KR20070017233A - Rudder for ships - Google Patents

Abstract

A ship's key comprising a key wing and a propeller associated with the key and located on a driveable propeller axis of rotation, wherein the key wing has two nested key wings, with a front nose strip directed toward the propeller and one front nose strip to the port side. Or to the starboard side and the other front nose strips off-center relative to each other in a way to the starboard side or to the portside side, whereby both sidewall surfaces of the key blades converge to one rear end strip in a direction away from the propeller. Ship Key.

Key, propeller, key wing, front nose strip

Description

Ship Key {RUDDER FOR SHIPS}

1 shows a key device made of a key vane having a propeller and a key shaft associated with the key vane;

2A is a view of a key wing.

Figure 2B is a front view of the key blade of Figure 2A.

FIG. 3 is a view of the key wing of FIG. 2A having a sectioned section with an upper key wing and a lower key wing. FIG.

4 is a plan view of the profile section of the upper wing of the key;

Figure 5 is a plan view of the profile section of the lower wing of the key.

Figure 6 shows a keying device having a key shaft supported in a key trunk bearing and a fixing point of the key shaft with a key vane positioned above the propeller shaft center.

Figure 7 shows a vertical section by the line VII-VII of Figure 6;

8 is a configuration diagram of a bearing device between the key shaft and the key trunk.

<Description of Major Symbols in Drawing>

10: key wing 11: front nose strip

12: Profile Section 13: Largest Profile Thickness

14: front side 14a: surface portion

14b: surface portion 15a: surface portion

15b: Surface portion 16: Edge area

16 ': flat curve course 17: edge area

20: key wing 21: front nose strip

23: largest profile thickness 24: front face

26: Edge area 26 ': flat curve course

27: edge area 27a: edge area

30: rear end strip 100: key wing

100a: side wall surface 100b: side wall surface

110: hull 120: key trunk bearing

120b: free end 125: longitudinal bore in the center

135: pin 140: key shaft

140b: end 145: external

155: cylindrical recess 160: taper

200: center of propeller shaft

220: propeller 225: rotating shaft

The present invention relates to a ship rudder according to claim 1.

Keys such as a fully floating key or a balanced profile key with or without hinged horizontal keys fins can be found in various embodiments.

The object of the present invention is to prevent the phenomenon of corrosion or erosion on the keys due to very high cavitation (vacuum phenomenon behind the propeller, etc.), especially when used in high speed vessels with propellers that are subject to strong forces. The key is to reduce fuel consumption.

This object can be achieved by a key of the type having the properties indicated in claim 1.

The key according to the invention has a key wing having two nested key wings, with front nose strips directed towards the propeller with one front nose strip directed to the port or starboard and the other front nose strip directed to the starboard or They diverge from one another in a way that is off-centered in the port, so that both side face surfaces of the key blades converge into one rear end strip facing away from the propeller.

The advantage of the key constructed by the present invention with two profile sections turned sideways is that it avoids the formation of vapor bubbles on the one hand and on the other hand that cavitation is formed for a high speed vessel with a powerful propeller. It is to prevent erosion that occurs in the keys that appear to be caused by. The special construction of the key wing reduces fuel consumption. In addition, being able to significantly protect against cavitation also improves its efficiency. The weight can be significantly reduced.

The front nose strip of the upper key wing section is set to the port side, the front nose strip of the lower key wing section is set to the starboard side, or the front nose strip of the upper key wing section is set to the starboard side, and the front nose strip of the lower key wing section is ported Due to the fact that the front nose strips of the two key wings are off center with respect to each other so that they are set to the side, two profile sections turned upside down can be obtained respectively.

The arrangement according to the invention provides a key device connected with a key shaft in a key trunk bearing. In this structure too, the key wing has two nested portions, and the front nose strip facing the propeller is off centered in such a way that one front nose strip is on the port side and the other front nose strip is on the starboard side. Both sidewall surfaces of the wing converge on the rear end strip facing away from the propeller, and as a cantilever support the key trunk bearing is provided with a central longitudinal bore for receiving the key shaft for the key wing and connected with the key shaft. Wherein the bearing is positioned in an inner longitudinal bore of the key trunk bearing extending by its free end into a recess or taper or equivalent in the key wing portion to support the key shaft and within the end region. Key shaft bearing key trunk It is guided by the outside of and connected to the end of this part by the key blade, no bearing is provided between the key blade and the key trunk bearing, and the part connecting the key shaft to the key blade is located above the center of the propeller shaft, The inner bearing for the bearing of is located in the key trunk bearing in the end region of the key trunk bearing.

