Drilling positioning device for fault zone drilling and blasting method

Abstract

The invention belongs to the technical field of drilling and positioning, and particularly relates to a drilling and positioning device for a fault zone drilling and blasting method, which comprises a worktable, four conical rods are mounted on the periphery of the lower end surface of the worktable, the worktable can be fixed at a proper drilling position through the four conical rods, a positioning ring pipe is mounted above the worktable, and a positioning hole is formed in the positioning ring pipe. A drill rod is arranged in the positioning ring pipe, a drilling thread is arranged on the outer surface of the drill rod, the conical rod is hammered into a proper position through an external hammer, then the driving mechanism is controlled to drive the drill rod to rotate and move downwards at the same time, and drilling treatment is conducted on a fault broken area. According to the technical scheme, the moving position of the drill rod can be maintained, it is ensured that the drill rod is located on the same axis in the drilling process, under the mutual cooperation of the drilling thread and the cleaning thread groove, the position of the drill rod can be further limited, and the problem that due to the fact that a fault broken area is unstable, a drill hole of the drill rod deflects is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling positioning, in particular to a drilling positioning device used in a fault zone drilling and blasting method. Background Art

[0002] Fault zone drilling and blasting is a construction technique for tunneling or underground engineering in fault fracture zones. This method uses drilling and blasting to loosen and break rocks to achieve the purpose of excavation. Specifically, the drilling method includes the following steps: using drilling equipment to drill holes of a certain depth and diameter in the rock; loading explosives into the drilled holes; and after loading, plugging the blast holes to ensure the blasting effect.

[0003] The prior art also proposes a solution for blasting drilling positioning. For example, a patent application with publication number CN114705092A discloses a method for continuous hole arrangement by unified positioning of geodetic coordinates for blasting drilling holes in open-pit mine steps. The drilling holes are uniformly positioned by geodetic coordinates, and each flat plate is uniformly and continuously arranged according to the coordinates across the mining belt and across time and space according to the lithology. By overcoming blasting foundation, umbrella rock, hard wall, rock wall, rock pillar, etc., the large block rate is reduced, the coal over-crushing rate and the unit consumption of explosives are reduced, and the efficiency and economic benefits of open-pit mining and transportation equipment are improved.

[0004] Although the above technical solution reduces the coal over-crushing rate and the unit consumption of explosives, there are still other problems in its specific use. For example, during the drilling process of the drill rod, since drilling is carried out in the fault zone area, the rock mass is mostly a fragmented structure, which makes it more difficult to locate it. In addition, there are many fault muds, fault breccias, and fragmented rocks in the rock mass. As a result, after drilling is completed, too many solid impurities often adhere to the surface of the drill rod, affecting subsequent drilling.

[0005] To this end, the present invention provides a drilling positioning device for fault zone drilling and blasting method. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a drilling positioning device for fault zone drilling and blasting method described in the present invention comprises a workbench, four tapered rods are installed around the lower end surface of the workbench, and the workbench can be fixed at a suitable drilling position by the four tapered rods, a positioning ring tube is installed above the workbench, a drill rod is arranged inside the positioning ring tube, a drilling thread is arranged on the outer surface of the drill rod, a cleaning thread groove is opened on the inner wall of the positioning ring tube, the cleaning thread groove and the drilling thread are matched in shape, and the solid impurities adhered to the surface of the drill rod can be processed under the mutual cooperation of the cleaning thread groove and the drilling thread, and a driving mechanism is arranged above the workbench, and the driving mechanism is used to drive the drill rod to move and rotate.

[0008] Preferably, the driving mechanism includes a motor 1 fixedly mounted above the workbench, a screw being rotatably mounted on the output end of the motor 1, a moving block being threadedly arranged on the outer circumferential surface of the screw, a connecting bracket being mounted on the side wall of the moving block, a motor 2 being fixedly mounted on the end of the connecting bracket away from the screw, and the drill rod being connected to the output end of the motor 2; during operation, after the workbench is fixed and drilling is required, the motor 1 is controlled to rotate, the motor 1 drives the screw to rotate, the screw will drive the moving block meshing with it to move downward, the moving block drives the connecting bracket and the motor 2 to move downward, and at the same time, the motor 2 is driven to drive the drill rod to rotate, so that the drill rod moves downward along the positioning ring tube, and then the drilling end of the drill rod will drill the fault fracture zone, the operation is relatively convenient, and the stability of the drill rod during drilling is ensured.

