JPS632556Y2 - - Google Patents
Info
- Publication number
- JPS632556Y2 JPS632556Y2 JP2504483U JP2504483U JPS632556Y2 JP S632556 Y2 JPS632556 Y2 JP S632556Y2 JP 2504483 U JP2504483 U JP 2504483U JP 2504483 U JP2504483 U JP 2504483U JP S632556 Y2 JPS632556 Y2 JP S632556Y2
- Authority
- JP
- Japan
- Prior art keywords
- rock
- crushing rod
- rock crushing
- crushing
- crushed
- 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
Links
- 239000011435 rock Substances 0.000 claims description 92
- 230000007423 decrease Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Description
【考案の詳細な説明】
本考案は砕岩棒、特に航路の作成、岩壁の築造
工事等において海底の岩石を砕掘するために用い
る砕岩棒に関する。[Detailed Description of the Invention] The present invention relates to a rock crushing rod, and particularly to a rock crushing rod used for crushing rocks on the ocean floor in the creation of a sea route, the construction of rock walls, and the like.
海底の岩石、特に硬質の岩石を砕掘するための
砕岩棒として、従来より第１図に示すものが知ら
れている。 As a rock crushing rod for crushing rocks on the seabed, especially hard rocks, the one shown in FIG. 1 has been known.
すなわち先端に破砕刃２１を設けた砕岩棒２０
を、クレーン船のクレーン等により吊り上げ、次
いで砕掘すべき海底の岩石２２の上方でその張力
を一挙に開放して砕岩棒２０を落下させて砕岩
し、このような操作を繰り返すことにより砕岩作
業を行なうようにしたものである。 That is, a rock crushing rod 20 with a crushing blade 21 at the tip.
is hoisted by a crane of a crane ship, then the tension is released all at once above the rock 22 on the seabed to be crushed, and the rock crushing rod 20 is dropped to crush the rock. By repeating this operation, the rock crushing work is carried out. It was designed to do this.
しかしながらこのような砕岩棒２０を用いた砕
岩作業にあつては、海底の岩石２２を砕岩棒２０
の落下による衝撃力で恰もたたき割るようにした
ものであり、その衝撃力で砕かれた岩石２３自体
の位置変動は殆ど生じず、したがつて砕岩棒２０
による砕岩作業中にも砕かれた岩石２３の存在の
ため砕岩能率が低下するとともに、水深の測量も
不可能となつて作業能率の著しい低下を招来して
いた。 However, in the case of rock crushing work using such a rock crushing rod 20, the rock 22 on the seabed is crushed by the rock crushing rod 20.
The rock 23 itself is broken by the impact force caused by the falling rock, and the position of the rock 23 itself hardly changes due to the impact force.
During rock crushing work, the presence of crushed rocks 23 lowers rock crushing efficiency, and it also becomes impossible to measure water depth, resulting in a significant drop in work efficiency.
例えば、花崗岩（圧縮強度800Kg／cm2程度のも
の）を、25トンの砕岩棒により砕岩した場合に
は、その砕岩棒を５回程度落下させることにより
厚さ１ｍの岩盤を破砕することが可能であるが、
１ｍ以上の深さに砕岩しようとしても、すでに砕
かれている岩石２３が邪魔してそれ以上の深さの
砕岩は不可能である。 For example, if granite (with a compressive strength of about 800 kg/cm 2 ) is crushed with a 25-ton rock crushing rod, it is possible to crush 1 meter thick rock by dropping the rock crushing rod about 5 times. In Although,
Even if an attempt is made to crush the rock to a depth of 1 m or more, the rock 23 that has already been crushed will interfere, making it impossible to crush the rock to a deeper depth.
さらに、このような砕岩棒２０は、その使用に
伴なつて破砕刃２１が破損したり、砕岩棒２０自
体に亀裂が生じるためその補修が必要となるが、
数十トン程度の重量を有することから、その運搬
に多大の費用と労力を要するとともに、砕岩棒２
０自体の材質がマンガン、ニツケルクローム、モ
リブデン等の金属であるため、完全なる補修をす
るためには大規模な工場で熱処理と焼鈍をしなけ
ればならず、修理費用が砕岩棒２０自体の製作費
用の半分以上にも達し、極めて経済性に劣る欠点
があつた。 Furthermore, with use of such a rock crushing rod 20, the crushing blade 21 may be damaged or cracks may occur in the rock crushing rod 20 itself, which requires repair.