An advantage of the key constituted by the present invention is that the key shaft is supported by the bearing in the end region of the key trunk and the part connecting the key shaft to the key wing is located above the center of the propeller shaft. In order to replace the propeller shaft, it is not necessary to remove the key shaft from the key trunk bearing after the key blade is removed because the part connected to it is located above the center of the propeller shaft. In addition to this, the key blades of the keys may have a very thin profile.

Preferred embodiments of the invention are described in the dependent claims.

According to an advantageous form of the invention, the upper key wing of the key wing extends from the front nose strip to the rear end strip and follows the front face as well as the front face which is inclined to the largest profile thickness and then inclined with respect to the rear end strip. Having a profile section formed by the sides, the front portions formed by the central line running in the longitudinal direction of the key wing have different sizes, the larger surface portion is located on the port side and the smaller surface portion is located on the starboard side, Both surface portions formed by the centerline in the rear region are identically formed and the lower key wings of the key blades extend from the front nose strip to the rear end strip and follow the front face as well as the front face which is inclined to the largest profile thickness after Formed by direction Both front face portions having pile sections, formed by a central line running in the longitudinal direction of the key wing, have different sizes, the larger surface portion on the starboard side and the smaller surface portion on the port side, the centerline in the rear region of the profile section. Both surface portions formed by the same are so configured that the front nose strip of the upper key wing associated with the propeller is located on the port side of the center line and the front nose strip of the lower key wing is located on the starboard side of the center line.

Surface portions on both propeller sides of the profile section of the upper key wing have an edge region having a flat curved course and an arcuate curved course, and both surface portions of the profile section of the upper key wing section in a direction away from the propeller have an edge region extending in a tangential direction. And the surface portion of the edge region having an arcuate curved course is located on the starboard side.

The surface portions on both propeller sides of the profile section of the lower key wing have an edge area having a flat curved course and an arcuate curved course, and both surface portions of the profile section of the lower key wing part in a direction away from the propeller have an edge area extending in a tangential direction. And the surface portion of the edge region having an arcuate curved course is located on the port side.

The key wing has a pin.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the key structure shown in Fig. 1, reference numeral 110 denotes a hull, reference numeral 120 denotes a key trunk bearing, reference numeral 100 denotes a key vane, and reference numeral 140 denotes a key shaft. Propeller 220 is associated with key vane 100.

The key blade 100 according to FIGS. 2A, 2B, and 3 has two nested key portions 10, 20; The front nose strips 11, 21 of the key portion facing the propeller 220 are centered on one front nose strip 11 with port port BB and the other front nose strip 21 with starboard SB. In a way that is off-centered with respect to each other. Both sidewall surfaces 100a, 100b of the key vane 100 join the rear end strip 30 facing away from the propeller 22.

The upper key wing portion 10 and the lower key wing portion 20 of the key wing 100 is configured as follows.

The upper key wing 10 according to FIG. 4 is formed by a front face 14 extending from the front nose strip 11 to the rear end strip 30 and tapering off with respect to the largest profile thickness 13. Has a section 12. The rear face 15, tapering towards the rear end strip 30 and extending to the rear end strip 30, follows the front face 14. The front face 14 is divided into two surface portions 14a and 14b having different sizes by the central line M1 extending in the longitudinal direction of the key wing 100.

The larger surface portion 14a is located on the port side and the smaller surface portion 14b is on the starboard side. The rear face 15 is also divided into two surface portions 15a and 15b by the center line M1. Here, the size and shape of both surface portions 15a and 15b are the same.

The surface portions 14a, 14b on the propeller side of the profile section 12 of the upper key wing 10 are all provided with edge regions 16, 16a with flat curved courses 16 ', 16'a, whereby Surfaces 15a and 15b of the profile section 12 of the upper key wing 10 facing away from the propeller 220 have edge regions 17 and 17a that abut.

The surface portion 14b having an edge region 16a having an arcuate curved course 16'a is located on the starboard side.

