Drilling machine for blasthole drilling

Abstract

The utility model discloses a drilling machine for blasthole drilling, and relates to the technical field of drilling machines for blasthole drilling. Guide rods are fixedly connected to three ends of the lower side of the fixed top plate, an upper motor fixing frame is fixedly connected to the middle of the upper side of the fixed top plate, an upper motor is fixedly connected to the upper side of the middle in the upper motor fixing frame, a threaded rod is fixedly connected to the output end of the upper motor, and a threaded rod fixing frame is in threaded connection to the outer side of the threaded rod; connecting rods are fixedly connected to the left and right ends of the lower side of the threaded rod fixing frame, a lower motor fixing frame is fixedly connected to the lower sides of the connecting rods, a lower motor is fixedly connected to the upper side of the middle in the lower motor fixing frame, and a drill bit is fixedly connected to the output end of the lower motor; a control box is fixedly connected to the upper side of the upper motor fixing frame, and a plurality of control keys are arranged on the upper side of the control box; the lower sides of the guide rods are fixedly connected with a fixed bottom plate, and the four ends of the lower side of the fixed bottom plate are fixedly connected with ground fixing pieces.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling rigs for blasting hole drilling, specifically a drilling rig for blasting hole drilling. Background Technology

[0002] Blasting hole drilling rigs are designed to pre-drill suitable holes for blasting projects, facilitating the subsequent loading of explosives for blasting operations. They are widely used in mining, such as coal and metal mines, for drilling blasting holes for ore extraction; in road construction, for drilling blasting holes for road construction and tunnel excavation; in water conservancy projects, for drilling blasting holes for reservoir dam foundation excavation and canal widening; and in building demolition projects, for drilling suitable blasting holes, loading explosives, and safely demolishing buildings. Blasting hole drilling rigs are indispensable equipment in any situation involving altering geological structures or demolishing buildings through blasting.

[0003] However, some existing drilling rigs for blasting holes cannot provide precise linear guidance and limiting effects for the drill bit, which may cause the drill bit to deviate or bend during drilling, thereby reducing the drilling effect of the rig.

[0004] Therefore, those skilled in the art have provided a drilling rig for blasting holes to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a drilling rig for blasting holes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A drilling rig for blasting holes includes a fixed top plate; guide rods are fixedly connected to the lower three ends of the fixed top plate; an upper motor mounting frame is fixedly connected to the upper middle of the fixed top plate; an upper motor is fixedly connected to the upper middle of the upper motor mounting frame; a threaded rod is fixedly connected to the output end of the upper motor; a threaded rod mounting frame is threadedly connected to the outer side of the threaded rod; connecting rods are fixedly connected to the lower left and right ends of the threaded rod mounting frame; a lower motor mounting frame is fixedly connected to the lower side of the connecting rod; a lower motor is fixedly connected to the upper middle of the lower motor mounting frame; and a drill bit is fixedly connected to the output end of the lower motor.

[0008] As a further embodiment of this utility model, a control box is fixedly connected to the upper side of the upper motor mounting bracket, and a number of control keys are provided on the upper side of the control box.

[0009] As a further embodiment of this utility model, a fixed base plate is fixedly connected to the lower side of the guide rod, and ground fixing components are fixedly connected to the four ends of the lower side of the fixed base plate.

[0010] As a further embodiment of this utility model, the fixed base plate has a through groove in the middle, and an inlet pipe is fixedly connected to the upper middle part of the left side of the fixed base plate.

[0011] As a further embodiment of this utility model, the fixed base plate has a groove inside a water storage tank, and a first liquid guide pipe is provided inside the water storage tank. A pump is fixedly connected to one side of the first liquid guide pipe.

[0012] As a further embodiment of this utility model, a second liquid guide pipe is fixedly connected to one side of the pump, and an annular liquid guide pipe is fixedly connected to the upper side of the second liquid guide pipe.

