Tunnel peripheral hole drilling and splitting device

Abstract

The invention belongs to the technical field of tunnel construction equipment, and particularly relates to a tunnel peripheral hole drilling and splitting device. The device comprises a needle beam, an annular track, a drilling device and a splitting device, the annular track is arranged on the needle beam, and the axis of the annular track is parallel to the length direction of the needle beam; the drilling device and the splitting device are both arranged on the annular rail in a sliding mode and can move along the annular rail, so that opening of holes in the periphery of the tunnel and splitting of rocks on the periphery of the tunnel are achieved. According to the tunnel peripheral hole drilling and splitting device provided by the invention, the drilling device and the splitting device can move along the annular track, so that the drilling device and the splitting device can accurately and quickly move to working positions along the annular track according to requirements, and peripheral hole forming and peripheral rock splitting work can be quickly completed; therefore, the tunnel excavation efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction equipment, and particularly relates to a drilling and splitting device for peripheral holes of a tunnel. Background Art

[0002] In the prior art, during the process of tunnel excavation using the drilling and splitting method, a drilling device is required to open operation holes, and after the operation holes are opened, the working end of the splitting device is inserted into the operation holes to split the rock, so that the rock at the face is broken to complete the tunnel excavation.

[0003] The above-mentioned operation holes include peripheral holes and intermediate holes, where The peripheral holes refer to the operation holes arranged along the edge of the tunnel on the face. During the process of opening the peripheral holes, due to the limitation of the tunnel wall (the drilling device is likely to abut against the tunnel wall), it is difficult to accurately and quickly adjust the position of the drilling device. Meanwhile, when splitting the rock, the drilling device needs to be withdrawn from the tunnel, and the working end of the splitting device should be able to enter the tunnel and accurately insert into the operation holes to avoid the dislocation of the working end of the splitting device and the operation holes caused by the assembly error, which may lead to the damage of the working end of the splitting device during the splitting operation. When adjusting the position of the splitting device, only the whole machine of the splitting device can be moved for adjustment, with a large adjustment range and a long adjustment time, affecting the work efficiency and significantly reducing the tunnel excavation efficiency, thus affecting the project progress. Therefore, inventing a peripheral hole drilling and splitting device that can accurately and quickly adjust the positions of the drilling device and the splitting device is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] The present invention provides a drilling and splitting device for peripheral holes of a tunnel to solve the technical problem that in the prior art, during the processes of opening peripheral holes of the tunnel and splitting the surrounding rock, it is difficult to accurately and quickly adjust the positions of the drilling device and the splitting device, resulting in a significant reduction in the tunnel excavation efficiency.

[0005] To solve the above problems, the present invention is realized through the following technical solutions: A drilling and splitting device for peripheral holes of a tunnel includes a needle beam, an annular track, a drilling device, and a splitting device; The annular track is arranged on the needle beam, and the axis of the annular track is parallel to the length direction of the needle beam; Both the drilling device and the splitting device are slidably arranged on the annular track, and the drilling device and the splitting device can move along the annular track to realize the opening of peripheral holes of the tunnel and the splitting of the surrounding rock of the tunnel.

[0006] To better implement the present invention, further optimization is made to the above structure: there are two annular tracks, and the two annular tracks are coaxially arranged on the needle beam, and the two annular tracks are connected and fixed by a support rod to form a cylindrical frame; Both ends of the drilling device and both ends of the splitting device are respectively slidably arranged on the two annular tracks.

[0007] To better implement the present invention, further optimization is made to the above structure. The circular tunnel peripheral hole drilling and splitting device further includes a support frame, the support frame is in the structure of an annular frame, the support frame is sleeved on the needle beam, and the support frame can slide along the length direction of the needle beam, and the annular track is arranged on the support frame.

