CN211598532U

CN211598532U - PDC drill bit and drilling device

Info

Publication number: CN211598532U
Application number: CN202020114810.0U
Authority: CN
Inventors: 韩志彪; 檀大冰; 李瑞亮
Original assignee: Tianjin Hanjie Technology Co ltd
Current assignee: Tianjin Hanjie Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-29
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a PDC drill bit and drilling equipment belongs to drilling equipment technical field. The PDC drill bit comprises a drill seat, a connecting seat and a cutting part. The drill holder comprises a first connecting block and a clamping block, the sent clamping block is fixed to the bottom of the connecting block, the connecting seat comprises a second connecting block and a fixing column, the fixing column is fixed to the bottom of the second connecting block, the cutting portion comprises a cutting seat, an elastic piece, a movable plate, a cutting tooth and a locking piece, the cutting seat is fixed to the end portion of the first connecting block, a groove is formed in the cutting seat, a limiting plate is fixed to the bottom of the cutting tooth, an inserting block is fixed to the bottom of the limiting plate, the inserting block is inserted into the groove, the locking piece penetrates through the groove, and the locking piece is in threaded connection with the inserting block. The utility model discloses when the tooth that cuts of PDC drill bit takes place to damage, can conveniently change it, it can be more convenient to let the use.

Description

PDC drill bit and drilling device

Technical Field

The utility model relates to a drilling equipment field particularly, relates to PDC drill bit and drilling equipment.

Background

The task of drilling a borehole from the surface using mechanical equipment or manual labor is known as drilling. Generally refers to the engineering of drilling boreholes and large diameter water-supply wells for the exploration or exploitation of liquid and gaseous minerals such as oil, gas, and the like. The application of well drilling in national economic construction is extremely wide.

At present, the cutting teeth on the surface of the PDC drill bit of the existing drilling equipment are generally embedded into the drill bit, and are inconvenient to replace when being damaged.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a PDC drill bit and drilling equipment aims at improving the tooth of cutting on PDC drill bit surface, changes inconvenient problem when taking place the damage.

The utility model discloses a realize like this:

in a first aspect, the present invention provides a PDC drill bit and drilling apparatus, including a drill base, a connecting seat and a cutting portion.

The drill seat comprises a first connecting block and a clamping block, the sent clamping block is fixed at the bottom of the connecting block, the connecting seat comprises a second connecting block and a fixed column, the clamping block is fixed inside the second connecting block, the fixed column is fixed at the bottom of the second connecting block, the cutting part comprises a cutting seat, an elastic piece, a movable plate, cutting teeth and a locking piece, the cutting seat is fixed at the end part of the first connecting block, a groove is formed inside the cutting seat, the movable plate is connected inside the groove in a sliding manner, one end of the elastic piece is fixed at the bottom of the movable plate, the other end of the elastic piece is fixed at the bottom of the groove, a limiting plate is fixed at the bottom of the cutting teeth, an inserting block is fixed at the bottom of the limiting plate, the inserting block is inserted into the groove, and the locking piece penetrates through the groove, the retaining member is in threaded connection with the insert block.

The utility model discloses an in the embodiment, the both sides of fixture block are fixed with the stopper, the stopper symmetry sets up.

The utility model discloses an in an embodiment, the inside of second connecting block seted up with fixture block assorted draw-in groove, the bilateral symmetry of draw-in groove seted up with stopper phase-match spacing groove.

In an embodiment of the present invention, a fixing member is penetrated through a surface of the second connecting block, and an end of the fixing member extends to an inside of the clamping groove.

The utility model discloses an in one embodiment, the surface of fixture block seted up with mounting assorted first screw hole.

In an embodiment of the present invention, the cutting seat has a surface provided with chip grooves, and the chip grooves are located between the cutting teeth.

The utility model discloses an in the embodiment, the bottom of recess is fixed with first locating piece, the bottom of fly leaf be fixed with first locating piece assorted second locating piece, the both ends of elastic component cup joint to be fixed first locating piece with between the second locating piece.

The utility model discloses an in an embodiment, the upper end of recess seted up with limiting plate assorted constant head tank.

The utility model discloses an in one embodiment, the inside of inserted block seted up with retaining member assorted second screw hole.

In a second aspect, the present invention provides a drilling device, including the above drill bit and a drilling apparatus, the drilling apparatus is a drilling machine, and the fixing column is configured to be fixedly connected to an output end of the drilling apparatus.

