JPS6326478Y2 - - Google Patents
Info
- Publication number
- JPS6326478Y2 JPS6326478Y2 JP1982185596U JP18559682U JPS6326478Y2 JP S6326478 Y2 JPS6326478 Y2 JP S6326478Y2 JP 1982185596 U JP1982185596 U JP 1982185596U JP 18559682 U JP18559682 U JP 18559682U JP S6326478 Y2 JPS6326478 Y2 JP S6326478Y2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- cutting edge
- blade
- casing body
- blades
- 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
- 238000009412 basement excavation Methods 0.000 claims description 11
- 239000004576 sand Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、土木等の建設工事で杭孔などの掘削
を行う掘削ケーシングの刃に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an excavation casing blade for excavating pile holes and the like in construction work such as civil engineering.
例えば、アースオーガーなどを用いて掘削する
場合にオーガースクリユーの外側に刃付きのケー
シングを置き、別途の建込駆動装置でこのケーシ
ングを回転しながら地中に挿入するようにすれば
比較的大径の孔を簡単に得ることができる。
For example, when excavating with an earth auger, you can place a casing with blades on the outside of the auger screw, and use a separate construction drive device to insert the casing into the ground while rotating. holes of the same diameter can be easily obtained.
しかし、該ケーシングの下端面に一体的に形成
又は植設する掘削刃は、これをすべて同一方向に
並べて配設したのでは掘削した土砂がケーシング
下端で内側に行くものと、外側に出るものとに分
散してしまい適切に処理できないという欠点があ
つた。 However, if the excavation blades that are integrally formed or planted on the lower end surface of the casing are all arranged in the same direction, some of the excavated earth and sand will go inward at the lower end of the casing, while others will come out to the outside. The problem was that it could not be properly processed because it was dispersed into multiple parts.
〔考案が解決しようとする問題点〕
本考案の目的は前記従来例の不都合を解消し、
掘削土砂を効率よくケーシング内部に集めて排土
性能を高めることができる掘削ケーシングの刃を
提供することにある。[Problems to be solved by the invention] The purpose of the invention is to eliminate the disadvantages of the conventional example,
To provide a blade for an excavation casing that can efficiently collect excavated soil inside the casing and improve soil removal performance.
しかしてこの目的は本考案によれば、刃先線か
らのテーパー面のうち片面をケーシングの中心に
向けて爪形の掘削刃をケーシング下端に相互間隔
を存して植設し、かつ各掘削刃は刃先線及びテー
パー面の片面がケーシングの回転方向で順次ケー
シング中心に近づくように並べることを適宜繰返
すよう波形に配列したことにより達成される。
However, according to the present invention, the purpose of the lever is to install claw-shaped digging blades at a mutual interval at the lower end of the casing with one side of the tapered surface from the cutting edge line facing the center of the casing, and each digging blade This is achieved by arranging the cutting edge line and one side of the tapered surface in a waveform so as to sequentially approach the center of the casing in the direction of rotation of the casing, and repeating the process as appropriate.
以下、図面について本考案の実施例を詳細に説
明する。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は、本考案の刃を備えた掘削ケーシング
の側面図で、ケーシング本体１は台車（図示せ
ず）の前端に起立支持したリーダーマスト２に昇
降自在に吊下げられるケーシング建込用の駆動装
置３に貫通支承される。図中４は駆動装置のモー
ター、５はケーシング本体１へのチヤツク部を示
す。 Fig. 1 is a side view of an excavation casing equipped with the blade of the present invention, in which the casing body 1 is a casing erecting structure that is vertically suspended from a leader mast 2 that is supported upright on the front end of a truck (not shown). It is supported through the drive device 3. In the figure, reference numeral 4 indicates the motor of the drive device, and reference numeral 5 indicates a chuck portion to the casing body 1.
なお、該リーダーマスト２の上部からアースオ
ーガー駆動装置を昇降自在に吊下げ、この駆動装
置に連結して垂下するオーガースクリユーをケー
シング本体１内に配設する場合が多い。 Incidentally, in many cases, an earth auger drive device is suspended from the upper part of the leader mast 2 so as to be able to rise and fall freely, and an auger screw that is connected to this drive device and hangs down is disposed inside the casing body 1.
