Blasting explosive filling mechanism for strip mine field
By designing the blasting explosive filling mechanism in open-pit mines, using the combination of storage tanks, weighing components and control components, the problem of inefficient explosive filling efficiency in mine blasting is solved, and the effect of automatic filling and accurate dosage is achieved.
Patent Information
- Application Number
- CN202422382461.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-29
AI Technical Summary
During the blasting of existing mines, there are still a lot of manual operations in explosive filling, resulting in inefficiency and waste of manpower and material resources.
A open-pit mine blasting explosive filling mechanism is designed, including storage tanks, weighing components and control components. The storage tank is driven to move through the vehicle, and the explosives are automatically filled with discharge pipes and valves, and the explosives are accurately controlled through the weighing components.
It realizes the automation of explosive filling, improves work efficiency, reduces manual operations, and ensures the accuracy and safety of explosive usage.
Smart Images
Figure CN222993603U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of mine blasting, and particularly relates to a blasting explosive filling mechanism for open-pit mines. Background Technique
[0002] Mineral resources, as an important material basis for supporting economic development, provide important support for the country's infrastructure construction. Their development and utilization play a crucial role in social development. In reality, the types of ore and rock are complex and diverse, including hard rock, soft rock, fracture zones, etc. This requires scientific and reasonable mining methods, among which ore and rock blasting is one of the key processes in resource extraction.
[0003] Blasting can break large pieces of ore and rock into sizes suitable for loading and transportation, thus ensuring the smooth progress of the production process. Before blasting the ore and rock, it is necessary to complete drilling and filling explosives at designated positions. At present, there is still a large amount of manual operation in filling explosives into the explosive holes, which wastes manpower and material resources and is slow. Improving work efficiency has become an urgent task. Content of the Utility Model
[0004] The purpose of the utility model is to provide a blasting explosive filling mechanism for open-pit mines to solve the technical problems raised in the above background technique.
[0005] To achieve the above purpose, the specific technical solution of a blasting explosive filling mechanism for open-pit mines of the utility model is as follows:
[0006] A blasting explosive filling mechanism for open-pit mines includes a storage tank. A fixing frame connected to a vehicle is provided on the storage tank. A discharge pipe is communicated with the bottom end of the storage tank. A valve for intercepting materials is provided on the discharge pipe. A weighing assembly is provided on the storage tank. A measuring cylinder slides in the weighing assembly. The top end of the measuring cylinder is communicated with the discharge pipe through a flexible connection. A control valve for discharging materials in the measuring cylinder is provided in the measuring cylinder. The fixing frame includes rib plates provided on the outer wall of the storage tank. Installation plates are provided at both ends of the rib plates. Installation holes are opened on the installation plates. Bolts pass through the installation holes and are connected to the vehicle.
[0007] Further, the weighing assembly includes hoisting plates symmetrically arranged with the center of the storage tank as the center. The measuring cylinder is located between the two hoisting plates. A first support arm extending inward is provided at the bottom end of the hoisting plate. A weighing device is provided at the top end of the first support arm. Guide grooves are opened on the inner walls of the hoisting plates. An outward convex plate slides in the guide grooves. The measuring cylinder is arranged between the two outward convex plates and is connected to them. The outward convex plate cooperates with its corresponding weighing device. The two sides of the two first support arms are connected by arc-shaped plates, and the arc-shaped plates are located outside the measuring cylinder.
[0008] Further, a sliding groove is formed in the lifting plate, an inclined groove is formed in the convex plate, a limiting component matched with the inclined groove is arranged on the lifting plate, and the limiting component includes an inclined block slidably arranged in the sliding groove and matched with the inclined groove. A driving device for driving the inclined block to move is arranged on the side wall of the lifting plate below the inclined block, and the driving device is connected with the inclined block.
[0009] Further, a plurality of tooth holes are uniformly distributed on the bottom surface of the inclined block. Two second arms are arranged in parallel on the side wall of the lifting plate. The two second arms are located below the inclined block. A first rotating shaft is rotatably arranged between the two second arms. A first gear is arranged on the first rotating shaft, and the first gear meshes with the tooth holes. A motor is arranged on the side wall of the second arm below the second arm, and the motor is connected with the first rotating shaft through a transmission part.
