Deep hole drill carriage suitable for complex coal seam geology and used for coal mine

Abstract

The invention relates to the field of coal mine drilling, and discloses a coal mine deep hole drill carriage adapting to complex coal seam geology. A screw rod structure matched with the in-line bearing table, a working slotting structure of the limiting barrel frame, a spiral arc groove of the traction rotating wheel and a trapezoidal guide groove of the traction plate are used for generating rotation and drilling displacement of the drill rod structure; the module supply mechanism is located on the extension bearing mechanism. By the adoption of the magazine type module supply mechanism, drill rods can be loaded in batches in advance, rapid replacement and continuous supply are achieved, the center switching mechanism automatically rotates new drill rods to the working position in the rising process of the butt joint press-in mechanism, manual intervention and shutdown material replacement time are greatly shortened, the continuous efficiency of drilling operation is improved, and the production efficiency is improved. The butt joint press-in mechanism achieves one-way clamping with a rack structure (a butt joint caulking groove) at the tail end of the drill rod through a multi-tooth rotating frame, the butt joint press-in mechanism is meshed to transmit torque during forward rotation, and the butt joint press-in mechanism is automatically disengaged during reverse rotation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine drilling, in particular to a deep hole drilling rig for coal mines suitable for complex coal seam geology. BACKGROUND

[0002] The drilling rig is an engineering vehicle used for drilling strata and obtaining geological data. The drilling rig is widely used in the fields of geological exploration, mineral resource development, building foundation construction, etc., and plays an important role in obtaining underground information, understanding geological structure, evaluating resource reserves and guiding engineering construction. The drilling rig for coal mining is widely used in the drilling operation in the process of coal mining.

[0003] The traditional drilling machine adopts manual carrying and manual butt joint of drill pipes. After each drill pipe is drilled, the machine needs to be stopped, the heavy drill pipe is lifted by the worker, and the threaded connection is manually tightened on the high-pressure drill pipe that shakes. This not only has a great labor intensity and low efficiency, but also the hands of the worker are easily injured. In the complex environment of the well, the deeper the drilling, the more the number of repeated rod changes, the higher the proportion of invalid working hours, and the worker's fatigue also increases sharply. The traditional drill pipe adopts threaded connection. When drilling deep holes and the geology is complex (such as encountering mudstone and gas), the drill pipe is easy to twist and deform, and the threaded connection is easy to "bite" (be stuck). When disassembling, a heavy hammer needs to be used to knock violently, and even the drill pipe may be scrapped, making it extremely difficult to recover. After the drilling is completed, the drill pipe also needs to be manually disassembled, carried and arranged one by one. The whole process is still high in intensity and low in efficiency, and the disassembled drill pipe is stacked in disorder, which is not convenient for counting and management. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a deep hole drilling rig for coal mines suitable for complex coal seam geology, which solves the problems of high labor intensity, low efficiency, high safety hazards, easy rod sticking and difficult recovery of the traditional coal mine drilling machine which relies on manual carrying and threaded connection of drill pipes.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a deep hole drilling rig for coal mines suitable for complex coal seam geology, comprising a working frame for fixing the structure of the deep hole drilling rig for coal mines; The front extension frame is located on the working frame and is used for fixing the alignment structure of the drilling rig drill pipe structure drilling position; The side displacement wheel group is located on the working frame and is used for forming the movement displacement structure of the drilling rig; The extension bearing mechanism is located on the working frame and can drive the vertical unfolding and folding displacement of the drilling and the drill pipe structure; The center switching mechanism is located on the extension bearing mechanism and cooperates with the relative conveying pipeline of the center shaft and the limiting cylinder for continuous conveying of the drill pipe structure; The docking and pressing mechanism is located on the extension bearing mechanism, cooperates with the screw structure of the in-line bearing table, the working slot structure of the limiting cylinder frame, the spiral arc slot of the traction rotating wheel and the trapezoidal guide slot of the traction plate to generate the rotation of the drill pipe structure and the drilling displacement; The module supply mechanism is located on the extension bearing mechanism, cooperates with the embedded docking frame to store and output the drill pipe structure in batches, and can also be modularly replaced; The docking and drilling mechanism is an independent structure, mainly the drill pipe structure of the drilling rig, cooperates with the multi-tooth rotating frame, can be loaded into the module supply mechanism in batches, and can be docked with each other to increase the drilling distance.

[0006] Preferably, the front extension frame is fixed to the side wall of the operation frame and is provided with a guide sleeve, the side displacement wheel groups are oppositely arranged on both sides of the operation frame, the extension bearing mechanism is rotationally arranged on the side of the operation frame close to the front extension frame, the center switching mechanism is embedded in the extension bearing mechanism, the docking and pressing mechanism is linearly displaced along the extension bearing mechanism and embedded into the extension bearing mechanism, the module supply mechanism can be spliced and embedded on the extension bearing mechanism, and the docking and drilling mechanism can be arranged in the module supply mechanism and enter the extension bearing mechanism.

[0007] Preferably, the extension bearing mechanism comprises an in-line bearing table, a support connecting rod and an intermittent traction assembly, the in-line bearing table is pulled by a hydraulic output between the in-line bearing table and the operation frame, the bottom of the in-line bearing table is provided with an in-line sliding groove, one side of the in-line bearing table is fixed with a crankshaft rotating arm and rotates on the side of the operation frame close to the front extension frame, one end of the support connecting rod rotates on the operation frame and the other end is embedded and slides in the in-line sliding groove of the in-line bearing table, the center shaft rotates inside the in-line bearing table, the limiting cylinder frame is embedded and fixed in the in-line bearing table and coaxial with the center shaft, the relative conveying pipelines are distributed on both sides of the limiting cylinder frame, and the working slots are arranged on the front side of the limiting cylinder frame, the embedded docking frame is fixed on one side of the in-line bearing table and is docked with one side of the relative conveying pipelines of the limiting cylinder frame, and the intermittent traction assembly is arranged on the side of the in-line bearing table away from the front extension frame.

[0008] Preferably, the center switching mechanism comprises a multi-work groove rotating wheel, the multi-work groove rotating wheel is fixed on the center shaft and embedded in the limiting cylinder frame, the multi-work groove rotating wheel is provided with embedded guide grooves corresponding to the number of spiral arc slots of the traction rotating wheel, the embedded guide grooves of the multi-work groove rotating wheel are embedded with push-out strips, and the push-out strips and the inner wall of the multi-work groove rotating wheel are provided with a snap spring structure, and the top end of the push-out strip is a push block structure.

