A multi-brake wind-assisted rotor

Abstract

The present invention relates to the technical field of wind-assisted rotors, and in particular to a multi-brake wind-assisted rotor. The rotor comprises a base, a tower body, a drum, a driving device and a hydraulic brake assembly. The tower body is arranged on the top of the base and is fixedly connected to the base; the drum is sleeved on the tower body, and the drum is rotatably connected to the tower body; the driving device is installed on the tower body, and the driving device drives the drum to rotate; the hydraulic brake assembly is used to brake the drum, and the hydraulic brake assembly at least comprises an upper hydraulic brake unit and a lower hydraulic brake unit, the upper hydraulic brake unit is arranged on the upper part of the tower body, and the lower hydraulic brake unit is arranged on the lower part of the tower body. The multi-brake wind-assisted rotor adopts a method of braking up and down simultaneously, which can realize the running stability of the drum during the process of starting, braking, speed change and conversion, reduce the shaking amount of the drum, and effectively reduce the maximum stress and deformation amount of each part of the drum, thereby ensuring the strength and rigidity requirements of the drum, thereby reducing the manufacturing process of the drum and reducing the manufacturing cost.

Description

Technical Field

[0001] The present invention relates to the technical field of wind-assisted rotors, and particularly to a multi-brake wind-assisted rotor. Background Art

[0002] With the increasingly severe situation of energy conservation and emission reduction in ships, wind energy is a clean and renewable energy source. However, due to limited space in modern self-propelled ships, most of them do not install large-volume sail-assisted devices, and the utilization of wind energy is almost zero. But now, facing the increasingly serious situation of energy conservation and emission reduction, the use of wind energy for auxiliary propulsion has regained attention. The wind-assisted rotor is a wind-assisted device with good energy-saving effect, strong boosting force and small volume, and has strong application prospects.

[0003] Wind-assisted rotors are usually very tall, with a maximum diameter of 6 meters and a height of more than 30 meters, and need to rotate at high speed. The linear velocity of the cylinder is high, and the moment of inertia of the cylinder is very large. When the rotor is emergently braked, great internal stress and torsional deformation will occur locally in the rotating cylinder. In order to ensure the strength, stiffness and smoothness of the rotating work of the rotating cylinder (the rotating cylinder rotates vertically around the central axis of the inner tower), the manufacturing process of the rotating cylinder is very complex and difficult.

[0004] At present, most hydraulic brakes adopt hydraulic braking systems, with large braking torque and short braking time (about 1-2 seconds for braking time). Usually, the rotating cylinder is made of fiberglass composite materials. During startup and emergency braking, great stress will be generated at the flange connection of the rotating cylinder, which will cause damage or even destruction to the rotating cylinder, affecting the service performance and life of the rotating cylinder.

[0005] Therefore, there is an urgent need for a multi-brake wind-assisted rotor to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-brake wind-assisted rotor, which can adopt corresponding hydraulic brakes for braking according to different overall sizes of the rotor, making the operation of the rotor cylinder more stable and effectively reducing the manufacturing cost of the cylinder.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] Provide a multi-brake wind-assisted rotor, including:

[0009] A base;

[0010] A tower body, arranged on the top of the base and fixedly connected to the base;

[0011] A rotating cylinder, sleeved on the tower body, and the rotating cylinder is rotatably connected to the tower body;

[0012] A driving device, installed on the tower body, and the driving device drives the rotating cylinder to rotate;

[0013] A hydraulic braking assembly for braking a rotating drum, the hydraulic braking assembly at least comprising an upper hydraulic braking unit and a lower hydraulic braking unit, the upper hydraulic braking unit being disposed at the upper part of the tower body, and the lower hydraulic braking unit being disposed at the lower part of the tower body.

[0014] As a preferred technical solution of the above multi-braking wind-assisted rotor,

[0015] The upper hydraulic braking unit includes an upper brake disc and upper hydraulic brakes, at least two of the upper hydraulic brakes being circumferentially distributed along the upper brake disc, and the upper hydraulic braking unit being disposed at the top of the tower body.

[0016] As a preferred technical solution of the above multi-braking wind-assisted rotor,

[0017] A connecting flange is provided at the top of the tower body, a drum flange is provided in the cavity formed by the rotating drum, the connecting flange is connected to the drum flange, and the connecting flange is connected to the brake disc.

