JPH01166162U - - Google Patents

Info

Publication number
JPH01166162U
JPH01166162U JP5599688U JP5599688U JPH01166162U JP H01166162 U JPH01166162 U JP H01166162U JP 5599688 U JP5599688 U JP 5599688U JP 5599688 U JP5599688 U JP 5599688U JP H01166162 U JPH01166162 U JP H01166162U
Authority
JP
Japan
Prior art keywords
unload valve
start pressure
main circuits
hydraulic
relief start
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
JP5599688U
Other languages
Japanese (ja)
Other versions
JPH07765Y2 (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 JP1988055996U priority Critical patent/JPH07765Y2/en
Publication of JPH01166162U publication Critical patent/JPH01166162U/ja
Application granted granted Critical
Publication of JPH07765Y2 publication Critical patent/JPH07765Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案の実施例を示す回路図、第２図
は回転数の差と圧力コントロール信号の関係を示
す図表、第３図は圧力コントロール信号とリリー
フ開始圧力の関係を示す図表、第４図は従来の回
路図である。 １は油圧ポンプ、２は油圧モータ、３は第１主
回路、４は第２主回路、１２，１３は第１、第２
アンロード弁。 Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a chart showing the relationship between the rotation speed difference and the pressure control signal, and Fig. 3 is a chart showing the relationship between the pressure control signal and the relief start pressure. FIG. 4 is a conventional circuit diagram. 1 is a hydraulic pump, 2 is a hydraulic motor, 3 is a first main circuit, 4 is a second main circuit, 12 and 13 are first and second
Unload valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧ポンプ１と油圧モータ２を第１、第２主回
路３，４で閉回路接続し、その第１、第２主回路
３，４を、リリーフ開始圧力を任意に設定できる
アンロード弁を介して短絡すると共に、このアン
ロード弁のリリーフ開始圧力を速度コントロール
信号に基づいて設定するようにしたことを特徴と
する油圧駆動装置。 The hydraulic pump 1 and the hydraulic motor 2 are connected in a closed circuit through first and second main circuits 3 and 4, and the first and second main circuits 3 and 4 are connected through an unload valve that can arbitrarily set the relief start pressure. A hydraulic drive device characterized in that the unload valve is short-circuited and the relief start pressure of the unload valve is set based on a speed control signal.
JP1988055996U 1988-04-27 1988-04-27 Hydraulic drive Expired - Lifetime JPH07765Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988055996U JPH07765Y2 (en) 1988-04-27 1988-04-27 Hydraulic drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988055996U JPH07765Y2 (en) 1988-04-27 1988-04-27 Hydraulic drive

Publications (2)

Publication Number Publication Date
JPH01166162U true JPH01166162U (en) 1989-11-21
JPH07765Y2 JPH07765Y2 (en) 1995-01-11

Family

ID=31281882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988055996U Expired - Lifetime JPH07765Y2 (en) 1988-04-27 1988-04-27 Hydraulic drive

Country Status (1)

Country Link
JP (1) JPH07765Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018087898A1 (en) * 2016-11-11 2018-05-17 株式会社小松製作所 Working machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574276U (en) * 1980-06-07 1982-01-09
JPS601319U (en) * 1983-06-18 1985-01-08 小沢　啓一 lighted umbrella

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574276U (en) * 1980-06-07 1982-01-09
JPS601319U (en) * 1983-06-18 1985-01-08 小沢　啓一 lighted umbrella

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018087898A1 (en) * 2016-11-11 2018-05-17 株式会社小松製作所 Working machine
JP6335340B1 (en) * 2016-11-11 2018-05-30 株式会社小松製作所 Work machine

Also Published As

Publication number Publication date
JPH07765Y2 (en) 1995-01-11

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