CN210343243U - Diamond thin-wall drill bit - Google Patents

Abstract

The utility model discloses a diamond thin-wall drill bit, which comprises a drill bit, the top fixedly connected with butt rod of drill bit, butt sleeve has been cup jointed on the butt rod, the round cavity has been seted up in the butt rod, the piston has all been cup jointed to the both sides of round cavity inner chamber, and the equal fixedly connected with kelly in one side that two pistons carried on the back mutually, the other end of kelly runs through butt rod and pegs graft in the card hole of seting up on butt sleeve inner wall, slide bar connection is passed through to the both sides of round cavity inner wall, the round hole that the slide bar alternated to set up on the piston, the round slot of all seting up all around of round hole inner wall, the muffjoint has the sliding ball in the round slot, the sliding ball exposes on the outside overlap joint of round slot is on the surface of. The utility model discloses an in at first insert the butt joint pole in the butt joint cover, under extrusion spring and return spring's effect, can make the piston promote two sets of kellies and peg graft respectively in the stuck hole of seting up in butt joint cover inner wall both sides, at this moment, can install the drill bit on the butt joint cover fast.

Description

Diamond thin-wall drill bit

Technical Field

The utility model relates to a drill bit technical field specifically is a diamond thin wall drill bit.

Background

When the diamond bit drills in soft, medium and hard strata, the diamond bit has the advantages of high speed, more footage, long service life, stable work, less underground accidents, good well body quality and the like. The diamond bit not only has long service life, but also can be recycled, the diamond bit repaired in factory is used as well as the diamond bit delivered from factory, and the drilling cost can be greatly saved.

When the existing diamond thin-wall drill bit is used, the diamond thin-wall drill bit is generally installed on a driving mechanism through a clamping piece, although the diamond thin-wall drill bit can be stably installed, the installation process is complicated, and the diamond thin-wall drill bit is inconvenient to disassemble.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a diamond thin-wall drill bit, the inconvenient problem of current diamond thin-wall drill bit dismouting has been solved to the not enough of prior art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a diamond thin-wall drill bit comprises a drill bit, wherein a butt rod is fixedly connected to the top of the drill bit, a butt sleeve is sleeved on the butt rod, a round cavity is formed in the butt rod, pistons are sleeved on two sides of the inner cavity of the round cavity, clamping rods are fixedly connected to one sides, opposite to each other, of the two pistons, the other end of each clamping rod penetrates through the butt rod and is inserted into clamping holes formed in the inner wall of the butt sleeve, two sides of the inner wall of the round cavity are connected through sliding rods, the sliding rods are inserted into round holes formed in the pistons, round grooves are formed in the peripheries of the inner walls of the round holes, sliding balls are sleeved in the round grooves, the surfaces, exposed outside the round grooves, of the sliding balls are lapped on the surfaces of the sliding rods, extrusion springs are sleeved on the sliding rods and located between the two pistons, two ends of the extrusion springs are fixedly connected with one sides, opposite to the two pistons, respectively, and an installation, the bottom swing joint on piston surface has the swash plate, and the bottom of two swash plates is articulated, one side fixedly connected with slide rail of installation intracavity wall, sliding connection has the slider in the slide rail, the bottom swing joint of telescopic link and slide rail inner wall is passed through to the bottom of slider, return spring has been cup jointed on the telescopic link, return spring's both ends respectively with the bottom of slide rail inner wall and the bottom fixed connection of slider, and the articulated department interlude of two swash plates has the poker rod, the one end of poker rod and the positive fixed connection of slider, the other end of poker rod runs through the groove of stirring of seting up on the butt-joint lever and extends to its outside.

Preferably, the top of the butt joint rod is fixedly connected with an insertion rod, and the insertion rod is inserted into a jack formed in the top of the inner wall of the butt joint sleeve.

Preferably, the diameter of the clamping rod is nine tenths of the diameter of the clamping hole.

Preferably, the number of the clamping rods is four, and the four clamping rods are arranged on one side of the two pistons, which is opposite to the other side, by taking two clamping rods as a group.

Preferably, the number of the sliding balls is twenty-four, and the twenty-four sliding balls are arranged in the two round holes in a twelve-group manner.

Preferably, the surface of the docking rod overlaps the inner wall of the docking sleeve.

(III) advantageous effects

The utility model provides a diamond thin-wall drill bit. The method has the following beneficial effects:

(1) firstly, the butt joint rod is inserted into the butt joint sleeve, then the poking rod is loosened, under the action of resilience forces of the extrusion spring and the return spring, the piston can push the two groups of clamping rods to be respectively inserted into the clamping holes formed in the two sides of the inner wall of the butt joint sleeve, and at the moment, the drill bit can be rapidly installed on the butt joint sleeve.

