A perforating device for mine blasting

Abstract

The application relates to a drilling device for mine blasting, which comprises a machine body and a drill bit, the drill bit is connected to the advancing side of the machine body, a water tank is connected to the machine body, the water tank is annular, the drill bit vertically penetrates the water tank, the water tank is located at the top of the drill bit, a water spraying ring is connected to the bottom of the water tank, the water spraying ring is provided with an inner cavity, the water tank is communicated with the inner cavity, the drill bit penetrates the water spraying ring, and the water spraying ring is used for spraying water. The application has the following effects: dust generated during drilling can be reduced, and the influence on workers is reduced.

Description

Technical Field

[0001] This application relates to the field of drilling machines, and more particularly to a drilling device for mining blasting. Background Technology

[0002] Currently, mine blasting is a common mining method that can effectively break and remove large quantities of rock and ore. Before conducting mine blasting, a detailed engineering design and safety assessment are usually required to ensure the blasting process is safe and controllable, minimizing the impact on the surrounding environment and personnel. Mine blasting must strictly adhere to relevant safety regulations and standards, including the protection of the surrounding environment, nearby residents, and miners. Furthermore, it is necessary to effectively control the dust, noise, and vibration generated by the explosion to reduce the impact on the surrounding environment and personnel.

[0003] Before blasting in a mine, workers need to use a drilling machine to drill holes in the mine to install explosives. Chinese utility model application CN202321582570.7 discloses a drilling device for open-pit mine blasting, including a fixed frame and a placement plate. The fixed frame is located on top of the placement plate, and an L-shaped plate is fixedly connected to the top of the fixed frame. A movable platform is fixedly connected to the bottom of the L-shaped plate, and four wheels are rotatably connected to the bottom of the movable platform. Tracks are provided on both sides of the movable platform. This utility model has the advantages of easy movement in the mine and convenient adjustment of the drilling position. In actual use, through the coordinated use of the fixed frame, motor, movable arm, positioning block, connecting arm, guide block, and placement plate, the angle and position of the drill bit can be easily adjusted, allowing the drilling device to drill from all directions without blind spots, making it convenient for workers to use.

[0004] Drilling machines generate a lot of dust during drilling, which can affect the workers operating the machines. Summary of the Invention

[0005] In order to reduce the dust generated during drilling and thus minimize the impact on workers, this application provides a drilling device for mining blasting.

[0006] This application provides a drilling device for mining blasting, which adopts the following technical solution:

[0007] A drilling device for mining blasting includes a body and a drill bit. The drill bit is connected to the forward side of the body. The body is connected to a water tank, which is annular. The drill bit passes vertically through the water tank, which is located at the top of the drill bit. A water spray ring is connected to the bottom of the water tank. The water spray ring has an inner cavity, and the water tank communicates with the inner cavity. The drill bit passes through the water spray ring, which is used for spraying water.

[0008] By adopting the above technical solution, after the machine body travels to the designated drilling position, the drill bit drills a hole in the ground. Water in the water tank is transported to the inner cavity of the water spray ring, which can spray water to the drilling position. By spraying water, water can be sprayed into the air and onto the ground, which can reduce dust in the air and reduce dust generated during drilling. This can effectively reduce dust and reduce the impact on the health of workers.

[0009] Preferably, the drill bit has a spiral blade wound around its peripheral wall, the spiral blade extends along the length of the drill bit, and the spiral blade has a plurality of first through holes, each of the first through holes being evenly spaced along the extension direction of the spiral blade, and the first through holes being located on the side where the spiral blade is connected to the drill bit.

[0010] By adopting the above technical solution, when the drill bit drills into the ground, the spiral blades can discharge the gravel and soil generated during drilling from the hole, thereby reducing the amount of gravel and soil remaining in the hole, so that explosives can be placed into the hole after drilling. After the water spray ring sprays water onto the drill bit, the water can flow to the bottom of the drill bit through the first through hole, thereby wetting the bottom of the drill bit and reducing the temperature of the drill bit during drilling. At the same time, when the water passes through the first through hole, some soil will flow to the bottom of the drill bit with the water. After the water and soil mix, a moist layer can be formed at the bottom of the hole. When the drill bit continues to drill, the moist layer can reduce the generation of dust, and the drilled end of the drill bit is always in the moist layer, which can continuously cool the drill bit.

