CN216044162U

CN216044162U - Synchronous variable pitch structure of wind generating set

Info

Publication number: CN216044162U
Application number: CN202122754295.XU
Authority: CN
Inventors: 杨瑞
Original assignee: Jinma New Energy Co ltd
Current assignee: Jinma New Energy Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-15
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a synchronous variable pitch structure of a wind generating set, belonging to the technical field of wind power generation. The sliding shaft sleeve and the synchronous disc are fixedly connected together by the flange plate, the synchronous disc and the flange plate are fixed together by the bolts, the stress condition of the sliding shaft sleeve is improved, and the connecting point of the synchronous disc and the sliding shaft sleeve is positioned on the outer side end face of the synchronous disc, so that the maintenance space is enlarged, and the maintenance operation is more convenient.

Description

Synchronous variable pitch structure of wind generating set

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a synchronous pitch-variable structure of a wind generating set.

Background

The original synchronous pitch-controlled structure of the wind generating set is characterized in that a pitch-controlled sliding shaft sleeve is inserted into a synchronous disc, and a threaded hole is processed on the end face of a shaft for connection. The bolt is limited to the space size, only a bolt with a small specification can be used, and the bolt is frequently broken under the action of alternating stress in the using process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a synchronous variable pitch structure of a wind generating set, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a wind generating set becomes oar structure in step, includes the slip axle sleeve, the displacement axis is equipped with in the slip axle sleeve, slip axle sleeve end is provided with the ring flange, the ring flange passes through bolt one and synchronization disc fixed connection, the displacement axis passes from the synchronization disc center.

Furthermore, the flange plate is fixed on one end face of the synchronous plate, and a bearing seat is fixed on the other end face of the flange plate.

Furthermore, the bearing seat is fixed on the flange plate through a second bolt.

Furthermore, a bearing is arranged in the bearing seat, a bearing sleeve is arranged on the inner ring of the bearing, and the bearing sleeve is sleeved on the pitch-variable shaft.

Further, the bearing is a tapered roller bearing.

Further, the pitch axis is a stepped axis.

Furthermore, an installation groove is formed in the end face of the synchronous disc fixed bearing seat, and the bearing seat is embedded into the bearing seat.

The utility model has the advantages that: the sliding shaft sleeve and the synchronous disc are fixedly connected together by the flange plate, the synchronous disc and the flange plate are fixed together by the bolts, the stress condition of the sliding shaft sleeve is improved, and the connecting point of the synchronous disc and the sliding shaft sleeve is positioned on the outer side end face of the synchronous disc, so that the maintenance space is enlarged, and the maintenance operation is more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic structural diagram of the present invention.

Reference numerals: the device comprises a synchronous disc 1, a bearing seat 2, a tapered roller bearing 3, a bearing sleeve 4, a pitch-variable shaft 5, a sliding shaft sleeve 6 and a bolt I7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the synchronous pitch control structure of the wind generating set comprises a sliding shaft sleeve 6, a pitch control shaft 5 is arranged inside the sliding shaft sleeve 6, a flange plate is arranged at the tail end of the sliding shaft sleeve 6 and fixedly connected with a synchronous disc 1 through a first bolt 7, and the pitch control shaft 5 penetrates through the center of the synchronous disc 1. The synchronous disc 1, the variable pitch shaft 5 and the sliding shaft sleeve 6 are coaxially arranged. The sliding shaft sleeve 6 and the flange plate can be integrally formed, and the flange plate can also be fixed at the end part of the sliding shaft sleeve 6 through welding.

In the above embodiment, the flange plate is fixed to one end surface of the synchronization disc 1, and the bearing seat 2 is fixed to the other end surface of the flange plate. The maintenance space is enlarged, and the maintenance operation is more convenient.

In the above embodiment, the bearing seat 2 is fixed on the flange plate by the second bolt. The specifications of the first bolt 7 and the second bolt can be consistent, and bolt holes and bolts of different specifications can be selected according to different strength requirements.

In the above embodiment, the bearing is installed inside the bearing seat 2, the bearing sleeve 4 is installed on the inner ring of the bearing, and the bearing sleeve 4 is sleeved on the pitch-variable shaft 5. The bearing is a tapered roller bearing 3.

In the above embodiment, the pitch-variable shaft 5 is a stepped shaft. The installation of the tapered roller bearing 3 and the synchronous disc 1 is facilitated.

In the above embodiment, the end surface of the fixed bearing seat 2 of the synchronization disc 1 is provided with a mounting groove, and the bearing seat 2 is embedded into the bearing seat 2. The mounting groove is a circular groove and is coaxial with the synchronous disc 1.

When the pitch is changed, the pitch-changing hydraulic cylinder acts and transmits the action to the synchronous disc 1 through the pitch-changing shaft 5, and at the moment, the synchronous disc 1 performs linear motion in the hub along the shifting fork rod.

This application uses ring flange fixed connection together with sliding shaft sleeve 6 and synchronous dish 1 to synchronous dish 1 passes through the bolt fastening with the ring flange and is in the same place, has improved sliding shaft sleeve 6's the atress condition, and synchronous dish 1 is located 1 outside terminal surface of synchronous dish with sliding shaft sleeve 6's tie point, has increased and has maintained the space, is convenient for more maintain the operation.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a synchronous variable pitch structure of wind generating set which characterized in that: including slip axle sleeve (6), displacement axle (5) are equipped with to slip axle sleeve (6) inside, slip axle sleeve (6) end is provided with the ring flange, the ring flange passes through bolt one (7) and synchronization disc (1) fixed connection, displacement axle (5) are passed from synchronization disc (1) center.

2. The synchronous pitch structure of the wind generating set according to claim 1, wherein: the flange plate is fixed on one end face of the synchronous plate (1), and a bearing seat (2) is fixed on the other end face of the flange plate.

3. The synchronous pitch structure of the wind generating set according to claim 2, wherein: and the bearing seat (2) is fixed on the flange plate through a second bolt.

4. The synchronous pitch structure of the wind generating set according to claim 3, wherein: the bearing is arranged in the bearing seat (2), the bearing sleeve (4) is arranged on the inner ring of the bearing, and the bearing sleeve (4) is sleeved on the variable-pitch shaft (5).

5. The synchronous pitch structure of the wind generating set according to claim 4, wherein: the bearing is a tapered roller bearing (3).

6. The synchronous pitch structure of the wind generating set according to claim 1, wherein: the variable pitch shaft (5) is a stepped shaft.

7. The synchronous pitch structure of the wind generating set according to claim 1, wherein: the end face of the fixed bearing seat (2) of the synchronous disc (1) is provided with a mounting groove, and the bearing seat (2) is embedded into the bearing seat (2).