Automatic charging equipment for blasting of coal mine tunnel roof

Abstract

The utility model discloses automatic charging equipment for coal mine tunnel roof blasting, which belongs to the technical field of coal mine safety and comprises a support, moving wheels are connected to the bottom end of the support, a connecting shaft is fixedly connected to the axis of each moving wheel, a bottom plate fixer is arranged on each connecting shaft, and a supporting device is welded to the top end of the support. The supporting device is movably connected with a power box, one end of the power box is connected with an explosive loading device, the other end of the power box is connected with an explosive conveying pipe, and the explosive loading device is connected with the explosive conveying pipe. According to the utility model, automatic charging can be realized, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine safety, and in particular relates to automatic charging equipment for coal mine tunnel roof blasting. Background Art

[0002] During the mining process of the working face in deep mines, the roof of the coal seam is a thick and hard rock layer. After the working face is mined, the thick and hard rock layer is difficult to collapse, forming a large area of ​​suspended roof in the goaf. The suspended roof causes the coal body to accumulate a large amount of elastic energy, creating hidden dangers for the occurrence of impact ground pressure on site. At the same time, the high dynamic load stress caused by the collapse of the large mask suspended roof is superimposed on the on-site advanced support stress, which is easy to induce disasters such as impact ground pressure on site. Therefore, it is necessary to pre-splitting blast the roof of the working face tunnel deep hole. The vertical height of the pre-splitting blasting scheme of the roof of some mines can reach 50 to 60 meters. The existing technology uses manual charging, which has the defects of high labor intensity of workers and low construction efficiency. Utility Model Content

[0003] The utility model aims to provide an automatic charging device for coal mine tunnel roof blasting, which can realize automatic charging and improve construction efficiency.

[0004] The technical solution adopted by the utility model is that the automatic charging equipment for coal mine tunnel roof blasting includes a bracket, a moving wheel is connected to the bottom end of the bracket, a connecting shaft is fixedly connected to the axis of the moving wheel, a bottom plate fixer is arranged on the connecting shaft, a supporting device is welded to the top end of the bracket, the supporting device is movably connected to a power box, and a charging device is connected to one end of the power box;

[0005] A wind driving device and a pushing wheel are arranged in sequence in the power box. The pushing wheel is close to one end of the charge loader. The explosive delivery pipe passes through the wind driving device and then passes between two rows of pushing wheels to be connected to the charge loader.

[0006] The utility model is also characterized in that:

[0007] The bracket includes a rectangular base plate, a group of first reinforcing ribs are diagonally connected to the rectangular base plate, another group of diagonally perpendicular second reinforcing ribs and third reinforcing ribs are respectively connected on both sides of the first reinforcing ribs, a symmetrical first vertical beam and a second vertical beam are fixed to the first reinforcing rib, the vertices of the first vertical beam and the second vertical beam are respectively connected to oblique beams at the two vertices closest to the rectangular base plate, and a supporting device is fixed between the first vertical beam and the second vertical beam.

[0008] The supporting device includes a first supporting plate and a second supporting plate in the shape of a right-angled trapezoid, and inclination dials are welded on the upper bottom of the first supporting plate and the upper bottom of the second supporting plate. One side of the right angle of the first supporting plate is welded to the first vertical beam, and one side of the right angle of the second supporting plate is welded to the second vertical beam. An angle fixing valve is connected between one side of the hypotenuse of the first supporting plate and one side of the hypotenuse of the second supporting plate, and a connecting rod is passed through the angle fixing valve, and one end of the connecting rod is hinged to the power box.

[0009] An air duct interface is provided on the outside of the power box, and its position corresponds to the position of the wind drive device. A length counter and a pressure alarm are also provided on the outside of the power box, and the position of the length counter corresponds to the connection point of the loader and the explosive delivery pipe.

[0010] An acoustic wave detector and a micro camera are arranged inside one end of the charge loader away from the explosive delivery pipe. The acoustic wave detector and the micro camera are located at symmetrical positions on the inner wall of the charge loader. A pressure sensor is arranged inside the other end of the charge loader.

[0011] The explosive delivery pipe is a rubber pipe with a metal layer wrapped around its outer layer, and a plurality of grooves are arranged on the metal layer.

