Bending shed elbow fatigue test device

Abstract

The invention discloses a bending shed elbow fatigue test device, which comprises a workbench, a first test part and a second test part, wherein the second test part is arranged on the workbench and can fix one end of an elbow, the first test part comprises a first power piece, a first bearing plate, a first connecting piece and a first rotating piece, the first power piece is arranged on the workbench, the first bearing plate is arranged on the first power piece and can slide in the horizontal direction, the first connecting piece is movably arranged on the first bearing plate and used for being connected with the other end of the elbow, and the first rotating piece is arranged on the first bearing plate, connected with the first connecting piece and capable of driving the first connecting piece to rotate. According to the technical scheme, one end of an elbow is fixed through a second test part, and a first rotating piece and a first power piece drive the other end of the elbow to twist, stretch and compress, so that the fatigue resistance of the elbow is tested, the test effect is good, the production efficiency is greatly improved, and the construction period is greatly shortened.

Description

technical field [0001] The invention relates to the technical field of fatigue testing, in particular to a bellows elbow fatigue testing device. Background technique [0002] The elbow is a transitional part used to connect two vehicles that are articulated with each other. It is an important component structure that constitutes a through passage. However, as a transitional part, the elbow is often subjected to torsion, tension and compression. Therefore, the elbow is It is necessary to detect whether it meets the requirements for use, but in the prior art, the fatigue test of the elbow can only be performed on the entire through-passage through a long-term and multi-cycle routine test on a displacement fatigue test bench, so as to verify whether the performance of the manufactured product meets the design requirements, but this method has the following disadvantages: 1. The test effect is not ideal, and the fatigue resistance of the elbow cannot be effectively tested; 2. Th...

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Problems solved by technology

[0002] The elbow is a transition part used to connect two vehicles that are articulated with each other. It is an important component structure that constitutes the through passage. However, as a transition part, the elbow is often subjected to torsion, tension and compression. Therefore, the elbow is It is necessary to detect whether it meets the requirements of use, but in the prior art, the fatigue test of the elbow can only be carried out for a long time and multi-cycle routine test on the entire through-channel through the displacement fatigue test bench, so as to verify whether the performance of the manufactured product meets the design requirements, but this method has the following disadvantages: 1. The test effect is not ideal, and the fatigue resistance of the elbow cannot be effectively tested; 2. The efficiency is low, which causes a lag in subsequent processing

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