[0009] Preferably, the docking and pressing mechanism comprises a side sliding table which slides on the side wall of the in-line bearing table, is sleeved on the screw rod of the in-line bearing table through the nut sleeve structure, and is fixed with a rotary driving element on the inner wall of the side sliding table.

[0010] Preferably, the module supply mechanism comprises an in-line material placing box which is movably inserted into the embedded docking frame, and the inner part of the in-line material placing box is embedded and slid with an embedded arc plate and is pulled back by the snap spring structure.

[0011] Preferably, the docking and drilling mechanism comprises a drill shaft which is embedded into the embedded arc plate, and the drill shaft is fixed with a multi-tooth drill bit at one end, the multi-tooth drill bit is composed of circumferentially distributed rack structures, and the distal end is provided with an extended blade structure, and the other end of the drill shaft away from the multi-tooth drill bit is provided with a docking embedding groove which is composed of circumferentially distributed embedding holes and a bottom extension hole.

[0012] Preferably, the intermittent traction assembly comprises a traction runner and a traction plate, the traction runner is fixed on the outer side end of the central rotating shaft, and the spiral arc groove is circumferentially distributed on the central rotating shaft, the traction plate is fixed on the side wall of the in-line bearing table, and adjacent traction runners are provided with a trapezoidal guide groove in the inner side wall of the traction plate.

[0013] Preferably, the in-line bearing table is fixed with an output guide frame on the side away from the embedded docking frame, and is docked with the opposite conveying pipeline of the limiting cylinder frame.

[0014] Preferably, the inner wall of the side sliding table is fixed with a limiting arc piece which is attached to the inner wall of the working slot of the limiting cylinder frame.

[0015] The present application provides a deep hole drilling vehicle for coal mines which is suitable for complex coal seam geology. 1. The present application has high-efficiency automatic operation and continuous drilling capability: the "magazine type" module supply mechanism can pre-load a batch of drill pipes, realizing rapid replacement and continuous supply. The center switching mechanism automatically rotates the new drill pipe to the working position during the lifting process of the docking and pressing mechanism, greatly reducing manual intervention and downtime for replacing materials, improving the continuity and efficiency of drilling operations. The docking and pressing mechanism realizes one-way clamping through the multi-tooth rotating frame and the rack structure (docking slot) at the tail end of the drill pipe. When rotating forward, the engagement transmits torque, and when rotating backward, it automatically disengages. This not only ensures effective power transmission, but also simplifies the tripping process.

[0016] 2. The present application has deep hole drilling stability and precision control: the extended bearing mechanism can be smoothly expanded and locked in the vertical state through hydraulic drive, crank arm and support link cooperation, ensuring accurate drilling direction. The guide sleeve on the front extension frame further assists in the initial position alignment of the drill pipe, reducing the risk of hole deviation. The limit arc piece is attached to the inner wall of the limit cylinder, preventing the drill pipe from deviating radially during drilling. The screw structure drives the linear displacement of the docking and pressing mechanism, ensuring the uniformity and stability of the thrust force, suitable for complex coal seam geological conditions.

[0017] 3. The present application has intelligent material replacement and recycling mechanism: the mechanical logic control system composed of driving traction rod, trapezoidal guide groove and spiral arc groove realizes material replacement only when the docking and pressing mechanism rises, and keeps the center switching mechanism stationary when it descends. This design avoids misoperation during drilling, ensuring the reliability and safety of the operation process. During recycling, the docking and pressing mechanism gradually lifts the drill pipe group, and the center switching mechanism rotates once for every distance of ascent, pushing the uppermost drill pipe to the output position. The process realizes the sequential recycling of drill pipes, avoiding the confusion and collision in traditional drill pipe recycling, improving the recycling efficiency and drill pipe life.

[0018] 4. The present application is suitable for complex coal seam geological conditions: through drill pipe splicing (multi-tooth drill bit embedded in the docking slot of the lower drill pipe), it can realize step-by-step lengthening of the drill pipe to meet the needs of deep hole drilling. All spliced drill pipes transmit torque through the rack structure, avoiding the problems of torque decay and tripping in traditional threaded connections during deep hole drilling, improving drilling depth and success rate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the main structure of the present application in the folded state Figure 1 ; Figure 2 is a three-dimensional schematic diagram of the main structure of the present application in the folded state Figure 2 ; Figure 3 is a three-dimensional schematic diagram of the main structure of the present application in the unfolded state Figure 4 The extended bearing mechanism of the present application is shown in the expanded state; Figure 5 The extended bearing mechanism of the present application is shown in the expanded state; Figure 6 The straight-line bearing table of the present application is shown in the structure combination; Figure 7 The intermittent traction assembly of the present application is shown in the structure; Figure 8 The center switching mechanism of the present application is shown in the structure; Figure 9 The docking and pressing mechanism of the present application is shown in the structure Figure 1 ; Figure 10 The docking and pressing mechanism of the present application is shown in the structure Figure 2 ; Figure 11 The docking and pressing mechanism of the present application is shown in the structure combination with the center switching mechanism; Figure 12 The module supply mechanism of the present application is shown in the structure combination with the docking and drilling mechanism; Figure 13 The module supply mechanism of the present application is shown in the internal structure cutaway; Figure 14 The docking and drilling mechanism of the present application is shown in the structure Figure 1 ; Figure 15 The docking and drilling mechanism of the present application is shown in the structure Figure 2 .

[0020] Wherein, 1, work rack; 2, front extension frame; 3, side displacement wheel group; 4, extended bearing mechanism; 5, center switching mechanism; 6, docking and pressing mechanism; 7, module supply mechanism; 8, docking and drilling mechanism; 41, straight-line bearing table; 42, crankshaft rotating arm; 43, support connecting rod; 44, center rotating shaft; 45, limiting cylinder frame; 46, embedded docking frame; 47, output guide frame; 48, traction rotating wheel; 49, traction plate; 51, multi-work groove rotating wheel; 52, push-out strip; 61, side sliding table; 62, rotating drive element; 63, limiting arc piece; 64, multi-tooth rotating frame; 65, drive traction rod; 71, straight-line placement box; 72, built-in arc plate; 81, drill shaft; 82, multi-tooth drill bit; 83, docking embedded groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings 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 the other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the protection scope of the present application.

