JPH0464601U - - Google Patents
Info
- Publication number
- JPH0464601U JPH0464601U JP10912190U JP10912190U JPH0464601U JP H0464601 U JPH0464601 U JP H0464601U JP 10912190 U JP10912190 U JP 10912190U JP 10912190 U JP10912190 U JP 10912190U JP H0464601 U JPH0464601 U JP H0464601U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- opening
- valve
- actuator
- open
- 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
- 239000012530 fluid Substances 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は、本考案に係るアキユムレータ補給用
回路の油圧回路図、第２図は、上記アキユムレー
タ補給用回路に備えられるシーケンスバルブユニ
ツトの断面図、第３図は、上記アキユムレータ補
給用回路を備えた高所作業車の斜視図、第４図は
、従来におけるアキユムレータ補給用回路の回路
図である。
１０……シーケンスバルブユニツト、１１，３
１……第１バルブ、１２，３２……第２バルブ、
２２……メインウインチ、２３……サブウインチ
、２５，２６……クラツチ、ＣＬ……開閉制御油
圧ライン、ＭＣ……メインクラツチシリンダ、Ｓ
Ｃ……サブクラツチシリンダ、Ａ……アキユムレ
ータ、ＷＭ……ウインチモータ、ＭＬ１……第１
作動油圧ライン。
FIG. 1 is a hydraulic circuit diagram of an accumulator replenishment circuit according to the present invention, FIG. 2 is a sectional view of a sequence valve unit provided in the above-mentioned accumulator replenishment circuit, and FIG. FIG. 4, which is a perspective view of the above-mentioned aerial work vehicle, is a circuit diagram of a conventional accumulator replenishment circuit. 10...Sequence valve unit, 11,3
1...first valve, 12,32...second valve,
22... Main winch, 23... Sub winch, 25, 26... Clutch, CL... Opening/closing control hydraulic line, MC... Main clutch cylinder, S
C...Sub clutch cylinder, A...Accumulator, WM...Winch motor, ML1...1st
Actuation hydraulic line.
Claims (1)
る第１アクチユエータおよび第２アクチユエータ
と、前記第２アクチユエータの作動油圧を蓄圧す
るアキユムレータとを有してなる油圧作動回路に
おいて、前記油圧源からの作動油の供給による前
記アキユムレータへの圧力補給制御を行うための
油圧作動回路におけるアキユムレータ補給用回路
であつて、 前記油圧源から供給される作動油圧に応じて前
記油圧源および前記第１アクチユエータを繋ぐ作
動油圧ラインを開通させるべく開作動可能な第１
バルブと、 前記第１バルブの開閉作動を制御すべく設けら
れ、一端は前記第１バルブに繋げられ、他端はド
レンラインに繋げられてなる開閉制御油圧ライン
と、 この開閉制御油圧ラインを開通させて前記第１
バルブの開作動を許容する一方、前記開閉制御油
圧ラインを閉止して前記第１バルブの開作動を阻
止する第２バルブとからなり、 この第２バルブは、前記アキユムレータの蓄圧
が所定保持圧まで上昇したとき、または、前記第
１アクチユエータの作動油圧が所定作動圧まで上
昇したときに、前記開閉制御油圧ラインを開通さ
せるべく開作動するよう構成したシーケンスバル
ブユニツトを備えたことを特徴とする油圧作動回
路におけるアキユムレータ補給用回路。[Claims for Utility Model Registration] Hydraulic operation comprising a first actuator and a second actuator driven by hydraulic fluid supplied from a hydraulic source, and an accumulator that accumulates the hydraulic pressure of the second actuator. In the circuit, an accumulator replenishment circuit in a hydraulic operation circuit for controlling pressure replenishment to the accumulator by supplying hydraulic oil from the hydraulic source, the hydraulic pressure increasing according to the hydraulic pressure supplied from the hydraulic source. a first actuator operable to open to open an actuating hydraulic line connecting the source and the first actuator;
a valve; an opening/closing control hydraulic line provided to control the opening/closing operation of the first valve and having one end connected to the first valve and the other end connected to a drain line; and opening/closing control hydraulic line. Let me say the first
and a second valve that allows the valve to open and closes the opening/closing control hydraulic line to prevent the first valve from opening. or when the hydraulic pressure of the first actuator rises to a predetermined operating pressure, the hydraulic pressure is characterized by comprising a sequence valve unit configured to open the opening/closing control hydraulic line to open the opening/closing control hydraulic line. Accumulator replenishment circuit in the operating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10912190U JPH0464601U (en) | 1990-10-18 | 1990-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10912190U JPH0464601U (en) | 1990-10-18 | 1990-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0464601U true JPH0464601U (en) | 1992-06-03 |
Family
ID=31856275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10912190U Pending JPH0464601U (en) | 1990-10-18 | 1990-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0464601U (en) |
-
1990
- 1990-10-18 JP JP10912190U patent/JPH0464601U/ja active Pending
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