Since it weighs approximately several tens of tons, it requires a great deal of cost and effort to transport, and the rock crushing rod 2
Since the material of the rock crushing rod 20 itself is metal such as manganese, nickel chrome, and molybdenum, in order to completely repair it, heat treatment and annealing must be carried out at a large-scale factory, and the repair cost is increased by the production of the rock crushing rod 20 itself. It had the disadvantage of being extremely uneconomical, costing more than half of the cost.
本考案は上述したような従来の砕岩棒２０の欠
点を解消し、海底における岩石の砕岩に際し、破
砕直後の岩石を砕岩棒自体の打降に伴なつて生じ
る水圧力を利用して一定間隔を隔てた位置まで移
動させ、砕岩箇所と既に砕れた岩石の置き場所と
を分離させることができ、数ｍの岩厚まで容易に
砕岩が可能でありかつ補修作業も簡略化し得る砕
岩棒の提供を目的とするものである。 The present invention solves the drawbacks of the conventional rock crushing rod 20 as described above, and when crushing rocks on the seabed, it uses the water pressure generated as the rock crushing rod itself descends to crush the rock immediately after crushing at regular intervals. To provide a rock crushing rod that can be moved to a separate position to separate a rock crushing point from a place where crushed rocks are placed, can easily crush rock up to several meters thick, and can simplify repair work. The purpose is to
以下に本考案の一実施例を第２図乃至第６図を
参照して説明する。 An embodiment of the present invention will be described below with reference to FIGS. 2 to 6.
図中１は砕岩棒であり、該砕岩棒１は横段面の
形状が四角形となる砕岩棒本体２と、側面形状が
略Ｖ字状の破砕刃３とから構成している。 In the figure, reference numeral 1 denotes a rock crushing rod, and the rock crushing rod 1 is composed of a rock crushing rod main body 2 whose lateral steps have a rectangular shape, and a crushing blade 3 whose side surface is approximately V-shaped.
砕岩棒本体２は上端部２ａに吊り上げ用の受部
４を設けている。該受部４は上端部２ａの内部に
弧状のワイヤー挿通孔４ａを穿設することにより
構成している。尚ワイヤー挿通孔４ａのほか、上
端部２ａに滑車を取り付けすることによつても受
部４となすことができる。 The rock crushing rod main body 2 is provided with a receiving part 4 for lifting at the upper end part 2a. The receiving portion 4 is constructed by drilling an arcuate wire insertion hole 4a inside the upper end portion 2a. In addition to the wire insertion hole 4a, the receiving portion 4 can also be formed by attaching a pulley to the upper end portion 2a.
砕岩棒本体２の下側部２ｂ側に位置させて、膨
出基部５を設けている。 A bulging base 5 is provided at the lower side 2b of the rock crushing rod body 2.
該膨出基部５は、砕岩棒本体２の前後面及び左
右両側面をそれぞれ外方に膨出させ、その横断面
形状を略四角形状となしている。 The bulging base 5 bulges outward from the front and rear surfaces and both left and right sides of the rock crushing bar body 2, and has a substantially square cross-sectional shape.
膨出基部５の左右両側面から砕岩棒本体２の下
端部２ｃに向けて漸次その間隔が狭幅となる滑ら
かな変形面６ａ，６ｂを形成している。 Smooth deformed surfaces 6a and 6b are formed with the interval gradually narrowing from both left and right sides of the bulging base 5 toward the lower end 2c of the rock crushing rod body 2.
変形面６ａ，６ｂの側面形状は、ともに膨出基
部５側が大で下側部２ｃ側が小となる略台形状の
曲面となしている。 The side shapes of the deformed surfaces 6a and 6b are both substantially trapezoidal curved surfaces that are larger on the bulging base 5 side and smaller on the lower side 2c side.
