Vertical shaft dredging and blasting device

Abstract

The utility model discloses a vertical shaft dredging and blasting device which comprises an unwinding mechanism, a helium balloon connected to the movable end of a traction rope on the unwinding mechanism, a blasting charge fixed to the top of the helium balloon, a detonating cord connected with the blasting charge and an adjusting assembly installed on one side of a vertical shaft and used for pulling the traction rope. An adjusting rod capable of vertically rotating and horizontally swinging is arranged in the adjusting assembly, a guide head is arranged at one end of the adjusting rod, and the traction rope penetrates through the guide head. The effect of improving the safety of dredging and blasting construction of the vertical shaft and the blasting accuracy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft blasting, in particular to a shaft dredging blasting device. Background Technique

[0002] During the construction of underground engineering excavation, it is usually necessary to use a shaft as a waste slag passage. Since most shafts are relatively deep and have a small hole diameter, it is inevitable that the shaft will be blocked during the waste slag discharging process. The conventional dredging construction method is to tie an explosive package to a helium balloon, lift the helium balloon to the bottom of the plug body by means of wire laying, and remotely detonate the plug body in the shaft. However, at present, in order to ensure that the helium balloon rises to the designated area, the form of manual wire laying is adopted. Although the staff can avoid being directly injured by the falling stone slag when laying the wire on one side of the shaft, the staff cannot maintain a certain safety distance from the shaft due to the operation requirements, and there are still relatively large safety hazards. Moreover, in the form of the staff towing and releasing the helium balloon, due to the need for a safety distance, it is impossible to ensure that the helium balloon reaches the designated area, and there are relatively large errors. Summary of the Invention

[0003] The technical problem to be solved by the utility model is that the manual release method has safety hazards and relatively large errors.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a shaft dredging blasting device, including a rewinding mechanism, a helium balloon connected to the movable end of the towing rope on the rewinding mechanism, an explosive package fixed on the top of the helium balloon, a detonating cord connected to the explosive package, and an adjusting assembly installed on one side of the shaft for pulling the towing rope. A regulating rod that can rotate vertically and swing horizontally is arranged in the adjusting assembly. One end of the regulating rod is provided with a guiding head, and the towing rope passes through the guiding head.

[0005] Preferably, the adjusting assembly includes a mounting seat and a mounting frame vertically rotatably connected to the bottom of the mounting seat. The regulating rod is horizontally rotatably installed at the bottom end of the mounting frame. A swinging motor for driving the mounting frame to rotate vertically is connected to one side of the mounting seat. A counterweight block is slidably installed at the other end of the regulating rod, and when the counterweight block is located at the end of the regulating rod, the regulating rod is in a horizontal state.

[0006] Preferably, the output end of the swinging motor is connected with a driving gear, a bearing seat is arranged at the bottom of the mounting seat, the top of the mounting frame is rotatably connected in the bearing seat, and a driven gear meshing with the driving gear is connected to the top of the mounting frame.

[0007] Preferably, the cross section of the counterweight block is in a gate shape, and a traveling structure is rotatably arranged at the bottom of the counterweight block, and the traveling structure is attached to the bottom surface of the regulating rod.

[0008] Preferably, a rack is installed in parallel at the bottom of the adjusting rod. The traveling mechanism includes a mounting shaft and a traveling gear connected to the mounting shaft. The traveling gear meshes with the rack. A driving motor for the rotation of the mounting shaft and a DC power supply are provided on the side wall of the counterweight. The driving motor is in signal connection with the remote controller.

[0009] Preferably, two guide wheels are rotatably arranged inside the guide head, and an annular groove for accommodating the traction rope is arranged on the outer peripheral surface of the guide wheel.

[0010] The utility model provides a shaft dredging blasting device, which does not require manual release by staff. Instead, a winding and unwinding mechanism is adopted for remote control to ensure the safety of the construction process. The traction rope is towed by the adjusting rod. By adjusting the angles of the adjusting rod in the horizontal and vertical directions, the position of the contact point between the traction rope and the adjusting rod is controlled, and then the position of the helium balloon is controlled, improving the accuracy of releasing the helium balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following further illustrates the utility model with reference to the drawings and embodiments:

[0012] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0013] Figure 2 It is a schematic structural diagram of an adjusting assembly in an embodiment of the utility model.