[0022] Please refer to the accompanying drawings of the present application Figure 1 - the accompanying drawings Figure 3The embodiment of the present application provides a deep hole drilling rig for coal mine which is suitable for complex coal seam geology, comprising a working frame 1 for fixing the structure of the deep hole drilling rig for coal mine; a front extension frame 2 is arranged on the working frame 1 and used for fixing the calibration structure of the drilling position of the drilling rig rod structure; a side displacement wheel group 3 is arranged on the working frame 1 and used for forming the moving displacement structure of the drilling rig; the front extension frame 2 is fixed to the side wall of the working frame 1 and is provided with a guide sleeve; the side displacement wheel group 3 is oppositely arranged on the two sides of the working frame 1; an extension bearing mechanism 4 is rotationally arranged on one side of the working frame 1 close to the front extension frame 2; a center switching mechanism 5 is embedded in the extension bearing mechanism 4; an abutting pressure mechanism 6 linearly displaces along the extension bearing mechanism 4 and is embedded in the extension bearing mechanism 4; a module supply mechanism 7 can be spliced and embedded on the extension bearing mechanism 4; an abutting drilling mechanism 8 can be batch-set in the module supply mechanism 7 and can enter the extension bearing mechanism 4, the drilling rig is mainly used for deep hole drilling operation of complex coal seam of coal mine, the overall equipment takes the working frame 1 as the main fixed carrier, and the structure mainly responsible for drilling is installed on the extension bearing mechanism 4, when drilling is not needed, the extension bearing mechanism 4 is statically arranged on the working frame 1 in a relatively parallel state, and the side displacement wheel group 3 installed on the two sides of the working frame 1 is used for displacement transfer, when drilling is needed, the extension bearing mechanism 4 rotates along the working frame 1 and forms the vertical state required by drilling, the abutting drilling mechanism 8 required by the drilling rig can be pre-quantitatively transferred to the module supply mechanism 7, the module supply mechanism 7 can be abutted and installed on the input structure of the extension bearing mechanism 4, the extension bearing mechanism 4 itself comprises a material conveying structure formed in a circumferential distribution mode and abutted with the module supply mechanism 7, the abutting pressure mechanism 6 for driving the abutting drilling mechanism 8 to advance and rotate can be driven by the screw structure linear displacement of the extension bearing mechanism 4, descends or ascends along the main body structure of the extension bearing mechanism 4, when descending, the abutting drilling mechanism 8 in the specified area of the material conveying structure is abutted, the abutting drilling mechanism 8 is driven to rotate and is pushed down, so that the abutting drilling mechanism 8 drills into the coal seam, then the abutting pressure mechanism 6 is abutted with the abutting drilling mechanism 8 which completes drilling, the abutting pressure mechanism 6 is driven to ascend, until the abutting pressure mechanism 6 reaches the ascending end, the material conveying structure center switching mechanism 5 installed on the extension bearing mechanism 4 is driven to operate, the module supply mechanism 7 is sequentially pushed into the new abutting drilling mechanism 8 into the material conveying structure center switching mechanism 5, then the material conveying structure center switching mechanism 5 is rotationally guided to the working area, the abutting pressure mechanism 6 repeatedly performs the pushing and drilling driving operation, and the two groups of abutting drilling mechanisms 8 can be spliced in a head-to-tail mode, the drill bit part of the upper abutting drilling mechanism 8 is embedded into the tail end of the lower abutting drilling mechanism 8, so that the splicing is completed, and the rotary driving end of the abutting pressure mechanism 6 is similar to the drill bit structure of the abutting drilling mechanism 8, so that the abutting pressure mechanism 6 can always be abutted with the uppermost abutting drilling mechanism 8, when the uppermost abutting drilling mechanism 8 is driven to rotate,All the spliced butt joint drilling mechanisms 8 are rotated and lowered for deep drilling. When the butt joint pressing mechanism 6 drives the butt joint drilling mechanism 8 to rotate in the drilling direction, the driving end of the butt joint pressing mechanism 6 is always connected with the butt joint drilling mechanism 8, and when the butt joint pressing mechanism 6 drives in the opposite direction, the driving end of the butt joint pressing mechanism 6 is disconnected with the tail end of the butt joint drilling mechanism 8, so that one-way driving interference can be realized, and the reverse direction is synchronized to be disconnected. When the drilling rods need to be recovered, the butt joint pressing mechanism 6 can lift all the spliced butt joint drilling mechanisms 8, and then drive them to be disconnected in the reverse direction. When the butt joint pressing mechanism 6 rises, the material conveying structure center switching mechanism 5 can drive the butt joint drilling mechanism 8 always located at the uppermost part to be conveyed to the output direction of the extension bearing mechanism 4. The tapered push plate added to the output direction of the extension bearing mechanism 4 can drive the center switching mechanism 5 to automatically push the butt joint drilling mechanism 8 out of the extension bearing mechanism 4 for recovery. When the butt joint pressing mechanism 6 lifts the butt joint drilling mechanisms 8 one by one, the center switching mechanism 5 can rotate the material conveying structure in sequence, so that the butt joint drilling mechanisms 8 that need to be recovered can be disconnected one by one. The drill rig is mainly used for deep hole drilling in complex coal seams in coal mines. The overall equipment uses the working frame 1 as the main fixed carrier, and the structure mainly responsible for drilling is added to the extension bearing mechanism 4. When drilling is not needed, the extension bearing mechanism 4 is placed in a relatively parallel state on the working frame 1, and the side displacement wheel groups 3 added to both sides of the working frame 1 are used for displacement and transfer. When drilling is needed, the extension bearing mechanism 4 rotates along the working frame 1 and forms a vertical state required for drilling. The butt joint drilling mechanisms 8 required by the drill rig can be pre-quantitatively transferred to the module supply mechanism 7, and the module supply mechanism 7 can be connected and installed on the input structure of the extension bearing mechanism 4. The extension bearing mechanism 4 itself includes a material conveying structure formed in a circumferential distribution form and connected with the module supply mechanism 7. The butt joint pressing mechanism 6 for driving the butt joint drilling mechanism 8 to advance and rotate can be driven by the screw structure included in the extension bearing mechanism 4 to linearly displace and descend or ascend along the main body structure of the extension bearing mechanism 4. When descending, the butt joint pressing mechanism 6 can be connected with the butt joint drilling mechanism 8 in the specified area of the material conveying structure, drive the butt joint drilling mechanism 8 to rotate, and push the butt joint drilling mechanism 8 downward at the same time, so that the butt joint drilling mechanism 8 can drill into the coal seam. Then, the butt joint pressing mechanism 6 is disconnected with the butt joint drilling mechanism 8 that has completed drilling, and the butt joint pressing mechanism 6 is driven to ascend until the end of the ascending. Then, the material conveying structure center switching mechanism 5 added to the extension bearing mechanism 4 is driven to operate. The module supply mechanism 7 pushes the new butt joint drilling mechanism 8 into the material conveying structure center switching mechanism 5 in the form of a magazine supply, and then the material conveying structure center switching mechanism 5 rotates and guides the new butt joint drilling mechanism 8 to the working area. The butt joint pressing mechanism 6 repeats the pushing and drilling driving operation. Two groups of butt joint drilling mechanisms 8 can be spliced by connecting the first end with the tail end.The drill bit portion of the upper docking drilling mechanism 8 will be embedded into the tail end of the lower docking drilling mechanism 8 to complete the splicing, and the rotary drive end of the docking pressing mechanism 6 is similar to the drill bit structure of the docking drilling mechanism 8, so it can always be docked with the uppermost docking drilling mechanism 8, when the uppermost docking drilling mechanism 8 is driven to rotate, all the spliced docking drilling mechanisms 8 will also rotate and descend to drill, when the docking pressing mechanism 6 drives the docking drilling mechanism 8 to rotate in the drilling direction, the drive end of the docking pressing mechanism 6 will always be docked with the docking drilling mechanism 8, and when it is driven in the opposite direction, the drive end of the docking pressing mechanism 6 will be disconnected from the tail end of the docking drilling mechanism 8, so that it can realize one-way driving and abutting, and in the opposite direction, it is synchronized to be disconnected, when the drilling rods need to be retrieved, the docking pressing mechanism 6 only needs to lift all the spliced docking drilling mechanisms 8, and then drive them to be disconnected in the opposite direction, while the docking pressing mechanism 6 rises, the material conveying structure center switching mechanism 5 will always drive the uppermost docking drilling mechanism 8 to be conveyed to the output direction of the extension bearing mechanism 4, and the tapered push plate added in the output direction of the extension bearing mechanism 4 will drive the center switching mechanism 5 to automatically push the docking drilling mechanism 8 out of the extension bearing mechanism 4 for recovery, while the docking pressing mechanism 6 extracts each spliced docking drilling mechanism 8 one by one, the center switching mechanism 5 will rotate the material conveying one by one due to the rising of the docking pressing mechanism 6, so that the docking drilling mechanisms 8 that need to be retrieved can be separated one by one.

