Automatic rod adding mechanism

Abstract

The utility model relates to the technical field of mining engineering machinery, in particular to an automatic rod adding mechanism which comprises a front support, a rear support, a rotating shaft, a rotating driving piece, a rod library chuck set, a mechanical arm set, a mechanical arm rotating shaft and a swing driving piece. The rotating shaft penetrates through the front support and is connected to the rotating driving piece, the rotating driving piece drives the rotating shaft to rotate, the rod library chuck set is fixed to the rotating shaft and located between the front support and the rear support, and the mechanical arm rotating shaft is rotatably connected to the front support and the rear support. The mechanical arm rotating shaft penetrates through the front support and is connected to the swing driving piece. The mining rod adding mechanism solves the problems that in the prior art, when a mining rod adding mechanism is adopted for medium-deep hole construction, the rod storage capacity of a rod warehouse is small, the structure is loose, the action precision is poor, and dependence on operators is high, the mining rod adding mechanism is suitable for medium-deep hole drilling, the construction continuous time is prolonged, and then the construction operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining engineering machinery, in particular to an automatic rod adding mechanism. Background Art

[0002] Mining drill rigs are a type of engineering machinery used for drilling holes in mine tunnels. The primary construction method is drill-and-blast, where several holes are drilled in the blastholes and then explosives are inserted to complete the blasting. Due to the confined space in mine tunnels, the length of drill rods in mining drill rigs is limited. For medium- to deep-hole drilling, multiple drill rods are required, which are then added and removed after drilling is complete. Therefore, mining drill rigs require automatic rod loading and unloading mechanisms to store drill rods and eliminate manual labor.

[0003] At present, most drill rod warehouses are single-layer structures with a small capacity for disposable drill rods, especially mine drill rod warehouses, where the length of a single drill rod is short. During the deep hole construction process, manual assistance is required to add drill rods to the warehouse, which interrupts the continuity of construction and greatly reduces construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic rod adding mechanism to solve the technical problems of the prior art in which the rod storage capacity of the rod adding mechanism for mining is small, the structure is loose, the movement accuracy is poor, and the dependence on the operator is high when the rod adding mechanism for mining is used for medium and deep hole construction. The specific technical solution is as follows:

[0005] The utility model provides an automatic rod adding mechanism, comprising a front bracket, a rear bracket, a rotating shaft, a rotating drive component, a rod magazine chuck group, a manipulator group, a manipulator rotating shaft and a swinging drive component, wherein the rotating shaft is rotatably connected to the front bracket and the rear bracket, the rotating shaft passes through the front bracket and is connected to the rotating drive component, the rotating drive component drives the rotating shaft to rotate, the rod magazine chuck group is fixed on the rotating shaft and is located between the front bracket and the rear bracket, the manipulator rotating shaft is rotatably connected to the front bracket and the rear bracket, the manipulator rotating shaft passes through the front bracket and is connected to the swinging drive component, the swinging drive component drives the manipulator rotating shaft to rotate, the manipulator group is fixed on the manipulator rotating shaft, and the rotating shaft is parallel to the manipulator rotating shaft.

[0006] A further improvement of the automatic rod adding mechanism of the present invention is that a chuck mounting plate is sleeved on the rotating shaft, the chuck mounting plate is located between the rod library chuck group and the rear bracket, and the chuck mounting plate is fixed to the rear bracket, and a sensor is fixed on the chuck mounting plate.

[0007] A further improvement of the automatic rod adding mechanism of the present invention is that a first baffle is sleeved on the rotating shaft, the first baffle is located between the chuck mounting plate and the rod library chuck assembly, and the first baffle is fixed to the chuck mounting plate.

[0008] A further improvement of the automatic rod adding mechanism of the present invention is that a proximity switch is fixed on the front bracket, a second baffle is fixed on the rotating shaft, the second baffle is located between the rod library chuck group and the front bracket, and a plurality of sensing blocks for cooperating with the proximity switch are provided on the second baffle.

[0009] A further improvement of the automatic rod adding mechanism of the present invention is that a cross bar is fixed between the front bracket and the rear bracket, and a first rod storage retaining ring and a second rod storage retaining ring are connected to the cross bar. The first rod storage retaining ring is located between the first baffle and the rod storage chuck group, and the second rod storage retaining ring is located between the second baffle and the rod storage chuck group. The opening direction of the first rod storage retaining ring and the second rod storage retaining ring is consistent with the movement direction of the manipulator.

