Drilling device used between coal face frames
By designing drilling devices used between coal mining face frames, including anchor drilling rods, rotatable connecting rods and water injection components, the time-consuming and labor-intensive drilling operation between coal mining face construction frames is solved, convenient and efficient drilling operation is achieved, and manpower and material costs are saved.
Patent Information
- Application Number
- CN202422197084.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-09
AI Technical Summary
When drilling holes in small-scale areas between the construction frames of the coal mining working face, the operation is time-consuming and labor-intensive. The existing column drilling machine has large volume and inconvenient transportation. When the number of drilling holes is small and the depth is shallow, labor and material resources are seriously wasted, and hole collapse is likely to occur after construction.
A drilling device for use between coal mining face frames is designed, including a anchor drilling rod, a rotatable connecting rod and a water injection assembly. Drilling is achieved through the rotation of the connecting rod and providing hydraulic support through the water injection assembly to reduce labor consumption during drilling.
This device makes drilling operation more convenient, solves the problems of small space on the construction site and time-consuming and labor-intensive operation, improves drilling efficiency, saves time and labor costs, and avoids hole collapse problems.
Smart Images
Figure CN223018571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine drilling, in particular to a drilling device for the space between supports in a coal mining face. Background Art
[0002] When performing fire prevention and extinguishing tasks in an underground coal mining face, it is necessary to construct fire prevention and extinguishing grouting holes. Usually, a column-mounted drill is used for drilling. The drill has a large volume, which is inconvenient for transportation and complex to operate at the working face site with a small operation space. Moreover, it is even prone to increasing potential safety hazards for small-scale construction. Also, when the number of drilling holes is small and the drilling depth is shallow, using a column-mounted drill for drilling causes great waste of labor and materials. If a rib anchor drill rod is used alone for construction, after the construction of the drilling hole is completed and the twist drill rod is pulled out, the drilling hole is prone to caving, resulting in the subsequent inability to lower the casing into the hole.
[0003] Therefore, the existing technology needs to be further developed. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide a drilling device for the space between supports in a coal mining face, so as to solve the technical problem that it is time-consuming and laborious to operate when performing small-scale drilling in the space between supports in a coal mining face in related technologies.
[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions: A drilling device for the space between supports in a coal mining face is provided, including: a rib anchor drill rod, which includes a drill sleeve and a drill rod. The drill sleeve is rotatably arranged, and the drill rod is of a hollow structure and is used for cutting rocks and soil layers; a connecting rod, one end of the connecting rod is connected to the drill sleeve, the other end of the connecting rod is connected to the drill rod, and a through hole is arranged on the connecting rod. By rotating the drill sleeve, the connecting rod and the drill rod are driven to rotate, thereby performing drilling; a water injection assembly, which includes a sleeve rod and a water injection port. The water injection port is arranged on the sleeve rod. The sleeve rod is sleeved on the connecting rod and is rotatably arranged on the connecting rod. Water sequentially flows into the drill rod through the water injection port and the through hole.
[0006] Further, the connecting rod includes a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion, the second connecting portion, and the third connecting portion are connected in sequence. The first connecting portion is connected to the drill sleeve, the sleeve rod is sleeved on the second connecting portion, and the third connecting portion is connected to the drill rod.
[0007] Further, the first connecting portion is detachably connected to the drill sleeve.
[0008] Further, the first connecting portion is provided with locking teeth, and the drill sleeve is provided with a slot matching the locking teeth. The locking teeth are clamped in the slot to make the connecting rod detachable relative to the rib anchor drill rod.
[0009] Further, the third connecting portion is detachably connected to the drill rod.
[0010] Further, an external thread is provided on a side of the third connecting portion away from the second connecting portion, and an internal thread mating with the external thread is provided at one end of the drill pipe close to the third connecting portion.
[0011] Further, there are a plurality of through holes, and the through holes are arranged around the circumference of the connecting rod. Rotate the connecting rod to make each through hole correspond to the water injection port.
[0012] Further, the water injection assembly further includes a water pipe, and the water pipe is detachably connected to the water injection port.
[0013] Further, the drilling device for the space between supports in the coal mining face further includes a sealing assembly, and the sealing assembly is arranged on the water pipe. When the water pipe is connected to the water injection port, the connection between the water pipe and the water injection port is sealed by the sealing assembly.
[0014] Further, the sealing assembly includes an expansion ring and a sealing ring. The expansion ring has elasticity. The expansion ring is connected to the pipe orifice of the water pipe. The sealing ring is sleeved outside the expansion ring and the pipe orifice of the water pipe. Press the expansion ring to deform the expansion ring and the pipe orifice of the water pipe, so that the pipe orifice of the water pipe, the expansion ring and the sealing ring all enter the water injection port. When the expansion ring resets, it drives the sealing ring to abut against the inner wall of the water injection port, thereby preventing water from flowing out of the water injection port.
