JPH0229303U - - Google Patents
Info
- Publication number
- JPH0229303U JPH0229303U JP10628588U JP10628588U JPH0229303U JP H0229303 U JPH0229303 U JP H0229303U JP 10628588 U JP10628588 U JP 10628588U JP 10628588 U JP10628588 U JP 10628588U JP H0229303 U JPH0229303 U JP H0229303U
- Authority
- JP
- Japan
- Prior art keywords
- side chamber
- space
- rod
- bottom side
- 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.)
- Granted
Links
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston
Description
第１図及び第２図は本考案の第１の実施例によ
る単動型油圧シリンダ装置の断面図、第３図及び
第４図は本考案の第２の実施例による単動型油圧
シリンダ装置の断面図、第５図及び第６図は本考
案の第３の実施例による単動型油圧シリンダ装置
の断面図、第７図及び第８図は従来例による単動
型油圧シリンダ装置の断面図である。
１……シリンダ、３……ピストン、５……ロツ
ド、９……ロツド側室、１１……ボトム側室、１
３……第１の空間、１５……第２の空間、１７…
…流路、１９……スプール、２１，２３……受圧
部、２５……背圧導入流路、２７……スプリング
、２９……漏洩油導入流路、３１……漏洩油排出
流路、３３……逆止弁。
1 and 2 are cross-sectional views of a single-acting hydraulic cylinder device according to a first embodiment of the present invention, and FIGS. 3 and 4 are sectional views of a single-acting hydraulic cylinder device according to a second embodiment of the present invention. FIGS. 5 and 6 are cross-sectional views of a single-acting hydraulic cylinder device according to a third embodiment of the present invention, and FIGS. 7 and 8 are cross-sectional views of a conventional single-acting hydraulic cylinder device. It is a diagram. 1... Cylinder, 3... Piston, 5... Rod, 9... Rod side chamber, 11... Bottom side chamber, 1
3...first space, 15...second space, 17...
... Channel, 19... Spool, 21, 23... Pressure receiving part, 25... Back pressure introduction channel, 27... Spring, 29... Leak oil introduction channel, 31... Leak oil discharge channel, 33 ……non-return valve.
Claims (1)
用されピストンを備えると共にこのピストンによ
りシリンダ内をロツド側室およびボトム側室とに
分割するロツドと、上記ロツドに形成された背圧
空間と、この背圧空間の下方位置のロツドに形成
され背圧空間と連通すると共にボトム側室と連通
する漏洩油溜め空間と、上記背圧空間および漏洩
油溜め空間内に往復動可能に収用されると共に背
圧空間及び漏洩油溜め空間内にそれぞれ受圧部を
備えたスプールと上記スプールをボトム側室側に
付勢しておく付勢機構と、上記漏洩油溜め空間と
ロツド側室とを連通しロツド側室内に漏洩した油
を漏洩油溜め空間内に導入する漏洩油導入路と、
上記スプールに形成された漏洩油溜め空間とボト
ム側室とを連通し漏洩油溜め空間内に溜つた漏洩
油をボトム側室内に排出する漏洩油排出路と、こ
の漏洩油排出路に介装され漏洩油溜め空間からボ
トム側室への流通のみ許容しロツドが下降してス
プールがシリンダ内底面に当接して相対的に上昇
し背圧空間が圧縮されて予め設定された圧力まで
昇圧することにより開弁せられ漏洩油溜め空間内
に溜つた漏洩油をボトム側室内に排出する逆止弁
とを具備したことを特徴とする単動型油圧シリン
ダ装置。 A cylinder, a rod that is reciprocably housed within the cylinder and includes a piston and that divides the inside of the cylinder into a rod side chamber and a bottom side chamber, a back pressure space formed in the rod, and this back pressure space. A leakage oil sump space formed in the rod at a lower position and communicating with the back pressure space and the bottom side chamber; A spool each having a pressure receiving part in the oil sump space, a biasing mechanism that biases the spool toward the bottom side chamber, and a connecting mechanism between the leaked oil sump space and the rod side chamber to remove oil leaked into the rod side chamber. a leakage oil introduction path introduced into the leakage oil sump space;
A leakage oil discharge passage that connects the leakage oil reservoir space formed in the spool with the bottom side chamber and discharges the leaked oil accumulated in the leakage oil reservoir space into the bottom side chamber; Only allowing flow from the oil sump space to the bottom side chamber, the rod descends and the spool comes into contact with the inner bottom of the cylinder and rises relatively, compressing the back pressure space and raising the pressure to a preset pressure, which opens the valve. A single-acting hydraulic cylinder device characterized by comprising a check valve for discharging leaked oil accumulated in a leakage oil storage space into a bottom side chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10628588U JPH0710086Y2 (en) | 1988-08-11 | 1988-08-11 | Single-acting hydraulic cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10628588U JPH0710086Y2 (en) | 1988-08-11 | 1988-08-11 | Single-acting hydraulic cylinder device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0229303U true JPH0229303U (en) | 1990-02-26 |
| JPH0710086Y2 JPH0710086Y2 (en) | 1995-03-08 |
Family
ID=31339653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10628588U Expired - Lifetime JPH0710086Y2 (en) | 1988-08-11 | 1988-08-11 | Single-acting hydraulic cylinder device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710086Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5727648B1 (en) * | 2014-02-27 | 2015-06-03 | エネスジー、カンパニー、リミテッドＥｎｅｓｇ Ｃｏ．，Ｌｔｄ． | Hydraulic actuator assembly for power plant |
| JP5727646B1 (en) * | 2014-04-01 | 2015-06-03 | エネスジー、カンパニー、リミテッドＥｎｅｓｇ Ｃｏ．，Ｌｔｄ． | Air discharge device for hydraulic actuator and hydraulic actuator for power plant having the same |
| JP5727647B1 (en) * | 2014-02-27 | 2015-06-03 | エネスジー、カンパニー、リミテッドＥｎｅｓｇ Ｃｏ．，Ｌｔｄ． | Hydraulic actuator assembly for power plant |
-
1988
- 1988-08-11 JP JP10628588U patent/JPH0710086Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5727648B1 (en) * | 2014-02-27 | 2015-06-03 | エネスジー、カンパニー、リミテッドＥｎｅｓｇ Ｃｏ．，Ｌｔｄ． | Hydraulic actuator assembly for power plant |
| JP5727647B1 (en) * | 2014-02-27 | 2015-06-03 | エネスジー、カンパニー、リミテッドＥｎｅｓｇ Ｃｏ．，Ｌｔｄ． | Hydraulic actuator assembly for power plant |
| JP5727646B1 (en) * | 2014-04-01 | 2015-06-03 | エネスジー、カンパニー、リミテッドＥｎｅｓｇ Ｃｏ．，Ｌｔｄ． | Air discharge device for hydraulic actuator and hydraulic actuator for power plant having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710086Y2 (en) | 1995-03-08 |
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