Rear supporting assembly of wind power generation rack

Abstract

The utility model discloses a rear supporting assembly of a wind power generation rack. The rear supporting assembly comprises an upper supporting cross beam, a lower supporting cross beam and a vertical connecting rod. The upper supporting cross beam supports the top of the wind driven generator frame, the lower supporting cross beam supports the bottom of the wind driven generator frame, and the upper supporting cross beam and the lower supporting cross beam are connected through the vertical connecting rod to form an I-shaped supporting structure for supporting the rear portion of the wind driven generator frame. The vertical connecting rod is of a telescopic elastic force measuring rod structure and comprises a rod body, a pipe body and an elastic force detecting piece, the rod body and the pipe body are axially connected in a sleeved and matched mode, and the rod body and the pipe body are elastically connected through the elastic force detecting piece. According to the rack rear supporting assembly, pressure detection of structural deformation is carried out in real time while the rear portion of the wind driven generator rack is supported, and the structural strength and safety of the wind driven generator rack are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generator frame support, in particular to a wind power generation frame rear support component. Background Art

[0002] The wind turbine frame is the inner support frame of the wind turbine cabin, which is related to the overall structural safety of the wind turbine. The front of the wind turbine frame is connected to the inner wall of the cabin, and the rear of the wind turbine frame is not connected to the inner wall of the cabin, so it needs to be supported by the rear support structure to improve the strength and stability of the support structure. In addition, since the structural deformation of the support is gradually generated, not a sudden large deformation event, it is difficult to accurately judge from the visual point of view, and it is difficult to find hidden dangers in the early stage of support deformation. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a rear support assembly for a wind turbine frame. The rear support assembly supports the rear of the wind turbine frame and performs real-time pressure detection of structural deformation, thereby improving the structural strength and safety of the wind turbine frame.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a rear support assembly for a wind power generation frame, comprising an upper support beam, a lower support beam and a vertical connecting rod; the upper support beam supports the top of the wind turbine frame, the lower support beam supports the bottom of the wind turbine frame, and the vertical connecting rod connects the upper support beam with the lower support beam to form an I-shaped support structure for supporting the rear of the wind turbine frame.

[0005] Furthermore, the vertical connecting rod is a telescopic elastic measuring rod structure, and both ends of the telescopic elastic measuring rod structure are movably connected to the upper supporting beam and the lower supporting beam through hinges respectively.

[0006] Furthermore, the vertical connecting rod comprises a rod body, a tube body and an elastic force detection member, the rod body and the tube body are axially sleeved together, and the rod body and the tube body are elastically connected via the elastic force detection member.

[0007] Furthermore, the number of the vertical connecting rods is double rods connected in parallel between the upper supporting beam and the lower supporting beam.

[0008] Furthermore, the elastic force detection member is a pressure sensor spring arranged in the tube body, and the pressure sensor spring is in an elastically compressed state.

[0009] Furthermore, the upper supporting cross beam and the lower supporting cross beam are both square steel pipes, and the square steel pipes are fastened to the wind turbine generator frame via bolt and nut assemblies flexibly connected to the mounting holes thereof.

[0010] Furthermore, a bushing is embedded in the mounting hole, one end of the bushing shrinks toward the center to form a shrinkage structure, the mounting hole is composed of a large hole and a small hole correspondingly coaxially opened on the square steel pipe, the bushing is pressed into the square steel pipe from the large hole by applying an axial external force until the shrinkage structure docks with the small hole, so that the bushing is deformed and fits tightly with the hole wall of the large hole, and the bolt of the bolt and nut assembly is arranged through the bushing.

[0011] Beneficial effects: The utility model provides support for the rear part of the wind turbine frame through the I-shaped support structure composed of the upper supporting beam and the lower supporting beam connected by the vertical connecting rod, thereby improving the structural strength and stability of the wind turbine frame. When the wind turbine frame undergoes structural deformation, it will drive the I-shaped support structure to deform, causing the vertical connecting rod to lengthen or shorten, thereby changing the pressure on the pressure sensor spring. By detecting the pressure change in real time through the pressure sensor spring, it is possible to more accurately know whether the wind turbine frame has been deformed and the degree of deformation, eliminate hidden dangers in time, and improve the structural strength and safety of the wind turbine frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the rear support assembly of the rack of the utility model;

[0013] Figure 2 This is an embodiment of the utility model in which the frame rear support assembly is installed at the rear of the wind turbine frame;

