A directional drilling apparatus and method for coal mining

Abstract

The application provides a directional drilling device and method for coal mining, and relates to the technical field of drilling devices.The application comprises a support, the support is provided with a feeding device, the feeding device is provided with a rotating device, the support is provided with an auxiliary device, the support is slidably connected with a sliding frame, the sliding frame is hingedly connected with a supporting disc, the support is slidably connected with a first mounting rod, the first mounting rod is fixedly connected with a mounting seat, the mounting seat is hingedly connected with a transfer disc, the support is fixedly connected with a fixing rod, the fixing rod is hingedly connected with a rod frame, and the support is fixedly connected with a first hydraulic rod.The application can neatly stack the drill rods on the rod frame, when a new drill rod needs to be installed, the drill rod on the rod frame is moved to the supporting disc through the transfer disc, and then the connection of the drill rod is completed through the feeding device and the rotating device, so that the drill rod does not need to be carried from the stacking place to the device for installation, and the time required for drilling is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling devices, in particular to a directional drilling device and method for coal mining. BACKGROUND

[0002] In the process of coal mining, the coal seam in the mining area needs to be explored and investigated in the early stage. In the exploration stage, the directional drilling device can be used for directional reaming drilling to explore the coal seam more comprehensively. Different directions of coal seam information can be obtained through directional drilling, so as to provide more accurate geological data for subsequent coal seam mining.

[0003] The existing directional drilling device is placed at the working site during use, then the drill rod and drill bit are connected, and the drill bit is aimed at the target position to be drilled. Then the drilling is carried out through the feeding device and the rotating device. When the length of the drill rod is not enough, the machine needs to be stopped and the drill rod needs to be moved from the stacking place to the drilling device for installation. After the installation is completed, the drilling can continue. This way makes the installation time of the drill rod long and the drilling efficiency low. SUMMARY

[0004] The purpose of the present application is to provide a directional drilling device and method for coal mining to overcome or partially overcome the problems raised in the background.

[0005] In order to achieve the above purpose, the technical solution adopted by the present application is as follows:

[0006] A directional drilling device for coal mining, comprising a support, the support is provided with a feeding device, the feeding device is provided with a rotating device, the support is provided with an auxiliary device, the support is slidably connected with a sliding frame, the sliding frame is hingedly connected with a supporting disc, the support is slidably connected with a first mounting rod, the first mounting rod is fixedly connected with a mounting seat, the mounting seat is hingedly connected with a transfer disc, the support is fixedly connected with a fixed rod, the fixed rod is hingedly connected with a rod frame, the rod frame is used for stacking drill rods, the transfer disc is used for transferring the drill rods on the rod frame to the supporting disc, the support is fixedly connected with a first hydraulic rod, and the extension end of the first hydraulic rod is fixedly connected with the sliding frame.

[0007] As one of the preferred technical solutions, the first mounting rod is hingedly connected with a rotating shell, the rotating shell is slidably connected with a first sliding rod, the first sliding rod is hingedly connected with the transfer disc, the support is slidably connected with a second mounting rod, the second mounting rod is fixedly connected with a fixed shell, the fixed shell is slidably connected with a second sliding rod, the fixed shell and the rotating shell are connected through a pipeline, a spring is arranged between the second sliding rod and the fixed shell, and the rotating device extrudes the second sliding rod to move.

[0008] As one of the preferred technical solutions, the carrier tray is fixedly connected with a first fixing block, and the sliding frame is fixedly connected with a second fixing block, and the second fixing block is pressed against the first fixing block.

[0009] As one of the preferred technical solutions, the first fixing block is hingedly connected with a clamping jaw, and the carrier tray is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with the clamping jaw.

[0010] As one of the preferred technical solutions, the transfer tray is fixedly connected with a shielding rod, and the shielding rod is used for shielding the drill pipes on the rod frame.

[0011] As one of the preferred technical solutions, the bracket is fixedly connected with a second hydraulic rod, an extension end of the second hydraulic rod is fixedly connected with a transmission frame, the transmission frame is limitingly and slidably connected with the rod frame, the fixed rod is rotatably connected with a rotating rod, the mounting seat and the transmission frame are limitingly and slidably connected with the rotating rod, and the extension end of the second hydraulic rod is fixedly connected with the second mounting rod to form a transmission rod.

