CN-115698461-B - Multidirectional drilling block

CN115698461BCN 115698461 BCN115698461 BCN 115698461BCN-115698461-B

Abstract

The present invention provides a technique for simultaneously excavating a pile in an excavating direction and a hole wall direction, or an excavating direction and a pile core direction, or all of these directions with respect to an excavating surface. The present invention provides a multi-directional drilling block 1 mounted on a drill bit, comprising a base 2 having a tip protruding in the axial direction of the drill bit, and leg portions 3 and 4 continuous with the base, wherein the base is composed of a planar portion 2a continuous with the leg portions, 1 st inclined portions 2b to 2d inclined from the planar portion to the axial tip side of the drill bit, left and right side surface portions 2e, 2f continuous with the 1 st inclined portion, and 2 nd inclined portion 2g inclined from the 1 st inclined portion to the axial withdrawal side of the drill bit, the 1 st inclined portion, the side surface portions, and the 2 nd inclined portion are provided with 1 st cemented carbide, and 2 nd cemented carbide tips protruding in the direction perpendicular to the left and right side surface portions are provided from one of the left and right side surface portions to the 1 st inclined portion.

Inventors

Shi Zhonggangsi

Assignees

金属工具有限公司

Dates

Publication Date: 20260508
Application Date: 20211004
Priority Date: 20201013

Claims (4)

1. A multi-directional drill block, the multi-directional drill block being a multi-directional drill block mounted to a drill bit, the multi-directional drill block comprising: having a base with a front end projecting axially towards the drill bit, and A leg portion continuous with the base portion, The base portion is composed of a planar portion continuous with the leg portion, a first inclined portion inclined from the planar portion toward an axial front end side of the drill, a left side portion continuous with a left side of the first inclined portion, a right side portion continuous with a right side of the first inclined portion, and a second inclined portion inclined from the first inclined portion toward an axial leg side of the drill, The first inclined portion and the second inclined portion are provided with a first cemented carbide tip, and a second cemented carbide tip protruding in a direction perpendicular to the left and right side surface portions is provided from one of the left and right side surface portions to the first inclined portion, Wherein the first inclined portion includes a plurality of inclined portions inclined from the planar portion toward the front end side, The plurality of inclined portions are continuous in the circumferential direction of the multi-directional drilling block, and The second cemented carbide tip is disposed on the plurality of inclined portions.
2. The multi-directional drilling block according to claim 1, wherein the second cemented carbide tip is configured by a plurality of cemented carbide tips arranged at predetermined intervals in parallel with the axial direction of the drill bit.
3. The multi-directional drilling block of claim 1, wherein the multi-directional drilling block is configured to provide a plurality of multi-directional drilling, The first cemented carbide tip is disposed on the front end side of the first inclined portion, and The second cemented carbide tip is disposed between the first cemented carbide tip and the planar portion.
4. The multi-directional drilling block of claim 1, wherein the multi-directional drilling block is configured to provide a plurality of multi-directional drilling, The first carbide tip is configured to protrude in an axial direction of the drill block.

Description

Multidirectional drilling block Technical Field The present invention relates to a multi-directional drilling block for drilling in multiple directions simultaneously on a digging surface. Background In a conventional pile driving construction method for performing pile driver construction using, for example, a pile driver, a drill bit is connected to a driving mechanism for excavating a foundation hole of a building or for excavating a hole forming a continuous underground wall or the like at the earth surface, and a bit at the front end of the drill bit is provided with a blade for excavating. This is basically the same as the in-steel pipe construction method and the like. For example, patent document 1 discloses a detachable earth boring bit whose digging blade is composed of a center tip and side tips on both sides, and a digging head applies a pack welding. In such a detachable earth-boring bit, the central tip forms a wedge-shaped blade that protrudes in a curved manner relative to the side tips. The excavating blade employs a blade having a self-growing blade function in which a cutting edge portion is detached and a new cutting edge portion is regenerated according to an excavating action, and a rod-shaped tip made of cemented carbide is embedded in a cutting edge body of the excavating blade. The prior art comprises the following steps: patent document 1 Japanese patent laid-open No. 22-339680. Disclosure of Invention Problems to be solved by the invention Patent document 1 discloses only an earth-boring bit drill with an improved detachable structure. The drill block for the drill bit is installed on the outer plate or the inner plate or on both sides of the outer plate and the inner plate of the sleeve, and the excavating direction and the hole wall direction, or the excavating direction and the pile core direction, or all directions thereof can be simultaneously excavated, so the device is blank in the prior art. As such, there is no device installed outside the wing of the excavating blade in the prior art and simultaneously excavating in the excavating direction and the hole wall direction. In view of the above problems, an object of the present invention is to provide a technique of excavating in an excavating direction and a hole wall direction, or an excavating direction and a pile core direction, or all of these directions simultaneously with respect to an excavating surface. Means for solving the problems In order to solve the above-described problems, a multi-directional drilling block according to the 1 st aspect of the present invention is a drilling block mounted on a drill bit, including a base portion having a front end protruding in an axial direction of the drill bit, and a 1 st cemented carbide tip protruding in a direction of excavation and a 2 nd cemented carbide tip protruding in a direction of a hole wall or a pile core being provided at the front end of the base portion. According to the invention, the multi-directional drilling block according to the 2 nd aspect is a drilling block mounted on a drill bit, comprising a base portion having a tip protruding in an axial direction of the drill bit and a leg portion continuous with the base portion, wherein the base portion comprises a planar portion continuous with the leg portion, a1 st inclined portion inclined from the planar portion to an axial direction of the drill bit toward the tip side, a2 nd inclined portion inclined from the 1 st inclined portion to an axial direction of the drill bit toward the leg portion side, and a2 nd cemented carbide tip is disposed in the 1 st inclined portion, the side portion, and the 2 nd inclined portion, and the 2 nd cemented carbide protruding in a direction perpendicular to the left and right side portions is disposed from one of the left and right side portions to the 1 st inclined portion. In the 2 nd aspect, the 2 nd cemented carbide tip may be configured by a plurality of cemented carbide tips at predetermined intervals in parallel with the axial direction of the drill bit. Effects of the invention According to the present invention, a technique of excavating an excavation surface in an excavation direction and a hole wall direction, or an excavation direction and a pile core direction, or all of these directions simultaneously can be provided. Drawings Fig. 1 is a structural view of a multi-directional drilling block according to embodiment 1 of the present invention. Fig. 2 is a structural view of a multi-directional drilling block according to embodiment 2 of the present invention. Fig. 3 is a structural view of a multi-directional drilling block according to embodiment 3 of the present invention. Fig. 4 is a schematic view showing a mounting manner of the multi-directional drilling block. Fig. 5 is a schematic view showing a mounting manner of the multi-directional drilling block. [ Symbolic description ] 1. The multi-directional drilling block 2, base 2a, flat 2b, 2c, 2d, incli