CN215057154U

CN215057154U - Drill bit and drilling machine

Info

Publication number: CN215057154U
Application number: CN202120939817.0U
Authority: CN
Inventors: 钱阳; 于卓伟; 马宁; 周鹏
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-07
Anticipated expiration: 2031-04-30

Abstract

The utility model relates to an engineering machine tool technical field, concretely relates to drill bit and rig. The drill bit includes: insulating seat, a plurality of high electrodes and a plurality of low electrode, a plurality of high electrode intervals set up on the insulating seat, are equipped with the liquid passage that supplies liquid to pass through on the insulating seat, set up a low electrode between two adjacent high electrodes, and the outside of a plurality of high electrodes and the outside of a plurality of low electrodes enclose into the rectangle. The utility model discloses a when the rock stratum is bored to the drill bit, let in liquid in the liquid passage on the insulator seat, make liquid be full of the clearance department between high electrode and the low electrode, apply high voltage and low-voltage respectively on high electrode and low electrode, form plasma channel under the effect of voltage, be accompanied by high temperature high pressure when plasma channel forms, under the effect of high temperature, pressure in the plasma channel sharply risees, make plasma channel inflation and puncture the rock, make rock on every side broken, it is effectual to break rock, high construction efficiency, construction cost is reduced.

Description

Drill bit and drilling machine

Technical Field

The utility model relates to an engineering machine tool technical field, concretely relates to drill bit and rig.

Background

In the pile foundation construction, equipment such as rotary drilling rigs and double-wheel slot milling machines are adopted in square pile foundation construction of underground continuous walls, square piles and the like, rock is drilled through drilling tools, milling wheels and the like, the rock breaking effect is poor, the efficiency is low, and the construction cost is high.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a drill bit and rig to drill through drilling tool, cutterhead etc. and cause the problem that broken rock effect is not good, efficiency is lower, construction cost is higher to the rock among the solution prior art.

In order to achieve the above object, the present invention provides a drill bit, including: insulating seat, a plurality of high electrodes and a plurality of low electrode, a plurality of high electrode intervals set up on the insulating seat, are equipped with the liquid passage that supplies liquid to pass through on the insulating seat, set up a low electrode between two adjacent high electrodes, and the outside of a plurality of high electrodes and the outside of a plurality of low electrodes enclose into the rectangle.

Optionally, the rectangle is a square.

Optionally, the drill bit still includes the first connection seat that detachably set up on insulating seat, and a plurality of high electrodes are fixed on first connection seat, and first connection seat is the rectangle.

Optionally, the drill further comprises a second connecting seat detachably arranged on the insulating seat, the plurality of low electrodes are fixed on the second connecting seat, and the second connecting seat is rectangular.

Optionally, the insulator base is rectangular.

Optionally, the drill bit further comprises a center high electrode arranged on the insulating base, the plurality of high electrodes and the plurality of low electrodes are arranged around the center high electrode, the center high electrode is provided with a center jet hole and a side jet hole, liquid passes through the center high electrode, the center jet hole penetrates through the upper surface and the lower surface of the center high electrode and is communicated with the liquid channel, and the side jet hole is arranged on the side face of the center high electrode and is communicated with the center jet hole.

Optionally, the central high electrode is in a frustum shape with a large top and a small bottom, and the edge of the central high electrode is in an arc shape.

Optionally, the central jet hole is in a frustum shape with a large top and a small bottom.

Optionally, the side-jet aperture is provided with one and is polygonal or circular.

The utility model also provides a drilling machine, include: the drill bit is described above.

The utility model discloses technical scheme has following advantage: when the drill bit drills a rock stratum, liquid is introduced into the liquid channel on the insulating base, so that the liquid is filled in a gap between the high electrode and the low electrode, high voltage and low voltage are applied to the high electrode and the low electrode respectively, the plasma channel is formed under the action of the voltage, the plasma channel is formed while high temperature and high pressure are generated, the pressure in the plasma channel is increased sharply under the action of high temperature, the plasma channel expands and breaks down rocks, the surrounding rocks are broken, the rock breaking effect is good, the construction efficiency is high, and the construction cost is reduced. The outer sides of the high electrodes and the outer sides of the low electrodes form a rectangle, and the rectangular pile foundation can be constructed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic perspective view of a drill bit provided by the present invention;

FIG. 2 shows a schematic front view of the drill bit of FIG. 1;

FIG. 3 shows a schematic side view of the drill bit of FIG. 1;

FIG. 4 shows a perspective view of the high electrode, the central high electrode and the first adapter of the drill bit of FIG. 1;

FIG. 5 shows a schematic top view of the high electrode, central high electrode and first docking station of FIG. 4;

FIG. 6 is a schematic side view of the high electrode, central high electrode and first connecting mount of FIG. 4;

FIG. 7 shows a schematic bottom view of the high electrode, the central high electrode and the first docking station of FIG. 4;

FIG. 8 shows a perspective view of the lower electrode and the second connecting seat of the drill bit of FIG. 1;

FIG. 9 illustrates a top view of the lower electrode and the second connecting socket of FIG. 8;

fig. 10 shows a side view of the lower electrode and the second connecting socket of fig. 8.

