Deep hole blasting device for open-cast mining
By combining an electric three-jaw chuck with a guiding mechanism, along with lifting and height adjustment, the problem of swaying and collision during the descent of the explosive charge is solved, achieving safe and efficient deep-hole blasting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WAFANGDIAN YONGXING BLASTING ENG CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-05
AI Technical Summary
During deep-hole blasting, the explosive charge is prone to colliding with the borehole wall as it descends, posing a safety hazard. Existing technologies lack effective guidance and protective measures.
An electric three-jaw chuck is used in conjunction with a guiding mechanism. The guiding mechanism guides the descent of the electric three-jaw chuck. Combined with a lifting mechanism and a height adjustment mechanism, the explosive charge is ensured to descend stably. Rubber pads and wear-resistant coatings are installed inside the protective cylinder to reduce the risk of collision.
This effectively reduces the shaking of the explosive charge during descent, prevents it from colliding with the borehole wall, improves safety and reliability, and reduces the risk of explosion.
Smart Images
Figure CN224202312U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of blasting, and in particular to a deep-hole blasting device for open-pit mining. Background Technology
[0002] Deep-hole blasting refers to a blasting technique that drills holes with a diameter greater than 50 mm and a depth greater than 5 meters. After the blasting hole is drilled, an explosive charge is placed inside the hole, and then the workers remotely detonate the explosive to blast the rock inside the deep hole. It has a wide range of applications in open-pit mining areas. However, the current methods for deep-hole blasting present the following problems: When placing explosive charges into the deep hole, workers first tie them to a rope, then lower the rope, allowing the explosive charge to descend to the bottom of the hole under gravity. Because the descent is controlled by the rope without a guiding mechanism, the explosive charge is prone to swaying during its descent, causing it to collide with the inner wall of the deep hole. This collision greatly increases the risk of detonation, posing a significant danger and poor safety. Therefore, a device is needed to reduce the collision between the explosive charge and the inner wall of the deep hole during deployment. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a deep-hole blasting device for open-pit mining that reduces the shaking of the electric three-jaw chuck during descent, reduces the shaking of the explosive charge, and prevents the explosive charge from colliding with the inner wall of the deep hole when it is dropped into the deep hole. This device has high safety and reliability.
[0004] This utility model discloses a deep-hole blasting device for open-pit mining, comprising an electric mobile vehicle and an electric three-jaw chuck; it also includes a protective cylinder, a lifting mechanism, a guiding mechanism, and a height adjustment mechanism. The protective cylinder has a chamber inside, with openings at both its upper and lower ends. The protective cylinder is mounted on the electric mobile vehicle via the lifting mechanism, which is used to raise and lower the protective cylinder. The guiding mechanism is mounted on the electric three-jaw chuck and the protective cylinder, guiding the electric three-jaw chuck. The height adjustment mechanism is used to adjust the height of the electric three-jaw chuck. A miniature camera is installed at the lower part of the protective cylinder chamber; connecting the miniature camera to a worker's camera allows monitoring of the lower part of the protective cylinder. During deep-hole blasting, the electric mobile vehicle is first moved, which in turn moves the lifting mechanism and the protective cylinder, bringing the protective cylinder above the deep hole. The protective cylinder is then lowered via a lifting mechanism into the deep hole, where its lower end contacts the lower end of the hole. The upper end of the explosive charge is then clamped by an electric three-jaw chuck, which is lowered via a height adjustment mechanism, pulling the explosive charge down until it reaches the lower end of the deep hole. The operator then remotely opens the chuck, allowing the explosive charge to fall to the bottom of the hole. The protective cylinder and chuck are then raised above the hole, and the explosive charge is detonated remotely. Because the electric three-jaw chuck is guided by a guiding mechanism during descent, its swaying is reduced, minimizing the movement of the explosive charge and preventing collisions with the inner wall of the deep hole during deployment. This ensures high safety and reliability.
[0005] Preferably, the lifting mechanism includes an electric slide rail, a lifting block, and a connecting plate. The electric slide rail is fixedly installed on the electric mobile vehicle, and the lifting block is installed on the electric slide rail. The electric slide rail is used to lift the lifting block, and the protective cylinder is fixedly installed on the lifting block through the connecting plate. When adjusting the height of the protective cylinder, the electric slide rail is opened, and the electric slide rail adjusts the height of the connecting plate through the lifting block, thereby adjusting the height of the protective cylinder, which facilitates the adjustment of the height of the protective cylinder.
