Vertical telescopic rotary air duct mounted on ship

Abstract

The vertical telescopic rotary air duct comprises a base, a supporting shaft, a lower-layer air duct body and an upper-layer air duct body, the base is arranged above an exposed deck, the supporting shaft is fixed above the base, the lower-layer air duct body is arranged outside the supporting shaft in a sleeving mode and located above the base, and the upper-layer air duct body is arranged outside the lower-layer air duct body in a sleeving mode; the supporting shaft is provided with a first driving device for driving the lower-layer air duct to rotate, and a second driving device for driving the upper-layer air duct to move up and down relative to the lower-layer air duct is arranged in the upper-layer air duct; and a limiting device for limiting the upper-layer air duct to rotate relative to the lower-layer air duct is arranged between the upper-layer air duct and the lower-layer air duct. According to the vertical telescopic rotary air duct, the height of the air duct is adjusted through the relative telescopic displacement between the upper-layer sleeve and the lower-layer sleeve which are arranged above an exposed deck, and the occupied space of a ship body below the deck cannot be increased while the trafficability of a ship is improved.

Description

Technical Field

[0001] The invention relates to the field of ships, and in particular to a vertically telescopic rotating wind cylinder installed on a ship. Background Art

[0002] In order to achieve the goal of energy conservation and emission reduction, some ships have applied rotating wind tubes. The rotating wind tubes use the Magnus effect and can use the lateral wind to provide auxiliary propulsion for the ship, thereby achieving the goal of energy conservation.

[0003] Generally, the fixed-height rotating wind tube has poor ship passability due to its relatively fixed height position, and the rotating wind tube has a large wind-exposed area when not in use, which affects the stability of the ship. Although the tiltable wind tube can be tilted to improve passability and reduce the wind-exposed area, it occupies more deck space after tilting.

[0004] At present, a better way is to use a lifting rotary wind tube and adjust the height to change the wind receiving area. Prior art such as the patent document with publication number CN115027652A discloses a sail propulsion device and a ship based on a rotary sail, which uses a lifting rod to extend or retract the sail relative to the inside of the ship body. Prior art such as the patent document with publication number CN117799760A also discloses a gear lifting sail system, which discloses that a lifting rod recovery cabin is set below the sail base, and the sail lifting rod is extended out of the lifting rod recovery cabin when in use, and is retracted into the lifting rod recovery cabin when not in use. Whether it is retracted into the hull or into the lifting rod recovery cabin, it will occupy more space under the hull deck. Summary of the invention

[0005] In order to realize the raising and lowering of the sail, the present invention provides a vertically telescopic rotating wind tube installed on the ship, which can achieve the purpose of raising and lowering through the relative extension and retraction of the wind tubes, and can also reduce the occupation of the space under the deck.

[0006] The technical objectives of the present invention are achieved through the following technical solutions:

[0007] A vertically telescopic rotating wind tube installed on a ship comprises a base, a support shaft, a lower wind tube and an upper wind tube, wherein the base is arranged above an open deck, the support shaft is fixed above the base, the lower wind tube is sleeved outside the support shaft and located above the base, and the upper wind tube is sleeved outside the lower wind tube; the support shaft is provided with a first driving device for driving the lower wind tube to rotate, and a second driving device for driving the upper wind tube to move up and down relative to the lower wind tube is provided in the upper wind tube; a limit device for limiting the rotation of the upper wind tube relative to the lower wind tube is provided between the upper wind tube and the lower wind tube.

[0008] Furthermore, a first bearing is arranged on the outer side of the support shaft near the bottom of the support shaft, and the first bearing support is arranged between the inner wall of the lower wind tube and the outer wall of the support shaft.

[0009] Furthermore, a supporting cone surface is arranged at the outer edge of the upper end of the support shaft, a supporting block is arranged on the inner wall of the lower air duct corresponding to the supporting cone surface, a second bearing is arranged between the supporting block and the supporting cone surface, and the second bearing support is arranged between the supporting cone surface and the supporting block.

[0010] Furthermore, the first bearing is a thrust tapered roller bearing, and the second bearing is a tapered roller bearing.

[0011] Furthermore, the first driving device includes a first driving motor, a first driving gear, and a first inner gear ring. The driving motor is transmission-connected to the first driving gear. The first inner gear ring is fixed to the inner wall of the lower wind tube, and the first driving gear is meshed with the first inner gear ring.

[0012] Furthermore, the second driving device includes a rack, a second driving motor, and a second driving gear. The rack is vertically installed on the inner wall of the upper wind duct, the second driving motor is installed on the upper end of the lower wind duct, the second driving motor is transmission-connected to the second driving gear, and the second driving gear is meshed with the rack.

