CS224883B1 - Connexion for signal simulation - Google Patents

Description

The invention solves a circuit for simulating signals, especially in mining, in a mining machine.

So far, for the purpose of revising and maintaining the means for automatically checking the signal at the hoisting machine, any necessary signal is given from the original signaling point, for example from the exit deck or from the hauling deck, or from a transport container. Because there is no known wiring to simulate it from a replacement signaling point, eg directly from the engine room of the mining machine, from the local switchboard of the signaling system. This prior art has some disadvantage. On the one hand, the course of the inspection and maintenance is lengthy, especially for the necessary agreement of the maintenance worker with the relevant signaling procedure. Furthermore, the work in question is associated with certain β hazards, in particular because the signalman must not forget that the operator is sometimes required to respond incorrectly to the signal received from him in order to verify the proper functioning of the revised automation means.

These drawbacks are overcome by the circuitry according to the invention, which is based on the fact that at least one signaling circuit at the original signaling point is connected to at least one control element located at the original signaling point or at least one simulation element located at the replacement signaling point.

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This solution enables, for example, for the purpose of revising and maintaining means 1c of the automatic signaling control, the required signal can be simulated from the replacement signaling point and that the corresponding simulation element can be reliably secured at this point against possible misuse by an unauthorized person.

The drawing shows a block diagram of an exemplary circuit according to the invention. With different hoisting machines there are often different signaling systems, especially in terms of number and types of signals, and for this example, the missing system of the double-acting mining machine is described and further described. _of

Jl circuits for signal _f i2, LJ, X £ 1 signaling systems are parallel to their controls £ 1, 22, 23, 24 each of which is not the main-signaling naohásl site 2 coupled simulation elements 31 j £, 22.24 , each of which is located at an alternative signaling point 2 », for example, in the main switchboard of the signaling system 1 directly in the machine room of the mining machine.

The non-signal circuit 11 is a shock signal which, as initially, can be given by means of a control element 21, e.g.

The signal circuit 12 is a so-called beacon signal which, as initially, can be given by means of the control element 22, e.g.

The non-signal circuit ij includes an emergency stop signal which, as initially, can be given by means of the control element jj, e.g. as above, a fast signal, and which can now also be simulated by means of a simulation element jj from the main switchboard.

And, the non-signal circuit includes signals from the transport vessel, as originally provided by the control element 21, eg from the first of the two transport vessels of the hoisting machine, and can now also be simulated by the simulation element 6 from the above main distributor.

In this main switchboard there are other simulation elements at the replacement signaling point j which are not shown. It serves to simulate another label of the above mentioned species. E.g. to simulate the impact signal as if from the palate, and the like, as well. All simulation elements together represent a set of buttons located in said main switchboard, where they are secured against possible misuse by an unauthorized person, eg locked.

Each simulated signal is both an input for the means for automatically checking the signal at the hoisting machine and an incentive for the machine operator, who, however, sometimes responds consciously incorrectly, as determined by the appropriate review and maintenance personnel of said means. In the case of such a deliberately incorrect reaction, however, unlike in the past, there is no danger, since the towing machine can now be operated without the presence of signalers and other personnel.

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It is suitable to use the described circuit according to the invention in all mining machines and similar conveying devices in which means are provided for automatic control of the signal.

Claims (1)

Wiring for signaling simulations, especially in mining operations, in a mining machine, eg directly in the engine room, where the main switchboard of the signaling system is equipped with individual signaling circuits whose controls are located at their original signaling positions, the circuit (11) of the signaling system (1) is connected in parallel with its at least one control element (21), which is located at the original signaling point (2), at least one simulation element (31), which is located at the replacement signaling point (3) ).