JPS6316928Y2 - - Google Patents
Info
- Publication number
- JPS6316928Y2 JPS6316928Y2 JP1983166788U JP16678883U JPS6316928Y2 JP S6316928 Y2 JPS6316928 Y2 JP S6316928Y2 JP 1983166788 U JP1983166788 U JP 1983166788U JP 16678883 U JP16678883 U JP 16678883U JP S6316928 Y2 JPS6316928 Y2 JP S6316928Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- sliding
- groove
- grooves
- cross
- 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.)
- Expired
Links
- 239000010687 lubricating oil Substances 0.000 claims description 10
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Actuator (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は主として空気圧用シリンダ装置の摺動
用シールに関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention mainly relates to a sliding seal for a pneumatic cylinder device.
（従来技術）
従来の摺動用シールには、シールの摺接面に直
接潤滑油を溜めることができるような加工は施さ
れていない。従つて摺動抵抗等によるステイツク
スリツプ現象が生じ易い。(Prior Art) Conventional sliding seals are not processed to allow lubricating oil to be stored directly on the sliding surface of the seal. Therefore, the stick slip phenomenon due to sliding resistance etc. is likely to occur.
ところが産業用ロボツト等に空気圧シリンダ装
置が多数使用されるようになつた今日において
は、シリンダ装置の正確な位置制御を行えるよう
にするために、ステイツクスリツプ現象を解消す
ることが要求されている。 However, today, as many pneumatic cylinder devices are used in industrial robots and the like, it is required to eliminate the stick slip phenomenon in order to be able to accurately control the position of the cylinder device. .
（考案の目的）
本考案は、摺動用シールの摺接面に潤滑油を直
接保持できるようにすることにより、潤滑効果を
向上させ、ステイツクスリツプ現象を防止すると
を目的としている。(Purpose of the invention) The object of the invention is to improve the lubrication effect and prevent the stick slip phenomenon by making it possible to hold lubricating oil directly on the sliding surface of a sliding seal.
（考案の構成）
軸方向摺動自在に嵌合する軸部材とシリンダ部
材のいずれか一方の部材のシール溝に嵌着される
摺動用シールにおいて、他方の部材に摺接するシ
ール摺接面に、微小断面積の多数の筋状溝を網目
状に形成し、筋状溝内に潤滑油を保持するように
している。(Structure of the invention) In a sliding seal that is fitted into a seal groove of either a shaft member or a cylinder member that are slidably fitted in the axial direction, the seal sliding contact surface that slides on the other member is provided with: A large number of striped grooves with a minute cross-sectional area are formed in a mesh shape, and lubricating oil is held within the striped grooves.
（実施例）
空気圧シリンダ装置の縦断上半分図を示す第１
図において、１はシリンダ部材、２はピストン、
３はロツドであつて、ピストン２とロツド３は１
体（又は一体的）に形成され、軸部材４として構
成されている。軸部材４は、例えば４つの第１、
第２、第３、第４摺動用シール６，７，８，９を
介して軸方向摺動自在にシリンダ部材１に嵌合し
ており、ピストン２によつてシリンダ部材１内
を、第１空気室１１と第２空気室１２に区画して
いる。４つのシール６，７，８，９はゴム製（又
は合成樹脂製）のＵ形パツキンであつて、第１、
第４シール６，９はシリンダ部材１の両端内周面
のシール溝１４，１７に嵌着され、ロツド３の外
周面に摺接している。第２、第３シール７，８は
ピストン２の外周面のシール溝１５，１６に嵌着
され、シリンダ部材１の内周面に摺接している。(Example) The first diagram showing the upper half view of the vertical section of the pneumatic cylinder device.
In the figure, 1 is a cylinder member, 2 is a piston,
3 is a rod, and piston 2 and rod 3 are 1
It is formed as a body (or integrally) and configured as a shaft member 4. The shaft member 4 includes, for example, four first,
It is fitted into the cylinder member 1 slidably in the axial direction via second, third, and fourth sliding seals 6, 7, 8, and 9, and the inside of the cylinder member 1 is moved by the piston 2 into the cylinder member 1. It is divided into an air chamber 11 and a second air chamber 12. The four seals 6, 7, 8, and 9 are U-shaped packings made of rubber (or synthetic resin), and the first,
The fourth seals 6 and 9 are fitted into seal grooves 14 and 17 on the inner peripheral surface of both ends of the cylinder member 1, and are in sliding contact with the outer peripheral surface of the rod 3. The second and third seals 7 and 8 are fitted into seal grooves 15 and 16 on the outer peripheral surface of the piston 2, and are in sliding contact with the inner peripheral surface of the cylinder member 1.
