CN108049828B - A drill pipe library that can automatically pull out rods - Google Patents

Abstract

The invention provides a drill pipe warehouse with automatic rod extraction, belonging to the technical field of drill pipe warehouses, comprising a drill pipe warehouse main body, a sliding mechanism and a rod fetching mechanism; The rod mouth is provided with a stopper; the drill rod placement plate is provided with a rod fetching space; the sliding mechanism includes a roller and a first power source arranged on the top plate of the main body of the drill pipe storehouse, a sliding frame arranged on the rod outlet, and a connecting roller and a sliding frame. The rod-taking mechanism includes a fixed frame set on the sliding frame, a rod-fetching block set on the fixed frame, a second power source set on the rod-fetching block, and a gear set on the output end of the second power source and a rack which is arranged on the fixing frame and meshes with the gear; the upper surface of the rod-taking block is recessed inward to form a V-shaped groove. The drill pipe warehouse realizes the automation of drilling pipe out of the coalbed methane well, and reduces the burden of the staff.

Description

A drill pipe library that can automatically pull out rods

technical field

The invention relates to the technical field of drill pipe magazines, in particular to a drill pipe magazine capable of automatically pulling out rods.

Background technique

At present, the development of the automation of downhole equipment in my country is relatively slow, and the use of drill pipes mostly relies on manpower. However, the downhole space is limited, the working conditions are complex and changeable, and the environment is harsh.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a drill pipe storehouse that can automatically pull out rods, so as to realize the automation of drilling rods out of coalbed methane wells and reduce the burden on staff.

The invention provides a drill pipe storehouse capable of automatically pulling out rods, which comprises a main body of the drill pipe storehouse, a sliding mechanism and a rod taking mechanism; a drill pipe placing plate is arranged on the inner wall of the main body of the drill pipe storehouse, and a drill pipe placing plate is arranged on the rod outlet port. The drill rod placement board is provided with a rod fetching gap; the sliding mechanism includes a drum set on the top plate of the main body of the drill rod storehouse and a first power source for driving the drum to rotate, which is set on the rod outlet and can The sliding frame that slides up and down and the connecting rope connecting the roller and the sliding frame; the rod-taking mechanism includes a fixed frame arranged on the sliding frame, a rod-fetching block arranged on the fixing frame, a second power source arranged on the rod-taking block, A gear set on the output end of the second power source and a rack set on the fixing frame and meshing with the gear; the upper surface of the rod-taking block is recessed inward to form a V-shaped groove, which can pass through the rod-taking gap to the drill rod The main body of the library slides inside or outside to take out the drill pipe on the drill pipe placement plate.

Further, the drill rod placement plate is inclined toward the direction of the rod outlet.

Further, after the rod fetching block slides into the main body of the drill rod magazine to the limit position, the projection of the center line of the drill rod located at the rod outlet falls in the V-shaped groove.

Further, the main body of the drill rod magazine is provided with a rod inlet port, and the bottom is provided with a caster wheel assembly; the rod inlet port and the rod outlet port are arranged oppositely; The casters on the caster and the locking plate arranged on the caster connection frame are rotated.

Further, the sliding mechanism also includes a pulley bracket arranged on the top plate of the main body of the drill pipe storehouse and a pulley that is rotatably arranged on the pulley bracket; the connecting rope is drawn out from the drum, and is connected to the sliding frame after bypassing the annular groove on the circumferential surface of the pulley. .

Further, the sliding mechanism also includes a worm gear reducer with a self-locking function; the first power source is a hydraulic motor; the input end of the worm gear reducer is connected with the output end of the hydraulic motor, and the output end and the rotating shaft of the drum pass through the coupling. connect.

Further, the sliding mechanism further includes a first guide rail disposed on the rod outlet and a first sliding block disposed on the sliding frame in sliding cooperation with the first guide rail; both ends of the first guide rail are provided with limit blocks.

Further, the sliding frame is a rectangular frame surrounded by an upper connecting rod, a lower connecting rod and two first side connecting rods; the upper connecting rod is provided with an eye bolt for connecting with the connecting rope; the two ends of the lower connecting rod are respectively It is connected with the two first side connecting rods through the corner connecting pieces; the first sliding block is fixed on the side of the two first side connecting rods facing the main body of the drill rod magazine through the first mounting plate.

