CN221346838U - Hydrologic reverse circulation drill bit - Google Patents

Abstract

The utility model relates to the technical field of hydrologic cycle drilling equipment, and discloses a hydrologic cycle drill bit which comprises a first drill rod, wherein a fixed ferrule is fixedly arranged on the outer side wall of the first drill rod near the middle position, a movable ferrule penetrates through and is connected with the middle position of the inner side wall of the fixed ferrule in a sliding manner, a mounting round frame is arranged on the middle position of the inner side wall of the movable ferrule, a filter screen is arranged on the middle position of the inner side wall of the mounting round frame, and two limit sliding blocks are respectively connected with the middle positions of the inner side walls of two limit sliding grooves in a sliding manner. According to the utility model, after the plurality of first locking bolts are loosened sequentially by using the tool, the stretching block is pulled to any side, so that the movable ferrule is disassembled, the filter screen can be replaced sequentially, the operation efficiency is improved, the service life of the device is further prolonged, and the condition that a slurry pipe is blocked frequently is avoided.

Description

Hydrologic reverse circulation drill bit

Technical Field

The utility model relates to the technical field of hydrologic cycle drilling equipment, in particular to a hydrologic reverse cycle drill bit.

Background

Hydrologic cycle refers to the cyclic movement process of water on earth by means of evaporation, precipitation, runoff and the like under the action of solar radiation and gravity, and the three-state conversion property of water is that internal cause of hydrologic cycle is generated, solar radiation and gravity action are power of the process, solar radiates a large amount of heat energy to the cosmic space, about 23% of total heat reaching the earth is consumed in evaporation of water on the ocean and land surfaces, and about 577000 cubic kilometers of water enters the atmosphere by evaporation every year, returns to the ocean and land by precipitation, and reaches the troposphere top of about 11 kilometers above the ground on average in the space range of hydrologic cycle, and falls to about 1 kilometer deep below the ground on average. Water moves to and from the atmosphere, land and sea in various forms.

However, the existing equipment has the following defects that when the drilling is performed in the circulating drilling operation, mud is conveyed to a mud pipe in a drill rod through a drill bit end and is conveyed to a mud tank formed in the ground through a mud pump to be precipitated, a large amount of impurities with different size radiuses exist in the mud, when the drilling is performed for a long time, the mud pipe is easy to block, and once the drilling is performed for a long time, the blocking is relatively complicated, so that a hydrological reverse circulation drill bit is provided by a person skilled in the art to solve the problems in the prior art.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a hydrologic reverse circulation drill bit which is particularly suitable for non-rock layer operations such as mud layers, mud layers and the like, wherein slurry is conveyed to the ground through a slurry pipe, when the slurry in the slurry pipe enters the middle of the inner side wall of a first drill rod through a drilling end, larger impurities are isolated through a filter screen, the slurry conveyed to the ground is prevented from being blocked by the slurry pipe, the slurry is discharged into a slurry tank, the slurry is deposited in the slurry tank, then the slurry is reflowed into the drilling hole, hydrologic circulation operations are sequentially completed, a plurality of first locking bolts are sequentially loosened by using a tool, and a stretching block is pulled to any side, so that the movable ferrule is detached, the filter screen can be sequentially replaced, the service life of equipment is further prolonged while the operation efficiency is improved, and the condition that the slurry pipe is frequently blocked is avoided.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the hydrologic reverse circulation drill bit comprises a first drill rod, a fixed ferrule is fixedly arranged on the outer side wall of the first drill rod near the middle position, a movable ferrule penetrates through the middle position of the inner side wall of the fixed ferrule and is connected with the middle position of the two side walls of the first drill rod in a sliding mode, a circular frame is arranged on the middle position of the inner side wall of the movable ferrule, a filter screen is arranged on the middle position of the inner side wall of the circular frame, limit sliding blocks are arranged on the middle position of the upper side wall of the movable ferrule and the middle position of the lower side wall of the movable ferrule, limit sliding grooves are formed in the middle upper end of the inner side wall of the fixed ferrule and the middle lower end of the inner side wall of the fixed ferrule respectively, the two limit sliding blocks are connected with the middle positions of the inner side walls of the two limit sliding grooves in a sliding mode, a plurality of first locking bolts distributed in polar axis mode are connected with the upper side walls of the circular frame in a threaded mode respectively, the lower side walls of the first locking bolts penetrate through the upper side walls of the circular frame and are connected with the bottom positions of the fixed inner side walls of the two side walls of the movable ferrule respectively, and the two tension blocks are arranged on the middle positions of the two side walls of the movable ferrule respectively;

Through above-mentioned technical scheme, through use behind a plurality of first lock bolts of instrument loose gradually to pull tensile piece to arbitrary one side for movable lasso is dismantled, can change the filter screen in proper order, when improving the operating efficiency, further improve the life of equipment, avoided the condition that the mud pipe frequently takes place to block up.

