Shock absorption device for base of wind driven generator

Abstract

The utility model discloses a wind driven generator base damping device which comprises a tower pole, a base, an annular plate and ground inserts, the base is fixedly installed at the bottom end of the tower pole, the ground inserts are arranged at the two ends of the base, reinforcing plates are fixedly installed on the two sides of the bottom end of the tower pole, and angle steel is arranged between one side of each reinforcing plate and the upper surface of the base. The two ends of the angle steel are fixedly connected with the reinforcing plate and the base through screws correspondingly, the two sides of the outer surface of the lower end of the tower rod are sleeved with annular plates, one ends of the two annular plates are connected through a hinge, and mounting bases are fixedly welded to the other ends of the two annular plates correspondingly and fixedly connected through bolts. The outer surface of the bottom end of the tower pole is sleeved with the annular plate, the bottom stability of the tower pole is improved, meanwhile, the telescopic damping rod is arranged on the inner side wall of the annular plate, the outer surface of the telescopic damping rod is sleeved with the spring, and the arc-shaped protection plate is fixedly installed at one end of the telescopic damping rod. And the damping effect on the bottom of the tower pole is achieved through mutual cooperation.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a wind power generator base shock absorbing device. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of components such as a wind wheel, a generator, a direction regulator, a tower, a speed limit safety mechanism and an energy storage device. The working principle of a wind turbine is relatively simple. The wind wheel rotates under the action of wind force, and it converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates and generates electricity driven by the wind wheel shaft.

[0003] There are no protective measures for the base of existing wind power generation equipment. During the operation of the wind turbine, its vibration will cause problems such as loose connections between base parts and tilting of the base. At the same time, the wind turbine is large in size and the tower needs to withstand huge wind force, which often causes the bottom of the wind turbine to loosen and be damaged, thus affecting its service life. Utility Model Content

[0004] The purpose of the utility model is to provide a wind turbine base shock absorbing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine base shock absorbing device, comprising a tower pole, a base, an annular plate and a ground plug, the bottom end of the tower pole is fixedly installed with a base, both ends of the base are provided with ground plugs, both sides of the bottom end of the tower pole are fixedly installed with reinforcing plates, an angle steel is arranged between one side of the reinforcing plate and the upper surface of the base, the two ends of the angle steel are respectively fixedly connected to the reinforcing plate and the base by screws, annular plates are sleeved on both sides of the outer surface of the lower end of the tower pole, one end of the two annular plates are connected by a hinge, and the other ends of the two annular plates are fixedly welded with mounting seats, and the mounting seats are fixedly connected by bolts.

[0006] As a preferred technical solution of the utility model, a plurality of grooves are opened on the inner wall of the annular plate, a telescopic damping rod is fixedly installed in each of the grooves, and a spring is sleeved on the outer surface of each telescopic damping rod, and an arc-shaped protective plate is fixedly connected to the end of the telescopic damping rod away from the groove.

[0007] As a preferred technical solution of the utility model, a plurality of shock-absorbing mechanisms are arranged between the outer wall of the annular plate and the base, and the shock-absorbing mechanism includes a fixed seat, a first connecting rod, a shock-absorbing spring and a second connecting rod. Four fixed seats are fixedly installed on the outer surface of the annular plate, and each of the fixed seats and one end of the first connecting rod are movably connected through a rotating shaft, and a shock-absorbing spring is fixedly connected between the first connecting rod and the second connecting rod.

[0008] As a preferred technical solution of the utility model, a guide cylinder is provided between the angle steel on the upper surface of the base and the ground plug, a telescopic energy absorbing rod is provided inside the guide cylinder, a sliding block is fixedly installed on the top of the telescopic energy absorbing rod, a compression spring is provided on the outside of the telescopic energy absorbing rod, and the two ends of the compression spring are fixedly connected with a sliding block and a guide cylinder respectively.

[0009] As a preferred technical solution of the utility model, one end of the second connecting rod away from the shock absorbing spring is rotatably connected to the top end of the sliding block through a rotating shaft.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model has a simple structure and good stability. An annular plate is sleeved on the outer surface of the bottom end of the tower pole to increase the bottom stability of the tower pole. At the same time, a telescopic damping rod is arranged on the inner wall of the annular plate. A spring is sleeved on the outer surface of the telescopic damping rod and an arc-shaped protective plate is fixedly installed on one end of the telescopic damping rod. Through the coordinated use of the two, the bottom of the tower pole can be shock-absorbing.

