WO2017041364A1

WO2017041364A1 - Tracked walking, self-rotating bidirectional drilling coal mining machine and application method thereof

Info

Publication number: WO2017041364A1
Application number: PCT/CN2015/095486
Authority: WO
Inventors: 刘送永; 杜长龙; 崔新霞; 李建平; 江红祥; 唐玮
Original assignee: 中国矿业大学
Priority date: 2015-09-11
Filing date: 2015-11-25
Publication date: 2017-03-16
Also published as: CN105178853B; CN105178853A

Abstract

Provided are a tracked walking, self-rotating bidirectional drilling coal mining machine and an application method thereof. The coal mining machine comprises a coal mining machine upper frame assembly (2) and a coal mining machine base (3) provided under the coal mining machine upper frame assembly (2). A rotary supporting device (4) is provided under the coal mining machine base. A tracked walking mechanism (6) is provided under the rotary supporting device (4). A transmission device (5) connected to the rotary supporting device (4) is provided on the tracked walking mechanism (6). The drilling coal mining machine disposed in a roadway firstly mines one side of a thin seam, rotates by 360° by controlling the rotary supporting device (4) after finishing mining the thin seam on the side, and mines the other side after the rotary supporting device (4) rotates to the other side of the thin seam, thereby allowing a screw drilling machine to bidirectionally mine coal at the same site without moving the equipment greatly, thus improving mining efficiency. In addition, when a crossing appears en route from a main roadway to a working face roadway, a screw bit can self-rotate, thus easily passing through the roadway crossing to reach a working face and saving on equipment moving time.

Description

Track walking self-rotating two-way drilling type coal mining machine and using method thereof

Technical field

The invention relates to a two-way drilling type coal mining machine and a using method thereof, in particular to a crawler walking self-rotating two-way drilling type coal mining machine suitable for a drilling type coal mining machine and a using method thereof.

Background technique

The auger mining method is a mature coal mining method for unmanned coal mining face. The coal mining method is widely used for thin coal seams and extremely thin coal seams with unstable surrounding rock, and is also used for corner coal. Mining and recycling of various coal pillars. However, at present, the drilling type shearer has only the function of one-way mining of coal seams in the thin coal seam mining process. Therefore, in the case of thin coal seams on both sides of the roadway, the existing auger type shearer cannot simultaneously realize Mining, after mining one side, transfer to the other side of the mining, the whole process results in low efficiency, time-consuming and labor-intensive, high labor intensity, coal mining time and equipment movement time.

Summary of the invention

Technical Problem: The object of the present invention is to overcome the deficiencies in the prior art, and to provide a crawler walking and rotating two-way drilling type coal mining machine and a using method thereof, which can be added once by adding a rotating device based on the prior art. Achieve the auger to achieve the mining of thin coal seams on both sides.

Technical Solution: The crawler walking self-rotating two-way drilling type coal mining machine of the present invention comprises a coal mining machine upper frame assembly and a shearer base disposed under the shearer upper frame assembly, wherein the shearer base is provided under the base of the shearer a slewing support device, wherein the slewing support device is provided with a crawler running mechanism, and the crawler travel mechanism is provided with a transmission device connected to the slewing support device;

The slewing support device comprises an inner ring and an outer ring on the inner ring, and a rolling ball body is arranged between the inner ring and the outer ring, and the outer ring is fixed together with the shearer base through the bolt, the inner ring The bolts are fixed together with the crawler walking mechanism;

The crawler running mechanism includes a crawler belt, a driving wheel, a tensioning device, a guiding wheel, a tensioning device, a roller, a connecting frame, a driving motor, a chassis support frame and a side wall; the driving wheel and the guiding wheel pass through the same A rolling bearing in the center hole is connected to a central shaft at both ends of the connecting frame, the crawler belt is engaged on the teeth of the driving wheel and the guiding wheel, and the tensioning device is connected to both ends of the driving wheel central shaft by bolts, the branch The heavy wheel is coupled to the central shaft of the connecting frame through a rolling bearing in the central hole thereof, and is engaged with the crawler belt, the driving motor is bolted to the connecting frame, and the protruding shaft is connected with the central shaft of the driving wheel, The chassis support frame is bolted to the connecting frame, and the side wall is welded to the connecting frame;

The transmission device comprises a hydraulic motor, a brake lock, a hydraulic motor gear, a shaft I large gear, a shaft I, an axle I pinion, a shaft II large gear, a shaft II, a runner, a rolling bearing; the hydraulic motor passes The bolt is connected to a chassis support frame in the crawler running mechanism, the brake locker passes through the hydraulic motor output shaft and is bolted to the chassis support frame, and the hydraulic motor gear is firmly connected to the hydraulic motor output shaft through a flat key. The shaft I large gear and the shaft II large gear are respectively connected with the shaft I and the shaft II through splines, and the shaft I pinion is connected with the shaft I through the flat key, and the shaft I and the shaft II are all rolled. The movable bearing supports and performs the rotary motion, and the hydraulic motor gear and the shaft I large gear, the shaft I pinion and the shaft II large gear, the runner and the outer ring of the slewing support device are correctly meshed with each other.

