CN218816251U

CN218816251U - Mining combined reaming diamond bit

Info

Publication number: CN218816251U
Application number: CN202222365846.8U
Authority: CN
Inventors: 林长明; 周浩然; 陈道林
Original assignee: Anhui Zhongtan Machinery Manufacturing Co ltd
Current assignee: Anhui Zhongtan Machinery Manufacturing Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-04-07
Anticipated expiration: 2032-09-06

Abstract

The utility model relates to a diamond bit technical field just discloses a mining combination reaming diamond bit, including the connecting seat, the bottom of connecting seat has set gradually one-level reaming bit body, second grade reaming bit body and tertiary reaming bit body, be provided with bit body locking mechanism on the connecting seat, be provided with cutting mechanism on one-level reaming bit body, second grade reaming bit body and the tertiary reaming bit body respectively. This mining combination reaming diamond bit is combination mounting's mode through bit body and cutting mechanism to after the drill bit produces great wearing and tearing, realized conveniently according to the wearing and tearing condition, maintain respectively each part and change, effectively avoid integral type drill bit maintenance and change can produce the problem of higher cost.

Description

Mining combined reaming diamond bit

Technical Field

The utility model relates to a diamond bit technical field specifically is a mining combination reaming diamond bit.

Background

The diamond bit is a drilling tool for stratum drilling, has the characteristics of large pressure resistance, strong abrasion resistance and good impact resistance, is suitable for drilling compact conglomerates which are difficult to drill for PDC bits and roller bits and have high hardness and high abrasiveness stratums, and is frequently used when drilling high-hardness stratums in the field of coal mine drilling.

However, the diamond bit is also consumed in the high-speed grinding operation, and needs to be replaced in time, and the conventional diamond bit is welded in an integrated manner, so that subsequent maintenance needs to be replaced integrally, and higher cost can be generated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art's not enough, the utility model provides a mining combination reaming diamond bit possesses the convenience according to the wearing and tearing condition, maintains respectively each part and changes advantages such as, has solved the maintenance of integral type drill bit and has changed the problem that can produce higher cost.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mining combination reaming diamond bit, includes the connecting seat, the bottom of connecting seat has set gradually one-level reaming bit body, second grade reaming bit body and tertiary reaming bit body, be provided with bit body locking mechanism on the connecting seat, be provided with cutting mechanism on one-level reaming bit body, second grade reaming bit body and the tertiary reaming bit body respectively.

Preferably, bit body locking mechanism includes well core rod, gag lever post, spacing ring, lock nut No. one, well core rod is installed on the connecting seat, well core rod runs through one-level reaming bit body, second grade reaming bit body and tertiary reaming bit body and one-level reaming bit body, second grade reaming bit body and tertiary reaming bit body swing joint respectively in proper order, the gag lever post radially runs through one-level reaming bit body, second grade reaming bit body, tertiary reaming bit body and well core rod respectively, the spacing ring establish respectively on one-level reaming bit body, second grade reaming bit body, tertiary reaming bit body, the spacing ring is through lock nut and gag lever post fixed connection No. one.

Preferably, cutting mechanism includes diamond compact piece, inserted bar, no. two lock nut, the embedded groove has evenly been seted up at the interval respectively on one-level reaming bit body, second grade reaming bit body and the tertiary reaming bit body, the inserted bar is installed in the embedded groove, set up the slot that corresponds with the inserted bar on the diamond compact piece, diamond compact piece inlays to be established in the embedded groove, the inserted bar is pegged graft with the slot, diamond compact piece through No. two lock nut respectively with one-level reaming bit body, second grade reaming bit body and tertiary reaming bit body fixed connection.

Preferably, the connecting seat is provided with an external thread corresponding to the internal thread of the external drill rod.

Preferably, the inner diameter of the limiting ring is respectively consistent with the outer diameters of the primary reaming bit body, the secondary reaming bit body and the tertiary reaming bit body.

Preferably, the length of the central rod is the sum of the thicknesses of the primary reaming bit body, the secondary reaming bit body and the tertiary reaming bit body.

