SU1348286A1 - Apparatus for monitoring lift cage position - Google Patents

Abstract

The invention relates to a lifting and transport technology and provides for an increase in the reliability of the device. The device contains a pulse distributor, made in the form of three relays switching at polarity of the supply voltage of the relay with magnetic memory. The closing and opening contacts of the first relay are connected in alternate order by bridge. The winding of each relay is connected to a specific bridge diagonal from the contacts of other relays. This embodiment of the pulse distributor allows reducing the number of parts of the device, increasing its reliability. 1 il.

Description

The invention relates to lifting machinery and is designed to control and monitor the position of the cabin in the elevator shaft.

The purpose of the invention is to simplify the design of the device and increase its reliability by reducing the amount of equipment used in it.

The drawing shows the principle of contact 19.1, preparing for

on the device diagram.

The device contains a power source 1, connected to it contacts 2 and 3 of the downward direction relay and contacts 4 and 5 of the upward direction relay, pulse distributor consisting of the first relay 6 with contacts 6.1-6.8, the second relay 7 with contacts 7.1-7.6 and the third relay 8 with contacts 8.1 and 8.2, the selection sensor with contacts 9-13 and the floor selection relays: 1А - with contact 14.1 15 - with contacts 15.1 and 15.2, 16 - with contacts 16.1 and 16.2 | 17 - with contacts 17.1 and 17.2 | 18 - with contacts 18.1 and 18.2 and 19 - with contact 19.1.

The device works as follows.

Suppose the cabin is on the first floor. In this case, the selection sensors are located between the shunts of the floor zone and its contacts 9, 11 and 12 are open, and contacts 10 and 13 are closed. The voltage on the coils of the relay 6-8 pulse distributor and the coils of the floor relay 14-19 selection is missing. Contacts 6.1, 6.4, 6.5, 6.8, 7.2, 7.3, 7.5, 8.2, 15.2, 16.2, 17.2, 18.2 and 19.1 relays 6-8 and 15-19 are open. Contacts 6.2, 6.3, 6.6, 6.7, 7.1, 7.4, 7.6, 8.1, 14.1, 15.1, 16.1, 17. and 18.1 relays 6-8 and 14-18 are closed. Contacts 2 and 4 of the up and down direction of movement relay are open, and contacts 3 and 5 of these relays are closed.

When receiving an order from the elevator car or calling from the floor platform (for example, the third one), the upward motion direction relay (winding not shown) is turned on, which closes contact 4 and opens contact 5. When interacting with the cab movement, the selection sensor installed on the car the output shunt of the first floor closes its pins 9, 11 and 12, and pins 10 and 13 open, thus turning on the floor relay 19 of the circuit selection: the positive pole of the power source 1, pin 4, pin 7.6, pin 18.1, relay coil 19, pin 12, com 3 m, the negative pole of the power source 1. Turning on, the relay 19 registers the exit of the elevator car from the area of the first floor, while closing

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the work of the chain of floor relay 18 selection of the second floor.

Simultaneously with the switching of the relay 19, the third relay 8 of the pulse distributor along the circuit is disconnected: the positive pole of the power supply source 1, pin 4, contact 7.1, contact 9, contact 6.3, winding of the relay 8, contact 6.2, contact 7.4, contact 11, contact 3, negative pole power source 1. Contact 8.2 is closed and contact 8.1 is opened, preparing the pulse distributor circuit for operation in the interfloor area following the exit-shunt.

When the selection sensor interacts with the output shunt of the first floor, contacts 10 and 13 of the sensor close and its contacts 9, 11 and 12 open, and the second relay 7 of the pulse distributor along the circuit is disconnected: positive pole of the power supply 1, contact 4, contact 6.6, winding relay 7, contact 6.7, contact 13, contact 8.2, contact 3, negative pole of power supply 1. The contacts 7.2, 7.3 and 7.5 are closed and the contacts 7.1, 7.4 and 7.6 are opened. By disconnecting the relay 7, the presence of a cabin in the interstage area beyond the odd floor in the direction of movement of the cabin is recorded.

