Drilling device and method for coal mine mining

Abstract

A drilling device and method for coal mining, belonging to the field of coal mining equipment. It comprises a feed device and a movable device, wherein the movable device comprises a bracket, a drilling device, and a cleaning device; the bracket is disposed at the upper end of the feed device and can be moved back and forth by the feed device, and the bracket is provided with a drilling device and a cleaning device that slides with the drilling device; the cleaning device is fixedly connected to the bracket and is sleeved on the drilling device to reduce vibrations generated by the drilling device during drilling. The present invention can not only enhance the stability of the thin rod and reduce vibrations generated during drilling through a spiral conveyor plate, but can also promptly remove waste chips from the hole through the spiral conveyor plate to prevent the waste chips from clogging the hole and affecting drilling efficiency.

Description

Technical Field

[0001] The invention relates to a drilling device and method for coal mining, belonging to the field of coal mining equipment. Background Art

[0002] The common drilling devices currently on the market are prone to large vibrations when in use due to their excessive extension. At the same time, the waste chips generated during the drilling process are easily clogged in the hole, resulting in excessive accumulation of waste chips. Drilling has to be suspended and the waste chips have to be manually cleaned, affecting drilling efficiency. Therefore, improvements are necessary. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a drilling device and method for coal mining.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] A drilling device for coal mining includes a feeding device and a movable device, wherein the movable device includes a bracket, a drilling device and a cleaning device; the bracket is arranged at the upper end of the feeding device and can be moved back and forth by the feeding device, and the bracket is provided with a drilling device and a cleaning device that slides with the drilling device; the cleaning device is fixedly connected to the bracket, and the cleaning device is sleeved on the drilling device to reduce the vibration generated by the drilling device when drilling.

[0006] A method for using a drilling device for coal mining, the method comprising the following steps:

[0007] Step 1: Move the base plate to the side of the location where the hole is to be opened;

[0008] Step 2: Start motor II first, then start motor I according to the actual situation, so that motor I drives the drill bit to move to the hole opening position and perform the drilling operation;

[0009] Step 3: When the depth of the hole to be drilled is greater than the length of the thick rod, the spiral conveyor plate discharges the waste chips in the hole.

[0010] Compared with the existing technology, the beneficial effects of the present invention are: the present invention can not only enhance the stability of the thin rod through the spiral conveyor plate and reduce the vibration generated during drilling, but also can timely remove the waste chips in the hole through the spiral conveyor plate to avoid the waste chips clogging the hole and affecting the drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of a drilling device for coal mining according to the present invention;

[0012] Figure 2 It is a front view of a feeding device of a drilling device for coal mining according to the present invention;

[0013] Figure 3 This is a front view of a movable device of a drilling device for coal mining according to the present invention;

[0014] Figure 4 This is a front view of a support and a cleaning device for a drilling device used in coal mining according to the present invention;

[0015] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of A;

[0016] Figure 6 It is a cross-sectional view of a drilling device for coal mining according to the present invention;

[0017] Figure 7 It is a side view of a disc of a drilling device for coal mining according to the present invention;

[0018] Figure 8 This is a front view of a transmission rod of a drilling device for coal mining according to the present invention;

[0019] Figure 9 The present invention is a top view of a transmission rod of a drilling device for coal mining. DETAILED DESCRIPTION

[0020] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. 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.

[0021] Specific implementation method 1: Figure 1-9 As shown, this embodiment describes a drilling device for coal mining, including a feeding device 1 and a movable device 2, wherein the movable device 2 includes a bracket 21, a drilling device 22 and a cleaning device 23; the bracket 21 is arranged at the upper end of the feeding device 1 and can be moved back and forth through the feeding device 1, and the bracket 21 is provided with a drilling device 22 and a cleaning device 23 that slides with the drilling device 22; the cleaning device 23 is fixedly connected to the bracket 21, and the cleaning device 23 is sleeved on the drilling device 22 to reduce the vibration generated by the drilling device 22 when drilling.

