SU493994A1 - Locomotive Wheel Gauge Meter - Google Patents

Description

(54) SLIDING METER FOR WHEELED LOCOMOTIVE Pairs

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The invention relates to the field of railway transport and can be used as a device for detecting slipping in locomotives with electric transmission of alternating direct current.

Devices for measuring wheel slip slip are known, which include pulse sensors, electronic switches, storage units mounted on each controlled axis and connected to each other, an AND logic element, the output of which is connected to the input of the reset generator, and its output is connected to an input logical blocks

the OR element, the locomotive mode control unit, the hold line, the auxiliary generator.

The purpose of the invention is to increase the reliability of work and improve the properties of the locomotive.

For this, in the device the output of the auxiliary generator through electronic commutators is connected respectively to the input; the control unit, the entrances of the memory blocks KOB and to the delay line, the output of which is connected to the input of the control unit, and the input is connected to the output of the OR logic element, whose inputs are connected in parallel to the corresponding inputs of electronic switches, to the inputs of the AND logical gate, and the outputs of each pulse sensor are connected to one of the inputs of the corresponding electronic switch.

The functional scheme of the slip meter is shown in the drawing.,,

The device consists of six completely identical counting circuits and a control circuit. Each counting circuit consists of an electronic switch 1 and a storage unit 2 The electronic switch 1 has two operating inputs 3, 4, control input 5, an open input 6 and an output connected to the input of the storage unit 2. On. working inputs 3 switches receive frequency signals /

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from speed sensors wheel pairs. The inputs 4 receive frequency signals from the auxiliary generator. You add-ons of the storage units 2 are connected to the inputs of logic gates AND 7 and OR 8. Control inputs 5 are turned on when OR 8 is turned on. If there is no signal at inputs 5 and 2 of the switch, switches 1 pass the frequency signals f, and 1 the signal at the inputs 5 controls - signals / When a signal arrives at the blocking inputs of b, switch 1 does not pass any signals. The storage units 2 serve to store information received through the electronic switches 1. After the storage unit 2 is completely filled, it sends a signal to the blocking input 6 of the switch 1 and to the control circuit. The control circuit consists of logic elements AND 7, OR 8, generator 9, reset, line 1O of the delay, the switch 1 of the auxiliary generator 12 and the unit 13 for controlling the mode of operation of the locomotive. The logic element AND 7 serves to receive at its output a signal when signals are received at all inputs from the storage units 2. Output The second signal of the logical element AND triggers a reset generator 9, which serves to return the storage blocks to the initial state. The logical element OR 8 serves to receive at the output a signal when a signal arrives at any input from any storage unit 2. The output signal of the logical element OR 8 is fed to the input 5 of the control of switch 1 and to the line 1O for the center. The delay line 1O is arranged in such a way that, at its output 14, a pulse appears, which resets the locomotive operation control unit 13 to its initial state. After this pulse passes, a delay line 1O arrives at switch 11. This signal lasts until a signal from element OR 8 arrives at the input of delay line 1O. Switch 11 opens when a signal arrives at its input from the delay line Yu. When opened, the switch 11 passes to the electronic switches 1 and to the control unit 13 a signal / from the auxiliary generator 12. As an auxiliary generator, any type of frequency generator can be used, including the tachogenerator of one of the wheel sets. The principle of operation of the slip gauge wheelset next. In the initial state, the storage units 2 do not contain information on the control inputs and the blocking inputs of the switches 1, the signals are absent, in the control unit 13 information is not contained. When a diesel locomotive moves without slipping, the speed of all the wheel pairs is the same and the frequencies / from the wheel speed sensors. on the inputs 6 of the switches 1 and on the logical elements AND and OR, the element AND will turn on the reset generator 9, which will return the storage units 2 to their original states. The element OR 8 through the delay line 1O causes a reset pulse to the control unit 13. After returning the storage units 2 to the initial states, the signals from the logical elements AND 7 and OR 8 will be removed and the next counting cycle will begin. When a wheelset is stalled, the frequency of its speed sensor increases. The filling time of the storage unit 2 of this wheel pair is reduced. After the memory block 2 is completely filled up, the output wheel signal is sent to the blocking input of the switch 1 and to the logical elements AND 7 and OR 8. After the signal arrives, the state of the logical element 7 does not change, since for the signal its output requires the presence of signals at all inputs of the logical element AND 7. The same position of the elements OR 8 will change: at its output by Eets a signal that closes: sce electronic switches 1 through control input 5 for the length of frequencies from the sensors of compression and will start ling 1O th delay. Delay 1O delay first causes a reset pulse to control unit 13, and then, after passing a reset pulse, opens a com-. mutator 11. Signals from auxiliary generator 12 through switch 11 will begin to fill in the remaining under-closed memorizing blocks 2 and parallel signals to block 13 of the controller. Logic will turn on element And 7, the triggering generator 9 reset. Reset generator

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will return the storage units 2 to the initial state. The next counting cycle will begin, but the control 13 will store information about the difference in speed of the wheelset until the next counting cycle and the delay line 10 is triggered.

The fact that information is recorded in the control unit 13 is proportional to the difference in wheelset speeds, the following is displayed: Element OR 8 is activated after filling in the first storage unit. After in addition: Sha: of the OR element 8 the remaining blocks from the auxiliary generator 12 are filled with one element and the same frequency / which begins

go to the control unit 13. As the remaining storage blocks are filled, they transition to self-charging via the blocking inputs 6 of KOMNiyTaTopOB 1. After the last storage block 2 is filled and all are reset to the same state, the switch 11 is closed and the frequency access to the control unit 13 is stopped. Thus, in the control unit 13, the number of pulses is recorded, which supplements the name of the very first storage block until it is completely filled, provided that one of the storage blocks at the time of recording additional pulses is completely filled

Since the number of pulses recorded in each storage unit is proportional to the speed of the wheelset, the difference of the pulses is proportional to the difference of the speeds of the wheelsets.

Claims (1)

Invention Formula Locomotive wheelset slip gauge, containing impulse sensors, electronic commutators, storage units installed on each controlled axis, AND logic element connected to the input of the sphero generator, the output element associated with the storage blocks, the OR logic unit, and the locomotive control unit , a delay line, auxiliary, characterized in that, in order to increase the reliability of the game and improve the traction properties of the locomotive, the output of the auxiliary generator e switches are connected respectively to the input of the control unit of the locomotive operation mode, the inputs of the storage blocks and the delay line, the output of which is connected to the input of the control unit, and the switch is connected to the output of the OR logic element, whose inputs are connected in parallel to the corresponding inputs of electronic switches, to the inputs of the logical element I and to the outputs of the corresponding storage units, and the outputs of each sensor of the pulses are connected to one of the inputs of the corresponding electronic switch. / k i 7V k l l N "M "N “J - i h  " five lJb "C Mb fr Nb . / 1 / v / c N "N % i iTb Ijb CCs f h f