Explosive fixing mechanism of mine draw shaft blockage dredging device

Abstract

The utility model provides an explosive fixing mechanism of a mine draw shaft blockage dredging device, which belongs to the technical field of mining and is used for solving the problem of how to fix an explosive on the lower side of a blockage structure in a draw shaft in the prior art. The fixing mechanism comprises a bottom base, an explosive base and at least three sets of pricking mechanisms connected between the bottom base and the explosive base, and each set of pricking mechanisms comprises a driving rod, a driven rod, a hinge base and a connecting rod; the driving rod is rotationally matched with the bottom base, the tail end of the driving rod is located in the center of the bottom base and driven by a power mechanism to rotate, and the head end of the driving rod faces the periphery along the radius of the bottom base; one end of the driven rod is in threaded fit with the head end of the driving rod, and the other end is provided with a hole wall connecting structure fixed with a hole wall; the hinge seat is connected with the driven rod, and two ends of the connecting rod are respectively hinged to the hinge seat and the explosive seat. By means of the bottom base, the explosive base and at least three sets of pricking mechanisms arranged on the circumference, the fixing problem of explosives on the lower side of the draw shaft plug is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining, in particular to an explosive fixing mechanism of a mine chute blocking and dredging device. Background Art

[0002] A chute is a crucial facility in underground mining, primarily used for the vertical transportation of ore and waste rock. During the mining process, the ore or waste rock is loaded into the chute, where it then slides down the shaft wall under its own weight to the transport system below, enabling efficient transfer of the ore or waste rock. The presence of a chute significantly improves mining transportation efficiency and reduces transportation costs.

[0003] However, in practice, chutes often face blockage issues. Due to the varying shapes and sizes of ore and waste rock, these chutes can become blocked, preventing the ore or waste rock from flowing properly. This not only impacts normal mine production but can also pose a safety hazard.

[0004] Once a chute becomes clogged, timely unblocking becomes crucial. The applicant uses a crawling mechanism to carry explosives into the lower part of the clogged area within the chute. The explosives are then detonated, creating a force that destroys the blockage and clears the chute. Before detonation, the crawling mechanism must be withdrawn from the chute to avoid damage. Therefore, a mechanism is required to secure the explosives to the lower part of the blockage within the chute. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an explosive fixing mechanism for a mine chute blockage and dredging device, which is used to solve the problem of how to fix the explosive on the lower side of the blockage structure in the chute in the prior art.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides an explosive fixing mechanism for a mine chute blockage and dredging device, comprising a disc-shaped bottom base and an explosive seat, and a piercing mechanism connected therebetween, wherein the explosive seat is located above the bottom base, and the piercing mechanism is provided in at least three groups around the circumference.

[0007] The insertion mechanism includes: a driving rod, a driven rod, a hinge seat and a connecting rod;

[0008] The driving rod is rotatably engaged with the base, the tail end of the driving rod is located at the center of the base and is driven to rotate by a power mechanism, and the head end faces the outer periphery along the radius of the base;

[0009] One end of the driven rod is threadedly engaged with the head end of the driving rod, and the other end is provided with a hole wall connection structure for fixing to the hole wall;

[0010] The hinge seat is connected to the driven rod, and the two ends of the connecting rod are hinged to the hinge seat and the explosive seat respectively.

[0011] Optionally, the hole wall connection structure is a sharp piercing structure or a surface abutment structure.

[0012] Optionally, at the connection between the driving rod and the driven rod, the inner diameter of the driven rod is threadedly matched with the outer diameter of the driving rod, and the outer end of the connection between the driven rod and the driving rod is provided with an arc-shaped sheet structure, the inner concave surface of the arc-shaped sheet structure faces the bottom of the chute, and the curvature of the arc-shaped sheet structure is less than or equal to 180 degrees.

[0013] Optionally, the power mechanism includes a power source, a driving gear and a driven gear;

[0014] The power source is located in the center area of ​​the base, the driving gear is installed on the output shaft of the power source, and a driven gear is installed at the tail end of each driving rod, and each driven gear is engaged with the driving gear.

[0015] Optionally, a first support seat is provided on the bottom base, the number of the first support seats corresponds to the number of groups of the piercing mechanism, and the first support seat is provided with a sliding groove opening upward, and the connecting rod is slidably connected in the sliding groove and can be detached from the top of the sliding groove.