[0010] A further improvement of the automatic rod adding mechanism of the present invention is that a rocker arm bracket is sleeved on the rotating shaft, and the rocker arm bracket is located on the side of the rear bracket away from the front bracket, and the swing driving component includes a rod adding cylinder and a swing cylinder, the rod adding cylinder is connected between the rear bracket and the rocker arm bracket, and the swing cylinder is connected between the rocker arm bracket and the manipulator rotating shaft.

[0011] A further improvement of the automatic rod adding mechanism of the present invention is that a front adjustment seat is slidingly provided on the front bracket, and the front adjustment seat is fixed in position with the front bracket by a first limit member, and a rear adjustment seat is slidingly provided on the rear bracket, and the rear adjustment seat is fixed in position with the rear bracket by a second limit member, and the manipulator shaft is rotatably connected to the front adjustment seat and the rear adjustment seat.

[0012] A further improvement of the automatic rod adding mechanism of the present invention is that the manipulator group includes at least two manipulators, the manipulator includes a hand body, a jaw and a clamping cylinder, the clamping cylinder is connected between the hand body and the jaw, and the jaw and the front end of the hand body form a space for clamping the drill rod.

[0013] A further improvement of the automatic rod adding mechanism of the present invention is that the rotating shaft includes a front connecting shaft, an intermediate rotating shaft, a rear connecting shaft and a connecting sleeve, the intermediate rotating shaft is fixed between the front connecting shaft and the rear connecting shaft, and the rotating drive member transmits torque through the connecting sleeve and is connected to the rear connecting shaft.

[0014] A further improvement of the automatic rod adding mechanism of the present invention is that the rod library chuck group comprises at least two rod library chucks, and the rod library chucks are provided with clamping plates for clamping drill rods.

[0015] The application of the technical solution of the utility model has the following beneficial effects:

[0016] This new automatic rod-adding mechanism accommodates multiple drill rods through a rod-adding chuck assembly and cooperates with a manipulator assembly to automatically grab drill rods for rod-adding operations. This solves the technical problems encountered in prior art mining rod-adding mechanisms for medium- to deep-hole construction, such as small rod storage capacity, loose structure, poor motion accuracy, and high operator dependence. The new mechanism can accommodate multiple drill rods and is suitable for medium- to deep-hole drilling, increasing construction continuity and thus improving construction efficiency. This mechanism uses a hydraulic motor and sensor to automate the rotation of the intermediate shaft and precisely control the rotation angle, allowing the manipulator to accurately retrieve rods, ensuring effective construction operations and requiring minimal operator proficiency. The mechanism features a compact structure, precise motion, a high degree of intelligence, and ease of subsequent maintenance.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a top view of the automatic rod adding mechanism of the utility model;

[0020] Figure 2 This is a front view of the automatic rod adding mechanism of the utility model;

[0021] Figure 3 This is a side view of the manipulator of the automatic rod adding mechanism of the utility model;

[0022] Figure 4 It is a three-dimensional diagram of the manipulator of the automatic rod adding mechanism of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the rod library chuck of the automatic rod adding mechanism of the utility model;

[0024] Figure 6 This is a schematic diagram of the rod storage of the rod library chuck of the automatic rod adding mechanism of the utility model;

[0025] Figure 7 This is a front view of the chuck mounting plate of the automatic rod adding mechanism of the utility model;

[0026] Figure 8 It is a three-dimensional diagram of the connection set of the automatic rod adding mechanism of the utility model.

