A prefabricated charge device for directional blasting of an import slope

Abstract

The utility model relates to the technical field of blasting charging device discloses a prefabricated charging device of import side slope directional blasting, including frame and drive mechanism, the frame bottom four corners all are fixedly connected with the support leg, the support leg bottom all rotatoryly connected with universal wheel, the frame inner wall is rotatoryly connected with two winding discs of symmetry structure, the drive mechanism is used for driving two winding discs to rotate along opposite direction, and the installation gap is reserved between two winding discs, the winding disc outer wall is wound with the protective adhesive tape, two the side of relative close of protective adhesive tape all is equipped with the arc shape's sticky groove, and the protective adhesive tape is stuck in the charging bag outer wall. In the application, even if the protective adhesive tape appears partial breakage, also can not form the massive residual hindrance subsequent charging like bamboo chip, solves the problem of bamboo chip fracture residual.

Description

Technical Field

[0001] This utility model relates to the field of explosive charging device technology, and more specifically, to a prefabricated charging device for directional blasting of imported slopes. Background Technology

[0002] In rock and soil blasting projects such as slope excavation and tunnel excavation, it is usually necessary to load explosives into pre-drilled blast holes. To ensure blasting effectiveness and construction safety, the loading process requires that the explosive cartridges reach the designated position at the bottom of the blast hole smoothly and quickly, and the explosive bags must remain intact during the loading process to prevent explosive leakage.

[0003] In traditional blasting operations, to prevent the explosive charge bag from being blocked, jammed, or torn by the rock inside the borehole, long strips of bamboo are typically bound to the outer wall of the bag with tape. The bamboo strips, with their rigidity and strength, act as a supporting framework as the bag enters the borehole, resisting the pressure from the borehole wall and providing a relatively smooth sliding surface. This reduces resistance to the explosive charge, guiding the bag smoothly down and preventing it from being scratched by the borehole wall. However, during installation, each section of the explosive charge bag requires manual selection of bamboo strips, followed by comparison and binding, which is time-consuming. Furthermore, the bamboo strips are prone to breakage when encountering complex borehole conditions, and broken strips can remain in the borehole, hindering subsequent charging. Utility Model Content

[0004] This utility model provides a prefabricated charging device for imported slope directional blasting, which prevents the protective tape from becoming partially damaged and forming blocky residues that would hinder subsequent charging, unlike bamboo strips. This solves the problem of broken bamboo strip residues.

[0005] To achieve the above objectives, this utility model proposes a prefabricated charging device for directional blasting of imported slopes, which adopts the following technical solution: A prefabricated charge device for directional blasting of imported slopes includes a frame and a drive mechanism. Support legs are fixedly connected to the four corners of the frame's bottom, and casters are rotatably connected to the bottom of each support leg. Two winding reels are symmetrically connected to the inner wall of the frame. The drive mechanism drives the two winding reels to rotate in opposite directions. An installation gap is reserved between the two winding reels. Protective tape is wrapped around the outer wall of each winding reel, and arc-shaped adhesion grooves are provided on the relatively close sides of the two protective tapes, allowing the protective tapes to adhere to the outer wall of the charge bag.

[0006] The above technical solution releases protective tape by rotating two reels in opposite directions, which adheres to both sides of the explosive bag, replacing the traditional manual binding of bamboo strips. This avoids uneven loading resistance caused by intermittent support from bamboo strips. The protective tape has a certain rigidity and can serve as a supporting skeleton for the explosive bag, guiding it smoothly into the borehole and avoiding the breakage and residue problems caused by the traditional use of bamboo strips.

[0007] Preferably, the drive mechanism includes two spools and a drive member. The ends of the spools are fixedly connected to the ends of the take-up reels, and the ends of the spools pass through the frame and extend to its outer side. The drive member is used to drive the two spools to rotate. The drive mechanism also includes a plurality of first synchronous pulleys, wherein two of the first synchronous pulleys are fixedly connected to the ends of the two spools respectively.

