SU1212537A1 - Two-shaft mixer - Google Patents

Description

2. The mixer according to claim 1, about tl and - due to the fact that the additional kinematic connection is made in the form of hollow working shafts placed inside and connected between the invention. The invention relates to the technique of preparing bulk solids for the preparation of multicomponent mixtures. industry, building materials industry and other areas of the national economy.

The purpose of the invention is to improve the quality of the mixing process by increasing the amplitude of the longitudinal oscillations of the mixed components.

On fkg. a mixer is given, general view; in section 2, section A-A in FIG. (the basic scheme of the mixer and its drive is developed); on fig.z section bb in figure 2 (the scheme of the hinge four); Fig. 4 is a kinematic working diagram of the mixer drive; Fig. 5 is a diagram of the longitudinal circulation of the material being stirred and the axial movement of the contour towards the discharge side.

The mixer consists of primary

1 and the secondary 2 hollow working shafts placed in the mixing chamber 3. The shafts are provided with radial blades 4, installed at an angle to the longitudinal axis of each working shaft. The value of this angle is equal to the friction angle of the bulk material on the material of the blades. Shafts 1 and

2c are gear, pair 5. The drive 6 of the working shafts 1 and 2 consists of an electric motor 7, an articulated four-wheel hanger 8 and a planetary differential mechanism 9 (figure 1

and 2) .

The mechanism 9 consists of the sun gear 10 mounted on the shaft 11, drove 12 with the shaft 13 and satellites 14, as well as the non-spliced epicycle 15 with the nozzles 16 and 17.

they are a toothed pair of two transmission rollers, one of which is connected by a coupling to the shaft of the sun gear, and the rotary crank is located at the tip end of the other.

The hinge four-bar 8 will consist of a full rotary crank 18, oscillator. 19, rigidly mating with the housing 20 of the epicycle 15 and connecting rod 21 thereof. The crank 18 is connected to the shaft 11 of the sun gear 10 by an additional kinematic coupling 22, consisting of two transmission rollers 23 and 24, placed inside the hollow shafts 1 and 2, respectively. and interconnected by gear pair 25 (FIG. 2 and 3).

Ball I1 of the sun gear on one side is connected by a coupling 26 to the shaft of an electric motor 7, and on the other by a coupling 27 to a transmission roller 23. Shaft. i 3 drove 12 is connected by a coupling 28 with the primary working shaft 1.

The crank .18 is rigidly fixed on the console section of the transmission roller 24 (Fig. 3).

Nozzles 16 and 17 of epicycle 15 are installed in bearing supports 29 and 30. All components of the mixer are mounted on pin 31.

The mixing chamber 3 has a sectional receiving hopper 32 and a discharge port 33 (FIG. L).

Twin shaft mixer works as follows.

The working shafts 1 and 2 rotate towards one another, and each of them simultaneously participates in two circles: the portable and relative.,

Portable movement has the character of continuous uniform rotation with an angular frequency of + co. Each of the shafts 1 and 2 receives this movement as follows (figure 2)

From the electric motor 7 through the coupling 26 receives a rotation with a frequency of

oh, the shaft 1I of the sun wheel 10, the sun wheel 10 drives the satellites 14 into rotation, which cause the carrier to rotate in the same direction 12, so that

. k-and

 + tJ

e g

()

where Yi.i. is the gear ratio of the planetary gear from the sun gear to the water. ,

The shaft 13 drove through the coupling 28 drives the primary shaft I with the same frequency + Wg. By means of the gear pair 5, the secondary is given & shaft 2 in BQTpe4Hoe rotation with angular frequency - WgThis movement ensures circular mixing of the material and its axial movement towards the discharge side.

At the same time, the sunwheel wap 11 causes the transmission roller 23 to rotate through the coupling 27, which gears the roller 24 and the rotary crank 18 toothed the gear roller 25 through a gear train 25. ).

The oscillator 19 informs the epicycle 15 a reciprocating motion

2537

with an angular frequency (W. Epicycles acts on satellites 12, and they impart an additional reciprocating rotational motion to 12 with an angular frequency of 5

"Lt

(2)

where the gear ratio of the planetary mechanism from epicycle to carrier.

This reciprocation, the movement through the clutch 28 is transmitted first. Wapu 1, and from it through a serrated pair 5 - to the secondary shaft 2.

The working shafts communicate by means of the blades 4 an additional round and axial circulation of the mixed material.

The oscillatory contour of the axial circulation of the material is shown in FIG. This circuit, due to the rotation of the shafts with a frequency, o, is continuously moving towards the discharge of the mixture through the nozzle 33.

Work shafts, therefore, participate in complex, absolute circular motion with angular often

that with about (fig. 4)

. +

WITH,

(3)

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fl / / fP // cc (P TMffi

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G v /

KC "HH HG1

1 Yu

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Claims (2)

1. TWO-SHAFT MIXER,. comprising primary and secondary hollow working shafts with radial blades located in the mixing chamber, kinematically connected by two gear wheels, as well as a working shafts drive including a rotary motor, characterized in that, in order to improve the quality of the mixing process by increasing the longitudinal amplitude vibrations of the components being mixed, the drive of the working shafts is made in the form of a four-link articulated shaft consisting of a full-rotated crank with an oscillator and a connecting rod closing them , and the differential-planetary mechanism formed by the sun gear, the carrier with the satellites and the non-secured epicycle, while the sun gear is connected directly to the motor shaft, the carrier is connected by a clutch to the primary working shaft, the oscillator is rigidly coupled to the epicyclic of the planetary-differential mechanism, and the full-swing crank with sun gear shaft with additional kinematic connection " SU „„ 1212537 Figure 1 2. The mixer according to claim 1, wherein the additional kinematic connection is made in the form of two transmission shafts located inside the hollow working shafts and connected by a gear pair, one of which is connected by a clutch to the sun gear shaft, and on the console at the end of the other is a full-swing crank.