JPS5962707U

JPS5962707U - Attitude control device for ground work equipment

Info

Publication number: JPS5962707U
Application number: JP15776582U
Authority: JP
Inventors: 和彦矢野; 良太大橋; 正久河村
Original assignee: 株式会社神崎高級工機製作所
Priority date: 1982-10-19
Filing date: 1982-10-19
Publication date: 1984-04-25
Also published as: JPH0126161Y2

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トラクタ後部及
びロータリ耕耘機を示す側面図、第２図は同実施例の油
圧回路図、第３図はこの考案の他の実施例の油圧回路図
、第４図は同地の実施例要部の具体構造例を示す断面図
である。１・・・トラクタ、２・・・ロータリ耕耘機、７・・・
タイロッド、９・・・油圧シリンダ、９ａ・・・伸長作
用油室、９ｂ・・・縮小作用油室、１０・・・センサー
、１７・・・給油回路、１８・・・可変絞り、２１・・
・電磁弁、２３Ａ。２３Ｂ・・・油給排回路、２４・・・逆止弁、２５・・
・可変絞り、１０１・・・バルブケース、１０２，１０
３゜１０４・・・油通路、１０５，１０６，１０７・・
・油通路、１０８．１０９・・・テーパ一部、１１０・
・・調整螺杆、１１１・・・ハンドル、１１８・・・絞
り、１２５・・・絞り。Fig. 1 is a side view showing the rear of a tractor and rotary tiller equipped with an embodiment of this invention, Fig. 2 is a hydraulic circuit diagram of the same embodiment, and Fig. 3 is a hydraulic circuit of another embodiment of this invention. 4 are cross-sectional views showing specific structural examples of the main parts of the embodiment at the same place. 1...Tractor, 2...Rotary tiller, 7...
Tie rod, 9... Hydraulic cylinder, 9a... Extension oil chamber, 9b... Reduction oil chamber, 10... Sensor, 17... Oil supply circuit, 18... Variable throttle, 21...
・Solenoid valve, 23A. 23B... Oil supply and drain circuit, 24... Check valve, 25...
・Variable aperture, 101... Valve case, 102, 10
3゜104...Oil passage, 105, 106, 107...
・Oil passage, 108.109...Taper part, 110・
...adjustment screw, 111...handle, 118...diaphragm, 125...diaphragm.

Claims

[Scope of Claim for Utility Model Registration] 1. A double-acting type oil return cylinder that changes the attitude of the ground work equipment is provided, and a solenoid valve whose position is switched and controlled by a sensor that detects the attitude of the ground work equipment is used to return the oil to the hydraulic cylinder. An attitude control device configured to maintain a ground work device in a horizontal attitude by controlling the supply of hydraulic oil to the
Of the pair of oil supply and drain circuits that connect the solenoid valve and the hydraulic cylinder described above, the oil is supplied through them in the direction of raising the working equipment, and when draining oil, in the direction of lowering the working equipment.
A check valve and a throttle are connected in parallel to each other and are inserted into the oil supply/discharge circuit on the side where the hydraulic cylinders are respectively activated to allow oil flow only in the direction of the hydraulic cylinders. Attitude control device for ground work equipment. 2. The throttle is configured to have a variable throttle degree, and another throttle with a variable throttle degree is inserted and installed in the oil supply circuit next to the solenoid valve, and the throttle and the other throttle are interlocked with each other to reduce the throttle. characterized in that it is provided with an operating means that allows the degree to be increased or decreased;
A stable posture control device as set forth in claim 1 of the utility model registration claim. −