SU1209551A1 - Device for tracking lift cab position - Google Patents

Description

The invention relates to a lifting-transport technology and can be used in control systems of elevators in devices for tracking the position of the elevator car in the mine,

The purpose of the invention is to improve the tracking accuracy.

FIG. 1 shows a circuit diagram of the device; in fig. 2 is a diagram of the placement of shunts in the mine.

The device contains sensors 1 and 2 of selection, installed on the bin and interacting with the corresponding shunts 3 and 4 of odd and even floors, respectively, connected through the distributor-former 5 to the recalculated node, performed on countable bits 6, interconnected by reversible keys 7. Display outputs 8 are connected to the outputs of the counting bits 6 of the counting node.

Each counting bit 6 includes an input key element 9 connected through power amplifiers 1 to memory elements — two winding 1 G relays with magnetic memory, in the circuits of which windings T2 and 13 diodes are connected. Contacts 14 and 15 of these relays included in the input circuit of one trigger 16, the output of which through another key element 17 is connected to the inputs of another trigger 18, the output of the KO foporo is the output of the counting bit. One of the inputs of the reversing keys 7 is connected to the buses 19 and 20 of the up and down motion signals, respectively.

The device works as follows.

When the elevator car moves, sensors 1 and 2 of even and odd floors, respectively, interact with shunts 4 and 3 placed in the mine, and signal that arrives at the input of the distributor-former 5 pulses, from the output of which signals arrive at the inputs of the key elements of 9 counting bits Dov 6.

When moving the elevator car up (down) on bus 19 (20) there is a signal from the control system, which then goes to the inputs of the keys 7, thereby opening the direct (reverse) counting channel.

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Suppose the elevator car is on the first floor and the elevator received the direction of movement upwards, i.e. there is an enable signal on bus 19. Consequently, in the keys 7, channels are open for direct counting, through which the direct outputs of the previous counting bits are connected to the control inputs of the next count bits. .

The elevator car moves along the shaft; signals from 1 sensors 2 and 2 of the cabin interact with shunts 3 and 4 through the distributor-driver 5, which are summed (subtracted) at the scoring node when the cabin moves up (down).

Switching of each bit 6 occurs when the signals coincide only on the key elements 9. The signal from the output of the open element 9. Includes one of the power amplifiers 10, which passes current through the corresponding switching windings of the relay 11. The relay contacts are switched, i.e. lock-; The open circuit is closed, and the open circuit is closed, and the power is connected to the ground pin from the setup inputs of the trigger 16.

After the end of the signal at the input of the counter bit 6, the element 9 closes and the key element 17 opens and switches the trigger 18 to a new state. This new state of bit 6 is transmitted by key 7 to the input of the next countable bit 6.

The state of all countable bits Q of the device is indicated by block 8.

When disconnected or short-term, the power supply voltage disappears in the elevator control system, the counting unit is also de-energized, but the relay 11 with magnetic memory retains its state.

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When the supply voltage recovers, pins 14 and 15 of relay 11 restore the state; the trigger 16, and accordingly, via the key element 17, restores its state and the trigger 18.

Thus, the counting bits restore the code recorded before the power supply turned off, and rts are ready to receive the next input signal.

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Editor O. Bugir

Compiled by G. Korneva Tehred Z. Kastelevich

448/26 Circulation 800 Subscription

VShDPI State Committee of the USSR

for inventions and discoveries .113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, Proektna St., 4

Fik.2

Proofreader L. Pilipenko

Claims (1)

DEVICE FOR MONITORING THE POSITION OF THE ELEVATOR CABIN, containing selection sensors installed on the cab, interacting with shunts located in the mine and connected via a shaper-shaper to a conversion unit, to the output of which an indication unit is connected, characterized in that, in order to improve tracking accuracy , the recounting unit is made on counting bits interconnected by reversible keys, while each counting bit contains key input elements made on AND elements, associated with them Memory tapes made on double-winding relays with magnetic memory and two triggers connected by a key element, while the installation inputs of one trigger are connected to the power source through the contacts of the double-winding relay with magnetic memory, and the outputs of the other trigger are counted discharge outputs. SU „„ 1209551>