CN111456634B

CN111456634B - Drill bit for oil drilling

Info

Publication number: CN111456634B
Application number: CN202010272300.0A
Authority: CN
Inventors: 刘光; 张占奎
Original assignee: Cangzhou Great Drill Co ltd
Current assignee: CANGZHOU GREAT DRILL Co.,Ltd.
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2022-01-25
Anticipated expiration: 2040-04-09
Also published as: CN111456634A

Abstract

The invention discloses a drill bit for petroleum drilling, which structurally comprises a gear wheel, a tooth claw, a lubricating oil system and an installing head, wherein more than two gear wheels are arranged on the tooth claw, the gear wheel and the tooth claw are movably matched, the installing head is arranged in the middle of the bottom of the tooth claw, the installing head and the tooth claw are of an integrated structure, the lubricating oil system is arranged in the tooth claw, the lubricating oil system is provided with an oil pipe, a main pipeline, a cotton sliver and a rotating lubricating structure, the main pipeline is positioned in the middle of the installing head, the joint of the tooth claw and the gear wheel is lubricated by rotating the cotton sliver of the lubricating structure, a wetting layer is continuously extruded along with the rotation of the gear wheel to continuously lubricate, a new lubricating oil film is continuously formed, so that the problem of mechanical failure caused by high-temperature oil film damage and friction heat is avoided, the design of the cotton sliver can prevent dust from entering the lubricating oil to cause the quality change of the lubricating oil, the viscosity is changed and the adhesion is not achieved.

Description

Drill bit for oil drilling

Technical Field

The invention relates to the field of petroleum drilling and production machinery, in particular to a drill bit for petroleum drilling and production.

Background

In the oil exploitation, a certain oil drill is used for mechanical equipment exploitation, an oil drill bit is directly contacted with rocks on an oil well, the rocks are hard and dry and are contacted with the rocks, the friction force is increased, if the roller type drill bit is attached to the roller type drill bit, the roller type drill bit can be contacted with the rocks, an oil film formed by lubricating oil coated on the surface can be easily damaged, once the oil film is damaged, the friction heat between a roller and a claw can be quickly increased, the rotating speed is reduced, the impact force is weakened, the reaction force borne by the roller can be sharply increased, the falling-off problem is caused, and therefore the roller type joint needs to be continuously lubricated, and the blockage caused by dust can be avoided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides an oil bores adopts drill bit, its structure includes gear wheel, claw, lubricating oil system, installation head, be equipped with more than two gear wheels on the claw, gear wheel and claw adopt clearance fit, the bottom of claw is equipped with the installation head in the middle of being positive, installation head and claw structure as an organic whole, the inside lubricating oil system that is equipped with of claw, the lubricating oil system is equipped with oil pipe, trunk line, silver, rotation lubricating structure, the trunk line is located the middle of installation head, oil pipe installs the one end at the trunk line, the trunk line is kept away from the end that keeps off the stopper and is equipped with the branch pipe, and every branch pipe end extends to the junction of claw and gear wheel, all install the silver in trunk line and the branch pipe, the rotation lubricating structure is still installed to the branch pipe end, it mutually supports to rotate lubricating structure and claw, gear wheel junction.

As a further optimization of the technical scheme, a blocking plug is arranged in the middle of one end of the main pipeline, the blocking plug and the main pipeline are in interference fit, and the oil pipe is vertically fixed from the middle of the blocking plug

As the further optimization of this technical scheme, the lubrication structure that rotates is equipped with cuttage dish, ball, soaks the layer, the cuttage dish is close to the branch pipe, be equipped with the ball on the cuttage dish other terminal surface, ball and cuttage dish mutually support, and the ball other end is laminated with soaking the layer mutually, it mutually supports with the gear wheel to soak the layer.

As the further optimization of the technical scheme, the inserting disc is provided with a compass, forking strips and an engaging column, the compass is positioned on the ball, the position of the compass deviated from the center of the circle is provided with the forking strips, the forking strips extend to the edge position of the compass, the other end of the forking strips is vertically provided with the engaging column, the engaging column and the forking strips are matched with each other, and the top end of the engaging column is matched with the branch pipe.

As a further optimization of this technical scheme, the branch pipe end is installed and is colluded the cotton post, collude the cotton post and include the waist post, encircle post, triangle and collude the post, the topmost of encircling the post is equipped with the waist post, waist post and encircle post clearance fit, it then the activity is fixed with the triangle and colludes the post to encircle the post other end, the triangle colludes post and encircles the post and be the integral structure.

