Balance control device for windmill of vertical-axis wind turbine

Abstract

The utility model belongs to the field of wind power generation, and particularly relates to a windmill balance control device of a vertical-axis wind turbine, which comprises a windmill tower, a power transmission vertical shaft, a windmill blade support and a universal balance tray, the windmill tower consists of a cross beam and a vertical beam, and the upper-end universal balance tray is mounted in the center of the cross beam at the upper end of the windmill tower. The lower-end universal balance tray is installed in the center of a cross beam at the lower end of the windmill tower, the power transmission vertical shaft is perpendicular to the ground and installed between the upper-end universal balance tray and the lower-end universal balance tray, and the windmill blade support is installed on the outer side of the power transmission vertical shaft. A first universal adjusting tray bearing arm is arranged in the second universal adjusting tray bearing arm. The device is reasonable in design, compact in structure, firm and practical, and damage of tower top swing deviation to bearings at the two ends of the power transmission vertical shaft can be completely filtered out through the universal balance tray.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a windmill balance control device for a vertical axis wind turbine generator. Background Art

[0002] With the proposal of the "dual carbon" goals of carbon peak and carbon neutrality, and people's in-depth understanding of the concept of green energy development, especially wind power generation has received more and more strong support from the country and attention from enterprises, the proportion of wind power generation in the power industry has become increasingly larger, and the requirements for wind energy utilization and smooth operation have been continuously improved. A balance control device for a vertical-axis wind turbine has come into being.

[0003] In the current existing technology, when the wind turbine tower of a large-scale vertical-axis wind turbine reaches a certain height, the wind force is too strong and the top of the tower is prone to offset and swing, causing damage to the load-bearing bearings and concentric bearings of the power transmission vertical shaft, resulting in dangerous problems. It also limits the use area of ​​the wind blades, affects the utilization rate of wind energy, increases investment costs, and prolongs the investment recovery time. Therefore, we propose a vertical-axis wind turbine wind turbine balance control device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a vertical axis wind turbine balance control device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wind turbine balancing control device for a vertical axis wind turbine comprises a wind turbine tower, a power transmission vertical shaft, a wind turbine blade bracket and a universal balancing tray. The wind turbine tower is composed of a horizontal beam and a vertical beam. The upper universal balancing tray is installed in the center of the upper horizontal beam of the wind turbine tower, and the lower universal balancing tray is installed in the center of the lower horizontal beam of the wind turbine tower. The power transmission vertical shaft is installed perpendicular to the ground between the upper and lower universal balancing trays, and the wind turbine blade bracket is installed on the outside of the power transmission vertical shaft.

[0007] Preferably, the universal balancing pallet comprises a universal adjustment pallet load-bearing arm 2, a universal adjustment pallet load-bearing arm 1 is arranged inside the universal adjustment pallet load-bearing arm 2, and a load-bearing bearing pallet is arranged inside the universal adjustment pallet load-bearing arm 1.

[0008] Preferably, a load-bearing bearing is installed on the load-bearing bearing tray, and the power transmission vertical shaft is connected to the load-bearing bearing.

[0009] Preferably, a universal adjustment bearing seat 1 is installed on the middle position of the front and rear inner walls of the universal adjustment tray load-bearing arm 1, and a universal adjustment shaft 1 connected to the load-bearing bearing tray is installed on the universal adjustment bearing seat 1.

[0010] Preferably, a universal adjustment bearing seat 2 is installed on the middle position of the inner wall on both sides of the universal adjustment tray load-bearing arm 2, and a universal adjustment shaft 2 connected to the universal adjustment tray load-bearing arm 1 is installed on the universal adjustment bearing seat 2.

[0011] Preferably, the central axes of the universal adjustment shaft 1 and the universal adjustment shaft 2 intersect and are perpendicular to each other.

[0012] Preferably, the power transmission vertical shaft can be up to tens of meters high and perpendicular to the ground. The upper end detail of the vertical shaft is sleeved in the central concentric bearing and load-bearing bearing of the universal balancing tray at the top of the tower, and the lower end detail of the vertical shaft is sleeved in the central concentric bearing and load-bearing bearing of the universal balancing tray at the bottom of the tower.

[0013] Preferably, a generator is provided at the bottom of the windmill tower, an automatic speed gearbox is connected to the transmission shaft of the generator, the power transmission vertical shaft is connected to the automatic speed gearbox, and the universal balancing tray is located above the automatic speed gearbox and the generator.

[0014] Preferably, the windmill blade supports are located outside the power transmission vertical shaft, and there are at least three or more groups of windmill blade supports.

[0015] Preferably, all the wind turbine blade support groups must be equiangular, equilateral, and of equal length, and the weight balance at the corresponding two ends of the outer side of the power transmission vertical shaft must be equal.