[0011] Preferably, the water tank is fitted with a connecting ring, and the connecting ring is connected to a dust cover. The dust cover is made of transparent plastic film, and a spring frame is connected to the inner wall of the dust cover. The spring frame is vertically arranged and its top is connected to the connecting ring.

[0012] By adopting the above technical solution, the dust cover is connected to the water tank through a connecting ring. When drilling holes in the ground, the dust cover can be placed at the drilling location. The bottom of the spring frame is in contact with the ground. The dust cover can block the dust generated during drilling. The spring frame can extend and retract in the vertical direction. The dust cover can thus cover the ground at different heights. Workers can observe the drilling situation of the drill bit through the dust cover.

[0013] Preferably, the water tank is connected to the inner cavity via a water pump, and multiple water outlets are provided on both the peripheral wall and bottom wall of the water spray ring. The water outlets are connected to the inner cavity, and each water outlet is distributed at equal angles along the circumference of the water spray ring. Each water outlet on the bottom wall of the water spray ring faces the peripheral wall of the drill bit.

[0014] By adopting the above technical solution, the water pump can pressurize the water in the water tank and deliver it to the inner cavity. The water in the inner cavity can be sprayed out through various water outlets. The water sprayed from the circumferential wall of the water spray ring can be sprayed onto the inner wall of the dust cover, which can clean the inner wall of the dust cover and reduce dust inside the dust cover. The water sprayed from the bottom wall of the water spray ring can be sprayed onto the drill bit, which can cool the drill bit and clean the mud and gravel attached to the drill bit.

[0015] Preferably, the inner cavity is provided with a rotating ring, and the rotating ring has a plurality of second through holes. Each of the second through holes is distributed at equal angular intervals along the circumference of the rotating ring. The rotating ring is connected to a driving assembly, which is used to drive the rotating ring to rotate to open and close the water outlet holes on the peripheral wall of the water spray ring. When the water outlet holes on the peripheral wall of the water spray ring are opened, each of the second through holes communicates with each of the water outlet holes on the peripheral wall of the water spray ring.

[0016] By adopting the above technical solution, when there is a lot of dust in the dust cover or a lot of dust adhering to the inner wall of the dust cover, the drive component drives the rotating ring to rotate. After the rotating ring rotates to the point where the second through hole connects with the water outlet hole, the water outlet hole opens, and water can be sprayed out through the various water outlet holes on the periphery of the spray ring to the inner wall of the dust cover. This can reduce dust and clean the dust cover, and make it convenient for staff to observe the working status of the drill bit inside the dust cover.

[0017] Preferably, the drive assembly includes a gear ring, a gear, and a motor. The top of the water spray ring has an annular hole. The rotating ring passes through the annular hole via a connecting plate and is connected to the gear ring. The central axis of the gear ring is collinear with the central axis of the rotating ring. The gear meshes with the gear ring. The output shaft of the motor is connected to the gear. The connecting plate is connected to the inner wall of the annular hole via a rubber diaphragm.

[0018] By adopting the above technical solution, the rubber membrane can improve the sealing between the connecting plate and the annular hole. The motor drives the gear to rotate, the gear drives the gear ring to rotate, and the gear ring drives the rotating ring to rotate through the connecting plate. When the rotating ring rotates, the rubber membrane can deform. The rotation of the rotating ring can open and close the water outlet holes on the peripheral wall of the spray ring.

[0019] Preferably, the bottom of the spring frame is connected to a plurality of ground nails, and the ground nails are distributed at intervals along the circumference of the spring frame, and the ground nails are used to connect with the ground.

[0020] By adopting the above technical solution, after the dust cover is installed at the drilling location, the ground nail can be inserted into the ground. Workers can use the ground nail to connect the bottom of the spring frame to the ground, which can improve the firmness of the connection between the spring frame and the ground and minimize the risk of the spring frame separating from the ground due to the vibration generated by the drill bit.