[0012] The beneficial effects of the utility model are:

[0013] The utility model discloses an automatic charging device for roof blasting in coal mine tunnels, which improves the degree of automation of roof blasting through the cooperation of a power box and a charger, reduces the number of personnel involved in roof blasting operations, reduces the work intensity of personnel involved in roof blasting operations, increases roof blasting efficiency, and reduces the safety risk of roof blasting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the utility model of the automatic charging device for coal mine tunnel roof blasting;

[0015] Figure 2 It is a side view of the utility model of the automatic charging equipment for coal mine tunnel roof blasting;

[0016] Figure 3 It is a cross-sectional view of the charge charger disclosed in the utility model;

[0017] Figure 4 It is a cross-sectional view of the power box disclosed in the utility model;

[0018] Figure 5 It is a plan view of the explosive delivery pipe disclosed in the utility model.

[0019] In the figure, 1. charge loader, 2. length counter, 3. power box, 4. connecting rod, 5. inclination dial, 6. supporting device, 601. first supporting plate, 602. second supporting plate, 603. angle fixing valve, 7. air duct interface, 8. bracket, 801. rectangular bottom plate, 802. first reinforcing rib, 803. second reinforcing rib, 804. third reinforcing rib, 805. first vertical beam, 806. second vertical beam, 807. oblique beam, 9. moving wheel, 10. explosive delivery pipe, 11. bottom plate fixer, 12. camera, 13. sound wave detector, 14. pressure sensor, 15. push wheel, 16. wind drive device, 17. pressure alarm, 18. groove, 19. wind pressure display. DETAILED DESCRIPTION

[0020] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Embodiment 1:

[0022] like Figure 1 and Figure 2 As shown, the automatic charging device for coal mine tunnel roof blasting disclosed by the utility model comprises a bracket 8, a moving wheel 9 is connected to the bottom end of the bracket 8, a connecting shaft is fixedly connected to the axis of the moving wheel 9, an inverted triangle-shaped bottom plate fixer 11 is arranged on the connecting shaft, which is convenient for inserting into the bottom plate rock layer, a supporting device 6 is welded to the top of the bracket 8, the supporting device 6 is movably connected to the power box 3, one end of the power box 3 is connected to the charger 1, and the other end of the power box 3 is connected to the explosive delivery pipe 10;

[0023] like Figure 4 As shown, a wind driving device 16 and a pushing wheel 15 are sequentially arranged in the power box 3. The pushing wheel 15 is close to one end of the charge loader 1. The explosive delivery pipe 10 passes through the wind driving device 16 and then passes between two rows of pushing wheels 15 to be connected to the charge loader 1.

[0024] After the roof blasting drilling construction in the coal mine tunnel is completed, the hand-held bracket 8 is used to push the equipment to the corresponding position of the drilling hole with the help of the moving wheels 9, and then the power box 3 is rotated according to the support device 6 to be consistent with the inclination angle of the roof blasting hole, and the position of the equipment is adjusted to ensure that the loader 1 can smoothly enter the roof blasting hole, and then the bottom plate fixer 11 is inserted into the bottom plate to fix the equipment.

[0025] The explosive roll is placed in the charge holder 1. After the explosive roll is loaded into the charge holder 1, the upper end is exposed, and soft barbs are arranged around the exposed part, which can ensure that the explosive roll will not slip out of the blasting hole.

[0026] Use a handheld remote control to turn on the equipment, turn on the pipe feed button, the wind drive device 16 drives the push wheel 15 to rotate under the action of wind, and the explosive delivery pipe 10 moves forward driven by the two rows of push wheels 15, and the explosive delivery pipe 10 pushes the charge loader 1 to move into the top plate blasting hole.

[0027] After the explosives are delivered to the designed depth in the hole, the tube retracting button of the remote controller is operated to control the push wheel 15 to rotate in the opposite direction, thereby driving the explosive delivery pipe 10 to retract the charge device 1 from the charge blasting hole.

[0028] Put the explosive into the charge loader 1, repeat the first operation, and send the explosive into the top plate blasting hole. Repeat the same operation until all the explosives are sent into the top plate blasting hole.

[0029] Embodiment 2:

[0030] Based on Example 1,

[0031] The bracket 8 includes a rectangular base plate 801, a group of diagonally connected first reinforcing ribs 802 are connected to the rectangular base plate 801, and another group of diagonally perpendicular second reinforcing ribs 803 and third reinforcing ribs 804 are respectively connected to the two sides of the first reinforcing rib 802, and the first reinforcing rib 802 is fixedly connected with a symmetrical first vertical beam 805 and a second vertical beam 806, and the vertices of the first vertical beam 805 and the second vertical beam 806 are respectively connected to oblique beams 807 with two vertices closest to the rectangular base plate 801, and a supporting device 6 is fixedly connected between the first vertical beam 805 and the second vertical beam 806.

