A blasting construction hole charging device

Abstract

The blasting construction blast hole charging device has the advantages that when the blast hole is charged, the annular supporting base is first fixed on the top of the blast hole, the two motors are controlled by the motor controller to rotate at the same speed, the two lifting plates are made close to each other through the gear and rack transmission, the bottom of the explosive package is supported stably by the silica gel pad on the lifting plate, the silica gel pad prevents the explosive package from being damaged due to friction, meanwhile, the supporting column handle is rotated, the handle drives the transmission rod and the winding wheel to rotate to release the wire, the square supporting cylinder moves vertically downwards along the square guide cylinder, the square guide cylinder is accurately guided and surrounded on four sides, the explosive package is prevented from breaking due to collision with the inner wall of the blast hole, after the explosive package reaches the designated position at the bottom of the blast hole, the handle is stopped, the motor is reversed to open the lifting plate and release the explosive package, finally, the handle is reversely rotated, the wire is wound on the winding wheel, the square supporting cylinder and the explosive package assembly are moved upwards to reset, and one-time charging is completed, and the device avoids the collision of the explosive package on the inner wall of the blast hole, and the progress of the project is not easily affected.

Description

Technical Field

[0001] This utility model relates to the field of blast hole charging technology, and in particular to a blast hole charging device for blasting operations. Background Technology

[0002] In blasting operations, the process of loading explosives into blast holes is crucial. Since blast holes are typically several to over ten meters deep, it is difficult to clearly see the bottom of the blast hole when placing explosives. For example, the explosive charge may be placed crookedly, which can affect the explosive performance inside the blast hole during blasting. Existing auxiliary charging devices have relatively simple structures and weak performance. They often use a method of directly lowering the explosive charge with a rope. However, the swaying nature of the rope can cause the explosive charge to collide with the inner wall of the blast hole, resulting in breakage and affecting the progress of the project.

[0003] Therefore, it is essential to provide a blasting hole charging device to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by providing a blasting borehole charging device. This device addresses the deficiencies of existing blasting borehole auxiliary charging devices, which suffer from simple structures, poor stability, and a tendency to rupture explosive charges. It provides a blasting borehole charging device that enables stable transport and placement of explosive charges, preventing collisions with the borehole wall during charging, ensuring charging quality and construction safety, and improving construction efficiency.

[0005] The above-mentioned objectives of this utility model are achieved through the following technical means.

[0006] A blasting borehole charging device is provided, comprising a borehole body, a charging mechanism installed on the borehole body, an explosive charge disposed on the charging mechanism, and the explosive charge being placed at the bottom of the borehole body by the charging mechanism.

[0007] Specifically, the charging mechanism includes an annular support base, which is installed on the top of the borehole body. Two support columns are vertically installed on the upper surface of the annular support base. The two support columns are symmetrically installed with respect to the central axis of the annular support base. A transmission rod is movably installed on each support column via a bearing.

[0008] Preferably, a handwheel is installed at one end of each transmission rod, and a winding wheel is installed at the other end of each transmission rod. Each winding wheel is wound with a winding thread, and the ends of the two winding threads are connected to a square support cylinder. An adjustable dosing assembly is installed inside the square support cylinder.

[0009] The adjustable dosing assembly includes two motors, each equipped with a motor controller. The motor controller and the two motors are mounted on one side of a square support cylinder. Each motor's output shaft is equipped with a gear, and each gear is driven by a rack. Each rack is slidably mounted on the inside of the square support cylinder, and a lifting plate is hinged to one end of each rack.

[0010] Each lifting plate has a rectangular through hole on its side, and a cylindrical slider is slidably installed inside each rectangular through hole. Each cylindrical slider is fixedly installed on the inside of the square support cylinder, and the two lifting plates are symmetrically installed relative to the vertical central axis of the square support cylinder.

[0011] A square guide tube is installed on the top inner side of the borehole body. The inner side of the square guide tube is in contact with the outer side of the square support tube. The square support tube moves vertically through the square guide tube.