[0008] To better implement the present invention, further optimization is made to the above structure. The cross-sectional shape of the needle beam and the cross-sectional shape of the support frame are both rectangular. The width of the inner side wall of the support frame is greater than the width of the needle beam, and the height of the inner side wall of the support frame is greater than the height of the needle beam. The support frame is sleeved on the needle beam, and the width direction of the support frame corresponds to the width direction of the needle beam, and the height direction of the support frame corresponds to the height direction of the needle beam.

[0009] To better implement the present invention, further optimization is made to the above structure. A telescopic traveling driving member is arranged on the needle beam, the action direction of the action end of the traveling driving member is parallel to the length direction of the needle beam, and the action end of the traveling driving member is connected to the support frame.

[0010] To better implement the present invention, further optimization is made to the above structure. Limiting screws are arranged on both sides of the support frame, and the abutting ends of the limiting screws pass through the support frame and abut against the needle beam.

[0011] To better implement the present invention, further optimization is made to the above structure. The annular track includes a top arc section, a bottom arc section and two groups of side arc sections; The top arc section is arranged above the support frame through a support rod, and a first telescopic rod is arranged in the middle of the top arc section. The telescopic end of the first telescopic rod passes through the support frame and is connected to the needle beam; The side arc section includes an upper side track and a lower side track; the fixed end of the upper side track is hinged to the end of the top arc section, and the movable end of the upper side track is connected to the support rod through a second telescopic rod; a bottom plate is arranged on the lower end surface of the support frame, the plane where the bottom plate is located is parallel to the horizontal plane, a sliding seat and a third telescopic rod are respectively arranged on the upper end surface and the lower end surface of the bottom plate, the action direction of the third telescopic rod is perpendicular to the plane where the bottom plate is located, the telescopic end of the third telescopic rod is connected to the fixed end of the lower side track, a sliding block sliding along the width direction of the needle beam is arranged on the sliding seat, a fourth telescopic rod is hinged on the sliding block, and the action end of the fourth telescopic rod is connected to the movable end of the lower side track; the two groups of side arc sections are respectively located on both sides of the support frame; The bottom arc segment is arranged below the support frame through a swing assembly, and the bottom arc segment can swing between the two annular tracks through the swing assembly; When the annular track is in the unfolded state, the head and tail of the top arc segment, one set of side arc segments, the bottom arc segment, and the other set of side arc segments are butt-jointed in sequence.

[0012] To better implement the present invention, further optimization is made to the above structure. A plurality of engaging teeth are arranged on the outer side wall of the annular track, and the plurality of engaging teeth are arranged circumferentially around the annular track, so that the annular track forms a toothed ring structure; The drilling device includes a first sliding block, a first driving motor, and a drilling part. Both ends of the first sliding block are slidably arranged on the opposite sides of the two annular tracks. The first driving motor and the drilling part are both arranged on the first sliding block, and a first driving gear meshing with the engaging teeth is arranged at the action end of the first driving motor; The splitting device includes a second sliding block, a second driving motor, and a splitting part. Both ends of the second sliding block are slidably arranged on the two sides of the two annular tracks. The second driving motor and the drilling part are both arranged on the second sliding block, and a second driving gear meshing with the engaging teeth is arranged at the action end of the second driving motor.

[0013] To better implement the present invention, further optimization is made to the above structure. The drilling device further includes a first telescopic device. The first telescopic device is arranged on the first sliding block. The action direction of the action end of the first telescopic device is parallel to the length direction of the needle beam. The drilling part is slidably arranged on the first sliding block along the length direction of the first sliding block, and the action end of the first telescopic device is connected to the drilling part; The splitting device further includes a second telescopic device. The second telescopic device is arranged on the second sliding block. The action direction of the action end of the second telescopic device is parallel to the length direction of the needle beam. The splitting part is slidably arranged on the second sliding block along the length direction of the second sliding block, and the second telescopic device is arranged at the action end of the second telescopic device.

[0014] To better implement the present invention, further optimization is made to the above structure. The number of both the drilling device and the splitting device is multiple.

