Device and method for controlling outer inserting angle of tunnel blasting peripheral hole

Abstract

The invention discloses a device for controlling an outer inserting angle of a tunnel blasting peripheral hole, and belongs to the technical field of tunnel blasting, the device comprises a fixed base, a fixed screw rod is slidably connected to the fixed base, a fixed shell is fixedly mounted on the fixed screw rod, a driver is fixedly mounted in the fixed shell, and the driver is connected with the fixed base. The output end of the driver is fixedly connected with a fixed drill rod; and the limiting structure comprises a threaded pipe arranged on the outer side of the fixed drill rod in a sleeving mode, the side wall of the threaded pipe is fixedly connected with a fixed block, the fixed block is fixedly connected with a fixed plate, the fixed plate is fixedly connected with the side wall of the fixed shell, and the inner wall of the threaded pipe is in threaded connection with a limiting pipe. The attaching block at the tail end of the limiting device can rotate at the horizontal angle and the vertical angle, so that the attaching block can be attached to the inner walls of tunnels with different inclined planes, the limiting effect of the limiting structure is better, the device is more accurate, and tunnel blasting construction is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel blasting, in particular to a device and method for controlling the external insertion angle of peripheral eyes in tunnel blasting. BACKGROUND

[0002] In the tunnel constructed by the drill and blast method, overbreak and underbreak often occur, which not only seriously affects the stability of the tunnel supporting structure system, but also increases the amount of slag and backfill masonry, thus greatly increasing the construction cost of the tunnel, so a peripheral eye external insertion angle control device is needed to accurately control the drilling angle of the peripheral eyes in tunnel blasting construction, so as to reduce overbreak and underbreak and improve the stability of the surrounding rock.

[0003] The existing device for controlling the external insertion angle of peripheral eyes is difficult to fit the inner wall of the tunnel during use, resulting in errors in the limiting function, poor effect of the device, and the existing device is difficult to fix, which is not conducive to drilling. SUMMARY

[0004] The present application relates to the technical field of tunnel blasting, in particular to a device and method for controlling the external insertion angle of peripheral eyes in tunnel blasting.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A device for controlling the external insertion angle of peripheral eyes in tunnel blasting, comprising:

[0007] A fixed base, a fixed screw rod is slidably connected to the fixed base, a fixed housing is fixedly installed on the fixed screw rod, a drive is fixedly installed inside the fixed housing, and a fixed drill rod is fixedly connected to the output end of the drive;

[0008] A limiting structure, the limiting structure comprises a threaded pipe sleeved outside the fixed drill rod, a fixed block is fixedly connected to the side wall of the threaded pipe, a fixed plate is fixedly connected to the fixed block, and the fixed plate is fixedly connected to the side wall of the fixed housing, a limiting pipe is threadedly connected to the inner wall of the threaded pipe, and a fitting block is fixedly connected to the limiting pipe through an adjusting structure, and the limiting pipe and the fitting block are both sleeved outside the fixed drill rod.

[0009] Preferably, the adjusting structure comprises a fixing block and a connecting block, the fixing block is fixedly connected with the side wall of the fitting block, the connecting block is fixedly connected with the side wall of the limiting tube, connecting grooves are formed in the fixing block and the connecting block and penetrate the fixing block and the connecting block, connecting shafts are rotatably connected between the inner walls of the connecting grooves, connecting sleeve rods are fixedly sleeved on the connecting shafts, and a mounting rod is fixedly connected between the corresponding connecting sleeve rods, the corresponding connecting grooves are perpendicular to each other, and the fixing block, the connecting block, the connecting shafts and the connecting sleeve rods are made of alloy.

[0010] Preferably, the fixing rod is rotatably connected with an adjusting screw block, and the adjusting screw block is threadedly sleeved on the outside of the fixed screw rod.

[0011] Preferably, the fixing base is provided with a fixing structure, the fixing structure comprises a threaded ring fixedly connected to the fixing base, a fixed insertion rod is threadedly connected to the inside of the threaded ring, and the fixed insertion rod penetrates the fixing base and extends below the fixing base, a rotating block is fixedly connected to the top end of the fixed insertion rod, a fixed spring is sleeved on the outside of the fixed insertion rod, and the two ends of the fixed spring are rotatably connected with the corresponding threaded ring and rotating block.

