Safe, stable and low-power-consumption tilting sail device

Abstract

The utility model belongs to the field of tilting sails, and relates to a safe, stable and low-power-consumption tilting sail device. A safe, stable and low-power-consumption tilting sail device is characterized by comprising sail blades (1); the sail blade base (11) is used for supporting the sail blades (1); the driving mechanism (100) is used for driving the sail blades (1) to pitch; the counterweight mechanism (200) is used for keeping moment balance of the sail blades (1) in the pitching process; and the counterweight mechanism (200) and the sail blade (1) are in a moment balance state at any angle position in the pitching process. According to the safe, stable and low-power-consumption tilting sail device, the complexity and the power consumption requirement of a hydraulic driving mechanism are reduced, the problem that a driving system is difficult to control the pitching speed of the sail blades and bear large impact loads is solved, the interference resistance to external impact loads is improved, and it is guaranteed that the motion of a sail blade pitching mechanism is more stable and reliable.

Description

Technical Field

[0001] The invention belongs to the field of tiltable sails and relates to a safe, stable and low-power tiltable sail device. Background Art

[0002] At present, the requirements for the green level of ships are increasing, and countries around the world are actively developing various energy-saving and emission-reduction technologies. Among them, with the research and development of information technology and modern sail theory, sail propulsion, as the oldest energy-saving technology, has returned to the stage of green application in shipping. How to improve the lightweight and intelligent operation of the sail device, improve the convenience of maintenance and the applicability of the ship type, has become the key direction of the research and development of the sail propulsion device in the future. The hard wing sail product adopts a mast and sail blade structure. By setting up a lifting system and a rotation system, the automatic lifting and angle adjustment of the sail blade can be realized, thereby effectively utilizing wind resources. During the lifting process of the hard wing sail, the mast and sail blade must be upright, which makes it difficult to maintain the sail, and causes a series of problems such as limited driving vision and poor ship type applicability for ship layout and navigation.

[0003] The prior art tiltable sail device can tighten and release the wire rope through the wire rope winch set on the common base of the sail to achieve the erection and tilting operation of the sail body. Since the tiltable sail body adopts non-metallic fiber material, the weight of the sail body is greatly reduced, and the weight of a single sail body is about less than 20 tons. Although the weight of the sail body is greatly reduced, due to the high height of the tiltable sail body, usually about 30m, during the tilting or erecting operation, only the gravity will produce a large overturning resistance torque, which needs to be overcome by the driving mechanism to generate sufficient power torque, and the power consumption of the driving mechanism is very large. At the same time, during the tilting operation of the sail body, it mainly bears wind load, ship inertia load and self-gravity load. Since the external wind load and the acceleration load direction of the ship in three directions change suddenly at any time, the sail body will face extremely unstable impact loads during the tilting operation. This part of the unstable impact load will bring instability factors to the tilting operation of the sail body, which will seriously affect the safe operation of the sail. Summary of the invention

[0004] In order to solve the problems of the prior art that the driving mechanism of the tiltable sail device requires a large driving force, a large power consumption, a complex driving mechanism structure, low accuracy in controlling the pitch angle of the sail, and unstable impact loads on the sail body during the pitching process leading to instability of the device and poor safety, the present invention provides a safe, stable and low-power tiltable sail device, which is characterized by: comprising a sail blade; a sail blade base for supporting the sail blade; a driving mechanism for driving the sail blade to pitch; and a counterweight mechanism for maintaining torque balance of the sail blade during the pitching process; the counterweight mechanism and the sail blade are in a torque balance state at any angle position during the pitching process.

[0005] According to the above-mentioned safe, stable and low-power-consumption tiltable sail device, it is characterized in that the driving mechanism and the counterweight mechanism are connected to each other, so that the sail blades can be in a self-locking state when in the vertical and tilted states.

[0006] According to the above-mentioned safe, stable and low-power tiltable sail device, it is characterized in that: a sail blade support is provided at the bottom of the sail blade;

[0007] The driving mechanism comprises a driving device; a driving arm hinged to the driving device through a hinge point F; and a driving rod having the other end of the driving arm hinged to the driving arm through a hinge point E;

[0008] The other end of the driving rod is hinged to the sail blade support through a hinge point C.

[0009] According to the above-mentioned safe, stable, low-power-consumption tiltable sail device, it is characterized in that: a sail blade support is provided at the bottom of the sail blade; the sail blade support is hinged to the sail blade base through a hinge point D.

[0010] According to the above-mentioned safe, stable and low-power tiltable sail device, it is characterized in that: the counterweight mechanism includes: a counterweight rod hinged to the sail blade support through a hinge point C; a counterweight arm hinged to the other end of the counterweight rod through a hinge point B; a counterweight block arranged at the other end of the counterweight arm; a counterweight bracket hinged to the counterweight arm through a hinge A;

[0011] A counterweight base frame fixedly arranged on the ship deck is arranged at the bottom of the counterweight bracket.

