JPH0461189U - - Google Patents
Info
- Publication number
- JPH0461189U JPH0461189U JP10094890U JP10094890U JPH0461189U JP H0461189 U JPH0461189 U JP H0461189U JP 10094890 U JP10094890 U JP 10094890U JP 10094890 U JP10094890 U JP 10094890U JP H0461189 U JPH0461189 U JP H0461189U
- Authority
- JP
- Japan
- Prior art keywords
- outer tube
- inner tube
- tube
- reaction ring
- excavation
- 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
- 238000005553 drilling Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000003756 stirring Methods 0.000 description 2
Landscapes
- Earth Drilling (AREA)
Description
図面は本案の実施例を示し、第１図は掘削機の
側面図、第２図は撹拌ロツドの下部の拡大一部縦
断側面図、第３図はクサビ板楔入状態の同上側面
図、第４図は第２図の−線拡大断面図、第５
図は第１図の駆動部部分の拡大一部切欠正面図で
ある。
２……マスト、４……キヤリヤ、８……内管、
９……外管、１０……掘削ヘツド、１３……反力
環、１７……撹拌羽根、１８……クサビ板、９…
…偏心作動面。
The drawings show an embodiment of the present invention; Fig. 1 is a side view of the excavator, Fig. 2 is an enlarged partial vertical sectional side view of the lower part of the stirring rod, Fig. 3 is a side view of the same with the wedge plate wedged in, and Fig. 2 is a side view of the excavator. Figure 4 is an enlarged sectional view taken along the - line in Figure 2;
The figure is an enlarged partially cutaway front view of the drive portion of FIG. 1. 2...Mast, 4...Carrier, 8...Inner pipe,
9...Outer tube, 10...Drilling head, 13...Reaction force ring, 17...Stirring blade, 18...Wedge plate, 9...
...Eccentric working surface.
Claims (1)
ロツドの上端を接続して垂下した掘削機において
、 上記掘削ロツドが、下端に掘削ヘツドを有する
内管と、上記内管に回転自在かつ軸方向摺動自在
に被嵌され、外周面に作業具を有する外管とから
なり、該内管及び外管の上端部を上記回転駆動部
に互に独立して回転されるべくそれぞれ接続し、 上記内管の掘削ヘツドより若干上位に、掘削孔
とほぼ同径の外径を有する円筒状反力環を該内管
の全周方向へ偏心遊動可能の状態で回転自在に支
持させ、 上記外管の下端部に、該外管の摺動により上記
反力環の内周面に押接して該反力環を偏心遊動さ
せるべく一放射方向に張り出した偏心作動面を有
するクサビ部材を設けた、 掘削ロツドの掘削方向修正装置。[Scope of Claim for Utility Model Registration] An excavator in which the upper end of the excavating rod is connected to a rotary drive unit that is supported on the ground so as to be able to move up and down, and the excavator hangs down, the above-mentioned excavating rod having an inner pipe having an excavating head at the lower end, and the above-mentioned It consists of an outer tube that is rotatably and axially slidably fitted into the inner tube and has a working tool on its outer peripheral surface, and the upper ends of the inner tube and the outer tube are rotated independently of each other by the rotation drive unit. A cylindrical reaction ring having an outer diameter that is approximately the same as the diameter of the excavation hole is rotated slightly above the excavation head of the inner tube so that it can eccentrically swing around the entire circumference of the inner tube. an eccentric operating surface that is freely supported and extends in one radial direction at the lower end of the outer tube so as to press against the inner circumferential surface of the reaction ring as the outer tube slides and cause the reaction ring to swing eccentrically; A device for adjusting the excavation direction of a drilling rod, which is provided with a wedge member having a wedge member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10094890U JP2538925Y2 (en) | 1990-09-28 | 1990-09-28 | Drilling direction correction device for drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10094890U JP2538925Y2 (en) | 1990-09-28 | 1990-09-28 | Drilling direction correction device for drilling rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0461189U true JPH0461189U (en) | 1992-05-26 |
| JP2538925Y2 JP2538925Y2 (en) | 1997-06-18 |
Family
ID=31843994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10094890U Expired - Fee Related JP2538925Y2 (en) | 1990-09-28 | 1990-09-28 | Drilling direction correction device for drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538925Y2 (en) |
-
1990
- 1990-09-28 JP JP10094890U patent/JP2538925Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538925Y2 (en) | 1997-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |