Fixed-point drilling equipment for coal seam blasting

Abstract

The utility model relates to the technical field of coal seam blasting, in particular to fixed-point drilling equipment for coal seam blasting, which comprises a mounting seat, an extrusion plate is arranged on one side of the mounting seat, a speed reducing motor is embedded on the mounting seat, the output end of the speed reducing motor is detachably connected with a drilling barrel, an annular plate is sleeved on the outer side of the drilling barrel, and the annular plate is provided with a hole. The annular plate is rotationally connected with balls which are annularly distributed at equal intervals, the bottom of the annular plate is fixedly connected with a holding rod, and the side wall of the annular plate is provided with a fixing assembly used for assisting in positioning. The positioning rod and the connecting pipe are matched with hydraulic oil in the hollow connecting ring, so that the positioning rod is inserted into a coal seam for positioning work, the distance between the annular plate and the coal seam is constant, and the situation that the drilling accuracy is affected due to the fact that the position of a drilling cylinder deviates in the coal seam drilling process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal seam blasting technical field especially relates to a fixed point drilling equipment for coal seam blasting. BACKGROUND

[0002] Coal seam is the layered solid combustible mineral product which is transformed from plant remains through complex biochemical action and geological action, and it is present in coal-bearing rock series and located between roof and floor rocks.

[0003] When the coal mine is blasted, the coal seam needs to be drilled, and then the explosive is filled in the drilling hole to realize the blasting work. At present, when the coal seam is drilled, the drilling face of the coal seam is uneven during the drilling process of the existing drilling equipment, which easily causes the drilling deviation, and it is difficult to take out the coal seam in the drilling cylinder after drilling through the drilling cylinder. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings in the above background art, the utility model provides a fixed point drilling equipment for coal seam blasting.

[0005] The technical implementation scheme of the utility model is: a fixed point drilling equipment for coal seam blasting, which comprises a mounting seat, one side of the mounting seat is provided with an extrusion plate, a speed reducer is embedded on the mounting seat, a drilling cylinder is detachably connected to the output end of the speed reducer, an annular plate is sleeved outside the drilling cylinder, a plurality of rolling balls are rotationally connected to the annular plate in a ring shape and equidistantly distributed, a handle rod is fixedly connected to the bottom of the annular plate, and a fixing assembly for auxiliary positioning is arranged on the side wall of the annular plate.

[0006] Further, the fixing assembly comprises a hollow connecting ring fixedly connected to the side wall of the annular plate, a plurality of connecting pipes are communicated with the side wall of the hollow connecting ring and are equidistantly distributed in a circumferential direction, a positioning rod is sealingly and slidingly connected in the connecting pipe, and the connecting pipe and the hollow connecting ring are filled with hydraulic oil.

[0007] Further, the end cross section of the positioning rod is conical, which is convenient for inserting into the coal seam for positioning.

[0008] Further, the other side wall of the annular plate is fixedly connected with a mounting ring, a plurality of water spraying pipes are communicated with the mounting ring and are equidistantly distributed in a circumferential direction, the water spraying pipes are inclined and penetrate through the mounting ring, a water inlet pipe is communicated with the bottom of the mounting ring, and a plurality of spring telescopic rods are fixedly connected between the mounting ring and the mounting seat and are symmetrically distributed.

[0009] Further, the water spraying pipes and the rolling balls are staggered, and the end of the water spraying pipe and the inner end of the rolling ball are on the same annular surface.

[0010] Further, the push plate is slidably connected in the drill cylinder, the drill cylinder is provided with symmetrically distributed sliding grooves, and the moving rods are slidably connected in the sliding grooves.

[0011] Further, the side wall of the mounting ring is fixedly connected with circumferentially equidistantly distributed connecting plates, the connecting plates are provided with clamping grooves, the side wall of the mounting seat is fixedly connected with circumferentially equidistantly distributed fixing plates, the fixing plates are slidably connected with wedge-shaped frames, the connecting spring is fixedly connected between the wedge-shaped frame and the fixing plate, the mounting seat is provided with a trigger assembly for releasing the fixing of the connecting plates, and the trigger assembly is connected with the mounting ring.

[0012] Further, the trigger assembly comprises circumferentially equidistantly distributed mounting frames fixedly connected to the side wall of the mounting seat, the mounting frames are rotatably connected with wire wheels, the side wall of the mounting seat is provided with clamping grooves, the clamping grooves are clamped with annular rods, the annular rods are fixedly connected with pull ropes, the pull ropes pass through the corresponding wire wheels and are fixedly connected with the wedge-shaped frames, the side wall of the mounting ring is fixedly connected with symmetrically distributed guide plates, the guide plates are provided with guide holes, and the moving rods are slidably connected in the guide holes.

