SU907443A1 - Shaft rotation cyclogram analyzer pickup - Google Patents

Description

I

The invention relates to the technique of measuring the angular velocity and acceleration of irregularly rotating shafts with cyclically varying loads, to the technique of assessing the nature of their change depending on the rotation of the monitored shaft during the rotation from the set zero angle value. It can be used in automated process control systems (APCS) when it is required to evaluate for compliance with the norm of the rotational pattern of the controlled shaft. In particular, in the textile industry it can be used in the process control system of weaving when monitoring the cyclogram of rotation of the main shafts of controlled weaving looms.

A laboratory complex is known that provides control of one skg of rotation of the main shaft of the weaving loom during the scientific research of the work of the loom MRxaiJH3MOB. With its iso1O1: 1B, the oscillo-

graphing the operation of the sensors associated with the main machine shaft on the time diagram of the oscilloscope l.

The disadvantage of this complex is that it takes a lot of effort when it is used to install sensors, interpret oscillograms, a limited number of angles of rotation, the moments of passage through which are fixed by sensors. The complex is not widely used.

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It is also known a device comprising an electric motor, the shaft of which is mechanically connected to the input shaft of an electromagnetic clutch, on the output axis of which a flywheel is put on, an angle gauge

15 turns and the sensor element immersed in the test liquid. The sensor consists of a sensing element, the input of which is mechanically connected to the monitored shaft, the first output is connected to the first input of the control unit, the second input of which is connected to the first input of the sensor, the one-vibrator, the outputs of which are connected

with the first inputs of the forward key and the delay key with the second inputs of which are connected to the output of the time pulse generator, the output of the forward key is directly, and the output of the following key with delay through the delay line is connected to the first input of the time pulse counter, the outputs of which are connected To the inputs of a group of amplifiers Reader time. The sensor measures the viscosity of the monitored fluid by measuring the time intervals between evenly spaced marks in the process of stopping the sensing element initially spun up to the required angular velocity and the parts connected with it. Thus, this device can be adapted to measure the rotation scattergram. It is only necessary to select the label corresponding to the zero position of the shaft 2.

However, to control the rotation of the shaft to the caled of the required angles, often differing by fractions of a degree, the number of marks along the circumference of the angle angle gauge must be very large. In the case when the study of Aodlel and the period of shaft rotation at one or several predetermined angles, a large number of redundant signals are fed into the memory of the computer to which the output of the sensor is connected. This requires a storage capacity that is connected to the sensor of the computer and an increase in the amount of computer time spent on analyzing the information received. Thus, a disadvantage of the known device is the large redundancy of the information output.

The purpose of the invention is to determine the instability of the angular velocity at any predetermined participation of the shaft.

The goal is achieved by inserting a passable channel and a channel of output labels, each of which consists of a serially connected register, a read amplifier, a counter, a decoder and a driver, a control trigger, a control, a control key, a control, and a control key labels, and vhbdy registers of the number of issued and skipped tags are connected respectively to the second and third input of the sensor, the output of the control unit connection

with the second inputs of the number reading amplifiers, with the R-input of the time pulse counter and the 5-input of the control trigger of output labels, the R-input of which is connected to the output of the input labels and the R-input of the control trigger of the passed labels, and the output to the first the input of the control key of the issued labels, the second input of which is connected to the second output of the sensing element, and the output - to the second input of the counter of the number of the passed labels and to the first input of the control key of the passed labels, the second input of which is connected to the output Trigger poisoning skip marks, and the output - to the input of monostable multivibrator, a second input of the counter tags issued and a second input group the read time amplifiers, the output of the skip mark S is connected to a trigger control to skip -Log labels

The drawing shows a block diagram of the sensor.

