Adjustable variable pitch limiting support of wind generating set

Abstract

The utility model discloses a wind generating set adjustable variable pitch limiting support which comprises a bottom plate, two symmetrical moving seats are connected to the upper end face of the bottom plate in a sliding mode, supporting plates are fixedly connected to the upper end faces of the moving seats, a mounting plate is jointly and movably connected between the two supporting plates, and an adjusting column is fixedly connected to the lower end face of the mounting plate. A plurality of evenly-distributed tooth grooves are formed in the adjusting column, a fixing frame is fixedly connected to the upper end face of the bottom plate, a positioning plate is fixedly connected to one side of the fixing frame, a forward and reverse motor is fixedly connected to the upper end face of the positioning plate, and a rotating shaft is connected to the output end of the forward and reverse motor. The use position of the mounting plate can be movably adjusted, under the action of a forward and reverse motor, a rotating shaft drives a gear to be meshed with a tooth groove in an adjusting column, the use height of the mounting plate can be adjusted, the mounting plate can be flexibly adjusted and used, and the use effect of the variable pitch limiting support is improved; and rapid adjustment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of operation and maintenance of a wind turbine generator set, in particular to an adjustable variable pitch position limiting bracket for a wind turbine generator set. Background Art

[0002] With the continuous development of new energy, wind power generation has received more and more attention. For wind turbines, the availability of the unit and reducing its failure rate are very important. During the power generation process, since the wind force is changing, it is necessary to adjust the blades to keep the blade speed constant to ensure the stability of the power generation process. Among them, the limit switch plays a very important role in the safety control of variable pitch and power generation.

[0003] According to a Chinese patent document with the announcement number CN218206911U, an adjustable variable pitch limit bracket for a wind turbine generator set is disclosed, which includes: an upper bracket including a limit switch positioning hole; a lower bracket including an adjustment hole and a fixing member, the upper bracket and the lower bracket are slidably connected, and the upper bracket and the lower bracket are connected through the fixing member; and a limit device including a longitudinal limit member acting on the upper bracket and a transverse limit member acting on the lower bracket. The original fixed limit bracket is replaced with an adjustable limit bracket to achieve transverse and longitudinal adjustment, thereby improving the unit availability and ensuring the safe operation of the equipment.

[0004] Based on the search of the above-mentioned patents and in combination with the variable pitch limit bracket in the prior art, it was found that the above-mentioned variable pitch limit bracket, when in use, realizes the lateral and longitudinal adjustment of the fixed panel through the cooperation between multiple bolts and nuts, but in the actual use process, once adjustment is required, it is necessary to disassemble and install multiple screws and nuts, and cooperate with the adjustment of the support plate to operate, the process is relatively cumbersome, which increases the difficulty of the staff's work, and in the process of adjustment, the bolts and nuts are frequently twisted, which can easily cause damage to the threads on the bolts and nuts, and even cause thread slippage, which ultimately leads to the problem of ineffective adjustment, thereby reducing practicality. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable pitch limit bracket for a wind turbine generator set. By sliding two movable seats on a base plate, the use position of the mounting plate can be moved and adjusted. Under the action of the forward and reverse motors, the rotating shaft drives the gear to engage with the tooth groove on the adjusting column, so that the use height of the mounting plate can be adjusted. The use of the mounting plate can be flexibly adjusted, thereby improving the use effect of the pitch limit bracket and facilitating rapid adjustment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable pitch limit bracket of a wind turbine generator set, comprising a base plate, the upper end surface of the base plate is slidably connected to two symmetrical moving seats, the upper end surface of the moving seat is fixedly connected to a support plate, a mounting plate is movably connected between the two support plates, an adjusting column is fixedly connected to the lower end surface of the mounting plate, a plurality of evenly distributed tooth grooves are provided on the adjusting column, the upper end surface of the base plate is fixedly connected to a fixing frame, a positioning plate is fixedly connected to one side of the fixing frame, a forward and reverse motor is fixedly connected to the upper end surface of the positioning plate, a rotating shaft is connected to the output end of the forward and reverse motor, the rotating shaft is rotatably connected to the fixing frame, a gear is fixedly connected to the outer wall of the rotating shaft, and the gear meshes with the adjusting column through the tooth groove.

