CN210768674U

CN210768674U - Drilling tool

Info

Publication number: CN210768674U
Application number: CN201921663003.8U
Authority: CN
Inventors: 张剑锋; 王龙刚; 王德健
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-16
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to an engineering machine tool technical field particularly, relates to a drilling tool, including the barrel, and install in the barrel and with the coaxial first helical blade and the second helical blade that set up of barrel, in the first direction the one end of barrel has and supplies the disintegrating slag to get into the port of barrel in the first direction the second helical blade is located the port with between the first helical blade, first helical blade's pitch is less than second helical blade's pitch, first direction does the axial of barrel. The application aims to solve the problem that broken stones often fall from the inside of a cylindrical drill in the existing process of lifting the cylindrical drill, and provides a drilling tool.

Description

Drilling tool

Technical Field

The application relates to the technical field of engineering machinery, in particular to a drilling tool.

Background

The drum drill is mainly used for collecting soil or broken stone and generally comprises an external drum body, a helical blade arranged inside the drum body and drill teeth arranged at the bottom of the drum body. However, in the process of lifting the cylindrical drill, broken stones often fall from the cylindrical drill, and the work result is adversely affected.

SUMMERY OF THE UTILITY MODEL

The application aims to solve the problem that broken stones often fall from the inside of a cylindrical drill in the existing process of lifting the cylindrical drill, and provides a drilling tool.

In order to achieve the purpose, the following technical scheme is adopted in the application:

one aspect of the application provides a drilling tool, including the barrel, and install in the barrel and with the coaxial first helical blade and the second helical blade that sets up of barrel, in the first direction the one end of barrel has the confession disintegrating slag to get into the port of barrel in the first direction the second helical blade is located the port with between the first helical blade, first helical blade's pitch is less than second helical blade's pitch, first direction does the axial of barrel.

Optionally, the first helical blade has a first end disposed proximate the second helical blade, the second helical blade has a second end disposed proximate the first helical blade, the first end being located between the second end and the port in the first direction.

The technical scheme has the beneficial effects that: thus, when the crushed slag falls downwards from the first spiral blade, the second end can be used for blocking the crushed slag, particularly crushed stone with larger particle size, and the amount of the crushed slag falling from the cylinder body is further reduced.

Optionally, the first end and the second end overlap in the first direction.

The technical scheme has the beneficial effects that: like this at the drilling-in process, make the disintegrating slag can be more smooth from second helical blade be carried on first helical blade, make the disintegrating slag collection process more smooth and easy.

Optionally, the first helical blade has a first end disposed adjacent to the second helical blade, the first end being of a resilient structure.

The technical scheme has the beneficial effects that: the first end can have a certain deformation amount in the first direction, when large-particle-size crushed stone is collected, the large-particle-size crushed stone can be smoothly conveyed to the first spiral blade and continuously moves towards the direction far away from the port under the action of axial pressure given by crushed slag, and after the large-particle-size crushed stone passes through the first end, the first end can recover elastic deformation to block the crushed slag.

Optionally, a slag containing cavity is formed in the cylinder, and the slag containing cavity is located on one side, away from the second helical blade, of the first helical blade in the first direction.

The technical scheme has the beneficial effects that: the capacity of the slag in the barrel is increased by arranging the slag containing cavity, particularly the containing space of large-particle-size crushed stones is increased, so that more slag can be collected by single drilling, and the working efficiency is improved.

Optionally, the outer edge of the first helical blade and the outer edge of the second helical blade are both embedded in the inner wall of the cylinder.

The technical scheme has the beneficial effects that: this increases the overall strength of the drill.

Optionally, a through hole is formed in the wall of the cylinder to penetrate the wall.

The technical scheme has the beneficial effects that: at the in-process that the disintegrating slag was gathered, the condition of rubble card in the helical blade can appear, through setting up above-mentioned through-hole, then can stretch into the disintegrating slag that blocks in the barrel with the help of the instrument with the instrument from the through-hole, alleviates disintegrating slag jam condition in the barrel, makes disintegrating slag collection work more smooth and easy.

Optionally, the through hole is a strip, and the through hole extends in the first direction.

The technical scheme has the beneficial effects that: this makes the instrument stretch into the interior first direction of through-hole and has the operating range of increase, and then just can act on different positions in the barrel through single through-hole, has improved work efficiency.

