SU1390531A1 - Device for checking viscosity of concrete mix - Google Patents

Abstract

The invention relates to the continuous control of the technical viscosity of a concrete mix at varying humidity of aggregates during the preparation process. The purpose of the invention is to simplify the design and increase the reliability and durability of the device. In the process of mixing the concrete mix with the rotating gearbox housing 4 and the rotor 3 with blades, the viscometric body 10 with the console 9, meeting the resistance of the concrete mix, interacts with the plunger of the strain gauge 11 of the viscosity of the concrete mix, which is a converter of the force created by the viscosity of the concrete mix, and converts it into an electrical signal. The electrical signal from the concrete mixture viscosity sensor 11 is wired in the form of a cable 13 to a sliding system 12 with spring-loaded contacts rotating with the housing of the gearbox 4 of the rotor 3. From the spring-loaded contacts of the sliding system 12, the signal through the wires in the form of a cable 13 is transmitted to the recording device 15. 2 Il. from € cl

Description

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The invention relates to the continuous control of technical viscosity or stiffness, and the mobility of a concrete mix during its preparation for use in enterprises mainly in the production of concrete and reinforced concrete, in the building materials industry and in construction.

The purpose of the invention is to simplify the design, increase the reliability and durability of the device.

FIG. 1 shows the device, general view, section I in FIG. 2 is an annular sliding system with spring-loaded contacts, top view and in section.

A device for continuously controlling the viscosity of a concrete mix includes a forced-acting concrete mixer 1 with base 2, a rotor 3 with a gearbox housing 4 and a shaft 5 of a gearbox 4. A beam 6 is fixed to the rotor 3, on which the eyes 7 are fixed with a bracket 8, the console 9 with a viscometer body 10 and strain gauge viscosity sensor 11. The lower end of the gearbox housing 4 around the shaft 5 of the gearbox 4 with the base 2 of the concrete-bearing 1 is a sliding system 12 with spring-loaded contacts connected by wires in the form of cables 13 and 14 with a viscosity sensor 1 1 and registering a self-writing device 15.

As a viscosity sensor 11, a standard factory-made measuring force theisometric sensor (type Y-universal 1 U-1) with an annular sensing element was used. These sensors are given in reference books.

Sliding system 12 with spring-loaded contacts consists of four copper rings 16-19, made in the form of a wedge, each ring is located separately from one another, reinforced with bolts on six strips 20-25 of textolite insulating material and fixed with two bolts using strips 20 and 21 at the lower end of the gear housing 4 around the shaft 5 of the gear housing 4. The spring-loaded contacts consist of four copper contacts 26-29 with triangular recesses and are bolted to the strip 30 of textolite insulating material. Level 30 with con

steps 26-29 are secured with two,,, and right bolts 31 and 32 on the rack 33. The guide bolts 31 and 32 are equipped with supporting springs 34 and 35, which are located between the bar 30 and the stand 33. The supporting springs 34 and 35 are designed for creating a reliable contact. Rack 33 is fixed by two bolts on the base 2 of the concrete-bearing 1. To the rings 16-19 of the sliding system 12, wires in the form of cable 13 are connected from sensor 1 1 viscosity, and spring-loaded contacts 26-29 of the sliding system 12 are connected in wires in the form of cable 14 recording recorder 15.

A device for continuously controlling the viscosity of a concrete mix works as follows.

In the process of mixing the concrete mix (Fig. 1 and 2) by rotating the gearbox housing 4 and the rotor 3 with the viscosity body 10 with the console 9, meeting the resistance

concrete mix, interacts with the plunger 36 and the annular sensitive element 37 with strain gauges

50 55

thirty

R

35

40

R strain gauge 11

the viscosity of a concrete mix, which is a transducer of the force generated by the viscosity of a concrete mix, and converts it into an electrical signal. The electrical signal from the concrete mixture viscosity sensor 11 is wired in the form of a cable 13, which is transmitted to an annular contact 16-19 of a sliding system 12, which rotates with the case of a rotor gearbox 4, and annular contacts 16-19, interact with spring-loaded contacts 26-29 of a sliding system systems 12, transmit a signal over wires in the form of a cable 14 to a recording recorder 15, the scale of which is calibrated to the viscosity of the concrete mix.

Claims (1)

Invention Formula A device for viscosity control of a concrete mix containing a concrete carrier with a lid, a rotor with a gearbox and a console arm, on which a viscometric body is fixed, which interacts with a viscosity sensor, a recorder, in order to simplify the design and increase the reliability and durability of the device, The viscosity sensor is connected to the recorder through a sliding system, the first contacts of which are located P 20 view of the track from the bottom end of the gear housing around its shaft, and the second, spring-loaded, contacts are installed on the base of the concrete-bearing. J 21 ±