Positioning device for mine blasting hole

Abstract

The utility model provides a positioning device for a mine blasting hole, which belongs to the technical field of blasting construction and comprises a base and a top cover, the base is connected with the top cover through a blooming frame, blooming branches penetrating through the side wall of the base are uniformly and slidably arranged on the blooming frame in the circumferential direction, and a positioning target ring is fixedly connected to one end of each blooming branch, which extends outwards. The inner cavity of the base is provided with a folding and unfolding assembly used for driving all the blooming branches to be folded and unfolded at the same time, the folding and unfolding assembly drives the multiple circumferential blooming branches to drive the positioning target ring to be circumferentially scattered outwards, the outward moving distance of the positioning target ring is adjusted according to the position of the blasting hole, and the positioning target ring is made to move to the position where the blasting hole is formed; therefore, the positions of the multiple blast holes in the circumferential array can be determined at the same time, the distances between the multiple blast holes are the same, then uniform blasting can be conducted on the construction position, and the blasting treatment effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of blasting construction, specifically to a positioning device of mine blasting blast hole. BACKGROUND

[0002] In the mine blasting process, drilling blast holes on the mine is a key link, according to the mining scheme and blasting requirements of the mine, professional personnel designs blast hole layout, usually adopts triangular, rectangular or plum blossom shape arrangement to ensure uniform blasting effect.

[0003] The related technology (publication number: CN215639433U) discloses a blast hole positioning device for mine blasting, which discloses the technical scheme: a positioning rod is rotatably installed on the blast hole seat, a plug rod and a positioning column are installed on the positioning rod, which facilitates positioning of the blast hole according to the construction drilling requirements, makes the distribution of the blast hole more accurate, can be uniformly arrayed at a certain shape, and increases the accuracy of mine blasting.

[0004] In the above disclosed technical scheme, the related technology has the following problems: in order to ensure the blasting effect, it is necessary to ensure that the interval distance between the blast holes is the same, and the measurement is carried out in sequence by manual mode, which will cause certain error, and for the circumferential blast hole positioning, it is necessary to ensure that the blast holes are arrayed in the same circumferential array to ensure the uniform effect of mine blasting, for this, we propose a new positioning device for mine blasting blast hole.

[0005] It should be noted that the information disclosed in the above background technology part is only used to strengthen the understanding of the background technology part of the present application, and therefore can include existing technology information known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at solving one of the technical problems existing in the prior art or related technology, in order to solve the problem of uniform positioning of blast hole in the above prior art, the utility model provides a positioning device for mine blasting blast hole, which adopts circumferential blast hole uniform positioning structure combined with locking structure to improve the blasting construction efficiency. Its specific technical scheme is:

[0007] A positioning device for mine blasting blast hole, comprising a base and a top cover, the base and the top cover are connected through a blooming frame, the blooming frame is slidably provided with blooming branches penetrating the side wall of the base in a circumferential direction, one end of the blooming branches outwardly expanding is fixedly connected with a positioning target ring, and the inner cavity of the base is provided with a folding assembly for driving all blooming branches to fold and unfold at the same time, and the top of the top cover is fixedly connected with a centering drill for locking the position of the base.

[0008] In the above technical scheme, the retractable assembly comprises a movable shaft rotatably arranged between the blooming frame and the base, an outer wall of the movable shaft is sleeved with a driving gear, a bottom of the blooming frame is rotatably arranged with a transmission shaft in a circumferential direction, an outer wall of the transmission shaft is sleeved with a driven gear engaged with the driving gear, a side wall of the blooming branch is arranged with a rack in an inner cavity of the base, an outer wall of the transmission shaft is sleeved with a driving gear engaged with the rack, and a bottom of the base is arranged with a locking member for locking a position of the positioning target ring.

[0009] The locking member comprises a rotating shaft rotatably arranged at the bottom of the base, the rotating shaft penetrates the bottom of the base and is connected with the movable shaft, an outer wall of the rotating shaft is fixedly connected with a clamping seat, the clamping seat is threadedly connected with a locking piece, and a bottom of the base is circumferentially arranged with a clamping groove engaged with the locking piece.

[0010] The circumferential outer wall of the blooming frame is uniformly arranged with notches, the blooming branches are slidingly arranged in the inner cavities of the notches, the top of the blooming frame is circumferentially and uniformly arranged with directional grooves, two directional grooves are arranged on both sides of each notch, an inner wall of the directional groove is arranged with a through groove extending to the inner cavity of the notch, and an outer wall of the blooming branch is fixedly connected with a sliding block.

[0011] The circumferential outer wall of the base is uniformly arranged with a giving slot communicated with the notch, and the rack penetrates the inner cavity of the giving slot.

[0012] An inner wall of the clamping groove is embedded with a rubber pad.

