JPS56147903A - Hydraulic cylinder provided with speed reduction mechanism - Google Patents
Hydraulic cylinder provided with speed reduction mechanismInfo
- Publication number
- JPS56147903A JPS56147903A JP4908480A JP4908480A JPS56147903A JP S56147903 A JPS56147903 A JP S56147903A JP 4908480 A JP4908480 A JP 4908480A JP 4908480 A JP4908480 A JP 4908480A JP S56147903 A JPS56147903 A JP S56147903A
- Authority
- JP
- Japan
- Prior art keywords
- reduction
- poppet
- cylinder
- control
- hydraulic cylinder
- 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)
Abstract
PURPOSE: To secure a stable operation through perfect flow control for decelection, by operating a drive hydraulic cylinder and a separate control cylinder during speed reduction and thus forming poppet control to logic elements.
CONSTITUTION: When a solenoid valve 21 is shifted to an advance location A, pressurized oil is exerted to the pilots of logic elements 19 and 20, and the pilot of a logic element 18 is connected to a tank 17. Therefore, the pressurized oil of a hydraulic pump 16 pushes up the poppet 18A of the element 18 and flows into a heat side chamber 11B of a drive cylinder 11 from its end and advances a driven member 12. A reduction mechanism 100 consisting of a solenoid valve 23, a control cylinder 52 and a logic element 51 is installed in place of a conventional reduction system 100 in a system like this. This reduction system 100 operates the control cylinder 50 when it receives reduction speed command and lowers a poppet 51A through a rod 52, thereby limiting the flow rate.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4908480A JPS56147903A (en) | 1980-04-14 | 1980-04-14 | Hydraulic cylinder provided with speed reduction mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4908480A JPS56147903A (en) | 1980-04-14 | 1980-04-14 | Hydraulic cylinder provided with speed reduction mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56147903A true JPS56147903A (en) | 1981-11-17 |
Family
ID=12821221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4908480A Pending JPS56147903A (en) | 1980-04-14 | 1980-04-14 | Hydraulic cylinder provided with speed reduction mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56147903A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59132901U (en) * | 1983-02-25 | 1984-09-06 | 豊興工業株式会社 | fluid control device |
JPS60222602A (en) * | 1984-04-20 | 1985-11-07 | Toshiba Mach Co Ltd | Hydraulic circuit for changing over relationship between speed and torque for multiple hydraulic motor |
JPS6169504U (en) * | 1984-10-11 | 1986-05-13 |
-
1980
- 1980-04-14 JP JP4908480A patent/JPS56147903A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59132901U (en) * | 1983-02-25 | 1984-09-06 | 豊興工業株式会社 | fluid control device |
JPH0239042Y2 (en) * | 1983-02-25 | 1990-10-19 | ||
JPS60222602A (en) * | 1984-04-20 | 1985-11-07 | Toshiba Mach Co Ltd | Hydraulic circuit for changing over relationship between speed and torque for multiple hydraulic motor |
JPS6169504U (en) * | 1984-10-11 | 1986-05-13 | ||
JPH058323Y2 (en) * | 1984-10-11 | 1993-03-02 |
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