一方膨出基部５の表裏両面から下端部２ｃに向
けて水圧流発生部７，７を形成している。 On the other hand, hydraulic flow generating portions 7, 7 are formed from both the front and back surfaces of the bulging base portion 5 toward the lower end portion 2c.
水圧流発生部７，７は、膨出基部５から下端部
２ｃに至るにしたがい砕岩棒本体２の肉厚まで漸
減する曲面８，８を中央部に備え、その両側面
８，８の両側部に位置させて、前記変形面６ａ，
６ｂの端縁に連なる側縁部９ａ，９ｂを形成する
ことにより構成している。すなわち曲面８，８は
その両側をそれぞれ側縁部９ａ，９ｂにより囲ま
れ、膨出基部５の表裏両面において湾曲した凹部
を形成している。 The hydraulic flow generating parts 7, 7 are provided with curved surfaces 8, 8 in the center that gradually decrease to the wall thickness of the rock crushing rod main body 2 from the bulging base 5 to the lower end 2c, and on both sides of the curved surfaces 8, 8. The deformed surface 6a,
It is constituted by forming side edge portions 9a, 9b that are continuous with the edge of 6b. That is, the curved surfaces 8, 8 are surrounded on both sides by side edges 9a, 9b, respectively, and form curved recesses on both the front and back surfaces of the bulging base 5.
砕岩棒本体２の下端面には、表面から裏面に向
けて貫通させた係合部１０を形成している。 An engaging portion 10 is formed on the lower end surface of the rock crushing rod body 2 and penetrates from the front surface to the back surface.
前記破砕刃３は、砕岩棒本体２の下端面に連接
して配置され、その上端面から突出させた係合突
部１１を前記係合部１０に係合させるとともに、
両者の接合面を溶接により溶着し、相互に一体的
に連結している。 The crushing blade 3 is disposed in connection with the lower end surface of the rock crushing bar body 2, and engages the engaging protrusion 11 protruding from the upper end surface with the engaging portion 10,
The joint surfaces of both are welded together and integrally connected to each other.
破砕刃３の側面形状を第３図に示すように略Ｖ
字状に形成している。 The side shape of the crushing blade 3 is approximately V as shown in FIG.
It is formed into a letter shape.
次に上述の構成からなる砕岩棒１の作用を説明
する。 Next, the action of the rock crushing rod 1 having the above-described configuration will be explained.
第５図に示すようにクレーン船のクレーンによ
り砕岩棒本体１を吊り上げ、砕岩すべき海底の岩
石１２の上方から砕岩棒本体１を落下させる。 As shown in FIG. 5, the rock crushing rod body 1 is lifted up by a crane of a crane ship, and the rock crushing rod body 1 is dropped from above the rock 12 on the seabed to be crushed.
その落下に伴なう破砕刃３の衝撃力により岩石
１２は砕かれ、小塊化して破砕岩１３となる。 The rock 12 is crushed by the impact force of the crushing blade 3 accompanying the fall, and becomes small pieces of crushed rock 13.
一方砕岩棒本体１の落下に伴い、破砕岩１３は
前記水圧流発生部７の曲面８と海底との間に生じ
る水圧流により第５図に矢印で示すように砕岩棒
本体１から一定間隔離れた位置まで移動せしめら
れる。 On the other hand, as the rock crushing rod main body 1 falls, the crushed rock 13 is separated from the rock crushing rod main body 1 by a certain distance as shown by the arrow in FIG. be moved to a new position.
その移動させることができる距離は岩石１２の
比重、砕岩棒本体１の重量等により異なるが、本
願考案者の実験によれば、約20tの砕岩棒本体１
を比重1000〜1100（Kg／m3）程度の岩石１２に落
下させた場合約10ｍ程度移動させることができ
た。 The distance that it can be moved varies depending on the specific gravity of the rock 12, the weight of the rock crushing rod body 1, etc., but according to experiments by the inventor of the present application, the rock crushing rod body 1 weighs about 20 tons.
