Pre-splitting blasting energy-gathered cutting guide structure for surface mine side slope

Abstract

The utility model relates to the technical field of blasting guiding, in particular to a surface mine slope presplitting blasting energy-gathered cutting guiding structure which comprises a fixing frame, anchor rods are inserted into the two sides of the bottom of the fixing frame, a rotating frame is rotationally connected to the middle of the top of the fixing frame, and an adjusting box is fixedly connected to the bottom of a top plate of the fixing frame. And a fastening assembly is slidably connected to the left side of the inner wall of the rotating frame, an energy-gathered blasting bomb is arranged in the fastening assembly, an adjusting mechanism is arranged in the adjusting box, and a pushing mechanism is arranged on the right side of the interior of the rotating frame. According to the device, rotation adjustment of the rotating frame and pushing of the fastening assembly are achieved, and convenience and adjustability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of blasting guidance technology, specifically a pre-splitting blasting energy-concentrated cutting guidance structure for open-pit mine slopes. Background Technology

[0002] In open-pit mining, slope stability becomes increasingly critical as mining depth and scale expand. Pre-splitting blasting, by pre-forming a crack along the slope's contour line, effectively controls the propagation of blasting stress waves, reduces damage to the slope rock mass, lowers the risk of slope instability, and ensures safe mine production. Shaped charge cutting guide structures concentrate the energy generated by the explosive detonation in a specific direction, allowing the energy to act more effectively on the pre-splitting surface, improving energy utilization, reducing explosive usage, and lowering blasting costs.

[0003] Existing devices primarily use fastening components to secure the shaped charge explosive to a support component. Many existing technologies resemble a shaped charge cutting guide structure for pre-splitting blasting in open-pit mine slopes. The structure, with publication number CN222048769U, includes a support component, an adjustment component, and a connecting component. The adjustment component is located in the middle of the support component, and the connecting component is located in the middle of the adjustment component. This open-pit mine slope pre-splitting blasting shaped charge cutting guide structure prevents the detonator frame from moving, and the detonator is fixed by the frame to ensure the shaped charge cutting angle. However, this device still has areas for improvement.

[0004] Existing devices mainly fix the support components near the blasting holes on the slope, making it difficult for some devices to rotate the orientation of the frame after anchoring, thus making it inconvenient to place the rotating frame at the predetermined blasting point. At the same time, some devices have difficulty pushing the shaped charge explosive to the predetermined blasting point, making it difficult to accurately control the shaped charge cutting angle of the explosive, reducing the working efficiency and practicality of the device. Therefore, in order to solve the above problems, a shaped charge cutting guide structure for pre-splitting blasting of open-pit mine slopes is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a guide structure for pre-splitting blasting and shaped charge cutting of open-pit mine slopes, in order to solve the problem mentioned in the background art that the existing devices mainly fix the support components near the blasting hole of the slope, making it difficult for some devices to rotate the orientation of the frame after anchoring and fixing the frame, thus making it inconvenient to place the rotating frame at the predetermined blasting point. At the same time, some devices have difficulty pushing the shaped charge explosive to the predetermined blasting point, thus making it difficult to accurately control the shaped charge cutting angle of the explosive.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pre-splitting blasting energy-concentrated cutting guide structure for open-pit mine slopes, comprising a fixed frame, anchor rods inserted on both sides of the bottom of the fixed frame, a rotating frame rotatably connected to the top center of the fixed frame, an adjusting box fixedly connected to the bottom of the top plate of the fixed frame, a fastening assembly slidably connected to the left side of the inner wall of the rotating frame, and an energy-concentrated explosive shell disposed inside the fastening assembly;

[0007] The regulating box is equipped with an regulating mechanism, which includes a transmission worm gear. The left end of the transmission worm gear is movably connected to the left side of the inner wall of the regulating box. The rotating frame is equipped with a pushing mechanism on the right side. The pushing mechanism includes a pushing screw, and the left side of the pushing screw is fixedly connected to the middle right side of the fastening assembly.

[0008] Preferably, the right end of the transmission worm passes through the adjustment box and is fixedly connected to a first torsion cover, and a transmission worm wheel is meshed with the front side of the outer wall of the transmission worm.

[0009] Preferably, a rotating shaft is fixedly connected to the inner wall of the transmission worm gear, the bottom end of the rotating shaft is movably connected to the lower inner wall of the adjusting box, and the top end of the rotating shaft passes through the top plate of the fixing frame and is fixedly connected to the main gear.

[0010] Preferably, an internal gear is meshed with the front side of the outer wall of the main gear, and the top of the internal gear is fixedly connected to the bottom right side of the rotating frame.

[0011] Preferably, a movable screw is threadedly connected to the right side of the inner wall of the pusher screw barrel, the right end of the movable screw is movably connected to the right side of the inner wall of the rotating frame, and a second bevel gear is fixedly connected to the right side of the outer wall of the movable screw.

