JPS63145989U - - Google Patents
Info
- Publication number
- JPS63145989U JPS63145989U JP3437287U JP3437287U JPS63145989U JP S63145989 U JPS63145989 U JP S63145989U JP 3437287 U JP3437287 U JP 3437287U JP 3437287 U JP3437287 U JP 3437287U JP S63145989 U JPS63145989 U JP S63145989U
- Authority
- JP
- Japan
- Prior art keywords
- casing
- pressure fluid
- high pressure
- striking
- hammer
- 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
- 239000012530 fluid Substances 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Description
第１図は本考案に係わる空圧打撃式掘進機の掘
進方向制御機構の一実施例を示す縦断側面図、第
２図はその一部を拡大して示す縦断側面図、第３
図は第２図の矢視―線に沿う縦断正面図であ
る。
１……ハンマー、２……ケーシング、３……チ
ジエル、４……外部給気管、５……通路開閉装置
、６……高圧流体通路、７……高圧流体噴出用ノ
ズル、８……外部供給管、９……Ｏリング、１０
……後進用打撃ブロツク、１１……排気通路。
Fig. 1 is a vertical side view showing an embodiment of the excavation direction control mechanism of a pneumatic percussion type excavator according to the present invention, Fig. 2 is a longitudinal side view showing an enlarged part of the mechanism, and Fig. 3
The figure is a longitudinal sectional front view taken along the arrow line in FIG. 2. DESCRIPTION OF SYMBOLS 1... Hammer, 2... Casing, 3... Chill, 4... External air supply pipe, 5... Passage opening/closing device, 6... High pressure fluid passage, 7... High pressure fluid ejection nozzle, 8... External supply Pipe, 9...O ring, 10
...Blowing block for reversing, 11...Exhaust passage.
Claims (1)
りハンマーをケーシング内に往復動させて、同ケ
ーシングの前端部に設けたチジエルを打撃するこ
とより前進を、同ケーシングの後部に設けた後進
用打撃ブロツクを打撃することにより後進を、そ
れぞれ行う空圧打撃式掘進機において、前記ケー
シングの前端部に複数個の高圧流体噴出用ノズル
を円周方向に間隔を置いて設け、外部供給管から
供給される高圧流体を同各高圧流体噴出用ノズル
のそれぞれに導く高圧流体供給通路を前記ケーシ
ング壁に設け、同各高圧流体供給通路に通路開閉
装置を設けたことを特徴とする空圧打撃式掘進機
の掘進方向制御装置。 A hammer is reciprocated inside the casing using high-pressure air for excavation supplied from an external air supply pipe, and the hammer is moved forward by striking a chisel provided at the front end of the casing, and a striking block for backward movement provided at the rear of the casing. In a pneumatic impact type excavator that moves backward by striking the casing, a plurality of high-pressure fluid jetting nozzles are provided at intervals in the circumferential direction at the front end of the casing, and the high-pressure fluid is supplied from an external supply pipe. A pneumatic impact type excavator characterized in that a high pressure fluid supply passage for guiding high pressure fluid to each of the high pressure fluid jetting nozzles is provided in the casing wall, and a passage opening/closing device is provided in each of the high pressure fluid supply passages. Excavation direction control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3437287U JPS63145989U (en) | 1987-03-11 | 1987-03-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3437287U JPS63145989U (en) | 1987-03-11 | 1987-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63145989U true JPS63145989U (en) | 1988-09-27 |
Family
ID=30842857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3437287U Pending JPS63145989U (en) | 1987-03-11 | 1987-03-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63145989U (en) |
-
1987
- 1987-03-11 JP JP3437287U patent/JPS63145989U/ja active Pending
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