JPS5881126U - Hydraulic drive vehicle control circuit - Google Patents

Hydraulic drive vehicle control circuit

Info

Publication number
JPS5881126U
JPS5881126U JP17663081U JP17663081U JPS5881126U JP S5881126 U JPS5881126 U JP S5881126U JP 17663081 U JP17663081 U JP 17663081U JP 17663081 U JP17663081 U JP 17663081U JP S5881126 U JPS5881126 U JP S5881126U
Authority
JP
Japan
Prior art keywords
control circuit
hydraulic
circuit
vehicle control
hydraulic drive
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.)
Pending
Application number
JP17663081U
Other languages
Japanese (ja)
Inventor
一夫 松田
森田　紘一
Original Assignee
株式会社小松製作所
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 by 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP17663081U priority Critical patent/JPS5881126U/en
Publication of JPS5881126U publication Critical patent/JPS5881126U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

図面は本考案の実施例を示す油圧回路図である。 １は油圧ポンプ、２は油圧モータ、５はチャージ回路、
７ａ、７ｂはリリーフ弁、３ａ、＄ｂはセット甲切換装
置、１０は制御弁用ポンプ、１２はエンジンスロットル
シグナル弁。The drawing is a hydraulic circuit diagram showing an embodiment of the present invention. 1 is a hydraulic pump, 2 is a hydraulic motor, 5 is a charge circuit,
7a and 7b are relief valves, 3a and $b are set switching devices, 10 is a control valve pump, and 12 is an engine throttle signal 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とを油圧回路にて接続し、
′かつこの油圧回路にチャージ回路５を接続した油圧駆
動車の制御回路において、上記油圧回路に、パイロット
圧にて作動するセット圧切換装置ｇａ、３ｂにてセット
圧を切換えることができるようにしたリリーフ弁７ａ、
７ｂを接続し、上記セット圧切換装置ｇａ、３ｂのパイ
ロット圧作用部と制御弁用ポンプ１０とを、エンジンス
ロットルレバーに連動して切換えられ、エンジン回転数
の変化に応じて連通位置とドレン位置とが切換えるよう
にしたエンジンスロットルシグナル弁１２を介して接続
したことを特徴とする油圧駆動車の制御回路。A hydraulic pump 1 and a hydraulic motor 2 are connected through a hydraulic circuit,
'And in a control circuit of a hydraulically driven vehicle in which a charge circuit 5 is connected to this hydraulic circuit, the set pressure can be switched in the hydraulic circuit using set pressure switching devices ga and 3b operated by pilot pressure. relief valve 7a,
7b is connected, and the pilot pressure acting part of the set pressure switching device ga, 3b and the control valve pump 10 are switched in conjunction with the engine throttle lever, and the communication position and drain position are changed according to changes in engine speed. 1. A control circuit for a hydraulically driven vehicle, characterized in that the control circuit is connected via an engine throttle signal valve 12 configured to switch between the two.
JP17663081U 1981-11-30 1981-11-30 Hydraulic drive vehicle control circuit Pending JPS5881126U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17663081U JPS5881126U (en) 1981-11-30 1981-11-30 Hydraulic drive vehicle control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17663081U JPS5881126U (en) 1981-11-30 1981-11-30 Hydraulic drive vehicle control circuit

Publications (1)

Publication Number Publication Date
JPS5881126U true JPS5881126U (en) 1983-06-01

Family

ID=29969771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17663081U Pending JPS5881126U (en) 1981-11-30 1981-11-30 Hydraulic drive vehicle control circuit

Country Status (1)

Country Link
JP (1) JPS5881126U (en)

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