CN218862546U

CN218862546U - Drill bit structure stable in installation

Info

Publication number: CN218862546U
Application number: CN202221886055.3U
Authority: CN
Inventors: 周志专; 周国兵; 唐铁山; 杜承清; 周小兵; 徐汉斌
Original assignee: Hubei Jiayu Drill Tool Co ltd
Current assignee: Hubei Jiayu Drill Tool Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-04-14
Anticipated expiration: 2032-07-22

Abstract

The utility model discloses a drill bit structure that installation is stable, including the drill bit main part, its characterized in that, the link of drill bit main part is provided with the external splines, still includes the installation sleeve, and the internal splines have been seted up to installation sleeve tip, and the external splines are located in the internal splines to make drill bit main part and installation muffjoint, still including solid fixed ring, solid fixed ring cover is located on the drill bit main part, gu fixed ring and installation muffjoint. The utility model relates to a drill bit structure with stable installation, which is inserted into an installation sleeve through an external spline and an internal spline drill bit main body and prevents the drill bit main body from rotating in the installation sleeve; make drill bit main part and installation sleeve fixed connection through solid fixed ring, increase the stability of drill bit main part installation, and make things convenient for the dismouting, increased work efficiency.

Description

Install stable drill bit structure

Technical Field

The utility model relates to a drill bit field for the well drilling, in particular to stable drill bit structure of installation.

Background

During drilling, the drill bit is the primary tool for breaking rock and the borehole is formed by the drill bit breaking rock. The length of time a wellbore can take to form is related to the degree of mutual matching between the drill bit and the formation, in addition to the characteristics of the rock of the formation being drilled and the properties of the drill bit itself. The reasonable type selection of the drill bit plays an important role in improving the drilling speed and reducing the comprehensive drilling cost. The drill bit is usually installed at the end part of a drill rod in the drilling process, but the drill bit is easy to loosen, so that the drilling progress is influenced, the working efficiency is reduced, and the requirement of the drill bit for modern drilling cannot be met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a stable drill bit structure of installation.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a drill bit structure that installation is stable, including the drill bit main part, a serial communication port, the link of drill bit main part is provided with the external splines, still includes the installation sleeve, the internal splines have been seted up to installation sleeve tip, the external splines are located in the internal splines to make drill bit main part and installation muffjoint, still include solid fixed ring, gu fixed ring cover is located in the drill bit main part, gu fixed ring with installation muffjoint.

As an optimal technical scheme of the utility model, the drill bit main part includes cutting portion and connection handle, the connection handle is located the afterbody of cutting portion, the coaxial locating of external splines on the connection handle, and its cylinder portion's external diameter is greater than the external diameter of connection handle, solid fixed ring cover is located on the connection handle.

As a preferred technical scheme of the utility model, gu fixed ring includes go-between and spacing ring, the spacing ring with the go-between is all overlapped and is located on the connection handle, the spacing ring is located the tip of go-between, and its internal diameter with the external diameter looks adaptation of connection handle, be provided with the internal thread on the inner wall of go-between, and its internal diameter with telescopic external diameter looks adaptation is installed.

As a preferred technical scheme of the utility model, be provided with the external screw thread in the telescopic periphery of installation, the go-between passes through the internal thread with the installation sleeve external screw thread threaded connection.

As an optimized technical scheme of the utility model, the tip orientation of connecting handle the passageway has been seted up to the cutting portion, the water hole has been seted up in the cutting portion, the water hole with the passageway intercommunication.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the drill bit main body is inserted into the mounting sleeve through the external spline and the internal spline, and the drill bit main body is prevented from rotating in the mounting sleeve;

2. make drill bit main part and installation sleeve fixed connection through solid fixed ring, increase the stability of drill bit main part installation, and make things convenient for the dismouting, increased work efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the drill bit of the present invention;

in the figure: 1. a drill bit body; 11. a cutting portion; 12. a connecting handle; 13. an external spline; 14. a channel; 15. water holes; 2. installing a sleeve; 21. an internal spline; 22. an external thread; 3. a fixing ring; 31. a connecting ring; 32. a limiting ring; 33. an internal thread.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

As shown in fig. 1-3, the utility model provides a drill bit structure of installation stability, including drill bit main part 1, its characterized in that, the link of drill bit main part 1 is provided with external splines 13, still includes installation sleeve 2, and internal splines 21 has been seted up to 2 tip of installation sleeve, and internal splines 21 is located to external splines 13 to make drill bit main part 1 be connected with installation sleeve 2, still including solid fixed ring 3, gu fixed ring 3 cover is located on drill bit main part 1, gu fixed ring 3 is connected with installation sleeve 2.

