SU582575A1 - Device for adjusting original phase in combined phasing systems - Google Patents

Description

frequency knob 12 and frequency divider 13. At the same time, the output of the oscillator 8 clock frequency is connected via multiplier 12 to one of the inputs of the first trigger 1, to the other input of which the output of the second switch 7 is connected, and to the control input of the first switch 2 whose output is connected to the control input of the first electric motor 3 through the frequency divider 13. In addition, the output of the second sensor 9 of the position of the shaft 10 is connected to another input of the second trigger 6.

FIG. 2, and given pulses at the output of the generator 8 clock frequency; in fig. 2, b - impulses at the output of a 12-frequency multiplier; in fig. 2, b - pulses at the output of the second sensor 9; in fig. 2, g - pulses at the output of the first sensor 5; nafig. 2,3-signal at the output of the second trigger 6; in fig. 2, e - pulses at the output of the second key 7; in fig. 2, das signal at the output of the first trigger 1; in fig. 2,3 pulses at the output of the first key 2; in fig. 2, n - pulses at the output of the frequency divider 13.

The device works as follows.

In the initial position, the state of the flip-flops 6 and 1 is zero. In this case, the key 2 is opened, the electric motors 11 and 3 are given pulses of the same frequency, and the shafts 10 and 4 rotate at a synchronous speed. With the arrival of the pulse of the sensor 9, the trigger 6 is transferred to the unit state, which, in the absence of generator pulses, is retained until the pulse arrives from the sensor 5, after which it returns to its original state. This mode corresponds to the in-phase (with an accuracy of the period of the pulse generator 8) rotation of the shafts 10 and 4 (section I in Fig. 2).

If the rotational rotation of the shafts 4 and 10 is disturbed in the gap between the pulses, the sensors 9 and 5 receive one or more pulses of the generator 8. In this case, the state changes to a single trigger 1 (section P in Fig. 2), as a result of which the inhibitory potential The key 2 and the arrival of a pulse from frequency multiplier 12 are used to cut one pulse at the input of frequency divider 13. The same pulse trigger 1 returns to its original state, which remains until the next pulse of generator 8 arrives, after which the process is carved pulse is repeated. The power frequency of the electric motor 3 is reduced and recovered only after the rotation of the shafts 4 and 10 is reached. Due to the fact that the phase shift between shafts 4 and 10 at each rotation of the motor 3 decreases, the duration of the steps for pulsing the motor 3 is also reduced smoothly approaching synchronous.

The phasing speed can be adjusted within wide limits by simultaneously changing the coefficients of frequency multiplier 12 and frequency divider 13. This automatically achieves a proportional law of change of phasing speed depending on the level of rotation speed of shafts 4 and 10, which favorably affects the dynamic parameters of the device.

If necessary, changes in the wide speed range of rotation of the shafts 4 and 10 change the frequency of the generator 8.

The device eliminates the need for the elements to be adjusted when the rotational speed of the phased shafts 4 and 10 is changed, thereby extending the working range of the rotational speeds of the shafts 4 and 10.

Claims (1)

Invention Formula An apparatus for setting the initial phase in combined phasing systems, comprising a first trigger connected in series and a first switch, as well as a first motor connected in series with a shaft, a first shaft position sensor and a second trigger, the output of which is connected to one of the inputs of the second switch to another input generator output connected the clock frequency directly, and the input of the second shaft position sensor via a second motor connected in series with the shaft, characterized in that in order to expand the range of operating shaft rotational speeds and increase the phasing accuracy, a frequency multiplier and a frequency divider are introduced, while the output of the clock frequency generator through the frequency multiplier is connected to one of the inputs of the first trigger, to the other input of which the output of the second key is connected, and to the control input of the first key, the output of which is connected To the control input of the first motor through a frequency divider, in addition, the output of the second shaft position sensor is connected to another input of the second trigger. Sources of information taken into account during the examination 1. USSR Copyright Certificate № 291368, cl. G 11 B 15/44, 1972. and S {g d e fK 3 and