SU1558771A1 - Sail equipment - Google Patents

Abstract

This invention relates to shipbuilding, in particular, to wind propulsion designs of seagoing ships. The goal is to increase the aerodynamic characteristics of the sailing armament and the reliability of its operation by ensuring the reversibility of the wing when changing the tack. The device consists of a rigid wing 1, an asymmetrical concave profile with flat connecting elements 2 composed of two identical sections having a common drive 3, ensuring the possibility of sequential rotation of the sections around the horizontal axis X ₁ (change of tack and folding) and the base with the rotation drive of devices around the vertical axis Z (turn to the wind). The rotation drive of the sections relative to the axis X _{1 is} made in the form of a hydraulic joint 4, having the possibility of rotating the shaft 5 relative to the body 6 by 180 °. The hydraulic joint rotates freely in the female element of the upper part of the streamlined column 8, which connects the rotary device of the wing sections with the rotary base 9 and the associated electro-hydraulic rotational drive 10 around the vertical axis Z, which are mounted on the stationary base 11. On the rotary base a three-position locking device 12 with forced release, interacting with guide elements 13 on the flat connecting elements of the wing when one or both sections are lowered into the bottom n position One section is fixed to the hydraulic joint by loops 14 for the shaft splines, and the other by loops 15 for the body splines. 4 il.

Description

The invention relates to the field of shipbuilding, in particular, to the design of wind propulsion vessels of sea vessels.

The aim of the invention is to increase the aerodynamic characteristics of the sailing armament and the reliability of its operation by ensuring the reversibility of the wing when changing the tack.

Fig, 1 shows the sailing armament, a general view, in Fig. 2 is a diagram of the corrugation and folding of sailing armament; in fig. 3 shows the drive along the X axis; in FIG. 4 - Fixing device.i

A sail rig consists of a rigid wing 3 (one-piece or full-out turned), for example, an asymmetrical concave profile with flat connecting elements 2, composed of two identical sections, having a common drive 3, which allows the sections to rotate sequentially around the horizontal axis X (change of tack of folding) and base with the drive of rotation of the whole device around the vertical axis Z (turn to the wind). The rotational drive of the sections relative to the X axis is made, for example, in the form of a hydraulic joint 4, which can rotate the shaft 5 relative to the housing 6 not 180, which ensures the successive rotation of the wing relative to the axis X. when changing the tack or folding it into a streamlined symmetrical profile when exiting wind

The hydraulic joint freely rotates in the female element 7 of the upper part of the streamlined column 8, which connects the rotary device of the wing sections with the rotary base 9 and associated with it, for example, by an electro-hydraulic rotary drive 10 around the vertical axis Z, which are mounted on the stationary base 11. On the rotary base mounted a three-position locking device 12 with a forced release, which interacts with the guide elements 13 on the flat wing connecting elements when lowering one or both sections in the lower position. The fastening of one section to the hydraulic joint is carried out by loops 14 for the shaft splines, and the other - by loops 16 for the body splines.

The device works as follows.

When changing the tack, the upper section turns to the wind, descends to the lower position and fixes, while the opposite is released from fixation and rises. That is, the wing flip occurs as if with the interception of individual sections by the locking device when they are rotated relative to each other by 180. At the same time, the entire device rotates around the vertical axis. When removing the wing from the wind, both sections

515587

They are locked in the down position and the whole device is put into controlled vane mode or stopped.

For guaranteed recoil, the locking device is equipped with a hydraulic pusher 16 acting on the grippers 17 and guiding elements 13.

The three position locking device is remotely controlled from the main sail control panel. The control of the fixing device is based on the known control schemes of hydraulic systems with the use of standard devices:, hydro, arrangement} of fixing the piston in three positions and three-way electrohydraulic. distribution valve a converting control signal: hydraulic stations; limit switches, etc.

Essential in this case is that the fixation of one or two sections of the wing is carried out in the middle position of the turret (Figure 4), and the return of one of the sections when the piston moves along the cylinder to position I or II depends on the control signal, when this ensures locking in the lower position of the other section.

According to its aerodynamic characteristics, the sailing armament — the lift coefficient 2.0-2.1 and the sail ratio STmNo 2.4-2.5; significantly exceeds the options of the existing and operational sail armament of the Japanese KKK Company (сЈ,) "1, 5J of the trademark) 3) of the difference from them allows smooth ribbing of sailing arms by turning the upper lecture down into the wind and shielding the lower section until folding, as well as a more complete wind exit due to the possibility of folding B twice the height of the heated side and lowering the center of the sail.

The strength of sailing equipment is determined by the expression

year

1G

2nd T

 S-v.

at ;

(ABOUT

where s

- sailing armament area {

p is the air density; J Ve is the velocity of the pennant wind; - coefficient of sails, and the power of sailing armament

7

nineteen

T-V5 v, -. v,

(2)

0

five

0

five

0

five

0

five

0

five

where UZ is the speed of the vessel under sail.

That is, from expressions (1) and (2) it can be seen that the pulling force and power of the sailing armament is proportional to its aerodynamic characteristic - the pulling coefficient (Cr) or area (S), therefore, the proposed -parusnoy armament will have tug or power is greater than the similar sailing equipment company LCD, ceteris paribus

   547,

SGMDKS LAK)

which, with equal t or power, makes it possible to have a sailing area of 68% of the sail area of a Japanese ship.

For example, for a Usuki Pioneer Japanese ship equipped with rigid folding sails with a total area of 640 mg, the area of the proposed sailing armament would be 640x0.68 435 m2, i.e. could be reduced by 205 m, would have less weight and building cost.

Claims (1)

Invention Formula Sailing arms containing a rack on which a rigid asymmetrical wing is mounted, having the same upper and lower sections with the possibility of their successive rotation. Around the horizontal axis, and having a rotary base, a drive for turning the entire sailing arms around the vertical axis of the rack, which differs from by the fact that, in order to increase the aerodynamic characteristics of the sailing armament and its reliability — work by ensuring the reversibility of the wing when changing the tack, the drive of the sections of the rigid The wing about the horizontal axis is made in the form of a hydraulic joint with a shaft, which has the possibility of free rotation in the upper part of the pillar that surrounds it, which is made up of a connecting hydraulic joint with a rotatable base of the rotation drive around the vertical axis, and connected by the ends of the shaft c. loops with which one is supplied wing sections, and the body with loops with which another section of this wing is provided, while said rotary base is equipped with a three-position locking device with the possibility of forcibly disengaging it and interacting with the guiding elements with which said sections are turned. and lowering. fie. 2 15 .four $ 10 $ birth $ - Fixation - $ Release Fi.CH Cowl Casing TO