[0012] Preferably, the side wall of the fixing base is provided with a chamfer, the bottom end of the fixing base is fixedly provided with a fixed cushion layer, and a damper is fixedly installed in the fixed cushion layer.

[0013] Preferably, the fixing plate is fixedly provided with a pressure sensor, and the driver is fixedly provided with an alarm corresponding to the pressure sensor.

[0014] Preferably, the fixing shell is provided with an opening penetrating the fixing shell, and the fixed drill rod penetrates the opening and extends to the outside of the fixing shell.

[0015] A method for controlling the external insertion angle of a peripheral hole in tunnel blasting, comprising the following steps:

[0016] S1, move the device to the position of the peripheral hole drilling in the tunnel, adjust the angle of the fixed drill rod, rotate the rotating block to make the fixed insertion rod rotate, move the fixed insertion rod downward to insert into the ground, fix the fixing base, at this time the fixed spring is contracted, then rotate the adjusting screw block, under the action of the thread, the fixed screw rod moves up and down with the rotation of the adjusting screw block, adjust the position of the driver and the fixed drill rod, so that the position of the fixed drill rod corresponds to the position of the peripheral hole drilling;

[0017] S2, rotate the limiting pipe to adjust the length of the limiting pipe, thereby limiting the length of the fixed drill pipe drilling hole, avoiding the length of the peripheral eye drilling hole being too deep, then starting the driver, the output end of the driver drives the fixed drill pipe to rotate to drill, as the drilling proceeds, the limiting pipe and the abutting block approach the tunnel inner wall, finally making the abutting block adhere to the tunnel inner wall, at this time, the connecting grooves on the fixed block and the connecting block will rotate to ensure that the abutting block can adhere to the tunnel surface, avoiding limiting errors, at this time, the drilling cannot continue, and the pressure sensor senses that the pressure increases, so that the alarm alarms;

[0018] S3, after drilling is completed, the rotating block is reversely rotated, the fixed insertion rod is moved upward, when the threads of the fixed insertion rod and the threaded ring are separated, the elastic force of the fixed spring makes the fixed insertion rod pop up, so that the fixed base can be more conveniently separated from the ground, then the adjusting structure is adjusted back to the original position, and the drilling of the next peripheral eye can be carried out.

[0019] Compared with the prior art, the beneficial effects of the present application are that the abutting block at the end of the limiting device can rotate in horizontal and vertical angles, so as to adhere to the tunnel inner wall of different inclined surfaces, the limiting effect of the limiting structure is better, the device is more accurate, and the tunnel blasting construction is facilitated, and the device is fixed through the fixing structure, the disassembly is facilitated through the cooperation of the fixed spring, and the use of the device is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A perspective structural schematic view of a device and method for controlling an external insertion angle of a peripheral eye of tunnel blasting is provided for the present application;

[0021] Figure 2 A perspective structural schematic view of a fixing structure of a device and method for controlling an external insertion angle of a peripheral eye of tunnel blasting is provided for the present application;

[0022] Figure 3 A perspective structural schematic view of a limiting ring of a device and method for controlling an external insertion angle of a peripheral eye of tunnel blasting is provided for the present application;

[0023] Figure 4 A perspective structural schematic view of an adjusting structure of a device and method for controlling an external insertion angle of a peripheral eye of tunnel blasting is provided for the present application.

[0024] In the figure: 1 fixed base, 2 fixed structure, 21 fixed plug rod, 22 threaded ring, 23 fixed spring, 24 rotating block, 3 fixed rod, 4 fixed screw, 5 adjusting screw block, 6 fixed shell, 7 adjusting structure, 71 fixed block, 72 connecting block, 73 connecting groove, 74 connecting shaft, 75 connecting sleeve rod, 76 mounting rod, 8 driver, 9 fixed drill rod, 10 threaded tube, 11 limiting tube, 12 fitting block, 13 fixed plate, 14 fixed block. DETAILED DESCRIPTION

[0025] Reference Figures 1-4 A device for controlling the external angle of peripheral eyes in tunnel blasting, comprising:

[0026] The fixed base 1 is slidably connected with the fixed screw 4, the fixed screw 4 is fixedly installed with the fixed shell 6, the inside of the fixed shell 6 is fixedly installed with the driver 8, and the output end of the driver 8 is fixedly connected with the fixed drill rod 9.

