JPS61257593A - Crusher for base rock, etc. - Google Patents
Crusher for base rock, etc.Info
- Publication number
- JPS61257593A JPS61257593A JP9843485A JP9843485A JPS61257593A JP S61257593 A JPS61257593 A JP S61257593A JP 9843485 A JP9843485 A JP 9843485A JP 9843485 A JP9843485 A JP 9843485A JP S61257593 A JPS61257593 A JP S61257593A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- stopper
- expandable body
- rock
- metal rod
- 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
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は岩盤或いはコンクリート等に穿った孔に挿入し
て岩盤やコンクリート等を破砕する装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for crushing rock, concrete, etc. by inserting it into a hole drilled in rock, concrete, etc.
（従来技術とその問題点）
従来から、岩石破砕の最も一般的な工法としては発破工
法があるが、この工法によれば、騒音、振動が発生して
間通地域の環境に悪影響を与え、その上、粉塵が発生す
るために坑内作業環境を悪化する原因となっている。こ
のため、騒音や振動及び粉塵の発生の少ない静的岩石破
砕工法が求められている。(Prior art and its problems) Traditionally, the most common method for rock crushing has been the blasting method, but this method generates noise and vibration, which has a negative impact on the environment in the Matori area. Furthermore, dust is generated, which causes deterioration of the underground working environment. Therefore, there is a need for a static rock crushing method that generates less noise, vibration, and dust.
このような工法として、最近、セメント系充填剤を岩石
に穿ワた孔内に充填し、その化学反応によって充填剤を
膨張させることにより、その膨張圧で岩石を静的に破砕
することが行われにようになったが、しかしながら、こ
の工法ではセメント系充填剤の反応時間が長くて作業能
率が悪（、その上、経済的にも高価なものになる等の欠
点がある。Recently, as a construction method of this kind, a cement-based filler is filled into a hole drilled in the rock, and the filler is expanded by a chemical reaction, and the rock is statically crushed by the expansion pressure. However, this construction method has drawbacks such as poor work efficiency (and, in addition, it is economically expensive) due to the long reaction time of the cement-based filler.
又、岩石に穿設した孔に模を入れて破砕する方法も行わ
れているが、岩の一部分的な破砕や小断面の岩石の破砕
は可能であっても発破工法に近い大量の岩の発破には時
間がかかりすぎて不適当であり、施工期間が大幅に必要
となって結果的にはコスト高となる。さらに、岩の強度
によっては破砕できない場合が生じるという問題点があ
る。There is also a method of crushing by inserting a pattern into a hole drilled in the rock, but although it is possible to crush a part of the rock or a small section of rock, it is difficult to crush a large amount of rock, which is similar to the blasting method. Blasting is unsuitable because it takes too long, and the construction period is significantly increased, resulting in high costs. Furthermore, there is a problem that depending on the strength of the rock, it may not be possible to crush it.
（発明の目的）
本発明はこのような問題点に鑑みてなされたもので、岩
盤等に穿設した孔内に筒状膨脹体を挿入し、該筒状膨脹
体を外径方向に膨張させてその膨張圧により騒音や振動
を発生させることなく良好な作業環境の下で岩盤等の破
砕を行うことのできる装置を提供するものである。(Object of the Invention) The present invention has been made in view of the above problems, and involves inserting a cylindrical expandable body into a hole drilled in a rock, etc., and expanding the cylindrical expandable body in the outer radial direction. The purpose of the present invention is to provide a device that can crush rock, etc. in a good working environment without generating noise or vibration due to the expansion pressure.
（発明の構成）
上記目的を達成するために、本発明における岩盤等の破
砕装置は、金属棒体に筒状膨脹体を外嵌させると共に金
属棒体の一端に固定したストッパーと他端に摺動自在に
設けた可動ストッパーとを前記筒状膨脹体の両端面に挟
接させ、可動ストッパーを固定ストッパー側に移動させ
ることにより筒状膨脹体を外周方に膨張させるように構
成したことを特徴とするものである。(Structure of the Invention) In order to achieve the above object, the device for crushing rock, etc. of the present invention has a cylindrical expandable body fitted onto a metal rod, and a stopper fixed to one end of the metal rod and a slider attached to the other end. A movable stopper provided so as to be movable is sandwiched between both end surfaces of the cylindrical expandable body, and the cylindrical expandable body is expanded toward the outer circumference by moving the movable stopper toward the fixed stopper. That is.