[0010] Further, the transmission part includes a worm arranged at the output end of the motor and a worm wheel arranged on the first rotating shaft, and the worm wheel meshes with the worm.
[0011] Further, the control valve includes a second rotating shaft rotatably arranged in the middle and lower part of the measuring cylinder in a centrosymmetric manner with respect to the center of the measuring cylinder, and a control component for driving the second rotating shaft to rotate. The second rotating shaft is arranged along the radial direction of the measuring cylinder. A throttle plate is arranged on the second rotating shaft inside the measuring cylinder, and the two throttle plates are symmetrically arranged.
[0012] Further, an electric push rod is arranged at the bottom end of the storage tank corresponding to the position of the lifting plate, and the lifting plate is connected with the telescopic end of the corresponding electric push rod. The second rotating shaft penetrates through the measuring cylinder and extends outwards. The control component includes a second gear arranged at the extending end of the second rotating shaft, a guard ring slidably arranged outside the measuring cylinder, a spring is arranged between the guard ring and the first arm, and a rack is arranged on the top surface of the guard ring, and the rack meshes with the gear.
[0013] Further, a guide plate is arranged on the bottom surface of the storage tank outside the electric push rod, and a slider is arranged on the outer wall of the lifting plate, and the guide plate and the slider are slidably arranged.
[0014] Further, connecting frames connected with the fixing frame are symmetrically arranged on the outer wall of the storage tank with respect to its center. The connecting frame includes a fixing block arranged on the outer wall of the storage tank. A first rib plate is arranged on the fixing block. A second rib plate is arranged on the first rib plate. The free end of the first rib plate is connected with the mounting plate above the fixing frame, and the second rib plate is connected with the mounting plate below the fixing frame.
[0015] The blasting explosive filling mechanism for open-pit mines of the present utility model has the following advantages:
[0016] 1. By arranging the storage tank in the present utility model, the explosive can be poured into the storage tank, and then the storage tank is installed on the vehicle, and the vehicle drives the storage tank to move. The vehicle drives the storage tank to move and aligns the measuring cylinder with the explosive hole. By opening the valve, the explosive in the storage tank can be filled into the explosive hole, which is time-saving, labor-saving, simple in operation and convenient to use.
[0017] 2. The utility model is provided with a weighing component, which can set the dosage of explosive filled in the explosive hole according to the actual situation and weigh it through the weighing component to blast ores with appropriate sizes.
[0018] 3. Through the protective ring on the control component, the utility model can protect and block the explosive hole to prevent the entry of dust and crushed stones when filling explosives. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural diagram of a blasting explosive filling mechanism for open-pit mines of the utility model;
[0020] Figure 2 is a schematic diagram of the weighing component of the utility model;
[0021] Figure 3 is a schematic diagram of the limiting component of the utility model;
[0022] Figure 4 is a schematic diagram of the control component of the utility model.
[0023] Description of the marks in the figure:
[0024] 1. Storage tank; 2. Fixed frame; 21. Rib plate; 22. Mounting plate; 23. Mounting hole; 3. Connecting frame; 31. Fixed block; 32. First rib plate; 33. Second rib plate; 4. Discharge pipe; 5. Measuring cylinder; 6. Bourdon tube; 7. Weighing component; 71. Lifting plate; 72. First arm; 73. Outer convex plate; 731. Inclined groove; 74. Weighing device; 75. Guide groove; 8. Guide plate; 9. Slide block; 10. Slide groove; 11. Limiting component; 111. Inclined block; 112. Second arm; 113. First rotating shaft; 114. First gear; 115. Tooth hole; 116. Motor; 117. Worm; 118. Worm gear; 12. Second rotating shaft; 121. Shut-off plate; 13. Control component; 131. Second gear; 132. Rack; 133. Protective ring; 134. Spring; 14. Arc plate; 15. Valve; 16. Electric push rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] In order to better understand the purpose, structure and function of the utility model, the following further describes in detail a blasting explosive filling mechanism for open-pit mines of the utility model with reference to the drawings.