According to FIG. 5 the lower key wing 20 has a profile section 22 that is turned over laterally. This profile section 22 extends from the front nose strip 21 towards the rear end strip 30, ie from the inclined surface towards the largest profile thickness 23. The surface 25 extending toward the rear end strip 30 and tapering towards the rear end strip 30 is next to the front face 24. The front face 24 is divided into two surface portions 24a and 24b having different sizes by the central line M2 extending in the longitudinal direction of the key wing 100. The larger surface portion 24b is located on the starboard side and the smaller surface portion 24a is on the port side. The rear face 25 is also divided into two surface portions 25a and 25b by the center line M2. Here, the size and shape of both surface portions 25a and 25b are the same.

The surface portions 24a, 24b on the propeller side of the profile section 22 of the lower key wing 20 are both edge regions 26, having a flat curved course 26 'and an arcuate curved course 26'a. By having 26a), the surfaces 25a, 25b of the profile section 22 of the lower key wing 20 facing away from the propeller 220 have edge regions 27, 27a that abut.

The surface portion 24b having an edge region 26a having an arcuate curved course 26'a is located on the starboard side.

By means of the structure and device of both key wings 10, 20 the front nose strip 11 of the upper key wing 10 associated with the propeller 220 is located on the port side with respect to the center line M1 and the lower key. The front nose strip 21 of the wing 20 is located on the starboard side with respect to the center line M2, so that both key wings 10 and 20 are the rear region of the key wing 100 of the rear end strip 30. Gathered in

2A, 2B, 3, 4, and 5, the keys are located at the arcuate curved courses 16'a, 26'a of the starboard side surface portion 14b and the port side surface portion 24b. The side wall portion of the wing faces the profile section 12 surface portion 14b on the starboard side and the profile section 22 surface portion 24b faces the port port on the front nose strips 11, 21 of both key wings 10, 20. Are positioned on the port side and starboard side, both key wings 10, 20 of the key wing 100 with profile sections 12, 22 are disposed relative to each other.

However, in the present invention, the side wall portion of the key wing is also located in the region of the arcuate curved course 16'a, 26'a of the starboard side surface portion 14b and the port side surface portion 24b, so that both key wing portions are provided. The surface portion 14b of the profile section 12 faces the port side and the surface portion 24b of the profile section 22 so that the front nose strips 11, 21 of (10, 20) are located on the starboard side and the port side. ) Includes a structure of a key in which both key wings 10, 20 of the key wing 100 with profile sections 12, 22 are arranged relative to each other in a manner directed to the starboard side.

In the key structure shown in Figs. 6-8, reference numeral 110 denotes a hull, reference numeral 120 denotes a key trunk bearing, reference numeral 100 denotes a key vane and reference numeral 140 denotes a key shaft. The pin 135 is hingedly coupled to the key wing 100. The key vane 100 has a cylindrical recess 155 for receiving the free end 120b of the key trunk bearing 120.

The key trunk bearing 120 is provided with a central internal longitudinal bore 125 for receiving the key shaft 140 of the key vane 100 as a cantilever support. Furthermore, the key trunk bearing 120 is made to extend to the key vane 100 connected with the key shaft end. The key trunk bearing 120 has a bearing 150 for supporting the key shaft 140 in its inner bore 125, which preferably comprises a lower end region of the key trunk bearing 120. 120b). The key shaft 140 is guided by the end 140b having the exterior 145 of the key trunk bearing 120. The free lower end of this extension 145 of the key shaft 140 is fixedly connected to the key blade 100 in the area indicated by 170, but the key blade from the key shaft 140 when the propeller shaft has to be replaced. A connection capable of releasing 100 is also provided here. The portion of the region 170 connecting the key shaft 140 with the key vane 100 is located above the propeller shaft center 200, so that only the key vanes 100 are required to disassemble the propeller shaft. Only the 140 must be removed and conversely removing the key shaft 140 from the key trunk bearing 120 means that the free lower end 120b of the key trunk bearing 120 as well as the free lower end 120b of the key trunk bearing 120 is not the propeller shaft. It is not necessary because it is located above the center. For the embodiment shown in FIGS. 1-3, there is only a single inner bearing 150 provided to support the key shaft 140 in the key trunk bearing 120; Additional bearings are no longer needed for the key vanes 100 on the outer wall of the key trunk bearing 120. To accommodate the free lower end 120b of the key trunk bearing 120, the key vane 100 is provided with a taper or recess at the portion indicated by reference numeral 160.