[0012] A silicone pad is installed on the working surface of the lifting plate, and the lifting plate abuts against the bottom of the explosive charge through the silicone pad.

[0013] This invention uses a motor controller to control two motors to start in opposite directions at the same speed. The output shaft of the motor drives the gear to rotate, and the gear drives the rack to slide inside the square support cylinder. The sliding of the rack drives the lifting plate that is hinged to it to move. Because the rectangular through hole on the side of the lifting plate slides in cooperation with the cylindrical slider fixed inside the square support cylinder, the two lifting plates will move closer to each other along a stable trajectory, so that the two lifting plates can lift the explosive charge together. This device avoids the explosive charge from colliding with the inner wall of the blast hole and is less likely to affect the progress of the project. Attached Figure Description

[0014] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0015] Figure 1 This is a three-dimensional view of the overall structure of a blasting construction borehole charging device according to this utility model.

[0016] Figure 2 This is a partial three-dimensional view of a blasting construction borehole charging device according to this utility model.

[0017] Figure 3 This is a partial three-dimensional view of a blasting construction borehole charging device according to this utility model.

[0018] from Figures 1 to 3 Including: 1. The blast hole body; 2. Explosive loading mechanism; 3. Explosive package; 4. Circular support base; 5. Supporting columns; 6. Transmission rod; 7. Handwheel; 8. Winding reel; 9. Winding; 10. Square support tube; 11. Adjustable dosing assembly; 12. Electric motor; 13. Motor controller; 14. Gear; 15. Gear rack; 16. Lifting board; 17. Rectangular through hole; 18. Cylindrical slider; 19. Square guide tube; 20. Silicone pad. Detailed Implementation

[0019] The present invention will be further described in conjunction with the following embodiments.

[0020] Example 1. like Figure 1-3 As shown, a blasting construction borehole charging device includes a borehole body 1, a charging mechanism 2 installed on the borehole body 1, and an explosive charge 3 disposed on the charging mechanism 2. The explosive charge 3 is placed at the bottom of the borehole body 1 through the charging mechanism 2.

[0021] like Figure 1-3 As shown, the charging mechanism 2 includes an annular support base 4, which is installed on the top of the borehole body 1. Two support columns 5 are vertically installed on the upper end face of the annular support base 4. The two support columns 5 are symmetrically installed with respect to the central axis of the annular support base 4. A transmission rod 6 is movably installed on each support column 5 through a bearing.

[0022] like Figure 1-3 As shown, a handwheel 7 is installed at one end of each transmission rod 6, and a winding wheel 8 is installed at the other end of each transmission rod 6. A winding thread 9 is wound on each winding wheel 8, and the ends of the two winding threads 9 are connected to a square support cylinder 10. An adjustable dosing assembly 11 is installed inside the square support cylinder 10.

[0023] like Figure 1-3 As shown, the adjustable dosing assembly 11 includes two motors 12, each motor 12 is equipped with a motor controller 13, the motor controller 13 and the two motors 12 are mounted on one side of the square support cylinder 10, each motor 12 has a gear 14 mounted on its output shaft, each gear 14 has a rack 15 mounted on its transmission, each rack 15 is slidably mounted on the inside of the square support cylinder 10, and one end of each rack 15 is hinged to a lifting plate 16.

[0024] like Figure 1-3As shown, each lifting plate 16 has a rectangular through hole 17 on its side, and a cylindrical slider 18 is slidably installed inside each rectangular through hole 17. Each cylindrical slider 18 is fixedly installed inside the square support cylinder 10, and the two lifting plates 16 are symmetrically installed relative to the vertical central axis of the square support cylinder 10.

[0025] like Figure 1-3 As shown, a square guide cylinder 19 is installed on the top inner side of the borehole body 1. The inner side of the square guide cylinder 19 is in contact with the outer side of the square support cylinder 10. The square support cylinder 10 moves vertically through the square guide cylinder 19.

