CN220539766U - Driving chain main shaft and wind driven generator - Google Patents

Abstract

The application provides a driving chain main shaft and a wind driven generator. The driving chain main shaft is applied to a wind driven generator. The drive chain spindle comprises a cylinder body and one or more rib plates arranged on the inner wall of the cylinder body, and each rib plate extends along the axial direction of the cylinder body. The driving chain main shaft has better rigidity and lighter weight.

Description

Driving chain main shaft and wind driven generator

Technical Field

The application relates to the technical field of wind power generation, in particular to a driving chain main shaft and a wind driven generator.

Background

Along with the gradual exhaustion of energy sources such as coal, petroleum and the like, people pay more attention to the utilization of renewable energy sources. Wind energy is becoming increasingly important worldwide as a clean renewable energy source. With the continuous development of wind power technology, wind power generators are increasingly applied to power systems. Wind power generators are large-scale devices that convert wind energy into electrical energy, and are typically located in areas where wind energy resources are abundant.

The drive train main shaft of a wind power generator is basically divided into two types: one type is a common forging spindle; one type is the casting spindle, which has been increasing in the last decade. The problems with existing spindles are mainly size problems. As the load and power of wind generators increases, the size of the main shaft is also increasing. At present, the number of forging spindles is smaller and smaller, mainly because after the size is increased, the forging cost is high and the productivity is small. Although the cast spindle can solve the problem of forging the bearing to some extent, the hollow structure is liable to cause insufficient rigidity. In order to compensate for the lack of rigidity, the wall of the spindle is generally designed to be thicker, which, however, leads to an increase in the weight of the spindle.

Disclosure of Invention

The purpose of the application is to provide a driving chain main shaft and a wind driven generator, which have better rigidity and lighter weight.

One aspect of the present application provides a drive train spindle for use in a wind turbine. The driving chain main shaft comprises a cylinder body and one or more rib plates arranged on the inner wall of the cylinder body, and each rib plate extends along the axial direction of the cylinder body.

Further, the plurality of rib plates are uniformly distributed in the circumferential direction of the cylindrical body.

Further, each of the rib plates extends in a radial direction of the cylinder.

Further, the cylindrical body has a central axis, and the ends of the plurality of rib plates are disposed around the central region, independently of each other, without being connected to each other.

Further, the cylindrical body has a central axis through which the plurality of rib plates are connected to each other to constitute a unitary structure.

Further, the cylindrical body has first and second ends opposite in the axial direction, and each of the rib plates integrally extends from the first end to the second end.

Further, the inner diameter of the first end is larger than the inner diameter of the second end, and the first end can be used for connecting with a hub of the wind driven generator.

Further, an opening is formed in the wall of the cylinder body.

Further, the cylinder is welded from at least two plates, or the cylinder is a one-piece structure made by casting.

According to the driving chain main shaft, the rib plates are added to the inner wall of the cylinder body, so that the rigidity of the main shaft can be increased, and the weight of the main shaft is reduced. In addition, the drive chain spindle of the embodiment of the application does not affect the interface size of a normal spindle.

Another aspect of the present application also provides a wind power generator. The wind power generator comprises a drive train main shaft as described above.

The wind driven generator provided by the embodiment of the application has good main shaft rigidity and reduced main shaft weight.

Drawings

Fig. 1 is a schematic perspective view of a drive chain spindle according to one embodiment of the present application.

Fig. 2 is a perspective view of another view of a drive chain spindle according to one embodiment of the present application.

Fig. 3 is a right side view of the drive chain spindle shown in fig. 1.

Fig. 4 is a front view of the drive chain spindle shown in fig. 1.

Fig. 5 is an end cross-sectional schematic view of a drive chain spindle according to another embodiment of the present application.

Fig. 6 is an end cross-sectional schematic view of a drive chain spindle of yet another embodiment of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

The embodiment of the application provides a drive chain main shaft 100 applied to a wind driven generator. Fig. 1 to 4 disclose illustrations of a drive chain spindle 100 according to an embodiment of the present application, wherein fig. 1 and 2 are perspective views of two different views of the drive chain spindle 100, fig. 3 is a right side view of the drive chain spindle 100 shown in fig. 1, and fig. 4 is a front view of the drive chain spindle 100 shown in fig. 1. Referring to fig. 1 to 4 in combination, the drive chain spindle 100 of one embodiment of the present application includes a cylinder 110 and one or more rib plates 120 provided on an inner wall of the cylinder 110, each rib plate 120 extending in an axial direction of the cylinder 110.

The driving chain main shaft 100 of the embodiment of the application can increase the rigidity of the main shaft and reduce the weight of the main shaft by adding the rib plates 120 on the inner wall of the cylinder 110.

In addition, the drive chain spindle 100 of the present embodiment does not affect the interface size of a normal spindle.

In one embodiment, the drive chain spindle 100 of the present application may be a cast spindle. The drive chain spindle 100 is one piece. The cylinder 110 of the drive train spindle 100 is a unitary structure made by casting.

For the case that the driving chain spindle 100 of the present application is a casting spindle, the driving chain spindle 100 of the present application can effectively solve the problem of insufficient rigidity caused by the hollow structure of the casting spindle by adding the rib plates 120 on the inner wall of the cylinder 110.

In another embodiment, the drive chain spindle 100 of the present application may also be a welding spindle. In the case where the drive chain spindle 100 is a welding spindle, the cylinder 110 of the drive chain spindle 100 may be welded from at least two plates (e.g., steel plates or cast steel plates). The rib 120 inside the cylinder 110 may also be manufactured by welding.

