Non-coupling charging auxiliary device for smooth blasting

Abstract

The utility model relates to the technical field of blasting engineering, in particular to a non-coupling charging auxiliary device for smooth blasting, the non-coupling charging auxiliary device for smooth blasting comprises a placing cylinder, the placing cylinder is inserted into a blasting hole, an opening is formed in the top wall of the placing cylinder, and a cartridge is placed in the placing cylinder; at least four telescopic assemblies are arranged on the peripheral side of the placing cylinder, so that the telescopic assemblies are symmetrically arranged on the two opposite sides of the placing cylinder; the telescopic assembly comprises an outer rod and an inner rod, one end of the outer rod is fixedly connected with the placing cylinder, the other end of the outer rod is provided with a telescopic groove, and the inner rod is inserted into the telescopic groove and can reciprocate along the telescopic groove; and a driving assembly for controlling the telescopic amount of the inner rod along the telescopic groove is arranged corresponding to the inner rod, so that the effect of more conveniently limiting the position of the cartridge during charging is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of blasting engineering, and in particular to an uncoupled charging auxiliary device for smooth blasting. Background Art

[0002] Smooth blasting is a controlled blasting technique that creates a smooth surface on the designed excavation contour line through the correct selection of blasting parameters and reasonable construction methods. This results in a smooth and flat rock surface after blasting, minimizing disturbance and damage to the retained rock mass while reducing over-excavation and under-excavation.

[0003] Existing smooth blasting methods typically use an uncoupled charge method. In this method, the diameter of the charge coil is smaller than the diameter of the blasthole, creating an annular gap of air (or other intervening medium) between the charge coil and the blasthole wall. The explosive energy compresses the air in this gap, which then transfers energy to the rock at the blasthole wall, reducing the peak pressure applied to the rock and prolonging the duration of the pressure. This change in energy transfer makes the rock fragmentation process more controllable.

[0004] The above-mentioned existing technical solutions have the following defects: it is difficult to center the charge roll during the charging process, and the charge roll is easily displaced, thereby affecting the uniformity and smooth surface effect of the blasting. Utility Model Content

[0005] In order to achieve a more convenient effect of limiting the position of the charge roll during charging, the present application provides an uncoupled charging auxiliary device for smooth blasting.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A non-coupled charging auxiliary device for smooth blasting includes a placing tube, which is inserted into the blasting hole. The top wall of the placing tube is provided with an opening, and the placing tube is used to place a medicine roll; at least four telescopic components are provided on the circumference of the placing tube, so that the two opposite sides of the placing tube are symmetrically provided with telescopic components; the telescopic component includes an outer rod and an inner rod, one end of the outer rod is fixedly connected to the placing tube, and the other end of the outer rod is provided with a telescopic slot, and the inner rod is inserted into the telescopic slot and can move back and forth along the telescopic slot; a driving component is provided corresponding to the inner rod to control its telescopic amount along the telescopic slot.

[0008] By adopting the above scheme, after the medicine roll is placed in the placement tube, the control drive assembly adjusts the extension and contraction amount of each inner rod so that the extension and contraction amount of each inner rod is consistent. During the adjustment process, the placement tube is kept in a centered state. The above setting achieves a more convenient effect of limiting the position of the medicine roll when loading medicine.

[0009] Further, the placing cylinder is uniformly provided with a plurality of air vents on the side.

[0010] By adopting the above scheme, the air vents can effectively avoid safety hazards caused by gas accumulation.

[0011] Further, the bottom wall of the placing cylinder is provided with a plurality of ball grooves, and each ball groove is embedded with a roller rotatably connected thereto, which is used to reduce the friction between the bottom wall of the placing cylinder and the bottom wall of the blast hole.

[0012] By adopting the above scheme, when the position of the placing cylinder in the blast hole is adjusted, the sliding friction between the bottom wall of the placing cylinder and the bottom wall of the blast hole is changed to rolling friction, reducing the friction force, so that the adjustment of the position of the placing cylinder is more labor-saving.

[0013] Further, each inner rod is provided with a push plate, and one driving assembly is correspondingly arranged between the two symmetrical push plates; at least two connecting assemblies are arranged between each push plate and the driving assembly, and each connecting assembly comprises a threaded rod and a plug-in rod; a threaded hole is formed in the upper surface of the push plate corresponding to the threaded rod, one end of the threaded rod is threadedly connected with the threaded hole, the other end of the threaded rod is fixedly connected with the plug-in rod, and the other end of the plug-in rod is plug-in matched with the driving assembly.