Further, the rod fetching mechanism further includes a second guide rail arranged on the fixing frame and a second sliding block arranged on the rod fetching block and slidably matched with the second guide rail; both ends of the second guide rail are provided with limit blocks.

Further, the fixing frame is a rectangular frame enclosed by the inner connecting rod, the outer connecting rod and the two second side connecting rods; the two second side connecting rods are fixed on the lower connecting rod of the sliding frame through the corner connecting piece and are perpendicular to each other. The second guide rail is arranged on the upper surface of the second side connecting rod; the second sliding block is arranged on the lower surface of the rod taking block; the second power source is a deceleration motor, which is arranged on the two On the lower surface between the second side links, the output shaft is connected with the gear; the rack is arranged on the inner side of the second side links.

Compared with the prior art, the advantages of the present invention are:

Put the drill pipe into the drill pipe placing plate of the main body of the drill pipe store, and place it well. Since the rod outlet is provided with a stopper, the drill pipe is fixed on the drill pipe placing plate, and the first power source is activated to drive the drum to rotate and slide. The rack slides up and down along the rod outlet to the front of the drill rod placement plate where the drill rod is to be taken out, activates the second power source, and drives the rod removal block to slide into the main body of the rod library through the meshing of the gear rack and passes through the rod removal gap. Go to the bottom of the drill pipe to be taken out, turn off the second power source, then start the first power source, lift the sliding frame to make the rod take-out block jack up the drill pipe to be taken out, and the drill pipe to be taken out slides in along the slope of the V-shaped groove V-shaped groove, the sliding frame continues to rise until the height of the drill rod to be taken is higher than the height of the stopper, then the second power source is activated, the rod taking block slides out of the main body of the rod storehouse, and the drill rod is discharged through the gap of the rod taking out. As can be seen from the above, the drill pipe warehouse with automatic rod extraction provided by the present invention realizes the automatic extraction of drill rods in coalbed methane wells and reduces the burden on staff.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

Fig. 1 is the structural representation of the drill pipe storehouse provided by the embodiment 1 of the present invention that can automatically pull out rods;

Fig. 2 is a side view of the drill pipe magazine shown in Fig. 1 that can automatically output rods;

Fig. 3 is the top view of the drill-pipe magazine shown in Fig. 1 that can be automatically drawn out;

Fig. 4 is the structural representation of the main body of the drill pipe warehouse in the drill pipe warehouse shown in Fig. 1;

Fig. 5 is the positional relationship diagram of the drill pipe and the rod fetch block when the rod fetch block in the main body of the drill rod magazine shown in Fig. 1 slides inward to the limit position;

FIG. 6 is a schematic structural diagram of a sliding frame and a rod-taking mechanism in the drill-rod magazine shown in FIG. 1 that can automatically pull out rods.

Label: 101-drill pipe placement plate; 102-stop; 103-drill pipe storage main body top plate; 104-caster connection frame; 105-caster; 106-lock plate; 107-frame body; 108-side plate; The third mounting plate; 201-roller; 202-slide frame; 203-connecting rope; 204-pulley bracket; 205-pulley; 206-roller bracket; Motor; 210-Coupling; 211-Fifth Mounting Plate; 212-First Rail; 213-First Slider; 214-Elevating Ring Screw; 215-First Mounting Plate; 216-Sixth Mounting Plate; 301-Fixing Rack; 302-Rod Block; 303-Gear; 304-Rack; 305-Second Rail; 306-Second Slider; 307-Reduced Motor; 308-Seventh Mounting Plate; 309-Reduced Motor Mounting Frame; 310 - rack mounting plate; 400 - limit block; 500 - angle connector; 600 - drill pipe.

Detailed ways

Example 1

This embodiment provides a drill pipe magazine that can automatically pull out rods, as shown in Figures 1 to 3, including a drill pipe magazine main body, a sliding mechanism and a rod fetching mechanism; a drill pipe placement plate is provided on the inner wall of the drill pipe magazine main body 101, the rod outlet is provided with a stopper 102 corresponding to the drill rod placement plate 101 one-to-one; the drill rod placement plate 101 is provided with a rod taking space; the sliding mechanism includes a roller 201 arranged on the top plate 103 of the main body of the drill rod storehouse The first power source that drives the drum 201 to rotate, the sliding frame 202 disposed on the rod outlet and capable of sliding up and down, and the connecting rope 203 connecting the drum 201 and the sliding frame 202; , a rod fetching block 302 arranged on the fixing frame 301, a second power source arranged on the rod fetching block 302, a gear 303 arranged on the output end of the second power source, and a gear 303 arranged on the fixing frame 301 and meshing with the gear 303 The rack 304, the meshing mode of the rack and pinion drives smoothly and powerfully; the upper surface of the rod fetching block 302 is recessed inward to form a V-shaped groove, which can slide through the rod fetching gap to the inside or outside of the main body of the drill rod warehouse to take out the drill rod placement plate Drill pipe 600 on 101.

