PL406294A1 - Method and hydraulic system for monitoring of the hydraulic props strutting, preferably the mining lining prop - Google Patents
Method and hydraulic system for monitoring of the hydraulic props strutting, preferably the mining lining propInfo
- Publication number
- PL406294A1 PL406294A1 PL406294A PL40629413A PL406294A1 PL 406294 A1 PL406294 A1 PL 406294A1 PL 406294 A PL406294 A PL 406294A PL 40629413 A PL40629413 A PL 40629413A PL 406294 A1 PL406294 A1 PL 406294A1
- Authority
- PL
- Poland
- Prior art keywords
- hydraulic support
- hydraulic
- monitoring
- mining
- support
- Prior art date
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
Wynalazek dotyczy sposobu monitorowania rozparcia podpory hydraulicznej, zwłaszcza stojaka obudowy górniczej, znajdującego zastosowanie zwłaszcza w sekcji górniczej obudowy zmechanizowanej. Sposób polega na tym, że przy pomiarze ciśnienia medium tylko w komorze podtłokowej (2) podpory hydraulicznej (1), dokonuje się pomiaru prędkości spadku ciśnienia medium w komorze podtłokowej (2) i gdy prędkość ta jest większa od prędkości spadku ciśnienia, występującego w trakcie rabowania podpory hydraulicznej (1), stan ten sygnalizuje się jako niepożądany. Układ do realizacji sposobu ma włączony między komorę podtłokową (2) podpory hydraulicznej (1), a miernik ciśnienia (8) zawór przełączający (7), korzystnie rozdzielacz trójdrogowy, dwu położeniowy, normalnie otwarty, sterowany hydraulicznie, który połączony jest jednym przewodem sterującym (14) z wejściem (13a) zaworu zwrotnego sterowanego (13), a drugim przewodem sterującym (15) z wyjściem (13b) zaworu zwrotnego sterowanego (13), zainstalowanego na przewodzie spływowym (12) przyłączem do komory nadtłokowej (11) podpory hydraulicznej (1), przy czym zawór zwrotny sterowany (4) na przewodzie zasilającym (3) wyposażony jest w dławik (4a).The invention relates to a method of monitoring the spread of a hydraulic support, in particular a mining support stand, applicable in particular to the mining section of a power support. The method consists in that when measuring the pressure of the medium only in the plunger chamber (2) of the hydraulic support (1), the rate of pressure drop of the medium in the plunger chamber (2) is measured and when this speed is greater than the pressure drop rate occurring during robbing the hydraulic support (1), this state is signaled as undesirable. The system for implementing the method is connected between the piston chamber (2) of the hydraulic support (1) and the pressure gauge (8) the switching valve (7), preferably a three-way distributor, two positions, normally open, hydraulically controlled, which is connected by one control line ( 14) with the input (13a) of the controlled non-return valve (13) and the second control line (15) with the output (13b) of the controlled non-return valve (13), installed on the discharge line (12) with a connection to the over-piston chamber (11) of the hydraulic support ( 1), the controlled check valve (4) on the supply line (3) is equipped with a gland (4a).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL406294A PL406294A1 (en) | 2013-11-28 | 2013-11-28 | Method and hydraulic system for monitoring of the hydraulic props strutting, preferably the mining lining prop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL406294A PL406294A1 (en) | 2013-11-28 | 2013-11-28 | Method and hydraulic system for monitoring of the hydraulic props strutting, preferably the mining lining prop |
Publications (1)
Publication Number | Publication Date |
---|---|
PL406294A1 true PL406294A1 (en) | 2015-06-08 |
Family
ID=53269108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL406294A PL406294A1 (en) | 2013-11-28 | 2013-11-28 | Method and hydraulic system for monitoring of the hydraulic props strutting, preferably the mining lining prop |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL406294A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9739148B2 (en) | 2014-08-28 | 2017-08-22 | Joy Mm Delaware, Inc. | Roof support monitoring for longwall system |
-
2013
- 2013-11-28 PL PL406294A patent/PL406294A1/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9739148B2 (en) | 2014-08-28 | 2017-08-22 | Joy Mm Delaware, Inc. | Roof support monitoring for longwall system |
US10184338B2 (en) | 2014-08-28 | 2019-01-22 | Joy Global Underground Mining Llc | Roof support monitoring for longwall system |
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