The sensor includes a register 1 of the number of tags to be skipped, in which a code of the number of tags is recorded after the zero value of the angle of rotation of the monitored shaft, signals about the passage of which are not output by the sensor, register .2 of the number of tags issued, which records the code of the number of tags, signals about the passage which are issued by the sensor unit 3 controls, on command from the outside includes the sensor in operation, the sensitive element 4, forming at the outputs single impulses when the monitored shaft is rotated at a given angle, the amplifier 5 is reading h Isla skip tags, rewriting the contents of the register 1 of the number of skip marks into the counter 6 of the number of skip marks at the command of the pulse output from the block. 3 controls, counter b of the number of skipped tags, reducing its content by one after fixing the passage of the label by the sensitive element 4, amplifier 7 reads the number of labels issued, rewrites the contents of register 2 of the number of labels issued into the counter 8 of the number of labels issued by a pulse command from the output of control block 3 , the counter 8 of the number of issued tags, reducing its content by one after fixing the passage of the label by the sensitive element 4, the decoder 9 of the transmitted tags, which changes the voltage level on when resetting the output to zero

the contents of the counter 6 of the number of skipped tags, the decoder 10 of the output labels, which changes the voltage level at the output when the contents of the counter of the number of output labels 8 are zero, the shaper 11 of the transmission marks, issuing a single voltage pulse when the voltage decoder appears at the output of the decoder 9 skip marks, shaper 12 gates issued, issuing a single voltage pulse when a voltage drop occurs at the output of the decoder 10 grids, trigger 13 controls the skip marks, controlling the The mode of operation of the key 14 of the control of the passed marks, the key 14 of the control of the passed tags, through which the pulse signals of the passage of the tags arrive at the output of the sensor, the trigger 15 controls the output of the labels, controls the operation of the key 16 of the control of the issued tags, the key 16 controls the issued tags, prepares the channel the passage of pulses of signals about the passage of tags to the output of the sensor, a generator of 17 pulses of time issuing rectangular pulses of a stable frequency, a single vibrator 18 controlling the pulse following channels co-generator of 17 pulses of time, a key of 19 direct following, which transmits impulses of a generator of pulses of time 17 in the absence of pulses at the output of the sensitive element 4, a key of 20

following with a delay, a guide pulse of the time pulse generator 17 to the delay line 21 when there is a pulse in the output of the sensitive element 4, a delay line 21, delaying the pulse, a pulse time generator 17 for the time of the pulse at the output of the sensitive element 4, a pulse counter 22, summing incoming pulses of a generator of time pulses 17; a group of amplifiers of reading time; 23 23 outputting a sensor; a parallel binary code of the time of the appearance of pulses of signals about the passage of met OK,

The elements of the sensor interact with each other as follows. The input of the sensing element 4 is mechanically connected to the monitored shaft, the first output is connected to the first input of the control unit 3, and the second output is. with the second input of the key 16 control issued labels. The second input of the control unit 3 is connected to the first input of the sensor, and

the output is with the second inputs of amplifiers 5 and 7 of reading the number of skipped marks and output marks, with the S input of the trigger 15 controlling the output tags and the R input of the counter 22 time pulses. The register input 2 of the number of output labels is connected to the second input of the sensor, and the output is connected with the first input of amplifier 7 to count the number of output labels. Register input 1 of the number of passed tags is connected to the third input of the sensor, and the output is connected to the first input of amplifier 5 to read the number of passed tags. The second input of the counter 6 of the number of transmitted pulses is connected to the first input of the key. 14 controls the skip marks and the output of the trigger 16 controls the skip marks, the first input is with the output of the amplifier 5 and reads the number of skip marks, and the output is with the input of the decoder 9 skip marks. The second input of the counter 8 of the number of issued tags is connected to the output of the key 14 of the control of the passed marks, the input of the one-shot 18, the second input of the group of amplifiers 23 of time reading. The first input of the counter 8 of the number of tags to be output is connected to the output of the amplifier 7 to read the number of tags output, and the output is connected to the input of the decoder 10 output tags. The input of the shaper tag generator 11 is connected to the output of the decoder 9 skip tags, and the output is connected to the S input of the control of the skip tags 13 control. The input of the output tag generator 12 is connected to the output of the decoder 10 output tags, and the output is connected to R. - the triggers input 13 and 15 control skip marks and issued tags. The output of the trigger 13 control skip marks connected to the first input of the key 14 control skip tags. The output of the control trigger 15 of the issued tags is connected to the first input of the key 16 of the control of the inserted tags. The output of the generator 17 of the time pulses is connected to the second inputs of the keys of the direct 19 and 20 following and following with the delay. The outputs of the one-shot 18 are connected respectively to the first input of the direct forward key 19 and to the first input of the following key 20 with a delay. The input of the line zadi 1zhi 21 is connected to the input of the following key 29 with the delay, and the output to the output of the key 19 of the direct following and a disconnected input of the counter 22 kmpulsov time.

