一种气缸套机械应力疲劳试验装置
By designing a non-standard connecting rod and a cylinder liner mechanical stress fatigue testing device based on dynamic calculations, the simultaneous loading of maximum gas and lateral force was achieved, solving the problem that existing devices could not accurately assess the stress, and improving the reliability of the test and the consistency of the results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NORTH ENGINE RES INST
- Filing Date
- 2023-12-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cylinder liner fatigue testing equipment cannot simultaneously apply the maximum gas force and lateral force, resulting in inaccurate test results. Furthermore, existing methods may affect the reliability of the piston or fail to achieve lateral force loading.
A cylinder liner mechanical stress fatigue testing device is designed. Non-standard connecting rods and dynamic calculation methods are used to ensure that the lateral force loading position is consistent with the whole machine. The maximum combustion pressure is simulated through the hydraulic oil channel. The cylinder head bolt pre-tightening specification of the whole machine is used to achieve simultaneous loading of maximum gas and lateral force.
This improves the accuracy and reliability of cylinder liner fatigue testing, ensures that the loading conditions are consistent with the overall machine condition, and enables better assessment of the mechanical stress fatigue life of the cylinder liner.
Smart Images
Figure CN117760737B_ABST