SU1114329A3 - Device for unloading rudder head shaft - Google Patents

Abstract

The invention relates to an arrangement for relieving the load on the axis rudder in ships with two or more rudders. The invention consists in the fact that pivots (4, 4a) are attached to the plate (3), to which pivots (4, 4a) the levers (5, 5a) are rotatably fastened, that the levers (5, 5a) have on the inside slideways (5b) and flat planes (50) on which the wheels (11, 11a) are mounted, that journal bearings (6, 6a) are attached to the bottom part of the levers (5, 5a), which journal bearings (6, 6a) hold the damping cylinder (7) and its piston (7'), and that the damping cylinder (7) is connected by the pipeline (A) via the non-reversible valve (12) to the safety valve (13), the oil tank and the pipeline (B) with the non-reversible valve (12) for the pump for re-filling, and furthermore the levers (5, 5a) bear with their bottom ends against limiters (20) in the neutral position. <IMAGE>

Description

f11 The invention relates to shipbuilding, in particular to devices for unloading rudders of ships rudders. A device for unloading rudders of rudders with two or more rudders is known, comprising a tiller with a shackle, two wheels and a hub freely mounted on the rudder, a plate rigidly attached to the stem, a guide beam of a semi-ovoid shape, conjugated with one of wheels and pivotally connected at its end with the hydraulic shock absorber rod communicated with the drain pipe and filled through the check and relief valves ll. However, such a device, due to the presence of a single guide beam, has an insufficient reliability and a delay in repeated switching on the invention — an increase in the reliability of the device. This goal is achieved by the fact that a device for unloading rudders of rudders of ships with two or more rudders, containing a tiller with a shackle, two wheels and a hub freely mounted on the rudder, a plate rigidly attached to the obtuse, guiding beam of a semi-oval shape, conjugated with One of the wheels mentioned and pivotally connected at one end to the hydraulic shock absorber rod associated with the drain and filling pipes through check and safety valves is equipped with two axles and an additional guide rail. It has a semi-oval shape mated to another wheel, with both beams at one end loosely mounted on said axles fixed on the plate, and the other end of the additional beam is pivotally connected to the hydraulic shock absorber cylinder. Fig, 1 shows the overall appearance of the device; in fig. 2 is the same, side view, in FIG. 3 - device when working with overload. The device comprises a taxing device 1 with a shackle 2, on which two wheels 3 and 4 and a hub 5, freely mounted on a bullet 6, are mounted, a plate 9 7 rigidly attached to the hub 5, guide beams 8 and 9 of semi-oval shape, coupled with corresponding wheels 3 and 4 and pivotally connected respectively with one end to the rod and the cylinder of hydraulic shock-absorber 10, which is connected to the drain and filling pipe 11 through the return 12 and safety valves 13. In addition, on the plate 7, two axes 14 and 15 are fixed, on which the above-mentioned beams are movably mounted. The device operates as follows. A rudder machine (not shown) transmits a predetermined movement to the steering wheel 1 and, respectively, to one of the wheels 3, which presses the beam 8 and through it the plate 7 with the hub 5 turns the puller 6 (FIG. 3). During normal operation (without overloading), the piston of the hydraulic cylinder 10 does not move. When an unacceptable overload occurs, the wheel 3 turns the beam 8 around the axis 14 and pushes the hydraulic cylinder 10 through it. The safety valve 13 is activated. By turning the beam 8, the wheel 3 hits the arcuate surface and makes further movement without turning the beam 8, but Therefore, the driver 1 with its further movement does not transmit the rotational movement to the bullet 6, i.e. kinematic coupling is separated. Rulel 1 is a baller 6. At the same time, wheel 4 leaves the mating with beam 9, which, rotating around axis 15, removes hydraulic cylinder 10 and returns the entire hydraulic system to its original position. When moving in the opposite direction, as in the case of normal operation, and in the event of an overload, the device operates in the same way. When the cause of the overloads is eliminated, the proposed device returns to its original position under the action of the hydraulic system pressure.

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Claims (1)

(.57) A DEVICE FOR UNLOADING SHIPBOARDS OF VESSELS OF VESSELS with two or more rudders, comprising a tiller with a bow, two wheels and a hub freely mounted on the baller, a plate rigidly attached to the hub, a guide beam of semi-oval shape, conjugated with one of the said wheels and pivotally connected at one end to the hydraulic shock absorber rod connected to the merge and fill pipelines through check and safety valves, characterized in that, in order to increase reliability, it is equipped with two axles and an additional pressure beam-governing semioval shape conjugate with the other wheel, with the two beams one ends of said freely mounted on axes attached to the plate and the other end of the additional g | hydrochloric beam is pivotally connected with the cylinders "rum hydraulic shock.