JPS5947103U - Hydraulic supply device for agricultural hydraulic lift equipment - Google Patents
Hydraulic supply device for agricultural hydraulic lift equipmentInfo
- Publication number
- JPS5947103U JPS5947103U JP14399482U JP14399482U JPS5947103U JP S5947103 U JPS5947103 U JP S5947103U JP 14399482 U JP14399482 U JP 14399482U JP 14399482 U JP14399482 U JP 14399482U JP S5947103 U JPS5947103 U JP S5947103U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- hydraulic lift
- valve
- hydraulic pressure
- operating lever
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案の一実施例を装備した農用トラクタの
後部を示す側面図、第２図は同実施例の・油圧回路図、
第３図は同実施例要部の側面図、第４図は同要部の平面
図、第５図は同要部の正面図、第６図は同要部を第３図
とは逆方向からみた端面図、第７図は第５図の■−■線
に沿う縦断側面図、第８図及び第９図はそれぞれ、第７
図の■−■線及びＩＸ−ＩＸ線に沿う断面図、第１０図
は上記要部の一部展開縦断面図、第１１図はこの考案の
他の実施例の要部を示す油圧回路図である。
１・・・油圧リフト装置、４・・・油圧リフトアーム、
６・・・ハウジング、７・・・油圧リフトシリンダ、８
・・・ポジションコントロールバルブ、９・・・油圧Ｉ
Ｊソフト作レバー、１２・・・給油回路、１３・・・油
圧シリンダ、１４・・・外部油圧取出口、１４ａ・・・
油圧供給端、１４ｂ・・・油圧戻し端、１４Ａ・・・油
圧供給ポート、１４Ｂ・・・油圧戻しポート、１６・・
・可変絞り、１６Ａ・・・弁体、１７・・・ＩＪ ＩＪ
−フ弁、１７Ａ・・・弁体、１８・・・全流量フローコ
ントロールバルブ、１９・・・切換弁、１９Ａ・・・弁
体、２０・・・迂回回路、２１・・・遮断弁、２１Ａ・
・・弁“体、２２・・・パイロット油圧作用回路、２３
・・・他の切換弁、２３Ａ・・・スプール、３７・・・
フロコンバルブ装置、３８・・・バルブケース、４１Ｐ
・・・ポンプポート、４１ＴＩ、 ４１Ｔ２・・・タ
ンクポート、４１Ｃ・・・シリンダポート、６１・・・
スプリング、６３・・・スプリング、６４・・・プレー
ト、６５・・・ガイドスリーブ、６６・・・ブラケット
板、６７・・・ガイドバー、６８・・・接続金物、７０
・・・進退杆、７１・・・板体、７１ａ・・・長孔、７
２・・・ピン、９０・・・スプリング、１２１・・・遮
断弁。
−Ｗ ゛
＼ （２、／ ＝
′−＼ ／” Ｉ第５図
、Ｗ
１４Ｄ’１４Ｂ
キ膚需１−１ １ グ
第３図
４ｏシ／Fig. 1 is a side view showing the rear of an agricultural tractor equipped with an embodiment of this invention, and Fig. 2 is a hydraulic circuit diagram of the same embodiment.
Fig. 3 is a side view of the main part of the same embodiment, Fig. 4 is a plan view of the main part, Fig. 5 is a front view of the main part, and Fig. 6 shows the main part in the opposite direction from Fig. 3. 7 is a longitudinal sectional side view taken along the line ■-■ in FIG. 5, and FIGS. 8 and 9 are respectively
A sectional view taken along the lines ■-■ and IX-IX in the figure, FIG. 10 is a partially exploded longitudinal sectional view of the above-mentioned main parts, and FIG. 11 is a hydraulic circuit diagram showing the main parts of another embodiment of this invention. It is. 1... Hydraulic lift device, 4... Hydraulic lift arm,
6...Housing, 7...Hydraulic lift cylinder, 8
...Position control valve, 9...Hydraulic pressure I
J software operation lever, 12... Oil supply circuit, 13... Hydraulic cylinder, 14... External hydraulic pressure outlet, 14a...