[0013] Compared with the prior art, the beneficial effects of the mine blasting borehole positioning device are as follows:

[0014] I. The retractable assembly drives the circumferential multiple blooming branches to drive the circumferential outward spreading of the positioning target ring, adjusts the outward moving distance of the positioning target ring according to the position of the blasting borehole, so that the positioning target ring moves to the position of the borehole, thereby simultaneously determining the positions of multiple circumferential array boreholes, the spacings between the multiple boreholes are the same, and the construction position can be uniformly blasted, thereby ensuring the blasting treatment effect.

[0015] II. When the blasting borehole is opened, the centering drill is rotated by holding the operating rods on both sides of the outer wall of the base, the base is fixed at the center by rotating the centering drill at the center of the blasting point, and then the positioning target ring is circumferentially diffused outward, thereby ensuring the accuracy of the borehole positioning.

[0016] III. When the borehole position is determined, the movable shaft drives the driving gear to rotate, the plurality of driven gears in peripheral engagement with the driving gear drives the transmission shaft to rotate, the transmission shaft drives the driving gear to rotate, the rack in engagement with the driving gear drives the blooming branch to slide in the slot wall, thereby spreading the plurality of positioning target rings in the circumference, and then locking the position of the plurality of positioning target rings through the locking member to avoid position deviation, ensuring the accuracy of the borehole position.

[0017] IV. In the process of rotating the movable shaft to drive the plurality of positioning target rings to spread in the circumference at the same time, the blooming branch drives the sliding block to slide in the inner wall of the directional groove, thereby ensuring the stability of the blooming branch sliding process, avoiding position deviation, and further ensuring the accuracy of the borehole position. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of the positioning device for the mine blasting borehole of the utility model Figure I ;

[0019] Figure 2 Structure diagram of the positioning device for the mine blasting borehole of the utility model Figure II ;

[0020] Figure 3 Structure diagram of the positioning device for the mine blasting borehole of the utility model

[0021] Figure 4 Structure diagram of the blooming frame part of the utility model

[0022] Figure 5 A local enlarged view of A in Figure 3 ;

[0023] Among them, Figures 1 to 5 The correspondence between the reference signs and the component names in the drawings is as follows: 1 - base, 2 - top cover, 3 - blooming frame, 4 - blooming branch, 5 - positioning target ring, 6 - centering drill, 7 - movable shaft, 8 - driving gear, 9 - driven gear, 10 - rotating shaft, 11 - clamping groove, 12 - clamping seat, 13 - locking member, 14 - rack, 15 - operating rod, 16 - slot, 17 - directional groove, 18 - sliding block, 19 - accommodation groove, 20 - transmission shaft, 21 - driving gear, 22 - through groove. DETAILED DESCRIPTION

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0025] The specific embodiments and the accompanying drawings will be described below. Figures 1-5 The present application will be further described, but the present application is not limited to these embodiments.

[0026] A positioning device for a mine blasting blast hole, comprising a base 1 and a top cover 2, the base 1 and the top cover 2 are connected through a blooming rack 3. The top cover 2 is fixed on the top of the blooming rack 3, and the blooming rack 3 is fixedly installed on the top of the inner cavity of the base 1. The blooming rack 3 is slidably provided with a blooming branch 4 penetrating the side wall of the base 1 in the circumferential direction. A circumferential slot 16 is sequentially formed in the circumferential outer wall of the circular blooming rack 3, and the slot width of the slot 16 corresponds to the blooming branch 4, so that the blooming branch 4 is slidably attached to the inner wall of the slot 16. The blooming branch 4 is fixedly connected with a positioning target ring 5 at one end thereof, and the inner cavity of the base 1 is provided with a folding assembly for driving all the blooming branches 4 to simultaneously expand and contract.

[0027] The positioning target ring 5 is driven by the folding assembly to spread outwards in the circumferential direction, and the distance of the outward movement of the positioning target ring 5 is adjusted according to the position of the blast hole, so that the positioning target ring 5 moves to the position where the blast hole is formed, thereby simultaneously determining the positions of multiple blast holes arranged in the circumferential direction, and the spacing between the multiple blast holes is the same, thereby enabling the construction position to be evenly blasted and ensuring the effect of the blasting treatment.

[0028] The top cover 2 is fixedly connected with a centering drill 6 for locking the position of the base 1. When the blast hole is formed, the centering drill 6 is rotated by holding the operating rods 15 on both sides of the outer wall of the base 1, and the base 1 is fixed at the center as the centering drill 6 rotates at the center of the blasting point, and then the positioning target ring 5 is spread outwards in the circumferential direction, thereby ensuring the accuracy of the blast hole positioning.