[0026] As Figures 1 to 4As shown in the figure, a blasting explosive filling mechanism for an open-pit mine of the utility model includes a storage tank 1 for containing explosives. A fixing frame 2 connected to a vehicle is provided on one side of the storage tank 1 so that the vehicle can drive the storage tank 1 to move. A discharge pipe 4 is also connected to the bottom end of the storage tank 1, and a valve 15 for stopping the material is provided on the discharge pipe 4. This valve 15 is an electronic valve 15, and the valve 15 is electrically connected to the cab of the vehicle, thus facilitating the driver to control the valve 15. Among them, the middle and lower part of the storage tank 1 is arranged in a conical shape with the upper part larger and the lower part smaller to facilitate the convergence of explosives at the bottom of the storage tank 1. The discharge pipe 4 connected to the storage tank 1 is specifically connected to the middle of the bottom end of the storage tank 1, which is convenient for the explosives in the storage tank 1 to be discharged through the discharge pipe 4 after the valve 15 is opened. At the same time, the middle and lower part of the storage tank 1 is arranged in a conical shape, which can prevent the residue of explosives in the storage tank 1 and save the process and time of manual cleaning of the storage tank 1.
[0027] Specifically, the fixing frame 2 includes rib plates 21 provided on the outer wall of the storage tank 1. The rib plates 21 are arranged along the axis of the storage tank 1. Mounting plates 22 are vertically provided at both ends of the rib plates 21, and mounting holes 23 are opened on the mounting plates 22. Bolts pass through the mounting holes 23 and are connected to the vehicle. In order to increase the connection strength between the storage tank 1 and the vehicle, connection frames 3 connected to the fixing frame 2 are symmetrically provided on the outer wall of the storage tank 1 with its center. The connection frames 3 are arranged parallel to the rib plates 21 and are located outside the rib plates 21. Specifically, the connection frame 3 includes fixing blocks 31 provided on the outer wall of the storage tank 1. First rib plates 32 are provided on the fixing blocks 31, and second rib plates 33 are provided on the first rib plates 32. Among them, the first rib plate 32 is inclined with respect to the fixing block 31, and the second rib plate 33 is inclined with respect to the first rib plate 32. The free end of the first rib plate 32 is connected to the mounting plate 22 above the fixing frame 2, and the second rib plate 33 is connected to the mounting plate 22 below the fixing frame 2.
[0028] In order to accurately understand the feeding amount of the discharge pipe 4, as Figure 1 and Figure 2 shown, a weighing assembly 7 is also provided on the storage tank 1. A measuring cylinder 5 slides up and down in the weighing assembly 7. There is a gap between the top end of the measuring cylinder 5 and the bottom end of the discharge pipe 4, that is, the top end of the measuring cylinder 5 is connected to the discharge pipe 4 through a flexible connection. A control valve for discharging the material inside is also provided in the middle and lower part of the measuring cylinder 5. By setting the weighing assembly 7, the dosage of explosives filled into the explosive holes can be set according to the actual situation and weighed by the weighing assembly 7 to blast ores of appropriate sizes, improving the practicability of the filling mechanism. Specifically, the flexible connection between the top end of the measuring cylinder 5 and the discharge pipe 4 is a bellows 6. Of course, it can also be a curtain cloth, and no more restrictions are made here.
[0029] Specifically, the weighing component 7 includes a lifting plate 71 symmetrically arranged with respect to the center of the storage tank 1. The measuring cylinder 5 is located between the two lifting plates 71. At the bottom end of the lifting plate 71, a first arm 72 extending inward is further provided. A weighing device 74 is provided at the top end of the first arm 72. A guide groove 75 is also formed in the inner wall of each lifting plate 71, and an outward convex plate 73 is slidably arranged in the guide groove 75. The measuring cylinder 5 is arranged between the two outward convex plates 73 and is connected thereto. The measuring cylinder 5 cooperates with the corresponding weighing device 74 through the outward convex plate 73, so as to complete the weighing work of the weighing device 74 on the measuring cylinder 5. Among them, the weighing device 74 is electrically connected to the valve 15 on the discharge pipe 4. When the valve 15 on the discharge pipe 4 is opened, the explosive in the storage tank 1 falls into the measuring cylinder 5 through the discharge pipe 4. Then, the weighing device 74 will weigh the explosive falling into the measuring cylinder 5. After the weighed amount reaches the set value, the weighing device 74 will send a signal to the valve 15 to control the valve 15 to close, so as to achieve the purpose of intercepting the material in the discharge pipe 4. As Figure 2 shown, in order to increase the stability of the lifting plate 71, the two sides of the two first arms 72 are connected by an arc-shaped plate 14, and the arc-shaped plate 14 is located outside the measuring cylinder 5.
