Antifriction bearing fatigue life testing device of crank connecting rod drive loading alternating load
A technology of rolling bearings and crank connecting rods, which is applied in the direction of mechanical bearing testing, etc., can solve problems such as single loading characteristics, difficulty in carrying out engine dynamic load rolling bearing fatigue life, and inability to realize variable loads, etc.
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[0033] A rolling bearing fatigue life testing device loaded with alternating loads driven by a crank connecting rod, such as Figure 1~2 As shown, it is used to determine the fatigue life of rolling bearings under alternating loads. The rolling bearing is composed of an outer ring, an inner ring and a plurality of rolling elements distributed between the inner ring and the outer ring through a cage. The device includes,
[0034] working platform 15,
[0035] Drive motor 2 is connected on the work platform 15,
[0036] The rotating shaft 10 is connected to the driving motor 2, preferably through a coupling 3, and the rotating shaft 10 is provided with a torque meter 4.
[0037] Two fixing fixtures—fixing fixture A5 and fixing fixture B9 are connected on the working platform 15. The fixing fixture A5 holds the accompanying test rolling bearing A14, and the fixing fixture B9 holds the accompanying test rolling bearing B11. The accompanying test rolling bearing A14 and The accom...
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