[0012] According to the above-mentioned safe, stable and low-power tiltable sail device, it is characterized in that the line connecting the hinge point A and the hinge point B is parallel to the line connecting the hinge point C and the hinge point D and has the same length.

[0013] According to the above-mentioned safe, stable and low-power tiltable sail device, it is characterized in that: during the tilting angle of 90° between the tilting state and the upright state of the sail blade, the driving arm rotates 180° around the hinge point F.

[0014] According to the safe, stable, low-power tiltable sail device described above, it is characterized in that: when the sail blade is in a tilted state or an upright state, the hinge point F, the hinge point E and the hinge point C are all in the same straight line; when the sail blade is in a tilted state, the hinge point E is between the hinge point F and the hinge point C; when the sail blade is in an upright state, the hinge point F is between the hinge point E and the hinge point C.

[0015] According to the above-mentioned safe, stable and low-power-consumption tiltable sail device, it is characterized in that the driving rod is a curved structure, and the driving rod does not interfere with the counterweight bracket when rotating.

[0016] According to the above-mentioned safe, stable and low-power consumption tiltable sail device, it is characterized in that the weight of the counterweight block is adjustable.

[0017] The advantages of the present invention compared with the prior art are:

[0018] 1. The present invention adopts a torque-balanced four-bar linkage design with a counterweight to ensure that the sail blade is in a torque-balanced state at any angle during the pitching process. The driving mechanism only needs to provide a very small driving force to achieve the pitching operation of the sail blade without overcoming the huge resistance brought by the sail blade during the pitching process, which greatly reduces the complexity and power consumption requirements of the driving mechanism. At the same time, it solves the problem that the driving system is difficult to control the pitching speed of the sail blade and withstand a large impact load, ensuring that the movement of the sail blade pitching mechanism is more stable and reliable.

[0019] 2. The present invention adopts a "double dead point" design for the driving rocker mechanism to achieve mechanical locking of the sail blades in the tilted and upright states, which greatly improves the anti-interference ability to external impact loads and does not generate additional load on the driving device, further improving the stability and safety of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Front view of the schematic diagram of the structure of a safe, stable and low-power tiltable sail device.

[0021] Figure 2 A top view of the schematic diagram of the structure of a safe, stable and low-power tiltable sail device.

[0022] Figure 3 A front view of a structural schematic diagram of a counterweight mechanism of a safe, stable, low-power tiltable sail device when the sail is tilted.

[0023] Figure 4 A front view of a structural schematic diagram of a counterweight mechanism of a safe, stable, low-power tiltable sail device when the sail is in an upright state.

[0024] Figure 5 A front view of a schematic structural diagram of a driving mechanism of a safe, stable, low-power tiltable sail device when the sail is tilted.

[0025] Figure 6 A front view of a schematic structural diagram of a driving device of a safe, stable, low-power tiltable sail device when the sail is in an upright state.

[0026] Figure 7 A front view of a schematic structural diagram of a safe, stable, low-power tiltable sail device in an upright state.

[0027] In the figure: 1: sail blade; 100: driving mechanism; 101: driving device; 200: counterweight mechanism; 2: counterweight pull rod; 3: counterweight arm; 4: counterweight block; 5: driving pull rod; 6: driving arm; 8: counterweight bracket; 9: rotating mechanism; 10: counterweight base; 11: sail blade base; 12: sail blade support; 13: pitch hinge axis. DETAILED DESCRIPTION

[0028] Preferred Embodiments

[0029] A safe, stable and low-power-consumption tiltable sail device: comprising a sail blade 1;

[0030] A sail blade base 11 for supporting the sail blade 1; a driving mechanism 100 for driving the sail blade 1 to pitch; and a counterweight mechanism 200 for maintaining torque balance of the sail blade 1 during the pitching process; the counterweight mechanism 200 and the sail blade 1 are in a torque balance state at any angular position during the pitching process.

[0031] The driving mechanism 100 and the counterweight mechanism 200 are connected to each other, so that the sail blade 1 is in a self-locking state when in the vertical state and the tilted state.

[0032] A sail blade support 12 is provided at the bottom of the sail blade 1;

[0033] The driving mechanism 100 comprises a driving device 101; a driving arm 6 hinged to the driving device 101 via a hinge point F; a driving rod 5 having the other end of the driving arm 6 hinged to the driving arm 6 via a hinge point E;

[0034] The other end of the driving rod 5 is hinged to the sail blade support 12 via a hinge point C.