The first group of inputs of the group of amplifiers 23 of the readout of time is connected to the group SOUGHT; counter 22 pulses of time, and the group of their outputs - with the first group of outputs of the sensor.

The sensor works as follows.

Before the beginning of each next cycle of analysis of the cyclogram of rotation of the monitored shaft, registers 2 and 1 of the number of issued marks and transmitted marks through the second and third inputs of the data are recorded binary codes. These codes specify the number of signals to be issued about the turn of the monitored shaft at a marked angle and the number of previously passed marks, which are not required in the analysis being performed. Thereafter, a voltage is applied through the first sensor input to the second input of the control unit 3, enabling the sensor to operate. In the presence of this voltage, the Cald: 1b1 pulse from the first output of the sensing element 4, corresponding to 1. GC {zero zero turn of the monitored shaft, passes to the output of the control block 3. From here it is fed, firstly, to the O, -input counter of 22 time pulses, setting it to zero. Secondly, it translates to one state the trigger 15 of control of the output tags. From its output to the first input of the key 16 of the control of the issued tags, an enabling voltage is applied that opens the key. Thirdly, at his command there are 5 registers of registers 1 and 2 of the number of skipped tags and the number of bypassed tags by amplifiers 5 and 7, reading the number of skipped tags and issued tags are rewritten, respectively, into counters 6 and 8 of the number of marks and issued tags

The pulses of the generator 17 of the pulses of time in this mode through the open control voltage of the one-shot 18 key 19 directly follow to the first input of the counter 22 time pulses and add IR; measure the time that has progressed from the moment of finding the depi of the controlled shaft to the position g / left angle.

When fixing the sensing element 4 with the passage of the next mark, at its second output, voltage is applied to it. It passes through the o-private key 16 of the control of the labels and enters the first input of the key 14 of the control of the passed marks} VG-ora input counter 6 number

skipped. Klk - h J-1 uprli. tags in this mode} anKjii.ir, and imggulig; tension through it does not fail. Counting 1 number of skipped marks

upon arrival of the pulse, the code contained by the unit is reduced. Thus, the signal about the rotation of the monitored shaft at a certain angle mark on the output of the sensor is not given.

Described sensor operation mode

 continues until the contents of the counter 6 of the number of skipped tags becomes zero. If the specified condition is met at the output

5 decoder 9 skip marks Vits resolving potential under the influence of which shaper 11 skip marks deliver a single impulse to its output. Under the influence of

By the action of this pulse, the trigger 13 of the control of the skipped tags will go into a single state. In this case, to the second input of the key 14, the control of the passed marks from the output of the trigger 13

the control of the skipped marks will be given to the resolving potential, opening the key.