[0015] The present invention has the following beneficial effects compared with the prior art: In the tunneling peripheral hole drilling and splitting device provided by the present invention, both the drilling device and the splitting device can move along the annular track, so that the drilling device and the splitting device can accurately and quickly move to the working position along the annular track according to requirements, so as to quickly complete the opening of the peripheral holes and the splitting of the peripheral rocks, thereby improving the tunneling excavation efficiency. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a tunneling peripheral hole drilling and splitting device of the present invention when in the unfolded state.

[0018] Figure 2 It is a schematic structural diagram of a tunneling peripheral hole drilling and splitting device of the present invention when in the contracted state.

[0019] Figure 3 It is a schematic structural diagram of a cylindrical frame composed of two annular tracks in a tunneling peripheral hole drilling and splitting device of the present invention.

[0020] Figure 4 It is a schematic structural diagram of an annular track in a tunneling peripheral hole drilling and splitting device of the present invention when in the unfolded state.

[0021] Figure 5 It is a schematic structural diagram of an annular track in a tunneling peripheral hole drilling and splitting device of the present invention when in the contracted state.

[0022] Figure 6 It is a schematic structural diagram of a needle beam in a tunneling peripheral hole drilling and splitting device of the present invention.

[0023] Figure 7 It is a schematic structural diagram of a splitting device in a tunneling peripheral hole drilling and splitting device of the present invention.

[0024] Figure 8 It is a schematic structural diagram of a drilling device in a tunneling peripheral hole drilling and splitting device of the present invention.

[0025] In the figure: 1. Needle beam; 11. Travel driving member; 2. Annular track; 21. Support rod; 22. Top arc section; 23. Bottom arc section; 24. Side arc section; 251. Support rod; 252. First telescopic rod; 253. Second telescopic rod; 254. Bottom plate; 255. Third telescopic rod; 256. Sliding seat; 257. Fourth telescopic rod; 258. Swing assembly; 3. Support frame; 31. Limit screw; 4. Drilling device; 41. First sliding block; 42. Drilling part; 43. First telescopic device; 5. Splitting device; 51. Second sliding block; 52. Splitting part; 53. Second telescopic device; 54. Second driving motor. Detailed Implementation Manner

[0026] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope protected by the present invention.

[0027] In the description of the present invention, it should be noted that unless otherwise stated, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and 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 thus cannot be construed as a limitation on the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it 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. 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.

[0029] In the embodiments of the present application, as Figures 1 to 8 shown, the tunnel perimeter hole drilling and splitting device includes a needle beam 1, an annular track 2, a drilling device 4, and a splitting device 5, see Figure 1 ; among them, The annular track 2 is arranged on the needle beam 1, and the axis of the annular track 2 is parallel to the length direction of the needle beam 1; Both the drilling device 4 and the splitting device 5 are slidably arranged on the annular track 2, and the drilling device 4 and the splitting device 5 can move along the annular track 2 to realize the opening of the perimeter holes and the splitting of the rock around the tunnel.

[0030] When the work of opening the tunnel perimeter holes needs to be carried out, the staff can move the tunnel perimeter hole drilling and splitting device to the face, and adjust the position of the drilling device 4 according to the position where the holes need to be opened, so that the drilling device 4 can open the first group of perimeter holes at the corresponding position; After the first set of peripheral holes are drilled, the staff can control the drilling device 4 to move to the position where the next set of peripheral holes need to be drilled, and at the same time, control the splitting device 5 to move to the position of the first set of peripheral holes, and make the working end of the splitting device 5 accurately insert into the first set of peripheral holes for splitting work. The entire hole drilling and splitting process can be carried out continuously, thus effectively improving the excavation efficiency of the tunnel.

[0031] In addition, the drilling device 4 and the splitting device 5 are always on the annular track 2. By precisely controlling the positions of the drilling device 4 and the splitting device 5, the working end of the splitting device 5 will not deviate, resulting in an assembly error where the working end of the splitting device 5 is misaligned with the peripheral hole. Furthermore, the problem of damage to the working end of the splitting device 5 during the splitting operation can be avoided.