[0009] Preferably, a limiting support plate is installed on the upper end surface of the workbench, and a limiting column is installed on the side wall of the moving block. The limiting column is slidably arranged on the side wall of the limiting support plate away from the end of the moving block, and the side wall of the limiting support plate is provided with a limiting groove adapted to the limiting column. During operation, when the moving block moves up and down following the screw rod, the moving block will simultaneously drive the limiting column to move up and down, and the limiting column will move up and down on the side wall of the limiting support plate. Under the limitation of the limiting support plate on the limiting column, it can further play a certain limiting role on the motor 2 and the drill rod, thereby facilitating the subsequent drilling of the hole.

[0010] Preferably, a connecting gear is installed at the bottom of the screw, and a connecting gear ring is arranged above the workbench. The connecting gear is meshed and connected with the connecting gear ring through a transmission gear. A water outlet pipe is installed on the inner wall of the connecting gear ring. A water outlet pump is arranged inside the water outlet pipe, and the water outlet end of the water outlet pipe faces the drilling direction of the drill rod.

[0011] Preferably, a limiting ring frame is installed on the lower end face of the connecting gear ring, the bottom of the limiting ring frame is rotatably arranged on the upper end face of the workbench, and the upper end face of the workbench is provided with a groove adapted to the limiting ring frame; during operation, when the connecting gear ring rotates, the connecting gear ring will simultaneously drive the limiting ring frame to rotate on the upper end face of the workbench, and under the limitation of the limiting ring frame by the groove on the surface of the workbench, the connecting gear ring can be conveniently rotated along the outer circumferential surface of the drill rod and absorb the generated dust.

[0012] Preferably, an atomizing water spray head is installed at the water outlet end of the water outlet pipe, a cavity is opened inside the connecting gear ring, a water source for dust removal is stored inside the cavity, and the end of the water outlet pipe passes through the cavity of the connecting gear ring. When working, an atomizing water spray head is provided, which can make the water generated by the water outlet pipe spray out in an atomized form. The atomized water can be easily combined with the dust, thereby maximizing the dust treatment and facilitating the normal operation of the staff.

[0013] Preferably, a cylindrical groove is provided inside each of the conical rods, a spherical groove is provided at the bottom of the cylindrical groove, a monitoring unit is provided inside the spherical groove, and the monitoring unit is used to monitor the verticality of drilling of the drill rod.

[0014] Preferably, the monitoring unit includes a gravity ball arranged inside the spherical groove, the shape of the gravity ball is adapted to the shape of the spherical groove, the groove wall of the spherical groove is installed with contact one and contact two, and the contact one is arranged on the side away from contact two; during operation, since the conical rod is installed vertically when the workbench is installed, the gravity ball will be completely placed inside the spherical groove and will not contact contact one and contact two. When the drill rod is in the drilling process, due to the characteristics of the fault zone itself, the drill rod deviates from the drilling trajectory. At this time, the entire workbench will be skewed. When the deflection reaches a certain degree, that is, when the gravity ball deviates from the inside of the spherical groove, the gravity ball will break away from the spherical groove and move to one side of contact one and contact two. When the gravity ball contacts one of the contacts, the external controller will be energized, and the external controller will control the alarm to sound an alarm to remind the staff to come and deal with it, so that the drilling verticality of the drill rod can be monitored in time.

[0015] Preferably, the first contact is connected to the first external warning light via a power line, and the second contact is connected to the second external warning light via a power line.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The drilling positioning device for fault zone drilling and blasting method described in the present invention can drive the water outlet pipe on its inner wall to rotate through the connecting gear ring. During the rotation of the water outlet pipe, the water pump inside it runs at the same time. Therefore, during the rotation of the connecting gear ring, the water outlet pipe on its inner wall can simultaneously discharge water and spray it in the direction of the drilling hole. Such a design can not only reduce the dust generated during the drilling process and avoid the problem of workers inhaling too much dust and affecting their own health, but also part of the water will flow into the hole, and the water will mix the debris in the hole, which is convenient for subsequent centralized cleaning of the hole, ensuring the subsequent placement of explosives and blasting effect.