[0014] Figure 3 It is a partial structural schematic diagram of an upper supporting beam or a lower supporting beam. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] like Figure 1 and Figure 2As shown, a rear support assembly of a wind power generation frame includes an upper support beam 1, a lower support beam 2 and a vertical connecting rod 3; the upper support beam 1 supports the top of the wind turbine frame 6, the lower support beam 2 supports the bottom of the wind turbine frame 6, and the vertical connecting rod 3 connects the upper support beam 1 with the lower support beam 2 to form an I-shaped support structure supporting the rear of the wind turbine frame 6. Since the rear of the wind turbine frame 6 is not connected to the inner wall of the wind power cabin, the I-shaped support structure formed by the upper support beam 1 and the lower support beam 2 connected by the vertical connecting rod 3 in the utility model provides support for the rear of the wind turbine frame 6, thereby improving the structural strength and stability of the wind turbine frame 6. Since the structural deformation of the generator frame 6 is gradually generated, rather than a sudden large deformation event, it is difficult to accurately judge visually, and it is difficult to find hidden dangers in the early stage of bracket deformation. Based on this, the vertical connecting rod 3 of the utility model is a retractable elastic force measuring rod structure, and the two ends of the retractable elastic force measuring rod structure are movably connected to the upper support beam 1 and the lower support beam 2 through the hinge 4. More specifically, the vertical connecting rod 3 includes a rod body 8, a tube body 9 and an elastic elastic force detection member 10, the rod body 8 and the tube body 9 are axially sleeved, and the rod body 8 and the tube body 9 are elastically connected through the elastic elastic force detection member 10, and preferably, the elastic elastic force detection member 10 is a pressure sensor spring arranged in the tube body 9, and the pressure sensor spring is in an elastic compression state. When the wind turbine frame 6 undergoes structural deformation, the I-type supporting structure will be deformed, causing the vertical connecting rod 3 to lengthen or shorten, thereby changing the pressure on the pressure sensor spring. By detecting the pressure change in real time through the pressure sensor spring, it is possible to more accurately know whether the wind turbine frame 6 is deformed and the degree of deformation, eliminate hidden dangers in time, and improve the structural strength and safety of the wind turbine frame.

[0017] The number of vertical connecting rods 3 is at least one, but in order to further improve the accuracy of detecting the deformation of the wind turbine frame 6 through pressure changes, in the utility model, the number of vertical connecting rods 3 is double rods connected in parallel between the upper supporting beam 1 and the lower supporting beam 2, thereby improving the pressure detection coverage range and providing great help in obtaining the accuracy of the deformation of the wind turbine frame 6.

[0018] like Figure 2 As shown, the upper support beam 1 and the lower support beam 2 are both square steel pipes 11, and the square steel pipes 11 are fastened to the wind turbine frame 6 through bolt and nut assemblies 7 flexibly connected in the mounting holes 12 thereof.

[0019] In order to reduce the wear of the bolt and nut assembly 7 on the square steel pipe 11, in the present utility model, as Figure 3As shown, a bushing 5 is embedded in the mounting hole 12, and one end of the bushing 5 shrinks toward the center to form a shrinkage structure 50. The mounting hole 12 is composed of a large hole 12a and a small hole 12b correspondingly coaxially opened on the square steel tube 11. The bushing 5 is pressed into the square steel tube 11 from the large hole 12a by applying an axial external force until the shrinkage structure 50 and the small hole 12b are docked, so that the bushing 5 is deformed and fits tightly with the hole wall of the large hole 12a. The bolts of the bolt and nut assembly 7 are arranged through the bushing 5. The addition of the bushing 5 can greatly reduce the wear of the square steel tube 11, protect the upper support beam 1 and the lower support beam 2, and improve its structural safety.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rear support assembly for a wind power generation rack, characterized in that: It comprises an upper support beam (1), a lower support beam (2) and a vertical connecting rod (3); the upper support beam (1) supports the top of a wind turbine frame (6), the lower support beam (2) supports the bottom of the wind turbine frame (6), and the vertical connecting rod (3) connects the upper support beam (1) and the lower support beam (2) to form an I-shaped support structure supporting the rear of the wind turbine frame (6).

2. A wind power generation rack rear support assembly according to claim 1, characterized in that: The vertical connecting rod (3) is a telescopic elastic measuring rod structure, and the two ends of the telescopic elastic measuring rod structure are movably connected to the upper supporting crossbeam (1) and the lower supporting crossbeam (2) through hinges (4) respectively.

3. A wind power generation rack rear support assembly according to claim 2, characterized in that: The vertical connecting rod (3) comprises a rod body (8), a tube body (9) and an elastic force detection member (10); the rod body (8) and the tube body (9) are axially sleeved together, and the rod body (8) and the tube body (9) are elastically connected via the elastic force detection member (10).

4. A wind power generation frame rear support assembly according to claim 3, characterized in that: The number of the vertical connecting rods (3) is double rods connected in parallel between the upper supporting crossbeam (1) and the lower supporting crossbeam (2).

5. The rear support assembly of a wind power generation rack according to claim 3, characterized in that: The elastic force detection member (10) is a pressure sensor spring arranged in the tube body (9), and the pressure sensor spring is in an elastically compressed state.

6. A wind power generation frame rear support assembly according to claim 1, characterized in that: The upper support beam (1) and the lower support beam (2) are both square steel pipes (11), and the square steel pipes (11) are fastened to the wind turbine generator frame (6) via bolt and nut assemblies (7) flexibly connected to the mounting holes (12) thereof.

7. A wind power generation rack rear support assembly according to claim 6, characterized in that: A bushing (5) is embedded in the mounting hole (12), one end of the bushing (5) shrinks toward the center to form a shrinkage structure (50), the mounting hole (12) is composed of a large hole (12a) and a small hole (12b) coaxially opened on the square steel tube (11), the bushing (5) is pressed into the square steel tube (11) from the large hole (12a) by applying an axial external force until the shrinkage structure (50) and the small hole (12b) are connected, so that the bushing (5) is deformed and fits tightly with the hole wall of the large hole (12a), and the bolts of the bolt and nut assembly (7) are arranged through the bushing (5).

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