Abstract
To improve the hydrodynamic efficiency of a vessel, a rudder trunk for a vessel is proposed, comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft, an intermediate space is provided between the rudder stock tube and the receiving shaft, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock tube, wherein the at least one complementary holder piece is arranged on the receiving shaft, and wherein the at least one holder element and/or that at least one complementary holder piece projects into the intermediate space in the state of the rudder trunk being arranged in the receiving shaft.
To improve the hydrodynamic efficiency of a vessel, a rudder trunk for a vessel is proposed, comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft, an intermediate space is provided between the rudder stock tube and the receiving shaft, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock tube, wherein the at least one complementary holder piece is arranged on the receiving shaft, and wherein the at least one holder element and/or that at least one complementary holder piece projects into the intermediate space in the state of the rudder trunk being arranged in the receiving shaft.
Claims
1. Rudder trunk for a vessel, comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft between the rudder stock tube and the receiving shaft, an intermediate space is provided, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock tube, wherein the at least one complementary holder piece is arranged at the receiving shaft, and wherein the at least one holder element and/or wherein at least one complementary holder piece in the state of the rudder trunk being arranged in the receiving shaft, projects into the intermediate space.
2. Rudder trunk according to claim 1, wherein the at least one holder element and the at least one complementary holder piece can be arranged and/or are arranged on each other in form-fit and/or force-fit manner so that, in the state of the rudder trunk being arranged in the receiving shaft, in particular, in a state of the rudder trunk being arranged on the vessel comprising a rudder trunk and a receiving shaft, a movement of the rudder stock tube in the receiving shaft in an axial direction of the rudder stock tube is hindered or prevented.
3. Rudder trunk according to claim 1, wherein at least two, holder elements are provided, and/or wherein at least two complementary holder pieces are provided.
4. Rudder trunk according to claim 1, wherein the at least one holder element is formed as a single piece with the rudder stock tube and/or is connected to the rudder stock tube in a materially bonded and/or form-fit and/or force-fit manner, and/or wherein the at least one complementary holder piece is formed as a single piece with the receiving shaft and/or is connected to the receiving shaft in a materially bonded and/or form-fit and/or force-fit manner.
5. Rudder trunk according to claim 1, wherein the at least one holder element and/or the at least one complementary holder piece is a pin, a bolt, a projection a plate a bar or a profile body, and/or wherein the at least one holder element and/or the at least one complementary holder piece is a receptacle, a recess, or a thread, and/or wherein the at least one holder element and/or that at least one complementary holder piece is a clamping element.
6. Rudder trunk according to claim 3, whereinthe at least two holder elements are uniformly arranged across an outer circumference of the rudder stock tube, and/or wherein the at least two complementary holder pieces are uniformly arranged across an inner circumference of the receiving shaft.
7. Rudder trunk according to claim 6, wherein the at least two holder elements are arranged spaced in the circumferential direction across the outer circumference of the rudder stock tube, and/or wherein the at least two complementary holder pieces are spaced in the circumferential direction across the inner circumference of the receiving shaft in such a way that, when inserting the rudder stock tube into the receiving shaft the holder elements can be passed by the complementary holder pieces in the axial direction.
8. Rudder trunk according to claim 1, wherein the rudder stock tube is configuredto be rotatablein the receiving shaft if the intermediate space is not filled so that the at least one holder element and the at least one complementary holder piece can be aligned with each other by turning the rudder stock tube viewed in the axial direction.
9. Rudder trunk according to claim 8, wherein the rudder stock tube in the receiving shaft is configured to be moveable in the axial direction if the intermediate space is not filled, so that the at least one holder element can be arranged at the at least one complementary holder piece.
10. Rudder trunk according to claim 9, wherein the rudder stock tube in the state arranged in the receiving shaft can be further adjusted in the receiving shaft, if the intermediate space is not filled.
11. Rudder trunk according to claim 10, wherein adjusting means are provided, wherein the adjusting means are formed in such a way that, a position and/or alignment of the rudder stock tube in the receiving shaft can be adjusted with respect to a radial direction of the receiving shaft and/or an angle between a central axis of the rudder stock tube and a central axis of the receiving shaft.
