CN202203044U - Vertical shaft multiple-section type wind generating set connection structure - Google Patents

Abstract

The utility model discloses a vertical shaft multiple-section type wind generating set connection structure comprising a plurality of groups of multiple-section type wind generators and a vertical shaft windmill; wherein an output rotation shaft of the vertical shaft windmill drives the plurality of groups of multiple-section type wind generators to rotate for generating electricity. In the vertical shaft multiple-section type wind generating set connection structure, a plurality of driven wheels are driven by a transmission shaft and a transmission gear to rotate for providing enough energy to drive the plurality of groups of multiple-section type wind generators to generate electricity, thereby solving the process and technical problem that parallel shaft small generators cannot be combined into a large generator. With the adoption of the vertical shaft multiple-section type wind generating set connection structure, the structure that a plurality of the generators are connected in series is formed, the weight is lightened, the generator with large generated energy can be manufactured without large-scale equipment, and the efficiency of the generator is redoubled when being driven by the same windmill.

Description

A vertical axis multi-section wind turbine connection structure

technical field

The utility model relates to a connection structure of a wind power generator set, in particular to a connection structure of a vertical axis multi-section wind power generator set.

Background technique

At present, small wind turbines are all off-grid, and most of them are parallel axis wind turbines.

Due to the technical characteristics of parallel shaft generators, they cannot be combined into multi-stage wind turbines.

Parallel-axis windmills are not suitable for driving multiple sets of multi-stage wind turbines to generate electricity due to the need for high start-up wind speed, large start-up torque, and small energy to obtain wind energy. Especially on the transmission mechanism, due to the small wind blades of the parallel shaft generator, the use of wind energy is less head-on, and the kinetic energy performance is not enough, so the windmill must be closely connected with the generator. The windmill of the vertical axis wind turbine can start at low speed and generate electricity at low speed, and the power generation index can be reached within 300 rpm.

Utility model content

The utility model aims at the disadvantages of the prior art, and provides a connection structure in which the transmission shaft of the vertical axis windmill drives multiple sets of multi-section wind power generators to generate electricity.

The connection structure of the vertical axis multi-section wind power generating set described in the utility model includes multiple sets of multi-section wind power generators, and also includes a vertical axis windmill, the output shaft of the vertical axis windmill drives multiple sets of multi-section wind turbines to rotate through the transmission mechanism And generate electricity.

In the vertical axis multi-section wind turbine connection structure described in the utility model, the vertical axis windmill includes a vertical central axis and a plurality of fan blades distributed in the circumferential direction of the central axis; the fan blades pass through the strut structure connected to the central shaft.

In the vertical axis multi-section wind turbine connection structure described in the utility model, the upper and lower ends of the central axis are respectively provided with upper and lower flanges; the strut structure includes a main strut and an auxiliary strut, wherein , the main struts are two sets of upper and lower, the upper set of main struts is arranged between the upper end of the fan blade and the upper flange of the central shaft, and the lower set of main struts is arranged between the lower end of the fan blade and the lower flange of the central shaft between; the auxiliary strut is arranged between the upper end of the fan blade and the lower flange of the central shaft.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, the upper set of main struts includes two equal-length upper connecting rods, one end of the two upper connecting rods is respectively connected to the fan blade, and the other end is Commonly connected to the upper flange of the central shaft; the lower group of main struts includes two equal-length lower connecting rods, one end of the two lower connecting rods is respectively connected to the fan blade, and the other end is jointly connected to the central shaft. Lower flange.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, the multiple sets of multi-section wind power generators are arranged in a box, and the vertical axis windmill is arranged on the top of the box.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, the transmission mechanism includes a driving gear arranged at the end of the output shaft and driven gears arranged on each group of multi-section wind power generators, and the driving gear meshes with the driven gear.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, the driven gears are evenly distributed along the circumference of the driving gear.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, a tower is arranged on the top of the box, and a fixed jacket is arranged inside the tower, and the output shaft passes through the fixed jacket.