Description of reference numerals:

10. an insulating base; 20. a high electrode; 30. a lower electrode; 40. a first connecting seat; 50. a second connecting seat; 60. a center tall electrode; 61. a central jet hole; 62. a side-emitting orifice.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, the drill of the present embodiment includes: the liquid-cooled electrode comprises an insulating seat 10, a plurality of high electrodes 20 and a plurality of low electrodes 30, wherein the high electrodes 20 are arranged on the insulating seat 10 at intervals, a liquid channel for liquid to pass through is arranged on the insulating seat 10, one low electrode 30 is arranged between two adjacent high electrodes 20, and the outer sides of the high electrodes 20 and the outer sides of the low electrodes 30 are enclosed into a rectangle. The high electrode 20 means that a voltage higher than that of the low electrode 30 is applied thereto.

By using the drill bit of the embodiment, when the drill bit drills a rock stratum, liquid is introduced into the liquid channel on the insulating base 10, so that the liquid is filled in the gap between the high electrode 20 and the low electrode 30, high voltage and low voltage are respectively applied to the high electrode 20 and the low electrode 30, a plasma channel is formed under the action of the voltage, the plasma channel is formed along with high temperature and high pressure, the pressure in the plasma channel is sharply increased under the action of high temperature, the plasma channel expands and breaks down rocks, the surrounding rocks are broken, the rock breaking effect is good, the construction efficiency is high, and the construction cost is reduced. The outer sides of the plurality of high electrodes 20 and the outer sides of the plurality of low electrodes 30 enclose a rectangle, and a rectangular pile foundation can be constructed.

In the embodiment, the rectangle is square, so that the construction of a square pile foundation can be realized.

In the present embodiment, as shown in fig. 4 to 7, the drill further includes a first connection seat 40 detachably disposed on the insulation seat 10, the plurality of high electrodes 20 are fixed on the first connection seat 40, and the first connection seat 40 has a square shape. When the high electrode 20 is maintained or replaced, only the first connecting seat 40 needs to be detached from the insulating seat 10, and then the high electrode 20 is maintained or replaced without detaching the insulating seat 10, so that the maintenance is convenient. The plurality of high electrodes 20 are connected to the first connecting socket 40 by welding or the like. Of course, the first connecting seat 40 may not be provided, and the plurality of high electrodes 20 may be detachably provided on the insulating seat 10.

In this embodiment, as shown in fig. 8 to 10, the drill further includes a second connecting seat 50 detachably disposed on the insulating seat 10, the plurality of lower electrodes 30 are fixed on the second connecting seat 50, and the second connecting seat 50 is square. When the low electrode 30 is maintained or replaced, the second connecting seat 50 is only required to be detached from the insulating seat 10, and then the low electrode 30 is maintained or replaced without detaching the insulating seat 10, so that the maintenance is convenient. The plurality of lower electrodes 30 are connected to the second connecting socket 50 by welding or the like. Of course, the second connection holder 50 may not be provided, and the plurality of lower electrodes 30 may be detachably provided on the insulating holder 10.

Preferably, the first and

second connection seats

40 and 50 are respectively connected to the insulating seat 10 by bolts. Specifically, through holes for bolts to pass through are respectively arranged on the first connecting seat 40 and the second connecting seat 50, and the bolts pass through the through holes to be in threaded connection with threaded holes on the insulating seat 10.

In the present embodiment, as shown in fig. 1 to 7, the insulating base 10 has a square shape, so as to be conveniently matched with the insulating base 10. The insulating holder 10 includes an upper block and a lower block disposed on a lower surface of the upper block, the lower block having a size smaller than that of the upper block, the first connecting holder 40 fixed on the lower block, and the second connecting holder 50 fixed on a lower surface of the upper block. Wherein, "up" and "down" refer to "up" and "down" of the drill bit when in use. Of course, the insulating base 10 may have a circular shape, and the like, without being limited thereto.

In the present embodiment, the drill further includes a central high electrode 60 disposed on the insulating base 10, the plurality of high electrodes 20 and the plurality of low electrodes 30 are disposed around the central high electrode 60, the central high electrode 60 has a central jet hole 61 for passing liquid and a side jet hole 62, the central jet hole 61 penetrates through the upper and lower surfaces of the central high electrode 60 and communicates with the liquid channel, and the side jet hole 62 is disposed on the side surface of the central high electrode 60 and communicates with the central jet hole 61. The high voltage is applied to the central high electrode 60, a plasma channel is formed under the action of the voltage, the plasma channel is formed and simultaneously accompanied by high temperature and high pressure, and under the action of the high temperature, the pressure in the plasma channel is increased sharply, so that the plasma channel expands and breaks down surrounding rocks, and the surrounding rocks are broken. The arrangement of the high electrode 20 can form a ring rock crushing effect, and the arrangement of the central high electrode 60 can also realize the rock crushing effect at the central position, so that the rock crushing effect is further improved.