Further, a first sealing ring is arranged in the middle of the upper side wall of the movable ferrule, and a second sealing ring is arranged in the middle of the lower side wall of the movable ferrule;

Through the technical scheme, the first sealing ring and the second sealing ring are used for sealing and connecting the joint of the movable ferrule and the slurry pipe.

Further, a second drill rod is installed in the middle position of the lower side wall of the first drill rod, concave installation blocks are installed in the middle of the two side walls of the second drill rod and are distributed in a mirror image opposite mode, extension auxiliary rods are rotatably connected to the inner side walls of the two concave installation blocks in the middle position, second locking bolts penetrate through the middle positions of the front side walls of the two concave installation blocks and are in threaded connection with the rear side walls of the two second locking bolts, and the rear side walls of the two second locking bolts penetrate through the middle positions of the front side walls of the two extension auxiliary rods respectively and are in threaded connection with the middle positions of the inner side walls of the two concave installation blocks and are close to the rear side positions;

Through the technical scheme, the two side walls of the two extension auxiliary rods are respectively provided with the third blades distributed in the array, and the third blades play roles in expanding drilling and loosening the soil during drilling.

Further, support rods are arranged at the positions close to the bottoms in the middle of the inner side walls of the two extension auxiliary rods, third locking bolts penetrate through and are rotationally connected to the positions close to the lower ends in the middle of the front side walls of the two extension auxiliary rods, the rear side walls of the two third locking bolts penetrate through the positions close to one side in the middle of the front side walls of the two support rods, the front side walls of the two support rods and the positions close to the other side in the middle of the inner side walls of the two extension auxiliary rods respectively, welding blocks are respectively arranged on one side wall and the other side wall of the two support rods, one side wall and the other side wall of the two welding blocks are respectively arranged at the positions close to the middle of the two side walls of the second drill rod, and a plurality of third blades distributed in arrays are respectively arranged on one side wall and the other side wall of the two extension auxiliary rods;

Through the technical scheme, the third blade is used for performing secondary auxiliary scarification operation;

Further, a drill bit end is arranged on the lower side wall of the second drill rod, a drill plate is fixedly arranged at the position close to the lower end in the middle of the outer side wall of the drill bit end, a plurality of first blades distributed in polar axis are arranged on the lower side wall of the drill plate, and a plurality of second blades distributed in polar axis are arranged at the position close to the outer side in the middle of the lower side wall of the drill bit end;

Through the technical scheme, when drilling, the first blades are contacted with hydrogeology through the second blades, the rotation is set up under the action of the drilling machine, and the first blades distributed through a plurality of polar axes arranged on the lower side wall of the drilling disc and the third blades distributed in a plurality of arrays arranged on the two side walls of the two extension auxiliary rods assist in drilling.

Further, the first blade, the second blade and the third blade are diamond cone-shaped composite sheets;

through the technical scheme, the guide effect can be achieved, the problem of drilling deflection is solved, the material is wear-resistant and not easy to damage, and the cost is saved.

Further, a conveying drill rod is arranged in the middle of the upper side wall of the first drill rod, a threaded sleeve is arranged on the upper side wall of the conveying drill rod, and a threaded opening is formed in the middle of the upper side wall of the threaded sleeve;

Through above-mentioned technical scheme, the screw thread mouth of seting up through the lateral wall intermediate position on the thread bush is with the drill bit integral erection at hydrologic cycle rig's output.

Further, slurry pipes are arranged on the inner side walls of the conveying drill rod, the first drill rod, the second drill rod and the drill bit end, and the four slurry pipes are connected in sequence;

Through the technical scheme, the mud in the hydrogeology is pumped by the mud pump in the drilling machine through the mud pipe, and is conveyed to the ground through the mud pipe.

The utility model has the following beneficial effects:

1. According to the utility model, after the plurality of first locking bolts are loosened sequentially by using the tool, the stretching block is pulled to any side, so that the movable ferrule is disassembled, the filter screen can be replaced sequentially, the operation efficiency is improved, the service life of the device is further prolonged, and the condition that a slurry pipe is blocked frequently is avoided.