In the vertical axis multi-section wind turbine connection structure described in the utility model, the multi-section wind generator includes an upper casing, a middle casing, and a lower casing, and the upper casing is fixedly connected to the driven gear. The middle casing is arranged between the upper casing and the lower casing, and is connected with the upper casing and the lower casing, and the lower casing is connected with the upper flange on the base of the lower part of the multi-section wind power generator; The casing, the middle casing, and the lower casing are respectively equipped with magnet discs; the middle of the magnet discs is respectively equipped with a stator.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, a thrust bearing is arranged in the upper flange on the base of the lower part of the multi-section wind power generator, and a lower flange is fixedly connected to the base; The stator shaft of the multi-stage wind power generator passes through the upper flange and the thrust bearing in sequence and is fixedly connected with the lower flange.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, the stator is fixedly connected to the base through positioning pins.

In the connection structure of the vertical axis multi-section wind power generating set described in the utility model, the transmission shaft and the transmission gear of the vertical axis windmill drive a plurality of driven wheels to rotate, so as to provide enough energy to drive multiple sets of multi-section wind power generators to generate electricity , which solves the technical and technical problems that small generators with parallel shafts cannot be combined into large generators. The connection structure described in the utility model forms a series connection structure of multiple generators, reduces weight, and can manufacture a generator with a large power generation without large equipment, so that the efficiency of the generator can be increased under the drive of the same windmill. doubled.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of the vertical axis multi-section wind power generation unit described in the utility model;

Fig. 2 is a schematic diagram of the connection of fan blades in the connection structure of the vertical axis multi-section wind power generating set described in the present invention;

Fig. 3 is a schematic diagram of the transmission mechanism in the connection structure of the vertical axis multi-section wind power generating set described in the present invention;

Fig. 4 is a schematic diagram of the multi-stage wind power generator in the connection structure of the vertical axis multi-stage wind power generating set of the present invention.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it by referring to the description.

As shown in Figure 1, the connection structure of the vertical axis multi-section wind power generation unit described in the utility model includes multiple groups of multi-section wind power generators 1, and also includes a vertical axis windmill, and the output shaft 18 of the vertical axis windmill is driven by a transmission mechanism Multiple sets of multi-stage wind power generators 1 rotate to generate electricity. In the connection structure of the vertical-axis multi-section wind power generating set described in the utility model, the vertical-axis windmill is used to drive multiple groups of multi-section wind power generators to generate electricity, which solves the technical and technical problem that small parallel-axis generators cannot be combined into large generators. question. The connection structure described in the utility model forms a series connection structure of multiple generators, reduces weight, and can manufacture a generator with a large power generation without large equipment, so that the efficiency of the generator can be increased under the drive of the same windmill. doubled.

Specifically, as shown in Fig. 1 and Fig. 2, the vertical axis windmill includes a vertical central axis 23 and a plurality of blades 19 distributed in the circumferential direction of the central axis 23; connected to the central shaft 23. The fan blade 19 can adopt a cuboid streamlined structure with a width of more than 1 meter and a height of more than 10 meters, and its rotation radius can reach more than 6 meters. The shape of the fan blade 19 is similar to that of an airfoil, and has the advantages of strong wind-catching ability and small starting moment. The upper and lower ends of the central axis 23 are respectively provided with an upper flange and a lower flange 25; the strut structure includes a main strut 22 and a secondary strut 24, wherein the main strut 22 is the upper , the next two groups, the main struts of the upper group are arranged between the upper end of the fan blade 19 (the distance from the top of the fan blade 19 is preferably 1/3 of the total length of the fan blade) and the upper flange of the central axis 23, and the main struts of the lower group The strut is arranged between the lower end of the fan blade 19 (the distance from the bottom end of the fan blade 19 is preferably 1/3 of the total length of the fan blade) and the lower flange 25 of the central axis 23; Between the upper end of the fan blade 19 and the lower flange 25 of the central shaft 23 . As shown in FIG. 2 , the upper set of main struts may specifically include two equal-length upper connecting rods 26 , one end of the two upper connecting rods 26 is respectively connected to the fan blade 19 , and the other end is jointly connected to the central shaft 23 The upper flange of the upper flange, that is, two equal-length upper connecting rods 26 and fan blades 19 are distributed in an isosceles triangle; the lower group of main struts also includes two equal-length lower connecting rods, and one end of the two lower connecting rods They are respectively connected to the fan blades 19 , and the other ends are jointly connected to the lower flange 25 of the central shaft 23 . The two equal-length lower connecting rods and the fan blades 19 are also distributed in an isosceles triangle. The isosceles triangle distribution of the main struts and the triangular distribution of the main struts, the auxiliary struts 24 and the fan blades 19 can greatly enhance the connection strength of the fan blades.

