Optimization of the hydraulic hammer operating cycle with combined control unit
Оптимизация рабочего цикла гидравлического ударного механизма с совмещенным органом управления
Reshetnikova O.S. Kyzyrov K.B. Zhetesova G.S. Yurchenko V.V. Zharkevich O.M. Ashimbayev D.A.
2025Ugol Journal Edition, LLC
Ugol
2025Issue 293 - 99 pp.
The article synthesizes the design scheme of a hydraulic impact mechanism (HIM) with a combined control body, and also constructs the main characteristics of the working cycle: an indicator diagram of the pressure change in the working stroke controlled chamber [P = f(x)], phase control [R = f(x)] and a phase portrait [v = f(x)]. As a result of the studies of the energy content of the working cycle phases such as idle and working strokes, fluid inlet and outlet from the controlled working stroke chamber (WWSCh), the functional dependencies of the indicated efficiency (hin), the compactness index of the chamber design volume (Δw), the piston-striker working stroke (s) of the HIM were established. The HIM initial parameters are the energy Ai and the frequency fof impacts; the working pressure of the base machine hydraulic drive Pp′ and the modulus of elasticity of the working fluid Ef By optimizing the working cycle according to the pressure drop coefficient k = ΔP/Pp at the working fluid inlet and outlet from the WWSCh the ideal working cycle rational parameters have been established, which are recommended for calculating the design parameters of the HIM: k = 0.4; hиH = 0.75; ΔW =4.17.
elastic modulus , Hydraulic impact mechanism , indicator diagram , massless piston , phase control , phase portrait , pressure stabilizer , working cycle
Text of the article Перейти на текст статьи
Department Technological equipment, engineering and standardization, Abylkas Saginov Karaganda Technical University, Karaganda, 100027, Kazakhstan
Department Technological equipment
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026