2. According to the utility model, the mud is conveyed to the ground through the mud pipe, when the mud in the mud pipe enters the middle of the inner side wall of the first drill rod through the drilling end, larger impurities are isolated through the filter screen, the mud pipe is prevented from being blocked, the mud conveyed to the ground is discharged into the mud tank, the mud is deposited in the mud tank, and then the mud is returned to the drilling hole again, so that hydrologic cycle operation is completed sequentially.

3. According to the utility model, during drilling, the second blade is firstly contacted with hydrogeology and is opened to rotate under the action of the drilling machine, the first blade distributed by a plurality of polar shafts arranged on the lower side wall of the drilling disc and the third blade distributed by a plurality of arrays arranged on the two side walls of the two extending auxiliary rods are used for assisting in drilling, the second blade firstly loosens soil, secondly, the first blade is used for expanding the drilling radius, and the third blade is used for assisting in loosening soil again, so that the drilling efficiency is improved, and the first blade, the second blade and the third blade are all diamond conical composite sheets, so that the guiding effect can be realized, the drilling deflection is prevented, the material is not easy to damage due to wear resistance, and the cost is saved.

Drawings

FIG. 1 is a perspective view of a hydrologic reverse circulation drill bit according to the present utility model;

FIG. 2 is a schematic front cross-sectional view of a hydrologic reverse circulation drill bit according to the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 1 at A;

FIG. 4 is an enlarged schematic view at B in FIG. 2;

Fig. 5 is an enlarged schematic view at C in fig. 2.

Legend description:

1. A first drill pipe; 2. fixing the ferrule; 3. stretching the block; 4. a first locking bolt; 5. conveying the drill rod; 6. a thread sleeve; 7. a drill bit end; 8. drilling a disc; 9. a first blade; 10. a second blade; 11. a movable ferrule; 12. a threaded port; 13. a slurry pipe; 14. a limit sliding block; 15. installing a round frame; 16. a filter screen; 17. a first seal ring; 18. a second seal ring; 19. limiting sliding grooves; 20. a concave mounting block; 21. extending the auxiliary rod; 22. a third blade; 23. a third locking bolt; 24. a welding block; 25. a second locking bolt; 26. and (5) supporting the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the hydrologic reverse circulation drill bit comprises a first drill rod 1, and is characterized in that: the outside wall of first drilling rod 1 leans on intermediate position fixed mounting to have fixed lasso 2, the inside wall intermediate position of fixed lasso 2 runs through and sliding connection has movable lasso 11, movable lasso 11 runs through and sliding connection is in the both sides wall intermediate position of first drilling rod 1, install round frame 15 in the inside wall intermediate position of movable lasso 11, filter screen 16 is installed to the inside wall intermediate position of installation round frame 15, the last lateral wall intermediate position of movable lasso 11 is leaned on the rear side position and is all installed in the lower lateral wall intermediate position and is leaned on the rear side position, limit slide groove 19 has all been seted up to the inside wall intermediate position of fixed lasso 2's inside wall intermediate position and inside wall intermediate position of lower extreme, two limit slide grooves 14 are sliding connection respectively in the inside wall intermediate position of two limit slide grooves 19, the last lateral wall threaded connection of fixed lasso 2 has a plurality of first locking bolts 4 that are polar axis distribution, the lower lateral wall of a plurality of first locking bolts 4 runs through the last lateral wall of installation round frame 15 respectively, and threaded connection is in the inside wall bottom position of fixed lasso 2, the both sides wall intermediate position of movable lasso 11 all installs stretching block 3, through use utensil in proper order first and the inside wall intermediate position and lower lateral wall intermediate position of fixed lasso 11 is leans up the first sealing ring 4, and the second sealing washer 11 is used for the sealing washer 13, the sealing washer 17 is changed in order, the second sealing ring 13 is changed in order to the condition that the intermediate position is changed with the second sealing ring 11, the sealing ring 13 is changed in order to the intermediate position is 16, the sealing ring 13, the life is changed in the life is improved, and the sealing ring is changed in the condition is 13.

