CN215949386U

CN215949386U - A high strength well drilling drill bit for drilling engineering's convenient to detach

Info

Publication number: CN215949386U
Application number: CN202122284540.5U
Authority: CN
Inventors: 王阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-04
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a high-strength drilling bit convenient to disassemble and used for drilling engineering, which comprises a drilling bit body, wherein the top of the drilling bit body is fixedly connected with a connecting sleeve, a drill rod is arranged above the drilling bit body, clamping grooves are formed in the inner walls of two sides of the connecting sleeve, a buffering type quick fixing mechanism is fixedly sleeved on the drill rod and comprises a round box fixedly sleeved on the drill rod, the bottom of the round box is provided with an opening, a buffer pipe is slidably sleeved in the round box, the bottom end of the buffer pipe extends to the lower part of the round box, and the buffer pipe is movably sleeved on the connecting sleeve. The utility model is convenient for quickly disassembling and assembling the drilling bit body, improves the disassembling and assembling efficiency, is convenient for the subsequent disassembling, assembling, repairing and replacing work of personnel, relieves the hard impact force when the drilling bit body just starts to drill down through the four buffer springs, reduces the damage risk of the drilling bit body and meets the use requirement.

Description

A high strength well drilling drill bit for drilling engineering's convenient to detach

Technical Field

The utility model relates to the technical field of drilling bits, in particular to a high-strength drilling bit which is used for drilling engineering and convenient to disassemble.

Background

The diamond well drilling bit is a high-strength well drilling bit commonly used in well drilling work, belongs to an integral type bit, has no movable parts in the whole bit, has a simple structure, has high strength, high wear resistance and impact resistance, is one of three new technologies of well drilling in the world of the 20 th century and the 80 th century, and performs well drilling work by installing the bit and a drill rod of a drilling machine and controlling the bit through the drilling machine.

The existing high-strength drilling bit is mostly fixed with a drill rod directly through threads or a plurality of bolts during installation; its dismouting connection efficiency is low, there is the shortcoming of being not convenient for quick to the well drilling drill bit dismouting, inconvenient subsequent dismouting maintenance work, and it is not convenient for alleviate the hard impact force of well drilling drill bit underrun in-process, when the drill bit just begins to bore, its impact force is great mostly, the drill bit directly takes place hard impact with ground, it is great to cause the risk that the drill bit damaged easily, can not satisfy the user demand, synthesize above-mentioned condition and improve, therefore we have proposed a high strength well drilling drill bit for well drilling engineering's convenient to detach, a use for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-strength drill bit which is convenient to disassemble and used for drilling engineering.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a high-strength well drilling drill bit convenient to disassemble and used for well drilling engineering comprises a well drilling drill bit body, wherein a connecting sleeve is fixedly connected to the top of the well drilling drill bit body, a drill rod is arranged above the well drilling drill bit body, clamping grooves are formed in the inner walls of two sides of the connecting sleeve, and a buffer type quick fixing mechanism is fixedly sleeved on the drill rod;

the buffering type quick-fixing mechanism comprises a round box fixedly sleeved on a drill rod, the bottom of the round box is provided with an opening, a buffer tube is sleeved in the round box in a sliding manner, the bottom end of the buffer tube extends to the lower part of the round box, the buffer tube is movably sleeved on a connecting sleeve, a clip rod is fixedly connected between the inner walls of the two sides of the buffer tube, two sliding sleeves are sleeved on the clip rod in a sliding manner, the bottom of each sliding sleeve is fixedly connected with an L-shaped clamping rod, the two L-shaped clamping rods are symmetrically arranged, the ends, far away from each other, of the two L-shaped clamping rods are respectively clamped with corresponding clamping grooves, a groove is formed in the right side of the buffer tube, a threaded driving assembly is rotatably connected between the inner walls of the two sides of the clip rod, the inner walls of the two sliding sleeves are fixedly connected with the threaded driving assembly, the right end of the threaded driving assembly extends into the groove and is fixedly connected with an inner hexagonal driving sleeve, and four guiding buffering assemblies are fixedly connected on the inner wall of the top of the round box at equal intervals in an annular shape, the buffer tubes are sleeved on the four guide buffer components in a sliding manner.

