Coal mine underground trepanning device

Abstract

The invention discloses an underground drilling device for a coal mine. The underground drilling device comprises a drilling machine body, a protective sleeve and a processing component, the protective sleeve is a telescopic sleeve, the fixed end of the protective sleeve sleeves the working end of the drilling machine body, and the telescopic end of the protective sleeve is provided with a first observation window and a discharge port. An elastic unit is further arranged between the telescopic end and the fixed end of the protective sleeve; the treatment component comprises a treatment bin coaxially arranged at the working end of the drilling machine body in a sleeving mode and located in the protection sleeve, and a first treatment assembly and a second treatment assembly which are connected with the treatment bin. According to the drilling device, the protection sleeve is used for intercepting chippings generated in the drilling process and discharging the chippings through the discharging opening, so that potential safety hazards caused by chipping splashing to workers are reduced, meanwhile, dust falling is conducted on smoke generated in the drilling process through cooperation of the first treatment assembly and the second treatment assembly, smoke dissipation is reduced, and the drilling efficiency is improved. Therefore, a worker can observe a drilling point more clearly, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground coal mine drilling, in particular to an underground coal mine drilling device. Background Art

[0002] The underground coal mine drilling device is a key equipment in coal mining and disaster prevention. It is mainly used to accurately drill holes in underground rock or coal seams. Its core function is to achieve directional, stable and efficient drilling operations while ensuring construction safety.

[0003] In existing underground coal mine drilling operations, manual handheld drills are still widely used. They are usually used to open down-the-holes or operate in complex terrains that are difficult for large equipment to enter. However, manual handheld drills will generate a large amount of debris and smoke when working, which will affect the work efficiency and even personal safety of the workers. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned deficiencies and provide a coal mine underground hole opening device to achieve preliminary processing of debris and smoke and ensure work efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: an underground coal mine drilling device, comprising a drilling machine body, a protective sleeve and a processing component;

[0006] The protective sleeve is a telescopic sleeve, and an elastic unit is provided between the telescopic end and the fixed end. The fixed end of the protective sleeve is coaxially sleeved on the working end of the drilling rig body. The telescopic end is provided with a first observation window and a discharge port, and the telescopic stroke of the telescopic end corresponds to the drill bit feed length of the drilling rig body.

[0007] The processing component includes a processing chamber coaxially sleeved on the working end of the drilling rig body and located in the protective sleeve, and a first processing assembly and a second processing assembly respectively connected to the processing chamber;

[0008] The first processing component is used to deliver the spray medium into the protective sleeve;

[0009] The second processing component is used to guide the smoke and dust in the protective sleeve to the spraying area of the first processing component.

[0010] Furthermore, a first chamber for conveying airflow is provided in the processing chamber;

[0011] The first processing assembly includes a plurality of water pipes evenly distributed in the protective sleeve and connected to the first chamber, and each of the water pipes is used to transport a cleaning medium into the protective sleeve.

[0012] Furthermore, the processing chamber is provided with a second chamber for conveying airflow;

[0013] The second processing assembly includes a delivery chamber coaxially sleeved on the working end of the drilling rig body and connected to the processing chamber, and the delivery chamber is communicated with the second chamber;

[0014] It also includes a plurality of air delivery pipes uniformly distributed circumferentially on the delivery bin, each of the air delivery pipes being used to deliver air flow into the protective sleeve.

[0015] Furthermore, the delivery chamber is rotatably connected to the processing chamber;

[0016] The drilling rig body is also provided with a transmission component, which includes:

[0017] A first gear fixedly connected to the drill drive shaft, a second gear arranged at the working end of the drill body, and an inner gear ring fixedly connected to the conveying bin; wherein the second gear simultaneously meshes with the first gear and the inner gear ring.

[0018] Furthermore, the water pipe is a telescopic pipe, the telescopic end of which extends into the interior of the telescopic end of the protective sleeve and faces the first observation window, so that the water pipe can clean the first observation window when transporting the cleaning medium;

[0019] The end of the first observation window away from the water pipe is further provided with a splash plate.

[0020] Furthermore, a second observation window corresponding to the first observation window is provided on the fixed end of the protective sleeve.