[0027] Among them, 1. Rod adding cylinder; 2. Rocker bracket; 3. Swing cylinder; 4. Manipulator swing bracket; 5. Swing motor; 6. Rear bracket; 7. Rear connecting shaft; 8. First rod magazine retaining ring; 9. Rod magazine chuck; 10. Manipulator; 101. Clamping cylinder; 102. Jaw; 11. Cross bar; 12. Intermediate rotating shaft; 13. Front connecting shaft; 14. Front bracket; 15. Proximity switch seat; 16. Front adjustment seat; 17. Second baffle; 18. Manipulator rotating shaft; 19. First baffle; 20. Chuck mounting plate; 21. Rear adjustment seat; 22. Screw; 23. Connecting set; 24. Second rod magazine retaining ring; 25. Rod; 26. Sensor. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] See also Figures 1 to 7 As shown, an automatic rod adding mechanism includes a front bracket 14, a rear bracket 6, a rotating shaft, a rotating drive member, a rod magazine chuck group, a manipulator group, a manipulator rotating shaft 18 and a swinging drive member, the rotating shaft is rotatably connected to the front bracket 14 and the rear bracket 6, the rotating shaft passes through the front bracket 14 and is connected to the rotating drive member, the rotating drive member drives the rotating shaft to rotate, the rod magazine chuck group is fixed on the rotating shaft and is located between the front bracket 14 and the rear bracket 6, the manipulator rotating shaft 18 is rotatably connected to the front bracket 14 and the rear bracket 6, the manipulator rotating shaft 18 passes through the front bracket 14 and is connected to the swinging drive member, the swinging drive member drives the manipulator rotating shaft 18 to rotate, the manipulator group is fixed on the manipulator rotating shaft 18, and the rotating shaft is parallel to the manipulator rotating shaft 18.

[0030] Specifically, such as Figure 5 and Figure 6 As shown, the rod storage chucks 9 in this rod storage assembly each feature a three-tiered rod storage structure, capable of accommodating up to 24 drill rods. This three-tiered structure provides storage capacity for three inner, middle, and outer rings, allowing for greater storage of rods 25. The rotary drive element is a swing motor 5. The front and rear brackets 14 and 6 are approximately circular in shape, with their bases bolted to the propulsion beam of the mining drill vehicle.

[0031] Preferably, Figure 1 、 Figure 6 and Figure 7As shown, a chuck mounting plate 20 is sleeved on the rotating shaft. This chuck mounting plate 20 is located between the rod magazine chuck assembly and the rear support 6 and is fixed to the rear support 6. The chuck mounting plate 20 has an arcuate slot for securing sensors 26. The slot's orientation corresponds to the three layers of drill rod storage on the rod magazine chuck 20. Three sensors 26 are spaced along the slot to monitor the number of drill rods in the same orientation, facilitating the control mechanism's rod adding operation. The chuck mounting plate 20 and the first baffle 19 are connected to the rear support 6 via bolts.

[0032] Preferably, a first baffle 19 is sleeved on the rotating shaft, and is located between the chuck mounting plate 20 and the rod magazine chuck assembly, and the first baffle 19 is fixed to the chuck mounting plate 20. The first baffle 19 is made of rubber material and is used to reduce vibration caused by drill rod impact. The first baffle 19 cooperates with the second baffle 17 to limit the axial displacement of the drill rod.

[0033] Preferably, a proximity switch is secured to the front bracket 14. A second baffle 17 is secured to the rotating shaft, positioned between the rod magazine chuck assembly and the front bracket 14. Multiple sensing blocks are provided on the second baffle 17 to engage the proximity switch. The second baffle 17 is bolted to the flange of the intermediate rotating shaft 12. A proximity switch holder 15 is provided on the front bracket 14 for mounting the proximity switch. In this embodiment, twelve sensing blocks are provided, corresponding to the twelve positions of the rod magazine chuck 19, to precisely control the rotation of the swing motor 5 and achieve a precise rotation angle.

[0034] Preferably, a cross bar 11 is fixed between the front bracket 14 and the rear bracket 6, and the cross bar 11 is connected to a first rod depot retaining ring 8 and a second rod depot retaining ring 24. The first rod depot retaining ring 8 is located between the first baffle 19 and the rod depot chuck assembly, and the second rod depot retaining ring 24 is located between the second baffle 17 and the rod depot chuck assembly. The opening direction of the first rod depot retaining ring 8 and the second rod depot retaining ring 24 is consistent with the movement direction of the manipulator 10 to prevent interference between the two. In this embodiment, the number of cross bars 11 is four, and the four cross bars 11 are arranged at intervals along the circumferential direction to increase the overall strength and stability of the automatic rod adding mechanism. The first rod depot retaining ring 8 and the second rod depot retaining ring 24 can increase the stability of the entire rod adding mechanism.

