JPH0527193U - Rock drill fixing device - Google Patents

Rock drill fixing device

Info

Publication number
JPH0527193U
JPH0527193U JP8164991U JP8164991U JPH0527193U JP H0527193 U JPH0527193 U JP H0527193U JP 8164991 U JP8164991 U JP 8164991U JP 8164991 U JP8164991 U JP 8164991U JP H0527193 U JPH0527193 U JP H0527193U
Authority
JP
Japan
Prior art keywords
rock
rotary blade
fixing device
tip
bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8164991U
Other languages
Japanese (ja)
Other versions
JP2543964Y2 (en
Inventor
喬 岡田
成郎 北原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kumagai Gumi Co Ltd
Original Assignee
Kumagai Gumi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP8164991U priority Critical patent/JP2543964Y2/en
Publication of JPH0527193U publication Critical patent/JPH0527193U/en
Application granted granted Critical
Publication of JP2543964Y2 publication Critical patent/JP2543964Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)

Abstract

(57)【要約】 【目的】 削岩機の横滑りを防止して、岩盤へ強固に固
定する。 【構成】 削孔時には、回転刃14の先端部を岩盤に押
し付けた後、回転刃14を回転させて削岩する。このと
き、回転刃14にはドリフタのような衝撃がなく、同刃
14と接触した部分から切削する機構のため岩盤に対す
る食いつきが良く、ずれが少ない。回転刃14が岩盤に
十分食い込んだところで、その回転を停止し、固定操作
を完了する。前記固定操作の後、ビット1による岩盤の
削孔を行う。
(57) [Summary] [Purpose] To prevent the rock drill from skidding and to firmly secure it to the rock mass. [Structure] At the time of drilling, the tip of the rotary blade 14 is pressed against the rock mass, and then the rotary blade 14 is rotated to drill rock. At this time, the rotary blade 14 does not have an impact like a drifter, and the mechanism that cuts from the portion in contact with the rotary blade 14 has a good bite to the rock bed and a small deviation. When the rotary blade 14 has sufficiently cut into the rock, the rotation is stopped and the fixing operation is completed. After the fixing operation, the rock is drilled with the bit 1.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、削孔時において削岩機を岩盤に固定するための装置に関するもので ある。 The present invention relates to a device for fixing a rock drill to a rock mass during drilling.

【0002】[0002]

【従来の技術】[Prior Art]

トンネルや鉱山などにおいて、爆薬によって地山を破砕して掘削する場合には 、予め岩盤に火薬を装填するための発破孔を穿孔するのであるが、この発破孔の 削孔には削岩機が用いられている。 例えば、代表的な削岩機の一種であるドリフタは、直線状のガイドシェルの後 部に固定されており、このドリフタの打撃力ないし回転力をドリフタに直結した ロッドを経て先端部のビットに伝えて、岩盤を破砕、穿孔するものである。 上記削岩機により削孔するときには、前記ビットが穿孔位置からずれないよう に、ガイドシェルの先端部に突起物やゴム製滑り止めを取り付けるという工夫が なされている。 When digging ground with explosives in a tunnel or mine, a blast hole for loading explosive into the bedrock is drilled in advance, and a rock drill is used to drill this blast hole. It is used. For example, a drifter, which is one of the typical rock drills, is fixed to the rear part of a linear guide shell, and the striking force or rotational force of this drifter is applied to a bit at the tip part via a rod directly connected to the drifter. This is to crush and drill the rock. At the time of drilling with the rock drilling machine, a protrusion or a rubber slip stopper is attached to the tip of the guide shell so that the bit is not displaced from the drilling position.

【0003】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら、前記したように、削岩機は打撃力と回転力により穿孔するもの であるから、打撃時の一瞬において、ビット先端部は岩盤から離間してしまう。 また、岩盤表面は必ずしも平坦ではなく、寧ろ、傾斜や凹凸を有していることの 方が多い。 従って、前記ガイドシェルの先端部に設けられた突起物やゴム製滑り止めでは 、削岩機を完全に固定することは困難であった。 本考案の目的は、削孔時において削岩機を岩盤に完全に固定することのできる 装置を提供することにある。 However, as described above, since the rock drilling machine pierces by the impacting force and the rotating force, the tip end of the bit is separated from the bedrock at the moment of impact. In addition, the rock surface is not always flat, but rather has slopes and irregularities. Therefore, it was difficult to completely fix the rock drill by using the protrusions or the rubber anti-slip provided at the tip of the guide shell. An object of the present invention is to provide a device capable of completely fixing a rock drilling machine to rock mass during drilling.