[0022] Specific implementation method 2: Figure 1-9As shown, this embodiment is a further explanation of the specific embodiment one, the feeding device 1 includes a base plate 11, a motor bracket I 12, a motor I 13, two fixed plates 14 and a screw 15; two fixed plates 14 are fixedly connected to both sides of the top of the base plate 11; the screw 15 is connected between the two fixed plates 14 through a bearing; the motor I 13 is fixedly connected to the side of the base plate 11 through the motor bracket I 12, and the output shaft of the motor I 13 passes through a fixed plate 14 and is fixedly connected to the screw 15.

[0023] Specific implementation method three: Figure 1-9 As shown, this embodiment is a further explanation of the specific embodiment one, and the bracket 21 includes a vertical plate 211 and a horizontal plate 212; the top end of the side of the vertical plate 211 is fixedly connected to the horizontal plate 212, and the vertical plate 211 is provided with a threaded hole 213 that is threadedly matched with the screw 15; the horizontal plate 212 is provided with a rectangular groove 214 that vertically penetrates the horizontal plate 212, and a T-shaped slide groove 215 is provided at the bottom end of the horizontal plate 212.

[0024] Specific implementation method four: Figure 1-9 As shown, this embodiment is a further explanation of the specific embodiment one, the drilling device 22 includes a motor bracket II 221, a motor II 222, a transmission rod 2221, a thin rod 2215, a thick rod 2213, a drill bit 2212 and a spiral plate 2214; the motor II 222 is fixedly connected to the side of the vertical plate 211 through the motor bracket II 221, and the transmission rod 2221 is fixedly connected to the output shaft of the motor II 222; the other end of the transmission rod 2221 is fixedly connected to the thin rod 2215, the thin rod 2215 is fixedly connected to the thick rod 2213, the other end of the thick rod 2213 is fixedly connected to the drill bit, and the outer circumferential surface of the thick rod 2213 is fixedly connected to the spiral plate 2214; the motor II 222, the transmission rod 2221, the thin rod 2215 and the thick rod 2213 are coaxial.

[0025] Specific implementation method five: Figure 1-9 As shown, this embodiment is a further explanation of the specific embodiment one, and the cleaning device 23 includes an L-shaped connecting rod 231, a fixed block 232 and a plurality of sliders 234; the free end of the L-shaped connecting rod 231 in the horizontal direction is fixedly connected to the vertical plate 211, and the L-shaped connecting rod 231 is set as an elastic telescopic rod in the vertical direction, and its free end is fixedly connected to the fixed block 232; a plurality of slides 235 are provided on the side of the fixed block 232; each of the sliders 234 slides with the corresponding slide 235, and a spring 236 is provided between the slider 234 and the T-shaped slide 235; the fixed block 232 is sleeved on the thin rod 2215.

[0026] Specific implementation method six: Figure 1-9As shown, this embodiment is a further explanation of the specific embodiment 1, the drilling device 22 also includes a gear I 223, a gear II 224, a support rod 225, a connecting rod I 226, a gear III 227, a limit rod 228, a fixing plate 229, a rotating shaft 2210, a roller 2211, a spiral transmission plate 2216, a gear IV 2217, a connecting ring 2218, a connecting rod II 2219, a disc 2220 and a block 2222; the outer circumference of the transmission rod 2221 is provided with There are multiple V-shaped grooves 2223 connected end to end; the gear I 223 is keyed to the output shaft of the motor II 222, and the gear I 223 passes through the rectangular groove 214; the support rod 225 is fixedly connected to the top of the horizontal plate 212, and the connecting rod I 226 passes through the support rod 225, and a bearing is provided between the connecting rod I 226 and the support rod 225, and the two ends of the connecting rod I 226 are keyed to the gear II 224 and the gear III 227, and the gear II 224 is meshed with the gear I 223; the fixed plate 22 9 is fixedly connected to the lower end of the horizontal plate 212, and the side of the roller 2211 is fixedly connected to the rotating shaft 2210, which is movably connected to the side of the fixed plate 229 through a bearing, and the roller 2211 is provided with a plurality of tooth grooves that mesh with the gear III 227; the disc 2220 is sleeved on the transmission rod 2221, and the outer surface of the disc 2220 is provided with a limit rod 228 that slides with the T-shaped groove 215, and the inner surface of the disc 2220 is fixedly connected with a limit rod 228 that slides with the V-shaped groove 2223. The side of the disc 2220 is fixedly connected to the matching block 2222 with a connecting rod II 2219; the other end of the connecting rod II 2219 is fixedly connected to a connecting ring 2218; one side of the gear IV 2217 is provided with an annular groove, and the connecting ring 2218 is connected to the annular groove through a bearing, and the other side of the gear IV 2217 is fixedly connected to a spiral transmission plate 2216, which is sleeved on the thin rod 2215, and the gear IV 2217 is also engaged with the tooth groove on the roller 2211.

[0027] Specific implementation method seven: Figure 1-9 As shown, this embodiment is a further description of the specific embodiment 1, and the fixing block 232 is located in the gap of the spiral conveying plate 2216.

[0028] Specific implementation eight: Figure 1-9 As shown, this embodiment is a further explanation of the specific embodiment 1, and the maximum distance between the center line of the spiral transmission plate 2216 and the thin rod 2215 is equal to the maximum distance between the center line of the spiral plate 2214 and the thick rod 2213.

[0029] Specific implementation method nine: Figure 1-9 As shown, this embodiment describes a method for using a drilling device for coal mining, and the method includes the following steps:

[0030] Step 1: Move the bottom plate 11 to the side of the location where the hole is to be opened;

[0031] Step 2: First start the motor II 222, and then start the motor I 13 according to the actual situation, so that the motor I 13 drives the drill bit 2212 to move to the hole opening position and perform the drilling operation;

[0032] Step 3: When the depth of the hole to be drilled is greater than the length of the thick rod 2213 , the spiral conveyor plate 2216 discharges the waste chips in the hole.

[0033] The working principle of the present invention is as follows: when using the device, the bottom plate 11 is moved to the side of the location where the hole is to be opened;

[0034] Start the motor II 222, which drives the transmission rod 2221 to rotate. The transmission rod 2221 drives the thin rod 2215 and the thick rod 2213 to rotate, and then drives the drill bit 2212 to rotate. Start the motor I13, so that the motor I13 drives the screw 15 to rotate. The screw 15 drives the vertical plate 211 to move through the thread. The vertical plate 211 drives the drilling device 22 to move, and then drives the drill bit 2212 to move to the hole opening position and perform the drilling operation. When the drilling depth is less than the length of the thick rod 2213, the waste chips generated by the drilling pass through the spiral plate 221. 4 is discharged, and during the drilling process, since the limiting rod 228 is in sliding cooperation with the T-shaped chute 215 and the limiting rod 228 is T-shaped, the limiting rod 228 cannot move up and down in the T-shaped chute 215, and thus the disc 2220 cannot move up and down. Therefore, when the disc 2220 is sleeved on the transmission rod 2221, and the gear IV 2217 and the spiral transmission plate 2216 are sleeved on the thin rod 2215, the vibration generated during the drilling process due to the excessive length of the combination of the transmission rod 2221, the thin rod 2215 and the thick rod 2213 can be effectively reduced;