[0016] Beneficial effects of the utility model:

[0017] When the wind blows and the windmill tower swings, the universal adjustment shaft and the universal adjustment bearing seat in the universal balance trays at the upper and lower ends of the windmill tower automatically move and adjust to release the deviation kinetic energy, and the thin shafts at both ends of the power transmission vertical shaft always maintain the same concentric axis position.

[0018] The device has a compact structure, is sturdy and practical, and can completely filter out damage to the bearings at both ends of the power transmission vertical shaft caused by the swing deviation of the tower top. There is no need to set up additional protective devices. The swing deviation of the tower top in any direction is completely filtered out, and the concentric bearings and load-bearing bearings at both ends of the power transmission vertical shaft are protected to the maximum extent. It operates smoothly and safely, maximizes the use area of ​​the windmill blades, and greatly improves the utilization rate of wind energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic diagram of a vertical axis wind turbine wind turbine balance control device proposed by the utility model;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a power transmission vertical shaft and a universal balancing tray of a vertical axis wind turbine wind turbine balancing control device proposed by the utility model;

[0021] Figure 3 The utility model provides a schematic top view of the three-dimensional structure of a universal balancing tray of a vertical axis wind turbine wind turbine balancing control device.

[0022] In the figure: 1. windmill tower; 2. power transmission vertical shaft; 3. windmill blade bracket; 4. automatic speed change gear box; 5. generator; 6. universal balance tray; 7. load-bearing bearing; 8. load-bearing bearing tray; 9. universal adjustment shaft 1; 10. universal adjustment bearing seat 1; 11. universal adjustment tray load-bearing arm 1; 12. universal adjustment tray load-bearing arm 2; 13. universal adjustment shaft 2; 14. universal adjustment bearing seat 2. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-3 A vertical axis wind turbine wind turbine balance control device comprises a wind turbine tower 1, a power transmission vertical shaft 2, a wind turbine blade bracket 3 and a universal balance tray 6. The wind turbine tower 1 is composed of a horizontal beam and a vertical beam. The upper universal balance tray 6 is installed in the center of the upper horizontal beam of the wind turbine tower. The lower universal balance tray 6 is installed in the center of the lower horizontal beam of the wind turbine tower. The power transmission vertical shaft 2 is installed perpendicular to the ground between the upper and lower universal balance trays 6. The wind turbine blade bracket 3 is installed on the outside of the power transmission vertical shaft 2. By providing two universal balance trays 6, the purpose of controlling the balance of the power transmission vertical shaft 2 can be achieved.

[0025] In this embodiment, the universal balancing tray 6 includes a universal adjustment tray load-bearing arm 2 12, a universal adjustment tray load-bearing arm 1 11 is arranged in the universal adjustment tray load-bearing arm 2 12, and a load-bearing bearing tray 8 is arranged in the universal adjustment tray load-bearing arm 11, a load-bearing bearing tray 8 is installed on the load-bearing bearing tray 8, and the power transmission vertical shaft 2 is connected to the load-bearing bearing 7, and a universal adjustment bearing seat 10 is installed at the middle position of the front and rear inner walls of the universal adjustment tray load-bearing arm 11, and a universal adjustment shaft connected to the load-bearing bearing tray 8 is installed on the universal adjustment bearing seat 10 9. Universally adjustable bearing seats 14 are installed in the middle of the inner walls of both sides of the universally adjustable tray bearing arm 12, and universally adjustable shafts 13 connected to the universally adjustable tray bearing arm 11 are installed on the universally adjustable bearing seats 14. When the wind turbine tower 1 swings, the universal adjustment shafts and universal adjustment bearing seats in the universal balance trays 6 at the upper and lower ends of the wind turbine tower 1 automatically move and adjust to release the deviation kinetic energy, and the thin shafts at both ends of the power transmission vertical shaft 2 always maintain the coaxial axis position unchanged, and the central axes of the universal adjustment shaft 9 and the universal adjustment shaft 13 are intersecting and perpendicular to each other.

[0026] In this embodiment, the power transmission vertical shaft 2 can be up to tens of meters high and is perpendicular to the ground. The upper end detail of the vertical shaft is mounted in the central concentric bearing and the load-bearing bearing of the universal balancing tray 6 at the top of the tower, and the lower end detail of the vertical shaft is mounted in the central concentric bearing and the load-bearing bearing of the universal balancing tray 6 at the bottom of the tower. A generator 5 is provided at the bottom of the windmill tower 1, and an automatic speed change gear box 4 is connected to the transmission shaft of the generator 5. The power transmission vertical shaft 2 is connected to the automatic speed change gear box 4, and the universal balancing tray 6 is located above the automatic speed change gear box 4 and the generator 5.