Optionally, the wall is formed with a set of through holes including at least two of the through holes arranged in the first direction.

The technical scheme has the beneficial effects that: in order to ensure the strength of the barrel, the length of a single through hole cannot be too large, so that the range in which the tool can extend into the single through hole can be limited, but through the arrangement of the through hole group, the tool can act on different positions in the barrel through the through holes while the barrel is ensured to have certain strength, the operable range is enlarged, and the drilling tool can work smoothly.

Optionally, the sets of through holes are distributed circumferentially of the barrel.

The technical scheme has the beneficial effects that: this further increases the above operability range and improves the working efficiency of the drilling tool.

The technical scheme provided by the application can achieve the following beneficial effects:

the drilling tool that this application embodiment provided, second helical blade's pitch is great, guarantee the disintegrating slag, especially the great disintegrating slag of particle diameter can get into smoothly, first helical blade's pitch is less, the space that is used for holding the disintegrating slag in the first helical blade is less, it is spacing to form more easily between the disintegrating slag and between disintegrating slag and the first helical blade, it is difficult for dropping to make the disintegrating slag, and the disintegrating slag that can hold in the first helical blade is less relatively, and then the whole gravity that receives of disintegrating slag is less, also be difficult for dropping relatively, the degree of difficulty that the disintegrating slag dropped from the barrel has been increased, the disintegrating slag volume that drops has been reduced, and then reduced the disintegrating slag and dropped the adverse effect that causes the achievement from the barrel.

Additional features of the present application and advantages thereof will be set forth in the description which follows, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It should be apparent that the drawings in the following description are embodiments of the present application and that other drawings may be derived from those drawings by a person of ordinary skill in the art without inventive step.

FIG. 1 is a schematic diagram of an internal structure of one embodiment of a drilling tool provided in an example of the present application;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Reference numerals:

1-a cylinder body; 2-a first helical blade;

3-a through hole; 4-a second helical blade;

5-port; 6-a disintegrating slag containing cavity;

7-a second end; 8-first end.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all 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 application.

In the description of the present application, 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. 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 application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 to 2, one aspect of the present application provides a drilling tool, which includes a cylinder 1, and a first helical blade 2 and a second helical blade 4 installed in the cylinder 1 and coaxially disposed with the cylinder 1, wherein one end of the cylinder 1 has a port 5 for crushed slag to enter the cylinder 1 in a first direction, the second helical blade 4 is located between the port 5 and the first helical blade 2 in the first direction, a pitch of the first helical blade 2 is smaller than a pitch of the second helical blade 4, and the first direction is an axial direction of the cylinder 1.

The drilling tool that this application embodiment provided, the pitch of second helical blade 4 is great, guarantee the disintegrating slag, especially the great disintegrating slag of particle diameter can get into smoothly, first helical blade 2's pitch is less, the space that is used for holding the disintegrating slag in the first helical blade 2 is less, it is spacing to form more easily between the disintegrating slag and between disintegrating slag and the first helical blade 2, it is difficult for dropping to make the disintegrating slag, and the disintegrating slag that can hold in the first helical blade 2 is less relatively, and then the whole gravity that receives of disintegrating slag is less, also be difficult for dropping relatively, the degree of difficulty that the disintegrating slag dropped from barrel 1 has been increased, the disintegrating slag volume of dropping has been reduced, and then reduced the disintegrating slag and dropped the adverse effect that causes the achievement from barrel 1.

Optionally, the first helical blade 2 has a first end 8 disposed adjacent the second helical blade 4, the second helical blade 4 has a second end 7 disposed adjacent the first helical blade 2, and the first end 8 is located between the second end 7 and the port 5 in the first direction. Thus, when the slag falls down from the first helical blade 2, the second end 7 can be used to block the slag, particularly crushed stone with a large particle size, thereby further reducing the amount of the slag falling from the cylinder 1.

Optionally, the first end 8 overlaps the second end 7 in the first direction. Therefore, in the drilling process, the crushed slag can be conveyed to the first helical blade 2 from the second helical blade 4 more smoothly, and the crushed slag collection process is smoother.

