveying blade 13 is spirally disposed between the drill bit connecting rod 12 and the drill bit 11 .

[0073] The conveying blades 13 convey the soil during the drilling process to the rear of the drill bit 11 .

[0074] Specific working process:

[0075] First, the sliding sleeve 6 is moved to one end of the connecting tube 5. At this time, the second meshing teeth 22 inside the sliding sleeve 6 mesh with the first meshing teeth 4 outside the connecting head 3. The connecting head 3 is provided with a slope in the circumferential direction at one end close to the sliding sleeve 6, so as to facilitate the meshing of the second meshing teeth 22 and the first meshing teeth 4. At this time, the drilling rig 1 is started, and the drilling rig 1 drives the sliding sleeve 6 to rotate through the connecting head 3. The sliding sleeve 6 drives the connecting tube 5 to rotate, and then drives the drill bit 11 to rotate, so as to drill a blasting hole;

[0076] The soil generated during the drilling process is transported to the rear of the drill bit 11 by the action of the transport blades 13, and then transported to the outside of the drill hole by the action of the spiral transport groove opened on the outside of the connecting pipe 5;

[0077] After the drilling is completed, the drilling rig 1 stops working and slides the sliding sleeve 6 away from the drilling rig 1 until the threaded ring 20 is threadedly connected with the threaded rod 19. At this time, the connecting pipe 5 is fixed by the limit handle 9, and the drilling rig 1 drives the threaded rod 19 to rotate through the light rod 23, driving the sliding sleeve 6 to move, cutting a groove on the side wall of the blasthole, and then the equipment is taken out and the drilling is completed.

[0078] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0079] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A slotting and drilling device for controlling over-excavation of tunnel peripheral eye blasting, characterized in that: include: Drive unit; A connecting part, one end of which is connected to the driving part; A drilling part connected to the other end of the connecting part; A groove portion, slidably connected to the outer side of the connecting portion; The transmission part is arranged in the connecting part, the transmission part is in transmission connection with the cutting groove part, and the cutting groove part is detachably connected with the driving part.

2. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 1, characterized in that: The driving unit comprises: Fixed plate (2); The drilling machine (1) is fixedly mounted on one side of the fixing plate (2).

3. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 2, characterized in that: The connecting portion comprises: A connecting pipe (5) is coaxially arranged with the output shaft of the drilling rig (1); At least one slide groove (18) is provided on the outer side wall of the connecting pipe (5), and the slide groove (18) is arranged along the length direction of the connecting pipe (5).

4. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 3, characterized in that: The drilling unit comprises: A drill bit connecting rod (12) is coaxially fixed to one end of the connecting pipe (5); The drill bit (11) is coaxially fixed to the outside of the drill bit connecting rod (12), and the drill bit (11) is located at an end of the drill bit connecting rod (12) away from the drilling machine (1).

5. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 4, characterized in that: The transmission part comprises: A threaded rod (19) is coaxially arranged in the connecting tube (5), one end of the threaded rod (19) is coaxially rotatably connected to a shaft seat (17), and the shaft seat (17) is fixed in the connecting tube (5); A polished rod (23) is coaxially fixed to one end of the threaded rod (19) away from the shaft seat (17); the diameter of the polished rod (23) is smaller than the diameter of the threaded rod (19); the polished rod (23) extends out of the connecting pipe (5) and is coaxially fixed to the output shaft of the drilling rig (1) through a connecting head (3); A threaded ring (20) is threadedly connected to the outside of the threaded rod (19) / emptily sleeved on the outside of the smooth rod (23), and at least one connecting block (21) is fixedly connected to the outer wall of the threaded ring (20), and the connecting block (21) is slidably connected in the sliding groove (18).

6. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 5, characterized in that: The cutting portion comprises: A sliding sleeve (6) is slidably connected to the outer wall of the connecting pipe (5), and the inner wall of the sliding sleeve (6) is fixedly connected to an end of the connecting block (21) extending out of the sliding groove (18); A plurality of second meshing teeth (22) are arranged at equal intervals in the circumferential direction on the inner wall of the sliding sleeve (6), and the second meshing teeth (22) penetrate one end of the sliding sleeve (6); A plurality of first meshing teeth (4) are arranged at equal intervals in the circumferential direction on the outer wall of the connector (3), and the plurality of second meshing teeth (22) and the plurality of first meshing teeth (4) are meshed with each other; The grooving knife (7) is fixedly connected to the outer side wall of the sliding sleeve (6).

7. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 6, characterized in that: A limit handle (9) is fixedly connected to the outer wall of the connecting tube (5), the limit handle (9) is close to the fixing plate (2), the limit handle (9) is detachably connected to the limit groove (8), the limit groove (8) is arranged on one side of the sliding sleeve (6), one end of the limit groove (8) passes through the sliding sleeve (6), a magnetic block (10) is fixedly connected to one side of the limit handle (9), and the magnetic block (10) is in magnetic contact with the inner wall of the limit groove (8).

8. A slotting and drilling device for controlling over-excavation of tunnel perimeter eye blasting according to claim 4, characterized in that: The drill bit connecting rod (12) and the drill bit (11) are fixedly connected via a conveying blade (13), and the conveying blade (13) is spirally arranged between the drill bit connecting rod (12) and the drill bit (11).

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