When dropped onto a rock 12 with a specific gravity of about 1000 to 1100 (Kg/m 3 ), it could be moved about 10 meters.
このように砕岩棒本体１の打降作業により、砕
岩した破砕岩１３を打降地点から離れた位置まで
水圧流により移動させるものであり、特に砕岩棒
本体１の表裏両面に曲面８，８を形成し、その曲
面８，８を側縁部９ａ，９ｂよりそれぞれ囲つた
ものであるから、打降作業に伴なつて打降箇所の
周辺には強力な前後方向の水圧流が生じ、破砕岩
１３を打降箇所から一定の位置まで移動せしめる
ものである。 In this way, by the work of demolishing the rock crushing bar body 1, the crushed rock 13 is moved by hydraulic flow to a position away from the demolishing point. Since the curved surfaces 8 and 8 are surrounded by the side edges 9a and 9b, a strong hydraulic flow is generated in the front and back direction around the downhill part during the downhill work, and the crushed rock is 13 from the landing point to a certain position.
移動せしめられた破砕岩１０は、順次海底に積
み置きされた状態となり、後に浚渫作業により除
去される。 The moved crushed rocks 10 are sequentially piled up on the seabed and are later removed by dredging.
尚、砕岩棒本体１の打降に伴ない、前記台形状
の変形面６ａ，６ｂと海底との間にも第６図に矢
印で示すような水圧流が生じるが、この水圧流は
砕岩棒本体１の下側部側方において渦巻状となつ
て破砕岩１３に揚力を付与し、水圧流発生部７に
よる破砕岩１３の移動を助長せしめるよう作用す
る。 Incidentally, as the rock-breaking rod main body 1 descends, a hydraulic flow as shown by the arrow in FIG. It forms a spiral on the side of the lower side of the main body 1 and acts to apply lifting force to the crushed rock 13, thereby promoting the movement of the crushed rock 13 by the hydraulic flow generating section 7.
砕岩棒本体１の打降作業を継続すると、破砕刃
３にヒビ割れ、破損が生じるが、この場合には砕
岩棒本体１と破砕刃３との溶接箇所を加熱して分
離させ、新たな破砕刃３を溶接により取り付けす
るだけで再び打降作業に用いることができるもの
である。 If the work of demolishing the rock crushing rod body 1 continues, the crushing blade 3 will crack and break, but in this case, the welded part between the rock crushing rod body 1 and the crushing blade 3 will be heated and separated, and a new crushing By simply attaching the blade 3 by welding, it can be used again for uphill work.
以上の説明から明らかなように本考案に係る砕
岩棒は砕岩棒本体の下側部に位置させて、左右両
側面には漸次狭幅となる変形面を、表裏両面には
水圧流発生部を設けてなるものであるから、岩盤
に対する打降作業に伴なつて砕岩棒本体の表裏両
面から外方へ強力な水圧流が生じ、破砕岩を打降
箇所から離れた位置まで移動させ積み置きするこ
とができるものである。したがつて打降箇所の周
辺には破砕岩が残存せず、砕岩の厚さを順次深く
していくことが可能で３ｍ〜５ｍ程度の深さまで
掘削することができ、クレーン船の移動を少なく
しつつ大量の浚渫作業が可能であるとともに、打
降箇所の水深測量も正確になし得るものである。 As is clear from the above explanation, the rock crushing bar according to the present invention is located at the bottom of the rock crushing bar body, has deformed surfaces that gradually become narrower on both left and right sides, and has hydraulic flow generating parts on both the front and back sides. Because of this, as the rock is being demolished, a strong hydraulic flow is generated outward from both the front and back sides of the rock crushing bar body, moving the crushed rock to a position away from the location where it is being deposited and stacking it. It is something that can be done. Therefore, no crushed rock remains around the landing site, and the thickness of the crushed rock can be gradually increased, making it possible to excavate to a depth of about 3 m to 5 m, reducing the movement of the crane ship. In addition to being able to carry out a large amount of dredging work, it is also possible to accurately measure the depth of the water at the landing site.
