阅读说明：本技术 三翼内凹式pdc钻头 (Three-wing concave PDC drill bit ) 是由 杜中庆 张傲 杨硕 王建 刘体军 张松林 于 2020-06-20 设计创作，主要内容包括：本发明公开一种三翼内凹式PDC钻头,包括连接座、固定座、安装头和螺栓,所述连接座表面开设有凹槽,所述连接座两侧设置有固定座,其中,所述固定座内部设置有第一连接块,所述第一连接块一端固定连接有夹块,所述连接座顶部固定安装有安装头。该三翼内凹式PDC钻头,通过将滑块从滑槽开口端滑出,使滑块通过第二连接块将钻头座与连动座脱离连接,使钻头能够进行更换,以减少浪费,第一连接块与夹块连接处面积小于夹块面积,这样在使用时夹块的温度上升的会比连接座的温度上升的慢,从而在使用结束后可以通过夹块将连接座拿起,安装时令工具与凹槽进行连接,使工具能够有效的夹持在凹槽内部,从而使安装时工具不会在连接座表面打滑。(The invention discloses a three-wing concave PDC drill bit which comprises a connecting seat, fixing seats, an installing head and a bolt, wherein a groove is formed in the surface of the connecting seat, the fixing seats are arranged on two sides of the connecting seat, a first connecting block is arranged inside the fixing seats, a clamping block is fixedly connected to one end of the first connecting block, and the installing head is fixedly installed at the top of the connecting seat. This three-wing indent formula PDC drill bit, through with the slider from spout open end roll-off, make the slider break away from drill bit seat and interlock seat through the second connecting block and be connected, make the drill bit can change, in order to reduce extravagantly, first connecting block is less than the clamp splice area with clamp splice junction area, the temperature rise of clamp splice can be more slowly than the temperature rise of connecting seat when using like this, thereby can take up the connecting seat through the clamp splice after the use, make instrument and recess be connected during the installation, make instrument can effectual centre gripping inside the recess, thereby instrument can not skid on the connecting seat surface when making the installation.)

1. Three wing indent formula PDC drill bits, including connecting seat (1), fixing base (3), installation head (6) and bolt (13), its characterized in that: the surface of the connecting seat (1) is provided with a groove (2), both sides of the connecting seat (1) are provided with a fixed seat (3), wherein,

a first connecting block (4) is arranged in the fixed seat (3), one end of the first connecting block (4) is fixedly connected with a clamping block (5), an installing head (6) is fixedly installed at the top of the connecting seat (1), and a linkage seat (7) is fixedly installed on the surface of the installing head (6);

the improved drill bit is characterized in that a sliding groove (8) is formed in the linkage seat (7), a sliding block (9) is movably mounted in the sliding groove (8), a second connecting block (10) is fixedly connected to one side of the sliding block (9), a drill bit seat (11) is fixedly connected to one side of the second connecting block (10), a drill bit (12) is fixedly mounted at the top of the drill bit seat (11), and a bolt (13) is arranged on one side of the sliding block (9).

2. The three-wing, internally recessed PDC bit of claim 1, wherein: recess (2) are the quadrangle structure of caving in, and recess (2) open end and connecting seat (1) surface are located same horizontal position, and recess (2) and connecting seat (1) vertical center line are located same position to recess (2) vertical upper end and fixing base (3) bottom are located same horizontal position.

3. The three-wing, internally recessed PDC bit of claim 1, wherein: the fixing seats (3) are arranged in two numbers, the two fixing seats (3) are symmetrical with respect to a longitudinal center parting line of the connecting seat (1), the fixing seats (3) are internally provided with a mesopore structure, and each fixing seat (3) is internally provided with one clamping block (5).

4. The three-wing, internally recessed PDC bit of claim 1, wherein: first connecting block (4) are provided with two, and every first connecting block (4) one end is connected with clamp splice (5) one side is perpendicular, and the vertical maximum vertical length of clamp splice (5) and fixing base (3) open end inner wall size phase-match to clamp splice (5) one side is the arc structure of caving in.

5. The three-wing, internally recessed PDC bit of claim 1, wherein: one side of the linkage seat (7), which is far away from the mounting head (6), is provided with a hollowed-out threaded mounting hole, the longitudinal maximum vertical length of the threaded mounting hole of the linkage seat (7) is the same as the maximum vertical length of the sliding groove (8), the size of the threaded mounting hole of the linkage seat (7) is matched with that of the bolt (13), and a threaded connection structure is arranged between the linkage seat (7) and the bolt (13).

6. The three-wing, internally recessed PDC bit of claim 1, wherein: slider (9) one end and second connecting block (10) are connected perpendicularly, and slider (9) size and spout (8) size phase-match to slider (9) are the sliding connection structure through between spout (8) and interlock seat (7).

Technical Field

The invention relates to the technical field of drill bits, in particular to a three-wing concave PDC drill bit.

Background

The PDC drill bit is also called a polycrystalline diamond compact drill bit and is widely applied to the fields of rotary drilling and impact rotary drilling of drilling holes such as engineering construction, hydrology, coal field geological exploration, underground coal mine gas drainage, water injection, drainage and the like.

