Electric pulse drill bit
阅读说明:本技术 一种电脉冲钻头 (Electric pulse drill bit ) 是由 程永亮 廖金军 陈猛 李雅慧 易达云 张双全 徐震 祝爽 伍容 于 2019-09-30 设计创作,主要内容包括:本发明公开了一种电脉冲钻头,包括:分别用于与电脉冲发生器相连的高压电极和低压电极;用于设置高压电极的连接杆,高压电极通过电极接头与连接杆可拆卸连接,以便于更换不同的高压电极;用于设置低压电极的套筒,低压电极可拆卸的设于套筒上,以便于更换不同的低压电极;设于连接杆和套筒之间、用于使高压电极和低压电极绝缘的绝缘套管。该电脉冲钻头利用高压电极和低压电极脉冲放电产生的冲击波、射流或等离子体通道的力学效应使岩石产生破碎,无需钻头旋转,钻头不易磨损;采用脉冲放电的能量进行破岩,受岩石硬度等外在因素的影响较小,施工效率高。且可通过更换不同的高压电极和低压电极,使电脉冲钻头适应不同的凿岩及钻进需求。(The invention discloses an electric pulse drill bit, comprising: the high-voltage electrode and the low-voltage electrode are respectively used for being connected with the electric pulse generator; the connecting rod is used for arranging the high-voltage electrode, and the high-voltage electrode is detachably connected with the connecting rod through an electrode joint so as to be convenient for replacing different high-voltage electrodes; the sleeve is used for arranging the low-voltage electrode, and the low-voltage electrode is detachably arranged on the sleeve so as to be convenient for replacing different low-voltage electrodes; and the insulating sleeve is arranged between the connecting rod and the sleeve and is used for insulating the high-voltage electrode and the low-voltage electrode. The electric pulse drill bit utilizes the mechanical effect of shock waves, jet flows or plasma channels generated by pulse discharge of the high-voltage electrode and the low-voltage electrode to break rocks, the drill bit does not need to rotate, and the drill bit is not easy to wear; the energy of pulse discharge is adopted for breaking rocks, the influence of external factors such as rock hardness is small, and the construction efficiency is high. And the electric pulse drill bit can adapt to different rock drilling and drilling requirements by replacing different high-voltage electrodes and low-voltage electrodes.)
1. An electric pulse drill bit, comprising:
a high voltage electrode (1) and a low voltage electrode (2) which are respectively connected with the electric pulse generator;
the connecting rod (3) is used for arranging the high-voltage electrode (1), and the high-voltage electrode (1) is detachably connected with the connecting rod (3) through an electrode joint (11) so as to be convenient for replacing different high-voltage electrodes (1);
the sleeve (4) is used for arranging the low-voltage electrode (2), and the low-voltage electrode (2) is detachably arranged on the sleeve (4) so as to be convenient for replacing different low-voltage electrodes (2);
and the insulating sleeve (5) is arranged between the connecting rod (3) and the sleeve (4) and is used for insulating the high-voltage electrode (1) and the low-voltage electrode (2).
2. The electric pulse drill bit according to claim 1, characterized in that the high voltage electrode (1) comprises:
a center crushing and clamping joint (12) connected with the electrode joint (11);
and a plurality of high-voltage electrode tentacles (13) arranged on the periphery of the central crushing and clamping joint (12).
3. The electric pulse drill bit according to claim 2, characterized in that the electrode joint (11) comprises:
a first externally threaded stud (111) for threaded connection with the connecting rod (3);
and the connecting disc (112) is connected with the first externally threaded column (111) and is used for being connected with the high-voltage electrode (1).
4. An electric impulse drill bit as claimed in claim 3, characterized in, that said center breaking bit (12) comprises:
a second externally threaded post threadedly coupled to the coupling disc (112);
and the high-voltage electrode tentacle (13) is clamped in a gap between the clamping plate and the connecting disc (112).
5. An electric pulse drill according to claim 3, characterized in that a disc spring (14) is arranged between the connecting disc (112) and the connecting rod (3).
6. The electric pulse drill bit according to any one of claims 2 to 5, characterized in that the low voltage electrode (2) comprises a plurality of low voltage electrode tentacles (21), and the sleeve (4) is provided with a third threaded hole for screwing with the low voltage electrode tentacles (21).
7. The electric pulse drill bit according to claim 6, characterized in that the axes of all the high voltage electrode tentacles (13) are arranged in line with the axes of all the low voltage electrode tentacles (21), and all the high voltage electrode tentacles (13) and all the low voltage electrode tentacles (21) form an annular gap.
