JPS6089807U

JPS6089807U - Agricultural tractor fluid pressure circuit

Info

Publication number: JPS6089807U
Application number: JP18333283U
Authority: JP
Inventors: 正三石森
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 1983-11-28
Filing date: 1983-11-28
Publication date: 1985-06-20
Also published as: JPH035205Y2

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 the drawing]

図面は本考案に係る農用トラクターの流体圧回路の実施
例を示し、第１図は農用トラクタニの整地装置連結状態
側面図、第２図は整地装置連結部の平面図、第３図は農
用トラクターの耕耘装置連結状態側面図、第４図は耕耘
装置連結部の平面図、第５図は整地装置連結時の流体圧
回路図、第６図は耕耘装置連結時の流体回路図、第７図
は流路形成用ブロックの平面図、第８図は流路形成用ブ
ロックの断面図である。１０．１１・・・・・・複動型シリンダ、１５・・・・
・・流体取出し部、１６・・・・・・コントロールバル
ブ、２５・・・・・・単動型シリンダ、２６・・・・・
・流路形成用ブロック、２８・・・・・・第１接続流路
、２９・・・・・・第２接続流路、３０・・・・・・逆
止弁、Ａ、Ｂ・・・・・・シリンダ側ポート、ａ、ｂ・
・・・・・バルブ側ポート、Ｃ・・・・・・シリンダ側
ポート。The drawings show an embodiment of the hydraulic circuit for an agricultural tractor according to the present invention, in which Fig. 1 is a side view of the agricultural tractor connected to the land leveling device, Fig. 2 is a plan view of the connected part of the land leveling device, and Fig. 3 is the agricultural tractor. Fig. 4 is a plan view of the tilling device connection section, Fig. 5 is a fluid pressure circuit diagram when the soil leveling device is connected, Fig. 6 is a fluid circuit diagram when the tilling device is connected, and Fig. 7 is a side view of the tilling device connected state. 8 is a plan view of the channel forming block, and FIG. 8 is a sectional view of the channel forming block. 10.11...Double acting cylinder, 15...
...Fluid extraction part, 16...Control valve, 25...Single acting cylinder, 26...
・Flow path forming block, 28...First connection flow path, 29...Second connection flow path, 30...Check valve, A, B...・・・Cylinder side port, a, b・
...Valve side port, C...Cylinder side port.

Claims

[Scope of utility model registration request]

This is a fluid pressure circuit for an agricultural tractor in which a double-acting cylinder control valve 16 is permanently installed for the cylinders 10, 11.25 which are separably connected to a pressure fluid outlet 15, and the single-acting cylinder IJ cylinder 25 is controlled by the control valve 16. A flow path forming block 26 connected to the valve 16 side is detachably provided, and a first and a first block 26 which can be separately connected and separated to the pair of cylinder side ports A and B on the control valve 16 side are provided. Second control valve side ports a, b, cylinder side port C1 which can be freely connected to and separated from the single acting cylinder 25 side; first port C1 which connects this cylinder side port C and the first valve side port a;
a flow path 28, a second flow path 29 connecting the cylinder side port C and the second valve side port);
The agricultural tractor is equipped with the flow path forming block 26, each of which is provided with a check valve 30 on one side of the connecting flow path 28, 29 to block only fluid flow from the cylinder 25 side to the control valve 16 side. fluid pressure circuit.