Jib beam test fixture

Abstract

The jib beam test fixture involves the testing field of mechanical parts. The test fixture is used to test the rigidity of the left and right jib beams, including two abutments set at intervals; the sliding part, together with the abutment One is correspondingly and slidably arranged on the base platform, and the left bracket beam and the right bracket beam span across the two base platforms at the same time; The clip part is fixed; the load-bearing part is suspended between the two abutments through the axle clamping part; and the actuator is located between the left support arm beam and the right support arm beam and is fixed on the load-bearing part; the actuation The cylinder exerts force on the load-bearing parts from top to bottom, and the left and right supporting beams are simultaneously deformed and slide back and forth on the abutment through the sliding parts; through the structural design of the test tool, the left and right The paired test of the cantilever beam can effectively simulate the state of the whole vehicle, and at the same time test the rigidity of the cantilever beam to reflect the influence of manufacturing errors and manufacturing processes on the cantilever beam.

Description

technical field [0001] The invention relates to the testing field of mechanical parts, in particular to a joist beam testing tool. Background technique [0002] The four-airbag full air suspension system with parallelogram guiding structure is widely used in high-grade highway passenger cars, heavy trucks and tractors because of its excellent handling and comfort; The bearing function is also the core of connecting the guiding mechanism, the damping mechanism and the stabilizing mechanism; the joist beam is the most critical component in the suspension system. [0003] In the design of the suspension system, due to the limitation of the structural layout of the automobile chassis and the lightweight requirements of the whole vehicle, the joist beam generally adopts a cast structure to facilitate the design and development; however, the rigidity design of the joist beam needs to refer to the same life as the whole vehicle. [0004] The finite element virtual verification is ...

AI Technical Summary

Problems solved by technology

[0004] Finite element virtual verification is an indispensable part of the design and development of the supporting arm beam; even so, due to manufacturing errors and casting processes, it is still necessary to verify the supporting arm beam on a physical bench; but the traditional physical bench verification The entire suspension system is used as the test object. The disadvantage of this method is that it requires high equipment and is expensive.

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