JPS6140807U

JPS6140807U - Agricultural tractor work equipment control device

Info

Publication number: JPS6140807U
Application number: JP12559084U
Authority: JP
Inventors: 薫徳咲川
Original assignee: 株式会社神崎高級工機製作所
Priority date: 1984-08-17
Filing date: 1984-08-17
Publication date: 1986-03-15

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]

第１図は本考案の作業機制御装置の制御線図。第２図は本コントロール油圧制御弁装置の平面図。第３図、第４図は同じく前面断面図。第５図は同じく左
側面図。第６図は右側面区。第７区は同じく後面図。第８図は同じく底面図。第９図はフローコントロール弁
用電磁弁の側面図。第１０図は同じく側面断面図。命１１図は下げ用チェツク弁の電磁弁Ｃの側面断面図。第１２図は而じく底面図。第１３図は右側面図。第１４図は本考案の制御フローチ
ャート図である。 ■・・・バルブケース、Ａ−Ｂ−Ｃ・・・パイロット用
電磁弁、Ｅ・・・上げ用アンロード弁、Ｆ・・・下げ用
チェツク弁、３・・・ＰＴＯ回転センサー、５・・・リ
フトアーム、１０・・・リフトアーム昇降スイッチ。FIG. 1 is a control diagram of the work machine control device of the present invention. FIG. 2 is a plan view of the present control hydraulic control valve device. 3 and 4 are front sectional views. Figure 5 is also a left side view. Figure 6 shows the right side area. The 7th ward is also a rear view. Figure 8 is also a bottom view. FIG. 9 is a side view of a solenoid valve for a flow control valve. FIG. 10 is a side sectional view as well. Figure 11 is a side sectional view of the solenoid valve C of the lowering check valve. Figure 12 is actually a bottom view. Figure 13 is a right side view. FIG. 14 is a control flowchart of the present invention. ■...Valve case, A-B-C...Solenoid valve for pilot, E...Unload valve for raising, F...Check valve for lowering, 3...PTO rotation sensor, 5...・Lift arm, 10... Lift arm elevation switch.

Claims

[Scope of utility model registration request]

(1) A hydraulic control device in which a lifting unloading valve E, a lowering check valve F1, a flow control switching valve D, and a flow control valve are arranged in the valve case ■, and the primary side and the secondary side of the flow control 93 valve D. Agricultural use characterized by having an electromagnetic pilot valve B branched from the primary side of the flow control valve E that detects the differential pressure between the flow control valve E and the flow control valve E, which is equipped with a port leading to a drain and a port blocking the flow control valve B. Tractor work equipment control device.

(2) Scope of Utility Model Registration Claims In the work machine control device described in claim 1, an unloading valve E for lifting and a check valve F for lowering are provided in the valve case V, and the valves are attached to the valve case V. In the configuration in which the lift arm 5 is moved up and down by actuation by a pilot solenoid valve, a PTO rotation sensor 3 for detecting PTO rotation is provided in the PTO shaft 12 of the agricultural tractor or in the PTO drive system, and the PTO shaft 12
A work equipment control device for an agricultural tractor, characterized in that operation based on a lift arm elevation switch of a pilot solenoid valve is stopped with rotation of the pilot solenoid valve.