[0032] In some embodiments, there are two annular tracks 2. The two annular tracks 2 are coaxially arranged on the needle beam 1, and the two annular tracks 2 are connected and fixed by a support rod 21 to form a cylindrical frame, see Figure 3 ; Both ends of the above-mentioned drilling device 4 and splitting device 5 are respectively slidably arranged on the two annular tracks 2; The staff can adjust the positions of the drilling device 4 and the splitting device 5 on the annular track 2 according to the positions where holes need to be drilled or split, so as to better complete the opening of the peripheral holes and the splitting of the peripheral rocks on the heading face.

[0033] It should be noted that during the hole drilling process, since the working end of the drilling device 4 contacts the heading face and moves deeper into the heading face, the heading face will exert a reaction force on the drilling device 4, and the two annular tracks 2 can provide good support and force relief for the drilling device 4 to ensure the stability of the drilling device 4 during operation.

[0034] In some embodiments, the tunnel peripheral hole drilling and splitting device further includes a support frame 3, see Figure 2 , the support frame 3 is in the structure of an annular frame. The support frame 3 is sleeved on the needle beam 1, and the support frame 3 can slide along the length direction of the needle beam 1. The annular track 2 is arranged on the support frame 3; The staff can adjust the positional relationship between the support frame 3 and the needle beam 1 according to needs. For example, move the support frame 3 closer to the heading face to reduce the distance between the drilling device 4 and the heading face, so as to reduce the eccentricity of the drill bit when the drilling device 4 is working, thereby improving the opening accuracy of the peripheral holes.

[0035] In some embodiments, the cross-sectional shapes of the above-mentioned needle beam 1 and the support frame 3 are both rectangular. The width of the inner side wall of the support frame 3 is greater than the width of the needle beam 1. The support frame 3 is sleeved on the needle beam 1, and the height direction of the support frame 3 corresponds to the height direction of the needle beam 1, and the width direction of the support frame 3 corresponds to the width direction of the needle beam 1. This setting method can reduce the contact between the support frame 3 and the needle beam 1 (in the normal state, only the top wall of the inner ring of the support frame 3 contacts the upper end surface of the needle beam 1), and ensure good support, making the sliding of the support frame 3 smoother.

[0036] In some embodiments, a telescopic traveling driving member 11 is provided on the above-mentioned needle beam 1. Refer to Figure 6 , the movement direction of the action end of the traveling driving member 11 is parallel to the length direction of the needle beam 1. The action end of the traveling driving member 11 is connected to the support frame 3 to better adjust the positional relationship between the support frame 3 and the needle beam 1. Preferably, telescopic support feet are provided on both the needle beam 1 and the support frame 3, and the automatic traveling of the tunnel peripheral hole drilling and splitting device in the tunnel is realized through the cooperation of multiple support feet; The specific operation is as follows: The staff can first control the support feet on the needle beam 1 to extend so that they support on the bottom wall of the tunnel; at this time, the support feet on the support frame 3 should be in a contracted state, that is, the support feet on the support frame 3 do not contact the side wall of the tunnel. The above-mentioned traveling driving member 11 can then push or pull the support frame 3 to move the support frame 3 along the needle beam 1 in the direction close to the heading face; When the support frame 3 moves to the designated position or the traveling driving member 11 reaches the limit position, the staff can control the support feet on the support frame 3 to extend so that they support on the side wall of the tunnel, and control the support feet on the needle beam 1 to retract so that the support feet on the needle beam 1 are separated from the bottom wall of the tunnel; at this time, control the traveling driving member 11 to pull or push the needle beam 1 to move on the support frame 3; Stop when the needle beam 1 moves to the designated position or the traveling driving member 11 reaches the limit position, and repeat the above operation to realize the traveling of the tunnel peripheral hole drilling and splitting device in the tunnel.