[0029] The releasing assembly comprises a movable shaft 7 rotatably arranged between the releasing frame 3 and the base 1. Bearings are embedded at the center of the bottom of the releasing frame 3 and the center of the bottom of the inner cavity of the base 1, and the two ends of the movable shaft 7 are respectively embedded and arranged in the bearings. The movable shaft 7 is vertically arranged between the base 1 and the releasing frame 3. The outer wall of the movable shaft 7 is sleeved with a driving gear 8, and the driving gear 8 is fixedly sleeved on the outer wall of the movable shaft 7 through a mounting hole formed in the center. The bottom of the releasing frame 3 is circumferentially and uniformly rotatably provided with a transmission shaft 20. Bearings are embedded at the bottom of the releasing frame 3 between every two releasing branches 4, and the upper end of the transmission shaft 20 is embedded and arranged in the bearing.

[0030] The outer wall of the transmission shaft 20 is sleeved with a driven gear 9 engaged with the driving gear 8. The outer wall of each transmission shaft 20 is fixedly sleeved with a driven gear 9, so that the circumferential plurality of driven gears 9 are simultaneously engaged with the driving gear 8 at the center. The side wall of the releasing branch 4 is provided with a rack 14 located in the inner cavity of the base 1. Each releasing branch 4 is fixedly provided with a rack 14 towards the adjacent side, so that the rack 14 slides on the bottom of the releasing frame 3 during the sliding of the releasing branch 4 in the slot 16. The outer wall of the transmission shaft 20 is sleeved with a driving gear 21 engaged with the rack 14, and the bottom of the base 1 is provided with a locking member for locking the position of the positioning target ring 5. The driving gear 21 is fixedly sleeved on the outer wall of the transmission shaft 20 through a mounting hole formed in the center, and each driving gear 21 is engaged with the corresponding rack 14.

[0031] When the blast hole position is determined, the movable shaft 7 is rotated, so that the movable shaft 7 drives the driving gear 8 to rotate, so that the plurality of driven gears 9 engaged with the driving gear 8 circumferentially drive the transmission shaft 20 to rotate, so that the transmission shaft 20 drives the driving gear 21 to rotate, so that the rack 14 engaged with the driving gear 21 drives the releasing branch 4 to slide on the inner wall of the slot 16, so that the plurality of positioning target rings 5 are circumferentially dispersed, and then the position of each positioning target ring 5 is locked by the locking member to avoid position deviation, thereby ensuring the accuracy of the blast hole position.

[0032] It is worth noting that the locking member comprises a rotating shaft 10 rotatably arranged at the bottom of the base 1, and the rotating shaft 10 penetrates the bottom of the base 1 and is connected with the movable shaft 7. The upper end of the rotating shaft 10 penetrates the bottom of the base 1 and extends into the inner cavity and is fixedly connected with the lower end of the movable shaft 7. The outer wall of the rotating shaft 10 is fixedly connected with a clamping seat 12, the clamping seat 12 is threadedly connected with a locking piece 13, and the bottom of the base 1 is circumferentially provided with a clamping groove 11 engaged with the locking piece 13. An operation wheel is fixedly sleeved on the outer wall of the rotating shaft 10.

[0033] The rotating shaft 10 is rotated by the operation wheel, the movable shaft 7 drives the circumferential positioning target ring 5 to spread out to the outside through the driving gear 8, after being adjusted to the position of the blast hole, the locking piece 13 is screwed on the clamping seat 12, the locking piece 13 can be a bolt, the locking piece 13 is clamped on the inner wall of the clamping groove 11, so that the rotating shaft 10 is locked, the position of the positioning target ring 5 is prevented from deviating, and the accuracy of the position of the blast hole is ensured.

[0034] In addition, the circumferential outer wall of the blooming frame 3 is uniformly provided with a slot 16. The blooming branch 4 is slidingly arranged in the inner cavity of the slot 16. The top of the blooming frame 3 is uniformly provided with a directional slot 17. Two parallel directional slots 17 are arranged on the two sides of each slot 16. The directional slot 17 is arranged on the blooming frame 3 on the two sides of each slot 16. The inner wall of the directional slot 17 is provided with a through groove 22 extending into the inner cavity of the slot 16. The outer wall of the blooming branch 4 is fixedly connected with a sliding block 18. The sliding block 18 is slidingly arranged in the inner cavity of the directional slot 17 after penetrating through the through groove 22. The sliding block 18 is L-shaped. One end of the sliding block 18 is fixedly arranged on the side wall of the blooming branch 4. The other end of the sliding block 18 is slidingly arranged on the inner wall of the directional slot 17 after penetrating through the through groove 22.