[0030] Preferably, a chute 10 is formed in the lifting plate 71, an inclined groove 731 is formed in the outward convex plate 73, and a limiting component 11 matching the inclined groove 731 is arranged on the lifting plate 71. As Figure 3As shown in the figure, the limit component 11 includes an inclined block 111 slidably arranged in the chute 10 and cooperating with the inclined groove 731. A driving device for driving the inclined block 111 to move is provided below the inclined block 111 on the side wall of the hoisting plate 71, and the driving device is connected to the inclined block 111. The driving device includes a plurality of tooth holes 115 uniformly distributed on the bottom surface of the inclined block 111, and two second support arms 112 arranged in parallel on the side wall of the hoisting plate 71, and the two second support arms 112 are located below the inclined block 111. A first rotating shaft 113 is rotatably arranged between the two second support arms 112, and a first gear 114 is arranged on the first rotating shaft 113. The first gear 114 meshes with the tooth holes 115 on the bottom surface of the inclined block 111. At the same time, a motor 116 connected to an external power supply is further provided on the side wall of the second support arm 112 below the second support arm 112. The motor 116 is connected to the first rotating shaft 113 through a transmission part. The transmission part for connecting the motor 116 and the first rotating shaft 113 includes a worm 117 arranged at the output end of the motor 116 and a worm gear 118 arranged on the first rotating shaft 113. The worm gear 118 meshes with the worm 117. When the filling mechanism is not used to fill explosives into the blasting holes, the motor 116 can be started. The motor 116 drives the worm 117 to rotate, so that the worm gear 118 meshing with the worm 117 rotates, and the worm gear 118 drives the first rotating shaft 113 connected thereto to rotate. The first gear 114 arranged on the first rotating shaft 113 also rotates, and drives the inclined block 111 to move in the chute 10 of the hoisting plate 71 towards the inclined groove 731 under the action of the tooth holes 115, and inserts the inclined block 111 into the inclined groove 731. When the inclined block 111 is inserted into the inclined groove 731, the inclined block 111 will lift the measuring cylinder 5 connected to the outer convex plate 73 under the action of the inclined groove 731 of the outer convex plate 73, so that there is a gap between the outer convex plate 73 and the weighing device 74. In this way, it can prevent the outer convex plate 73 from colliding with the weighing device 74 when the vehicle passes through a bumpy section, causing damage to the weighing device 74, and effectively increasing the service life of the weighing device 74. It should be noted that the motor 116 can work in both forward and reverse directions. When it is necessary to withdraw the inclined block 111 from the inclined groove 731 of the outer convex plate 73, it is only necessary to control the motor 116 to rotate in the reverse direction. At the same time, the transmission part in the driving device adopts a worm gear 118 and a worm 117, which has a self-locking function. In this way, it can reduce the excessive bearing capacity of the motor 116 itself when it is working under the cooperation of the inclined block 111 and the inclined groove 731, and prevent the problem that the motor 116 cannot work normally due to excessive bearing capacity.
[0031] As Figure 4As shown in the figure, the control valve for discharging and stopping the material in the measuring cylinder 5 includes a second rotating shaft 12 that is symmetrically rotated around the center of the measuring cylinder 5 and is arranged in the middle and lower part of the measuring cylinder 5. The second rotating shaft 12 penetrates through the measuring cylinder 5 and extends outward. Among them, the second rotating shaft 12 is arranged along the radial direction of the measuring cylinder 5. A flow intercepting plate 121 is arranged on the second rotating shaft 12 inside the measuring cylinder 5, and the two flow intercepting plates 121 are symmetrically arranged. A control component 13 for driving the second rotating shaft 12 to rotate is also arranged on the measuring cylinder 5. The control component 13 includes a second gear 131 arranged at the extending end of the second rotating shaft 12, a retaining ring 133 that slides outside the measuring cylinder 5, and a retaining ring for limiting the retaining ring 133 is arranged at the bottom end of the measuring cylinder 5. A spring 134 is arranged between the retaining ring 133 and the first support arm 72. A rack 132 is arranged on the top surface of the retaining ring 133, and teeth are arranged on both sides of the rack 132. The rack 132 is located between two second gears 131 on the same side, and the rack 132 meshes with the second gears 131. At the same time, an electric push rod 16 connected to an external power supply is arranged at the bottom end of the storage tank 1 corresponding to the position of the hoisting plate 71, and the hoisting plate 71 is connected to the telescopic end of its corresponding electric push rod 16.
