SU927909A1 - Dredger soil intake - Google Patents

Description

(kJ GROUND CONSTRUCTION OF SURGE CONNECTION

I

The invention relates to the construction, in particular, to the production of land works by means of hydromechanization, and is intended for the development of soils in underwater fences.

A dredger milling and suction unit is known, which contains a suction chamber with incisors on its surface and circular openings in the chamber walls at the bases of incisors C1.

A disadvantage of the known milling-suction device is the low productivity due to the large gap in the loosened soil when moving from the loosening zone to the suction zone and sticking during the development of bonded clay soils.

The closest to the invention according to the technical essence and the achieved result is a dredging device of the dredge containing a suction tip and a ripper in the form of two cutters rotating against each other cutters 12.

This device has the complexity of the design and insufficient intensity of the process of loosening, m

The purpose of the invention is to increase the intensity of the soil gathering process.

The goal is achieved by the fact that in the soil-collecting device of the dredge, which includes a cultivator in the form of parallel cutters with incisors mounted on a shaft and rotating opposite to each other and an intake pipe located between them, each cutter is made in the form of a helical spiral and is provided with an additional shaft, while the ends spirals are fixed on the main and additional shafts.

In addition, the spiral turns are made of a strip material.

FIG. 1 shows the proposed soil-collecting device of a dredger, general view; in fig. 2 - view A on

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figure 1; Fig, 3 screw cutter, longitudinal section.

The earthmoving device of the dredger contains a suction pipe 1, with a suction funnel 2 located between the screw cutters 3 and, each of which is equipped with incisors 5 and made of strip 6, twisted onto a rib at an angle .to the center line Z of the helix and rigidly fixed with nuts 7 and 8 na rotating in different directions with equal angular velocities of shafts 9 and 10, brought into rotation through the gearbox 11 from the shaft 12.

Groundwater device Zemsno: p yes works as follows.

Screw cutters 3 and i, driven in rotation through the gear 11 from the shaft. 12, are submerged and submerged underwater. Loosened by the cutters 5 of the deformable cutters 3 and the soil moves in the intake funnel 2 of the suction pipe 1.

The use of the invention in comparison with the known devices allows to intensify the process of loosening the soil, since the energy accumulated by each of the deformable screw cutters for each of their turns is realized in the form of elastic

vibrations on the working surfaces, which allows the effect of vibro-disintegration and eliminates sticking during the development of cohesive clay soils.

Claims (2)

1. A ground dredger device, including a ripper in the form of parallel cutters with cutters mounted on a shaft and rotating towards each other, and an intake pipe located between them, in order to increase the intensity of the ground catching process, each mill is made in the form of a spiral helix and is provided with an additional shaft, with the ends of the helix fastened to the main and additional shafts. 2. The device according to claim 1, characterized in that the turns of the spiral are made of strip material. Information sources . taken into account in the examination 1. USSR author's certificate number 613022, cl. E 02 F 3/92, 1978. 2. USSR author's certificate number 562657, cl. E 02 F 3/88, 197.