The reliability of the hydraulic system is the key to improving the service life of the equipment
The design method of traditional hydraulic baler and system has been gradually established and perfected. The design of hydraulic baler and system has not been considered and implemented quantitatively from the perspective of reliability. In recent years, with the development of technology, the technology of hydraulic baler has been improved. Put forward higher requirements, improving the reliability of equipment and systems has become an urgent problem to be solved, because it is the key to improving the service life of equipment.
As the main content of the reliability engineering of hydraulic baler, it is still immature and needs further development and improvement. It draws on the basic theories of reliability design and combines the specific characteristics of hydraulic technology with probability theory, mathematical statistics, fluid mechanics and cybernetics. Based on the comprehensive application of engineering mechanics, tribology, mechanical engineering and other knowledge, system engineering and operations research research discusses the reliability design of hydraulic baler and system.
The service life of the hydraulic baler is determined by many aspects and requires in-depth study. For the reliability index of the hydraulic baler
, except for a few occasions that require high reliability due to short working hours, the failure rate after reliability is used to express, For most civilian occasions, service life indicators are required.
Life indicators include average life and median life. No matter what life is given, it is based on a large number of reliability test probability values. For mechanical products, this value is rarely given, and the service life is often assigned; the service life is a A fuzzy concept, it is related to the working state of the hydraulic baler
. The equipment does not work 100% of the time under rated conditions, sometimes does not work at 50% and 20% of the rated load, and sometimes does not work in unloading conditions. On the one hand, the service life is longer than the average life obtained under rated conditions. It is also because the test workload of reliability probability index is too large.
Foreign hydraulic baler
manufacturers did not use this method for reliability testing, but based on sampling life test and host usage survey, and based on experience to give the corresponding service life value, how to evaluate the reliability index of hydraulic baler
is also worthwhile Questions for further research.
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