JPH067116Y2 - Underground pipeline crusher - Google Patents
Underground pipeline crusherInfo
- Publication number
- JPH067116Y2 JPH067116Y2 JP7445188U JP7445188U JPH067116Y2 JP H067116 Y2 JPH067116 Y2 JP H067116Y2 JP 7445188 U JP7445188 U JP 7445188U JP 7445188 U JP7445188 U JP 7445188U JP H067116 Y2 JPH067116 Y2 JP H067116Y2
- Authority
- JP
- Japan
- Prior art keywords
- reaction force
- wedge member
- expansion
- hydraulic cylinder
- taper surface
- 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.)
- Expired - Lifetime
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案はコンクリート製地中管路の破砕機、特に管路
の内部から外向きの応力を加えることによりこれを破砕
するようにした破砕機に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a crusher for a concrete underground pipe, and more particularly, a crusher for crushing the pipe by applying outward stress from the inside of the pipe. It is about.
地中管路は、所要長さのコンクリートブロツクに多数の
ケーブル挿通孔を設けたものであり、人孔と人孔の間に
おいて地中に埋設される。The underground pipe is a concrete block of a required length provided with a large number of cable insertion holes, and is buried in the ground between manholes.
このような既設の地中管路がある場合に、電力供給力の
増強のために人孔を割り込ませたり、都市機能の拡大に
伴う他の設備との重複等のために、地中管路の取りこわ
しが必要になることがある。If there is such an existing underground pipeline, the underground pipeline may be interrupted to increase the power supply capacity or due to duplication with other equipment accompanying the expansion of urban functions. It may be necessary to tear down.
このような場合、従来は活線状態のケーブルに損傷を与
えないよう配慮しながら、破砕のみとハンマーとによる
はつり作業により破砕する方法がとられていた。In such a case, conventionally, a method of crushing only by crushing and a crushing operation with a hammer while taking care not to damage the cable in a live state has been adopted.
しかし、従来の方法では、著しく非能率である問題があ
ると共に、相当の熟練を要する等の問題があった。However, the conventional methods have a problem that they are extremely inefficient and require considerable skill.
そこで、この考案はコンクリートが引張り応力に対して
強度が小さいことに着目し、管路内部から拡開方向に力
を加えることにより破砕するようにした破砕機を提供す
ることを目的とする。In view of this, the present invention focuses on the fact that concrete has low strength against tensile stress, and an object thereof is to provide a crusher capable of crushing by applying a force in the expansion direction from the inside of the pipeline.
前記の課題を解決するために、この考案は反力支持板１
に油圧シリンダー２を固定し、その油圧シリンダー２の
ピストンロッド３にその先端に至るほど接近する２つの
テーパ面４を有するくさび部材５を固定し、油圧シリン
ダー２の両側に配置した２本の反力伝達棒６の一端を反
力支持板１に取付け、各反力伝達棒６の他端にそれぞれ
拡開部材７を固定し、拡開部材７の対向内面にくさび部
材５のテーパ面４に合致する拡開用テーパ面８を形成
し、そのテーパ面８の先端に拡開方向に広がる段部９を
介してくさび部材５の落し込み用テーパ面１０を形成し
た構成としたものである。In order to solve the above problems, the present invention is directed to a reaction force support plate 1
The hydraulic cylinder 2 is fixed to the hydraulic cylinder 2, and the wedge member 5 having the two tapered surfaces 4 that approach the piston rod 3 of the hydraulic cylinder 2 toward the tip thereof is fixed. One end of the force transmission rod 6 is attached to the reaction force support plate 1, and the expansion member 7 is fixed to the other end of each reaction force transmission rod 6, and the tapered inner surface of the wedge member 5 is fixed to the inner surface of the expansion member 7. A matching expanding taper surface 8 is formed, and a recessed taper surface 10 of the wedge member 5 is formed at the tip of the taper surface 8 via a step portion 9 expanding in the expanding direction.