[0018] As a preferred technical solution of the above multi-braking wind-assisted rotor,

[0019] The upper brake disc includes a connecting portion and a braking portion, the connecting portion is respectively connected to the braking portion and the connecting flange, and the upper hydraulic brakes are circumferentially distributed along the outer side wall of the braking portion.

[0020] As a preferred technical solution of the above multi-braking wind-assisted rotor,

[0021] The connecting flange includes a connecting ring and a connecting disc, the connecting ring penetrates through the connecting disc, and the connecting ring and the connecting disc are coaxially arranged, and the connecting ring extends into the chamber formed by the connecting portion.

[0022] As a preferred technical solution of the above multi-braking wind-assisted rotor,

[0023] The driving device includes a driving motor and a transmission assembly, the transmission assembly is disposed at the top of the tower body, the driving motor is disposed inside the tower body, the output end of the driving motor is connected to the transmission assembly, and the output end of the transmission assembly is connected to the connecting flange.

[0024] As a preferred technical solution of the above multi-braking wind-assisted rotor,

[0025] The lower hydraulic braking unit includes a lower brake disc and lower hydraulic brakes, the lower brake disc is fixedly connected to the rotating drum, the lower brake disc is provided with brake holes, and at least two of the lower hydraulic brakes are circumferentially distributed along the brake holes.

[0026] As a preferred technical solution of the above multi-brake wind-assisted rotor,

[0027] An avoidance groove is provided below the tower body, and the lower hydraulic brake part is arranged in the avoidance groove.

[0028] As a preferred technical solution of the above multi-brake wind-assisted rotor,

[0029] The hydraulic brake assembly further includes a hydraulic valve assembly and a hydraulic base station, and the hydraulic base station is communicated with the upper hydraulic brake unit and the lower hydraulic brake unit respectively through the hydraulic valve assembly.

[0030] As a preferred technical solution of the above multi-brake wind-assisted rotor,

[0031] It further includes an electric control cabinet, and the electric control cabinet is electrically connected to the driving device, the hydraulic brake assembly and the hydraulic base station respectively.

[0032] Advantages of the present invention:

[0033] The multi-brake wind-assisted rotor provided by the present invention includes a base, a tower body, a rotating cylinder, a driving device and a hydraulic brake assembly. The tower body is arranged on the top of the base and fixedly connected to the base; the rotating cylinder is sleeved on the tower body and is rotatably connected to the tower body; the driving device is installed on the tower body and drives the rotating cylinder to rotate; the hydraulic brake assembly is used to brake the rotating cylinder, and the hydraulic brake assembly at least includes an upper hydraulic brake unit and a lower hydraulic brake unit. The upper hydraulic brake unit is arranged on the upper part of the tower body, and the lower hydraulic brake unit is arranged on the lower part of the tower body. The hydraulic brake assembly at least includes an upper hydraulic brake unit and a lower hydraulic brake unit. The upper hydraulic brake unit is used to brake the part of the rotating cylinder above the tower body, and the lower hydraulic brake unit is used to brake the part of the rotating cylinder driven below the tower body. This multi-brake wind-assisted rotor adopts the method of simultaneous upper and lower braking, which can realize the running stability of the rotating cylinder during the processes of starting, braking, speed change and conversion, reduce the shaking amount of the rotating cylinder, effectively reduce the maximum stress and deformation amount received by each part of the rotating cylinder, so as to ensure the strength and stiffness requirements of the rotating cylinder, thereby reducing the manufacturing process of the rotating cylinder and reducing the manufacturing cost. Description of the drawings

[0034] Figure 1 is a schematic structural diagram of the multi-brake wind-assisted rotor provided by an embodiment of the present invention;

[0035] Figure 2 is Figure 1 a cross-sectional view taken along line A-A of

[0036] Figure 3 is Figure 2 a cross-sectional view taken at position B in

[0037] Figure 4 Yes Figure 2 is a sectional view taken at position C in

[0038] In the figure:

[0039] 1. Base; 2. Tower body; 21. Avoidance groove; 3. Rotating cylinder; 31. Rotating cylinder flange; 4. Upper hydraulic braking unit; 41. Upper brake disc; 411. Connecting part; 412. Braking part; 42. Upper hydraulic brake; 5. Lower hydraulic braking unit; 51. Lower brake disc; 52. Lower hydraulic brake; 6. Connecting flange; 61. Connecting ring; 62. Connecting disc; 7. Driving device; 71. Driving motor; 72. Transmission component; 73. Coupling; 81. Hydraulic base station; 82. Pipeline; 83. Hydraulic valve assembly; 9. Electric control cabinet. Specific implementation manner

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] In view of the problem that the large braking torque during the braking process of the existing wind-assisted propulsion patent causes large internal stress in the rotor and torsional deformation, this embodiment provides a multi-braking wind-assisted propulsion rotor to solve the above problem.

