JPS6184754U - - Google Patents
Info
- Publication number
- JPS6184754U JPS6184754U JP17051984U JP17051984U JPS6184754U JP S6184754 U JPS6184754 U JP S6184754U JP 17051984 U JP17051984 U JP 17051984U JP 17051984 U JP17051984 U JP 17051984U JP S6184754 U JPS6184754 U JP S6184754U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- flow
- hydraulic oil
- valve
- directions
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Servomotors (AREA)
Description
第１図は、本考案による油圧回路を有するバツ
クホーの全体側面図、第２図は、同油圧回路、第
３図は、他実施例。
Ａ：バツクホー、５：油圧ポンプ、９：作動油
タンク、１２：油圧制御弁、１３：油圧切換弁、
２０：油圧アクチユエータ、２６，２６′：戻り
油管。
Fig. 1 is an overall side view of a vacuum hoe having a hydraulic circuit according to the present invention, Fig. 2 shows the same hydraulic circuit, and Fig. 3 shows another embodiment. A: Backhoe, 5: Hydraulic pump, 9: Hydraulic oil tank, 12: Hydraulic control valve, 13: Hydraulic switching valve,
20: Hydraulic actuator, 26, 26': Return oil pipe.
Claims (1)
路に、作動油の流れを正逆切換及び閉止可能とし
た油圧制御弁１２と、作動油の流れを二方向に分
岐切換可能とした油圧分岐弁１３を介設して、複
数の油圧作動機器を駆動制御すべく構成したバツ
クホーＡの油圧回路において、油圧アクチユエー
タ２０の復路側に、作動油の流れを二方向に分岐
し、かつ作動油の流れを二方向のうちのいずれか
一方に切換可能とした油圧切換弁１３を連通連結
し、同切換弁１３からの分岐した一方を、大内径
の戻り油管２６を介して直接作動油タンク９に連
通連結し、他方を油圧分岐弁１３及び油圧制御弁
１２を経由して作動油タンク９に連通連結してな
るバツクホーの油圧回路。 The hydraulic circuit between the hydraulic pump 5 and the hydraulic actuator is provided with a hydraulic control valve 12 that can switch the flow of hydraulic oil forward and reverse and close it, and a hydraulic branch valve 13 that can switch the flow of hydraulic oil in two directions. In the hydraulic circuit of the backhoe A configured to drive and control a plurality of hydraulically operated devices, the flow of hydraulic oil is divided into two directions on the return path side of the hydraulic actuator 20, and the flow of hydraulic oil is divided into two directions. A hydraulic switching valve 13 that can be switched is connected in communication with one of the switching valves, and the other branched from the switching valve 13 is directly connected in communication with the hydraulic oil tank 9 via a large inner diameter return oil pipe 26. The other side is connected to a hydraulic oil tank 9 via a hydraulic branch valve 13 and a hydraulic control valve 12 to form a hydraulic circuit for a backhoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17051984U JPS6184754U (en) | 1984-11-09 | 1984-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17051984U JPS6184754U (en) | 1984-11-09 | 1984-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6184754U true JPS6184754U (en) | 1986-06-04 |
Family
ID=30728226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17051984U Pending JPS6184754U (en) | 1984-11-09 | 1984-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6184754U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929322A (en) * | 1972-07-10 | 1974-03-15 | ||
| JPS53108601A (en) * | 1977-03-04 | 1978-09-21 | Komatsu Mfg Co Ltd | Device for laying goods to be laid uder ground |
-
1984
- 1984-11-09 JP JP17051984U patent/JPS6184754U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929322A (en) * | 1972-07-10 | 1974-03-15 | ||
| JPS53108601A (en) * | 1977-03-04 | 1978-09-21 | Komatsu Mfg Co Ltd | Device for laying goods to be laid uder ground |