SU420869A1 - - Google Patents

Description

(54) DEVICE FOR MONITORING THE KINEMATIC ERROR OF GEARS

cycles of IS and 19; limiting amplifiers 20, 21, 22 and 23, triggers 24 and 25; pulse frequency doublers 26 and 27 and sum, mator 28.

The device works as follows.

The signals from sensors 1 and 2 go to the corresponding drivers 3 and 4 and then to frequency dividers 5 and 6, from which, after dividing the controlled transmission gear ratio in accordance with the numerator and denominator, to the phase meter 7, where the phase signals are selected and the signal the mismatch, which is fixed by the recorder 8. Signals arrive at the amplifier-limiter drivers 3 or 4 through the normally closed contacts of the switch 9. The limit amplifiers select the square-wave signals, which rye supplied to the flip-flops 24 and 25, and which is isolated rectangular signals with the same phase ratios, which triggers on the input, but within limits not passed crosstalk signals superimposed on the main signal and does not exceed the latter in magnitude.

Indeed, if the signals to the trigger input are applied in antiphase, and the pickup in the phase, the pickup H (see Fig. 3), the same for both channels, can change the state of the trigger once per period of the useful signal P and only at point A close to zero of the useful signal, in which the ratio of the levels of the sum signal at the trigger inputs changes its sign. For this, the phase shift between the useful sensor signals is provided by a corresponding offset of the sensor removers, and the sensor windings are turned on along the way. The signals from the flip-flops are doubled at the frequency doublers and the pulses 26 and 27 associated with both of the flip-flop outputs, and then summed in the adder 28. Thus.

at the output of the adder, the frequency of the pulses can be obtained quadrupled relative to the frequency of the sensor signal.

If there is no need for quadrupling, you can close the switch contacts (not shown in the drawing) and open the contacts 14, 15, 16 and 17 to disconnect the lower half of the driver. In this case, the signals on the upper half of the imager come from the windings of the sensors connected in series with each other, increasing the coverage wall in the sensor.

P ip e dme t inventions

A device for monitoring the kinematic error of gears, containing a sensor for the initial and final parts of the transmission, frequency dividers, a phase meter whose inputs

connected to the outputs of the frequency dividers, a recording device electrically connected to the outputs of the phase meter, characterized in that, in order to increase the accuracy and reliability of the control, it is equipped with two

shaper output signals of the sensor, each of which is connected to the input of the corresponding frequency divider and made in the form of a switch with contacts, amplifiers-limiters connected to the outputs of the switch, triggers, to the inputs of each of which signals are supplied from the corresponding amplifier-limiter, doublers frequencies of impulses, each of which is connected to the outputs of the corresponding trigger, and adder,

the inputs of which are connected to the outputs of the doublers, and each of the sensors is equipped with four signal extraction systems, each of which is shifted relative to each other in phase by 90 electrical degrees and which

Nodayut on the contacts of the switch.