CN213234974U

CN213234974U - PDC drill bit of coring

Info

Publication number: CN213234974U
Application number: CN202022032195.1U
Authority: CN
Inventors: 张新; 孙峰; 张兴
Original assignee: Shijiazhuang Gangfeng Tools Co ltd
Current assignee: Shijiazhuang Gangfeng Tools Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-18
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a coring PDC drill bit, including boring body, drilling rod, adjusting part and coupling assembling, bore the body lower extreme and be fixed with the joint, drilling rod screw thread closes the cover soon and is established on the joint, the coupling assembling is detachable installs on boring body surface and is connected with the drilling rod, the coupling assembling includes clamp, dead lever, swing joint board and chucking board, the clamp fastening is installed on boring body surface, and both sides are fixed with the dead lever perpendicularly, the swing joint board cover is established and is installed the dead lever, and the lower extreme movable mounting relative cover is established the chucking board in drilling rod both sides, the chucking board overlooks to "Z" type, and the tip installs connecting bolt; the utility model discloses a be provided with coupling assembling, can connect spacingly to the drilling rod of installation, increase its installation fastening nature, reduce because the probability that the drilling rod breaks away from is caused in drill bit work to reduce the factor that influences drill bit work, whole subassembly easy to assemble and dismantlement do not influence the normal use of drill bit.

Description

PDC drill bit of coring

Technical Field

The utility model belongs to the technical field of the drill bit, concretely relates to PDC drill bit of coring.

Background

In oil drilling, a drill used for core drilling is conventionally a core drill (in general core drilling, the drill is called a drill or a core drill). The types of coring bits are many, and the structural differences are also large, and generally, there are cone coring bits, drag coring bits, and barrel coring bits. The PDC coring bit is one of the PDC bits, and the PDC bit is a diamond compact which is synthesized into a special superhard material at a high temperature.

The end part of some existing coring bits is provided with a connector, a drill rod is installed on the connector in a screwing mode through threads, when the whole bit works, the drill rod and the connector are prone to rotating relatively, the problem that the drill rod and the connector are separated from each other to affect the work is caused, and therefore the coring PDC bit is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PDC drill bit of coring to some coring bit tip that propose have the joint in solving above-mentioned background art, the joint closes soon through the screw thread and installs the drilling rod, at whole drill bit during operation, appears drilling rod and joint easily and appears rotating relatively, causes the two to break away from the problem that influences work.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a PDC drill bit of coring, includes bores body, drilling rod, adjusting part and coupling assembling, bore the body lower extreme and be fixed with the joint, drilling rod screw thread closes the cover soon and establishes on the joint, coupling assembling is detachable installs on boring the body surface and is connected with the drilling rod, coupling assembling includes clamp, dead lever, swing joint board and chucking board, the clamp fastening is installed on boring the body surface, and both sides vertical fixation has the dead lever, the swing joint board cover is established and is installed at the dead lever, and lower extreme movable mounting has relative cover to establish the chucking board in the drilling rod both sides, the chucking board overlooks and is "Z" type, and the end mounting has connecting bolt.

Preferably, the movable connecting plate can move oppositely or oppositely along the fixed rod, and a rubber layer in contact with the surface of the drill rod is fixed on the inner surface of the clamping plate.

Preferably, the movable connecting plate comprises an upper sleeve plate, a lower movable plate and a limiting rod, the lower end of the upper sleeve plate is U-shaped and is sleeved at the upper end of the lower movable plate, a plurality of limiting holes are formed in the upper end of the lower movable plate along the length of the upper end of the lower movable plate, the limiting rod can penetrate through the upper sleeve plate and the limiting holes and is exposed outside, and the vertical height of the movable connecting plate can be adjusted through the limiting rod.

Preferably, the adjusting assembly comprises a fixed convex plate, two movable blocks, an adjusting rod and a limiting spiral ring, the fixed convex plate is vertically fixed on the inner surface of the movable connecting plate, the two movable blocks are fixed on the surface of the end part of the clamping plate and symmetrically positioned on two sides of the fixed convex plate, and the adjusting rod movably penetrates through the fixed convex plate and the movable blocks to be exposed outside.

Preferably, the limiting spiral ring is sleeved at the end of the adjusting rod in a threaded manner, and the surface of the limiting spiral ring can be in contact with the surface of the movable block for limiting.

Preferably, a cutting head is fixed at the upper end of the drill body.

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

(1) the utility model discloses a be provided with coupling assembling, can connect spacingly to the drilling rod of installation, increase its installation fastening nature, reduce because the probability that the drilling rod breaks away from is caused in drill bit work to reduce the factor that influences drill bit work, whole subassembly easy to assemble and dismantlement do not influence the normal use of drill bit.

(2) The utility model discloses a be provided with adjusting part, can adjust according to drilling rod diameter size, multiplicable whole coupling assembling's application range, and simple structure adjusts the convenience, guarantees that the chucking board can all the time with drilling rod surface contact.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the connection assembly of the present invention;

fig. 3 is a schematic top view of the adjusting assembly of the present invention;

FIG. 4 is a schematic side view of a partial structure of the movable connecting plate of the present invention;

in the figure: 1. drilling a body; 2. a drill stem; 3. a joint; 4. a connecting assembly; 41. clamping a hoop; 42. fixing the rod; 43. a movable connecting plate; 431. an upper sheathing plate; 432. a movable plate is lowered; 433. a limiting rod; 44. a chucking plate; 5. a cutting head; 6. an adjustment assembly; 61. fixing the convex plate; 62. a movable block; 63. adjusting a rod; 64. and (4) limiting a spiral ring.

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 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. 1-4, the present invention provides a technical solution: a core-taking PDC drill bit comprises a drill body 1, a drill rod 2, an adjusting component 6 and a connecting component 4, wherein a connector 3 is fixed at the lower end of the drill body 1, the drill rod 2 is screwed and sleeved on the connector 3, the connecting component 4 is detachably installed on the surface of the drill body 1 and is connected with the drill rod 2, the connecting component 4 comprises a hoop 41, a fixed rod 42, a movable connecting plate 43 and a clamping plate 44, the hoop 41 is fixedly installed on the surface of the drill body 1, the fixed rod 42 is vertically fixed on two sides of the hoop, the movable connecting plate 43 is sleeved on the fixed rod 42, the clamping plate 44 is movably installed at the lower end of the movable connecting plate and oppositely sleeved on two sides of the drill rod 2, the clamping plate 44 is in a Z shape in a depression mode, a connecting bolt is installed at the end part, the connecting component 4 is arranged, the installed drill rod 2, thereby reduce the factor that influences drill bit work, whole subassembly is easy to assemble and is dismantled, does not influence the normal use of drill bit.

In this embodiment, the movable connecting plate 43 is preferably movable along the fixed rod 42 toward and away from each other, and a rubber layer contacting the surface of the drill rod 2 is fixed on the inner surface of the clamping plate 44, and the rubber layer can increase the frictional resistance and the tightness of the installation of the clamping plate 44 on the drill rod 2.

In this embodiment, preferably, the movable connecting plate 43 includes an upper sleeve plate 431, a lower movable plate 432 and a limiting rod 433, the lower end of the upper sleeve plate 431 is U-shaped and is sleeved on the upper end of the lower movable plate 432, a plurality of limiting holes are arranged along the length of the upper end of the lower movable plate 432, the limiting rod 433 can penetrate through the upper sleeve plate 431 and the limiting holes to be exposed to the outside, the vertical height of the movable connecting plate 43 can be adjusted through the limiting rod 433, the movable connecting plate 43 can be adjusted and changed according to the position of the drill rod 2, the clamping plate 44 is located at a proper clamping connection position, the fastening and the limiting are facilitated, and the installation and the fastening performance of the drill rod.

In this embodiment, preferably, the adjusting assembly 6 includes a fixed protruding plate 61, two movable blocks 62, an adjusting rod 63 and a limiting spiral ring 64, the fixed protruding plate 61 is vertically fixed on the inner surface of the movable connecting plate 43, the two movable blocks 62 are fixed on the end surface of the clamping plate 44 and symmetrically located on the two sides of the fixed protruding plate 61, the adjusting rod 63 movably penetrates through the fixed protruding plate 61 and the movable blocks 62 to be exposed outside, the limiting spiral ring 64 is screwed and sleeved on the end of the adjusting rod 63, the surface of the adjusting rod can be in surface contact with the movable blocks 62 for limitation, the adjusting assembly 6 is provided, the adjusting assembly can be adjusted according to the diameter of the drill rod 2, the application range of the whole connecting assembly 4 can be increased, the structure is simple, and the adjustment is.

