JPS6345112U - - Google Patents
Info
- Publication number
- JPS6345112U JPS6345112U JP13918486U JP13918486U JPS6345112U JP S6345112 U JPS6345112 U JP S6345112U JP 13918486 U JP13918486 U JP 13918486U JP 13918486 U JP13918486 U JP 13918486U JP S6345112 U JPS6345112 U JP S6345112U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- lifting
- lowering
- solenoid valve
- closing
- 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
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の制御装置のフローチヤートを
示す図面、第２図は制御装置のセンサーである田
植機のフロート９の上下回動を示した図面、第３
図は３個の電磁弁ａ・ｂ・ｃの作動状態を示す図
面、第４図は本考案の作業機昇降用油圧制御バル
ブの回路図、第５図は本考案の油圧制御バルブの
構成を示す図面であり、第８図のＤ―Ｄ断面矢視
図、第６図は同じく第１０図のＢ―Ｂ断面矢視図
、第７図は同じく第１０図のＡ―Ａ断面矢視図、
第８図は同じく第１０図のＦ―Ｆ断面矢視図、第
９図は同じく第８図のＥ―Ｅ断面矢視図、第１０
図は第８図のＣ―Ｃ断面矢視図である。
Ｖ……バルブケース、ａ……フロコン電磁弁、
ｂ……上げ用電磁弁、ｃ……下げ用電磁弁、１…
…バルブリリーフ弁、２……アンロード弁、３…
…フロコンリリーフ弁、４……昇降用フロコン弁
、５……下げチエツク弁。
Fig. 1 is a drawing showing a flowchart of the control device of the present invention, Fig. 2 is a drawing showing the vertical movement of the rice transplanter float 9, which is a sensor of the control device, and Fig. 3
The figure shows the operating states of three solenoid valves a, b, and c. Figure 4 is a circuit diagram of the hydraulic control valve for lifting and lowering work equipment of the present invention. Figure 5 shows the configuration of the hydraulic control valve of the present invention. 8, FIG. 6 is a cross-sectional view taken along B-B in FIG. 10, and FIG. 7 is a cross-sectional view taken along A-A in FIG. 10. ,
Figure 8 is a cross-sectional view taken along the line FF in Figure 10, and Figure 9 is a cross-sectional view taken along line E-E in Figure 8.
The figure is a cross-sectional view taken along the line CC in FIG. V...Valve case, a...Flocon solenoid valve,
b... solenoid valve for raising, c... solenoid valve for lowering, 1...
... Valve relief valve, 2... Unload valve, 3...
...Flocon relief valve, 4...Float control valve for lifting, 5...Lowering check valve.
Claims (1)
降機構の油圧制御バルブにおいて、上昇操作を上
げ用電磁弁ｂによりアンロード弁２を閉鎖するこ
とにより行い、下降操作を下げ用電磁弁ｃにより
上げチエツク弁５を開くことにより行い、昇降速
度の緩急の切換え操作をフロコン電磁弁ａにより
、開放位置と絞り位置を有する昇降用フロコン弁
４を切換えることにより行う構成において、昇降
用フロコン弁４を上昇時と下降時の両方の場合に
絞り作用を行わしめたことを特徴とする作業機昇
降用油圧制御機構。 In a hydraulic control valve for a lifting mechanism that raises and lowers a working machine using a single-acting hydraulic cylinder, the raising operation is performed by closing the unloading valve 2 using the raising solenoid valve b, and the lowering operation is performed by closing the unloading valve 2 using the lowering solenoid valve c. 5, and the lifting speed is switched between slow and fast by using the float control solenoid valve a to switch the lifting float control valve 4 which has an open position and a throttle position. A hydraulic control mechanism for lifting and lowering a work machine, characterized in that a throttling action is performed in both cases of descent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986139184U JPH068649Y2 (en) | 1986-09-09 | 1986-09-09 | Hydraulic control mechanism for lifting work equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986139184U JPH068649Y2 (en) | 1986-09-09 | 1986-09-09 | Hydraulic control mechanism for lifting work equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6345112U true JPS6345112U (en) | 1988-03-26 |
| JPH068649Y2 JPH068649Y2 (en) | 1994-03-09 |
Family
ID=31044846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986139184U Expired - Lifetime JPH068649Y2 (en) | 1986-09-09 | 1986-09-09 | Hydraulic control mechanism for lifting work equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068649Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175311U (en) * | 1983-05-11 | 1984-11-22 | 株式会社 神崎高級工機製作所 | Agricultural tractor hydraulic system |
| JPS6115911U (en) * | 1984-07-05 | 1986-01-30 | 株式会社クボタ | tractor |
| JPS6140804U (en) * | 1984-08-17 | 1986-03-15 | 株式会社 神崎高級工機製作所 | Agricultural tractor work equipment control valve |
-
1986
- 1986-09-09 JP JP1986139184U patent/JPH068649Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175311U (en) * | 1983-05-11 | 1984-11-22 | 株式会社 神崎高級工機製作所 | Agricultural tractor hydraulic system |
| JPS6115911U (en) * | 1984-07-05 | 1986-01-30 | 株式会社クボタ | tractor |
| JPS6140804U (en) * | 1984-08-17 | 1986-03-15 | 株式会社 神崎高級工機製作所 | Agricultural tractor work equipment control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068649Y2 (en) | 1994-03-09 |
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