SU1331783A1 - Apparatus for controlling mine hoist installation - Google Patents

Abstract

The invention relates to the control of the mine hoist and can be used to control the movement of the lifting vessel both on the skip, stand, and on the ascent, and improves the accuracy and reliability of the device. The control unit of the mine hoist unit contains a displacement sensor 1, a reversible counter 2, two blocks 3 and 4 of the driving mode and two groups of 8 and 9 memory elements, as well as a comparator 5, the block 6 of the lifting height setting, an inverter 11, two I and- NOT 12 and 13, additional element 7. memory and element EXCLUSIVE OR 10. When the lifting machine moves down or up, the first output of sensor 1 receives impulses to the counting input of the reversible counter 2, from the bit outputs of which signals proportional to the driving path are received They are put into comparator 5, where they are compared with the value specified in block 6, and depending on the direction of movement of the elevator machine and the coincidence of the slots in the comparator, a control signal is generated to the control input of the reversible counter. 2 Il. in (L oo with 00 00

Description

The invention relates to the field of control of a mine hoist and can be used to control the movement of a lifting vessel on both a skip, stand and a sinking lift.

The purpose of the invention is to improve the accuracy and reliability of the device.

Figure 1 shows the control unit of a mine hoist; FIG. 2 is a velocity diagram for the directions Up, Down.

The device consists of a displacement sensor 1, which selects discrete information, for example, from a shaft of a lifting machine. The first output of sensor 1 is connected to the counting input of the reversible counter 2, the bit outputs of which are connected to the informational inputs M of the first and second blocks 3 and 4 of the driving mode and comparator 5. The second inputs of the comparator 5 are connected to Byyhod 1 and block 6 set the lift height, and the control inputs of blocks 3 and 4 of the set are with the outputs of the memory element 7.

The outputs of blocks 3 and 4 of the set of motion patterns are connected to the synchronization inputs of the memory elements (flip-flops) of the first and second groups of 8 and 9 memory elements, the information inputs of which are connected to the second output of sensor 1, the first input of the HCK.T104AKUIEE OR 10, and through an inverter 11 and directly connected to the first inputs of the first and second elements AND NOT 12 and 13.

The second inputs of the elements AND-NO 12 and 13 are interconnected and connected to the output of the comparator 5, and the outputs of the elements AND-NO 12 and 13 are connected to the inputs of the memory element 7. The second pitch of the memory element 7 is connected to the second input of the EXCLUSIVE AND: P: 10 element, the output of which is connected to the control input of the reversible counter 2.

The following command line is shown on the speed chart: W: .14 - on stop when moving up; 15 - for acceleration when moving down and for dot givanie when moving up; 16 - a uniform course of a mapsha at a two down and on a slowdown when moving up;

17- to 3-ydleniya with two-way Down and a uniform course when moving Up for elevation II,

18- on deceleration when dv; gzheiii

0

s

0

Down and uniform stroke when moving up .dl height of the rise of H + ah; 19 - on the dot-down when moving Down and for acceleration when moving Up for the height of lifting H; 20 - on the dot-down when moving Down and for acceleration when moving Up for the height of the rise H +; dh; 21 and 22 - to lock when moving Down.

The sensor 1 of the track and 1 pulses at its first output produces discrete signals proportional to the path traveled by the hoist, for example, with a resolution of 0.01 m.

At the second output, the sensor 1 of the traveling pulses generates a signal of a logical G when the elevator is moving Down and a signal of a logical O while the elevator is moving Up.

Blocks 3 and 4 of the task are designed to program the path commands (including groups of 8 and 9 memory elements). As a programming unit, any type of permanent memory (ROM) can be used.

With a small number of track commands, the inputs of the memory elements 7 of groups 8 and 9 sigcal (m from the outputs (bits) of the ROM are received directly. With a large number of track commands, the signals from the ROM outputs to the inputs of the memory elements arrive through decoders, which in this case can be part of blocks 3 and 4 tasks.

Comparator 5 is designed to match the code signals coming from; the bit outputs of the reversible counter 2 with the code signals of the unit 6 for setting the lift height. The block 6 of the height of the lifting height is designed to set the binary code of the height of the lifting installation.

The device works as follows.

In block 6, half the distance of the barrel is set from the zero platform to the bottom. When the lifting machine moves from the zero point Down, the first output of the sensor 1 to the counting input of the reversing counter 2 receives impulses proportional to the path traveled by the lifting machine.

From the second output of the sensor 1 to the information inputs of the memory modules of groups 8 and 9 to the inputs of the I1 inverter 11, AND-NO elements 12 and 13

and an element of EXCLUSIVE SZEE SHSh 10 receives a log no (signal 1, corresponding to the movement of the lifting machine Down. At this time, the second input of the EXCLUSIVE OR element 10 contains a signal O, as a result of which a control signal 1 is present at the control input of the reversing counter 2. Reverse counter 2 under the action of counting pulses arriving at it from sensor 1, it works on addition.