拡開部材７を管路のケーブル挿通孔内に挿入したのち、
油圧シリンダー２を作用させる。ピストンロッド３が伸
長すると、くさび部材５が両拡開部材７の拡開用テーパ
面８を押し拡げて前進する。そのため、拡開部材７はケ
ーブル挿通孔の径方向に拡開し、管路に対し引張り応力
を与え破砕に至らしめる。After inserting the expansion member 7 into the cable insertion hole of the pipeline,
Operate the hydraulic cylinder 2. When the piston rod 3 extends, the wedge member 5 pushes and expands the expanding taper surfaces 8 of both expanding members 7 and advances. Therefore, the expansion member 7 expands in the radial direction of the cable insertion hole, and gives tensile stress to the pipe line, leading to crushing.
更にくさび部材５が前進すると、段部９を越えて押し込
み用テーパ面１０に落ち込むため、拡開部材７は反力伝
達棒６の弾力により拡開前の状態に戻る。When the wedge member 5 further advances, the wedge member 5 goes over the step portion 9 and falls into the pushing tapered surface 10, so that the expansion member 7 returns to the state before the expansion due to the elastic force of the reaction force transmission rod 6.
第１図に示すように、この考案の実施例に係る破砕機
は、反力支持板１の片面に油圧シリンダー２を固定して
いる。反力支持板１は、第２図に示すように中心対称の
２個所に凹所１１を有する。油圧シリンダー２の両側に
２本の反力伝達棒６が配置される。各反力伝達棒６の一
端は、上記の各凹所１１に挿通され、その先端に袋ナッ
ト１２を嵌め抜け止めを図る。As shown in FIG. 1, the crusher according to the embodiment of the present invention has a hydraulic cylinder 2 fixed to one surface of a reaction force support plate 1. As shown in FIG. 2, the reaction force support plate 1 has recesses 11 at two centrally symmetrical positions. Two reaction force transmission rods 6 are arranged on both sides of the hydraulic cylinder 2. One end of each reaction force transmission rod 6 is inserted into each of the recesses 11 described above, and a cap nut 12 is fitted to the tip of the recess 11 to prevent it from coming off.
凹所１１は反力伝達棒６の直径よりも径方向に幾分長く
形成される。凹所１１の開放端は狭くなっており、反力
伝達棒６が外れないようになっている。反力伝達棒６の
位置、即ち反力支持板１の直径方向の位置は、凹所１１
の長さ範囲内で適宜定められる。The recess 11 is formed to be slightly longer than the diameter of the reaction force transmitting rod 6 in the radial direction. The open end of the recess 11 is narrow so that the reaction force transmission rod 6 cannot be removed. The position of the reaction force transmission rod 6, that is, the position of the reaction force support plate 1 in the diametrical direction is set at the recess 11
Is appropriately determined within the length range.
油圧シリンダー２のピストンロッド３の先端にくさび部
材５を固定する。くさび部材５は両側面にテーパ面４を
有する。これらのテーパ面４は先端に至るほど相互に接
近する傾斜を有する。The wedge member 5 is fixed to the tip of the piston rod 3 of the hydraulic cylinder 2. The wedge member 5 has tapered surfaces 4 on both side surfaces. These tapered surfaces 4 have slopes that approach each other toward the tip.
また、前記の各反力伝達棒６の先端には、それぞれ拡開
部材７が固定される。拡開部材７は、第３図に示すよう
に、くさび部材５を抱持するガイド溝１３を対向内面に
形成してある。そのガイド溝１３の底に、拡開用テーパ
面８と落し込み用テーパ面１０とを形成してある。拡開
用テーパ面８は反力伝達棒６側に形成され、くさび部材
５のテーパ面４と合致する。拡開用テーパ面８の先端
に、拡開方向に広がる段部９を設けている。段部９はく
さび部材５の最も幅の広い部分を受入れるに足りるよう
外方に広ろがっており、段部９から先端までが落し込み
用テーパ面１０になっている。落し込み用テーパ面１０
は、くさび部材５のテーパ面４に合致する。A spreading member 7 is fixed to the tip of each reaction force transmitting rod 6. As shown in FIG. 3, the expanding member 7 has a guide groove 13 for holding the wedge member 5 formed on the opposing inner surface thereof. On the bottom of the guide groove 13, an expanding taper surface 8 and a falling taper surface 10 are formed. The expanding taper surface 8 is formed on the reaction force transmitting rod 6 side and coincides with the taper surface 4 of the wedge member 5. A stepped portion 9 that spreads in the spreading direction is provided at the tip of the spreading taper surface 8. The step portion 9 is widened outward so that the widest portion of the wedge member 5 can be received, and a taper surface 10 for dropping is provided from the step portion 9 to the tip. Tapered surface for dropping 10
Conforms to the tapered surface 4 of the wedge member 5.
