JPH0219901U - - Google Patents
Info
- Publication number
- JPH0219901U JPH0219901U JP9330488U JP9330488U JPH0219901U JP H0219901 U JPH0219901 U JP H0219901U JP 9330488 U JP9330488 U JP 9330488U JP 9330488 U JP9330488 U JP 9330488U JP H0219901 U JPH0219901 U JP H0219901U
- Authority
- JP
- Japan
- Prior art keywords
- poppet
- rate control
- flow rate
- valve device
- control spool
- 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
Description
第１図は本考案の一実施例における弁装置を示
す断面図、第２図は本考案の別の実施例の弁装置
を示す断面図、第３図は従来例のバイパス弁を示
す断面図である。
１２……弁装置、１３……切換弁、１４……弁
体、１７……油圧シリンダ、２１，５１……シー
ト、２２，５２……スリーブ、２３……貫通穴、
２４，５４……キヤツプ、２８，５８……圧力補
償スプール、３１，６１……ポペツト、３３，６
３……バネ、３４，６４……背室、３５〜３７，
６６……小穴、１０４……切換弁、１０６……バ
イパス弁、１０７……油圧モータ、１１０……室
、１１４，１３４……ポペツト、１１５，１３５
……ミゾ、１１７，１３７……スプリング、１１
８，１３８……ピストン、１１９，１３９……管
路、１２３，１４３……小穴。
FIG. 1 is a cross-sectional view showing a valve device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a valve device according to another embodiment of the present invention, and FIG. 3 is a cross-sectional view showing a conventional bypass valve. It is. 12... Valve device, 13... Switching valve, 14... Valve body, 17... Hydraulic cylinder, 21, 51... Seat, 22, 52... Sleeve, 23... Through hole,
24,54...Cap, 28,58...Pressure compensating spool, 31,61...Poppet, 33,6
3... Spring, 34, 64... Back chamber, 35-37,
66...Small hole, 104...Switching valve, 106...Bypass valve, 107...Hydraulic motor, 110...Chamber, 114,134...Poppet, 115,135
... Groove, 117, 137 ... Spring, 11
8,138...Piston, 119,139...Pipe line, 123,143...Small hole.
Claims (1)
クチユエータへの圧油の流入・排出を切換える切
換弁との間の油路間にアクチユエータの両ポート
を接続する連通路を設け、該連通路上には一対の
ポペツトを互いに対抗させ、かつ、いずれか一方
のポペツトがシートした状態では前記連通路を遮
断するように配設すると共に、各々のポペツトの
背部には背室を設け、これら背室には圧力補償流
量制御スプールを介して圧油を流入・排出するよ
うにした弁装置。 (2) 実用新案登録請求の範囲第１項の記載にお
いて、前記ポペツト背部に設けた背室には、流入
を許容し、流出を阻止する向きに設けたチエツク
弁を介して圧油を流入させ、かつ、前記背室から
は、圧力補償流量制御スプールを介して圧油を排
出するようにした弁装置。 (3) 前記圧力補償流量制御スプールをポペツト
内に設けた実用新案登録請求の範囲第１項記載の
弁装置。 (4) 前記圧力補償流量制御スプールをポペツト
内に設けた実用新案登録請求の範囲第２項記載の
弁装置。[Claims for Utility Model Registration] (1) A communication path connecting both ports of the actuator is provided between the oil path between the actuator and a switching valve that switches the inflow and discharge of pressure oil from the hydraulic pump to the actuator. A pair of poppets are arranged on the communicating path so as to oppose each other, and when one of the poppets is in a seated state, the communicating path is blocked, and a back chamber is provided at the back of each poppet. , a valve device that allows pressure oil to flow in and out of these back chambers via a pressure compensation flow rate control spool. (2) In the description of claim 1 of the utility model registration claim, pressurized oil is allowed to flow into the back chamber provided at the back of the poppet through a check valve provided in a direction that allows inflow and prevents outflow. and a valve device configured to discharge pressure oil from the back chamber via a pressure compensation flow rate control spool. (3) The valve device according to claim 1, wherein the pressure compensating flow rate control spool is provided in a poppet. (4) The valve device according to claim 2, wherein the pressure compensation flow rate control spool is provided in a poppet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9330488U JP2558115Y2 (en) | 1988-07-14 | 1988-07-14 | Valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9330488U JP2558115Y2 (en) | 1988-07-14 | 1988-07-14 | Valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0219901U true JPH0219901U (en) | 1990-02-09 |
| JP2558115Y2 JP2558115Y2 (en) | 1997-12-17 |
Family
ID=31317750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9330488U Expired - Lifetime JP2558115Y2 (en) | 1988-07-14 | 1988-07-14 | Valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2558115Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084879A (en) * | 2002-08-28 | 2004-03-18 | Shin Caterpillar Mitsubishi Ltd | Control valve device |
| CN109826839A (en) * | 2019-03-29 | 2019-05-31 | 潍柴动力股份有限公司 | A kind of rotary motor counnter attack rotary valve and engineering machinery |
| CN111336291A (en) * | 2018-12-19 | 2020-06-26 | 株式会社斗山 | Reverse rotation preventing valve of rotary motor for engineering equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6931308B2 (en) | 2017-09-26 | 2021-09-01 | 川崎重工業株式会社 | Anti-sway device |
-
1988
- 1988-07-14 JP JP9330488U patent/JP2558115Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084879A (en) * | 2002-08-28 | 2004-03-18 | Shin Caterpillar Mitsubishi Ltd | Control valve device |
| CN111336291A (en) * | 2018-12-19 | 2020-06-26 | 株式会社斗山 | Reverse rotation preventing valve of rotary motor for engineering equipment |
| CN111336291B (en) * | 2018-12-19 | 2022-03-29 | 股份公司摩拓乐 | Reverse rotation preventing valve of rotary motor for engineering equipment |
| CN109826839A (en) * | 2019-03-29 | 2019-05-31 | 潍柴动力股份有限公司 | A kind of rotary motor counnter attack rotary valve and engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2558115Y2 (en) | 1997-12-17 |
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