[0032] The supporting device 6 includes a first supporting plate 601 and a second supporting plate 602 in the shape of a right-angled trapezoid, and an inclination dial 5 is welded on the upper bottom of the first supporting plate 601 and the upper bottom of the second supporting plate 602. One side of the right angle of the first supporting plate 601 is welded to the first vertical beam 805, and one side of the right angle of the second supporting plate 602 is welded to the second vertical beam 806. An angle fixing valve 603 is connected between one side of the hypotenuse of the first supporting plate 601 and one side of the hypotenuse of the second supporting plate 602. A connecting rod 4 is passed through the angle fixing valve 603, and one end of the connecting rod 4 is hinged to the power box 3.

[0033] After the roof blasting drilling construction in the coal mine tunnel is completed, the hand-held bracket 8 is used to push the equipment to the corresponding position of the drilling hole with the help of the moving wheels 9, and then the power box 3 is rotated according to the joint action of the connecting rod 4 and the angle fixing valve 603 to be consistent with the inclination angle of the roof blasting hole, and the position of the equipment is adjusted to ensure that the loader 1 can smoothly enter the roof blasting hole, and then the bottom plate fixer 11 is inserted into the bottom plate to fix the equipment.

[0034] The explosive roll is placed in the charge holder 1. After the explosive roll is loaded into the charge holder 1, the upper end is exposed, and soft barbs are arranged around the exposed part, which can ensure that the explosive roll will not slip out of the blasting hole.

[0035] Use a handheld remote control to turn on the equipment, turn on the pipe feed button, the wind drive device 16 drives the push wheel 15 to rotate under the action of wind, and the explosive delivery pipe 10 moves forward driven by the two rows of push wheels 15, and the explosive delivery pipe 10 pushes the charge loader 1 to move into the top plate blasting hole.

[0036] After the explosives are delivered to the designed depth in the hole, the tube retracting button of the remote controller is operated to control the push wheel 15 to rotate in the opposite direction, thereby driving the explosive delivery pipe 10 to retract the charge device 1 from the charge blasting hole.

[0037] Put the explosive into the charge loader 1, repeat the first operation, and send the explosive into the top plate blasting hole. Repeat the same operation until all the explosives are sent into the top plate blasting hole.

[0038] Embodiment 3:

[0039] Based on Example 2,

[0040] An air duct interface 7 is provided on the outside of the power box 3, and the position of the air duct interface 7 corresponds to the position of the wind drive device 16. A wind pressure display 19 is also provided above the air duct interface 7 to display the real-time wind pressure. A length counter 2 and a pressure alarm 17 are also provided on the outside of the power box 3, and the position of the length counter 2 corresponds to the position of the connection point between the loader 1 and the explosive delivery pipe 10.

[0041] An acoustic wave detector 13 and a micro camera 12 are arranged inside one end of the charge container 1 away from the explosive delivery pipe 10. The acoustic wave detector 13 and the micro camera 12 are located at symmetrical positions on the inner wall of the charge container 1. A pressure sensor 14 is arranged inside the other end of the charge container 1.

[0042] like Figure 5 As shown, the explosive delivery pipe 10 is a rubber pipe with a metal layer wrapped around the outer layer. A plurality of grooves 18 are arranged on the metal layer, and the distance between the grooves 18 is consistent with the tooth pitch on the pushing wheel.

[0043] After the roof blasting drilling construction in the coal mine tunnel is completed, the hand-held bracket 8 is used to push the equipment to the corresponding position of the drilling hole with the help of the moving wheels 9, and then the power box 3 is rotated according to the joint action of the connecting rod 4 and the angle fixing valve 603 to be consistent with the inclination angle of the roof blasting hole, and the position of the equipment is adjusted to ensure that the loader 1 can smoothly enter the roof blasting hole, and then the bottom plate fixer 11 is inserted into the bottom plate to fix the equipment.

[0044] The explosive roll is placed in the charge holder 1. After the explosive roll is loaded into the charge holder 1, the upper end is exposed, and soft barbs are arranged around the exposed part, which can ensure that the explosive roll will not slip out of the blasting hole.

[0045] Use a handheld remote control to turn on the equipment, turn on the pipe feed button, the wind drive device 16 drives the push wheel 15 to rotate under the action of wind, and the explosive delivery pipe 10 moves forward driven by the two rows of push wheels 15, and the explosive delivery pipe 10 pushes the charge loader 1 to move into the top plate blasting hole.