The PDC drill bit that uses at present all is structure as an organic whole, though can promote the PDC drill bit and make holistic function more excellent using like this, but prevent that the drill bit from having avoided can not taking place the damage in the use, can only scrap the PDC drill bit at this moment to the extravagant condition of messenger's PDC drill bit is very serious.

This three wing indent formula PDC drill bits of improved generation, damage the back when the drill bit and demolish the bolt earlier, then follow spout open end roll-off with the slider, make the slider break away from drill bit seat and interlock seat through the second connecting block and be connected, make the drill bit can change to it is extravagant to reduce.

Disclosure of Invention

The invention aims to provide a three-wing inwards concave PDC drill bit, which aims to solve the problems that the existing PDC drill bits proposed by the background technology are all of an integrated structure, so that the overall function of the PDC drill bit is more excellent when the PDC drill bit is used, but the drill bit is prevented from being damaged in the using process, and only the PDC drill bit can be scrapped, so that the waste condition of the PDC drill bit is very serious.

In order to achieve the purpose, the invention provides the following technical scheme: a three-wing concave PDC drill bit comprises a connecting seat, fixing seats, an installing head and a bolt, wherein a groove is formed in the surface of the connecting seat, the fixing seats are arranged on two sides of the connecting seat, wherein,

a first connecting block is arranged in the fixed seat, one end of the first connecting block is fixedly connected with a clamping block, an installing head is fixedly installed at the top of the connecting seat, and a linkage seat is fixedly installed on the surface of the installing head;

the linkage seat is internally provided with a sliding groove, a sliding block is movably arranged in the sliding groove, one side of the sliding block is fixedly connected with a second connecting block, one side of the second connecting block is fixedly connected with a drill bit seat, a drill bit is fixedly arranged at the top of the drill bit seat, and a bolt is arranged on one side of the sliding block.

Preferably, the groove is of an inwards-sunken quadrilateral structure, the opening end of the groove and the surface of the connecting seat are located at the same horizontal position, the groove and a longitudinal center line of the connecting seat are located at the same position, and the longitudinal upper end of the groove and the bottom end of the fixing seat are located at the same horizontal position.

Preferably, the fixing seats are provided with two fixing seats which are symmetrical with each other about a longitudinal center parting line of the connecting seat, a middle hole structure is arranged inside each fixing seat, and each fixing seat is internally provided with one clamping block.

Preferably, the number of the first connecting blocks is two, one end of each first connecting block is perpendicularly connected with one side of each clamping block, the longitudinal maximum perpendicular length of each clamping block is matched with the size of the inner wall of the opening end of the fixing seat, and one side of each clamping block is of an inwards-recessed arc-shaped structure.

Preferably, one side of the linkage seat, which is far away from the mounting head, is provided with a hollowed-out threaded mounting hole, the longitudinal maximum vertical length of the threaded mounting hole of the linkage seat is the same as the longitudinal maximum vertical length of the sliding groove, the size of the threaded mounting hole of the linkage seat is matched with the size of the bolt, and the linkage seat and the bolt are in a threaded connection structure.

Preferably, slider one end is connected with the second connecting block is perpendicular, and slider size and spout size phase-match to the slider passes through and is the sliding connection structure between spout and the interlock seat.

Compared with the prior art, the invention has the beneficial effects that:

1. this three-wing indent formula PDC drill bit's interlock seat is inside to be provided with the spout, and the drill bit seat is connected with the spout through second connecting block and slider to make and constitute sliding connection between drill bit seat and the interlock seat, demolish the bolt earlier after the drill bit damages, then follow spout open end roll-off with the slider, make the slider break away from drill bit seat and interlock seat through the second connecting block and be connected, make the drill bit change, in order to reduce extravagantly.

2. The both sides of this three-wing indent formula PDC drill bit are provided with the fixing base, the inside first link block that is provided with of fixing base, and first link block both ends are connected with clamp splice and connecting seat respectively, and first link block is less than the clamp splice area with clamp splice junction area, and the temperature rise of clamp splice can be more slowly than the temperature rise of connecting seat when using like this to can take up the connecting seat through the clamp splice after the use, with the reduction to personnel's unexpected injury.

3. The connecting seat surface of this three-wing indent formula PDC drill bit is provided with the recess that caves in, makes instrument and recess be connected when the installation like this, makes the instrument can effectual centre gripping inside the recess to instrument can not skid on the connecting seat surface when making the installation.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the connecting base of the present invention;

FIG. 3 is a schematic view of the internal structure of the fixing base of the present invention.

