JPS6285564U - - Google Patents
Info
- Publication number
- JPS6285564U JPS6285564U JP17854585U JP17854585U JPS6285564U JP S6285564 U JPS6285564 U JP S6285564U JP 17854585 U JP17854585 U JP 17854585U JP 17854585 U JP17854585 U JP 17854585U JP S6285564 U JPS6285564 U JP S6285564U
- Authority
- JP
- Japan
- Prior art keywords
- shovel
- steering
- hydraulic pump
- control valve
- hydraulic
- 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
- 238000010276 construction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Description
第１図は、この考案の一実施例を示す油圧回路
図、第２図、第３図は従来の油圧制御装置の油圧
回路図である。
図中、１はシヨベル用油圧ポンプ、３はシヨベ
ル用制御弁、４はシヨベル用シリンダ、７は操向
用油圧ポンプ、９は流量制御弁、１０は操向用制
御弁、１１は操向用シリンダ、１３……冷却器、
１４は合流管路、１９は切換弁である。
FIG. 1 is a hydraulic circuit diagram showing an embodiment of this invention, and FIGS. 2 and 3 are hydraulic circuit diagrams of a conventional hydraulic control device. In the figure, 1 is a shovel hydraulic pump, 3 is a shovel control valve, 4 is a shovel cylinder, 7 is a steering hydraulic pump, 9 is a flow control valve, 10 is a steering control valve, and 11 is for steering. Cylinder, 13...Cooler,
14 is a confluence pipe, and 19 is a switching valve.
Claims (1)
備え、シヨベル用油圧ポンプの吐出油は、全油量
がシヨベル用制御弁を介してシヨベル用油圧シリ
ンダへ供給され、操向用油圧ポンプの吐出油は、
操向に必要な所定油量が操向用制御弁を介して操
向用シリンダへ供給され、余剰の油量が操向用制
御弁からシヨベル用ポンプの吐出管路へ接続され
た合流管路を介してシヨベル用油圧ポンプの吐出
油と合流するように構成した建設車両の油圧制御
装置において、シヨベル用制御弁の不作動時に前
記合流管路を切換えて冷却器へ接続させる切換弁
を設けたことを特徴とする建設車両の油圧制御装
置。 Equipped with a steering hydraulic pump and a shovel hydraulic pump, the entire amount of oil discharged from the shovel hydraulic pump is supplied to the shovel hydraulic cylinder via the shovel control valve, teeth,
A confluence pipe in which a predetermined amount of oil required for steering is supplied to the steering cylinder via the steering control valve, and the surplus oil is connected from the steering control valve to the discharge pipe of the excavator pump. In a hydraulic control device for a construction vehicle configured to join discharge oil of a shovel hydraulic pump through a hydraulic pump, a switching valve is provided to switch the joining pipe line and connect it to a cooler when the shovel control valve is inoperable. A hydraulic control device for a construction vehicle characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17854585U JPH0333803Y2 (en) | 1985-11-20 | 1985-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17854585U JPH0333803Y2 (en) | 1985-11-20 | 1985-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6285564U true JPS6285564U (en) | 1987-06-01 |
| JPH0333803Y2 JPH0333803Y2 (en) | 1991-07-17 |
Family
ID=31120775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17854585U Expired JPH0333803Y2 (en) | 1985-11-20 | 1985-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333803Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266705U (en) * | 1988-07-06 | 1990-05-21 | ||
| JP2017114288A (en) * | 2015-12-24 | 2017-06-29 | Ｋｙｂ株式会社 | Mixer drum driving device |
-
1985
- 1985-11-20 JP JP17854585U patent/JPH0333803Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266705U (en) * | 1988-07-06 | 1990-05-21 | ||
| JP2017114288A (en) * | 2015-12-24 | 2017-06-29 | Ｋｙｂ株式会社 | Mixer drum driving device |
| WO2017110525A1 (en) * | 2015-12-24 | 2017-06-29 | Ｋｙｂ株式会社 | Mixer drum drive device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0333803Y2 (en) | 1991-07-17 |