Upon further movement of the cabin, the selection sensor interacts with the entrance shunt of the second floor. The contacts 9, 11 and 12 of the sensor are closed and its contacts 10 and 13 are opened, as a result of which the third relay 8 of the pulse distributor is switched on: the positive pole of the power supply 1, contact 4, contact 7.2, contact 6.2, the winding of relay 8, contact 6.3, pin 9, pin 7.3, pin 11, pin 3, negative pole of power supply 1. Turning on relay 8 registers the cabin entrance to the floor zone of the second floor, at that its contact 8.1 is closed and contact 8.2 is opened, preparing the circuit

Pulse distributor for operation B in the inter-shunt gap in the floor area of the second floor.

 Simultaneously with the relay 8, the floor relay of selection 18 is switched on according to the circuit: the positive pole of the power supply source 1, contact A, contact 7.5, contact 19.1, contact 17.1, the relay coil 18, contact 12, contact 3, the negative pole of the power supply 1. Turning on relay 18 registers the arrival of the cabin in the floor area of the second floor. After termination of the interaction of the selection sensor with the input shunt of the second floor, contacts 9. 11 and 12 of the sensor open and its contacts close.

10 and 13, in this case the first pulse distributor relay 6 is switched off along the circuit: the positive pole of the source

1 power supply, contact 4, contact 7.2, winding relay 6, contact 10, contact 7.3, contact 8.1, contact 3, the negative pole of the power supply 1. This registers the departure of the cabin from the entrance shunt of the second floor. Upon further movement of the cab, the selection sensor interacts with the output shunt of the second floor, contacts 9, 11 and 12 of the sensor close and its contacts 10 and 13 open, causing the third distributor relay 8 on the circuit to turn off: the positive pole of the power supply 1, contact 4, contact 7.2, contact 6.4, relay coil 8, contact 6.1, contact 9, contact 7.3, contact 11, contact 3, the negative pole of the power supply 1.

Upon termination of the interaction of the selection sensor with the output shunt of the second floor, contacts 10 and 13 of the sensor are closed and its contacts 9, 11 and 12 are opened, and the second relay 7 of the pulse distributor along the circuit is turned on: the positive pole of the power supply 1, contact 4, contact 6.5, winding relay 7, contact 6.8, contact 13, contact 8.2, contact 3, negative pole of power supply 1. By switching on the relay 7, the presence of a cabin is registered in the interstand zone behind the even floor in the course of the cabin movement.

Upon the arrival of the cabin at the third stop, the selection sensor interacts with the input shunt of the third floor, and contacts 9 are closed,

11 and 12 sensors and open it

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contacts 10 and 13. As a result, the relay 17 of the selection of the third floor is switched on via the following circuit: positive pole of power supply source 1, contact 4, contact 7.6, contact 18.2, contact 16.1, relay winding 17, contact 12, contact 3, negative pole of power supply 1. Simultaneously with the relay 17, the third relay 8 of the pulse distributor is connected along the circuit: the positive pole of the power supply source 1, contact A, contact 7.1, contact 9, contact 6.1, the relay coil 8, contact 6.4, contact 7.4, contact 11, contact 3, the negative pole of the source 1 food.

After termination of the interaction of the selection sensor with the input shunt of the third floor, contacts 9, 11 and 12 of the sensor are closed and its contacts 10 and 13 are closed, the first relay 6 of the pulse distributor along the circuit is turned on: the positive pole of the power supply 1, contact 4, contact 7.1, contact 10, relay coil 6, pin 7.3, pin 8.1, pin 3, negative pole of power supply 1.

Upon the arrival of the cab to the exact stop level of the third floor, the upward directional relay is disconnected, its contact 4 is opened, and contact 5 is closed. As a result, the relay supply voltage included in the device is turned off. The state of the electrical circuit corresponding to the presence of a cabin on the third floor when the power supply is disconnected is maintained by the magnetic memory of the relays included in the device.

