A charge structure for pre-splitting blasting vibration reduction

Abstract

The utility model belongs to pre -split blasting technical field, concretely is a kind of pre -split blasting charge structure that reduces vibration, including charge pipe;The top of charge pipe is provided with charge hopper, the left side bolt connection of charge hopper has support plate, the top of support plate is provided with rotating assembly, rotating assembly is provided with intercommunication frame, the right side bolt connection of intercommunication frame has first connecting block, the right side bolt connection of first connecting block has first rotary plate, the bottom bolt connection of first rotary plate left side has rotating shaft, through the structural design of fixed motor, connecting shaft, second rotary plate and second connecting block, drive intercommunication frame to rotate, when explosive jams charge hopper, drive intercommunication frame to rotate to the just above of charge hopper, through the structural design of vibration motor, box, filter screen, fan and air outlet pipe, jet gas flow to charge hopper, and pass through vibration dredge charge hopper, avoid charge hopper jam, improve charge efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pre-splitting blasting technology, specifically a charging structure for vibration reduction in pre-splitting blasting. Background Technology

[0002] Pre-splitting blasting refers to the process of creating a through-crack of a certain width along the designed outline before blasting the main blasting zone during rock excavation. This is done to buffer and reflect the vibration waves from the excavation blasting, control their destructive impact on the remaining rock mass, and achieve a smoother excavation outline. Pre-splitting blasting vibration reduction requires the use of a charging structure and the filling of explosives.

[0003] Publication No. CN209605685U discloses a pre-splitting blasting charging device for open-pit mines. This utility model adopts a hole-by-hole detonation network. This utility model has the advantages of convenient material sourcing, low cost, easy storage and transportation, and simple layout. At the same time, it can greatly improve the half-hole ratio after detonation and effectively reduce vibration. It has wide applicability in the current pre-splitting blasting operations in open-pit mines in China.

[0004] However, although the pre-splitting blasting charging device can perform charging operations, the charging funnel does not have an anti-clogging structure, which causes the explosive to easily clog the bottom of the charging funnel during the charging process, affecting the charging efficiency. Therefore, a pre-splitting blasting vibration reduction charging structure is proposed to address the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has a disadvantage that the charging funnel does not have an anti-blocking structure, which makes it easy for the explosive to block the bottom of the charging funnel during the charging process, affecting the charging efficiency. To this end, we propose a charging structure for pre-splitting blasting and vibration reduction.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a charging structure for pre-splitting blasting vibration reduction, including a charging tube; a charging hopper is provided at the top of the charging tube, a support plate is bolted to the left side of the charging hopper, a rotating assembly is provided at the top of the support plate, a connecting frame is provided on the rotating assembly, a first connecting block is bolted to the right side of the connecting frame, a first rotating plate is bolted to the right side of the first connecting block, a rotating shaft is bolted to the bottom left side of the first rotating plate, and the left side of the rotating shaft is rotatably connected to the right side of the charging hopper through a bearing, an air inlet assembly is provided at the top of the connecting frame, and several air outlets are connected to the bottom of the connecting frame.

[0007] Preferably, the rotating assembly includes a fixed motor, a connecting shaft, a second rotating plate, and a second connecting block. The fixed motor is bolted to the top of the support plate, the output shaft of the fixed motor is fixedly connected to the connecting shaft, the second rotating plate is fixedly connected to the surface of the connecting shaft, the second connecting block is bolted to the top right side of the second rotating plate, the right side of the second connecting block is bolted to the left side of the connecting frame, and the right side of the connecting shaft is rotatably connected to the left side of the medicine hopper via a bearing.

[0008] Preferably, the air intake assembly includes a housing, a fan, and an air outlet pipe. The housing is bolted to the left side of the top of the connecting frame, and the fan is bolted to the right side of the bottom of the housing. The air inlet of the fan is connected to the air intake pipe, and the air outlet of the fan is connected to the air outlet pipe. The other end of the air outlet pipe passes through the housing and connects to the top of the connecting frame.