[0032] When it is necessary to load explosives into the explosive hole, the electric push rod 16 can be started. The electric push rod 16 drives the hoisting plate 71 and the first support arm 72 connected thereto to descend. The weighing device 74 arranged on the first support arm 72 will also descend, and drive the convex plate 73 and the measuring cylinder 5 connected to the convex plate 73 to descend. When the measuring cylinder 5 descends, the retaining ring 133 slidably arranged on the measuring cylinder 5 also descends and covers the explosive hole. Under the action of the electric push rod 16, the measuring cylinder 5 continues to descend and extends into the explosive hole. Then the first support arm 72 compresses the spring 134 through the retaining ring 133, and the second gear 131 drives the second rotating shaft 12 to rotate under the action of the rack 132. At the same time, the flow intercepting plate 121 arranged on the second rotating shaft 12 also rotates and is in an open state. At this time, the explosives stored in the measuring cylinder 5 fall into the explosive hole. After that, control the electric push rod 16 to drive the hoisting plate 71 and each component arranged thereon to rise to the initial position. After the measuring cylinder 5 rises, the retaining ring 133 returns to the initial position under the action of the spring 134, and the flow intercepting plate 121 also returns to the initial position under the action of the rack 132.
[0033] As Figure 1 shown, in order to improve the connection stability of the weighing component 7 relative to the storage tank 1, a guide plate 8 is arranged on the bottom surface of the storage tank 1 outside the electric push rod 16, and a slider 9 is arranged on the outer wall of the hoisting plate 71. The guide plate 8 and the slider 9 are slidably arranged.
[0034] Usage method: Fix the filling mechanism on the vehicle through the fixing frame 2, then put explosives into the storage tank 1, and set the amount of explosives on the weighing device 74 of the weighing assembly 7 according to the actual situation. After setting, open the valve 15 on the discharge pipe 4, and the explosives in the storage tank 1 will fall into the barrel through the discharge pipe 4, and the amount of explosives in the measuring cylinder 5 will be controlled under the action of the weighing assembly 7. When the amount of explosives in the measuring cylinder 5 reaches the set value, the weighing assembly 7 sends a signal to the valve 15 to make the valve 15 close automatically. Start the vehicle, drive the filling mechanism to move through the vehicle, and align the measuring cylinder 5 on the filling mechanism with the explosive hole. Start the electric push rod 16, and the electric push rod 16 drives the measuring cylinder 5 to descend through the weighing assembly 7. When the measuring cylinder 5 descends, the retaining ring 133 slidably arranged outside the measuring cylinder 5 will also descend accordingly. After covering the explosive hole, the measuring cylinder 5 continues to descend. Under the action of the rack 132, the gears cooperating with it will drive the respective connected second rotating shafts 12 to rotate, and the throttle plates 121 on the second rotating shafts 12 will be opened, allowing the explosives in the measuring cylinder 5 to fall into the explosive hole. The operation is simple and convenient to use.
[0035] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.
Claims
1. An open-pit mine blasting explosive filling mechanism, characterized in that: The invention comprises a material storage tank (1), a fixing frame (2) connected to a vehicle is provided on the material storage tank (1), a discharge pipe (4) is connected to the bottom end of the material storage tank (1), a valve (15) for stopping the material is provided on the discharge pipe (4), a weighing assembly (7) is provided on the material storage tank (1), a measuring cylinder (5) is slidably provided in the weighing assembly (7), the top end of the measuring cylinder (5) is connected to the discharge pipe (4) via a flexible connection, and a control valve for discharging the material in the measuring cylinder (5) is provided in the measuring cylinder (5); The fixing frame (2) comprises a rib plate (21) arranged on the outer wall of the storage tank (1), and mounting plates (22) are arranged at both ends of the rib plate (21). The mounting plate (22) is provided with mounting holes (23), and bolts pass through the mounting holes (23) to be connected to the vehicle.