[0021] Preferably, the ground nail is connected to the spring skeleton by a connecting rope, the connecting ring is embedded with a first magnetic ring, the central axis of the first magnetic ring is collinear with the central axis of the connecting ring, the bottom of the water tank is provided with a ring groove, the top wall of the ring groove is embedded with a second magnetic ring, the connecting ring is sleeved on the water tank through the ring groove, and the first magnetic ring attracts the second magnetic ring when they are close to each other.

[0022] By adopting the above technical solution, after the connecting ring is put on the water tank, the connecting ring and the water tank are attracted by the first magnetic ring and the second magnetic ring, which facilitates the connection or removal of the connecting ring, and thus facilitates the removal of the dust cover. After the connecting ring is removed, the staff can compress the spring frame in the vertical direction. After the spring frame is compressed, the connecting rope can be wrapped around the bottom of the spring frame and the connecting ring and passed through the connecting rope through the ground nail, so as to store the dust cover.

[0023] Preferably, a lifting assembly is connected to the forward side of the machine body, and the water tank and the drill bit are both connected to the lifting assembly. The lifting assembly is used to move the water tank and the drill bit in a vertical direction.

[0024] By adopting the above technical solution, the lifting assembly raises and lowers the water tank and drill bit in the vertical direction, which facilitates the pushing and pulling of the drill bit when drilling. The water tank and drill bit are raised and lowered at the same time, which can minimize interference between the drill bit and the water tank.

[0025] Preferably, the lifting assembly includes a guide rod, a sliding block, and a hydraulic cylinder. The guide rod and the hydraulic cylinder are both vertically arranged on the machine body. The sliding block is sleeved on the guide rod and connected to the piston of the hydraulic cylinder. The water tank and the drill bit are both connected to the sliding block.

[0026] By adopting the above technical solution, the hydraulic cylinder can push and pull the sliding block in the vertical direction, and the sliding block can move along the guide rod, thereby moving the water tank and the drill bit.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. After the machine travels to the designated drilling position, the drill bit drills a hole in the ground. Water in the water tank is delivered to the inner cavity of the water spray ring, which can spray water to the drilling position. By spraying water, water can be sprayed into the air and onto the ground, which can reduce dust in the air and reduce dust generated during drilling. This can effectively reduce dust and reduce the impact on the health of workers.

[0029] 2. When the drill bit is drilling into the ground, the spiral blades can discharge the gravel and soil generated during drilling from the hole, thereby reducing the amount of gravel and soil remaining in the hole, so that explosives can be placed into the hole after drilling. After the water spray ring sprays water onto the drill bit, the water can flow to the bottom of the drill bit through the first through hole, so that the bottom of the drill bit is wetted, which can reduce the temperature of the drill bit during drilling. At the same time, when the water passes through the first through hole, some soil will flow to the bottom of the drill bit with the water. After the water and soil mix, a moist layer can be formed at the bottom of the hole. When the drill bit continues to drill, the moist layer can reduce the generation of dust, and the drilled end of the drill bit is always in the moist layer, which can continuously cool the drill bit.

[0030] 3. After the dust cover is installed at the drilling location, the ground nail can be inserted into the ground. Workers can use the ground nail to connect the bottom of the spring frame to the ground, which can improve the firmness of the connection between the spring frame and the ground and minimize the risk of the spring frame separating from the ground due to the vibration generated by the drill bit. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a drilling device for mine blasting according to an embodiment of this application.

[0032] Figure 2 This is a partial structural schematic diagram of a drilling device for mine blasting according to an embodiment of this application.

[0033] Figure 3 This is an exploded structural diagram of a portion of a drilling device for mine blasting according to an embodiment of this application, used to illustrate the first magnetic ring.

[0034] Figure 4 This is a cross-sectional view of a portion of the structure of a drilling device for mine blasting according to an embodiment of this application, used to show the drive components.

[0035] Figure 5 This is an exploded structural diagram of a portion of a drilling device for mine blasting according to an embodiment of this application, used to illustrate an annular hole.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Body;

[0038] 200. Drill bit; 201. Spiral blade; 202. First through hole;

[0039] 300. Water tank; 301. Water pump; 302. Annular groove; 303. Second magnetic ring;

[0040] 400. Spray ring; 401. Water outlet; 402. Rotating ring; 403. Second through hole; 404. Annular hole; 405. Rubber diaphragm;

[0041] 500. Connecting ring; 501. Dust cover; 502. Spring frame; 503. Ground stake; 504. Connecting rope; 505. First magnetic ring;

[0042] 600. Drive assembly; 601. Gear ring; 602. Gear; 603. Motor;

[0043] 700. Lifting assembly; 701. Guide rod; 702. Sliding block; 703. Hydraulic cylinder. Detailed Implementation

[0044] The present application will be further described in detail below with reference to all the accompanying drawings.

