EP0114639A3 - Control for a hydraulic prop of advancing mine roof supports - Google Patents
Control for a hydraulic prop of advancing mine roof supports Download PDFInfo
- Publication number
- EP0114639A3 EP0114639A3 EP84100425A EP84100425A EP0114639A3 EP 0114639 A3 EP0114639 A3 EP 0114639A3 EP 84100425 A EP84100425 A EP 84100425A EP 84100425 A EP84100425 A EP 84100425A EP 0114639 A3 EP0114639 A3 EP 0114639A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- stamp
- line
- control
- pressure
- mine roof
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 abstract 2
- 230000001960 triggered effect Effects 0.000 abstract 1
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
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)
- Press Drives And Press Lines (AREA)
- Safety Valves (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Die Steuerung des Stempels (1) erfolgt mit einem Nachsetzgerät (10), das im Nebenschluß zu den Setz- und Raubventilen (4, 8) in die zum Druckraum (2) des Stempels (1) führende Nachsetzleitung (11) eingeschaltet ist. Der Nachsetzvorgang wird durch die Betätigung eines Schalt stößels (14) am Nachsetzgerät (10) ausgelöst, der ein 3/2-Wegeventil (13) mit der Hochdruckleitung P verbindet. Die einströmende Druckflüssigkeit beaufschlagt den Schalt kolben (16) von einem weiteren 3/2-Wegeventil (15), das Druckflüssigkeit zum Druckraum (2) des Stempels (1) und auf einen Schaltkolben (17) leitet. Dieser wirkt auf einen Riegel (18), der gegen die Kraft einer Sperrfeder (20) in eine Ausnehmung (19) des Schaltstößels (14) einrastet, wenn der Druck in der Nachsetzleitung (11) einen vorgegebenen Mindestsetzdruck übersteigt. Der Riegel (18) wird aus der Einraststellung durch Beaufschlagung eines Schaltkolbens (23) mit dem Raubventil (8) herausgenommen. The stamp (1) is controlled with a Follow-up device (10) which shunts the setting and Robber valves (4, 8) into the pressure chamber (2) of the stamp (1) leading follow-up line (11) is switched on. The Repositioning is done by pressing a switch plunger (14) on the repeater (10) triggered the one 3/2-way valve (13) connects to the high pressure line P. The inflowing hydraulic fluid acts on the switch piston (16) from another 3/2-way valve (15), the Hydraulic fluid to the pressure chamber (2) of the stamp (1) and on conducts a switching piston (17). This acts on a bolt (18) against the force of a locking spring (20) in a Recess (19) of the switching plunger (14) engages when the Pressure in the replenishment line (11) a predetermined Minimum set pressure exceeds. The bolt (18) is from the Locking position by acting on a switching piston (23) with the pirate valve (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833301674 DE3301674C1 (en) | 1983-01-20 | 1983-01-20 | Control system for hydraulic stamps on walking frames |
DE3301674 | 1983-01-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0114639A2 EP0114639A2 (en) | 1984-08-01 |
EP0114639A3 true EP0114639A3 (en) | 1986-12-03 |
Family
ID=6188659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84100425A Withdrawn EP0114639A3 (en) | 1983-01-20 | 1984-01-17 | Control for a hydraulic prop of advancing mine roof supports |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0114639A3 (en) |
DE (1) | DE3301674C1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3506185A1 (en) * | 1985-02-22 | 1986-08-28 | Thyssen Industrie AG Schmiedetechnik/Bergbautechnik, 4100 Duisburg | Control valve for a self-advancing support system |
DE3816433C1 (en) * | 1988-05-13 | 1989-06-01 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De | Resetting control for hydraulic self-advancing support |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2408031A1 (en) * | 1977-11-04 | 1979-06-01 | Gewerk Eisenhuette Westfalia | CONTROL DEVICE FOR HYDRAULIC SUPPORT IN THE FORM OF STREAKS OR SIMILAR ASSEMBLY |
GB2047316A (en) * | 1979-04-12 | 1980-11-26 | Gewerk Eisenhuette Westfalia | Improvements in hydraulic control apparatus for controlling the operation of mine roof support props |
DE2942463A1 (en) * | 1979-10-20 | 1981-04-30 | Klöckner-Werke AG, 4100 Duisburg | Hydraulic walking mine support frame setting mechanism - has manometer connecting following setting lead between prop and pressure load |
DE3012299A1 (en) * | 1980-03-29 | 1981-10-08 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulic pit prop regulating system - has after-setting unit ahead of relief valve activating operating piston |
DE3015411A1 (en) * | 1980-04-22 | 1981-11-05 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulic mine striding support prop. regulation - has fluid flowing to return valve controlling supply to pressure chamber |
DE3123278C1 (en) * | 1981-06-12 | 1982-12-16 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Control for a hydraulic prop of a self-advancing support assembly |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3128279A1 (en) * | 1981-07-17 | 1983-02-03 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | ADJUSTMENT CONTROL FOR A HYDRAULIC STAMP EXTENSION AND HYDRAULICALLY CONTROLLED CHECK VALVE |
-
1983
- 1983-01-20 DE DE19833301674 patent/DE3301674C1/en not_active Expired
-
1984
- 1984-01-17 EP EP84100425A patent/EP0114639A3/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2408031A1 (en) * | 1977-11-04 | 1979-06-01 | Gewerk Eisenhuette Westfalia | CONTROL DEVICE FOR HYDRAULIC SUPPORT IN THE FORM OF STREAKS OR SIMILAR ASSEMBLY |
GB2047316A (en) * | 1979-04-12 | 1980-11-26 | Gewerk Eisenhuette Westfalia | Improvements in hydraulic control apparatus for controlling the operation of mine roof support props |
DE2942463A1 (en) * | 1979-10-20 | 1981-04-30 | Klöckner-Werke AG, 4100 Duisburg | Hydraulic walking mine support frame setting mechanism - has manometer connecting following setting lead between prop and pressure load |
DE3012299A1 (en) * | 1980-03-29 | 1981-10-08 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulic pit prop regulating system - has after-setting unit ahead of relief valve activating operating piston |
DE3015411A1 (en) * | 1980-04-22 | 1981-11-05 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulic mine striding support prop. regulation - has fluid flowing to return valve controlling supply to pressure chamber |
DE3123278C1 (en) * | 1981-06-12 | 1982-12-16 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Control for a hydraulic prop of a self-advancing support assembly |
Also Published As
Publication number | Publication date |
---|---|
DE3301674C1 (en) | 1984-01-05 |
EP0114639A2 (en) | 1984-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT FR GB |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19870203 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KRIEGER, KARL Inventor name: HARTLEB, JOCHEM |