JPS63171704U - - Google Patents
Info
- Publication number
- JPS63171704U JPS63171704U JP6501587U JP6501587U JPS63171704U JP S63171704 U JPS63171704 U JP S63171704U JP 6501587 U JP6501587 U JP 6501587U JP 6501587 U JP6501587 U JP 6501587U JP S63171704 U JPS63171704 U JP S63171704U
- Authority
- JP
- Japan
- Prior art keywords
- oil supply
- pressure oil
- hydraulic motor
- main circuit
- valve
- 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
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は、本考案の実施例に係る制御回路図、
第２図は、従来の制御回路図、第３図は、従来の
ブレーキ弁の断面図、第４図は、時間とブレーキ
力の特性曲線図である。
Ｃ１，Ｃ２…圧油給排主回路、Ｂ１，Ｂ２，Ｂ
１′，Ｂ２′…ブレーキ弁、Ｋ，Ｋ′…カウンタ
バランス弁、Ｋ４１，Ｋ４２…復帰速度制御弁、
Ｍ５０，Ｍ５０′…ばねブレーキ装置、Ｍ５…ブ
レーキ制御シリンダ、Ｍ５１…圧力室、Ｍ５２…
ばね、Ｍ５３…ばね室、Ｅ…制御弁、Ｅ１，Ｅ２
…パイロツト部、Ｅ３０…中立位置、Ｅ３１，Ｅ
３２…切換位置。
FIG. 1 is a control circuit diagram according to an embodiment of the present invention;
FIG. 2 is a conventional control circuit diagram, FIG. 3 is a sectional view of a conventional brake valve, and FIG. 4 is a characteristic curve diagram of time and braking force. C1, C2...Pressure oil supply/discharge main circuit, B1, B2, B
1', B2'...brake valve, K, K'...counter balance valve, K41, K42...return speed control valve,
M50, M50'... Spring brake device, M5... Brake control cylinder, M51... Pressure chamber, M52...
Spring, M53...Spring chamber, E...Control valve, E1, E2
...Pilot part, E30...Neutral position, E31, E
32...Switching position.
Claims (1)
に接続するパイロツト部を有するカウンタバラン
ス弁を介して油圧モータに接続すると共に、この
油圧モータと並列にブレーキ弁を接続し、前記油
圧モータには前記圧油給排主回路が接続するブレ
ーキ制御シリンダが設けてあるばねブレーキ装置
を有する油圧モータの制御回路において、前記油
圧モータのばねブレーキ装置のブレーキ制御シリ
ンダと前記圧油給排主回路との間に制御弁を設け
、この制御弁を、前記圧油給排主回路の各々に接
続するパイロツト部と、前記ブレーキ制御シリン
ダをタンクへ接続する中立位置と、前記パイロツ
ト部に作用する油圧で切り換つたとき前記ブレー
キ制御シリンダを高圧側に圧油給排主回路に接続
する切換位置とを有する構成とし、前記カウンタ
バランス弁のパイロツト部と圧油給排主回路との
間に、復帰遅延速度制御弁を設けたことを、特徴
とする油圧モータの制御回路。 A pressure oil supply/discharge main circuit is connected to the hydraulic motor via a counterbalance valve having a pilot portion connected to each of the pressure oil supply/discharge main circuits, and a brake valve is connected in parallel with the hydraulic motor. In a control circuit for a hydraulic motor having a spring brake device in which the hydraulic motor is provided with a brake control cylinder to which the pressure oil supply/discharge main circuit is connected, the brake control cylinder of the spring brake device of the hydraulic motor and the pressure oil supply/discharge main circuit are connected. A control valve is provided between the control valve and the main circuit, and this control valve is connected to a pilot section that connects each of the pressure oil supply/drainage main circuits, a neutral position that connects the brake control cylinder to the tank, and a control valve that acts on the pilot section. and a switching position in which the brake control cylinder is connected to the pressure oil supply/discharge main circuit on the high pressure side when switched by the hydraulic pressure, and a switch is provided between the pilot portion of the counterbalance valve and the pressure oil supply/discharge main circuit. A control circuit for a hydraulic motor, characterized in that a return delay speed control valve is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6501587U JPS63171704U (en) | 1987-04-28 | 1987-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6501587U JPS63171704U (en) | 1987-04-28 | 1987-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63171704U true JPS63171704U (en) | 1988-11-08 |
Family
ID=30901701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6501587U Pending JPS63171704U (en) | 1987-04-28 | 1987-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171704U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333115U (en) * | 1976-08-26 | 1978-03-23 | ||
| JPS5530520A (en) * | 1978-08-22 | 1980-03-04 | Teijin Seiki Co Ltd | Liquid pressure circuit |
-
1987
- 1987-04-28 JP JP6501587U patent/JPS63171704U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333115U (en) * | 1976-08-26 | 1978-03-23 | ||
| JPS5530520A (en) * | 1978-08-22 | 1980-03-04 | Teijin Seiki Co Ltd | Liquid pressure circuit |