[0035] When the depth of the drilled hole is greater than the length of the thick rod 2213, if the waste chips are pushed out by the spiral plate 2214 alone, the efficiency is low and it is easy to cause the hole to be blocked. At this time, the rotation of the motor II 222 drives the transmission rod 2221 to rotate. A V-shaped groove 2223 is provided on the outer circumference of the transmission rod 2221. The disc 2220 slides with the V-shaped groove 2223 through the block 2222. Because the top of the disc 2220 is fixedly connected to the limiting rod 228, the disc 2220 can only move back and forth with the T-shaped slide 215. When the transmission rod 2221 rotates, the V-groove 2223 is driven to rotate. The inner wall of the V-shaped groove 2223 pushes the block 2222 to move forward and backward, thereby driving the disc 2220 to move forward and backward. The disc 2220 drives the connecting rod II 2219 to move, thereby driving the gear IV 2217 to move forward and backward. During the movement of the gear IV 2217, it never leaves the tooth groove on the rotating drum 2211. When the block 2222 moves to the rightmost end of the V-shaped groove 2223, the gear IV 2217 moves toward the direction of the thick rod 2213, driving the spiral transmission plate 2216 to move toward the direction of the thick rod 2213. The spiral transmission plate 2216 stops moving after contacting the thick rod 2213. At this time, since the motor II 222 drives the transmission rod 2221, the thin rod 2215, the thick rod 2213 and the drill bit 2212 to rotate clockwise, the gear I 223 rotates clockwise, the gear II 224 and the gear III 227 rotate counterclockwise, and the rotating drum 2211 rotates clockwise, the gear IV 2217 rotates counterclockwise, and the gear IV 2217 drives the spiral transmission plate 2216 to rotate counterclockwise. Since the rotation direction of the spiral transmission plate 2216 is opposite to that of the spiral plate 2214, the waste chips at the rear end of the thick rod 2213 are pushed out to the outer end of the outer hole. Then the motor II 222 drives the transmission rod 2221, the thin rod 2215, the thick rod 2213 and the drill bit 2212 to rotate clockwise. The movable rod 2221 continues to rotate, and drives the block 2222 to move away from the thick rod 2213 through the inner wall of the V-shaped groove 2223, thereby driving the spiral conveyor plate 2216 to rotate counterclockwise and move away from the thick rod 2213, so that the waste chips can be quickly discharged through the rotation and translation of the spiral conveyor plate 2216. In addition, the spiral conveyor plate 2221 is driven to move left and right by the V-shaped groove 2223, which can ensure the efficiency of discharging waste chips and prevent the spiral conveyor plate 2221 from contacting with the thick rod 2213 for a long time because the two rotate in opposite directions, thereby avoiding large wear caused by contact.

[0036] Since the fixed block 232 is set in the gap of the spiral conveying plate 2221, when the spiral conveying plate 2221 rotates and drives the spiral transmission plate 2221 to move through the V-shaped groove 2223, the fixed block 232 remains in a fixed position and can contact the inner wall of the spiral conveying plate 2221. When the spiral conveying plate 2221 moves outward from the hole, it drives more waste chips to move outward. After mixing with water, the waste chips may be adsorbed on the inner wall of the spiral conveying plate 2221. When it contacts the slider 234 on the side of the fixed block 232, the slider 234 scrapes the waste chips off the spiral conveying plate 2221, which can speed up the separation of the waste chips from the spiral conveying plate 2221. When the spiral conveying plate 2221 moves to the left, the elastic telescopic rod at the vertical end of the L-shaped rod 231 is pushed downward by the inner wall of the spiral conveying plate 2221 to retract, thereby avoiding affecting the movement of the spiral conveying plate 2221 to its original position.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A drilling device for coal mining, characterized by: The invention comprises a feeding device (1) and a movable device (2), wherein the movable device (2) comprises a bracket (21), a drilling device (22) and a cleaning device (23); the bracket (21) is arranged at the upper end of the feeding device (1) and can be moved forward and backward through the feeding device (1); the bracket (21) is provided with a drilling device (22) and a cleaning device (23) that is slidably matched with the drilling device (22); the cleaning device (23) is fixedly connected to the bracket (21), and the cleaning device (23) is sleeved on the drilling device (22) to reduce the vibration generated by the drilling device (22) when drilling; The feeding device (1) comprises a base plate (11), a motor bracket I (12), a motor I (13), two fixed plates (14) and a screw (15); the two fixed plates (14) are fixedly connected to both sides of the top of the base plate (11); the screw (15) is connected between the two fixed plates (14) through a bearing; the motor I (13) is fixedly connected to the side of the base plate (11) through the motor bracket I (12), and the output shaft of the motor I (13) passes through a fixed plate (14) and is fixedly connected to the screw (15); The bracket (21) includes a vertical plate (211) and a horizontal plate (212); the vertical plate (211) is fixedly connected to the horizontal plate (212) at the top end of the side surface, and the vertical plate (211) is provided with a threaded hole (213) threadedly matched with the screw rod (15); the horizontal plate (212) is provided with a rectangular groove (214) vertically penetrating the horizontal plate (212), and a T-shaped sliding groove (215) is provided at the bottom end of the horizontal plate (212); The drilling device (22) comprises a motor bracket II (221), a motor II (222), a transmission rod (2221), a thin rod (2215), a thick rod (2213), a drill bit (2212) and a spiral plate (2214); the motor II (222) is fixedly connected to the side of the vertical plate (211) through the motor bracket II (221), and the transmission rod (2221) is fixedly connected to the output shaft of the motor II (222); the other end of the transmission rod (2221) is fixedly connected to the thin rod (2215), the thin rod (2215) is fixedly connected to the thick rod (2213), the other end of the thick rod (2213) is fixedly connected to the drill bit, and the outer circumferential surface of the thick rod (2213) is fixedly connected to the spiral plate (2214); the motor II (222), the transmission rod (2221), the thin rod (2215) and the thick rod (2213) are coaxial; The drilling device (22) further comprises a gear I (223), a gear II (224), a support rod (225), a connecting rod I (226), a gear III (227), a limiting rod (228), a fixing plate (229), a rotating shaft (2210), a roller (2211), a spiral transmission plate (2216), a gear IV (2217), a connecting ring (2218), a connecting rod II (2219), a disc (2220) and a clamping block (2222); a plurality of V-shaped grooves (2223) connected end to end are provided on the outer circumference of the transmission rod (2221). ); the gear I (223) is key-connected to the output shaft of the motor II (222), and the gear I (223) passes through the rectangular slot (214); the support rod (225) is fixedly connected to the top of the horizontal plate (212), the connecting rod I (226) passes through the support rod (225), and a bearing is provided between the connecting rod I (226) and the support rod (225), and the two ends of the connecting rod I (226) are key-connected with the gear II (224) and the gear III (227), and the gear II (224) is meshed with the gear I (223); the fixed plate (229) is fixedly connected to At the lower end of the horizontal plate (212), a rotating shaft (2210) is fixedly connected to the side of the roller (2211), and the rotating shaft (2210) is movably connected to the side of the fixed plate (229) through a bearing, and the roller (2211) is provided with a plurality of tooth grooves meshing with the gear III (227); the disc (2220) is sleeved on the transmission rod (2221), and a limiting rod (228) that is slidably engaged with the T-shaped sliding groove (215) is provided on the outer circumference of the disc (2220), and a limiting rod (228) that is slidably engaged with the V-shaped groove (2223) is fixedly connected to the inner circumference of the disc (2220). The disc (2220) is fixedly connected to a connecting rod II (2219) on one side; the other end of the connecting rod II (2219) is fixedly connected to a connecting ring (2218); one side of the gear IV (2217) is provided with an annular groove, and the connecting ring (2218) is connected to the annular groove through a bearing; the other side of the gear IV (2217) is fixedly connected to a spiral transmission plate (2216), which is sleeved on the thin rod (2215); and the gear IV (2217) is also engaged with the tooth groove on the roller (2211).