[0018] 2. In the drilling positioning device for fault zone drilling and blasting method described in the present invention, when the drill rod is in the drilling process, the two will be deflected:

[0019] First: When the drill rod deflection angle is small, that is, the whole device deflects a little, that is, when the gravity ball breaks away from the inside of the spherical groove and contacts the contact point, the external warning light will light up, which means that the drill rod deflection angle is small, and the staff only needs to readjust the drill rod position, or adjust the penetration length of one of the tapered rods;

[0020] Second: when the drill rod deflection angle is large, that is, when the entire device is deflected greatly, that is, when the gravity ball detaches from the inside of the spherical groove, passes through contact one, and contacts contact two, the external warning light two lights up, which means that the drill rod deflection angle is large, indicating that the fault here is large and it is not suitable to drill a hole here. At this time, the staff should take out the entire workbench and the tapered rod, and select the most suitable drilling point in time. The operation is convenient and quick, and the drilling method can be adaptively adjusted according to the deflection angle of the drill rod, which brings convenience to the subsequent tunnel excavation. In this way, the drill rod is avoided from being constantly deflected, and serious friction with the hole occurs during its rotation, resulting in excessive wear of the drill rod and fatigue fracture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the moving block part in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the screw part in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the drill rod part in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the connecting gear part in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the water outlet pipe part in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the tapered rod part in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the cylindrical groove part in the present invention.

[0030] In the figure: 1. workbench; 2. tapered rod; 3. positioning ring tube; 301. drill rod; 302. cleaning thread groove; 4. drilling thread; 5. motor one; 501. screw rod; 6. moving block; 7. connecting bracket; 8. motor two; 9. limiting support plate; 10. limiting column; 11. connecting gear; 12. connecting gear ring; 13. water outlet pipe; 14. limiting ring frame; 15. atomizing water spray head; 16. cylindrical groove; 17. spherical groove; 18. gravity ball; 19. contact one; 20. contact two; 21. stopper. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 4 As shown, a drilling positioning device for a fault zone drilling and blasting method according to an embodiment of the present invention comprises a workbench 1, four tapered rods 2 are installed around the lower end surface of the workbench 1, and the workbench 1 can be fixed at a suitable drilling position by the four tapered rods 2, a positioning ring tube 3 is installed above the workbench 1, a drill rod 301 is arranged inside the positioning ring tube 3, a drilling thread 4 is arranged on the outer surface of the drill rod 301, a cleaning thread groove 302 is opened on the inner wall of the positioning ring tube 3, the cleaning thread groove 302 and the drilling thread 4 are matched in shape, and the cleaning thread groove 302 and the drilling thread 4 cooperate with each other to process solid impurities adhered to the surface of the drill rod 301, and a driving mechanism is arranged above the workbench 1, and the driving mechanism is used to drive the drill rod 301 to move and rotate;

[0033] The fault zone drilling and blasting method is a construction technology for excavating tunnels or underground projects in fault fracture areas. When drilling is required, the staff will place the workbench 1 of the device at a suitable position and fix the workbench 1 through four tapered rods 2. It should be noted that the tapered rod 2 is a retractable rod, and the outer wall is provided with a knocking point. The staff can hammer the tapered rod 2 into a suitable position with an external hammer, and then control the driving mechanism to drive the drill rod 301 to move downward while rotating to drill the fault fracture area. During the drilling process, the positioning ring tube 3 is provided to maintain the moving position of the drill rod 301 to ensure that it is on the same axis during the drilling process. Moreover, with the cooperation of the drilling thread 4 and the cleaning thread groove 302, the position of the drill rod 301 can be further limited to avoid the problem of drilling deviation of the drill rod 301 due to the instability of the fault fracture area.

[0034] Moreover, after a drilling operation is completed, when the drill rod 301 is restored upward, the solid impurities on the surface of the drill rod 301 can be removed under the mutual limitation of the drilling thread 4 and the cleaning thread groove 302, which facilitates the subsequent drilling operation at other positions, reduces the workload of the staff, and is more convenient to operate.

[0035] The driving mechanism includes a motor 1 5 fixedly mounted above the workbench 1, a screw 501 is rotatably mounted on the output end of the motor 1 5, a moving block 6 is threadedly arranged on the outer circumferential surface of the screw 501, a connecting bracket 7 is mounted on the side wall of the moving block 6, a motor 2 8 is fixedly mounted on the end of the connecting bracket 7 away from the screw 501, and the drill rod 301 is connected to the output end of the motor 2 8;

[0036] During operation, after the workbench 1 is fixed and drilling is required, the motor 1 5 is controlled to rotate, and the motor 1 5 drives the screw 501 to rotate. The screw 501 will drive the movable block 6 engaged with it to move downward, and the movable block 6 drives the connecting bracket 7 and the motor 2 8 to move downward. At the same time, the motor 2 8 is driven to drive the drill rod 301 to rotate, so that the drill rod 301 moves downward along the positioning ring tube 3, and then the drilling end of the drill rod 301 will drill the fault fracture zone. The operation is relatively convenient, which ensures the stability of the drill rod 301 during drilling.