As a further optimization of the technical scheme, the elastic ring is arranged at the notch of the waist column, the elastic ring and the waist column are matched with each other, and the elastic ring and the inner wall of the branch pipe are in friction with each other.

As a further optimization of the technical scheme, the triangular hook column is integrally in a conical structure, the tip of the triangular hook column is in a smooth arc shape, and the side surface of the triangular hook column is provided with a half-moon-shaped notch.

As a further optimization of the technical scheme, the maximum diameter of the lumbar column is equal to that of the branch pipe.

Advantageous effects

Compared with the prior art, the drill bit for oil drilling has the following advantages:

1. the invention lubricates the joint of the tooth claw and the gear wheel by rotating the cotton strip of the lubricating structure, continuously extrudes the wetting layer along with the rotation of the gear wheel, continuously lubricates and continuously forms a new lubricating oil film, thereby avoiding the problem of mechanical failure caused by high-temperature friction heat because the oil film is damaged.

2. The cotton sliver lubricating device has the advantages that the purpose of lubricating the cotton sliver is realized by the mutual matching of the blocking plug and the oil pipe, the oil pipe is vertically fixed from the middle of the blocking plug and stably supported, the oil pipe is prevented from being inclined and separated, and the deep lubrication is realized by penetrating into the cotton sliver.

3. The rotary lubricating structure of the invention adopts the cutting disc to be immersed in the ball, the lubrication is more targeted and is continuously carried out, after the oil film is prevented from being damaged, no subsequent lubricating oil is continuously compensated, the friction force at the joint of the tooth claw and the cone is increased, the continuous temperature is increased, and meanwhile, the forked strips guide the lubricating oil to enter the ball, thereby further improving the pertinence of the lubrication.

4. The cotton sliver is hooked by the cotton hooking column, so that the problem that the cotton sliver does not move up due to stone ore drilling and is not lubricated is solved, and furthermore, the elastic ring arranged at the waist column is in friction with the inner wall of the branch pipe, so that the problem that the cotton sliver does not move in the process of integral rotation or knocking of the drill bit is solved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic perspective view of a drill bit for oil drilling according to the present invention.

FIG. 2 is a schematic cross-sectional view of an oil drilling bit of the present invention.

FIG. 3 is a schematic cross-sectional view of the oil drilling bit with the cotton hooking column according to the present invention.

Fig. 4 is a schematic plan view of the skewing disk of the present invention.

FIG. 5 is a schematic plan view of a cotton hooking rod according to the present invention.

In the figure: the device comprises a cone 1, tooth claws 2, a lubricating oil system 3, an installing head 4, an oil pipe 31, a main pipe 32, a cotton sliver 34, a rotary lubricating structure 35, a blocking plug 33, a cutting disc 3-2, balls 3-3, a wetting layer 3-4, a compass 3-21, a forked strip 3-22, an engagement column 3-32, a cotton hooking column 3-1, a waist column 3-11, a winding column 3-13, a triangular hook column 3-14 and an elastic ring 3-12.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Example one

Referring to fig. 1-5, the invention provides an oil drilling and production drill bit, which comprises a cone 1, a claw 2, a lubricating oil system 3 and an installation head 4, wherein the claw 2 is provided with more than two cones 1, the cone 1 and the claw 2 are movably matched, the installation head 4 is arranged in the middle of the bottom of the claw 2, the installation head 4 and the claw 2 are integrated, the lubricating oil system 3 is arranged in the claw 2, the lubricating oil system 3 is provided with an oil pipe 31, a main pipe 32, a cotton sliver 34 and a rotary lubricating structure 35, the main pipe 32 is arranged in the middle of the installation head 4, the oil pipe 31 is arranged at one end of the main pipe 32, the tail end of the main pipe 32 far away from a stopper 33 is provided with a branch pipe, the tail end of each branch pipe extends to the joint of the claw 2 and the cone 1, the cotton sliver 34 is arranged in the main pipe 32 and the branch pipes, the tail end of the branch pipe is further provided with a rotary lubricating structure 35, and the rotary lubricating structure 35 is matched with the joint of the tooth claw 2 and the cone 1.