In some embodiments, the plurality of webs 120 are evenly distributed in the circumferential direction of the cylinder 110. Thus, uniformity of rigidity of the entire cylinder 110 can be improved.

Each of the rib plates 120 extends in the radial direction of the cylinder 110. In some embodiments, the cylinder 110 has a central axis 101 and the plurality of webs 120 are connected to one another by the central axis 101 to form a unitary structure. That is, the plurality of rib plates 120 are radial plates, and each rib plate 120 extends radially from one end of the circumferential wall of the cylinder 110 to the opposite end of the circumferential wall through the central axis 101.

For example, in the embodiment shown in fig. 1 to 4, the drive chain spindle 100 is provided with four rib plates 120 on the inner wall of the cylinder 110, the four rib plates 120 are uniformly distributed in the circumferential direction of the cylinder 110, and the four rib plates 120 extend from the radial direction to the central axis 101, respectively, to form a unitary structure. The four gusset 120 intersect in a 90 degree arrangement.

The cylinder 110 of the drive chain spindle 100 has axially opposite first and second ends 111, 112, and each web 120 may extend integrally from the first end 111 to the second end 112 of the cylinder 110. Of course, the rib 120 is not limited to continuously extending from the first end 111 of the cylinder 110 to the second end 112 of the cylinder 110, and the rib 120 may discontinuously extend from the first end 111 of the cylinder 110 to the second end 112 of the cylinder 110, i.e., intermittently extend at intervals.

In some embodiments, the inner diameter of the first end 111 of the cylinder 110 is greater than the inner diameter of the second end 112 of the cylinder 110, the first end 111 of the cylinder 110 being enlarged. The first end 111 of the cylinder 110 may be used to connect to a hub (not shown) of a wind turbine.

In some embodiments, an opening 113 is formed in the wall of the cylinder 110 of the driving chain spindle 100 to facilitate processing, thereby improving manufacturability of the driving chain spindle 100.

Fig. 5 discloses an end cross-sectional schematic view of a drive chain spindle 200 according to another embodiment of the present application. As shown in fig. 5, the drive chain spindle 200 includes a cylindrical body 210 and a rib 220 provided on an inner wall of the cylindrical body 210. Unlike the drive chain spindle 100 shown in fig. 1 to 4, three rib plates 220 are provided inside the cylinder 210 of the drive chain spindle 200 shown in fig. 5.

The three rib plates 220 are uniformly distributed in the circumferential direction of the cylinder 210, and the three rib plates 220 are respectively extended from the radial direction to the central axis 201 of the cylinder 210 to form an integral structure. The three rib plates 220 are arranged at 120 degrees.

Fig. 6 discloses an end cross-sectional schematic view of a drive chain spindle 300 according to yet another embodiment of the present application. As shown in fig. 6, drive chain spindle 300 includes a cylindrical body 310 and rib plates 320 provided on the inner wall of cylindrical body 310. As with the drive chain spindle 200 shown in fig. 5, three rib plates 320 are provided inside the cylindrical body 310 of the drive chain spindle 300 shown in fig. 6, and the three rib plates 320 are uniformly distributed in the circumferential direction of the cylindrical body 310.

Unlike the drive chain spindle 200 shown in fig. 5, three rib plates 320 shown in fig. 6 extend radially from the inner wall of the cylinder body 310 toward the central axis 301 of the cylinder body 310, respectively, but the end portions of the three rib plates 320 are disposed around the central region, independently of each other.

The drive chain spindles 100, 200, 300 described in the various embodiments above of the present application may have better rigidity and lighter weight.

The embodiment of the application also provides a wind driven generator. The wind power generator comprises the drive train main shaft 100, 200, 300 as described in the various embodiments above.

The wind driven generator provided by the embodiment of the application has good main shaft rigidity.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.

Claims (10)

1. The utility model provides a drive chain main shaft, is applied to aerogenerator, its characterized in that: comprises a cylinder body and one or more rib plates arranged on the inner wall of the cylinder body, wherein each rib plate extends along the axial direction of the cylinder body.

2. The drive chain spindle of claim 1, wherein: the plurality of rib plates are uniformly distributed in the circumferential direction of the cylinder.

3. The drive chain spindle of claim 2, wherein: each of the rib plates extends in a radial direction of the cylindrical body.

4. A drive chain spindle as claimed in claim 3, wherein: the cylinder body is provided with a central axis, and the tail ends of the rib plates are arranged around the central area and are mutually independent and are not connected with each other.

5. A drive chain spindle as claimed in claim 3, wherein: the cylindrical body has a central axis through which the plurality of rib plates are connected to each other to constitute a unitary structure.

6. The drive chain spindle of claim 1, wherein: the cylindrical body has first and second ends opposite in the axial direction, and each of the rib plates integrally extends from the first end to the second end.

7. The drive chain spindle of claim 6, wherein: the first end has an inner diameter that is larger than an inner diameter of the second end, the first end being capable of being used for connecting a hub of the wind turbine.

8. The drive chain spindle as set forth in any one of claims 1 to 7, characterized in that: an opening is formed in the wall of the cylinder body.

9. The drive chain spindle as set forth in any one of claims 1 to 7, characterized in that: the cylinder is welded from at least two sheets or is a unitary structure made by casting.

10. A wind power generator, characterized in that: a drive chain spindle comprising the drive chain of any one of claims 1 to 9.