An underground mining rock drilling rig

Abstract

The utility model belongs to the technical field of mine machinery, and disclose a kind of underground mining rock drilling rig, including machine body, the bottom end of the machine body is movably sleeved with drill bit. The utility model is provided with No. 1 protective cover, No. 2 protective cover, clamping block and screw rod, rock powder and broken stone generated in rock drilling operation can be blocked by the combination of No. 1 protective cover and No. 2 protective cover, when they need to be disassembled, by removing butterfly nut, then relatively pressing push block drives clamping block to move together, clamping block will drive screw rod to move in moving process, screw rod will be disconnected with connecting rod in moving process, the combination of No. 1 protective cover and No. 2 protective cover can be disassembled at this time, the combination of No. 1 protective cover and No. 2 protective cover improves the safety in rock drilling operation, and No. 1 protective cover and No. 2 protective cover can be split into smaller components after disassembly, can be carried alone, reduce the occupied space when carrying.

Description

Technical Field

[0001] This utility model belongs to the field of mining machinery technology, specifically a rock drilling device for underground mining. Background Technology

[0002] Rock drilling equipment is a core piece of equipment in underground mining operations. It is mainly used to drill blast holes to facilitate subsequent blasting operations. It includes various types such as rock drilling rigs, handheld rock drills, and rail-mounted rock drills, and is widely used in underground mines, tunneling, and stope mining. In order to deal with the problem of high-speed splashing of rock dust and gravel during rock drilling operations underground, some underground mining rock drilling equipment is equipped with splash guards. These guards are usually made of transparent and wear-resistant materials, which can directly block the impact of splashes on the operator's face, eyes, and hands. At the same time, they reduce the obstruction of the working field of vision by rock dust diffusion, and also prevent rock dust and gravel from entering the core components of the device such as the drill head and drill tail sleeve, reducing the probability of component wear and providing a basic guarantee for the safety and stability of rock drilling operations.

[0003] However, existing underground mining drilling equipment still has the following problems: In terms of operational safety, high-speed flying rock dust and gravel are directly exposed to the working environment, which can easily hit the operator's face, eyes, hands, etc., causing work-related injuries such as scratches and crushing injuries. In addition, unprotected rock dust and gravel can directly penetrate the core components of the drilling equipment, such as the drill head, drill tail sleeve, and drill rotation mechanism, accelerating the wear and jamming of components, and even causing damage to seals, leading to problems such as hydraulic oil leakage and pneumatic system failure. This significantly increases the frequency of equipment failure and maintenance costs, and shortens the overall service life of the equipment. It is difficult to meet the core requirements of underground mining operations for safety, efficiency and equipment stability, so it needs to be improved. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing an underground mining rock drilling device that improves the safety of rock drilling operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an underground mining drilling device, comprising a body, a drill bit movably sleeved at the bottom end of the body, a first protective cover and a second protective cover movably connected to the outer surface of the body, a first fixing block fixedly installed at the bottom end of the first protective cover, and a second fixing block fixedly connected to the bottom end of the second protective cover, with positioning blocks fixedly installed on opposite sides of the first and second fixing blocks, the outer surface of the positioning blocks movably connected to the inner surface of the body, and a connecting block fixedly connected to the left side of the second fixing block. The connecting rod has a connecting block fixedly installed on the left side of the first fixing block. A locking block is movably sleeved inside the connecting block. A push block is fixedly connected to the left side of the locking block. The outer end of the push block passes through the connecting block and extends to the outside of the connecting block. There are two locking blocks. A screw is fixedly connected to the opposite sides of the two locking blocks. A wing nut is threaded onto the outer surface of the screw. A return spring is fixedly installed on the opposite sides of the two screws. A support block is fixedly connected to the inner end of the return spring. The outer surface of the support block is fixedly connected to the inner surface of the connecting block.