（実施例の説明）
本発明の実施例を図面について説明すると、（１）は鋼
棒材よりなる金属棒体で、その一端に大径の頭部（２）
を一体に設けてあり、他端部外部には他端から適宜長さ
部分に螺子（３）を刻設しである。(Description of Embodiments) To explain the embodiments of the present invention with reference to the drawings, (1) is a metal bar made of steel bar material, and a large diameter head (2) is attached to one end of the metal bar.
are integrally provided, and a screw (3) is carved on the outside of the other end at an appropriate length from the other end.
（４）は円筒形状の膨脹体で、天然ゴム或いはウレタン
等の非圧縮性弾性材料よりなるものであり、その両端面
は円錐形状面に形成しである。(4) is a cylindrical inflatable body made of an incompressible elastic material such as natural rubber or urethane, and both end surfaces thereof are formed into conical shapes.
この円筒状膨脹体（４）を前記金属棒体（１）に外嵌さ
せてその内周面を金属棒体（１）の外周に密接させ、円
筒状膨脹体（４）の両端から突出した金属棒体（１）の
両端部に固定ストッパー（５）と可動ストッパー（６）
を遊嵌させてこれらのストッパー（５） （６１が円筒
状膨脹体（４）の両端面に挟接させである。This cylindrical expandable body (4) was fitted onto the metal rod (1) so that its inner peripheral surface was brought into close contact with the outer periphery of the metal rod (1), and the cylindrical expandable body (4) was protruded from both ends of the metal rod (4). A fixed stopper (5) and a movable stopper (6) are installed at both ends of the metal rod (1).
These stoppers (5) (61) are loosely fitted and sandwiched between both end surfaces of the cylindrical expansion body (4).
これらのストッパー（５） （６）は、中央に金属棒体
（１）に対する挿嵌孔を有する硬質樹脂製弾性ワッシャ
５ａ、６ａと金属製の円形平ワツシヤ５ｂ、６ｂとより
構成され、硬質樹脂製弾性ワッシャ５ａ、６ａには、円
筒状膨脹体（４）の端面を受止する面に円錐形状の凹部
（７）を形成して該凹部（７）を円筒状膨脹体（４）の
両端円錐形状面に夫々当接させてあり、他方の面を平ワ
ッシャ５ｂ、 ６ｂに重ね合わせである。These stoppers (5) (6) are composed of elastic washers 5a, 6a made of hard resin and circular flat washers 5b, 6b made of metal. The elastic washers 5a and 6a have a conical recess (7) formed on the surface that receives the end face of the cylindrical expandable body (4), and the recess (7) is inserted into both ends of the cylindrical expandable body (4). The conical surfaces are brought into contact with each other, and the other surface is superimposed on flat washers 5b and 6b.
即ち、金属棒体（１）には、その一端側から金属製平ワ
ツシヤ５ｂ、円形弾性ワッシャ５ａ、円筒状膨脹体（４
）、円形弾性ワッシャ６ａ、金厘製平ワッシャ６ｂが順
次挿嵌されてあり、固定ストッパー（５）の平ワツシヤ
５ｈは金属棒体（１）の大径頭部（２）の内面に受止さ
れである。That is, a metal flat washer 5b, a circular elastic washer 5a, and a cylindrical expansion body (4) are attached to the metal rod (1) from one end thereof.
), a circular elastic washer 6a, and a flat washer 6b made by Kanrin are inserted in order, and the flat washer 5h of the fixed stopper (5) is received on the inner surface of the large diameter head (2) of the metal rod (1). It is.
