SU371350A1 - - Google Patents

Description

METHOD OF MANAGEMENT OF MINES OF MINE STRAP

one

The invention relates to the field of automation of mine hydraulic roof supports.

Methods are known for controlling shaft supports with alternate section selection using a distributed switch and connecting actuators and position sensors of each section for the duration of its operation. In this case, the separation of the automatic and remote control modes (from the lava) occurs, which leads to an increase in the number of connecting cable cores in the lava in control systems that implement these stoppages, and, thus, to a decrease in the reliability of the systems.

The purpose of the invention consists in increasing the reliability of the support control systems by reducing the number of cable connecting cores.

The cells of the distributed switch are affected by remote control commands supplied by the operator from any lining section, and combine the remote and automatic control modes of the lining.

The invention is illustrated in a block diagram.

When the section / support is moved from its switched on selection cell 2, the command for automatically switching on the next section 3 is sent to the bus 4 through the coincidence circuit 5 and the disconnecting contact of the button 6 of the remote activation. The coincidence circuit 5 permits the issuance of a command upon receipt of an authorization signal from program block 7.

The bus 4 also gives the command for remotely activating the section from the closing

contact button 6. In this case, the circuit to turn on the section / open contact button 6. Thus, the commands, both automatic and remote control, are transmitted on the same bus 4, i.e., remote and automatic control modes are combined.

When moving in the opposite direction, i.e., from section 3 to section /, bus 4 is given a command of remote control

to section 3 using the button 8 and the automatic control command using the coincidence circuit 9 when the program block 10 is triggered and the selection cell is activated //.

This structural scheme can be converted for centralized control and simultaneous control from the lava with transfer of information about the state of the support sections (sensors 12, 13, bus 14) to the display point 15, with control commands

bus 16 to the actuators 17, 18 and with the promotion (tires 19, 20) of the distributed switch (cells 2, 11). This eliminates the need for blocks of the program 7, 10 on each section of the lining.

Thus, the sushi of the dany way of the support of the support is that the remote activation commands are sent to the corresponding cells of the distributed switch along the circuits that are simultaneously used to give automatic control commands, which allows combining the remote and automatic control modes.

Subject invention

The method of controlling the shaft support sections, consisting in alternately selecting the support section using a distributed switch and connecting actuators and position sensors of each section during its operation, characterized in that, in order to increase reliability by reducing the number of connecting cores of the cable, The remote switch commands sent by the operator from any support section are combined on the cells of the distributed switch and combine the remote and automatic control modes.