[0006] In a preferred embodiment of this invention, the outer surface of the connecting rod is movably sleeved with the inner surface of the first fixing block, and the inner surface of the connecting rod is movably sleeved with the outer surface of the screw.

[0007] As a preferred embodiment of this invention, the outer surface of the drill bit is provided with a graduated groove, and a positioning ring is movably sleeved on the outer surface of the drill bit.

[0008] In a preferred embodiment of this invention, a pressing block is movably sleeved inside the positioning ring, and the outer surface of the pressing block is smooth.

[0009] As a preferred embodiment of this invention, a rubber pad is fixedly connected to the left side of the extrusion block, and the left side of the rubber pad is movably connected to the drill bit.

[0010] As a preferred embodiment of this invention, a compression spring is fixedly installed on the right side of the compression block, and the right end of the compression spring is fixedly connected to the inner surface of the positioning ring.

[0011] As a preferred embodiment of this invention, a threaded rod is movably sleeved on the right side of the extrusion block, the outer surface of the threaded rod is threadedly sleeved with the inner surface of the positioning ring, and a handle is fixedly connected to the right side of the threaded rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a first protective cover, a second protective cover, a locking block, and a screw, allows rock dust and gravel generated during rock drilling operations to be blocked by the combination of the first and second protective covers. When the two need to be disassembled, the wing nut is removed, and the push block is pressed relative to each other to move the locking block. During the movement of the locking block, the screw will move, and the screw will disengage from the connecting rod. At this time, the combination of the first and second protective covers can be disassembled. The combination of the first and second protective covers improves the safety of rock drilling operations. Furthermore, after disassembly, the first and second protective covers can be broken down into smaller parts that can be carried separately, reducing the space occupied during transportation and reducing the carrying burden on operators. 2. This utility model, by setting a positioning ring, a pressing block, a threaded rod, and a handle, allows the operator to slide the positioning ring to its bottom end onto the preset scale groove when a preset depth needs to be drilled. By rotating the handle, the threaded rod is driven to rotate as well. The threaded force generated during the rotation of the threaded rod will cause the combination of the pressing block and the rubber pad to fit against the drill bit surface. The elastic force of the pressing spring will always push the combination of the pressing block and the rubber pad to contact the drill bit, avoiding vibration that could cause poor contact. When the positioning ring fits against the rock wall during operation, it indicates that the target depth has been reached, eliminating the need for subjective judgment, ensuring the consistency of hole depth in the same batch, and significantly improving the accuracy of operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded structural diagram of the entire utility model; Figure 3 This is a structural schematic diagram of the No. 1 fixing block of this utility model; Figure 4 This is a schematic diagram of the connecting block of this utility model; Figure 5 This is a schematic diagram of the positioning ring of this utility model; Figure 6 This is a schematic diagram of the structure of the extrusion block of this utility model.

[0014] In the diagram: 1. Machine body; 2. Drill bit; 3. Protective cover No. 1; 4. Protective cover No. 2; 5. Fixing block No. 1; 6. Fixing block No. 2; 7. Positioning block; 8. Connecting rod; 9. Connecting block; 10. Locking block; 11. Pushing block; 12. Screw; 13. Wing nut; 14. Return spring; 15. Support block; 16. Scale groove; 17. Positioning ring; 18. Compression block; 19. Rubber pad; 20. Compression spring; 21. Threaded rod; 22. Handle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 6 As shown, this utility model provides an underground mining rock drilling device, including a body 1. A drill bit 2 is movably sleeved at the bottom end of the body 1. A first protective cover 3 and a second protective cover 4 are movably connected to the outer surface of the body 1. A first fixing block 5 is fixedly installed at the bottom end of the first protective cover 3. A second fixing block 6 is fixedly connected to the bottom end of the second protective cover 4. Positioning blocks 7 are fixedly installed on the opposite surfaces of the first fixing block 5 and the second fixing block 6. The outer surface of the positioning block 7 is movably connected to the inner surface of the body 1. A connecting rod 8 is fixedly connected to the left side of the second fixing block 6. The left side of the first fixing block 5 is... A connecting block 9 is fixedly installed. A locking block 10 is movably sleeved inside the connecting block 9. A push block 11 is fixedly connected to the left side of the locking block 10. The outer end of the push block 11 passes through the connecting block 9 and extends to the outside of the connecting block 9. There are two locking blocks 10. A screw 12 is fixedly connected to the opposite sides of the two locking blocks 10. A wing nut 13 is threaded onto the outer surface of the screw 12. A return spring 14 is fixedly installed on the opposite sides of the two screws 12. A support block 15 is fixedly connected to the inner end of the return spring 14. The outer surface of the support block 15 is fixedly connected to the inner surface of the connecting block 9.