12. (canceled)
13. Rudder trunk according to claim 1, the intermediate space is filled with a bonding agent.
14. Rudder trunk according to claim 13, wherein a sealing element is provided, wherein the sealing element is attached to an outer side of the rudder trunk so that when filling the intermediate space a leakage of the bonding agent to the outer side by the sealing element is preventable.
15. (canceled)
16. (canceled)
17. Rudder trunk according to claim 14, wherein the sealing element comprises at least one breakthrough, wherein the bonding agent can be introduced thorough the opening; into the intermediate space.
18. Rudder trunk according to claim 13, wherein the bonding agent can be liquified via heat input so that the rudder stock tube can be removed from the receiving shaft after liquefaction of the bonding agent.
19. Rudder trunk according to claim 1, wherein heating elements are arranged in the intermediate space.
20. Rudder trunk according to claim 1, the wherein on the outer side and/or on the inner side of the rudder stock tube and/or the receiving shaft recesses are arranged, wherein signal conductive means are preferably-arranged in the recesses.
21. (canceled)
22. Vessel with a rudder trunk, said rudder trunk comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft between the rudder stock tube and the receiving and the receiving shaft, an intermediate space is provided, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock lube, wherein he at least one complementary holder piece is arranged at the receiving shaft, and wherein the at least one holder element and/or wherein at least one complementary holder piece, in the slate of the rudder trunk being arranged in the receiving shaft, projects into the intermediate space.
23. (canceled)
24. (canceled)
25. (canceled)
26. A method for producing a rudder trunk comprising a receiving shaft and a rudder stock tube in a vessel,wherein a vessel is provided, wherein the receiving shaft is arranged in the vessel, wherein the rudder stock tube is inserted into the receiving shaft, wherein the at least one holder element is passed by the at least one complementary holder piece wherein the rudder stock tube is rotated so that the at least one holder element and the at least one complementary holder piece are aligned to each other in an axial direction of the rudder trunk and/or the receiving shaft, wherein the rudder stock tube is moved in the axial direction so that the at least one holder element and the at least one complementary holder piece are arranged being placed onto one another.
27. (canceled)
28. The method according to claim 26, wherein the rudder stock tube is aligned in the receiving shaft with adjusting devices, wherein alignment with a propeller axis and/or a stern tube of the vessel is carried out.
29. A method according to claim 26 wherein an intermediate space between the rudder stock tube and the receiving shaft is filled with a bonding agent and wherein the bonding agent is cured.
30. The method according to claim 26, wherein a sealing element is arranged on an outer side of the rudder trunk, so that, when filling the intermediate space, a leakage of the bonding agent to the outer side is prevented by the sealing element.
31. (canceled)
32. A method according to claim 29, wherein heating element are arranged within the intermediate space.
Description
BRIEF DESCRIPTION OF THE FIGURES
[0096] The present invention is explained in more detail on the basis of the figures. The figures show
[0097] FIG. 1 a hull with a rudder trunk comprising a rudder stock tube and a receiving shaft,
[0098] FIG. 2a a view along an axial direction on a rudder trunk with a holder for a rudder stock tube,
[0099] FIG. 2b a holder element and a complementary holder piece for a holder of a rudder stock tube,
[0100] FIG. 2c a rudder stock tube aligned within a receiving shaft,
[0101] FIG. 2d another rudder stock tube aligned within a receiving shaft,
[0102] FIG. 3 a rudder stock tube within a receiving shaft arranged in a rotated manner.
[0103] FIG. 4 a rudder stock tube arranged within a receiving shaft with a holder,
[0104] FIG. 5a another rudder stock tube (arranged in a receiving shaft) with a holder comprising a clamping element,
[0105] FIG. 5b a clamping element for a holder of a rudder stock tube,
[0106] FIG. 6 a rudder trunk with an increasing gap width between a rudder stock tube and a receiving shaft, and
[0107] FIG. 7 a perspective view of a rudder trunk with an increasing gap width between a rudder stock tube and a receiving shaft.