[0016] Optionally, a second support seat is provided on the bottom base, and the number of the second support seats corresponds to the number of groups of the piercing mechanism. A pressure detector is provided on the second support seat, and the bottom of the pressure detector is fixedly connected to the second support seat. The top of the pressure detector is provided with an abutment groove, and the abutment groove abuts against the explosive seat and can be separated during relative movement.

[0017] Optionally, a plurality of groups of sac-like structures and explosives are provided on the upper side of the explosive seat, the sac-like structures are connected to pipelines, and a glue spraying nozzle is fixedly connected to the end of the power source output shaft, and the glue spraying nozzle sprays toward the sac-like structure area along the radius of the explosive seat;

[0018] The glue spraying nozzle supplies glue through the rotating support platform.

[0019] Optionally, one side of the rotating support platform is fixedly connected to the bottom base, and the other side is rotationally matched with the outer periphery of the glue spray nozzle. Inside the rotational matching area, a cavity area with a reduced diameter is provided on the glue spray nozzle, and the cavity area is connected to the nozzle. The cavity area is also connected to a hose for introducing glue.

[0020] Optionally, the glue sprayed out by the glue spray nozzle is epoxy resin glue, polyester resin glue or polyurethane glue.

[0021] Optionally, the connecting rod and the main body of the explosive seat are made of wooden material.

[0022] As described above, the explosive fixing mechanism of the mine chute blockage dredging device of the present invention has at least the following beneficial effects:

[0023] The disc-shaped base and explosive holder, along with at least three circumferentially arranged insertion mechanisms, effectively secure the explosive beneath the chute blockage. This mechanism utilizes a clever combination of a drive rod, a driven rod, an articulated seat, and a connecting rod to secure the explosive holder within the chute, effectively ensuring timely unblocking of the blockage and improving safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is an overall schematic diagram of the utility model.

[0025] Figure 2 Display of the utility model Figure 1 A partial enlarged schematic diagram of point A in the middle.

[0026] Figure 3 Display of the utility model Figure 1 A partial enlarged schematic diagram of point B in the middle.

[0027] Figure 4 Shown is a schematic diagram of the present invention after the bottom base and the explosive base are separated.

[0028] Figure 5 Shown is a schematic diagram of the glue spray nozzle and rotating support platform of the utility model.

[0029] Among them: bottom base 7, first support base 70, second support base 71, pressure detector 72, explosive base 4, sac-like structure 40, explosive 41, piercing mechanism 5, driving rod 50, driven rod 51, arc-shaped sheet structure 511, hinged base 52, connecting rod 53, hole wall connection structure 54, driving gear 55, driven gear 56, glue nozzle 6, rotating support platform 60, cavity area 61, glue hose 62. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0031] See also Figures 1 to 5. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0032] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0033] For this example, please refer to Figure 1 The embodiment of the explosive fixing mechanism of the mine chute blockage dredging device provided by the utility model includes a disc-shaped bottom base 7 and an explosive seat 4, and a piercing mechanism 5 connected therebetween. The explosive seat 4 is located above the bottom base 7, and the piercing mechanism 5 is provided in at least three groups around the circumference.

[0034] The piercing mechanism 5 includes a driving rod 50, a driven rod 51, a hinge seat 52 and a connecting rod 53;

[0035] The driving rod 50 is rotatably engaged with the bottom base 7. The tail end of the driving rod 50 is located at the center of the bottom base 7 and is driven to rotate by the power mechanism, and the head end is directed toward the outer periphery along the radius of the bottom base 7.

[0036] One end of the driven rod 51 is threadedly engaged with the head end of the driving rod 50, and the other end is provided with a hole wall connecting structure 54 for fixing to the hole wall;

[0037] The hinge seat 52 is connected to the driven rod 51 , and both ends of the connecting rod 53 are hinged to the hinge seat 52 and the explosive seat 4 respectively.

