Novel tower bottom axial flow fan support of wind generating set

Abstract

The utility model relates to the technical field of wind power generation equipment, in particular to a novel tower bottom axial flow fan support of a wind generating set, which comprises a base, side plates are fixed on two sides of the top end of the outer wall of the base, and an axial flow fan body is arranged above the top end of the outer wall of the base. The motor supporting seat, the upper positioning block and the arc-shaped upper pressing seat are arranged on the base, and mounting components used for fixedly mounting the axial flow fan body are arranged on the base and the side plates, so that the axial flow fan body can be stably fixed on the base under the matching action of the motor supporting seat, the upper positioning block and the arc-shaped upper pressing seat; and vibration transmitted to the base by the axial flow fan body can be buffered by arranging a rubber pad and a damping pad, the strength of the base can be enhanced by arranging a reinforcing plate, and the first-order frequency is improved and resonance is avoided by changing the structural form of the support and the fixing mode of the axial flow fan body.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation equipment, in particular to a novel tower bottom axial flow fan bracket of a wind power generator set. Background Art

[0002] Axial flow fan is a common type of fan, also known as axial flow fan. Its working principle is to draw in and discharge the gas in the axial direction through the impeller, thereby generating airflow. Axial flow fans are usually used in situations where large airflow and lower pressure are required.

[0003] Existing axial flow fan bracket for wind turbine generator (as shown in the attached manual) Figure 1 As shown in the figure, it adopts a cantilever beam-like support method. The first-order frequency is within the operating frequency range of the axial flow fan, which can easily cause resonance, resulting in excessive vibration intensity of the axial flow fan body, easy wear of the bearing, and thus easy damage to the axial flow fan. Therefore, there are certain shortcomings.

[0004] In summary, it is necessary to invent a new type of axial flow fan bracket at the bottom of the tower of a wind turbine generator set. Utility Model Content

[0005] To this end, the utility model provides a novel tower bottom axial flow fan bracket for a wind turbine generator set to solve the problem that the vibration intensity of the axial flow fan body is too large and the bearing is easy to be damaged.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of axial flow fan support at the bottom of the tower of a wind turbine generator set, comprising a base, side panels are fixed on both sides of the top of the outer wall of the base, an axial flow fan body is arranged above the top of the outer wall of the base, and mounting components for fixing the axial flow fan body are arranged on the base and the side panels.

[0007] Preferably, the mounting component comprises a motor support seat, and an arc-shaped groove is provided at the bottom end of the outer wall of the axial flow fan body and the top end of the outer wall of the motor support seat for abutment.

[0008] Preferably, a mounting base is integrally fixed to the bottom end of the outer wall of the motor support seat, the bottom end of the outer wall of the mounting base is fixed to the top end of the outer wall of the base by bolts, and a reinforcing plate is fixed at the inner center of the base.

[0009] Preferably, the mounting component also includes a plug-in steel plate, which is arranged above the top of the outer wall of the axial flow fan body, and an upper positioning block is arranged on the outer wall of the plug-in steel plate and at a position corresponding to the axial flow fan body, and slots for the plug-in steel plate to pass through are opened on both sides of the outer wall of the upper positioning block.

[0010] Preferably, an arc-shaped upper pressure seat is provided at the bottom end of the outer wall of the upper positioning block and located above the axial flow fan body. The bottom end of the outer wall of the arc-shaped upper pressure seat abuts against the top end of the outer wall of the axial flow fan body through an arc-shaped groove. The top end of the outer wall of the arc-shaped upper pressure seat and the four corners of the upper positioning block are rotatably connected with adjusting screws.

[0011] Preferably, threaded holes are formed at the upper and lower ends of the outer wall of the upper positioning block and at positions corresponding to the adjusting screw, the outer wall of the adjusting screw is threadedly connected to the inner wall of the threaded hole at the corresponding position, and the upper end of the outer wall of the adjusting screw passes through the threaded hole and is threadedly connected with a locking nut.

[0012] Preferably, square avoidance grooves are provided on both sides of the outer wall of the side plate and at positions corresponding to the plug-in steel plates, and both ends of the outer wall of the plug-in steel plate are slidably connected to the inner wall of the square avoidance groove.

[0013] Preferably, side fixing plates are fixed on both sides of the outer wall of the side plate and below the square avoidance groove, the plug-in steel plate and the side fixing plate are fixed at corresponding positions by bolts, and a rubber pad is placed between the plug-in steel plate and the side fixing plate.

[0014] The beneficial effects of the utility model are:

[0015] In the utility model, the axial flow fan body can be stabilized on the base through the cooperation of the motor support seat, the upper positioning block and the arc-shaped upper pressure seat, and the vibration transmitted from the axial flow fan body to the base can be buffered by the rubber pads and shock-absorbing pads. The strength of the base can be enhanced by the reinforcement plate. By changing the bracket structure and the fixing method of the axial flow fan body, the first-order frequency can be increased to avoid resonance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an axial flow fan bracket for an existing wind turbine;

[0017] Figure 2 This is a schematic diagram of the overall installation structure of the utility model in the front view direction;

[0018] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a partial three-dimensional structural schematic diagram of the base and the reinforcing plate in the utility model in a top view;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the upper positioning block and the arc-shaped upper pressure seat in the utility model.