[0006] Preferably, a rubber pad is provided in the inner wall of the protective cylinder, and a wear-resistant coating is provided on the outer wall of the protective cylinder. By providing a rubber pad in the inner wall of the protective cylinder, once the explosive charge shakes in the protective cylinder, the explosive charge comes into contact with the rubber pad, reducing the instantaneous impulse of the explosive charge upon collision and reducing the risk of the explosive charge exploding. By providing a wear-resistant coating, the wear resistance of the protective cylinder is improved, and the service life of the protective cylinder is increased.
[0007] Preferably, the guiding mechanism includes two sets of slide rails, a lifting plate, and a lifting ring. The two sets of slide rails are fixedly installed on the left and right sides of the inner wall of the protective cylinder, respectively. The lifting plate is slidably mounted on the two sets of slide rails. The lifting ring is fixedly installed on the upper end of the lifting plate, and the electric three-jaw chuck is fixedly installed on the lower end of the lifting plate. When the explosive charge is dropped into the deep hole, the upper end of the explosive charge is clamped and fixed by the electric three-jaw chuck. Then, the lifting ring is lowered by the height adjustment mechanism. The lifting ring drives the lifting plate and the electric three-jaw chuck to descend, and the electric three-jaw chuck drives the explosive charge to descend. Since the lifting plate is guided by the two sets of slide rails during the descent, the lifting plate is prevented from shaking, thereby preventing the electric three-jaw chuck and the explosive charge from shaking, reducing the risk of the explosive charge shaking and improving reliability.
[0008] Preferably, the height adjustment mechanism includes a mounting plate, a winch, and a rope. The mounting plate is fixedly mounted on the upper end of the electric slide rail, and the winch is fixedly mounted on the upper end of the mounting plate. A rope is installed on the winch, and the lower end of the rope is tied and fixed to the lifting ring. When the electric three-jaw chuck is lowered, the winch is opened, and the winch unwinds the rope, thereby lowering the lifting ring, the lifting plate, and the electric three-jaw chuck, and thus lowering the explosive charge on the electric three-jaw chuck; this facilitates the deployment of the explosive charge.
[0009] Preferably, it also includes a counterweight, which is fixedly installed on the left side of the upper part of the electric mobile vehicle; through the above arrangement, the forces on the left and right sides of the electric mobile vehicle are more balanced, thereby improving the stability of the electric mobile vehicle.
[0010] Preferably, it also includes a storage box, which is installed on the top of the counterweight; with the above configuration, some tools can be stored in the storage box, improving convenience.
[0011] Compared with the prior art, the beneficial effects of this utility model are: it reduces the shaking of the electric three-jaw chuck during the descent process, reduces the shaking of the explosive charge, and prevents the explosive charge from colliding with the inner wall of the deep hole when it is dropped into the deep hole, thus ensuring high safety and reliability. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0014] Figure 3 This is a structural diagram of the lifting mechanism and protective cylinder, etc.
[0015] Figure 4 It is a structural diagram of the mounting plate, slide rails, and winch, etc.
[0016] Figure 5 yes Figure 4A magnified structural diagram of part A in the middle.