[0045] This application discloses a drilling device for mine blasting. (Refer to...) Figure 1 , Figure 2 and Figure 3 The drilling device for mining blasting includes a body 100, a drill bit 200, a water tank 300, and a dust cover 501. The drill bit 200 and the water tank 300 are both connected to the body 100. The drill bit 200 is used to drill holes in the ground. The water tank 300 is connected to a water spray ring 400, which is used to spray water. The dust cover 501 is connected to the water tank 300 and is used to cover the drilling location. The dust cover 501 can block the dust generated by the drill bit 200 drilling. The water sprayed by the water spray ring 400 can reduce dust, thereby reducing the impact of dust on workers.

[0046] Reference Figure 3 and Figure 4 The drill bit 200 is vertically positioned, and the water tank 300 is a cylindrical ring also vertically positioned. The drill bit 200 passes through the water tank 300, which is located at the top of the drill bit 200. The central axis of the drill bit 200 is collinear with the central axis of the water tank 300. The bottom of the water tank 300 has a cavity, which is circular in shape.

[0047] Reference Figure 1 and Figure 2 The machine body 100 is connected to a lifting assembly 700 on its forward side. The lifting assembly 700 includes a guide rod 701, a hydraulic cylinder 703, and a sliding block 702. The guide rod 701 and the hydraulic cylinder 703 are both vertically arranged and connected to the machine body 100. The piston rod of the hydraulic cylinder 703 is vertically downward. The sliding block 702 is sleeved on the guide rod 701 and connected to the end of the piston rod of the hydraulic cylinder 703. The hydraulic cylinder 703 drives the sliding block 702 to move. The sliding block 702 thus slides along the length of the guide rod 701 and is connected to the guide rod 701. The drill bit 200 and the water tank 300 are both connected to the sliding block 702, thereby raising and lowering the drill bit 200 and the water tank 300.

[0048] Reference Figure 3 and Figure 4A section of the drill bit 200 located below the water tank 300 is connected to a spiral blade 201. The spiral blade 201 is spirally wound around the peripheral wall of the drill bit 200 along its length. The spiral blade 201 has multiple first through holes 202. Each first through hole 202 is evenly spaced along the length of the spiral blade 201 and is located at the connection between the spiral blade 201 and the peripheral wall of the drill bit 200. In this embodiment, the first through hole 202 is semi-circular. In other embodiments, the first through hole 202 is an elongated arc shape and its length extends along the length of the spiral blade 201.

[0049] Reference Figure 4 and Figure 5 The top of the water spray ring 400 is connected to the bottom of the water tank 300. The water spray ring 400 is circular, and the drill bit 200 passes through it. The water spray ring 400 has an inner cavity. A water pump 301 is installed in the cavity at the bottom of the water tank 300. The water pump 301 is connected to the water tank 300, and the inner cavity of the water spray ring 400 is connected to the water pump 301. The water pump 301 delivers water from the water tank 300 to the inner cavity of the water spray ring 400. Multiple water outlet holes 401 are provided on both the peripheral wall and the bottom wall of the water spray ring 400. The water outlet holes 401 are evenly spaced along the circumference of the water spray ring 400, and each water outlet hole 401 is connected to the inner cavity of the water spray ring 400. The water outlet 401 located on the circumferential wall of the water spray ring 400 has its length direction aligned with the radial direction of the water spray ring 400. The water outlet 401 located on the bottom wall of the water spray ring 400 forms an angle with the length direction of the drill bit 200, and the water outlet 401 on the bottom wall of the water spray ring 400 faces the circumferential wall of the drill bit 200. An annular hole 404 is provided at the top of the water spray ring 400. The length direction of the annular hole 404 is aligned with the circumferential direction of the water spray ring 400. A rubber diaphragm 405 is provided inside the annular hole 404, and the rubber diaphragm 405 is connected to the inner wall of the annular hole 404. The rubber diaphragm 405 is filled with gas.