[0027] The limiting structure comprises the threaded tube 10 sleeved outside the fixed drill rod 9, the side wall of the threaded tube 10 is fixedly connected with the fixed block 14, the fixed block 14 is fixedly connected with the fixed plate 13, and the fixed plate 13 is fixedly connected with the side wall of the fixed shell 6, the inner wall of the threaded tube 10 is threadedly connected with the limiting tube 11, the limiting tube 11 is fixedly connected with the fitting block 12 through the adjusting structure 7, and the limiting tube 11 and the fitting block 12 are both sleeved outside the fixed drill rod 9.

[0028] The adjusting structure 7 comprises the fixed block 71 and the connecting block 72, the fixed block 71 is fixedly connected with the side wall of the fitting block 12, the connecting block 72 is fixedly connected with the side wall of the limiting tube 11, the fixed block 71 and the connecting block 72 are both provided with the connecting groove 73 penetrating through them, the connecting grooves 73 are both rotatably connected with the connecting shaft 74 between the inner walls thereof, the connecting shaft 74 is fixedly sleeved with the connecting sleeve rod 75 thereon, and the corresponding connecting sleeve rods 75 are fixedly connected with the mounting rod 76, the corresponding connecting grooves 73 are perpendicular to each other, and the fixed block 71, the connecting block 72, the connecting shaft 74 and the connecting sleeve rod 75 are all made of alloy, so as to improve the strength of the fixed block 71, the connecting block 72, the connecting shaft 74 and the connecting sleeve rod 75 and avoid damage thereof.

[0029] The fixed rod 3 is rotatably connected with the adjusting screw block 5, and the adjusting screw block 5 is threadedly sleeved outside the fixed screw 4, rotating the adjusting screw block 5 can adjust the position of the fixed screw 4, so as to adjust the position of the fixed drill rod 9.

[0030] The fixed base 1 is provided with a fixed structure 2, which comprises a threaded ring 22 fixedly connected to the fixed base 1, a fixed insertion rod 21 threadedly connected to the inner side of the threaded ring 22, and the fixed insertion rod 21 penetrating through the fixed base 1 and extending below the fixed base 1, the top end of the fixed insertion rod 21 being fixedly connected to a rotating block 24, and only a section of the sidewall of the fixed insertion rod 21 being provided with a thread, so that the fixed insertion rod 21 can be lifted by the elastic force of a fixed spring 23 after being rotated for a distance, the fixed insertion rod 21 being sleeved with the fixed spring 23, and the two ends of the fixed spring 23 being rotatably connected to the corresponding threaded ring 22 and rotating block 24 respectively.

[0031] The sidewall of the fixed base 1 is provided with a chamfer, and the bottom end of the fixed base 1 is fixedly provided with a fixed cushion layer, and a damper is fixedly installed in the fixed cushion layer, which can reduce the vibration effect during drilling, so as to reduce the vibration of the device during drilling, thereby facilitating the drilling process.

[0032] The fixed plate 13 is fixedly provided with a pressure sensor, and the driver 8 is fixedly provided with an alarm corresponding to the pressure sensor, both of which are existing devices, when the limiting device abuts against the inner wall of the tunnel, the pressure sensed by the pressure sensor increases, thereby controlling the alarm to alarm and prompting the worker to complete the drilling; the fixed housing 6 is provided with an opening penetrating through the fixed housing 6, and the fixed drill rod 9 penetrates through the opening and extends to the outside of the fixed housing 6.

[0033] A method for controlling the external insertion angle of a peripheral hole in tunnel blasting, comprising the following steps:

[0034] S1, move the device to the position of drilling the peripheral hole in the tunnel, adjust the angle of the fixed drill rod 9, rotate the rotating block 24 to rotate the fixed insertion rod 21, move the fixed insertion rod 21 downward to insert into the ground, fix the fixed base 1, at this time the fixed spring 23 is contracted, then rotate the adjusting screw block 5, under the action of the thread, the fixed screw rod 4 will move up and down with the rotation of the adjusting screw block 5, adjust the position of the driver 8 and the fixed drill rod 9, so that the position of the fixed drill rod 9 corresponds to the position of the peripheral hole drilling;