第２図は本考案の第１実施例を示す上記ケーシ
ング本体１の底面図、第３図は部分側面図で、ケ
ーシング本体１の下端には爪形で刃の中心線であ
る刃先線７を下方に、かつケーシング本体１の周
方向に向けた掘削刃６ａ，６ｂ，６ｃを適宜間隔
で植設する。この場合、掘削刃６ａ，６ｂ，６ｃ
は刃先線７の両側にテーパー面があるが、そのう
ちの片面はケーシング本体１の中心に向くことに
なる。図中８は硬質チツプ部を示す。 Fig. 2 is a bottom view of the casing body 1 showing the first embodiment of the present invention, and Fig. 3 is a partial side view.The lower end of the casing body 1 has a claw-shaped cutting edge line 7 which is the center line of the blade. Digging blades 6a, 6b, and 6c are planted downward and at appropriate intervals in the circumferential direction of the casing body 1. In this case, the digging blades 6a, 6b, 6c
has tapered surfaces on both sides of the cutting edge line 7, one of which faces toward the center of the casing body 1. 8 in the figure indicates a hard tip portion.
第４図に示すように、掘削刃６ａは刃先線７が
ケーシング本体１の下端外周に位置する外刃をな
し、多少外側に向けて傾斜する。掘削刃６ｂは第
５図に示すように刃先線７がケーシング本体１の
下端中に位置する中刃をなすもの、また掘削刃６
ｃは第６図に示すように刃先線７がケーシング本
体１の下端内側に位置する内刃をなすものであ
る。 As shown in FIG. 4, the cutting edge line 7 of the excavating blade 6a forms an outer blade located on the outer periphery of the lower end of the casing body 1, and is slightly inclined outward. As shown in FIG. 5, the excavating blade 6b has a cutting edge line 7 located in the lower end of the casing body 1, forming a middle blade, and the excavating blade 6b.
C is an inner cutter whose cutting edge line 7 is located inside the lower end of the casing body 1, as shown in FIG.
第２図に示すように、ケーシング本体１の回転
方向（第２図中矢印方向）に向けて外刃６ａ、中
刃６ｂ、内刃６ｃの順序を繰返すようにして各掘
削刃を配列させれば、刃先線７及びテーパー面９
がケーシング本体１の中心に順次近づくように並
び、この並びを繰返すようにして波形をなすよう
に位置付けられる。なお、ケーシング本体１の下
端で各掘削刃間の隙間には肉盛りを施しておく。 As shown in FIG. 2, the excavating blades are arranged so that the order of the outer cutter 6a, middle cutter 6b, and inner cutter 6c is repeated in the direction of rotation of the casing body 1 (in the direction of the arrow in FIG. 2). , cutting edge line 7 and tapered surface 9
are arranged so as to approach the center of the casing body 1 one after another, and this arrangement is repeated to form a waveform. Incidentally, the gaps between the respective excavation blades at the lower end of the casing body 1 are padded.
第７図は本考案の第２実施例を示す底面図、第
８図は同上側面図で、前記第１実施例よりもケー
シング本体１が小径の場合である。 FIG. 7 is a bottom view showing a second embodiment of the present invention, and FIG. 8 is a top side view of the same, in which the casing body 1 has a smaller diameter than that of the first embodiment.
外刃たる掘削刃６ａ、中刃たる掘削刃６ｂ、内
刃たる掘削刃６ｃを順次間隔を存して並べ、刃先
線７を波形に配列される点等大部分の構成は前記
第１実施例と同一であるが、本実施例では各掘削
刃の間の隙間部分のケーシング本体１の下端面に
も内外に向けて硬質チツプからなる刃先１０，１
０′を形成した。 Most of the structure is the same as that of the first embodiment, such as that the outer cutting edge 6a, the middle cutting edge 6b, and the inner cutting edge 6c are arranged at intervals, and the cutting edge lines 7 are arranged in a waveform. However, in this embodiment, the cutting edges 10 and 1 made of hard chips are also arranged on the lower end surface of the casing body 1 in the gap between the respective excavating blades.
0' was formed.
次に、使用法及び作用について説明すると、第
１図に示す駆動装置３を動かしてケーシング本体
１を回転すれば、掘削刃６ａ，６ｂ，６ｃも回転
しここで掘削が行われ（第１図中矢印は回転方向
を示す）、自重でリーダーマスト２に沿つて地中
深くに挿入されていく。 Next, the usage and operation will be explained. When the drive device 3 shown in FIG. 1 is moved to rotate the casing body 1, the excavation blades 6a, 6b, and 6c are also rotated and excavation is performed here (see FIG. 1). (The middle arrow indicates the direction of rotation), and is inserted deep underground along the leader mast 2 under its own weight.