[0009] Preferably, a vibration motor is installed at the bottom of the surface of the charging hopper.

[0010] Preferably, a filter screen is bolted to the left side of the top of the inner cavity of the box, and the bottom of the filter screen is bolted to the left side of the bottom of the inner cavity of the box.

[0011] Preferably, the connecting frame is circular in shape, and the diameter of the connecting frame is smaller than the diameter of the inner cavity of the charging hopper.

[0012] The beneficial effects of this utility model are: This invention utilizes a structural design consisting of a fixed motor, a connecting shaft, a second rotating plate, and a second connecting block to drive the connecting frame to rotate. When explosives clog the charging hopper, the connecting frame rotates to directly above the charging hopper. Through the structural design of a vibrating motor, housing, filter screen, fan, and air outlet pipe, airflow is injected into the charging hopper, and the vibration clears the blockage, preventing clogging and improving charging efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional view of the charge hopper structure of this utility model; Figure 3 This is a cross-sectional view of the box structure of this utility model; Figure 4 This is a bottom view of the connecting frame structure of this utility model.

[0015] In the diagram: 1. Drug loading tube; 2. Drug loading hopper; 3. Support plate; 4. Rotating assembly; 41. Fixed motor; 42. Connecting shaft; 43. Second rotating plate; 44. Second connecting block; 5. Connecting frame; 6. First connecting block; 7. First rotating plate; 8. Air intake assembly; 81. Box body; 82. Fan; 83. Air outlet pipe; 9. Vibration motor; 10. Filter screen; 11. Air outlet head. Detailed Implementation

[0016] 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 scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail. This application discloses a charge structure for vibration reduction in pre-splitting blasting. (Refer to...) Figure 1 and Figure 2 A pre-splitting blasting vibration reduction charging structure includes a charging tube 1; a charging hopper 2 is provided at the top of the charging tube 1, a support plate 3 is bolted to the left side of the charging hopper 2, a rotating assembly 4 is provided at the top of the support plate 3, a connecting frame 5 is provided on the rotating assembly 4, a first connecting block 6 is bolted to the right side of the connecting frame 5, a first rotating plate 7 is bolted to the right side of the first connecting block 6, a rotating shaft is bolted to the bottom left side of the first rotating plate 7, and the left side of the rotating shaft is rotatably connected to the right side of the charging hopper 2 through a bearing, an air inlet assembly 8 is provided at the top of the connecting frame 5, and a plurality of air outlets 11 are connected to the bottom of the connecting frame 5.

[0018] Reference Figure 1 and Figure 2 The rotating assembly 4 includes a fixed motor 41, a connecting shaft 42, a second rotating plate 43, and a second connecting block 44. The fixed motor 41 is bolted to the top of the support plate 3. The output shaft of the fixed motor 41 is fixedly connected to the connecting shaft 42. The second rotating plate 43 is fixedly connected to the surface of the connecting shaft 42. The second connecting block 44 is bolted to the top right side of the second rotating plate 43. The right side of the second connecting block 44 is bolted to the left side of the connecting frame 5. The right side of the connecting shaft 42 is rotatably connected to the left side of the medicine hopper 2 through a bearing.

[0019] Reference Figure 3 and Figure 4The air intake assembly 8 includes a housing 81, a fan 82, and an air outlet pipe 83. The housing 81 is bolted to the left side of the top of the connecting frame 5, and the fan 82 is bolted to the right side of the bottom of the inner cavity of the housing 81. The air inlet of the fan 82 is connected to the air intake pipe, and the air outlet of the fan 82 is connected to the air outlet pipe 83. The other end of the air outlet pipe 83 passes through the housing 81 and connects to the top of the connecting frame 5. Airflow is sprayed into the charging hopper 2 to prevent the charging hopper 2 from being blocked and to improve the charging efficiency.

[0020] Reference Figure 1 Vibration motors 9 are installed at the bottom of the surface of the charging hopper 2; the charging hopper 2 is cleared by vibration.

