JPS5597501A - Oil-hydraulic drive device - Google Patents
Oil-hydraulic drive deviceInfo
- Publication number
- JPS5597501A JPS5597501A JP523079A JP523079A JPS5597501A JP S5597501 A JPS5597501 A JP S5597501A JP 523079 A JP523079 A JP 523079A JP 523079 A JP523079 A JP 523079A JP S5597501 A JPS5597501 A JP S5597501A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- approx
- shut
- oil
- 100mmsec
- 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
- 238000007599 discharging Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To obtain a cheap oil-hydraulic drive device with high efficiency and secure performance by making the drive operation with variable rate-of-flow through the chopping action of a shut-off valve provided at a fixed discharge pump.
CONSTITUTION: Between a fixed discharge pump P and an oil pressure motor M, a shut-off valve of high accuracy 8 having such a short response characteristic as 10W40mmsec, is provided. By the on and off of this shut-off valve 8 with a quick pulse to change thereby the timing of said on and off with a speed change lever 1, the rate of flow of the oil is regulated. Even though the pulse generating interval is unchanged, i.e. 100mmsec approx., the period of time when the shut-off valve 8 is held open is so long as approx. 70mmsec in the case of low discharging and so short as approx. 20mmsec in the case of high discharging. During full discharge, the valve is full-closed for the whole interval, 100mmsec approx.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP523079A JPS5597501A (en) | 1979-01-20 | 1979-01-20 | Oil-hydraulic drive device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP523079A JPS5597501A (en) | 1979-01-20 | 1979-01-20 | Oil-hydraulic drive device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5597501A true JPS5597501A (en) | 1980-07-24 |
Family
ID=11605379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP523079A Pending JPS5597501A (en) | 1979-01-20 | 1979-01-20 | Oil-hydraulic drive device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5597501A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60241505A (en) * | 1984-05-15 | 1985-11-30 | Daifuku Co Ltd | Drive unit utilizing pneumatically operated actuator |
-
1979
- 1979-01-20 JP JP523079A patent/JPS5597501A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60241505A (en) * | 1984-05-15 | 1985-11-30 | Daifuku Co Ltd | Drive unit utilizing pneumatically operated actuator |
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