[0027] In this embodiment, the windmill blade brackets 3 are located outside the power transmission vertical shaft 2. There are at least three or more windmill blade brackets 3. All three groups of windmill blade brackets must have equal angles, equal sides, and equal lengths. The corresponding two ends of the outer side of the power transmission vertical shaft 2 have equal weight balance.

[0028] In the utility model, when the wind blows the windmill tower 1 to swing, the universal adjustment shaft and the universal adjustment bearing seat in the universal balance tray 6 at the upper and lower ends of the windmill tower 1 are automatically displaced and adjusted to release the deviation kinetic energy, and the thin shafts at both ends of the power transmission vertical shaft 2 always keep the concentric shaft position unchanged. The device has a compact structure, is firm and practical, and completely filters out the damage to the bearings at both ends of the power transmission vertical shaft 2 caused by the swing deviation of the tower top. There is no need to set up additional protective devices. The swing deviation in any direction of the tower top is completely filtered out, and the concentric bearings and load-bearing bearings at both ends of the power transmission vertical shaft are protected to the maximum extent. The operation is stable and safe, and the use area of ​​the windmill blades is increased to the maximum extent, which greatly improves the utilization rate of wind energy.

[0029] The above is a detailed introduction to a vertical axis wind turbine wind turbine balance control device provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A vertical axis wind turbine wind turbine balance control device, characterized in that: It comprises a windmill tower (1), a power transmission vertical shaft (2), a windmill blade support (3) and a universal balancing tray (6), wherein the windmill tower (1) is composed of a horizontal beam and a vertical beam; The upper universal balancing tray (6) is installed at the center of the upper crossbeam of the wind turbine tower, and the lower universal balancing tray (6) is installed at the center of the lower crossbeam of the wind turbine tower. The power transmission vertical shaft (2) is installed perpendicular to the ground between the upper and lower universal balancing trays (6); The windmill blade support (3) is installed on the outside of the power transmission vertical shaft (2).

2. A vertical axis wind turbine wind turbine balance control device according to claim 1, characterized in that: The universal balancing tray (6) comprises a universal adjustment tray load-bearing arm 2 (12), a universal adjustment tray load-bearing arm 1 (11) is arranged inside the universal adjustment tray load-bearing arm 2 (12), and a load-bearing bearing tray (8) is arranged inside the universal adjustment tray load-bearing arm 1 (11).

3. A vertical axis wind turbine wind turbine balance control device according to claim 2, characterized in that: The load-bearing bearing tray (8) is provided with a load-bearing bearing (7), and the power transmission vertical shaft (2) is connected to the load-bearing bearing (7).

4. A vertical axis wind turbine wind turbine balance control device according to claim 2, characterized in that: A universal adjustment bearing seat (10) is installed at the middle position of the front and rear inner walls of the universal adjustment tray load-bearing arm (11), and a universal adjustment shaft (9) connected to the load-bearing bearing tray (8) is installed on the universal adjustment bearing seat (10).

5. A vertical axis wind turbine wind turbine balance control device according to claim 2, characterized in that: A universal adjustment bearing seat 2 (14) is installed at the middle position of the inner wall on both sides of the universal adjustment tray load-bearing arm 2 (12), and a universal adjustment shaft 2 (13) connected to the universal adjustment tray load-bearing arm 1 (11) is installed on the universal adjustment bearing seat 2 (14).

6. A vertical axis wind turbine wind turbine balance control device according to claim 4, characterized in that: The central axes of the universal adjustment shaft 1 (9) and the universal adjustment shaft 2 (13) intersect and are perpendicular to each other.

7. A vertical axis wind turbine balance control device according to claim 1, characterized in that: The power transmission vertical shaft (2) can be up to several tens of meters high and is perpendicular to the ground. The upper end of the vertical shaft is sleeved in the central concentric bearing and the load-bearing bearing (7) of the universal balancing tray (6) at the top of the tower, and the lower end of the vertical shaft is sleeved in the central concentric bearing and the load-bearing bearing (7) of the universal balancing tray (6) at the bottom of the tower.

8. A vertical axis wind turbine balance control device according to claim 1, characterized in that: A generator (5) is provided at the bottom of the wind turbine tower (1); an automatic speed change gear box (4) is connected to the transmission shaft of the generator (5); a power transmission vertical shaft (2) is connected to the automatic speed change gear box (4); and a universal balancing tray (6) is located above the automatic speed change gear box (4) and the generator (5).

9. A vertical axis wind turbine balance control device according to claim 1, characterized in that: The windmill blade supports (3) are located outside the power transmission vertical shaft (2), and there are at least three or more windmill blade supports (3).

10. A vertical axis wind turbine balance control device according to claim 9, characterized in that: All the windmill blade bracket (3) groups must be of equal angles, equal sides and equal lengths, and the weight balance of the corresponding two ends of the outer side of the power transmission vertical shaft (2) must be equal.

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