ZA802130B - Impovements in hydraulic control apparatus for controlling the operation of mine roof support props - Google Patents
Impovements in hydraulic control apparatus for controlling the operation of mine roof support propsInfo
- Publication number
- ZA802130B ZA802130B ZA00802130A ZA802130A ZA802130B ZA 802130 B ZA802130 B ZA 802130B ZA 00802130 A ZA00802130 A ZA 00802130A ZA 802130 A ZA802130 A ZA 802130A ZA 802130 B ZA802130 B ZA 802130B
- Authority
- ZA
- South Africa
- Prior art keywords
- impovements
- controlling
- control apparatus
- hydraulic control
- roof support
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Presses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2914884A DE2914884C2 (de) | 1979-04-12 | 1979-04-12 | Steuereinrichtung für einen hydraulischen Stempelausbau mit zugeordneter Nachsetzautomatik |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA802130B true ZA802130B (en) | 1981-05-27 |
Family
ID=6068183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00802130A ZA802130B (en) | 1979-04-12 | 1980-04-10 | Impovements in hydraulic control apparatus for controlling the operation of mine roof support props |
Country Status (8)
Country | Link |
---|---|
AU (1) | AU533562B2 (de) |
BE (1) | BE882725A (de) |
CA (1) | CA1138303A (de) |
DE (1) | DE2914884C2 (de) |
FR (1) | FR2455673B2 (de) |
GB (2) | GB2096223B (de) |
PL (1) | PL125322B1 (de) |
ZA (1) | ZA802130B (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3128279A1 (de) * | 1981-07-17 | 1983-02-03 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Nachsetzsteuerung fuer einen hydraulischen stempelausbau sowie hydraulisch ansteuerbares rueckschlagventil |
DE3212747A1 (de) * | 1982-04-06 | 1983-10-06 | Gewerk Eisenhuette Westfalia | Einrichtung zur hubsteuerung einer zylinddergruppe eines hydraulischen ausbausystems, insbesondere zum setzen der stempel einer schreitausbaueinheit |
DE3301674C1 (de) * | 1983-01-20 | 1984-01-05 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Steuerung fuer hydraulische Stempel von Schreitausbaugestellen |
GB2137314B (en) * | 1983-03-26 | 1986-07-23 | Dobson Park Ind | Valve for mine support |
PL146170B1 (en) * | 1984-12-10 | 1989-01-31 | Ct Kt Maszyn Gorniczych Komag | Apparatus for changing curability and mineablity of a mineral deposit |
DE3546278C1 (de) * | 1985-12-28 | 1987-07-02 | Bergwerksverband Gmbh | Nachsetzsteuerung fuer den Strebausbau |
DE3931625C1 (en) * | 1989-09-22 | 1990-08-09 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De | Underground mine roof support - maintains constant residual pressure during advance |
GB9009859D0 (en) * | 1990-05-02 | 1990-06-27 | Meco Mining Equip | A mine roof support |
GB2274325B (en) * | 1993-01-13 | 1996-04-03 | Meco Mining Equip | A yield valve |
CN103775115A (zh) * | 2014-01-21 | 2014-05-07 | 焦作欣扬程煤矿设备有限公司 | 侧摆移位立式压缸机 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1024167A (en) * | 1964-02-14 | 1966-03-30 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
GB1135942A (en) * | 1964-12-07 | 1968-12-11 | Groetschel Karl Maria | Improvements relating to roof supports for mine workings |
GB1180578A (en) * | 1967-03-06 | 1970-02-04 | Podmoskovny G Pk I Exi Gornogo | Advancing Mine Roof Supports |
DE1290109B (de) * | 1967-10-21 | 1969-03-06 | Gewerk Eisenhuette Westfalia | Stempel fuer den Ausbau bzw. zur Abspannung im Streb/Streckenuebergang |