[0046] like Figure 3 As shown, a camera 12 and an acoustic wave detector 13 are distributed on the inner wall of the upper end of the charge loader 1. During the charging process, the collapse of the hole can be understood through the peek display screen and the acoustic wave detection display screen on the remote control to ensure smooth pushing. If an abnormal situation occurs in the hole, the drug delivery can be stopped in advance to avoid damage to the charge loader and explosives.

[0047] There is a pressure sensor 14 at the lower end of the charge 1. When there is water on the top plate in the hole, the operation of the camera 12 and the acoustic wave detector 13 will be affected. When the explosive encounters resistance during charging, the pressure alarm light on the remote control will alarm in time, and the construction personnel will stop charging in time to avoid damage to the charge device and explosives.

[0048] After the explosives are delivered to the designed depth in the hole, the tube retracting button of the remote controller is operated to control the push wheel 15 to rotate in the opposite direction, thereby driving the explosive delivery pipe 10 to retract the charge device 1 from the charge blasting hole.

[0049] Put the explosive into the charge loader 1, repeat the first operation, and send the explosive into the top plate blasting hole. Repeat the same operation until all the explosives are sent into the top plate blasting hole.

Claims

1. Automatic charging equipment for coal mine tunnel roof blasting, characterized in that: The invention comprises a bracket (8), the bottom end of the bracket (8) is connected to a moving wheel (9), the axis of the moving wheel (9) is fixedly connected to a connecting shaft, the connecting shaft is provided with a bottom plate fixer (11), the top end of the bracket (8) is welded with a supporting device (6), the supporting device (6) is movably connected to a power box (3), one end of the power box (3) is connected to a charge loader (1), and the other end of the power box (3) is connected to an explosive delivery pipe (10); A wind driving device (16) and a pushing wheel (15) are sequentially arranged in the power box (3), wherein the pushing wheel (15) is close to one end of the charge loader (1), and the explosive delivery pipe (10) passes through the wind driving device (16) and then passes between two rows of the pushing wheels (15) to be connected to the charge loader (1).

2. The automatic charging equipment for coal mine tunnel roof blasting according to claim 1 is characterized in that: The support (8) comprises a rectangular bottom plate (801), a group of diagonally connected first reinforcing ribs (802) of the rectangular bottom plate (801), two sides of the first reinforcing rib (802) are respectively connected to another group of diagonally perpendicular second reinforcing ribs (803) and third reinforcing ribs (804), the first reinforcing rib (802) is fixedly connected to a symmetrical first vertical beam (805) and a second vertical beam (806), the vertex of the first vertical beam (805) and the vertex of the second vertical beam (806) are respectively connected to oblique beams (807) at two vertices closest to the rectangular bottom plate (801), and a supporting device (6) is fixedly connected between the first vertical beam (805) and the second vertical beam (806).

3. The automatic charging equipment for coal mine tunnel roof blasting according to claim 2 is characterized in that: The support device (6) comprises a first support plate (601) and a second support plate (602) in the shape of a right-angled trapezoid; an upper bottom of the first support plate (601) and an upper bottom of the second support plate (602) are both welded with an inclination dial (5); one right-angled side of the first support plate (601) is welded to the first vertical beam (805); one right-angled side of the second support plate (602) is welded to the second vertical beam (806); an angle fixing valve (603) is connected between one side of the hypotenuse of the first support plate (601) and one side of the hypotenuse of the second support plate (602); a connecting rod (4) is inserted into the angle fixing valve (603); one end of the connecting rod (4) is hinged to the power box (3).

4. The automatic charging equipment for coal mine tunnel roof blasting according to claim 1, characterized in that: The power box (3) is provided with an air duct interface (7) on the outside, and the position of the air duct interface (7) corresponds to the position of the wind drive device (16). The power box (3) is also provided with a length counter (2) and a pressure alarm (17) on the outside, and the position of the length counter (2) corresponds to the position of the connection point between the charge loader (1) and the explosive delivery pipe (10).

5. The automatic charging equipment for coal mine tunnel roof blasting according to claim 1, characterized in that: An acoustic wave detector (13) and a micro camera (12) are arranged inside one end of the charge container (1) away from the explosive delivery pipe (10); the acoustic wave detector (13) and the micro camera (12) are located at symmetrical positions on the inner wall of the charge container (1); and a pressure sensor (14) is arranged inside the other end of the charge container (1).

6. The automatic charging equipment for coal mine tunnel roof blasting according to claim 1, characterized in that: The explosive delivery pipe (10) is a rubber pipe with a metal layer wrapped around its outer layer, and a plurality of grooves (18) are provided on the metal layer.

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