JPS62143788U - - Google Patents
Info
- Publication number
- JPS62143788U JPS62143788U JP2745386U JP2745386U JPS62143788U JP S62143788 U JPS62143788 U JP S62143788U JP 2745386 U JP2745386 U JP 2745386U JP 2745386 U JP2745386 U JP 2745386U JP S62143788 U JPS62143788 U JP S62143788U
- Authority
- JP
- Japan
- Prior art keywords
- sliding contact
- contact member
- rotating shaft
- fluid
- outer cylinder
- 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 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Description
第１図から第３図は本考案の実施例の要部を示
すもので、第１図は断面図、第２図は第１図の
矢視図、第３図は摺接面の一例を示す斜視図、第
４図はターボドリルの全体を概略的に示す断面図
、第５図は従来例を示す断面図である。
１は外筒、２は回転軸、３は排出孔、６，９は
摺接部材、６ａ，９ａは摺接面、１１は溝。
Figures 1 to 3 show the main parts of an embodiment of the present invention. Figure 1 is a sectional view, Figure 2 is a view taken in the direction of the arrow in Figure 1, and Figure 3 is an example of the sliding surface. 4 is a sectional view schematically showing the entire turbo drill, and FIG. 5 is a sectional view showing a conventional example. 1 is an outer cylinder, 2 is a rotating shaft, 3 is a discharge hole, 6 and 9 are sliding members, 6a and 9a are sliding surfaces, and 11 is a groove.
Claims (1)
流体で駆動されるタービンセクシヨンにて回動駆
動し、このタービンセクシヨンからの高圧流体を
回転軸２の軸心に設けた排出孔３と回転軸２の外
周部に流すようにしたダウンホールモータの上記
回転軸２の外周部と外筒の内面との間に介装する
減圧装置において、回転軸２の外周に摺接面６ａ
を上記流体の上流側に向けた摺接部材６を固着し
、また外筒１の内面に、上記回転軸２側の摺接部
材６の摺接面６ａに対向する摺接面９ａを有する
摺接部材９を軸方向に摺動自在に、かつ摺接方向
にばね付勢して設け、この両摺接面の一方に半径
方向内側と外側とを連通する溝１１を設けたこと
を特徴とするダウンホールモータの減圧装置。 A rotating shaft 2 supported by an outer cylinder 1 is rotationally driven by a turbine section driven by a fluid such as high-pressure muddy water, and the high-pressure fluid from this turbine section is discharged from the shaft center of the rotating shaft 2. In a pressure reducing device interposed between the outer circumference of the rotary shaft 2 and the inner surface of the outer cylinder of the downhole motor in which the flow is caused to flow through the hole 3 and the outer circumference of the rotary shaft 2, a sliding surface is provided on the outer circumference of the rotary shaft 2. 6a
A sliding contact member 6 is fixed with the sliding contact member 6 facing upstream of the fluid, and a sliding contact surface 9a is provided on the inner surface of the outer cylinder 1 opposite to the sliding contact surface 6a of the sliding contact member 6 on the rotating shaft 2 side. The contact member 9 is provided so as to be freely slidable in the axial direction and biased by a spring in the sliding contact direction, and a groove 11 is provided in one of the sliding contact surfaces to communicate the inside and outside in the radial direction. Downhole motor pressure reducing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2745386U JPS62143788U (en) | 1986-02-28 | 1986-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2745386U JPS62143788U (en) | 1986-02-28 | 1986-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62143788U true JPS62143788U (en) | 1987-09-10 |
Family
ID=30829495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2745386U Pending JPS62143788U (en) | 1986-02-28 | 1986-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62143788U (en) |
-
1986
- 1986-02-28 JP JP2745386U patent/JPS62143788U/ja active Pending