Test machine for testing wind power generation pitch-controlling bearing

Abstract

A testing machine for testing wind power generation pitch bearings has a symmetrical and reverse structural layout relative to the two ends of the pitch bearing inner ring (7), that is, flanges (10) are respectively connected to the two ends of the pitch bearing inner ring, and the pitch bearing The two ends of the outer ring (8) are fixed on the testing machine by bolts (9). The two identical flanges are connected with cantilever shafts on the left and right. One shaft is active and the other is passive. The active shaft is equipped with The outer configuration of the pulley (6) is the same as that of the passive shaft system, but the structural layout is reversed; in the active shaft system, one end of the testing machine is fixed to the first hinge support (1) and connected to the axial cylinder (2), and the axial cylinder is connected to the shaft (5), the shaft is connected with the left flange, and the shaft is sequentially arranged with a force sensor (3), a second hinge support (13), a loading bearing (4), and a pulley, and a loading sleeve (12) is arranged on the loading bearing , the loading sleeve is connected with the radial oil cylinder (11) through the third hinge support (14), and the radial oil cylinder is equipped with a force sensor. Simple structure and strong self-control.

Description

technical field [0001] The invention belongs to the technical field of bearing testing, and in particular relates to a testing machine for testing wind power generation pitch bearings. Background technique [0002] Wind power is a clean and renewable energy project, which was designated by the State Council as one of the sixteen major technical projects for key development at the beginning of this year. Wind power pitch bearings are one of the important components of wind power generators. With the successful development of domestic wind power pitch bearings, it has changed the history of the fan industry's pitch bearings all relying on imports. [0003] Wind power pitch bearings are extra-large bearings, which are generally installed at a height of tens of meters. Under normal working conditions, they bear combined radial and axial loads, overturning moments, and harsh working environment temperatures of the bearings, and require continuous and trouble-free work. This must...

AI Technical Summary

Problems solved by technology

[0004] At present, due to the lack of perfect test equipment and test technology, the lack of corresponding means for the assessment of the comprehensive performance of wind power pitch bearings, and the inability to obtain scientific and accurate test data, the lack of long-life, high-reliability wind power pitch bearings in experimental research Technical support has restricted the further development of domestic wind power pitch bearing products

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