[0035] Preferably, a rocker bracket 2 is sleeved on the rotating shaft, and the rocker bracket 2 is located on the side of the rear bracket 6 away from the front bracket 14. The swing drive component includes a rod adding cylinder 1 and a swing cylinder 3. The rod adding cylinder 1 is connected between the rear bracket 6 and the rocker bracket 2, and the swing cylinder 3 is connected between the rocker bracket 2 and the manipulator shaft 18. Through the telescopic movement of the rod adding cylinder 1 and the swing cylinder 3, the manipulator group can achieve three working positions of synchronously taking the rod, adding the rod and avoiding. The rear end of the manipulator shaft 18 passes through the rear bracket 6 and is fixed with a manipulator swing bracket 4. One end of the swing cylinder 3 is hinged to the manipulator swing bracket 4, and the manipulator shaft 18 is driven to rotate by the swing cylinder 3. Both ends of the rod adding cylinder 1 and the swing cylinder 3 are connected in a hinged manner.

[0036] Preferably, a front adjustment seat 16 is slidably provided on the front bracket 14, and the front adjustment seat 16 is fixed in position with the front bracket 14 by a first limit member. A rear adjustment seat 21 is slidably provided on the rear bracket 6, and the rear adjustment seat 21 is fixed in position with the rear bracket 6 by a second limit member. The manipulator shaft 18 is rotatably connected to the front adjustment seat 16 and the rear adjustment seat 21. In this embodiment, the first limit member and the second limit member are both a screw rod 22. The front bracket 14 is provided with a first fixed plate for the screw rod 22 to pass vertically, and one end of the screw rod 22 is fixed to the front adjustment seat 16. The rear bracket 6 is provided with a second fixed plate for the screw rod 22 to pass vertically, and one end of the screw rod 22 is fixed to the rear adjustment seat 21. Nuts are screwed on both sides of the first fixed plate or the second fixed plate on the screw rod 22. By adjusting the penetration length of the screw rod 22 and tightening it with nuts, the relative position of the manipulator shaft 18 can be adjusted. The manipulator 10 is fixed to the manipulator shaft 18 by bolts, thereby realizing the adjustment of the position of the manipulator 10.

[0037] Preferably, the manipulator assembly includes at least two manipulators 10, each manipulator 10 comprising a hand body, jaws 102, and a clamping cylinder 101. The clamping cylinder 101 is connected between the hand body and the jaws 102. The jaws 102 and the front end of the hand body form a space for clamping a drill rod. The clamping cylinder 101 drives the jaws 102 to move, thereby enabling the drill rod to be clamped.

[0038] Preferably, Figure 1 、 Figure 7 and Figure 8As shown, the rotary shaft comprises a front connecting shaft 13, an intermediate rotating shaft 12, a rear connecting shaft 7, and a connecting sleeve 23. The intermediate rotating shaft 12 is fixed between the front connecting shaft 13 and the rear connecting shaft 7. The rotary drive element transmits torque through the connecting sleeve 23 and is connected to the rear connecting shaft 7. The swing motor 5 drives the rear connecting shaft 7 to rotate, driving the intermediate rotating shaft 12, thereby rotating the rod storage chuck 9, allowing the manipulator assembly to clamp the drill rods on the rod storage chuck 9. The connecting sleeve 23 is a connecting flange. The rear connecting shaft 7 and the connecting sleeve 23 transmit driving torque via a flat key. The inner side of the connecting sleeve 23 is provided with a keyway that fits the flat key.

[0039] Preferably, the rod library chuck assembly includes at least two rod library chucks 9, and the rod library chucks 9 are provided with a clamping plate for clamping the drill rod. In this embodiment, the clamping plate adopts a butterfly rubber clamping plate, and all drill rods are fixed with the clamping plate. When wear occurs, the butterfly rubber clamping plate can be directly replaced.