[0008] Through the above technical solution, the fixed connection between the reel and the take-up reel ensures stable power transmission when the take-up reel rotates, avoiding uneven release speed of the protective tape. The cooperation between the first synchronous pulley and the synchronous belt enables the two reels to rotate synchronously in opposite directions, ensuring that the conveying speed of the protective tape on both sides is consistent and preventing misalignment when the medicine bags are attached.

[0009] Preferably, the driving component includes a base and a drive motor. The base is fixedly connected to the outer wall of the frame, the drive motor is fixedly connected to the top of the base, and the other two first synchronous pulleys are fixedly connected to the output end of the drive motor. The two first synchronous pulleys on the output end of the drive motor are respectively connected to the two first synchronous pulleys at the ends of the reel via synchronous belt transmission.

[0010] The above technical solution, with its design of four first synchronous pulleys, enables the drive motor to simultaneously drive two reels to rotate.

[0011] Preferably, two support arms are fixedly connected to both sides of the inner wall of the frame, and a concave roller and a convex roller are rotatably connected between the two support arms. The concave roller and the convex roller are respectively conveyed with the protective tape.

[0012] Through the above technical solution, the cooperation between the concave roller and the convex roller plays a guiding and tensioning role for the protective tape, preventing the protective tape from deviating during the conveying process, and also preventing the protective tape from sticking and closing prematurely.

[0013] Preferably, an extension shaft is fixedly connected to the end of the concave roller, the end of the extension shaft passes through the support arm and is rotatably connected to it, and a second synchronous pulley is fixedly connected to both the extension shaft and the outer wall of the roll circumference, and the two second synchronous pulleys are connected by a synchronous belt drive.

[0014] Through the above technical solution, the transmission between the second synchronous pulley and the synchronous belt enables the reel and the concave roller to work together, ensuring that the release speed of the protective tape matches the conveying speed and avoiding tape accumulation or tearing.

[0015] Preferably, a support plate is fixedly connected to the top of the frame, and the ends of the extension shaft are rotatably connected to the support plate.

[0016] The above technical solution enhances the stability of the extension shaft by supporting the end of the extension shaft with the support plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up two take-up reels and protective tape, the drive mechanism drives the two take-up reels to rotate in opposite directions, simultaneously releasing the protective tape and attaching it to both sides of the drug-filled bag. This avoids the time-consuming problem caused by manually selecting bamboo strips and binding them. The protective tape has a certain rigidity and can act as a support frame to guide the drug-filled bag to slide down. At the same time, its flexibility avoids the risk of bamboo strips breaking in complex hole conditions. Even if the protective tape is partially damaged, it will not form blocky residues that hinder subsequent drug loading like bamboo strips, thus solving the problem of broken bamboo strip residues.

[0018] 2. The fixed connection between the reel and the take-up reel ensures stable power transmission when the take-up reel rotates, avoiding uneven release speed of the protective tape. The cooperation between the first synchronous pulley and the synchronous belt enables the two reels to rotate synchronously in opposite directions, ensuring that the conveying speed of the protective tape on both sides is consistent and preventing misalignment when the medicine bags are attached.

[0019] 3. The cooperation between the concave roller and the convex roller plays a guiding and tensioning role for the protective tape, preventing deviation during the conveying process and preventing the protective tape from sticking and closing prematurely. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the winding reel of this utility model; Figure 3 This is a schematic diagram of the installation structure of the protective tape of this utility model; Figure 4 This is a schematic diagram of the structure of the concave roller and convex roller of this utility model.

[0021] In the diagram: 1. Frame; 2. Support legs; 3. Casters; 4. Base; 5. Drive motor; 6. Reel; 7. Take-up reel; 8. First synchronous pulley; 9. Support arm; 10. Concave roller; 11. Convex roller; 12. Protective tape; 13. Second synchronous pulley; 14. Extension shaft; 15. Adhesion groove; 16. Support plate. Detailed Implementation

[0022] 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.