[0045] Specifically, Figure 1 and Figure 2 As shown, the multi-brake wind-assisted rotor includes a base 1, a tower body 2, a drum 3, a driving device 7 and a hydraulic brake assembly, wherein the tower body 2 is arranged on the top of the base 1 and fixedly connected to the base 1; the drum 3 is sleeved on the tower body 2, and the drum 3 is rotatably connected to the tower body 2. The tower body 2 plays a supporting role for the drum 3 and is used to support the drum 3, so the tower body 2 is fixed and does not rotate; the driving device 7 is installed on the tower body 2, and the driving device 7 drives the drum 3 to rotate; the hydraulic brake assembly is used to brake the drum 3, and the hydraulic brake assembly at least includes an upper hydraulic brake unit 4 and a lower hydraulic brake unit 5, the upper hydraulic brake unit 4 is arranged at the upper part of the tower body 2, and the lower hydraulic brake unit 5 is arranged at the lower part of the tower body 2.

[0046] A multi-brake wind-assisted rotor is provided in an embodiment of the present invention, and the hydraulic brake assembly includes at least an upper hydraulic brake unit 4 and a lower hydraulic brake unit 5. The upper hydraulic brake unit 4 is used to brake the drum 3 part above the brake tower body 2, and the lower hydraulic brake unit 5 is used to brake the drum 3 part driven by the lower part of the brake tower body 2. The multi-brake wind-assisted rotor adopts a method of braking the drum 3 simultaneously from top to bottom, which can achieve the running stability of the drum 3 during the processes of starting, braking, speed changing and conversion, reduce the shaking amount of the drum 3, and effectively reduce the maximum stress and deformation of various parts of the drum 3, thereby ensuring the strength and stiffness requirements of the drum 3, thereby reducing the manufacturing process of the drum 3 and reducing the manufacturing cost.

[0047] like Figure 3As shown, optionally, in this embodiment, the upper hydraulic braking unit 4 includes an upper brake disc 41 and upper hydraulic brakes 42. At least two upper hydraulic brakes 42 are circumferentially distributed along the upper brake disc 41. The number of upper hydraulic brakes 42 is rotated according to the diameter of the upper brake disc 41. Usually, the arrangement form of the upper hydraulic brakes 42 is evenly distributed along the circumference of the brake disc. Such a setting can ensure that the braking forces received by the upper brake disc 41 at each braking point are the same and the force is evenly distributed, preventing the upper brake disc 41 from being deformed due to uneven force. In addition, the upper hydraulic braking unit 4 is arranged at the top of the tower body 2 to brake the drum 3 located above the tower body 2.

[0048] The drum 3 can rotate relative to the tower body 2, which is specifically realized by a driving device 7 arranged on the tower body 2. As Figure 3 shown, a connecting flange 6 is arranged at the top of the tower body 2, and a drum flange 31 is arranged in the cavity formed by the drum 3. The drum flange 31 is connected to the drum 3 by welding. The connecting flange 6 and the drum flange 31 are connected, and the connecting flange 6 is connected to the upper brake disc 41. The driving device 7 drives the connecting flange 6 to rotate, and the drum flange 31 connected to the connecting flange 6 rotates together with the connecting flange 6, thereby driving the drum 3 to rotate. When braking is required, the upper hydraulic brakes 42 brake the upper brake disc 41, and then the purpose of braking the drum 3 can be achieved. Since the driving device 7 is installed on the tower body 2, the connecting flange 6 is connected to the output end of the driving device 7. Optionally, the driving device 7 includes a driving motor 71 and a transmission component 72. The transmission component 72 is located at the top of the tower body 2, while the driving motor 71 is located inside the tower body 2. The output shaft of the driving motor 71 is connected to the transmission component 72 through a coupling 73, and the output end of the transmission component 72 is connected to the connecting flange 6 by interference fit.