[0040] The following are the operating methods of the three stations:

[0041] 1. Rod removal station:

[0042] Place the drill rods in the rod storage chuck 9 in advance, which can accommodate up to 24 drill rods. The second baffle 17 and the chuck mounting plate 20 are used to limit the axial displacement of the drill rods, and the first baffle 19 in front of the chuck mounting plate 20 is used to reduce vibration caused by the impact of the drill rods. The rod adding mechanism is connected to the propulsion beam of the mining drill vehicle through the threaded holes on the rear bracket 6 and the front bracket 14. The rod adding cylinder 1 is connected to the swing cylinder 3 through the rocker bracket 2. The swing cylinder 3 is connected to the manipulator shaft 18 through the manipulator swing bracket 4. The manipulator 10 is fixed to the manipulator shaft 18 by bolts. Figure 3 As shown, the clamping cylinder 101 of the manipulator 10 is fully retracted to open the jaws 102 of the manipulator 10. The rod adding cylinder 1 and the swing cylinder 3 are fully extended to rotate the manipulator shaft 18, so that the two manipulators 10 rotate synchronously to the rod retrieval position. The positions of the front adjustment seat 16 and the rear adjustment seat 21 are adjusted by the screw rod 22 behind the two, and the position of the manipulator shaft 18 is finally adjusted to make the rod retrieval position of the manipulator 10 more precise. When the manipulator 10 moves to the rod retrieval position, the drill rod enters the jaws 102, and the clamping cylinder 101 of the manipulator 10 is extended to retract the jaws 102 to clamp the drill rod.

[0043] The rear connecting shaft 7 transmits driving torque to the connecting assembly 23 via a flat key, and the connecting assembly 23 is bolted to the swing motor 5. When the sensor 26 on the chuck mounting plate 20 detects that the manipulator 10 has completed gripping all drill rods in the same position within the rod magazine chuck 9, a signal is transmitted to the rotary drive element (swing motor 5), causing it to rotate and drive the connecting assembly 23, which in turn transmits torque to the rear connecting shaft 7 via the flat key. The rear connecting shaft 7 is bolted to the intermediate rotating shaft 12. Therefore, the rotation of the swing motor 5 can drive the intermediate rotating shaft 12 and the rod magazine chuck assembly fixed to the intermediate rotating shaft 12 to rotate.

[0044] The second baffle 17 is fixed to the middle rotating shaft 12 by bolts, and sensing blocks are evenly distributed on the second baffle 17. The proximity switch seat 15 is welded to the front bracket 14. The position of the sensing block is detected by the proximity switch, so that the swing motor 5 only rotates 30° each time, corresponding to the various positions of the drill rod in the rod library chuck group, thereby realizing the precise and intelligent rod retrieval of the manipulator 10.

[0045] 2. Rod adding station:

[0046] After the manipulator 10 completes the rod removal, the rod adding cylinder 1 and the clamping cylinder 101 of the manipulator 10 remain in the same state, and the swing cylinder 3 is fully retracted to make the two manipulators 10 rotate synchronously to the drill rod drilling rig position. After the drill rod connection is completed, the clamping cylinder 101 of the manipulator 10 is retracted, and the jaws 102 of the manipulator 10 are released to complete the rod addition.

[0047] 3. Avoidance workstation:

[0048] After the manipulator 10 completes the rod addition, the rod adding cylinder 1 is fully retracted to make the two manipulators 10 rotate synchronously to the avoidance position. The drilling rig completes drilling, and the manipulator 10 enters the next three-position cycle of taking out the rod, adding the rod, and avoiding until the construction operation is completed.