[0038] During operation, the fixing mechanism is installed on the top of a vehicle (a mechanism that can crawl along the chute), and the vehicle carries the fixing mechanism to the lower side of the blocked area of ​​the chute. The power mechanism then drives the driving rod 50 to rotate, and the articulated seat 52 is connected to the driven rod 51 as a whole. The articulated seat 52 and the connecting rod 53 limit the rotation of the driven rod 51. Under the action of the threaded cooperation between the driving rod 50 and the driven rod 51, the driven rod 51 will extend along the axis, thereby piercing or abutting the hole wall connection structure 54 at the end of the driven rod 51 against the hole wall of the chute. At least three groups of hole wall connection structures 54 arranged circumferentially can enable the fixing mechanism to be relatively stably fixed in the chute. Subsequently, the top of the vehicle separates from the fixing mechanism, and the vehicle leaves the chute. The explosives carried by the explosive seat 4 on the fixing mechanism are remotely detonated. The impact force generated by the explosion destroys the blocking structure in the chute, and falls to the bottom of the chute under the action of gravity, thereby clearing the chute.

[0039] Furthermore, the hole wall connection structure 54 is a sharp piercing structure or a surface abutment structure. During specific implementation, a matching hole wall connection structure 54 is selected according to the hole wall condition that blocks the chute. Specifically, the sharp piercing structure is more secure, but it is difficult to penetrate and difficult to implement in the chute of the rock wall. The surface abutment structure does not need to penetrate the hole wall, but for a hole wall that is too smooth, there may be insufficient friction and poor stability. In some cases, the two can also be combined, and multiple sharp piercing structures can be set on the surface abutment structure, such as Figure 4 As shown ( Figure 4 The surface contact structure may use a rubber cushion layer with a certain degree of deformation to increase friction and contact adaptability.

[0040] In this embodiment, at the connection between the driving rod 50 and the driven rod 51, the inner diameter of the driven rod 51 is threadedly matched with the outer diameter of the driving rod 50, and the outer end of the connection between the driven rod 51 and the driving rod 50 is provided with an arc-shaped sheet structure 511, and the inner concave surface of the arc-shaped sheet structure 511 faces the bottom of the chute, that is, the direction in which the vehicle leaves the chute, and the curvature of the arc-shaped sheet structure 511 is less than or equal to 180 degrees.

[0041] During the process of the driving rod 50 rotating and driving the driven rod 51 toward the wall of the chute, when the distance moved relative to the driving rod 50 by the driven rod 51 exceeds a certain range, the head end of the driving rod 50 detaches from the annular rod body of the driven rod 51 and reaches the area of ​​the arc-shaped sheet structure 511. At this time, if the carrier moves downward with the base 7 and the driving rod 50, the base 7 and the driving rod 50 can be directly separated from the driven rod 51, the connecting rod 53, and the explosive seat 4. The multiple groups of driven rods 51 and connecting rods 53 distributed in an annular manner can form a stable support structure to support the explosive seat 4. The weight of the explosive seat 4 is relatively large, and the support structure of the driven rods 51 and connecting rods 53 is relatively stable. The advantage of this is that before dredging the chute by blasting, other components can be removed as much as possible, reducing material loss and dredging costs.

[0042] In this embodiment, the power mechanism includes a power source, a driving gear 55 and a driven gear 56;

[0043] The power source is located in the center area of ​​the base 7. The driving gear 55 is installed on the output shaft of the power source. A driven gear 56 is installed at the tail end of each driving rod 50, and each driven gear 56 is meshed with the driving gear 55. The axis of the driving gear 55 is perpendicular to the horizontal plane, and the axis of each driven gear 56 is parallel to the horizontal plane. The driving gear 55 is a disc-shaped bevel gear, and each driven gear 56 is arranged perpendicular to the driving gear 55. The coordinated operation of multiple groups of piercing mechanisms 5 is achieved through a single power source, which simplifies the design and improves the synchronization and stability of the piercing mechanism 5. After the piercing is completed, the relevant components can follow the carrier mechanism to leave the blasting and dredging area, thereby avoiding losses.

[0044] In this embodiment, the base 7 is provided with first support blocks 70. The number of first support blocks 70 corresponds to the number of piercing mechanisms 5. Each of the first support blocks 70 is provided with an upward-opening chute. The connecting rod 53 is slidably connected within the chute and can be detached from the top of the chute. Initially, the connecting rod 53 is positioned above both the first support block 70 and the chute. As the piercing mechanism 5 penetrates the chute wall, the connecting rod 53 gradually descends and enters the chute. A pressure sensor can be provided within the chute to detect contact between the connecting rod 53 and the chute, thereby estimating the operating status of the connecting rod 53 and the piercing mechanism 5.