[0037] like Figures 2 to 6As shown, a limiting support plate 9 is installed on the upper end surface of the workbench 1, and a limiting column 10 is installed on the side wall of the moving block 6. The limiting column 10 is slidably arranged on the side wall of the limiting support plate 9 away from the end of the moving block 6, and the side wall of the limiting support plate 9 is provided with a limiting groove adapted to the limiting column 10; during operation, when the moving block 6 moves up and down following the screw rod 501, the moving block 6 will simultaneously drive the limiting column 10 to move up and down, and the limiting column 10 will move up and down on the side wall of the limiting support plate 9. Under the limitation of the limiting support plate 9 on the limiting column 10, it can further play a certain limiting role on the motor 2 8 and the drill rod 301, which is convenient for the subsequent drilling of the hole.

[0038] like Figures 3 to 6 As shown, a connecting gear 11 is installed at the bottom of the screw 501, and a connecting gear ring 12 is arranged above the workbench 1. The connecting gear 11 is meshed and connected with the connecting gear ring 12 through a transmission gear. A water outlet pipe 13 is installed on the inner wall of the connecting gear ring 12. A water outlet pump is arranged inside the water outlet pipe 13. The water outlet end of the water outlet pipe 13 faces the drilling direction of the drill rod 301. When working, when the screw 501 rotates, the screw 501 will simultaneously drive the connecting gear 11 to rotate, and the connecting gear 11 will drive the connecting gear ring 12 meshed with it to rotate. The connecting gear ring 12 will drive the water outlet pipe 13 on its inner wall to rotate. During the rotation of the water outlet pipe 13, the water pump inside it will operate at the same time. Therefore, during the rotation of the connecting gear ring 12, the water outlet pipe 13 on its inner wall will simultaneously discharge water and spray it in the direction of the drilling hole. This design can not only reduce the dust generated during the drilling process and prevent the workers from inhaling too much dust and affecting their own health, but also part of the water will flow into the hole, and the water will mix the debris in the hole, which is convenient for the subsequent centralized cleaning of the hole and ensures the subsequent placement of explosives and the blasting effect.

[0039] A limiting ring frame 14 is installed on the lower end surface of the connecting gear ring 12, and the bottom of the limiting ring frame 14 is rotatably set on the upper end surface of the workbench 1, and the upper end surface of the workbench 1 is provided with a groove adapted to the limiting ring frame 14; during operation, when the connecting gear ring 12 rotates, the connecting gear ring 12 will simultaneously drive the limiting ring frame 14 to rotate on the upper end surface of the workbench 1, and under the limitation of the limiting ring frame 14 by the groove on the surface of the workbench 1, the connecting gear ring 12 can be conveniently rotated along the outer peripheral surface of the drill rod 301 and absorb the generated dust.

[0040] An atomizing water spray head 15 is installed at the water outlet end of the water outlet pipe 13. A cavity is opened inside the connecting gear ring 12, and a water source for dust removal is stored inside the cavity. The end of the water outlet pipe 13 passes through the cavity of the connecting gear ring 12. When working, an atomizing water spray head 15 is provided, which can make the water generated by the water outlet pipe 13 spray out in an atomized state. The atomized water can be easily combined with the dust, thereby maximizing the dust treatment and facilitating the normal operation of the staff.

[0041] like Figures 3 to 8 As shown, each of the conical rods 2 is provided with a cylindrical groove 16, a spherical groove 17 is provided at the bottom of the cylindrical groove 16, and a monitoring unit is provided inside the spherical groove 17, and the monitoring unit is used to monitor the verticality of the drill rod 301. During operation, after the conical rod 2 is installed in a suitable position, when the drill rod 301 drills a hole in the fault fracture zone, the verticality of the drill rod 301 can be monitored in real time through the monitoring unit provided inside the conical rod 2. If deflection occurs, an alarm can be issued in time to avoid the drill rod 301 being constantly deflected and having serious friction with the hole during rotation, resulting in the problem of excessive wear and fatigue fracture of the drill rod 301.

