JPS63145990U - - Google Patents
Info
- Publication number
- JPS63145990U JPS63145990U JP3437387U JP3437387U JPS63145990U JP S63145990 U JPS63145990 U JP S63145990U JP 3437387 U JP3437387 U JP 3437387U JP 3437387 U JP3437387 U JP 3437387U JP S63145990 U JPS63145990 U JP S63145990U
- Authority
- JP
- Japan
- Prior art keywords
- casing
- piston rod
- striking
- piston
- wall
- 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 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 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図は第１図の矢視―線に沿う縦断正面図で
ある。
１……ケーシング、２……外部給気管、３……
ピストンロツド嵌挿孔、３ａ……ピストン側圧力
室、３ｂ……ロツド側圧力室、４……ピストンロ
ツド、５，７……高圧流体通路、６……通路開閉
装置、８……ピストンロツド押え板、９……Ｏリ
ング、１０……盲蓋、１１……排気通路。
FIG. 1 is a longitudinal side view showing an embodiment of the excavation direction control mechanism for a pneumatic percussion type excavator according to the present invention, and FIG. 2 is a longitudinal sectional front view taken along the arrow line in FIG. 1. 1...Casing, 2...External air supply pipe, 3...
Piston rod insertion hole, 3a... Piston side pressure chamber, 3b... Rod side pressure chamber, 4... Piston rod, 5, 7... High pressure fluid passage, 6... Passage opening/closing device, 8... Piston rod holding plate, 9 ...O-ring, 10...Blind lid, 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
シングの側壁部に複数個のピストンロツド嵌挿孔
を放射状に設けて、同各ピストンロツド嵌挿孔に
ピストンロツドをケーシングの側壁面から出没可
能に嵌挿し、外部供給管から供給される高圧流体
を同各ピストンロツドの後方に形成したピストン
側側圧力室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
の掘進方向制御機構。 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 backward striking block provided at the rear of the casing. In a pneumatic impact type excavator that moves backward by striking the casing, a plurality of piston rod insertion holes are provided radially in the side wall of the casing, and the piston rods are inserted into the respective piston rod insertion holes on the side wall of the casing. A high-pressure fluid supply passage is provided in the casing wall to be removably inserted into the casing wall and to guide high-pressure fluid supplied from the external supply pipe to a piston-side pressure chamber formed at the rear of each piston rod. An excavation direction control mechanism for a pneumatic impact type excavator, characterized by being provided with a passage opening/closing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3437387U JPS63145990U (en) | 1987-03-11 | 1987-03-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3437387U JPS63145990U (en) | 1987-03-11 | 1987-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63145990U true JPS63145990U (en) | 1988-09-27 |
Family
ID=30842859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3437387U Pending JPS63145990U (en) | 1987-03-11 | 1987-03-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63145990U (en) |
-
1987
- 1987-03-11 JP JP3437387U patent/JPS63145990U/ja active Pending
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