The utility model has the advantages that: the utility model discloses a PDC drill bit and drilling equipment that above-mentioned design obtained, when the cutting teeth takes place to damage, can be through rotating the retaining member, make the retaining member break away from the inside of inserted block, at this moment, elastic component reconversion drives the fly leaf rebound, thereby promote certain height with the cutting teeth, then take off the cutting teeth, at this moment peg graft the recess with new cutting teeth in, make the bottom of limiting plate and the inside laminating of constant head tank, meanwhile, the contact takes place for the inserted block and fly leaf, and take place the extrusion with the elastic component, at this moment rethread retaining member fix the inserted block can, when the cutting teeth at the PDC drill bit takes place to damage, can conveniently change it, it can be more convenient to let the use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front view of a PDC drill bit and a drilling device according to an embodiment of the present invention;

fig. 2 is a schematic view of a sectional exploded structure of a main view portion of a PDC drill bit according to an embodiment of the present invention;

fig. 3 is a schematic sectional view of a PDC drill bit and a drilling device according to an embodiment of the present invention;

fig. 4 is a schematic top view of the PDC drill bit and the drilling device according to the embodiment of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 2 according to the present invention;

fig. 6 is an enlarged view of the point B in fig. 3 according to the present invention.

In the figure: 100-a drill seat; 110-a first connection block; 120-a fixture block; 121-a limiting block; 122-a first threaded hole; 200-a connecting seat; 210-a second connection block; 220-card slot; 221-a limiting groove; 230-fixed column; 240-a fixture; 300-a cutting portion; 310-a cutting seat; 311-chip grooves; 320-grooves; 321-a first positioning block; 322-positioning grooves; 330-an elastic member; 340-a movable plate; 341-a second locating block; 350-cutting teeth; 351-a limiting plate; 352-an insert block; 353-a second threaded hole; 360-a locking member; 400-drilling equipment.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-6, the present invention provides a technical solution: the PDC drill bit and drilling device comprises a drill seat 100, a connecting seat 200 and a cutting part 300.

The connection socket 200 is fixed at one end of the drill holder 100 for fixedly connecting with the drill holder 100, and the cutting part 300 is fixed at the other end of the drill holder 100 for performing a cutting operation.

Referring to fig. 1 and 2, the drill seat 100 includes a first connecting block 110 and a clamping block 120, the clamping block 120 is fixed at the bottom of the first connecting block 110, limiting blocks 121 are fixed at two sides of the clamping block 120, and the limiting blocks 121 are symmetrically arranged; a clamping groove 220 matched with the clamping block 120 is formed in the second connecting block 210, and limiting grooves 221 matched with the limiting blocks 121 are symmetrically formed in two sides of the clamping groove 220; a fixing member 240 penetrates through the surface of the second connecting block 210, wherein the fixing member 240 is a bolt, and the end of the fixing member 240 extends into the clamping groove 220; the surface of the fixture block 120 is provided with a first threaded hole 122 matched with the fixing member 240; through the setting of draw-in groove 220, can make things convenient for fixture block 120 to carry out the joint, through the setting of stopper 121 and spacing groove 221, can conveniently fix a position fixture block 120, make things convenient for in the first screw hole 122 of the inside of mounting 240 spiro union fixed to fixture block 120, conveniently fix the inside to second connecting block 210 with fixture block 120.

Referring to fig. 1 to 3, the connecting base 200 includes a second connecting block 210 and a fixing post 230, the latch 120 is fixed inside the second connecting block 210, and the fixing post 230 is fixed at the bottom of the second connecting block 210.

Referring to fig. 2 to 6, the cutting part 300 includes a cutting seat 310, an elastic member 330, a movable plate 340, cutting teeth 350 and a locking member 360, the cutting seat 310 is fixed at an end of the first connecting block 110, a groove 320 is formed in the cutting seat 310, the movable plate 340 is slidably connected in the groove 320, one end of the elastic member 330 is fixed at a bottom of the movable plate 340, the other end of the elastic member 330 is fixed at a bottom of the groove 320, a limiting plate 351 is fixed at a bottom of the cutting teeth 350, an insertion block 352 is fixed at a bottom of the limiting plate 351, the insertion block 352 is inserted in the groove 320, the locking member 360 penetrates through the groove 320, the locking member 360 is screwed through the insertion block 352, and an end of the locking member 360 is screwed to an inner surface of the groove 320, so that the insertion block 352 can.