As shown in FIG. 1 , the multiple sets of multi-stage wind power generators 1 are arranged in a box body 2 , and the vertical axis windmill is arranged on the top of the box body 2 . A flange is provided on the lower part of the blade set of the vertical axis windmill, and a corresponding flange is also provided on the upper end of the output shaft 18 , and the blade set and the output shaft 18 are fixedly connected by docking the above two flanges.

The transmission mechanism includes a driving gear 10 arranged at the end of the output shaft 18 of the vertical axis windmill, and a driven gear 4 arranged on each group of multi-stage wind power generators 1, the driving gear 10 and the driven gear 4 meshing, so that the rotation of the output shaft 18 of the vertical axis windmill can drive each group of multi-stage wind turbines 1 to generate electricity. In the utility model, the driven gears 4 are uniformly distributed along the circumferential direction of the driving gear 10, that is to say, each group of multi-stage wind power generators 1 is uniformly distributed along the circumferential direction of the output shaft 18 of the vertical axis windmill, This makes it possible for one vertical axis windmill to drive multiple groups of multi-stage wind power generators 1 . As shown in FIG. 1 , in this embodiment, two sets of multi-stage wind generators 1 are provided, and the two sets of multi-stage wind generators 1 are symmetrically distributed along the output shaft 18 of the vertical windmill.

In the utility model, the multi-stage wind power generator 1 includes an upper casing, a middle casing, and a lower casing, and the upper casing is fixed to the driven gear 4 through the connection shaft and the flange 3 of the upper casing of the generator. connect. The middle casing is arranged between the upper casing and the lower casing, and is connected with the upper casing and the lower casing; the lower casing is connected with the upper flange 5 on the base 8 at the lower part of the multi-section wind power generator 1 ; The upper casing, the middle casing, and the lower casing are respectively equipped with magnet disks; the middle of the magnet disks are respectively equipped with stators. A thrust bearing 7 is arranged in the upper flange 5 on the base 8 at the bottom of the multi-section wind power generator 1, and a lower flange 6 is fixedly connected to the base 8; the stator of the multi-section wind power generator 1 The shaft passes through the upper flange 5 and the thrust bearing 7 in sequence and is fixedly connected with the lower flange 6 . The stator is fixedly connected to the base 8 through positioning pins 9 . The base 8 is fixedly connected with the box body 2 . Each section of the multi-section wind power generator 1 leads to a three-phase wire, and each section of the generator outputs power through its own three-phase wire.

In the utility model, a tower frame 15 is arranged on the top of the box body 2, and a fixed jacket 13 is arranged inside the tower frame 15, and the output shaft 18 of the vertical axis windmill passes through the fixed jacket 13, thereby realizing the vertical axis windmill. of smooth operation. Specifically, as shown in Figure 1, the upper end of the output shaft 18 is provided with an upper flange 11 and a bearing, the lower end of the output shaft 18 is provided with a lower flange 12 and a bearing, and the upper flange 11 and the lower Between the flanges 12 is a fixed jacket 13 .

The tower 15 is tubular, and the lower end of the tower 15 is fixedly connected to the top of the box body 2 through a lower flange 16 . A trapezoidal cap 14 is arranged on the upper end of the tower 15 , and the trapezoidal cap 14 is fixedly connected with the upper flange 11 , and the lower flange 16 of the tower 15 is fixedly connected with the lower flange 12 of the output shaft 18 .