その他、図中１７は油圧供給ホース、１４はコンクリー
ト製管路、１５はコンクリート製パイプであり、その内
面がケーブル挿通孔１６になっている。In addition, in the figure, 17 is a hydraulic supply hose, 14 is a concrete pipe line, 15 is a concrete pipe, and the inner surface thereof is a cable insertion hole 16.
この考案の実施例は以上のごときものであり、次にその
使用方法について説明する。The embodiment of the present invention is as described above, and the method of using it will be described below.
まず、拡開部材７をケーブル挿通孔１６内に所要の間隙
を存して自由に挿入できるように、反力伝達棒６の凹所
１１における位置を設定する。拡開部材７をケーブル挿
通孔１６の適宜深さまで挿入し、反力支持板１に押し込
み方向の適宜な力を加えた状態で油圧シリンダー２に油
圧を供給すると、ピストンロッド３およびこれと一体の
くさび部材５が前進する。First, the position of the reaction force transmission rod 6 in the recess 11 is set so that the expansion member 7 can be freely inserted into the cable insertion hole 16 with a required gap. When the expansion member 7 is inserted to an appropriate depth of the cable insertion hole 16 and the hydraulic pressure is supplied to the hydraulic cylinder 2 with an appropriate force in the pushing direction applied to the reaction force support plate 1, the piston rod 3 and the integral body The wedge member 5 advances.
くさび部材５の前進によりそのテーパ面４が拡開用テー
パ面８に対しその傾斜角度に応じた力を外向きに作用さ
せ、拡開部材７をケーブル挿通孔１６の内壁に押し付
け、外向きの力を及ぼす。The forward movement of the wedge member 5 causes the taper surface 4 to exert an outward force on the expanding taper surface 8 according to the inclination angle thereof, so that the expanding member 7 is pressed against the inner wall of the cable insertion hole 16 so as to move outward. Exert force.
一方、ピストンロッド３の前進により油圧シリンダー２
には大きな反力が作用するが、その反力は、反力支持板
１及び反力伝達棒６を通じて、拡開部材７とケーブル挿
通孔１６と内壁との摩擦力により支持される。On the other hand, when the piston rod 3 advances, the hydraulic cylinder 2
A large reaction force acts on the reaction force, but the reaction force is supported by the friction force between the expansion member 7, the cable insertion hole 16, and the inner wall through the reaction force support plate 1 and the reaction force transmission rod 6.
ピストンロッド３及びこれと一体のくさび部材５の前進
量が一定以上に達すると、コンクリート製パイプ１５及
び管路１４に亀裂が発生し破砕に至る。When the amount of advance of the piston rod 3 and the wedge member 5 integrated with the piston rod 3 reaches a certain amount or more, a crack is generated in the concrete pipe 15 and the pipeline 14, and the concrete is crushed.
管路１４の破砕後、更にピストンロッド３と共にくさび
部材５を前進させると、くさび部材５は段部９を越えて
落し込み用テーパ面１０に落ち込む。そうすると、拡開
部材７が反力伝達棒６の弾性に拡開前の状態に戻り、ケ
ーブル挿通孔１６の内壁との間に間隙を生じる。そのた
め、破砕機全体をケーブル挿通孔１６から引き抜くこと
ができる。When the wedge member 5 is further advanced together with the piston rod 3 after the pipe line 14 is crushed, the wedge member 5 goes over the step portion 9 and falls into the falling taper surface 10. Then, the expansion member 7 returns to the state before the expansion due to the elasticity of the reaction force transmission rod 6, and a gap is formed between the expansion member 7 and the inner wall of the cable insertion hole 16. Therefore, the entire crusher can be pulled out from the cable insertion hole 16.
