Blasting excavation drilling device
By installing hollow drill rods and electric push rods on the drilling device, drilling and charging are integrated, solving the problem of the existing device requiring two types of equipment to be used alternately, and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-03-27
AI Technical Summary
Existing blasting excavation drilling equipment can only drill holes and cannot load explosives. Specialized loading equipment is required. In narrow tunnels, the two types of equipment must be strictly alternated, which leads to extended operation cycles and low efficiency.
Design a blasting excavation drilling device with a hollow drill rod. After drilling is completed, an explosive charge is placed into the internal groove of the hollow drill rod, and an electric push rod is used to push the explosive charge into the borehole, so as to achieve precise placement of the explosive and integrate drilling and loading functions.
It simplifies the explosive installation process, improves the working efficiency of blasting excavation and drilling equipment, avoids frequent equipment entry and exit from narrow tunnels, and shortens the operation cycle.
Smart Images
Figure CN224049093U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of blasting and opening, and particularly relates to a blasting and excavating drilling device. BACKGROUND
[0002] When constructing these complex projects deeply buried in the ground, the drilling and blasting method is still the most mainstream and core construction technology in the rock excavation process.
[0003] At present, the drilling device widely used in rock blasting and excavation operation is usually designed with a single function, mainly focusing on drilling the required blast hole in the target rock mass. However, after the drilling process is completed, these devices do not have the ability to directly fill explosives into the blast hole, so the construction party must call on a specially designed charging device to perform the subsequent explosive filling task. In order to complete the entire drilling and blasting cycle, these two types of devices with different functions must be strictly withdrawn and entered in sequence from the relatively narrow underground engineering tunnel, which involves the movement, positioning, and avoidance of the devices, consuming a large amount of non-productive auxiliary operation time and engineering organization and coordination effort, directly leading to the lengthening of the entire drilling and blasting cycle and reducing the overall construction efficiency.
[0004] Therefore, in view of the above-mentioned problems of the existing blasting and excavation drilling device that can only drill holes, cannot charge explosives, and needs to be equipped with a special charging device, and in a narrow tunnel, two types of devices must be strictly rotated in and out, resulting in a prolonged operation cycle and low efficiency, a blasting and excavation drilling device with a hollow drill rod can be designed. SUMMARY
[0005] In order to overcome the problems of the existing blasting and excavation drilling device that can only drill holes, cannot charge explosives, and needs to be equipped with a special charging device, and in a narrow tunnel, two types of devices must be strictly rotated in and out, resulting in a prolonged operation cycle and low efficiency.
[0006] The technical scheme of the utility model is as follows: a blasting and excavation drilling device, comprising a flat car; further comprising a hollow drill rod and a first electric push rod, the flat car is provided with the hollow drill rod above, the hollow drill rod is provided with a drill bit on the front side through screw thread connection, a storage groove is formed in the hollow drill rod, a movable door is rotatably connected in the storage groove, the first electric push rod is installed in the hollow drill rod, an explosive package is arranged in the hollow drill rod, the explosive package is arranged on the front side of the output end of the first electric push rod, the first electric push rod is used for driving the explosive package to move, a fixed plate is arranged on the flat car, and the hollow drill rod is rotatably connected in the fixed plate.
[0007] Preferably, the high-speed rotation of the drill bit threaded with the hollow drill rod is driven by the hollow drill rod to realize the drilling of the rock formation, and after the drilling is completed, the drill bit is removed, the explosive package is placed into the hollow drill rod through the movable groove after the movable door is opened, and the explosive package is pushed into the drilled hole by the output end of the first electric push rod, so that the explosive package is accurately placed.
[0008] Preferably, the rear side of the fixed plate is provided with a first motor, and the output end of the first motor is fixedly connected with the hollow drill rod.
[0009] Preferably, the top of the flat car is fixedly connected with an explosive storage box, and the top of the flat car is fixedly connected with a lifting column arranged on one side of the explosive storage box.