[0014] By adopting the above scheme, by rotating the threaded rod, the relative position relationship between the threaded rod and the threaded hole can be controlled, and then the distance between the driving assembly connected with the two symmetrical connecting assemblies and the upper surface of the push plate can be controlled; and by controlling the distance between the adjacent top ends of the threaded rods relative to the upper surface of the push plate to be different, and then controlling the distance between the top ends of the two symmetrical threaded rods relative to the upper surface of the push plate to be consistent, the height of the two driving assemblies relative to the upper surface of the push plate can be made different, so that interference between the two driving assemblies is avoided.

[0015] Further, the driving assembly comprises a bidirectional screw rod, a sliding block and a driving piece, the sliding block is provided with two and is threadedly connected on the threads with opposite rotation directions at both ends of the bidirectional screw rod; each sliding block corresponds to one connecting assembly, and the lower surface of the sliding block is provided with a plug-in hole, and the plug-in rod is plug-in matched with the plug-in hole; the output end of the driving piece is fixedly connected with the bidirectional screw rod, and the driving piece is used to drive the bidirectional screw rod to rotate.

[0016] By adopting the above scheme, the driving piece can drive the bidirectional screw rod to rotate, the two sliding blocks are driven to move close to or away from each other by the bidirectional screw rod, the sliding block is moved by the connecting assembly along the bidirectional screw rod, the push plate is moved by the inner rod along the telescopic groove, and then the extension amount of each inner rod is controlled.

[0017] Further, a fastening pad is arranged on the inner circumferential side of the plug-in hole, and an anti-skid pattern is arranged on the outer surface of the fastening pad.

[0018] By adopting the above solution, the provision of the fastening pad reduces the aperture of the plug hole, and when the plug rod is inserted into the plug hole, an interference fit can be achieved, thereby preventing the plug rod from falling off through the plug hole.

[0019] Furthermore, the plug-in rod includes a tip and a flat end, and the flat end is fixedly connected to the threaded rod.

[0020] By adopting the above solution, the setting of the tip facilitates the insertion of the plug rod into the plug hole.

[0021] Furthermore, a threaded hole is formed on the upper surface of each outer rod, and a top screw is threadedly connected to the threaded hole. When the relative position relationship between the inner rod and the outer rod is determined, the top screw is rotated until it abuts against the inner rod.

[0022] By adopting the above solution, the relative position relationship between the inner rod and the outer rod can be locked after the rotating top screw abuts against the inner rod.

[0023] In summary, this application has the following technical effects:

[0024] 1. By setting up this device, after placing the medicine roll into the placement tube, the control drive assembly adjusts the extension and contraction of each inner rod to make the extension and contraction of each inner rod consistent. During the adjustment process, the placement tube is kept in the center. The above setting achieves a more convenient effect of limiting the position of the medicine roll during loading;

[0025] 2. By setting up ventilation holes, safety hazards caused by gas accumulation can be effectively avoided;

[0026] 3. By setting up the roller, when adjusting the placement tube to the center of the blasting hole, the sliding friction between the bottom wall of the placement tube and the bottom wall of the blasting hole is converted into rolling friction, which reduces the friction and makes it easier to adjust the position of the placement tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an uncoupled charge auxiliary device for smooth blasting according to the present application;

[0028] Figure 2 It is a schematic diagram of the structure of the auxiliary device of this application;

[0029] Figure 3 It is a schematic diagram of the structure of the connection components of this application;

[0030] Figure 4 It is a cross-sectional view of the placement tube of this application.

[0031] In the figure, 1, the placement cylinder; 11, the air hole; 12, the roller; 2, the telescopic assembly; 21, the outer rod; 211, the jackscrew; 22, the inner rod; 221, the push plate; 3, the driving assembly; 31, the bidirectional screw; 32, the driving piece; 33, the sliding block; 331, the insertion hole; 3311, the fastening pad; 4, the connecting assembly; 41, the threaded rod; 42, the insertion rod; 5, the support assembly; 51, the sleeve; 52, the elastic piece; 53, the linkage rod; 54, the support rod. DETAILED DESCRIPTION

[0032] The application will be further described below in detail with reference to the drawings.

[0033] Referring to Figures 1-2 The auxiliary device for uncoupled charge of smooth blasting provided by the embodiment comprises a placement cylinder 1, a telescopic assembly 2 and a driving assembly 3. The placement cylinder 1 is a cylindrical hollow structure with an opening in the top wall and a plurality of air holes 11 uniformly arranged on the side wall. The placement cylinder 1 is placed in the interior of a blasting hole, and a cartridge is placed into the interior of the placement cylinder 1 through the opening of the placement cylinder 1. The telescopic assembly 2 is arranged on the outer wall of the placement cylinder 1. In the embodiment, four telescopic assemblies 2 are arranged, and every two telescopic assemblies 2 are symmetrically arranged. Two driving assemblies 3 are symmetrically arranged between the two telescopic assemblies 2.