[0021] The beneficial effects of the present invention are embodied in:

[0022] The present invention cooperates with the protective sleeve and the processing component. The protective sleeve is used to intercept the debris generated during the drilling process and discharge it through the discharge port to reduce the safety hazards caused by the splashing of debris to the workers. At the same time, the smoke and dust generated during the drilling process are reduced by the cooperation of the first processing component and the second processing component to reduce the escape of smoke and dust, so that the workers can observe the drilling point more clearly and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional view of the underground coal mine drilling device of the present invention;

[0024] Figure 2 This is a cross-sectional view of the underground coal mine drilling device of the present invention;

[0025] Figure 3 for Figure 2 Magnified view at point A in the middle.

[0026] In the picture:

[0027] 01. Drilling rig body; 02. Drill bit; 1. Protective sleeve; 11. First observation window; 12. Discharge port; 13. Elastic unit; 14. Second observation window; 2. Processing components; 21. Processing chamber; 211. First chamber; 212. Second chamber; 22. First processing assembly; 221. Water pipe; 23. Second processing assembly; 231. Delivery chamber; 232. Air pipe; 3. Transmission components; 31. First gear; 32. Second gear; 33. Inner ring gear; 4. Splash plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-3 , the present invention discloses a coal mine underground drilling device, comprising a drilling machine body 01, a protective sleeve 1 and a processing component 2;

[0030] The protective sleeve 1 is a telescopic sleeve, the fixed end of which is coaxially sleeved on the working end of the drill body 01. The telescopic end is provided with a first observation window 11 for the operator to observe the drilling position and a discharge port 12 provided on the protective sleeve 1. When the drill body 01 is in operation, the discharge port 12 is located below the drill bit 02, and the telescopic stroke of the telescopic end of the drill body 01 corresponds to the feed length of the drill bit 02 of the drill body 01.

[0031] An elastic unit 13 is further provided between the telescopic end and the fixed end of the protective sleeve 1, and the elastic unit 13 is used to apply a thrust to the telescopic end away from the fixed end;

[0032] The processing unit 2 includes a processing chamber 21 coaxially sleeved on the working end of the drilling rig body 01 and located in the protective sleeve 1, and a first processing component 22 and a second processing component 23 respectively connected to the processing chamber 21;

[0033] The processing chamber 21 is connected to an external delivery pipe (not shown in the figure), and the delivery pipe is used to deliver the cleaning medium into the processing chamber 21;

[0034] The first processing assembly 22 is used to deliver the spray medium into the protective sleeve 1;

[0035] The second processing assembly 23 is used to transport the smoke and dust in the protective sleeve 1 toward the spraying direction of the first processing assembly 22 .

[0036] In a specific implementation, when drilling is required, the telescopic end of the protective sleeve 1 and the drill bit 02 are pressed against the mine wall, and at the same time the elastic unit 13 is squeezed and prevents the telescopic end of the protective sleeve 1 from moving accidentally. Then the drilling rig body 01 drives the drill bit 02 to work. When the drill bit 02 is working, debris is generated and splashes into contact with the inner wall of the protective sleeve to offset the impact force, and leaves the protective sleeve 1 from the discharge port 12 under the action of gravity, thereby preventing the debris from splashing around. At the same time, the first processing component 22 transports the spray medium into the protective sleeve 1 so that it contacts the smoke generated during drilling to reduce the dust and prevent the smoke from escaping. The second processing component 23 transports the smoke in the protective sleeve 1 to the spray area of the first processing component 22 to improve the dust reduction efficiency. The spray medium that has been dusted leaves the protective sleeve 1 through the discharge port 12.

[0037] In the present invention, during the drilling process, through the cooperation between the protective sleeve 1 and the processing component 2, the protective sleeve 1 is used to intercept the debris generated during the drilling process and discharge it through the discharge port 12, so as to reduce the safety hazards caused by the splashing of debris to the workers. At the same time, through the cooperation between the first processing component 22 and the second processing component 23, the smoke and dust generated during the drilling process are reduced to reduce the escape of smoke and dust, so that the workers can observe the drilling point more clearly and improve work efficiency.

