CN213144380U - Full-automatic screw drill - Google Patents

Abstract

The utility model discloses a full-automatic screw rod drilling tool relates to well drilling technical field. The utility model discloses a drill bit, the drill bit includes drill bit afterbody and drill bit head, the drill bit afterbody includes an annular support and an interior screw rod, interior screw rod is located the middle part of annular support, a screw hole has been seted up on the preceding terminal surface of interior screw rod, the front side fixed mounting of annular support has the link, fixed mounting has a plurality of polycrystalline diamond composite drill block on the link, fixed mounting has a spacing post on the link keeps away from an end face of annular support, the drill bit head includes a toper drill point and a connecting ring, the connecting ring is located the rear side of toper drill point, fixed mounting has a screw thread post on the rear surface of toper drill point. The utility model discloses a combined use of drill bit afterbody and drill bit head, can be quick with the drill bit head follow drill bit afterbody dismantles to realized being convenient for to the change of drill bit head, thereby very big improvement staff's work efficiency.

Description

Full-automatic screw drill

Technical Field

The utility model belongs to the technical field of the drilling, especially, relate to a full-automatic screw rod drilling tool.

Background

Chinese patent discloses a full-automatic screw drill with a positioning structure, the publication number of which is CN105003197B, the full-automatic screw drill comprises a drill bit part, a direction changing part, a return mechanism and a positioning structure, the drill bit part adopts a special conical drill bit structure, the working efficiency in the working process is extremely high, the direction changing part carries out direction changing control through the motor and the rotating frame, when needing to turn, the rotating frame is firstly driven to the corresponding position by the turning motor, and then the turning is carried out by the turning motor, so that the steering and the moving can be correspondingly carried out according to the requirement, the return mechanism is mainly controlled by the cylinder, the fixed end is extended out by the positioning structure through the cylinder, the corresponding position regulation and control can be carried out according to the requirement in the drilling process, when the drill bit is not easy to drill in a place, the drill bit can be positioned through the positioning structure, then the return mechanism retracts the drill bit, and then the drill bit is drilled for multiple times until the drill bit is opened; although the drill bit part in the above-mentioned patent adopts purpose-built cone drill bit structure, and work process work efficiency is high, but is difficult to dismantle drill bit, because drill bit is located the foremost of drilling tool, consequently very easily damages, is difficult to change drill bit after the drill bit damages to reduced the efficiency of well drilling, for this, the utility model designs a full-automatic screw drilling tool to this, solves above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic screw rod drilling tool through the combined use of drill bit afterbody and drill bit head, has solved current full-automatic screw rod drilling tool and has changed comparatively trouble problem to drill bit head.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a full-automatic screw drill, which comprises a drill bit, wherein the drill bit comprises a drill bit tail part and a drill bit head part; the tail part of the drill bit comprises an annular support and an inner screw rod, the inner screw rod is positioned in the middle of the annular support, a threaded hole is formed in the front end face of the inner screw rod, a connecting frame is fixedly installed on the front side of the annular support, a plurality of polycrystalline diamond composite drill blocks are fixedly installed on the connecting frame, and a limiting column is fixedly installed on one end face, away from the annular support, of the connecting frame; the drill bit head comprises a conical drill point and a connecting ring, the connecting ring is located on the rear side of the conical drill point, a threaded column is fixedly mounted on the rear surface of the conical drill point and is perpendicular to the rear surface of the conical drill point, the threaded column is in threaded hole in threaded connection, a connecting plate is fixedly mounted on the inner wall of the connecting ring, a limiting hole is formed in the connecting plate, the limiting column is inserted into the limiting hole, four guide columns which are annularly arranged are fixedly mounted on the rear surface of the conical drill point, the guide columns and the connecting plate are distributed in a staggered mode, one end, away from the conical drill point, of each guide column penetrates through the connecting ring, a baffle is fixedly mounted on one end face, away from the conical drill point, of each guide column, the peripheral side face of each guide column is located between the conical drill point and the connecting ring, and a spring is sleeved between each guide column and the corresponding.

Furthermore, the number of the connecting frames is four, and the four connecting frames are arranged in a ring shape.

Furthermore, the number of the polycrystalline diamond compact drill blocks is three, and the three polycrystalline diamond compact drill blocks are linearly arranged.

Furthermore, the limiting column is a component made of steel alloy materials, and the limiting column is parallel to the inner screw rod.

Furthermore, the number of the connecting plates is four, and the four connecting plates are arranged in a ring shape.

The utility model discloses following beneficial effect has:

the utility model discloses a to the front side propelling connection ring, the spring will contract and shorten when the go-between promotes to the front side, and spacing post will break away from the inside in spacing hole this moment, and spacing post no longer carries on spacingly to the drill bit head, can rotate the drill bit head this moment, makes the screw thread post break away from the inside of screw hole, can dismantle the drill bit head from the drill bit afterbody, changes the drill bit head, the utility model discloses a combined use of drill bit afterbody and drill bit head can be quick dismantles the drill bit head from the drill bit afterbody to realized being convenient for to the change of drill bit head, thereby very big improvement staff's work efficiency.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a fully automatic screw drill;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a schematic view of the structure of the tail of the drill bit;

FIG. 5 is a schematic view of the construction of the bit head;

FIG. 6 is a cross-sectional view of FIG. 5;

in the drawings, the components represented by the respective reference numerals are listed below:

