CN218407322U - Drill bit - Google Patents

Abstract

The utility model discloses a drill bit, including drill bit main part and connector, the connector sets up the top in the drill bit main part, the bottom of drill bit main part is provided with down the drill bit portion, the outside of drill bit main part evenly is provided with the spiral arch, the inside central point of drill bit main part puts the department and is provided with the cooling water chamber, the apopore has evenly been seted up on the surface of drill bit main part. This drill bit is through the outside both sides of drill bit portion and both ends welded fastening respectively have the maintenance scraper down, the maintenance scraper is the most convex part of drill bit, when using, because the maintenance scraper is the most convex part of this drill bit, consequently, the maintenance scraper can contact with the inner wall of well always, the drill bit is at the in-process that drills down of high-speed rotation, the maintenance scraper can be clearly scraped the inner wall of well, thereby the inner wall of well is maintained, the clean degree of well is improved, the functionality of this drill bit has been strengthened greatly, the solution is that the function of not having the maintenance well inner wall, the problem that the functionality is not strong enough.

Description

Drill bit

Technical Field

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

Background

The bit is the main component of the drilling equipment, its main function is to break rock, form the well bore, the rotary bit is the bit commonly used in the petroleum industry at present, the rotary bit will produce the rotation under the mechanical drive, thus drive the whole bit to produce the centripetal movement, and make the rock crack and break through the cutting, grinding, play a role of drilling downward, according to the difference of working environment, regional environment, the specification, shape of the bit should be different too, whether the bit adapts to the rock property and quality, play a very important role in choosing the drilling process, especially produce the enormous influence to the drilling quality, drilling speed, drilling cost, while carrying on the oil drilling work, should be according to the concrete need, the concrete design scheme, reasonably, choose the bit scientifically, the bit is a kind of rock breaking tool that the industry widely used in exploration of oil and natural gas at present, it has improved the mechanical drilling effectively, shorten the drilling cycle, the bit chip removal effect that the bit used on the market at present is bad, influence the rate of the well bore, and do not have to the bit to real-time cooled structure of the bit, lead to the bit because the temperature damage of easy restoration, can's unable use life-span of the bit; the bottom of the drill bit is lack of a tapping head for assisting drilling, so that efficient drilling work is not facilitated; the function of trimming the inner wall of the well hole is not achieved, and the functionality is not strong enough; an improvement has now been made to a drill bit that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drill bit to it is not good to propose drill bit chip removal effect in solving above-mentioned background art, influences the probing speed of well, and does not have the structure to the real-time cooling of drill bit, leads to the inside easy because the high prosthetic damage of emergence of temperature of drill bit, influences the life's of drill bit problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drill bit, includes drill bit main part and connector, the connector sets up the top at the drill bit main part, the bottom of drill bit main part is provided with down the drill bit portion, the outside of drill bit main part evenly is provided with the spiral arch, the inside central point of drill bit main part puts the department and is provided with the cooling water chamber, the apopore has evenly been seted up on the surface of drill bit main part.

Preferably, a plurality of groups are uniformly arranged on the water outlet holes, and the water outlet holes are communicated with the inside of the cooling water cavity.

Preferably, a lower drill bit head is arranged at the center of the bottom end of the lower drill head, and the bottom end of the lower drill head is uniformly provided with protruding teeth.

Preferably, the outer surface of the lower drill bit part is provided with a diamond coating, the protruding teeth are distributed in an annular and equidistant mode, and three layers are arranged from inside to outside.

Preferably, the two sides and two ends of the outer part of the lower drill bit part are respectively fixedly welded with trimming scrapers, and the trimming scrapers are the most protruding parts of the drill bit.

Preferably, four groups of the trimming scrapers are arranged at equal intervals.

Preferably, the dressing blade is a member made of diamond.