[0007] The beneficial effects of the utility model are as follows: through the movement of the two moving seats, the mounting plates on the two support plates are moved and adjusted, and the rotation of the forward and reverse motors causes the rotating shaft to drive the gear to engage with the tooth grooves on the adjusting column, thereby driving the adjusting column to lift and lower the mounting plate with the adjusting column, which is convenient for controlling the use height of the mounting plate and can be adjusted quickly and flexibly;

[0008] In order to achieve flexible adjustment of the mounting plate and improve the flexibility of use;

[0009] As a further improvement of the above technical solution: two symmetrical sliding grooves are provided on the upper end surface of the base plate, an adjustment groove is provided in the base plate, the adjustment groove is communicated with the sliding groove, a sliding rod is slidably connected in the sliding groove, the sliding rod is fixedly connected to the movable seat, an adjustment plate is slidably connected in the adjustment groove, the adjustment plate is fixedly connected to the sliding rod, a spiral rod is screwed on the adjustment plate, and the spiral rod is rotatably connected to the base plate.

[0010] The beneficial effects of this improvement are: through the use of the slide groove and the slide rod, the movable seat can be ensured to be more stable during the movement and will not shake at will. The screw connection between the adjustment rod and the spiral rod can be used to adjust and move the two slide rods, which is convenient for moving the two movable seats, thereby controlling the use position of the mounting plate;

[0011] In order to adjust the use position of the mounting plate;

[0012] As a further improvement of the above technical solution: the upper surface of the support plate is provided with two symmetrical guide grooves, a guide column is slidably connected in the guide groove, the bottom end of the guide column is fixedly connected to a limiting column, and the guide column is fixedly connected to the mounting plate.

[0013] The beneficial effects of this improvement are as follows: by using the guide groove and the guide column, the lifting and lowering adjustment of the mounting plate can be guided to ensure the stability of the mounting plate during the lifting and lowering process. At the same time, the guide rod is limited by the use of the limit column to prevent the guide rod from being separated from the support plate, thereby improving the safety and stability of the mounting plate during the adjustment process.

[0014] In order to guide the installation plate and ensure the stability of lifting;

[0015] As a further improvement of the above technical solution: a scale is provided on the upper surface of the base plate, and an identification block is fixedly connected to one side of one of the movable seats, and the identification block is slidably connected to the base plate.

[0016] The beneficial effects of this improvement are: through the role of the marking block and the scale, the movement of the base can be accurately grasped, and rapid and accurate movement can be achieved, thereby improving the accuracy of adjustment;

[0017] In order to achieve precise movement and adjustment of the mounting plate;

[0018] As a further improvement of the above technical solution: one end of the spiral rod is fixedly connected with an adjusting button.

[0019] The beneficial effects of this improvement are: by using the adjustment knob, the spiral rod can be easily rotated and adjusted, which is convenient for the staff to use and improves the convenience during use;

[0020] In order to control the rotation of the screw rod and facilitate adjustment;

[0021] As a further improvement of the above technical solution: retaining holes are provided at the four corners of the bottom plate.

[0022] The beneficial effects of this improvement are: by using the fixing holes, the bottom plate can be fixed to ensure the stability of the bottom plate and prevent the bottom plate from loosening and affecting the stability of the bracket;

[0023] In order to fix the bottom plate and ensure stability;

[0024] As a further improvement of the above technical solution: a plurality of positioning grooves are provided on the mounting plate.

[0025] The beneficial effect of this improvement is that the limit switch can be fixed by using the positioning groove, ensuring that the limit switch is more stable during use and will not be displaced at will;

[0026] In order to fix the limit switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The three-dimensional structure provided by the utility model is shown in FIG. Figure 1 ;

[0028] Figure 2 A front view provided for the utility model;

[0029] Figure 3 The utility model provides Figure 5 The three-dimensional cross-section view at AA in the middle;

[0030] Figure 4 The utility model provides Figure 5 A three-dimensional cross-section view at the middle BB;

[0031] Figure 5 The three-dimensional structure provided by the utility model is shown in FIG. Figure 2 .