The operation of the circuit during the downward movement is similar to that described, but instead of the upward direction of the relay, the downward directional relay is switched on, and the floor selection relays that were turned on upwards are turned off during the downward movement.

The proposed device makes it possible to reduce the number of storey selection relays and exclude a special power source with a midpoint, which makes it simpler in design and more reliable in operation.

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rmula of invention

A device for tracking the position of the elevator car, containing a power source, a selection sensor with closing and opening contacts, an up and down movement direction relay, a pulse distributor with a first and a second relay, and a floor selection relay, characterized in that the distributor impulses is supplied with the third relay, and the first and second impulse distributor relays, the selection sensor and the up and down movement direction relays are provided with additional contacts, with the closing and opening The up and down direction relay contacts are respectively connected in two successive circuits, each of which is connected to one of the power supply poles and the other to the other, the third pulse distributor relay is connected to the diagonal of the bridge formed by the contacts of the first pulse distributor relay and connected through the disconnecting contact of the selection sensor to the diagonal of the -1post formed by the contacts of the second pulse distributor relay, to which the first relay is connected in parallel distributor pulses through normally open contact probe selection, and the other diagonal of the bridge is connected with one terminal to the junction between the relay contacts the direction of movement upwards and the other

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through the parallel connected contacts of the third pulse distributor relay and the selection sensor to the contact point of the downstream directional relay contacts, the second pulse distributor relay is connected to the bridge diagonal formed by the contacts of the first pulse distributor relay, and the other diagonal of this bridge is connected to the contact point of the relay contacts direction of movement upwards, and others through the closing contact of the selection sensor and the opening contact of the third pulse distributor relay - to the connection point Forcing the contacts of the downstream directional relay, and some conclusions of the elevations of the floor selection relays are connected to the connection point of the downward direction relay contacts via the opening contact of the downward sensor, others are connected in series with the closing contacts of the previous floor selection relay and the next contacts of the relay windings odd floors are connected to the junction of the contacts of the relay of the direction of movement up through the short circuit of the contact of the second relay of the pulse distributor, and and relay coils selection even floors - through the break contact of the same relay.

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Editor M.Petrova

Compiled by L. Reznikova

Tehred L. Oliynyk Proofreader A.Obruchar

Order 5162/21 Circulation 720 Subscription

VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

55 claims A device for tracking the position of the elevator car, containing a power source, a selection sensor with closing and opening contacts, a relay of up and down direction, a pulse distributor with: second and second relays and floor relay lectures, characterized in that, in order to increase reliability devices, the pulse distributor is equipped with a third relay, and the first and second pulse distributor relays, the selection sensor and the up and down direction switches are equipped with additional contacts, while closing and opening the contacts of the up and down direction switches are connected respectively in two serial circuits, each of which is connected by make contacts to one of the poles of the power supply, and by disconnect contacts to the other, the third pulse distributor relay is included in the diagonal of the bridge formed by the contacts of the first pulse distributor relay and connected through the NC contact of the selection sensor 25 into the diagonal of the bridge formed by the contacts of the second relay of the pulse distributor, to which the first relay is connected in parallel the pulse distributor through the make contact of the selection sensor, and the other diagonal of this bridge is connected by one output to the connection point of the upstream direction relay contacts, and the other through parallel connected contacts of the third pulse distributor and selection sensor to the connection point of the down direction relay contacts, the second relay the pulse distributor is connected to the diagonal of the bridge formed by the contacts of the first relay of the pulse distributor, and the other diagonal of this bridge is connected to one output to the connection point of the upstream direction relay contacts, and another through the make contact of the selection sensor and the NC contact of the third pulse distributor relay - to the connection point of the down direction relay contacts, and some pin marks of the floor selection relays are connected to the connection point through the open contact of the selection sensor contacts of the downward direction relay; others are connected in series with the closing contacts of the selection relay of the previous floor and the opening contacts of the next, when In this case, the winding circuits of the odd-floor selection relay are connected to the connection point of the upstream relay contacts via the make contact of the second relay of the pulse distributor, and the winding relay circuits of the even-floor selection relay are through the make contact of the same relay.