Signals proportional to the path traveled by the mine hoist, from the output of the reversible counter 2, are fed to the inputs of the comparator 5, where they are compared with the specified middle of the path, and to the inputs of blocks 3 and 4 of the task. The first block 3 of the task at this time receives a permit from the first output of the memory element 7, and the second block 4 from the second output of the memory element 7 a inhibitory signal. Consequently, from the bit outputs of the first block 3 of the task, under the action of the reversible counter 2, the synchronization inputs of the first group of 8 memory elements receive signals programmed in block 3 to the set point of the second D memory blocks.

heights of rise. These signals include the corresponding memory elements. Which give travel commands to drive the lifting machine to half the depth of the trunk.

When the hopper reaches the half of the barrel depth H / 2 (FIG. 2), at the exit of the comparator 5, a signal appears that triggers the first AND-HEN 12 element and, therefore, changes the state of the memory element 7 to the opposite. Element 7 of the memory issues a ban to the first 3 and permission to work to the second 4 blocks of the program's task. At the same time, the output of the EXCLUSIVE OR 10 element will change its signal from G to O, as a result of which the reversible counter 2 will start working on the subtraction while moving the lifting machine further Down,

Now, from the bit outputs of the second task unit 4, under the action of the reversible counter 2, the signals programmed in the second unit 4 at the specified elevation heights arrive at the clock inputs of the other group 9 of the memory elements 7. These signals include the corresponding elements of the memory, which give out

commands to drive the hoist after half the depth of the trunk.

When the lifting machine moves in the opposite direction, a signal O appears at the second output of sensor 1, under the action of which an output signal G is set at the output of the EXCLUSIVE OR 10 element and the reversible counter 2 begins to work on addition, With the bit outputs of the second block A setting at this time Signals are received at the sync inputs of the second group of 9 memory elements, which turn off the 5 last ones under the action of the signal O from the second output of sensor 1. Turning off the memory elements leads to the removal of track commands from the lifting machine drive us in the second half of the barrel depth.

When the hopper reaches the half of the barrel depth H / 2 (FIG. 2), a signal appears at the output of the comparator 5, which triggers the second IS-NO 13 connected to the inverter 11, as a result of which the memory element 7 changes its state the opposite, giving permission to work first 3 and ban

0

five

The up / down counter 2 starts to work on the subtraction and from the bit outputs of the first block 3 tasks signals are sent to the synchronization inputs of the memory elements of the first group 8, which turn off the last ones

0

the action of the signal O from sensor 1, turning off the remaining elements of the memory 7 leads to the removal of the travel commands from the drive of the hoist in the first half of the barrel depth.

The proposed device can work with several horizons. In this case, in block 6 of the task, g is set to half the height to the required destination horizon. Further, the operation of the device is similar to that described above. The ability to operate a device with multiple horizons drastically reduces the number of travel teams, since the same track commands can be used when operating a hoist with a different number of horizons in the proposed technical solution.

The proposed device can be used to control the tunneling machine. When moving the shelf down using the regimental

0

five

winches and scraper pulleys, for example, on yb using block 6 tasks on

dig deep

And + jh

(figure 2), etc.

In the future, the operation of the device is similar to that described above.

Claims (1)

Invention Formula A mine lift control device comprising a displacement sensor and movement directions, the first output of which is connected to the counting input of a reversible counter, the discharge outputs of which are connected to the first inputs of the first and second motion setting units, the outputs of which are connected to the memory element synchronization inputs, respectively the first and second groups, the outputs of which are the outputs of the device, characterized in that, in order to increase accuracy and reliability, a comparator is entered into it, a task block Lift heights, inverter, two NAND elements, additional memory element and element 83 EXCLUSIVE OR, the second output of the motion sensor is connected to the information inputs of the memory elements of the first and second groups, the input of the inverter, the first inputs of the first NAND element and the EXCLUSIVE OR element, the second input of which is connected to the first output of the additional memory element associated with the control input of the second motion task unit, and the output of the EXCLUSIVE element OR is connected to the control input of the reversible counter, the discharge outputs of which are connected to the first inputs of the comparator, the second inputs These are connected to the outputs of the lifting height setting unit, and the output is connected to the second and first inputs of the first and second NAND elements, the outputs of which are connected respectively to the installation inputs to the one and zero state of the additional memory element, the second output of which is connected to the control input of the first task unit of the driving mode, and the output of the inverter is connected to the second input of the second NAND element. Way down /// ll ЯFZl / 7 Editor P.Geershi FIG. 2 Compiled by V. Kopylov Tehred V. Kadar Order 3762/18 Circulation 720 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, D Proofreader G. Reshetnik