[0012] Preferably, the front side of the second bevel gear is meshed with the first bevel gear, and the front middle of the first bevel gear is fixedly connected to a drive shaft. The front end of the drive shaft passes through the front side wall of the rotating frame and is fixedly connected to a second twist cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the adjustment mechanism including the transmission worm, first twist cover, transmission worm wheel, rotating shaft, main gear, and internal gear, achieves rotational adjustment of the rotating frame by rotating the first twist cover to drive the transmission worm to rotate in a limited position. The transmission worm meshes with and drives the transmission worm wheel, rotating shaft, and main gear to rotate in a limited position. The main gear meshes with and drives the internal gear and rotating frame to rotate in a limited position. This allows for the adjustment of the rotating frame's orientation after the anchoring and fixing frame is in place, facilitating the placement of the rotating frame at the predetermined explosion point and improving the convenience and practicality of the device.

[0015] 2. This utility model utilizes a pushing mechanism comprising a pushing screw, a movable screw, a second bevel gear, a first bevel gear, a transmission shaft, and a second twist cover. By rotating the second twist cover, the transmission shaft is limited to a certain rotation, which in turn drives the first bevel gear to a certain rotation. The first bevel gear meshes with and drives the second bevel gear to rotate, which in turn drives the movable screw to a certain rotation. The movable screw then causes the pushing screw to slide left and right, which in turn causes the fastening assembly to slide to a certain position. This enables the fastening assembly to be pushed, allowing some devices to push shaped charge projectiles to a predetermined detonation point. This facilitates precise control of the shaped charge cutting angle of the projectile and improves the adjustability and practicality of the device. Attached Figure Description

[0016] Figure 1 This is a front side perspective view of the structure of this utility model;

[0017] Figure 2 This is a frontal sectional perspective view of the structure of this utility model;

[0018] Figure 3 This is a front sectional perspective view of a partial structure of the regulating box and regulating mechanism of this utility model;

[0019] Figure 4 This is a top sectional perspective view of a portion of the rotating frame and pushing mechanism of this utility model.

[0020] In the diagram: 11. Fixed frame; 12. Anchor bolt; 13. Rotating frame; 14. Adjusting box; 15. Fastening assembly; 16. shaped charge explosive; 2. Adjusting mechanism; 21. Transmission worm gear; 22. First twist cover; 23. Transmission worm wheel; 24. Rotating shaft; 25. Main gear; 26. Internal gear; 3. Pushing mechanism; 31. Pushing screw; 32. Movable screw; 33. Second bevel gear; 34. First bevel gear; 35. Transmission shaft; 36. Second twist cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 One embodiment provided by this utility model:

[0023] A pre-splitting blasting and shaped charge cutting guide structure for open-pit mine slope includes a fixed frame 11, with anchor rods 12 inserted on both sides of the bottom of the fixed frame 11, a rotating frame 13 rotatably connected to the top center of the fixed frame 11, an adjusting box 14 fixedly connected to the bottom of the top plate of the fixed frame 11, and a fastening component 15 slidably connected to the left side of the inner wall of the rotating frame 13, with a shaped charge explosive blast 16 inside the fastening component 15.

[0024] The regulating box 14 is equipped with an regulating mechanism 2, which includes a transmission worm 21. The left end of the transmission worm 21 is movably connected to the left side of the inner wall of the regulating box 14, and the right end of the transmission worm 21 passes through the regulating box 14 and is fixedly connected to a first twist cover 22. A transmission worm wheel 23 is meshed with the front side of the outer wall of the transmission worm 21. Through this design, the first twist cover 22 drives the transmission worm 21 to rotate in a limited position, so that the transmission worm 21 meshes with and drives the transmission worm wheel 23 to rotate. The inner wall of the transmission worm wheel 23 is fixedly connected to a rotating... The bottom end of the rotating shaft 24 is movably connected to the lower inner wall of the regulating box 14. The top end of the rotating shaft 24 passes through the top plate of the fixed frame 11 and is fixedly connected to the main gear 25. Through this design, the transmission worm gear 23 drives the rotating shaft 24 and the main gear 25 to rotate in a limited position. The front side of the outer wall of the main gear 25 is meshed with the inner gear 26. The top of the inner gear 26 is fixedly connected to the bottom right side of the rotating frame 13. Through this design, the main gear 25 meshes and drives the inner gear 26 and the rotating frame 13 to rotate in a limited position.