[0023] like Figures 1-3 As shown, a prefabricated charge device for directional blasting of imported slopes includes a frame 1 and a drive mechanism. Support legs 2 are fixedly connected to the four corners of the bottom of the frame 1, and casters 3 are rotatably connected to the bottom of each support leg 2. Two winding reels 7 are rotatably connected to the inner wall of the frame 1 in a symmetrical structure. The drive mechanism drives the two winding reels 7 to rotate in opposite directions. An installation gap is reserved between the two winding reels 7. Protective tape 12 is wrapped around the outer wall of the winding reels 7. Arc-shaped adhesion grooves 15 are provided on the relatively close sides of the two protective tapes 12, adhering to the outer wall of the charge bag. The protective tape 12 is released by the counter-rotation of the two winding reels 7, adhering to both sides of the charge bag, replacing the traditional manual binding of bamboo strips. This avoids uneven charging resistance caused by intermittent support from bamboo strips. The protective tape 12 has a certain rigidity and can serve as a supporting skeleton for the charge bag, guiding it smoothly into the blast hole and avoiding the breakage and residue problems caused by traditional bamboo strips.

[0024] like Figure 2 and Figure 3 As shown, the drive mechanism includes two spools 6 and a drive component. The ends of the spools 6 are fixedly connected to the ends of the take-up reel 7, and the ends of the spools 6 pass through the frame 1 and extend to its outer side. The drive component is used to drive the two spools 6 to rotate. The drive mechanism also includes multiple first synchronous pulleys 8, two of which are fixedly connected to the ends of the two spools 6. The fixed connection between the spools 6 and the take-up reel 7 ensures stable power transmission when the take-up reel 7 rotates, avoiding uneven release speed of the protective tape 12. The cooperation between the first synchronous pulleys 8 and the synchronous belt enables the two spools 6 to rotate synchronously in opposite directions, ensuring that the conveying speed of the protective tape 12 on both sides is consistent and preventing misalignment when the medicine bags are attached.

[0025] like Figure 2 As shown, the driving component includes a base 4 and a drive motor 5. The base 4 is fixedly connected to the outer wall of the frame 1, and the drive motor 5 is fixedly connected to the top of the base 4. Two additional first synchronous pulleys 8 are fixedly connected to the output end of the drive motor 5. The two first synchronous pulleys 8 at the output end of the drive motor 5 are respectively connected to the first synchronous pulleys 8 at the ends of the two reels 6 via synchronous belt transmission. The design of four first synchronous pulleys 8 allows the drive motor 5 to simultaneously drive the two reels 6 to rotate.

[0026] like Figures 2-4As shown, two support arms 9 are fixedly connected to both sides of the inner wall of the frame 1. A concave roller 10 and a convex roller 11 are rotatably connected between the two support arms 9. The concave roller 10 and the convex roller 11 respectively convey the protective tape 12. The cooperation between the concave roller 10 and the convex roller 11 guides and tensions the protective tape 12, preventing the protective tape 12 from deviating during the conveying process, and also preventing the protective tape 12 from sticking and closing prematurely.

[0027] like Figure 3 and Figure 4 As shown, an extension shaft 14 is fixedly connected to the end of the concave roller 10. The end of the extension shaft 14 passes through the support arm 9 and is rotatably connected to it. A second synchronous pulley 13 is fixedly connected to the outer circumference of both the extension shaft 14 and the reel 6. The two second synchronous pulleys 13 are connected by a synchronous belt drive. The drive between the second synchronous pulleys 13 and the synchronous belt makes the reel 6 and the concave roller 10 work together to ensure that the release speed of the protective tape 12 matches the conveying speed, thus preventing tape accumulation or tearing.

[0028] like Figure 2 As shown, a support plate 16 is fixedly connected to the top of the frame 1, and the ends of the extension shaft 14 are rotatably connected to the support plate 16. The support plate 16 supports the ends of the extension shaft 14, enhancing the stability of the extension shaft 14 during rotation.

[0029] The protective tape 12 is made of conductive nitrile rubber, which can ensure that static charge is slowly and safely discharged, avoiding instantaneous discharge and sparks. At the same time, it has good wear resistance, flexibility and certain strength, and can withstand friction and stretching during wrapping and construction. The adhesive layer on the protective tape 12 is a conductive pressure-sensitive adhesive.

[0030] The implementation principle of this application is as follows: the medicine bag is passed through the installation gap between the two take-up reels 7, the medicine bag is adhered to the adhesive in the adhesion groove 15, the drive motor 5 is started, its output end drives the two first synchronous pulleys 8 to rotate, and drives the first synchronous pulleys 8 on the two reels 6 to rotate through the synchronous belt.

