JPS60108801U - Hydraulic excavator operation circuit - Google Patents
Hydraulic excavator operation circuitInfo
- Publication number
- JPS60108801U JPS60108801U JP19937383U JP19937383U JPS60108801U JP S60108801 U JPS60108801 U JP S60108801U JP 19937383 U JP19937383 U JP 19937383U JP 19937383 U JP19937383 U JP 19937383U JP S60108801 U JPS60108801 U JP S60108801U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic excavator
- amplifier
- signal
- converter
- input
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
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
第１図は油圧ショベルの側面図。第２図は従来−の油圧
回路図。第３図は第２図操作回路によるバルブストロー
ク線図。第４図は本考案に係る操作回路。第５図は本考
案に係る演算増幅器の入力−出力関係グラフ。第６図は
同じく操作レバーのストローク線図とバルブスプールの
ストローク線図との関係グラフ。
図において；１・・・アタッチメント、２・・・ブーム
シリンダ、３・・・油圧ポンプ、４・・・メインバルブ
、５・・・操作レバー、６−・・リンク、７・・・変換
器、８・・・演算増幅器、９・・・設定器。Figure 1 is a side view of the hydraulic excavator. FIG. 2 is a conventional hydraulic circuit diagram. FIG. 3 is a valve stroke diagram based on the operation circuit shown in FIG. 2. FIG. 4 is an operating circuit according to the present invention. FIG. 5 is an input-output relationship graph of the operational amplifier according to the present invention. FIG. 6 is a graph showing the relationship between the stroke diagram of the operating lever and the stroke diagram of the valve spool. In the figure: 1... Attachment, 2... Boom cylinder, 3... Hydraulic pump, 4... Main valve, 5... Operating lever, 6-... Link, 7... Converter, 8... operational amplifier, 9... setting device.
Claims (1)
変換器からの電気信号を入力とする演算増幅器を設ける
と共に、該増幅器に設定器からの設定信号を入力し、前
記増幅器の出力が変換器からの入力に対してはＳ゛−次
遅れとなる様前記増幅器の出力信号を制御し、該信号に
よってメインバルブを操作するようにしたことを特徴と
する油圧ショベルの操作回路。A converter that converts the operating amount of the operating lever into an electrical signal, and an operational amplifier that receives the electrical signal from the converter as input, are provided, and a setting signal from a setting device is input to the amplifier, and the output of the amplifier is An operating circuit for a hydraulic excavator, characterized in that the output signal of the amplifier is controlled so as to have an S-th order delay with respect to an input from a converter, and a main valve is operated in accordance with the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19937383U JPS60108801U (en) | 1983-12-28 | 1983-12-28 | Hydraulic excavator operation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19937383U JPS60108801U (en) | 1983-12-28 | 1983-12-28 | Hydraulic excavator operation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60108801U true JPS60108801U (en) | 1985-07-24 |
| JPH0412243Y2 JPH0412243Y2 (en) | 1992-03-25 |
Family
ID=30759235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19937383U Granted JPS60108801U (en) | 1983-12-28 | 1983-12-28 | Hydraulic excavator operation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108801U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829656A (en) * | 1971-08-21 | 1973-04-19 |
-
1983
- 1983-12-28 JP JP19937383U patent/JPS60108801U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829656A (en) * | 1971-08-21 | 1973-04-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0412243Y2 (en) | 1992-03-25 |
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