PL431278A1 - Valve block for hydraulic mining prop - Google Patents
Valve block for hydraulic mining propInfo
- Publication number
- PL431278A1 PL431278A1 PL431278A PL43127819A PL431278A1 PL 431278 A1 PL431278 A1 PL 431278A1 PL 431278 A PL431278 A PL 431278A PL 43127819 A PL43127819 A PL 43127819A PL 431278 A1 PL431278 A1 PL 431278A1
- Authority
- PL
- Poland
- Prior art keywords
- seat
- valve
- valve block
- piston chamber
- mining stand
- Prior art date
Links
- 238000005065 mining Methods 0.000 title abstract 6
Landscapes
- Multiple-Way Valves (AREA)
- Safety Valves (AREA)
Abstract
Prostopadłościenny korpus (1) bloku zaworowego ma przelotowe, wielostopniowe gniazdo (2), w którym z jednego końca osadzony jest pierwszy zawór zwrotny sterowany (3), a w drugim końcu dołączony jest miernik ciśnienia (M1) połączony z komorą podtłokową stojaka górniczego. Do gniazda (2) dochodzą poprzecznie z jednego boku dwa przyłącza (4) rozdzielacza sterującego i jedno przyłącze (5) komory podtłokowej stojaka górniczego. Na przeciwnym boku korpusu (1) są dwa gniazda: drugie gniazdo (6), w którym osadzony jest drugi zawór zwrotny sterowany (7) oraz trzecie gniazdo (12) z zaworem progowym (13). Drugie gniazdo (6) połączone jest z przelotowym wielostopniowym gniazdem (2) dwoma wewnętrznymi kanałami (8, 9). Do trzeciego gniazda (12) dochodzą poprzeczne kanały (15, 19) z poprzecznie usytuowanych zaworów zwrotnych wlotowego (17) i wylotowego (21), oraz wewnętrzny kanał (14) z przelotowego wielostopniowego gniazda (2). Do wewnętrznego kanału (14) dochodzi równolegle kanał (22) bocznikujący zawór progowy (13). Do drugiego zaworu zwrotnego sterowanego (7) przyłączony może być wskaźnik ciśnienia (M2) i dochodzi poprzeczne przyłącze (10) komory nadtłokowej stojaka górniczego. Blok zaworowy pozwala na automatyczne doładowanie stojaka górniczego oraz na bieżącą ocenę stanu uszczelnień stojaka górniczego.The rectangular body (1) of the valve block has a through, multi-stage seat (2) in which a first controlled check valve (3) is mounted at one end, and a pressure gauge (M1) connected to the piston chamber of the mining stand is attached at the other end. There are two connections (4) of the control distributor and one connection (5) of the piston chamber of the mining stand transversely connected to the socket (2) on one side. On the opposite side of the body (1) there are two seats: the second seat (6), in which the second controlled check valve (7) is mounted, and the third seat (12) with the threshold valve (13). The second seat (6) is connected to the through-going multi-stage seat (2) by two internal channels (8, 9). The third seat (12) is joined by transverse channels (15, 19) from the transversely arranged inlet (17) and exhaust (21) check valves, and an internal channel (14) from a through-going multi-stage seat (2). The inner channel (14) is joined in parallel by the channel (22) bypassing the threshold valve (13). A pressure indicator (M2) can be connected to the second controlled check valve (7) and there is a transverse connection (10) of the piston chamber of the mining stand. The valve block allows for automatic recharging of the mining stand and for the current assessment of the condition of the seals of the mining stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL431278A PL243145B1 (en) | 2019-09-26 | 2019-09-26 | Valve block for hydraulic mining prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL431278A PL243145B1 (en) | 2019-09-26 | 2019-09-26 | Valve block for hydraulic mining prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL431278A1 true PL431278A1 (en) | 2021-04-06 |
| PL243145B1 PL243145B1 (en) | 2023-07-03 |
Family
ID=75297876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL431278A PL243145B1 (en) | 2019-09-26 | 2019-09-26 | Valve block for hydraulic mining prop |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL243145B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL132073U1 (en) * | 2024-03-28 | 2025-09-29 | Centrum Hydrauliki Doh Spółka Z Ograniczoną Odpowiedzialnością | Valve block, especially for hydraulic stand |
-
2019
- 2019-09-26 PL PL431278A patent/PL243145B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL243145B1 (en) | 2023-07-03 |
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