DETAILED DESCRIPTION OF THE FIGURES
[0108] FIG. 1 shows a rudder trunk 100 comprising a rudder stock tube 10 and a receiving shaft 11. The rudder trunk 100 is arranged in a hull 12 of a vessel 13. The hull 12 comprises an outer side 14. The rudder stock tube 10 is formed as a hollow tube 15 and inserted in a vertical direction 16 from the outer side 14 of the hull 12 from below into the receiving shaft 11. Between the outer wall 17 of the rudder stock tube 10 and the inner wall 18 of the receiving shaft 11, an intermediate space 19 is formed in a state of the rudder stock tube 10 being arranged in the receiving shaft 11. The rudder trunk 100 comprises a holder 20 for holding the rudder stock tube 10 within the receiving shaft 11. The holder 20 comprises holder elements 21, which are attached to the outer wall 17 of the rudder stock tube 10 in a materially bonded, form-fit or force-fit manner. Furthermore, the holder comprises 20 complementary holder pieces 22, which are arranged on the inner wall 18 of the receiving shaft 11 in a form-fit, materially bonded or force-fit manner. Each of the complementary holder pieces 22 projects in a radial direction 23 from the inner wall 18 of the receiving shaft 11 into the intermediate space 19. Likewise, each of the holder elements 21 projects from the outer wall 17 of the rudder stock tube 10 in the radial direction 23 into the intermediate space 19. Furthermore, in the intermediate space 19, there is a bonding agent 24, which is formed as cast plastic 25 and ensures a secure fixing of the rudder stock tube 10 in the receiving shaft 11. Additionally, the rudder stock tube 10 extends in an axial direction 26.
[0109] A first embodiment of the holder 20 is shown in FIGS. 2a and 2b.
[0110] FIG. 2a shows a view of the rudder stock tube 10 and the receiving shaft 11 opposite to the axial direction 26. FIG. 2b shows a view of the complementary holder piece 22 arranged on the inner wall 18 of the receiving shaft 11 and the holder element 21 arranged on the outer wall 17 of the rudder stock tube 10 along the section line A-A from FIG. 2a.
[0111] The rudder stock tube 10 comprises four holder elements 21a to 21d, which project from the outer wall 17 of the rudder stock tube 10 into the intermediate space 19. On the inner wall 18 of the receiving shaft 11, four complementary holder pieces 22a to 22d are arranged, which also project into the intermediate space 19. The holder elements 21a to 21d and the complementary holder pieces 22a to 22d are arranged evenly spaced across the outer circumference of the rudder stock tube 10 or across the inner circumference of the receiving shaft 11. As can be seen from FIG. 2b, the complementary holder pieces 22 or 22a to 22d are formed as profile body 29 and in particular as U-profile body 28. The U-profile body 28 comprise limbs 30 and a base section 31. The holder elements 21 or 21a to 21d are formed as bars 32 and are deposited on the base section 31 of the complementary holder pieces 22 or 22a to 22d formed as U-profile body 28. By resting the bars 32 on the base section 31 of the U-profile body 28, a movement of the rudder stock tube 10 in the axial direction 26 downwards is hindered or prevented. The limbs 30 of the U-profile body 28 also serve as a rotary brake 33. Thus, the rudder stock tube 10 in the arrangement shown in FIGS. 2a and 2b can be rotated only slightly in the receiving shaft 11 before the bars 32 of the holder elements 21a to 21d hit the limbs 30 of the U-profile body 28. In FIG. 2a, the intermediate space 19 between the rudder stock tube 10 and the receiving shaft 11 is not filled. Accordingly, the rudder stock tube 10 can be aligned or adjusted within the receiving shaft 11. For this purpose, the washers 34 shown in FIG. 2b can be provided. By arranging the washers 34 between the bar 32 and the base section 31 of the U-profile body 28, the rudder stock tube 10 can be adjusted in the receiving shaft 11. In FIGS. 2c and 2d, the possibilities of adjusting the rudder stock tube 10 in the receiving shaft 11 are shown. Thus, as in FIG. 2c, the rudder stock tube 10 can be moved laterally in the receiving shaft 11 in such a way that the central axis 35 of the rudder stock tube 10 is offset laterally with relation to the central axis 36 of the receiving shaft 11. In FIG. 2d, it is shown in a strongly exaggerated manner that, by arranging washers 34 between the holder elements 21 and the complementary holder pieces 22, an angle α between the central axis 35 of the rudder stock tube 10 and the central axis 36 of the receiving shaft 11 can be adjusted. After alignment, the intermediate space 19 can be filled with a bonding agent 24, in particular with a cast plastic 25. After the bonding agent 24 hardens, the rudder stock tube 10 is fixed within the receiving shaft 11.
