JPS63141284U - - Google Patents
Info
- Publication number
- JPS63141284U JPS63141284U JP3312887U JP3312887U JPS63141284U JP S63141284 U JPS63141284 U JP S63141284U JP 3312887 U JP3312887 U JP 3312887U JP 3312887 U JP3312887 U JP 3312887U JP S63141284 U JPS63141284 U JP S63141284U
- Authority
- JP
- Japan
- Prior art keywords
- rotary
- bit
- rod
- cylindrical
- center
- 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.)
- Pending
Links
- 238000009412 basement excavation Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案による回転式掘削装置の一実施
例を示す縦断面図、第２図は第１図のａ―ａ拡大
断面図、第３図は該実施例のロツド上端部の金具
との接続構造を示す縦断面図、第４図は本実施例
の回転式掘削装置を作業車に装着して作業を行な
つている状態を示す側面図、第５図は従来の回転
式掘削装置の問題点を説明するための掘削状態説
明図である。
Fig. 1 is a longitudinal sectional view showing an embodiment of a rotary excavation device according to the present invention, Fig. 2 is an enlarged sectional view taken along a-a of Fig. 1, and Fig. 3 shows a metal fitting at the upper end of the rod of the embodiment. Fig. 4 is a side view showing the rotary excavation device of this embodiment being mounted on a work vehicle and is being used for work, and Fig. 5 is a conventional rotary excavation device. It is an explanatory diagram of an excavation state for explaining the problem.
Claims (1)
掘削装置において、回転ビツトの中心に、試掘穴
に挿入するロツドを、該ロツドの下端が回転ビツ
トの下面より突出するように取付けたことを特徴
とする回転式掘削装置。 ２ 前記ロツドを、回転ビツトの天板部の中心に
結合した筒形回転軸内に、ロツド下端が回転ビツ
ト下面より上まで引上げ可能となるように上下動
自在に取付けたことを特徴とする実用新案登録請
求の範囲第１項記載の回転式掘削装置。 ３ 前記筒形回転軸が回転ビツトのカツタ保護用
の水を供給する流路を兼ねた構造を有することを
特徴とする実用新案登録請求の範囲第２項記載の
回転式掘削装置。[Claims for Utility Model Registration] 1. In a rotary drilling device having a cylindrical rotary bit with an opening at the bottom, a rod to be inserted into a test hole is placed in the center of the rotary bit, and the lower end of the rod protrudes from the lower surface of the rotary bit. A rotary drilling rig characterized by being installed as follows. 2. A practical application characterized in that the rod is mounted in a cylindrical rotating shaft connected to the center of the top plate of the rotating bit so that it can move up and down so that the lower end of the rod can be pulled up above the lower surface of the rotating bit. A rotary excavation device according to claim 1 of the patent registration claim. 3. The rotary excavation device according to claim 2, wherein the cylindrical rotating shaft has a structure that also serves as a flow path for supplying water for protecting the cutter of the rotary bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3312887U JPS63141284U (en) | 1987-03-09 | 1987-03-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3312887U JPS63141284U (en) | 1987-03-09 | 1987-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63141284U true JPS63141284U (en) | 1988-09-16 |
Family
ID=30840447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3312887U Pending JPS63141284U (en) | 1987-03-09 | 1987-03-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63141284U (en) |
-
1987
- 1987-03-09 JP JP3312887U patent/JPS63141284U/ja active Pending
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