[0034] Referring to Figure 2 and Figure 4 Each telescopic assembly 2 comprises an outer rod 21 and an inner rod 22. One end of the outer rod 21 is fixedly connected with the outer wall of the placement cylinder 1, and the other end of the outer rod 21 is provided with a telescopic groove. The inner rod 22 is inserted into the telescopic groove and can reciprocate along the telescopic groove. The end of the inner rod 22 away from the placement cylinder 1 is arranged in an arc shape, which facilitates the abutment of the inner rod 22 and the inner wall of the blasting hole. A threaded hole is arranged on the upper surface of each outer rod 21, and a jackscrew 211 is threadedly connected with the threaded hole. When the relative position relationship between the inner rod 22 and the outer rod 21 is determined, the jackscrew 211 is rotated to abut against the inner rod 22.

[0035] Referring to Figure 2 In the embodiment, the four telescopic assemblies 2 are named as driving parts. The side wall of the placement cylinder 1 is further provided with a support part, which is located below the driving parts. The support part comprises a plurality of support assemblies 5. Specifically, a plurality of support assemblies 5 are arranged in the length direction of each driving assembly 3, and the support assemblies 5 below each driving assembly 3 are linearly arranged.

[0036] Referring to Figure 2 and Figure 4Each support assembly 5 comprises a sleeve 51, an elastic member 52, a linkage rod 53 and a support rod 54, one end of the sleeve 51 is fixedly connected with the outer wall of the placing cylinder 1, the support rod 54 is inserted into the other end of the sleeve 51 and is in sliding connection with the sleeve 51; the elastic member 52 is placed inside the sleeve 51, one end of the elastic member 52 is fixedly connected with the inner bottom wall of the sleeve 51, the other end of the elastic member 52 is fixedly connected with the end of the support rod 54 inserted into the sleeve 51; the linkage rod 53 is provided with four, the support rods 54 in the same vertical length direction are connected together through the inner rod 22, and each linkage rod 53 extends upward to be fixedly connected with the inner rod 22 in the length direction thereof, so that the movement of the inner rod 22 can drive the movement of the support rods 54 in the same length direction; in the embodiment, the elastic member 52 is a tension spring, that is, in the natural state, the elastic member 52 pushes the support rod 54 to move away from the end of the placing cylinder 1; the side of each support rod 54 away from the outer wall of the sleeve 51 is provided in an arc shape, which facilitates the abutment of the support rod 54 and the inner wall of the blasting hole.

[0037] With reference to Figures 1-3 The upper surface of each inner rod 22 is fixedly connected with a toggle plate 221, and one connecting assembly 4 is arranged on each toggle plate 221, and the connecting assembly 4 is used for connecting the toggle plate 221 and the driving assembly 3; each connecting assembly 4 comprises a threaded rod 41 and a plug-in rod 42, a threaded hole is formed in the upper surface of the toggle plate 221 corresponding to the threaded rod 41, one end of the threaded rod 41 is in threaded connection with the threaded hole, the other end of the threaded rod 41 is fixedly connected with the plug-in rod 42, and the other end of the plug-in rod 42 is in plug-in cooperation with the driving assembly 3; in the embodiment, the plug-in rod 42 comprises a flat end and a pointed end, specifically, the flat end is fixedly connected with the threaded rod 41, and the pointed end is used for plug-in cooperation with the driving assembly 3.

[0038] With reference to Figures 1-3 Each driving assembly 3 comprises a bidirectional screw 31, two sliding blocks 33 and a driving member 32, and the two sliding blocks 33 are threadedly sleeved on two sections of threads of the bidirectional screw 31 with opposite rotation directions; a plug-in hole 331 is formed in the lower surface of each sliding block 33, and the plug-in rod 42 is in plug-in cooperation with the plug-in hole 331; a fastening pad 3311 is fixedly connected to the inner wall of the plug-in hole 331, and an anti-skid pattern is arranged on the outer surface of the fastening pad 3311, so that after the pointed end of the plug-in rod 42 is inserted into the plug-in hole 331, the pointed end can be in interference fit with the threaded hole 331; the driving member 32 is placed on a working surface, and the output end of the driving member 32 is fixedly connected with the bidirectional screw 31; in the embodiment, the driving member 32 is preferably an electric motor.

[0039] With reference to Figures 1-3, two driving assemblies 3 are perpendicular to each other and do not interfere with each other, and the connection mode of each driving assembly 3 and the connecting assembly 4 is that: the distance between the top of the adjacent threaded rod 41 relative to the upper surface of the dial plate 221 is controlled to be different, and the distance between the top of the opposite threaded rod 41 relative to the upper surface of the dial plate 221 is controlled to be the same; so that the heights of the two driving assemblies 3 relative to the upper surface of the dial plate 221 are different, thereby avoiding interference between the two driving assemblies 3.