また、砕岩棒本体の下端に破砕刃を嵌入し、両
者を溶接により一体的に連結してなるものである
から、破砕刃の取換えもクレーン船等の船上で容
易かつ迅速になし得るものであり、したがつて浚
渫作業の能率の向上を図り得るとともに、従来の
ような運搬経費の増大を防止できるもので、極め
て実用価値の高い砕岩棒を提供し得たものであ
る。 In addition, since the crushing blade is fitted into the lower end of the rock crushing rod body and the two are integrally connected by welding, the crushing blade can be easily and quickly replaced onboard a crane ship or other ship. Therefore, it is possible to improve the efficiency of dredging work, and also to prevent the conventional increase in transportation costs, thereby providing a rock crushing bar with extremely high practical value.
第１図は従来の砕岩棒を用いた砕岩状態を示す
省略正面図、第２図は本考案の砕岩棒の一実施例
を示す正面図、第３図は同上の側面図、第４図は
第１図の−線断面図、第５図は砕岩棒の使用
状態を示す省略側面図、第６図は同上の省略正面
図である。
１……砕岩棒、２……砕岩棒本体、３……破砕
刃、４……吊上げ用の受部、５……膨出基部、６
ａ，６ｂ……変形面、７，７……水圧流発生部、
８，８……曲面、１０……係合部、１１……係合
突部。
Fig. 1 is an abbreviated front view showing the state of rock crushing using a conventional rock crushing rod, Fig. 2 is a front view showing an embodiment of the rock crushing rod of the present invention, Fig. 3 is a side view of the same, and Fig. 4 is a FIG. 1 is a cross-sectional view taken along the - line in FIG. 1, FIG. 5 is an abbreviated side view showing how the rock crushing rod is used, and FIG. 6 is an abbreviated front view of the same. DESCRIPTION OF SYMBOLS 1... Rock crushing rod, 2... Rock crushing bar body, 3... Crushing blade, 4... Receptacle for lifting, 5... Swelling base, 6
a, 6b... deformed surface, 7, 7... hydraulic flow generation part,
8, 8... Curved surface, 10... Engaging portion, 11... Engaging protrusion.
Claims (1)
と、側面形状を略Ｖ字状となした破砕刃とを備
え、その砕岩棒本体の下側部に位置させて表裏及
び左右各方向に膨出させてなる略角形状の膨出基
部を設け、その膨出基部から下方に至るにしたが
い狭幅となる左右両変形面と、膨出基部から下方
に至るにしたがい砕岩棒本体の厚さに漸減する水
圧流発生部を設け、砕岩棒本体の下端に形成した
係合部と、前記破砕刃の上端に形成した係合突部
とを係合させ、その接合面を溶接により一体的に
連結してなる砕岩棒。 It is equipped with a rock crushing rod main body with a receiving part for lifting at the upper end, and a crushing blade with a roughly V-shaped side surface, and is placed on the lower side of the rock crushing rod main body and can be moved from front to back and in left and right directions. A substantially square-shaped bulging base is provided, and both left and right deformed surfaces become narrower as the bulge goes downward from the bulge base, and the thickness of the crushed rock bar body increases as the bulge goes downward from the bulge base. A hydraulic flow generation part that gradually decreases is provided, and the engaging part formed at the lower end of the rock crushing rod body is engaged with the engaging protrusion formed at the upper end of the crushing blade, and the joint surfaces are integrally welded. A crushed rock bar made of connected pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2504483U JPS59135993U (en) | 1983-02-24 | 1983-02-24 | rock crushing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2504483U JPS59135993U (en) | 1983-02-24 | 1983-02-24 | rock crushing rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59135993U JPS59135993U (en) | 1984-09-11 |
| JPS632556Y2 true JPS632556Y2 (en) | 1988-01-22 |
Family
ID=30156049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2504483U Granted JPS59135993U (en) | 1983-02-24 | 1983-02-24 | rock crushing rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59135993U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2632942B2 (en) * | 1988-07-22 | 1997-07-23 | 株式会社 池畑組 | Dredger construction support system |
-
1983
- 1983-02-24 JP JP2504483U patent/JPS59135993U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59135993U (en) | 1984-09-11 |
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