SU4417A1 - Icebreaker with a drive, breaking the ice mechanism - Google Patents

Description

FIG. 1 shows a schematic side view of the proposed icebreaker; FIG. 1 is a section along AB of FIG. 1 and in FIG. 2, 3 and 4 details.

Icebreaker 1 (Fig. 1) with its inclined nose 2, in places of contact with the ice to be broken, is equipped with one or several shafts 3 with screw blades 4; bearings 5 allow the shaft 3 to rotate, which is connected by transmission b, 8 to the machine 7. During the forward movement of the icebreaker, the blade 4 crashes into the ice and, rotating, promotes the icebreaker advancement and ice breaking.

FIG. 2 shows automatically aligning the suspension of the shafts 3 to the hull of the icebreaker 1, with which the bearings 5 are attached, for example, to the leads 10, which slide in the sliders 11; due to this, shafts 3 under the influence of weight or elastic pressure devices

(e.g., springs 12) may change position relative to the body. FIG. 3, the forced change of the position of the shafts 3 with respect to the icebreaker ice hull 1; To this end, the bearings 5 are matched with the icebreaker ice hull 1 by an adjusting mechanism, for example, a screw 13, which changes its position from the rotation of the nut 14, the hub 15 sliding in the stop. In FIG. 4 shows the same shafts 3 ,. but receiving rotation in bearings 5 not from the ship’s machinery, but from special machines 17 by means of gear 8.

The subject of the patent.

1. Icebreaker using an ice breaking drive mechanism, characterized in that the ice breaking mechanism consists of one or more icebreaker installed under an inclined bow of an icebreaker in bearings 5

shafts 3 (Fig. 1), equipped with screw blades 4 and rotatable from the ship machine 7 (Fig. 1), or from a special engine 17 (Fig. 4) mounted on the nose of the icebreaker. 2. Modification of the icebreaker described in paragraph 1, characterized in that the upper bearings 5 of the shafts 3 are made mounted by means of leads 10 (Fig. 2), slidable in the guides 11 and loaded with a spring 12 (Fig. 2), or by means of a screw 13 (FIG. 3) and the nuts 14 supported on the sleeve 15.

Fig1

FIG g