[0012] 2. Through the coordinated use of the shock-absorbing mechanism, the fixed seat, the first connecting rod, the shock-absorbing spring, the second connecting rod, the guide cylinder, the telescopic energy-absorbing rod, the sliding block and the compression spring, the bottom of the tower pole can be shock-absorbing and buffered. The reinforcing plate can enhance the supporting effect of the tower pole and protect the electrical equipment under the tower pole. The shock-absorbing mechanism can conduct and dissipate the vibration energy, and the compression energy-absorbing effect of the compression spring and the telescopic performance rod can be used to reduce the vibration kinetic energy, thereby further reducing the vibration and improving the stability of the tower pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the annular plate of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of Figure A of the present utility model;

[0016] Figure 4It is a schematic diagram of the structure of the shock absorbing mechanism of the utility model.

[0017] In the figure: 1. tower pole; 2. base; 3. shock absorbing mechanism; 31. fixed seat; 32. first connecting rod; 33. shock absorbing spring; 34. second connecting rod; 35. guide cylinder; 36. telescopic energy absorbing rod; 37. sliding block; 38. compression spring; 4. annular plate; 41. mounting seat; 42. bolt; 5. reinforcing plate; 6. angle steel; 7. screw; 8. ground plug; 9. arc protective plate; 10. groove; 11. telescopic damping rod; 12. spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0019] See also Figure 1-4 The utility model provides a technical solution: a wind turbine base shock absorbing device, including a tower 1, a base 2, an annular plate 4 and a ground plug 8. The bottom end of the tower 1 is fixedly installed with the base 2, and both ends of the base 2 are provided with ground plugs 8. Reinforcement plates 5 are fixedly installed on both sides of the bottom end of the tower 1, and an angle steel 6 is arranged between one side of the reinforcement plate 5 and the upper surface of the base 2. The two ends of the angle steel 6 are fixedly connected to the reinforcement plate 5 and the base 2 by screws 7 respectively. Annular plates 4 are sleeved on both sides of the outer surface of the lower end of the tower 1, and one end of the two annular plates 4 is connected by a hinge, and the other ends of the two annular plates 4 are fixedly welded with mounting seats 41, and the mounting seats 41 are fixedly connected by bolts 42.

[0020] In this embodiment, a plurality of grooves 10 are provided on the inner wall of the annular plate 4, a telescopic damping rod 11 is fixedly installed in each groove 10, and a spring 12 is sleeved on the outer surface of each telescopic damping rod 11, and an arc-shaped protective plate 9 is fixedly connected to one end of the telescopic damping rod 11 away from the groove 10.

[0021] In this embodiment, a plurality of shock absorbing mechanisms 3 are arranged between the outer wall of the annular plate 4 and the base 2. The shock absorbing mechanism 3 includes a fixed seat 31, a first connecting rod 32, a shock absorbing spring 33 and a second connecting rod 34. Four fixed seats 31 are fixedly installed on the outer surface of the annular plate 4. Each fixed seat 31 and one end of the first connecting rod 32 are movably connected through a rotating shaft. A shock absorbing spring 33 is fixedly connected between the first connecting rod 32 and the second connecting rod 34.

[0022] In this embodiment, a guide cylinder 35 is provided between the angle steel 6 and the ground plug 8 on the upper surface of the base 2, and a telescopic energy absorbing rod 36 is provided in the guide cylinder 35. The telescopic energy absorbing rod 36 is a telescopic energy absorbing rod body structure commonly seen on the market. Since it is a mature prior art product, this specification does not describe its working process in detail.

[0023] A sliding block 37 is fixedly installed on the top of the telescopic energy absorbing rod 36 , and a compression spring 38 is sleeved on the outside of the telescopic energy absorbing rod 36 . The two ends of the compression spring 38 are respectively fixedly connected by the sliding block 37 and the guide cylinder 35 .

[0024] In this embodiment, one end of the second connecting rod 34 away from the shock absorbing spring 33 is rotatably connected to the top end of the sliding block 37 via a rotating shaft.