1-bit tail, 101-annular support, 102-internal screw, 103-threaded hole, 104-connecting frame, 105-polycrystalline diamond composite drill block, 106-limiting column, 2-bit head, 201-conical drill tip, 202-threaded column, 203-connecting ring, 204-connecting plate, 205-limiting hole, 206-guiding column, 207-baffle and 208-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention relates to a full automatic screw drill, which comprises a drill bit, wherein the drill bit comprises a drill bit tail 1 and a drill bit head 2;

the drill bit tail part 1 comprises an annular support 101 and an inner screw 102, the inner screw 102 is positioned in the middle of the annular support 101, a threaded hole 103 is formed in the front end face of the inner screw 102, a connecting frame 104 is fixedly installed on the front side of the annular support 101, a plurality of polycrystalline diamond composite drill blocks 105 are fixedly installed on the connecting frame 104, and a limiting column 106 is fixedly installed on one end face, far away from the annular support 101, of the connecting frame 104;

the drill head 2 comprises a conical drill point 201 and a connecting ring 203, the connecting ring 203 is positioned at the rear side of the conical drill point 201, a threaded column 202 is fixedly arranged on the rear surface of the conical drill point 201, the threaded column 202 is perpendicular to the rear surface of the conical drill point 201, the threaded column 202 is in threaded connection with the inside of a threaded hole 103, a connecting plate 204 is fixedly arranged on the inner wall of the connecting ring 203, a limiting hole 205 is formed in the connecting plate 204, a limiting column 106 is inserted in the limiting hole 205, four guide columns 206 which are arranged in an annular shape are fixedly arranged on the rear surface of the conical drill point 201, the guide columns 206 and the connecting plate 204 are distributed in a staggered mode, one ends, far away from the conical drill point 201, of the guide columns 206 penetrate through the connecting ring, and a baffle 207 is fixedly installed on one end face of the guide column 206 far away from the conical drill point 201, and a spring 208 is sleeved on the peripheral side face of the guide column 206 and positioned between the conical drill point 201 and the connecting ring 203.

As shown in fig. 4, the number of the connecting frames 104 is four, and four connecting frames 104 are arranged in a ring shape.

As shown in fig. 4, the number of polycrystalline diamond compact blocks 105 is three, and three polycrystalline diamond compact blocks 105 are linearly arranged.

As shown in fig. 4, the position-limiting column 106 is made of steel alloy, and the position-limiting column 106 is parallel to the inner screw 102.

As shown in fig. 5, the number of the connecting plates 204 is four, and four connecting plates 204 are arranged in a ring shape.

One specific application of this embodiment is: during drilling, the drill bit 2 is positioned at the most front end of the drilling tool, so that the drill bit is extremely easy to damage, when the bit 2 needs to be replaced after being damaged, the worker pushes the connection ring 203 to the front side, the spring 208 will contract and shorten when the connection ring 203 pushes to the front side, the limit post 106 will be separated from the inside of the limit hole 205, the limit post 106 will not limit the bit 2 any more, the bit 2 can be rotated to separate the threaded post 202 from the inside of the threaded hole 103, the drill bit head 2 can be detached from the drill bit tail part 1, and the drill bit head 2 is replaced, the utility model can rapidly detach the drill bit head 2 from the drill bit tail part 1 by combining the drill bit tail part 1 and the drill bit head part 2, thereby realized being convenient for to the change of drill bit head 2 to very big improvement staff's work efficiency.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The utility model provides a full-automatic screw rod drilling tool which characterized in that: comprises a drill bit, wherein the drill bit comprises a drill bit tail part (1) and a drill bit head part (2);

the drill bit tail part (1) comprises an annular support (101) and an inner screw (102), the inner screw (102) is located in the middle of the annular support (101), a threaded hole (103) is formed in the front end face of the inner screw (102), a connecting frame (104) is fixedly installed on the front side of the annular support (101), a plurality of polycrystalline diamond composite drill blocks (105) are fixedly installed on the connecting frame (104), and a limiting column (106) is fixedly installed on one end face, far away from the annular support (101), of the connecting frame (104);

the drill head (2) comprises a conical drill point (201) and a connecting ring (203), wherein the connecting ring (203) is positioned at the rear side of the conical drill point (201);

a threaded column (202) is fixedly mounted on the rear surface of the conical drill point (201), the threaded column (202) is perpendicular to the rear surface of the conical drill point (201), and the threaded column (202) is in threaded connection with the inside of the threaded hole (103);

the inner wall of the connecting ring (203) is fixedly provided with a connecting plate (204), a limiting hole (205) is formed in the connecting plate (204), and the limiting column (106) is inserted in the limiting hole (205);

fixed mounting has four guide posts (206) that are the annular arrangement on the rear surface of toper drill point (201), guide post (206) and connecting plate (204) crisscross distribution, guide post (206) are kept away from the one end of toper drill point (201) and are passed connecting ring (203), and guide post (206) keep away from on the terminal surface of toper drill point (201) fixed mounting have a baffle (207), the side of week of guide post (206) just is located and has cup jointed a spring (208) between toper drill point (201) and connecting ring (203).

2. The fully automatic screw drill according to claim 1, wherein the number of the connecting frames (104) is four, and four connecting frames (104) are arranged in a ring shape.

3. The fully automatic screw drill according to claim 1, wherein the number of the polycrystalline diamond compact drill blocks (105) is three, and the three polycrystalline diamond compact drill blocks (105) are arranged linearly.

4. The fully automatic screw drill according to claim 1, wherein the stop post (106) is a steel alloy member, and the stop post (106) and the inner screw (102) are parallel.

5. The fully automatic screw drill according to claim 1, wherein the number of the connection plates (204) is four, and four connection plates (204) are arranged in a ring shape.

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