[0010] Preferably, a first threaded rod is rotatably connected in the lifting groove, a screw hole matched with the first threaded rod is formed in the lifting platform, a second motor is installed at the top of the lifting column, the output end of the second motor is fixedly connected with the first threaded rod, and the second motor is used for driving the first threaded rod to rotate.
[0011] Preferably, a moving block is movably connected on one side of the lifting platform, a second electric push rod is installed on the moving block, the output end of the second electric push rod is fixedly connected with the fixed plate, and the second electric push rod is used for driving the hollow drill rod to move.
[0012] Preferably, a second threaded rod is rotatably connected in the lifting platform, a limiting column is fixedly connected on one side of the lifting platform, a screw hole matched with the second threaded rod is formed in the moving block, the moving block is sleeved outside the limiting column, and a limiting ring is fixedly connected on the side of the threaded rod away from the moving block.
[0013] Preferably, a third motor is installed on the lifting platform, the output end of the third motor is fixedly connected with the second threaded rod, and the third motor is used for driving the second threaded rod to rotate.
[0014] The utility model discloses the beneficial effect:
[0015] By installing the hollow drill rod on the blasting and excavation drilling device, after drilling is completed, the explosive package is placed into the hollow drill rod through the movable groove, and the output end of the first electric push rod is elongated, so that the explosive package in the hollow drill rod is pushed into the hole slot drilled by the drill bit. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The three-dimensional structure schematic diagram of the blasting and excavation drilling device is shown.
[0017] Figure 2 The first three-dimensional structure schematic diagram of the drill rod and the drill bit is shown.
[0018] Figure 3 The second three-dimensional structure schematic diagram of the drill rod and the drill bit is shown.
[0019] Figure 4 The three-dimensional structure schematic diagram of the connecting structure of the moving block and the drill bit is shown.
[0020] Figure 5 The three-dimensional structure schematic diagram of the lifting platform and the second threaded rod is shown.
[0021] The specific embodiments of the present application are described below. DETAILED DESCRIPTION
[0022] The present application is further described below in conjunction with the drawings and embodiments.
[0023] Please refer to Figures 1-5 The present application provides an embodiment: a blasting and drilling device, comprising a flat car 1; further comprising a hollow drill rod 2 and a first electric push rod 3, the flat car 1 is provided with the hollow drill rod 2 above, the hollow drill rod 2 is threadedly connected with a drill bit 4 at the front side, the hollow drill rod 2 is provided with a storage groove 5, the storage groove 5 is rotatably connected with a movable door 6, the hollow drill rod 2 is provided with the first electric push rod 3, the hollow drill rod 2 is provided with an explosive package 7, the explosive package 7 is arranged at the front side of the output end of the first electric push rod 3, the first electric push rod 3 is used for driving the explosive package 7 to move, the flat car 1 is provided with a fixed plate 8, the hollow drill rod 2 is rotatably connected in the fixed plate 8, the drill bit 4 threadedly connected with the hollow drill rod 2 is driven to rotate at high speed, the hole processing of the rock stratum is realized, after the hole processing is completed, the drill bit 4 is removed, the movable door 6 is opened, the explosive package 7 is put into the hollow drill rod 2 from the storage groove 5, the first electric push rod 3 is extended to the output end, the explosive package 7 in the hollow drill rod 2 is pushed into the drill hole, the accurate placement of the explosive package 7 is realized, the fixed plate 8 is provided with a first motor 9 at the rear side, the output end of the first motor 9 is fixedly connected with the hollow drill rod 2, the first motor 9 is used for driving the hollow drill rod 2 to rotate, the first motor 9 can provide power for the high-speed rotation of the drill bit 4, the rotation of the drill bit 4 and the application of sufficient pressure are used to penetrate and remove the rock mass, and the hole processing effect is achieved.