[0038] Preferably, the elastic unit 13 may be a spring in the prior art.

[0039] Preferably, the cleaning medium may be water.

[0040] It should be noted that the elastic unit 13 has sufficient elastic force to prevent the telescopic end of the protective sleeve 1 from accidentally moving, and when the telescopic end of the protective sleeve 1 contracts, its elastic force will not affect the force applied by the staff.

[0041] In one embodiment, the processing chamber 21 is provided with a first chamber 211 connected to the delivery pipe, and the first chamber 211 is used to deliver the cleaning medium;

[0042] The first processing component 22 includes a plurality of water pipes 221 evenly distributed in the protective sleeve 1 and connected to the second chamber 212. When the drilling rig body 01 is working, each water pipe 221 is arranged above the drill bit 02 and is used to transport the cleaning medium from top to bottom to the end of the protective sleeve 1 close to the drill hole.

[0043] With this design, during the drilling process, the delivery pipe delivers the cleaning medium to the first chamber 211 and sprays it from top to bottom toward the drilling position in the protective sleeve 1 through each water pipe 221, so that it comes into contact with the smoke. At this time, the second processing component 23 blows the smoke at other positions in the protective sleeve 1 toward the direction close to the cleaning medium to improve the contact efficiency between the cleaning medium and the smoke. At the same time, the cleaning medium flushes the debris in the protective sleeve 1 and brings it out of the protective sleeve 1 through the discharge port 12.

[0044] In one embodiment, the processing chamber 21 is further provided with a second chamber 212 for conveying air flow, and the second chamber 212 is connected to an external air delivery pipe 232 (not shown in the figure);

[0045] The second processing assembly 23 includes a delivery chamber 231 coaxially sleeved on the working end of the drilling rig body 01 and connected to the processing chamber 21, and the delivery chamber 231 is communicated with the second chamber 212;

[0046] It also includes air delivery pipes 232 that are evenly distributed circumferentially on the delivery bin 231 and deliver air flow into the protective sleeve 1 .

[0047] With this design, during the drilling process, the air supply pipe 232 delivers the air flow to the second chamber 212 and blows it into the protective sleeve 1 through each air supply pipe 232, and drives the smoke and dust to flow toward the direction close to the drilling hole so that it comes into contact with the cleaning medium, thereby improving the dust reduction efficiency.

[0048] It should be noted that when the worker uses a pneumatic handheld drill, the second chamber 212 can be connected to the air pipe 232 of the energy supply system.

[0049] In one embodiment, the delivery chamber 231 is rotatably connected to the processing chamber 21;

[0050] The working end of the drill body 01 is further provided with a transmission component 3, which includes a first gear 31 provided on the driving shaft of the drill bit 02, and a second gear 32 provided on the working end of the drill body 01 and meshing with the first gear 31;

[0051] It also includes an inner gear ring 33 disposed on the delivery bin 231 and meshing with the second gear 32;

[0052] Thus, a rotation transmission chain is formed, which drives the first gear 31 to rotate through the drill bit 02 and makes it engage with the second gear 32, thereby driving the conveying bin 231 connected to the inner gear ring 33 to rotate.

[0053] With this design, when the drill bit 02 is working, the drill bit 02 drives the first gear 31 to rotate so that it engages with the second gear 32, and the engagement of the second gear 32 with the inner ring gear 33 drives the delivery bin 231 to rotate, so that each air delivery pipe 232 delivers air flow while rotating around the axis of the drill bit 02 as the center of the circle, further improving the blowing efficiency.

[0054] It should be noted that a reduction transmission ratio is formed between the first gear 31 , the second gear 32 and the inner ring gear 33 , thereby preventing the delivery bin 231 from rotating too fast and affecting the work.

[0055] In one embodiment, the water pipe 221 is a telescopic pipe, the telescopic end of which extends into the interior of the telescopic end of the protective sleeve 1 and toward the first observation window 11. When the water pipe 221 delivers the cleaning medium, the cleaning medium can clean the first observation window 11.

[0056] A splash plate 4 is further provided at one end of the first observation window 11 away from the water pipe 221. When the cleaning medium contacts the splash plate 4, the splash plate 4 is used to expand the spraying range of the cleaning medium.