[0026] like Figure 1-3 As shown, a silicone pad 20 is installed on the working surface of the lifting plate 16, and the lifting plate 16 abuts against the bottom of the explosive charge 3 through the silicone pad 20.

[0027] When loading explosives into blasting holes, the annular support base 4 is first installed on top of the blast hole body 1 to ensure the overall stability of the device. The motor controller 13 controls two motors 12 to rotate in opposite directions at the same speed. The two motors 12 drive the gear 14 and rack 15 to drive the two lifting plates 16 to move closer to each other until the silicone pad 20 on the lifting plate 16 is in close contact with the bottom of the explosive charge 3, thus achieving stable lifting of the explosive charge 3. The silicone pad 20 can effectively prevent damage caused by contact friction between the lifting plate 16 and the explosive charge 3. The operator rotates the handwheel 7 on the two support columns 5 in sync. The handwheel 7 drives the transmission rod 6 to rotate, and the transmission rod 6 drives the winding wheel 8 to rotate. The winding wheel 8 releases the winding 9, and the winding 9 drives the square support cylinder 10 to move vertically downward along the square guide cylinder 19.

[0028] The square guide cylinder 19 provides precise guidance for the square support cylinder 10. The square guide cylinder 19 adopts a four-sided enclosure structure design to prevent the explosive charge 3 from colliding with the inner wall of the borehole body 1 and causing it to break. When the square support cylinder 10 moves the explosive charge 3 to the designated position at the bottom of the borehole body 1, the handwheel 7 is stopped, and the motor 12 is controlled to rotate in the opposite direction by the motor controller 13, so that the lifting plate 16 is opened and the explosive charge 3 is released, completing the placement of the explosive charge 3 at the bottom of the borehole body 1. Finally, the handwheel 7 is rotated in the opposite direction, and the winding wheel 8 is used to retract the winding 9, which drives the square support cylinder 10 and the adjustable charging assembly 11 to move upward to the initial position, thus completing one charging operation. This device avoids the explosive charge 3 from colliding with the inner wall of the borehole and is less likely to affect the progress of the project.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A blasthole charging device for use in a blast construction, comprising a blasthole body, characterized in that: A charging mechanism is installed on the borehole body, and an explosive charge is provided on the charging mechanism. The explosive charge is placed at the bottom of the borehole body through the charging mechanism. The charging mechanism includes an annular support base, which is installed on the top of the borehole body. Two support columns are vertically installed on the upper surface of the annular support base. The two support columns are symmetrically installed with respect to the central axis of the annular support base. A transmission rod is movably installed on each support column via a bearing. A handwheel is installed at one end of each transmission rod, and a winding wheel is installed at the other end of each transmission rod. A winding thread is wound on each winding wheel. The ends of the two winding threads are connected to a square support cylinder. An adjustable charging assembly is installed inside the square support cylinder. The adjustable dosing assembly includes two motors, each equipped with a motor controller. The motor controller and the two motors are mounted on one side of the square support cylinder. Each motor's output shaft is equipped with a gear, and each gear drives a rack. Each rack is slidably mounted inside the square support cylinder. One end of each rack is hinged to a lifting plate. Each lifting plate has a rectangular through hole on its side, and a cylindrical slider is slidably mounted inside each rectangular through hole. Each cylindrical slider is fixedly mounted inside the square support cylinder. The two lifting plates are symmetrically mounted relative to the vertical central axis of the square support cylinder.

2. The blasting borehole charging device according to claim 1, characterized in that: A square guide cylinder is installed on the top inner side of the borehole body. The inner side of the square guide cylinder is in movable contact with the outer side of the square support cylinder. The square support cylinder moves vertically through the square guide cylinder.

3. The blasting borehole charging device according to claim 2, characterized in that: A silicone pad is installed on the working surface of the lifting plate, and the lifting plate abuts against the bottom of the explosive charge through the silicone pad.

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