[0012] As one of the preferred technical solutions, the mounting seat is provided with a limiting part, and the limiting part is used for limiting the transfer tray.

[0013] As one of the preferred technical solutions, a projection of the transfer tray on a horizontal plane intersects with a projection of the carrier tray on the horizontal plane.

[0014] As one of the preferred technical solutions, a longitudinal section of the transfer tray is V-shaped, and a length of the transfer tray close to the rod frame is equal to a diameter of the drill pipe.

[0015] A directional drilling method for coal mining based on the directional drilling device for coal mining is provided, and specifically includes the following steps.

[0016] S1: the drill pipe is passed through the rotary device and the auxiliary device and the drill bit is installed, and the drill pipes on the rod frame are neatly stacked, the drill pipes on the rod frame are rolled to the transfer tray, and then the feeding device drives the rotary device to reciprocate to intermittently control the drill pipe to drill holes;

[0017] S2: when the rotary device is reset, if the tail of the drill pipe is close, the feeding device drives the rotary device to move to contact the second sliding rod and then stop, the extension end of the first hydraulic rod drives the carrier tray to move upward, then the output shaft of the motor drives the clamping jaw to rotate, and then the rotary device presses the second sliding rod, and the second sliding rod drives the transfer tray to transfer the drill pipe thereon to the carrier tray;

[0018] S3: the transfer tray drives the shielding rod to rotate when rotating, and the shielding rod shields the remaining drill pipes on the rod frame;

[0019] S4: When the drill rod on the transfer plate rolls onto the support plate, the chuck clamps the drill rod. Then the rotary device disconnects from the current drill rod. Then the feed device drives the rotary device to move in the opposite direction. The second sliding rod returns to its original position under the action of the spring, and the transfer plate also returns to its original position.

[0020] S5: When the rotary device stops moving before contacting the support plate, the rotary device connects to the drill pipe on the support plate. Then the chuck opens, and the feed device drives the rotary device to move, thereby driving the new drill pipe to rotate and move, so that the old and new drill pipes are connected.

[0021] S6: At the same time as the connection of the two drill rods is completed, the telescopic end of the first hydraulic rod drives the sliding frame 5 to return to its original position, and the motor controls the gripper to return to its original position;

[0022] S7: When the drill rod is disassembled after drilling is completed, the feed device drives the rotary device to pull the drill rod to move in the opposite direction. Then the auxiliary device clamps the second to last installed drill rod. Then the support plate rises and contacts the drill rod. Before it rises, the jaws open. Then the feed device and rotary device drive the drill rod to move in the opposite direction and reverse, thereby disconnecting the first and second to last installed drill rods.

[0023] S8: The telescopic end of the second hydraulic rod drives the transmission frame to move downward. The transmission frame drives the transmission rod frame and the rotating rod to rotate. The rotating rod drives the transfer plate to move upward. Then, the telescopic end of the first hydraulic rod continues to drive the support plate to move upward until the support plate contacts the transfer plate and both rotate. The drill rod on the support plate is transferred to the transfer plate. Then, it rolls to the rod frame through the transfer plate. The action of separating two adjacent drill rods and transferring them is repeated to complete the recovery of the drill rod.

[0024] Compared with the prior art, the present invention has the following beneficial technical effects:

[0025] This invention neatly stacks drill rods on a rod holder. When a new drill rod needs to be installed, the drill rod on the rod holder is moved to the support plate via a transfer plate. Then, the connection of the drill rod is completed by the feeding device and the rotating device. This process eliminates the need to transport the drill rod from the stacking area to the device for installation, saving the time required for drilling.

[0026] The output shaft of the motor drives the gripper to rotate, thereby clamping the drill pipe and reducing the probability of movement during the installation process, ensuring the normal progress of the installation.