[0021] In the figure: 100, base; 101, reinforcement plate; 110, side plate; 200, motor support base; 210, mounting base; 300, axial flow fan body; 400, plug-in steel plate; 410, side fixing plate; 420, upper positioning block; 430, arc-shaped upper pressure seat; 440, adjusting screw; 441, locking nut. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] See attached Figure 2-5 The utility model provides a novel tower bottom axial flow fan support for a wind turbine generator set, including a base 100, side panels 110 are fixed on both sides of the top of the outer wall of the base 100, a reinforcing plate 101 is fixed at the inner center of the base 100, and the reinforcing plate 101 can enhance the bottom support strength of the base 100, an axial flow fan body 300 is arranged above the top of the outer wall of the base 100, and mounting components for fixing the axial flow fan body 300 are arranged on the base 100 and the side panels 110, and the mounting components include a motor support seat 200, and an arc groove is provided at the bottom end of the outer wall of the axial flow fan body 300 and abutted against the top end of the outer wall of the motor support seat 200, and a mounting base 210 is fixed to the bottom end of the outer wall of the motor support seat 200. The bottom end of the outer wall of the base 210 is fixed to the top end of the outer wall of the base 100 by bolts. Specifically, a person can place a layer of shock-absorbing pad between the installation base 210 and the connection end of the base 100, and then the installation base 210 can be fixed to the top end of the outer wall of the base 100 by bolts, and the set motor support base 200 can support the bottom end of the outer wall of the axial flow fan body 300 to ensure the stability of the axial flow fan body 300 during installation. At the same time, an extension plate can be set at the front end of the outer wall of the motor support base 200 and located on the front side of the axial flow fan body 300, and the extension plate can be fixed to the bottom end of the outer wall of the axial flow fan body 300 by bolts, thereby ensuring the stability of the connection between the motor support base 200 and the axial flow fan body 300;

[0024] The installation component also includes a plug-in steel plate 400, which is arranged above the top of the outer wall of the axial flow fan body 300. An upper positioning block 420 is arranged on the outer wall of the plug-in steel plate 400 and at a position corresponding to the axial flow fan body 300. Slots for the plug-in steel plate 400 to pass through are opened on both sides of the outer wall of the upper positioning block 420. The plug-in steel plate 400 can pass through the upper positioning block 420 through the slots. The lower end of the outer wall of the upper positioning block 420 and located at the axial flow fan body 30 0 is provided with an arc-shaped upper pressure seat 430, and the bottom end of the outer wall of the arc-shaped upper pressure seat 430 abuts against the top end of the outer wall of the axial flow fan body 300 through the arc-shaped groove, and the arc-shaped upper pressure seat 430 can abut against the top end of the outer wall of the axial flow fan body 300 through the arc-shaped groove, and the position of the arc-shaped upper pressure seat 430 is subsequently fixed, so that the arc-shaped upper pressure seat 430 can cooperate with the motor support seat 200 to clamp and fix the axial flow fan body 300, and the arc-shaped upper pressure seat 430 The top of the outer wall of the pressure seat 430 and the four corners of the upper positioning block 420 are rotatably connected with adjusting screws 440, and threaded holes are penetrated at the upper and lower ends of the outer wall of the upper positioning block 420 and at the corresponding positions of the adjusting screws 440. The outer walls of the adjusting screws 440 are threadedly connected to the inner walls of the threaded holes at the corresponding positions, and the upper ends of the outer walls of the adjusting screws 440 pass through the threaded holes and are threadedly connected with locking nuts 441. Specifically, the personnel can rotate the adjusting screws 440 so that the adjusting screws 440 can drive the arc-shaped upper pressure seat 430 to move up and down through the threaded connection between the upper positioning block 420, so that the arc-shaped upper pressure seat 430 can press the axial flow fan body 300 to keep it stable, and the upper end of the adjusting screws 440 can be connected with a handle to facilitate the personnel to rotate the adjusting screws 440, and the threaded locking nuts 441 are used to improve the stability of the connection between the adjusting screws 440 and the upper positioning block 420 to ensure the fixing effect;

[0025] Square avoidance grooves are provided on both sides of the outer wall of the side panel 110 and at positions corresponding to the plug-in steel plate 400. Both ends of the outer wall of the plug-in steel plate 400 are slidably connected to the inner wall of the square avoidance groove. The square avoidance groove is provided to allow both ends of the plug-in steel plate 400 to pass through the outer wall of the side panel 110. Side fixing plates 410 are fixed on both sides of the outer wall of the side panel 110 and below the square avoidance groove. The plug-in steel plate 400 and the side fixing plate 410 are fixed at corresponding positions by bolts. A rubber pad is placed between the plug-in steel plate 400 and the side fixing plate 410, and personnel can fix both ends of the plug-in steel plate 400 to the side fixing plate 410 by bolts and nuts, thereby ensuring the stability of the plug-in steel plate 400. The rubber pad is provided to improve the buffering effect of the end of the plug-in steel plate 400 and ensure the stability of the connection between the plug-in steel plate 400 and the side fixing plate 410.