[0035] S2, rotate the limiting tube 11 to adjust the length of the limiting tube 11, thereby limiting the length of the drilling of the fixed drill rod 9, to avoid the length of the peripheral hole drilling being too deep, then start the driver 8, the output end of the driver 8 drives the fixed drill rod 9 to rotate and drill, as the drilling proceeds, the limiting tube 11 and the abutting block 12 approach the inner wall of the tunnel, finally the abutting block 12 abuts against the inner wall of the tunnel, at this time the connecting groove 73 on the fixed block 71 and the connecting block 72 will rotate to ensure that the abutting block 12 can abut against the tunnel surface, to avoid the limiting error, at this time the drilling cannot continue, and the pressure sensor senses the increased pressure to make the alarm alarm;

[0036] S3, after drilling is completed, reverse rotation rotating block 24, make fixed plug rod 21 upwardly moving, in the thread of fixed plug rod 21 and thread ring 22 separate, fixed spring 23 elastic force will be fixed plug rod 21 bounce, so that more conveniently fixed base 1 and ground is separated, then adjust structure 7 is adjusted back to the original position, the next place can be carried out the drilling of peripheral eye.

[0037] In the application, first, the device is moved to the position of the peripheral eye drilling in the tunnel, the angle of the fixed drill rod 9 is adjusted, the rotating block 24 is rotated to make the fixed plug rod 21 rotate, the fixed plug rod 21 is inserted into the ground, the fixed base 1 is fixed, the fixed spring 23 is contracted at this time, then the adjusting screw block 5 is rotated, under the action of the thread, the fixed screw rod 4 moves up and down with the rotation of the adjusting screw block 5, the position of the driver 8 and the fixed drill rod 9 is adjusted, the position of the fixed drill rod 9 corresponds to the position of the peripheral eye drilling, then the limiting tube 11 is rotated to adjust the length of the limiting tube 11, so as to limit the length of the fixed drill rod 9 drilling, avoid the length of the peripheral eye drilling being too deep, then the driver 8 is started, the output end of the driver 8 drives the fixed drill rod 9 to rotate and drill, with the drilling, the limiting tube 11 and the abutting block 12 approach the inner wall of the tunnel, finally the abutting block 12 is attached to the inner wall of the tunnel, at this time, the connecting groove 73 on the fixed block 71 and the connecting block 72 rotates to ensure that the abutting block 12 can be attached to the tunnel surface, avoid the error of limiting, at this time, the drilling cannot continue, at the same time, the pressure sensor senses the increase of the pressure, the alarm is alarmed, after the drilling is completed, the rotating block 24 is reversely rotated, the fixed plug rod 21 is moved upward, when the thread of the fixed plug rod 21 and the thread ring 22 are separated, the elastic force of the fixed spring 23 makes the fixed plug rod 21 bounce, so that the fixed base 1 and the ground can be more conveniently separated, finally, the adjusting structure 7 is adjusted back to the original position, the next place can be drilled.

Claims

1. An apparatus for controlling the external insertion angle of peripheral holes for tunnel blasting, characterized in that, Include: The fixed base (1), the fixed base (1) is slidably connected with the fixed screw rod (4), the fixed screw rod (4) is fixedly installed with the fixed shell (6), the inside of the fixed shell (6) is fixedly installed with the driver (8), the output end of the driver (8) is fixedly connected with the fixed drill rod (9); The limiting structure includes the threaded pipe (10) sleeved on the outer side of the fixed drill rod (9), the side wall of the threaded pipe (10) is fixedly connected with the fixed block (14), the fixed block (14) is fixedly connected with the fixed plate (13), and the fixed plate (13) is fixedly connected with the side wall of the fixed shell (6), the inner wall of the threaded pipe (10) is threadedly connected with the limiting pipe (11), the limiting pipe (11) is fixedly connected with the abutting block (12) through the adjusting structure (7), and the limiting pipe (11) and the abutting block (12) are both sleeved on the outer side of the fixed drill rod (9).