[0037] In some embodiments, limit screws 31 are provided on both sides of the above-mentioned support frame 3. The abutting end of the limit screw 31 passes through the support frame 3 and abuts on the needle beam 1 to realize the locking of the lateral position of the support frame 3 and the needle beam 1; When it is necessary to adjust the tunneling direction of the tunnel, the staff can loosen the limit screws 31 on both sides of the support frame 3, and then swing the support frame 3. Specifically, control the lengths of the support feet on both sides of the support frame 3 to extend differently, so that the axis of the support frame 3 deflects, so that the axis of the support frame 3 is parallel to the tunnel excavation direction, and then adjust the position of the needle beam 1 so that the axis of the needle beam 1 coincides with the axis of the support frame 3 to complete the turning of the tunnel peripheral hole drilling and splitting device. Finally, lock the limit screw 31 to prevent the positions of the needle beam 1 and the support frame 3 from shifting during the process of moving the drilling and splitting device for the peripheral holes of the tunnel.

[0038] In some embodiments, the above-mentioned annular track 2 includes a top arc section 22, a bottom arc section 23, and two sets of side arc sections 24, as shown in Figure 4 and Figure 5 ; The top arc section 22 is arranged above the support frame 3 through two support rods 251. The two support rods 251 are respectively arranged near the two top corners of the support frame 3. The ends of the two support rods 251 away from the support frame 3 are respectively connected to the two ends of the top arc section 22, so that the position of the top arc section 22 is relatively fixed with respect to the support frame 3. A first telescopic rod 252 is arranged in the middle of the top arc section 22. The telescopic end of the first telescopic rod 252 passes through the support frame 3 and is connected to the needle beam 1 to determine the distance between the top arc section 22 and the needle beam 1. The staff can adjust the distance between the top arc section 22 and the needle beam 1 by adjusting the length of the first telescopic rod 252; The side arc section 24 includes an upper side track and a lower side track; among them, The fixed end of the upper side track is hinged to the end of the top arc section 22, and the movable end of the upper side track is connected to the support rod 251 through a second telescopic rod 253. The staff can adjust the distance between the movable end of the upper side track and the needle beam 1 by adjusting the length of the second telescopic rod 253; A bottom plate 254 is arranged on the lower end surface of the support frame 3. The plane where the bottom plate 254 is located is parallel to the horizontal plane. A sliding seat 256 and a third telescopic rod 255 are respectively arranged on the upper end surface and the lower end surface of the bottom plate 254. The action direction of the third telescopic rod 255 is perpendicular to the plane where the bottom plate 254 is located. The telescopic end of the third telescopic rod 255 is connected to the fixed end of the lower side track. A sliding block sliding along the width direction of the needle beam 1 is arranged on the sliding seat 256. A fourth telescopic rod 257 is hinged on the sliding block. The action end of the fourth telescopic rod 257 is connected to the movable end of the lower side track. The staff can adjust the distance between the lower side track and the needle beam 1 by adjusting the lengths of the third telescopic rod 255 and the fourth telescopic rod 257; The two sets of side arc sections 24 are respectively located on both sides of the support frame 3; The bottom arc section 23 is arranged below the support frame 3 through a swinging assembly 258. The bottom arc section 23 can swing between the two annular tracks 2 through the swinging assembly 258 to increase the distance between the bottom arc section 23 and the bottom wall of the tunnel; When it is necessary to open the peripheral holes of the circular tunnel and split the surrounding rock, the staff can adjust the positions of the top arc section 22, the bottom arc section 23, and the two groups of side arc sections 24 by controlling the above-mentioned first telescopic rod 252, second telescopic rod 253, third telescopic rod 255, fourth telescopic rod 257, and swing assembly 258, so that the head and tail of the top arc section 22, one group of side arc sections 24, the bottom arc section 23, and the other group of side arc sections 24 are docked in sequence, that is, the annular track 121 is in the unfolded state. See Figure 1 , the above-mentioned drilling device 4 and splitting device 5 can move along the annular track 2 to the corresponding positions for drilling and splitting operations; When it is necessary to carry out the tunneling work of the semi-circular tunnel, the staff can adjust the positions of the top arc section 22 and the side arc section 24 by controlling the above-mentioned first telescopic rod 252, second telescopic rod 253, third telescopic rod 255, and fourth telescopic rod 257, so that the top arc section 22 and the side arc section 24 are unfolded to form a semi-circular arc track. The above-mentioned drilling device 4 and splitting device 5 can move along the semi-circular arc track to the corresponding positions for drilling and splitting operations; When it is necessary to adjust the position of the tunnel peripheral hole drilling and splitting device, the staff can control the above-mentioned first telescopic rod 252, second telescopic rod 253, third telescopic rod 255, fourth telescopic rod 257, and swing assembly 258 to act, so as to adjust the positions of the top arc section 22, the bottom arc section 23, and the two groups of side arc sections 24, so that the top arc section 22, the bottom arc section 23, and the two groups of side arc sections 24 contract towards the direction close to the needle beam 1, that is, the annular track 2 is in the contracted state. See Figure 2 , to avoid the situation that the annular track 2 or the drilling device 4 and splitting device 5 on the annular track 2 touch the tunnel wall during the traveling process, which affects the traveling of the tunnel peripheral hole drilling and splitting device.