[0025] A pushing mechanism 3 is provided on the right side of the interior of the rotating frame 13. The pushing mechanism 3 includes a pushing screw 31. The left side of the pushing screw 31 is fixedly connected to the middle right side of the fastening assembly 15. A movable screw 32 is threadedly connected to the right side of the inner wall of the pushing screw 31. The right end of the movable screw 32 is movably connected to the right side of the inner wall of the rotating frame 13. A second bevel gear 33 is fixedly connected to the right side of the outer wall of the movable screw 32. Through this design, the second bevel gear 33 drives the movable screw 32 to rotate in a limited position, so that the movable screw 32... The push screw 31 and fastening assembly 15 slide left and right. The front side of the second bevel gear 33 is meshed with the first bevel gear 34. The front middle of the first bevel gear 34 is fixedly connected to the drive shaft 35. The front end of the drive shaft 35 passes through the front side wall of the rotating frame 13 and is fixedly connected to the second twist cover 36. Through this design, the second twist cover 36 drives the drive shaft 35 and the first bevel gear 34 to rotate in a limited position, so that the first bevel gear 34 meshes with and drives the second bevel gear 33 and the movable screw 32 to rotate.

[0026] Working principle: When it is necessary to adjust the rotation of the rotating frame 13, the first twist cover 22 is rotated first. The first twist cover 22 drives the transmission worm 21 to rotate in a limited position. The transmission worm 21 meshes and drives the transmission worm wheel 23 to rotate. The transmission worm wheel 23 drives the rotating shaft 24 to rotate in a limited position. The rotating shaft 24 drives the main gear 25 to rotate synchronously. The main gear 25 meshes and drives the internal gear 26 to rotate. The internal gear 26 drives the rotating frame 13 to rotate in a limited position, thus realizing the rotation adjustment operation of the rotating frame 13.

[0027] When it is necessary to push the fastening assembly 15, firstly, the second twist cover 36 is rotated. The second twist cover 36 drives the transmission shaft 35 to rotate in a limited position. The transmission shaft 35 drives the first bevel gear 34 to rotate in a limited position. The first bevel gear 34 meshes and drives the second bevel gear 33 to rotate. The second bevel gear 33 drives the movable screw 32 to rotate in a limited position. The movable screw 32 drives the push screw 31 to slide left and right. The push screw 31 drives the fastening assembly 15 to slide in a limited position, thus realizing the pushing operation of the fastening assembly 15. The operation ends here.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A guide structure for pre-splitting blasting and shaped charge cutting of open-pit mine slopes, comprising a fixing frame (11), characterized in that: Anchor rods (12) are inserted on both sides of the bottom of the fixed frame (11). A rotating frame (13) is rotatably connected to the top center of the fixed frame (11). An adjusting box (14) is fixedly connected to the bottom of the top plate of the fixed frame (11). A fastening assembly (15) is slidably connected to the left side of the inner wall of the rotating frame (13). A shaped charge explosive (16) is provided inside the fastening assembly (15). The adjustment box (14) is provided with an adjustment mechanism (2) inside. The adjustment mechanism (2) includes a transmission worm gear (21). The left end of the transmission worm gear (21) is movably connected to the left side of the inner wall of the adjustment box (14). The rotating frame (13) is provided with a pushing mechanism (3) inside the right side. The pushing mechanism (3) includes a pushing screw (31). The left side of the pushing screw (31) is fixedly connected to the middle right side of the fastening assembly (15).

2. The pre-splitting blasting shaped charge cutting guide structure for open-pit mine slopes according to claim 1, characterized in that: The right end of the transmission worm (21) passes through the adjustment box (14) and is fixedly connected to the first twist cover (22). The front side of the outer wall of the transmission worm (21) is meshed with a transmission worm wheel (23).

3. The pre-splitting blasting shaped charge cutting guide structure for open-pit mine slopes according to claim 2, characterized in that: The inner wall of the transmission worm gear (23) is fixedly connected to a rotating shaft (24), the bottom end of the rotating shaft (24) is movably connected to the lower inner wall of the regulating box (14), and the top end of the rotating shaft (24) passes through the top plate of the fixing frame (11) and is fixedly connected to a main gear (25).

4. The pre-splitting blasting shaped charge cutting guide structure for open-pit mine slopes according to claim 3, characterized in that: The outer wall of the main gear (25) is meshed with an internal gear (26), and the top of the internal gear (26) is fixedly connected to the bottom right side of the rotating frame (13).

5. The pre-splitting blasting shaped charge cutting guide structure for open-pit mine slopes according to claim 1, characterized in that: The inner wall of the pusher screw (31) is threaded with a movable screw (32), the right end of which is movably connected to the inner wall of the rotating frame (13), and a second bevel gear (33) is fixedly connected to the outer wall of the movable screw (32).

6. The pre-splitting blasting shaped charge cutting guide structure for open-pit mine slopes according to claim 5, characterized in that: The front side of the second bevel gear (33) is meshed with the first bevel gear (34), and the front middle of the first bevel gear (34) is fixedly connected to the drive shaft (35). The front end of the drive shaft (35) passes through the front side wall of the rotating frame (13) and is fixedly connected to the second twist cover (36).

Images