第１、第２シール６，７はそれぞれ第１空気室
１１に向つて開くような姿勢で配置され、第１空
気室１１から空気が漏れないように作用し、第
３、第４シール８，９はそれぞれ第２空気室１２
に向つて開くような姿勢で配置され、第２空気室
１２から空気が漏れないように作用する。 The first and second seals 6 and 7 are arranged in such a manner that they open toward the first air chamber 11, and act to prevent air from leaking from the first air chamber 11, and the third and fourth seals 8, 9 are the second air chambers 12, respectively.
The second air chamber 12 is arranged in such a manner that it opens toward the air chamber 12, and acts to prevent air from leaking from the second air chamber 12.
第１、第２空気室１１，１２はそれぞれ気路１
８，１９を介して空気圧切換弁（図示せず）に連
通している。即ち第１空気室１１に空気を圧入す
ることにより軸部材４を矢印Ｆ方向へ移動させ、
第２空気室１２に空気を圧入することにより軸部
材４を逆矢印Ｆ方向へ移動させる。 The first and second air chambers 11 and 12 are air passages 1 and 12, respectively.
It communicates with a pneumatic switching valve (not shown) via 8 and 19. That is, by pressurizing air into the first air chamber 11, the shaft member 4 is moved in the direction of arrow F,
By pressurizing air into the second air chamber 12, the shaft member 4 is moved in the direction of the reverse arrow F.
第２図は自然状態（非圧縮状態）における第１
シール６の断面拡大部分図を示しており、この第
２図において、第１シール６の内周面にはロツド
３の中心側に突出する環状リツプ部２０が形成さ
れており、シール装着時には、リツプ部２０の表
面を含む軸方向幅Ｌの範囲の面がロツド３の外周
面に圧接し、摺接面２１となる。摺接面２１の軸
方向幅Ｌは例えば２mm位である。摺接面２１には
多数の微小断面積の筋状溝２３が、摺接面２１の
全幅Ｌにわたつて網目状に形成されている。溝２
３は上記摺接面２１よりも逆矢印Ｆ側（図面右
側）の面にも形成されている。互いに交差する溝
２３間の角度θは90゜である。また軸部材４の中
心線と直角な切断線Ｐに対して各溝２３はそれぞ
れ45゜の角度（θ1，θ2）で傾斜している。 Figure 2 shows the first state in the natural state (uncompressed state).
This is an enlarged partial cross-sectional view of the seal 6. In this figure, the inner peripheral surface of the first seal 6 is formed with an annular lip portion 20 that protrudes toward the center of the rod 3, and when the seal is installed, A surface within an axial width L including the surface of the lip portion 20 comes into pressure contact with the outer circumferential surface of the rod 3, forming a sliding surface 21. The axial width L of the sliding surface 21 is, for example, about 2 mm. A large number of striped grooves 23 having a small cross-sectional area are formed in the sliding surface 21 in a mesh shape over the entire width L of the sliding surface 21 . Groove 2
3 is also formed on a surface closer to the reverse arrow F (to the right in the drawing) than the sliding surface 21. The angle θ between the grooves 23 that intersect with each other is 90°. Further, each groove 23 is inclined at an angle of 45 degrees (θ 1 , θ 2 ) with respect to a cutting line P perpendicular to the center line of the shaft member 4.
溝２３の断面形状を示す第３図において、溝幅
Ｗは0.1〜0.2mm位であり、深さＤは0.1〜0.2mm位
である。溝２３の断面形状は概ね半円形状であ
る。また溝２３間の距離Ｒは約0.5mmである。 In FIG. 3 showing the cross-sectional shape of the groove 23, the groove width W is about 0.1 to 0.2 mm, and the depth D is about 0.1 to 0.2 mm. The cross-sectional shape of the groove 23 is approximately semicircular. Further, the distance R between the grooves 23 is approximately 0.5 mm.
第２図の例では、溝２３がリツプ部２０の環状
頂部２０ａを横切るため、シール性の低下が懸念
されるが、装着時においてはシールの環状頂部２
０ａが押しつぶされるため、溝２３は変形し、こ
のため、シール性が大きくそこなわれることはな
く、上記程度の溝寸法であれば実用上支障はな
い。なお溝２３が環状頂部２０ａを横切らないよ
うに設けても良く、こうすれば上記のようなシー
ル性の低下の心配はない。 In the example shown in FIG. 2, since the groove 23 crosses the annular top 20a of the lip portion 20, there is a concern that the sealing performance may deteriorate.
Since Oa is crushed, the groove 23 is deformed, so that the sealing performance is not significantly impaired, and there is no problem in practical use as long as the groove size is within the above range. Note that the groove 23 may be provided so as not to cross the annular top portion 20a, and in this case, there is no concern that the sealing performance will deteriorate as described above.
