SU926496A1 - Furnace car pusher - Google Patents

Description

(54) HEATER CARRIAGE PUMP

The invention relates to equipment for the production of building materials. A kiln carriage pusher is known, which contains a carriage mounted in guides with a rotary support and drive, a relay and a power source C1. A disadvantage of this device is the unreliable operation of the pusher. The closest to the technical essence is a kiln carriage pusher containing a carriage with a pivoting stop and drive installed in guides, a relay, a power source, a contact brush, memory elements and delays And a logic element, an additional relay and a conductive panel electrically insulated and located napaifelno guide carriage, and the contact brush mounted on the carriage's rotary support, the closing relay contact is connected to the inputs of the memory elements and delays, the outputs of which through the element And p Connected to the input of an additional relay 21. In this pusher the tire is constantly under voltage, which reduces the safety of work and limits the area of its use. The goal is to improve working conditions. The goal is achieved by the fact that the kiln carriage pusher, containing a carriage with a swivel support and drive, is installed in guides, a relay, a power source, a contact brush, memory elements and delay, an AND logic gate, an additional relay and a conductive bus, electrically insulated and located parallel to the carriage guide, the contact brush is fixed on the carriage's rotary stop, the closing KOHTaiKT relay is connected to the inputs of the memory elements and delays, the outputs of which through the AND element are connected to the input add nogo relay is provided with a control actuator blokoM carriage contactor and step-down transformer.

the control unit is connected to the output of the additional relay and to the input of the contactor, the closing contact of which is connected to one pole of the power source and one of the terminals of one of the windings of the step-down transformer, the other terminal of which is connected to the other pole of the power source, is opened via a conductive bus to the relay, which is connected to another winding step-down transformer.

The drawing shows schematically the pusher and the connection between its electrical elements, a general view.

The pusher contains a carriage 2 installed in guides .1 and connected to drive 3 via chain 4. The carriage is equipped with a rotatable spring-loaded stop 5, which is adapted to interact with the stops 6 of the trolleys positioned randomly on the rail 8. The contact brush is welded to the swivel stop 5 9, made with the possibility of contact with the conductor bus 1O, mounted parapleno guide 1. The conductor bus bar is isolated from the guides by means of a gasket 11 and connected to a low-voltage source power 12, relay 13 and rail. The output of the relay 13 is connected to the inputs of the memory element 14 and the delay element 15, the outputs of which are connected to the inputs of the logic element 16 I. To the output of the element I, an additional relay 17 is connected, controlling through the control unit 18 a carriage drive. The tire and the grounded track are interconnected via the disconnecting contacts of the contactor 19, the winding of which is electrically connected to the control unit 18, for example, using interlocking contacts. In addition, there is a step-down transformer (or groups of transformers) 20, in the primary winding of which the closing contacts of the contactor 19 are included. About the coil of the contactor 19 is electrically connected to the control unit 18.

The pusher works as follows.

When receiving the command to supply the trolley from the control unit 18, the drive 3 of the carriage 2 is turned on and the latter is mixed in the direction of 8 trolleys randomly arranged on the track 8. At the same time, the contactor 19 turns on from the unit 18, the opening contacts of which disconnect the tire from the track and the closing contacts supply voltage to the winding of the transformer 2О. When approaching the first of the trolleys, the stop 6 of this trolley acts on the pivot stop 5 of the carriage 2. When the stop rotates, its contact brush 9 closes with the conductor bus 1O. Since the carriage 2 is electrically connected to grounded rails 1

and by rail 8, the brush 9 closes the bus 10 with them. The winding of the relay 13 is supplied from the power source via grounded guides and the contact between the thickness 10 and the brush 9. Since

contacting the bus with the tire due to irregularities or pollution of the bus, short-term contact interruptions are possible, to control the drive signal supplied to the b; wc 18 | converted by the circuit

the memory 14 and the delay element 15. The memory circuit remembers the moment of the beginning of the contact, and the delay element delays by 0.5-1.0 s the signal at the output during its disappearance at the input.

The carriage 2 continues to move with the clamped pivot stop 5 until the stop 6 of the trolley 7 leaves the zone of action on it, after which the pivot stop 5. spring and counterweight return

to the starting position. Signals from elements 14 and 15 are fed to logic element 16. At the output of this element, the signal is received when memory element 14 is turned on, but under the condition that there is no signal from delay element 15, i.e. after turning angle 5 meets with support 6 of the trolley (the memory circuit turned on) and went for it (the turning support returned to its original position

the signal and signal from the delay element disappeared).

The signal from the output of the element 16 includes an additional relay 17, which provides, through the control unit 18, a carriage drive reversal. Simultaneously with the signal reversal, unit 18 is turned off until a new command for supplying the trolley is supplied to contactor 19, the closing contacts of which de-energize the primary winding of the transformer 20, and the opening contacts connect the USB bus via an earthed rail track.

At the beginning of the return stroke, the pivot stop 5 grabs the support 6 of the trolley and the latter moves with the carriage 2 to the predetermined location.

Claims (2)

Thus, the located. In the workshop, the isolated Tapering tire is under tension only at the moment of movement of the carriage behind the cart, i.e. while the presence of people in this zone is excluded. All the rest of the time, the wiring remains grounded through the low-resistance windings of the relay transformer and in parallel through the breaking contacts of the contactor. The use of the proposed technical solution will make it possible to increase the safety of work and expand the area of the pushers. Claims of the kiln carriage pusher comprising a carriage with a swivel support and drive mounted in guides, a relay, a power source, a contact brush, memory elements and delays, a logic element I, an additional relay and a conductive bus electrically insulated and positioned pair for the carriage guide, the contact brush is fixed on the rotary stop of the key, the closing contact of the relay, is connected to the inputs of the memory elements and delays, the outputs of which are connected through the AND element to the input nogo relay, characterized in that, in order ulupieni working conditions, it is provided with a carriage drive control unit, a contactor and a step-down transformer, wherein the control unit is connected to the output of the additional turnips and contactor input zamykayupshy contact; which is connected to one pole of the power source and to one of the terminals of one of the windings of the step-down transformer, the other pin of which is connected to the other pole of the power source, disconnecting to)) the contactor stroke is connected to the turnip through another conductor, which is connected to the other side of the step-down transformer . Sources of information taken into account in the examination 1. Pusher furnace trolleys SMK-. 147, M., 1MIETESTROYMASH, 1977. 2. USSR author's certificate №.737762, cl. F 27 D 3 / O4, 1977 (prototnp).