[0057] With this design, when the water pipe 221 delivers the cleaning medium into the protective sleeve 1, the cleaning medium contacts the first observation window 11 and thereby flushes it, thereby preventing impurities in the sleeve from adhering to the first observation window 11 and ensuring that the staff can clearly observe the working conditions at the drilling site. Subsequently, the cleaning medium contacts the splash plate 4 and is splashed, thereby expanding the contact range between the cleaning medium and the smoke and dust, further improving the cleaning efficiency.

[0058] When the drill bit 02 is fed, the telescopic end of the protective sleeve 1 contracts and drives the water pipe 221 to contract at the same time, thereby ensuring that the water pipe 221 does not interfere with the operation of the protective sleeve 1.

[0059] In one embodiment, a second observation window 14 corresponding to the first observation window 11 is further provided on the fixed end of the protective sleeve 1 . When the telescopic end of the protective sleeve 1 is retracted into the fixed end, the first observation window 11 and the second observation window 14 overlap.

[0060] With this design, when the drill bit 02 is fed, the telescopic end of the protective sleeve 1 is retracted toward the fixed end. At this time, the staff can still observe the drilling working conditions through the second observation window 14 and the first observation window 11 in turn.

[0061] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0062] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] In addition, "plurality" means two or more.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coal mine underground drilling device, characterized in that: It comprises a drilling rig body (01), a protective sleeve (1) and a processing component (2); The protective sleeve (1) is a telescopic sleeve, and an elastic unit (13) is provided between the telescopic end and the fixed end thereof. The fixed end of the protective sleeve (1) is coaxially sleeved on the working end of the drilling rig body (01), and the telescopic end is provided with a first observation window (11) and a discharge port (12), and the telescopic stroke of the telescopic end corresponds to the feed length of the drill bit (02) of the drilling rig body (01); The processing component (2) comprises a processing chamber (21) coaxially sleeved on the working end of the drilling rig body (01) and located in the protective sleeve (1), and a first processing assembly (22) and a second processing assembly (23) respectively connected to the processing chamber (21); The first processing component (22) is used to transport the spraying medium into the protective sleeve (1); The second processing component (23) is used to guide the smoke and dust in the protective sleeve (1) to the spraying area of the first processing component (22).

2. The underground coal mine drilling device according to claim 1, characterized in that: The processing chamber (21) is provided with a first chamber (211) for conveying airflow; The first processing assembly (22) comprises a plurality of water pipes (221) uniformly distributed in the protective sleeve (1) and in communication with the first chamber (211), each of the water pipes (221) being used to transport a cleaning medium into the protective sleeve (1).

3. The underground coal mine drilling device according to claim 1, characterized in that: The processing chamber (21) is further provided with a second chamber (212) for conveying air flow; The second processing assembly (23) comprises a delivery chamber (231) coaxially sleeved on the working end of the drilling rig body (01) and connected to the processing chamber (21), and the delivery chamber (231) is in communication with the second chamber (212); It also includes a plurality of air delivery pipes (232) uniformly distributed circumferentially on the delivery bin (231), each of the air delivery pipes (232) being used to deliver airflow into the protective sleeve (1).

4. The underground coal mine drilling device according to claim 3, characterized in that: The conveying chamber (231) is rotatably connected to the processing chamber (21); The drilling rig body (01) is further provided with a transmission component (3), which comprises: A first gear (31) fixedly connected to the driving shaft of the drill bit (02), a second gear (32) arranged at the working end of the drilling rig body (01), and an inner gear ring (33) fixedly connected to the conveying bin (231); wherein the second gear (32) simultaneously meshes with the first gear (31) and the inner gear ring (33).

5. The underground coal mine drilling device according to claim 2, characterized in that: The water delivery pipe (221) is a telescopic pipe, the telescopic end of which extends into the interior of the telescopic end of the protective sleeve (1) and toward the first observation window (11), so that the water delivery pipe (221) can clean the first observation window (11) when transporting the cleaning medium.

6. The underground coal mine drilling device according to claim 1, characterized in that: A second observation window (14) corresponding to the first observation window (11) is also provided on the fixed end of the protective sleeve (1).

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