Preferably, the thickness of the diamond compact is consistent with that of the embedded groove, and the length and the width of the diamond compact are both larger than those of the embedded groove.

Compared with the prior art, the utility model provides a mining combination reaming diamond bit possesses following beneficial effect:

1. this mining combination reaming diamond bit is combination mounting's mode through bit body and cutting mechanism to after the drill bit produces great wearing and tearing, realized conveniently according to the wearing and tearing condition, maintain respectively each part and change, effectively avoid integral type drill bit maintenance and change can produce the problem of higher cost.

2. According to the mining combined reaming diamond drill bit, the primary reaming drill bit body, the secondary reaming drill bit body and the tertiary reaming drill bit body are respectively arranged and matched with the cutting mechanism on the primary reaming drill bit body, so that the drilling efficiency is improved while the aperture is ensured.

Drawings

FIG. 1 is a schematic structural view of the entire front side of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic structural view of the front cross-section of the present invention.

Wherein: 1. a connecting seat; 2. a primary reamer bit body; 3. a secondary reaming bit body; 4. a third stage reaming body; 5. a bit body locking mechanism; 501. a center pole; 502. a limiting rod; 503. a limiting ring; 504. a first locking nut; 6. a cutting mechanism; 601. a diamond compact; 602. inserting a rod; 603. and a second locking nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the bottom of the connecting seat 1 is sequentially provided with a first-stage reaming bit body 2, a second-stage reaming bit body 3 and a third-stage reaming bit body 4, the connecting seat 1 is provided with a bit body locking mechanism 5, and the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4 are respectively provided with a cutting mechanism 6, so that various parts can be respectively maintained and replaced conveniently according to the wear condition, and the problem of high cost caused by maintenance and replacement of an integrated drill bit is effectively avoided.

Referring to fig. 3, the bit body locking mechanism 5 includes a central rod 501, a limiting rod 502, a limiting ring 503, and a first locking nut 504, the central rod 501 is installed on the connecting seat 1, the central rod 501 sequentially penetrates through the first-stage reaming bit body 2, the second-stage reaming bit body 3, the third-stage reaming bit body 4, and the central rod 4, respectively, the limiting rod 502 radially penetrates through the first-stage reaming bit body 2, the second-stage reaming bit body 3, the third-stage reaming bit body 4, and the central rod 501, the limiting ring 502 is movably connected with the first-stage reaming bit body 2, the second-stage reaming bit body 3, and the third-stage reaming bit body 4, respectively, the limiting ring 503 is sleeved on the first-stage reaming bit body 2, the second-stage reaming bit body 3, and the third-stage reaming bit body 4, and the limiting ring 503 is fixedly connected with the limiting rod 502 through the first locking nut 504, so as to facilitate installation and disassembly of the first-stage reaming bit body 2, the second-stage reaming bit body 3, and the third-stage reaming bit body 4.

Referring to fig. 3, the cutting mechanism 6 includes a diamond composite sheet 601, an insert rod 602, a second locking nut 603, an embedded groove is uniformly formed in each of the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4 at intervals, the insert rod 602 is installed in the embedded groove, a slot corresponding to the insert rod 602 is formed in the diamond composite sheet 601, the diamond composite sheet 601 is embedded in the embedded groove, the insert rod 602 is inserted into the slot, the diamond composite sheet 601 is respectively fixedly connected with the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4 through the second locking nut 603, the cutting mechanism 6 is conveniently installed on each of the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4, and the drilling efficiency is improved.

Referring to fig. 1-2, the connecting base 1 is provided with external threads corresponding to the internal threads of the external drill rod, so as to facilitate the connection of the drill bit to external drilling equipment.

Referring to fig. 1-3, the inner diameter of the stop collar 503 is consistent with the outer diameters of the primary, secondary and tertiary

reamer bit bodies

2, 3, 4, respectively, to facilitate complete stabilization of the bit bodies and prevent the bit bodies from wobbling.

Referring to fig. 1-3, the length of central rod 501 is the sum of the thicknesses of primary, secondary, and tertiary

reamer bit bodies

2, 3, and 4 to facilitate loading of primary, secondary, and tertiary

reamer bit bodies

2, 3, and 4.