The outer side of the slewing support device is provided with a side wall for preventing large pieces of coal from entering the rotary reduction gear box.

The use of crawler walking self-rotating two-way drilling shearer:

The drilling type shearer is arranged in the roadway, and the mining operation is first carried out on the side of the thin coal seam. After the mining operation of the thin coal seam is completed, the hydraulic motor is started through the control panel button, and the hydraulic motor transmits the torque to the hydraulic pressure through the output shaft thereof. On the motor gear, the high-speed small torque is converted into low-speed and large torque to the runner through the shaft I large gear, the shaft I, the shaft I pinion, the shaft II large gear, and the shaft II, and the runner passes the gear teeth. Engagement drives the outer ring in the slewing support device to rotate, and then connects the hexagonal bolts on the base of the shearer and the outer ring, and finally transmits the torque to the base of the shearer to realize 360° rotation of the driller. After the slewing support device rotates to the position of mining the thin coal seam on the other side, the control panel controls the brake lock to lock the hydraulic motor output shaft to prevent the spiral drill bit on the shearer upper frame assembly from over-rotating or coal mining operation. The phenomenon of revolving occurs, and the mining operation of the thin coal seam on the other side is carried out, so that the auger can be used for bidirectional coal mining at the same place, the coal mining efficiency is improved, and the equipment transfer and mining time are reduced.

Advantageous Effects: The present invention can realize that the drill type shearer successively extracts thin coal seams on both sides in the same place of the roadway, and does not need to move the drill type coal mining machine after the completion of one thin coal seam mining, and then carry out the thin coal seam mining on the other side. It saves time and improves coal mining efficiency; when the drill type shearer meets the intersection at the way from the main roadway to the working face roadway, the spiral drill bit can be self-rotating by means of the slewing support device, so that it can easily reach the work through the roadway fork. Face saving equipment movement time. In addition, the transmission device of the present invention is provided with a brake lock device which can prevent the spiral drill bit from being over-rotated or the spiral drill bit from rotating during the coal mining, which greatly improves the reliability of the device; the invention adopts a hydraulic motor and a small volume. The rotary reduction gearbox realizes the rotary motion of the auger bit, and ensures reliable transmission torque and compact structure. It is only necessary to add a corresponding control switch in the control panel to control the hydraulic motor and the brake locker, and the operation is convenient. It is easy to maintain, has strong adaptability and wide application range, and has wide practicality in the field.

DRAWINGS

1 is a schematic structural view of a crawler walking and rotating two-way drill type coal mining machine assembly according to the present invention;

2 is a top plan view showing the structure of the coal mining machine upper frame assembly of the present invention;

Figure 3 is a top plan view showing the structure of the shearer base of the present invention;

Figure 4 is a cross-sectional view of the shearer base C-C of the present invention;

Figure 5 is a front elevational view showing the connection structure of the slewing support device of the present invention;

Figure 6 is a top plan view showing the connection structure of the slewing support device of the present invention;

Figure 7 is a front elevational view showing the crawler running mechanism of the present invention;

Figure 8 is a top plan view of the crawler running mechanism of the present invention;

Figure 9 is a schematic view showing the operation of the crawler walking and rotating two-way drilling type shearer in the coal mining operation of the present invention;

Fig. 10 is a schematic view showing the operation of the track-worn self-rotating two-way drilling type shearer of the present invention passing through a roadway fork.