Considering the limited downhole space, in order to store more drill pipes 600 with the same occupied space, preferably, under the premise that the drill pipes 600 can be put into the drill pipe placing plate 11, two adjacent drill pipes are placed The distance between the plates 11 is as small as possible, so that more layers of drill pipe placement plates 11 can be set, and more drill pipes 600 can be placed; The distance satisfies the entry and exit of the rod fetching block 302. When fetching the drill rod 600, start from the bottom drill rod placing plate 101, and take one layer from the bottom to the top and then one layer, and take it layer by layer.

Further, as shown in FIG. 4 , the drill rod placement plate 101 is inclined toward the direction of the rod outlet. When the rod fetching block 302 takes out the drill rod 600 located at the rod outlet on the drill rod placement plate 101, the drill rod 600 behind the drill rod 600 rolls to the rod outlet to fill the vacancy under the action of its own gravity, thereby realizing the drill rod 600. The automatic filling of vacancies further reduces manual operations and reduces the burden on staff.

Further, as shown in FIG. 5 , after the rod fetching block 302 slides to the limit position (that is, the position where the rod fetching block 302 can no longer slide) into the main body of the drill rod library, the projection of the center line of the drill pipe at the rod outlet fall in the V-shaped groove to ensure that the rod fetching block 302 can take the drill rod there, and at the same time reduce the length of the fixing frame 301 along the inner and outer directions of the main body of the drill rod storehouse, so that the structure of the drill rod storehouse is more compact, save space.

Further, as shown in FIG. 4 , each layer of drill pipe placement plate 101 is divided into two plate bodies, which are respectively arranged on the opposite inner walls of the main body of the drill pipe storehouse, and a rod fetching space is formed between the two plates.

Further, a triangular reinforcing plate is provided between the lower surface of the drill pipe placing plate 101 and the inner wall of the main body of the drill pipe storehouse, so as to enhance the connection strength between the drill pipe placing plate 101 and the main body of the drill pipe storehouse, and ensure that the drill pipe 600 is placed in the main body of the drill pipe storehouse. When the drill pipe is placed on the plate 101, it is safe and reliable.

Further, the main body of the drill rod magazine is provided with a rod inlet, and the bottom is provided with a caster assembly; the rod inlet and the rod outlet are arranged oppositely; as shown in FIG. 1 , the caster assembly includes a caster connection frame 104 connected to the main body of the drill rod magazine. , Rotate the caster 105 arranged on the caster connecting frame 104 and rotate the locking plate 106 arranged on the caster connecting frame 104 . The setting of the casters 105 makes the movement of the drill pipe magazine more convenient and flexible. After moving to the designated position, the locking plate 106 is rotated to lock the casters 105 to realize the locking of the drill pipe magazine.

In this embodiment, specifically, as shown in FIGS. 1 and 4 , the main body 10 of the drill rod magazine includes a frame body 107 , a top plate 103 and a side plate 108 of the main body of the drill rod magazine; the frame body 107 is formed by connecting a plurality of connecting rods. Cuboid or cube shape, the front opening is the rod outlet, the rear opening is the rod inlet, the two sides are provided with side plates 108, and the top is provided with the top plate 103 of the main body of the drill pipe warehouse. The frame body 107 is welded by rectangular steel pipes. The drill pipe placing plate 101 , the stopper 102 , the top plate 103 of the main body of the drill pipe storehouse, the triangular reinforcing plate and the side plate 108 are all steel plates, which are welded on the frame body 107 .

Further, as shown in FIG. 1 , the caster connecting frame 104 is installed on the bottom of the frame body 107 through the third mounting plate 109 , so as to avoid adverse effects on the strength of the frame body 107 due to direct connection with the frame body 107 .