[0014] In the figure: 1, explosive package; 2, detonating cord; 3, helium balloon; 4, band; 5, winding and unwinding mechanism; 6, protective sandbag; 7, initiator; 8, adjusting assembly; 801, mounting seat; 802, bearing seat; 803, mounting frame; 804, adjusting rod; 805, guide head; 806, counterweight; 807, swing motor; 808, driving gear; 809, driven gear; 810, rack; 811, traveling gear; 812, limit block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] As Figure 1 and Figure 2 shown. The utility model provides a shaft dredging blasting device, which includes a winding and unwinding mechanism 5, a helium balloon 3 connected to the movable end of the traction rope on the winding and unwinding mechanism 5, an explosive package 1 fixed on the top of the helium balloon 3, a detonating cord 2 connected to the explosive package 1, and an adjusting assembly 8 installed on one side of the shaft for pulling the traction rope. The adjusting assembly 8 is provided with an adjusting rod 804 that can rotate vertically and swing horizontally. One end of the adjusting rod 804 is provided with a guide head 805, and the traction rope passes through the guide head 805.

[0016] The unwinding mechanism 5, the detonator 7 and the adjustment assembly 8 are all arranged in the underground chamber below the vertical shaft. The unwinding mechanism 5 and the adjustment assembly 8 are both powered by a mobile DC power supply. A protective wall is built with protective sandbags 6 between the detonator 7 and the lower wellhead of the vertical shaft to ensure the safety of the staff during detonation.

[0017] During construction, first use the protective sandbags 6 to build the protective wall. Then inflate the helium balloon 3. Connect the helium balloon 3 with the towing rope wound on the unwinding mechanism 5 and lock the towing rope. Then fix the explosive package 1 on the top of the helium balloon 3 by gluing. Then use the strap 4 to connect the towing rope and the movable end of the detonating cord 2. Then release the helium balloon 3. The motor of the unwinding mechanism 5 rotates for stable unwinding. During the unwinding process, observe whether the helium balloon 3 rises to the set position. If the position of the helium balloon 3 deviates, adjust the angle of the adjusting rod 804 in the adjustment assembly 8 so that the guiding head 805 of the adjusting rod 804 towes the helium balloon 3 to move the helium balloon 3 to the set position. Then continue to release it until the helium balloon 3 rises to the top and touches the plug in the vertical shaft. Then the staff withdraws behind the protective wall and detonates the explosive package 1 through the detonator 7 to realize the dredging of the plug in the vertical shaft. If it fails to be completely dredged at one time, carry out the blasting dredging operation again.

[0018] As Figure 1 and Figure 2 shown. The adjustment assembly 8 includes a mounting base 801 and a mounting frame 803 vertically and rotatably connected to the bottom of the mounting base 801. The adjusting rod 804 is horizontally and rotatably installed at the bottom end of the mounting frame 803. One side of the mounting base 801 is connected with a swing motor 807 that drives the mounting frame 803 to rotate vertically. A counterweight 806 is slidably installed at the other end of the adjusting rod 804. And when the counterweight 806 is located at the end of the adjusting rod 804, the adjusting rod 804 is in a horizontal state. The swing motor 807 can drive the mounting frame 803 to rotate, and then drive the adjusting rod 804 to rotate to realize the position adjustment in one direction. By moving the counterweight 806 at the other end of the adjusting rod 804, the force arm at the counterweight 806 is changed, and then one end of the adjusting rod 804 rotates downward, realizing the position adjustment of the guiding head 805 in the other direction. Using the two position adjustment forms enables the guiding head 805 to adjust its position in the horizontal direction, and then adjust the position of the bottom end of the towing rope to realize the position adjustment of the helium balloon 3.

[0019] As Figure 2As shown in the figure, to achieve the vertical rotation of the adjusting rod 804. The output end of the swing motor 807 is connected with a driving gear 808. The bottom of the mounting seat 801 is provided with a bearing seat 802. The top of the mounting frame 803 is rotatably connected in the bearing seat 802. The top of the mounting frame 803 is connected with a driven gear 809 that meshes with the driving gear 808. By remotely controlling the start of the swing motor 807, the swing motor 807 drives the driving gear 808 to rotate. The driving gear 808 drives the driven gear 809 meshing with it to rotate. The driven gear 809 drives the mounting frame 803 to rotate in the bearing seat 802. The mounting frame 803 drives the adjusting rod 804 at its bottom to rotate accordingly.