[0023] Please refer to the attached drawings Figure 1 -attached drawings Figure 7, the extension bearing mechanism 4 is located on the working frame 1 and can drive the vertical extension and folding displacement of the drilling and drill rod structure, the extension bearing mechanism 4 includes a straight bearing table 41, a support connecting rod 43 and an intermittent traction assembly, the straight bearing table 41 is tractioned by a hydraulic output between the straight bearing table 41 and the working frame 1, the bottom of the straight bearing table 41 is provided with a straight sliding groove, the straight bearing table 41 is fixed with a crank arm 42 on one side, and the crank arm 42 is rotated on the side of the working frame 1 close to the front extension frame 2, one end of the support connecting rod 43 is rotated on the working frame 1, and the other end is embedded and slid in the straight sliding groove of the straight bearing table 41, a central rotating shaft 44 is rotated in the center of the straight bearing table 41, a limiting cylinder frame 45 is embedded and fixed in the straight bearing table 41 and coaxial with the central rotating shaft 44, and the relative conveying pipes are distributed on both sides of the limiting cylinder frame 45, and a working slot is arranged on the front side of the limiting cylinder frame 45, an embedded butt joint frame 46 is fixed on one side of the straight bearing table 41 and butts the side of the limiting cylinder frame 45 opposite to the conveying pipe, the intermittent traction assembly is arranged on the side of the straight bearing table 41 away from the front extension frame 2, and a pushing cone plate is fixed on the side wall of the straight bearing table 41 close to the relative conveying pipe output direction of the limiting cylinder frame 45, when drilling is needed, the hydraulic system is started, the hydraulic output drives the main body of the straight bearing table 41 of the extension bearing mechanism 4 to rotate along the working frame 1, and the crank arm 42 and the support connecting rod 43 work cooperatively: the crank arm 42 is fixed on one side of the straight bearing table 41 to provide a rotating fulcrum, one end of the support connecting rod 43 is rotated on the working frame 1, and the other end is embedded in the straight sliding groove of the straight bearing table 41 to ensure stable rotation and locking in the vertical position, after the extension bearing mechanism 4 is unfolded, the straight bearing table 41 is in a vertical state, the limiting cylinder frame 45 and the central rotating shaft 44 in the straight bearing table 41 are aligned with the drilling direction, and the guide sleeve of the front extension frame 2 helps to correct the initial drilling position of the drill rod, when the extension bearing mechanism 4 is unfolded, the module supply mechanism 7 butts the input side of the limiting cylinder frame 45, the drill rod can enter the center switching mechanism 5 of the material conveying structure, and the shaft structure on both sides of the driving traction rod 65 of the butt-in pressing mechanism 6 will be embedded in the outer groove of the trapezoidal guide groove of the traction plate 49, the trapezoidal guide groove has two parallel and communicating guide grooves, since the shaft is in the outer groove, the driving traction rod 65 is guided away from the traction runner 48, the clamping bead structure of the driving traction rod 65 will not be embedded in the spiral arc groove of the traction runner 48, so the traction runner 48 will not be driven to rotate, in this way, the center switching mechanism 5 remains stationary to avoid reverse rotation or accidental material replacement.