[0015] Beneficial effects:
[0016] 1. For the drilling device for the space between supports in the coal mining face of the present utility model, by designing a rotatable connecting rod structure and cooperating with the rib anchor drill pipe, the drilling operation is made more convenient, solving the problems of narrow construction site space and time-consuming and laborious operation when drilling holes in the space between supports in the coal mining face.
[0017] 2. The drilling device for the space between supports in the coal mining face of the present utility model has a relatively simple structure, without too many complex components, is easy to carry and use, not only improves the drilling efficiency, but also saves a large amount of time and labor costs.
[0018] 3. For the drilling device for the space between supports in the coal mining face of the present utility model, the drill pipe and the connecting rod are detachable. After the drilling is completed, there is no need to pull out the drill pipe, solving the problems of easy hole collapse after the construction drilling is completed and the subsequent casing cannot be inserted into the hole. Description of the drawings
[0019] Figure 1 is an exploded view of the drilling device for the space between supports in the coal mining face adopted in the embodiment of the present utility model;
[0020] Figure 2 is a schematic structural view of one perspective of the connecting rod of the drilling device for the space between supports in the coal mining face adopted in the embodiment of the present utility model;
[0021] Figure 3 It is a schematic structural diagram of the water injection component of the drilling device used between supports in the coal mining face in the embodiment of the present utility model;
[0022] Figure 4 It is a schematic structural diagram of another perspective of the connecting rod of the drilling device used between supports in the coal mining face in the embodiment of the present utility model;
[0023] Figure 5 It is a schematic structural diagram of the drill sleeve of the drilling device used between supports in the coal mining face in the embodiment of the present utility model;
[0024] Figure 6 It is a schematic structural diagram of the water pipe of the drilling device used between supports in the coal mining face in the embodiment of the present utility model;
[0025] Figure 7 It is a schematic structural diagram of the sealing component of the drilling device used between supports in the coal mining face in the embodiment of the present utility model.
[0026] Among them, the above-mentioned drawings include the following reference numerals:
[0027] 1, rib anchor drill rod; 11, drill sleeve; 111, card slot; 12, drill rod; 2, connecting rod; 21, through hole; 22, first connecting portion; 221, card teeth; 23, second connecting portion; 24, third connecting portion; 3, water injection component; 31, sleeve rod; 32, water injection port; 33, water pipe; 4, sealing component; 41, expansion ring; 42, sealing ring. Detailed implementation manners
[0028] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0029] According to the embodiment of the present utility model, a drilling device for use between supports in a coal mining face is provided. Please refer to Figures 1 to 7, including: the rib-anchoring drill rod 1, the rib-anchoring drill rod 1 includes a drill sleeve 11 and a drill rod 12, the drill sleeve 11 is rotatably arranged, the drill rod 12 is a hollow structure, and the drill rod 12 is used for cutting rocks and soil layers; a connecting rod 2, one end of the connecting rod 2 is connected to the drill sleeve 11, the other end of the connecting rod 2 is connected to the drill rod 12, a through hole 21 is arranged on the connecting rod 2, by rotating the drill sleeve 11, the connecting rod 2 and the drill rod 12 are driven to rotate, so as to drill holes; a water injection assembly 3, the water injection assembly 3 includes a sleeve rod 31 and a water injection port 32, the water injection port 32 is arranged on the sleeve rod 31, the sleeve rod 31 is sleeved on the connecting rod 2, and the sleeve rod 31 is rotatably arranged on the connecting rod 2, water sequentially flows through the water injection port 32 and the through hole 21 into the drill rod 12. A connecting rod 2 is arranged between the drill sleeve 11 and the drill rod 12, the drill sleeve 11 provides rotational power during the drilling process, the drill sleeve 11 rotates, driving the connecting rod 2 and the drill rod 12 to rotate, realizing the drilling of the drill rod 12. The sleeve rod 31 of the water injection assembly 3 is sleeved on the connecting rod 2, and the rotating connecting rod 2 does not affect the upper end of the sleeve rod 31 from injecting water into the water injection port 32, and water enters the through hole 21 of the connecting rod 2 through the water injection port 32 and finally flows into the drill rod 12. During the drilling process, water not only plays a role in cooling the drill bit, but also can prevent dust from spreading. For the operation tasks between the supports in the coal mining face and with relatively shallow drilling depths, this drilling device is small and convenient for transportation and carrying, simple and safe to operate, and there is no need to dispatch large drilling rigs. The drilling device for between the supports in the coal mining face in this embodiment solves the technical problem of time-consuming and laborious operation in the related technology when drilling in a small area between the supports in the coal mining face.