The stopper 33 is arranged in the middle of one end of the main pipeline 32, the stopper 33 and the main pipeline 32 are in interference fit, the oil pipe 31 is vertically fixed from the middle of the stopper 33 and stably supported, and the oil pipe 31 is prevented from being inclined and separated and cannot go deep into the cotton sliver 34 to be deeply lubricated.

The rotary lubricating structure 35 is provided with a cutting disc 3-2, balls 3-3 and a soaking layer 3-4, the cutting disc 3-2 is close to the branch pipe, the balls 3-3 are arranged on the other end face of the cutting disc 3-2, the balls 3-3 are matched with the cutting disc 3-2, the other end of the balls 3-3 is attached to the soaking layer 3-4, the soaking layer 3-4 is matched with the gear wheel 1, the cutting disc 3-2 is used for guiding lubricating oil, the lubricating oil is completely soaked in the balls 3-3, the lubrication is more targeted and is continuously lubricated, after oil film damage is avoided, no subsequent lubricating oil is continuously compensated, the friction force at the joint of the gear claw 2 and the gear wheel 1 is increased, and the continuous temperature is increased.

The cutting disc 3-2 is provided with a compass 3-21, a bifurcation strip 3-22 and an engagement column 3-32, the compass 3-21 is located on a ball 3-3, the bifurcation strip 3-22 is arranged at the position of the compass 3-21 deviating from the center of circle, the bifurcation strip 3-22 extends to the edge of the compass 3-21, the other end of the bifurcation strip 3-22 is vertically provided with the engagement column 3-32, the engagement column 3-32 is matched with the bifurcation strip 3-22, the top end of the engagement column 3-32 is matched with a branch pipe, and lubricating oil is guided to enter the ball 3-3 through the bifurcation strip 3-22, so that the lubricating force of the ball 3-3 is improved.

When the lubricating oil lubricating device is used, the cone 1 continuously extrudes the wetting layers 3-4 along with the change of the inclination direction of the cone 1 in the rotating process, the cotton sliver 34 of the rotating lubricating structure 35 lubricates the joint of the tooth claw 2 and the cone 1, the lubricating oil continuously lubricates along with the rotation of the cone 1, and a new lubricating oil film is continuously formed, so that the problem of mechanical failure caused by high-temperature friction heat due to damage of the oil film is avoided, the cotton sliver 34 is used for storing and extruding the lubricating oil, dust can only adhere to the top or the bottom of the cotton sliver 34 and cannot enter the lubricating oil in the middle of the cotton sliver 34, the lubricating oil is changed in quality and viscosity and cannot adhere to the cotton sliver 34, the blocking plug 33 and the oil pipe 31 are used for mutually matched for lubricating the cotton sliver 34, the oil pipe 31 is vertically fixed from the middle of the blocking plug 33 and stably supported, and the oil pipe 31 is prevented from being skewed, And the separation is realized, the deep lubrication is performed when the oil film reaches the depth of the cotton sliver 34, the extruded lubricating oil is guided to be soaked into the balls 3-3 by adopting the forked strips 3-22 on the plug discs 3-2 during the lubrication, the lubrication is more targeted and is continuously performed, and the problem that the friction force at the joint of the tooth claw 2 and the cone 1 is increased and the continuous temperature is increased due to the fact that no subsequent lubricating oil is continuously compensated after the oil film is damaged, and finally the fault is caused is avoided.

Example two

The end of the branch pipe is provided with a cotton hooking column 3-1, the cotton hooking column 3-1 comprises a waist column 3-11, a winding column 3-13 and a triangular hook column 3-14, the waist column 3-11 is arranged at the topmost end of the winding column 3-13, the waist column 3-11 is movably matched with the winding column 3-13, the triangular hook column 3-14 is movably fixed at the other end of the winding column 3-13, the triangular hook column 3-14 and the winding column 3-13 are of an integrated structure, and the cotton hooking column 3-1 hooks a cotton sliver to prevent the cotton hooking column from moving upwards due to stone ore drilling and without lubrication.

Elastic rings 3-12 are arranged at the notches of the waist columns 3-11, the elastic rings 3-12 are matched with the waist columns 3-11, and the elastic rings 3-12 rub against the inner walls of the branch pipes, so that the problem that the drill bit cannot move in the integral rotation or knocking process is solved.

