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

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.

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 ...

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the shortcomings of the original function of the brake disc in the main shaft drive chain disc dynamic positioning mode of the wind turbine unit, the original function of the brake disc is affected, the self-locking effect is poor, and the control accuracy is low, the invention provides a method to ensure the original function of the brake disc. Unaffected, better self-locking effect, higher control precision wind turbine main shaft drive chain disk positioning device

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