CN217602847U

CN217602847U - Wind turbine generator system shaft coupling displacement monitoring devices

Info

Publication number: CN217602847U
Application number: CN202220868053.5U
Authority: CN
Inventors: 卢妙政; 张文清; 丁益; 陈敏强; 王克杰; 杜成荣
Original assignee: Zhejiang Windey Co Ltd
Current assignee: Zhejiang Windey Co Ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-10-18
Anticipated expiration: 2032-04-15

Abstract

A wind turbine coupler displacement monitoring device comprises a wind turbine transmission chain system and a displacement sensor monitoring system, wherein the wind turbine transmission chain system comprises a gear box, a speed measuring fluted disc, a coupler and a generator, and the speed measuring fluted disc is arranged on the side of the gear box and used for detecting an initial position; the output shaft of the gear box is connected with the input shaft of the generator through a coupler; the displacement sensor monitoring system comprises a displacement sensor and a mounting support, the mounting support is connected to the input shaft of the generator, the mounting support is connected with the displacement sensor, and the displacement sensor is matched with the speed measuring fluted disc. The utility model discloses according to displacement value real-time supervision shaft coupling operational aspect, effectively reduce the probability that the shaft coupling broke down, reduce the change maintenance cost after breaking down.

Description

Wind turbine generator system shaft coupling displacement monitoring devices

Technical Field

The utility model belongs to the aerogenerator field relates to a wind turbine generator system shaft coupling displacement monitoring devices.

Background

Wind power generation, as a clean renewable energy source, has been rapidly developed in recent years, surpasses nuclear power, and becomes the third main energy source after coal power and hydropower. With the rise of the loading amount of the wind turbine generator, the installation and operation environments of the wind turbine generator become more and more severe, and the shaft coupling is used as an important device for connecting the gear box and the generator, so that the reliability is extremely important.

When the wind turbine generator system runs, the coupler rotates at a high speed along with the gear box, the coupler expansion sleeve moves backwards due to the installation and other reasons, if the coupler moves backwards beyond a certain distance, the coupler fails, the rotating speed cannot be judged, the unit safety is influenced, and the wind turbine generator system is stopped due to faults.

The existing technology mostly reflects the failure problem of the coupler according to the fact that the rotating speed cannot be detected or the rotating speed is indirectly judged to be out of a reasonable range, and the method judges the result, cannot reflect the failure trend of the coupler and cannot protect the coupler before the failure occurs.

Disclosure of Invention

In order to overcome the not enough of prior art, the utility model provides a wind turbine generator system shaft coupling displacement monitoring devices according to the displacement value real-time supervision shaft coupling operational aspect, effectively reduces the probability that the shaft coupling broke down, reduces the change maintenance cost after breaking down.

The utility model provides a technical scheme that its technical problem adopted is:

a wind turbine coupler displacement monitoring device comprises a wind turbine transmission chain system and a displacement sensor monitoring system, wherein the wind turbine transmission chain system comprises a gear box, a speed measuring fluted disc, a coupler and a generator, and the speed measuring fluted disc is arranged on the side of the gear box and used for detecting an initial position; the output shaft of the gear box is connected with the input shaft of the generator through a coupler; the displacement sensor monitoring system comprises a displacement sensor and a mounting support, the mounting support is connected to the input shaft of the generator, the mounting support is connected with the displacement sensor, and the displacement sensor is matched with the speed measuring fluted disc.

The beneficial effects of the utility model are that: the device has the advantages of simple structure, clear control logic, capability of predicting the occurrence of faults according to the real-time distance segmented prompt acquired by the displacement sensor, capability of carrying out fault treatment in advance and reliability in operation.

Drawings

Fig. 1 is a schematic structural diagram of a wind turbine coupling displacement monitoring device.

Fig. 2 is a flow chart of displacement monitoring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, a wind turbine coupling displacement monitoring device comprises a wind turbine transmission chain system and a displacement sensor monitoring system, wherein the wind turbine transmission chain system comprises a gear box, a speed measuring fluted disc 1, a coupling 2 and a generator, and the speed measuring fluted disc 1 is mounted on the side of the gear box and used for detecting an initial position; the output shaft of the gear box is connected with the input shaft of the generator through a coupler 2; displacement sensor monitoring system includes displacement sensor 4 and installing support 3, connect installing support 3 on the input shaft of generator, connect displacement sensor 4 on the installing support 3, displacement sensor 4 with the cooperation of fluted disc 1 tests the speed.

In the embodiment, the distance between the displacement sensor and the testing fluted disc is adjusted to be 2mm before the unit runs; when the unit normally operates, the position change can be acquired in real time through the sensor, when the acquired position distance is more than 4mm, the displacement of the coupler can be judged to exceed 2mm, and at the moment, an alarm is issued to prompt that the coupler is about to break down; when the position distance acquired by the position acquisition is larger than 6mm, fault shutdown is issued at the moment, and the coupler is prompted to have a fault; the problem can be found before the fault occurs by adopting a step-by-step judgment mode, the fault is timely processed, the fault occurrence is reduced, and the normal operation of the unit is ensured.

The embodiments described in this specification are merely examples of implementations of the inventive concepts, which are intended for illustrative purposes only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the following description, but is to be accorded the widest scope consistent with the principles and novel features as contemplated by the present invention.

Claims

1. A wind turbine coupling displacement monitoring device is characterized by comprising a wind turbine transmission chain system and a displacement sensor monitoring system, wherein the wind turbine transmission chain system comprises a gear box, a speed measuring fluted disc, a coupling and a generator; the output shaft of the gear box is connected with the input shaft of the generator through a coupler; the displacement sensor monitoring system comprises a displacement sensor and a mounting support, the mounting support is connected to the input shaft of the generator, the mounting support is connected with the displacement sensor, and the displacement sensor is matched with the speed measuring fluted disc.