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CN-121990106-A - Lifting wing type sail

CN121990106ACN 121990106 ACN121990106 ACN 121990106ACN-121990106-A

Abstract

The invention relates to the field of a sail boosting device, in particular to a lifting airfoil type sail. The wind sail mast is of a segmented telescopic structure, at least one of the wind sail masts is located on the central axis of the wind sail so as to limit the lifting track of the wind sail and avoid deflection around the central axis in the lifting process of the wind sail body.

Inventors

  • WANG MINGXING
  • YANG HAI
  • GAO YIHAN
  • LU RUILIN
  • LV WENLI
  • WANG YUNTAO
  • ZHOU ZHICHAO
  • WANG DECHENG
  • ZOU LUMIN
  • HAN LING

Assignees

  • 株洲时代新材料科技股份有限公司

Dates

Publication Date
20260508
Application Date
20260317

Claims (10)

  1. 1. The lifting wing-type sail is characterized by comprising a plurality of longitudinally arranged sail masts (1), wherein a plurality of groups of supporting trusses (2) are transversely arranged on the sail masts (1), the sail masts (1) form a supporting framework of wing-type sail surfaces (3), web plates (4) are arranged at the butt joint positions of the wing-type sail surfaces (3), the sail masts (1) are of a sectional telescopic structure, and at least one of the plurality of the sail masts (1) is positioned on the central axis of the sail so as to limit the lifting track of the sail and avoid the deflection around the central axis in the lifting process of a sail body.
  2. 2. Lifting airfoil sail according to claim 1, characterized in that the number of sail masts (1) is three, two being located on both sides of the sail whole, the three sail masts (1) axes forming an isosceles triangle in top view.
  3. 3. Lifting airfoil sail according to claim 2, characterized in that the outer side of the sail mast (1) is provided with an arc convex sail surface (33) and a gentle sail surface (34) and a bending sail surface (35) connected to the joint of the arc convex sail surface (33) and the gentle sail surface (34), the mast (1) comprises a middle mast (12) and side masts (11) symmetrically arranged on two sides of the middle mast (12), the middle mast (12) is close to one side of the arc convex sail surface (33), and the side masts (11) are close to one side of the gentle sail surface (34).
  4. 4. A lifting airfoil sail according to claim 3, characterised in that the sail mast (1) comprises an upper mast and a lower mast, both in a rod-like structure connected by screw threads, the outer diameter of the upper mast being smaller than the outer diameter of the lower mast.
  5. 5. The lifting airfoil sail according to claim 4, characterized in that the airfoil sail surface (3) comprises an upper sail surface (31) and a lower sail surface (32), wherein the end of the upper mast is welded to the sail truss (2) and connected to the upper sail surface (31), and the end of the lower mast is welded to the sail truss (2) and connected to the lower sail surface (32).
  6. 6. The lifting airfoil sail according to claim 5, characterized in that the upper mast comprises an upper mast threaded lift platform (6) and the lower mast comprises a lower mast threaded passage (7), the upper mast threaded lift platform (6) is threaded in socket connection with the lower mast threaded passage (7) and is lifted by threaded drive of the upper mast threaded lift platform (6).
  7. 7. The lifting airfoil sail according to claim 6, characterized in that the outer side of the upper mast threaded lifting platform (6) is a spiral lifting structure, the inner side of the lower mast threaded passage (7) is provided with a spiral track structure, and each lower mast bottom part rotates the lower mast threaded passage through a servo motor driving device, so that the upper mast external threaded platform (6) is controlled to move up and down.
  8. 8. The lifting airfoil sail according to claim 5, characterized in that the web (4) is a composite web supporting the sail surface, the web (4) is sleeved on the mast (1), the web (4) is connected with the sail truss (2) through ropes, and when the upper sail surface (31) is lifted, the web (4) determines the distance between the web (4) and the supporting truss (2) through ropes, so that the height of the web (4) is controlled.
  9. 9. The lifting airfoil sail according to claim 8, wherein the bottommost end of the upper mast is in threaded connection with the lower mast to form a threaded lifting platform, the height of the upper mast is adjusted by rotating the threaded passage to control the lifting state of the sail, and the web plate in the upper sail surface falls on the support truss of the lower sail surface under the action of gravity.
  10. 10. Lifting airfoil sail according to any of claims 1-9, characterised in that a lightning rod (5) is mounted on top of each mast, communicating with the mast bottom earthing device.