なお、ストッパー（５） （６）の外径は円筒状膨脹体
（４）の外径と同等ないしはやや大径に形成しである。The outer diameters of the stoppers (5) and (6) are set to be equal to or slightly larger than the outer diameter of the cylindrical expansion body (4).
（８）は金属棒体（１）の外径よりもやや大なる内径を
有し、且つストッパー（６）の外径よりも小なる外径に
形成された円筒形の押圧部材で、金属棒体（１）の他端
部に摺動自在に被嵌してその内端面を可動ストッパー（
６）に当接させてあり、この外端面に可動座金（９）を
介して金属棒体（１）の螺子部（３）に螺合したナツト
αωに接合しである。(8) is a cylindrical pressing member having an inner diameter slightly larger than the outer diameter of the metal rod (1) and smaller than the outer diameter of the stopper (6); It is slidably fitted onto the other end of the body (1) and a movable stopper (
6), and this outer end surface is joined to a nut αω screwed into the threaded portion (3) of the metal rod (1) via a movable washer (9).
１１は金属棒体（１）の螺子部（３）の端部に形成した
断面四角形の回り止めである。Reference numeral 11 denotes a detent with a rectangular cross section formed at the end of the threaded portion (3) of the metal rod (1).
（作 用）
このように構成した岩石等の破砕装置の使用例を説明す
ると、まず、破砕すべき岩盤（ａ）にドリルによって破
砕装置よりもやや大径の円形孔（ｂ）を穿設する。(Function) To explain an example of the use of a device for crushing rocks, etc. configured as described above, first, a circular hole (b) with a diameter slightly larger than that of the crushing device is bored in the rock to be crushed (a) using a drill. .
次に、破砕装置を円形孔山）内に挿入したのち、回り止
め１１を適宜な手段により保持して金属棒体（１）を回
転不能に固定し、この状態でナラ）ＱＯ）を螺進させる
と、可動座金（９）から押圧部材（８）を介して可動ス
トッパー（６）が固定ストッパー（５）側に移動し、円
筒状膨脹体（４）を圧縮する。この円筒状弾性体（４）
の一端側は固定ストッパー（５）を介して金属棒体（１
）の大径頭部（２）に受止されており、又、円筒状弾性
膨脹体（４）は非圧縮性材料よりなるので、ナツトαω
の螺進により圧縮された体積に略等しい体積だけ圧縮方
向と直角方向である外周方に膨張する。Next, after inserting the crushing device into the circular hole, the detent 11 is held by an appropriate means to fix the metal rod (1) so that it cannot rotate, and in this state, the oak (QO) is screwed. When the movable stopper (6) is moved from the movable washer (9) to the fixed stopper (5) via the pressing member (8), the cylindrical expansion body (4) is compressed. This cylindrical elastic body (4)
One end of the metal rod (1) is connected via a fixed stopper (5).
) is received in the large-diameter head (2) of the nut αω.
It expands toward the outer periphery in a direction perpendicular to the compression direction by a volume approximately equal to the volume compressed by the spiral movement.
こうして膨張する円筒状膨脹体（４）の外周面が岩盤（
ａｌに穿設した円形孔（ｂ）の内周面に密接したのちさ
らに円筒状膨脹体（４）を圧縮させると、その圧縮量に
応じた膨張力が円筒状膨脹体（４）の内部に蓄積され、
その膨張力が岩盤（ａｌの孔（ｂ）の周方向の引張耐力
以上になると岩盤（ａｌにクラックが生じて岩盤（ａ）
は破砕されるのである。この時、円筒状膨脹体（４）の
両端部は両ストッパー（５） （６）の外周面を越えて
円形孔（′ｂ）との隙間１２へも膨張しようとするが、
両ストッパー（５） （６）の弾性ワッシャ５ａ、６ａ
は、膨脹体（４）の端部受止面を凹部（７）に形成して
いるので、膨脹体（４）の膨張力によりその外周縁が外
方に拡大変形して円形孔（ｂ）の内周面に当接し、該円
形孔山）との隙間１２を閉塞する。従って、膨脹体（４
）は弾性ワッシャ５ａ、６ａから隙間１２側に膨出する
ことなくその圧縮力を岩盤（ａｌの破壊力に有効に置換
できるものである。The outer circumferential surface of the cylindrical expandable body (4) that expands in this way is covered with rock (
When the cylindrical expandable body (4) is further compressed after coming into close contact with the inner circumferential surface of the circular hole (b) bored in the al, an expansion force corresponding to the amount of compression is applied to the inside of the cylindrical expandable body (4). accumulated,
When the expansion force exceeds the tensile strength in the circumferential direction of the hole (b) in the rock (al), cracks occur in the rock (al) and the rock (a)
is crushed. At this time, both ends of the cylindrical expandable body (4) try to expand beyond the outer peripheral surfaces of both stoppers (5) and (6) into the gap 12 with the circular hole ('b).