[0027] The tilt state of the transmission rod frame is changed by the telescopic end of the second hydraulic rod, and the transfer plate is raised. Then, by raising the support plate, the drill rod on the support plate is moved to the rod frame through the transfer plate, thereby completing the disassembly and recovery of the drill rod. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the mounting base and transfer tray of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the first fixing block and the second fixing block of the present invention;

[0031] Figure 4 This is a three-dimensional structural diagram of the second hydraulic rod and transmission frame of the present invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the rotating shell and the first sliding rod of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the second mounting rod and transmission rod of the present invention;

[0034] Figure 7 This is a three-dimensional structural diagram of the fixed shell and the second sliding rod of the present invention;

[0035] Figure 8 This is a three-dimensional structural diagram of the present invention when disassembling the drill rod.

[0036] Figure label:

[0037] 1. Bracket; 101. Fixed rod; 2. Feeding device; 3. Rotating device; 4. Auxiliary device; 5. Sliding frame; 6. Loading plate; 7. First mounting rod; 8. Mounting base; 801. Limiting part; 9. Transfer plate; 901. Blocking rod; 10. Rod frame; 11. First hydraulic rod; 12. Rotating shell; 13. First sliding rod; 14. Second mounting rod; 15. Fixed shell; 16. Second sliding rod; 17. First fixing block; 18. Second fixing block; 19. Gripper; 20. Motor; 21. Second hydraulic rod; 22. Transmission frame; 23. Rotating rod; 24. Transmission rod. Detailed Implementation

[0038] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] Example 1:

[0040] Existing drilling equipment requires a long time to install drill pipes, resulting in low drilling efficiency.

[0041] A directional drilling device for coal mining, please refer to... Figures 1-7 The system includes a support frame 1, a feed device 2, a rotary device 3, and an auxiliary device 4. The feed device 2, rotary device 3, and auxiliary device 4 are all existing devices. The feed device 2 is used to push the rotary device 3 to move left and right, and the rotary device 3 is used to drive the drill rod to rotate. The rotary device 3 can be disconnected from the drill rod. The auxiliary device 4 assists the rotary device 3 in supporting the drill rod, making the drill rod more stable, and can also clamp and fix the drill rod. A sliding frame 5 is slidably connected to the support frame 1. The sliding frame 5 consists of a plate... The system consists of two round rods. A support plate 6 is hinged to the upper side of the sliding frame 5. A first mounting rod 7 is slidably connected to the support 1. A mounting seat 8 is fixed to the upper side of the first mounting rod 7. A transfer plate 9 is hinged to the upper side of the mounting seat 8. A fixing rod 101 is fixed to the support 1. A rod frame 10 is hinged to the fixing rod 101. The rod frame 10 is used to stack drill rods. The transfer plate 9 is used to remove a drill rod from the rod frame 10 and transfer it to the support plate 6. A first hydraulic rod 11 is fixed to the support 1. The first hydraulic rod 11 passes through the support 1, and its telescopic end is fixed to the sliding frame 5. The longitudinal section of the transfer plate 9 is V-shaped. The length of the transfer plate 9 near the rod frame 10 is equal to the diameter of the drill rod, thus ensuring that only one drill rod is on the transfer plate 9 at a time.

[0042] Please refer to Figures 4-6 The first mounting rod 7 is hinged to a rotating shell 12, and the rotating shell 12 is slidably connected to a first sliding rod 13. The first sliding rod 13 is hinged to a transfer plate 9 and is used to push the transfer plate 9 to rotate, thereby causing the transfer plate 9 to unload the drill rod on it onto the support plate 6. The bracket 1 is slidably connected to a second mounting rod 14, and the second mounting rod 14 is fixedly connected to a fixed shell 15. The fixed shell 15 is slidably connected to a second sliding rod 16. The fixed shell 15 and the rotating shell 12 are connected by a pipe. The fixed shell 15, the rotating shell 12, and the pipe between them all contain a fluid for transmission, such as hydraulic oil. A spring is provided between the second sliding rod 16 and the fixed shell 15. The rotary device 3 squeezes the second sliding rod 16 to make it move.

[0043] Please refer to Figure 3 A first fixing block 17 is fixedly connected to the rear part of the lower side of the support plate 6, and a second fixing block 18 is fixedly connected to the sliding frame 5. The second fixing block 18 and the first fixing block 17 are pressed against each other. The mutual pressing of the second fixing block 18 and the first fixing block 17 limits the position, so that the bottom of the support plate 6 is horizontal, thereby supporting the drill rod.