[0045] In this embodiment, the bottom base 7 is provided with second support bases 71, the number of which corresponds to the number of piercing mechanisms 5. Pressure detectors 72 are also provided on the second support bases 71. The bottom of the pressure detectors 72 is fixedly connected to the second support bases 71, and the top of the pressure detectors 72 is provided with an abutment groove that abuts against the explosive base 4, allowing separation during relative movement. During the separation process of the bottom base 7 and the driving rod 50 from the explosive base 4 and the driven rod 51, the pressure exerted by the explosive base 4 on the bottom base 7 can be determined by observing the readings of each pressure detector 72. If the supporting force of the piercing mechanism 5 on the explosive base 4 is sufficient, the readings of each pressure detector 72 will gradually decrease to zero during the separation process. If the readings of each pressure detector 72 remain non-zero during the separation process, it indicates that the supporting force is insufficient and the piercing mechanism 5 cannot independently support the explosive base 4. The supporting force of the piercing mechanism 5 needs to be strengthened so that the driven rod 51 and the explosive base 4 can remain in place after the bottom base 7 and the driving rod 50 are withdrawn.

[0046] In this embodiment, multiple groups of sac-like structures 40 and explosives 41 are provided on the upper side of the explosive seat 4. The sac-like structure 40 is connected to a pipeline. The end of the power source output shaft is fixedly connected to a glue nozzle 6. The glue nozzle 6 sprays glue along the radius of the explosive seat 4 toward the area of ​​the sac-like structure 40; the glue nozzle 6 supplies glue through a rotating support platform 60.

[0047] By spraying adhesive from the adhesive nozzle 6 onto the surface of the bladder structure 40, the bladder structure 40 then inflates under pressure, automatically adapting to the structure of the obstructing stone, clinging to the bottom of the obstructing stone and adhering to the surface. This embodiment is particularly suitable for situations where the special structure of the chute wall makes it difficult to provide sufficient friction or support. The adhesive provides a certain adhesion force, fixing the explosive 41 to the underside of the obstruction structure.

[0048] This embodiment can be found in Figure 5 One side of the rotating support 60 is fixedly connected to the base 7, and the other side is rotatably engaged with the outer periphery of the glue nozzle 6. Inside the rotatable engagement area, the glue nozzle 6 is provided with a reduced-diameter cavity area 61, which communicates with the nozzle. A rubber hose 62 for supplying glue is also connected to the cavity area 61. The glue sprayed from the glue nozzle 6 is epoxy resin glue, polyester resin glue, or polyurethane glue. The choice of glue depends on the type of stone being blocked. Experiments can be conducted to test the adhesion of different glues to the sac structure 40 and the blocking stone (ore).

[0049] In the above embodiment, the glue spray nozzle 6 rotates following the driving gear 55. During this process, the adhesive can be sprayed onto the upper surface of the sac-like structure 40 in all directions. The expansion and extrusion of the sac-like structure 40 is utilized to adhere to the stone that forms the blockage. The air pump of the sac-like structure 40 is arranged on the carrier or the base 7. The sac-like structure 40 and the air pump are connected through an air pipe. When the explosive fixing mechanism of the mine chute blockage dredging device of this embodiment is separated from the carrier, the air pipe also needs to be disconnected. A pair of cannulas that slide along the axis can be used as a joint. When the carrier and the fixing mechanism are separated, the carrier moves downward while the fixing mechanism remains in place to disconnect the air pipe. In order to prevent the gas in the sac-like structure 40 from leaking out after disconnection, a one-way valve can be provided on the tube on one side of the sac-like structure 40.

[0050] In this embodiment, the connecting rod 53 and the main body of the explosive holder 4 are made of wood to reduce weight, thereby reducing the adhesion force or contact force with the well wall when fixing them below the obstruction in the well. For example, the ring at the bottom of the explosive holder 4 is a metal structure to ensure appropriate strength. Figure 1 Explosives seat 4 top panel using wood, used to accommodate explosives, such as Figure 4 At the same time, once the explosives are detonated, the related structures will also be damaged. Wood materials can reduce costs. Moreover, wood materials are easily shattered by the impact of explosives and blocking rocks, and are less likely to get stuck in the chute wall and form new blockage structures.

