JPS6371251U - - Google Patents
Info
- Publication number
- JPS6371251U JPS6371251U JP16309186U JP16309186U JPS6371251U JP S6371251 U JPS6371251 U JP S6371251U JP 16309186 U JP16309186 U JP 16309186U JP 16309186 U JP16309186 U JP 16309186U JP S6371251 U JPS6371251 U JP S6371251U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- tractor
- bucket
- valves
- front loader
- 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
- 238000010586 diagram Methods 0.000 description 1
Description
図面は本考案の一実施例を示し、第１図は油圧
回路図、第２図はフロントローダ付きトラクタの
側面図である。
１……フロントローダ、２……トラクタ、９…
…作業機昇降用油圧機械（油圧機器）、１４……
リフトアーム、１５……リフトシリンダ、１６…
…バケツト、１７……バケツトシリンダ、２０，
２１……第１・第２比例電磁弁、２３……油圧ポ
ンプ、２４……切換弁。
The drawings show one embodiment of the present invention, and FIG. 1 is a hydraulic circuit diagram, and FIG. 2 is a side view of a tractor with a front loader. 1...front loader, 2...tractor, 9...
...Hydraulic machine for lifting and lowering work equipment (hydraulic equipment), 14...
Lift arm, 15...Lift cylinder, 16...
...bucket cylinder, 17...bucket cylinder, 20,
21...First and second proportional solenoid valves, 23...Hydraulic pump, 24...Switching valve.
Claims (1)
ダ１が備えられ、フロントローダ１は、トラクタ
２に枢支されたリフトアーム１４と、リフトアー
ム１４を昇降させる複動式リフトシリンダ１５と
、リフトアーム１４先端部に枢支されたバケツト
１６と、バケツト１６を回動させる複動式バケツ
トシリンダ１７と、各シリンダ１６，１７を夫々
制御する比例電磁弁２０，２１とを有し、油圧ポ
ンプ２３、各電磁弁２０，２１、油圧機器９が直
列に接続されたものにおいて、 各電磁弁２０，２１は、ポンプポート、リター
ンポート、２個のシリンダポートのみを有する４
ポートタイプとされ、両電磁弁２０，２１と油圧
機器９間に切換弁２４が介装され、切換弁２４は
、両電磁弁２０，２１と油圧機器９とを接続する
供給位置と、両電磁弁２０，２１とタンクとを接
続する排出位置とに切換自在とされたことを特徴
とするフロントローダ付きトラクタにおける油圧
装置。[Claims for Utility Model Registration] A front loader 1 is provided on a tractor 2 having a hydraulic device 9, and the front loader 1 includes a lift arm 14 pivotally supported on the tractor 2, and a double-acting lift that raises and lowers the lift arm 14. A cylinder 15, a bucket 16 pivotally supported at the tip of the lift arm 14, a double-acting bucket cylinder 17 that rotates the bucket 16, and proportional solenoid valves 20 and 21 that control the cylinders 16 and 17, respectively. In the case where the hydraulic pump 23, each electromagnetic valve 20, 21, and the hydraulic equipment 9 are connected in series, each electromagnetic valve 20, 21 has only a pump port, a return port, and two cylinder ports.
It is a port type, and a switching valve 24 is interposed between both electromagnetic valves 20, 21 and the hydraulic equipment 9, and the switching valve 24 has a supply position connecting both electromagnetic valves 20, 21 and the hydraulic equipment 9, A hydraulic system for a tractor with a front loader, characterized in that it can be freely switched to a discharge position connecting valves 20, 21 and a tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16309186U JPS6371251U (en) | 1986-10-23 | 1986-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16309186U JPS6371251U (en) | 1986-10-23 | 1986-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6371251U true JPS6371251U (en) | 1988-05-13 |
Family
ID=31090966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16309186U Pending JPS6371251U (en) | 1986-10-23 | 1986-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6371251U (en) |
-
1986
- 1986-10-23 JP JP16309186U patent/JPS6371251U/ja active Pending
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