SU1206108A2 - Vibration mixer - Google Patents

Description

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The invention relates to the construction machinery industry, namely to machines for the preparation of building mixtures, including dispersedly reinforced, and is an improvement of the invention according to bus No. 916329.

The purpose of the invention is to improve the quality of the mixture by improving its uniformity.

Figure 1 shows a diagram of the vibratory mixer; figure 2 - section aa in figure 1.

The vibratory mixer contains a rotational drive incorporating an electric motor; tel 1 connected to the gearbox 2; Hf of the low-speed shaft of which the elastic coupling 3 is installed is connected to the mixing body 4, on the shank of which the driving gear 5 is fixed, which engages with the driven gear 6 located on the bearing, and is connected by an elastic coupling 7 to the second mixing body 8. On the high-speed shaft of the gearbox 2, the driving pulley of the 9 chain variator and the carrier of a dihhydric differential are fastened. The variator drive pulley 9 is connected via a plate chain to a driven pulley 11, which is rigidly connected to gear 12, kinematically associated with the epicyclic differential wheel 13. and the central wheel 14 of the planetary unbalance drive, which engages with unbalanced satellites 15 placed on a carrier 16 fixed on the shank of the mixing organ 4. The carrier 10 of the differential is connected via a satellite 17 by means of satellites 17 and an epicyclic wheel I3 to a central wheel 18, on which a central wheel is fixed About 19 additional planetary unbalance actuators, which are in engagement with unbalanced satellites 20, which are placed on a carrier 21 mounted on the second mixing body .8. Drove 16 and 21 planetary unbalance drives through overrunning clutches 22 are kinematically connected to the tachogenerators 23, which are connected in series to the servomotor 24. In addition, an adjustable voltage source 25 is connected to it in the opposite tachogenerators 23polarity.

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The vibratory mixer works as follows.

The rotational movement of the engine J through the gearbox 2 through the elastic 5 coupling 3 is transmitted to the mixing body 4 and with the help of synchronizing gears 5 and 6 through the elastic coupling 7 to the mixing body 8. The rotation of the fast shaft 10 is transmitted to the drive pin 9 of the variator by means of a plate chain is transmitted to the driven pulley 11, the central wheel 14 of the planetary unbalance

(Drive 5. And by means of gear 12 - on the epicyclic wheel 13 of the differential. The differential provides the summation of the movements of the carrier 10 and the epicyclic wheel 13 with output through the central wheel 18 to the central wheel I9 of the additional planetary unbalance drive.

Rotation from drove 16. and 21 through

25, the overrunning clutches 22 are transmitted to the tachogenerators 23, while the angular velocity of the shaft of the tachogenerator 23 is close to the maximum angular velocity of the mixing bodies 4 and 8.

  . 30 s-umma.rnny signal produced by

tachogenerators 23, is compensated by the signal of the source 25 of the velocity voltage, therefore, the servomotor 24 is not turned on, the investigator 35 np and the gear ratio of the variator remains unchanged. With a change in the load on the mixing organs 4 and 8, for example, with an increase in the resistance to mixing, the amplitude of the vibrations of the mixing organs decreases, as a result of which the angular velocity of the tachogenerator 23 decreases, the electric signal produced by the tachogenerators 23,

45 is summed up and subtracted from the signal generated by variable voltage source 25, and the resulting signal is fed to the variator control servo motor {ser50, the motor runs as long as the difference signal exists). With this, the transmission ratio of the variator changes (in this case decreases), then the angular

55, the speed of the steering gear 12 increases (US), and therefore, the speed of the central wheel 14 and the epicyclic wheel 13 increases, which leads to an increase in the speed of the satellites 17, which means that the oscillation frequency and the dynamic moment on the mixing bodies 4 and 8 will increase.

The change in the amplitude-frequency characteristics occurs until the difference signal becomes zero. A similar picture of the opposite direction occurs with the opposite sign of the difference signal, and the system maintains a close

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to the optimum mixing mode. The intensity of the change in the angular velocity of the central wheels 14 and 19, and consequently, the amplitude-frequency characteristic of the vibration mixing, is determined by the kinematic parameters of the cylindrical differential. In order to ensure an optimal mixing mode for different types of mixtures, it is necessary to change the output signal of the variable voltage source 25.

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VNIIPI Order 8620/16 Circulation Signature Affiliate Filial PPP Patent, g.Uzhgorod, ul.Proektna, 4

Claims (1)

VIBRING MIXER No. 916329, characterized in that, in order to improve the quality of the mixture by improving its homogeneity, it is equipped with a variator with flexible coupling and with a servomotor for controlling it, a cylindrical differential, tachogenerators with overrunning clutches, and a drive variator pulley and carrier are mounted on the high-speed reducer shaft a cylindrical differential, the epicyclic wheel of which is mounted coaxially with the central wheel of the planetary unbalanced drive, and the driven pulley and pinion gear of the cylindrical differential are mounted They are coaxial with the central wheel of the additional planetary unbalanced drive, while the planetary unbalanced drives are connected via overrunning couplings to tachogenerators electrically connected to the adjustable voltage source and the variator control servomotor. Figure 1 SU, 1206108> 1 12061