Optionally, the first helical blade 2 has a first end 8 disposed adjacent to the second helical blade 4, the first end 8 being of a resilient construction. This makes first end 8 can have certain deflection in the first direction, when gathering big particle size rubble, makes big particle size rubble also can send smoothly to first helical blade 2 to constantly move to the direction of keeping away from port 5 under the axial pressure effect that the disintegrating slag gave, big particle size rubble passes through first end 8 after, first end 8 resilience elastic deformation forms and blocks the disintegrating slag.

Optionally, a slag containing cavity 6 is formed in the cylinder 1, and the slag containing cavity 6 is located on a side of the first helical blade 2 facing away from the second helical blade 4 in the first direction. The slag containing cavity 6 is arranged, so that the capacity of the slag in the barrel 1 is increased, especially the containing space of large-particle-size crushed stones is increased, more slag can be collected by single drilling, and the working efficiency is improved.

Alternatively, the outer edge of the first helical blade 2 and the outer edge of the second helical blade 4 are both embedded in the inner wall of the cylinder 1. This increases the overall strength of the drill.

Optionally, a through-wall via 3 is formed in the wall of the cartridge 1. At the in-process that the disintegrating slag was gathered, the condition of rubble card in the helical blade can appear, through setting up above-mentioned through-hole 3, then can stretch into the disintegrating slag that blocks in barrel 1 with the help of the instrument with the instrument from through-hole 3, alleviates disintegrating slag jam condition in the barrel 1, makes disintegrating slag collection work more smooth and easy.

Optionally, the through holes 3 are stripe-shaped, and the through holes 3 extend in the first direction. This makes the instrument stretch into the through-hole 3 in the first direction has the operational scope of increase, and then just can act on different positions in barrel 1 through single through-hole 3, has improved work efficiency.

Optionally, the wall is formed with a set of through holes comprising at least two through holes 3 arranged in the first direction. In order to ensure the strength of the barrel body 1, the length of the single through hole 3 cannot be too large, so that the range of action of the tool extending into the single through hole 3 is limited, but through the arrangement of the through hole group, the tool can act on different positions in the barrel body 1 through the plurality of through holes 3 while the barrel body 1 is ensured to have certain strength, the operable range is enlarged, and the drilling tool can work smoothly.

Optionally, the sets of through holes are distributed in the circumferential direction of the cylinder 1. This further increases the above operability range and improves the working efficiency of the drilling tool.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The drilling tool is characterized by comprising a cylinder body (1), a first spiral blade (2) and a second spiral blade (4), wherein the first spiral blade (2) and the second spiral blade (4) are installed in the cylinder body (1) and are coaxially arranged with the cylinder body (1), one end of the cylinder body (1) is provided with a port (5) for crushed slag to enter the cylinder body (1), the second spiral blade (4) is located between the port (5) and the first spiral blade (2) in the first direction, the pitch of the first spiral blade (2) is smaller than that of the second spiral blade (4), and the first direction is the axial direction of the cylinder body (1).

2. The drilling tool according to claim 1, wherein the first helical blade (2) has a first end (8) arranged adjacent to the second helical blade (4), the second helical blade (4) having a second end (7) arranged adjacent to the first helical blade (2), the first end (8) being located between the second end (7) and the port (5) in the first direction.

3. The drilling tool according to claim 2, wherein the first end (8) and the second end (7) overlap in the first direction.

4. Drilling tool according to claim 2, wherein the first end (8) is of a resilient construction.

5. The drilling tool according to claim 4, characterized in that a slag receiving chamber (6) is formed in the cylinder (1), the slag receiving chamber (6) being located on a side of the first helical blade (2) facing away from the second helical blade (4) in the first direction.

6. Drilling tool according to claim 1, characterized in that the outer edge of the first helical blade (2) and the outer edge of the second helical blade (4) are embedded in the inner wall of the cylinder (1).

7. Drilling tool according to any of claims 1-6, characterized in that a through hole (3) is formed in the wall of the cylinder (1) through the wall.

8. Drilling tool according to claim 7, wherein the through hole (3) is strip-shaped, the through hole (3) extending in the first direction.

9. The drilling tool according to claim 7, wherein the wall is formed with a set of through holes comprising at least two of the through holes (3) aligned in the first direction.

10. The drilling tool according to claim 9, characterized in that the sets of through holes are distributed in the circumferential direction of the cylinder (1).