In the picture: 1-Drill Shearer, 2-Shearer Shelf Assembly, 3-Shearer Base, 4-Slewing Support, 5-Transmission, 6-Track Walking Mechanism, 7-Hexagon Bolt, 8-shims one, 9-hex bolts, 10-shims two, 11-turning reduction gear box wall, 12-shims three, 13-nut one, 14-nut two, 15-bolt connection hole one, 16-bolt Connection hole 2, 17 - thin coal seam A side, 18 - roadway, 19 - thin coal seam B side, 20 - ballast, 2-1 - drive frame, 2-2- gearbox, 2-3 - stabilizer, 2-4 - side frame, 2-5-hydraulic motor, 2-6-air cylinder, 2-7-spiral drill pipe, 2-8-helical drill bit, 3-1-lateral support frame, 3-2- forward support frame , 3-3- fixed frame, 3-4-fixed frame, 3-5-reverse support frame, 3-6-fixed frame, 3-7-underframe, 3-8-intermediate support frame, 4-1-1 Inner ring, 4-2-ball body, 4-3- outer ring, 5-1—hydraulic motor, 5-2—brake lock, 5-3—hydraulic motor gear, 5-4—shaft I large gear ,5-5-axis I,5-6-axis I pinion,5-7-axis II large gear,5-8-axis II,5-9-rotary wheel,5-10-rolling bearing,6-1- Track, 6-2-drive Wheel, 6-3-tensioning device, 6-4-guide wheel, 6-5-buffer spring, 6-6-roller, 6-7-connector, 6-8-drive motor, 6-9- Chassis support, 6-10 - side wall.

detailed description:

An embodiment of the present invention will be further described below with reference to the accompanying drawings:

The crawler walking self-rotating two-way drilling type coal mining machine of the invention comprises a coal mining machine upper frame assembly 2, a shearer base 3 disposed under the shearer upper frame assembly 2, and a slewing support under the shearer base 3 The device 4, the slewing support device 4 is provided with a crawler running mechanism 6, the crawler traveling mechanism 6 is provided with a transmission device 5 connected to the slewing support device 4;

The slewing support device 4 includes an inner ring 4-1, an outer ring 4-3 sleeved on the inner ring 4-1, and a rolling ball 4-2 between the inner ring 4-1 and the outer ring 4-3. The outer ring 4-3 is fixed to the shearer base 3 by bolts, and the inner ring 4-1 is fixed to the crawler running mechanism 6 by bolts;

The crawler running mechanism 6 includes a crawler belt 6-1, a drive wheel 6-2, a tensioning device 6-3, a guide wheel 6-4, a tensioning device 6-5, a roller 6-6, and a connecting frame 6- 7. The drive motor 6-8, the chassis support frame 6-9 and the side wall 6-10; the drive wheel 6-2 and the guide wheel 6-4 are connected to the connection frame 6-7 through the rolling bearing in the center hole thereof. On the central axis of the end, the crawler belt 6-1 is engaged on the teeth of the drive wheel 6-2 and the guide wheel 6-4, and the tensioning device 6-3 passes through both ends of the central axis of the bolt and the drive wheel 6-2. Connected, the roller 6-6 is connected to the central shaft of the connecting frame 6-7 through a rolling bearing in its central hole, and meshes with the crawler belt 6-1, and the driving motor 6-8 is connected by bolting On the frame 6-7, the extension shaft is connected to the central shaft of the drive wheel 6-2, and the chassis support frame 6-9 is bolted to the connection frame 6-7, and the side wall 6-10 is welded to the connection. On shelves 6-7;

The transmission device 5 includes a hydraulic motor 5-1, a brake lock 5-2, a hydraulic motor gear 5-3, an axle I large gear 5-4, an axle I5-5, an axle I pinion 5-6, Shaft II large gear 5-7, shaft II5-8, runner 5-9, rolling bearing 5-10; the hydraulic motor 5-1 is connected to the chassis support frame 6-9 in the crawler mechanism 6 by bolts, The brake lock 5-2 passes through the output shaft of the hydraulic motor 5-1 and is bolted to the chassis support frame 6-9. The hydraulic motor gear 5-3 is firmly connected to the output shaft of the hydraulic motor 5-1 by a flat key. The shaft I large gear 5-4 and the shaft II large gear 5-7 are respectively connected to the shaft I5-5 and the shaft II5-8 through splines, and the shaft I pinion 5-6 is connected to the shaft I5-5 through the flat key. , axis I5-5, axis II5-8 Both are supported by the rolling bearing 5-10 and do the rotary motion, the hydraulic motor gear 5-3 and the shaft I large gear 5-4, the shaft I pinion 5-6 and the shaft II large gear 5-7, the runner 5-9 and the rotation The outer rings 4-3 of the support device 4 are properly engaged with each other. The outer side of the slewing support device 4 is provided with side walls 6-10 for preventing large pieces of coal from entering the rotary reduction gear box.

