A pneumatic anchor drill for mining

Abstract

This utility model relates to the field of pneumatic anchor drilling rigs, and more particularly to a mining pneumatic anchor drilling rig, including a pneumatic anchor drilling rig body. The pneumatic anchor drilling rig body includes an air leg assembly. A magnetic suction ring is fixedly sleeved in the middle of the outer wall of the air leg assembly, and an auxiliary support assembly is provided on the outside of the air leg assembly. The auxiliary support assembly includes a main base, and a base ring is connected to the outside of the main base through multiple extension rods. In this utility model, by using the auxiliary support assembly in conjunction with the magnetic suction ring of the air leg assembly, the air leg assembly can be provided with support force, which can always maintain the air leg assembly in stable contact with the ground and prevent the pneumatic anchor drilling rig body from tipping over. Furthermore, users can selectively install the steel cone assembly and the rubber ring according to actual needs. When facing soft ground, one side of the steel cone assembly can face the ground, and when facing hard and flat ground, one side of the rubber ring can face the ground.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic anchor drilling machine technology, and in particular to a mining pneumatic anchor drilling machine. Background Technology

[0002] Mining pneumatic anchor bolt drilling rigs are key equipment used in underground engineering projects such as coal mines, metal mines, and tunnels. They are specifically designed for drilling holes in rock strata or coal walls and installing anchor bolts for support. Powered by compressed air, they are one of the main tools for mine roadway support operations.

[0003] Mining pneumatic anchor bolt drilling rigs utilize compressed air from underground to drive a pneumatic motor to rotate. After the torque is increased by a gear reducer, the drill rod and drill bit are driven to cut through the rock formation. At the same time, the compressed air acts on the air leg (telescopic cylinder), providing stable support and axial thrust for the drilling rig, pressing the drill bit against the working face. Operators can centrally control the motor's start / stop or reversal, the air leg's raising / lowering or thrust, and the flushing water switch via an integrated control valve group on the control arm. This enables drilling, anchor bolt installation, and resin cartridge mixing support operations, while a wet drilling system cools the drill bit and reduces dust and slag.

[0004] Traditional drilling rigs primarily rely on a single air leg for support and propulsion. In complex, uneven, or soft downhole conditions, the air leg support point is prone to slipping, sinking, or shifting. Especially when applying drilling pressure or encountering changes in rock formation, the drilling rig itself is highly susceptible to swaying, tilting, or even overturning. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pneumatic anchor drilling machine for mining.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mining pneumatic anchor bolt drilling rig includes a pneumatic anchor bolt drilling rig body. The pneumatic anchor bolt drilling rig body includes an air leg assembly. A magnetic suction ring is fixedly sleeved in the middle of the outer wall of the air leg assembly. An auxiliary support assembly is provided on the outside of the air leg assembly. The auxiliary support assembly includes a main base. A base ring is connected to the outside of the main base through multiple extension rods. Three sets of adjustable telescopic components are arranged in an equal-distance circular array on the outside of the base ring. A steel cone assembly is provided at the top of the base ring. A rubber ring pad is provided at the bottom of the base ring.

[0008] The adjustable telescopic assembly includes a mounting frame one and a mounting frame two. A movable support rod one is rotatably mounted on one side of the mounting frame one, and a movable support rod two is rotatably mounted on one side of the mounting frame two. A mounting arc block is fixedly mounted on the other side of the mounting frame two. The mounting surface of the mounting arc block is provided with a magnetic groove with the opposite polarity to that of the magnetic ring at the magnetic ring. One end of the movable support rod two is slidably inserted into the movable support rod one.

[0009] Furthermore, in a preferred configuration, movable support rod one and movable support rod two are rotatably connected to the mounting bracket one and mounting bracket two respectively via a fixed shaft.

[0010] In addition, a preferred structure is that a locking component is installed at the middle of the bottom end of the air leg assembly, and a locking hole for inserting the locking component is provided in the main base.

[0011] Furthermore, in a preferred configuration, the steel cone assembly comprises multiple steel cone bodies, which are arranged in a circular array at equal intervals on the base ring.

[0012] In addition, a preferred structure is that a protective cover is magnetically fitted on the base ring and located outside the steel insert cone assembly, a magnetic ring is installed at the bottom of the protective cover, and auxiliary slots for inserting the protective cover are opened at the top and bottom of the base ring, and a magnetic layer with the opposite polarity to the magnetic ring is provided in the auxiliary slot.