[0024] Please refer to the accompanying drawings Figure 1 - the accompanying drawings Figure 11, the center switching mechanism 5 is located on the extension bearing mechanism 4, cooperates with the relative conveying pipe of the center rotating shaft 44 and the limiting cylinder frame 45 for continuously conveying the drill rod structure, the center switching mechanism 5 comprises a multi-groove rotating wheel 51, the multi-groove rotating wheel 51 is fixed on the center rotating shaft 44 and is embedded into the limiting cylinder frame 45, and the multi-groove rotating wheel 51 is provided with embedded guide grooves corresponding to the number of spiral arc grooves of the traction rotating wheel 48, the embedded guide grooves are embedded with push-out strips 52 on the inner wall of the multi-groove rotating wheel 51, and the push-out strips 52 and the inner wall of the multi-groove rotating wheel 51 are provided with snap spring structures, the top end of the push-out strip 52 is a jacking block structure, the intermittent traction assembly comprises the traction rotating wheel 48 and the traction plate 49, the traction rotating wheel 48 is fixed on the outer side end of the center rotating shaft 44, and the spiral arc grooves are circumferentially distributed on the center rotating shaft 44, the traction plate 49 is fixed on the side wall of the in-line bearing table 41, and adjacent traction rotating wheels 48 are provided, and a trapezoidal guide groove is arranged in the inner side wall of the traction plate 49, the output guide frame 47 is fixed on the side of the in-line bearing table 41 away from the embedded butt joint frame 46, and is butted with the relative conveying pipe of the limiting cylinder frame 45, when descending, the shaft is again inserted into the outer side groove of the trapezoidal guide groove, avoiding the rotation of the traction rotating wheel 48, ensuring that the material replacement only occurs in the ascending stage, after the drilling is completed, all the spliced drill rods are lifted on the butt joint pressing mechanism 6, the butt joint pressing mechanism 6 ascends along the screw, and simultaneously rotates in the opposite direction to separate, so that the multi-tooth rotating frame 64 is separated from the uppermost drill rod, during the ascending process, the shaft of the driving traction rod 65 is in the inner side groove of the trapezoidal guide groove, the snap bead is embedded into the spiral arc groove of the traction rotating wheel 48, the traction rotating wheel 48 is driven to rotate, thereby driving the multi-groove rotating wheel 51 to rotate, the push-out strip 52 of the multi-groove rotating wheel 51 pushes the uppermost drill rod to the output direction, the push-out strip 52 is pushed out by the push cone plate on the output side of the limiting cylinder frame 45, and the drill rod is recovered through the output guide frame 47, after the drill rod is pushed out, the drill rod is collected by an external device or manually, the butt joint pressing mechanism 6 is gradually lifted, the intermittent traction assembly triggers the rotation of the center switching mechanism 5 once every time the distance is increased, so that the next group of drill rods moves to the output position, realizing the recovery of the drill rods in groups, when descending, the shaft is in the outer side groove, avoiding the material replacement, and ensuring the recovery process.

[0025] Please refer to the accompanying drawings Figure 1 - the accompanying drawings Figure 13The docking pressure mechanism 6 is located on the extension bearing mechanism 4, cooperates with the screw structure of the in-line bearing table 41, the working slot structure of the limiting cylinder frame 45, the spiral arc slot of the traction rotating wheel 48 and the trapezoidal guide slot of the traction plate 49 to generate the rotation of the drill rod structure and the drilling displacement, the docking pressure mechanism 6 includes a side sliding table 61 which slides on the side wall of the in-line bearing table 41, the side sliding table 61 is sleeved on the screw rod of the in-line bearing table 41 through the nut sleeve structure, the inner wall of the side sliding table 61 is fixed with a rotary driving element 62, a multi-tooth rotating frame 64 is fixed on the output end of the rotary driving element 62 and is located in the center of the working slot of the limiting cylinder frame 45, the multi-tooth rotating frame 64 is composed of circumferentially distributed rack structures, and the bottom end of the rack structure is provided with an outward extension strip structure, a driving traction rod 65 slides on the top of the side sliding table 61 and is connected with the inner wall of the side sliding table 61 through a reset clasp spring, the both sides of the driving traction rod 65 are provided with clamping shaft structures and can extend into the trapezoidal guide slot of the traction plate 49, the inner side wall of the driving traction rod 65 is fixed with a clamping ball structure which can be embedded into the spiral arc slot of the traction rotating wheel 48, the inner wall of the side sliding table 61 is fixed with a limiting arc piece 63 which is attached to the inner wall of the working slot of the limiting cylinder frame 45, the docking pressure mechanism 6 is started, the screw structure of the in-line bearing table 41 is linearly lowered, the side sliding table 61 moves along the screw rod, the nut sleeve structure ensures smooth displacement, at the same time, the rotary driving element 62 works to drive the multi-tooth rotating frame 64 to rotate, the multi-tooth rotating frame 64 is composed of circumferentially distributed racks, the bottom end of the rack has an outward extension strip structure for docking with the drill rod, the docking pressure mechanism 6 drives the drill rod to rotate in the drilling direction and pushes down at the same time, so that the drill rod drills into the coal seam, the limiting arc piece 63 is attached to the inner wall of the limiting cylinder frame 45 to prevent deviation, when the first drill rod drills, the docking pressure mechanism 6 stops pushing down and reversely rotates, so that the multi-tooth rotating frame 64 is separated from the docking embedded groove 83 at the end of the drill shaft 81, then the docking pressure mechanism 6 rises to the initial position along the screw rod, in the rising process, the clamping shaft of the driving traction rod 65 is switched from the outer slot of the trapezoidal guide slot to the inner slot, the clamping shaft naturally transitions due to the communication of the slots, when the clamping shaft is in the inner slot, the driving traction rod 65 is guided to be close to the traction rotating wheel 48, the clamping ball is embedded into the spiral arc slot of the traction rotating wheel 48, as the docking pressure mechanism 6 rises, the clamping ball moves along the spiral arc slot to drive the traction rotating wheel 48 to rotate, the traction rotating wheel 48 connects the multi-slot rotating wheel 51 through the central rotating shaft 44, so as to drive the multi-slot rotating wheel 51 to rotate, when the multi-slot rotating wheel 51 rotates, the next drill rod is pushed into the working slot of the limiting cylinder frame 45 from the module supply mechanism 7.

[0026] Please refer to the attached drawings Figure 1 -attached drawings Figure 15The module supply mechanism 7 is located on the extension bearing mechanism 4, and can store and output drill pipe structures in batches through the embedded docking frame 46, and can also be modularly replaced. The module supply mechanism 7 comprises a straight-line storage box 71 which can be movably inserted into the embedded docking frame 46. The straight-line storage box 71 is internally embedded with an embedded arc plate 72 which is reset by a snap spring structure. The drilling mechanism 8 is pre-loaded in the straight-line storage box 71 of the module supply mechanism 7 in batches. The straight-line storage box 71 can be modularly replaced and docked through the embedded docking frame 46 of the extension bearing mechanism 4. The embedded arc plate 72 in the straight-line storage box 71 keeps the position of the drill pipe through the snap spring structure, allowing the drill pipe to be sequentially output under the thrust.