The triangular hook columns 3-14 are integrally conical structures, the tips of the triangular hook columns are smooth circular arcs, and half-moon-shaped notches are formed in the side faces of the triangular hook columns, so that lubricating oil can be guided to flow to the positions where the balls 3-3 are located conveniently, the lubricating oil can be lubricated conveniently, and the problem of blockage is avoided.

The maximum diameter of the waist columns 3-11 is equal to that of the branch tubes, so that relative movement cannot occur when the cotton sliver 34 is fixed, and the lubricating oil cannot be lubricated in place.

On the basis of the first embodiment, the cotton hooking column 3-1 can be installed at the tail end of the branch pipe, the cotton hooking column 3-1 is adopted for hooking, cotton slivers are hooked, the cotton slivers are prevented from moving upwards due to stone ore drilling, lubrication is not carried out, furthermore, the elastic ring 3-12 arranged at the waist column 3-11 is in friction with the inner wall of the branch pipe, the situation that the cotton slivers cannot move in the whole rotating or knocking process of the drill is guaranteed, and stability is enhanced.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A drill bit for oil drilling and production is characterized in that: the structure of the tooth claw type lubricating device comprises a cone (1), tooth claws (2), a lubricating oil system (3) and an installing head (4), wherein more than two cones (1) are arranged on the tooth claws (2), the cone (1) and the tooth claws (2) are movably matched, the installing head (4) is arranged in the middle of the bottom of the tooth claws (2), the installing head (4) and the tooth claws (2) are of an integrated structure, the lubricating oil system (3) is arranged inside the tooth claws (2), the lubricating oil system (3) is provided with an oil pipe (31), a main pipe (32), a cotton strip (34) and a rotating lubricating structure (35), the main pipe (32) is positioned in the middle of the installing head (4), the oil pipe (31) is arranged at one end of the main pipe (32), the tail end of the main pipe (32) far away from a blocking plug (33) is provided with a branch pipe, and the tail end of each branch pipe extends to the joint of the tooth claws (2) and the cone (1), cotton slivers (34) are arranged in the main pipeline (32) and the branch pipes, the tail ends of the branch pipes are also provided with rotary lubricating structures (35), and the rotary lubricating structures (35) are matched with the joints of the tooth claws (2) and the gear wheel (1);

a blocking plug (33) is arranged in the middle of one end of the main pipeline (32), and the blocking plug (33) is in interference fit with the main pipeline (32);

the rotary lubricating structure (35) is provided with a cutting disc (3-2), balls (3-3) and a wetting layer (3-4), the cutting disc (3-2) is close to the branch pipe, the balls (3-3) are arranged on the other end face of the cutting disc (3-2), the balls (3-3) and the cutting disc (3-2) are matched with each other, the other end of the balls (3-3) is attached to the wetting layer (3-4), and the wetting layer (3-4) is matched with the gear wheel (1) with each other;

the cutting disc (3-2) is provided with a compass (3-21), forking strips (3-22) and a connecting column (3-32), the compass (3-21) is located on the ball (3-3), the forking strips (3-22) are arranged at the positions of the compass (3-21) deviating from the circle center, the forking strips (3-22) extend to the edge position of the compass (3-21), the connecting column (3-32) is vertically arranged at the other end of the forking strips (3-22), the connecting column (3-32) is matched with the forking strips (3-22), and the top ends of the connecting columns (3-32) are matched with the branch pipes;

the cotton hooking column is installed at the tail end of the branch pipe (3-1), the cotton hooking column (3-1) comprises a waist column (3-11), a winding column (3-13) and a triangular hook column (3-14), the waist column (3-11) is arranged at the topmost end of the winding column (3-13), the waist column (3-11) is movably matched with the winding column (3-13), and the triangular hook column (3-14) is movably fixed at the other end of the winding column (3-13).

2. The drill bit for oil drilling and production according to claim 1, wherein: elastic rings (3-12) are arranged at the notches of the waist columns (3-11), the elastic rings (3-12) are matched with the waist columns (3-11), and the elastic rings (3-12) rub against the inner walls of the branch pipes.

3. The drill bit for oil drilling and production according to claim 1, wherein: the triangular hook columns (3-14) are integrally conical in structure, the tips of the triangular hook columns are smooth circular arcs, and the side faces of the triangular hook columns are provided with half-moon-shaped notches.

4. The drill bit for oil drilling and production according to claim 1, wherein: the maximum diameter of the waist column (3-11) is equal to that of the branch pipe.