Elastic washers 5a and 6a of both stoppers (5) and (6)
Since the end receiving surface of the inflatable body (4) is formed in the recess (7), the outer peripheral edge expands and deforms outward due to the expansion force of the inflatable body (4), forming the circular hole (b). and closes the gap 12 with the circular hole. Therefore, the inflatable body (4
) can effectively replace the compressive force of the elastic washers 5a, 6a with the destructive force of rock (al) without bulging toward the gap 12 side.
なお、上記実施例においては、膨脹体（４）の圧縮をナ
ツトαωの締め付けによって行っているが、第３図に示
すように、金属棒体（１）の他端にセンターホールジヤ
ツキ１３を装着し、ナツトαωや可動座金（９）を使用
することなく該センターホールジヤツキ１３の可動筒部
先端を可動ストッパー（６）に押接させてこのジヤツキ
の作動により膨脹体（４）を圧縮してもよく、この場合
、岩盤（ａ）をより迅速に破砕することができる。In the above embodiment, the expansion body (4) is compressed by tightening the nut αω, but as shown in FIG. The tip of the movable cylindrical portion of the center hole jack 13 is pressed against the movable stopper (6) without using the nut αω or the movable washer (9), and the expansion body (4) is compressed by the action of this jack. In this case, the rock mass (a) can be crushed more quickly.
又、第４図に示すように、円筒状弾性膨脹体（４）の肉
厚部を中空内部１４に形成して該内部１４に軟質の樹脂
製弾性体１５或いは液体を封入してお（と、膨脹体（４
）への圧縮力を膨張力に効率的に変換することができる
。Further, as shown in FIG. 4, the thick part of the cylindrical elastic expandable body (4) is formed in a hollow interior 14, and a soft resin elastic body 15 or liquid is sealed in the interior 14. , expanded body (4
) can be efficiently converted into expansion force.
（発明の効果）
以上のように、本発明における岩盤等の破砕装置によれ
ば、筒状膨脹体はその両端面を金属棒体に装着したスト
ッパーにより長手方向の膨張を拘束されて岩盤やコンク
リート等に穿設した孔の断面方向のみに膨張するので、
可動ストッパーを介して押圧される圧縮力により該膨脹
体の外周面積に比例した大きな圧力を岩盤等に付与して
岩盤等を容易に破砕することができ、しかも、金属棒体
に外嵌した筒状膨脹体の一端は固定ストッパーにより受
止され、他端は可動ストッパーにより押圧されてこの可
動ストッパーのみを軸方向に移動させるだけで該筒状膨
脹体を容易に圧縮膨張させることができるので、構造が
極めて簡単にして安価に製作できるばかりでなく、破砕
作業が迅速に行えると共に騒音や振動が発生することな
く作業環境を良好にし得るものであり、さらに、この破
砕装置は何度も使用できるから、破砕作業を能率よく経
済的に行えるものである。(Effects of the Invention) As described above, according to the rock crushing device of the present invention, the expansion of the cylindrical body in the longitudinal direction is restrained by the stoppers attached to the metal rod on both ends of the cylindrical expandable body, and the rock mass or concrete is crushed. Since it expands only in the cross-sectional direction of the hole drilled in the
The compressive force applied through the movable stopper applies a large pressure proportional to the outer circumferential area of the inflatable body to the rock mass, etc., thereby easily crushing the rock mass. One end of the cylindrical inflatable body is received by a fixed stopper, and the other end is pressed by a movable stopper, and the cylindrical inflatable body can be easily compressed and expanded by simply moving this movable stopper in the axial direction. Not only is the structure extremely simple and can be manufactured at low cost, the crushing work can be done quickly and the work environment can be improved without generating noise or vibration.Furthermore, this crushing device can be used many times. Therefore, crushing work can be carried out efficiently and economically.