[0027] Please refer to the accompanying drawings ​ - the accompanying drawings ​ The drilling mechanism 8 is an independent structure and mainly a drill pipe structure of a drill rig. The drilling mechanism 8 can be loaded into the module supply mechanism 7 in batches and can be docked with each other to increase the drilling distance. The drilling mechanism 8 comprises a drill shaft 81 which can be embedded into the embedded arc plate 72. The drill shaft 81 is fixed at one end with a multi-tooth drill bit 82 which is composed of a circumferentially distributed rack structure and is provided at the end with an extension blade structure. The other end of the drill shaft 81 away from the multi-tooth drill bit 82 is provided with a docking embedding groove 83 which is composed of circumferentially distributed embedding holes and a bottom extension hole. A new drill pipe is guided to the working area, the new drill pipe is spliced with the drilled drill pipe, the extension blade of the multi-tooth drill bit 82 of the upper drill pipe is embedded into the embedding hole and the extension hole of the docking embedding groove 83 of the lower drill pipe, mechanical clamping is realized, all spliced drill pipes transmit torque through the rack structure, the docking pressing mechanism 6 is lowered again, is docked with the uppermost drill pipe, drives all spliced drill pipes to rotate and push down together, and deep drilling is realized.

[0028] Working principle: The drill rig is mainly aimed at the deep hole drilling operation of complex coal seam in coal mine. The overall equipment takes the operation rack 1 as the main fixed carrier, and the structure mainly responsible for drilling is installed on the extension bearing mechanism 4. When drilling is not needed, the extension bearing mechanism 4 will be placed in a relatively parallel state on the operation rack 1, and the side displacement wheel group 3 installed on both sides of the operation rack 1 is used for displacement transfer. When drilling is needed, the extension bearing mechanism 4 will rotate along the operation rack 1 and form the vertical state required for drilling. The butt joint drilling mechanism 8 required by the drill rig can be pre-quantitative transferred to the module supply mechanism 7, and the module supply mechanism 7 can be butt jointed and installed on the input structure of the extension bearing mechanism 4. The extension bearing mechanism 4 itself contains a material conveying structure formed in a circumferential distribution form and is butt jointed with the module supply mechanism 7. The butt joint pressing mechanism 6 for driving the butt joint drilling mechanism 8 to advance and rotate can be driven by the screw structure linear displacement contained in the extension bearing mechanism 4 to descend or ascend along the main body structure of the extension bearing mechanism 4. When descending, it will be butt jointed with the butt joint drilling mechanism 8 in the specified area of the material conveying structure, drive it to rotate, and at the same time, push the butt joint drilling mechanism 8 down to drill into the coal seam. Then, by releasing the butt joint pressing mechanism 6 from the butt joint with the butt joint drilling mechanism 8 that has completed drilling, and driving the butt joint pressing mechanism 6 to ascend until it reaches the upper end, the material conveying structure center switching mechanism 5 installed on the extension bearing mechanism 4 will be operated. The module supply mechanism 7 will be pushed into the material conveying structure center switching mechanism 5 in the form of a magazine supply, and then guided to the working area by the material conveying structure center switching mechanism 5, and the butt joint pressing mechanism 6 will repeat the pushing and drilling driving operation. The two groups of butt joint drilling mechanisms 8 can be connected by the first position to splice the drill bit part of the upper butt joint drilling mechanism 8 into the tail end of the lower butt joint drilling mechanism 8 to complete the splicing. The rotary driving end of the butt joint pressing mechanism 6 is similar to the drill bit structure of the butt joint drilling mechanism 8, so it can always be butt jointed with the uppermost butt joint drilling mechanism 8. When driving the uppermost butt joint drilling mechanism 8 to rotate, all the butt joint drilling mechanisms 8 spliced together will also rotate and descend to drill, so as to achieve the effect of deep drilling. When the butt joint pressing mechanism 6 drives the butt joint drilling mechanism 8 to rotate in the drilling direction, the driving end of the butt joint pressing mechanism 6 will always be butt jointed with the butt joint drilling mechanism 8, and when it is driven in the opposite direction, the driving end of the butt joint pressing mechanism 6 will be disconnected from the tail end of the butt joint drilling mechanism 8, so that it can be driven in one direction and contacted and engaged in the opposite direction. When the drill rods need to be recovered, the butt joint pressing mechanism 6 can lift all the spliced butt joint drilling mechanisms 8 and then drive them to disconnect. The butt joint pressing mechanism 6 rises at the same time, and the material conveying structure center switching mechanism 5 will transport the uppermost butt joint drilling mechanism 8 to the output direction of the extension bearing mechanism 4.And the conical push plate installed in the output direction of the extension bearing mechanism 4 will drive the center switching mechanism 5 to automatically dock the drilling mechanism 8 and push it out for recovery in the output direction of the extension bearing mechanism 4, while a group of docking and pressing mechanisms 6 extract each spliced docking drilling mechanism 8, the center switching mechanism 5 will rotate in turn to transfer the material due to the rising of the docking and pressing mechanism 6, so that each group of docking drilling mechanisms 8 can be separated from the docking drilling mechanisms 8 that need to be recovered, first, when the drilling rig is not working, the extension bearing mechanism 4 is pulled by the hydraulic output to keep parallel to the working frame 1, at this time, the side displacement wheel group 3 contacts the ground, allowing the whole drilling rig to move, the front extension frame 2 is fixed on the side wall of the working frame 1, and its guide sleeve is used for subsequent correction of the position of the drill pipe, when moving, the operator pushes or pulls the drilling rig, and the side displacement wheel group 3 provides rolling support, so that the drilling rig can be flexibly transported to the designated position of the coal mine working face, when drilling is needed, the hydraulic system is started, the hydraulic output pulls the main body of the extension bearing mechanism 4 along the working frame 1 to rotate, and the crankshaft rotating arm 42 and the supporting connecting rod 43 work cooperatively: the crankshaft rotating arm 42 is fixed on one side of the straight-line bearing table 41 to provide a rotating support point; one end of the supporting connecting rod 43 is rotatably arranged on the working frame 1, and the other end is embedded in the straight-line sliding groove of the straight-line bearing table 41 to ensure stable rotation and locking in the vertical position, after the extension bearing mechanism 4 is unfolded, the straight-line bearing table 41 is in a vertical state, the limiting cylinder frame 45 and the center rotating shaft 44 in the straight-line bearing table 41 are aligned with the drilling direction, the guide sleeve of the front extension frame 2 helps to correct the initial drilling position of the drill pipe, the docking drilling mechanism 8 is preloaded in batches in the straight-line material placing box 71 of the module supply mechanism 7, the straight-line material placing