[0013] The utility model has the advantages that: the positioning rod is inserted into the coal seam to perform positioning work, the distance between the annular plate and the coal seam is constant, the position of the drill cylinder is prevented from deviating during the drilling process of the coal seam, the accuracy of drilling is further affected, the drill cylinder can be guided through the ball, the annular plate can be moved and reset after drilling is completed by the cooperation of the spring telescopic rod and the mounting ring, the next drilling work is facilitated, the coal seam in the drill cylinder can be pushed out by the moving rod and the push plate, water is supplied to the water inlet pipe through the external water pipe, the water in the water inlet pipe flows into the water jet pipe through the mounting ring, and is then sprayed out, so that a large amount of coal powder generated during subsequent drilling is prevented from flying everywhere, and safety hazards caused by the use personnel inhaling the coal powder into the body are further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a three-dimensional structure schematic view of the annular plate of the utility model;

[0016] Figure 3 It is a three-dimensional structure schematic view of the drill cylinder of the utility model;

[0017] Figure 4 It is a three-dimensional structure schematic view of the fixing plate of the utility model;

[0018] Figure 5The utility model discloses a wedge-shaped frame three-dimensional structure schematic diagram.

[0019] The meanings of the reference signs in the drawing are as follows: 1 - mounting seat, 2 - extrusion plate, 3 - speed reducer motor, 4 - drill cylinder, 5 - annular plate, 6 - ball, 7 - handle, 8 - spring telescopic rod, 9 - hollow connecting ring, 10 - connecting pipe, 11 - positioning rod, 12 - mounting ring, 13 - water spraying pipe, 14 - water inlet pipe, 15 - push plate, 16 - sliding groove, 17 - moving rod, 18 - connecting plate, 19 - clamping groove, 20 - fixed plate, 21 - wedge-shaped frame, 22 - connecting spring, 23 - mounting frame, 24 - wire wheel, 25 - clamping groove, 26 - annular rod, 27 - pull rope, 28 - guide plate, 29 - guide hole. DETAILED DESCRIPTION

[0020] Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a preferred or alternative embodiment. It is explicitly contemplated that embodiments described herein can be combined with each other.

[0021] A fixed-point drilling equipment for coal seam blasting, as shown in Figures 1-5 The right side of the mounting seat 1 is fixedly connected with the extrusion plate 2, the right side of the extrusion plate 2 is provided with a sponge pad, the left side of the mounting seat 1 is embedded with the speed reducer motor 3, the output end of the speed reducer motor 3 is detachably connected with the drill cylinder 4, the outer side of the drill cylinder 4 is sleeved with the annular plate 5, the annular plate 5 is rotatably connected with six annular equidistantly distributed balls 6, the bottom of the annular plate 5 is fixedly connected with the handle 7, the left side wall of the annular plate 5 is provided with a fixing assembly for auxiliary positioning, the fixing assembly comprises a hollow connecting ring 9 fixedly connected to the left side wall of the annular plate 5, the left side wall of the hollow connecting ring 9 is communicated with three circumferentially equidistantly distributed connecting pipes 10, the connecting pipes 10 are sealingly and slidably connected with the positioning rods 11, the end part of the positioning rod 11 is in a tapered cross section, which is convenient for insertion and positioning in the coal seam, the connecting pipes 10 and the hollow connecting ring 9 are filled with hydraulic oil, when one of the positioning rods 11 firstly contacts the protruding part of the coal seam, the annular plate 5 is continuously moved, so that the positioning rod 11 firstly contacting the coal seam moves into the connecting pipe 10, the hydraulic oil in the hollow connecting ring 9 flows into the other two connecting pipes 10, so that the other two positioning rods 11 move outward and are inserted into the coal seam, thereby realizing the positioning work.

[0022] The right side wall of the annular plate 5 is fixedly connected with a mounting ring 12, six water spraying pipes 13 are communicated with the mounting ring 12 and are distributed at equal intervals in the circumferential direction, the water spraying pipes 13 are staggered with the rolling balls 6, the end of the water spraying pipe 13 is on the same ring surface with the inner end of the rolling ball 6, the water spraying pipe 13 is inclined and penetrates through the mounting ring 12, the bottom of the mounting ring 12 is communicated with a water inlet pipe 14, the mounting ring 12 and the mounting base 1 are fixedly connected with the spring telescopic rods 8 which are symmetrically distributed, water is supplied to the water inlet pipe 14 through an external water pipe, the water in the water inlet pipe 14 flows through the mounting ring 12 and flows into the water spraying pipe 13, and then is sprayed out, so that a large amount of coal powder is avoided from being scattered in the subsequent drilling process, and then the safety hazard caused by inhaling into the body of the user is avoided.

