JPS5947773U - Hydraulic drive vehicle speed increase circuit - Google Patents

Hydraulic drive vehicle speed increase circuit

Info

Publication number
JPS5947773U
JPS5947773U JP14105782U JP14105782U JPS5947773U JP S5947773 U JPS5947773 U JP S5947773U JP 14105782 U JP14105782 U JP 14105782U JP 14105782 U JP14105782 U JP 14105782U JP S5947773 U JPS5947773 U JP S5947773U
Authority
JP
Japan
Prior art keywords
speed increase
operation valve
drive vehicle
hydraulic drive
vehicle speed
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
JP14105782U
Other languages
Japanese (ja)
Inventor
馬場　洋征
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 JP14105782U priority Critical patent/JPS5947773U/en
Publication of JPS5947773U publication Critical patent/JPS5947773U/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

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) [Abstract] 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]

図面はこの考案の一実施例を示す回路図である。 ２．３は油圧ポンプ、４は増速ポンプ、２０はブームシ
リンダ、２２はブレード操作弁、２３はブーム増速操作
弁、２４はブレードシリンダ、２６はアーム増速操作弁
、２７は走行増速操作弁。The drawing is a circuit diagram showing an embodiment of this invention. 2.3 is a hydraulic pump, 4 is a speed increase pump, 20 is a boom cylinder, 22 is a blade operation valve, 23 is a boom speed increase operation valve, 24 is a blade cylinder, 26 is an arm speed increase operation valve, 27 is a traveling speed increase Operation valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] パケット作業機及びブレードを有する油圧駆動車におい
て、上記パケット作業機の各部及６走行系に油圧を供給
する油圧ポンプ２．３と別に、増速ポンプ４を設け、こ
の増速ポンプ４に、ブレードシリンダ２４へ油圧を供給
するブレード操作弁２２と、ブームシリンダ２０へ応援
油圧を供給するブーム増速操作弁２３を並列接続すると
共に、上記ブーム増速操作弁２３にアーム増速操作弁２
６及び走行増速操作弁２７を直列接続してなる油圧駆動
車の増速回路。In a hydraulic drive vehicle having a packet working machine and a blade, a speed increasing pump 4 is provided in addition to the hydraulic pump 2.3 that supplies hydraulic pressure to each part of the packet working machine and the six travel systems, and this speed increasing pump 4 has a blade. A blade operation valve 22 that supplies hydraulic pressure to the cylinder 24 and a boom speed increase operation valve 23 that supplies support hydraulic pressure to the boom cylinder 20 are connected in parallel, and the arm speed increase operation valve 2 is connected to the boom speed increase operation valve 23.
6 and a travel speed increasing operation valve 27 are connected in series for a hydraulically driven vehicle.
JP14105782U 1982-09-20 1982-09-20 Hydraulic drive vehicle speed increase circuit Pending JPS5947773U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14105782U JPS5947773U (en) 1982-09-20 1982-09-20 Hydraulic drive vehicle speed increase circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14105782U JPS5947773U (en) 1982-09-20 1982-09-20 Hydraulic drive vehicle speed increase circuit

Publications (1)

Publication Number Publication Date
JPS5947773U true JPS5947773U (en) 1984-03-29

Family

ID=30315597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14105782U Pending JPS5947773U (en) 1982-09-20 1982-09-20 Hydraulic drive vehicle speed increase circuit

Country Status (1)

Country Link
JP (1) JPS5947773U (en)

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