SU1766684A1 - Gravity mixer - Google Patents

Abstract

Use: for gravity mixing of materials. Essence: two pairs of support rollers in the form of pneumatic tires are mounted on the frame, and one of the pairs is connected to the drive in the form of a driving axle of the vehicle. The rollers are equipped with a drum with end loading and unloading devices. The loading device has a nozzle with rollers in contact with an annular groove made on the outer surface of the shell, which is attached to the end of the drum at its loading opening. The unloading device has a lid, which is fitted with a monTyrinewad on a rod secured by the BS and the drum, and actuated by a pneumatic cylinder. 1 hp f-ly, 4 ill.

Description

This invention relates to mechanical engineering for the building materials industry, in particular to gravitational mixers.

A gravitational mixer for producing concrete mixes and mortars is known, comprising an actuator, a frame, a drum with loading and unloading holes, mounted in a turning bracket for tilting in order to unload the mixer using a pneumatic cylinder and return to the loading device.

Torque to the drum is transmitted by a ring gear from a gearbox mounted on a pivot bracket.

The ring gear has rolling surfaces on the outer diameter: the support and the side, holding the drum in a certain state, ensuring the normal engagement of the gear and the ring gear 1.

The disadvantage of the known mixer is the difficulty in manufacturing, large

metal consumption, large drive power consumption, inconvenience in operation,

A mixing device, selected as a prototype, contains a drum mounted on the support rollers with end loading and unloading holes and paddles on its inner surface, fixed along its axis by means of radial elements a rod on which the cover of the discharge opening with its mechanism is mounted reciprocating movement, loading device and rotational drive of drum 2,

A disadvantage of the known device is low productivity.

The purpose of the invention is to increase productivity.

This goal is achieved by the fact that in a known mixing device containing a drum mounted on the support rollers with end loading and unloading holes and paddles on its inner surface,

WITH

with

Vj

oh oh

N

along its axis by means of radial elements a rod on which the lid of the discharge opening is mounted with a mechanism for its reciprocating movement, a loading device with a seal and a drive, the drum at the loading hole is provided with a shell with annular grooves on the outer and inner surface, and the lid is radially located perpendicular and oblique to its working surface by blades; in this way the mechanism for moving the lid is made in the form of a pneumatic cylinder mounted with a soyno rod vmokollektorom, and a feed device in the form of a pipe radially mounted brackets rollers contact with the working surface of the sleeve outer annular groove, said seal taken in its inner bore.

Figure 1 shows the mixer, a longitudinal section; in Fig.2-mixer, cross section; on fig.Z - the cover of the discharge opening; 4 shows the working surface of the cover.

The gravity mixer consists of a drum 1 mounted on frame 2 by means of four rollers 3, which are pneumatic tires. One pair of rollers 3 is connected to the drive in the form of a driving axle of the automobile 4, which receives torque from the electric motor 5.

To secure the drum 1 against axial displacement, limiters 6 are installed on it, between which grooved tracks 7 are made for more reliable adhesion of the rollers 3 to the drum 1.

On the flange 8, having a loading opening, a shell 9 is installed with grooves on the inner and outer surfaces, into which a charging pipe 10 is inserted, on which the brackets 11c are mounted radially with rollers 12 in contact with the working surface of the outer annular groove of the shell 9. The pipe 10 is mounted cT a gap on the dispenser nozzle 13 and is sealed with an elastic material 14. A sealing ring is placed in the internal bore of the shell 9. Screw blades 15 are mounted on the inner surface of the drum 1 for mixing and feeding the mass to the side of the discharging opening of the drum 1.

On the radial elements 16 and 17, an axis 18 is mounted along the axis of the drum 1, which acts as a support for the cover 19 with a sleeve 20 that is movably mounted on the shaft journal with

using the movable keyed joint 21. Radial blades 22 and 23 are mounted on the working surface of the cover 19. The cover 19 has stiffening ribs 24 and

bracket 25 for driving the cover 19 by a pneumatic cylinder 26 connected to the opposite end by means of a fork 27 with a rod 18.

For air supply on bracket 28 in

0 hole, through the center of which passes the axis of the shaft, installed pneumocollector 29.

Gravity mixer works as follows.

The electromotor 5 is driven by a leading pair of rollers 3, which cause the drum 1 to rotate. Through the metering nozzle 13 and the charging nozzle 9, the components of the mixture are fed into the drum 1. When this cover 19 is closed.

0 Rotation of the drum 1 causes the mixture to be moved for a set period of time sufficient for proper mixing of the mixture. Then the cover 19 is opened.

5 pneumatic cylinders 25. Through a gap formed between the lid 19 and the end of the drum 1, the mass of the screw blades 15 is removed from the drum 1. After which the lid 19 closes and the cycle repeats.

0

Claims (2)

1. Gravity mixer, which contains a drum mounted on the support rollers with end loading and unloading holes and blades on its inner surface, fixed along its axis by means of radial elements a rod on which the discharge opening cover is mounted 0 reciprocating movement, a loading device with a seal and a drive, characterized in that, in order to increase productivity, the drum at the loading opening is provided 5 shell with annular grooves on the outer and inner surfaces, and the lid - radial blades located perpendicularly and obliquely to its working surface, while the mechanism The displacement of the cover is made in the form of a coaxially mounted pneumatic cylinder with a pneumatic collector, and a loading device in the form of a nozzle with radially mounted brackets of guide rollers in contact with 5 working surface of the outer annular groove of the shell, and the seal is placed in its inner groove. 2. Mixer floor 1, characterized in that, in order to increase convenience in 517666846 In operation, it is equipped with an additional mobile, with the supporting and additional rollers connected to the drive, the rollers made in the form of pneumatic tires made in the form of a drive axle.    / V / 3 20 / 21,27,26 / 28/29 FIG 2 nineteen 22 23 i 22 Puzj nineteen