[0035] A sail blade support 12 is provided at the bottom of the sail blade 1; the sail blade support 12 is hinged to the sail blade base 11 through a hinge point D.

[0036] The counterweight mechanism 200 comprises: a counterweight rod 2 hinged to the sail blade support 12 via a hinge point C; a counterweight arm 3 hinged to the other end of the counterweight rod 2 via a hinge point B; a counterweight block 4 provided at the other end of the counterweight arm 3; and a counterweight bracket 8 hinged to the counterweight arm 3 via a hinge A.

[0037] A counterweight base frame 10 fixedly arranged on the deck of the ship is arranged at the bottom of the counterweight bracket 8 .

[0038] The line connecting the hinge point A and the hinge point B is parallel to the line connecting the hinge point C and the hinge point D and has the same length.

[0039] During the travel of the sail blade 1 with a tilt angle of 90° between the tilted state and the upright state, the driving arm 6 rotates 180° around the hinge point F.

[0040] When the sail blade 1 is in a tilted state or an upright state, the hinge point F, the hinge point E and the hinge point C are all in the same straight line; when the sail blade 1 is in a tilted state, the hinge point E is between the hinge point F and the hinge point C; when the sail blade 1 is in an upright state, the hinge point F is between the hinge point E and the hinge point C.

[0041] The driving rod 5 is a curved structure, and the driving rod 5 does not interfere with the counterweight bracket 8 when rotating.

[0042] The weight of the counterweight 4 is adjustable.

[0043] By applying the driving mechanism 101, the driving arm 6 can flip 180° during the 90° tilting angle stroke from the tilting of the sail blade 1 to the upright state. The tilting angle of the sail blade 1 is 1 / 2 times the flipping angle of the driving arm 6. The tilting angle of the sail blade 1 can be controlled with high precision by controlling the flipping angle of the driving arm 6, thereby greatly improving the positioning accuracy of the pitching operation of the sail blade 1. In addition, when the sail blade 1 is in an upright state, if the sail blade 1 is subjected to an external impact load, since the hinge point of the driving crank rocker mechanism is in a dead point position at this time, that is, the hinge point F, the hinge point E and the hinge point C are in the same straight line, the impact force of the impact load on the sail blade 1 will be borne by the sail blade support 12 and the crank rocker mechanism, and the tension direction of the impact load is mechanically self-locking through the hinge point F, and no torque is formed on the drive device 101; when the sail blade 1 is in a tilted state, if the sail blade 1 is subjected to an external impact load, since the hinge point of the driving crank rocker mechanism is still in a dead point position at this time, that is, the hinge point F, the hinge point E and the hinge point C are in the same straight line, the impact force of the impact load on the sail blade will be borne by the sail blade support 12 and the crank rocker mechanism, and the tension direction of the impact load is mechanically self-locking through the hinge point F, and no torque is formed on the drive device 101; through the dead point of the crank rocker mechanism, the stability and safety of the device operation are greatly improved.

[0044] When the tiltable sail device is in the tilted state, the torque-balanced four-bar mechanism with the counterweight mechanism 200: the four hinge points ABCD are in a parallelogram state, the counterweight block 4 is in a high position, the hinge point B and the hinge point D are between the hinge point A and the hinge point C; the crank rocker mechanism is in the dead point position, that is, at this time the hinge point F, the hinge point E and the hinge point C are in the same straight line, and the hinge point E is between the hinge point F and the hinge point C; due to the existence of the mechanical dead point, the device realizes its own mechanical interlocking, even if the sail blade 1 is subjected to an external impact load, the force balance will not be broken by external force, the device is safe, stable and has strong anti-interference ability.

[0045] When the sail 1 starts to stand upright from the tilted state, the driving cylinder piston rod of the driving device 101 extends out, and is decelerated and changed direction through the internal reducer, so as to realize the conversion of the reciprocating telescopic motion of the cylinder into the counterclockwise rotation motion of the cylinder shaft, i.e. the hinge point F. The cylinder shaft drives the driving arm 6 to realize counterclockwise flipping around the cylinder shaft, and a very small internal initial force is used to break the dead point interlocking equilibrium state of the crank rocker mechanism, even if the hinge point E rotates counterclockwise with the driving arm 6 and breaks away from the colinear state of the hinge point F and the hinge point C. At this time, the driving cylinder drives the driving arm 6 to drive the driving rod 5 and the hinge point C through the hinge point E to realize synchronous motion, so that the sail blade 1 can be pulled up with a very small driving force. During the process of pulling up the sail blade 1, the hinge point A and the hinge point D are fixed, the hinge point B rotates around the hinge point A, and the hinge point C rotates around the hinge point D. The counterweight block 4 descends counterclockwise as the sail blade 1 is erected counterclockwise, and the center of gravity of the counterweight block 4 is lowered on the left side of the hinge point A, and the center of gravity of the sail blade 1 is raised on the right side of the hinge point D. The change in the center of gravity of the counterweight block 4 compensates for the influence of the change in the center of gravity of the sail blade 1, and the two realize dynamic balance and complementation, ensuring that the sail blade 1 is in a torque balance state at any angle position during the pitching process. The cylinder drive mechanism only needs to provide a very small driving force to realize the pitching operation of the sail blade 1 without overcoming the huge resistance brought by the sail blade 1 during the pitching process, which greatly reduces the complexity and power consumption requirements of the drive mechanism 100, and solves the problem that the drive mechanism 100 is difficult to control the pitching speed of the sail blade 1 and withstand a large impact load, ensuring that the movement of the pitching mechanism of the sail blade 1 is more stable and reliable, and greatly improving the stability of the sail device during the pitching operation.