In this embodiment, it is preferable that a cutting head 5 is fixed to the upper end of the drill body 1, and the cutting head 5 can cut a target point for drilling.

The utility model discloses a theory of operation and use flow: the utility model discloses when using, can install clamp 41 fastening on the surface of drilling body 1 and be close to joint 3, and chucking plate 44 is located drilling rod 2 both sides relatively, along with drilling rod 2 cover establish install on joint 3, can be with relative chucking plate 44 relative movement, drive swing joint board 43 along dead lever 42 relative movement, surface rubber layer extrusion contact drilling rod 2 surface in two chucking plates 44 of homonymy, again with two relative chucking plates 44 through connecting bolt connection fixed, thereby let the drilling rod 2 surface of chucking plate 44 fastening installation, through being provided with coupling assembling 4, can connect spacing to the drilling rod 2 of installation, increase its installation fastening, reduce the probability that drilling rod 2 breaks away from because of drill bit work causes, thereby reduce the factor that influences drill bit work, whole subassembly is convenient to install and dismantle, do not influence the normal use of drill bit; according to the diameter of the drill rod 2, before the clamping plates 44 are arranged on the drill rod 2, the two clamping plates 44 on the same side face each other or back to back along the adjusting rod 63, when the relative distance between the two clamping plates is timely separated and reunion, the limiting spiral ring 64 is sleeved on the adjusting rod 63 and is in contact limiting with the movable block 62.

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 PDC drill bit of coring, includes bores body (1), drilling rod (2), adjusting part (6) and coupling assembling (4), bore body (1) lower extreme and be fixed with joint (3), drilling rod (2) screw thread closes the cover soon and establishes on joint (3), its characterized in that: coupling assembling (4) are detachable installs and are being connected on boring body (1) surface and with drilling rod (2), coupling assembling (4) are including clamp (41), dead lever (42), swing joint board (43) and chucking plate (44), clamp (41) fastening installation is on boring body (1) surface, and both sides vertical fixation has dead lever (42), swing joint board (43) cover is established and is installed at dead lever (42), and lower extreme movable mounting has relative cover to establish chucking plate (44) in drilling rod (2) both sides, chucking plate (44) are pitched and are regarded as "Z" type, and the end mounting has connecting bolt.

2. The coring PDC bit of claim 1, wherein: the movable connecting plate (43) can move oppositely or oppositely along the fixed rod (42), and a rubber layer in contact with the surface of the drill rod (2) is fixed on the inner surface of the clamping plate (44).

3. The coring PDC bit of claim 1, wherein: the movable connecting plate (43) comprises an upper sleeve plate (431), a lower movable plate (432) and a limiting rod (433), the lower end of the upper sleeve plate (431) is U-shaped, the upper end of the lower movable plate (432) is sleeved with the lower sleeve plate, a plurality of limiting holes are formed in the upper end of the lower movable plate (432) along the length of the upper end of the lower movable plate, the limiting rod (433) can penetrate through the upper sleeve plate (431) and the limiting holes to be exposed to the outside, and the vertical height of the movable connecting plate (43) can be adjusted through the limiting rod (433).

4. The coring PDC bit of claim 1, wherein: the adjusting assembly (6) comprises a fixed convex plate (61), movable blocks (62), adjusting rods (63) and limiting spiral rings (64), the fixed convex plate (61) is vertically fixed on the inner surface of the movable connecting plate (43), the movable blocks (62) are fixed on the end surface of the clamping plate (44) and are symmetrically located on two sides of the fixed convex plate (61), and the adjusting rods (63) movably penetrate through the fixed convex plate (61) and the movable blocks (62) to be exposed outside.

5. The coring PDC bit of claim 4, wherein: the limiting spiral ring (64) is sleeved at the end part of the adjusting rod (63) in a threaded screwing manner, and the surface of the limiting spiral ring can be in contact with the surface of the movable block (62) for limiting.

6. The coring PDC bit of claim 1, wherein: the upper end of the drill body (1) is fixed with a cutting head (5).