Further, as shown in FIG. 1 to FIG. 3 , the sliding mechanism also includes a pulley bracket 204 arranged on the top plate 103 of the main body of the drill pipe magazine and a pulley 205 rotatably arranged on the pulley bracket 204; It is connected with the sliding frame 202 after passing through the annular groove on the circumferential surface of the pulley 205 . The functions of the pulley 205 are: reversing the direction of the connecting rope 203; reducing the shaking of the connecting rope 203 during the sliding frame 202 up and down, ensuring the stability of the connecting rope 203; avoiding the direct bending of the connecting rope 203 from the pulley 205. The contact between the top plate 103 of the main body of the drill pipe magazine and the connecting wire 203 and the top plate 103 of the main body of the pipe magazine cause wear.

Further, the connecting rope 203 is a steel wire rope.

Specifically, the pulley bracket 204 is mounted on the top plate 103 of the main body of the drill rod magazine by screws.

Further, as shown in FIGS. 1 to 3 , the sliding mechanism includes a drum bracket 206 for installing the drum 201 and a fourth mounting plate 207 connecting the drum bracket 206 and the top plate 103 of the main body of the drill rod magazine.

Preferably, the drum 201 and the pulley 205 are located on the center line of the top plate 103 of the main body of the drill rod magazine, so that the connecting rope 203 can be located on the center line of the rod outlet.

Further, as shown in FIGS. 1 to 3 , the sliding mechanism also includes a worm gear reducer 208 with a self-locking function; the first power source is a hydraulic motor 209 ; the input end of the worm gear reducer 208 and the output of the hydraulic motor 209 The output end is connected with the rotating shaft of the drum 201 through the coupling 210 . The worm gear reducer 208 has a self-locking function to ensure that the output end of the worm gear reducer 208 will not rotate when the hydraulic motor 209 stops working, thereby ensuring that the height position of the sliding frame 202 and the rod take-off mechanism remain unchanged.

Further, as shown in FIG. 3 , the worm gear reducer 208 is mounted on the top plate 103 of the main body of the drill rod magazine through the fifth mounting plate 211 .

Further, as shown in FIG. 1 and FIG. 6 , the sliding mechanism further includes a first guide rail 212 arranged on the rod outlet and a first sliding block 213 arranged on the sliding frame 202 to slidably cooperate with the first guide rail 212; the first guide rail Both ends of the 212 are provided with limit blocks 400 to limit the limit position of the sliding frame 202 when sliding up and down. In addition to the above-mentioned methods, other ways to realize the sliding frame 202 on the rod outlet, for example, two parallel chutes are provided on the connecting rods on both sides of the rod outlet, and the sliding frame 202 is provided with protrusions matched with the chutes. Or rollers should also be within the scope of protection of this implementation.

As shown in FIG. 6 , the shape of the sliding frame 202 can be designed according to the actual situation. In this embodiment, specifically, the sliding frame 202 is a rectangle surrounded by an upper link, a lower link and two first side links. frame; the upper link is provided with eyebolts 214 for connecting with the connecting rope 203; the two ends of the lower link are respectively connected with the two first side links through the corner connectors 500; the first slider 213 is installed through the first The plate 215 is fixed on the side of the two first side connecting rods facing the main body of the drill rod magazine.

Further, as shown in FIG. 6 , the eye screw 214 is mounted on the upper link of the sliding frame 202 through the sixth mounting plate 216 .

Specifically, the corner connector 500 includes two oppositely arranged right-angled triangular plates, two rectangular plates connecting the right-angled sides of the two right-angled triangular plates, and mounting holes are provided on the rectangular plates.

Further, as shown in FIG. 6 , the rod removal mechanism further includes a second guide rail 305 provided on the fixing frame 301 and a second slider 306 provided on the rod removal block 302 and slidably matched with the second guide rail 305. The use of the block pair makes the rod fetching block 302 run with low resistance, smoothness and high precision; both ends of the second guide rail 305 are provided with limit blocks 400 to limit the limit position of the rod fetching block 302 when sliding inside and outside.

