DE2917054A1 - Monitoring circuit for mining machinery cut=out contacts - has series resistor and LED connected across each contact - Google Patents

Monitoring circuit for mining machinery cut=out contacts - has series resistor and LED connected across each contact

Info

Publication number
DE2917054A1
DE2917054A1 DE19792917054 DE2917054A DE2917054A1 DE 2917054 A1 DE2917054 A1 DE 2917054A1 DE 19792917054 DE19792917054 DE 19792917054 DE 2917054 A DE2917054 A DE 2917054A DE 2917054 A1 DE2917054 A1 DE 2917054A1
Authority
DE
Germany
Prior art keywords
series
contacts
contact
monitoring circuit
series resistor
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Withdrawn
Application number
DE19792917054
Other languages
German (de)
Inventor
Klaus-Peter Ing Gr Bredenhagen
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.)
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Original Assignee
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
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 Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH filed Critical Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Priority to DE19792917054 priority Critical patent/DE2917054A1/en
Publication of DE2917054A1 publication Critical patent/DE2917054A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18Special adaptations of signalling or alarm devices
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/04Safety 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)
  • Mechanical Engineering (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The cut-out contacts monitoring circuit, has each of the contacts (2a, 6a) which are connected in series, shunted by a LED (11) in series with a resistor (9). The LED's (11) and associated resistors (9) are similarly all connected in series. Pref. each cut-out contact is (2a..6a) is associated with a relay (2..6) used to disconnect an open seam, electrically driven minim machine in the event of the respective parameter, eg. temp. or pressure of the hydraulic fluid, indicating a fault. Pref. a protective diode (10) is connected between each LED (11) and its series resistor (9).

Description

Die Erfindung betrifft eine Überwachungseinrichtung für in Reihe liegende, bei Störungen des zu überwachenden Gerätes öffnende Auslösekontakte, insbesondere für untertage eingesetzte, elektrisch angetriebene Gewinnungsmaschinen.The invention relates to a monitoring device for in-line, In the event of malfunctions in the device to be monitored, opening contacts, in particular for electrically driven mining machines used underground.

Es sind Walzenschrämmaschinen für den untertägigen Flözabbau bekannt. Sie sind mit Anzeigevorrichtungen ausgcstattet, mit deren Hilfe eine Anzahl von Meßstellen innerhalb der Maschine kontrolliert und auch der Schaltzustand der einzelnen Maschinenaggregate, wie Antriebsmotor, Maschinenwinde und/oder der Schwenkmechanismus für die Abbauwerkzeuge u. dgl., überwacht wird (deutsches Gebrauchsmuster 72 35 130).There are known roller cutting machines for underground seam mining. They are equipped with display devices, with the help of which a number of Measuring points within the machine are checked and also the switching status of the individual Machine units, such as the drive motor, machine winch and / or the swivel mechanism for the removal tools and the like, is monitored (German utility model 72 35 130).

Weiterhin gehört es zum Stand der Technik, Walzenschrämmaschinen mit Überwachungseinrichtungen auszurüsten, die die Temperatur des Flüssigkeitskreislaufes der hydraulischen Winde, die Temperatur bestimmter Lagerstellen, die des Kühlwasserkreislaufs und auch dessen Druck überwachen.Furthermore, it is part of the state of the art to include roller cutting machines Equip monitoring devices that monitor the temperature of the liquid circuit the hydraulic winch, the temperature of certain bearing points, that of the cooling water circuit and also monitor its pressure.

Solche Überwachungseinrichtungen sind mit je einem Auslösekontakt versehen, die in Reihe hintereinanderliegend innerhalb eines Uberwachungsleiters angeordnet sind und einzeln von der ihnen zugeordneten Überwachungseinrichtung betätigt werden, wenn unzulässige Temperatursteigerungen auftreten bzw. der Kreislaufdruck nicht den geforderten Wert hat. Jeder betätigte Auslösekontakt setzt durch Unterbrechen des Überwachungsleiters die Maschine still.Such monitoring devices are each with a trigger contact provided, which are in series one behind the other within a Uberwachungsleiter are arranged and operated individually by the monitoring device assigned to them if impermissible temperature increases occur or the circuit pressure does not have the required value. Every actuated trip contact sets by breaking of the supervisor shut down the machine.