[0050] A rotating ring 402 is provided in the inner cavity of the water spray ring 400. The central axis of the rotating ring 402 is collinear with the central axis of the water spray ring 400. The outer peripheral wall of the rotating ring 402 is in contact with the inner peripheral wall of the water spray ring 400. Multiple second through holes 403 are provided on the peripheral wall of the rotating ring 402. The number of second through holes 403 is the same as the number of water outlet holes 401 on the peripheral wall of the water spray ring 400. The second through holes 403 are distributed at equal angular intervals along the circumference of the rotating ring 402. The rotating ring 402 is connected to a drive assembly 600. The drive assembly 600 is located in the cavity at the bottom of the water tank 300. The drive assembly 600 includes a gear ring 601, a gear 602, and a motor 603. The central axis of the gear ring 601 is collinear with the central axis of the rotating ring 402. A connecting plate is connected to the inner wall of the rotating ring 402. The connecting plate passes upward through a rubber diaphragm 405 and connects to the gear ring 601. The rubber diaphragm 405 is connected to the connecting plate. Gear 602 meshes with the inner ring of gear ring 601. The output shaft of motor 603 is connected to the center of gear 602. Motor 603 drives gear 602, which drives gear ring 601 to rotate. This causes rotating ring 402 to rotate. When rotating ring 402 rotates to the point where the second through hole 403 connects with the water outlet hole 401 on the peripheral wall of water spray ring 400, water in the inner cavity of water spray ring 400 can be sprayed out through the water outlet hole 401 on the peripheral wall of water spray ring 400.

[0051] Reference Figure 3 and Figure 4 The bottom of the water tank 300 has an annular groove 302, the central axis of which is collinear with the central axis of the water tank 300. A second magnetic ring 303 is embedded in the top wall of the annular groove 302. A connecting ring 500 is fitted onto the bottom of the water tank 300, the central axis of which is collinear with the central axis of the water tank 300. The connecting ring 500 is located in the annular groove 302. A first magnetic ring 505 is embedded in the top of the connecting ring 500, the central axis of which is collinear with the central axis of the second magnetic ring 303. The first magnetic ring 505 and the second magnetic ring 303 are attracted to each other. A dust cover 501 is connected to the bottom of the connecting ring 500. The dust cover 501 is cylindrical. In other embodiments, the dust cover 501 is frustum-shaped. The water spray ring 400 and drill bit 200 are both located within a dust cover 501, which is made of transparent plastic film. A spring frame 502 is connected to the inner wall of the dust cover 501. The spring frame 502 is vertically positioned, and its top end is connected to the bottom of the connecting ring 500. Multiple connecting ropes 504 are connected to the bottom of the spring frame 502. In other embodiments, the connecting ropes 504 are elastic ropes, and each connecting rope 504 is distributed at equal angular intervals along the circumference of the spring frame 502. Each connecting rope 504 is connected to a ground stake 503, which is cone-shaped and can be inserted into the ground.

