JPH0411977U - - Google Patents

Info

Publication number
JPH0411977U
JPH0411977U JP5245290U JP5245290U JPH0411977U JP H0411977 U JPH0411977 U JP H0411977U JP 5245290 U JP5245290 U JP 5245290U JP 5245290 U JP5245290 U JP 5245290U JP H0411977 U JPH0411977 U JP H0411977U
Authority
JP
Japan
Prior art keywords
pressure compensation
valve
pressure
spring
pilot
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
Application number
JP5245290U
Other languages
Japanese (ja)
Other versions
JP2532170Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990052452U priority Critical patent/JP2532170Y2/en
Publication of JPH0411977U publication Critical patent/JPH0411977U/ja
Application granted granted Critical
Publication of JP2532170Y2 publication Critical patent/JP2532170Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Types And Forms Of Lifts (AREA)
  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案による圧力補償弁の閉止状態
を示す断面図、第２図は同じくその開放状態を示
す断面図、第３図はこの考案による補償弁を用い
た圧力補償回路の作動前の停止状態を示す油圧回
路図、第４図は同じくその作動中の状態を示す油
圧回路図、第５図は同じくその作動直後の流量と
時間との関係を示す線図、第６図は従来の圧力補
償弁の開放状態を示す断面図、第７図は同じくそ
の閉止状態を示す断面図、第８図は従来の圧力補
償弁を用いた圧力補償回路の作動前の停止状態を
示す油圧回路図、第９図は同じくその作動直後の
状態を示す油圧回路図、第１０図は同じくその作
動直後の流量と時間との関係を示す線図である。 １……圧力補償弁、２……油圧ポンプ、４……
負荷シリンダ、５……電磁切換弁、６……絞り弁
、７……油タンク、１１……ボデイ、１２……リ
テイナ、１３……スプール、１５……スプリング
、１６……Ｏリング、１７……バツクアツプリン
グ、１８……スプリング室、２０……ブロツク。 Fig. 1 is a sectional view showing the pressure compensation valve according to this invention in the closed state, Fig. 2 is a sectional view showing the same in the open state, and Fig. 3 shows the pressure compensation circuit using the compensation valve according to this invention before operation. Fig. 4 is a hydraulic circuit diagram showing the stopped state, Fig. 4 is a hydraulic circuit diagram showing the operating state, Fig. 5 is a diagram showing the relationship between flow rate and time immediately after the operation, and Fig. 6 is the conventional hydraulic circuit diagram. FIG. 7 is a cross-sectional view showing the pressure compensation valve in the open state, FIG. 7 is a cross-sectional view showing the closed state, and FIG. 8 is a hydraulic circuit diagram showing the stopped state before activation of the pressure compensation circuit using the conventional pressure compensation valve. , FIG. 9 is a hydraulic circuit diagram showing the state immediately after the operation, and FIG. 10 is a diagram showing the relationship between flow rate and time immediately after the operation. 1...Pressure compensation valve, 2...Hydraulic pump, 4...
Load cylinder, 5... Solenoid switching valve, 6... Throttle valve, 7... Oil tank, 11... Body, 12... Retainer, 13... Spool, 15... Spring, 16... O-ring, 17... ...Backup spring, 18...Spring room, 20...Block.

Claims (1)

【実用新案登録請求の範囲】 １ 一端を密閉されたボデイ内を軸線方向に摺動
するスプールを、負荷圧力からセンシングポート
に導入されるパイロツト圧により、スプリングの
付勢力に抗して閉止位置に保つようにしたセツト
時閉止形の圧力補償弁であつて、前記スプールの
センシングポート側外周部に、Ｏリングとバツク
アツプリングとからなるシール部材を装着してパ
イロツト油のリークを防止するようにしたことを
特徴とする圧力補償弁。 ２ 負荷シリンダと油タンクとの間に切換弁、絞
り弁及び圧力補償弁を直列に接続した圧力補償回
路において、前記圧力補償弁のスプリング側パイ
ロツトラインを該圧力補償弁の流入口側に接続す
ると共に、反対側パイロツトラインを前記負荷シ
リンダの流出口側に接続するようにしたことを特
徴とする圧力補償回路。[Claims for Utility Model Registration] 1. A spool that slides in the axial direction inside a body whose one end is sealed is moved to a closed position against the biasing force of a spring by pilot pressure introduced into a sensing port from load pressure. The pressure compensating valve is of a closed type when set, and a sealing member consisting of an O-ring and a back-up spring is attached to the outer periphery of the spool on the sensing port side to prevent leakage of pilot oil. A pressure compensation valve characterized by: 2. In a pressure compensation circuit in which a switching valve, a throttle valve, and a pressure compensation valve are connected in series between a load cylinder and an oil tank, the spring side pilot line of the pressure compensation valve is connected to the inlet side of the pressure compensation valve. The pressure compensation circuit is further characterized in that the opposite pilot line is connected to the outlet side of the load cylinder.
JP1990052452U 1990-05-19 1990-05-19 Pressure compensation circuit Expired - Lifetime JP2532170Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990052452U JP2532170Y2 (en) 1990-05-19 1990-05-19 Pressure compensation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990052452U JP2532170Y2 (en) 1990-05-19 1990-05-19 Pressure compensation circuit

Publications (2)

Publication Number Publication Date
JPH0411977U true JPH0411977U (en) 1992-01-30
JP2532170Y2 JP2532170Y2 (en) 1997-04-09

Family

ID=31572769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990052452U Expired - Lifetime JP2532170Y2 (en) 1990-05-19 1990-05-19 Pressure compensation circuit

Country Status (1)

Country Link
JP (1) JP2532170Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015028367A (en) * 2013-07-30 2015-02-12 Ｈａｗｅジャパン株式会社 Hydraulic unit and hydraulic system
WO2015049828A1 (en) * 2013-10-04 2015-04-09 川崎重工業株式会社 Control valve
CN111379756A (en) * 2018-12-29 2020-07-07 浙江华益精密机械股份有限公司 pressure compensation valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588374A (en) * 2012-03-09 2012-07-18 浙江捷姆轴承有限公司 Pressure flux linkage valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5067428U (en) * 1973-10-20 1975-06-17
JPS50154831A (en) * 1974-06-04 1975-12-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5067428U (en) * 1973-10-20 1975-06-17
JPS50154831A (en) * 1974-06-04 1975-12-13

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015028367A (en) * 2013-07-30 2015-02-12 Ｈａｗｅジャパン株式会社 Hydraulic unit and hydraulic system
WO2015049828A1 (en) * 2013-10-04 2015-04-09 川崎重工業株式会社 Control valve
JP2015072055A (en) * 2013-10-04 2015-04-16 川崎重工業株式会社 Control valve
CN111379756A (en) * 2018-12-29 2020-07-07 浙江华益精密机械股份有限公司 pressure compensation valve

Also Published As

Publication number Publication date
JP2532170Y2 (en) 1997-04-09

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