[0032] In the figure, 1, base plate; 11, moving seat; 12, support plate; 13, mounting plate; 14, adjusting column; 15, tooth groove; 16, fixing frame; 17, positioning plate; 18, forward and reverse motor; 19, rotating shaft; 20, gear; 31, slide groove; 32, adjusting groove; 33, slide rod; 34, adjusting plate; 35, screw rod; 41, guide groove; 42, guide column; 43, limit column; 51, scale; 52, identification block; 61, adjusting button; 71, retaining hole; 81, positioning groove. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0034] like Figures 1 to 5As shown, an adjustable pitch limit bracket of a wind turbine generator set provided by an embodiment of the utility model comprises a base plate 1, the upper end surface of the base plate 1 is slidably connected to two symmetrical moving seats 11, the upper end surface of the moving seat 11 is fixedly connected to a support plate 12, a mounting plate 13 is movably connected between the two support plates 12, an adjusting column 14 is fixedly connected to the lower end surface of the mounting plate 13, a plurality of evenly distributed tooth grooves 15 are provided on the adjusting column 14, a fixing frame 16 is fixedly connected to the upper end surface of the base plate 1, a positioning plate 17 is fixedly connected to one side of the fixing frame 16, a forward and reverse motor 18 is fixedly connected to the upper end surface of the positioning plate 17, the positioning plate 17 can fix the forward and reverse motor 18 to ensure the stable output of the forward and reverse motor 18, and the output end of the forward and reverse motor 18 is connected to a rotating shaft 1 9, the rotating shaft 19 is rotatably connected with the fixing frame 16, and a gear 20 is fixedly connected to the outer wall of the rotating shaft 19. The gear 20 meshes with the adjusting column 14 through the tooth groove 15. By using the forward and reverse motor 18, the rotating shaft 19 drives the gear 20 to rotate, so that the gear 20 meshes with the tooth groove 15 on the adjusting column 14, thereby controlling the adjusting column 14 to lift and lower the mounting plate 13. Two symmetrical guide grooves 41 are provided on the upper end surface of the support plate 12, and a guide column 42 is slidably connected in the guide groove 41. The bottom end of the guide column 42 is fixedly connected to the limiting column 43, and the guide column 42 is fixedly connected to the mounting plate 13. In the process of lifting and lowering the mounting plate 13, the four guide columns 42 slide in their respective corresponding guide grooves 41 to guide the mounting plate 13 to ensure that the mounting plate 13 is lifted and lowered. To ensure the stable lifting of the mounting plate 13, four limit columns 43 can limit the corresponding guide columns 42 to prevent the guide columns 42 from being separated from the support plate 12. Two symmetrical slide grooves 31 are provided on the upper end surface of the bottom plate 1. An adjusting groove 32 is provided in the bottom plate 1. The adjusting groove 32 is connected to the slide groove 31. A slide rod 33 is slidably connected in the slide groove 31. The slide rod 33 is fixedly connected to the movable seat 11. An adjusting plate 34 is slidably connected in the adjusting groove 32. The adjusting plate 34 is fixedly connected to the slide rod 33. A spiral rod 35 is screwed on the adjusting plate 34. The spiral rod 35 is rotatably connected to the bottom plate 1. An adjusting button 61 is fixedly connected to one end of the spiral rod 35. The spiral rod 35 can be rotated by rotating the adjusting button 61 to make the spiral rod 35 and the adjusting plate 34 move in a certain direction. The two slide bars 33 are moved by the movement of the adjusting plate 34, so as to adjust the use position of the mounting plate 13. A scale 51 is provided on the upper end surface of the bottom plate 1. An identification block 52 is fixedly connected to one side of one of the moving seats 11. The identification block 52 is slidably connected to the bottom plate 1. During the movement of one of the moving seats 11, the identification block 52 slides on the bottom plate 1. With the use of the scale 51, the movement of the mounting plate 13 can be accurately controlled. Retention holes 71 are provided at the four corners of the bottom plate 1. The four retention holes 71 can fix the bottom plate 1 to ensure the stability of the bottom plate 1 during use. A plurality of positioning grooves 81 are provided on the mounting plate 13. The four positioning grooves 81 can fix the limit switch.Ensure the stability of the limit switch during use and prevent it from being displaced or loosened at will.