[0039] It should be noted that when the annular track 2 changes from the unfolded state to the contracted state, the drilling device 4 and splitting device 5 located on the annular track 2 must be in any one of the top arc section 22, the bottom arc section 23, the upper track, and the lower track, and cannot be at the junction of the top arc section 22, the bottom arc section 23, the upper track, and the lower track.

[0040] In some embodiments, a plurality of engaging teeth are provided on the outer side wall of the annular track 2, and the plurality of engaging teeth are arranged circumferentially around the annular track 2, so that the annular track 2 forms a toothed ring structure. See Figure 4 and Figure 5 ; The drilling device 4 includes a first sliding block 41, a first driving motor (not shown in the figure), and a drilling part 42. See Figure 8, both ends of the first sliding block 41 are slidably arranged on the opposite sides of the two annular tracks 2. The first driving motor and the drilling part 42 are both arranged on the first sliding block 41, and a first driving gear meshing with the engaging teeth is arranged at the action end of the first driving motor; The splitting device 5 includes a second sliding block 51, a second driving motor 54 and a splitting part 52. Refer to Figure 7 , both ends of the second sliding block 51 are slidably arranged on the opposite sides of the two annular tracks 2. The second driving motor 54 and the drilling part 42 are both arranged on the second sliding block 51, and a second driving gear meshing with the engaging teeth is arranged at the action end of the second driving motor 54; The staff can control the actions of the first driving motor and the second driving motor 54 to move the drilling device 4 and the splitting device 5 on the annular track 2, so as to adjust the positions of the drilling device 4 and the splitting device 5. And through the meshing of the first driving gear and the second driving gear with the engaging teeth, the positions of the drilling device 4 and the splitting device 5 can be accurately controlled, so as to accurately control the positions of drilling and splitting, and avoid the situation that the working end of the splitting device 5 is misaligned with the positions of the surrounding holes, resulting in the splitting work being unable to be carried out, or the working end of the splitting device 5 being damaged during the splitting process.

[0041] It should be noted that the outer side wall of the above-mentioned annular track 2 is divided into a slide rail and a gear ring along its center line. Refer to Figure 4 and Figure 5 , two "concave"-shaped sliding parts are arranged on the first sliding block 41 and the second sliding block 51. The openings of the two sliding parts are arranged opposite to each other, and the openings are clamped on the slide rail, so that the first sliding block 41 and the second sliding block 51 can slide along the slide rail. The first driving gear at the action end of the first driving motor and the second driving gear at the action end of the second driving motor 54 are both meshed with the gear ring to ensure that the drilling device 4 and the splitting device 5 can slide smoothly along the annular track 2. Preferably, the numbers of the above-mentioned drilling devices 4 and splitting devices 5 are both multiple, and multiple drilling devices 4 and splitting devices 5 can work simultaneously to further improve the working efficiency of the drilling and splitting device for the peripheral holes of the tunnel.