The shape of the fixing frame 301 can be designed according to the actual situation. In this embodiment, specifically, as shown in FIG. 6 , the fixing frame 301 is a rectangle surrounded by an inner link, an outer link and two second side links. frame; two second side links are fixed on the lower link of the sliding frame 202 through the corner connector 500 and are perpendicular to the plane where the sliding frame 202 is located, so as to ensure that the rod taking block 302 can be along the direction perpendicular to the plane where the sliding frame 202 is located. sliding; the second guide rail 305 is arranged on the upper surface of the second side connecting rod; the second sliding block 306 is arranged on the lower surface of the rod fetching block 302; On the lower surface between the second side links, the output shaft is connected with the gear 303; the rack 304 is arranged on the inner side of the second side links. The above arrangement realizes the dislocation arrangement of the guide rail slider pair and the gear rack pair, so as to avoid mutual influence during operation. In addition to the above arrangement, other possible dislocation arrangements, such as arranging the guide rail slider pair on the inside of the second side link, and the rack and pinion pair on the outside of the second side link, are also within the protection scope of this embodiment.

Further, as shown in FIG. 6 , a plane is provided in the middle of the V-shaped groove, and a countersunk hole is opened on the plane, and the rod block 302 is installed on the seventh mounting plate 308 through the countersunk hole. Two ends of the lower surface are respectively installed with second sliding blocks 306 .

Further, as shown in FIG. 6 , the deceleration motor 307 is mounted on the lower surface of the seventh mounting plate 308 through the deceleration motor mounting bracket 309 . The rack 304 is mounted on the inner side of the second side link through the rack mounting plate 310 .

Specifically, the sliding frame 202 and the fixing frame 301 are both aluminum profile frame structures, which are light in weight and convenient for maintenance. The aluminum profiles of the two second side links of the fixed frame 301 and the sliding frame 202 are both 60X60. The aluminum profiles of the inner link and the outer link in the fixing frame 301 are both 30X60. A reinforcing rod is also arranged between the inner connecting rod and the outer connecting rod in the fixing frame 301, and the reinforcing rod is a 30X60 aluminum profile.

Further, the drill pipe warehouse that can automatically pull out rods also includes a remote control system for controlling the opening and closing of the first power source and the second power source and checking whether the rod extraction is successful, so as to realize the remote control and free operation of the drill pipe out of the warehouse. Human control.

Example 2

This embodiment provides a drill pipe library that can automatically pull out rods. Based on the drill pipe library that can automatically pull out rods described in Embodiment 1, a drill pipe library with specific dimensions is provided.

The overall height of the main body of the drill pipe warehouse is 1500mm, and there are seven layers of drill pipe placement boards 101 inside. . The drill rods 600 are stacked on the drill rod placing plate 101, and 98 drill rods 600 can be stored.

To sum up, the present invention provides a drill pipe library that can automatically output rods, which can achieve the following beneficial effects:

(1) The drill pipe 600 is stored on the drill pipe placing plate 101 in the main body of the drill pipe warehouse, and the drill pipe 600 can be overlapped and placed, which greatly improves the space utilization efficiency of the drill pipe warehouse, and can place more quantities in a limited space The drill pipe 600 can be used for the drill pipe 600, which improves the efficiency of the downhole operation; the inclined setting of the drill pipe placement plate 101 makes full use of the gravity of the drill pipe 600, realizes automatic filling, and simplifies the mechanical structure;

(2) The core part of the rod fetching mechanism is the rod fetching block 302 with a V-shaped groove. The rod fetching block 302 has a simple structure, and the rod fetching process is convenient, safe and reliable; The inner and outer movement of the rod block 302 is driven by the guide rail slider pair and the rack and pinion pair, and the operation is stable, the resistance is small, and the precision is high.

(3) The sliding frame 202 and the fixing frame 301 are aluminum profiles, which are light in weight, easy to maintain, and low in manufacturing cost;

(4) The automatic, unmanned, and remote operation of the drill pipe library for automatic pipe extraction can save manpower and ensure the safety of the staff, and at the same time, it can improve the efficiency of downhole operations.

The above are only the embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description of the present invention, or directly or indirectly applied in other related technical fields, are the same. Included in the scope of patent protection of the present invention.