2. The open-pit mine blasting explosive filling mechanism according to claim 1, characterized in that: The weighing assembly (7) comprises a hanging plate (71) symmetrically arranged with respect to the center of the storage tank (1), the measuring cylinder (5) is located between the two hanging plates (71), a first arm (72) extending inward is provided at the bottom end of the hanging plate (71), and a weighing device (74) is provided at the top end of the first arm (72); The inner wall of each hanging plate (71) is provided with a guide groove (75), and an outer convex plate (73) is slidably arranged in the guide groove (75), the measuring cylinder (5) is arranged between the two outer convex plates (73) and connected thereto, and the outer convex plate (73) cooperates with its corresponding weighing device (74) to work; The two sides of the two first supporting arms (72) are connected by an arc-shaped plate (14), and the arc-shaped plate (14) is located outside the measuring cylinder (5).
3. The open-pit mine blasting explosive filling mechanism according to claim 2, characterized in that: The hanging plate (71) is provided with a slide groove (10), the outer convex plate (73) is provided with an inclined groove (731), the hanging plate (71) is provided with a limit assembly (11) matched with the inclined groove (731), and the limit assembly (11) comprises an inclined block (111) slidably arranged in the slide groove (10) and matched with the inclined groove (731), and a driving device for driving the inclined block (111) to move is provided on the side wall of the hanging plate (71) below the inclined block (111), and the driving device is connected to the inclined block (111).
4. The open-pit mine blasting explosive filling mechanism according to claim 3, characterized in that: The driving device comprises a plurality of tooth holes (115) evenly distributed on the bottom surface of the inclined block (111); Two second arms (112) are arranged parallel to the side wall of the hanging plate (71), the two second arms (112) are located below the inclined block (111), a first rotating shaft (113) is rotatably arranged between the two second arms (112), a first gear (114) is arranged on the first rotating shaft (113), and the first gear (114) is meshed with the gear hole (115); A motor (116) is provided on the side wall of the second support arm (112) below the second support arm (112), and the motor (116) is connected to the first rotating shaft (113) via a transmission part.
5. The open-pit mine blasting explosive filling mechanism according to claim 4, characterized in that ； The transmission part comprises a worm (117) arranged at the output end of the motor (116), a worm wheel (118) arranged on the first rotating shaft (113), and the worm wheel (118) is meshed with the worm (117).
6. The open-pit mine blasting explosive filling mechanism according to claim 1, characterized in that ； The control valve comprises a second rotating shaft (12) arranged at the lower middle part of the measuring cylinder (5) and rotatably symmetrical with the center of the measuring cylinder (5), and a control component (13) driving the second rotating shaft (12) to rotate; The second rotating shaft (12) is arranged along the radial direction of the measuring cylinder (5), and a cut-off plate (121) is arranged on the second rotating shaft (12) and located inside the measuring cylinder (5), and the two cut-off plates (121) are symmetrically arranged.
7. The open-pit mine blasting explosive filling mechanism according to claim 6, characterized in that; An electric push rod (16) is provided at the bottom end of the storage tank (1) at a position corresponding to the lifting plate (71), and the lifting plate (71) is connected to the telescopic end of the corresponding electric push rod (16); The second rotating shaft (12) passes through the measuring cylinder (5) and extends outwards; The control assembly (13) comprises a second gear (131) arranged at the extended end of the second rotating shaft (12), a retaining ring (133) slidably arranged outside the measuring cylinder (5), a spring (134) arranged between the retaining ring (133) and the first arm (72), a rack (132) arranged on the top surface of the retaining ring (133), and the rack (132) meshes with the gear.
8. The open-pit mine blasting explosive filling mechanism according to claim 7, characterized in that; The bottom surface of the material storage tank (1) is provided with a guide plate (8) outside the electric push rod (16), and a sliding block (9) is provided on the outer wall of the hanging plate (71), and the guide plate (8) and the sliding block (9) are slidably arranged.
9. The open-pit mine blasting explosive filling mechanism according to claim 8, characterized in that; The outer wall of the material storage tank (1) is symmetrically provided with a connecting frame (3) connected to the fixing frame (2) at its center, and the connecting frame (3) includes a fixing block (31) provided on the outer wall of the material storage tank (1), a first rib plate (32) is provided on the fixing block (31), a second rib plate (33) is provided on the first rib plate (32), and a free end of the first rib plate (32) is connected to a mounting plate (22) above the fixing frame (2), and the second rib plate (33) is connected to the mounting plate (22) below the fixing frame (2).