Claims (2)

When the pulse of the next pulse is detected at the second output of the sensitive element 4, which has fixed the passage of the next mark, it will pass through the public keys 16 and 14 of the control of the marked marks and the skipped marks. From the output of the last key, it arrives at the second output of the sensor, tl a signal about the passage of the next mark. At the same time, it passes to the second input of a group of amplifiers 23 of time reading, which, at the command of this pulse, a parallel binary time code is output from the beginning of the controlled shaft rotation until the sensor element 4 in question is fixed to the mePSI in order to prevent the time code from being distorted reading the time pulse caused by reading the contents of the counter 22 at the moment of counting, the pulse from the output of the key 14 of the control of the skipped marks is fed to the input of the single-impactor 18, which one into an unstable condition, closes the direct follow key 19 and opens the following follow key 20 with a delay. The next impulse from the output of the generator 17 pulses and time through the klhch 2f following with the delay comes in (. 21, in k. 1 tors) and c i move to KOP1Sh (.; CHIT1.GVCHI1 (I -, IPp (. 4- time pulse counter 22. After that, it also enters the gervy (the first time pulse counter input 22 is added to and added to it. When the reading is completed, the one-shot 18 returns to a stable state, and the generator pulses of the 17 time pulses are transmitted again via the direct forward key 19 Finally, the impulse from the output of the control key 14 is skipped marks is fed to the second input from When the content of the counter is 8, the number of issued labels will be equal to zero, the decoder 10 of the issued labels will issue at its output allowing the potential, upon receipt of which the former 12 issued labels will form a single an impulse that will translate the triggers 13 and 15 of the control of the skipped marks and the output methods to the zero state. Keys 14 and 16 in the direction of the passed tags to the issued tags will be closed. Thus, after issuing the required number of signals within one revolution of the monitored shaft, their arrival at the sensor outputs completely ceases. A new cycle of the sensor is occurring after the appearance at the first output of the sensing element 4 of a new impulse - sa indicating that the monitored shaft has started a new turn. The termination of the sensor operation is achieved by removing the permissive potential from the second input of the control unit 3 (the first sensor input). DETAILED DESCRIPTION OF THE INVENTION The sensor of the analyzer cyclogram of rotation of the shaft, containing a sensitive element, whose input is mechanically connected to the monitored shaft, is output connected to the first input of the control unit, the second input of which is connected to the first input of the sensor, a single vibrator whose outputs are connected to the first inputs of the dongle following the key with the rear key, the second inputs of which are connected to the output of the time pulse generator, the output of the direct following key is indirect, and the output of the following key with delay Through a lanyard, they are connected to the first input of a time pulse counter, the outputs of which are connected to the inputs of a group of time reading amplifiers, characterized in that, in order to determine the instability of the angular velocity on any predetermined shaft section, a channel of transmitted signals and a channel of output tags are entered, each of which consists of serially connected registers, a read amplifier, a counter, a decoder and a driver, a control trigger for the transmitted tags, a control trigger for issued tags, a control key of the transmitted tags and the control key of the issued tags, the inputs of the registers of the number of issued and transmitted tags are connected respectively to the second and third inputs of the sensor, the output of the control unit is connected to the second inputs of the amplifiers to count the numbers, with the R input of the time pulse counter and the 5 input of the trigger control of issued labels, R is the input of which is connected to the output of the formers} of issued labels and R. to the input of the trigger of control of the passed labels, and the output to the first input of the control key of the issued labels, sec The input of which is connected to the auxiliary output of the sensing element, and the output to the second input of the counting number of passed marks and to the first input of the control key of the passed tags, the second input of which is connected to the output of the control trigger of the passed tags, and the output to the one-shot input, the second input of the counter issued by the tags and the second input of the time reading amplifier group; the output of the skip marks maker is connected to the 5 Tpiirrepa input of the skip marks control. Sources of information taken into account in the examination 1. Koritissky Ya. I. and others. Complex mechanical research of the automatic loom ATK-10O. b. Investigation of weaving machines. Proceedings of V1-IILTEK / .ASH. Ashgiz, M., 1957. 2. USSR author's certificate number 648883, cl. G01 P 3/64, 1978 (prototype).