Claims (10)

1. a drill rod storehouse capable of automatically pulling out a rod, is characterized in that: comprise a drill rod storehouse main body, a sliding mechanism and a rod fetching mechanism; A drill pipe placement plate (101) is provided on the inner wall of the main body of the drill stem store, and a stopper (102) corresponding to the drill stem placement plate is provided on the outlet of the stem; The drill rod placement plate (101) is provided with a rod fetching gap; The sliding mechanism includes a drum (201) arranged on the top plate (103) of the main body of the drill rod storehouse, a first power source for driving the drum (201) to rotate, and a drum (201) arranged on the rod outlet and capable of sliding up and down. a sliding frame (202) and a connecting rope (203) connecting the drum (201) and the sliding frame (202); The rod fetching mechanism comprises a fixing frame (301) arranged on the sliding frame (202), a rod fetching block (302) arranged on the fixing frame (301), and a rod fetching block (302) arranged on the fixing frame (301) ), a gear (303) arranged on the output end of the second power source, and a rack (304) arranged on the fixing frame (301) and meshing with the gear (303); The upper surface of the rod fetching block (302) is recessed inward to form a V-shaped groove, and the rods on the drill rod placing plate (101) can be slidably taken out through the rod fetching gap to the inside or outside of the main body of the drill rod magazine. Drill pipe (600). 2 . The drill rod library with automatic rod extraction according to claim 1 , wherein the drill rod placement plate ( 101 ) is inclined toward the direction of the rod outlet. 3 . 3 . The drill pipe warehouse with automatic rod extraction according to claim 2 , wherein after the rod fetching block ( 302 ) slides into the main body of the drill pipe warehouse to a limit position, the drill pipe located at the rod exit The projection of the centerline of (600) falls within the V-groove. 4. The drill rod magazine according to claim 1, wherein the main body of the drill rod magazine is provided with a rod inlet, and the bottom is provided with a caster assembly; the rod inlet and the rod outlet are arranged opposite to each other; The caster assembly includes a caster connecting frame (104) connected with the main body of the drill rod magazine, a caster (105) rotatably arranged on the caster connecting frame (104), and a locking lock rotatably arranged on the caster connecting frame (104) plate (106). 5. The drill pipe magazine with automatic rod extraction according to any one of claims 1-4, wherein the sliding mechanism further comprises a pulley bracket (204) arranged on the top plate (103) of the main body of the drill pipe magazine and rotating the pulley (205) arranged on the pulley bracket (204); The connecting rope (203) is led out from the drum (201), bypasses the annular groove on the circumferential surface of the pulley (205), and is connected to the sliding frame (202). 6. The drill rod magazine with automatic rod extraction according to claim 5, wherein the sliding mechanism further comprises a worm gear reducer (208) with a self-locking function; The first power source is a hydraulic motor (209); The input end of the worm gear reducer (208) is connected with the output end of the hydraulic motor (209), and the output end is connected with the rotating shaft of the drum (201) through a coupling (210). 7. The drill-pipe magazine according to claim 1, characterized in that, The sliding mechanism further comprises a first guide rail (212) provided on the rod outlet and a first sliding block (213) provided on the sliding frame (202) in sliding cooperation with the first guide rail (212) ; Limiting blocks (400) are provided at both ends of the first guide rail (212). 8 . The drill rod library with automatic rod extraction according to claim 7 , wherein the sliding frame ( 202 ) is a rectangle enclosed by an upper connecting rod, a lower connecting rod and two first side connecting rods. 9 . frame; The upper link is provided with an eyebolt (214) for connecting with the connecting rope (203); Both ends of the lower connecting rod are connected with the two first side connecting rods through corner connecting pieces (500) respectively; The first sliding block (213) is fixed on the side of the two first side connecting rods facing the main body of the drill rod magazine through a first mounting plate (215). 9 . The drill rod magazine with automatic rod extraction according to claim 1 or 3 , wherein the rod fetching mechanism further comprises a second guide rail ( 305 ) arranged on the fixing frame ( 301 ) and a a second sliding block (306) on the rod-taking block (302) and slidingly matched with the second guide rail (305); Limiting blocks (400) are provided at both ends of the second guide rail (305). 10 . The drill rod library with automatic rod extraction according to claim 9 , wherein the fixing frame ( 301 ) is a rectangle surrounded by an inner connecting rod, an outer connecting rod and two second side connecting rods. 11 . frame; The two second side links are fixed on the lower links of the sliding frame (202) through the corner connectors (500) and are perpendicular to the plane where the sliding frame (202) is located; the second guide rail (305) is arranged on the upper surface of the second side link; The second sliding block (306) is arranged on the lower surface of the rod taking block; The second power source is a deceleration motor (307), which is arranged on the lower surface of the rod taking block (302) between the two second side connecting rods, and the output shaft is connected with the gear (303) ; The rack (304) is arranged on the inner side of the second side link.