JPS6140805U

JPS6140805U - Agricultural tractor work equipment control device

Info

Publication number: JPS6140805U
Application number: JP12558884U
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

【図面の簡単な説明】第１図は本考案の農用トラクターの作業機制御装置の制
御線図と油圧制御弁装置の油圧線図を一体化した図面。第２図は本考案の作業機制御装置によりポジションコン
トロールを行う場合のタイミングチャート図。第３図は同じくオートデプスコントロールを行う場合の
タイミングチャート図。第４図は油圧制御弁装置の平面一部断面図。第５図は前
面図。第６図、第７図、第８図は前面の異なる位置の断面図。第９図は底面図。第１０図は左側面図。第１１図は後面一部断面図。第１２図は右側面図である
。２・・・速度センサー、■・・・バルブケース、Ａ・・
・下げ用電磁弁、Ｐ・・・上げ用電磁弁、Ｇ・・・下げ
用チエツク弁、Ｆ・・・上げ用アンロード弁。[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a drawing that integrates the control diagram of the working machine control device of the agricultural tractor of the present invention and the hydraulic diagram of the hydraulic control valve device. FIG. 2 is a timing chart when position control is performed by the work machine control device of the present invention. FIG. 3 is a timing chart diagram when performing automatic depth control. FIG. 4 is a partial cross-sectional plan view of the hydraulic control valve device. Figure 5 is a front view. FIGS. 6, 7, and 8 are cross-sectional views of the front surface at different positions. Figure 9 is a bottom view. Figure 10 is a left side view. FIG. 11 is a partial sectional view of the rear side. FIG. 12 is a right side view. 2... Speed sensor, ■... Valve case, A...
・Solenoid valve for lowering, P: Solenoid valve for raising, G: Check valve for lowering, F: Unload valve for raising.

Claims

[Scope of utility model registration request]

(1) A lifting unload valve F1 and a lowering check valve G are provided in the valve case ■, and a lifting solenoid valve D and a lowering solenoid valve A for operating these are attached to the valve case V, and the lowering solenoid valve A is attached to the valve case V. A work machine control device for an agricultural tractor, characterized in that it is equipped with a hydraulic stop valve K that stops rotation of a hydraulic cylinder and a slow return valve device.

(2) Scope of Utility Model Registration In the work machine control device described in claim 1, the operating rod of the slow return valve L is inserted into the back chamber of the lowering check valve G to control the opening amount of the check valve in the drain direction. A work equipment control device for an agricultural tractor, characterized in that a slowing action is achieved by controlling with this operating rod.