As shown in Fig. 1, the crawler walking self-rotating two-way drilling type shearer 1 is mainly composed of a shearer upper frame assembly 2, a shearer base 3, a slewing support device 4, a transmission device 5 and a crawler traveling mechanism 6. The shearer upper frame assembly 2 is mounted on the shearer base 3, and the slewing support device 4 is firmly connected to the shearer base 3 by bolts. The slewing support device 4 is symmetrically provided with a transmission device 5, and the transmission device 5 is mounted on the crawler belt. On the running mechanism 6. The transmission device 5 is mainly composed of a hydraulic motor 5-1, a brake lock 5-2, a hydraulic motor gear 5-3, an axle I large gear 5-4, an axle I5-5, and an axle I pinion 5-6. The shaft II large gear 5-7, the shaft II5-8, the runner 5-9, and the rolling bearing 5-10 are formed. The hydraulic motor 5-1 is connected to the chassis support frame 6-9 in the crawler mechanism 6 by bolts, and the brake lock 5-2 passes through the output shaft of the hydraulic motor 5-1 and is bolted to the chassis support frame 6-9. The hydraulic motor gear 5-3 is firmly connected to the output shaft of the hydraulic motor 5-1 through a flat key. The shaft I large gear 5-4 and the shaft II large gear 5-7 are respectively splined with the shaft I5-5 and the shaft II5-8. Connection, the shaft I pinion 5-6 is connected to the shaft I5-5 through the flat key, and the shaft I5-5 and the shaft II5-8 are both supported by the rolling bearing 5-10 and are rotated, and the hydraulic motor gear 5-3 and the shaft I are large. The gear 5-4, the shaft I pinion 5-6 and the shaft II large gear 5-7, the runner 5-9 and the outer ring 4-3 in the slewing support 4 are properly engaged with each other.

As shown in FIG. 2, the shearer upper frame assembly 2 is mainly composed of a drive frame 2-1, a transmission case 2-2, a stabilizer 2-3, a side frame 2-4, a hydraulic motor 2-5, and a air cylinder 2 -6, auger drill pipe 2-7, spiral drill bit 2-8. The hydraulic motors 2-5 are two, symmetrically disposed on the driving frame 2-1, and the side frames 2-4 are symmetrically disposed on both sides of the driving frame 2-1, and the output shafts of the two hydraulic motors 2-5 are respectively connected Spiral drill pipe 2-7, two spiral drill pipes 2-7 are provided with stabilizer 2-3, two spiral drill pipes 2-7 are provided with air cylinder 2-6, and transmission box 2-2 is provided with spiral At the front of the drill pipe 2-7, the auger bit 2-8 is placed on the auger shaft 2-7.

As shown in FIG. 3 and FIG. 4, the shearer base 3 is mainly composed of a chassis 3-7, an intermediate support frame 3-8, a lateral support frame 3-1, a front support frame 3-2, and a fixed frame 3. -3, the fixed frame 3-4, the rear support frame 3-5 and the fixed frame 3-6. The bottom frame 3-7 is embedded in the lower end groove of the intermediate support frame 3-8 through the upper end protruding post, thereby ensuring a stable connection between the two sides, the lateral support frame 3-1, the forward support frame 3-2 and the rear support The frame 3-5 is firmly connected to the intermediate support frame 3-8 by welding, and the fixing frame 3-3 and the fixing frame 3-4 are all fastened to the lateral support frame 3-1 by bolts, and the fixing frame 3-6 is also passed. The bolts are fastened to the rear support frame 3-5. The fixing frame 3-3 and the fixing frame 3-4 have the function of reinforcing support.

As shown in FIG. 5 and FIG. 6, the slewing support device 4 is mainly composed of an inner ring 4-1, an outer ring 4-3 and a rolling ball 4-2, and the outer ring 4-3 end face and the shearer base 3 The bottom frame 3-7 is uniformly provided with bolt connection holes 15 on the same axis, and the end faces of the inner ring 4-1 and the chassis support frame 6-9 and the rotary reduction box wall 11 in the crawler traveling mechanism 6 are evenly distributed. a bolt connection hole 2 in the same axis; the shearer base 3 passes through a hexagon socket bolt 7 through the bolt connection hole 15, a gasket 8, a gasket 2, a nut 13 and an outer ring 4 3 fasten the connection. The chassis support frame 6-9, the rotary reduction gear box wall 11 and the inner ring 4-1 pass through the hexagonal bolts 9 through the bolt connection holes 26, the spacers 8, and the spacers 3. 12, the nut two 14 fastening connection.

