CN2471919Y

CN2471919Y - Impact drill

Info

Publication number: CN2471919Y
Application number: CN 01214064
Authority: CN
Inventors: 张忠新
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-05
Filing date: 2001-02-05
Publication date: 2002-01-16
Anticipated expiration: 2011-02-05

Abstract

The utility model relates to an impact drill used in geologic investigation and engineering geologic drilling, which is composed of a drill bit, a drill pipe, and a core penetrating type lift hammer, wherein the drill bit is connected with the lower part of the drill pipe through a catcher, and the core penetrating type lift hammer does vertical motion on the upper part of the drill pipe along the drill pipe and generates impact force. The utility model has simple structure and convenient function. The drill bit can also be replaced, and is taken off and replaced with a contacting probe of N10 stage when the mechanics test of the foundation soil is carried out. The applicability range of the impact drill is wide.

Description

Churn drill

The utility model relates to a kind of Churn drill that is used for geological survey and engineering geological drilling.

Existing luoyang spade, shovel head are the open front formula, and its operation is to do whole piston type motion under the drive of wood handle, can only be used for soft soil layer, and is invalid for old clay and the following soil layer of phreatic surface, and can not be used for the exploration of foundation.

The purpose of this utility model is the defective that exists at above-mentioned prior art, and a kind of simple in structure, easy to operate, Churn drill that the scope of application is extensive is provided.

The purpose of this utility model be achieved in that the utility model Churn drill by drill bit (adopting heart letter), drilling rod, vertically-displacable lift the hammer form, drill bit (adopting heart tube) is connected with the drilling rod lower end by catcher, vertically-displacable is lifted hammer and is moved up and down with the upper edge drilling rod at catcher, produces impact force.

Connect drill bit and drilling rod, the catcher of drilling rod and drilling rod has horizontal driving hole.This catcher works by the steel bar spanner, makes it assembly and disassembly.

Vertically-displacable is lifted handle is housed on the hammer, by manually-operated, makes it to move up and down along drilling rod.Pallet is equipped with in the upper end of catcher, so as to the protection catcher, makes it not to be damaged.

The activities of creeping into is: vertically-displacable is lifted hammer (6Kg), unclamp after mentioning, this hammer is the movement of falling object along drilling rod, forms impact force, and Churn drill integral body is crept into downwards.Promptly rotate drill body after putting in place, twist off the native heart, and propose the aperture, lay down the native heart, again drill bit is arrived down at the bottom of the hole, repeat same operation with the cutter or the shovel of special use.

Creep into when being applicable to, seal short tube before drill bit adopts and adopt heart tube than hardpan.

Creep into when being applicable to than weak soil layer and the soil layer below the phreatic surface, drill bit adopts the two openings in both sides factually, and one-sided single radial cut to the long tube that does not have side openning is adopted heart tube.

When being applicable to the mechanical test of foundation soil, laying down drill bit, and change it into N ₁₀The contact probe of level; The vertically-displacable of 6.0kg is lifted the plus-minus hammer that hammer adds 4Kg, makes it to meet international standards---10Kg, again with the requirement of standard operate, record, so as to obtaining the standard value of bearing capacity of foundation soil.

The utility model is by drill bit, and drilling rod, vertically-displacable are lifted hammer and formed, and be simple in structure, easy to operate, and can replace drill bit and make that the Churn drill scope of application is extensive, efficient is high, function is complete.Especially with the heavy engineering boring mechanic when supporting advantage more outstanding.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 the utility model structural front view

Seal short tube before Fig. 2 the utility model and adopt heart tube front view

Seal short tube before Fig. 3 the utility model and adopt heart tube vertical view

The two opening long tubes in Fig. 4 the utility model both sides are adopted heart tube front view

The two opening long tubes in Fig. 5 the utility model both sides are adopted heart tube lateral view

Fig. 6 the utility model is made foundation soil mechanical test schematic diagram

Drill bit 1 top is a bar 6, and drill bit 1 bottom is sealed short tube before being and adopted heart tube 5.

When being applicable to when creeping into than hardpan, drill bit 1 adopts and seals short tube before drill bit 1 bottom and adopt heart tube 5 and be connected with drilling rod 2 by the catcher 4 with horizontal driving hole 7, drilling rod 2 tops are fixed with a catcher 10, take over fixedly pallet 11 of 10 upper ends, mentioning punching by handle 12 lifts hammer 3 do the movement of falling object on the drilling rod 2 of catcher more than 10, form impact force, Churn drill is crept into.

When being applicable to when creeping into than weak soil layer and the soil layer below the phreatic surface, drill bit 1 adopts the two openings in both sides or one-sided single radial cut or the astomous heart tube 5 of adopting factually, be connected with drilling rod 2 by catcher 4 with horizontal driving hole 7, drilling rod 2 tops are fixed with a catcher 10, take over fixedly pallet 11 of 10 upper ends, mention vertically-displacable by handle 12 and lift hammer 3 do the movement of falling object on the drilling rod 2 of catcher 10 or more, the formation impact force is crept into Churn drill.

Claims

1, a kind of Churn drill, it is lifted hammer (3) by drill bit (1), drilling rod (2), vertically-displacable and forms, it is characterized in that: drill bit (1) is connected with drilling rod (2) by catcher (4), drill bit (1) top is a bar (6), drill bit (1) bottom is sealed short tube before being and is adopted heart tube (5), short tube is adopted heart tube (5) and is connected with drilling rod (2) by the catcher (4) with horizontal driving hole (7), and drilling rod (2) top is fixed with a catcher (10), and catcher (10) upper end is pallet (11) fixedly.

2, according to the described Churn drill of claim 1, it is characterized in that: drill bit (1) adopts the two openings in both sides or one-sided single radial cut or the astomous heart tube (5) of adopting, and is connected with drilling rod (2) by the catcher (4) with horizontal driving hole (7).

3, according to the described Churn drill of claim 1, it is characterized in that: drill bit (1) and adopt heart tube (5) and change N into ₁₀Level contact probe, vertically-displacable are lifted hammer (3) and are added that 4kg adds and subtracts the mechanical test that hammer (13) is made foundation soil.

4, according to the described Churn drill of claim 1, it is characterized in that: fixedly pallet (11) is mentioned punching by handle (12) and is lifted hammer (3) do the movement of falling object on the drilling rod (2) of catcher more than (10).