Compared with the prior art, the beneficial effects of the utility model are that: the drill bit not only realizes better chip removal effect of the drill bit and improves the drilling speed of a well, but also has a structure for cooling the drill bit in real time, prevents the internal part of the drill bit from being easily damaged because of irreparable damage caused by overhigh temperature, ensures the service life of the drill bit, realizes the bottom part of the drill bit provided with a tapping and hardening cutter head for assisting drilling, is beneficial to carrying out efficient drilling work, realizes the function of finishing the inner wall of the well, and has stronger functionality;

(1) The spiral protrusions are uniformly arranged outside the drill bit main body, the cooling water cavity is arranged in the center of the inside of the drill bit main body, water outlet holes are uniformly formed in the surface of the drill bit main body, when the drill bit is used, the spiral protrusions outside the drill bit main body can uniformly and orderly discharge chips generated in a drilling process, resistance brought by the chips to drilling operation is reduced, drilling efficiency can be effectively improved, cooling water is continuously fed into the cooling water cavity and uniformly discharged through the water outlet holes, heat accumulated in the drill bit main body can be taken away in real time, irreparable damage to the inside of the drill bit due to overhigh temperature is prevented, and the service life of the drill bit is ensured;

(2) The lower drill bit is arranged at the center of the bottom end of the lower drill bit part, the bottom end of the lower drill bit part is uniformly provided with the raised teeth, and the outer surface of the lower drill bit part is provided with the diamond coating;

(3) The trimming scrapers are welded and fixed on two sides and two ends of the outer portion of the lower drill bit portion respectively, the trimming scrapers are the most protruding portions of the drill bit, when the drill bit is used, the trimming scrapers are the most protruding portions of the drill bit, the trimming scrapers can be always in contact with the inner wall of a well hole, and the trimming scrapers can scrape the inner wall of the well hole clearly in the process of drilling the drill bit at high-speed rotation, so that the inner wall of the well hole is trimmed, the smoothness of the well hole is improved, and the functionality of the drill bit is greatly enhanced.

Drawings

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

fig. 2 is a schematic view of the bottom-drilling head of the present invention;

FIG. 3 is a schematic view of the drill bit main body of the present invention showing an enlarged top view of a partial section;

fig. 4 is an enlarged partial cross-sectional view of the point a in fig. 1 according to the present invention.

In the figure: 1. a drill bit body; 2. a connector; 3. a spiral protrusion; 4. a water outlet hole; 5. a drill bit is lowered; 6. a raised tooth; 7. drilling a head part; 8. trimming a scraper; 9. and a cooling water cavity.

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.

Example 1: referring to fig. 1-4, a drill bit comprises a drill bit main body 1 and a connector 2, wherein the connector 2 is arranged at the top end of the drill bit main body 1, a lower drill bit 7 is arranged at the bottom end of the drill bit main body 1, spiral protrusions 3 are uniformly arranged outside the drill bit main body 1, a cooling water cavity 9 is arranged at the center position inside the drill bit main body 1, water outlets 4 are uniformly formed in the surface of the drill bit main body 1, a plurality of groups of water outlets 4 are uniformly arranged, and the water outlets 4 are communicated with the inside of the cooling water cavity 9;

specifically, as shown in fig. 1 and 3, the spiral protrusion 3 outside the drill bit main body 1 can discharge the chips generated in the drilling process in an even and orderly manner, the resistance brought by the chips to the drilling operation is reduced, the drilling efficiency can be effectively improved, and the cooling water is continuously fed into the cooling water cavity 9, and can be uniformly discharged through the water outlet hole 4, so that the heat accumulated inside the drill bit main body 1 can be taken away in real time, the damage that the drill bit can not be repaired due to overhigh temperature can be prevented from easily occurring inside the drill bit, and the service life of the drill bit is ensured.

Example 2: a lower drill bit head 5 is arranged at the central position of the bottom end of the lower drill head part 7, raised teeth 6 are uniformly arranged at the bottom end of the lower drill head part 7, a diamond coating is arranged on the outer surface of the lower drill head part 7, the raised teeth 6 are distributed in an annular shape at equal intervals, and three layers of the raised teeth 6 are arranged from inside to outside;

specifically, as shown in fig. 1 and 2, the lower drill bit 5 can play a role in tapping solids in the drill bit drilling process, the setting of the convex teeth 6 can reduce the stress area between the bottom of the lower drill bit 7 and the ground in the drilling process, so that the drilling of the drill bit is assisted, the efficient drilling work of the drill bit is facilitated, and the diamond coating on the surface of the lower drill bit 7 can effectively improve the structural strength of the drill bit and enhance the durability of the drill bit.

Example 3: trimming scrapers 8 are respectively welded and fixed on two sides and two ends of the outer part of the lower drill bit part 7, the trimming scrapers 8 are the most protruding parts of the drill bit, four groups of trimming scrapers 8 are arranged at equal intervals, and the trimming scrapers 8 are members made of diamond materials;

specifically, as shown in fig. 1, 2 and 4, because the trimming blade 8 is the most protruded part of the drill bit, the trimming blade 8 can always contact with the inner wall of the borehole, and during the drilling process of the drill bit under high-speed rotation, the trimming blade 8 will scrape the inner wall of the borehole, so as to trim the inner wall of the borehole, improve the smoothness of the borehole, and greatly enhance the functionality of the drill bit.

The working principle is as follows: the utility model discloses when using, at first, the protruding 3 of spiral of drill bit main part 1 outside can be with the even orderly discharge of piece that the probing in-process produced, reduce the resistance that the piece brought for the probing operation, can effectively improve the probing efficiency, and through sending into the cooling water to cooling water chamber 9 inside incessantly, the cooling water can pass through apopore 4 even discharge, secondly lower drill bit head 5 can play the effect of attacking in the drill bit underdrilling in-process, setting up of protruding tooth 6 can reduce the lifting surface area of underdrill bit 7 bottom and ground at the in-process that underdrills, and underdrill bit 7 surface coating diamond coating can effectively improve the structural strength of drill bit, at last because the most salient part of finishing scraper 8 for this drill bit, consequently, finishing scraper 8 can be always with the inner wall contact of well, the drill bit is at high speed rotation underdrill in-process, the scraper 8 can scrape the inner wall of well clearly, this drill bit can be real-time with the heat of the inside drill bit that gathers of drill bit main part 1, prevent that the inside damage that can's too high emergence restoration, guarantee the life of drill bit, and the auxiliary work underdrill bit, and be favorable to carry out the high efficiency, this drill bit functional cleanliness of drill bit has greatly, this drill bit, the inner wall of boring of the improvement of drill bit structure is improved the drillbit, the drillhole.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A drill bit, includes drill bit main part (1) and connector (2), its characterized in that: connector (2) set up the top in drill bit main part (1), the bottom of drill bit main part (1) is provided with down drill bit portion (7), the outside of drill bit main part (1) evenly is provided with spiral protrusion (3), the inside central point of drill bit main part (1) puts the department and is provided with cooling water cavity (9), apopore (4) have evenly been seted up on the surface of drill bit main part (1).

2. A drill bit according to claim 1, wherein: the water outlet holes (4) are evenly provided with a plurality of groups, and the water outlet holes (4) are communicated with the inside of the cooling water cavity (9).

3. A drill bit according to claim 1, wherein: the center position department of underdrill head portion (7) bottom is provided with underdrill tool bit (5), the bottom of underdrill head portion (7) evenly is provided with protruding tooth (6).

4. A drill bit according to claim 3, wherein: the outer surface of the lower drill bit part (7) is provided with a diamond coating, the protruding teeth (6) are distributed in an annular and equidistant mode, and the three layers of the protruding teeth (6) are arranged from inside to outside.

5. A drill bit according to claim 1, wherein: and trimming scrapers (8) are respectively welded and fixed on two sides and two ends of the outer part of the lower drill bit part (7), and the trimming scrapers (8) are the most protruding parts of the drill bit.

6. A drill bit according to claim 5, characterized in that: four groups of trimming scrapers (8) are arranged at equal intervals.

7. A drill bit according to claim 5, characterized in that: the trimming scraper (8) is a member made of diamond.

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