For the key, a key trunk bearing 120 is provided as a cantilever support with a central longitudinal bore 125 for receiving a key shaft 140 for the key vane 100. In addition, the key trunk bearing 120 is made to extend to the key vane 100. Furthermore, the key trunk bearing 120 is made to extend to the key vane 100 connected to the key shaft end and has a bearing in its inner bore 125 for supporting the key shaft 140 in the key trunk bearing 120. do. By the free end 120b, the key trunk bearing 120 extends in the recess or taper 160 in the key vane 100 such that the key shaft 140 in the end region 140b is the key trunk bearing. Guided to outer portion 145 of 120. The key shaft 140 and the key blade 100 are connected to the free end of the extended portion 145, and the portion connecting the key shaft 140 with the key blade 100 in the region 170 is the propeller shaft center portion. Is located above 200. The inner bearing 150 is preferably provided in the end region 120b of the key trunk bearing 120.

The invention is not limited to the embodiments described above and shown in the drawings. The difference between the bearing in the region of the key trunk bearing 120 and the device of the key shaft 140 is within the scope of the present invention as well as within the scope of another structure of the cylindrical taper 160 in the key vane 11. . The key device constructed by the present invention can be used for vessels or equivalent as well as flow platforms.

Claims (5)

In a ship key comprising a key vane 100 and a propeller 220 positioned on a propeller rotating shaft 225 associated with the key and operable, The key vane 100 has two nested key vanes 10, 20, one front nose strip 11 facing the port side BB or the starboard side SB and the other front nose strip 21. ) The front nose strips 11, 21 facing away from the center toward the propeller 220 in a manner off-centered toward the starboard (SB) side or the port (BB) side, so that both sides of the key blades 100 The wall surface is converging on the rear end strip (30) facing away from the propeller (220). The method of claim 1, The upper key wing 10 of the key wing 100, a) extending from the front nose strip 11 to the rear end strip 30 and As well as the front face 14, which is inclined relative to the largest profile thickness 13, a1) formed by a rear face 15 which comes after the front face 14 and is inclined with respect to the rear end strip 30, a2) both front surface portions 14a and 14b formed by the center line M1 extending in the longitudinal direction of the key wing 100 have the same size, a3) the larger surface portion 14a is located on the port side, a4) the smaller surface portion 14b is located on the starboard side, a5) in the rear region of the profile section 12 both surface portions 15a, 15b formed by the center line M1 are made of the same shape, Has a profile section 12, The lower key wing 20 of the key wing 100, b) as well as the front face 24 extending from the front nose strip 21 to the rear end strip 30 and inclined with respect to the largest profile thickness 23, b1) formed by a rear face 25 which comes after the front face 24 and is inclined with respect to the rear end strip 30, b2) both front surface portions 24a and 24b formed by the center line M2 extending in the longitudinal direction of the key wing 100 have the same size, b3) the larger surface portion 24b is located on the starboard side, b4) the smaller surface portion 24a is located on the port side, b5) In the rear region of the profile section 22 both surface portions 25a, 25b formed by the center line M2 are made of the same shape, Has a profile section 22, Thus, the front nose strip 11 of the upper key wing 10 associated with the propeller 220 is located on the port side of the center line M1, and the front nose strip 21 of the lower key wing 20 is the center line. A ship key, characterized in that located on the starboard side of (M2). The method of claim 1, The propeller side both surface portions 14a, 14b of the profile section 12 of the upper key wing 10 are edge regions 16, 16a having a flat curved course 16 'and an arcuate curved course 16'a. And both surface portions 15a, 15b of the profile section 12 of the upper key blade 10 facing away from the propeller 220 have edge regions 17, 17a running in a tangential direction. And a surface portion (14b) in the edge region (16a) having an arcuate curve course (16'a) is located on the starboard side. The method of claim 1, The propeller side both surface portions 24a, 24b of the profile section 22 of the lower key wing 20 have edge regions 26, 26a with flat curved course 26 'and arcuate curved course 26'a. And both surface portions 25a, 25b of the profile section 22 of the lower key wing 20 facing away from the propeller 220 have edge regions 27, 27a running in a tangential direction. And a surface portion (24b) in the edge region (26a) having an arcuate curved course (26'a) is located on the port side. The method of claim 1, Key wing 100 is a ship key, characterized in that it has a pin (135).

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