Movable positioning device for main shaft transmission chain disc of wind generation unit

A technology of spindle drive and wind turbines, which is applied in the assembly of wind turbines, wind power generation, wind turbines, etc., can solve the problems of brake disc influence, low control precision, poor self-locking effect, etc., and achieve reliable self-locking performance

CN107524571APending Publication Date: 2017-12-29宁夏运达风电有限公司
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-12-29

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a movable positioning device for a main shaft transmission chain disc of a wind generation unit. Radial threaded holes are processed along the outer circular surface of a high-speed shaft brake circular disc of a gearbox; each radial threaded hole is equipped with a rolling needle, so that an indexing disc is formed; a spiral cam drive device is mounted on a brake mounting base at the rear side of the gearbox of the wind generation unit; the spiral cam drive device comprises a conjugated spiral cam and a drive motor used for driving the conjugated spiral cam to rotate; the conjugated spiral cam is in zero-clearance mesh with the indexing disc to form a spiral cam transmission chain; and output torque of the driver is transmitted to each indexing disc. The invention provides the movable positioning device for the main shaft transmission chain disc of the wind generation unit, and the movable positioning device ensures that original functions of a brake circular disc are not affected, the self-locking effect is relatively good, and control precision is relatively high.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of wind turbines, in particular to a disc motion positioning device for a main shaft transmission chain of a wind turbine. Background technique

[0002] With the rapid development of the wind power industry, the scale of a single wind turbine is increasing. With the increase of the scale of a single unit, the corresponding components of the unit are also getting bigger and bigger. For example, components such as blades, hubs, main shafts and gearboxes of wind turbines are constantly getting bigger. As these components get bigger, some operations on these components become more and more difficult from the simple and easy before. For example, the installation of wind turbine rotors in wind turbines and the rotating operation of the transmission chain involved in high-speed shaft alignment are now almost impossible to complete with simple manual operations.

[0003] Due to the increase in the size of the wind turbine ...

Examples

Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] refer to Figure 1 to Figure 6 , a wind turbine main shaft drive chain disc dynamic positioning device, a certain number of radial threaded holes are processed along the outer surface of the brake disc of the high-speed shaft of the gearbox. When the transmission chain rotates, the needle rollers are installed in the radial threaded holes to form an indexing plate. A helical cam driving device is installed on the brake mounting seat on the rear side of the wind turbine gearbox, and the rotation of the helical cam drives the indexing disc to rotate, thereby driving the rotation of the entire transmission chain. The wind turbine main shaft drive chain disc dynamic positioning device mainly includes: indexing plate 1, helical cam driver 2, stepping reducer 3, flange support 4 and intermediate coupling 5.

[0033]Further, the indexing plate 1 mainly includes: an i...