SU1209738A2 - Apparatus for controlling ice-breaking unit - Google Patents

Description

This invention relates to machines for cleaving ice from road surfaces.

The purpose of the invention is to increase the reliability of work.

FIG. 1 shows a block diagram of the proposed device; in fig. 2- constructive execution of the ice-splitting unit.

The device comprises a scanning unit 1, the output of which is connected to the emitter 2, the receiver 3 and the amplifier-limiter 4 connected in series with it and the detector 5 zero. The first 6 and second 7 power amplifiers, connected by their outputs to the drive 8 of the ice-splitting unit, are installed on the ice-cutting unit. To the input of the amplifier 7 is connected to the output of the digital-to-analog converter 9. The device also contains a data entry console 10 with a register 11, a comparator 12 connected to the register 1 1 and the input of the first power amplifier 6. The pulse generator 13 is connected to one of the inputs of the first 14 and second 15 elements I. A detector 5 zero is connected in parallel with the first inputs x; keys 16 and 17, the outputs of which are connected to the first trigger 18, the second trigger 19 and the third trigger 20. In this case one output of the key 17 is connected to the zero output of the trigger 20. The first counter 21 is connected to the element I 14 and to the comparator 12, and the second counter 22 sec. oo- is connected to the digital-to-analog converter 9 and the second element And 15 The working unit of the ice-splitting unit contains a comb with teeth 23, placed radial but in the cylinder 24 filled with liquid 25. On the side opposite the comb, is mounted a piston 26 cooperating with drums 27, 28 of the rotor rings.

When the ice is chipped off, the rotor 28 rotates and the rings 27 located on it strike the piston 26. The precipitation transfers through 25 the impact energy to the tooth 23, which causes the ice to break. The scanning unit 1 generates pulses for the start of scanning a roadbed covered with an uneven (different thickness) layer of ice. These sinusoidal pulses A are emitted by emitter 2 in the direction of the road.

canvases and are reflected from it as two signals B and C, successively in time to the input of receiver 3. From receiver 3 output, the first signal B is fed to the input of a 5 zero detector, made in the form of a Schmitt trigger, which at through zero produces a first reference pulse passing through the key 16 open in the initial state by a high potential of the trigger 20, to the single inputs of the trigger 19 and the trigger 20, transferring the latter to the opposite state, in which the key 16 is closed and the key 17 from covered The trigger 19 opens the element And 15, connecting the counter 22 to the generator 13 pulses. In parallel with this, at the time of the beginning

scanning unit 1 sets the trigger 18 to one state, in which the trigger 18 opens the element 14 with its high potential, thereby connecting the pulse generator 13 to the counter 21. B the moment the signal C arrives from the detector output 5 the second reference pulse passes through the key 17 to the zero input of the trigger 19 and returns it to its original state. Element AND 15 closes and counter 22 records a number proportional to the thickness of the ice being scanned at that moment. The code taken from counter 22 is fed to a digital-to-analog converter 9, from which a constant voltage through an amplifier

The power is fed to the drive 8 of the precalking unit, adjusting the amount of its force applied to the coating to be cleaned.

At the same time, the second reference pulse from the output of the second key 17 is fed to the zero input of the trigger 18, returning it to the initial state and thereby closing the element I 14.

As a result of this, the counter 21 fixes a code whose value is proportional to the height of the position of the emitter 2 signals above the roadway. If this value does not match the preset, which is stored in register 11 and entered there from the console 10, the comparator 1 2 generates a valid signal, which through the power amplifier 6 enters the drive 8 and lowers (or raises) the signal sensor above the road.

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Compiled by G. Belotserkovsky Editor A. Shishkin Tehred L. Kikemezey Corrector. Syrohman

Order 475/35 Circulation 515 Subscription

VNIIPN USSR State Committee

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

Branch PPP Patent, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR MANAGING ICE-CHIPPING UNIT according to ed. St. No. 11 62891, characterized in that, in order to increase the reliability of its operation, it is equipped with a data input panel with a register, a comparator connected to the register and output of the first counter, a second power amplifier, the input of which is connected to the output of the comparator, and the output is connected to the drive of the ice-breaking unit, while the output of the amplifier of the limiter is connected to the input of the zero detector, the output of which is connected in parallel with keys connected by the outputs to the unit inputs of the second and third triggers, and the output of one of the keys is connected to zero vym input of the first trigger. Figure 1 88Z60ZI ^ha AS>