【0004】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

上記目的を達成するために、本考案に係る削岩機の固定装置は、ロッドの先端 部に固定したビットの打撃力ないし回転力により削孔する削岩機の、前記ロッド を回転中心軸として、円筒形の回転刃を前記ビットの近傍に設けることによって 課題を解決したものである。 In order to achieve the above-mentioned object, the rock drill fixing device according to the present invention uses the rod as a central axis of rotation of a rock drill that is drilled by the impact force or rotational force of a bit fixed at the tip of the rod. The problem is solved by providing a cylindrical rotary blade near the bit.

【0005】[0005]

【作用】[Action]

回転刃の先端部を岩盤に押し付けて該回転刃を回転させ、回転力により削岩す る。回転刃が岩盤に十分食い込んだところで、固定操作を終了し、その後、ビッ トによる岩盤の削孔を行う。 The tip of the rotary blade is pressed against the bedrock to rotate the rotary blade, and rock is rocked by the rotational force. When the rotary blade has sufficiently cut into the bedrock, the fixing operation is completed, and then the bedrock is drilled with a bit.

【0006】[0006]

【実施例】【Example】

以下、本考案の好適な実施例を図面を参照しながら説明する。 図1は削岩機の固定装置の斜視図であり、先端部にビット1を固定した削岩機 のロッド2が、直線状のガイドシェル3に沿って設けられている。ロッド2の後 部には図示を省略したドリフタが接続されている。 ガイドシェル3の先端部に、固定装置10を設ける。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a fixing device of a rock drilling machine, in which a rod 2 of the rock drilling machine having a bit 1 fixed at its tip is provided along a linear guide shell 3. A not-shown drifter is connected to the rear portion of the rod 2. The fixing device 10 is provided at the tip of the guide shell 3.

【0007】 固定装置10は、断面図(図2)に示すように、モータ11を収容した箱形の モータボックス12をガイドシェル3の先端部に取付け、同ボックス12はベア リング13を介して円筒形の回転刃14を回転自在に支持している。 回転刃14の軸心線にロッド2を配設し、回転刃14の径は前部(刃先側)を 後部より大きく形成する。 回転刃14の先端部の形状としては、一般にボーリングコア採取用のビット形 状のものが適当であり、図3に示すように、鋸刃状のもの(同図(1))、直線 刃状のもの(同図(2))等、種々の形状のものが使用できる。なお、符号15 は、削孔の際クリコを排出するために、回転刃14の側壁に穿った穴であり、符 号16は、回転刃14の後部プーリーとモータ11間に掛けた駆動ベルトである 。駆動ベルト16に代えてギアにより動力伝達してもよい。 更に、モータボックス12の後端面とガイドシェル3の先端部との間に、圧縮 コイルスプリング17を介装し、同ボックス12を前方に押圧付勢する。As shown in the sectional view (FIG. 2), the fixing device 10 has a box-shaped motor box 12 accommodating a motor 11 attached to the tip of the guide shell 3, and the box 12 is provided with a bear ring 13 between them. A cylindrical rotary blade 14 is rotatably supported. The rod 2 is arranged on the axis of the rotary blade 14, and the diameter of the rotary blade 14 is formed such that the front portion (blade tip side) is larger than the rear portion. As the shape of the tip of the rotary blade 14, generally, a bit shape for collecting a boring core is suitable, and as shown in FIG. 3, a saw blade shape (the same figure (1)), a straight blade shape. Various shapes such as the one shown in FIG. 2 (2) can be used. Reference numeral 15 is a hole formed in the side wall of the rotary blade 14 in order to discharge the clicos during drilling, and reference numeral 16 is a drive belt hung between the rear pulley of the rotary blade 14 and the motor 11. is there . Instead of the drive belt 16, gears may be used for power transmission. Further, a compression coil spring 17 is interposed between the rear end surface of the motor box 12 and the front end portion of the guide shell 3 to urge the box 12 forward.