[0017] During underground mining, rock dust and gravel generated during drilling operations will fly at high speed. The combination of No. 1 protective cover 3 and No. 2 protective cover 4 can directly block the flying objects from hitting the operators. When it is necessary to disassemble No. 1 protective cover 3 and No. 2 protective cover 4, the wing nut 13 is removed by rotating it. The operator presses the push block 11 to move the locking block 10 together. During the movement of the locking block 10, the screw 12 will move. During the movement of the screw 12, it will disengage from the connecting rod 8. At this time, the combination of No. 1 protective cover 3 and No. 2 protective cover 4 can be disassembled. The detachable design facilitates subsequent maintenance.

[0018] The outer surface of the connecting rod 8 is movably sleeved with the inner surface of the first fixing block 5, and the inner surface of the connecting rod 8 is movably sleeved with the outer surface of the screw 12.

[0019] The design of connecting rod 8 increases the contact area between fixing block 5 and fixing block 6, thereby improving the stability of their connection.

[0020] The drill bit 2 has a graduated groove 16 on its outer surface and a positioning ring 17 is movably sleeved on its outer surface.

[0021] The design of the scale groove 16 allows operators to accurately judge the drilling depth, improving the precision of the operation.

[0022] The positioning ring 17 has a pressing block 18 that is movably sleeved inside it, and the outer surface of the pressing block 18 is smooth.

[0023] The positioning ring 17 is fixed by the compression block 18, and the compression block 18 is pressed to fix it to the drill bit 2.

[0024] Among them, a rubber pad 19 is fixedly connected to the left side of the extrusion block 18, and the left side of the rubber pad 19 is movably connected to the drill bit 2.

[0025] The rubber pad 19 is attached to the surface of the drill bit 2, which increases the friction between the rubber pad 19 and the drill bit 2 and improves the fixing effect.

[0026] A compression spring 20 is fixedly installed on the right side of the compression block 18, and the right end of the compression spring 20 is fixedly connected to the inner surface of the positioning ring 17.

[0027] The compression spring 20 pushes the combination of the compression block 18 and the rubber pad 19 to fit against the drill bit 2, reducing the impact of external vibration.

[0028] Among them, a threaded rod 21 is movably sleeved on the right side of the extrusion block 18, the outer surface of the threaded rod 21 is threadedly sleeved with the inner surface of the positioning ring 17, and a handle 22 is fixedly connected to the right side of the threaded rod 21.

[0029] The operator rotates the handle 22 to drive the threaded rod 21 to rotate, and the thread force generated by the rotation of the threaded rod 21 will push the extrusion block 18 to move.

[0030] Working principle and usage process of this utility model: During underground mining, the operator holds the lever on the machine body 1 and mines using the drill bit 2. Rock dust and gravel generated during drilling will fly at high speed. The combination of the first protective cover 3 and the second protective cover 4 can directly block the flying debris from hitting the operator. The first protective cover 3 and the second protective cover 4 are made of transparent polycarbonate. When it is necessary to disassemble the first protective cover 3 and the second protective cover 4, the operator can remove the wing nut 13 by turning it, which will open the fixing of the screw 12. Repeat the operation on the other side. At this time, the operator presses the push block 11 to move the locking block 10 together. The return spring 14 deforms. During the movement of the locking block 10, the screw 12 will move. During the movement of the screw 12, it will disengage from the connecting rod 8. At this time, the combination of the first protective cover 3 and the second protective cover 4 can be disassembled. The detachable design facilitates subsequent maintenance and repair. The combination of the first protective cover 3 and the second protective cover 4 improves the safety of rock drilling operations.

