JPH0169903U - - Google Patents
Info
- Publication number
- JPH0169903U JPH0169903U JP1987164767U JP16476787U JPH0169903U JP H0169903 U JPH0169903 U JP H0169903U JP 1987164767 U JP1987164767 U JP 1987164767U JP 16476787 U JP16476787 U JP 16476787U JP H0169903 U JPH0169903 U JP H0169903U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- attachment
- port
- acting cylinder
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Shovels (AREA)
Description
第1図は本考案に係る第1の実施例を示した油
圧配管の回路図、第2図は同じく第2の実施例を
示した部分回路図、第3図は同じく第3の実施例
を示した部分回路図、第4図はアタツチメントを
グラツプルフオークに適用する第4の実施例を示
したリフトアームとアタツチメントの側面図、第
5図は第4図の実施例を示した油圧配管の部分回
路図、第6図は本考案に係る油圧装置を制御する
電磁切換弁に接続するタイマー内蔵型リレーユニ
ツトの回路図、第7図はタイマー内蔵型リレーユ
ニツトの動作の状態を示すチヤート図である。第
8図は本考案を適用する一般的なトラクタの全体
図、第9図は、トラクタのアタツチメントを制御
するための従来の回路図である。
1……トラクタ本体(作業機)、2……サイド
フレーム、3……リフトアーム、3a……基部、
3b……先端部、3c……中央部、4……アタツ
チメント、5……リフト用の複動シリンダ(リフ
トシリンダ)、6……ダンプ用の複動シリンダ(
ダンプシリンダ)、6a……ピストンロツド、7
……クランク、8……コンロツド、9……座席、
10……レバー、11……第1の切換弁、12…
…第2の切換弁、13……6ポート2位置型電磁
切換弁(電磁切換弁)、14……タイマーユニツ
トを内蔵したリレーユニツト(タイマー内蔵型リ
レーユニツト)、15……外部電源、16……マ
スタースイツチ、23……第2の実施例にかかる
6ポート2位置型電磁切換弁、33……第3の実
施例にかかる6ポート2位置型電磁切換弁、43
……第4の実施例にかかる8ポート3位置型電磁
切換弁。
Fig. 1 is a circuit diagram of hydraulic piping showing a first embodiment of the present invention, Fig. 2 is a partial circuit diagram also showing a second embodiment, and Fig. 3 is a circuit diagram of a hydraulic piping according to a third embodiment. FIG. 4 is a side view of the lift arm and attachment showing a fourth embodiment in which the attachment is applied to a grapple fork, and FIG. 5 is a hydraulic piping diagram showing the embodiment of FIG. 4. FIG. 6 is a circuit diagram of a relay unit with a built-in timer connected to an electromagnetic switching valve that controls the hydraulic system according to the present invention, and FIG. 7 is a chart diagram showing the operating state of the relay unit with a built-in timer. It is. FIG. 8 is an overall view of a general tractor to which the present invention is applied, and FIG. 9 is a conventional circuit diagram for controlling the attachment of the tractor. 1... Tractor main body (work machine), 2... Side frame, 3... Lift arm, 3a... Base,
3b...Tip, 3c...Center, 4...Attachment, 5...Double acting cylinder for lift (lift cylinder), 6...Double acting cylinder for dump (
dump cylinder), 6a... piston rod, 7
...Crank, 8...Conrod, 9...Seat,
10... Lever, 11... First switching valve, 12...
...Second switching valve, 13...6-port 2-position electromagnetic switching valve (electromagnetic switching valve), 14...Relay unit with built-in timer unit (relay unit with built-in timer), 15...External power supply, 16... ... Master switch, 23 ... 6-port 2-position electromagnetic switching valve according to the second embodiment, 33 ... 6-port 2-position electromagnetic switching valve according to the third embodiment, 43
...An 8-port 3-position electromagnetic switching valve according to a fourth embodiment.
Claims (1)
シリンダで制御する型式の作業機の油圧装置にお
いて、 上記複動シリンダの油圧回路の途中に6ポート
2位置型電磁切換弁を設置し、 上記6ポート2位置型電磁切換弁をタイマーユ
ニツトを内蔵したリレーユニツトで継続切換えす
るようになし、 上記複動シリンダの制御動作中に、リレーユニ
ツトによつて、6ポート2位置型電磁切換弁を継
続させて、アタツチメントに振動を与えるように
なしたことを特徴とする作業機のアタツチメント
の振動装置。[Scope of Claim for Utility Model Registration] In a hydraulic system for a work machine in which the attachment at the tip of a lift arm is controlled by a double-acting cylinder, a 6-port 2-position electromagnetic switching valve is installed in the middle of the hydraulic circuit of the double-acting cylinder. The 6-port 2-position solenoid switching valve is continuously switched by a relay unit with a built-in timer unit. A vibration device for an attachment of a working machine, characterized in that a switching valve is continuously operated to apply vibration to the attachment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987164767U JPH0749051Y2 (en) | 1987-10-27 | 1987-10-27 | Hydraulic system for driving attachments of work equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987164767U JPH0749051Y2 (en) | 1987-10-27 | 1987-10-27 | Hydraulic system for driving attachments of work equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0169903U true JPH0169903U (en) | 1989-05-10 |
JPH0749051Y2 JPH0749051Y2 (en) | 1995-11-13 |
Family
ID=31450652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987164767U Expired - Lifetime JPH0749051Y2 (en) | 1987-10-27 | 1987-10-27 | Hydraulic system for driving attachments of work equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0749051Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996011306A1 (en) * | 1994-10-05 | 1996-04-18 | Komatsu Ltd. | Vibrating device for an operating machine for a hydraulic shovel |
-
1987
- 1987-10-27 JP JP1987164767U patent/JPH0749051Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996011306A1 (en) * | 1994-10-05 | 1996-04-18 | Komatsu Ltd. | Vibrating device for an operating machine for a hydraulic shovel |
Also Published As
Publication number | Publication date |
---|---|
JPH0749051Y2 (en) | 1995-11-13 |