[0044] Please refer to Figure 3 The first fixing block 17 is hinged with a cleaver 19, which is used to fix the drill rod so that the drill rod will not roll freely on the support plate 6. The support plate 6 is fixedly connected to a motor 20, and the output shaft of the motor 20 is fixedly connected to the cleaver 19.

[0045] Please refer to Figure 4 and Figure 5 The transfer plate 9 is fixedly connected to a blocking rod 901, which is used to block the drill rod on the rod holder 10. When the transfer plate 9 unloads the drill rod on it onto the support plate 6, the blocking rod 901 will block the drill rod on the rod holder 10, so that the drill rod will not roll to the underside of the transfer plate 9.

[0046] When using this device for drilling, first set it up at the work site, aligning the right side of the auxiliary device 4 with the drilling position. Then, pass the drill rod through the rotary device 3 and the auxiliary device 4 and install the drill bit. Simultaneously, neatly stack the drill rods on the rod holder 10. The drill rods on the rod holder 10 roll towards the transfer plate 9. Since the width of the front part of the transfer plate 9 is equal to the diameter of the drill rod, there will only be one drill rod on the transfer plate 9 at most. Then, the feed device 2 and the rotary device 3 are activated, pushing the drill rod to drill. After the feed device 2 drives the rotary device 3 to move to the right a certain distance (the distance of a single drilling operation can be adjusted according to the user's specific needs), the rotary device 3 disconnects from the drill rod. Then, the feed device 2 drives the rotary device 3 to move to the left. After that, the rotary device 3 reconnects with the drill rod, and the feed device 2 drives the rotary device 3 to move to the right again. The above process is repeated to advance the drill bit.

[0047] When the rotary device 3 retracts to its left side and aligns with the left side of the drill pipe, the feed device 2 moves the rotary device 3 to the right until it contacts the second sliding rod 16. At this point, the rotary device 3 stops moving. Then, the first hydraulic rod 11 starts, and its telescopic end moves the sliding frame 5 upward. The sliding frame 5 moves the support plate 6. When the upper side of the bottom of the support plate 6 is at the same level as the lower side of the drill pipe on the rotary device 3, the support plate 6 stops moving. Then, the motor 20 starts, and its output shaft drives the jaw 19 to rotate. After that, the feed... The device 2 continues to push the rotary device 3 to move, the rotary device 3 squeezes the second sliding rod 16, the second sliding rod 16 moves to the right, and pushes the liquid in the fixed shell 15 into the rotating shell 12 through the pipe. The liquid in the rotating shell 12 increases and pushes the first sliding rod 13 to move. The first sliding rod 13 drives the transfer plate 9 to rotate, thereby transferring the drill rod on the transfer plate 9 to the support plate 6. When the transfer plate 9 rotates, it drives the blocking rod 901 to rotate. The blocking rod 901 blocks the remaining drill rod on the rod holder 10, thereby preventing the drill rod on the rod holder 10 from rolling to the underside of the transfer plate 9.

[0048] When the drill rod on the transfer plate 9 rolls onto the support plate 6, the motor 20 starts, and the output shaft of the motor 20 drives the chuck 19 to rotate, so that the chuck 19 clamps the drill rod. Then the rotary device 3 disconnects from the current drill rod, and then the feed device 2 drives the rotary device 3 to move to the left. The newly moved drill rod on the support plate 6 passes through the rotary device 3. During the movement of the rotary device 3, the second sliding rod 16 moves synchronously under the action of the spring until it returns to its original position. At the same time as the second sliding rod 16 moves, the transfer plate 9 is driven to return to its original position. Then the drill rod located at the bottom of the rod holder 10 moves onto the transfer plate 9.