図面は本発明の実施例を示すもので、第１図は縦断側面
図、第２図は第１図Ａ−Ａ線における断面図、第３図は
センターホールジヤツキを押圧部材として使用した場合
の要部の側面図、第４図は円筒状弾性膨脹体の他の実施
例を示す縦断側面図である。
（１）・・・金属棒体、（４）・・・筒状膨脹体、（５
）・・・固定ストッパー、（６）・・・可動ストッパー
、（７）・・・凹部、αω・・・ナツト、１３・・・セ
ンターホールジヤツキ。The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal side view, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a case where a center hole jack is used as a pressing member. FIG. 4 is a longitudinal sectional side view showing another embodiment of the cylindrical elastic expandable body. (1)... Metal rod body, (4)... Cylindrical expansion body, (5
)...fixed stopper, (6)...movable stopper, (7)...recess, αω...nut, 13...center hole jack.
Claims (3)
棒体の一端に固定したストッパーと他端に摺動自在に設
けた可動ストッパーとを前記筒状膨脹体の両端面に挟接
させ、可動ストッパーを固定ストッパー側に移動させる
ことにより筒状膨脹体を外周方に膨脹させるように構成
したことを特徴とする岩盤等の破砕装置。(1) A cylindrical expandable body is fitted onto a metal rod, and a stopper fixed to one end of the metal rod and a movable stopper slidably provided at the other end are sandwiched between both end faces of the cylindrical expandable body. 1. A device for crushing rock, etc., characterized in that the cylindrical expandable body is expanded toward the outer periphery by bringing the movable stopper into contact with the fixed stopper and moving the movable stopper toward the fixed stopper.
受止部を円錐形状の凹部に形成してなる樹脂製ワッシャ
とより構成したことを特徴とする特許請求の範囲第１項
記載の岩盤等の破砕装置。(2) The stopper is constituted by a metal flat washer and a resin washer formed by forming the end face receiving portion of the cylindrical expansion body into a conical recess. Equipment for crushing rock, etc.
て該中空内部に軟質製の樹脂材又は適宜の液体を封入し
ていることを特徴とする特許請求の範囲第１項記載の岩
盤等の破砕装置。(3) Claim 1, characterized in that the cylindrical expandable body is formed into a hollow hard resin expandable body, and a soft resin material or a suitable liquid is sealed inside the hollow interior. Equipment for crushing rock, etc. as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9843485A JPS61257593A (en) | 1985-05-09 | 1985-05-09 | Crusher for base rock, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9843485A JPS61257593A (en) | 1985-05-09 | 1985-05-09 | Crusher for base rock, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61257593A true JPS61257593A (en) | 1986-11-15 |
| JPH039996B2 JPH039996B2 (en) | 1991-02-12 |
Family
ID=14219688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9843485A Granted JPS61257593A (en) | 1985-05-09 | 1985-05-09 | Crusher for base rock, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61257593A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS471501U (en) * | 1971-01-08 | 1972-08-17 | ||
| JPS5841189A (en) * | 1981-06-04 | 1983-03-10 | 鹿島建設株式会社 | Method and tool for cleaving rock |
-
1985
- 1985-05-09 JP JP9843485A patent/JPS61257593A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS471501U (en) * | 1971-01-08 | 1972-08-17 | ||
| JPS5841189A (en) * | 1981-06-04 | 1983-03-10 | 鹿島建設株式会社 | Method and tool for cleaving rock |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039996B2 (en) | 1991-02-12 |
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