(2) After the drill bit is disassembled as required, the poking rod is pulled down, the sliding block can drive the two pistons to move relatively through the inclined plate, at the moment, the clamping rod can be separated from the clamping hole, then the drill bit is pulled, the butt joint rod and the butt joint sleeve can be separated, and therefore the drill bit can be disassembled by the puppet.

Drawings

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

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure B of FIG. 1 according to the present invention;

fig. 4 is a front view of the structure of the present invention;

fig. 5 is an enlarged view of the structure at C in fig. 4 according to the present invention.

In the figure: the drilling tool comprises a drill bit 1, a butt joint rod 2, a butt joint sleeve 3, a round cavity 4, a piston 5, a clamping rod 6, a clamping hole 7, a sliding rod 8, a round hole 9, a round groove 10, a sliding ball 11, an extrusion spring 12, an installation cavity 13, an inclined plate 14, a sliding rail 15, a sliding block 16, a telescopic rod 17, a return spring 18, a poking rod 19, a poking groove 20, an inserted rod 21 and an insertion hole 22.

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.

As shown in fig. 1-5, the utility model provides a technical solution: a diamond thin-wall drill bit comprises a drill bit 1, wherein the top of the drill bit 1 is fixedly connected with a butt rod 2, a butt sleeve 3 is sleeved on the butt rod 2, the surface of the butt rod 2 is lapped on the inner wall of the butt sleeve 3, the top of the butt rod 2 is fixedly connected with an insertion rod 21, the insertion rod 21 is inserted into a jack 22 formed in the top of the inner wall of the butt sleeve 3, after the insertion rod 21 is inserted into the jack 22, the stability between the butt rod 2 and the butt sleeve 3 can be further improved, a round cavity 4 is formed in the butt rod 2, pistons 5 are sleeved on two sides of the inner cavity of the round cavity 4, clamping rods 6 are fixedly connected on one sides of the two pistons 5 opposite to each other, the other ends of the clamping rods 6 penetrate through the butt rod 2 and are inserted into clamping holes 7 formed in the inner wall of the butt sleeve 3, the diameter of the clamping rods 6 is nine tenths of the diameter of the clamping holes 7, the number of the clamping rods 6 is four, and the four clamping rods 6 are arranged on one side of, the four clamping rods 6 can increase the stability between the butt joint rod 2 and the butt joint sleeve 3, the proportion between the clamping rods 6 and the clamping holes 7 can enable the clamping rods 6 to be smoothly inserted into the clamping holes 7, two sides of the inner wall of the circular cavity 4 are connected through the sliding rods 8, the sliding rods 8 are inserted into the circular holes 9 formed in the piston 5, circular grooves 10 are formed in the peripheries of the inner walls of the circular holes 9, sliding balls 11 are sleeved in the circular grooves 10, the surfaces, exposed outside the circular grooves 10, of the sliding balls 11 are lapped on the surfaces of the sliding rods 8, the number of the sliding balls 11 is twenty-four, the twenty-four sliding balls 11 are arranged in the two circular holes 9 respectively in a group, an extrusion spring 12 is sleeved on the sliding rod 8 and positioned between the two pistons 5, two ends of the extrusion spring 12 are fixedly connected with one side, opposite to the two pistons 5 respectively, when the piston 5 slides on the sliding rod 8, the surfaces of the sliding balls 11 can rub, and at the moment, the friction force between the pistons 5, thereby facilitating the piston 5 to push the clamping rod 6 to smoothly pass in and out of the clamping hole 7, the bottom of the inner wall of the circular cavity 4 is provided with a mounting cavity 13, the bottom of the surface of the piston 5 is movably connected with an inclined plate 14, the bottom ends of the two inclined plates 14 are hinged, one side of the inner wall of the mounting cavity 13 is fixedly connected with a slide rail 15, the slide rail 15 is slidably connected with a slide block 16, the bottom of the slide block 16 is movably connected with the bottom of the inner wall of the slide rail 15 through a telescopic rod 17, the telescopic rod 17 is sleeved with a return spring 18, two ends of the return spring 18 are respectively fixedly connected with the bottom of the inner wall of the slide rail 15 and the bottom of the slide block 16, a poking rod 19 is inserted at the hinged part of the two inclined plates 14, one end of the poking rod 19 is fixedly connected with the front surface of the slide block 16, the other end of the poking, under the effect of extrusion spring 12 and the resilience force of return spring 18, can make piston 5 promote two sets of kelly 6 and peg graft respectively in the card hole 7 of seting up in the 3 inner walls both sides of butt joint cover, at this moment, can install drill bit 1 on butt joint cover 3 fast, after needs are dismantled drill bit 1, lower pulling poker rod 19, slider 16 can drive two piston 5 relative movement through swash plate 14, at this moment, can make kelly 6 break away from card hole 7, then stimulate drill bit 1, can make butt joint lever 2 and butt joint cover 3 separation, thereby can the idol dismantle drill bit 1.