[0049] Specifically, continue to refer to Figure 3, the upper brake disc 41 includes a connecting portion 411 and a braking portion 412. The connecting portion 411 is connected to the braking portion 412 and the connecting flange 6 respectively. The upper hydraulic brake 42 is circumferentially distributed along the outer wall of the braking portion 412. The connecting portion 411 and the braking portion 412 are fixedly connected, and the connecting portion 411 and the connecting flange 6 are connected by interference fit. More specifically, the connecting flange 6 includes a connecting ring 61 and a connecting disc 62. The connecting ring 61 penetrates through the connecting disc 62, and the connecting ring 61 and the connecting disc 62 are coaxially arranged. The connecting ring 61 extends into the chamber formed by the connecting portion 411. The connecting ring 61 and the connecting disc 62 are actually an integral structure. The output shaft of the transmission assembly 72 enters the space formed by the connecting ring 61. The output shaft of the transmission assembly 72 is connected to the connecting ring 61 by interference fit, and the connecting portion 411 of the brake disc is connected to the connecting ring 61 by interference fit. When the drive motor 71 works, the output shaft of the transmission assembly 72 is connected to the connecting flange 6 to drive the connecting flange 6 to rotate. The connecting flange 6 drives the drum flange 31 and the brake disc to rotate. When braking is required, the upper hydraulic brake 42 brakes the brake disc, and the connecting flange 6 connected to the brake disc will also be braked, so as to brake the drum flange 31 and achieve the purpose of braking the drum 3.

[0050] Specifically, as Figure 4 shown, the lower hydraulic braking unit 5 includes a lower brake disc 51 and a lower hydraulic brake 52. The lower brake disc 51 is fixedly connected to the drum 3. The lower brake disc 51 is provided with brake holes, and at least two lower hydraulic brakes 52 are circumferentially distributed along the brake holes. The number of the lower hydraulic brakes 52 is set according to needs and is not specifically limited in this embodiment. Since the placement of the lower hydraulic brakes 52 requires a certain space, and it is affected when the diameter of the tower body 2 is small, for this reason, an avoidance groove 21 is provided below the tower body 2 in this embodiment, and part of the lower hydraulic brakes 52 is arranged in the avoidance groove 21. The avoidance groove 21 is an annular structure and can accommodate the placement of multiple lower hydraulic brakes 52.

[0051] Of course, the hydraulic braking components set the hydraulic braking units according to the height of the tower body 2. When the tower body 2 is high enough, a middle hydraulic braking unit can also be provided in the middle of the tower body. The numbers of the upper hydraulic braking unit 4, the middle hydraulic braking unit and the lower hydraulic braking unit 5 are not specifically limited and are selected according to actual needs. The structure of the middle hydraulic braking unit can be the same as or different from any one of the structures of the upper hydraulic braking unit 4 and the lower hydraulic braking unit 5, and the specific structure is limited according to actual needs.

[0052] Since it is hydraulic braking in this embodiment, therefore, the hydraulic braking components further include a hydraulic valve assembly 83 and a hydraulic base station 81. Continue to refer to Figure 1, the hydraulic base station 81 is respectively communicated with the upper hydraulic braking unit 4 and the lower hydraulic braking unit 5 through a hydraulic valve assembly 83. The hydraulic valve assembly 83 includes a flow control valve and a direction control valve. The flow control valve, the direction control valve and the hydraulic base station 81 are connected through a pipeline 82 to supply oil to the executing components (i.e., the lower hydraulic brake 52 and the upper hydraulic brake 42), and the purpose of spot braking the rotary drum 3 is achieved by controlling the flow rate of the hydraulic oil, so that the rotary drum 3 can decelerate smoothly. The hydraulic base station 81 is a hydraulic pump station, and the hydraulic pump station includes an oil tank, a power motor and an oil pump. The power motor drives the oil pump to rotate. The oil pump sucks oil from the oil tank and then pumps the oil, converting mechanical energy into the pressure energy of the hydraulic oil. After the direction, pressure and flow rate of the hydraulic oil are adjusted through the hydraulic valve assembly 83, the hydraulic oil is transmitted to the upper hydraulic brake 42 and the lower hydraulic brake 52 through the external pipeline 82, thereby controlling the change of the brake direction, the magnitude of the force and the speed, and driving the upper and lower hydraulic brakes 52 to do work.

[0053] In order to realize the intelligent control of the hydraulic valve assembly 83 and the hydraulic base station 81, in this embodiment, the multi-brake wind-assisted rotor further includes an electric control cabinet 9, and the electric control cabinet 9 is electrically connected to the driving device 7, the hydraulic braking assembly and the hydraulic base station 81 respectively, so that the rotary drum 3 rotates according to needs.