[0026] The use process of the utility model is as follows: first, the personnel can move the base 100 after the side panel 110 is fixed to the position of the axial flow fan body 300 in the fan generator set by bolts or welding, and then fix the base 100 and the side panel 110 to the installation point through the connecting plate fixed on the top of the side panel 110 and the screw holes opened in other places, and then take out the motor support seat 200, and then place the shock-absorbing pad at the bottom end of the installation base 210 and fix the installation base 210 and the top of the outer wall of the base 100 by bolts. After completion, the personnel can carry the axial flow fan body 300 and place it on the top of the motor support seat 200 for placement, and then fix the motor support seat 200 by bolts. The front end of 00 is locked and fixed with the bottom of the front end of the outer wall of the axial flow fan body 300. After completion, the personnel can take out the plug-in steel plate 400 and insert one end of the plug-in steel plate 400 through the square avoidance groove. Then, before insertion, the personnel can place the arc-shaped upper pressure seat 430 and the upper positioning block 420 on the top of the outer wall of the axial flow fan body 300 and at the corresponding position of the plug-in steel plate 400, so that the insertion end of the plug-in steel plate 400 can pass through the slot to fix the upper positioning block 420, and then pass through the square avoidance groove opened at the other end. Then, the personnel can use bolts and nuts to fix the two ends of the plug-in steel plate 400 with the side fixing plate 410, so that the position of the plug-in steel plate 400 can be fixed;

[0027] After the fixation is completed, the personnel can rotate the adjusting screw 440 by the handle, so that the adjusting screw 440 can drive the arc-shaped upper pressure seat 430 to move through the cooperation of the threaded connection between the upper positioning blocks 420, so that the arc-shaped upper pressure seat 430 can move downward to press the top of the axial flow fan body 300. After completion, it can be locked and fixed by rotating the locking nut 441.

[0028] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A novel tower-bottom axial flow fan support for a wind turbine generator set, comprising a base (100), side plates (110) being fixed to both sides of the top of the outer wall of the base (100), an axial flow fan body (300) being arranged above the top of the outer wall of the base (100), characterized in that: The base (100) and the side plate (110) are provided with mounting components for fixing the axial flow fan body (300), and the mounting components also include a plug-in steel plate (400), and the plug-in steel plate (400) is arranged above the top of the outer wall of the axial flow fan body (300), and an upper positioning block (420) is arranged on the outer wall of the plug-in steel plate (400) and at a position corresponding to the axial flow fan body (300), and the outer wall of the upper positioning block (420) is provided with a plurality of holes. There is a slot for the plug-in steel plate (400) to pass through, and an arc-shaped upper pressure seat (430) is arranged at the bottom end of the outer wall of the upper positioning block (420) and above the axial flow fan body (300). The bottom end of the outer wall of the arc-shaped upper pressure seat (430) is abutted against the top end of the outer wall of the axial flow fan body (300) through an arc-shaped groove, and the top end of the outer wall of the arc-shaped upper pressure seat (430) and the four corners of the upper positioning block (420) are rotatably connected with adjusting screws (440).

2. The novel axial flow fan support at the bottom of the wind turbine generator set according to claim 1 is characterized in that: The mounting component comprises a motor support seat (200), and an arc-shaped groove is provided at the bottom end of the outer wall of the axial flow fan body (300) and abuts against the top end of the outer wall of the motor support seat (200).

3. The novel axial flow fan support at the bottom of the wind turbine generator set according to claim 2 is characterized in that: A mounting base (210) is integrally fixed to the bottom end of the outer wall of the motor support seat (200), the bottom end of the outer wall of the mounting base (210) is fixed to the top end of the outer wall of the base (100) by bolts, and a reinforcing plate (101) is fixed at the inner center of the base (100).

4. The novel axial flow fan support at the bottom of a wind turbine generator set according to claim 1 is characterized in that: Threaded holes are provided through the upper and lower ends of the outer wall of the upper positioning block (420) and at positions corresponding to the adjusting screw (440). The outer wall of the adjusting screw (440) is threadedly connected to the inner wall of the threaded hole at the corresponding position. The upper end of the outer wall of the adjusting screw (440) passes through the threaded hole and is threadedly connected to a locking nut (441).

5. The novel axial flow fan support at the bottom of a wind turbine generator set according to claim 1 is characterized in that: Square avoidance grooves are provided on both sides of the outer wall of the side plate (110) and at positions corresponding to the plug-in steel plate (400), and both ends of the outer wall of the plug-in steel plate (400) are slidably connected to the inner wall of the square avoidance groove.

6. The novel axial flow fan support at the bottom of the wind turbine generator set according to claim 5 is characterized in that: Side fixing plates (410) are fixed on both sides of the outer wall of the side plate (110) and below the square avoidance groove, the plug-in steel plate (400) and the side fixing plate (410) are fixed at corresponding positions by bolts, and a rubber pad is placed between the plug-in steel plate (400) and the side fixing plate (410).

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