The middle position of the lower side wall of the first drill rod 1 is provided with a second drill rod 27, the middle of the two side walls of the second drill rod 27 is provided with concave installation blocks 20 near the upper end, the two concave installation blocks 20 are distributed in mirror image opposition, the inner side walls of the two concave installation blocks 20 are connected with extension auxiliary rods 21 in a rotating way near the middle position, the middle positions of the front side walls of the two concave installation blocks 20 are penetrated and connected with second locking bolts 25 in a threaded way, the rear side walls of the two second locking bolts 25 penetrate the middle near the top positions of the front side walls of the two extension auxiliary rods 21 respectively and are connected with the middle near the rear side positions of the inner side walls of the two concave installation blocks 20 in a threaded way, the two side walls of the two extension auxiliary rods 21 are respectively provided with a plurality of third blades 22 distributed in an array way, the functions of enlarging drilling and loosening soil are achieved during drilling through the plurality of third blades 22, the support rods 26 are arranged at the positions close to the bottom in the middle of the inner side walls of the two extension auxiliary rods 21, the third locking bolts 23 are penetrated and rotationally connected at the positions close to the lower ends in the middle of the front side walls of the two extension auxiliary rods 21, the rear side walls of the two third locking bolts 23 penetrate through the positions close to one side in the middle of the front side walls of the two support rods 26 and the positions close to the other side in the middle and are in threaded connection with the positions close to the rear sides in the middle of the inner side walls of the two extension auxiliary rods 21, the welding blocks 24 are respectively arranged on one side wall and the other side wall of the two support rods 26, the welding blocks 24 are respectively arranged on the positions close to the middle of the two side walls of the second drill rod 27, the third blades 22 distributed in a plurality of arrays are respectively arranged on one side wall and the other side wall of the two extension auxiliary rods 21, the third blades 22 are used for secondary auxiliary scarification,

The lower lateral wall of second drilling rod 27 installs bit end 7, the outer lateral wall middle of bit end 7 is near lower extreme position fixed mounting has boring disc 8, a plurality of first blades 9 that are polar axis distribution are installed to the lower lateral wall of boring disc 8, a plurality of second blades 10 that are polar axis distribution are installed near outside position in the middle of the lower lateral wall of bit end 7, during drilling, contact with the hydrogeology at first through second blades 10, and set up the rotation under the effect of rig, first blades 9 that are a plurality of polar axis distributions through boring disc 8 lower lateral wall installation and a plurality of arrays of third blades 22 that extend auxiliary rod 21 both sides wall installation distribute assist drilling, and first blades 9, second blades 10 and third blades 22 all adopt diamond cone-shaped composite sheet, can play the effect of leading, the problem of drilling deflection has been solved, and the material is not fragile, save the cost, the upper lateral wall intermediate position of first drilling rod 1 installs conveyer 5, install thread bush 6 through the upper lateral wall intermediate position of thread bush 6, the upper lateral wall intermediate position of thread bush 6 has set up the screw thread bush 12, the mud pump 13 is carried out through the drill bit 13 in the pipe 13 is connected to the drilling rod 13 through the intermediate position of a plurality of arrays of drill rod 13, the mud pump 13 is carried out to the pipe 13 in proper order through the intermediate position of bit 13, the mud pump 13 is set up in the pipe 13 in the pipeline is installed through the intermediate position of bit 13.

Working principle: when the drill bit is integrally installed at the output end of the hydrologic cycle drilling machine through the threaded opening 12 formed in the middle position of the upper side wall of the threaded sleeve 6, whether each of the first locking bolt 4, the second locking bolt 25 and the third locking bolt 23 is loosened or not is checked in sequence, if so, the hydrologic cycle drilling operation can be started after the checking is completed by using a tool, when the drill bit is drilled, the drill bit is firstly contacted with hydrologic geology through the second blade 10 and is opened and rotated under the action of the drilling machine, the first blade 9 distributed through a plurality of polar shafts arranged on the lower side wall of the drill disc 8 and the third blades 22 distributed in a plurality of arrays arranged on the two side walls of the two extending auxiliary rods 21 are used for auxiliary drilling, the second blade 10 firstly loosens soil, secondly enlarges the drilling radius through the first blade 9, and secondly auxiliary loosens soil operation is performed again through the third blade 22, in order to improve the drilling efficiency, the mud in hydrogeology is pumped by a mud pump in a drilling machine through a mud pipe 13, the mud in the mud pipe 13 is conveyed to the ground through the mud pipe 13, when the mud in the mud pipe 13 enters the middle of the inner side wall of the first drill rod 1 through the drilling end 7, larger impurities are isolated through a filter screen 16, the mud pipe 13 is prevented from being blocked, the mud conveyed to the ground is discharged into a mud tank, the mud is deposited in the mud tank, then the mud is returned to the drilling hole again, the hydrographic circulation operation is sequentially completed, after a plurality of first locking bolts 4 are sequentially loosened by using a tool, a stretching block 3 is pulled to any side, the movable ferrule 11 is detached, the filter screen 16 can be sequentially replaced, the service life of the equipment is further improved while the operation efficiency is improved, the condition that the mud pipe 13 is frequently blocked is avoided, the method is particularly suitable for non-rock layer operation of mud layers, shale layers and the like.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The hydrologic reverse circulation drill bit comprises a first drill rod (1), and is characterized in that: the utility model discloses a fixed ring (2) is leaned on intermediate position fixed mounting to the lateral wall of first drilling rod (1), the inside wall intermediate position of fixed ring (2) runs through and sliding connection has movable ring (11), movable ring (11) run through and sliding connection is in the both sides wall intermediate position of first drilling rod (1), install round frame (15) in the inside wall intermediate position of movable ring (11), install filter screen (16) in the inside wall intermediate position of round frame (15), limit slide block (14) are all installed in the back side position in the middle of the upper side wall of movable ring (11) and the lower side wall in the middle of the back side position, limit slide groove (19) have all been seted up in the back side position in the middle of the inside wall intermediate position and the inside wall intermediate position of fixed ring (2) in the inside wall intermediate position of fixed ring (2), two limit slide block (14) are sliding connection respectively in the inside wall intermediate position of two limit slide groove (19), the last lateral wall threaded connection of fixed ring (2) has a plurality of first locking bolts (4) that are polar axis distribution, a plurality of the lateral wall of first locking bolts (4) are installed on the inside wall intermediate position of the side wall of round frame (3) and the side wall of running through the fixed ring (3).

