PL417429A1 - Hydraulic mining prop - Google Patents

Hydraulic mining prop

Info

Publication number
PL417429A1
PL417429A1 PL417429A PL41742916A PL417429A1 PL 417429 A1 PL417429 A1 PL 417429A1 PL 417429 A PL417429 A PL 417429A PL 41742916 A PL41742916 A PL 41742916A PL 417429 A1 PL417429 A1 PL 417429A1
Authority
PL
Poland
Prior art keywords
hydraulic
pressure
stand
piston chamber
cylinder
Prior art date
Application number
PL417429A
Other languages
Polish (pl)
Other versions
PL232330B1 (en
Inventor
Leszek Kocot
Ryszard Diederichs
Original Assignee
Centrum Hydrauliki Doh Spółka Z Ograniczoną Odpowiedzialnością
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 Centrum Hydrauliki Doh Spółka Z Ograniczoną Odpowiedzialnością filed Critical Centrum Hydrauliki Doh Spółka Z Ograniczoną Odpowiedzialnością
Priority to PL417429A priority Critical patent/PL232330B1/en
Publication of PL417429A1 publication Critical patent/PL417429A1/en
Publication of PL232330B1 publication Critical patent/PL232330B1/en

Links

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Wynalazek dotyczy stojaka górniczego hydraulicznego, stosowanego w szczególności do obudowy indywidualnej wyrobisk górniczych. Stojak hydrauliczny (1) ma cylinder (2), w którym osadzony jest teleskopowo tłok (3). Cylinder (2) ma przyłącze (2"), do którego dołączony jest przewodem (4') zespół zamka hydraulicznego (4) z gniazdem ciśnieniowym (5) dla przyrządu zasilającego (6). Z kolei do przyłącza (3") komory nadtłokowej dołączony jest zespół pomiarowy (7), składający się z zaworu zamykającego (7') oraz manometru (7"). Zamknięcie zaworu zamykającego (7') w trakcie normalnej pracy stojaka hydraulicznego (1) łączy manometr (7") z komorą nadtłokową, co daje możliwość odczytu ciśnienia w tej komorze nadtłokowej. Brak ciśnienia świadczy o szczelności stojaka hydraulicznego (1), a gdy to ciśnienie się pojawia, można określić tendencję jego przyrostu w czasie, dającą podstawę do prognozy podporności stojaka hydraulicznego (1).The invention relates to a hydraulic mining stand, used in particular for individual housing of mining excavations. The hydraulic stand (1) has a cylinder (2) in which the piston (3) is telescopically mounted. The cylinder (2) has a connection (2 "), to which the hydraulic lock assembly (4) with a pressure socket (5) for the supply device (6) is connected by a pipe (4 '). In turn, the connection (3") of the piston chamber is connected there is a measuring unit (7), consisting of a closing valve (7 ') and a pressure gauge (7 "). Closing the closing valve (7') during normal operation of the hydraulic stand (1) connects the pressure gauge (7") with the piston chamber, which makes it possible to read the pressure in this over-piston chamber. Lack of pressure indicates the tightness of the hydraulic stand (1), and when this pressure occurs, you can determine the tendency of its increase in time, which gives the basis for forecasting the support of the hydraulic stand (1).

PL417429A 2016-06-07 2016-06-07 Hydraulic mining prop PL232330B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL417429A PL232330B1 (en) 2016-06-07 2016-06-07 Hydraulic mining prop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL417429A PL232330B1 (en) 2016-06-07 2016-06-07 Hydraulic mining prop

Publications (2)

Publication Number Publication Date
PL417429A1 true PL417429A1 (en) 2017-12-18
PL232330B1 PL232330B1 (en) 2019-06-28

Family

ID=60655672

Family Applications (1)

Application Number Title Priority Date Filing Date
PL417429A PL232330B1 (en) 2016-06-07 2016-06-07 Hydraulic mining prop

Country Status (1)

Country Link
PL (1) PL232330B1 (en)

Also Published As

Publication number Publication date
PL232330B1 (en) 2019-06-28

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