[0013] As a further embodiment of this invention, a plurality of nozzles are fixedly connected to the inner wall of the annular liquid guide tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The guide rod not only provides precise linear guidance for the drill bit, limiting deviations and bending during drilling, ensuring that the drilled blasting hole extends along the predetermined direction and conforms to the straight trajectory required by the design, thus guaranteeing that the blasting energy is evenly distributed as expected and improving the success rate and effect of the blasting, but also ensures that the drill bit always stays on the predetermined trajectory during drilling. This helps maintain a relatively stable distance between the drill bit and the hole wall, ensuring that the diameter of the drilled blasting hole is relatively consistent throughout the entire depth range, preventing local diameters from being too large or too small. The uniformity of the borehole diameter has a significant impact on the amount of explosives loaded, the loading density, and the uniformity of the blasting power, which helps to achieve the ideal blasting effect. Furthermore, because the drill bit can drill stably and accurately under the guidance of the guide rod, it reduces the uneven drilling resistance and drilling interruptions caused by problems such as drill bit deflection. This allows the drill bit to work continuously under a relatively stable stress state and maintain a high and stable drilling speed. Compared with the frequent adjustment of the drill bit position and the handling of drilling faults when there is no guide rod, it greatly increases the drilling footage per unit time and speeds up the entire blasting hole drilling process.

[0016] 2. By spraying coolant onto the drill bit surface, it can not only rapidly vaporize by absorbing heat or exchange heat, effectively removing the heat generated by the drill bit and controlling its working temperature within a reasonable range, thus maintaining good mechanical properties such as hardness and strength, ensuring continuous and stable drilling operations, but also, without the cooling effect of coolant, the drill bit, operating in a high-temperature environment for a long time, is prone to localized overheating or even burning, especially critical parts such as the cutting edge, which are susceptible to serious damage such as edge annealing and chipping. The presence of coolant can greatly reduce the risk of drill bit damage caused by overheating, extend the normal service life of the drill bit, reduce the frequency of drill bit replacement, and lower drilling costs. Furthermore, coolant in this field often also has a lubricating function; the lubricating film formed on the drill bit surface can effectively reduce the coefficient of friction between the drill bit and the rock. During drilling, the resistance of the drill bit cutting into the rock is reduced by this lubricating film, making it easier for the drill bit to penetrate the rock. This reduces the drilling power required by the drill bit, lowering the energy consumption of the drilling rig and reducing the load on various components, thus helping to extend the overall service life of the drilling rig. In addition, the coolant mixes with the drill cuttings during spraying, making them wet and loose, changing the original accumulation state of the drill cuttings. Moreover, the coolant generally has a certain degree of fluidity, which can carry the drill cuttings smoothly out of the hole along the spiral grooves or other chip removal channels, preventing drill cuttings from accumulating in the hole and causing jamming. This ensures that drilling can continue smoothly and continuously, improving drilling efficiency. After drilling is completed, the inside of the blast hole can be cleaned, and then explosives can be filled into it. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a drilling rig used for blasting holes.

[0018] Figure 2 This is a schematic diagram of the internal structure of a drilling rig used for blasting holes.

[0019] Figure 3 This is a schematic diagram of the structure of a guide rod in a drilling rig used for blasting holes.

[0020] Figure 4 This is a schematic diagram of the internal structure of the fixed base plate in a drilling rig used for blasting hole drilling.

[0021] In the diagram: 1-Fixed top plate, 2-Guide rod, 3-Upper motor mounting bracket, 4-Upper motor, 5-Threaded rod, 6-Threaded rod mounting bracket, 7-Connecting rod, 8-Lower motor mounting bracket, 9-Lower motor, 10-Drill bit, 11-Control box, 12-Control key, 13-Fixed base plate, 14-Ground fixing component, 15-Through groove, 16-Inlet pipe, 17-Water storage tank, 18-First liquid guide pipe, 19-Pump, 20-Second liquid guide pipe, 21-Annular liquid guide pipe, 22-Nozzle. Detailed Implementation