[0042] The monitoring unit includes a gravity ball 18 disposed inside the spherical groove 17. The shape of the gravity ball 18 matches the shape of the spherical groove 17. The groove wall of the spherical groove 17 is installed with a contact 19 and a contact 20. The contact 19 is arranged on a side away from the contact 2 20.

[0043] During operation, since the conical rod 2 is installed vertically when the workbench 1 is installed, the gravity ball 18 will be completely placed inside the spherical groove 17 and will not contact the contact 1 19 and the contact 2 20. When the drill rod 301 deviates from the drilling trajectory due to the characteristics of the fault zone itself, the entire workbench 1 will be skewed. When the deflection reaches a certain degree, that is, the gravity ball 18 deviates from the inside of the spherical groove 17, the gravity ball 18 will break away from the spherical groove 17 and move to one side of the contact 1 19 and the contact 2 20. When the gravity ball 18 contacts one of the contacts, the external controller will be energized, and the external controller will control the alarm to sound an alarm to remind the staff to come and deal with it, so that the drilling verticality of the drill rod 301 can be monitored in time.

[0044] The contact 19 is connected to the external warning light 1 through a power line, and the contact 2 20 is connected to the external warning light 2 through a power line. When working, the drill rod 301 may have two deflection situations during the drilling process:

[0045] First: when the drill rod 301 has a small deflection angle, that is, when the entire device has a small deflection, that is, when the gravity ball 18 is separated from the spherical groove 17 and contacts the contact 19, the external warning light 1 lights up, which indicates that the drill rod 301 has a small deflection angle, and the staff only needs to readjust the position of the drill rod 301, or adjust the penetration length of one of the tapered rods 2;

[0046] Second: when the drill rod 301 has a large deflection angle, that is, when the entire device has a large deflection, that is, when the gravity ball 18 breaks away from the inside of the spherical groove 17, passes through contact one 19, and contacts contact two 20, the external warning light 2 lights up, which indicates that the drill rod 301 has a large deflection angle, indicating that the fault here is large and it is not suitable to drill a hole here. At this time, the staff should turn off the power and then take out the entire workbench 1 and the tapered rod 2, and select the most suitable drilling point in time. The operation is convenient and quick, and the drilling method can be adaptively adjusted according to the deflection angle of the drill rod 301, which brings convenience to the subsequent tunnel excavation. In this way, the drill rod 301 is avoided from being constantly deflected and seriously rubbing against the hole during rotation, resulting in excessive wear and fatigue fracture of the drill rod 301.

[0047] It should be noted that as long as one of the warning lights 2 is on, the drilling work should be stopped in time. It should also be noted that contact 19 and contact 2 20 are set inside each conical rod 2, and each contact 19 and contact 2 20 corresponds to a different warning light 1 and warning light 2, so the deflection direction of the workbench 1 can be easily and timely seen, so that the staff can make adjustment measures in time.

[0048] like Figure 8 As shown, the outer circumferences of the contact 1 19 and the contact 2 20 are both installed with blocks 21, and the block 21 is used to block the gravity ball 18; when working, the block 21 is set on the outer circumference of the contact 1 19. When the drill rod 301 is less deflected, when the gravity ball 18 moves to the side of the contact 1 19, under the action of the block 21, it will have a certain blocking effect on the gravity ball 18, preventing the gravity ball 18 from directly crossing the contact 1 19 and contacting the contact 2 20. Only when the deflection angle is too large, the gravity ball 18 will cross the contact 1 19 and the block 21 and contact the contact 2 20. In this way, the state of the drill rod 301 itself can be better monitored, and the operation is more convenient.

[0049] During operation, the fault zone drilling and blasting method is a construction technology for excavating tunnels or underground projects in fault fracture areas. When drilling is required, the staff will place the workbench 1 of the device at a suitable position and fix the workbench 1 through four tapered rods 2. It should be noted that the tapered rod 2 is a retractable rod, and a knocking point is provided on the outer wall. The staff can hammer the tapered rod 2 into a suitable position with an external hammer, and then control the driving mechanism to drive the drill rod 301 to move downward while rotating to drill the fault fracture area. During the drilling process, the positioning ring tube 3 is provided to maintain the moving position of the drill rod 301 to ensure that it is on the same axis during the drilling process, and the position of the drill rod 301 can be further limited under the cooperation of the drilling thread 4 and the cleaning thread groove 302 to avoid the problem of drilling deviation of the drill rod 301 due to the instability of the fault fracture area.