[0049] When the rotary device 3 stops moving before contacting the support plate 6, the rotary device 3 connects with the drill rod on the support plate 6. Then, the output shaft of the motor 20 drives the chuck 19 to open, and the feed device 2 drives the rotary device 3 to move, thereby driving the new drill rod to rotate and move, connecting the old and new drill rods. At this time, the rotary device 3 drives the new drill rod to rotate, and at the same time, the feed device 2 continues to drive the rotary device 3 to move to the right, so that the two drill rods are connected by threads. After the drill rods are connected, drilling can continue. At the same time as the two drill rods are connected, the telescopic end of the first hydraulic rod 11 drives the sliding frame 5 to return to its original position. During the movement, the output shaft of the motor 20 drives the chuck 19 to return to its original position, thereby avoiding the chuck 19 from blocking the movement of the rotary device 3, so that the rotary device 3 can move a longer distance at a time, improving drilling efficiency. At this point, the automatic connection of the drill rods is completed.

[0050] Example 2:

[0051] Existing drilling equipment cannot automatically disassemble and stack drill rods, resulting in long drilling times.

[0052] Based on Example 1, please refer to Figure 2 , Figure 4 and Figure 8 The bracket 1 is fixedly connected to a second hydraulic rod 21. The telescopic end of the second hydraulic rod 21 is fixedly connected to a transmission frame 22. By moving the transmission frame 22 downward, the rod frame 10 can be changed from a front-high-rear-low state to a front-low-rear-high state. The transmission frame 22 is slidably connected to the rod frame 10. The fixed rod 101 is rotatably connected to a rotating rod 23. The mounting seat 8 and the transmission frame 22 are both slidably connected to the rotating rod 23. When the transmission frame 22 moves downward, the mounting seat 8 can be raised through the rotating rod 23, thereby increasing the height of the transfer plate 9, so that the drill rod on the transfer plate 9 can roll onto the rod frame 10, thereby completing the retrieval of the drill rod. The telescopic end of the second hydraulic rod 21 and the second mounting rod 14 are jointly fixedly connected to a transmission rod 24. When the telescopic end of the second hydraulic rod 21 moves downward, the transmission rod 24 can drive the second mounting rod 14 to move downward, so that when the rotary device 3 moves to the right, it will not contact the second sliding rod 16, thereby providing more moving distance for the rotary device 3 to unload the drill rod more quickly.

[0053] Please refer to Figure 4 The mounting base 8 is provided with a limiting part 801, which is used to limit the transfer plate 9 so that the front side of the transfer plate 9 will not rotate to the lower side of the rear of the rod holder 10 during the process of disassembling the drill rod, so as to facilitate the transfer of the drill rod.

[0054] Please refer to Figure 8 The projection of the transfer disk 9 on the horizontal plane intersects with the projection of the support disk 6 on the horizontal plane. The transfer disk 9 squeezes the support disk 6 to make it rotate, thereby transferring the drill rod on the support disk 6 to the transfer disk 9. The support disk 6 is lifted by the telescopic end of the first hydraulic rod 11, thereby unloading the drill rod on the support disk 6.

[0055] After drilling is completed, when disassembling the drill rod, the feed device 2 drives the rotary device 3 to move the drill rod to the left. Before it reaches its limit position, the auxiliary device 4 clamps the second-to-last installed drill rod. Then, the telescopic end of the first hydraulic rod 11 drives the support plate 6 to rise and contact the drill rod. Before it rises, the output shaft of the motor 20 drives the chuck 19 to open. After that, the rotary device 3 drives the drill rod to reverse, and the feed device 2 drives the rotary device 3 to continue moving to the left, thereby disconnecting the first and second drill rods. Then, the telescopic end of the second hydraulic rod 21 drives the transmission frame 22 to move downward, and the transmission frame 22 drives the rod holder 10 to rotate. The drill rod rolls towards the front of the rod holder 10. As the transmission frame 22 moves downward, it drives the rotating rod 23 to rotate. The rotating rod 23 drives the mounting seat 8 to move upward. The mounting seat 8 drives the transfer plate 9 to move upward. Then, the telescopic end of the first hydraulic rod 11 continues to drive the support plate 6 to move upward until the support plate 6 contacts the transfer plate 9. At this time, the transfer plate 9 rotates due to the compression until it contacts the limiting part 801. Then, the support plate 6 rotates due to the obstruction of the transfer plate 9, transferring the drill rod on it to the transfer plate 9. Then, it rolls to the rod holder 10 through the transfer plate 9, thus completing the recovery of the drill rod.

