CN217666653U

CN217666653U - Open-hole drill bit

Info

Publication number: CN217666653U
Application number: CN202221797574.2U
Authority: CN
Inventors: 张洪; 廖良
Original assignee: Chengdu Zhixin Refractories Technology Co ltd
Current assignee: Chengdu Zhixin Refractories Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-28
Anticipated expiration: 2032-07-13

Abstract

An open-hole drill bit comprising: the drill bit, its center establishes the through-hole, and the through-hole sets up and link up the drill bit both ends along the axial lead, and the drill bit includes drill bit portion and connecting portion, and on the connecting portion was located to drill bit portion, drill bit portion included a plurality of cutting sword and base, and the cutting sword is locating on the base of circumference array. When the furnace wall is drilled, the sticky matter at the drilling hole of the furnace wall is guided, so that the sticky matter is prevented from being attached to the cutting edge of the drill bit, and the secondary use of the drill bit is not influenced.

Description

Open-hole drill bit

Technical Field

The utility model belongs to ferroalloy stove instrument of opening a hole field especially relates to an open a hole drill bit.

Background

The ferroalloy furnace is mainly used for equipment for smelting ferroalloy. The prior art needs to open a hole in the ferroalloy furnace before discharging the molten metal in the ferroalloy furnace, and when the open-hole drill is used for opening a hole, the thick metal on the inner wall of the furnace is attached to the cutting edge of the drill and is difficult to remove, so that the cutting edge of the drill is passivated, and secondary use is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art, the utility model provides an open-hole drill bit when carrying out oven open-hole drilling, carries out the water conservancy diversion to the dope of oven drilling department, avoids the dope to adhere to on the cutting edge of drill bit to do not influence the secondary use of drill bit.

In order to realize the purpose of the utility model, the following scheme is proposed:

an open-hole drill bit comprising: the drill bit, its center establishes the through-hole, and the through-hole sets up and link up the drill bit both ends along the axial lead, and the drill bit includes drill bit portion and connecting portion, and on connecting portion were located to drill bit portion, drill bit portion included a plurality of cutting sword and base, and the cutting sword was located on the base of circumference array.

Furthermore, a plurality of slag discharge ports are arranged on the base and are positioned between two adjacent cutting knives.

Furthermore, the slag discharge port is arc-shaped.

Further, the slag discharge port is formed by inwards sinking from the outer side wall of the base.

Furthermore, two sides of the top of the cutting knife are respectively provided with symmetrically arranged inclined planes.

Furthermore, the upper end surface and the lower end surface of the base are respectively provided with a convex part which is symmetrically arranged.

Furthermore, the connecting part is positioned on the convex part of the lower end surface of the base.

Furthermore, the periphery of the connecting part is provided with a thread section.

Furthermore, the drill bit is made of high-temperature wear-resistant materials.

The beneficial effects of the utility model reside in that:

1. the through hole penetrates through the drill bit along the axial lead of the drill bit, the through hole can be used as a cooling hole in the drilling process of the drill bit, so that the cooling is facilitated, and when the drill bit drills through the furnace wall, sticky substances in the furnace wall can flow out along the through hole, so that the sticky substances are effectively prevented from being attached to a cutting edge of the drill bit, the secondary use of the drill bit is not influenced, and the service life of the drill bit is prolonged;

2. the both sides of cutting edge are equipped with the inclined plane of symmetry setting, utilize cutting residue to discharge, when increase the heat radiating area of drill bit portion.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 shows an isometric view of the present application.

Fig. 2 shows a through-hole position structural view of the present application.

The labels in the figure are: the drill bit-1, the drill bit part-12, the cutting knife-121, the base-122, the slag discharge port-123, the inclined plane-124, the bulge-125 and the connecting part-13.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are some embodiments of the present invention, not all embodiments.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and this is only for the convenience of description of the present invention and simplification of the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-2, an open-hole drill includes: the center of the drill bit 1 is provided with a through hole 11, the through hole 11 is arranged along the axial lead and penetrates through two ends of the drill bit 1, and when the drill bit 1 performs drilling operation, the through hole 11 can cool the drill bit 1 and drill a power hole distributed outside slag.

Specifically, the drill bit 1 comprises a drill bit portion 12 and a connecting portion 13, the drill bit portion 12 is arranged on the connecting portion 13, the drill bit portion 12 is used for drilling, and the connecting portion 13 is used for installing the drill bit 1 on a drill frame.

Specifically, the drill head 12 includes a plurality of cutters 121 and a base 122, the cutters 121 are circumferentially arranged on the base 122, so that the stress of the whole structure is uniform, the service life of the drill bit 1 is prolonged, and the two sides of the cutting edge of the cutters 121 are respectively provided with symmetrically arranged inclined planes 124, so that the heat dissipation area is increased, and the discharge of the cut residues is facilitated; the base 122 is provided with a plurality of slag discharge ports 123, and the slag discharge ports 123 are located between two adjacent cutting blades 121, so that the chips and residues between the two cutting blades 121 can be discharged more conveniently.

Specifically, the slag discharging port 123 is arc-shaped, so that the phenomenon that the stress concentration area exists at the joint of the slag discharging port 123 and the base 122 is effectively avoided, and the service life of the drill bit 1 is prolonged.

Specifically, the upper and lower end surfaces of the base 122 are respectively provided with symmetrically arranged protrusions 125, which are convenient for cleaning the cuttings at the joint of the base 122 and the cutting blade 121 and the dust deposited between the base 122 and the connecting portion 13.

Specifically, the connecting portion 13 is located on the protruding portion 125 of the lower end surface of the base 122, and a thread section is disposed on the periphery of the connecting portion 13, so that the drill bit 1 is convenient to replace.

Specifically, the drill bit 1 is made of high-temperature wear-resistant materials, and the heat-resistant temperature is over 1800 ℃.

The foregoing is only a preferred embodiment of the invention and is not intended to be the only or limiting embodiment of the invention. It should be understood by those skilled in the art that various changes and equivalent substitutions made herein may be made without departing from the scope of the invention as defined by the appended claims.

Claims

1. An open-hole drill bit comprising: drill bit (1), its characterized in that, through-hole (11) are established at drill bit (1) center, and through-hole (11) set up and link up drill bit (1) both ends along the axial lead, and drill bit (1) is including drill bit portion (12) and connecting portion (13), and on connecting portion (13) were located in drill bit portion (12), drill bit portion (12) included a plurality of cutting sword (121) and base (122), and cutting sword (121) are locating on base (122) of circumference array.

2. The open-hole drill bit according to claim 1, characterized in that the base (122) is provided with a plurality of slag outlets (123), and the slag outlets (123) are positioned between two adjacent cutting blades (121).

3. Open-hole drill bit according to claim 2, characterized in that the slag discharge opening (123) is arc-shaped.

4. The open-hole drill bit according to claim 2, characterized in that the slag discharge port (123) is formed recessed inward from an outer side wall of the base (122).

5. Drill bit according to claim 1, characterized in that the cutting blades (121) are provided with symmetrically arranged bevels (124) on each side of their top.

6. The open-hole drill bit according to claim 1, characterized in that the upper and lower end faces of the base (122) are provided with symmetrically arranged lugs (125), respectively.

7. The open-hole drill bit according to claim 6, characterized in that the connecting portion (13) is located on a projection (125) on the lower end face of the base (122).

8. Open-hole drill bit according to claim 1, characterized in that the connection portion (13) is provided with a threaded section on its outer circumference.

9. Open-hole drill bit according to claim 1, characterized in that the drill bit (1) is made of a high temperature wear resistant material.