[0050] When the workbench 1 is fixed and needs to be drilled, the motor 1 5 is controlled to rotate, and the motor 1 5 drives the screw 501 to rotate. The screw 501 will drive the moving block 6 engaged with it to move downward, and the moving block 6 drives the connecting bracket 7 and the motor 2 8 to move downward. At the same time, the driving motor 2 8 drives the drill rod 301 to rotate, so that the drill rod 301 moves downward along the positioning ring tube 3, and then the drilling end of the drill rod 301 will drill the fault fracture zone, which is more convenient to operate and ensures the stability of the drill rod 301 during drilling. When the screw 501 rotates, the screw 501 will simultaneously drive the connecting gear 11 to rotate. When the connecting gear 11 is moved, the connecting gear 11 will drive the connecting gear ring 12 meshing with it to rotate, and the connecting gear ring 12 will drive the water outlet pipe 13 on its inner wall to rotate. During the rotation of the water outlet pipe 13, the water pump inside it will operate at the same time. Therefore, during the rotation of the connecting gear ring 12, the water outlet pipe 13 on its inner wall will discharge water at the same time and spray it in the direction of the drilling hole. Such a design can not only reduce the dust generated during the drilling process and avoid the problem of workers inhaling too much dust and affecting their own health, but also part of the water will flow into the hole, and the water will mix the debris in the hole, which is convenient for the subsequent centralized cleaning of the hole, ensuring the subsequent placement of explosives and blasting effect.

[0051] An atomizing water spray head 15 is provided, so that the water generated by the water outlet pipe 13 can be sprayed out in an atomized state. The atomized water can be conveniently combined with dust, thereby maximizing the dust treatment, which is beneficial to the normal operation of the staff; after the tapered rod 2 is installed at a suitable position, when the drill rod 301 drills the fault fracture zone, the verticality of the drill rod 301 can be monitored in real time through the monitoring unit provided inside the tapered rod 2. If deflection occurs, an alarm can be issued in time to avoid the drill rod 301 being constantly deflected and having serious friction with the hole during rotation, resulting in the problem of excessive wear and fatigue fracture of the drill rod 301;

[0052] Since the conical rod 2 is installed vertically when the workbench 1 is installed, the gravity ball 18 will be completely placed inside the spherical groove 17 and will not contact the contact 1 19 and the contact 2 20. When the drill rod 301 deviates from the drilling trajectory due to the characteristics of the fault zone itself during the drilling process, the entire workbench 1 will be deflected. When the deflection reaches a certain degree, that is, the gravity ball 18 deviates from the inside of the spherical groove 17, the gravity ball 18 will break away from the spherical groove 17 and move to one side of the contact 1 19 and the contact 2 20. When the gravity ball 18 contacts one of the contacts, the external controller will be powered on, and the external controller will control the alarm to sound an alarm to remind the staff to come and handle it, so that the drilling verticality of the drill rod 301 can be monitored in time.

[0053] When the drill rod 301 is in the process of drilling, the two deflections may occur:

[0054] First: when the drill rod 301 has a small deflection angle, that is, when the entire device has a small deflection, that is, when the gravity ball 18 is separated from the spherical groove 17 and contacts the contact 19, the external warning light 1 lights up, which indicates that the drill rod 301 has a small deflection angle, and the staff only needs to readjust the position of the drill rod 301, or adjust the penetration length of one of the tapered rods 2;

