Scale-reduced wind power equipment transmission chain simulated test system supported by rigid-flexible coupling

Abstract

The invention discloses a scale-reduced wind power equipment transmission chain simulated test system supported by rigid-flexible coupling, which comprises a motor, a main transmission shaft, a main gear case and a secondary test gear case connected with one another sequentially, wherein the main transmission shaft is connected between the motor and the main gear case; the motor is connected with the main transmission shaft through a rigid connecting piece; the main transmission shaft is connected with the main gear case through a spindle-main gear case rigid connecting piece; the motor is fixed on a basic rack through two elastic supporting elements; the main gear case is fixed on the basic rack through two elastic supporting elements; the secondary test gear case is fixed on the basic rack through an elastic element; the main transmission shaft is fixed on the basic rack through a spindle base; and the main gear case is connected with the secondary test gear case through a rigid coupling element. The critical components of the wind power equipment main transmission chain are purposefully reconstructed in a scale reduction manner; and by virtue of the rigid-flexible coupling connection and supporting manners, the actual working situation of the main transmission chain of the wind power generating device installed at high altitude is relatively integrally simulated.

Description

technical field [0001] The invention relates to a test system for a gear transmission chain of a doubly-fed wind power generation equipment, in particular to a simulation test system for a reduced-scale wind power transmission chain supported by rigid-flexible coupling. Background technique [0002] Ensuring high reliability under long service life is not only the development direction of wind power equipment in the contemporary world, but also a major challenge to the design, manufacture and operation technology of wind power equipment transmission chain. Statistics show that the failure of key mechanical parts in the wind power transmission chain is a major problem affecting the reliability of the wind power system, which needs to be solved urgently; A series of basic research work has been carried out, which is of great significance to the research and development of advanced design, manufacture and operation technology of wind power gearbox system. For these research an...

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Problems solved by technology

[0004] 1) The wind rotor in the actual wind power system is affected by the alternating wind load at high altitude, and its load characteristics, dynamic characteristics, etc., cannot be simulated by the motor rigidly installed on the foundation platform

[0005] 2) Basic wind power gearbox performance tests can be carried out, but the role of the main drive shaft system, which is a key component of the wind power main transmission chain and has a greater impact on the installation and movement of the wind power gearbox, is ignored

[0006] 3) It fails to reflect the technical state of the elastic support of the actual wind turbine gearbox

[0007] 4) The gap between the overall assembly form, kinematics and dynamic characteristics and the actual technical state of the high-altitude gearbox is too large, which reduces the guiding significance of the simulation test results for the technical research of wind power gearboxes

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