以上のように、この考案によれば、油圧シリンダーの作
動によりくさび部材を前進させることにより、拡開部材
を介してケーブル挿通孔の内面に強大な外向きの力を及
ぼすことができる。このため、コンクリート製地中管路
を容易かつ能率的に破砕することができる。As described above, according to the present invention, by advancing the wedge member by the operation of the hydraulic cylinder, a strong outward force can be exerted on the inner surface of the cable insertion hole via the expansion member. Therefore, the concrete underground pipe can be crushed easily and efficiently.
第１図は使用状態の断面図、第２図は反力支持板の一部
を示す正面図、第３図はくさび部材及び拡開部材の分解
斜視図、第４図は使用状態の斜視図である。 １……反力支持板、２……油圧シリンダー、 ３……ピストンロッド、４……テーパ面、 ５……くさび部材、６……反力伝達棒、 ７……拡開部材、８……拡開用テーパ面、 ９……段部、 １０……落し込み用テーパ面、 １１……凹所、１２……袋ナット。1 is a cross-sectional view of a used state, FIG. 2 is a front view showing a part of a reaction force support plate, FIG. 3 is an exploded perspective view of a wedge member and a spreading member, and FIG. 4 is a perspective view of a used state. Is. 1 ... Reaction force support plate, 2 ... Hydraulic cylinder, 3 ... Piston rod, 4 ... Tapered surface, 5 ... Wedge member, 6 ... Reaction force transmission rod, 7 ... Expansion member, 8 ... Expansion taper surface, 9 ... stepped portion, 10 ... drop-in taper surface, 11 ... recess, 12 ... cap nut.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 狩野 一胤 大阪府大阪市北区中之島３丁目３番22号 関西電力株式会社内 (72)考案者 吉田 正春 大阪府大阪市福島区海老江７丁目23―２ 新大阪電設株式会社内 (56)参考文献 特開 昭62−146395（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazutoshi Kano 3-3-22 Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture Kansai Electric Power Co., Inc. (72) Masaharu Yoshida 7-23, Ebie, Fukushima-ku, Osaka-shi, Osaka ―2 Within Shin-Osaka Denso Co., Ltd. (56) Reference JP-A-62-146395 (JP, A)
Claims (1)
し、その油圧シリンダー２のピストンロッド３にその先
端に至るほど接近する２つのテーパ面４を有するくさび
部材５を固定し、油圧シリンダー２の両側に配置した２
本の反力伝達棒６の一端を反力支持板１に取付け、各反
力伝達棒６の他端にそれぞれ拡開部材７を固定し、拡開
部材７の対向内面にくさび部材５のテーパ面４に合致す
る拡開用テーパ面８を形成し、そのテーパ面８の先端に
拡開方向に広がる段部９を介してくさび部材５の落し込
み用テーパ面１０を形成してなる地中管路破砕機。1. A hydraulic cylinder 2 is fixed to a reaction force support plate 1, and a wedge member 5 having two tapered surfaces 4 that are close to the tip of a piston rod 3 of the hydraulic cylinder 2 is fixed to the hydraulic cylinder. 2 placed on both sides of 2
One end of the reaction force transmission rod 6 is attached to the reaction force support plate 1, the expansion member 7 is fixed to the other end of each reaction force transmission rod 6, and the wedge member 5 is tapered on the inner surface facing the expansion member 7. Underground formed by forming a taper surface 8 for expansion that matches the surface 4 and forming a taper surface 10 for dropping the wedge member 5 at the tip of the taper surface 8 through a step 9 that expands in the expansion direction. Pipe crusher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7445188U JPH067116Y2 (en) | 1988-06-02 | 1988-06-02 | Underground pipeline crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7445188U JPH067116Y2 (en) | 1988-06-02 | 1988-06-02 | Underground pipeline crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01176193U JPH01176193U (en) | 1989-12-15 |
| JPH067116Y2 true JPH067116Y2 (en) | 1994-02-23 |
Family
ID=31299562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7445188U Expired - Lifetime JPH067116Y2 (en) | 1988-06-02 | 1988-06-02 | Underground pipeline crusher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067116Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4662812B2 (en) * | 2005-06-06 | 2011-03-30 | 積水化学工業株式会社 | Equipment for crushing existing pipe metal fittings |
-
1988
- 1988-06-02 JP JP7445188U patent/JPH067116Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01176193U (en) | 1989-12-15 |
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