[0056] Example 3:

[0057] A directional drilling method for coal mining, please refer to... Figures 1-8 The directional drilling device for coal mining described above specifically includes the following steps:

[0058] S1: Pass the drill rod through the rotary device 3 and the auxiliary device 4 and install the drill bit. At the same time, neatly stack the drill rods on the rod holder 10. The drill rods on the rod holder 10 roll onto the transfer plate 9. Then the feed device 2 drives the rotary device 3 to move back and forth to intermittently control the drill rods to drill holes.

[0059] S2: When the rotary device 3 is reset, if it is close to the tail of the drill rod, the feed device 2 drives the rotary device 3 to move until it contacts the second sliding rod 16 and then stops. The telescopic end of the first hydraulic rod 11 drives the support plate 6 to move upward. Then the output shaft of the motor 20 drives the jaw 19 to rotate. After that, the rotary device 3 squeezes the second sliding rod 16, and the second sliding rod 16 drives the transfer plate 9 to transfer the drill rod on it to the support plate 6.

[0060] S3: When the transfer plate 9 rotates, it drives the blocking rod 901 to rotate, and the blocking rod 901 blocks the remaining drill rod on the rod holder 10;

[0061] S4: When the drill rod on the transfer plate 9 rolls onto the support plate 6, the chuck 19 clamps the drill rod. Then the rotary device 3 disconnects from the current drill rod. Then the feed device 2 drives the rotary device 3 to move in the opposite direction. The second sliding rod 16 returns to its original position under the action of the spring, and the transfer plate 9 also returns to its original position.

[0062] S5: When the rotary device 3 stops moving before contacting the support plate 6, the rotary device 3 connects to the drill rod on the support plate 6, then the chuck 19 opens, and then the feed device 2 drives the rotary device 3 to move, thereby driving the new drill rod to rotate and move, so that the new and old drill rods are connected.

[0063] S6: At the same time as the connection of the two drill rods is completed, the telescopic end of the first hydraulic rod 11 drives the sliding frame 5 to return to its original position, and the motor 20 controls the gripper 19 to return to its original position;

[0064] S7: When the drill rod is disassembled after drilling is completed, the feed device 2 drives the rotary device 3 to pull the drill rod to move in the opposite direction. Then the auxiliary device 4 clamps the second to last installed drill rod. Then the support plate 6 rises to contact the drill rod. Before it rises, the jaw 19 opens. Then the feed device 2 and the rotary device 3 drive the drill rod to move in the opposite direction and reverse, thereby disconnecting the first and second to last installed drill rods.

[0065] S8: The telescopic end of the second hydraulic rod 21 drives the transmission frame 22 to move downward. The transmission frame 22 drives the transmission rod frame 10 and the rotating rod 23 to rotate. The rotating rod 23 drives the transfer plate 9 to move upward. Then, the telescopic end of the first hydraulic rod 11 continues to drive the support plate 6 to move upward until the support plate 6 contacts the transfer plate 9 and both rotate. The drill rod on the support plate 6 is transferred to the transfer plate 9. Then, it rolls to the rod frame 10 through the transfer plate 9. The action of separating two adjacent drill rods and transferring is repeated to complete the recovery of the drill rod.

[0066] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A directional drilling device for coal mining, characterized in that, The device includes a support frame, a feeding device, a rotating device, an auxiliary device, a sliding frame slidably connected to the support frame, a carrier plate hinged to the sliding frame, a first mounting rod slidably connected to the support frame, a mounting base fixed to the first mounting rod, a transfer plate hinged to the mounting base, a fixing rod fixed to the support frame, a rod frame hinged to the fixing rod, the rod frame for stacking drill rods, the transfer plate for transferring drill rods from the rod frame to the carrier plate, and a first hydraulic rod fixed to the support frame, the telescopic end of the first hydraulic rod being fixed to the sliding frame. The first mounting rod is hinged to a rotating shell, the rotating shell is slidably connected to a first sliding rod, the first sliding rod is hinged to the transfer plate, the bracket is slidably connected to a second mounting rod, the second mounting rod is fixedly connected to a fixed shell, the fixed shell is slidably connected to a second sliding rod, the fixed shell and the rotating shell are connected by a pipe, a spring is provided between the second sliding rod and the fixed shell, and the rotary device presses the second sliding rod to make it move; The projection of the transfer tray onto the horizontal plane intersects with the projection of the support tray onto the horizontal plane; The longitudinal section of the transfer disc is V-shaped, and the length of the transfer disc on the side near the rod frame is equal to the diameter of the drill rod.