Er liefert dem Bedienungsmann der Schrämmaschine aber keine Information, welche der überwachten Einrichtungen den Mas¢hinenstillætand verursacht hat.However, it does not provide the operator of the cutting machine with any information which of the monitored facilities caused the mas ¢ hinenstillætand.

Die Erfindung hat sich die Aufgabe gestellt, eine Überwachungseinrichtung der eingangs erläuterten Art zu schaffen die sich dadurch auszeichnet, daß sie beim Ansprechen einen Hinweis auf die Störungsquelle liefert.The object of the invention is to provide a monitoring device to create the type explained above, which is characterized by the fact that they at Responding provides an indication of the source of the disturbance.

Zur Lösung dieser Aufgabe geht die Erfindung von der eingangs erläuterten Überwachungseinrichtung aus und schlägt vor a) jeden der Auslösekontakte durch je eine parallel geschaltete Leuchtdiode zu überbrücken; b) jede Leuchtdiode mit einem Vorwiderstand zu versehen; c) alle Leuchtdioden und ihre Vorwiderstände in Reihe anzuordnen.To solve this problem, the invention is based on that explained at the beginning Monitoring device and suggests a) each of the trip contacts through each to bypass a parallel connected light emitting diode; b) each light emitting diode with one To provide series resistor; c) all light emitting diodes and their series resistors in series to arrange.

Bei einer derart aufgebauten Überwachungseinrichtung spricht stets die Leuchtdiode an, die zu dem bereits geöffneten Auslösekontakt parallel liegt und gibt ein optisches Signal. Da die Vorwiderstände so gewählt sind, daß nur ein Strom von ca. 10 mA fließt, ist diese Schaltung eigensicher. Außerdem können mit dieser Schaltungsanordnung auch mehrere gleichzeitig auftretende Störungen angezeigt und bestimmt werden, da die entsprechend bezeichneten Dioden der ansprechenden Auslösekontakte auch gleichzeitig aufleuchten.With a monitoring device constructed in this way, always speaks the light-emitting diode that is parallel to the trigger contact that is already open and gives an optical signal. Since the series resistors are chosen so that only one Current of approx. 10 mA flows, this circuit is intrinsically safe. You can also use this circuit arrangement also indicates several simultaneously occurring malfunctions and be determined as the correspondingly labeled diodes of the triggering contacts also light up at the same time.

Im folgenden Beschreibungsteil wird die Erfindung anhand eines Schaltschemas näher erläutert.In the following part of the description, the invention is illustrated by means of a circuit diagram explained in more detail.

Der Schaltplan ist mit 1 bezeichnet. Er ist so aufgebaut, daß die einzelnen, zum Beispiel bei Störungen von Temperatur oder Druck, ansprechenden Relais 2,3,4,5,6 mit ihren Auslosekontakten 2a,3a,4a,5a,6a in einem Überwachungs leiter 7 in Reihe liegen. Parallel zu Jedem Uberwachungsrelais 2,3,4,5,6 und den damit verbundenen Auslösekontakten 2a,3a,4a,5a,6a liegt die die Auslösekontakte 2a-- 6 überbrückende Überwachungseinrichtung 8, die jeweils von einem Vorwiderstand 9, einer Schutzdiode 10 und einer Leuchtdiode 11 gebildet wird. Die jedem Überwachungsrelais r - ) zugeordneten Überwachungseinrichtungen 8 liegen ebenfalls in Reihe, und die Leuchtdioden 11 sprechen stets nur dann an, wenn der jeweils zugeordnete Auslösekontakt d - 6a von dem Überwachungsrelais 2 - 6 geöffnet wird.The circuit diagram is labeled 1. It is structured in such a way that the individual relays that respond, for example in the event of temperature or pressure malfunctions 2,3,4,5,6 with their trigger contacts 2a, 3a, 4a, 5a, 6a in a monitoring head 7 are in a row. Parallel to each monitoring relay 2,3,4,5,6 and with it connected trip contacts 2a, 3a, 4a, 5a, 6a is the trip contacts 2a - 6 bridging monitoring device 8, each of which is provided by a series resistor 9, a protective diode 10 and a light emitting diode 11 is formed. The each monitoring relay r -) associated monitoring devices 8 are also in series, and the Light-emitting diodes 11 always respond only when the trigger contact assigned in each case d - 6a is opened by the monitoring relay 2 - 6.