[0022] Please see Figures 1-4 In this embodiment of the present invention, a drilling rig for drilling blast holes includes a fixed top plate 1; guide rods 2 are fixedly connected to the lower three ends of the fixed top plate 1; an upper motor mounting bracket 3 is fixedly connected to the upper middle of the fixed top plate 1; an upper motor 4 is fixedly connected to the upper middle of the upper motor mounting bracket 3; a threaded rod 5 is fixedly connected to the output end of the upper motor 4; a threaded rod mounting bracket 6 is threadedly connected to the outer side of the threaded rod 5; connecting rods 7 are fixedly connected to the lower left and right ends of the threaded rod mounting bracket 6; a lower motor mounting bracket 8 is fixedly connected to the lower side of the connecting rod 7; a lower motor 9 is fixedly connected to the upper middle of the lower motor mounting bracket 8; and a drill bit 10 is fixedly connected to the output end of the lower motor 9; the upper side of the upper motor mounting bracket 3 is fixedly connected to... The control box 11 has several control keys 12 on its upper side; a fixed base plate 13 is fixedly connected to the lower side of the guide rod 2, and ground fixing parts 14 are fixedly connected to the four ends of the lower side of the fixed base plate 13; a through groove 15 is cut in the middle of the fixed base plate 13, and an inlet pipe 16 is fixedly connected to the upper middle left side of the fixed base plate 13; a water storage tank 17 is cut inside the fixed base plate 13, and a first liquid guide pipe 18 is provided inside the water storage tank 17. A pump 19 is fixedly connected to one side of the first liquid guide pipe 18; a second liquid guide pipe 20 is fixedly connected to one side of the pump 19, and an annular liquid guide pipe 21 is fixedly connected to the upper side of the second liquid guide pipe 20; several nozzles 22 are fixedly connected to the inner wall of the annular liquid guide pipe 21.

