论文部分内容阅读
针对阀控式液压冲击系统的换向过程的能量损失缺陷,提出了一种无阀控液压冲击系统结构原理,建立了其动力学方程,利用AMESim软件进行了仿真分析。根据仿真结果与设计目标的误差,提出采用增加节流装置和控制进、出油路两种方案。仿真结果表明,采用增加节流装置时且节流孔径为6.5 mm时,其工作效率由11.8%提高到18.3%;采用控制进、出油路方案,其工作效率由11.8%提高到26.4%,冲击系统改善效果明显,达到了预期设计目标,该研究为液压冲击系统的设计和理论研究提供了技术参考。
Aiming at the energy loss defect of valve-controlled hydraulic impact system during commutation, a valveless hydraulic impact system structure principle is proposed. Its dynamic equation is established and simulated by AMESim software. According to the error between the simulation result and the designed target, two schemes of increasing the throttling device and controlling the inlet and outlet are put forward. The simulation results show that the operating efficiency increases from 11.8% to 18.3% when the throttling device is added and the orifice diameter is 6.5 mm. With the control of inlet and outlet routes, the working efficiency increases from 11.8% to 26.4% Impact system to improve the effect of obvious, to achieve the desired design goals, the study for the hydraulic impact system design and theoretical research provides a technical reference.