[0017] The attached diagram is labeled as follows: 1. Electric mobile vehicle; 2. Electric three-jaw chuck; 3. Protective cylinder; 4. Electric slide rail; 5. Lifting block; 6. Connecting plate; 7. Slide rail; 8. Lifting plate; 9. Lifting ring; 10. Mounting plate; 11. Winch; 12. Rope; 13. Counterweight; 14. Storage box; 15. Explosive charge. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0019] Example 1
[0020] like Figures 1 to 5 This utility model discloses a deep-hole blasting device for open-pit mining, comprising an electric mobile vehicle 1, an electric three-jaw chuck 2, a protective cylinder 3, a lifting mechanism, a guiding mechanism, and a height adjustment mechanism. The protective cylinder 3 has a chamber inside, with openings at both its upper and lower ends. The protective cylinder 3 is mounted on the electric mobile vehicle 1 via the lifting mechanism, which is used to raise and lower the protective cylinder 3. The guiding mechanism is mounted on the electric three-jaw chuck 2 and the protective cylinder 3, guiding the electric three-jaw chuck 2. The height adjustment mechanism is used to adjust the height of the electric three-jaw chuck 2. A miniature camera is installed at the lower part of the chamber of the protective cylinder 3. Connecting the miniature camera to a worker's camera allows monitoring of the lower part of the protective cylinder 3. During deep-hole blasting, the electric mobile vehicle 1 is first moved, which in turn moves the lifting mechanism and the protective cylinder 3, moving the protective cylinder 3 above the deep hole. Then, the device is... The lifting mechanism lowers the protective cylinder 3, which then descends into the deep hole, bringing its lower end into contact with the lower end of the hole. The upper end of the explosive charge 15 is then clamped by the electric three-jaw chuck 2. The height adjustment mechanism lowers the electric three-jaw chuck 2, which in turn lowers the explosive charge 15 until it reaches the lower end of the deep hole. The operator then remotely opens the electric three-jaw chuck 2, allowing the explosive charge 15 to fall to the bottom of the deep hole. The protective cylinder 3 and the electric three-jaw chuck 2 are then raised above the deep hole, and the operator remotely detonates the explosive charge 15. Because the electric three-jaw chuck 2 is guided by the guiding mechanism during descent, its swaying is reduced, thus minimizing the swaying of the explosive charge 15 and preventing collisions with the inner wall of the deep hole during deployment. This ensures high safety and reliability.
[0021] like Figure 3The lifting mechanism includes an electric slide rail 4, a lifting block 5, and a connecting plate 6. The electric slide rail 4 is fixedly installed on the electric mobile vehicle 1, and the lifting block 5 is installed on the electric slide rail 4. The electric slide rail 4 is used to lift the lifting block 5. The protective cylinder 3 is fixedly installed on the lifting block 5 through the connecting plate 6. When adjusting the height of the protective cylinder 3, the electric slide rail 4 is opened, and the electric slide rail 4 adjusts the height of the connecting plate 6 through the lifting block 5, thereby adjusting the height of the protective cylinder 3. This facilitates the adjustment of the height of the protective cylinder 3.
[0022] A rubber pad is provided in the inner wall of the protective cylinder 3, and a wear-resistant coating is provided on the outer wall of the protective cylinder 3. By providing a rubber pad in the inner wall of the protective cylinder 3, once the explosive charge 15 shakes in the protective cylinder 3, the explosive charge 15 comes into contact with the rubber pad, which reduces the instantaneous impulse of the explosive charge 15 during the collision and reduces the risk of the explosive charge 15 exploding. By providing a wear-resistant coating, the wear resistance of the protective cylinder 3 is improved, and the service life of the protective cylinder 3 is increased.
[0023] like Figure 3 , Figure 4 and Figure 5 The guiding mechanism includes two sets of slide rails 7, a lifting plate 8, and a lifting ring 9. The two sets of slide rails 7 are fixedly installed on the left and right sides of the inner wall of the protective cylinder 3, respectively. The lifting plate 8 is slidably installed on the two sets of slide rails 7. The lifting ring 9 is fixedly installed on the upper end of the lifting plate 8, and the electric three-jaw chuck 2 is fixedly installed on the lower end of the lifting plate 8. When the explosive charge 15 is dropped into the deep hole, the upper end of the explosive charge 15 is clamped and fixed by the electric three-jaw chuck 2. Then, the lifting ring 9 is lowered by the height adjustment mechanism. The lifting ring 9 drives the lifting plate 8 and the electric three-jaw chuck 2 to descend. The electric three-jaw chuck 2 drives the explosive charge 15 to descend. Since the lifting plate 8 is guided by the two sets of slide rails 7 during the descent, the lifting plate 8 is prevented from shaking, thereby preventing the electric three-jaw chuck 2 and the explosive charge 15 from shaking, reducing the risk of the explosive charge 15 shaking and improving reliability.