In this embodiment, the central high electrode 60 is in a shape of a truncated pyramid with a large top and a small bottom, the edge of the central high electrode 60 is in an arc shape, and the central high electrode 60 forms a funnel-shaped structure, so that the liquid can be conveniently sprayed. Preferably, the central jet hole 61 is in a frustum shape with a large top and a small bottom, so that the spraying effect is further improved. Of course, the center-height electrode 60 may have a truncated cone shape with a large top and a small bottom.

In the present embodiment, the side-emitting holes 62 are one and have a triangular shape. Of course, the side-emitting aperture may be trapezoidal, circular, or the like.

The working principle of the drill bit is explained as follows:

applying high voltage to the high electrode 20 and the central high electrode 60, applying low voltage to the low electrode 30, when the rising edge of the voltage is less than 100ns, forming a plasma channel in the rock, wherein the plasma channel is formed and accompanied with high temperature and high pressure, under the action of high temperature, the pressure in the plasma channel is rapidly increased, so that the plasma channel is expanded and cracks the rock, and the liquid is insulating liquid; when the rising edge of the voltage is more than or equal to 100ns, the liquid is ionized to form a plasma channel, the plasma channel is formed and simultaneously accompanied by high temperature and high pressure, the pressure in the plasma channel is rapidly increased under the action of the high temperature, so that the plasma channel is expanded to form shock waves, the shock waves are penetrated through rocks, and at the moment, the liquid is electrolyte.

Alternatively, the rectangle may be a rectangle, and the first connecting socket 40, the second connecting socket 50 and the insulating socket 10 are all rectangular.

The utility model also provides a drilling machine, include: the drill bit is described above. And a plasma channel is formed through high-voltage electric arc to carry out diversified pile foundation construction, so that the construction efficiency of the cast-in-situ bored pile is improved.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. through high electrode and low electrode cross arrangement, realize multiple square pile foundation construction such as underground continuous wall, square pile, compare traditional equipment construction pile foundations such as rig, double round slot milling machine soon, the drilling efficiency obviously improves, and the efficiency of construction improves, and construction cost descends, and simple structure, and manufacturing cost and maintenance cost are low.

2. The high electrode, the central high electrode and the low electrode are reasonably arranged, the discharge part is fully covered, and the crushing efficiency is high.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A drill bit, comprising: insulating seat (10), a plurality of high electrode (20) and a plurality of low electrode (30), it is a plurality of high electrode (20) interval sets up on insulating seat (10), be equipped with the liquid channel that supplies liquid to pass through on insulating seat (10), adjacent two set up one between high electrode (20) low electrode (30), it is a plurality of the outside of high electrode (20) and a plurality of the outside of low electrode (30) encloses into the rectangle.

2. The bit according to claim 1, wherein the rectangle is a square.

3. The drill according to claim 1, characterized in that it further comprises a first connecting seat (40) removably arranged on said insulating seat (10), a plurality of said high electrodes (20) being fixed on said first connecting seat (40), said first connecting seat (40) being rectangular.

4. The drill according to claim 1, further comprising a second connecting seat (50) detachably provided on the insulating seat (10), a plurality of the lower electrodes (30) being fixed on the second connecting seat (50), the second connecting seat (50) having a rectangular shape.

5. Drill bit according to claim 1, characterized in that the insulating seat (10) is rectangular.

6. The drill bit according to claim 1, further comprising a central high electrode (60) disposed on the insulating base (10), wherein a plurality of the high electrodes (20) and a plurality of the low electrodes (30) are disposed around the central high electrode (60), wherein the central high electrode (60) has a central jet hole (61) through which the liquid passes and a side jet hole (62), wherein the central jet hole (61) penetrates upper and lower surfaces of the central high electrode (60) and communicates with the liquid passage, and wherein the side jet hole (62) is disposed on a side surface of the central high electrode (60) and communicates with the central jet hole (61).

7. The drill bit as claimed in claim 6, wherein the central high electrode (60) is in a truncated pyramid shape with a large top and a small bottom, and the edge of the central high electrode (60) is in an arc shape.

8. Drill bit according to claim 7, characterized in that the central jet hole (61) is frustum-shaped with a large top and a small bottom.

9. Drill bit according to claim 6, characterized in that the side jet hole (62) is provided with one and is polygonal or circular.

10. A drilling rig, comprising: the drill bit of any one of claims 1 to 9.