[0054] When the wind-assisted patent needs to be braked, the driving device 7 stops driving the rotary drum 3 to rotate, so that the rotary drum 3 rotates inertially to a preset speed; the hydraulic braking assembly is started to work, and the braking force of the hydraulic braking assembly on the rotary drum 3 gradually increases to a preset braking force, and the rotary drum 3 is spot-braked until the rotational speed of the rotary drum 3 drops to 0.

[0055] By combining hydraulic control and electric control, the braking time and braking frequency can be adjusted, the braking time of the multi-brake wind-assisted rotor can be extended, the internal stress and torsional deformation of the rotary drum 3 caused by braking can be reduced, the strength and stiffness of the rotary drum 3 can be guaranteed, the operation of the rotary drum 3 can be made more stable, and at the same time, the manufacturing cost of the rotary drum 3 can be effectively reduced.

[0056] In addition, the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A multi-braking wind-assisted rotor, characterized in that, Comprising: A base (1); A tower body (2), arranged on the top of the base (1) and fixedly connected to the base (1); A rotating cylinder (3), sleeved on the tower body (2), and the rotating cylinder (3) is rotatably connected to the tower body (2); A driving device (7), installed on the tower body (2), and the driving device (7) drives the rotating cylinder (3) to rotate; A hydraulic braking assembly for braking the rotating cylinder (3), the hydraulic braking assembly at least includes an upper hydraulic braking unit (4) and a lower hydraulic braking unit (5), the upper hydraulic braking unit (4) is arranged at the upper part of the tower body (2), and the lower hydraulic braking unit (5) is arranged at the lower part of the tower body (2); The lower hydraulic braking unit (5) includes a lower brake disc (51) and a lower hydraulic brake (52), the lower brake disc (51) is fixedly connected to the rotating cylinder (3), the lower brake disc (51) is provided with brake holes, and at least two of the lower hydraulic brakes (52) are circumferentially distributed along the brake holes; The upper hydraulic braking unit (4) includes an upper brake disc (41) and an upper hydraulic brake (42), at least two of the upper hydraulic brakes (42) are circumferentially distributed along the circumference of the upper brake disc (41), and the upper hydraulic braking unit (4) is arranged at the top of the tower body (2).

2. The multi-brake wind-assisted rotor according to claim 1, characterized in that, A connecting flange (6) is arranged at the top of the tower body (2), a rotating cylinder flange (31) is arranged in the cavity formed by the rotating cylinder (3), the connecting flange (6) is connected to the rotating cylinder flange (31), and the connecting flange (6) is connected to the upper brake disc.

3. The multi-brake wind-assisted rotor according to claim 2, wherein, The upper brake disc (41) includes a connecting portion (411) and a braking portion (412), the connecting portion (411) is respectively connected to the braking portion (412) and the connecting flange (6), and the upper hydraulic brakes (42) are circumferentially distributed along the outer side wall of the braking portion (412).

4. The multi-brake wind-assisted rotor according to claim 3, characterized in that, The connecting flange (6) includes a connecting ring (61) and a connecting disc (62), the connecting ring (61) penetrates through the connecting disc (62), and the connecting ring (61) is coaxially arranged with the connecting disc (62), and the connecting ring (61) extends into the chamber formed by the connecting portion (411).

5. The multi-brake wind-assisted rotor according to claim 2, characterized in that, The driving device (7) includes a driving motor (71) and a transmission assembly (72), the transmission assembly (72) is arranged at the top of the tower body (2), the driving motor (71) is arranged inside the tower body (2), the output end of the driving motor is connected to the transmission assembly (72), and the output end of the transmission assembly (72) is connected to the connecting flange (6).

6. The multi-brake wind-assisted rotor according to claim 1, wherein An avoidance groove (21) is arranged below the tower body (2), and a part of the lower hydraulic brake (52) is arranged in the avoidance groove (21).

7. The multi-brake wind-assisted rotor according to any one of claims 1-6, characterized in that, The hydraulic braking assembly further includes a hydraulic valve assembly (83) and a hydraulic base station (81), and the hydraulic base station (81) is communicated with the upper hydraulic braking unit (4) and the lower hydraulic braking unit (5) through the hydraulic valve assembly (83).

8. The multi-brake wind-assisted rotor according to claim 7, characterized in that, It further includes an electric control cabinet (9), and the electric control cabinet (9) is electrically connected to the driving device (7), the hydraulic braking assembly, and the hydraulic base station (81) respectively.

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