[0013] In addition, a preferred structure is that extension plates are installed on both sides of the mounting arc block, the extension plates have mounting holes, and adjacent sets of mounting arc blocks are connected by fastening components.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, the auxiliary support component, in conjunction with the magnetic ring of the air leg component, provides support for the air leg component, ensuring stable contact between the air leg component and the ground and preventing the pneumatic anchor drill body from tipping over. Furthermore, users can selectively install the steel cone component and the rubber ring according to their actual needs. When facing soft ground, the steel cone component can be positioned with one side facing the ground, while when facing hard, flat ground, the rubber ring can be positioned with one side facing the ground. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a mining pneumatic anchor drill proposed in this utility model;

[0017] Figure 2 A structural diagram showing the disassembled body and auxiliary support components of a pneumatic anchor drilling rig;

[0018] Figure 3 Schematic diagram of the structure for disassembling the auxiliary support components Figure 1 ;

[0019] Figure 4 Schematic diagram of the structure for disassembling the auxiliary support components Figure 2 ;

[0020] Figure 5 This is a partial structural diagram of an adjustable telescopic component.

[0021] In the diagram: 1. Pneumatic anchor drill body; 11. Air leg assembly; 2. Auxiliary support assembly; 21. Base ring; 22. Mounting frame one; 23. Movable support rod one; 24. Mounting arc block; 25. Mounting frame two; 26. Movable support rod two; 27. Main base; 3. Protective cover; 4. Steel cone body; 5. Rubber ring pad; 6. Magnetic suction ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 A mining pneumatic anchor drill includes a pneumatic anchor drill body 1, which includes an air leg assembly 11. A magnetic suction ring 6 is fixedly sleeved on the middle of the outer wall of the air leg assembly 11. An auxiliary support assembly 2 is provided on the outside of the air leg assembly 11. The auxiliary support assembly 2 includes a main base 27. A base ring 21 is connected to the outside of the main base 27 through multiple extension rods. Three sets of adjustable telescopic components are arranged in an equal-distance circular array on the outside of the base ring 21. A steel cone assembly is provided at the top of the base ring 21, and a rubber pad 5 is provided at the bottom of the base ring 21.

[0024] Meanwhile, the adjustable telescopic assembly includes a mounting frame 1 22 and a mounting frame 25. A movable support rod 1 23 is rotatably mounted on one side of the mounting frame 1 22, and a movable support rod 26 is rotatably mounted on one side of the mounting frame 25. An installation arc block 24 is fixedly mounted on the other side of the mounting frame 25. The mounting surface of the installation arc block 24 is located at the magnetic ring 6 and has a magnetic groove with the opposite polarity to the magnetic ring 6. One end of the movable support rod 26 is slidably inserted into the movable support rod 1 23.

[0025] Furthermore, movable support rod 23 and movable support rod 26 are rotatably connected to the mounting bracket 22 and mounting bracket 25 respectively via fixed shafts.

[0026] Meanwhile, a locking component is installed at the bottom center of the air leg assembly 11, and a locking hole for inserting the locking component is provided inside the main base 27.

[0027] Meanwhile, the steel cone assembly includes multiple steel cone bodies 4, which are arranged in a circular array at equal intervals on the base ring 21.

[0028] Furthermore, a protective cover 3 is magnetically fitted on the base ring 21 and located outside the steel insert cone assembly. A magnetic ring is installed at the bottom of the protective cover 3. The top and bottom of the base ring 21 are provided with auxiliary slots for the protective cover 3 to be inserted into, and a magnetic layer with the opposite polarity to the magnetic ring is provided in the auxiliary slot.

[0029] Furthermore, extension plates are installed on both sides of the mounting arc block 24, and mounting holes are opened in the extension plates. Adjacent sets of mounting arc blocks 24 are connected by fastening components.

[0030] In this embodiment, the user can selectively install the steel cone assembly and the rubber pad 5 according to actual needs. When facing a soft ground, one side of the steel cone assembly can face the ground. When facing a hard, flat ground, one side of the rubber pad 5 can face the ground. When one side of the rubber pad 5 faces the ground, its protective cover is fitted onto the outside of the steel cone assembly and magnetically connected to the auxiliary slot on one side of the steel cone assembly of the base ring 21. Conversely, when one side of the steel cone assembly faces the ground, its protective cover is fitted onto the outside of the rubber pad 5 and magnetically connected to the auxiliary slot on one side of the rubber pad 5 of the base ring 21.

