JPS6068907U

JPS6068907U - Horizontal control device for work equipment

Info

Publication number: JPS6068907U
Application number: JP16176283U
Authority: JP
Inventors: 大西　悦郎
Original assignee: セイレイ工業株式会社
Priority date: 1983-10-18
Filing date: 1983-10-18
Publication date: 1985-05-16

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]

図面はこの考案の実施例を示すもので、第１図はトラク
タと作業機の連結構成を示す一部断面側面図、第２図、
第３図は水平検知センサの一例を示す斜視図および断面
正面図、第４図はその動作原理を示す断面図、第５図は
車速検知センサの一例を示す配置図、第６図はこの考案
に係る制御装置のブロック図、第７図は遅延回路の波形
図、第８図はパルス発信回路の波形図である。（符号）、Ａ・・・・・・トラクタ、ｔｎ・・・・・・
遅延時間、Ｂ・・・・・・作業機、ｄ・・・・・・デユ
ーティ比、１・・・・・・３点リンク機構、４・・・・
・・リフティングロッド、６・・・・・・油圧シリンダ
、７・・・・・・水平検知センサ、１８・・・・・・車
速検知センサ、２４・・・・・・電磁弁、２７・・・・
・・遅延回路、２９・・・・・・パルス発信回路。The drawings show an embodiment of this invention; FIG. 1 is a partially sectional side view showing the connection structure of a tractor and a working machine;
Fig. 3 is a perspective view and a sectional front view showing an example of a horizontal detection sensor, Fig. 4 is a sectional view showing its operating principle, Fig. 5 is a layout diagram showing an example of a vehicle speed detection sensor, and Fig. 6 is a diagram of this invention. FIG. 7 is a waveform diagram of the delay circuit, and FIG. 8 is a waveform diagram of the pulse generating circuit. (Sign), A...Tractor, tn...
Delay time, B... Work equipment, d... Duty ratio, 1... Three-point link mechanism, 4...
... Lifting rod, 6 ... Hydraulic cylinder, 7 ... Horizontal detection sensor, 18 ... Vehicle speed detection sensor, 24 ... Solenoid valve, 27 ...・・・
...Delay circuit, 29...Pulse transmission circuit.

Claims

[Claims for Utility Model Registration] ■ Three-point link mechanism 1 that connects work machine B to 1 tractor A
The left and right lifting rods 4.4 constituting the - are replaced with hydraulic cylinders 6, and the horizontal detection sensor 7.7, which is installed on the work machine B and detects the left and right inclination of the work machine B, is installed. In response to a command, this hydraulic cylinder 6 is expanded and contracted,
In the horizontal control device for a work machine that maintains the work machine B horizontally, a vehicle speed detection sensor 18 that emits a pulse signal of a frequency corresponding to the vehicle speed of the tractor A is separately provided, and the horizontal detection sensor 7.7 is connected to the work machine B. Both the operation delay time from when the inclination of the vehicle B is detected to when the hydraulic cylinder 6 is actuated and the operation speed of the hydraulic cylinder 6 are controlled proportionally according to the frequency of the pulse signal emitted by the vehicle speed detection sensor 18. A horizontal control device for a work machine, which is characterized by: (2) Several types of delay circuits 27 with different delay times tn are provided, and - of the delay circuits 27 is selected depending on the frequency of the signal emitted by the vehicle speed detection sensor 1B. A horizontal control device for a work machine according to scope item 0. ■ The electromagnetic valve 24 controlling the hydraulic cylinder 6 is driven with a pulse current, and several types of pulse transmitting circuits 29 with different duty ratios d are provided, and the pulse transmitting circuit 24 is transmitted according to the frequency of the signal generated by the vehicle speed detection sensor 18. Circuit 29 -
A horizontal control device for a working machine according to claim 0 or 0 of the utility model registration claim, characterized in that: