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 prop

Info

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
Application number
PL406294A
Other languages
Polish (pl)
Inventor
Łukasz Bazan
Ryszard Diederichs
Wojciech Gajda
Krzysztof Ptak
Krzysztof Zych
Original Assignee
Kopex Electric Systems Spółka Akcyjna
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kopex Electric Systems Spółka Akcyjna filed Critical Kopex Electric Systems Spółka Akcyjna
Priority to PL406294A priority Critical patent/PL406294A1/en
Publication of PL406294A1 publication Critical patent/PL406294A1/en

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  • 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).

PL406294A 2013-11-28 2013-11-28 Method and hydraulic system for monitoring of the hydraulic props strutting, preferably the mining lining prop PL406294A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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