[0013] Furthermore, the limiting device is arranged on the outer side of the lower air duct close to the upper end of the lower air duct, and the limiting device cooperates to limit the side surface of the rack.

[0014] Furthermore, a blocking cover is arranged at the upper end of the upper air duct, and a supporting seat for limiting the downward movement of the upper air duct is arranged on the side surface of the lower end of the lower air duct.

[0015] Furthermore, a distance detection device is provided at the upper end of the lower wind duct for detecting the distance between the upper end of the upper wind duct and the upper end of the lower wind duct; when the distance detection device detects that the distance between the upper end of the upper wind duct and the upper end of the lower wind duct reaches a set height, the second driving device locks the distance between the upper end of the upper wind duct and the upper end of the lower wind duct.

[0016] Furthermore, the support shaft is a hollow structure, and several layers of working platforms are arranged inside the support shaft, and the upper and lower working platforms are connected by a straight ladder; the base is also provided with ventilation holes for ventilation of the lower layer of wind ducts and the inside of the support shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The vertical telescopic rotary wind tube of the present invention is arranged above the open deck, and the relative telescopic displacement between the upper sleeve and the lower sleeve realizes the adjustment of the wind tube height, thereby improving the ship's passability without increasing the occupation of the hull space below the deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the upper wind duct being elevated relative to the lower wind duct in the present invention.

[0020] Figure 2 It is a schematic diagram of the contraction of the upper wind duct relative to the lower wind duct in the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the upper wind duct in one embodiment of the present invention.

[0022] Figure 4 Schematic diagram of the arrangement of the first inner gear ring in an embodiment of the present invention.

[0023] Figure 5 Schematic diagram of rack arrangement in one embodiment of the present invention.

[0024] In the figure:

[0025] 1. Base; 2. Support shaft; 3. Lower air duct; 4. Upper air duct; 5. Open deck; 6. First bearing; 7. Second bearing; 8. Support cone; 9. Support block; 10. Blocking cover; 11. Support seat; 12. Annular support ring; 13. Spring; 14. First drive motor; 15. First drive gear; 16. First inner gear ring; 17. Annular skeleton; 18. Longitudinal connecting skeleton; 19. Working platform; 20. Rack; 21. Second drive motor; 22. Second drive gear; 23. Guide gear; 24. Straight ladder; 25. Ventilation port; 26. Inspection door; 27. Distance detection device. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0027] A vertically telescopic rotating wind tube installed on a ship, such as Figure 1 and Figure 2 As shown, it includes a base 1, a support shaft 2, a lower wind duct 3, and an upper wind duct 4. The base 1 is arranged above the open deck 5, the support shaft 2 is fixed above the base 1, the lower wind duct 3 is sleeved on the outside of the support shaft 2 and is located above the base 1, and the upper wind duct 4 is sleeved on the outside of the lower wind duct 3; the support shaft 2 is provided with a first driving device for driving the lower wind duct 3 to rotate, and the upper wind duct 4 is provided with a second driving device for driving the upper wind duct 4 to move upward or downward relative to the lower wind duct 3; a limit device is provided between the upper wind duct 4 and the lower wind duct 3 to limit the rotation of the upper wind duct 4 relative to the lower wind duct 3.

[0028] Preferably, a first bearing 6 is provided on the outer side of the support shaft 2 near the bottom of the support shaft 2 , and the first bearing 6 is supported and arranged between the inner wall of the lower air duct 3 and the outer wall of the support shaft 2 .

[0029] Preferably, a supporting cone 8 is provided on the outer edge of the upper end of the support shaft 2, and a supporting block 9 is provided on the inner wall of the lower air duct 3 corresponding to the supporting cone 8, and a second bearing 7 is provided between the supporting block 9 and the supporting cone 8, and the second bearing 7 is supported and arranged between the supporting cone 8 and the supporting block 9.

[0030] The first bearing 6 and the second bearing 7 are provided to increase the stability of the lower air duct 3 and facilitate the rotation of the lower air duct 3 relative to the support shaft 2. In this embodiment, the first bearing 6 is a thrust tapered roller bearing, and the second bearing 7 is a tapered roller bearing.

[0031] The upper wind duct 4 and the lower wind duct 3 are both cylindrical hollow cylinder structures. It is preferred to set a blocking cover 10 at the upper end of the upper wind duct 4. The setting of the blocking cover 10 can prevent rainwater and the like from entering the wind duct. When the upper wind duct 4 descends relative to the lower wind duct 3, the blocking cover 10 can also play a final limiting protection role to prevent the upper wind duct 4 from falling relative to the lower wind duct 3. In addition, a support seat 11 is provided on the side surface of the lower end of the lower wind duct 3 to limit the downward movement of the upper wind duct 4. When the upper wind duct 4 descends to the lowest position relative to the lower wind duct 3, the lower end of the upper wind duct 4 can be supported by the support seat 11, which can also prevent the upper wind duct 4 from falling relative to the lower wind duct 3.

