JPH0417451U - - Google Patents
Info
- Publication number
- JPH0417451U JPH0417451U JP5918190U JP5918190U JPH0417451U JP H0417451 U JPH0417451 U JP H0417451U JP 5918190 U JP5918190 U JP 5918190U JP 5918190 U JP5918190 U JP 5918190U JP H0417451 U JPH0417451 U JP H0417451U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- line
- boom
- swing
- throttle
- 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.)
- Pending
Links
- 230000002265 prevention Effects 0.000 claims 1
Landscapes
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
第１図は本考案に係る回路。第２図は公知回路
を示す。
図において；ａ〜ｉ……ライン、，……プ
レツシヤスイツチ、１……ブーム１速スプール、
２……ブーム２速スプール、３……旋回スプール
、４……ポンプ、５……ポンプ、６……ブームシ
リンダ、７……旋回モータ、８……パイロツト弁
、９……電磁弁、１０……信号処理機能、１１…
…油圧源、１２……シヤトル弁。
Figure 1 shows a circuit according to the present invention. FIG. 2 shows a known circuit. In the figure: a to i...line, ,...pressure switch, 1...boom 1st speed spool,
2...Boom 2-speed spool, 3...Swivel spool, 4...Pump, 5...Pump, 6...Boom cylinder, 7...Swivel motor, 8...Pilot valve, 9...Solenoid valve, 10... ...Signal processing function, 11...
...Hydraulic power source, 12...Shuttle valve.
Claims (1)
７に通ずるラインｄをパイロツト弁８により絞り
を持つ通路８ａと絞りを持たない通路８ｂへ切り
換え可能とし、旋回とブーム上操作を同時に行つ
た場合にラインｄが絞りを持つ通路８ａに切り換
り、ブーム上操作のみを止めてもラインｄは絞り
を持つ通路８ａの状態にあるようにしたことを特
徴とするシヨベルに於ける旋回複合操作後の旋回
速度急変防止回路。 The line d leading from the pump 5 to the swing motor 7 via the swing spool 3 can be switched between a passage 8a with a restriction and a passage 8b without a restriction by a pilot valve 8, so that when turning and operation on the boom are performed simultaneously, the line d Turning speed after a combined swing operation in a shovel characterized in that the line d is switched to the passage 8a having a throttle, and even if only the operation on the boom is stopped, the line d remains in the passage 8a having a throttle. Sudden change prevention circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5918190U JPH0417451U (en) | 1990-06-06 | 1990-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5918190U JPH0417451U (en) | 1990-06-06 | 1990-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417451U true JPH0417451U (en) | 1992-02-13 |
Family
ID=31585454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5918190U Pending JPH0417451U (en) | 1990-06-06 | 1990-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417451U (en) |
-
1990
- 1990-06-06 JP JP5918190U patent/JPH0417451U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0417451U (en) | ||
| JPS63198644U (en) | ||
| JPS63185849U (en) | ||
| JPS62196260U (en) | ||
| JPH0192501U (en) | ||
| JPH0314381U (en) | ||
| JPH0289051U (en) | ||
| JPH0341203U (en) | ||
| JPH0325651U (en) | ||
| JPS62110360U (en) | ||
| JPH0226656U (en) | ||
| JPH049454U (en) | ||
| JPS62140204U (en) | ||
| JPH01156253U (en) | ||
| JPS62176253U (en) | ||
| JPS625188U (en) | ||
| JPS59125563U (en) | Construction machinery hydraulic circuit | |
| JPS59166002U (en) | swivel vehicle | |
| JPS5872265U (en) | Control lever locking device | |
| JPH01150653U (en) | ||
| JPS59192959U (en) | hydraulic circuit | |
| JPH0218775U (en) | ||
| JPH026764U (en) | ||
| JPH0280166U (en) | ||
| JPH0426251U (en) |