JPS6130703U

JPS6130703U - Hydraulic supply system for work vehicles

Info

Publication number: JPS6130703U
Application number: JP11675684U
Authority: JP
Inventors: 良太大橋; 正久河村; 康一郎富士崎
Original assignee: 株式会社神崎高級工機製作所
Priority date: 1984-07-30
Filing date: 1984-07-30
Publication date: 1986-02-24

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

[Brief explanation of drawings]

第１図はこの考案の一実施例を装備した作業車輌におけ
る油圧回路を示す回路図、第２図は同作業車輌の一部切
欠き側面図、第３図は同作業車輌に設けられているーコ
ントロールバルブ装置の横断平面図、第４図は同作業車
輌要部の縦断側面図、第５図は同作業車輌要部の一部省
略横断平面図である。１・・・・・・油圧作動機器（リフトシリンダ）、２・
・・・・・油圧作動機器（チルトシリンダ）、３・・・
・・・油圧作動機器（モア昇降シリンダ）、４・・・・
・・油圧作動機器（油圧リフトシリンタ）、５・・・・
・・パワーステアリング機構、６・・・・・・油圧ポン
プ、７・・・・・・フローデバイダ、８・・・・・・圧
油供給回路、９・・・・・・油圧クラッチ、１０・・・
・・・作動油供給回路、１１・・・・・・フロントロー
ダ、１２・・・・・・モア、１３・・・・・・油圧リフ
ト装置、１７・・・・・・コントロールバルフ装置、２
１・・・・・・圧油供給回路、２２・・・・・・スプリ
ング、２３・・・・・・絞り、２５・・・・・・パワー
シリンダ、２６・・・・・・方向切換弁、２７・・・・
・・メータリングモータ、２８・・曲逆止弁、２９・・
・・・・調圧弁、３０・・・・・・方向切換弁、３１・
・・・・・調圧弁、４７．４８・・・・・・伝動軸、５
８・・曲ブレーキ、７０・・・・・・ポンプポート、７
１・・曲制御流出力ポート、７２・・・・・・油路、７
３，７４，７５・・・・・・孔。Fig. 1 is a circuit diagram showing a hydraulic circuit in a working vehicle equipped with an embodiment of this invention, Fig. 2 is a partially cutaway side view of the working vehicle, and Fig. 3 is a diagram showing the hydraulic circuit installed in the working vehicle. FIG. 4 is a cross-sectional side view of the main part of the control valve device, FIG. 5 is a partially omitted cross-sectional plan view of the main part of the work vehicle. 1... Hydraulic operating equipment (lift cylinder), 2.
...Hydraulic operating equipment (tilt cylinder), 3...
...Hydraulic operating equipment (mower lifting cylinder), 4...
・・Hydraulic operating equipment (hydraulic lift cylinder), 5・・・・
... Power steering mechanism, 6 ... Hydraulic pump, 7 ... Flow divider, 8 ... Pressure oil supply circuit, 9 ... Hydraulic clutch, 10.・・・
... Hydraulic oil supply circuit, 11 ... Front loader, 12 ... Mower, 13 ... Hydraulic lift device, 17 ... Control valve device, 2
1... Pressure oil supply circuit, 22... Spring, 23... Throttle, 25... Power cylinder, 26... Directional switching valve , 27...
・・Metering motor, 28・・Curved check valve, 29・・
...Pressure regulating valve, 30... Directional switching valve, 31.
...Pressure regulating valve, 47.48...Transmission shaft, 5
8... Curved brake, 70... Pump port, 7
1... Curved control outflow port, 72... Oil path, 7
3, 74, 75... hole.

Claims

[Scope of utility model registration request]

In a work vehicle equipped with a plurality of hydraulically operated devices for working machines and a power steering mechanism for operating the vehicle, pressure oil discharged from a single hydraulic pump is divided between the hydraulically operated devices and the power steering mechanism. A flow divider is provided to supply the pressure oil to the power steering mechanism as a priority circuit, and to supply oil discharged from the power steering mechanism to the hydraulic clutch in the power transmission path as hydraulic oil for the hydraulic clutch. A hydraulic oil supply device for a work vehicle, characterized by being provided with a hydraulic oil supply circuit for guiding the hydraulic oil.