[0023] The push plate 15 is slidingly connected in the drill cylinder 4, the drill cylinder 4 is provided with two sliding grooves 16 which are symmetrically distributed in front and back, the moving rod 17 is slidingly connected in the sliding groove 16, the end of the moving rod 17 is threadedly connected with the push plate 15, the moving rod 17 is inserted into the sliding groove 16 and is threadedly connected with the push plate 15, and the push plate 15 is moved by the moving rod 17 to push the coal in the drill cylinder 4 out.

[0024] The right side wall of the mounting ring 12 is fixedly connected with four connecting plates 18 which are distributed at equal intervals in the circumferential direction, the connecting plate 18 is provided with a clamping groove 19, and the right side surface of the connecting plate 18 is an inclined surface, the left side wall of the mounting base 1 is fixedly connected with four fixed plates 20 which are distributed at equal intervals in the circumferential direction, the wedge-shaped frame 21 is slidingly connected with the fixed plate 20, the connecting spring 22 is fixedly connected between the wedge-shaped frame 21 and the fixed plate 20, the mounting base 1 is provided with a trigger assembly for releasing the fixing of the connecting plate 18, and the trigger assembly is connected with the mounting ring 12.

[0025] The trigger assembly comprises mounting frames 23 which are fixedly connected to the left side wall of the mounting base 1 and are distributed at equal intervals in the circumferential direction, the wire guide wheels 24 are rotatably connected with the mounting frame 23, the clamping groove 25 is formed in the left side wall of the mounting base 1, the annular rod 26 is clamped in the clamping groove 25, the pull rope 27 is fixedly connected with the annular rod 26, the pull rope 27 passes through the corresponding wire guide wheel 24 and is fixedly connected with the wedge-shaped frame 21, the right side wall of the mounting ring 12 is fixedly connected with two guide plates 28 which are symmetrically distributed in front and back, the guide hole 29 is formed in the guide plate 28, and the moving rod 17 is slidingly connected in the guide hole 29.

[0026] In use, the user inserts the drill cylinder 4 into the inside of the annular plate 5 and connects it with the output end of the speed reducer motor 3, and then the user connects the external water pipe with the water inlet pipe 14 and supplies water, the water in the water inlet pipe 14 flows through the mounting ring 12 and flows into the water jet pipe 13, and then is sprayed out, thereby avoiding that a large amount of coal powder is scattered in the subsequent drilling process, and then the user holds the handle 7 with one hand and holds the mounting base 1 with the other hand and moves to the position where drilling is needed, and then the user puts the shoulder against the pressing plate 2 and moves the annular plate 5 to the coal seam drilling position through the handle 7, in this process, one of the positioning rods 11 first contacts the protruding part of the coal seam, at this time, the annular plate 5 is continuously moved, thereby enabling the positioning rod 11 first contacting the coal seam to move into the connecting pipe 10, and the hydraulic oil in the hollow connecting ring 9 flows into the other two connecting pipes 10, so that the other two positioning rods 11 move outward and are stuck into the coal seam, thereby achieving the positioning work, and then the user starts the speed reducer motor 3 to work and pushes the pressing plate 2 with the shoulder, thereby enabling the drill cylinder 4 to move to the coal seam, and thereby the drill cylinder 4 is rotated by the speed reducer motor 3 to work to drill the coal seam, as the drill cylinder 4 gradually drills into the coal seam, the spring telescopic rod 8 is compressed, and the drill cylinder 4 moves into the coal seam to push the push plate 15 to move, in the process that the mounting base 1 moves to the side of the mounting ring 12, when the connecting plate 18 contacts the wedge-shaped frame 21, the mounting base 1 continues to move, and the inclined surface of the connecting plate 18 pushes the wedge-shaped frame 21 to move outward, and the connecting spring 22 is stretched, when the connecting plate 18 no longer presses the wedge-shaped frame 21, the wedge-shaped frame 21 moves and is clamped into the clamping groove 19 under the action of the connecting spring 22, after the drilling is completed, the user reversely rotates the drill cylinder 4 by the speed reducer motor 3, the user gradually moves the drill cylinder 4 out, the speed reducer motor 3 is turned off after the drill cylinder 4 is moved out, then the user passes the moving rod 17 through the guide hole 29 and the sliding groove 16 and threadedly connects it with the push plate 15, then the user moves the annular rod 26 out of the clamping groove 25 and moves it to the left, the annular rod 26 moves through the pull rope 27 to move the wedge-shaped frame 21 out of the clamping groove 19, thereby releasing the fixation of the connecting plate 18, and at the same time, the annular plate 5 can gradually move and return to the initial position under the elastic force of the spring telescopic rod 8, the push plate 15 moves along with the mounting ring 12 through the moving rod 17, thereby facilitating the push out of the coal in the drill cylinder 4.