[0042] In some embodiments, the drilling device 4 further includes a first telescopic device 43. The first telescopic device 43 is arranged on the first sliding block 41. The action direction of the action end of the first telescopic device 43 is parallel to the length direction of the needle beam 1. The drilling part 42 is slidably arranged on the first sliding block 41 along the length direction of the first sliding block 41. The action end of the first telescopic device 43 is connected to the drilling part 42. Refer to Figure 8, the first telescopic device 43 can send the drilling part 42 to the position of the heading face, so as to reduce the distance between the working end of the drilling part 42 and the heading face, avoid the situation that the distance between the working end of the drilling part 42 and the body of the drilling part 42 is too large, and prevent the working end of the drilling part 42 from being eccentric due to the influence of gravity, resulting in the situation that the peripheral holes opened do not meet the requirements, so as to improve the opening accuracy of the peripheral holes; The splitting device 5 further includes a second telescopic device 53. The second telescopic device 53 is arranged on the second sliding block 51. The action direction of the action end of the second telescopic device 53 is parallel to the length direction of the needle beam 1. The splitting part 52 is slidably arranged on the second sliding block 51 along the length direction of the second sliding block 51. The action end of the second telescopic device 53 is connected to the splitting part 52. Refer to Figure 7 , the second telescopic device 53 can send the splitting part 52 into the drilled operation hole for splitting work.

[0043] As mentioned above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A tunnel peripheral hole drilling and splitting device, characterized in that: It comprises a needle beam (1), a ring track (2), a drilling device (4) and a splitting device (5); The annular track (2) is arranged on the needle beam (1), and the axis of the annular track (2) is parallel to the length direction of the needle beam (1); The drilling device (4) and the splitting device (5) are both slidably arranged on the annular track (2); the drilling device (4) and the splitting device (5) can move along the annular track (2) to achieve the opening of holes around the tunnel and the splitting of rocks around the tunnel.

2. The tunnel peripheral hole drilling and splitting device according to claim 1, characterized in that: There are two annular tracks (2), the two annular tracks (2) are coaxially arranged on the needle beam (1), and the two annular tracks (2) are connected and fixed via a support rod (21) to form a cylindrical frame; Both ends of the drilling device (4) and both ends of the splitting device (5) are respectively slidably arranged on two annular tracks (2).

3. The tunnel peripheral hole drilling and splitting device according to claim 2, characterized in that: It also comprises a support frame (3), which is an annular frame structure, the support frame (3) is sleeved on the needle beam (1), and the support frame (3) can slide along the length direction of the needle beam (1), and the annular track (2) is arranged on the support frame (3).

4. The tunnel peripheral hole drilling and splitting device according to claim 3, characterized in that: The cross-sectional shape of the needle beam (1) and the cross-sectional shape of the support frame (3) are both rectangular, the width of the inner wall of the support frame (3) is greater than the width of the needle beam (1), the height of the inner wall of the support frame (3) is greater than the height of the needle beam (1), the support frame (3) is sleeved on the needle beam (1), and the width direction of the support frame (3) corresponds to the width direction of the needle beam (1), and the height direction of the support frame (3) corresponds to the height direction of the needle beam (1).

5. The tunnel peripheral hole drilling and splitting device according to claim 4, characterized in that: A retractable travel drive member (11) is provided on the needle beam (1); the movement direction of an action end of the travel drive member (11) is parallel to the length direction of the needle beam (1); and the action end of the travel drive member (11) is connected to the support frame (3).