[0031] Two spools 6 rotate in opposite directions, and the spools 6 drive the take-up reel 7 to rotate synchronously. Under the weight of the medicine bag, the take-up reel 7 releases the protective tape 12 wrapped around the outer wall. At the same time, the spools 6 drive the extension shaft 14 to rotate through the second synchronous wheel 13 and the synchronous belt. The extension shaft 14 drives the concave roller 10 to rotate. The concave roller 10 cooperates with the convex roller 11 to guide and convey the protective tape 12, so that the protective tape 12 released by the two take-up reels 7 moves synchronously.

[0032] The two protective tapes 12 are positioned so that their relatively close sides contact the outer wall of the medicine bag. The adhesive grooves 15 of the protective tapes 12 adhere to the surface of the medicine bag, and the tapes are fixed to the medicine bag by their own adhesiveness. As the protective tapes 12 are continuously conveyed, the two protective tapes 12 are wrapped around the medicine bag from both sides, forming a protective structure for the medicine bag. After the bonding is completed, the protective tapes 12 are cut to obtain a prefabricated medicine bag with a protective layer.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pre-fabricated charge device for directional blasting of imported slopes, comprising a frame (1) and a drive mechanism, characterized in that: The inner wall of the frame (1) has two winding reels (7) rotatably connected in a symmetrical structure. The driving mechanism is used to drive the two winding reels (7) to rotate in opposite directions. An installation gap is reserved between the two winding reels (7). The outer wall of the winding reel (7) is wrapped with protective tape (12). The two protective tapes (12) are provided with arc-shaped adhesive grooves (15) on the relatively close side. The protective tapes (12) are adhered to the outer wall of the medicine bag.

2. The pre-charge device for directional blasting of imported slopes according to claim 1, characterized in that: The drive mechanism includes two spools (6) and a drive member. The ends of the spools (6) are fixedly connected to the ends of the take-up reel (7). The ends of the spools (6) pass through the frame (1) and extend to its outer side. The drive member is used to drive the two spools (6) to rotate.

3. The pre-charge device for directional blasting of imported slopes according to claim 2, characterized in that: The drive mechanism also includes a plurality of first synchronous pulleys (8), wherein two of the first synchronous pulleys (8) are fixedly connected to the ends of two reels (6).

4. The pre-charge device for directional blasting of imported slopes according to claim 3, characterized in that: The driving component includes a base (4) and a drive motor (5). The base (4) is fixedly connected to the outer wall of the frame (1). The drive motor (5) is fixedly connected to the top of the base (4). The other two first synchronous pulleys (8) are fixedly connected to the output end of the drive motor (5). The two first synchronous pulleys (8) on the output end of the drive motor (5) are respectively connected to the first synchronous pulleys (8) at the ends of the two reels (6) via synchronous belt transmission.

5. The pre-charge device for directional blasting of imported slopes according to claim 4, characterized in that: Two support arms (9) are fixedly connected to both sides of the inner wall of the frame (1). A concave roller (10) and a convex roller (11) are rotatably connected between the two support arms (9). The concave roller (10) and the convex roller (11) are respectively conveyed by the protective tape (12).

6. The pre-charge device for directional blasting of imported slopes according to claim 5, characterized in that: The end of the concave roller (10) is fixedly connected to an extension shaft (14), the end of the extension shaft (14) passes through the support arm (9) and is rotatably connected to it, and the outer circumference of the extension shaft (14) and the roller (6) are both fixedly connected to a second synchronous pulley (13), and the two second synchronous pulleys (13) are connected by a synchronous belt drive.

7. The pre-charge device for directional blasting of imported slopes according to claim 6, characterized in that: The top of the frame (1) is fixedly connected to a support plate (16), and the ends of the extension shaft (14) are rotatably connected to the support plate (16).

8. The pre-charge device for directional blasting of imported slopes according to claim 7, characterized in that: The frame (1) is fixedly connected to four corners of the bottom with legs (2), and the bottom of each leg (2) is rotatably connected with casters (3).

Images