[0035] During the rotation of the movable shaft 7 to drive the plurality of positioning target rings 5 to spread out circumferentially, the blooming branch 4 drives the sliding block 18 to slide on the inner wall of the directional slot 17, so that the stability of the sliding process of the blooming branch 4 is ensured, the position deviation is avoided, and the accuracy of the position of the blast hole is ensured.

[0036] In addition, the circumferential outer wall of the base 1 is uniformly provided with a giving slot 19 which is in communication with the slot 16, and the rack 14 penetrates through the inner cavity of the giving slot 19.

[0037] The giving slot 19 is arranged, so that the blooming branch 4 drives the rack 14 to move in the giving slot 19, the blooming branch 4 and the base 1 are prevented from interfering, and the stability of the blast hole positioning operation process is ensured.

[0038] Further, the inner wall of the clamping groove 11 is embedded with a rubber pad. The friction between the locking piece 13 and the clamping groove 11 is improved by the rubber pad, so that the stability of the position of the positioning target ring 5 is ensured.

[0039] The working principle of the blast hole positioning device is as follows: first, rotate the operation wheel on the outer wall of the rotating shaft 10, so that the transmission shaft 20 drives the movable shaft 7 to rotate, the movable shaft 7 drives the driving gear 8 to rotate, the plurality of driven gears 9 circumferentially meshed with the driving gear 8 drive the transmission shaft 20 to rotate, the transmission shaft 20 drives the driving gear 21 to rotate, the rack 14 meshed with the driving gear 21 drives the blooming branch 4 to slide on the inner wall of the slot 16, and the plurality of positioning target rings 5 are spread out circumferentially.

[0040] Then the locking member 13 is screwed on the cartridge 12, the locking member 13 is clamped on the inner wall of the card slot 11, thereby locking the position of each positioning target ring 5 in the circumferential direction, and then the blast hole construction is carried out in the positioning target ring 5.

[0041] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In addition, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, so that the features with "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0043] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.

[0044] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for positioning a blast hole in a mine, comprising a base (1) and a cover (2), characterised in that: The base (1) and the top cover (2) are connected through the blooming frame (3), the blooming frame (3) is slidably provided with the blooming branches (4) penetrating the sidewall of the base (1) in a circumferential direction, the outer end of the blooming branches (4) is fixedly connected with the positioning target circle (5), the inner cavity of the base (1) is provided with a retracting and releasing assembly for driving all the blooming branches (4) to retract and expand simultaneously, and the top of the top cover (2) is fixedly connected with the centering drill (6) for locking the position of the base (1).

2. A device for locating a blast hole in a mine according to claim 1 wherein: The retracting and releasing assembly comprises the movable shaft (7) rotatably arranged between the blooming frame (3) and the base (1), the outer wall of the movable shaft (7) is sleeved with the driving gear (8), the bottom of the blooming frame (3) is rotatably provided with the transmission shaft (20) in a circumferential direction, the outer wall of the transmission shaft (20) is sleeved with the driven gear (9) engaged with the driving gear (8), the sidewall of the blooming branch (4) is provided with the rack (14) located in the inner cavity of the base (1), the outer wall of the transmission shaft (20) is sleeved with the driving gear (21) engaged with the rack (14), and the bottom of the base (1) is provided with the locking member for locking the position of the positioning target circle (5).

3. A device for locating a blast hole in a mine according to claim 2, characterised in that: The locking member comprises the rotating shaft (10) rotatably arranged at the bottom of the base (1), the rotating shaft (10) penetrates the bottom of the base (1) and is connected with the movable shaft (7), the outer wall of the rotating shaft (10) is fixedly connected with the clamping seat (12), the clamping seat (12) is threadedly connected with the locking piece (13), and the bottom of the base (1) is circumferentially provided with the clamping groove (11) clamped with the locking piece (13).

4. A device for locating a blast hole in a mine according to claim 3 wherein: The circumferential outer wall of the blooming frame (3) is uniformly provided with the notches (16), the blooming branches (4) are slidably arranged in the inner cavities of the notches (16), the top of the blooming frame (3) is circumferentially uniformly provided with the directional grooves (17), both sides of each notch (16) are provided with two parallel directional grooves (17), the inner wall of the directional groove (17) is provided with the through groove (22) extending to the inner cavity of the notch (16), the outer wall of the blooming branch (4) is fixedly connected with the sliding block (18), and the sliding block (18) is slidably arranged in the inner cavity of the directional groove (17) after penetrating the through groove (22).

5. A device for locating a blast hole in a mine according to claim 4 wherein: The circumferential outer wall of the base (1) is uniformly provided with the accommodation groove (19) communicated with the notch (16), and the rack (14) penetrates the inner cavity of the accommodation groove (19).

6. A device for locating a blast hole in a mine according to claim 3 wherein: The inner wall of the clamping groove (11) is embedded with the rubber pad.

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