JPS6443695A - Casing expansion joint device in excavator - Google Patents
Casing expansion joint device in excavatorInfo
- Publication number
- JPS6443695A JPS6443695A JP19623887A JP19623887A JPS6443695A JP S6443695 A JPS6443695 A JP S6443695A JP 19623887 A JP19623887 A JP 19623887A JP 19623887 A JP19623887 A JP 19623887A JP S6443695 A JPS6443695 A JP S6443695A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- protruded
- groove
- plate
- retracted
- 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 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000004575 stone Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Earth Drilling (AREA)
Abstract
PURPOSE: To improve excavation efficiency by a method wherein the head of a screw anger is protruded or retracted from the lower end of a casing according to the state of a ground, such as a soft ground, a boulder stone ground, and a hard ground. CONSTITUTION: A pair of rectangular plate-form keys are protruded in positions situated facing each other in the direction of diameter from an inside coupling cylinder 12 connected to a rotary drive cylinder 11, a guide groove is formed between a stripe guide plate 16 of an outside coupling cylinder 13 connected to a casing 6 and a combtooth-like groove plate 17, and three stages of upper, middle, and lower lock grooves are respectively formed in the groove plate 17. Normally, a key is normally engaged with the middle state lock groove, when the key reaches a hard ground, it with the lower stage lock groove, and when it reaches a soft ground and a boulder stone ground, it with the upper stage lock groove. The augers 8 are protruded approximately to the same positions at the lower end of the respective casings 6 or protruded downward or retracted to an upward position, and excavation is practicable according to the condition of a ground.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19623887A JPS6443695A (en) | 1987-08-07 | 1987-08-07 | Casing expansion joint device in excavator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19623887A JPS6443695A (en) | 1987-08-07 | 1987-08-07 | Casing expansion joint device in excavator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6443695A true JPS6443695A (en) | 1989-02-15 |
Family
ID=16354496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19623887A Pending JPS6443695A (en) | 1987-08-07 | 1987-08-07 | Casing expansion joint device in excavator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6443695A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0384115A (en) * | 1989-08-25 | 1991-04-09 | Matsuzawa Kiko:Kk | Excavated casing |
KR100891129B1 (en) * | 2008-07-24 | 2009-04-03 | (주)한국중기계 | Pile case of auger for engineering work underground pile |
KR101044485B1 (en) * | 2009-12-30 | 2011-06-27 | 이규철 | Casing for deep depth filing hole |
EP2455388A1 (en) | 2010-11-23 | 2012-05-23 | LanthioPep B.V. | Novel angiotensin type 2 (AT2) receptor agonists and uses thereof. |
JP2021110094A (en) * | 2020-01-06 | 2021-08-02 | 株式会社エヌテイマテックス | casing |
-
1987
- 1987-08-07 JP JP19623887A patent/JPS6443695A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0384115A (en) * | 1989-08-25 | 1991-04-09 | Matsuzawa Kiko:Kk | Excavated casing |
KR100891129B1 (en) * | 2008-07-24 | 2009-04-03 | (주)한국중기계 | Pile case of auger for engineering work underground pile |
KR101044485B1 (en) * | 2009-12-30 | 2011-06-27 | 이규철 | Casing for deep depth filing hole |
EP2455388A1 (en) | 2010-11-23 | 2012-05-23 | LanthioPep B.V. | Novel angiotensin type 2 (AT2) receptor agonists and uses thereof. |
WO2012070936A1 (en) | 2010-11-23 | 2012-05-31 | Lanthiopep B.V. | Novel angiotensin type 2 (at2) receptor agonists and uses thereof |
JP2021110094A (en) * | 2020-01-06 | 2021-08-02 | 株式会社エヌテイマテックス | casing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2129835A1 (en) | Template and Process for Drillng and Completing Multiple Wells | |
NO912735L (en) | COMPOSITION CALL TO PROTECT AN ANTENNA FOR A FORMATION EVALUATION TOOL. | |
GB1495875A (en) | Bore hole airhammer and anvil bit | |
SE9302718L (en) | Drilling device for a rock drill | |
IT1234069B (en) | PROCEDURE FOR THE EXECUTION OF THE COVERING OF A GALLERY AND EQUIPMENT FOR THE ACTIVATION OF THIS PROCEDURE | |
JPS6443695A (en) | Casing expansion joint device in excavator | |
GB868175A (en) | Rock drill construction | |
GB1419280A (en) | Percussion earth drilling apparatus | |
CA2267508A1 (en) | Apparatus for static underground drilling | |
EP0233038A3 (en) | Down-the-hole-drill | |
DE69303098D1 (en) | Drill for use in the borehole | |
KR970075211A (en) | Free face drill for rock cutting | |
Dowden et al. | Coping with boulders in soft ground TBM tunneling. | |
JPS5612432A (en) | Underground wall hole excavator | |
CN218407318U (en) | Rotary excavating combined drill bit | |
ATE4133T1 (en) | SOIL COMPACTION DRILL HEAD WITH FLAT END PLATE. | |
CN210705388U (en) | A simple and easy drilling equipment for in earth and stone excavation construction | |
CN215332646U (en) | Slope protection device of rotary drilling machine power head | |
CN212689935U (en) | Three-wing concave PDC drill bit | |
RU1789640C (en) | Device for drilling of branched shafts of boreholes | |
KR930002626Y1 (en) | Drilling machine | |
CA2386726A1 (en) | Combination bucket/breaker apparatus for excavator boom stick | |
SU1250638A1 (en) | Installation for making holes in earth | |
CN111764898A (en) | Multifunctional mining machinery stone digging arm | |
SU808594A1 (en) | Screw pile |