[0030] In this embodiment, the rib-anchoring drill rod 1 is handheld, which is more convenient for carrying. Using this device can effectively reduce the number of construction workers, solve the problem that construction cannot be carried out due to limited personnel in the excavation and mining face, and change from the original five-person construction to two-person construction, greatly saving labor costs.
[0031] Refer to Figure 1 and Figure 2 , for the drilling device for between the supports in the coal mining face in this embodiment, the connecting rod 2 includes a first connecting portion 22, a second connecting portion 23 and a third connecting portion 24, the first connecting portion 22, the second connecting portion 23 and the third connecting portion 24 are connected in sequence, the first connecting portion 22 is connected to the drill sleeve 11, the sleeve rod 31 is sleeved on the second connecting portion 23, and the third connecting portion 24 is connected to the drill rod 12. The connecting rod 2 is subdivided into three parts and connected in sequence. When a certain part is damaged or needs to be replaced, there is no need to replace the entire connecting rod, and only local treatment needs to be carried out for specific problems. This greatly reduces the maintenance cost and time, and improves the maintenance efficiency of the equipment.
[0032] Refer to Figure 1 , for the drilling device for between the supports in the coal mining face in this embodiment, the first connecting portion 22 is detachably connected to the drill sleeve 11 for easy replacement and maintenance.
[0033] Refer to Figure 4 and Figure 5 For the drilling device used between supports in a coal mining face, a clamping tooth 221 is provided on the first connecting portion 22, and a clamping groove 111 matching the clamping tooth 221 is provided on the drill sleeve 11. The clamping tooth 221 is clamped in the clamping groove 111 so that the connecting rod 2 is detachable relative to the rib anchor drill pipe 1. Through the mutual engagement of the clamping tooth 221 and the clamping groove 111, the quick disassembly and installation of the connecting rod 2 and the drill sleeve 11 can be conveniently achieved. This design not only improves work efficiency but also reduces the operation difficulty, enabling construction personnel to easily complete relevant operations.
[0034] Refer to Figure 1 and Figure 2 For the drilling device used between supports in a coal mining face, the third connecting portion 24 is detachably connected to the drill pipe 12 for convenient replacement and maintenance in a timely manner.
[0035] Refer to Figure 1 and Figure 2 For the drilling device used between supports in a coal mining face, an external thread is provided on one side of the third connecting portion 24 away from the second connecting portion 23, and an internal thread matching the external thread is provided at one end of the drill pipe 12 close to the third connecting portion 24. The drill pipe 12 is threadedly connected to the connecting rod 2 to achieve quick disassembly and assembly.
[0036] Refer to Figure 2 and Figure 3 For the drilling device used between supports in a coal mining face, there are multiple through holes 21, and each through hole 21 is arranged around the circumference of the connecting rod 2. Rotate the connecting rod 2 so that each through hole 21 corresponds to the water injection port 32. Since there are multiple through holes 21, during the drilling process, the rotating connecting rod 2 can be timely docked with the water injection port, enabling water to continuously enter the drill pipe 12.
[0037] Refer to Figure 6 and Figure 7 For the drilling device used between supports in a coal mining face, the water injection assembly 3 further includes a water pipe 33, and the water pipe 33 is detachably connected to the water injection port 32 for convenient replacement and maintenance of components in a timely manner.
[0038] Refer to Figure 6 and Figure 7 For the drilling device used between supports in a coal mining face, the drilling device used between supports in a coal mining face further includes a sealing assembly 4. The sealing assembly 4 is arranged on the water pipe 33. When the water pipe 33 is connected to the water injection port 32, the connection between the water pipe 33 and the water injection port 32 is sealed through the sealing assembly 4. The main function of the sealing assembly 4 is to ensure good sealing at the connection between the water pipe 33 and the water injection port 32 and prevent water leakage during the water injection process.
[0039] Referring to Figure 7 , for the drilling device between supports in a coal mining face in this embodiment, the sealing assembly 4 includes an expansion ring 41 and a sealing ring 42. The expansion ring 41 is elastic. The expansion ring 41 is connected to the pipe orifice of the water pipe 33. The sealing ring 42 is sleeved on the outer sides of the expansion ring 41 and the pipe orifice of the water pipe 33. Press the expansion ring 41 to deform the pipe orifice of the water pipe 33 and the expansion ring 41, so that the pipe orifice of the water pipe 33, the expansion ring 41 and the sealing ring 42 all enter the water injection port 32. When the expansion ring 41 resets, it drives the sealing ring 42 to abut against the inner wall of the water injection port 32, thereby preventing water from flowing out of the water injection port 32. By pressing the expansion ring 41 to deform it with the pipe orifice of the water pipe 33, the pipe orifice of the water pipe 33, the expansion ring 41 and the sealing ring 42 enter the water injection port 32 as a whole. When the expansion ring 41 resets, the force for it to return to its original state will push the sealing ring 42 to closely abut against the inner wall of the water injection port 32, forming an effective sealing barrier, thereby preventing water from flowing out of the water injection port 32.
[0040] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0041] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and will not be elaborated here.
[0042] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.
[0043] In the above embodiments of this application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0044] The above are only the preferred embodiments of this application. It should be noted that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this application.
Claims
1. A drilling device for use between frames of a coal mining face, characterized in that: include: An anchor drill rod (1), the anchor drill rod (1) comprising a drill sleeve (11) and a drill rod (12), the drill sleeve (11) being rotatably arranged, the drill rod (12) being a hollow structure, and the drill rod (12) being used for cutting rocks and soil layers; A connecting rod (2), one end of the connecting rod (2) is connected to the drill sleeve (11), and the other end of the connecting rod (2) is connected to the drill rod (12); a through hole (21) is provided on the connecting rod (2); the drill sleeve (11) is rotated to drive the connecting rod (2) and the drill rod (12) to rotate, thereby drilling; A water injection assembly (3), the water injection assembly (3) comprising a sleeve rod (31) and a water injection port (32), the water injection port (32) being arranged on the sleeve rod (31), the sleeve rod (31) being sleeved on the connecting rod (2), the sleeve rod (31) being rotatably arranged on the connecting rod (2), and water sequentially flows into the drill rod (12) through the water injection port (32) and the through hole (21).
2. The drilling device for use between frames of a coal mining face according to claim 1, characterized in that: The connecting rod (2) comprises a first connecting portion (22), a second connecting portion (23) and a third connecting portion (24); the first connecting portion (22), the second connecting portion (23) and the third connecting portion (24) are connected in sequence; the first connecting portion (22) is connected to the drill sleeve (11); the sleeve rod (31) is sleeved on the second connecting portion (23); and the third connecting portion (24) is connected to the drill rod (12).
3. The drilling device for use between frames of a coal mining face according to claim 2, characterized in that: The first connecting portion (22) is detachably connected to the drill sleeve (11).
4. The drilling device for use between frames of a coal mining face according to claim 3, characterized in that: The first connecting portion (22) is provided with a latching tooth (221), the drill sleeve (11) is provided with a latching groove (111) matching the latching tooth (221), and the latching tooth (221) is latched in the latching groove (111) so that the connecting rod (2) is detachable relative to the anchor drill rod (1).
5. The drilling device for use between frames of a coal mining face according to claim 4, characterized in that: The third connecting portion (24) is detachably connected to the drill rod (12).
6. The drilling device for use between frames of a coal mining face according to claim 5, characterized in that: The third connecting portion (24) is provided with an external thread on a side away from the second connecting portion (23), and the drill rod (12) is provided with an internal thread matching the external thread on one end close to the third connecting portion (24).
7. The drilling device for use between frames of a coal mining face according to claim 2, characterized in that: There are a plurality of through holes (21), each of which is arranged around a circle of the connecting rod (2). The connecting rod (2) is rotated so that each of the through holes (21) is arranged corresponding to the water injection port (32).
8. The drilling device for use between frames of a coal mining face according to claim 1, characterized in that: The water injection assembly (3) further comprises a water passage pipe (33), wherein the water passage pipe (33) is detachably connected to the water injection port (32).
9. The drilling device for use between frames of a coal mining face according to claim 8, characterized in that: The drilling device for use between frames of a coal mining working face further comprises a sealing assembly (4), wherein the sealing assembly (4) is arranged on the water pipe (33), and when the water pipe (33) is connected to the water injection port (32), the connection between the water pipe (33) and the water injection port (32) is sealed by the sealing assembly (4).
10. The drilling device for use between frames of a coal mining face according to claim 9, characterized in that: The sealing assembly (4) comprises an expansion ring (41) and a sealing ring (42); the expansion ring (41) is elastic and connected to the pipe mouth of the water pipe (33); the sealing ring (42) is sleeved on the outside of the expansion ring (41) and the pipe mouth of the water pipe (33); the expansion ring (41) is pressed to deform the expansion ring (41) and the pipe mouth of the water pipe (33), so that the pipe mouth of the water pipe (33), the expansion ring (41) and the sealing ring (42) all enter the water injection port (32); when the expansion ring (41) is reset, the sealing ring (42) is driven to abut against the inner wall of the water injection port (32), thereby preventing water from flowing out of the water injection port (32).