JPS62166302U - - Google Patents
Info
- Publication number
- JPS62166302U JPS62166302U JP5278786U JP5278786U JPS62166302U JP S62166302 U JPS62166302 U JP S62166302U JP 5278786 U JP5278786 U JP 5278786U JP 5278786 U JP5278786 U JP 5278786U JP S62166302 U JPS62166302 U JP S62166302U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- circuit
- hydraulic
- connects
- flow control
- 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
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案シリンダ駆動装置の油圧回路、
第２図は第１図の油圧回路における制御回路の詳
細図、第３図はパワーシヨベルのバケツトの水平
な掘削姿勢を示し、第４図は第３図のバケツトの
上向き掘削姿勢を示す。
３……バケツトシリンダ、５，６……回生制御
弁、７……タンク、８……操作レバー、２０……
四方切換弁、２１……油圧ポンプ、２２……強制
制御回路、２３……回生制御回路、２４……圧力
スイツチ、２５……切替回路。
Figure 1 shows the hydraulic circuit of the cylinder drive device of the present invention.
2 is a detailed diagram of the control circuit in the hydraulic circuit of FIG. 1, FIG. 3 shows the bucket of the power shovel in a horizontal digging position, and FIG. 4 shows the bucket of FIG. 3 in an upward digging position. 3...bucket cylinder, 5, 6...regeneration control valve, 7...tank, 8...operation lever, 20...
Four-way switching valve, 21...hydraulic pump, 22...forced control circuit, 23...regeneration control circuit, 24...pressure switch, 25...switching circuit.
Claims (1)
御弁を介して結ぶ油圧回路とロツド側とタンクと
を流量制御弁を介して結ぶ油圧回路とから成る回
生回路と、４方切替弁を用いてシリンダを駆動す
る回路とを有するシステムにおいて、シリンダの
ヘツド圧がまえもつて定められた圧力以上で、か
つシリンダが縮み動作を行なつているときのみ回
生回路によりシリンダの動きを制御し、それ以外
の条件では４方切替弁を用いてシリンダの動きを
制御するようにしたことを特徴とするシリンダ駆
動装置。 The regeneration circuit consists of a hydraulic circuit that connects the rod side and the head side of the hydraulic cylinder via a flow control valve, and a hydraulic circuit that connects the rod side and the tank via the flow control valve, and a four-way switching valve. In a system having a circuit that drives a cylinder, the movement of the cylinder is controlled by the regenerative circuit only when the cylinder head pressure is above a predetermined pressure and the cylinder is performing a retracting operation; A cylinder drive device characterized in that the movement of the cylinder is controlled using a four-way switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278786U JPH0634443Y2 (en) | 1986-04-10 | 1986-04-10 | Cylinder drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278786U JPH0634443Y2 (en) | 1986-04-10 | 1986-04-10 | Cylinder drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62166302U true JPS62166302U (en) | 1987-10-22 |
| JPH0634443Y2 JPH0634443Y2 (en) | 1994-09-07 |
Family
ID=30878268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5278786U Expired - Lifetime JPH0634443Y2 (en) | 1986-04-10 | 1986-04-10 | Cylinder drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634443Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3849970B2 (en) * | 2001-01-15 | 2006-11-22 | 新キャタピラー三菱株式会社 | Hydraulic control circuit of boom cylinder in work machine |
| JP3846776B2 (en) * | 2001-02-06 | 2006-11-15 | 新キャタピラー三菱株式会社 | Hydraulic control circuit of boom cylinder in work machine |
| JP3846775B2 (en) * | 2001-02-06 | 2006-11-15 | 新キャタピラー三菱株式会社 | Hydraulic control circuit of boom cylinder in work machine |
-
1986
- 1986-04-10 JP JP5278786U patent/JPH0634443Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634443Y2 (en) | 1994-09-07 |