CN216195061U - Column cavity type drill rod - Google Patents
Column cavity type drill rod Download PDFInfo
- Publication number
- CN216195061U CN216195061U CN202122694442.9U CN202122694442U CN216195061U CN 216195061 U CN216195061 U CN 216195061U CN 202122694442 U CN202122694442 U CN 202122694442U CN 216195061 U CN216195061 U CN 216195061U
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- drill rod
- cylindrical cavity
- stone
- rod body
- notch
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Abstract
The utility model relates to mining equipment, in particular to a cylindrical cavity type drill rod, which comprises a drill rod body, and is different from the prior art in that a cylindrical cavity is axially arranged at the end part of the drill rod body, and a notch which penetrates through the side wall of the drill rod body and is communicated with the cylindrical cavity is radially arranged at the end part of the drill rod body. Compared with the prior art, the drill rod changes the structure of the traditional drill rod, so that the end part of the drill rod body is not in point contact with the stone but in surface contact with the stone, the contact area is larger, the stone is not easy to roll, the stone can be easily driven into the stone, the notch is gradually reduced along with the downward movement of the drill rod, the stone in the cylindrical cavity is crushed and discharged from the notch, and the working efficiency is improved.
Description
Technical Field
The utility model relates to mining equipment, in particular to a cylindrical cavity type drill rod.
Background
The hydraulic breaking hammer drives a piston to reciprocate by taking a hydraulic pump as a power source, hydraulic oil as a medium and hydraulic oil static pressure as power, the piston impacts a drill rod at high speed during stroke, and the drill rod breaks ore, concrete and other solids. The device can more effectively clean floating stones and soil in rock gaps in the process of excavating a building foundation. However, the existing hydraulic breaking hammer still has some defects: as shown in fig. 1, the end of the existing cavity-type drill rod is generally tapered into a drill tip 11, which theoretically facilitates driving into stone and concrete, but in practice, when the tip presses against the broken stone, the stone rolls along with the drill rod, and the efficiency is not high.
Disclosure of Invention
The utility model discloses a cylindrical cavity type drill rod to overcome one of the prior technical defects, which comprises a drill rod body.
Further, the width of the slot and/or the diameter of the cylindrical cavity taper inwardly from the end. So that the crushed stone entering the cylindrical cavity and the notch is gradually crushed and discharged.
Further, the diameter of the cylindrical cavity is one third of the diameter of the drill rod body. The strength of the drill rod body is ensured.
Further, the width of the notch is one third of the diameter of the cylindrical cavity. The strength of the drill tip is ensured.
Further, the depth of the cylindrical cavity is less than or equal to the length of the notch. The broken stone blocks entering the cylindrical cavity are ensured not to be retained.
Compared with the prior art, the drill rod changes the structure of the traditional drill rod, so that the end part of the drill rod body is not in point contact with the stone but in surface contact with the stone, the contact area is larger, the stone is not easy to roll, the stone can be easily driven into the stone, the notch is gradually reduced along with the downward movement of the drill rod, the stone in the cylindrical cavity is crushed and discharged from the notch, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a conventional cylinder bore type drill rod.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is an M-direction view of fig. 2.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used 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, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. A cylindrical cavity type drill rod comprises a drill rod body 1, wherein a cylindrical cavity 12 is axially formed in the end portion of the drill rod body, and a notch 13 which penetrates through the side wall of the drill rod body and is communicated with the cylindrical cavity 12 is radially formed in the end portion of the drill rod body. The width B of the slot 13 and/or the diameter a of the cylindrical cavity 12 taper inwardly from the end. The diameter a of the cylindrical cavity 12 is one third of the shank body diameter C. The width B of the slot 13 is one third of the diameter a of the cylindrical cavity 12. The depth of the cylindrical cavity 12 is less than or equal to the length of the notch 13.
The utility model changes the structure of the traditional drill rod, so that the end part of the drill rod body is not in point contact with the stone but in surface contact with the stone, the contact area is larger, the stone is not easy to roll, the stone can be easily driven into the stone, the notch is gradually reduced along with the downward movement of the drill rod, the stone in the cylindrical cavity is crushed and discharged from the notch, and the working efficiency is increased.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art can make many possible variations or modifications to the utility model using the methods and techniques disclosed above, or to modify equivalent embodiments without departing from the scope of the utility model. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.
Claims (5)
1. A cylindrical cavity type drill rod comprises a drill rod body (1) and is characterized in that a cylindrical cavity (12) is axially formed in the end portion of the drill rod body, and a notch (13) which penetrates through the side wall of the drill rod body and is communicated with the cylindrical cavity (12) is radially formed in the end portion of the drill rod body.
2. A cylinder bore type shank according to claim 1, characterized in that: the width (B) of the slot (13) and/or the diameter (A) of the cylindrical cavity (12) tapers inwardly from the end.
3. A cylinder bore type shank according to claim 1, characterized in that: the diameter (A) of the cylindrical cavity (12) is one third of the diameter (C) of the drill rod body.
4. A cylinder bore type shank according to claim 1, characterized in that: the width (B) of the notch (13) is one third of the diameter (A) of the cylindrical cavity (12).
5. A cylinder bore type shank according to claim 1, characterized in that: the depth of the cylindrical cavity (12) is less than or equal to the length of the notch (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122694442.9U CN216195061U (en) | 2021-11-05 | 2021-11-05 | Column cavity type drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122694442.9U CN216195061U (en) | 2021-11-05 | 2021-11-05 | Column cavity type drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216195061U true CN216195061U (en) | 2022-04-05 |
Family
ID=80903443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122694442.9U Active CN216195061U (en) | 2021-11-05 | 2021-11-05 | Column cavity type drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216195061U (en) |
-
2021
- 2021-11-05 CN CN202122694442.9U patent/CN216195061U/en active Active
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| GR01 | Patent grant |