JPH0436151U - - Google Patents
Info
- Publication number
- JPH0436151U JPH0436151U JP7857990U JP7857990U JPH0436151U JP H0436151 U JPH0436151 U JP H0436151U JP 7857990 U JP7857990 U JP 7857990U JP 7857990 U JP7857990 U JP 7857990U JP H0436151 U JPH0436151 U JP H0436151U
- Authority
- JP
- Japan
- Prior art keywords
- shaft member
- threaded portion
- hollow shaft
- male threaded
- lubricating oil
- 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
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
Landscapes
- Transmission Devices (AREA)
Description
第１図は本考案を適用したリニアアクチユエー
タの全体構成を示す概略縦断面図、第２図は第１
図のねじ送り機構部における潤滑油保持部を拡大
して示す部分拡大断面図、第３図は従来における
問題点を説明するためのねじ送り機構部の部分拡
大断面図である。
符号の説明、１……リニアアクチユエータ、４
……ねじ送り機構部、５……軸部材、５２……雄
ねじ部、６……中空軸部材、６１……雌ねじ部、
６２……軸端開口、８……潤滑油保持部、８１…
…潤滑油保持部の内周面。
Figure 1 is a schematic vertical cross-sectional view showing the overall configuration of a linear actuator to which the present invention is applied, and Figure 2 is a cross-sectional view of the linear actuator to which the present invention is applied.
FIG. 3 is a partially enlarged cross-sectional view showing a lubricating oil retaining portion in the screw feed mechanism shown in the figure, and FIG. 3 is a partially enlarged cross-sectional view of the screw feed mechanism for explaining problems in the conventional technology. Explanation of symbols, 1...Linear actuator, 4
...Screw feed mechanism part, 5...Shaft member, 52...Male thread part, 6...Hollow shaft member, 61...Female thread part,
62... Shaft end opening, 8... Lubricating oil holding part, 81...
...Inner peripheral surface of the lubricating oil holding part.
Claims (1)
雄ねじ部に螺合した雌ねじ部が内周面に形成され
た中空軸部材とを、これらの軸線を中心として相
対回転させることにより、これらの軸部材および
中空軸部材との間に軸線方向の相対直線移動を発
生させるねじ送り機構を有するリニアアクチユエ
ータにおいて、前記中空軸部材の軸端開口には、
多孔質素材からなる潤滑油保持部が取付けられて
おり、この潤滑油保持部の一部分は、前記軸部材
の雄ねじ部に接触した状態となつていることを特
徴とするリニアアクチユエータのねじ送り機構に
おけるねじ部潤滑構造。 By relatively rotating a shaft member having a male threaded portion formed on its outer peripheral surface and a hollow shaft member having a female threaded portion screwed onto the male threaded portion formed on its inner peripheral surface about their axes, these In a linear actuator having a screw feeding mechanism that generates relative linear movement in the axial direction between a shaft member and a hollow shaft member, a shaft end opening of the hollow shaft member includes:
A screw feed for a linear actuator, characterized in that a lubricating oil holding part made of a porous material is attached, and a part of this lubricating oil holding part is in contact with the male threaded part of the shaft member. Lubricating structure for threaded parts in mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7857990U JPH0436151U (en) | 1990-07-24 | 1990-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7857990U JPH0436151U (en) | 1990-07-24 | 1990-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0436151U true JPH0436151U (en) | 1992-03-26 |
Family
ID=31621981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7857990U Pending JPH0436151U (en) | 1990-07-24 | 1990-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436151U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123999A (en) * | 1984-07-11 | 1986-02-01 | 高砂熱学工業株式会社 | Exhaust facility for disusing work of nucler reactor |
| JPS62169988A (en) * | 1986-12-22 | 1987-07-27 | 株式会社日立製作所 | Freezing refrigerator |
-
1990
- 1990-07-24 JP JP7857990U patent/JPH0436151U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123999A (en) * | 1984-07-11 | 1986-02-01 | 高砂熱学工業株式会社 | Exhaust facility for disusing work of nucler reactor |
| JPS62169988A (en) * | 1986-12-22 | 1987-07-27 | 株式会社日立製作所 | Freezing refrigerator |