第１図の第４シール９には、第１シール６と同
様に内周側の摺接面に多数の筋状溝が網目状に形
成されている。また第２、第３シール７，８には
シリンダ部材１の内周面に圧接する外周側摺接面
に、多数の筋状溝２３が網目状に形成されてい
る。 Similar to the first seal 6, the fourth seal 9 in FIG. 1 has a large number of streak-like grooves formed in a mesh shape on the sliding surface on the inner peripheral side. In addition, a large number of striped grooves 23 are formed in a mesh shape on the outer circumferential sliding surfaces of the second and third seals 7 and 8 that come into pressure contact with the inner circumferential surface of the cylinder member 1.
第１、第２空気室１１，１２に送り込まれる空
気には潤滑油ミストが含されており、ロツド３の
外周面及びシリンダ部材１の内周面に付着する上
記潤滑油の一部を、各シール６，７，８，９の多
数の溝２３内に溜めるようになつている。 The air sent into the first and second air chambers 11 and 12 contains lubricating oil mist, and a portion of the lubricating oil adhering to the outer circumferential surface of the rod 3 and the inner circumferential surface of the cylinder member 1 is removed from each air chamber. It is adapted to be stored in a number of grooves 23 in the seals 6, 7, 8, 9.
なおロツド３等の表面に予めグリース油等を塗
つておき、グリース油を潤滑油として溝２３内に
溜めるようにしておいてもよい。 Note that the surface of the rod 3 and the like may be coated with grease or the like in advance, and the grease may be stored in the groove 23 as a lubricating oil.
（作用）
第１空気室１１に空気を圧入することにより軸
部材４は矢印Ｆ方向へ移動し、反対に第２空気室
１２に空気を圧入することにより軸部材４は逆矢
印Ｆ方向へ移動する。このような移動行程におい
て、各シール６，７，８，９の摺接面２１等と、
ロツド３の外周面及びシリンダ部材１の内周面と
の間は、溝２３の潤滑油により充分に潤滑され、
軸部材４はシリンダ部材１に対して円滑に動く。
即ち軸部材４はステイツクスリツプ現象を生じる
ことなく、円滑に動く。(Function) By pressurizing air into the first air chamber 11, the shaft member 4 moves in the direction of arrow F, and conversely, by pressuring air into the second air chamber 12, the shaft member 4 moves in the direction of arrow F. do. In such a movement process, the sliding surfaces 21, etc. of each seal 6, 7, 8, 9,
The space between the outer peripheral surface of the rod 3 and the inner peripheral surface of the cylinder member 1 is sufficiently lubricated by the lubricating oil in the groove 23.
The shaft member 4 moves smoothly relative to the cylinder member 1.
That is, the shaft member 4 moves smoothly without causing the stick slip phenomenon.
（別の実施例）
(1) 第４図に示すように溝２３の断面形状を３角
形状にする。(Another Example) (1) As shown in FIG. 4, the cross-sectional shape of the groove 23 is triangular.
(2) 第５図に示すように断面形状Ｘ形の摺動用シ
ール７に本考案を適用する。この場合は１対の
リツプ部３０及びその周辺に、それぞれ多数の
筋状溝２３を網目状に形成する。(2) The present invention is applied to a sliding seal 7 having an X-shaped cross section as shown in FIG. In this case, a large number of striped grooves 23 are formed in a mesh shape in each of the pair of lip portions 30 and the periphery thereof.
(3) 油圧シリンダに本考案を適用する。(3) Apply the present invention to hydraulic cylinders.
(4) 第６図に示すように、環状頂部２０ａよりも
逆矢印Ｆ側（図面右側）だけに網状に溝２３を
形成し、頂部２０ａよりも矢印Ｆ側の摺接面２
１部分には溝２３を形成しない。このようにす
ると、シール性を極めて高く維持できる。(4) As shown in FIG. 6, a net-shaped groove 23 is formed only on the opposite arrow F side (right side in the drawing) from the annular top 20a, and the sliding surface 23 is formed on the arrow F side from the top 20a.
The groove 23 is not formed in one portion. In this way, extremely high sealing performance can be maintained.
（考案の効果）
(1) シール摺接面２１に多数の微小断面積の筋状
溝２３を網目状に形成し、筋状溝２３内に潤滑
油を保持するようにしているので、摺接面２１
の潤滑効果が向上し、ステイツクスリツプ現象
を防止することができる。(Effects of the invention) (1) A large number of striped grooves 23 with a small cross-sectional area are formed in a mesh shape on the seal sliding surface 21, and the lubricating oil is retained in the striped grooves 23, so that the sliding contact is prevented. Face 21
This improves the lubrication effect and prevents the stick slip phenomenon.