2. The drilling device for coal mining according to claim 1, characterized in that: The cleaning device (23) comprises an L-shaped connecting rod (231), a fixed block (232) and a plurality of sliders (234); the free end of the L-shaped connecting rod (231) in the horizontal direction is fixedly connected to the vertical plate (211); the L-shaped connecting rod (231) is configured as an elastic telescopic rod in the vertical direction, and its free end is fixedly connected to the fixed block (232); a plurality of slideways (235) are provided on the side of the fixed block (232); each slider (234) is slidably matched with the corresponding slideway (235), and a spring (236) is provided between the slider (234) and the T-shaped slideway (235).

3. The drilling device for coal mining according to claim 2, characterized in that: The fixing block (232) is located in the gap of the spiral conveying plate (2216).

4. The drilling device for coal mining according to claim 3, characterized in that: The maximum distance between the spiral transmission plate (2216) and the center line of the thin rod (2215) is equal to the maximum distance between the center line of the spiral plate (2214) and the thick rod (2213).

5. The method for using a drilling device for coal mining according to claim 4, characterized in that: The method of use comprises the following steps: Step 1: Move the bottom plate (11) to the side of the location where the hole is to be opened; Step 2: First start the motor II (222), and then start the motor I (13) according to the actual situation, so that the motor I (13) drives the drill bit (2212) to move to the hole opening position and perform the drilling operation; Step 3: When the depth of the hole to be drilled is greater than the length of the thick rod (2213), the spiral conveyor plate (2216) discharges the waste chips in the hole.

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