The working principle is as follows: when the drill bit 1 is installed, firstly, the poking rod 19 is pulled downwards, the sliding block 16 can slide downwards in the sliding rail 15, the telescopic rod 17 and the return spring 18 sleeved on the telescopic rod are compressed, at the moment, the inclined plate 14 can drive the two pistons 5 to move relatively on the sliding rod 8 inserted in the circular cavity 4 and retract into the circular cavity 4, then the butt joint rod 2 is inserted in the butt joint sleeve 3, then the poking rod 19 is loosened, the pistons 5 can push the clamping rod 6 to extend into the circular cavity 4 under the action of the resilience force of the extrusion spring 12 and the return spring 18, at the moment, the clamping rod 6 can be gradually inserted into the clamping hole 7, and when the drill bit 1 needs to be detached, the operation is opposite to the operation.

Claims (6)

1. A diamond thin wall drill bit, comprising a drill bit (1), characterized in that: the drill bit is characterized in that a butt joint rod (2) is fixedly connected to the top of the drill bit (1), a butt joint sleeve (3) is sleeved on the butt joint rod (2), a round cavity (4) is formed in the butt joint rod (2), pistons (5) are sleeved on two sides of an inner cavity of the round cavity (4), clamping rods (6) are fixedly connected to one sides of the two pistons (5) which are opposite to each other, the other ends of the clamping rods (6) penetrate through the butt joint rod (2) and are inserted into clamping holes (7) formed in the inner wall of the butt joint sleeve (3), two sides of the inner wall of the round cavity (4) are connected through sliding rods (8), the sliding rods (8) penetrate through round holes (9) formed in the pistons (5), round grooves (10) are formed in the peripheries of the inner wall of the round holes (9), sliding beads (11) are sleeved in the round grooves (10), the surfaces, exposed outside the round grooves (10), of the sliding beads (11) are lapped on the surfaces of the sliding rods, the improved piston pump is characterized in that an extrusion spring (12) is sleeved on the sliding rod (8) and positioned between the two pistons (5), two ends of the extrusion spring (12) are fixedly connected with one side of the two pistons (5) opposite to each other respectively, a mounting cavity (13) is formed in the bottom of the inner wall of the circular cavity (4), an inclined plate (14) is movably connected to the bottom of the surface of each piston (5), the bottom ends of the two inclined plates (14) are hinged to each other, a sliding rail (15) is fixedly connected to one side of the inner wall of the mounting cavity (13), a sliding block (16) is slidably connected to the sliding rail (15) in the sliding rail (15), the bottom of the sliding block (16) is movably connected to the bottom of the inner wall of the sliding rail (15) through a telescopic rod (17), a return spring (18) is sleeved on the telescopic rod (17), and two ends of the return spring, and a poking rod (19) is inserted at the hinged position of the two inclined plates (14), one end of the poking rod (19) is fixedly connected with the front surface of the sliding block (16), and the other end of the poking rod (19) penetrates through a poking groove (20) formed in the butt joint rod (2) and extends to the outside of the butt joint rod.

2. A diamond thin wall drill bit according to claim 1, characterized in that: the top of the butt joint rod (2) is fixedly connected with an inserted rod (21), and the inserted rod (21) is inserted into a jack (22) formed in the top of the inner wall of the butt joint sleeve (3).

3. A diamond thin wall drill bit according to claim 1, characterized in that: the diameter of the clamping rod (6) is nine tenths of that of the clamping hole (7).

4. A diamond thin wall drill bit according to claim 1, characterized in that: the number of the clamping rods (6) is four, and the four clamping rods (6) are arranged on one side of the two pistons (5) in a group of two clamping rods respectively.

5. A diamond thin wall drill bit according to claim 1, characterized in that: the number of the sliding balls (11) is twenty-four, and twelve sliding balls (11) are respectively arranged in the two round holes (9) in a group.

6. A diamond thin wall drill bit according to claim 1, characterized in that: the surface of the butt joint rod (2) is lapped on the inner wall of the butt joint sleeve (3).

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