2. The directional drilling device for coal mining according to claim 1, characterized in that, The support plate is fixedly connected to a first fixing block, and the sliding frame is fixedly connected to a second fixing block, with the second fixing block and the first fixing block pressing against each other.

3. A directional drilling device for coal mining according to claim 2, characterized in that, The first fixing block is hinged with a gripper, the support plate is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to the gripper.

4. A directional drilling device for coal mining according to claim 3, characterized in that, The transfer plate is fixedly connected to a blocking rod, which is used to block the drill rod on the rod holder.

5. A directional drilling device for coal mining according to claim 4, characterized in that, The bracket is fixedly connected to a second hydraulic rod, and the telescopic end of the second hydraulic rod is fixedly connected to a transmission frame. The transmission frame is slidably connected to the rod frame. The fixed rod is rotatably connected to a rotating rod. The mounting base and the transmission frame are both slidably connected to the rotating rod. The telescopic end of the second hydraulic rod and the second mounting rod are both fixedly connected to a transmission rod.

6. A directional drilling device for coal mining according to claim 5, characterized in that, The mounting base is provided with a limiting part, which is used to limit the movement of the transfer tray.

7. A directional drilling method for coal mining, characterized in that, The directional drilling device for coal mining according to claim 6 specifically includes the following steps: S1: Pass the drill rod through the rotary device and auxiliary device and install the drill bit. At the same time, neatly stack the drill rods on the rod holder. The drill rods on the rod holder roll onto the transfer plate. Then the feed device drives the rotary device to move back and forth to intermittently control the drill rods to drill holes. S2: When the rotary device is reset, if it is close to the tail of the drill rod, the feed device drives the rotary device to move until it contacts the second sliding rod and then stops. The telescopic end of the first hydraulic rod drives the support plate to move upward. Then the output shaft of the motor drives the chuck to rotate. After that, the rotary device squeezes the second sliding rod, and the second sliding rod drives the transfer plate to transfer the drill rod on it to the support plate. S3: When the transfer plate rotates, it drives the blocking rod to rotate, and the blocking rod blocks the remaining drill rod on the rod holder; S4: When the drill rod on the transfer plate rolls onto the support plate, the chuck clamps the drill rod. Then the rotary device disconnects from the current drill rod. Then the feed device drives the rotary device to move in the opposite direction. The second sliding rod returns to its original position under the action of the spring, and the transfer plate also returns to its original position. S5: When the rotary device stops moving before contacting the support plate, the rotary device connects to the drill pipe on the support plate. Then the chuck opens, and the feed device drives the rotary device to move, thereby driving the new drill pipe to rotate and move, so that the old and new drill pipes are connected. S6: As the connection of the two drill rods is completed, the sliding frame of the telescopic end of the first hydraulic rod returns to its original position, and the motor controls the gripper to return to its original position; S7: When the drill rod is disassembled after drilling is completed, the feed device drives the rotary device to pull the drill rod to move in the opposite direction. Then the auxiliary device clamps the second to last installed drill rod. Then the support plate rises and contacts the drill rod. Before it rises, the jaws open. Then the feed device and rotary device drive the drill rod to move in the opposite direction and reverse, thereby disconnecting the first and second to last installed drill rods. S8: The telescopic end of the second hydraulic rod drives the transmission frame to move downward. The transmission frame drives the transmission rod frame and the rotating rod to rotate. The rotating rod drives the transfer plate to move upward. Then, the telescopic end of the first hydraulic rod continues to drive the support plate to move upward until the support plate contacts the transfer plate and both rotate. The drill rod on the support plate is transferred to the transfer plate. Then, it rolls to the rod frame through the transfer plate. The action of separating two adjacent drill rods and transferring them is repeated to complete the recovery of the drill rod.

Images