A bearing collision test device

Abstract

The invention provides a bearing collision experimental method and device. A collision mechanism drives a to-be-tested bearing to move towards a rotating wheel and collide with the rotating wheel, anda variable frequency motor drives the rotating wheel to rotate, so that the to-be-tested bearing rotates synchronously. The collision mechanism comprises a sliding rail, a first sliding table and a second sliding table are arranged on the sliding rail, a pushing rod used for placing the to-be-tested bearing is mounted on the second sliding table, a lead screw capable of driving the first slidingtable to move is further mounted on the sliding rail, a pressure sensor is arranged between the first sliding table and the second sliding table, a pressing plate is mounted on the first sliding table, a through groove is formed in the pressing plate, a pullback block is connected to the second sliding table, when the lead screw drives the first sliding table to get away from the rotating wheel, the through groove can drive the pullback block to move, and thus the first sliding table drives the second sliding table to get away from the rotating wheel; and a controller can adjust the rotating speed of the variable frequency motor, when the to-be-tested bearing collides with the rotating wheel, and after the number of the rotating turns of a stepping motor reaches the preset value, the controller controls the stepping motor to drive the lead screw to rotate reversely, so that the to-be-tested bearing is separated from the rotating wheel, and it is ensured that collision force does not exceed the predetermined maximum value.

Description

technical field [0001] The invention relates to the field of bearing collision experiments, in particular to a bearing collision experiment device. Background technique [0002] Bearings are an integral part of many mechanical structures, ranging from small toy machinery to high-speed rail and aerospace, all of which require bearings as rotating parts. During the operation of some bearings, due to different working conditions, they will move with the components and collide with other components, and the collisions are often periodic. It is very important to test and evaluate. In the bearing collision experiment, in order to effectively simulate the collision during the working process of the bearing, it is necessary to let the bearing to be tested move and collide with the object to be collided while rotating, and in order to obtain experimental results with practical reference value, the rotational speed of the bearing to be tested , The magnitude of the collision force o...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the above-mentioned existing bearing collision test device is difficult to meet the requirements of use, the present invention provides a bearing collision test device

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