DE1750834A1 (de) * | 1968-06-10 | 1971-04-29 | Gewerk Eisenhuette Westfalia | UEberdruckventilpatrone mit Kolben-O-Ring-Dichtung |
DE2146502C3 (de) * | 1971-09-17 | 1982-04-29 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Ventilanordnung zum Setzen hydraulischer Grubenstempel mit hoher Setzkraft |
DE2749312C2 (de) * | 1977-11-04 | 1984-12-20 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Steuereinrichtung mit Nachsetzautomatik für einen hydraulischen Stempelausbau |
DE2803283C2 (de) * | 1978-01-26 | 1992-12-10 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Überdruckventil für hydraulische Grubenstempel |
-
1979
- 1979-04-12 DE DE2914884A patent/DE2914884C2/de not_active Expired
-
1980
- 1980-04-01 CA CA000348972A patent/CA1138303A/en not_active Expired
- 1980-04-02 AU AU57100/80A patent/AU533562B2/en not_active Ceased
- 1980-04-08 GB GB8215240A patent/GB2096223B/en not_active Expired
- 1980-04-08 GB GB8011620A patent/GB2047316B/en not_active Expired
- 1980-04-09 PL PL1980223346A patent/PL125322B1/pl unknown
- 1980-04-09 FR FR8007948A patent/FR2455673B2/fr not_active Expired
- 1980-04-10 BE BE0/200176A patent/BE882725A/fr not_active IP Right Cessation
- 1980-04-10 ZA ZA00802130A patent/ZA802130B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB2096223A (en) | 1982-10-13 |
AU5710080A (en) | 1980-10-16 |
DE2914884C2 (de) | 1987-05-14 |
AU533562B2 (en) | 1983-12-01 |
PL125322B1 (en) | 1983-04-30 |
BE882725A (fr) | 1980-07-31 |
FR2455673A2 (fr) | 1980-11-28 |
GB2096223B (en) | 1983-05-11 |
GB2047316A (en) | 1980-11-26 |
DE2914884A1 (de) | 1980-10-30 |
FR2455673B2 (fr) | 1987-05-07 |
CA1138303A (en) | 1982-12-28 |
PL223346A1 (de) | 1981-01-30 |
GB2047316B (en) | 1983-04-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2074293B (en) | Control unit for an electro-hydraulic roof support control arrangement | |
AU510156B2 (en) | Mine roof support advancement control | |
AU543908B2 (en) | Hydraulic control of mine roof support | |
AU513162B2 (en) | Hydraulic control of mine roof supports | |
GB2096223B (en) | Improvements in hydraulic control apparatus for controlling the operation of mine roof support props | |
AU5799780A (en) | Mine roof support from cementitious material | |
GB2042037B (en) | Self advancing mine roof support | |
AU510144B2 (en) | Mine roof support advancement control | |
JPS5289779A (en) | Control system for at least two hydraulic working apparatus | |
GB2031496B (en) | Mine roof support unit | |
HU895363D0 (en) | Elelctrohydraulic control gear for hydraulic mine props | |
ZA762183B (en) | Hydraulic control system for elevating scraper | |
GB2037858B (en) | Hydraulic control devices for use with mining apparatus | |
GB2068050B (en) | Hydraulic control arrangement for a roof support unit of a mineral mine | |
GB2049057B (en) | Apparatus for controlling an hydraulic load | |
GB2090896B (en) | Control apparatus for hydraulic prop of mine roof support | |
JPS5633390A (en) | Controlling method for winch of mining machine | |
GB2051937B (en) | Mine roof support | |
AU558923B2 (en) | Hydraulic control on mine roof support | |
AU7026281A (en) | Controls for mine roof support | |
GB2062736B (en) | Movable mine roof supports | |
JPS534704A (en) | Multiivalve controller for hydraulic mobile heading roof support frame | |
GB2046823B (en) | Methods of and apparatus for supporting the roof of a mine working | |
GB2015067B (en) | Control systems for mine roof supports | |
GB2041056B (en) | Mine roof support |