【0008】 前記固定装置10を具えた削岩機を用いて岩盤を削孔するには、先ず、回転刃 14の先端部を岩盤に押し付けた後、モータ11を駆動させ回転刃14を回転さ せて削岩する。このとき、回転刃14にはドリフタのような衝撃がなく、同刃1 4と接触した部分から切削する機構のため岩盤に対する食いつきが良く、ずれが 少ない。回転刃14が岩盤に十分食い込んだところで、その回転を停止し、固定 操作を完了する。 岩盤に対する回転刃14の先端部の押圧力は、圧縮コイルスプリング17によ り調整される。 前記固定操作の後、ビット1による岩盤の削孔を行う。In order to drill a rock using a rock drill equipped with the fixing device 10, first, the tip of the rotary blade 14 is pressed against the rock, and then the motor 11 is driven to rotate the rotary blade 14. Let it rock. At this time, the rotary blade 14 does not have an impact like a drifter, and the mechanism that cuts from the portion in contact with the blade 14 has a good bite to the rock bed and a small deviation. When the rotary blade 14 has sufficiently cut into the bedrock, the rotation is stopped and the fixing operation is completed. The pressing force of the tip of the rotary blade 14 against the bedrock is adjusted by the compression coil spring 17. After the fixing operation, the rock is drilled with the bit 1.

【0009】[0009]

【考案の効果】[Effect of the device]

本考案に係る削岩機の固定装置は、削孔位置に直近した周囲の岩盤を、ドリフ タとは別に設けた衝撃の少ない回転力のみでリング状に切削し、食い込んだ円筒 形の回転刃をそのままアンカーとすることにより、削岩機の先端部を固定するも のであるから、削岩機の横滑りを防止して、岩盤へ強固に固定するという効果を 有する。 The fixing device of the rock drilling machine according to the present invention is a cylindrical rotary blade that cuts the surrounding rock mass near the drilling position into a ring shape only by a rotary force with little impact provided separately from the drifter. Since the tip of the rock drill is fixed by using the anchor as it is, it has the effect of preventing the rock drill from skidding and firmly fixing it to the rock.

【図面の簡単な説明】[Brief description of drawings]

【図1】削岩機の固定装置を示す斜視図である。FIG. 1 is a perspective view showing a fixing device of a rock drilling machine.

【図2】図1の固定装置を縦断して示した側面図であ
る。
FIG. 2 is a side view showing the fixing device of FIG. 1 in a longitudinal section.

【図3】回転刃の一部分を省略して示した側面図であ
る。
FIG. 3 is a side view showing a rotary blade with a part thereof omitted.

【符号の説明】[Explanation of symbols]

1 ビット 2 ロッド 3 ガイドシェル 10 固定装置 11 モータ 12 モータボックス 14 回転刃 1 bit 2 rod 3 guide shell 10 fixing device 11 motor 12 motor box 14 rotary blade

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 ロッドの先端部に固定したビットの打撃
力ないし回転力により削孔する削岩機の固定装置であっ
て、前記ロッドを回転中心軸として、円筒形の回転刃を
前記ビットの近傍に設けてなる削岩機の固定装置。
1. A fixing device for a rock drilling machine, which drills holes by a striking force or a rotating force of a bit fixed to a tip of a rod, wherein a cylindrical rotary blade is used as a central axis of rotation of the bit. A rock drill fixing device that is installed in the vicinity.
JP8164991U 1991-09-12 1991-09-12 Rock drill fixing device Expired - Lifetime JP2543964Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8164991U JP2543964Y2 (en) 1991-09-12 1991-09-12 Rock drill fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8164991U JP2543964Y2 (en) 1991-09-12 1991-09-12 Rock drill fixing device

Publications (2)

Publication Number Publication Date
JPH0527193U true JPH0527193U (en) 1993-04-09
JP2543964Y2 JP2543964Y2 (en) 1997-08-13

Family

ID=13752189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8164991U Expired - Lifetime JP2543964Y2 (en) 1991-09-12 1991-09-12 Rock drill fixing device

Country Status (1)

Country Link
JP (1) JP2543964Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150104247A (en) * 2014-03-04 2015-09-15 (주)서동 Drilling device for blasting core center-cut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150104247A (en) * 2014-03-04 2015-09-15 (주)서동 Drilling device for blasting core center-cut

Also Published As

Publication number Publication date
JP2543964Y2 (en) 1997-08-13

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Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 19970128

EXPY Cancellation because of completion of term