The surface of the cutting seat 310 is provided with a chip discharge groove 311, the chip discharge groove 311 is positioned between the cutting teeth 350, and the chip discharge groove 311 is arranged to conveniently discharge waste chips; a first positioning block 321 is fixed at the bottom of the groove 320, a second positioning block 341 matched with the first positioning block 321 is fixed at the bottom of the movable plate 340, two ends of the elastic element 330 are sleeved and fixed between the first positioning block 321 and the second positioning block 341, the elastic element 330 is a spring, and the first positioning block 321 and the second positioning block 341 are arranged to conveniently limit the elastic element 330, so that the elastic element 330 is fixed more stably; the upper end of the groove 320 is provided with a positioning groove 322 matched with the limiting plate 351, and the positioning groove 322 is arranged, so that the limiting plate 351 can be conveniently positioned, and the cutting teeth 350 can be conveniently positioned and installed; insert block 352's inside offer with 360 assorted second screw holes 353 of retaining member, the setting of second screw hole 353 can make things convenient for 360 spiro couplings of retaining member to in the second screw hole 353, fix insert block 352 to fix cutting teeth 350, retaining member 360 here is the screw thread post, and the tip of screw thread post has seted up positive hexagonal slot, and such setting can conveniently insert hexagonal slot through the hexagonal spanner in, conveniently drive retaining member 360 and rotate.

Referring to fig. 1, another embodiment of the present invention provides a drilling apparatus, including the drill bit and a drilling device 400, where the drilling device 400 is a drilling machine, and the fixing column 230 is configured to be fixedly connected to an output end of the drilling device 400.

Specifically, the working principle of the PDC drill bit and the drilling device is as follows: cutting teeth 350 can be damaged in long-time use, can pass through at this moment to rotate retaining member 360, make retaining member 360 break away from the inside of inserted block 352, elastic component 330 reconversion drives fly leaf 340 rebound at this moment, thereby promote certain height with cutting teeth 350, then take off cutting teeth 350, at this moment peg graft in recess 320 with new cutting teeth 350, make the bottom of limiting plate 351 and the inside laminating of constant head tank 322, meanwhile, inserted block 352 takes place the contact with fly leaf 340, and take place the extrusion with elastic component 330, at this moment again with retaining member 360 spiro union in the inside second screw hole 353 of inserted block 352, thereby fix cutting teeth 350, when the cutting teeth at the PDC drill bit takes place the damage like this, can conveniently change it, it can be more convenient to let the use.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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

PDC bit, characterized by comprising

The drill seat (100) comprises a first connecting block (110) and a fixture block (120), and the sent fixture block (120) is fixed at the bottom of the first connecting block (110);

the connecting base (200), the connecting base (200) includes a second connecting block (210) and a fixing column (230), the clamping block (120) is fixed inside the second connecting block (210), and the fixing column (230) is fixed at the bottom of the second connecting block (210);

a cutting part (300), the cutting part (300) comprising a cutting seat (310), an elastic member (330), a movable plate (340), cutting teeth (350) and a locking member (360), the cutting seat (310) is fixed at the end part of the first connecting block (110), a groove (320) is formed in the cutting seat (310), a movable plate (340) is connected inside the groove (320) in a sliding manner, one end of the elastic piece (330) is fixed at the bottom of the movable plate (340), the other end of the elastic piece (330) is fixed at the bottom of the groove (320), a limiting plate (351) is fixed at the bottom of the cutting tooth (350), an insert block (352) is fixed at the bottom of the limiting plate (351), the inserting block (352) is inserted into the groove (320), the locking piece (360) penetrates through the groove (320), and the locking piece (360) penetrates through the inserting block (352) in a threaded mode.
2. The PDC bit of claim 1, wherein the fixture block (120) is fixed with a stopper (121) at both sides, and the stopper (121) is symmetrically arranged.
3. The PDC drill bit of claim 2, wherein the second connecting block (210) is internally provided with a clamping groove (220) matched with the clamping block (120), and limiting grooves (221) matched with the limiting blocks (121) are symmetrically formed in two sides of the clamping groove (220).
4. The PDC bit of claim 1, wherein a fixing member (240) penetrates through a surface of the second connecting block (210), and an end of the fixing member (240) extends to an inside of the slot (220).
5. The PDC bit of claim 4, wherein the fixture block (120) has a surface defining a first threaded hole (122) that mates with the fixture (240).
6. The PDC bit of claim 1, wherein the surface of the cutting block (310) defines flutes (311), the flutes (311) being located between cutting teeth (350).
7. The PDC drill bit according to claim 1, wherein a first positioning block (321) is fixed at the bottom of the groove (320), a second positioning block (341) matched with the first positioning block (321) is fixed at the bottom of the movable plate (340), and two ends of the elastic element (330) are sleeved and fixed between the first positioning block (321) and the second positioning block (341).
8. The PDC bit of claim 1, wherein the upper end of the groove (320) defines a locating slot (322) that mates with the limiting plate (351).
9. The PDC bit of claim 1 wherein the insert (352) defines a second threaded bore (353) therein that mates with the retaining member (360).
10. A drilling apparatus, comprising

The PDC bit of any one of claims 1-9; and a drilling apparatus (400), the drilling apparatus (400) being a drilling rig, the fixed column (230) being configured to be fixedly connected with an output of the drilling apparatus (400).