[0052] The implementation principle of a drilling device for mine blasting according to an embodiment of this application is as follows: Before the drill bit 200 drills into the ground, the operator first installs a dust cover 501. After the connecting ring 500 is fitted onto the bottom of the water tank 300, the first magnetic ring 505 and the second magnetic ring 303 are attracted together. The drill bit 200 drills into the ground. While the drill bit 200 is drilling, the spiral blades 201 can discharge some of the gravel and soil from the hole. The water sprayed from the water outlet 401 of the water spray ring 400 can reduce dust inside the dust cover 501 and clean the dust cover 501, so that the operator can observe the working condition of the drill bit 200. The water outlet 401 of the water spray ring 400 sprays water onto the periphery of the drill bit 200, which can clean the drill bit 200 and cool it down at the same time. The water on the drill bit 200 flows into the hole, which can keep the drilling surface aligned with the drill bit 200 moist and reduce the dust generated by the drill bit 200 during drilling.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drilling device for mine blasting, characterized in that: The device includes a body (100) and a drill bit (200). The drill bit (200) is connected to the forward side of the body (100). The body (100) is connected to a water tank (300). The water tank (300) is annular. The drill bit (200) passes vertically through the water tank (300). The water tank (300) is located at the top of the drill bit (200). A water spray ring (400) is connected to the bottom of the water tank (300). The water spray ring (400) has an inner cavity. The water tank (300) communicates with the inner cavity. The drill bit (200) passes through the water spray ring (400). The water spray ring (400) is used for spraying water. The drill bit (200) has a spiral blade (201) wound around its peripheral wall. The spiral blade (201) extends along the length of the drill bit (200). The spiral blade (201) has a plurality of first through holes (202). Each first through hole (202) is evenly spaced along the extension direction of the spiral blade (201). The first through holes (202) are located on the side where the spiral blade (201) is connected to the drill bit (200). The water tank (300) is fitted with a connecting ring (500), and the connecting ring (500) is connected to a dust cover (501). The dust cover (501) is made of transparent plastic film, and a spring frame (502) is connected to the inner wall of the dust cover (501). The spring frame (502) is vertically arranged and its top is connected to the connecting ring (500). The water tank (300) is connected to the inner cavity via a water pump (301). The peripheral wall and bottom wall of the water spray ring (400) are provided with multiple water outlet holes (401). The water outlet holes (401) are connected to the inner cavity. Each water outlet hole (401) is distributed at equal angles along the circumference of the water spray ring (400). Each water outlet hole (401) on the bottom wall of the water spray ring (400) faces the peripheral wall of the drill bit (200). The inner cavity is provided with a rotating ring (402), and the rotating ring (402) has a plurality of second through holes (403). Each second through hole (403) is distributed at equal angular intervals along the circumference of the rotating ring (402). The rotating ring (402) is connected to a driving assembly (600). The driving assembly (600) is used to drive the rotating ring (402) to rotate to open and close the water outlet hole (401) on the peripheral wall of the water spray ring (400). When the water outlet hole (401) on the peripheral wall of the water spray ring (400) is opened, each second through hole (403) is connected to each water outlet hole (401) on the peripheral wall of the water spray ring (400). The drive assembly (600) includes a gear ring (601), a gear (602), and a motor (603). The top of the water spray ring (400) has an annular hole (404). The rotating ring (402) passes through the annular hole (404) and is connected to the gear ring (601) via a connecting plate. The central axis of the gear ring (601) is collinear with the central axis of the rotating ring (402). The gear (602) meshes with the gear ring (601). The output shaft of the motor (603) is connected to the gear (602). The connecting plate is connected to the inner wall of the annular hole (404) via a rubber membrane (405).

2. The drilling device for mine blasting according to claim 1, characterized in that: The bottom of the spring frame (502) is connected to a plurality of ground nails (503), and each ground nail (503) is distributed at intervals along the circumference of the spring frame (502). The ground nails (503) are used to connect to the ground.

3. The drilling device for mine blasting according to claim 2, characterized in that: The ground nail (503) is connected to the spring frame (502) via a connecting rope (504). The connecting ring (500) is fitted with a first magnetic ring (505). The central axis of the first magnetic ring (505) is collinear with the central axis of the connecting ring (500). The bottom of the water tank (300) is provided with a ring groove (302). The top wall of the ring groove (302) is fitted with a second magnetic ring (303). The connecting ring (500) is fitted onto the water tank (300) through the ring groove (302). When the first magnetic ring (505) approaches the second magnetic ring (303), the two attract each other.

4. The drilling device for mine blasting according to claim 1, characterized in that: A lifting assembly (700) is connected to the forward side of the machine body (100). The water tank (300) and the drill bit (200) are both connected to the lifting assembly (700). The lifting assembly (700) is used to move the water tank (300) and the drill bit (200) in the vertical direction.

5. The drilling device for mine blasting according to claim 4, characterized in that: The lifting assembly (700) includes a guide rod (701), a sliding block (702), and a hydraulic cylinder (703). The guide rod (701) and the hydraulic cylinder (703) are both vertically arranged on the machine body (100). The sliding block (702) is sleeved on the guide rod (701). The sliding block (702) is connected to the piston of the hydraulic cylinder (703). The water tank (300) and the drill bit (200) are both connected to the sliding block (702).

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