[0051] In summary, the present invention effectively overcomes various shortcomings in the prior art, can produce beneficial technical effects, and has significant progress.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. An explosive fixing mechanism for a mine chute blockage dredging device, characterized by: It comprises a disc-shaped bottom base (7) and an explosive seat (4), and a piercing mechanism (5) connected therebetween, wherein the explosive seat (4) is located above the bottom base (7), and the piercing mechanism (5) is arranged in at least three groups around the circumference; The piercing mechanism (5) comprises: a driving rod (50), a driven rod (51), a hinge seat (52) and a connecting rod (53); The driving rod (50) is rotatably engaged with the base (7), the tail end of the driving rod (50) is located at the center of the base (7) and is driven to rotate by a power mechanism, and the head end faces the outer periphery along the radius of the base (7); One end of the driven rod (51) is threadedly engaged with the head end of the driving rod (50), and the other end is provided with a hole wall connecting structure (54) for fixing to the hole wall; The hinged seat (52) is connected to the driven rod (51), and the two ends of the connecting rod (53) are hinged to the hinged seat (52) and the explosive seat (4) respectively.

2. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 1, characterized in that: The hole wall connection structure (54) is a sharp piercing structure or a planar abutment structure.

3. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 1, characterized in that: At the connection point between the driving rod (50) and the driven rod (51), the inner diameter of the driven rod (51) is threadedly matched with the outer diameter of the driving rod (50), and an arc-shaped sheet structure (511) is provided at the outer end of the connection point between the driven rod (51) and the driving rod (50), the inner concave surface of the arc-shaped sheet structure (511) faces the bottom of the chute, and the arc of the arc-shaped sheet structure (511) is less than or equal to 180 degrees.

4. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 1, characterized in that: The power mechanism includes a power source, a driving gear (55) and a driven gear (56); The power source is located in the central area of ​​the base (7), the driving gear (55) is installed on the output shaft of the power source, and a driven gear (56) is installed at the tail end of each driving rod (50), and each driven gear (56) is meshed with the driving gear (55).

5. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 1, characterized in that: The bottom base (7) is provided with a first support seat (70), the number of the first support seats (70) corresponds to the number of groups of the piercing mechanism (5), and the first support seat (70) is provided with a sliding groove opening upward, and the connecting rod (53) is slidably connected in the sliding groove and can be detached from the top of the sliding groove.

6. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 1, characterized in that: A second support seat (71) is provided on the bottom base (7), and the number of the second support seats (71) corresponds to the number of groups of the piercing mechanism (5). A pressure detector (72) is provided on the second support seat (71), and the bottom of the pressure detector (72) is fixedly connected to the second support seat (71). The top of the pressure detector (72) is provided with an abutment groove, and the abutment groove abuts against the explosive seat (4) and can be separated during relative movement.

7. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 4, characterized in that: A plurality of groups of sac-like structures (40) and explosives (41) are provided on the upper side of the explosive seat (4), the sac-like structures (40) are connected to a pipeline, and a glue spraying nozzle (6) is fixedly connected to the end of the power source output shaft, and the glue spraying nozzle (6) sprays in a direction along the radius of the explosive seat (4) toward the area of ​​the sac-like structure (40); The glue spraying nozzle (6) supplies glue via a rotating support platform (60).

8. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 7, characterized in that: One side of the rotating support platform (60) is fixedly connected to the bottom base (7), and the other side is rotationally matched with the outer periphery of the glue spraying nozzle (6). Inside the rotationally matched area, a cavity area (61) with a reduced diameter is provided on the glue spraying nozzle (6). The cavity area (61) is connected to the nozzle, and the cavity area (61) is also connected to a rubber hose (62) for introducing rubber.

9. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 7, characterized in that: The glue material sprayed out by the glue spraying nozzle (6) is epoxy resin glue, polyester resin glue or polyurethane glue.

10. The explosive fixing mechanism of the mine chute blockage clearing device according to claim 1, characterized in that: The connecting rod (53) and the main body of the explosive seat (4) are made of wooden material.

Images