2. A hydrologic reverse circulation drill bit as claimed in claim 1, wherein: the middle position of the upper side wall of the movable ferrule (11) is provided with a first sealing ring (17), and the middle position of the lower side wall of the movable ferrule (11) is provided with a second sealing ring (18).

3. A hydrologic reverse circulation drill bit as claimed in claim 1, wherein: the utility model discloses a drilling machine, including first drilling rod (1), second drilling rod (27) are installed to the lower lateral wall intermediate position of first drilling rod (1), concave installation piece (20) are all installed to the both sides wall intermediate position of second drilling rod (27) near upper end position, two concave installation piece (20) are mirror image opposition and distribute, two concave installation piece (20) inside wall is all rotated near intermediate position and is connected with extension auxiliary rod (21), two the preceding lateral wall intermediate position of concave installation piece (20) all runs through and threaded connection has second locking bolt (25), two the back lateral wall of second locking bolt (25) runs through the preceding lateral wall intermediate position near top position threaded connection near rear side position in the inside wall intermediate position of two concave installation pieces (20) respectively.

4. A hydrologic reverse circulation drill bit as claimed in claim 3, wherein: the two support rods (26) are installed in the middle of the inner side walls of the two extension auxiliary rods (21) near the bottom, the lower end positions of the middle parts of the front side walls of the two extension auxiliary rods (21) penetrate through and are rotationally connected with third locking bolts (23), the rear side walls of the two third locking bolts (23) penetrate through the middle parts of the front side walls of the two support rods (26) near one side, the front side walls and the middle parts near the other side respectively, the lower end positions of the middle parts of the inner side walls of the two extension auxiliary rods (21) near the rear side are connected with threads, welding blocks (24) are installed on one side wall and the other side wall of the two support rods (26) respectively, one side wall and the other side wall of the two welding blocks (24) are installed on the two side walls of the second drill rods (27) near the middle positions, and a plurality of third blades (22) distributed in arrays are installed on one side wall and the other side wall of the two extension auxiliary rods (21) respectively.

5. A hydrologic reverse circulation drill bit as claimed in claim 4, wherein: the lower lateral wall of second drilling rod (27) is installed and is bored end (7), the lateral wall centre of boring end (7) is close to lower extreme position fixed mounting and is bored dish (8), a plurality of first blade (9) that are polar axis distribution are installed to the lower lateral wall of boring dish (8), the lateral wall centre of the lower lateral wall of boring end (7) is close to outside position and is installed a plurality of second blade (10) that are polar axis distribution.

6. A hydrologic reverse circulation drill bit as claimed in claim 5, wherein: the first blade (9), the second blade (10) and the third blade (22) are diamond cone-shaped composite sheets.

7. A hydrologic reverse circulation drill bit as claimed in claim 1, wherein: the drill rod is characterized in that a conveying drill rod (5) is arranged at the middle position of the upper side wall of the first drill rod (1), a threaded sleeve (6) is arranged on the upper side wall of the conveying drill rod (5), and a threaded opening (12) is formed in the middle position of the upper side wall of the threaded sleeve (6).

8. A hydrologic reverse circulation drill bit as claimed in claim 7, wherein: the inner side walls of the conveying drill rod (5), the first drill rod (1), the second drill rod (27) and the drill bit end (7) are provided with mud pipes (13), and the four mud pipes (13) are sequentially connected.