JPS61125585U - - Google Patents
Info
- Publication number
- JPS61125585U JPS61125585U JP797385U JP797385U JPS61125585U JP S61125585 U JPS61125585 U JP S61125585U JP 797385 U JP797385 U JP 797385U JP 797385 U JP797385 U JP 797385U JP S61125585 U JPS61125585 U JP S61125585U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- mechanical seal
- umbrella
- rotating body
- protrudes
- 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 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 description 2
Description
第１図は本考案に係る掘削ドリル用メカニカル
シールの一実施例の装着状態を示す正断面図、第
２図は同実施例を構成する回転環の正断面図、第
３図は同平面図、第４図は従来例に係る掘削ドリ
ル用メカニカルシールの装着状態を示す正断面図
である。
１……ハウジング、２……固定軸、３……傘状
回転体、４……超硬質ビツト、５……軸孔、６，
７……ベアリング、１０……固定環、１０′，１
４′……摺動面、１３……Ｏリング、１４……回
転環、１５……羽根部材、１５′……傾斜部、Ｍ
′……メカニカルシール。
Fig. 1 is a front sectional view showing an installed state of an embodiment of a mechanical seal for an excavation drill according to the present invention, Fig. 2 is a front sectional view of a rotary ring constituting the embodiment, and Fig. 3 is a plan view of the same. , FIG. 4 is a front sectional view showing a state in which a conventional mechanical seal for an excavation drill is installed. DESCRIPTION OF SYMBOLS 1...Housing, 2...Fixed shaft, 3...Umbrella-shaped rotating body, 4...Super hard bit, 5...Shaft hole, 6,
7... Bearing, 10... Fixed ring, 10', 1
4'...Sliding surface, 13...O ring, 14...Rotating ring, 15...Blade member, 15'...Slanted part, M
'……mechanical seal.
Claims (1)
ハウジングより突出する端部に遊嵌冠着され、外
側面に超硬質のビツトを多数突設してなる傘状回
転体が、その回転により掘削を行なう掘削ドリル
の、前記ハウジングと前記傘状回転体との間に介
装されるメカニカルシールにおいて、前記傘状回
転体側に固定される回転環の外側面に対して所要
数の羽根部材を周方向等配状に突設し、該羽根部
材の少なくとも一部が、径方向に対し、その回転
によつて周囲の流体等を外径側へ排出せしめる方
向に傾斜してなることを特徴とする掘削ドリル用
メカニカルシール。 An umbrella-shaped rotating body, which is loosely fitted to the end of a fixed shaft that is integrally fixed to the housing and protrudes from the housing, and has a large number of ultra-hard bits protruding from its outer surface, excavates by rotation. In a mechanical seal interposed between the housing and the umbrella-shaped rotating body of a drilling drill that performs The blade member is characterized in that it protrudes in an equidistant manner, and at least a portion of the blade member is inclined with respect to the radial direction in a direction that discharges surrounding fluid, etc. to the outer diameter side by rotation thereof. Mechanical seal for drilling drills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP797385U JPH0211516Y2 (en) | 1985-01-25 | 1985-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP797385U JPH0211516Y2 (en) | 1985-01-25 | 1985-01-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61125585U true JPS61125585U (en) | 1986-08-07 |
| JPH0211516Y2 JPH0211516Y2 (en) | 1990-03-23 |
Family
ID=30486824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP797385U Expired JPH0211516Y2 (en) | 1985-01-25 | 1985-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0211516Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01322086A (en) * | 1988-06-23 | 1989-12-27 | Shiomigumi:Kk | Drilling head used for earth auger device |
-
1985
- 1985-01-25 JP JP797385U patent/JPH0211516Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01322086A (en) * | 1988-06-23 | 1989-12-27 | Shiomigumi:Kk | Drilling head used for earth auger device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0211516Y2 (en) | 1990-03-23 |
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