Lever power-driven loading type rolling contact fatigue test machine

Abstract

The invention discloses a lever power-driven loading type rolling contact fatigue test machine which comprises a machine body, a loading system, a transmission system, a lubrication system and an information acquisition control system. The lever power-driven loading type rolling contact fatigue test machine is characterized in that the loading system comprises a stepping motor, a ball screw, a weight, a weight tray, a jack fixing frame and a power-driven jack. The output shaft of the stepping motor is connected with the ball screw through a plum coupling, the power-driven jack is arranged in the jack fixing frame, the weight is mounted on the weight tray and controlled by the stepping motor to move on a lever, and loads are loaded to a test piece automatically through the self weight of the weight and the principle of lever amplification. The lever power-driven loading type rolling contact fatigue test machine can implement loading of variable loads on a bearing and detect key parameters of contact fatigue of materials, energy and electricity are saved, cost is lowered, and economic benefits are increased.

Description

technical field [0001] The invention belongs to the field of testing machinery and relates to a lever electric loading type rolling contact fatigue testing machine. Background technique [0002] At present, the quality of bearings restricts the development of high-speed and heavy-duty machinery in China, especially contact fatigue, which is one of the most important failure forms of rolling bearings. Therefore, the high-speed contact fatigue testing machine that accurately simulates the actual working environment has become a material choice for high-speed rolling bearings. It is an indispensable means for structural design and practical application. [0003] In the prior art, the high-speed rolling contact fatigue testing machine disclosed in the "high-speed rolling contact fatigue testing machine" (patent application number: ZL201310272071.2), which is being applied for in my country, is a special equipment for rolling contact fatigue testing. The loading method is electri...

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Problems solved by technology

[0003] In the prior art, the high-speed rolling contact fatigue testing machine disclosed in the "high-speed rolling contact fatigue testing machine" (patent application number: ZL201310272071.2), which is being applied for in my country, is a special equipment for rolling contact fatigue testing. The loading method is electric cylinder loading, although it can implement variable load loading on the bearing and detect the key parameters of material contact fatigue, but because the electric cylinder loading method is to directly load the workpiece, it consumes a lot of electric energy, resulting in high cost. High, affecting economic benefits

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