[0031] During rock drilling, when the preset depth needs to be reached, the operator slides the positioning ring 17 on the drill bit 2, moving the bottom end of the positioning ring 17 to the preset scale groove 16. At this time, by rotating the handle 22, the threaded rod 21 is rotated together. The thread force generated by the rotation of the threaded rod 21 will drive the pressing block 18 to move. During the movement of the pressing block 18, the rubber pad 19 will be brought into contact with the surface of the drill bit 2. The elastic force of the pressing spring 20 always pushes the combination of the pressing block 18 and the rubber pad 19 to contact the drill bit 2, avoiding vibration from causing poor contact, thus completing the fixation between the positioning ring 17 and the drill bit 2. The design of the scale groove 16 and the positioning ring 17 improves the accuracy of rock drilling operations.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling device for underground mining, comprising a body (1), characterized in that: A drill bit (2) is movably sleeved at the bottom of the body (1). A first protective cover (3) and a second protective cover (4) are movably connected to the outer surface of the body (1). A first fixing block (5) is fixedly installed at the bottom of the first protective cover (3). A second fixing block (6) is fixedly connected to the bottom of the second protective cover (4). Positioning blocks (7) are fixedly installed on the opposite sides of the first fixing block (5) and the second fixing block (6). The outer surface of the positioning block (7) is movably connected to the inner surface of the body (1). A connecting rod (8) is fixedly connected to the left side of the second fixing block (6). A connecting block (9) is fixedly installed to the left side of the first fixing block (5). A locking block (10) is movably fitted inside the block (9). A push block (11) is fixedly connected to the left side of the locking block (10). The outer end of the push block (11) passes through the connecting block (9) and extends to the outside of the connecting block (9). There are two locking blocks (10). A screw (12) is fixedly connected to the opposite side of the two locking blocks (10). A wing nut (13) is threaded onto the outer surface of the screw (12). A return spring (14) is fixedly installed on the opposite side of the two screws (12). A support block (15) is fixedly connected to the inner end of the return spring (14). The outer surface of the support block (15) is fixedly connected to the inner surface of the connecting block (9).

2. The underground mining drilling device according to claim 1, characterized in that: The outer surface of the connecting rod (8) is movably sleeved with the inner surface of the first fixing block (5), and the inner surface of the connecting rod (8) is movably sleeved with the outer surface of the screw (12).

3. The underground mining drilling device according to claim 1, characterized in that: The outer surface of the drill bit (2) is provided with a scale groove (16), and a positioning ring (17) is movably sleeved on the outer surface of the drill bit (2).

4. The underground mining drilling device according to claim 3, characterized in that: The positioning ring (17) is movably fitted with a pressing block (18), and the outer surface of the pressing block (18) is smooth.

5. The underground mining drilling device according to claim 4, characterized in that: A rubber pad (19) is fixedly connected to the left side of the extrusion block (18), and the left side of the rubber pad (19) is movably connected to the drill bit (2).

6. The underground mining drilling device according to claim 4, characterized in that: A compression spring (20) is fixedly installed on the right side of the compression block (18), and the right end of the compression spring (20) is fixedly connected to the inner surface of the positioning ring (17).

7. The underground mining drilling device according to claim 4, characterized in that: A threaded rod (21) is movably sleeved on the right side of the extrusion block (18). The outer surface of the threaded rod (21) is threadedly sleeved with the inner surface of the positioning ring (17). A handle (22) is fixedly connected to the right side of the threaded rod (21).

Images