[0055] Second: when the drill rod 301 has a large deflection angle, that is, when the entire device has a large deflection, that is, when the gravity ball 18 breaks away from the inside of the spherical groove 17, passes through contact one 19, and contacts contact two 20, the external warning light 2 lights up, which indicates that the drill rod 301 has a large deflection angle, indicating that the fault here is large and it is not suitable to drill a hole here. At this time, the staff should turn off the power and then take out the entire workbench 1 and the tapered rod 2, and select the most suitable drilling point in time. The operation is convenient and quick, and the drilling method can be adaptively adjusted according to the deflection angle of the drill rod 301, which brings convenience to the subsequent tunnel excavation. In this way, the drill rod 301 is avoided from being constantly deflected and seriously rubbing against the hole during rotation, resulting in excessive wear and fatigue fracture of the drill rod 301.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A drilling positioning device for fault zone drilling and blasting method, characterized in that: The invention comprises a workbench (1), wherein four tapered rods (2) are installed around the lower end surface of the workbench (1), and the workbench (1) can be fixed at a suitable drilling position by means of the four tapered rods (2); a positioning ring tube (3) is installed above the workbench (1), a drill rod (301) is arranged inside the positioning ring tube (3), a drilling thread (4) is arranged on the outer surface of the drill rod (301), a cleaning thread groove (302) is opened on the inner wall of the positioning ring tube (3), the cleaning thread groove (302) and the drilling thread (4) are matched in shape, and the cleaning thread groove (302) and the drilling thread (4) cooperate with each other to process solid impurities adhered to the surface of the drill rod (301); a driving mechanism is arranged above the workbench (1), and the driving mechanism is used to drive the drill rod (301) to move and rotate.

2. The drilling positioning device for fault zone drilling and blasting method according to claim 1 is characterized by: The driving mechanism comprises a motor 1 (5) fixedly mounted above the workbench (1); a screw rod (501) is rotatably mounted on the output end of the motor 1 (5); a moving block (6) is threadedly arranged on the outer peripheral surface of the screw rod (501); a connecting bracket (7) is mounted on the side wall of the moving block (6); a motor 2 (8) is fixedly mounted on the end of the connecting bracket (7) away from the screw rod (501); and the drill rod (301) is connected to the output end of the motor 2 (8).

3. A drilling positioning device for fault zone drilling and blasting method according to claim 2, characterized in that: A limiting support plate (9) is installed on the upper end surface of the workbench (1), and a limiting column (10) is installed on the side wall of the moving block (6). The limiting column (10) is slidably arranged on the side wall of the limiting support plate (9) away from the end of the moving block (6), and the side wall of the limiting support plate (9) is provided with a limiting groove adapted to the limiting column (10).

4. A drilling positioning device for fault zone drilling and blasting method according to claim 3, characterized in that: A connecting gear (11) is installed at the bottom of the screw rod (501), and a connecting gear ring (12) is arranged above the workbench (1). The connecting gear (11) is meshedly connected with the connecting gear ring (12) through a transmission gear. A water outlet pipe (13) is installed on the inner wall of the connecting gear ring (12), and a water outlet pump is arranged inside the water outlet pipe (13). The water outlet end of the water outlet pipe (13) faces the drilling direction of the drill rod (301).

5. The drilling positioning device for fault zone drilling and blasting method according to claim 4, characterized in that: A limiting ring frame (14) is installed on the lower end surface of the connecting gear ring (12), the bottom of the limiting ring frame (14) is rotatably arranged on the upper end surface of the workbench (1), and the upper end surface of the workbench (1) is provided with a groove matched with the limiting ring frame (14).

6. The drilling positioning device for fault zone drilling and blasting method according to claim 4, characterized in that: An atomizing water spray head (15) is installed at the water outlet end of the water outlet pipe (13), a cavity is provided inside the connecting gear ring (12), a water source for dust removal is stored inside the cavity, and the end of the water outlet pipe (13) passes through the cavity of the connecting gear ring (12).

7. The drilling positioning device for fault zone drilling and blasting method according to claim 4, characterized in that: A cylindrical groove (16) is arranged inside each of the tapered rods (2), a spherical groove (17) is provided at the bottom of the cylindrical groove (16), and a monitoring unit is arranged inside the spherical groove (17), and the monitoring unit is used to monitor the verticality of drilling of the drill rod (301).

8. The drilling positioning device for fault zone drilling and blasting method according to claim 7, characterized in that: The monitoring unit comprises a gravity ball (18) arranged inside a spherical groove (17); the shape of the gravity ball (18) matches the shape of the spherical groove (17); a first contact (19) and a second contact (20) are installed on the groove wall of the spherical groove (17); the first contact (19) is arranged on a side away from the second contact (20).

9. A drilling positioning device for fault zone drilling and blasting method according to claim 8, characterized in that: The contact point 1 (19) is connected to the external warning light 1 through a power line, and the contact point 2 (20) is connected to the external warning light 2 through a power line.

10. A drilling positioning device for fault zone drilling and blasting method according to claim 9, characterized in that: The outer circumferences of the contact point 1 (19) and the contact point 2 (20) are both provided with a stopper (21), and the stopper (21) is used to block the gravity ball (18).

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