JPH01101304U - - Google Patents
Info
- Publication number
- JPH01101304U JPH01101304U JP19849787U JP19849787U JPH01101304U JP H01101304 U JPH01101304 U JP H01101304U JP 19849787 U JP19849787 U JP 19849787U JP 19849787 U JP19849787 U JP 19849787U JP H01101304 U JPH01101304 U JP H01101304U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- oil
- hydraulic pump
- pressure
- power steering
- 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
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
Description
図面は本考案に係る農用トラクタの油圧接続構
造の実施例を示し、第１図は要部の切欠側面図、
第２図は第１図の―線断面図、第３図は要部
の一部切欠平面図、第４図は第３図の―線断
面図、第５図は油圧回路図、第６図は農用トラク
タの全体側面図である。
９……パワーステアリング用油圧装置、１０…
…リフトアーム昇降用油圧装置、３３……アタツ
チメント用油圧装置、１２……油圧ポンプ、１４
……油路切換え装置、１５……主リリーフ弁、１
６……フロープライオリテイバルブ、２７……戻
り油路、２８……戻り油路。
The drawings show an embodiment of the hydraulic connection structure for an agricultural tractor according to the present invention, and FIG. 1 is a cutaway side view of the main parts;
Figure 2 is a sectional view taken along the line - - of Figure 1, Figure 3 is a partially cutaway plan view of the main part, Figure 4 is a sectional view taken along the line - - of Figure 3, Figure 5 is a hydraulic circuit diagram, and Figure 6. is an overall side view of the agricultural tractor. 9... Hydraulic system for power steering, 10...
...Hydraulic device for lift arm elevation, 33...Hydraulic device for attachment, 12...Hydraulic pump, 14
...Oil passage switching device, 15...Main relief valve, 1
6...Flow priority valve, 27...Return oil path, 28...Return oil path.
Claims (1)
アーム昇降用油圧装置１０に供給する状態と、前
記圧油をアタツチメント用油圧装置を経由した後
に、前記油圧装置１０に供給する状態とに切換操
作可能な油路切換え装置１４を機体前部に配備す
るとともに、この油路切換え装置１４に主リリー
フ弁１５及びフロープライオリテイバルブ１６を
内装し、このフロープライオリテイバルブ１６の
制御流をパワーステアリング用油圧装置９に供給
するよう構成してある農用トラクタの油圧接続構
造であつて、前記油路切換え装置１４を前記油圧
ポンプ１２に直結取付するとともに、油圧ポンプ
１２の吸入側接続金具２６に、前記主リリーフ弁
１５の戻り油路２７及び前記パワーステアリング
用油圧装置９の戻り油路２８を配管接続してある
農用トラクタの油圧接続構造。 It is possible to switch between a state in which the pressure oil from the hydraulic pump 12 is supplied to the hydraulic device 10 for lifting and lowering the lift arm at the rear of the aircraft body, and a state in which the pressure oil is supplied to the hydraulic device 10 after passing through the attachment hydraulic device. A main relief valve 15 and a flow priority valve 16 are installed inside the oil path switching device 14, and the control flow of the flow priority valve 16 is connected to the hydraulic pressure for power steering. This is a hydraulic connection structure for an agricultural tractor configured to supply oil to a device 9, in which the oil path switching device 14 is directly connected to the hydraulic pump 12, and the main oil is connected to the suction side connection fitting 26 of the hydraulic pump 12. A hydraulic connection structure for an agricultural tractor in which a return oil passage 27 of a relief valve 15 and a return oil passage 28 of the power steering hydraulic system 9 are connected via piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19849787U JPH01101304U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19849787U JPH01101304U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01101304U true JPH01101304U (en) | 1989-07-07 |
Family
ID=31489002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19849787U Pending JPH01101304U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01101304U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578903B2 (en) * | 1976-05-20 | 1982-02-18 |
-
1987
- 1987-12-25 JP JP19849787U patent/JPH01101304U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578903B2 (en) * | 1976-05-20 | 1982-02-18 |
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