[0027] It should be understood that the embodiments are only used for illustrating the present application and are not used for limiting the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various changes or modifications to the present application, and these equivalent forms also fall within the scope defined by the claims of the present application.

Claims

1. A fixed-point drilling device for coal seam blasting, characterized in that: The utility model provides a coal seam drilling device, including the mounting seat (1), one side of mounting seat (1) is provided with extrusion board (2), the mounting seat (1) is embedded with speed reducer motor (3), the output end of speed reducer motor (3) is detachably connected with the drill cylinder (4), the outside of drill cylinder (4) is equipped with annular plate (5), annular plate (5) is rotatably connected with the ball (6) of annular equidistance distribution, the bottom of annular plate (5) is fixedly connected with the handle bar (7), and the lateral wall of annular plate (5) is equipped with the fixed component for assisting positioning.

2. A spot drilling apparatus for coal seam blasting as claimed in claim 1 wherein: The fixed component includes a hollow connecting ring (9) fixed to the lateral wall of the annular plate (5), the lateral wall of the hollow connecting ring (9) is connected with a plurality of connecting pipes (10) distributed equidistantly in the circumferential direction, a positioning rod (11) is sealingly and slidably connected in the connecting pipes (10), and the connecting pipes (10) and the hollow connecting ring (9) are filled with hydraulic oil.

3. A spot drilling apparatus for coal seam blasting as defined in claim 2, wherein: The end portion of the positioning rod (11) has a tapered cross section, facilitating insertion into the coal seam for positioning.

4. A spot drilling apparatus for coal seam blasting as defined in claim 2, wherein: Another lateral wall of the annular plate (5) is fixedly connected with a mounting ring (12), the mounting ring (12) is connected with a plurality of water spraying pipes (13) distributed equidistantly in the circumferential direction, the water spraying pipes (13) are inclined and penetrate through the mounting ring (12), the bottom of the mounting ring (12) is connected with a water inlet pipe (14), and the mounting ring (12) and the mounting seat (1) are fixedly connected with a plurality of spring telescopic rods (8) distributed symmetrically.

5. A spot drilling apparatus for coal seam blasting as defined in claim 4, wherein: The water spraying pipes (13) and the balls (6) are staggered, and the end portion of the water spraying pipe (13) and the inner end of the ball (6) are located on the same annular surface.

6. A spot drilling apparatus for coal seam blasting as defined in claim 5, wherein: The drill cylinder (4) is slidably connected with a push plate (15), the drill cylinder (4) is provided with a plurality of sliding grooves (16) distributed symmetrically, the sliding grooves (16) are slidably connected with a plurality of moving rods (17), and the end portion of the moving rod (17) is threadedly connected with the push plate (15).

7. A spot drilling apparatus for coal seam blasting as defined in claim 6, wherein: The lateral wall of the mounting ring (12) is fixedly connected with a plurality of connecting plates (18) distributed equidistantly in the circumferential direction, the connecting plates (18) are provided with a plurality of clamping grooves (19), the lateral wall of the mounting seat (1) is fixedly connected with a plurality of fixing plates (20) distributed equidistantly in the circumferential direction, the fixing plates (20) are slidably connected with a plurality of wedge-shaped frames (21), the wedge-shaped frames (21) and the fixing plates (20) are fixedly connected with a plurality of connecting springs (22), the mounting seat (1) is provided with a trigger assembly for releasing the fixing of the connecting plates (18), and the trigger assembly is connected with the mounting ring (12).

8. A spot drilling apparatus for coal seam blasting as defined in claim 7, wherein: The trigger assembly comprises mounting racks (23) fixed to the side wall of the mounting base (1) and distributed in a circumferential equidistant manner, a wire guide wheel (24) is rotationally connected to the mounting rack (23), a clamping groove (25) is formed in the side wall of the mounting base (1), an annular rod (26) is clamped in the clamping groove (25), a pull rope (27) is fixed to the annular rod (26), the pull rope (27) passes through the corresponding wire guide wheel (24) and is fixed to the wedge-shaped frame (21), the side wall of the mounting ring (12) is fixed with symmetrically distributed guide plates (28), guide holes (29) are formed in the guide plates (28), and the moving rod (17) is slidingly connected in the guide holes (29).

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