[0025] When in use, the annular plate 4 is clamped on the outer wall of the tower 1, and the two annular plates 4 are fixedly connected by bolts 42, so that the annular plate 4 fixes and wraps the lower end of the tower 1. This design can improve the stability of the bottom of the tower 1. At the same time, a telescopic damping rod 41 is arranged on the inner wall of the annular plate 4, and a spring 12 is sleeved on the outer surface of the telescopic damping rod 41, and an arc-shaped protective plate 9 is fixedly installed on one end of the telescopic damping rod 41. Through their mutual cooperation, the bottom of the tower 2 is shock-absorbing. Through the mutual cooperation of the set shock-absorbing mechanism 3, the fixed seat 31, the first connecting rod 32, the shock-absorbing spring 33, the second connecting rod 34, the guide cylinder 35, the telescopic energy-absorbing rod 36, the sliding block 37 and the compression spring 38, the bottom of the tower 1 is shock-absorbing and buffered. When the bottom of the tower 1 is shaken by strong wind, The force received is transmitted to the shock-absorbing spring 33 and the second connecting rod 34 through the first connecting rod 32. The shock-absorbing spring 33 can achieve the effect of reducing wind force. When the compression spring 38 is pushed to be compressed by the sliding block 37, the telescopic energy-absorbing rod 36 will be compressed while the sliding block 37 pushes the compression spring 38 to be compressed. Therefore, the energy absorption is absorbed by the compression spring 38 and the telescopic energy-absorbing rod 36 in coordination, so as to further achieve force reduction and improve the shock-absorbing effect. The reinforcing plate 51 can enhance the supporting effect of the tower pole and protect the electrical equipment at the bottom of the tower pole 1. The shock-absorbing mechanism 3 can conduct and dissipate the vibration energy, and the compression spring 38 and the telescopic energy-absorbing rod 36 can be used to reduce the vibration kinetic energy, thereby further reducing the vibration and improving the stability of the tower pole 1.

[0026] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0028] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine base shock absorbing device, characterized in that: The utility model comprises a tower pole (1), a base (2), an annular plate (4) and a ground plug (8), wherein the base (2) is fixedly installed at the bottom end of the tower pole (1), and ground plugs (8) are provided at both ends of the base (2), and reinforcing plates (5) are fixedly installed at both sides of the bottom end of the tower pole (1), and an angle steel (6) is provided between one side of the reinforcing plate (5) and the upper surface of the base (2), and the two ends of the angle steel (6) are respectively fixedly connected to the reinforcing plate (5) and the base (2) by screws (7), and annular plates (4) are sleeved on both sides of the outer surface of the lower end of the tower pole (1), and one end of the two annular plates (4) is connected by a hinge, and the other end of the two annular plates (4) is fixedly welded with a mounting seat (41), and the mounting seats (41) are fixedly connected by bolts (42).

2. The wind turbine base shock absorbing device according to claim 1, characterized in that: A plurality of grooves (10) are provided on the inner side wall of the annular plate (4), a telescopic damping rod (11) is fixedly installed in each of the grooves (10), and a spring (12) is sleeved on the outer surface of each of the telescopic damping rods (11), and an arc-shaped protective plate (9) is fixedly connected to one end of the telescopic damping rod (11) away from the groove (10).

3. The wind turbine base shock absorbing device according to claim 1, characterized in that: A plurality of shock absorbing mechanisms (3) are arranged between the outer wall of the annular plate (4) and the base (2), and the shock absorbing mechanisms (3) include a fixed seat (31), a first connecting rod (32), a shock absorbing spring (33) and a second connecting rod (34). Four fixed seats (31) are fixedly mounted on the outer surface of the annular plate (4), and each of the fixed seats (31) and one end of the first connecting rod (32) are movably connected via a rotating shaft. A shock absorbing spring (33) is fixedly connected between the first connecting rod (32) and the second connecting rod (34).

4. The wind turbine base shock absorbing device according to claim 1, characterized in that: A guide cylinder (35) is provided between the angle steel (6) on the upper surface of the base (2) and the ground plug (8), a telescopic energy absorbing rod (36) is provided inside the guide cylinder (35), a sliding block (37) is fixedly installed on the top of the telescopic energy absorbing rod (36), a compression spring (38) is sleeved on the outside of the telescopic energy absorbing rod (36), and the two ends of the compression spring (38) are respectively fixedly connected with the sliding block (37) and the guide cylinder (35).

5. The wind turbine base shock absorbing device according to claim 3 is characterized in that: One end of the second connecting rod (34) away from the shock absorbing spring (33) is rotatably connected to the top end of the sliding block (37) via a rotating shaft.

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