Helicopter rotor shaft bearing set testing machine

A technology of testing machine and bearing group, which is applied in the direction of mechanical bearing testing, etc., can solve the problems of inaccurate test results, impossibility of testing due to the influence of the use of rotor shaft bearings, reduction of grease, etc., and achieve the comprehensive effect of the testing method
CN113155456BActive Publication Date: 2022-06-17C&U CO LTD +3
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
C&U CO LTD
Publication Date
2022-06-17

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Abstract

The invention discloses a testing machine for a helicopter rotor shaft bearing group, comprising a loading part, a test mandrel, a test bearing sleeved on the test mandrel, an assembly assembly for installing the test mandrel and the test bearing, the assembly assembly includes a The fixed base connected to the test mandrel, the bush used to assemble the test bearing, and the cover assembled with the fixed base, the bush is located inside the cover and the outer edge of the bush is against the inner wall of the cover; the fixed base has a The oil storage tank for the grease dropped by the bearing, the oil storage tank is provided with an oil outlet hole connected to the outside; the inner ring of the test bearing is fixedly matched with the test mandrel, and the outer ring is fixedly matched with the bushing; the cover is provided with an oil inlet hole , when the grease is injected into the oil inlet, the grease spreads into the test bearing; the oil inlet and the oil outlet are connected by an oil pump. The invention can conveniently supply different kinds of lubricating grease and maintain the supply of lubricating grease to the bearing all the time.
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Description

technical field

[0001] The invention relates to a bearing detection device, in particular to a bearing group testing machine capable of simulating the working condition of a helicopter rotor shaft. Background technique

[0002] During the flight of the helicopter, the failure of any component can have catastrophic consequences. Therefore, it is a very serious and important work to determine the service life of helicopter components. In order to accurately determine the service life of the components of the helicopter, the usual practice is to carry out the fatigue test of the components of the helicopter under simulated real working conditions, and then divide the fatigue life obtained by the test by a safety factor, which is the component of the aircraft. service life.

[0003] In order to overcome the above problems, the Chinese patent application number CN201810889457.0 discloses a hydraulic loading system for a combined bearing testing machine supporting the main rotor...

Claims

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