In the figure: 1. a connecting seat; 2. a groove; 3. a fixed seat; 4. a first connection block; 5. a clamping block; 6. a mounting head; 7. a linkage seat; 8. a chute; 9. a slider; 10. a second connecting block; 11. a bit seat; 12. a drill bit; 13. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a three-wing concave PDC drill bit comprises a connecting seat 1, a groove 2, a fixed seat 3, a first connecting block 4, a clamping block 5, an installing head 6, a linkage seat 7, a sliding chute 8, a sliding block 9, a second connecting block 10, a drill bit seat 11, a drill bit 12 and a bolt 13, wherein the surface of the connecting seat 1 is provided with the groove 2, the groove 2 is of a sunken quadrilateral structure, the opening end of the groove 2 and the surface of the connecting seat 1 are located at the same horizontal position, the longitudinal center line of the groove 2 and the longitudinal center line of the connecting seat 1 are located at the same horizontal position, the longitudinal upper end of the groove 2 and the bottom end of the fixed seat 3 are located at the same horizontal position, a tool is connected with the groove 2 during installation, the tool can be effectively clamped in the groove 2, so that the tool cannot slip on the surface of the connecting seat 1 during installation, the fixed seats 3 are arranged on two sides of the connecting seat, and the inside of the fixed seat 3 is of a mesoporous structure, the inside of each fixed seat 3 is provided with one clamping block 5, and as the area of the joint of the first connecting block 4 and the clamping block 5 is smaller than that of the clamping block 5, the temperature rise of the clamping block 5 is slower than that of the connecting seat 1 when in use, so that the connecting seat 1 can be taken up by the clamping block 5 after use is finished,

the interior of the fixed seat 3 is provided with two first connecting blocks 4, one end of each first connecting block 4 is vertically connected with one side of the clamping block 5, the maximum vertical length of the longitudinal direction of the clamping block 5 is matched with the size of the inner wall of the opening end of the fixed seat 3, one side of the clamping block 5 is of an inward-sunk arc structure, so that a clamped object can be connected with a sunken area of the clamping block 5 when the connecting seat is taken, the taking process is more stable, the connecting seat 1 is prevented from falling off in the taking process, one end of each first connecting block 4 is fixedly connected with the clamping block 5, the top of the connecting seat 1 is fixedly provided with the mounting head 6, the surface of the mounting head 6 is fixedly provided with the interlocking seat 7, one side of the interlocking seat 7, far away from the mounting head 6, is provided with a hollowed threaded mounting hole, and the maximum vertical length of the threaded mounting hole of the interlocking seat 7 is the same as, the size of the threaded mounting hole of the linkage seat 7 is matched with that of the bolt 13, a threaded connection structure is arranged between the linkage seat 7 and the bolt 13, the bolt 13 is removed, then the sliding block 9 slides out of the opening end of the sliding groove 8, the sliding block 9 enables the drill bit seat 11 to be separated from the linkage seat 7 through the second connecting block 10, and the drill bit 12 can be replaced, so that the drill bit seat 11 is connected with the sliding groove 8 through the second connecting block 10 and the sliding block 9, sliding connection is formed between the drill bit seat 11 and the linkage seat 7, and the drill bit seat 11 is separated from the sliding groove 8 through the second connecting block 10 and the sliding block 9;

the linkage seat 7 is internally provided with a sliding groove 8, the sliding groove 8 is internally and movably provided with a sliding block 9, one end of the sliding block 9 is vertically connected with a second connecting block 10, the size of the sliding block 9 is matched with the size of the sliding groove 8, the sliding block 9 is in a sliding connection structure with the linkage seat 7 through the sliding groove 8, when the drill bit seat 11 is moved, the drill bit seat 11 can drive the sliding block 9 to move through the second connecting block 10, so that the drill bit seat 11 can be detached, one side of the sliding block 9 is fixedly connected with the second connecting block 10, one side of the second connecting block 10 is fixedly connected with the drill bit seat 11, a drill bit 12 is fixedly arranged at the top of the drill bit seat 11, and one side.

The working principle is as follows: when the three-wing concave PDC drill bit is used, firstly, a sliding groove 8 is arranged in a linkage seat 7, a drill bit seat 11 is connected with the sliding groove 8 through a second connecting block 10 and a sliding block 9, so that sliding connection is formed between the drill bit seat 11 and the linkage seat 7, when a drill bit 12 is damaged, a bolt 13 is firstly removed, then the sliding block 9 slides out from the opening end of the sliding groove 8, so that the sliding block 9 separates the drill bit seat 11 from the linkage seat 7 through the second connecting block 10, the drill bit 12 can be replaced, so that waste is reduced, in addition, fixing seats 3 are arranged on two sides of a connecting seat 1, a first connecting block 4 is arranged in the fixing seat 3, two ends of the first connecting block 4 are respectively connected with a clamping block 5 and the connecting seat 1, the area of the joint of the first connecting block 4 and the clamping block 5 is smaller than the area of the clamping block 5, so that the temperature rise of the clamping block 5 is slower than that the temperature rise of the connecting seat 1 when, the three-wing concave PDC drill bit has the advantages that accidental injury to people is reduced, the concave groove 2 is formed in the surface of the connecting seat 1, so that a tool is connected with the concave groove 2 during installation, the tool can be effectively clamped inside the concave groove 2, the tool cannot slip on the surface of the connecting seat 1 during installation, the three-wing concave PDC drill bit is characterized by the three-wing concave PDC drill bit, and the content which is not described in detail in the description belongs to the prior art which is well known to a person skilled in the art.

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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.