T)urch diese Schaltungsanordnung können mehrere Leuchtdioden 1 1 von verschiedenen berwachungseinrichtungen 8 gleichheftig ansprechen und ein optisches Signal geben.This circuit arrangement allows several light-emitting diodes 1 1 from different monitoring devices 8 address equally and one optical Give signal.

Claims (1)

Überwachungseinrichtung für in Reihe liegende bei Störungen des zu überwachenden Gerätes öffnende Auslösekontakte insbesondere für untertage eingesetzte Gewinnungsinaschinen Patentanspruch 1. Überwachungseinrichtung für in Reihe liegende, bei Störungen des zu überwachenden Gerätes öffnende Auslösekontakte, insbesondere für untertage eingesetzte, elektrisch angetriebene Gewinnungsmaschinen gekennzeichnet durch folgende Merkmale: a) jeder Auslösekontakt (2a - 6a) ist von je einer parallel geschalteten Leuchtdiode (11) überbrückt; b) jede Leuchtdiode (11) ist mit einem Vorwiderstand (9) versehen; c) alle Leuchtdioden (11) und ihre Vorwiderstände (9) liegen in ReiheMonitoring device for those in series in the event of malfunctions of the to monitoring device opening release contacts, especially for those used underground Mining machines Claim 1. Monitoring device for in-line, In the event of malfunctions in the device to be monitored, opening contacts, in particular marked for electrically driven mining machines used underground by the following features: a) each tripping contact (2a - 6a) is parallel to one another switched light emitting diode (11) bridged; b) each light emitting diode (11) is with one Series resistor (9) provided; c) all light emitting diodes (11) and their series resistors (9) lie in series
DE19792917054 1979-04-27 1979-04-27 Monitoring circuit for mining machinery cut=out contacts - has series resistor and LED connected across each contact Withdrawn DE2917054A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792917054 DE2917054A1 (en) 1979-04-27 1979-04-27 Monitoring circuit for mining machinery cut=out contacts - has series resistor and LED connected across each contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792917054 DE2917054A1 (en) 1979-04-27 1979-04-27 Monitoring circuit for mining machinery cut=out contacts - has series resistor and LED connected across each contact

Publications (1)

Publication Number Publication Date
DE2917054A1 true DE2917054A1 (en) 1980-11-06

Family

ID=6069385

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792917054 Withdrawn DE2917054A1 (en) 1979-04-27 1979-04-27 Monitoring circuit for mining machinery cut=out contacts - has series resistor and LED connected across each contact

Country Status (1)

Country Link
DE (1) DE2917054A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343372A1 (en) * 1982-12-31 1984-07-12 Voest-Alpine Ag, Wien DEVICE FOR PROTECTING SECTIONAL CUTTING MACHINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343372A1 (en) * 1982-12-31 1984-07-12 Voest-Alpine Ag, Wien DEVICE FOR PROTECTING SECTIONAL CUTTING MACHINES
AT377056B (en) * 1982-12-31 1985-02-11 Voest Alpine Ag DEVICE FOR PROTECTING PARTIAL CUTTING MACHINES

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