[0032] In one embodiment, Figure 3 As shown, the upper air duct 4 is a hollow structure, with a plurality of annular frames 17 arranged inside, and longitudinal connecting frames 18 connected between the annular frames 17, and stainless steel outer walls are coated on the outer sides of the annular frames 17 and the longitudinal connecting frames 18, and the thickness of the stainless steel outer walls is a thinner stainless steel plate, such as a stainless steel plate with a thickness of less than 1 mm; a circular frame is installed on the annular frame at the upper end, and stainless steel is coated on the outer side of the circular frame to form a blocking cover 10. The lower air duct 3 is similar to the upper air duct 4, and can refer to the upper air duct.

[0033] Preferably, in one embodiment, Figure 3 As shown, a buffer device is also provided at the lower end of the upper air duct 4 corresponding to the support seat 11, and the buffer device includes an annular support ring 12, and a plurality of elastic members arranged between the annular support ring 12 and the lower end of the upper air duct 4, and the elastic member is such as a spring 13. When the upper air duct 4 falls on the support seat 11, the support seat 11 supports the annular support ring 12, and the compression spring 13 plays a buffering role.

[0034] Preferably, in one embodiment, a buffer device is provided at the lower end of the support seat corresponding to the upper wind tube, the support seat is in a circular ring shape, and a rubber ring is provided along the ring-shaped support seat as the buffer device.

[0035] More specifically, Figure 4As shown, the first driving device includes a first driving motor 14, a first driving gear 15, and a first inner gear ring 16. The first driving motor 14 is connected to the first driving gear 15 in a transmission manner. The first inner gear ring 16 is fixed to the inner wall of the lower air duct 3, and the first driving gear 15 is meshed with the first inner gear ring 16. It should be noted that in this embodiment, the first driving gear 15 can be a gear set or a single gear. In this embodiment, the first driving motor 14 is installed in the working platform 19 of the support shaft 1, and the output shaft of the first driving motor 14 extends to the upper end of the support shaft 1 and is connected to the first driving gear 15 in a transmission manner. The first inner gear ring 16 is fixed to the side of the support block 9. Under the action of the first driving motor 14, the first driving gear 15 drives the lower air duct 3 having the first inner gear ring 16 to rotate relative to the support shaft 2. In one embodiment, the support block 9 is an annular structure, and the support block 9 is provided with a conical surface corresponding to the support conical surface 8.

[0036] Specifically, the second driving device includes a rack 20, a second driving motor 21, and a second driving gear 22. The rack 20 is vertically installed on the inner wall of the upper wind tube 4, the second driving motor 21 is installed at the upper end of the lower wind tube 3, the second driving motor 21 is transmission connected to the second driving gear 22, and the second driving gear 22 is meshed with the rack 20.

[0037] The rack can be provided with one or more teeth. Figure 3 Taking the upper air duct in the example, a plurality of longitudinal connecting frames are arranged in the upper air duct, and a plurality of racks are arranged along the longitudinal connecting frames.

[0038] In one embodiment, four racks are arranged on the inner wall of the upper air cylinder, and each rack is meshed with the second driving gear.

[0039] In another embodiment, if Figure 5 As shown, four racks 20 are arranged on the inner wall of the upper wind duct 4, of which two racks at relative positions are meshed with the second driving gear 22, and a guide gear 23 is arranged on the upper end of the lower wind duct for the other two racks at relative positions, the guide gear 23 is meshed with the racks, and the movement of the upper wind duct relative to the lower wind duct is achieved by the second driving gear 22, and the guide gear 23 increases the stability of the movement of the upper wind duct 4.

[0040] The function of the limit device is to limit the rotation of the upper wind tube relative to the lower wind tube, so as to ensure that the rotation of the lower wind tube can drive the upper wind tube to rotate.

[0041] In one embodiment, the limiting device can be a guide strip and a guide groove that cooperate with each other, one of which is located on the inner wall of the upper air duct and the other is located on the outer wall of the lower air duct, and the guide strip slides up and down along the guide groove.

[0042] In another embodiment, the limiting device includes a limiting block, which is arranged on the outside of the lower wind tube, and the limiting block abuts against the rack from the side, so that the upper wind tube is driven to rotate when the lower wind tube rotates. The limiting block can also be a guide roller rolling along the rack.

