SU464701A1 - Device for unloading hydraulic shaft mine supports - Google Patents
Device for unloading hydraulic shaft mine supportsInfo
- Publication number
- SU464701A1 SU464701A1 SU1971898A SU1971898A SU464701A1 SU 464701 A1 SU464701 A1 SU 464701A1 SU 1971898 A SU1971898 A SU 1971898A SU 1971898 A SU1971898 A SU 1971898A SU 464701 A1 SU464701 A1 SU 464701A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydraulic shaft
- unloading hydraulic
- shaft mine
- mine supports
- supports
- Prior art date
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
Предмет изобретени Subject invention
Устройство дл разгрузки гидростойки шахтной крепи, включающее разгрузочный клалан и толкатель с поршнем, отличающеес тем, что, с целью уменьшени усилий оиератора при разгрузке креп.н, рабоча полость гидростойки, чорез управл емый золотник, сообше«а с поршневой полостью толкател разгрузочного клапана.A device for unloading hydraulic shaft mine supports, including a relief valve and a plunger with a piston, characterized in that, in order to reduce the forces of the actuator during unloading, the working chamber of the hydraulic column, which is controlled by the spool, connects the relief valve with the piston cavity.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1971898A SU464701A1 (en) | 1973-11-19 | 1973-11-19 | Device for unloading hydraulic shaft mine supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1971898A SU464701A1 (en) | 1973-11-19 | 1973-11-19 | Device for unloading hydraulic shaft mine supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU464701A1 true SU464701A1 (en) | 1975-03-25 |
Family
ID=20568119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1971898A SU464701A1 (en) | 1973-11-19 | 1973-11-19 | Device for unloading hydraulic shaft mine supports |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU464701A1 (en) |
-
1973
- 1973-11-19 SU SU1971898A patent/SU464701A1/en active
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