[0112] For the production of the rudder trunk according to FIGS. 1 to 2d, the rudder stock tube is inserted from the outer side 14 of the hull 12 in the vertical direction 16 (FIG. 1) into the receiving shaft 11. For this purpose, as shown in FIG. 3, the rudder stock tube 10 is rotated opposite the receiving shaft 11 in such a way that the holder elements 21a to 21d and the complementary holder pieces 22a to 22d are not aligned with each other. In this position, the rudder stock tube 10 can be introduced into the receiving shaft 11 in the vertical direction 16 in such a way that the holder elements 21a to 21d are guided past the complementary holder pieces 22a to 22d until the holder elements 21a to 21d are arranged above the complementary holder pieces 22a to 22d. Subsequently, the holder elements 21a to 21d can be aligned by rotating the rudder stock tube 10 around the central axis 35 of the rudder stock tube 10 with the holder elements 22a to 22d, as shown in the view in FIG. 2a. Subsequently, the rudder stock tube 10 can be moved downwards in the axial direction 26 or against the vertical direction 16, so that the holder elements 21a to 21d, in particularly, those formed as bars 32, are arranged at the complementary holder pieces 22a to 22d, in particular, those formed as U-profile bodies 28. By arranging the holder elements 21a to 21d at the complementary holder pieces 22a to 22d, a holder 20 is formed, which prevents or hinders movement of the rudder stock tube in the axial direction 26 within the receiving shaft 11 (FIG. 1). Subsequently, the rudder stock tube 10 can be aligned, in particular, on a propeller axis or on a stern tube. To fix the rudder stock tube 10 in the receiving shaft, the intermediate space 19 is then filled with a bonding agent 24.
[0113] A further embodiment of the holder 20 is shown in FIG. 4. With to the embodiment of FIGS. 1 and 2a, the embodiment according to FIG. 4 differs only in that the holder elements 21 or 21a to 21d formed as bars 32, which project in the radial direction 23 into the intermediate space 19 between the rudder stock tube 10 and the receiving shaft 11, are additionally inclined upwards against the axial direction 26. This leads to the fact that, by moving the rudder stock tube 10 in the receiving shaft 11 in the radial direction 23, the holder elements 21 or 21a to 21d in the formed as U-profile body 28 complementary holder pieces 22 or 22a to 22d due to the inclination receive an additional component of the movement in or against the axial direction 26. As a result, the central axis 35 of the rudder stock tube 10 is aligned with the centre axis 36 of the receiving shaft 11.
[0114] A further embodiment of the holder 20 is shown in FIGS. 5a and 5b. FIGS. 5a and 5b show a possible embodiment of the holder 20 using a clamping element. The holder element 21 in the rudder stock tube 10 is formed as a recess 37, in particular, as a groove 38. The recess 37 is circumferentially formed around the rudder stock tube 10. The complementary holder piece 22 is formed as a clamping element in the form of a clamping ring 39 and arranged via a second groove 40 circumferential around the inner wall 18 of the receiving shaft 11 at the receiving shaft 11 in a positive-locking manner. The clamping ring 39 is not fully closed, but comprises, in accordance with FIG. 5b, a gap 41 at one point, which allows that the clamping ring 39 can be widened. When inserting the rudder stock tube 10 into the receiving shaft 11, the clamping ring 39 is then first to be widened so that the rudder stock tube 10 can be guided through the clamping ring 39. As soon as the recess 37 or the groove 38 of the rudder stock tube 10 is arranged at the level of the clamping ring 39, the clamping ring 39 is relaxed, so that this, as shown in FIG. 5a, intervenes in the recess 37 or the groove 38 of the rudder stock tube 10. This prevents movement of the rudder stock tube 10 in the axial direction 26 of the rudder stock tube 10 in the receiving shaft 11. Instead of the clamping ring 39 and the groove 38, other clamping elements and suitably formed holder elements 21 can also be used as complementary holder piece 22, which cause a positive-locking and/or non-positive-locking clamp between rudder stock tube 10 and receiving shaft 11.
