Improved bearing life testing machine tool

Abstract

The invention relates to the technical field of bearing life testing machines, in particular to an improved bearing life testing machine tool which comprises one or two tool units and a test shaft. Each tool unit comprises an end bushing, a working bearing, an isolation ring, an L-shaped stop block and a nut, wherein the inner ring of the working bearing sleeves the test shaft, the isolation ringsleeves the test shaft in a manner of being close to the working bearing, the inner ring of a to-be-tested bearing sleeves the test shaft, the inner side of the end face of the to-be-tested bearing abuts against the isolation ring, the outer ring of the to-be-tested bearing sleeves the end bushing, the nut is in threaded connection with one end of the test shaft, the end face of the nut presses the end face of the inner ring of the to-be-tested bearing, and the L-shaped stop block is arranged between the working bearing and the to-be-tested bearing. The axial positions of the working bearing and the to-be-tested bearing can be positioned, so that the problem that the internal space does not meet the requirement of the bushing for fixing the tested bearing when a certain type of testing machine tests a larger bearing is solved.

Description

technical field [0001] The invention relates to the technical field of bearing life testing machines, in particular to an improved bearing life testing machine tooling. Background technique [0002] Bearing life testing has always played an important role in the bearing industry. The commonly used models of bearing life testing machines are ABLT-1, ABLT-2, ABLT-4, ABLT-5, etc. Different models correspond to different sizes of test bearings. The internal space of each type of testing machine is limited. In order to be able to apply more bearings for testing, there are certain requirements for the design of the bearing tooling. It must not only meet the installation requirements of the internal space of the bearing life testing machine, but also ensure that the bearing is axially fixed to ensure the test. normal operation of the machine. [0003] For a certain type of testing machine, the internal space for testing bearings is constant, and the bearings for testing need to be...

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Problems solved by technology

[0004] In view of the defects of the prior art, the present invention provides an improved tooling of the bearing life testing machine, which adopts the design of the L-shaped block, and the L-shaped block can locate the axial position of the working bearing and the test bearing to solve the problem for a certain model. When the testing machine tests larger bearings (relative to the internal space of the testing machine), the internal space does not meet the problem of fixing the test bearing with the bushing. This design can meet the normal operation requirements of the bearing testing machine and reduce the cost of the tooling used. reduce

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