Design of Hydraulic Locking Mechanism Based on Material Friction

Abstract:

Hydraulic cylinders are the actuators used in driving and bearing heavy loads. In normal conditions, it is required to bear load steadily for long time. Due to the inevitable internal leakage of traditional hydraulic cylinder, the strict conditions of the applications are always hard to meet. The materials selecting of cylinder and lock sleeve is very important on a new type of locking mechanism. This paper presents the design of hydraulic locking mechanism based on material friction properties. The strength, elasticity, temperature coefficient, and the factors such as friction coefficient are considered in the process of design. The choosing of materials of the cylinder and the lock sleeve are proposed based on different specific situations, such as steel and steel, steel and nodular cast iron, steel and bronze, steel and aluminum alloy. The paper take 45# steel cylinder body and QT50-5 lock sleeve as an example to illustrate the design process of locking mechanism.

• Periodical: Key Engineering Materials (Volume 667)
• Pages: 481-486
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.667.481
• Online since: October 2015
• Authors: Wen Dong Zhu, Xu Dong Pan, Ye Li, Wei Jie Huo
• Keywords: Friction, Hydraulic Locking Mechanism, Metal Materials

References

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DOI: 10.1016/j.compscitech.2005.05.032