JPS58149489U - Turbo drill shaft sealing device - Google Patents
Turbo drill shaft sealing deviceInfo
- Publication number
- JPS58149489U JPS58149489U JP4647582U JP4647582U JPS58149489U JP S58149489 U JPS58149489 U JP S58149489U JP 4647582 U JP4647582 U JP 4647582U JP 4647582 U JP4647582 U JP 4647582U JP S58149489 U JPS58149489 U JP S58149489U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- pressure mechanical
- shaft
- mechanical seal
- bit
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のターボドリルの一例を示す部分切断側面
図、第２図は本考案の装置を施したターボドリルの一部
切断側面図、第３図は第２図の■部の拡大図、第４図は
第２図の■部の拡大図である。
１・・・・・・ハウジングζ２・・・・・・シャフト、
４．６・・・・・・ラジアル円筒ころ軸受、５・・・・
・・スラストころ軸受、１３・・・・・・バランスピス
トン、１４・・・・・・低圧メカニカルシール、１５・
・・・・・金属製ベローズ、１６・・・・・・油溜、２
２・・・・・・高圧メカニカルシール。Fig. 1 is a partially cut-away side view showing an example of a conventional turbo drill, Fig. 2 is a partially cut-away side view of a turbo drill equipped with the device of the present invention, and Fig. 3 is an enlarged view of the part ■ in Fig. 2. , FIG. 4 is an enlarged view of the section ■ in FIG. 2. 1...Housing ζ2...Shaft,
4.6... Radial cylindrical roller bearing, 5...
... Thrust roller bearing, 13 ... Balance piston, 14 ... Low pressure mechanical seal, 15 ...
...Metal bellows, 16...Oil sump, 2
2...High pressure mechanical seal.
Claims (1)
入して、該シャフトの回転と掘削時のビット反力を支持
する軸受と、圧送された流体によりシャフトに回転力を
発生させる多数段のタービン部を備えたターボドリルに
おいて、上記軸受に鋼製軸受を用い、且つビットとター
ビン部との間に位置する軸受を油浴潤滑させるため該軸
受を挾んでビット側に高圧メカニカルシールを、又ター
ビン側に低圧メカニカルシールをそれぞれ設けて両シー
ル間に油を封入させると共に、低圧メカニカルシールよ
りもタービン側にバランスピストンを設けて該バランス
ピストンと低圧メカニカルシール間にベローズを配する
と共に油溜を形成してなり、上記油溜内にグリース油を
封入させたことを特徴とするターボドリルの軸封装置。A shaft with a bit attached to the tip is inserted into the housing, and a bearing that supports the rotation of the shaft and the reaction force of the bit during excavation, and a multi-stage turbine section that generates rotational force on the shaft using the pumped fluid are installed. In this turbo drill, a steel bearing is used as the bearing, and in order to lubricate the bearing located between the bit and the turbine part in an oil bath, a high-pressure mechanical seal is installed on the bit side and a high-pressure mechanical seal is installed on the turbine side, sandwiching the bearing. Low-pressure mechanical seals are respectively provided to seal oil between both seals, and a balance piston is provided closer to the turbine than the low-pressure mechanical seal, and a bellows is disposed between the balance piston and the low-pressure mechanical seal to form an oil reservoir. A shaft sealing device for a turbo drill, characterized in that grease oil is sealed in the oil reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4647582U JPS58149489U (en) | 1982-03-31 | 1982-03-31 | Turbo drill shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4647582U JPS58149489U (en) | 1982-03-31 | 1982-03-31 | Turbo drill shaft sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58149489U true JPS58149489U (en) | 1983-10-07 |
| JPS6235740Y2 JPS6235740Y2 (en) | 1987-09-10 |
Family
ID=30057468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4647582U Granted JPS58149489U (en) | 1982-03-31 | 1982-03-31 | Turbo drill shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58149489U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4953501A (en) * | 1972-08-02 | 1974-05-24 | ||
| JPS5030562A (en) * | 1973-07-17 | 1975-03-26 |
-
1982
- 1982-03-31 JP JP4647582U patent/JPS58149489U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4953501A (en) * | 1972-08-02 | 1974-05-24 | ||
| JPS5030562A (en) * | 1973-07-17 | 1975-03-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6235740Y2 (en) | 1987-09-10 |
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