box 71 can be modularly replaced, and the docking is realized by inserting the embedded docking frame 46 of the extension bearing mechanism 4, the built-in arc plate 72 in the straight-line material placing box 71 keeps the position of the drill pipe through the snap spring structure, allowing the drill pipe to be sequentially output under the pushing force, when the extension bearing mechanism 4 is unfolded, the module supply mechanism 7 is docked with the input side of the limiting cylinder frame 45, the drill pipe can enter the center switching mechanism 5 of the material transfer structure, the docking and pressing mechanism 6 is started, the screw structure of the straight-line bearing table 41 is linearly lowered, the side sliding table 61 moves along the screw, the nut sleeve structure ensures stable displacement, and the rotary driving element 62 works, driving the multi-tooth rotating frame 64 to rotate, the multi-tooth rotating frame 64 is composed of circumferentially distributed racks, and the racks have an extension bar structure at the bottom end for docking with the drill pipe, when the docking and pressing mechanism 6 is lowered, the multi-tooth rotating frame 64 enters the working slot of the limiting cylinder frame 45 and is docked with the docking embedded groove 83 of the first drill pipe docking drilling mechanism 8 prepositioned in the working area, the rack structure of the docking embedded groove 83 matches the multi-tooth rotating frame 64 to achieve clamping, during the lowering process, the clamping shaft structure on both sides of the driving traction rod 65 of the docking and pressing mechanism 6 is embedded in the outer side groove of the trapezoidal guide groove of the traction plate 49, the trapezoidal guide groove has two parallel and connected guide grooves, since the clamping shaft is in the outer side groove, the driving traction rod 65 is guided away from the traction rotating wheel 48, the clamping bead structure of the driving traction rod 65 cannot be embedded in the spiral arc groove of the traction rotating wheel 48, and therefore the traction rotating wheel 48 cannot be driven to rotate,Thus, the center switching mechanism 5 remains stationary, avoiding reverse rotation or accidental reloading, and the docking and pressing mechanism 6 drives the drill rod to rotate in the drilling direction while pushing down, allowing the drill rod to drill into the coal seam, and the limiting arc piece 63 is attached to the inner wall of the limiting cylinder frame 45 to prevent deviation. When the first drill rod drills, the docking and pressing mechanism 6 stops pushing down and reverses the rotation, allowing the multi-tooth rotating frame 64 to disengage from the docking and embedding groove 83 at the end of the drill shaft 81, and then the docking and pressing mechanism 6 rises along the screw to the initial position. During the rising process, the clamping shaft that drives the traction rod 65 is switched from the outer groove of the trapezoidal guide groove to the inner groove. Due to the connection of the grooves, the clamping shaft naturally transitions. When the clamping shaft is in the inner groove, the drive traction rod 65 is guided to be close to the traction wheel 48, and the clamping bead is embedded in the spiral arc groove of the traction wheel 48. As the docking and pressing mechanism 6 rises, the clamping bead moves along the spiral arc groove, driving the traction wheel 48 to rotate. The traction wheel 48 is connected to the multi-slot rotating wheel 51 through the central rotating shaft 44, thereby driving the multi-slot rotating wheel 51 to rotate. When the multi-slot rotating wheel 51 rotates, the next drill rod is pushed into the working slot of the limiting cylinder frame 45 from the module supply mechanism 7. The new drill rod is guided to the working area, and the new drill rod is spliced with the drilled drill rod. The extension blade of the multi-tooth drill bit 82 of the upper drill rod is embedded in the embedding hole and extension hole of the docking and embedding groove 83 of the lower drill rod, realizing mechanical clamping. All spliced drill rods transmit torque through the rack structure. The docking and pressing mechanism 6 is lowered again to dock with the uppermost drill rod, driving all spliced drill rods to rotate and push down together, realizing deep drilling. When it is lowered, the clamping shaft enters the outer groove of the trapezoidal guide groove again, avoiding the rotation of the traction wheel 48, and ensuring that the reloading only occurs in the rising stage. After drilling is completed, the docking and pressing mechanism 6 lifts all spliced drill rods, and the docking and pressing mechanism 6 rises along the screw while reversing the rotation direction, allowing the multi-tooth rotating frame 64 to disengage from the uppermost drill rod. During the rising process, the clamping shaft that drives the traction rod 65 is in the inner groove of the trapezoidal guide groove, and the clamping bead is embedded in the spiral arc groove of the traction wheel 48, driving the traction wheel 48 to rotate, thereby driving the multi-slot rotating wheel 51 to rotate. The push-out strip 52 of the multi-slot rotating wheel 51 pushes the uppermost drill rod to the output direction, and the push-out strip 52 is pushed out by the push-out cone plate at the output side of the limiting cylinder frame 45, assisting in pushing out the drill rod. The drill rod is pushed out through the output guide frame 47, and the drill rod is collected by an external device or manually. The docking and pressing mechanism 6 is gradually lifted, and the intermittent traction assembly triggers the rotation of the center switching mechanism 5 once every time the docking and pressing mechanism 6 is lifted by a certain distance, allowing the next group of drill rods to move to the output position, realizing the recycling of one group after another. When it is lowered, the clamping shaft is in the outer groove, avoiding reloading and ensuring the orderly recycling process.

[0029] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A deep hole drilling jumbo for coal mines that adapts to complex coal seam geology, characterized by, Include: Job frame (1) for the fixed structure of coal mine deep hole drilling rig; Front extension frame (2) is located on the job frame (1), used for fixing the calibration structure of the drilling rig drill rod structure drilling position; Side displacement wheel group (3) is located on the job frame (1), used for forming the movement displacement structure of the drilling rig; Extension bearing mechanism (4) is located on the job frame (1), which can drive the vertical unfolding and folding displacement of drilling and drill rod structure; Center switching mechanism (5) is located on the extension bearing mechanism (4), which cooperates with the relative conveying pipe of center shaft (44) and limiting cylinder frame (45) for continuous conveying of drill rod structure; Butt joint pressure mechanism (6) is located on the extension bearing mechanism (4), which cooperates with the screw structure of straight line bearing table (41), the working slot structure of limiting cylinder frame (45), the spiral arc slot of traction runner (48) and the trapezoidal guide groove of traction plate (49) to generate drill rod structure rotation and drilling displacement; Module supply mechanism (7) is located on the extension bearing mechanism (4), which cooperates with the embedded butt joint frame (46) to store and output drill rod structure in batches, and can also be replaced in modules; The butt joint drilling mechanism (8) is an independent structure, mainly for the drill rod structure of the drilling rig, which cooperates with the multi-tooth rotating frame (64), can be loaded into the module supply mechanism (7) in batches, and can be butt jointed with each other to increase the drilling distance.

2. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 1, characterized in that, The front extension frame (2) is fixed on the side wall of the job frame (1), and is provided with a guide sleeve, the side displacement wheel group (3) is arranged on the both sides of the job frame (1), the extension bearing mechanism (4) is rotatably arranged on the side of the job frame (1) close to the front extension frame (2), the center switching mechanism (5) is embedded in the extension bearing mechanism (4), the butt joint pressure mechanism (6) is linearly displaced along the extension bearing mechanism (4) and embedded in the extension bearing mechanism (4), the module supply mechanism (7) can be spliced and embedded on the extension bearing mechanism (4), and the butt joint drilling mechanism (8) can be arranged in the module supply mechanism (7) in batches and can enter the extension bearing mechanism (4).

3. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 1, characterized in that, The extension bearing mechanism (4) comprises a straight-line bearing table (41), a support connecting rod (43) and an intermittent traction assembly, the straight-line bearing table (41) is pulled by a hydraulic output between the working frame (1), the bottom of the straight-line bearing table (41) is provided with a straight-line sliding groove, the straight-line bearing table (41) is fixed with a crank arm (42) on one side, and rotates on the side of the working frame (1) close to the front extension frame (2) through the crank arm (42), one end of the support connecting rod (43) rotates on the working frame (1), and the other end is embedded and slides in the straight-line sliding groove of the straight-line bearing table (41), the center rotating shaft (44) rotates in the center of the straight-line bearing table (41), the limiting cylinder frame (45) is embedded and fixed in the straight-line bearing table (41), and the center rotating shaft (44) is coaxial, and the relative conveying pipe is distributed on the two sides of the limiting cylinder frame (45), and the working slot is arranged on the front side of the limiting cylinder frame (45), the embedded butt joint frame (46) is fixed on one side of the straight-line bearing table (41), and is butted with the side of the relative conveying pipe of the limiting cylinder frame (45), the intermittent traction assembly is arranged on the side of the straight-line bearing table (41) away from the front extension frame (2), and the straight-line bearing table (41) is fixed with a push cone plate on the side wall close to the relative conveying pipe output direction of the limiting cylinder frame (45).

4. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 1, characterized in that, The center switching mechanism (5) comprises a multi-slot rotating wheel (51), the multi-slot rotating wheel (51) is fixed on the center rotating shaft (44) and embedded in the limiting cylinder frame (45), and the multi-slot rotating wheel (51) is provided with embedded guide grooves corresponding to the number of spiral arc slots of the traction rotating wheel (48), the embedded guide groove inner wall of the multi-slot rotating wheel (51) is embedded with a push-out strip (52), and the push-out strip (52) and the multi-slot rotating wheel (51) inner wall are provided with a snap spring structure, and the top end of the push-out strip (52) is a push block structure.

5. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 1, characterized in that, The butt-in mechanism (6) comprises a side sliding table (61), the side sliding table (61) slides on the side wall of the straight-line bearing table (41), the side sliding table (61) is sleeved on the screw rod of the straight-line bearing table (41) through the nut sleeve structure, the inner wall of the side sliding table (61) is fixed with a rotary driving element (62), the multi-tooth rotating frame (64) is fixed on the output end of the rotary driving element (62) and located in the center of the working slot of the limiting cylinder frame (45), the multi-tooth rotating frame (64) is composed of circumferentially distributed rack structures, and the bottom end of the rack structure is provided with an extension strip structure, the driving traction rod (65) slides on the top of the side sliding table (61), and is connected with the inner wall of the side sliding table (61) through a reset snap spring, the driving traction rod (65) is provided with a clamping shaft structure on both sides, and can be extended into the trapezoidal guide groove of the traction plate (49), the clamping shaft structure is fixed on the inner side wall of the driving traction rod (65), and can be embedded into the spiral arc groove of the traction rotating wheel (48).

6. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 1, characterized in that, The module supply mechanism (7) comprises a straight-line material placing box (71) which is movably inserted into the embedded butt joint frame (46), the inner part of the straight-line material placing box (71) is embedded with the built-in arc plate (72), and the built-in arc plate (72) is pulled back by the clasp spring structure.

7. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 1, characterized in that, The butt joint drilling mechanism (8) comprises a drill shaft (81) which is embedded into the built-in arc plate (72), one end of the drill shaft (81) is fixed with the multi-tooth drill bit (82), the multi-tooth drill bit (82) is composed of the circumferentially distributed rack structure, and the distal end is provided with the extended blade structure, the other end of the drill shaft (81) away from the multi-tooth drill bit (82) is provided with the butt joint embedding groove (83), the butt joint embedding groove (83) is composed of the circumferentially distributed embedding holes and the bottom extension hole.

8. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 3, characterized in that, The intermittent pulling assembly comprises the pulling rotary wheel (48) and the pulling plate (49), the pulling rotary wheel (48) is fixed at the outer side end of the central rotary shaft (44), and the spiral arc grooves are circumferentially distributed on the central rotary shaft (44), the pulling plate (49) is fixed on the side wall of the straight-line bearing table (41), and is adjacent to the pulling rotary wheel (48), and the trapezoidal guide groove is arranged in the inner side wall of the pulling plate (49).

9. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 3, characterized in that, The straight-line bearing table (41) is fixed with the output guide frame (47) on the side away from the embedded butt joint frame (46), and is opposite to the relative conveying pipeline of the limiting cylinder frame (45).

10. The deep hole drilling jumbo for coal mines that adapts to complex coal seam geology according to claim 5, characterized in that, The inner wall of the side-arranged sliding table (61) is fixed with the limiting arc piece (63), and is abutted and displaced in the working slot inner wall of the limiting cylinder frame (45).

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