[0046] The above is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can make equivalent replacements or changes according to the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, which are all covered by the protection scope of the present invention. For example: the counterweight block is non-replaceable; the material of the counterweight block 4 is concrete, other metals or non-metallic materials, etc.; the drive mechanism 100 is mechanically driven, such as a motor combined with a reducer or a reduction motor or a hydraulic motor; the rods in the connecting rod mechanism and the crank rocker mechanism are changed to other shapes or relative positions, etc.

Claims

1. A safe, stable, low-power tiltable sail device, characterized by: The invention comprises a sail blade (1); a sail blade base (11) for supporting the sail blade (1); a driving mechanism (100) for driving the sail blade (1) to pitch; and a counterweight mechanism (200) for maintaining torque balance of the sail blade (1) during the pitching process; the counterweight mechanism (200) and the sail blade (1) are in a torque balance state at any angle position during the pitching process; and the sail blade (1), the sail blade base (11), the driving mechanism (100) and the counterweight mechanism (200) are hingedly connected by a connecting rod.

2. The safe, stable, low-power-consumption tiltable sail device according to claim 1, characterized in that: The driving mechanism (100) and the counterweight mechanism (200) are connected to each other, and can enable the sail blade (1) to be in a self-locking state when in an upright state or a tilted state.

3. The safe, stable and low-power-consumption tiltable sail device according to claim 2 is characterized by: A sail blade support (12) is provided at the bottom of the sail blade (1); The driving mechanism (100) comprises a driving device (101); a driving arm (6) hinged to the driving device (101) via a hinge point F; and a driving pull rod (5) at the other end of the driving arm (6) hinged to the driving arm (6) via a hinge point E; The other end of the driving rod (5) is hinged to the sail blade support (12) via a hinge point C.

4. The safe, stable, low-power-consumption tiltable sail device according to claim 2 or 3, characterized in that: A sail blade support (12) is provided at the bottom of the sail blade (1); the sail blade support (12) is hinged to the sail blade base (11) via a hinge point D.

5. The safe, stable and low-power-consumption tiltable sail device according to claim 4 is characterized by: The counterweight mechanism (200) comprises: a counterweight rod (2) hinged to the sail blade support (12) via a hinge point C; a counterweight arm (3) hinged to the other end of the counterweight rod (2) via a hinge point B; a counterweight block (4) arranged at the other end of the counterweight arm (3); and a counterweight bracket (8) hinged to the counterweight arm (3) via a hinge A. A counterweight base frame (10) fixedly arranged on the deck of the ship is arranged at the bottom of the counterweight bracket (8).

6. The safe, stable, low-power-consumption tiltable sail device according to claim 5, characterized in that: The line connecting the hinge point A and the hinge point B is parallel to the line connecting the hinge point C and the hinge point D and has the same length.

7. The safe, stable, low-power-consumption tiltable sail device according to claim 5 or 6, characterized in that: During the travel of the sail blade (1) from the tilting state to the upright state with a tilting angle of 90°, the driving arm (6) rotates 180° around the hinge point F.

8. The safe, stable, low-power-consumption tiltable sail device according to claim 7, characterized in that: When the sail blade (1) is in a tilted state or an upright state, the hinge point F, the hinge point E and the hinge point C are all in the same straight line; when the sail blade (1) is in a tilted state, the hinge point E is between the hinge point F and the hinge point C; when the sail blade (1) is in an upright state, the hinge point F is between the hinge point E and the hinge point C.

9. The safe, stable, low-power-consumption tiltable sail device according to claim 8, characterized in that: The driving rod (5) is a curved structure, and the driving rod (5) does not interfere with the counterweight bracket (8) when rotating.

10. The safe, stable, low-power-consumption tiltable sail device according to claim 9, characterized in that: The weight of the counterweight (4) is adjustable.

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