[0024] Please refer toFigure 1 、 Figure 4 and Figure 5 In this embodiment, the flatbed truck 1 is fixedly connected with an explosive storage box 10 at the top end, and a lifting column 11 is fixedly connected with the explosive storage box 10 at one side. A lifting groove is formed on the surface of the lifting column 11, and a lifting platform 12 is movably connected in the lifting groove. The lifting platform 12 is arranged behind the fixed plate 8, and the explosive storage box 10 can be used to store explosive packages 7. When drilling and blasting is performed, explosive needs to be installed in multiple drill holes. The design of the explosive storage box 10 can avoid repeated entry and exit of the blasting and excavation drilling device, thereby improving work efficiency. The lifting platform 12 can move in the lifting groove to change the height position of the drill rod. A first threaded rod 13 is rotatably connected in the lifting groove, and a screw hole matched with the first threaded rod 13 is formed on the lifting platform 12. A second motor 14 is installed at the top end of the lifting column 11, and the output end of the second motor 14 is fixedly connected with the first threaded rod 13. The second motor 14 is used to drive the first threaded rod 13 to rotate. Under the limitation of the lifting groove, the lifting platform 12 screwed on the outside of the first threaded rod 13 cannot rotate with the first threaded rod 13, but moves up and down along the lifting groove. A moving block 15 is movably connected at one side of the lifting platform 12, and a second electric push rod 16 is installed on the moving block 15. The output end of the second electric push rod 16 is fixedly connected with the fixed plate 8. The second electric push rod 16 is used to drive the hollow drill rod 2 to move. The second electric push rod 16 pushes the hollow drill rod 2 to drive the drill bit 4 to move along the rock mass direction, thereby changing the depth of the drill hole. A second threaded rod 17 is rotatably connected in the lifting platform 12, and a limiting column 18 is fixedly connected at one side of the lifting platform 12. A screw hole matched with the second threaded rod 17 is formed on the moving block 15, and the moving block 15 is sleeved on the outside of the limiting column 18. A limiting ring 19 is fixedly connected at the side of the second threaded rod 17 away from the moving block 15. After the second threaded rod 17 rotates, under the limitation of the limiting column 18, the moving block 15 screwed on the outside of the second threaded rod 17 cannot rotate with the second threaded rod 17, but moves left and right along the limiting column 18 to drive the hollow drill rod 2. The limiting ring 19 can avoid the moving block 15 from being completely separated from the second threaded rod 17. A third motor 20 is installed on the lifting platform 12, and the output end of the third motor 20 is fixedly connected with the second threaded rod 17. The third motor 20 is used to drive the second threaded rod 17 to rotate, thereby providing power for the left and right movement of the hollow drill rod 2.
[0025] In the drilling work, first, the worker installs the drill bit 4 on the drill rod, and then starts the No. 2 motor 14 according to the calculated position, the No. 2 motor 14 drives the No. 1 threaded rod 13 to rotate the rod, under the limitation of the lifting groove, the lifting platform 12 screwed outside the No. 1 threaded rod 13 cannot rotate with the No. 1 threaded rod 13, but moves up and down along the lifting groove, so as to change the height of the drill bit 4, start the No. 3 motor 20, the No. 3 motor 20 drives the No. 2 threaded rod 17 to rotate, under the limitation of the limiting column 18, the moving block 15 screwed outside the No. 2 threaded rod 17 cannot rotate with the No. 2 threaded rod 17, but drives the drill bit 4 to move left and right along the limiting column 18, find the fixed position, start the No. 1 motor 9, the No. 1 motor 9 drives the drill bit 4 to rotate at high speed, at the same time, the No. 2 electric push rod 16 pushes the fixed plate 8 to drive the drill bit 4 to move towards the rock mass, and the drilling work begins, after one hole is drilled, the height and transverse position of the drill bit 4 are changed to change the position of the next drilling hole, until all the holes are drilled, the blasting and excavation drilling device records the movement path of the hollow drill rod 2 through the built-in PLC control system;
[0026] The worker removes the drill bit 4 from the hollow drill rod 2, then takes out the explosive package 7 from the explosive storage box 10, opens the movable door 6, puts the explosive package 7 into the hollow drill rod 2 through the placing groove 5, then closes the movable door 6, controls the drill rod to move to the position aligned with the drilling hole through the PLC control system, the No. 2 electric push rod 16 inserts the hollow drill rod 2 into the drilling hole, and the No. 1 electric push rod 3 pushes the explosive package 7 in the hollow drill rod 2 into the drilling hole, realizing the filling and installation of the explosive.