[0031] The column base is inserted into the locking piece at the bottom of the air leg assembly 11. Then, the magnetic groove of the mounting arc block 24 is aligned with its magnetic ring 6 and inserted. The two adjacent sets of mounting arc blocks 24 are connected by a fastening assembly, which includes bolts and nuts. The specific structure and connection method of the fastening assembly are all existing technologies that are currently publicly available on the market, so they will not be described in detail.

[0032] Three sets of adjustable telescopic components are arranged in a ring array outside the air leg component 11, forming a triangular support structure.

[0033] When the air leg assembly 11 extends or retracts (usually by extending upwards to apply drilling pressure or retracting downwards), the magnetic ring 6 fixed to the air leg moves accordingly. Since the mounting arc blocks 24 are attracted to the magnetic ring 6 via magnetic grooves, and the three sets of mounting arc blocks 24 are connected adjacently by fastening components, the movable support rod 2 rises and falls synchronously as the air leg assembly 11 extends and retracts. During the rising and falling of the movable support rod 26 with the air leg assembly 11, one end of the movable support rod 26 slides within the movable support rod 23, allowing the movable support rods 1 and 2 to automatically adapt to changes in support height.

[0034] When the air leg assembly extends to any height within a certain range, the auxiliary support assembly ensures that the air leg assembly remains in stable contact with the ground, providing support and preventing the pneumatic anchor drill body 1 from overturning.

[0035] In this utility model, the auxiliary support component 2, in conjunction with the magnetic ring 6 of the air leg component 11, can provide support for the air leg component, ensuring that the air leg component is always in stable contact with the ground and preventing the pneumatic anchor drill body 1 from tipping over. Furthermore, users can selectively install the steel cone component and the rubber ring 5 according to actual needs. When facing soft ground, one side of the steel cone component can face the ground, and when facing hard, flat ground, one side of the rubber ring 5 can face the ground.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mine pneumatic rock drill comprising a pneumatic rock drill body (1), characterized in that, The pneumatic anchor drill body (1) includes a pneumatic leg assembly (11). A magnetic ring (6) is fixedly sleeved in the middle of the outer wall of the pneumatic leg assembly (11). An auxiliary support assembly (2) is provided on the outside of the pneumatic leg assembly (11). The auxiliary support assembly (2) includes a main base (27). A base ring (21) is connected to the outside of the main base (27) through multiple extension rods. Three sets of adjustable telescopic components are arranged in an equal-distance circular array on the outside of the base ring (21). A steel cone assembly is provided at the top of the base ring (21), and a rubber pad (5) is provided at the bottom of the base ring (21). The adjustable telescopic assembly includes a mounting frame one (22) and a mounting frame two (25). A movable support rod one (23) is rotatably mounted on one side of the mounting frame one (22), and a movable support rod two (26) is rotatably mounted on one side of the mounting frame two (25). An installation arc block (24) is fixedly mounted on the other side of the mounting frame two (25). The mounting surface of the installation arc block (24) is provided with a magnetic groove with the opposite polarity to that of the magnetic ring (6) at the magnetic ring (6). One end of the movable support rod two (26) is slidably inserted into the movable support rod one (23).

2. The mining pneumatic anchor drilling rig according to claim 1, characterized in that, The first mounting bracket (22) and the second mounting bracket (25) are respectively connected to the first movable support rod (23) and the second movable support rod (26) via fixed shafts.

3. A mining pneumatic anchor drilling rig according to claim 1, characterized in that, The air leg assembly (11) has a locking component installed at the bottom center, and the main base (27) has a locking hole for the locking component to be inserted.

4. A mining pneumatic anchor drilling rig according to claim 1, characterized in that, The steel cone assembly includes multiple steel cone bodies (4), which are arranged in a circular array at equal intervals on the base ring (21).

5. A mining pneumatic anchor drilling rig according to claim 1, characterized in that, The base ring (21) is magnetically fitted with a protective cover (3) outside the steel insert cone assembly. A magnetic ring is installed at the bottom of the protective cover (3). The top and bottom of the base ring (21) are provided with auxiliary slots for the protective cover (3) to be inserted. A magnetic layer with the opposite polarity to the magnetic ring is provided in the auxiliary slot.

6. A mining pneumatic anchor bolt drilling rig according to claim 1, characterized in that, Both sides of the mounting arc block (24) are equipped with extension plates, and the extension plates have mounting holes. Adjacent sets of mounting arc blocks (24) are connected by fastening components.

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