Preferably, the screw thread drive assembly includes two screw rods, two remove seats and connecting axle, the one end that two screw rods kept away from each other is connected with the both sides inner wall rotation of returning the shape pole respectively, the one end that two screw rods are close to each other welds, the screw thread turning direction of two screw rods is opposite, two remove the seat respectively the thread bush establish on the screw rod that corresponds, the top and the bottom of removing the seat respectively with the top inner wall and the bottom inner wall fixed connection of the sliding sleeve that correspond, the right-hand member of the screw rod that is located the right side and the left end fixed connection of connecting axle, the right-hand member of connecting axle extend to in the recess and with the left side fixed connection of interior hexagonal drive cover.

Preferably, the direction buffering subassembly includes guide bar and buffer spring, and four guide bars are annular equidistant fixed connection on the top inner wall of circle box, and the buffer tube slip cap is established on four guide bars, buffer spring's top and bottom respectively with the top inner wall of circle box and the top fixed connection of buffer tube, and buffer spring movable sleeve is established on the guide bar that corresponds.

Preferably, the bottom end of the buffer tube is fixedly bonded with a sealing rubber ring, the bottom of the sealing rubber ring is movably contacted with the top of the drilling bit body, and the connecting sleeve is positioned in the sealing rubber ring.

Preferably, set up on the top inner wall of circle box with drilling rod outside fixed connection's first round hole, all seted up the spacing groove on the both sides inner wall of circle box, the equal fixedly connected with stopper in both sides top of buffer tube, and stopper and the spacing groove sliding connection who corresponds.

Preferably, one side of the movable seat is provided with a threaded hole in threaded connection with the corresponding screw.

Preferably, the inner walls of the two sides of the square-shaped rod are both provided with a rotating groove, a bearing is fixedly sleeved in the rotating groove, the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding screw rod, the inner wall of the right side of the rotating groove on the right side is provided with a first through hole, and the connecting shaft is located in the first through hole and is not in contact with the inner wall of the first through hole.

Preferably, four guide grooves are annularly and equidistantly formed in the top end of the buffer tube, and the inner walls of the guide grooves are in sliding connection with the outer sides of the corresponding guide rods.

Compared with the prior art, the utility model has the beneficial effects that:

through the matching of the drilling bit body, the connecting sleeve, the drill rod, the clamping groove, the round box, the buffer pipe, the sealing rubber ring, the clip rod, the sliding sleeve, the L-shaped clamping rod, the screw rod, the moving seat, the groove, the inner hexagonal driving sleeve, the guide rods, the buffer springs and the limiting blocks, the drilling bit body can be shielded and limited by the ground when the drilling bit body just starts to contact with the ground downwards, at the moment, the drill rod drives the four guide rods to slide downwards in the four guide grooves through the round box and compresses the four buffer springs downwards, the four buffer springs in a compressed state extrude the drilling bit body, so that the drilling bit body continues to move downwards and perform drilling operation on the ground, and the arrangement of the buffer springs relieves the hard impact force when the drilling bit body just starts to drill and reduces the damage risk of the drilling bit body;

when the drilling bit is disassembled and assembled, the outer inner hexagonal wrench is used for controlling the inner hexagonal driving sleeve to rotate in the forward direction, the inner hexagonal driving sleeve drives the two screw rods to rotate through the connecting shaft, the two screw rods can drive the two moving seats to move towards the mutually approaching direction, the two moving seats drive the two L-shaped clamping rods to separate from the corresponding clamping grooves respectively towards the mutually approaching direction through the two sliding sleeves, the clamping is removed, the drilling bit body is moved downwards to drive the connecting sleeve to separate from the buffer tube, the disassembling is completed, when the drilling bit is assembled, the connecting sleeve is upwards inserted into the buffer tube, the inner hexagonal driving sleeve is rotated in the reverse direction, the two L-shaped clamping rods move towards the mutually away direction and are clamped with the corresponding clamping grooves respectively, the connecting sleeve is clamped and fixed, and the drilling bit body is fixed, so that the drilling bit body can be disassembled and assembled quickly.

The utility model is convenient for quickly disassembling and assembling the drilling bit body, improves the disassembling and assembling efficiency, is convenient for the subsequent disassembling, assembling, repairing and replacing work of personnel, relieves the hard impact force when the drilling bit body just starts to drill down through the four buffer springs, reduces the damage risk of the drilling bit body and meets the use requirement.

