JPS5618085A - Operation control device for hydraulic machinery - Google Patents
Operation control device for hydraulic machineryInfo
- Publication number
- JPS5618085A JPS5618085A JP9154879A JP9154879A JPS5618085A JP S5618085 A JPS5618085 A JP S5618085A JP 9154879 A JP9154879 A JP 9154879A JP 9154879 A JP9154879 A JP 9154879A JP S5618085 A JPS5618085 A JP S5618085A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- tripped
- microcomputer
- motor
- switch 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
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent troubles in a tripped hydraulic machine by controlling the pipe resistance on the discharge side by means of a trip signal for preventing the operation of excessive discharge.
CONSTITUTION: When a pump 1B is tripped, the trip signal of a motor 2B, that is, the change of the electric current in the motor 2B is transmitted to a microcomputer 9. Then, a main switch valve 4A on a main pipe line 7A of a pump 1A is rapidly closed via a controller 10, while an auxiliary switch valve 6A on a bypass line 8A of the pump 1A is rapidly opened. Consequently, as the microcomputer 9 storing the pump characteristics and the operation mode is operated, the system head is transferred from a system head L2 of the main pipe line 7A from that L1 of the bypass line 8A, and a transient operation can be avoided for preventing troubles.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9154879A JPS5618085A (en) | 1979-07-20 | 1979-07-20 | Operation control device for hydraulic machinery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9154879A JPS5618085A (en) | 1979-07-20 | 1979-07-20 | Operation control device for hydraulic machinery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5618085A true JPS5618085A (en) | 1981-02-20 |
Family
ID=14029533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9154879A Pending JPS5618085A (en) | 1979-07-20 | 1979-07-20 | Operation control device for hydraulic machinery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5618085A (en) |
-
1979
- 1979-07-20 JP JP9154879A patent/JPS5618085A/en active Pending
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