[0023] The working principle of this utility model is as follows: When drilling for blasting holes is required, simply move the drill to a suitable position and position the drilling location at the lower center of the fixed base plate 13. Then, fix the drill to the ground using the ground fixing component 14. Start the lower motor 9, which will drive the drill bit 10 to rotate, and then the blasting hole drilling work can begin. Then, start the upper motor 4, which will drive the threaded rod 5 to rotate. The threaded rod 5 will drive the threaded rod fixing bracket 6, the connecting rod 7, and the lower motor fixing bracket 8 to move downward along the guide rod 2, and then drive the drill bit 10 to move steadily downward along the guide rod 2. Lateral movement, through the guide rod 2, not only provides precise linear guidance for the drill bit 10, limiting deviations and bending during drilling, ensuring that the drilled blasting hole extends along the predetermined direction and conforms to the straight trajectory required by the design, thus guaranteeing that the blasting energy can be evenly distributed as expected, improving the success rate and effect of the blasting, but also ensures that the drill bit 10 always stays on the predetermined trajectory during drilling, which helps maintain a relatively stable distance relationship between the drill bit 10 and the hole wall, ensuring that the diameter of the drilled blasting hole is relatively consistent throughout the entire depth range, and preventing local diameters from being too large or too small.The uniformity of the borehole diameter has a significant impact on the loading amount, loading density, and uniformity of the explosive force, contributing to achieving the desired blasting effect. Furthermore, because the drill bit 10 can drill stably and accurately under the guidance of the guide rod 2, it reduces uneven drilling resistance and drilling interruptions caused by drill bit 10 deviation, allowing the drill bit 10 to work continuously under relatively stable stress and maintain a high and stable drilling speed. Compared to the frequent adjustments to the drill bit 10 position and troubleshooting required without the guide rod 2, this significantly increases the drilling progress per unit time and accelerates the overall drilling progress of the blasting hole. After the drill bit 10 has been working for a long time, the pump 19 can be started. The pump 19 will then draw coolant from the water storage tank 17 through the first guide pipe 18 and deliver it to the annular guide pipe 21 through the second guide pipe 20. The coolant can then be sprayed onto the surface of the drill bit 10 through the nozzle 22, thus improving the cooling effect of the drill bit 10. The coolant sprayed onto the surface of the drill bit 10 not only absorbs heat and rapidly vaporizes or exchanges heat, effectively removing the heat generated by the drill bit 10, but also controls the working temperature of the drill bit 10 within a reasonable range, ensuring that it maintains good mechanical properties such as hardness and strength, and guaranteeing that the drill bit 10 can continuously and stably perform drilling operations. Moreover, without the cooling effect of the coolant, the drill bit 10, working in a high-temperature environment for a long time, is prone to local overheating or even burning, especially critical parts such as the cutting edge of the drill bit 10, which are prone to serious damage such as edge annealing and chipping. The presence of coolant can greatly reduce the risk of damage to the drill bit 10 due to overheating, extend the normal service life of the drill bit 10, reduce the frequency of drill bit 10 replacement, and reduce drilling costs. In addition, the coolant in this field often also has a lubricating function. The lubricating film formed on the surface of the drill bit 10 can effectively reduce the coefficient of friction between the drill bit 10 and the rock. During drilling, the resistance of drill bit 10 to cutting rock is reduced by this lubricating film, making it easier for drill bit 10 to cut into the rock. This reduces the drilling power required by drill bit 10, which not only reduces the energy consumption of the drilling rig but also reduces the load on various components of the drilling rig, helping to extend the overall service life of the drilling rig. In addition, the coolant mixes with the drill cuttings cut by drill bit 10 during spraying, making them wet and loose, changing the original accumulation state of the drill cuttings. Moreover, the coolant generally has a certain degree of fluidity, which can carry the drill cuttings smoothly out of the hole along the spiral grooves or other chip removal channels, avoiding the accumulation of drill cuttings in the hole and causing drill jamming. This ensures that the drilling work can continue and proceed smoothly, improving drilling efficiency. After drilling is completed, the inside of the blast hole can be cleaned, and then explosives can be filled into it.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drilling rig for drilling blast holes, comprising a fixed top plate (1) and a guide rod (2), characterized in that, The fixed top plate (1) is fixedly connected to three guide rods (2) at its lower side, and to the middle of the upper side of the fixed top plate (1) is fixedly connected to an upper motor mounting bracket (3). The upper motor (4) is fixedly connected to the upper middle side of the upper motor mounting bracket (3). The output end of the upper motor (4) is fixedly connected to a threaded rod (5). The outer side of the threaded rod (5) is threadedly connected to a threaded rod mounting bracket (6). The left and right ends of the lower side of the threaded rod mounting bracket (6) are fixedly connected to connecting rods (7). The lower side of the connecting rod (7) is fixedly connected to a lower motor mounting bracket (8). The upper middle side of the lower motor mounting bracket (8) is fixedly connected to a lower motor (9). The output end of the lower motor (9) is fixedly connected to a drill bit (10).

2. The drilling rig for drilling blast holes according to claim 1, characterized in that, The upper side of the upper motor mounting bracket (3) is fixedly connected to a control box (11), and the upper side of the control box (11) is provided with several control keys (12).

3. The drilling rig for blasting hole drilling according to claim 1, characterized in that, The guide rod (2) is fixedly connected to a fixed base plate (13) on its lower side, and the fixed base plate (13) is fixedly connected to ground fixing parts (14) at its four lower ends.

4. The drilling rig for blasting holes according to claim 3, characterized in that, The fixed base plate (13) has a through groove (15) in the middle, and an inlet pipe (16) is fixedly connected to the upper middle left side of the fixed base plate (13).

5. A drilling rig for drilling blast holes according to claim 3, characterized in that, The fixed base plate (13) has a groove inside a water storage tank (17), and the water storage tank (17) is provided with a first liquid guide pipe (18), and a pump (19) is fixedly connected to one side of the first liquid guide pipe (18).

6. The drilling rig for blasting holes according to claim 5, characterized in that, A second liquid guide pipe (20) is fixedly connected to one side of the pump (19), and an annular liquid guide pipe (21) is fixedly connected to the upper side of the second liquid guide pipe (20).

7. A drilling rig for drilling blast holes according to claim 6, characterized in that, Several nozzles (22) are fixedly connected to the inner wall of the annular liquid guide tube (21).

Images