Drawings

FIG. 1 is a schematic diagram of a high strength drill bit for drilling applications that is easy to disassemble and is proposed in the present invention;

FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1;

fig. 3 is a schematic top view of the dual-profile rod and sliding sleeve connection of the detachable high-strength drill bit for drilling engineering according to the present invention.

In the figure: 100 well drilling bit bodies, 101 connecting sleeves, 200 drill rods, 1 clamping groove, 2 round boxes, 3 buffer tubes, 4 sealing rubber rings, 5-shaped rods, 6 sliding sleeves, 7L-shaped clamping rods, 8 screw rods, 9 moving seats, 10 grooves, 11 inner hexagonal driving sleeves, 12 guide rods, 13 buffer springs, 14 guide grooves and 15 limiting blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a high-strength drill bit convenient to disassemble and used for drilling engineering comprises a drill bit body 100, wherein the top of the drill bit body 100 is fixedly connected with a connecting sleeve 101, a drill rod 200 is arranged above the drill bit body 100, clamping grooves 1 are respectively formed in the inner walls of the two sides of the connecting sleeve 101, and a buffer type quick-fixing mechanism is fixedly sleeved on the drill rod 200;

the buffering type quick-fixing mechanism comprises a round box 2 fixedly sleeved on a drill rod 200, the bottom of the round box 2 is provided with an opening, a buffer tube 3 is sleeved in the round box 2 in a sliding manner, the bottom end of the buffer tube 3 extends to the lower part of the round box 2, the buffer tube 3 is movably sleeved on a connecting sleeve 101, a clip rod 5 is fixedly connected between the inner walls of the two sides of the buffer tube 3, two sliding sleeves 6 are sleeved on the clip rod 5 in a sliding manner, the bottom of each sliding sleeve 6 is fixedly connected with an L-shaped clamping rod 7, the two L-shaped clamping rods 7 are symmetrically arranged, the ends, far away from each other, of the two L-shaped clamping rods 7 are respectively clamped with corresponding clamping grooves 1, the right side of the buffer tube 3 is provided with a groove 10, a thread driving component is rotatably connected between the inner walls of the two sides of the clip rod 5, the inner walls of the two sliding sleeves 6 are both fixedly connected with the thread driving component, the right end of the thread driving component extends into the groove 10 and is fixedly connected with an inner hexagonal driving sleeve 11, four guide buffer components are fixedly connected to the inner wall of the top of the round box 2 at equal intervals in a ring shape, and the buffer tube 3 is sleeved on the four guide buffer components in a sliding manner;

the thread driving assembly comprises two screw rods 8, two moving seats 9 and a connecting shaft, wherein one ends of the two screw rods 8, which are far away from each other, are respectively rotatably connected with the inner walls of the two sides of the square-shaped rod 5, the ends of the two screw rods 8, which are close to each other, are welded, the thread turning directions of the two screw rods 8 are opposite, the two moving seats 9 are respectively sleeved on the corresponding screw rods 8 in a thread manner, the top and the bottom of each moving seat 9 are respectively fixedly connected with the inner wall of the top and the inner wall of the bottom of the corresponding sliding sleeve 6, the right end of the screw rod 8 positioned on the right side is fixedly connected with the left end of the connecting shaft, and the right end of the connecting shaft extends into the groove 10 and is fixedly connected with the left side of the inner hexagonal driving sleeve 11;

the guide buffer assembly comprises guide rods 12 and buffer springs 13, the four guide rods 12 are fixedly connected to the inner wall of the top of the round box 2 at equal intervals in an annular mode, the buffer tubes 3 are sleeved on the four guide rods 12 in a sliding mode, the top ends and the bottom ends of the buffer springs 13 are fixedly connected with the inner wall of the top of the round box 2 and the top ends of the buffer tubes 3 respectively, and the buffer springs 13 are movably sleeved on the corresponding guide rods 12.