[0040] Referring to Figure 4 Figures 1-3 , the bottom wall of the placement cylinder 1 is provided with a plurality of ball grooves, and each ball groove is embedded with a roller 12 rotationally connected therewith; the roller 12 abuts against the bottom wall of the blast hole; this arrangement can reduce the friction between the bottom wall of the placement cylinder 1 and the bottom wall of the blast hole.

[0041] The specific implementation principle of the uncoupling charging auxiliary device for smooth blasting of the embodiment of the present application is as follows: first, start two driving members 32, rotate the two driving members 32, drive the two bidirectional lead screws 31 to rotate, and drive the sliding blocks 33 on the two bidirectional lead screws 31 to move; each sliding block 33 drives the corresponding dial plate 221 to move, the dial plate 221 drives the inner rod 22 to move along the telescopic slot until each inner rod 22 on the side close to the blast hole abuts against the blast hole; in this process, the placement cylinder 1 moves in the blast hole, and when each inner rod 22 abuts against the blast hole, the placement cylinder 1 is just in the central position; then each driving device 3 is taken out through the insertion rod 42; then the cartridge is placed into the placement cylinder 1; then the blasting operation can be started.

[0042] The embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. An uncoupled charging auxiliary device for smooth blasting, characterized by: The invention comprises a placing tube (1), which is inserted into the blasting hole, and an opening is provided on the top wall of the placing tube (1), and the placing tube (1) is used to place a drug roll; at least four telescopic components (2) are provided on the circumference of the placing tube (1), so that the telescopic components (2) are symmetrically provided on opposite sides of the placing tube (1); the telescopic components (2) comprise an outer rod (21) and an inner rod (22); one end of the outer rod (21) is fixedly connected to the placing tube (1), and the other end of the outer rod (21) is provided with a telescopic slot, and the inner rod (22) is inserted into the telescopic slot and can move back and forth along the telescopic slot; a driving component (3) is provided corresponding to the inner rod (22) to control the telescopic amount of the inner rod (22) along the telescopic slot.

2. The uncoupled charging auxiliary device for smooth blasting according to claim 1, characterized in that: A plurality of air holes (11) are evenly arranged on the circumference of the placement tube (1).

3. The uncoupled charging auxiliary device for smooth blasting according to claim 1, characterized in that: The bottom wall of the placement tube (1) is provided with a plurality of ball rolling grooves, each of which is embedded with a roller (12) rotatably connected thereto, and the roller (12) is used to reduce friction between the bottom wall of the placement tube (1) and the bottom wall of the blasting hole.

4. The uncoupled charging auxiliary device for smooth blasting according to claim 1, characterized in that: Each inner rod (22) is provided with a toggle plate (221), and a driving assembly (3) is correspondingly provided between two symmetrical toggle plates (221); at least two connecting assemblies (4) are provided between each toggle plate (221) and the driving assembly (3), and each connecting assembly (4) comprises a threaded rod (41) and a plug-in rod (42); a threaded hole is provided on the upper surface of the toggle plate (221) corresponding to the threaded rod (41), one end of the threaded rod (41) is threadedly connected to the threaded hole, the other end of the threaded rod (41) is fixedly connected to the plug-in rod (42), and the other end of the plug-in rod (42) is plugged into and matched with the driving assembly (3).

5. The uncoupled charging auxiliary device for smooth blasting according to claim 4, characterized in that: The driving assembly (3) comprises a bidirectional lead screw (31), a slider (33) and a driving member (32), wherein two sliders (33) are provided and are respectively threadedly connected to threads at both ends of the bidirectional lead screw (31) with opposite rotation directions; each slider (33) corresponds to a connecting assembly (4), a plug hole (331) is provided on the lower surface of the slider (33), and a plug rod (42) is plugged into and matched with the plug hole (331); the output end of the driving member (32) is fixedly connected to the bidirectional lead screw (31), and the driving member (32) is used to drive the bidirectional lead screw (31) to rotate.

6. The uncoupled charging auxiliary device for smooth blasting according to claim 5, characterized in that: A circle of fastening pads (3311) is provided on the inner circumference of the plug hole (331), and anti-slip grooves are provided on the outer surface of the fastening pads (3311).

7. The uncoupled charging auxiliary device for smooth blasting according to claim 5, characterized in that: The plug-in rod (42) comprises a tip and a flat end, and the flat end is fixedly connected to the threaded rod (41).

8. The uncoupled charging auxiliary device for smooth blasting according to claim 1, characterized in that: A threaded hole is provided on the upper surface of each outer rod (21), and a top screw (211) is threadedly connected to the threaded hole. When the relative position relationship between the inner rod (22) and the outer rod (21) is determined, the top screw (211) is rotated until it abuts against the inner rod (22).

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