[0115] Furthermore, in FIG. 1, a sealing element 42 is shown, which is arranged on the outer side 14 of the hull 12. The sealing element 42 is designed as a sealing sleeve 43 and comprises a breakthrough 44 through which the bonding agent 24, in particular the cast plastic 25, can be introduced into the intermediate space 19 between the rudder stock tube 10 and the receiving shaft 11. After the bonding agent hardens 24, the sealing sleeve 43 can either remain on the outer side 14 of the hull 12. Alternatively, it is possible that the sealing sleeve 43 is removed from the outer side 14 of the hull 12.
[0116] FIGS. 6 and 7 show another rudder trunk 100. The rudder trunk 100 comprises a receiving shaft 11, which is arranged on a hull 12 of a vessel 13. A rudder stock tube 10 is arranged in the receiving shaft 11 in such a way that an intermediate space 19 is formed between the outer wall 17 of the rudder stock tube 10 and the inner wall 18 of the receiving shaft 11. The rudder stock tube 10 is arranged across a clamping height 45 within the receiving shaft 11. In a lower region 46 of the clamping height 45, the intermediate space 19 between the inner wall 18 of the receiving shaft 11 and the outer wall 17 of the rudder stock tube 10 has a constant gap width 47. In the axial direction 26 upwards towards the hull 12 or viewed in the vertical direction 16 of the rudder stock tube 10, above the lower region 46 of the clamping height 45, a middle region 48 is provided, in which the gap width 47 between the outer wall 17 of the rudder trunk 10 of the inner wall 18 of the receiving shaft 11 increases in the direction of the hull 12. For the increase in the gap width 47, the rudder stock tube 10 has a wall thickness 49 that decreases upwardly. Holder elements 21 are arranged on the outer side of the rudder stock tube 10 in an upper region 50 of the clamping height 45. Corresponding complementary holder pieces 22 are arranged on the inner wall 18 of the receiving shaft 11. Via the holder elements 21 or complementary holder pieces 22, a decrease in the gap width 47 in the upper region 50 of the clamping height 45 results. Instead of the holder elements 21 and/or the complementary holder pieces 22, a circumferential flange can also be provided. A bonding agent 24, such as cast plastic 25 for example, is arranged within the upper region 50 in the region of the holder elements 21 and complementary holder pieces 22. Similarly, a bonding agent 24 is provided within the lower region 46 of the gap width 47. The middle region 48 of the clamping height 45 is between the upper region 50 and the lower region 46 of the clamping height 45, wherein the intermediate space 19 in the middle region 48 is not filled with a bonding agent 24.
[0117] In the perspective view of FIG. 7, the increasing gap width between the outer wall 17 of the rudder stock tube 10 and the inner wall 18 of the receiving shaft 11 can be clearly seen. In addition, in the lower region 46 constant gap width 47 and in the upper region 50 in the region of the holder elements 21 or complementary holder pieces 22, the bonding agent 24 formed as cast plastic 25 are shown.
TABLE-US-00001 List of reference numbers 100 rudder trunk 10 rudder stock tube 11 receiving shaft 12 hull 13 vessel 14 outer side 15 hollow tube 16 vertical direction 17 outer wall 18 inner wall 19 intermediate space 20 holder 21 holder element 21a. holder element 21b. holder element 21c. holder element 21d. holder element 22 complementary holder piece 22a complementary holder piece 22b complementary holder piece 22c complementary holder piece 22d complementary holder piece 23 radial direction 24 bonding agent 25 cast plastic 26 axial direction 27 upper region 28 U-profile body 29 profile body 30 limb 31 base section 32 bar 33 rotary brake 34 washer 35 central axis 36 central axis 37 recess 38 groove 39 clamping ring 40 second groove 41 gap 42 sealing element 43 sealing collar 44 breakthrough 45 clamping height 46 lower region 47 gap width 48 middle region 49 wall thickness 50 upper region