In the utility model, a sealing rubber ring 4 is fixedly bonded at the bottom end of a buffer tube 3, the bottom of the sealing rubber ring 4 is movably contacted with the top of a drilling bit body 100, a connecting sleeve 101 is positioned in the sealing rubber ring 4, the inner wall of the top of a round box 2 is provided with a first round hole fixedly connected with the outer side of a drill rod 200, the inner walls of two sides of the round box 2 are respectively provided with a limiting groove, the tops of two sides of the buffer tube 3 are respectively and fixedly connected with a limiting block 15, the limiting blocks 15 are in sliding connection with the corresponding limiting grooves, one side of a movable seat 9 is provided with a threaded hole in threaded connection with a corresponding screw rod 8, the inner walls of two sides of a clip rod 5 are respectively provided with a rotating groove, a bearing is fixedly sleeved in the rotating groove, the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding screw rod 8, the inner wall of the right side of the rotating groove is provided with a first perforation, a connecting shaft is positioned in the first perforation and is not contacted with the inner wall of the first perforation, the four guide grooves 14 are annularly and equidistantly formed in the top end of the buffer tube 3, and the inner walls of the guide grooves 14 are in sliding connection with the outer sides of the corresponding guide rods 12.

The working principle is as follows: during drilling operation, the drilling bit body 100 can generate a downward impact force to extrude the ground or a drilled surface, the ground limits the drilling bit body 100 to move downwards continuously, at the moment, the drill rod 200 drives the round box 2 to slide downwards on the buffer tube 3, the round box 2 drives the four guide rods 12 to slide downwards in the four guide grooves 14 and compress the four buffer springs 13 downwards, when the round box 2 drives the inner wall of the top of the limiting groove to contact with the top of the limiting block 15, the round box 2 moving downwards continuously drives the buffer tube 3 to move downwards through the two limiting blocks 15, at the moment, the buffer tube 3 and the four buffer springs 13 in a compressed state extrude the drilling bit body 100, so that the drilling bit body 100 continues to move downwards and perform drilling operation on the ground, and the arrangement of the buffer springs 13 relieves the hard impact force when the drilling bit body 100 starts to drill downwards, reducing the risk of damage to the drill bit body 100 due to a large hard impact force;

when the drilling bit body 100 needs to be disassembled and assembled, when the drilling bit body 100 is disassembled, an external hexagon socket wrench is inserted into the hexagon socket driving sleeve 11, then the hexagon socket wrench is used for controlling the hexagon socket driving sleeve 11 to rotate in the forward direction, the hexagon socket driving sleeve 11 drives the two screw rods 8 to rotate through the connecting shaft, under the action of the threaded holes formed in the movable seats 9, the two screw rods 8 can drive the two movable seats 9 to move towards the direction of mutual approaching, the two movable seats 9 drive the two sliding sleeves 6 to slide on the square-shaped rods 5 towards the direction of mutual approaching, the two sliding sleeves 6 drive the two L-shaped clamping rods 7 to respectively separate from the corresponding clamping grooves 1 of the buffer tubes towards the direction of mutual approaching, the clamping is released, at the moment, the drilling bit body 100 is moved downwards to drive the connecting sleeve 101 to separate from the buffer tube 3, the separation is completed, when the drilling bit body is assembled, the connecting sleeve 101 is upwards inserted into the buffer tube 3, then the hexagon socket driving sleeve 11 is reversely rotated, the same reason is completely opposite with the motion direction of forward rotation allen key drive cover 11, and two L shape kellies 7 change into the direction removal of keeping away from each other this moment to clamp mutually with corresponding draw-in groove 1 respectively, realize blocking solid to adapter sleeve 101, and then realize fixing drilling bit body 100, the installation is accomplished, makes things convenient for quick to the dismouting of drilling bit body 100, makes things convenient for the subsequent dismouting of personnel to overhaul change work.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The high-strength drilling bit convenient to disassemble and used for drilling engineering comprises a drilling bit body (100), wherein the top of the drilling bit body (100) is fixedly connected with a connecting sleeve (101), and a drill rod (200) is arranged above the drilling bit body (100), and is characterized in that clamping grooves (1) are formed in the inner walls of two sides of the connecting sleeve (101), and a buffer type quick-fixing mechanism is fixedly sleeved on the drill rod (200);