2. A device for controlling the external insertion angle of peripheral holes for tunnel blasting according to claim 1, characterized in that, The adjusting structure (7) includes a fixed block (71) and a connecting block (72), the side wall of the fixed block (71) is fixedly connected with the abutting block (12), the side wall of the connecting block (72) is fixedly connected with the limiting pipe (11), and the fixed block (71) and the connecting block (72) are both provided with a connecting groove (73) penetrating through them, the inner walls of the connecting grooves (73) are both rotatably connected with connecting shafts (74), the connecting shafts (74) are both fixedly sleeved with connecting sleeve rods (75), and the corresponding connecting sleeve rods (75) are fixedly connected with an installation rod (76), the corresponding connecting grooves (73) are perpendicular to each other, and the fixed block (71), the connecting block (72), the connecting shaft (74) and the connecting sleeve rod (75) are all made of alloy.

3. A device for controlling the external insertion angle of peripheral holes for tunnel blasting according to claim 1, characterized in that, The fixed rod (3) is rotatably connected with the adjusting screw block (5), and the adjusting screw block (5) is threadedly sleeved on the outer side of the fixed screw rod (4).

4. A device for controlling the external insertion angle of peripheral holes for tunnel blasting according to claim 1, characterized in that, The fixed base (1) is provided with a fixed structure (2), the fixed structure (2) comprises a threaded ring (22) fixedly connected to the fixed base (1), the inner side of the threaded ring (22) is threadedly connected with a fixed insertion rod (21), and the fixed insertion rod (21) penetrates through the fixed base (1) and extends below the fixed base (1), the top end of the fixed insertion rod (21) is fixedly connected with a rotating block (24), the outer side of the fixed insertion rod (21) is sleeved with a fixed spring (23), and the two ends of the fixed spring (23) are rotatably connected with the corresponding threaded ring (22) and rotating block (24).

5. A device for controlling the external insertion angle of peripheral holes for tunnel blasting according to claim 4, characterized in that, The side wall of the fixed base (1) is provided with a chamfer, the bottom end of the fixed base (1) is fixedly installed with a fixed cushion layer, and the fixed cushion layer is fixedly installed with a damper.

6. A device for controlling the external insertion angle of peripheral holes for tunnel blasting according to claim 1, characterized in that, The fixed plate (13) is fixedly installed with a pressure sensor, and the driver (8) is fixedly installed with an alarm corresponding to the pressure sensor.

7. A device for controlling the external insertion angle of peripheral holes for tunnel blasting according to claim 1, characterized in that, The fixed shell (6) is provided with an opening penetrating through it, and the fixed drill rod (9) penetrates through the opening and extends to the outer side of the fixed shell (6).

8. A method for controlling the external insertion angle of peripheral holes for tunnel blasting, characterized in that, The method comprises the following steps: S1, the device is moved to the position of the peripheral eye drilling hole in the tunnel, the angle of the fixed drill rod (9) is adjusted, the rotating block (24) is rotated to rotate the fixed insertion rod (21), the fixed insertion rod (21) is inserted into the ground, the fixed base (1) is fixed, the fixed spring (23) is contracted at this time, then the adjusting screw block (5) is rotated, under the action of the screw thread, the fixed screw rod (4) will move up and down with the rotation of the adjusting screw block (5), the position of the driver (8) and the fixed drill rod (9) is adjusted, the position of the fixed drill rod (9) corresponds to the position of the peripheral eye drilling hole; S2, rotate the limiting tube (11) to adjust the length of the limiting tube (11), thereby limiting the length of the fixed drill rod (9) drilling hole, avoiding the length of the peripheral eye drilling hole being too deep, then start the driver (8), the output end of the driver (8) drives the fixed drill rod (9) to rotate and drill, as the drilling proceeds, the limiting tube (11) and the abutting block (12) approach the inner wall of the tunnel, finally the abutting block (12) is attached to the inner wall of the tunnel, at this time the connecting groove (73) on the fixed block (71) and the connecting block (72) will rotate to ensure that the abutting block (12) can be attached to the tunnel surface, avoiding the error of limiting, at this time the drilling cannot continue, at the same time the pressure sensor senses the increase of pressure, the alarm is alarmed; S3, after drilling is completed, the rotating block (24) is reversely rotated, the fixed insertion rod (21) is moved upward, when the screw thread of the fixed insertion rod (21) is separated from the screw thread ring (22), the elastic force of the fixed spring (23) will make the fixed insertion rod (21) pop up, thereby the fixed base (1) can be more conveniently separated from the ground, then the adjusting structure (7) is adjusted back to the original position, the drilling of the next peripheral eye can be carried out.

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