RESEARCH PAPER
Study on the influence of pin shaft clearance on the bearing performance of the hydraulic support
1
Shandong University of science and technology, China
These authors had equal contribution to this work
Submission date: 2023-07-27
Final revision date: 2023-10-10
Acceptance date: 2023-10-21
Online publication date: 2023-10-26
Publication date: 2023-10-26
Eksploatacja i Niezawodność – Maintenance and Reliability 2023;25(4):174367
HIGHLIGHTS
- This study addresses the often-neglected issue of pin clearance by developing a dynamic simulation model for hydraulic support using the Lankarani-Nikravesh (L-N) contact model. Hydraulic support behavior with pin clearance is analyzed through the simulation.
- A comparative assessment of bearing capacity of hydraulic support is conducted with and without clearance, highlighting the effects of clearance size and position on bearing capacity.
- An orthogonal test group is designed to explore bearing capacity of hydraulic support variation in multi-clearance coupling scenarios, underscoring the importance of investigating pin clearance.
KEYWORDS
TOPICS
ABSTRACT
The pin clearance is a significant factor affecting the bearing capacity of the hydraulic support, but the effect of the pin clearance is often neglected in the current studies. Therefore, on the basis of considering the Equal stiffness spring damping system of the column, the dynamic simulation model of the hydraulic support without clearance was constructed to study the static bearing capacity of the hydraulic support. Moreover, as per the contact model of the connecting pin clearance, the dynamic simulation model of the single-pin clearance hydraulic support was established. The effect of single pin clearance on the load of the front and rear columns of the hydraulic support and the transmission force at key bearing points was analyzed. Meanwhile, the influence of single pin clearance at different positions on the bearing capacity of the hydraulic support was compared. Through the design of orthogonal test, the change of the transmission force of the bearing points under the coupling of multi-pin clearance was studied.
ACKNOWLEDGEMENTS
This work was supported by National Natural Science Foundation of China (Grant No. 52304143, 51974170)
and National Natural
Science Foundation of Shandong Province (Grant No. ZR2022QE022).
| eISSN: | 2956-3860 |
| ISSN: | 1507-2711 |
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