[0027] Through the above steps, the hollow drill rod 2 is installed on the blasting and excavation drilling device, after the drilling is completed, the explosive package 7 is put into the hollow drill rod 2 through the placing groove 5, and the No. 1 electric push rod 3 extends the output end to push the explosive package 7 in the hollow drill rod 2 along the hollow drill rod 2 into the hole drilled by the drill bit 4, which can simplify the steps of installing the explosive package 7 and improve the working efficiency of the entire blasting and excavation drilling device, to solve the problem that the existing blasting and excavation drilling device can only drill holes, cannot load explosives, and needs to be equipped with special explosive loading equipment, in a narrow tunnel, the two types of equipment must be strictly rotated in and out, resulting in prolonged operation period and low efficiency.
Claims
1. A blasting excavation drilling apparatus comprising a flatbed truck (1); characterized in that: Also include a hollow drill pipe (2) and a first electric push rod (3), the flat car (1) top is provided with hollow drill pipe (2), hollow drill pipe (2) front side is connected with drill bit (4) by screw thread, hollow drill pipe (2) is provided with the article groove (5), the article groove (5) is rotatably connected with the movable door (6), hollow drill pipe (2) is installed with a first electric push rod (3), hollow drill pipe (2) is provided with explosive package (7), explosive package (7) is set in the output end front side of a first electric push rod (3), a first electric push rod (3) is used to drive explosive package (7) to move, flat car (1) is provided with fixed plate (8), and hollow drill pipe (2) is rotatably connected in fixed plate (8).
2. The blast hole drilling apparatus of claim 1, wherein: Fixed plate (8) is installed with a first motor (9) on the rear side, and the output end of the first motor (9) is fixedly connected with the hollow drill pipe (2), and the first motor (9) is used to drive the hollow drill pipe (2) to rotate.
3. The blast hole drilling apparatus of claim 1, wherein: The top of the flat car (1) is fixedly connected with the explosive storage box (10), and the top of the flat car (1) is fixedly connected with the lifting column (11) arranged on one side of the explosive storage box (10), and the lifting column (11) is provided with a lifting groove on the surface, and the lifting groove is movably connected with the lifting platform (12), and the lifting platform (12) is arranged behind the fixed plate (8).
4. The blast hole drilling apparatus of claim 3, wherein: A first threaded rod (13) is rotatably connected in the lifting groove, and a screw hole matched with the first threaded rod (13) is formed in the lifting platform (12), and a second motor (14) is installed on the top of the lifting column (11), and the output end of the second motor (14) is fixedly connected with the first threaded rod (13), and the second motor (14) is used to drive the first threaded rod (13) to rotate.
5. The borehole blasting arrangement of claim 4, wherein: A moving block (15) is movably connected on one side of the lifting platform (12), and a second electric push rod (16) is installed on the moving block (15), and the output end of the second electric push rod (16) is fixedly connected with the fixed plate (8), and the second electric push rod (16) is used to drive the hollow drill pipe (2) to move.
6. The borehole blasting arrangement of claim 5, wherein: A second threaded rod (17) is rotatably connected in the lifting platform (12), and a limiting column (18) is fixedly connected on one side of the lifting platform (12), and a screw hole matched with the second threaded rod (17) is formed in the moving block (15), and the moving block (15) is sleeved on the outside of the limiting column (18), and a limiting ring (19) is fixedly connected on the side of the threaded rod away from the moving block (15).
7. The blast hole drilling apparatus of claim 6, wherein: A third motor (20) is installed on the lifting platform (12), and the output end of the third motor (20) is fixedly connected with the second threaded rod (17), and the third motor (20) is used to drive the second threaded rod (17) to rotate.