6. The tunnel peripheral hole drilling and splitting device according to claim 5, characterized in that: Limiting screws (31) are provided on both sides of the support frame (3), and the abutting ends of the limiting screws (31) pass through the support frame (3) and abut on the needle beam (1).

7. The tunnel peripheral hole drilling and splitting device according to claim 4, characterized in that: The annular track (2) comprises a top arc segment (22), a bottom arc segment (23) and two groups of side arc segments (24); The top arc section (22) is arranged above the support frame (3) via a support rod (251), a first telescopic rod (252) is arranged in the middle of the top arc section (22), and the telescopic end of the first telescopic rod (252) passes through the support frame (3) and is connected to the needle beam (1); The side arc section (24) comprises an upper rail and a lower rail; the fixed end of the upper rail is hinged to the end of the top arc section (22), and the movable end of the upper rail is connected to the support rod (251) through the second telescopic rod (253); the lower end surface of the support frame (3) is provided with a bottom plate (254), the plane where the bottom plate (254) is located is parallel to the horizontal plane, the upper end surface and the lower end surface of the bottom plate (254) are respectively provided with a sliding seat (256) and a third telescopic rod (255), the movement direction of the third telescopic rod (255) is perpendicular to the plane where the bottom plate (254) is located, the telescopic end of the third telescopic rod (255) is connected to the fixed end of the lower rail, the sliding seat (256) is provided with a sliding block that slides along the width direction of the needle beam (1), the sliding block is hinged to a fourth telescopic rod (257), and the movement end of the fourth telescopic rod (257) is connected to the movable end of the lower rail; the two groups of side arc sections (24) are respectively located on both sides of the support frame (3); The bottom arc segment (23) is arranged below the support frame (3) via a swing assembly (258), and the bottom arc segment (23) can swing between the two annular tracks (2) via the swing assembly (258); When the annular track (2) is in an unfolded state, the top arc segment (22), one group of side arc segments (24), the bottom arc segment (23), and the other group of side arc segments (24) are butted in sequence head to tail.

8. The tunnel peripheral hole drilling and splitting device according to claim 7, characterized in that: The outer side wall of the annular track (2) is provided with a plurality of meshing teeth, and the plurality of meshing teeth are arranged circumferentially around the annular track (2), so that the annular track (2) forms a gear ring structure; The drilling device (4) comprises a first sliding block (41), a first driving motor and a drilling unit (42); two ends of the first sliding block (41) are slidably arranged on opposite sides of two annular tracks (2); the first driving motor and the drilling unit (42) are both arranged on the first sliding block (41); and an actuating end of the first driving motor is provided with a first driving gear meshing with the meshing teeth; The splitting device (5) comprises a second sliding block (51), a second drive motor (54) and a splitting portion (52); two ends of the second sliding block (51) are slidably arranged on both sides of two annular tracks (2); the second drive motor (54) and the drilling portion (42) are both arranged on the second sliding block (51); and an action end of the second drive motor (54) is provided with a second drive gear meshing with the engaging teeth.

9. The tunnel peripheral hole drilling and splitting device according to claim 8, characterized in that: The drilling device (4) further comprises a first telescopic device (43), the first telescopic device (43) being arranged on the first sliding block (41), the action direction of an action end of the first telescopic device (43) being parallel to the length direction of the needle beam (1), the drilling portion (42) being slidably arranged on the first sliding block (41) along the length direction of the first sliding block (41), and the action end of the first telescopic device (43) being connected to the drilling portion (42); The splitting device (5) further comprises a second telescopic device (53), the second telescopic device (53) being arranged on the second sliding block (51), the movement direction of the movement end of the second telescopic device (53) being parallel to the length direction of the needle beam (1), the splitting portion (52) being slidably arranged on the second sliding block (51) along the length direction of the second sliding block (51), and the second telescopic device (53) being arranged at the movement end of the second telescopic device (53).

10. The tunnel peripheral hole drilling and splitting device according to claim 9, characterized in that: The number of the drilling devices (4) and the number of the splitting devices (5) are both plural.

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