[0043] Preferably, the upper end of the lower wind duct is also provided with a distance detection device 27 for detecting the distance between the upper end of the upper wind duct and the upper end of the lower wind duct. The distance detection device 27 is such as a position switch. When the distance detection device 27 detects that the distance between the upper end of the upper wind duct and the upper end of the lower wind duct reaches a set height, the second drive device stops running, thereby realizing that the second drive device locks the distance between the upper end of the upper wind duct and the upper end of the lower wind duct.

[0044] More specifically, several layers of working platforms 19 are arranged inside the support shaft 2, and the upper and lower working platforms 19 are connected by a straight ladder 24; the base 1 is also provided with a ventilating port 25 for ventilation of the lower layer wind tube 3 and the inside of the support shaft 2. The local control system of the first drive unit and the second drive unit can be configured on the working platform, and personnel can operate the local control system by taking off the working platform.

[0045] Preferably, the base 1 is a box-type structure, and is also provided with an inspection door 26 for entering the base for inspection and maintenance, so that the power supply equipment, power supply lines, signal lines, etc. of the wind tube can be installed in the base.

[0046] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A vertically telescopic rotary wind tube installed on a ship, characterized in that: It includes a base, a support shaft, a lower wind duct and an upper wind duct, wherein the base is arranged above the open deck, the support shaft is fixed above the base, the lower wind duct is sleeved outside the support shaft and located above the base, and the upper wind duct is sleeved outside the lower wind duct; the support shaft is provided with a first driving device for driving the lower wind duct to rotate, and the upper wind duct is provided with a second driving device for driving the upper wind duct to move up and down relative to the lower wind duct; a limiting device is provided between the upper wind duct and the lower wind duct to limit the rotation of the upper wind duct relative to the lower wind duct.

2. A vertically telescopic rotary wind tube installed on a ship according to claim 1, characterized in that: A first bearing is arranged on the outer side of the support shaft near the bottom of the support shaft, and the first bearing support is arranged between the inner wall of the lower wind tube and the outer wall of the support shaft.

3. A vertically telescopic rotary wind tube installed on a ship according to claim 2, characterized in that: A supporting cone is arranged at the outer edge of the upper end of the supporting shaft, a supporting block is arranged on the inner wall of the lower layer wind tube corresponding to the supporting cone, a second bearing is arranged between the supporting block and the supporting cone, and the second bearing support is arranged between the supporting cone and the supporting block.

4. A vertically telescopic rotary wind tube installed on a ship according to claim 3, characterized in that: The first bearing is a thrust tapered roller bearing, and the second bearing is a tapered roller bearing.

5. The vertically telescopic rotary wind tube installed on a ship according to claim 1, characterized in that: The first driving device includes a first driving motor, a first driving gear, and a first inner gear ring. The driving motor is drivingly connected to the first driving gear. The first inner gear ring is fixed to the inner wall of the lower wind tube, and the first driving gear is meshed with the first inner gear ring.

6. A vertically telescopic rotary wind tube installed on a ship according to claim 1, characterized in that: The second driving device includes a rack, a second driving motor, and a second driving gear. The rack is vertically installed on the inner wall of the upper wind duct, the second driving motor is installed on the upper end of the lower wind duct, the second driving motor is transmission-connected to the second driving gear, and the second driving gear is meshed with the rack.

7. A vertically telescopic rotary wind tube installed on a ship according to claim 6, characterized in that: The limiting device is arranged on the outer side of the lower air duct near the upper end of the lower air duct, and the limiting device is cooperated to be limited on the side of the rack.

8. The vertically telescopic rotary wind tube installed on a ship according to claim 1, characterized in that: A blocking cover is arranged at the upper end of the upper air duct, and a supporting seat for limiting the downward movement of the upper air duct is arranged on the side surface of the lower end of the lower air duct.

9. The vertically telescopic rotary wind tube installed on a ship according to claim 1, characterized in that: The upper end of the lower wind duct is also provided with a distance detection device for detecting the distance between the upper end of the upper wind duct and the upper end of the lower wind duct; when the distance detection device detects that the distance between the upper end of the upper wind duct and the upper end of the lower wind duct reaches a set height, the second driving device locks the distance between the upper end of the upper wind duct and the upper end of the lower wind duct.

10. The vertically telescopic rotary wind tube installed on a ship according to claim 1, characterized in that: The support shaft is a hollow structure, and a plurality of working platforms are arranged inside the support shaft, and the upper and lower working platforms are connected by a straight ladder; the base is also provided with a ventilation hole for ventilation of the lower layer wind duct and the inside of the support shaft.

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