Referring to fig. 1-2, the thickness of the diamond compact 601 is the same as that of the embedded groove, and the length and width of the diamond compact 601 are both greater than those of the embedded groove, so that the diamond compact 601 can be conveniently drilled.

When the connecting seat is used, the connecting seat 1 is in threaded connection with an external drill rod, the connecting seat is aligned with the central rod 501 and sequentially arranged into the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4, the limiting rod 502 is respectively arranged into the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4, the limiting rings 503 are respectively sleeved on the outer sides of the limiting rods 502, the first-stage reaming bit body 2, the second-stage reaming bit body 3 and the third-stage reaming bit body 4 are respectively fixed through the first locking nuts 504, and the combined installation of the bit bodies is completed.

The insert grooves in the diamond composite sheets 601 are aligned with the insert rods 602 and inserted, so that the diamond composite sheets 601 are respectively embedded into the embedded grooves in the primary reaming bit body 2, the secondary reaming bit body 3 and the tertiary reaming bit body 4, and then the diamond composite sheets 601 are fixed through the second locking nuts 603, and the combined installation of the cutting mechanism 6 is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mining combination reaming diamond bit, includes connecting seat (1), its characterized in that: the novel reamer is characterized in that a first-stage reaming bit body (2), a second-stage reaming bit body (3) and a third-stage reaming bit body (4) are sequentially arranged at the bottom of the connecting seat (1), a bit body locking mechanism (5) is arranged on the connecting seat (1), and cutting mechanisms (6) are respectively arranged on the first-stage reaming bit body (2), the second-stage reaming bit body (3) and the third-stage reaming bit body (4).

2. The mining combination reaming diamond bit of claim 1, wherein: bit body locking mechanism (5) include well core rod (501), gag lever post (502), spacing ring (503), lock nut (504), well core rod (501) is installed on connecting seat (1), well core rod (501) runs through one-level reaming bit body (2), second grade reaming bit body (3) and tertiary reaming bit body (4) and one-level reaming bit body (2), second grade reaming bit body (3) and tertiary reaming bit body (4) swing joint respectively in proper order, spacing rod (502) radially runs through one-level reaming bit body (2), second grade reaming bit body (3), tertiary reaming bit body (4) and well core rod (501) swing joint respectively, spacing ring (503) cover is established on one-level reaming bit body (2), second grade reaming bit body (3), tertiary reaming bit body (4) respectively, spacing ring (503) overlaps through a lock nut (504) and gag lever post (502) fixed connection.

3. The mining combination reaming diamond bit of claim 1, wherein: cutting mechanism (6) are including diamond compact piece (601), inserted bar (602), no. two lock nut (603), the embedded groove has evenly been seted up at the interval respectively on one-level reaming bit body (2), second grade reaming bit body (3) and tertiary reaming bit body (4), inserted bar (602) are installed in the embedded groove, set up the slot that corresponds with inserted bar (602) on diamond compact piece (601), diamond compact piece (601) are inlayed and are established in the embedded groove, inserted bar (602) are pegged graft with the slot, diamond compact piece (601) through No. two lock nut (603) respectively with one-level reaming bit body (2), second grade reaming bit body (3) and tertiary reaming bit body (4) fixed connection.

4. The mining combination reaming diamond bit of claim 1, wherein: and the connecting seat (1) is provided with an external thread corresponding to the internal thread of the external drill rod.

5. The mining combination reaming diamond bit of claim 2, characterized in that: the inner diameter of the limiting ring (503) is consistent with the outer diameters of the primary reaming bit body (2), the secondary reaming bit body (3) and the tertiary reaming bit body (4) respectively.

6. The mining combination reaming diamond bit of claim 2, characterized in that: the length of the central rod (501) is the sum of the thicknesses of the first-stage reaming bit body (2), the second-stage reaming bit body (3) and the third-stage reaming bit body (4).

7. A mining combination reaming diamond drill bit according to claim 3, characterized in that: the thickness of the diamond compact (601) is consistent with that of the embedded groove, and the length and the width of the diamond compact (601) are both larger than those of the embedded groove.