[0020] As a preferred embodiment of the present utility model. The cross-section of the counterweight 806 is in a portal shape. A traveling structure is rotatably arranged at the bottom of the counterweight 806. The traveling structure is in contact with the bottom surface of the adjusting rod 804. By the rotation of the traveling mechanism, the counterweight 806 is driven to move on the adjusting rod 804, thereby adjusting the angle of the adjusting rod 804 and enabling the horizontal rotation of the adjusting rod 804.

[0021] As Figure 2 shown in the figure. A rack 810 is parallelly installed at the bottom of the adjusting rod 804. The traveling mechanism includes a mounting shaft and a traveling gear 811 connected to the mounting shaft. The traveling gear 811 meshes with the rack 810. A driving motor for the rotation of the mounting shaft and a DC power supply are arranged on the side wall of the counterweight 806. The driving motor is in signal connection with the remote controller. By controlling the driving motor to start through the remote controller, the driving motor drives the traveling gear 811 to rotate through the mounting shaft. The traveling gear 811 travels along the adjusting rod 804 through the rack 810, driving the counterweight 806 to reciprocate axially along the adjusting rod 804. A limiting block 812 is installed at the end of the adjusting rod 804. The limiting block 812 is used to prevent the counterweight 806 from moving out of the adjusting rod 804.

[0022] As a preferred embodiment of the present utility model. Two guide wheels are rotatably arranged inside the guide head 805. An annular groove for accommodating the towing rope is arranged on the outer peripheral surface of the guide wheel. The two guide wheels can not only guide the towing rope but also reduce the friction between the towing rope and the guide head 805, improving the smoothness of the rope-laying process.

Claims

1. A vertical shaft dredging blasting device, characterized in that: The utility model comprises an unwinding mechanism (5), a helium balloon (3) connected to the movable end of a traction rope on the unwinding mechanism (5), an explosive bag (1) fixed to the top of the helium balloon (3), a detonating cord (2) connected to the explosive bag (1), and an adjusting component (8) installed on one side of the shaft for pulling the traction rope, wherein an adjusting rod (804) capable of vertical rotation and horizontal swing is arranged in the adjusting component (8), a guide head (805) is arranged at one end of the adjusting rod (804), and the traction rope passes through the guide head (805).

2. A shaft dredging blasting device as claimed in claim 1, characterized in that: The adjustment assembly (8) comprises a mounting seat (801) and a mounting frame (803) vertically rotatably connected to the bottom of the mounting seat (801); the adjustment rod (804) is horizontally rotatably mounted at the bottom of the mounting frame (803); one side of the mounting seat (801) is connected to a swing motor (807) for driving the mounting frame (803) to rotate vertically; a counterweight (806) is slidably mounted on the other end of the adjustment rod (804); and when the counterweight (806) is located at the end of the adjustment rod (804), the adjustment rod (804) is in a horizontal state.

3. A shaft dredging blasting device as claimed in claim 2, characterized in that: The output end of the swing motor (807) is connected to a driving gear (808), a bearing seat (802) is provided at the bottom of the mounting seat (801), the top of the mounting frame (803) is rotatably connected in the bearing seat (802), and the top of the mounting frame (803) is connected to a driven gear (809) meshing with the driving gear (808).

4. A shaft dredging blasting device as claimed in claim 2, characterized in that: The cross-section of the counterweight block (806) is gate-shaped, and a walking structure is rotatably provided at the bottom of the counterweight block (806), and the walking structure is fitted with the bottom surface of the adjustment rod (804).

5. A shaft dredging blasting device as claimed in claim 4, characterized in that: A rack (810) is installed in parallel at the bottom of the adjustment rod (804), the walking mechanism comprises a mounting shaft and a walking gear (811) connected to the mounting shaft, the walking gear (811) is meshed with the rack (810), and a driving motor and a DC power supply for rotating the mounting shaft are arranged on the side wall of the counterweight block (806), and the driving motor is connected to the remote controller signal.

6. A shaft dredging blasting device as claimed in claim 1, characterized in that: Two guide wheels are rotatably arranged inside the guide head (805), and the outer peripheral surfaces of the guide wheels are provided with an annular groove for accommodating the traction rope.

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