the buffering type fast-fixing mechanism comprises a round box (2) fixedly sleeved on a drill rod (200), the bottom of the round box (2) is provided with an opening, a buffer tube (3) is sleeved in the round box (2) in a sliding manner, the bottom end of the buffer tube (3) extends to the lower side of the round box (2), the buffer tube (3) is movably sleeved on a connecting sleeve (101), a clip rod (5) is fixedly connected between the inner walls of two sides of the buffer tube (3), two sliding sleeves (6) are sleeved on the clip rod (5) in a sliding manner, an L-shaped clip rod (7) is fixedly connected at the bottom of the sliding sleeve (6), the two L-shaped clip rods (7) are symmetrically arranged, one ends, far away from each other, of the two L-shaped clip rods (7) are respectively clipped with corresponding clipping grooves (1), a groove (10) is formed in the right side of the buffer tube (3), and a thread driving assembly is rotatably connected between the inner walls of two sides of the clip rod (5), the inner walls of the two sliding sleeves (6) are fixedly connected with the threaded driving assembly, the right end of the threaded driving assembly extends into the groove (10) and is fixedly connected with an inner hexagonal driving sleeve (11), four guide buffering assemblies are fixedly connected with the inner wall of the top of the round box (2) in an annular equidistant mode, and the four guide buffering assemblies are sleeved with the buffering tubes (3) in a sliding mode.

2. A high strength drill bit for drilling engineering that is easy to disassemble as claimed in claim 1, its characterized in that, the screw thread drive assembly includes two screw rods (8), two remove seat (9) and connecting axle, the one end that two screw rods (8) kept away from each other is connected with the both sides inner wall rotation of returning shape pole (5) respectively, the one end that two screw rods (8) are close to each other welds mutually, the screw thread of two screw rods (8) is turned round to opposite, two remove seat (9) respectively the screw thread cover establish on corresponding screw rod (8), the top and the bottom of removing seat (9) respectively with the top inner wall and the bottom inner wall fixed connection of sliding sleeve (6) that correspond, the right-hand member that is located screw rod (8) on right side and the left end fixed connection of connecting axle, the right-hand member of connecting axle extends to in recess (10) and with the left side fixed connection of interior hexagonal driving sleeve (11).

3. The high-strength drill bit convenient to disassemble and assemble for drilling engineering is characterized in that the guide buffer assembly comprises guide rods (12) and buffer springs (13), the four guide rods (12) are fixedly connected to the inner wall of the top of the round box (2) at equal intervals in a ring shape, the buffer tubes (3) are slidably sleeved on the four guide rods (12), the top ends and the bottom ends of the buffer springs (13) are respectively fixedly connected with the inner wall of the top of the round box (2) and the top ends of the buffer tubes (3), and the buffer springs (13) are movably sleeved on the corresponding guide rods (12).

4. The high-strength drill bit convenient to disassemble and assemble for drilling engineering is characterized in that a sealing rubber ring (4) is fixedly bonded to the bottom end of the buffer tube (3), the bottom of the sealing rubber ring (4) is in movable contact with the top of the drill bit body (100), and the connecting sleeve (101) is located in the sealing rubber ring (4).

5. The high-strength drilling bit convenient to detach for drilling engineering as claimed in claim 1, wherein a first round hole fixedly connected with the outside of the drill rod (200) is formed in the inner wall of the top of the round box (2), limiting grooves are formed in the inner walls of two sides of the round box (2), limiting blocks (15) are fixedly connected to the tops of two sides of the buffer tube (3), and the limiting blocks (15) are slidably connected with the corresponding limiting grooves.

6. The high-strength drill bit convenient to disassemble and assemble for drilling engineering as claimed in claim 2, wherein one side of the moving seat (9) is provided with a threaded hole in threaded connection with the corresponding screw (8).

7. The high-strength drill bit convenient for disassembly for drilling engineering as claimed in claim 2, wherein the inner walls of the two sides of the clip rod (5) are both provided with a rotating groove, a bearing is fixedly sleeved in the rotating groove, the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding screw (8), the inner wall of the right side of the rotating groove on the right side is provided with a first through hole, and the connecting shaft is positioned in the first through hole and is not in contact with the inner wall of the first through hole.

8. The high-strength drill bit for drilling engineering, which is convenient to disassemble and assemble, as claimed in claim 3, is characterized in that the top end of the buffer tube (3) is annularly provided with four guide grooves (14) at equal intervals, and the inner walls of the guide grooves (14) are slidably connected with the outer sides of the corresponding guide rods (12).