Description

Lifting wing type sail Technical Field The invention relates to the field of a sail boosting device, in particular to a lifting airfoil type sail. Background At present, a lifting wing type sail only comprises a mast, a sail body lifts along the mast, a phenomenon of 'clamping sail' often occurs in the lifting process of the sail body, namely, the condition that the sail surface is clamped and can not lift is caused, and the main reason for the occurrence of the condition is that the upper sail body and the lower sail body are angularly offset to cause derailment of a sail body slideway. Moreover, the lifting wing-shaped sail is influenced by offshore wind power, so that the lifting wing-shaped sail needs to be lifted frequently to cope with different working conditions, and the phenomenon of clamping the sail can be caused if the upper sail body deflects along the mast in the lifting process. At present, the sail structure only comprises one mast, when wind load is overlarge, the strain generated by the sail body is larger, and the single mast provides insufficient supporting force. At present, most lifting sails adopt a sail lifting mode which is a hydraulic system, and the response is slow and the precision is low. Meanwhile, the sail body skin needs to be supported, and a metal welding skeleton is generally used for supporting the sail surface skin, but the skeleton welding process is complex and heavy. The sail device is easy to be struck by lightning, and can cause structural damage, power system faults and the like. Through searching, 202311451970.9 discloses a cylindrical mast wing type sail boosting device, wherein a sail mast connecting mechanism is arranged on the outer side wall of a cylindrical mast, the wing type sail is fixedly connected with the sail mast connecting mechanism, and the wing type sail can rotate around the axis of the cylindrical mast through the sail mast connecting mechanism. The cylindrical mast simplifies the structural design of the wing-shaped sail boosting device, and has simple manufacturing process, good flexibility and high stability. However, this arrangement is a mast and does not completely avoid the lateral deflection of the sail during lifting. When the wind load is excessive, the strain generated by the sail body is large, and the support force provided by the single mast is insufficient. Therefore, in view of the above-mentioned technical problems, it is necessary to provide an airfoil sail which can improve the structural stability of the sail and avoid the problems of the blockage of the slideway caused by the lateral angular displacement of the sail. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the lifting wing-shaped sail, which improves the stability of the sail structure by increasing the number of masts, simultaneously avoids the problems of slide rail clamping and the like caused by transverse angle deviation of the sail, and has the advantages of quick response, high precision and the like by adopting a method of driving a threaded lifting platform by a motor. The composite material web is arranged in the sail body, so that the effect of supporting the sail surface is achieved, and the structural stability is improved. And lightning rods are arranged at the top of each mast and are grounded through the masts, so that the safety of the sail in thunderstorm weather is improved. The above object of the present invention is achieved by the following technical solutions: The invention discloses a lifting wing-type sail which comprises a plurality of longitudinally arranged sail masts, wherein a plurality of groups of support trusses are transversely arranged on the sail masts, the sail masts form a support framework of wing-type sail surfaces, webs are arranged at the butt joint positions of the wing-type sail surfaces, the sail masts are of a segmented telescopic structure, at least one of the plurality of the sail masts is located on the central axis of the sail so as to limit the lifting track of the sail, and the condition of deflection around the central axis in the lifting process of a sail body is avoided. The lifting wing type sail adopts a plurality of masts to limit the lifting track of the sail, so that the condition of deflection around a central axis in the lifting process of the sail body is avoided. The sail body is lifted in the process of avoiding the angular deviation of the sail, thereby solving the problem of lifting and clamping the sail. On the setting of support truss, multiunit support truss not only provides firm support for wing section sail face, and its transverse layout mode can more evenly disperse the pressure that wind-force brought moreover for whole sail structure can both keep stable under different wind directions and wind-force conditions. Further, the number of the sail masts is three, the two sail masts are positioned on two sides of the whole sail, and the three sail mast axe