JPS5524213A - Apparatus for controlling speed of hydraulic actuator for remote control - Google Patents
Apparatus for controlling speed of hydraulic actuator for remote controlInfo
- Publication number
- JPS5524213A JPS5524213A JP9529378A JP9529378A JPS5524213A JP S5524213 A JPS5524213 A JP S5524213A JP 9529378 A JP9529378 A JP 9529378A JP 9529378 A JP9529378 A JP 9529378A JP S5524213 A JPS5524213 A JP S5524213A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic actuator
- remote control
- switch
- periods
- speed
- 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
Abstract
PURPOSE: To provide an apparatus for controlling speed of a hydraulic actuator for remote control, wherein the spool movement is adjusted by a sub-hydraulic actuator through changing the closing and opening periods of a switch, and therefore the speed of a main acutator can be easily controlled.
CONSTITUTION: A switch 29 is operated intermittently to desirably adjust the closed periods and opened periods of the switch 29. Thus a piston of a sub-hydraulic actuator 35 can be displaced from its neutral position to a certain right position or can be displaced to the neutral position, and thus the degree of opening if a valve groove of a spool of a change-over valve 31 can be freely changed to control the working speed of a main hydraulic actuator 27.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9529378A JPS5524213A (en) | 1978-08-04 | 1978-08-04 | Apparatus for controlling speed of hydraulic actuator for remote control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9529378A JPS5524213A (en) | 1978-08-04 | 1978-08-04 | Apparatus for controlling speed of hydraulic actuator for remote control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524213A true JPS5524213A (en) | 1980-02-21 |
Family
ID=14133720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9529378A Pending JPS5524213A (en) | 1978-08-04 | 1978-08-04 | Apparatus for controlling speed of hydraulic actuator for remote control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524213A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5060475A (en) * | 1990-05-29 | 1991-10-29 | Caterpillar Inc. | Pilot control circuit for load sensing hydraulic systems |
EP2218675A3 (en) * | 2009-02-11 | 2013-10-16 | STILL GmbH | Hydrostatic drive system for a mobile work machine |
-
1978
- 1978-08-04 JP JP9529378A patent/JPS5524213A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5060475A (en) * | 1990-05-29 | 1991-10-29 | Caterpillar Inc. | Pilot control circuit for load sensing hydraulic systems |
EP2218675A3 (en) * | 2009-02-11 | 2013-10-16 | STILL GmbH | Hydrostatic drive system for a mobile work machine |
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