JPH0223090U - - Google Patents
Info
- Publication number
- JPH0223090U JPH0223090U JP9940588U JP9940588U JPH0223090U JP H0223090 U JPH0223090 U JP H0223090U JP 9940588 U JP9940588 U JP 9940588U JP 9940588 U JP9940588 U JP 9940588U JP H0223090 U JPH0223090 U JP H0223090U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- impact
- chamber
- high pressure
- low
- 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
- 238000005553 drilling Methods 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000003116 impacting effect Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
Landscapes
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
第１図は本考案の衝撃削孔工具を用いた削孔装
置の全体側面図。第２図、第３図は本考案の削孔
工具の断面図を示し、このうち第２図は衝撃体の
打撃開始時の状態、第３図は同じく衝撃体が戻り
の状態を示す。第４図は削孔ビツトの正面図。第
５図は本考案によるトンネル掘削断面図。第６図
は従来技術による衝撃削孔装置の全体側面図、第
７図は従来技術によるトンネル掘削断面図。
１……衝撃発生ケース、１５……第１高圧室、
１４……圧力反転室、１７……低圧室、１８……
第２高圧室、１３……絞り、４５……高圧流路、
４４……低圧流路、３……衝撃体、２……削孔ビ
ツト、４６……ビツト内通路。
FIG. 1 is an overall side view of a drilling device using the impact drilling tool of the present invention. FIGS. 2 and 3 show cross-sectional views of the drilling tool of the present invention, of which FIG. 2 shows the state when the impacting body starts impacting, and FIG. 3 shows the state in which the impacting body has returned. Figure 4 is a front view of the drilling bit. Figure 5 is a sectional view of tunnel excavation according to the present invention. FIG. 6 is an overall side view of an impact drilling device according to the prior art, and FIG. 7 is a sectional view of tunnel excavation according to the prior art. 1... Shock occurrence case, 15... First hyperbaric chamber,
14...Pressure inversion chamber, 17...Low pressure chamber, 18...
2nd high pressure chamber, 13... throttle, 45... high pressure flow path,
44...Low pressure channel, 3...Impacting body, 2...Drilling bit, 46...Passage inside the bit.
Claims (1)
転室１４、低圧室１７、第２高圧室１８を設け、
さらに第１高圧室１５と圧力反転室１４との間に
は絞り１３を、第１高圧室１５と第２高圧室１８
との間には高圧流路４５を、低圧室１７からは流
体排出用の低圧流路４４をそれぞれ設け、衝撃発
生ケース１内に衝撃体３を嵌装し、該衝撃体３は
その端面の位置により圧力反転室１４と低圧室１
７とが断続できるよう擢動可能とし、衝撃発生ケ
ース１の先端部に擢動ならびに回転可能に嵌装さ
れた削孔ビツト２の端部を高圧流路１２から導入
された高圧流体によつて衝撃体に往復運動を発生
させて打撃できるよう第１高圧室１５と第２高圧
室１８とには適当な面積差を与えると共に、削孔
ビツト２には高圧流体が噴出する反力で削孔ビツ
ト２自身が回転できるようなビツト内通路４６を
設け、削孔ビツト２が回転しても高圧通路４５か
ら高圧流体が導入できるようにした衝撃削孔工具
。 A first high pressure chamber 15, a pressure reversal chamber 14, a low pressure chamber 17, and a second high pressure chamber 18 are provided in the shock generating case 1,
Furthermore, a throttle 13 is provided between the first high pressure chamber 15 and the pressure reversal chamber 14;
A high-pressure flow path 45 is provided between the low-pressure chamber 17 and a low-pressure flow path 44 for discharging fluid from the low-pressure chamber 17, and the impact body 3 is fitted in the impact generating case 1, and the impact body 3 is connected to the end face of the impact body 3. Depending on the position, pressure reversal chamber 14 and low pressure chamber 1
The end of the drilling bit 2, which is fitted in the tip of the impact generating case 1 so as to be able to swing and rotate, is movable so as to be connected to and connected to An appropriate area difference is provided between the first high pressure chamber 15 and the second high pressure chamber 18 so that the impact body can generate reciprocating motion and impact. This impact drilling tool is provided with a passage 46 inside the bit so that the bit 2 itself can rotate, and high pressure fluid can be introduced from the high pressure passage 45 even when the drilling bit 2 rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9940588U JPH0223090U (en) | 1988-07-26 | 1988-07-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9940588U JPH0223090U (en) | 1988-07-26 | 1988-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0223090U true JPH0223090U (en) | 1990-02-15 |
Family
ID=31326533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9940588U Pending JPH0223090U (en) | 1988-07-26 | 1988-07-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0223090U (en) |
-
1988
- 1988-07-26 JP JP9940588U patent/JPH0223090U/ja active Pending
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