8. The electric pulse drill bit according to claim 6, characterized in that the sleeve (4) is electrically conductive, and that the end of the sleeve (4) remote from the low voltage electrode (2) is provided with a screw (41) for connection to a low voltage cable for connection to an electric pulse generator.
9. An electric pulse drill according to claim 8, characterized in that the connecting rod (3) is electrically conductive, and that the end of the connecting rod (3) remote from the high voltage electrode (1) is connected to a high voltage cable for connection to an electric pulse generator.
10. Electric pulse drill bit according to claim 6, characterized in that the insulating sleeve (5) comprises:
a first insulating sleeve (51) arranged between the connecting rod (3) and the sleeve (4), wherein a third external threaded column is arranged at one end, far away from the high-voltage electrode (1), of the first insulating sleeve (51);
the second insulating sleeve (52) is sleeved on the periphery of the first insulating sleeve (51), one end of the second insulating sleeve (52) is abutted to one end, far away from the low-voltage electrode (2), of the sleeve (4), the other end of the second insulating sleeve (52) is pressed on the end portion of the first insulating sleeve (51) through an insulating nut (53) in threaded connection with the third external threaded column, and an insulating flat gasket (54) is arranged between the insulating nut (53) and the second insulating sleeve (52).
Technical Field
The invention relates to the technical field of rock breaking and drilling devices, in particular to an electric pulse drill bit.
Background
Disclosure of Invention
In view of the above, an object of the present invention is to provide an electric pulse drill which is highly efficient and not easily damaged.
In order to achieve the above purpose, the invention provides the following technical scheme:
an electric pulse drill bit comprising:
the high-voltage electrode and the low-voltage electrode are respectively used for being connected with the electric pulse generator;
the connecting rod is used for arranging the high-voltage electrode, and the high-voltage electrode is detachably connected with the connecting rod through an electrode joint so as to be convenient for replacing different high-voltage electrodes;
the sleeve is used for arranging the low-voltage electrode, and the low-voltage electrode is detachably arranged on the sleeve so as to be convenient for replacing different low-voltage electrodes;
and the insulating sleeve is arranged between the connecting rod and the sleeve and is used for insulating the high-voltage electrode and the low-voltage electrode.
Preferably, the high voltage electrode includes:
the central crushing clamping joint is connected with the electrode joint;
and the high-voltage electrode tentacles are arranged at the peripheral part of the central crushing and clamping joint.
Preferably, the electrode tab includes:
a first externally threaded post for threaded connection with the connecting rod;
and the connecting disc is connected with the first external threaded column and is used for being connected with the high-voltage electrode.
Preferably, the center crushing chucking head includes:
the second external thread column is in threaded connection with the connecting disc;
and the high-voltage electrode tentacle is clamped in a gap between the clamping plate and the connecting disc.
Preferably, a disc spring is arranged between the connecting disc and the connecting rod.
Preferably, the low-voltage electrode comprises a plurality of low-voltage electrode tentacles, and the sleeve is provided with a third threaded hole for being in threaded connection with the low-voltage electrode tentacles.
Preferably, the axes of all the high-voltage electrode tentacles and the axes of all the low-voltage electrode tentacles are arranged in a collinear manner, and all the high-voltage electrode tentacles and all the low-voltage electrode tentacles form an annular gap.
Preferably, the sleeve is electrically conductive, and the end of the sleeve remote from the low voltage electrode is provided with a screw for connecting a low voltage cable for connection to an electrical pulse generator.
Preferably, the connecting rod is electrically conductive, and one end of the connecting rod, which is far away from the high-voltage electrode, is connected with a high-voltage cable, and the high-voltage cable is used for being connected with an electric pulse generator.
Preferably, the insulation sleeve includes:
the first insulating sleeve is arranged between the connecting rod and the sleeve, and a third external threaded column is arranged at one end, far away from the high-voltage electrode, of the first insulating sleeve;
the second insulating sleeve is sleeved on the peripheral part of the first insulating sleeve, one end of the second insulating sleeve is abutted to one end, away from the low-voltage electrode, of the sleeve, the other end of the second insulating sleeve is pressed on the end part of the first insulating sleeve through an insulating nut in threaded connection with the third external threaded column, and an insulating flat gasket is arranged between the insulating nut and the second insulating sleeve.
When the electric pulse drill bit provided by the invention is used, the rock is crushed by using the mechanical effect of the shock wave, jet flow or plasma channel generated by the pulse discharge of the high-voltage electrode and the low-voltage electrode, and compared with the drill bit adopting mechanical rotary rock crushing in the prior art, the electric pulse drill bit can realize rock crushing without rotating, and the drill bit is not easy to wear; compared with the method for breaking rock by cutting force generated by the rotation of the drill bit, the electric pulse drill bit is less influenced by external factors such as rock hardness and the like, and can ensure the construction efficiency when drilling unconventional wells such as deep wells or ultra-deep wells and breaking rock under extreme conditions are difficult.