(2) 従来のシール製造用金型を少し修正、例えば
溝形成用の筋状突部を追加するだけで、本考案
によるシールを製造することができる。即ち製
造が容易である。(2) The seal according to the present invention can be manufactured by slightly modifying a conventional seal manufacturing mold, for example by adding a striped protrusion for forming grooves. That is, it is easy to manufacture.
(3) 筋状溝２３を網目状に形成し、かつ摺接面２
１の軸方向全幅Ｌにわたつて形成すると、摺接
面２１の略全域にわたつて潤滑油が充分に供給
されることになり、潤滑効果が極めて大きい。(3) The striped grooves 23 are formed in a mesh shape, and the sliding surface 2
When formed over the entire axial width L of 1, lubricating oil is sufficiently supplied over substantially the entire sliding surface 21, and the lubrication effect is extremely large.
第１図は本考案による摺動用シールを備えた空
気圧シリンダ装置の縦断面上半分図、第２図は第
１図のシールの拡大部分図、第３図は第２図の
−断面拡大部分図、第４図は溝の断面形状の変
形例を示す断面図（第２図の−断面相当図）、
第５図は断面形状Ｘ形のシールに本考案を適用し
た例を示す縦断面拡大部分図、第６図はさらに別
の実施例を示す縦断面拡大部分図である。
１……シリンダ部材、４……軸部材、６，７，
７′，８，９……摺動用シール、１４，１５，１
６，１７……シール溝、２１……シール摺接面、
２３……筋状溝。
Fig. 1 is a vertical cross-sectional top half view of a pneumatic cylinder device equipped with a sliding seal according to the present invention, Fig. 2 is an enlarged partial view of the seal in Fig. 1, and Fig. 3 is an enlarged partial cross-sectional view of Fig. 2. , FIG. 4 is a cross-sectional view showing a modification of the cross-sectional shape of the groove (a view corresponding to the - cross-section in FIG. 2),
FIG. 5 is an enlarged vertical cross-sectional view showing an example in which the present invention is applied to a seal having an X-shaped cross-section, and FIG. 6 is an enlarged vertical cross-sectional view showing still another embodiment. 1... Cylinder member, 4... Shaft member, 6, 7,
7', 8, 9...Sliding seal, 14, 15, 1
6, 17... Seal groove, 21... Seal sliding contact surface,
23...Striated groove.
Claims (1)
材のいずれか一方の部材のシール溝に嵌着される
摺動用シールにおいて、他方の部材に摺接するシ
ール摺接面に、微小断面積の多数の筋状溝を網目
状に形成し、筋状溝内に潤滑油を保持するように
したことを特徴とするノンステイツクスリツプ摺
動用シール。 In a sliding seal that is fitted into a seal groove of either a shaft member or a cylinder member that are slidably fitted in the axial direction, the seal sliding surface that slides on the other member has a large number of micro cross-sectional areas. 1. A non-stick slip sliding seal characterized in that the striped grooves are formed in a mesh shape and lubricating oil is retained within the striped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983166788U JPS6073971U (en) | 1983-10-26 | 1983-10-26 | Non-Static Slip Sliding Seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983166788U JPS6073971U (en) | 1983-10-26 | 1983-10-26 | Non-Static Slip Sliding Seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073971U JPS6073971U (en) | 1985-05-24 |
| JPS6316928Y2 true JPS6316928Y2 (en) | 1988-05-13 |
Family
ID=30365065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983166788U Granted JPS6073971U (en) | 1983-10-26 | 1983-10-26 | Non-Static Slip Sliding Seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6073971U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5390914B2 (en) * | 2009-04-09 | 2014-01-15 | トヨタ自動車株式会社 | Rush adjuster |
| JP5384689B2 (en) * | 2012-04-12 | 2014-01-08 | トヨタ自動車株式会社 | Seal structure between the first and second parts |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920620U (en) * | 1972-05-26 | 1974-02-21 | ||
| US3882068A (en) * | 1972-12-01 | 1975-05-06 | Johns Manville | Sizing composition for glass fibers of polypropylene emulsion and silane coupling agent |
-
1983
- 1983-10-26 JP JP1983166788U patent/JPS6073971U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920620U (en) * | 1972-05-26 | 1974-02-21 | ||
| US3882068A (en) * | 1972-12-01 | 1975-05-06 | Johns Manville | Sizing composition for glass fibers of polypropylene emulsion and silane coupling agent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6073971U (en) | 1985-05-24 |
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