[0021] Reference Figure 3 A filter screen 10 is bolted to the left side of the top of the inner cavity of the housing 81, and the bottom of the filter screen 10 is bolted to the left side of the bottom of the inner cavity of the housing 81; it can filter the air entering the housing 81.

[0022] Reference Figure 1 The connecting frame 5 is circular in shape, and its diameter is smaller than the diameter of the inner cavity of the charging hopper 2; it can blow air onto the inner wall of the charging hopper 2 to facilitate the cleaning of residual explosives.

[0023] Working principle: The user turns on the vibration motor 9 and feeds explosives into the charging hopper 2. When the charging hopper 2 is blocked, the user turns on the fixed motor 41. The fixed motor 41 drives the connecting shaft 42 to rotate, and the connecting shaft 42 drives the second rotating plate 43 to rotate. The second rotating plate 43 then drives the second connecting block 44 to rotate, and the second connecting block 44 drives the connecting frame 5 to rotate to the top of the charging hopper 2. At this time, the user turns on the fan 82, and the filter screen 10 filters the air. Then the fan 82 delivers the air to the connecting frame 5, and the connecting frame 5 delivers the air to the air outlet and sprays it out, spraying airflow into the charging hopper 2. This, together with the vibration motor 9, clears the blockage in the charging hopper 2 and prevents it from becoming blocked.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A charge structure for pre-splitting blasting with vibration reduction, characterized in that: The device includes a loading tube (1); a loading hopper (2) is provided at the top of the loading tube (1); a support plate (3) is bolted to the left side of the loading hopper (2); a rotating assembly (4) is provided at the top of the support plate (3); a connecting frame (5) is provided on the rotating assembly (4); a first connecting block (6) is bolted to the right side of the connecting frame (5); a first rotating plate (7) is bolted to the right side of the first connecting block (6); a rotating shaft is bolted to the bottom left side of the first rotating plate (7); and the left side of the rotating shaft is rotatably connected to the right side of the loading hopper (2) through a bearing; an air inlet assembly (8) is provided at the top of the connecting frame (5); and several air outlets (11) are connected to the bottom of the connecting frame (5).

2. The charge structure for pre-splitting blasting vibration reduction according to claim 1, characterized in that: The rotating assembly (4) includes a fixed motor (41), a connecting shaft (42), a second rotating plate (43), and a second connecting block (44). The top of the support plate (3) is bolted to the fixed motor (41). The output shaft of the fixed motor (41) is fixedly connected to the connecting shaft (42). The surface of the connecting shaft (42) is fixedly connected to the second rotating plate (43). The top right side of the second rotating plate (43) is bolted to the second connecting block (44). The right side of the second connecting block (44) is bolted to the left side of the connecting frame (5). The right side of the connecting shaft (42) is rotatably connected to the left side of the medicine hopper (2) through a bearing.

3. The charge structure for pre-splitting blasting vibration reduction according to claim 1, characterized in that: The air intake assembly (8) includes a housing (81), a fan (82), and an air outlet pipe (83). The housing (81) is bolted to the left side of the top of the connecting frame (5). The fan (82) is bolted to the right side of the bottom of the inner cavity of the housing (81). The air inlet of the fan (82) is connected to the air intake pipe. The air outlet of the fan (82) is connected to the air outlet pipe (83). The other end of the air outlet pipe (83) passes through the housing (81) and is connected to the top of the connecting frame (5).

4. The charge structure for pre-splitting blasting vibration reduction according to claim 1, characterized in that: Vibration motors (9) are installed at the bottom of the surface of each of the drug hoppers (2).

5. The charge structure for pre-splitting blasting vibration reduction according to claim 3, characterized in that: A filter screen (10) is bolted to the left side of the top of the inner cavity of the box (81), and the bottom of the filter screen (10) is bolted to the left side of the bottom of the inner cavity of the box (81).

6. The charge structure for pre-splitting blasting vibration reduction according to claim 1, characterized in that: The connecting frame (5) is circular in shape, and the diameter of the connecting frame (5) is smaller than the diameter of the inner cavity of the medicine hopper (2).

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