Furthermore, because the high-voltage electrode passes through the electrode joint and can dismantle with the connecting rod and be connected, the low-voltage electrode can be dismantled with the sleeve and be connected, consequently, can guarantee the dismantlement of high-voltage electrode and low-voltage electrode and change to can make different high-voltage electrode and low-voltage electrode cooperation through changing different high-voltage electrode and low-voltage electrode, with through nimble adjustment high-voltage electrode and low-voltage electrode, make the electric pulse drill bit adapt to different actual rock drilling and creep into the demand.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cross-sectional view of an electrically pulsed drill bit according to an embodiment of the present invention;
FIG. 2 is a schematic view of the assembled high voltage electrode and electrode tab of FIG. 1;
fig. 3 is a schematic view of the assembled sleeve and low voltage electrode of fig. 1.
The reference numerals in fig. 1 to 3 are as follows:
1 is a high-voltage electrode, 11 is an electrode joint, 111 is a first external threaded column, 112 is a connecting disc, 12 is a center breaking clamping joint, 13 is a high-voltage electrode tentacle, 14 is a disc spring, 2 is a low-voltage electrode, 21 is a low-voltage electrode tentacle, 3 is a connecting rod, 31 is a fastening nut, 4 is a sleeve, 41 is a screw, 5 is an insulating sleeve, 51 is a first insulating sleeve, 52 is a second insulating sleeve, 53 is an insulating nut, and 54 is an insulating flat pad.
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.
The core of the invention is to provide an electric pulse drill bit which has high construction efficiency and is not easy to damage.
Referring to fig. 1-3, fig. 1 is a cross-sectional view of an electric pulse drill bit according to an embodiment of the present invention; FIG. 2 is a schematic view of the assembled high voltage electrode and electrode tab of FIG. 1; fig. 3 is a schematic view of the assembled sleeve and low voltage electrode of fig. 1.
The invention provides an electric pulse drill bit which comprises a high-voltage electrode 1, a low-
Specifically, the high-voltage electrode 1 and the low-
It can be understood that a certain gap is formed between the high-voltage electrode 1 and the low-
It should be noted that the specific structures and shapes of the high voltage electrode 1 and the
For example, the high-voltage electrode 1 may have a columnar structure, the low-
Of course, the high voltage electrode 1 and the
Of course, the high voltage electrode 1 and the
Preferably, the high voltage electrode 1 and the
The size of the gap between the high voltage electrode 1 and the
The high voltage electrode 1 and the
Connecting
The
The insulating sleeve 5 is arranged between the connecting
Therefore, when the electric pulse drill bit is used, the mechanical effect of the shock wave, the jet flow or the plasma channel generated by the pulse discharge of the high-voltage electrode 1 and the low-
Further, because high voltage electrode 1 can dismantle with connecting
In consideration of the realization of the specific structure of the high-voltage electrode 1, on the basis of the above embodiment, the high-voltage electrode 1 comprises a central crushing and clamping
It should be noted that the
It is understood that the present embodiment can form different high voltage electrodes 1 by providing different numbers, different shapes and different distributions of high
In consideration of the specific structure of the
Specifically, the connecting
The connecting
In consideration of the convenience of replacement of the high-voltage electrode 1, on the basis of the above embodiment, the center crushing clamp joint 12 includes the second externally threaded column and the clamping plate fixedly disposed on the outer peripheral portion of the second externally threaded column, and the high-
Specifically, the second external thread column is in threaded connection with the
It can be understood that, through adjusting the length of second external thread post and
In order to make the high voltage electrode 1 contact with the rock sufficiently, a
It can be understood that the embodiment realizes the flexible contact of the high-
It should be noted that, the specific number of the disc springs 14 is not limited in the present invention, and the number of the disc springs 14 may be one or at least two.
On the basis of the above embodiments, the low-
That is to say, each low
In consideration of the distribution of the high-
That is, in the present embodiment, all the high
In view of the ease of connection of the
That is, the present embodiment finally achieves the connection of the
In view of the convenience of connecting the high voltage electrode 1 to the electrical pulse generator, on the basis of the above-described embodiment, the connecting
That is, in the present embodiment, by setting the connecting
In consideration of the specific structure and assembly requirements of the insulating sleeve 5, on the basis of the above embodiments, the insulating sleeve 5 includes a first insulating
Further, an external thread is provided at an end of the
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The electric pulse drill provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
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