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Drilling tool

A drilling tool and helical blade technology, which is applied in the field of construction machinery, can solve problems such as falling gravel, and achieve the effects of increasing the overall strength, increasing the operability range, and increasing the operability range

Pending Publication Date: 2019-12-10
BEIJING SANY INTELLIGENT MFG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a drilling tool for the problem that gravel often falls from the barrel drill during the lifting process of the barrel drill

Method used

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Embodiment Construction

[0035] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a spec...

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PUM

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Abstract

The invention relates to the technical field of engineering machinery, and particularly relates to a drilling tool. The drilling tool comprises a barrel body, a first spiral blade and a second spiralblade which are arranged in the cylinder body and are coaxially arranged with the cylinder body, wherein in the first direction, one end of the cylinder body is provided with a port for broken residues to enter the cylinder body, in the first direction, the second spiral blade is located between the port and the first spiral blade, the screw pitch of the first spiral blade is smaller than the screw pitch of the second spiral blade, and the first direction is the axial direction of the cylinder body. The purpose of the application is to provide a drilling tool which aims at solving the problemthat in the lifting process of a barrel drill in the prior art, gravels often fall from the barrel drill.

Description

technical field [0001] The present application relates to the technical field of construction machinery, in particular, to a drilling tool. Background technique [0002] The barrel drill is mostly used to collect soil or gravel, which generally includes an external barrel, a helical blade installed inside the barrel, and a drill tooth installed at the bottom of the barrel. During the drilling process of the barrel drill, debris will gradually enter In the gap between the spiral blade and the barrel, after the drilling is completed, the barrel drill is lifted up and the debris is taken out to complete the collection. However, during the process of lifting the barrel drill, gravel often falls from the barrel drill, which adversely affects the work results. Contents of the invention [0003] The purpose of this application is to provide a drilling tool for the problem that gravel often falls from the barrel drill during the lifting process of the barrel drill. [0004] In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B27/04
CPCE21B27/04
Inventor 张剑锋王龙刚王德健
Owner BEIJING SANY INTELLIGENT MFG TECH CO LTD
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