[0024] like Figure 2 , Figure 4 and Figure 5 The height adjustment mechanism includes a mounting plate 10, a winch 11, and a rope 12. The mounting plate 10 is fixedly mounted on the upper end of the electric slide rail 4, and the winch 11 is fixedly mounted on the upper end of the mounting plate 10. The rope 12 is provided on the winch 11, and the lower end of the rope 12 is tied and fixed to the lifting ring 9. When the electric three-jaw chuck 2 is lowered, the winch 11 is opened, and the winch 11 unwinds the rope 12, thereby lowering the lifting ring 9, the lifting plate 8, and the electric three-jaw chuck 2, and thus lowering the explosive charge 15 on the electric three-jaw chuck 2; this facilitates the deployment of the explosive charge 15.
[0025] like Figure 1It also includes a counterweight 13, which is fixedly installed on the left side of the upper part of the electric mobile vehicle 1. Through the above arrangement, the forces on the left and right sides of the electric mobile vehicle 1 are more balanced, thereby improving the stability of the electric mobile vehicle 1.
[0026] like Figure 1 It also includes a storage box 14, which is installed on the upper end of the counterweight 13; with the above configuration, some tools can be stored in the storage box 14, which improves convenience.
[0027] Example 2
[0028] Based on Example 1, a dust concentration detector is added to the electric mobile vehicle 1, which can detect the dust concentration in the air after the explosion, thus facilitating the monitoring of environmental quality.
[0029] The electric three-jaw chuck 2, electric slide rail 4, winch 11, rope 12 and counterweight 13 of the deep hole blasting device for open-pit mining of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A deep-hole blasting device for open-pit mining, comprising an electric mobile vehicle (1) and an electric three-jaw chuck (2); characterized in that, It also includes a protective cylinder (3), a lifting mechanism, a guiding mechanism and a height adjustment mechanism. The protective cylinder (3) has a chamber inside. Both the upper and lower ends of the protective cylinder (3) are open. The protective cylinder (3) is installed on the electric mobile vehicle (1) through the lifting mechanism. The lifting mechanism is used to lift the protective cylinder (3). The guiding mechanism is installed on the electric three-jaw chuck (2) and the protective cylinder (3). The guiding mechanism is used to guide the electric three-jaw chuck (2). The height adjustment mechanism is used to adjust the height of the electric three-jaw chuck (2).
2. The deep-hole blasting device for open-pit mining as described in claim 1, characterized in that, The lifting mechanism includes an electric slide rail (4), a lifting block (5) and a connecting plate (6). The electric slide rail (4) is fixedly installed on the electric mobile vehicle (1), the lifting block (5) is installed on the electric slide rail (4), the electric slide rail (4) is used to lift the lifting block (5), and the protective cylinder (3) is fixedly installed on the lifting block (5) through the connecting plate (6).
3. The deep-hole blasting device for open-pit mining as described in claim 2, characterized in that, The inner wall of the protective cylinder (3) is provided with a rubber pad, and the outer wall of the protective cylinder (3) is provided with a wear-resistant coating.
4. The deep-hole blasting device for open-pit mining as described in claim 2, characterized in that, The guiding mechanism includes two sets of slide rails (7), a lifting plate (8) and a lifting ring (9). The two sets of slide rails (7) are fixedly installed on the left and right sides of the inner side wall of the protective cylinder (3). The lifting plate (8) is slidably installed on the two sets of slide rails (7). The lifting ring (9) is fixedly installed on the upper end of the lifting plate (8). The electric three-jaw chuck (2) is fixedly installed on the lower end of the lifting plate (8).
5. A deep-hole blasting device for open-pit mining as described in claim 4, characterized in that, The height adjustment mechanism includes a mounting plate (10), a winch (11), and a rope (12). The mounting plate (10) is fixedly mounted on the upper end of the electric slide rail (4), and the winch (11) is fixedly mounted on the upper end of the mounting plate (10). A rope (12) is provided on the winch (11), and the lower end of the rope (12) is tied and fixed to the lifting ring (9).
6. The deep-hole blasting device for open-pit mining as described in claim 1, characterized in that, It also includes a counterweight (13), which is fixedly installed on the left side of the upper end of the electric mobile vehicle (1).
7. A deep-hole blasting device for open-pit mining as described in claim 6, characterized in that, It also includes a storage box (14), which is installed on the upper end of the counterweight (13).