この時、外刃たる掘削刃６ａで削られた土砂は
テーパー内面９に沿つて少し内側に入り、中刃た
る掘削刃６ｂにあたりこの刃６ｂのテーパー内面
９で更に内側に入り、次いで内刃たる掘削刃６ｃ
にあたりそのテーパー内面９でケーシング本体１
内へと導かれる。すなわち、外、中、内の順で掘
削刃が並び、刃先線７及びテーパー内面９は外側
から内側へ向かう波列を繰返すので、掘削土砂は
この波に沿つて効率よくケーシング本体１内へ送
り込まれ、オーガースクリユー等で上方に搬送さ
れることになる。 At this time, the earth and sand scraped by the outer cutting blade 6a enters a little inside along the tapered inner surface 9, hits the middle cutting edge 6b, and enters further inside by the tapered inner surface 9 of this blade 6b, and then enters the inner cutting edge. drilling blade 6c
The tapered inner surface 9 of the casing body 1
guided inward. That is, the excavating blades are arranged in the order of outer, middle, and inner, and the cutting edge line 7 and the tapered inner surface 9 repeat the wave train from the outer side to the inner side, so the excavated soil is efficiently sent into the casing body 1 along these waves. Then, it is transported upward by an auger screw or the like.
以上述べたように本考案の掘削ケーシングの刃
は、刃先の配列に沿つて掘削土砂をケーシング内
に集めることができ、排土性能を高めた効率よい
掘削作業をなすことができるものである。
As described above, the excavation casing blade of the present invention can collect excavated earth and sand into the casing along the arrangement of the blade edges, and can perform efficient excavation work with improved earth removal performance.
第１図は本考案の刃を備えた掘削ケーシングの
側面図、第２図は第１実施例を示すケーシング本
体の底面図、第３図は同上部分側面図、第４図、
第５図、第６図はそれぞれ第２図のＡ−Ａ線、Ｂ
−Ｂ線、Ｃ−Ｃ線断面図、第７図は本考案の第２
実施例を示すケーシング本体の底面図、第８図は
同上側面図である。
１……ケーシング本体、２……リーダーマス
ト、３……駆動装置、４……モーター、５……チ
ヤツク部、６ａ，６ｂ，６ｃ……掘削刃、７……
刃先線、８……硬質チツプ、９……テーパー内
面、１０，１０′……刃先。
Fig. 1 is a side view of the excavation casing equipped with the blade of the present invention, Fig. 2 is a bottom view of the casing body showing the first embodiment, Fig. 3 is a partial side view of the same, Fig. 4,
Figures 5 and 6 are lines A-A and B in Figure 2, respectively.
-B line, C-C line sectional view, Figure 7 is the second part of the present invention.
FIG. 8 is a bottom view of the casing body showing the embodiment, and FIG. 8 is a side view of the same. DESCRIPTION OF SYMBOLS 1...Casing body, 2...Leader mast, 3...Drive device, 4...Motor, 5...Chuck part, 6a, 6b, 6c...Drilling blade, 7...
Cutting edge line, 8... Hard tip, 9... Tapered inner surface, 10, 10'... Cutting edge.
Claims (1)
グの中心に向けて爪形の掘削刃をケーシング下端
に相互間隔を存して植設し、かつ各掘削刃は刃先
線及びテーパー面の片面がケーシングの回転方向
で順次ケーシング中心に近づくように並べること
を適宜繰返すよう波形に配列したことを特徴とす
る掘削ケーシングの刃。 Claw-shaped digging blades are planted at the lower end of the casing with one side of the tapered surface from the cutting edge line facing the center of the casing, and each digging blade has the cutting edge line and one side of the tapered surface facing the center of the casing. An excavation casing blade characterized in that the blades are arranged in a waveform so as to be repeatedly arranged so as to approach the center of the casing sequentially in the rotational direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18559682U JPS5989183U (en) | 1982-12-08 | 1982-12-08 | drilling casing blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18559682U JPS5989183U (en) | 1982-12-08 | 1982-12-08 | drilling casing blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5989183U JPS5989183U (en) | 1984-06-16 |
| JPS6326478Y2 true JPS6326478Y2 (en) | 1988-07-18 |
Family
ID=30401107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18559682U Granted JPS5989183U (en) | 1982-12-08 | 1982-12-08 | drilling casing blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5989183U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0535195Y2 (en) * | 1989-06-16 | 1993-09-07 | ||
| JP2021173113A (en) * | 2020-04-28 | 2021-11-01 | アロイ工業株式会社 | Abrasion resistant structure of excavating machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53157102U (en) * | 1977-05-16 | 1978-12-09 |
-
1982
- 1982-12-08 JP JP18559682U patent/JPS5989183U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5989183U (en) | 1984-06-16 |
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