JPS5470551A - Hydraulic circuit of hydraulic crane - Google Patents
Hydraulic circuit of hydraulic craneInfo
- Publication number
- JPS5470551A JPS5470551A JP13581377A JP13581377A JPS5470551A JP S5470551 A JPS5470551 A JP S5470551A JP 13581377 A JP13581377 A JP 13581377A JP 13581377 A JP13581377 A JP 13581377A JP S5470551 A JPS5470551 A JP S5470551A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- working
- crane
- pump
- selector
- 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
Abstract
PURPOSE: To accomplish the optimal operation at a power according to the intended working through a proper switching of the turning and the boom elevation or the oil feed amount to respective actuators for winch and the like according to crane and bucket working or other intended working.
CONSTITUTION: In crane working, when with a selector 6 set at a position as indicated in the drawing, a prime mover 1 is driven, oil delivered from a pump 31 is fed to a winch circuit 81 or a running circuit 84 through a passage 41 and a direction control valve 71, while oil delivered from a pump 32 to a boom elevation circuit 82 or a running circuit 85 through a passage 42, a selector 6, and a direction control valve 72 and the oil delivered from a pump 33 to a elevation circuit 83 whereby a given crane working is performed. In bucket working herein, with the selector 6 switched to the lower position, pressure oil from a high output variable displacement pump 32 is fed to the elevation circuit 83, therey accomplishing efficient turning work.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581377A JPS5470551A (en) | 1977-11-11 | 1977-11-11 | Hydraulic circuit of hydraulic crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581377A JPS5470551A (en) | 1977-11-11 | 1977-11-11 | Hydraulic circuit of hydraulic crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5470551A true JPS5470551A (en) | 1979-06-06 |
Family
ID=15160405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13581377A Pending JPS5470551A (en) | 1977-11-11 | 1977-11-11 | Hydraulic circuit of hydraulic crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5470551A (en) |
-
1977
- 1977-11-11 JP JP13581377A patent/JPS5470551A/en active Pending
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