DE2261035A1 - SHIELD REMOVAL WITH CONTINUOUS REMOVAL OF THE CAP FROM THE COAL PUMP IN THE EVENT OF CHANGING FLOE POWER - Google Patents

SHIELD REMOVAL WITH CONTINUOUS REMOVAL OF THE CAP FROM THE COAL PUMP IN THE EVENT OF CHANGING FLOE POWER

Info

Publication number
DE2261035A1
DE2261035A1 DE19722261035 DE2261035A DE2261035A1 DE 2261035 A1 DE2261035 A1 DE 2261035A1 DE 19722261035 DE19722261035 DE 19722261035 DE 2261035 A DE2261035 A DE 2261035A DE 2261035 A1 DE2261035 A1 DE 2261035A1
Authority
DE
Germany
Prior art keywords
cap
removal
event
floe
changing
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.)
Pending
Application number
DE19722261035
Other languages
German (de)
Inventor
Hans Friedrich Waskoenig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dommann Guenther Dr-Ing 4600 Dortmund
Original Assignee
Dommann Guenther Dr-Ing 4600 Dortmund
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 Dommann Guenther Dr-Ing 4600 Dortmund filed Critical Dommann Guenther Dr-Ing 4600 Dortmund
Priority to DE19722261035 priority Critical patent/DE2261035A1/en
Publication of DE2261035A1 publication Critical patent/DE2261035A1/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0427—Shield operating devices; Hinges therefor

Description

S c h i l d a u s b a u mit gleichbleibender Entfernung der Kappe vom Kohlenstoß beim Schildausbau wird die Kappe von einem Hebel mit einen festen Drehpunkt getragen. Diese Anordnung hat den Nachteil, daß sich das vordere Ende der Kappe mit zunehmender Höhenlage vom Kohlenstoß entfernt und ein Streifen des Hangenden ohne Unterstützung bleibt. Abbildung Stellung a und Stellung c.S child expansion with constant removal of the cap from the coal face When removing the shield, the cap is carried by a lever with a fixed pivot point. This arrangement has the disadvantage that the front end of the cap moves away from the coal face with increasing altitude and a strip of the hanging wall remains without support. Figure position a and position c.

Es ist versucht worden, diesen Nachteil durch Umstecken der Kappe oder durch Verlängern des Hebels auszugleichen. Beide Verfahren erfordern eine mehr oder weniger aufwendige manuelle Bedienung. Sie weisen beide den Nachteil auf, daß bei falscher Bedienung - niedrige Stellung und vorgeschobene Kappe - die ganze Ausbaueinheit kopflastig wird und durch den Gebirgsdruck nach dem Alten Mann wegschiebt. Die geschilderten Nachteile werden durch den vorgelegten Vorschlag vermieden. Die Kappe wird zwischen der niedrigsten Stellung a und der höchsten Stellung b selbsttätig über ein Hebelsystem so geführt, daß die Entfernung zwischen Kappenspitze und Kohlenstoß annähernd gleich bleibt.Attempts have been made to remedy this disadvantage by repositioning the cap or compensate by lengthening the lever. Both procedures require one more or less laborious manual operation. They both have the disadvantage that in the event of incorrect operation - low position and extended cap - the entire expansion unit becomes top-heavy and pushes away after the old man due to the pressure of the mountains. The described The proposed proposal avoids disadvantages. The cap is between the lowest position a and the highest position b automatically via a lever system guided in such a way that the distance between the cap tip and the coal face is approximately the same remain.

Die vorgeschlagene Ausbaueinheit besteht aus einem Grundrahmen i, an dem die Hebel 3 und 4 und der hydraulische Zylinder 7 angelenkt sind. Die Kappe 8 wird von dem Hebel 2 über die Hebel 3 und 4 durch den Zylinder 7 bewegt. Durch das Längenverhältnis und die Anordnung der Anlenkpunkte der Hebel 3 und 4 wird bei Anheben des Hebels 2 gleichzeitig eine Vorwärtsbewegung erreicht, mit der die Kappe am Kohlenstoß geführt wird.The proposed expansion unit consists of a base frame i, on which the levers 3 and 4 and the hydraulic cylinder 7 are articulated. The cap 8 is moved by the lever 2 via the levers 3 and 4 through the cylinder 7. By the length ratio and the arrangement of the pivot points of levers 3 and 4 is at Raising the lever 2 simultaneously achieves a forward movement with which the cap is led at the coal face.

Claims (1)

Schutzanspruch:Protection claim: Ausbaueinheit mit Übertragung der Stützkraft über Hebel dadurch gekenzeichnet, daß der traghebel ftir die Kappe bei der Aufwärtsbewegung durch eine Hebelführung gleichzeitig eine Vorwärtsbewegung ausführt, so daß die Entfernung der Kappenspitze vom Kohlenstoß unabhängig von der Höhenlage annähernd gleich bleibt.Expansion unit with transmission of the supporting force via lever marked that the carrying lever for the cap is guided by a lever guide during the upward movement simultaneously performs a forward movement, so that the removal of the cap tip from the coal face remains almost the same regardless of the altitude.
DE19722261035 1972-12-14 1972-12-14 SHIELD REMOVAL WITH CONTINUOUS REMOVAL OF THE CAP FROM THE COAL PUMP IN THE EVENT OF CHANGING FLOE POWER Pending DE2261035A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722261035 DE2261035A1 (en) 1972-12-14 1972-12-14 SHIELD REMOVAL WITH CONTINUOUS REMOVAL OF THE CAP FROM THE COAL PUMP IN THE EVENT OF CHANGING FLOE POWER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722261035 DE2261035A1 (en) 1972-12-14 1972-12-14 SHIELD REMOVAL WITH CONTINUOUS REMOVAL OF THE CAP FROM THE COAL PUMP IN THE EVENT OF CHANGING FLOE POWER

Publications (1)

Publication Number Publication Date
DE2261035A1 true DE2261035A1 (en) 1974-07-04

Family

ID=5864320

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722261035 Pending DE2261035A1 (en) 1972-12-14 1972-12-14 SHIELD REMOVAL WITH CONTINUOUS REMOVAL OF THE CAP FROM THE COAL PUMP IN THE EVENT OF CHANGING FLOE POWER

Country Status (1)

Country Link
DE (1) DE2261035A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085592A (en) * 1975-02-13 1978-04-25 Rheinstahl Ag Shield tubbing for longwalls
US5694861A (en) * 1994-05-18 1997-12-09 Laukamm-Josten; Ulrich Desk with supported computer monitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085592A (en) * 1975-02-13 1978-04-25 Rheinstahl Ag Shield tubbing for longwalls
US5694861A (en) * 1994-05-18 1997-12-09 Laukamm-Josten; Ulrich Desk with supported computer monitor

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Legal Events

Date Code Title Description
OI Miscellaneous see part 1