[0035] The working principle and use process of the utility model are as follows: when in use, the limit switch is fixed by four positioning grooves 81, and the fixing holes 71 at the four corners of the base plate 1 are used to fix the base plate 1 and install it in the used position. When adjustment is needed, the screw rod 35 is screwed with the adjusting plate 34 by rotating the adjusting button 61, and the two sliding rods 33 are driven to slide on the base plate 1 through the adjusting plate 34, so as to adjust the use position of the two moving seats 11, the two support plates 12 and the mounting plate 13. In the process of adjustment, the identification block 52 and the scale 51 are used to achieve precise movement. The rotation of the forward and reverse motor 18 can drive the rotating shaft 19 and the gear 20 to rotate, so that the gear 20 is engaged with the tooth groove 15 on the adjusting column 14, so as to adjust the use height of the mounting plate 13. In the process of lifting and lowering the mounting plate 13, the four guide columns 42 guide the mounting plate 13 to ensure the stability of the mounting plate 13 during the lifting process, and no offset or shaking will occur, so as to realize the use process of the variable pitch limit bracket.

[0036] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable pitch limit bracket for a wind turbine generator set, comprising a bottom plate (1), characterized in that: The upper end surface of the bottom plate (1) is slidably connected to two symmetrical moving seats (11), the upper end surface of the moving seat (11) is fixedly connected to a support plate (12), a mounting plate (13) is movably connected between the two support plates (12), and the lower end surface of the mounting plate (13) is fixedly connected to an adjustment column (14); The adjusting column (14) is provided with a plurality of evenly distributed tooth grooves (15); the upper end surface of the bottom plate (1) is fixedly connected to a fixing frame (16); one side of the fixing frame (16) is fixedly connected to a positioning plate (17); the upper end surface of the positioning plate (17) is fixedly connected to a forward and reverse motor (18); the output end of the forward and reverse motor (18) is connected to a rotating shaft (19); the rotating shaft (19) is rotatably connected to the fixing frame (16); a gear (20) is fixedly connected to the outer wall of the rotating shaft (19); the gear (20) is meshed with the adjusting column (14) through the tooth grooves (15).

2. The adjustable pitch limit bracket of a wind turbine generator set according to claim 1, characterized in that: The upper end surface of the bottom plate (1) is provided with two symmetrical sliding grooves (31); an adjusting groove (32) is provided in the bottom plate (1); the adjusting groove (32) is communicated with the sliding groove (31); a sliding rod (33) is slidably connected in the sliding groove (31); the sliding rod (33) is fixedly connected to the movable seat (11); an adjusting plate (34) is slidably connected in the adjusting groove (32); the adjusting plate (34) is fixedly connected to the sliding rod (33); a spiral rod (35) is screwed on the adjusting plate (34); and the spiral rod (35) is rotatably connected to the bottom plate (1).

3. The adjustable pitch limit bracket of a wind turbine generator set according to claim 1, characterized in that: The upper end surface of the support plate (12) is provided with two symmetrical guide grooves (41), a guide column (42) is slidably connected in the guide groove (41), the bottom end of the guide column (42) is fixedly connected to a limiting column (43), and the guide column (42) is fixedly connected to the mounting plate (13).

4. The adjustable pitch limit bracket of a wind turbine generator set according to claim 1, characterized in that: The upper end surface of the bottom plate (1) is provided with a scale (51), one side of one of the movable seats (11) is fixedly connected with an identification block (52), and the identification block (52) is slidably connected to the bottom plate (1).

5. The adjustable pitch limit bracket of a wind turbine generator set according to claim 2, characterized in that: One end of the spiral rod (35) is fixedly connected to an adjusting button (61).

6. The adjustable pitch limit bracket of a wind turbine generator set according to claim 1, characterized in that: The bottom plate (1) is provided with retaining holes (71) at the four corners.

7. The adjustable pitch limit bracket of a wind turbine generator set according to claim 1, characterized in that: The mounting plate (13) is provided with a plurality of positioning grooves (81).

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