7 and 8, the crawler running mechanism 6 is mainly composed of a crawler belt 6-1, a drive wheel 6-2, a tensioning device 6-3, a guide wheel 6-4, a buffer spring 6-5, and a roller. 6-6, the connecting frame 6-7, the driving motor 6-8, the chassis support frame 6-9 and the side walls 6-10. The driving wheel 6-2 and the guiding wheel 6-4 are respectively reliably connected to the central axes of the two ends of the connecting frame 6-7 through the rolling bearings in the center hole thereof, and the crawler belt 6-1 is engaged with the driving wheel 6-2 and guided by the meshing manner. On the teeth of the wheel 6-4, the tensioning device 6-3 is connected to both ends of the central shaft of the driving wheel 6-2 by bolts, and the buffer spring 6-5 is sleeved in the tensioning device 6-3, and the supporting roller 6- 6 is firmly connected to the central shaft of the connecting frame 6-7 through the rolling bearing in the center hole thereof, and meshes with the crawler belt 6-1, and the driving motor 6-8 is bolted to the connecting frame 6-7, and the protruding shaft Connected to the central shaft of the drive wheel 6-2, the chassis support frame 6-9 is securely coupled to the connector frame 6-7 by bolts, and the side walls 6-10 are welded to the chassis support frame 6-10. Wherein, the tensioning device 6-3 has the function of adjusting the crawler belt 6-1 to be in a proper tensioning force, the driving motor 6-8 has the function of providing power, and the side wall 6-10 has the function of preventing the large piece of coal from entering the rotary reduction gear box. effect.

As shown in FIG. 9, in the case where there are thin coal seams on both sides of the roadway 18, after the thin coal seam A side 17 is mined, the drill shearer 1 is rotated in situ by the swing support device 4 to adjust the orientation of the auger, The thin coal seam B side 19 is mined, thereby greatly improving the mining efficiency and reducing the coal mining time.

As shown in FIG. 10, when the drill type shearer 1 encounters the ballast 20 on the way from the main roadway to the working surface, the spiral bit can be rotated 360° by means of the slewing support device 4, thereby easily passing the switch 20 to the designated work. In the face, coal mining operations are carried out on the thin coal seam A side 17 and the thin coal seam B side 19, which greatly saves equipment moving time.

The use method of the crawler walking self-rotating two-way drilling type coal mining machine of the invention: the use method of the crawler walking self-rotating two-way drilling type coal mining machine: the drilling type shearing machine 1 is arranged in the roadway 18, first to the side of the thin coal seam After the mining operation is completed, after the mining operation of the thin coal seam on the side is completed, and after the recovery operation of the components such as the hydraulic propulsion member and the supporting hydraulic cylinder is completed, the hydraulic motor 5-1 is started through the panel button on the control cabinet, and the hydraulic motor 5-1 passes through The output shaft transmits torque to the hydraulic motor gear 5-3, and then through the shaft I large gear 5-4, the shaft I5-5, the shaft I pinion 5-6, the shaft II large gear 5-7, the shaft II5-8 The high-speed small torque is converted into a low-speed large torque and transmitted to the runner 5-9, and the runner 5-9 drives the outer ring 4-3 in the slewing support device 4 through the gear meshing, and then connects the shearer The underframe 3-1 of the base 3 and the hexagonal bolt 7 of the outer ring 4-3 finally transmit torque to the shearer base 3, achieving 360° rotation of the drill shearer, when the rotary support device 4 rotates After mining the position of the thin coal seam on the other side, the brake locker 5-2 is locked by the control panel to lock the hydraulic motor 5-1 output shaft Preventing the spiral drill bit on the shearer upper frame assembly 2 from turning over or causing the turning phenomenon during the coal mining operation, and mining the thin coal seam on the other side, thereby realizing the auger drilling in the same place and improving the coal mining efficiency. Reduce equipment transfer and mining time.

When the drill shearer 1 encounters the ballast 20 on the way from the main roadway to the working surface, by controlling the slewing support device 4, the spiral drill bit rotates in the direction of the roadway, thereby achieving fast and easy passage through the switch 20, which greatly saves equipment movement time. And then quickly carry out coal mining operations.