Further, the drill bit main body 1 comprises a cutting portion 11 and a connecting handle 12, the connecting handle 12 is arranged at the tail portion of the cutting portion 11, the external splines 13 are coaxially arranged on the connecting handle 12, the outer diameter of the cylindrical portion of the external splines is larger than that of the connecting handle 12, and the fixing ring 3 is sleeved on the connecting handle 12.

The drill bit body 1 is mounted in the mounting sleeve 2 by the external splines 13 on the connecting shank 12 engaging with the internal splines 21 of the mounting sleeve 2 and the drill bit body 1 is prevented from rotating in the mounting sleeve 2.

Further, the fixing ring 3 comprises a connecting ring 31 and a limiting ring 32, the limiting ring 32 and the connecting ring 31 are both sleeved on the connecting handle 12, the limiting ring 32 is arranged at the end of the connecting ring 31, the inner diameter of the limiting ring is matched with the outer diameter of the connecting handle 12, an inner thread 33 is arranged on the inner wall of the connecting ring 31, and the inner diameter of the limiting ring is matched with the outer diameter of the mounting sleeve 2.

Further, an external thread 22 is provided on the outer circumference of the mounting sleeve 2, and the connection ring 31 is threadedly coupled with the external thread 22 of the mounting sleeve 2 through an internal thread 33.

The internal thread 33 of the connecting ring 31 is in threaded connection with the external thread 22 on the mounting sleeve 2, and the limiting ring 32 has a limiting effect on the drill bit body 1, so that the drill bit body 1 and the mounting sleeve 2 are fixed.

Furthermore, a channel 14 is formed in the end part of the connecting handle 12 facing the cutting part 11, a water hole 15 is formed in the cutting part 11, and the water hole 15 is communicated with the channel 14.

Specifically, the connecting handle 12 of the drill bit main body 1 is inserted into the mounting sleeve 2, and is inserted into the internal spline 21 of the mounting sleeve 2 through the external spline 13 on the connecting handle 12, so that the drill bit main body 1 cannot rotate on the mounting sleeve 2, and is in threaded connection with the external thread 22 on the mounting sleeve 2 through the internal thread 33 of the connecting ring 31, and the limiting ring 32 plays a role in limiting the drill bit main body 1, so that the drill bit main body 1 and the mounting sleeve 2 are fixed; the mounting sleeve 2 is connected with a powered up drill to drive the drill body 1 to rotate.

The utility model relates to a drill bit structure with stable installation, which is inserted into a mounting sleeve through an external spline and an internal spline drill bit main body and prevents the drill bit main body from rotating in the mounting sleeve; make drill bit main part and installation sleeve fixed connection through solid fixed ring, increase the stability of drill bit main part installation, and make things convenient for the dismouting, increased work efficiency.

Finally, it should be noted that: although the present invention 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a stable drill bit structure of installation, includes drill bit main part (1), its characterized in that, the link of drill bit main part (1) is provided with external splines (13), still includes installation sleeve (2), internal splines (21) have been seted up to installation sleeve (2) tip, external splines (13) are located in internal splines (21) to make drill bit main part (1) be connected with installation sleeve (2), still including solid fixed ring (3), gu fixed ring (3) cover is located on drill bit main part (1), gu fixed ring (3) with installation sleeve (2) are connected.

2. A drill bit structure with stable installation according to claim 1, characterized in that the drill bit body (1) comprises a cutting part (11) and a connecting handle (12), the connecting handle (12) is arranged at the tail part of the cutting part (11), the external splines (13) are coaxially arranged on the connecting handle (12), the external diameter of the cylindrical part of the external splines is larger than that of the connecting handle (12), and the fixing ring (3) is sleeved on the connecting handle (12).

3. A drill bit structure with stable installation according to claim 2, characterized in that the fixing ring (3) comprises a connecting ring (31) and a limiting ring (32), the limiting ring (32) and the connecting ring (31) are both sleeved on the connecting handle (12), the limiting ring (32) is arranged at the end of the connecting ring (31), the inner diameter of the limiting ring is matched with the outer diameter of the connecting handle (12), the inner wall of the connecting ring (31) is provided with an internal thread (33), and the inner diameter of the limiting ring is matched with the outer diameter of the installing sleeve (2).

4. A drill bit construction with stable installation according to claim 3, characterized in that the mounting sleeve (2) is provided with an external thread (22) on its outer circumference, the connecting ring (31) being screwed with the external thread (22) of the mounting sleeve (2) via the internal thread (33).

5. A drill bit structure with stable installation according to any one of claims 2-4, characterized in that the end of the connecting shank (12) opens into the cutting part (11) with a channel (14), the cutting part (11) opens into a water hole (15), and the water hole (15) is communicated with the channel (14).