In the present utility model, the lower part of the output rotating shaft 18 is provided with a articulated connecting sleeve 20, and the articulated connecting sleeve 20 is provided with a braking brake 17. By controlling the braking controller 17, the braking of the vertical axis windmill can be realized. In order to ensure the safety of the wind power generating set described in the utility model in case of emergency. The brake controller 17 is centrifugal. When the windmill exceeds a certain speed, the brake pads will automatically fall and rub through the spring switch to slow down the speed; slow down. In the utility model, one end of the driving gear 10 is connected with the articulated sleeve 20, and the other end is connected with the thrust bearing 21 of the base. This structure can ensure the smooth rotation of the driving gear 10, that is to say, the driven gear 4 smooth rotation.

Although the embodiment of the present utility model has been disclosed as above, it is not limited to the use listed in the description and the implementation, and it can be applied to various fields suitable for the present utility model. For those familiar with the art, Further modifications can be readily effected, so the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (11)

1. A vertical-axis multi-section wind turbine connection structure, comprising multiple groups of multi-section wind power generators, characterized in that it also includes a vertical-axis windmill, the output shaft of the vertical-axis windmill drives multiple groups of multi-section wind power generators through a transmission mechanism The machine rotates to generate electricity. 2. The connection structure of wind power generators as claimed in claim 1, wherein the vertical axis windmill comprises a central axis arranged vertically and a plurality of fan blades distributed in the circumferential direction of the central axis; A rod structure is connected to the central shaft. 3. The connection structure of wind power generating set according to claim 2, characterized in that, the upper and lower ends of the central shaft are provided with upper and lower flanges respectively; the strut structure includes a main strut and an auxiliary strut , wherein, the main struts are two groups of upper and lower, the upper set of main struts is set between the upper end of the fan blade and the upper flange of the central shaft, and the lower set of main struts is set between the lower end of the fan blade and the lower end of the central shaft between the flanges; the auxiliary support rod is arranged between the upper end of the fan blade and the lower flange of the central shaft. 4. The connecting structure of a wind power generating set according to claim 3, wherein the upper set of main struts comprises two equal-length upper connecting rods, one end of the two upper connecting rods is respectively connected to the fan blade, and the other One end is jointly connected to the upper flange of the central shaft; the lower group of main struts includes two equal-length lower connecting rods, one end of the two lower connecting rods is respectively connected to the fan blade, and the other end is jointly connected to the center Shaft lower flange. 5 . The connection structure of wind power generators according to claim 1 , wherein the multiple sets of multi-stage wind power generators are arranged in a box, and the vertical axis windmill is arranged on the top of the box. 5 . 6. The connection structure of wind power generators according to claim 1, wherein the transmission mechanism comprises a driving gear arranged at the end of the output shaft and driven gears arranged on each group of multi-stage wind power generators, the The driving gear meshes with the driven gear. 7. The connection structure of the wind power generating set according to claim 6, characterized in that, the driven gears are evenly distributed along the circumference of the driving gear. 8 . The connection structure of a wind power generating set according to claim 5 , wherein a tower is arranged on the top of the box, and a fixed jacket is arranged inside the tower, and the output rotating shaft passes through the fixed jacket. 9 . 9. The connection structure of wind power generating set according to claim 6, wherein the multi-stage wind power generator comprises an upper casing, a middle casing, and a lower casing, and the upper casing is fixed to the driven gear connected, the middle casing is arranged between the upper casing and the lower casing, and is connected with the upper casing and the lower casing, and the lower casing is connected with the upper flange on the base of the lower part of the multi-section wind turbine; The upper casing, the middle casing, and the lower casing are respectively equipped with magnet discs; the middle of the magnet discs is respectively equipped with a stator. 10. The connection structure of wind power generating set as claimed in claim 9, characterized in that, a thrust bearing is arranged in the upper flange on the base of the lower part of the multi-section wind power generator, and a lower flange is fixedly connected to the base. Lan; the stator shaft of the multi-section wind power generator passes through the upper flange and the thrust bearing in turn and is fixedly connected with the lower flange. 11. The connection structure of a wind power generating set according to claim 10, wherein the stator is fixedly connected to the base through positioning pins.

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