Claims

A crawler walking self-rotating two-way drilling type coal mining machine comprises a shearer upper frame assembly (2) and a shearer base (3) disposed under the shearer upper frame assembly (2), characterized in that: The shearer support (4) is arranged under the shearer base (3), and the crawler support device (4) is provided with a crawler travel mechanism (6), and the crawler travel mechanism (6) is provided with a swing support a transmission (5) connected to the device (4);

The slewing support device (4) comprises an inner ring (4-1), an outer ring (4-3) on the inner ring (4-1), an inner ring (4-1) and an outer ring (4- 3) Between the ball body (4-2), the outer ring (4-3) is fixed by bolts and the shearer base (3), and the inner ring (4-1) is bolted and The crawler walking mechanism (6) is fixed together;

The crawler running mechanism (6) includes a crawler belt (6-1), a drive wheel (6-2), a tensioning device (6-3), a guide wheel (6-4), and a tensioning device (6-5). , roller (6-6), connecting frame (6-7), drive motor (6-8), chassis support frame (6-9) and side wall (6-10); said drive wheel (6 -2) and the guide wheel (6-4) are connected to the central shaft at both ends of the connecting frame (6-7) through a rolling bearing in the center hole thereof, and the crawler belt (6-1) is engaged with the driving wheel (6-2) And the teeth of the guide wheel (6-4), the tensioning device (6-3) is connected to both ends of the central shaft of the driving wheel (6-2) by bolts, the supporting wheel (6-6) It is connected to the central shaft of the connecting frame (6-7) through a rolling bearing in its central hole and meshes with the crawler belt (6-1), and the driving motor (6-8) is bolted to the connecting frame (6- 7) The extension shaft is connected to the central shaft of the driving wheel (6-2), and the chassis support frame (6-9) is bolted to the connecting frame (6-7), the side wall (6) -10) welded to the connecting frame (6-7);

The transmission device (5) includes a hydraulic motor (5-1), a brake lock (5-2), a hydraulic motor gear (5-3), a shaft I large gear (5-4), and an axis I ( 5-5), shaft I pinion (5-6), shaft II large gear (5-7), shaft II (5-8), runner (5-9), rolling bearing (5-10); The hydraulic motor (5-1) is connected to the chassis support frame (6-9) in the crawler running mechanism (6) by bolts, and the brake lock (5-2) is output through the hydraulic motor (5-1). The shaft is connected to the chassis support frame (6-9) by bolts, and the hydraulic motor gear (5-3) is firmly connected to the output shaft of the hydraulic motor (5-1) by a flat key, the shaft I large gear (5- 4) The shaft II large gear (5-7) is connected to the shaft I (5-5) and the shaft II (5-8) through the spline, and the shaft I pinion (5-6) passes the flat key and the shaft I ( 5-5) Connection, shaft I (5-5), shaft II (5-8) are supported by rolling bearings (5-10) and make rotary motion, hydraulic motor gear (5-3) and shaft I large gear (5 -4), shaft I pinion (5-6) and shaft II large gear (5-7), runner (5-9) and slewing support device (4) middle and outer ring (4-3) correctly mesh with each other .
A track walking self-rotating two-way drilling type shearer according to claim 1, characterized in that: the outer side of the slewing support device (4) is provided with a side wall for preventing large pieces of coal from entering the rotary reduction gear box. (6-10).
The method for using a crawler-type self-rotating two-way drill type shearer according to claim 1, wherein the driller is arranged in the roadway, and the mining operation is first performed on one side of the thin coal seam. After the mining operation of the side thin coal seam is completed, the hydraulic motor (5-1) is activated by the control panel button, and the hydraulic motor (5-1) transmits the torque to the hydraulic motor gear (5-3) through its output shaft, and then passes through the shaft in turn. I large gear (5-4), shaft I (5-5), shaft I pinion (5- 6), shaft II large gear (5-7), shaft II (5-8), the high speed small torque is converted into low speed and large torque is transmitted to the runner (5-9), the runner (5-9) The outer ring in the slewing support device (4) is rotated by the gear teeth, and then the hexagonal bolts of the shearer base (3) and the outer ring (4-3) are connected to finally transmit the torque to the shearer base. (3) On, the 360° rotation of the drill shearer is realized, and when the rotary support device (4) is rotated to the position of mining the thin coal seam on the other side, the lock of the brake lock (5-2) is controlled by the control panel. The output shaft of the dead hydraulic motor (5-1) prevents the spiral drill bit on the shearer upper frame assembly (2) from over-rotating or the turning phenomenon occurs during the coal mining operation, and the mining operation on the other side of the thin coal seam is realized, thereby realizing the spiral The rig uses two-way coal mining at the same location to improve coal mining efficiency and reduce equipment transfer and production time.