JPS6123506U - Hydraulic lifting control device - Google Patents
Hydraulic lifting control deviceInfo
- Publication number
- JPS6123506U JPS6123506U JP11001784U JP11001784U JPS6123506U JP S6123506 U JPS6123506 U JP S6123506U JP 11001784 U JP11001784 U JP 11001784U JP 11001784 U JP11001784 U JP 11001784U JP S6123506 U JPS6123506 U JP S6123506U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- control device
- oil path
- valve
- hydraulic circuit
- 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)
- Operation Control Of Excavators (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
【図面の簡単な説明】
図面はこの考案の実施例の一つを示し、第１図は全体油
圧回路図、第２図は全体斜視図である。
主な符号の説明、１・・・機体、２・・・油圧ポンプ、
５・・・ピストンロフト、６・・・油圧シリンダー、７
・・・主油圧回路−８・・・分流弁、１２・・・主油圧
回路、１８・・田一タリー耕耘装置、２０・・・リフト
ピストンロット、２１・・・油圧シリンダー、２２・・
・油圧伸縮装置、２３・・・分流油圧回路、２４・・・
復動油圧回路、２５・・・電磁式３位置４方弁、２６・
・・水平センサー、２７・・・分流リリーフ弁、２８・
・・戻り油路、２９・・・逆止弁、３１・・・バイパス
油路、３２・・・差圧感知弁、３３．３４・・・パイロ
ット油路。BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of this invention, with FIG. 1 being an overall hydraulic circuit diagram and FIG. 2 being an overall perspective view. Explanation of main symbols, 1...Airframe, 2...Hydraulic pump,
5... Piston loft, 6... Hydraulic cylinder, 7
...Main hydraulic circuit-8...Diversion valve, 12...Main hydraulic circuit, 18...Taichi tally tilling device, 20...Lift piston rod, 21...Hydraulic cylinder, 22...
・Hydraulic expansion and contraction device, 23... Branch hydraulic circuit, 24...
Double acting hydraulic circuit, 25...Solenoid type 3 position 4 way valve, 26...
・・Horizontal sensor, 27・・Diversion relief valve, 28・
...Return oil path, 29...Check valve, 31...Bypass oil path, 32...Differential pressure sensing valve, 33.34...Pilot oil path.
Claims (1)
流弁を介して別の作動部を制御する油圧制御装置を設け
、この油圧制御装置の分流油圧回路の戻り油路を逆止弁
を介して主油圧回路側に連通ずるとともに、上記戻り油
路における逆止弁より上位から設けたタンクへのバイパ
ス油路に油圧昇降装置における主リリーフ弁のパイロッ
ト圧と上記逆止弁以降の主油圧回路側からのパイロット
圧を受ける差圧感知弁を介装して、上記両パイロット圧
が略等しくなったときに上記差圧感知弁を作動してバイ
パス油路をタンクヘ連通するよう構成したことを特徴と
する油圧昇降制御装置。A hydraulic control device is provided that controls another operating part via a branch valve installed in the main hydraulic circuit to the hydraulic lifting device installed in the aircraft, and the return oil path of the branch hydraulic circuit of this hydraulic control device is connected to a check valve. The pilot pressure of the main relief valve in the hydraulic lifting device and the main pressure after the check valve are connected to the bypass oil path to the tank provided from above the check valve in the return oil path. A differential pressure sensing valve that receives pilot pressure from the hydraulic circuit side is interposed, and when the two pilot pressures become approximately equal, the differential pressure sensing valve is operated to connect the bypass oil path to the tank. A hydraulic lift control device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11001784U JPS6123506U (en) | 1984-07-19 | 1984-07-19 | Hydraulic lifting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11001784U JPS6123506U (en) | 1984-07-19 | 1984-07-19 | Hydraulic lifting control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6123506U true JPS6123506U (en) | 1986-02-12 |
Family
ID=30669147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11001784U Pending JPS6123506U (en) | 1984-07-19 | 1984-07-19 | Hydraulic lifting control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6123506U (en) |
-
1984
- 1984-07-19 JP JP11001784U patent/JPS6123506U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6123506U (en) | Hydraulic lifting control device | |
| JPS58113311U (en) | tractor hydraulic circuit | |
| JPS60116405U (en) | Natural descent prevention hydraulic circuit | |
| JPH0218496U (en) | ||
| JPS6386404U (en) | ||
| JPS5979603U (en) | Hydraulic device for lifting work equipment | |
| JPH0266705U (en) | ||
| JPS5862802U (en) | Work equipment lifting device | |
| JPH0478351U (en) | ||
| JPS6182101U (en) | ||
| JPS59123097U (en) | Hydraulic circuit for forklift tilt cylinder | |
| JPS62180739U (en) | ||
| JPS61186807U (en) | ||
| JPS6420504U (en) | ||
| JPH0430809U (en) | ||
| JPS63171451U (en) | ||
| JPH0179908U (en) | ||
| JPS5978397U (en) | Forklift roll clamp | |
| JPH0330602U (en) | ||
| JPH01141902U (en) | ||
| JPH03122098U (en) | ||
| JPH02135600U (en) | ||
| JPH0219668U (en) | ||
| JPS58123896U (en) | Load stabilizer hydraulic circuit | |
| JPS58193104U (en) | End shock relaxation mechanism of working cylinder |