[0049] The present invention's automatic rod-adding mechanism accommodates multiple drill rods through a rod-stock chuck assembly and cooperates with a manipulator assembly to automatically grab drill rods for rod-adding operations. This solves the technical problems of the prior art, such as the small rod storage capacity, loose structure, poor movement accuracy, and strong operator dependence when using mining rod-adding mechanisms for medium-deep hole construction. The present invention can accommodate multiple drill rods and is suitable for medium-deep drilling, thereby increasing construction continuity and improving construction efficiency. The mechanism achieves automated rotation of the intermediate shaft 12 and precise rotation angles through a hydraulic motor and sensor 26, allowing the manipulator 10 to accurately retrieve rods, ensuring construction results and requiring low operator proficiency. The mechanism has a compact structure, precise movements, a high degree of intelligence, and is easy to maintain later.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic rod adding mechanism, characterized in that: The invention comprises a front bracket (14), a rear bracket (6), a rotating shaft, a rotating driving member, a rod magazine chuck group, a manipulator group, a manipulator rotating shaft (18) and a swing driving member, wherein the rotating shaft is rotatably connected to the front bracket (14) and the rear bracket (6), the rotating shaft passes through the front bracket (14) and is connected to the rotating driving member, and the rotating driving member drives the rotating shaft to rotate, the rod magazine chuck group is fixed on the rotating shaft and is located between the front bracket (14) and the rear bracket (6), the manipulator rotating shaft (18) is rotatably connected to the front bracket (14) and the rear bracket (6), the manipulator rotating shaft (18) passes through the front bracket (14) and is connected to the swing driving member, and the swing driving member drives the manipulator rotating shaft (18) to rotate, the manipulator group is fixed on the manipulator rotating shaft (18), and the rotating shaft is parallel to the manipulator rotating shaft (18); A chuck mounting plate (20) is sleeved on the rotating shaft, the chuck mounting plate (20) is located between the rod library chuck group and the rear bracket (6), and the chuck mounting plate (20) is fixed to the rear bracket (6), and a sensor (26) is fixed on the chuck mounting plate (20).

2. The automatic rod adding mechanism according to claim 1, characterized in that: A first baffle (19) is sleeved on the rotating shaft. The first baffle (19) is located between the chuck mounting plate (20) and the rod library chuck assembly, and the first baffle (19) is fixed to the chuck mounting plate (20).

3. The automatic rod adding mechanism according to claim 2, characterized in that: A proximity switch is fixed on the front bracket (14), a second baffle (17) is fixed on the rotating shaft, the second baffle (17) is located between the rod library chuck assembly and the front bracket (14), and a plurality of induction blocks for cooperating with the proximity switch are provided on the second baffle (17).

4. The automatic rod adding mechanism according to claim 3, characterized in that: A cross bar (11) is fixed between the front bracket (14) and the rear bracket (6); a first rod storage retaining ring (8) and a second rod storage retaining ring (24) are connected to the cross bar (11); the first rod storage retaining ring (8) is located between the first baffle (19) and the rod storage chuck group; the second rod storage retaining ring (24) is located between the second baffle (17) and the rod storage chuck group; the opening direction of the first rod storage retaining ring (8) and the second rod storage retaining ring (24) is consistent with the movement direction of the manipulator (10).

5. The automatic rod adding mechanism according to claim 1, characterized in that: A rocker arm bracket (2) is sleeved on the rotating shaft, and the rocker arm bracket (2) is located on a side of the rear bracket (6) away from the front bracket (14); the swing driving component includes a rod-adding cylinder (1) and a swing cylinder (3); the rod-adding cylinder (1) is connected between the rear bracket (6) and the rocker arm bracket (2); and the swing cylinder (3) is connected between the rocker arm bracket (2) and the manipulator rotating shaft (18).

6. The automatic rod adding mechanism according to claim 1, characterized in that: A front adjustment seat (16) is slidably provided on the front bracket (14), and the front adjustment seat (16) is fixed in position with the front bracket (14) through a first limiting member. A rear adjustment seat (21) is slidably provided on the rear bracket (6), and the rear adjustment seat (21) is fixed in position with the rear bracket (6) through a second limiting member. The manipulator shaft (18) is rotatably connected to the front adjustment seat (16) and the rear adjustment seat (21).

7. The automatic rod adding mechanism according to claim 1, characterized in that: The manipulator group comprises at least two manipulators (10), wherein the manipulator (10) comprises a hand body, a jaw (102) and a clamping cylinder (101), wherein the clamping cylinder (101) is connected between the hand body and the jaw (102), and the jaw (102) and the front end of the hand body form a space for clamping a drill rod.

8. The automatic rod adding mechanism according to claim 1, characterized in that: The rotating shaft comprises a front connecting shaft (13), an intermediate rotating shaft (12), a rear connecting shaft (7) and a connecting sleeve (23); the intermediate rotating shaft (12) is fixed between the front connecting shaft (13) and the rear connecting shaft (7); the rotating drive member transmits torque through the connecting sleeve (23) and is connected to the rear connecting shaft (7).

9. The automatic rod adding mechanism according to claim 1, characterized in that: The rod library chuck group comprises at least two rod library chucks (9), and the rod library chucks (9) are provided with clamping plates for clamping drill rods.

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