Hydraulic supply end, 14b... Hydraulic return end, 14A... Hydraulic supply port, 14B... Hydraulic return port, 16...
・Variable throttle, 16A...valve body, 17...IJ IJ
- valve, 17A...valve body, 18...full flow flow control valve, 19...switching valve, 19A...valve body, 20...detour circuit, 21...shutoff valve, 21A・
... Valve body, 22 ... Pilot hydraulic action circuit, 23
...Other switching valves, 23A...Spool, 37...
Flocon valve device, 38...Valve case, 41P
...Pump port, 41TI, 41T2...Tank port, 41C...Cylinder port, 61...
Spring, 63... Spring, 64... Plate, 65... Guide sleeve, 66... Bracket plate, 67... Guide bar, 68... Connection hardware, 70
...Advancing/retracting rod, 71...Plate body, 71a...Long hole, 7
2...Pin, 90...Spring, 121...Shutoff valve. -W ゛＼ (2, / = ′-＼ /” I Fig. 5, W 14D'14B Ki skin demand 1-1 1 G Fig. 3 4o S/
Claims (1)
コントロールバルブを設け、この全流量フローコントロ
ールバルブによる制御流を外部油圧取出口から選択的に
取出し可能とする切換弁を設けると共に、該全流量フロ
ーコントロールバルブを迂回する迂回回路を上記給油回
路中に設けて、該迂回回路に油圧パイロット型の遮断弁
を挿入設置し、さらにこの遮断弁に対し該遮断弁−次側
の油圧をパイロット油圧として迩択的に作用させるため
の他の切換弁を設けて、該他の切換弁を油圧リフト操作
レバーに対し、油圧リフトアームを最上昇させる位置へ
と油圧リフト操作レバーが操作されると他の切換弁が上
記遮断弁を開放させる位置へと変化せしめられるように
連動連結しである、農用油圧リフト装置用の油圧供給装
置。A full flow rate flow control valve is provided in the oil supply circuit for the hydraulic lift cylinder, and a switching valve is provided that allows the flow controlled by the full flow rate flow control valve to be selectively taken out from an external hydraulic pressure outlet, and the full flow rate flow control valve is provided. A detour circuit is provided in the oil supply circuit, a hydraulic pilot type shutoff valve is inserted into the detour circuit, and the hydraulic pressure on the side next to the shutoff valve is optionally used as the pilot hydraulic pressure. Another switching valve is provided to act on the hydraulic lift operating lever, and when the hydraulic lift operating lever is operated to a position where the hydraulic lift arm is raised to the highest position, the other switching valve is set to the hydraulic lift operating lever. A hydraulic pressure supply device for an agricultural hydraulic lift device, which is interlocked and connected so that the shutoff valve is changed to a position where it is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14399482U JPS5947103U (en) | 1982-09-22 | 1982-09-22 | Hydraulic supply device for agricultural hydraulic lift equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14399482U JPS5947103U (en) | 1982-09-22 | 1982-09-22 | Hydraulic supply device for agricultural hydraulic lift equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5947103U true JPS5947103U (en) | 1984-03-29 |
Family
ID=30321242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14399482U Pending JPS5947103U (en) | 1982-09-22 | 1982-09-22 | Hydraulic supply device for agricultural hydraulic lift equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6169504U (en) * | 1984-10-11 | 1986-05-13 | ||
| JPS62176504U (en) * | 1986-04-28 | 1987-11-10 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643305B2 (en) * | 1977-08-24 | 1981-10-12 |
-
1982
- 1982-09-22 JP JP14399482U patent/JPS5947103U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643305B2 (en) * | 1977-08-24 | 1981-10-12 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6169504U (en) * | 1984-10-11 | 1986-05-13 | ||
| JPS62176504U (en) * | 1986-04-28 | 1987-11-10 |
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